DRC-2023-001893 - 0901a0688119affd

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February 20, 2023
Sent VIA EXPEDITED DELIVERY
Mr. Doug Hansen Director Division of Waste Management and Radiation Control Utah Department of Environmental Quality 195 North 1950 West Salt Lake City, UT 84116
Energy Fuels Resources (USA) Inc. 225 Union Blvd. Suite 600 Lakewood, CO, US, 80228 303 974 2140
W\ w.nergvfucls.com
Re: Transmittal of 4th Quarter 2022 Routine Chloroform Monitoring Report UDEQ Docket No. UGW-20-01 White Mesa Uranium Mill
Dear Mr. Hansen:
Enclosed are two copies of the White Mesa Uranium Mill Chloroform Monitoring Report for the 4th Quarter of 2022 as required by the Stipulation and Consent Order, UDEQ Docket No. UGW-20-01 as well as two CDs, that each contains a word searchable electronic copy of the report.
If you should have any questions regarding this report please contact me.
Yours very truly,
ENERGY FUELS RESOURCES (USA) INC.Kathy Weinel Director, Regulatory Compliance
cc: David Frydenlund
Logan Shumway Scott Bakken Garrin Palmer Jordan App Dawn Kolkman John Uhrie
DRC-2023-001893
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--1,,,;~~ERGY FUELS
February 20, 2023
Sent VIA EXPEDITED DELIVERY
Mr. Doug Hansen
Director
Division of Waste Management and Radiation Control
Utah Department of Environmental Quality
195 North 1950 West
Salt Lake City, UT 84116
Energy Fuels Resources (USA) Inc.
225 Union Blvd. Suite 600
Lakewood, CO, US, 80228
303 974 2140
www.energyfuels.com
Re: Transmittal of 4th Quarter 2022 Routine Chloroform Monitoring Report
UDEQ Docket No. UGW-20-01 White Mesa Uranium Mill
Dear Mr. Hansen:
Enclosed are two copies of the White Mesa Uranium Mill Chloroform Monitoring Report for the 4th Quarter of
2022 as required by the Stipulation and Consent Order, UDEQ Docket No. UGW-20-01 as well as two CDs, that
each contains a word searchable electronic copy of the report.
If you should have any questions regarding this report please contact me.
Yours very truly,
ENERGY FUELS RESOURCES (USA) INC.
Kathy Weinel
Director, Regulatory Compliance
cc: David Frydenlund
Logan Shumway
Scott Bakken
Garrin Palmer
Jordan App
Dawn Kolkman
John Uhrie
White Mesa Uranium Mill
Chloroform Monitoring Report
State of Utah
Stipulation and Consent Order Docket No. UGW-20-01
(October through December)
2022
Prepared by:
Energy Fuels Resources (USA) Inc.
225 Union Boulevard, Suite 600
Lakewood, CO 80228
February 20, 2023
TABLE OF CONTENTS
1.0 INTRODUCTION ................................................................................................. 1
2.0 CHLOROFORM MONITORING ....................................................................... 1
2.1 Samples and Measurements Taken During the Quarter ...................................... 1
2.1.1 Chloroform Monitoring ............................................................................... 1
2.1.2 Parameters Analyzed ................................................................................... 2
2.1.3 Groundwater Head Monitoring .................................................................... 2
2.2 Sampling Methodology and Equipment and Decontamination Procedures ....... .3
2.2.1 Decontamination Procedures ....................................................................... 3
2.2.2 Well Purging and Depth to Groundwater ................................................... .4
2.2.3 Sample Collection ........................................................................................ 5
2.3 Field Data ............................................................................................................. 5
2.4 Depth to Groundwater Data and Water Table Contour Map ............................... 6
2.5 Laboratory Results ............................................................................................... 6
2.5.1 Copy of Laboratory Results ......................................................................... 6
2.5.2 Regulatory Framework ................................................................................ 6
3.0 QUALITY ASSURANCE AND DATA VALIDATION .................................... 6
3 .1 Field QC Samples ................................................................................................ 7
3.2 Adherence to Mill Sampling SOPs ...................................................................... 7
3 .3 Analyte Completeness Review ............................................................................ 7
3 .4 Data Validation .................................................................................................... 7
3.4.1 Field Data QA/QC Evaluation ..................................................................... 8
3.4.2 Holding Time Evaluation ............................................................................ 9
3.4.3 Receipt Temperature Evaluation ................................................................. 9
3 .4.4 Analytical Method Checklist ....................................................................... 9
3.4.5 Reporting Limit Evaluation ......................................................................... 9
3 .4.6 Receipt pH Evaluation ............................................................................... 10
3 .4. 7 Trip Blank Evaluation ................................................................................ 10
3.4.8 QA/QC Evaluation for Sample Duplicates ................................................ 10
3.4.9 Rinsate Sample Check ............................................................................... 10
3 .4.10 Other Laboratory QA/QC .......................................................................... 11
4.0 INTERPRETATION OF DATA ........................................................................ 12
4.1 Interpretation of Groundwater Levels, Gradients and Flow Directions ............ 12
4.1.1 Current Site Groundwater Contour Map ................................................... 12
4.1.2 Comparison of Current Groundwater Contour Maps to Groundwater
Contour Maps for Previous Quarter ......................................................... 20
4.1.3 Hydro graphs .............................................................................................. 21
4.1.4 Depth to Groundwater Measured and Groundwater Elevation ................. 21
4.1.5 Evaluation of the Effectiveness of Hydraulic Capture ............................. 21
4.2 Review of Analytical Results ............................................................................ 26
4.2.1 Current Chloroform Isoconcentration Map ............................................... 26
4.2.2 Chloroform Concentration Trend Data and Graphs .................................. 26
4.2.3 Interpretation of Analytical Data ............................................................... 26
1
5.0 LONG TERM PUMP TEST AT MW-4, MW-26, TW4-19, TW4-20, AND
TW4-4 OPERATIONS REPORT ...................................................................... 30
5.1 Introduction ........................................................................................................ 30
5.2 Pump Test Data Collection ................................................................................ 31
5.3 Water Level Measurements ............................................................................... 31
5.4 Pumping Rates and Volumes ............................................................................. 32
5.5 Mass Removed and Plume Residual Mass ........................................................ 32
5.6 Inspections ......................................................................................................... 33
5.7 Conditions That May Affect Water Levels in Piezometers ............................... 33
6.0 CORRECTIVE ACTION REPORT .................................................................. 33
6.1 Assessment of Previous Quarter's Corrective Actions ...................................... 33
7.0 CURRENT COMPLIANCE STATUS .............................................................. 33
7.1 Long Term Chloroform Plume Control.. ........................................................... 33
7.2 Well Construction, Maintenance and Operation ............................................... 34
7.3 Disposal of Extracted Groundwater ................................................................... 35
7.4 Compliance Well Performance .......................................................................... 35
7.5 Chloroform Plume Monitoring for Wells within 500 Feet of the Property
Boundary ........................................................................................................... 35
8.0 CONCLUSIONS AND RECOMMENDATIONS ............................................ 35
9.0 ELECTRONIC DATA FILES AND FORMAT .............................................. .41
10.0 SIGNATURE AND CERTIFICATION ............................................................ 42
LIST OF TABLES
Table 1 Summary of Wells Sampling for the Period
11
INDEX OF TABS
Tab A Site Plan and Perched Well Locations White Mesa Site
Tab B Order of Sampling and Field Data Worksheets
Tab C Weekly and Monthly Depth to Water Data
Tab D Kriged Current Quarter Groundwater Contour Map, Capture Zone Map, Capture
Zone Details Map and Depth to Water Data
Tab E Kriged Previous Quarter Groundwater Contour Map
Tab F Depths to Groundwater and Elevations and Hydrographs of Groundwater
Elevations over Time for Chloroform Monitoring Wells
Tab G Chloroform Mass Removed and Volume Pumped in Chloroform Pumping Wells
over Time
Tab H Laboratory Analytical Reports
Tab I Quality Assurance and Data Validation Tables
1-1 Field Data QA/QC Evaluation
1-2 Holding Time Evaluation
1-3 Receipt Temperature Check
1-4 Analytical Method Check
1-5 Reporting Limit Evaluation
1-6 Trip Blank Evaluations
1-7 QA/QC Evaluation for Sample Duplicates
1-8 QC Control Limits for Analyses and Blanks
1-9 Rinsate Check
Tab J Kriged Current Quarter Chloroform lsoconcentration Map
Tab K Analyte Concentration Data and Chloroform Concentration Trend Graphs over
Time
Tab L Contour Map Based Chloroform Plume Mass Calculations and Data Over Time
Tab M CSV Transmittal Letter
Tab N Exceedance Notices for the Reporting Period
lll
1.0 INTRODUCTION
The presence of chloroform was initially identified in groundwater at the White Mesa Mill (the
"Mill") as a result of split sampling performed in May 1999. The discovery resulted in the
issuance of State of Utah Notice of Violation ("NOV") and Groundwater Corrective Action
Order ("CAO") State of Utah Department of Environmental Quality ("UDEQ"), Division of
Waste Management and Radiation Control ("DWMRC") Docket No. UGW-20-01, which
required that Energy Fuels Resources (USA) Inc. ("EFRI") submit a Contamination Investigation
Plan and Report pursuant to the provisions of UAC R317-6-6.15(D). In response to the NOV,
EFRI submitted a series of documents outlining plans for investigation of the chloroform
contamination. This plan of action and preliminary schedule was set out in EFRI submittals
dated: September 20, 1999; June 30, 2000; April 14, 2005; and November 29, 2006. EFRI
submitted a draft Groundwater Corrective Action Plan ("GCAP") dated August 22, 2007. The
draft GCAP was reviewed by the Director, who advised EFRI in 2013 that modifications were
required. In ari effort to expedite and formalize active and continued remediation of the
chloroform plume, both parties have agreed to the GCAP found in Attachment 1, of the final
Stipulation and Consent Order ("SCO") dated September 14, 2015.
This is the Quarterly Chloroform Monitoring Report for the fourth quarter of 2022 as required
under the SCO. This report also includes the Operations Report for MW-04, TW4-01, TW4-04,
TW4-02, TW4-11, TW4-19, TW4-21, MW-26, TW4-22, TW4-24, TW4-25, TW4-37, TW4-39,
TW4-40, and TW4-41 for the quarter.
2.0 CHLOROFORM MONITORING
2.1 Samples and Measurements Taken During the Quarter
A map showing the location of all groundwater monitoring wells, piezometers, existing wells,
temporary chloroform contaminant investigation wells and temporary nitrate investigation wells
is attached under Tab A. Chloroform samples and measurements taken during this reporting
period are discussed in the remainder of this section.
2.1.1 Chloroform Monitoring
Quarterly sampling for chloroform monitoring parameters is currently required in the following
wells:
MW-4 TW4-9 TW4-18 TW4-28 TW4-37
TW4-l TW4-10 TW4-19 TW4-29 TW4-38
TW4-2 TW4-l l TW4-21 TW4-30 TW4-39
TW4-3 TW4-12 TW4-22 TW4-31 TW4-40
TW4-4 TW4-13 TW4-23 TW4-32 TW4-41
TW4-5 TW4-14 TW4-24 TW4-33 TW4-42
TW4-6 MW-26 (formerly TW4-15) TW4-25 TW4-34 TW4-43
TW4-7 TW4-16 TW4-26 TW4-35
TW4-8 MW-32 (formerly TW4-l 7) TW4-27 TW4-36
1
Chloroform monitoring was performed in all of the required chloroform monitoring wells. Table
1 provides an overview of all wells sampled during the quarter, along with the date samples were
collected from each well, and the date(s) when analytical data were received from the contract
laboratory. Table 1 also identifies equipment rinsate samples collected, as well as sample
numbers associated with the deionized field blank ("DIFB") and any required duplicates.
2.1.2 Parameters Analyzed
Wells sampled during this reporting period were analyzed for the following constituents:
• Chloroform
• Chloromethane
• Carbon tetrachloride
• Methylene chloride
• Chloride
• Nitrate plus Nitrite as Nitrogen
Use of analytical methods is consistent with the requirements of the Chloroform Investigation
Monitoring Quality Assurance Program (the "Chloroform QAP") attached as Appendix A to the
White Mesa Uranium Mill Groundwater Monitoring QAP Revision 7.7, dated February 15,
2022.
2.1.3 Groundwater Head Monitoring
Depth to groundwater was measured in the following wells and/or piezometers, pursuant to Part
I.E.3 of the Groundwater Discharge Permit (the "GWDP"):
• The quarterly groundwater compliance monitoring wells
• Existing monitoring well MW-4 and all of the temporary chloroform investigation wells
• Piezometers P-1, P-2, P-3A, P-4 and P-5
• MW-20 and MW-22
• Nitrate monitoring wells
• The DR piezometers that were installed during the Southwest Hydrologic Investigation
In addition to the above, depth to water measurements are routinely observed in conjunction with
sampling events for all wells sampled during quarterly and accelerated efforts, regardless of the
sampling purpose.
Weekly and monthly depth to groundwater measurements were taken in the chloroform pumping
wells MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39,
TW4-40, and TW4-41 and the nitrate pumping wells TW4-22, TW4-24, TW4-25, and TWN-02.
In addition, monthly water level measurements were taken in non-pumping wells TW4-3 through
TW4-10, TW4-12 through TW4-14, TW4-16, TW4-18, TW4-26 through TW4-36, TW4-38,
TW4-42, TW4-43, MW-27, MW-30, MW-31, TWN-1, TWN-3, TWN-4, TWN-7, and TWN-18.
2
2.2 Sampling Methodology and Equipment and Decontamination Procedures
EFRI completed, and transmitted to DWMRC on May 25, 2006, a revised QAP for sampling
under the Mill's GWDP. While the water sampling conducted for chloroform investigation
purposes has conformed to the general principles set out in the QAP, some of the requirements in
the QAP were not fully implemented prior to DWMRC's approval of the QAP, for reasons set
out in correspondence to DWMRC dated December 8, 2006. Subsequent to the delivery of the
December 8, 2006 letter, EFRI discussed the issues brought forward in the letter with DWMRC
and has received correspondence from DWMRC about those issues. In response to DWMRC's
letter and subsequent discussions with DWMRC, EFRI modified the chloroform Quality
Assurance ("QA") procedures within the Chloroform QAP. The Chloroform QAP describes the
requirements of the chloroform investigation program and identifies where they differ from the
Groundwater QAP. On June 20, 2009 the Chloroform QAP was modified to require that the
quarterly chloroform reports include additional items specific to EFRI's ongoing pump testing
and chloroform capture efforts. The Groundwater QAP as well as the Chloroform QAP were
revised again on June 6, 2012, August 15, 2017, July 23, 2018, May 14, 2019, August 22, 2019,
and February 15, 2022. The revised Groundwater QAP and Chloroform QAP, Revision 7.7 was
approved by DWMRC on March 31, 2022.
The sampling methodology, equipment and decontamination procedures used in the chloroform
contaminant investigation, as summarized below, are consistent with the approved QAP and the
Chloroform QAP.
2.2.1 Decontamination Procedures
Non-dedicated sampling equipment is decontaminated prior to use as described in the DWMRC-
approved QAP and as summarized below.
The water level meter is decontaminated with a detergent/deionized ("DI") water mixture by
pouring the solutions over the water level indicator. The water level meter is then rinsed with DI
water.
The field measurement instrument probe is decontaminated by rinsing with DI water prior to
each calibration. The sample collection cup is washed with a detergent/DI water solution and
rinsed with fresh DI water prior to each calibration.
The non-dedicated purging pump is decontaminated after each use and prior to use at subsequent
sampling locations using the following procedures:
a) the pump is submerged into a 55-gallon drum of nonphosphate detergent/DI water mixture;
b) the detergent/DI water solution is pumped through the pump and pump outlet lines;
c) the pump is submerged into a 55-gallon drum of DI water;
d) the DI water solution is pumped through the pump and pump outlet lines;
3
2.2.2 Well Purging and Depth to Groundwater
The non-pumping wells are purged prior to sampling by means of a portable pump. A list of the
wells in order of increasing chloroform concentration is generated quarterly. The order for
purging the non-pumping wells is thus established. The list is included with the Field Data
Worksheets under Tab B. Mill personnel start purging with all of the non-detect wells and then
move to the wells with detectable chloroform concentrations staring with the lowest
concentration and proceeding to the wells with the highest concentration. One deviation to this
practice is made for the continuously pumping wells. These wells are sampled throughout the
sampling event and are not sampled in the order of contamination. This practice does not affect
the samples for this reason: the pumping wells have dedicated pumps and there will be no cross-
contamination resulting from the sampling order.
Samples are collected by means of disposable bailer(s) the day following the purging. The
disposable bailer is used only for the collection of a sample from an individual well and disposed
subsequent to the sampling. As noted in the approved QAP, sampling will generally follow the
same order as purging; however; the sampling order may deviate slightly from the generated list.
This practice does not affect the samples for these reasons: any wells sampled in slightly
different order either have dedicated pumps or are sampled via a disposable bailer. This practice
does not affect the quality or usability of the data as there will be no cross-contamination
resulting from the sampling order.
Before leaving the Mill office, the portable pump and hose are rinsed with DI water. Where
portable (non-dedicated) sampling equipment is used, a rinsate sample is collected at a frequency
of one rinsate sample per 20 field samples. Well depth measurements are taken and the one
casing volume is calculated for those wells which do not have a dedicated pump as described in
Attachment 2-3 of the QAP. Purging is completed to remove stagnant water from the casing and
to assure that representative samples of formation water are collected for analysis. There are
three purging strategies that are used to remove stagnant water from the casing during
groundwater sampling at the Mill. The three strategies are as follows:
1. Purging three well casing volumes with a single measurement of field parameters
specific conductivity, turbidity, pH, redox potential, Dissolved Oxygen ("DO") and water
temperature
2. Purging two casing volumes with stable field parameters for specific conductivity,
turbidity, pH, redox potential, DO, and water temperature (within 10% Relative Percent
Difference ["RPD"])
3. Purging a well to dryness and stability (within 10% RPD) of field parameters for pH,
~pecific conductivity, and water temperature only after recovery
If the well has a.dedicated pump, it is pumped on a set schedule per the remediation plan and is
considered sufficiently evacuated to immediately collect a sample; however, if a pumping well
has been out of service for 48 hours or more, EFRI will follow the purging requirements outlined
in Attachment 2-3 of the QAP. The dedicated pump is used to collect parameters and to collect
the samples as described below. If the well does not have a dedicated pump, a Grundfos pump
(9 -10 gpm pump) is then lowered to the screened interval in the well and purging is started.
4
The purge rate is measured for the well by using a calibrated 5 gallon bucket. This purging
process is repeated at each well location moving from least contaminated to the most
contaminated well. All wells are capped and secured prior to leaving the sampling location.
Wells with dedicated pumps are sampled when the pump is in the pumping mode. If the pump is
not pumping at the time of sampling, it is manually switched on by the Mill Personnel. The well
is pumped for approximately 5 to 10 minutes prior to the collection of the field parameters. Per
the approved QAP, one set of parameters is collected. Samples are collected following the
measurement of one set of field parameters. After sampling, the pump is turned off and allowed
to resume its timed schedule.
2.2.3 Sample Collection
Prior to sampling, a cooler with ice is prepared. The trip blank is also gathered at that time (the
trip blank for these events is provided by the analytical laboratory). Once Mill Personnel arrive
at the well sites, labels are filled out for the various samples to be collected. All personnel
involved with the collection of water and samples are then outfitted with disposable gloves.
Chloroform investigation samples are collected by means of disposable hailers.
Mill personnel use a disposable bailer to sample each well that does not have a dedicated pump.
The bailer is attached to a reel of approximately 150 feet of nylon rope and then lowered into the
well. After coming into contact with the water, the bailer is allowed to sink into the water in
order to fill. Once full, the bailer is reeled up out of the well and the sample bottles are filled as
follows:
• Volatile Organic Compound ("VOC") samples are collected first. This sample consists
of three 40 ml vials provided by the Analytical Laboratory. The VOC sample is not
filtered and is preserved with HCl;
• A sample for nitrate/nitrite is then collected. This sample consists of one 250 ml. bottle
that is provided by the Analytical Laboratory. The nitrate/nitrite sample is not filtered
and is preserved with H2S04;
• A sample for chloride is then collected. This sample consists of one 500 ml. bottle that is
provided by the Analytical Laboratory. The chloride sample is not filtered and is not
chemically preserved.
After the samples have been collected for a particular well, the bailer is disposed of and the
samples are placed into the cooler that contains ice. The well is then recapped and Mill personnel
proceed to the next well.
2.3 Field Data
Attached under Tab B are copies of the Field Data Worksheets that were completed during the
quarter for the chloroform contaminant investigation monitoring wells identified in paragraph
2.1.1 above, and Table 1.
5
2.4 Depth to Groundwater Data and Water Table Contour Map
Attached under Tab C are copies of the Depth to Water Sheets for the weekly monitoring of
MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-22, TW4-24, TW4-
25, TW4-37, TW4-39, TW4-40, TW4-41 and TWN-2 as well as the monthly depth to
groundwater data for the chloroform contaminant investigation wells and the non-pumped wells
measured during the quarter. Depth to groundwater measurements that were utilized for
groundwater contours are included on the Quarterly Depth to Water Worksheet at Tab D of this
report, along with the kriged groundwater contour map for the current quarter generated from
this data. A copy of the kriged groundwater contour map generated from the previous quarter's
data is provided under Tab E.
2.5 Laboratory Results
2.5.1 Copy of Laboratory Results
All analytical results were provided by Chemtech-Ford Analytical Laboratory ("CTF"). Table 1
lists the dates when analytical results were reported to the Director, Regulatory Compliance for
each sample.
Results from the analyses of samples collected for this quarter's chloroform contaminant
investigation are provided under Tab Hof this Report. Also included under Tab Hare the results
of the analyses for duplicate samples, the DIFB, and rinsate samples for this sampling effort, as
identified in Table 1, as well as results for trip blank analyses required by the Chloroform QAP.
2.5.2 Regulatory Framework
As discussed in Section 1.0, above, the SCO triggered a series of actions on EFRI's part. In
addition to the monitoring program, EFRI has equipped one nitrate well and fifteen chloroform
wells with pumps to recover impacted groundwater, and has initiated recovery of chloroform
from the perched zone.
Sections 4 and 5, below, interpret the groundwater level and flow information, contaminant
analytical results, and pump test data to assess effectiveness of EFRI's chloroform capture
program.
3.0 QUALITY ASSURANCE AND DATA VALIDATION
The Director, Regulatory Compliance performed a QA/Quality Control ("QC") review to
confirm compliance of the monitoring program with requirements of the QAP. As required in the
QAP, data QA includes preparation and analysis of QC samples in the field, review of field
procedures, an analyte completeness review, and QC review of laboratory methods and data.
Identification of field QC samples collected and analyzed is provided in Section 3 .1. Discussion
of adherence to Mill sampling Standard Operating Procedures ("SOPs") is provided in Section
3.2. Analytical completeness review results are provided in Section 3.3. The steps and tests
applied to check laboratory data QA/QC are discussed in Sections 3.4.4 through 3.4.9 below.
6
The analytical laboratory has provided summary reports of the analytical QA/QC measurements
necessary to maintain conformance with National Environmental Laboratory Accreditation
Conference ("NELAC") certification and reporting protocol. The Analytical Laboratory QA/QC
Summary Reports, including copies of the Mill's Chain of Custody and Analytical Request
Record forms for each set of Analytical Results, follow the analytical results under Tab H.
Results of the review of the laboratory QA/QC information are provided under Tab I and are
discussed in Section 3.4, below.
3.1 Field QC Samples
The following QC samples were generated by Mill personnel and submitted to the analytical
laboratory in order to assess the quality of data resulting from the field sampling program.
Field QC samples for the chloroform investigation program consist of one field duplicate sample
for each 20 samples, a trip blank for each shipped cooler that contains VOCs, one DIFB and
rinsate samples.
During this quarter, three duplicate samples were collected as indicated in Table 1. The
duplicates were sent blind to the analytical laboratory and analyzed for the same parameters as
the chloroform wells.
Three trip blanks were provided by CTF and returned with the quarterly chloroform monitoring
samples.
Two rinsate blank samples were collected as indicated on Table 1. Rinsate samples were labeled
with the name of the subsequently purged well with a terminal letter "R" added (e.g. TW4-7R).
The results of these analyses are included with the routine analyses under Tab H.
In addition, one DIFB, while not required by the Chloroform QAP, was collected and analyzed
for the same constituents as the well samples and rinsate blank samples.
3.2 Adherence to Mill Sampling SOPs
The Director, Regulatory Compliance's review of Mill Personnel's adherence to the existing
SOPs, confirmed that the QA/QC requirements established in the QAP and Chloroform QAP
were met.
3.3 Analyte Completeness Review
All analyses required by the GCAP for chloroform monitoring for the period were performed.
3.4 Data Validation
The QAP and GWDP identify the data validation steps and data QC checks required for the
chloroform monitoring program. Consistent with these requirements, the Director, Regulatory
Compliance performed the following evaluations: a field data QA/QC evaluation, a holding time
7
check, a receipt temperature check, an analytical method check, a reporting limit evaluation, a
trip blank check, a QA/QC evaluation of sample duplicates, a QC Control Limit check for
analyses and blanks including the DIFB and a rinsate sample check. Each evaluation is discussed
in the following sections. Data check tables indicating the results of each test are provided under
Tab I.
3.4.1 Field Data QA/QC Evaluation
The Director, Regulatory Compliance performs a review of the field recorded parameters to
assess their adherence with QAP requirements. The assessment involved review of two sources
of information: the Field Data Sheets and the Quarterly Depth to Water summary sheet. Review
of the Field Data Sheets addresses well purging volumes and measurement of field parameters
based on the requirements discussed in section 2.2.1 above. The purging technique employed
determines the requirements for field parameter measurement and whether stability criteria are
applied. Review of the Depth to Water data confirms that all depth measurements used for
development of the groundwater contour maps were conducted within a five-day period as
indicated by the measurement dates in the summary sheet under Tab D. The results of this
quarter's review of field data are provided under Tab I.
Based upon the review of the field data sheets, the purging and field measurements were
completed in conformance with the QAP requirements. A summary of the purging techniques
employed and field measurements taken is described below:
Purging Two Casing Volumes with Stable Field Parameters (within 10% RPD)
Wells TW4-5, TW4-8, TW4-9, TW4-16, MW-32, TW4-18, TW4-23, TW4-32, and TW4-38
were sampled after two casing volumes were removed. Field parameters (pH, specific
conductivity, turbidity, water temperature, DO, and redox potential) were measured during
purging. All field parameters for this requirement were stable within 10% RPD.
Purging a Well to Dryness and Stability of a Limited List of Field Parameters
Wells TW4-3, TW4-6, TW4-7, TW4-10, TW4-12, TW4-13, TW4-14, TW4-26, TW4-27, TW4-
28, TW4-29, TW4-30, TW4-31, TW4-33, TW4-34, TW4-35, TW4-36, TW4-42, and TW4-43
were pumped to dryness before two casing volumes were evacuated. After well recovery, one set
of measurements of pH, conductivity and temperature were taken. The samples were then
collected, and another set of measurements of pH, conductivity and temperature were taken.
Stabilization of pH, conductivity and temperature are required within 10% RPD under the QAP.
The QAP requirements for stabilization were met.
Continuously Pumped Wells
Wells MW-4, TW4-1, TW4-2, TW4-4, TW4-11, MW-26, TW4-19, TW4-21, TW4-22, TW4-24,
TW4-25, TW4-37, TW4-39, TW4-40, and TW4-41 are continuously pumped wells. These wells
are pumped on a set schedule per the remediation plan and are considered sufficiently evacuated
to immediately collect a sample.
During review of the field data sheets, the Director, Regulatory Compliance confirmed that
sampling personnel consistently recorded depth to water to the nearest 0.01 foot.
8
The review of the field sheets for compliance with QAP requirements resulted in the
observations noted below. The QAP requirements in Attachment 2-3 specifically state that field
parameters must be stabilized to within 10% over at least 2 consecutive measurements for wells
purged to 2 casing volumes or purged to dryness. The QAP Attachment 2-3 states that turbidity
should be less than 5 NTU prior to sampling unless the well is characterized by water that has a
higher turbidity. The QAP Attachment 2-3 does not require that turbidity measurements be less
than 5 NTU prior to sampling. As such, the noted observations below regarding turbidity
measurements greater than 5 NTU are included for information purposes only.
Wells TW4-9, TW4-16, MW-32, TW4-18, TW4-32, and TW4-39 exceeded the QAP's 5 NTU
goal. EFRI's letter to DWMRC of March 26, 2010 discusses further why turbidity does not
appear to be an appropriate parameter for assessing well stabilization. In response to DWMRC's
subsequent correspondence dated June 1, 2010 and June 24, 2010, EFRI completed a monitoring
well redevelopment program. The redevelopment report was submitted to DWMRC on
September 30, 2011. DWMRC responded to the redevelopment report via letter on November
15, 2012. Per the DWMRC letter dated November 15, 2012, the field data generated this quarter
are compliant with the turbidity requirements of the approved QAP.
3.4.2 Holding Time Evaluation
QAP Table 1 identifies the method holding times for each suite of parameters. Sample holding
time checks are provided in Tab I. The samples were received and analyzed within the required
holding times.
3.4.3 Receipt Temperature Evaluation
Chain of Custody sheets were reviewed to confirm compliance with the QAP requirement which
specifies that samples be received at 6°C or lower. Sample temperatures checks are provided in
Tab I. The samples were received within the required temperature limit.
3.4.4 Analytical Method Checklist
The analytical methods reported by the laboratory were checked against the required methods
enumerated in the Chloroform QAP. Analytical method checks are provided in Tab I. The
analytical methods were consistent with the requirements of the Chloroform QAP.
3.4.5 Reporting Limit Evaluation
The analytical method reporting limits reported by the laboratory were checked against the
reporting limits enumerated in the Chloroform QAP. Reporting Limit Checks are provided
under Tab I. The analytes were measured and reported to the required reporting limits; several
sets of sample results had the reporting limit raised for at least one analyte due to matrix
interference and/or sample dilution. In these cases, the reported value for the analyte was higher
than the increased detection limit.
9
3.4.6 Receipt pH Evaluation
Appendix A of the QAP states that volatile samples are required to be preserved and arrive at the
laboratory with a pH less than 2. A review of the laboratory data revealed that the volatile
samples were received at the laboratory with a pH less than 2.
3.4. 7 Trip Blank Evaluation
Trip blank results were reviewed to identify any VOC contamination resulting from transport of
the samples. Trip blank checks are provided in Tab I. All of the trip blank samples were
nondetect.
3.4.8 QA/QC Evaluation for Sample Duplicates
Section 9.1.4 a) of the QAP states that RPDs will be calculated for the comparison of duplicate
and original field samples. The QAP acceptance limits for RPDs between the duplicate and
original field sample is less than or equal to 20% unless the measured results are less than 5
times the required detection limit. This standard is based on the EPA Contract Laboratory
Program National Functional Guidelines for Inorganic Data Review, February 1994, 9240.1-05-
01 as cited in the QAP. The RPDs are calculated for the duplicate pairs for all analytes
regardless of whether or not the reported concentrations are greater than 5 times the required
detection limits; however, data are considered noncompliant only when the results are greater
than 5 times the reported detection limit and the RPD is greater than 20%. The additional
duplicate information is provided for information purposes.
The duplicate results were within a 20% RPD in the samples except for nitrate in TW4-12/.TW4-
65 and chloride in duplicate pair TW4-09/TW4-70. The approved QAP specifies a separate
corrective action for duplicate RPDs outside of acceptance limits. The revised procedure for
duplicate results outside of acceptance limits was implemented for the results outside of the
acceptance limits. The corrective actions that were taken in accordance with the QAP procedure
are as follows: the Director, Regulatory Compliance contacted the Analytical Laboratory and
requested a review of the raw data to assure that there were no transcription errors and the data
were accurately reported. The laboratory noted that the data were accurate and reported
correctly. Reanalysis was not completed as the samples were out of holding time. Duplicate
results are included in Tab I.
3.4.9 Rinsate Sample Check
Rinsate blank sample checks are provided in Tab I. The rinsate blank sample concentration
levels were compared to the QAP requirements i.e., that rinsate sample concentrations be one
order of magnitude lower than that of the actual well.
Rinsate blank sample TW4-03R was nondetect for chloroform. Rinsate blank sample TW4-33R
had a reported detection of 2.2 ug/L for chloroform. Sample TW4-33 had a reported chloroform
concentration of 50.5 ug/L which is more than one order of magnitude greater than the associated
rinsate blank. The rinsate blank results for TW4-33R were within acceptance limits for the
rinsate blank results.
10
Prior to the Q4 2022 sampling event EFRI serviced the DI water system and all filters and media
were changed. The DI blank from the on-site DI system which generates the water for rinsate
blank samples was nondetect but has had reported concentrations in recent quarters. EFRI is
continuing the investigation of the chloroform in the DI samples. The results of this investigation
will be provided in future reports. EFRI is contacting the media and filter provider again and
looking at plumbing systems to determine if the chloroform is originating within the physical
system.
The data for all samples are usable as reported. Even if there were contribution of chloroform to
the sample results, it would bias the data high and would result in a more conservative data
application. EFRI does not believe the data quality has been affected.
3.4.10 Other Laboratory QA/QC
Section 9.2 of the QAP requires that the laboratory's QA/QC Manager check the following items
in developing data reports: (1) sample preparation information is correct and complete, (2)
analysis information is correct and complete, (3) appropriate analytical laboratory procedures are
followed, (4) analytical results are correct and complete, (5) QC samples are within established
control limits, (6) blanks are within QC limits, (7) special sample preparation and analytical
requirements have been met, and (8) documentation is complete. In addition to other laboratory
checks described above, EFRI's Director, Regulatory Compliance rechecks QC samples and
blanks (items (5) and (6)) to confirm that the percent recovery for spikes and the relative percent
difference for spike duplicates are within the method-specified acceptance limits, or that the case
narrative sufficiently explains any deviation from these limits. Results of this quantitative check
are provided in Tab I.
The lab QA/QC results met these specified acceptance limits except as noted below.
The QAP, Section 8.1.2 states that an MS/MSD pair may be analyzed with each analytical batch
depending on the analytical method specifications. The QAP does not specify acceptance limits
for the MS/MSD pair, and the QAP does not specify that the MS/MSD pair be prepared on EFRI
samples only. Acceptance limits for MS/MSDs are set by the laboratories. The review of the
information provided by the laboratories in the data packages verified that the specifications in
the analytical methods to analyze either an MS or MS/MSD pair with each analytical batch were
met as applicable to each method. While the QAP does not require it, the recoveries were
reviewed for compliance with the laboratory established acceptance limits. The QAP does not
require this level of review and the results of this review are provided for information only.
The information from the Laboratory QA/QC Summary Reports indicates that the MS/MSDs
recoveries and the associated RPDs for the samples were within acceptable laboratory limits
except as indicated in Tab I. The data recoveries and RPDs which are outside the laboratory
established acceptance limits do not affect the quality or usability of the data because the
recoveries and RPDs above or below the acceptance limits are indicative of matrix interference
most likely caused by other constituents in the samples. Matrix interferences are applicable to
the individual sample results only. The specifications in the analytical methods to analyze a
11
MS/MSD pair with each analytical batch (as applicable to the methods) was met and as such the
data are compliant with the QAP
The QAP specifies that surrogate compounds shall be employed for all organic analyses, but the
QAP does not specify acceptance limits for surrogate recoveries. The analytical data associated
with the routine quarterly sampling met the requirement specified in the QAP. The information
from the Laboratory QA/QC Summary Reports indicates that the surrogate recoveries for the
quarterly chloroform samples were within acceptable laboratory limits for the surrogate
compounds. The requirement in the QAP to analyze surrogate compounds was met and the data
are compliant with the QAP. Furthermore, there are no QAP requirements for surrogate
recoveries.
The QAP, Section 8.1.2 requires that each analytical batch shall be accompanied by a method
blank. The analytical batches routinely contain a blank, which is a blank sample made and
carried through all analytical steps. For the Mill samples, a method blank was prepared for the
analytical methods. Per the approved QAP, contamination detected in analysis of method blanks
will be used to evaluate any analytical laboratory contamination of environmental samples. The
QAP states that non-conformance conditions will exist when contaminant levels in the
samples(s) are not an order of magnitude greater than the blank result. There were no detections
in the method blanks in this quarter. Method blank results are included in Tab I.
The information from the Laboratory QA/QC Summary Reports indicates that there were low
LCS recoveries in three analytical batches as indicated in Tab I.
A low LCS recovery for carbon tetrachloride and chloromethane were reported in analytical
batch 22L0202. The low LCS in batch 22L0202 affected sample TW4-60. A low LCS recovery
for carbon tetrachloride was reported in analytical batch 22L0766. The low LCS in batch
22L0766 affected all of the samples in the batch. A low LCS recovery for chloromethane was
reported in analytical batch 22L 1102. The low LCS in batch 22L 1102 affected all of the samples
in the batch.
The data were flagged in accordance with EPA Method 8260. The data are usable for the
intended purpose because carbon tetrachloride and chloromethane are not frequently detected.
Further, the wells listed above do not have recent historical detections of chloromethane and the
nondetect data are likely accurate.
4.0 INTERPRETATION OF DATA
4.1 Interpretation of Groundwater Levels, Gradients and Flow Directions.
4.1.1 Current Site Groundwater Contour Map
The water level contour maps (See Tab D) indicate that perched water flow ranges from
generally southwesterly beneath the Mill site and tailings cells to generally southerly along the
eastern and western margins of White Mesa south of the tailings management system.
12
Perched water mounding associated with the wildlife ponds locally changes the generally
southerly perched water flow patterns. For example, northeast of the Mill site, mounding
associated with formerly used wildlife ponds is still evident and disrupts the generally
southwesterly flow pattern, to the extent that locally northwesterly flow occurs near MW-19 and
PIEZ-1. The impact of the mounding associated with the northern ponds, to which water has not
been delivered since March 2012, is diminishing and is expected to continue to diminish as the
associated mound decays due to reduced recharge. The perched groundwater mound associated
with the southern wildlife pond is also diminishing due to reduced recharge at that location.
Not only has recharge from the wildlife ponds impacted perched water elevations and flow
directions at the site, but the cessation of water delivery to the northern ponds, which are
generally upgradient of the nitrate and chloroform plumes at the site, resulted in changing
conditions that were expected to impact constituent concentrations and migration rates within the
plumes. Specifically, past recharge from the northern ponds helped limit many constituent
concentrations within the plumes by dilution while the associated groundwater mounding
increased hydraulic gradients and contributed to plume migration. Since use of the northern
ponds was discontinued in March 2012, increases in constituent concentrations in many wells,
and decreases in hydraulic gradients within the plumes, are attributable to reduced recharge and
the decay of the associated groundwater mound. EFRI and its consultants anticipated these
changes and discussed these and other potential effects with DWMRC in March 2012 and May
2013.
The impacts associated with cessation of water delivery to the northern ponds were expected to
propagate downgradient (south and southwest) over time. Wells close to the ponds were
generally expected to be impacted sooner than wells farther downgradient of the ponds.
Therefore, constituent concentrations were generally expected to increase in downgradient wells
close to the ponds before increases were detected in wells farther downgradient of the ponds.
Although such increases were anticipated to result from reduced dilution, the magnitude and
timing of the increases were anticipated to be, and have been, difficult to predict due to the
complex permeability distribution at the site and factors such as pumping and the rate of decay of
the groundwater mound. Because of these complicating factors, some wells completed in higher
permeability materials were expected to be impacted sooner than other wells completed in lower
permeability materials even though the wells completed in lower permeability materials were
closer to the ponds.
In general, chloroform and nitrate concentrations within and in the vicinity of the chloroform
plume appear to have been impacted to a greater extent than nitrate concentrations within and
adjacent to the nitrate plume. This behavior is reasonable considering that the chloroform plume
is generally more directly downgradient of and more hydraulically connected (via higher
permeability materials) to the northern wildlife ponds.
In addition, the southern wildlife pond is in relatively close proximity to the downgradient
(southern) extremity of the chloroform plume. Reduced recharge at the southern pond, and decay
of the associated groundwater mound, can be expected to impact water level behavior and
chloroform and nitrate concentrations in wells within this portion of the chloroform plume.
13
Localized increases in concentrations of constituents such as chloroform and nitrate within and
near the chloroform plume, and of nitrate and chloride within and near the nitrate plume, may
occur even when these plumes are under control. Ongoing mechanisms that can be expected to
increase constituent concentrations locally as a result of reduced wildlife pond recharge include
but are not limited to:
1) Reduced dilution -the m1xmg of low constituent concentration pond recharge into
existing perched groundwater will be reduced over time.
2) Reduced saturated thicknesses -dewatering of higher permeability layers rece1vmg
primarily low constituent concentration pond water will result in wells intercepting these
layers receiving a smaller proportion of the low constituent concentration water.
The combined impact of the above two mechanisms was anticipated to be more evident at
chloroform pumping wells MW-4, MW-26, TW4-4, TW4-19, and TW4-20 (now abandoned);
nitrate pumping wells TW4-22, TW4-24, TW4-25, and TWN-2; and non-pumped wells adjacent
to the pumped wells. Impacts were also expected to occur over time at wells subsequently added
to the chloroform pumping network: TW4-l, TW4-2, TW4-ll, TW4-21 and TW4-37 (added
during 2015); TW4-39 (added during the fourth quarter of 2016); TW4-41 (added during the
second quarter of 2018); and TW4-40 (added during the second quarter of 2019). The overall
impact was expected to be generally higher constituent concentrations in these wells over time
until mass reduction resulting from pumping and natural attenuation eventually reduces
concentrations. Short-term changes in concentrations at pumping wells and wells adjacent to
pumping wells are also expected to result from changes in pumping conditions.
In addition to changes in the flow regime caused by wildlife pond recharge, perched flow
directions are locally influenced by operation of the chloroform and nitrate pumping wells. Well
defined cones of depression were typically evident in the vicinity of all chloroform pumping
wells except TW4-4 and TW4-37, which began pumping in the first quarter of 2010 and the
second quarter of 2015, respectively. The third quarter of 2018 was the first quarter that a well-
defined cone of depression was associated with TW 4-4, primarily the result of pumping at
adjacent well TW4-41.
The lack of well-defined capture associated with chloroform pumping well TW4-4 was
consistent prior to the third quarter of 2018, even though pumping since the first quarter of 2010
has depressed the water table in the vicinity of this well. The lack of a well-defined cone of
depression near TW 4-4 likely resulted from 1) variable permeability conditions in the vicinity of
TW4-4, and 2) historical relatively low water levels at adjacent well TW4-14.
Nitrate pumping wells TW4-22, TW4-24, TW4-25, and TWN-2 started pumping during the first
quarter of 2013. By the fourth quarter of 2013, operation of the nitrate pumping system had
produced well-defined impacts on water levels. Water level impacts of the nitrate and chloroform
pumping systems overlap; however the long-term interaction between the nitrate and chloroform
pumping systems is evolving, and changes will be reflected in data collected during routine
monitoring.
14
Water level patterns near nitrate pumping wells are expected to be influenced by the presence of,
and the decay of, the groundwater mound associated with the northern wildlife ponds, and by the
historically relatively low water level at TWN-7. Since 2012, water levels in TWN-7 have risen
while water levels in nearby wells have generally dropped due to pumping and the decay of the
northern groundwater mound. These factors have reduced water level differences between TWN-
7 and nearby wells.
As discussed above, variable permeability conditions likely contributed to the lack of a well-
defined cone of depression near chloroform pumping well TW4-4. Changes in water levels at
wells immediately south and southeast (downgradient) ofTW4-4 resulting from TW4-4 pumping
were expected to be muted because TW4-4 is located at a transition from relatively high to
relatively low permeability conditions south and southeast of TW4-4. As will be discussed
below, the permeability of the perched zone at TW4-6, TW4-26, TW4-29, TW4-30, TW4-31,
TW4-33, TW4-34, and TW4-35 is one to two orders of magnitude lower than at TW4-4, and the
permeability at TW4-27 is approximately three orders of magnitude lower than at TW4-4.
Detecting water level drawdowns in wells immediately south and southeast of TW 4-4 resulting
from TW4-4 pumping has also been complicated by a former, long-term increase in water levels
in this area that has been attributable to past wildlife pond recharge. Between the fourth quarter
of 2007 and the fourth quarter of 2009 (just prior to the start of TW4-4 pumping), water levels at
TW4-4 and TW4-6 increased by nearly 2.7 and 2.9 feet at rates of approximately 1.2 feet/year
and 1.3 feet/year, respectively. However, between the start of pumping at TW4-4 (first quarter of
2010) and the fourth quarter of 2013, the rate of increase in water levels at TW4-6 was reduced
to less than 0.5 feet/year suggesting that TW4-6 is within the hydraulic influence of TW4-4.
Water levels in wells currently within the chloroform plume south of TW4-4 (TW4-26, TW4-29
and TW4-40) are generally decreasing to stable. Note that water levels at TW4-30, which was
incorporated within the plume from the fourth quarter of 2020 through the second quarter of
2022, have been decreasing since 2020. Generally decreasing to stable water levels are evident at
TW4-26 and TW4-29 since the fourth quarter of 2013; and at TW4-40 since installation in the
first quarter of 2018. The water level in TW4-6 (remaining outside the plume again this quarter)
has also trended generally downward since the fourth quarter of 2013; likewise the water level at
TW4-33 (outside the plume since the first quarter of 2021) has trended downward since 2013.
These generally downward trends are attributable to both the cessation of water delivery to the
wildlife ponds and pumping. Although water levels at some of the wells marginal to the
chloroform plume such as TW4-14, TW4-27 and TW4-31 were generally increasing until about
the first quarter of 2018, these water levels now appear to be relatively stable to decreasing.
Water level trends at TW4-30 have been similar to those at TW4-27.
These spatially variable water level trends likely result from pumping conditions, the
permeability distribution, and distance from the wildlife ponds. Wells that are relatively
hydraulically isolated ( due to completion in lower permeability materials or due to intervening
lower permeability materials) and that are more distant from pumping wells and the wildlife
ponds, are expected to respond more slowly to pumping and reduced recharge than wells that are
less hydraulically isolated and are closer to pumping wells and the wildlife ponds. Wells that are
more hydraulically isolated will also respond more slowly to changes in pumping.
15
The previous lack of a well-defined cone of depression associated with TW4-4 was also
influenced by the historically relatively low water level at non-pumping well TW4-14, located
east of TW 4-4 and TW 4-6. Prior to 2018, although water level differences among these three
wells had diminished, and TW 4-4 has been pumping since 2010, the water level at TW 4-14 was
typically lower than the water level at TW 4-6 and lower to an even greater extent than the water
level at TW4-4. However, since the first quarter of 2018, as a result of pumping at TW4-
41(adjacent to TW4-4), and declining water levels at TW4-6, the water level at TW4-14 was
typically higher than the water levels at both TW 4-4 and TW 4-6. During the current quarter the
water level at TW4-14 (approximately 5535.3 feet above mean sea level ["ft amsl"]) is more than
6 feet higher than the water level at TW4-6 (approximately 5528.6 ft amsl), and is more than 4
feet higher than the water level at TW4-4 (approximately 5530.9 ft. amsl).
The static water levels at wells TW4-14 and downgradient well TW4-27 (installed south of
TW4-14 in the fourth quarter of 2011) were similar (within 1 to 2 feet) until the third quarter of
2014; both appeared anomalously low. TW4-27 was positioned at a location considered likely to
detect any chloroform present and/or to bound the chloroform plume to the southeast and east
(respectively) of TW4-4 and TW4-6. As will be discussed below, groundwater data collected
since installation indicates that TW4-27 does indeed bound the chloroform plume to the
southeast and east of TW4-4 and TW4-6 (respectively); however, chloroform exceeding 70 µg/L
has been detected at more recently installed temporary perched wells TW4-29 (located south of
TW4-27) and TW4-33 (located between TW4-4 and TW4-29).
Prior to the installation of TW4-27, the persistently low water level at TW4-14 was considered
anomalous because it appeared to be downgradient of all three wells TW4-4, TW4-6, and TW4-
26, yet chloroform had not been detected at TW4-14. Chloroform had apparently migrated from
TW4-4 to TW4-6 and from TW4-6 to TW4-26. This suggested that TW4-26 was actually
downgradient of TW 4-6, and TW 4-6 was actually downgradient of TW 4-4, regardless of the
flow direction implied by the relatively low water level at TW4-14. The water level at TW4-26
(5526.6 feet amsl) is, however, lower than water levels at adjacent wells TW4-6 (5528.6 feet
amsl) and TW4-23 (5530.6 feet amsl), as shown in the detail water level map under Tab D.
Hydraulic tests indicate that the permeability at TW4-27 is an order of magnitude lower than at
TW4-6 and three orders of magnitude lower than at TW4-4 (see Hydro Geo Chem, Inc. [HGC],
September 20, 2010: Hydraulic Testing of TW4-4, TW4-6, and TW4-26, White Mesa Uranium
Mill, July 2010; and HGC, November 28, 2011: Installation, Hydraulic Testing, and Perched
Zone Hydrogeology of Perched Monitoring Well TW4-27, White Mesa Uranium Mill Near
Blanding, Utah). Past similarity of water levels at TW4-14 and TW4-27, and the low
permeability estimate at TW4-27, suggested that both wells were completed in materials having
lower permeability than nearby wells. The low permeability condition likely reduced the rate of
long-term water level increase at TW4-14 and TW4-27 compared to nearby wells, yielding water
levels that appeared anomalously low. This behavior is consistent with hydraulic test data
collected from more recently installed wells TW4-29, TW4-30, TW4-31, TW4-33, TW4-34 and
TW4-35, which indicate that the permeability of these wells is one to two orders of magnitude
higher than the permeability of TW4-27 (see: HGC, January 23, 2014, Contamination
Investigation Report, TW4-12 and TW4-27 Areas, White Mesa Uranium Mill Near Blanding,
Utah; and HGC, July 1, 2014, Installation and Hydraulic Testing of TW4-35 and TW4-36,
16
I '
White Mesa Uranium Mill Near Blanding, Utah [As-Built Report]). Hydraulic tests also indicate
that the permeability at TW4-36 is slightly higher than but comparable to the low permeability at
TW4-27, suggesting that TW4-36, TW4-14 and TW4-27 are completed in a continuous low
permeability zone.
The current quarterly water level at TW4-27 (5528.5 ft. amsl) is more than 6 feet lower than the
water level at TW4-14 (5535.3 ft. amsl). Increases in water level differences between TW4-14
and TW4-27 since 2013 are attributable to more rapid increases in water levels at TW4-14
compared to TW4-27. This behavior likely results primarily from: the relative positions of the
wells; past water delivery to the northern wildlife ponds; and the permeability distribution. Past
seepage from the ponds caused propagation of water level increases in all directions including
downgradient to the south. The relative hydraulic isolation of TW4-14 and TW4-27 delayed
responses at these locations. Until pumping started at TW 4-41, water levels at both these wells
were consistently lower than in surrounding higher permeability materials even though water
levels in surrounding materials were generally decreasing due to reduced pond seepage and
pumping. Although water levels at TW4-14 and TW4-27 appear to have stabilized, the previous
rate of increase was higher at TW 4-14 due to factors that include: closer proximity to the
northern pond seepage source; and a smaller thickness of low permeability materials separating
TW 4-14 from surrounding higher permeability materials. In addition, hydraulic gradients
between TW 4-14 and surrounding higher permeability materials were relatively large and were
consistently directed toward TW 4-14 prior to TW 4-41 pumping. Slowing of the rates of water
level increase at TW4-14 (since 2015) and TW4-27 (since early 2014), and relative stabilization
since about the first quarter of 2018, are attributable to changes in hydraulic gradients between
these wells and surrounding higher permeability materials.
In addition, water levels in this area are affected by reduced recharge at the southern wildlife
pond and the decay of the associated groundwater mound. The decay of the mound is expected to
contribute to changes in hydraulic gradients between the low permeability materials penetrated
by TW4-14 and TW4-27 and the surrounding higher permeability materials. Because TW4-27 is
closer to the southern wildlife pond than TW4-14, changes in hydraulic gradients attributable to
decay of the southern groundwater mound are expected to impact TW4-27 sooner and to a
greater extent than TW4-14, consistent with the lower rate of increase in water levels at TW4-27,
and the earlier reduction in the rate of increase (since early 2014) as discussed above).
The low permeability at TW4-14 and TW4-27 is expected to retard the transport of chloroform
to these wells (compared to nearby wells). As will be discussed in Section 4.2.3, TW4-14 and
TW4-27 remain outside the plume with current quarter chloroform concentrations of less than 1
µg/L and 2.3 µg/L, respectively.
Chloroform exceeding 70 µg/L detected at TW4-29 and TW4-33 since their installation in 2013
indicates that, in addition to migrating south from TW4-4 to TW4-6 and TW4-26, chloroform
also migrated along a relatively narrow path to the southeast from the vicinity of TW4-4 to TW4-
33 then TW4-29. Such migration was in a direction nearly cross-gradient with respect to the
direction of groundwater flow implied by the historic groundwater elevations in this area, which,
until about 2014, placed TW4-14 almost directly downgradient of TW4-4. Such migration was
historically possible because the water levels at TW4-29 were lower than the water levels at
17
TW4-4 (and TW4-6). The permeability and historic water level distributions are generally
consistent with the apparent nearly cross-gradient migration of chloroform from TW 4-4 around
the low permeability zone defined by TW4-36, TW4-14, and TW4-27.
Chloroform at TW4-30 exceeded 70 µg/L for the first time during the fourth quarter of 2020;
dropped below 70 µg/L last quarter; and was detected at approximately 61 µg/L this quarter.
Consequently, TW4-30 again bounds the plume immediately to the east. Chloroform was not
detected at relatively recently installed bounding well TW4-43 (located east-southeast of TW4-
30); nor at wells TW4-3 l (located east of TW4-27), TW4-34 (located south and cross-to
downgradient of TW4-29), or TW4-35 (located southeast and generally downgradient of TW4-
29). Although last quarter chloroform was detected for the first time at TW4-34 (located south
and cross-to downgradient of TW4-29) at a concentration of 1.2 µg/L, chloroform was not
detected at TW4-34 this quarter.
Data from wells within and adjacent to the southern portion of the chloroform plume indicate
that:
1. Chloroform exceeding 70 µg/L at TW4-29 is bounded by concentrations below 70 µg/L at
wells TW4-6, TW4-23, TW4-27, TW4-33, TW4-34, TW4-35 and TW4-42; and, as
discussed above, TW4-30 (with a concentration this quarter of approximately 61 µg/L)
again bounds the plume immediately to the east.. Although previously downgradient of
TW4-29, due to long-term changes in water levels, TW4-30 is now generally cross-
gradient of TW4-29. TW4-6, TW4-23, TW4-27 and TW4-33 are generally cross-to
upgradient of TW4-29; TW4-34 and TW4-35 are generally cross-to downgradient of
TW4-29; TW4-42 is generally cross-to downgradient of TW4-29; and TW4-43 is
generally cross-to downgradient of TW4-30.
2. Chloroform concentrations at TW4-33 that are lower than concentrations at TW4-29, and
the likelihood that a pathway exists from TW4-4 to TW4-33 to TW4-29, suggest that
concentrations in the vicinity of TW4-33 were likely higher prior to initiation of TW4-4
pumping, and that lower concentrations currently detected at TW4-33 are due to its closer
proximity to TW4-4.
3. Chloroform concentrations at TW4-26 exceeded 70 µg/L for the first time during the
second quarter of 2017. Chloroform at TW4-26 is bounded by concentrations below 70
µg/L at TW4-6 and TW4-23 (located up-to cross-gradient of TW4-26); and at TW4-34
(located generally cross-gradient of TW4-26). Chloroform has not been detected at
TW4-23; and, although detected for the first time at TW4-34 last quarter (at a
concentration of 1.2 µg/L), TW4-34 is again non-detect for chloroform this quarter.
Although chloroform exceeding 70 µg/L was detected at well TW 4-40, installed
approximately 200 feet south of TW4-26 in February, 2018, chloroform has not been
detected at TW4-42, installed approximately 200 feet south of TW4-40 in April, 2019.
TW4-42 is generally downgradient of both TW4-26 and TW4-40 and bounds the
chloroform plume to the south.
TW4-4 pumping, enhanced by operation of adjacent pumping well TW4-41, has been expected
to eventually reduce chloroform at both TW4-29 and TW4-33 by cutting off the source. The
decrease at TW4-33 has been anticipated to be faster than at TW4-29 because TW4-33 is in
18
closer proximity to TW 4-4 pumping. Such behavior would be analogous to the temporary
decreases in chloroform concentrations that occurred at TW4-6 and TW4-26 once TW4-4
pumping began (discussed in Section 4.2.3). Since installation in 2013, concentrations at TW4-
33 have been relatively stable to decreasing (and have generally been decreasing since 2018);
however, from the third quarter of 2014 until the second quarter of 2020, concentrations at TW4-
29 generally increased before subsequently stabilizing and decreasing.
This behavior suggests that chloroform migration has been arrested at TW 4-3 3 by TW 4-4 ( and
TW4-41) pumping and that previously increasing chloroform at TW4-29 resulted from a remnant
of the plume that migrated past TW4-33 and generally toward TW4-30 (which was previously
downgradient of TW4-29). The influence of TW4-4 pumping at the distal end of the plume is
consistent with generally decreasing water levels at both TW4-29 and TW4-33. Pumping at
TW4-41 since the second quarter of 2018 has been expected to help maintain or enhance this
decline.
Decreasing water level trends at TW4-29 and TW4-33 are also consistent with reduced wildlife
pond seepage. The decay of the groundwater mound associated with the southern wildlife pond,
which is 3 to 4 times closer to the southern extremity of the chloroform plume than the northern
ponds, is expected to impact water levels within and adjacent to this portion of the plume.
Reduced wildlife pond seepage, in particular, reduced seepage from the southern wildlife pond,
likely contributes to decreasing water level trends at both wells (since about the fourth quarter of
2013); temporarily increased concentrations at TW4-6 subsequent to the first quarter of 2014;
and increased concentrations at TW4-26 since the third quarter of 2016.
As the groundwater mound associated with the southern pond decays, groundwater flow
directions in the southern extremity of the plume have become more southerly, and plume
migration has turned more to the south. An increasingly southerly direction of plume migration
is consistent with water level changes in this area and increased concentrations at TW4-26.
In addition, generally decreasing concentrations at TW4-6 since the third quarter of 2015, and
generally increased concentrations at TW4-26 since the third quarter of 2016, suggest that TW4-
4 pumping has arrested chloroform migration between TW 4-4 and TW 4-6, and that increased
chloroform at TW4-26 results from a remnant of the plume that continues to migrate south from
TW4-6 to TW4-26. The enhancement of pumping in the vicinity of TW4-4 by the start-up of
TW 4-41 pumping in the second quarter of 2018 has been expected to increase this apparent
separation and to have resulted in concentrations at TW 4-6 dropping below 70 µg/L after the
second quarter of 2018. Furthermore, the initiation of pumping at TW4-40 during the second
quarter of2019 is expected to reduce or prevent chloroform migration to the south ofTW4-40.
Small but detectable chloroform concentrations at TW4-14 (from the fourth quarter of 2014
through the first quarter of 2021; and last quarter) and at TW4-27 (since the third quarter of
2015) suggest ongoing, but slow, downgradient migration of chloroform from the southeastern
extremity of the plume (near TW4-29 and TW4-33) into the low permeability materials
penetrated by TW4-14 and TW4-27. Pumping at TW4-41 is expected to reduce or prevent future
migration of chloroform toward these wells.
19
4.1.2 Comparison of Current Groundwater Contour Maps to Groundwater Contour
Maps for Previous Quarter
The groundwater contour map for the Mill site for the third quarter of 2022, as submitted with
the Chloroform Monitoring Report for the third quarter of 2022, is attached under Tab E. A
comparison of the water table contour maps for the current quarter (fourth quarter of 2022) to the
water table contour maps for the previous quarter (third quarter of 2022) indicates the following:
water level changes at the majority of site wells were small ( < 1 foot); and water level contours
have not changed significantly except in the vicinities of many of the nitrate and chloroform
pumping wells. Overall, total pumping capture is smaller than last quarter.
Drawdown patterns and overall capture associated with pumping of the original chloroform
pumping wells MW-4, MW-26, and TW4-19 have changed as additional groups of wells have
been added to the pumping network. A large expansion in capture occurred within a year of the
initiation of pumping at nitrate pumping wells TW4-22, TW4-24, TW4-25 and TWN-2 in the
first quarter of 2013. Additional large expansions occurred once chloroform pumping wells
TW4-1, TW4-2, TW4-11, TW4-21 and TW4-37 became operational in 2015, and once TW4-39
became operational in the fourth quarter of 2016. Significant expansion of capture to the south
has resulted from pumping of TW4-41 since the second quarter of 2018 and from initiation of
pumping at TW 4-40 during the second quarter of 2019.
The drawdowns at chloroform pumping wells MW-26 and TW4-2 increased by more than 2 feet
this quarter; while drawdowns at chloroform pumping wells TW4-4, TW4-21 and TW4-39; and
nitrate pumping wells TW4-22 and TWN-2 decreased by more than 2 feet this quarter. However,
water level changes at other nitrate and chloroform pumping wells were 2 feet or less, although
both increases (decreases in drawdown) and decreases (increases in drawdown) occurred. Water
level fluctuations at pumping wells typically occur in part because of fluctuations in pumping
conditions just prior to and at the time the measurements are taken. The reported water level for
chloroform pumping well TW4-11 is below the depth of the Brushy Basin contact this quarter.
In addition, last quarter's reported increase in water level ( decrease in drawdown) of nearly 52
feet at chloroform pumping well TW4-2 is considered anomalous and likely due to measurement
error. The current quarter's reported decrease in water level (increase in drawdown) at TW4-2
brings the water level in line with typical historic readings. Although both increases and
decreases in drawdown occurred in pumping wells, the overall apparent capture area of the
combined pumping system is smaller than last quarter.
As discussed in Section 4.1.1, pumping at chloroform well TW4-4, which began in the first
quarter of 2010, depressed the water table near TW4-4, but a well-defined cone of depression
was not clearly evident until the third quarter of 2018, likely due to variable permeability
conditions near TW4-4 and the historically relatively low water level at adjacent well TW4-14.
The expanded cone of depression associated with TW4-4 and adjacent pumping well TW4-41
since the initiation of pumping at TW 4-41 in the second quarter of 2018 has contributed to
southerly expansion of total pumping system capture. As discussed above, southerly expansion
of capture was additionally enhanced in the second quarter of 2019 by the initiation of pumping
at TW4-40.
20
The water levels at Piezometer 3A decreased by 0.8 feet this quarter; the water level at TWN-1
decreased by 0.04 feet; and water levels at Piezometers 4 and 5 decreased by as much as 0.21
feet. These decreases are consistent with cessation of water delivery to the wildlife ponds as
discussed in Section 4.1.1 and the consequent continuing decay of the associated perched water
mounds. However, water levels at Piezometers 1 and 2 increased by as much as 0.97 feet; and
the water level at TWN-4 increased by 0.28 feet.
The reported water level at MW-20 decreased by nearly 3.2 feet. Water level variability at this
well likely results from low permeability and variable intervals between purging/sampling and
water level measurement. The reported water level decrease at MW-20 more than compensates
for the reported increase last quarter.
Measurable water was not reported at DR-22. Although DR-22 is typically dry, measurable
water was reported in the bottom of its casing between the second quarter of 2015 and the third
quarter of 2016. Similar to last quarter, measurable water was also not reported at DR-12 this
quarter.
4.1.3 Hydrographs
Attached under Tab F are hydrographs showing groundwater elevation in each chloroform
contaminant investigation monitor well over time.
4.1.4 Depth to Groundwater Measured and Groundwater Elevation
Attached under Tab F are tables showing depth to groundwater measured and groundwater
elevation over time for each of the wells listed in Section 2.1.1 above.
4.1.5 Evaluation of the Effectiveness of Hydraulic Capture
Perched water containing chloroform has been removed from the subsurface by operating
chloroform pumping wells MW-4, MW-26 and TW4-19 since 2003; TW4-4 since 2010; TW4-1,
TW4-2, TW4-11, TW4-21 and TW4-37 since 2015; TW4-39 since the fourth quarter of 2016;
TW4-41 since the second quarter of 2018; and TW4-40 since the second quarter of 2019. TW4-
20 was also operated as a pumping well from 2005 until August, 2020 when it collapsed and was
subsequently abandoned. The primary purpose of pumping the above wells is to reduce total
chloroform mass in the perched zone as rapidly as is practical.
The original pumping wells upgradient of TW 4-4 were chosen because 1) they were located in
areas of the perched zone having relatively high permeability and saturated thickness, and 2)
high concentrations of chloroform were detected at these locations. The relatively high
transmissivity of the perched zone in the vicinity of these original pumping wells resulted in the
wells having a relatively high productivity. The combination of relatively high productivity and
high chloroform concentrations allowed for a high rate of chloroform mass removal. TW 4-4 and
TW4-41 are located in a downgradient area having relatively high chloroform concentrations but
relatively small saturated thickness, and at a transition from relatively high to relatively low
permeability conditions downgradient of TW4-4. As with the other chloroform pumping wells,
21
pumping TW4-4 and TW4-41 helps to reduce the rate of chloroform migration in downgradient
portions of the plume.
Although pumping of TW4-6 and TW4-26 (located south of TW4-4 and TW4-41) is impractical
due to low permeability and small saturated thicknesses, the permeability in the vicinity of TW 4-
40 (located south of TW4-26) is large enough to make pumping practical. TW4-40 is valuable in
that it is located within the downgradient (southern) toe of the plume and is relatively productive.
Pumping of TW 4-40 is likely to more effectively reduce or prevent further downgradient plume
migration than can be expected by pumping at the more upgradient locations.
The impact of chloroform pumping is indicated by the water level contour maps attached under
Tabs D and E. Cones of depression are evident in the vicinity of MW-4; and near MW-26,
TW4-19, TW4-37 and TW4-39. These wells continue to remove significant quantities of
chloroform from the perched zone. Relatively large cones of depression are also evident in the
vicinities of wells TW4-1 and TW4-2 (near MW-4); and at TW4-1 l. These wells began pumping
during the first quarter of 2015. As discussed in Section 4.1.1, although chloroform pumping
well TW4-4 became operational in 2010, the drawdown associated with TW4-4 was likely less
apparent due to variable permeability conditions near TW 4-4 and the persistently low water level
at adjacent well TW4-14. However, pumping at adjacent well TW4-41 since the second quarter
of 2018 has generally increased drawdowns in this area; the third quarter of 2018 was the first
quarter that a well-defined cone of depression was associated with TW4-4. As discussed in
Section 4.1.2 the combined pumping of TW4-4 and TW4-41, enhanced by initiation of pumping
at TW4-40 during the second quarter of 2019, has contributed to southerly expansion of total
pumping system capture. Overall, the water level contour maps indicate effective capture of
water containing high chloroform concentrations in the vicinities of the pumping wells.
Compared to last quarter, both increases and decreases in water levels occurred at nitrate and
chloroform pumping wells, although changes in water levels in chloroform pumping wells MW-
4, TW4-1, TW4-11, TW4-19, TW4-37, TW4-40 and TW4-41; and nitrate pumping wells TW4-
24 and TW4-25 were less than two feet. Water level decreases occurred in chloroform pumping
wells MW-4 (nearly 0.7 feet): MW-26 (more than 10 feet); TW4-1 (nearly 1.1 feet); TW4-2
(more than 41 feet); TW4-11 (approximately 0.63 feet); TW4-37 (nearly 0.7 feet); TW4-40
(approximately 0.03 feet); and TW4-41 (approximately 0.04 feet); and in nitrate pumping well
TW4-24 (nearly 0.5 feet). Water level increases occurred in chloroform pumping wells TW4-4
(nearly 6 feet); TW4-19 (approximately 1.4 feet); TW4-21 (nearly 3.6 feet); and TW4-39
(approximately 3.2 feet); and in nitrate pumping wells TW4-22 (approximately IO.I feet); TW4-
25 (approximately 0.5 feet); and TWN-2 (approximately 9.4 feet).
As discussed in Section 4.1.2, last quarter's reported increase in water level (decrease in
drawdown) of nearly 52 feet at chloroform pumping well TW4-2 is considered anomalous and
likely due to measurement error. The current quarter's reported decrease in water level (increase
in drawdown) at TW4-2 brings the water level in line with typical historic readings. Overall, the
apparent combined capture .area of the nitrate and chloroform pumping systems is smaller than
last quarter; capture decreased primarily due to decreased drawdowns at nitrate pumping wells
TW4-22 and TWN-2.
22
The capture associated with nitrate pumping wells and chloroform pumping wells added since
the beginning of 2015 is expected to generally increase over time as water levels continue to
decline due to cessation of water delivery to the northern wildlife ponds and continued pumping.
Slow development of hydraulic capture in the vicinities of many wells is consistent with and
expected based on the relatively low permeability of the perched zone at the site.
The hydraulic capture effectiveness of both chloroform and nitrate pumping systems depends to
some extent on the continued productivity of chloroform and nitrate pumping wells. Decreases in
productivity since the third quarter of 2014 have been noted in chloroform pumping well TW4-
19 and nitrate pumping well TW4-24. The impact of reduced productivity of these wells on
chloroform capture was discussed in Attachment N (Tab N) of the third quarter, 2015 report. The
report also included a discussion of the effectiveness of chloroform pumping on chloroform
capture. 'Background' flow through the chloroform plume was calculated in Attachment N as
approximately 3.3 gpm. A more refined 'background' flow calculation of 3.4 gpm was provided
in the CACME Report (See HGC, March 31, 2016: Corrective Action Comprehensive
Monitoring Evaluation Report, White Mesa Uranium Mill, Near Blanding, Utah).
Decreases in productivity at TW4-4 since the third quarter of 2016 have been addressed by the
operation of adjacent pumping well TW4-41 since the second quarter of 2018.
Pumping from wells within and immediately adjacent to the chloroform plume during the current
quarter (from wells MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21,
TW4-22, TW4-24, TW4-37, TW4-39, TW4-40 and TW4-41) is approximately 5 gpm.
The pumping calculation is based on the total volume _pumped by the above wells over the 90
day quarter (648,654 gallons) and accounts for times that the pumps are off due to insufficient
water columns in the wells. Pumping from these wells exceeds the calculated background flow
by 1.6 gpm or 4 7 %, and is considered adequate at the present time even with the reduced
productivities of some wells and the abandonment of TW4-20. In addition, because of continued
reductions in saturated thicknesses and hydraulic gradients resulting from reduced wildlife pond
recharge, 'background' flow through the plume is expected to continue to diminish, thereby
reducing the pumping needed to control the plume.
Chloroform concentrations at many locations have been or appear to be affected by changes
associated with reduced dilution from the wildlife ponds and nitrate pumping. For example,
increases in chloroform at TW4-22 and TW4-24 after these wells were converted to nitrate
pumping wells are attributable to westward migration of chloroform from the vicinity of TW 4-20
(now abandoned) toward these wells. The increase in concentration at TW4-8 from non-detect to
100 µg/L in the first quarter of 2014 is likely related to reduced dilution. The concentration at
TW 4-8 remained below 70 ug/L this quarter after dropping below 70 µg/L during the first
quarter of 2020. In addition, although the chloroform concentration in TW4-6 generally
decreased between the first quarter of 2015 and the current quarter (and remains outside the
plume), concentrations at TW 4-6 increased from approximately 6 µg/L in the first quarter of
2014 to 1,180 µg/L in the first quarter of 2015 before dropping to 1.5 µg/L this quarter. The
increase between the first quarter of 2014 and the first quarter of 2015 was likely related to both
reduced dilution and more westward flow induced by nitrate pumping.
23
TW4-6 is located immediately south and historically cross-to downgradient of chloroform
pumping well TW4-4. TW4-6 has been incorporated into the chloroform plume twice: from the
first quarter of2009 through the third quarter of 2010; and from the third quarter of2014 through
the second quarter of 2018. Pumping of TW4-6 (and TW4-26) is impractical because of
relatively low permeability and relatively small saturated thicknesses. However, pumping at
more productive locations upgradient of TW4-6 (such as TW4-4 and TW4-41) enhances mass
removal and lowers hydraulic gradients, thereby reducing the rate of downgradient chloroform
migration and allowing natural attenuation to be more effective. Pumping at TW 4-4 was
implemented during the first quarter of 2010 to improve capture downgradient of TW 4-4 to the
extent allowable by the lower productivity conditions present in this area.
The beneficial effect of pumping TW 4-4 was demonstrated by the net decreases in TW 4-6
chloroform concentrations from 1,000 µg/L to 10.3 µg/L, and in TW4-26 from 13 µg/L to 4.2
µg/L, between the initiation of TW4-4 pumping and the second quarter of 2014. Concentrations
at these wells decreased substantially even though they did not unambiguously appear to be
within the hydraulic capture of TW4-4. As discussed in Section 4.1.1, however, the decrease in
the long-term rate of water level rise at TW4-6 after TW4-4 began pumping does suggest that
TW4-6 was within the hydraulic influence of TW4-4. The decline in water levels at TW4-6 since
the fourth quarter of 2013 likely reflects the additional influences of cessation of water delivery
to the wildlife ponds and the addition of chloroform pumping wells TW4-1, TW4-2, TW4-11
and TW 4-41. Regardless of whether TW 4-6 was demonstrably within the hydraulic capture of
TW4-4, pumping TW4-4, and more recently installed adjacent pumping well TW4-41, helps to
reduce chloroform migration to TW4-6, TW4-26, and other downgradient locations by the
mechanisms discussed above.
Likewise, pumping at other productive upgradient locations has a beneficial impact on
downgradient chloroform even if the downgradient chloroform is not completely within the
hydraulic capture of the productive upgradient well(s). For example, pumping at MW-26 likely
reduced chloroform concentrations at TW4-16 from a maximum of 530 µg/L in the second
quarter of 2004 to less than 70 µg/L by the fourth quarter of 2005, and maintained concentrations
below 70 µg/L until the second quarter of 2014, even though TW 4-16 appears to be beyond the
hydraulic capture of MW-26. Furthermore, the overall hydraulic capture of the chloroform
pumping system has expanded since initiation of pumping at wells TW4-1, TW4-2, TW4-11
TW 4-21, TW 4-3 7, TW 4-3 9, TW 4-40 and TW 4-41 since the beginning of 2015. In particular, the
addition of wells TW4-1, TW4-2, TW4-11, TW4-21, TW4-37 and TW4-39 likely halted the
mid-2013 to end of 2014 increase in concentration at TW4-16 from non-detect to 387 µg/L.
Concentrations at TW4-16 dropped from 387 µg/L in the fourth quarter of 2014 to less than 70
µg/L by the second quarter of 2015. Although chloroform at TW4-16 has been above and below
70 µg/L since 2014, and was detected at 152 µg/L this quarter, concentrations have generally
increased since 2018, likely in response to reduced dilution.
Chloroform exceeding 70 µg/L was detected in the second quarter of 2013 at TW4-29, installed
during the first quarter of 2013 and located south of TW4-27 and east of TW4-26. With respect
to historic groundwater flow directions implied by historic groundwater elevations in this area,
TW4-29 was positioned generally cross-gradient of TW4-4 and TW4-6. As discussed in Section
24
4.1.1, chloroform detected at TW4-29 may have migrated around the low permeability area
defined by TW4-27, TW4-14 and TW4-36. The apparent migration pathway from TW4-4 to
TW4-29 is consistent with chloroform exceeding 70 µg/L detected in the fourth quarter of 2013
at TW4-33, installed during the third quarter of 2013 and located between TW4-4 and TW4-29.
Chloroform concentrations at TW4-33 that are lower than concentrations at TW4-29, and the
likelihood that a pathway exists from TW4-4 to TW4-33 to TW4-29, suggest that concentrations
in the vicinity ofTW4-33 were likely higher prior to initiation of TW4-4 pumping.
TW4-4 pumping (augmented by pumping at adjacent well TW4-41) has been expected to reduce
chloroform at both TW4-33 and TW4-29 by cutting off the source, with the impact at TW4-33
anticipated to be greater than at TW4-29 because TW4-33 is in closer proximity to TW4-4 (and
TW 4-41) pumping. By analogy, such behavior would be consistent with the decreases m
chloroform concentrations at TW4-6 and TW4-26 that occurred once TW4-4 pumping began.
However, for several quarters after installation, concentrations at both TW4-29 and TW4-33
were relatively stable (rather than decreasing). Between the third quarter of 2014 and the second
quarter of 2020, concentrations at TW4-29 generally increased; subsequently concentrations
stabilized then began to decrease. Over the same time period concentrations at TW4-33 remained
generally stable to decreasing. As discussed in Section 4.1.1, decreasing concentration trends at
both wells were eventually expected to occur. Since the third quarter of 2014, TW4-33
concentrations that have been relatively stable to decreasing; and TW4-29 concentrations that
generally increased before stabilizing then generally decreasing; appear consistent with these
expectations. Trends at these wells suggest that chloroform migration has been arrested at TW 4-
33 by TW4-4 (and TW4-41) pumping and that previously increasing chloroform at TW4-29
resulted from a remnant of the plume that migrated past TW4-33 generally toward TW4-30. The
influence of TW 4-4 pumping at the distal end of the plume is consistent with generally
decreasing water levels at both TW4-29 and TW4-33. However, as discussed in Section 4.1.1,
decreasing water level trends are also consistent with reduced wildlife pond seepage. The decay
of the groundwater mound associated with the southern wildlife pond, which is 3 to 4 times
closer to the southern extremity of the chloroform plume than the northern ponds, is likely to
have an impact on water levels within and adjacent to this portion of the plume.
As discussed in Section 4.1.1, generally decreasing water level trends at TW4-6 and TW4-26
(since about the fourth quarter of 2013), temporarily increased concentrations at TW4-6 (since
the first quarter of 2014) and increased concentrations at TW4-26 (since the third quarter of
2016), are also consistent with reduced wildlife pond seepage, in particular reduced seepage
from the southern wildlife pond. As the groundwater mound associated with the southern pond
decays, groundwater flow directions in the southern extremity of the plume have become more
southerly, and plume migration is turning more to the south. An increasingly southerly direction
of plume migration is consistent with increased concentrations at TW4-26 (from less than 10
µg/L in the third quarter of 2016 to 890 µg/L this quarter).
In addition, as in the area near TW4-29 and TW4-33, generally decreasing concentrations at
TW4-6 since the third quarter of 2015, and generally increased concentrations at TW4-26 since
the third quarter of 2016, suggest that TW 4-4 ( and TW 4-41) pumping has arrested chloroform
migration between TW4-4 and TW4-6, and that increased chloroform at TW4-26 results from a
25
remnant of the plume that continues to migrate south from TW4-6 to TW4-26. The enhancement
of pumping in the vicinity ofTW4-4 by the start-up of TW4-41 pumping in the second quarter of
2018 has been expected to increase this apparent separation and to have resulted m
concentrations at TW4-6 dropping below 70 µg/L beginning in the third quarter of 2018.
Furthermore, small but detectable chloroform concentrations at TW4-14 (from the fourth quarter
of2014 through the first quarter of 2021; and during the previous quarter) and at TW4-27 (since
the third quarter of 2015) suggest ongoing, but slow, downgradient migration of chloroform from
the southeastern extremity of the plume into the low permeability materials penetrated by these
wells. Because the chloroform concentration at TW4-30 dropped below 70 µg/L last quarter,
TW4-30 again bounds the plume to the east ofTW4-29.
Chloroform analytical results from TW4-35 (as discussed in Section 4.2.3) demonstrate that
chloroform is bounded to the southeast of TW4-29; and relatively recently installed well TW4-
43 bounds chloroform to the southeast of TW4-29 and TW4-30. From 2014 through 2019
chloroform concentrations at TW4-8 exceeded 70 µg/L and TW4-36 (non-detect for chloroform)
served as an eastern bounding well. However, since the end of 2019, chloroform at TW4-8
remained below 70 µg/L and continues to bound the chloroform plume to the east.
4.2 Review of Analytical Results
4.2.1 Current Chloroform Isoconcentration Map
Included under Tab J of this Report is a current chloroform isoconcentration map for the Mill
si_te. Details of the gridding procedure used to generate the chloroform isoconcentration map
(consistent with Part 111.B.2.a through Part 111.B.2.c of the GCAP) are provided in Tab L.
4.2.2 Chloroform Concentration Trend Data and Graphs
Attached under Tab K are tables summarizing values for all required parameters, chloride,
nitrate/nitrite, carbon tetrachloride, chloroform, chloromethane, and methylene chloride, for each
well over time.
Attached under Tab Kare graphs showing chloroform concentration trends in each monitor well
over time.
4.2.3 Interpretation of Analytical Data
Comparing the chloroform analytical results to those of the previous quarter, as summarized in
the tables included under Tab K, the following observations can be made:
a) Chloroform concentrations have increased by more than 20% in the following wells
compared to last quarter: MW-26, TW4-2, TW4-19 and TW4-39;
b) Chloroform concentrations decreased by more than 20% in the following wells
compared to last quarter: TW4-5, TW4-6, TW4-8, TW4-9, TW4-21, TW4-22 and TW4-
27;
26
c) Chloroform concentrations have remained within 20% in the following wells compared
to last quarter: MW-4, TW4-1, TW4-4, TW4-7, TW4-10, TW4-11, TW4-16, TW4-18,
TW4-24, TW4-26, TW4-29, TW4-30, TW4-33, TW4-37, TW4-40 and TW4-41; and
d) Chloroform concentrations have remained non-detect in the following wells: MW-32,
TW4-3, TW4-12, TW4-13, TW4-14, TW4-23, TW4-25, TW4-28, TW4-31, TW4-32,
TW4-35, TW4-36, TW4-38, TW4-42 and TW4-43.
e) TW4-30 remained below 70 µg/L and continues to bound the plume to the east; and
f) Chloroform detected for the first time at TW4-34 last quarter has dropped below
detection this quarter.
As indicated, chloroform concentrations at many of the wells with detected chloroform were
within 20% of the values reported for the wells during the previous quarter, suggesting that
variations are within the range typical for sampling and analytical error. Wells MW-26, TW4-2,
TW4-5, TW4-6, TW4-8, TW4-9, T\Y4-19, TW4-21, TW4-22, TW4-27 and TW4-39 had
changes in concentration greater than 20%. Of these, MW-26, TW4-2, TW4-19, TW4-21, and
TW4-39 are chloroform pumping wells and TW4-22 is a nitrate pumping well; TW4-6 is located
outside and near the plume adjacent to chloroform pumping wells TW4-4 and TW4-41; TW4-8
is located just outside the plume margin adjacent to chloroform pumping well MW-4; TW4-5
and TW4-9 are located just outside the plume margin near chloroform pumping well TW4-39;
and TW4-27 is located just outside the southeastern extremity of the plume. Fluctuations in
concentrations at both chloroform and nitrate pumping wells and wells adjacent to pumping
wells likely result in part from changes in pumping. In addition, fluctuations in concentrations
are expected at wells located near the plume margins (such as TW4-5, TW4-6, TW4-8, TW4-9
and TW4-27).
Chloroform pumping wells MW-4 (1,170 µg/L); TW4-11 (2,900 µg/L); TW4-19 (7,380 µg/L);
TW4-37 (9,640 µg/L); TW4-39 (1,720 µg/L); and nitrate pumping well TW4-22 (2,350 µg/L)
had the highest detected chloroform concentrations. Although pumping well TW4-20, formerly
located between pumping wells TW4-19 and TW4-37, would typically be distinguished as
having one of the highest concentrations, TW4-20 collapsed during August, 2020 and was
abandoned in October, 2020.
Since last quarter, the chloroform concentrations in MW-4 decreased from 1,200 to 1,170 µg/L;
TW4-11 decreased from 3,020 to 2,900 µg/L; TW4-19 increased from 4,750 µg/L to 7,380 µg/L;
TW4-37 decreased from 11,600 to 9,640 µg/L; and TW4-39 increased from 843 to 1,720 µg/L.
In addition, the chloroform concentration in chloroform pumping well TW4-21 decreased from
1,070 to 482 µg/L; the concentration in chloroform pumping well TW4-41 decreased slightly
from 1,060 to 1,050 µg/L; the concentration in nitrate pumping well TW4-22 decreased from
3,190 to 2,350 µg/L; and the concentration in nitrate pumping well TW4-24 decreased from 88.9
to 79.5 µg/L, remaining just within the plume boundary this quarter. Nitrate pumping well TW4-
25 remained non-detect. TW4-25, located north of TW4-21, bounds the chloroform plume to the
north.
27
Chloroform at TW4-8 (which was non-detect from the first quarter of 2008 through the fourth
quarter of 2013) decreased from approximately 15 µg/L to approximately 4 µg/L, and remained
outside the plume. TW4-8 is located immediately east of chloroform pumping well MW-4,
where chloroform was detected at a concentration of 1,170 µg/L. Although the plume boundary
remained between MW-4 and TW4-8 from the first quarter of 2005 through the fourth quarter of
2013, TW4-8 was re-incorporated into the plume between the first quarter of 2014 and the fourth
quarter of 2019. Elevated chloroform at TW4-8 was bounded to the north by TW4-3 and TW4-
38 (both non-detect), to the northeast by TW4-13 (non-detect), to the east by TW4-36 (non-
detect), and to the southeast by TW4-14 (which has remained below 10 µg/L and is non-detect
this quarter). Although previously elevated, TW4-8 has remained outside of and has bounded the
plume since the end of 2019. Changes in the plume boundary near TW4-8 are expected to result
from changes in pumping and reduced dilution resulting from cessation of water delivery to the
northern wildlife ponds.
Chloroform at TW4-29 (located at the southeastern extremity of the plume, to the east of TW4-
26 and to the south of TW4-27) decreased slightly from 591 µg/L to 588 µg/L; and chloroform at
TW4-30, located immediately cross-gradient of TW4-29, decreased from 68.8 µg/L to 60.5
µg/L, remaining outside the plume. Chloroform at TW 4-14 decreased from 1.1 µg/L to non-
detect and chloroform at TW4-27 decreased from approximately 4.3 µg/L to 2.3 µg/L.
Concentration trends at these wells are generally consistent with ongoing, but slow,
downgradient migration of chloroform at these locations. For example, it took more than 51
quarters for detectable chloroform at TW 4-4 to migrate approximately 400 feet downgradient to
TW4-14; and it took more than 30 quarters for chloroform exceeding 70 µg/L at TW4-29 to
migrate approximately 160 feet to TW4-30. In addition, although TW4-30 was previously
downgradient of TW4-29, due to long-term changes in water levels in this area, TW4-30 is now
generally cross-gradient ofTW4-29.
Furthermore, as discussed in Section 4.1.1, increased concentrations at TW4-26 since the third
quarter of 2016 are also consistent with continuing downgradient chloroform migration which is
likely enhanced by the decay of the groundwater mound associated with the southern wildlife
pond. Increased concentrations at TW4-26 have widened the southeast extremity of the plume
which historically was narrow compared to more upgradient locations.
Chloroform at TW4-29 is bounded to the north by TW4-27 (approximately 2.3 µg/L), to the
southeast by TW4-35 (non-detect), to the south by TW4-34 (non-detect), and to the west-
northwest by TW4-6 (approximately 1.5 µg/L) and TW4-23 (non-detect). As discussed above,
TW4-30, with a concentration of 60.5 µg/L again bounds the plume to the east of TW4-29, as it
did prior to the fourth quarter of 2020. TW4-43, installed in September, 2021, served as a new
bounding well during the period that concentrations at TW4-30 exceeded 70 µg/L. Continued
monitoring will determine whether TW4-30 acts as a bounding well in the futur~ ..
Chloroform at TW4-33 (located between TW4-4 and TW4-29) showed a decrease in
concentration, from approximately 53.9 µg/L to approximately 50.5 µg/L. Although just outside
the plume since the first quarter of 2021, concentrations have remained close to 70 µg/L,
fluctuating between approximately 51 and 69 µg/L. Chloroform at TW4-33 is bounded to the
28
north by TW4-14 (non-detect), to the east by TW4-27 (approximately 2.3 µg/L), and to the west
by TW4-6 (approximately 1.5 µg/L) and TW4-23 (non-detect).
The chloroform concentration in TW4-6 decreased from approximately 3.9 µg/L to 1.5 µg/L.
TW4-6 has remained outside the chloroform plume since the third quarter of 2018. Installed in
the second quarter of 2000, TW 4-6 was the most downgradient temporary perched well prior to
installation of TW4-23 in 2007 and TW4-26 in the second quarter of 2010. TW4-6 remained
outside the chloroform plume between installation in the second quarter of 2000 and the fourth
quarter of 2008 likely due to a combination of 1) slow rates of downgradient chloroform
migration in this area due to low permeability conditions and the effects of upgradient
chloroform removal by pumping, and 2) natural attenuation. TW 4-6 was subsequently
incorporated into the plume twice: from the first quarter of 2009 through the third quarter of
2010; and from the third quarter of 2014 through the second quarter of 2018. Between initiation
of pumping of TW4-4 in the first quarter of 2010 and the second quarter of 2014, concentrations
at TW4-6 showed a net decrease from 1,000 µg/L to 10.3 µg/L.
The relatively slow rate of chloroform migration in the vicinity of TW 4-6 in the past is
demonstrated by comparing the rate of increase in chloroform at this well to the rate of increase
in the nearest upgradient well TW4-4. Concentrations at TW4-4 increased from non-detect to
more than 2,200 µg/L within only two quarters whereas 16 quarters were required for
concentrations in TW 4-6 to increase from non-detect to only 81 µg/L. This behavior is consistent
with hydraulic tests performed at TW4-4, TW4-6, and TW4-26 during the third quarter of 2010
that indicate a nearly two orders of magnitude decrease in permeability south ( downgradient) of
TW4-4. Chloroform migration rates in the vicinities of wells TW4-26, TW4-29 and TW4-33
have been expected to be relatively slow due to upgradient pumping and relatively low
permeability conditions. By analogy with the decreases in concentration at TW4-6 and TW4-26
that occurred after initiation of TW4-4 pumping, chloroform concentrations at both TW4-29 and
TW4-33 have been expected to eventually trend downward; and recent data are consistent with
this expectation.
Although changes in concentration have occurred in wells within the chloroform plume, the
boundaries of the plume have not changed significantly since the last quarter, except for slight
contractions near TW4-8, TW4-21, TW4-33 and TW4-34. The slight contractions were due to
chloroform concentration decreases at TW4-8, TW4-21, TW4-27 and TW4-33; and the decrease
in concentration at TW4-34 from 1.2 µg/L to non detect. As has been the case since the first
quarter of 2020, due primarily to decreases in concentrations at TW4-6 and TW4-33, the kriging
algorithm has 'pinched off' the southern extremity of the plume.
TW4-9 remained outside the plume from the second quarter of 2019 through the first quarter of
2021; was temporarily re-incorporated within the plume during the second quarter of 2021; and
remains outside the plume again this quarter. TW 4-9 was incorporated into the plume from the
first quarter of 2016 until the first quarter of 2019 due to increased concentrations attributable to
reduced recharge (and dilution) from the northern wildlife ponds. Prior to the first quarter of
2016? however, TW4-9 was outside the plume except during the fourth quarter of 2014.
29
Nitrate pumping generally caused the western boundary of the northern portion of the
chloroform plume to migrate to the west toward TW4-24. Since the first quarter of 2014, TW4-
24 has been both inside and outside the plume and is just within the plume this quarter. TW4-24
likely remained primarily outside the plume since 2014 due to initiation of TW4-37 pumping in
the second quarter of2015 and reduced productivity at TW4-24 (since the third quarter of 2014).
Subsequent to the first quarter of 2014, generally higher concentrations at TW4-6 and TW4-16
(both of which were within the chloroform plume in the past) caused the plume boundary to
migrate to the southwest and temporarily re-incorporate both wells. This increase was likely
related to reduced dilution from cessation of water delivery to the northern wildlife ponds and
more westerly flow induced by nitrate pumping. In addition, concentrations at TW 4-6 are
expected to be influenced by reduced recharge at the southern wildlife pond and the decay of the
associated groundwater mound.
TW 4-6 has remained outside the plume since the third quarter of 2018 due to the general
decrease in chloroform concentrations since the third quarter of 2015, while (as discussed in
Section 4.1.5) TW4-16 has been both within and outside the plume. This quarter, although TW4-
6 remains outside the plume, TW 4-16 remains just within the plume.
The decreasing trend in chloroform concentrations at TW 4-6 since the third quarter of 2015, and
generally increased concentrations at TW4-26 since the third quarter of 2016, suggest that TW4-
4 pumping has arrested chloroform migration between TW4-4 and TW4-6, and that increased
chloroform at TW4-26 results from a remnant of the plume that continues to migrate south from
TW4-6 to TW4-26. This behavior is consistent with the apparent 'pinching-off of the southern
extremity of the plume since the end of 2019. Regardless, pumping at TW4-41, located adjacent
to TW4-4, and pumping at TW4-40, located just south (downgradient) of TW4-26, is expected to
reduce or halt plume expansion to the south.
Although the nitrate pumping system may redistribute chloroform within the plume and cause
changes in the chloroform plume boundaries, continued operation of the nitrate pumping system
is expected to enhance capture associated with the chloroform pumping system. Furthermore,
since the beginning of 2015, the addition of chloroform wells TW4-1, TW4-2, TW4-11, TW4-
21, TW4-37, TW4-39, TW4-40 and TW4-41 is expected to have a beneficial impact. Generally
reduced concentrations at TW4-6 (since the first quarter of 2015) and TW4-16 (since the fourth
quarter of 2014) after previous increases are likely the result of initiation ofTW4-1, TW4-2, and
TW4-11 pumping during 2015. Maintaining reduced concentrations at TW4-6 is anticipated to
result from pumping at TW 4-41.
5.0 LONG TERM PUMP TEST AT MW-4, MW-26, TW4-19, TW4-20, AND TW4-4
OPERATIONS REPORT
5.1 Introduction
As a part of the investigation of chloroform contamination at the Mill site, EFRI has been
conducting a Long Term Pump Test on MW-4, TW4-19, MW-26, and TW4-20, and, since
January 31, 2010, TW4-4. The purpose of the test is to serve as an interim action that will
remove a significant amount of chloroform-contaminated water while gathering additional data
30
on hydraulic properties in the area of investigation. TW4-20 collapsed in August of 2020 and
was abandoned in October 2020.
Beginning in January 2013, EFRI began long term pumping of TW4-22, TW4-24, TW4-25, and
TWN-02 as required by the Nitrate CAP, dated May 7, 2012 and the Stipulated Consent Order
(the "SCO") dated December 12, 2012. Because wells TW4-22, TW4-24, and TW4-25 are
chloroform program wells, they are included in this report and any chloroform removal realized
as part of this pumping is calculated and included in the chloroform quarterly reports.
Beginning on January 14, 2015, EFRI began long term pumping ofTW4-1, TW4-2, and TW4-11
and began long term pumping ofTW4-21 and TW4-37 on June 9, 2015. Beginning in December
2016 EFRI began long term pumping of TW4-39. Beginning in April 2018 EFRI began long
term pumping of TW 4-41. Beginning in May 2019 EFRI began long term pumping of TW 4-40.
The following information documents the operational activities during the quarter.
5.2 Pump Test Data Collection
The long term pump test for MW-4 was started on April 14, 2003, followed by the start of
pumping from TW4-19 on April 30, 2003, from MW-26 on August 8, 2003, from TW4-20 on
August 4, 2005, from TW4-4 on January 31, 2010, and from TW4-22, TW4-24, and TW4-25 on
January 26, 2013. Personnel from Hydro Geo Chem, Inc. were on site to conduct the first phase
of the pump test and collect the initial two days of monitoring data for MW-4. EFRI personnel
have gathered subsequent water level and pumping data.
Analyses of hydraulic parameters and discussions of perched zone hydrogeology near MW-4 has
been provided by Hydro Geo Chem in a separate report, dated November 12, 2001, and in the
May 26, 2004 Final Report on the Long Term Pumping Test.
Data collected during the quarter included the following :
• Measurement of water levels at MW-4, TW4-l, TW4-2, TW4-4, TW4-11, TW4-
19, MW-26, TW4-21, TWN-2, TW4-22, TW4-24, TW4-25, TW4-37, TW4-39
TW4-40, and TW4-41 on a weekly basis, and at selected temporary wells and
permanent monitoring wells on a monthly basis.
• Measurement of pumping history, including:
-pumping rates
-total pumped volume
-operational and non-operational periods.
• Periodic sampling of pumped water for chloroform and nitrate/nitrite analysis and
other constituents.
5.3 Water Level Measurements
Beginning August 16, 2003, the frequency of water level measurements from MW-4, MW-26,
and TW4-19 was reduced to weekly. From commencement of pumping, and regularly after
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March 1, 2010 for TW4-4, water levels in these wells have been measured weekly. From
commencement of pumping, water levels in wells TW4-1, TW4-2, TW4-11, TW4-21, TW4-22,
TW4-24, TW4-25, TW4-37, TW4-39, TW4-41, and TWN-2 have been measured weekly. Depth
to groundwater in all other chloroform contaminant investigation wells is monitored monthly.
Copies of the weekly Depth to Water monitoring sheets for MW-4, MW-26, TW4-1, TW4-2,
TW4-11, TW4-19, TW4-21, TW4-4, TW4-22, TW4-24, TW4-25, TW4-37, TW4-39, TW4-40
(beginning May 2019), TW4-41 and TWN-2 and the monthly Depth to Water monitoring sheets
for the chloroform contaminant investigation wells and the selected temporary wells and
permanent monitoring wells are included under Tab C. Monthly depth to water measurements for
the quarter are recorded in the Field Data Worksheets included under Tab C.
5.4 Pumping Rates and Volumes
Table G-2 summarizes the recovered mass of chloroform by well per quarter and historically
since the inception of the chloroform recovery program for the active pumping wells. It is
important to note that TWN-02 is a nitrate program well and is sampled only for nitrate and
chloride as required by the nitrate program. Because TWN-02 is not sampled or analyzed for
chloroform, the mass of chloroform recovered is not calculated.
The pumping wells do not pump continuously but are on a delay device. The wells purge for a
set amount of time and then shut off to allow the well to recharge. Water from the pumping wells
is transferred to a holding tank. The water in the holding tank is used in the Mill processes. The
pumping rates and volumes for each of the pumping wells are shown in Table G-3. Specific
operational problems observed with the well or pumping equipment which occurred during the
quarter are noted for each well below.
Specific operational problems observed with the well or pumping equipment which occurred
during the quarter are noted for each well below.
5.5 Mass Removed and Plume Residual Mass
Chloroform removal was estimated as of the first quarter 2007. Since that estimation, the mass
removed by well for each quarter has been compiled in Table G-2, which shows the pounds of
chloroform that have been removed to date. The mass of chloroform removed from the plume
this quarter is approximately 15 lb., which is approximately 22 % more than the approximately
12.3 lb. removed last quarter. The larger rate of mass removal is attributable primarily to the
increased concentrations at TW 4-19.
The residual mass of chloroform within the plume is estimated as 893 lb. using the methodology
described in Appendix A of the GCAP ("Chloroform Plume Mass Calculation Method"). This is
approximately 43 lb. larger than last quarter's estimate of 850 lb, primarily due to the increased
concentrations at TW4-19 and TW4-39. As per Part III.B.2 of the GCAP, electronic files used in
calculating the mass estimate are provided with this report. Details of the procedure are provided
in Tab L.
32
The residual mass is plotted in Figure L.1. Subsequent residual plume mass estimates will be
calculated quarterly, added to the graph, and the trendline updated as per Part III.B.3 of the
GCAP.
As discussed in the CACME Report, the calculated chloroform mass is larger since the cessation
of water delivery to the two northern wildlife ponds in the first quarter of 2012. These ponds are
located immediately upgradient of the chloroform plume. The increase in calculated mass results
from increased plume area and increased average concentrations within the plume. The increases
in both plume area and average concentrations are attributable to reduced dilution due to the
reduction in chloroform-free wildlife pond seepage.
The general decrease in the residual mass estimates since the second quarter of 2016 suggests
stabilization and decline. Although the residual mass estimates are generally larger since 2012,
the rate of mass removed per quarter by pumping is also generally larger. Mass removal rates
were particularly enhanced after the addition of 5 new pumping wells in 2015; and the
subsequent addition of 3 additional pumping wells has helped maintain mass removal rates.
Furthermore, although the pumping system is not designed to hydraulically capture the entire
plume, the proportion of the mass of the plume under capture has historically been large. The
proportion of the mass of the plume under capture during the fourth quarters of 2012, 2013,
2014, 2015, 2016, 2017, 2018, 2019, 2020 and 2021 ranged from approximately 84% to 99%.
The approximate proportion of the mass of the plume under capture this quarter is 99 %, which is
larger than last quarter's approximately 96%. The increase is primarily attributable to the
increase in capture area resulting from increased drawdowns at pumping well MW-26.
5.6 Inspections
All of the required inspections were completed, and the inspection forms are included in Tab C.
5.7 Conditions That May Affect Water Levels in Piezometers
No water was added to the any of the wildlife ponds during the quarter.
6.0 CORRECTIVE ACTION REPORT
No corrective actions were necessary for the current reporting period.
6.1 Assessment of Previous Quarter's Corrective Actions
There were no corrective actions required during the previous quarters' monitoring period.
7.0 CURRENT COMPLIANCE STATUS
7.1 Long Term Chloroform Plume Control
The chloroform plume is currently entirely within the Mill property boundary and is bounded on
all sides by wells having chloroform concentrations that are either non-detect or less than 70
µg/L (Tab J). The chloroform plume is bounded to the north by TW4-25 (non-detect); to the
33
west and southwest by MW-28 (non-detect), MW-31 (non-detect), MW-32 (non-detect), TW4-6
(approximately 1.5 µg/L) and TW4-23 (non-detect); to the east by TW4-3 (non-detect), TW4-5
(nearly 8 µg/L), TW4-8 (approximately 4 µg/L), TW4-9 (nearly 7 µg/L), TW4-13 (non-detect),
TW4-14 (non-detect), TW4-18 (approximately 63 µg/L), TW4-27 (approximately 2 µg/L),
TW4-30 (approximately 61 µg/L),TW4-33 (approximately 51 µg/L); TW4-36 (non-detect) and
TW4-38 (non-detect); to the south by TW4-34 (non-detect) and TW4-42 (non-detect); and to the
southeast by TW4-35 (non-detect) and TW4-43 (non-detect).
As discussed in Section 4.1.1, although last quarter chloroform was detected at TW4-34 (located
south and cross-to downgradient of TW 4-29) at a concentration of 1.2 µg/L, chloroform was not
detected at TW4-34 this quarter. The previous quarter's detection, although below 70 µg/L, was
the first detection of chloroform since the well was initially sampled in November of 2013. That
chloroform was not detected at TW4-34 this quarter suggests that the first-time detection last
quarter was the result of cross-contamination.
In addition, chloroform is not detected at wells far to the south ( cross-to downgradient) and
southwest (cross-gradient) of the plume. MW-17 (non-detect) and MW-38 (non-detect) bound
the plume to the far southwest (cross-gradient); and MW-22 (non-detect), MW-39 (non-detect)
and MW-40 (non-detect) bound the plume far to the south (cross-to downgradient).
Because TW4-30 no longer bounded the plume immediately to the east due to increases in
concentration that brought TW4-30 into the plume for the first time during the fourth quarter of
2020, new bounding well TW4-43 was installed approximately 200 feet to the east-southeast of
TW4-30 during September, 2021. As indicated above, chloroform has not been detected at TW4-
43; and, due to decreases in chloroform concentrations since 2021, TW4-30 has been outside the
plume during the second half of 2022. Subsequent data will determine whether or not TW4-30
remains outside the plume and can serve (as in the past) as a bounding well.
Data collected to date indicate there are sufficient chloroform monitoring and pumping wells to
effectively define, control, and monitor the plume. In addition, site water level data indicate that
perched groundwater flow to the east of TW4-30, between TW4-30 and the eastern site property
boundary, is to the south-southwest; therefore it is unlikely that any chloroform within this
portion of the plume could ever migrate across the eastern property boundary. Furthermore,
chloroform in the vicinity of TW4-30 is migrating relatively slowly; it took more than 30
quarters for chloroform exceeding 70 µg/L at TW4-29 to migrate approximately 160 feet to
TW4-30. Due to long-term changes in water levels in this area, the former hydraulic gradient that
was directed from TW4-29 toward TW4-30 no longer exists; consequently, chloroform is no
longer expected to migrate from TW4-29 to TW4-30, consistent with the generally decreasing
trend in chloroform since 2021 that has brought TW4-30 outside the plume during the second
half of 2022. Finally, the groundwater flow direction in the immediate vicinity of TW4-30 is
now south-southeasterly, generally toward TW4-35 and TW4-43, both non-detect for
chloroform.
7.2 Well Construction, Maintenance and Operation
34
Part II of the GCAP specifies that EFRJ must construct, maintain and operate the chloroform
wells in accordance with the specifications delineated therein. The wells were maintained and
operated as required. Additional details regarding any specific pumping well operations and
maintenance issues noted during the quarter are discussed in Section 5.0 above.
7.3 Disposal of Extracted Groundwater
Part II of the GCAP requires that all extracted groundwater be disposed of in the tailings
management system or fed in the Mill process. All extracted groundwater was handled as
required by the GCAP.
7.4 Compliance Well Performance
Part ILG of the GCAP states that an exceedance of the compliance well performance standard is
defined as the presence of chloroform in any compliance monitoring well in excess of 70 ug/L
for two or more quarters.
The compliance well chloroform concentrations were below the 70 ug/L except as noted in
previous reports. The previously noted exceedances have been addressed in Plans and Time
Schedules. There are no new exceedances in Q4 2022.
7.5 Chloroform Plume Monitoring for Wells within 500 Feet of the Property Boundary
Currently there are no compliance wells within 500 feet of the property boundary.
8.0 CONCLUSIONS AND RECOMMENDATIONS
The residual mass of chloroform within the plume is estimated as 893 lb. using the methodology
described in Appendix A of the GCAP ("Chloroform Plume Mass Calculation Method"). This is
approximately 43 lb. more than last quarter's estimate of 850 lb., attributable primarily to
increased concentrations at chloroform pumping wells TW4-19 and TW4-39. However, since the
third quarter of 2015, the residual mass estimate trend is downward; and the current quarter's
estimate of 893 lb. is substantially lower than both the third quarter 2015 estimate of 1,712 lb.,
and the maximum of 2,261 lb. estimated for the second quarter of 2016.
The mass of chloroform removed from the plume this quarter by pumping, approximately 15 lb.,
is approximately 22 % larger than the mass removed last quarter (approximately 12.3 lb.). The
larger mass removal is attributable primarily to the increased concentrations at pumping well
TW4-19.
The chloroform plume is currently entirely within the Mill property boundary and is bounded on
all sides by wells having chloroform concentrations that are either non-detect or less than 70
µg/L (Tab J). The chloroform plume is bounded to the north by TW4-25 (non-detect); to the
west and southwest by MW-28 (non-detect), MW-31 (non-detect), MW-32 (non-detect), TW4-6
(approximately 1.5 µg/L) and TW4-23 (non-detect); to the east by TW4-3 (non-detect), TW4-5
(nearly 8 µg/L), TW4-8 (approximately 4 µg/L), TW4-9 (nearly 7 µg/L), TW4-13 (non-detect),
TW4-14 (non-detect), TW4-18 (approximately 63 µg/L), TW4-27 (approximately 2 µg/L),
35
TW4-30 (approximately 61 µg/L),TW4-33 (approximately 51 µg/L); TW4-36 (non-detect) and
TW4-38 (non-detect); to the south by TW4-34 (non-detect) and TW4-42 (non-detect); and to the
southeast by TW4-35 (non-detect) and TW4-43 (non-detect).
Because TW4-30 no longer bounded the plume immediately to the east due to increases in
concentration that brought TW4-30 into the plume for the first time during the fourth quarter of
2020, new bounding well TW4-43 was installed approximately 200 feet to the east-southeast of
TW4-30 during September, 2021. As indicated above, chloroform has not been detected at TW4-
43. However, due to concentration decreases since 2021, TW4-30 has been outside the plume
throughout the second half of 2022, and again bounds the plume to the east. Subsequent data will
determine whether or not TW4-30 remains outside the plume and can serve (as in the past) as a
bounding well in the future ..
Data collected to date indicate there are sufficient chloroform monitoring and pumping wells to
effectively define, control, and monitor the plume. In addition, site water level data indicate that
perched groundwater flow to the east ofTW4-30, between TW4-30 and the eastern site property
boundary, is to the south-southwest; therefore it is unlikely that any chloroform within this
portion of the plume could ever migrate across the eastern property boundary. Furthermore,
chloroform in the vicinity of TW4-30 is migrating relatively slowly; it took more than 30
quarters for chloroform exceeding 70 µg/L at TW4-29 to migrate approximately 160 feet to
TW4-30. Due to long-term changes in water levels in this area, the former hydraulic gradient that
was directed from TW4-29 toward TW4-30 no longer exists; consequently, chloroform is no
longer expected to migrate from TW4-29 to TW4-30, consistent with the concentration decreases
since 2021 that have brought TW4-30 again outside the plume. Finally, the groundwater flow
direction in the immediate vicinity of TW4-30 is now south-southeasterly, generally toward
TW4-35 and TW4-43, both non-detect for chloroform.
The water level contour maps for the fourth quarter, 2022 indicate effective capture of water
containing high chloroform concentrations over most of the chloroform plume. Capture in the
southeastern portion of the plume (vicinity of MW-4) was enhanced by start-up of chloroform
pumping wells TW4-1, TW4-2, and TW4-11 during the first quarter of 2015. Capture in the
northwestern portion of the plume was enhanced by start-up of chloroform pumping wells TW 4-
21 and TW4-37 during the second quarter of 2015; and of TW4-39 during the fourth quarter of
2016. Capture in the southernmost portion of the plume was enhanced by start-up of pumping at
TW4-41 during the second quarter of 2018 and of TW4-40 during the second quarter of 2019.
All pumping wells added since the beginning of 2015 have enhanced the effectiveness of
chloroform mass removal.
Although pumping began in the first quarter of 2010, a well-defined capture zone was not clearly
evident at chloroform pumping well TW 4-4 until the third quarter of 2018. Increased drawdowns
in this area since the second quarter of 2018, and development of a definable capture zone, is
attributable to pumping at adjacent well TW4-41.
The capture zone associated with TW 4-4 was likely obscured prior to the second quarter of 2018
by the historically relatively low water level at adjacent well TW4-14 and the two orders of
magnitude decrease in permeability south of TW4-4. However, as noted in previous reports,
36
between the first quarter of 2010 and the second quarter of 2014, decreases in chloroform
concentrations and the rate of water level rise at TW4-6 (located downgradient of TW4-4) likely
resulted from TW 4-4 pumping.
Cones of depression associated with the nitrate pumping wells became evident as of the fourth
quarter of 2013, and capture associated with the nitrate pumping is expected to continue to
develop. Overall, the apparent capture area of the combined chloroform and nitrate pumping
systems is smaller than last quarter, with capture decreasing within the northern portion of the
combined pumping system due primarily to decreased drawdowns at nitrate pumping wells
TW4-22 and TWN-2.
'Background' flow through the chloroform plume was calculated as approximately 3.4 gpm (See
HGC, March 31, 2016: Corrective Action Comprehensive Monitoring Evaluation [CACME]
Report, White Mesa Uranium Mill, Near Blanding, Utah). Pumping from wells within and
immediately adjacent to the chloroform plume during the current quarter (from wells MW-4,
MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-22, TW4-24, TW4-37,
TW4-39, TW4-40 and TW4-41) is approximately 5 gpm. The combined pumping rate of 5 gpm
exceeds the calculated background flow by 1.6 gpm or 47 %, and is considered adequate at the
present time.
Chloroform concentrations at many of the wells with detected chloroform were within 20% of
the values reported during the previous quarter, suggesting that variations are within the range
typical for sampling and analytical error. Wells MW-26, TW4-2, TW4-5, TW4-6, TW4-8, TW4-
9, TW4-19, TW4-21, TW4-22, TW4-27 and TW4-39 had changes in concentration greater than
20%. Of these, MW-26, TW4-2, TW4-19, TW4-21, and TW4-39 are chloroform pumping wells
and TW4-22 is a nitrate pumping well; TW4-6 is located outside and near the plume adjacent to
chloroform pumping wells TW4-4 and TW4-41; TW4-8 is located just outside the plume margin
adjacent to chloroform pumping well MW-4; TW4-5 and TW4-9 are located just outside the
plume margin near chloroform pumping well TW4-39; and TW4-27 is located just outside the
southeastern extremity of the plume boundary. Fluctuations in concentrations at both chloroform
and nitrate pumping wells and wells adjacent to pumping wells likely result in part from changes
in pumping. In addition, fluctuations in concentrations are expected at wells located near the
plume margins. Furthermore, changes in concentrations at chloroform wells are expected to
result from continued operation of the nitrate pumping system, as the capture associated with
nitrate pumping expands and flow directions change locally.
Chloroform pumping wells MW-4 (1,170 µg/L); TW4-11 (2,900 µg/L); TW4-19 (7,380 µg/L);
TW4-37 (9,640 µg/L); TW4-39 (1,720 µg/L); and nitrate pumping well TW4-22 (2,350 µg/L)
had the highest detected chloroform concentrations. Since last quarter, the chloroform
concentrations in MW-4 decreased from 1,200 to 1,170 µg/L; TW4-11 decreased from 3,020 to
2,900 µg/L; TW4-19 increased from 4,750 µg/L to 7,380 µg/L; TW4-37 decreased from 11,600
to 9,640 µg/L; and TW4-39 increased from 843 to 1,720 µg/L.
In addition, the chloroform concentration in chloroform pumping well TW4-21 decreased from
1,070 to 482 µg/L; the concentration in chloroform pumping well TW4-41 decreased slightly
from 1,060 to 1,050 µg/L; the concentration in nitrate pumping well TW4-22 decreased from
37
3,190 to 2,350 µg/L; and the concentration in nitrate pumping well TW4-24 decreased from 88.9
to 79.5 µg/L, remaining just within the plume boundary this quarter. Nitrate pumping well TW4-
25 remained non-detect. TW4-25, located north of TW4-21, bounds the chloroform plume to the
north.
Chloroform at TW4-8 (which was non-detect from the first quarter of 2008 through the fourth
quarter of 2013) decreased from approximately 15 µg/L to 4 µg/L, and remained outside the
plume. TW 4-8 is located immediately east of chloroform pumping well MW-4, where
chloroform was detected at a concentration of 1, 1 70 µg/L. Although the plume boundary
remained between MW-4 and TW 4-8 from the first quarter of 2005 through the fourth quarter of
2013, TW4-8 was re-incorporated into the plume between the first quarter of 2014 and the fourth
quarter of 2019. Elevated chloroform at TW4-8 was bounded to the north by TW4-3 and TW4-
38 (both non-detect), to the northeast by TW4-13 (non-detect), to the east by TW4-36 (non-
detect), and to the southeast by TW4-14 (which has remained below 10 µg/L and is non-detect
this quarter). Although previously elevated, TW4-8 has remained outside of and has bounded the
plume since the end of 2019. Changes in the plume boundary near TW 4-8 are expected to result
from changes in pumping and reduced dilution resulting from cessation of water delivery to the
northern wildlife ponds.
Detectable chloroform concentrations at TW4-14 (between the fourth quarter of 2014 and the
first quarter of 2021; and during the previous quarter) and at TW4-27 (since the third quarter of
2015) are consistent with continued, but slow, downgradient migration of chloroform from the
distal end of the plume (near TW4-29 and TW4-33) into the low permeability materials
penetrated by TW4-14 and TW4-27. Chloroform at TW4-14 dropped from 1.1 µg/L to non-
detect and chloroform at TW4-27 decreased from approximately 4 µg/L to 2 µg/L. Pumping at
TW 4-41 is expected to reduce or prevent future migration of chloroform toward these wells.
Concentration trends at TW4-29 (located at the southeastern extremity of the plume, to the east
of TW4-26 and to the south ofTW4-27); and at TW4-30 (located immediately east ofTW4-29),
are also generally consistent with ongoing, but slow, downgradient migration of chloroform.
Although previously downgradient of TW4-29, due to long-term changes in water levels in this
area, TW4-30 is now generally cross-gradient of TW4-29. Chloroform at TW4-29 decreased
slightly from 591 µg/L to 588 µg/L; and chloroform at TW4-30 decreased from approximately
69 µg/L to 61 µg/L, remaining just outside the plume. As discussed above, slow downgradient
migration is consistent with the more than 30 quarters needed for chloroform exceeding 70 µg/L
at TW4-29 to migrate approximately 160 feet to TW4-30 (although TW4-30 is again outside the
plume).
Chloroform at TW4-29 is bounded to the north by TW4-27 (approximately 2.3 µg/L), to the
southeast by TW4-35 (non-detect), to the south by TW4-34 (non-detect), and to the west-
northwest by TW4-6 (approximately 1.5 µg/L) and TW4-23 (non-detect). As discussed above,
TW4-30 no longer bounded the plume immediately to the east and TW4-43 has acted as a new
bounding well in this area; however, due to decreased concentrations, TW4-30 has bounded the
plume to the east during the second half of 2022 .. In addition, generally increased concentrations
at TW4-26 since the third quarter of 2016 are consistent with continuing downgradient
38
chloroform migration, which is likely enhanced by the decay of the groundwater mound
associated with the southern wildlife pond.
Chloroform at TW4-33 (located between TW4-4 and TW4-29), which has remained just below
70 µg/L since the first quarter of 2021, showed a decrease in concentration, from approximately
54 µg/L to approximately 51 µg/L. Chloroform at TW4-33 is bounded to the north by TW4-14
(non-detect), to the east by TW4-27 (approximately 2 µg/L), and to the west by TW4-6 (less than
2 µg/L) and TW4-23 (non-detect).
Although changes in concentration have occurred in wells within the chloroform plume, the
boundaries of the plume have not changed significantly since the last quarter, except for slight
contractions near TW4-8, TW4-21, TW4-33 and TW4-34. The slight contractions were due to
chloroform concentration decreases at TW4-8, TW4-21, TW4-27 and TW4-33; and the decrease
in concentration at TW4-34 from 1.2 µg/L to non detect. As has been the case since the first
quarter of 2020, due primarily to decreases in concentrations at TW4-6 and TW4-33, the kriging
algorithm has 'pinched off' the southern extremity of the plume.
TW 4-9 remained outside the plume from the second quarter of 2019 through the first quarter of
2021; was temporarily re-incorporated within the plume during the second quarter of 2021; and
remains outside the plume again this quarter. TW 4-9 was incorporated into the plume from the
first quarter of 2016 until the first quarter of 2019 due to increased concentrations attributable to
reduced recharge (and dilution) from the northern wildlife ponds. However, except for the fourth
quarter of 2014, TW4-9 was outside the plume prior to the first quarter of 2016. TW4-38 was
installed to' the east-southeast of TW4-9 to serve as a bounding well when concentrations at
TW4-9 exceeded 70 µg/L.
Nitrate pumping generally caused the western boundary of the northern portion of the
chloroform plume to migrate to the west toward TW4-24. Since the first quarter of 2014, TW4-
24 has been both inside and outside the plume and is again just within the plume this quarter.
TW4-24 likely remained primarily outside the plume since 2014 due to initiation of TW4-37
pumping in the second quarter of 2015 and reduced productivity at TW4-24 (since the third
quarter of 2014). Subsequent to the first quarter of 2014, generally increased concentrations at
TW4-6 and TW4-16 (both of which were within the chloroform plume in the past), caused the
plume boundary to migrate to the southwest and temporarily re-incorporate both wells. Increased
concentrations at these wells subsequent to the first quarter of 2014 are likely related to reduced
dilution from cessation of water delivery to the northern wildlife ponds and more westerly flow
induced by nitrate pumping. In addition, concentrations at TW 4-6 are expected to be influenced
by reduced recharge at the southern wildlife pond and the decay of the associated groundwater
mound.
Since 2014, TW 4-16 has been both within and outside the plume; whereas a decreasing trend in
chloroform concentrations at TW4-6 (since the third quarter of 2015) has once again taken TW4-
6 outside the plume. This quarter, TW4-16 and TW4-6 remain within and outside the plume,
respectively. Although chloroform at TW4-16 has been above and below 70 µg/L since 2014,
and was detected at 152 µg/L this quarter, concentrations have generally increased since 2018,
likely in response to reduced dilution.
39
The decreasing trend in chloroform concentration at TW4-6 since the third quarter of 2015, and
generally increased concentrations at TW4-26 since the third quarter of 2016, suggest that TW4-
4 pumping has arrested chloroform migration between TW 4-4 and TW 4-6, and that the increased
chloroform at TW4-26 results from a remnant of the plume that continues to migrate south from
TW4-6 to TW4-26. Pumping at adjacent well TW4-41 since the second quarter of 2018 has
likely enhanced the decline in TW 4-6 concentrations to less than 70 µg/L.
Although the nitrate pumping system may redistribute chloroform within the plume and cause
changes in the chloroform plume boundaries, continued operation of the nitrate pumping system
is expected to enhance capture associated with the chloroform pumping system. Furthermore, the
addition of chloroform pumping wells TW4-1, TW4-2, TW4-11, TW4-21, TW4-37, TW4-39,
TW4-40 and TW4-41 since the beginning of 2015 is expected to have a beneficial impact.
Generally reduced concentrations at TW4-6 (since the third quarter of 2015) and TW4-16 (since
the fourth quarter of 2014) after previous increases are likely the result of initiation of TW4-1,
TW4-2, and TW4-11 pumping.
Continued operation of the original chloroform pumping wells (MW-4, MW-26, and TW4-19) is
recommended. Pumping these wells, regardless of any short-term fluctuations in concentrations
detected at the wells, helps to reduce downgradient chloroform migration by removing
chloroform mass and reducing hydraulic gradients, thereby allowing natural attenuation to be
more effective.
Continued operation of chloroform pumping well TW4-4, augmented by pumping at adjacent
well TW4-41, is recommended to improve capture of chloroform to the extent practical in the
southern portion of the plume. The overall decrease in chloroform concentrations at TW 4-6 from
1,000 µg/L in the first quarter of2010 to 10.3 µg/L in the second quarter of 2014 is likely related
to pumping at TW4-4. The decrease in the long-term rate of water level rise at TW4-6 once
TW4-4 pumping began, which suggests that TW4-6 is within the hydraulic influence of TW4-4,
is also consistent with the decrease in chloroform concentrations at TW 4-6 between the first
quarter of 2010 and the second quarter of 2014. The decreasing trend in water levels beginning
in 2014 and, as noted above, the generally decreasing chloroform concentrations since the first
quarter of 2015 at TW4-6 are also attributable in part to TW4-4 (augmented by TW4-41)
pumpmg.
Continued operation of chloroform pumping wells TW4-1, TW4-2, TW4-11, TW4-21, TW4-37,
TW4-39, TW4-40 and TW4-41 is also recommended because pumping these wells has increased
overall capture and improved chloroform mass removal. In particular, continued pumping of
TW4-37 (in conjunction with TW4-19) compensates for the loss of TW4-20; and pumping at
TW 4-40 has expanded capture within the southern extremity of the plume.
Furthermore, because of the influence of TW4-4 pumping (augmented by TW4-41 pumping
since the second quarter of 2018), and by analogy with the concentration decreases at TW 4-6 and
TW4-26 that occurred after initiation of TW4-4 pumping, chloroform concentrations at TW4-29
and TW4-33 have been expected to eventually trend downward. Since the third quarter of 2014,
TW4-33 concentrations that have been relatively stable to decreasing; and TW4-29
40
concentrations that generally increased before becoming relatively stable to decreasing; appear
consistent with these expectations. As discussed above. trends at these wells suggest that
chloroform migration has been arrested at TW4-33 by TW4-4 (and TW4-41) pumping and that
previously increasing chloroform at downgradient well TW4-29 resulted from a remnant of the
plume that migrated past TW4-33 generally toward TW4-30, which until recently was
downgradient of TW4-29, and which until the fourth quarter of 2020 bounded the plume to the
east. As discussed above, due to concentration decreases since 2021, TW4-30 again bounds the
plume to the east; and continued monitoring will determine whether it can function (as in the
past) as a bounding well in the future.
The influence of TW4-4 pumping at the distal end of the plume is consistent with decreasing
water levels at both TW4-29 and TW4-33. Pumping at adjacent well TW4-41 has been expected
to help maintain or enhance these decreasing trends in water levels and to augment the expected
eventual reductions in concentrations in the distal end of the plume. Continued evaluation of
trends at TW4-29 and TW4-33 will be provided in subsequent quarters.
EFRI and its consultants have raised the issues and potential effects associated with cessation of
water delivery to the northern wildlife ponds in March, 2012 during discussions with DWMRC
in March 2012 and May 2013. While past recharge from the ponds has helped limit many
constituent concentrations within the chloroform and nitrate plumes by dilution, the associated
groundwater mounding has increased hydraulic gradients and contributed to plume migration.
Since use of the northern wildlife ponds ceased in March 2012, the reduction in recharge and
decay of the associated groundwater mound has caused the expected decrease in hydraulic
gradients and the increases in constituent concentrations within the chloroform plume. Generally
increased chloroform concentrations at TW4-6 (between 2013 and 2020); and at TW4-8, TW4-9
and TW4-16 (since 2013), are likely related in part to reduced dilution (although concentrations
at TW4-6 and TW4-8 have been trending downward since the first quarter of 2015; and
concentrations at TW4-9 have been trending generally downward since the first quarter of 2018).
As discussed above, increased concentrations at TW4-26 since the third quarter of 2016 that are
consistent with continuing downgradient chloroform migration are also likely enhanced by the
decay of the groundwater mound associated with the southern wildlife pond.
The net impact of reduced wildlife pond recharge has been expected to be beneficial even though
it was also expected to result in (temporarily) higher concentrations that would persist until
continued mass reduction via pumping and natural attenuation ultimately reduced concentrations.
Temporary increases in chloroform concentrations have been judged less important than reduced
chloroform migration rates. The evolution of the impacts of reduced recharge on concentrations
and plume migration rates will be defined by continued monitoring.
9.0 ELECTRONIC DATA FILES AND FORMAT
EFRI has provided to the Director an electronic copy of the laboratory results for gr9undwater
quality monitoring conducted under the chloroform contaminant investigation during the quarter,
in Comma Separated Values format. A copy of the transmittal e-mail is included under Tab M.
41
10.0 SIGNATURE AND CERTIFICATION
This document was prepared by Energy Fuels Resources (USA) Inc.
Energy Fuels Resources (USA) Inc.
By:
Scott A. Bakken
Vice President, Regulatory Affairs
42
Certification:
I certify, under penalty of law, that this document and all attachments were prepared
under my direction or supervision in accordance with a system designed to assure that qualified
personnel properly gather and evaluate the information submitted. Based on my inquiry of the
person or persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for knowing violations.
Scott A. Bakken
Vice President, Regulatory Affairs
Energy Fuels Resources (USA) Inc.
43
Tables
Table 1: Summary of Well Sampling for the Period
Well Sample Date Date of Lab Report
MW-04 11/30/2022 12/16/2022
TW4-01 11/30/2022 12/16/2022
TW4-02 11/30/2022 12/16/2022
TW4-03 12/7/2022 12/21/2022
TW4-03R 12/6/2022 12/21/2022
TW4-04 11/30/2022 12/16/2022
TW4-05 12/8/2022 12/21/2022
TW4-06 12/8/2022 12/21/2022
TW4-07 12/9/2022 1/3/2023
TW4-08 12/8/2022 12/21/2022
TW4-09 12/8/2022 12/21/2022
TW4-10 12/9/2022 1/3/2023
TW4-ll 11/30/2022 12/16/2022
TW4-12 12/7/2022 12/21/2022
TW4-13 12/7/2022 12/21/2022
TW4-14 12/8/2022 12/21/2022
MW-26 11/30/2022 12/16/2022
TW4-16 12/9/2022 1/3/2023
MW-32 12/8/2022 12/21/2022
TW4-18 12/9/2022 1/3/2023
TW4-19 11/30/2022 12/16/2022
TW4-21 11/30/2022 12/16/2022
TW4-22 11/30/2022 12/16/2022
TW4-23 12/7/2022 12/21/2022
TW4-24 11/30/2022 12/16/2022
TW4-25 11/30/2022 12/16/2022
TW4-26 12/9/2022 1/3/2023
TW4-27 12/8/2022 12/21/2022
TW4-28 12/7/2022 12/21/2022
TW4-29 12/9/2022 1/3/2023
TW4-30 12/9/2022 1/3/2023
TW4-31 12/7/2022 12/21/2022
TW4-32 12/7/2022 12/21/2022
TW4-33 12/9/2022 1/3/2023
TW4-33R 12/8/2022 12/21/2022
TW4-34 12/8/2022 12/21/2022
TW4-35 12/7/2022 12/21/2022
TW4-36 12/7/2022 12/21/2022
TW4-37 11/30/2022 12/16/2022
TW4-38 12/7/2022 12/21/2022
TW4-39 11/30/2022 12/16/2022
TW4-40 11/30/2022 12/16/2022
TW4-41 11/30/2022 12/16/2022
TW4-42 12/7/2022 12/21/2022
TW4-43 12/7/2022 12/21/2022
TW4-60 11/30/2022 12/16/2022
TW4-65 12/7/2022 12/21/2022
TW4-70 12/8/2022 12/21/2022
TW4-75 12/9/2022 1/3/2023
All sample locations were sampled for Chlorofonn, Carbon Tetrachloride, Chloromethane, Methylene
Chloride, Chloride and Nitrogen.
Date in parantheses is the date the analytical data package was resubmitted by the laboratory. The
package was resubmitted to correct an error.
"R" following a well number deisgnates a rinsate sample collected prior to purging of the well of that
number.
TW4-60 is a DI Field Blank, TW4-65 is a duplicate ofTW4-42, and TW4-70 is a duplicate ofTW4-38
and TW4-75 is a duplicate ofTW4-18.
Highlighted wells are continuously pumped.
Tab A
Site Plan and Perched Well Locations White Mesa Site
TabB
Order of Sampling and Field Data Worksheets
Order of Contamination for 4th Quarter 2022 Chloroform Purging Event
Chlorofonn
Well Sample time Levels Rinsate date/time
TW4-03 l1/7/U c,,3'i ND
TW4-42 j'l./"P (.U 01'15 ND
TW4-12 tz,H(t,Z, b1.55 ND
TW4-28 /Zhlt,'l. O(O'f ND
Tw4-32 iz.111u oni; , ND
TW4-13 lt/'11µ. OKZ2 ND
TW4-36 1i.n1µ.oi=o ND
TW4-31 Jz,h/zz 6~0 ND
TW4-43 11.(1/i,z 08~8 ND
TW4-35 IZ/7/AA Q~S1 ND
TW4-23 12./1/26 0 tr1 ND
TW4-38 11/1{A ()'1/L ND
TW4-25 11(3Q/zt Oj'{5 ND
MW-32 l'Z./jlZ.Z. f210 ND
TW4-14 11/8/z.2 Qg()O 1.1
~:~~: ::g;:m,'f ~:~
TW4-27 !l,/f/a,oau, 4.3
TW4-09 LUSl'A Of.?t' 10.8
TW4-05 12,/t,{ag O~'i.5 13.2
TW4-08 /Zlt</p;J, ()f<.5~ 15.3
.,TW4.-33 J2{1/t.'t JQL5 53.9
-TW4-18 n./1/t.~ JO'?,S 60.6
• TW4-30 J2/1tzt JQr.5 68.8
TW4-24 U/3O/2? 0855 88.9
-TW4-16 /Z./1/.U. ll"l.5 138
TW4-40 l(/.30/Z2. 101.5 302
-TW4-10 lt/1/%'2, 1153 563
-. TW4-29 j-Z./1/2.2 12.l'Z. 591
MW-26 1l l,o/1.l O'IZZ. 612
TW4-02 ll/30/Z.'2. C)Cf3', 832
TW4-39 llf30/2't Q"f {!i 843
-TW4-07 12 (1 /7:Z. Jl,Jl> 887
-TW4-26 1?./'i/;2, 12't·:t. 930
TW4-01 11 {1o{Z~ 0Cf;2. 954
TW4-0411/j0/t.'l. jOO/ 1040
TW4-41 11/30/Z'l JooO 1060
TW4-21 Jl/.30/zt 083.5 1070
MW-04 ll/30/Z't. 09'15 1200
TW4-ll 11/30/Zt. 093D 3020
TW4-22 11/30/1:Z. O'f02 3 I 90
TW4-19 11/.30/n 08?0 4750
TW4-37 ll[lQ/U OC\[)Bl1600
TW4-60 D.1.Blank fl/30/ZJ... OSIO
TW4-65 Duplicate 11.111?4, t>tsS
TW4-70 Duplicate IZ.lt./:A:J OgJb ~ TW4-75 Duplicate lt.lif lt.f. 1015
Comments:
Water
level
Well
Depth
141
86
101.5
107
115.l
102.5
99
106
97.9
87.5
114
112.75
134.8 Cont. Pumping
130.6 Bladder pump
93
97.2
97.5
-96
120
120
8
1f~ j~L-! -5!)R _ 11.08ZOZ.'2.
137.5
92.5
112.5 Cont. Pumping
146.3
86 Cont. Pumping
111
93.5
122.5 Cont. Pumping
120 Cont. Pumping
120 Cont. Pumping
120
86
110 Cont. Pumping
112 Cont. Pumping
97.75 Cont. Pumping
121 Cont. Pumping
124 Cont. Pumping
100 Cont. Pumping
113.5 Cont. Pumping
125 Cont. Pumping
112 Cont. Pumping
073.5
( ...
~-~~~ w,;:j,-~y~
Location ID
Field Sample ID
Purge Date & Time
Sample Date & Time
Purging Equipment
Pump Type
Purging Method
Casing Volume (gal)
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0
pH Buffer 4.0
Specific Conductance (micromhos)
Date/Time Gallons Purged
11/30/2022 9:44
!volume of water purged()
[Final_Qepth to Water (feet)
Name of Certified Analytical Laboratory
AWSL
Analytical Samples ln!onnatic>n
Type of Sample/Analysis
VOCs-Chloroform
Chloride
Nitrate/nitrite as N
Comments:
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
MW-04 Sampling Program Chloroform Monitoring
MW-04 11302022 S_it_lll_Pling Event 2022 Q4 Chloroform
11/30/2022 9:44
11/30/2022 9:45 !sampler TH/DL
Pump Weather Conditions Sunny
Grundfos External Ambient Temperature (C) -1
2 Casings Previous Well Sampled TW4-02
14.58
7.0 Well Depth (ft) 123.60
4.0 Well Casing Diameter (in) 3
1000 Depth to Water Before Purging (ft) 83.87
Conductivity Dissolved
(umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
1970 6.92 13.40 327 0 44.8
Pumping Rate Calculations
Flow Rate (Q = S/60) (gal/min) 4.0
Time to evacuate 2 Casing Volumes ()
85.22 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Sample Container Preservative
Collected? Matrix Number Type Sample Filtered? Type Added?
y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
y WATER 1 500-ml Poly u None N
y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y
I Arrived on site at 0940. Samples collected at 0945. Water was clear. Left site at 0947.
Signature of Field Technician
---"\ ,, ._____) ,,,,,,,_c __ ,-.!:;,,'.-,:1/~)
Groundwater Discharge Permit
,,,.. ,,..---e.~--t£. , ... 1-•-·· .· .-· -_ 1-,•
I' ... -_:\ ~ . I . }' .···· .EJl'wERGY~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID MW-26 Sampling Program Chloroform Monitoring
Field Sample ID MW-26 11302022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 11/30/2022 9:21
Sample Date & Time 11/30/2022 9:22 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) -2
Purging Method 2 Casings Previous Well Sampled TW4-39
Casing Volume (gal) 29.23
Calculated Casing Volumes Purge Duration ()
pH Buffer 7 .0 7.0 Well Depth (ft) 121.33
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 76.56
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
11/30/2022 9:22 3566 6.64 14.67 413 0 34.5
Pumping Rate Calculations
[volume of water purged() Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes () I Final Depth to Water (feet) 92.21 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
~3.lytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-mL Poly u None N
Nitrate/nitrite as N y WATER 1 250-mL HOPE u H2SO4 (pH<2), 4 Deg C y
Comments:
j Arrived on site at 0918. Samples collected at 0922. Water was clear. Left site at 0924.
Signature of Field Technician
~ . ,' ,
.._____) , ' . ,,,><---!-;;i--:1/, ~>)
Groundwater Discharge Permit
< :---a-----•~,. -,. _;,-.· _-' -' r -·-.·• ;. ·,,•---~Y~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID MW-32 Sampling Program Chloroform Monitoring
Field Sample ID MW-32 12082022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/8/2022 7:10
Sample Date & Time 12/8/2022 12:10 !sampler I TH/DL I
Purging Equipment Pump Weather Conditions Clear
Pump Type QED External Ambient Temperature (C) -5
Purging Method 2 Casings Previous Well Sampled TW4-08
Casing Volume (gal) 31.10
Calculated Casing Volumes Purge Duration (min) 286.65
pH Buffer 7.0 7.0 Well Depth (ft) 130.60
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 82.97
Conductivity Dissolved
Date!Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/8/2022 12:07 64.44 3674 6.30 14.10 380 36.0 8.0
12/8/2022 12:08 64.66 3779 6.30 14.13 370 38.0 7.6
12/8/2022 12:09 64.88 3668 6.33 14.14 365 37.0 7.4
12/8/2022 12:10 65.10 3667 6.36 14.16 341 38.0 7.0
Pumping Rate Calculations
[volume of water p'!!_ged (gals) 65.10 Flow Rate (Q = S/60) (gal/min) .217
[Final Depth to Water (feet) 87.02
Time to evacuate 2 Casing Volumes (min) 300.00
Number of casing Volumes 2.00
Volume, if well evacuated to dryness () 0
Name of Certified _Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-mL Poly u None N
Nitrate/nitrite as N y WATER 1 250-mL HDPE u H2SO4 (pH<2), 4 Deg C y
Comments: I Arrived on site at 0705. Purge began at 0710. Purged well for a total of 300 minutes. Purge ended and samples collected at 1210. Water was a little murky. Left site at 1216.
Signature of Field Technician
-----. ' -· ./.>: ./ .______J ., , : ,-:.•✓,:_, -r~1'. -, ,/,_ d.z ~) -<.
( . ,,.,., ~B·-.·.El .• .--//.,---'
_.', -~y~
Location ID
Field Sample ID
Purge Date & Time
Sample Date & Time
Purging Equipment
Pump Type
Purging Method
Casing Volume ()
Calculated Casing Volumes Purge Duration ()
pH Buffer 7 .0
pH Buffer 4.0
Specific Conductance ()
Date!Time Gallons Purged (gal)
12/6/2022 7:35 133.00
[volume of water purged ()
[ Final Depth to Water (feet)
Name of Certified Analytical Lab~ratory
AWSL
Analytical Samples Information
Type of Sample/Analysis
VOCs-Chloroform
Chloride
Nitrate/nitrite as N
Comments:
Signature of Field Technician
~ . , :,,,•.c~ -~i. --({~4)
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
TW4-03R Samplif!g Program
TW4-03R 12062022 Sampling Event 2022 Q4 Chloroform
12/6/2022 7:35 [sampler TH/DL
Weather Conditions
External Ambient Temperature ()
Previous Well Sampled
Well Depth (ft)
Well Casing Diameter ()
Depth to Water Before Purging (ft)
Conductivity Dissolved
(umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
3.1 6.63 8.77 487 0 15.0
Pumping_Rate Calculations
Flow Rate (Q = S/60) O
Time to evacuate 2 Casing Volumes ()
Number of casing Volumes
Volume, if well evacuated to dryness ()
Sample Container Preservative
Collected? Matrix Number Type Sample Filtered? Type Added?
y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y
y WATER 1 500-ml Poly u None N
y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Groundwater Discharge Permit --'F-" (" ---. ~-. ~a =y~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-33R Sampling Program
Field Sample ID TW4-33R 12082022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time
Sample Date & Time 12/8/2022 9:15 !sampler TH/DL
Purging Equipment Weather Conditions
Pump Type External Ambient Temperature ()
Purging Method Previous Well Sampled
Casing Volume ()
Calculated Casing Volumes Purge Duration ()
pH Buffer 7 .O Well Depth (ft)
pH Buffer 4.0 Well Casing Diameter O
Specific Conductance () Depth to Water Before Purging (ft)
Conductivity Dissolved
Date!Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/8/2022 9:13 133.00 10.0 6.20 13.23 340 0 18.0
[volume of water purged()
Pumpi_rig_ Ratt! C_al_!:ulations
Flow Rate (Q = S/60) ()
[ Final Depth to Water (feet)
Time to evacuate 2 Casing Volumes ()
Number of casing Volumes
Volume, if well evacuated to dryness ()
Name of Certified Analytical Laboratory
AWSL
A_r,(!_l}'tical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
Signature of Field Technician
~ .· /,/_ /
....__J _,,Ct,;',,C __ -/-/· -c ~ ;✓.'/)
Groundwater Discharge Permit ---E r-_ --. ~·~y~ Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-65 Sampling Program
Field Sample ID TW4-65 12072022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time
Sample Date & Time 12/7/2022 7:55 [sampler TH/DL
Purging Equipment Weather Conditions
Pump Type External Ambient Temperature ()
Purging Method Previous Well Sampled
Casing Volume ()
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 Well Depth (ft)
pH Buffer 4.0 Well Casing Diameter ()
Specific Conductance () Depth to Water Before Purging (ft)
Date/Time Gallons Pu!_ged Conductivity pH Temp Redox Turbidity Dissolved Oxygen I Before/After I
[volume of water purged()
~ umping Rate Calculi:i!ions
Flow Rate (Q = S/60) ()
Time to evacuate 2 Casing Volumes ()
[ Final Depth to Water (feet) Number of casing Volumes
Volume, if well evacuated to dryness ()
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-mL Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
[ Du~cateofTW4-12
Signature of Field Technician
~ ,,_ ' //.· -: ./ ---J {~:.,, ...... ~ -r_.r--. -•-~~c..) -,...,.-·_
Groundwater Discharge Permit
~·. B· ·. _.·. ~\-· y~ .. t ,·. ~ ... ,, -7
; .
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-70 Sampling P~gram
Field Sample ID TW4-70 12082022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time
Sample Date & Time 12/8/2022 8:36 !sampler TH/DL
Purging Equipment Weather Conditions
Pump Type External Ambient Temperature ()
Purging Method Previous Well Sampled
Casing Volume ()
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 Well Depth (ft)
pH Buffer 4.0 Well Casing Diameter()
Specific Conductance O Depth to Water Before Purging (ft)
DatefTime Gallons Purged Conductivity pH Temp Redox Turbidity Dissolved_Oxygen I Before/After
Pumping Rate Calculations
[volume of wateI_purged Q Flow Rate (Q = S/60) ()
Time to evacuate 2 Casing Volumes () I Final Depth to Water (feet) Number of casing Volumes
Volume, if well evacuated to dryness()
Name of Certified AnalyticaL Lal>~atory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y
Comments: I Duplicate of TW4-09
Signature of Field Technician
_:=') ,,,,,,._,, ___ -/;/ -(/1/.;)
Groundwater Discharge Permit -'£, ~-<:.~s·· /··. ,_ .• •· ~y~ r ...,.,:.41 r -•
--' .~ ',
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-75 Sa"!pling Program
Field Sample ID TW4-75 12092022 !:>ampling Event 2022 Q4 Chloroform
Purge Date & Time
Sample Date & Time 12/9/2022 10:35 !sampler TH/DL
Purging Equipment Weather Conditions
Pump Type External Ambient Temperature O
Purging Method Previous Well Sampled
Casing Volume ()
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 Well Depth (ft)
pH Buffer 4.0 Well Casing Diameter O
Specific Conductance O Depth to Water Before Purging (ft)
Dissolved
Date!Time Gallons Purged Conductivity pH Temp Redox Turbidity _Qlcygen I Before/After
Pumping Rate Calculations
!Volume of water purged O Flow Rate (Q = S/60) ()
I Final Depth to Water (feet)
Time to evacuate 2 Casing Volumes ()
Number of casing Volumes
Volume, if well evacuated to dryness O
Name of Certified Analytical Laboratory
AWSL
Aria!~cal Sameles Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H25O4 (pH<2), 4 Deg C y
Comments: I Duplicate of TW4-18
Signature of Field Technician
~ '; /;;/ ...__J ,,,r.,·~c.--•.r;r--'/,.;;.,:'.,~~ -//
Groundwater Discharge Permit <:~e--· El r ~.--;;.1,--/..---. .. . ~,,..~
--~ ' --__ ""l'
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-01 Sampling Progra111_ Chloroform Monitoring
Field Sample ID TW4-0l 11302022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 11/30/2022 9:52
Sample Date & Time 11/30/2022 9:52 jsampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 0
Purging Method 2 Casings Previous Well Sampled MW-04
Casing Volume (gal) 6.49
Calculated Casing Volumes Purge Duration O
pH Buffer 7.0 7.0 Well Depth (ft) 111.30
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 101.35
Conductivity Dissolved
DatefTime Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
11/30/2022 9:51 2348 6.95 13.49 325 0 83.0
Pumping Rate Calculations
!Volume of water purged O Flow Rate (Q = S/60) (gal/min) 13.00
Time to evacuate 2 Casing Volumes () I Final Dep!h to \Vater (feet) 108.88 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory_
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-mL Poly u None N
Nitrate/nitrite as N y WATER 1 250-mL HOPE u H2S04 (pH<2), 4 Deg C y
Comments: I Arrived on site at 0948. Samples collected at 0952. Water was clear. Left site at 0954.
Signature of Field Technician
~ . _,/ .; / .______Jc,,:_,,.,._'--,,1-;1"--, z d.',?)
r
(~-
;,---~ _· . e~~,;FVELS
Location ID
Field Sample ID
Purge Date & Time
Sample Date & Time
Purging Equipment
Pump Type
Purging Method
Casing Volume (gal}
Calculated Casing Volumes Purge Duration ()
pH Buffer 7 .0
pH Buffer 4.0
Specific Conductance (micromhos)
Date/Time Gallons Purged
11/30/2022 9:35
[volume of water purged ()
[Final Dept.i, to Water (feet)
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Type of Sample/Analysis
VOCs-Chloroform
Chloride
Nitrate/nitrite as N
Comments:
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
TW4-02 Sampling Program Chloroform Monitoring
TW4-02 11302022 Sampling Event 2022 Q4 Chloroform
11/30/2022 9:35
11/30/2022 9:36 [sampler TH/DL
Pump Weather Conditions Sunny
Grundfos External Ambient Temperature (C) -1
2 Casings Previous Well Sampled TW4-11
14.68
7.0 Well Depth (ft) 120.90
4.0 Well Casing Diameter (in} 4
1000 Depth to Water Before Purging (ft} 98.41
Conductivity Dissolved
(umhos/cm} pH (pH Units) Temp (deg C} Redox (mV} Turbidity (NTU} Oxygen(%} Before/After
3887 6.70 12.80 335 0 83.0
Pumping f!ate Calculat!ons
Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes ()
116.20 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Sample Container Preservative
Collected? Matrix Number Type Sample Filtered? Type Added?
y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
y WATER 1 500-ml Poly u None N
y WATER 1 250-ml HDPE u H2SO4 {pH<2), 4 Deg C y
[ Arrived on site at 0932. Samples collected at 0936. Water was clear. Left site at 0938.
Signature of Field Technician
---,__ , //,· -: / -------1 ,, '.,,.·~c.--.,../· ·c --d.',_;)
~F-:::----~, ~--~ --~j
Location ID
Field Sample ID
Purge Date & Time
Sample Date & Time
Purging Equipment
Pump Type
Purging Method
Casing Volume (gal)
Calculated Casing Volumes Purge Duration (min)
pH Buffer 7.0
pH Buffer 4.0
Specific Conductance (micromhos)
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
TW4-03 Sampling Program Chloroform Monitoring
TW4-03 12072022 Sampling Event 2022 Q4 Chloroform
12/6/2022 7:59
12/7/2022 7:34 [sampler TH/DL
Pump Weather Conditions Cloudy
Grundfos External Ambient Temperature (C) 0
2 Casings Previous Well Sampled TW4-03R
49.00
8.91
7.0 Well Depth (ft) 140.30
4.0 Well Casing Diameter (in) 4
1000 Depth to Water Before Purging (ft) 65.25
Conductivity pH (pH Dissolved
DatefTime Gallons Purged (gal) (umhos/cm) Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/6/2022 8:05 69.66 1905 6.56 14.46 493 2.2 80.0
12/7/2022 7:34 1841 6.26 15.15
12/7/2022 7:35 1849 6.30 15.10
Pumping Rate Calculations
[volume of water purged (gals) 69.66 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min)
[Final Depth to Water (feet) 137.12 Number of casing Volumes
Volume, if well evacuated to dryness (gals)
Name of Certified Analytical Laborat~ry
AWSL
Analyticc1I_ ganiples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C
Chloride y WATER 1 500-ml Poly u None
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C
Comments:
Arrived on site at 0754. Purge began at 0759. Purged well for a total of 6 minutes and 20 seconds. Purged well dry. Water was clear. Purge ended at 0805. Left site at 0809.
Arrived on site at 0729. Depth to water was 65.62. Samples bailed and collected at 0734. Left site at 0736.
Signature of Field Technician
~ --'./ --.___). ''"··-~-,+-:_..!. -(,(;'.-/."/)
Before
After
11.00
6.33
1.42
69.66
Added?
y
N
y
Groundwater Discharge Permit
7 1?1 EaJERGY~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-04 Sampling Program Chloroform Monitoring
Field Sample ID TW4-04 11302022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 11/30/2022 10:06
Sample Date & Time 11/30/2022 10:07 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 0
Purging Method 2 Casings Previous Well Sampled TW4-41
Casing Volume (gal) 18.66
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 7.0 Well Depth (ft) 114.50
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 85.92
Dissolved
DatefTime Gallons Purged Conductivity (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
11/30/2022 10:06 2424 7.03 14.07 313 0 113.0
Pumping Rate Calculations
[volum~ of water purged Q Flow Rate (Q = S/60) (gal/min) 16.00
I Final Depth to yva!er (feet) 106.37
Time to evacuate 2 Casing Volumes ()
Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical _Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y
Comments: I Arrived o_r:i_si!e at 1003. Samples collected at 1007. Water was clear. Left site at 1009.
Signature of Field Technician
~-' ,,,,,._ .. ,_ -/-/---:2 ~0 )
Groundwater Discharge Permit
~ r-. -·, Y B ~.-~ Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-05 Sampling Program Chloroform Monitoring
Field Sample ID TW4-05 12082022 Sampling Even! 2022 Q4 Chloroform
Purge Date & Time 12/7/2022 13:56
Sample Date & Time 12/8/2022 8:45 [sampler TH/DL
Purging Equipment Pump Weather Conditions Raining
Pump Type Grundfos External Ambient Temperature (C) 7
Purging Method 2 Casings Previous Well Sampled TW4-09
Casing Volume (gal) 32 .04
Calculated Casing Volumes Purge Duration (min) 5.82
pH Buffer 7.0 7.0 Well Depth (ft) 121.85
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 72.77
Conductivity Dissolved
Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/7/2022 14:00 44.00 1641 6.31 15.32 611 3.0 65.0
12/7/2022 14:01 55.00 1627 6.33 15.34 606 3.2 64.2
12/7/2022 14:02 66.00 1621 6.36 15.35 603 3.3 63.0
12/7/2022 14:03 77.00 1608 6.39 15.36 600 3.4 62.0
Pumping Rate Calculations
[volul'Tle <>_f water purged (gals) 77.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 7.00
[Final Depth to Water (feet) 73.95 Number of casing Volumes 2.00
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory_
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1352. Purge began at 1356. Purged well for a total of 7 minutes. Purge ended at 1403~Water was clear. Left site at 1405.
Ar_rive_d _9n_site at 0841 . Depth to water was 73.05. Samples bailed and collected at 0845. Left site at 0~46.
Signature of Field Technician
----.. '' .,/-::/ ...____) _,, ,_,,.. __ ,_ -r ;-"--~ I.' d.'?)
Groundwater Discharge Permit
< ~~~~· -t,:;:' -r c_· /
-.·_ -, .--. , E:/"vE'RGY~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-06 Sameli11_g Program Chloroform Monitoring
Field Sample ID TW4-06 12082022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/7/2022 10:59
Sample Date & Time 12/8/2022 8:17 !sampler TH/DL
Purging Equipment Pump Weather Conditions Raining
Pump Type Grundfos External Ambient Temperature (C) 7
Purging Method 2 Casings Previous Well Sampled TW4-34
Casing Volume (gal) 12.76
Calculated Casing Volumes Purge Duration (min) 2.32
pH Buffer 7.0 7.0 Well Depth (ft) 99.60
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 80.05
Conductivity Dissolved
DatefTime Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/7/2022 11:00 11.00 3937 6.17 14.15 575 47.0 6.0
12/8/2022 8:17 3938 6.50 13.45
12/8/2022 8:18 3940 6.51 13.50
Pumping Rate Calculations
[volu_l!le o! water purged (gals) 11.00 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min) I Final Depth to Water (feet) 94.57 Number of casing Volumes
Volume, if well evacuated to dryness (gals)
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C
Chloride y WATER 1 500-mL Poly u None
Nitrate/nitrite as N y WATER 1 250-mL HDPE u H2SO4 (pH<2), 4 Deg C
Comments:
Arrived on site at 1055. Purge began at 1059. Purged well tor a total of 1 minute. Purged well dry. Water was a little murky. Purge ended at 1100. Left site at 1104.
Arrived on site at 0813. D_epth to water was 80.52. Samples bailed and collected at 0817. Left site at 0819.
Signature of Field Technician
~ ,,,,,.--~--!-~f-(i~,
Before
After
11.00
1.00
0.86
11.00
Added?
y
N
y
Groundwater Discharge Permit
,::.r:. ,.--e -:-. F-·· ',· -~ . . ' . / ' .· .Ei'V'ERGY~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-07 Sampling Program C:hloroform Monitoring
Field Sample ID TW4-07 12092022 Sampling_Event 2022 Q4 Chloroform
Purge Date & Time . 12/8/2022 12:55
Sample Date & Time 12/9/2022 12:30 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 5
Purging Method 2 Casings Previous Well Sampled TW4-29
Casing Volume (gal) 25.21
Calculated Casing Volumes Purge Duration (min) 4.58
pH Buffer 7.0 7.0 Well Depth (ft) 121.00
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 82.38
Conductivity pH(pH Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/8/2022 12:59 49.50 1714 6.10 14.84 551 30.0 34.3
12/9/2022 12:30 1699 6.48 13.45
12/9/2022 12:31 1709 6.50 13.54
[volume of water purged (gals)
F>_umping Rate Calculations
49.50 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 4.50
[Final Depth to Water__(feet) 117.48 Number of casing Volumes 1.96
Volume, if well evacuated to dryness (gals) 49.50
Name of Certified Analytical Laboratory
AWSL
Analytical Samples lnfqrmation
Sample Container Preservative
Type of Sample/ Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1251. Purge began at 1255. Purged well for a total of 4 minutes and 30 seconds. Purged well dry. Purge ended at 1259. Water was mostly clear. Left site at 1302.
Arrived on site at 1224. Depth to water was 84.26. Samples bailed and collected at 12:30. Left site at 1233.
Signature of Field Technician
~ .!-,l _/>;ct' ----> ~,J ---,/)~•--<---.. .,, , _/.. ~ .. _;:::.)
Before
After
Groundwater Discharge Permit
r .--tF--. y-~,-.. · r_,~ E:#VERG'Y~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-08 Sampling_Program Chloroform Monitoring
Field Sample ID TW4-08 12082022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/7/2022 14:26
Sample Date & Time 12/8/2022 8:53 [sampler TH/DL
Purging Equipment Pump Weather Conditions Raining
Pump Type Grundfos External Ambient Temperature (C) 7
Purging Method 2 Casings Previous Well Sampled TW4-05
Casing Volume (gal) 27.07
Calculated Casing Volumes Purge Duration (min) 4.92
pH Buffer 7.0 7.0 Well Depth (ft) 126.20
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 84.74
Conductivity Dissolved
Dateffime Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/7/2022 14:29 33.00 4740 6.14 14.94 592 0 1.5
12/7/2022 14:30 44.00 4741 6.16 14.96 590 0 1.1
12/7/2022 14:31 55.00 4740 6.18 14.97 588 0 1.2
12/7/2022 14:32 66.00 4738 6.20 14.97 586 0 1.2
Pumping Rate Calculations
[volume of water purged (gals) 66.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 6.00
[ Final Depth to Water (feet) 91.45 Number of casing Volumes 2.00
Volume, if well evacuated to dryness O 0
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H25O4 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1422. Purge began at 1426. Purged well for a total of'6 minutes. Purge ended at 1432. Water was clear. Left site al 1435.
Arrived on site at 0849. Depth to water was 85.20. Samples bailed and collected at 0853. Left site at 0854. _ _ __
Signature of Field Technician
~ ',:,:,•~:.--/~"--(:2·;0)
Groundwater Discharge Permit ----~'F--' Ye , ~Y#<UELS
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-09 !:iampling Program Chloroform Monitoring
Field Sample ID TW4-09 12082022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/7/202213:24
Sample Date & Time 12/8/2022 8:36 I sampler TH/DL
Purging Equipment Pump Weather Conditions Raining.
Pump Type Grundfos External Ambient Temperature (C) 7
Purging Method 2 Casings Previous Well Sampled TW4-27
Casing Volume (gal) 32.14
Calculated Casing Volumes Purge Duration (min) 5.84
pH Buffer 7.0 7.0 Well Depth (ft) 120.10
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 70.87
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/7/2022 13:28 44.00 2509 6.13 14.99 613 24.0 1.3
12/7/2022 13:29 55.00 2504 6.12 15.00 610 26.0 1.1
12/7/2022 13:30 66.00 2504 6.12 15.01 606 27.0 1.0
12/7/2022 13:31 77.00 2500 6.14 15.02 601 28.0 1.0
Pumping Rate Calculations I Volume of wat~I' purged (gals) 77.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 7.00 I Final ~ep!h !o Water (feet) 71.97 Number of casing Volumes 2.00
Volume, if well evacuated to dryness () 0
Name of Certified Analytic_!:11 Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-mL Poly u None N
Nitrate/nitrite as N y WATER 1 250-mL HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1320. Purge began at 1324. Purged well for a total of 7 minutes. Purge ended at 1331. Water was a little murky. Left site at 1334.
Arrived on site at 0832. Depth to water was 71.11. Samples bailed and colle~ted at 0836. Left site at 0839.
Signature of Field Technician
~ , , '"··-~ -/-·/ -_/;~~;)
Groundwater Discharge Permit
--~.e-·-~-:. JF-·-· .. (' ...
•. ~y~ ./ ,-
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-10 Sampling Program Chloroform Monitoring
Field Sample ID TW4-10 12092022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/8/2022 11:41
Sample Date & Time 12/9/2022 11:58 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 3
Purging Method 2 Casings Previous Well Sampled TW4-16
Casing Volume (gal) 27.88
Calculated Casing Volumes Purge Duration (min) 5.06
pH Buffer 7.0 7.0 Well Depth (ft) 113.20
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 70.50
Conductivity pH(pH Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/8/2022 11:44 38.50 2861 5.90 14.70 570 21.0 29.0
12/9/2022 11:58 2595 6.01 13.55
12/9/2022 11:59 2605 6.04 13.61
Pumping Rate Calculations
[volume of water purged (g_alsl 38.50 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 3.50
[ Final Depth to Water (feet) 109.24 Number of casing Volumes 1.38
Volume, if well evacuated to dryness (gals) 38.50
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1137. Purge began at 1141. Purged well for a total of 3 minutes and 30 seconds. Purged well dry. Purge ended at 1144. Water was a little murky. Left site at 1147.
Arrived on site at 1152. Depth to water was 70.32. Sa,mples bailed and collected at 1158. Left site at 1201 .
Signature of Field Technician
~ ,,,,, •. ,~ -!-;,; __ (;-~)
Before
After
?2 ··. ' -e~y~
Location ID
Field Sample ID
Purge Date & Time
Sample Date & Time
Purging Equipment
Pump Type
Purging Method
Casing Volume (gal)
Calculated Casing Volumes Purge Duration O
pH Buffer 7.0
pH Buffer 4.0
Specific Conductance (micromhos)
DatefTime Gallons Purged
11/30/2022 9:29
[volume of water purged ()
I Final Depth to Water (feet)
Name of Certified Analytical Laboratory
AWSL
Anal}'ti~al Samples Information
Type of Sample/Analysis
VOCs-Chloroform
Chloride
Nitrate/nitrite as N
Comments:
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
TW4-11 Sampling Program Chloroform Monitoring
TW4-11 11302022 Sampling Event 2022 Q4 Chloroform
11/30/2022 9:29
11/30/2022 9:30 !sampler TH/DL
Pump Weather Conditions Sunny
Grundfos External Ambient Temperature (C) -1
2 Casings Previous Well Sampled MW-26
8.43
7.0 Well Depth (ft) 102.40
4.0 Well Casing Diameter (in) 4
1000 Depth to Water Before Purging (ft) 89.49
Dissolved
Conductivity (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
3750 6.67 14.10 351 0 86.5
Pumping Rate Calculations
Flow Rate {Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes ()
100.23 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Sample Container Preservative
Collected? Matrix Number Type Sample Filtered? Type Added?
y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
y WATER 1 500-mL Poly u None N
y WATER 1 250-mL HDPE u H2SO4 (pH<2), 4 Deg C y
I Arrived on site at 0925. Samples collected at 0930. Water was clear. Left site at 0932.
Signature of Field Technician
~ . /';/ ...____J , , '"''· <--__ ,,../--,/.d ;fa)
~ ,..,
j
.--. .. e~y~
Location ID
Field Sample ID
Purge Date & Time
Sample Date & Time
Purging Equipment
Pump Type
Purging Method
Casing Volume (gal)
Calculated Casing Volumes Purge Duration (min)
pH Buffer 7.0
pH Buffer 4.0
Specific Conductance (micromhos)
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
TW4-12 Sampling Program Chloroform Monitoring
TW4-12 12072022 Sampling Event 2022 Q4 Chloroform
12/6/2022 9:06
12/7/2022 7:55 [sampler TH/Dl
Pump Weather Conditions Cloudy
Grundfos External Ambient Temperature (C) 1
2 Casings Previous Well Sampled TW4-42
30.69
5.58
7.0 Well Depth (ft) 103.20
4.0 Well Casing Diameter (in) 4
1000 Depth to Water Before Purging (ft) 56.20
Conductivity pH (pH Dissolved
Date!Time Gallons Purged (gal) (umhos/cm) Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/6/2022 9:09 38.50 1698 5.79 14.50 562 0 29.0
12/7/2022 7:55 1620 6.78 13.50 Before
12/7/2022 7:59 1616 6.79 13.60 After
Pumping Rate Calculations
!Volume of water purged(gals) 38.50 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 3.50 I Final Depth to Water (feet) 100.01 Number of casing Volumes 1.25
Volume, if well evacuated to dryness (gals) 38.50
Name of Certified Analytical Laboratory
AWSL
Analyticl!I Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 0902. Purge began at 0906. Purged well for a total of 3 minutes and 30 seconds. Purged well dry. Purge ended at 0909. Water was clear. Left site at 0914.
Arrived on site at 0750. Depth to water was 56.41 . Samples bailed and collected at 0755. Left s~e at _0800. ___________________ _
Signature of Field Technician
__ --=:') ~ I ••i 1.,• ~ --.~;£•. -~ s✓.--;)
Groundwater Discharge Permit ~-e-',~,_~-)--.-~
. ,• ' ~y ,. / I ~ r ,.
-=--··.
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-13 Sampling Program Chloroform Mo11itoring
Field Sample ID TW4-13 12072022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/6/2022 10:59
Sample Date & Time 12/7/2022 8:22 !sampler TH/DL
Purging Equipment Pump Weather Conditions Raining
Pump Type Grundfos External Ambient Temperature (C) 7
Purging Method 2 Casings Previous Well Sampled TW4-32
Casing Volume (gal) 31.51
Calculated Casing Volumes Purge Duration (min) 5.72
pH Buffer 7.0 7.0 Well Depth (ft) 105.70
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 57.44
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/6/2022 10:03 44.00 2130 6.29 14.79 564 6.9 84.0
12/7/2022 8:22 2130 6.97 13.30 Before
12/7/2022 8:23 2136 6.95 13.38 After
!Volume of water purgeciJgals} 44.00
Pumpi11.9 Rate Calculations
Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 4.00
[Final Depth to Water (feet) 103.06 Number of casing Volumes 1.39
Volume, if well evacuated to dryness (gals) 44.00
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1055. Purge began at 1059. Purged well for a total of 4 minutes. Purged well dry. Purge ended at 1103. Water was clear. Left site at 1105.
Arrived on site at 0818. Depth_ to water was 57.60. Samples bailed and collected at 0822. Left site at 0824.
Signature of Field Technician
------. ~ J .. / ,,,,
..____'_) , , '''•' ✓(_,. ._,-/• / (;_ ~ •' L \ -//
Groundwater Discharge Permit
<:--· ~"•' -~~ ,-..=-,--~y~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-14 Sampling Program Chlorofo~m Monitoring
Field Sample ID TW4-14 12082022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/7/2022 9:58
Sample Date & Time 12/8/2022 8:00 lsami:,l_e__l' TH/DL
Purging Equipment Pump Weather Conditions Raining
Pump Type Grundfos External Ambient Temperature (C) 6
Purging Method 2 Casings Previous Well Sampled TW4-38
Casing Volume (gal) 11.65
Calculated Casing Volumes Purge Duration (min) 2.11
pH Buffer 7.0 7.0 Well Depth (ft) 95.10
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 77.25
Conductivity pH(pH Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/7/2022 9:59 14.66 5454 5.65 14.26 547 36.0
12/8/2022 8:00 5513 6.15 15.05
12/8/2022 8:01 5521 6.16 15.01
Pumping Rate Calculations
!volume of water purged (gals) 14.66 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min)
[ Final Depth to Water (feet) 92.89 Number of casing Volumes
Volume, if well evacuated to dryness (gals)
Name of Certified Analytical Laboratory
AWSL
Anl!!~cal Saf!l_ples Information
Sample Container
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C
Chloride y WATER 1 500-ml Poly u None
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C
Comments:
Arrived on site at 0954. Purge began at 0958. Purged well for a total of 1 minute and 20 seconds. Purged well dry. Purge ended at 0959. Left site at 1003.
Arrived on site at 0756. Depth to water was 77.37. Samples bailed and collected at 0800. Left site at 0802.
Signature of Field Technician
~ , . ,/--: / -..___) , , ,,,.,. ~"---.-f· --~ ,'. d.<""J
90.5
Before
After
11.00
1.33
1.25
14.66
Preservative
Added?
y
N
y
Groundwater Discharge Permit
•r
i eF-,,~ Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-16 Sampling Program Chloroform Monitoring
Field Sample ID TW4-16 12092022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/8/2022 11:02
Sample Date & Time 12/9/2022 11:45 jsampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 3
Purging Method 2 Casings Previous Well Sampled TW4-30
Casing Volume (gal) 47.70
Calculated Casing Volumes Purge Duration (min) 8.67
pH Buffer 7.0 7.0 Well Depth (ft) 147.60
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 74.55
Conductivity Dissolved
Dateffime Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/8/2022 11:09 77.00 3870 6.20 14.70 483 37.0 5.5
12/8/2022 11:10 88.00 3915 6.30 14.71 482 35.0 5.0
12/8/2022 11:11 99.00 3823 6.34 14.72 479 34.0 4.8
12/8/2022 11:12 110.00 3688 6.40 14.73 476 33.0 4.7
I Volume of water purged (gals)
Pump!ng Rate Calcul~ions
110.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 10.00
jFinal Depth to Wate_r_(feet) 99.45 Number of casing Volumes 2.00
Volume, if well evacuated to dryness() 0
Name of Certified Analytical Laboratory
AWSL
Analytical Samp!E!s Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1058. Purge began at 1102. Purged well for a total of 10 minutes. Purge ended at 1112. Water was mostly clear. Left site at 1115.
Arrived on site at 1140 depth to water was 74.40. Samples bailed and collected at 1145. Left site at 1147.
Signature of Field Technician -----, . ./;,--: ./ ....._____)_,,c,,.·~c--··r--;,<. ·:._,r, <-;>)
Groundwater Discharge Permit
?e'F-,,--= Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-18 Samplil'l_g Pr~gra111_ Chloroform Monitoring
Field Sample ID TW4-18 12092022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/8/2022 9:57
Sample Date & Time 12/9/2022 10:35 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 2
Purging Method 2 Casings Previous Well Sampled TW4-33
Casing Volume (gal) 40.90
Calculated Casing Volumes Purge Duration (min) 7.43
pH Buffer 7.0 7.0 Well Depth (ft) 136.90
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 74.26
Conductivity Dissolved
DatefTime Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/8/2022 10:03 66.00 1961 6.18 15.46 581 33.0 10.4
12/8/2022 10:04 77.00 1949 6.23 15.47 576 31.0 10.3
12/8/2022 10:05 88.00 1912 6.26 15.48 573 31.0 10.7
12/8/2022 10:06 99.00 1870 6.30 16.48 570 30.0 11.0
Pumping Rate Calculations I Volume of water purged (gals) 99.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 9.00 I Final Depth to Water (feet) 75.88 Number of casing Volumes 2.00
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
Arrived on site at 0953. Purge began at 0957. Purged well for a total of 9 minutes. Purge ended at 1006. Water was mostly clear. Left site at 1009.
Arrived on site at 1029. Depth to water was 74.11 . Samples bailed and collected at 1035. Left site at 1040.
Signature of Field Technician
~ . /. //-
---.) f' r J'!;,• ... ~.,-;t-; • -_./.,, ;(:..•5)
·._,,...--t£,, .y. ,-~ .·· \ . . ' ' . /, . . . --B ~.-~
Location ID
Field Sample ID
Purge Date & Time
Sample Date & Time
Purging Equipment
Pump Type
Purging Method
Casing Volume (gal)
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0
pH Buffer 4.0
Specific Conductance (micromhos)
Date!Time Gallons Purged
11/30/2022 8:19
~olume of water purged ()
I Final Depth to Water (feet)
Name of Certified Analytical Laborc1_tory
AWSL
Analytical Samples lnforma!ion
Type of Sample/Analysis
VOCs-Chloroform
Chloride
Nitrate/nitrite as N
Comments:
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
TW4-19 Sampling Program Chloroform Monitoring
TW4-19 11302022 Sampling Event 2022 Q4 Chloroform
11/30/2022 8:19
11/30/2022 8:20 !sampler TH/DL
Pump Weather Conditions Clear
Grundfos External Ambient Temperature (C) -5
2 Casings Previous Well Sampled TW4-60
33.06
7.0 Well Depth (ft) 126.86
4.0 Well Casing Diameter (in) 4
1000 Depth to Water Before Purging (ft) 76.23
Conductivity Dissolved
(umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
2579 6.50 14.99 569 0 38.3
Pumping_ Rate Calculations
Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes ()
79.97 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Sample Container Preservative
Collected? Matrix Number Type Sample Filtered? Type Added?
y WATER 3 40mlVOA u HCI {pH<2), 4 Deg C y
y WATER 1 500-ml Poly u None N
y WATER 1 250-ml HDPE u H2SO4 {pH<2), 4 Deg C y
[Arrived on site at 0815. Samples collected at 0820. Water was clear. Left site at 0823.
Signature of Field Technician
~ ,·/>;/ -..__) .-~:Jl-4'' ... ~--.r;.-e--:_G, .-,-6~)
Groundwater Discharge Permit
;r····~e: ,.,-: · .. El. ,'
. r ~y~ ."~ ~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-21 Samplin_g Program Chloroform Monitoring
Field Sample ID TW4-21 11302022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 11/30/2022 8:34
Sample Date & Time 11/30/2022 8:35 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) -5
Purging Method 2 Casings Previous Well Sampled TW4-19
Casing Volume (gal) 30.48
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 7.0 Well Depth (ft) 118.80
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 72.11
Conductivity Dissolved
DatefTime Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
11/30/2022 8:34 2713 6.51 15.57 457 0 34.0
Pumping Rate Calculations
[volume of water purged() Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes ()
[ Final Depth to Water (feet) 77.47 Number of casing Volumes
Volume, if well evacuated to dryness() 0
r,J3.me of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
[~Hived on s~e at 0831 . Samples collected at 0835. Water was clear. Left site at 0837.
Signature of Field Technician
~ ,, er.,·,~--/--;/-,:'/:~)
~~.,~
.._-,-~YFUELS
Location ID
Field Sample ID
Purge Date & Time
Sample Date & Time
Purging Equipment
Pump Type
Purging Method
Casing Volume (gal)
Calculated Casing Volumes Purge Duration ()
pH Buffer 7 .0
pH Buffer 4.0
Specific Conductance (micromhos)
DatelTime Gallons Purged
11/30/2022 9:01
[volume of water purged()
I Final Depth to Water (feet)
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Type of Sample/Analysis
voes-Chloroform
Chloride
Nitrate/nitrite as N
Comments:
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
TW4-22 Sampling Program Chloroform Monitoring
TW4-22 11302022 Sampling Event 2022 Q4 Chloroform
11/30/2022 9:01
11/30/2022 9:02 [sampler TH/DL
Pump Weather Conditions Sunny
Grundfos External Ambient Temperature (C) -4
2 Casings Previous Well Sampled TW4-24
29.26
7.0 Well Depth (ft) 114.70
4.0 Well Casing Diameter (in) 4
1000 Depth to Water Before Purging (ft) 69.89
Conductivity Dissolved
(umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
4899 6.12 15.90 465 0 20.5
Pumping Rate Calculations
Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes ()
93.24 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Sample Container Preservative
Collected? Matrix Number Type Sample Filtered? Type Added?
y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y
y WATER 1 500-ml Poly u None N
y WATER 1 250-ml HOPE u H2504 (pH<2), 4 Deg C y
[Arrived on site at 0858. Samples collected at 0902. Water was clear. Left site at 0904.
Signature of Field Technician
--'\ . ./ ,; /
------.) J, '"•' ·"-~ +,:J. -~ /, d.?:)
<'"
. / . . ,,,,. ... , --e ---.-. tF-·\ --"
• 1 _' -,?_-•· ~y~
Location ID
Field Sample ID
Purge Date & Time
Sample Date & Time
Purging Equipment
Pump Type
Purging Method
Casing Volume (gal)
Calculated Casing Volumes Purge Duration (min)
pH Buffer 7 .0
pH Buffer 4.0
Specific Conductance (micromhos)
DatefTime Gallons Purged (gal)
12/6/2022 14:11 33.00
12/6/2022 14:12 44.00
12/6/2022 14:13 55.00
12/6/2022 14:14 66.00
[volume of water purged (gals)
[Final Depth to Water (feet)
Name of Certified Analytical L_~~ratory
AWSL
Analytical Samples Information
Type of Sample/Analysis
VOCs-Chloroform
Chloride
Nitrate/nitrite as N
Comments:
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
TW4-23 Sampling Program Chloroform Monitoring
TW4-23 12072022 Sampling Event 2022 Q4 Chloroform
12/6/2022 14:03
12/7/2022 9:07 I sampler I TH/DL
Pump Weather Conditions Cloudy
Grundfos External Ambient Temperature (C) 8
2 Casings Previous Well Sampled TW4-35
26.05
4.73
7.0 Well Depth (ft) 116.40
4.0 Well Casing Diameter (in) 4
1000 Depth to Water Before Purging (ft) 76.50
Conductivity Dissolved
(umhos/cm) pH (pH Units) Temp {deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
3502 6.37 14.38 345 5.0 5.3
3515 6.40 14.40 333 2.6 4.8
3496 6.45 14.40 321 2.5 4.8
3503 6.47 14.32 310 2.5 5.0
Pumping Rate Calculations
66.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 6.00
93.47 Number of casing Volumes 2.00
Volume, if well evacuated to dryness() 0
Sample Container Preservative
Collected? Matrix Number Type Sample Filtered? Type Added?
y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
y WATER 1 500-mL Poly u None N
y WATER 1 250-mL HDPE u H2SO4 (pH<2), 4 Deg C y
Arrived on site at 1403. Purge began at 1408. Purged well for a total of 6 minutes. Purge ended at 1414. Water had an orange coloration. Left site at 1417.
Arrived on_site at 0903. Depth to ,,.,,ater lfvas 76.66. Samples bailed and collected at 0907. Left site at 0908. Raining_ at time of sampli_rlg.
Signature of Field Technician
~ .. /.--;, ./ -------) ,, ,,,___. -"----f--:,-"--,: /, ~'.-"')
I
Groundwater Discharge Permit ~eF-,,~ Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-24 Sampling Program Chloroform Monitoring
Field Sample ID TW4-24 11302022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 11/30/2022 8:54
Sample Date & Time 11/30/2022 8:55 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) -4
Purging Method 2 Casings Previous Well Sampled TW4-25
Casing Volume (gal) 30.12
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 7.0 Well Depth (ft) 114.80
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 68.67
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
11/30/2022 8:54 3941 6.49 14.99 468 0 19.4
Pumping Rate Calculations
jvolume of water purgE!d O Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes O
[Final Depth to Water (feet) 72.50 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name ~f Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y
Comments: I Arrived on site at 0850. Samples collected at 0855. Water was clear. Left site at 0857.
Signature of Field Technician
~ '/ /;,-;/ ~-" ;:JlJ' .. !__,. ;'~ ·,:_/ •. .:".t.'<)
~----~~ y~ c_-~~~~
Location ID
Field Sample ID
Purge Date & Time
Sample Date & Time
Purging Equipment
Pump Type
Purging Method
Casing Volume (gal)
Calculated Casing Volumes Purge Duration ()
pH Buffer 7 .0
pH Buffer 4.0
Specific Conductance (micromhos)
Date/Time Gallons Purged
11/30/2022 8:44
[volum~ of water purged ()
I Final Depth to Water (feet)
Nam_e of Certified Analytical Laboratory
AWSL
AnaJytical Samples Information
Type of Sample/Analysis
voes-Chloroform
Chloride
Nitrate/nitrite as N
Comments:
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
TW4-25 Sampling Program Chloroform Monitoring
TW4-25 11302022 Sampling Event 2022 Q4 Chloroform
11/30/2022 8:44
11/30/2022 8:45 [sainpier TH/DL
Pump Weather Conditions Sunny
Grundfos External Ambient Temperature (C) -4
2 Casings Previous Well Sampled TW4-21
43.54
7.0 Well Depth (ft) 136.70
4.0 Well Casing Diameter (in) 4
1000 Depth to Water Before Purging (ft) 70.02
Conductivity Dissolved
(umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
2563 6.75 15.00 465 0 32.0
Pumping Rate Calculations
Flow Rate (Q = S/60) (gal/min) 12.00
Time to evacuate 2 Casing Volumes ()
83.12 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Sample Container Preservative
Collected? Matrix Number Type Sample Filtered? Type Added?
y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
y WATER 1 500-ml Poly u None N
y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y
[Arrived on site at 0841 . Samples collected at 0845. Water was clear. Left site at 0847.
Signature of Field Technician
--------._ ' . /·,; ./
-----..) , , C,!."-C--•-;,'• ->✓--£:,..S·)
Groundwater Discharge Permit
r ~::~~~ r ~L7,--~y~ Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-26 Sampling Program Chloroform Monitoring
Field Sample ID TW4-26 12092022 Sameling_ Event 2022 Q4 Chloroform
Purge Date & Time 12/8/2022 13:30
Sample Date & Time 12/9/2022 12:42 jsampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 5
Purging Method 2 Casings Previous Well Sampled TW4-07
Casing Volume (gal) 8.22
Calculated Casing Volumes Purge Duration (min) 1.49
pH Buffer 7.0 7.0 Well Depth (ft) 87.70
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 75.10
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/8/2022 13:31 8.25 4620 6.12 14.31 516 7.0 78.9
12/9/2022 12:42 4706 6.67 13.58 Before
12/9/2022 12:43 4717 6.69 13.60 After
Pumping Rate Calculations
jvolume of water purged (gals) 8.25 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 0.75
!Final Depth to Water (feet) 85.01 Number of casing Volumes 1.00
Volume, if well evacuated to dryness (gals) 8.25
Nan,__e of Certified Analytical Laboratory
AWSL
Analytical Sa!llples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H25O4 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1326. Purge began at 1330. Purged well for a total of 45 seconds. Purged well dry. Water was clear. Purge ended at 1330. Left site at 1333.
Arrived _on site at 1235. Depth to water was 75.21. Samples bailed and collected at 1242. Left site at 1245. _________ _
Signature of Field Technician
------.,, , ·. / ;-: /
-.__) ~,,:.1!,.,' ... ~-.~.;L •. -__ .,.£?)
Groundwater Discharge Permit ("--~e-~ -tF--,,,,. ... · .-/; .· ,-.·
·-__ r .. · ~Y~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-27 Sampling Program Chloroform Monitoring
Field Sample ID TW4-27 12082022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/7/2022 12:42
Sample Date & Time 12/8/2022 8:26 !sampler TH/DL
Purging Equipment Pump Weather Conditions Raining
Pump Type Grundfos External Ambient Temperature (C) 7
Purging Method 2 Casings Previous Well Sampled TW4-06
Casing Volume (gal) 10.84
Calculated Casing Volumes Purge Duration (min) 1.97
pH Buffer 7.0 7.0 Well Depth (ft) 95.75
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 79.14
Conductivity pH (pH Dissolved
Date/Time Gallons Purged (gal) (um hos/cm) Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/7/2022 12:43 11.00 5281 6.08 14.70 493 36.0 68.0
12/8/2022 8:26 5163 6.30 13.50 Before
12/8/2022 8:27 5168 6.31 13.56 After
Pumping Rate Calculations
[volume of water purged (gals} 11.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 1.00
!Final Depth to Water (feet) 92.81 Number of casing Volumes 1.01
Volume, if well evacuated to dryness (gals) 11.00
Name of Certified Analytical Laboratory
AWSL
AnalytJca!~amples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-mL Poly u None N
Nitrate/nitrite as N y WATER 1 250-mL HDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1238. Purge began at 1242. Purged well for a total of 1 minute. Purged well dry. Water was a little murky. Purge ended at 1243. Left site at 1246.
Arrived on s~e at 0822. Depth to water was 79.70. Samples bailed and collected at 0826. Left sit~ at _08_2_8_. ____________ _
Signature of Field Technician
------, .· / --: / ------_) , , '"•'--<---_r;/-, -</,_ ,.-/4 ~) -<
t" ~~ .... •.~I ~y~ r-~~.....-~
Location ID
Field Sample ID
Purge Date & Time
Sample Date & Time
Purging Equipment
Pump Type
Purging Method
Casing Volume (gal)
Calculated Casing Volumes Purge Duration (min)
pH Buffer 7.0
pH Buffer 4.0
Specific Conductance (micromhos)
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
TW4-28 Sa_mpling Program
TW4-28 12072022 Sampling Event
12/6/2022 9:41
12/7/2022 8:09 I sampler
Pump Weather Conditions
Grundfos External Ambient Temperature (C)
2 Casings Previous Well Sampled
38.38
6.97
7.0 Well Depth (ft)
4.0 Well Casing Diameter (in)
1000 Depth to Water Before Purging (ft)
Conductivity
Chloroform Monitoring
2022 Q4 Chloroform
TH/DL
Cloudy
4
TW4-12
108.48
4
49.70
Dissolved
DatefTime Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/6/2022 9:45 49.50 1545 6.74 14.69 555 5.9 89.0
12/7/2022 8:09 1556 7.09 13.40
12/7/2022 8:10 1567 7.08 13.51
Pulll.ping Rate Calculations I volume of water purge.<f (gals) 49.50 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min)
[Final Depth to Water (feet) 104.28 Number of casin.g Volumes
Volume, if well evacuated to dryness (gals)
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type
voes-Chloroform y WATER 3 40ml VOA u HCI (pH<2). 4 Deg C
Chloride y WATER 1 500-ml Poly u None
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C
Comments:
Arrived on site at 0937. Purge began at 0941. Purged well for a total of 4 minutes and 30 seconds. Purged well dry. Purge ended at 0945. Water was clear. Left site at 0948.
Arrived on site at 0804. Depth to water was 49.90. Samples bailed and collected at 0809. Left site at 0811.
Signature of Field Technician
~ .· /',;-,✓-:' ...___) ,, c,e,•_cc__, ./-,/--~ /,. "'~<")
Before
After
11.00
4.50
1.28
49.50
Added?
y
N
y
Groundwater Discharge Permit
r:--_____,-:.~------., ~1 .
~,/ • ,.,-.-.•. ·· ~y~ _.._..., -.....
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-29 Sampling Program Chloroform Monitoring
Field Sample ID TW4-29 12092022 ~a"!pling_ Ev_ent 2022 Q4 Chloroform
Purge Date & Time 12/8/2022 12:25
Sample Date & Time 12/9/2022 12:12 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 4
Purging Method 2 Casings Previous Well Sampled TW4-10
Casing Volume (gal) 9.84
Calculated Casing Volumes Purge Duration (min) 1.78
pH Buffer 7.0 7.0 Well Depth (ft) 94.48
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 79.41
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/8/2022 12:26 11.00 4123 6.40 14.43 389 6.2 88.5
12/9/2022 12:12 4052 6.49 13.55 Before
12/9/2022 12:13 4067 6.53 13.62 After
Pumping Rate Calculations
jvolume of water purged (gals) 11.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 1.00
[ Final Depth to Water (feet) 91.37 Number of casing Volumes 1.11
Volume, if well evacuated to dryness (gals) 11.00
Name of Certified Analytical Laboratory
AWSL
A'!3Jytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1221 . Purge began at 1225. Purged well for a total of 1 minute. Purged well dry. Purge ended at 1226. Water was clear. Left site at 1228.
Arrived on site at 1206. Depth to water was 79.26. Samples bailed and collected at 1212. Left site at 1215. _ _________ __ _ __
Signature of Field Technician
~ ,,,,,.·,c--/:;,,-·-(!°:,{:)
Groundwater Discharge Permit
r-e·--~ ~-....-·""' / . /
' ,--~ y ~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-30 Sampling Program Chloroform Monitoring
Field Sample ID TW4-30 12092022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/8/2022 10:35
Sample Date & Time 12/9/2022 10:55 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 3
Purging Method 2 Casings Previous Well Sampled TW4-18
Casing Volume (gal) 11.78
Calculated Casing Volumes Purge Duration (min) 2.14
pH Buffer 7.0 7.0 Well Depth (ft) 93.48
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 75.43
Conductivity pH lPH Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/8/2022 10:36 14.66 4535 5.90 14.69 546 17.3 49.0
12/9/2022 10:55 4496 6.12 13.95
12/9/2022 10:56 4484 6.10 13.98
!Volume of water purged (gals)
Pun,ping Rate Calculations
14.66 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min)
[ Final Depth to Water (feet) 90.37 Number of casing Volumes
Volume, if well evacuated to dryness (gals)
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/ Analysis Collected? Matrix Number Type Sample Filtered? Type
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C
Chloride y WATER 1 500-ml Poly u None
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2S04 (pH<2), 4 Deg C
Comments:
Arrived on site at 1031. Purge began at 1035. Purged well for a total of 1 minute and 20 seconds. Purged well dry. Purge ended at 1036. Water was clear. Left site at 1038.
Arrived on site at 1050. Depth to water was 75.30. Samples bailed and collected at 1055. Left site at 1058.
Signature of Field Technician
~,,.•,.,.•.-c.-..//.;r .. (,)
Before
After
11.00
1.33
1.24
14.66
Added?
y
N
y
Groundwater Discharge Permit ----~ f'; ----'i -~e =v~ Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-31 Sampling Program Chloroform Monitoring
Field Sample ID TW4-31 12072022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/6/2022 12:34
Sample Date & Time 12/7/2022 8:40 [s11_mpler TH/DL
Purging Equipment Pump Weather Conditions Cloudy
Pump Type Grundfos External Ambient Temperature (C) 8
Purging Method 2 Casings Previous Well Sampled TW4-36
Casing Volume (gal) 20.54
Calculated Casing Volumes Purge Duration (min) 3.73
pH Buffer 7.0 7.0 Well Depth (ft) 107.48
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 76.02
Conductivity pH (pH Dissolved
Dateffime Gallons Purged (gal) (umhos/cm) Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/6/2022 12:36 25.66 3771 6.01 15.05 560 16.0 31.0
12/7/2022 8:40 3629 6.91 13.01
12/7/2022 8:41 3640 6.90 13.06
Pumping Rate Calculations I Volume of water purged (gals) 25.66 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 2.33
[ Final Depth to Water (feet) 104.35 Number of casing Volumes 1.24
Volume, if well evacuated to dryness (gals) 25.66
Name of Certified Analytical Laboratory
AWSL
Anal\'!ical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-mL Poly u None N
Nitrate/nitrite as N y WATER 1 250-mL HDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1229. Purge began at 1234. Purged well for a total of 2 minutes and 20 seconds. Purged well dry. Purge ended at 1236. Water was a little murky. Left site at 1237.
_f.rri\fed on site at 0835. Depth to water was 76.17. Samples bailed and collected at 0840. Left site at 0841 .
Signature of Field Technician
~ .. _/,, ,; ✓--.___J _,,: 1-v-<----ff··-_',/,_,...:-?)
Groundwater Discharge Permit f;;,:e-:---. F-\ -. ---,. ' _,?_ ~y~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-32 Sampling Program C:hloroform Monitoring
Field Sample ID TW4-32 12072022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/6/2022 10:20
Sample Date & Time 12/7/2022 8:15 jsampler TH/DL
Purging Equipment Pump Weather Conditions Cloudy
Pump Type Grundfos External Ambient Temperature (C) 5
Purging Method 2 Casings Previous Well Sampled TW4-28
Casing Volume (gal} 37.73
Calculated Casing Volumes Purge Duration (min) 6.86
pH Buffer 7.0 7.0 Well Depth (ft) 114.64
pH Buffer 4.0 4.0 Well Casing Diameter (in} 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 56.86
Conductivity pH(pH Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/6/2022 10:24 44.00 6250 3.70 14.72 505 25.3 0.7
12/6/2022 10:25 55.00 6159 3.70 14.73 501 24.0 0.7
12/6/2022 10:26 66.00 6240 3.71 14.72 499 23.0 0.8
12/6/2022 10:27 77.00 6301 3.72 14.76 498 22.0 0.8
[volume of water purged (gals}
Pump_i_ng Rate Calculations
77.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 7.00 I Final Depth to Water (feet) 99.56 Number of casing Volumes 2.00
Volume. if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Analytical SamplE!S Information
Sample Container Preservative
Type of Sam pie/ Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1016. Purge began at 1020. Purged well for a total of 7 mfnutes-:-Purge ended at 1027. Water was a little murky. Pump and hose had white salt like particles on ii when pulled. Left
site at 1030.
Arrived on site at 0811 . Depth to water was 57 .00. Samples bailed and collected at 0815. Left site at 0816.
Signature of Field Technician
---'\ , . /. >; /
...___)-'., '..,!.J' .-·{._, """f'-;;t. "':__.~ _4-_.../-)
Groundwater Discharge Permit
--~-..,~-' ~B '~,,~ Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-33 Sampling Program Chloroform Monitoring
Field Sample ID TW4-33 12092022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/8/2022 9:27
Sample Date & Time 12/9/2022 10:15 !sampler I TH/DL I
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 1
Purging Method 2 Casings Previous Well Sampled MW-32
Casing Volume (gal) 4.61
Calculated Casing Volumes Purge Duration (min) 0.83
pH Buffer 7.0 7.0 Well Depth (ft) 86.23
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 79.17
Conductivity pH (pH Dissolved
DatefTime Gallons Purged (gal) (umhos/cm) Units) Temp (deg C) Redox (mV) Turbidity Oxygen(%) Before/After
12/8/2022 9:27 3.66 300.1 6.30 8.39 361 84.1
12/9/2022 10:15 4620 6.17 15.17 Before
12/9/2022 10:16 4632 6.23 15.14 After
Pumping Rate Calculations
!volume of water purged (gals) 3.66 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 0.33 I Final Depth to Water (feet) 82.10 Number of casing Volumes 0.79
Volume, if well evacuated to dryness (gals) 3.66
Name of Certified Analytical Laboratory_
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-mL Poly u None N
Nitrate/nitrite as N y WATER 1 250-mL HOPE u H2SO4 (pH<2), 4 Deg C y
Comments:
Signature of Field Technician
~ ,,,,,,•,-:.--,!-;~--_'.';.~~)
Groundwater Discharge Permit z~~,,-= Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-34 Sampling Program Chloroform Monitoring
Field Sample ID TW4-34 12082022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/7/2022 10:30
Sample Date & Time 12/8/2022 8:09 [sampler TH/DL
Purging Equipment Pump Weather Conditions Raining
Pump Type Grundfos External Ambient Temperature (C) 6
Purging Method 2 Casings Previous Well Sampled TW4-14
Casing Volume (gal) 11.85
Calculated Casing Volumes Purge Duration (min) 2.15
pH Buffer 7.0 7.0 Well Depth (ft) 95.74
pH Buffer 4.0 4.0 Well Casing Diameter {in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 77.59
Conductivity pH (pH Dissolved
DatefTime Gallons Purged (gal) (umhos/cm) Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/7/202210:31 16.50 3701 6.29 14.45 510 14.0 37.0
12/8/2022 8:09 3036 6.52 13.57
12/8/2022 8:10 3046 6.53 13.63
Pumping Rate Calculations
!Volume of water purged (gals) 16.50 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min) I Final Depth to Water (feet) 92.99 Number of casing Volumes
Volume, if well evacuated to dryness (gals)
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C
Chloride y WATER 1 500-ml Poly u None
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C
Comments:
Arrived on site at 1026. Purge began at 1030. Purged well for a totaf of 1 minute and 30-seconds. Purged well dry. Purge ended at 1031. Water was clear. Left site at 1033.
Arrived on site at 0805. Depth to water was 77.65. Samples bailed and collected at 0809. Left site at 0811.
Signature of Field Technician
~ . /-: ./ ..____.J , ,:,u-"---/-;/, -.'/ ';.t: •. c. C..\ --:r}
Before
After
11.00
1.50
1.39
16.50
Added?
y
N
y
Groundwater Discharge Permit
~~~y~ Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-35 Sampling_ Program Chloroform Monitoring
Field Sample ID TW4-35 12072022 Sampling Even_! 2022 Q4 Chloroform
Purge Date & Time 12/6/2022 13:38
Sample Date & Time 12/7/2022 8:57 [sampler TH/DL
Purging Equipment Pump Weather Conditions Cloudy
Pump Type Grundfos External Ambient Temperature (C) 7
Purging Method 2 Casings Previous Well Sampled TW4-43
Casing Volume (gal) 7.07
Calculated Casing Volumes Purge Duration (min) 1.28
pH Buffer 7 .0 7.0 Well Depth (ft) 86.50
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 75.67
Conductivity pH (pH Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) Units) Temp {deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/6/2022 13:39 7.33 4390 5.98 14.67 392 10.1 35.0
12/7/2022 8:57 4495 6.50 13.35
12/7/2022 8:58 4496 6.51 13.43
Pumping Rate Calculations
[volume of water purged (gals) 7.33 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min)
(Final Depth to Watl!!_ (feet) 82.98 Number of casing Volumes
Volume, if well evacuated to dryness (gals}
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C
Chloride y WATER 1 500-ml Poly u None
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C
Comments:
Arrived on site at 1334. Purge began at 1338. Purged well for a total of 40 seconds. Purged well dry. Purge ended at 1339. Water was mostly clear. Left site at 1341 .
~rrived on site at 0853. Dee_th to water was 75.75. Samples bai~d and collected at 0857. Left site at 0_8_59_. __
Signature of Field Technician
' . ,..,. --,~ ~ ,,:,-.__,·_.c__•,</···-:,!. ·>)
Before
After
11.00
0.66
1.03
7.33
Added?
y
N
y
Groundwater Discharge Permit
<~~~ ~ -~.--y~ Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-36 Sampling Program (_hlorofo~m Monitoring
Field Sample ID TW4-36 12072022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/6/2022 12:01
Sample Date & Time 12/7/2022 8:30 [sampler TH/DL
Purging Equipment Pump Weather Conditions Cloudy
Pump Type Grundfos External Ambient Temperature (C) 8
Purging Method 2 Casings Previous Well Sampled TW4-13
Casing Volume (gal) 26.64
Calculated Casing Volumes Purge Duration (min) 4.84
pH Buffer 7.0 7.0 Well Depth (ft) 99.41
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 58.60
pH (pH Dissolved
Date/Time Gallons Purged (gal) Conductivity (umhos/cm) Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/6/2022 12:04 33.00 2527 6.49 14.91 252 40.0 5.0
12/7/2022 8:30 2487 6.88 13.39
12/7/2022 8:31 2489 6.87 13.44
Pumping Rate Calculations
[volume of water purged (gals) 33.00 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min) I Final Depth to Water (feet) 95.98 Number of casing Volumes
Volume, if well evacuated to dryness (gals)
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C
Chloride y WATER 1 500-ml Poly u None
Nitrate/nitrite as N y WATER 1 250-mL HDPE u H2SO4 (pH<2}, 4 Deg C
Comments:
Arrived on site at 1157. Purge began at 1201. Purged well for a total of 3 minutes. Purge ended at 1204. Water was a little murky. Left site at 1206.
Arrived on site at 0826. Depth to water was 5_9_.63. Samples bailed and collected at 0830. Left site at 0832.
Signature of Field Technician
~ • , ,,,_. -c._. -1-;,1-. -~-s~:)
Before
After
11.00
3.00
1.23
33.00
Added?
y
N
y
Groundwater Discharge Permit (-=·/s•·~ -~I· .. r--:: ,-< -
--.,.-~y~ ,, '
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-37 Sampling Program Chloroform Monitoring
Field Sample ID TW4-37 11302022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 11/30/2022 9:07
Sample Date & Time 11/30/2022 9:08 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) -3
Purging Method 2 Casings Previous Well Sampled TW4-22
Casing Volume (gal) 27.02
Calculated Casing Volumes Purge Duration ()
pH Buffer 7 .0 7.0 Well Depth (ft) 113.72
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 72.34
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
11/30/2022 9:07 4929 6.26 14.90 461 0 64.0
Pumping Rate Calculations
!volume of water purged() Flow Rate (Q = S/60) (gal/min) 18.00
Time to evacuate 2 Casing Volumes () I Final Dee_th to Water (feet) 82.68 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
!Arrived on site at 0905. Samples collected at 0908. Water was clear. Left site at 0910.
Signature of Field Technician
I •• / • ..-~ .·,,
----, •' "•. ,C -·.--;,,·. <./, :'.,~:;)
Groundwater Discharge Permit ~. e .. ·-.-". -'£.-··-·· --y~
Groundwater Monitoring Quality Assurance Plan
-_, .. ~
.,I' . -__ .,._
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-38 Sampling Program
Field Sample ID TW4-38 12072022 Sampling Event
Purge Date & Time 12/6/2022 14:40
Sample Date & Time 12/7/2022 9:16 jsampler
Purging Equipment Pump Weather Conditions
Pump Type Grundfos External Ambient Temperature (C)
Purging Method 2 Casings Previous Well Sampled
Casing Volume (gal) 34.98
Calculated Casing Volumes Purge Duration (min) 6.36
pH Buffer 7.0 7.0 Well Depth (ft)
pH Buffer 4.0 4.0 Well Casing Diameter (in)
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft)
Conductivity
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV)
12/6/2022 14:44 44.00 1459 6.00 14.63 632
12/6/2022 14:45 55.00 1500 6.05 14.63 622
12/6/2022 14:46 66.00 1529 6.08 14.65 615
12/6/2022 14:47 77.00 1580 6.10 14.69 609
§1u"!e ~ water purged (gals) 77.00
()_umping Rate Calculations
Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min) I Final Depth to Water (feet) 103.56 Number of casing Volumes
Volume, if well evacuated to dryness ()
!Name of Certified Anal}'tical Laboratory
Analytical S11mples Information
Sample Container
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered?
VOCs-Chloroform y WATER 3 40mlVOA u
Chloride y WATER 1 500-ml Poly u
Nitrate/nitrite as N y WATER 1 250-ml HDPE u
Comments:
Arrived on site at 1436. Purge began at 1440. Purged well for a total of 7 minutes. Purge ended at 1447. Water was clear. Left site at 1449.
Arrived on site at 0912. Depth to w.9t~r was 60.67. Samples bailed and collected at ()916. Left site at 0917. Raining at time of sampling.
Signature of Field Technician
~ , , :,:,-,c.__, __ ,;-;-"' -(2~)
Chloroform Monitoring
2022 Q4 Chloroform
TH/DL
Cloudy
7
TW4-23
113.92
4
60.34
Dissolved
Turbidity (NTU) Oxygen(%) Before/After
4.3 80.3
4.4 81.2
4.3 81.0
4.4 80.0
11.00
7.00
2.00
0
Preservative
Type Added?
HCI (pH<2), 4 Deg C y
None N
H2SO4 (pH<2), 4 Deg C y
-~~-·· ~e ·~y~
Location ID
Field Sample ID
Purge Date & Time
Sample Date & Time
Purging Equipment
Pump Type
Purging Method
Casing Volume (gal)
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0
pH Buffer 4.0
Specific Conductance (micromhos)
DatefTime Gallons Purged
11/30/2022 9:14
!volume of water p_llrged O
[Final Depth to Water (feet)
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Type of Sample/Analysis
VOCs-Chloroform
Chloride
Nitrate/nitrite as N
Comments:
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
TW4-39 Sampling Program Chloroform Monitoring
TW4-39 11302022 Sampling Event 2022 Q4 Chloroform
11/30/2022 9:14
11/30/2022 9:15 !Sampler TH/DL
Pump Weather Conditions Sunny
Grundfos External Ambient Temperature (C) -3
2 Casings Previous Well Sampled TW4-37
30.50
7.0 Well Depth (ft) 120.74
4.0 Well Casing Diameter (in) 4
1000 Depth to Water Before Purging (ft) 74.03
Dissolved
Conductivity (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
2737 6.65 14.10 445 21.0 83.0
Pumping Rate Calculations
Flow Rate (Q = S/60) (gal/min) 18.00
Time to evacuate 2 Casing Volumes O
110.39 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Sample Container Preservative
Collected? Matrix Number Type Sample Filtered? Type Added?
y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
y WATER 1 500-ml Poly u None N
y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y
[Arrive~ on_site at 0911 . Samples collected at 0915. Water was clear. Left site at 0917,
Signature of Field Technician
~ ,,_. /.,;, / ._____J ,,c,v .. <--·r/··' /,_~•-, -./}
<:-,,.~
J; :.........--:e · tF--• , -I ..
r·' .~ i .•
',.~_-~y~
Location ID
Field Sample ID
Purge Date & Time
Sample Date & Time
Purging Equipment
Pump Type
Purging Method
Casing Volume (gal)
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0
pH Buffer 4.0
Specific Conductance (micromhos)
DatefTime Gallons Purged
11/30/2022 10:14
!Volume of water purged O
[Final Depth to Water (feet)
Name of Certified Analytici!I La~ratory
AWSL
AnalytJcal_§amples Information
Type of Sample/Analysis
VOCs-Chloroform
Chloride
Nitrate/nitrite as N
Comments:
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
TW4-40 Sampling Program Chloroform Monitoring
TW4-40 11302022 S__i1mpling Event 2022 Q4 Chloroform
11/30/2022 10:14
11/30/2022 10:15 lsam~l~r TH/DL
Pump Weather Conditions Sunny
Grundfos External Ambient Temperature (C) 0
2 Casings Previous Well Sampled TW4-04
8.63
7.0 Well Depth (ft) 86.00
4.0 Well Casing Diameter (in) 4
1000 Depth to Water Before Purging (ft) 72.78
Conductivity Dissolved
(um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
4169 7.05 14.13 313 0 105.0
Pumping Rate Calculations
Flow Rate (Q = S/60) (gal/min) 18.00
Time to evacuate 2 Casing Volumes ()
80.53 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Sample Container Preservative
Collected? Matrix Number Type Sample Filtered? Type Added?
y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
y WATER 1 500-mL Poly u None N
y WATER 1 250-mL HOPE u H2SO4 (pH<2), 4 Deg C y
[ Arrived on site at 1010. Samples collected at 1015. Water was clear. Left site at 1017.
Signature of Field Technician
-----... , , ,,;-; ./
-___) , > :_.,,..,.~.,:__,. -r,;r• -~ ( ... d~S:)
Groundwater Discharge Permit
~-~~~ ~..-~y~ Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-41 !;amr,>lin_g_F>rogram Chloroform Monitoring
Field Sample ID TW4-41 11302022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 11/30/2022 9:59
Sample Date & Time 11/30/2022 10:00 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 0
Purging Method 2 Casings Previous Well Sampled TW4-01
Casing Volume (gal) 13.59
Calculated Casing Volumes Purge Duration O
pH Buffer 7 .0 7.0 Well Depth (ft) 97.75
pH Buffer 4.0 4.0 Well Casing Diameter (in) 6
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 88.44
Conduct1v1ty Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
11/30/2022 9:59 2702 7.05 15.89 315 o 97.0
Pumping Rate Calculations
[volume of water purged O Flow Rate (Q = S/60) (gal/min) 6.0
Time to evacuate 2 Casing Volumes()
[ Final De_pth to Water (feet) 91.19 Number of casing Volumes
Volume, if well evacuated to dryness() 0
Name of Certified An__al~ical Laboratory
AWSL
Analytical Samples Information -
Sample Container Preservative
Type of Sample/ Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 0955. Samples collected at 1 O_Q_O. Water_was clear. Left site at 1002.
Signature of Field Technician
~ , __ .,-.///-: / --._.) ,.,:,J1~•--c..---•,.,,r. -__ . d.1:_,::;:.)
Groundwater Discharge Permit ~e~I. C , .-~ .·, ~ -(, /;· .
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-42 Sampling Program Chloroform Monitoring
Field Sample ID TW4-42 12072022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 12/6/2022 8:36
Sample Date & Time 12/7/2022 7:45 lsample_r_ TH/DL
Purging Equipment Pump Weather Conditions Cloudy
Pump Type Grundfos External Ambient Temperature (C) 0
Purging Method 2 Casings Previous Well Sampled TW4-03
Casing Volume (gal) 9.95
Calculated Casing Volumes Purge Duration (min) 1.80
pH Buffer 7.0 7.0 Well Depth (ft) 86.00
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 70.76
Conductivity Dissolved
DatefTime Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/6/2022 8:37 11.00 3941 6.53 14.32 460 3.8 99.0
12/7/2022 7:45 3834 6.80 14.55 Before
12/7/2022 7:46 3847 6.78 14.59 After
!Volume of water purged (gals)
Pumpin-9 Rate Calculations
11.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 1.00 I Fina! D_~e_th to Water (feet) 83.25 Number of casing Volumes 1.10
Volume, if well evacuated to dryness (gals) 11.00
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
Arrived on site at 0832. Purge began at 0836. Purged well for a total of 1 minute. Purged well dry. Purge ended at 0837. Water was clear. Left site at 0840.
Arrived on si~ at 0740. Depth to w~r was 70.94. Samples bailecj_ and collected at 0745. Left site at 0747. _ __
Signature of Field Technician
~ , , '..N --~ •. ,!.~~-. :;•;,-:::~)
;:--
.r" __-:e ------. PF-. . ' .•-·
r'-. .-·/
. . -----:, . • ~YFLl'EZ.S
Location ID
Field Sample ID
Purge Date & Time
Sample Date & Time
Purging Equipment
Pump Type
Purging Method
Casing Volume (gal)
Calculated Casing Volumes Purge Duration (min)
pH Buffer 7.0
pH Buffer 4.0
Specific Conductance (micromhos)
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
TW4-43 Samplin.g Program Chloroform Monitoring
TW4-43 12072022 Sa_mpling Event 2022 Q4 Chloroform
12/6/2022 13:04
12/7/2022 8:48 !sampler TH/DL
Pump Weather Conditions Cloudy
Grundfos External Ambient Temperature (C) 8
2 Casings Previous Well Sampled TW4-31
14.52
2.64
7.0 Well Depth (ft) 95.5
4.0 Well Casing Diameter (in) 4
1000 Depth to Water Before Purging (ft) 73.25
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
12/6/2022 13:07 22.00 3720 5.68 15.02 601 52.0 30.0
12/7/2022 8:48 3748 6.70 13.14 Before
12/7/2022 8:49 3752 6.70 13.19 After
!volume of water purged (gals) 22.00
Pumping Rate Calculati_ons
Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 2.00
!Final Depth to Water (feet) 92.03 Number of casing Volumes 1.51
Volume, if well evacuated to dryness (gals) 22.00
Name of <::ertified Analytical Laboratory
AWSL
Analytical Samples ln_formation
Sample Container Preservative
Type of Sample/ Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1300. Purge began at 1305. Purged well tor a total of 2 minutes. Purge ended at 1307. Water was a little murky. left site at 1309.
Arrived on site at 0844. Depth to water was 73.40. Samples bailed and collected at 0848. Left site at 0850. Rainin=g_a_t _sa_m~p~l_in=g ______ _
Signature of Field Technician
~ '. ,,/;/ ...___J , , : ,,._. __ c.--r/• ··c /.. ✓-~)
Groundwater Discharge Permit
~ ~e-c / · E( .· · r -'~ . ~YF,LJ'EZ.S .,,,. ~ Jo
~ ,' '
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-60 Sampling Program Chloroform Monitoring
Field Sample ID TW4-60 11302022 Sampling Event 2022 Q4 Chloroform
Purge Date & Time 11/30/2022 8:09
Sample Date & Time 11/30/2022 8:10 ls.!i.mpler TH/DL
Purging Equipment Pump Weather Conditions Clear
Pump Type External Ambient Temperature (C) 20
Purging Method 2 Casings Previous Well Sampled N/A
Casing Volume ()
Calculated Casing Volumes Purge Duration ()
pH Buffer 7 .0 7.0 Well Depth (ft)
pH Buffer 4.0 4.0 Well Casing Diameter ()
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft)
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
11/30/2022 8:10 1.5 7.06 15.30 474 0 20.2
!Volume of water purge<! 0
Pumping Rate Calculations
Flow Rate (Q = S/60} ()
Time to evacuate 2 Casing Volumes () I Final Depth to Water (feet) Number of casing Volumes
Volume, if well evacuated to dryness() 0
l'lla"!e of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
[01 sample was collected in the lab at 0810. Left site at 0814.
Signature of Field Technician
---'\ ' /.' _, / ..___) ,,.,,.•.-~--/:I -,/, :~S)
TabC
Weekly and Monthly Depth to Water Data
Weekly Inspection Form
Date Name D,,:,n G--'f"""~,° , • .,,.= tt-.l~c
vstem Operational Clf no note'·
Time Well Depth* Comments anv problems/corrective actions)
1n'.\~ MW-4 «1 ~n Flow " n
,_ No
Meter ~ 4 1 ~ , .., n 1,. D ..... No
tl\O I MW-26 "1Q ,., Flow U~ /1 .. No
Meter -,"".,,, t. 1 '-l. Cf ,.. No
1--i...n2 TW4-19 '1, {) q,. Flow It., 0 -No
Meter ~-; r..-, 1.1,. "1~ ... No
I la.ff,. TW4-4 ,n, -:ir.. Flow J ,. 4 '--No
Meter '5l I ~ 19. '2-.Q ~ No
oq, rot TWN-2 ~ l. f,. I Flow If,., () ..._No
Meter , ,_ 1 -, !:I , . 1,/ :z .._ No
nq~a;--" TW4-22 /,.~. ~ ~ Flow 11,. '-I .... No
Meter q , q ct "1 / •• ~ -No
nq~~ TW4-24 ,.-, '-11'1 Flow I, .. I IJ ~ No
Meter ~ n o :1 /,. c.., '-' ~ ... No
oqn-, TW4-25 t.,q ..., t:; Flow t'n In .... No
Meter ,-:a :11.<2~ n °'" -No
J()'-11 TW4-1 1n,;", 1st Flow 1"2. n 1IIIS No
Meter .., oq i;-.;:0.1. .. No
l n ~ I .. TW4-2 1n'-I Qt Flow I t::.11 JIIS No
Meter l(oq 1,. ~ 2 .~ ,._ No
m,, TW4-11 Ql\.1"7 Flow t <'. 'i< ... No
Meter 1, 'l In &.1c;l .... No
O'i','1q TW4-21 .., ,_ 4"1 Flow .1/.. -:::7. .. No
' Meter \\fc;" t • .::z 7, ~ o Wig. No
nq .. 14. TW4-37 ~~.11.1.. Flow I '6, n ... No
Meter ".'.l. 2. ~ "1 () .., -, :2. .... No
oqif:; TW4-39 "T"I c;~ Flow 14. 0 ,.__No
Meter qqa;.fnt:' :1.r< .... No ··~~ TW4-40 -,~,4,r Flow I«, n ..... No
Meter , ll..,CI "".In-, , ~ ..... No
LO r;'L/ TW4-41 ljlq,i1 Flow /,. /J ... No
Meter '"'n q ~ 'i'"I, -,,.~ .... No
Operational Problems (Please list well number):
Corrective Action{s) Taken (Please lisfwell number):
* Depth is measured to the nearest 0.01 feet.
Weekly Inspection Form
Date I a-tQ ·., :2?,. Name
Time Well Deoth* Comments
I() -:1. ,< MW-4 ~)..c:;{J Flow L.f,0
Meter ~ '-I I qq -.2 ~, qq
1nnL-{ MW-26 'f>,~1 Flow I/,..{)
Meter 7 ~ .:;-1 ;:; 1 n
I It;' I TW4-19 '-,_. -,-, Flow J /r, /')
Meter 7>-1, n .. , Q ~n
J/)L.j i;' TW4-4 gl-i J-=3 Flow //.,., lo
Meter si. 1 q y -, ~ . n
l)q1,;. TWN-2 ,~'1 t.-j i-1 Flow /l,, n
Meter I f,, ,1.. q "1 ""1 cp,
()q4,1_ TW4-22 lA 9. n i./ Flow j (. 1.,/
Meter 9 l.. \ i. ',( ~ I -
lflCl'1.:..t TW4-24 1. ... q -, () Flow I(~ I :J.
Meter 2/)()11/JJ.t./~
nq,, TW4-25 / . .;·q 1 .... 1:,' Flow l"'.1 0
Meter , -,, ~ "1, n '-i. ~q
, n -~ 1 TW4-1 ; {) I I {,. Flow I :l.. t..j
Meter 41 n I i;-·J.. ~
f/) I 1 TW4-2 /(){~ ;::;/::{' Flow It ... n
Meter .,., /J.:; J.("I) ~ ~
JOii TW4-11 qn,1 I Flow J ...;,~
Meter , , 4, i ::>.. ~.,
IJqnq TW4-21 -11. l.~ Flow 1,~ '-1
Meter _-,, \ t, :2 9' -; sr... /,, t,.
1ncu::n TW4-37 i,.,-, a.'1i Flow I 9... n
Meter .2 14 n, ~<"11,'i\
()qt;' «n TW4-39 -,~.11 Flow l~.n
Meter q '\, c:;-/.GI -,
IO c,'_"2 TW4-40 ,~.c;J"1, Flow ,~ n
Meter ,n~1L£\t,. ,,
lll-::1.9' TW4-41 (,.(q ,t/,/) Flow /,, 0
Meter 1-4 1 n l r:;n '71/
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number):
* Depth is measured to the nearest 0.01 feet.
ystem Operational ( no note
anv problems/corrective actions) .,_ No
1111s No
"WIii No -No
WIiis No
19= No • No
~ No
~ No
'las No -.. No ... No
'II& No .. No ,. : :..,,.
' l!!s No .. No
1l!i=e No • No .._ No
~ No
• No
'es No .. No
~ No ... No .. No ,_ No ... No
lils No .... No ... No .... No
Weekly Inspection Form
Date Name ZJ,_ !cf-/. ,.-----,_,. tt'-14:1.'
System Operatio;,;;,f no note
Time Well Depth* Comments anv problems/corrective actions)
091{,:' MW-4 Cl.I r::'-f Flow ". 0 --No
Meter ~ 1.1 :u .. q 7r_ I~ • No
nq ~ u MW-26 4t&.f 'I. ,_ Flow If. 0 ... No
Meter -,,.,-r~,~ _q .. No
I '2i"4 0 TW4-19 ., .., ~ ,.-Flow JI'.. 0 .. No
Meter ~5""1~fll ~'i" .. No
,nol'a TW4-4 ..,,;-,._ &.I~ Flow I(,. 1 ... No
Meter ,,g 1 n , q ~ ~ ... No
n~t:'-r TWN-2 <4.~I Flow J /,,.. :l ,.._ No
Meter , ,. 4 , ~ '1 • "1 '1. ... No
/JCUHt TW4-22 ,_q '1< Flow I/.,,() --No
Meter cu~ 1 1, ,;-, c;-.. No
lnein ~ TW4-24 /.,q,. "« '2 Flow I I'. 41 ... No
Meter '2 l':I II -t 1'-9 q ,:'° ... No
tJ~~1 TW4-25 I'~ f. . "' (l Flow I/) <l ,. No
Meter I 1 I.I I c.J t:14 "1~ ... No
.,, nq~, TW4-1 llJ~.'7~ Flow I '1 9. .. No
Meter .., , n f,. ~" .~ ..... No
t
nq~"1 TW4-2 qq 11.1 Flow I t:°: 'f ... No
Meter ~or.. ~s-<" ~ .. No ·-
nq~n TW4-11 qn t'l Flow 'r;-: ~ ,. No
Meter , , &.( 1 ., n ~ ... No
{)9.i./< TW4-21 ..., /,, ;"'~ Flow l C. • "4 -No
Meter ~, ,,.q c:;-1 t. ~ ~ -No
nq '&.f TW4-37 "11.0~ Flow I 'R. tJ .. No
Meter !l ".l...&.f-,, ".I. "1r~. ~ WE No
nq1q TW4-39 -Ya.f .r ... o Flow 14. n 'k No
Meter Q qq I "T., 11 ... No
,nur TW4-40 7'1 '2.'1 Flow 10. "1 .. No
Meter , n q, c 'T t..1 t. :1 1la-No
(}'1~11 TW4-41 «4 1"'7 Flow (. /) • No
Meter .., 11 n .,_ :JH4 .... No
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number):
* Depth is measured to the nearest 0.01 feet.
Date
Weekly Inspection Form
Name,
T 1me W II e D th* eo1 C t ommen s an~ ~ro
oc,,:-q MW-4 ~« to Flow £/,0
Meter 3 41 ~ ~ t,. -i o. ~ t
oq..21' ... MW-26 tfl"!.~1 Flow It~ f1
Meter 7'4 qr,. c.. 1, ~
., ''"ii;;--TW4-19 '""T~,-,'7' Flow I G. 2
Meter ~ , .. ~ :.2 q a:t r ... ~
, n 2ct TW4-4 ~,. I 31 Flow ) /,. 0
Meter ,r~n~qo.t ..
ntR"J,1 .. TWN-2 ~If/,,;;'/ Flow //. n
Meter I/'.. ~I-/ trll 7 (.. .
OCAS"ct TW4-22 t.,q,"l,"'2, Flow /~./]
Meter q-~_.t;'f') q ~.q
Offt;"'I TW4-24 t:.'l,t£i Flow lt..O
Meter ~,, ,~~ .!21, :i,:
llfl .1 ~ .. TW4-25 /.,q. ~~ Flow It,, 9.
Meter 1-i...1.1.cgqCf ~ 1,,1q
,n nq TW4-1 ,nr; '.2.~ Flow 1 "1.. • fl
Meter ~,,~w,-7
nq,:-n TW4-2 , ,,.., nrr Flow //.. 0
Meter r:; l'J -, 4 -:i ~ • '>
b <I ,_,fl TW4-11 ~~ .,q. Flow 't;", l.
Meter , , ~~ .=2 LI-~
o• t 9f TW4-21 71.. , q./) Flow I/,. 0
Meter ~, 'T "-:::, "rr;-. , ,
nttlJ(;, TW4-37 l. fl .. 'HO Flow '"" n Meter ~ .._u~'-113.t.
;oq,q TW4-39 -f'-1 .. 7'1 Flow J~.D
Meter , on .2 ,-..o-« ~
In &.1< TW4-40 -, ~. <?c;,. Flow ,« .. 0
Meter , """~,1,.q nr.:;-
JIJJQ TW4-41 .gq Iii Flow t., 0
Meter "'fl "' i:;-'!1. ~ '-I
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number):
*:Pep~~ is measured to the nearest 0.01 feet.
ems corrective actions ... No ... No
~ No .... No
~ No .. No .. No
'-No ... No .,.. No -No ... No ... No ... No
'las No
'1-No • No ... No .. No .... No ... No .. No
11111!-No ... No ... No ... No .. No ... No ... No
11111: No
!as No
~.No
Weekly Inspection Form
Date (Q-'?¢2,,2 Name f
Time Well Depth* Comments anv problems/corrective actions)
Jn~"l MW-4 'J('-1 r~ Flow L/,Q 'liE No
Meter '1 4 1-1 n ~ ~ q, 13 ..... No
1n:1~ MW-26 J{b I J~ Flow Ii,'-/ .. No
Meter , ,; , g n q. q .. No
1 ~ 1 I TW4-19 -,r; ,.,,4 Flow /7.« 1lls-No
Meter ~7~q t; /-., .2~ ~ No
I I C: c;' TW4-4 ~ 'l "'"'
Flow I /11.I) "9& No
Meter Q. '.l r r; t,. ~ ~ ... No
nq 1., TWN-2 l:;?i.t:IJ Flow It../ t;l ,.. No
Meter , t.. , .. ,. _"In n ~ ... No
l)ql.{2 TW4-22 t.9.. nn Flow ,~ /11 ,_ No
Meter q ~ ,,. 7 nq. ~ ... No
nqqtl TW4-24 l'"n,.,, Flow I l.. () -No
Meter ~ o :i. 1 &.f -:1, .;--, ~ Gt 'la No
n q I() TW4-25 ~o. nr;-Flow IO.~ .... No
Meter I .,_ ~ /. ~ ~ I . I ' "BM No
ID'-lg TW4-1 ,no.~, Flow 12.~ 11M No
Meter '-I 1 1 1 1-1 a < 111111 No
10-a,-, TW4-2 IOI.I /l9. Flow l"3.~ .. No
Meter ,: D'il.'"<..,,:. 1. ... No
In 1 l. TW4-11 ~q. It. Flow /Lf ~ 119 No
Meter , , I'. ~ 4 r. ~ ,_ No
f)Q()~ TW4-21 7~ ::26' Flow JI. n, .... No
Meter 4:( 1-H ~ q -,q nq ,_ No
l)ql.lq TW4-37 /,,~ 015' Flow I-, I-/ "" No
Meter ~ ".l. .., q ,;-n ~-1 WIS No
lnq!;"'/ ... TW4-39 "7~ J '-(~ Flow 19. 0 ... No
Meter JDOLllO.., 1 '&Ill No
I 'l n~ TW4-40 7 r:-. I-/ .I,' Flow I~ 0 .... No
Meter 1nq l.f , ,,, ~-/A .. No
Jlt::n TW4-41 11B,'l-r Flow t:. () 1111111 No
Meter '-! 1 -1. 9'.q ~. C'o ~ ~ No
Operational Problems (Please list well number):
Corrective Action(s} Taken (Please list well number): ----------------
* Depth is measured to the nearest 0.01 feet.
Monthly Depth Check Form
Date (Q-3\;;: 64½ Name Dw, e--1-,,l'llA( ~o« ff,,1/4 ?
Time Well Depth* Time Well Depth*
LQ~3. MW-4 3~,[S l!i I~ TWN-1 YJ.,~a
ll~b TW4-1 g_ 9. I 1-£-T /J'J..2J1 TWN-2 53I,~1J
"czt a :r TW4-2 ~~I,:;',(} i~l3 TWN-3 ~3.30
L:302 TW4-3 ,£-,~ ,~a~ TWN-4 '3 .3 S:
l l '5"15"' TW4-4 s "'f .. "" !:1 I 325" TWN-7 !~.~~
1317 TW4-5 13.03 '~Q2.._ TWN-18 ''3K2._Q
l 2. 'S..0 TW4-6 sa1 ::2.1 fJ~lJ MW-27 !~.90
ta.2~ TW4-7 92.1Ql ,~~3 MW-30 l~t 5.1
1:2.s:g TW4-8 1~113 l33t MW-31 ,,.s~
l~09 TW4-9 7t~L3
l 3 a.t TW4-10 7.fl..~:t.
JQ3:J.. TW4-11 g~.,~
L 1-~:Z TW4-12 s::~. ~3
iaa~ TW4-13 S''L f. 'j_ ,a..1 ~ TW4-29 1~3.!:IS
l '--JS TW4-14 '3..7..1 3,~ 12.a.1 TW4-30 1<:.-s-1
LO fl a MW-26 Z~t "'1fi. I l ,;-g TW4-31 l'• ~ ,_,
. .;,J.3.:t~ TW4-16 J..~c58 1233 TW4-32 t;t. ~ l
t:33"& MW-32 S11IO 112 a TW4-33 :Z9.;l,a
,~ 2-3 TW4-18 ::z~. 2.1 lala. TW4-34 11. I:3. ,~, ( TW4-19 -::t.5",-~!C.. 1 '--05'-· TW4-35 7.(11., QIJ
a~o.2. TW4-21 4-/$.1 a,.Lf lA2J TW4-36 ~8..99
fl~1L TW4-22 C,z:zL {lQ Og&,f~-TW4-37 ~$.Q~
l tl. '-'" TW4-23 7'1.,s., ,30:·, TW4-38 ~a.1s
o~3.J.,l TW4-24 G.1 iU 09S:~ TW4-39 :J.~1:~£5
09lQ TW4-25 ~a,o< l .2 0.3 TW4-40 ':1.£.'-'~
,~~~ TW4-26 15', l t. ll ~ TW4-41 g_g,.~+
u ~it TW4-27 1~130 l I '-19 TW4-42 i l. I 1..1
'2.'31 TW4-28 ':fCf,qL( 1208 TW4-43 73, 42
Comments: (Please note the well number for any comments)
* Depth is measured to the nearest 0.01 feet
Weekly Inspection Form
Date u-z-a.a Name Orn C-lymon -,.;.au: H,,(41"' 7svstem OperatioaHlf no not
Time Well Depth* Comments anv problems/corrective actions)
JO !J"' MW-4 ~".'..t',.~ Flow 1./.IJ .. No
Meter -3 "I 'i 7 ~ ~ 7. ;-~ • No
100"1 MW-26 "1~ ,q.;i_ Flow It. l '11111 No
Meter 7&;"&./ 1 ~ n 2. • No
11<'=-~ TW4-19 -,~ e;'-,f Flow J t ... fl ,_ No
Meter A Sl q .,_ q D • -R ~ ... No
JIJ"lt:: TW4-4 9,."1. <"n Flow /{. 1 .... No
Meter ,a~ '2 ".l car; r. ... No
I) q "-"' TWN-2 ~~.It.I Flow I~~./) ..... No
Meter ,~774'1..q~ ,._ No
ltJ~'-1 ~ TW4-22 t.it, 0~ Flow JI., n '9le No
Meter q -:J..o. "n 'I,/',. Ye No
lnq,1-4 TW4-24 ~q.~~ Flow ,t ... n -!1!llia No
Meter .20".lt;rrJ1.~.~"2-~ No
Dt:fD'-1 TW4-25 "'-Cf.,.,~ Flow 10,s:t ... No
Meter I~ t, ~ 'T~ "1_n~ .... No
ID.~ t TW4-1 ,o.::; .l~ Flow 1::2.'A ... No
Meter '-11~~11.'.'.'. ~ No
IOI" TW4-2 /tl'7,/!J Flow N' • .2 --No
Meter ,:nq~ 1 ">.. ~ ... No
11'1 I TW4-11 lljl~ ...,,;-Flow /'-1 ~ ,.. No , Meter 1 , 7 ~ 7. q ~ ... No ...
o~~.3 TW4-21 ""7/-"l.C-Flow Jr..,., .... No
Meter ~ 1 ~er&. , Iii'. -, -r -No
,oqt;r, TW4-37 t:.. 7. 7« ' Flow J#Z.n :.a-No ......
Meter ~ ~ c-2 ., 'i ". n 98 No
oqt;1. TW4-39 ""1 &.( I 2 z;-" Flow } ff'.,, ... No
Meter , nn 7~<q .=1 'las No
10~3 TW4-40 ..,~ ~i;-Flow j 1' .o --No
Meter , oq 711 (),:J..t: -No
1n'3~ TW4-41 ~q q~ Flow ( .. I\ -No
Meter ---t 1 '2i. -,~~ .,.-, .... No
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number):
* Depth is measured to the nearest 0.01 feet.
Date
Weekly Inspection Form
Name Q,a c-r41r1
System Operational Clf no note
Time Well Depth* Comments anv problems/corrective actions)
II 'i' .!7 MW-4 ~(,;, t;7 Flow L( /) ,_ No
Meter J'-Ji;"t;/.c.\~ 9.L.\ .. No
/l}fof« MW-26 ~~-'~ Flow IC...~ ... No
Meter -, ;:;' t:. 7.-, ~ Cf ,_ No
Jf2,;o TW4-19 7'!1. .R ~ Flow J t,.. n • No
Meter '-4 n, w ~ ..,, ~ 1 ... No
12 ,n TW4-4 ~t-.r.:Z Flow It •. (J ... No
Meter ~ ~"'?i o 7 n. ~ las No
1011;" TWN-2 .,~ t.9 Flow I/,. n ,._ No
Meter , f..q 1 q,q. 11 .... No
In :2 t;" TW4-22 /,.~ ~~ Flow //;. .n .... No
Meter q ~04 ,;-~ .7 ~No
102.tl TW4-24 ~q.q, Flow Jt.. ~ --No
Meter 2 o -,., ~ 1 t; In, '-I 2 • No
Ill t l"'I TW4-25 70 10 Flow I().,~ ,... No
Meter , -a, '1 -:J. " ; D , ~tit .. No
,,c;-q TW4-1 q~ . ...,,,., Flow J ':l tii ... No
Meter "I 1 ~ ,:-1_ ~ .2 .... No
I I 1-1 t;" TW4-2 qq q::, Flow It. 1 .. No
Meter ~, -('l '-I -r 1 . 1 ~ No
J IJ'i" < TW4-11 l.~I. ~A Flow J..., 9, ,_ No
Meter , , q i:-t.,...1-~-?-... No
n~n, TW4-21 it:'. « ~ Flow I I •. "J. .. No
Meter ~ 1q '1ct4ir'il. ,:-() ... No
In ~l TW4-37 ...,,, o, Flow J~.n .. No
Meter~~ ~/..":l lli\ q ~ No
IO'lfc' TW4-39 "1~.&./~ Flow ,.~ .n "Ills No .
Meter I O J O LI Q I . ~ .. No
I '11 "T TW4-40 72-..:2.:2 Flow 17-~ .... No
Meter , , n ~ n ~ ,.. --1 q .... No
12-n< TW4-41 (\(\ {lq Flow , .. I) ... No
Meter '-t , L\ ,;; o ~. 'h \ ...... No
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number):
* Depth is measured to the nearest 0.01 feet.
Weekly Inspection Form
Date
System Operational (If no note
Time Well Depth* Comments anv problems/corrective actions)
'., ,::"~ MW-4 ~ "I I,;" Flow .., 0 ,_ No
Meter '?, "f t.11 /..1 -,q ... No
,~41 MW-26 7!..'11. Flow 11 ... ,L/ ... No
Meter 7<·~ q ~ "l, ., .. No
1'2.&.I(' TW4-19 ,.q i.{c;' Flow , , •. 1 .. No
Meter i.r , 1 q ~ 1. "2, 1.4 .... No ·~·~ TW4-4 fl. I. 7 ~ Flow l L, 1,4 ... No
Meter ~ 1 ~ r ... I) $1 2. .._ No
I ".l 1-::l TWN-2 "?~.hi Flow l'6 n ... No
Meter 1,n~~~-~o "lie No
11.l_ 1. TW4-22 ,~,. . ., ,;-Flow u. ~ ... No
Meter q~ 1., ~ "'· tLJ ... No
J '.2 I "ii TW4-24 r.q ff' Flow I t,. • IJ ,_ No
Meter .:i n &.f si , 1 "T ".'.l ~ ¥as No
J.:ll)G, TW4-25 ;n "';I Flow fl)~ .... No
Meter 1-::r.7q"4~'7~«-:a. 11a No
1"\a-2.. TW4-1 1/\,2 1~ Flow 1"1 ~ ... No
Meter Lf , "'4 ~ ,-.q n ... No
TW4-2 Q~. I :1. Flow ' ... No I '.l ,;" I • ,. 'l-~-
Meter i:-,,-,, n .l , 111111 No
1'14t. TW4-11 qq_..,8 Flow I Cti 0 '1118-No
Meter , 1 q ... , ~ '1 r. 't!5 No
,1.n() TW4-21 ..., ~. \ (. Flow It.. 'I ... No
Meter_-,. :i tJ ~'-1,ftt. ~/4 ~ No
11 'l« TW4-37 t:.,q q 'i Ffow ,~ D ... No
Meter :1. ".J cq~ 14'.I. .. No
/2.3~ TW4-39 71.73 Flow l'lt.l) lrll, No
Meter , n , &.t uJ t.. n ... No
·~ 2.0 TW4-40 "12. -,.,;-Flow •~ n .... No
Meter 11 o i;-t. -a~ "l't> .. No
1 "'1n sa TW4-41 ~q_,o Flow t .... n ... No
Meter '-1 t,; 7 ?.. ,. -, n WIS No
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number):
* Depth is measured to the nearest 0.01 feet.
Date " -2,$-,a ,a '
Weekly Inspection Form
Name.
Time Well Deoth* Comments anv problems/corrective actions)
"w:, ::\ ~ MW-4 RI/,// Flow I/. (J ... No
Meter'.·~•-u.~u.n "1. no -No
nq,~ MW-26 q~ ·~ Flow It. n .... No
Meter -, 1,. n S? lJ t,, , ,... No
1n ~ r. TW4-19 -f~ ~, Flow ,,. (j • No
Meter •I 2 n i I (,. 4il ~ 1lllt No
l)q4.1.., TW4-4 tHL Cl~ Flow 11 •. D ,_ No
Meter ~ l.."1 2 t.q .~ ... No
0~'-l'l TWN-2 ~~. 'ifn Flow I,; '11 ... No
Meter , 7 1 ~ "'1 '1 • C.( q 111111 No
o9.,t'. TW4-22 /,. {. "'" Flow u. n .. No
Meter q ~ ~41 J.. 2 .t. .. .. No
O~l.f411t TW4-24 ·/,. ,g, tf (,. Flow I~ 2 • No
Meter :int:;'"t,. 1 ,;-,:-"" Jlla No
1oc;r:; r~ TW4-25 tf.q,~;:;-Flow ,,. n -s. No
Meter , "\ ~ c;"' ~ ":I 7. &.f 'T ,_ No
IJ(.f'AT TW4-1 q~ ego Flow J~.~ ... No
Meter 4 J 4 ; .., ~ q ... No
oq~(. TW4-2 0-'1. "3 '1 Flow ,..., ........ \':).L\ ... No
Meter t; 1 "'l n e; ~ .:2 -No
nq21. TW4-11 qn o'-1 Flow I(,. () .. No
Meter , !I 11 ~ ,s; ~ o ,._ No
0 «·~O JW4-21 -rt ... -, r Flow lt'.,0 ... No . Meter ~~.11C1~.2.-z~ ..... No
nqn'.'.l TW4-37 r.t ... r~ Flow 17,'51 .. No
Meter :2 j._ ~ ".l -, -, '!, < .... No
bqfH1 TW4-39 7"1 "2,."; Flow l~.D ..., No
Meter , n' "-4q,;-: r ... No
oq<q TW4-40 -,~ .f..~ Flow I 13 0 ... No
I Meter 1 , o « /,. I.a q ,: '? .. No
ll'l'-12. TW4-41 «"I ..,~ Flow ,. n .. No
Meter L4 I C..5't1n. -J~ ... No
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number): ----------------
* Depth is measured to the nearest 0.01 feet.
Date
Time Well
09, r; ., MW-4
O'il '?t 7 MW-26
/ I) I(',. TW4-19
nq-1~ TW4-4
D9.n'I TWN-2
n~1n TW4-22
In~ J ~ TW4-24
n7'5~ TW4-25
nqr, In TW4-1
n~ ,.,q TW4-2
n1tl./~ TW4-11
n -r~n TW4-21
n~.2 t.. TW4-37
!D-R :'.l, I TW4-39
nq~q TW4-40
nt::11-r TW4-41
Depth"'
~~.'31
13 9/.,,
-,.,,, q()
'R.., ,., J./
Weekly Inspection Form
Name :z::::ka: k iyatcYO
~ystem Operational (If no note
Comments anv problems/corrective actions)
Flow LI n '-No
Meter :\ 'i 15"" £" 2 3 '1 "?, "Ill No
Flow Jt. ~ ,._ No
Meter 7 r~ ".'.3. o 7 ~ ~ ,._ No
Flow I I. rJ -No
Meter '-1-Z.l".1.nn 11 ~ No
Flow I /11. '-/ ~ No
Meter ~ 2 -~ ,g "f -2i q ... No
~j :1 t; Flow u .. n .. No
Meter , 7 .l ,;-7 ,2 '77 '.911!, No
1..q qn Flow J f,., 'J. --No
Meter q ?i ~ ':\ '-I r,,. _/"J .... No
'1?. DR Flow It. 1 ,.. No
Meter ~ n 1,. If' r,,. ,;-.::J. <"~ '11111 No
(,.q, tr( Flow ID,9. ... No
Meter 11 q :1. 1,,~7, q7 'lele No
q/ .. ,qsr Flow I 'l. 9. ... No
Meter 4 , ,; '-I q 1 • n 'la No
//)~_,oi Flow J tn n 'Ills No
Meter e;, -,,n 7 n. ~ ... No
~q I':\ Flow I t::'. {,. -No
Meter , ".l 1 :1 n . Y 7 ,.. No
"1~.--z,r; Flow I{;. :l ..... No
Meter '1, 1 1 C\ c., ~ f( .'-f "3 as No
"f{j ~ -:r, Flow '~ 0 ... No
Meter ~ ~ "~ r.. n I q n 1lal. No
"'11 'il7 Flow , iJ (} ... No
Meter Io 1 n -,~ LI :1 ... No
'1~ fl) Flow /R,O 'Ila. No
Meter , 1 , "l &..1 ~ ~ , , .... No
~q "1~ Flow /4 0 .. No
Meter /./ 1 ., '-I {) r::. -5'1-J '119 No
.. , -·-Operational Problems (Please list well number):
-----------------,'c,•
Corrective Action(s) Taken (Please list well number):
* Depth is measured to the nearest 0.01 feet.
\
Weekly Inspection Form
Date Name Due C-, /~ea111n, .:z;;;acr; flat<,~,
S~stem Operationaat no note
Time Well Depth* Comments anv oroblems/corrective actions)
n '"1"1,. I MW-4 iiC ~. -i. .;-Flow '-1.n .... No
Meter ?JI./Qt.C:-~n "'' 'k No
n7t~ MW-26 -r'J f.,... Flow I/.. 0 .. No
Meter -, /_.,. ""2. ~ , -, ~ No
JD 30 TW4-19 -rl{.i.t~ Flow u~ n -No
Meter "1 11 j ,;-"1 J. j 9. • No
n-r~n TW4-4 ~' 2q Flow I~ IJJ llM No
Meter ~ :2 £;" q n Q. Ii' ._. No
At',,'(~ TWN-2 .,;-q. 0 ~ Flow ,;... /) .,_ No
Meter , ~'"' .,__ "i q ~ "?. ~ .... No -
nb t:: /4 TW4-2-2 ;s,,;c ".l '1 Flow ,1/".. d -No
Meter oi ~ ., -, ~ ~ ~ -::i --No
Int ... t;'°I TW4-24 ;.q, s./1.f Flow /~~,. -as-No
Meter ~ "'~n '-1.r.n n ::1-.lls No
n~ "In TW4-25 Lct,:JI Flow .I '.!J • 0 ... No
Meter, ..,l'l ¥ 13 "~ 1 ... 4 ... No
/'J., ~"1 TW4-1 qq. ~ '1 Flow I~ ~ .... No
Meter "' , 1. "Ir, n. 1 ,_ No
lJ'1~/.,, TW4-2 /l)~.q1 Flow I/,. n ... No
Meter ~,,..,Liq~,~ .... No
D7-2 l TW4-11 .g~."lf~ Flow I '-I .<I. llll5. No
Meter , ~ -i.a -i. -, 1 ... No
/)~~~ TW4-21 -r I:..-:,,< Flow ,/ti:,.~ 1-:.No
Meter -::i, ~ .~ , ~ ~ -s. t"' -No
17701 TW4-37 -,o I 12 Flow 14.. n ... No
Meter ~ ~ '"11 ~ r-i::: '-I .., No
l71n., TW4-39 -, ,.,, , /,. ,. Flow 19.n ~ No
Meter Io .:1 a::--,a. ::1 1, r ~ No
l').,~'it TW4-40 ..,2,_ -Jl Flow 17. {,. .... No
Meter 111«rife2 ,u -No
()-,I,{~ TW4-41 etO,llJ Flow ~.n '9le No
Meter ,., , ~1'?-2,a,. ~~ ~ No
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number):
* Depth is measured to the nearest 0.01 feet.
Weekly Inspection Form
Nam~~_...., :-c~
/ S-~~nal (If no note
Time Well -Depth* Comments anv problems/corrective actions)
I '2 "I I MW-4 Cj('7_ ct~ Flow ,., (J ..._ No
Meter "'.\'-t~q1 ~ ~ . ..,.., 11111 No
oq'"' "' MW-26 S('?,,qi::; Flow I~ "/ ,. No
Meter -,~ 1"'11/IJ, 'A .. No
( 4 '4. t:."" TW4-19 7.., ·~ Flow I(,. n ,_ No
Meter ,.,r:-~, ~./.. /J t. ,... No
12,;'1',., TW4-4 ,;t'?, l.l Flow I--, .1' ... No
Meter 'S u .. .2 C\ i..t • -s ... No
O~,;'q TWN-2 ~~-~I Flow 11 •. n ...... No
Meter 17.., q ~,; t1t t .. .... No
nqr r. TW4-22 ,.q ,._..., Flow I t..O ... No
Meter·-q ~'R::,. "3 o.-.,. -No
nqn-, TW4-24 1,,1.r;n Flow I{. l. .. No
Meter ~n9.~"''"'·q" ... No
IHl( ~ TW4-25 (.ct I I q Flow Ill.~ .. No
Meter 1 '-fn ~~'Sf11 ,:tq ... No
J-:J.t,,{(. TW4-1 qq_ ,.~ Flow I '!\.I. .. No
Meter ,.,, 1 t. "1 o; ~ q -No
12"' t;""" TW4-2 In J 'T'l Flow JfA n ... No
Meter ;-, ... 1~n() .~ • No
,2.-;o TW4-11 qq 1n Flow ,r;_,.,, W. No
Meter , '.l :z. ~ D 2.1 .__No
n$\'4a.f TW4-21 -, -, "2., '2., Flow I fL,. I./ ~No
Meter ::12 ~ &.f 1:11o1 -r " , • ._ No
oq1il> TW4-37 -,n U·I Flow J'7,/a ... No
Meter 11 -r "l.., ~ -,. 2 .. No
/)q ~ t,. TW4-39 "12.f>I Flow ,q_ 0 11,· No
Meter , D 1,_; ,., u. 1, I ... No
1-,,, rr~ TW4-40 '\ ~/., Flow /9.. 0 'lie No
Meter 11' Q"fQ '1.. La'?, --No
J l... .c; I TW4-41 C1.'\ a,~ Flow (,. n ... No
Meter ., , q ~ ,;--~. ~ q 1M No
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number):
* Depth is measured to the nearest 0.01 feet.
' '•
Weekly Inspection Form
Date ,,._ 31 ... 24 Nam~ Gd;~ /A-,c «4:f
System Operationa(Jf no note
Time Well Deoth* Comments anv problems/corrective actions)
()CJ\~7 MW-4 ~1. l9. Flow l-{, 0 .... No
Meter -,,._,q 7f.?D '.l.2 .... No
()q'lD MW-26 Cl&.< q1,_ Flow I I., n ,_ No
Meter .., , ... ~ .lj' I./., .,._. No
I lLf«q TW4-19 1 no. "2, Flow It:. l'J ,... No
Meter '-Jt. ~'J.<11 r:n .. No
llHi..t TW4-4 ~q r;(~ Flow J L. ,., ... No
Meter ~ '1 /., q g ~ '.l. ... No
(HI '1 f., TWN-2 '77./-~ Flow J t, '2 .... No
Meter , -, t.1 "1,0.nl .. ---No
IJqn,., TW4-22 ..., n r. n Flow ,,;'.~ ... No
Meter Q,., tu. 71. n ... No
n·9,,;-, TW4-24 l.s? .I. 3 Flow I I. 0 ... No
Meter :2 o q 11 ..., l:'i s, ,A -._No
OSI -Jiq TW4-25 t:,q,"7/ Flow J:),,0 ._No
Meter l '-111-/. '1' (,. ~. gg ... No
,no~ TW4-1 in<. 1, Flow /-:::1 ~ ... No
Meter 14 I "1 i.{ t) 11 '-f • No
nq-z.2 TW4-2 ,,,;-,3 Flow I l,, fl .. No
Meter t;' I~ 'iJ ~ 1. 1 -No
oq17 TW4-11 ~O Ofn Flow I '-I ~ Jilli No
Meter I '1 '-I Y '2i . "11 ... 111s No
n~".l1 TW4-21 77. 4 t~ Flow J lA '-I Wilt No
Meter "!> 1.. '-< ~ t.( -; 'I. n I{ -No
oqnq TW4-37 {. ~, ln~ Flow I.., I I. ,_ No
Meter -1_ 2 7 ,_ ~ 1 '-I n ..... No
/)qJt;' TW4-39 ~() J4 Flow ,~ .n ... No
~ Meter , o ~ n t> ~ -r, ~ ... No
,o,o. TW4-40 '"13.~~ Flow '". 0 --No
Meter , , ".1 "?.-, ~<.~t,, ~ No
1ooq TW4-41 ~il 1..1l Flow lt11, 0 ..... No
Meter """lo 1-a"9_q1 --.is No
Operational Problems (Please list well number):
Corrective Action(s} Taken (Please list well number}: ----------------
* Depth is measured to the nearest 0.01 feet.
Monthly Depth Check Form 'if
Date I it-i1 q _ 2ib Name:v_, en, ~,,...--$,¢'
Time
09.1,:7
!003
0!'.32..
,o,:'4
JOPi
12, Oct
/fJ"f'{
JQfef7
ID5'Q
11,.( '1
i tl-t 9
09'"--7
/3 f 3
l3<G
1303 ·
o,a.a
1011
-,0:ao
fQD"I
J( ':19
01)3
090'(
JO 3:r
OS5''t
Q'a~!I
(0'10
/~'37
f "3-11
Well
MW-4
TW4-1
TW4:..2
TW4-3
TW4-4
TW4-5
TW4-6
TW4-7
TW4""8
TW4-9
TW4-10
TW4-11
TW4-12
TW4-13
TW4-14
MW-26
TW4-1-6
MW-32
TW4-18
TW4-19
TW4-21
TW4-22
TW4-23
TW4-24
TW4-25
TW4-Z6
TW4-27
TW4-28
Depth* ,,...,,.
tOa-37
fl$'.; 13 ,~~,o
S'1.,:5"4
7/.CJ/
~1-9&
S;t, 2,q
fol/.40
'7(}, /fl ,q. 45"
go.ot,.
5:4u;S'L
~z. 1ss-
77. ,;3':l
9':1,9&
7q.3 S:
sa,...,,
1'1, OS
,00.J.,1
71, 'it,
10, (,,Q
7t;,,G:
<-i,&3 ~,.-, \
1'f,S3
7,, 2,4
yq, IS
Time
/QOL
09'1,.
095"'1
01'19
0933
O!Pf:5"
09'39
//)30
,oa:,
,as:,
13..'V·l
/2,Hl
t3 :ZO
/2,.,33
J'A'{'5'
12$1 ' J-S()7
aero,
ri:e;:
aq,;:
/OIC\
J1a•oq
J ;l.2D
I ~tiff •,
Well
TWN-1
TWN-2
TWN--3
TWN-4
TWN-7
TWN-18
MW-27
MW-30
MW-31
TW4-29
TW4-30
TW4-31
TW4-32
TW4-33
TW4-34
TW4-35
TW4-36
TW4-37
TW4-38
TW4-39
TW4-40
TW4-41
TW4-42
TW4-43
Depth*
ltJ.21
7"1, t-'.3
'1'l,33
lil,t3
79,S:'3
,1.10
59,':18
1S: ti
<,'l.'ft.
79-,1~
'7 S::, 11 7,.,3
~t,.q3
713 • 7<:rt
77, 3S::
75'• 1 .. ,
i'S,4\
l.1, G.,:
40/3£
·,ao .. «'1
7:,a,,93
9S,'M5
70, t.7
73,3(
Comments: (Please note the well number for any comments)
* Depth is measured to the nearest 0.01 feet
TabD
Kriged Current Quarter Groundwater Contour Map, Details Map, and Depth to Water Summary
Name: Tanner Holliday. Deen l,ym3Jl
11/17/2022
Depth to Depth to
Date Time Well Water (ft.) Date Time Well Water (ft.)
11/17/2022 1455 MW-01 65.08 11/17/2022 857 MW-04 82.35
11/17/2022 1214 MW-02 109.65 11/17/2022 901 TW4-0l 101.06
11/17/2022 1005 MW-03A 83.90 11/17/2022 854 TW4-02 99.63
11/17/2022 1229 MW-05 108.08 11/17/2022 837 TW4-03 65.60
11/17/2022 1445 MW-II 85.33 11/17/2022 905 TW4-04 82.56
11/17/2022 1224 MW-12 109.53 11/17/2022 830 TW4-05 72.85
11/17/2022 1312 MW-14 101.55 11/17/2022 911 TW4-06 80.20
11/17/2022 1303 MW-15 105.27 11/17/2022 845 TW4-07 82.39
1111712022 952 MW-17 72.18 1111712022 841 TW4-08 85.51
11/1712022 1436 MW-18 73.83 11/1712022 827 TW4-09 70.93
11/17/2022 1427 MW-19 66.15 11/1712022 824 TW4-10 70.37
11/17/2022 1208 MW-20 89.27 11/17/2022 849 TW4-ll 90.41
11117/2022 1145 MW-22 66.35 11/17/2022 1013 TW4-l2 56.55
11/17/2022 1220 MW-23 115,28 11/17/2022 1009 TW4-13 57-82
I Ill 7/2022 1147 MW-24A I 10,37 11117/2022 1002 TW4-14 77.51
11/17/2022 1145 MW-24 109.21 11/17/2022 1027 TW4-16 74.39
1111712022 1433 MW-25 82.15 11/17/2022 739 TW4-18 74.06
11117/2022 1438 MW-26 84.29 11/1712022 1400 TW4-19 72.04
11/17/2022 1141 MW-27 58.79 11/1712022 735 TW4-21 72.25
11/17/2022 1152 MW-28 74.60 11/1712022 813 TW4-22 70.70
11/1712022 1155 MW-29 106.91 11/1712022 919 TW4-23 76.79
11117/2022 1049 MW-30 75.51 11/17/2022 810 TW4-24 69.69
11117/2022 1044 MW-31 69.75 11117/2022 745 TW4-25 69.95
11117/2022 1040 MW-32 82.93 11/1712022 915 TW4-26 75.06
11/17/2022 1246 MW-33 DRY 11117/2022 934 TW4-27 79.45
11/17/2022 1254 MW-34 107.25 11/17/2022 1017 TW4-28 49.58
I 1/17/2022 1235 MW-35 112.35 11/17/2022 957 TW4-29 79.36
11117/2022 1241 MW-36 110.52 11/17/2022 938 TW4-30 75.45
11/17/2022 1301 MW-37 107.66 11/17/2022 941 TW4-31 76.43
11/17/2022 I 159 MW-38 70.13 11117/2022 1020 TW4-32 57.32
11/17/2022 I 152 MW-39 64.39 11/17/2022 931 TW4-33 79.08
11/17/2022 944 MW-40 79.68 11117/2022 949 TW4-34 77.67
11117/2022 953 TW4-35 75.98
MW-26 = TW4-15 11/17/2022 1006 TW4-36 58.87
MW-32=TW4-17 11/17/2022 816 TW4-37 71.95
Comments: 11117/2022 834 TW4-38 60.70
11117/2022 820 TW4-39 7060
11/17/2022 923 TW4-40 72.34
11/17/2022 908 TW4-41 89.17
11/17/2022 928 TW4-42 70.96
11/17/2022 945 TW4-43 73.64
Date Time
11/17/2022 930
11/17/2022 925
11/17/2022 801
11/17/2022 1036
11/17/2022 1033
11/1712022 742
11/17/2022 749
11/1712022 753
11/17/2022 757
11/17/2022 1432
11/17/2022 1436
11/1712022 1422
11/17/2022 1417
11/17/2022 805
11/1712022 1410
11/17/2022 1445
1111712022 1448
11/17/2022 1354
11/1712022 1349
11/17/2022 1055
11/17/2022 1342
11117/2022 1337
I 1/1712022 1333
11/17/2022 1023
11/17/2022 1016
11/17/2022 1011
11117/2022 1323
11/17/2022 1328
11/17/2022 1318
11/17/2022 1304
11/17/2022 1300
11117/2022 1221
11/17/2022 1309
11/17/2022 1255
11/17/2022 1313
Well
PIEZ-01
PIEZ-02
PIEZ-03A
PlEZ-04
PIEZ-05
TWN-01
TWN-02
TWN-03
TWN-04
TWN-06
TWN-07
TWN-14
TWN-16
TWN-18
TWN-19
TWN-20
TWN-21
DR-05
DR-06
DR-07
DR-08
DR-09
DR-IO
DR-II
DR-12
DR-13
DR-14
DR-15
DR-17
DR-19
DR-20
OR-?.I
DR-22
DR-23
DR-24
Depth to
Water (ft.)
67.02
45.98
55.77
68.69
67.16
70.16
58.8]
43.80
62.85
80.68
80.56
59.42
47.84
62.96
54.51
78.18
79.18
83.15
94.13
91.72
51.22
86.55
78.37
97,88
DRY
69.51
76,15
92.81
64.64
63.25
55.40
100.49
DRY
70.51
44.53
@
TW4-43
3:t5523
TWN-20
[]5564
TW4-42
◊5524
MW-38
-9-5463
estimated dry area
temporary perched monitoring
well installed September, 2021
showing elevation in feet amsl
temporary perched nitrate monitoring
well installed April, 2021showing
elevation in feet amsl
temporary perched monitoring well
installed April, 2019 showing
elevation in feet amsl
perched monitoring well
installed February, 2018 showing
elevation in feet amsl
MW-S h d ·1 . II h . • 5504 perc e morn onng we s owing
elevation in feet amsl
TW4-12 0 5568 temporary perched monitoring well
showing elevation in feet amsl
TWN-7 h d . . . A.5569 temporary perc e nitrate monitoring
V well showing elevation in feet amsl
PIEZ-1 perched piezometer showing
~ 5588 elevation in feet amsl
RUIN SPRING b 5380 seep or spring showing
elevation in feet amsl
\
\
\ \
\
\
\
'
DR-10 DR-11
0
5482 · 5488
1 mile
\
' ' ....
.,
.abandoned <> lWN-11
C
!l>~IW~
lWN-ia st.J
ab~ioned
' ...
ab.iilJ/nod
--rwi,oa
lWN'(O
ib.t~ollcHI I n9N~
'Q
PIEZ-01
/llf U
M\11-19""
.,, -
.... ....... '1J).j!
562-0
5510 ..
5500
5490
S4ao
5470
: MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 are chloroform pumping wells;
TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumpln9 weHs;_TW4-11 water level is below the base of the Burro Canyon Formation
HYDRO
GEO
CHEM, INC.
KRIGED 4th QUARTER, 2022 WATER LEVELS
WHITE MESA SITE
APPROVED DATE REFERENCE
H:/718000/feb23/WL/Uwl1222.srf
FIGURE
D-
I
,·,.\,j;--,1~
•-'i ,"1•, .,~.._. -
-. .,,,~•~ ~J:-k~~\ l-s,~'~\~
estimated chloroform capture zone boundary
-_ stream tubes resulting from pumping. (note:
, '' combined capture shown for MW-4, TW4-1,
, TW4-2, TW4-4, TW4-11, TW4-40 and TW4-41; I I and for MW-26, TW4-19, TW4-21, TW4-25,
®
TW4-43
~5523
TWN-20
[J5564
TW4-42
¢5524
TW4-37 and TW4-39)
estimated nitrate capture zone boundary
stream tube resulting from pumping.
(note: combined capture shown for
TW4-22 and TW4-24)
estimated dry area
temporary perched monitoring
well installed September, 2021
showing elevation in feet amsl
temporary perched nitrate monitoring
well installed April, 2021showing
elevation in feet amsl
temporary perched monitoring well
installed April, 2019 showing
elevation in feet amsl
MW-3a perched monitoring well ◊5463 installed February, 2018 showing
elevation in feet amsl
MW-S h d . . II h . • 5504 perc e morntonng we s owing
elevation in feet amsl
DR-10 . 5482
DR-11
5488
\
\
\
'
\
' ' .....
'
•
abanioned
TWN-15
•~gQn~d
~0
abenioned
TWN-11
abandoned I iwi--0s
1']6
PIEZ--01
f 9 ,,
Wl-19""'
--
11UOiiJ OfMtl
TWfl-12
5525
5520
5510 '
I TW4-12
0 5568 temporary perched monitoring well
showing elevation in feet amsl
TWN-7 h d . ·1 .
NOTES: MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 are chloroform pumping wells;
TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells; TW4-11 water level is below the base of the Burro Canyon Formation
A.5569 temporary perc e nitrate morn onng
V well showing elevation in feet amsl
PIEZ-1 perched piezometer showing
Q 5588 elevation in feet amsl
RUIN SPRING o 5380 seep or spring showing
elevation in feet amsl
HYDRO
GEO
CHEM, INC. APPROVED
KRIGED 4th QUARTER, 2022 WATER LEVELS
AND ESTIMATED CAPTURE ZONES
WHITE MESA SITE
DATE REFERENCE
H:/718000/feb23/WL/Uwl1222cz2.srf
FIGURE
D-2
estimated chloroform capture zone boundary
~; -stream lubes resulting from pumping (note:
, , combined capture shown for MW-4, TW4-1 , I I TW4-2, TW4-4, TW4-1 1, TW4-40 and TW4-41 ;
and for MW-26, TW4-19, TW4-21 , TW4-25,
TW4-43
~5523
TW4-42
¢5524
MW-25
.5531
TW4-7
0 5539
PIEZ-2
g 5583
TW4-37 and TW4-39)
estimated nitrate capture zone boundary
stream tube resulting from pumping.
(note: combined capture shown for
TW4-22 and TW4-24)
temporary perched monitoring well
installed September, 2021 showing
elevation in feet amsl
temporary perched monitoring well
installed April, 2019 showing
elevation in feet amsl
perched monitoring well showing
elevation in feet amsl
temporary perched monitoring well
showing elevation in feet amsl
perched piezometer showing
elevation in feet amsl
\ ,. -----.:...' .....
""--'
.,,
...
fj'o~
_ 55,51.5
,2· .
.nr--5,55$
.,,,.
':, .
<:;j0'6~
5540
~ --•; ~~I -----5535
5532.s -
-0. -· ··--· ·-= 5530 -5528 , 55~8 §523. --, ,
TW4-2ll °;~IL ':-s?~?. 5
O -li52~ ~~ 'l~
-""'"' 5$~~
NOTES: MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 are chloroform pumping wells;
TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells; TW4-11 water level is below the base of the Burro Canyon Formation
HYDRO
GEO
KRIGED 4th QUARTER, 2022 WATER LEVELS
AND ESTIMATED CAPTURE ZONES
WHITE MESA SITE
detail map) CHEM, INC. APPROVED DATE REFERENCE FIGURE
H :/718000/feb23/WL/Uw1222cz.srf D-3
TabE
Kriged Previous Quarter Groundwater Contour Map
@
TW4-43
~5523
!• TWN-20
C 5564
TW4-42
Q 5524
MW-38
-<;-5463
-··-----...
estimated dry area
temporary perched monitoring
well installed September, 2021
showing elevation in feet amsl
temporary perched nitrate monitoring
well installed April, 2021 showing
elevation in feet amsl
temporary perched monitoring well
installed April, 2019 showing
elevation in feet amsl
perched monitoring well
installed February, 2018 showing
elevation in feet amsl
M;-~504 perched monitoring well showing
elevation in feet amsl
TW4-12 0 5568 temporary perched monitoring well
showing elevation in feet amsl
TWN-7 h d . . . A.5569 temporary perc e nitrate monitoring
V well showing elevation in feet amsl
PIEZ-1 perched piezometer showing
"1 5588 elevation in feet amsl
RUIN SPRING b 5380 seep or spring showing
elevation in feet amsl
<
\
' ' ' ' \
' \
DR-10 DR-11 . .
5482 5468 ,.,.
~
\
\
'
'
ablft'gOncd
TWN-11
_,
.....
..... ·~~d
.....
5584
rwtJa
I
at>IIO:JMd ~
I
,:J\.i.:inioned
TWN-09
55"8J
PIEJ-01 _,..
~8/
MW-19
, --_.
/
1 mite ~i . .., .. . _ .-.•. • ~ -• ·..,, -~ •\Jr' _,;,,,,,,J___..~
co
•blmf Oil<!a ~ TWN-12 Iii!/
lWN-1 --
5-100
NOTES: MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 are chloroform pumping wells;
TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells; TW4-11 water level Is below the base of the Burro Canyon Formation
HYDRO
GEO
CHEM,INC.
KRIGED 3rd QUARTER, 2022 WATER LEVELS
WHITE MESA SITE
APPROVED DATE REFERENCE
H:/7 18000/nov22/WUUwl0922.srf
FIGURE
E-1
TabF
Depths to Groundwater and Elevations and Hydrographs of Groundwater Elevations over Time for
Chloroform Monitoring Wells
Water Levels and Data over Time
White Mesa Mill -Well MW 4
Total or
Measuring Measured Total
Water Land Point Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,620.77 5,622.33 1.56 123.6
5,527.63 09/25/79 94.70 93.14
5,527.63 10/10/79 94.70 93.14
5,528.43 01/10/80 93.90 92.34
5,529.93 03/20/80 92.40 90.84
5,528.03 06/17/80 94.30 92.74
5,528.03 09/15/80 94.30 92.74
5,527.93 10/08/80 94.40 92.84
5,527.93 02/12/81 94.40 92.84
5,525.93 09/01/84 96.40 94.84
5,528.33 12/01/84 94.00 92.44
5,528.13 02/01/85 94.20 92.64
5,528.33 06/01/85 94.00 92.44
5,528.93 09/01/85 93.40 91.84
5,528.93 10/01/85 93.40 91.84
5,528.93 11/01/85 93.40 91.84
5,528.83 12/01/85 93.50 91.94
5,512.33 03/01/86 110.00 108.44
5,528.91 06/19/86 93.42 91.86
5,528.83 09/01/86 93.50 91.94
5,529.16 12/01/86 93.17 91.61
5,526.66 02/20/87 95 .67 94.11
5,529.16 04/28/87 93.17 91.61
5,529.08 08/14/87 93.25 91.69
5,529.00 11/20/87 93.33 91.77
5,528.75 01/26/88 93.58 92.02
5,528.91 06/01/88 93.42 91.86
5,528.25 08/23/88 94.08 92.52
5,529.00 11/02/88 93.33 91.77
5,528.33 03/09/89 94.00 92.44
5,529.10 06/21/89 93.23 91.67
5,529.06 09/01/89 93.27 91.71
5,529.21 11/15/89 93.12 91.56
5,529.22 02/16/90 93.11 91.55
5,529.43 05/08/90 92.90 91.34
5,529.40 08/07/90 92.93 91.37
5,529.53 11/13/90 92.80 91.24
5,529.86 02/27/91 92.47 90.91
5,529.91 05/21/91 92.42 90.86
5,529.77 08/27/91 92.56 91.00
5,529.79 12/03/91 92.54 90.98
5,530.13 03/17/92 92.20 90.64
5,529.85 06/11/92 92.48 90.92
5,529.90 09/13/92 92.43 90.87
Water Levels and Data over Time
White Mesa Mill -Well MW 4
Total or
Measuring Measured Total
Water Land Point Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,620.77 5,622.33 1.56 123.6
5,529.92 12/09/92 92.41 90.85
5,530.25 03/24/93 92.08 90.52
5,530.20 06/08/93 92.13 90.57
5,530.19 09/22/93 92.14 90.58
5,529.75 12/14/93 92.58 91.02
5,530.98 03/24/94 91.35 89.79
5,531.35 06/15/94 90.98 89.42
5,531.62 08/18/94 90.71 89.15
5,532.58 12/13/94 89.75 88.19
5,533.42 03/16/95 88.91 87.35
5,534.70 06/27/95 87.63 86.07
5,535.44 09/20/95 86.89 85.33
5,537.16 12/11/95 85.17 83.61
5,538.37 03/28/96 83.96 82.40
5,539.10 06/07/96 83.23 81.67
5,539.13 09/16/96 83.20 81.64
5,542.29 03/20/97 80.04 78.48
5,551.58 04/07/99 70.75 69.19
5,552.08 05/11/99 70.25 68.69
5,552.83 07/06/99 69.50 67.94
5,553.47 09/28/99 68.86 67.30
5,554.63 01/03/00 67.70 66.14
5,555.13 04/04/00 67.20 65.64
5,555.73 05/02/00 66.60 65.04
5,556.03 05/11/00 66.30 64.74
5,555.73 05/15/00 66.60 65.04
5,555.98 05/25/00 66.35 64.79
5,556.05 06/09/00 66.28 64.72
5,556.18 06/16/00 66.15 64.59
5,556.05 06/26/00 66.28 64.72
5,556.15 07/06/00 66.18 64.62
5,556.18 07/13/00 66.15 64.59
5,556.17 07/18/00 66.16 64.60
5,556.26 07/25/00 66.07 64.51
5,556.35 08/02/00 65.98 64.42
5,556.38 08/09/00 65.95 64.39
5,556.39 08/15/00 65.94 64.38
5,556.57 08/31/00 65.76 64.20
5,556.68 09/08/00 65.65 64.09
5,556.73 09/13/00 65.60 64.04
5,556.82 09/20/00 65.51 63.95
5,556.84 09/29/00 65.49 63.93
5,556.81 10/05/00 65.52 63.96
Water Levels and Data over Time
White Mesa Mill -Well MW 4
Total or
Measuring Measured Total
Water Land Point Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,620.77 5,622.33 1.56 123.6
5,556.89 10/12/00 65.44 63.88
5,556.98 10/19/00 65.35 63.79
5,557.01 10/23/00 65.32 63.76
5,557.14 11/09/00 65.19 63.63
5,557.17 11/14/00 65.16 63.60
5,556.95 11/21/00 65.38 63.82
5,557.08 11/30/00 65.25 63.69
5,557.55 12/07/00 64.78 63.22
5,557.66 01/14/01 64.67 63.11
5,557.78 02/09/01 64.55 62.99
5,558.28 03/29/01 64.05 62.49
5,558.23 04/30/01 64.10 62.54
5,558.31 05/31/01 64.02 62.46
5,558.49 06/22/01 63.84 62.28
5,558.66 07/10/01 63.67 62.11
5,559.01 08/20/01 63.32 61.76
5,559.24 09/19/01 63.09 61.53
5,559.26 10/02/01 63.07 61.51
5,559.27 11/08/01 63.06 61.50
5,559.77 12/03/01 62.56 61.00
5,559.78 01/03/02 62.55 60.99
5,559.96 02/06/02 62.37 60.81
5,560.16 03/26/02 62.17 60.61
5,560.28 04/09/02 62.05 60.49
5,560.76 05/23/02 61.57 60.01
5,560.58 06/05/02 61.75 60.19
5,560.43 07/08/02 61.90 60.34
5,560.44 08/23/02 61.89 60.33
5,560.71 09/11/02 61.62 60.06
5,560.89 10/23/02 61.44 59.88
5,557.86 11/22/02 64.47 62.91
5,561.10 12/03/02 61.23 59.67
5,561.39 01/09/03 60.94 59.38
5,561.41 02/12/03 60.92 59.36
5,561.93 03/26/03 60.40 58.84
5,561.85 04/02/03 60.48 58.92
5,536.62 05/01/03 85.71 84.15
5,528.56 06/09/03 93.77 92.21
5,535.28 07/07/03 87.05 85.49
5,534.44 08/04/03 87.89 86.33
5,537.10 09/11/03 85.23 83.67
5,539.96 10/02/03 82.37 80.81
5,535.91 11/07/03 86.42 84.86
Water Levels and Data over Time
White Mesa Mill -Well MW 4
Total or
Measuring Measured Total
Water Land Point Date Of Depth to Depth to Total
Elevation Surface E1evation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5 620.77 5,622.33 1.56 123.6
5,550.70 12/03/03 71.63 70.07
5,557.58 01/15/04 64.75 63.19
5,558.80 02/10/04 63.53 61.97
5,560.08 03/28/04 62.25 60.69
5,560.55 04/12/04 61.78 60.22
5,561.06 05/13/04 61.27 59.71
5,561.48 06/18/04 60.85 59.29
5,561.86 07/28/04 60.47 58.91
5,529.17 08/30/04 93.16 91.60
5,536.55 09/16/04 85.78 84.22
5,529.00 10/11/04 93.33 91.77
5,541.55 11/16/04 80.78 79.22
5,541.12 12/22/04 81.21 79.65
5,540.59 01/18/05 81.74 80.18
5,542.85 02/28/05 79.48 77.92
5,537.91 03/15/05 84.42 82.86
5,548.67 04/26/05 73.66 72.10
5,549.53 05/24/05 72.80 71.24
5,544.36 06/30/05 77.97 76.41
5,545.16 07/29/05 77.17 75.61
5,544.67 09/12/05 77.66 76.10
5,541.28 09/27/05 81.05 79.49
5,536.96 12/07/05 85.37 83.81
5,546.49 03/08/06 75.84 74.28
5,546.15 06/13/06 76.18 74.62
5,545.15 07/18/06 77.18 75.62
5,545.91 11/17/06 76.42 74.86
5,545.90 02/27/07 76.43 74.87
5,548.16 05/02/07 74.17 72.61
5,547.20 08/13/07 75.13 73.57
5,547.20 10/10/07 75.13 73.57
5,547.79 03/26/08 74.54 72.98
5,545.09 06/25/08 77.24 75.68
5,550.36 08/26/08 71.97 70.41
5,550.39 10/14/08 71.94 70.38
5,542.25 03/03/09 80.08 78.52
5,542.25 06/24/09 80.08 78.52
5,550.19 09/10/09 72.14 70.58
5,550.94 12/11/09 71.39 69.83
5,546.08 03/11/10 76.25 74.69
5,550.98 05/11/10 71.35 69.79
5,548.33 09/29/10 74.00 72.44
5,551.01 12/21/10 71.32 69.76
Water Levels and Data over Time
White Mesa Mill -Well MW 4
Total or
Measuring Measured Total
Water Land Point Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,620.77 5,622.33 1.56 123.6
5,547.00 02/28/11 75.33 73.77
5,557.54 06/21/11 64.79 63.23
5,551.14 09/20/11 71.19 69.63
5,550.32 12/21/11 72.01 70.45
5,551.22 03/27/12 71.11 69.55
5,551.29 06/28/12 71.04 69.48
5,550.29 09/27/12 72.04 70.48
5,549.31 12/28/12 73.02 71.46
5,552.30 03/28/13 70.03 68.47
5,550.18 06/27/13 72.15 70.59
5,552.55 09/27/13 69.78 68.22
5,553.23 12/20/13 69.10 67.54
5,551.91 03/27/14 70.42 68.86
5,552.93 06/25/14 69.40 67.84
5,552.23 09/25/14 70.10 68.54
5,552.08 12/17/14 70.25 68.69
5,551.13 03/26/15 71.20 69.64
5,556.02 06/22/15 66.31 64.75
5,543.38 09/30/15 78.95 77.39
5,551.13 12/02/15 71.20 69.64
5,542.10 03/30/16 80.23 78.67
5,542.31 06/30/16 80.02 78.46
5,540.96 09/29/16 81.37 79.81
5,540.65 12/21/16 81.68 80.12
5,542.05 03/30/17 80.28 78.72
5,550.28 06/27/17 72.05 70.49
5,534.84 09/28/17 87.49 85.93
5,532.41 11/30/17 89.92 88.36
5,534.64 03/28/18 87.69 86.13
5,539.53 06/22/18 82.80 81.24
5,537.04 09/24/18 85.29 83.73
5,537.82 12/17/18 84.51 82.95
5,536.10 03/25/19 86.23 84.67
5,536.20 06/24/19 86.13 84.57
5,538.67 08/12/19 83.66 82.10
5,533.67 11/18/19 88.66 87.10
5,525.79 02/10/20 96.54 94.98
5,533.63 05/04/20 88.70 87.14
5,536.94 09/21/20 85.39 83.83
5,535.31 12/28/20 87.02 85.46
5,539.70 03/11/21 82.63 81.07
5,540.44 06/24/21 81.89 80.33
5,540.65 08/13/21 81.68 80.12
Water Levels and Data over Time
White Mesa Mill -Well MW4
Total or
Measuring Date Of Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,620.77 5,622.33 1.56 123.6
5,539.10 12/30/21 83.23 81.67
5,539.70 02/10/22 82.63 81.07
5,540.38 06/28/22 81.95 80.39
5,540.67 08/15/22 81.66 80.10
5,539.98 11/17/22 82.35 80.79
...... tv 0
......
0 0
Depth Below Measuring Point (ft.)
00 0 0\ 0
.p.
0 ~ 0
09/25/79
02/06/81
06/21/82
11/03/83
03/17/85
07/30/86
12/12/87
04/25/89
09/07/90
01/20/92
06/03/93 ~ ~ 10/16/94 """ 02/28/96 ~
07/12/97 -~ "1
11/24/98 t::,
~
,. 04/07/00 "0 --08/20/01 =-0
-01/02/03 < ~ "1
-05/16/04 ~ ...
09/28/05 e ~
02/10/07 ---?
06/24/08 O" -11/06/09 e "0
03/21/11 '-'
08/02/12
12/15/13
04/29/15
-09/10/16
-01/23/18
06/07/19
-10/19/20
03/03/22
07/16/23
11/27/24
04/11/26
Water Levels and Data over Time
White Mesa Mill -Well MW-4A
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,620.51 5,622.31 1.80 121.33
5,560.53 08/23/02 61.78 59.98
5,560.76 09/11/02 61.55 59.75
5,560.96 10/23/02 61.35 59.55
5,561.00 11/22/02 61.31 59.51
5,561.19 12/03/02 61.12 59.32
5,561.46 01/09/03 60.85 59.05
5,561.48 02/12/03 60.83 59.03
5,561.96 03/26/03 60.35 58.55
5,561.94 04/02/03 60.37 58.57
5,536.88 05/01/03 85.43 83.63
5,529.35 06/09/03 92.96 91.16
5,535.54 07/07/03 86.77 84.97
5,534.74 08/04/03 87.57 85.77
5,536.74 09/11/03 85.57 83.77
5,540.24 10/02/03 82.07 80.27
5,536.13 11/07/03 86.18 84.38
5,550.77 12/03/03 71.54 69.74
5,557.67 01/15/04 64.64 62.84
5,558.87 02/10/04 63.44 61.64
5,560.16 03/28/04 62.15 60.35
5,560.63 04/12/04 61.68 59.88
5,561.14 05/13/04 61.17 59.37
5,561.56 06/18/04 60.75 58.95
5,561.95 07/28/04 60.36 58.56
5,529.25 08/30/04 93.06 91.26
5,536.63 09/16/04 85.68 83.88
5,529.08 10/11/04 93.23 91.43
5,541.63 11/16/04 80.68 78.88
5,541.20 12/22/04 81.11 79.31
5,540.67 01/18/05 81.64 79.84
5,543.45 02/28/05 78.86 77.06
5,537.99 03/15/05 84.32 82.52
5,549.27 04/26/05 73.04 71.24
5,545.08 05/24/05 77.23 75.43
5,544.94 06/30/05 77 .37 75.57
5,544.71 07/29/05 77.60 75.80
5,545.23 09/12/05 77.08 75.28
5,545.00 09/27/05 77.31 75.51
5,537.45 12/07/05 84.86 83.06
5,546.86 03/08/06 75.45 73.65
5,546.66 06/13/06 75 .65 73 .85
5,545.63 07/18/06 76.68 74.88
5,546.18 11/07/06 76.13 74.33
Water Levels and Data over Time
White Mesa Mill-Well MW-4A
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (hlw.LSD) Well
5,620.51 5,622.31 1.80 121.33
5,545.30 02/27/07 77.01 75.21
-0 '° 0 0
Depth Below Measuring Point (ft.)
00 0 -.J 0 0\ 0 Ut 0 ;!s t.>.l 0 N 0 -0 0
04/04/02
09/01/02
01/29/03
06/28/03
a:
11/25/03 ~ I ,l;::o.. >
04/23/04 ~ -~ ""l
09/20/04 0 ~ "CS -=--
02/17/05 0 < ~ ""l
07/17/05 ~ ... a ~ --12/14/05 ?
O"" -a
05/13/06 ~
10/10/06
03/09/07
08/06/07
Water Levels and Data over Time
White Mesa Mill -Well TW 4-1
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) WeJI
z 5,620.77 5,618.58 1.02 111.30
5,537.23 11/08/99 81.35 80.33
5,537.38 11/09/99 81.20 80.18
5,537.48 01/02/00 81.10 80.08
5,537.48 01/10/00 81.10 80.08
5,537.23 01/17/00 81.35 80.33
5,537.28 01/24/00 81.30 80.28
5,537.28 02/01/00 81.30 80.28
5,537.18 02/07/00 81.40 80.38
5,537.48 02/14/00 81.10 80.08
5,537.48 02/23/00 81.10 80.08
5,537.58 03/01/00 81.00 79.98
5,537.68 03/08/00 80.90 79.88
5,537.98 03/15/00 80.60 79.58
5,537.68 03/20/00 80.90 79.88
5,537.68 03/29/00 80.90 79.88
5,537.43 04/04/00 81.15 80.13
5,537.18 04/13/00 81.40 80.38
5,537.48 04/21/00 81.10 80.08
5,537.68 04/28/00 80.90 79.88
5,537.58 05/01/00 81.00 79.98
5,537.88 05/11/00 80.70 79.68
5,537.58 05/15/00 81.00 79.98
5,537.88 05/25/00 80.70 79.68
5,537.88 06/09/00 80.70 79.68
5,537.90 06/16/00 80.68 79.66
5,537.88 06/26/00 80.70 79.68
5,538.10 07/06/00 80.48 79.46
5,538.04 07/13/00 80.54 79.52
5,538.16 07/18/00 80.42 79.40
5,538.42 07/27/00 80.16 79.14
5,538.56 08/02/00 80.02 79.00
5,538.68 08/09/00 79.90 78.88
5,538.66 08/15/00 79.92 78.90
5,538.33 08/31/00 80.25 79.23
5,539.18 09/01/00 79.40 78.38
5,539.12 09/08/00 79.46 78.44
5,539.34 09/13/00 79.24 78.22
5,539.50 09/20/00 79.08 78.06
5,539.69 10/05/00 78.89 77.87
5,540.33 11/09/00 78.25 77.23
5,540.74 12/06/00 77.84 76.82
5,542.39 01/14/01 76.19 75.17
5,543.69 02/02/01 74.89 73.87
Water Levels and Data over Time
White Mesa Mill -Well TW 4-1
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
z 5,620.77 5,618.58 1.02 111.30
5,544.96 03/29/01 73.62 72.60
5,545.45 04/30/01 73.13 72.11
5,545.89 05/31/01 72.69 71.67
5,546.19 06/21/01 72.39 71.37
5,546.50 07/10/01 72.08 71.06
5,547.18 08/20/01 71.40 70.38
5,547.59 09/19/01 70.99 69.97
5,547.84 10/02/01 70.74 69.72
5,548.12 11/08/01 70.46 69.44
5,548.65 12/03/01 69.93 68.91
5,548.87 01/03/02 69.71 68.69
5,549.37 02/06/02 69.21 68.19
5,550.00 03/26/02 68.58 67.56
5,550.22 04/09/02 68.36 67.34
5,550.81 05/23/02 67.77 66.75
5,550.79 06/05/02 67.79 66.77
5,551.08 07/08/02 67.50 66.48
5,551.54 08/23/02 67.04 66.02
5,551.79 09/11/02 66.79 65.77
5,552.19 10/23/02 66.39 65.37
5,552.27 11/22/02 66.31 65.29
5,552.48 12/03/02 66.10 65.08
5,552.74 01/09/03 65.84 64.82
5,552.92 02/12/03 65.66 64.64
5,553.40 03/26/03 65.18 64.16
5,553.48 04/02/03 65.10 64.08
5,552.32 05/01/03 66.26 65.24
5,550.53 06/09/03 68.05 67.03
5,550.09 07/07/03 68.49 67.47
5,549.64 08/04/03 68.94 67.92
5,549.31 09/11/03 69.27 68.25
5,549.58 10/02/03 69.00 67.98
5,549.50 11/07/03 69.08 68.06
5,550.07 12/03/03 68.51 67.49
5,551.86 01/15/04 66.72 65.70
5,552.57 02/10/04 66.01 64.99
5,553.63 03/28/04 64.95 63.93
5,554.04 04/12/04 64.54 63.52
5,554.60 05/13/04 63.98 62.96
5,556.28 06/18/04 62.30 61.28
5,556.61 07/28/04 61.97 60.95
5,554.21 08/30/04 64.37 63.35
5,553.49 09/16/04 65.09 64.07
Water Levels and Data over Time
White Mesa Mill -Well TW 4-1
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
z 5,620.77 5,618.58 1.02 111.30
5,552.53 10/11/04 66.05 65.03
5,552.42 11/16/04 66.16 65.14
5,552.46 12/22/04 66.12 65.10
5,552.07 01/18/05 66.51 65.49
5,552.21 02/28/05 66.37 65.35
5,552.26 03/15/05 66.32 65.30
5,552.30 04/26/05 66.28 65.26
5,552.25 05/24/05 66.33 65.31
5,552.22 06/30/05 66.36 65.34
5,552.15 07/29/05 66.43 65.41
5,552.47 09/12/05 66.11 65.09
5,552.50 12/07/05 66.08 65.06
5,552.96 03/08/06 65.62 64.60
5,553.23 06/14/06 65.35 64.33
5,557.20 07/18/06 61.38 60.36
5,553.32 11/07/06 65.26 64.24
5,554.35 02/27/07 64.23 63.21
5,554.07 05/02/07 64.51 63.49
5,554.07 08/14/07 64.51 63.49
5,553.88 10/10/07 64.70 63.68
5,555.73 03/26/08 62.85 61.83
5,556.60 06/24/08 61.98 60.96
5,556.83 08/26/08 61.75 60.73
5,556.87 10/14/08 61.71 60.69
5,556.90 03/10/09 61.68 60.66
5,556.91 06/24/09 61.67 60.65
5,556.61 09/10/09 61.97 60.95
5,556.78 12/11/09 61.8 60.78
5,556.75 03/11/10 61.83 60.81
5,556.19 05/11/10 62.39 61.37
5,555.26 09/29/10 63.32 62.30
5,554.66 12/21/10 63.92 62.90
5,554.74 02/28/11 63.84 62.82
5,554.57 06/21/11 64.01 62.99
5,554.13 09/20/11 64.45 63.43
5,554.54 12/21/11 64.04 63.02
5,553.64 03/27/12 64.94 63.92
5,553.66 06/28/12 64.92 63.90
5,553.73 09/27/12 64.85 63.83
5,553.59 12/28/12 64.99 63.97
5,554.73 03/28/13 63.85 62.83
5,554.44 06/27/13 64.14 63.12
5,554.37 09/27/13 64.21 63.19
Water Levels and Data over Time
White Mesa Mill -Well TW 4-1
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
z 5,620.77 5,618.58 1.02 111.30
5,553.92 12/20/13 64.66 63.64
5,553.20 03/27/14 65.38 64.36
5,552.20 06/25/14 66.38 65.36
5,551.13 09/25/14 67.45 66.43
5,550.72 12/17/14 67.86 66.84
5,546.50 03/26/15 72.08 71.06
5,544.18 06/22/15 74.40 73.38
5,535.85 09/30/15 82.73 81.71
5,529.54 12/02/15 89.04 88.02
5,527.55 03/30/16 91.03 90.01
5,525.92 06/30/16 92.66 91.64
5,524.48 09/29/16 94.10 93.08
5,533.15 12/21/16 85.43 84.41
5,527.92 03/30/17 90.66 89.64
5,534.48 06/27/17 84.10 83.08
5,524.98 09/28/17 93.60 92.58
5,525.88 11/30/17 92.70 91.68
5,526.18 03/28/18 92.40 91.38
5,515.78 06/22/18 102.80 101.78
5,510.83 09/24/18 107.75 106.73
5,542.47 12/17/18 76.11 75.09
5,531.82 03/25/19 86.76 85.74
5,539.90 06/24/19 78.68 77.66
5,538.56 08/12/19 80.02 79.00
5,510.85 11/18/19 107.73 106.71
5,513.12 02/10/20 105.46 104.44
5,512.44 05/04/20 106.14 105.12
5,517.82 09/21/20 100.76 99.74
5,520.38 12/28/20 98.20 97.18
5,513.47 03/11/21 105.11 104.09
5,513.44 06/24/21 105.14 104.12
5,515.25 08/13/21 103.33 102.31
5,513.03 12/30/21 105.55 104.53
5,513.17 02/10/22 105.41 104.39
5,513.35 06/28/22 105.23 104.21
5,518.60 08/15/22 99.98 98.96
5,517.52 11/17/22 101.06 100.04
......
N 0
...... ......
0
Depth Below Measuring Point (ft.)
......
8 \0 0 00 0 --..J 0 0\ 0
V,
0
11/08/99
-09/03/00
-06/30/01
04/26/02
-02/20/03
-12/17/03
-10/12/04
08/08/05
-06/04/06 ~
-03/31/07 ~ ,&;;;..
I
-01/25/08 """' ~ -11/20/08 """ ~
-09/16/09 "1
t:,
-07/13/10 ~ "0
05/09/11 ;,
0
03/04/12 < ~ "1
12/29/12 ~ ....
-10/25/13 a ~ ----08/21/14 ~
-06/17/15 i::::r -a
04/12/16 "0 '-'
-02/06/17
• 12/03/17
09/29/18
• 07/26/19
05/21/20
03/17/21
01/11/22
-11/07/22
09/03/23
06/29/24
Water Levels and Data over Time
White Mesa Mill-Well TW4-2
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,623.10 5 624.72 1.62 120.900
5,548.57 11/08/99 76.15 74.53
5,548.57 11/09/99 76.15 74.53
5,548.32 01/02/00 76.40 74.78
5,548.52 01/10/00 76.20 74.58
5,548.32 01/17/00 76.40 74.78
5,548.72 01/24/00 76.00 74.38
5,548.62 02/01/00 76.10 74.48
5,548.62 02/07/00 76.10 74.48
5,549.02 02/14/00 75.70 74.08
5,549.12 02/23/00 75.60 73.98
5,549.22 03/01/00 75.50 73.88
5,549.32 03/08/00 75.40 73.78
5,549.22 03/15/00 75.50 73.88
5,549.92 03/20/00 74.80 73.18
5,549.72 03/29/00 75.00 73.38
5,549.42 04/04/00 75.30 73.68
5,549.52 04/13/00 75.20 73.58
5,549.72 04/21/00 75.00 73.38
5,549.82 04/28/00 74.90 73.28
5,549.82 05/01/00 74.90 73.28
5,550.12 05/11/00 74.60 72.98
5,549.82 05/15/00 74.90 73.28
5,550.12 05/25/00 74.60 72.98
5,550.12 06/09/00 74.60 72.98
5,550.22 06/16/00 74.50 72.88
5,550.07 06/26/00 74.65 73.03
5,550.17 07/06/00 74.55 72.93
5,550.17 07/13/00 74.55 72.93
5,550.18 07/18/00 74.54 72.92
5,550.33 07/27/00 74.39 72.77
5,550.38 08/02/00 74.34 72.72
5,550.40 08/09/00 74.32 72.70
5,550.42 08/15/00 74.30 72.68
5,550.54 08/31/00 74.18 72.56
5,550.87 09/08/00 73.85 72.23
5,550.97 09/13/00 73.75 72.13
5,551.04 09/20/00 73.68 72.06
5,545.83 10/05/00 78.89 77.27
5,546.47 I 1/09/00 78.25 76.63
5,546.88 12/06/00 77.84 76.22
5,552.18 01/26/01 72.54 70.92
5,552.20 02/02/01 72.52 70.90
5,551.10 03/29/01 73.62 72.00
Water Levels and Data over Time
White Mesa Mill-Well TW4-2
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,623.10 5,624.72 1.62 120.900
5,551.59 04/30/01 73.13 71.51
5,552.03 05/31/01 72.69 71.07
5,552.33 06/21/01 72.39 70.77
5,552.64 07/10/01 72.08 70.46
5,553.32 08/20/01 71.40 69.78
5,553.73 09/19/01 70.99 69.37
5,553.98 10/02/01 70.74 69.12
5,554.14 11/08/01 70.58 68.96
5,554.79 12/03/01 69.93 68.31
5,554.74 01/03/02 69.98 68.36
5,554.91 02/06/02 69.81 68.19
5,555.15 03/26/02 69.57 67.95
5,555.39 04/09/02 69.33 67.71
5,555.73 05/23/02 68.99 67.37
5,555.79 06/05/02 68.93 67.31
5,555.91 07/08/02 68.81 67.19
5,556.04 08/23/02 68.68 67.06
5,556.25 09/11/02 68.47 66.85
5,556.72 10/23/02 68.00 66.38
5,556.42 11/22/02 68.30 66.68
5,557.01 12/03/02 67.71 66.09
5,557.20 01/09/03 67.52 65.90
5,557.35 02/12/03 67.37 65.75
5,557.83 03/26/03 66.89 65.27
5,557.87 04/02/03 66.85 65.23
5,553.71 05/01/03 71.01 69.39
5,548.98 06/09/03 75.74 74.12
5,548.14 07/07/03 76.58 74.96
5,547.75 08/04/03 76.97 75.35
5,547.22 09/11/03 77.50 75.88
5,547.68 10/02/03 77.04 75.42
5,547.52 11/07/03 77.20 75.58
5,548.29 12/03/03 76.43 74.81
5,554.00 01/15/04 70.72 69.10
5,555.46 02/10/04 69.26 67.64
5,556.90 03/28/04 67.82 66.20
5,557.49 04/12/04 67.23 65.61
5,558.07 05/13/04 66.65 65.03
5,558.19 06/18/04 66.53 64.91
5,559.00 07/28/04 65.72 64.10
5,554.26 08/30/04 70.46 68.84
5,551.97 09/16/04 72.75 71.13
5,549.65 10/11/04 75.07 73.45
Water Levels and Data over Time
White Mesa Mill -Well TW4-2
Total or
Measuring Measured Total
Water Land · Point Depth to Depth to Total
Elevation Surlace Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,623.10 5,624.72 1.62 120.900
5,549.89 11/16/04 74.83 73.21
5,550.37 12/22/04 74.35 72.73
5,549.95 01/18/05 74.77 73.15
5,550.09 02/28/05 74.63 73.01
5,550.13 03/15/05 74.59 72.97
5,550.18 04/26/05 74.54 72.92
5,550.32 05/24/05 74.40 72.78
5,550.21 06/30/05 74.51 72.89
5,550.11 07/29/05 74.61 72.99
5,550.33 09/12/05 74.39 72.77
5,550.29 12/07/05 74.43 72.81
5,551.30 03/08/06 73.42 71.80
5,551.42 06/14/06 73.30 71.68
5,550.52 07/18/06 74.20 72.58
5,550.52 11/07/06 74.20 72.58
5,552.89 02/27/07 71.83 70.21
5,552.06 05/02/07 72.66 71.04
5,552.02 08/14/07 72.70 71.08
5,552.20 10/10/07 72.52 70.90
5,554.58 03/26/08 70.14 68.52
5,555.23 06/24/08 69.49 67.87
5,555.29 08/26/08 69.43 67.81
5,555.43 10/14/08 69.29 67.67
5,555.73 03/10/09 68.99 67.37
5,556.25 06/24/09 68.47 66.85
5,555.94 09/10/09 68.78 67.16
5,556.53 12/11/09 68.19 66.57
5,557.87 03/11/10 66.85 65.23
5,557.63 05/11/10 67.09 65.47
5,557.24 09/29/10 67.48 65.86
5,557.00 12/21/10 67.72 66.10
5,557.61 02/28/11 67.11 65.49
5,557.58 06/21/11 67.14 65.52
5,557.46 09/20/11 67.26 65.64
5,557.84 12/21/11 66.88 65.26
5,557.86 03/27/12 66.86 65.24
5,557.87 06/28/12 66.85 65.23
5,557.46 09/27/12 67.26 65.64
5,557.82 12/28/12 66.90 65.28
5,559.39 03/28/13 65.33 63.71
5,559.21 06/27/13 65.51 63.89
5,559.26 09/27/13 65.46 63.84
5,559.27 12/20/13 65.45 63.83
Water Levels and Data over Time
White Mesa Mill -Well TW4-2
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,623.10 5,624.72 1.62 120.900
5,558.92 03/27/14 65.80 64.18
5,557.99 06/25/14 66.73 65.11
5,557.09 09/25/14 67.63 66.01
5,557.07 12/17/14 67.65 66.03
5,549.93 03/26/15 74.79 73.17
5,551.30 06/22/15 73.42 71.80
5,547.12 09/30/15 77.60 75.98
5,538.34 12/02/15 86.38 84.76
5,542.22 03/30/16 82.50 80.88
5,538.31 06/30/16 86.41 84.79
5,536.70 09/29/16 88.02 86.40
5,540.40 12/21/16 84.32 82.70
5,536.61 03/30/17 88.11 86.49
5,547.16 06/27/17 77.56 75.94
5,522.65 09/28/17 102.07 100.45
5,532.64 11/30/17 92.08 90.46
5,506.94 03/28/18 117.78 116.16
5,521.60 06/22/18 103.12 101.50
5,510.01 09/24/18 114.71 113.09
5,543.01 12/17/18 81.71 80.09
5,522.70 03/25/19 102.02 100.40
5,522.49 06/24/19 102.23 100.61
5,522.29 08/12/19 102.43 100.81
5,515.62 11/18/19 109.10 107.48
5,516.60 02/10/20 108.12 106.5
5,514.51 05/04/20 110.21 108.59
5,522.29 09/21/20 102.43 100.81
5,521.08 12/28/20 103.64 102.02
5,513.42 03/11/21 111.30 109.68
5,513.51 06/24/21 111.21 109.59
5,526.62 08/13/21 98.10 96.48
5,514.01 12/30/21 110.71 109.09
5,513.52 02/10/22 111.20 109.58
5,514.54 06/28/22 110.18 108.56
5,566.52 08/15/22 58.20 56.58
5,525.09 11/17/22 99.63 98.01
.....
u.l 0
.....
N 0
.....
0
Depth Below Measuring Point (ft.)
.....
0 0 '° 0 00 0 -.I O'I 0 0
Ul 0
11/08/99
-09/03/00
06/30/01
04/26/02
-02/20/03
12/17/03
-10/12/04
08/08/05
-06/04/06 ~
-03/31/07 ~ ,&;;;.. I
-01/25/08 N
~ -11/20/08
""'" t'0
09/16/09 "'1
~
-07/13/10 t'0 "Cl
""'" 05/09/11 =-0
03/04/12 < t'0 "'1
12/29/12 ~ ...
10/25/13 e t'0 ---08/21/14 ?
06/17/15 C"' -e
04/12/16 "Cl '-'
02/06/17
12/03/17
09/29/18
-07/26/19
05/21/20
03/17/21
01/11/22
11/07/22
09/03/23
06/29/24
Water Levels and Data over Time
White Mesa Mill -Well TW 4-3
Total or
Measuring Measured Total
Water Land Point Depth to Depth to
Elevation Surface Elevation Length Of Date Of Water Water
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Total Depth Of Well
5,631.21 5,632.23 1.02 140.30
5,565.78 11/29/99 66.45 65.43
5,566.93 1/2/00 65.30 64.28
5,567.03 1/10/00 65.20 64.18
5,566.83 1/17/00 65.40 64.38
5,567.13 1/24/00 65.10 64.08
5,567.33 2/1/00 64.90 63.88
5,567.13 2/7/00 65.10 64.08
5,567.43 2/14/00 64.80 63.78
5,567.63 2/23/00 64.60 63.58
5,567.73 3/1/00 64.50 63.48
5,567.83 3/8/00 64.40 63.38
5,567.70 3/15/00 64.53 63.51
5,568.03 3/20/00 64.20 63.18
5,567.93 3/29/00 64.30 63.28
5,567.63 4/4/00 64.60 63.58
5,567.83 4/13/00 64.40 63.38
5,568.03 4/21/00 64.20 63.18
5,568.23 4/28/00 64.00 62.98
5,568.13 5/1/00 64.10 63.08
5,568.53 5/11/00 63.70 62.68
5,568.23 5/15/00 64.00 62.98
5,568.53 5/25/00 63.70 62.68
5,568.61 6/9/00 63.62 62.60
5,568.69 6/16/00 63.54 62.52
5,568.45 6/26/00 63.78 62.76
5,568.61 7/6/00 63.62 62.60
5,568.61 7/6/00 63.62 62.60
5,568.49 7/13/00 63.74 62.72
5,568.55 7/18/00 63.68 62.66
5,568.65 7/27/00 63.58 62.56
5,568.73 8/2/00 63.50 62.48
5,568.77 8/9/00 63.46 62.44
5,568.76 8/16/00 63.47 62.45
5,568.95 8/31/00 63.28 62.26
5,568.49 9/8/00 63.74 62.72
5,568.67 9/13/00 63.56 62.54
5,568.96 9/20/00 63.27 62.25
5,568.93 10/5/00 63.30 62.28
5,569.34 11/9/00 62.89 61.87
5,568.79 12/6/00 63.44 62.42
5,569.11 1/3/01 63.12 62.10
5,569.75 2/9/01 62.48 61.46
5,570.34 3/28/01 61.89 60.87
Water Levels and Data over Time
White Mesa Mill -Well TW 4-3
Total or
Measuring Measured Total
Water Land Point Depth to Depth to
Elevation Surface Elevation Length Of Date Of Water Water
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Total Depth Of Well
5,631.21 5,632.23 1.02 140.30
5,570.61 4/30/01 61.62 60.60
5,570.70 5/31/01 61.53 60.51
5,570.88 6/21/01 61.35 60.33
5,571.02 7/10/01 61.21 60.19
5,571.70 8/20/01 60.53 59.51
5,572.12 9/19/01 60.11 59.09
5,572.08 10/2/01 60.15 59.13
5,572.78 11/8/01 59.45 58.43
5,573.27 12/3/01 58.96 57.94
5,573.47 1/3/02 58.76 57.74
5,573.93 2/6/02 58.30 57.28
5,574.75 3/26/02 57.48 56.46
5,574.26 4/9/02 57.97 56.95
5,575.39 5/23/02 56.84 55.82
5,574.84 6/5/02 57.39 56.37
5,575.33 7/8/02 56.90 55.88
5,575.79 8/23/02 56.44 55.42
5,576.08 9/11/02 56.15 55.13
5,576.30 10/23/02 55.93 54.91
5,576.35 11/22/02 55.88 54.86
5,576.54 12/3/02 55.69 54.67
5,576.96 1/9/03 55.27 54.25
5,577.11 2/12/03 55.12 54.10
5,577.61 3/26/03 54.62 53.60
5,572.80 4/2/03 59.43 58.41
5,577.89 5/1/03 54.34 53.32
5,577.91 6/9/03 54.32 53.30
5,577.53 7/7/03 54.70 53.68
5,577.50 8/4/03 54.73 53.71
5,577.71 9/11/03 54.52 53.50
5,577.31 10/2/03 54.92 53.90
5,577.33 11/7/03 54.90 53.88
5,577.34 12/3/03 54.89 53.87
5,578.24 1/15/04 53.99 52.97
5,578.38 2/10/04 53.85 52.83
5,578.69 3/28/04 53.54 52.52
5,579.15 4/12/04 53.08 52.06
5,579.47 5/13/04 52.76 51.74
5,579.53 6/18/04 52.70 51.68
5,580.17 7/28/04 52.06 51.04
5,580.20 8/30/04 52.03 51.01
5,580.26 9/16/04 51.97 50.95
5,580.12 10/11/04 52.11 51.09
Water Levels and Data over Time
White Mesa Mill -Well TW 4-3
Total or
Measuring Measured Total
Water Land Point Depth to Depth to
Elevation Surface Elevation Length Of Date Of Water Water
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Total Depth Of Well
5,631.21 5,632.23 1.02 140.30
5,579.93 11/16/04 52.30 51.28
5,580.07 12/22/04 52.16 51.14
5,579.80 1/18/05 52.43 51.41
5,580.35 2/28/05 51.88 50.86
5,580.57 3/15/05 51.66 50.64
5,580.86 4/26/05 51.37 50.35
5,581.20 5/24/05 51.03 50.01
5,581.51 6/30/05 50.72 49.70
5,581.55 7/29/05 50.68 49.66
5,581.68 9/12/05 50.55 49.53
5,581.83 12/7/05 50.40 49.38
5,564.92 3/8/06 67.31 66.29
5,582.73 6/13/06 49.50 48.48
5,582.33 7/18/06 49.90 48.88
5,582.75 11/7/06 49.48 48.46
5,583.35 2/27/07 48.88 47.86
5,559.57 5/2/07 72.66 71.64
5,583.29 8/14/07 48.94 47.92
5,583.49 10/10/07 48.74 47.72
5,584.95 3/26/08 47.28 46.26
5,584.59 6/24/08 47.64 46.62
5,584.55 8/26/08 47.68 46.66
5,584.03 10/14/08 48.20 47.18
5,583 .64 3/3/09 48.59 47.57
5,587.34 6/24/09 44.89 43.87
5,582.90 9/10/09 49.33 48.31
5,583.27 12/11/09 48.96 47.94
5,583.63 3/11/10 48.60 47.58
5,583.82 5/11/10 48.41 47.39
5,583.51 9/29/10 48.72 47.70
5,582.86 12/21/10 49.37 48.35
5,582.60 2/28/11 49.63 48.61
5,590.00 6/21/11 42.23 41.21
5,582.70 9/20/11 49.53 48.51
5,583.05 12/21/11 49.18 48.16
5,581.93 3/27/12 50.30 49.28
5,582.03 6/28/12 50.20 49.18
5,582.08 9/27/12 50.15 49.13
5,581.94 12/28/12 50.29 49.27
5,581.52 3/28/13 50.71 49.69
5,580.88 6/27/13 51.35 50.33
5,580.58 9/27/13 51.65 50.63
5,580.38 12/20/13 51.85 50.83
Water Levels and Data over Time
White Mesa Mill -Well TW 4-3
Total or
Measuring Measured Total
Water Land Point Depth to Depth to
Elevation Surface Elevation Length Of Date Of Water Water
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Total Depth Of Well
5,631.21 5,632.23 1.02 140.30
5,579.62 3/27/14 52.61 51.59
5,578.52 6/25/14 53.71 52.69
5,577.59 9/25/14 54.64 53.62
5,577.40 12/17/14 54.83 53.81
5,576.73 3/26/15 55.50 54.48
5,576.62 6/22/15 55.61 54.59
5,576.16 9/30/15 56.07 55.05
5,575.57 12/2/15 56.66 55.64
5,575.62 3/30/16 56.61 55.59
5,574.89 6/30/16 57.34 56.32
5,574.37 9/29/16 57.86 56.84
5,574.23 12/21/16 58.00 56.98
5,574.23 3/30/17 58.00 56.98
5,573.72 6/27/17 58.51 57.49
5,573.28 9/28/17 58.95 57.93
5,572.66 11/30/17 59.57 58.55
5,572.19 3/28/18 60.04 59.02
5,571.83 6/22/18 60.40 59.38
5,571.34 9/25/18 60.89 59.87
5,570.99 12/17/18 61.24 60.22
5,570.21 3/25/19 62.02 61.00
5,570.28 6/24/19 61.95 60.93
5,570.04 8/12/19 62.19 61.17
5,569.68 11/18/19 62.55 61.53
5,569.35 2/10/20 62.88 61.86
5,568.92 5/4/20 63.31 62.29
5,568.38 9/22/20 63.85 62.83
5,568.28 12/30/20 63.95 62.93
5,568.31 3/11/21 63.92 62.90
5,567.65 6/24/21 64.58 63.56
5,567.61 8/13/21 64.62 63.60
5,567.72 12/30/21 64.51 63.49
5,567.15 2/10/22 65.08 64.06
5,567.57 6/28/22 64.66 63.64
5,566.83 8/15/22 65.40 64.38
5,566.63 11/17/22 65.60 64.58
-.J VI -.J 0
Depth Below Measuring Point (ft.)
0\ VI 0\ 0 VI VI VI 0 ~ VI ~ 0
' 11/29/99
04/27/00
09/24/00
02/21/01
07/21/01
12/18/01
05/17/02
10/14/02
03/13/03
08/10/03
01/07/04
06/05/04
11/02/04
04/01/05
08/29/05
01/26/06
06/25/06
-11/22/06
04/21/07
09/18/07
-02/15/08
07/14/08
12/11/08
05/10/09
10/07/09
-03/06/10
08/03/10
12/31/10
05/30/11
10/27/11
03/25/12
08/22/12
01/19/13
06/18/13
11/15/13
04/14/14
09/11/14
02/08/15
07/08/15
12/05/15
05/03/16
09/30/16
02/27/17
-07/27/17
12/24/17
05/23/18
10/20/18
03/19/19
08/16/19
01/13/20
06/11/20
11/08/20
04/07/21
09/04/21
02/01/22
07/01/22
11/28/22
04/27/23
09/24/23
.____ __ __.__ __ ___.__ __ ___JL------'------'--------'----'-02/21/24
~ ~ ~ I ~
~ ;-
'"1
0 ~ ~ ~
0 < ~ '"1
~ .... a ~ ,-._
?
'r::f
! _,
Water Levels and Data over Time
White Mesa Mill -Well TW 4-4
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,612.301 5,613.485 1.184 114.5
5,512.15 05/25/00 101.34 100.16
5,518.99 06/09/00 94.50 93.32
5,512.15 06/16/00 101.34 100.16
5,517.47 06/26/00 96.02 94.84
5,520.15 07/06/00 93.34 92.16
5,521.44 07/13/00 92.05 90.87
5,522.01 07/18/00 91.48 90.30
5,522.95 07/27/00 90.54 89.36
5,523.49 08/02/00 90.00 88.82
5,523.85 08/09/00 89.64 88.46
5,523.89 08/15/00 89.60 88.42
5,524.56 09/01/00 88.93 87.75
5,513.24 09/08/00 100.25 99.07
5,516.67 09/13/00 96.82 95.64
5,519.09 09/20/00 94.40 93.22
5,522.17 10/05/00 91.32 90.14
5,524.67 11/09/00 88.82 87.64
5,518.55 12/06/00 94.94 93.76
5,527.70 01/03/01 85.79 84.61
5,529.09 02/09/01 84.40 83.22
5,529.54 03/27/01 83.95 82.77
5,530.24 04/30/01 83.25 82.07
5,530.27 05/31/01 83.22 82.04
5,534.41 06/22/01 79.08 77.90
5,533.15 07/10/01 80.34 79.16
5,534.04 08/20/01 79.45 78.27
5,534.47 09/19/01 79.02 77.84
5,533.29 10/02/01 80.20 79.02
5,533.87 11/08/01 79.62 78.44
5,534.28 12/03/01 79.21 78.03
5,534.72 01/03/02 78.77 77.59
5,535.44 02/06/02 78.05 76.87
5,536.45 03/26/02 77.04 75.86
5,536.41 04/09/02 77.08 75.90
5,537.34 05/23/02 76.15 74.97
5,537.33 06/05/02 76.16 74.98
5,537.98 07/08/02 75.51 74.33
5,538.83 08/23/02 74.66 73.48
5,539.28 09/11/02 74.21 73.03
5,539.77 10/23/02 73.72 72.54
5,540.21 11/22/02 73.28 72.10
5,540.30 12/03/02 73.19 72.01
5,540.80 01/09/03 72.69 71.51
Water Levels and Data over Time
White Mesa Mill -Well TW 4-4
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) WeU
5,612.301 5,613.485 1.184 114.5
5,540.99 02/12/03 72.50 71.32
5,541.68 03/26/03 71.81 70.63
5,541.77 04/02/03 71.72 70.54
5,541.89 05/01/03 71.60 70.42
5,542.03 06/09/03 71.46 70.28
5,541.93 07/07/03 71.56 70.38
5,541.89 08/04/03 71.60 70.42
5,541.83 09/11/03 71.66 70.48
5,541.89 10/02/03 71.60 70.42
5,542.00 11/07/03 71.49 70.31
5,542.01 12/03/03 71.48 70.30
5,542.56 01/15/04 70.93 69.75
5,542.71 02/10/04 70.78 69.60
5,543.23 03/28/04 70.26 69.08
5,543.56 04/12/04 69.93 68.75
5,543.87 05/13/04 69.62 68.44
5,543.92 06/18/04 69.57 68.39
5,544.66 07/28/04 68.83 67.65
5,544.80 08/30/04 68.69 67.51
5,544.85 09/16/04 68.64 67.46
5,544.71 10/11/04 68.78 67.60
5,544.53 11/16/04 68.96 67.78
5,544.63 12/22/04 68.86 67.68
5,544.31 01/18/05 69.18 68.00
5,544.59 02/28/05 68.90 67.72
5,544.69 03/15/05 68.80 67.62
5,544.68 04/26/05 68.81 67.63
5,544.79 05/24/05 68.70 67.52
5,544.80 06/30/05 68.69 67.51
5,544.78 07/29/05 68.71 67.53
5,545.01 09/12/05 68.48 67.30
5,545.23 12/07/05 68.26 67.08
5,545.74 03/08/06 67.75 66.57
5,545.79 06/14/06 67.70 66.52
5,545.86 07/18/06 67.63 66.45
5,545.81 11/07/06 67.68 66.50
5,546.68 02/27/07 66.81 65.63
5,546.54 05/02/07 66.95 65.77
5,547.16 08/15/07 66.33 65.15
5,547.22 10/10/07 66.27 65.09
5,548.31 03/26/08 65.18 64.00
5,548.87 06/24/08 64.62 63.44
5,549.24 08/26/08 64.25 63.07
Water Levels and Data over Time
White Mesa Mill -Well TW 4-4
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,612.301 5,613.485 1.184 114.5
5,549.31 10/14/08 64.18 63.00
5,549.73 03/03/09 63.76 62.58
5,549.91 06/24/09 63.58 62.40
5,549.70 09/10/09 63.79 62.61
5,549.87 12/11/09 63.62 62.44
5,545.60 03/11/10 67.89 66.71
5,530.88 05/11/10 82.61 81.43
5,545.24 09/29/10 68.25 67.07
5,533.66 12/21/10 79.83 78.65
5,544.44 02/28/11 69.05 67.87
5,543.73 06/21/11 69.76 68.58
5,540.48 09/20/11 73.01 71.83
5,544.36 12/21/11 69.13 67.95
5,543.48 03/27/12 70.01 68.83
5,543.49 06/28/12 70.00 68.82
5,543.36 09/27/12 70.13 68.95
5,543.51 12/28/12 69.98 68.80
5,543.49 03/28/13 70.00 68.82
5,543.36 06/27/13 70.13 68.95
5,544.59 09/27/13 68.90 67.72
5,543.33 12/20/13 70.16 68.98
5,544.11 03/27/14 69.38 68.20
5,543.61 06/25/14 69.88 68.70
5,543.67 09/25/14 69.82 68.64
5,543.69 12/17/14 69.80 68.62
5,541.49 03/26/15 72.00 70.82
5,539.67 06/22/15 73.82 72.64
5,541.35 09/30/15 72.14 70.96
5,541.63 12/02/15 71.86 70.68
5,540.38 03/30/16 73.11 71.93
5,539.46 06/30/16 74.03 72.85
5,540.39 09/29/16 73.10 71.92
5,539.21 12/21/16 74.28 73.10
5,539.53 03/30/17 73.96 72.78
5,539.89 06/27/17 73.60 72.42
5,540.09 09/28/17 73.40 72.22
5,539.07 11/30/17 74.42 73.24
5,540.45 03/28/18 73.04 71.86
5,531.79 06/22/18 81.70 80.52
5,531.94 09/24/18 81.55 80.37
5,540.22 12/17/18 73.27 72.09
5,514.10 03/25/19 99.39 98.21
5,529.11 06/24/19 84.38 83.20
Water Levels and Data over Time
White Mesa Mill -Well TW 4-4
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,612.301 5,613.485 1.184 114.5
5,527.15 08/12/19 86.34 85.16
5,528.08 11/18/19 85.41 84.23
5,534.40 02/10/20 79.09 77.91
5,533.16 05/04/20 80.33 79.15
5,539.39 09/21/20 74.10 72.92
5,536.54 12/28/20 76.95 75.77
5,533.98 03/11/21 79.51 78.33
5,528.14 06/24/21 85.35 84.17
5,532.43 08/13/21 81.06 79.88
5,530.32 12/30/21 83.17 81.99
5,539.46 02/10/22 74.03 72.85
5,529.37 06/28/22 84.12 82.94
5,524.97 08/15/22 88.52 87.34
5,530.93 11/17/22 82.56 81.38
Depth Below Measuring Point (ft.)
...... ...... ...... 0 \0 00 -.J 0\ V1
0 0 0 0 0 0 0
05/25/00
-10/22/00
-03/21/01
-08/18/01
-01/15/02
-06/14/02
-11/11/02
04/10/03
09/07/03
-02/04/04
-07/03/04
-11/30/04
-04/29/05
-09/26/05
-02/23/06
-07/23/06 ~ -12/20/06 ~ -05/19/07
10/16/07 ,&;:..
I
-03/14/08 ,&;:..
-08/11/08 ~ -01/08/09
-06/07/09 -~
-11/04/09 "1
-04/03/10 0 ~ 08/31/10 "Cl -01/28/11 ;.
06/27/11 0 -11/24/11 < -04/22/12 ~
-09/19/12 "1
02/16/13 ~ ....
07/16/13 s 12/13/13 ~
05/12/14 --10/09/14 ?
03/08/15 O"" -08/05/15 s -01/02/16 "Cl
-05/31/16 ---10/28/16
-03/27/17
08/24/17
-01/21/18
-06/20/18
-11/17/18
-04/16/19
C 09/13/19
02/10/20
-07/09/20
12/06/20
05/05/21
-10/02/21
03/01/22
07/29/22
12/26/22
05/25/23
10/22/23
03/20/24
Water Levels and Data over Time
White Mesa Mill -Well TW 4-5
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring {blw.MP) (blw.LSD) Well
5,638.75 5,640.70 1.95 121.85
5,579.30 01/02/00 61.40 59.45
5,579.60 01/10/00 61.10 59.15
5,579.35 01/17/00 61.35 59.40
5,579.60 01/24/00 61.10 59.15
5,579.50 02/01/00 61.20 59.25
5,579.50 02/07/00 61.20 59.25
5,579.90 02/14/00 60.80 58.85
5,579.90 02/23/00 60.80 58.85
5,580.20 03/01/00 60.50 58.55
5,580.00 03/08/00 60.70 58.75
5,580.04 03/15/00 60.66 58.71
5,580.70 03/20/00 60.00 58.05
5,580.30 03/29/00 60.40 58.45
5,580.00 04/04/00 60.70 58.75
5,580.20 04/13/00 60.50 58.55
5,580.40 04/21/00 60.30 58.35
5,580.50 04/28/00 60.20 58.25
5,580.50 05/01/00 60.20 · 58.25
5,580.90 05/11/00 59.80 57.85
5,580.50 05/15/00 60.20 58.25
5,580.75 05/25/00 59.95 58.00
5,580.80 06/09/00 59.90 57.95
5,580.92 06/16/00 59.78 57.83
5,580.80 06/26/00 59.90 57.95
5,580.90 07/06/00 59.80 57.85
5,581.05 07/13/00 59.65 57.70
5,580.90 07/18/00 59.80 57.85
5,581.05 07/27/00 59.65 57.70
5,581.06 08/02/00 59.64 57.69
5,581.08 08/09/00 59.62 57.67
5,581.07 08/16/00 59.63 57.68
5,581.25 08/31/00 59.45 57.50
5,581.32 09/08/00 59.38 57.43
5,581.34 09/13/00 59.36 57.41
5,581.41 09/20/00 59.29 57.34
5,581.37 10/05/00 59.33 57.38
5,581.66 11/09/00 59.04 57.09
5,581.63 12/06/00 59.07 57.12
5,581.92 01/03/01 58.78 56.83
5,582.20 02/09/01 58.50 56.55
5,582.54 03/28/01 58.16 56.21
5,582.72 04/30/01 57.98 56.03
5,582.72 05/31/01 57.98 56.03
5,582.81 06/22/01 57.89 55.94
5,582.92 07/10/01 57.78 55.83
5,583.17 08/20/01 57.53 55.58
Water Levels and Data over Time
White Mesa Mill -Well TW 4-5
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5 638.75 5,640.70 1.95 121.85
5,583.28 09/19/01 57.42 55.47
5,583.36 10/02/01 57.34 55.39
5,583.49 11/08/01 57.21 55.26
5,583.84 12/03/01 56.86 54.91
5,583.79 01/03/02 56.91 54.96
5,583.96 02/06/02 56.74 54.79
5,584.39 03/26/02 56.31 54.36
5,584.12 04/09/02 56.58 54.63
5,584.55 05/23/02 56.15 54.20
5,584.42 06/05/02 56.28 54.33
5,583.65 07/08/02 57.05 55.10
5,584.90 08/23/02 55.80 53.85
5,585.02 09/11/02 55.68 53.73
5,585.20 10/23/02 55.50 53.55
5,585.15 11/22/02 55.55 53.60
5,585.42 12/03/02 55.28 53.33
5,585.65 01/09/03 55.05 53.10
5,585.65 02/12/03 55.05 53.10
5,585.92 03/26/03 54.78 52.83
5,586.22 04/02/03 54.48 52.53
5,586.01 05/01/03 54.69 52.74
5,584.81 06/09/03 55.89 53.94
5,584.34 07/07/03 56.36 54.41
5,584.40 08/04/03 56.30 54.35
5,583.88 09/11/03 56.82 54.87
5,583.57 10/02/03 57.13 55.18
5,583.39 11/07/03 57.31 55.36
5,583.97 12/03/03 56.73 54.78
5,585.28 01/15/04 55.42 53.47
5,585.50 02/10/04 55.20 53.25
5,585.87 03/28/04 54.83 52.88
5,586.20 04/12/04 54.50 52.55
5,586.45 05/13/04 54.25 52.30
5,586.50 06/18/04 54.20 52.25
5,587.13 07/28/04 53.57 51.62
5,586.22 08/30/04 54.48 52.53
5,585.69 09/16/04 55.01 53.06
5,585.17 10/11/04 55.53 53.58
5,584.64 11/16/04 56.06 54.11
5,584.77 12/22/04 55.93 53.98
5,584.65 01/18/05 56.05 54.10
5,584.98 02/28/05 55.72 53.77
5,585.15 03/15/05 55.55 53.60
5,586.25 04/26/05 54.45 52.50
5,586.79 05/24/05 53.91 51.96
5,586.52 06/30/05 54.18 52.23
Water Levels and Data over Time
White Mesa Mill -Well TW 4-5
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,638.75 5,640.70 1.95 121.85
5,586.03 07/29/05 54.67 52.72
5,586.05 09/12/05 54.65 52.70
5,585.80 12/07/05 54.90 52.95
5,587.06 03/08/06 53.64 51.69
5,585.90 06/13/06 54.80 52.85
5,585.32 07/18/06 55.38 53.43
5,585.35 11/07/06 55.35 53.40
5585.81 02/27/07 54.89 52.94
5,585.20 05/02/07 55.50 53.55
5,586.66 08/14/07 54.04 52.09
5,586.80 10/10/07 53.90 51.95
5,588.48 03/26/08 52.22 50.27
5,586.51 06/24/08 54.19 52.24
5,586.45 08/26/08 54.25 52.30
5,585.40 10/14/08 55.30 53.35
5,584.80 03/03/09 55.90 53.95
5,584.73 06/24/09 55.97 54.02
5,584.36 09/10/09 56.34 54.39
5,585.02 12/11/09 55.68 53.73
5,585.66 03/11/10 55.04 53.09
5,584.86 05/11/10 55.84 53.89
5,584.55 09/29/10 56.15 54.20
5,584.17 12/21/10 56.53 54.58
5,583.55 02/28/11 57.15 55.20
5,584.72 06/21/11 55.98 54.03
5,584.62 09/20/11 56.08 54.13
5,585.04 11/21/11 55.66 53.71
5,583.89 03/27/12 56.81 54.86
5,583.92 06/28/12 56.78 54.83
5,583.89 09/27/12 56.81 54.86
5,583.89 12/28/12 56.81 54.86
5,582.88 03/28/13 57.82 55.87
5,582.05 06/27/13 58.65 56.70
5,581.35 09/27/13 59.35 57.40
5,580.52 12/20/13 60.18 58.23
5,579.44 03/27/14 61.26 59.31
5,578.11 06/25/14 62.59 60.64
5,577.15 09/25/14 63.55 61.60
5,577.44 12/17/14 63.26 61.31
5,577.37 03/26/15 63.33 61.38
5,577.46 06/22/15 63.24 61.29
5,576.92 09/30/15 63.78 61.83
5,576.33 12/02/15 64.37 62.42
5,576.30 03/30/16 64.40 62.45
5,575.72 06/30/16 64.98 63.03
5,575.12 09/29/16 65.58 63.63
Water Levels and Data over Time
White Mesa Mill -Well TW 4-5
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,638.75 5,640.70 1.95 12] .85
5,574.77 12/21/16 65.93 63.98
5,575.03 03/30/17 65.67 63.72
5,574.55 06/27/17 66.15 64.20
5,574.09 09/28/17 66.61 64.66
5,573.48 11/30/17 67.22 65.27
5,573.05 03/28/18 67.65 65.70
5,572.68 06/22/18 68.02 66.07
5,571.89 09/24/18 68.81 66.86
5,571.86 12/17/18 68.84 66.89
5,571.15 03/25/19 69.55 67.60
5,571.26 06/24/19 69.44 67.49
5,571.12 08/12/19 69.58 67.63
5,570.73 11/18/19 69.97 68.02
5,570.50 02/10/20 70.20 68.25
5,570.15 05/04/20 70.55 68.60
5,569.36 09/22/20 71.34 69.39
5,569.17 12/30/20 71.53 69.58
5,569.24 03/11/21 71.46 69.51
5,568.71 06/24/21 71.99 70.04
5,568.68 08/13/21 72.02 70.07
5,568.99 12/30/21 71.71 69.76
5,568.23 02/10/22 72.47 70.52
5,568.73 06/28/22 71.97 70.02
5,568.04 08/15/22 72.66 70.71
5,567.85 11/17/22 72.85 70.9
--..J VI --..J 0
Depth Below Measuring Point (ft.)
°' VI °' 0 VI VI VI 0
I i i -...:± I l 01/02/00
05/31/00
10/28/00
03/27/01
-08/24/01
01/21/02
.... 06/20/02
11/17/02
-04/16/03
-09/13/03
02/10/04
07/09/04
12/06/04
05/05/05
10/02/05
-03/01/06
07/29/06
-12/26/06
05/25/07
10/22/07
03/20/08
08/17/08
01/14/09
06/13/09
-11/10/09
-04/09/10
09/06/10
02/03/11
07/03/11
-11/30/11
04/28/12
09/25/12
-02/22/13
07/22/13
-12/19/13
-05/18/14
-10/15/14
03/14/15
08/11/15
-01/08/16
-06/06/16
-11/03/16
-04/02/17
08/30/17
-01/27/18
-06/26/18
11/23/18
04/22/19
-09/19/19
~ 02/16/20
07/15/20
-12/12/20
05/11/21
• 10/08/21
• 03/07/22
-08/04/22
-01/01/23
• 05/31/23
10/28/23
L-------'-------<----------'---------'--------'-03/26/24
~ ~ ,I;:;,..
I Ul
~ ;-
'"1
~ ~ ~ e,
0 < ~ '"1
~ ,... s ~ --?
-r::r ! '-'
Water Levels and Data over Time
White Mesa Mill -Well TW 4-6
Total or
Measuring Measured Total Total
Water Land Point Depth to Depth to Depth Of
Elevation Surface Elevation Length Of Date Of Water Water Well
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD)
5,607.33 5,608.78 l.450 99.60
5,522.28 05/25/00 86.50 85.05
5,521.51 06/09/00 87.27 85.82
5,522.35 06/16/00 86.43 84.98
5,522.14 06/26/00 86.64 85.19
5,522.25 07/06/00 86.53 85.08
5,522.13 07/13/00 86.65 85.20
5,522.17 07/18/00 86.61 85.16
5,522.26 07/25/00 86.52 85.07
5,522.31 08/02/00 86.47 85.02
5,522.33 08/09/00 86.45 85.00
5,522.35 08/15/00 86.43 84.98
5,522.40 08/31/00 86.38 84.93
5,522.40 09/08/00 86.38 84.93
5,522.45 09/13/00 86.33 84.88
5,522.53 09/20/00 86.25 84.80
5,522.39 10/05/00 86.39 84.94
5,522.42 11/09/00 86.36 84.91
5,522.29 12/06/00 86.49 85.04
5,522.63 01/03/01 86.15 84.70
5,522.72 02/09/01 86.06 84.61
5,522.90 03/26/01 85.88 84.43
5,522.70 04/30/01 86.08 84.63
5,522.89 05/31/01 85.89 84.44
5,522.88 06/20/01 85.90 84.45
5,522.96 07/10/01 85.82 84.37
5,523.10 08/20/01 85.68 84.23
5,523.23 09/19/01 85.55 84.10
5,523.21 10/02/01 85.57 84.12
5,523.25 11/08/01 85.53 84.08
5,523.46 12/03/01 85.32 83.87
5,523.36 01/03/02 85.42 83.97
5,523.50 02/06/02 85.28 83.83
5,523.94 03/26/02 84.84 83.39
5,523.75 04/09/02 85.03 83.58
5,524.23 05/23/02 84.55 83.10
5,523.98 06/05/02 84.80 83.35
5,524.31 07/08/02 84.47 83.02
5,524.36 08/23/02 84.42 82.97
5,524.49 09/11/02 84.29 82.84
5,524.71 10/23/02 84.07 82.62
5,524.60 11/22/02 84.18 82.73
5,524.94 12/03/02 83.84 82.39
5,525.10 01/09/03 83.68 82.23
5,525.15 02/12/03 83.63 82.18
5,525.35 03/26/03 83.43 81.98
5,525.68 04/02/03 83.10 81.65
Water Levels and Data over Time
White Mesa Mill -Well TW4-6
Total or
Measuring Measured Total Total
Water Land Point Depth to Depth to Depth Of
Elevation Surface Elevation Length Of Date Of Water Water Well
(z) (LSD) (MP) Riser (L) Monitoring (bhv.MP) (blw.LSD) (blw.LSD)
5,607.33 5,608.78 1.450 99.60
5,525.74 05/01/03 83.04 81.59
5,525.98 06/09/03 82.80 81.35
5,526.04 07/07/03 82.74 81.29
5,526.07 08/04/03 82.71 81.26
5,526.42 09/11/03 82.36 80.91
5,526.30 10/02/03 82.48 81.03
5,526.41 11/07/03 82.37 80.92
5,526.46 12/03/03 82.32 80.87
5,526.83 01/15/04 81.95 80.50
5,526.81 02/10/04 81.97 80.52
5,527.14 03/28/04 81.64 80.19
5,527.39 04/12/04 81.39 79.94
5,527.64 05/13/04 81.14 79.69
5,527.70 06/18/04 81.08 79.63
5,528.16 07/28/04 80.62 79.17
5,528.30 08/30/04 80.48 79.03
5,528.52 09/16/04 80.26 78.81
5,528.71 10/11/04 80.07 78.62
5,528.74 11/16/04 80.04 78.59
5,529.20 12/22/04 79.58 78.13
5,528.92 01/18/05 79.86 78.41
5,529.51 02/28/05 79.27 77.82
5,529.74 03/15/05 79.04 77.59
5,529.96 04/26/05 78.82 77.37
5,530.15 05/24/05 78.63 77.18
5,530.35 06/30/05 78.43 76.98
5,530.47 07/29/05 78.31 76.86
5,530.95 09/12/05 77.83 76.38
5,531.50 12/07/05 77.28 75.83
5,532.43 03/08/06 76.35 74.90
5,533.49 06/13/06 75.29 73.84
5,532.58 07/18/06 76.20 74.75
5,532.88 11/07/06 75.90 74.45
5534.09 02/27/07 74.69 73.24
5,534.04 05/02/07 74.74 73.29
5,534.43 08/14/07 74.35 72.90
5,554.54 10/10/07 54.24 52.79
5,535.40 03/26/08 73.38 71.93
5,535.55 06/24/08 73.23 71.78
5,535.90 08/26/08 72.88 71.43
5,535.87 10/14/08 72.91 71.46
5,536.42 03/10/09 72.36 70.91
5,536.71 06/24/09 72.07 70.62
5,536.83 09/10/09 71.95 70.50
5,537.35 12/11/09 71.43 69.98
5,537.93 03/11/10 70.85 69.40
Water Levels and Data over Time
White Mesa Mill -Well TW 4-6
Total or
Measuring Measured Total Total
Water Land Point Depth to Depth to Depth Of
Elevation Surface Elevation Length Of Date Of Water Water Well
(z) (LSD) (MP) Riser (L) Monitorin~ (blw.MP) (blw.LSD) (blw.LSD)
5,607.33 5,608.78 1.450 99.60
5,538.14 05/11/10 70.64 69.19
5,538.03 09/29/10 70.75 69.30
5,538.04 12/21/10 70.74 69.29
5,537.98 02/28/11 70.80 69.35
5,538.46 06/21/11 70.32 68.87
5,538.37 09/20/11 70.41 68.96
5,538.87 12/21/11 69.91 68.46
5,538.73 03/27/12 70.05 68.60
5,538.80 06/28/12 69.98 68.53
5,539.04 09/27/12 69.74 68.29
5,538.74 12/28/12 70.04 68.59
5,539.53 03/28/13 69.25 67.80
5,539.46 06/27/13 69.32 67.87
5,539.62 09/27/13 69.16 67.71
5,539.85 12/20/13 68.93 67.48
5,539.65 03/27/14 69.13 67.68
5,538.85 06/25/14 69.93 68.48
5,538.69 09/25/14 70.09 68.64
5,538.71 12/17/14 70.07 68.62
5,538.03 03/26/15 70.75 69.30
5,537.78 06/22/15 71.00 69.55
5,537.40 09/30/15 71.38 69.93
5,537.44 12/02/15 71.34 69.89
5,536.76 03/30/16 72.02 70.57
5,536.08 06/30/16 72.70 71.25
5,535.54 09/29/16 73.24 71.79
5,535.38 12/21/16 73.40 71.95
5,535.48 03/30/17 73.30 71.85
5,535.13 06/27/17 73.65 72.20
5,534.78 09/28/17 74.00 72.55
5,534.54 11/30/17 74.24 72.79
5,534.38 03/28/18 74.40 72.95
5,533.92 06/22/18 74.86 73.41
5,533.49 09/25/18 75.29 73.84
5,533.17 12/17/18 75.61 74.16
5,532.63 03/25/19 76.15 74.70
5,532.56 06/24/19 76.22 74.77
5,532.28 08/12/19 76.50 75.05
5,531.69 11/18/19 77.09 75.64
5,531.34 02/10/20 77.44 75.99
5,530.76 05/04/20 78.02 76.57
5,530.36 09/22/20 78.42 76.97
5,530.29 12/30/20 78.49 77.04
5,530.20 03/11/21 78.58 77.13
5,529.69 06/24/21 79.09 77.64
5,529.67 08/13/21 79.11 77.66
Water Levels and Data over Time
White Mesa Mill -Well TW 4-6
Total or
Measuring Measured Total Total
Water Land Point Depth to Depth to Depth Of
Elevation Surface Elevation Length Of Date Of Water Water Well
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD)
5,607.33 5,608.78 1.450 99.60
5,529.78 12/30/21 79.00 77.55
5,529.23 02/10/22 79.55 78.10
5,529.65 06/28/22 79.13 77.68
5,528.84 08/15/22 79.94 78.49
5,528.58 11/17/22 80.20 78.75
Depth Below Measuring Point (ft.)
'° 00 00 -:i -:i 0\ 0\ VI VI
0 VI 0 VI 0 VI 0 VI 0
05/25/00
-10/22/00
-03/21/01
08/18/01
01/15/02
06/14/02
-11/11/02
-04/10/03
-09/07/03
02/04/04
07/03/04
11/30/04
-04/29/05
~ 09/26/05
02/23/06
07/23/06 ~ -12/20/06
05/19/07 ~
10/16/07 ,&;:..
I 03/14/08 O'I
08/11/08 ~ 01/08/09
06/07/09 ""'" ~
11/04/09 ""1
04/03/10 t:::,
08/31/10 ~ "0 01/28/11 ""'" 06/27/11 =-
11/24/11 0
04/22/12 ~ ~
09/19/12 ""1
02/16/13 ~ .... 07/16/13 e 12/13/13 ~
05/12/14 --10/09/14 ?
03/08/15 C"'
08/05/15 -e 01/02/16 "0 05/31/16 _,
10/28/16
-03/27/17
08/24/17
01/21/18
-06/20/18
-11/17/18
04/16/19
-09/13/19
-02/10/20
-07/09/20
-12/06/20
05/05/21
-10/02/21
03/01/22
07/29/22
12/26/22
-05/25/23
10/22/23
-03/20/24
Water Levels and Data over Time
White Mesa Mill -Well TW4-7
Measuring Total or Total Water Land Point Length Of Date Of Measured Depth to Total Depth
Elevation Surface Elevation Riser (L) Monitoring Depth to Water Of Well
(WL) (LSD) (MP) Water (blw.LSD) (blw.LSD)
,blw.MPl
5,619.87 5,621.07 1.20 121.0
5,552.37 11/29/99 68.70 67.50
5,553.57 01/02/00 67.50 66.30
5,553.87 01/10/00 67.20 66.00
5,553.72 01/17/00 67.35 66.15
5,553.97 01/24/00 67.10 65.90
5,553.87 02/01/00 67.20 66.00
5,553.87 02/07/00 67.20 66.00
5,554.17 02/14/00 66.90 65.70
5,554.27 02/23/00 66.80 65.60
5,554.37 03/01/00 66.70 65.50
5,554.37 03/08/00 66.70 65.50
5,554.27 03/15/00 66.80 65.60
5,554.77 03/20/00 66.30 65.10
5,554.57 03/29/00 66.50 65.30
5,554.27 04/04/00 66.80 65.60
5,554.57 04/13/00 66.50 65.30
5,554.77 04/21/00 66.30 65.10
5,554.87 04/28/00 66.20 65.00
5,554.87 05/01/00 66.20 65.00
5,555.27 05/11/00 65.80 64.60
5,554.97 05/15/00 66.10 64.90
5,555.27 05/25/00 65.80 64.60
5,555.33 06/09/00 65.74 64.54
5,555.45 06/16/00 65.62 64.42
5,555.22 06/26/00 65.85 64.65
5,555.45 07/06/00 65.62 64.42
5,555.40 07/13/00 65.67 64.47
5,555.45 07/18/00 65.62 64.42
5,555.59 07/27/00 65.48 64.28
5,555.65 08/02/00 65.42 64.22
5,555.70 08/09/00 65.37 64.17
5,555.74 08/16/00 65.33 64.13
5,555.96 08/31/00 65.11 63.91
5,555.87 09/08/00 65.20 64.00
5,555.95 09/13/00 65.12 63.92
5,556.05 09/20/00 65.02 63.82
5,556.06 10/05/00 65.01 63.81
5,556.17 10/12/00 64.90 63.70
5,556.20 10/19/00 64.87 63.67
5,556.22 10/23/00 64.85 63.65
5,556.36 11/09/00 64.71 63.51
5,556.42 11/14/00 64.65 63.45
5,556.45 11/30/00 64.62 63.42
5,556.15 12/06/00 64.92 63.72
Water Levels and Data over Time
White Mesa Mill -Well TW4-7
Measuring Total or Total Water Land Measured Total Depth
Elevation Surface Point Length Of Date Of Depth to Depth to Of Well
(WL) (LSD) Elevation Riser (L) Monitoring Water Water (blw.LSD) (MP) (blw.MPl (blw.LSD)
5,619.87 5,621.07 1.20 121.0
5,556.89 01/14/01 64.18 62.98
5,557.07 02/09/01 64.00 62.80
5,557.62 03/29/01 63.45 62.25
5,557.51 04/30/01 63.56 62.36
5,557.77 05/31/01 63.30 62.10
5,557.84 06/21/01 63.23 62.03
5,557.98 07/10/01 63.09 61.89
5,558.33 08/20/01 62.74 61.54
5,558.57 09/19/01 62.50 61.30
5,558.53 10/02/01 62.54 61.34
5,558.62 11/08/01 62.45 61.25
5,559.03 12/03/01 62.04 60.84
5,559.08 01/03/02 61.99 60.79
5,559.32 02/06/02 61.75 60.55
5,559.63 03/26/02 61.44 60.24
5,559.55 04/09/02 61.52 60.32
5,560.06 05/23/02 61.01 59.81
5,559.91 06/05/02 61.16 59.96
5,560.09 07/08/02 60.98 59.78
5,560.01 08/23/02 61.06 59.86
5,560.23 09/11/02 60.84 59.64
5,560.43 10/23/02 60.64 59.44
5,560.39 11/22/02 60.68 59.48
5,560.61 12/03/02 60.46 59.26
5,560.89 01/09/03 60.18 58.98
5,560.94 02/12/03 60.13 58.93
5,561.28 03/26/03 59.79 58.59
5,561.35 04/02/03 59.72 58.52
5,546.20 05/01/03 74.87 73.67
5,539.47 06/09/03 81.60 80.40
5,541.87 07/07/03 79.20 78.00
5,542.12 08/04/03 78.95 77.75
5,541.91 09/11/03 79.16 77.96
5,544.62 10/02/03 76.45 75.25
5,542.67 11/07/03 78.40 77.20
5,549.96 12/03/03 71.11 69.91
5,557.17 01/15/04 63.90 62.70
5,558.65 02/10/04 62.42 61.22
5,559.90 03/28/04 61.17 59.97
5,560.36 04/12/04 60.71 59.51
5,560.87 05/13/04 60.20 59.00
5,560.95 06/18/04 60.12 58.92
5,561.64 07/28/04 59.43 58.23
5,543.00 08/30/04 78.07 76.87
Water Levels and Data over Time
White Mesa Mill -Well TW4-7
Measuring Total or Total Water Land Point Length Of Date Of Measured Depth to Total Depth
Elevation Surface Elev.ation Riser (L) Monitoring Depth to Water Of Well
(WL) (LSD) (MP) Water (b lw.LSD) (bhv.LSD)
(blw.MPl
5,619.87 5,621.07 1.20 121.0
5,541.91 09/16/04 79.16 77.96
5,540.08 10/11/04 80.99 79.79
5,546.92 11/16/04 74.15 72.95
5,546.97 12/22/04 74.10 72.90
5,546.51 01/18/05 74.56 73.36
5,546.66 02/28/05 74.41 73.21
5,546.81 03/15/05 74.26 73.06
5,548.19 04/26/05 72.88 71.68
5,547.11 05/24/05 73.96 72.76
5,546.98 06/30/05 74.09 72.89
5,546.92 07/29/05 74.15 72.95
5,547.26 09/12/05 73.81 72.61
5,547.26 12/07/05 73.81 72.61
5,548.86 03/08/06 72.21 71.01
5,548.62 06/13/06 72.45 71.25
5,550.04 07/18/06 71.03 69.83
5,548.32 11/07/06 72.75 71.55
5,550.44 02/27/07 70.63 69.43
5,549.69 05/02/07 71.38 70.18
5,549.97 08/14/07 71.10 69.90
5,550.30 10/10/07 70.77 69.57
5,551.92 03/26/08 69.15 67.95
5,552.94 06/24/08 68.13 66.93
5,552.34 08/26/08 68.73 67.53
5,552.61 10/14/08 68.46 67.26
5,552.81 03/10/09 68.26 67.06
5,553.11 06/24/09 67.96 66.76
5,552.55 09/10/09 68.52 67.32
5,553.06 12/11/09 68.01 66.81
5,554.64 03/11/10 66.43 65.23
5,554.20 05/11/10 66.87 65.67
5,553.45 09/29/10 67.62 66.42
5,553.40 12/21/10 67.67 66.47
5,553.93 02/28/11 67.14 65.94
5,553.67 06/21/11 67.4 66.20
5,553.46 09/20/11 67.61 66.41
5,553.78 12/21/11 67.29 66.09
5,553.17 03/27/12 67.90 66.70
5,553.21 06/28/12 67.86 66.66
5,552.90 09/27/12 68.17 66.97
5,553.15 12/28/12 67.92 66.72
5,556.23 03/28/13 64.84 63.64
5,556.04 06/27/13 65.03 63.83
5,556.09 09/27/13 64.98 63.78
Water Levels and Data over Time
White Mesa Mill -Well TW4-7
Measul"ing Total or Total Water Land Point Length Of Date Of Measured Depth to Total Depth
Elevation Surface Elevation Riser (L) Monitoring Depth to Water Of Well
(WL) (LSD) Water (blw.LSD) (MP) !blw.MPl (blw.LSD)
5,619.87 5,621.07 1.20 121.0
5,555.80 12/20/13 65.27 64.07
5,555.40 03/27/14 65.67 64.47
5,554.20 06/25/14 66.87 65.67
5,552.96 09/25/14 68.11 66.91
5,552.62 12/17/14 68.45 67.25
5,548.57 03/26/15 72.50 71.30
5,555.88 06/22/15 65.19 63.99
5,546.22 09/30/15 74.85 73.65
5,539.47 12/02/15 81.60 80.40
5,545.08 03/30/16 75.99 74.79
5,544.62 06/30/16 76.45 75.25
5,544.61 09/29/16 76.46 75.26
5,544.09 12/21/16 76.98 75.78
5,546.07 03/30/17 75.00 73.80
5,549.36 06/27/17 71.71 70.51
5,541.91 09/28/17 79.16 77.96
5,540.51 11/30/17 80.56 79.36
5,540.71 03/28/18 80.36 79.16
5,540.12 06/22/18 80.95 79.75
5,540.17 09/25/18 80.90 79.70
5,538.26 12/17/18 82.81 81.61
5,538.81 03/25/19 82.26 81.06
5,539.11 06/24/19 81.96 80.76
5,539.75 08/12/19 81.32 80.12
5,539.13 11/18/19 81.94 80.74
5,538.03 02/10/20 83.04 81.84
5,538.29 05/04/20 82.78 81.58
5,540.28 09/22/20 80.79 79.59
5,539.17 12/30/20 81.90 80.70
5,539.03 03/11/21 82.04 80.84
5,538.82 06/24/21 82.25 81.05
5,539.00 08/13/21 82.07 80.87
5,539.08 12/30/21 81.99 80.79
5,537.94 02/10/22 83.13 81.93
5,538.86 06/28/22 82.21 81.01
5,538.64 08/15/22 82.43 81.23
5,538.68 11/17/22 82.39 81.19
00 VI 00 0
Depth Below Measuring Point (ft.)
-..J VI -..J 0 °' VI °' 0 VI VI VI 0
1-----+----+-----------'r----.-::---+-----+----------1---;-ll/29/99
04/27/00
09/24/00
02/21/01
07/21/01
12/18/01
05/17/02
10/14/02
03/13/03
08/10/03
01/07/04
06/05/04
11/02/04
04/01/05
08/29/05
01/26/06
06/25/06
11/22/06
04/21/07
09/18/07
02/15/08
07/14/08
12/11/08
05/10/09
10/07/09
03/06/10
08/03/10
12/31/10
05/30/11
10/27/11
03/25/12
08/22/12
01/19/13
06/18/13
11/15/13
04/14/14
09/11/14
02/08/15
07/08/15
12/05/15
05/03/16
09/30/16
02/27/17
07/27/17
12/24/17
05/23/18
10/20/18
03/19/19
08/16/19
01/13/20
06/11/20
11/08/20
04/07/21
09/04/21
02/01/22
07/01/22
11/28/22
04/27/23
09/24/23
L-----'-------'-----------'---.....__-----'---------'----..... 02/21/24
lo-3 ~ I ....;J
~ ;-
""1
~ ~ ~ ~
0 ~ ""1
lo-3 ... ~ ,_
?
'a' a ~ '-'
Water Levels and Data over Time
White Mesa Mill -Well TW4-8
Total or
Measuring Measured
Water Land Point Depth to Total Depth Total
Elevation Surface Elevation Length Of Date Of Water to Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,616.80 5,621.40 4.60 126.2
5,546.40 11/29/99 75.00 70.40
5,546.20 01/02/00 75.20 70.60
5,546.50 01/10/00 74.90 70.30
5,546.30 01/17/00 75.10 70.50
5,546.60 01/24/00 74.80 70.20
5,546.50 02/01/00 74.90 70.30
5,546.50 02/07/00 74.90 70.30
5,546.90 02/14/00 74.50 69.90
5,546.95 02/23/00 74.45 69.85
5,547.05 03/01/00 74.35 69.75
5,547.05 03/08/00 74.35 69.75
5,547.10 03/15/00 74.30 69.70
5,547.50 03/20/00 73.90 69.30
5,547.40 03/29/00 74.00 69.40
5,547.20 04/04/00 74.20 69.60
5,547.40 04/13/00 74.00 69.40
5,547.60 04/21/00 73.80 69.20
5,547.70 04/28/00 73.70 69.10
5,547.70 05/01/00 73.70 69.10
5,548.00 05/11/00 73.40 68.80
5,547.70 05/15/00 73.70 69.10
5,547.90 05/25/00 73.50 68.90
5,547.90 06/09/00 73.50 68.90
5,548.00 06/16/00 73.40 68.80
5,547.87 06/26/00 73.53 68.93
5,547.95 07/06/00 73.45 68.85
5,547.96 07/13/00 73.44 68.84
5,547.95 07/18/00 73.45 68.85
5,548.11 07/27/00 73.29 68.69
5,548.15 08/02/00 73.25 68.65
5,548.17 08/09/00 73.23 68.63
5,548.16 08/15/00 73.24 68.64
5,548.40 08/31/00 73.00 68.40
5,548.50 09/08/00 72.90 68.30
5,548.62 09/13/00 72.78 68.18
5,548.75 09/20/00 72.65 68.05
5,548.76 10/05/00 72.64 68.04
5,549.00 11/09/00 72.40 67.80
5,548.85 12/06/00 72.55 67.95
5,549.47 01/03/01 71.93 67.33
5,549.89 02/09/01 71.51 66.91
5,550.37 03/27/01 71.03 66.43
5,550.50 04/30/01 70.90 66.30
Water Levels and Data over Time
White Mesa Mill -Well TW 4-8
Total or
Measuring Measured
Water Land Point Depth to Total Depth Total
Elevation Surface Elevation Length Of Date Of Water to Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,616.80 5,621.40 4.60 126.2
5,550.68 05/31/01 70.72 66.12
5,550.68 06/20/01 70.72 66.12
5,551.02 07/10/01 70.38 65.78
5,551.32 08/20/01 70.08 65.48
5,551.49 09/19/01 69.91 65.31
5,551.64 10/02/01 69.76 65.16
5,551.81 11/08/01 69.59 64.99
5,552.22 12/03/01 69.18 64.58
5,552.16 01/03/02 69.24 64.64
5,552.38 02/06/02 69.02 64.42
5,552.85 03/26/02 68.55 63.95
5,552.83 04/09/02 68.57 63.97
5,553.20 05/23/02 68.20 63.60
5,553.16 06/05/02 68.24 63.64
5,553.32 07/08/02 68.08 63.48
5,553.49 08/23/02 67.91 63.31
5,553.69 09/11/02 67.71 63.11
5,554.09 10/23/02 67.31 62.71
5,554.02 11/22/02 67.38 62.78
5,554.23 12/03/02 67.17 62.57
5,554.43 01/09/03 66.97 62.37
5,554.42 02/12/03 66.98 62.38
5,554.71 03/26/03 66.69 62.09
5,554.83 04/02/03 66.57 61.97
5,552.21 05/01/03 69.19 64.59
5,547.93 06/09/03 73.47 68.87
5,546.97 07/07/03 74.43 69.83
5,546.58 08/04/03 74.82 70.22
5,546.24 09/11/03 75.16 70.56
5,546.38 10/02/03 75.02 70.42
5,546.40 11/07/03 75.00 70.40
5,546.59 12/03/03 74.81 70.21
5,551.29 01/15/04 70.11 65.51
5,552.69 02/10/04 68.71 64.11
5,554.06 03/28/04 67.34 62.74
5,554.52 04/12/04 66.88 62.28
5,555.06 05/13/04 66.34 61.74
5,555.11 06/18/04 66.29 61.69
5,555.88 07/28/04 65.52 60.92
5,552.97 08/30/04 68.43 63.83
5,550.65 09/16/04 70.75 66.15
5,548.40 10/11/04 73.00 68.40
5,548.28 11/16/04 73.12 68.52
Water Levels and Data over Time
White Mesa Mill -Well TW4-8
Total or
Measuring Measured
Water Land Point Depth to Total Depth Total
Elevation Surface Elevation Length Of Date Of Water to Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,616.80 5,621.40 4.60 126.2
5,548.80 12/22/04 72.60 68.00
5,548.43 01/18/05 72.97 68.37
5,548.61 02/28/05 72.79 68.19
5,548.64 03/15/05 72.76 68.16
5,548.65 04/26/05 72.75 68.15
5,548.85 05/24/05 72.55 67.95
5,548.73 06/30/05 72.67 68.07
5,548.62 07/29/05 72.78 68.18
5,548.80 09/12/05 72.60 68.00
5,548.71 12/07/05 72.69 68.09
5,549.72 03/08/06 71.68 67.08
5,549.70 06/13/06 71.70 67.10
5,549.70 07/18/06 71.70 67.10
5,549.65 11/07/06 71.75 67.15
5,551.11 02/27/07 70.29 65.69
5,550.20 05/02/07 71.20 66.60
5,550.59 08/14/07 70.81 66.21
5,550.76 10/10/07 70.64 66.04
5,551.95 03/26/08 69.45 64.85
5,552.36 06/24/08 69.04 64.44
5,552.50 08/26/08 68.90 64.30
5,552.56 10/14/08 68.84 64.24
5,552.91 03/03/09 68.49 63.89
5,553.27 06/24/09 68.13 63.53
5,553.12 09/10/09 68.28 63.68
5,553.63 12/11/09 67.77 63.17
5,554.65 03/11/10 66.75 62.15
5,554.57 05/11/10 66.83 62.23
5,554.34 09/29/10 67.06 62.46
5,554.09 12/21/10 67.31 62.71
5,554.50 02/28/11 66.9 62.30
5,554.79 06/21/11 66.61 62.01
5,554.63 09/20/11 66.77 62.17
5,555.01 12/21/11 66.39 61.79
5,554.85 03/27/12 66.55 61.95
5,554.90 06/28/12 66.5 61.90
5,554.85 09/27/12 66.55 61.95
5,554.86 12/28/12 66.54 61.94
5,556.48 03/28/13 64.92 60.32
5,556.35 06/27/13 65.05 60.45
5,556.60 09/27/13 64.80 60.20
5,556.56 12/20/13 64.84 60.24
5,556.38 03/27/14 65.02 60.42
Water Levels and Data over Time
White Mesa Mill -Well TW4-8
Total or
Measuring Measured
Water Land Point Depth to Total Depth Total
Elevation Surface Elevation Length Of Date Of Water to Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,616.80 5,621.40 4.60 126.2
5,555.56 06/25/14 65.84 61.24
5,554.82 09/25/14 66.58 61.98
5,554.95 12/17/14 66.45 61.85
5,546.89 03/26/15 74.51 69.91
5,547.80 06/22/15 73.60 69.00
5,544.84 09/30/15 76.56 71.96
5,540.22 12/02/15 81.18 76.58
5,542.00 03/30/16 79.40 74.80
5,542.10 06/30/16 79.30 74 .70
5,541.70 09/29/16 79.70 75.10
5,539.90 12/21/16 81.50 76.90
5,541.70 03/30/17 79.70 75.10
5,~42.19 06/27/17 79.21 74.61
5,540.58 09/28/17 80.82 76.22
5,538.52 11/30/17 82.88 78.28
5,537.95 03/28/18 83.45 78.85
5,537.73 06/22/18 83.67 79.07
5,537.38 09/25/18 84.02 79.42
5,536.86 12/17/18 84.54 79.94
5,536.30 03/25/19 85.10 80.50
5,536.67 06/24/19 84.73 80.13
5,536.82 08/12/19 84.58 79.98
5,536.37 11/18/19 85.03 80.43
5,535.53 02/10/20 85.87 81.27
5,535.25 05/04/20 86.15 81.55
5,535.49 09/22/20 85.91 81.31
5,534.69 12/30/20 86.71 82.11
5,534.92 03/11/21 86.48 81.88
5,534.82 06/24/21 86.58 81.98
5,536.12 08/13/21 85.28 80.68
5,534.94 12/30/21 86.46 81.86
5,535.76 02/10/22 85.64 81.04
5,534.80 06/28/22 86.60 82.00
5,535.98 08/15/22 85.42 80.82
5,535.89 11/17/22 85.51 80.91
.....
0 0 \0 0 00 0
Depth Below Measuring Point (ft.)
-..l 0 °' 0 UI 0
.j:::..
0
v.l
0 ~ .....
0 0
11/29/99
04/27/00
09/24/00
02/21/01
-07/21/01
12/18/01
05/17/02
10/14/02
03/13/03
08/10/03
01/07/04
06/05/04
11/02/04
04/01/05
08/29/05
01/26/06
06/25/06 ~
11/22/06 ~ 04/21/07 """ 09/18/07 I 00 02/15/08 ~ 07/14/08
12/11/08 """' 05/10/09 ('I)
"1 10/07/09 0 03/06/10 ('I)
08/03/10 ~
12/31/10 ~
05/30/11 0 10/27/11 < 03/25/12 ('I)
"1 08/22/12 ~ 01/19/13 ...
06/18/13 a
11/15/13 ('I) ---04/14/14 ? 09/11/14
02/08/15 -r::r -07/08/15 a 12/05/15 ~
05/03/16 '-"
09/30/16
02/27/17
07/27/17
12/24/17
05/23/18
10/20/18
03/19/19
08/16/19
01/13/20
06/11/20
11/08/20
04/07/21
09/04/21
02/01/22
07/01/22
11/28/22
04/27/23
09/24/23
02/21/24
Water Levels and Data over Time
White Mesa Mill -Well TW 4-9
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,636.11 5,637.59 1.48 120.1
5,577.09 12/20/99 60.50 59.02
5,577.09 01/02/00 60.50 59.02
5,577.29 01/10/00 60.30 58.82
5,577.09 01/17/00 60.50 59.02
5,577.39 01/24/00 60.20 58.72
5,577.29 02/01/00 60.30 58.82
5,577.19 02/07/00 60.40 58.92
5,577.69 02/14/00 59.90 58.42
5,577.69 02/23/00 59.90 58.42
5,577.79 03/01/00 59.80 58.32
5,577.79 03/08/00 59.80 58.32
5,577.89 03/15/00 59.70 58.22
5,568.49 03/20/00 69.10 67.62
5,578.14 03/29/00 59.45 57.97
5,577.84 04/04/00 59.75 58.27
5,578.04 04/13/00 59.55 58.07
5,578.24 04/21/00 59.35 57.87
5,578.39 04/28/00 59.20 57.72
5,578.39 05/01/00 59.20 57.72
5,578.79 05/11100 58.80 57.32
5,578.39 05/15/00 59.20 57.72
5,578.79 05/25/00 58.80 57.32
5,578.81 06/09/00 58.78 57.30
5,578.89 06/16/00 58.70 57.22
5,578.74 06/26/00 58.85 57.37
5,578.86 07/06/00 58.73 57.25
5,578.87 07/13/00 58.72 57.24
5,578.84 07/18/00 58.75 57.27
5,579.03 07/27/00 58.56 57.08
5,579.03 08/02/00 58.56 57.08
5,579.05 08/09/00 58.54 57.06
5,579.04 08/15/00 58.55 57.07
5,579.25 08/31/00 58.34 56.86
5,579.35 09/08/00 58.24 56.76
5,579.40 09/13/00 58.19 56.71
5,579.46 09/20/00 58.13 56.65
5,579.44 10/05/00 58.15 56.67
5,579.79 11/09/00 57.80 56.32
5,579.73 12/06/00 57.86 56.38
5,580.01 01/03/01 57.58 56.10
5,580.30 02/09/01 57.29 55.81
5,580.66 03/27/01 56.93 55.45
5,580.75 04/30/01 56.84 55.36
Water Levels and Data over Time
White Mesa Mill -Well TW 4-9
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,636.11 5,637.59 1.48 120.1
5,581.04 05/31/01 56.55 55.07
5,581.12 06/21/01 56.47 54.99
5,581.15 07/10/01 56.44 54.96
5,581.51 08/20/01 56.08 54.60
5,581.70 09119/01 55.89 54.41
5,581.61 10/02/01 55.98 54.50
5,581.83 11/08/01 55.76 54.28
5,582.17 12/03/01 55.42 53.94
5,582.21 01/03/02 55.38 53.90
5,582.57 02/06/02 55.02 53.54
5,583.12 03/26/02 54.47 52.99
5,582.77 04/09/02 54.82 53.34
5,583.21 05/23/02 54.38 52.90
5,582.94 06/05/02 54.65 53.17
5,582.71 07/08/02 54.88 53.40
5,583.67 08/23/02 53.92 52.44
5,583.82 09/11/02 53.77 52.29
5,584.01 10/23/02 53.58 52.10
5,583.88 11/22/02 53.71 52.23
5,583.81 12/03/02 53.78 52.30
5,584.28 01/09/03 53.31 51.83
5,584.41 02/12/03 53.18 51.70
5,584.68 03/26/03 52.91 51.43
5,584.49 04/02/03 53.10 51.62
5,584.51 05/01/03 53.08 51.60
5,583.59 06/09/03 54.00 52.52
5,582.96 07/07/03 54.63 53.15
5,582.98 08/04/03 54.61 53.13
5,582.57 09/11/03 55.02 53.54
5,582.25 10/02/03 55.34 53.86
5,582.09 11/07/03 55.50 54.02
5,582.48 12/03/03 55.11 53.63
5,583.69 01/15/04 53.90 52.42
5,583.89 02/10/04 53.70 52.22
5,584.30 03/28/04 53.29 51.81
5,584.59 04/12/04 53.00 51.52
5,584.87 05/13/04 52.72 51.24
5,584.96 06/18/04 52.63 51.15
5,585.50 07/28/04 52.09 50.61
5,584.81 08/30/04 52.78 51.30
5,584.40 09/16/04 53.19 51.71
5,583.91 10/11/04 53.68 52.20
5,583.39 11/16/04 54.20 52.72
Water Levels and Data over Time
White Mesa Mill -Well TW 4-9
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,636.11 5,637.59 1.48 120.1
5,583.54 12/22/04 54.05 52.57
5,583.34 01/18/05 54.25 52.77
5,583.66 02/28/05 53.93 52.45
5,583.87 03/15/05 53.72 52.24
5,584.74 04/26/05 52.85 51.37
5,585.26 05/24/05 52.33 50.85
5,585.06 06/30/05 52.53 51.05
5,584.67 07/29/05 52.92 51.44
5,584.75 09/12/05 52.84 51.36
5,584.51 12/07/05 53.08 51.60
5,585.74 03/08/06 51.85 50.37
5,584.74 06/13/06 52.85 51.37
5,584.26 07/18/06 53.33 51.85
5,584.21 11/07/06 53.38 51.90
5,584.67 02/27/07 52.92 51.44
5,584.06 05/02/07 53.53 52.05
5,585.33 08/14/07 52.26 50.78
5,585.42 10/10/07 52.17 50.69
5,587.01 03/26/08 50.58 49.10
5,585.44 06/24/08 52.15 50.67
5,585.23 08/26/08 52.36 50.88
5,584.42 10/14/08 53.17 51.69
5,583.59 03/03/09 54.00 52.52
5,583.35 06/24/09 54.24 52.76
5,582.91 09/10/09 54.68 53.20
5,583.43 12/11/09 54.16 52.68
5,584.00 03/11/10 53.59 52.11
5,583.27 05111110 54.32 52.84
5,582.92 09/29/10 54.67 53.19
5,583.08 12/21/10 54.51 53.03
5,582.63 02/28/11 54.96 53.48
5,583.62 06/21/11 53.97 52.49
5,583.52 09/20/11 54.07 52.59
5,583.91 12/21/11 53.68 52.20
5,582.84 03/27/12 54.75 53.27
5,582.84 06/28/12 54.75 53.27
5,582.92 09/27/12 54.67 53.19
5,582.84 12/28/12 54.75 53.27
5,581.97 03/28/13 55.62 54.14
5,581.19 06/27/13 56.40 54.92
5,580.50 09/27/13 57.09 55.61
5,579.73 12/20/13 57.86 56.38
5,578.61 03/27/14 58.98 57.50
Water Levels and Data over Time
White Mesa Mill -Well TW 4-9
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,636.11 5,637.59 1.48 120.1
5,577.24 06/25/14 60.35 58.87
5,576.24 09/25/14 61.35 59.87
5,576.44 12/17/14 61.15 59.67
5,576.35 03/26/15 61.24 59.76
5,576.48 06/22/15 61.11 59.63
5,575.98 09/30/15 61.61 60.13
5,575.41 12/02/15 62.18 60.70
5,575.38 03/30/16 62.21 60.73
5,574.74 06/30/16 62.85 61.37
5,574.26 09/29/16 63.33 61.85
5,573.88 12/21/16 63.71 62.23
5,573.99 03/30/17 63.60 62.12
5,573.49 06/27/17 64.10 62.62
5,573.05 09/28/17 64.54 63.06
5,572.34 11/30/17 65.25 63.77
5,574.97 03/28/18 62.62 61.14
5,571.69 06/22/18 65.90 64.42
5,571.20 09/25/18 66.39 64.91
5,570.92 12/17/18 66.67 65.19
5,570.16 03/25/19 67.43 65.95
5,570.17 06/24/19 67.42 65.94
5,570.01 08/12/19 67.58 66.10
5,569.66 11/18/19 67.93 66.45
5,569.38 02/10/20 68.21 66.73
5,569.04 05/04/20 68.55 67.07
5,568.30 09/22/20 69.29 67.81
5,568.12 12/30/20 69.47 67.99
5,568.18 03/11/21 69.41 67.93
5,567.66 06/24/21 69.93 68.45
5,567.54 08/13/21 70.05 68.57
5,567.77 12/30/21 69.82 68.34
5,567.12 02/10/22 70.47 68.99
5,567.68 06/28/22 69.91 68.43
5,566.83 08/15/22 70.76 69.28
5,566.66 11/17/22 70.93 69.45
-.J 0
Depth Below Measuring Point (ft.)
0\ VI 0\ 0 VI VI
VI 0
i • 1 -...:.. r ti;ji~jgg
10/15/00
03/14/01
08/11/01
01/08/02
06/07/02
11/04/02
04/03/03
08/31/03
01/28/04
06/26/04
11/23/04
04/22/05
09/19/05
02/16/06
07/16/06
12/13/06
05/12/07
10/09/07
03/07/08
08/04/08
01/01/09
05/31/09
10/28/09
03/27/10
08/24/10
01/21/11
06/20/11
11/17/11
04/15/12
09/12/12
02/09/13
07/09/13
12/06/13
05/05/14
10/02/14
03/01/15
07/29/15
12/26/15
05/24/16
10/21/16
03/20/17
08/17/17
01/14/18
06/13/18
11/10/18
04/09/19
09/06/19
02/03/20
07/02/20
11/29/20
04/28/21
09/25/21
02/22/22
07/22/22
12/19/22
05/18/23
10/15/23
03/13/24
~ ! I 'IQ
~ ;-
'"1
~ ~ "'Cl ~
0 -< ~ '"1
~ .... a ~ --?
C" -a
"'Cl '-'
Water Levels and Data over Time
White Mesa Mill -Well TW 4-10
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth Of
(WL) (LSD) (MP) (L) Monitoring (blw.MP) (blw.LSD) Well
5,631.99 5,634.24 2.25 113.2
5,576.75 01/03/02 57.49 55.24
5,576.92 02/06/02 57.32 55.07
5,577.43 03/26/02 56.81 54.56
5,577.22 04/09/02 57.02 54.77
5,577.80 05/23/02 56.44 54.19
5,577.47 06/05/02 56.77 54.52
5,577.55 07/08/02 56.69 54.44
5,578.10 08/23/02 56.14 53.89
5,578.24 09/11/02 56.00 53.75
5,578.49 10/23/02 55.75 53.50
5,578.43 11/22/02 55.81 53.56
5,578.43 12/03/02 55.81 53.56
5,578.66 01/09/03 55.58 53.33
5,578.66 02/12/03 55.58 53.33
5,578.78 03/26/03 55.46 53.21
5,578.90 04/02/03 55.34 53.09
5,578.83 05/01/03 55.41 53.16
5,578.05 06/09/03 56.19 53.94
5,577.38 07/07/03 56.86 54.61
5,577.15 08/04/03 57.09 54.84
5,576.76 09/11/03 57.48 55.23
5,576.36 10/02/03 57.88 55.63
5,576.05 11/07/03 58.19 55.94
5,576.20 12/03/03 58.04 55.79
5,577.43 01/15/04 56.81 54.56
5,577.81 02/10/04 56.43 54.18
5,578.47 03/28/04 55.77 53.52
5,578.69 04/12/04 55.55 53.30
5,578.93 05/13/04 55.31 53.06
5,578.99 06/18/04 55.25 53.00
5,579.18 07/28/04 55.06 52.81
5,579.06 08/30/04 55.18 52.93
5,578.78 09/16/04 55.46 53.21
5,577.80 10/11/04 56.44 54.19
5,577.13 11/16/04 57.11 54.86
5,576.96 12/22/04 57.28 55.03
5,576.63 01/18/05 57.61 55.36
5,576.82 02/28/05 57.42 55.17
5,576.86 03/15/05 57.38 55.13
5,577.52 04/26/05 56.72 54.47
5,578.01 05/24/05 56.23 53.98
5,578.15 06/30/05 56.09 53.84
5,577.90 07/29/05 56.34 54.09
Water Levels and Data over Time
White Mesa Mill -Well TW4-10
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth Of
(WL) (LSD) (MP) (L) Monitoring (blw.MP) (blw.LSD) Well
5,631.99 5,634.24 2.25 113.2
5,578.02 09/12/05 56.22 53.97
5,577.56 12/07/05 56.68 54.43
5,579.69 03/08/06 54.55 52.30
5,578.34 06/13/06 55.90 53.65
5,577.94 07/18/06 56.30 54.05
5,578.01 11/07/06 56.23 53.98
5578.43 02/27/07 55.81 53.56
5,577.84 05/02/07 56.40 54.15
5,578.74 08/14/07 55.50 53.25
5,579.04 10/10/07 55.20 52.95
5,580.69 03/26/08 53.55 51.30
5,579.87 06/24/08 54.37 52.12
5,579.47 08/26/08 54.77 52.52
5,578.87 10/14/08 55.37 53.12
5,578.01 03/10/09 56.23 53.98
5,577.85 06/24/09 56.39 54.14
5,577.49 09/10/09 56.75 54.50
5,577.98 12/11/09 56.26 54.01
5,578.38 03/11/10 55.86 53.61
5,578.16 05/11/10 56.08 53.83
5,577.85 09/29/10 56.39 54.14
5,577.28 12/21/10 56.96 54.71
5,577.14 02/28/11 57.10 54.85
5,578.09 06/21/11 56.15 53.90
5,578.24 09/20/11 56.00 53.75
5,578.74 12/21/11 55.50 53.25
5,577.89 03/27/12 56.35 54.10
5,577.90 06/28/12 56.34 54.09
5,578.29 09/27/12 55.95 53.70
5,577.87 12/28/12 56.37 54.12
5,577.92 03/28/13 56.32 54.07
5,577.19 06/27/13 57.05 54.80
5,576.77 09/27/13 57.47 55.22
5,576.22 12/20/13 58.02 55.77
5,575.36 03/27/14 58.88 56.63
5,574.11 06/25/14 60.13 57.88
5,573.19 09/25/14 61.05 58.80
5,573.19 12/17/14 61.05 58.80
5,573.12 03/26/15 61.12 58.87
5,573.33 06/22/15 60.91 58.66
5,572.98 09/30/15 61.26 59.01
5,572.39 12/02/15 61.85 59.60
5,572.64 03/30/16 61.60 59.35
Water Levels and Data over Time
White Mesa Mill -Well TW4-10
Total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth Of
(WL) (LSD) (MP) (L) Monitoring (blw.MP) (blw.LSD) Well
5,631.99 5,634.24 2.25 113.2
5,571.79 06/30/16 62.45 60.20
5,571.27 09/29/16 62.97 60.72
5,570.94 12/21/16 63.30 61.05
5,571.09 03/30/17 63.15 60.90
5,570.59 06/27/17 63.65 61.40
5,570.12 09/28/17 64.12 61.87
5,569.42 11/30/17 64.82 62.57
5,569.06 03/28/18 65.18 62.93
5,568.81 06/22/18 65.43 63.18
5,568.33 09/25/18 65.91 63.66
5,568.08 12/17/18 66.16 63.91
5,567.33 03/25/19 66.91 64.66
5,567.39 06/24/19 66.85 64.60
5,567.21 08/12/19 67.03 64.78
5,566.88 11/18/19 67.36 65.11
5,566.61 02/10/20 67.63 65.38
5,566.27 05/04/20 67.97 65.72
5,565.53 09/22/20 68.71 66.46
5,565.33 12/30/20 68.91 66.66
5,565.46 03/11/21 68.78 66.53
5,564.86 06/24/21 69.38 67.13
5,564.89 08/13/21 69.35 67.10
5,565.05 12/30/21 69.19 66.94
5,564.41 02/10/22 69.83 67.58
5,564.82 06/28/22 69.42 67.17
5,564.09 08/15/22 70.15 67.90
5,563.87 11/17/22 70.37 68.12
00 0 -..J 0 0\ 0
Depth Below Measuring Point (ft.)
Vl
0 ~ 0
v)
0 N -0 0 0
01/03/02
06/02/02
10/30/02
03/29/03
08/26/03
,_ 01/23/04
06/21/04
11/18/04
04/17/05
09/14/05
02/11/06
07/11/06
-12/08/06
05/07/07
10/04/07 ~ -03/02/08 ~ 07/30/08 ,,.
12/27/08 I
),,,,I
05/26/09 = 10/23/09 ~ 03/22/10
08/19/10 ~ ~
01/16/11 '"1
06/15/11 0 ~ 11/12/11 ~
04/10/12 ;.
09/07/12 0 02/04/13 <
07/04/13 ~ '"1
12/01/13 ~
04/30/14 -· e 09/27/14 ~
02/24/15 ---07/24/15 ?
12/21/15 C"' -05/19/16 e 10/16/16 ~
03/15/17
_,
08/12/17
01/09/18
06/08/18
11/05/18
04/04/19
09/01/19
01/29/20
06/27/20
11/24/20
04/23/21
09/20/21
02/17/22
07/17/22
12/14/22
05/13/23
10/10/23
03/08/24
Water Levels and Data over Time
White Mesa Mill -Well TW 4-11
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,621.92 5,623.62 1.70 102.4
5,548.32 01/03/02 75.30 73.60
5,548.73 02/06/02 74.89 73.19
5,549.03 03/26/02 74.59 72.89
5,548.84 04/09/02 74.78 73.08
5,549.30 05/23/02 74.32 72.62
5,549.01 06/05/02 74.61 72.91
5,549.22 07/08/02 74.40 72.70
5,549.44 08/23/02 74.18 72.48
5,549.57 09/11/02 74.05 72.35
5,549.64 10/23/02 73.98 72.28
5,549.58 11/22/02 74.04 72.34
5,549.62 12/03/02 74.00 72.30
5,549.85 01/09/03 73.77 72.07
5,549.91 02/12/03 73.71 72.01
5,550.15 03/26/03 73.47 71.77
5,550.01 04/02/03 73.61 71.91
5,550.31 05/01/03 73.31 71.61
5,550.44 06/09/03 73.18 71.48
5,550.33 07/07/03 73.29 71.59
5,550.35 08/04/03 73.27 71.57
5,550.44 09/11/03 73.18 71.48
5,550.47 10/02/03 73.15 71.45
5,550.60 11/07/03 73.02 71.32
5,550.60 12/03/03 73.02 71.32
5,550.94 01/15/04 72.68 70.98
5,551.00 02/10/04 72.62 70.92
5,550.34 03/28/04 73.28 71.58
5,551.54 04/12/04 72.08 70.38
5,551.89 05/13/04 71.73 70.03
5,551.94 06/18/04 71.68 69.98
5,552.49 07/28/04 71.13 69.43
5,552.74 08/30/04 70.88 69.18
5,553.01 09/16/04 70.61 68.91
5,553.11 10/11/04 70.51 68.81
5,553.19 11/16/04 70.43 68.73
5,553.53 12/22/04 70.09 68.39
5,553.31 01/18/05 70.31 68.61
5,553.84 02/28/05 69.78 68.08
5,554.04 03/15/05 69.58 67.88
5,554.23 04/26/05 69.39 67.69
5,553.87 05/24/05 69.75 68.05
5,554.46 06/30/05 69.16 67.46
5,554.57 07/29/05 69.05 67.35
Water Levels and Data over Time
White Mesa Mill -Well TW 4-11
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,621.92 5,623.62 1.70 102.4
5,553.86 09/12/05 69.76 68.06
5,555.30 12/07/05 68.32 66.62
5,556.20 03/08/06 67.42 65.72
5,556.48 06/14/06 67.14 65.44
5,556.37 07/18/06 67.25 65.55
5,556.94 11/07/06 66.68 64.98
5557.92 02/27/07 65.70 64.00
5,557.84 05/02/07 65.78 64.08
5,558.02 08/15/07 65.60 63.90
5,557.13 10/10/07 66.49 64.79
5,569.74 03/26/08 53.88 52.18
5,561.01 06/24/08 62.61 60.91
5,562.07 08/26/08 61.55 59.85
5,562.47 10/14/08 61.15 59.45
5,563.80 03/10/09 59.82 58.12
5,564.27 06/24/09 59.35 57.65
5,564.32 09/10/09 59.30 57.60
5,564.70 12/11/09 58.92 57.22
5,565.14 03/11/10 58.48 56.78
5,565.61 05/11/10 58.01 56.31
5,565.67 09/29/10 57.95 56.25
5,565.62 12/21/10 58.00 56.30
5,565.42 02/28/11 58.20 56.50
5,566.01 06/21/11 57.61 55.91
5,566.03 09/20/11 57.59 55.89
5,566.63 12/21/11 56.99 55.29
5,565.81 03/27/12 57.81 56.11
5,565.82 06/28/12 57.80 56.10
5,566.66 09/27/12 56.96 55.26
5,565.77 12/28/12 57.85 56.15
5,566.89 03/28/13 56.73 55.03
5,566.32 06/27/13 57.30 55.60
5,565.92 09/27/13 57.70 56.00
5,565.63 12/20/13 57.99 56.29
5,565.03 03/27/14 58.59 56.89
5,564.18 06/25/14 59.44 57.74
5,563.52 09/25/14 60.10 58.40
5,563.37 12/17/14 60.25 58.55
5,532.62 03/26/15 91.00 89.30
5,527.07 06/22/15 96.55 94.85
5,533.27 09/30/15 90.35 88.65
5,532.67 12/02/15 90.95 89.25
5,531.44 03/30/16 92.18 90.48
Water Levels and Data over Time
White Mesa Mill -Well TW 4-11
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,621.92 5,623.62 1.70 102.4
5,529.85 06/30/16 93.77 92.07
5,530.64 09/29/16 92.98 91.28
5,530.61 12/21/16 93.01 91.31
5,538.48 03/30/17 85.14 83.44
5,529.93 06/27/17 93.69 91.99
5,530.41 09/28/17 93.21 91.51
5,531.26 11/30/17 92.36 90.66
5,530.28 03/28/18 93.34 91.64
5,530.36 06/22/18 93 .26 91.56
5,530.41 09/24/18 93.21 91.51
5,531.96 12/17/18 91.66 89.96
5,532.84 03/25/19 90.78 89.08
5,533.62 06/24/19 90.00 88.30
5,532.49 08/12/19 91.13 89.43
5,532.50 11/18/19 91.12 89.42
5,533.60 02/10/20 90.02 88.32
5,533.02 05/04/20 90.60 88.90
5,530.54 09/21/20 93.08 91.38
5,533.51 12/28/20 90.11 88.41
5,533.54 03/11/21 90.08 88.38
5,534.12 06/24/21 89.50 87.80
5,533.72 08/13/21 89.90 88.20
5,533.62 12/30/21 90.00 88.30
5,533.51 02/10/22 90.11 88.41
5,534.08 06/28/22 89.54 87.84
5,533.84 08/15/22 89.78 88.08
5,533.21 11/17/22 90.41 88.71
......
8 \0
V,
\0 0
Depth Below Measuring Point (ft.)
00 V, 00 0
--.,l
V,
--.,l
0 °' V, °' 0 V,
V,
V, 0
01/03/02
06/02/02
10/30/02
03/29/03
08/26/03
-01/23/04
06/21/04
-11/18/04
04/17/05
09/14/05
02/11/06
07/11/06
12/08/06
05/07/07
10/04/07 ~ 03/02/08 ~ 07/30/08 ,I:;;,,. 12/27/08 I i,... 05/26/09 i,...
10/23/09 ~ 03/22/10
08/19/10 ~ ~
01/16/11 ""1
06/15/11 ~ ~ 11/12/11 "Cl ~ 04/10/12 =--09/07/12 0 -02/04/13 -<
07/04/13 ~ ""1
-12/01/13 ~
04/30/14 ... a 09/27/14 ~
02/24/15 ,-._
07/24/15 ?
12/21/15 a -05/19/16 a 10/16/16 "Cl '-' 03/15/17
08/12/17
01/09/18
06/08/18
11/05/18
04/04/19
-09/01/19
01/29/20
06/27/20
11/24/20
04/23/21
-09/20/21
-02/17/22
-07/17/22
12/14/22
05/13/23
10/10/23
03/08/24
Water Levels and Data over Time
White Mesa Mill -Well TW 4-12
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5 622.38 5 624.23 1.85 103.2
5 580.91 08/23/02 43.32 41.47
5,581.54 09/11/02 42.69 40.84
5,581.33 10/23/02 42.90 41.05
5,581.47 11/22/02 42.76 40.91
5,581.55 12/03/02 42.68 40.83
5,582.58 01/09/03 41.65 39.80
5,582.47 02/12/03 41.76 39.91
5,582.71 03/26/03 41.52 39.67
5,582.11 04/02/03 42.12 40.27
5,582.92 05/01/03 41.31 39.46
5,583.13 06/09/03 41.10 39.25
5,583.21 07/07/03 41.02 39.17
5,583.31 08/04/03 40.92 39.07
5,583.55 09/11/03 40.68 38.83
5,583.72 10/02/03 40.51 38.66
5,583.77 11/07/03 40.46 38.61
5,584.01 12/03/03 40.22 38.37
5,584.37 01/15/04 39.86 38.01
5,584.39 02/10/04 39.84 37.99
5,584.51 03/28/04 39.72 37.87
5,584.90 04/12/04 39.33 37.48
5,584.88 05/13/04 39.35 37.50
5,584.93 06/18/04 39.30 37.45
5,585.36 07/28/04 38.87 37.02
5,585.38 08/30/04 38.85 37.00
5,585.49 09/16/04 38.74 36.89
5,585.85 10/11/04 38.38 36.53
5,585.91 11/16/04 38.32 36.47
5,586.35 12/22/04 37.88 36.03
5,586.14 01/18/05 38.09 36.24
5,586.56 02/28/05 37.67 35.82
5,586.95 03/15/05 37.28 35.43
5,587.20 04/26/05 37.03 35.18
5,587.35 05/24/05 36.88 35.03
5,587.58 06/30/05 36.65 34.80
5,587.58 07/29/05 36.65 34.80
5,587.94 09/12/05 36.29 34.44
5,588.43 12/07/05 35.80 33.95
5,588.92 03/08/06 35.31 33.46
5,588.34 06/13/06 35.89 34.04
5,588.33 07/18/06 35.90 34.05
5,584.70 11/07/06 39.53 37.68
5588.85 02/27/07 35.38 33.53
Water Levels and Data over Time
White Mesa Mill -Well TW 4-12
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,622.38 5,624.23 1.85 103.2
5,588.53 05/02/07 35.70 33.85
5,586.49 08/14/07 37.74 35.89
5,586.68 10/10/07 37.55 35.70
5,587.76 03/26/08 36.47 34.62
5,587.59 06/24/08 36.64 34.79
5,587.35 08/26/08 36.88 35.03
5,586.84 10/14/08 37.39 35.54
5,586.17 03/03/09 38.06 36.21
5,585.74 06/24/09 38.49 36.64
5,585.54 09/10/09 38.69 36.84
5,585.77 12/11/09 38.46 36.61
5,585.88 03/11/10 38.35 36.50
5,586.35 05/11/10 37.88 36.03
5,585.68 09/29/10 38.55 36.70
5,585.09 12/21/10 39.14 37.29
5,584.65 02/28/11 39.58 37.73
5,584.76 06/21/11 39.47 37.62
5,584.32 09/20/11 39.91 38.06
5,584.22 12/21/11 40.01 38.16
5,577.07 03/27/12 47.16 45.31
5,577.05 06/28/12 47.18 45.33
5,583.14 09/27/12 41.09 39.24
5,577.10 12/28/12 47.13 45.28
5,582.71 03/28/13 41.52 39.67
5,582.25 06/27/13 41.98 40.13
5,582.24 09/27/13 41.99 40.14
5,582.12 12/20/13 42.11 40.26
5,581.67 03/27/14 42.56 40.71
5,581.03 06/25/14 43.20 41.35
5,580.49 09/25/14 43.74 41.89
5,580.33 12/17/14 43.90 42.05
5,579.28 03/26/15 44.95 43.10
5,579.23 06/22/15 45.00 43.15
5,578.87 09/30/15 45.36 43.51
5,578.53 12/02/15 45.70 43.85
5,578.53 03/30/16 45.70 43.85
5,578.03 06/30/16 46.20 44.35
5,577.54 09/29/16 46.69 44.84
5,577.27 12/21/16 46.96 45.11
5,577.00 03/30/17 47.23 45.38
5,576.59 06/27/17 47.64 45 .79
5,576.00 09/28/17 48.23 46.38
5,575.27 11/29/17 48.96 47.11
Water Levels and Data over Time
White Mesa Mill -Well TW 4-12
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,622.38 5,624.23 1.85 103.2
5,573.64 03/28/18 50.59 48.74
5,572.58 06/22/18 51.65 49.80
5,571.91 09/25/18 52.32 50.47
5,571.49 12/17/18 52.74 50.89
5,570.77 03/25/19 53.46 51.61
5,570.78 06/24/19 53.45 51.60
5,570.54 08/12/19 53.69 51.84
5,570.06 11/18/19 54.17 52.32
5,570.02 02/10/20 54.21 52.36
5,569.45 05/04/20 54.78 52.93
5,569.03 09/22/20 55.20 53.35
5,568.91 12/30/20 55.32 53.47
5,568.99 03/11/21 55.24 53.39
5,568.44 06/24/21 55.79 53.94
5,568.35 08/13/21 55.88 54.03
5,568.70 12/30/21 55.53 53.68
5,567.90 02/10/22 56.33 54.48
5,568.45 06/28/22 55.78 53.93
5,567.92 08/15/22 56.31 54.46
5,567.68 11/17/23 56.55 54.70
VI \0 U\ .j:s,.
Depth Below Measuring Point (ft.)
.j:s,.
\0
.j:s,. .j:s,. w
\0
w .j:s,.
l-------+-----+-----1--+-----+------+ 08/23/02
01/20/03
06/19/03
11/16/03
04/14/04
09/11/04
02/08/05
07/08/05
12/05/05
05/04/06
10/01/06
02/28/07
07/28/07
12/25/07
05/23/08
10/20/08
03/19/09
08/16/09
01/13/10
06/12/10
11/09/10
04/08/11
09/05/11
02/02/12
07/01/12
11/28/12
04/27/13
09/24/13
02/21/14
07/21/14
12/18/14
05/17/15
10/14/15
03/12/16
08/09/16
01/06/17
06/05/17
11/02/17
04/01/18
08/29/18
01/26/19
06/25/19
11/22/19
04/20/20
09/17/20
1· 02/14/21
~ 07/14/21
-12/11/21
-05/10/22
-10/07/22
03/06/23
08/03/23
12/31/23
05/29/24
10/26/24
'------------L...-----'------'-------'-----~ 03/25/25
~ 1 I
1--N
~ ~ "'1
~ ~ Er
0 ~ ~ "'1
~ ...
9 ~ ,_
?
O"" a "CS --
Water Levels and Data over Time
White Mesa Mill -Well TW 4-13
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,618.09 5,619.94 1.85 105.7
5,529.66 08/23/02 90.28 88.43
5,530.66 09/11/02 89.28 87.43
5,529.10 10/23/02 90.84 88.99
5,530.58 11/22/02 89.36 87.51
5,530.61 12/03/02 89.33 87.48
5,529.74 01/09/03 90.20 88.35
5,531.03 02/12/03 88.91 87.06
5,531.82 03/26/03 88.12 86.27
5,524.63 04/02/03 95.31 93.46
5,531.54 05/01/03 88.40 86.55
5,538.46 06/09/03 81.48 79.63
5,539.38 07/07/03 80.56 78.71
5,540.72 08/04/03 79.22 77.37
5,541.25 09/11/03 78.69 76.84
5,541.34 10/02/03 78.60 76.75
5,541.69 11/07/03 78.25 76.40
5,541.91 12/03/03 78.03 76.18
5,542.44 01/15/04 77.50 75.65
5,542.47 02/10/04 77.47 75 .62
5,542.84 03/28/04 77.10 75.25
5,543.08 04/12/04 76.86 75.01
5,543.34 05/13/04 76.60 74.75
5,543.40 06/18/04 76.54 74.69
5,544.06 07/28/04 75.88 74.03
5,544.61 08/30/04 75.33 73.48
5,545.23 09/16/04 74.71 72.86
5,546.20 10/11/04 73.74 71.89
5,547.43 11/16/04 72.51 70.66
5,548.96 12/22/04 70.98 69.13
5,549.02 01/18/05 70.92 69.07
5,550.66 02/28/05 69.28 67.43
5,551.26 03/15/05 68.68 66.83
5,552.23 04/26/05 67.71 65.86
5,552.87 05/24/05 67.07 65.22
5,553.42 06/30/05 66.52 64.67
5,554.00 07/29/05 65.94 64.09
5,555.21 09/12/05 64.73 62.88
5,558.13 12/07/05 61.81 59.96
5,562.93 03/08/06 57.01 55.16
5,564.39 06/13/06 55.55 53.70
5,562.09 07/18/06 57.85 56.00
5,565.49 11/07/06 54.45 52.60
5,571.08 02/27/07 48.86 47.01
Water Levels and Data over Time
White Mesa Mill -Well TW 4-13
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,618.09 5,619.94 1.85 105.7
5,570.63 05/02/07 49.31 47.46
5,565.24 08/14/07 54.70 52.85
5,565.83 10/10/07 54.11 52.26
5,569.29 03/26/08 50.65 48.80
5,570.00 06/24/08 49.94 48.09
5,570.41 08/26/08 49.53 47.68
5,570.64 10/14/08 49.30 47.45
5,570.43 03/03/09 49.51 47.66
5,570.56 06/24/09 49.38 47.53
5,570.42 09/10/09 49.52 47.67
5,571.15 12/11/09 48.79 46.94
5,572.01 03/11/10 47.93 46.08
5,572.88 05/11/10 47.06 45.21
5,573.17 09/29/10 46.77 44.92
5,573.14 12/21/10 46.80 44.95
5,573.10 02/28/11 46.84 44.99
5,573.75 06/21/11 46.19 44.34
5,573.63 09/20/11 46.31 44.46
5,573.94 12/21/11 46.00 44.15
5,572.79 03/27/12 47.15 45.30
5,572.77 06/28/12 47.17 45.32
5,573.04 09/27/12 46.90 45.05
5,572.79 12/28/12 47.15 45.30
5,573.03 03/28/13 46.91 45.06
5,572.44 06/27/13 47.50 45.65
5,573.46 09/27/13 46.48 44.63
5,573.46 12/20/13 46.48 44.63
5,572.90 03/27/14 47.04 45.19
5,571.79 06/25/14 48.15 46.30
5,571.04 09/25/14 48.90 47.05
5,571.08 12/17/14 48.86 47.01
5,569.50 03/26/15 50.44 48.59
5,569.16 06/22/15 50.78 48.93
5,568.66 09/30/15 51.28 49.43
5,568.02 12/02/15 51.92 50.07
5,568.39 03/30/16 51.55 49.70
5,567.49 06/30/16 52.45 50.60
5,566.99 09/29/16 52.95 51.10
5,566.94 12/21/16 53.00 51.15
5,567.24 03/30/17 52.70 50.85
5,566.79 06/27/17 53.15 51.30
5,566.43 09/28/17 53.51 51.66
5,566.28 11/29/17 53.66 51.81
Water Levels and Data over Time
White Mesa Mill -Well TW 4-13
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,618.09 5,619.94 1.85 105.7
5,566.24 03/28/18 53.70 51.85
5,566.03 06/22/18 53.91 52.06
5,565.61 09/25/18 54.33 52.48
5,565.32 12/17/18 54.62 52.77
5,564.78 03/25/19 55.16 53.31
5,564.99 06/24/19 54.95 53.10
5,564.78 08/12/19 55.16 53.31
5,564.39 11/18/19 55.55 53.70
5,564.39 02/10/20 55.55 53.70
5,563.82 05/04/20 56.12 54.27
5,563.55 09/22/20 56.39 54.54
5,563.51 12/30/20 56.43 54.58
5,563.66 03/11/21 56.28 54.43
5,563.14 06/24/21 56.80 54.95
5,562.99 08/13/21 56.95 55.10
5,563.28 12/30/21 56.66 54.81
5,562.69 02/10/22 57.25 55.40
5,563.11 06/28/22 56.83 54.98
5,562.34 08/15/22 57.60 55.75
5,562.12 11/17/22 57.82 55.97
......
8 \0 0
Depth Below Measuring Point (ft.)
00 0 --..J 0 °' 0
V,
0 ~ 0
f----____,. ___ ---+-----+-----t------t----,-08/23/02
01/20/03
06/19/03
11/16/03
04/14/04
09/11/04
02/08/05
07/08/05
12/05/05
05/04/06
10/01/06
02/28/07
07/28/07
12/25/07
05/23/08
10/20/08
03/19/09
08/16/09
01/13/10
06/12/10
11/09/10
04/08/11
09/05/11
02/02/12
07/01/12
11/28/12
04/27/13
09/24/13
02/21/14
07/21/14
12/18/14
05/17/15
10/14/15
03/12/16
08/09/16
01/06/17
06/05/17
11/02/17
04/01/18
08/29/18
-01/26/19
06/25/19
11/22/19
04/20/20
09/17/20
02/14/21
07/14/21
-12/11/21
05/10/22
-10/07/22
-03/06/23
-08/03/23 .__ __ ___,_ ___ _____,__ ___ __._ ___ ~---~--~12/31/23
~ ~ ,I;;,..
I t,,,,l
~
~ ;-
'"1
0 ~ "'O ;.
0 < ~ '"1
~ ... a ~ --?
-r:::r -a "'O --
Water Levels and Data over Time
White Mesa Mill-Well TW4-14
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,610.92 5,612.77 1.85 95.1
5,518.90 08/23/02 93.87 92.02
5,519.28 09/11/02 93.49 91.64
5,519.95 10/23/02 92.82 90.97
5,520.32 11/22/02 92.45 90.60
5,520.42 12/03/02 92.35 90.50
5,520.70 01/09/03 92.07 90.22
5,520.89 02/12/03 91.88 90.03
5,521.12 03/26/03 91.65 89.80
5,521.12 04/02/03 91.65 89.80
5,521.24 05/01/03 91.53 89.68
5,521.34 06/09/03 91.43 89.58
5,521.36 07/07/03 91.41 89.56
5,521.35 08/04/03 91.42 89.57
5,521.30 09/11/03 91.47 89.62
5,521.35 10/02/03 91.42 89.57
5,521.36 11/07/03 91.41 89.56
5,521.16 12/03/03 91.61 89.76
5,521.29 01/15/04 91.48 89.63
5,521.36 02/10/04 91.41 89.56
5,521.46 03/28/04 91.31 89.46
5,521.54 04/12/04 91.23 89.38
5,521.59 05/13/04 91.18 89.33
5,521.69 06/18/04 91.08 89.23
5,521.71 07/28/04 91.06 89.21
5,521.76 08/30/04 91.01 89.16
5,521.77 09/16/04 91.00 89.15
5,521.79 10/11/04 90.98 89.13
5,521.80 11/16/04 90.97 89.12
5,521.82 12/22/04 90.95 89.10
5,521.82 01/18/05 90.95 89.10
5,521.86 02/28/05 90.91 89.06
5,521.85 03/15/05 90.92 89.07
5,521.91 04/26/05 90.86 89.01
5,521.93 05/24/05 90.84 88.99
5,521.94 06/30/05 90.83 88.98
5,521.84 07/29/05 90.93 89.08
5,521.99 09/12/05 90.78 88.93
5,522.04 12/07/05 90.73 88.88
5,522.05 03/08/06 90.72 88.87
5,522.27 06/13/06 90.50 88.65
5,521.92 07/18/06 90.85 89.00
5,520.17 11/07/06 92.60 90.75
5,522.24 02/27/07 90.53 88.68
Water Levels and Data over Time
White Mesa Mill· Well TW4-14
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,610.92 5,612.77 1.85 95.1
5,522.47 05/02/07 90.30 88.45
5,520.74 08/14/07 92.03 90.18
5,518.13 10/10/07 94.64 92.79
5,522.85 03/26/08 89.92 88.07
5,522.91 06/24/08 89.86 88.01
5,523.01 08/26/08 89.76 87.91
5,522.96 10/14/08 89.81 87.96
5,523.20 03/03/09 89.57 87.72
5,523.33 06/24/09 89.44 87.59
5,523.47 09/10/09 89.30 87.45
5,523.54 12/11/09 89.23 87.38
5,522.98 03/11/10 89.79 87.94
5,524.01 05/11/10 88.76 86.91
5,524.37 09/29/10 88.40 86.55
5,524.62 12/21/10 88.15 86.30
5,524.78 02/28/11 87.99 86.14
5,525.23 06/21/11 87.54 85.69
5,525.45 09/20/11 87.32 85.47
5,525.72 12/21/11 87.05 85.20
5,525.88 03/27/12 86.89 85.04
5,525.97 06/28/12 86.80 84.95
5,526.32 09/27/12 86.45 84.60
5,525.88 12/28/12 86.89 85.04
5,526.91 03/28/13 85.86 84.01
5,526.99 06/27/13 85.78 83.93
5,527.68 09/27/13 85.09 83.24
5,528.19 12/20/13 84.58 82.73
5,528.75 03/27/14 84.02 82.17
5,529.21 06/25/14 83.56 81.71
5,529.78 09/25/14 82.99 81.14
5,530.41 12/17/14 82.36 80.51
5,530.86 03/26/15 81.91 80.06
5,531.40 06/22/15 81.37 79.52
5,532.15 09/30/15 80.62 78.77
5,532.12 12/02/15 80.65 78.80
5,533.12 03/30/16 79.65 77.80
5,533.13 06/30/16 79.64 77.79
5,533.24 09/29/16 79.53 77.68
5,533.42 12/21/16 79.35 77.50
5,533.97 03/30/17 78.80 76.95
5,534.05 06/27/17 78.72 76.87
5,534.07 09/28/17 78.70 76.85
5,534.29 11/29/17 78.48 76.63
Water Levels and Data over Time
White Mesa Mill-Well TW4-14
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,610.92 5,612.77 1.85 95.1
5,534.56 03/28/18 78.21 76.36
5,534.67 06/22/18 78.10 76.25
5,534.75 09/25/18 78.02 76.17
5,534.71 12/17/18 78.06 76.21
5,534.71 03/25/19 78.06 76.21
5,535.04 06/24/19 77.73 75.88
5,535.17 08/12/19 77.60 75.75
5,535.09 11/18/19 77.68 75.83
5,535.31 02/10/20 77.46 75.61
5,535.12 05/04/20 77.65 75.80
5,535.25 09/22/20 77.52 75.67
5,535.54 12/30/20 77.23 75.38
5,535.55 03/11/21 77.22 75.37
5,535.41 06/24/21 77.36 75.51
5,535.25 08/13/21 77.52 75.67
5,535.65 12/30/21 77.12 75.27
5,535.43 02/10/22 77.34 75.49
5,535.40 06/28/22 77.37 75.52
5,535.37 08/15/22 77.40 75.55
5,535.26 11/17/22 77.51 75.66
-0 0
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--..I 0
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-01/06/17 ~ '-" -06/05/17
11/02/17
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01/26/19
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-04/20/20
09/17/20
02/14/21
I-07/14/21
L 12/11/21
I-05/10/22
I-10/07/22
L 03/06/23
L 08/03/23
12/31/23
Water Levels and Data over Time
White Mesa Mill-Well MW-26
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,624.15 5,625 .45 1.30 121.33
5,574.75 08/23/02 50.70 49.40
5,574.97 09/11/02 50.48 49.18
5,575.10 10/23/02 50.35 49.05
5,574.99 11/22/02 50.46 49.16
5,575.28 12/03/02 50.17 48.87
5,575.41 01/09/03 50.04 48.74
5,575.43 02/12/03 50.02 48.72
5,575.63 03/26/03 49.82 48.52
5,575.91 04/02/03 49.54 48.24
5,575.81 05/01/03 49.64 48.34
5,572.36 06/09/03 53.09 51.79
5,570.70 07/07/03 54.75 53.45
5,570.29 08/04/03 55.16 53.86
5,560.94 09/11/03 64.51 63.21
5,560.63 10/02/03 64.82 63.52
5,560.56 11/07/03 64.89 63.59
5,564.77 12/03/03 60.68 59.38
5,570.89 01/15/04 54.56 53.26
5,572.55 02/10/04 52.90 51.60
5,574.25 03/28/04 51.20 49.90
5,574.77 04/12/04 50.68 49.38
5,575.53 05/13/04 49.92 48.62
5,575.59 06/18/04 49.86 48.56
5,576.82 07/28/04 48.63 47.33
5,527.47 09/16/04 97.98 96.68
5,553.97 11/16/04 71.48 70.18
5,562.33 12/22/04 63.12 61.82
5,550.00 01/18/05 75.45 74.15
5,560.02 04/26/05 65.43 64.13
5,546.11 05/24/05 79.34 78.04
5,556.71 06/30/05 68.74 67 .44
5,554.95 07/29/05 70.50 69 .20
5,555.48 09/12/05 69.97 68.67
5,551.09 12/07/05 74.36 73.06
5,552.85 03/08/06 72.60 71 .30
5,554.30 06/13/06 71.15 69.85
5,554.87 07/18/06 70.58 69.28
5,550.88 11/07/06 74.57 73.27
5,558.77 02/27/07 66.68 65.38
5,548.54 05/02/07 76.91 75.61
5,551.33 10/10/07 74.12 72.82
5,545.56 03/26/08 79.89 78.59
5,545.56 06/25/08 79.89 78.59
Water Levels and Data over Time
White Mesa Mill-Well MW-26
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,624.15 5,625.45 1.30 121.33
5,545.82 08/26/08 79.63 78.33
5,545.64 10/14/08 79.81 78.51
5,544.45 03/03/09 81.00 79.70
5,545.32 06/24/09 80.13 78.83
5,544.61 09/10/09 80.84 79.54
5,549.33 12/11/09 76.12 74.82
5,543.78 03/11/10 81.67 80.37
5,545.61 05/11/10 79.84 78.54
5,547.43 09/29/10 78.02 76.72
5,544.14 12/21/10 81.31 80.01
5,546.77 02/28/11 78.68 77 .38
5,537.60 06/21/11 87.85 86.55
5,551.46 09/20/11 73.99 72.69
5,549.12 12/21/11 76.33 75.03
5,557.30 03/27/12 68.15 66.85
5,557.38 06/28/12 68.07 66.77
5,550.86 09/27/12 74.59 73.29
5,557.30 12/28/12 68.15 66.85
5,565.37 03/28/13 60.08 58.78
5,563.55 06/27/13 61.90 60.60
5,560.12 09/27/13 65.33 64.03
5,559.27 12/20/13 66.18 64.88
5,556.65 03/27/14 68.80 67.50
5,552.23 06/25/14 73.22 71.92
5,554.05 09/25/14 71.40 70.10
5,550.65 12/17/14 74.80 73.50
5,557.55 03/26/15 67.90 66.60
5,558.51 06/22/15 66.94 65.64
5,560.81 09/30/15 64.64 63.34
5,560.25 12/02/15 65.20 63.90
5,561.07 03/30/16 64.38 63.08
5,560.51 06/30/16 64.94 63.64
5,557.99 09/29/16 67.46 66.16
5,561.26 12/21/16 64.19 62.89
5,559.85 03/30/17 65.60 64.30
5,559.35 06/27/17 66.10 64.80
5,553.30 09/28/17 72.15 70.85
5,557.38 11/30/17 68.07 66.77
5,543.85 03/28/18 81.60 80.30
5,553.27 06/22/18 72.18 70.88
5,547.57 09/24/18 77.88 76.58
5,547.63 12/20/18 77.82 76.52
5,545.54 03/25/19 79.91 78.61
Water Levels and Data over Time
White Mesa Mill -Well MW-26
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,624.15 5 625 .45 1.30 121.33
5,547.27 06/24/19 78.18 76.88
5,549.07 08/12/19 76.38 75.08
5,549.15 11/18/19 76.30 75.00
5,552.38 02/13/20 73.07 71.77
5,539.82 05/04/20 85.63 84.33
5,545.34 09/21/20 80.11 78.81
5,551.33 12/28/20 74.12 72.82
5,551.37 03/11/21 74.08 72.78
5,539.74 06/24/21 85.71 84.41
5,550.05 08/11/21 75.40 74.10
5,539.30 12/30/21 86.15 84.85
5,549.04 02/10/22 76.41 75.11
5,542.23 06/28/22 83.22 81.92
5,551.32 08/15/22 74.13 72.83
5,541.16 11/17/22 84.29 82.99
-0 0 \0 0
Depth Below Measuring Point (ft.)
00 0 --.J 0 0\ 0
u,
0
.j:>.
0
1--------+-----+----+------t----..------t--08/23/02
01/20/03
1-06/19/03
,_ 11/16/03
04/14/04
09/11/04
02/08/05
07/08/05
12/05/05
05/04/06
,_ 10/01/06
02/28/07
07/28/07
12/25/07
05/23/08
10/20/08
03/19/09
08/16/09
01/13/10
06/12/10
11/09/10
04/08/11
09/05/11
02/02/12
07/01/12
-11/28/12
-04/27/13
-09/24/13
02/21/14
07/21/14
12/18/14
05/17/15
10/14/15
03/12/16
08/09/16
01/06/17
06/05/17
11/02/17
04/01/18
08/29/18
01/26/19
06/25/19
11/22/19
04/20/20
-09/17/20
-02/14/21
07/14/21
-12/11/21
-05/10/22
10/07/22
03/06/23
08/03/23
L__ __ ____,_ ___ ---'-------'--------'------'-----~ 12/31/23
~ N 0-,
~ ~ ""'l
0 ~ "Cl ~
0 < ~ "'1
~ .... a ~ --?
'a' -a "Cl '-'
Water Levels and Data over Time
White Mesa Mill -Well TW4-16
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,625.28 5,628.65 3.37 147.6
5,562.91 08/23/02 61.11 57.74
5,563.45 09/11/02 60.57 57.20
5,563.75 10/23/02 60.27 56.90
5,563.68 11/22/02 60.34 56.97
5,563.68 12/03/02 60.34 56.97
5,564.16 01/09/03 59.86 56.49
5,564.25 02/12/03 59.77 56.40
5,564.53 03/26/03 59.49 56.12
5,564.46 04/02/03 59.56 56.19
5,564.79 05/01/03 59.23 55.86
5,564.31 06/09/03 59.71 56.34
5,563.29 07/07/03 60.73 57.36
5,562.76 08/04/03 61.26 57.89
5,561.73 09/11/03 62.29 58.92
5,561.04 10/02/03 62.98 59.61
5,560.39 11/07/03 63.63 60.26
5,559.79 12/03/03 64.23 60.86
5,561.02 01/15/04 63.00 59.63
5,561.75 02/10/04 62.27 58.90
5,562.98 03/28/04 61.04 57.67
5,563.29 04/12/04 60.73 57.36
5,564.03 05/13/04 59.99 56.62
5,564.09 06/18/04 59.93 56.56
5,565.08 07/28/04 58.94 55.57
5,564.56 08/30/04 59.46 56.09
5,563.55 09/16/04 60.47 57.10
5,561.79 10/11/04 62.23 58.86
5,560.38 11/16/04 63.64 60.27
5,559.71 12/22/04 64.31 60.94
5,559.14 01/18/05 64.88 61.51
5,558.65 02/28/05 65.37 62.00
5,558.54 03/15/05 65.48 62.11
5,558.22 04/26/05 65.80 62.43
5,558.54 05/24/05 65.48 62.11
5,559.24 06/30/05 64.78 61.41
5,559.38 07/29/05 64.64 61.27
5,559.23 09/12/05 64.79 61.42
5,557.67 12/07/05 66.35 62.98
5,557.92 03/08/06 66.10 62.73
5,558.47 06/13/06 65.55 62.18
5,558.42 07/18/06 65.60 62.23
5,558.09 11/07/06 65.93 62.56
5,557.34 02/27/07 66.68 63.31
Water Levels and Data over Time
White Mesa Mill -Well TW4-16
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,625.28 5,628.65 3.37 147.6
5,547.11 05/02/07 76.91 73.54
5,558.52 08/14/07 65.50 62.13
5,559.02 10/10/07 65.00 61.63
5,561.04 03/26/08 62.98 59.61
5,560.06 06/24/08 63.96 60.59
5,559.32 08/26/08 64.70 61.33
5,558.89 10/14/08 65.13 61.76
5,558.40 03/03/09 65.62 62.25
5,558.32 06/24/09 65.70 62.33
5,558.03 09/10/09 65.99 62.62
5,558.81 12/11/09 65.21 61.84
5,559.80 03/11/10 64.22 60.85
5,559.85 05/11/10 64.17 60.80
5,560.54 09/29/10 63.48 60.11
5,558.65 12/21/10 65.37 62.00
5,559.26 02/28/11 64.76 61.39
5,560.48 06/21/11 63.54 60.17
5,561.52 09/20/11 62.50 59.13
5,562.95 12/21/11 61.07 57.70
5,563.76 03/27/12 60.26 56.89
5,563.90 06/28/12 60.12 56.75
5,564.65 09/27/12 59.37 56.00
5,563.77 12/28/12 60.25 56.88
5,564.74 03/28/13 59.28 55.91
5,563.66 06/27/13 60.36 56.99
5,562.27 09/27/13 61.75 58.38
5,562.17 12/20/13 61.85 58.48
5,561.17 03/27/14 62.85 59.48
5,559.53 06/25/14 64.49 61.12
5,558.36 09/25/14 65.66 62.29
5,558.00 12/17/14 66.02 62.65
5,559.02 03/26/15 65.00 61.63
5,560.62 06/22/15 63.40 60.03
5,560.62 09/30/15 63.40 60.03
5,560.85 12/02/15 63.17 59.80
5,560.92 03/30/16 63.10 59.73
5,559.95 06/30/16 64.07 60.70
5,559.72 09/29/16 64.30 60.93
5,559.71 12/21/16 64.31 60.94
5,559.53 03/30/17 64.49 61.12
5,569.02 06/27/17 59.63 56.26
5,558.97 09/28/17 69.68 66.31
5,558.51 11/30/17 70.14 66.77
Water Levels and Data over Time
White Mesa Mill -Well TW 4-16
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,625.28 5,628.65 3.37 147.6
5,558.00 03/29/18 70.65 67.28
5,557.94 06/22/18 70.71 67.34
5,557.67 09/25/18 70.98 67.61
5,557.66 12/17/18 70.99 67.62
5,548.49 03/25/19 80.16 76.79
5,556.98 06/24/19 71.67 68.30
5,556.83 08/12/19 71.82 68.45
5,556.90 11/18/19 71.75 68.38
5,556.65 02/10/20 72.00 68.63
5,556.25 05/04/20 72.40 69.03
5,555.53 09/22/20 73.12 69.75
5,555.37 12/30/20 73.28 69.91
5,555.38 03/11/21 73.27 69.9
5,554.94 06/24/21 73.71 70.34
5,554.95 08/13/21 73.70 70.33
5,555.23 12/30/21 73.42 70.05
5,554.68 02/10/22 73.97 70.60
5,554.93 06/28/22 73.72 70.35
5,554.47 08/15/22 74.18 70.81
5,554.26 11/17/22 74.39 71.02
00 VI 00 0
Depth Below Measuring Point (ft.)
-.J VI -.J 0 °' VI °' 0 VI VI VI 0
L 08/23/02
-01/20/03
-06/19/03
11/16/03
04/14/04
09/11/04
-02/08/05
07/08/05
12/05/05
-05/04/06
-10/01/06
-02/28/07
-07/28/07
12/25/07
-05/23/08 1--3
-10/20/08 ~
-03/19/09 ,i:...
I
-08/16/09 ""'" °' -01/13/10 ~ -06/12/10
11/09/10 -~ 04/08/11 ""1
-09/05/11 ~
02/02/12 ~ "'C
-07/01/12 -=-11/28/12 0 04/27/13 ~
09/24/13 ~ ""1
-02/21/14 1--3
-07/21/14 ...
9 -12/18/14 ~
05/17/15 --10/14/15 ?
03/12/16 "r:::t' --08/09/16 9
-01/06/17 "'C '-"
06/05/17
-11/02/17
04/01/18
-08/29/18
01/26/19
C 06/25/19
-11/22/19
-04/20/20
-09/17/20
02/14/21 t 07/14/21
12/11/21
05/10/22
-10/07/22
~ 03/06/23
08/03/23
12/31/23
Water Levels and Data over Time
White Mesa Mill -Well MW-32
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5 623.41 5,625.24 1.83 130.6
5,542.17 08/23/02 83.07 81.24
5,542.39 09/11/02 82.85 81.02
5,542.61 10/23/02 82.63 80.80
5,542.49 11/22/02 82.75 80.92
5,542.82 12/03/02 82.42 80.59
5,543.03 01/09/03 82.21 80.38
5,543.04 02/12/03 82.20 80.37
5,543.41 03/26/03 81.83 80.00
5,543.69 04/02/03 81.55 79.72
5,543.77 05/01/03 81.47 79.64
5,544.01 06/09/03 81.23 79.40
5,544.05 07/07/03 81.19 79.36
5,543.99 08/04/03 81.25 79.42
5,544.17 09/11/03 81.07 79.24
5,544.06 10/02/03 81.18 79.35
5,544.03 11/07/03 81.21 79.38
5,543.94 12/03/03 81.30 79.47
5,543.98 01/15/04 81.26 79.43
5,543.85 02/10/04 81.39 79.56
5,544.05 03/28/04 81.19 79.36
5,544.33 04/12/04 80.91 79.08
5,544.55 05/13/04 80.69 78.86
5,544.59 06/18/04 80.65 78.82
5,545.08 07/28/04 80.16 78.33
5,545.26 08/30/04 79.98 78.15
5,545.48 09/16/04 79.76 77.93
5,545.61 10/11/04 79.63 77.80
5,545.46 11/16/04 79.78 77.95
5,545.66 12/22/04 79.58 77.75
5,545.33 01/18/05 79.91 78.08
5,545.51 02/28/05 79.73 77.90
5,545.57 03/15/05 79.67 77.84
5,545.46 04/26/05 79.78 77.95
5,545.45 05/24/05 79.79 77.96
5,545.33 06/30/05 79.91 78.08
5,545.16 07/29/05 80.08 78.25
5,545.54 09/12/05 79.70 77.87
5,545.77 12/07/05 79.47 77.64
5,546.09 03/08/06 79.15 77.32
5,545.94 06/13/06 79.30 77.47
5,545.94 07/18/06 79.30 77.47
5,546.24 11/07/06 79.00 77.17
5,546.81 02/27/07 78.43 76.60
Water Levels and Data over Time
White Mesa Mill -Well MW-32
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,623.41 5,625.24 1.83 130.6
5,546.56 05/02/07 78.68 76.85
5,546.81 08/15/07 78.43 76.6
5,546.96 10/10/07 78.28 76.45
5,547.90 03/26/08 77.34 75.51
5,548.08 06/25/08 77.16 75.33
5,548.42 08/26/08 76.82 74.99
5,548.05 10/14/08 77.19 75.36
5,548.29 03/03/09 76.95 75.12
5,548.09 06/24/09 77.15 75.32
5,547.79 09/10/09 77.45 75.62
5,548.09 12/11/09 77.15 75.32
5,548.50 03/11/10 76.74 74.91
5,548.89 05/11/10 76.35 74.52
5,548.83 09/29/10 76.41 74.58
5,548.97 12/21/10 76.27 74.44
5,548.68 02/28/11 76.56 74.73
5,549.33 06/21/11 75.91 74.08
5,549.19 09/20/11 76.05 74.22
5,550.06 12/21/11 75.18 73.35
5,550.31 03/27/12 74.93 73.10
5,550.32 06/28/12 74.92 73.09
5,550.88 09/27/12 74.36 72.53
5,550.29 12/28/12 74.95 73.12
5,551.54 03/28/13 73.70 71.87
5,550.34 06/27/13 74.90 73.07
5,551.35 09/27/13 73.89 72.06
5,551.33 12/20/13 73.91 72.08
5,550.97 03/27/14 74.27 72.44
5,550.16 06/25/14 75.08 73.25
5,549.29 09/25/14 75.95 74.12
5,548.99 12/17/14 76.25 74.42
5,548.24 03/26/15 77.00 75.17
5,548.29 06/22/15 76.95 75.12
5,548.33 09/30/15 76.91 75.08
5,547.98 12/02/15 77.26 75.43
5,548.24 03/30/16 77.00 75.17
5,547.68 06/30/16 77.56 75.73
5,547.29 09/29/16 77.95 76.12
5,547.09 12/21/16 78.15 76.32
5,547.34 03/30/17 77.90 76.07
5,546.94 06/27/17 78.30 76.47
5,546.59 09/28/17 78.65 76.82
5,546.32 11/30/17 78.92 77.09
Water Levels and Data over Time
White Mesa Mill -Well MW-32
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,623.41 5,625.24 1.83 130.6
5,546.19 03/29/18 79.05 77.22
5,545.99 06/22/18 79.25 77.42
5,545.57 09/26/18 79.67 77.84
5,545.56 12/17/18 79.68 77.85
5,545.08 03/26/19 80.16 78.33
5,544.99 06/24/19 80.25 78.42
5,544.87 08/12/19 80.37 78.54
5,544.70 11/19/19 80.54 78.71
5,544.57 02/13/20 80.67 78.84
5,544.99 05/05/20 80.25 78.42
5,543.69 09/22/20 81.55 79.72
5,543.67 12/30/20 81.57 79.74
5,543.64 03/11/21 81.60 79.77
5,543.20 06/24/21 82.04 80.21
5,543.06 08/11/21 82.18 80.35
5,543.37 12/30/21 81.87 80.04
5,542.66 02/10/22 82.58 80.75
5,542.36 06/28/22 82.88 81.05
5,542.44 08/15/22 82.80 80.97
5,542.31 11/17/22 82.93 81.10
00 .i:,. 00 N
Depth Below Measuring Point (ft.)
00 0 --..l 00 --..l 0\
--..l .f:>. --..l N
l------11'W-:------t------t------,-------y------r-----;-08/23/02
-01/20/03
06/19/03
11/16/03
04/14/04
09/11/04
02/08/05
07/08/05
12/05/05
05/04/06
10/01/06
02/28/07
07/28/07
12/25/07
05/23/08
10/20/08
03/19/09
08/16/09
01/13/10
06/12/10
,_ 11/09/10
04/08/11
,_ 09/05/11
-02/02/12
-07/01/12
-11/28/12
-04/27/13
-09/24/13
02/21/14
07/21/14
12/18/14
05/17/15
10/14/15
03/12/16
08/09/16
01/06/17
-06/05/17
!-11/02/17
04/01/18
1-08/29/18
-01/26/19
-06/25/19
11/22/19
04/20/20
-09/17/20
02/14/21
07/14/21
12/11/21
05/10/22
10/07/22
03/06/23
08/03/23 ,.__ __ ___,_ ___ ___._ ___ __._ ___ _._ ___ _.__ __ ~ 12/31/23
a: ~ ~ N
~ ;-
""f
0 ttl "Cl ~
0 -< ttl ""f
~ ... a ttl ---?
C" §"
"Cl '-"
Water Levels and Data over Time
White Mesa Mill -Well TW 4-18
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,639.13 5,641.28 2.15 136.9
5,585.13 08/23/02 56.15 54.00
5,585.41 09/11/02 55.87 53.72
5,585.47 10/23/02 55.81 53.66
5,585.40 11/22/02 55.88 53.73
5,585.68 12/03/02 55.60 53.45
5,585.90 01/09/03 55.38 53.23
5,590.79 02/12/03 50.49 48.34
5,586.18 03/26/03 55.10 52.95
5,586.36 04/02/03 54.92 52.77
5,586.24 05/01/03 55.04 52.89
5,584.93 06/09/03 56.35 54.20
5,584.46 07/07/03 56.82 54.67
5,584.55 08/04/03 56.73 54.58
5,584.01 09/11/03 57.27 55.12
5,583.67 10/02/03 57.61 55.46
5,583.50 11/07/03 57.78 55.63
5,584.08 12/03/03 57.20 55.05
5,585.45 01/15/04 55.83 53.68
5,585.66 02/10/04 55.62 53.47
5,586.13 03/28/04 55.15 53.00
5,586.39 04/12/04 54.89 52.74
5,586.66 05/13/04 54.62 52.47
5,586.77 06/18/04 54.51 52.36
5,587.35 07/28/04 53.93 51.78
5,586.34 08/30/04 54.94 52.79
5,585.85 09/16/04 55.43 53.28
5,585.22 10/11/04 56.06 53.91
5,584.70 11/16/04 56.58 54.43
5,584.81 12/22/04 56.47 54.32
5,584.68 01/18/05 56.60 54.45
5,585.02 02/28/05 56.26 54.11
5,585.25 03/15/05 56.03 53.88
5,586.31 04/26/05 54.97 52.82
5,586.97 05/24/05 54.31 52.16
5,586.58 06/30/05 54.70 52.55
5,586.10 07/29/05 55.18 53.03
5,586.05 09/12/05 55.23 53.08
5,585.86 12/07/05 55.42 53.27
5,587.13 03/08/06 54.15 52.00
5,585.93 06/13/06 55.35 53.20
5,585.40 07/18/06 55.88 53.73
5,585.38 11/07/06 55.90 53.75
5,585.83 02/27/07 55.45 53.30
Water Levels and Data over Time
White Mesa Mill -Well TW 4-18
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) WeU
5,639.13 5,641.28 2.15 136.9
5,585.15 05/02/07 56.13 53.98
5,586.47 06/24/08 54.81 52.66
5,586.30 08/26/08 54.98 52.83
5,585.21 10/14/08 56.07 53.92
5,584.47 03/03/09 56.81 54.66
5,584.35 06/24/09 56.93 54.78
5,583.88 09/10/09 57.40 55.25
5,584.43 12/11/09 56.85 54.70
5,585.26 03/11/10 56.02 53.87
5,584.17 05/11/10 57.11 54.96
5,583.61 09/29/10 57.67 55.52
5,604.29 12/21/10 36.99 34.84
5,583.56 02/28/11 57.72 55.57
5,584.73 06/21/11 56.55 54.40
5,584.71 09/20/11 56.57 54.42
5,585.03 12/21/11 56.25 54.10
5,584.63 03/27/12 56.65 54.50
5,584.67 06/28/12 56.61 54.46
5,583.98 09/27/12 57.30 55.15
5,584.65 12/28/12 56.63 54.48
5,582.88 03/28/13 58.40 56.25
5,584.63 06/27/13 56.65 54.50
5,581.38 09/27/13 59.90 57.75
5,579.71 12/20/13 61.57 59.42
5,579.26 03/27/14 62.02 59.87
5,577.73 06/25/14 63.55 61.40
5,576.79 09/25/14 64.49 62.34
5,577.11 12/17/14 64.17 62.02
5,577.18 03/26/15 64.10 61.95
5,577.13 06/22/15 64.15 62.00
5,576.63 09/30/15 64.65 62.50
5,576.20 12/02/15 65.08 62.93
5,576.05 03/30/16 65.23 63.08
5,575.35 06/30/16 65.93 63.78
5,575.02 09/29/16 66.26 64.11
5,574.34 12/21/16 66.94 64.79
5,574.73 03/30/17 66.55 64.40
5,574.13 06/27/17 67.15 65.00
5,573.51 09/28/17 67.77 65.62
5,572.93 11/29/17 68.35 66.20
5,572.51 03/29/18 68.77 66.62
5,572.28 06/22/18 69.00 66.85
5,571.72 09/26/18 69.56 67.41
Water Levels and Data over Time
White Mesa Mill -Well TW 4-18
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,639.13 5,641.28 2.15 136.9
5,571.45 12/17/18 69.83 67.68
5,570.86 03/26/19 70.42 68.27
5,570.60 06/24/19 70.68 68.53
5,570.53 08/12/19 70.75 68.60
5,570.39 11/19/19 70.89 68.74
5,570.03 02/10/20 71.25 69.10
5,569.68 05/04/20 71.60 69.45
5,568.90 09/22/20 72.38 70.23
5,568.70 12/30/20 72.58 70.43
5,568.73 03/11/21 72.55 70.40
5,568.28 06/24/21 73.00 70.85
5,568.17 08/13/21 73.11 70.96
5,568.41 12/30/21 72.87 70.72
5,567.75 02/10/22 73.53 71 .38
5,567.34 06/28/22 73.94 71.79
5,567.35 08/15/22 73.93 71.78
5,567.22 11/17/22 74.06 71.91
00 0 -.l 0 0\ 0
Depth Below Measuring Point (ft.)
VI 0 ~ VJ 0 N ......
0 0 0
08/23/02
01/20/03
06/19/03
-11/16/03
-04/14/04
-09/11/04
-02/08/05
-07/08/05
12/05/05
05/04/06
10/01/06
02/28/07
07/28/07
12/25/07
05/23/08 ~
10/20/08 ~
03/19/09 ,l;;i,.
I
08/16/09 ),,,,a
00 01/13/10 ~ 06/12/10
11/09/10 -~ 04/08/11 '"1
09/05/11 0
02/02/12 ~ "'O
07/01/12 ~
11/28/12 0 04/27/13 <
09/24/13 ~ '"1
02/21/14 ~
07/21/14 .... a 12/18/14 ~
05/17/15 -..
10/14/15 ?
03/12/16 C"' -08/09/16 a
01/06/17 "'O '-'
06/05/17
11/02/17
04/01/18
08/29/18
01/26/19
06/25/19
11/22/19
04/20/20
-09/17/20
02/14/21
07/14/21
12/11/21
05/10/22
10/07/22
03/06/23
08/03/23
12/31/23
Water Levels and Data over Time
White Mesa Mill -Well TW 4-19
Total or
Measuring Measured
Water Land Point Depth to Total Depth
Elevation Surface Elevation Length Of Date Of Water to Water Total Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5 629.53 5 631.39 1.86 126.86
5,581.88 08/23/02 49.51 47.65
5,582.14 09/11/02 49.25 47.39
5,582.06 10/23/02 49.33 47.47
5,582.07 11/22/02 49.32 47.46
5,582.16 12/03/02 49.23 47.37
5,582.28 01/09/03 49.11 47.25
5,582.29 02/21/03 49.10 47.24
5,582.74 03/26/03 48.65 46.79
5,582.82 04/02/03 48.57 46.71
5,548.47 05/01/03 82.92 81.06
5,564.76 06/09/03 66.63 64.77
5,562.53 07/07/03 68.86 67.00
5,564.10 08/04/03 67.29 65.43
5,566.01 08/30/04 65.38 63.52
5,555.16 09/16/04 76.23 74.37
5,549.80 10/11/04 81.59 79.73
5,546.04 11/16/04 85.35 83.49
5,547.34 12/22/04 84.05 82.19
5,548.77 01/18/05 82.62 80.76
5,551.18 02/28/05 80.21 78.35
5,556.81 03/15/05 74.58 72.72
5,562.63 04/26/05 68.76 66.90
5,573.42 05/24/05 57.97 56.11
5,552.94 07/29/05 78.45 76.59
5,554.00 09/12/05 77.39 75.53
5,555.98 12/07/05 75.41 73.55
5,552.00 03/08/06 79.39 77.53
5,545.74 06/13/06 85.65 83.79
5,544.06 07/18/06 87.33 85.47
5,548.81 11/07/06 82.58 80.72
5,543.59 02/27/07 87.80 85.94
5,544.55 05/02/07 86.84 84.98
5,558.97 08/15/07 72.42 70.56
5,559.73 10/10/07 71.66 69.8
5,569.26 03/26/08 62.13 60.27
5,535.47 06/25/08 95.92 94.06
5,541.41 08/26/08 89.98 88.12
5,558.45 10/14/08 72.94 71.08
5,536.90 03/03/09 94.49 92.63
5,547.76 06/24/09 83.63 81.77
5,561.48 09/10/09 69.91 68.05
5,548.14 12/11/09 83.25 81.39
5,570.58 03/11/10 60.81 58.95
Water Levels and Data over Time
White Mesa Mill -Well TW4-19
Total or
Measuring Measured
Water Land Point Depth to Total Depth
Elevation Surface Elevation Length Of Date Of Water to Water Total Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,629.53 5,631.39 1.86 126.86
5,561.35 05/11/10 70.04 68.18
5,535.26 09/29/10 96.13 94.27
5,568.40 12/21/10 62.99 61.13
5,550.36 02/28/11 81.03 79.17
5,570.41 06/21/11 60.98 59.12
5,567.84 09/20/11 63.55 61.69
5,571.32 12/21/11 60.07 58.21
5,572.40 03/27/12 58.99 57.13
5,572.39 06/28/12 59.00 57.14
5,571.40 09/27/12 59.99 58.13
5,568.21 12/28/12 63.18 61.32
5,572.51 03/28/13 58.88 57.02
5,566.00 06/27/13 65.39 63.53
5,568.37 09/27/13 63.02 61.16
5,564.55 12/20/13 66.84 64.98
5,565.11 03/27/14 66.28 64.42
5,561.49 06/25/14 69.90 68.04
5,562.67 09/25/14 68.72 66.86
5,562.99 12/17/14 68.40 66.54
5,567.99 03/26/15 63.40 61.54
5,562.79 06/22/15 68.60 66.74
5,568.16 09/30/15 63.23 61.37
5,567.51 12/02/15 63.88 62.02
5,566.38 03/30/16 65.01 63.15
5,5,66.91 06/30/16 64.48 62.62
5,567.38 09/29/16 64.01 62.15
5,567.41 12/21/16 63.98 62.12
5,566.87 03/30/17 64.52 62.66
5,566.76 06/27/17 64.63 62.77
5,565.19 09/28/17 66.20 64.34
5,565.79 11/30/17 65.60 63.74
5,563.79 03/28/18 67.60 65.74
5,564.58 06/22/18 66.81 64.95
5,562.56 09/24/18 68.83 66.97
5,555.78 12/18/18 75.61 73.75
5,547.86 03/25/19 83.53 81.67
5,557.99 06/24/19 73.40 71.54
5,554.26 08/12/19 77.13 75.27
5,561.87 11/18/19 69.52 67.66
5,561.71 02/10/20 69.68 67.82
5,563.21 05/04/20 68.18 66.32
5,559.19 09/21/20 72.20 70.34
5,554.95 12/28/20 76.44 74.58
Water Levels and Data over Time
White Mesa Mill -Well TW 4-19
Total or
Measuring Measured
Water Land Point Depth to Total Depth
Elevation Surface Elevation Length Of Date Of Water to Water Total Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,629.53 5,631.39 1.86 126.86
5,558.24 03/11/21 73.15 71.29
5,559.02 06/24/21 72.37 70.51
5,557.99 08/13/21 73.40 71.54
5,559.25 12/30/21 72.14 70.28
5,560.12 02/10/22 71.27 69.41
5,559.22 06/28/22 72.17 70.31
5,557.94 08/15/22 73.45 71.59
5,559.35 11/17/22 72.04 70.18
-0 0 \0 0
Depth Below Measuring Point (ft.)
00 0 -..J 0 °' 0 Ul 0 ~ 0
~----+----+-----+-----+-----+-----+ 06/08/01
11/05/01
04/04/02
09/01/02
01/29/03
06/28/03
11/25/03
04/23/04
09/20/04
02/17/05
07/17/05
12/14/05
05/13/06
10/10/06
03/09/07
08/06/07
-01/03/08
06/01/08
10/29/08
03/28/09
08/25/09
01/22/10
06/21/10
11/18/10
04/17/11
09/14/11
02/11/12
07/10/12
12/07/12
05/06/13
10/03/13
03/02/14
· 07/30/14
12/27/14
05/26/15
10/23/15
03/21/16
08/18/16
01/15/17
06/14/17
11/11/17
04/10/18
09/07/18
02/04/19
07/04/19
12/01/19
.. 04/29/20
09/26/20
· 02/23/21
· 07/23/21
12/20/21
-05/19/22
10/16/22
03/15/23
08/12/23 L-----------'----__,_ ___ __,_ ___ ___,__ ___ _.__ __ ___,_ 01/09/24
~ ~ ,&;:..
I i,,,,,,-
~
~ ~ '"1
0 ~ ~ ~
0 < ~ '"1
~ .... a ~ ---? a -a ~ --
Water Levels and Data over Time
White Mesa Mill -Well TW4-20
Total or
Measuring Measured
Water Land Point Depth to Total Depth Total
Elevation Surface Elevation Length Of Date Of Water to Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,628.52 5,629.53 1.01 105.9
5,565.70 07/29/05 63.83 62.82
5,546.53 08/30/05 83.00 81.99
5,540.29 09/12/05 89.24 88.23
5,541.17 12/07/05 88.36 87.35
5,540.33 03/08/06 89.20 88.19
5,530.43 06/13/06 99.10 98.09
5,569.13 07/18/06 60.40 59.39
5,547.95 11/07/06 81.58 80.57
5,549.25 02/27/07 80.28 79.27
5,550.58 05/02/07 78.95 77.94
5,563.60 08/14/07 65.93 64.92
5,555.85 10/10/07 73.68 72.67
5,569.10 03/26/08 60.43 59.42
5,560.00 06/25/08 69.53 68.52
5,539.64 08/26/08 89.89 88.88
5,539.51 10/14/08 90.02 89.01
5,553.00 03/03/09 76.53 75.52
5,534.18 06/24/09 95.35 94.34
5,558.39 09/10/09 71.14 70.13
5,560.99 12/11/09 68.54 67.53
5,564.09 03/11/10 65.44 64.43
5,564.22 05/11/10 65.31 64.30
5,560.33 09/29/10 69.20 68.19
5,561.35 12/21/10 68.18 67.17
5,560.18 02/28/11 69.35 68.34
5,576.23 06/21/11 53.30 52.29
5,548.50 09/20/11 81.03 80.02
5,558.58 12/21/11 70.95 69.94
5,567.73 03/27/12 61.80 60.79
5,567.77 06/28/12 61.76 60.75
5,569.58 09/27/12 59.95 58.94
5,572.58 12/28/12 56.95 55.94
5,571.52 03/28/13 58.01 57.00
5,569.93 06/27/13 59.60 58.59
5,568.53 09/27/13 61.00 59.99
5,559.44 12/20/13 70.09 69.08
5,562.17 03/27/14 67.36 66.35
5,558.98 06/25/14 70.55 69.54
5,561.03 09/25/14 68.50 67.49
5,559.39 12/17/14 70.14 69.13
5,565.65 03/26/15 63.88 62.87
5,568.25 06/22/15 61.28 60.27
Water Levels and Data over Time
White Mesa Mill -Well TW4-20
Total or
Measuring Measured
Water Land Point Depth to Total Depth Total
Elevation Surface Elevation Length Of Date Of Water to Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,628.52 5,629.53 1.01 105.9
5,566.78 09/30/15 62.75 61.74
5,565.43 12/02/15 64.10 63.09
5,565.87 03/30/16 63.66 62.65
5,564.42 06/30/16 65.11 64.10
5,565.43 09/29/16 64.10 63.09
5,564.93 12/21/16 64.60 63.59
5,564.27 03/30/17 65 .26 64.25
5,564.46 06/27/17 65.07 64.06
5,564.23 09/28/17 65.30 64.29
5,556.13 11/30/17 73.40 72.39
5,562.98 03/28/18 66.55 65.54
5,562.81 06/22/18 66.72 65.71
5,562.58 09/24/18 66.95 65 .94
5,558.49 12/17/18 71.04 70.03
5,553.96 03/25/19 75.57 74.56
5,555.22 06/24/19 74.31 73.30
5,556.08 08/12/19 73.45 72.44
5,549.40 11/18/19 80.13 79.12
5,550.65 02/10/20 78.88 77.87
5,559.63 05/04/20 69.90 68.89
......
0 0
\0 0
Depth Below Measuring Point (ft.)
00 0
-.)
0 O'I 0
Ul
0 ~ 0
07/29/05
12/26/05
05/25/06
10/22/06
03/21/07
08/18/07
01/15/08
06/13/08
11/10/08
04/09/09
09/06/09 1--3
02/03/10 ~ ......
I
07/03/10 N = 11/30/10 ~ 04/29/11 -~
09/26/11 "'1
0
02/23/12 ~ "Cl
07/22/12 ~
12/19/12 0 <
05/18/13 ~ "'1
10/15/13 1--3 ....
03/14/14 e ~
08/11/14 ---?
01/08/15 O"' -06/07/15 e "Cl
11/04/15 ,._,
04/02/16
08/30/16
01/27/17
06/26/17
11/23/17
04/22/18
09/19/18
02/16/19
07/16/19
12/13/19
05/11/20
10/08/20
03/07/21
Water Levels and Data over Time
White Mesa Mill -Well TW4-21
Total or
Measuring Measured Total
Water Land Point Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,638.20 5,639.35 1.15 118.8
5,582.98 07/29/05 56.37 55.22
5,583.43 08/30/05 55.92 54.77
5,581.87 09/12/05 57.48 56.33
5,580.50 12/07/05 58.85 57.70
5,583.64 03/08/06 55.71 54.56
5,580.55 06/13/06 58.80 57.65
5,578.95 07/18/06 60.40 59.25
5,578.47 11/07/06 60.88 59.73
5,579.53 02/27/07 59.82 58.67
5,578.07 05/02/07 61.28 60.13
5,583.41 08/15/07 55.94 54.79
5,583.45 10/10/07 55.90 54.75
5,586.47 03/26/08 52.88 51.73
5,579.16 06/24/08 60.19 59.04
5,579.92 08/26/08 59.43 58.28
5,577.37 10/14/08 61.98 60.83
5,578.00 03/10/09 61.35 60.20
5,580.14 06/24/09 59.21 58.06
5,578.72 09110/09 60.63 59.48
5,579.99 12/11/09 59.36 58.21
5,582.81 03/11/10 56.54 55.39
5,582.23 05/11/10 57.12 55.97
5,576.60 09/29/10 62.75 61.60
5,581.14 12/21/10 58.21 57.06
5,579.53 02/28/11 59.82 58.67
5,584.17 06/21/11 55.18 54.03
5,584.80 09/20/11 54.55 53.40
5,585.68 12/21/11 53.67 52.52
5,585.24 03/27/12 54.11 52.96
5,585.26 06/28/12 54.09 52.94
5,585.16 09/27/12 54.19 53.04
5,585.25 12/28/12 54.10 52.95
5,582.84 03/28/13 56.51 55.36
5,581.79 06/27/13 57.56 56.41
5,580.89 09/27/13 58.46 57.31
5,577.45 12/20/13 61.90 60.75
5,576.01 03/27/14 63.34 62.19
5,574.08 06/25/14 65.27 64.12
5,573.20 09/25/14 66.15 65.00
5,576.13 12/17/14 63.22 62.07
5,578.19 03/26/15 61.16 60.01
5,574.85 06/22/15 64.50 63.35
Water Levels and Data over Time
White Mesa Mill -Well TW4-21
Total or
Measuring Measured Total
Water Land Point Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,638.20 5,639.35 1.15 118.8
5,573.05 09/30/15 66.30 65.15
5,569.88 12/02/15 69.47 68.32
5,571.81 03/30/16 67.54 66.39
5,571.86 06/30/16 67.49 66.34
5,570.82 09/29/16 68.53 67.38
5,570.45 12/21/16 68.90 67.75
5,574.53 03/30/17 64.82 63.67
5,569.91 06/27/17 69.44 68.29
5,569.49 09/28/17 69.86 68.71
5,566.87 11/30/17 72.48 71.33
5,568.10 03/28/18 71.25 70.10
5,568.17 06/22/18 71.18 70.03
5,567.50 09/24/18 71.85 70.70
5,554.80 12/17/18 84.55 83.40
5,560.92 03/25/19 78.43 77.28
5,561.49 06/24/19 77.86 76.71
5,564.17 08/12/19 75.18 74.03
5,555.91 11/18/19 83.44 82.29
5,561.05 02/10/20 78.30 77.15
5,567.23 05/04/20 72.12 70.97
5,566.29 09/21/20 73.06 71.91
5,562.48 12/28/20 76.87 75.72
5,568.64 03/11/21 70.71 69.56
5,564.50 06/24/21 74.85 73.70
5,567.02 08/13/21 72.33 71.18
5,563.30 12/30/21 76.05 74.90
5,567.61 02/10/22 71.74 70.59
5,567.20 06/28/22 72.15 71.00
5,563.51 08/15/22 75.84 74.69
5,567.10 11/17/22 72.25 71.10
\0 0 00 0 -...J 0
Depth Below Measuring Point (ft.)
O'I 0
Vo
0
.i:,. (.>)
0 0 N -0 0 0
07/29/05
12/26/05
05/25/06
10/22/06
03/21/07
08/18/07
01/15/08
06/13/08
11/10/08
04/09/09
09/06/09
02/03/10
07/03/10
11/30/10
04/29/11
09/26/11
02/23/12
07/22/12
12/19/12
05/18/13
10/15/13
03/14/14
08/11/14
01/08/15
06/07/15
11/04/15
04/02/16
08/30/16
01/27/17
06/26/17
11/23/17
04/22/18
09/19/18
02/16/19
07/16/19
12/13/19
· 05/11/20
10/08/20
03/07/21
08/04/21
01/01/22
05/31/22
10/28/22
03/27/23
08/24/23
01/21/24
~ ! I N ~
~ -~ ...
~ ~ "'0 ~
0 ~ ~ ...
~ ...
9 ~ -?
O" I _,
Water Levels and Data over Time
White Mesa Mill -Well TW4-22
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,627.83 5,629.00 1.17 114.7
5,571.89 07/29/05 57.11 55.94
5,572.20 08/30/05 56.80 55.63
5,572.08 09/12/05 56.92 55.75
5,571.61 12/07/05 57.39 56.22
5,571.85 03/08/06 57.15 55.98
5,571.62 06/13/06 57.38 56.21
5,571.42 07/18/06 57.58 56.41
5,571.02 11/07/06 57 .98 56.81
5571.24 02/27/07 57.76 56.59
5,570.75 06/29/07 58.25 57.08
5,571.82 08/14/07 57.18 56.01
5,571.99 10/10/07 57.01 55.84
5,573.05 03/26/08 55.95 54.78
5,573.04 06/24/08 55.96 54.79
5,573.04 08/26/08 55.96 54.79
5,573.02 10/14/08 55.98 54.81
5,573.19 03/10/09 55.81 54.64
5,573.32 06/24/09 55.68 54.51
5,573.17 09/10/09 55.83 54.66
5,573.52 12/11/09 55.48 54.31
5,573.88 03/11/10 55.12 53.95
5,574.29 05/11/10 54.71 53.54
5,574.88 09/29/10 54.12 52.95
5,574.44 12/21/10 54.56 53.39
5,574.49 02/28/11 54.51 53.34
5,574.97 06/21/11 54.03 52.86
5,575.06 09/20/11 53.94 52.77
5,575.69 12/21/11 53.31 52.14
5,575.61 03/27/12 53.39 52.22
5,575.62 06/28/12 53.38 52.21
5,575.90 09/27/12 53.10 51.93
5,575.59 12/28/12 53.41 52.24
5,573.50 03/28/13 55.50 54.33
5,572.45 06/27/13 56.55 55.38
5,572.25 09/27/13 56.75 55.58
5,569.93 12/20/13 59.07 57.90
5,569.36 03/27/14 59.64 58.47
5,569.02 06/25/14 59.98 58.81
5,570.00 09/25/14 59.00 57.83
5,568.60 12/17/14 60.40 59.23
5,557.00 03/26/15 72.00 70.83
5,570.93 06/22/15 58.07 56.90
Water Levels and Data over Time
White Mesa Mill-Well TW4-22
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,627.83 5,629.00 1.17 114.7
5,571.24 09/30/15 57.76 56.59
5,568.23 12/02/15 60.77 59.60
5,570.28 03/30/16 58.72 57.55
5,570.75 06/30/16 58.25 57 .08
5,544.60 09/29/16 84.40 83 .23
5,565.11 12/21/16 63.89 62.72
5,567.99 03/30/17 61.01 59.84
5,569.17 06/27/17 59.83 58.66
5,569.37 09/28/17 59.63 58.46
5,566.48 11/30/17 62.52 61.35
5,568.30 03/28/18 60.70 59.53
5,568.42 06/22/18 60.58 59.41
5,567.98 09/24/18 61.02 59.85
5,553.65 12/17/18 75.35 74.18
5,550.09 03/25/19 78.91 77.74
5,540.65 06/24/19 88.35 87.18
5,557.09 08/12/19 71.91 70.74
5,544.97 11/18/19 84.03 82.86
5,558.05 02/10/20 70.95 69 .78
5,558.77 05/04/20 70.23 69 .06
5,559.12 09/21/20 69.88 68 .71
5,564.70 12/28/20 64.30 63.13
5,560.19 03/11/21 68.81 67.64
5,560.12 06/24/21 68.88 67.71
5,560.80 08/13/21 68.20 67.03
5,562.87 12/30/21 66.13 64.96
5,559.35 02/10/22 69.65 68.48
5,559.49 06/28/22 69.51 68.34
5,548.25 08/15/22 80.75 79.58
5,558.30 11/17/22 70.70 69.53
-0 0 I.O 0 00 0
Depth Below Measuring Point (ft.)
--.J 0 °' 0 Vl 0
.j:::,..
0
l;.)
0 N 0 -0 0
07/29/05
12/26/05
05/25/06
10/22/06
03/21/07
08/18/07
01/15/08
06/13/08
11/10/08
-04/09/09
09/06/09
02/03/10
07/03/10 ~
11/30/10 ~
04/29/11 ,I:;;.. I
-09/26/11 N N
02/23/12 ~ 07/22/12 ~
12/19/12 ~ "1
05/18/13 ~
10/15/13 ~ "CS ~ 03/14/14 =-
08/11/14 0
01/08/15 ~ ~
-06/07/15 "1
~
-11/04/15 j,,,,Oo
9 04/02/16 ~
08/30/16 ,-..._
? 01/27/17 O""
06/26/17 -9 -11/23/17 "CS --04/22/18
09/19/18
02/16/19
-07/16/19
12/13/19
05/11/20
-10/08/20
03/07/21
-08/04/21
01/01/22
05/31/22
10/28/22
03/27/23
-08/24/23
01/21/24
Water Levels and Data over Time
White Mesa Mill -Well TW4-23
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,605.77 5,607.37 1.60 116.4
5,538.89 09/13/07 68.48 66.88
5,538.80 10/10/07 68.57 66.97
5,539.25 11/30/07 68.12 66.52
5,539.49 12/11/07 67.88 66.28
5,539.19 01/08/08 68.18 66.58
5,539.44 02/18/08 67.93 66.33
5,539.54 03/26/08 67.83 66.23
5,539.71 04/23/08 67.66 66.06
5539.48 05/30/08 67.89 66.29
5,539.53 06/24/08 67.84 66.24
5,539.44 07/16/08 67.93 66.33
5,539.68 08/26/08 67.69 66.09
5,541.18 09/10/08 66.19 64.59
5,539.57 10/14/08 67.80 66.20
5,539.29 11/26/08 68.08 66.48
5,539.55 12/29/08 67.82 66.22
5,540.15 01/26/09 67.22 65.62
5,539.74 02/24/09 67.63 66.03
5,539.86 03/06/09 67.51 65.91
5,539.72 04/07/09 67.65 66.05
5,539.84 05/29/09 67.53 65.93
5,540.12 06/30/09 67.25 65.65
5,540.12 07/31/09 67.25 65.65
5,540.27 08/31/09 67.10 65.50
5,540.13 09/10/09 67.24 65.64
5,540.64 12/11/09 66.73 65.13
5,541.15 03/11/10 66.22 64.62
5,541.61 05/11/10 65.76 64.16
5,541.47 09/29/10 65.90 64.30
5,541.54 12/21/10 65.83 64.23
5,541.54 02/28/11 65.83 64.23
5,541.98 06/21/11 65.39 63.79
5,541.90 09/20/11 65.47 63.87
5,542.58 12/21/11 64.79 63.19
5,542.59 03/27/12 64.78 63.18
5,542.61 06/28/12 64.76 63.16
5,542.92 09/27/12 64.45 62.85
5,542.61 12/28/12 64.76 63.16
5,543.48 03/28/13 63.89 62.29
5,543.23 06/27/13 64.14 62.54
5,543.12 09/27/13 64.25 62.65
5,542.96 12/20/13 64.41 62.81
Water Levels and Data over Time
White Mesa Mill -Well TW4-23
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
{WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,605.77 5,607.37 1.60 116.4
5,542.35 03/27/14 65.02 63.42
5,541.42 06/25/14 65.95 64.35
5,540.65 09/25/14 66.72 65.12
5,540.34 12/17/14 67 .03 65.43
5,539.47 03/26/15 67.90 66.30
5,539.22 06/22/15 68 .15 66.55
5,538.82 09/30/15 68.55 66.95
5,538.28 12/02/15 69.09 67.49
5,538.29 03/30/16 69.08 67.48
5,537.60 06/30/16 69.77 68.17
5,537.07 09/29/16 70.30 68.70
5,536.86 12/21/16 70.51 68.91
5,536.91 03/30/17 70.46 68.86
5,536.49 06/27/17 70.88 69.28
5,536.18 09/28/17 71.19 69.59
5,535.72 11/30/17 71.65 70.05
5,535.62 03/28/18 71.75 70.15
5,535.34 06/22/18 72.03 70.43
5,534.93 09/25/18 72.44 70.84
5,534.64 12/17/18 72.73 71.13
5,534.23 03/25/19 73.14 71.54
5,534.22 06/24/19 73.15 71.55
5,534.01 08/12/19 73.36 71.76
5,533.51 11/18/19 73.86 72.26
5,533.26 02/10/20 74.11 72.51
5,532.76 05/04/20 74.61 73.01
5,532.33 09/22/20 75.04 73.44
5,532.30 12/30/20 75.07 73.47
5,532.32 03/11/21 75.05 73.45
5,531.71 06/24/21 75.66 74.06
5,531.63 08/13/21 75.74 74.14
5,531.77 12/30/21 75.60 74.00
5,531.17 02/10/22 76.20 74.60
5,531.73 06/28/22 75.64 74.04
5530.84 08/15/22 76.53 74.93
5530.58 11/17/22 76.79 75.19
\0 0 00 0
'
-..J 0
◄
'
►
►
◄
◄
J ..
• • ..
• '
1
• •
◄ •
..
Depth Below Measuring Point (ft.)
•
~
•
•
' ••
..
◄ • • •• •
◄ • ◄► ••
◄
°' 0
'
u-,
0 ~ v)
0 N 0
'
-0 0
-
-
...
...
~
~
~
L.
-
L.
-
-
09/13/07
02/10/08
07/09/08
12/06/08
05/05/09
10/02/09
03/01/10
07/29/10
12/26/10
05/25/11
10/22/11 ~ 03/20/12 ~
08/17/12 ,&;;;..
I
01/14/13 N ~
06/13/13 ~ 11/10/13 -~
04/09/14 "1
~
09/06/14 ~ "Cl
02/03/15 -=-
07/03/15 0 ~ 11/30/15 ~ "1
04/28/16 ~ ...
09/25/16 a ~ 02/22/17 ---07/22/17 ?
C" 12/19/17 -a 05/18/18 "Cl --10/15/18
03/14/19
08/11/19
01/08/20
06/06/20
11/03/20
04/02/21
08/30/21
01/27/22
06/26/22
11/23/22
04/22/23
09/19/23
Water Levels and Data over Time
White Mesa Mill -Well TW4-24
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,625.70 5,627.83 2.13 114.8
5,570.61 09/13/07 57.22 55.09
5,570.53 10/10/07 57.30 55.17
5,571.16 11/30/07 56.67 54.54
5,571.30 12/11/07 56.53 54.40
5,571.03 01/08/08 56.80 54.67
5,571.22 02/18/08 56.61 54.48
5,571.43 03/26/08 56.40 54.27
5,571.68 04/23/08 56.15 54.02
5571.52 05/30/08 56.31 54.18
5,571.34 06/24/08 56.49 54.36
5,571.28 07/16/08 56.55 54.42
5,571.34 08/26/08 56.49 54.36
5,571.23 09/10/08 56.60 54.47
5,571.12 10/14/08 56.71 54.58
5,570.95 11/26/08 56.88 54.75
5,570.92 12/29/08 56.91 54.78
5,571.65 01/26/09 56.18 54.05
5,571.31 02/24/09 56.52 54.39
5,571.37 03/06/09 56.46 54.33
5,571.21 04/07/09 56.62 54.49
5,571.23 05/29/09 56.60 54.47
5,571.42 06/30/09 56.41 54.28
5,571.38 07/31/09 56.45 54.32
5,571.48 08/31/09 56.35 54.22
5,571.28 09/10/09 56.55 54.42
5,571.64 12/11/09 56.19 54.06
5,571.86 03/11/10 55.97 53.84
5,571.91 05/11/10 55.92 53.79
5,572.18 09/29/10 55.65 53.52
5,571.86 12/21/10 55.97 53.84
5,571.78 02/28/11 56.05 53.92
5,572.40 06/21/11 55.43 53.30
5,572.19 09/20/11 55.64 53.51
5,573.02 12/21/11 54.81 52.68
5,573.03 03/27/12 54.80 52.67
5,573.02 06/28/12 54.81 52.68
5,573.13 09/27/12 54.70 52.57
5,573.05 12/28/12 54.78 52.65
5,566.53 03/28/13 61.30 59.17
5,564.63 06/27/13 63.20 61.07
5,570.01 09/27/13 57.82 55 .69
5,566.85 12/20/13 60.98 58.85
5,562.33 03/27/14 65.50 63.37
Water Levels and Data over Time
White Mesa Mill -Well TW4-24
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,625.70 5,627.83 2.13 114.8
5,563.43 06/25/14 64.40 62.27
5,563.43 09/25/14 64.40 62.27
5,560.97 12/17/14 66.86 64.73
5,561.95 03/26/15 65.88 63.75
5,565.38 06/22/15 62.45 60.32
5,562.61 09/30/15 65.22 63.09
5,560.91 12/02/15 66.92 64.79
5,563.69 03/30/16 64.14 62.01
5,565.64 06/30/16 62.19 60.06
5,565.35 09/29/16 62.48 60.35
5,563.33 12/21/16 64.50 62.37
5,565.27 03/30/17 62.56 60.43
5,565.86 06/27/17 61.97 59.84
5,565.21 09/28/17 62.62 60.49
5,559.24 11/30/17 68.59 66.46
5,564.78 03/28/18 63.05 60.92
5,564.83 06/22/18 63.00 60.87
5,565.47 09/24/18 62.36 60.23
5,549.72 12/17/18 78.11 75.98
5,559.52 03/25/19 68.31 66.18
5,546.68 06/24/19 81.15 79.02
5,549.54 08/12/19 78.29 76.16
5,554.44 11/18/19 73.39 71.26
5,563.62 02/10/20 64.21 62.08
5,558.32 05/04/20 69.51 67.38
5,558.88 09/21/20 68.95 66.82
5,556.76 12/28/20 71.07 68.94
5,557.89 03/11/21 69.94 67.81
5,561.51 06/24/21 66.32 64.19
5,559.12 08/13/21 68.71 66.58
5,560.64 12/30/21 67.19 65.06
5,556.44 02/10/22 71.39 69.26
5,558.22 06/28/22 69.61 67.48
5,558.62 08/15/22 69.21 67.08
5,558.14 11/17/22 69.69 67.56
'° 0 0
00 0 0
-.J 0 0
Depth Below Measuring Point (ft.)
GI 0
0
VI
0
0
~
0
w 0 0
N ......
0 0 0 0 0 0
09/13/07
02/10/08
07/09/08
12/06/08
05/05/09
10/02/09
03/01/10
07/29/10
12/26/10
05/25/11
10/22/11 ""'3 -03/20/12 ~
-08/17/12 ,I;;,,,.
I
01/14/13 N ,I;;,,,.
06/13/13 ~ 11/10/13 """' ~
04/09/14 i,,;
0 09/06/14 ~ ~
02/03/15 ;.
07/03/15 0 < 11/30/15 ~ i,,;
-04/28/16 ""'3 ...
-09/25/16 a ~ 02/22/17 --07/22/17 ?
"a' 12/19/17 -a 05/18/18 ~ --10/15/18
03/14/19
08/11/19
01/08/20
06/06/20
11/03/20
04/02/21
08/30/21
01/27/22
06/26/22
11/23/22
04/22/23
09/19/23
Water Levels and Data over Time
White Mesa Mill -Well TW4-25
Total or
Water Measuring Measured Total
Elevation Land Point Depth to Depth to Total
(WL) Surface Elevation Length Of Date Of Water Water Depth Of
(LSD) (MP) Riser (L) M ·t . (bl MP) (blw.LSD) Well om ormg w.
5,642.82 5,644.91 2.09 136.7
5,601.86 09/13/07 43.05 40.96
5,601.89 10/10/07 43.02 40.93
5,602.57 11/30/07 42.34 40.25
5,602.82 12/11/07 42.09 40.00
5,601.94 01/08/08 42.97 40.88
5,599.13 02/18/08 45.78 43.69
5,597.11 03/26/08 47.80 45.71
5,595.51 04/23/08 49.40 47.31
5,594.42 05/30/08 50.49 48.40
5,594.26 06/24/08 50.65 48.56
5,586.67 07/16/08 58.24 56.15
5,594.17 08/26/08 50.74 48.65
5,594.23 09/10/08 50.68 48.59
5,594.12 10/14/08 50.79 48.70
5,594.06 11/26/08 50.85 48.76
5,594.87 12/29/08 50.04 47.95
5,595.89 01/26/09 49.02 46.93
5,596.27 02/24/09 48.64 46.55
5,596.47 03/06/09 48.44 46.35
5,596.74 04/07/09 48.17 46.08
5,597.55 05/29/09 47.36 45.27
5,598.11 06/30/09 46.80 44.71
5,598.22 07/31/09 46.69 44.60
5,598.52 08/31/09 46.39 44.30
5,598.49 09/10/09 46.42 44.33
5,599.48 12/11/09 45.43 43.34
5,599.75 03/11/10 45.16 43.07
5,599.63 05/11/10 45.28 43.19
5,598.68 09/29/10 46.23 44.14
5,598.66 12/21/10 46.25 44.16
5,598.18 02/28/11 46.73 44.64
5,598.61 06/21/11 46.30 44.21
5,598.08 09/20/11 46.83 44.74
5,598.23 12/21/11 46.68 44.59
5,597.41 03/27/12 47.50 45.41
5,597.41 06/28/12 47.50 45.41
5,595.60 09/27/12 49.31 47.22
5,597.41 12/28/12 47.50 45.41
5,597.43 03/28/13 47.48 45.39
5,587.61 06/27/13 57.30 55.21
5,585.91 09/27/13 59.00 56.91
5,561.00 12/20/13 83.91 81.82
Water Levels and Data over Time
White Mesa Mill -Well TW4-25
Total or
Water Measuring Measured Total
Elevation Land Point Depth to Depth to Total
(WL) Surface Elevation Length Of Date Of Water Water Depth Of
(LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,642.82 5,644.91 2.09 136.7
5,584.79 03/27/14 60.12 58.03
5,582.44 06/25/14 62.47 60.38
5,583.95 09/25/14 60.96 58.87
5,581.13 12/17/14 63.78 61.69
5,587.40 03/26/15 57.51 55.42
5,581.91 06/22/15 63.00 60.91
5,581.40 09/30/15 63.51 61.42
5,578.42 12/02/15 66.49 64.40
5,579.42 03/30/16 65.49 63.40
5,579.25 06/30/16 65.66 63.57
5,579.68 09/29/16 65.23 63.14
5,577.73 12/21/16 67.18 65.09
5,584.44 03/30/17 60.47 58.38
5,580.19 06/27/17 64.72 62.63
5,573.63 09/28/17 71.28 69.19
5,577.88 11/30/17 67.03 64.94
5,543.71 03/28/18 101.20 99.11
5,575.26 06/22/18 69.65 67.56
5,578.78 09/24/18 66.13 64.04
5,567.86 12/17/18 77.05 74.96
5,572.46 03/25/19 72.45 70.36
5,571.58 06/24/19 73.33 71.24
5,572.15 08/12/19 72.76 70.67
5,572.66 11/18/19 72.25 70.16
5,572.77 02/10/20 72.14 70.05
5,572.46 05/04/20 72.45 70.36
5,575.17 09/21/20 69.74 67.65
5,574.42 12/28/20 70.49 68.40
5,574.90 03/11/21 70.01 67.92
5,575.01 06/24/21 69.90 67.81
5,575.66 08/13/21 69.25 67.16
5,578.11 12/30/21 66.80 64.71
5,578.07 02/10/22 66.84 64.75
5,574.87 06/28/22 70.04 67.95
5,574.46 08/15/22 70.45 68.36
5,574.96 11/17/22 69.95 67.86
--N 0 8
Depth Below Measuring Point (ft.)
00 0 0\ 0
.j:::,.
0 N 0 0
'-------l------+--------~-----;------;---' 09/13/07
02/10/08
07/09/08
12/06/08
05/05109
10/02/09
03/01/10
07/29/10
12/26/10
05/25/11
10/22/11
03/20/12
08/17/12
01/14/13
06/13/13
11/10/13
-04/09/14
09/06/14
02/03/15
07/03/15
11/30/15
04/28/16
09/25/16
02/22/17
07/22/17
12/19/17
05/18/18
10/15/18
03/14/19
08/11/19
01/08/20
06/06/20
-11/03/20
-04/02/21
-08/30/21
-01/27/22
-06/26/22
-11/23/22
-04/22/23
'-----~-----'----~----'-----'----__._09/19/23
~ i
I N Ul
~ ;-
""1
~ ('t)
"Cl ;.
0 ~ ""1
~ ..... a
('t) --? a -a "Cl '-'
Water Levels and Data over Time
White Mesa Mill -Well TW4-26
Total or
Measuring Measured Total
Water Land Point Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,599.98 5,601.68 1.70 87.7
5,536.90 06/14/10 64.78 63.08
5,536.95 09/29/10 64.73 63.03
5,537.17 12/21/10 64.51 62.81
5,537.16 02/28/11 64.52 62.82
5,537.57 06/21/11 64.11 62.41
5,537.59 09/20/11 64.09 62.39
5,538.16 12/21/11 63.52 61.82
5,538.18 03/27/12 63.50 61.80
5538.23 06/28/12 63.45 61.75
5,538.57 09/27/12 63.11 61.41
5,538.20 12/28/12 63.48 61.78
5,539.13 03/28/13 62.55 60.85
5,539.00 06/27/13 62.68 60.98
5,538.94 09/27/13 62.74 61.04
5,538.97 12/20/13 62.71 61.01
5,538.53 03/27/14 63.15 61.45
5,537.85 06/25/14 63.83 62.13
5,537.33 09/25/14 64.35 62.65
5,537.14 12/17/14 64.54 62.84
5,536.43 03/26/15 65.25 63.55
5,536.16 06/22/15 65.52 63.82
5,535.76 09/30/15 65 .92 64.22
5,535.23 12/02/15 66.45 64.75
5,535.15 03/30/16 66.53 64.83
5,534.61 06/30/16 67.07 65.37
5,534.12 09/29/16 67.56 65.86
5,533.96 12/21/16 67 .72 66.02
5,533.97 03/30/17 67.71 66.01
5,533.66 06/27/17 68.02 66.32
5,533.43 09/28/17 68.25 66.55
5,533.39 11/30/17 68.29 66.59
5,532.99 03/28/18 68.69 66.99
5,532.74 06/22/18 68.94 67.24
5,532.32 09/25/18 69.36 67.66
5,532.04 12/17/18 69.64 67.94
5,531.48 03/25/19 70.20 68.50
5,531.20 06/24/19 70.48 68.78
5,530.96 08/12/19 70.72 69.02
5,530.14 11/18/19 71.54 69.84
5,529.73 02/10/20 71.95 70.25
5,529.08 05/04/20 72.60 70.90
5,528.48 09/22/20 73.20 71.50
5,528.42 12/30/20 73.26 71.56
Water Levels and Data over Time
White Mesa Mill -Well TW4-26
Total or
Measuring Measured Total
Water Land Point Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,599.98 5,601.68 1.70 87.7
5,528.39 03/11/21 73.29 71.59
5,527.76 06/24/21 73.92 72.22
5,527.73 08/13/21 73.95 72.25
5,527.80 12/30/21 73.88 72.18
5,527.26 02/10/22 74.42 72.72
5,527.73 06/28/22 73.95 72.25
5,526.86 08/15/22 74.82 73:12
5,526.62 11/17/22 75.06 73.36
00 0 0 0
◄
--.J 0 0 0
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j
' ·• •
•
•
·•
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• •
,
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•
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Depth Below Measuring Point (ft.)
°' 0 0 0
'
Ul 0 0 0
.i:,.. 0
0 0
'
w 0
0 0
N 0 0 0
-0 0 0
'
0 0 0
...
-
-
c..
C.
c..
-
I-
-
-
-
-
-
-
08/25/09
01/22/10
06/21/10
11/18/10
04/17/11
09/14/11
02/11/12
07/10/12
12/07/12
05/06/13 ~
10/03/13 ~ ,i;...
I
03/02/14 N 0-..
07/30/14 ~
12/27/14 f'"lo. ~ ~
05/26/15 0 ~
10/23/15 "'Cl f'"lo.
03/21/16 =-0
08/18/16 < ~ ~
01/15/17 ~ ....
06/14/17 9 ~
11/11/17 ---?
04/10/18 O" -09/07/18 9 "'Cl .._,
02/04/19
07/04/19
12/01/19
04/29/20
09/26/20
02/23/21
07/23/21
12/20/21
05/19/22
10/16/22
03/15/23
08/12/23
Water Levels and Data over Time
White Mesa Mill -Well TW4-27
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,606.19 5,607.94 1.75 95 .75
5,517.78 12/21/11 90.16 88.41
5,524.84 03/27/12 83.10 81.35
5,524.93 06/28/12 83.01 81.26
5,525.59 09/27/12 82.35 80.60
5,524.86 12/28/1 2 83 .08 81.33
5,526.37 03/28/13 81.57 79.82
5,526.29 06/27/13 81.65 79.90
5,527.04 09/27/13 80.90 79.15
5,527.14 12/20/13 80.80 79.05
5,527.55 03/27/14 80.39 78.64
5,527.43 06/25/14 80.51 78.76
5,527.48 09/25/14 80.46 78.71
5,527.81 12/17/14 80.13 78.38
5,527.71 03/26/15 80.23 78.48
5,527.86 06/22/15 80.08 78.33
5,528.13 09/30/15 79.81 78.06
5,527.92 12/02/15 80.02 78.27
5,528.59 03/30/16 79.35 77.60
5,528.34 06/30/16 79.60 77.85
5,528.32 09/29/16 79.62 77.87
5,528.44 12/21/16 79.50 77.75
5,528.85 03/30/17 79.09 77.34
5,528.81 06/27/17 79.13 77.38
5,528.84 09/28/17 79.10 77.35
5,528.85 11/29/17 79.09 77.34
5,529.14 03/28/18 78.80 77.05
5,529.06 06/21/18 78.88 77 .13
5,529.18 09/25/18 78.76 77.01
5,529.09 12/17/18 78.85 77.10
5,528.96 03/25/19 78.98 77.23
5,529.20 06/24/19 78 .74 76.99
5,529.24 08/12/19 78.70 76.95
5,529.12 11/18/19 78.82 77.07
5,529.29 02/10/20 78.65 76.90
5,528.97 05/04/20 78.97 77.22
5,528.89 09/22/20 79.05 77.30
5,529.12 12/30/20 78.82 77.07
5,529.21 03/11/21 78.73 76.98
5,528.90 06/24/21 79.04 77.29
5,528.76 08/13/21 79.18 77.43
5,529.06 12/30/21 78.88 77.13
5,528.79 02/10/22 79.15 77.40
5,528.85 06/28/22 79.09 77.34
5,528.69 08/15/22 79.25 77.50
5,528.49 11/17/22 79.45 77.70
lD N C)
0
lD 0 C)
0
Depth Below Measuring Point (ft.)
00 00 C)
0
00 en
C)
0
00 .i::,
C)
0
00 N
C)
0
00 0
C)
0
-.J 00
C)
0
04/17/11
09/14/11
02/11/12
07/10/12
12/07/12
05/06/13
10/03/13
03/02/14
07/30/14
12/27/14 ~
05/26/15 ~ ,&;;.,
10/23/15 I N ~
03/21/16 ~
08/18/16 -~ ""S
01/15/17 0 ~
06/14/17 "Cl -=-11/11/17 0 <
04/10/18 ~ ""S
09/07/18 ~ -· a
02/04/19 ~ ---07/04/19 ?
O"" -12/01/19 a "Cl
04/29/20 --
09/26/20
02/23/21
07/23/21
12/20/21
05/19/22
10/16/22
03/15/23
08/12/23
Water Levels and Data over Time
White Mesa Mill -Well TW4-28
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,613.52 5,617.00 3.48 108.48
5,580.69 03/28/13 36.31 32.83
5,580.30 06/27/13 36.70 33.22
5,580.35 09/27/13 36.65 33.17
5,580.25 12/20/13 36.75 33.27
5,579.83 03/27/14 37.17 33.69
5,579.21 06/25/14 37.79 34.31
5,578.84 09/25/14 38.16 34.68
5,578.72 12/17/14 38.28 34.80
5,578.11 03/26/15 38.89 35.41
5,577.83 06/22/15 39.17 35.69
5,577.56 09/30/15 39.44 35.96
5,577.27 12/02/15 39.73 36.25
5,577.25 03/30/16 39.75 36.27
5,576.75 06/30/16 40.25 36.77
5,576.36 09/29/16 40.64 37.16
5,576.13 12/21/16 40.87 37.39
5,575.92 03/30/17 41.08 37.60
5,575.50 06/27/17 41.50 38.02
5,575.08 09/28/17 41.92 38.44
5,574.80 11/29/17 42.20 38.72
5,574.36 03/28/18 42.64 39.16
5,573.92 06/22/18 43.08 39.60
5,572.37 09/25/18 44.63 41.15
5,571.74 12/17/18 45.26 41.78
5,570.65 03/25/19 46.35 42.87
5,570.60 06/24/19 46.40 42.92
5,570.24 08/12/19 46.76 43.28
5,569.87 11/18/19 47.13 43.65
5,569.89 02/10/20 47.11 43.63
5,569.01 05/04/20 47.99 44.51
5,568.41 09/22/20 48.59 45.11
5,568.29 12/30/20 48.71 45.23
5,568.32 03/11/21 48.68 45.20
5,567.79 06/24/21 49.21 45.73
5,567.64 08/13/21 49.36 45.88
5,567.89 12/30/21 49.11 45.63
5,567.24 02/10/22 49.76 46.28
5,567.75 06/28/22 49.25 45.77
5,567.73 08/15/22 49.27 45 .79
5,567.42 11/17/22 49.58 46.10
0\ 0 0 0
V, 0
8
◄
•
► •
◄
l
Depth Below Measuring Point (ft.)
.j:::,. W N 0 0 0 o o o 0 0 0
I
•►
◄
•• ·•
◄
•
1
I •►
•
I •
◄ ~
►
◄•
◄•
-0
8
0
0 0
-
-
07/10/12
12/07/12
05/06/13
10/03/13
03/02/14
07/30/14
12/27/14
05/26/15
10/23/15
03/21/16
08/18/16
01/15/17
06/14/17
11/11/17
04/10/18
09/07/18
02/04/19
07/04/19
12/01/19
04/29/20
09/26/20
02/23/21
07/23/21
12/20/21
05/19/22
10/16/22
03/15/23
08/12/23
~ ~ ,&;;..
I N QC)
~ l""I'-~ "1
t:,
~ "0 l""I'-=-0 -id ~ "1
~ ...
9 ~ ---?
~ -9 "CS '-'
Water Levels and Data over Time
White Mesa Mill -Well TW4-29
Total or
Measuring Measured
Water Land Point Depth to Total Depth Total
Elevation Surface Elevation Length Of Date Of Water to Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,602.56 5,606.04 3.48 94.48
5,533.98 03/28/13 72.06 68.58
5,533.84 06/27/13 72.20 68.72
5,534.27 09/27/13 71.77 68.29
5,534.43 12/20/13 71.61 68.13
5,534.32 03/27/14 71.72 68.24
5,533.85 06/25/14 72.19 68.71
5,533.53 09/25/14 72.51 69.03
5,533.60 12/17/14 72.44 68.96
5,533.04 03/26/15 73.00 69.52
5,532.93 06/22/15 73.11 69.63
5,532.79 09/30/15 73.25 69.77
5,532.34 12/02/15 73.70 70.22
5,532.54 03/30/16 73.50 70.02
5,532.01 06/30/16 74.03 70.55
5,531.58 09/29/16 74.46 70.98
5,531.49 12/21/16 74.55 71.07
5,531.60 03/30/17 74.44 70.96
5,531.24 06/27/17 74.80 71.32
5,530.95 09/28/17 75.09 71.61
5,530.83 11/29/17 75.21 71.73
5,530.74 03/28/18 75.30 71.82
5,530.54 06/21/18 75.50 72.02
5,530.28 09/25/18 75.76 72.28
5,530.11 12/17/18 75.93 72.45
5,527.99 03/25/19 78.05 74.57
5,529.77 06/24/19 76.27 72.79
5,529.64 08/12/19 76.40 72.92
5,529.23 11/18/19 76.81 73.33
5,529.10 02/10/20 76.94 73.46
5,528.51 05/04/20 77.53 74.05
5,528.21 09/22/20 77.83 74.35
5,528.13 12/30/20 77.91 74.43
5,528.13 03/11/21 77.91 74.43
5,527.67 06/24/21 78.37 74.89
5,527.56 08/13/21 78.48 75.00
5,527.84 12/30/21 78.20 74.72
5,527.28 02/10/22 78.76 75.28
5,527.66 06/28/22 78.38 74.90
5,526.89 08/15/22 79.15 75.67
5,526.68 11/17/22 79.36 75.88
00 0
8
--..l \0
0 0
Depth Below Measuring Point (ft.)
--..l --..l --..l --..l --..l 00 --..l O"I VI .j::. o o o o o 0 0 0 0 0
--..l t.,.)
0 0
--..l N 0 0
--..l -0 0
-07/10/12
-12/07/12
-05/06/13
10/03/13
03/02/14
07/30/14
• 12/27/14
05/26/15 ~
10/23/15 ~ ,I;;,;,. I 03/21/16 N '-0
08/18/16 ~
"""' 01/15/17 ('ti
"'1
06/14/17 0 ('ti
"Cl
11/11/17 ~
04/10/18 0 < ('ti
09/07/18 "'1
~ .....
02/04/19 a ('ti
-07/04/19 -..
?
12/01/19 C"' -
04/29/20 a
"Cl '-'
09/26/20
02/23/21
07/23/21
12/20/21
05/19/22
10/16/22
03/15/23
08/12/23
Water Levels and Data over Time
White Mesa Mill -Well TW 4-30
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,599.33 5,602.81 3.48 93.48
5,524.78 03/28/13 78.03 74.55
5,524.79 06/27/13 78.02 74.54
5,525.54 09/27/13 77.27 73.79
5,525.81 12/20/13 77.00 73.52
5,525.98 03/27/14 76.83 73.35
5,525.91 06/25/14 76.90 73.42
5,526.00 09/25/14 76.81 73.33
5,526.41 12/17/14 76.40 72.92
5,526.23 03/26/15 76.58 73.10
5,526.48 06/22/15 76.33 72.85
5,526.74 09/30/15 76.07 72.59
5,526.56 12/02/15 76.25 72.77
5,527.26 03/30/16 75.55 72.07
5,527.04 06/30/16 75.77 72.29
5,526.97 09/29/16 75.84 72.36
5,527.17 12/21/16 75.64 72.16
5,527.65 03/30/17 75.16 71.68
5,527.54 06/27/17 75.27 71.79
5,527.56 09/28/17 75.25 71.77
5,527.59 11/29/17 75.22 71.74
5,527.88 03/28/18 74.93 71.45
5,527.86 06/21/18 74.95 71.47
5,525.76 09/25/18 77.05 73.57
5,527.87 12/17/18 74.94 71.46
5,527.69 03/25/19 75.12 71.64
5,528.01 06/24/19 74.80 71.32
5,528.04 08/12/19 74.77 71.29
5,527.94 11/18/19 74.87 71.39
5,528.12 02/10/20 74.69 71.21
5,527.73 05/04/20 75.08 71.6
5,527.75 09/22/20 75.06 71.58
5,527.90 12/30/20 74.91 71.43
5,527.96 03/11/21 74.85 71.37
5,527.75 06/24/21 75.06 71.58
5,527.65 08/13/21 75.16 71.68
5,527.88 12/30/21 74.93 71.45
5,527.63 02/10/22 75.18 71.7
5,527.77 06/28/22 75.04 71.56
5,527.50 08/15/22 75.31 71.83
5,527.36 11/17/22 75.45 71.97
Depth Below Measuring Point (ft.)
-..I -..I -..I -..I -..I -..I -..I -..I -..I
00 00 -..I -..I °' °' V, V, ~
VI 0 VI 0 VI 0 V, 0 VI
0 0 0 0 0 0 0 0 0
07/10/12
12/07/12
05/06/13
10/03/13
03/02/14
07/30/14
12/27/14
05/26/15 ~
10/23/15 ~ ,l;i;,,.
I ~ -03/21/16 0
08/18/16 ~ --01/15/17 ~ "1
06/14/17
t::,
~ "Cl
11/11/17 ~
04/10/18 0 -< ~
09/07/18 "1
~ ....
02/04/19 a ~
07/04/19 --?
12/01/19 a" -
-04/29/20 a "Cl '-'
09/26/20
• 02/23/21
07/23/21
12/20/21
05/19/22
10/16/22
03/15/23
08/12/23
Water Levels and Data over Time
White Mesa Mill-Well TW4-31
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,601.10 5,604.58 3.48 107.48
5,520.17 03/28/13 84.41 80.93
5,520.36 06/27/13 84.22 80.74
5,521.22 09/27/13 83.36 79.88
5,521.81 12/20/13 82.77 79.29
5,522.25 03/27/14 82.33 78.85
5,522.32 06/25/14 82.26 78.78
5,522.64 09/25/14 81.94 78.46
5,523.27-12/17/14 81.31 77.83
5,523.33 03/26/15 81.25 77.77
5,523.82 06/22/15 80.76 77.28
5,524.34 09/30/15 80.24 76.76
5,524.29 12/02/15 80.29 76.81
5,525.32 03/30/16 79.26 75.78
5,525.33 06/30/16 79.25 75.77
5,525.43 09/29/16 79.15 75 .67
5,525.81 12/21/16 78.77 75.29
5,526.48 03/30/17 78.10 74.62
5,526.53 06/30/17 78.05 74.57
5,526.68 09/28/17 77.90 74.42
5,526.82 11/29/17 77.76 74.28
5,527.28 03/28/18 77.30 73.82
5,527.36 06/21/18 77.22 73.74
5,529.67 09/25/18 74.91 71.43
5,527.58 12/17/18 77.00 73.52
5,527.53 03/25/19 77 .05 73.57
5,527.94 06/24/19 76.64 73.16
5,528.03 08/12/19 76.55 73.07
5,528.02 11/18/19 76.56 73.08
5,528.30 02/10/20 76.28 72.80
5,528.01 05/04/20 76.57 73.09
5,528.13 09/22/20 76.45 72.97
5,528.41 12/30/20 76.17 72.69
5,528.59 03/11/21 75.99 72.51
5,528.34 06/24/21 76.24 72.76
5,528.17 08/13/21 76.41 72.93
5,528.49 12/30/21 76.09 72.61
5,528.36 02/10/22 76.22 72.74
5,528.30 06/28/22 76.28 72.80
5,528.30 08/15/22 76.28 72.80
5,528.15 11/17/22 76.43 72.95
Depth Below Measuring Point (ft.)
00 00 00 00 --.J --.J --.J Q\ ~ N 0 00 Q\ ~
0 0 0 0 0 0 0
0 0 0 0 0 0 0
L 07/10/12
-12/07/12
05/06/13
10/03/13
03/02/14
07/30/14
12/27/14 ~
05/26/15 ~ ,&;;.. I
-10/23/15 ~ ~
03/21/16 ~ --08/18/16 ~ "1
01/15/17 ~ ~ "'0
06/14/17 -=-
11/11/17 0 ~
04/10/18 ~ "1
~ 09/07/18 ... 9
02/04/19 ~ ---07/04/19 ?
C"' -12/01/19 9 "'0 04/29/20 '-"
09/26/20
02/23/21
07/23/21
12/20/21
05/19/22
10/16/22
03/15/23
08/12/23
Water Levels and Data over Time
White Mesa Mill -Well TW 4-32
Measuring Total or Total Water Land Measured Total
Elevation Surface Point Length Of Date Of Depth to Depth to Depth Of Elevation Riser (L) Monitoring Water (WL) (LSD) (MP) Water (blw.LSD) Well
{blw.MP)
5,610.20 5,611.84 1.64 114.64
5,564.43 09/27/13 47.41 45.77
5,563.74 12/20/13 48.10 46.46
5,563.24 03/27/14 48.60 46.96
5,562.43 06/25/14 49.41 47.77
5,561.90 09/25/14 49.94 48.30
5,560.93 12/17/14 50.91 49.27
5,561.35 03/26/15 50.49 48.85
5,561.15 06/22/15 50.69 49.05
5,560.96 09/30/15 50.88 49.24
5,560.58 12/02/15 51.26 49.62
5,560.85 03/30/16 50.99 49.35
5,560.25 06/30/16 51.59 49.95
5,559.69 09/29/16 52.15 50.51
5,559.75 12/21/16 52.09 50.45
5,560.14 03/30/17 51.70 50.06
5,559.44 06/27/17 52.40 50.76
5,558.99 09/28/17 52.85 51.21
5,558.84 11/29/17 53.00 51.36
5,558.85 03/28/18 52.99 51.35
5,558.52 06/22/18 53.32 51.68
5,557.92 09/25/18 53.92 52.28
5,557.89 12/17/18 53.95 52.31
5,557.24 03/25/19 54.60 52.96
5,557.41 06/24/19 54.43 52.79
5,557.03 08/12/19 54.81 53.17
5,556.86 11/18/19 54.98 53.34
5,557.04 02/10/20 54.80 53.16
5,556.29 05/04/20 55.55 53.91
5,555.99 09/22/20 55.85 54.21
5,555.99 12/30/20 55.85 54.21
5,556.19 03/11/21 55.65 54.01
5,555.54 06/24/21 56.30 54.66
5,555.41 08/13/21 56.43 54.79
5,555.56 12/30/21 56.28 54.64
5,555.23 02/10/22 56.61 54.97
5,555.56 06/28/22 56.28 54.64
5,554.76 08/15/22 57.08 55.44
5,554.52 11/17/22 57.32 55.68
-.l 0
0 0
0\ 0 0 0
◄
◄
Depth Below Measuring Point (ft.)
Ul 0 0 0
►
►
-"'"-0 0 0
(.;)
0 0 0
N 0
8
►
►
◄►
◄
►
◄►
►
t
►
◄
► ◄
◄►
►
◄ ►
◄►
►
◄ ◄►
► ◄
►
-0
8
0 0 0
'
-
-
12/07/12
05/06/13
10/03/13
03/02/14
07/30/14
12/27/14
05/26/15
10/23/15
03/21/16
08/18/16
01/15/17
06/14/17
11/11/17
04/10/18
09/07/18
02/04/19
07/04/19
12/01/19
04/29/20
09/26/20
02/23/21
07/23/21
12/20/21
05/19/22
10/16/22
03/15/23
08/12/23
~ ~ .i::.. I (,N
N
~ ..... t'D "1
t:,
t'D
l<'CI ..... =-0 ~ t'D "1
~ -· a t'D --? a -a
l<'CI --
Water Levels and Data over Time
White Mesa Mill -Well TW 4-33
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,605.20 5,606.73 1.53 86.23
5,536.70 09/27/13 70.03 68.50
5,536.62 12/20/13 70.11 68.58
5,536.49 03/27/14 70.24 68.71
5,536.06 06/25/14 70.67 69.14
5,535.73 09/25/14 71.00 69.47
5,535.73 12/17/14 71.00 69.47
5,535.14 03/26/15 71.59 70.06
5,534.98 06/22/15 71.75 70.22
5,534.81 09/30/15 71.92 70.39
5,534.34 12/02/15 72.39 70.86
5,534.33 03/30/16 72.40 70.87
5,533.90 06/30/16 72.83 71.30
5,533.48 09/29/16 73.25 71.72
5,533.39 12/21/16 73.34 71.81
5,533.28 03/30/17 73.45 71.92
5,533.01 06/27/17 73.72 72.19
5,532.67 09/28/17 74.06 72.53
5,532.53 11/29/17 74.20 72.67
5,532.37 03/28/18 74.36 72.83
5,532.13 06/21/18 74.60 73.07
5,531.82 09/25/18 74.91 73.38
5,531.61 12/17/18 75.12 73.59
5,531.14 03/25/19 75.59 74.06
5,531.08 06/24/19 75.65 74.12
5,530.98 08/12/19 75.75 74.22
5,530.45 11/18/19 76.28 74.75
5,530.22 02/10/20 76.51 74.98
5,529.68 05/04/20 77.05 75.52
5,529.30 09/22/20 77.43 75.90
5,529.15 12/30/20 77.58 76.05
5,529.07 03/11/21 77.66 76.13
5,528.64 06/24/21 78.09 76.56
5,528.48 08/13/21 78.25 76.72
5,528.74 12/30/21 77.99 76.46
5,528.18 02/10/22 78.55 77.02
5,528.57 06/28/22 78 .16 76.63
5,527.78 08/15/22 78 .95 77.42
5,527.65 11/17/22 79.08 77.55
00 0 0 0
-.I \0
8
-.I 00
0 0
-.I -.I 0 0
Depth Below Measuring Point (ft.)
-.I °' 0 0
-.I Vl
0 0
-.I -"'-0 0
-.I w
0 0
-.I N
0 0
-.I .....
0 0
-.I 0
0 0
°' \0
8
1-----+-------......-----1---l----+-------......-----1---1--------1-12/07/12
-05/06/13
-10/03/13
-03/02/14
07/30/14
12/27/14
05/26/15
10/23/15
03/21/16
08/18/16
01/15/17
06/14/17
11/11/17
04/10/18
09/07/18
02/04/19
,_ 07/04/19
,_ 12/01/19
04/29/20
-09/26/20
02/23/21
07/23/21
12/20/21
I• 05/19/22
I• 10/16/22
-03/15/23
'-----'-----'-------'-----L--'-----'------'------'-----'--___,J'-----'-08/l2/23
~ ~ I ~ ~
~ ~ ""l
t::,
~ "'Cl 5r
0 < ~ ""l
~ -· 9 ~ ,,-...
?
f --
Water Levels and Data over Time
White Mesa Mill -Well TW 4-34
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitorin~ (blw.MP) (blw.LSD) Well
5,601.60 5,603.34 1.74 95.74
5,534.04 09/27/13 69.30 67.56
5,534.14 12/20/13 69.20 67.46
5,533.89 03/27/14 69.45 67.71
5,533.32 06/25/14 70.02 68.28
5,532.94 09/25/14 70.40 68.66
5,532.99 12/17/14 70.35 68.61
5,532.37 03/26/15 70.97 69.23
5,532.24 06/22/15 71.10 69.36
5,532.08 09/30/15 71.26 69.52
5,531.79 12/02/15 71.55 69.81
5,531.80 03/30/16 71.54 69.80
5,531.28 06/30/16 72.06 70.32
5,530.87 09/29/16 72.47 70.73
5,530.74 12/21/16 72.60 70.86
5,530.79 03/30/17 72.55 70.81
5,530.43 06/27/17 72.91 71.17
5,530.12 09/28/17 73.22 71.48
5,530.01 11/29/17 73.33 71.59
5,529.84 03/28/18 73.50 71.76
5,529.64 06/21/18 73.70 71.96
5,529.39 09/25/18 73.95 72.21
5,529.23 12/17/18 74.11 72.37
5,528.83 03/25/19 74.51 72.77
5,528.84 06/24/19 74.50 72.76
5,528.75 08/12/19 74.59 72.85
5,528.30 11/18/19 75.04 73.30
5,528.18 02/10/20 75.16 73.42
5,527.62 05/04/20 75.72 73.98
5,527.28 09/22/20 76.06 74.32
5,527.22 12/30/20 76.12 74.38
5,527.10 03/11/21 76.24 74.50
5,526.73 06/24/21 76.61 74.87
5,526.63 08/13/21 76.71 74.97
5,526.78 12/30/21 76.56 74.82
5,526.26 02/10/22 77.08 75.34
5,525.76 06/28/22 77.58 75.84
5,525.83 08/15/22 77.51 75.77
5,525.67 11/17/22 77.67 75.93
Depth Below Measuring Point (ft.)
--.l --.l --.l --.l --.l --.l --.l --.l --.l --.l O'I O'I
\0 00 --.l O'I V, .j:::.. u,J N -0 \0 00
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
04/01/12
-08/14/13
-12/27/14
i,.,3
~ ,I;;;,.
I ~
05/10/16
,I;;;,.
~
"""" ~ ~
0 ~ 09/22/17 ~ ~
0 < ~ ~
02/04/19 i,.,3 .... a ~ ,,-....
?
O""
06/18/20 -a ~ --
10/31/21
-03/15/23
L--_.....__ _ __._ _ __1 __ ...!,..._ _ ___J__ _ ___L __ L__...,L_ _ ___L._----l __ __L 07/27 /24
Water Levels and Data over Time
White Mesa Mill -Well TW 4-35
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,598.67 5,599.87 1.20 86.5
5,525.52 9/25/2014 74.35 73.15
5,525.72 12/17/2014 74.15 72.95
5,525.56 3/26/2015 74.31 73.11
5,525.67 6/22/2015 74.20 73.00
5,525.81 9/30/2015 74.06 72.86
5,525.57 12/2/2015 74.30 73.10
5,526.01 3/30/2016 73.86 72.66
5,525.75 6/30/2016 74.12 72.92
5,525.57 9/29/2016 74.30 73.10
5,525.62 12/21/2016 74.25 73.05
5,525.87 3/30/2017 74.00 72.80
5,525.70 6/27/2017 74.17 72.97
5,525.57 9/28/2017 74.30 73.10
5,525.56 11/29/2017 74.31 73.11
5,525.64 3/28/2018 74.23 73.03
5,525.56 6/21/2018 74.31 73.11
5,525.46 9/25/2018 74.41 73.21
5,525.37 12/17/2018 74.50 73.30
5,525.12 3/25/2019 74.75 73.55
5,525.35 6/24/2019 74.52 73.32
5,525.31 8/12/2019 74.56 73.36
5,525.12 11/18/2019 74.75 73.55
5,525.17 2/10/2020 74.70 73.50
5,524.80 5/4/2020 75.07 73.87
5,524.71 9/22/2020 75.16 73.96
5,524.82 12/30/2020 75.05 73.85
5,524.49 3/11/2021 75.38 74.18
5,524.52 6/24/2021 75.35 74.15
5,524.45 8/13/2021 75.42 74.22
5,524.58 12/30/2021 75.29 74.09
5,524.30 2/10/2022 75.57 74.37
5,524.47 6/28/2022 75.40 74.20
5,524.09 8/15/2022 75.78 74.58
5,523.89 11/17/2022 75.98 74.78
vl/LZILO ~---~------------~--------~
£Z/~l/£0 -
lZ/1£/0l
,-.._
Q. e -,.Q
;;:! ..._,, 0Z/81/90 -~ e .... ~
~ ~ ~ 0 61/170/ZO --= -Q. ~ ~
~ ~ -~ ll/ZZ/60
l/)
~ I "" ~ ~ 91/01/~0
171/LZ/Zl
£1/171/80
0 0 0 0 0 0 0
if] 0 lf'l ~ if] 0 lf'l
("') -s::t= -s::t= lf'l lf'l \0 \0
t"-t"-t"-t"-t"-t"-t"-
(":y:) lll!Od l5uµnsl?,lli\I M.OPS: ipdga
Water Levels and Data over Time
White Mesa Mill -Well TW 4-36
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,615.18 5,616.59 1.41 99.41
5,559.14 09/25/14 57.45 56.04
5,559.77 12/17/14 56.82 55.41
5,559.79 03/26/15 56.80 55 .39
5,560.08 06/22/15 56.51 55.10
5,560.18 09/30/15 56.41 55 .00
5,559.95 12/02/15 56.64 55 .23
5,560.53 03/30/16 56.06 54.65
5,560.20 06/30/16 56.39 54.98
5,560.00 09/29/16 56.59 55.18
5,560.04 12/21/16 56.55 55 .14
5,560.43 03/30/17 56.16 54.75
5,560.26 06/27/17 56.33 54.92
5,560.12 09/28/17 56.47 55.06
5,560.07 11/29/17 56.52 55 .11
5,560.18 03/28/18 56.41 55.00
5,560.11 06/22/18 56.48 55 .07
5,560.14 09/25/18 56.45 55 .04
5,559.78 12/17 /18 56.81 55.40
5,559.43 03/25/19 57.16 55 .75
5,559.61 06/24/19 56.98 55.57
5,559.55 08/12/19 57.04 55.63
5,559.28 11/18/19 57.31 55 .90
5,559.32 02/10/20 57.27 55.86
5,558.94 05/04/20 57.65 56.24
5,558.64 09/22/20 57.95 56.54
5,558.76 12/30/20 57.83 56.42
5,558.84 03/11/21 57.75 56.34
5,558.44 06/24/21 58.15 56.74
5,558.31 08/13/21 58.28 56.87
5,558.53 12/30/21 58.06 56.65
5,558.09 02/10/22 58.50 57.09
5,558.46 06/28/22 58.13 56.72
5,557.86 08/15/22 58.73 57.32
5,557.72 11/17/22 58.87 57.46
£Zff,l/£0
ll/1£/01
--~ e -,.Q
~ 0l/81/90 .._,
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~ ~ j;,,-61/170/ZO 0
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\0 ""' I ~ rs ~ 91/01/~0
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00 <n
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0
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Water Levels and Data over Time
White Mesa Mill -Well TW 4-37
Total or
Measuring Measured
Water Point Depth to Total Depth
Elevation Land Surface Elevation Length Of Date Of Water to Water Total Depth
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Of Well
5,630.13 5,631.85 1.72 113.72
5,571.99 06/22/15 59.86 58.14
5,570.67 09/30/15 61.18 59.46
5,568.25 12/02/15 63.60 61.88
5,569.80 03/30/16 62.05 60.33
5,569.07 06/30/16 62.78 61.06
5,569.40 09/29/16 62.45 60.73
5,568.35 12/21/16 63.50 61.78
5,524.05 03/30/17 107.80 106.08
5,566.35 06/27/17 65.50 63.78
5,568.47 09/28/17 63.38 61.66
5,567.57 11/30/17 64.28 62.56
5,567.83 03/28/18 64.02 62.30
5,567.87 06/22/18 63.98 62.26
5,567.35 09/24/18 64.50 62.78
5,555.12 12/17/18 76.73 75.01
5,558.24 03/25/19 73.61 71.89
5,560.63 06/24/19 71.22 69.50
5,550.84 08/12/19 81.01 79.29
5,560.14 11/18/19 71.71 69.99
5,558.17 02/10/20 73.68 71.96
5,555.68 05/04/20 76.17 ,74.45
5,553.36 09/21/20 78.49 76.77
5,563.37 12/28/20 68.48 66.76
5,562.66 03/11/21 69.19 67.47
5,558.68 06/24/21 73.17 71.45
5,559.70 08/13/21 72.15 70.43
5,558.45 12/30/21 73.40 71.68
5,562.73 02/10/22 69.12 67.40
5,559.41 06/28/22 72.44 70.72
5,560.55 08/15/22 71.30 69.58
5,559.90 11/17/22 71.95 70.23
tZ/lZ/lO -.-----~-----.-----~-----.-----~------,
£Z/~l/£0
--IZ/1£/0l
Q.c e -.c
~ '-'
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tl/LZ/Zl
0 0 0 0 0 0 0
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ci ci ci ci ci ci ci
C'l """ I.O 00 0 C'l
("l.J) lll!Od i3uµnsT:?:lw MOPS: ipdga ..... .....
Water Levels and Data over Time
White Mesa Mill -Well TW 4-38
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,628.82 5,629.99 1.17 113.92
5,576.59 12/21/16 53.40 52.23
5,576.62 03/30/17 53.37 52.20
5,576.07 06/27/17 53.92 52.75
5,577.49 09/28/17 52.50 51.33
5,575.68 11/30/17 54.31 53.14
5,574.69 03/28/18 55.30 54.13
5,574.25 06/22/18 55.74 54.57
5,573.63 09/25/18 56.36 55.19
5,572.31 12/17/18 57.68 56.51
5,572.51 03/25/19 57.48 56.31
5,572.53 06/24/19 57.46 56.29
5,572.31 08/12/19 57.68 56.51
5,571.90 11/18/19 58.09 56.92
5,571.67 02/10/20 58.32 57.15
5,571.20 05/04/20 58.79 57.62
5,570.69 09/22/20 59.30 58.13
5,570.74 12/30/20 59.25 58.08
5,570.54 03/11/21 59.45 58.28
5,570.04 06/24/21 59.95 58.78
5,569.93 08/13/21 60.06 58.89
5,570.39 12/30/21 59.60 58.43
5,569.49 02/10/22 60.50 59.33
5,569.98 06/28/22 60.01 58.84
5,569.51 08/15/22 60.48 59.31
5,569.29 11/17/22 60.70 59.53
lZ/1£/01
--Col e -.c
~ --~ 0Z/81/90 e .... ~ s.. ~ ~ 0 -= -Col ~ ~ s.. 61/170/ZO ~ -~
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ll/ZZ/60 -
91/01/!;0
0 0 0 0 0 0 0 0 0 0 0 0 q 0 q 0 q q q 0 q 0
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1/) 1/) 1/) 1/) 1/) 1/) 1/) 1/) \0 \0 \0
("lJ) lll!Od ~uµnsugw MOPS: q1dga
Water Levels and Data over Time
White Mesa Mill -Well TW 4-39
Total or
Measuring Measured
Water Land Point Depth to Total Depth Total
Elevation Surface Elevation Length Of Date Of Water to Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,628.82 5,629.56 0.74 120.74
5,566.39 12/21/16 63.17 62.43
5,567.57 03/30/17 61.99 61.25
5,567.11 06/27/17 62.45 61.71
5,567.26 09/28/17 62.30 61.56
5,560.52 11/30/17 69.04 68.30
5,565.51 03/28/18 64.05 63.31
5,529.91 06/22/18 99.65 98.91
5,565.04 09/24/18 64.52 63.78
5,557.32 12/17/18 72.24 71 .50
5,564.12 03/25/19 65.44 64.70
5,553.85 06/24/19 75.71 74.97
5,555.03 08/12/19 74.53 73.79
5,549.98 11/18/19 79.58 78.84
5,548.39 02/10/20 81.17 80.43
5,544.51 05/04/20 85.05 84.31
5,552.04 09/21/20 77.52 76.78
5,553.71 12/28/20 75.85 75.11
5,557.31 03/11/21 72.25 71.51
5,554.26 06/24/21 75.30 74.56
5,555.01 08/13/21 74.55 73.81
5,555.23 12/30/21 74.33 73.59
5,559.05 02/10/22 70.51 69.77
5,558.79 06/28/22 70.77 70.03
5,555.74 08/15/22 73 .82 73.08
5,558.96 11/17/22 70.60 69.86
IZ/1£/01
,_
Cot s -..c
ct: ---~ OZ/81/90 s .... E-4
~ ~ j;I,,
0
-= Cot ~ ~
~ 61/tO/ZO ~ ~ ~
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LI/ZZ/60
9I/OI/5;0
0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 ci 0 ci
N '<t" IO 00 0 N
("lJ) lU!Od 8uµnst?gW M.opg tpdga --
Water Levels and Data over Time
White Mesa Mill -Well TW 4-40
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,595.66 5,597.58 1.92 86
5,531.12 03/28/18 66.46 64.54
5,530.83 06/22/18 66.75 64.83
5,530.34 09/25/18 67.24 65.32
5,530.06 12/17/18 67.52 65.60
5,529.52 03/25/19 68.06 66.14
5,527.69 06/24/19 69.89 67.97
5,526.98 08/12/19 70.60 68.68
5,526.43 11/18/19 71.15 69.23
5,525.57 02/10/20 72.Ql 70.09
5,525.81 05/04/20 71.77 69.85
5,525.51 09/21/20 72.07 70.15
5,523.08 12/28/20 74.50 72.58
5,526.17 03/11/21 71.41 69.49
5,525.45 06/24/21 72.13 70.21
5,525.26 08/13/21 72.32 70.40
5,525.46 12/30/21 72.12 70.20
5,525.47 02/10/22 72.11 70.19
5,524.39 06/28/22 73.19 71.27
5,525.27 08/15/22 72.31 70.39
5,525.24 11/17/22 72.34 70.42
-.J Ul -.J +>--.J l;.)
Depth Below Measuring Point (ft.)
-.J N -.J --.J 0 0\ \0 0\ 00 0\ -.J 0\ 0\
1-----------+---+----+---+-----i---+---+-----+--+ 03/01/18
07/29/18
12/26/18
05/25/19
10/22/19
03/20/20
08/17/20
01/14/21
-06/13/21
-11/10/21
-04/09/22
-09/06/22
02/03/23
L-----'----'--------'----__.__ _ ____._ __ __._ __ ~-~-~ 07/03/23
~ ~ ...
I ...
0
~ -('!)
"1
t:,
('!)
"0 ~
0 -< ('!)
"1
~ .... a ('!)
,,-.._
?
O"' -a "0 --
Water Levels and Data over Time
White Mesa Mill -Well TW 4-41
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (bhv.MP) (blw.LSD) Well
5,613.31 5,614.96 1.65 97 .8
5,539.24 03/28/18 75.72 74.07
5,526.18 06/22/18 88.78 87.13
5,513.86 09/24/18 101.10 99.45
5,536.53 12/17/18 78.43 76.78
5,521.88 03/25/19 93.08 91.43
5,527.89 06/24/19 87.07 85.42
5,530.75 08/12/19 84.21 82.56
5,536.69 11/18/19 78.27 76.62
5,538.67 02/10/20 76.29 74.64
5,526.94 05/04/20 88.02 86.37
5,529.30 09/21/20 85.66 84.01
5,528.43 12/28/20 86.53 84.88
5,525.74 03/11/21 89.22 87.57
5,525.25 06/24/21 89.71 88.06
5,526.09 08/13/21 88.87 87.22
5,524.68 12/30/21 90.28 88.63
5,524.95 02/10/22 90.01 88.36
5,524.97 06/28/22 89.99 88.34
5,525.83 08/15/22 89.13 87.48
5,525.79 11/17/22 89.17 87.52
......
N 0
......
0 0
Depth Below Measuring Point (ft.)
00 0 0\ 0 ~ 0 N 0 0
1-------+----------+------+-----t---------;-03/01/18
,_ 07/29/18
12/26/18
05/25/19
10/22/19
03/20/20
08/17/20
01/14/21
06/13/21
11/10/21
04/09/22
09/06/22
02/03/23
L.._ __ _____._ ___ __._ ___ __._ ___ __,__ ___ __.__ __ ~ 07 /03/23
~ ~ ,&:;...
I ,&:;...
"""'" ~ '""" ~ "'I
~ ~ "'Cl g.
0 ~ ~ "'I
~ ....
9 ~ ,-...
?
O" -9 "'Cl _,
Water Levels and Data over Time
White Mesa Mill -Well TW 4-42
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,592.39 5,594.70 2.31 86.0
5,518.98 03/28/18 75.72 73.41
5,528.28 06/24/19 66.42 64.11
5,527.90 08/12/19 66.80 64.49
5,527.13 11/18/19 67.57 65 .26
5,526.83 02/10/20 67.87 65.56
5,526.10 05/04/20 68.60 66.29
5,525.75 09/22/20 68.95 66.64
5,525.59 12/30/20 69.11 66.80
5,525.52 03/11/21 69.18 66.87
5,525.00 06/24/21 69.70 67.39
5,524.77 08/13/21 69.93 67.62
5,525.14 12/30/21 69.56 67.25
5,524.45 02/10/22 70.25 67.94
5,524.93 06/28/22 69.77 67.46
5,523.95 08/15/22 70.75 68.44
5,523.74 11/17/22 70.96 68.65
-..J 00 -..J 0\
Depth Below Measuring Point (ft.)
-..J .j::,,. -..J N -..J 0 0\ 00 0\ 0\ 0\ .j::,,.
1------i------+--------lf-----+-----i------i---+ 03/01/18
07/29/18
12/26/18
05/25/19
10/22/19
-03/20/20
08/17/20
01/14/21
06/13/21
11/10/21
04/09/22
09/06/22
02/03/23
'-----'------'---~~--~--~--~--~ 07/03/23
~ ~ ,I:;,.
I ,I:;,.
N
~ ...... ~ "1
~ ~ "'C ...... ::r"
0 ~ ~ "1
~ ....
9 ~ ---?
er -9 "'C '--"
Water Levels and Data over Time
White Mesa Mill -Well TW 4-43
Total or
Measuring Measured
Water Land Point Date Of Depth to Total Depth Total
Elevation Surface Elevation Length Of Monitoring Water to Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,595.17 5,596.89 1.72 95 .5
5,523.85 12/30/21 73.04 71.32
5,523.48 02/10/22 73.41 71.69
5,523.28 06/28/22 73.61 71.89
5,523.41 08/15/22 73.48 71.76
5,523.25 11/17/22 73.64 71.92
,_ ZZWl/80
0c a -.c
~ _,
~ a .... E-4 ZZILZ/£0 s. ~ ~
0
-= 0c ~ ~ s. ~ ...,._ IZ/8Z/01 ~
~ "" I "" ~ E-4
lZ/1£/~0
TabG
Chloroform Mass Removed and Volume Pumped in Chloroform Pumping Wells over Time
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
MW-4 MW-26 (formerly TW4-J5)
Total Total Pumped Total Total Total Total Pumped Total Total Quarter Pumped Cone Total (ug) Cone Total (ug)
(gal) (liters) (grams) (pounds) Pumped (gal) (liters) (grams) (pounds)
QI 2007 1307110 3370 4947411.4 l.6673E+10 16673 36.8 930510 1660 3521980.4 5846487381 5846 12.9
Q2 2007 81230 2000 307455.6 614911100 615 1.4 54400 300 205904.0 61771200 62 0.1
Q3 2007 100700 2600 381149.5 990988700 991 2.2 72080 1400 272822.8 381951920 382 0.8
04 2007 90830 2300 343791.6 790720565 791 1.7 61750 2000 233723.8 467447500 467 1.0
QI 2008 83950 2400 3 I 7750.8 762601800 763 1.7 47780 930 180847.3 168187989 168 0.4
Q2 2008 62780 2500 237622.3 594055750 594 1.3 44840 1300 169719.4 220635220 221 0.5
Q3 2008 81400 1800 308099.0 554578200 555 1.2 61280 630 231944.8 146125224 146 0.3
Q4 2008 91320 1700 345646.2 587598540 588 1.3 55700 630 210824.5 132819435 133 0.3
QI 2009 90710 2200 343337.4 755342170 755 1.7 52970 950 200491.5 190466878 190 0.4
Q2 2009 450040 1800 1703401.4 3066122520 3066 6.8 58050 410 219719.3 90084892.5 90 0.2
Q3 2009 90420 2000 342239.7 684479400 684 1.5 57610 850 218053.9 185345773 185 0.4
Q4 2009 322380 1800 1220208.3 2196374940 2196 4.8 61960 1100 234518.6 257970460 258 0.6
Ql 2010 68125 1600 257853.1 412565000 413 0.9 61320 780 232096.2 181035036 181 0.4
Q2 2010 84005.33 2100 317960.2 667716366 668 1.5 60500 1900 228992.5 435085750 435 1.0
03 2010 79859.1 1900 302266.7 574306718 574 1.3 63850 2200 241672.3 531678950 532 1.2
Q4 2010 90042.2 1500 340809.7 511214591 511 I.I 60180 970 227781.3 220947861 221 0.5
QI 2011 76247.6 1700 288597.2 490615182 491 I.I 55130 450 208667.1 93900172.5 94 0.2
Q2 2011 85849.3 1700 324939.6 552397321 552 1.2 55800.6 1800 211205.3 380169488 380 0.8
Q3 2011 85327.7 1700 322965.3 549041086 549 1.2 65618 720 248364.1 178822174 179 0.4
Q4 2011 89735.0 1600 339647.0 543435160 543 1.2 50191.3 1800 189974.1 341953327 342 0.8
QI 2012 90376.4 1500 342074.7 513112011 513 I.I 31440.1 2400 119000.8 285601868 286 0.6
Q2 2012 90916.5 1400 344118.8 481766269 482 I. I 26701.2 3000 101064.1 303192353 303 0.7
Q3 2012 91607.0 1500 346732.5 520098743 520 I.I 25246 3100 95556.1 296223941 296 0.7
Q4 2012 78840.0 1300 298409.4 387932220 388 0.9 30797 1200 116566.6 139879974 140 0.3
QI 2013 62943.7 1670 238241.9 397863981 398 0.9 22650.7 2120 85732.9 181753747 182 0.4
Q2 2013 71187.3 1490 269443.9 401471456 401 0.9 25343.4 4030 95924.8 386576819 387 0.9
Q3 2013 72898.8 1520 275922.0 419401376 419 0.9 25763 2940 97513,0 286688088 287 0.6
Q4 2013 70340.4 1410 266238.4 375396164 375 0.8 24207.6 1410 91625.8 129192330 129 0.3
QI 2014 69833.8 1390 264320.9 367406097 367 0.8 23263.1 1400 88050.8 123271167 123 0.3
Q2 2014 71934.9 1390 272273.6 378460299 378 0.8 23757.5 1960 89922.1 176247390 176 0.4
Q3 2014 74788.2 1490 283073.3 421779272 422 0.9 24062.4 2120 91076.2 193081510 193 0.4
Q4 2014 63093.0 1440 238807.0 343882087 344 0.8 21875.8 2090 82799.9 173051797 173 0.4
QI 2015 76454.3 1400 289379.5 405131336 405 0.9 24004.9 1980 90858.5 179899922 180 0.4
Q2 2015 60714.7 1300 229805.1 298746681 299 0.7 27804.6 1980 105240.4 208376014 208 0.5
Q3 2015 89520.8 1290 338836.2 437098734 437 1.0 21042.0 2350 79644.0 187163330 187 0.4
Q4 2015 99633.4 1200 377112.4 452534903 453 1.0 19355.6 2680 73260.9 196339335 196 0.4
QI 2016 90882.1 1240 343988.7 426546048 427 0.9 19150.8 2650 72485.8 192087312 192 0.4
Q2 2016 96540.5 1580 365405.8 577341152 577 1.3 22105.7 2220 83670.1 185747565 186 0.4
03 2016 79786.4 1430 301991.5 431847879 432 1.0 17149.5 3190 64910.9 207065635 207 0.5
Q4 2016 85414.0 1470 323292.0 475239225 475 1.0 18541.6 2510 70180.0 176151690 176 0.4
QI 2017 76642.3 1450 290091.1 420632103 421 0.9 26107.0 1290 98815.0 127471344 127 0.3
Q2 2017 72299.8 1430 273654.7 391326282 391 0.9 25921.8 2450 98114.0 240379332 240 0.5
Q3 2017 95349.3 1400 360897.1 505255941 505 I.I 27489.9 1230 104049.3 127980604 128 0.3
Q4 2017 106679.8 1320 403783.0 532993617 533 1.2 26445.8 2570 100097.4 257250197 257 0.6
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
MW-4 MW-26 (fonnerly TW4-15)
Total Total Pumped Total Total Total Total Pumped Total Total Quarter Pumped Cone Total (ug) Cone Total (ug)
(gal) Oiters) (grams) (pounds) Pumped (gal) (liters) (grams) (pounds)
QI 2018 105060.4 1320 397653.6 524902770 525 1.2 27004.7 1210 102212.8 123677475 124 0.3
Q2 2018 101786.2 1240 385260.8 477723351 478 I.I 26654.7 1870 100888.0 188660634 189 0.4
Q3 2018 95480.5 1300 361393.7 469811800 470 1.0 25536.1 1680 96654.1 162378953 162 0.4
Q4 2018 102884.8 1330 389418.9 517927177 518 I.I 23791.3 1480 90050.1 133274104 133 0.3
QI 2019 111746.9 1190 422962.0 503324800 503 I.I 26798.5 1110 101432.3 112589878 113 0.2
Q2 2019 94540.7 1300 357836.5 465187514 465 1.0 24050.2 1280 91030.0 116518409 117 0.3
03 2019 95517.7 1180 361534.5 426610704 427 0.9 24181.1 1360 91525.5 124474630 124 0.3
Q4 2019 99220.8 1370 375550.9 514504705 515 1.1 22384.8 1390 84726.5 117769791 118 0.3
01 2020 102597.0 1230 388329.6 477645370 478 1.1 24107.0 1100 91245.0 100369495 100 0.2
Q2 2020 101850.7 1250 385504.9 481881077 482 1.1 25418.4 1610 96208.6 154895917 155 0.3
Q3 2020 84607.8 1240 320240.6 397098342 397 0.9 23663.7 1130 89567.1 101210828 101 0.2
Q4 2020 91258.6 1050 345413.8 362684491 363 0.8 28934.5 866 109517.1 94841793.4 95 0.2
Qi 2021 93486.7 1150 353847.3 406924364 407 0.9 27898.0 3060 105593.9 323117426 323 0.7
Q2 2021 93252.4 1320 352960.3 465907641 466 1.0 29124.1 998 110234.7 110014249 110 0.2
Q3 2021 89693.5 1140 339489.9 387018483 387 0.9 27945.6 1580 105774.1 167123072 167 0.4
Q4 2021 95091.4 1100 359920.9 395913044 396 0.9 30045.3 826 113721.5 93933926.4 94 0.2
QI 2022 96291.3 1040 364462.6 379041073 379 0.8 29113.3 1030 110193.8 113499656 113 0.3
Q2 2022 93554.5 1010 354103.8 357644820 358 0.8 29385.9 611 111225.6 67958860.8 68 0.1
Q3 2022 82718.6 1200 313089.9 375707881 376 0.8 28531.3 612 107991.0 66090473.9 66 0.1
Q4 2022 91487.4 1170 346279.8 405147421 405 0.9 29411.4 1040 111322.1 115775035 116 0.3
Totals 7372866.54 114.0 3145726.8 39.8
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-19 TW4-20
Total Total Pumped Total Total Total Total Pumped Total Total Quarter Pumped Cone Total (ug) Cone Total (ug)
(gal) (liters) (grams) (pounds) Pumped (gal) (liters) (grams) (pounds)
QI 2007 6768986 2660 25620612.0 68150827947 68151 150.2 642290 16240 2431067.7 3.9481E+l0 39481 87.0
Q2 2007 605400 8 2291439.0 18331512 18 0.0 163520 1800 618923.2 1114061760 1114 2.5
03 2007 316080 ll00 1196362.8 1315999080 1316 2.9 70360 5200 266312.6 1384825520 1385 3.1
04 2007 334350 1100 1265514.8 1392066225 1392 3.1 63630 9000 240839.6 2167555950 2168 4.8
QI 2008 304784 1800 I 153607.4 2076493392 2076 4.6 66520 13000 251778.2 3273116600 3273 7.2
Q2 2008 380310 1000 1439473.4 1439473350 1439 3.2 39360 30000 148977.6 4469328000 4469 9.9
03 2008 529020 3600 2002340.7 7208426520 7208 15.9 53260 21000 201589.1 4233371100 4233 9.3
Q4 2008 589620 4200 2231711.7 9373189140 9373 20.7 50230 1000 190120.6 190120550 190 0.4
QI 2009 469100 1100 1775543.5 1953097850 1953 4.3 52050 8200 197009.3 1615475850 1615 3.6
Q2 2009 450040 990 1703401.4 1686367386 1686 3.7 49270 6800 186487.0 1268111260 1268 2.8
Q3 2009 200650 6600 759460.3 5012437650 5012 II.I 51030 13000 193148.6 2510931150 2511 5.5
Q4 2009 454205 4700 1719165.9 8080079848 8080 17.8 208790 15000 790270.2 l.1854E+10 11854 26.1
QI 2010 348550 940 1319261.8 1240106045 1240 2.7 14490 3500 54844.7 191956275 192 0.4
02 2010 453340 1800 1715891.9 3088605420 3089 6.8 39014.86 18000 147671.2 2658082412 2658 5.9
03 2010 116899.2 2000 442463.5 884926944 885 2.0 39098.3 15000 147987.1 2219805983 2220 4.9
04 2010 767970.5 1200 2906768.3 3488122011 3488 7.7 36752.5 24000 139108.2 3338597100 3339 7.4
QI 2011 454607.9 3400 1720690.9 5850349065 5850 12.9 37187.5 31000 140754.7 4363395313 4363 9.6
Q2 2011 159238.9 4000 602719.2 2410876946 2411 5.3 67907.7 8100 257030.6 2081948220 2082 4.6
Q3 2011 141542.6 970 535738.7 519666578.8 520 I.I 723 I 1.2 6800 273697.9 1861145666 1861 4.1
04 2011 147647.2 2200 558844.7 1229458234 1229 2.7 72089.3 7900 272858.0 2155578204 2156 4.8
QI 2012 148747 650 563007.4 365954806.8 366 0.8 76306 11000 288818.2 3177000310 3177 7.0
Q2 2012 172082.03 460 651330.5 299612022.4 300 0.7 22956.43 36000 86890.1 3128043152 3128 6.9
Q3 2012 171345 950 648540.8 616113783.8 616 1.4 22025 13000 83364.6 1083740125 1084 2.4
Q4 2012 156653 1500 592931.6 889397407.5 889 2.0 20ll4 19000 76131.5 1446498310 1446 3.2
QI 2013 210908 4210 798286.8 3360787344 3361 7.4 18177 18500 68799.9 1272798983 1273 2.8
Q2 2013 226224 2070 856257.8 1772453729 1772 3.9 20252.4 26300 76655.3 2016035284 2016 4.4
Q3 2013 329460.1 8100 1247006.5 10100752476 10101 22.3 19731 26800 74681.8 2001473178 2001 4.4
Q4 2013 403974 942 1529041.6 1440357178 1440 3.2 19280.2 15700 72975.6 1145716245 1146 2.5
QI 2014 304851 586 1153861.0 676162566.5 676 1.5 18781.6 17800 71088.4 1265372737 1265 2.8
Q2 2014 297660.0 810 1126643.1 912580911 913 2.0 18462.4 22100 69880.2 1544352066 1544 3.4
Q3 2014 309742.0 1410 1172373.5 1653046593 1653 3.6 17237.9 12400 65245.5 809043599 809 1.8
Q4 2014 198331.0 4310 750682.8 3235443019 3235 7.1 16341.8 23300 61853.7 1441191513 1441 3.2
QI 2015 60553.0 4660 229193.l 1068039869 1068 2.4 15744.7 19900 59593.7 1185914421 1186 2.6
Q22015 75102.8 1570 284264.1 446294633.9 446 1.0 18754.1 17600 70984.3 1249323126 1249 2.8
Q3 2015 116503.9 7860 440967.3 3466002675 3466 7.6 17657.3 17000 66832.9 1136158969 1136 2.5
Q4 2015 112762.7 7840 426806.8 3346165465 3346 7.4 15547.4 17000 58846.9 1000397453 1000 2.2
QI 2016 116597.0 7780 441319.6 3433466838 3433 7.6 14353.5 21600 54328.0 1173484746 1173 . 2.6
Q2 2016 123768.0 12600 468461.9 5902619688 5903 13.0 15818.3 33700 59872.3 2017695347 2018 4.4
03 2016 103609.0 6040 392160.1 2368646793 2369 5.2 12186.6 23600 46126.3 1088580232 1089 2.4
Q4 2016 104919.4 6640 397119.9 2636876329 2637 5.8 12879.6 21300 48749.3 1038359792 1038 2.3
Ql 2017 110416.7 1240 417927.2 518229739.8 518 I.I 13552.8 23400 51297.3 1200357943 1200 2.6
Q2 2017 109943.0 510 416134.3 212228470.1 212 0.5 12475.3 18100 47219.0 854664090 855 1.9
Q3 2017 112626.4 8840 426290.9 3768411768 3768 8.3 14556.8 27600 55097.5 1520690669 1521 3.4
Q4 2017 108891.2 129 412153.2 53167761.77 53 0.1 14271.0 11600 54015.7 626582526 627 1.4
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-19 TW4-20
Total Total Pumped Total Total Total Total Pumped Total Total Quarter Pumped Cone Total (ug) Cone Total (ug)
(gal) (liters) (grams) (pounds) Pumped (gal) (liters) (grams) (pounds)
OJ 2018 109856.3 2640 415806.1 1097728092 1098 2.4 14258.4 15400 53968.0 83 I 107878 831 1.8
Q2 2018 111271.4 2980 421162.2 1255063502 1255 2.8 13367.6 12000 50596.4 607156392 607 1.3
Q3 2018 105821.8 1910 400535.5 765022829.8 765 1.7 12443.6 10500 47099.0 494539773 495 1.1
Q4 2018 107197.4 5270 405742.2 2138261178 2138 4.7 12841.1 9500 48603.5 461733494 462 1.0
QI 2019 116132.8 2050 439562.6 9011034 28 .4 901 2.0 14623.9 15600 55351.5 863482799 863 1.9
Q2 2019 100704.0 11500 381164.6 4383393360 4383 9.7 13439:l 13700 50867.0 69687781 I 697 1.5
Q3 2019 101026.8 6670 382386.4 2550517541 2551 5.6 13787.0 10500 52183.8 547929848 548 1.2
Q4 2019 98806.8 551 373983.7 206065039.6 206 0.5 8317.69 8790 31482.5 276730794 277 0.6
QI 2020 96857.9 8720 366607.2 3196814361 3197 7.0 9505.05 14300 35976.6 514465584 514 1.1
Q2 2020 136619.7 7600 517105.6 3930002290 3930 8.7 100713.8 5800 381201.6 2210969393 2211 4.9
Q3 2020 154514.4 1350 584837.0 789529955.4 790 1.7 12476.2 Well collapsed and not sampled
Q4 2020 144512.0 660 546977.9 361005427.2 361 0.8 Well plugged and abandoned
Qi 2021 133462.3 6660 505154.8 3364331005 3364 7.4 Well plugged and abandoned
Q2 2021 151242.8 775 572454.0 443651848.5 444 1.0 Well plugged and abandoned
Q3 2021 157632.4 4450 596638.6 2655041921 2655 5.9 Well plugged and abandoned
04 2021 124359.9 6950 470702.2 3271380439 3271 7.2 Well plugged and abandoned
QI 2022 112209.2 654 424711.8 277761531.6 278 0.6 Well plugged and abandoned
Q2 2022 123246.5 2540 466488.0 1184879526 1185 2.6 Well olugged and abandoned
Q3 2022 137486.6 4750 520386.7 2471836850 2472 5.4 Well plugged and abandoned
Q4 2022 137474.5 7380 520341.0 3840116451 3840 8.5 Well plugged and nbandoncd
Totals 480.7 2582397.89 296.2
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-4 TW4-22
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters)
QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA
04 2009 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2010 84513.9 2000 319885.1 639770223 640 1.4 NA NA NA NA NA NA
Q3 2010 76916.8 2100 291130.1 611373184.8 611 1.3 NA NA NA NA NA NA
Q4 2010 86872.1 1700 328810.9 558978527.5 559 1.2 NA NA NA NA NA NA
QI 2011 73360.0 1800 277667.6 499801680 500 I.I NA NA NA NA NA NA
Q22011 80334.6 1700 304066.5 516912983.7 517 I.I NA NA NA NA NA NA
Q3 2011 97535.0 1500 369170.0 553754962.5 554 1.2 NA NA NA NA NA NA
Q42011 109043.5 1500 412729.6 619094471.3 619 1.4 NA NA NA NA NA NA
01 2012 101616.8 1200 384619.6 461543505.6 462 1.0 NA NA NA NA NA NA
Q2 2012 87759.1 1500 332168.2 498252290.3 498 I.I NA NA NA NA NA NA
Q3 2012 80006.0 1600 302822.7 484516336 485 I.I NA NA NA NA NA NA
Q4 2012 71596 1400 270990.9 379387204 379 0.8 NA NA NA NA NA NA
QI 2013 58716.8 1460 222243.1 324474908.5 324 0.7 16677.4 10600 63124.0 669113965.4 669.1 1.5
Q2 2013 65603.4 1330 248308.9 330250795.8 330 0.7 25523.2 12500 96605.3 1207566400.0 1207.6 2.7
Q3 2013 63515.4 1380 240405.8 33 I 759988.8 332 0.7 25592.9 9640 96869.1 933818379.5 933.8 2.1
Q4 2013 60233.6 1360 227984.2 310058479.4 310 0.7 24952.2 13300 94444.1 1256106224.1 1256.1 2.8
QI 2014 58992.9 1260 223288.1 281343039.4 281 0.6 24532.0 12100 92853.6 1123528802.0 1123.5 2.5
Q2 2014 60235.3 1220 227990.6 278148544.8 278 0.6 24193.9 12400 91573.9 1135516502.6 1135.5 2.5
03 2014 69229.4 1320 262033.3 345883928.3 346 0.8 24610.9 12400 93152.3 l 155087980.6 1155.1 2.5
04 2014 64422.6 1130 243839.5 275538681.3 276 0.6 23956.9 12400 90676.9 1124393144.6 1124.4 2.5
012015 36941.3 1350 139822.8 188760807.7 189 0.4 22046.9 12700 83447.5 l 059783459.6 1059.8 2.3
Q2 2015 68162.8 1280 257996.2 330235133.4 330 0.7 23191.6 8050 87780.2 706630658.3 706.6 1.6
Q3 2015 64333.0 1220 243500.4 297070494.1 297 0.7 24619.9 7810 93186.3 727785170.9 727.8 1.6
Q4 2015 59235.1 1190 224204.9 266803775.7 267 0.6 23657.6 7530 89544.0 674266440.5 674.3 1.5
Ql 2016 57274.0 1190 216782.1 257970687 .1 258 0.6 24517.8 6070 92799.9 563295229.1 563.3 1.2
Q2 2016 61378.0 1780 232315.7 413521999.4 414 0.9 26506.3 8570 100326.3 859796780.9 859.8 1.9
Q3 2016 50104.2 1380 189644.4 261709267 .9 262 0.6 22144.1 5840 83815.4 489482044.0 489.5 1.1
Q4 2016 31656.0 1430 119818.0 171339682.8 171 0.4 23646.8 3370 89503.1 301625575.l 301.6 0.7
QI 2017 23526.8 1290 89048.9 114873130 115 0.3 24066.2 5320 91090.6 484601816.4 484.6 1.1
Q2 2017 23244.9 1290 87981.9 113496711 113 0.3 23685.0 3670 89647.7 329007150.8 329.0 0.7
Q3 2017 23937.3 1290 90602.7 116877457.8 117 0.3 24583.2 5150 93047.4 479194171.8 479.2 1.1
Q4 2017 22900.6 1120 86678.8 97080223.52 97 0.2 23779.6 4770 90005.8 429327599.2 429.3 0.9
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of ~11ter Pumped
TW4-4 TW4-22
Total Total Total Total Total Total
Quarter Pumped Cone Pumped Total (ug) Pumped Cone Pumped Total (ug) Total Total
(gal) (liters) (grams) (pounds) (gal) (liters) (grams) (pounds)
01 2018 23103.4 1160 87446.4 101437788 101 0.2 23982.8 4530 90774.9 411210287.9 411.2 0.9
02 2018 18137.0 1050 68648.5 72080972.25 72 0.2 23256.6 3010 88026.2 264958955.3 265.0 0.6
03 2018 15366.0 1030 58160.3 59905119.3 60 0.1 21248.7 3600 80426.3 289534786.2 289.5 0.6
Q4 2018 15420.2 1140 58365.5 66536620.98 67 0.1 24171.0 2680 91487.2 245185789.8 245.2 0.5
Ql 2019 16655.0 1050 63039.2 66191133.75 66 0.1 26149.9 4310 98977.4 426592471.2 426.6 0.9
Q2 2019 14311.9 1070 54170.5 579624 79 .41 58 0.1 23073.1 4690 87331.7 409585595.6 409.6 0.9
Q3 2019 14520.0 989 54958.2 54353659.8 54 0.1 24711.7 3460 93533.8 323626894.4 323.6 0.7
Q4 2019 14399.8 1140 54503.2 62133697.02 62 0.1 24052.5 3820 91038.7 347767881.8 347.8 0.8
Ql 2020 14439.2 1100 54652.4 60117609.2 60 0.1 24746.1 3910 93664.0 366226195.0 366.2 0.8
Q2 2020 15347.0 1140 58088.4 66220770.3 66 0.1 25295.3 2530 95742.7 242229057 .6 242.2 0.5
Q3 2020 14389.9 1110 54465.8 60457006.37 60 0.1 23050.6 3760 87246.5 328046919.0 328.0 0.7
Q4 2020 15061.5 979 57007.8 55810614.17 56 0.1 22866.1 3640 86548.2 315035406.1 315.0 0.7
Ql 2021 13740.8 1130 52008.9 58770088.64 59 0.1 22605.6 5100 85562.2 436367199.6 436.4 1.0
02 2021 13425.7 1240 50816.3 63012180.38 63 0.1 22893.3 4520 86651.1 391663155.1 391.7 0.9
03 2021 12021.0 1100 45499.5 50049433.5 50 0.1 22272.5 3510 84301.4 295897957 .9 295.9 0.7
04 2021 11401.1 950 43153.2 40995505.33 41 0.1 22667.3 3330 85795.7 285699782.6 285.7 0.6
Ql 2022 10434.1 1010 39493.1 39887999.19 40 0.1 22083.6 3320 83586.4 277506934.3 277.5 0.6
Q2 2022 11463.2 1110 43388.2 48160915.32 48 0.1 22489.0 2600 85120.9 221314249.0 221.3 0.5
Q3 2022 7928.5 1040 30009.4 31209747.4 31 0.1 21940.2 3190 83043.7 264909265.8 264.9 0.6
Q4 2022 8777.0 1030 33220.9 34217573.35 34 0.1 22398.4 2350 84777.9 199228168.4 199.2 0.4
Totals 2253539.S 26.6 942438.7 48.6
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-24 TW4-25
Total Total Total Total Total Total
Quarter Pumped Cone Pumped Total (ug) Pumped Cone Pumped Total (ug) Total Total
(gal) (liters) (grams) (pounds) (gal) (liters) (grams) (pounds)
QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA
03 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q22011 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2011 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2013 144842.6 5.7 548229.2 3124906.7 3.1 0.0 99369.9 0.0 376115.1 0.0 0.0 0.0
02 2013 187509.3 17.4 709722.7 12349175.0 12.3 0.0 147310.4 0.0 557569.9 0.0 0.0 0.0
Q3 2013 267703.5 21.8 1013257.7 22089018.9 22.1 0.1 145840.9 0.0 552007.8 0.0 o.o 0.0
Q4 2013 260555.3 32.5 986201.8 32051558.8 32.1 0.1 126576.5 0.0 479092.1 0.0 0.0 0.0
QI 2014 229063.9 78.5 867006.9 68060038.6 68.1 0.2 129979.2 0.0 491971.3 0.0 0.0 0.0
Q2 2014 216984.1 62.7 821284.8 51494558.1 51.5 0.1 124829.8 0.0 472480.8 0.0 0.0 0.0
Q3 2014 213652.5 76.3 808674.7 61701880.6 61.7 0.1 119663.9 0.0 452927.9 0.0 0.0 0.0
Q4 2014 178468.7 25.8 675504.0 17428004.0 17.4 0.04 107416.1 0.0 406569.9 0.0 0.0 0.0
QI 2015 92449.3 49.2 349920.6 17216093.5 17.2 0.04 71452.4 0.0 270447.3 0.0 0.0 0.0
Q2 2015 62664.2 4.28 237184.0 1015147.5 1.0 0.002 91985.3 0.0 348164.4 0.0 0.0 0.0
Q3 2015 66313.2 46.9 250995.5 11771687.2 11.8 0.026 124137.1 0.0 469858.9 0.0 0.0 0.0
Q4 2015 107799.1 25.3 408019.6 10322895.7 10.3 0.023 116420.1 0.0 440650.1 0.0 0.0 0.0
QI 2016 100063.2 22.8 378739.2 8635254.0 8.6 0.019 115483.2 0.0 437103.9 0.0 0.0 0.0
Q2 2016 65233.6 69.6 246909.2 17184878.6 17.2 0.D38 125606.0 0.0 475418.7 0.0 0.0 0.0
Q3 2016 51765.8 17.8 195933.6 3487617.2 3.5 0.008 104983.6 0.0 397362.9 0.0 0.0 0.0
Q4 2016 99522.5 20.8 376692.7 7835207.4 7.8 0.017 98681.2 0.0 373508.3 0.0 0.0 0.0
Ql 2017 99117.4 18.3 375159.4 6865416.3 6.9 0.D15 161.2 1.15 610.1 701.7 0.0 0.0
Q2 2017 52808.7 17.2 199880.9 3437952.0 3.4 0.008 101617.2 0.0 384621.1 0.0 0.0 0.0
Q3 2017 55574.6 17.8 210349.9 3744227.5 3.7 0.008 124138.4 0.0 469863.8 0.0 0.0 0.0
Q4 2017 106021.4 16.0 401291.0 6420656.0 6.4 0.014 116731.9 0.0 441830.2 0.0 0.0 0.0
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-24 TW4-25
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters)
012018 96900.2 24.9 366767.3 9132504.7 9.1 0.020 116991.7 0.0 442813.6 0.0 0.0 0.0
Q2 2018 53117.9 49.2 201051.3 9891721.6 9.9 0.022 117758.3 0.0 445715.2 0.0 0.0 0.0
Q3 2018 53142.5 35.0 201144.4 7040052.7 7.0 0.016 111657.5 0.0 422623.6 0.0 0.0 0.0
Q4 2018 101606.4 21.0 384580.3 8076185.5 8.1 0.018 114458.2 0.0 433224.3 0.0 0.0 0.0
Qt 2019 97701.0 28.1 369798.3 10391331.8 10.4 0.023 90789.5 0.0 343638.3 0.0 0.0 0.0
Q2 2019 53197.3 28.8 201351.8 5798931.3 5.8 0.013 88302.0 0.0 334223.1 0.0 0.0 0.0
03 2019 54445.7 31.1 206077.0 6408993.9 6.4 0.014 87609.5 0.0 331602.0 0.0 0.0 0.0
Q4 2019 102211.02 43.3 386868.7 16751415.2 16.8 0.037 85928.53 0.0 325239.5 0.0 0.0 0.0
QI 2020 86344.38 61.7 326813.5 20164391.6 20.2 0.044 85049.47 0.0 321912.2 0.0 0.0 0.0
Q2 2020 57634.7 49.4 218147.3 10776478.6 10.8 0.024 90767.9 0.0 343556.6 0.0 0.0 0.0
Q3 2020 53316.1 63.8 201801.4 12874931.8 12.9 0.028 83956.3 0.0 317774.6 0.0 0.0 0.0
Q4 2020 103987.2 72.6 393591.6 28574746.7 28.6 0.063 86254.4 0.0 326472.7 0.0 0.0 0.0
Qi 2021 81891.2 96.2 309958.3 29817985.4 29.8 0.066 80272.2 0.0 303830.4 0.0 0.0 0.0
Q2 2021 54377.9 41.2 205820.4 8479798.5 8.5 0.019 82692.8 0.0 312992.2 0.0 0.0 0.0
Q3 2021 53333.1 103.0 201865.8 20792175.7 20.8 0.046 82802.3 0.0 313406.7 0.0 0.0 0.0
Q4 2021 96534.8 112.0 365384.2 40923032.4 40.9 0.090 89361.5 0.0 338233.3 0.0 0.0 0.0
QI 2022 73545.0 114.0 278367.8 31733932.1 31.7 0.070 92972.1 0.0 351899.4 0.0 0.0 0.0
Q2 2022 50341.7 124.0 190543.3 23627373.5 23.6 0.052 101724.9 0.0 385028.7 0.0 0.0 0.0
Q3 2022 58456.4 88.9 221257.7 19669806.3 19.7 0.043 98357.6 0.0 372283.7 0.0 0.0 0.0
Q42022 100289.8 79.5 379596.9 30177956.0 30.2 0.067 95056.0 0.0 359787.1 0.0 0.0 0.0
Totals 4140487.3 1.6 4075147.1 0.0
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-0l TW4-02
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters)
QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA
03 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2010 NA NA NA NA NA NA NA NA NA NA NA NA
01 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q42011 NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2013 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2014 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2014 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2014 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2014 NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2015 24569.2 1130 92994.4 105083696.9 105.1 0.23 24156.7 1840 91433.1 168236921.5 168.2 0.37
Q2 2015 23989.9 1260 90801.8 114410232.1 114.4 0.25 22029.9 1650 83383.2 137582233.0 137.6 0.30
Q32015 23652.0 1060 89522.8 94894189.2 94.9 0.21 21586.9 1310 81706.4 107035405.6 107.0 0.24
Q42015 20764.3 1040 78592.9 81736590.5 81.7 0.18 21769.8 2070 82398.7 170565294.5 170.6 0.38
Ql 2016 19255.6 974 72882.4 70987502.4 71.0 0.16 20944.6 1970 79275.3 156172362.7 156.2 0.34
Q2 2016 19588.2 1140 74141.3 84521124.2 84.5 0.19 20624.0 2070 78061.8 161588008.8 161.6 0.36
Q3 2016 15613.5 1160 59097.1 68552633.1 68.6 0.15 17487.4 1780 66189.8 117817860.0 117.8 0.26
Q4 2016 16756.8 1330 63424.5 84354569.0 84.4 0.19 19740.6 1600 74718.2 119549073.6 119.5 0.26
Ql 2017 16931.8 519 64086.9 33261081.9 33.3 0.07 19869.7 1570 75206.8 118074698.8 118.1 0.26
Q2 2017 18200.2 977 68887.8 67303338.6 67.3 0.15 18716.7 1940 70842.7 137434856.4 137.4 0.30
Q3 2017 17413.6 958 65910.5 63142236.0 63.1 0.14 19338.8 1310 73197.4 95888539.0 95.9 0.21
Q4 2017 14089.8 556 53329.9 29651420.5 29.7 0.07 17327.6 1610 65585.0 105591795.3 105.6 0.23
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-01 TW4-02
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) Oilers)
01 2018 12505.7 70.4 47334.1 3332318.8 3.3 0.01 16232.3 764 61439.3 46939591.2 46.9 0.10
Q2 2018 10814.8 942 40934.0 38559845.0 38.6 0.09 16051.4 949 60754.5 57656067.0 57.7 0.13
Q3 2018 9727.3 1010 36817.8 37186008.8 37.2 0.08 14927.2 980 56499.5 55369463.0 55.4 0.12
Q4 2018 9836.7 752 37231.9 27998395.9 28.0 0.06 15464.1 822 58531.6 48112990.4 48.1 0.11
QI 2019 10603.6 87.2 40134.6 3499739.4 3.50 0.01 16169.9 1040.0 61203.1 63651194.4 63.65 0.14
Q2 2019 9393.9 1040.0 35555.9 36978148.0 36.98 0.08 13893.7 1360.0 52587.7 71519210.1 71.52 0.16
Q3 2019 9734.1 894 36843.6 32938150.2 32.94 0.07 14106.9 797 53394.6 42555509.4 42.56 0.09
Q4 2019 9184.3 1070 34762.6 37195955.8 37.20 0.08 14220.9 934 53826.1 50273583.5 50.27 0.11
QI 2020 8796.7 1190 33295.5 39621656.3 39.62 0.09 13162.1 1880 49818.5 93658871.2 93.66 0.21
Q2 2020 9600.2 499 36336.8 18132041.7 18.13 0.04 14155.6 1070 53578.9 57329472.2 57.33 0.13
Q3 2020 9487.3 1060 35909.4 38063996.3 38.06 0.08 14009.5 1260 53026.0 66812706.5 66.81 0.15
Q4 2020 9318.7 924 35271.3 32590662.3 32.59 0.Q7 14582.9 1130 55196.3 62371792.4 62.37 0.14
QI 2021 9066.4 948 34316.3 32531875.2 32.53 0.Q7 13189.6 939 49922.6 46877355.2 46.88 0.10
Q2 2021 8764.1 957 33172.1 31745717.4 31.75 0.07 11975.9 1160 45328.8 52581386.5 52.58 0.12
Q3 2021 8677.2 821 32843.2 26964268.8 26.96 0.06 12694.5 1150 48048.7 55255984.9 55.26 0.12
Q4 2021 8873.4 957 33585.8 32141628.8 32.14 0.Q7 12351.3 852 46749.7 39830719.3 39.83 0.09
QI 2022 8251.8 946 31233.1 29546477.6 29.55 0.Q7 11380.6 1020 43075.6 43937082.4 43.94 0.10
Q2 2022 7616.0 914 28826.6 26347475.8 26.35 0.06 11518.1 892 43596.0 38887639.6 38.89 0.09
Q3 2022 8512.1 954 32218.3 30736256.8 30.74 0.07 10953.7 832 41459.8 34494515.7 34.49 0.08
Q42022 8450.8 1010 31986.3 32306140.8 32.31 0.Q7 12148.6 1030 45982.5 47361924.5 47.36 0.10
Totals 418040.0 3.3 516781.5 5.9
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-11 TW4-21
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters)
QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2010 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2011 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2013 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2014 NA NA NA NA NA NA NA NA NA NA NA NA
02 2014 NA NA NA NA NA NA NA NA NA NA NA NA
03 2014 NA NA NA NA NA NA NA NA NA NA NA NA
04 2014 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2015 9898.7 2450 37466.6 91793119.8 91.8 0.20 NA NA NA NA NA NA
02 2015 5243.3 2710 19845.9 53782363.3 53.8 0.12 30743.7 366 116364.9 42589555.0 42.6 0.09
Q3 2015 3584.4 1120 13567.0 15194988.5 15.2 0.03 125285.4 281 474205.2 133251672.2 133.3 0.29
Q4 2015 4110.3 2730 15557.5 42471935.4 42.5 0.09 134774.9 339 510123.0 172931695.8 172.9 0.38
QI 2016 3676.2 2660 13914.4 37012349.2 37.0 0.08 125513.3 390 475067.8 185276457.8 185.3 0.41
Q2 2016 3760.4 3340 14233.1 47538600.8 47.5 0.10 132248.7 545 500561.3 272805924.6 272.8 0.60
Q3 2016 2953.8 3200 11180.1 35776425.6 35.8 0.08 110381.9 456 417795.5 190514744.1 190.5 0.42
Q4 2016 3050.2 3180 11545.0 36713122.3 36.7 0.08 130311.3 434 493228.3 214061069.4 214.1 0.47
Ql 2017 2984.2 3310 11295.2 37387102.1 37.4 0.08 54333.5 598 205652.3 122980073.9 123.0 0.27
Q2 2017 2845.9 3370 10771.7 36300735.2 36.3 0.08 60969.7 224 230770.3 51692550.4 51.7 0.11
03 2017 2830.0 3290 10711.6 35240999.5 35.2 0.08 120116.2 537 454639.8 244141581.7 244.1 0.54
Q4 2017 2612.7 2880 9889.1 28480520.2 28.5 0.06 126492.5 466 478774.1 223108736.4 223.1 0.49
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-11 TW4-21
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters)
01 2018 2571.0 3090 9731.2 30069516.2 30.1 0.07 117832.0 421 445994.1 187763524.5 187.8 0.41
Q2 2018 2513.5 2800 9513.6 26638073.0 26.6 0.06 116681.0 532 441637.6 234951195.2 235.0 0.52
Q3 2018 2170.2 3050 8214.2 25053331.4 25.1 0.06 110001.4 476 416355.3 198185122.3 198.2 0.44
Q4 2018 2379.5 2930 9006.4 26388774.0 26.4 0.06 121686.3 585 460582.8 269440914.0 269.4 0.59
QI 2019 2342.4 2820 8866.0 25002074.9 25.00 0.06 123264 323 466554.6 150697141.8 150.70 0.3
Q2 2019 2195.1 2970 8308.5 24676106.9 24.68 0.05 106893.6 734 404592.3 296970730.6 297.0 0.7
03 2019 2046.0 2790 7744.1 21606066.9 21.61 0.05 108132.9 596 409283.0 243932683.8 243.9 0.5
Q4 2019 1983.9 3250 7509.1 24404449.9 24.40 0.05 116167.55 794 439694.2 349117176.3 349.1 0.8
QI 2020 1947.4 2990 7370.9 22039017.9 22.04 0.05 106622.01 844 403564.3 340608275.8 340.6 0.8
Q2 2020 2003.9 2810 7584.8 21313179.8 21.31 0.05 110999.13 767 420131.7 322241019.3 322.2 0.7
Q3 2020 1784.1 3070 6752.8 20731152.8 20.73 0.05 99515.11 920 376664.7 346531516.0 346.5 0.8
Q4 2020 1394.6 2670 5278.6 14093757.9 14.09 0.03 107061.16 948 405226.5 384154713.1 384.2 0.8
QI 2021 2195.1 2750 8308.5 22848455.3 22.85 0.05 97211.49 400 367945.5 147178195.9 147.2 0.3
Q2 2021 1694.5 3320 6413.7 21293425.9 21.29 0.05 97157.60 1130 367741.5 415547913.1 415.5 0.9
03 2021 1560.8 2600 5907.6 15359832.8 15.36 0.03 93390.40 669 353482.7 236479902.2 236.5 0.5
Q4 2021 1485.5 2850 5622.6 16024459.9 16.02 0.04 102535.00 649 388095.0 251873638.8 251.9 0.6
QI 2022 1497.2 2780 5666.9 15753987.6 15.75 0.03 91105.40 469 344833.9 161727117.4 161.7 0.4
Q2 2022 1473.l 2550 5575.7 14217992.9 14.22 0.03 91682.50 657 347018.3 227990998.5 228.0 0.5
Q3 2022 1304.3 3020 4936.9 14909290.6 14.91 0.03 87160.0 1070 329900.7 352993763.5 353.0 0.8
Q4 2022 1442.4 2900 5459.5 15832503.6 15.83 O.o3 94463.6 482 357544.6 172336503.2 172.3 0.4
Totals 85534.6 2.0 3250733.4 15.8
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-37 TW4-39
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) Pumped Cone Pumped Total (ug)
(gal) (liters) (grams) (pounds) (gal) (liters) (grams) (pounds)
QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA
03 2010 NA NA NA NA NA NA NA NA NA NA NA NA
04 2010 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2011 NA NA NA NA NA NA NA NA NA NA NA NA
022011 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q42011 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2013 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2014 NA NA NA NA NA NA NA NA NA NA NA NA
02 2014 NA NA NA NA NA NA NA NA NA NA NA NA
03 2014 NA NA NA NA NA NA NA NA NA NA NA NA
04 2014 NA NA NA NA NA NA NA NA NA NA NA NA
012015 NA NA NA NA NA NA NA NA NA NA NA NA
Q22015 29206.0 30200 110544.7 3338450242.0 3338.5 7.4 NA NA NA NA NA NA
Q3 2015 118063.9 19100 446871.9 8535252554.7 8535.3 18.8 NA NA NA NA NA NA
Q42015 111737.5 19500 422926.4 8247065531.3 8247.1 18.2 NA NA NA NA NA NA
QI 2016 111591.0 17500 422371.9 7391508862.5 7391.5 16.3 NA NA NA NA NA NA
Q2 2016 119241.2 16200 451327.9 7311512660.4 7311.5 16.1 NA NA NA NA NA NA
Q3 2016 98377.6 15900 372359 5920511534.4 5920.5 13.1 NA NA NA NA NA NA
Q4 2016 101949.1 16400 385877 6328388433.4 6328.4 14.0 3598.3 2800 13620 38134783.4 38.1 0.1
Ql 2017 97071.7 18000 367416 6613494921.0 6613.5 14.6 103117.8 6460 390301 2521343639.6 2521.3 5.56
02 2017 93191.3 15800 352729 5573119313.9 5573.1 12.3 41313.0 5560 156370 869415559.8 869.4 1.92
Q3 2017 81749.3 15000 309421 4641316507.5 4641.3 10.2 34546.3 10000 130758 1307577455.0 1307.6 2.9
Q4 2017 87529.6 15500 331300 5135142808.0 5135.1 11.3 68180.2 552 258062 142450255.5 142.5 0.3
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-37 TW4-39
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters)
012018 84769.3 12900 320852 4138988226.5 4139.0 9.1 59262.2 2870 224307 643762315.5 643.8 1.4
Q2 2018 83653.1 14400 316627 4559428562.4 4559.4 JO.I 34259.8 7160 129673 928461135.9 928.5 2.0
Q3 2018 77457.8 14100 293178 4133806599.3 4133.8 9.1 33473.4 8180 126697 1036379979.4 1036.4 2.3
Q4 2018 76271.4 15200 288687 4388046184.8 4388.0 9.7 37003.6 6520 140059 913182241.5 913.2 2.0
QI 2019 77591 13300 293683.4 3905989871. 7 3906.0 8.6 49117 885 185907.5 164528107.9 164.5 0.4
Q2 2019 64950.1 16200 245836.1 3982545281.7 3982.5 8.8 34285.7 8640 129771.4 1121224675.7 1121.2 2.5
Q3 2019 67572.0 11900 255760.0 3043544238.0 3043.5 6.7 36976.2 4240 139954.9 593408848.1 593.4 1.3
Q4 2019 66732.4 13100 252582.1 3308825955.4 3308.8 7.3 51808.6 1650 196095.6 323557659.2 323.6 0.7
QI 2020 65554.2 12000 248122.6 2977471764.0 2977.5 6.6 43169.3 812 163395.8 132677390.0 132.7 0.3
Q2 2020 65163.8 11700 246645.0 28857 4630 I.I 2885.7 6.4 37352.7 5870 141380.0 829900421.0 829.9 1.8
03 2020 56659.3 13800 214455.5 2959485216.9 2959.5 6.5 35628.2 5960 134852.7 803722312.5 803.7 1.8
Q4 2020 61323.9 10300 232111.0 2390742903.5 2390.7 5.3 46794.2 648 177116.0 114771198.5 114.8 0.3
01 2021 59907.4 9380 226749.5 2126910394.4 2126.9 4.7 38932.4 2970 147359.1 437656628.0 437.7 1.0
Q2 2021 58564.2 13000 221665.5 2881651461.0 2881.7 6.4 32865.2 2490 124394.8 309743007.2 309.7 0.7
Q3 2021 49987.5 10200 189202.7 1929867412.5 1929.9 4.3 31436.6 858 118987.5 102091301.6 102.1 0.2
Q4 2021 46649.1 14800 176566.8 2613189283.8 2613.2 5.8 42730.6 776 161735.3 125506609.1 125.5 0.3
QI 2022 42923.5 13700 162465.4 2225776630.8 2225.8 4.9 35550.2 724 134557.5 97419635.1 97.4 0.2
Q2 2022 41998.3 46800 158963.6 7439494865.4 7439.5 16.4 31354.2 982 118675.6 116539485.4 116.5 0.3
Q3 2022 39640.3 11600 150038.5 1740447011.8 1740.4 3.8 31305.9 843 118492.8 99889457.0 99.9 0.2
Q42022 43251.9 9640 163708.4 1578149376.1 1578.1 3.5 39072.6 1720 147889.8 254370440.5 254.4 0.6
Totals 2280329.1 --'296.0 1033 134.1 30.9
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-40 TW4-41
Total Total Total Total Total Total Total Total Total Volume
Quarter Pumped Cone Pumped Total (ug) Pumped Cone Pumped Total (ug) Total Pumped
(gal) (liters) (grams) (pounds) (gal) (liters) (grams) (pounds) (pounds) (gallons)
QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA 286.9 9648896.0
Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA 4.0 904550.0
Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA 9.0 559220.0
Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA 10.6 550560.0
QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA 13.8 503034.0
Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA 14.8 527290.0
Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA 26.8 724960.0
Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA 22.7 786870.0
QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA 10.0 664830.0
Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA 13.5 1007400.0
Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA 18.5 399710.0
04 2009 NA NA NA NA NA NA NA NA NA NA NA NA 49.4 1047335.0
QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA 4.5 492485.0
Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA 16.5 721374.1
Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA 10.6 376623.4
Q4 2010 NA NA NA NA NA NA NA NA NA NA NA NA 17.9 1041817.3
QI 2011 NA NA NA NA NA NA NA NA NA NA NA NA 24.9 696533.0
Q22011 NA NA NA NA NA NA NA NA NA NA NA NA 13.1 449131.1
Q3 2011 NA NA NA NA NA NA NA NA NA NA NA NA 8.1 462334.5
Q4 2011 NA NA NA NA NA NA NA NA NA NA NA NA 10.8 468706.3
QI 2012 NA NA NA NA NA NA NA NA NA NA NA NA 10.6 448486.3
Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA 10.4 400415.2
Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA 6.6 390229.0
Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA 7.1 358000.0
QI 2013 NA NA NA NA NA NA NA NA NA NA NA NA 13.7 634286.1
Q2 2013 NA NA NA NA NA NA NA NA NA NA NA NA 13.5 768953.4
Q3 2013 NA NA NA NA NA NA NA NA NA NA NA NA 31.1 950505.6
Q4 2013 NA NA NA NA NA NA NA NA NA NA NA NA 10.3 990119.8
QI 2014 NA NA NA NA NA NA NA NA NA NA NA NA 8.6 859297.5
02 2014 NA NA NA NA NA NA NA NA NA NA NA NA 9.9 838057.9
Q3 2014 NA NA NA NA NA NA NA NA NA NA NA NA 10.2 852987.2
Q4 2014 NA NA NA NA NA NA NA NA NA NA NA NA 14.6 673905.9
012015 NA NA NA NA NA NA NA NA NA NA NA NA 9.9 458271.4
Q22015 NA NA NA NA NA NA NA NA NA NA NA NA 15.3 539592.9
Q3 2015 NA NA NA NA NA NA NA NA NA NA NA NA 33.4 816299.8
04 2015 NA NA NA NA NA NA NA NA NA NA NA NA 32.3 847567.8
QI 2016 NA NA NA NA NA NA NA NA NA NA NA NA 30.6 819302.3
Q2 2016 NA NA NA NA NA NA NA NA NA NA NA NA 39.4 832418.9
03 2016 NA NA NA NA NA NA NA NA NA NA NA NA 24.7 686543.4
04 2016 NA NA NA NA NA NA NA NA NA NA NA NA 25.6 750667.4
QI 2017 NA NA NA NA NA NA NA NA NA NA NA NA 27.2 667899.1
Q2 2017 NA NA NA NA NA NA NA NA NA NA NA NA 19.6 657232.5
Q3 2017 NA NA NA NA NA NA NA NA NA NA NA NA 28.5 754250.1
Q4 2017 NA NA NA NA NA NA NA NA NA NA NA NA 16.9 841953.7
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pum_l)_ed
TW4-40 TW4-41
Total Total Total Total Total Total Total Total Total Total Volume
Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (pounds) Pumped
(gal) (liters) (gal) (liters) (gallons)
01 2018 NA NA NA NA NA NA NA NA NA NA NA NA 18.0 810330.4
Q2 2018 NA NA NA NA NA NA 73711.2 1400 278997 390595648.8 390.6 0.9 20.1 803034.5
Q3 2018 NA NA NA NA NA NA 44981.6 1390 170255 236654734.4 236.7 0.5 17.6 733435.6
Q4 2018 NA NA NA NA NA NA 35431.6 1320 134108 177023110.1 177.0 0.4 20.8 800443.6
QI 2019 NA NA NA NA NA NA 31904 1220 120755.1 147321253.7 147.3 0.3 16.2 811589.4
Q2 2019 81762.7 263 309471.8 81391088.5 81.4 0.18 25146.5 1320 95179.5 125636943.3 125.6 0.3 26.2 750139.6
Q3 2019 116414.2 380 440627.7 167438543.9 167.4 0.37 24045.6 1190 91012.6 108304989.2 108.3 0.2 18.3 794827.4
Q4 2019 108281.89 314 409847.0 128691943.4 128.7 0.28 21186.4 1410 80190.5 113068638.8 113.1 0.2 13.0 844887.9
QI 2020 102021.51 364 386151.4 140559115.2 140.6 0.31 17289.9 1200 65442.3 78530725.8 78.5 0.2 18.9 802209.2
Q2 2020 100757.13 367 381365.7 139961225.5 140.0 0.31 17294.9 1220 65461.1 79862567.4 79.9 0.2 25.2 910974.8
Q3 2020 86264.50 333 326511.1 108728207. 1 108.7 0.24 13411.4 1110 50762.3 56346111.4 56.3 0.1 13.4 766734.5
Q4 2020 77535.9 264 293473.5 77477002.7 77.5 0.17 17765.7 1020 67243.3 68588115.2 68.6 0.2 9.6 828651.4
Qi 2021 72543.4 436 274576.7 119715421.8 119.7 0.26 13407.5 1170 50747.3 59374310.5 59.4 0.1 16.8 759810.1
Q2 2021 66866.4 343 253089.3 86809638.1 86.8 0.19 13168.7 1130 49843.5 56323188.3 56.3 0.1 11.8 738065.6
Q3 2021 58841.0 301 222713.2 67036668.7 67.0 0.15 13821.0 I 100 52312.5 57543733.5 57.5 0.1 13.4 716109.4
Q4 2021 57357.9 286 217099.7 62090500.3 62.1 0.14 12449.1 1030 47119.8 48533438.8 48.5 0.1 16.1 753893.2
Ql 2022 53009.2 238 200639.8 47752277.6 47.8 0.11 12247.8 1030 46357.9 47748660.7 47.7 0.1 8.4 692614.3
Q2 2022 52135.2 323 197331.7 63738149.4 63.7 0.14 11013.9 1010 41687.6 42104487.6 42.1 0.1 21.8 680997.0
Q3 2022 45416.2 302 171900.4 51913918.6 51.9 0.11 11108.0 1060 42043.9 44566527.2 44.6 0.1 12.3 670819.9
Q42022 48263.2 298 182676.1 54437488.6 54.4 0.12 11722.6 1050 44369.9 46588384.1 46.6 0.1 15.0 743710.2
Totals 1127470.3 3.1 421106.9 4.4 1368.9 32518263.4
Table G-2
Chloroform Mass Removal Per Well Per Quarter
TW4-15
MW-4 (MW-26) TW4-19 TW4-20 TW4-4 TW4-22 TW4-24 TW4-25 TW4-01 TW4-02 TW4-11 TW4-21 TW4-37 TW4-39 TW4-40 TW4-41 Quarter
Quarter• (lbs.) (lbs.) (lbs.) (lbs.)** (lbs.) (lbs.) (lbs.) Obs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) Totals (lbs.)
QI 2007 36.8 12.9 150.2 87.0 NA NA NA NA NA NA NA NA NA NA NA NA 286.9
Q2 2007 1.4 0.1 0.0 2.5 NA NA NA NA NA NA NA NA NA NA NA NA 4.0
Q3 2007 2.2 0.8 2.9 3.1 NA NA NA NA NA NA NA NA NA NA NA NA 9.0
Q4 2007 1.7 1.0 3.1 4.8 NA NA NA NA NA NA NA NA NA NA NA NA 10.6
QI 2008 1.7 0.4 4.6 7.2 NA NA NA NA NA NA NA NA NA NA NA NA 13.8
02 2008 1.3 0.5 3.2 9.9 NA NA NA NA NA NA NA NA NA NA NA NA 14.8
03 2008 1.2 0.3 15.9 9.3 NA NA NA NA NA NA NA NA NA NA NA NA 26.8
Q42008 1.3 0.3 20.7 0.4 NA NA NA NA NA NA NA NA NA NA NA NA 22.7
QI 2009 1.7 0.4 4.3 3.6 NA NA NA NA NA NA NA NA NA NA NA NA 10.0
02 2009 6.8 0.2 3.7 2.8 NA NA NA NA NA NA NA NA NA NA NA NA 13.5
0 3 2009 1.5 0.4 11.1 5.5 NA NA NA NA NA NA NA NA NA NA NA NA 18.5
Q42009 4.8 0.6 l7.8 26.l NA NA NA NA NA NA NA NA NA NA NA NA 49.4
01 2010 0.9 0.4 2.7 0.4 NA NA NA NA NA NA NA NA NA NA NA NA 4.5
Q2 2010 1.5 1.0 6.8 5.9 1.4 NA NA NA NA NA NA NA NA NA NA NA 16.5
Q3 2010 1.3 1.2 2.0 4.9 1.3 NA NA NA NA NA NA NA NA NA NA NA 10.6
04 2010 I.I 0.5 7.7 7.4 1.2 NA NA NA NA NA NA NA NA NA NA NA 17.9
QI 2011 I.I 0.2 12.9 9.6 1.1 NA NA NA NA NA NA NA NA NA NA NA 24.9
Q22011 1.2 0.8 5.3 4.6 I.I NA NA NA NA NA NA NA NA NA NA NA 13.1
03 2011 1.2 0.4 1.1 4.) 1.2 NA NA NA NA NA NA NA NA NA NA NA 8.1
Q4201I 1.2 0.8 2.7 4.8 1.4 NA NA NA NA NA NA NA NA NA NA NA 10,8
QI 2012 I.I 0.6 0.8 7.0 1.0 NA NA NA NA NA NA NA NA NA NA NA 10.6
02 2012 1.1 0.7 0.7 6.9 I.I NA NA NA NA NA NA NA NA NA NA NA 10.4
Q3 2012 I.I 0.7 1.4 2.4 I.I NA NA NA NA NA NA NA NA NA NA NA 6.6
04 2012 0.9 0.3 2.0 3.2 0.8 NA NA NA NA NA NA NA NA NA NA NA 7.2
QI 2013 0.9 0.4 7.4 2.8 0.7 1.5 0.0 0.0 NA NA NA NA NA NA NA NA 13.7
02 2013 0.9 0.9 3.9 4.4 0.7 2.7 o.o 0.0 NA NA NA NA NA NA NA NA 13.5
03 2013 0.9 0.6 22.3 4.4 0.7 2.1 0.1 o.o NA NA NA NA NA NA NA NA 31.1
04 2013 0.8 0.3 3.2 2.5 0.7 2.8 0.1 0.0 NA NA NA NA NA NA NA NA 10.3
01 2014 0.8 0.3 1.5 2.8 0.6 2.5 0.2 0.0 NA NA NA NA NA NA NA NA 8.6
Q2 2014 0.8 0.4 2.0 3.4 0.6 2.5 0.1 0.0 NA NA NA NA NA NA NA NA 9.9
Q3 2014 0.9 0.4 3.6 1.8 0.8 2.5 0.1 0.0 NA NA NA NA NA NA NA NA 10.2
042014 0.8 0.4 7.1 3.2 0.6 2.5 0.04 0.0 NA NA NA NA NA NA NA NA 14.6
01 2015 0.9 0.4 2.4 2.6 0.4 2.3 0.04 0.0 0.23 0.37 0,20 NA NA NA NA NA 9.9
Q2 2015 0.7 0.5 1.0 2.8 0.7 1.6 0.00 0.0 0.25 0.30 0.12 0.09 7.4 NA NA NA 15.3
03 2015 1.0 0.4 7.6 2.5 0.7 1.6 0.03 0.0 0.21 0.24 0.03 0.29 18.8 NA NA NA 33.4
04 2015 1.0 0.4 7.4 2.2 0.6 1.5 0.02 0.0 0.18 0.38 0.09 0.38 18.2 NA NA NA 32.3
QI 2016 0.9 0.4 7.6 2.6 0.6 L2 O.Q2 0.0 0.16 0.34 0.08 0.41 16.3 NA NA NA 30.6
02 2016 1.3 0.4 13.0 4.4 0.9 l.9 0.04 0.0 0.19 0.36 0.10 0.60 16.1 NA NA NA 39.4
03 2016 1.0 0.5 5.2 2.4 0.6 I.I 0.01 0.0 0.15 0.26 0.08 0.42 l3.l NA NA NA 24.7
Q4 2016 1.0 0.4 5.8 2.3 0.4 0.7 0.017 0.0 0.19 0.26 0.08 0.47 14.0 0.1 NA NA 25.6
QI 2017 0.9 0.3 I.I 2.6 0.3 I.I 0,015 0.0 0.07 0.26 0.08 0.27 14.6 5.6 NA NA 27.2
Q2 2017 0.9 0.5 0.5 1.9 0.3 0.7 0.008 0.0 0.15 0.30 0.08 0.11 12.3 1.9 NA NA 19.6
03 2017 I.I 0.3 8.3 3.4 0.3 I.I 0.008 0.0 0.14 0.21 0.08 0.54 10.2 2.9 NA NA 28.5
Q4 2017 1.2 0.6 0.1 1.4 0.2 0.9 0.014 0.0 0.07 0.23 0.06 0.49 11.3 0.3 NA NA 16.9
01 2018 1.2 0.3 2.4 1.8 0.2 0.9 0.020 0.0 0.01 0.10 O.Q7 0.41 9.1 1.4 NA NA 18.0
Q22018 1.1 0.4 2,8 1.3 0.2 0.6 0.022 0.0 0,09 0,13 0.06 0.52 10.1 2.0 NA 0.9 20.1
03 2018 1.0 0.4 1.7 I.I 0.1 0.6 0.016 0.0 0.08 0.12 0.06 0.44 9.1 2.3 NA 0.5 17.6
04 2018 I.I 0.3 4.7 1.0 0.1 0.5 O.Ql8 0.0 0.06 0.11 0.06 0.59 9.7 2.0 NA 0.4 20.8
QI 2019 I.I 0.2 2.0 1.9 0.1 0.9 0.023 0.0 0.01 0.14 0.06 0.33 8.6 0.4 NA 0.3 16.2
02 2019 1.0 0.3 9.7 1.5 0.1 0.9 0.01 3 0.0 0.08 0.16 0.05 0.65 8.8 2.5 0.18 0.3 26.1
03 2019 0.9 0.3 5.6 1.2 0.1 0.7 0.014 0.0 O.Q7 0.09 0.05 0.5 6.7 1.3 0.37 0.2 18.3
042019 I.I 0.3 0.5 0.6 0.1 0.8 0.037 0.0 0.08 0.11 0.05 0.8 7.3 0.7 0.28 0.2 13.0
01 2020 1.1 0.2 7.0 I.I 0.1 0.8 0.044 0.0 0.09 0.21 0.05 0.8 6.6 0.3 0.31 0.2 18.9
TableG-2
Chloroform Mass Removal Per Well Per Quarter
TW4-15
MW-4 (MW-26) TW4-19 TW4-20 TW4-4 TW4-22 TW4-24 TW4-25 TW4-01 TW4-02 TW4-11 TW4-21 TW4-37 TW4-39 TW4-40 TW4-41 Quarter
Quarter* (lbs.) (lbs.) (lbs.) (lbs.)•• (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) Totals (lbs.)
02 2020 1.1 0.3 8.7 4.9 0.1 0.5 0.024 0.0 0.04 0.13 0.05 0.7 6.4 1.8 0.31 0.2 25.2
Q3 2020 0.9 0.2 1.7 0.0 0.1 0.7 0.028 0.0 0.08 0.15 0.05 0.8 6.5 1.8 0.24 0.1 13.4
Q42020 0.8 0.2 0.8 0.0 0.1 0.7 0.063 0.0 0.D7 0.14 0.03 0.8 5.3 0.3 0.17 0.2 9.6
01 2021 0.9 0.7 7.4 0.0 0.1 1.0 0.066 0.0 0.07 0.10 0.05 0.3 4.7 1.0 0.26 0.1 16.8
02 2021 1.0 0.2 1.0 0.0 0.1 0.9 0.019 0.0 0.D7 0.12 0.05 0.9 6.4 0.7 0.19 0.1 11.8
03 2021 0.9 0.4 5.9 0.0 0.1 0.7 0.046 0.0 0.06 0.12 0.03 0.5 4,3 0.2 0.15 0.1 13.4
0420.21 0,9 0.2 7.2 0.0 0.1 0.6 0.090 0.0 0.D7 0.09 0.04 0.6 5.8 0.3 0.14 0.1 16.1
QI 2022 0.8 0.3 0.6 0.0 0.1 0.6 0.070 0.0 0.07 0.10 0.03 0.4 4.9 0.2 0.11 0.1 8.4
02 2022 0.8 0.1 2.6 0.0 0.1 0.5 0.052 0.0 0.06 0.09 0,03 0.5 16.4 0.3 0.14 0.1 21.8
Q3 2022 0.8 0.1 5.4 0.0 0.1 0.6 0.043 0.0 0.07 0.08 0.D3 0.8 3.8 0.2 0.11 0.1 12.3
Q42022 0.9 0.3 8.5 0.0 0.1 0.4 0.067 0.0 0.D7 0.10 0.03 0.4 3.5 0.6 0.12 0.1 15.0
Well Totals 114.0 39.8 480.7 296.2 26.6 48.6 1.6 0.0 3.3 5.9 2.0 15.8 296.0 30.9 3.1 4.4 1368.9
• QI 2007 represents the cumulative total prior to and including QI 2007.
•• TW4-20 collapsed in August 2020 and was abandoned on October I, 2020
Table G-3 Well Pumping Rates and Volumes
Volume of Water Pumped
Pumping Well Name During the Quarter (gals) Average Pump Rate (gpm)
MW-4 91487.4 4.0
MW-26 29411.4 16.2
1W4-19 137474.5 16.2
1W4-4 8777.0 16.2
1WN-2 15606.0 15.9
1W4-22 22398.4 16.1
1W4-24 100289.8 15.3
1W4-25 95056.0 11.5
1W4-01 8450.8 13.3
1W4-02 12148.6 15.8
1W4-ll 1442.4 15.3
1W4-21 94463.6 16.4
1W4-37 43251.9 17.9
1W4-39 39072.6 18.0
1W4-40 48263.2 18.0
1W4-41 11722.6 6.0
Date MW-4 MW-26 TW4-19 TW4-4 TWN•2 TW4-22 TW4-24 TW4-25 TW4-01 TW4-02 TW4-11 TW4-21 TW4-37 TW4-39 TW4-40 TW4-41
10/3/2022 4,0 16,0 16.0 16.4 16.0 16.0 l0.6 13.0 15,0 15,8 16.2 18.0 18.0 18.0 18.0 6,0
10/10/2022 4.0 16.0 16.0 16,6 16,0 16.4 16,2 12.0 12.4 16.0 14.8 16.4 18.0 18.0 18.0 6.0
10/17/2022 4.0 16.0 16.0 16.2 16.2 16.0 16.4 10.8 12,8 15.4 15.6 16.4 18.0 18.0 18.,0 6.0
10/2412022 4,0 16.0 16.2 16.0 16,0 16.0 16.0 10.8 12.8 16.0 15.6 16.0 18.0 18,0 18,0 6.0
10/31/2022 4.0 17.4 17.8 16.0 14.8 16.6 16.0 10,8 12.8 13.8 14.8 16.0 17.4 18,0 18.0 6.0
11n12022 4.0 16.2 '6 16,2 16.0 16.0 10.8 12.8 16.2 16.2 14.8 16.4 18.0 18.0 18.0 6.0
11/15/2022 4.0 16.4 16.0 16.0 16.0 16.0 16.2 10.8 12.8 16.2 14.8 16.2 18.0 18,0 17.8 6,0
11/22/2022 4,0 16.4 16,2 16,4 16.0 16.2 16.0 10.8 12.8 16.2 16.0 16.4 18.0 18.0 18.0 6.0
11128/2022 4.0 16.0 16.0 16.0 15.8 16.0 16.2 12.0 12.8 15.4 16.0 16.0 17.8 18.0 18.0 6.0
12/5/2022 4.0 16.2 16.0 16.4 16.0 16.2 16.2 10.8 128 16.0 15,6 16.2 18.0 18.0 18.0 6.0
12/16/2022 4.0 16.0 16,0 15.6 16.0 16.0 16.2 1t o 12.8 16.0 14.8 16.2 18.0 18.0 17.6 6.0
12/,19/2022 4.0 16.4 16.0 17.0 16.0 16.0 16.2 10.8 13.6 16.0 15.4 16.4 17.6 18.0 18.0 6.0
12/27/2022 4.0 16.0 16,0 16.'I 16.2 15.8 16.0 12.0 12.8 16.0 14.8 16.4 17.6 18.0 18.0 6.0
A,•cmJ?c 4.0 16.2 16.2 16,2 15.9 16.1 15.3 I 1.5 13 3 15.8 15.3 16A 17.9 18.0 18.0 6.0
4.0 16.2 16.2 16.2 15.9 16.1 15,3 11.5 13.3 15,8 15,3 16.4 17.9 18,0 18.0 6.0
' " ''"'
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
MW-4 MW-26 (fonncrly TW4-15)
Total Total Pumped Total Total Total Total Pumped Quarter Pumped Cone Total (ug) Cone Total (ug) Total Total
(gal) (liters) (grams) (pounds) Pumped (gal) (liters) (grams) (pounds)
QI 2007 1307110 3370 4947411.4 l.66736+10 16673 36.8 930510 1660 3521980.4 5846487381 5846 12.9
Q2 2007 81230 2000 307455.6 614911100 615 1.4 54400 300 205904.0 61771200 62 0.1
QJ 2007 100700 2600 381149.5 990988700 991 2.2 72080 1400 272822.8 381951920 382 0.8
0 4 2007 90830 2300 343791.6 790720565 791 1.7 61750 2000 233723.8 467447500 467 1.0
QI 2008 83950 2400 317750.8 762601800 763 1.7 47780 930 180847.3 168187989 168 0.4
Q22008 62780 2500 237622.3 594055750 594 1.3 44840 1300 169719.4 220635220 221 0.5
03 2008 81400 1800 308099.0 554578200 555 1.2 61280 MO 231944.8 146125224 146 0.3
Q4 2008 91320 1700 345646.2 587598540 588 1.3 55700 630 210824.5 132819435 133 0.3
QI 2009 90710 2200 343337.4 755342'170 755 1.7 52970 950 200491.5 190466878 190 0.4
Q2 2009 450040 1800 1703401.4 3066122520 3066 6.8 58050 4 10 219719.3 90084892.5 90 0.2
Q3 2009 90420 2000 342239.7 684479400 684 1.5 57610 850 218053.9 185345773 185 0.4
Q4 2009 322380 1800 1220208.3 2196374940 2 196 4.8 61960 1100 234518.6 257970460 258 0.6
QI 2010 68125 1600 257853.1 412565000 413 0.9 61320 780 232096.2 181035036 181 0.4
Q2 2010 84005.33 2100 317960.2 667716366 668 1.5 60500 1900 228992.5 435085750 435 1.0
Q3 2010 79859.1 1900 302266.7 574306718 574 1.3 63850 2200 241672.3 531678950 532 1.2
Q4 2010 90042.2 1500 340809.7 511214591 511 I.I 60180 970 227781.3 220947861 221 0.5
QI 2011 76247.6 1700 288597.2 490615182 491 I.I 55130 450 208667.1 93900172.5 94 0.2
Q2 2011 85849.3 1700 324939.6 552397321 552 1.2 55800.6 1800 211205.3 380169488 380 0.8
Q3 2011 85327.7 1700 322965.3 549041-086 549 1.2 65618 720 248364.1 178822174 179 0.4
Q42011 89735.0 1600 339647.0 543435160 543 1.2 50191.3 1800 189974.1 341953327 342 0.8
Ql 2012 90376.4 1500 342074.7 51311201 I 513 1.1 31440.1 2400 119000.8 285601868 286 0.6
02 2012 90916.5 1400 344118.8 481766269 482 I.I 26701.2 3000 101064.1 303192353 303 0.7
03 2012 91607.0 1500 346732.5 520098743 520 1.1 25246 3100 95556.1 296223941 296 0.7
Q42012 78840.0 1300 298409.4 387932220 388 0.9 30797 1200 116566.6 139879974 140 0.3
QI 2013 62943.7 1670 238241.9 397863981 398 0.9 22650.7 2120 85732.9 181753747 182 0.4
Q2 2013 71187.3 1490 269443.9 401471456 401 0.9 25343.4 4030 95924.8 386576819 387 0.9
Q3 2013 72898.8 1520 275922.0 419401376 419 0.9 25763 2940 97513.0 286688088 287 0.6
Q4 2013 70340.4 1410 266238.4 375396164 375 0.8 24207.6 1410 91625.8 129192330 129 0.3
QI 2014 69833.8 1390 264320.9 367406097 367 0.8 23263.l 1400 88050.S 1?32711 67 123 0.3
Q2 2014 7 !934.9 1390 272273.6 378460299 378 0.8 23757.5 1960 89922.1 !76247390 176 0.4
Q3 20!4 74788.2 1490 283073.3 421779272 422 0.9 24052.4 2120 91076.2 193081510 193 0.4
Q42014 63093.0 1440 238807.0 343882087 344 0.8 21875.8 2090 82799.9 173051797 173 0.4
QI 2015 76454.3 1400 289379.5 405131336 405 0.9 24004.9 1980 90858.5 179899922 180 0.4
Q2 2015 60714.7 1300 229805.l 298746681 299 0.7 27804.6 1980 105240.4 208376014 208 0.5
Q3 2015 89520.8 1290 338836.2 437098734 437 1.0 21042.0 2350 79644.0 187163330 187 0.4
Q42015 99633.4 1200 377 112.4 452534903 453 1.0 19355.6 2680 73260.9 196339335 196 0.4
QI 2016 90882.1 1240 343988.7 426546048 427 0.9 19150.8 2650 72485.8 [920873 12 192 0.4
Q2 2016 96540.5 1580 365405.8 577341152 577 1.3 22105.7 2220 83670.1 185747565 186 0.4
03 2016 79786.4 1430 301991.5 431847879 432 1.0 17149.5 3190 64910.9 207065635 207 0.5
Q4 2016 85414.0 1470 323292.0 475239225 475 1.0 18541.6 2510 70180.0 176151690 176 0.4
Ql 2017 76642.3 1450 290()91.1 420632103 421 0.9 26107.0 1290 98815.0 127471344 127 0.3
Q220l7 72299.8 1430 273654.7 391326282 391 0.9 25921.8 2450 98114.0 240379332 240 0.5
03 2017 95349.3 1400 360897.1 505255941 505 1.1 27489.9 1230 104049.3 .127980604 128 0.3
Q4 2017 106679.8 1320 403783.0 532993617 533 1.2 26445.8 2570 100097.4 257250197 257 0.6
I 11 ,,
I {
Table G-1
Quarterly Calculation of Chlorofoml Removed and Total Volume of Water Pumped
MW-4 MW-26 (formerly TW4-15)
Total Total Pumped Total Total Total Total Pumped Quarter Pumped Cone Total (ug) Cone Total (ug) Total Total
(gal) (liters) (grams) (pounds) Pum pcd (gal) (liters) (grams) (pounds)
QJ 2018 10S060.4 1320 397653.6 524902770 525 1.2 27004.7 1210 102212.8 123677475 124 0.3
Q2 2018 101786.2 1240 385260.8 477723351 478 I.I 26654.7 1870 100888.0 188660634 189 0.4
Q32018 95480.5 1300 361393.7 46981 1800 470 1.0 25536.1 1680 96654.I 162378953 162 0.4
Q4 2018 102884.8 1330 389418.9 5179271 77 518 I.I 23791.3 1480 90050.1 133274104 133 0.3
QI 2019 111746.9 1190 422962.0 503324800 503 I. I 26798.5 1110 101432.3 112589878 113 0.2
022019 94540.7 1300 357836.5 465187514 465 1.0 24050.2 1280 91030.0 116518409 117 0.3
QJ 2019 95517.7 ll80 361534.5 426610704 427 0.9 24 181.1 1360 91525.5 124474630 124 0.3
04 2019 99220.8 1370 375550.9 514504705 515 I.I 22384.8 1390 84726.5 117769791 118 0.3
Ql 2020 102597.0 1230 388329.6 477645370 478 I. I 24 l07.0 I 100 91245.0 100369495 100 0.2
Q2 2020 101850.7 1250 385504.9 481881077 482 I.I 25418.4 1610 96208.6 154895917 155 0.3
Q3 2020 84607.8 1240 320240.6 397098342 397 0.9 23663.7 1130 89567.1 101210828 IOI 0.2
04 2020 91258.6 1050 345413.8 362684491 363 0.8 28934.5 866 109517.1 94841793.4 95 0.2
Q1 2021 93486.7 1150 353847.3 406924364 407 0.9 27898.0 3060 105593.9 323117426 323 0.7
Q2 2021 93252.4 1320 352960.3 465907641 466 1.0 29124.1 998 110234.7 110014249 110 0.2
Q3 2021 89693.5 1140 339489.9 387018483 387 0.9 27945.6 1580 105774.1 167123072 167 0.4
Q4 2021 95091.4 1100 359920.9 395913044 396 0.9 30045.3 826 113721.5 93933926.4 94 0.2
Qt 2022 96291.3 1040 364462.6 379041073 379 0.8 29113.3 1030 110193.8 l 13499656 113 0,3
0 2 2022 93554.5 1010 354103.8 357644820 358 0.8 29385.9 611 111225.6 67958860.8 68 0.1
Q3 2022 82718.6 1200 313089.9 375707881 376 0.8 28531.3 612 107991.0 66090473.9 66 0.1
Q4 2022 91487.4 1170 346279.8 405147421 405 0.9 29411.4 l040 111322.1 115775035 116 0.3
Toials 7372866.54 114.0 3145726.8 39.8
TableG-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-J9 TW4-20
Total Total Pumped Total Total Total Total Pumped Total Total Quarter Pumped Cone Total (ug) Cone Total (ug)
(gal) (liters) (grams) (pounds) Pumped (gal) (liters) (grams) (pounds)
01 2007 6768986 2660 25620612.0 68 150827947 68151 150.2 642290 16240 243 1067.7 3.9481E+I0 39481 87.0
02 2007 605400 8 2291439.0 18331512 18 0.0 163520 1800 618923.2 1114061760 1114 2.5
Q3 2007 316080 1100 1196362.8 1315999080 1316 2.9 70360 5200 266312.6 1384825520 1385 3.1
Q4 2007 334350 1100 1265514.8 1392066225 1392 3.1 63630 9000 240839.6 2167555950 2168 4,8
Ql 2008 304784 1800 1153607.4 2076493392 2076 4.6 66520 13000 251778.2 3273116600 3273 7.2
Q22008 3803 10 IOOO 1439473.4 1439473350 1439 3.2 39360 30000 148977.6 4469328000 4469 9.9
03 2008 529020 3600 2002340.7 7208426520 7208 15.9 53260 21000 20 1589.1 42333711 00 4233 9.3
Q4 2008 589620 4200 2231711.7 937318914'0 9373 20.7 50230 1000 1901 20.6 190120550 190 0.4
QI 2009 469100 1100 1775543.5 1953097850 1953 4.3 52050 8200 197009.3 l6l54758S0 1615 3.6
Q2 2009 450040 990 1703401.4 1686367386 1686 3.7 49270 6800 186487.0 1268111260 1268 2.8
Q3 2009 200650 6600 759460.3 5012437650 5012 II.I 51030 13000 193148.6 2510931150 2511 5.5
Q4 2009 454205 4700 1719 165.9 8080079848 8080 17.8 208790 15000 790270.2 1.l854E+l0 11854 26.1
Ql 2010 348550 940 1319261.8 1240106045 1240 2,7 14490 3500 54844.7 191956275 192 0.4
Q2 2010 453340 1800 1715891.9 3088605420 3089 6.8 39014.86 18000 147671.2 2658082412 2658 5.9
03 2010 116899.2 2000 442463.5 884926944 885 2.0 39098.3 15000 147987.1 2219805983 2220 4.9
0 4 2010 767970.5 1200 2906768.3 3488122011 3488 7.7 36752.5 24000 139108.2 3338597100 3339 7.4
QI 201 1 454607.9 3400 1720690.9 5850349065 5850 12.9 37187.5 31000 140754.7 4363395313 4363 9.6
02201 I 159238.9 4000 602719.2 24 10876946 2411 5.3 67907.7 8100 257030.6 2081948220 2082 4.6
03 2011 141542.6 970 535738.7 519666578.8 520 1.1 72311.2 6800 273697.9 1861145666 1861 4.1
Q4 2011 147647.2 2200 558844.7 12294-58234 1229 2.7 72089.3 7900 272858.0 2155578204 2156 4.8
QI 2012 148747 650 563007.4 365954806.8 366 0.8 76306 11000 288818.2 3177000310 3177 7.0
Q2 2012 172082.03 460 651330.5 299612022.4 300 0.7 22956.43 36000 86890.1 3128043152 3128 6.9
Q3 2012 171345 950 648540.8 616113783.8 616 1.4 22025 13000 83364.6 1083740125 1084 2.4
Q4 2012 156653 1500 592931.6 889397407 .5 889 2.0 20114 19000 76131.5 1446498310 1446 3.2
QI 2013 210908 4210 798286.8 3360787344 3361 7.4 18177 18500 68799.9 1272798983 1273 2.8
02 2013 226224 2070 856257.8 1772453729 1772 3.9 20252.4 26300 76655.3 2016035284 2016 4.4
Q3 2013 329460.1 8100 1247006.5 10100752476 10101 22.3 19731 26800 74681.8 2001473178 2001 4.4
Q4 2013 403974 942 1529041.6 1440357178 1440 3.2 19280.2 15700 72975.6 1145716245 1146 2.5
Ql 2014 304851 586 1153861.0 676162566.5 676 1.5 18781.6 17800 7 1088.4 1265372737 1265 2.8
02 2014 297660.0 810 1126643.1 9 12580911 913 2.0 18462.4 22100 69880.2 1544352066 1544 3.4
Q3 2014 309742.0 1410 1172373.5 16530!16593 1653 3.6 17237.9 12400 65245.5 809043599 809 1.8
Q4 2014 198331.0 4310 750682.8 3235443019 3235 7.1 16341.8 23300 6185'.l.7 1441191513 1441 3.2
012015 60553.0 4660 229193. l 1068039869 1068 2.4 15744.7 19900 59593.7 1185914421 1186 2.6
Q220l5 75102.8 1570 284264.1 446294633.9 446 1.0 18754.1 17600 70984.3 1249323126 1249 2.8
0 3 2015 116503.9 7860 440967.3 3466002675 3466 7.6 17657.3 17000 66832.9 I 136158969 1136 2.5
04 2015 112762.7 7840 426806.8 3346165465 3346 7.4 15547.4 17000 58846.9 1000397453 1000 2.2
QI 2016 116597.0 7780 441319.6 3433466838 3433 7.6 14353.5 21600 54328.0 1173484746 1173 2.6
Q2 2016 123768.0 12600 468461.9 5902619688 5903 13.0 15818.3 33700 59872.3 2017695347 2018 4.4
03 2016 l03609.0 6040 392160.1 2368646193 2369 5.2 12186.6 23600 46126.3 1088580232 1089 2.4
Q4 2016 1049 19.4 6640 3971 19.9 2636876329 2637 5.8 12879.6 21300 48749.3 1038359792 1038 2.3
QI 2017 110416.7 1240 417927.2 518229739.8 518 I.I 13552.8 23400 51297.3 1200357943 1200 2.6
02 2017 109943.0 510 416134.3 2122284 70.1 212 0.5 12475.3 18100 47219.0 854664090 855 1.9
Q3 2017 112626.4 8840 426290.9 3768411768 3768 8.3 14556.8 27600 55097.5 1520690669 1521 3.4
Q420l7 108891.2 129 412153.2 53167761.77 53 0.1 14271.0 11600 54015.7 626582526 627 1.4
,1 " ~ I
Table G-1
Quarterly Calculation of Chloroform Removed and Total_Volume of Water Pumped
TW4-l9 TW4-20
Total Total Pumped Total Total Total Total Pumped Total Total Quarter Pumped Cone Total (ug) Cone Total (ug)
(gal) (liters) (grams) (pounds) Pumped (gal) (liters) (grams) (pounds)
012018 109856.3 2640 415806.1 1097728092 1098 2.4 14258.4 15400 53968.0 831107878 831 1.8
Q2 2018 111271.4 2980 421162.2 1255063502 1255 2.8 13367.6 12000 50596.4 607156392 607 1.3
Q3 2018 105821.8 1910 400535.5 765022829.8 765 1.7 12443.6 10500 47099.0 494539773 495 1.1
Q4 2018 107197.4 5270 405742.2 213826 1178 2138 4.7 12841.1 9500 48603.5 461733494 462 1.0
QI 2019 116132.8 2050 439562.6 90 1103428.4 901 2.0 14623.9 15600 55351.5 863482799 863 1.9
Q2 2019 100704.0 11500 381164.6 4383393360 4383 9.7 13439.1 13700 50867.0 69687781 I 697 1.5
Q3 2019 101026.8 6670 382386.4 2550517541 2551 5.6 13787.0 10500 52183.8 547929848 548 1.2
Q4 2019 98806.8 551 373983.7 206065039.6 206 0.5 8317.69 8790 31482.5 276730794 277 0.6
QI 2020 96857.9 8720 366607.2 3196814361 3197 7.0 9505.05 14300 35976.6 514465584 514 I.I
Q2 2020 136619.7 7600 517105.6 3930002290 3930 8.7 100713.8 5800 381201.6 2210969393 2211 4.9
Q3 2020 154514.4 1350 584837.0 789529955.4 790 1.7 12476.2 Well collapsed and not sampled
Q42020 144512 .. 0 660 546977.9 361005427 .2 361 0.8 Well pluiuicd and abandoned
012021 133462.3 6660 505154.8 3364331005 3364 7.4 Well plugged and nbnndoncd
Q2 2021 151242.8 775 572454.0 44365 l 848.5 444 1.0 Well plugged and abandoned
Q3 2021 157632.4 4450 596638.6 2655041921 2655 5.9 Well plugged and nbandoncu
Q4 2021 124359.9 6950 470702.2 3271380439 3271 7.2 Well PIUJtl!.ed and abandoned
QI 2022 112209.2 654 424711.8 277761531.6 278 0.6 Well olu1?1:ed and abnnuoned
Q2 2022 123246.5 2540 466488.0 1184879526 1185 2.6 Well ohJJ!eed and abandoned
Q32022 137486.6 4750 520386.7 2471836850 2472 5.4 Well plugged and nbnndoncd
Q4 2022 137474.5 7380 52034 1.0 3840116451 3840 8.5 Well plugged and nbnndoned
'fatals 480.7 258.2397.89 ... 296.2
"
TableG-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-4 TW4-22
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters)
QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA
02 2009 NA NA NA NA NA NA NA NA NA NA NA NA
03 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA
02 2010 84513.9 2000 319885.1 639770223 640 1.4 NA NA NA NA NA NA
Q3 2010 76916.8 2100 291130.1 611373184.8 611 1.3 NA NA NA NA NA NA
Q4 2010 86872.1 1700 328810.9 558978527.5 559 1.2 NA NA NA NA NA NA
Ql 2011 73360.0 1800 277667.6 499801680 500 I.I NA NA NA NA NA NA
0 22011 80334.6 1700 304066.5 5169 I 2983.7 517 1.1 NA NA NA NA NA NA
Q3 2011 97535.0 1500 369170.0 553754962.5 554 1.2 NA NA NA NA NA NA
Q4 2011 109043.5 1500 412729.6 619094471.3 619 1.4 NA NA NA NA NA NA
QI 2012 101616.8 1200 384619.6 461543505.6 462 1.0 NA NA NA NA NA NA
Q2 2012 87759.J 1500 332168.2 498252290.3 498 I.I NA NA NA NA NA NA
Q32012 80006.0 1600 302822.7 484516336 485 I.I NA NA NA NA NA NA
04 2012 71596 1400 270990.9 379387204 379 0.8 NA NA NA NA NA NA
01 2013 58716 .8 1460 222243.'I 3244749.08.5 324 0.7 16677.4 i0600 63124.0 669113965.4 669.I 1.5
Q2 2013 65603.4 1330 248308.9 330250795.8 330 0.7 25523.2 12500 96605.3 1207566400.0 1207.6 2.7
03 2013 63515.4 1380 240405.8 331759988.8 332 0.7 25592.9 9640 96869.1 933818379.5 933.8 2.1
Q4 2013 60233.6 1360 227984.2 310058479.4 310 0.7 24952.2 13300 94444.1 1256106224.1 1256.1 2.8
Ql 2014 58992.9 1260 223288.I 281343039.4 281 0.6 24532.0 12100 92853.6 l 123528802.0 1123.5 2.5
Q2 2014 60235.3 1220 227990.6 278148544.8 278 0.6 24193.9 12400 9 l573.9 1135516502.6 1135.5 2.5
Q3 2014 69229.4 1320 262033.3 345883928.3 346 0.8 24610.9 12400 93152.3 1155087980.6 1155.1 2.5
Q4 2014 64422.6 1130 243839.5 27553868 l .3 276 0.6 23956.9 12400 90676.9 1 l24393144.6 11 24.4 2.5
QI 2015 36941.3 1350 139822.8 188760807.7 189 0.4 22046.9 12700 83447.5 1059783459.6 1059.8 2.3
Q2 2015 68162.8 1280 257996.2 330235133.4 330 0.7 23 191.6 8050 87780.2 706630658.3 706.6 l.6
Q3 2015 64333.0 1220 243500.4 297070494.1 297 0.7 24619.9 7810 93186.3 727785170.9 727.8 1.6
042015 59235.1 1190 224204.9 266803775.7 267 0.6 23657.6 7530 89544.0 674266440.5 674.3 1.5
QI 2016 57274.0 11 90 216782;1 257970687.1 258 0.6 24517.8 6070 92799.9 563295229.1 563.3 1.2
Q2 2016 61378.0 1780 2323 15.7 413521999.4 41 4 0.9 26506.3 8570 100326.3 859796780.9 859.8 1.9
03 2016 50104.2 1380 189644.4 261709267 .9 262 0.6 22144.1 5840 838 15.4 489482044.0 489.5 I.I
Q4 2016 31656.0 1430 119818.0 171339682.8 171 0.4 23646.8 3370 89503.1 301625575.1 301.6 0.7
QI 2017 23526.8 l290 89048.9 114873130 115 0.3 24066.2 5320 91090.6 48460 I 816.4 484.6 I.I
Q2 2017 23244.9 1290 87981.9 113496711 113 0.3 23685.0 3670 89647.7 329007150.8 329.0 0.7
Q3 2017 23937.3 1290 90602.7 116877457.8 117 0.3 24583.2 5150 93047.4 479194171.8 479.2 1.1
Q4 2017 22900.6 1120 86678.8 97080223.52 97 0.2 23779.6 4770 90005.8 429327599.2 429.3 0.9
I T!! •I JI! I I tc ti
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water PumQCd
TW4-4 TW4-22
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters)
01 2018 23103.4 1160 87446.4 101437788 IOI 0.2 23982.8 4530 90774.9 411210287.9 411.2 0.9
Q2 2018 18137.0 1050 68648.5 72080972.25 72 0.2 23256.6 3010 88026.2 264958955.3 265.0 0.6
032018 15366.0 1030 58160.3 59905119.3 60 0.1 21248.7 3600 80426.3 289534786.2 289.5 0.6
Q4 2018 15420.2 1140 58365.5 66536620.98 67 0.1 24171.0 2680 91487.2 245185789.8 245.2 0.5
Ql 2019 16655.0 1050 63039.2 66191133.75 66 0.1 26149.9 4310 98977.4 426592471.2 426.6 0.9
Q2 2019 14311.9 1070 54170.5 57962479.41 58 0.1 23073.1 4690 87331.7 409585595.6 409.6 0.9
Q3 2019 14520.0 989 54958.2 54353659.8 54 0.1 24711.7 3460 93533.8 323626894.4 323,6 0.7
Q42019 14399.8 1140 54503.2 62133697.02 62 0.1 24052.5 3820 91038.7 347767881.8 347.8 0.8
QI 2020 14439.2 1100 .54652.4 60117609.2 60 0.1 24746.1 3910 93664.0 366226195.0 366.2 0.8
Q2 2020 15347.0 1140 58088.4 66220770.3 66 0.1 25295.3 2530 95742.7 242229057.6 242.2 0.5
Q3 2020 14389.9 1110 54465.8 60457006.37 60 0.1 23050.6 3760 87246.5 328046919.0 328.0 0.7
Q4 2020 15061.5 979 57007.8 55810614.17 56 0.1 22866.1 3640 86548.2 315035406.1 315.0 0.7
QI 2021 13740.8 1130 52008.9 58770088.64 59 0.1 22605.6 5100 85562.2 436367199.6 436.4 1.0
02 2021 13425.7 1240 50816.3 63012180.38 63 0.1 22893.3 4520 86651.l 391663155.1 391.7 0.9
Q3 2021 12021.0 1100 45499.5 50049433.5 50 0.1 22272.5 3510 84301.4 295897957.9 295.9 0.7
Q4 2021 11401.1 950 43153.2 40995505.33 41 0.1 22667.3 '.3330 85795.7 285699782.6 285.7 0.6
QI 2022 10434.1 1010 39493, I 39887999 .19 40 0.1 22083.6 3320 83586.4 277506934.3 277.5 0.6
Q2 2022 11463.2 1110 43388.2 48160915.32 48 0.1 22489.0 2600 85120.9 221314249.0 221.3 0.5
03 2022 7928.5 1040 30009.4 31209747.4 31 0.1 21940.2 3190 83043.7 264909265.8 264.9 0.6
Q4 2022 8777.0 1030 33220.9 34217573.35 34 0.1 22398.4 2350 84777.9 199228168.4 199.2 0.4
Totals 2253539.5 .. 26.6 942438.7 48.6
. ,. .... , ,~ , .. ,, ftl
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-24 TW4-25
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) Pumped Cone Pumped Total (ug)
(gal) (liters) (grams) (pounds) (gal) (liters) (grams) (pounds)
Ql 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA
0 3 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA
0 4 2009 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2013 144842.6 5.7 548229.2 3124906.7 3.1 0.0 99369.9 0.0 376115.1 0.0 0.0 0.0
Q2 2013 187509.3 17.4 709722.7 12349175.0 12.3 0.0 147310.4 0.0 557569.9 0.0 0.0 0.0
Q3 2013 267703.5 21.8 1013257.7 22089018.9 22.1 0.1 145840.9 0.0 552007.8 0.0 0.0 0.0
Q4 2013 260555.3 32.5 986201.8 32051558.8 32.1 0.1 126576.5 0.0 479092.1 0.0 0.0 0.0
QI 2014 229063.9 78.5 867006.9 68060038.6 68.1 0.2 129979.2 0.0 491971.3 0.0 0.0 0.0
Q2 2014 216984.1 62.7 821284.8 51494558.1 51.5 0.1 124829.8 0.0 472480.8 0.0 0.0 0.0
Q3 2014 213652.5 76.3 808674.7 61701880.6 61.7 0.1 119663.9 0.0 452927.9 0.0 0.0 0.0
Q4 2014 178468.7 25.8 675504.0 17428004.0 17.4 0.04 107416.1 0.0 406569.9 0.0 0.0 0.0
Ql 2015 92449.3 49.2 349920.6 17216093.5 17.2 0.04 71452.4 0.0 270447.3 0.0 0.0 0.0
Q2 2015 62664.2 4.28 237184.0 1015147.5 1.0 0.002 91985.3 0.0 348164.4 0.0 0.0 0.0
Q3 2015 66313.2 46.9 250995.5 11771687.2 11.8 0.026 124137.1 0.0 469858.9 0.0 0.0 0.0
Q4 2015 107799.1 25.3 408019.6 10322895.7 10.3 0.023 116420.1 0.0 440650.1 0.0 0.0 0.0
QI 2016 100063.2 22.8 378739.2 8635254.0 8.6 0.019 115483.2 0.0 437103.9 0.0 0.0 0.0
Q2 2016 65233.6 69.6 246909.2 17184878.6 17.2 0.038 125606.0 0.0 475418.7 0.0 0.0 0.0
Q3 2016 51765.8 17.8 I 95933.6 3487617.2 3.5 0.008 104983.6 0.0 397362.9 0.0 0.0 0.0
04 2016 99522.5 20.8 376692.7 7835207.4 7.8 0.017 98681.2 0.0 373508.3 0.0 0.0 0.0
QI 2017 99117.4 18.3 375159.4 6865416.3 6.9 0.D15 161.2 1.15 610.1 701.7 0.0 0.0
02 2017 52808.7 17.2 199880.9 3437952.0 3.4 0.008 101617.2 0.0 384621.1 0.0 0.0 0.0
03 2017 55574.6 17.8 210349.9 3744227.5 3.7 0.008 124138.4 0.0 469863.8 0.0 0.0 0.0
Q4 2017 106021.4 16.0 401291.0 6420656.0 6.4 0.014 116731.9 0.0 441830.2 0.0 0.0 0.0
TableG-1
Quarterly Calculation of Chlorofonn Removed and Total Volume of Water Pumped
TW4-24 TW4-25
Total Total Total Total Total Total
Quarter Pumped Cone Pumped Total (ug} Pumped Cone Pnmped Total (ug} Total Total
(gal} (liters} (grams} (pounds) (gal} (liters} (grams} (pounds}
0 12018 96900.2 24.9 366767.3 9132504.7 9.1 0.020 116991.7 0.0 442813.6 0.0 0,0 0.0
Q2 2018 53117.9 49.2 20l05I.3 9891721.6 9.9 0.022 117758.3 0.0 445715.2 0.0 0.0 0.0
Q3 2018 53142.5 35.0 201 144.4 7040052.7 7.0 0.016 111657.5 0.0 422623.6 0.0 0.0 0.0
Q4 2018 101606.4 21.0 384580.3 8076185.5 8.1 0.018 114458.2 0.0 433224.3 0.0 0.0 0.0
QI 2019 97701.0 28.1 369798.3 10391331.8 10.4 0.023 90789.5 0.0 343638.3 0.0 0.0 0.0
Q2 2019 53197.3 28.8 201351.8 579893!.3 5.8 0.013 88302.0 0.0 334223.1 0.0 0.0 0.0
Q3 2019 54445.7 31.1 206077.0 6408993.9 6.4 0.014 87609.5 o.o 331602.0 0.0 0.0 0.0
Q4 2019 102211.02 43.3 386868.7 16751415.2 16.8 0.037 85928.53 0.0 325239.5 o.o 0.0 0.0
QI 2020 86344.38 61.7 326813.5 20164391.6 20.2 0.044 85049.47 0.0 321912.2 o.o 0.0 0.0
Q2 2020 57634.7 49.4 218147.3 10776478.6 10.8 0.024 90767.9 0.0 343556.6 0.0 0.0 0.0
Q3 2020 53316.l 63.8 201801.4 12874.93 1.8 12.9 0.028 83956.3 0.0 317774.6 0.0 0.0 0.0
Q4 2020 103987.2 72.6 393591 .6 28574746.7 28.6 0.063 86254.4 0.0 326472.7 0.0 0.0 0.0
Qt 2021 81891.2 96.2 309958.3 29817985.4 29.8 0.066 80272.2 0.0 303830.4 0.0 0.0 0.0
Q2202I 54377.9 41.2 205820.4 8479798.5 8.5 0.019 82692.8 0.0 31 2992.2 0.0 0.0 0.0
Q3 2021 53333.1 103.0 201865.8 20792175.7 20.8 0.046 82802.3 0.0 313406.7 0.0 0.0 0.0
Q42021 96534.8 112.0 365384.2 40923032.4 40.9 0.090 89361.5 0.0 338233.3 0.0 o.o 0.0
QJ 2022 7354-5.0 I 14.0 278367.8 31733932.1 31.7 0.070 92972.1 0.0 351899.4 0.0 0.0 0.0
Q22022 50341.7 124.0 190543.3 23627373.5 23.6 0.052 101724.9 o:o 385028.7 0.0 0.0 0.0
Q3 2022 58456.4 88.9 22 1257.7 19669806.3 19.7 0.043 98357.6 0.0 372283.7 0.0 0,0 0.0
Q4 2022 100289.8 79.5 379596.9 30177956.0 30.2 0.067 95056.0 0.0 359787 1 0.0 0.0 0.0
Totals 4140487.3 1.6 4075147.1 0.0
""
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-01 TW4-02
Total Total Total Total Total Total
Quarter Pumped Cone Pumped Total (ug) Pumped Cone Pumped Total (ug) Total Total
(gal) (liters) (grams) (pounds) (gal) (liters) (grams) (pounds)
QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA
02 2007 NA NA NA NA NA NA NA NA NA NA NA NA
032007 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q22008 NA NA NA NA NA NA NA NA NA NA NA NA
Q32008 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q22009 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q.12011 NA NA NA NA NA NA NA NA NA NA NA NA
Q210l1 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 20 11 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2011 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA
01 2013 NA NA NA NA NA NA NA NA NA NA NA NA
0 2 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2013 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2014 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2014 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2014 NA NA NA NA NA NA NA NA NA NA NA NA
Q42014 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2015 24569.2 1130 92994.4 105083696.9 105.1 0.23 24156.7 1840 91433.1 168236921.S 168.2 0.37
O220l5 23989.9 1260 90801.8 1144 I 0232.1 114.4 0.25 22029.9 1650 83383.2 137582233.0 137.6 0.30
Q320l5 23652.0 1060 89522.8 94894189.2 94.9 0.21 21586.9 1310 81706.4 107035405.6 107.0 0.24
Q4 201 5 20764.3 1040 78592.9 81736590.5 81.7 0.18 21769.8 2070 82398.7 170565294.5 170.6 0.38
0 1 2016 19255.6 974 72882.4 70987502.4 71.0 0.16 20944.6 1970 79275.3 156172362.7 156.2 0.34
Q2 2016 19588.2 1140 74141.3 84521124.2 84.5 0.19 20624.0 2070 78061.8 161588008.8 161.6 0.36
03 2016 15613.5 1160 59097.1 68552633.1 68.6 0.15 17487.4 1780 66189.8 117817860.0 117.8 0.26
Q4 2016 16756.8 1330 63424.5 84354569.0 84.4 0.19 19740.6 1600 74718.2 119549073.6 119.5 0.26
Ql 2017 16931.8 519 64086.9 3326108 1.9 33.3 0.07 19869.7 1570 75206.8 I 18074698.8 l 18.l 0.26
Q2 2017 18200.2 977 68887.8 67303338.6 67.3 0.15 18716.7 1940 70842.7 137434856.4 137.4 0.30
Q3 2017 17413.6 958 65910.5 63142236.0 63.1 0.14 19338.8 1310 73197.4 95888539.0 95.9 0.21
Q4 2017 14089.8 556 53329.9 29651420.S 29.7 O.Q7 17327.6 1610 65585.0 105591795.3 105.6 0.23
~ IIMf
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumrcd
TW4-01 TW4-02
Total Total Total Total Total Total
Quarter Pumped Cone Pumped Total (ug) Pumped Cone Pumped Total (ug) Total Total
(gal) (liters) (grams) (pounds) (gal) (liters) (grams) (pounds)
012018 12505.7 70.4 47334.1 3332318.8 3.3 o.oi 16232.3 764 61439.3 46939591.2 46.9 0.10
Q2 2018 10814.8 942 40934.0 38559845.0 38.6 0.09 16051.4 949 60754.5 57656067.0 57.7 0.13
Q3 2018 9727.3 1010 36817.8 37186008.8 37.2 0.08 14927.2 980 56499.5 55369463.0 55.4 0.12
Q4 2018 9836.7 752 37231.9 27998395.9 28.0 0.06 15464. l 822 58531.6 48112990.4 48.1 0.11
Ql 2019 10603.6 87.2 40134.6 3499739.4 3.50 0.01 16169.9 1040.0 61203.1 63651194.4 63.65 0.14
Q2 2019 9393.9 1040.0 35555.9 36978148.0 36.98 0.08 13893.7 1360.0 52587.7 71519210.1 71.52 0.16
Q3 2019 9734.1 894 36843.6 32938150.2 32.94 0.07 14106.9 797 53394.6 42555509.4 42.56 0.09
04 2019 9184.3 1070 34762.6 37195955.8 37.20 0.08 14220.9 934 53826.1 50273583.5 50.27 0.11
QI 2020 8796.7 1190 33295.5 39621656.3 39.62 0.09 13162.1 1880 49818.5 93658871.2 93.66 0.21
Q2 2020 9600.2 499 36336.8 18132041.7 18.13 0.04 14155.6 1070 53578.9 57329472.2 57.33 0.13
Q3 2020 9487.3 1060 35909.4 38063996.3 38.06 0.08 14009.5 1260 53026.0 66812706.5 66.81 0.15
Q4 2020 9318.7 924 35271.3 32590662.3 32.59 0.07 14582.9 1130 55196.3 62371792.4 62.37 0.14
Ql 2021 9066.4 948 34316.3 32531875.2 32.53 0.07 13189.6 939 49922.6 46877355.2 46.88 0.10
Q2 2021 8764.1 957 33172.1 31745717.4 31.75 0.D7 11975.9 1160 45328.8 52581386.5 52.58 0.12
Q3 2021 8677.2 821 32843.2 26964268.8 26.96 0.06 12694.5 1150 48048.7 55255984.9 55.26 0.12
Q4 2021 8873.4 957 33585.8 32141628.8 32.14 0.D7 12351.3 852 46749.7 39830719.3 39.83 0.09
QI 2022 8251.8 946 31233.1 29546477.6 29.55 0.07 11380.6 1020 43075.6 43937082.4 43.94 0.10
Q2 2022 7616.0 914 28826.6 26347475.8 26.35 0.06 11518.1 892 43596.0 38887639.6 38.89 0.09
Q3 2022 8512.1 954 32218.3 30736256.8 30.74 0.D7 10953.7 832 41459.8 34494515.7 34.49 0.08
Q4 2022 8450.8 1010 31986.3 32306140.8 32.31 0.07 12148.6 1030 45982.5 47361924.5 47.36 0.10
Totals 418040.0 3.3 516781.5 5.9
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-11 TW4-21
Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) Pumped Cone Pumped Total (ug) Total
(gal) (liters) (grams) (pounds) (gal) (liters) (grams) (pounds)
QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA
02 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA
042008 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA
02 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2010 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q22011 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2011 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2013 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2014 NA NA NA NA NA NA NA NA NA NA NA NA
02 2014 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2014 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2014 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2015 9898.7 2450 37466.6 91793119.8 91.8 0.20 NA NA NA NA NA NA
Q2 2015 5243.3 2710 19845.9 53782363.3 53.8 0.12 30743.7 366 116364.9 42589555.0 42.6 0.09
Q3 2015 3584.4 1120 13567.0 15194988.5 15.2 O.o3 125285.4 281 474205.2 133251672.2 133.3 . 0.29
Q4 2015 4110.3 2730 15557.5 42471935.4 42.5 0.09 134774.9 339 510123.0 172931695.8 172.9 0.38
012016 3676.2 2660 13914.4 37012349.2 37.0 0.08 125513.3 390 475067.8 185276457 .8 185.3 0.41
Q2 2016 3760.4 3340 14233.1 47538600.8 47.5 0.10 132248.7 545 500561.3 272805924.6 272.8 0.60
03 2016 2953.8 3200 11180.1 35776425.6 35.8 0.08 110381.9 456 417795.5 190514744.1 190.5 0.42
Q4 2016 3050.2 3180 11545.0 36713122.3 36.7 0.08 130311.3 434 493228.3 214061069 .4 214.1 0.47
QI 2017 2984.2 3310 11295.2 37387102.1 37.4 0.08 54333.5 598 205652.3 122980073.9 123.0 0.27
Q2 2017 2845.9 3370 10771.7 36300735.2 36.3 0.08 60969.7 224 230770.3 51692550.4 51.7 0.11
Q3 2017 2830.0 3290 10711.6 35240999.5 35.2 0.08 120116.2 537 454639.8 244141581.7 244.1 0.54
Q4 2017 2612.7 2880 9889.1 28480520.2 28.5 0.06 126492.5 466 478774.1 223108736.4 223.1 0.49
Table G-1
Quarterly Calculation of Chloroform Remov_ed and Total Volume of Water Pumped
TW4-11 TW4-21
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters)
012018 2571.0 3090 9731.2 30069516.2 30.1 0.07 I 17832.0 421 445994.1 187763524.5 187.8 0.41
Q2 2018 2513.5 2800 9513.6 26638073.0 26.6 0.06 116681.0 532 441637.6 234951195.2 235.0 0.52
Q3 2018 2170.2 3050 8214.2 25053331.4 25.J 0.06 I 10001.4 476 416355.3 198185122.3 198.2 0.44
Q4 2018 2379.5 2930 9006.4 26388774.0 26.4 0.06 121686.3 585 460582.8 269440914.0 269.4 0.59
QI 2019 2342.4 2820 8866.0 25002074.9 25.00 0.06 123264 323 466554.6 150697141.8 150.70 0.3
Q2 2019 2195.1 2970 8308.5 24676106.9 24.68 0.05 106893.6 734 404592.3 296970730.6 297.0 0.7
Q3 2019 2046.0 2790 7744.1 21606066.9 21.61 0.05 108132.9 596 409283.0 243932683.8 243.9 0.5
Q4 2019 1983.9 3250 7509.1 24404449.9 24.40 0.05 116167.55 794 439694.2 349117176.3 349.1 0.8
QI 2020 1947.4 2990 7370.9 22039017.9 22.04 0.05 106622.01 844 403564.3 340608275.8 340.6 0.8
Q2 2020 2003.9 2810 7584.8 21313179.8 21.31 0.05 110999.13 767 420131.7 322241019.3 322.2 0.7
Q3 2020 1784.1 3070 6752.8 20731152.8 20.73 0.05 99515.11 920 376664.7 346531516.0 346.5 0.8
Q4 2020 1394.6 2670 5278.6 14093757.9 14.09 0.03 107061.16 948 405226.5 384154713.1 384.2 0.8
Ql 2021 2195.1 2750 8308.5 22848455.3 22.85 0.05 97211.49 400 367945.5 147178195.9 147.2 0.3
Q2 2021 1694.5 3320 6413.7 21293425.9 21.29 0.05 97157.60 1130 367741.5 415547913.1 415.5 0.9
Q3 2021 1560.8 2600 5907.6 15359832.8 15.36 0.03 93390.40 669 353482.7 236479902.2 236.5 0.5
04 2021 1485.5 2850 5622.6 16024459.9 16.02 0.04 102535.00 649 388095.0 251873638.8 251.9 0.6
Ql 2022 1497.2 2780 5666.9 15753987.6 15.75 0.03 91105.40 469 344833.9 161727117.4 161.7 0.4
Q2 2022 1473.1 2550 5575.7 14217992.9 14.22 0.03 91682.50 657 347018.3 227990998.5 228.0 0.5
Q3 2022 1304.3 3020 4936.9 14909290.6 14.91 0.03 87160.0 1070 329900.7 352993763.5 353.0 0.8
Q4 2022 1442.4 2900 5459.5 15832503.6 15.83 0.03 94463.6 482 357544.6 I 72336503.2 172.3 0.4
Totals 85534.6 2.0 3250733.4 15.8
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-37 TW4-39
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters)
QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA
02 2008 NA NA NA NA NA NA NA NA NA NA NA NA
03 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q22009 NA NA NA NA NA NA NA NA NA NA NA NA
QJ 2009 NA NA NA NA NA NA NA NA NA NA NA NA
04 2009 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q I 2011 NA NA NA NA NA NA NA NA NA NA NA NA
022011 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2011 NA NA NA NA NA NA NA NA NA NA NA NA
04 2011 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2012 NA NA NA NA NA NA NA NA NA NA NA NA
0 2 2012 NA NA NA NA NA NA NA NA NA NA NA NA
03 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA
012013 NA NA NA NA NA NA NA NA NA NA NA NA
02 2013 NA NA NA NA NA NA NA NA NA NA NA NA
03 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2013 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2014 NA NA NA NA NA NA NA NA NA NA NA NA
02 2014 NA NA NA NA NA NA NA NA NA NA NA NA
03 2014 NA NA NA NA NA NA NA NA NA NA NA NA
04 2014 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2015 NA NA NA NA NA NA NA NA NA NA NA NA
022015 29206.0 30200 110544.7 3338450242.0 3338.5 7.4 NA NA NA NA NA NA
Q3 2015 118063.9 19100 446871.9 8535252554.7 8535.3 18.8 NA NA NA NA NA NA
04 2015 I 11737.5 19500 422926.4 8247065531.3 8247.1 18.2 NA NA NA NA NA NA
Qt 2016 111591.0 17500 422371 .9 7391508862.5 7391.5 16.3 NA NA NA NA NA NA
02 2016 119241.2 16200 4S1327.9 73115 I 2660.4 7311,5 16.1 NA NA NA NA NA NA
03 2016 98377.6 15900 372359 59205 I 1534.4 5920.5 13,1 NA NA NA NA NA NA
04 2016 101949.1 16400 385877 6328388433.4 6328.4 14.0 3598.3 2800 13620 38134783.4 38.l 0.1
QI 2017 97071,7 18000 367416 661349492! .0 6613.S 14.6 103117.8 6460 390301 2521343639.6 2521.3 5.56
Q2 2017 93191.3 15800 352729 5573119313.9 5573.1 12,3 41313.0 5560 156370 869415559.8 869.4 1.92
Q3 2017 81 749.3 15000 309421 4641316507.5 4641.3 10.2 34546.3 10000 130758 1307577455.0 1307.6 2.9
Q4 2017 87529.6 15500 331300 5135142808.0 5135.1 11.3 68180.2 552 258062 I 42450255.5 142.5 0.3
"
Table G-1
Quartcrl_LCalculation of Chlorofonn Removed and Total Volume of Water Pumped
TW4-37 TW4-39
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters)
OJ 2018 84769.3 12900 320852 4138988226.5 4139.0 9.1 59262.2 2870 224307 6437623 I 5.5 643.8 1.4
02 2018 83653.1 14400 316627 4559428562.4 4559.4 IO.I 34259.8 7160 129673 928461135.9 928.5 2.0
Q320!8 77457.8 14100 293178 4133806599.3 4133.8 9.1 33473.4 8180 126697 1036379979.4 1036.4 2.3
Q4 2018 76271.4 15200 288687 4388046184.8 4388.0 9.7 37003.6 6520 140059 913182241.5 913.2 2.0
QI 2019 77591 13300 293683.4 3905989871.7 3906.0 8.6 49117 885 185907.5 164528107.9 164.5 0.4
Q2 2019 64950.1 16200 245836.1 3982545281.7 3982.5 8.8 34285.7 8640 129771.4 l 121224675.7 1121.2 2.5
Q3 2019 67572.0 11900 255760.0 3043544238.0 3043.5 6.7 36976.2 4240 139954.9 593408848.1 593.4 1.3
Q4 2019 66732.4 13100 252582.1 3308825955.4 3308.8 7.3 51808.6 1650 196095.6 323557659.2 323.6 0.7
QI 2020 65554.2 12000 248122.6 2977471764.0 2977.5 6.6 43169.3 812 163395.8 132677390.0 132.7 0.3
Q2 2020 65163.8 11700 246645.0 2885746301.1 2885.7 6.4 37352.7 5870 141380.0 829900421.0 829.9 1.8
Q3 2020 56659.3 13800 214455.5 2959485216.9 2959.5 6.5 35628.2 5960 134852.7 803722312.5 803.7 1.8
Q4 2020 61323.9 10300 232111.0 2390742903.5 2390.7 5.3 46794.2 648 177116.0 114771198.5 I 14.8 0.3
QI 2021 59907.4 9380 226749.5 2126910394.4 2126.9 4.7 38932.4 2970 147359.1 437656628.0 437.7 1.0
Q2 2021 58564.2 13000 221665.5 2881651461.0 2881.7 6.4 32865.2 2490 124394.8 309743007 .2 309.7 0.7
Q3 2021 49987.5 10200 189202.7 1929867 412.5 1929.9 4.3 31436.6 858 118987 .5 102091301.6 102.1 0.2
Q4 2021 46649.1 14800 176566.8 2613189283.8 2613.2 5.8 42730.6 776 161735.3 125506609.1 125.5 0.3
Ql 2022 42923.5 13700 162465.4 2225776630.8 2225.8 4.9 35550.2 724 134557.5 97419635.1 97.4 0.2
Q2 2022 41998.3 46800 158963.6 7439494865.4 7439.5 16.4 31354.2 982 I 18675.6 116539485.4 116.5 0.3
Q3 2022 39640.3 11600 150038.5 1740447011.8 1740.4 3.8 31305.9 843 118492.8 99889457.0 99.9 0.2
Q4 2022 43251.9 9640 163708.4 1578149376.1 1578.1 3.5 39072.6 1720 147889.8 254370440.5 254.4 0.6
Totals 2280329.1 296.0 1033134.1 30.9
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-40 TW4-41
Total Total Total Total Total Total Total Total Total Total Volume
Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (pounds) Pumped
(gal) (liters) . (gal) (liters) (gallons)
01 2007 NA NA NA NA NA NA NA NA NA NA NA NA 286.9 9648896.0
Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA 4.0 904550.0
Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA 9.0 559220.0
04 2007 NA NA NA NA NA NA NA NA NA NA NA NA 10.6 550560.0
Ql 2008 NA NA NA NA NA NA NA NA NA NA NA NA 13.8 503034.0
Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA 14.8 527290.0
Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA 26.8 724960.0
Q42008 NA NA NA NA NA NA NA NA NA NA NA NA 22.7 786870.0
Ql 2009 NA NA NA NA NA NA NA NA NA NA NA NA 10.0 664830.0
Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA 13.5 1007400.0
03 2009 NA NA NA NA NA NA NA NA NA NA NA NA 18.5 399710.0
04 2009 NA NA NA NA NA NA NA NA NA NA NA NA 49.4 1047335.0
Ql 2010 NA NA NA NA NA NA NA NA NA NA NA NA 4.5 492485.0
Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA 16.5 721374.1
Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA 10.6 376623.4
04 2010 NA NA NA NA NA NA NA NA NA NA NA NA 17.9 1041817.3
Ql 2011 NA NA NA NA NA NA NA NA NA NA NA NA 24.9 696533.0
Q22011 NA NA NA NA NA NA NA NA NA NA NA NA 13.1 449131.1
Q3 2011 NA NA NA NA NA NA NA NA NA NA NA NA 8.1 462334.5
Q4 2011 NA NA NA NA NA NA NA NA NA NA NA NA 10.8 468706.3
Ql 2012 NA NA NA NA NA NA NA NA NA NA NA NA 10.6 448486.3
Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA 10.4 400415.2
Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA 6.6 390229.0
Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA 7.1 358000.0
QI 2013 NA NA NA NA NA NA NA NA NA NA NA NA 13.7 634286.1
Q2 2013 NA NA NA NA NA NA NA NA NA NA NA NA 13.5 768953.4
03 2013 NA NA NA NA NA NA NA NA NA NA NA NA 31.1 950505.6
Q4 2013 NA NA NA NA NA NA NA NA NA NA NA NA 10.3 990119.8
QI 2014 NA NA NA NA NA NA NA NA NA NA NA NA 8.6 859297.5
Q2 2014 NA NA NA NA NA NA NA NA NA NA NA NA 9.9 838057.9
Q3 2014 NA NA NA NA NA NA NA NA NA NA NA NA 10.2 852987.2
Q4 2014 NA NA NA NA NA NA NA NA NA NA NA NA 14.6 673905.9
012015 NA NA NA NA NA NA NA NA NA NA NA NA 9.9 458271.4
Q22015 NA NA NA NA NA NA NA NA NA NA NA NA 15.3 539592.9
Q3 2015 NA NA NA NA NA NA NA NA NA NA NA NA 33.4 816299.8
Q4 2015 NA NA NA NA NA NA NA NA NA NA NA NA 32.3 847567.8
Ql 2016 NA NA NA NA NA NA NA NA NA NA NA NA 30.6 819302.3
Q2 2016 NA NA NA NA NA NA NA NA NA NA NA NA 39.4 832418.9
03 2016 NA NA NA NA NA NA NA NA NA NA NA NA 24.7 686543.4
Q4 2016 NA NA NA NA NA NA NA NA NA NA NA NA 25.6 750667.4
Ql 2017 NA NA NA NA NA NA NA NA NA NA NA NA 27.2 667899.1
Q2 2017 NA NA NA NA NA NA NA NA NA NA NA NA 19.6 657232.5
Q3 2017 NA NA NA NA NA NA NA NA NA NA NA NA 28.5 754250.1
Q4 2017 NA NA NA NA NA NA NA NA NA NA NA NA 16.9 841953.7
Table G-1
Quarter!}' Calculation of C~loroform Removed and Total Volume of Water Pumped
TW4-40 TW4-41
Total Total Total Total Total Total Total Total Total Total Volume
Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (pounds) Pumped
(gal) (liters) (gal) (liters) (gallons)
012018 NA NA NA NA NA NA NA NA NA NA NA NA 18.0 810330.4
Q2 2018 NA NA NA NA NA NA 73711.2 1400 278997 390595648.8 390.6 0.9 20.1 803034.5
Q3 2018 NA NA NA NA NA NA 44981.6 1390 170255 236654734.4 236.7 0.5 17.6 733435.6
Q4 2018 NA NA NA NA NA NA 35431.6 1320 134108 177023110.1 177.0 0.4 20.8 800443.6
QI 2019 NA NA NA NA NA NA 31904 1220 120755.1 147321253.7 147.3 0.3 16.2 811589.4
Q2 2019 81762.7 263 309471.8 81391088.5 81.4 0.18 25146.5 1320 95179.5 125636943.3 125.6 0.3 26.2 750139.6
Q3 2019 116414.2 380 440627.7 167438543.9 167.4 0.37 24045.6 1190 91012.6 108304989.2 108.3 0.2 18.3 794827.4
Q4 2019 108281.89 314 409847.0 128691943.4 128.7 0.28 21186.4 1410 80190.5 113068638.8 I 13.1 0.2 13.0 844887.9
QI 2020 102021.51 364 386151.4 140559115.2 140.6 0.31 17289.9 1200 65442.3 78530725.8 78.5 0.2 18.9 802209.2
Q2 2020 100757.13 367 381365.7 139961225.5 140.0 0.31 17294.9 1220 65461.1 79862567.4 79.9 0.2 25.2 910974.8
Q3 2020 86264.50 333 326511.1 108728207. I 108.7 0.24 13411.4 1110 50762.3 56346111.4 56.3 0.1 13.4 766734.5
04 2020 77535.9 264 293473.5 77477002.7 77.5 0.17 17765.7 1020 67243.3 68588115.2 68.6 0.2 9.6 828651.4
QI 2021 72543.4 436 274576.7 119715421.8 119.7 0.26 13407.5 1170 50747.3 59374310.5 59.4 0.1 16.8 759810.1
Q2 2021 66866.4 343 253089.3 86809638.1 86.8 0.19 13168.7 1130 49843.5 56323188.3 56.3 0.1 11.8 738065.6
Q3 2021 58841.0 301 222713.2 67036668.7 67.0 0.15 13821.0 1100 52312.5 57543733.5 57.5 0.1 13.4 716109.4
Q4 2021 57357.9 286 217099.7 62090500.3 62.1 0.14 12449.1 1030 47119.8 48533438.8 48.5 0.1 16.1 753893.2
QI 2022 53009.2 238 200639.8 47752277.6 47.8 0.11 12247.8 1030 46357.9 47748660.7 47.7 0.1 8.4 692614.3
Q2 2022 52135.2 323 197331.7 63738149.4 63.7 0.14 11013.9 1010 41687.6 42104487.6 42.1 0.1 21.8 680997.0
Q3 2022 45416.2 302 171900.4 51913918.6 51.9 0.11 11108.0 1060 42043.9 44566527.2 44.6 0.1 12.3 670819.9
Q4 2022 48263.2 298 182676.1 54437488.6 54.4 0.12 11722.6 1050 44369.9 46588384.1 46.6 0.1 15.0 743710.2
Totals 11 27470.3 3.1 4211 06.9 4.4 1368.9 32518263.4
Table G-3 Well Pumping Rates and Volumes
Volume of Water Pumped
Pumping Well Name During the Quarter (gals) Average Pump Rate (gpm)
MW-4 91487.4 4.0
MW-26 29411.4 16.2
TW4-19 137474.5 16.2
TW4-4 8777.0 16.2
TWN-2 15606.0 15.9
TW4-22 22398.4 16.1
TW4-24 100289.8 15.3
TW4-25 95056.0 11.5
TW4-01 8450.8 13.3
TW4-02 12148.6 15.8
TW4-11 1442.4 15.3
TW4-21 94463.6 16.4
TW4-37 43251.9 17.9
TW4-39 39072.6 18.0
TW4-40 48263.2 18.0
TW4-41 11722.6 6.0
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81 ~gg~ ~. I I i i i • I I
03 2007
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03 2009
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01 2010
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01 2012
02 2012
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02 2015
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01 2016
02 2016
03 2016
04 2016
01 2017
02 2017
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01 2018
02 2018
03 2018
04 2018
01 2019
02 2019
03 2019
04 2019
01 2020
02 2020
03 2020
04 2020
01 2021
02 2021
03 2021
04 2021
01 2022
02 2022
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n 01 2008 c:: a 02 2008 c:: 03 2008 ;--
:;::t. 04 2008 < 01 2009 C1> .... 02 2009 0 .... e:.. 03 2009 'O 04 2009 ::l. 0 01 2010 ...
0 02 2010
I» 03 2010 =1 0.. 04 2010 5· 01 2011 n i: 02 2011 0.. 03 2011 5·
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01 2013
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03 2013
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01 2014
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01 2016
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04 2016
01 2017
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02 2012
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01 2013
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01 2015
02 2015
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01 2016
02 2016
03 2016
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01 2017
02 2017
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01 2019
02 2019
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01 2020
02 2020
03 2020
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01 2021
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03 2007
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01 2012
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02 2013
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04 2016
01 2017
02 2017
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02 2019 03 2019
04 2019 01 2020
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01 2021
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01 2017
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02 2019
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TabH
Laboratory Analytical Reports
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com CHEMTECH·FORD Serving the lntermountain West Since 1953
Lf,60R,\TORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: MW-04_11302022
Matrix: Water
Date Sampled: 11/30/22 9:45
lnorg,mic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organil' Compountls
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
35.9
4.05
< 1.0
1170
< 1.0
< 1.0
oject Name: 4th Quarter Chloroform 2022
vw. Chem tech Ford. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
100
1.0
1.0
PO#:
Receipt: 12/2/22 14:10@ -1.2 °C
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D 15030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0202
Pre para lion
Oate/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Lab ID: 22L0202-11
Analysis
Date/Time
12/6/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Page 13 of 32
:
i
I C hemtech-F ord Laboratories
9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com CHEMTECH-FORD Serving the lntermountain West Since 1953
LA80RAT0?.1ES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-01_11302022
Matrix: Water
Date Sampled: 11/30/22 9:52
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"olatilc Org1111ic Compounds
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
38.2
3.62
< 1.0
1010
< 1.0
< 1.0
roject Name: 4th Quarter Chloroform 2022
ww. Chem tech Ford. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
100
1.0
1.0
PO#:
Receipt: 12/2/22 14:10@ -1.2 °C
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0202
Prep a ration
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Lab ID: 22L0202-07
Analysis
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
.fu.g{fil
Page 9 of 32
:
I C hemtech-F ord Laboratories
9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com CHEMTECH·FORD Serving the lntermountain West Since 1953
LA80RATOIIIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-02_11302022
Matrix: Water
Date Sampled: 11/30/22 9:36
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\ olatilc Organic Compounds
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
Result
35.5
3.74
< 1.0
1030
< 1.0
< 1.0
Project Name: 4th Quarter Chloroform 2022
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
100
1.0
1.0
PO#:
Receipt: 12/2/22 14:10@ -1.2 °C
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0202
Preparation
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Lab ID: 22L0202-05
Analysis
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
f!!Wl
Page 7 of 32
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD LABORArORu:s
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-03_12072022
Matrix: Water
Date Sampled: 12/7/22 7:34
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
21.5
6.64
< 1.0
< 1.0
< 1.0
< 1.0
'roiect Name: 4th Quarter Chloroform 2022
vww. ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.200
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 °C
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/14/22
12/13/22
12/12/22
12/12/22
12/12/22
12/12/22
Lab ID: 22L0766-03
Analysis
Date/Time
12/14/22
12/15/22
12/12/22
12/12/22
12/12/22
12/12/22
J-LOW-L
Page 5 of 41
:
...
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www. Chem tech Ford. com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
lABOAA'rORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-03R_12062022
Matrix: Water
Date Sampled: 12/6/22 7:35
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"olatilc Organic Compounds
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
< 1.00
< 0.100
< 1.0
< 1.0
< 1.0
< 1.0
roiect Name: 4th Quarter Chloroform 2022
ww. ChemtechFord. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54 @ 3.8 °C
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/12/22
12/13/22
12/12/22
12/12/22
12/12/22
12/12/22
Lab ID: 22L0766-01
Analysis
Date/Time
12/12/22
12/15/22
12/12/22
12/12/22
12/12/22
12/12/22
.El.!!Jrul
J-LOW-L
Page 3 of 41
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www. Chem tech Ford. com CHEMTECH·FORD Serving the lntermountain West Since 1953
l/~60R.\TORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-04_11302022
Matrix: Water
Date Sampled: 11/30/22 10:07
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Yolatilc Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
29.6
6.59
< 1.0
1030
< 1.0
< 1.0
Project Name: 4th Quarter Chloroform 2022
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.200
1.0
100
1.0
1.0
PO#:
Receipt: 12/2/22 14:10@ -1.2 °C
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
EPA 8260D /5030A
CtF WO#: 22L0202
Preparation
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Lab ID: 22L0202-08
Analysis
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
fug{fil
Page 10 of 32
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH·FORD LAB0HA1'0RIE$
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-05_12082022
Matrix: Water
Date Sampled: 12/8/22 8:45
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
Result
51.8
7.54
< 1.0
7.6
< 1.0
< 1.0
'roiecl Name: 4th Quarter Chloroform 2022
'WW. ChemtechFord.com
Units
rng/L
rng/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
2.40
l.O
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 °C
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 82600 /5030A
EPA 8260015030A
EPA 82600 /5030A
EPA 82600 /5030A
CtF WO#: 22L0766
Preparation
DatefTime
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
Lab ID: 22L0766-22
Analysis
Date/Time
12/14/22
12/15/22
12/13/22
12/13/22
12/13/22
12/13/22
fugffil
J-LOW-L
Page 24 of 41
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD lABOJ1AfOR1es
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-06_12082022
Matrix: Water
Date Sampled: 12/8/22 8:17
lnoq~anic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organir Compound~
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
40.7
0.134
< 1.0
1.5
< 1.0
< 1.0
>roiect Name: 4th Quarter Chloroform 2022
!WW. ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 °C
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
Lab ID: 22L0766-19
Analysis
Date/Time
12/13/22
12/15/22
12/13/22
12/13/22
12/13/22
12/13/22
E!.!!.ml
J-LOW-L
Page 21 of 41
Ir
:
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www. Chem tech Ford. com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LAEIOSIA'l'ORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-07_12092022
Matrix: Water
Date Sampled: 12/9/22 12:30
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\'olatile Organir Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
44.8
4.06
< 1.0
824
< 1.0
< 1.0
Proiect Name: 4th Quarter Chloroform 2022
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
100
1.0
1.0
PO#:
Receipt: 12/14/22 12:40@ 0.0 °C
Date Reported: 1/3/2023
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D 15030A
EPA 8260D 15030A
EPA 8260D 15030A
CtF WO#: 22L 1102
Preparation
Date/Time
12/28/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
Lab ID: 22L1102-07
Analysis
Date/Time
12/29/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
.El..!!lilll
J-LOW-L
Page 9 of 20
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
!.ABO~ATORll:S
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-08_12082022
Matrix: Water
Date Sampled: 12/8/22 8:53
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\'olatilc Organic Compoun<ls
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
Result
50.8
0.654
< 1.0
4.4
< 1.0
< 1.0
Proiect Name: 4th Quarter Chloroform 2022
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 °C
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 82600 /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
Lab ID: 22L0766-23
Analysis
Date/Time
12/14/22
12/14/22
12/13/22
12/13/22
12/13/22
12/13/22
~
J-LOW-L
Page 25 of 41
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
lABORATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-09_12082022
Matrix: Water
Date Sampled: 12/8/22 8:36
Inorganic
Chloride
Nitrate + Nitrite, Total, as N
\'olatilc Organil' Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
33.2
0.676
< 1.0
6.7
< 1.0
< 1.0
Proiect Name: 4th Quarter Chloroform 2022
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 ·c
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
Lab ID: 22L0766-21
Analysis
Date/Time
12/14/22
12/14/22
12/13/22
12/13/22
12/13/22
12/13/22
fugffil
J-LOW-L
Page 23 of41
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD LABOkAfO~ll:S
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-10_12092022
Matrix: Water
Date Sampled: 12/9/22 11:58
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
,·olatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
43.4
4.76
< 1.0
499
< 1.0
< 1.0
Jiect Name: 4th Quarter Chloroform 2022
w. ChemtechFord. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.200
1.0
100
1.0
1.0
PO#:
Receipt: 12/14/22 12:40@ 0.0 °C
Date Reported: 1/3/2023
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D 15030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L1102
Preparation
Date/Time
12/28/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
Lab ID: 22L1102-05
Analysis
Date/Time
12/29/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
J-LOW-L
Page 7 of 20
!!
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com CHEMTECH·FORD Serving the lntermountain West Since 1953
Ll~BOR,,TORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-11_11302022
Matrix: Water
Date Sampled: 11/30/22 9:30
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volalilc Organii: Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
36.6
7.05
< 1.0
2900
< 1.0
< 1.0
-roject Name: 4th Quarter Chloroform 2022
ww. ChemtechFord. com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.500
1.0
100
1.0
1.0
PO#:
Receipt: 12/2/22 14:10@ -1.2 ·c
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0202
Preparation
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Lab ID: 22L0202-12
Analysis
Date/Time
12/6/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
fulill.l
Page 14 of 32
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LABORATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-12_12072022
Matrix: Water
Date Sampled: 12/7/22 7:55
Inorganic
Chloride
Nitrate + Nitrite, Total, as N
\"olatilc Organic Compounds
Carbon Tetrachloride
Chlorofom1
Chloromethane
Methylene Chloride
Result
49.2
4.68
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name: 4th Quarter Chloroform 2022
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.500
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 °C
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D 15030A
EPA 8260D 15030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/14/22
12/13/22
12/12/22
12/12/22
12/12/22
12/12/22
Lab ID: 22L0766-05
Analysis
Date/Time
12/14/22
12/15/22
12/12/22
12/12/22
12/12/22
12/12/22
J-LOW-L
Page 7 of41
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LABORATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-13_12072022
Matrix: Water
Date Sampled: 12/7/22 8:22
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"olatile Organic Cum pounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
56.9
4.87
< LO
< 1.0
< 1.0
< 1.0
roiect Name: 4th Quarter Chloroform 2022
ww. ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.200
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 °C
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/14/22
12/13/22
12/12/22
12/12/22
12/12/22
12/12/22
Lab ID: 22L0766-08
Analysis
Date/Time
12/14/22
12/15/22
12/12/22
12/12/22
12/12/22
12/12/22
J-LOW-L
Page 10 of 41
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LA80ffAT0RIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-14_12082022
Matrix: Water
Date Sampled: 12/8/22 8:00
'lnoqi;anic
Chloride
Nitrate+ Nitrite, Total, as N
\·olatilc Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
43.5
6.20
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name: 4th Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.200
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 °C
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
Lab ID: 22L0766-17
Analysis
Date/Time
12/13/22
12/15/22
12/13/22
12/13/22
12/13/22
12/13/22
.E!J!g{fil
J-LOW-L
Page 19 of 41
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com CHEMTECH·FORD Serving the lntermountain West Since 1953
L/\80 A"t0R1ES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: MW-26_11302022
Matrix: Water
Date Sampled: 11/30/22 9:22
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compouncl~
Carbon Tetrachloride
Chloroform
Chi oromethane
Methylene Chloride
Result
52.l
0.337
< 1.0
1040
< 1.0
< 1.0
roject Name: 4th Quarter Chloroform 2022
ww. ChemtechFord. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
100
1.0
1.0
PO#:
Receipt 12/2/22 14:10@ -1.2 °C
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 82600 /5030A
EPA 82600 15030A
EPA 82600 15030A
CtF WO#: 22L0202
Preparation
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Lab ID: 22L0202-04
Analysis
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
~
Page 6 of 32
c
:
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD !.ABORATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-16_12092022
Matrix: Water
Date Sampled: 12/9/22 11:45
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"ohttilc Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
91.0
4.75
< 1.0
152
< 1.0
< 1.0
Proiect Name: 4th Quarter Chloroform 2022
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.200
1.0
10.0
1.0
1.0
PO#:
Receipt: 12/14/22 12:40@ 0.0 °C
Date Reported: 1/3/2023
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
CtF WO#: 22L 1102
Preparation
Date/Time
12/28/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
Lab ID: 22L1102-04
Analysis
Date/Time
12/29/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
J-LOW-L
Page 6 of 20
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www. Chem tech Ford. com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LABOSIATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: MW-32_12082022
Matrix: Water
Date Sampled: 12/8122 12:10
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chlorofom1
Chloromethane
Methylene Chloride
35.1
< 0.100
< 1.0
< 1.0
< 1.0
< 1.0
>roiect Name: 4th Quarter Chloroform 2022
vww. ChemtechFord. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 °C
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
Lab ID: 22L0766-16
Analysis
Date/Time
12/13/22
12/15/22
12/13/22
12/13/22
12/13/22
12/13/22
J-LOW-L
Page 18 of 41
:
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORO
tABOMAl'ORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-18_12092022
Matrix: Water
Date Sampled: 12/9/22 10:35
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Oq:anic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
44.4
3.60
< 1.0
62.6
< 1.0
< 1.0
Proiect Name: 4th Quarter Chloroform 2022
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/14/22 12:40@ o.o °C
Date Reported: 1/3/2023
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
lli!!!.!!.!!
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L1102
Preparation
Date/Time
12/28/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
Lab ID: 22L1102-02
Analysis
Date/Time
12/29/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
.E!.J!g{fil_
J-LOW-L
Page 4 of 20
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com CHEMTECH·FORD Serving the lntermountain West Since 1953
Ll,60R4TO!HES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-19_11302022
Matrix: Water
Date Sampled: 11/30/22 8:20
lnorganil-
Chloride
Nitrate+ Nitrite, Total, as N
\ olatilc Organir ( ·0111po11111ls
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
129
3.58
8.0
7380
< 1.0
< 1.0
>ject Name: 4th Quarter Chloroform 2022
w. ChemtechFord.com
.J!.!!j
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
10.0
0.100
1.0
100
1.0
1.0
PO#:
Receipt: 12/2/22 14:10@ -1.2 °C
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Mctl1od
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0202
Preparation
Date/Time
12/7/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Lab ID: 22L0202-14
Analysis
Date/Time
12/8/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
f!.ruru.l
Page 16 of 32
=
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com CHEMTECH·FORD Serving the lntermountain West Since 1953
u~BORATOlllES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-21_11302022
Matrix: Water
Date Sampled: 11/30/22 8:35
lnorgitnic
Chloride
Nitrate+ Nitrite, Total, as N
\'nlatilc Orgm1ic Comrrnuntls
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
158
2.12
< 1.0
482
< 1.0
< 1.0
·oject Name: 4th Quarter Chloroform 2022
NW. ChemtechFord. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
10.0
0.500
1.0
100
1.0
1.0
PO#:
Receipt: 12/2/22 14:10@ -1.2 ·c
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0202
Preparation
Date/Time
12/6/22
1217/22
12/5/22
12/5/22
12/5/22
12/5/22
Lab ID: 22L0202-10
Analysis
Date/Time
12/7/22
12/7/22
12/5/22
12/5/22
I 2/5/22
12/5/22
Page 12 of 32
I Chemtech-Ford Laboratories
9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com CHEMTECH·FORD Serving the lntermountain West Since 1953
LABoq,,rORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-22_11302022
Matrix: Water
Date Sampled: 11/30/22 9:02
lnorganir
Chloride
Nitrate+ Nitrite, Total, as N
\'olatilc Oq,:anir ( ·om pounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
601
62.0
< 1.0
2350
< 1.0
1.6
'roject Name: 4th Quarter Chloroform 2022
rww. Chem tech Ford. com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
10.0
2.00
1.0
100
1.0
1.0
PO#:
Receipt: 12/2/22 14:10@ -1.2 °C
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0202
Preparation
Date/Time
12/7/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Lab ID: 22L0202-13
Analysis
Date/Time
12/8/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
.E!l!Jilll
Page 15 of 32
:
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LA80RAT0RIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-23_12072022
Matrix: Water
Date Sampled: 12/7/22 9:07
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"olatilc Organil' Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
47.5
<0.100
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name: 4th Quarter Chloroform 2022
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 °C
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
Lab ID: 22L0766-13
Analysis
Date/Time
12/13/22
12/15/22
12/13/22
12/13/22
12/13/22
12/13/22
Page 15 of 41
I Chemtech-Ford Laboratories
9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com CHEMTECH·FORD Serving the lntermountain West Since 1953
LA80RAT0 RI ES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-24_11302022
Matrix: Water
Date Sampled: 11/30/22 8:55
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\ olatilc Orgm1ic Compounds
Carbon Tetrachloride
Chloroform
Chi oromethane
Methylene Chloride
Result
972
27.6
< 1.0
79.5
< 1.0
< 1.0
Project Name: 4th Quarter Chloroform 2022
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
20.0
1.00
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/2/22 14:10@ -1.2 °C
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPAJOO.O
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0202
Preparation
Date/Time
12/6/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Lab ID: 22L0202-02
Analysis
Date/Time
12/7/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Page 4 of 32
Chemtech-Ford Laboratories
9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www. Chem tech Ford. com CHEMTECH·FORD Serving the lntermountain West Since 1953
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-25_11302022
Matrix: Water
Date Sampled: 11/30/22 8:45
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\'olatilc Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
67.2
1.47
< 1.0
< 1.0
< 1.0
< 1.0
)roject Name: 4th Quarter Chloroform 2022
vww. ChemtechFord. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/2/22 14:10@ -1.2 °C
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0202
Preparation
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Lab ID: 22L0202-01
Analysis
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
~
MS-Low
Page 3 of 32
:
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LABORATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-26_12092022
Matrix: Water
Date Sampled: 12/9/22 12:42
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"olatilc Organil' Compounds
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
32.7
10.4
< 1.0
890
< 1.0
< 1.0
·oiect Name: 4th Quarter Chloroform 2022
NW. ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.500
1.0
100
1.0
1.0
PO#:
Receipt: 12/14/22 12:40@ 0.0 °C
Date Reported: 1/3/2023
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L 1102
Preparation
Date/Time
12/28/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
Lab ID: 22L1102-08
Analysis
Date/Time
12/29/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
fug{fil
J-LOW-L
Page 10 of 20
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LABOHAfORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-27_12082022
Matrix: Water
Date Sampled: 12/8/22 8:26
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"olatilc Organic Compounds
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
16.2
18.1
< 1.0
2.3
< 1.0
< 1.0
roiect Name: 4th Quarter Chloroform 2022
ww. ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
1.00
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 ·c
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5 030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
Lab ID: 22L0766-20
Analysis
Date/Time
12/13/22
12/15/22
12/13/22
12/13/22
12/13/22
12/13/22
.fug{li
J-LOW-L
Page 22 of 41
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LABORATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-28_ 12072022
Matrix: Water
Date Sampled: 12/7/22 8:09
lnorg,rnic
Chloride
Nitrate+ Nitrite, Total, as N
\'olalilc Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
52.0
16.6
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name: 4th Quarter Chloroform 2022
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.500
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 °C
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D 15030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/14/22
12/13/22
12/12/22
12/12/22
12/12/22
12/12/22
Lab ID: 22L0766-06
Analysis
Date/Time
12/14/22
12/15/22
12/12/22
12/12/22
12/12/22
12/12/22
E!.J!g{fil
J-LOW-L
Page 8 of 41
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
lABOAAl'ORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-29_12092022
Matrix: Water
Date Sampled: 12/9/22 12:12
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"olatilc Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
41.3
2.69
< 1.0
588
< 1.0
< 1.0
:iiect Name: 4th Quarter Chloroform 2022
rw. ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
100
1.0
1.0
PO#:
Receipt: 12/14/22 12:40@ 0.0 °C
Date Reported: 1/3/2023
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L 1102
Preparation
Date/Time
12/28/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
Lab ID: 22L1102-06
Analysis
Date/Time
12/29/22
12/17/22
12/15/22
12/15/22
12/15/22
12/15/22
J-LOW-L
Page 8 of 20
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LABOJIAT0 Rll:S
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-30_12092022
Matrix: Water
Date Sampled: 12/9/22 10:55
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\'olatilc Organil' Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
36.5
2.67
< 1.0
60.5
< 1.0
< 1.0
oiect Name: 4th Quarter Chloroform 2022
vw. ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/14/22 12:40@ 0.0 °C
Date Reported: 1/3/2023
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L 1102
Preparation
Date/Time
12/28/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
Lab ID: 22L1102-03
Analysis
Date/Time
12/29/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
J-LOW-L
Page 5 of 20
:
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www. Chem tech Ford. com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LABORATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-31_12072022
Matrix: Water
Date Sampled: 12/7/22 8:40
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"ola tilc Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
31.8
0.410
< 1.0
< 1.0
< 1.0
< 1.0
'roiect Name: 4th Quarter Chloroform 2022
vww. ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 ·c
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/14/22
12/13/22
12/12/22
12/12/22
12/12/22
12/12/22
Lab ID: 22L0766-10
Analysis
Date/Time
12/14/22
12/15/22
12/12/22
12/12/22
12/12/22
12/12/22
fugffi
J-LOW-L
Page 12 of 41
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
t.AS:0$1:A.fORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-32_12072022
Matrix: Water
Date Sampled: 12/7/22 8:15
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"ulatilc Organic Compounds
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
Result
48.4
1.68
< 1.0
< 1.0
< 1.0
< 1.0
)iect Name: 4th Quarter Chloroform 2022
'W. ChemtechFord. com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 1219/22 9:54@ 3.8 °C
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D 15030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/14/22
12/13/22
12/12/22
12/12/22
12/12/22
12/12/22
Lab ID: 22L0766-07
Analysis
Date/Time
12/14/22
12/15/22
12/12/22
12/12/22
12/12/22
12/12/22
J-LOW-L
Page 9 of 41
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LAB0kAl'O!H£:S
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-33_12092022
Matrix: Water
Date Sampled: 12/9/22 10:15
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
,·otatilc Organk Compountls
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
45.1
3.52
< 1.0
50.5
< 1.0
< 1.0
•oiect Name: 4th Quarter Chloroform 2022
WI. ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/14/22 12:40@ 0.0 °C
Date Reported: 1/3/2023
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
CtF WO#: 22L 1102
Preparation
Date/Time
12/28/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
Lab ID: 22L1102-01
Analysis
Date/Time
12/28/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
fug(fil
J-LOW-L
Page 3 of 20
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LA80RA't"(JRIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-33R_12082022
Matrix: Water
Date Sampled: 12/8/22 9:15
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Vol.ililc Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
< 1.00
<0.100
< 1.0
2.2
< 1.0
< 1.0
roiect Name: 4th Quarter Chloroform 2022
ww. ChemtechFord. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
l.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 ·c
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/12/22
12/13/22
12/12/22
12/12/22
12/12/22
12/12/22
Lab ID: 22L0766-02
Analysis
Date/Time
12/12/22
12/15/22
12/12/22
12/12/22
12/12/22
12/12/22
J-LOW-L
Page 4 of 41
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www. Chem tech Ford.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LABOIIAl'OP.IES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-34_ 12082022
Matrix: Water
Date Sampled: 12/8/22 8:09
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"oh1tilc Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
17.0
1.16
< 1.0
< 1.0
< 1.0
< 1.0
roiect Name: 4th Quarter Chloroform 2022
ww. ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 ·c
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
Lab ID: 22L0766-18
Analysis
Date/Time
12/13/22
12/15/22
12/13/22
12/13/22
12/13/22
12/13/22
J-LOW-L
Page 20 of 41
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www. Chem tech Ford. com
Serving the lntermountain West Since 1953
CHEMTECH-FORO
t.AB ()II Al ORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-35_12072022
Matrix: Water
Date Sampled: 12/7/22 8:57
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"olatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
27.4
1.79
< 1.0
< 1.0
< 1.0
< 1.0
>iect Name: 4th Quarter Chloroform 2022
w. ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 ·c
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 15030A
EPA 82600 /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/13/22
12/13/22
12/12/22
12/12/22
12/12/22
12/12/22
Lab ID: 22L0766-12
Analysis
Onteffime
12/13/22
12/15/22
12/12/22
12/12/22
12/12/22
12/12/22
!:!fililll
J-LOW-L
Page 14 of 41
:
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LA80HAT0RIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-36_12072022
Matrix: Water
Date Sampled: 12/7/22 8:30
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"olatile Organic Compounds
Carbon Tc1rachloridc
Chlorofonn
Chloromethane
Methylene Chloride
59.7
0.100
< 1.0
< 1.0
< 1.0
< 1.0
1iect Name: 4th Quarter Chloroform 2022
w. ChemtechFord. com
mg.IL
mg.IL
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 ·c
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/14/22
12/13/22
12/12/22
12/12/22
12/12/22
12/12/22
Lab ID: 22L0766-09
Analysis
Date/Time
12/14/22
12/15/22
12/12/22
12/12/22
12/12/22
12/12/22
.E!!gffi
J-LOW-L
Page 11 of 41
:
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com CHEMTECH·FORD Serving the lntermountain West Since 1953
LA80RAT0Rlf5
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-37_11302022
Matrix: Water
Date Sampled: 11/30/22 9:08
lnoq,:anil'
Chloride
Nitrate+ Nitrite, Total, as N
\"olatilc Or:,:anir C'ompo11111ls
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
578
30.9
5.7
9640
< 1.0
< 1.0
oject Name: 4th Quarter Chloroform 2022
vw. ChemtechFord. com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
10.0
1.00
1.0
1000
1.0
1.0
PO#:
Receipt: 12/2/22 14:10@ -1.2 °C
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0202
Preparation
Dale/Time
12/7/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Lab ID: 22L0202-15
Analysis
Date/'flmc
1217/22
1217/22
12/5/22
12/5/22
12/5/22
12/5/22
fug_{fil
Page 17 of 32
..
=
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LAB0Ji:At0~1£:S
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-38_12072022
Matrix: Water
Date Sampled: 12/7/22 9:16
Inorganic
Chloride
Nitrate+ Nitrite, Total as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
36.4
8.90
< 1.0
< 1.0
< 1.0
< 1.0
ect Name: 4th Quarter Chloroform 2022
v. ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.500
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 °C
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 82600 /5030A
EPA 8260015030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Dntc/Timc
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
Lab ID: 22L0766-14
Analysis
Date/Time
12/13/22
12/15/22
12/13/22
12/13/22
12/13/22
12/13/22
J-LOW-L
Page 16 of 41
:
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com CHEMTECH-FORD Serving the lntermountain West Since 1953
LA80~ATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-39_11302022
Matrix: Water
Date Sampled: 11/30/22 9:15
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\'olatilc Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
80.6
7.86
1.2
1720
< 1.0
< 1.0
oject Name: 4th Quarter Chloroform 2022
IW. ChemtechFord. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.500
1.0
100
1.0
1.0
PO#:
Receipt: 12/2/22 14:10@ -1.2 °C
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D 15030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0202
Preparation
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Lab ID: 22L0202-06
Analysis
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
f!.!!ml
Page 8 of 32
Ir
:
i
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com CHEMTECH·FORD Serving the lntermountain West Since 1953
LA.60 ~AfORIE5
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-40_11302022
Matrix: Water
Date Sampled: 11/30/22 10:15
lnor~anic
Chloride
Nitrate+ Nitrite, Total, as N
\'olatilc Org:rnic Compounds
Carbon Tc1rachloridc
Chloroform
Chloromethane
Methylene Chloride
Result
44.8
2.24
< l.0
298
< 1.0
< l.0
,ject Name: 4th Quarter Chloroform 2022
w. ChemtechFord. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
l.0
10.0
1.0
1.0
PO#:
Receipt: 12/2/22 14:10@ -1.2 ·c
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0202
Preparation
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Lab ID: 22L0202-03
Analysis
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Page 5 of 32
:
Chemtech-Ford Laboratories
9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com CHEMTECH·FORD Serving the lntermountain West Since 1953
LABORATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-41_11302022
Matrix: Water
Date Sampled: 11/30/22 10:00
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"olatilc Organic Compounds
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
Result
38.0
6.00
< 1.0
1050
< l.O
< 1.0
>ject Name: 4th Quarter Chloroform 2022
w. Chem tech Ford. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.200
l.O
100
1.0
1.0
PO#:
Receipt: 1212122 14:10@ -1.2 ·c
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0202
Preparation
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
Lab ID: 22L0202-09
Analysis
Date/Time
12/5/22
12/7/22
12/5/22
12/5/22
12/5/22
12/5/22
.E!!Jilll
Page 11 of 32
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www. Chem tech Ford. com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
1.ABOffATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-42_12072022
Matrix: Water
Date Sampled: 12/7/22 7:45
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"olatilc Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
15.6
3.30
< 1.0
< 1.0
< 1.0
< 1.0
oiect Name: 4th Quarter Chloroform 2022
vw. ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 ·c
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/14/22
12/13/22
12/12/22
12/12/22
12/12/22
12/12/22
Lab ID: 22L0766-04
Analysis
Date/Time
12/14/22
12/15/22
12/12/22
12/12/22
12/12/22
12/12/22
fug{ll
J-LOW-L
Page 6 of 41
:
•
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LA8CillAT0Rl!:S
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-43_12072022
Matrix: Water
Date Sampled: 12/7/22 8:48
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"olatilc Organil' Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
40.7
0.383
< 1.0
< 1.0
< 1.0
< 1.0
ect Name: 4th Quarter Chloroform 2022
,. ChemtechFord. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 °C
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/13/22
12/13/22
12/12/22
12/12/22
12/12/22
12/12/22
Lab ID: 22L0766-11
Analysis
Date/Time
12/13/22
12/15/22
12/12/22
12/12/22
12/12/22
12/12/22
Flag(s)
J-LOW-L
Page 13 of 41
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www. Chem tech Ford. com CHEMTECH-FORD Serving the lntermountain West Since 1953
Ll,60ft.\1'0RIE~
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-60_11302022
Matrix: Water
Date Sampled: 11/30/22 8:10
lnnr~anic
Chloride
Nitrate+ Nitrite, Total, as N
\ olatilc Or~anic ( ·ompouruls
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
< 1.00
<0.100
< 1.0
< 1.0
< 1.0
< 1.0
ect Name: 4th Quarter Chloroform 2022
v. Chem tech Ford. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 1212122 14:10@ -1.2 ·c
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA300.0
EPA 353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0202
Preparation
Dntcffime
12/6/22
12/7/22
12/6/22
12/6/22
12/6/22
12/6/22
Lab ID: 22L0202-16
Analysis
Date/Time
12/6/22
12/7/22
12/6/22
12/6/22
12/6/22
12/6/22
J-LOW-L
J-LOW-L
Page 18 of 32
:
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
lAB 0fl,t,l 0Rll:S
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-65_12072022
Matrix: Water
Date Sampled: 12/7/22 7:55
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\"olatilc Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
S0.9
7.02
< 1.0
< 1.0
< 1.0
< 1.0
,ject Name: 4th Quarter Chloroform 2022
w. ChemtechFord. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
O.S00
1.0
l.O
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 ·c
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA3S3.2
EPA 8260D /S030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
Lab ID: 22L0766-15
Analysis
Date/Time
12/13/22
12/15/22
12/13/22
12/13/22
12/13/22
12/13/22
.fugiil
J-LOW-L
Page 17 of 41
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LAB011.ATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-70_12082022
Matrix: Water
Date Sampled: 12/8/22 8:36
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\'olatilc Organic Compound~
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
58.5
0.660
< 1.0
6.0
< 1.0
< 1.0
ect Name: 4th Quarter Chloroform 2022
v. ChemtechFord. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.00
0.100
1.0
1.0
1.0
l.O
PO#:
Receipt: 12/9/22 9:54@ 3.8 °C
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
12/13/22
Lab ID: 22L0766-24
Analysis
Date/Time
12/14/22
12/14/22
12/13/22
12/13/22
12/13/22
12/13/22
.E!J!ghl
J-LOW-L
Page 26 of 41
!
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www. Chem tech Ford. com
Serving the lntermountain West Since 1953
CHEMTECH-FORO
t.ABOaAtORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-75_12092022
Certificate of Analysis
PO#:
Receipt: 12/14/22 12:40@ 0.0 °C
Date Reported: 1/3/2023
Project Name: 4th Quarter Chloroform 2022
Matrix: Water Lab ID: 22L1102-09
Date Sampled: 12/9/22 10:35
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\'olatilc Or:,:anit· Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
45.2
3.63
< 1.0 ---
67.9
< 1.0
< 1.0
ect Name: 4th Quarter Chloroform 2022
v. ChemtechFord. com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L 1102
Preparation
Date/Time
12/28/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
Analysis
Date/Time
12/29/22
12/16/22
12/15/22
12/15/22
12/15/22
12/15/22
fugW
J-LOW-L
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com CHEMTECH-FORD Serving the lntermouritain West Since 1953
l/180AAT0Rlf5
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: Trip Blank
Matrix: Water
Date Sampled: 11/30/22 8:10
\"olatilc Org:mic ( ·om pounds
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
< 1.0
< 1.0
< 1.0
< 1.0
ect Name: 4th Quarter Chloroform 2022
v. ChemtechFord. com
Units
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
1.0
1.0
1.0
PO#:
Receipt 1212122 14:10@ -1 .2 ·c
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
M£!.t!..Q!!
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0202
Preparation
Dntc/Time
12/5/22
12/5/22
12/5/22
12/5/22
Lab ID: 22L0202-17
Analysis
Onie/Time
12/5/22
12/5/22
12/5/22
12/5/22
fugW
Page 19 of 32
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
lA80JfAf0 RIE!i
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: Trip Blank
Matrix: Water
Date Sampled: 12/6/22 7:35
\"olatilc Or~anic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
< 1.0
< 1.0
< 1.0
< 1.0
iiect Name: 4th Quarter Chloroform 2022
w. ChemtechFord.com
Units
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
1.0
1.0
1.0
PO#:
Receipt: 12/9/22 9:54@ 3.8 ·c
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
Sampled By: tanner Holliday
Method
EPA 8260D /5030A
EPA 8260D 15030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22L0766
Preparation
Date/Time
12/13/22
12/13/22
12/13/22
12/13/22
Lab ID: 22L0766-25
Analysis
Date/Time
12/13/22
12/13/22
12/13/22
12/13/22
.El!!lilll
J-LOW-L
Page 27 of 41
:
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
L.ABORAt ORll:S
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: Trip Blank
Matrix: Water
Date Sampled: 1219122 10:15
Result
\"olatilc Oq~anic Compounds •
Carbon Tetrachloride < 1.0
Chloroform < 1.0
Chloromethane < 1.0
Methylene Chloride < 1.0
iect Name: 4th Quarter Chloroform 2022
N. ChemtechFord. com
Units
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
1.0
1.0
1.0
PO#:
Receipt: 12114122 12:40@ 0.0 °C
Date Reported: 1/3/2023
Project Name: 4th Quarter Chloroform 2022
Sampled By: Tanner Holliday
Method
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D 15030A
CtF WO#: 22L 1102
Preparation
Date/Time
12/15/22
12/15/22
12/15/22
12/15/22
Lab ID: 22Ll102-10
Analysis
Date/Time
12/15/22
12/15/22
12/15/22
12/15/22
J-LOW-L
Pam'! 1? nf ?n
9632 South 500 West
CHEMTECH-FORD
LA8◊R HOIIIES
12/16/2022
Work Order: 22L0202
Project: 4th Quarter Chloroform 2022
Energy Fuels Resources, Inc.
Attn: Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Client Service Contact: 801.262. 7299
The analy e pre enled on chis report were perfom1cd in accordance with the
ational En\lironmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, nags or ca e narrati\le. If the report is 10 be used for
regulatory compliance. it hould be presented in its emirely. and not be
altered.
Approved By:
Melissa Connolly, Project Manager
Sandy, Utah 84070 801-262. 7299 Main 866.792.0093 Fax
Serving the lntermountain West since 1953
www.ChemtechFord.com
Page 1 of 32
CHEMTECH-FORD
LAB ORATOR 1i;s
Energy Fuels Resources, Inc.
Project: 4th Quarter Chloroform 2022
Project Manager: Tanner Holliday
Laboratory ID
22L0202-01
22L0202-02
22L0202-03
22L0202-04
22L0202-05
22L0202-06
22L0202-07
22L0202-08
22L0202-09
22L0202-10
22L0202-11
22L0202-12
22L0202-13
22L0202-14
22L0202-15
22L0202-16
22L0202-17
Sample Name
TW4-25 _ 11302022
TW4-24_ 11302022
TW4-40_11302022
MW-26_ 11302022
TW4-02_ 1130202.2
TW4-39 _ 11302022
TW4-01_11302022
TW4-04_11302022
TW4-41_11302022
TW4-21_11302022
MW-04_ 11302022
TW4-11 _ 11302022
TW4-22_ 11302022
TW4-19_11302022
TW4-37_11302022
TW4-60_11302022
Trip Blank
Sample Preparation
/
Work Order Report Narrative
All samples were prepared within method specified holding times. No preparation issues were noted.
Method Blanks
All blank values were within method acceptance criteria. No blank values exceeded the minimum reporting limit for any
analysis in this work order.
Laboratory Control Samples
All laboratory control samples were within method acceptance criteria, except as noted by qualifying flags. Batch
BWL0243, which also contained sample 22L0202-16 had low LCS recoveries for Carbon Tetrachloride and
Chloromethane. It is important to note that certain flags on an individual analyte do not constitute failure of the method as
a whole. EPA methodologies recognize that it may not be possible for every compound to meet all recovery or percent
difference criteria. The batch passed required method criteria for these analytes.
Method Spikes
All method spike recoveries were within method acceptance criteria, except as noted by qualifying flags.
Method Spike Duplicates
All method spike duplicates were within method acceptance criteria, except as noted by qualifying flags.
Corrective Actions
There are no corrective actions associated with this work order.
>ject Name: 4th Quarter Chloroform 2022
w. ChemtechFord. com
CtF WO#: 22L0202
I
:
Page 2 of 32
CHEMTECH·FORD
LA80*"f0111E'S
Chemtech-Ford Laboratories
Serving the lntermountain West Since 1953
9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Certificate of Analysis
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Report Footnotes
Abbreviations
NO c Not detected at 1he corresponding Minimum Rcponing Limit (t-.,mL).
PO#:
Receipt: 12/2/22 14:10@ -1.2 °C
Date Reported: 12/16/2022
Project Name: 4th Quarter Chloroform 2022
I mg/L ~ 01\c milligram per liter or I mg/l(g = one mflligmn1 per kilogram = I pan per million.
I ug/L ~ one microgram per liter or I ug/l(g = one microgr:un per kilogram = I part per billion.
1 ng/L g one 111111ogrnmpcr literor Ing/kg ~011e1111nogramp~rkilogram = I partpertrillion.
Flag Descriptions
J-LOW-L = Estimated low due to low recovery ofLCS
MS-Low= Estimated low due to Matrix Spike recovery.
roject Name: 4th Quarter Chloroform 2022
NW. ChemtechFord. com
CtF WO#: 22L0202
Page 20 of 32
:
American West
Analytical Laboratories CHAIN OF CUSTODY
463 W. 3600 $. Salt Lake C~y. UT 84115
Phone# [phone] Toll Free# [phone]
All enaly9ls WiH bo oorduded ""I'll NELAP -ed rnell1ods and all d«o "4A bo ,_,i.., u,inq AWAl.'s otand•d ~o liola and ni,omng
GmHs (PQLJ unleM epedfia,lly ~od othel',oil;e on ti-.. Cl!Aio or Cullody and/of Dllll<llod __,...,.,_
AWAL lab Sample Set#
Page 1 of 2 1-~ Fax # [phone] Email [e-mail] I QC Level: II Tum Around Time: 1 u.....-..,,,._,_11av.-..,-, l°u!' Date: I www.awal-labs.com 3 Standard --•M-~-~•
'21L d10'l
the day they an, due.
Cient: Energy Fuela Resources, Inc. X Include EDD: Laboratory Use Only
6425 S. Hwy. 191 LOCUS UPLOAD
Address: EXCEL ~w-·
Blanding, UT 84511 Fiekl Filte<ed For:
1 Shipped or hand deliv-
Contact: TIIDDer RoWday 2 Ambient o< Chilled
[phone] F« Compliance With: -L1--~ Phone#: Cell#: □ NELAP 3 Tompemlure
□ RCRA
Email: U.~-.erafne1a.com; KWeln~erofaela.com □ CWA 4 -•adBrokenll.eal<ir1!
4th Quarter Chloroform 2022 □ SOWA (lm...-,YSealod)
Project Name: □ ElAP/A2lA y N
o' □ NUAP
Project#: ~ ti □ Non-Compliance 5 Properly-ad &i 0 u □ Other: y N
PO#: ~ "1
Chacl<ad --e .. 0 i )( 0 IO y N T11DDer HoWday :s C'l Sampler Name: ., 0 0 ~ ::;; 0 ~ Known Hazards e -odWdhln I!: II) 0 0 ..... ::t. cl t-.gT.-Time 0 I N & 'o 0 6 g y N
Samele ID: Date Samoled Samoled .. I!: Samele Comments "' "'
TW4-25_11302022 11/30/2022 845 s w X X X
TW4-24_11302022 11/30/2022 855 5 w X X X NV"T-Was:
· TW4-40_11302022 11/30/2022 1015 5 w X X X I -.onou...~
y N NA
· IIW-26_11302022 11/30/2022 922 5 w X X X 2 U.-.onOulorPadolga
, TW4-02_11302022 11/30/2022 936 5 w X X X y N NA
1 TW4-39_11302022 11/30/2022 915 5 w X X X 3 Pr.....ionSanple
y N NA
· TW4-01_11302022 11/30/2022 952 s w X X X 4 -., on &wople
1 TW4-04_11302022 11/30/2022 1007 s w X X X y N NA
1 TW4-41_11302022 11/30/2022 1000 s VI X X X --5ample
, TW4-21_11302022 11/30/2022 836 5 w X X X ~andCOCR-y N
1 MW-04_11302022 11/30/2022 945 5 w X X X
2 TW4-11_11302022 11/30/2022 930 s w X X X
3 TW4-22_11302022 11/30/2022 902 5 Yf X X X ,
~t>r:.:,~K U 11· L ~ Oat.: :~:by: /_.. ,&,1/' '~ DMo.: vurz.. ni, Special Instructions: >2/!/20Z!
'-J romo: °"nlNamt." 71UrPrC.. ~ I l1lD --T.,_.....,._ ""' ~by: Ootr -edt,y: 7 Cate: See the Analytical Scope of Work for Reporting Limits and voe
lslano11n lc'"-ur• nnnlyte list.
Time:
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American West
Analytical Laboratories
463W. 3600S. Salt Lake City, UT 84115
Phone# [phone] Toll Free# (888) 263-1!686 L--~ Fax # [phone] Email [e-mail]
www.awal-labs.com
1)_ l Oi O 1-Client: Energy Fuels Reaource■, Inc.
Addl8SS: 642S 8. Rwy. 191
Bland.ing, UT 84S11
Contact: Tanner HoWday
Phone#: (43S1678-2221 Cell#:
Email: tJioW4aJ@esl""IJ"faeJ.a.c-om; KWem~-erafaela.com
Project Name: 4th Quarter Chloroform 2022
Project#:
PO#:
Sampler Name: Tanner RoWday
Samole ID: Date Samoled
" 1 TW4--l9_11302022 11/30/2022
, TW4-37 _11302022
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Page 2 of 2
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Page 22 of 32
QC Report for Work Order (WO) -22L0202
Analyte %Rec RPD Limits RPDMax Result Source Cone SpkValue MRL DF
Blank -EPA 300.0
QC Sample ID: BWL0152-BLK1 Batch: BWL0152
Date Prepared: 12/05/2022 Date Analyzed: 12/05/2022 Units: mg/L
Chloride ND 1.00 1.00
QC Sample ID: BWL0199-BLK1 Batch: BWL0199
Date Prepared: 12/06/2022 Date Analyzed: 12/06/2022 Units: mg/L
Chloride ND 1.00 1.00
QC Sample ID: BWL0207-BLK1 Batch: BWL0207
Date Prepared: 12/06/2022 Date Analyzed: 12/07/2022 Units: mg/L
Chloride ND 1.00 1.00
QC Sample ID: BWL0284-BLK1 Batch: BWL0284
Date Prepared: 12/07/2022 Date Analyzed: 12/07/2022 Units: mg/L
Chloride ND 1.00 1.00
QC Sample ID: BWL0296-BLK1 Batch: BWL0296
Date Prepared: l 2/07/2022 Date Analyzed: 12/08/2022 Units: mg/L
Chloride ND 1.00 1.00
LCS -EPA 300.0
QC Sample ID: BWL0152-BS1 Batch: BWL0152
Date Prepared: 12/05/2022 Date Analyzed: 12/05/2022 Units: mg/L
Chloride 98.6 90 -110 49.3 50.0 1.00 1.00
QC Sample ID: BWL0199-BS1 Batch: BWL0199
Date Prepared: 12/06/2022 Date Analyzed: 12/06/2022 Units: mg/L
Chloride 104 90 -110 52.2 50.0 1.00 1.00
QC Sample ID: BWL0207-BS1 Batch: BWL0207
Date Prepared: 12/06/2022 Date Analyzed: 12/07/2022 Units: mg/L
Chloride 104 90 -110 51.8 50.0 1.00 1.00
QC Sample ID: BWL0284-BS1 Batch: BWL0284
Date Prepared: 12/07/2022 Date Analyzed: 12/07/2022 Units: mg/L
Chloride 104 90 -110 52.1 50.0 1.00 1.00
QC Sample ID: BWL0296-BS1 Batch: BWL0296
Date Prepared: 12/07/2022 Date Analyzed: 12/08/2022 Units: mg/L
Chloride 104 90 -110 51 .8 50.0 1.00 1.00
Matrix Spike -EPA 300.0
JC Sample ID: BWL0152-MS1 Batch: BWL0152 QC Source Sample: 22L0202-01
)ate Prepared: 12/05/2022 Date Analyzed: 12/05/2022 Units: mg/L
~hloride 69.7 80 -120 75.0 67.2 11.1 1.11 1.00
QM-4X -The spike recovery was outside of QC acceptance limits for the MS and/or MSD due to analyte concentration
at 4 times or greater the spike concentration. The QC batch was accepted based on LCS and/or LCSD recoveries
within the acceptance limits.
IC Sample ID: BWL0152-MS2 Batch: BWL0152 QC Source Sample: XX:XXXX:X-XX ..
1ate Prepared: 12/05/2022 Date Analyzed: 12/05/2022 Units: mg/L
hloride 94.1 80 -120 122 28.0 100 11.0 1.00
C Sample ID: BWL0199-MS1 Batch: BWLOl99 QC Source Sample: XXXXXXX-XX
1te Prepared: 12/06/2022 Date Analyzed: 12/06/2022 Units: mg/L i
1loride 97.1 80 -120 127 116 11.1 1.11 1.00
: Sample ID: BWL0199-MS2 Batch: BWL0199 QC Source Sample: XXXXXXX-XX
te Prepared: 12/06/2022 Date Analyzed: 12/06/2022 Units: mg/L
loride 98.2 80 -120 128 117 11.1 1.11 1.00
F WO#: 22L0202
vw. ChemtechFord.com Page 23 of 32
QC Report for Work Order (WO) -22L0202
Aoalyte %Rec RPO Limits RPO Max Result Source Cone Spk.Value MRL OF
Matrix Spike -EPA 300.0 (cont.)
QC Sample ID: BWL0207-MSI Batch: B WL0207 QC ource Sample: XXXXXXX-XX
Date Prepared: 12/06/2022 Date Analyzed: 12/07/2022 Units: mg/L
Chloride 102 80 -120 108 6.35 100 11 .0 1.00
QC Sample ID: BWL0207-MS2 Batch: BWL0207 QC ource Sample: XXXXXXX-XX
Date Prepared: 12/06/2022 Dare Analyzed: 12/07/2022 Units: mg/L
Chloride 111 80 -120 573 462 100 11.0 1.00
QC ample ID: BWL0284-MSI Batch: 8 WL0284 QC Source Sample: XXXXXXX-XX
Date Prepared: 12/07/2022 Date Analyzed: 12/07/2022 Units: mg/L
Chloride 96.6 80 • 120 117 20.1 100 11.0 1.00
QC Sample lD: BWL0284-MS2 Batch: B WL0284 QC Source Sample: XXXXXXX-XX
Date Prepared: 12/07/2022 DateAnalyzed: 12/07/2022 Units: mg/L
Chloride 99.8 80 -120 132 32.6 100 11 .0 1.00
QC Sample ID: BWL0296-MSI Batch: BWL0296 QC Source Sample: XXXXXXX-XX
Date Prepared: 12/07/2022 Date Analyzed: 12/08/2022 Units: mg/L
Chloride 108 80 • 120 190 81 .5 100 11 .0 1.00
QC Sample ID: BWl'...0296-MS2 Batch: BWL0296 QC Source Sample: XXXXXXX-XX
Date Prepared: 12/07/2022 Date Analyzed: 12/08/2022 Unit5: mg/L
Chlo ride 80.4 80 -120 467 386 100 11 .0 1.00
Matrix Spike Dup -EPA 300.0
QC Sample ID: BWL0152-MSDI Batch: BWL0152 QC Source ample: 22L0202-0 I
Dare Prepared: 12/05/2022 Date Analyzed: 12/05/2022 Units: mg/L
Chloride 47.1 3.42 80 · 120 20 72 .5 67.2 11.1 1.11 1.00
OM-4X -The spike recovery was outside of QC acceptance limits for the MS and/or MSD due to analyte concentration
at 4 times or greater the spike concentration. The QC batch was accepted based on LCS and/or LCSD recoveries
within the acceptance limits.
QC Sample fD: BWL0152-MSD2 Batch: BWLO 152 QC Source Sample: XXXXXXX-XX
Date Prepared: 12/05/2022 Date Analyzed: 12/05/2022 Units: mg/L
Chloride 94.6 0.432 80 -120 20 123 28.0 100 11.0 1.00
QC Sample ID: BWLOl99-MSDI Batch: BWLOl99 QC Source ample: XXXXXXX-XX
Date Prepared: 12/06/2022 Date Analyzed: 12/06/2022 Units: mg/L
Chloride 97.1 0.000633 80 · 120 20 127 116 11 .1 1.11 1.00
QC Sample ID: BWLO l 99-MSD2 Batch: BWL0199 QC Source Sample: XXXXXXX-XX
Date Prepared: 12/06/2022 Date Analyzed: 12/06/2022 Units: mg/L
'.;"hloride 97.3 0.0801 80 -120 20 128 117 11 .1 1.11 1.00
2C Sample ID: BWL0207-M DI Batch: BWL0207 QC Source Sample: XXXXXXX-XX
)ate Prepared: 12/06/2022 Date Analyzed: 12/07/2022 Units: mg/L
~hloride 99.5 1.92 80 -120 20 106 6.35 100 11 .0 1.00
IC Sample ID: BWL0207-MSD2 Batch: BWL0207 QC Source Sample: XXXXXXX-XX
,are Prepared: 12/06/2022 Date Ana lyzed: 12/07/2022 Units_: mg/L I
hloride 109 0.309 80-120 20 571 462 100 11 .0 1.00 :
C Sample ID: BWL0284-MSDI Batch: B WL0284 QC Source Sample: XXXXXXX-XX
te Prepared: 12/07/2022 Date Analyzed: 12/07/2022 Units: mg/L
llorlde 94.2 2.06 80 -120 20 114 20.1 100 11 .0 1.00
:: Sample JD: BWL0284-MSD2 Batch: BWL0284 QC Source Sample: XXXXXXX-XX ..
1te Prepared: 12/07/2022 Date Ana lyzed: 12/0712022 Units: mg/L
loride 99.7 0.0615 80 -120 20 132 32.6 100 11 .0 1.00
F WO#: 22L0202
vw. ChemtechFord. com Page 24 of 32
QC Report for Work Order (WO) -22L0202
Analyte %Rec RPD Limits RPO Max Result Source Cone
Matrix Spike Dup -EPA 300.0 (cont.)
QC Sample ID: BWL0296-MSD1 Batch: BWL0296 QC Source Sample: XXXXXXX-XX
Date Prepared: 12/07/2022 Date Analyzed: 12/08/2022 Units:
Chloride 107 0.448 80 -120 20 189 81.5
QC Sample ID: BWL0296-MSD2 Batch: BWL0296 QC Source Sample: XXXXXXX-XX
Date Prepared: 12/07/2022 Date Analyzed: 12/08/2022 Units:
Chloride 79.3 0.255 80 -120 20 465 386
QM-12 -The MSD recovery was outside acceptance limits, but passed duplicate spike acceptance criteria. The batch
was accepted based on the acceptability of the MS.
WO#: 22L0202
1. ChemtechFord.com
mg/L
mg/L
SpkValue MRL DF
100 11 .0 1.00
100 11 .0 1.00
If
..
~
Page 25 of 32
QC Report for Work Order (WO) -22L0202
Analyte %Rec RPO Limits RPO Max Result Source Cone Spk Value MRL OF
Blank -EPA 353.2
QC Sample ID: BWL0249-BLK1 Batch: BWL0249
Date Prepared: 12/07/2022 Date Analyzed: 12/07/2022 Units: mg/L
Nitrate + Nitrite, Total, as N ND 0.100 1.00
LCS -EPA 353.2
QC Sample ID: BWL0249-BS l Batch: BWL0249
Date Prepared: 12/07/2022 Date Analyzed: 12/07/2022 Units: mg/L
Nitrate + Nitrite, Total, as N 96.5 80 -120 1.93 2.00 0.100 1.00
Matrix Spike -EPA 353.2
QC Sample ID: BWL0249-MS1 Batch: BWL0249 QC Source Sample: XXXXXXX-XX
Date Prepared: 12/07/2022 Date Analyzed: 12/07/2022 Units: mg/L
Nitrate+ Nitrite, Total, as N 98.3 80 -120 1.40 0.416 1.00 0.100 1.00
QC Sample ID: BWL0249-MS2 Batch: BWL0249 QC Source Sample: 22L0202-01
Date Prepared: 12/07/2022 Date Analyzed: 12/07/2022 Units: mg/L
Nitrate + Nitrite, Total, as N 102 80 -120 2.50 1.47 1.00 0.100 1.00
Matrix Spike Dup -EPA 353.2
QC Sample ID: BWL0249-MSD1 Batch: BWL0249 QC Source Sample: XXXXXXX-XX
Date Prepared: 12/07/2022 Date Analyzed: 12/07/2022 Units: mg/L
Nitrate + Nitrite, Total, as N 100 1.35 80 -120 20 1.42 0.416 1.00 0.100 1.00
QC Sample ID: BWL0249-MSD2 Batch: BWL0249 QC Source Sample: 22L0202-0l
Date Prepared: 12/07/2022 Date Analyzed: 12/07/2022 Units: mg/L
Nitrate + Nitrite, Total, as N 99.9 1.05 80 -120 20 2.47 1.47 1.00 0.100 1.00
:
: WO#: 22L0202
w. Chem tech Ford. com Page 26 of 32
QC Report for Work Order (WO) -22L0202
Analyte %Rec RPD Limits RPD Max Result Source Cone SpkValue MRL DF
Blank -EPA 8260D /5030A
QC Sample ID: BWL0I88-BLK1 Batch: BWL0188
Date Prepared: 12/05/2022 Date Analyzed: 12/05/2022 Units: ug/L
Carbon Tetrachloride ND 1.0 1.00
Chloroform ND 1.0 1.00
Chloromethane ND 1.0 1.00
Methylene Chloride ND 1.0 1.00
QC Sample ID: BWL0243-BLK1 Batch: BWL0243
Date Prepared: 12/06/2022 Date Analyzed: 12/06/2022 Units: ug/L
Carbon Tetrachloride ND 1.0 1.00
J-LOW-L • Estimated low due to low recovery of LCS
Chloroform ND 1.0 1.00
Chloromethane ND 1.0 1.00
J-LOW•L -Estimated low due to low recovery of LCS
Methylene Chloride ND 1.0 1.00
LCS -EPA 8260D /5030A
QC Sample ID: BWL0188-BS1 Batch: BWL0188
Date Prepared: 12/05/2022 Date Analyzed: 12/05/2022 Units: ug/L
Carbon Tetrachloride 106 70 -130 10.6 10.0 1.0 1.00
Chloroform 103 70 -130 10.3 10.0 1.0 1.00
Chloromethane 72.1 70 -130 7.21 10.0 1.0 1.00
Methylene Chloride 93.4 70 -130 9.34 10.0 1.0 1.00
QC Sample ID: BWL0243-BS1 Batch: BWL0243
Date Prepared: 12/06/2022 Date Analyzed: 12/06/2022 Units: ug/L
Carbon Tetrachloride 49.1 70 -130 4.91 10.0 1.0 1.00
J-LOW-L -Estimated low due to low recovery of LCS
Chloroform 73.2 70 -130 7.32 10.0 1.0 1.00
Chloromethane 46.0 70 -130 4.60 10.0 1.0 1.00
J-LOW-L -Estimated low due to low recovery of LCS
Methylene Chloride 74.1 70 -130 7.41 10.0 1.0 1.00
Matrix Spike -EPA 8260D /5030A
QC Sample ID: BWL0188-MS1 Batch: BWL0188 QC Source Sample: 22L0202-0l
Date Prepared: 12/05/2022 Date Analyzed: 12/05/2022 Units: ug/L
Carbon Tetrachloride 100 70 -130 50.2 ND 50.0 5.0 1.00
Chloroform 95.9 70 -130 48.0 ND 50.0 5.0 1.00
Chloromethane 67.2 70 -130 33.6 ND 50.0 5.0 1.00
MS-Low -Estimated low due to Matrix Spike recovery.
Methylene Chloride 84.6 70 -130 42.3 ND 50.0 5.0 1.00
QC Sample ID: BWL0243-MS1 Batch: BWL0243 QC Source Sample: XXXXXXX-XX
)ate Prepared: 12/06/2022 Date Analyzed: 12/06/2022 Units: ug/L
~arbon Tetrachloride 95.7 70 -130 47.8 ND 50.0 5.0 1.00
:hloroform 97.5 70 -130 48.8 ND 50,0 5.0 1.00
;hloromethane 76.6 70 -130 38.3 ND 50.0 5.0 1.00
~ethylene Chloride 88.1 70 -130 44.0 ND 50.0 5.0 1.00 :
Matrix Spike Dup -EPA 8260D /5030A
1C Sample ID: BWL0188-MSD1 Batch: BWL0188 QC Source Sample: 22L0202-0l if
ate Prepared: 12/05/2022 Date Analyzed: 12/05/2022 Units: ug/L
arbon Tetrachloride 96.3 4.07 70 -130 20 48.2 ND 50.0 5.0 1.00 IL
1loroform 95.3 0.628 70 -130 20 47.6 ND 50.0 5.0 1.00
1loromethane 66.3 1.35 70 -130 20 33.2 ND 50.0 5.0 1.00
tF WO#: 22L0202
ww. ChemtechFord. com Page 27 of 32
QC Report for Work Order (WO) -22L0202
Analyte % Rec RPD Limits RPD Max Result Source Cone SpkValue MRL DF
Matrix Spike Dup -EPA 8260D /5030A (cont.)
QC Sample ID: BWL0188-MSD1 Batch: BWL0188 QC Source Sample: 22L0202-01
Date Prepared: 12/05/2022 Date Analyzed: 12/05/2022 Units: ug/L
MS-Low -Estimated low due to Matrix Spike recovery.
Methylene Chloride 87.3 3.14 70 -130 20 43.6 ND 50.0 5.0 1.00
QC Sample ID: BWL0243-MSD1 Batch: BWL0243 QC Source Sample: XXXXXXX-XX
Date Prepared: 12/06/2022 Date Analyzed: 12/06/2022 Units: ug/L
Carbon Tetrachloride 92.0 3.94 70 -130 20 46.0 ND 50.0 5.0 1.00
Chloroform 95.9 1.65 70 -130 20 48.0 ND 50.0 5.0 1.00
Chloromethane 77.0 0.521 70 -130 20 38.5 ND 50.0 5.0 1.00
Methylene Chloride 90.2 2.36 70 -130 20 45.1 ND 50.0 5.0 1.00
!
:
:tF WO#: 22L0202
!WW. ChemtechFord. com Page 28 of 32
Surrogates Report for Work Order (WO) -22L0202
QCID Analyte % Rec LCL UCL Result SpkValue Batch OF
Blank -EPA 8260D /5030A
BWL0188-BLK1 1,2-Dichloroethane-d4 99.2 64.2 126 9.92 10.0 BWL0188 1.00
BWL0188-BLK 1 4-Bromofluorobenzene 99.8 71.4 125 9.98 10.0 BWL0188 1.00
BWL0188-BLK1 Toluene-dB 100 63.2 129 10.0 10.0 BWL0188 1.00
BWL0243-BLK1 1,2-Dichloroethane-d4 108 64.2 126 10.8 10.0 BWL0243 1.00
BWL0243-BLK1 4-Bromofluorobenzene 101 71.4 125 10.1 10.0 BWL0243 1.00
BWL0243-BLK1 Toluene-dB 100 63.2 129 10.0 10.0 BWL0243 1.00
LCS -EPA 8260D /5030A
BWL0188-BS1 1,2-Dichloroethane-d4 94.0 64.2 126 9.40 10.0 BWL0188 1.00
BWL0188-BS1 4-Bromofluorobenzene 99.9 71.4 125 9.99 10.0 BWL0188 1.00
BWL0188-BS1 Toluene-dB 101 63.2 129 10.1 10.0 BWL0188 1.00
BWL0243-BS1 1,2-Dichloroethane-d4 104 64.2 126 10.4 10.0 BWL.0243 1.00
BWL0243-BS 1 4-Bromofluorobenzene 99.9 71.4 125 9.99 10.0 BWL.0243 1.00
BWL0243-BS1 Toluene-dB 100 63.2 129 10.0 10.0 BWL0243 1.00
Matrix Spike -EPA 8260D /5030A
BWL0188-MS1 1,2-Dichloroethane-d4 88.9 64.2 126 44.4 50.0 BWL0188 1.00
BWL0188-MS1 4-Bromofluorobenzene 99.4 71 .4 125 49.7 50.0 BWL0188 1.00
BWL0188-MS 1 Toluene-dB 101 63.2 129 50.4 50.0 BWL0188 1.00
BWL0243-MS1 1,2-Dichloroethane-d4 105 64.2 126 52.6 50.0 BWL0243 1.00
BWL0243-MS1 4-Bromofluorobenzene 97.9 71.4 125 49.0 50.0 BWL0243 1.00
BWL0243-MS1 Toluene-dB 101 63.2 129 50.6 50.0 BWL0243 1.00
Matrix Spike Dup -EPA 8260D /5030A
BWL0188-MSD1 1,2-Dichloroethane-d4 91 .8 64.2 126 45.9 50.0 BWL018B 1.00
BWL01BB-MSD1 4-Bromofluorobenzene 98.5 71.4 125 49.2 50.0 BWL01B8 1.00
BWL0188-MSD1 Toluene-dB 100 63.2 129 50.0 50.0 BWL01B8 1.00
BWL0243-MSD1 1,2-Dichloroethane-d4 104 64.2 126 52.1 50.0 BWL0243 1.00
BWL0243-MSD1 4-Bromofluorobenzene 96.5 71.4 125 48.2 50.0 BWL.0243 1.00
BWL0243-MSD1 Toluene-dB 100 63.2 129 50.0 50.0 BWL0243 1.00
WO#: 22L0202
N. ChemtechFord. com Page 29 of 32
Surrogate Recoveries (Field Samples)
LabNumber Analyte
8260 Low Level Volatiles
22L0202-01 1,2-Dichloroethane-d4
22L0202-01 4-Bromofluorobenzene
22L0202-01 Toluene-dB
8260 Low Level Volatiles
22L0202-02 1,2-Dichloroethane-d4
22L0202-02
22L0202-02
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22L0202-03 Toluene-dB
22L0202-03
22L0202-03
4-Bromofluorobenzene
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22L0202-04 1,2-Dichloroethane-d4
22L0202-04
22L0202-04
Toluene-dB
4-Bromofluorobenzene
8260 Low Level Volatiles
22L0202-05 Toluene-dB
22L0202-05
22L0202-05
4-Bromofluorobenzene
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22L0202-06 Toluene-dB
22L0202-06 1,2-Dichloroethane-d4
22L0202-06 4-Bromofluorobenzene
8260 Low Level Volatiles
22L0202-07 Toluene-dB
22L0202-07 4-Bromofluorobenzene
22L0202-07 1,2-Dichloroethane-d4
8260 Low Level Volatiles
2L0202-08 1,2-Dichloroethane-d4
2L0202-08· 4-Bromofluorobenzene
NO#: 22L0202
·. ChemtechFord. com
Result
9.46
9.70
10.0
9.53
9.71
10.0
10.6
9.69
9.63
9.24
10.8
9.81
10.0
9.58
9.72
10.7
9.67
9.71
10.0
9.66
9.56
9.47
9.80
Spklvl
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
%Rec
94.6
97.0
100
95.3
97.1
100
106
96.9
96.3
92.4
108
98.1
100
95.8
97.2
107
96.7
97.1
100
96.6
95.6
94.7
98.0
LCL UCL Qualifier
64.2 126
71.4 125
63.2 129
64.2 126
71.4 125
63.2 129
63.2 129
71.4 125
64.2 126
64.2 126
63.2 129
71.4 125
63.2 129
71.4 125
64.2 126
63.2 129
64.2 126
71.4 125
-
63.2 129
71.4 125
64.2 126
=-
64.2 126
71.4 125
Page 30 of 32
22L0202-08 Toluene-dB
8260 Low Level Volatiles
22L0202-09 Toluene-dB
22L0202-09
22L0202-09
4-Bromofluorobenzene
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22L0202-10 1,2-Dichloroethane-d4
22L0202-10
22L0202-10
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22L0202-11 4-Bromofluorobenzene
22L0202-11
22L0202-11
1,2-Dichloroethane-d4
Toluene-dB
8260 Low Level Volatiles
22L0202-12 Toluene-dB
22L0202-12
22L0202-12
1,2-Dichloroethane-d4
4-Bromofluorobenzene
8260 Low Level Volatiles
22L0202-13 1,2-Dichloroethane-d4
22L0202-13
22L0202-13
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22L0202-14 1,2-Dichloroethane-d4
22L0202-14
22L0202-14
Toluene-dB
4-Bromofluorobenzene
8260 Low Level Volatiles
22L0202-15 1,2-Dichloroethane-d4
22L0202-15
22L0202-15
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
~2L0202-16 4-Bromofluorobenzene
2L0202-16
2L0202-16
NO#: 22L0202
1,2-Dichloroethane-d4
Toluene-dB
. ChemtechFord. com
10.0
10.6
9.85
9.54
9.17
9.63
10.0
10.0
9.74
10.6
10.6
9.51
9.72
9.50
9.88
10.0
9.59
10.0
9.61
9.49
9.64
10.8
9.38
9.87
9.70
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
100
106
98.5
95.4
91 .7
96.3
100
100
97.4
106
106
95.1
97.2
95.0
98.8
100
95.9
100
96.1
94.9
96.4
108
93.8
98.7
97.0
63.2 129
63.2 129
71.4 125
64.2 126
64.2 126
71.4 125
63.2 129
71.4 125
64.2 126
63.2 129
63.2 129
64.2 126
71.4 125
64.2 126
71.4 125
63.2 129
64.2 126
63.2 129
71.4 125
64.2 126
71.4 125
63.2 129
71.4 125
64.2 126
63.2 129
Page 31 of 32
8260 Low Level Volatiles
22L0202-17 Toluene-dB
22L0202-17
22L0202-17
WO#: 22L0202
1,2-Oichloroethane-d4
4-Bromofluorobenzene
-v. Chem tech Ford. com
10.3
8.94
9.59
10.0
10.0
10.0
103
89.4
95.9
63.2 129
64.2 126
71.4 125
:
Page 32 of 32
9632 South 500 West
CHEMTECH·FORD
L DO ~,\TO IES
12/21/2022
Work Order: 22L0766
Project: 4th Quarter Chloroform 2022
Energy Fuels Resources, Inc.
Attn: Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Client Service Contact: 801.262. 7299
The analyses presented on th is report were performed in accordance with the
National Environmental Laboratory Accred.itation Program (NELAP) unless
noted in the comments, fl ags. or case narrative. Lf the report is 10 be used for
regulatory compliance, it should be presented in its entirety, and not be
altered.
Approved By:
Melissa Connolly, Project Manager
Sandy, Utah 84070 801.262.7299 Main 866 792.0093 Fax
Serving the lntermountain West since 1953
www.ChemtechFord.com
Page 1 of 41
I
CHEMTECH-FORD
LABOAArORIES
Chemtech-Ford Laboratories
Serving the lntermountain West Since 1953
9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Energy Fuels Resources, Inc.
Project: 4th Quarter Chloroform 2022
Project Manager: Tanner Holliday
Laboratory ID
22L0766-01
22L0766-02
22L0766-03
22L0766-04
22L0766-05
22L0766-06
22L0766-07
22L0766-08
22L0766-09
22L0766-10
22L0766-11
22L0766-12
22L0766-13
22L0766-14
22L0766-15
22L0766-16
22L0766-17
22L0766-18
22L0766-19
22L0766-20
22L0766-21
22L0766-22
22L0766-23
22L0766-24
22L0766-25
Sample Name
TW4-03R_ 12062022
TW4-33R_ 12082022
TW4-03 _ 12072022
TW4-42_ 12072022
TW4-12_12072022
TW4-28 _ 12072022
TW4-32_12072022
TW4-13 _ 12072022
TW4-36 _ 12072022
TW4-31_12072022
TW4-43_ 12072022
TW4-35 _ 12072022
TW4-23_ 12072022
TW4-38 _ 12072022
TW4-65_12072022
MW-32_ 12082022
TW4-14_12082022
TW4-34_12082022
TW4-06 _ 12082022
TW4-27_12082022
TW4-09_12082022
TW4-05 _ 12082022
TW4-08_12082022
TW4-70_12082022
Trip Blank
Sample Preparation
Work Order Report Narrative
All samples were prepared within method specified holding times. No preparation issues were noted.
Method Blanks
All blank values were within method acceptance criteria. No blank values exceeded the minimum reporting limit for any
analysis in this work order.
Laboratory Control Samples
All laboratory control samples were within method acceptance criteria, except as noted by qualifying flags. Batches
BWL0507 and BWL0577 had low LCS recoveries for Carbon Tetrachloride. It is important to note that certain flags on an
individual analyte do not constitute failure of the method as a whole. EPA methodologies recognize that it may not be
possible for every compound to meet all recovery or percent difference criteria . The batch passed required method criteria
for this analyte.
Method Spikes
All method spike recoveries were within method acceptance criteria, except as noted by qualifying flags.
Method Spike Duplicates
All method spike duplicates were within method acceptance criteria, except as noted by qualifying flags.
Corrective Actions
rhere are no corrective actions associated with this work order.
Page 2 of 41
I
CHEMTECH-FORD
lABOkATO~IES
Chemtech-Ford Laboratories
Serving the lntermountain West Since 1953
9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Certificate of Analysis
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Report Footnotes
Abbreviations
ND • Not dctec1ed a1 !ho corresponding Minimum Reponing Limil (MRL).
PO#:
Receipt: 12/9/22 9:54@ 3.8 °C
Date Reported: 12/21/2022
Project Name: 4th Quarter Chloroform 2022
I mW!--on~ milligram per li1er or I mg/ks a one milligram per kilogram = 1 part per million.
I ug/L • one microgmm per li1cr or I us!k£~one microgram per ~ilogrmn = 1 part per billion.
I ng/L c one nnnogmm per Hier or 1 ng/kg • one nanogram per kilogram = 1 part per trillion.
Flag Descriptions
J-LOW-L = Estimated low due to low recovery ofLCS
roiect Name: 4th Quarter Chloroform 2022
ww. ChemtechFord. com
CtF WO#: 22L0766
Page 28 of 41
I
American West
Analytical Laboratories
463 W. 3600 S. Sall Lake City, UT 84115
Phone # [phone] Toll Free # [phone] L~ Fax# [phone] Email [e-mail]
www.awal-labs.com
Client: Energy Fuela Re-urces, Inc.
Address: 6425 S. Hwy. 191
Blanding, UT 84511
Contact: Tanner HoWclay
Phone#: [phone] Cell#:
Emaij: [e-mail]; KWelnel(a;ener.,taela.eom
Project Name: 4th Quarter Chloroform 2022
Project#:
PO#:
Sampler Name: Tanner HoWclay
J-.,·J-_ /-. C 7 (y~ Date
Sample JD: Samoled
TW4-03R_1206202.2 12/6/2022
, TW4-33R_12082022 12/8/2022
-J 1 TW4-03_12072022 12/7/2022
, TW+.42_12072022 12/7/2022
, TW4-12_12072022 12/7/2022
0 l TW4-28_12072022 12/7/2022
TW4-32_12072022 12/7/2022
l TW4-13_12072022 12/7/2022
l TW4-36_12072022 12/7/2022
o TW4-31_12072022 12/7/2022
I TW4-43_12072022 12/7/2022
2 TW4-36_12072022 12/7/2022
l TW4-23_12072022 12/7/2022
RoUnquio'1od ~ ~ -,r; O.llo:
swu,•ur• -II '1 ..<f, ">"1'2IQl2022
~ -1/ Tjtr,4: •i")"T/ Pdnl Nome: DoonL--
Rolinq11l-by. Oat•
si-..i.1i..o
Time:
P1lnl Name:
Rotfnq,.qhod bv: OMO' -Tfmo.
0111.6!
Tim«
IP11ntN.omo.
"~, ,2 ,, ..
I
Time
Samoled
735
916
734
746
755
809
816
822
830
840
848
857
907
R~•ad,bY-'f(
StoMIIJl'O
CHAIN OF CUSTODY
All analY'ls Villi bo 0011dudod using NElAP acaedllad mothod• nnd all data Viln bo reported using AWAL·• stendonl nnalyto lists and reporting
Umil'a (POl) unk,ss speetRcally requMlad oiMfWIM on \his Chain of CU&tody ondlo, ottnc.hed doeumontl'.IIJon.
QC Level: I Tum Around Time: Unless other errangumOfltS have been made,
signed reports will bo &mailed by 5:00 pm on
3 Standard the day lhey are due.
X Include EDD:
LOCUS UPLOAD
&XCEL
Field Fitterad For.
For Compliance With:
0 NELAP
0 RCRA
0 CWA
0 SOWA
0 ELAP/A2LA
c' 0 NLLAP ~ c:i □ Non-Compliance t;j 0 G' a other.
!2. "1 I!! >< .. 0 G) 0 IO C: :s (') ~ ~ 0 c:, "' c:, ~ Known Hazards 0 .. I!:: It)
0 ti ::t. .. a. t.l & 0 ffi ~ ti g .. "' Samole Comments
5 w X X X Do NOT use for QC
s w X X X Do NOT use tor QC
5 w X X X
s w X X X
s w X X X
s w X X X
5 w X X X
5 w X X X
s w X X X
s w X X X
5 w X X X
5 w X X X
5 w X X X
\ I\ u )IJl ,-rd:-A) 0"'tJ -0 -z.z. I q : SLf Special Instructions:
PrinlN~\('""' \ lP ~ ~\. tA P TTmo. ~rst.,/
AWAL lab Sample Set#
Page 1 of 2
l°ue O;ite: I
Laboratory Use Only
SlfflploaWorr,;
1 Shlpped €deliv-----
2 Ambl~7liir_/
Tempellllure ~ ·c 3
4 Received Brokon/1.esklng
(lmpropeny s-~
y NJ
5 G,FlioJ"rty Preserved N
Checked at bench
y N
8 Received Within
c,rngTlmoa N
~opoW8",
I on Outer Package
y N NA
2 U-on "" utor Package
y N NA
3 Present on Sample
y N "
4 Unbroken on Sample
y N NA
Olsaopolldo, Belween Sample
y N Ulbole and COC Reco'c:)
Rocolvad by: Dato~ See the Analytical Scope of Work for Reporting Limits and voe
IC:.LnMfure 8.Jlolytc list.
Tln,o:
PJlnt Nnmr.
Roeeavad by: Om:1;
'"'"""'"'• Tlmo:
Print N""'°:
Rocalvad by: Do!o:
lru.noturo
nmo:
PrlnlNlllfflo:
Page 29 of 41
American West
Analytical Laboratories
463 W. 3600 S. Salt Lake City, UT 64115
Phone# [phone] Toll Free# (888) 263~686
Fax# [phone] Email [e-mail] L-~ www.awal-labs.com
Client: Energy Fuela Resources, Inc.
Address: 6425 B. Rwy. 191
Blanding, UT 84511
Contact: Tanner RoWclay
Phone#: [phone] Cell#:
Email: tholllday@enera:,fuela,com; KWeblel@;'ellera:,fl,ela.com
Project Name: 4th Quarter Chloroform 2022
Project#:
PO#:
Sampler Name: Tanner RoWclay
2--·iJ-i_) 7 if v:
I◄ I TW4-38_12072022
15 ; TW4-66_12072022
10 I MW-32_12082022
' TW4-l4_12082022 17
18 I TW4-34_12082022
10 • TW4-06_12082022
20 > TW4-27 _12082022
1 TW4-09_12082022
1 TW4-06_12082022 22
23 1 TW4-08_12082022
24 1 TW4-70_12082022
25 ; TRIP BLA1fK
I 20
~oil-
S1nna1..-• .-:.-<
Sample ID:
---7--.. ·--~A-;;
-.r,
/ PMtNomo; D_l.,.,,,_,
Roli~by" ls..,.,,,.o
Prile!'I..-
Ral~by:
---
IPrfntNom•
-. --7 ,
Date
Sampled
12/7/2022
12/7/2022
12/8/2022
12/8/2022
12/8/2022
12/8/2022
12/8/2022
12/8/2022
12/8/2022
12/8/2022
12/8/2022
12/6/2022
Dn.L7'1mi2022
rnmo7 ..-:. j -S-l/
O>to: I
Tima:
Dllto~
rimot
-
-11•··-·
Time
Sampled
916
766
1210
800
809
817
826
836
846
863
836
736
RoooiYOd,-Y SVl,ntturo
Prf.nlNIWl1e:-f
RocelYOd by:
Si0na1U<O
Print Nnmo:
Recet,od by:
k'"""'"'•
Pdn1Namo:
RocelvOd by:
S.lonature
PtlntN.61'\0"
I
CHAIN OF CUSTODY
All enelygls will bo conductod using NELAP eocr«Jd~od mothods Md ell date will bo ••Pollod using AWAL's slandonl nnolyta lists and reporting
limlle (POL) unlesa specmca•y rOqtJ8$0d Of.hflrwiae on I his Chain. ol Custody and/or attached documonfsUon.
QC Level: I Tum Around Time: Unless other arrangements have been made,
signed reports will bo emailed by 5:00 pm on
3 Standard lhe day they ara due,
X Include EDD:
LOCUS UPLOAD
&XCEL
Field Fitered For.
For Compliance With:
□ NELAP
D RCRA
□ CWA
□ SDWA
□ ELAP/ A2LA
c' □ NLLAP ~ c □ Non-Compliance ~ 0 D' D Olher.
I!! !2. "l
>< .. 0 ~ :s C') 0 10
~ ~ 2 0 ('I 0 ~ Known Hazards 8 ., ,.,, • ..... :!:. 'li N 0 & 'c E i u g ,. Sample Comments ... "'
5 w X X X
5 w X X X
s w X X X
5 w X X X
s w X X X
5 w X X X
s w X X X
s w X X X
5 w X X X
5 w X X X
s w X X X
3 w X
\ ~l 1 lf~ Oil!ii_..q ."l.7 Special Instructions:
I\\C-\...,..,-, ,C) ~ ~ JJ\ C: rnmr. q ~5 L(
AWAL Lab Sample Set#
Page 2 of 2
l°ue Date:
Laboratory Use Only
SomJ)INWOW. _,
1 ShlOPOd r hor,d ~
2 Amblo rChllq
3 Tcwnpoudum "'C
4 Received Broken/leaking
(lm_,iy Sealed) l
y C:
5~P-od y N
otbonch
y N
6 Received Within c'ngnm .. N
ilan,-T-W11:
1 '-PSuterPackago Y N NA
2 Unbroken I/IOI Package
y N NA
3 Present on Sample
y N NA
• Unbroken on Sample
y N NA
OltetOl)Ondos B-Sample
WIIIOlo nnd COC Rea>rd(:
y N )
-· See the Analytical Scope of Work for Reporting Limits and VOC
annlyte list. Tlmoc
Dato:
Time:
Date:
Time:
Page 30 of 41
I
Work Order# ).,;_L 0 1 (( Cr
Delivery Method:
D UPS
d
D USPS
h h Launer
Courier
t' · Chemtech Lot-#
' "' Sample # Cpnt,atner Preservative
t' I -2,t/ 11 /1 !l?JC'
"Jj 12..3 2-
(..0 \,,,) /;,) .)·
z._::__; t.,J (J.) /2. -~./S
! "1' ""' ~
i
l J· .J
I t : -e j ~ I .If I li
tl I i s
J .!i I ...
Misc
Volume
!oz/ml)
CHEMTECH FORD LABORATORIES
Sample Receipt
Receiving Temperature oc
-· .... 1'" -·
1 ~ ~ ~ :~, l~·~-l'.: ;:• j' ~ . ' ~-·"' ~ ~ . -•_._ JI; ~ ~ ,
.Comm_e_nts
CHEMTECH-FORD
LABOR,\TORl(5
$1unple· Condltion
(clteck If yes I
0 Custody Seals
0 Containers Intact
0 COC can be matched to bottles
0 Received on Ice
0 Correct Contamers(s)
D Sufficent Sample Volume
0 Headspace Present (V0C)
0 Temperature Blank
D Received within Holding Time
Plastic CQi:ltainers
A· Ptaulc Unprosiuvcd
B· Miscellaneous Plastic
C· Cyanide Qt (Na0H)
E-Coliform/Ecoli/HPC
F• Sulfide Qt (Zn Acetate)
l-Mercury 1631
M• Metals Pint (HN03)
N• Nutrient Pint (H2S04 I
R-Radiological (HN03)
S· Sludge Cups/Tubs
Q-Plastic Bag
Glass Containers
D· 625 (Na2S203)
G· Glass Unpreserved
H· HAAs (NH4CI)
I• 508/515/525 (Na2503)
.K· 515.3 Herbicides
0 -Oil & Grease (HCI)
p. Phenols (H2S04)
T• T0C/T0X (H3P04 I
U-531 (MCAA, Na2S203)
V• 524/THMs (Ascorbic Acid)
W• 8260 voe (1:1 HCI)
X· Vial Unpreserved
y. 624/504 (Na2S203)
Z· Miscellaneous Glass
Page 31 of 41
QC Report for Work Order (WO) -22L0766
Analyte %Rec RPO Limits RPO Max Result Source Cone Spk Value MRL OF
Blank -EPA 300.0
QC Sample ID: BWL0475-BLKI Batch: B WL04 7 5
Date Prepared: 12/12/2022 Date Analyzed: 12/12/2022 Units: mg/L
Chloride ND 1.00 1.00
QC Sample ID: BWL0528-BLK1 Batch: BWL0528
Date Prepared: 12/13/2022 Date Analyzed: 12/13/2022 Units: mg/L
Chloride ND 1.00 1.00
QC Sample ID: BWL0569-BLK1 Batch: BWL0569
Date Prepared: 12/14/2022 Date Analyzed: 12/14/2022 Units: mg/L
Chloride ND 1.00 1.00
LCS -EPA 300.0
QC Sample ID: BWL0475-BS1 Batch: BWL0475
Date Prepared: 12/12/2022 Date Analyzed: 12/12/2022 Units: mg/L
Chloride 98.8 90-110 49.4 50.0 1.00 1.00
QC Sample ID: BWL0528-BS1 Batch: BWL0528
Date Prepared: 12/13/2022 Date Analyzed: 12/13/2022 Units: mg/L
Chloride 98.1 90 -110 49.1 50.0 1.00 1.00
QC Sample ID: BWL0569-BS1 Batch: BWL0569
Date Prepared: 12/14/2022 Date Analyzed: 12/14/2022 Units: mg/L
Chloride 99.1 90 -110 49.6 50.0 1.00 1.00
Matrix Spike -EPA 300.0
QC Sample ID: BWL0475-MSI Batch: BWL0475 QC Source Sample: XXXXXXX-XX
Date Prepared: 12/12/2022 Date Analyzed: 12/12/2022 Units: mg/L
Chloride 100 80 -120 291 191 100 11.0 1.00
QC Sample ID: BWL0475-MS2 Batch: BWL0475 QC Source Sample: XXXXXXX-XX
Date Prepared: 12/12/2022 Date Analyzed: 12/12/2022 Units: mg/L
Chloride 89.4 80 -120 155 65.6 100 11.0 1.00
QC Sample ID: BWL0528-MS1 Batch: BWL0528 QC Source Sample: 22L0766-11
Date Prepared: 12/13/2022 Date Analyzed: 12/13/2022 Units: mg/L
Chloride 91.6 80 -120 86.5 40.7 50.0 5.50 1.00
'.;1C Sample ID: BWL0528-MS2 Batch: BWL0528 QC Source Sample: 22L0766-12
)ate Prepared: 12/13/2022 Date Analyzed: 12/13/2022 Units: mg/L
:hloride 97.6 80 -120 76.2 27.4 50.0 5.50 1.00
?C Sample ID: BWL0569-MS 1 Batch: BWL0569 QC Source Sample: 22L0766-03
late Prepared: 12/14/2022 Date Analyzed: 12/14/2022 Units: mg/L
hloride 104 80 -120 73.4 21 .5 50.0 5.50 1.00
C Sample ID: BWL0569-MS2 Batch: BWL0569 QC Source Sample: 22L0766-04
ate Prepared: 12/14/2022 Date Analyzed: 12/14/2022 Units: mg/L
1loride 89.9 80-120 60.6 15.6 50.0 5.50 1.00
Matrix Spike Dup -EPA 300.0
: Sample ID: BWL0475-MSDI Batch: B WL04 7 5 QC Source Sample: XXXXXXX-XX
te Prepared: 12/12/2022 Date Analyzed: 12/12/2022 Units: mg/L
oride 98.9 0.525 80 -120 20 289 191 100 11.0 1.00
Sample ID: BWL0475-MSD2 Batch: BWL0475 QC Source Sample: XXXXXXX-XX
e Prepared: 12/12/2022 Date Analyzed: 12/12/2022 Units: mg/L
>ride 90.0 0.367 80-120 20 156 65.6 100 11 .0 1.00
WO#: 22L0766
v. ChemtechFord. com Page 32 of 41
QC Report for Work Order (WO) -22L0766
Analyte % Rec RPO Limits RPO Max Result Source Cone Spk Value MRL OF
Matrix Spike Dup -EPA 300.0 (cont.)
QC Sample ID: BWL0528-MSD1 Batch: BWL0528 QC Source Sample: 22L0766-I I
Date Prepared: 12/13/2022 Date Analyzed: 12/13/2022 Units: mg/L
Chloride 93.2 0.898 80 -120 20 87.2 40.7 50.0 5.50 1.00
QC Sample ID: BWL0528-MSD2 Batch: BWL0528 QC Source Sample: 22L0766-12
Date Prepared: 12/13/2022 Date Analyzed: 12/13/2022 Units: mg/L
Chloride 100 1.68 80 -120 20 77.5 27.4 50.0 5.50 1.00
QC Sample ID: BWL0569-MSDI Batch: BWL0569 QC Source Sample: 22L0766-03
Date Prepared: 12/14/2022 Date Analyzed: 12/14/2022 Units: mg/L
Chloride 94.7 6.37 80 -120 20 68.9 21.5 50.0 5.50 1.00
QC Sample ID: BWL0569-MSD2 Batch: BWL0569 QC Source Sample: 22L0766-04
Date Prepared: 12/14/2022 DateAnalyzed: 12/14/2022 Units: mg/L
Chloride 95.7 4.68 80 -120 20 63.5 15.6 50.0 5.50 1.00
F WO#: 22L0766
ivw. ChemtechFord.com Page 33 of 41
QC Report for Work Order (WO) -22L0766
Analyte %Rec RPO Limits RPO Max Result Source Cone SpkValue MRL OF
Blank -EPA 353.2
QC Sample ID: BWL0530-BLK1 Batch: BWL0530
Date Prepared: 12/13/2022 Date Analyzed: 12/14/2022 Units: mg/L
Nitrate + Nitrite, Total, as N ND 0.100 1.00
QC Sample ID: BWL0531-BLK1 Batch: BWL0531
Date Prepared: 12/13/2022 Date Analyzed: 12/14/2022 Units: mg/L
Nitrate+ Nitrite, Total, as N ND 0.100 1.00
LCS -EPA 353.2
QC Sample ID: BWL0530-BS1 Batch: BWL0530
Date Prepared: 12/13/2022 Date Analyzed: 12/14/2022 Units: mg/L
Nitrate + Nitrite, Total, as N 99.6 80 -120 1.99 2.00 0.100 1.00
QC Sample ID: BWL0531-BS1 Batch: BWL053 l
Date Prepared: 12/13/2022 Date Analyzed: l 2/14/2022 Units: mg/L
Nitrate + Nitrite, Total, as N 105 80 -120 2.09 2.00 0.100 1.00
Matrix Spike -EPA 353.2
QC Sample ID: BWL0530-MS1 Batch: BWL0530 QC Source Sample: 22L0766-2 l
Date Prepared: 12/13/2022 Date Analyzed: 12/14/2022 Units: mg/L
Nitrate + Nitrite, Total, as N 113 80 -120 1.80 0.676 1.00 0.100 1.00
QC Sample ID: BWL0530-MS2 Batch: BWL0530 QC Source Sample: 22L0766-22
Date Prepared: 12/13/2022 Date Analyzed: 12/15/2022 Units: mg/L
Nitrate+ Nitrite, Total, as N 222 80 -120 9.76 7.54 1.00 0.500 5.00
QM-RPO -The recovery was outside acceptance limits for the MS and/or MSD. The RPO between the MS and MSD
was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the
acceptable recovery of the LCS and the RPO.
QC Sample ID: BWL0531-MSI Batch: BWL053 l QC Source Sample: 22L0766-0 I
Date Prepared: 12/13/2022 Date Analyzed: 12/15/2022 Units: mg/L
Nitrate+ Nitrite, Total, as N 98.9 80 -120 0.989 ND 1.00 0.100 1.00
QC Sample ID: BWL0531-MS2 Batch: BWL0531 QC Source Sample: 22L0766-03
Date Prepared: 12/13/2022 Date Analyzed: 12/15/2022 Units: mg/L
Nitrate + Nitrite, Total, as N 96.1 80 -120 7.60 6.64 1.00 0.200 2.00
Matrix Spike Dup -EPA 353.2
QC Sample ID: BWL0530-MSD1 Batch: BWL0530 QC Source Sample: 22L0766-2 l
Date Prepared: 12/13/2022 Date Analyzed: 12/14/2022 Units: mg/L
Nitrate + Nitrite, Total, as N 113 0.0554 80 -120 20 1.80 0.676 1.00 0.100 1.00
QC Sample ID: BWL0530-MSD2 Batch: BWL0530 QC Source Sample: 22L0766-22
Date Prepared: 12/13/2022 Date Analyzed: 12/15/2022 Units: mg/L
Nitrate + Nitrite, Total, as N 233 1.06 80 -120 20 9.87 7.54 1.00 0.500 5.00
QM-RPD -The recovery was outside acceptance limits for the MS and/or MSD. The RPO between the MS and MSD
was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the
acceptable recovery of the LCS and the RPD.
2C Sample ID: BWL053 l-MSD1 Batch: BWL053 l QC Source Sample: 22L0766-0l .-
>ate Prepared: 12/13/2022 Date Analyzed: 12/15/2022 Units: mg/L :
litrate + Nitrite, Total, as N 103 3.67 80 -120 20 1.03 ND 1.00 0.100 1.00
iC Sample ID: BWL053 l-MSD2 Batch: BWL0531 QC Source Sample: 22L0766-03
ate Prepared: 12/13/2022 Date Analyzed: 12/15/2022 Units: mg/L
itrate + Nitrite, Total, as N 102 0.734 80 -120 20 7.66 6.64 1.00 0.200 2.00
tF WO#: 22L0766
NW. ChemtechFord.com Page 34 of 41
QC Report for Work Order (WO) -22L0766
Analyte %Rec RPO Limits RPO Max Result Source Cone SpkValue MRL OF
Blank -EPA 82600 /5030A
QC Sample ID: BWL0507-BLKl Batch: BWL0507
Date Prepared: 12/12/2022 Date Analyzed: l 2/12/2022 Units: ug/L
Carbon Tetrachloride ND 1.0 1.00
J-LOW-L -Estimated low due to low recovery of LCS
Chloroform ND 1.0 1.00
Chloromethane ND 1.0 1.00
Methylene Chloride ND 1.0 1.00
QC Sample ID: BWL0577-BLKl Batch: BWL0577
Date Prepared: 12/13/2022 Date Analyzed: 12/13/2022 Units: ug/L
Carbon Tetrachloride ND 1.0 1.00
J-LOW-L -Estimated low due to low recovery of LCS
Chloroform ND 1.0 1.00
Chloromethane ND 1.0 1.00
Methylene Chloride ND 1.0 1.00
LCS -EPA 82600 /5030A
QC Sample ID: BWL0507-BSl Batch: BWL0507
Date Prepared: 12/12/2022 Date Analyzed: 12/12/2022 Units: ug/L
Carbon Tetrachloride 67.6 70 • 130 6.76 10.0 1.0 1.00
J-LOW-L -Estimated low due to low recovery of LCS
Chloroform 92.5 70 -130 9.25 10.0 1.0 1.00
Chloromethane 83.4 70 • 130 8.34 10.0 1.0 1.00
Methylene Chloride 96.4 70-130 9.64 10.0 1.0 1.00
QC Sample ID: BWL0577-BSl Batch: BWL0577
Date Prepared: 12/13/2022 Date Analyzed: 12/13/2022 Units: ug/L
Carbon Tetrachloride 62.0 70 -130 6.20 10.0 1.0 1.00
J-LOW-L -Estimated low due to low recovery of LCS
Chloroform 100 70 -130 10.0 10.0 1.0 1.00
Chloromethane 89.3 70 • 130 8.93 10.0 1.0 1.00
Methylene Chloride 99.0 70 -130 9.90 10.0 1.0 1.00
Matrix Spike -EPA 8260D /5030A
QC Sample ID: BWL0507-MSl Batch: BWL0507 QC Source Sample: 22L0766-03
Date Prepared: 12/12/2022 Date Analyzed: 12/12/2022 Units: ug/L
Carbon Tetrachloride 31.6 70 -130 15.8 ND 50.0 5.0 1.00
MS-Low -Estimated low due to Matrix Spike recovery.
Chloroform 87.0 70 -130 43.5 ND 50.0 5.0 1.00
Chloromethane 89.2 70 -130 44.6 ND 50.0 5.0 1.00
Methylene Chloride 99.1 70 -130 49.6 ND 50.0 5.0 1.00
QC Sample ID: BWL0577-MSl Batch: BWL0577 QC Source Sample: 22L0766-13
Date Prepared: 12/13/2022 Date Analyzed: 12/13/2022 Units: ug/L
~arbon Tetrachloride 67.5 70 -130 33.8 ND 50.0 5.0 1.00
MS-Low -Estimated low due to Matrix Spike recovery.
::hloroform 105 70 -130 52.5 ND 50.0 5.0 1.00
;hloromethane 91.2 70 • 130 45.6 ND 50.0 5.0 1.00
nethylene Chloride 94.4 70 -130 47.2 ND 50.0 5.0 1.00
Matrix Spike Oup -EPA 8260D /5030A
IC Sample ID: BWL0507-MSDI Batch: BWL0507 QC Source Sample: 22L0766-03
iate Prepared: 12/12/2022 Date Analyzed: 12/12/2022 Units: ug/L
arbon Tetrachloride 31 .0 1.92 70 • 130 20 15.5 ND 50.0 5.0 1.00
MS-Low -Estimated low due to Matrix Spike recovery.
:tF WO#: 22L0766
ww. ChemtechFord. com Page 35 of 41
QC Report for Work Order (WO) -22L0766
Analyte %Rec RPO Limits RPO Max Result Source Cone SpkValue MRL OF
Matrix Spike Dup -EPA 8260D /5030A (cont.)
QC Sample ID: BWL0507-MSD1 Batch: BWL0507 QC Source Sample: 22L0766-03
Date Prepared: 12/12/2022 Date Analyzed: 12/12/2022 Units: ug/L
Chloroform 92.0 5.59 70 -130 20 46.0 ND 50.0 5.0 1.00
Chloromethane 88.6 0.675 70 -130 20 44.3 ND 50.0 5.0 1.00
Methylene Chloride 90.4 9.18 70 -130 20 45.2 ND 50.0 5.0 1.00
QC Sample ID: BWL0577-MSD1 Batch: BWL0577 QC Source Sample: 22L0766-13
Date Prepared: 12/13/2022 Date Analyzed: 12/13/2022 Units: ug/L
Carbon Tetrachloride 58.5 14.3 70 -130 20 29.2 ND 50.0 5.0 1.00
MS-Low-Estimated low due to Matrix Spike recovery.
Chloroform 99.0 5.88 70 -130 20 49.5 ND 50.0 5.0 1.00
Chloromethane 91.0 0.220 70 -130 20 45.5 ND 50.0 5.0 1.00
Methylene Chloride 96.1 1-78 70 -130 20 48.0 ND 50.0 5.0 1.00
:tF WO#: 22L0766
IWW. ChemtechFord.com Page 36 of 41
Surrogates Report for Work Order (WO) -22L0766
QCID Analyte % Rec LCL UCL Result Spk Value Batch OF
Blank -EPA 82600 /5030A
BWL0507-BLK1 1,2-Dichloroethane-d4 102 64.2 126 10.2 10.0 BWL0507 1.00
BWL0507-BLK1 4-Bromofluorobenzene 118 71.4 125 11.8 10.0 BWL0507 1.00
BWL0507-BLK1 Toluene-dB 100 63.2 129 10.0 10.0 BWL0507 1.00
BWL0577-BLK 1 1,2-Dichloroethane-d4 107 64.2 126 10.7 10.0 BWL.0577 1.00
BWL0577-BLK1 4-Bromofluorobenzene 110 71.4 125 11.0 10.0 BWL0577 1.00
BWL0577-BLK 1 Toluene-dB 100 63.2 129 10.0 10.0 BWL.0577 1.00
LCS -EPA 82600 /5030A
BWL0507-BS1 1,2-Dichloroethane-d4 101 64.2 126 10.1 10.0 BWL0507 1.00
BWL0507-8S1 4-Bromofluorobenzene 93.7 71.4 125 9.37 10.0 BWL.0507 1.00
BWL0507-8S1 Toluene-dB 100 63.2 129 10.0 10.0 BWL.0507 1.00
BWL0577-BS1 1,2-Dichloroethane-d4 108 64.2 126 10.8 10.0 BWL.0577 1.00
BWL0577-8S1 4-Bromofluorobenzene 95.7 71.4 125 9.57 10.0 BWL.0577 1.00
BWL0577-BS1 Toluene-dB 100 63.2 129 10.0 10.0 BWL.0577 1.00
Matrix Spike -EPA 82600 /5030A
BWL0507-MS1 1,2-Dichloroethane-d4 104 64.2 126 52.0 50.0 BWL.0507 1.00
BWL0507-MS1 4-Bromofluorobenzene 123 71.4 125 61.4 50.0 BWL.0507 1.00
BWL0507-MS1 Toluene-dB 110 63 .2 129 55.2 50.0 BWL.0507 1.00
BWL0577-MS1 1,2-Dichloroethane-d4 108 64.2 126 54.1 50.0 BWL0577 1.00
BWL0577-MS1 4-Bromofluorobenzene 98.7 71.4 125 49.4 50.0 BWL.0577 1.00
BWL0577-MS1 Toluene-dB 102 63.2 129 51.0 50.0 BWL.0577 1.00
Matrix Spike Oup -EPA 82600 /5030A
BWL0507-MSD1 1,2-Dichloroethane-d4 111 64.2 126 55.4 50.0 BWL.0507 1.00
BWL0507-MSD1 4-Bromofluorobenzene 102 71.4 125 51.0 50.0 BWL.0507 1.00
BWL0507-MSD1 Toluene-dB 101 63.2 129 50.6 50.0 BWL.0507 1.00
BWL0577-MSD1 1,2-Dichloroethane-d4 109 64.2 126 54.5 50.0 BWL.0577 1.00
BWL0577-MSD1 4-Bromofluorobenzene 99.1 71.4 125 49.6 50.0 BWL0577 1.00
BWL0577-MSD1 Toluene-dB 103 63.2 129 51 .5 50.0 BWL.0577 1.00
=
:tF WO#: 22L0766
ww. ChemtechFord. com Page 37 of 41
Surrogate Recoveries (Field Samples)
LabNumber Analyte
8260 Low Level Volatiles
22L0766-01 4-Bromofluorobenzene
22L0766-01 Toluene-dB
22L0766-01 1,2-Dichloroethane-d4
8260 Low Level Volatiles
22L0766-02 1,2-Dichloroethane-d4
22L0766-02
22L0766-02
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22L0766-03 1,2-Dichloroethane-d4
22L0766-03
22L0766-03
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22L0766-04 1,2-Dichloroethane-d4
22L0766-04
22L0766-04
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22L0766-05 4-Bromofluorobenzene
22L0766-05
22L0766-05
Toluene-dB
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22L0766-06 4-Bromofluorobenzene
22L0766-06
22L0766-06
Toluene-dB
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22L0766-07 1,2-Dichloroethane-d4
22L0766-07 4-Bromofluorobenzene
22L0766-07 Toluene-dB
8260 Low Level Volatiles
22L0766-08 1,2-Dichloroethane-d4
22L0766-08 4-Bromofluorobenzene
:tF WO#: 22L0766
!WW. Chem tech Ford. com
Result
11.6
10.0
9.95
10.6
11.4
10.0
10.2
11.6
9.95
11.0
11 .1
10.0
11 .6
10.0
11 .0
11 .9
9.76
10.9
11.4
10.6
10.1
11 .0
10.8
Spklvl
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
%Rec
116
100
99.5
106
114
100
102
116
99.5
110
111
100
116
100
110
119
97.6
109
114
106
101
110
108
LCL UCL Qualifier
71.4 125
63.2 129
64.2 126
64.2 126
71.4 125
63.2 129
64.2 126
71.4 125
63.2 129
64.2 126
71.4 125
63.2 129
71.4 125
63.2 129
64.2 126
71.4 125
63.2 129
64.2 126
64.2 126 r
71.4 125 :
63.2 129
E:
,::
64.2 126
71.4 125
Page 38 of 41
22L0766-0B Toluene-dB
8260 Low Level Volatiles
22L0766-09 1,2-Dichloroethane-d4
22L0766-09
22L0766-09
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22L0766-10 Toluene-dB
22L0766-10
22L0766-10
4-Bromofluorobenzene
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22L0766-11 Toluene-dB
22L0766-11
22L0766-11
4-Bromofluorobenzene
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22L0766-12 Toluene-dB
22L0766-12
22L0766-12
1,2-Dichloroethane-d4
4-Bromofluorobenzene
8260 Low Level Volatiles
22L0766-13 4-Bromofluorobenzene
22L0766-13
22L0766-13
1,2-Dichloroethane-d4
Toluene-dB
8260 Low Level Volatiles
22L0766-14 Toluene-dB
22L0766-14
22L0766-14
4-Bromofluorobenzene
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22L0766-15 1,2-Dichloroethane-d4
22L0766-15
22L0766-15
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22L0766-16 Toluene-dB
22L0766-16
22L0766-16
F WO#: 22L0766
4-Bromofluorobenzene
1,2-Dichloroethane-d4
vw. ChemtechFord. com
10.0
10.7
11.0
10.0
10.0
11.4
10.9
10.0
11.9
10.8
10.0
11 .3
11.2
11.0
10.2
9.97
10.0
11.4
10.1
10.3
11.4
10.0
10.1
11.2
10.2
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
100
107
110
100
100
114
109
100
119
108
100
113
112
110
102
99.7
100
114
101
103
114
100
101
112
102
63.2 129
64.2 126
71.4 125
63.2 129
63.2 129
71.4 125
64.2 126
63.2 129
71.4 125
64.2 126
63.2 129
64.2 126
71.4 125
71.4 125
64.2 126
63.2 129
63.2 129
71.4 125
64.2 126
64.2 126
71.4 125
63.2 129
63.2 129
71.4 125
64.2 126
Page 39 of 41
8260 Low Level Volatiles
22L0766-17 Toluene-dB
22L0766-17
22L0766-17
4-Bromofluorobenzene
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22L0766-1 B 1,2-Dichloroethane-d4
22L0766-1B
22L0766-1B
Toluene-dB
4-Bromofluorobenzene
8260 Low Level Volatiles
22L0766-19 4-Bromofluorobenzene
22L0766-19
22L0766-19
Toluene-dB
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22L0766-20 1,2-Dichloroethane-d4
22L0766-20
22L0766-20
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22L0766-21 4-Bromofluorobenzene
22L0766-21
22L0766-21
1,2-Dichloroethane-d4
Toluene-dB
8260 Low Level Volatiles
22L0766-22 Toluene-dB
22L0766-22
22L0766-22
1,2-Dichloroethane-d4
4-Bromofluorobenzene
8260 Low Level Volatiles
22L0766-23 Toluene-dB
22L0766-23 1,2-Dichloroethane-d4
22L0766-23 4-Bromofluorobenzene
8260 Low Level Volatiles
22L0766-24 1,2-Dichloroethane-d4
22L0766-24 4-Bromofluorobenzene
22L0766-24 Toluene-dB
8260 Low Level Volatiles
: WO#: 22L0766
w. ChemtechFord.com
10.0
11.1
10.4
10.4
10.0
11 .3
11.4
10.0
10.4
10.6
11.7
10.1
11 .2
10.7
10.0
10.0
10.9
11.2
10.0
10.1
11 .5
10.7
11.5
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
100
111
104
104
100
113
114
100
104
106
117
101
112
107
100
100
109
112
100
101
115
107
115
100
63.2 129
71.4 125
64.2 126
64.2 126
63.2 129
71.4 125
71.4 125
63.2 129
64.2 126
64.2 126
71.4 125
63.2 129
71.4 125
64.2 126
63.2 129
63.2 129
64.2 126
71 .4 125
63.2 129
64.2 126 ,.__ -
71.4 125
:
64.2 126
71.4 125 IE-
63.2 129
Page 40 of 41
22L0766-25
22L0766-25
22L0766-25
F WO#: 22L0766
Toluene-dB
1,2-Dichloroethane-d4
4-Bromofluorobenzene
vw. ChemtechFord.com
10.1
10.5
11.5
10.0
10.0
10.0
101
105
115
63.2 129
64.2 126
71.4 125
II.
Page 41 of 41
9632 South 500 West
I
CHEMTECH·FORD
L,,oo~,,T!)!!IES
1/3/2023
Work Order: 22L 1102
Project: 4th Quarter Chloroform 2022
Energy Fuels Resources, Inc.
Attn: Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Client Service Contact: 801 .262.7299
The analyses presented on this report \ ere performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, nags. or ca c narrative. If the report is to be used for
regulatory compliance. it should be presented in its entirety, and not be
altered.
Approved By: ~~
Melissa Connolly, Project Manager
Sandy, Utah 84070 801.262.7299 Main 866.792.0093 Fax
Serving the /ntermountain West since 1953
:
www.ChemtechFord.com
Page 1 of 20
CHEMTECH-FORD 1
LA801tArORIE$
Chemtech-F ord Laboratories
Serving the lntermountain West Since 1953
9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Energy Fuels Resources, Inc.
Project: 4th Quarter Chloroform 2022
Project Manager: Tanner Holliday
Laboratory ID
22L 1102-01
22L 1102-02
22L1102-03
22L 1102-04
22L 1102-05
22L1102-06
22L 1102-07
22L 1102-08
22L 1102-09
22L 1102-10
Sample Name
TW4-33_ 12092022 •
TW4-18 _ 12092022 •
TW4-30_ 12092022 •
TW4-16_12092022 •
TW4-10 _ 12092022 ~
TW4-29_ 12092022 •
TW4-07 _ 12092022 •
TW4-26_12092022 •
TW4-75_12092022 -
Trip Blank
Sample Preparation
Work Order Report Narrative
All samples were prepared within method specified holding times. No preparation issues were noted.
Method Blanks
All blank values were within method acceptance criteria. No blank values exceeded the minimum reporting limit for any
analysis in this work order.
Laboratory Control Samples
All laboratory control samples were within method acceptance criteria, except as noted by qualifying flags. Batch BWL0694
had a low LCS recovery for Chloromethane. II is important to note that certain flags on an individual analyte do not constitute
failure of the method as a whole. EPA methodologies recognize that it may not be possible for every compound to meet all
recovery or percent difference criteria . The batch passed required method criteria for this analyte.
Method Spikes
All method spike recoveries were within method acceptance criteria, except as noted by qualifying flags.
Method Spike Duplicates
All method spike duplicates were within method acceptance criteria, except as noted by qualifying flags.
Corrective Actions
There are no corrective actions associated with this work order.
Page 2 of 20
Ir
le
CHEMTECH-FORD
LAS:0J!Af0r-lJES
Chemtech-Ford Laboratories
Serving the lntermountain West Since 1953
9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Certificate of Analysis
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Report Footnotes
Abbreviations
ND = No1 do1cc1~d al tl1c com:spondlny Minimum Reponlng Limit (MRL).
PO#:
Receipt: 12/14/22 12:40@ o.o ·c
Date Reported: 1/3/2023
Project Name: 4th Quarter Chloroform 2022
I mGfL = on~ milligram per liter or I mg/kg-one milligram per kilogram = I pan per million.
I ug/L "'one microgrnm per liter or I ug/kg .,, one microgram per kilogram = 1 pan per billion.
I ng/L • one nonogrnm per liter or t ng/kg .,, one nanogram per kilogram = I part per trillion.
Flag Descriptions
J-LOW-L = Estimated low due to low recovery ofLCS
oiect Name: 4th Quarter Chloroform 2022
vw. ChemtechFord.com
CtF WO#: 22L1102
Page 13 of 20
)
American West
Analytical Laboratories
463 W. 3600 S. Salt Lake City, UT 84115
Phone# (801) 263~686 Toll Free# (888) 26~686
,
Address: 6425 S. Hwy. 191
Blanding, VT 84511
Contact: TllDJler HoWday
Phone#: [phone] Cell#:
Email: tlloW4al'@;-erc,1uela.eom; KWeble1'5C"Uafi,ela.com
Project Name: 4th Quarter Chloroform 2022
Project#:
PO#:
Sampler Name: TllDller HoWday
7-_·i., t-. I I (l 2.... Date
Samole ID: Samoled
TW-4-33_12092022 'f: 12/9/2022
TW4-l8_12092022 12/9/2022
TW-4-30.12092022 12/9/2022
TW4-16_12092022 12/9/2022
TW4-10.12092022 12/9/2022
TW-4-29_12092022 12/9/2022
TW4-07 _12092022 12/9/2022
TW4-26_12092022 12/9/2022
TW4-75_12092022 12/9/2022
10 > TRIPBLAllK 12/9/2022
I
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13 I
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CHAIN OF CUSTODY
All anelyt;i& will be conduded using NELAP aeaedlted methods and all data ~11 bo ropo,tad using AWAJ...•r,. 8'andnrd ona:lyto lists and reporting
limils (POL) unlesa specmcal/y requested olhervtise on this Chain or Custody orxs,o, .ettamed dOWm~RUon.
AWAL Lab Sample Set#
Page 1 of
I QC Level: I Tum Around Time: Unlesa olhof Olf'IN'Oon:ton11 h.tvo been mede, l°ue Date: I &lgned •"""'1• v.4n bo omollod by 5:00 pm on
3 Standard lho doy ll1ey 110 duo
X Include EDD: LaboratOI}' Use Only
LOCUS UPLOAD ,?-'" EXCEL l5omples Wono: 1,( / 7
Field Filtered For.
1~JIIM!dOIJverod / / ...
2 onto~ For Compllance With:
3 Tompon,lufe (7 ' a •c 0 NELAP
□ RCRA
□ CWA ◄ Reoelved Brokon/1.aaklng
□ SDWA ~-edcX □ ELAP/A2LA l J
o' □ NLLAP One vi;,) for 1W4-~. broken c:.-ci D Non-Compliance 5~~ed 1;i 0 u' □ Olher. Y, N <? f! £2.. ... 0 edst-., )( 0 I() y N C: :s (') 0 C'I ·s .. i ::E 0 ~ Known Hazards 6 Received Within C: tr) 0 .. ..... ~ • 0 ngT1111es Time u a N t.) & 'o E i u g \ N Samoled "' Samole Comments .. II)
101& s w X X X ~-1-,,. if . ~ I ,.,. < hri,,/4 a.
103& s w X X X acer-was:
1055 5 w X X X I rr on OUlor Package
V N NA
1146 s w X X X 2 r:r;Kon on Outer Package
1168 5 w X X X Y N NA
1212 5 w X X X 3 Present on Sample ,,,.-_--
y N '~N),.
1230 5 w X X X ◄ Unbroken on sample ~ 1242 5 w X X X y N
1035 5 w X X X Olsc,opond05 Between Semple
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Roool•od by: Dalo Specl11llnstructlons: 17~ /'?,,:Sr fl //:/ -,, L ..._0)✓1 -,,..-;;-Sionati,o
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Page 14 of 20
QC Report for Work Order (WO) -22L 1102
Analyte % Rec RPO Limits RPO Max Result Source Cone Spk Value MRL OF
Blank -EPA 300.0
QC Sample ID: BWL0594-BLK1 Batch: BWL0594
Date Prepared: 12/15/2022 Date Analyzed: 12/15/2022 Units: mg/L
Chloride ND 1.00 1.00
QC Sample ID: BWLll 14-BLKl Batch: BWL1114
Date Prepared: 12/28/2022 Date Analyzed: 12/28/2022 Units: mg/L
Chloride ND 1.00 1.00
LCS -EPA 300.0
QC Sample ID: BWLll 14-BSl Batch: BWLl 114
Date Prepared: 12/28/2022 Date Analyzed: 12/28/2022 Units: mg/L
Chloride 98.5 90 -110 49.2 50.0 1.00 1.00
Matrix Spike -EPA 300.0
QC Sample ID: BWL0594-MS2 Batch: BWL0594 QC Source Sample: 22Ll 102-01
Date Prepared: 12/15/2022 Date Analyzed: 12/15/2022 Units: mg/L
Chloride 95.1 80 -120 80.9 33.4 50.0 5.50 1.00
QC Sample ID: BWLll 14-MSl Batch: BWLll 14 QC Source Sample: XXXXXXX-XX
Date Prepared: 12/28/2022 Date Analyzed: 12/28/2022 Units: mg/L
Chloride 103 80 -120 114 11.2 100 11.0 1.00
QC Sample ID: BWLl I 14-MS2 Batch: BWLl 114 QC Source Sample: 22Ll 102-01
Date Prepared: 12/28/2022 Date Analyzed: 12/29/2022 Units: mg/L
Chloride 91 .3 80 -120 55.3 45.1 11 .1 1.11 1.00
QC Sample ID: BWLl l 14-MS3 Batch: BWLl 114 QC Source Sample: XXXXXXX-XX
Date Prepared: 12/28/2022 Date Analyzed: 12/29/2022 Units: mg/L
Chloride 100 80 -120 63.4 52.3 11.1 1.11 1.00
Matrix Spike Dup -EPA 300.0
QC Sample ID: BWL1114-MSD1 Batch: BWL1114 QC Source Sample: XXXXXXX-XX
Date Prepared: 12/28/2022 Date Analyzed: 12/28/2022 Units: mg/L
Chloride 105 2.16 80 -120 20 116 11 .2 100 11.0 1.00
QC Sample ID: BWLl l l4-MSD2 Batch: BWLl 114 QC Source Sample: 22Ll 102-0 l
Date Prepared: 12/28/2022 Date Analyzed: 12/29/2022 Units: mg/L
Chloride 91 .7 0.0945 80 -120 20 55.3 45.1 11.1 1.11 1.00
::ic Sample ID: BWL1114-MSD3 Batch: BWU114 QC Source Sample: XXXXXXX-XX
)ate Prepared: 12/28/2022 Date Analyzed: 12/29/2022 Units: mg/L
:::hloride 103 0.399 80 -120 20 63.7 52.3 11.1 1.11 1.00
=
= WO#: 22L 1102
rw. ChemtechFord. com Page 15 of 20
QC Report for Work Order (WO) -22L 1102
Analyte % Rec RPD Limits RPD Max Result Source Cone Spk Value MRL DF
Blank -EPA 353.2
QC Sample ID: BWL0740-BLK1 Batch: BWL0740
Date Prepared: 12/16/2022 Date Analyzed: l 2/16/2022 Units: mg/L
Nitrate+ Nitrite, Total, as N ND 0.100 1.00
LCS -EPA 353.2
QC Sample ID: BWL0740-BS1 Batch: BWL0740
Date Prepared: 12/16/2022 Date Analyzed: 12/16/2022 Units: mg/L
Nitrate + Nitrite, Total, as N 99.9 80 -120 2.00 2.00 0.100 1.00
Matrix Spike -EPA 353.2
QC Sample ID: BWL0740-MS1 Batch: BWL0740 QC Source Sample: 22Ll 102-01
Date Prepared: 12/16/2022 Date Analyzed: 12/16/2022 Units: mg/L
Nitrate + Nitrite, Total, as N 104 80 -120 4.56 3.52 1.00 0.100 1.00
QC Sample ID: BWL0740-MS2 Batch: BWL0740 QC Source Sample: 22Ll 102-02
Date Prepared: 12/16/2022 Date Analyzed: 12/16/2022 Units: mg/L
Nitrate + Nitrite, Total, as N 114 80 -120 4.74 3.60 1.00 0.100 1.00
Matrix Spike Dup -EPA 353.2
QC Sample ID: BWL0740-MSD1 Batch: BWL0740 QC Source Sample: 22L 1102-0 I
Date Prepared: 12/16/2022 Date Analyzed: 12/16/2022 Units: mg/L
Nitrate+ Nitrite, Total, as N 99.7 0.903 80 -120 20 4.52 3.52 1.00 0.100 1.00
QC Sample ID: BWL0740-MSD2 Batch: BWL0740 QC Source Sample: 22Ll 102-02
Date Prepared: 12/16/2022 Date Analyzed: 12/16/2022 Units: mg/L
Nitrate + Nitrite, Total, as N 98.2 3.35 80 -120 20 4.58 3.60 1.00 0.100 1.00
:.
WO#: 22L 1102
N. Chem tech Ford. com
QC Report for Work Order (WO) -22L 1102
Analyte %Rec RPO Limits RPO Max Result Source Cone SpkValue MRL OF
Blank -EPA 82600 /5030A
QC Sample ID: BWL0694-BLKI Batch: BWL0694
Date Prepared: 12/15/2022 Date Analyzed: 12/15/2022 Units: ug/L
Carbon Tetrachloride ND 1.0 1.00
Chloroform ND 1.0 1.00
Chloromethane ND 1.0 1.00
Methylene Chloride ND 1.0 1.00
QC Sample ID: BWL0694-BLK2 Batch: BWL0694
Date Prepared: 12/15/2022 Date Analyzed: 12/15/2022 Units: ug/L
Carbon Tetrachloride ND 1.0 1.00
Chloroform ND 1.0 1.00
Chloromethane ND 1.0 1.00
Methylene Chloride ND 1.0 1.00
LCS -EPA 82600 /5030A
QC Sample ID: BWL0694-BS1 Batch: BWL0694
Date Prepared: 12/15/2022 Date Analyzed: 12/15/2022 Units: ug/L
Carbon Tetrachloride 104 70 -130 10.4 10.0 1.0 1.00
Chloroform 89.6 70 -130 8.96 10.0 1.0 1.00
Chloromethane 61.5 70 -130 6.15 10.0 1.0 1.00
J-LOW-L -Estimated low due to low recovery of LCS
Methylene Chloride 83.6 70 -130 8.36 10.0 1.0 1.00
Matrix Spike -EPA 82600 /5030A
QC Sample ID: BWL0694-MS1 Batch: BWL0694 QC Source Sample: 22Ll l 02-0 I
Date Prepared: 12/15/2022 Date Analyzed: 12/15/2022 Units: ug/L
Carbon Tetrachloride 109 70-130 54.4 ND 50.0 5.0 1.00
Chloroform 85.5 70-130 93.2 50.5 50.0 5.0 1.00
Chloromethane 81 .9 70 -130 41 .0 ND 50.0 5.0 1.00
Methylene Chloride 94.7 70 -130 47.4 ND 50.0 5.0 1.00
Matrix Spike Dup -EPA 82600 /5030A
QC Sample ID: BWL0694-MSD1 Batch: BWL0694 QC Source Sample: 22Ll 102-01
Date Prepared: 12/15/2022 Date Analyzed: 12/15/2022 Units: ug/L
Carbon Tetrachloride 108 1.20 70 -130 20 53.8 ND 50.0 5.0 1.00
:hloroform 91 .3 6.56 70 -130 20 96.1 50.5 50.0 5.0 1.00
:hloromethane 80.0 2.35 70 -130 20 40.0 ND 50.0 5.0 1.00
.nethylene Chloride 95.2 0.527 70 -130 20 47.6 ND 50.0 5.0 1.00
WO#: 22L1102
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Surrogates Report for Work Order (WO) -22L 1102
QCID Analyte % Rec LCL UCL Result SpkValue Batch OF
Blank -EPA 8260D /5030A
BWL0694-BLK2 1,2-Dichloroethane-d4 108 64.2 126 10.8 10.0 BWL0694 1.00
BWL0694-BLK1 1,2-Dichloroethane-d4 100 64.2 126 10.0 10.0 BWL0694 1.00
BWL0694-BLK2 4-Bromofluorobenzene 101 71.4 125 10.1 10.0 BWL0694 1.00
BWL0694-BLK1 4-Bromofluorobenzene 105 71.4 125 10.5 10.0 BWL0694 1.00
BWL0694-BLK2 Toluene-dB 100 63.2 129 10.0 10.0 BWL0694 1.00
BWL0694-BLK1 Toluene-dB 100 63.2 129 10.0 10.0 BWL0694 1.00
LCS -EPA 8260D /5030A
BWL0694-8S1 1,2-Dichloroethane-d4 95.4 64.2 126 9.54 10.0 BWL0694 1.00
BWL0694-8S1 4-Bromofluorobenzene 106 71.4 125 10.6 10.0 BWL0694 1.00
BWL0694-8S1 Toluene-dB 97.8 63.2 129 9.78 10.0 BWL0694 1.00
Matrix Spike -EPA 8260D /5030A
BWL0694-MS1 1,2-Dichloroethane-d4 95.1 64.2 126 47.6 50.0 BWL0694 1.00
BWL0694-MS1 4-Bromofluorobenzene 101 71.4 125 50.6 50.0 BWL0694 1.00
BWL0694-MS1 Toluene-dB 100 63.2 129 50.0 50.0 BWL0694 1.00
Matrix Spike Dup -EPA 8260D /5030A
BWL0694-MSD1 1,2-Dichloroethane-d4 95.3 64.2 126 47.6 50.0 BWL0694 1.00
BWL0694-MSD1 4-Bromofluorobenzene 108 71.4 125 54.0 50.0 BWL0694 1.00
BWL0694-MSD1 Toluene-dB 100 63.2 129 50.1 50.0 BWL0694 1.00
. WO#: 22L1102
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Surrogate Recoveries (Field Samples)
LabNumber Analyte
8260 Low Level Volatiles
22L 1102-01 4-Bromofluorobenzene
22L 1102-01 Toluene-dB
22L1102-01 1,2-Dichloroethane-d4
8260 Low Level Volatiles
22L 1102-02 1,2-Dichloroethane-d4
22L 1102-02
22L 1102-02
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22L 1102-03 1,2-Dichloroethane-d4
22L 1102-03
22L1102-03
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22L 1102-04 1,2-Dichloroethane-d4
22L1102-04
22L 1102-04
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22L 1102-05 Toluene-dB
22L1102-05
22L 1102-05
1,2-Dichloroethane-d4
4-Bromofluorobenzene
8260 Low Level Volatiles
22L 1102-06 4-Bromofluorobenzene
22L 1102-06 Toluene-dB
22L 1102-06 1,2-Dichloroethane-d4
8260 Low Level Volatiles
22L 1102-07 1,2-Dichloroethane-d4
22L 1102-07 4-Bromofluorobenzene
22L 1102-07 Toluene-dB
8260 Low Level Volatiles
22L 1102-08 Toluene-dB
22L 1102-08 1,2-Dichloroethane-d4
WO#: 22L 1102
11. ChemtechFord.com
Result
10.4
10.0
10.1
9.74
10.2
10.0
10.0
10.6
10.0
9.70
10.3
9.63
10.0
10.4
10.1
10.0
9.79
10.4
10.6
9.91
10.0
9.98
10.5
Spklvl
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
%Rec
104
100
101
97.4
102
100
100
106
100
97.0
103
96.3
100
104
101
100
97.9
104
106
99.1
100
99.8
105
LCL UCL Qualifier
71.4 125
63.2 129
64.2 126
64.2 126
71.4 125
63.2 129
64.2 126
71.4 125
63.2 129
64.2 126
71.4 125
63.2 129
63.2 129
64.2 126
71.4 125
71.4 125
63.2 129
64.2 126 :"
!
64.2 126
71.4 125
63.2 129
63.2 129
64.2 126
22L 1102-08 4-Bromofluorobenzene
8260 Low Level Volatiles
22L 1102-09 1,2-Dichloroethane-d4
22L1102-09
22L 1102-09
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22L 1102-10 1,2-Dichloroethane-d4
22L1102-10
22L 1102-10
:tF WO#: 22L 1102
4-Bromofluorobenzene
Toluene-dB
ww. ChemtechFord. com
10.4
9.98
10.5
10.2
10.1
10.8
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
104
99.8
105
102
101
108
100
71.4 125
64.2 126
71.4 125
63.2 129
64.2 126
71.4 125
63.2 129
Page 20 of20
L-
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.,_____
Tab I
Quality Assurance and Data Validation Tables
1-1 : Field QA/QC Evaluation
1x Casing 2x Casing
Location Volume Volume Pumped Volume Volume Check Conductivity RPO pH RPO Temperature RPO Redox RPO Turbidity
MW-04 NA Continuously Pumped well --1970 NC 6.92 NC 13.40 NC 327
TW4-01 NA Continuously Pumped well --2348 NC 6.95 NC 13.49 NC 325
TW4-02 NA Continuously Pumped well -3887 NC 6.70 NC 12.80 NC 335
TW4-03 49.00 69.66 98 Pumped Dry 1841 1849 0.43 6.26 6.30 0.64 15.15 15.10 0.33 NM
TW4-04 NA Continuously Pumped well -2424 NC 7.03 NC 14.07 NC 313
TW4-05 32.04 77.00 64.08 okay 1621 1608 0.81 6.36 6.39 0.47 15.35 15.36 0.07 603
TW4-06 12.76 11.00 25.52 Pumped Dry 3938 3940 0.05 6.50 6.51 0.15 13.45 13.50 0.37 NM
TW4-07 25.21 49.50 50.42 Pumped Dry 1699 1709 0.59 6.48 6.50 0.31 13.45 13.54 0.67 NM
TW4-08 27.07 66.00 54.14 okay 4740 4738 0.04 6.18 6.20 0.32 14.97 14.97 0.00 588
TW4-09 32.14 77.00 64.28 okay 2504 2500 0.16 6.12 6.14 0.33 15.01 15.02 0.07 606
TW4-10 27.88 38.50 55.76 Pumped Dry 2595 2605 0.38 6.01 6.04 0.50 13.55 13.61 0.44 NM
TW4-11 NA Continuously Pumped well --3750 NC 6.67 NC 14.10 NC 351
TW4-12 30.69 38.50 61.38 Pumped Dry 1620 1616 0.25 6.78 6.79 0.15 13.50 13.60 0.74 NM
TW4-13 31.51 44.00 63.02 Pumped Dry 2130 2136 0.28 6.97 6.95 0.29 13.30 13.38 0.60 NM
TW4-14 11.65 14.66 23.3 Pumped Dry 5513 5521 0.15 6.15 6.16 0.16 15.05 15.01 0.27 NM
MW-26 NA Continuously Pumped well --3566 NC 6.64 NC 14.67 NC 413
TW4-16 47.70 110.00 95.4 okay 3823 3688 3.59 6.34 6.40 0.94 14.72 14.73 0.07 479
MW-32 31.10 65.10 62.2 okay 3668 3667 0.03 6.33 6.36 0.47 14.14 14.16 0.14 365
TW4-18 40.90 99.00 81.8 okay 1912 1870 2.22 6.26 6.30 0.64 15.48 16.48 6.26 573
TW4-19 NA Continuously Pumped well -2579 NC 6.50 NC 14.99 NC 569
TW4-21 NA Continuously Pumped well --2713 NC 6.51 NC 15.57 NC 457
TW4-22 NA Continuously Pumped well -4899 NC 6.12 NC 15.90 NC 465
TW4-23 26.05 66.00 52.1 okay 3496 3503 0.20 6.45 6.47 0.31 14.40 14.32 0.56 321
TW4-24 NA Continuously Pumped well --3941 NC 6.49 NC 14.99 NC 468
TW4-25 NA Continuously Pumped well --2563 NC 6.75 NC 15.00 NC 465
TW4-26 8.22 8.25 16.44 Pumped Dry 4706 4717 0.23 6.67 6.69 0.30 13.58 13.60 0.15 NM
TW4-27 10.84 11.00 21 .68 Pumped Dry 5163 5168 0.10 6.30 6.31 0.16 13.50 13.56 0.44 NM
TW4-28 38.38 49.50 76.76 Pumped Dry 1556 1567 0.70 7.09 7.08 0.14 13.40 13.51 0.82 NM
TW4-29 9.84 11.00 19.68 Pumped Dry 4052 4067 0.37 6.49 6.53 0.61 13.55 13.62 0.52 NM
TW4-30 11.78 14.66 23.56 Pum_ped Dry 4496 4484 0.27 6.12 6.10 0.33 13.95 13.98 0.21 NM
TW4-31 20.54 25.66 41.08 Pumped Dry 3629 3640 0.30 6.91 6.90 0.14 13.01 13.06 0.38 NM
TW4-32 37.73 77.00 75.46 okay 6240 6301 0.97 3.71 3.72 0.27 14.72 14.76 0.27 499
TW4-33 4.61 3.66 9.22 Pumped Dry 4620 4632 0.26 6.17 6.23 0.97 15.17 15.14 0.20 NM
TW4-34 11 .85 16.50 23.7 Pumped Dry 3036 3046 0.33 6.52 6.53 0.15 13.57 13.63 0.44 NM
TW4-35 7.07 7.33 14.14 Pumped Dry 4495 4496 0.02 6.50 6.51 0.15 13.35 13.43 0.60 NM
TW4-36 26.64 33.00 53.28 Pumped Dry 2487 2489 0.08 6.88 6.87 0.15 13.39 13.44 0.37 NM
TW4-37 NA Continuously Pumped well --4929 NC 6.26 NC 14.90 NC 461
TW4-38 34.98 77.00 69 .96 okay 1529 1580 3.28 6.08 6.10 0.33 14.65 14.69 0.27 615
TW4-39 NA Continuously Pumped well --2737 NC 6.65 NC 14.10 NC 445
TW4-40 NA Continuously Pumped well -4169 NC 7.05 NC 14.13 NC 313
TW4-41 NA Continuously Pumped well -2702 NC 7.05 NC 15.89 NC 315
TW4-42 9.95 11.00 19.9 Pumped Dry 3834 3847 0.34 6.80 6.78 0.29 14.55 14.59 0.27 NM
TW4-43 14.52 22.00 29.04 Pumped Dry 3748 3752 0.11 6.70 6.70 0.00 13.14 13.19 0.38 NM
MW-04, MW-26, TW4-01 , TW4-02, TW4-04, TW4-11, TW4-i9, TW4-21 , TW4-22, TW+24, TW4-25, TW4-37, TW4-39, TW4-40, TW4-41 arec0ntmuallypumpedwells.
TW4-03, TW4-06, TW4-07, TW4-10, TW4-12, TW4-13, TW4-14, TW4-26, TW4-27, TW4-28, TW4-29, TW4-30, TW4-31, TW4-33, TW4-34, TW4-35, TW4-36, TW4-42, TW4-43 were pumped dry and sampled after recovery.
NM = Not Measured. The QAP does not require the measurement of redox potential or turbidity in wells that were purged to dryness.
RPD = Relative Percent Difference
NC 0
NC 0
NC 0
NC NM
NC 0
600 0.50 3.3
NC NM
NC NM
586 0.34 0
601 0.83 27.0
NC NM
NC 0
NC NM
NC NM
NC NM
NC 0
476 0.63 34.0
341 6.80 37.0
570 0.52 31.0
NC 0
NC 0
NC 0
310 3.49 2.5
NC 0
NC 0
NC NM
NC NM
NC NM
NC NM
NC NM
NC NM
498 0.20 23.0
NC NM
NC NM
NC NM
NC NM
NC 0
609 0.98 4.3
NC 21.0
NC 0
NC 0
NC NM
NC NM
The OAP states that turbidity should be less than 5 Nephelometric Turbidity Units ("NTU") prior to sampling unless the well is characterized by water that has a higher turbidity. The QAP does not require that turbidity measurements be less than 5 NTU prior to
sampling. As such, the noted observations regarding turbidity measurements less than 5 NTU are included for information purposes only.
3.4
0
28.0
33.0
38.0
30.0
2.5
22.0
4.4
RPO Dissolved Oxygen RPO
NC 44.8 NC
NC 83.0 NC
NC 83.0 NC
NC NM NC
NC 113.0 NC
2.99 63.0 62.0 1.60
NC NM NC
NC NM NC
0.00 1.2 1.2 0.00
3.64 1.0 1.0 0.00
NC NM NC
NC 86.5 NC
NC NM NC
NC NM NC
NC NM NC
NC 34.5 NC
2.99 4.8 4.7 2.11
2.67 7.4 7.0 5.56
3.28 10.7 11 .0 2.76
NC 38.3 NC
NC 34.0 NC
NC 20.5 NC
0.00 4.8 5.0 4.08
NC 19.4 NC
NC 32.0 NC
NC NM NC
NC NM NC
NC NM NC
NC NM NC
NC NM NC
NC NM NC
4.44 0.8 0.8 0.00
NC NM NC
NC NM NC
NC NM NC
NC NM NC
NC 64.0 NC
2.30 81.0 80.0 1.24
NC 83.0 NC
NC 105.0 NC
NC 97.0 NC
NC NM NC
NC NM NC
1-2: Holding Time Evaluation
Hold Time Allowed Hold Hold Time
Location ID Parameter Name Sample Date Analysis Date (Days) Time (Days) Check
Trip Blank Carbon Tetrachloride 11/30/2022 12/5/2022 5 14 OK
Trip Blank Chloroform 11/30/2022 12/5/2022 5 14 OK
Trip Blank Chloromethane 11/30/2022 12/5/2022 5 14 OK
Trip Blank Methylene Chloride 11/30/2022 12/5/2022 5 14 OK
Trip Blank Carbon Tetrachloride 12/6/2022 12/13/2022 7 14 OK
Trip Blank Chloroform 12/6/2022 12/13/2022 7 14 OK
Trip Blank Chloromethane 12/6/2022 12/13/2022 7 14 OK
Trip Blank Methylene Chloride 12/6/2022 12/13/2022 7 14 OK
Trip Blank Carbon Tetrachloride 12/9/2022 12/15/2022 6 14 OK
Trip Blank Chloroform 12/9/2022 12/15/2022 6 14 OK
Trip Blank Chloromethane 12/9/2022 12/15/2022 6 14 OK
Trip Blank Methylene Chloride 12/9/2022 12/15/2022 6 14 OK
MW-04 Chloride 11/30/2022 12/6/2022 6 28 OK
MW-04 Carbon Tetrachloride 11/30/2022 12/5/2022 5 14 OK
MW-04 Chloroform 11/30/2022 12/5/2022 5 14 OK
MW-04 Chloromethane 11/30/2022 12/5/2022 5 14 OK
MW-04 Methylene Chloride 11/30/2022 12/5/2022 5 14 OK
MW-04 Nitrate + Nitrite as N 11/30/2022 12/7/2022 7 28 OK
TW4-01 Chloride 11/30/2022 12/5/2022 5 28 OK
TW4-0l Carbon Tetrachloride 11/30/2022 12/5/2022 5 14 OK
TW4-01 Chloroform 11/30/2022 12/5/2022 5 14 OK
TW4-0l Chloromethane 11/30/2022 12/5/2022 5 14 OK
TW4-01 Methylene Chloride 11/30/2022 12/5/2022 5 14 OK
TW4-01 Nitrate + Nitrite as N 11/30/2022 12/7/2022 7 28 OK
TW4-02 Chloride 11/30/2022 12/5/2022 5 28 OK
TW4-02 Carbon Tetrachloride 11/30/2022 12/5/2022 5 14 OK
TW4-02 Chloroform 11/30/2022 12/5/2022 5 14 OK
TW4-02 Chloromethane 11/30/2022 12/5/2022 5 14 OK
TW4-02 Methylene Chloride 11/30/2022 12/5/2022 5 14 OK
TW4-02 Nitrate + Nitrite as N 11/30/2022 12/7/2022 7 28 OK
TW4-03 Chloride 12/7/2022 12/14/2022 7 28 OK
TW4-03 Carbon Tetrachloride 12/7/2022 12/12/2022 5 14 OK
TW4-03 Chloroform 12/7/2022 12/12/2022 5 14 OK
TW4-03 Chloromethane 12/7/2022 12/12/2022 5 14 OK
TW4-03 Methylene Chloride 12/7/2022 12/12/2022 5 14 OK
TW4-03 Nitrate + Nitrite as N 12/7/2022 12/15/2022 8 28 OK
TW4-03R Chloride 12/6/2022 12/12/2022 6 28 OK
TW4-03R Carbon Tetrachloride 12/6/2022 12/12/2022 6 14 OK
TW4-03R Chloroform 12/6/2022 12/12/2022 6 14 OK
TW4-03R Chloromethane 12/6/2022 12/12/2022 6 14 OK
TW4-03R Methylene Chloride 12/6/2022 12/12/2022 6 14 OK
TW4-03R Nitrate + Nitrite as N 12/6/2022 12/15/2022 9 28 OK
TW4-04 Chloride 11/30/2022 12/5/2022 5 28 OK
TW4-04 Carbon Tetrachloride 11/30/2022 12/5/2022 5 14 OK
TW4-04 Chloroform 11/30/2022 12/5/2022 5 14 OK
TW4-04 Chloromethane 11/30/2022 12/5/2022 5 14 OK
TW4-04 Methylene Chloride 11/30/2022 12/5/2022 5 14 OK
TW4-04 Nitrate + Nitrite as N 11/30/2022 12/7/2022 7 28 OK
TW4-05 Chloride 12/8/2022 12/14/2022 6 28 OK
TW4-05 Carbon Tetrachloride 12/8/2022 12/13/2022 5 14 OK
TW4-05 Chloroform 12/8/2022 12/13/2022 5 14 OK
TW4-05 Chloromethane 12/8/2022 12/13/2022 5 14 OK
TW4-05 Methylene Chloride 12/8/2022 12/13/2022 5 14 OK
1-2: Holding Time Evaluation
Hold Time Allowed Hold Hold Time
Location ID Parameter Name Sample Date Analysis Date (Days) Time (Days) Check
TW4-05 Nitrate + Nitrite as N 12/8/2022 12/15/2022 7 28 OK
TW4-06 Chloride 12/8/2022 12/13/2022 5 28 OK
TW4-06 Carbon Tetrachloride 12/8/2022 12/13/2022 5 14 OK
TW4-06 Chloroform 12/8/2022 12/13/2022 5 14 OK
TW4-06 Chloromethane 12/8/2022 12/13/2022 5 14 OK
TW4-06 Methylene Chloride 12/8/2022 12/13/2022 5 14 OK
TW4-06 Nitrate + Nitrite as N 12/8/2022 12/15/2022 7 28 OK
TW4-07 Chloride 12/9/2022 12/29/2022 20 28 OK
TW4-07 Carbon Tetrachloride 12/9/2022 12/15/2022 6 14 OK
TW4-07 Chloroform 12/9/2022 12/15/2022 6 14 OK
TW4-07 Chloromethane 12/9/2022 12/15/2022 6 14 OK
TW4-07 Methylene Chloride 12/9/2022 12/15/2022 6 14 OK
TW4-07 Nitrate + Nitrite as N 12/9/2022 12/16/2022 7 28 OK
TW4-08 Chloride 12/8/2022 12/14/2022 6 28 OK
TW4-08 Carbon Tetrachloride 12/8/2022 12/13/2022 5 14 OK
TW4-08 Chloroform 12/8/2022 12/13/2022 5 14 OK
TW4-08 Chloromethane 12/8/2022 12/13/2022 5 14 OK
TW4-08 Methylene Chloride 12/8/2022 12/13/2022 5 14 OK
TW4-08 Nitrate + Nitrite as N 12/8/2022 12/14/2022 6 28 OK
TW4-09 Chloride 12/8/2022 12/14/2022 6 28 OK
TW4-09 Carbon Tetrachloride 12/8/2022 12/13/2022 5 14 OK
TW4-09 Chloroform 12/8/2022 12/13/2022 5 14 OK
TW4-09 Chloromethane 12/8/2022 12/13/2022 5 14 OK
TW4-09 Methylene Chloride 12/8/2022 12/13/2022 5 14 OK
TW4-09 Nitrate + Nitrite as N 12/8/2022 12/14/2022 6 28 OK
TW4-10 Chloride 12/9/2022 12/29/2022 20 28 OK
TW4-10 Carbon Tetrachloride 12/9/2022 12/15/2022 6 14 OK
TW4-10 Chloroform 12/9/2022 12/15/2022 6 14 OK
TW4-10 Chloromethane 12/9/2022 12/15/2022 6 14 OK
TW4-10 Methylene Chloride 12/9/2022 12/15/2022 6 14 OK
TW4-10 Nitrate + Nitrite as N 12/9/2022 12/16/2022 7 28 OK
TW4-11 Chloride 11/30/2022 12/6/2022 6 28 OK
TW4-ll Carbon Tetrachloride 11/30/2022 12/5/2022 5 14 OK
TW4-11 Chloroform 11/30/2022 12/5/2022 5 14 OK
TW4-11 Chloromethane 11/30/2022 12/5/2022 5 14 OK
TW4-11 Methylene Chloride 11/30/2022 12/5/2022 5 14 OK
TW4-11 Nitrate + Nitrite as N 11/30/2022 12/7/2022 7 28 OK
TW4-12 Chloride 12/7/2022 12/14/2022 7 28 OK
TW4-12 Carbon Tetrachloride 12/7/2022 12/12/2022 5 14 OK
TW4-12 Chloroform 12/7/2022 12/12/2022 5 14 OK
TW4-12 Chloromethane 12/7/2022 12/12/2022 5 14 OK
TW4-12 Methylene Chloride 12/7/2022 12/12/2022 5 14 OK
TW4-12 Nitrate + Nitrite as N 12/7/2022 12/15/2022 8 28 OK
TW4-13 Chloride 12/7/2022 12/14/2022 7 28 OK
TW4-13 Carbon Tetrachloride 12/7/2022 12/12/2022 5 14 OK
TW4-13 Chloroform 12/7/2022 12/12/2022 5 14 OK
TW4-13 Chloromethane 12/7/2022 12/12/2022 5 14 OK
TW4-13 Methylene Chloride 12/7/2022 12/12/2022 5 14 OK
TW4-13 Nitrate + Nitrite as N 12/7/2022 12/15/2022 8 28 OK
TW4-14 Chloride 12/8/2022 12/13/2022 5 28 OK
TW4-14 Carbon Tetrachloride 12/8/2022 12/13/2022 5 14 OK
TW4-14 Chloroform 12/8/2022 12/13/2022 5 14 OK
TW4-14 Chloromethane 12/8/2022 12/13/2022 5 14 OK
1-2: Holding Time Evaluation
Hold Time Allowed Hold Hold Time
Location ID Parameter Name Sample Date Analysis Date (Days) Time (Days) Check
TW4-14 Methylene Chloride 12/8/2022 12/13/2022 5 14 OK
TW4-14 Nitrate + Nitrite as N 12/8/2022 12/15/2022 7 28 OK
MW-26 Chloride 11/30/2022 12/5/2022 5 28 OK
MW-26 Carbon Tetrachloride 11/30/2022 12/5/2022 5 14 OK
MW-26 Chloroform 11/30/2022 12/5/2022 5 14 OK
MW-26 Chloromethane 11/30/2022 12/5/2022 5 14 OK
MW-26 Methylene Chloride 11/30/2022 12/5/2022 5 14 OK
MW-26 Nitrate + Nitrite as N 11/30/2022 12/7/2022 7 28 OK
TW4-16 Chloride 12/9/2022 12/29/2022 20 28 OK
TW4-16 Carbon Tetrachloride 12/9/2022 12/15/2022 6 14 OK
TW4-16 Chloroform 12/9/2022 12/15/2022 6 14 OK
TW4-16 Chloromethane 12/9/2022 12/15/2022 6 14 OK
TW4-16 Methylene Chloride 12/9/2022 12/15/2022 6 14 OK
TW4-16 Nitrate + Nitrite as N 12/9/2022 12/16/2022 7 28 OK
MW-32 Chloride 12/8/2022 12/13/2022 5 28 OK
MW-32 Carbon Tetrachloride 12/8/2022 12/13/2022 5 14 OK
MW-32 Chloroform 12/8/2022 12/13/2022 5 14 OK
MW-32 Chloromethane 12/8/2022 12/13/2022 5 14 OK
MW-32 Methylene Chloride 12/8/2022 12/13/2022 5 14 OK
MW-32 Nitrate + Nitrite as N 12/8/2022 12/15/2022 7 28 OK
TW4-18 Chloride 12/9/2022 12/29/2022 20 28 OK
TW4-18 Carbon Tetrachloride 12/9/2022 12/15/2022 6 14 OK
TW4-18 Chloroform 12/9/2022 12/15/2022 6 14 OK
TW4-18 Chloromethane 12/9/2022 12/15/2022 6 14 OK
TW4-18 Methylene Chloride 12/9/2022 12/15/2022 6 14 OK
TW4-18 Nitrate + Nitrite as N 12/9/2022 12/16/2022 7 28 OK
TW4-19 Chloride 11/30/2022 12/8/2022 8 28 OK
TW4-19 Carbon Tetrachloride 11/30/2022 12/5/2022 5 14 OK
TW4-19 Chloroform 11/30/2022 12/5/2022 5 14 OK
TW4-19 Chloromethane 11/30/2022 12/5/2022 5 14 OK
TW4-19 Methylene Chloride 11/30/2022 12/5/2022 5 14 OK
TW4-19 Nitrate + Nitrite as N 11/30/2022 12/7/2022 7 28 OK
TW4-21 Chloride 11/30/2022 12/7/2022 7 28 OK
TW4-21 Carbon Tetrachloride 11/30/2022 12/5/2022 5 14 OK
TW4-21 Chloroform 11/30/2022 12/5/2022 5 14 OK
TW4-21 Chloromethane 11/30/2022 12/5/2022 5 14 OK
TW4-21 Methylene Chloride 11/30/2022 12/5/2022 5 14 OK
TW4-21 Nitrate + Nitrite as N 11/30/2022 12/7/2022 7 28 OK
TW4-22 Chloride 11/30/2022 12/8/2022 8 28 OK
TW4-22 Carbon Tetrachloride 11/30/2022 12/5/2022 5 14 OK
TW4-22 Chloroform 11/30/2022 12/5/2022 5 14 OK
TW4-22 Chloromethane 11/30/2022 12/5/2022 5 14 OK
TW4-22 Methylene Chloride 11/30/2022 12/5/2022 5 14 OK
TW4-22 Nitrate + Nitrite as N 11/30/2022 12/7/2022 7 28 OK
TW4-23 Chloride 12/7/2022 12/13/2022 6 28 OK
TW4-23 Carbon Tetrachloride 12/7/2022 12/13/2022 6 14 OK
TW4-23 Chloroform 12/7/2022 12/13/2022 6 14 OK
TW4-23 Chloromethane 12/7/2022 12/13/2022 6 14 OK
TW4-23 Methylene Chloride 12/7/2022 12/13/2022 6 14 OK
TW4-23 Nitrate+ Nitrite as N 12/7/2022 12/15/2022 8 28 OK
TW4-24 Chloride 11/30/2022 12/7/2022 7 28 OK
TW4-24 Carbon Tetrachloride 11/30/2022 12/5/2022 5 14 OK
TW4-24 Chloroform 11/30/2022 12/5/2022 5 14 OK
I-2: Holding Time Evaluation
Hold Time Allowed Hold Hold Time
Location ID Parameter Name Sample Date Analysis Date (Days) Time (Days) Check
TW4-24 Chloromethane 11/30/2022 12/5/2022 5 14 OK
TW4-24 Methylene Chloride 11/30/2022 12/5/2022 5 14 OK
TW4-24 Nitrate + Nitrite as N 11/30/2022 12/7/2022 7 28 OK
TW4-25 Chloride 11/30/2022 12/5/2022 5 28 OK
TW4-25 Carbon Tetrachloride 11/30/2022 12/5/2022 5 14 OK
TW4-25 Chloroform 11/30/2022 12/5/2022 5 14 OK
TW4-25 Chloromethane 11/30/2022 12/5/2022 5 14 OK
TW4-25 Methylene Chloride 11/30/2022 12/5/2022 5 14 OK
TW4-25 Nitrate + Nitrite as N 11/30/2022 12/7/2022 7 28 OK
TW4-26 Chloride 12/9/2022 12/29/2022 20 28 OK
TW4-26 Carbon Tetrachloride 12/9/2022 12/15/2022 6 14 OK
TW4-26 Chloroform 12/9/2022 12/15/2022 6 14 OK
TW4-26 Chloromethane 12/9/2022 12/15/2022 6 14 OK
TW4-26 Methylene Chloride 12/9/2022 12/15/2022 6 14 OK
TW4-26 Nitrate+ Nitrite as N 12/9/2022 12/16/2022 7 28 OK
TW4-27 Chloride 12/8/2022 12/13/2022 5 28 OK
TW4-27 Carbon Tetrachloride 12/8/2022 12/13/2022 5 14 OK
TW4-27 Chloroform 12/8/2022 12/13/2022 5 14 OK
TW4-27 Chloromethane 12/8/2022 12/13/2022 5 14 OK
TW4-27 Methylene Chloride 12/8/2022 12/13/2022 5 14 OK
TW4-27 Nitrate + Nitrite as N 12/8/2022 12/15/2022 7 28 OK
TW4-28 Chloride 12/7/2022 12/14/2022 7 28 OK
TW4-28 Carbon Tetrachloride 12/7/2022 12/12/2022 5 14 OK
TW4-28 Chloroform 12/7/2022 12/12/2022 5 14 OK
TW4-28 Chloromethane 12/7/2022 12/12/2022 5 14 OK
TW4-28 Methylene Chloride 12/7/2022 12/12/2022 5 14 OK
TW4-28 Nitrate + Nitrite as N 12/7/2022 12/15/2022 8 28 OK
TW4-29 Chloride 12/9/2022 12/29/2022 20 28 OK
TW4-29 Carbon Tetrachloride 12/9/2022 12/15/2022 6 14 OK
TW4-29 Chloroform 12/9/2022 12/15/2022 6 14 OK
TW4-29 Chloromethane 12/9/2022 12/15/2022 6 14 OK
TW4-29 Methylene Chloride 12/9/2022 12/15/2022 6 14 OK
TW4-29 Nitrate + Nitrite as N 12/9/2022 12/17/2022 8 28 OK
TW4-30 Chloride 12/9/2022 12/29/2022 20 28 OK
TW4-30 Carbon Tetrachloride 12/9/2022 12/15/2022 6 14 OK
TW4-30 Chloroform 12/9/2022 12/15/2022 6 14 OK
TW4-30 Chloromethane 12/9/2022 12/15/2022 6 14 OK
TW4-30 Methylene Chloride 12/9/2022 12/15/2022 6 14 OK
TW4-30 Nitrate + Nitrite as N 12/9/2022 12/16/2022 7 28 OK
TW4-31 Chloride 12/7/2022 12/14/2022 7 28 OK
TW4-31 Carbon Tetrachloride 12/7/2022 12/12/2022 5 14 OK
TW4-31 Chloroform 12/7/2022 12/12/2022 5 14 OK
TW4-31 Chloromethane 12/7/2022 12/12/2022 5 14 OK
TW4-31 Methylene Chloride 12/7/2022 12/12/2022 5 14 OK
TW4-31 Nitrate + Nitrite as N 12/7/2022 12/15/2022 8 28 OK
TW4-32 Chloride 12/7/2022 12/14/2022 7 28 OK
TW4-32 Carbon Tetrachloride 12/7/2022 12/12/2022 5 14 OK
TW4-32 Chloroform 12/7/2022 12/12/2022 5 14 OK
TW4-32 Chloromethane 12/7/2022 12/12/2022 5 14 OK
TW4-32 Methylene Chloride 12/7/2022 12/12/2022 5 14 OK
TW4-32 Nitrate+ Nitrite as N 12/7/2022 12/15/2022 8 28 OK
TW4-33 Chloride 12/9/2022 12/28/2022 19 28 OK
TW4-33 Carbon Tetrachloride 12/9/2022 12/15/2022 6 14 OK
1-2: Holding Time Evaluation
Hold Time Allowed Hold Hold Time
Location ID Parameter Name Sample Date Analysis Date (Days) Time (Days) Check
TW4-33 Chloroform 12/9/2022 12/15/2022 6 14 OK
TW4-33 Chloromethane 12/9/2022 12/15/2022 6 14 OK
TW4-33 Methylene Chloride 12/9/2022 12/15/2022 6 14 OK
TW4-33 Nitrate + Nitrite as N 12/9/2022 12/16/2022 7 28 OK
TW4-33R Chloride 12/8/2022 12/12/2022 4 28 OK
TW4-33R Carbon Tetrachloride 12/8/2022 12/12/2022 4 14 OK
TW4-33R Chloroform 12/8/2022 12/12/2022 4 14 OK
TW4-33R Chloromethane 12/8/2022 12/12/2022 4 14 OK
TW4-33R Methylene Chloride 12/8/2022 12/12/2022 4 14 OK
TW4-33R Nitrate + Nitrite as N 12/8/2022 12/15/2022 7 28 OK
TW4-34 Chloride 12/8/2022 12/13/2022 5 28 OK
TW4-34 Carbon Tetrachloride 12/8/2022 12/13/2022 5 14 OK
TW4-34 Chloroform 12/8/2022 12/13/2022 5 14 OK
TW4-34 Chloromethane 12/8/2022 12/13/2022 5 14 OK
TW4-34 Methylene Chloride 12/8/2022 12/13/2022 5 14 OK
TW4-34 Nitrate + Nitrite as N 12/8/2022 12/15/2022 7 28 OK
TW4-35 Chloride 12/7/2022 12/13/2022 6 28 OK
TW4-35 Carbon Tetrachloride 12/7/2022 12/12/2022 5 14 OK
TW4-35 Chloroform 12/7/2022 12/12/2022 5 14 OK
TW4-35 Chloromethane 12/7/2022 12/12/2022 5 14 OK
TW4-35 Methylene Chloride 12/7/2022 12/12/2022 5 14 OK
TW4-35 Nitrate + Nitrite as N 12/7/2022 12/15/2022 8 28 OK
TW4-36 Chloride 12/7/2022 12/14/2022 7 28 OK
TW4-36 Carbon Tetrachloride 12/7/2022 12/12/2022 5 14 OK
TW4-36 Chloroform 12/7/2022 12/12/2022 5 14 OK
TW4-36 Chloromethane 12/7/2022 12/12/2022 5 14 OK
TW4-36 Methylene Chloride 12/7/2022 12/12/2022 5 14 OK
TW4-36 Nitrate + Nitrite as N 12/7/2022 12/15/2022 8 28 OK
TW4-37 Chloride 11/30/2022 12/7/2022 7 28 OK
TW4-37 Carbon Tetrachloride 11/30/2022 12/5/2022 5 14 OK
TW4-37 Chloroform 11/30/2022 12/5/2022 5 14 OK
TW4-37 Chloromethane 11/30/2022 12/5/2022 5 14 OK
TW4-37 Methylene Chloride 11/30/2022 12/5/2022 5 14 OK
TW4-37 Nitrate + Nitrite as N 11/30/2022 12/7/2022 7 28 OK
TW4-38 Chloride 12/7/2022 12/13/2022 6 28 OK
TW4-38 Carbon Tetrachloride 12/7/2022 12/13/2022 6 14 OK
TW4-38 Chloroform 12/7/2022 12/13/2022 6 14 OK
TW4-38 Chloromethane 12/7/2022 12/13/2022 6 14 OK
TW4-38 Methylene Chloride 12/7/2022 12/13/2022 6 14 OK
TW4-38 Nitrate + Nitrite as N 12/7/2022 12/15/2022 8 28 OK
TW4-39 Chloride 11/30/2022 12/5/2022 5 28 OK
TW4-39 Carbon Tetrachloride 11/30/2022 12/5/2022 5 14 OK
TW4-39 Chloroform 11/30/2022 12/5/2022 5 14 OK
TW4-39 Chloromethane 11/30/2022 12/5/2022 5 14 OK
TW4-39 Methylene Chloride 11/30/2022 12/5/2022 5 14 OK
TW4-39 Nitrate + Nitrite as N 11/30/2022 12/7/2022 7 28 OK
TW4-40 Chloride 11/30/2022 12/5/2022 5 28 OK
TW4-40 Carbon Tetrachloride 11/30/2022 12/5/2022 5 14 OK
TW4-40 Chloroform 11/30/2022 12/5/2022 5 14 OK
TW4-40 Chloromethane 11/30/2022 12/5/2022 5 14 OK
TW4-40 Methylene Chloride 11/30/2022 12/5/2022 5 14 OK
TW4-40 Nitrate + Nitrite as N 11/30/2022 12/7/2022 7 28 OK
TW4-41 Chloride 11/30/2022 12/5/2022 5 28 OK
I-2: Holding Time Evaluation
Hold Time Allowed Hold Hold Time
Location ID Parameter Name Sample Date Analysis Date (Days) Time (Days) Check
TW4-41 Carbon Tetrachloride 11/30/2022 12/5/2022 5 14 OK
TW4-41 Chloroform 11/30/2022 12/5/2022 5 14 OK
TW4-41 Chloromethane 11/30/2022 12/5/2022 5 14 OK
TW4-41 Methylene Chloride 11/30/2022 12/5/2022 5 14 OK
TW4-41 Nitrate + Nitrite as N 11/30/2022 12/7/2022 7 28 OK
TW4-42 Chloride 12/7/2022 12/14/2022 7 28 OK
TW4-42 Carbon Tetrachloride 12/7/2022 12/12/2022 5 14 OK
TW4-42 Chloroform 12/7/2022 12/12/2022 5 14 OK
TW4-42 Chloromethane 12/7/2022 12/12/2022 5 14 OK
TW4-42 Methylene Chloride 12/7/2022 12/12/2022 5 14 OK
TW4-42 Nitrate + Nitrite as N 12/7/2022 12/15/2022 8 28 OK
TW4-43 Chloride 12/7/2022 12/13/2022 6 28 OK
TW4-43 Carbon Tetrachloride 12/7/2022 12/12/2022 5 14 OK
TW4-43 Chloroform 12/7/2022 12/12/2022 5 14 OK
TW4-43 Chloromethane 12/7/2022 12/12/2022 5 14 OK
TW4-43 Methylene Chloride 12/7/2022 12/12/2022 5 14 OK
TW4-43 Nitrate + Nitrite as N 12/7/2022 12/15/2022 8 28 OK
TW4-60 Chloride 11/30/2022 12/6/2022 6 28 OK
TW4-60 Carbon Tetrachloride 11/30/2022 12/6/2022 6 14 OK
TW4-60 Chloroform 11/30/2022 12/6/2022 6 14 OK
TW4-60 Chloromethane 11/30/2022 12/6/2022 6 14 OK
TW4-60 Methylene Chloride 11/30/2022 12/6/2022 6 14 OK
TW4-60 Nitrate + Nitrite as N 11/30/2022 12/7/2022 7 28 OK
TW4-65 Chloride 12/7/2022 12/13/2022 6 28 OK
TW4-65 Carbon Tetrachloride 12/7/2022 12/13/2022 6 14 OK
TW4-65 Chloroform 12/7/2022 12/13/2022 6 14 OK
TW4-65 Chloromethane 12/7/2022 12/13/2022 6 14 OK
TW4-65 Methylene Chloride 12/7/2022 12/13/2022 6 14 OK
TW4-65 Nitrate+ Nitrite as N 12/7/2022 12/15/2022 8 28 OK
TW4-70 Chloride 12/8/2022 12/14/2022 6 28 OK
TW4-70 Carbon Tetrachloride 12/8/2022 12/13/2022 5 14 OK
TW4-70 Chloroform 12/8/2022 12/13/2022 5 14 OK
TW4-70 Chloromethane 12/8/2022 12/13/2022 5 14 OK
TW4-70 Methylene Chloride 12/8/2022 12/13/2022 5 14 OK
TW4-70 Nitrate + Nitrite as N 12/8/2022 12/14/2022 6 28 OK
TW4-75 Chloride 12/9/2022 12/29/2022 20 28 OK
TW4-75 Carbon Tetrachloride 12/9/2022 12/15/2022 6 14 OK
TW4-75 Chloroform 12/9/2022 12/15/2022 6 14 OK
TW4-75 Chloromethane 12/9/2022 12/15/2022 6 14 OK
TW4-75 Methylene Chloride 12/9/2022 12/15/2022 6 14 OK
TW4-75 Nitrate + Nitrite as N 12/9/2022 12/16/2022 7 28 OK
Table I-3 Recipt Temperature Check
Sample Batch Wells in Batch Temperature
22L0202 MW-04, TW4-0l, TW4-02, TW4-04, TW4-l 1 MW-26, TW4-19, TW4-21, TW4-l.2°C
22, TW4-24, TW4-25, TW4-37, TW4-39, TW4-40, TW4-41, TW4-60, Trip Blank
TW4-03, TW4-03R, TWS-05, TW4-06, TW4-08, TW4-09, TW4-12, TW4-13,
22I1410 TW4-14, MW-32, TW4-23, TW4-27, TW4-28, TW4-31 , TW4-32, TW4-33R, 3.8°C TW4-34, TW4-35, TW4-36, TW4-38, TW4-42, TW4-43, TW4-65, TW4-70, Trip
Blank
2211102 TW4-07 TW4-10, TW4-16, TW4-J8, TW4-26, TW4-29, TW4-30, TW4-33, TW4 0.0°C 75, Trip Blank
I:
1-4 Analytical Method Check
Parameter Method Method Used by Lab
SW8260B,
Carbon Tetrachloride SW8260C or SW8260D
SW8260D
A4500-Cl B or
Chloride A4500-Cl E or E300.0
E300.0
SW8260B,
Chloroform SW8260C or SW8260D
SW8260D
SW8260B,
Chloromethane SW8260C or SW8260D
SW8260D
SW8260B,
Methylene chloride SW8260C or SW8260D
SW8260D
Nitrogen E353.1 or E353.2 E353.2
All parameters were analyzed using the reporting method specificied in the QAP
-eoortmg 1m1t ec I 5 R L .. Ch k
Lab
Reporting Dilution Required
Location AnaJyte Limit Units Qualifier Factor Reoortin_g Limit RLCheck
Trip Blank Carbon Tetrachloride 1 ug/L u 1 I OK
Trio Blank Chloroform I u_g/J_. u I I OK
Trip Blank Chloromethane I u!!/L u I I OK
Trip Blank Methylene Chloride I ug/L u I I OK
Trip Blank Carbon Tetrachloride I U!!IL u 1 I OK
Trip Blank Chloroform 1 ug/L u 1 1 OK
Trio Blank Chloromethane 1 ug/L u 1 1 OK
Trip Blank Methylene Chloride 1 uwl, u 1 1 OK
Trip Blank Carbon Tetrachloride 1 ug/L u 1 1 OK
Trio Blank Chloroform 1 ug/L u 1 1 OK
Trip Blank Chloromethane 1 ug/L u 1 1 OK
Trip Blank Methylene Chloride 1 ug/L u 1 I OK
MW-04 Carbon Tetrachloride 1 uwl, u 1 1 OK
MW-04 Chloride 1 mg/L 1 1 OK
MW-04 Chloroform 100 ug/L 100 1 OK
MW-04 Chloromethane 1 u_g/L u 1 1 OK
MW-04 Methylene Chloride 1 ug/L u 1 1 OK
MW-04 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-0l Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-01 Chloride 1 rng/L 1 1 OK
TW4-01 Chloroform 100 uwl, 100 1 OK
TW4-0l Chloromethane 1 ug/L u 1 1 OK
TW4-01 Methylene Chloride 1 u_g/L u I 1 OK
TW4-01 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-02 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-02 Chloride 1 mg/L 1 1 OK
TW4-02 Chloroform 100 ug/L 100 1 OK
TW4-02 Chloromethane 1 u_g/L u 1 1 OK
TW4-02 Methylene Chloride 1 ug/L u 1 1 OK
TW4-02 Nitrate+ Nitrite as N 0.1 m_g/L 1 0.1 OK
TW4-03 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-03 Chloride 5 mg/L 5 1 OK
TW4-03 Chl.oroform 1 ug/L u 1 1 OK
TW4-03 Chloromethane 1 ug/L u 1 1 OK
TW4-03 Methylene Chloride 1 uw[. u I 1 OK
TW4-03 Nitrate + Nitrite as N 0.2 mg/L 2 0.1 OK
TW4-03R Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-03R Chloride 1 mg/L u 1 1 OK
TW4--03R Chloroform 1 ug/L u 1 1 OK
TW4-03R Chloromethane 1 ug/L u 1 1 OK
TW4-03R Methylene Chloride 1 ug/L u 1 1 OK
TW4-03R Nitrate + Nitrite as N 0.1 mg/L u 1 0.1 OK
TW4--04 Carbon Tetrachloride I ug/L u 1 1 OK
TW4-04 Chloride 1 mg/L 1 1 OK ll
TW4-04 Chloroform 100 ug/L 100 1 OK :
TW4-04 Ch1 oromethane 1 ug/L u 1 1 OK
TW4-04 Methylene Chloride I ug/L u 1 1 OK
TW4-04 Nitrate + Nitrite as N 0.2 mg/L 2 0.1 OK
TW4--05 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4--05 Chloride 5 mg/L 5 1 OK
TW4-05 Chloroform 1 ug/L 1 1 OK
TW4-05 Chloromethane 1 u_g/L u 1 1 OK
TW4-05 Methylene Chloride 1 ug/L u 1 1 OK
TW4-05 Nitrate + Nitrite as N 2.4 mg/L 24 0.1 OK
TW4-06 Carbon Tetrachloride 1 ug/L u 1 1 OK
-eporung 1m1t ec I 5 R L .. Ch k
Lab
Reporting Dilution Required
Location Analyle Limit Units Qualifier Factor Reporting Limil RLCheck
TW4-06 Chloride 5 mg/L 5 1 OK
TW4-06 Chloroform 1 ug/L 1 1 OK
TW4-06 Cbloromethane 1 ug/L u 1 1 OK
TW4-06 Meth ylene Chloride 1 ug/L u 1 1 OK
TW4-06 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-07 Carbon Tetrachloride 1 uJVl, u 1 1 OK
TW4-07 Chloride 1 mg/L 1 1 OK
TW4-07 Chloroform 100 ug/L 100 1 OK
TW4-07 Chloromel.hane 1 ug/L u 1 1 OK
TW4-07 Methylene Chloride 1 ug/L u 1 1 OK
TW4-07 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-08 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-08 Chloride 5 mg/L 5 1 OK
TW4-08 Chloroform 1 ug/L 1 1 OK
TW4-08 Chloromethane 1 ug/L u 1 1 OK
TW4-08 Methylene Chloride 1 ug/L u 1 1 OK
TW4-08 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-09 Carbon Teu:achl oride 1 ug/L u 1 1 OK
TW4-09 Chloride 5 mf!!L 5 1 OK
TW4-09 Chloroform 1 ug/L 1 1 OK
TW4-09 Chloromethane 1 ug/L u 1 1 OK
TW4-09 Methylene Chloride 1 ug/L u 1 1 OK
TW4-09 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-10 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-10 Chloride 1 mg/L 1 1 OK
TW4-10 Chloroform 100 u!!.IL 100 1 OK
TW4-10 Cblorometh ane 1 UJ?;/L u I 1 OK
TW4-10 Melhylene Chloride 1 ug/L u 1 1 OK
TW4-10 Nitrate + Nitrite as N 0.2 mg/L 2 0.1 OK
TW4-11 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-11 Chloride 1 mg/L 1 1 OK
TW4-ll Chloroform 100 ug/L 100 1 OK
TW4-l l Chloromethane 1 ug/L u 1 1 OK
TW4-11 Melbylene Chloride 1 uJ?;/L u 1 1 OK
TW4~11 Nitrate+ Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-12 Carbon Tetrachloride 1 uJ?;/L u 1 1 OK
TW4-12 Chloride 5 mg/L 5 1 OK
TW4-12 Chloroform 1 uwl, u I 1 OK
TW4-12 Chloromethane 1 ug/L u 1 1 OK
TW4-12 Methylene Chloride 1 ug/L u 1 1 OK
TW4-12 Nitrate+ Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-13 Carbon Tetrachloride I ug/L u 1 1 OK
TW4-13 Chloride 5 mg/L 5 1 OK
TW4-13 Chl oroform 1 ug/L u 1 1 OK Ir
TW4-13 Chloromethane 1 ug/L u 1 1 OK
TW4-13 Methylene Chloride 1 u_g/L u 1 1 OK
TW4-13 Nitrate + Nitrite as N 0.2 mg/L 2 1 OK
TW4-14 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-14 Chloride 5 mg/L 5 1 OK
TW4-14 Chloroform 1 ug/L u 1 1 OK
TW4-14 Cbloromethane 1 uwl, u 1 0.1 OK
TW4-14 Methylene Chloride 1 ug/L u 1 1 OK
TW4-14 Nitrate + Nitrite as N 0.2 mg/L 2 0.1 OK
MW-26 Carbon Tetrachloride 1 ug/L u 1 1 OK
MW-26 Chloride 1 m_g/L 1 1 OK
-eportmg urut ec I 5 R L .. Ch k
Lab
Reporting Dilution Required
Location Analyte Limit Units Qualifier Factor Report.ing Limit RLCheck
MW-26 Chloroform 100 ug/L 100 1 OK
MW-26 Chloromethane 1 ug/L u 1 1 OK
MW-26 Methylene Chloride 1 ug/L u 1 1 OK
MW-26 Njtrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-16 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-16 Chloride 1 m!!IL 1 1 OK
TW4-16 Chloroform 10 u_g/L 10 1 OK
TW4-16 Chloromethane 1 ug/L u 1 1 OK
TW4-16 Methylene Chloride 1 u_g/L u 1 1 OK
TW4-16 Nitrate + Nitrite as N 0.2 mg/L 2 0.1 OK
MW-32 Carbon Tetrachloride 1 ug/L u 1 1 OK
MW-32 Chloride 5 mg/L 5 1 OK
MW-32 Chloroform 1 ug/L u 1 1 OK
MW-32 Chloromethane 1 ug/L u 1 1 OK
MW-32 Methylene Chloride 1 ug/L u 1 1 OK
MW-32 Nitrate + Nitrite as N 0.1 mg/L u 1 0.1 OK
TW4-18 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-18 Chloride 1 mg/L 1 1 OK
TW4-18 Chloroform 1 ug/L 1 1 OK
TW4-18 Chloromethane 1 uwl, u 1 1 OK
TW4-18 Methylene Chloride 1 ug/L u 1 1 OK
TW4-18 Nitrate + Nitrite as N 0.1 mwL 1 1 OK
TW4-19 Carbon Tetrachloride 1 ug/L 1 1 OK
TW4-19 Chloride 10 mg/L 10 1 OK
TW4-19 Chloroform 100 u_g/L 100 1 OK
TW4-19 Chloromethane 1 ug/L u 1 0.1 OK
TW4-19 Methylene Chloride 1 u_g-/L u 1 1 OK
TW4-19 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-21 Carbon Tetrachloride 1 u_g/L u 1 1 OK
TW4-21 Chloride 10 mg/L 10 1 OK
TW4-21 Chloroform 100 ug/L 100 1 OK
TW4-21 Cbloromethane 1 ug/L u 1 1 OK
TW4-21 Methylene Chloride 1 ug/L u 1 1 OK
TW4-21 Nitrate+ Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-22 Carbon Tetrachloride 1 uRIL u 1 1 OK
TW4-22 Chloride 10 mg/L 10 1 OK
TW4-22 Chloroform 100 ug/L 100 1 OK
TW4-22 Chloromethane 1 ug/L u 1 1 OK
TW4-22 Methylene Chloride 1 ug/L 1 1 OK
TW4-22 Nitrate + Nitrite as N 2 mg/L 20 0.1 OK
TW4-23 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-23 Chloride 5 mwL 5 1 OK
TW4-23 Chloroform 1 ug/L u 1 1 OK
TW4-23 Chloromethane 1 ug/L u 1 1 OK
TW4-23 Methylene Chloride 1 ug/L u 1 1 OK :
TW4-23 Nitrate + Nitrite as N 0.1 mg/L u 1 0.1 OK
TW4-24 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-24 Chloride 20 mg/L 20 1 OK
TW4-24 Chloroform 1 ug/L I I OK
TW4-24 Chloromechane 1 ug/L u 1 1 OK
TW4-24 Methylene Chloride 1 ug/L u 1 1 OK
TW4-24 Nitrate + Nitrite as N 1 mg/L 10 0.1 OK
TW4-25 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-25 Chloride 1 mg/L 1 1 OK
TW4-25 Chloroform 1 ug/L u 1 1 OK
-eporung 1m1t ec I 5 R L' . Ch k
Lab
Reporting Dilution Required
Location Analyte Limit Units Qualifier Factor Reporting Limit RL Check
1W4-25 Chloromethane 1 ug/L u 1 1 OK
1W4-25 Methylene Chloride 1 ug/L u 1 1 OK
TW4-25 Nitrate + Nitrite as N 0.1 mf!/L 1 0.1 OK
TW4-26 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-26 Chloride 1 mg/L 1 1 OK
TW4-26 Chloroform 100 u2/L 100 1 OK
TW4-26 Chl.oromeLhane 1 uir/L u 1 1 OK
TW4-26 Methylene Chloride 1 ug/L u 1 1 OK
TW4-26 Nitrate + Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-27 Carbon Tetrachloride 1 ug/L u 1 I OK
TW4-27 Chloride 5 mf!!L 5 1 OK
TW4-27 Chloroform 1 ug/L 1 1 OK
TW4-27 Chloromethane 1 ug/L u 1 1 OK
TW4-27 Methylene ChJorjde 1 ug/L u I 1 OK
TW4-27 Nitrate + Nitrite as N 1 mg/L 10 0.1 OK
TW4-28 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-28 Chloride 5 mg/I.. 5 1 OK
TW4-28 Chloroform 1 ug/L u 1 1 OK
TW4-28 Chloromethane 1 ug/L u 1 1 OK
TW4-28 Methylene Chloride 1 ug/L u 1 I OK
TW4-28 Nitrate + Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-29 Carbon Tetrachloride 1 uwL u 1 1 OK
TW4-29 Chloride I mg/L I 1 OK
TW4-29 Chloroform 100 ug/L 100 1 OK
TW4-29 ChJoromethane I ug/L u 1 1 OK
TW4-29 Methylene Chloride 1 ug/L u 1 1 OK
TW4-29 Nitrate + Nitrite as N 0.1 mg/I.. 1 0.1 OK
TW4-30 Carbon Tetrachloride 1 uf!/L u 1 1 OK
TW4-30 Chloride 1 mg/I.. 1 1 OK
TW4-30 Chloroform 1 ug/L 1 1 OK
TW4-30 Chloremethane 1 ug/L u 1 1 OK
TW4-30 Methylene Chloride 1 ug/L u 1 1 OK
TW4-30 Nitrate + Nitrite as N 0.1 mg/I.. 1 0.1 OK
TW4-31 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-31 Chloride 5 mg/L 5 1 OK
TW4-31 Chloroform 1 ug/L u 1 1 OK
TW4-31 Chloromethane 1 ug/L u 1 1 OK
TW4-31 Methylene Chloride 1 ug/L u 1 1 OK
TW4-31 Nitrate + Nitrite as N 0.1 mg/I.. 1 0.1 OK
TW4-32 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-32 Chloride 5 m_g/L 5 1 OK
TW4-32 Chloroform 1 ug/L u 1 1 OK
TW4-32 CWoromethane 1 ug/L u 1 1 OK
TW4-32 Methylene Chloride 1 ug/L u 1 1 OK
TW4-32 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-33 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-33 Chloride 1 mg/I.. 1 1 OK
TW4-33 Chloroform 1 ug/L 1 1 OK
TW4-33 Chloromethane 1 ug/L u 1 1 OK
TW4-33 Methylene Chloride 1 ug/L u 1 1 OK
TW4-33 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-33R Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-33R Chloride 1 mJ!;/L u 1 1 OK
TW4-33R Chloroform 1 ug/L 1 1 OK
TW4-33R Chloromechane 1 ug/L u 1 1 OK
-eporung 1II11t ec I 5 R L .. Ch k
Lab
Reporting Dilution Required
Location Analyle Limit Units QuaLifier Factor Reporting Limit RLCheck
TW4-33R Methylene Chloride 1 ug/L u 1 1 OK
TW4-33R Nitrate + Nitrite as N 0.1 mg/L u I 0.1 OK
TW4-34 Carbon Tetrachloride 1 ug/L u I I OK
TW4-34 Chloride 5 mg/L 5 I OK
TW4-34 Chloroform I ug/L u 1 I OK
TW4-34 Chloromethane I u_idl, u I 1 OK
TW4-34 Methylene Chloride 1 ug/L u I I OK
TW4-34 Nitrate + Nitrite as N 0.1 mg/L I 0.1 OK
TW4-35 Carbon Telrachloride I ug/L u I 1 OK
TW4-35 Chloride 5 mg/L 5 I OK
TW4-35 Chloroform I ug/L u I 1 OK
TW4-35 Chloromethane I ug/L u 1 1 OK
TW4-35 Methylene Chloride 1 ug/L u 1 1 OK
TW4-35 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-36 Carbon Tetrachloride I ug/L u 1 1 OK
TW4-36 Chloride 5 mg/L 5 1 OK
TW4-36 ChlorofomJ 1 ug/L u 1 1 OK
TW4-36 Ch loromethane 1 ug/L u 1 1 OK
TW4-36 Methylene Chloride 1 ug/L u 1 1 OK
TW4-36 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-37 Carbon Tetrachloride 1 ug/L 1 1 OK
TW4-37 Chloride 10 mg/L 10 1 OK
TW4-37 Chloroform 1000 ug/L 1000 1 OK
TW4-37 Chloromethane 1 ug/L u 1 1 OK
TW4-37 Methylene Chloride 1 ug/L u 1 1 OK
TW4-37 Nitrate + Nitrite as N 1 mg/L 10 0.1 OK
TW4-38 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-38 Chloride 5 mg/L 5 1 OK
TW4-38 Chlornform 1 ag/L u 1 1 OK
TW4-38 Chloromethane 1 ug/L u 1 1 OK
TW4-38 Metbylene Chloride 1 ug/L u 1 1 OK
TW4-38 Nitrate + Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-39 Carbon Tetrachloride 1 ug/L I 1 OK
TW4-39 Chloride 1 mf!/L 1 1 OK
TW4-39 Chloroform 100 ug/L 100 1 OK
TW4-39 Chloromethane 1 ug/L u 1 1 OK
TW4-39 Methylene Chloride 1 u!efl_ u 1 1 OK
TW4-39 Nitrate+ Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-40 Carbon Tetrachloride 1 uwl, u 1 1 OK
TW4-40 Chloride 1 mg/L 1 1 OK
TW4-40 Chloroform 10 ug/L 10 I OK
TW4-40 Chlorometbane 1 ug/L u I 1 OK
TW4-40 Methylene Chloride 1 ug/L u 1 1 OK
TW4-40 Nitrate + Nitrite as N 0.1 mg/L I 0.1 OK
TW4-41 Carbon Tetrachloride 1 ug/L u 1 1 OK :
TW4-41 Chloride 1 mg/L 1 1 OK
TW4-41 Chloroform 100 u!efl_ 100 I OK
TW4-41 Chloromethane 1 ug/L u 1 1 OK
TW4-41 Methylene Chloride 1 ug/L u 1 1 OK
TW4-41 Nitrate + Nitrite as N 0.2 mg/L 2 0.1 OK
TW4-42 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-42 Chloride 5 rng/L 5 1 OK
TW4-42 Chloroform 1 ug/L u 1 1 OK
TW4-42 Chlorome!.hane I ug/L u 1 1 OK
TW4-42 Methylene Chloride 1 ue/L u 1 1 OK
-eporlmg 1m1t ec I 5 R L .. Ch k
Lab
Reporting Dilution Required
Location Analyte Limit Units Qualifier Factor Reporting Limil RLCheck
TW4-42 Nitrate + Nitrite as N 0.1 mf!/L 1 0.1 OK
TW4-43 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-43 Chloride 5 mg/L 5 1 OK
TW4-43 Chloroform 1 uwL u 1 1 OK
TW4-43 Chloromethane 1 ug/L u 1 1 OK
TW4-43 Methylene Chloride 1 ug/L u 1 j OK
TW4-43 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-60 Carbon TeLrachloride 1 ug/L u 1 1 OK
TW4-60 Chloride 1 mg/L u 1 1 OK
TW4-60 Chl.oroform 1 uJdl, u 1 1 OK
TW4-60 Chloromethane 1 ug/L u 1 1 OK
TW4-60 Methylene Chloride 1 ug/L u I 1 OK
TW4-60 Nitrate + Nitrite as N 0.1 mf!/L u 1 0.1 OK
TW4-65 Carbon Tetrachloride 1 ug/L u 1 I OK
TW4-65 Chloride 5 mg/L 5 1 OK
TW4-65 Chloroform 1 uf!/L u 1 1 OK
TW4-65 Chloromethane 1 u!UL u 1 1 OK
TW4-65 Methylene Chloride 1 ug/L u 1 l OK
TW4-65 Nitrate + Nitrite as N 0.5 mf!!L 5 0.1 OK
TW4-70 Carbon Tetrachloride 1 uf!/L u 1 1 OK
TW4-70 Chloride 5 mf!/L 5 1 OK
TW4-70 Chloroform 1 ug/L 1 1 OK
TW4-70 Chloromethane 1 ug/L u 1 1 OK
TW4-70 Methylene Chloride 1 ug/L u 1 1 OK
TW4-70 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-75 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-75 Chloride 1 mf!/L 1 1 OK
TW4-75 Chloroform 1 ug/L 1 1 OK
TW4-75 Chloromelhane 1 ug/L u 1 1 OK
TW4-75 Methylene Chloride 1 ug/L u 1 1 OK
TW4-75 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
I-6 Trip Blank Evaluation
Lab Report Constituent Result
Carbon tetrachloride ND ug/L
22L0202 Chloroform ND ug/L
Chloromethane ND ug/L
MeLhylene chloride ND ug/L
Carbon telrachloride ND u,g/1,
22L0766 Chloroform ND ug/L
Chloromethane ND ug/L
Melhylene chloride ND ug/L
Carbon tetrachloride ND ug/L
22Ll102 Chloroform ND ug/L
Chloromethane ND ug/L
Methylene chloride ND ug/L
I:'
1-7 QNQC Evaluation for Sample Duplicates
Constituent
Chloride (mg/L)
Nitrate + Nitrite (as N)
Carbon Tetrachloride
Chl oroform
Chloromethane
Dichlorometh ane (Methylene Chloride)
Constituent
Chloride (mg/L)
NitraLe + Nitrite (as N)
Carbon Tetrachloride
Chloroform
Ch loromethane
Di.chloromethane (Methylene Chloride)
Constituent
Chloride (mg/L)
Nitrate + Nitrite (as N)
Carbon Tetrachloride
Chloroform
Chloromethane
Dichloromethane_ (Methylene Chloride)
RPD = Relative Percent Difference
ND = The analyte was not detected
TW4-12 TW4-65
49.2 50.9
4.68 7.02
ND ND
ND ND
ND ND
ND ND
TW4-09 TW4-70
33.2 58.5
0.676 0.660
ND ND
6.7 6.0
ND ND
ND ND
TW4-18 TW4-75
44.4 45.2
3.60 3.63
ND ND
62.6 67.9
ND ND
ND ND
Highlighted cells indicate an RPD that exceeded the 20% RPO criteria
%RPO
3.4
40.0
NC
NC
NC
NC
%RPO
55.2
2.4
NC
11.0
NC
NC
%RPO
1.8
0.8
NC
8.1
NC
NC
1-8 QC Control Limits for Analysis and Blanks
Method Blank Detections
All Method Blanks (MB) for the quarter were nondetect.
Matrix Spike % Recoveries
MS MSD
Lab Report Lab Sample ID WeJI Aoalyte %REC %REC
22L0202 22L0202-01 TW4-25 Chloride NC NC
22L0202 NIA NIA Chloride 80.4 79.3
22L0202 22L0202-01 TW4-25 Chloromethane 67.2 66.3
22L0766 22L0766-22 TW4-05 Nitrate 222 233
Carbon
22L0766 22L0766-03 TW4-03 Teirachloridc 31.6 31.0
Carbon
22L0766 22L0766-13 TW4-23 Tetrachloride 67.5 58.5
NC -Not calculated
* -Recovery was not calculated because the analyte of the sample was greater than 4 times the spike amount
NIA= QC was not performed on an EFRI sample.
Laboratory Control Sample
Lab Report Analyt.e LCS %REC REC Range
22L0202 Carbon Tetrachloride 49.1 70-130
22L0202 Chloromethane 46.0 70-130
22L0766 Carbon Tetrachloride 67.6 70-130
22L0766 Carbon Tetrachloride 62.0 70-130
22Lll02 Chloromelhane 61.5 70-130
Surrogate % Recovery
All Surrogate recoveries were within acceptance limits for the quarter.
REC Range RPO RPDRaoge
80-120 NC 20
80-120 0.255 20
70-130 1.35 20
80 -120 1.06 20
70-130 1.92 20
70-130 14.3 20
I-9 Rinsate Evaluation
Rinsate
Rinsate Result
Sample Parameter (ug/L) Previous Well Purged
TW4-03R Chloroform ND NA
TW4-33R Chloroform 2.2 TW4-38 ( 36.4 ug/L)
NA = This rinsate sample was collected prior to the first use of the pump.
;;
---•
.___
-=
TabJ
Kriged Current Quarter Chloroform Isoconcentration Map
.-... .,
dry • MW-21
EXPLANATION
\
ND • MW-20
;•.
ND • MW•3A
NS = not sampled; ND = not detected
TW4-43
~ND
TWN-21
l]NS
TW4-42
◊ND
MW-38
"9-ND
MW-32
e No
TW4-7
0 824
TWN-1 ◊NS
PIEZ-1
.i NS
kriged chloroform isocon and label
temporary perched monitoring well
installed September, 2021 showing
concentration in µg/L
temporary perched nitrate monitoring
well installed April, 2021 (nol sampled)
temporary perched monitoring well
installed April, 2019 showing
concentration in µg/L
perched monitoring well
installed February, 2018 showing
concentration in µg/L
perched monitoring well showing
concentration in µg/L
temporary perched monitoring well
showing concentration in µg/L
temporary perched nitrate monitoring
well (not sampled)
perched piezometer (not sampled)
"'
ND • MW-29
!!a
~-:,!,
••,;
ND • MW-30
NS a TWN-20
Ill
ND • MW-17
NO ❖ MW-38
ND • MW-01
abandoned • TWN-15
abandoned • TWN-10
abandoned • TWN-11
NS • TWN•14
NS
abandoned • TWN-09
abandoned • TWN-05
NS ..
TWN-07
ND • MW-18
NS • TW_N-18
NS
.jlWN-03
• TWN-06
abandoned ..
TWN-08
NS .
PIEZ--01
ND . ' MW-19
'~NS
ND -•' • TWN-02 -27
Pl~A
4-18,
0 -· • '4-., -0 0-c~b11d1!{/1'3'1 h ~4-0_5 \f 23f&4'37TW4•2'0 ~~ !l TW4-38
ND • MW-31
964Dt.... -mf'4_ nND TW4-12
ND ..
D oND
W4-03 rwt 2i ~i-32
~ ~ ;, .
4-f6 r,J,W4-11 ' . TW4-13 -Zlll)~' oN D ,;.• --""f 4-Q2 V, -, W--04 NP
ND ,,!.!!f.ffl~ T~4-08 ":'iw4'G"6
• ·••q -~ .. o,
MW-3;!_-• ., ~• 050
,;• ..,_T.W4-040 W,4-4) 1110:
..::,:,, 103 °im4-14
·~ -· -~-. 'l:w4-0~ 51 1W4'2'71,vv¾31 ee 'IQ <! ''oNO lW4-33 2
2111[ -rw4-fRR' j ""~o o 'O "iiw4-43 f'lQo TW~•-
TW4~
ND .. MW-40
MW-39
rti
1 mile
ND • MW-22
NS •. ,
TWN-16
abandoned • TWN-12
~
NOTES: MW-4, MW-26, TW4·1, TW4-2, TW4·4, TW4•11, TW4-19, TW4·21, TW4-37, TW4-39, TW4-40 and TW4-41 are
chloroform pumping wells; TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells; MW-24A installed December, 2019
HYDRO
GEO
CHEM, INC.
KRIGED 4th QUARTER, 2022 CHLOROFORM (µg/L)
WHITE MESA SITE
APPAOVE.D DATE REFERENCE
H:/718000/feb23/chloroform/Uchl1222.srf
FIGURE
J-1
..._
~ ,.
TW4-43
~ND
(.""TWN-02 oNTS r ,..
TW4-25
/ONO
-jl'-:")
TW N~-~'>'i.c..,_~ • 0 7380 1()2350 -:;:,.-·I ::1"•--
EKPLANAIION
NS : not sampled; ND : not detected
kriged chloroform isocon and label
temporary perched monitoring well
installed September, 2021 showing
concentration in µg/L
6490 Oalbnd
_, __ _
OTW4-28
ND TW4-32
0
ND
., 0 1030
o:W-:.84 o OWl.4-08 4-01 -·lJ Otw.4-36
;1.010 I
TW4-14
ONO
rwi-33,-w4-27
' 51 0 OTW4-31 -2 ND
TW4-29 OTW4-30
0 61
58Brw4.35TW4-43
ONO · ~ND
TW4-34
0
ND
TW4-42 temporary perched monitoring well
¢ ND installed April, 2019 showing
concentration in µg/L
NOTES: MW-4, MW-26, TW4-1, TW4•2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 are
chloroform pumping wells; TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells
MW-32
e ND
TW4-7
0 824
PIEZ-2
.i NS
perched monitoring well showing
concentration (µg/L)
temporary perched monitoring well
showing concentration (µg/L)
perched piezometer (not sampled)
. ,, '' " I' '" l
HYDRO
GEO
CHEM, INC.
KRIGED 4th QUARTER, 2022 CHLOROFORM (µg/L)
WHITE MESA SITE
(detail map)
APPRO\1£0 DATE REFERENCE FIGURE
H :/718000/feb23/chloroform/Uch 1222det.srf I J-2
~tt. __ r·. ,. -~
.. J
"
.I
:;-
.. TW4-25
-r ·10 ND
• l' .,. ~.=.
TW4-2-1 .6 4.82
·""'-I/
TW4-24
0 80
'7380 . .. ,,..d "-------
NS = not sampled; NO = not detected
..._
TW4-43
~ND
kriged chloroform isocon and label
temporary perched monitoring well
installed September, 2021 showing
concentration in µg/L
TW4-42 temporary perched monitoring well
¢ ND Installed April, 2019 showing
concentration in µg/L
MW-32
e NO
TW4-7
0 824
PIEZ-2
'-NS
perched monitoring well showing
concentration (µg/L)
temporary perched monitoring well
showing concentration (µg/L)
perched piezometer (not sampled)
I O •• l , r "'"
964po Daond-_
TW(j~33rw4-27
51 . 0 OTW4-31 -2 ND
T~4-2,9 fY'fW4-30 O·. 61
-588rw4-3b=f"W4-4c3
n ND · *ND
TW-4--34
0 ND
NOTES: MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 are
chloroform pumping wells; TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells
HYDRO
GEO
CHEM, INC.
4th QUARTER, 2022 CHLOROFORM
GREATER THAN OR EQUAL TO 70 µg/L GRID
WHITE MESA SITE
APPROVED DATE REFERENCE FIGURE
H:/718000/feb23/chloroform/Uch1222ge70.srf I J-3
TabK
Analyte Concentration Data and Chloroform Concentration Trend Graphs over Time
Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-4 Tetrachloride (ug/1) (uom (ug/1) Chloride (ug/1) (mg/I) (mg/I)
28-Sep-99 6200
28-Sep-99 5820
28-Sep-99 6020
15-Mar-00 5520
15-Mar-00 5430
2-Sep-00 5420 9.63
30-Nov-00 6470 9.37
29-Mar-01 4360 8.77
22-Jun-01 6300 9.02
20-Sep-01 5300 9.45
8-Nov-01 5200 8
26-Mar-02 4700 8.19
22-May-02 4300 8.21
12-Sep-02 6000 8.45
24-Nov-02 2500 8.1
28-Mar-03 2000 8.3
30-Apr-03 3300 NA
30-May-03 3400 8.2
23-Jun-03 4300 8.2
30-Jul-03 3600 8.1
29-Aug-03 4100 8.4
12-Sep-03 3500 8.5
15-Oct-03 3800 8.1
8-Nov-03 3800 8
29-Mar-04 NA NA
22-Jun-04 NA NA
17-Sep-04 3300 6.71
17-Nov-04 4300 7.5
16-Mar-05 2900 6.3
25-May-05 3170 NA NA NA 7.1 NA
31-Aug-05 3500 <10 <10 <10 7.0 NA
1-Dec-05 3000 <50 <50 <50 7.0 NA
9-Mar-06 3100 <50 <50 50 6 49
14-Jun-06 3000 <50 <50 50 6 49
20-Jul-06 2820 <50 <50 <50 1.2 48
9-Nov-06 2830 2.1 1.4 <1 6.4 50
28-Feb-07 2300 1.6 <1 <1 6.3 47
27-Jun-07 2000 1.8 <1 <1 7 45
15-Aug-07 2600 1.9 <I <1 6.2 47
10-Oct-07 2300 1.7 <1 <1 6.2 45
26-Mar-08 2400 1.7 <1 <1 5.8 42
25-Jun-08 2500 1.6 <1 <1 6.09 42
10-Sep-08 1800 1.8 <1 <1 6.36 35
15-Oct-08 2100 1.7 <1 <1 5.86 45
4-Mar-09 2200 1.5 <1 <l 5.7 37
23-Jun-09 1800 1.3 <l <l 5.2 34
14-Sep-09 2000 1.4 <l <1 5.3 43
Chloroform Carbon €bloromethane Methylene Nitrate Chloride MW-4 Tetrachloride (ug/1) (u2fl) (ug/1) Chloride (ug/1) (mg/I) (mg/I)
14-Dec-09 1800 1.6 ND ND 5.8 44
17-Feb-I 0 1600 1.2 ND ND 4 45
14-Jun-10 2100 1.2 ND ND 5.1 41
16-Aug-IO 1900 1.5 ND ND 4.8 38
11-Oct-l 0 1500 1.4 ND ND 4.9 41
23-Feb-l l 1700 1.5 ND ND 4.6 40
I-Jun-I I 1700 1.4 ND ND 4.9 35
17-Aug-I I 1700 I.I ND ND 4.9 41
16-Nov-l l 1600 1.3 ND ND 5.1 40
23-Jan-12 1500 J ND ND 4.8 41
6-Jun-12 1400 1.2 ND ND 4.9 39
4-Sep-12 1500 L.5 ND ND 5 41
4-Oct-12 1300 1 ND ND 4.8 42
11-Feb-13 1670 1.49 ND ND 4.78 37.8
5-Jun-13 1490 1.31 ND ND 4.22 44
3-Sep-13 1520 1.13 ND ND 4.89 41.4
29-Oct-13 1410 5.58 ND ND 5.25 40.1
27-Jan-14 1390 4.15 ND ND 4.7 38.5
19-May-14 1390 5.21 ND ND 4.08 39.9
24-Aug-14 1490 ND 7.6 ND 3.7 41
21-Oct-14 1440 ND ND ND 5.07 41.5
9-Mar-15 1400 1.26 ND ND 5.75 40.7
8-Jun-15 1300 ND ND ND 2.53 43.1
31-Aug-15 1290 ND ND ND 4.79 44.3
19-Oct-15 1200 ND ND ND 4.43 40.8
9-Mar-16 1240 ND ND ND 5.15 42.2
23-May-16 1580 1.44 ND ND 4.54 43.7
25-Jul-16 1430 ND ND ND 4.95 42.5
12-Oct-16 1470 1.24 ND ND 4.88 44.8
8-Mar-17 1450 1.22 ND ND 4.99 43.3
13-Jun-l 7 1430 1.15 ND ND 4.88 44.0
26-Jul-17 1400 1.15 ND ND 4.59 43.8
11-Oct-17 1320 ND ND ND 5.25 43.8
12-Mar-18 1320 1.07 ND ND 4.47 46.2
8-Jun-18 1240 ND ND ND 4.64 43.5
22-Aug-18 1300 ND ND ND 4.55 48:5
28-Nov-18 1330 ND ND ND 4.44 43.1
8-Mar-19 1190 ND ND ND 5.05 41.5
5-Jun-19 1300 ND ND ND 5.16 40.6
4-Sep-19 1180 ND ND ND 4.69 41.9
ll-Dec-19 1370 ND ND ND 4.34 45.5
19-Feb-20 1230 ND ND ND 6.22 48.1
27-May-20 1250 ND ND ND 5.04 40.7
4-Sep-20 1240 ND ND ND 4.93 43.8
28-Oct-20 1050 ND ND ND 4.62 41.4
23-Feb-21 1150 ND ND ND 4.61 46.5
9-Jun-21 1320 ND ND ND 6.48 34.8
24-Aug-21 1140 ND ND ND 3.83 43.2
l-Dec-21 ll00 ND ND ND 4.9 47.6
9-Mar-22 1040 ND ND ND 4.8 40.9
8-Jun-22 1010 ND ND ND 3.9 43 .7
30-Aug-22 1200 ND ND ND 4.20 44.7
30-Nov-22 l170 ND ND ND 4.05 35 .9
0
....a.
0 0 0
I\J 0 0 0
(ug/L)
w 0 0 0
.i:,.
0 0 0
01 0 0 0
0) 0 0 0
-..J 0 0 0
Sep-99 1 -----t-------,---+----+-------.,--t----+~t----4
Mar-00
Sep-00 ·
Mar-01
Sep-01
Mar-02
Sep-02
g~H I E J 11·:
Mar-05 · t-j ~
Sep-05 -
Mar-06
Sep-06
Mar-07
Sep-07
Mar-08
Sep-08
Mar-09
Sep-09
Mar-10
Sep-10
Mar-11
Sep-11
Mar-12 -
Sep-12 -
Mar-13
Sep-13
Mar-14
Sep-14
Mar-15
Sep-15
Mar-16
Sep-16
Mar-17
Sep-17
Mar-18
Sep-18
Mar-19
Sep-19
Mar-20
Sep-20
Mar-21
Sep-21
Mar-22
Sep-22 Mar-23 _,__ __ __,J ___ ....J.... ___ L_ __ ___i_ ___ ...L __ _J ___ _J
s:::
:E .J:=,.
I (') ::::r
0 a ..... 0 ..... 3
~
C:
CD en
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-1 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/1) (ug/1)
28-Jun-99 1700 7.2
10-Nov-99 5.8
15-Mar-00 1100
10-Apr-00 1490
6-Jun-00 1530
2-Sep-00 2320 5.58
30-Nov-00 3440 7.79
29-Mar-01 2340 7.15
22-Jun-01 6000 8.81
20-Sep-01 12.8
8-Nov-01 3200 12.4
26-Mar-02 3200 13.1
22-May-02 2800 12.7
12-Sep-02 3300 12.8
24-Nov-02 3500 13.6
28-Mar-03 3000 12.4
23-Jun-03 3600 12.5
12-Sep-03 2700 12.5
8-Nov-03 3400 11.8
29-Mar-04 3200 11
22-Jun-04 3100 8.78
17-Sep-04 2800 10.8
17-Nov-04 3000 11.1
16-Mar-05 2700 9.1
25-May-05 3080 NA NA NA 10.6 NA
31-Aug-05 2900 <10 <10 <10 9.8 NA
l-Dec-05 2400 <50 <50 <50 9.7 NA
9-Mar-06 2700 <50 <50 <50 9.4 49
14-Jun-06 2200 <50 <50 <50 9.8 48
20-Jul-06 2840 <50 <50 <50 9.7 51
8-Nov-06 2260 1.4 <1 <1 9.4 47
28-Feb-07 1900 1.2 <1 <1 8.9 47
27-Jun-07 1900 1.4 <1 <1 9 45
15-Aug-07 2300 1.3 <1 <1 8.4 43
10-Oct-07 2000 1.3 <1 <1 7.8 43
26-Mar-08 2000 1.3 <1 <1 7.6 39
25-Jun-08 1900 1.1 <1 <1 8.68 39
10-Sep-08 1700 1.3 <1 <1 8.15 35
15-Oct-08 1700 1.3 <1 <1 9.3 41
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-1 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/1) (ug/1)
11-Mar-09 1700 1.1 <1 <1 7.5 37
24-Jun-09 1500 1 <1 <1 6.9 37
15-Sep-09 1700 <1 <1 <1 7.3 36
29-Dec-09 1400 <1 <1 <1 6.8 41
3-Mar-10 1300 <1 <1 <1 7.1 35
15-Jun-10 1600 1.2 <1 <1 6.8 40
24-Aug-10 1500 <1 <1 <1 6.8 35
14-Oct-10 1500 <1 <1 <1 6.6 40
24-Feb-l 1 1300 ND ND ND 6.6 41
l-Jun-11 1200 ND ND ND 7 35
18-Aug-11 1300 ND ND ND 6.8 36
29-Nov-11 1300 ND ND ND 6.6 37
19-Jan-12 1300 ND ND ND 6.8 38
14-Jun-12 1000 ND ND ND 7.1 42
13-Sep-12 1000 ND ND ND 5 39
4-Oct-12 1100 ND ND ND 6.5 40
13-Feb-13 1320 3.66 ND ND 6.99 37.6
19-Jun-13 1100 ND ND ND 6.87 39.1
12-Sep-13 1150 ND ND ND 7.12 37.6
14-Nov-13 1280 ND ND ND 7.08 36.5
5-Feb-14 1090 5.47 ND ND 7.74 38.9
23-May-14 1020 4.77 ND ND 6.93 37.4
27-Aug-14 845 ND 1.4 ND 4.8 38
29-Oct-14 1140 ND ND ND 6.31 38.7
9-Mar-15 1130 ND ND ND 7.06 38.3
8-Jun-15 1260 ND ND ND 6.07 40.3
31-Aug-15 1060 ND ND ND 6.28 45.9
19-Oct-15 1040 ND ND ND 1.55 38.5
9-Mar-16 974 ND ND ND 0.148 41.7
23-May-16 1140 ND ND ND 0.138 44.4
25-Jul-16 1160 ND ND ND 5.49 44.7
13-Oct-16 1330 ND ND ND 0.746 44.2
8-Mar-17 519 ND ND ND 4.44 41.5
13-Jun-17 977 ND ND ND 5.74 41.8
26-Jul-17 958 ND ND ND 5.04 42.8
11-Oct-17 556 ND ND ND 5.78 38.5
12-Mar-18 70.4 ND ND ND 4.84 45.8
8-Jun-18 942 ND ND ND 4.38 42.0
22-Aug-18 1010 ND ND ND 4.30 47.3
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-1 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/1) (ug/1)
22-Oct-18 752 ND ND ND 4.57 43.2
8-Mar-19 87.2 ND ND ND 4.51 40.9
5-J'un-19 1040 ND ND ND 1.43 44.8
4-Sep-19 894 ND ND ND 1.65 46.0
10-Dec-19 1070 ND ND ND 3.91 44.2
19-Feb-20 1190 ND ND ND 4.67 47.5
27-May-20 499 ND ND ND 0.443 46.4
4-Sep-20 1060 ND ND ND 2.22 43.7
28-Oct-20 924 ND ND ND 4.30 41.9
23-Feb-21 948 ND ND ND 27.2 45.4
9-Jun-21 957 ND ND ND 0.728 37.2
24-Aug-21 821 ND 1.18 ND 1.38 44.5
1-Dec-21 957 ND ND ND 4.37 45.5
9-Mar-22 946 ND ND ND 3.9 42.6
8-Jun-22 914 ND ND ND 0.18 45.5
30-Aug-22 954 ND ND ND 0.420 45.1
30-Nov-22 1010 ND ND ND 3.62 38.2
0
.....
0 0 0
I\) 0 0 0
(ug/L)
w 0 0 0
""" 0 0 0
01 0 0 0
CJ) 0 0 0
-...J 0 0 0
28-Jun-99 t_ I ■ j / j j i ( I
28-Dec-99
28-Jun-00
28-Dec-00
28-Jun-01
28-Dec-01
28-Jun-02
28-Dec-02
28-Jun-03
28-Dec-03 ~
28-Jun-04
28-Dec-04
28-Jun-05
28-Dec-05
28-Jun-06
28-Dec-06
28-Jun-07
28-Dec-07
28-Jun-08
28-Dec-08
28-Jun-09
28-Dec-09
28-Jun-10
28-Dec-10
28-Jun-11
28-Dec-11
28-Jun-12
28-Dec-12
28-Jun-13
28-Dec-13
28-Jun-14
28-Dec-14
28-Jun-15
28-Dec-15
28-Jun-16
28-Dec-16
28-Jun-17
28-Dec-17
28-Jun-18
28-Dec-18
28-Jun-19
28-Dec-19
28-Jun-20
28-Dec-20
28-Jun-21
28-Dec-21
28-Jun-22
28-Dec-22 ...,____,.'--___.._ __ __.__ __ ____. ___ _,_ ___ ~--~--~
-4 ~ ~ I ....
0 :::r
0 ... 0 -0 ...
3
< !!.
C
(I)
0
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-2 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwl) (uwl)
10-Nov-99 2510
2-Sep-00 5220
28-Nov-00 4220 10.7
29-Mar-01 3890 10.2
22-Jun-0l 5500 9.67
20-Sep-0l 4900 11.4
8-Nov-01 5300 10.l
26-Mar-02 5100 9.98
23-May-02 4700 9.78
12-Sep-02 6000 9.44
24-Nov-02 5400 10.4
28-Mar-03 4700 9.5
23-Jun-03 5100 9.6
12-Sep-03 3200 8.6
8-Nov-03 4700 9.7
29-Mar-04 4200 9.14
22-Jun-04 4300 8.22
17-Sep-04 4100 8.4
17-Nov-04 4500 8.6
16-Mar-05 3700 7.7
25-May-05 3750 8.6
31-Aug-05 3900 <10 <10 <10 8 NA
l-Dec-05 3500 <50 <50 <50 7.8 NA
9-Mar-06 3800 <50 <50 <50 7.5 56
14-Jun-06 3200 <50 <50 <50 7.1 56
20-Jul-06 4120 <50 <50 <50 7.4 54
8-Nov-06 3420 2.3 <l <l 7.6 55
28-Feb-07 2900 1.8 <l <1 7.3 54
27-Jun-07 3000 2.5 <1 <1 7.8 50
15-Aug-07 340 2.2 <l <1 7.3 49
10-Oct-07 3200 2.1 <1 <1 6.9 51
26-Mar-08 3300 2.3 <l <1 6.9 48
25-Jun-08 3100 2.2 <1 <1 7.44 46
10-Sep-08 2800 2.4 <1 <1 7.1 42
15-Oct-08 3200 2.4 <2 <2 7.99 47
11-Mar-09 3100 2.2 <l <1 6.5 46
24-Jun-09 2800 2 <l <I 6.4 44
15-Sep-09 3000 2 <l <I 6.6 43
29-Dec-09 1600 2 <1 <I 6.4 46
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-2 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (02'1) (u2'1)
3-Mar-10 2600 2 <1 <1 6.8 42
15-Jun-10 3300 2.6 <1 <1 6.7 43
16-Aug-10 3300 2.5 <l <1 6.6 43
14-Oct-10 3000 2.1 <l <1 6.5 41
24-Feb-l 1 3100 2.4 ND ND 7 46
2-Jun-11 3000 2.2 ND ND 6.8 42
17-Aug-11 2400 1.6 ND ND 6 48
29-Nov-11 3900 2.8 ND ND 7 49
24-Jan-12 2500 2 ND ND 7.1 49
14-Jun-12 2500 2.1 ND ND 7.7 52
13-Sep-12 2900 1.8 ND ND 4 76
4-Oct-12 3100 2 ND ND 7.6 49
13-Feb-13 3580 5.17 ND ND 8.1 46
19-Jun-13 3110 2.65 ND ND 7.51 46.9
12-Sep-13 3480 2.41 ND ND 9.3 44.9
14-Nov-13 3740 3.15 ND ND 8.39 43.9
6-Feb-14 3180 7.1 ND ND 7.87 45.9
23-May-14 2930 6.05 ND ND 9.11 45.4
27-Aug-14 3170 1.4 3.6 ND 6.2 45
30-Oct-14 3580 2.6 ND ND 8.45 45.5
9-Mar-15 1840 1.44 ND ND 5.32 44.9
8-Jun-15 1650 ND ND ND 4.3 48.l
31-Aug-15 1310 ND ND ND 3.76 50.0
19-Oct-15 2070 ND ND ND 5.18 41.9
9-Mar-16 1970 1.20 ND ND 5.30 43.4
23-May-16 2070 1.49 ND ND 5.67 43.8
25-Jul-16 1780 ND ND ND 4.07 42.9
12-Oct-16 1600 ND ND ND 6.07 44.3
8-Mar-17 1570 ND ND ND 4.74 43.l
13-Jun-17 1940 ND ND ND 4.90 43.6
26-Jul-17 1310 ND ND ND 5.08 43.2
11-Oct-17 1610 ND ND ND 3.28 43.5
12-Mar-18 764 ND ND ND 2.94 44.4
8-Jun-18 949 ND ND ND 3.50 41.3
22-Aug-18 980 ND ND ND 4.83 44.3
28-Nov-18 822 ND ND ND 3.52 41.7
8-Mar-19 1040 ND ND ND 3.92 40.4
5-Jun-19 1360 ND ND ND 4.38 39.8
4-Sep-19 797 ND ND ND 4.79 40.8
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-2 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwl) (owl)
10-Dec-19 934 ND ND ND 3.40 41.5
19-Feb-20 1880 ND ND ND 6.07 42.1
27-May-20 1070 ND ND ND 3.62 40.6
4-Sep-20 1260 ND ND ND 3.35 41.3
28-Oct-20 1130 ND ND ND 2.34 38.7
23-Feb-21 939 ND ND ND 3.30 43.3
9-Jun-21 1160 ND ND ND 3.89 32.5
24-Aug-21 1150 ND ND ND 1.97 36.8
l-Dec-21 852 ND ND ND 3.49 41.9
9-Mar-22 1020 ND ND ND 3.3 36.7
8-Jun-22 892 ND ND ND 3.1 39.5
30-Aug-22 832 ND ND ND 3.07 40.7
30-Nov-22 1030 ND ND ND 3.74 35.5
(ug/L)
Nov-99 .------,-------.-----.=------,r---"TT"----,----,
May-00
Nov-00
May-01
Nov-01
May-02
Nov-02
May-03
Nov-03
May-04
Nov-04
May-05
Nov-05
May-06
Nov-06
May-07
Nov-07
May-08
Nov-08
May-09
Nov-09
May-10
Nov-10 -
May-11
Nov-11
May-12
Nov-12
May-13 -
Nov-13
May-14
Nov-14 -
May-15 j
Nov-15
May-16
Nov-16
May-17
Nov-17
May-18
Nov-18
May-19
Nov-19 -
May-20
Nov-20
May-21 -
Nov-21 ~
May-22 °
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-3 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (ue/1)
28-Jun-99 3500 7.6
29-Nov-99 702
15-Mar-00 834
2-Sep-00 836 1.56
29-Nov-00 836 1.97
27-Mar-0I 347 1.85
21-Jun-0l 390 2.61
20-Sep-0l 300 3.06
7-Nov-01 170 3.6
26-Mar-02 11 3.87
21-May-02 204 4.34
12-Sep-02 203 4.32
24-Nov-02 102 4.9
28-Mar-03 0 4.6
23-Jun-03 0 4.8
12-Sep-03 0 4.3
8-Nov-03 0 4.8
29-Mar-04 0 4.48
22-Jun-04 0 3.68
17-Sep-04 0 3.88
17-Nov-04 0 4.1
16-Mar-05 0 3.5
25-May-05 <1 NA NA NA 3.7 NA
31-Aug-05 <1 <l 6.4 <1 3.5 NA
1-Dec-05 <1 <1 2.3 <1 3.3 NA
9-Mar-06 <1 <1 2.2 <1 3.3 26
14-Jun-06 <1 <l <1 <1 3.2 26
20-Jul-06 <l <1 1.6 <l 2.9 26
8-Nov-06 <1 <1 <1 <1 1.5 23
28-Feb-07 <l <1 <1 <l 3.1 22
27-Jun-07 <1 <1 <1 <1 3.3 23
15-Aug-07 <1 <1 <1 <1 3.1 24
10-Oct-07 <l <l <l <l 2.8 27
26-Mar-08 <l <l <1 <l 2.8 21
25-Jun-08 <l <l <l <l 2.85 19
10-Sep-08 <l <l <l <l 2.66 19
15-Oct-08 <l <1 <1 <l 2.63 22
4-Mar-09 <1 <1 <l <1 2.5 21
24-Jun-09 <l <l <l <1 2.9 20
15-Sep-09 <1 <l <l <1 2.8 21
16-Dec-09 <l <l <l <l 2.5 22
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-3 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uf!/1), (uf!/1)
23-Feb-10 <1 <] <1 <] 2.8 23
8-Jun-10 <1 <1 <1 <l 3 24
IO-Aug-10 <1 <l <l <l 3.1 22
5-0ct-IO <1 <I <l <1 3.3 26
15-Feb-11 ND ND ND ND 3.5 23
25-May-l l ND ND ND ND 3.7 23
16-Aug-1 l ND ND ND ND 4 23
15-Nov-11 ND ND ND ND 4.4 23
17-Jan-12 ND ND ND ND 4.3 · 21
31-May-12 ND ND ND ND 4.4 24
29-Aug-l 2 ND ND ND ND 4.9 25
3-Oct-12 ND ND ND ND 4.8 25
7-Feb-13 ND ND ND ND 5.05 23.7
29-May-13 ND ND ND ND 5.83 23.8
29-Aug-13 ND ND ND ND 6.26 24.0
6-Nov-13 ND ND ND ND 5.89 24.J
22-Jan-14 ND ND ND ND 6.66 24.9
19-May-14 ND ND ND ND 6.01 24.4
13-Aug-14 ND ND ND ND 5.3 26
23-Oct-14 ND ND ND ND 6.07 26.7
ll-Mar-15 ND ND ND ND 6.64 26.2
I 0-Jun-15 ND ND ND ND 5.71 27.5
2-Sep-15 ND ND ND ND 3.88 27.4
21-Oct-15 ND ND ND ND 5.37 25.6
15-Mar-16 ND ND ND ND 5.83 32.8
25-May-16 ND ND ND ND 5.65 27.9
27-Jul-16 ND ND ND ND 6.10 26.5
19-Oct-16 ND ND ND ND 6.00 29.5
14-Mar-17 ND ND ND ND 6.18 28.l
14-Jun-17 ND ND ND ND 6.36 28.7
27-Jul-17 ND ND ND ND 6.36 28.5
10-Oct-17 ND ND ND ND 6.32 25.9
14-Mar-18 ND ND ND ND 6.46 29.8
12-Jun-I 8 ND ND ND ND 6.52 26.1
29-Aug-18 ND ND ND ND 5.53 31.0
30-Nov-18 ND ND ND ND 5.85 27.4
13-Mar-19 ND ND ND ND 5.82 25.5
13-Jun-19 ND ND ND ND 6.68 27.4
ll-Sep-19 ND ND ND ND 5.12 26.0
12-Dec-19 ND ND ND ND 5.91 28.0
17-Mar-20 ND ND ND ND 6.15 27.7
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-3 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue'ID (u2'1)
10-Jun-20 ND ND ND ND 6.53 26.2
17-Sep-20 ND ND ND ND 6.36 25.9
4-Nov-20 ND ND ND ND 6.02 24.9
17-Mar-21 ND ND ND ND 6.1 9 28.4
I 5-Jun-21 ND ND ND ND 8.04 27.0
I 5-Sep-21 ND ND ND ND 5.28 20.3
7-Dec-21 ND ND ND ND 5.97 26.2
15-Mar-22 ND ND ND ND 6.1 24.3
15-Jun-22 ND ND ND ND 5.8 26.7
13-Sep-22 ND ND ND ND 5.47 27.3
7-Dec-22 ND ND ND ND 6.64 21.5
Jun-99
Dec-99
Jun-00
Dec-00
Jun-01
Dec-01
Jun-02
Dec-02
Jun-03
Dec-03
Jun-04
Dec-04
Jun-05
Dec-05
Jun-06
Dec-06
Jun-07
Dec-07
Jun-08
Dec-08
Jun-09
Dec-09
Jun-10
Dec-10
Jun-11
Dec-11
Jun-12
Dec-12
Jun-13
Dec-13
Jun-14
Dec-14
Jun-15
Dec-15
Jun-16
Dec-16
Jun-17
Dec-17
Jun-18
Dec-18
Jun-19
Dec-19
Jun-20
Dec-20
Jun-21
Dec-21
Jun-22
Dec-22
9 0
......
01 0 0 0 0 0 0 0
(ug/L)
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-4 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (02/1) (ow.I)
6-Jun-00 0
2-Sep-00 0
28-Nov-00 3.9
28-Mar-01 2260 1.02
20-Jun-0l 3100 14.5
20-Sep-0l 3200 14
8-Nov-01 2900 14.8
26-Mar-02 3400 15
22-May-02 3200 13 .2
12-Sep-02 4000 13.4
24-Nov-02 3800 12.6
28-Mar-03 3300 13.4
23-Jun-03 3600 12.8
12-Sep-03 2900 12.3
8-Nov-03 3500 12.3
29-Mar-04 3200 12.2
22-Jun-04 3500 12.l
17-Sep-04 3100 11.1
17-Nov-04 3600 10.8
16-Mar-05 3100 11.6
25-May-05 2400 NA NA NA 11.3 NA
31-Aug-05 3200 <10 <10 <10 9.9 NA
1-Dec-05 2800 <50 <50 <50 10.2 NA
9-Mar-06 2900 <50 <50 <50 9.5 51
14-Jun-06 2600 <50 <50 <50 8.6 48
20-Jul-06 2850 <50 <50 <50 9.7 50
8-Nov-06 2670 1.7 <l <1 10.1 49
28-Feb-07 2200 1.5 <1 <l 9 49
27-Jun-07 2400 1.7 <1 <I 9.4 47
15-Aug-07 2700 1.5 <1 <l 9.5 45
10-Oct-07 2500 1.5 <1 <1 9.5 47
26-Mar-08 2800 1.6 <1 <1 9.2 43
25-Jun-08 2500 1.5 <1 <l 10.8 42
10-Sep-08 2200 1.4 <1 <l 8.83 39
15-Oct-08 2500 2 <2 <2 10.l 44
4-Mar-09 2200 1.2 <1 <1 10.2 37
24-Jun-09 1800 1.2 <1 <l 8.2 34
15-Sep-09 2000 1.1 <l <1 8.4 39
29-Dec-09 950 1.1 <1 <l 7.6 41
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-4 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwl) (uwl)
17-Feb-10 1700 1 <1 <1 6.6 48
10-Jun-10 2000 1.2 <1 <1 7.6 35
16-Aug-10 2100 1.3 <1 <1 7.3 36
l l-Oct-10 1700 1.3 <1 <1 7.1 38
23-Feb-1 l 1800 1.4 ND ND 7 41
1-Jun-11 1700 1.2 ND ND 7 35
17-Aug-11 1500 ND ND ND 6.6 40
16-Nov-1 l 1500 1 ND ND 7 39
23-Jan-12 1200 ND ND ND 7.1 38
6-Jun-12 1500 ND ND ND 7.1 43
4-Sep-12 1600 1.2 ND ND 7.1 39
3-Oct-12 1400 1 ND ND 7 38
ll-Feb-13 1460 1.12 ND ND 7.36 39
5-Jun-13 1330 ND ND ND 6.3 39.6
3-Sep-13 1380 ND ND ND 7.22 38.8
29-Oct-13 1360 5.3 ND ND 7.84 43.9
27-Jan-14 1260 3.88 ND ND 7.28 37.4
19-May-14 1220 5 ND ND 5.91 47.5
ll-Aug-14 1320 ND 7 ND 5.30 40.0
21-Oct-14 1130 ND ND ND 7.02 40.0
9-Mar-15 1350 1 ND ND 7.70 37.6
8-Jun-15 1280 ND ND ND 6.33 41.3
31-Aug-15 1220 ND ND ND 6.45 45.8
19-Oct-15 1190 ND ND ND 6.27 38.5
9-Mar-16 1190 ND ND ND 6.71 39.7
23-May-16 1780 1 ND ND 6.56 41.9
26-Jul-16 1380 ND ND ND 7.22 40.2
13-Oct-16 1430 ND ND ND 6.77 42.3
8-Mar-17 1290 ND ND ND 6.87 41.7
13-Jun-17 1290 ND ND ND 7.06 40.7
26-Jul-l 7 1290 ND ND ND 6.47 40.5
11-Oct-l 7 1290 ND ND ND 6.90 40.7
12-Mar-18 1160 ND ND ND 6.12 42.2
8-Jun-18 1050 ND ND ND 6.34 39.0
22-Aug-18 1030 ND ND ND 6.34 39.0
28-Nov-18 1140 ND ND ND 6.02 41.4
8-Mar-19 1050 ND ND ND 7.26 38.3
5-Jun-19 1070 ND ND ND 10.40 38.5
4-Sep-19 989 ND ND ND 6.32 39.8
Chloroform Carbon Chlorometbane Methylene Nitrate Chloride TW4-4 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2/J) (u21'1)
10-Dec-19 1140 ND ND ND 6.52 40.4
19-Feb-20 1100 ND ND ND 4.58 43.4
27-May-20 1140 ND ND ND 7.26 46.1
4-Sep-20 1110 ND ND ND 7.04 40.0
28-Oct-20 979 ND ND ND 6.77 38.6
23-Feb-21 1130 ND ND ND 6.75 39.8
9-Jun-21 1240 ND ND ND 9.02 39.4
24-Aug-21 1100 ND ND ND 4.00 39.6
l-Dec-21 950 ND ND ND 7.32 42.5
9-Mar-22 1010 ND ND ND 6.6 37.1
8-Jun-22 1110 ND ND ND 6.0 39.9
30-Aug-22 1040 ND ND ND 6.65 41.0
30-Nov-22 1030 ND ND ND 6.59 29.6
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Chloroform Carbon Chlorometbane Methylene Nitrate Chloride TW4-5 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwl) (uwl)
20-Dec-99 29.5
15-Mar-00 49.0
2-Sep-00 124
29-Nov-00 255
28-Mar-01 236
20-Jun-01 240
20-Sep-0l 240
7-Nov-01 260
26-Mar-02 260
22-May-02 300
12-Sep-02 330
24-Nov-02 260
28-Mar-03 240
23-Jun-03 290
12-Sep-03 200
8-Nov-03 240
29-Mar-04 210
22-Jun-04 200
17-Sep-04 150
17-Nov-04 180
16-Mar-05 120
25-May-05 113 NA NA NA 3.70 NA
31-Aug-05 82.0 <2.5 5.8 <2.5 6.00 NA
l-Dec-05 63.0 <2.5 2.5 <2.5 6.00 NA
9-Mar-06 66.0 <2.5 3.1 <2.5 6.00 52
14-Jun-06 51.0 <1 <2.5 <2.5 5.90 51
20-Jul-06 53.7 <1 <l <l 6.70 54
8-Nov-06 47.1 <1 <1 <1 2.90 55
28-Feb-07 33.0 <1 <1 <l 7.80 57
27-Jun-07 26.0 <1 <1 <l 7.00 45
15-Aug-07 9.2 <l <1 <l 7.70 38
l0-Oct-07 9.4 <1 <l <1 8.20 39
26-Mar-08 11.0 <l <1 <1 7.40 36
25-Jun-08 9.3 <1 <l <1 8.70 37
I0-Sep-08 11.0 <1 <1 <l 7.91 34
15-Oct-08 10.0 <1 <1 <1 9.30 37
4-Mar-09 12.0 <1 <1 <1 7.90 34
24-Jun-09 13.0 <1 <1 <1 7.50 37
15-Sep-09 12.0 <l <1 <l 8.30 48
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-5 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwl) (u2'})
22-Dec-09 8.5 <1 <l <l 7.50 41
25-Feb-10 13.0 <1 <l <1 6.80 43
9-Jun-10 12.0 <1 <l <1 7.10 28
11-Aug-10 12.0 <1 <l <1 7.00 38
13-Oct-10 I 1.0 <1 <1 <1 7.20 41
22-Feb-1 l 10.0 ND ND ND 7.00 34
26-May-l 1 9.0 ND ND ND 7.20 35
17-Aug-l l 10.0 ND ND ND 7.50 37
7-Dec-11 7.9 ND ND ND 6.00 30
18-Jan-12 7.6 ND ND ND 5.80 22
6-Jun-12 8.4 ND ND ND 8.00 39
11-Sep-12 12.0 ND ND ND 8. 10 37
3-Oct-12 8.0 ND ND ND 7.70 38
13-Feb-13 10.8 ND ND ND 8.24 34.3
13-Jun-l 3 11.2 ND ND ND 10.70 36.5
5-Sep-13 1 ).6 ND ND ND 7.79 39.1
13-Nov-l 3 14.4 ND ND ND 7.75 41.1
30-Jan-14 12.5 ND ND ND 9.16 40.5
22-May-14 13.4 ND ND ND 7.78 51.4
14-Aug-14 12.0 ND .ND ND 7.20 44
28-Oct-14 14.6 ND ND ND 8.31 45.1
12-Mar-15 13.8 ND ND ND 9.32 45.1
10-Jun-15 13.3 ND J.07 ND 7.08 47.3
3-Sep-15 12.9 ND ND ND 8.10 52.2
28-Oct-15 11.0 ND ND ND 8.03 43.6
17-Mar-16 11.0 ND ND ND 10.20 44.7
26-May-16 13.6 ND ND ND 8.98 45.9
25-Jul-16 10.8 ND ND ND 8.49 44.6
26-Oct-16 10.8 ND ND ND 8.32 47.8
15-Mar-17 12.6 ND ND ND 8.49 44.7
15-Jun-l 7 14.6 ND ND ND 8.52 47.3
2-Aug-17 14.6 ND ND ND 8.52 48.6
10-Oct-17 13.8 ND ND ND 8.57 42.5
15-Mar-18 15.2 ND ND ND 8.36 51.2
13-Jun-18 13.9 ND ND ND 9.24 47.4
30-Aug-18 15.4 ND ND ND 7.34 54.7
12-Dec-18 15.6 ND ND ND 7.67 49.8
16-Mar-19 14.1 ND ND ND 7.38 47.6
13-Jun-19 15.8 ND ND ND 7.62 49.3
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-5 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/1) (ug/1)
11-Sep-19 14.6 ND ND ND 7.02 46.1
14-Dec-19 15.7 ND ND ND 6.97 53.1
17-Mar-20 14.8 ND ND ND 7.10 48.3
l l-Jun-20 15.4 ND ND ND 7.83 49.5
18-Sep-20 14.8 ND ND ND 6.37 47.0
4-Nov-20 15.6 ND ND ND 6.19 50.2
18-Mar-21 12.9 ND ND ND 7.43 46.0
16-Jun-21 13.0 ND ND ND 8.11 50.8
22-Sep-21 11.2 ND ND ND 6.63 39.8
8-Dec-21 12.4 ND ND ND 6.71 51.3
23-Mar-22 11.0 ND ND ND 7.30 47.7
16-Jun-22 10.3 ND ND ND 7.10 40.7
14-Sep-22 13.2 ND ND ND 7.22 45.8
8-Dec-22 7.6 ND ND ND 7.54 51.8
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-6 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (_u2fl) (uwl)
6-Jun-00 0
2-Sep-00 0
28-Nov-00 0 ND
26-Mar-01 0 0.13
20-Jun-01 0 ND
20-Sep-0l 4 ND
7-Nov-01 1 ND
26-Mar-02 0 ND
21-May-02 0 ND
12-Sep-02 0 ND
24-Nov-02 0 ND
28-Mar-03 0 0.1
23-Jun-03 0 ND
12-Sep-03 0 ND
8-Nov-03 0 ND
29-Mar-04 0 ND
22-Jun-04 0 ND
17-Sep-04 0 ND
17-Nov-04 0 ND
16-Mar-05 0 0.2
25-May-05 2.5 NA NA NA 0.4 NA
31-Aug-05 10.0 <1 2.8 <1 0.8 NA
1-Dec-05 17.0 <1 1.3 <1 0.9 NA
9-Mar-06 31.0 <1 <1 <1 1.2 31
14-Jun-06 19.0 <1 <1 <1 1 30
20-Jul-06 11.0 <1 <1 <1 0.6 37
8-Nov-06 42.8 <1 <1 <1 1.4 65
28-Feb-07 46.0 <1 <1 <1 1.5 32
27-Jun-07 11.0 <1 <1 <1 0.6 38
15-Aug-07 18.0 <1 <1 <1 0.7 36
10-Oct-07 18.0 <1 <1 <1 0.8 38
26-Mar-08 52.0 <1 <1 <1 1.1 33
25-Jun-08 24.0 <1 <1 <1 0.9 35
10-Sep-08 39.0 <1 <1 <1 1.14 35
15-Oct-08 37.0 <1 <l <1 1.01 33
1 l-Mar-09 81.0 <1 <1 <1 2.2 35
24-Jun-09 120 <1 <l <1 2.7 37
15-Sep-09 280 <1 <1 <1 5.0 37
22-Dec-09 250 <1 <l <1 6.1 41
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-6 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwl) (u2'1)
25-Feb-10 1000 <1 <1 <1 1.6 45
IO-Jun-IO 590 <1 <1 <1 2.5 33
12-Aug-10 630 <1 <1 <1 3.9 31
13-Oct-10 420 <1 <1 <1 4.3 41
Lj-l'eb-11 4/ NU NU NU U."/ 4U
26-May-ll lU l'llJ NU NU u.:; 42
17-Aug-ll 16 ND ND ND 0.3 39
7-Dec-11 21 ND ND ND 0.8 36
18-Jan-12 38 ND ND ND 0.7 38
13-Jun-12 4.7 ND ND ND 0.2 40
ll-Sep-12 6.9 ND ND ND 0.1 21
3-Oct-12 9.0 ND ND ND 0.2 41
13-Feb-13 6.9 ND ND ND 0.154 40.4
13-Jun-13 4.9 ND ND ND 0.155 37.9
5-Sep-13 5.9 ND ND ND 0.157 40.6
13-Nov-13 5.5 ND ND ND 1.52 40.2
29-Jan-14 5.7 ND ND ND 0.184 40.6
22-May-14 10.3 ND ND ND 0.312 37
14-Aug-14 202 ND ND ND 4.2 40
24-Sep-14 260 ND ND ND NIA NIA
29-Oct-14 723 ND ND ND 6.92 41.1
18-Mar-15 1180 ND ND ND 5.25 41.2
ll-Jun-15 1040 ND ND ND 5.87 41.6
10-Sep-15 1040 ND ND ND 6.75 47.0
29-Oct-15 843 ND ND ND 5.61 40.2
22-Mar-16 834 ND ND ND 6.79 42.0
8-Jun-16 486 ND ND ND 3.19 44.1
4-Aug-16 433 ND ND ND 3.85 42.2
26-Oct-16 301 ND ND ND 3.74 46.1
16-Mar-17 288 ND ND ND 3.15 42.1
21-Jun-l 7 239 ND ND ND 2.42 42.6
3-Aug-17 129 ND ND ND 1.71 42.9
ll-Oct-17 121 ND ND ND 1.71 37.6
20-Mar-18 159 ND ND ND 1.96 43.1
14-Jun-18 74.9 ND ND ND 1.48 40.2
5-Sep-18 53.2 ND ND ND 1.18 44.0
12-Dec-18 37.0 ND ND ND 0.900 20.0
19-Mar-19 23.2 ND ND ND 0.755 41.0
13-Jun-19 15.8 ND ND ND 0.484 38.1
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-6 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/l) (ul!ll)
ll-Sep-19 15.8 ND ND ND 0.412 39.7
14-Dec-19 7.40 ND ND ND 0.244 45.7
17-Mar-20 6.93 ND ND ND 0.222 43.2
1 l-Jun-20 4.86 ND ND ND 0.205 42.4
18-Sep-20 3.63 ND ND ND 0.144 40.5
4-Nov-20 4.61 ND ND ND 0.197 42.9
18-Mar-21 3.78 ND ND ND 0.205 41.6
16-Jun-21 2.90 ND ND ND 0.215 43.8
15-Sep-21 3.71 ND ND ND 0.166 34.1
8-Dec-21 3.92 ND ND ND <0.100 44.8
22-Mar-22 3.10 ND ND ND 0.1 31.5
16-Jun-22 2.10 ND ND ND 0.2 43.l
14-Sep-22 3.90 ND ND ND 0.144 38.7
8-Dec-22 1.50 ND ND ND 0.134 40.7
Chloroform ©~~lr0'JJ Cbloromethane Methylene Nitrate Chloride 'fw.4,.6 u-g1ll ]:1gtrachJoride (ugll) Chloride (mg/1) (mg/I) (u1!11.) (uw))
0
I\)
0 0
.i,.
0 0
O') 0 0
(ug/L)
(X) 0 0
......
0 0 0
......
I\)
0 0
.i,.
0 0
24-Jul-98 +----1-----+----+----+----1------1-------1
19-Apr-01
14-Jan-04
1 0-Oct-06 1 • 1 I I I I I I
6-Jul-09 -1 't---1---.. I I I I I
1-Apr-12 V I I I I I I I I
~7-Dec-14 r \ t-· I I • I I ~
~2-Sep-17
18-Jun-20
15-Mar-23 _.__ ___ .,___ ___ J...._ __ ____Ji..,__ __ ----1. ___ ----1.. ___ __,_ ___ __,
-t
== .1:1,,
I 0)
0 :::r
0 ""I a 0 ""I 3
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C (I)
UI
Chloroform Carbon Chlorometbane Methylene Nitrate Chloride TW4-7 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u211) (m!/1)
29-Nov-99 256
15-Mar-00 616
2-Sep-00 698
29-Nov-00 684 1.99
28-Mar-01 747 2.46
20-Jun-01 1100 1, 2.65
20-Sep-01 1200 3.38
8-Nov-01 1100 2.5
26-Mar-02 1500 3.76
23-May-02 1600 3.89
12-Sep-02 1500 3.18
24-Nov-02 2300 4.6
28-Mar-03 1800 4.8
23-Jun-03 5200 7.6
12-Sep-03 3600 7.6
8-Nov-03 4500 7.1
29-Mar-04 2500 4.63
22-Jun-04 2900 4.83
17-Sep-04 3100 5.59
17-Nov-04 3800 6
16-Mar-05 3100 5.2
25-May-05 2700 NA NA NA 5.4 NA
31-Aug-05 3100 <10 <10 <10 5.2 NA
l-Dec-05 2500 <50 <50 <50 5.3 NA
9-Mar-06 1900 <50 <50 <50 1 48
14-Jun-06 2200 <50 <50 <50 4.5 47
20-Jul-06 2140 <50 <50 <50 4.7 51
8-Nov-06 2160 1.5 <l <l 4.6 49
28-Feb-07 1800 1.1 <1 <l 5 47
27-Jun-07 2600 1.5 <1 <1 5.1 45
14-Aug-07 2300 1.4 <1 <1 4.7 44
10-Oct-07 1900 1.2 <1 <1 4.7 45
26-Mar-08 2200 1.3 <1 <l 4.2 43
25-Jun-08 1800 1.3 <l <1 4.8 43
10-Sep-08 1600 1.4 <1 <1 4.16 35
15-Oct-08 1900 <2 <2 <2 4.01 40
11-Mar-09 1800 1.2 <1 <1 3.7 35
24-Jun-09 1400 <1 <l <1 3.8 37
15-Sep-09 1500 1.0 <1 <1 4.1 37
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-7 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uWI) (u2fl)
29-Dec-09 1300 <1 <1 <1 4.2 37
3-Mar-10 1200 <1 <1 <I 3.8 36
10-Jun-10 1100 <l <l <l 3.9 31
18-Aug-10 1500 1.1 <l <l 3.9 36
13-Oct-10 1100 1.1 <1 <l 4 38
23-Feb-ll 1300 ND ND ND 3.60 45
1-Jun-11 1200 ND ND ND 4.00 35
18-Aug-l 1 1200 ND ND ND 4.10 37
29-Nov-l 1 1000 ND ND ND 3.80 37
19-Jan-12 1000 ND ND ND 3.90 37
14-Jun-12 790 ND ND ND 4.00 41
13-Sep-12 870 ND ND ND 3.80 40
4-Oct-12 940 ND ND ND 3.80 41
13-Feb-13 1080 3.51 ND ND 3.90 37.7
18-Jun-13 953 ND ND ND 4.04 39.3
12-Sep-13 1040 ND ND ND 4.17 36.4
14-Nov-13 1050 ND ND ND 4.13 37.2
5-Feb-14 946 5.41 ND ND 4.24 38.2
23-May-14 847 4.78 ND ND 4.19 37.7
27-Aug-14 857 ND 1.5 ND 2.90 39
30-Oct-14 926 ND ND ND 3.68 40.2
18-Mar-15 942 ND ND ND 4.25 40.4
l 1-Jun-15 950 ND ND ND 2.62 42.1
10-Sep-15 897 ND ND ND 4.72 46.7
29-Oct-15 847 ND ND ND 3.49 40.6
22-Mar-16 834 ND ND ND 4.43 42.4
8-Jun-16 909 ND ND ND 3.75 44.l
4-Aug-16 1000 ND ND ND 4.21 42.3
27-Oct-16 886 ND ND ND 4.33 45.8
21-Mar-17 986 ND ND ND 3.87 40.5
21-Jun-17 968 ND ND ND 4.15 43.3
4-Aug-17 1070 ND ND ND 4.20 44.7
11-Oct-17 884 ND ND ND 4.35 43.7
21-Mar-18 721 ND ND ND 3.96 44.5
14-Jun-18 751 ND ND ND 4.45 41.5
5-Sep-18 781 ND ND ND 4.34 48.5
13-Dec-18 838 ND ND ND 3.98 42.8
20-Mar-19 736 ND ND ND 4.01 41.3
19-Jun-19 862 ND ND ND 4.19 43.0
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-7 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u!!IJ) (ug/1)
12-Sep-19 801 ND ND ND 3.76 39.7
18-Dec-l 9 546 ND ND ND 3.11 47.2
18-Mar-20 746 ND ND ND 3.75 42.l
12-Jun-20 864 ND ND ND 4.06 44.1
19-Sep-20 971 ND ND ND 3.87 41.5
11-Nov-20 967 ND ND ND 4.40 42.8
24-Mar-21 875 ND ND ND 4.25 46.2
17-Jun-21 819 ND ND ND 4.80 4 1.7
23-Sep-2J 801 ND ND ND 4.58 42.8
9-Dec-21 868 ND ND ND 3.02 42.9
24-Mar-22 776 0.5 2.1 ND 4.J 41.3
22-Jun-22 447 ND ND ND 3.9 42.5
15-Sep-22 887 ND ND ND 3.77 45.0
9-Dec-22 824 ND ND ND 4.06 44.8
(ug/L)
~ I\) w .i,. 01 CJ)
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0 0
24-Jul-98
19-Apr-01
14-Jan-04
1Q-OCt-Q6 I I • i.--. I I l l -4 :e .,::,.
I ....,
0 ::r
I I I 0 6-Jul-09 -i I 4Q I -,
0 -0 -,
3
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UI
~7-Dec-14
~2-Sep-17
18-Jun-20
15-Mar-23 _.__ ___ __._ ____ _.__ ___ ~----~---~---~
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-8 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2'1) (112'1)
29-Nov-99 0
15-Mar-00 21.8
2-Sep-00 102
29-Nov-00 107 ND
26-Mar-01 116 ND
20-Jun-01 180 ND
20-Sep-01 180 0.35
7-Nov-01 180 ND
26-Mar-02 190 0.62
22-May-02 210 0.77
12-Sep-02 300 ND
24-Nov-02 450 ND
28-Mar-03 320 0.8
23-Jun-03 420 ND
12-Sep-03 66.0 ND
8-Nov-03 21.0 0.1
29-Mar-04 24.0 0.65
22-Jun-04 110 0.52
17-Sep-04 120 ND
17-Nov-04 120 ND
16-Mar-05 10.0 ND
25-May-05 <1 NA NA NA 0.2 NA
31-Aug-05 1.1 <1 1.7 <1 <0.1 NA
30-Nov-05 <1 <l <l <1 <0.1 NA
9-Mar-06 1.3 <1 2.1 <l 0.3 39
14-Jun-06 1.0 <1 1.8 <1 <0.1 37
20-Jul-06 <l <l <1 <1 0.1 39
8-Nov-06 <l <l <1 <1 <0.1 40
28-Feb-07 2.5 <1 <l <1 0.7 39
27-Jun-07 2.5 <l <l <l 0.2 42
15-Aug-07 1.5 <1 <l <1 <0.1 42
10-Oct-07 3.5 <l <1 <l 0.5 43
26-Mar-08 <l <1 <1 <l 0.1 46
25-Jun-08 <1 <l <1 <l <0.05 45
10-Sep-08 <l <1 <l <1 <0.05 39
15-Oct-08 <l <1 <l <l <0.05 44
4-Mar-09 <l <l <l <l <0.1 42
24-Jun-09 <1 <1 <1 <l <0.1 44
15-Sep-09 <1 <1 <1 <1 <1 44
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-8 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2fl) (uwJ)
17-Dec-09 <l <1 <1 <1 <0.1 51
24-Feb-10 <1 <1 <1 <1 <0.1 57
9-Jun-10 <1 <1 <1 <1 <0.1 42
11-Aug-10 <1 <1 <1 <1 <0.1 45
5-Oct-10 <1 <1 <1 <1 <0.1 46
16-Feb-1 l ND ND ND ND ND 52
25-May-11 ND ND ND ND O.I 45
16-Aug-11 ND ND ND ND 0.1 46
7-Dec-11 ND ND ND ND 0.2 45
18-Jan-12 ND ND ND ND 0.3 45
31-May-12 ND ND ND ND 0.2 44
29-Aug-12 ND ND ND ND 0.1 48
3-Oct-12 ND ND ND ND ND 47
7-Feb-13 ND ND ND ND 0.411 46.6
30-May-13 ND ND ND ND ND 45.5
5-Sep-13 ND ND ND ND ND 47.5
7-Nov-13 ND ND ND ND ND 46.l
23-Jan-14 63.8 ND ND ND 0.166 48.5
6-Feb-14 100 ND ND ND 0.165 46.6
22-May-14 122 ND ND ND 0.538 53
27-Aug-14 107 ND ND ND 0.6 47
29-Oct-14 191 ND ND ND 0.914 46.7
12-Mar-15 961 ND ND ND 2.34 49.6
11-Jun-15 981 ND ND ND 1.88 53
10-Sep-15 747 ND ND ND 1.96 59.6
29-Oct-15 770 ND ND ND 2.20 52.0
17-Mar-16 634 ND ND ND 2.48 54.2
8-Jun-16 595 ND ND ND 2.14 58.7
4-Aug-16 522 ND ND ND 2.10 56.9
27-Oct-16 472 ND ND ND 2.16 60.1
21-Mar-17 359 ND ND ND 2.06 57.4
21-Jun-17 256 ND ND ND 1.97 58.8
4-Aug-17 223 ND ND ND 1.64 61.2
11-Oct-17 214 ND ND ND 1.97 52.2
21-Mar-18 220 ND ND ND 1.36 60.8
14-Jun-18 155 ND ND ND 1.31 53.8
5-Sep-18 137 ND ND ND 1.40 63.2
13-Dec-18 93.8 ND ND ND 0.123 65.8
19-Mar-19 103 ND ND ND 1.23 54.3
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-8 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u211) (u2fl)
19-Jun-19 96.0 ND ND ND 1.10 56.5
12-Sep-19 75.4 ND ND ND 0.999 52.0
18-Dec-l 9 84.4 ND ND ND 1.21 60.1
18-Mar-20 55.0 ND ND ND 1.04 53.8
12-Jun-20 53.8 ND ND ND 1.06 56.9
18-Sep-20 39.5 ND ND ND 0.894 52.6
11-Nov-20 51.3 ND ND ND 1.27 54.7
18-Mar-21 26.9 ND ND ND 1.00 52.8
16-Jun-21 22.3 ND ND ND 1.12 51.5
22-Sep-21 17.0 ND ND ND 0.665 40.8
8-Dec-21 17.2 ND ND ND 0.738 54.9
23-Mar-22 15.1 ND ND ND 0.8 50.8
16-Jun-22 10.9 ND ND ND 0.64 52.8
14-Sep-22 15.3 ND ND ND 0.718 52.5
15-Sep-22 16.3 ND ND ND 0.718 52.5
8-Dec-22 4.4 ND ND ND 0.654 50.8
UJ C1) :::, ca >
E ... 0 -0 ...
.2 .c 0
a)
I -::I" 3: I-
0 0 C\I ,-
0 0 0 ,-
0 0 t0
0 0 co
0 0 '<t"
0 0 ~
oi-unr-s ~
L~-das-cc
c~-Jd'v'-~
60-1nr-9
90-PO-0~
vo-uer-v~
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-9 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (_uwJ) (uwJ)
20-Dec-99 4.2
15-Mar-00 1.9
2-Sep-00 14.2
29-Nov-00 39.4 ND
27-Mar-01 43.6 ND
20-Jun-0l 59.0 0.15
20-Sep-0l 19.0 0.4
7-Nov-01 49.0 0.1
26-Mar-02 41.0 0.5
22-May-02 38.0 0.65
12-Sep-02 49.0 0.2
24-Nov-02 51.0 0.6
28-Mar-03 34.0 0.6
23-Jun-03 33.0 0.8
12-Sep-03 32.0 1.1
8-Nov-03 46.0 1.1
29-Mar-04 48.0 0.82
22-Jun-04 48.0 0.75
17-Sep-04 39.0 0.81
17-Nov-04 26.0 1.2
16-Mar-05 3.8 1.3
25-May-05 1.2 NA NA NA 1.3 NA
31-Aug-05 <l <1 2.9 <1 1.3 NA
1-Dec-05 <1 <1 <1 <1 1.3 NA
9-Mar-06 <1 <1 2.6 <1 1.5 38
14-Jun-06 <1 <1 2.7 <1 1.5 39
20-Jul-06 <1 <1 <1 <1 0.9 41
8-Nov-06 <1 <1 <l <1 0.7 44
28-Feb-07 <1 <1 <l <1 0.6 44
27-Jun-07 21 <1 <l <I 1.3 42
15-Aug-07 9.5 <I <l <I 1.8 38
10-Oct-07 8.7 <1 <l <1 2 40
26-Mar-08 1.3 <l <l <I 2.1 35
25-Jun-08 1.0 <1 <l <I 2.3 35
10-Sep-08 <1 <1 <l <l 2.79 28
15-Oct-08 <1 <I <1 <l 1.99 58
4-Mar-09 <1 <1 <1 <l 2.5 30
24-Jun-09 <1 <I <1 <l 2.3 30
15-Sep-09 <1 <l <l <l 2.5 30
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-9 {ug/1) Tetrachloride {ug/1) Chloride {mg/I) {mg/I) (ul!/I) (u~/1)
17-Dec-09 <l <l <1 <1 1.7 37
23-Feb-10 <l <l <1 <] l.7 47
9-Jun-10 <1 <1 <l <1 1.5 33
1 l-Aug-10 <1 <l <1 <l 1.2 40
6-Oct-10 <I <1 <l <1 1.8 34
17-Feb-1 l ND ND ND ND 1.3 41
25-May-11 ND ND ND ND 3.4 38
16-Aug-1 l ND ND ND ND 4 2 1
7-Dec-11 ND ND ND ND 2.3 38
18-Jan-12 ND ND ND ND 2.3 28
31-May-12 ND ND ND ND 4 23
30-Aug-12 ND ND ND ND 3.9 22
3-Oct-12 ND ND ND ND 3.8 21
7-Feb-13 ND ND ND ND 4.12 20.6
30-May-13 ND ND ND ND 4.49 21.4
5-Sep-13 ND ND ND ND 4.03 22.7
7-Nov-13 ND ND ND ND 4.87 23.6
29-Jan-14 ND ND ND ND 4.36 22
21 -May-14 6.9 ND ND ND 3.44 24
14-Aug-14 46.9 ND ND ND 2.7 27
29-Oct-14 101 ND ND ND 4.27 25
12-Mar-15 53.5 ND ND ND 3.28 29.5
11 -Jun-15 35.1 ND ND ND 1.83 35.3
3-Sep-15 48.2 ND ND ND 1.44 39.5
28-Oct-15 68.4 ND ND ND 2.89 29.2
17-Mar-16 74.3 ND ND ND 2.51 33.6
8-Jun-16 76.2 ND ND ND 2.16 35.1
3-Aug-16 76.8 ND ND ND 2.11 33.6
26-Oct-16 76 ND ND ND 2.24 37.4
16-Mar-17 113 ND ND ND 2.18 34.5
21-Jun-17 113 ND ND ND 1.92 35.9
3-Aug-l7 118 ND ND ND 1.90 37.0
l l-Oct-17 132 ND ND ND 2.18 32.3
21-Mar-18 159 ND ND ND 1.85 38.3
14-Jun-18 134 ND ND ND 1.85 35.7
5-Sep-18 94.2 ND ND ND J.04 43.4
13-Dec-18 109 ND ND ND 1.23 36.3
19-Mar-19 86.4 ND ND ND 1.09 36.9
19-Jun-19 68.1 ND ND ND 0.785 38.3
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-9 Tetrachloride Chloride (ug/1) (ug/J) (ug/1) (ug/J) (mg/I) (mg/I)
ll-Sep-19 66.0 ND ND ND 0.904 35.2
18-Dec-19 54.8 ND ND ND 0.744 40.l
18-Mar-20 48.9 ND ND ND 0.855 37.7
12-Jun-20 55.1 ND ND ND 0.990 39.5
18-Sep-20 45.0 ND ND ND 0.867 36.7
11-Nov-20 47.1 ND ND ND 1.11 37.2
18-Mar-21 39.0 ND ND ND 1.06 40.7
16-Jun-21 102.0 ND ND ND 1.00 37.4
22-Sep-21 30.0 ND ND ND 0.700 30.8
8-Dec-21 25.4 ND ND ND 0.798 36.9
23-Mar-22 16.5 ND ND ND 0.8 34.6
22-Jun-22 9.8 ND ND ND 0.62 41.7
14-Sep-22 10.8 ND ND ND 0.673 32.4
15-Sep-22 11.8 ND ND ND 0.673 32.4
8-Dec-22 6.7 ND ND ND 0.676 33.2
"' Cl) ~
ca >
E ... 0 -0 ...
.2 .c 0
a,
I o::t"
== I-
0 CX) .... 0 c.o .... 0 s::t" .... 0 C\J 0 0 ....
(7J6n)
0 CX) 0 c.o 0 C\I 0
oi-unr-B ~
L~-das-c2
G ~ -JdV-~
60-1nr-9
90-PO-0~
vo-uer-v~
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-10 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/1) (ug/1)
21-Jan-02 14
26-Mar-02 16 0.14
21-May-02 17 0.11
12-Sep-02 6 ND
24-Nov-02 14 ND
28-Mar-03 29 0.2
23-Jun-03 110 0.4
12-Sep-03 74 0.4
8-Nov-03 75 0.3
29-Mar-04 22 0.1
22-Jun-04 32 ND
17-Sep-04 63 0.46
17-Nov-04 120 0.4
16-Mar-05 140 1.6
25-May-05 62.4 NA NA NA 0.8 NA
31-Aug-05 110 <2.5 6.2 <2.5 1.1 NA
1-Dec-05 300 <2.5 <2.5 <2.5 3.3 NA
9-Mar-06 190 <5 <50 <50 2.4 50
14-Jun-06 300 <5 <50 <50 3.5 54
20-Jul-06 504 <5 <50 <50 6.8 61
8-Nov-06 452 <1 1.6 1 5.7 58
28-Feb-07 500 <1 <1 1 7.6 62
27-Jun-07 350 <1 <1 1 5.1 54
15-Aug-07 660 <I <1 1 7.3 59
10-Oct-07 470 <I <1 1 6.7 59
26-Mar-08 620 <I <1 1 7.3 55
25-Jun-08 720 <1 <1 1 9.91 58
10-Sep-08 680 <I <1 1 9.23 51
15-Oct-08 1200 <2 <2 2 10.5 61
11-Mar-09 1100 <I <1 1 11.6 64
24-Jun-09 1200 <1 <1 1 9.8 62
15-Sep-09 910 <1 <1 1 8.1 51
22-Dec-09 300 <1 <1 <1 3.5 51
3-Mar-10 460 <1 <1 <1 5 49
10-Jun-10 220 <1 <1 <1 1.6 42
12-Aug-10 100 <1 <1 <1 0.8 38
13-Oct-10 1100 <1 <1 <1 11 52
23-Feb-11 620 ND ND ND 9 62
l-Jun-11 280 ND ND ND 3.3 42
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-10 (ug/1) Tetrachloride {ug/1) Chloride {mg/I) (mg/I) (ug/1) (ug/1)
17-Aug-ll 180 ND ND ND 1.9 41
16-Nov-11 110 ND ND ND 1.1 45
19-Jan-12 76 ND ND ND 0.9 40
13-Jun-12 79 ND ND ND 0.8 46
12-Sep-12 130 ND ND ND 1.0 44
3-Oct-12 140 ND ND ND 1.6 45
13-Feb-13 154 ND ND ND 1.2 49.1
l 3-Jun-13 486 ND ND ND 5.6 51.5
12-Sep-13 1160 ND ND ND 13.0 67.9
14-Nov-13 1380 ND ND ND 16.0 70.9
5-Feb-14 1260 5.16 ND ND 16.8 73
23-May-14 1110 ND ND ND 13.9 77.3
27-Aug-14 1060 ND 1.5 ND 9.8 74
30-Oct-14 1220 ND ND ND 13.2 75.2
18-Mar-15 1210 ND ND ND 15.0 78.6
ll-Jun-15 1240 ND ND ND I 1.4 75
10-Sep-15 1280 ND ND ND 14.0 89.5
29-Oct-15 1350 ND ND ND 13 .5 79.9
22-Mar-16 1430 ND ND ND 17 .3 84.1
8-Jun-l 6 1510 ND ND ND 14.9 89.5
4-Aug-16 1500 ND ND ND 14.9 85.3
27-Oct-16 1290 NJJ ND ND 14.8 84.4
21-Mar-17 1260 ND ND ND 13.0 74.6
21-Jun-l 7 1140 ND ND ND 13.0 73.1
4-Aug-17 1320 ND ND ND 13.4 77.0
11-Oct-l 7 1150 ND ND ND 12.9 70.0
21 -Mar-18 1240 ND ND ND 11.l 72.7
14-Jun-18 914 ND ND ND 11.2 64.5
5-Sep-18 911 ND ND ND 10.1 73.5
13-Dec-18 1070 ND ND ND 10.6 63.5
20-Mar-19 869 ND ND ND 9.34 59.3
19-Jun-19 799 ND ND ND 8.86 58.7
12-Sep-19 734 NJJ ND ND 7.79 55.8
18-Dec-19 768 ND ND ND 6.89 62.0
18-Mar-20 798 ND ND ND 7.83 53.5
12-Jun-20 928 ND ND ND 8.13 60.1
19-Sep-20 854 ND ND ND 7.34 53.9
ll-Nov-20 903 ND ND ND 8.69 58.6
24-Mar-21 718 ND ND ND 7.20 58.1
Chloroform Carbon Chloromethane Methylene Nitrate Chloride
I TW4-10 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2fl) (u2fl)
17-Jun-21 609 ND ND ND 7.75 48.7
23-Sep-21 545 ND ND ND 6.35 50.6
9-Dec-21 675 ND ND ND 5.47 51.9
24-Mar-22 471 ND l ND 5.1 49.0
22-Jun-22 342 ND ND ND 4.6 46.0
15-Sep-22 563 ND ND ND 5.57 52.0
16-Sep-22 564 ND ND ND 5.57 52.0
9-Dec-22 499 ND ND ND 4.76 43.4
u,
G)
j -; >
E 1-0 -0 1-
.2 .c 0
0 -I ~ 3': I-
__j
--I
~--~--~---~----.------,.-----.-------.----~ 8C::-JBIIIJ-S~
oc::-unr-s~
L~-das-c::c::
v~-oaa-a
C::kJdV-~
60-1nr-9
-90-PO-0~
vo-uer-v~
1--------------+------+------+------t----1-86-1nr-vc::
0 0 co -.r-
0 0 "<t" -.r-
0 0 C\J -.r-
0 0 0 -.r-
0 0 co
0 0 co
(1,Sn)
0 0 "<t"
0 0 C\J
0
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-11 Tetrachloride (ug/1) (u2'1) (ug/1) Chloride ( ug/1) (mg/I) (mg/I)
21-Jan-02 4700
26-Mar-02 4900 9.6
22-May-02 5200 9.07
12-Sep-02 6200 8.84
24-Nov-02 5800 9.7
28-Mar-03 5100 9.7
23-Jun-03 5700 9.4
12-Sep-03 4600 9.9
8-Nov-03 5200 9.3
29-Mar-04 5300 9.07
22-Jun-04 5700 8.74
17-Sep-04 4800 8.75
17-Nov-04 5800 9.7
16-Mar-05 4400 8.7
25-May-05 3590 NA NA NA 10.3 NA
31-Aug-05 4400 <10 <10 <10 9.4 NA
l-Dec-05 4400 <100 <100 <100 9.4 NA
9-Mar-06 4400 <50 <50 <50 9.2 56
14-Jun-06 4300 <50 <50 <50 10 56
20-Jul-06 4080 <50 <50 <50 10 55
8-Nov-06 3660 1.7 2.7 1.3 10 55
28-Feb-07 3500 1.3 <1 1.6 10.1 54
27-Jun-07 3800 1.6 <1 1.1 10.6 53
15-Aug-07 4500 1.7 <l 1.1 10.2 53
10-Oct-07 4400 1.6 <l 1.2 9.8 53
26-Mar-08 340 <1 <1 <1 7.7 63
25-Jun-08 640 <1 <1 <1 7.28 46
10-Sep-08 900 <1 <1 <1 7.93 42
15-Oct-08 1000 <2 <2 <2 9.46 47
11-Mar-09 1100 <1 <1 <1 7.3 49
24-Jun-09 980 <1 <1 <1 6.8 44
15-Sep-09 1000 <1 <1 <1 7 49
29-Dec-09 860 <l <1 <1 6.6 46
3-Mar-10 820 <l <1 <1 6.8 42
10-Jun-10 820 <1 <l <1 6.9 40
12-Aug-10 800 <l <1 <1 6.7 43
13-Oct-10 720 <1 <l <1 6.4 49
23-Feb-11 1000 ND ND ND 6.5 46
1-Jun-11 930 ND ND ND 7.3 49
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-11 Tetrachloride (ug/1) (ue/1) (ug/1) Chloride ( ug/1) (mg/I) (mg/I)
17-Aug-l l 820 ND ND ND 7.1 48
16-Nov-l 1 1500 ND ND ND 7.1 46
24-Jan-12 610 ND ND ND 6.8 43
13-Jun-l 2 660 ND ND ND 6.7 52
13-Sep-12 740 ND ND ND 3 49
4-Oct-12 730 ND ND ND 7 50
13-Feb-13 867 3.23 ND ND 6.83 47.3
18-Jun-13 788 ND ND ND 7.42 49.7
l 2-Sep-13 865 ND ND ND 7.8 46.6
13-Nov-13 874 ND ND ND 8.01 46.7
5-Feb-14 785 5.19 ND ND 8.47 48.5
23-May-14 751 ND ND ND 6.92 51.6
27-Aug-14 719 ND 1.2 ND 5.4 48
29-Oct-14 803 ND ND ND 7.33 56.4
9-Mar-15 2450 1.24 ND ND 8.72 49.8
8-Jun-15 2710 ND ND ND 8.48 62.2
31-Aug-15 1120 ND 1.62 ND 9.61 73.1
19-Oct-15 2730 ND ND ND 7.5 55.3
9-Mar-16 2660 J.2 ND ND 7.13 55.5
23-May-16 3340 2.19 ND ND 7.81 56.4
25-Jul-16 3200 ND ND ND 8.83 55.3
12-Oct-16 3180 1.58 ND ND 8.92 57.2
8-Mar-17 3310 1.71 ND ND 8.12 49.8
13-Jun-17 3370 1.83 ND ND 7.92 51.4
26-Jul-17 3290 1.81 ND ND 7.78 51.0
1 l-Oct-17 2880 1.48 ND ND 7.79 49.7
12-Mar-18 3090 1.82 ND ND 7.89 54.0
8-Jun-18 2800 1.34 ND ND 7.51 52.6
22-Aug-18 3050 1.47 ND ND 7.15 53.3
28-Nov-18 2930 1.33 ND ND 6.85 45.4
8-Mar-19 2820 1.48 ND ND 7.50 46.8
5-Jun-19 2970 1.52 1.40 ND 8.30 45.3
4-Sep-19 2790 ND ND ND 7.15 48.8
10-Dec-19 3250 ND ND ND 7.14 49.0
19-Feb-20 2990 ND ND ND 7.07 51.9
27-May-20 2810 1.37 ND ND 7.56 48.6
4-Sep-20 3070 1.37 ND ND 7.59 46.3
28-Oct-20 2670 ND 3.86 ND 7.19 43.3
23-Feb-21 2750 ND 3.86 ND 7.21 49.5
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-11 Tetrachloride (ug/1) (u2')) (ug/1) Chloride (ug/1) (mg/I) (mg/I)
9-Jun-21 3320 ND ND ND 8.17 37.7
24-Aug-21 2600 ND ND ND 5.78 40.2
1-Dec-21 2850 ND ND ND 7.44 48.4
9-Mar-22 2780 ND ND ND 7.4 41.5
8-Jun-22 2550 1.0 2.7 ND 5.9 44.5
30-Aug-22 3020 ND ND ND 6.90 42.4
31-Aug-22 3021 ND ND ND 6.90 42.4
30-Nov-22 2900 ND ND ND 7.05 36.6
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-12 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ul!ll) (ul!ll)
12-Sep-02 2 2.54
24-Nov-02 0 2.2
28-Mar-03 0 1.9
23-Jun-03 0 1.8
12-Sep-03 0 1.8
9-Nov-03 0 1.6
29-Mar-04 0 1.58
22-Jun-04 0 1.4
17-Sep-04 0 1.24
17-Nov-04 0 1.5
16-Mar-05 0 1.4
25-May-05 <1 NA NA NA 1.6 NA
31-Aug-05 <1 <1 5.8 <l 1.5 NA
l-Dec-05 <l <l 1.9 <2 1.4 NA
9-Mar-06 <l <l 2.6 <l 1.3 19
14-Jun-06 <l <l 1.4 <l 1.4 16
20-Jul-06 <l <l <1 <1 1.4 16
8-Nov-06 <1 <l <1 <1 1.4 16
28-Feb-07 <1 <1 <l <1 1.5 16
27-Jun-07 <1 <1 <1 <1 1,5 18
15-Aug-07 <1 <1 <1 <1 1.4 29
10-Oct-07 <l <1 <1 <1 1.4 16
26-Mar-08 <1 <1 <1 <1 1.6 16
25-Jun-08 <1 <1 <1 <1 2.69 19
10-Sep-08 <1 <1 <1 <1 2.65 18
15-Oct-08 <l <1 <1 <1 2.47 22
4-Mar-09 <l <l <1 <1 2.4 23
24-Jun-09 <l <1 <1 <1 3.8 22
15-Sep-09 <l <1 <1 <1 5.1 22
16-Dec-09 <1 <1 <1 <1 3.6 23
23-Feb-10 <1 <1 <l <l 4 22
8-Jun-10 <1 <1 <l <l 11 29
10-Aug-10 <l <1 <l <l 9 35
5-Oct-10 <l <1 <l <1 8 31
15-Feb-l l ND ND ND ND 6.5 31
25.-May-ll ND ND ND ND T 32
16-Aug-ll ND ND ND ND 6.8 31
15-Nov-ll ND ND ND ND 8 30
17-Jan-12 ND ND ND ND 7.7 28
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-12 {ug/1) Tetrachloride {ug/1) Chloride (mg/I) {mg/I) (u~/1) (ug/1)
31-May-12 ND ND ND ND 10 34
29-Aug-12 ND ND ND ND 13 39
3-Oct-12 ND ND ND ND 13 39
7-Feb-13 ND ND ND ND 12.6 36.7
29-May-13 ND ND ND ND 14.2 38.6
29-Aug-13 ND ND ND ND 17.4 4 1.7
6-Nov-13 ND ND ND ND 16.4 41.4
22-Jan-14 ND ND ND ND 18.4 41.6
21-May-14 ND ND ND ND 17 40.2
27-Aug-14 ND ND ND ND 13 47
23-Oct-14 ND ND ND ND 16.1 50.2
l 1-Mar-15 ND ND ND ND 19.2 50.6
10-Jun-15 ND ND ND ND 18.8 56
2-Sep-15 ND ND ND ND 16.4 60.2
21-Oct-15 ND ND ND ND 18 51.0
15-Mar-16 ND ND ND ND 34.8 56.2
25-May-16 ND ND ND ND 30.7 66.4
27~Jul-16 ND ND ND ND 37.7 67.5
19-Oct-16 ND ND ND ND 25.8 72.6
14-Mar-l 7 ND ND ND ND 25.9 62.6
14-Jun-17 1.25 ND ND ND 29.9 67.2
2-Aug-17 1.20 ND ND ND 25.1 65.3
10-Oct-17 ND ND ND ND 26.9 56.2
14-Mar-18 ND ND ND ND 19.8 59.5
12-Jun-18 ND ND ND ND 18.4 53.6
29-Aug-18 ND ND ND ND 13.6 59.9
30-Nov-18 ND ND ND ND 10.4 56.1
16-Mar-19 ND ND ND ND 10.1 50.8
13-Jun-19 ND ND ND ND 8.31 55.3
I 1-Sep-19 ND ND ND ND 8.88 52.6
14-Dec-19 ND ND ND ND 8.04 58.0
17-Mar-20 ND ND ND ND 6.39 53.0
I0-Jun-20 ND ND ND ND 4.95 51.7
17-Sep-20 ND ND ND ND 2.34 50.3
4-Nov-20 ND ND ND ND 5.91 48.0
17-Mar-21 ND ND ND ND 3.10 52.0
15-Jun-21 ND ND ND ND 2.39 51.8
15-Sep-21 ND ND ND ND 1.95 36.1
7-Dec-21 ND ND ND ND 1.46 49.8
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-12 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (02'I) (02'1)
15-Mar-22 ND ND ND ND 8.4 25.8
15-Jun-22 ND ND ND ND 16.0 53.3
13-Sep-22 ND ND ND ND 13.80 57.9
7-Dec-22 ND ND ND ND 4.68 49.2
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-13 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (ue/1)
12-Sep-02 ND ND
24-Nov-02 ND ND
28-Mar-03 ND 0.20
23-Jun-03 ND 0.20
12-Sep-03 ND ND
9-Nov-03 ND 0.90
29-Mar-04 ND 0.12
22-Jun-04 ND 0.17
17-Sep-04 ND 4.43
17-Nov-04 ND 4.70
16-Mar-05 ND 4.20
25-May-05 <l NA NA NA 4.30 NA
31-Aug-05 <l <1 3.1 <l 4.60 NA
l-Dec-05 <l <1 <l <l 4.30 NA
9-Mar-06 <l <1 1.7 <l 4.20 67.0
14-Jun-06 <1 <1 1.4 <1 4.90 66.0
20-Jul-06 <1 <1 <l <l 4.30 65.0
8-Nov-06 <1 <l <l <l 0.80 33.0
28-Feb-07 <1 <l <l <1 4.00 59.0
27-Jun-07 <1 <1 <l <1 4.60 59.0
15-Aug-07 <1 <1 <l <l 4.40 58.0
10-Oct-07 <1 <l <1 <l 4.10 58.0
26-Mar-08 <1 <1 <l <l 3.80 54.0
25-Jun-08 <1 <1 <1 <1 4.24 58.0
10-Sep-08 <1 <1 <1 <l 4.26 50.0
15-Oct-08 <1 <l <1 <l 4.63 58.0
4-Mar-09 <1 <1 <l <l 3.70 58.0
24-Jun-09 <1 <1 <l <l 1.20 57.0
15-Sep-09 <l <l <I <1 4.70 63 .0
16-Dec-09 <l <1 <1 <l 4.10 60.0
24-Feb-10 <l <l <1 <l 4.30 53.0
8-Jun-10 <l <1 <1 <1 5.20 52.0
10-Aug-10 <1 <l <1 <1 5.60 55.0
5-Oct-10 <l <l <1 <1 5.80 55.0
15-Feb-ll ND ND ND ND 5.50 60.0
25-May-11 ND ND ND ND 5.40 56.0
16-Aug-ll ND ND ND ND 5.20 60.0
15-Nov-11 ND ND ND ND 5.90 54.0
17-Jan-12 ND ND ND ND 5.50 55.0
31-May-12 ND ND ND ND 6.00 59.0
29-Aug-12 ND ND ND ND 6.20 60.0
3-0ct-12 ND ND ND ND 5.90 60.0
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-13 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (_ue/1} (ue/1)
7-Feb-13 ND ND ND ND 6.31 59.3
29-May-13 ND ND ND ND 6.84 56
29-Aug-13 ND ND ND ND 7.16 63.5
6-Nov-13 ND ND ND ND 6.48 58.5
22-Jan-14 ND ND ND ND 7.09 63.1
21-May-14 ND ND ND ND 5.99 56.1
13-Aug-14 ND ND ND ND 4.80 62
23-Oct-14 ND ND ND ND 6.28 66.1
1 l-Mar-15 ND ND ND ND 7.09 66.4
10-Jun-15 ND ND ND ND 6.32 70.3
2-Sep-15 ND ND ND ND 5.70 76.5
21-Oct-15 ND ND ND ND 5.78 65.5
16-Mar-16 ND ND ND ND 7.97 69.4
25-May-16 ND ND ND ND 5.87 71.8
28-Jul-16 ND ND ND ND 6.14 69.3
19-Oct-16 ND ND ND ND 6.20 70.9
15-Mar-17 ND ND ND ND 6.05 66.0
15-Jun-17 ND ND ND ND 6.49 70.4
2-Aug-17 ND ND ND ND 6.15 70.5
10-Oct-17 ND ND ND ND 6.17 60.9
14-Mar-18 ND ND ND ND 5.76 71.0
12-Jun-18 ND ND ND ND 6.24 65.0
29-Aug-18 ND ND ND ND 5.13 73.7
30-Nov-18 ND ND ND ND 5.29 64.5
16-Mar-19 ND ND ND ND 5.74 61.6
13-Jun-19 ND ND ND ND 6.56 65.4
13-Sep-19 ND ND ND ND 5.19 65.3
14-Dec-19 ND ND ND ND 5.17 68.7
17-Mar-20 ND ND ND ND 5.50 63.9
11-Jun-20 ND ND ND ND 5.96 62.7
17-Sep-20 ND ND ND ND 5.25 60.2
4-Nov-20 ND ND ND ND 4.92 60.6
17-Mar-21 ND ND ND ND 5.57 67.3
15-Jun-21 ND ND ND ND 2.88 57.7
15-Sep-21 ND ND ND ND 4.80 54.2
7-Dec-21 ND ND ND ND 5.06 61.0
16-Mar-22 ND ND ND ND 4.8 59.2
15-Jun-22 ND ND ND ND 4.5 62.6
13-Sep-22 ND ND ND ND 4.37 62.4
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-13 (ug/J) Tetrachloride {ug/1) Chloride (mg/I) (m g/I) (u2/I) (m!/1)
7-Dec-22 ND ND ND ND 4.87 56.9
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-14 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uldl) (uw))
8-Nov-06 <1 <1 <] <l 2.40 37.0
28-Feb-07 <1 <l <1 <l 2.30 38.0
27-Jun-07 <1 <1 <1 <l 1.40 38.0
15-Aug-07 <1 <1 <1 <1 1.10 36.0
J0-Oct-07 <1 <l <1 <1 0.80 36.0
26-Mar-08 <1 <1 <1 <1 0.04 57.0
25-Jun-08 <1 <1 <1 <1 1.56 35.0
10-Sep-08 <1 <1 <I <1 1.34 34.0
15-Oct-08 <] <l <l <1 0.76 40.0
4-Mar-09 <1 <l <l <1 1.60 35.0
24-Jun-09 <l <] <1 <1 1.40 36.0
15-Sep-09 <l <l <1 <1 I.50 38.0
16-Dec-09 <1 <1 <l <] 1.40 34.0
3-Mar-10 <l <1 <l <l 2.50 33.0
8-Jun-10 <I <l <l <1 2.90 49.0
IO-Aug-IO <1 <] <1 <l 2.80 35.0
6-Oct-10 <l <1 <] <1 2.90 29.0
15-Feb-1 l ND ND ND ND 1.80 25.0
16-Aug-1 l ND ND ND ND 2.60 33.0
15-Nov-11 ND ND ND ND 1.70 15.0
17-Jan-1 2 ND ND ND ND 1.90 20.0
31-May-12 ND ND ND ND 3.30 35.0
29-Aug-12 ND ND ND ND 3.90 37.0
3-Oct-12 ND ND ND ND 4.20 37.0
7-Feb-13 ND ND ND ND 4.63 35.2
30-May-13 ND ND ND ND 4.37 38.6
29-Aug-13 ND ND ND ND 4.51 37.6
6-Nov-13 ND ND ND ND 4.81 36.5
22-Jan-14 ND ND ND ND 5.92 35.5
21-May-14 ND ND ND ND 4.87 32.5
13-Aug-l4 ND ND ND ND 4.10 38.0
___; 23-Oct-14 1.68 ND ND ND 5.22 38.9
12-Mar-15 1.71 ND ND ND 5.22 40.1
10-Jun-15 1.82 ND ND ND 3.55 41.8
3-Sep-15 ND ND ND ND 2.77 42.4
21-Oct-15 1.46 ND ND ND 2.45 40.6
16-Mar-16 4.49 ND ND 2.18 2.94 42.4
26-May-16 6.15 ND ND 3.18 2.45 43.6
28-Jul-16 5.00 ND ND 1.80 2.88 42.4
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-14 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2'1) (u2'1)
20-Oct-16 7.02 ND ND 1.59 2.86 45.6
15-Mar-17 6.45 ND ND ND 4.36 45.4
15-Jun-17 6.85 ND ND ND 5.12 46.9
2-Aug-17 6.14 ND ND ND 4.84 46.4
10-Oct-17 6.13 ND ND ND 4.73 42.5
15-Mar-18 5.80 ND ND ND 5.67 51.5
13-Jun-18 5.12 ND ND ND 6.36 46.9
30-Aug-18 4.76 ND ND ND 5.34 54.l
12-Dec-18 4.41 ND ND ND 5.85 48.7
16-Mar-19 4.08 ND ND ND 6.16 48.7
13-Jun-19 4.18 ND ND ND 5.86 48.3
11-Sep-19 6.08 ND ND ND 4.77 45.4
14-Dec-19 3.83 ND ND ND 4.76 49.4
17-Mar-20 2.98 ND ND ND 6.17 48.4
11-Jun-20 2.87 ND ND ND 6.57 47.6
18-Sep-20 2.41 ND ND ND 5.57 45.1
4-Nov-20 2.69 ND ND ND 5.81 49.7
18-Mar-21 1.77 ND ND ND 5.56 48.2
16-Jun-21 ND ND ND ND 7.02 49.5
15-Sep-21 ND ND ND ND 5.56 34.4
8-Dec-21 ND ND ND ND 5.70 49.0
16-Mar-22 ND ND ND ND 5.9 42.0
16-Jun-22 1.0 ND ND ND 5.3 48.4
14-Sep-22 1.1 ND ND ND 4.78 42.2
8-Dec-22 ND ND ND ND 6.20 43.5
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-26 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2'1) (u2'1.)
12-Sep-02 3 ND
24-Nov-02 0 ND
28-Mar-03 0 0.1
23-Jun-03 7800 14.5
15-Aug-03 7400 16.8
12-Sep-03 2500 2.7
25-Sep-03 2600 2.5
29-Oct-03 3100 3.1
8-Nov-03 3000 2.8
29-Mar-04 NA NA
22-Jun-04 NA NA
17-Sep-04 1400 0.53
17-Nov-04 300 0.2
16-Mar-05 310 0.3
30-Mar-05 230 0.2
25-May-05 442 NA NA NA 0.2 NA
31-Aug-05 960 <5 5.4 <5 0.2 NA
1-Dec-05 1000 <50 <50 <50 0.3 NA
9-Mar-06 1100 <50 <50 <50 0.2 52
14-Jun-06 830 <50 <50 <50 0.2 52
20-Jul-06 2170 <50 <50 <50 1.4 65
8-Nov-06 282 <1 <1 2.8 0.3 54
28-Feb-07 570 <l <1 5.5 0.5 56
27-Jun-07 300 <1 <l 13 0.4 49
15-Aug-07 1400 <l <l 36 1 57
10-Oct-07 2000 <1 <l 14 0.6 57
26-Mar-08 930 <1 <1 40 0.1 49
25-Jun-08 1300 <1 <1 53 0.56 57
10-Sep-08 630 <1 <1 24 0.24 44
15-Oct-08 1700 <l <1 100 0.65 64
4-Mar-09 950 <l <l 51 0.4 49
24-Jun-09 410 <1 <1 12 0.2 48
15-Sep-09 850 <I <1 30 0.1 46
14-Dec-09 1100 <1 <1 40 2.3 60
17-Feb-10 780 <1 <1 19 0.2 57
9-Jun-10 1900 <1 <1 28 1.1 58
16-Aug-10 2200 <I <1 21 0.6 49
11-Oct'-10 970 <l <1 6.5 0.7 65
23-Feb-1 l 450 ND ND 3.6 0.5 57
Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-26 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2/l). (u1!11)
31-May-J 1 1800 ND ND 1.3 0.4 88
17-Aug-11 720 ND ND 7.2 0.9 58
5-Dec-11 1800 ND ND 2.9 2 69
7-Feb-12 2400 ND ND 16 1.7 98
6-Jun-12 3000 ND ND 21 2.5 73
4-Sep-12 3100 ND ND 31 2.6 73
4-Oct-12 1200 ND ND 4 1.8 68
1 I-Feb-13 2120 ND ND 9.34 2.27 81.9
5-Jun-13 4030 ND ND 52.4 2.11 77.9
3-Sep-13 2940 ND ND 33.2 1.18 60.5
29-Oct-13 1410 ND ND 4.03 1.38 72.3
27-Jan-14 1400 ND ND 13.8 0.549 59.4
19-May-14 1960 ND ND 15.4 0.928 53.4
1 l-Aug-14 2120 ND 8.7 26 0.7 59
21-Oct-1 4 2090 ND ND 23.2 0.934 60.l
9-Mar-15 1980 ND ND 27.4 0.732 56.5
8-Jun-15 1980 ND ND 1 l.2 0.419 62
31-Aug-15 2350 ND 4.05 11.6 0.684 69.6
19-Oct-15 2680 ND 1.32 8.28 0.991 62.6
9-Mar-16 2650 ND 1.32 4.66 1.45 68.3
23-May-16 2220 ND ND 4.57 1.12 66.2
25-Jul-16 3190 ND ND 7.81 1.57 66.4
12-Oct-16 2510 ND ND 4.3] 1.18 66.2
8-Mar-17 1290 ND ND 7.65 0.768 58.4
13-Jun-17 2450 ND ND 7.59 0.922 64.3
26-Jul-17 1230 ND ND 5.26 1.56 61.4
11-Oct-17 2570 ND ND 7.83 1.18 62.2
12-Mar-18 1210 ND ND 2.14 1.57 60.3
8-Jun-18 1870 ND ND 9.19 0.901 58.7
22-Aug-l 8 1680 ND ND ND 2.80 91.4
28-Nov-]8 1480 ND ND ND 1.96 85.5
8-Mar-19 1110 ND ND 2.20 1.85 69.9
5-Jun-19 1280 ND ND 1.19 2.83 80.7
4-Sep-19 1360 ND ND l.93 3.08 76.2
10-Dec-19 1390 ND ND 1.78 0.977 83.2
19-Feb-20 1100 ND ND ND 1.17 88.9
27-May-20 1610 ND ND 3.92 2.93 77.6
4-Sep-20 1130 ND ND 2.57 0.42 70.0
28-Oct-20 866 ND ND ND 3.62 67.4
Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-26 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2/I) (u2'1.)
23-Feb-21 3060 ND ND 3.46 0.349 59.5
9-Jun-21 998 ND ND ND 0.810 48.6
24-Aug-21 1580 ND ND ND 0.671 46.6
1-Dec-21 826 ND 5.90 ND 0.518 54.7
9-Mar-22 1030 ND ND ND 0.3 50.2
8-Jun-22 611 ND ND ND 0.22 63.4
30-Aug-22 612 ND ND ND 0.662 57.0
30-Nov-22 1040 ND ND ND 0.337 52.1
,----.----~--~-----,---~---,.....---..----~--~ 8C::-JBV\l-9 ~
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(7J6n)
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-16 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1.) (ue/1)
12-Sep-02 140 ND
24-Nov-02 200 ND
28-Mar-03 260 ND
23-Jun-03 370 ND
12-Sep-03 350 ND
8-Nov-03 400 ND
29-Mar-04 430 ND
22-Jun-04 530 ND
17-Sep-04 400 ND
17-Nov-04 350 ND
16-Mar-05 240 ND
25-May-05 212 NA NA NA <0.1 NA
31-Aug-05 85 <1 3.2 43 <0.1 NA
1-Dec-05 14 <2.5 2.6 5.9 1.4 NA
9-Mar-06 39 <1 1.1 21 3 60
14-Jun-06 13 <1 2.4 8.9 1.9 55
20-Jul-06 5.2 <1 <1 2.7 2.7 60
8-Nov-06 13.6 <1 <1 9.2 5.6 62
28-Feb-07 8.7 <1 <1 6.5 12.3 79
27-Jun-07 2.6 <1 <1 1.8 9.9 75
15-Aug-07 7.1 <1 <1 5.1 5.4 66
10-Oct-07 1.4 <1 <1 <1 4.4 69
26-Mar-08 11 <1 <1 26 ND 52
25-Jun-08 <1 <1 <1 <1 1.46 58
10-Sep-08 10 <1 <1 14 10.5 71
15-Oct-08 3.9 <1 <1 6.6 9.82 89
4-Mar-09 <1 <1 <1 <1 9.6 78
24-Jun-09 <1 <I <I <l 8.9 76
15-Sep-09 <1 <I <1 <l 8.8 79
17-Dec-09 <1 <1 <1 <l 5.2 76
24-Feb-10 <l <I <1 <l 4.2 77
9-Jun-10 2.1 <l <1 <l 4.7 64
24-Aug-10 4.3 <I <1 <l 4.6 72
6-Oct-10 3 <1 <1 <1 3.3 72
22-Feb-l 1 15 ND ND ND 7 86
26-May-11 16 ND ND ND 5 81
17-Aug-ll 9.2 ND ND ND 1.7 63
16-Nov-ll ND ND ND 1.4 0.4 38
18-Jan-12 ND ND ND 1.7 0.1 48
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-16 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uw.l) (uw.l)
31-May-12 ND ND ND ND ND 53
30-Aug-12 ND ND ND ND ND 59
3-Oct-12 ND ND ND 3 ND 53
7-Feb-13 ND ND ND 3 ND 58.1
30-May-13 ND ND ND 4.21 ND 49.8
5-Sep-13 ND ND ND ND ND 54.4
7-Nov-13 13.4 ND ND ND 1.37 56.6
29-Jan-14 6.9 ND ND ND 3.16 66.8
22-May-14 14.6 ND ND ND 4.94 80.7
14-Aug-14 229 ND ND ND 5.1 80
24-Sep-14 371 ND ND ND NIA NIA
29-Oct-14 387 ND ND ND 8.40 92.1
12-Mar-15 153 ND ND ND 4.30 65.3
11-Jun-15 65.3 ND ND ND 1.06 61
3-Sep-15 82 ND ND ND 1.18 65.8
28-Oct-15 112 ND ND ND 1.69 58.3
17-Mar-16 45.9 ND ND ND 1.63 56.5
26-May-16 93.4 ND ND ND 1.89 61.3
3-Aug-16 49 ND ND ND 2.20 60
26-Oct-16 92.9 ND ND ND 2.78 66.7
8-Mar-17 19.1 ND ND ND 2.75 62.2
20-Jun-17 64.3 ND ND ND 1.81 60.6
3-Aug-17 143 ND ND ND 2.63 67.1
l l-Oct-17 97.8 ND ND ND 2.12 54.2
20-Mar-18 170 ND ND ND 4.55 85.l
14-Jun-18 54.5 ND ND ND 2.83 62.5
30-Aug-18 54.5 ND ND ND 2.53 73.0
12-Dec-18 52.0 ND ND ND 2.88 68.8
19-Mar-19 60.6 ND ND ND 3.36 66.3
19-Jun-19 76.2 ND ND ND 2.43 71.5
12-Sep-19 99.8 ND ND ND 3.55 72.9
18-Dec-19 94.3 ND ND ND 3.37 88.6
18-Mar-20 113 ND ND ND 3.91 76.2
12-Jun-20 141 ND ND ND 4.44 79.7
19-Sep-20 220 ND ND ND 4.74 77.4
4-Nov-20 270 ND ND ND 5.73 85.9
24-Mar-21 248 ND ND ND 5.82 92.6
l 7-Jun-21 247 ND ND ND 6.74 87.4
23-Sep-21 202 ND ND ND 5.32 79.8
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-16 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/1) (111!11)
8-Dec-21 189 ND ND ND 4.85 89.9
23-Mar-22 150 ND ND ND 5.0 84.3
22-Jun-22 120 ND ND ND 4.2 93.2
15-Sep-22 138 ND ND ND 4.41 89.8
9-Dec-22 152 ND ND ND 4.75 91.0
0
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14-Jan-04
10-Oct-06
6-Jul-09 t I I I I
1-Apr-12 i 11 I I I
1· If I • I ~I I 27-Dec-14
22-Sep-17
18-Jun-20
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-32 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2'1) (u2'1)
12-Sep-02 1.6 ND
24-Nov-02 ND ND
28-Mar-03 ND ND
23-Jun-03 ND ND
12-Sep-03 ND ND
8-Nov-03 ND ND
29-Mar-04 ND ND
22-Jun-04 ND ND
17-Sep-04 ND ND
17-Nov-04 ND ND
16-Mar-05 ND ND
30-Mar-05 ND ND
25-May-05 <1 NA NA NA <0.1 NA
31-Aug-05 <1 <1 3.2 <1 <0.1 NA
1-Dec-05 <1 <1 <1 <1 <0.1 NA
9-Mar-06 <1 <1 <1 <1 <0.1 32
14-Jun-06 <1 <1 3.5 <1 <0.1 30
20-Jul-06 <1 <1 1.8 <1 <0.1 32
8-Nov-06 <I <1 1.5 <1 <0.1 31
28-Feb-07 <1 <1 <1 <1 <0.1 32
27-Jun-07 <1 <1 <1 <1 <0.1 32
15-Aug-07 <1 <1 <1 <1 <0.1 31
10-Oct-07 <1 <1 <1 <1 <0.1 32
26-Mar-08 <1 <1 <1 <1 <0.1 31
25-Jun-08 <1 <1 <1 <1 <0.05 29
10-Sep-08 <1 <1 <1 <1 <0.05 30
15-Oct-08 <1 <1 <1 <1 <0.05 26
4-Mar-09 <1 <1 <1 <1 <0.1 30
24-Jun-09 <1 <1 <1 <1 <0.1 31
15-Sep-09 <1 <1 <1 <1 <0.1 33
16-Dec-09 <1 <1 <1 <1 <0.1 34
17-Feb-10 <l <1 <1 <1 <0.1 38
14-Jun-10 <1 <1 <1 <1 <0.1 32
16-Aug-10 <1 <1 <l <I <0.1 28
6-Oct-10 <1 <1 <1 <1 <0.1 24
23-Feb-11 ND ND ND ND ND 40
25-May-l l ND ND ND ND ND 31
16-Aug-11 ND ND ND ND ND 33
6-Dec-11 ND ND ND ND ND 32
Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-32 (ug/1) Tetrachloride (ug/1) Chloride (nrg/1) (mg/I) (tiw).) (u2'1.)
18-Jan-12 ND ND ND ND ND 21
4-Jun-12 ND ND ND ND ND 32
5-Sep-12 ND ND ND ND ND 33
10-Oct-12 ND ND ND ND ND 35
13-Feb-13 ND ND ND ND ND 34.3
18-Jun-13 ND ND ND ND ND 34.9
4-Sep-13 ND ND ND ND ND 33
29-Oct-13 ND ND ND ND ND 35.7
29-Jan-14 ND ND ND ND ND 34
23-May-14 ND ND ND ND ND 39.7
26-Aug-14 ND ND ND ND ND 34
29-Oct-14 ND ND ND ND ND 34.9
17-Mar-15 ND ND ND ND ND 36.3
11-Jun-15 ND ND ND ND ND 35.8
9-Sep-15 ND ND ND ND ND 37.7
28-Oct-15 ND ND ND ND ND 34.7
22-Mar-16 ND ND ND ND ND 36.7
8-Jun-16 ND ND ND ND ND 37.2
17-Aug-16 ND ND ND ND ND 37.5
31-Oct-16 ND ND ND ND ND 36.9
21-Mar-17 ND ND ND ND ND 33.7
21-Jun-17 ND ND ND ND ND 37.2
4-Aug-17 ND ND ND ND ND 38.1
12-Oct-l 7 ND ND ND ND ND 32.6
15-Mar-18 ND ND ND ND ND 39.4
14-Jun-18 ND ND ND ND ND 34.4
5-Sep-18 ND ND ND ND ND 41.2
29-Oct-18 ND ND ND ND ND 32.9
19-Mar-19 ND ND ND ND ND 35.3
18-Jun-19 ND ND ND ND ND 36.5
ll-Sep-19 ND ND ND ND ND 33.7
18-Dec-19 ND ND ND ND ND 36.3
18-Mar-20 ND ND ND ND ND 36.0
12-Jun-20 ND ND ND ND ND 35.6
18-Sep-20 ND ND ND ND ND 34.7
4-Nov-20 ND ND ND ND ND 31.3
22-Mar-21 ND ND ND ND ND 36.8
17-Jun-21 ND ND ND ND ND 35.8
23-Sep-21 ND ND ND ND ND 34.3
Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-32 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u!W) (u2'])
9-Dec-21 ND ND ND ND ND 35.8
22-Mar-22 ND ND ND ND ND 28.6
16-May-22 ND ND ND ND ND 26.9
15-Sep-22 ND ND ND ND ND 37.2
8-Dec-22 ND ND ND ND ND 35.1
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-18 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (u2'.I)
12-Sep-02 440 1.49
24-Nov-02 240 13.3
28-Mar-03 160 13.1
23-Jun-03 110 19
12-Sep-03 68.0 19.9
9-Nov-03 84.0 20.7
29-Mar-04 90.0 14
22-Jun-04 82.0 12.2
17-Sep-04 38.0 14.5
17-Nov-04 51.0 17.3
16-Mar-05 38.0 14.1
25-May-05 29.8 NA NA NA 12.9 NA
31-Aug-05 39 <1 2.8 <1 13.3 NA
1-Dec-05 14 <1 1.1 <1 7.3 NA
9-Mar-06 12.0 <1 1.1 <1 5.9 5.9
14-Jun-06 12.0 <1 1.6 <1 4.7 35
20-Jul-06 10.8 <1 2.7 <1 6.1 35
8-Nov-06 139 <1 <1 <1 8.7 34
28-Feb-07 9.2 <1 <1 <1 5.1 30
27-Jun-07 8.0 <1 <1 <1 4.9 28
15-Aug-07 8.9 <1 <1 <1 5 32
10-Oct-07 7.4 <1 <1 <1 4.4 27
26-Mar-08 6.4 <1 <1 <1 0.7 23
25-Jun-08 5.7 <1 <1 <l 4.55 23
10-Sep-08 8.0 <l <l <1 4.68 26
15-Oct-08 9.4 <1 <l <l 5,15 30
4-Mar-09 11.0 <1 <1 <1 5.2 29
24-Jun-09 16.0 <l <1 <l 6.2 30
15-Sep-09 13.0 <1 <1 <1 5.9 26
22-Dec-09 8.2 <l <1 <1 5.4 30
24-Feb-10 69.0 <1 <l <1 5.1 41
9-Jun-10 29.0 <l <1 <1 9 35
12-Aug-10 29.0 <1 <l <1 9 37
13-Oct-10 30.0 <l <l <1 10 50
22-Feb-1 l 39.0 ND ND ND 10 52
26-May-11 26.0 ND ND ND 9 36
17-Aug-l I 29.0 ND ND ND 4.6 23
7-Dec-11 28.0 ND ND ND 6.3 23
19-Jan-12 25.0 ND ND ND 4.4 18
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-18 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (owl) (02'1)
13-Jun-12 24.0 ND ND ND 6.6 30
11-Sep-12 38.0 ND ND ND 6.6 26
3-Oct-12 30.0 ND ND ND 6 27
13-Feb-13 34.9 ND ND ND 5.58 23.l
13-Jun-13 37.9 ND ND ND 8.86 22.9
5-Sep-13 41.0 ND ND ND 12.1 36.2
13-Nov-13 44.3 ND ND ND 14.2 37.1
30-Jan-14 38.9 ND ND ND 12.8 40.9
22-May-14 34.8 ND ND ND 12.2 47
14-Aug-14 32.8 ND ND ND 9.8 49
28-Oct-14 33.0 ND ND ND 11.1 40.8
12-Mar-15 32.0 ND ND ND 11.7 41.6
11-Jun-15 30.5 ND ND ND 9.69 43.5
3-Sep-15 28.7 ND ND ND 15.7 47.6
28-Oct-15 52.9 ND ND ND 6.24 39.4
l 7-Mar-16 56.6 ND ND ND 5.96 40.7
8-Jun-16 60.0 ND ND ND 5.43 43.8 1,
3-Aug-16 56.3 ND ND ND 5.79 40.7
26-Oct-16 60.1 ND ND ND 5.24 43.9
16-Mar-17 62.0 ND ND ND 4.47 39.4
20-Jun-17 63.8 ND ND ND 4.5 41.6
3-Aug-17 62.8 ND ND ND 4.24 40.4
10-Oct-17 62.9 ND ND ND 4.43 37.1
15-Mar-18 62.3 ND ND ND 4.32 44.3
13-Jun-18 59.9 ND ND ND 4.09 39.5
30-Aug-18 56.2 ND ND ND 3.51 45.6
13-Dec-18 57.6 ND ND ND 3.60 38.2
19-Mar-19 52.8 ND ND ND 3.85 37.6
19-Jun-19 54.2 ND ND ND 4.01 39.5
11-Sep-19 56.2 ND ND ND 3.25 36.8
18-Dec-19 62.0 ND ND ND 3.02 42.7
18-Mar-20 57.0 ND ND ND 3.71 39.4
12-Jun-20 58.2 ND ND ND 3.62 41.4
18-Sep-20 60.0 ND ND ND 3.36 38.7
l l-Nov-20 58.6 ND ND ND 3.67 39.6
18-Mar-21 52.0 ND ND ND 3.61 41.8
16-Jun-21 54.2 ND ND ND 4.24 37.7
22-Sep-21 49.9 ND ND ND 3.37 29.8
8-Dec-21 57.0 ND ND ND 3.90 41.1
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-18 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u,z/1) (u2/I)
23-Mar-22 56.0 ND ND ND 3.4 39.1
22-Jun-22 62.9 ND ND ND 3.4 48.1
14-Sep-22 60.6 ND ND ND 3.46 44.7
9-Dec-22 62.6 ND ND ND 3.60 44.4
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-19 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwl) (u2'1)
12-Sep-02 7700 47.6
24-Nov-02 5400 42
28-Mar-03 4200 61.4
15-May-03 4700 NA
23-Jun-03 4500 11.4
15-Jul-03 2400 6.8
15-Aug-03 2600 4
12-Sep-03 2500 5.7
25-Sep-03 4600 9.2
29-Oct-03 4600 7.7
9-Nov-03 2600 4.8
29-Mar-04 NA NA
22-Jun-04 NA NA
16-Aug-04 7100 9.91
17-Sep-04 2600 4.5
17-Nov-04 1800 3.6
16-Mar-05 2200 5.3
25-May-05 1200 5.7
31-Aug-05 1400 <5 <5 <5 4.6 NA
l-Dec-05 2800 <50 <50 <50 <0.1 NA
9-Mar-06 1200 <50 <50 <50 4 86
14-Jun-06 ll00 <50 <50 <50 5.2 116
20-Jul-06 ll20 <50 <50 <50 4.3 123
8-Nov-06 1050 1.6 2.6 <1 4.6 134
28-Feb-07 1200 1.3 <l <1 4 133
27-Jun-07 1800 2.3
15-Aug-07 1100 1.9 <I <I 4.1 129
10-Oct-07 1100 1.9 <1 <1 4 132
26-Mar-08 1800 2.9 <l <I 2.2 131
25-Jun-08 1000 1 <l <l 2.81 128
10-Sep-08 3600 8.6 <1 <I 36.2 113
15-Oct-08 4200 12 <1 <1 47.8 124
4-Mar-09 1100 1.2 <1 <l 3.2 127 1,
24-Jun-09 990 1.2 <l <1 2.4 132
15-Sep-09 6600 15 <l <I 0.1 43
14-Dec-09 4700 16 <1 <1 26.7 124
17-Feb-10 940 1.3 <1 <l 2 144
9-Jun-10 1800 4.2 <l <1 4.4 132
16-Aug-10 2000 4.9 <1 <l 5.9 142
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-19 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u(!}J) (ue/1)
1 l-Oct-10 1200 1.3 <l <1 2.7 146
17-Feb-1 l 3400 17 ND ND 17 135
7-Jun-11 4000 8.3 ND ND 12 148
17-Aug-J 1 970 2.1 ND ND 3 148
5-Dec-11 2200 5.4 ND ND 5 148
23-Jan-12 650 1.5 ND ND 0.6 138
6-Jun-12 460 l.1 ND ND 2.4 149
5-Sep-12 950 3.5 ND ND 2.5 149
3-Oct-12 1500 4 ND ND 4.1 150
11-Feb-13 4210 5.J 5 ND ND 7.99 164
5-Jun-13 2070 5.15 ND ND 2.95 148
3-Sep-13 8100 20.7 ND ND 17.6 179
29-Oct-13 942 6.42 ND ND 4.7 134
27-Jan-14 586 4.05 ND ND 1.62 134
19-May-14 810 5.51 ND ND 1.34 152
11-Aug-14 1410 1.9 8.3 ND 1.6 140
21-Oct-14 4310 4.8 ND ND 4.72 130
9-Mar-15 4660 8.92 ND ND 8.56 238
8-Jun-15 1570 2.62 ND ND 0.916 180
4-Sep-15 7860 7.78 ND ND 11.6 326
l 9-Oct-15 7840 12.2 5.46 ND 10.6 252
9-Mar-16 7780 13.5 1.40 ND 15.7 276
23-May-16 12600 23.1 ND ND 1.27 204
25-Jul-16 6040 9.89 ND ND 10.5 214
25-Jul-16 6040 9.89 ND ND 10.5 214
13-Oct-J 6 6640 10.8 ND ND 10.0 200
8-Mar-17 1240 3.06 ND ND 11.1 461
13-Ju n-17 510 1.35 ND ND 0.243 135
26-Ju.1-17 8840 13.0 ND ND 1.12 218
ll-Oct-17 129 ND ND ND 0.377 139
12-Mar-18 2640 1.36 ND ND 8.61 193
8-Jun-18 2980 3.45 ND ND 0.494 138
22-Aug-18 1910 2.03 ND ND 2.55 166
28-Nov-18 5270 6.18 ND ND 0.233 140
8-Mar-19 2050 2.43 ND ND 6.58 197
5-Jun-19 11500 15.90 ND ND 8.96 160
4-Sep-19 6670 JO.IO ND ND 0.332 153
10-Dec-19 551 ND ND ND 0.535 147
19-Feb-20 8720 13.7 5.4] ND 10.1 205
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-19 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2/l) (uw[)
27-May-20 7600 10.4 ND ND 1.14 147
4-Sep-20 1350 1.98 ND ND 11.6 188
28-Oct-20 660 1.10 ND ND 1.10 104
23-Feb-21 6660 8.40 ND ND 6.61 167
9-Jun-21 775 ND ND ND 4.04 115
24-Aug-21 4450 7.83 1.98 1.25 6.68 172
1-Dec-21 6950 13.20 ND ND 11.0 184
9-Mar-22 654 ND ND ND 1.7 119
8-Jun-22 2540 2.7 4.0 ND 1.4 128
30-Aog-22 4750 2.5 ND ND 4.76 178
30-Nov-22 7380 8.0 ND ND 3.58 129
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-20 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u~/1) (ue/1)
25-May-05 39000 NA NA NA 10.1 NA
31-Aug-05 3800 <10 <10 <10 2.9 NA
l-Dec-05 19000 <250 <250 <250 1.8 NA
9-Mar-06 9200 <500 <500 <500 3.8 120
14-Jun-06 61000 <500 <500 <500 9.4 235
20-Jul-06 5300 <1000 <1000 <1000 2.9 134
8-Nov-06 11000 7.1 1.9 2.2 3.5 124
28-Feb-07 4400 3.1 <1 1.1 4.2 124
27-Jun-07 1800 2.2 <1 <l 2.3 112
15-Aug-07 5200 3.5 <1 1.8 2.1 117
10-0ct-07 9000 6.8 <1 1.9 5.6 170
26-Mar-08 13000 9 <l 1.5 0.9 132
25-Jun-08 30000 13 <1 1.2 7.96 191
10-Sep-08 21000 15 <I 3.7 4.44 156
15-0ct-08 NA NA NA NA 5.51 166
4-Mar-09 8200 5.7 <1 5.2 5.1 164
24-Jun-09 6800 4.9 <2 4.2 2.9 164
15-Sep-09 13000 8.4 <2 4.4 3.3 153
14-Dec-09 15000 14 <1 3 5.3 187
17-Feb-10 3500 2.7 <l 3.2 2 179
14-Jun-10 18000 11 <1 3.7 5.6 200
16-Aug-10 15000 12 <1 2.2 5.3 196
1 l-Oct-10 24000 20 <1 5.5 4.6 203
23-Feb-11 31000 27 ND 19 4.4 220
1-Jun-11 8100 10 ND 2.1 4.8 177
17-Aug-11 6800 7.3 ND 3.1 6.5 207
16-Nov-ll 7900 7.2 ND 2.5 4.2 186
23-Jan-12 11000 10 ND 1.3 7.9 207
6-Jun-12 36000 33 ND ND 11 262
4-Sep-12 13000 26 ND ND 10.8 289
3-0ct-12 19000 22 ND ND 11 302
ll-Feb-13 18500 19.6 ND 1.21 9.07 252
5-Jun-13 26300 32.5 ND 1.13 9.76 250
3-Sep-13 26800 25.7 ND 2.14 8.65 260
29-0ct-13 15700 17.3 ND 1.37 9.64 272
27-Jan-14 17800 18.4 ND 2.04 7.56 254
19-May-14 22100 22.1 2.31 3.98 5.95 269
ll-Aug-14 12400 14.1 55.2 2.2 4.3 299
21-0ct-14 23300 18.5 4.04 2.38 7.67 292
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-20 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u211.) (u211)
9-Mar-15 19900 20.8 4.85 1.38 9.8 290
8-Jun-15 17600 16.2 J 3.4 1.73 5.76 296
31-Aug-15 17000 15. l 12.3 ND 9.27 365
19-Oct-15 17000 14.5 10.8 1 6.23 293
9-Mar-16 21600 20.2 4.09 1.16 10.3 293
23-May-16 33700 40.6 ND ND 11.2 318
25-Jul-16 23600 26.6 ND ND 11.3 307
12-Oct-16 21300 24.4 ND ND 11.4 301
8-Mar-17 23400 23.5 ND ND 12 290
13-Jun-17 18100 23.4 ND ND 9.76 281
26-Jul-17 27600 25 .0 ND ND 10.8 292
12-Oct-l 7 11600 11.2 2.34 ND 8.91 293
12-Mar-18 15400 15.9 1.77 2.36 9.5 289
14-Jun-18 12000 ND ND 7.77 10.4 258
22-Aug-18 10500 9.85 4.98 ND 8.14 282
28-Nov-18 9500 8.32 15.6 ND 9.72 295
8-Mar-19 15600 15.40 ND ND 6.70 272
5-Jun-1 9 13700 IO.IO ND ND 9.59 279
4-Sep-19 10500 8.39 ND ND 10.2 286
10-Dec-19 8790 5.92 2.67 ND 9.75 307
19-Feb-20 14300 8.60 10.7 ND 9.81 310
27-May-20 5800 6.74 1.30 12.3 7.23 301
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-21 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ul!!I) (ul!I))
25-May-05 192 NA NA NA 14.6 NA
31-Aug-05 78 <5 <5 <5 10.1 NA
1-Dec-05 86 <l 1.0 <1 9.6 NA
9-Mar-06 120 <2.5 <2.5 <2.5 8.5 347
14-Jun-06 130 <2.5 <2.5 <2.5 10.2 318
20-Jul-06 106 <2.5 <2.5 <2.5 8.9 357
8-Nov-06 139 2 <l <1 8.7 296
28-Feb-07 160 1.8 <1 <1 8.7 306
27-Jun-07 300 5.8 <1 <I 8.6 327
15-Aug-07 140 <1 <1 <1 8.6 300
10-Oct-07 120 <1 <1 <1 8.3 288
26-Mar-08 380 7 <1 <1 14.3 331
25-Jun-08 160 1.7 <1 <1 8.81 271
10-Sep-08 120 1.6 <1 <1 7.57 244
15-Oct-08 170 2 <1 <2 8.00 284
ll-Mar-09 180 <1 <l <1 8.3 279
24-Jun-09 200 <1 <1 <1 8.1 291
15-Sep-09 140 <1 <1 <1 9.2 281
22-Dec-09 160 <1 <1 <1 8.4 256
25-Feb-10 170 <1 <1 <1 8.4 228
10-Jun-10 210 1.2 <1 <1 12 266
12-Aug-10 390 9.2 <1 <1 14 278
13-Oct-10 200 1.2 <1 <1 7 210
22-Feb-11 230 1.2 ND ND 9 303
28-Jun-11 290 4.8 ND ND 12 290
17-Aug-ll 460 6.3 ND ND 14 287
7-Dec-11 390 6.7 ND ND 13 276
19-Jan-12 420 6.4 ND ND 15 228
13-Jun-12 400 5.4 ND ND 11 285
13-Sep-12 410 6 ND ND 13 142
4-Oct-12 390 7 ND ND 14 270
13-Jan-13 282 5.25 ND ND 11.8 221
18-Jun-13 328 3.49 ND ND 13.8 243
12-Sep-13 244 2.13 ND ND 10.3 207
13-Nov-13 204 ND ND ND 9 206
5-Feb-14 220 6.23 ND ND 11.4 200
22-May-14 240 4.73 ND ND 11.5 243
27-Aug-14 204 ND ND ND 7.1 230
29-Oct-14 229 1.04 ND ND 10 252
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-21 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u211) (u2fl)
12-Mar-15 292 1.75 ND ND 10.9 255
8-Jun-15 366 1.92 ND ND 13.l 494
31-Aug-15 281 ND ND ND 14.7 499
19-Oct-15 339 ND ND ND 14.3 413
9-Mar-16 390 ND ND ND 14.6 452
23-May-16 545 ND ND ND 13.1 425
25-Jul-16 456 ND ND ND 16.5 457
12-Oct-16 434 ND ND ND 11.4 301
12-Oct-16 434 ND ND ND 11.4 301
8-Mar-17 598 2.36 ND ND 12.0 290
13-Jun-17 224 1.16 ND ND 9.53 309
26-Jul-17 537 1.05 ND ND 18.2 447
11-Oct-17 466 ND ND ND 16.9 378
12-Mar-18 421 ND ND ND 15.8 447
8-Jun-18 532 ND ND ND 14.1 387
22-Aug-18 476 ND ND ND 0.236 182
22-Oct-18 585 ND ND ND 15.2 392
8-Mar-19 323 ND ND ND 8.99 180
5-Jun-19 734 ND ND ND 17.5 456
4-Sep-19 596 ND ND ND 14.7 478
10-Dec-19 794 ND ND ND 5.73 339
19-Feb-20 844 ND 2.58 ND 8.93 446
27-May-20 767 ND ND ND 15.4 353
4-Sep-20 920 ND ND ND 12.6 382
28-Oct-20 948 ND ND ND 16.3 411
23-Feb-21 400 ND ND ND 15.2 454
9-Jun-21 1130 ND ND ND 21.5 461
24-Aug-21 669 ND ND ND 12.9 375
l-Dec-21 649 ND ND ND 17 .2 227
9-Mar-22 469 ND ND ND 2.2 110
8-Jun-22 657 ND ND ND 8.9 331
30-Aug-22 1070 ND ND ND 14.3 425
30-Nov-22 482 ND ND ND 2.12 158
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-22 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/1) (u2'1)
25-May-05 340 NA NA NA 18.2 NA
31-Aug-05 290 <5 <5 <5 15.7 NA
l-Dec-05 320 <5 <5 <5 15.1 NA
9-Mar-06 390 <10 <10 <10 15.3 236
14-Jun-06 280 <10 <10 <10 14.3 221
20-Jul-06 864 <10 <10 <10 14.5 221
8-Nov-06 350 <l 1.6 <l 15.9 236
28-Feb-07 440 <1 <l <l 20.9 347
27-Jun-07 740 <l <l <1 19.3 273
15-Aug-07 530 <l <l <l 19.3 259
10-Oct-07 440 <1 <l <l 18.8 238
26-Mar-08 1400 <l <l <l 39.1 519
25-Jun-08 1200 <1 <l <l 41.9 271
10-Sep-08 6300 1.3 <l <l 38.7 524
15-Oct-08 630 <2 <2 <2 36.3 539
l l-Mar-09 390 <l <l <l 20.7 177
24-Jun-09 730 <1 <l <l 20.6 177
15-Sep-09 2300 <1 <l <1 40.3 391
29-Dec-09 380 <1 <l <1 17.8 175
3-Mar-10 2200 <l <l <1 36.6 427
15-Jun-10 540 <l <1 <1 19 134
24-Aug-10 340 <1 <l <1 15 130
13-Oct-10 340 <1 <l <1 16 134
23-Feb-11 1300 ND ND ND 18 114
l-Jun-11 210 ND ND ND 17 138
l 7-Aug-11 450 ND ND ND 15 120
7-Dec-11 400 ND ND ND 19 174
19-Jan-12 200 ND ND ND 14 36
13-Jun-12 120 ND ND ND 12.8 35
12-Sep-12 940 ND ND ND 7 121
4-Oct-12 330 ND ND ND 14 130
ll-Feb-13 10600 3.24 ND ND 58 635
5-Jun-13 12500 3.35 ND ND 50.2 586
3-Sep-13 9640 3.25 ND ND 29.7 487
29-Oct-13 13300 8.09 ND ND 45.2 501
27-Jan-14 12100 6.06 ND 2.83 54.6 598
19-May-14 12400 6.65 ND ND 47.2 614
l l-Aug-14 12400 1.9 40 ND 41.5 540
21-Oct-14 12400 3.32 1.61 ND 54.9 596
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-22 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/1) (uw))
9-Mar-15 12700 3.77 4.31 ND 69.2 675
8-Jun-15 8050 2.42 3.42 ND 47.1 390
31-Aug-15 7810 ND 5.47 ND 64.7 557
l 9-Oct-15 7530 ND 5.1 ND 56.1 567
9-Mar-16 6070 ND ND ND 31.1 583
23-May-16 8570 2.64 ND ND 58.4 598
25-Jul-16 5840 ND ND ND 61.3 619
12-Oct-J 6 3370 1.08 ND ND 61.5 588
8-Mar-17 5320 1.56 ND ND 69.8 566
13-Jun-17 3670 1.21 ND ND 70.8 572
26-Jul-17 5150 ND ND ND 66.1 391
ll-Oct-17 4770 ND ND ND 80.l 600
12-Mar-18 4530 ND ND ND 62.3 607
8-Jan-18 3010 ND ND ND 72.5 580
22-Aug-l 8 3600 ND ND ND 55.4 613
28-Nov-18 2680 ND ND ND 75.7 567
8-Mar-19 4310 1.02 ND ND 71.9 528
5-Jun-19 4690 ND 1.13 ND 83 .9 662
4-Sep-19 3460 ND ND ND 72.5 588
10-Dec-l 9 3820 ND ND ND 59.9 608
19-Feb-20 3910 ND ND ND 57.7 606
27-May-20 2530 ND ND ND 60.5 578
4-Sep-20 3760 ND ND ND 64.8 514
28-Oct-20 3640 ND 6.83 ND 64.9 523
23-Feb-21 5100 ND ND ND 69.6 618
9-Jun-21 4520 ND ND ND 89.3 408
24-Aug-21 3510 ND ND ND 35.1 410
l-Dec-21 3330 ND ND ND 68.8 586
9-Mar-22 3320 ND ND ND 40.4 442
8-Jun-22 2600 ND 4.4 ND 45 564
30-Aug-22 3190 ND ND ND 69.9 637
30-Nov-22 2350 ND ND 1.6 62.0 601
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-23 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2'1) (u2'1)
27-Jun-07 <1 <1 <1 <1 <0.1 47
15-Aug-07 <1 <1 <1 <1 <0.1 46
10-Oct-07 <1 <1 <1 <l <0.1 43
26-Mar-08 <1 <1 <1 <l <0.1 41
25-Jun-08 <l <1 <1 <1 <0.05 41
I0-Sep-08 <1 <l <1 <l <0.05 35
15-Oct-08 <2 <2 <2 <2 <0.05 51
4-Mar-09 <1 <1 <1 <1 <0.1 41
24-Jun-09 <1 <l <1 <1 <0.1 43
15-Sep-09 <1 <l <1 <1 <0.1 43
16-Dec-09 <1 <1 <1 <1 <0.1 37
24-Feb-10 <1 <1 <1 <1 <0.1 45
8-Jun-10 <1 <1 <1 <1 <0.1 40
10-Aug-10 <1 <1 <1 <1 <0.1 40
5-Oct-10 <1 <1 <l <1 <0.1 34
16-Feb-11 ND ND ND ND ND 44
25-May-11 ND ND ND ND ND 44
16-Aug-11 ND ND ND ND ND 41
15-Nov-11 ND ND ND ND ND 43
17-Jan-12 ND ND ND ND ND 40
31-May-12 ND ND ND ND ND 44
29-Aug-12 ND ND ND ND ND 46
3-Oct-12 ND ND ND ND ND 45
7-Feb-13 ND ND ND ND ND 43.6
30-May-13 ND ND ND ND 0.116 44.7
5-Sep-13 ND ND ND ND ND 48.0
7-Nov-13 ND ND ND ND ND 43.0
23-Jan-14 ND ND ND ND ND 44.6
21-May-14 ND ND ND ND ND 42.3
13-Aug-14 ND ND ND ND ND 46.0
28-Oct-14 ND ND ND ND ND 46.8
12-Mar-15 ND ND ND ND ND 47.3
10-Jun-15 ND ND ND ND ND 48.4
3-Sep-15 ND ND ND ND ND 54.1
28-Oct-15 ND ND ND ND ND 46.4
16-Mar-16 ND ND ND ND ND 49.1
26-May-16 ND ND ND ND ND 50.4
3-Aug-16 ND ND ND ND ND 49.6
20-Oct-16 ND ND ND ND ND 52.1
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-23 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2fl) (u2'1)
15-Mar-17 ND ND ND ND ND 47.7
15-Jun-17 ND ND ND ND ND 51.5
2-Aug-17 ND ND ND ND ND 51.8
10-Oct-17 ND ND ND ND ND 44.7
14-Mar-18 ND ND ND ND ND 53.8
13-Jun-18 ND ND ND ND ND 47.6
30-Aug-18 ND ND ND ND ND 56.0
12-Dec-18 ND ND ND ND ND 54.9
16-Mar-19 ND ND ND ND ND 48.9
13-Jun-19 ND ND ND ND ND 50.2
11-Sep-19 ND ND ND ND ND 47.9
14-Dec-19 ND ND ND ND ND 54.4
17-Mar-20 ND ND ND ND ND 50.0
J l-Jun-20 ND ND ND ND ND 49.0
17-Sep-20 ND ND ND ND ND 48.8
4-Nov-20 ND ND ND ND ND 49.3
17-Mar-21 ND ND ND ND ND 51.6
16-Jun-21 ND ND ND ND ND 48.8
15-Sep-21 ND ND ND ND ND 42.8
8-Dec-21 ND ND ND ND ND 51.2
22-Mar-22 ND ND ND ND ND 43.8
16-Jun-22 ND ND ND ND 0.10 49.2
14-Sep-22 ND ND ND ND ND 45.0
7-Dec-22 ND ND ND ND ND 47.5
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Chloroform Carbon Chloromethane .Methylene Nitrate Chloride TW4-24 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwl) (uwl)
27-Jun-07 2.6 <l <1 <1 26.1 770
15-Aug-07 2.2 <1 <1 <] 29 791
J0-Oct-07 1.5 <l <1 <I 24.7 692
26-Mar-08 1.5 <l <] <] 24.4 740
25-Jun-08 1.4 <l <1 <l 45.3 834
10-Sep-08 2.9 <1 <1 <1 38.4 1180
15-Oct-08 <2 <2 <2 <2 44.6 1130
4-Mar-09 1.4 <1 <] <l 30.5 1010
24-Jun-09 1.5 <1 <1 <1 30.4 759
15-Sep-09 1.4 <1 <l <1 30.7 618
17-Dec-09 1.2 <1 <l <1 28.3 1080
25-Feb-10 1.3 <1 <1 <1 33.1 896
9-Jun-10 1.7 <1 <l <1 30 639
24-Aug-10 1.8 <1 <1 <1 31 587
6-Oct-10 1.4 <1 <1 <1 31 522
l 7-Feb-11 1.8 ND ND ND 31 1 JOO
26-May-ll 1.1 ND ND ND 35 1110
17-Aug-ll 1.7 ND ND ND 34 967
7-Dec-11 1.2 ND ND ND 35 608
18-Jan-12 ND ND ND ND 37 373
6-Jun-12 ND ND ND ND 37 355
30-Aug-12 1.1 ND ND ND 37 489
3-Oct-12 1.0 ND ND ND 38 405
ll-Feb-13 5.7 ND ND ND 35.9 1260
5-Jun-13 17.4 ND ND ND 23.7 916
3-Sep-13 21.8 ND ND ND 32.6 998
29-Oct-13 32.5 ND ND ND 34.6 1030
27-Jan-14 78.5 ND ND 1.18 31.6 809
19-May-14 62.7 ND ND ND 35 1020
l 1-Aug-14 76.3 ND ND ND 31.5 1150
2 1-Oct-14 25.8 ND ND ND 35.7 1050
9-Mar-15 49.2 ND ND ND 34.6 944
8-Jun-15 4.3 ND ND ND 31.8 1290
31-Aug-15 46.9 ND ND ND 25.3 788
19-Oct-15 25.3 ND ND ND 29.6 909
9-Mar-16 22.8 ND ND ND 29.1 989
23-May-16 69.6 ND ND ND 24.2 771
25-JuJ-16 17.8 ND ND ND 34.4 1180
12-Oct-16 20.8 ND ND ND 31.9 1010
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-24 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ae/1) (ue/1)
8-Mar-17 18.3 ND ND ND 41.3 1090
13-Jun-17 17.2 ND ND ND 39.9 1080
26-Jul-l 7 17.8 ND ND ND 40.0 1230
ll-Oct-17 16.0 ND ND ND 31.7 895
12-Mar-18 24.9 ND ND ND 44.9 1320
14-Jun-18 49.2 ND ND ND 33.6 792
22-Aug-18 35.0 ND ND ND 33.8 996
28-Nov-18 21.0 ND ND ND 38.4 1100
8-Mar-19 28.1 ND ND ND 39.3 1040
5-Jun-19 28.8 ND ND ND 33.2 1020
4-Sep-19 31.1 ND ND ND 36.4 1130
10-Dec-19 43.3 ND ND ND 33.8 1090
19-Feb-20 61.7 ND ND ND 37. l 1010
27-May-20 49.4 ND ND ND 41.7 1060
4-Sep-20 63.8 ND ND ND 39.1 1100
28-Oct-20 72.6 ND ND ND 35.9 1050
23-Feb-21 96.2 ND 3.6 ND 41.9 1170
9-Jun-21 41 .2 ND ND ND 48.0 938
24-Aug-21 103 ND ND ND 26.7 1010
l -Dec-21 112 ND ND ND 43.6 1140
9-Mar-22 114 ND ND ND 36.2 890
8-Jun-22 124 ND ND ND 35 944
30-Aug-22 88.9 ND ND ND 32.0 868
30-Nov-22 79.5 ND ND ND 27.6 972
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-25 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (ue/1)
27-Jun-07 <1 <1 <1 <1 17.1 395
15-Aug-07 <1 <1 <1 <1 16.7 382
10-Oct-07 <1 <1 <1 <1 17 356
26-Mar-08 <1 <1 <1 <1 18.7 374
25-Jun-08 <1 <1 <1 <1 22.1 344
10-Sep-08 <1 <1 <1 <1 18.8 333
15-Oct-08 <2 <2 <2 <2 21.3 366
4-Mar-09 <1 <1 <1 <1 15.3 332
24-Jun-09 <1 <1 <I <1 15.3 328
15-Sep-09 <1 <1 <1 <1 3.3 328
16-Dec-09 <1 <1 <1 <1 14.2 371
23-Feb-10 <1 <1 <1 <1 14.4 296
8-Jun-10 <1 <1 <1 <1 16 306
10-Aug-10 <1 <1 <1 <1 14 250
5-Oct-10 <1 <1 <1 <1 15 312
16-Feb-11 ND ND ND ND 15 315
25-May-ll ND ND ND ND 16 321
16-Aug-11 ND ND ND ND 16 276
15-Nov-11 ND ND ND ND 16 294
18-Jan-12 ND ND ND ND 16 304
31-May-12 ND ND ND ND 16 287
11-Sep-12 ND ND ND ND 17 334
3-Oct-12 ND ND ND ND 17 338
11-Feb-13 ND ND ND ND 9.04 190
5-Jun-13 ND NU ND ND 5.24 136
3-Sep-13 ND ND ND ND 5.69 119
29-Oct-13 ND ND ND ND 6.1 88.6
27-Jan-14 ND ND ND ND 2.16 85.7
19-May-14 ND ND ND ND 1.21 51.1
ll-Aug-14 ND ND ND ND 1.6 67
21-Oct-14 ND ND ND ND 1.03 58.1
9-Mar-15 ND ND ND ND 14.4 310
8-Jun-15 ND ND ND ND 1.14 58.3
31-Aug-15 ND ND ND ND 1.63 69.2
21-Oct-15 ND ND ND ND 1.78 93.7
9-Mar-16 ND ND ND ND 0.837 62.7
23-May-16 ND ND ND ND 0.959 75.5
25-Jul-16 ND ND ND ND 1.78 74.1
12-Oct-16 ND ND ND ND 1.24 59.8
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-25 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwl) (uwl)
8-Mar-17 1.15 ND ND ND 17 285
13-Jun-17 ND ND ND ND 0.976 69.8
26-Jul-17 ND ND ND ND 1.23 70.l
1 l-Oct-17 ND ND ND ND 1.29 68.0
12-Mar-18 ND ND ND ND 2.23 70.5
14-Jun-18 ND ND ND ND 1.14 60.3
22-Aug-18 ND ND ND ND 0.810 69.l
28-Nov-18 ND ND ND ND 0.634 59.7
8-Mar-19 ND ND ND ND 0.639 65 .0
5-Jun-19 ND ND ND ND 0.821 59.0
4-Sep-19 ND ND ND ND 0.548 58.l
10-Dec-19 ND ND ND ND 0.841 73.l
19-Feb-20 ND ND ND ND 0.607 86.0
27-May-20 ND ND ND ND 0.851 76.8
4-Sep-20 ND ND ND ND 0.994 67 .3
28-Oct-20 ND ND ND ND 1.64 61.3
23-Feb-21 ND ND ND ND 3.43 100
9-Jun-21 ND ND ND ND 1.57 55.l
24-Aug-21 ND ND 1 ND 0.793 69.3
1-Dec-21 ND ND ND ND 0.978 93.7
9-Mar-22 ND ND ND ND 1.8 70.3
8-Jun-22 ND ND ND ND 0.88 72.8
30-Aug-22 ND ND ND ND 1.51 82.5
30-Nov-22 ND ND ND ND 1.47 67.2
0
Jun-07 ◄ ► ◄►
◄►
◄►
'►
' Jun-09 0
◄►
◄►
◄ ►· ◄► •
Jun-11 0
• • 0
•
l
•
Jun-13 1
h
•
•
◄► •
•
Jun-15 1 ► ◄ ◄►
0 • ◄
Jun-17 •
0
0
• 0
•
•
Jun-19 1 ►
◄
◄ 0
0
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◄
Jun-21 H
0
◄
0
0
◄
0
Jun-23
(ug/L)
0 0
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-26 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uW}) (uwl)
15-Jun-J0 13 <l <1 <1 7.9 33
11-Aug-10 5 <) <l <1 9 17
6-Oct-10 5.4 <1 <1 <l 9.6 22
22-Feb-l 1 2.0 ND ND ND 10 30
26-May-ll 2.9 ND ND ND 10 15
17-Aug-11 2.8 ND ND ND 11 19
7-Dec-11 5.2 ND ND ND 10 26
18-Jan-12 7.0 ND ND ND 11 17
6-Jun-12 4.1 ND ND ND 12 19
1 I-Sep-12 4.9 ND ND ND 9 19
3-Oct-12 6.0 ND ND ND 12 19
7-Feb-13 5.0 ND ND ND 12.5 16.6
13-Jun-13 2.1 ND ND ND 13.6 14.5
S-Sep-13 2.8 ND ND ND 11.7 17.6
7-Nov-13 3.4 ND ND ND 15.9 15.9
29-Jan-14 1.4 ND ND ND 14.2 16.9
21-May-14 4.2 ND ND ND 12.5 15.4
1 l-Aug-14 1.3 ND ND ND 10.8 15
28-Oct-14 2.45 ND ND ND 12.3 14.6
12-Mar-15 2.37 ND ND ND 14.4 14.4
10-Jun-15 6.12 ND 1.17 ND 11.3 14.4
3-Sep-15 4.77 ND ND ND 14.2 14.0
28-Oct-15 3.45 ND ND ND 13.9 13.3
16-Mar-16 1.80 ND ND ND 16.9 13.7
26-May-16 8.23 ND ND ND 15.2 13.9
3-Aug-16 4.42 ND ND ND 17.9 13.9
20-Oct-16 19.9 ND ND ND 15.0 14.2
16-Mar-17 46.1 ND ND ND 15.8 16.2
20-Jun-17 244 ND ND ND 15.2 19.0
3-Aag-17 419 ND ND ND 15.2 25.8
l l-Oct-17 608 ND ND ND 10.0 27.3
21-Mar-18 1050 ND ND ND 12.2 35.5
___; 14-Jun-18 960 ND ND ND 13.2 33.5
5-Sep-18 916 ND ND ND 13.5 38.9
13-Dec-18 1050 ND ND ND 11.8 33.4
20-Mar-19 963 ND ND ND 12.2 32.9
19-Jun-19 1070 ND ND ND 12.6 35.8
12-Sep-19 877 ND ND ND 10.9 32.0
18-Dec-19 1070 ND ND ND 10.3 38.3
18-Mar-20 1090 ND ND ND 11.9 36.3
12-Jun-20 1)40 ND ND ND 11.1 35.1
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-26 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (owl) (u.2'1)
19-Sep-20 1120 ND ND ND 10.5 34.8
ll-Nov-20 1160 ND ND ND 11.9 36.3
24-Mar-21 1030 ND ND ND 11.3 38.9
17-Jun-21 1020 ND ND ND 14.2 34.0
23-Sep-21 927 ND ND ND 12.1 36.5
9-Dec-21 993 ND ND ND 8.15 34.9
24-Mar-22 952 ND 2.4 ND 10.9 33.0
22-Jun-22 790 ND 2.4 ND 9.9 34.0
15-Sep-22 930 ND ND ND 10.3 36.7
9-Dec-22 890 ND ND ND 10.4 32.7
0
Jun-10
Oct-10
Feb-11
Jun-11
Oct-11
Feb-12
Jun-12
Oct-12 '
Feb-13
Jun-13
Oct-13
Feb-14 ·
Jun-14
Oct-14
Feb-15 ·,
Jun-15
Oct-15
Feb-16
Jun-16
Oct-16
Feb-17
Jun-17
Oct-17
Feb-18
Jun-18
Oct-18
Feb-19
Jun-19
Oct-19
Feb-20
Jun-20
Oct-20
Feb-21
Jun-21 ·
Oct-21
Feb-22
Jun-22
Oct-22
Feb-23
N 0 0
+:> 0 0
m 0 0
(ug/1)
00 0 0
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3
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-27 Tetrachloride (ug/1) (u2')) (ug/1) Chloride (ug/1) (mg/I) {mg/I)
24-Jan-12 9 ND ND ND 24 11
13-Jun-12 ND ND ND ND 41 17
30-Aug-12 ND ND ND ND 37 21
3-Oct-12 ND ND ND ND 36 18
7-Feb-13 ND ND ND ND 31.2 18.8
30-May-13 ND ND ND ND 29.4 20.3
29-Aug-13 ND ND ND ND 27.2 19
6-Nov-13 ND ND ND ND 29.8 21.8
23-Jan-14 ND ND ND ND 31.3 21.8
21-May-14 ND ND ND ND 31.1 20.6
13-Aug-14 ND ND ND ND 27.0 23
23-Oct-14 ND ND ND ND 28.2 24.4
11-Mar-15 ND ND ND ND 26.5 26.2
10-Jun-15 ND ND ND ND 24.0 26.8
2-Sep-15 1.30 ND ND ND 20.9 26.8
28-Oct-15 1.60 ND ND ND 23.5 26.2
16-Mar-16 2.11 ND ND ND 25.0 28.0
26-May-16 3.16 ND ND ND 21.2 28.7
3-Aug-16 2.78 ND ND ND 21.8 27.1
20-Oct-16 3.80 ND ND ND 19.3 29.4
15-Mar-17 4.33 ND ND ND 22.2 28.3
15-Jun-l 7 5.65 ND ND ND 23.8 27.9
2-Aug-17 6.05 ND ND ND 20.0 29.5
10-Oct-17 5.91 ND ND ND 21.5 26.3
14-Mar-18 6.95 ND ND ND 19.5 30.3
13-Jun-18 5.95 ND ND ND 22.0 28.3
30-Aug-18 7.32 ND ND ND 18.1 31.4
12-Dec-18 7.70 ND ND ND 20.8 28.2
16-Mar-19 6.54 ND ND ND 21.5 26.2
13-Jun-19 8.24 ND ND ND 22.3 28.6
11-Sep-19 7.58 ND ND ND 21.2 25.3
14-Dec-19 7.97 ND ND ND 22.0 27.4
17-Mar-20 8.04 ND ND ND 23.6 27.6
11-Jun-20 7.92 ND ND ND 21.5 28.0
18-Sep-20 5.62 ND ND ND 25.2 26.2
4-Nov-20 7.80 ND ND ND 16.7 26.8
18-Mar-21 4.66 ND ND ND 23.0 27.5
16-Jun-21 4.26 ND ND ND 23.8 25.8
15-Sep-21 3.81 ND ND ND 21.1 21.7
8-Dec-21 4.08 ND ND ND 24.9 26.4
23-Mar-22 3.3 ND ND ND 21.3 22.7
16-Jun-22 3.1 ND ND ND 20 22.3
14-Sep-22 4.3 ND ND ND 16.9 23.2
8-Dec-22 2.3 ND ND ND 18.1 16.2
(ug/1)
0 I-" N UJ ~ V, a, -.J 00 \.0 I-" 0
~:~=H l '1 I I I I I I I 1 I Jul-12''
Sep-12 Nov-12
Jan-13
Mar-13
May-13
Jul-13
Sep-13
Nov-13
Jan-14 Mar-14 •
May-14
Jul-14
Sep-14
Nov-14
Jan-15
Mar-15
May-15
Jul-15
Sep-15
Nov-15 .,
Jan-16 Mar-16 .,
May-16
Jul-16
Sep-16 Nov-16 -,
Jan-17 Mar-17 -,
May-17
Jul-17
Sep-17 Nov-17 -,
Jan-18
Mar-18 :
May-18 -
Jul-18
Sep-18 ..
Nov-18 : Jan-19 .,
Mar-19 ..
May-19 -Jul-19 .,
Sep-19
Nov-19 -
Jan-20
Mar-20
May-20
Jul-20
Sep-20
Nov-20
Jan-21 Mar-21 .
May-21
Jul-21
Sep-21
Nov-21
Jan-22
Mar-22
May-22
Jul-22
Sep-22
Nov-22
Jan-23 Mar-23 I 1
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3
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Ill
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-28 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (ue/1)
19-Jun-13 ND ND ND ND 14.9 44.6
29-Aug-13 ND ND ND ND 17.3 45.3
6-Nov-13 ND ND ND ND 16.2 45.2
22-Jan-14 ND ND ND ND 16.9 47.8
21-May-14 ND ND ND ND 16.5 45.7
13-Aug-14 ND ND ND ND 14.2 50
23-Oct-14 ND ND ND ND 16.5 52.1
1 l-Mar-15 ND ND ND ND 19 52.2
10-Jun-15 ND ND ND ND 19 56.4
2-Sep-15 ND ND ND ND 17.8 61.4
21 -Oct-15 ND ND ND ND 18.7 52.7
15-Mar-16 ND ND ND ND 34.0 61.6
25-May-J6 ND ND ND !\TD 29.0 67.1
27-Jul-16 ND ND ND ND 31.3 70.1
19-Oct-16 ND ND ND ND 25.5 70.9
14-Mar-17 ND ND ND ND 24.4 64.2
14-Jun-17 ND ND ND ND 26.0 68.6
27-Jul-17 ND ND ND ND 24.8 67.l
10-Oct-17 ND ND ND ND 24.8 57.4
14-Mar-18 ND ND ND ND 17.2 65.0
12-Jun-18 ND ND ND ND 19.0 55.7
29-Aug-18 ND ND ND ND 16.0 63.8
30-Nov-18 ND ND ND ND 17.7 52.4
16-Mar-19 ND ND ND ND 17.2 51.7
13-Jun-19 ND ND ND ND 15.0 51.8
11-Sep-19 ND ND ND ND 10.2 49.0
12-Dec-19 ND ND ND ND 9.48 50.0
17-Mar-20 ND ND ND ND 9.87 52.l
10-Jun-20 ND ND ND ND 9.55 49.8
17-Sep-20 ND ND ND ND 8.36 47.4
4-Nov-20 ND ND ND ND 7.76 49.0
17-Mar-21 ND ND ND ND 8.68 51.8
15-Jun-21 ND ND ND ND 9.09 48.5 ___;
15-Sep-21 ND ND ND ND 8.08 40.7
7-Dec-21 ND ND ND ND 7.06 47.8
15-Mar-22 ND ND ND ND 7.8 38.8
15-Jun-22 ND ND ND ND 15 52.3
13-Sep-22 ND ND ND ND 16.2 58.5
7-Dec-22 ND ND ND ND 16.6 52.0
Jun-13
Sep-13
Dec-13
Mar-14
Jun-14
Sep-14
Dec-14
Mar-15
Jun-15
Sep-15
Dec-15
Mar-16
Jun-16
Sep-16
Dec-16
Mar-17
Jun-17
Sep-17
Dec-17
Mar-18
Jun-18
Sep-18
Dec-18
Mar-19
Jun-19
Sep-19
Dec-19
Mar-20
Jun-20
Sep-20
Dec-20
Mar-21
Jun-21
Sep-21
Dec-21
Mar-22
Jun-22
Sep-22
Dec-22
Mar-23
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-29 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u1?/l) (u2'1)
19-Jun-13 242 ND ND ND 4.63 44.8
l 1-Jul-13 262 ND ND ND 3.52 37.7
26-Sep-13 246 ND ND ND 4.18 41.4
13-Nov-13 260 ND ND ND 4.11 42.5
5-Feb-14 258 ND ND ND 4.63 41.9
22-May-14 262 ND ND ND 3.52 38.2
27-Aug-14 242 ND ND ND 3.4 41
29-Oct-14 290 ND ND ND 3.64 41
12-Mar-15 299 ND ND ND 4.14 40.5
I l -Jun-15 329 ND ND ND 2.95 42.5
3-Sep-15 276 ND ND ND 2.19 47.3
29-Oct-15 631 ND ND ND 2.74 39.8
17-Mar-16 335 ND ND ND 2.92 40.3
8-Jun-16 366 ND ND ND 2.51 42.9
4-Aug-16 401 ND ND ND 2.44 40.6
26-Oct-16 392 ND ND ND 2.4 44.2
16-Mar-17 446 ND ND ND 2.24 41.5
21-Jun-17 420 ND ND ND 2.26 42.0
4-Aug-17 466 ND ND ND 2.35 42.9
11-Oct-17 466 ND ND ND 2.45 37.7
21-Mar-18 533 ND ND ND 2.44 43.1
14-Jun-18 474 ND ND ND 2.67 40.1
5-Sep-l 8 454 ND ND ND 2.52 45 .9
13-Dec-J 8 521 ND ND ND 2.50 40.9
20-Mar-19 507 ND ND ND 2.67 39.9
19-Jun-19 537 ND ND ND 2.56 39.4
12-Sep-19 549 ND ND ND 2.55 38.0
18-Dec-19 630 ND ND ND 2.58 44.8
18-Mar-20 652 ND ND ND 3.1 41.0
12-Jun-20 686 ND ND ND 3.18 42.2
19-Sep-20 621 ND ND ND 2.9 39.9
1 l-Nov-20 671 ND ND ND 327 40.8
24-Mar-21 577 ND ND ND 3.09 44.3
17-Jun-21 543 ND ND ND 3.59 40.0
23-Sep-21 602 ND ND ND 3.29 40.1
9-Dec-21 625 ND ND ND 2.39 38.7
23-Mar-22 624 ND ND ND 3.1 39.1
22-Jun-22 398 ND ND ND 2.9 41.5
15-Sep-22 591 ND ND ND 2.80 41.8
9-Dec-22 588 ND ND ND 2.69 41.3
Jun-13
Aug-13
Oct-13
Dec-13
Feb-14
Apr-14
Jun-14
Aug-14
Oct-14
Dec-14
Feb-15
Apr-15
Jun-15
Aug-15
Oct-15
Dec-15
Feb-16
Apr-16
Jun-16
Aug-16
Oct-16
Dec-16
Feb-17
Apr-17
Jun-17
Aug-17
Oct-17
Dec-17
Feb-18
Apr-18
Jun-18
Aug-18
Oct-18
Dec-18
Feb-19
Apr-19
Jun-19
Aug-19
Oct-19
Dec-19
Feb-20
Apr-20
Jun-20
Aug-20
Oct-20
Dec-20
Feb-21
Apr-21
Jun-21
Aug-21
Oct-21
Dec-21
Feb-22
Apr-22
Jun-22
Aug-22
Oct-22
Dec-22
0
....
0 0
N 0 0
w 0 0
(ug/1)
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ln 0 0
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-30 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwl) (uwl)
19-Jun-13 ND ND ND ND 0.948 36
29-Aug-13 ND ND ND ND 0.952 36.3
7-Nov-13 ND ND ND ND 1.24 35.9
23-Jan-14 ND ND ND ND 1.36 36
21-May-14 ND ND ND ND 1.44 31.99
13-Aug-14 ND ND ND ND 1.5 38
23-Oct-14 ND ND ND ND 1.84 37.1
l 1-Mar-15 1.65 ND ND ND 2.15 38.3
10-Jun-15 2.25 ND ND ND 1.75 40.3
3-Sep-15 3.27 ND ND ND 1.75 44.2
28-Oct-15 3.48 ND ND ND 1.86 37.8
17-Mar-16 5.16 ND ND ND 2.74 39.6
26-May-16 7.38 ND ND ND 2.04 40.2
3-Aug-16 6.79 ND ND ND 2.32 38.6
20-Oct-16 8.69 ND ND ND 2.51 41.3
15-Mar-17 13.6 ND ND ND 2.7 37.7
15-Jun-17 15.2 ND ND ND 2.95 37.8
3-Aug-17 15.7 ND ND ND 3.11 39.8
10-Oct-17 13.4 ND ND ND 2.58 34.9
15-Mar-18 16.4 ND ND ND 3.63 41.0
13-Jun-18 16.9 ND ND ND 3.93 37.4
30-Aug-18 19.8 ND ND ND 3.79 44.1
12-Dec-18 23.9 ND ND ND 3.70 35.5
16-Mar-19 25.3 ND ND ND 4.08 35.9
13-Jun-19 31.5 ND ND ND 4.13 27.2
11-Sep-l9 34.8 ND ND ND 3.62 34.5
18-Dec-19 44.9 ND ND ND 3.62 39.1
17-Mar-20 53.1 ND ND ND 3.85 37.5
12-Jun-20 65.4 ND ND ND 3.69 38.6
18-Sep-20 67.7 ND ND ND 3.49 35.0
11-Nov-20 82.8 ND ND ND 3.64 37.1
18-Mar-21 74.8 ND ND ND 3.54 37.6
17-Jun-21 78.7 ND ND ND 4.19 38.3
22-Sep-21 78.2 ND ND ND 2.60 23.5
8-Dec-21 81.2 ND ND ND 3.14 37.9
23-Mar-22 73.6 ND ND ND 3.0 35.1
22-Jun-22 70.8 ND ND ND 2.80 41.3
14-Sep-22 69.8 ND ND ND 2.61 30.5
9-Dec-22 60.5 ND ND ND 2.67 36.5
Jun-13
0
0
Sep-13
Dec-13
Mar-14 -·
Jun-14 •'
Sep-14 .,
Dec-14 -
Mar-15
Jun-15
Sep-15
Dec-15
Mar-16
Jun-16
Sep-16
Dec-16
Mar-17
Jun-17
Sep-17
Dec-17 •
Mar-1s ··
Jun-18 ·
Sep-18 ··
Dec-18 ·
Mar-19 ·
Jun-19 "
Sep-19
Dec-19 ··
Mar-20
Jun-20 •
Sep-20 ·
Dec-20 ··
Mar-21 ··
Jun-21
Sep-21 ·
Dec-21
Mar-22
Jun-22 ··
Sep-22
......
9
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-31 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2'1) (u2'1)
19-Jun-13 ND ND ND ND 1.26 28.4
5-Sep-13 ND ND ND ND I.I 29.4
7-Nov-13 ND ND ND ND 1.33 28
23-Jan-14 ND ND ND ND 1.32 28.5
21-May-14 ND ND ND ND 1.22 26.3
13-Aug-14 ND ND ND ND I.I 30
28-Oct-14 ND ND ND ND 1.23 30
ll-Mar-15 ND ND ND ND 1.33 30.6
10-Jun-15 ND ND ND ND 1.19 31.1
2-Sep-15 ND ND ND ND 0.916 30.4
21-Oct-15 ND ND ND ND 0.953 29.1
16-Mar-16 ND ND ND ND 1.84 31.5
25-May-16 ND ND ND ND 1.36 32.5
28-Jul-16 ND ND ND ND 1.41 30.6
20-Oct-16 ND ND ND ND 1.14 34.0
15-Mar-17 ND ND ND ND 1.19 31.3
15-Jun-17 ND ND ND ND 1.21 33.4
2-Aug-17 ND ND ND ND 1.11 33.0
10-Oct-17 ND ND ND ND 1.04 30.9
14-Mar-18 ND ND ND ND 0.916 38.8
12-Jun-18 ND ND ND ND 0.948 34.4
29-Aug-18 ND ND ND ND 0.710 40.3
12-Dec-18 ND ND ND ND 0.766 35.2
16-Mar-19 ND ND ND ND 0.754 35.0
13-Jun-19 ND ND ND ND 0.713 36.9
ll-Sep-19 ND ND ND ND 0.610 35.8
14-Dec-19 ND ND ND ND 0.583 40.6
17-Mar-20 ND ND ND ND 0.572 38.2
11-Jun-20 ND ND ND ND 0.569 36.7
17-Sep-20 ND ND ND ND 0.507 36.5
4-Nov-20 ND ND ND ND 0.501 36.4
17-Mar-21 ND ND ND ND 0.501 40.3
16-Jun-21 ND ND ND ND 0.451 37.9
15-Sep-21 ND ND ND ND 0.461 31.2
8-Dec-21 ND ND ND ND 0.339 40.3
16-Mar-22 ND ND ND ND 0.4 34.8
16-Jun-22 ND ND ND ND 0.41 35.5
13-Sep-22 ND ND ND ND 0.396 40.0
7-Dec-22 ND ND ND ND 0.410 31.8
Jun-13
Sep-13
Dec-13
Mar-14
Jun-14
Sep-14
Dec-14
Mar-15
Jun-15
Sep-15
Dec-15
Mar-16
Jun-16
Sep-16
Dec-16
Mar-17
Jun-17
Sep-17
Dec-17
Mar-18
Jun-18
Sep-18
Dec-18
Mar-19
Jun-19
Sep-19
Dec-19
Mar-20
Jun-20
Sep-20
Dec-20
Mar-21
Jun-21
Sep-21
Dec-21
Mar-22
Jun-22
Sep-22
Dec-22
Mar-23
0
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-32 Tetrachloride (ug/1) (ul!fl) (ug/1) Chloride (ug/1) (mg/I) (mg/I)
14-Nov-13 ND ND ND ND 4.26 52.1
22-Jan-14 ND ND ND ND 5.11 54.5
21-May-14 ND ND ND ND 5.63 54.9
13-Aug-14 ND ND ND ND 4.2 64
23-Oct-14 ND ND ND ND 2.14 62.6
l l-Mar-15 ND ND ND ND 2.46 64.2
10-Jun-15 ND ND ND ND 1.21 62.7
2-Sep-15 ND ND ND ND 5.09 59.6
21-Oct-15 ND ND ND ND 1.19 55.1
15-Mar-16 ND ND ND ND 4.48 64.2
25-May-16 ND ND ND ND 3.16 71.8
28-Jul-16 ND ND ND ND 3.44 64.4
19-Oct-16 ND ND ND ND 2.87 66.0
14-Mar-17 ND ND ND ND 2.82 62.8
15-Jun-17 ND ND ND ND 2.37 53.5
2-Aug-17 ND ND ND ND 2.47 65.8
10-Oct-l 7 ND ND ND ND 2.54 58.3
14-Mar-18 ND ND ND ND 2.94 65.4
12-Jun-18 ND ND ND ND 2.51 59.2
29-Aug-18 ND ND ND ND 2.56 68.1
30-Nov-18 ND ND ND ND 2.50 57.5
16-Mar-19 ND ND ND ND 2.15 57.5
13-Jun-19 ND ND ND ND 2.18 60.1
ll-Sep-19 ND ND ND ND l.84 55.0
14-Dec-19 ND ND ND ND 1.89 64.7
· 17-Mar-20 ND ND ND ND 1.97 59.7
10-Jun-20 ND ND ND ND 2.19 57.0
17-Sep-20 ND ND ND ND 1.58 50.8
4-Nov-20 ND ND ND ND l.74 53.7
17-Mar-21 ND ND ND ND 1.80 60.5
15-Jun-21 ND ND ND ND 2.31 40.4
15-Sep-21 ND ND ND ND 1.57 46.1
7-Dec-21 ND ND ND ND 1.34 55.0
16-Mar-22 ND ND ND ND 1.8 48.0
15-Jun-22 ND ND ND ND 1.2 49.4
13-Sep-22 ND ND ND ND 1.59 51.8
7-Dec-22 ND ND ND ND 1.68 48.4
Nov-13
Feb-14
May-14
Aug-14
Nov-14
Feb-15
May-15
Aug-15
Nov-15
Feb-16
May-16
Aug-16
Nov-16
Feb-17
May-17
Aug-17
Nov-17
Feb-18
May-18
Aug-18
Nov-18
Feb-19
May-19
Aug-19
Nov-19
Feb-20
May-20
Aug-20
Nov-20
Feb-21
May-21
Aug-21
Nov-21
Feb-22
May-22
Aug-22
Nov-22
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-33 Tetrachloride (ug/1) (ue/1) (ug/1) Chloride ( ug/1) (mg/I) (mg/I)
14-Nov-13 126 ND ND ND 1.82 47.2
30-Jan-14 124 ND ND ND 2.56 43.5
22-May-14 121 ND ND ND 1.63 46.8
27-Aug-14 104 ND ND ND 1.5 43
29-Oct-14 124 ND ND ND 2.22 44.2
12-Mar-15 134 ND ND ND 1.91 44.2
I 1-Jun-15 127 ND ND ND I.62 46.4
3-Sep-15 123 ND ND ND 1.64 53.4
29-Oct-15 129 ND ND ND 1.92 44.5
17-Mar-16 122 ND ND ND 2.13 46.2
8-Jun-1 6 96 ND ND ND 2.06 49.7
4-Aug-16 121 ND ND ND 2.32 48.5
26-Oct-16 109 ND ND ND 2.36 52.4
16-Mar-17 91 ND ND ND 2.11 49.0
20-Jun-17 103 ND ND ND 2.34 49.2
3-Aug-17 127 ND ND ND 2.04 46.9
1 l-Oct-17 97.1 ND ND ND 2.09 42.5
15-Mar-18 128 ND ND ND 1.94 49.2
13-Jun-1 8 88 ND ND ND 2.13 44.0
5-Sep-18 113 ND ND ND 1.82 50.0
13-Dec-18 141 ND ND ND 2.01 43.2
20-Mar-19 86.2 ND ND ND 2.00 47.2
19-Jun-19 121 ND ND ND 2.16 43.4
12-Sep-19 101 ND ND ND 1.61 41.1
18-Dec-19 117 ND ND ND 1.86 48.8
18-Mar-20 94 ND ND ND 2.44 45.3
12-Jun-20 90 ND ND ND 3.26 48.9
18~Sep-20 85 ND ND ND 3.58 51.0
l l-Nov-20 80.6 ND ND ND 3.71 51.5
18-Mar-21 64.9 ND ND ND 4.62 55.6
17-Jun-21 63.9 ND ND ND 6.25 54.7
22-Sep-21 60.2 ND ND ND 4.33 42.5
8-Dec-21 68.9 ND ND ND 4.65 53.8
---..l 23-Mar-22 53.1 ND ND ND 3.8 51.4
22-Jun-22 58.7 ND ND ND 3.7 56.7
14-Sep-22 53.9 ND ND ND 3.90 42.2
9-Dec-22 50.5 ND ND ND 3.52 45.1
0
Nov-13
Feb-14
May-14
Aug-14
Nov-14
Feb-15
May-15
Aug-15
Nov-15
Feb-16
May-16 .
Aug-16
Nov-16
Feb-17
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Nov-17
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Feb-22
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-34 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uw)) (owl)
14-Nov-13 ND ND 1, ND ND 1.64 19.2
23-Jan-14 ND ND ND ND 1.94 20.4
21 -May-14 ND ND ND ND 1.69 17.9
13-Aug-14 ND ND ND ND I.I 18
28-Oct-14 ND ND ND ND 1.16 17.5
ll-Mar-15 ND ND ND ND 1.21 17.7
10-Jun-15 ND ND ND ND 0.868 17.4
3-Sep-15 ND ND ND ND 0.458 15.1
21-Oct-15 ND ND ND ND 0.368 15.8
16-Mar-16 ND ND ND ND 0.925 17.3
26-May-16 ND ND ND ND 0.605 18
26-May-16 ND ND ND ND 0.605 18
3-Aug-16 ND ND ND ND 0.726 17.2
20-Oct-16 ND ND ND ND 0.61 2 19.0
15-Mar-17 ND ND ND ND 0.674 18.0
15-Jun-17 ND ND ND ND 0.727 15.7
2-Aug-17 ND ND ND ND 0.733 19.8
10-Oct-17 ND ND ND ND 0.774 18.5
14-Mar-18 ND ND ND ND 0.737 19.1
13-Jun-18 ND ND ND ND 0.877 19.5
29-Aug-18 ND ND ND ND 0.736 23.8
12-Dec-18 ND ND ND ND 0.889 18.5
16-Mar-19 ND ND ND ND 0.859 17.9
13-Jun-19 ND ND ND ND 0.994 20.1
11-Sep-19 ND ND ND ND 0.934 17.8
14-Dee-19 ND ND ND ND 1.07 21.4
17-Mar-20 ND ND ND ND 1.09 20.1
1 l-Jun-20 ND ND ND ND 1.24 20.9
17-Sep-20 ND ND ND ND 0.978 19.0
4-Nov-20 ND ND ND ND 1.04 18.7
17-Mar-21 ND ND ND ND 10.9 19.3
16-Jun-21 ND ND ND ND 1.08 17.8
15-Sep-21 ND ND ND ND I.I 15.0
--l 8-Dec-21 ND ND ND ND 1.02 19.6
16-Mar-22 ND ND ND ND 1.0 17.3
16-Jun-22 ND ND ND ND 1.0 19.5
14-Sep-22 J.2 ND ND ND 0.788 18.8
8-Dec-22 ND ND ND ND 1.16 17.0
Nov-13
Feb-14
May-14
Aug-14
Nov-14
Feb-15
May-15
Aug-15
Nov-15
Feb-16
May-16
Aug-16
Nov-16
Feb-17
May-17
Aug-17
Nov-17
Feb-18
May-18
Aug-18
Nov-18
Feb-19
May-19
Aug-19
Nov-19
Feb-20
May-20
Aug-20
Nov-20
Feb-21
May-21
Aug-21
Nov-21
Feb-22
May-22
Aug-22
Nov-22
Feb-23
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-35 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2'1) (u2'1)
27-Aug-14 ND ND ND ND 0.2 34
28-Oct-14 ND ND ND ND 0.351 34.1
ll-Mar-15 ND ND ND ND 0.436 34.9
10-Jun-15 ND ND ND ND 0.452 35.2
3-Sep-15 ND ND ND ND 0.304 35.9
28-Oct-15 ND ND ND ND 0.419 33.4
16-Mar-16 ND ND ND ND 0.521 35.4
26-May-16 ND ND ND ND 0.631 35.4
3-Aug-16 ND ND ND ND 0.723 34.8
20-Oct-16 ND ND ND ND 0.626 37.1
15-Mar-17 ND ND ND ND 0.673 33.7
15-Jun-17 ND ND ND ND 0.699 34.8
2-Aug-17 ND ND ND ND 0.670 36.3
10-Oct-17 ND ND ND ND 0.651 31.7
14-Mar-18 ND ND ND ND 0.740 37.4
13-Jun-18 ND ND ND ND 0.662 33 .7
30-Aug-18 ND ND ND ND 0.527 39.3
12-Dec-18 ND ND ND ND 0.559 43.0
16-Mar-19 ND ND ND ND 0.574 33.5
13-Jun-19 ND ND ND ND 0.670 35.5
I 1-Sep-19 ND ND ND ND 0.525 31.7
14-Dec-19 ND ND ND ND 0.524 37.4
17-Mar-20 ND ND ND ND 0.595 34.5
11-Jun-20 ND ND ND ND 0.699 34.0
17-Sep-20 ND ND ND ND 0.760 32.2
4-Nov-20 ND ND ND ND 0.756 30.4
17-Mar-21 ND ND ND ND 0.991 35 .6
16-Jun-21 ND ND ND ND 1.01 34.l
15-Sep-21 ND ND ND ND 1.20 27.5
8-Dec-21 ND ND ND ND 1.23 34.3
22-Mar-22 ND ND ND ND 1.5 27.8
16-Jun-22 ND ND ND ND 1.6 31.2
14-Sep-22 ND ND ND ND 1.61 34.4
7-Dec-22 ND ND ND ND 1.79 27.4
Aug-14
Nov-14
Feb-15
May-15
Aug-15
Nov-15
Feb-16
May-16
Aug-16
Nov-16
Feb-17
May-17
Aug-17
Nov-17
Feb-18
May-18
Aug-18
Nov-18
Feb-19
May-19
Aug-19
Nov-19
Feb-20
May-20
Aug-20
Nov-20
Feb-21
May-21
Aug-21
Nov-21
Feb-22
May-22
Aug-22
Nov-22
Feb-23
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-36 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uldl) (u,v'l)
27-Aug-14 ND ND ND ND ND 65
23-Oct-14 ND ND ND ND ND 67.3
11-Mar-15 ND ND ND ND ND 67.2
10-Jun-l 5 ND ND ND ND ND 69.3
3-Sep-15 ND ND ND ND ND 76.4
21-Oct-15 ND ND ND ND ND 64.5
16-Mar-16 ND ND ND ND ND 67.l
25-May-16 ND ND ND ND ND 72.3
27-JuJ-16 ND ND ND ND ND 69.4
20-Oct-16 ND ND ND ND ND 73.8
15-Mar-17 ND ND ND ND ND 60.2
15-Jun-17 ND ND ND ND ND 71.3
2-Aug-17 ND ND ND ND ND 69.6
10-Oct-17 ND ND ND ND 0.104 62.9
14-Mar-18 ND ND ND ND ND 73.8
12-Jun-1 8 ND ND ND ND ND 64.3
29-Aug-18 ND ND ND ND ND 76.4
12-Dec-1 8 ND ND ND ND 0.123 65.8
16-Mar-19 ND ND ND ND 0.116 65.0
13-Jun-19 ND ND ND ND ND 71.5
l 1-Sep-19 ND ND ND ND ND 69.6
14-Dec-19 ND ND ND ND ND 73.7
17-Mar-20 ND ND ND ND ND 69.1
ll-Juo-20 ND ND ND ND ND 67.0
17-Sep-20 ND ND ND ND ND 66.0
4-Nov-20 ND ND ND ND ND 64.0
17-Mar-21 ND ND ND ND ND 72.5
16-Jun-21 ND ND ND ND ND 68.7
15-Sep-21 ND ND ND ND ND 63.l
8-Dec-21 ND ND ND ND ND 69.9
l.6-Mar-22 ND ND ND ND 0.1 61.2
15-Jun-22 ND ND ND ND ND 68.8
13-Sep-22 ND ND ND ND ND 69.3
7-Dec-22 ND ND ND ND 0.100 59.7
Aug-14
Nov-14
Feb-15
May-15
Aug-15
Nov-15
Feb-16
May-16
Aug-16
Nov-16
Feb-17
May-17
Aug-17
Nov-17
Feb-18
May-18
Aug-18
Nov-18
Feb-19
May-19
Aug-19
Nov-19
Feb-20
May-20
Aug-20
Nov-20
Feb-21
May-21
Aug-21
Nov-21
Feb-22
May-22
Aug-22
Nov-22
Feb-23
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-37 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/l) (ui!/1)
8-Jun-15 30200 18 16 2 35 345
31-Aug-15 19100 17 14 1.04 32 374
19-Oct-15 19500 13 9 1.17 35 399
9-Mar-16 17500 16 4 1.34 28.4 332
23-May-16 16200 14 ND 1.17 27.9 389
25-Jul-16 15900 17 ND ND 33.4 294
12-Oct-16 16400 16 ND ND 26.1 304
8-Mar-17 18000 15 ND ND 32.3 305
13-Jun-l 7 15800 16 ND ND 31.2 281
26-Jul-17 15000 15.l ND ND 30.5 277
ll-Oct-17 15500 12.6 2.47 ND 30.6 255
12-Mar-18 12900 12.8 1.14 ND 30.0 263
8-Jun-18 14400 10.6 ND ND 28.6 275
22-Aug-18 14100 12.1 6.20 ND 25.4 387
28-Nov-18 15200 11.3 19.8 ND 27.3 264
8-Mar-19 13300 13.8 1.2 ND 30.1 209
5-Jun-19 16200 14.6 ND ND 31.2 250
4-Sep-19 11900 10.7 1.90 ND 25.8 228
10-Dec-19 13100 8.8 3.12 ND 25.5 220
19-Feb-20 12000 8.5 12.30 ND 28.3 236
27-May-20 11700 11 .8 1.44 ND 28.3 321
4-Sep-20 13800 9.6 ND ND 29.5 273
28-Oct-20 10300 6.5 29.40 ND 28.7 254
23-Feb-21 9380 ND ND ND 26.9 242
9-Jun-21 13000 8.46 1.98 ND 26.6 176
24-Aug-21 10200 7.65 ND ND 25.8 220
l-Dec-21 14800 11.50 6.70 5.05 31.3 410
9-Mar-22 13700 12.20 ND ND 29.8 414
8-Jun-22 46800 8.2 12.0 ND 28 267
30-Aug-22 11600 5.4 2.4 ND 26.6 243
30-Nov-22 9640 5.7 ND ND 30.9 578
Jun-15
Sep-15
Dec-15
Mar-16
Jun-16
Sep-16
Dec-16
Mar-17
Jun-17
Sep-17
Dec-17
Mar-18
Jun-18
Sep-18
Dec-18
Mar-19
Jun-19
Sep-19
Dec-19
Mar-20
Jun-20
Sep-20
Dec-20
Mar-21
Jun-21
Sep-21
Dec-21
Mar-22
Jun-22
Sep-22
Dec-22
Mar-23
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-38 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (udl) (u21))
10-Nov-1 6 ND ND ND ND 11.2 40.0
15-Mar-17 ND ND ND ND 10.6 35.7
15-Jun-17 ND ND ND ND 10.8 36.2
2-Aug-17 ND ND ND ND 10.1 36.9
10-Oct-17 ND ND ND ND 10.3 31.3
14-Mar-18 ND ND ND ND 9 .34 36.5
13-Jun-18 ND ND ND ND 9.48 33.1
30-Aug-18 ND ND ND ND 7.77 39.2
12-Dec-1 8 ND ND ND ND 8.48 35.0
16-Mar-19 ND ND ND ND 8.96 33.5
13-Jun-19 ND ND ND ND 8.53 33.7
ll-Sep-19 ND ND ND ND 7.61 31.6
14-Dec-19 ND ND ND ND 7.51 36.0
17-Mar-20 ND ND ND ND 8.11 33.4
1 l-Jun-20 ND ND ND ND 9.00 34.9
18-Sep-20 ND ND ND ND 7.35 34.7
4-Nov-20 ND ND ND ND 7.72 35.1
18-Mar-21 ND ND ND ND 8.24 37.2
16-Jun-21 ND ND ND ND 9.59 37.7
15-Sep-21 ND ND ND ND 8.04 32.1
8-Dec-21 ND ND ND ND 8.02 35.8
22-Mar-22 ND ND ND ND 7.7 32.7
16-Jun-22 ND ND ND ND 7.9 37.3
14-Sep-22 ND ND ND ND 7.57 32.9
7-Dec-22 ND ND ND ND 8.90 36.4
0
Nov-16
Feb-17
May-17
Aug-17
Nov-17
Feb-18
May-18
Aug-18
Nov-18
Feb-19
May-19
Aug-19
Nov-19
Feb-20
May-20
Aug-20
Nov-20
Feb-21
May-21
Aug-21
Nov-21
Feb-22
May-22
Aug-22
Nov-22
Feb-23
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-39 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (ue/1)
10-Nov-]6 2800 ND ND ND 20.7 68.9
8-Mar-17 6460 8.15 ND 1.35 6.44 130
13-Jun-17 5560 8.20 ND 1.31 6.25 120
26-Jul-17 10000 l4.40 ND 1.50 7.74 132
l l-Oct-17 552 ND ND ND 2.65 73.5
12-Mar-18 2870 3.10 ND ND 3.33 118
8-Jun-18 7160 7.94 ND ND 4.84 107
22-Aug-18 8180 12.50 2.33 ND 6.05 110
28-Nov-18 6520 6.08 ND ND 6.39 123
8-Mar-19 885 1.20 ND ND 2.08 49.0
5-Jun-19 8640 11.60 ND ND 8.45 114.0
4-Sep-19 4240 5.71 ND ND 1.75 48.2
10-Dec-19 1650 1.14 ND ND 0.948 74.7
19-Feb-20 812 ND ND ND 0.792 76.5
27-May-20 5870 7.56 ND ND 5.01 88.5
4-Sep-20 5960 8.18 ND ND 2.69 63.2
28-Oct-20 648 ND 1.19 ND 7.03 83.2
23-Feb-21 2970 ND ND ND 2.12 53.0
9-Jun-21 2490 2.92 ND ND 12.0 123.0
24-Aug-21 858 ND ND ND 2.70 78.7
1-Dec-21 776 ND ND ND 2.33 82.4
9-Mar-22 724 ND ND ND 2.9 75.2
8-Jun-22 982 ND 1.4 ND 9.0 76.8
30-Aug-22 843 ND ND ND 3.72 85.2
30-Nov-22 1720 1.20 ND ND 7.86 80.6
0
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Nov-16 +-----+----...,,--+-----!--.-----1---------J------l
Feb-17
May-17 -:
Aug-17
Nov-17 -
Feb-18
May-18
Aug-18
Nov-18
Feb-19
May-19 -
Aug-19 7
Nov-19
Feb-20
May-20
Aug-20 .,
Nov-20 1
Feb-21
May-21
Aug-21
Nov-21
Feb-22
May-22
Aug-22
Nov-22
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Chloroform CarbQn Chloromethane Methylene Nitrate Chloride TW4-40 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uP-IH (up/I)
21-Mar-18 248 ND ND ND 3.08 35.7
14-Jun-18 131 ND ND ND 3.33 31.6
5-Sep-18 116 ND ND ND 3.22 37.6
13-Dec-18 118 ND ND ND 3.54 29.9
20-Mar-19 111 ND ND ND 3.)8 30.9
5-Jun-19 263 ND ND ND 3.55 35.6
4-Sep-19 380 ND ND ND 3.39 35.9
10-Dec-19 314 ND ND ND 2.89 36.7
19-Feb-20 364 ND ND ND 2.98 38.5
27-May-20 367 ND ND ND 2.91 36.5
4-Sep-20 333 ND ND ND 2.88 34.2
28-Oct-20 264 ND ND ND 2.58 34.6
23-Feb-21 436 ND 3.51 ND 2.43 36.0
9-Jun-21 343 ND ND ND 3.77 27.5
24-Aug-21 301 ND 1.32 ND 1.50 31.8
1-Dec-21 286 ND ND ND 2.60 38.4
9-Mar-22 238 ND ND ND 2.5 38.4
8-Jun-22 323 ND ND ND 1.9 36.6
30-Aug-22 302 ND ND ND 2.22 39.3
30-Nov-22 298 ND ND ND 2.24 44.8
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.2 .c 0
0 ..::t' I ..::t' 3: t-
,------,---~---,----,------,---~---r----,------.----,-8G-JBV'J-9 ~
-~G-uer-v
0G-unr-8~
6~-oaa-~
· 6 ~ -ABV\J-9 ~
1------+--+----+----+---+---+---1---+-----i----+ L ~ -daS-GG
0 0 LO
0 0 s:;t"
0 LO Ct)
0 0 Ct)
0 LO C\J
(7J6n)
0 0 C\J
0 LO 0 0 ,-
0 LO 0
Chloroform Carbon Chloromethane Methylene Chloride TW4-41 {ug/1) Tetrachloride (ug/1) Chloride Nitrate (mg/I) (mg/I) (uwl) (owl)
9-May-18 1400 ND ND ND 6.54 42.8
22-Aug-18 1390 ND ND ND 6.13 45.5
28-Nov-18 1320 ND ND ND 6.02 41.4
8-Mar-19 1220 ND ND ND 6.71 39.1
5-Jun-19 1320 ND ND ND 6.00 38.9
4-Sep-19 1190 ND ND ND 6.22 39.4
10-Dec-19 1410 ND ND ND 6.11 42.1
19-Feb-20 1200 ND ND ND 6.12 44.4
27-May-20 1220 ND ND ND 6.78 41.7
4-Sep-20 1110 ND ND ND 6.69 40.2
28-Oct-20 1020 ND ND ND 6.25 39.7
23-Feb-21 1170 ND ND ND 6.41 40.6
9-Jun-21 1130 ND ND ND 7.45 39.3
24-Aug-21 1100 ND ND ND 3.77 37.1
1-Dec-21 1030 ND ND ND 6.72 43.2
9-Mar-22 1030 ND ND ND 6.2 37.3
8-Jun-22 1010 ND ND ND 6.0 41.1
30-Aug-22 1060 ND ND ND 5.92 41.9
30-Nov-22 1050 ND ND ND 6.00 38.0
(ug/L) ----I\) ~ 0) CXl 0 I\) ~ 0)
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
22-Sep-17
10-Apr-18 -
27-Oct-18
15-May-19
-1 I I I I I/ I I -4 :e .,::..
I .,::.. _,,
1-Dec-19 ·I I I I I I I / ":I. I (") :::r
0 ""I 0 -0 ""I
18-Jun-20 i I I I fi I 3
< m
C
(I)
0 1 I I I I I "-. / I I I 4-Jan-21
23-Jul-21
8-Feb-22
27-Aug-22
15-Mar-23 ..l...-----'------'----.,__ __ _._ __ ---1.. ___ ,__ __ _.__ __ __,
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-42 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2'1) (u2'1)
19-Jun-19 ND ND ND ND 2.57 23.3
11-Sep-19 ND ND ND ND 2.75 20.6
12-Dec-19 ND ND ND ND 2.82 22.6
17-Mar-20 ND ND ND ND 2.88 23.2
10-Jun-20 ND ND ND ND 3.23 23.1
17-Sep-20 ND ND ND ND 3.65 23.5
4-Nov-20 ND ND ND ND 2.77 22.4
17-Mar-21 ND ND ND ND 3.15 24.2
15-Jun-21 ND ND ND ND 3.57 24.6
15-Sep-21 ND ND ND ND 3.26 16.6
7-Dec-21 ND ND ND ND 2.02 24.2
15-Mar-22 ND ND ND ND 2.5 21.5
15-Jun-22 ND ND ND ND 3.3 24.0
30-Aug-22 ND ND ND ND 3.03 22.8
7-Dec-22 ND ND ND ND 3.30 15.6
0 Cl) :::,
ca >
E ...
0 e
.2 .c 0
N -.:I' I ;
~
' 0 0 0
(7J6n)
..
◄~
◄~
◄~
.
◄~
◄
◄~
..
◄
◄
◄• 02:-unr-a~
•
'
'
••
.
0 0
Chloroform Carbon Chloromethane Methylene Chloride TW4-43 (ug/1) Tetrachloride (ug/1) Chloride Nitrate (mg/I) (mg/I) (uwl) (uwl)
9-Dec-21 ND ND ND ND 0.118 40.6
16-Mar-22 ND ND ND ND 0.4 39.2
16-Jun-22 ND ND ND ND 0.24 41.8
13-Sep-22 ND ND ND ND 0.383 43.1
7-Dec-22 ND ND ND ND 0.383 40.7
.-----.-----,---....---,---r-----.-----.---~--------.--.-Ec-JBV\1-Z I
·•
U) • Zc-ABV\1-9 Cl)
.2
CIS >
E •• .. 0 -zz-qa.:1-s 0 ..
.2 .c
0 •►
C")
-.::I' I ._ ~z-100-sc: -.::I' 3: I-
I---+--+---+---+--+--+--+----'~--!---!-~z-uer-~
..-..-0 0 0 0 0
(7J6n)
TabL
Contour Map Based Chloroform Plume Mass Calculations and Data over Time
TABLE L.1
Chloroform Plume Residual Mass
Since Third Quarter 2015
Residual
Plume Mass
Quarter (lbs)
0315 1712
0415 1869
01 16 1946
0216 2261
0316 1718
0416 1711
01 17 1271
0217 1372
0317 1948
0417 884
0118 1271
0218 1271
0318 1208
0418 1107
01 19 833
0219 1408
0319 1050
0419 770
01 20 1106
0220 1056
0320 909
0420 715
01 21 1273
02 21 784
03 21 933
04 21 981
01 22 711
0222 1124
0322 850
0422 893
Notes:
lbs= pounds
https://hgcinc.sharepoint.com/VOL4/718000/feb23/chloroform/masscalc/FL.l_resid_chl_mass_ 4Q22.xls: Table L.1
g
QI ... Ill E · .. "' w
"' "' Ill :E
E ... .E 0 ... 0 :E u
ni :I "0 'iii QI a:
2400
2200
2000
1800
1600
1400
1200
1000
800
600
400
200
0
~~~~~~~~~~~~~~~~~~~~~~~~~~&&&& w~~~~~&~w~~~~~&~w~~~~~&~w~~~~~&~w~~~~~&~w~~~~~&~w~~~~~&~w~~~
~ mass estimate
--Linear (mass estimate]
HYDRO
GEO
CHEM,INC.
TIME SERIES OF RESIDUAL CHLOROFORM MASS
ESTIMATES
Approved I Date
SJS
Author I Date
SJS
File Name !Figure
MassEstllmeSarle■,)llS L.1
https://hgcinc.sharepoint.comNOL4/71 BOOO/feb23/chloroform/masscalc/FL.1_resid_chL mass_ 4022.xls: FL.1 Resid CHL Mass
CHLOROFORM RESIDUAL MASS ESTIMATE DETAILS:
Chloroform Data File: CHL_Surferlnput_Q4_22.xls
Gridding details:
1) kriging parameters: SURFER™ default parameters (point kriging, linear
variogram, slope = 1, no anisotropy [ anisotropy = 1 ], no search constraints [ all data
used])
2) minx, max x (UTME[m]): 631900, 633043
3) min y, may y (UTMN[m]): 4154240, 4155550.64
4) grid spacing in x, y (m): 15.24, 15.24
5) artificial or pseudo-data: none
6) Q3, 2022 (previous quarter) data used at wells: none.
Chloroform residual mass estimate kriged grid files (ascii format):
Ucm4Q22wl.grd: fourth quarter, 2022 Water Level Grid (ft amsl)
Ucm4Q22bb.grd: fourth quarter, 2022 Aquifer Base Grid (ft amsl)
Ucm4Q22sat.grd: fourth quarter, 2022 Saturated Thickness Grid (ft)
Ucm4Q22logchl.grd: fourth quarter, 2022 log of chloroform grid (log of ug/L)
Ucm4Q22chl.grd: fourth quarter, 2022 Chloroform Concentration Grid (ug/L)
Ucm4Q22ge70.grd: fourth quarter, 2022 Chloroform Concentration GE 70 Grid (ug/L)
Ucm4Q22volm3.grd: fourth quarter, 2022 Groundwater Volume Grid (m3)
Ucm4Q22masslb.grd: fourth quarter, 2022 Chloroform Plume Mass Grid (lb)
Chloroform residual mass estimate kriged grid XYZ files (ascii format):
Ucm4Q22wl.dat: fourth quarter, 2022 Water Level Grid XYZ file (ft amsl)
Ucm4Q22bb.dat: fourth quarter, 2022 top of Aquifer Base Grid XYZ file (ft amsl)
Ucm4Q22sat.dat: fourth quarter, 2022 Saturated Thickness-Grid XYZ file (ft)
Ucm4Q22logchl.dat: fourth quarter, 2022 log of chloroform grid XYZ file (log ofug/L)
Ucm4Q22chl.dat: fourth quarter, 2022 Chloroform Concentration Grid XYZ file (ug/L)
Ucm4Q22ge70.dat: fourth quarter, 2022 Chloroform Concentration GE 70 Grid (ug/L)
XYZ file
Ucm4Q22volm3.dat: fourth quarter, 2022 Groundwater Volume Grid XYZ file (m3)
Ucm4Q22masslb.dat: fourth quarter, 2022 Chloroform Plume Mass Grid XYZ file (lb)
Chloroform plume mass estimate file: Ucm4Q22result.xls
TabM
CSV Transmittal Letter
Jordan Christine App
From:
Sent:
To:
Cc:
Subject:
Attachments:
Dear Mr. Goble,
Jordan Christine App
Thursday, February 23, 2023 10:48 AM
Phillip Goble
'Dean Henderson'; David Frydenlund; Scott Bakken; Garrin Palmer; Logan Shumway;
Dawn Kolkman; Kathy Weinel
Transmittal of CSV Files White Mesa Mill 2022 Q4 Chloroform Monitoring
22L0202 FINAL EnergyFuels.csv; 22L0766 FINAL EnergyFuels.csv; 22L 1102 FINAL
EnergyFuels.csv; Q2 2022 Chloroform Field Data.csv; Q4 2022 DTW all programs.csv
Attached to this e-mail is an electronic copy of laboratory results for Chloroform monitoring conducted at the White
Mesa Mill during the fourth quarter of 2022, in Comma Separated Value (CSV) format.
Please contact me at 303-389-4131 if you have any questions on this transmittal.
Yours Truly
Jordan App
eF ,_ '"Wl. Energy Fuels Resources (USA) Inc.
Jordan Christine App
Environmental Scientist
[e-mail]
http://www.energyfuels.com
This e-mail is intended for the exclusive use of person(s) mentioned as the recipient(s). This message and any attached files with it are confidential and may
contain privileged or proprietary information. If you are not the intended recipient(s) please delete this message and notify the sender. You may not use, distribute
print or copy this message if you are not the intended recipient(s).
1
TabN
Exceedance Notices for the Reporting Period
This attachment has been deliberately left blank.