DRC-2022-020020 - 0901a068810cdd52

August 8, 2022
Sent VIA EXPEDITED DELIVERY
Ms. 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 2nd 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 2nd 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,
fdX!f Jv,~
ENERGY FUELS RESOURCES (USA) INC.
Kathy W einel
Director, Regulatory Compliance
CC: David Frydenlund
Logan Shumway
Scott Bakken
Garrin Palmer
DRC-2022-020020
White Mesa Uranium Mill
Chloroform Monitoring Report
State of Utah
Stipulation and Consent Order Docket No. UGW-20-01
(April through June)
2022
Prepared by:
Energy Fuels Resources (USA) Inc.
225 Union Boulevard, Suite 600
Lakewood, CO 80228
August 8, 2022
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 ............................................................................................................ 6
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 ................................................................................................... 8
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 ....................................................................... 13
4.1 Interpretation of Groundwater Levels, Gradients and Flow Directions ........... 13
4.1.1 Current Site Groundwater Contour Map ................................................... 13
4.1.2 Comparison of Current Groundwater Contour Maps to Groundwater
Contour Maps for Previous Quarter. ........................................................ 20
4.1.3 Hydrographs .............................................................................................. 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 lsoconcentration Map .............................................. 26
4.2.2 Chloroform Concentration Trend Data and Graphs .................................. 26
4.2.3 Interpretation of Analytical Data .............................................................. 26
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
5.4.1 TW4-41 ............................................................................................................ 32
5.4.2 TW4-19 ............................................................................................................ 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 ..................................... 34
7.0 CURRENT COMPLIANCE STATUS ............................................................. 34
7 .1 Long Term Chloroform Plume Control ............................................................ 34
7.2 Well Construction, Maintenance and Operation ............................................... 35
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
ii
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 Hydro graphs 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
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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 an effort to expedite and formalize active and continued remediation of the
chloroform plume, both patties 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 second quarter of 2022 as required
under the SCO. This report also includes the Operations Report for MW-04, TW4-0l, TW4-04,
TW4-02, TW4-11, TW4-19, TW4-21, MW-26, TW4-22, TW4-24, TW4-25, TW4-37, TW4-39,
TW 4-40, and TW 4-41 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
TW4-1 TW4-10 TW4-19 TW4-29 TW4-38
TW4-2 TW4-11 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 TW4-17) TW4-27 TW4-36
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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-3, 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;
3
d) the DI water solution is pumped through the pump and pump outlet lines;
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,
specific 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
4
(9 -10 gpm pump) is then lowered to the screened interval in the well and purging is started.
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.
5
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.
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 H of this Report. Also included under Tab H are 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 QNQuality 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
6
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.
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.
Four 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.
7
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
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 Parameter · (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% RPO.
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.
Continuou, ly Pumped Wells
Wells MW-4, TW4-1, TW4-2, TW4-4, TW4-ll, 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
8
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.
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 TW4-5, TW4-9, TW4-16, MW-32, TW4-18, TW4-23, TW4-32 and TW4-38 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
9
interference and/or sample dilution. In these cases, the reported value for the analyte was higher
than the increased detection limit.
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 repo1ted 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 less than or equal to the 20% RPD criteria in the samples. 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 TW4-3R had a reported chloroform detection of 4.8 ug/L. TW4-3 was
nondetect for chloroform. The rinsate blank results for TW4-3 were outside of acceptance limits
for the rinsate blank results.
TW4-3R was collected after decontamination and prior to the pump being used to collect any Q2
2022 chloroform samples. Because the pump was not used prior to the rinsate sample collection,
the detection is not the result of cross contamination.
Rinsate blank sample TW4-9R had a reported chloroform detection of 7.3 ug/L. The well
sampled before TW4-9R was TW4-08 which had a detection of chloroform of 10.9 ug/L. The
rinsate blank results for TW 4-9R were within outside of acceptance limits for the rinsate blank
10
results. It is important to note that TW4-8 was sampled on June 16, 2022 and TW4-9R was
sampled on June 21, 2022. The five day delay between the previous pump use, coupled with the
decontamination prior to the rinsate sample collection indicates that the detections in TW 4-9R
were not the result of cross contamination, but are the result of chloroform in the DI system
water used for the rinsate sampler.
Prior to the Ql 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
11
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
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
and high LCS recoveries for chloromethane in three analytical batches as indicated in Tab I.
The low LCS recovery for chloromethane affected all samples in batches 22E 1499 and 22F2101.
The data were flagged in accordance with EPA Method 8260. The data are usable for the
intended purpose because chloromethane is not frequently detected. Further, the wells listed
above do not have recent historical detections of chloromethane and the nondetect data are likely
accurate.
The high LCS recovery for chloromethane affected all samples in batch 22F1630. The data were
flagged in accordance with EPA Method 8260. The data are usable for the intended purpose
because the samples were all reported as nondetect and chloromethane is not frequently detected.
The high recovery indicates a high bias to the sample results. Further, the wells listed above do
not have recent historical detections of chloromethane and the nondetect data are likely accurate.
12
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 cells.
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.
13
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.
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: TW4-1, TW4-2, TW4-11, 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 TW4-4, 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
14
depression near TW4-4 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.
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 TW 4-4. Changes in water levels at
wells immediately south and southeast (downgradient) of TW4-4 resulting from TW4-4 pumping
were expected to be muted because TW 4-4 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 TW4-4 resulting
from TW 4-4 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 TW 4-4 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,
TW4-30 and TW4-40) are generally decreasing to stable. Generally decreasing to stable water
levels are evident at TW4-26 and TW4-29 since the fourth quarter of 2013; at TW4-30 only
since about the end of 2020; 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-
15
30, which was incorporated into the chloroform plume during the fourth quarter of 2020, 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.
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 TW4-4 and TW4-6. 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 TW4-6 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 TW4-4 and TW4-6. During the current quarter the
water level at TW4-14 (approximately 5535.4 feet above mean sea level ["ft amsl"]) is nearly 6
feet higher than the water level at TW4-6 (approximately 5529.7 ft amsl), and is approximately 6
feet higher than the water level at TW4-4 (approximately 5529.4 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 TW 4-29 (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 TW 4-4, TW 4-6, and TW 4-
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 TW4-6, and TW4-6 was actually downgradient of TW4-4, regardless of the
flow direction implied by the relatively low water level at TW4-14. The water level at TW4-26
(5527.7 feet amsl) is, however, lower than water levels at adjacent wells TW4-6 (5529.7 feet
amsl) and TW4-23 (5531.7 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
16
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,
White Mesa Uranium Mill Near Blanding, Utah [As-Built Report]). Hydraulic tests also indicate
that the permeability at TW 4-36 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 (5528.9 ft. amsl) is more than 6 feet lower than the
water level at TW4-14 (5535.4 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 TW4-41, 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 TW4-14 due to factors that include: closer proximity to the
northern pond seepage source; and a smaller thickness of low permeability materials separating
TW4-14 from surrounding higher permeability materials. In addition, hydraulic gradients
between TW4-14 and surrounding higher permeability materials were relatively large and were
consistently directed toward TW4-14 prior to TW4-41 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 smrounding 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 TW 4-27 sooner and to a
greater extent than TW 4-14, consistent with the lower rate of increase in water levels at TW 4-27,
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
17
TW4-27 remain outside the plume with current quarter chloroform concentrations of less than 1
µg/L and 3.1 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 TW 4-4 to TW 4-
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
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 TW4-4 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 and
was detected at approximately 71 µg/L this quarter. Consequently, TW 4-30 does not bound the
plume immediately to the east. However, chloroform was not detected at new bounding well
TW4-43 (located east-southeast of TW4-30); nor at wells TW4-31 (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).
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 ; however, as
discussed above, TW 4-30 does not bound 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 TW 4-26 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 TW 4-26). Chloroform has not been detected at either
TW4-23 or TW4-34. Although chloroform exceeding 70 µg/L was detected at well TW4-
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,
18
2019. TW4-42 is generally downgradient of both TW4-26 and TW4-40 and bounds the
chloroform plume to the south.
Eventually, TW4-4 pumping, enhanced by operation of adjacent pumping well TW4-41, is likely
to reduce chloroform at both TW4-29 and TW4-33 by cutting off the source. The decrease at
TW4-33 is expected to be faster than at TW4-29 because TW4-33 is in closer proximity to TW4-
4 pumping. Such behavior is expected by analogy with 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, however, concentrations at TW4-33 appear to be
relatively stable to decreasing (and have generally been decreasing since 2018). From the third
quarter of 2014 until the second quarter of 2020, concentrations at TW4-29 generally increased;
however since the second quarter of 2020 concentrations appear to be relatively stable to
decreasing.
Chloroform trends at TW4-29 and TW4-33 suggest that chloroform migration has been arrested
at TW4-33 by TW4-4 (and TW4-41) pumping and that increased 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, and until the fourth quarter of 2020, bounded the
plume to the east). 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. Pumping at TW4-41 since
the second quarter of 2018 is 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
TW4-41 pumping in the second quarter of 2018 is likely to increase this apparent separation and
to have resulted in concentrations at TW4-6 dropping below 70 µg/L after the second quarter of
2018. Furthermore, the initiation of pumping at TW4-40 during the second quarter of 2019 is
expected to reduce or prevent chloroform migration to the south of TW 4-40.
19
Detectable chloroform concentrations at TW4-14 (from the fourth quarter of 2014 through the
first quarter of 2021) 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 TW 4-41 is expected to reduce or prevent future migration of chloroform toward
these wells.
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 first quarter of 2022, as submitted with the
Chloroform Monitoring Report for the first quarter of 2022, is attached under Tab E. A
comparison of the water table contour maps for the current quarter (second quarter of 2022) to
the water table contour maps for the previous quarter (first quarter of 2022) indicates the
following: water level changes at the majority of site wells were small ( < 1 foot); only small
changes to water level contours have resulted from water level measurements at recently
installed temporary chloroform well TW4-43; 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 larger 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 TW 4-41 since the second quarter of 2018 and from initiation of
pumping at TW4-40 during the second quarter of 2019.
The drawdowns at chloroform pumping wells MW-26, TW4-4 and TW4-37; and at nitrate
pumping well TW4-25 increased 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 levels for
chloroform pumping wells TW4-1, TW4-2 and TW4-11 are below the depth of the Brushy Basin
contact this quarter. Although both increases and decreases in drawdown occurred in pumping
wells, the overall apparent capture area of the combined pumping system is larger than last
quarter.
As discussed in Section 4.1.1, pumping at chloroform well TW 4-4, 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 TW4-41 in the second quarter of 2018 has contributed to
20
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.
The water levels at Piezometers 1 through 3A decreased by as much as 0.43 feet this quarter;
however water levels at Piezometers 4 and 5 increased by as much as 0.75 feet. Typically, water
levels at these piezometers decrease, 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 wells TWN-1 and TWN-4 decreased by as
much as 0.56 feet.
The reported water level at MW-20 decreased by nearly 1.4 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 partially 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 up gradient 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
transrnissivity 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
21
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 TW 4-4. As with the other chloroform pumping wells,
pumping TW 4-4 and TW 4-41 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 TW4-40 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-l 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 TW4-4 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 TW 4-4 and TW 4-41, 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, TW4-2, TW4-1 l, TW4-19, TW4-21, TW4-39, TW4-40 and TW4-41; and nitrate
pumping wells TW4-22, TW4-24 and TWN-2 were less than two feet. Water level decreases
occurred in chloroform pumping wells MW-26 (approximately 6.8 feet); TW4-1 (less than 0.1
feet); TW4-4 (nearly 10.1 feet); TW4-19 (approximately 0.9 feet); TW4-21 (approximately 0.4
feet); TW4-37 (approximately 3.3 feet); TW4-39 (nearly 0.3 feet); and TW4-40 (nearly 1.1 feet);
and in nitrate pumping wells TW4-25 (approximately 3.2 feet); and TWN-2 (nearly O.lfeet).
Water level increases occurred in chloroform pumping wells MW-4 (nearly 0.7 feet); TW4-2
(approximately 1 foot); TW4-11 (nearly 0.6 feet); and TW4-41 (approximately 0.02 feet); and in
nitrate pumping wells TW4-22 (approximately 0.14 feet); and TW4-24 (nearly 1.8 feet). The
overall apparent combined capture area of the nitrate and chloroform pumping systems is larger
than last quarter; capture increased primarily due to increased drawdowns at MW-26 and TW4-
37.
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
22
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 4.5 gpm.
The pumping calculation is based on the total volume pumped by the above wells over the 90
day quarter (579,272 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 1.1 gpm or 32%, 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 TW4-20
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 TW4-8 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 TW 4-6 generally decreased between the first
quarter of 2015 and the current quarter (and remains outside the plume), concentrations at TW4-
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 2.1 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 of 2009 through the third quarter of 2010; and from the third quarter of 2014 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 TW4-4 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 TW4-4 was demonstrated by the net decreases in TW4-6
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 TW 4-4. 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-l 1
and TW4-41. Regardless of whether TW4-6 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 TW4-16 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
TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 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 TW 4-16 from non-detect to 387 µg/L.
Concentrations at TW4-16 dropped from 387 µg/L in the fomth 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 120 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
4.1.1, chloroform detected at TW4-29 may have migrated around the low permeability area
24
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 of TW4-33 were likely higher prior to initiation of TW4-4 pumping.
TW4-4 pumping (augmented by pumping at adjacent well TW4-41) is expected to eventually
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 TW4-41) pumping. By analogy, such behavior would be consistent with the
decreases in 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 TW 4-29 generally increased; subsequently concentrations
stabilized. 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; appear consistent with these expectations. Trends at these wells suggest that
chloroform migration has been arrested at TW4-33 by TW4-4 (and TW4-41) pumping and that
previous} y increasing chloroform at TW 4-29 resulted from a remnant of the plume that migrated
past TW4-33 generally toward TW4-30 (which was previously downgradient of TW4-29 and,
until the fourth quarter of 2020, bounded the plume to the east). 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. 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 790 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 TW4-4 (and TW4-41) pumping has arrested chloroform
25
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 TW 4-6 to TW 4-26. The enhancement
of pumping in the vicinity of TW 4-4 by the start-up of TW 4-41 pumping in the second quarter of
2018 is likely to increase this apparent separation and to have resulted in concentrations at TW4-
6 dropping below 70 µg/L beginning in the third quarter of 2018.
Furthermore, detectable chloroform concentrations at TW4-14 (from the fourth quarter of 2014
through the first quarter of 2021) 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.
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 recently installed well TW4-43 bounds
chloroform to the southeast of 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
site. 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 K are 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: TW4-19, TW4-21, TW4-37, TW4-39 and TW4-40;
b) Chloroform concentrations decreased by more than 20% in the following wells
compared to last quarter: MW-26, TW4-6, TW4-7, TW4-8, TW4-9, TW4-10, TW4-22
and TW4-29;
26
c) Chloroform concentrations have remained within 20% in the following wells compared
to last quarter: MW-4, TW4-l, TW4-2, TW4-4, TW4-5, TW4-11, TW4-16, TW4-18,
TW4-24, TW4-26, TW4-27, TW4-30, TW4-33 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,
TW4-34, TW4-35, TW4-36, TW4-38, TW4-42 and TW4-43.
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, TW4-6,
TW4-7, TW4-8, TW4-9, TW4-10, TW4-19, TW4-21, TW4-22, TW4-29, TW4-37, TW4-39 and
TW4-40 had changes in concentration greater than 20%. Of these, MW-26, TW4-19, TW4-
21,TW4-37, TW4-39 and TW4-40 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; TW4-7 and TW4-8 are located adjacent to chloroform pumping well
MW-4; TW 4-9 is located just outside the plume margin near chloroform pumping well TW 4-39;
TW4-10 is located near chloroform pumping wells MW-26 and TW4-39; and TW4-29 is located
in the southeastern extremity of the plume just within 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 (such as TW4-9 and TW4-29).
Chloroform pumping wells MW-4 (1,010 µg/L); TW4-4 (1,110 µg/L); TW4-11 (2,550 µg/L);
TW4-19 (2,540 µg/L); TW4-37 (46,800 µg/L); TW4-41 (1,010 µg/L); and nitrate pumping well
TW4-22 (2,600 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 1,040 to 1,010 µg/L;
TW4-4 increased from 1,010 µg/L to 1,110 µg/L; TW4-11 decreased from 2,780 to 2,550 µg/L;
TW4-19 increased from 654 µg/L to 2,540 µg/L; and TW4-37 increased from 13,700 to 46,800
µg/L which is the largest concentration ever measured at this well. The substantial quarterly
increase after the general decline in concentrations since TW4-37 began pumping in mid-2015
suggests the current quarter's data are anomalous.
In addition, the chloroform concentration in chloroform pumping well TW4-21 increased from
469 to 657 µg/L; the concentration in chloroform pumping well TW4-41 decreased from 1,030
to 1,010 µg/L; the concentration in nitrate pumping well TW4-22 decreased from 3,320 to 2,600
µg/L; and the concentration in nitrate pumping well TW4-24 increased from 114 to 124 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 approximately 11 µg/L, and remained
27
outside the plume. TW4-8 is located immediately east of chloroform pumping well MW-4,
where chloroform was detected at a concentration of 1,010 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 n01theast 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, TW 4-8 remained outside of and bounded the plume
during 2020, and remains outside of and bounds the plume this quarter. 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.
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 from 624 µg/L to 398 µg/L; and chloroform at TW4-
30, located immediately cross-gradient of TW4-29, decreased from 73.6 µg/L to 70.8 µg/L,
remaining just within the plume. Chloroform at TW 4-14 remained non-detect and chloroform at
TW4-27 decreased slightly from approximately 3.3 µg/L to 3.1 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 TW4-4 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 of
TW4-29.
Furthermore, as discussed in Section 4.1.1, general increases in 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. Recent increases in concentration 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 3.1 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 2.1 µg/L) and TW4-23 (non-detect). As a consequence of
increases in concentration, TW 4-30 no longer bounds the plume immediately to the east;
however TW4-43, installed in September, 2021, serves as a new bounding well in this area.
Chloroform at TW4-33 (located between TW4-4 and TW4-29) showed an increase in
concentration, from approximately 53 µg/L to approximately 59 µg/L. Although just outside the
plume since the first quarter of 2021, concentrations have remained close to 70 µg/L, fluctuating
between 53 and 69 µg/L. Chloroform at TW4-33 is bounded to the north by TW4-14 (non-
detect), to the east by TW4-27 (approximately 3.1 µg/L), and to the west by TW4-6
(approximately 2.1 µg/L) and TW4-23 (non-detect).
The chloroform concentration in TW4-6 decreased from approximately 3.1 µg/L to 2.1 µg/L.
TW4-6 has remained outside the chloroform plume since the third quarter of 2018. Installed in
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the second quarter of 2000, TW 4-6 was the most down gradient 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. TW4-6 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 TW 4-4 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 TW 4-4. Concentrations at TW 4-4 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 TW4-9 and TW4-16; and slight expansion near TW4-21. The slight
contractions were due to chloroform concentration decreases at TW4-9 and TW4-16; and the
slight expansion due to the increase in concentration at TW4-21. 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. TW4-9 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.
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 of 2015 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-I6
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(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 TW4-6 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 inside the plume.
The decreasing trend in chloroform 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. 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 of TW 4-1, TW 4-2, 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, TW 4-4. 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
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
30
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 of TW4-1, TW4-2, and TW4-11
and began long term pumping of TW4-21 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
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
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(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-2 is a nitrate program well and is sampled only for nitrate and
chloride as required by the nitrate program. Because TWN-2 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.
5.4.1 TW4-41
During the routine check on May 9, 2022, the pump in TW4-41 malfunctioned. All ancillary
systems were checked and it was determined that the pump was malfunctioning and could not be
repaired. The pump was removed and replaced within 24 hours of discovery and as such no
notifications were necessary.
5.4.2 TW4-19
During the routine check on May 16, 2022, the pump in TW4-19 malfunctioned. All ancillary
systems were checked and it was determined that the pump was malfunctioning and could not be
repaired. The pump was removed and replaced within 24 hours of discovery and as such no
notifications were necessary.
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 21.8 lb., which is approximatelyl60 % more than the approximately
8.4 lb. removed last quarter. The larger rate of mass removal is attributable primarily to the
increased concentrations at TW4-19 and TW4-37.
The residual mass of chloroform within the plume is estimated as 1,124 lb. using the
32
methodology described in Appendix A of the GCAP ("Chloroform Plume Mass Calculation
Method"). This is approximately 413 lb. larger than last quarter's estimate of 711 lb, primarily
due to the increased concentration at TW4-37. As discussed in Section 4.2.3, the current
quarter's concentration for TW4-37 is the largest concentration ever measured at this well. The
substantial quarterly increase after the general decline in concentrations since TW4-37 began
pumping in mid-2015 suggests the current quarter's data are anomalous.
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.
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 98 %, which is
larger than last quarter's approximately 79%. The increase is primarily attributable to the
increase in capture area resulting from increased drawdowns at pumping wells MW-26 and
TW4-37.
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.
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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
west and southwest by MW-28 (non-detect), MW-31 (non-detect), MW-32 (non-detect), TW4-6
(approximately 2.1 µg/L) and TW4-23 (non-detect); to the east by TW4-3 (non-detect), TW4-5
(approximately 10 µg/L), TW4-8 (approximately 11 µg/L), TW4-9 (approximately 10 µg/L),
TW4-13 (non-detect), TW4-14 (non-detect), TW4-18 (approximately 63 µg/L), TW4-27
(approximately 3.1 µg/L), TW4-33 (approximately 59 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).
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 TW 4-30 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. Subsequent data will determine whether or not TW4-30 remains within 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. Finally, the groundwater flow direction in
the immediate vicinity of TW4-30 is now south-southeasterly, generally toward TW4-35 and
TW 4-43, both non-detect for chloroform.
34
7.2 Well Construction, Maintenance and Operation
Part II of the GCAP specifies that EFRI 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 II.G 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 Q2 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 1,124 lb. using the
methodology described in Appendix A of the GCAP ("Chloroform Plume Mass Calculation
Method"). This is approximately 413 lb. more than last quarter's estimate of 711 lb. However,
since the third quarter of 2015, the residual mass estimate trend is downward; and the current
quarter's estimate of 1,124 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 21.8
lb., is approximately 160 % larger than the mass removed last quarter (approximately 8.4 lb.).
The larger mass removal is attributable primarily to the increased concentrations at pumping
wells TW4-19 and TW4-37. As discussed in Section 4.2.3, the current quarter's concentration
for TW4-37 is the largest concentration ever measured at this well. The substantial quarterly
increase after the general decline in concentrations since TW4-37 began pumping in mid-2015
suggests the current quarter's data are anomalous.
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
35
west and southwest by MW-28 (non-detect), MW-31 (non-detect), MW-32 (non-detect), TW4-6
(approximately 2.1 µg/L) and TW4-23 (non-detect); to the east by TW4-3 (non-detect), TW4-5
(approximately 10 µg/L), TW4-8 (approximately 11 µg/L), TW4-9 (approximately 10 µg/L),
TW4-13 (non-detect), TW4-14 (non-detect), TW4-18 (approximately 63 µg/L), TW4-27
(approximately 3.1 µg/L), TW4-33 (approximately 59 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. Subsequent data will determine whether or not TW4-30 remains within 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
TW 4-30. 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. Finally, the groundwater flow direction in
the immediate vicinity of TW4-30 is now south-southeasterly, generally toward TW4-35 and
TW 4-43, both non-detect for chloroform.
The water level contour maps for the second 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-l, 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 TW4-
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 TW4-4 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 TW4-4 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
36
magnitude decrease in permeability south of TW 4-4. However, as noted in previous reports,
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 larger than last quarter, with capture increasing within the central portion of the
combined pumping system due primarily to increased drawdowns at MW-26 and TW4-37.
'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 4.5 gpm. The combined pumping rate of 4.5
gpm exceeds the calculated background flow by 1.1 gpm or 32 %, 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, TW4-6, TW4-7, TW4-8, TW4-9, TW4-
10, TW4-19, TW4-21, TW4-22, TW4-29, TW4-37, TW4-39 and TW4-40 had changes in
concentration greater than 20%. Of these, MW-26, TW4-19, TW4-21, TW4-37, TW4-39 and
TW4-40 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; TW4-7
and TW4-8 are located adjacent to chloroform pumping well MW-4; TW4-9 is located just
outside the plume margin near chloroform pumping well TW4-39; TW4-10 is located near
chloroform pumping wells MW-26 and TW4-39; and TW4-29 is located in the southeastern
extremity of the plume just within 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 (1,010 µg/L); TW4-4 (1,110 µg/L); TW4-11 (2,550 µg/L);
TW4-19 (2,540 µg/L); TW4-37 (46,800 µg/L); TW4-41 (1,010 µg/L); and nitrate pumping well
TW4-22 (2,600 µg/L) had the highest detected chloroform concentrations. Since last quarter, the
chloroform concentrations in MW-4 decreased from 1,040 to 1,010 µg/L; TW4-4 increased
from 1,010 µg/L to 1,110 µg/L; TW4-11 decreased from 2,780 to 2,550 µg/L; TW4-19 increased
from 654 µg/L to 2,540 µg/L; and TW4-37 increased from 13,700 to 46,800 µg/L.
In addition, the chloroform concentration in chloroform pumping well TW4-21 increased from
469 to 657 µg/L; the concentration in chloroform pumping well TW4-41 decreased from 1,030
37
to 1,010 µg/L; the concentration in nitrate pumping well TW4-22 decreased from 3,320 to 2,600
µg/L; and the concentration in nitrate pumping well TW4-24 increased from 114 to 124 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 11 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 1,010 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 TW4-8 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 TW 4-14 (between the fourth quarter of 2014 and the
first qua1ter of 2021) and at TW4-27 (since the third quaiter 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 remained non-detect and chloroform at TW4-27 decreased
from approximately 3.3 µg/L to 3.1 µg/L. Pumping at TW4-41 is expected to reduce or prevent
future migration of chloroform toward these wells.
Concentration trends at TW 4-29 (located at the southeastern extremity of the plume, to the east
of TW4-26 and to the south of TW4-27); and at TW4-30 (located immediately east of TW4-29),
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
from 624 µg/L to 398 µg/L; and chloroform at TW4-30 decreased from approximately 74 µg/L
to 71 µg/L, remaining just within 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.
Chloroform at TW4-29 is bounded to the north by TW4-27 (approximately 3.1 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 2.1 µg/L) and TW4-23 (non-detect). As discussed above,
TW4-30 no longer bounded the plume immediately to the east and TW4-43 acts as the new
bounding well in this area. In addition, generally increased concentrations at TW4-26 since the
third quarter of 2016 are consistent with continuing downgradient chloroform migration, which
is likely enhanced by the decay of the groundwater mound associated with the southern wildlife
pond.
38
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 an increase in concentration, from approximately
53 µg/L to approximately 59 µg/L. Chloroform at TW4-33 is bounded to the north by TW4-14
(non-detect), to the east by TW4-27 (approximately 3.1 µg/L), and to the west by TW4-6
(approximately 2.1 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 TW4-9 and TW4-16; and slight expansion near TW4-21. The slight
contractions were due to chloroform concentration decreases at TW4-9 and TW4-16; and the
slight expansion due to the increase in concentration at TW4-21. 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. TW4-9 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 n01thern 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, TW4-16 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 120 µg/L this quarter, concentrations have generally increased since 2018,
likely in response to reduced dilution.
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-
39
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 TW 4-1,
TW4-2, and TW4-11 pumping.
Continued operation of the original chloroform pumping wells (MW-4, MW-26, and TW 4-19) 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 TW 4-41, 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 TW4-6 from
1,000 µg/L in the first quarter of 2010 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)
pumping.
Continued operation of chloroform pumping wells TW 4-1, TW 4-2, TW 4-11, TW 4-21, TW 4-37,
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.
Fmthermore, because of the influence of TW 4-4 pumping ( augmented by TW 4-41 pumping
since the second quarter of 2018), and by analogy with the concentration decreases at TW4-6 and
TW4-26 that occurred after initiation of TW4-4 pumping, chloroform concentrations at TW4-29
and TW4-33 were expected to eventually trend downward. Since the third quarter of 2014, TW4-
33 concentrations that have been relatively stable to decreasing; and TW4-29 concentrations that
generally increased before becoming relatively stable; 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
40
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. 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 is likely 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 is expected to be beneficial even though it is
also expected to result in higher concentrations that will persist until continued mass reduction
via pumping and natural attenuation ultimately reduce concentrations. Temporary increases in
chloroform concentrations are 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 groundwater
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:
e\e \z:z.
Scott A. Bakken Date
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 6/8/2022 6/23/2022
TW4-01 6/8/2022 6/23/2022
TW4-02 6/8/2022 6/23/2022
TW4-03 6/15/2022 6/29/2022
TW4-03R 6/14/2022 6/29/2022
TW4-04 6/8/2022 6/23/2022
TW4-05 6/16/2022 6/29/2022
TW4-06 6/16/2022 6/29/2022
TW4-07 6/22/2022 7/11/2022
TW4-08 6/16/2022 6/29/2022
TW4-09 6/22/2022 7/11/2022
TW4-09R 6/21/2022 7/11/2022
TW4-10 6/22/2022 7/1 J/2022
TW4-ll 6/8/2022 6/23/2022
TW4-12 6/15/2022 6/29/2022
TW4-13 6/15/2022 6/29/2022
TW4-14 6/16/2022 6/29/2022
MW-26 6/8/2022 6/23/2022
TW4-16 6/22/2022 7/11/2022
MW-32 5/16/2022 6/2/2022
TW4-18 6/22/2022 7/11/2022
TW4-19 6/8/2022 6/23/2022
TW4-21 6/8/2022 6/23/2022
TW4-22 6/8/2022 6/23/2022
TW4-23 6/16/2022 6/29/2022
TW4-24 6/8/2022 6/23/2022
TW4-25 6/8/2022 6/23/2022
TW4-26 6/22/2022 7/11/2022
TW4-27 6/16/2022 6/29/2022
TW4-28 6/15/2022 6/29/2022
TW4-29 6/22/2022 7/1 J/2022
TW4-30 6/22/2022 7/11/2022
TW4-31 6/16/2022 6/29/2022
TW4-32 6/15/2022 6/29/2022
TW4-33 6/22/2022 7/11/2022
TW4-34 6/16/2022 6/29/2022
TW4-35 6/16/2022 6/29/2022
TW4-36 6/15/2022 6/29/2022
TW4-37 6/8/2022 6/23/2022
TW4-38 6/16/2022 6/29/2022
TW4-39 6/8/2022 6/23/2022
TW4-40 6/8/2022 6/23/2022
TW4-41 6/8/2022 6/23/2022
TW4-42 6/15/2022 6/29/2022
TW4-43 6/16/2022 6/29/2022
TW4-60 6/8/2022 6/23/2022
TW4-65 6/15/2022 6/29/2022
TW4-70 6/16/2022 6/29/2022
TW4-75 6/22/2022 7/11/2022
All sample locations were sampled for Chloroform, 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 Dl Field Blank, TW4-65 is a duplicate of TW4-42, and TW4-70 is a duplicate of TW4-38
and TW4-75 is a duplicate ofTW4-18.
Highlighted wells are continuously pumped.
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
I-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 Isoconcentration 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
Tab A
Site Plan and Perched Well Locations White Mesa Site
TW443 temporary perched monitoring well ~ installed September, 2021
TWN-20 temporary perched nitrate monitoring C well installed April, 2021
MW-24A perched monitoring well installed • December 2019
TW4-42 temporary perched monitoring well ¢ installed April 2019
TW440 perched chloroform pumping well EB installed February 2018
TW4-19 perched chloroform or EB nitrate pumping well
MW-38
-¢-perched monitoring well installed
February 2018
MW-5 • perched monitoring well
TW4-12 0 temporary perched monitoring well
TWN-7 temporary perched nitrate monitoring ¢ well
PIEZ-1
-1 perched piezometer
RUIN SPRING
b seep or spring
llRfO
• MW-~
Dft'.tt
HYDRO
GEO
CHEM, INC.
·-MW,29
~
_,_..., • TWN-45 ~.
Ceft 2
~-30
·-MW,31
Cell 3
• ,!l'\V'1f
~-18
~
• ~·
.~ O' ,wN,15.
~ :n,,w-11
WHITE MESA SITE PLAN SHOWING LOCATIONS OF
PERCHED WELLS AND PIEZOMETERS
APPROVED DATE REFERENCE
H:/718000/may22/Uwelloc0322.srf
FIGUftE A-1
TabB
Order of Sampling and Field Data Worksheets
Order of Contamination for 2nd Quarter 2022 Chloroform Purging Event
Chloroform
Well Sample time Levels Rinsate date/time
TW4-03 {./1~/n O'-'iS ND
TW4-42 l,/l'fj/'/..?. 0700 ND
TW4-12 i>/15/zz. 0111 ND
TW4-28 ,JJ!,lzk 07,:U ND
TW4-32 t:.(IS/z.z. 0732.. ND
TW4-I3 b/15/U.. 01'ift ND
TW4-36 .LIS/AA, "1~8 ND
TW4-14 &;.llc.Jt2 O(,fo ND
TW4-31 (./(Litt 0705 ND
TW4-43 bl/£/%~ Oll,3 ND
TW4-34 ,; lla/r:z. rZI ND
TW4-35 . 1, U. 01.3'i ND
TW4-23 (p/~2.'L oJ'i.3 ND
TW4-38 (/1 t.:Z i:>1~ ND
TW4-25 ',11/zt. \2.IS ND
MW-32 B:i1.0 ND
TW4-06 ' / b 3.1
TW4-27 . U. "' · :3.3
TW4-05 (qi 1(./a. o:f,.27 I I
TW4-08 ,JuJt:z.OS3'i 15.1
.. TW4-09C.,/2l,/z'Z.. OJl.5 16.5
• TW4-33 wt2:i .. 01~ 53,.l, '
.. TW4-18 1 U/ztO'"llf0 .. ,.~6
• TW4-30 c; J'l'l,(Z"l-0155 ·73.6
TW4-24 i.l'IJ2:z. 11.'2.5 114
-TW4-16 ,tz.zlrt.. osot, 150
TW4-40 fo~Mt.'L ,~~ ··238
TW4-21 ,gfzz. 12,0!» 469
-TW4-I0 ti,IU./7..T... 01)2. 471
-TW4-29 1./zt/zz QU'I 624
TW4-19 G,/f/z'L &LlSS 654
TW4-39 'tt[Z'Z.. ll5S 724
-TW4-07 ;;1-'l.lfZ.. Oj3'\ 776
TW4-01 ,,81z:z. '"'oz 946
~ TW4-26 wz.tl'l-7-Ol'tJ 952
TW4-04 L/l('l.1.. 1&12.S I010
TW4-02§ 4z.t. . 1020
MW-26 '.5 1030
TW4-41 b z2. I030
MW-o4 &lg tit 1~00 1040
TW4-l I b/Sf'L 1'3,l5 2780
TW4-22 f:./,_Z.'l. !2.$ 3320
TW4-37 (,/J /t,2. t'2.'i5 13700
TW4-60 0.1. Blank ,11Lzz.
TW4-65 Duplicate &LIJ.[1'."I....
TW4-70 Duplicate '/12/t.Z.
-TW4-75 Duplicate ,lz'l,l'l,,'l,,,
Comments:
()115
0700
0'1S5
01'40
Water Well
level Depth
141 "'Tl.l"l· O~R-OG.I~ Z.02"2... ogz.o
86
101.5
107
115.1
102.5
99
93
106
97.9
97.2
87.5
114
112.75
134.8 Cont. Pumping
130.6 Bladder pump
97.5
96
120
125 120. ,-i,.>'4-0'f R._ o,z•z62z. oi'IO
87.9
137.5
92.5
112.5 Cont. Pumping
146.3
86 Cont. Pumping
121 Cont. Pumping
111
93.5
125 Cont. Pumping
120 Cont. Pumping
120
1 IO Cont. Pumping
86
112 Cont. Pumping
120 Cont. Pumping
122.5 Cont. Pumping
97.75 Cont. Pumping
124 Cont. Pumping
I 00 Cont. Pumping
113.5 Cont. Pumping
112 Cont. Pumping
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan ew;:: -' I . ...-•
.....__._..t.t:··· .~ .. ·L --~ ..-r" ·. . . . f .' . V .El'JER!GYF¥1EZ s
--' J..! -'_,;i
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID MW-04 Sampling Program Chloroform Monitoring
Field Sample ID MW-04 06082022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/8/2022 13:59
Sample Date & Time 6/8/2022 14:00 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C} 32
Purging Method 2 Casings Previous Well Sampled TW4-02
Casing Volume (gal} 14.65
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 7.0 Well Depth (ft} 123.60
pH Buffer 4.0 4.0 Well Casing Diameter (in) 3
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft} 83.68
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
6/8/2022 14:00 1899 7.15 16.50 438 0 30.0
Pumping Rate Calculations -
[volume of water purged() Flow Rate (Q = S/60) (gal/min) 4.0
Time to evacuate 2 Casing Volumes ()
[ Final Depth to Water (feet) 85.98 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Anal}'t_ical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VO Cs-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 H2S04 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 1356. Samples collected at 1400. Water was clear. Left site at 1402.
Signature of Field Technician
~"'~)~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-01 Sampling Program Chloroform Monitoring
Field Sample ID TW4-01 05082022 Sampling_ Event 2022 Q2 Chloroform
Purge Date & Time 6/8/2022 14:07
Sample Date & Time 6/8/2022 14:08 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 32
Purging Method 2 Casings Previous Well Sampled MW-26
Casing Volume (gal) 11.52
Calculated Casing Volumes Purge Duration ()
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) 93.65
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/8/2022 14:08 2300 7.30 18.40 422 1.0 83.0
Pumping Rate Calculations
ly_olume of wate_r ei,i_!9ed O Flow Rate (Q = S/60) (gal/min) 13.00
Time to evacuate 2 Casing Volumes()
!Final Dep!_ll to Water (feet) 107.54 Number of casing Volumes
Volume, if well evacuated to dryness () 0
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?
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 1404. Samples collected at 1408. Water was clear. Left site at 1410.
Signature of Field Technician
-"\_ I' -_.}c.v~M~
Groundwater Discharge Permit e-. ' . . 7.:.:: ' ' ' ,· r _.,l.. ,-· .. _J,·-~-... Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-02 Sampling Program Chloroform Monitoring
Field Sample ID TW4-02 06082022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/8/2022 13:24
Sample Date & Time 6/8/2022 13:25 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 32
Purging Method 2 Casings Previous Well Sampled TW4-11
Casing Volume (gal) 15.39
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 7.0 Well Depth (ft) 120.90
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 97.33
Conduct1v1ty Dissolved
Date/Time Gallons Purged {umhos/cm) pH {pH Units) Temp (deg C) Redox (mV) Turbidity {NTU) Oxygen(%) Before/ After
6/8/2022 13:25 3973 7.19 16.41 471 0.4 92.0
[volume of W___!ter purged()
PumpJng Rate Calculations
Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes ()
!Final Depth to Water {feet) 115.10 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 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 H2S04 (pH<2), 4 Deg C y
Comments:
J Arrived on site at 1320. Samples collected at 1325. Water was clear. Left site at 1327.
Signature of Field Technician
~~ .//-L. v ~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan e--_ F-:1-,-~-'
~ ::::;:i: ._ L ..... -.· ~Y.l'=C.IFZ ...
. ---_,, ~· ~---
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-03 Sampling Program Chloroform Monitoring
Field Sample ID TW4-03 06152022 Sampling_ Event 2022 Q2 Chloroform
Purge Date & Time 6/14/2022 8:35
Sample Date & Time 6/15/2022 6:45 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 19
Purging Method 2 Casings Previous Well Sampled TW4-60
Casing Volume (gal) 49.08
Calculated Casing Volumes Purge Duration (min) 8.92
pH Buffer 7.0 7.0 Well Depth (ft) 140.30
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 65.13
Conduct1v1ty Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/14/2022 8:41 68.75 1900 6.82 15.02 390 10.0 78.0
6/15/2022 6:45 1855 6.78 15.07 Before
6/15/2022 6:46 1861 6.82 15.04 After
Pumping Rate Calculations
[volume _c>f water purged (gals} 68.75 Flow Rate (Q == S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 6.25
!Final Depth to Water (feet) 137.68 Number of casing Volumes 1.40
Volume, if well evacuated to dryness {gals) 68.75
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?
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 H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 0831. Purge began at 0835. Purged well for a total of 6 minutes and 15 seconds. Purged well dry. Water was clear. Purge ended at 0841 . Left site at 0844. Arrived on site at 0641 .
Depth to water was 65.41. Samples bailed and collected at 0645. Left site at 0648.
Signature of Field Technician
~~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-03R Sampling Program
Field Sample ID TW4-03R 06142022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time
Sample Date & Time 6/14/2022 8:20 [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 (1
Specific Conductance () Depth to Water Before Purgi11_g (ft)
Conductivity Dissolved
DatefTime Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/14/2022 8:19 133.00 3.7 6.25 22.30 402 0 38.7
Pumping Rate Calculations
[volume of water purged_() Flow Rate (Q = S/60) ()
Time to evacuate 2 Casin_g_ Volumes ()
!Final D~th to Water (feet) Number of casin_g_ 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 H2S04 (pH<2), 4 Deg C y
Comments:
Signature of Field Technician
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan e--F-, ~~ I" ,.---_.-
~· -·,· r ~-~--. ~--~·-'_-_-.!:~_."·_ '~y~-=zs
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-04 Sampling Program Chloroform Monitoring
Field Sample ID TW4-04 06082022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/8/2022 14:24
Sample Date & Time 6/8/2022 14:25 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 32
Purging Method 2 Casings Previous Well Sampled TW4-41
Casing Volume (gal) 22.25
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) 80.42
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
6/8/2022 14:25 2444 7.45 17.43 438 0 99.0
Pumping Rate Calculations
[volume of water purged() Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes ()
[Final Dep_!_h to Water (feet) 103.77 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 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 1421 . Samples collected at 1425. Water was clear. Left site at 1428.
Signature of Field Technician
Groundwater Discharge Permit
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 06162022 Samplirlg Event 2022 Q2 Chloroform
Purge Date & Time 6/15/2022 13:41
Sample Date & Time 6/16/2022 8:27 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 28
Purging Method 2 Casings Previous Well Sampled TW4-27
Casing Volume (gal) 32.24
Calculated Casing Volumes Purge Duration (min) 5.86
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) 72.47
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
6/15/2022 13:45 44.00 1641 6.80 15.74 297 6.5 67.0
6/15/2022 13:46 55.00 1622 6.83 15.72 294 6.5 66.0
6/15/2022 13:47 66.00 1611 6.85 15.72 293 6.3 64.5
6/15/2022 13:48 77.00 1600 6.87 15.72 293 6.2 64.0
Pumping Rate Calculations
!volume of wat_!!r pu~ged (gals) 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) 74.03 Number of casing Volumes 2.00
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Analytical Sam_eles 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 1337. Purge began at 1341. Purged well for a total of 7 minutes. Purge ended at 1348. Water was clear. Left site at 1351. Arrived on site at 0823. Depth to water was 72.58.
Samples bailed and collected at 0827. Left site at 0828.
Signature of Field Technician
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-06 Sampling Program Chloroform Monitoring
Field Sample ID TW4-06 06162022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/15/2022 12:41
Sample Date & Time 6/16/2022 8:06 [sam_eler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 28
Purging Method 2 Casings Previous Well Sampled TW4-38
Casing Volume (gal) 12.92
Calculated Casing Volumes Purge Duration (min) 2.35
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) 79.80
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/15/2022 12:42 13.75 3950 6.98 16.05 291 58.0 18.0
6/16/2022 8:06 3951 6.73 15.06 Before
6/16/2022 8:07 3955 6.73 15.03 After
Pumping Rate Calculations
[volum~ o! water purged_(gals) 13.75 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 1.25
!Final Depth to Water (feet) 97.64 Number of casing Volumes 1.06
Volume, if well evacuated to dryness (gals) 13.75
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 1237. Purge began at 1241. Purged well for a total of 1 minute and 15 seconds. Purged well dry. Purge ended at 1242. Water was mostly clear. Left site at 1245. Arrived on site at
0801 . Depth to water was 80.82. Samples bailed and collected at 0806. Left site at 0808.
Signature of Field Technician
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-07 Sampling Program Chloroform Monitoring
Field Sample ID TW4-07 06222022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/21/2022 12:45
Sample Date & Time 6/22/2022 8:34 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 28
Purging Method 2 Casings Previous Well Sampled TW4-29
Casing Volume (gal) 24.91
Calculated Casing Volumes Purge Duration (min) 4.52
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) 82.85
Conductivity Dissolved
Date!Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/21/2022 12:49 52.25 1742 7.06 15.20 231 30.0 33.1
6/22/2022 8:34 1949 7.25 14.82 Before
6/22/2022 8:35 1960 7.24 14.84 After
Pumping Rate Calculations
[volume of water purged (gals) 52.25 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 4.75
[Final Depth to Water (feet) 118.10 Number of casing Volumes 2.00
Volume, if well evacuated to dryness (gals) 52.25
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 H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1241 . Purge began at 1245. Purged well for a total of 4 minutes and 45 seconds. Purged well dry. Water was a little murky. Purge ended at 1249. Left site at 1254. Arrived on site
at 0829. Depth to water was 85.91 . Samples bailed and collected at 0834. Left site at 0836.
Signature of Field Technician
-:3L~'U'\,r.-,,;,c._-,7'7,;.~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan a -·~-,...--~; , .· ,I;_ . -. . . .' .~. YFY1EY S
----:' ,'/,' -~ White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-08 Sampling Program Chloroform Monitoring
Field Sample ID TW4-08 06162022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/15/2022 14:15
Sample Date & Time 6/16/2022 8:34 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 29
Purging Method 2 Casings Previous Well Sampled TW4-05
Casing Volume (gal) 26.59
Calculated Casing Volumes Purge Duration (min) 4.83
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) 85.48
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/15/2022 14:18 33.00 4816 6.54 15.58 312 3.1 1.1
6/15/2022 14:19 44.00 4805 6.57 15.48 312 3.0 1.0
6/15/2022 14:20 55.00 4803 6.60 15.40 313 2.9 1.0
6/15/2022 14:21 66.00 4804 6.61 15.32 313 2.9 1.0
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) 98.29 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 1411 . Purge began at 1415. Purged well for a total of 6 minutes. Purge ended at 1421. Water was clear. Left site at 1424. Arrived on site at 0830. Depth to water was 85.76.
Samples bailed and collected at 0834. Left site at 0835.
Signature of Field Technician
~cu~··
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-09 Sampling Pr_ogram Chloroform Monitoring
Field Sample ID TW4-09 06222022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/21/2022 8:14
Sample Date & Time 6/22/2022 7:15 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 21
Purging Method 2 Casings Previous Well Sampled TW4-08
Casing Volume (gal) 32.25
Calculated Casing Volumes Purge Duration (min) 5.86
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) 70.70
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
6/21/2022 8:19 55 .00 2503 6.75 15.13 360 30.0 1.0
6/21/2022 8:20 66.00 2502 6.76 15.12 358 31.0 1.0
6/21/2022 8:21 77.00 2503 6.77 15.12 356 32.0 1.0
6/21/2022 8:22 88.00 2502 6.77 15.11 354 32.0 1.0
Pumping Rate Calculations
[volume o!_water purged (gals) 88.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 8.00
[Final Dei:,th to Water (feet) 75.39 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 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 0809. Purge began at 0814. Purged welf for a total of 8 minutes. Purge ended at 0822. Water was a little murky. Left site at 0824. Arrived on site at 0711. Depth to water was
70.76. Samples bailed and collected at 0715. left site at 0717.
Signature of Field Technician
-:__L, ,,r-./,;.-t:.,.G.~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-09R Samp!ing Program
Field Sample ID TW4-09R 06212022 Sampling_ Event 2022 Q2 Chloroform
Purge Date & Time
Sample Date & Time 6/21/2022 7:40 [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)
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/21/2022 7:39 133.00 6.8 7.31 21.04 314 0 40.4
Pumping Rate Calculations
@:()lume of water purged () Flow Rate (Q ::: S/60) ()
[ Final Depth to Water Jfeet)
Time to evacuate 2 CasingVolumes O
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 HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
Signature of Field Technician
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-10 Sampling P_rogram Chloroform Monitoring
Field Sample ID TW4-10 06222022 Sampli11_g Event 2022 Q2 Chloroform
Purge Date & Time 6/21/2022 11:38
Sample Date & Time 6/22/2022 8:12 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 26
Purging Method 2 Casings Previous Well Sampled TW4-16
Casing Volume (gal) 28.14
Calculated Casing Volumes Purge Duration (min) 5.11
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) 70.10
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
6/21/2022 11:41 36.66 2774 6.34 15.51 378 27.0 12.9
6/22/2022 8:12 2507 6.64 15.24 Before
6/22/2022 8:13 2515 6.66 15.23 After
Pumping Rate Calculations
[volume of water pu~ge_~Jg<!_ls) 36.66 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 3.33 I Final Depth to Water (feet) 111.02 Number of casing Volumes 1.30
Volume, if well evacuated to dryness (gals) 36.66
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 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 H2504 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1133. Purge began at 1138. PurgeOwell for a total of 3 minutes and 20 seconds.Purgea well dry. Water was mostly clear. Purge ended at 1141. Left site at 1145. Arrived on site at
0808. Deptti_ to water was 70.18. Sa1T1_Ples bailed and collected at 0812. Left site at 0814.
Signature of Field Technician
~"'~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-11 Sampling Program Chloroform Monitoring
Field Sample ID TW4-11 06082022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/8/2022 13:14
Sample Date & Time 6/8/2022 13:15 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 32
Purging Method 2 Casings Previous Well Sampled MW-26
Casing Volume (gal) 7.96
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 7.0 Well Depth (ft) 102.40
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 90.21
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/8/2022 13:15 3791 7.01 17.01 399 1.0 83.0
Pumping Rate Calculations
[volume of water purged () Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes ()
[ Fin_al Depth to Water (feet) 98.75 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?
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 1310. Samples collected at 1315. Water was clear. Left site at 1318.
Signature of Field Technician
~"-"-"'~#~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-12 Sampling Program Chloroform Monitoring
Field Sample ID TW4-12 06152022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/14/2022 9:39
Sample Date & Time 6/15/2022 7:14 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C} 23
Purging Method 2 Casings Previous Well Sampled TW4-42
Casing Volume (gal} 30.76
Calculated Casing Volumes Purge Duration (min} 5.59
pH Buffer 7.0 7.0 Well Depth (ft} 103.20
pH Buffer 4.0 4.0 Well Casing Diameter (in} 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 56.08
Conductivity Dissolved
Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C} Redox (mV} Turbidity (NTU) Oxygen(%} Before/After
6/14/2022 9:42 38.50 1550 7.40 15.44 361 2.8 77.0
6/15/2022 7:14 1509 7.38 14.43 Before
6/15/2022 7:15 1515 7.39 14.45 After
Pumping Rate Calculations
[volume of water purged_Jgalaj 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) 100.79 Number of casing Volumes 1.25
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 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 H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 0935. Purge began at 0939. Purged well for a total 3 minutes and 30 seconds. Purged well dry. Purge ended at 0942. Water was clear. Left site at 0945. Arrived on site at 0711 .
Depth to water was 56.15. Samples bailed and collected at 0714. Left site at 0716.
Signature of Field Technician
~=UV,
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-13 Sampling Program Chloroform Monitoring
Field Sample ID TW4-13 06152022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/14/2022 11:54
Sample Date & Time 6/15/2022 7:40 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 26
Purging Method 2 Casings Previous Well Sampled TW4-32
Casing Volume (gal) 31.50
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) 57.46
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
6/14/2022 11:58 41.25 2088 7.06 15.75 410 4.7 86.1
6/15/2022 7:40 2097 7.37 14.50 Before
6/15/2022 7:41 2108 7.36 14.54 After
Pumping Rate Calculations
[volume of water purged (gals) 41.25 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 3.75
[Final Depth to Water (fee~l 102.98 Number of casing Volumes 1.30
Volume, if well evacuated to dryness (gals) 41.25
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 H2504 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1150. Purge began at 1154. Purged well for a total of 3 minutes and 45 seconds. Purged well dry. Purge ended at 1158. Water was clear. Left site at 1201 . Arrived on site at 0736.
Depth to water was 57.38. Samples bailed and collected at 0740. Left site at 0742.
Signature of Field Technician
~.,_,~~-J-/e.~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan ~-
--~' ,c /
_/~Yl"OAF>cS
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-14 Sampling Program Chloroform Monitoring
Field Sample ID TW4-14 06162022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/15/2022 8:21
Sample Date & Time 6/16/2022 6:55 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 21
Purging Method 2 Casings Previous Well Sampled TW4-36
Casing Volume (gal) 11.61
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) 77.32
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
6/15/2022 8:22 13.75 5518 6.70 15.48 284 32.0 90.8
6/16/2022 6:55 2737 6.82 15.70 Before
6/16/2022 6:56 2755 6.77 15.65 After
Pumping Rate Calculations
!volume of water_purged (gals) 13.75 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 1.25
[ Final Depth to Water (feet) 92.95 Number of casing Volumes 1.18
Volume, if well evacuated to dryness (gals) 13.75
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 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 0817. Purge began at 0821 . Purged well for a total of 1 minute and 15 seconds. Purge ended at 0822. Water was a little murky. Left site at 0825. Arrived on site at 0651 . Depth to
water was 77.42. Samples bailed and collected at 0655. Left site at 0657.
Signature of Field Technician
2)~#~
Groundwater Discharge Permit
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 06082022 Same&i'!_g Event 2022 Q2 Chloroform
Purge Date & Time 6/8/2022 13:04
Sample Date & Time 6/8/2022 13:05 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 32
Purging Method 2 Casings Previous Well Sampled TW4-39
Casing Volume (gal) 29.13
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) 76.71
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/8/2022 13:05 3473 6.96 17.80 404 0.3 33.0
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) 94.80 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Analytical Samp_les 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 H2S04 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 1300. Samples collected at 1305. Water was clear. Left site at 1307.
Signature of Field Technician
Groundwater Discharge Permit
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 06222022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/21/2022 10:46
Sample Date & Time 6/22/2022 8:06 I sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 25
Purging Method 2 Casings Previous Well Sampled TW4-30
Casing Volume (gal) 47.96
Calculated Casing Volumes Purge Duration (min) 8.72
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) 74.15
Conductivity Dissolved
Date!Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
6/21/2022 10:53 77.00 3781 6.65 15.01 368 14.0 1.3
6/21/2022 10:54 88.00 3696 6.69 14.99 364 12.0 2.0
6/21/2022 10:55 99.00 3689 6.71 14.99 360 12.0 2.1
6/21/2022 10:56 110.00 3629 6.73 15.00 334 13.0 2.1
Pumping Rate Calculations
!Volume of water purged (gal~) 110.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 10.00
!Final Depth to Water (f~~!l 138.34 Number of casing Volumes 2.00
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Container Preservative
Type of Sample/Analysis 'Tlple Collecte 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 HDPE u H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1042. Purge began at 1046. Purged well for a total ono mmutes. Purge ended at 1056. Water was mostly clear. Lett site at 1059--:-Arfived on site at 0802. Depth to water was
74.25. Samples bailed and collected at 0806. Left site at 0807.
Signature of Field Technician
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID MW-32 Sampling Pr<>_gram Chloroform Monitoring
Field Sample ID MW-32 05162022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 5/16/2022 7:20
Sample Date & Time 5/16/2022 12:20 [sampler TH/DL
Purging Equipment Pump Weather Conditions Partly cloudy
Pump Type QED External Ambient Temperature (C) 17
Purging Method 2 Casings Previous Well Sampled N/A
Casing Volume (gal) 31.40
Calculated Casing Volumes Purge Duration (min) 289.48
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) 82.50
Conductivity Dissolved
Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
5/16/2022 12:17 64.44 3727 6.54 15.31 265 43 .2 15.9
5/16/2022 12:18 64.66 3725 6.56 15.30 265 43.3 15.7
5/16/2022 12:19 64.88 3727 6.54 15.31 265 43.2 15.9
5/16/2022 12:20 65.10 3727 6.54 15.31 264 43.3 15.9
Pumping Rate Calculations
!volume of 1Nl!!~urged (gals) 65.10 Flow Rate (Q = S/60) (gal/min) .217
Time to evacuate 2 Casing Volumes (min) 300.00
!Final Depth to Water (feet) 87.55 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 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 H2S04 (pH<2), 4 Deg C y
Comments:
[ !,rrived on sit~ at 0715. Purge began at 0720. Purged well for a total of 300 minutes. Purge ended and samples collected at 1220. Water was clear. Left site at 1228.
Signature of Field Technician
-:3=~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-18 Sampling Program Chloroform Monitoring
Field Sample ID TW4-18 06222022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/21/2022 9:24
Sample Date & Time 6/22/2022 7:40 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 23
Purging Method 2 Casings Previous Well Sampled TW4-33
Casing Volume (gal) 41.19
Calculated Casing Volumes Purge Duration (min) 7.48
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) 73.82
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/21/2022 9:30 66.00 2090 6.67 15.62 379 33.0 10.5
6/21/2022 9:31 77.00 2059 6.63 15.61 379 34.0 10.4
6/21/2022 9:32 88.00 2027 6.63 15.62 379 32.4 10.8
6/21/2022 9:33 99.00 2001 6.62 15.62 378 32.7 10.8
!volume of water purged (gals) 99.00
Pumping Rate Calculations
Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 9.00
IFinaJ De__e_th to Water (feet) 78.49 Number of casing Volumes 2.00
Volume, if well evacuated to dryness() 0
Name of Certified Anal~ical 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 HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 0920. Purge began at 0924. Purged well for a total of 9 minutes. Purge ended at 0933. Water was a little murky. Lett site at 0936.-Arrived on ~site at 0734. Depth to water was 73~ff5.
Samples bailed and collected at 0740.
Signature of Field Technician
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
;;;,,c;,;,.. -·F-:-1· ~ ...
,._·· -"~v -_ t ,r ~~ . EIVERJGy~ ~ White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-19 Sampling Program Chloroform Monitoring
Field Sample ID TW4-19 06082022 Sam.e_ling Event 2022 Q2 Chloroform
Purge Date & Time 6/8/2022 14:54
Sample Date & Time 6/8/2022 14:55 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 32
Purging Method 2 Casings Previous Well Sampled TW4-40
Casing Volume (gal) 35.26
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 7.0 Well Depth (ft) 126.86
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 72.85
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/8/2022 14:55 2742 6.87 17.20 412 1.1 38.7
Pumping Rate Calculations -
[volume of water purg_ed () Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes ()
[ Final Depth to Water (feet} 78.66 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical ~boratory
AWSL
Analyt_ical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Ch loroform 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 H2S04 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 1451 . SamJJles collected at 1455. Water was clear. Left site at 1457.
Signature of Field Technician
--:3~~~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-21 Sampling Program Chloroform Monitoring
Field Sample ID TW4-21 06082022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/8/2022 12:04
Sample Date & Time 6/8/2022 12:05 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 30
Purging Method 2 Casings Previous Well Sampled MW-32
Casing Volume (gal) 28.01
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) 75.90
conduct1v1ty Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
6/8/2022 12:05 2790 7.03 18.00 482 0 50.0
f Volume of water purged ()
Pumping_ Rate Calculations
Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes ()
fFinal Depth to Water (feet) 83.12 Number of casing Volumes
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?
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 H2S04 (pH<2), 4 Deg C y
Comments:
[ Arrived on_J,jte at 1200. Samples collected at 1205. Water was clear. Left site at 1207.
Signature of Field Technician
~~M~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-22 Sampling Program Chloroform Monitoring
Field Sample ID TW4-22 06082022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/8/2022 12:34
Sample Date & Time 6/8/2022 12:35 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 31
Purging Method 2 Casings Previous Well Sampled TW4-24
Casing Volume (gal) 30.50
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 7.0 Well Depth (ft) 114.70
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 67.98
Dissolved
Date/Time Gallons Purged Conductivity pH Temp Redox Turbidity Oxygen Before/ After
6/8/2022 12:35 4851 6.62 16.60 455 1.7 37.0
[volume of water ptJr_g_ed ()
Pumpin_g Rate Calculations
Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes ()
[ Final Deet_h to Water (feet) 100.67 Number of casing Volumes
Volume, if well evacuated to dryness () 0
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-Ch loroform 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-mLHDPE u H2S04 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 1232. Samples collected at 1235. Water was clear. Left site at 1238.
Signature of Field Technician
--::3~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-23 Sampling Program Chloroform Monitoring
Field Sample ID T\A/4-23 06162022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/15/2022 11:04
Sample Date & Time 6/16/2022 7:43 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 26
Purging Method 2 Casings Previous Well Sampled TW4-35
Casing Volume (gal) 26.15
Calculated Casing Volumes Purge Duration (min) 4.75
pH Buffer 7.0 7.0 Well Depth (ft) 116.40
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 76.34
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/15/2022 11:09 55.00 3507 6.73 14.88 219 67.0 77.0
6/15/2022 11:10 66.00 3510 6.80 14.86 211 63.0 78.0
6/15/2022 11:11 77.00 3512 6.81 14.85 208 64.0 78.0
6/15/2022 11:12 88.00 3520 6.82 14.83 205 65.0 79.0
Pump_i_ng Rate Calculations -
[volume of water purged (g~s) 88.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 8.00
[ Final Depth to W11ter (feet) 105.62 Number of casing Volumes 2.00
Volume, if well evacuated to dryness O 0
Name of Certified Analytical Laboratory
A\NSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y \NATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y \NATER 1 500-ml Poly u None N
Nitrate/nitrite as N y \NATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1059. Purge began at 1104. Purged well for a total of 8 minutes. Purge ended at 1112. \Nater had an orange coloration. Left site at 1114. Arrived on site at 07 40. Depth to water
was 76.40. Samples bailed and collected at 0743. Left site at 0744.
Signature of Field Technician
~4,1~
Groundwater Discharge Permit
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 06082022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/8/2022 12:24
Sample Date & Time 6/8/2022 12:25 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 31
Purging Method 2 Casings Previous Well Sampled TW4-25
Casing Volume (gal) 29.17
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) 70.12
Conductivity Dissolved
Date!Time Gallons Purged (um hos/cm) pH (pH Units) Temp(deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/8/2022 12:25 6997 6.84 15.94 504 0 23.0
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) 78.67 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-mLPoly 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 1221. Samples collected at 1225. Water was clear. Left site at 1228.
Signature of Field Technician
~,,__,~--14:·
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-25 Samplin_g Program Chloroform Monitoring
Field Sample ID TW4-25 06082022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/8/2022 12:14
Sample Date & Time 6/8/2022 12:15 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 30
Purging Method 2 Casings Previous Well Sampled TW4-21
Casing Volume (gal) 39.61
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 7.0 Well Depth (ft) 136.70
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 76.04
Conductivity Dissolved
Date/Time Gallons Purged (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/8/2022 12:15 2564 7.14 16.70 489 0.7 30.0
!volume of water pur_ged ()
Pume_ing Rate Calculations
Flow Rate (Q = S/60) (gal/min) 12.00
Time to evacuate 2 Casing Volumes ()
!Final Depth to Water (feet) 90.42 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?
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 1210. Samples collected at 1215. Water was clear. Left site at 1218.
Signature of Field Technician
-.:3'4,'1..11~'
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-26 Sameling Program Chloroform Monitoring
Field Sample ID TW4-26 06222022 Samplin_g Event 2022 Q2 Chloroform
Purge Date & Time 6/21/2022 13:25
Sample Date & Time 6/22/2022 8:41 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 28
Purging Method 2 Casings Previous Well Sampled TW4-07
Casing Volume (gal) 8.41
Calculated Casing Volumes Purge Duration (min) 1.53
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) 74.81
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/21/2022 13:26 8.25 4651 6.82 16.78 339 3.5 79.0
6/22/2022 8:41 4644 7.12 15.04 Before
6/22/2022 8:42 4644 7.11 15.00 After
Pumping Rate Calculations
!volume 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 \ft{_aterj_feet) 84.97 Number of casing Volumes 0.98
Volume, if well evacuated to dryness (gals) 8.25
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?
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 H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1321. Purge began at 1325. Purged well for a total of 45 seconds. Purged well dry. Purge ended at 1326. Water was clear. Left site at 1329. Arrived on site at 0837. Depth to water
was 75.15. Samples bailed and collected at 0841 . Left site at 0843.
Signature of Field Technician
~~"7"'~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan etF-:' ~ , .. ,.~·-I ·•
i,..-' / • .,. .•
-, . . , '~ /'/ , ~Y~l"IFY S
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-27 Sampling Program Chloroform Monitoring
Field Sample ID TW4-27 06162022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/15/2022 13:12
Sample Date & Time 6/16/2022 8:16 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 28
Purging Method 2 Casings Previous Well Sampled TW4-06
Casing Volume (gal) 10.85
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) 79.12
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/15/2022 13:13 11.00 5348 7.25 16.35 275 20.0 61.0
6/16/2022 8:16 5191 6.54 15.37 Before
6/16/2022 8:17 5196 6.57 15.34 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) 93.71 Number of casing Volumes 1.01
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 HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1308. Purge began at 1312. Purged well for a total of 1 minute. Purged well dry. Purge ended at 1313. Water was a little murky. Left site at 1315.
Arrived on site at 0813. Depth to water was 79.63. Samples bailed and collected at 0816. Left site at 0818.
Signature of Field Technician
~LU"...iV_.,c....-M~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-28 Sampling Program Chloroform Monitoring
Field Sample ID TW4-28 06152022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/14/2022 10:13
Sample Date & Time 6/15/2022 7:23 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 23
Purging Method 2 Casings Previous Well Sampled TW4-12
Casing Volume (gal) 38.82
Calculated Casing Volumes Purge Duration (min) 7.05
pH Buffer 7.0 7.0 Well Depth (ft) 108.48
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 49.02
Conductivity Dissolved
Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C} Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/14/2022 10:17 47.66 1550 7.45 15.37 349 5.0 87.0
6/15/2022 7:23 1555 7.49 14.03 Before
6/15/2022 7:24 1553 7.48 14.01 After
Pumping Rate Calculations
!volume of water purged_(9als) 47.66 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 4.33
[Final Dept~ t_o _Water _(feet) 106.33 Number of casing Volumes 1.22
Volume, if well evacuated to dryness (gals) 47.66
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
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 H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1009. Purge began at 1013. Purged well for a total of 4 minutes and 20 seconds. Purged well dry. Purge ended at 1017. ater was mostly clear. Left site at 1020. Arrived on site at
0720. De_e_th to water was 49.16. Same_les bailed and collected at 0723. Left site at 0725.
Signature of Field Technician
~,..._,~,r-_r4-~
Groundwater Discharge Permit
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 06222022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/21/2022 12:15
Sample Date & Time 6/22/2022 8:24 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 28
Purging Method 2 Casings Previous Well Sampled TW4-10
Casing Volume (gal) 8.56
Calculated Casing Volumes Purge Duration (min) 1.55
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) 79.16
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/21/2022 12:16 11.00 4147 6.76 16.40 382 6.0 96.0
6/22/2022 8:24 4026 7.07 15.17 Before
6/22/2022 8:25 4038 7.08 15.12 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) 92.27 Number of casing Volumes 1.28
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 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 1211 . Purge began at 1215. Purged well for a total of 1 minute. Purge ended at 121 6. Water was clear. Left site at 121 8. Arrived on site at 0819. Depth to water was 79.21.
Samples bailed and collected at 0824. Left site at 0826.
Signature of Field Technician
~""'~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
~
. -------. ?' .r" " -s ~----:~ ~YFL --~~ White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-30 Sampling_ Program Chloroform Monitoring
Field Sample ID T\/V4-30 06222022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/21/2022 10:11
Sample Date & Time 6/22/2022 7:55 [!:.ampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 24
Purging Method 2 Casings Previous Well Sampled TW4-18
Casing Volume (gal) 11.83
Calculated Casing Volumes Purge Duration (min) 2.15
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) 75.36
Conductivity Dissolved
DatefTime Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU} Oxygen(%) Before/After
6/21/2022 10:12 13.75 4630 5.73 15.90 406 18.0 60.0
6/22/2022 7:55 4431 6.03 15.72 Before
6/22/2022 7:56 4435 6.05 15.63 After
Pumping Rate Calculations
!volume of water purged (gals) 13.75 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 1.25 I Final Depth to y'Va~r (feet) 91.25 Number of casing Volumes 1.16
Volume, if well evacuated to dryness (gals) 13.75
Name of Certified Analytical Laboratory_
AVVSL
Analytical Sari,_eles Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y \/VATER 3 40ml VOA u HCI (pH<2), 4 Deg C y
Chloride y \/VATER 1 500-ml Poly u None N
Nitrate/nitrite as N y \/VATER 1 250-ml HDPE u H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1007. Purge began at 1011. Purged well for a total of 1 minute and 15 seconds. \/Vater was mostly clear. Purge ended at 1012. Left site at 1014. Arrived on site at 0751 . Depth to
water was 75.44. Samples bailed and collected at 0755. Left site at 0757.
Signature of Field Technician
~~+r.::-~
Groundwater Discharge Permit
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 06162022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/15/2022 8:57
Sample Date & Time 6/16/2022 7:05 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 24
Purging Method 2 Casings Previous Well Sampled TW4-14
Casing Volume (gal) 20.42
Calculated Casing Volumes Purge Duration (min) 3.71
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) 76.20
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox {mV) Turbidity (NTU) Oxygen(%) Before/ After
6/15/2022 8:59 24.75 3846 7.14 15.97 258 25.0 28.0
6/16/2022 7:05 2423 7.06 15.05 Before
6/16/2022 7:06 2440 7.06 15.04 After
!volume of water purged (_gals) 24.75
Pumping Rate Calculations
Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 2.25
!Final Depth to Water (feet) 105.11 Number of casing Volumes 1.21
Volume, if well evacuated to dryness (gals) 24.75
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 0853. Purge began at 0857. Purged well for a total of 2 minutes and 15 seconds. Purged well dry. Water was a little murky. Purge ended at 0859. Left site at 0902. Arrived on site at
0701 . Depth to water was 76.28. Samples bailed and collected at 0705. Left site at 0707.
Signature of Field Technician
~{L.,'1.rV~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-32 Sampling Program Chloroform Monitoring
Field Sample ID TW4-32 06152022 Sampling_ Event 2022 Q2 Chloroform
Purge Date & Time 6/14/2022 10:48
Sample Date & Time 6/15/2022 7:32 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 24
Purging Method 2 Casings Previous Well Sampled TW4-28
Casing Volume (gal) 37.78
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) 56.78
conduct1v1ty Dissolved
DatefTime Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/14/2022 10:52 44.00 6272 4.03 15.26 476 16.0 1.0
6/14/2022 10:53 55.00 6132 4.00 15.16 479 15.0 1.0
6/14/2022 10:54 66.00 6236 3.99 15.10 482 15.0 0.9
6/14/2022 10:55 77.00 6288 3.99 15.08 484 14.0 0.9
[volume of water purged (gals)
Pumpi11__9 Rate Calculations
77.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 7.00
[ Final Dep_th to W!ter (feet) 100.45 Number of casing Volumes 2.00
Volume, if well evacuated to dryness O 0
Name of Certified Analytical Labor_i1_tory
AWSL
Analyt_i_<:al Sam_e_les 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 H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1044. Purge began at 1048. Purged well for a total of 7 minutes. Purge ended at 1055. Water started milky and ended clear. Left site at 1057. Pump had white salt like particles on it
when pulled. Arrived on site at 0728. Depth to water was 56.82. Samples bailed and collected at 0732. Left site at 0733.
Signature of Field Technician
--=:3~
Groundwater Discharge Permit
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 06222022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/21/2022 8:51
Sample Date & Time 6/22/2022 7:25 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 22
Purging Method 2 Casings Previous Well Sampled TW4-09
Casing Volume (gal) 4.77
Calculated Casing Volumes Purge Duration (min) 0.86
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) 78.92
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/21/2022 8:51 3.66 3972 6.50 19.89 388 220.0 77.0
6/22/2022 7:25 4612 7.16 15.36 Before
6/22/2022 7:26 4620 7.20 15.31 After
Pumping Rate Calculations
[v~lu_me of water purged (gals) 3.66 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 0.33
[ Final Depth to Water (fee_t)_ 84.08 Number of casing Volumes 1.30
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 H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 0847. Purge began at 0851 . Purged well for a total of 20 seconds. Purged well dry. Water was murky. Purge ended at 0851 . Lett site at 0854. Arrived on site at 0721. Depth to
water was 79.55. Samples bailed and collected at 0725. Left site at 0727.
Signature of Field Technician
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-34 Sameling Prog_ram Chloroform Monitoring
Field Sample ID TW4-34 06162022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/15/2022 10:00
Sample Date & Time 6/16/2022 7:21 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 25
Purging Method 2 Casings Previous Well Sampled TW4-43
Casing Volume (gal} 12.00
Calculated Casing Volumes Purge Duration (min) 2.18
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) 77.35
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp {deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/15/2022 10:01 14.66 3810 6.99 15.92 255 17.3 15.2
6/16/2022 7:21 3611 7.21 14.88 Before
6/16/2022 7:22 3615 7.21 14.85 After
Pumping Rate Calculations
[volume of water purge_d (ga~} 14.66 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 1.33
[Final Depth to Wate! (feet) 93.71 Number of casing Volumes 1.22
Volume, if well evacuated to dryness (gals) 14.66
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 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 0956. Purge began at 1000. Purged well for a total 1 minute and 20 seconds. Purged well dry. Purge ended at 1001. Water was a little murky. Left site at 1004. Arrived on site at
0717. Depth to water was 77.42. Sam_e_les bailed and collected at 0721. Left site at 0723.
Signature of Field Technician
~«.,/"'~~ ~
Groundwater Discharge Permit e ·~,. • ~.1 L-· ,r .?
_.• 1/r •
: _ r" _,~,:_._ 1 ~Y.FYl'IF7.:S-
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 06162022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/15/2022 10:31
Sample Date & Time 6/16/2022 7:34 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 25
Purging Method 2 Casings Previous Well Sampled TW4-34
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 Dissolved
Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/15/2022 10:32 11.00 4500 6.52 15.12 294 8.0 43.7
6/16/2022 7:34 4390 6.70 14.82 Before
6/16/2022 7:35 4394 6.70 14.90 After
§1_ume of water purged (gals)
Pumping_ Rate Calculations
11.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 1.00
[Final Depth to WaterJ!eet) 84.13 Number of casing Volumes 1.55
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 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 H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1027. Purge began at 1031 . Purged well for a total of 1 minute. Purged well dry. Purge ended at 1032. Water was clear. Left site at 1034. Arrived on site at 0729. Depth to water
was 75.72. Samples bailed and collected at 0734. Left site at 0736.
Signature of Field Technician
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-36 Sampling Program Chloroform Monitoring
Field Sample ID T'vV4-36 06152022 Sampli'!_g Event 2022 Q2 Chloroform
Purge Date & Time 6/14/2022 12:29
Sample Date & Time 6/15/2022 7:48 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 27
Purging Method 2 Casings Previous Well Sampled TVV4-13
Casing Volume (gal) 26.77
Calculated Casing Volumes Purge Duration (min) 4.86
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) 58.41
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/14/2022 12:32 33.00 2498 6.78 15.78 202 32.0 1.4
6/15/2022 7:48 2467 7.15 14.30 Before
6/15/2022 7:49 2467 7.15 14.34 After
Pumplng Rate Calculations
[volume of water purge~ (gal~ 33.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 3.00
[ Final Depth to Wa!er (feet) 97.23 Number of casing Volumes 1.23
Volume, if well evacuated to dryness (gals) 33.00
Name of Certified Analytical Laboratory
AVVSL
Analyti~I Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y VVATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y VVATER 1 500-mL Poly u None N
Nitrate/nitrite as N y VVATER 1 250-mL HDPE u H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1225. Purge began at 1229. Purged well for a total of 3 minutes. Purged well dry. 'vVater was a little murky. Purge ended at 1232. Left site at 1235. Arrived on site at 07 44. Depth to
water was 59.41 . Samp_les bailed and collected at 07 48. Left site at 0750.
Signature of Field Technician
..==::') .. s.,"LJ>...,___-~~
Groundwater Discharge Permit
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 06082022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/8/2022 12:44
Sample Date & Time 6/8/2022 12:45 !sameler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 31
Purging Method 2 Casings Previous Well Sampled TW4-22
Casing Volume (gal) 24.40
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) 76.34
Dissolved
Date/Time Gallons Purged >nductivity (umhos/c pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/8/2022 12:45 48.11 6.64 17.10 489 0 70.0
Pumping Rate Calculations
[ Volume of water purged O Flow Rate (Q = S/60) (gal/min) 18.00
Time to evacuate 2 Casing Volumes () ! Final Depth to Water (feet) 102.11 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?
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 H2S04 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 1241 . Samples collected at 1245. Water was clear. Left site at 1248.
Signature of Field Technician
~<LP~~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan e,--.· F-:' . ,.-· ..... · . .,..~. )
____,. . ,· /~: ~YF'L--Z S'
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-38 Samplin9 Program Chloroform Monitoring
Field Sample ID TW4-38 06162022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/15/2022 12:08
Sample Date & Time 6/16/2022 7:55 [sa_111_eler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 28
Purging Method 2 Casings Previous Well Sampled TW4-23
Casing Volume (gal) 34.96
Calculated Casing Volumes Purge Duration (min) 6.35
pH Buffer 7.0 7.0 Well Depth (ft) 113.92
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 60.37
Conductivity Dissolved
DatefTime Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/15/2022 12:12 44.00 1774 6.72 15.13 313 14.0 77.0
6/15/2022 12:13 55.00 1816 6.78 15.02 308 18.0 78.0
6/15/2022 12:14 66.00 1753 6.82 15.00 310 18.0 78.0
6/15/2022 12:15 77.00 1809 6.87 15.01 309 17.8 78.0
[volume of water eu_,-ged (gals) 77.00
Pumping Rate Calculations
Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 7.00
[ Final ~_.e_th to Water (feet) 105.88 Number of casing Volumes 2.00
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Analytical S_c1_mples 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 H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1204. Purge began at 1208. Purged well for a total of 7 minutes. Purge ended at 1215. Water was clear. Left site at 1217. Arrived on site at 07 49. Depth to water was 60.55.
SamE_les bailed and collected at 0755. Left site at 0758.
Signature of Field Technician
-:3~.r~~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-39 Sampling Program Chloroform Monitoring
Field Sample ID TW4-39 06082022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/8/2022 12:54
Sample Date & Time 6/8/2022 12:55 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 31
Purging Method 2 Casings Previous Well Sampled TW4-37
Casing Volume (gal) 33.03
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 7.0 Well Depth (ft) 120.74
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 70.15
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/8/2022 12:55 2501 7.00 16.40 511 0 52.0
[volume of wa_t~_l"_purged ()
Pumping Rate Calculations
Flow Rate (Q = S/60) (gal/min) 18.00
Time to evacuate 2 Casing Volumes () I Final Depth to Water (feet) 108.43 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?
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:
I_ Arri_11ed on site at 1251. Samples collected at 1255. Water was clear. Left site at 1258.
Signature of Field Technician
~~.r_..c_.-rA~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-40 Sampling Program Chloroform Monitoring
Field Sample ID TW4-40 06082022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/8/2022 14:37
Sample Date & Time 6/8/2022 14:38 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 32
Purging Method 2 Casings Previous Well Sampled TW4-04
Casing Volume (gal) 7.96
Calculated Casing Volumes Purge Duration ()
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) 73.81
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
6/8/2022 14:38 4239 6.72 16.64 454 0 63.0
[volume of water purged ()
Pumping Rate Calculations
Flow Rate (Q = S/60) (gal/min) 18.00
Time to evacuate 2 Casing Volumes ()
[Final Depth to Water (feetl 82.48 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Analytical_ S_!_m_E_les 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 H2S04 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 1434. Samples collected at 1438. Water was clear. Left site at 1441.
Signature of Field Technician
~~~~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-41 Sampling Program Chloroform Monitoring
Field Sample ID TW4-41 06082022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/8/2022 14:14
Sample Date & Time 6/8/2022 14:15 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 32
Purging Method 2 Casings Previous Well Sampled TW4-01
Casing Volume (gal} 14.44
Calculated Casing Volumes Purge Duration (}
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) 87.92
Conductivity Dissolved
Date/Time Gallons Purged (um hos/cm) pH (pH Units} Temp (deg C} Redox (mV} Turbidity (NTU) Oxygen(%) Before/ After
6/8/2022 14:15 2836 7.39 18.18 431 D 98.0
Pumping Rate Calculations
!volume of water purged O Flow Rate (Q = S/60) (gal/min) 6.0
Time to evacuate 2 Casing Volumes ()
!Final Dee_th to Water (feet) 91.37 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?
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 1412. Samples collected at 1415. Left site at 1418. Water was clear.
Signature of Field Technician
~ .... ~
Groundwater Discharge Permit
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 06152022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/14/2022 9:10
Sample Date & Time 6/15/2022 7:00 ,~..imeler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 21
Purging Method 2 Casings Previous Well Sampled TW4-03
Casing Volume (gal) 10.10
Calculated Casing Volumes Purge Duration (min) 1.83
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) 70.52
Conductivity Dissolved
Date!Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/14/2022 9:11 11.00 3981 6.95 15.80 407 27.0 104.0
6/15/2022 7:00 3695 7.27 14.60 Before
6/15/2022 7:02 3702 7.28 14.54 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 I Final Depth to Water (feetl 84.03 Number of casing Volumes 1.08
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?
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 0906. Purge began at 0910. Purged well for a total of 1 minute. Purged well dry. Purge ended at 0911. Water was mostly clear. Left site at 0914. Arrived on site at 0654. Depth to
water was 70.64. Samples bailed and collected at 0700. Left site at 0703.
Signature of Field Technician
~u.,~~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-43 Sampling_ Program Chloroform Monitoring
Field Sample ID TW4-43 06162022 Sam_e_ling_ Event 2022 Q2 Chloroform
Purge Date & Time 6/15/2022 9:30
Sample Date & Time 6/16/2022 7:13 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 25
Purging Method 2 Casings Previous Well Sampled TW4-31
Casing Volume (gal) 14.45
Calculated Casing Volumes Purge Duration (min) 2.62
pH Buffer 7 .0 7.0 Well Depth (ft) 95.5
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 73.36
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
6/15/2022 9:32 22.00 3742 6.78 15.80 297 24.0 23.0
6/16/2022 7:13 3725 6.95 14.96 Before
6/16/2022 7:14 3742 6.95 15.00 After
Pumping Rate Calculations
[volume of water p_ll~ged (gals) 22.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 2.00
[ Final Depth to Wate! (feet) 93.40 Number of casing Volumes 1.52
Volume, if well evacuated to dryness (gals) 22.00
Name of Certified Analytical Laboratory
AWSL
Anal}'t_ical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Ch loroform 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 0926. Purge began at 0930. Purged well for a total of 2 minutes. Purged well dry. Water was a little murky. Purge ended at 0932. Leftsite at 0934.
Arrived on site at 0709. Depth to water was 73.44. Samples bailed and collected at 0713. Left site at 0715.
Signature of Field Technician
~-~M~
Groundwater Discharge Permit
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 06092022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time 6/9/2022 7:14
Sample Date & Time 6/9/2022 7:15 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 22
Purging Method 2 Casings Previous Well Sampled TW4-19
Casing Volume ()
Calculated Casing Volumes Purge Duration ()
pH Buffer 7 .0 7.0 Well Depth (~)
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
6/9/2022 7:15 1.7 8.15 23.95 393 2.2 74.0
Pumping Rate Calculations
[volume of water purged O Flow Rate (Q = S/60) ()
Time to evacuate 2 Casing Volumes ()
[Final Depth to VVat~(feet) 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?
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 HDPE u H2S04 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 071 O._Samples collected in the lab at 0715. Left site at 0718.
Signature of Field Technician
-2>u.,~Q"l
--aF-: . .--• 1.-·· r . /.· . _ _.:;i_; ( j___ r ~
'·-. ,··_ •• J l·~y~c;
r ,. -·~
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
[volume of water purged ()
[ Final Depth to Water (feet)
Gallons Purged
Name of Certified Analytical Laboratory
AWSL
Anal~ical Samples Information
Type of Sample/Analysis
VOCs-Chloroform
Chloride
Nitrate/nitrite as N
Comments:
[ Duplicate of TW 4-42
Signature of Field Technician
2:>CLAI\
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
TW4-65 Sampling f>rogram
TW4-65 06152022 Sampling Event 2022 Q2 Chloroform
6/15/2022 7:00 !Sampler TH/DL
Weather Conditions
External Ambient Temperature ()
Previous Well Sampled
Well Depth (ft)
Well Casing_ Diameter ()
Depth to Water Before Purging (ft)
Dissolved
Conductivity pH Temp Redox Turbidity Oxygen I Before/After
Pumping Rate Calculations
Flow Rate (Q = S/60) ()
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
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-70 Sampling Program
Field Sample ID TW4-70 06162022 Samplin_g Event 2022 Q2 Chloroform
Purge Date & Time
Sample Date & Time 6/16/2022 7:55 [ Sc!'Tlpler 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)
Date/Time Gallons Purged Conductivity pH Temp Redox Turbidity Dissolved Oxyg_en I Before/After
Pumping Rate Calculations
[volume of water purged() Flow Rate (Q = S/60)Jl
Time to evacuate 2 Casing Volumes O
[ Final Depth to Water (feet) Number of casing Volumes
Volume, if well evacuated to dryness ()
Name of Certified Analytical Laboratory
AWSL
Analyt_ical 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 H2S04 (pH<2), 4 Deg C y
Comments:
Duplicate of TW4-38
Signature of Field Technician
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-75 Sameling Program
Field Sample ID TW4-75 06222022 Sampling Event 2022 Q2 Chloroform
Purge Date & Time
Sample Date & Time 6/22/2022 7:40 [sam1>_ler TH/DL
Purging Equipment Weather Conditions
Pump Type External Ambient Temperature()
Purging Method Previous Well Sampled
Casing Volume O
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)
Dissolved
Date/Time Gallons Purged Conductivity eH Temp Redox Turbidity Oxygen I Before/After
Pumping Rate Calculations
@olume of w_ater purgl!d () Flow Rate (Q = S/60) ()
I Final_Qeptll_to Water (feet)
Time to evacuate 2 Casing \01umes i)
Number of casinJI Volumes
Volume, if well evacuated to dryness (1
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 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 H2S04 (pH<2), 4 Deg C y
Comments: I Duplicate of TW4-18
Signature of Field Technician
TabC
Weekly and Monthly Depth to Water Data
Weekly Inspection Form
Date ,-,-6 a, Nameq,a G-: M 4av tr'c,{f,~,c
System Operational (ff no note
W II D th* C ts bl Time 8 eo ommen §!nr: ~ro •!!!a/corrective actions!
I 'll c-)) MW-4 «~ .a,: Flow " D .. No
Meter a~ ~, .. ~11 ... 1 a/ 8 ,. No
I "2 'll, \ MW-26 -, !J '"f'T Flow JI. £-4 ... No
Meter ~ 11.., & q '7 . ., .. No
,.,_,n,:: TW4-19 "'9".1 11. Flow •·2 0 "!fa No -Meter .., 1 ... n , ~ , ~.., ~ No
... ,& TW4-20 "' ti. Flow h1 'h, Yes ..
Meter
,
Yes Jfa. o..l t,,.
, 11.,, TW4-4 -A.O Lf 'T Flow I., ... D .. • No
Meter -r °' q -,. q '.l 2 • No
11n'.2 TWN-2 <«.-R.i.l Flow I 1. I) Jia. No
Meter , "'t n r ... ~ , ~ 1 .. No .~ \ \ TW4-22 -,,i_-...-a Flow . ,_ ~ • No
Meter .,. -, 1r·c-_, ..., 1 ... No
J11\,:' TW4-24 ,.t,. <n Flow ,,. '1 111118 No
Meter , o q -,. o ... t. u"' ... No
'" r:" I:. TW4-25 t .. q 41 I Flow Ul.Q ¥el No --Meter ,,"lr .. 7l:"~ 'i~ .. No ~
l"J.r'~ TW4-1 ,n~ .n~ Flow 12.G .. No
Meter -.Cl~"',_ 1. 1 ... No
J".'.>UIJ TW4-2 QR ",,;" Flow f I,.. 4 ... No
Meter "~ '.J , I'.. i.. 1 ... No
I "1 ':l-, TW4-11 QJI , •• Flow It:', q ... No
Meter 9.·"' -:r,.-; • , , -No ~.-,
,n <n TW4-21 (I\ / .. L. Flow·· , r~ .n -No
Meter ~ Q '7 -? .. , 2 't:? ~ '.l -No .~ ,, TW4-37 .., .. ··"" Flow I 9o n • No Meter ~ !I , t:< J./ 3•. IA No
,~ ~,to' TW4-39 ., '\ ., c" Flow ,.itto ,.. No
Meter q"', ~<l ., ~ .,. No
1"1'\~ TW4-40 "'1 !l. I "T Flow 1tl n .,_ No
Meter •Q11~1;< , .. Q ... No
1'\ .~ TW4-41 CUI "f / .. Flow L I\ ... No
Meter ~<il, ·H .:1 .,,,.i;-... 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 !
_D_a_te_1_ .. _1_-.... ,a_.a,._____ Name o,.41 c. tr-, :z;;:;;:,c ~
Time Well DeQth* Time Well Deeth*
l]!i2. MW-4 9.&1QS Q9S'.'.3 TWN-1 10,0C
1]~'1 TW4-1 H:2~~2 Q!5'.:9 TWN-2 fB,14
l3~6i TW4-2 99,l-' ,o. ':1.6. TWN-3 'f'i,35'
tlf.OS: TW4-3 <.s'."fs iQ!l,Q TWN-4 ,,.o, •
l3 :a~ TW4-4 Zfi..~Q IQQf.t TWN-7 80,20 .
IYI£ TW4-5 1.1,Gi~ iOl'-TWN-18 &l,04
132.~ TW4-6 "jl,g a. U~3a MW-27 51,41
t::S3! TW4-7 il,81 10~3 MW-30 ZS:!fO ,~a, TW4-8 flt.. ,Q3 10~9 MW-31 4!,71'
12.1 a TW4-9 7Q,ll
,~11 TW4-10 za.i~
,1s:a TW4-11 sa.,,
I JS:5: TW4-12 fl.. S:.l
1:z.c;-1 TW4-13 -,i~! L31Ul TW4-28 'L9,1S:
l3.!:S~ TW4-14 I7.&8 la.~a TW4-29 1!-11
u :!.Ga TW4-15 l~1:til t:l.31 TW4-30 lS:~3
I I ... Cl TW4-16 --2!:I., ~8. l2.2.tt TW4-31 1,.,u,.
11 S:S: TW4-17 :i~uiHI 13D!f TW4-32 f7.Q'f
iJCf-1.ta TW4-18 :z3.g5 IJ.tZ TW4-33 79.99
Q92.5'.: TW4-19 'lls5t.. IUS: TW4-34 11.u
bl.A TW4-20 ~A ,a:!.!::t TW4-35 1£15
42!!3~ TW4-21 ia • .,.,.. l2~8 TW4-36 (8,7S:
U!i.3 TW4-22 t.S.ia U!i-TW4-37 10:13
iacs:: TW4-23 :i, •. ~. l'iQI TW4-38 G,Q.10
ll~Q TW4-24 taJa,l.:.t US:.l TW4-39 71,tft
a9S::z TW4-25 ,,. ,12 llll TW4-40 7,a,, 1D
i3~' TW4-26 '2~,'11 1333 TW4-41 9g..q1,
t.1a1 TW4-27 ZS 33 La.13 TW4-42 70.1£ 1aa.:z -Tw'f-'f3 ::zs,q
\
Comments: (Please note the well number for any comments)
-c..,t/-3.0 (t,~
* Depth is measured to the nearest 0.01 feet
Weekly Inspection Form
Date
Time Well Deoth*
System Operational lit no note
Comments any problems/corrective actions)
Flow '"' {) ~ No
I n9.'-I I MW-26 Flow 11 •. 0 ... No
Meter t.ir, .. 4'nq ,..,,. ... No
IIJqf./~ TW4-19 -,, ,-r ,_ Flow '"' ,Si Ila No
Meter g..,n,1 "T t 9lllt No
NA TW4-20 ·N/J... Flow Ar A Yes •
Meter ,.., A Yes •
Flow ,, .. '] ., ... No
Meter Cl nr. I Ii" ' • l 'ar No
1na,~ TWN-2 Flow ,/,. ~ • No
Meter , '1, q, .. n t.t. • No
n ~ 1-,. TW4-22 Flow 11 •. .l. • No
Meter a. " '7 :1 .2 r9 ..., 9s No
n « 1 <t TW4-24 .._ No
Meter , Q Q ,:c ~ ., 1 ll ,; ,_ No
DR o t. TW4-25 Flow Ill.~ .._. No
Meter , , ~ ~ ,_ .. ..,, t.. ~ I;' .-. No
Flow 11 ,.. 'Wis No
n~l/1 TW4-11 Flow • .., n 11N No Meter ~ ,.,.,,., , , • No
1nJ?1a TW4-37 Flow 1'Q l"I "9118 No
Meter .2 ,crc;1C"'1c::ii ,~ .,.. No
n~.,,,~ TW4-39 Flow , •. n • No
nq ::i 1,. TW4-40 Flow I oa. n 'a.. No
oq,~ TW4-41 Flow "· ,, 1111 No
Meter ~ <1. ~ n u -, 1 ~ '-s No
Operat/Onal Ptoblems (Please list ~I numbe~ Y-~ ~-;1.;;~
Corrective Action(s) Taken (Please lrst well nu er):
* Depth is measured to the nearest 0.01 feet.
Weekly Inspection Form
Date Y""f1 ... U
Time Well Deoth* Comments any problemp/correctlye actions)
,nn :i. MW-4 9.\ oq Flow t.1 n 11a. No
15115 No
Flow 1ils No
,._ No
,ne.lJ TW4-19 7~ <~, Flow , :.2 9. 'k: No
Meter q "1 Q 1 ..i '1-,, lfltg No
/I.I A TW4-20 MA Flow t,JA Yes•
Meter "-IA. Yes tie
1 n , q TW4-4 t I) i 7 1 Flow ,,., rA ., k No _.
Meter ~nn~H'ct <::l ,.. No
un:.t.:., a1J,,.L'l,,LJ. nTW.:...:...::..:..N.:...-=2--4-~ ~, '"4u.,~ q\ -+F;...;l.;;;.ow.:..;.__.....,~ ......... -.... /.·-a..---;------=~
Meter ...... 1...,, ~. T\ 111a No
No
1/J q I q TW4-22 r.. 1 ~ t;" Flow I "1 ~ .. No .. No
lnQ11 TW4-24 t'... ,_ • <ZD Flow S( • ,I) .... No
Meter , ~q -,9,n~ r,,(,, lls No
0111.1« TW4-25 ,:.q.1 ~ Flow -No Meter , , ""n-7 ~I'.. fl'! --No
11"1 n-r TW4-1 , n ,. . q 9' Flow 1 -,._ • o ~ No
Meter ~q '"' c;q n .7 .._ No
1oq c:< TW4-2 I I ' , ~ Flow / r~ :1 11K No Meter u,r;z. ~Q, -z , -, 1Jlis No
nQ 1.-1 c;· TW4-11 Q s:: . ~ ~ Flow u:. n 'a. No
Meter 9. .., t.. ~ • ,. ~ 'l!aa No . -
'nit '1.., TW4-21 '7 c. -, n Flow ,c: r_ -No Meter·~ crq, ~ 7t.t ,'1'7:,
Flow , .., ,. '"Is No Meter "'.l , , A l .:;i. , ~..., • n l!IIS No
oq~:::r TW4-39 '7~ rn1 Flow • "7 -<it ,._ No
... No
, n ,2., TW4-40 I ., ".) ·°'q Flow '"'-n , 'Ilia No
'.'lfli&. No
, J'\ 1 ~ TW4-41 SHL ,,u:-Flow ~ ~ .._ No
"Ille 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
Deoth*
Name -;k,z .V~mi~ ~: &f/.:t ... ,-aa-u.
Illne Well
stem O~ratJonaJ, :o note
Comments any problema/coffectfva actions)
Flow c./.n .... No
Meter ':\1, .. , 1.1~Q.c;t:; ,._ No
n a c: ,:-MW-26 Flow ,1.. n • No
Meter r,, q :i ~ o --i .. t ._ No
1,n-=1n TW4-19 Flow 1r: ,_ 'llllll No
Meter , n t:'1,.. ~ 9 t: :J. .._ No
1\.1 A TW4-20 1'.I A. Flow NA Yes•
Meter NA Yes Ill
-11_ -., /I Flow 11. n ..._ No
Meter a,, , c> 1:1 • ~ .. No
nHto TWN-2 Flow , lo I-{ ..._ No
Meter , '] ""'qL.:2 1. ~ .._ No
na"\-:t TW4-22 L.ct. q1 Flow , ,. 1 .... No
Meter Ga, 'l.cuc .~ Wis. No
Ina ".1 ,A TW4-24 t-ft_-,-, Flow "" ,,. 'Jlle No
'81s No
nfA,n TW4-25 9s No
Meter , , ~ , s:r ~ 4' /. Cf 'll!lli No
nq~1 TW4-1 qt.. 4~ Flow 1t.i.n ... No
... No
()Q 1 ("' TW4-2 q ·,.,. "· ,:-Flow , ,_ n 111a No
Meter .., ~ll:" 1-., . q ,-No
t>Qtn TW4-11 sui.1...~ Flow I l. n .,-.. No
Meter fl1:t ~, .,q q ..._ No
()Q.n'-1 TW4-21 7r.. cit r. Flow , r. ~ 111111 No
"llllil No
~ 7 -, ,;-Flow , « . n ... No
Meter ~, 1.t..a.1 "'..,, 1. ,.. No
.., "'. 1.,1 n Flow 1 1t n .._ No
Meter q 4 o tJ "I. 2. :::i '91116 No
n oi &.14 TW 4-40 7 ~ • "I., 'l. Flow 1 ~ D -.. No
'lfm No
0~1,:-TW4-41 « « ~""' Flow I'. t1 "llil •.oJ< oJ...:.
.._ ·No
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number):
"'Depth is measured to the nearest 0.01 feet.
Weekfy Inspection Form
Date 5:-,,-u
Time Well
Name D:cil (drnoo7 AA« ,!£,~~
System Operatio al lff no note
Depth* Comments anv problems/corrective actions)
o-=-ce: MW-4 -..sr 1. <.-> Flow .,.. o k No
Meter 4J ~ L ,;-u 7 n a '"'1 111111 No
D q '\ i\ MW-26 -, n • t. :i Flow , 1. o .. No
Meter /. q ~ r,.tl 2 a II& No
In r::;< TW~19 -, 1 . ,-c;-Flow '"' , 1> No
Meter 1 1 o <11 •• , :2 liM No
TW4-20 Flow N.~ Yes • Meter N"' Yes •
JI)"' TW4-4 Flow ,, •. ~ .. No
Meter CA o 2 c.1 ot q_ ..., 111B No
'O~l)A TWN-2 Flow 1"f, 9 ... No
Meter , ~ ff', .. 7 ~ q q ,. No
IIJCH I TW4-22 Flow · -,~ . .., .... No
Meter ~~ ~ -z.. 71,.. ~ .... No
10 q n i.4 TW4-24 Flow tt..~2 • No
~ No Meter , C\ r. 'l 1../ l'f ,:-q ..., r
D 7"11'.. TW4-25 Flow , !I n .. No
Meter , , I:'~.~ 'it"· 1 r.. 9118 No
JO()( TW4-1 ,n~ 11 .. Flow ,~ .n .... No
Meter ·o q m 9. :z. • No
111 D7 Flow J,., a ... No .,.. No
oq~:::i TW4-11 Flow 1 r .. D ... No
Meter ~ 'IA! 7. l \ ... No
ID 1 "\q TW4-21 Flow ,,. " .. No ..._ No
TW4-37 /.7 "I 2 Flow 11' a .. No Meter !1.,, 1,, ~ ~ 11. ~ 11M No
In q 'l ~ TW4-39 .... No
Meter t:I\_ 4 l L\ t·li.i..t ... No
Jl).:ll TW4-40 -, -a. \ \ Flow J ~. 0 .. No .. No
100"1 TW4-41 a 1. q t... Flow <'. i.1 .... No .... No
Operational Problems (Please list well number): f-r~·~u..Jot.:"*:;i..:.-r"lll""11.1..,"\rt-___________ _ (1, J --H
\ -/
Corrective Action(s) Taken (Please list well number): ----------------
• Depth is measured to the nearest 0.01 feet. /
Weekly Inspection Form
Date
Time Well
Nam<=),a ~ 7,_~ =re::~~/ ternOeratio~I w ::ta
Deoth'* Comments anv problems/corrective actions)
/JO. /{I MW-4 s,:2 43 Flow ~ o • No
Meter "1 ~ ., '.1 ~ ;l, -;tJ ..._ No
1na ~n MW-26 7 ~ . o ~, Flow , t. ,.., • No
Meter ~q,:-q<.il/~,r. 9s No
nq~r;:" TW4-19 <>, D _l;"t.l Flow , 14 , n ._ No
Meter I L ~ '1 "'. '.!l_ ~ "2> .._ No
kl A TW4-20 ... , A. Flow No.· Yes •
Meter N 1>. Yes •
nq 1q TW4-4 ~ t • o I Flow , t,. 4 .., 1iN No
IJ 7 t;' LI TWN-2 <~. "l /. Flow '"". (i( • No
' Meter , "\t .. ~ ~ -r :22_ • No
n ~ /) a TW4-22 ~ < ~ ctcr Flow , 1,.. tJ ~ No
Meter ~4'r ~n 3 ~., V.. No
'tSI,. No
Meter , on 7 o -r <'. ~"~ ._. No
·,.n.,...,, TW4-25 ~., 7 t Flow / "J • '-'lllttr· No
Meter 1 1 ,_ 4 n 51' q.,.1 ~ *8 No
ngl(-r TW4-1 Jn<. ~~ Flow ,1-1 ,_ W. No
.._. No
l()~U1 TW4-2 qc;:{, 11 Flow 1-No
Meter ,., " 1_ t.t n 11. ~ ,._ No
net-:\~ TW4-11 5eq,q7-Flow l'-l,tJ r Wis No
Meter 4 nn ~. ::2.ct 'Jllg No
0 ., '1.e. TW4-21 ..., '"' c; r;-Flow J t'.. i. '£ "89 No
Meter ~ n 1 ::2 ,'w ,,.,. , J ..__ No
IIH\''"' TW4-37 ,~« (jl~ Flow , ~ () .._ No
Meter ~,~1i:-nn .~ 1!1!111 No
n « ::i '\ TW 4-39 -, , ".\ <"'" Flow , « . n ,.._ No
Meter Cll 4-4 "'f -r 1 .... i:;-k No
0 Q ':l , TW4-40 -, ~ 1 , Flow , <I. () 11N No
Meter, f n r'I I .., 11'-~ I 1, Ya5 No
0 ~,..,, TW4-41 cz~ .QI Flow A1/1. Yes a
Meter ':\ q n <-1._,.,., ~ '-< o Yes Ma "
Qpe-nal Problems (Please list well number): (-r.., <./ -w I ?.,-t-f---mJI __ ./-,_ ---,rk• -;.._
Com,clive Actlon(s) Taken (Please list well number)~( 17.r( -, -J,7 .u.. 'P. • / ~·~ "-r.::, e/--t-f~
• Depth is measured to the nearest 0.01 feet.
Tl W II
Weekly Inspection Form
Namez2cn ~.--11., :z;;.;.~c hf.t~, 7
S stem ~rational (ff no note
D th* Comments anv orobl I 1 me e eo ems ~rrect ve a2tlon!J
J 11 q MW-4 ill,.,~ Flow LI ~ 111a No
Meter ~ ~-1 q <A 1 ~.9..1 .,_ No
ID"\i.t MW-26 i'-J r :1_ O Flow ./(. :J 'Wes No
Meter 1n 4 ~ :2 n q .,. 'Ills No
'"' i./ '1.
TW4-19 1a'l, c'ii Flow lb .0 Yes • Meter , , sra '17 ~t:.. Yes •
1\.1 A lW4-20 "-' A Flow
"'' A-Yes • Meter I\IA Yes ...
,~~SIi TW4-4 ~"3 • .-;-~ Flow ,~ .; ; .... No
Meter <a o "'r,, 1 1 , • No
oq_ 1.1 c:i TWN-2 ..,(J :\~ Flow I/,. tJ 'fllB No ,. Meter , ~ ~ 1> 1.4 1 5"7-,_ No I'
(
'rl' c:;" TW4-22 t.1 3 \ Flow I I.. 0 '!ills=" No
Meter H t;..,.-t, ~ , q ... No
JO If' 1W4-24 ,. ,,.. 1.C' Flow J , .. .2 .... No
Meter , Q, , ,,.1 '2-it •· No
Odl.U I TW4-25 '"7 "1' H '2. Flow I I ~ a.. No
Meter , 1..., ".l .fl~ 1.. ,q..., .fl!if' No
l"';\-.:l<° TW4-1 1n<. -3.£. Flow Ll. ~ .... No
Meter ·1,q-, \ Ii -, • ca .... No
J ~ I ':I TW4-2 '"'~ ..,.., Flow ,~ . .n .. No
Meter ,-,s1 ., ~ 1 ~ :J ... No
IDS"~ TW4-11 F(q.~C-Flow )/,. I) .. No
Meter c:i , '1 Lf '-4 :i ... No
IJ tf 3 1,. TW4-21 'T~t:. 2 Flow I I.. '-I .. No
Meter "\D, q 31)-,-~·.c;tn ... No
J 0 .:2 .:l TW4-37 l..'I ,~ Flow Hl.O .... No Meter ::::t , .,. .. , "7 •7 "" -, .... No
•,:lst /{) TW4-39 '"f":l, "'1CII Flow I ,g {) .. No'. ~
Meter q 1-4 '-t 7.~ '"' No
' ~ ... ~ TW4-40 -, l ~ /,. Flow I~ 0 ... No
Meter J no c; "1 /..J t;', 1 '1 1liila No
I "'P. '2 TW4-41 t\D. n ~ Flow I... I] Tis" No
Meter ~q \ ~t:.1. ,q ..... No
Operational Problems (Please 11st well number): I,-.,./ .. 1 _; ~ n "\
kL.-_.,.,L-~~{I }
Corrective Action(sy:;ken (Please l'.:,all numberL 'R ~,, /" / (} _¥7~+-u.,..,,~:,-.........
"""ri.,uo./ ._,,. ,I dlt , ?. /' i'>A 'D n ,.. ,'",. ,., (._ -_J },· f f
'/ ~ I I J I
.. h is measured e nearest 0.01 feet. Dept
Monthly Depth Check Form
Date S/l'l>l~o~ Name ::C~no,(" HoH·1~tl
Time Well Depth* Time Well De~th*
Q~!l,( MW-4 8i~.!::fat 12S6 TWN-1 ~~ ~b
0,3a. TW4-1 Jo~.!3 os~ TWN-2 ~8-'Z-~
oq z'-J TW4-2 1ai."5 1.:t5~ TWN-3 ~'i,J.'I
1:31~ TW4-3 '25 ..2. [ IZl.S TWN-4 U,$1
O't'i 0 TW4-4 i'i.77 l~ll TWN-7 71,'f7
,~q TW4-5 11.33 ,i~ TWN-18 ,~.s.2
~1:J TW4-6 -,~,-rs I ~J=.t MW-27 :5~.~5
\~J~ TW4-7 ~i.77 \'!>03 MW-30 ].5, lA
IJ~I TW4-8 85,~0 \~1 MW-31 C:,,. 'll:,
I~ TW4-9 1~,36 ,~~l TW4-10 ~1.]'i
O~lj TW4-11 ~1.,~
1~00 TW4-12 5'2, 2.j
ISOL TW4-13 57.,35 13Q1. TW4-28 '::1"1. 14 • l:30'f TW4-14 11,3~ l~~H( TW4-29 ,c:,,oo
O'tl5 TW4-15 ,.2.,:i.1 [~~ TW4-30 15.I~
IZ.~S TW4-16 i~.16 liS.b TW4-31 7,.1~
\l.51 TW4-17 i6'12-,~~ 'TW4-32 ~-~ s,.g,
l"l~I TW4-18 ]3.~~ rz.~~ TW4-33 7°8 ,75
\ OC>.5 TW4-19 10,12 l~Q TW4-34 77.'~0
tvl!J. TW4-20 /\I{~ 1:l5;t TW4-35 75.,l.S
l? 8'i3 TW4-21 7j.~I 1.3~1 TW4-36 58,~5
O'fO~ TW4-22 :za.,r3 DjOi, TW4-37 ryi.j .50
l~lS TW4-23 1'21~L ll2i TW4-38 b:o.3g
~85~ TW4-24 <:,7,2_~ 0'110 TW4-39 "10.73
O!~I' TW4-25 b'-1 .JI Oj"-5 TW4-40 7'J.., )1
1~13 TW4-26 71.Lsc... OjJL. TW4-41 gg,7~
l~~J TW4-27 70,, IS I '2. '1 :t TW4-42 10.5~
Comments: (Please note the well number for any comments)
t.25~ r\,.)~-jJ ]j.'3,K
* Depth is measured to the nearest 0.01 feet.
Weekly Inspection Form
Date
System Operat1"a1 tff no note
Deoth* Comments any problems/corrective actions) Time Well
1nct1~ MW-4 ~, ('t, Flow '1,l'J .. No
Meter~ 1~ t.t.~11. 1"1 1!1118 No
"« e:'-, MW-26 -, 1, ~er Flow 1 "-. ~ • No
Meter 711 n r;-7 ~ Id 1lle No
TW4-19 -?~ <c--Flow It. n .._. No
Meter,::,. 7s-C/h, q7 1!N No
A/ ./1 TW4-20 1\.1 A Flow I\./ .A Yes •
l'JQ~; TW4-4 q c.l , "9. t-{ Flow I lb 0 "" ... No
Meter ~ o i;-I;"' 1n q i "fllll No
IJfJ~{') TWN-2 ~?; JI) Flow IL /J • No Meter 1 ~ q ";f .;;--<: , t, ... No
119. u A TW4-22 L. e:, t.f /) Flow It..~ ... No
Meter .:ui '7 Lf -, a-· .3 . ~ No
IJ ~-:r ~ TW4-24 /J)/J,q/ Flow 1/-' ~ .lla. No Meter , q , ,. , r:;-i:-. t7 r-'Ila No
n~ '11/ TW4-25 ~~. t;'7,. Flow I j. 2 'tiN No
Meter 1 , .., '!JI 7 t'Tt:: ;-~ was No
na,..., TW4-1 '"~ 'l/"J Flow JU./J k No
Meter 1.cr 77/...1.~ -'lllli No
1 nan.., TW4-2 QK,. ~1 Flow JI~ 1-1 • No
Meter . "
"' t/JQ 1 7 t' .... ~ • No
nqn?. TW4-11 dQ,-,< Flow ,~.1 ,._ No
Meter a '1 ~ o ., .:J ..._No
{)~, S\ TW4-21 -,<.~~ Flow J/_. ~ ... No
Meter -:in;,. '-< ;-:l ,11~ '18 No
no.ll 1,. TW4-37 t'../,. '75 Flow ,,g .~ ... No Meter "' , 'T .., ~ , If tr .. ~o
Meter 4 ~ ~ ·"" 1... ~ ../
... No ,.... No ~ No
No
o~K~ TW4-39 ., ~, .2 ~ Flow 1tA./J
Meter , n/1t::f..., « c:t,-, ~
1nct 'l ~ TW4-41 ~.q .,..;ir Flow ~-/J ... No
~ No Meter ...,.,q "1 ~ ~ 2 . 11
Operational Problems (Please list well number): ~~,..~·u..._~_.t-f-': ... ~~-./J..,,\1 _________ _ ( °'t L.~J .f __ ...,JI I
Corrective Action(s) Taken (Please list well number): '-/
* Depth Is measured to the nearest 0.01 feet.
Date f-'J<-2,,+
Weekly Inspection Form
Name:.,A&a G:-4rmi ,;;.re ,/J,i~:z
Time Well Deoth*
Svstem Opel'tional Clf no note
Comments anv problems/corrective actions)
, r, a~ MW-4 Flow 4 n ,._, No
Meter ~ :l.<-1.'-t:~ la I I I ..,.., No
Flow , /.. I-/ '1111 No
, ~,:, ,::-TW4-19
Meter _-tn~ 1 '5'~ 1.. No ...__~;;..._---~
Ffow /7 ~ .. No
Meter 1i.t ~, &.'2 :12. .,_ No
NA TW4-20 Flow NA Yes ..
Meter tJA Yes ..
Flow Ii:,. ~ ., -... No
Meter i f) /,, «.( n ~ n .. No
1 n ~,. lW4-4
oqo; TWN-2 Flow f /,, D .. No
Meter J,., n 11t;"'. :J.R ... No
1nq ~"" TW4-22 /,.,, ., l Flow , 1,, 0 .. No
Meter g~ q ii •·P··\ i:.\ -. No
()q I w TW4-24 ~q .~I Flow lt....~ .... No
Meter I q ~ , '-I 0i.q, .2 7 .. No
Oi~S TW4-25 t,q 2-,,, Flow J -::J . '-I .... No
Meter , , Q « <i "1'1,lf~ ... No
11114 TW4-1 10<.-z~ Flow J :.2 0 ... No
Meter -~q~.., 1 -r 1 'lie No
'ooi<S1 TW4-2 11 n o..., Flow J '2,, .~ 111111 No
Meter 4~q'-JoQ ~ ,_ No
()q,: I TW4-11 4n f'l 1 Flow J:l.Q '1111 No
Meter a ut <a '6 . -J. ~ .. No
Flow I/:. I./ ... No
Meter ~ t1 "3 ;., c.·"" 7 • ..,~ ... No
ro-.~~ TW4-37 Flow lll.O ... No Meter -.1 , ~ 1 -, r,,~ /.. 9116 NO
Flow 1-r. I--.... No
Meter q IJ' 1 :1 ,:-... , • -,, 1IM:-No
JO'"I~ TW4-40 Flow I~ I> .. No
Meter , n, ,., ~ ~ 1. ,,() ~ 'Ills-No
81 .fl~ Flow ~ (,. .... No
Meter ~ca 1i r;' a a ~ t./ 'Ills 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
Time Well
MW-4
Name Peco Cr: l«ycnao • Noc:c Hel[,~, 2 .
System Operational (tf no note
Deoth* Comments anv probfema/correctlve actions)
~tJ Q ::i. Flow , ::, ,~ .._ No
Meter ~~o 1118 ':\1 'Ille No ,n,.,~ MW-26 74 r,,< Flow , l.. n --No
Meter -rn o./ ci 4 '3 1 ... No
1 1 L.) c:-TW4-19 , ~ • 1 i:;-Flow I t. o .. No
Meter 1 5''-1 o, ,:" 'J..t,/ • No
NA TW4-20 MA Flow M o.. Yes • Meter "'' A Yes •
5{ l.f', /o L/ Flow 1u ,:J,. ., .... No
Meter R o -, ::i 1..1 <-1 • n .... No
o q c: '-I TWN-2 Flow 11.,4 R .. No
Meter 1 ... , -, .2 q . ~ -, .... No
1 o J -r TW4-22 t:.; -; '-I Flow .,,. o .. No
:111a No
1 on Q TW4-24 e,.q ri ~ Flow , rn .2 .... No .. No
nq~'"' TW4-25 7,; ;~ Flow 12.0 • No .. No
1311'> TW4-1 inc;-<< Flow 1-:J....";t .... No
Meter 1 o,q n,-, r. , .... No
1 2 '5" <" TW4-2 , 1 n ~"' Flow "· n .. No
Meter .., q a o .,. ":\ . z:;-1llis No
Jtq, L-41.. Flow It;. n ... No
Meter Qr; t: n. no 'la No
1o91 n TW4-21 ,~. ~, Flow ,,,. ~ 1-No
Meter ~Dc..fn/,,. ti,~ t:" '1 ... No
1n~4 TW4-37 ~~ JO Flow 1~ n • No
Meter 'c) I ~ "' '-I I ~. LI ... No
10 -,. \ TW4-39 c...q, ~ i,"" Flow 1 ~. a · '1115 No
Meter q .,.-3 ~ '-I ;" r:; No
oq1 t TW4-40 ..... No
Meter 1 () 1 ~ < ~5"': n I-{ ..... No
Qq, n TW4-41 ~H~ , o Flow /',,.. /1 .. No
YM No
~ ..
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number): ----------------
* Depth is measured to the nearest 0.01 feet.
yveekly Inspection Form
Date G-/3-£+ Name Dua Cdym, ~~-:. 1-£,V.~,
vstem oerati-O~J'' no note
Time Well Depth* Comments anv problems/correctJve actions)
I ;l 1..I ', MW-4 ~'.'>,. \ \ Flow "', () 'lillg No
Meter 3 ":I IHi '.:I. n SI a./ , ._ No
I() '2. .:t MW-26 -, f) IA{. Flow I(. rJ .. No
Meter 70-, :1 t:. ~ , .... No
r~~o TW4-19 ..., 1.q~ Flow Jt. 0 1!!!a No
Meter , t. 4 7qo, q() ,,_ No
J~OY TW4-4 ~(), "2n Flow ---,,_. No It:..-,
Meter RtJ 77 /J 7 9: ~ No
()~~ I TWN-2 -:1c;-,, Flow /~ n ~ No
Meter , ,4 ".l a -:J. '-{ • ~ 7 'lei No
I I) I I\ TW4-22 t:.1 .. ~i;-Flow ,~ /J ... No
Meter ,;t q ~ 1" ... t: ~ , ... No
J(>(}Q TW4-24 ,::::q. /q Flow I (',. :2. '!Jill No
Meter , q 1 q q ~ 'i". ~ ·; ... No
l)q&..I,~ TW4-25 /In Ir,. .. , Flow I :J. I '.l ...... No
Meter , ~n-,. 7Sl() qn \ .. No
J ·1,;"'"'\ TW4-1 UJ t:; r; I Flow 1 ::J • '"
..,. No
Meter ~qq~ ,~_q • No
( 1 "'l. '9. TW4-2 qq flt~ Flow l /,,, /J ... No
Meter "19 o qt;, 9.. o • No .,
1~~0 TW4-11 qo (}q Flow J Gt /'} ... No
Meter t:t c. ~ G. :1 ~ ... No
1oq~2 TW4-21 ,0.1< Flow . rt, Ll .. No
Meter ·30'-J -,~1.-11,( 7 7 'Ila No
IOI f. TW4-37 ..,,.., ~r Flow I~ ,{) .. No
Meter :l\~ ,1 .... G\1,... 11111 No
1n21 TW4-39 71 ~/,,. Flow I~ rJ .... No
Meter .q .....-<~ 3 1 .c.
_,
1!116 No
\?,\-i_ TW4-40 -, ~ .:2.t;" Flow l'iC.11 .... No
Meter , o 1.. 11 1. 1 -, • ~ 1 '!Ilg No
I 'l. ,;-~ TW4-41 qo ;:t_2 Flow t;. ~ 1 .. No
Meter 39 r;--:t, oq r.t> ,.. 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 Name V...: .. c. f.;• « .,4 :z;;.,,c ,&'4~
vstem Operationat«f no note
Time Well Depth* Comments anv oroblems/correctlve actions)
)lc;t~A MW-4 9. J.. qn Flow t./ () 'Ila No
Meter ~ :i. \ c;-r,, t:" 1 :1. ... No
()q \ ~ MW-26 q IA~~ Flow /I,. () 111115 No
Meter ..., n Q --.i. 1 n ~ ... No
I (Jo;'/} TW4-19 '1~ -r< Flow Jr,, _fl ... No
Meter , -, i-4, 1,,;_. .;-1 '!ii; No
IH\ '-In TW4-4 ;~.c;"/.f Flow J'{), g ..... No
Meter go S? ,;-q ;-: t;'" ,__ No
IOl'\<\ TWN-2 -,;9 It Flow I ,1, I) ,a. No
Meter , ..,'-f 1 ~ 7. ~"' 'a. No
TW4-22 Flow
, .... No /) q '-I '-I (,. 1 j~ I(,. () I
Meter ~q 4 'l.-, r~ 1 I • No
1nqc;-4 TW4-24 c.-f'A '-I L/ Flow it,. n ... No
Meter , ct~ 1..11.4 ·-,,q -,,.i:;-l!lls No
101q TW4-25 '"10.~ 1 Flow I() 9.. ... No
Meter , 'l. ,, 2 '"1 i. ?.., , ... No
n 9. ,:-:i. TW4-1 q 9. /i's,' Flow 1.2 ~ ... No
Meter '"I n n ; -2 \ 1. ~ No
/)qi)" TW4-2 I I ('} '\O Flow I (,hO ... No
Meter ~ q, 'T.~, n 'fl1ls. No
nqr() TW4-11 qi) I q Flow 11,,_n .... No
" Meter Q"'f ~1 ~ 3 '1111 No
t o~.oi TW4-21 -,,<, ~() Flow I/,, L/ ... No
Meter "'J.f'l'5""7 ,;-7'1.. ""'l"J -No
,,q-,.-,. TW4-37 C. 1 . '"' ,;---Flow I 4l (') ... No
Meter :J. ,6n~,.-, 1 q ,_ No -
oq2"1 TW4-39 .., ~ I /A Flow YJ , J q l'l ... No
Meter q c; ~ 'R n "'· ~ 'la No
OR~< TW4-40 "'7 ~ I-'/ .:I Flow J ~. () --No
Meter I a .2 ~ '-J I i,-1;31./ ,.. No
l?Rt.ft;" TW4-41 ~q q~ Flow r;. n • No
Meter ~ °' r_ .2 · n ~ . "3 '5"""' ..... 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 4-az-aa
ystem Operatio I (tf no note
Time Well Deoth* Comments anv problems/corrective actions)
oq2.1.1 MW-4 ~0.9:~ Flow Lo{, 0 • No
Meter~ ~i ~ ~ ,.q q:i .... No
{)q/)1./ MW-26 II 1. q '"f Flow I{,.. .::a. • No
Meter -r, \ ~~ :l. ".'l, ... No
I fl In TW4-19 -, 1-f I'.. /) Flow J /',, /'J "5 No
Meter J c;t .c;-7.q L lf,. ~ No
oqi.f I TW4-4 "7 ":a. '1 :'1, Flow J lD (l ... No
Meter ~nq ~ t-7. '1 .... No
lrt~1 TWN-2 ,<,g l 1. ,-Flow I~ 0 • No
Meter , ~ c;-7. -9. ~ q G. --No
1041\0q TW4-22 7"1, /9. Flow It. ~ 11s No
Meter~q1.o,-, ~ ... No
t1 ~()~ TW4-24 G./.. q c.t Flow IG. 0 ..... No
Meter , q ~~ q ~'l 1./1'.. ... No
07~n TW4-25 ,0 (,,~ Flow I() 9-• No
Meter 1 ':1. t C\ -:J. 9. o -r 1 .... No
oq.2q TW4-1 JOt;".~<, Flow I~ ,9:. .,., No
Meter ..,oo,p.,;-::J n ... No
'
OCfl<J TW4-2 4i:-. .2 7 Flow I(.,. (J ... No
Meter ,.,q~1 ... 7q.~ -No
()q I I TW4-11 t,t Q • c;"2) Flow ..... ~ ... No
Meter QQ.Q...-. '1Cl '111111 No
n7t./n TW4-21 i'-1 ~ ,;-Flow I IA "' ~ No
Meter ~/)/-l ~ ".l ".2 nn ... No
n~1~ TW4-37 l'.."1 °', Flow I~ ./J ... No
Meter ~ , q ~ q t. ~ t .. No
nRt:8 TW4-39 "'In ,n Flow 11LO ... No
Meter .q lo o 11..1 ~ 1 ,-. No
O"lt:"I TW4-40 -,~ ~.-::1 Flow I G. fl ... No
Meter 1n":l.a-:2,, 71'.. oi-4 'BIi No
nq 1 t;' TW4-41 Q(\ 19. Flow /A 0 .. No
Meter ~q.., ,~'-f r., 1 ... 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 7-£-Aa. Name :p,.co & lyma°;:, :z:;:;;..,,c Hat?~.-
ystem Operatio I (If no note
1· 1me W II e D th* eo: C ts bl / I l ommen anl£ ero ems corrective act ons
nQ ~ n MW-4 ~l.. I.ft. Flow ,J 11 ,l!ls No
Meter 1 ~ 1 n 4 1 2 on lferr-No
n,~n MW-26 71,. I&.-/ Flow· lf'A. '.l_ .. No
Meter , 1.., n-51 ~-.l. .. No
11"3t;' TW4-19 '-1 --:1,. I:{"/ Flow I '"T '-i .... No -Meter , q C\ ":l -An. 2.n -No
r,,qi.4r. TW4-4 ~ ,;, 2_«;" Flow ,1. D • No
Meter c;u n R a:; t;""_ £1 'las No
09.n1 TWN-2 ~8.~l Flow J '-· 0 ~ No
Meter , ""' ,~ IA H c:-. '1 t,,. as. No
ID~ '11 TW4-22 7:J. J"l. Flow }(,. 1./-1lw-No
Meter ~qqo 3t.. t .. No
oq., "-TW4-24 q(""":11; Flow IC... 0
.._ No
Meter 1q'-4L.t\~q ID 'fa-No
0 -, a::-J TW4-25 t,q,<< Flow ,n.i -.as No
Meter 1 :11~Y'1~ ,'3~ ... No
n~~n TW4-1 I ()~.Q.2 Flow I ~-I.( ... No
Meter "f() 1 fl-,...,., ~ No
1oq11 TW4-2 , 11.~4 Flow ,, ... 0 '91B. No
Meter "' ~ '3 ,,,. 7 q '1 --No
n~<q TW4-11 ~~ .,I-Flow I &,I.~ ... No
Meter Gl q n r~ 1 (,, .... No
n ..,,,,..; TW4-21 q 1 &.fO Flow I a.I• 'l, ... No
Meter "2 n t... q 1 1 , • '1 ; ... No
no.~::, rw4..:37 t..~ 0~ Flow I '§C ,If) ... No -Meter ~ t0t14 ~,A,~ ..... No
fl A I.{() TW4-39 "1 ~ "1 '1 Flow 19.,0 ... No
Meter q G.".l-, ~~r,, -No
oqi:'"' TW4-40 i"'J.,~n Flow t'S(,t) ... No
Meter I n ~ 'l. '1 q n .a , 1is No
/)Q"2,.q TW4-41 ~q ~'?ii Flow (,. {J ... No
Meter -;q ~ :l -r 1_ , n .. No
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number): ----------------
* 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 Lyman
6/27 /2022-6/28/2022
Depth to Depth to
Date Time Well Water (ft.) Date Time Well Water (ft.)
6/27/2022 1314 MW-01 65.08 6/28/2022 850 MW-04 81.95
6/27/2022 810 MW-02 109.65 6/28/2022 854 TW4-0l 105.23
6/27/2022 1039 MW-03A 84.08 6/28/2022 846 TW4-02 110.18
6/27/2022 1254 MW-05 108.28 6/28/2022 928 TW4-03 64.66
6/27/2022 1409 MW-II 85.29 6/28/2022 902 TW4-04 84.12
6/27/2022 1249 MW-12 109,68 6/28/2022 924 TW4-05 71.97
6/27/2022 1440 MW-14 102.02 6/28/2022 944 TW4-06 79.13
6/27/2022 1435 MW-15 105.46 6/28/2022 941 TW4-07 82.21
6/27/2022 1031 MW-17 72 09 6/28/2022 937 TW4-08 86.60
6/27/2022 1312 MW-18 74.25 6/28/2022 920 TW4-09 69.91
6/27/2022 1259 MW-19 66.67 6/28/2022 917 TW4-IO 69.42
6/27/2022 940 MW-20 88,01 6/28/2022 842 TW4-ll 89.54
6/27/2022 923 MW-22 66.41 6/28/2022 1030 TW4-12 55.78
6/27/2022 1245 MW-23 113.97 6/28/2022 1026 TW4-13 56.83
6/27/2022 1239 MW-24A I 10.65 6/28/2022 1018 TW4-14 77.37
6/27/2022 1236 MW-24 109.72 6/28/2022 914 TW4-16 73.72
6/27/2022 1322 MW-25 82,03 6/28/2022 1220 TW4-18 73.94
6/27/2022 837 MW-26 83.22 6/28/2022 740 TW4-l9 72.17
6/27/2022 1040 MW-27 58.76 6/28/2022 815 TW4-2l 72.15
6/27/2022 1231 MW-28 74.75 6/28/2022 750 TW4-22 69.51
6/27/2022 1228 MW-29 107.25 6/28/2022 1051 TW4-23 75.64
6/27/2022 1300 MW-30 75.48 6/28/2022 825 TW4-24 69.61
6/27/2022 1307 MW-31 69.75 6/28/2022 819 TW4-25 70.04
6/27/2022 1314 MW-32 82.88 6/28/2022 948 TW4-26 73.95
6/27/2022 1414 MW-33 DRY 6/28/2022 958 TW4-27 79.09
6/27/2022 1424 MW-34 107.39 6/28/2022 1034 TW4-28 49.25
6/27/2022 1417 MW-35 112.51 6/28/2022 954 TW4-29 78.38
6/27/2022 1420 MW-36 110.58 6/28/2022 1006 TW4-30 75.04
6/27/2022 1430 MW-37 106.82 6/28/2022 1002 TW4-31 76.28
6/27/2022 927 MW-38 70.22 6/28/2022 1038 TW4-32 56.28
6/27/2022 931 MW-39 64.65 6/28/2022 1043 TW4-33 78.16
6/27/2022 1023 MW-40 79.98 6/28/2022 949 TW4-34 77.58
6/28/2022 1010 TW4-35 75.40
MW-26 = TW4-15 6/28/2022 1022 TW4-36 58.13
MW-32=TW4-17 6/28/2022 829 TW4-37 72.44
Comments: 6/28/2022 932 TW4-38 60.01
6/28/2022 833 TW4-39 70.77
6/28/2022 906 TW4-40 73.19
6/28/2022 858 TW4-41 89.99
6/28/2022 1047 TW4-42 69.77
6/28/2022 1014 TW4-43 73.61
Date Time
6/28/2022 1256
6/28/2022 1304
6/28/2022 1054
6/28/2022 1126
6/28/2022 1121
6/28/2022 1203
6/28/2022 1130
6/28/2022 1059
6/28/2022 1049
6/28/2022 1308
6/28/2022 1315
6/28/2022 1253
6/28/2022 1250
6/28/2022 1044
6/28/2022 1247
6/28/2022 1325
6/28/2022 1322
6/28/2022 1027
6/28/2022 1024
6/28/2022 805
6/28/2022 1019
6/28/2022 1015
6/28/2022 1013
6/28/2022 1108
6/28/2022 1049
6/28/2022 1045
6/28/2022 1009
6/28/2022 935
6/28/2022 1006
6/28/2022 953
6/28/2022 950
6/28/2022 944
6/28/2022 1001
6/28/2022 947
6/28/2022 958
Well
PIEZ-01
PIEZ-02
PIEZ-03A
PIEZ-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-10
DR-II
DR-12
DR-13
DR-14
DR-15
DR-17
DR-19
DR-20
DR-21
DR-22
DR-23
DR-24
Depth to
Water (ft.)
67.64
46.90
54.55
67.28
65.95
70.18
58.69
44.22
63.18
81.05
80.41
59.35
48.00
63.11
54.50
78.17
79.29
83.30
94.01
92.08
51.40
86.72
78.42
97.93
DRY
69,78
76.34
92.98
64.75
63.33
55.53
100.72
DRY
70.59
44.83
@ estimated dry area
TW4-43 temporary perched monitoring
~ 5523 well installed September, 2021
showing elevation in feet amsl
TWN-20
IJ5564
TW4-42
9 5525
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-38 perched monitoring well
-9-5463 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 . . . <>5569 temporary perc e nitrate morntonng
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
i-.: 11~{.
-~.~ l;-· .J~'/,f'..~ ,1'.'l;,;Z@:1', -. ~1::t: ... ·.~~; _. ... xci.
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; TW4-1 , TW4-2 and TW4-11 water levels a.re below the base of the Burro Canyon Formation
HYDRO
GEO
CHEM, INC.
KRIGED 2nd QUARTER, 2022 WATER LEVELS
WHITE MESA SITE
APPROVED DATE REFERENCE
H:/718000/aug22/WUUwl0622.srf
FIGURE
D-1
--,, ,,
I I
II
@
TW4-43
~5523
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 :
and for MW-26, TW4-19, TW4-21,TW4-25,
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
TWN-20 temporary perched nitrate monitoring
C 5564 well installed April, 2021showing
elevation in feet amsl
TW4-42 temporary perched monitoring well
¢ 5525 installed April, 2019 showing
elevation in feet amsl
MW-38 perched monitoring well
"9-5463 installed February, 2018 showing
elevation in feet amsl
M;-~504 perched monitoring well showing
elevation in feet amsl
TW4-12 h d . . II O 5568 temporary perc e monitoring we
· showing elevation in feet amsl
TWN-7 . . . <>5569 temporary perched nitrate monitoring
well showing elevation in feet amsl
PIEZ-1 perched piezometer showing
(.,) 5588 elevation in feet amsl
RUIN SPRING
<!, 5380 seep or spring showing
elevation in feet amsl
''&:."£ i• . ' 'F.i01,, :,., -· • .. ... ~ ~ .. ·.-.,;;., .. :-"''•""f.'• .,.,;. . . .. ~ .......... .,," :)eM'"if!!!,,iir.. s.:-~:.. j; ~:.. . ~. ,,,,,...A·r:1..~:; ~s:,'P,.;2!o: ~ __ ,,e;~:riit~~~rb ,-~ ~ 11 er~~ .. ----e.·
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; TW4-1, TW4-2 and TW4-11 water levels are below the base of the Burro Canyon Fonmation
HYDRO
GEO
CHEM, INC.
KRIGED 2nd QUARTER, 2022 WATER LEVELS
AND ESTIMATED CAPTURE ZONES
WHITE MESA SITE
APPROVED DATE FIGURE
)
REFERENCE
H:/718000/aug22/WUUwl0622cz2.srf D-2
c,,-
c?'" #,
II
• TW4-43
~5523
TW4-42
Q5525
MW-25
.5531
TW4-7
0 5530
PIEZ-2
Q 5582
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;
and for MW-26, TW4-19, TW4-21,TW4-25,
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
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; TW4-1 , TW4-2 and TW4-11 water levels are below the base of the Burro Canyon Formation
HYDRO
GEO
CHEM, INC. APPROVED
KRIGED 2nd QUARTER, 2022 WATER LEVELS
AND ESTIMATED CAPTURE ZONES
WHITE MESA SITE
detail ma
DATE REFERENCE
H :/718000/aug22/WL/Uw0622cz.srf
FIGURE
0-3
TabE
Kriged Previous Quarter Groundwater Contour Map
@
TW4-43
~5523
estimated dry area
temporary perched monitoring
well installed September, 2021
showing elevation in feet amsl
TWN-20 temporary perched nitrate monitoring
1]5565 well installed April, 2021showing
elevation in feet amsl
TW4-42 temporary perched monitoring well
¢ 5524 installed April, 2019 showing
elevation in feet amsl
MW-38 perched monitoring well
-¢"5463 installed February, 2018 showing
elevation in feet amsl
M;~504 perched monitoring well showing
elevation in feet amsl
TW4-12 h . . II
0 5568 temporary perc ed monitoring we
showing elevation In feet amsl
TWN-7 h d . t ·t . A s 69 temporary perc e rntra e morn onng
V 5 well showing elevation in feet amsl
PIEZ-1 perched piezometer showing
'-5588 elevation in feet amsl
RUIN SPRING
c!, 5380 seep or spring showing
elevation in feet amsl
~
.1 .. •·';lff;•
1 ·1-·: ,· <'-~' ·,~· -,~,;>\~ ,,.,:_/!J .• ~.' ml e' -. . :;;,,r:.,t'6...., ... <.'. ~ 9-JJ~./ ... s~ \; -~~<~ ~:t:#Dl;t!&JJ-~
NOTES: MW-4, MW-26, 1W4-1, TW4--2-, _TW_4_-4_,-,w-4"".""1""1.-1W-.. 4--1-9 .. , .. ,w=4•-.2 ... 1"".-TW4-37, TW4-39, TW4-40 and TW4-41 are chloroform pumping wells;
1W4-22, TW4-24, 1W4-25 and TWN-2 are nitrate pumping wells; TW4-1, TW4-2 and 1W4-11 water levels are below the base of the Burro Cany-on Formation
HYDRO
GEO
CHEM,INC.
KRIGED 1st QUARTER, 2022 WATER LEVELS
WHITE MESA SITE
APPROVED DATE REFERENCE FIGURE
H :/718000/may22/WUUwl0322.srf 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 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
5,620.77 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 Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitorinl; (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 MW4
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
5,620.77 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 I 1/14/00 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 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
5,620.77 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 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
5,620.77 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 MW 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
(WL) (LSD) (MP) Riser (L) Monitoring (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
N 0 -0 0
Depth Below Measuring Point (ft.)
00 0 0\ 0
.j::..
0 N 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 i -07/12/97 ~ ~
11/24/98 ~ ~ "e
04/07/00 -=-
08/20/01 0 -<
01/02/03 ~ ~
~ 05/16/04 ....
13
09/28/05 ~ --02/10/07 ?
C"'
06/24/08 -13
11/06/09 "e --
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
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
5,537.23 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
--N -0 0
Depth Below Measuring Point (ft.) -0 0
l,C)
0 00 0 -.J 0 0\ 0 VI 0
11/08/99
04/06/00
09/03/00
01/31/01
06/30/01
11/27/01
04/26/02
09/23/02
02/20/03
07/20/03
12/17/03
05/15/04
10/12/04
03/11/05
-08/08/05
01/05/06
06/04/06 ~
11/01/06 ~ 03/31/07 ~
08/28/07 I ,-..
01/25/08 ~ 06/23/08
11/20/08 """ ~ 04/19/09 "1
09/16/09 ~
-02/13/10 ~
"'O 07/13/10 ;. 12/10/10
05/09/11 0
10/06/11 ~ ~ 03/04/12 "1
08/01/12 ~
12/29/12 ....
9 05/28/13 ~
10/25/13 -..
03/24/14 ??
08/21/14 O"
01/18/15 -9 06/17/15 "'O 11/14/15 '-"
04/12/16
09/09/16
02/06/17
07/06/17
12/03/17
05/02/18
09/29/18
02/26/19
07/26/19
12/23/19
05/21/20
10/18/20
03/17/21
08/14/21
01/11/22
06/10/22
11/07/22
04/06/23
09/03/23
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 05115/00 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 11/09/00 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 l.62 120.900
5,551.59 04/30/01 73.13 71.51
5,552.03 05/31/0 l 72.69 71.07
5,552.33 06/21/0 l 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 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
5,549.89 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
5550.52 11/07/06 74.20 72.58
5552.89 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
---w N -0 0 0
Depth Below Measuring Point (ft.) -8 \C)
0 00 0 -J O'I 0 0 Vl 0
11/08/99
04/06/00
-09/03/00
01/31/01
06/30/01
11/27/01
04/26/02
09/23/02
02/20/03
07/20/03
12/17/03
05/15/04
10/12/04
03/11/05
08/08/05
01/05/06
06/04/06 ~
11/01/06 ~ 03/31/07 ~ I 08/28/07 N
01/25/08 ~ 06/23/08
11/20/08 -~ 04/19/09 ..,
09/16/09 t::,
02/13/10 ~ "C 07/13/10 -12/10/10 =-
05/09/11 0
10/06/11 < ~ 03/04/12 ..,
-08/01/12 ~
12/29/12 -· e 05/28/13 ~
10/25/13 ,-..
-03/24/14 ?
08/21/14 C"
01/18/15 -e 06/17/15 "C 11/14/15 ,_,
04/12/16
09/09/16
02/06/17
07/06/17
12/03/17
05/02/18
09/29/18
02/26/19
07/26/19
12/23/19
05/21/20
10/18/20
03/17/21
-08/14/21
01/11/22
06/10/22
11/07/22
04/06/23
09/03/23
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 01/02/00 65.30 64.28
5,567.03 01/10/00 65.20 64.18
5,566.83 01/17/00 65.40 64.38
5,567.13 01/24/00 65.10 64.08
5,567.33 02/01/00 64.90 63.88
5,567.13 02/07/00 65.10 64.08
5,567.43 02/14/00 64.80 63.78
5,567.63 02/23/00 64.60 63.58
5,567.73 03/01/00 64.50 63.48
5,567.83 03/08/00 64.40 63.38
5,567.70 03/15/00 64.53 63.51
5,568.03 03/20/00 64.20 63.18
5,567.93 03/29/00 64.30 63.28
5,567.63 04/04/00 64.60 63.58
5,567.83 04/13/00 64.40 63.38
5,568.03 04/21/00 64.20 63.18
5,568.23 04/28/00 64.00 62.98
5,568.13 05/01/00 64.10 63.08
5,568.53 05/11/00 63.70 62.68
5,568.23 05/15/00 64.00 62.98
5,568.53 05/25/00 63.70 62.68
5,568.61 06/09/00 63.62 62.60
5,568.69 06/16/00 63.54 62.52
5,568.45 06/26/00 63.78 62.76
5,568.61 07/06/00 63.62 62.60
5,568.61 07/06/00 63.62 62.60
5,568.49 07/13/00 63.74 62.72
5,568.55 07/18/00 63.68 62.66
5,568.65 07/27/00 63.58 62.56
5,568.73 08/02/00 63.50 62.48
5,568.77 08/09/00 63.46 62.44
5,568.76 08/16/00 63.47 62.45
5,568.95 08/31/00 63.28 62.26
5,568.49 09/08/00 63.74 62.72
5,568.67 09/13/00 63.56 62.54
5,568.96 09/20/00 63.27 62.25
5,568.93 10/05/00 63.30 62.28
5,569.34 11/09/00 62.89 61.87
5,568.79 12/06/00 63.44 62.42
5,569.11 01/03/01 63.12 62.10
5,569.75 02/09/01 62.48 61.46
5,570.34 03/28/01 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 04/30/01 61.62 60.60
5,570.70 05/31/01 61.53 60.51
5,570.88 06/21/01 61.35 60.33
5,571.02 07/10/01 61.21 60.19
5,571.70 08/20/01 60.53 59.51
5,572.12 09/19/01 60.11 59.09
5,572.08 10/02/01 60.15 59.13
5,572.78 11/08/01 59.45 58.43
5,573.27 12/03/01 58.96 57.94
5,573.47 01/03/02 58.76 57.74
5,573.93 02/06/02 58.30 57.28
5,574.75 03/26/02 57.48 56.46
5,574.26 04/09/02 57.97 56.95
5,575.39 05/23/02 56.84 55.82
5,574.84 06/05/02 57.39 56.37
5,575.33 07/08/02 56.90 55.88
5,575.79 08/23/02 56.44 55.42
5,576.08 09/11/02 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 12/03/02 55.69 54.67
5,576.96 01/09/03 55.27 54.25
5,577.11 02/12/03 55.12 54.10
5,577.61 03/26/03 54.62 53.60
5,572.80 04/02/03 59.43 58.41
5,577.89 05/01/03 54.34 53.32
5,577.91 06/09/03 54.32 53.30
5,577.53 07/07/03 54.70 53.68
5,577.50 08/04/03 54.73 53.71
5,577.71 09/11/03 54.52 53.50
5,577.31 10/02/03 54.92 53.90
5,577.33 11/07/03 54.90 53.88
5,577.34 12/03/03 54.89 53.87
5,578.24 01/15/04 53.99 52.97
5,578.38 02/10/04 53.85 52.83
5,578.69 03/28/04 53.54 52.52
5,579.15 04/12/04 53.08 52.06
5,579.47 05/13/04 52.76 51.74
5,579.53 06/18/04 52.70 51.68
5,580.17 07/28/04 52.06 51.04
5,580.20 08/30/04 52.03 51.01
5,580.26 09/16/04 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 01/18/05 52.43 51.41
5,580.35 02/28/05 51.88 50.86
5,580.57 03/15/05 51.66 50.64
5,580.86 04/26/05 51.37 50.35
5,581.20 05/24/05 51.03 50.01
5,581.51 06/30/05 50.72 49.70
5,581.55 07/29/05 50.68 49.66
5,581.68 09/12/05 50.55 49.53
5,581.83 12/07/05 50.40 49.38
5,564.92 03/08/06 67.31 66.29
5,582.73 06/13/06 49.50 48.48
5,582.33 07/18/06 49.90 48.88
5,582.75 11/07 /06 49.48 48.46
5583.35 02/27/07 48.88 47.86
5,559.57 05/02/07 72.66 71.64
5,583.29 08/14/07 48.94 47.92
5,583.49 10/10/07 48.74 47.72
5,584.95 03/26/08 47.28 46.26
5,584.59 06/24/08 47.64 46.62
5,584.55 08/26/08 47.68 46.66
5,584.03 10/14/08 48.20 47.18
5,583.64 03/03/09 48.59 47.57
5,587.34 06/24/09 44.89 43.87
5,582.90 09/10/09 49.33 48.31
5,583.27 12/11/09 48.96 47.94
5,583.63 03/11/10 48.60 47 .58
5,583.82 05/11/10 48.41 47.39
5,583.51 09/29/10 48.72 47.70
5,582.86 12/21/10 49.37 48.35
5,582.60 02/28/11 49.63 48.61
5,590.00 06/21/11 42.23 41 .21
5,582.70 09/20/11 49.53 48.51
5,583.05 12/21/11 49.18 48.16
5,581.93 03/27/12 50.30 49.28
5,582.03 06/28/12 50.20 49.18
5,582.08 09/27/12 50.15 49.13
5,581.94 12/28/12 50.29 49.27
5,581.52 03/28/13 50.71 49.69
5,580.88 06/27/13 51.35 50.33
5,580.58 09/27/13 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 (L D) 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 03/27/14 52.61 51.59
5,578.52 06/25/14 53.71 52.69
5,577.59 09/25/14 54.64 53.62
5,577.40 12/17/14 54.83 53.81
5,576.73 03/26/15 55.50 54.48
5,576.62 06/22/15 55.61 54.59
5,576.16 09/30/15 56.07 55.05
5,575.57 12/02/15 56.66 55.64
5,575.62 03/30/16 56.61 55.59
5,574.89 06/30/16 57.34 56.32
5,574.37 09/29/16 57.86 56.84
5,574.23 12/21/16 58.00 56.98
5,574.23 03/30/17 58.00 56.98
5,573.72 06/27/17 58.51 57.49
5,573.28 09/28/17 58.95 57.93
5,572.66 11/30/17 59.57 58.55
5,572.19 03/28/18 60.04 59.02
5,571.83 06/22/18 60.40 59.38
5,571.34 09/25/18 60.89 59.87
5,570.99 12/17/18 61.24 60.22
5,570.21 03/25/19 62.02 61.00
5,570.28 06/24/19 61.95 60.93
5,570.04 08/12/19 62.19 61.17
5,569.68 11/18/19 62.55 61.53
5,569.35 02/10/20 62.88 61.86
5,568.92 05/04/20 63.31 62.29
5,568.38 09/22/20 63.85 62.83
5,568.28 12/30/20 63.95 62.93
5,568.31 03/11/21 63.92 62.90
5,567.65 06/24/21 64.58 63.56
5,567.61 08/13/21 64.62 63.60
5,567.72 12/30/21 64.51 63.49
5,567.15 02/10/22 65.08 64.06
5,567.57 06/28/22 64.66 63.64
-...J Vl -...J 0
Depth Below Measuring Point (ft.)
°" Vl °" 0 Vl Vl Vl 0 ""'-Vl ""'-0
~---l------4'....1.::-------t------+-------r---r-------r 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 1-__ ....1.... __ ___J_ ___ .1...._ __ ....J.-__ ___._ ___ ..____ __ _._ 09/24/23
""'3 ~ I ~
~ ;' ..,
~ ~ ~ ~
0
;€ ..,
""'3 .... a ~ -?
O" -a ~ --
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) Well
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.L D) 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
---0 8
Depth Below Measuring Point (ft.)
\0 0 00 0 -..l 0 O'I 0
V,
0
I •; • • _: • •"-I I I L ?gj~~jgg
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
03/14/08
-08/11/08
01/08/09
06/07/09
11/04/09
04/03/10
08/31/10
01/28/11
06/27/11
11/24/11
04/22/12
09/19/12
02/16/13
07/16/13
12/13/13
05/12/14
10/09/14
03/08/15
08/05/15
01/02/16
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
L--~~----1~~~---l.~~~----L~~~--'-~~~-'--~~~---10/22/23
~ ! I ...
~ ;'
"'1
0 ~ "C er
0 ~ "'1
~ -· 9 ~ -?
O" a "C "-"
Water Levels and Data over Time
White Mesa Mill -Well TW4-5
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 l.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 1.95 121.85
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
-.:i V, -.:i 0
Depth Below Measuring Point (ft.)
°' V, °' 0 V,
V,
V, 0
I I I -....1 I I 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
~ ~ I VI
~ -~
""" t::,
~ "t:S ;.
0 ~ ~
""" ~ .... a ~ --?
O" -i --
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
5,522.28 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 (blw.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) (L D) (MP) Riser (L) Monitoring (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
'Cl 0 00 Vl 00 0
Depth Below Measuring Point (ft.)
-J Vl -J 0 0\ Vl 0\ 0 Vl Vl
Vl
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 t'O
11/04/09 l"1
~ 04/03/10 t'O 08/31/10 "'C -01/28/11 =-06/27/11 0 11/24/11 ~
04/22/12 t'O l"1 .. 09/19/12 ~ 02/16/13 ....
07/16/13 9
12/13/13 t'O --05/12/14 ? 10/09/14 C" 03/08/15 -08/05/15 9
01/02/16 "'C --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
Water Levels and Data over Time
White Mesa Mill -Well TW4-7
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total Depth
Elevation Surface Elevation Length Of Date Of Water Water Of Well
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD)
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
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total Depth
Elevation Surface Elevation Length Of Date Of Water Water Of Well
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (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
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total Depth
Elevation Surface Elevation Length Of Date Of Water Water Of Well
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD)
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
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total Depth
Elevation Surface Elevation Length Of Date Of Water Water Of Well
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (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
00 Vl 00 0
Depth Below Measuring Point (ft.)
-.J Vl -.J 0 °'" Vl °'" 0 Vl Vl Vl 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 .i;;.
09/18/07 I -...l
02/15/08 ~ 07/14/08
12/11/08 -~ 05/10/09 ~
10/07/09 ~
03/06/10 ~ "C 08/03/10 -12/31/10 =-
-05/30/11 0
10/27/11 ~ ~ 03/25/12 ~
08/22/12 ~
01/19/13 -· e 06/18/13 ~
11/15/13 ,-....
04/14/14 ?
09/11/14 C"
02/08/15 -e 07/08/15 "C 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
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.~0 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 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
5,550.68 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 64.1 l
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 03115105 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
5,542.19 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
-0 0 \0 0 00 0
Depth Below Measuring Point (ft.)
-.J 0 °' 0
Ul 0 .j:,. 0 (.>)
0 Iv 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 QC
02/15/08 ~ 07/14/08
12/11/08 f"I,-~ 05/10/09 i-r
10/07/09 0
03/06/10 ~ "Cl 08/03/10 f"I,-
12/31/10 =--
05/30/11 0
10/27/11 ~ ~ 03/25/12 i-r
08/22/12 ~
01/19/13 .... a 06/18/13 ~
11/15/13 -..
04/14/14 ??
09/11/14 O"'
02/08/15 -a 07/08/15 "Cl 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
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 05/11/00 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 TW4-9
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.l
5,581.04 05/31/01 56.55 55 .07
5,581.]2 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 09/19/01 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 05/11/10 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
-J 0
Depth Below Measuring Point (ft.)
0\ V, 0\ 0
V,
V,
V,
0
~-r--.:::::::::::::::::::::~:::::::::::::::::!llii.;;;:::::---~~~,---~~~~----r 12/20/99 • I 05/18/00
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
lo-3 ~ ,&;;;,..
I ~
l ~ "'1
0 ~ ~ ~
0 ~ ~ "'1
lo-3 ... a ~ -?
O" -a ~ '-'
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 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
5,578.02 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 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
5,571.79 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
00 0 -.l 0 °' 0
Depth Below Measuring Point (ft.)
VI 0
.i:,..
0
l,.)
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 ~
05/26/09 C
10/23/09 ~ 03/22/10 ""' 08/19/10 ~ ..,
01/16/11 t:,
06/15/11 ~
11/12/11 "'C
04/10/12 ~
09/07/12 0
02/04/13 < ~
07/04/13 ..,
12/01/13 ~ ...
04/30/14 9
09/27/14 ~ ,,_
02/24/15 ? 07/24/15 C"' 12/21/15 -05/19/16 9 "'C 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
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 (bJw.MP) (bJw.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
......
8 \0 V, \0 0
Depth Below Measuring Point (ft.)
00 VI 00 0 -..J VI ~ 0\ V, 0\ 0
VI
VI
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 !"'I-
08/19/10 ~ "1
~Ol/16/11 0 ~ 06/15/11 ~
11/12/11 "C !"'I-
04/10/12 :r
09/07/12 0
02/04/13 ~ ~
07/04/13 "1
12/01/13 ~ ...
04/30/14 9
09/27/14 ~ -..
02/24/15 ? 07/24/15 0-
12/21/15 -05/19/16 9 "C
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
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 (bJw.MP) (bJw.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
Vl \0
Vl .j::,,.
Depth Below Measuring Point (ft.)
.j::,,.
\0
.j::,,.
.j::,,.
U,)
\0
U,)
.j::,,.
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
08/16/09 ~ N
01/13/10 ~ 06/12/10
11/09/10 -~
04/08/11
..,
0 09/05/11 ~
02/02/12 "'C -07/01/12 =-
11/28/12 0
04/27/13 < ~
09/24/13 ..,
1-3 02/21/14 -· 07/21/14 a
12/18/14 ~ -05/17/15 ?
10/14/15 O"'
03/12/16 -a 08/09/16 "'C
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
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 TW4-13
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
-0 0 \0 0
Depth Below Measuring Point (ft.)
00 0 -.J 0 0\ 0
V,
0
.j::..
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
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
~ ! I ~
tN
~ ;-
"'1
~ ~ "C Er
0 ~ "'1
~ .....
9 ~ ,-.., ?
O" e "C -
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
......
8 -.,
I.O 0
~
r
~
• •
~
• • .
• ~
00 0
•
~
0
~
0 • • •
' .
~ •• 0
• • •
•
it
0
Depth Below Measuring Point (ft.)
-..J 0 O'\ 0 lll 0 .j::,. 0
(.,.)
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 lo-3 05/23/08
10/20/08 ~
03/19/09 ~ I
08/16/09 ~ ~
01/13/10 ~ 06/12/10
11/09/10 -~
04/08/11 ~
~ 09/05/11 ~
02/02/12 "C -07/01/12 =-
11/28/12 0
04/27/13 ~ ~
09/24/13 ~
02/21/14 lo-3 -· 07/21/14 e
12/18/14 ~ -05/17/15 ?
10/14/15 -a"
03/12/16 §"
08/09/16 "C
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
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
-8 \0 0
Depth Below Measuring Point (ft.)
00 0 -.J 0 0\ 0 Ul 0
.j::,.
0
1-------4-----+---------+---------·-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
~ ~ N °' ~ ;-
'"'I
~ ~ "O -=-0 < ~ '"'I
~ a·
~ ,-..,
?
C'" -a "O ._,
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) Monitorini (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 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
5,558.00 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 l l/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
00 Vl 00 0
Depth Below Measuring Point (ft.)
-...]
Vl
-...]
0 0\ Vl 0\ 0 Vl Vl Vl 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 .&;;.
I
08/16/09 ~
0-..
01/13/10 ~ 06/12/10
11/09/10 -~
04/08/11 ~
t:, 09/05/11 ~
02/02/12 ~ -07/01/12 =-
11/28/12 0
04/27/13 ~ ~
09/24/13 ~
~ 02/21/14 -· 07/21/14 !3
12/18/14 ~ --05/17/15 ?
10/14/15 O"
03/12/16 e 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
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
00 +>-00 N
Depth Below Measuring Point (ft.)
00 0 -..I
00
-..I °' -..I +>--..I N
1----4~---i-----+-----+-----i-----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
~ ~ w N
i ;-
1"'1
~ ~ "t:, -=-0 ~ I"'!
~ ....
9 ~ ,-...,
?
O"' 9 "t:, ._
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 I 1/22/02 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 JJ/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 TW4-18
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
5,585.15 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/ll/IO 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.l l
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 TW4-18
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
00 0 --..:i 0 °' 0
Depth Below Measuring Point (ft.)
VI 0
.j::..
0 v.l 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 .&;.
I
~ 08/16/09 QQ
01/13/10 ~ 06/12/10
11/09/10 """" ~
04/08/11 "1
~ 09/05/11 ~
02/02/12 "O
"""" 07/01/12 =-
11/28/12 0
04/27/13 ~ ~
09/24/13 "1
~ 02/21/14 -· 07/21/14 9
12/18/14 ~ ,,-.,
05/17/15 ?
10/14/15 O'"
03/12/16 -9 08/09/16 "O
01/06/17 "-'
06/05/17
1-11/02/17
-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
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
5,581.88 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
5,568.2 1 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
5,566.91 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
....
8 \0 0
Depth Below Measuring Point (ft.)
00 0 -.J 0 °' 0 Vl 0
.j::..
0 1---------------------------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
I• 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
I• 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 ~ \C
~ ;-..,
e,
~ "'C -=-0 ~ ~ ..,
~ ... 9 ~ -?
'O"' a "'C ._,
Water Levels and Data over Time
White Mesa Mill -Well TW4-21
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
5,638.20 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 09/10/09 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 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
5,638.20 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 7I.OO
\0 0 00 0 -...J 0
Depth Below Measuring Point (ft.)
0\ 0
V,
0 .j::,,. v.l 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
ll/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/l 9
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
1-3 ~ I N ~
~ ;-
"1
0 ~ "'C ~
0 < ~ "1
1-3 -· a ~ --?
O" -a "'C '-"
Water Levels and Data over Time
White Mesa Mill -Well TW 4-22
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) Monitorin~ (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
-0 0 \0 0 00 0
Depth Below Measuring Point (ft.)
-J 0 O'I 0 Vl 0 ~ 0
(.;J
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 ""'3
11/30/10 ~ ,I:;;..
04/29/11 I N
09/26/11 N
02/23/12 ~
07/22/12 """ ~
12/19/12 "1
t, 05/18/13 ~
10/15/13 "'O """ 03/14/14 ::r
0 -08/11/14 ~
01/08/15 ~
"1
06/07/15 ""'3 -· 11/04/15 9 ~ 04/02/16 --08/30/16 ?
01/27/17 O" -06/26/17 9 "'O 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
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
-..J 00
-..J
Cl\ ~
Depth Below Measuring Point (ft.)
-..J Iv -..J 0 0\ 00
0\ 0\ ~ Cl\ Iv
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 ~ ,I;..
08/17/12 I N
01/14/13 ~
06/13/13 ~ -11/10/13 ~ "1
04/09/14 0 ~
09/06/14 "'O -02/03/15 =-0 07/03/15 ~ ~
11/30/15 "1
04/28/16 ~ .... s -09/25/16 ~ --02/22/17 ?
-07/22/17 O" -12/19/17 s "'O
-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
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
\0 0 0
00 0
0
-..]
0 0
Depth Below Measuring Point (ft.)
O'I 0 0
Ul 0 0
.j::a..
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 ~
03/20/12 ~
08/17/12
,&;;...
I N
01/14/13 .,:;.
06/13/13 ~
""'" 11/10/13 ~ ..,
04/09/14 ~ ~
09/06/14 ~ ""'" 02/03/15 ::r
0 07/03/15 ~ ~
11/30/15 ..,
-04/28/16 ~ .... 9 09/25/16 ~ --02/22/17 ?
07/22/17 a--12/19/17 9 ~
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
Water Levels and Data over Time
White Mesa Mill -Well TW 4-25
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
5,642.82 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
5594.42 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
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
5,642.82 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
--N 0 0 0
Depth Below Measuring Point (ft.)
00 0 O'\ 0
.j::..
0 N 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 ~
03/20/12 ~
08/17/12 .&;;;.
I ~
01/14/13 tll
06/13/13 i !"I"
11/10/13 ~ lo'!
,_ 04/09/14 ~ ~
09/06/14 "'C !"I"
02/03/15 =-0 07/03/15 ~ ~
11/30/15 lo'!
04/28/16 ~ -· a 09/25/16 ~ -02/22/17 ?
07/22/17 O" -12/19/17 a "'C
-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
Water Levels and Data over Time
White Mesa Mill -Well TW4-26
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
5,599.98 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 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
5,599.98 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
-..J 0\
8
i
8
Depth Below Measuring Point (ft.)
-..J N
8
-..J 0
8
0\ 00 0 0
0\ 0\ 0 0
~
8
0\ N
8
0\ 0 0 0
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 N 03/02/14 ~
07/30/14 ~
12/27/14 ;-..,
05/26/15 ~ ~ ~
10/23/15 Er
03/21/16 0 ~ ~ 08/18/16 ..,
~ 01/15/17 ... a
06/14/17 ~ .-..
11/11/17 ?
C"
04/10/18 -8
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
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 12/28/12 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
Depth Below Measuring Point (ft.)
\D \D 00 00 00 00 00 -..J
N 0 00 C'1 ~ N 0 00
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 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 ~ ,&;;;..
I
10/23/15 N ....J
03/21/16 ~ -08/18/16 ~ "'1
~
01/15/17 ~ "'C -06/14/17 =-0
11/11/17 ~ ~ "'1
04/10/18 ~ ....
09/07/18 !3 ~ --02/04/19 ?
07/04/19 C" -!3
12/01/19 "'C --
04/29/20
09/26/20
02/23/21
07 /23/21
12/20/21
05/19/22
10/16/22
03/15/23
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
°' 0 0 0
VI 0
8
1,
~
0 ..
••
~
~
·~
' •
Depth Below Measuring Point (ft.)
~ W N 0 0 0 o o o 0 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
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
~ ~ ,&;;;,,.
I N 00
~ .... ~ "1
0 ~ "'Q ....
=--0 -l!l ~ "1
~ -· 9 ~ -.. ?
O"" -9 "'Q --
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
5,53'3.85 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
00 0 8
-..I ~ 0 0
Depth Below Measuring Point (ft.)
-..I -..I -..I -..I -..I 00 -..I 0\ VI .j::,. o o o o o 0 0 0 0 0
-..I VJ
8
-..I N
8
-..I -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 N 03/21/16 \0
08/18/16 ~ """ ~
01/15/17 ""1
~
06/14/17 ~ ~ """ 11/11/17 ::r"
0 -l!l 04/10/18 ~ ""1
09/07/18 ~ ... a
02/04/19 ~ --
07/04/19 ??
"r::J' -12/01/19 a ~ '-" 04/29/20
09/26/20
02/23/21
07/23/21
12/20/21
05/19/22
10/16/22
03/15/23
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
-.J 00 u,
0
-.J 00
8
Depth Below Measuring Point (ft.)
-.J :--1 V, 0
-.J -.J
0 0
-.J O'I u,
0
-.J O'I
8
-.J V, u,
0
-.J V,
0 0
-.J :i::. V, 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 ~ 0 03/21/16 ~ 08/18/16 .... ~ ""1
01/15/17 0 ~
06/14/17 "Cl Er
11/11/17 0 -ll!l
04/10/18 ~ ""1
09/07/18 ~ ... 9
02/04/19 ~ ,-..
07/04/19 ?
"r:::t' -12/01/19 9 "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
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) Monitorin~ (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
Depth Below Measuring Point (ft.)
00 00 00 00 -.I -.I -.I °' ~ N 0 00 °' ~ 0 8 0 0 0 0 8 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 ~ I ~
10/23/15 ~
~ 03/21/16 ""'" ~
08/18/16 ""1
~
01/15/17 ~ "'C
""'" 06/14/17 =-0
11/11/17 < ~ ""1
04/10/18 ~ ...
09/07/18 a ~ --02/04/19 ?
07/04/19 -a -a
12/01/19 "'C --~ 04/29/20
09/26/20
02/23/21
07/23/21
12/20/21
05/19/22
10/16/22
03/15/23
Water Levels and Data over Time
White Mesa Mill -Well TW 4-32
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
5,610.20 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 12/30/2] 56.28 54.64
5,555.23 02/10/22 56.61 54.97
5,555.56 06/28/22 56.28 54.64
V,
00
0 0
V,
0\
0 0
Depth Below Measuring Point (ft.)
V,
.j:s.
8
V,
N
0 0
V, 0
8
.j:s.
00
8
.j:s.
0\
0 0
12/07/12
05/06/13
10/03/13
03/02/14
07/30/14
12/27/14
05/26/15 1--3
10/23/15 ~ ~ I t.,H 03/21/16 N
08/18/16 ~ f"I'-
01/15/17 ~ ~
0 06/14/17 ~ ~ f"I'-
11/11/17 =-0 04/10/18 -< ~ ~
09/07/18 1--3 ...
02/04/19 e ~ ---07/04/19 ?
12/01/19 -a--e
04/29/20 ~ "-'
09/26/20
02/23/21
07/23/21
12/20/21
05/19/22
10/16/22
03/15/23
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
-J '° 8
-J 00
0 0
-J -J
8
Depth Below Measuring Point (ft.)
-J 0\
0 0
-J Vl
8
-J ""'-0 0
-J v.l
0 0
-J N
8
-J -J -0
0 0 0 0
0\ \0
8
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
~ ~ ,&;;..
I ~ ~
~ ~ ~ "'1
0 ~ "'O ~
0 < ~ "'1
~ .....
9 ~ --?
C" -9 "'O --
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) Monitoring (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
IZ/1£/01
OZ/81/90
--Q. e -.c
ct 61/170/ZO --~ e ... ~
I,.; ~ .... ll/ZZ/60 0 -= ..... Q. ~ Q
I,.; ~ 91/01/~0 ..... ~
"" ~ I "" ~ 171/LZ/Zl ~
£1/171/80
Zl/10/170
0 0 0 0 0 0 0 0 8 0 0 ~ ~ 0 ~ 0 ~ 0 ~ 0 ~
00 0\ 0 -0-i ('<") ~ Ir) '° r-..: 00 \0 \0 r-r-r-r-r-r-r-r-r-
("U) lU!Od 2uµnsti;:iw Mops: qld;:ia
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 09/25/14 74.35 73.15
5,525.72 12/17 /14 74.15 72.95
5,525.56 03/26/15 74.31 73.11
5,525.67 06/22/15 74.20 73.00
5,525.81 09/30/15 74.06 72.86
5,525.57 12/02/15 74.30 73.10
5,526.01 03/30/16 73.86 72.66
5,525.75 06/30/16 74.12 72.92
5,525.57 09/29/16 74.30 73.10
5,525.62 12/21/16 74.25 73.05
5,525.87 03/30/17 74.00 72.80
5,525.70 06/27/17 74.17 72.97
5,525.57 09/28/17 74.30 73.10
5,525.56 11/29/17 74.31 73.11
5,525.64 03/28/18 74.23 73.03
5,525.56 06/21/18 74.31 73.11
5,525.46 09/25/18 74.41 73.21
5,525.37 12/17/18 74.50 73.30
5,525.12 03/25/19 74.75 73.55
5,525.35 06/24/19 74.52 73.32
5,525.31 08/12/19 74.56 73.36
5,525.12 11/18/19 74.75 73.55
5,525.17 02/10/20 74.70 73.50
5,524.80 05/04/20 75.07 73.87
5,524.71 09/22/20 75.16 73.96
5,524.82 12/30/20 75.05 73.85
5,524.49 03/11/21 75.38 74.18
5,524.52 06/24/21 75.35 74.15
5,524.45 08/13/21 75.42 74.22
5,524.58 12/30/21 75.29 74.09
5,524.30 02/10/22 75.57 74.37
5,524.47 06/28/22 75.40 74.20
IZ/1£/01
-Q. OZ/81/90 8 -,1:J.
~ --a.l 8 .... ~ 6Ilv0/W .. a.l j;a,,
0 -= ..... Q.
a.l Q .. LI/'l'l/60
a.l ..... ~
II)
r")
I ~ ~ 91/01/~0
~
PIILZ/ZI
£ L/t,I/80
0 0 0 0 0 0 0 0 0 0 0 0 ~ 00 0 N -s:t" \0 00 ~ ~ s::t: ~ 00
M M ..,; ..,; ..,; ..,; ..,; If) If) If) If) If) r-r-r-r-r-r-r-r-r-r-r-r-
Cu) lU!Od ~uµnsBgW MOPS: 1.ndga
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
UI
I.O 0 0
UI 00 V,
0
Depth Below Measuring Point (ft.)
UI 00 0 0
UI -.J V,
0
UI -.J 0 0
UI 0\ V,
0
UI 0\ 0 0
UI UI
V,
0
1----~--+-~--+--------+--~--+----+------1------+08/14/13
12/27/14
05/10/16
09/22/17
02/04/19
06/18/20
10/31/21
'--------~------~---~--~---~ 03/15/23
~ ~ ~ I ~ O'I
~
"""' ('e
'"'I
0 ('e
~
"""' =--0 < ('e
'"'I
~ .... a ('e ,,-...
~
a" -! --
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
IZ/1£/0I
--Q,,i e OZ/8I/90 -.c
ct:: '-"
~ e .... ~
I,.; ~ ....
0 6U'70/ZO
..= ..... Q,,i ~ ~
I,.;
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t--, ll/ZZ/60 ('f')
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9I/OI/~O
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0 0 8 8 8 0 8 0 0 0 ci 0 0 ci 0 0 0 N ""'" \0 00 0 N
(":lJ) lU!Od ~uµns1?gW Mops: 41dga --
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
lZ/1£/01
--Q. e -.c
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~ ~ ;...
0
..c -Q.
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~ 61/170/ZO ~ -~
QC
~ I "" ~ ~
ll/ZZ/60
91/01/~0
~ 0 0 ~ 0 0 0 0 0 0 ~ 0 0 ~ ~ 0 0 ~ N C'"l s::t= V'"l \0 r-00 0\ ci -V'"l V'"l V'"l V'"l V'"l V'"l V'"l V'"l \0 l,D
("lJ) lll!Od fluµnsugw MOPS: qldga
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
ll/l £/Ol
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i:::i.. e -.c
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'-'
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9l/Ol/~O
8 8 8 8 8 0 8 0 0 0 0 0 0 0 0 C'-1 "<1" I.O 00 0 N
('lJ) lU!Od ~uµnsegw MOT;)H 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 72.01 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
.....:i
Vl
.....:i .j::,. .....:i t,.}
Depth Below Measuring Point (ft.)
.....:i N .....:i ...... .....:i 0 °' \0 °' 00 °' .....:i °' °' 1-----1----1----+---+-----if----l----l----+---+-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
~ ~ ~ I ~ 0
~
"""" ~ "'1
0 ~ ~
"""" =-0 < ~ "1
~ -· a ~ -.. ?
C" -a ~ "-"
Water Levels and Data over Time
White Mesa Mill-Well TW4-41
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 (blw.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
N 0 -8
Depth Below Measuring Point (ft.)
00 0 0\ 0 .i:.. 0 N 0 0 1----------------------+-----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
L----ll..__ __ __J,, ___ __._ ___ __._ ________ ~ 02/03/23
i-3
! I .&;;.
"""" ~ -~ ""S
~ ~ "'C -=-0 ~ ~ ""S
i-3 -· a ~ --?
O"' -a "'C '-"'
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
-..J 00 -..J 0\
Depth Below Measuring Point (ft.)
-..J ~ -..J N -..J 0 0\ 00 0\ 0\ ~
------------------------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
~ ~ ,&;;;..
I ,&;;;..
N
~ -~ "1
0 ~ "Cl -=-0 ~ ~ "1
~ ...
!3 ~ ---? a -!3 "Cl _..
Water Levels and Data over Time
White Mesa Mill-Well TW4-43
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
5,595.17 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
Z:Z/tZ/80
,.
Z:ZILZ/£0
------------.--
-
lZ/IO/IO
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 t[on ue;dy TW4-15)
Total
Pumped Total Pumped Total Total Total Total Pumped Total Total
Quarter (gal) Cone (liters) Total (ug) (grams) (pounds) Pumped (gal) Cone (liters) Total (ug) (grall)S) (pounds)
QI 2007 1307110 3370 4947411.4 l.6673E+l0 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
Q4 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
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
Q22009 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
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 201 I 76247.6 1700 288597.2 490615182 491 I. I 55130 450 208667.1 93900172.5 94 0.2
Q2 201 I 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
Q42011 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.l 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. l 1400 88050.8 12327 I 167 123 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
Q3 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.l 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
--· .. _... -~--~·-··'~ ....... ~ ................................ _,,," ...... _ ................................. .,. ....................... ""''' .., .........
-MW-4 MW-26 (formerly.TW4-15)
Total
Pumped Total Pumped Total Total Total Total Pumped Total Total
Quarter (gal) Cone (liters) Total (ug) (grams) (pounds) Pumped (gal) Cone (liters) Total (ug) (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 1.1 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
Q3 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 l 17769791 118 0.3
QI 2020 102597.0 1230 388329.6 477645370 478 I. I 24107.0 1100 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 101 0.2
Q4 2020 91258.6 1050 345413.8 362684491 363 0.8 28934.5 866 109517.l 94841793.4 95 0.2
Ql 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.l 998 110234.7 110014249 110 0.2
Q3 2021 89693.5 1140 339489.9 387018483 387 0.9 27945.6 1580 105774.l 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
Totals 7198660.53 112.3 3087784.1 39.4
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
-TW4-19 TW4-20
Total
Pumped Total Pumped Total Total Total Total Pumped Total Total
Quarter (gal) Cone (liters) Total (ug) (grams) (pounds) Pumped (gal) Cone (liters) Total (ug) (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
Q3 2007 316080 1100 1196362.8 1315999080 1316 2.9 70360 5200 266312.6 1384825520 1385 3.1
Q4 2007 334350 llOO 1265514.8 1392066225 1392 3.1 63630 9000 240839.6 2167555950 2168 4.8
QI 2008 304784 1800 1153607.4 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
Q3 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 I I. I 51030 13000 193148.6 2510931150 2511 5.5
Q4 2009 454205 4700 1719165.9 8080079848 8080 17.8 208790 15000 790270.2 1.1854E+l0 11854 26.1
QI 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
Q3 2010 116899.2 2000 442463.5 884926944 885 2.0 39098.3 15000 147987.1 2219805983 2220 4.9
Q4 2010 767970.5 1200 2906768.3 3488122011 3488 7.7 36752.5 24000 139108.2 3338597100 3339 7.4
Ql 2011 454607.9 3400 1720690.9 5850349065 5850 12.9 37187.5 31000 140754.7 4363395313 4363 9.6
Q22011 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 72311.2 6800 273697.9 1861145666 1861 4.1
Q42011 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 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
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 I 6341.8 23300 61853.7 1441191513 1441 3.2
QI 2015 60553.0 4660 229193.1 1068039869 1068 2.4 15744.7 19900 59593.7 1185914421 1186 2.6
Q2 2015 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
Q3 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
QI 2017 110416.7 1240 417927.2 5 I 8229739 .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
. --·." ------------.... ---------····· -.. -----~-.. ,._ , ... -··· ---TW4-19 TW4-20 -Total
Pumped Total Pumped Total Total Total Total Pumped Total Total
Quarter (gal) Cone (liters) Total (ug) (grams) (pounds) Pumped (gal) Cone (liters) Total (ug) (grams) (pounds)
01 2018 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 2138261178 2138 4.7 12841.1 9500 48603.5 461733494 462 l.O
QI 2019 116132.8 2050 439562.6 901103428.4 901 2.0 14623.9 15600 55351.5 863482799 863 1.9
Q22019 100704.0 11500 381164.6 4383393360 4383 9.7 13439.l 13700 50867.0 696877811 697 1.5
Q3 2019 101026.8 6670 382386.4 255051754! 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
Q4 2020 144512.0 660 546977.9 361005427.2 361 0.8 Well collapsed and not sampled
QI 2021 133462.3 6660 505154.8 3364331005 3364 7.4 Well collapsed and not sampled
Q2 2021 151242.8 775 572454.0 443651848.5 444 1.0 Well collapsed and not sampled
Q3 2021 157632.4 4450 596638.6 2655041921 2655 5.9 Well collapsed and not sampled
Q4 2021 124359.9 6950 470702.2 3271380439 3271 7.2 Well collapsed and not sampled
QI 2022 112209.2 654 424711.8 277761531.6 278 0.6 Well collapsed and not sampled
Q2 2022 123246.5 2540 466488.0 1184879526 1185 2.6 Well collapsed and not sampled
Totals 20363485.93 466.8 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
Pumped Pumped Total Total Pumped Pumped Total Total
Quarter (gal) Cone (liters) Total (ug) (grams) (pounds) (gal) Cone (liters) Total (ug) (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
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
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
Ql 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
Ql 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q22010 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 l.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
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 6190944 71.3 619 1.4 NA NA NA NA NA NA
Ql 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 1.1 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 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 223288.1 281343039.4 281 0.6 24532.0 12100 92853.6 1123528802.0 11 23.5 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
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 275538681.3 276 0.6 23956.9 12400 90676.9 1124393144.6 l 124.4 2.5
Ql 2015 36941.3 1350 139822.8 188760807.7 189 0.4 22046.9 12700 83447.5 I 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
QI 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 301625575.1 301.6 0.7
QI 2017 23526.8 1290 89048.9 114873130 115 0.3 24066.2 5320 91090.6 484601816.4 484.6 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 I. I
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
--· ~ .... ~ -·-.... -~ ......... ~-••••"• ._.. • "'" ••• • •~•• •~ • ....,..._. ..._ •• .._. o -, • """ ._., • ,_. ,._,, • • ...._.__, ' ._, 0 0 I ,_,_._.
TW4-4 TW4-22
Total Total Total Total
Pumped Pumped Total Total Pumped Pumped Total Total
Quarter (gal) Cone (liters) Total (ug) (grams) (pounds) (gal) Cone (liters) Total (ug) (grams) (pounds)
012018 23103.4 1160 87446.4 101437788 101 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
Q3 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 2417 l.O 2680 91487.2 245185789.8 245.2 0.5
QI 2019 16655.0 1050 63039.2 66191133.75 66 0.1 26149.9 4310 98977.4 4265924 7 L.2 426.6 0.9
Q22019 14311.9 1070 54170.5 57962479.41 58 0.1 23073.l 4690 87331.7 409585595.6 409.6 0.9
Q3 2019 14520.0 989 54958.2 54353659.8 54 0.1 2471 l.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.l 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
Q2 2021 13425.7 1240 50816.3 63012180.38 63 0.1 22893.3 4520 86651.1 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.] 950 43153.2 40995505.33 41 0.1 22667.3 3330 85795.7 285699782.6 285.7 0.6
QI 2022 10434.1 1010 39493.1 39887999. l 9 40 0.1 22083.6 3320 83586.4 277506934.3 277.5 0.6
Q22022 11463.2 1110 43388.2 48160915.32 48 0.1 22489.0 2600 85120.9 221314249.0 221.3 0.5
Totals 2236834.0 26.5 898100.1 47.6
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-24 TW4-25
I Total Total Total Total
Pumped Pumped Total Total Pumped Pumped Total Total
Quarter (gal) Cone (liters) Total (ug) (grams) (pounds) (gal) Cone (liters) Total (ug) (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
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
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
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 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.J 0.1 126576.5 0.0 479092.1 0.0 0.0 0.0
Ql 2014 229063.9 78.5 867006.9 68060038.6 68.J 0.2 129979.2 0.0 491971.3 0.0 0.0 0.0
Q2 2014 216984.J 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
Ql 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 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
QI 2017 99117.4 18.3 375159.4 6865416.3 6.9 0.015 161.2 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.l 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
..._ __ ,._..,.,, .. _...,,_._.,..,. .. ,""'' ,.,, ......,,,,,r,...,,...,,,,, ''""'''"'""""' ..._,,.._. ''-".,.,., • ....,,._,,,,._. ...,, ,,.,,•-• ·• .,..,,""'-~
-TW4-24 TW4-25
TotaJ Total Total Total
Pumped Pumped Total Total Pumped Pumped Total Total
Quarter (gal) Cone (liters) Total (ug) (grams) (pounds) (gal) Cone (liters) Total (ug) (grams) (pounds)
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 53ll7.9 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
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 5798931 .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 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 0.000
Q4 2021 96534.8 112.0 365384.2 40923032.4 40.9 0.090 89361.5 0.0 338233.3 0.0 0.0 0.000
QI 2022 73545.0 114.0 278367.8 31733932.1 31.7 0.070 92972.1 0.0 351899.4 0.0 0.0 0.000
Q22022 50341.7 124.0 190543.3 23627373.5 23.6 0.052 101724.9 0.0 385028.7 0.0 0.0 0.000
Totals 3981741 .0 1.5 3881733.4 0.0
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-01 TW4-02
Total Total Total Total
Pumped Pumped Total Total Pumped Pumped Total Total
Quarter (gal) Cone (liters) Total (ug) (grams) (pounds) (gal) Cone (liters) Total (ug) (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
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
Q22012 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
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
QI 2015 24569.2 I 130 92994.4 I 05083696.9 105.1 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
Q3 2015 23652.0 1060 89522.8 94894189.2 94.9 0.21 21586.9 1310 81706.4 107035405.6 107.0 0.24
Q4 2015 20764.3 1040 78592.9 81736590.5 81.7 0.18 21769.8 2070 82398.7 170565294.5 170.6 0.38
QI 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 I 140 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 1178 17860.0 117.8 0.26
Q4 2016 16756.8 1330 63424.5 84354569.0 84.4 0.19 19740.6 1600 74718.2 I 19549073.6 I 19.5 0.26
QI 2017 16931.8 519 64086.9 33261081.9 33.3 0.07 19869.7 1570 75206.8 I 18074698.8 118.1 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
---·." . .. .. . ---~·-·-···· ·--···~· ._. ......... _ ...... -~·~···~ ~-··~---............ -.....
TW4-01 TW4-02
Total Total Total Total
Pwnped Pumped Total Total Pwnped Pumped Total Total
Quarter (gal) Cone (liters) Total (ug) (grams) (pounds) (gal) Cone (liters) Total (ug) (grams) (pounds)
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 7 l.52 0.16
Q3 2019 9734.l 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
Ql 2020 8796.7 1190 33295.5 39621656.3 39.62 0.09 13162.l 1880 49818.5 93658871.2 93.66 0.21
Q2 2020 9600.2 499 36336.8 l 8132041.7 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
QI 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. l 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 0.07 12351.3 852 46749.7 39830719.3 39.83 0.09
Ql 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.l 892 43596.0 38887639.6 38.89 0.09
Totals 401077.1 3.J 493679.2 5.7
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-11 TW4-21
Total Total Total Total
Pumped Pumped Total Total Pumped Pumped Total Total
(marter (gal) Cone (liters) Total (ug) (grams) (pounds) (gal) Cone (liters) Total (ug) (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
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
Ql 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
Ql 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
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
Q42013 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
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 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.'.I 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 I 1545.0 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
Q32017 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
-. ·-· . ~ ---· --. .. . . -· ... -. ·-··· -··---···-· . ···-···------· . -··· --TW4-ll TW4-21
Total Total Total Total
Pumped Pumped Total Total Pumped Pumped Total Total
Quarter (gal) Cone (liters) Total (ug) (grams) (pounds) (gal) Cone (liters) Total (ug) (grams) (pounds)
01 2018 2571.0 3090 9731.2 30069516.2 30.1 0.07 117832.0 421 445994.] 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.I 0.06 I 10001.4 476 416355.3 198185 l 22.3 198.2 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
Q22019 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
QI 2021 2195.1 2750 8308.5 22848455.3 22.85 0.05 9721 l.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 l 130 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
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
Totals 82787.9 2.0 3069109.8 14.6
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-37 TW4-39
Total Total Total Total
Pumped Pumped Total Total Pumped Pumped Total Total
Quarter (gal) Cone (liters) Total (ug) (grams) (pounds) (gal) Cone (liters) Total (ug) (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
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
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
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
Q22010 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 201 l 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
Ql 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 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2015 29206.0 30200 I 10544.7 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
Q4 2015 111737.5 19500 422926.4 824706553 I .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 l1924l.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.l 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.] 0.1
Ql 2017 9707 l.7 18000 367416 6613494921.0 6613.5 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 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
. --··-·· -·-·--.............. ~.,. -···----~···· ................ _. .... . ................................. ..,. ......... _. .......................
TW4-37 TW4-39
Total Total Total Total
Pumped Pumped Total Total Pumped Pumped Total Total
Quarter (gal) Cone (liters) Total (ug) (grams) (pounds) (gal) Cone (liters) Total (ug) (grams) (pounds)
01 2018 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 10.l 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 I 036379979.4 I 036.4 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 I 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 297747 l 764.0 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 114771198.5 114.8 0.3
Ql 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 2881651461.0 288 l.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 I 0209l301.6 102.1 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
Q22022 41998.3 46800 158963.6 7439494865.4 7439.5 16.4 31354.2 982 118675.6 116539485.4 116.5 0.3
Totals 2197436.9 288.6 962755.6 30.l
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-40 TW4-41
Total Total Total Total Total Volume
Pumped Pumped Total Total Pumped Pumped Total Total Total Pumped
Quarter (gal) Cone (liters) Total (ug) (grams) (pounds) (gal) Cone (liters) Total (ug) (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
Q4 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
Q2 2011 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
Q220]2 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.l
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
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
QI 2015 NA NA NA NA NA NA NA NA NA NA NA NA 9.9 45827 J.4
Q2 2015 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
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
Q3 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
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
·-... -··--·-··-··· -..-· . ......... -·· .,. ... -----~. ---··-. ---• -•-•••-v• • • ---• • -••• -~
TW4-40 TW4-41
Total Total Total Total Total Volume
Pumped Pumped Total Total Pumped Pumped Total Total Total Pumped
Quarter (gal) Cone (liters) Total (ug) (grams) (pounds) (gal) Cone (liters) Total (ug) (grams) (pounds) (pounds) (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 4498 l.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
Ql 2019 NA NA NA NA NA NA 31904 1220 120755.1 147321253.7 147.3 0.3 16.2 811589.4
Q22019 81762.7 263 309471.8 81391088.5 81.4 0.18 25146.5 1320 95179.5 l 25636943.3 125.6 0.3 26.2 750139.6
Q3 2019 116414.2 380 440627.7 167438543.9 167.4 0.37 24045.6 1190 91012.6 I 08304989 .2 108.3 0.2 18.3 794827.4
Q4 2019 108281.89 314 409847.0 128691943.4 128.7 0.28 21186.4 14!0 80190.5 113068638.8 113.1 0.2 13.0 844887.9
Ql 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 6546 1.1 79862567.4 79.9 0.2 25.2 910974.8
Q3 2020 86264.50 333 32651 l.1 I 08728207 .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.I 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.l 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
Totals 1033790.9 2.8 398276.3 4.2 1341.5 51835859.8
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 Oua.rte,,. (lbs.) (lbs.) (lbs.) (lbs.)*• (lbs.) (lbs.) (lbs.) (lbs.) (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
02 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
01 2008 1.7 0.4 4.6 7.2 NA NA NA NA NA NA NA NA NA NA NA NA 13.8
Q2 2008 1.3 0.5 3.2 9.9 NA NA NA NA NA NA NA NA NA NA NA NA 14.8
Q3 2008 1.2 0.3 15.9 9.3 NA NA NA NA NA NA NA NA NA NA NA NA 26.8
Q4 2008 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
Q22009 6.8 0.2 3.7 2.8 NA NA NA NA NA NA NA NA NA NA NA NA 13.5
Q3 2009 1.5 0.4 I I.I 5.5 NA NA NA NA NA NA NA NA NA NA NA NA 18.5
Q4 2009 4.8 0.6 17.8 26.J 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 l.4 NA NA NA NA NA NA NA NA NA NA NA 16.5
03 2010 1.3 1.2 2.0 4.9 1.3 NA NA NA NA NA NA NA NA NA NA NA 10.6
Q42010 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 I.I NA NA NA NA NA NA NA NA NA NA NA 24.9
Q2 2011 1.2 0.8 5.3 4.6 I.I NA NA NA NA NA NA NA NA NA NA NA 13.1
Q3 201 I 1.2 0.4 I.I 4.1 1.2 NA NA NA NA NA NA NA NA NA NA NA 8.1
04201 l 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
Q22012 l,l 0.7 0_7 6.9 I.I NA NA NA NA NA NA NA NA NA NA NA 10.4
03 2012 I.I 0.7 l.4 2.4 I.I NA NA NA NA NA NA NA NA NA NA NA 6.6
Q4 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
Q2 2013 0.9 0.9 3.9 4.4 0.7 2.7 0.0 0.0 NA NA NA NA NA NA NA NA 13.5
Q3 2013 0.9 0.6 22.3 4.4 0.7 2.1 0.1 0.0 NA NA NA NA NA NA NA NA 31.I
Q4 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
QI 2014 0.8 0.3 l,5 2.8 0.6 2.5 0.2 o.o NA NA NA NA NA NA NA NA 8.6
02 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
03 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
04 2014 0.8 0.4 7.J 3.2 0.6 2.5 0.04 0.0 NA NA NA NA NA NA NA NA 14.6
QI 2015 0.9 0.4 2.4 2.6 0.4 2.3 0.04 o.o 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
Q3 2015 1.0 0.4 7.6 2.5 0.7 1.6 O.o3 0.0 0.21 0.24 0.03 0.29 18.8 NA NA NA 33.4
042015 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 1.2 0.02 0.0 0.16 0.34 0.08 0.41 16.3 NA NA NA 30.6
Q2 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.l NA NA NA 39.4
Q3 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 13.l NA NA NA 24.7
042016 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 O.l NA NA 25.6
QI 2017 0.9 0.3 I. I 2.6 0.3 I.I O.DI 5 0.0 O.D? 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 0.1 I 12.3 1.9 NA NA 19.6
Q3 2017 I.I 0.3 8.3 3.4 0.3 l.l 0.008 0.0 0.14 0.21 0.08 0.54 10.2 2.9 NA NA 28.5
Q42017 1.2 0.6 0.1 I .4 0.2 0.9 0.014 0.0 O.D? 0.23 0.06 0.49 I 1.3 0.3 NA NA 16.9
QI 2018 1.2 0.3 2.4 1.8 0.2 0.9 0.020 0.0 0.01 0.10 O.D? 0.41 9,1 1.4 NA NA 18.0
Q2 2018 1.1 0.4 2.8 l.3 0.2 0.6 0.022 0.0 0.09 0.13 0.06 0.52 JO.I 2.0 NA 0.9 20.1
Q3 2018 10 0.4 1.7 I.I 0.1 0.6 0.016 0.0 0.08 0.12 0.06 0.44 9.l 2.3 NA 0.5 17.6
Q420J8 I.I 0.3 4.7 1.0 0.1 0.5 0.018 0.0 0.06 0.1 I 0.06 0.59 9.7 2.0 NA 0.4 20.8
QJ 2019 I.I 0.2 2.0 1.9 O.l 0.9 0.023 0.0 0.01 0.14 0.06 0.33 8.6 0.4 NA 0.3 16.2
Q2 2019 1.0 0.3 9.7 1.5 O.l 0.9 0.013 o.o 0.08 0.16 0.05 0.65 8.8 2.5 0.18 0.3 26.1
Q3 2019 0.9 0.3 5.6 1.2 0.1 0.7 0.014 0.0 0,07 0.09 0.05 0.5 6.7 1.3 0.37 0,2 18.3
Q42019 I.] 0.3 0.5 0.6 0.1 0.8 0.037 0.0 0.08 0.1 I 0.05 0.8 7.3 0.7 0.28 0.2 13.0
QI 2020 I.I 0.2 7.0 I.I O.l 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-ll TW4-21 TW4-37 TW4-39 TW4-40 TW4-41 Quarter
Owu:ter" (lbs.) Obs.) (lbs.) (lbs.)*" (lbs.) (lbs.) (lbs.) Obs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) Totals (lbs.)
Q2 2020 I.I 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
04 2020 0.8 0.2 0.8 0.0 0.1 0.7 0.063 0.0 0.07 0.14 O.o3 0.8 5.3 0.3 0.17 0.2 9.6
QI 2021 0.9 0.7 7.4 0.0 0.1 1.0 0.066 0.0 om 0.10 0.05 0.3 4.7 1.0 0.26 0.1 16.8
Q2 2021 1.0 0.2 1.0 0.0 0.1 0.9 0.019 0.0 O.Q7 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 O.Q3 0.5 4.3 0.2 0.15 0.1 13.4
Q4 2021 0.9 0.2 7.2 0.0 0.1 0.6 0.090 0.0 0.07 0.09 0.04 0.6 5.8 0.3 0.14 0.1 16.J
QI 2022 0.8 0.3 0.6 0.0 0.1 0.6 O.o?O 0.0 O.Q7 0.10 0.03 0.4 4.9 0.2 0.11 0.1 8.4
Q2 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
Well Totals I 12.3 112.3 I 12.3 112.3 I 12.3 I 12.3 I 12.3 I 12.3 I 12.3 I 12.3 J 12.3 I 12.3 I 12.3 112.3 I 12.3 I 12.3 1341.S
* QI 2007 represents the cumulative total prior to and in<:lu,lin!l, 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 93554.5 4.7
MW-26 29385.9 16.2
TW4-19 123246.5 15.1
TW4-4 11463.2 16.0
TWN-2 16024.1 15.6
TW4-22 22489.0 16.3
TW4-24 50341.7 14.7
TW4-25 101724.9 11.8
TW4-01 7616.0 12.9
TW4-02 11518.1 16.0
TW4-11 1473.1 15.1
TW4-21 91682.5 16.2
TW4-37 41998.3 18.0
TW4-39 31354.2 17.9
TW4-40 52135.2 18.0
TW4-41 11013.9 5.8
..........
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.0 -....
Q)
t
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>,
.0
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E ....
0 -e
0
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CJ)
CJ)
<l1 ~
q
0 LO Ct)
0 0 0 Ct)
0 0 LO C\I
q
0 0 C\I
ccOc ~0
~cOc cO
ococ 80
6~0c 170
6 ~Oc ~O
B~Oc cO
noc80
9~0c 170
9Wc ~o
9~0c cO
17~0c 80
8~0c 170
8~0c ~O
ewe co §
N
~ ~Oc 80
O~Oc 170
owe ~o
600c cO
800c 80
LOOc 170
LOOc ~o
0 0 q 0
0 0 0 0 LO 0 LO
T"'" T"'"
(spunod) paAowa~ WJOJOJOl48
en l:l C: ::,
0 c.. -l:l Q) > 0 E Q) a:
E ....
.2 e
.9 ..c
()
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
11
l'--0 0 C\J
,-
0
MW-04 Mass of Chloroform Removed by Quarter (lbs.)
~
.. •;-.. J'\/\-. ······· .......... ~ ............ ······ ~~~ • -T• -T-T••-----T T--~ T--· -----·-~ --T~-•-•-
l'--0 0 C\J
q-
0
CX) 0 0 C\J
C") a
O> 0 0 C\J
C\J a
0 ,-
0 C\J
,-
0
0 ,-
0 C\J
q-
0
,-,-
0 C\J
C") a
C\J ,-
0 C\J
C\J a
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0 C\J
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0
' C") ,-
0 C\J
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0
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0 C\J
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0 C\J
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0 C\J
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0
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0 C\J
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0 C\J
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0 C\J
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0
.
0 C\J 0 C\J
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,-
~
C\J
C\J a
C\J C\J 0 C\J
,-
0
Ql 2007 represents the cumulative total prior to and including Ql 2007.
0
Chloroform Removed (Pounds) 0 0 0
0 0 :...... :......
0 en o 01
+ 01 2015
02 2015
03 2015
04 2015
01 2016
02 2016
03 2016
04 2016
01 2017
02 2017
03 2017
04 2017
01 2018
02 2018
03 2018
04 2018
01 2019
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Ql 2022
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I-' I-' I-' N .i:,. a, 00 0 N .i:,.
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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I-' I-' N .,. °' 00 0 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
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Ql 2017
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111::1' OlOl tb
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111::1' 3: I-6tol vb
6tol Eb
6tol lb
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 s:t N 0 00 <D s:t N
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ci 0 0 0 00
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0 ci 0 0 0
I.I')
llOl lb
llOl 10
UOl 170
1l0l Eb
1l0l lb
1l0l1b
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OlOl 10
6Wl 170
6WlEb
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0 0 0 0 0
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TabH
Laboratory Analytical Reports
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
LABORATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: MW-04_06082022
Matrix: Water
Date Sampled: 6/8/22 14:00
lnoq.:ank
Chloride
Nitrate+ Nitrite, Total, as N
\ olatill' Or::anil· ( ompoumio,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
43.7
3.9
< 1.0
1010
1.0
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.10
1.0
JOO
1.0
1.0
PO#:
Receipt: 6/10/22 13:45@ 1.4 °C
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D 15030A
EPA 8260D 15030A
EPA 8260D 15030A
EPA 8260D 15030A
CtF WO#: 22F0972
Preparation
Date/Time
6/17/22
6/20/22
6/14/22
6/14/22
6/14/22
6/14/22
Lab ID: 22F0972-12
Analysis
Date/Time
6/17/22
6/20/22
6/14/22
6/14/22
6/14/22
6/14/22
Page 14 of 31
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/160~ATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-01_06082022
Matrix: Water
Date Sampled: 6/8/22 14:08
l1101·!!ani1·
Chloride
Nitrate+ Nitrite, Total, as N
\ olatik ( )r!!an11· ( ompo111uh
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
45.5
0.18
< 1.0
914
< 1.0
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.10
1.0
100
1.0
1.0
PO#:
Receipt: 6/10/22 13:45@ 1.4 °C
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
CtF WO#: 22F0972
Preparation
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Lab ID: 22F0972-07
Analysis
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Page 9 of 31
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
lA60fitP.TOAIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-02_06082022
Matrix: Water
Date Sampled: 6/8/22 13:25
lnori.tanil'
Chloride
Nitrate+ Nitrite, Total, as N
\ olarih· Ori.tanil· ( ompom11b
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
39.5
3.1
< 1.0
892
< 1.0
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.10
1.0
100
1.0
1.0
PO#:
Receipt: 6/10/22 13:45 @ 1.4 ·c
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
CtF WO#: 22F0972
Preparation
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Lab ID: 22F0972-09
Analysis
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Page 11 of 31
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
Lf160JiC.\TORlfS
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-03_06152022
Matrix: Water
Date Sampled: 6/15/22 6:45
lnon:anil·
Chloride
Nitrate+ Nitrite, Total, as N
\ olat1k Oq:a1m· ( um pound,
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
26.7
5.8
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.20
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11 :30@ 0.3 °C
Date Reported: 6/29/2022
Project Name: 2nd Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 82600 /5030A
EPA 82600 15030A
EPA 82600 15030A
EPA 82600 15030A
CtF WO#: 22F1630
Preparation
Date/Time
6/23/22
6/21/22
6123122
6/23/22
6/23/22
6/23/22
Lab ID: 22F1630-02
Analysis
Date/Time
6/24/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Page 4 of 35
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
L460RATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-03R_06142022
Matrix: Water
Date Sampled: 6/14/22 8:20
I norj!an i,
Chloride
Nitrate+ Nitrite, Total, as N
\ olat1k Orl!anu· C"o111pn1111d,
Carbon Tetrachloride
Chloroform
Ch 1 oromethane
Methylene Chloride
< 1.0
< 0.10
< 1.0
4.8
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.10
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11:30@0.3 ·c
Date Reported: 6/29/2022
Project Name: 2nd 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#: 22F1630
Preparation
Date/Time
6/23/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Lab ID: 22Fl630-01
Analysis
Date/Time
6/24/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Page 3 of 35
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
Ll~BOR:~\TORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-04_06082022
Matrix: Water
Date Sampled: 6/8/22 14:25
lnorl!itlli,·
Chloride
Nitrate+ Nitrite, Total, as N
\nlatik Orl!llllll' ( ompoulllb
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
39.9
6.0
< 1.0
1110
< 1.0
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.20
1.0
100
1.0
1.0
PO#:
Receipt: 6/10/22 13:45@ 1.4 °C
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22F0972
Preparation
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Lab ID: 22F0972-08
Analysis
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Page 10 of31
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
LABORATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-05_06162022
Matrix: Water
Date Sampled: 6/16/22 8:27
l nort,!anil'
Chloride
Nitrate+ Nitrite, Total, as N
\ olat1k 01'1!.tllll' ( ompoumh
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
40.7
7.1
< 1.0
10.3
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.50
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11:30@ 0.3 °C
Date Reported: 6/29/2022
Project Name: 2nd 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#: 22F1630
Preparation
Date/Time
6/23/22
6/27/22
6/25/22
6/25/22
6/25/22
6/25/22
Lab ID: 22F1630-19
Analysis
Date/Time
6/24/22
6/27/22
6/25/22
6/25/22
6/25/22
6/25/22
Page 21 of 35
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
LI\BORATOIIIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-06_06162022
Matrix: Water
Date Sampled: 6/16/22 8:06
I norc:rnil'
Chloride
Nitrate+ Nitrite, Total, as N
\ olacill· ( )rcan1l· < 'om po111ul,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
43.1
0.21
< 1.0
2.1
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
!d!!!J!
1.0
0.10
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11 :30@ 0.3 ·c
Date Reported: 6/29/2022
Project Name: 2nd 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#: 22F1630
Preparation
Date/Time
6/23/22
6/27/22
6/25/22
6/25/22
6/25/22
6/25/22
Lab ID: 22F1630-17
Analysis
Date/Time
6/24/22
6/27/22
6/25/22
6/25/22
6/25/22
6/25/22
Page 19 of35
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'tATOltlES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-07 _06222022
Matrix: Water
Date Sampled: 6/22/22 8:34
lnun!allil
Chloride
Nitrate+ Nitrite, Total, as N
\'nlatik Or~allll' ( 0111po111HI,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
42.5
3.9
< 1.0
447
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
1iml!
5.0
0.10
1.0
50.0
1.0
1.0
PO#:
Receipt: 6/23/22 12:00@ 2.3 °C
Date Reported: 7/11/2022
Project Name: 2nd Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 82600 /5030A
EPA 8260D /5030A
CtF WO#: 22F2101
Preparation
Date/Time
7/1/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
Lab ID: 22F2101-09
Analysis
Date/Time
7/1/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
QM-4X
J-LOW
Page 11 of23
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
LA80RAT0Rln
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-08_06162022
Matrix: Water
Date Sampled: 6/16/22 8:34
lnor!!anir
Chloride
Nitrate+ Nitrite, Total, as N
\ olatilt· Or!!an1r ( ·0111p,1111HI,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
52.8
0.64
< 1.0
10.9
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.10
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11 :30 @ 0.3 °C
Date Reported: 6/29/2022
Project Name: 2nd 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#: 22F1630
Preparation
Date/Time
6/23/22
6/27/22
6/25122
6/25/22
6/25/22
6/25/22
Lab ID: 22F1630-20
Analysis
Date/Time
6/24/22
6/27/22
6/25/22
6/25/22
6/25/22
6/25/22
Page 22 of 35
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
lABORATO!JIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-09_06222022
Matrix: Water
Date Sampled: 6/22/22 7:15
lnorganir
Chloride
Nitrate+ Nitrite, Total, as N
\ olatil1· Org:11111· ( ompouml,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
41.7
0.62
< 1.0
9.8
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
!dm.it
5.0
0.10
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/23/22 12:00@ 2.3 °C
Date Reported: 7/11/2022
Project Name: 2nd Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D 15030A
EPA 8260D 15030A
EPA 8260D 15030A
EPA 8260D 15030A
CtF WO#: 22F2101
Preparation
Date/Time
6/30/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
Lab ID: 22F2101-02
Analysis
Date/Time
6/30/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
J-LOW
Page 4 of23
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
lA60RATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-09R_06212022
Matrix: Water
Date Sampled: 6/21/22 7:40
Chloride
Nitrate+ Nitrite, Total, as N
\ olatik Or!!:tnll" ( ·,1111pound,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
< 1.0
< 0.10
< 1.0
7.3
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.10
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/23/22 12:00 @ 2.3 °C
Date Reported: 7/11/2022
Project Name: 2nd 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#: 22F2101
Preparation
Date/Time
6/30/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
Lab ID: 22F2101-01
Analysis
Date/Time
6/30/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
J-LOW
Page 3 of 23
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
lA80RAT01t1£S
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-10_06222022
Matrix: Water
Date Sampled: 6/22/22 8:12
ln11r1.?anil'
Chloride
Nitrate+ Nitrite, Total, as N
\ 11latil1· Ort,!an11· ( 11111p1111111l,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
46.0
4.6
< 1.0
342
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.0
0.10
1.0
50.0
1.0
1.0
PO#:
Receipt: 6/23/22 12:00 @ 2.3 °C
Date Reported: 7/11/2022
Project Name: 2nd 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#: 22F2101
Preparation
Date/Time
6/30/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
Lab ID: 22F2101-07
Analysis
Date/Time
6/30/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
J-LOW
Page 9 of23
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,,t.,60'lAr O 1111 E'
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-11_06082022
Matrix: Water
Date Sampled: 6/8/22 13:15
l1101·i.:ank
Chloride
Nitrate+ Nitrite, Total, as N
\ olatill• Ori.:anil· ( ompourHI~
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
44.5
5.9
1.0
2550
2.7
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.50
1.0
100
1.0
LO
PO#:
Receipt: 6/10/22 13:45@ 1.4 °C
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
CtF WO#: 22F0972
Preparation
Date/Time
6/17/22
6/20/22
6/14/22
6/14/22
6/14/22
6/14/22
Lab ID: 22F0972-13
Analysis
Date/Time
6/17/22
6/20/22
6/14/22
6/14/22
6/14/22
6/14/22
Page 15 of 31
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
Lf180RA.TOIIIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-12_06152022
Matrix: Water
Date Sampled: 6/15/22 7:14
lnor!!anir
Chloride
Nitrate+ Nitrite, Total, as N
\ ol;itil,· ( )r!!an1r C ·0111po11111io,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
53.3
16
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.50
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11:30@ 0.3 °C
Date Reported: 6/29/2022
Project Name: 2nd Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 82600 /5030A
EPA 82600 /5030A
EPA 8260D /5030A
CtF WO#: 22F1630
Preparation
Date/Time
6/23/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Lab ID: 22Fl630-04
Analysis
Date/Time
6/24/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Page 6 of 35
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
LA80RATOltlES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-13_06152022
Matrix: Water
Date Sampled: 6/15/22 7:40
lnorl!anit
Chloride
Nitrate+ Nitrite, Total, as N
\ olatil1· Oq!an11· ( 11111p111111tl,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
62.6
4.5
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.20
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11:30@ 0.3 °C
Date Reported: 6/29/2022
Project Name: 2nd 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#: 22F1630
Preparation
Date/Time
6/23/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Lab ID: 22F1630-07
Analysis
Date/Time
6/24/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Page 9 of 35
I Chemtech-Ford Laboratories
9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com CHEMTECH-FORO Serving the lntermountain West Since 1953
lABOlil:.~TOIIIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-14_06162022
Matrix: Water
Date Sampled: 6/16/22 6:55
Chloride
Nitrate+ Nitrite, Total, as N
\ olat1h-( >ri.:an1,· ( ·0111po111uh
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
48.4
5.3
< 1.0
1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.20
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11 :30@ 0.3 ·c
Date Reported: 6/29/2022
Project Name: 2nd Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 82600 /5030A
EPA 8260015030A
EPA 82600 /5030A
EPA 8260015030A
CtF WO#: 22F1630
Preparation
Date/Time
6/23/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Lab ID: 22Fl630-10
Analysis
Dale/Time
6/24/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Page 12 of35
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,80fit.o\TORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: MW-26_06082022
Matrix: Water
Date Sampled: 6/8/22 13:05
Chloride
Nitrate+ Nitrite, Total, as N
\ olatik Or:.:a111t· ( om1u1111HI,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
63.4
0.22
< 1.0
611
< 1.0
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.10
1.0
100
1.0
1.0
PO#:
Receipt: 6/10/22 13:45@ 1.4 °C
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22F0972
Preparation
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Lab ID: 22F0972-10
Analysis
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Page 12 of 31
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,80RATOf!IU
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-16_06222022
Matrix: Water
Date Sampled: 6/22/22 8:06
lnor!,!anir
Chloride
Nitrate+ Nitrite, Total, as N
Carbon Tetrachloride
Chloroform
Chlorornethane
Methylene Chloride
93.2
4.2
< 1.0
120
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.0
0.50
1.0
10.0
1.0
1.0
PO#:
Receipt: 6/23/22 12:00 @ 2.3 °C
Date Reported: 7/11/2022
Project Name: 2nd 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#: 22F2101
Preparation
Date/Time
6/30/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
Lab ID: 22F2101-06
Analysis
Date/Time
6/30/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
J-LOW
Page 8 of23
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
LA60RATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: MW-32_05162022
Matrix: Water
Date Sampled: 5/16/22 12:20
11101'1!:tllit·
Chloride
Nitrate+ Nitrite, Total, as N
\ olatilt· OrL:anit· ( om pound,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
26.9
<0.1
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.1
1.0
1.0
1.0
1.0
PO#:
Receipt: 5/18/22 12:20@ 0.9 °C
Date Reported: 6/2/2022
Project Name: 2nd 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#: 22E1499
Preparation
Date/Time
5/24/22
5/24/22
5/26/22
5/26/22
5/26/22
5/26/22
Lab ID: 22El499-01
Analysis
Date/Time
5/24/22
5/24/22
5/26/22
5/26/22
5/26/22
5/26/22
MS-Low
J-LOW
Page 3 of 10
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
l480RAT01flf5
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-18_06222022
Matrix: Water
Date Sampled: 6/22/22 7:40
lnor!!:tnir
Chloride
Nitrate+ Nitrite, Total, as N
\ olatilt· Or1.?a111r ( ·1111qH1111111<.
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
48.1
3.4
< 1.0
62.9
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
!J.mJ.!
5.0
0.20
l.O
l.O
1.0
1.0
PO#:
Receipt: 6/23/22 12:00@ 2.3 °C
Date Reported: 7/11/2022
Project Name: 2nd Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D 15030A
EPA 8260D 15030A
EPA 8260D /5030A
CtF WO#: 22F2101
Preparation
Date/Time
6/30/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
Lab ID: 22F2101-04
Analysis
Date/Time
6/30/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
J-LOW
Page 6 of23
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.Ol'~T OltlCS
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-19_06082022
Matrix: Water
Date Sampled: 6/8/22 14:55
l nori::mir
Chloride
Nitrate+ Nitrite, Total, as N
\ olatill-Ori:anll' ( ·ompo11111b
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
128
1.4
2.7
2540
4.0
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
10.0
0.10
1.0
100
1.0
1.0
PO#:
Receipt: 6/10/22 13:45@ 1.4 °C
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
EPA 82600 /5030A
CtF WO#: 22F0972
Preparation
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Lab ID: 22F0972-05
Analysis
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Page 7 of 31
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
LABORATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-21_06082022
Matrix: Water
Date Sampled: 6/8/22 12:05
l11,11-i!ani1·
Chloride
Nitrate+ Nitrite, Total, as N
\ olat1h-Ori.:anu· ( ompouml-
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
331
8.9
< 1.0
657
< l.O
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
10.0
0.50
1.0
100
1.0
1.0
PO#:
Receipt: 6/10/22 13:45@ 1.4 ·c
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D 15030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22F0972
Preparation
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Lab ID: 22F0972-04
Analysis
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Page 6 of 31
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.4.SOR,\TOJtlfS
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-22_06082022
Matrix: Water
Date Sampled: 6/8/22 12:35
I II lll)!llll it
Chloride
Nitrate+ Nitrite, Total, as N
\ olatilt· On.!a111t· ( ompo111H1'
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
564
45
< 1.0
2600
4.4
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
10.0
2.0
1.0
100
1.0
1.0
PO#:
Receipt: 6/10/22 13:45 @ 1.4 °C
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22F0972
Preparation
Date/Time
6/17/22
6/21/22
6/14/22
6/14/22
6/14/22
6/14/22
Lab ID: 22F0972-14
Analysis
Date/Time
6/17/22
6/21/22
6/14/22
6/14/22
6/14/22
6/14/22
Page 16 of 31
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/11:!0RATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-23_06162022
Matrix: Water
Date Sampled: 6/16/22 7:43
Chloride
Nitrate+ Nitrite, Total, as N
\ olalill' Or:!:lllll" ( ·0111po11111is
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
49.2
0.10
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
!d.!!!i!
1.0
0.10
l.O
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11 :30@ 0.3 °C
Date Reported: 6/29/2022
Project Name: 2nd Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA 300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22F1630
Preparation
Date/Time
6/23/22
6/27/22
6/25/22
6/25/22
6/25/22
6/25/22
Lab ID: 22Fl630-15
Analysis
Date/Time
6/24/22
6/27/22
6/25/22
6/25/22
6/25/22
6/25/22
Page 17 of 35
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.80fitAfORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-24_06082022
Matrix: Water
Date Sampled: 6/8/22 12:25
l11orl!ani1·
Chloride
Nitrate+ Nitrite, Total, as N
\ nlatik ( )r·l!,11111' C ·,1111po1111d,
Carbon Tetrachloride
Chlorofom1
Chloromethane
Methylene Chloride
944
35
< 1.0
124
< 1.0
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
100
1.0
1.0
10.0
1.0
1.0
PO#:
Receipt: 6/10/22 13:45@ 1.4 °C
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22F0972
Preparation
Date/Time
6/20/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Lab ID: 22F0972-02
Analysis
Date/Time
6/20/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Page 4 of 31
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
l/\130~•\TORll:S
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-25_06082022
Matrix: Water
Date Sampled: 6/8/22 12:15
l1111q!anil·
Chloride
Nitrate+ Nitrite, Total, as N
\ olatik ( )rganil· ( ompourHI~
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
72.8
0.88
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.10
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/10/22 13:45@ 1.4 °C
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22F0972
Preparation
Date/Time
6/17/22
6/20/22
6/14/22
6/14/22
6/14/22
6/14/22
Lab ID: 22F0972-01
Analysis
Date/Time
6/17/22
6/20/22
6/14/22
6/14/22
6/14/22
6/14/22
Page 3 of 31
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
LABOft,.\TORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-26_06222022
Matrix: Water
Date Sampled: 6/22/22 8:41
lnm·!!ani,·
Chloride
Nitrate+ Nitrite, Total, as N
\ olatik Or:.:anH· ( 0111po111uh
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
34.0
9.9
< 1.0
790
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Repm·ting
Limit
5.0
0.50
l.O
JOO
1.0
1.0
PO#:
Receipt: 6/23/22 12:00@ 2.3 °C
Date Reported: 7/11/2022
Project Name: 2nd 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#: 22F2101
Preparation
Date/Time
7/1/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
Lab ID: 22F2101-10
Analysis
Date/Time
7/1/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
J-LOW
Page 12 of23
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
LA60~ATORIE5
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-27_06162022
Matrix: Water
Date Sampled: 6/16/22 8:16
lnorcank
Chloride
Nitrate+ Nitrite, Total, as N
\ olallk ()rcanil· ( 111111H1111uls
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
22.3
20
< 1.0
3.1
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.50
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11:30@ 0.3 °C
Date Reported: 6/29/2022
Project Name: 2nd 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#: 22F1630
Preparation
Date/Time
6/23/22
6/27/22
6/25/22
6/25/22
6/25/22
6/25/22
Lab ID: 22Fl630-18
Analysis
Date/Time
6/24/22
6/27/22
6/25/22
6/25/22
6/25/22
6/25/22
Page 20 of 35
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
l.46:0R:,HORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-28_06152022
Matrix: Water
Date Sampled: 6/15/22 7:23
11101·1,!:tlli,·
Chloride
Nitrate+ Nitrite, Total, as N
\ olatil,· Or:.:a111<· ( 0111po111ul<,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
52.3
15
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.50
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11:30 @0.3 °C
Date Reported: 6/29/2022
Project Name: 2nd Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 82600 /5030A
CtF WO#: 22F1630
Preparation
Date/Time
6/23/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Lab ID: 22Fl630-05
Analysis
Date/Time
6/24/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Page 7 of 35
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
LABORATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-29_06222022
Matrix: Water
Date Sampled: 6/22/22 8:24
I 11111·1.!an il
Chloride
Nitrate + Nitrite, Total, as N
\ olalih-( lrcan1l' C 11111po11111h
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
41.5
2.9
< 1.0
398
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.0
0.10
1.0
50.0
1.0
1.0
PO#:
Receipt: 6/23/22 12:00@ 2.3 °C
Date Reported: 7/11/2022
Project Name: 2nd 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#: 22F2101
Preparation
Date/Time
6/30/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
Lab ID: 22F2101-08
Analysis
Date/Time
6/30/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
J-LOW
Page 10 of 23
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: TW4-30_06222022
Matrix: Water
Date Sampled: 6/22/22 7:55
lnori.:anir
Chloride
Nitrate+ Nitrite, Total, as N
\ olatik Organll" ( ompourui..
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
41.3
2.8
< 1.0
70.8
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.0
0.20
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/23/22 12:00@ 2.3 ·c
Date Reported: 7/11/2022
Project Name: 2nd 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#: 22F2101
Preparation
Date/Time
6/30/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
Lab ID: 22F2101-05
Analysis
Date/Time
6/30/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
J-LOW
Page 7 of 23
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
LA80AATOIIIE5
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-31_06162022
Matrix: Water
Date Sampled: 6/16/22 7:05
Chloride
Nitrate+ Nitrite, Total, as N
\ olalil,· 01·:.:ann· I 0111p11111nl-
Carbon Tetrachloride
Chloroform
Chlorornethane
Methylene Chloride
35.5
0.41
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.10
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11:30 @0.3 °C
Date Reported: 6/29/2022
Project Name: 2nd Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D 15030A
EPA 8260D 15030A
EPA 8260D 15030A
EPA 8260D /5030A
CtF WO#: 22F1630
Preparation
Date/Time
6/23/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Lab ID: 22Fl630-ll
Analysis
Date/Time
6/24/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Page 13 of 35
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: TW4-32_06152022
Matrix: Water
Date Sampled: 6/15/22 7:32
l norl.(ani,
Chloride
Nitrate+ Nitrite, Total, as N
\ olatrl,· Orl!anll· I 11111p1111r11h
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
49.4
1.2
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.20
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11 :30@ 0.3 ·c
Date Reported: 6/29/2022
Project Name: 2nd 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#: 22F1630
Preparation
Date/Time
6/23/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Lab ID: 22Fl630-06
Analysis
Date/Time
6/24/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Page 8 of 35
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
L1160RATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-33_06222022
Matrix: Water
Date Sampled: 6/22/22 7:25
fnf)l'l!illlir
Chloride
Nitrate+ Nitrite, Total , as N
\ olatik ( )ri:a111l' ( 0111po111uls
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
56.7
3.7
< 1.0
58.7
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.0
0.20
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/23/22 12:00 @ 2.3 ·c
Date Reported: 7/11/2022
Project Name: 2nd 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#: 22F2101
Preparation
Date/Time
6/30/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
Lab ID: 22F2101-03
Analysis
Date/Time
6/30/22
6/30/22
6/29/22
6/29/22
6/29/22
6/29/22
J-LOW
Page 5 of 23
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
LA80R,\TOIIJES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-34_06162022
Matrix: Water
Date Sampled: 6/16/22 7:21
I 11111·!!a11i1·
Chloride
Nitrate+ Nitrite, Total, as N
\ olat1l1· Or!!a1111· ( 0111pm11ul,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
19.5
1.0
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.10
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11:30@0.3 °C
Date Reported: 6/29/2022
Project Name: 2nd 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#: 22F1630
Preparation
Date/Time
6/23/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Lab ID: 22Fl630-13
Analysis
Date/Time
6/24/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Page 15 of 35
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
LA80RATOltlES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-35_06162022
Matrix: Water
Date Sampled: 6/16/22 7:34
I nurcanu·
Chloride
Nitrate+ Nitrite, Total, as N
\ olatilt· Ori.:an11· ( 11111p1111111I,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
31.2
1.6
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg.IL
mg.IL
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.10
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11 :30@ 0.3 ·c
Date Reported: 6/29/2022
Project Name: 2nd 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#: 22F1630
Preparation
Date/Time
6/23/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Lab ID: 22Fl630-14
Analysis
Date/Time
6/24/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Page 16 of 35
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
LA801i11\TORIE5
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-36_06152022
Matrix: Water
Date Sampled: 6/15/22 7:48
Chloride
Nitrate+ Nitrite, Total, as N
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
68.8
< 0.10
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.10
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11:30@ 0.3 ·c
Date Reported: 6/29/2022
Project Name: 2nd 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#: 22F1630
Preparation
Date/Time
6/23/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Lab ID: 22Fl630-08
Analysis
Date/Time
6/24/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Page 10 of 35
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
lA60RAT01tlfS
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-37 _06082022
Matrix: Water
Date Sampled: 6/8/22 12:45
lnon.:anir
Chloride
Nitrate+ Nitrite, Total, as N
\ olatill· Or:.:,rnir ( om pound,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
267
28
8.2
46800
12.0
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
10.0
2.0
1.0
1000
1.0
1.0
PO#:
Receipt: 6/10/22 13:45@ 1.4 °C
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22F0972
Preparation
Date/Time
6/17/22
6/21/22
6/14/22
6/14/22
6/14/22
6/14/22
Lab ID: 22F0972-15
Analysis
Date/Time
6/17/22
6/21/22
6/14/22
6/14/22
6/14/22
6/14/22
Page 17 of31
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
LA80RATOlt1ES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-38_06162022
Matrix: Water
Date Sampled: 6/16/22 7:55
lnoq!anir
Chloride
Nitrate+ Nitrite, Total, as N
\ ola1il1· Oq!an11· I 0111pou111I,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
37.3
7.9
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.50
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11 :30@ 0.3 ·c
Date Reported: 6/29/2022
Project Name: 2nd 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#: 22F1630
Preparation
Date/Time
6/23/22
6/27/22
6/25/22
6/25/22
6/25/22
6/25/22
Lab ID: 22Fl630-16
Analysis
Date/Time
6/24/22
6/27/22
6/25/22
6/25/22
6/25/22
6/25/22
Page 18 of 35
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.t\ORAlOAIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-39_06082022
Matrix: Water
Date Sampled: 6/8/22 12:55
Chloride
Nitrate+ Nitrite, Total, as N
\olatilt· Or:.:.tnH· ( or111111111nls
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
76.8
9.0
< 1.0
982
1.4
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.50
1.0
100
1.0
1.0
PO#:
Receipt: 6/10/22 13:45 @ 1.4 °C
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22F0972
Preparation
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Lab ID: 22F0972-06
Analysis
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Page 8 of 31
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com CHEMTECH·FORO Serving the lntermountain West Since 1953
LABORATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-40_06082022
Matrix: Water
Date Sampled: 6/8/22 14:38
lnm·cani(
Chloride
Nitrate+ Nitrite, Total, as N
\ olat1ll' Or:.:anu· ( ompou11<I,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
36.6
1.9
< 1.0
323
< 1.0
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.10
1.0
JOO
1.0
1.0
PO#:
Receipt: 6/10/22 13:45@ 1.4 °C
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22F0972
Preparation
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Lab ID: 22F0972-03
Analysis
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Page 5 of 31
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com CHEMTECH·FORO Serving the lntermountain West Since 1953
l!..80R,\TORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-41_06082022
Matrix: Water
Date Sampled: 6/8/22 14:15
I norl!ani1·
Chloride
Nitrate+ Nitrite, Total, as N
\ olatik Or:.::11111· ( ompou1ul,
Carbon Tetrachloride
Chlorofom1
Chloromethane
Methylene Chloride
41.1
6.0
< 1.0
1010
< 1.0
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
!J.m.i!
1.0
0.20
1.0
100
1.0
1.0
PO#:
Receipt: 6/10122 13:45 @ 1.4 ·c
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22F0972
Preparation
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Lab ID: 22F0972-11
Analysis
Date/Time
6/17/22
6/13/22
6/14/22
6/14/22
6/14/22
6/14/22
Page 13 of 31
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/\60~~\TOIIIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-42_06152022
Matrix: Water
Date Sampled: 6/15/22 7:00
lnorcanil·
Chloride
Nitrate+ Nitrite, Total, as N
\ olalill-()r1.:an1r < u1111H1t1111h
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
24.0
3.3
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.20
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11:30@0.3 °C
Date Reported: 6/29/2022
Project Name: 2nd Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA 300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22F1630
Preparation
Date/Time
6/23/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Lab ID: 22F1630-03
Analysis
Date/Time
6/24/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Page 5 of 35
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
LABOlilATOIIIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-43_06162022
Matrix: Water
Date Sampled: 6/16/22 7:13
I norcanir
Chloride
Nitrate+ Nitrite, Total, as N
\ ol:lliil' ( )q.!allll' ( 11111pom11I,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
41.8
0.24
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.10
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11 :30 @ 0.3 ·c
Date Reported: 6/29/2022
Project Name: 2nd 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#: 22F1630
Preparation
Date/Time
6/23/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Lab ID: 22F1630-12
Analysis
Date/Time
6/24/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Page 14 of 35
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
l,._BOIUTORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-60_06092022
Matrix: Water
Date Sampled: 6/9/22 7:15
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\ olatik Organll' ( 11mp11u111h
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
< 1.0
< 0.10
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.10
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/10/22 13:45@ 1.4 °C
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22F0972
Preparation
Date/Time
6/17/22
6/20/22
6/17/22
6/17/22
6/17/22
6/17/22
Lab ID: 22F0972-16
Analysis
Date/Time
6/17/22
6/20/22
6/17/22
6/17/22
6/17/22
6/17/22
Page 18 of 31
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com CHEMTECH-FORD
lA$0.-*'l0llf:5
Serving the lntermountain West Since 1953
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-65_06152022
Matrix: Water
Date Sampled: 6/15/22 7:00
lnori:anir
Chloride
Nitrate+ Nitrite, Total, as N
\ olatil1· ( )ri:a1111· ( 11111po11111I,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
22.7
2.7
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.10
LO
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11 :30@ 0.3 ·c
Date Reported: 6/29/2022
Project Name: 2nd Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 82600 /5030A
CtF WO#: 22F1630
Preparation
Date/Time
6/23/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Lab ID: 22Fl630-09
Analysis
Date/Time
6/24/22
6/21/22
6/23/22
6/23/22
6/23/22
6/23/22
Page 11 of 35
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
LA80Jil"'TORIE5
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-70_06162022
Matrix: Water
Date Sampled: 6/16/22 7:55
lrwrcanir
Chloride
Nitrate+ Nitrite, Total, as N
\ nlat,ll· Orl,!anrr ( 0111po1111!1,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
33.7
8.2
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
0.50
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11:30@ 0.3 ·c
Date Reported: 6/29/2022
Project Name: 2nd 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#: 22F1630
Preparation
Date/Time
6/23/22
6/27/22
6/25/22
6/25/22
6/25/22
6/25/22
Lab ID: 22Fl630-21
Analysis
Date/Time
6/24/22
6/27/22
6/25/22
6/25/22
6/25/22
6/25/22
Page 23 of 35
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
Lf~f!ORATOIIIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-75_06222022
Matrix: Water
Date Sampled: 6/22/22 7:40
lnun!anit
Chloride
Nitrate+ Nitrite, Total, as N
\ olarik ( )rcallll' < ·11111p11111llh
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
41.4
3.3
< 1.0
53.2
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
5.0
0.10
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/23/22 12:00@ 2.3 °C
Date Reported: 7/11/2022
Project Name: 2nd 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#: 22F2101
Preparation
Date/Time
7/1/22
6/30/22
6/30/22
6/30/22
6/30/22
6/30/22
Lab ID: 22F2101-11
Analysis
Date/Time
7/1/22
6/30/22
6/30/22
6/30/22
6/30/22
6/30/22
Page 13 of23
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com CHEMTECH•FORD SeNing the lntermountain West Since 1953
lA801'(.ATOP.IES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: Trip Blank
Matrix: Water
Date Sampled: 5/16/22 12:20
\ olatil,· ( )q.:anir ( ompounih
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
1.0
1.0
1.0
PO#:
Receipt: 5/18/22 12:20@ 0.9 °C
Date Reported: 6/2/2022
Project Name: 2nd Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
CtF WO#: 22E1499
Preparation
Date/Time
5/26/22
5/26/22
5/26/22
5/26/22
Lab ID: 22E1499-02
Analysis
Date/Time
5/26/22
5/26/22
5/26/22
5/26/22
J·LOW
Page 4 of 10
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
l/\90ftAT0"1[$
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: Trip Blank
Matrix: Water
Date Sampled: 6/8/22 12:05
\ olarik Orl!:lllll" ( ompo11111h
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/10/22 13:45@ 1.4 ·c
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
Sampled By: Tanner Holliday
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D 15030A
EPA 8260D 15030A
CtF WO#: 22F0972
Preparation
Date/Time
6/17/22
6/17/22
6/17/22
6/17/22
Lab ID: 22F0972-l 7
Analysis
Date/Time
6/17/22
6/17/22
6/17/22
6/17/22
Page 19 of 31
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com CHEMTECH·FORD
1..4.&0to\TOlfB
Serving the lntermountain West Since 1953
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: Trip Blank
Matrix: Water
Date Sampled: 6/14/22 8:20
\ olatill· Or!!an11· ( 11111po11ml,
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
< 1.0
< 1.0
< LO
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/17/22 11:30@ 0.3 °C
Date Reported: 6/29/2022
Project Name: 2nd Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA 8260D /5030A
EPA 8260D /5030A
EPA 8260D /5030A
EPA 82600 /5030A
CtF WO#: 22F1630
Preparation
Date/Time
6/25/22
6/25/22
6/25/22
6/25/22
Lab ID: 22Fl630-22
Analysis
Date/Time
6/25/22
6/25/22
6/25/22
6/25/22
Page 24 of35
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
LI\BORATOFIIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: Trip Blank
Matrix: Water
Date Sampled: 6/21/22 7:40
\ olar,k Orc,rn1l" ( ompo11111h
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/23/22 12:00@ 2.3 °C
Date Reported: 7/11/2022
Project Name: 2nd Quarter Chloroform 2022
Sampled By: Tanner Holliday
EPA 8260D /S030A
EPA 8260D /S030A
EPA 8260D /S030A
EPA 8260D /S030A
CtF WO#: 22F2101
Preparation
Date/Time
6/29/22
6/29/22
6/29/22
6/29/22
Lab ID: 22F2101-12
Analysis
Date/Time
6/29/22
6/29/22
6/29/22
6/29/22
J-LOW
Page 14 of 23
9632 South 500 West
CHEMTECH·FORD
LA60~/\TO ~ I E5
6/2/2022
Work Order: 22E 1499
Pro.icct: 2nd 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 were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case 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 lntermountain West since 1953
www.ChemtechFord.com
CHEMTECH-FORD
LABORATORIES
Energy Fuels Resources, Inc.
Project: 2nd Quarter Chloroform 2022
Project Manager: Tanner Holliday
Laboratory ID
22E1499-01
22E1499-02
Sample Name
MW-32_ 05162022
Trip Blank
Work Order Report Narrative
Sample Preparation
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.
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.
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
CtF WO#: 22E1499
CHEMTECH-FORD L!,80FCA.TOftlES
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 detected at the corresponding Minimum Reporting Limit (MRL).
PO#:
Receipt: 5/18/22 12:20@ 0.9 °C
Date Reported: 6/2/2022
Project Name: 2nd Quarter Chloroform 2022
I mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million
1 ug/L = one microgram per liter or I ug/kg = one microgram per kilogram = I part per billion.
I ng/L = one nanogram per liter or I ng/kg = one nanogram per kilogram = I part per trillion,
Flag Oescrlptlons
J-LOW = Estimated low due to low recovery ofLCS or CCV
MS-Low= Estimated low due to Matrix Spike recovery.
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
CtF WO#: 22E1499
Page 5 of 10
()1
(.:2
3
8
0
10 I
I
12 I
American West
Analytical Laboratories
463W.3600S. Saltl.al<eCity,UT 84115
Phone# [phone] Toll Free# [phone] ~ Fax# [phone] Email [e-mail]
www.awal-labs.com
Client: Energy Fuels Resources, Inc.
Address: 6425 8. Hwy. 191
Blanding, UT 84511
Contact: Tanner HoWday
Phone#'. [phone] Cell#'.
Emai: tholllda~--c,fllela.-: KWehlel'@ea-c,fllela.-
Project Name: 2nd Qquter Chloroform 2022
Project It.
PO#'.
Sampler Name: Tanner HoWday
Date
Sample ID: Sampled
IIW-32_05162022 5/16/2022
TRIPBLAIIK 5/16/2022
Rolinqushed by: _:j IP~ ate: Sin--o.AftUC. 5117.-,,,.,.:
Time: --TANNER_HOWOAY ,,,..
~oli~by: Date: -Tlme:
...... Nano:
Relinquished by: Dete: .......... _
Time:
PllnLName:
Rollnq<ahed by: oae: ......... _
;nne:
Prinl Name:
I
Time
Sampled
1220
1220
Received by: ..... __
CHAIN OF CUSTODY
All analyols wlll be conducted Llllfng NELAP ocaadltod melrods and al data will be repo,lod """1g AWl'u.'s standllld analyte lial& and """"1ing
limits (PQL) -opecifically raqtMslod -on ll1ie Chain ol Custody end/or allachad ..,...,_allcn.
QC Level: I Tum Around Time: 1 lJnl--a~have-.moc1e,
3 Standard
--~•-o,,m~•
!he day lhay an, due,
X Include EDD:
LOCUS UPLOAD
EXCEL
Field Filtered For:
For Compliance With:
tJ NELAP
D RCRA
D CWA
D SOWA
D ELAP/A2LA
o' D NLLAP ~ ci D Non-Compliance ~ 0 G' D Other: <') e ~ )( .. 0 CD Q 'O C: :s l'I 0 C'l ]i i i 0 ~ Known Hazards C: II) 8 CD ..... :'t. • I N 0 & 'o i El g .. Sample Comments ... "'
5 w X X X
3 w X
Date: Special Instructions: I /
-~~(" 4 __/ ~
~2~/W
AWAl Lab Sample Set#
Page 1 of
Due Date:
Laboratory Use Only
Sempleo Were:
1 Shipped or hm1d de!Nered Nn-62 2
Tomperahre Q.:.f. •c 3
• Reallvod~rog
(lml>ft)INWly SNlod)
y N
5 Properly-ad
y N
Chedcodalbendl
y N
n ReallvodWlll'lin
HokUngTlmM
y N
COCTapeWaa:
1 f!("" on Ot.tor P""'-
y I N NA
N NA 2 5 "" on Ckior P"""-
3 -on Sample 6 y N
4 Unbrol<enonSample $ y N
8-Semple
y N ~ and coc Roootd'IC;
f{ecar,9" by: ~/;1-, -_/ • .( I 'J 6:.A ~ _/ o~//f//.. See the Analytical Scope of Work for Reporting Limits and voe L--,K / "L-"'l--analyte list.
/ ~ nme: /
"""Nano: 2..2-11
Received by: JOtllle: --lime: --Received by: Date: --Tune,
°"""Narna:
Work Order# 6 2, c-1y:-c;9
Delivery Method:
{UPS
111111111111111111 12187Y4Y03
~ ·----.. ,-
Samplel
a;
c··2--
j
D USPS
h courier
Courier
.. -.... c;llem1edl lot. .I I ••
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Misc
Volume
IIIQIIIIJ
CHEMTECH FORD LABORATORIES
Sample Receipt
Receiving Temperature (). j ·c
. .._ ,...,__., ..... -.. :
~ . . ·.,
Comm~
I
CHEMTECH-FORD
LAB0RAT0Rtf5
sample Condition
(cheddf~)
Custody Seals
Containers Intact
COC can be matched to bottles
Sufficent Sample Volume
Received within Holding Time
Plastic Contalnel'$
A• Pl,;stilc Un?,~~l'(J
8· Miscellaneous Plastic
C• Cvan;de Qt (NaOH)
E· Coliform/Ecoli/HPC
F, Sulfide Qt (Zn Acetate)
l· Mercury 1631
M~ Metals Pint (HN03)
N• Nutrient Pint (H2S04)
R· Radiological (HN03)
S--Sludge Cups/Tubs
Q· Plastic Sag
Glass Containers
0-625 (Na2S203)
G-Glass Unpreserved
H-HMs (NH4CI)
J. 508/515/525 (Na2S03)
K-515,3 Herbicides
O~ Oil & Grease (HCI)
P-Phenols (H2S04)
T· TOC/TOX (H3P04)
U-531 (MCAA, Na2S203)
V· 524/THMs (Ascorbic Acid)
W-8260VOC {1:1 HCI)
X· Vial Unpreserved
Y-624/504 (Na2S203)
z. Miscellaneous Glass
Analyte
QC Sample ID: BWEI 140-BLKl
Date Prepared: 05/24/2022
Chloride
QC Sample ID: BWE1140-BS1
Date Prepared: 05/24/2022
Chloride
QC Sample ID: BWEl 140-MSI
Date Prepared: 05/24/2022
Chloride
QC Sample ID: BWE1140-MS2
Date Prepared: 05/24/2022
Chloride
QC Sample ID: BWEI140-MSD1
Date Prepared: 05/24/2022
Chloride
QC Sample ID: BWE1140-MSD2
Date Prepared: 05/24/2022
Chloride
CtF WO#: 22E1499
www.ChemtechFord.com
QC Report for Work Order (WO) -22E1499
% Rec RPD Limits RPD Max Result Source Cone
Blank -EPA 300.0
Batch: BWE1140
Date Analyzed: 05/25/2022
ND
LCS -EPA 300.0
Batch: BWE1140
Date Analyzed: 05/25/2022
99.8 90 -110 49.9
Matrix Spike -EPA 300.0
Batch: BWEI 140 QC Source Sample: XXXXXXX-XX
Date Analyzed: 05/24/2022
93.8 80 -120 30900 26200
Batch: BWE1140 QC Source Sample: 22£1499-01
Date Analyzed: 05/24/2022
96.0 80 -120 219 26.9
Matrix Spike Dup -EPA 300.0
Batch: BWE1140 QC Source Sample: XXXXXXX-XX
Date Analyzed: 05/24/2022
94.5 0.119 80 -120 20 30900 26200
Batch: BWE1140 QC Source Sample: 22£1499-01
Date Analyzed: 05/24/2022
96.9 0.795 80 -120 20 221 26.9
Spk Value MRL DF
1.0 1.00
50.0 1.0 1.00
5000 550 1.00
200 22.0 1.00
5000 550 1.00
200 22.0 1.00
QC Report for Work Order (WO) -22E1499
Analyte %Rec RPD Limits RPD Max Result Source Cone Spk Value
Blank -EPA 353.2
QC Sample ID: BWEI 114-BLKI Batch: BWE1114
Date Prepared: 05/24/2022 Date Analyzed: 05/24/2022
Nitrate+ Nitrite, Total, as N ND
LCS -EPA 353.2
QC Sample ID: BWEI114-BS1 Batch: BWEI114
Date Prepared: 05/24/2022 Date Analyzed: 05/24/2022
Nitrate+ Nitrite, Total, as N 102 80 -120 2.0 2.00
Matrix Spike -EPA 353.2
QC Sample ID: BWEI114-MS1 Batch: BWEll 14 QC Source Sample: 22El499-0l
Date Prepared: 05/24/2022 Date Analyzed: 05/24/2022
Nitrate+ Nitrite, Total, as N 90.8 80 -120 1.0 0.08 1.00
QC Sample ID: BWE1114-MS2 Batch: BWEll 14 QC Source Sample: XXXXXXX-XX
Date Prepared: 05/24/2022 Date Analyzed: 05/24/2022
Nitrate+ Nitrite, Total, as N 76.5 80 -120 8.9 8.2 1.00
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.
QC Sample ID: BWEl 114-MSDl
Date Prepared: 05/24/2022
Nitrate+ Nitrite, Total, as N
QC Sample ID: BWEI l 14-MSD2
Date Prepared: 05/24/2022
Nitrate+ Nitrite, Total, as N
CtF WO#: 22E1499
www.ChemtechFord.com
Matrix Spike Dup -EPA 353.2
Batch: BWEI ll4 QC Source Sample: 22EI499-0l
Date Analyzed: 05/24/2022
85.8 5.19 80 -120 20 0.9 0.08
Batch: BWEll 14 QC Source Sample: XXXXXXX-XX
Date Analyzed: 05/24/2022
96.9 2.26 80 -120 20 9.1 8.2
1.00
1.00
MRL DF
0.1 1.00
0.1 1.00
0.1 1.00
0.5 5.00
0.1 1.00
0.5 5.00
QC Report for Work Order (WO) -22E1499
Analyte % Rec RPO Limits RPO Max Result Source Cone
Blank -EPA 82600 /5030A
QC Sample ID: BWE1343-BLK1 Batch: BWE1343
Date Prepared: 05/26/2022 Date Analyzed: 05/26/2022
Carbon Tetrachloride ND
Chloroform ND
Chloromethane ND
J-LOW -Estimated low due to low recovery of LCS or CCV
Methylene Chloride ND
LCS -EPA 8260D /5030A
QC Sample ID: BWE1343-BSI Batch: BWE1343
Date Prepared: 05/26/2022 Date Analyzed: 05/26/2022
Carbon Tetrachloride 94.6 70 -130 9.46
Chloroform 92.1 70 -130 9.21
Chloromethane 65.8 70 -130 6.58
J-LOW -Estimated low due to low recovery of LCS or CCV
Methylene Chloride 108 70 -130 10.8
Matrix Spike -EPA 8260D /5030A
QC Sample ID: BWEI343-MS1 Batch: BWE1343 QC Source Sample: 22El499-01
Date Prepared: 05/26/2022 Date Analyzed: 05/26/2022
Carbon Tetrachloride 70.5 70 -130 35.2
Chloroform 84.6 70 -130 42.3
Chloromethane 56.3 70 -130 28.2
J-LOW -Estimated low due to low recovery of LCS or CCV
Methylene Chloride 99.8 70 -130 49.9
Matrix Spike Dup -EPA 8260D /5030A
QC Sample ID: BWEI343-MSD1 Batch: BWE1343 QC Source Sample: 22El499-01
Date Prepared: 05/26/2022 Date Analyzed: 05/26/2022
Carbon Tetrachloride 67.8 3.90
MS-Low -Estimated low due to Matrix Spike recovery.
Chloroform 90.4 6.63
Chloromethane 55.3 1.79
J-LOW -Estimated low due to low recovery of LCS or CCV
Methylene Chloride
CtF WO#: 22E1499
www.ChemtechFord.com
104 4.12
70-130 20 33.9
70 -130 20 45.2
70 -130 20 27.6
70 -130 20 52.0
ND
ND
ND
ND
ND
ND
ND
ND
Spk Value MRL OF
1.0 1.00
1.0 1.00
1.0 1.00
1.0 1.00
10.0 1.0 1.00
10.0 1.0 1.00
10.0 1.0 1.00
10.0 1.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
Surrogates Report for Work Order (WO) -22E1499
QCID Analyte % Rec LCL UCL Result Spk Value
Blank -EPA 82600 /5030A
BWE1343-BLK1 1,2-Dichloroethane-d4 82.9 64.2 126 8.29 10.0
BWE1343-BLK1 4-Bromofluorobenzene 105 71 .4 122 10.5 10.0
BWE 1343-BLK 1 Toluene-dB 116 63.2 129 11.6 10.0
LCS -EPA 82600 /5030A
BWE1343-BS1 1,2-Dichloroethane-d4 84.7 64.2 126 8.47 10.0
BWE1343-BS1 4-Bromofluorobenzene 82.8 71.4 122 8.28 10.0
BWE1343-BS1 Toluene-dB 100 63.2 129 10.0 10.0
Matrix Spike -EPA 8260D /5030A
BWE1343-MS1 1,2-Dichloroethane-d4 84.6 64.2 126 42.3 50.0
BWE1343-MS1 4-Bromofluorobenzene 107 71.4 122 53.6 50.0
BWE1343-MS1 Toluene-dB 100 63.2 129 50.0 50.0
Matrix Spike Cup -EPA 82600 /5030A
BWE1343-MSD1 1,2-Dichloroethane-d4 80.8 64.2 126 40.4 50.0
BWE1343-MSD1 4-Bromofluorobenzene 107 71.4 122 53.7 50.0
BWE1343-MSD1 Toluene-dB 102 63.2 129 51 .0 50.0
Surrogate Recoveries (Field Samples)
LabNumber Analyte Result Spklvl %Rec LCL UCL
8260 Low Level Volatiles
22E1499-01 Toluene-dB
22E1499-01 4-Bromofluorobenzene
22E1499-01 1,2-Dichloroethane-d4
8260 Low Level Volatiles
22E1499-02 Toluene-dB
22E1499-02
22E1499-02
4-Bromofluorobenzene
1,2-Dichloroethane-d4
CtF WO#: 22E1499
www.ChemtechFord.com
10.3
8.30
8.29
10.0
10.5
8.33
10.0
10.0
10.0
10.0
10.0 ·
10.0
103
83.0
82.9
100
105
83.3
63.2 129
71 .4 122
64.2 126
63.2 129
71.4 122
64.2 126
Batch DF
BWE1343 1.00
BWE1343 1.00
BWE1343 1.00
BWE1343 1.00
BWE1343 1.00
BWE1343 1.00
BWE1343 1.00
BWE1343 1.00
BWE1343 1.00
BWE1343 1.00
BWE1343 1.00
BWE1343 1.00
Qualifier
9632 South 500 West
I
CHEMTECH·FORD
LA60RATO ~IE 5
6/23/2022
Work Order: 22F0972
Pro.iect: 2nd Quarter Chlooform 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 were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case 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 lntermountain West since 1953
www.ChemtechFord.com
CHEM TECH-FORD
LABORATORIES
Energy Fuels Resources, Inc.
Project: 2nd Quarter Chlooform 2022
Project Manager: Tanner Holliday
Laboratory ID
22F0972-01
22F0972-02
22F0972-03
22F0972-04
22F0972-05
22F0972-06
22F0972-07
22F0972-08
22F0972-09
22F0972-10
22F0972-11
22F0972-12
22F0972-13
22F0972-14
22F0972-15
22F0972-16
22F0972-17
Sample Name
TW4-25_06082022
TW4-24_06082022
TW4-40_06082022
TW4-21_06082022
TW4-19_06082022
TW4-39_06082022
TW4-01_06082022
TW4-04_06082022
TW4-02_06082022
MW-26 _ 06082022
TW4-41_06082022
MW-04_06082022
TW4-11_06082022
TW4-22_06082022
TW4-37_06082022
TW4-60_06092022
Trip Blank
Work Order Report Narrative
Sample Preparation
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.
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.
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
CtF WO#: 22F0972
CHEMTECH·FORD lA80RATOR1£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
ND = Not detected at the corresponding Minimum Reporting Limit (MRL)
PO#:
Receipt: 6/10/22 13:45@ 1.4 °C
Date Reported: 6/23/2022
Project Name: 2nd Quarter Chlooform 2022
I mg/L = one milligram per liter or I mg/kg= one milligram per kilogram = I part per million.
I ug/L = one microgram per liter or I ug/kg = one microgram per kilogram= I part per billion.
1 ng/L = one nanogram per liter or I ng/kg = one nanogram per kilogram = I part per trillion.
Project Name: 2nd Quarter Chlooform 2022
www.ChemtechFord.com
CtF WO#: 22F0972
Page 20 of 31
11
-2
~
-~
5
' 1
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1
~
American West
Analytical Laboratories
463 W. 3600 S. Sall Lake City. UT 84115
Phone# [phone] Toll Free# [phone]
Address: 6425 8. Hwy. 191
Blandhlg, UT 84511
Contact: Tanner Holliday
Phone#: [phone] Cell#:
Email: tllollkla,@lm....,,..el&.com; K'llfela~....,,....._.,_
Project Name: 2nd Quarter Chloroform 2022
Project#:
PO#:
Sampler Name: Tanner BoWclay ..._
:2-2f0912-\~mo:fo:2 ) Date
Sam.oled
TW4-25 06082022 6/8/2022
TW4-24 06082022 6/8/2022
TW4-40_06082022 6/8/2022
TW4-21_06082022 6/8/2022
TW4-19 06082022 6/8/2022
TW4-39 06082022 6/8/2022
TW4-01_06082022 6/8/2022
TW4-04_06082022 6/8/2fYJ.2
TW4-02 06082022 6/8/2fYJ.2
IIIW-26 06082022 6/8/2fYJ.2
\
1) TW4-41 06082022 6/8/2fYJ.2
1lil IIIW-04_06082022 6/8/2022
~ TW4-11_06082022 6/8/2fYJ.2
.~~l>r"-1 .-~.-II n ·_/ ~ 11.e-:
-ITimO: ...... _
TANNERHOIJ.IOAY 11~
·-t,y: Doi.: --lllffl9; "-'~-~~by: ,.,..., -·· nm« ~-~--t,y: .,.., --'~ --
I
Time
Samoled
1215
1225
1438
1205
1455
1255
1408
1425
1325
1305
1415
1400
1315
"""'81Valby:).,
CHAIN OF CUSTODY
All~ wl14 be conducted uaing NElAP acaadltad l1'l«hoclo '"1d al d&!l wil be n,pom,d using AWM.'s -analyte llsls lnl ,-rtfng
llm/ls(PQL)-~ requootad --on tl1ie Chain of Cullody and/Or --otlon.
QCL.ftlll: I Tum Around Time: I Unless_.,.___._, -.,_,
3 Standard -----~-~-Ille day 11\ey .. duo.
X Include EDD:
LOCUS UPLOAD
EXCEL
Field Filtered For.
For Compliance With:
D NELAP
D RCRA
D CWA
D SDWA
D ELAP/A2LA
o' D NLLAP ~ c::i D Non-Compliance ~ C D Other. .., G' I!! l:1.. .. 0 l! j (') 0 \()
C C'I ~ i C ~ Known Hazards ll') 8 .. -:t. • & 15. "' u 'o E 0 u g .. Samole Comments .. "' • s w X X X l\A..'3 / 1/\A <.. ~
I s w X X X
5 w X X X
5 w X X X
5 w X X X I u\o.\ 'ollf:-\.1) ... -bP
5 w X X X
5 w X X X
5 w X X X
5 w X X X
5 w X X X
5 w X X X
5 w X X X
5 w X X X
l Q .A/\~ )\Q-..~)-A ~ • ., ,.,.,,(.} IC \z I Special Instructions:
AWAL Lab Sample Set#
Page 1 of 2 I""·~· I
Laboratory Use Only
jSamplae w .. , u.._~ e---
2 Ambient or Chilled
3 T..._......, li·c
4RIC8ivedllnilt~
(l~SNled)
y N
5 Propelly "'-ad
y N
Chedtadlll-
y N
e Received Within
Holding TifnN
y N
COCT•W•
1 -on OUhrl'-.ge y N NA
2 Uli>n>ken on OW. P~
y N NA
3 -onSanple
y N NA
4 u-.n on Ssnple
y N NA
-San,c,f<I
~ lnl COC Reoood?
y N
--1_).p _\/"\ \<:::ti . 'Q -(' I .1. "\..A.'.\ Tim« ·,~,~y ~
-alby: 1oa1e: See the Analytical Scope of Work for Reporting Limits and voe """""'-analyte list.
I'"""' PrlntNo!M;
-edby: """'' """"""-rnme:
b...., Name:
-edby: ,._.,
UPS GROUND is....,_
T-
IDrw Nama·
TRACKING #: 1 Z 187 Y4Y 03 9322 5435 -
~
American West
Analytical Laboratories
463 W. 3600 S. Salt Lake Cijy, lJT 84115
Phone # (801) 263-l!686 Toll Free# [phone]
Fax # (801) 263""5687 Email [e-mail]
www.awal-labs.com
Client: Energy Fuels Reaources, Inc.
Address: 6425 S. Hwy. 191
Blanding, UT 84S 11
Contact: Tanner Holliday
Phone#: [phone] Cell#:
Email: tlt.olll4aJ@eaera,faela.com; K'lll'ebael@mlera,faela.com
Project Name: 2nd Quarter Chloroform 2022
Project#:-~~~~~~~~~~~~~~~~~~~~~~-
~#: I
Sampler Name: Tanner Holliday
--:i-,r:-r<Jl -, ('2cA Z) £-L..' v-i ~Sample ID:
~ TW4-22_06082022
4-60_8688989511 06092022
I per Kathy Weinel 6/14 -MC
,a
10
20
21
Date Time
Samoled Samnlf!d
6/8/2C122 1235
6/8/2C122 1246
6/9/2C122 716
6/8/2C122 1206
CHAIN OF CUSTODY
All analyajs will be <X>Oduded ualng NELAP aa:red~ed methods and all data win be n,ported ualng AWAL's oterdard analyta 11618 and reporting
llmlls (PQL) ,_ specillcally raqueolad othelWN on lhla Chain of Cuolody and/or attached documentation.
I!! " .. :s 1 ~
~ 0
't; E .. .. "'
5 w
5 w
5 w
3 w
QCLevel:
3
~ o' 0 ::i 0 <') \2. ..
(') 0
0 i 0 ll) -~ C1 i 6
X X
X X
X X
Tum Around Time:
Standard
G' 0 I() C'S ~ • g
X
X
X
X
II
u __ .,,._.,..... have been made,
otgned reports will be emallad by 5:00 pm on
""'day !hoy ... due,
Ix Include EDD:
LOCUS UPLOAD
UCJCL
Field Filtered For:
For Compliance With:
D NELAP
D RCRA
D CWA
D SOWA
D ElAP/A2LA
D Nu.AP
D Non-Compliance
D Other.
Known Hazards
&
Sample Comments
AWAL Lab Sample Set#
Page 2 of 2
Due Date:
L.abolatory Use Only
is-,...w .... , °'-. v'S
~handdellY-
2 -ora.ad
3 Tamparalln .L.1_ ·c
4 Recolved BR>l<-_-ng
(lm~Sealed)
y N
5 ~-ad
y N
Checked al bench
y N
6 Roc:aiYadWllhln
Holding T1rnN
y N
lcocT-Waa:
1 -on 0..-P-..ge
Y N NA
2 lhi>rol<on on o.-.-Package
Y N NA
3 -onSample
Y N NA
4 u-... on Sample
Y N NA
221 I I I I I I I I I I I I I I I I I lt:::::-~Sample ZI
2•
25
26
y N
L--t,y: -,_ ....... .J4JJ_~..,, Special Instructions: ......_.t=:: by: 1.Uo JA~ ii fl-;})y7 J ~ 10.•;t'.o I m l 2 2 lo.lo;
" ITimo:
TANNER HOUIOAY
t,y: Oala: ~ E ~ b R E'' I 11 -,0fS2.r-u,q .. 'Q . Ip: i./S: ==by: :,la!::~:uytical &ope of Work for Reporting Llmits and voe
"""'Nante:
""""~]
iR~-by;
lsi.n.,.,.. ..,,,,.,._
c:::'"" by:
lo,..,.N-
Oar.
IJlmo;
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DeJivery Method:
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D Walk-in D Customer Courier
r~ •. •· ~ -,.~ -. Chemtech lot #
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Sample# Container Preservative
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CHEMTECH FORD LABORATORIES
Sample Receipt
Receiving Temperature \ .~ ·c
' ~ ,,
-
I -
I' -\. , ~ ,, -
Comments
cJ 10:.,\~
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"t--r ho u\ \ -u"\'\E" vPr-HL.'tO. tr)a--l&1y\
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1.::.RC:R,,TOR i-ES
Sample Condition
('check if yes )
~todySeals
D Containers Intact~
13-LOC can be matched to bottles
~eived on Ice
~orrect Containers(s)
' ef Sufficent Sample Volume
er:;;., d,101<< P rn nt P •OCJ t:>P
D Temperature Blank
li3'1feceived within Holding Time
Plastic Containers
A-PlastYc Unpreserved
8-Miscellaneous Plastic
C-Cyanide Qt (NaOHJ
E-Coliform/Ecoli/HPC
F-Sulfide Qt (Zn Acetate)
L-Mercury 1631
M-Metals Pint (HN03)
N-Nutrient Pint (H2S04)
R-Radiological {HN03)
S-Sludge Cups/Tubs
Q-Plastic Rag
Glass Containers
Q. 625 (Na2S203)
G-Glass Unpreserved
H-HAAs (NH4CI)
I-508/515/525 (Na2503)
K-515-3 Herbicides
Q. Oil & Grease {HCI)
P-Phenols (H2S04)
T-TOC/TOX (H3P04)
U-531 {MCAA, Na2S203)
V-524/THMs (Ascorbic Acid)
W-8260 voe {1:1 HCI)
X-Vial Unpreserved
V-624/504 {Na2S203)
Z-Miscellaneous Glass
QC Report for Work Order (WO) -22F0972
Analyte % Rec RPD Limits RPD Max Result Source Cone Spk Value MRL
Blank -EPA 300.0
QC Sample ID: BWF0857-BLK1 Batch: BWF0857
Date Prepared: 06/17/2022 Date Analyzed: 06/17/2022
Chloride ND 1.0
QC Sample ID: BWF0894-BLK1 Batch: BWF0894
Date Prepared: 06/17/2022 Date Analyzed: 06/17/2022
Chloride ND 1.0
QC Sample ID: BWF1012-BLKI Batch: BWF1012
Date Prepared: 06/20/2022 Date Analyzed: 06/20/2022
Chloride ND 1.0
LCS -EPA 300.0
QC Sample ID: BWF0857-BS1 Batch: BWF0857
Date Prepared: 06/17/2022 Date Analyzed: 06/17/2022
Chloride 98.2 90 -110 49.1 50.0 1.0
QC Sample ID: BWF0894-BS1 Batch: BWF0894
Date Prepared: 06/17/2022 Date Analyzed: 06/17/2022
Chloride 101 90 -110 50.5 50.0 1.0
QC Sample ID: BWF1012-BS1 Batch: BWFI012
Date Prepared: 06/20/2022 Date Analyzed: 06/20/2022
Chloride 98.3 90 -110 49.1 50.0 1.0
Matrix Spike -EPA 300.0
QC Sample ID: BWF0857-MS1 Batch: BWF0857 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/17/2022 Date Analyzed: 06/17/2022
Chloride 57.9 80 -120 23000 20100 5000 500
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: BWF0857-MS2
Date Prepared: 06/17/2022
Chloride
QC Sample ID: BWF0894-MS1
Date Prepared: 06/17/2022
Chloride
QC Sample ID: BWF0894-MS2
Date Prepared: 06/17/2022
Chloride
QC Sample ID: BWF1012-MSI
Date Prepared: 06/20/2022
Chloride
QC Sample ID: BWF1012-MS2
Date Prepared: 06/20/2022
Chloride
QC Sample ID: BWF0857-MSD1
Date Prepared: 06/17/2022
Chloride
CtF WO#: 22F0972
www.ChemtechFord.com
Batch: BWF0857 QC Source Sample: 22F0972-0l
Date Analyzed: 06/17/2022
95.9 80 -120 169 72.8 100 11.0
Batch: BWF0894 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/17/2022
99.3 80 -120 120 21 .0 100 11 .0
Batch: BWF0894 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/17/2022
97.1 80 -120 106 9.2 100 11.0
Batch: BWFI012 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/20/2022
95.0 80 -120 99.2 4.2 100 11.0
Batch: BWFI012 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/20/2022
96.7 80 -120 146 49.6 100 11.0
Matrix Spike Dup -EPA 300.0
Batch: BWF0857 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/17/2022
56.2 0.377 80 -120 20 22900 20100 5000 500
DF
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
Analyte
QC Sample ID: BWF0857-MSD1
Date Prepared: 06/17/2022
QC Report for Work Order (WO) -22F0972
%Rec RPO limits RPO Max Result Source Cone Spk Value MRL
Matrix Spike Dup -EPA 300.0 (cont.)
Batch: BWF0857 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/17/2022
QM-RPD -The recovery was outside acceptance limits for the MS and/or MSD. The RPD 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.
QC Sample ID: BWF0857-MSD2
Date Prepared: 06/17/2022
Chloride
QC Sample ID: BWF0894-MSD1
Date Prepared: 06/17/2022
Chloride
QC Sample ID: BWF0894-MSD2
Date Prepared: 06/17/2022
Chloride
QC Sample ID: BWF1012-MSD1
Date Prepared: 06/20/2022
Chloride
QC Sample ID: BWFI012-MSD2
Date Prepared: 06/20/2022
Chloride
CtF WO#: 22F0972
www.ChemtechFord.com
Batch: BWF0857 QC Source Sample: 22F0972-0l
Date Analyzed: 06/17/2022
93.7 1.30 80 -120 20 166 72.8 100 11.0
Batch: BWF0894 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/17/2022
98.1 0.951 80-120 20 119 21 .0 100 11 .0
Batch: BWF0894 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/17/2022
95.4 1.66 80 -120 20 105 9.2 100 11.0
Batch: BWFI012 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/20/2022
95.6 0.580 80 -120 20 99.7 4.2 100 11.0
Batch: BWFI012 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/20/2022
95.5 0.821 80 -120 20 145 49.6 100 11.0
OF
1.00
1.00
1.00
1.00
1.00
QC Report for Work Order (WO) -22F0972
Analyte %Rec RPD Limits RPD Max Result Source Cone Spk Value MRL DF
Blank -EPA 353.2
QC Sample ID: BWF0598-BLK1 Batch: BWF0598
Date Prepared: 06/13/2022 Date Analyzed: 06/13/2022
Nitrate+ Nitrite, Total, as N ND 0.10 1.00
QC Sample ID: BWF0962-BLK1 Batch: BWF0962
Date Prepared: 06/20/2022 Date Analyzed: 06/20/2022
Nitrate + Nitrite, Total, as N ND 0.10 1.00
QC Sample ID: BWF1034-BLK1 Batch: BWF1034
Date Prepared: 06/21/2022 Date Analyzed: 06/21/2022
Nitrate + Nitrite, Total, as N ND 0.10 1.00
LCS -EPA 353.2
QC Sample ID: BWF0598-BS1 Batch: BWF0598
Date Prepared: 06/13/2022 Date Analyzed: 06/13/2022
Nitrate+ Nitrite, Total, as N 110 80 -120 2.2 2.00 0.10 1.00
QC Sample ID: BWF0962-BS1 Batch: BWF0962
Date Prepared: 06/20/2022 Date Analyzed: 06/20/2022
Nitrate+ Nitrite, Total, as N 90.5 80 -120 1.8 2.00 0.10 1.00
QC Sample ID: BWF1034-BS1 Batch: BWF1034
Date Prepared: 06/21/2022 Date Analyzed: 06/21 /2022
Nitrate+ Nitrite, Total, as N 99.4 80 -120 2.0 2.00 0.10 1.00
Matrix Spike -EPA 353.2
QC Sample ID: BWF0598-MSI Batch: BWF0598 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/13/2022 Date Analyzed: 06/13/2022
Nitrate+ Nitrite, Total, as N 110 80 -120 1.3 0.17 1.00 0.10 1.00
QC Sample ID: BWF0598-MS2 Batch: BWF0598 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/13/2022 Date Analyzed: 06/13/2022
Nitrate+ Nitrite, Total, as N 104 80 -120 1.3 0.22 1.00 0.10 1.00
QC Sample ID: BWF0962-MS1 Batch: BWF0962 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/20/2022 Date Analyzed: 06/20/2022
Nitrate+ Nitrite, Total, as N 79.2 80 -120 2.7 1.9 1.00 0.10 1.00
QM-010 -The MS recovery was outside acceptance limits but passed Duplicate Spike acceptance limits. The batch was
accepted based on the acceptability of the MSD as the batch Spike.
QC Sample ID: BWF0962-MS2 Batch: BWF0962 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/20/2022 Date Analyzed: 06/20/2022
Nitrate + Nitrite, Total, as N 87.3 80 -120 1.5 0.60 1.00 0.10 1.00
QC Sample ID: BWF0962-MS3 Batch: BWF0962 QC Source Sample: 22F0972-01
Date Prepared: 06/20/2022 Date Analyzed: 06/20/2022
Nitrate + Nitrite, Total, as N 100 80 -120 1.9 0.88 1.00 0.10 1.00
QC Sample ID: BWF1034-MSI Batch: BWF1034 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/21/2022 Date Analyzed: 06/21/2022
Nitrate+ Nitrite , Total, as N 106 80 -120 1.9 0.87 1.00 0.10 1.00
QC Sample ID: BWF1034-MS2 Batch: B WF 1034 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/21/2022 Date Analyzed: 06/21/2022
Nitrate+ Nitrite, Total, as N 115 80 -120 2.4 1.3 1.00 0.10 1.00
Matrix Spike Dup -EPA 353.2
QC Sample ID: BWF0598-MSD1 Batch: BWF0598 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/13/2022 Date Analyzed: 06/13/2022
CtF WO#: 22F0972
www.ChemtechFord.com
Analyte
QC Sample ID: BWF0598-MSD1
Date Prepared: 06/13/2022
Nitrate+ Nitrite, Total, as N
QC Sample ID: BWF0598-MSD2
Date Prepared: 06/13/2022
Nitrate + Nitrite, Total, as N
QC Sample ID: BWF0962-MSD1
Date Prepared: 06/20/2022
Nitrate + Nitrite, Total, as N
QC Sample ID: BWF0962-MSD2
Date Prepared: 06/20/2022
Nitrate+ Nitrite, Total, as N
QC Sample ID: BWF0962-MSD3
Date Prepared: 06/20/2022
Nitrate+ Nitrite, Total, as N
QC Sample ID: BWF1034-MSD1
Date Prepared: 06/21/2022
Nitrate+ Nitrite, Total, as N
QC Sample ID: BWF1034-MSD2
Date Prepared: 06/21/2022
Nitrate+ Nitrite, Total, as N
CtF WO#: 22F0972
www.ChemtechFord.com
QC Report for Work Order (WO) -22F0972
%Rec RPD Limits RPD Max Result Source Cone SpkValue MRL DF
Matrix Spike Dup -EPA 353.2 (cont.)
Batch: BWF0598 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/13/2022
105 3.94 80 -120 20 1.2 0.17 1.00 0.10 1.00
Batch: BWF0598 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/13/2022
106 1.73 80 -120 20 1.3 0.22 1.00 0.10 1.00
Batch: BWF0962 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/20/2022
95.1 5.79 80 -120 20 2.8 1.9 1.00 0.10 1.00
Batch: BWF0962 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/20/2022
91.9 3.07 80 -120 20 1.5 0.60 1.00 0.10 1.00
Batch: BWF0962 QC Source Sample: 22F0972-0I
Date Analyzed: 06/20/2022
110 4.96 80 -120 20 2.0 0.88 1.00 0.10 1.00
Batch: BWF1034 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/2 l /2022
104 1.04 80 -120 20 1.9 0.87 1.00 0.10 1.00
Batch: BWF1034 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/21/2022
110 2.29 80 -120 20 2.4 1.3 1.00 0.10 1.00
QC Report for Work Order (WO) -22F0972
Analyte %Rec RPO Limits RPO Max Result Source Cone SpkValue MRL OF
Blank -EPA 8260D /5030A
QC Sample ID: BWF0727-BLK1 Batch: BWF0727
Date Prepared: 06/14/2022 Date Analyzed: 06/14/2022
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: BWF0873-BLK1 Batch: BWF0873
Date Prepared: 06/17/2022 Date Analyzed: 06/17/2022
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 8260D /5030A
QC Sample ID: BWF0727-BS1 Batch: BWF0727
Date Prepared: 06/14/2022 Date Analyzed: 06/14/2022
Carbon Tetrachloride 101 70 -130 10.1 10.0 1.0 1.00
Chloroform 92.1 70 -130 9.21 10.0 1.0 1.00
Chloromethane 81.4 70 -130 8.14 10.0 1.0 1.00
Methylene Chloride 86.9 70 -130 8.69 10.0 1.0 1.00
QC Sample ID: BWF0873-BS1 Batch: BWF0873
Date Prepared: 06/16/2022 Date Analyzed: 06/16/2022
Carbon Tetrachloride 109 70 -130 10.9 10.0 1.0 1.00
Chloroform 107 70 -130 10.7 10.0 1.0 1.00
Chloromethane 96.1 70 -130 9.61 10.0 1.0 1.00
Methylene Chloride 108 70 -130 10.8 10.0 1.0 1.00
Matrix Spike -EPA 8260D /5030A
QC Sample ID: BWF0727-MSI Batch: BWF0727 QC Source Sample: 22F0972-01
Date Prepared : 06/14/2022 Date Analyzed: 06/14/2022
Carbon Tetrachloride 94.6 70 -130 47.3 ND 50.0 5.0 1.00
Chloroform 90.3 70 -130 45.2 ND 50.0 5.0 1.00
Chloromethane 75.5 70 -130 37.8 ND 50.0 5.0 1.00
Methylene Chloride 85.6 70 -130 42.8 ND 50.0 5.0 1.00
QC Sample ID: BWF0873-MS1 Batch: BWF0873 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/17/2022 Date Analyzed: 06/17/2022
Carbon Tetrachloride 76.7 70 -130 192 ND 250 25.0 1.00
Chloroform -255 70 -130 608 1250 250 25.0 1.00
MS-High -Estimated high due to Matrix Spike recovery.
Chloromethane 62.1 70 -130 155 ND 250 25.0 1.00
MS-Low -Estimated low due to Matrix Spike recovery.
Methylene Chloride 84.1 70 -130 210 ND 250 25.0 1.00
Matrix Spike Dup -EPA 8260D /5030A
QC Sample ID: BWF0727-MSD1 Batch: BWF0727 QC Source Sample: 22F0972-01
Date Prepared: 06/14/2022 Date Analyzed: 06/14/2022
Carbon Tetrachloride 90.0 4.98 70 -130 20 45.0 ND 50.0 5.0 1.00
Chloroform 88.8 1.68 70-130 20 44.4 ND 50.0 5.0 1.00
Chloromethane 77.3 2.36 70-130 20 38.6 ND 50.0 5.0 1.00
Methylene Chloride 82.9 3.20 70 -130 20 41.4 ND 50.0 5.0 1.00
QC Sample ID: BWF0873-MSD1 Batch: BWF0873 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/17/2022 Date Analyzed: 06/17/2022
CtF WO#: 22F0972
www.ChemtechFord.com
QC Report for Work Order (WO) -22F0972
Analyte % Rec RPD Limits RPDMax Result Source Cone
Matrix Spike Dup -EPA 8260D /5030A (cont.)
QC Sample ID: BWF0873-MSD1 Batch: BWF0873 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/17/2022 Date Analyzed: 06/17/2022
Carbon Tetrachloride 93.6 19.8 70 -130 20 234 ND
Chloroform -85.4 -99.7 70 -130 20 1030 1250
MS-High -Estimated high due to Matrix Spike recovery.
Chloromethane
Methylene Chloride
CtF WO#: 22F0972
www.ChemtechFord.com
73.8 17.2
96.9 14.1
70 -130 20 184 ND
70 -130 20 242 ND
SpkValue MRL DF
250 25.0 1.00
250 25.0 1.00
250 25.0 1.00
250 25.0 1.00
Surrogates Report for Work Order (WO) -22F0972
QC ID Analyte
BVVF0727-BLK1 1,2-Dichloroethane-d4
BVVF0727-BLK1 4-Bromofluorobenzene
BWF0727-BLK1 Toluene-dB
BWF0873-BLK1 1,2-Dichloroethane-d4
BWF0873-BLK1 4-Bromofluorobenzene
BVVF0873-BLK1 Toluene-dB
BWF0727-BS1 1,2-Dichloroethane-d4
BWF0727-BS1 4-Bromofluorobenzene
BWF0727-BS1 Toluene-dB
BWF0873-BS1 1,2-Dichloroethane-d4
BWF0873-BS1 4-Bromofluorobenzene
BWF0873-BS1 Toluene-dB
BWF0727-MS1 1,2-Dichloroethane-d4
BWF0727-MS1 4-Bromofluorobenzene
BWF0727-MS1 Toluene-dB
BWF0873-MS1 1,2-Dichloroethane-d4
BWF0873-MS1 4-Bromofluorobenzene
BWF0873-MS1 Toluene-dB
BWF0727-MSD1 1,2-Dichloroethane-d4
BWF0727-MSD1 4-Bromofluorobenzene
BWF0727-MSD1 Toluene-dB
BWF0873-MSD1 1,2-Dichloroethane-d4
BWF0873-MSD1 4-Bromofluorobenzene
BWF0873-MSD1 Toluene-dB
CtF WO#: 22F0972
www.ChemtechFord.com
% Rec LCL UCL Result
Blank -EPA 8260D /5030A
93.3 64.2 126 9.33
103 71 .4 122 10.3
95.9 63.2 129 9.59
88.1 64.2 126 8.81
89.1 71.4 122 8.91
100 63.2 129 10.0
LCS -EPA 8260D /5030A
95.1 64.2 126 9.51
96.9 71.4 122 9.69
100 63.2 129 10.0
92.6 64.2 126 9.26
90.6 71.4 122 9.06
100 63.2 129 10.0
Matrix Spike -EPA 8260D /5030A
99.1 64.2 126 49.6
97.5 71.4 122 48.8
101 63.2 129 50.3
87.9 64.2 126 220
88.2 71.4 122 220
96.9 63.2 129 242
Matrix Spike Dup -EPA 8260D /5030A
96.0 64.2 126 48.0
97.5 71.4 122 48.8
99.0 63.2 129 49.5
88.2 64.2 126 220
89.4 71.4 122 224
100 63.2 129 250
Spk Value Batch DF
10.0 BWF0727 1.00
10.0 BWF0727 1.00
10.0 BWF0727 1.00
10.0 BWF0873 1.00
10.0 BWF0873 1.00
10.0 BWF0873 1.00
10.0 BWF0727 1.00
10.0 BWF0727 1.00
10.0 BWF0727 1.00
10.0 BWF0873 1.00
10.0 BWF0873 1.00
10.0 BWF0873 1.00
50.0 BWF0727 1.00
50.0 BWF0727 1.00
50.0 BWF0727 1.00
250 BWF0873 1.00
250 BWF0873 1.00
250 BWF0873 1.00
50.0 BWF0727 1.00
50.0 BWF0727 1.00
50.0 BWF0727 1.00
250 BWF0873 1.00
250 BWF0873 1.00
250 BWF0873 1.00
Surrogate Recoveries (Field Samples)
LabNumber Analyte
8260 Low Level Volatiles
22F0972-01 1,2-Dichloroethane-d4
22F0972-01 4-Bromofluorobenzene
22F0972-01 Toluene-dB
8260 Low Level Volatiles
22F0972-02 1,2-Dichloroethane-d4
22F0972-02
22F0972-02
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22F0972-03 Toluene-dB
22F0972-03
22F0972-03
4-Bromofluorobenzene
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22F0972-04 1,2-Dichloroethane-d4
22F0972-04
22F0972-04
Toluene-dB
4-Bromofluorobenzene
8260 Low Level Volatiles
22F0972-05 Toluene-dB
22F0972-05
22F0972-05
4-Bromofluorobenzene
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22F0972-06 Toluene-dB
22F0972-06
22F0972-06
1,2-Dichloroethane-d4
4-Bromofluorobenzene
8260 Low Level Volatiles
22F0972-07 Toluene-dB
22F0972-07
22F0972-07
4-Bromofluorobenzene
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22F0972-08 1,2-Dichloroethane-d4
22F0972-08 4-Bromofluorobenzene
CtF WO#: 22F0972
www.ChemtechFord.com
Result
9.25
10.5
10.0
9.16
10.3
9.61
9.87
10.5
9.13
9.23
9.61
10.2
9.68
10.7
9.37
9.70
9.23
10.3
9.72
10.3
9.47
9.30
10.2
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
92.5
105
100
91 .6
103
96.1
98.7
105
91 .3
92.3
96.1
102
96.8
107
93.7
97.0
92.3
103
97.2
103
94.7
93.0
102
LCL UCL Qualifier
64.2 126
71.4 122
63.2 129
64.2 126
71.4 122
63.2 129
63.2 129
71.4 122
64.2 126
64.2 126
63.2 129
71.4 122
63.2 129
71.4 122
64.2 126
63 .2 129
64.2 126
71.4 122
63.2 129
71.4 122
64 .2 126
64.2 126
71.4 122
22F0972-0B Toluene-dB
8260 Low Level Volatiles
22F0972-09 Toluene-dB
22F0972-09
22F0972-09
4-Bromofluorobenzene
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22F0972-10 1,2-Dichloroethane-d4
22F0972-10
22F0972-10
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22F0972-11 4-Bromofluorobenzene
22F0972-11
22F0972-11
1,2-Dichloroethane-d4
Toluene-dB
8260 Low Level Volatiles
22F0972-12 Toluene-dB
22F0972-12
22F0972-12
1,2-Dichloroethane-d4
4-Bromofluorobenzene
8260 Low Level Volatiles
22F0972-13 1,2-Dichloroethane-d4
22F0972-13
22F0972-13
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22F0972-14 1,2-Dichloroethane-d4
22F0972-14
22F0972-14
Toluene-dB
4-Bromofluorobenzene
8260 Low Level Volatiles
22F0972-15 1,2-Dichloroethane-d4
22F0972-15
22F0972-15
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22F0972-16 4-Bromofluorobenzene
22F0972-16
22F0972-16
1,2-Dichloroethane-d4
Toluene-dB
CtF WO#: 22F0972
www.ChemtechFord.com
10.0
10.0
9.95
9.26
9.31
10.1
10.0
9.93
9.40
9.77
10.0
9.12
10.2
9.23
10.2
10.0
9.26
10.0
10.2
9.10
9.95
10.0
8.77
8.45
9.63
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
100
99.5
92.6
93.1
101
100
99.3
94.0
97.7
100
91 .2
102
92.3
102
100
92.6
100
102
91.0
99.5
100
87.7
84.5
96.3
63.2 129
63.2 129
71.4 122
64.2 126
64.2 126
71.4 122
63.2 129
71.4 122
64.2 126
63.2 129
63.2 129
64.2 126
71.4 122
64.2 126
71.4 122
63.2 129
64.2 126
63.2 129
71.4 122
64.2 126
71.4 122
63.2 129
71.4 122
64.2 126
63.2 129
8260 Low Level Volatiles
22F0972-17 Toluene-dB
22F0972-17
22F0972-17
1,2-Dichloroethane-d4
4-Bromofluorobenzene
CtF WO#: 22F0972
www.ChemtechFord.com
10.0
8.40
8.88
10.0
10.0
10.0
100
84.0
88 .8
63.2 129
64.2 126
71.4 122
9632 South 500 West
CHEMTECH-FORD
LABORATORIES
6/29/2022
Work Order: 22F1630
Project: 2nd 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 were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case 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 lntermountain West since 1953
www.ChemtechFord.com
CHEMTECH-FORO
LABO~ATORl!:S
Energy Fuels Resources, Inc.
Project: 2nd Quarter Chloroform 2022
Project Manager: Tanner Holliday
Laboratory ID
22F1630-01
22F1630-02
22F1630-03
22F1630-04
22F1630-05
22F1630-06
22F1630-07
22F1630-08
22F1630-09
22F1630-10
22F1630-11
22F1630-12
22F1630-13
22F1630-14
22F1630-15
22F1630-16
22F1630-17
22F1630-18
22F1630-19
22F1630-20
22F1630-21
22F1630-22
Sample Name
TW4-03R_06142022
TW4-03_06152022
TV\/4-42_06152022
TV\/4-12_06152022
TV\/4-28_06152022
TV\/4-32_06152022
TV\/4-13_06152022
TV\/4-36_06152022
TV\/4-65_06152022
TV\/4-14_06162022
TW4-31_06162022
TV\/4-43_06162022
TW4-34_06162022
TW4-35_06162022
TW4-23_06162022
TV\/4-38_06162022
T\/\/4-06 _ 06162022
TV\/4-27_06162022
TV\/4-05_06162022
TV\/4-08_06162022
TV\/4-70_06162022
Trip Blank
Work Order Report Narrative
Sample Preparation
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.
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.
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
CtF \/VO#: 22F1630
I
CHEMTECH·FORD LA80RATOIIIES
C hemtech-F ord 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 detected at the corresponding Minimum Reporting Limit (MRL).
PO#:
Receipt: 6/17/22 11 :30@ 0.3 °C
Date Reported: 6/29/2022
Project Name: 2nd Quarter Chloroform 2022
I mg/L = one milligram per liter or I mg/kg = one milligram per kilogram = I part per million.
I ug/L = one microgram per liter or I ug/kg = one microgram per kilogram = I part per billion.
I ng/L = one nanogram per liter or I ng/kg = one nanogram per kilogram = I part per trill ion.
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
CtF WO#: 22F1630
Page 25 of 35
American West
Analytical Laboratories
463 W. 3600 S. Salt Lake City. UT 84115
Phone# [phone] Tofl Free# [phone]
1
Addruss: 6425 8. Hwy. 191
Blanding, UT 84511
Contact: Tanner Holliday
Phone#: [phone] Cell#:
Email: tllollida:,@eners.,faela.c,om; KWela~er&Jfaela.-
Project Name: 2nd Quarter Chloroform 2022
Project#:
2..F/ ~= Tanner Holliday
(I o-r-2) Samole ID:
Date
Samoled
I TW~R_06142022< 6/14/2022
~ i.-w4-03_06162022 6/15/2022
I TW4-42_061152022 6/15/2022
TW4-12_061152022 6/15/2022
: TW4-28_06152022 6/15/2022
~ TW4-32_06152022 6/16/:1022
' TW4-13_06152022 6/15/2022
I TW4-36_06152022 6/15/:1022
I TW4-65 06152022 6/15/2022
o TW4-14_06162022 6/16/2022
1 TW4-31_06162022 6/16/2022
2 TW4-43_06162022 6/16/2022
3 TW4-34_0616:Z02:Z 6/16/2022
...,,,,,__ by: 4, 11.J I · L ate:
-... -ttil.lllW' .. 11/17 .._, r'"* ll~ >rinl Name: T_.......,_
.... inqu!olhal! bf: Dair. --~ 111ne:
Prtd.Nw,\e:
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Ttme: --by: Dalo: -~ Time: ...... _
nme
SamnlAtf
820
645
700
714
723
73:Z
740
748
700
655
705
713
7:Zl
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),
V I ..... __
R-t,y: -
CM,,,tName:
Received by: ----RacaiYed by:
1-... --
I
CHAIN OF CUSTODY
All analysis will be a>nductod using NELAP aca-oditod methods .-.I all data will be n,po,1od using AWAL's slandanl analyto 11818 .-.I roporllng
11m/1a (POL) ...iess apedflcaly ~-...... on !his Chain or C<.lllody aid/or --atlon
QC Laval: I Tum Around Time: I U-oU1ar am,ngen,ents have beM1 m-.
3 Standard --~,--.,m~· the day they are due.
X Include EDD:
LOCUS UPLOAD
EXCEL
Field Filtered For:
For Campllance With:
D NELAP
D RCRA
D CWA
D SOWA
D ELAP/A2LA
o' D NUAP <'i' c:i D Non-Compliance :;j 0 G' D Other: "l r! l:l.. .. 0 .. )( 0 IO C :5 l'l :! .. i 0 ; ::!! 0 Known Hazards C lt) 8 .. ...... :?. • Q. N u & '5 E 0 u g .. Samole Comments .. <I) I:
5 w X X X M. CJ /Yv,.c.D
5 w X X X '
5 w X X X
5 w X X X
5 w X X X
5 w X X X
5 w X X X
5 w X X X
5 w X X X
5 w X X X
5 w X X X
5 w X X X
5 w X X X
1() , A o· h.on.Jf,t1} 1, ) ""'"' (a \ \ 1\ 22-Special Instructions:
"'"PV\ \~(.' }-SY,: I I If Y'\ um« '11 :1::SD
AWAL Lab Sample Sat#
Page 1 of 2
Due Date:
L.aboratDry Use Only
is-,,.,... w .. ,
·~ 2 a.lied
3 Tornpo,a,n "C
4 R-.«IB--~
(lm.,._iy-)
y N
5 Propaty-od
y N
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y N
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y N
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1 -on O...Pact.ge
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2 -.. on Otar Pact.ge y N NA
3 -onSample
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4 lJnbn>l<en on Sample
y N NA
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y N
. use: See the Analytical Scope of Work for Reporting Limits and voe
analyte list.
Twne:
01118:
Time:
µma:
rnme:
American West
Analytical Laboratories
463 W. 3600 S. Salt Lake City, UT 84115
Phone# (801) 263-a686 Toll Free# [phone] ~ Fax# (801)~7 Emal awal@awa~abs.com
www.awal-labs.com
Client: Energy Faela Reaources, Inc.
Address: 6425 S. Hwy. 191
Blancllng, UT 84511
Contact: Tanner Holliday
Phone#; (4351678-2221 Cell#;
Email: tholHda:,@eDerafaela.com; [e-mail]
Project Name: 2nd Quarter Chloroform 2022
Project#:
PO#:
Sampler Name: Tanner Holliday
(2or2) zZF!l£i7D Date
Sample ID: Samn!M
1 TW~_06162022 ' 6/16/2022
, TW4-23_06162022 6/16/2022
I TW4-38_06162022 6/16/2022
r TW4-06_06162022 6/16/2022
I TW4-27_06162022 6/16/2022
I TW4-06_06162022 6/16/2022
l TW4-08_06162022 6/16/2022
1 TW4-70_06162022 6/16/2022
! TRIP BLARK 6/14/2022
!
I
5
I
by: ,::::l 14. /I /A '89: ---~<.. f·p~ .. 8117 ,, fnme: f J 'Z.J'i CMNName: T-Hol'"'-
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I
Time
SamnlP.d
734
743
766
806
816
827
834
766
820
~eceivad by: ,.,_
CHAIN OF CUSTODY
All ....iyas wlll be ex>nducted using NELAP IJCCNldijed m-and all data wlll be reported uang AWM.'o olandartl analyte llsls and n,porting
limlta (PQL) unleeo specifically ~ad olhelwlse on thio Chain of Custody and/or attacllad documenlation.
QC Laval: II Tum Around Time: I u--~---...-.
3 Standard --••-••m~• the day they ... due.
X Include EDD:
LOCUS UPLOAD
&XCICL
Field Filtered For.
For Compliance With:
D NELAP
D RCRA
D CWA
D SOWA
D ELAP/A21A
c' D Nll.AP ~ ci D Non-<:ompliance ~ 0 u' D Other. <')
r! ~ ... 0 ~ )( 0 IC ·c: t') I ! 0 0 <'I 0 ~ Known Hazards ., • II) ..... ~ • u a. C'I 0 & 'o E Ii 6 g .. SamnlA Comments .. UI
5 w X X X
5 w X X X
5 w X X X
5 w X X X
5 w X X X
5 w X X X
5 w X X X
s w X X X
3 w X
'0 .A.A 1-~G C'lf'j,a at ' .,..: (Q 1,1 z..-z... Special Instructions: ~
...... Nane, • T°:)f>Y\ \.'SP \:""S'C"l _LUh nme: I ·.~O
AWAl Lab Sample Set#
Page 2 of 2 r~· ... I
L.abora1oly Use Only
~w .. , I~~ 2-~
3 T"""'"""'" Q..l·c
4 -ad Brokenll.ealdng
(Im~ 5eoled)
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2 I.Jrmmk .. on O..w Pac:kage
y N NA
3 -onSample
y N NA
4 Unbroken on Sanple
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-Sample
~ -coc Record? y N
Received by: ume: See the Analytical Scope of Work for Reporting Lim.its and voe --analyte list.
Tlme:
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Received by: "'°' 1--
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Work Order# 'J.. 7---F \ lo2:£>
Delivery Method:
D UPS
D l)d
m'wa
Sample#
-0\
-02-04
-c:>~
-6\t,
-0-1-0~
-og
-\0
-\\
D USPS
hemtech c:our1er
Courier
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CHEMTECH FORD LABORATORIES
Sample Receipt
Receiving Temperature <() .3 °C
. "p " -i .. ; .. · ..I • l:·
~ .. .
.: .-' ~-;I' -. l .' ' ·. • 1,
Comments
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LABORATORIE:5
Sample Condition
(check If ye.s J
~stodv Seals
~ntainers Intact
~c can be matched to bottles
~ceived on Ice
~rrect Containers(s)
~fficent Sample Volume
D Headspace Present IVOC)
D Temperature Blank
~d within Holding Tome
Plastic Containers
A· PJ;isti< Unpreserved
8-Miscellaneous Plastic
C-Cyanide Qt (NaOH)
E-Colilorm/Ecoli/HPC
F--Sulfide Qt (Zn Acetate)
L-Mercury 1631
M• Metals Pint IHN03)
N• Nutrient Pint (H2S04)
R· Radiological (HN03)
5. Sludge Cups/Tubs
Q• Plastic B.ac
Glass Containers
D· 625 (Na2S203)
G· Glass Unpreserved
H-HAAs (NH4CI)
I-508/515/52S (Na2503)
K-515.3 Herbicides
0-Oil & Grease (HCI)
P-Phenols (H2S04)
T-TOC/TOX (H3P04)
U· 531 (MCAA, Na2S203)
V-524/THMs !Ascorbic Acid)
w-8260 voe 11:1 HCI)
X-Vial Unpreserved
V-624/504 (Na2S203)
z-Miscellaneous Glass
WorkOrder# 2-~\lo~D
Delivery Method:
D UPS D USPS
~x o Lnemtecn courier
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!
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CHEMTECH FORD LABORATORIES
Sample Receipt
Receiving Temperature O 1 "') °C
--" ---· ~ _.__ ... ... -., l
~ -l •••
Comments
t (' \ ,~..C
f· ti' .h -
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CHEMTECH-FORD
L,\B O RATORIES
Sample Condition
(check If yes)
~stody Seals
0"'containers Intact
1
.~C can be malched 10 boltles
~eceived on Ice
~rrect Containers(s)
~cent Sample Volume
D Headspace Present (VOC)
0 Temperature Blank
l~oceived within Holding Time
Plastic Containers
A· Plan~ Unpre.i..en,,ed
&, Miscellaneous Plastic
C• Cyanide Qt (NaOH)
E• Coliform/Ecoli/HPC
f. Sulfide Qt (Zn Acetate)
l· Mercury 1631
M-Metals Pint (HN03)
N-Nutrient Pint (H2504)
R-Radiological (HN03)
5-Sludge Cups/Tubs
Q-Plasticllag
Glass Containers
D· 625 (Na25203)
G-Glass Unpreserved
H-HAAs (NH4CI)
I· 508/515/525 (Na2503)
I<· 515.3 Herbicides
O· Oil & Grease (HCI)
P-Phenols (H2504)
T-TOC/TOX (H3P04)
U· 531 (MCAA, Na25203)
V-524/THMs (Ascorbic Acid)
w. 8260 voe(!:! HCI)
X· Vial Unpreserved
V-624/504 (Na25203)
z. Miscellaneous Glass
Analyte
QC Sample ID: BWF1256-BLK1
Date Prepared: 06/23/2022
Chloride
QC Sample ID: BWFl268-BLK1
Date Prepared: 06/23/2022
Chloride
QC Sample ID: BWF1256-BS1
Date Prepared: 06/23/2022
Chloride
QC Sample ID: BWF1268-BS1
Date Prepared: 06/23/2022
Chloride
QC Sample ID: BWF1256-MS1
Date Prepared: 06/23/2022
Chloride
QC Sample ID: BWF1256-MS2
Date Prepared: 06/23/2022
Chloride
QC Sample ID: BWF1268-MS1
Date Prepared: 06/23/2022
Chloride
QC Sample ID: BWF1268-MS2
Date Prepared: 06/23/2022
Chloride
QC Sample ID: BWF1256-MSDl
Date Prepared: 06/23/2022
Chloride
QC Sample ID: BWFI256-MSD2
Date Prepared: 06/23/2022
Chloride
QC Sample ID: BWF1268-MSD1
Date Prepared: 06/23/2022
Chloride
QC Sample ID: BWFl268-MSD2
Date Prepared: 06/23/2022
Chloride
CtF WO#: 22F1630
www.ChemtechFord.com
QC Report for Work Order (WO) -22F1630
%Rec RPO Limits RPD Max Result Source Cone Spk Value MRL DF
Blank -EPA 300.0
Batch: BWF1256
Date Analyzed: 06/24/2022
ND 1.0 1.00
Batch: BWF1268
Date Analyzed: 06/24/2022
ND 1.0 1.00
LCS -EPA 300.0
Batch: BWF1256
Date Analyzed: 06/24/2022
98.8 90 -110 49.4 50.0 1.0 1.00
Batch: BWF1268
Date Analyzed: 06/24/2022
99.2 90 -110 49.6 50.0 1.0 1.00
Matrix Spike -EPA 300.0
Batch: BWF1256 QC Source Sample: 22Fl630-01
Date Analyzed: 06/24/2022
95.0 80 -120 10.6 ND 11.1 1.1 1.00
Batch: BWF1256 QC Source Sample: 22Fl630-02
Date Analyzed: 06/24/2022
101 80 -120 37.9 26.7 11.1 1.1 1.00
Batch: BWF1268 QC Source Sample: 22Fl630-19
Date Analyzed: 06/24/2022
96.6 80 -120 51.4 40.7 11.1 1.1 1.00
Batch: BWFI268 QC Source Sample: 22Fl630-20
Date Analyzed: 06/24/2022
102 80 -120 64.2 52.8 11.1 1.1 1.00
Matrix Spike Dup -EPA 300.0
Batch: BWF1256 QC Source Sample: 22Fl630-0l
Date Analyzed: 06/24/2022
97.3 2.30 80 -120 20 10.8 ND 11.1 1.1 1.00
Batch: BWFI256 QC Source Sample: 22FI630-02
Date Analyzed: 06/24/2022
103 0.381 80 -120 20 38.1 26.7 11.1 1.1 1.00
Batch: BWFI268 QC Source Sample: 22Fl630-19
Date Analyzed: 06/24/2022
97.3 0.160 80-120 20 51 .5 40.7 11 .1 1.1 1.00
Batch: BWFI268 QC Source Sample: 22F1630-20
Date Analyzed: 06/24/2022
101 0.189 80 -120 20 64.1 52.8 11.1 1.1 1.00
QC Report for Work Order (WO) -22F1630
Analyte % Rec RPO Limits RPO Max Result Source Cone Spk Value MRL OF
Blank -EPA 353.2
QC Sample ID: BWF1034-BLK1 Batch: BWF1034
Date Prepared: 06/21/2022 Date Analyzed: 06/21/2022
Nitrate+ Nitrite, Total, as N ND 0.10 1.00
QC Sample ID: BWF1035-BLK1 Batch: BWF1035
Date Prepared: 06/21/2022 Date Analyzed: 06/21/2022
Nitrate+ Nitrite, Total, as N ND 0.10 1.00
QC Sample ID: BWF1362-BLKI Batch: BWF1362
Date Prepared: 06/27/2022 Date Analyzed: 06/27/2022
Nitrate+ Nitrite, Total, as N ND 0.10 1.00
LCS -EPA 353.2
QC Sample ID: BWF1034-BSI Batch: BWF1034
Date Prepared: 06/21/2022 Date Analyzed: 06/21/2022
Nitrate+ Nitrite, Total, as N 99.4 80 -120 2.0 2.00 0.10 1.00
QC Sample ID: BWF1035-BS1 Batch: BWF1035
Date Prepared: 06/21/2022 Date Analyzed: 06/21/2022
Nitrate+ Nitrite, Total, as N 104 80 -120 2.1 2.00 0.10 1.00
QC Sample ID: BWF1362-BS1 Batch: BWF1362
Date Prepared: 06/27/2022 Date Analyzed: 06/27/2022
Nitrate + Nitrite, Total, as N 101 80 -120 2.0 2.00 0.10 1.00
Matrix Spike -EPA 353.2
QC Sample ID: BWF1034-MS1 Batch: BWF1034 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/21/2022 Date Analyzed: 06/21/2022
Nitrate+ Nitrite, Total, as N 106 80 -120 1.9 0.87 1.00 0.10 1.00
QC Sample ID: BWF1034-MS2 Batch: BWF1034 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/21/2022 Date Analyzed: 06/21/2022
Nitrate + Nitrite, Total, as N 115 80 -120 2.4 1.3 1.00 0.10 1.00
QC Sample ID: BWF1035-MS1 Batch: BWF1035 QC Source Sample: 22F1630-02
Date Prepared: 06/21/2022 Date Analyzed: 06/21/2022
Nitrate+ Nitrite, Total, as N 120 80 -120 7.0 5.8 1.00 0.20 2.00
QC Sample ID: BWF1035-MS2 Batch: BWF1035 QC Source Sample: 22F1630-12
Date Prepared: 06/21/2022 Date Analyzed: 06/21/2022
Nitrate+ Nitrite, Total, as N 118 80 -120 1.4 0.24 1.00 0.10 1.00
QC Sample ID: BWF1362-MS1 Batch: BWF1362 QC Source Sample: 22F 1630-15
Date Prepared: 06/27/2022 Date Analyzed: 06/27/2022
Nitrate+ Nitrite, Total, as N 98.2 80 -120 1.1 0.10 1.00 0.10 1.00
QC Sample ID: BWF1362-MS2 Batch: BWF1362 QC Source Sample: 22F1630-16
Date Prepared: 06/27/2022 Date Analyzed: 06/27/2022
Nitrate+ Nitrite, Total, as N 105 80 -120 9.0 7.9 1.00 0.50 5.00
Matrix Spike Dup -EPA 353.2
QC Sample ID: BWF1034-MSD1 Batch: BWF1034 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/21/2022 Date Analyzed: 06/21/2022
Nitrate + Nitrite, Total, as N 104 1.04 80 -120 20 1.9 0.87 1.00 0.10 1.00
QC Sample ID: BWF1034-MSD2 Batch: BWF1034 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/21/2022 Date Analyzed: 06/21/2022
Nitrate+ Nitrite, Total, as N 110 2.29 80 -120 20 2.4 1.3 1.00 0.10 1.00
CtF WO#: 22F1630
www.ChemtechFord.com
Analyte
QC Sample ID: BWF1035-MSDI
Date Prepared: 06/21/2022
Nitrate + Nitrite, Total, as N
QC Sample ID: BWFI035-MSD2
Date Prepared: 06/21/2022
Nitrate+ Nitrite, Total, as N
QC Sample ID: BWFl362-MSD1
Date Prepared: 06/27/2022
Nitrate+ Nitrite, Total, as N
QC Sample ID: BWF1362-MSD2
Date Prepared: 06/27/2022
Nitrate + Nitrite, Total, as N
CtF WO#: 22F1630
www.ChemtechFord.com
QC Report for Work Order (WO) -22F1630
%Rec RPD Limits RPD Max Result Source Cone
Matrix Spike Dup -EPA 353.2 (cont.)
Batch: BWF1035 QC Source Sample: 22Fl630-02
Date Analyzed: 06/2 1/2022
114 0.956 80 -120 20 7.0 5.8
Batch: BWFI035 QC Source Sample: 22F1630-12
Date Analyzed: 06/21/2022
101 12.5 80 -120 20 1.3 0.24
Batch: BWFl362 QC Source Sample: 22Fl630-15
Date Analyzed: 06/27/2022
98.7 0.461 80-120 20 1.1 0.10
Batch: BWF1362 QC Source Sample: 22Fl630-16
Date Analyzed: 06/27/2022
105 0.0334 80 -120 20 9.0 7.9
SpkValue MRL DF
1.00 0.20 2.00
1.00 0.10 1.00
1.00 0.10 1.00
1.00 0.50 5.00
QC Report for Work Order (WO) -22F1630
Analyte % Rec RPO Limits RPO Max Result Source Cone Spk Value MRL DF
Blank -EPA 8260D /5030A
QC Sample ID: BWFl202-BLK1 Batch: BWFl202
Date Prepared: 06/23/2022 Date Analyzed: 06/23/2022
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: BWFl279-BLK1 Batch: BWFl279
Date Prepared: 06/23/2022 Date Analyzed: 06/23/2022
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: BWF1345-BLKI Batch: BWF1345
Date Prepared: 06/25/2022 Date Analyzed: 06/25/2022
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 8260D /5030A
QC Sample ID: BWFl202-BSI Batch: BWFl202
Date Prepared: 06/22/2022 Date Analyzed: 06/22/2022
Carbon Tetrachloride 98.8 70 -130 9.88 10.0 1.0 1.00
Chloroform 97.2 70 -130 9.72 10.0 1.0 1.00
Chloromethane 125 70 -130 12.5 10.0 1.0 1.00
Methylene Chloride 93.0 70 -130 9.30 10.0 1.0 1.00
QC Sample ID: BWFl279-BSI Batch: BWF1279
Date Prepared: 06/23/2022 Date Analyzed: 06/23/2022
Carbon Tetrachloride 98.5 70 -130 9.85 10.0 1.0 1.00
Chloroform 94.7 70 -130 9.47 10.0 1.0 1.00
Chloromethane 116 70 -130 11.6 10.0 1.0 1.00
Methylene Chloride 90.7 70 -130 9.07 10.0 1.0 1.00
QC Sample ID: BWF1345-BSI Batch: BWF1345
Date Prepared: 06/24/2022 Date Analyzed: 06/24/2022
Carbon Tetrachloride 105 70 -130 10.5 10.0 1.0 1.00
Chloroform 105 70 -130 10.5 10.0 1.0 1.00
Chloromethane 165 70 -130 16.5 10.0 1.0 1.00
HB -Recovery for this parameter exceeded the upper acceptance limit. Associated sample(s) were all non-detect and therefore
accepted and reported for this parameter.
Methylene Chloride 115 70 -130 11.5 10.0 1.0 1.00
Matrix Spike -EPA 8260D /5030A
QC Sample ID: BWFl202-MSI Batch: BWFl202 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/22/2022 Date Analyzed: 06/22/2022
Carbon Tetrachloride 100 70 -130 50.0 ND 50.0 5.0 1.00
Chloroform 94.0 70 -130 47.0 ND 50.0 5.0 1.00
Chloromethane 110 70 -130 55.2 ND 50.0 5.0 1.00
Methylene Chloride 89.3 70-130 44.6 ND 50.0 5.0 1.00
QC Sample ID: BWFl279-MSI Batch: BWFl279 QC Source Sample: 22Fl 630-02
Date Prepared: 06/23/2022 Date Analyzed: 06/23/2022
Carbon Tetrachloride 95.8 70 -130 47.9 ND 50.0 5.0 1.00
CtF WO#: 22F1630
www.ChemtechFord.com
QC Report for Work Order (WO) -22F1630
Analyte % Rec RPD Limits RPD Max Result Source Cone
Matrix Spike -EPA 82600 /5030A (cont.)
QC Sample ID: BWFI279-MSI Batch: BWF1279 QC Source Sample: 22Fl630-02
Date Prepared: 06/23/2022 Date Analyzed: 06/23/2022
Chloroform 88.2 70 -130 44.1 ND
Chloromethane 101 70 -130 50.5 ND
Methylene Chloride 85.0 70 -130 42.5 ND
QC Sample ID: BWFl345-MSI Batch: BWF1345 QC Source Sample: 22Fl630-15
Date Prepared: 06/24/2022 Date Analyzed: 06/24/2022
Carbon Tetrachloride 94.4 70 -130 47.2 ND
Chloroform 97.3 70 -130 48.6 ND
Chloromethane 166 70-130 83.1 ND
MS-High -Estimated high due to Matrix Spike recovery.
Methylene Chloride 106 70 -130 52.9 ND
Matrix Spike Oup -EPA 82600 /5030A
QC Sample ID: BWF1202-MSD1 Batch: BWF1202 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/22/2022 Date Analyzed: 06/22/2022
Carbon Tetrachloride 93.5 6.82 70 -130 20 46.8 ND
Chloroform 90.0 4.35 70 -130 20 45.0 ND
Chloromethane 108 2.66 70 -130 20 53.8 ND
Methylene Chloride 88.0 1.47 70-130 20 44.0 ND
QC Sample ID: BWFI279-MSDI Batch: BWFl279 QC Source Sample: 22Fl630-02
Date Prepared: 06/23/2022 Date Analyzed: 06/23/2022
Carbon Tetrachloride 88.0 8.49 70 -130 20 44.0 ND
Chloroform 91.3 3.45 70 -130 20 45.6 ND
Chloromethane 107 5.96 70 -130 20 53.6 ND
Methylene Chloride 85.6 0.703 70 -130 20 42.8 ND
QC Sample ID: BWFl345-MSDI Batch: BWF1345 QC Source Sample: 22FI630-15
Date Prepared: 06/24/2022 Date Analyzed: 06/24/2022
Carbon Tetrachloride 92.6 1.93 70 -130 20 46.3 ND
Chloroform 93.8 3.66 70 -130 20 46.9 ND
Chloromethane 164 1.52 70 -130 20 81.8 ND
MS-High -Estimated high due to Matrix Spike recovery.
Methylene Chloride
CtF WO#: 22F1630
www.ChemtechFord.com
99.1 6.54 70 -130 20 49.6 ND
Spk Value MRL DF
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
50.0 5.0 1.00
Surrogates Report for Work Order (WO) -22F1630
QCID Analyte
BWF1202-BLK1 1,2-Dichloroethane-d4
BWF1202-BLK1 4-Bromofluorobenzene
BWF1202-BLK1 Toluene-dB
BWF1279-BLK1 1,2-Dichloroethane-d4
BWF1279-BLK1 4-Bromofluorobenzene
BWF1279-BLK1 Toluene-dB
BWF1345-BLK1 1,2-Dichloroethane-d4
BWF1345-BLK1 4-Bromofluorobenzene
BWF1345-BLK1 Toluene-dB
BWF1202-BS1 1,2-Dichloroethane-d4
BWF1202-BS1 4-Bromofluorobenzene
BWF1202-BS1 Toluene-dB
BWF1279-BS1 1,2-Dichloroethane-d4
BWF1279-BS1 4-Bromofluorobenzene
BWF1279-BS1 Toluene-dB
BWF1345-BS1 1,2-Dichloroethane-d4
BWF1345-BS1 4-Bromofluorobenzene
BWF1345-BS1 Toluene-dB
BWF1202-MS1 1,2-Dichloroethane-d4
BWF1202-MS1 4-Bromofluorobenzene
BWF1202-MS1 Toluene-dB
BWF1279-MS1 1,2-Dichloroethane-d4
BWF1279-MS1 4-Bromofluorobenzene
BWF1279-MS1 Toluene-dB
BWF1345-MS1 1,2-Dichloroethane-d4
BWF1345-MS1 4-Bromofluorobenzene
BWF1345-MS1 Toluene-dB
BWF1202-MSD1 1,2-Dichloroethane-d4
BWF1202-MSD1 4-Bromofluorobenzene
BWF1202-MSD1 Toluene-dB
BWF1279-MSD1 1,2-Dichloroethane-d4
BWF1279-MSD1 4-Bromofluorobenzene
BWF1279-MSD1 Toluene-dB
BWF1345-MSD1 1,2-Dichloroethane-d4
BWF1345-MSD1 4-Bromofluorobenzene
BWF1345-MSD1 Toluene-dB
CtF WO#: 22F1630
www.ChemtechFord.com
% Rec LCL UCL Result
Blank -EPA 8260D /5030A
95.6 64.2 126 9.56
96.4 71 .4 122 9.64
97.4 63.2 129 9.74
96.3 64.2 126 9.63
94.1 71.4 122 9.41
97.6 63.2 129 9.76
119 64.2 126 11.9
93.2 71 .4 122 9.32
100 63.2 129 10.0
LCS -EPA 8260D /5030A
96.7 64.2 126 9.67
96.4 71.4 122 9.64
100 63.2 129 10.0
96.3 64.2 126 9.63
94.9 71.4 122 9.49
100 63.2 129 10.0
99.3 64.2 126 9.93
95.1 71.4 122 9.51
101 63.2 129 10.1
Matrix Spike -EPA 8260D /5030A
93.6 64.2 126 46.8
95.8 71.4 122 47.9
100 63.2 129 50.0
91 .8 64.2 126 45.9
95.3 71.4 122 47.6
100 63.2 129 50.0
101 64.2 126 50.3
93.7 71.4 122 46.8
100 63.2 129 50.1
Matrix Spike Dup -EPA 8260D /5030A
92.4 64.2 126 46.2
94.6 71.4 122 47.3
100 63.2 129 50.0
95.5 64.2 126 47.8
94.1 71.4 122 47.0
98.6 63.2 129 49.3
95.0 64.2 126 47.5
95.1 71.4 122 47.6
100 63.2 129 50.0
SpkValue Batch OF
10.0 BWF1202 1.00
10.0 BWF1202 1.00
10.0 BWF1202 1.00
10.0 BWF1279 1.00
10.0 BWF1279 1.00
10.0 BWF1279 1.00
10.0 BWF1345 1.00
10.0 BWF1345 1.00
10.0 BWF1345 1.00
10.0 BWF1202 1.00
10.0 BWF1202 1.00
10.0 BWF1202 1.00
10.0 BWF1279 1.00
10.0 BWF1279 1.00
10.0 BWF1279 1.00
10.0 BWF1345 1.00
10.0 BWF1345 1.00
10.0 BWF1345 1.00
50.0 BWF1202 1.00
50.0 BWF1202 1.00
50.0 BWF1202 1.00
50.0 BWF1279 1.00
50.0 BWF1279 1.00
50.0 BWF1279 1.00
50.0 BWF1345 1.00
50.0 BWF1345 1.00
50.0 BWF1345 1.00
50.0 BWF1202 1.00
50.0 BWF1202 1.00
50.0 BWF1202 1.00
50.0 BWF1279 1.00
50.0 BWF1279 1.00
50.0 BWF1279 1.00
50.0 BWF1345 1.00
50.0 BWF1345 1.00
50.0 BWF1345 1.00
Surrogate Recoveries (Field Samples)
LabNumber Analyte
8260 Low Level Volatiles
22F1630-01 4-Bromofluorobenzene
22F1630-01 Toluene-dB
22F1630-01 1,2-Dichloroethane-d4
8260 Low Level Volatiles
22F 1630-02 1,2-Dichloroethane-d4
22F1630-02
22F1630-02
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22F1630-03 1,2-Dichloroethane-d4
22F1630-03
22F1630-03
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22F1630-04 Toluene-dB
22F1630-04
22F1630-04
1,2-Dichloroethane-d4
4-Bromofluorobenzene
8260 Low Level Volatiles
22F1630-05 Toluene-dB
22F1630-05
22F1630-05
1,2-Dichloroethane-d4
4-Bromofluorobenzene
8260 Low Level Volatiles
22F1630-06 1,2-Dichloroethane-d4
22F1630-06
22F1630-06
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22F1630-07 Toluene-dB
22F1630-07
22F1630-07
1,2-Dichloroethane-d4
4-Bromofluorobenzene
8260 Low Level Volatiles
22F1630-08 Toluene-dB
22F1630-08 4-Bromofluorobenzene
CtF WO#: 22F1630
www.ChemtechFord.com
Result
9.49
9.91
9.28
9.06
9.43
9.81
9.03
9.40
10.0
10.0
9.27
9.28
9.83
9.33
9.45
9.28
9.20
9.86
10.0
9.53
9.49
10.0
9.40
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
94.9
99.1
92.8
90.6
94.3
98.1
90.3
94.0
100
100
92.7
92.8
98.3
93.3
94.5
92.8
92.0
98.6
100
95.3
94.9
100
94.0
LCL UCL
71.4 122
63.2 129
64.2 126
64.2 126
71.4 122
63.2 129
64.2 126
71 .4 122
63.2 129
63.2 129
64.2 126
71.4 122
63.2 129
64.2 126
71.4 122
64.2 126
71.4 122
63.2 129
63.2 129
64.2 126
71.4 122
63.2 129
71.4 122
Qualifier
22F1630-08 1,2-Dichloroethane-d4
8260 Low Level Volatiles
22F1630-09 Toluene-dB
22F1630-09
22F1630-09
1,2-Dichloroethane-d4
4-Bromofluorobenzene
8260 Low Level Volatiles
22F1630-10 Toluene-dB
22F1630-10
22F1630-10
4-Bromofluorobenzene
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22F1630-11 4-Bromofluorobenzene
22F1630-11
22F1630-11
1,2-Dichloroethane-d4
Toluene-dB
8260 Low Level Volatiles
22F1630-12 1,2-Dichloroethane-d4
22F1630-12
22F1630-12
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22 F 1630-13 Toluene-dB
22F1630-13
22F1630-13
4-Bromofluorobenzene
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22F1630-14 Toluene-dB
22F1630-14
22F1630-14
4-Bromofluorobenzene
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22F1630-15 1,2-Dichloroethane-d4
22F1630-15
22F1630-15
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22F1630-16 1,2-Dichloroethane-d4
22F1630-16
22F1630-16
Toluene-dB
4-Bromofluorobenzene
CtF WO#: 22F1630
www.ChemtechFord.com
9.11
9.83
9.14
9.38
10.0
9.34
8.99
9.22
9.30
9.82
9.15
9.27
9.86
9.73
9.34
9.24
9.73
9.47
9.31
9.36
9.41
9.93
9.46
10.0
9.19
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
91.1
98.3
91.4
93.8
100
93.4
89.9
92.2
93.0
98.2
91 .5
92.7
98.6
97.3
93.4
92.4
97.3
94.7
93.1
93.6
94.1
99.3
94.6
100
91 .9
64.2 126
63.2 129
64.2 126
71.4 122
63.2 129
71 .4 122
64.2 126
71.4 122
64.2 126
63.2 129
64.2 126
71.4 122
63.2 129
63.2 129
71.4 122
64.2 126
63.2 129
71.4 122
64.2 126
64.2 126
71.4 122
63.2 129
64.2 126
63.2 129
71.4 122
8260 Low Level Volatiles
22F1630-17 1,2-Dichloroethane-d4
22F1630-17
22F1630-17
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22F1630-18 Toluene-dB
22F1630-18
22F1630-18
4-Bromofluorobenzene
1,2-Dichloroethane-d4
8260 Low Level Volatiles
22F1630-19 Toluene-dB
22F1630-19
22F1630-19
1,2-Dichloroethane-d4
4-Bromofluorobenzene
8260 Low Level Volatiles
22F1630-20 4-Bromofluorobenzene
22F1630-20
22F1630-20
1,2-Dichloroethane-d4
Toluene-dB
8260 Low Level Volatiles
22F1630-21 1,2-Dichloroethane-d4
22F1630-21
22F1630-21
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22F1630-22 Toluene-dB
22F1630-22
22F1630-22
1,2-Dichloroethane-d4
4-Bromofluorobenzene
CtF WO#: 22F1630
www.ChemtechFord.com
9.46
9.34
9.90
9.82
9.29
9.60
10.0
9.50
9.18
9.20
9.62
10.0
9.22
9.19
9.97
10.0
9.11
9.28
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
94.6
93.4
99.0
98.2
92.9
96.0
100
95.0
91.8
92.0
96.2
100
92.2
91.9
99.7
100
91.1
92.8
64.2 126
71.4 122
63.2 129
63.2 129
71.4 122
64.2 126
63.2 129
64.2 126
71.4 122
71.4 122
64.2 126
63.2 129
64.2 126
71.4 122
63.2 129
63.2 129
64.2 126
71.4 122
9632 South 500 West
I
CHEMTECH·FORD
LA601i!ATORIES
7/11/2022
Work Order: 22F2 I 01
Pro,jcct: 2nd 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 were performed in accordance with the
National Environmental Laboratory Accreditation Program (NELAP) unless
noted in the comments, flags, or case 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 lntermountain West since 1953
www.ChemtechFord.com
CHEMTECH-FORO
LABORATORIES
Energy Fuels Resources, Inc.
Project: 2nd Quarter Chloroform 2022
Project Manager: Tanner Holliday
Laboratory ID
22F2101-01
22F2101-02
22F2101-03
22F2101-04
22F2101-05
22F2101-06
22F2101-07
22F2101-08
22F2101-09
22F2101-10
22F2101-11
22F2101 -12
Sample Name
TW4-09R_06212022
TW4-09_06222022
TW4-33_06222022
TW4-18_06222022
TW4-30_06222022
TW4-16_06222022
TW4-10_06222022
TW4-29_06222022
TW4-07_06222022
TW4-26_06222022
TW4-75_06222022
Trip Blank
Work Order Report Narrative
Sample Preparation
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.
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.
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
CtF WO#: 22F2101
I
CHEMTECH·FORD
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.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Report Footnotes
Abbreviations
Certificate of Analysis
PO#:
Receipt: 6/23/22 12:00@ 2.3 °C
Date Reported: 7/11/2022
Project Name: 2nd Quarter Chloroform 2022
ND~ Not detected at the corresponding Minimum Reporting Limit (MRL).
1 mg/L ~ one milligram per liter or I mg/kg~ one milligram per kilogram ~ I part per million.
I ug/L ~ one microgram per liter or I ug/kg ~ one microgram per kilogram ~ 1 part per billion.
1 ng/L ~ one nano gram per liter or I ng/kg ~ one nanogram per kilogram ~ I part per trill ion.
Flag Descriptions
J-LOW ~ Estimated low due to low recovery ofLCS or CCV
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,
Project Name: 2nd Quarter Chloroform 2022
www.ChemtechFord.com
CtF WO#: 22F2101
Page 15 of 23
.l,:Lf-l.fO I
American West
Analytical Laboratories
463 W. 3600 S. Salt Lake City. lJT 84115
Phone# [phone] Ton Free# [phone]
CHAIN OF CUSTODY
All analysla wll be cooductwd uang MEL.AP OOCNldlted molhods and oN dala win be ,_.tad using AWA!."s 111.andard analyto liota and n,po,ting
Wm~s (POL)......, specffical1y--ed -on 11"8 Chain of CUstody ~ attad>ed doafflentallon.
AWAJ... Lab Sample Set #
Page 1 of
L~~ Fax# [phone] Email [e-mail] QC Level: I Tum Around Time: 1· Uni ... olher arrangem«1ls havo been mme, IDue Date: '~
signed repomwll be arnailed by5:00 pm on
www.awal-labs.com 3 Standard tt,aday1hoy...,due.
Client Energy Fuels Resources, Inc. X Include EDD: Laboratory Use Only
Address: 6425 s. Hwy. 191 =UPLOAD S<lmplee Wnc
Blanding UT 84511 Field Filtered For. , 1e9><-~-
Contact: Tanner HoWday 2 A-.c"' ~
(43S) 678-2221 ForCompllanceWlth: 2 ~ Phone#: Cell#: D NELAP 3 T--• -;;7 "C
D RCRA ---
Email: tbollldal'@;-erufb.ela.com; llWem~erufb.ela.cam D CWA • Roc,oli,ed B~
Project Name: 2nd Quarter Chloroform 2022 ~ ~~~A2LA ~-'Y-lN
. -o' D NLLAP Project #: e-i O D Non-Compliance 5 Property P,-,,ed 1;i O ,-.. D Other. Y N
PO#: ~ " ~ '2 15 Checkedlll-~ :Sc, O\Q y N Sampler Name: Tanner HoWday ]! .!ll O o &l __ .;;,;;...:;.,;._.;_.;_================.=====-.====-I c ;:, II: ~ -Known Hazards e Received Within
Date Time 8 -! N° :'!. ~ & Holding Timas oEo-o v N Samole ID: Samoled Samoled .. ~ I!: u ::,. Samole Comments
TW~R_ 06212022 6/21/2022 740 s W X X X DO •oT UU FOR QC
TW~_06222022 6/22/2022 715 5 W X X X MCT-Was:
3-, TW4-33 06222022 6/22/2022 725 s w X X X 1 P,,-,tonOtnr---Y N NA
TW4-18_06222022 6/22/2022 740 5 W X X X 2 UnlwnltononOtnrP~
5 TW4-30_06222022 6/22/2022 755 5 W X X X y N NA
TW4-16_06222022 6/22/2022 806 5 W X X X 3 ~ons:ple NA
TW4-10_06222022 6/22/2022 812 5 W X X X 4 Unbn>konons.mp1e
8 TW4-29_06222022 6/22/2022 824 5 W X X X y N NA
g TW4-07_06222022 6/22/2022 834 5 W X X X e-s.mp1e
10i > TW4-26_06222022 6/22/2022 841 5 W X X X LJibols,;mCOCRomnl? N
, TW4-75_06222022 6/22/2022 740 5 W X X · X
12 ! TRIP BLA11K 6/21/2022 740 3 W X
13 I
~by.-"""'.\_~.,. ... J.J /,?· / Date: Rocolvedby: Dato: Speciallnstructions:
V Time: Tlme:
:mr. Naa,,e: T.,,,., Mnffld.u 11""" -... Name: .--
· ·-1,y: 0at,r, R..,..,edby: /.. / //, _ __...-ome: ( .... ,rrz_ ,,.,., See the Analytical Scope of Work for Reporting Limits and voe
L"""""'-1~~-, --~I"'::;::;" ' I."> I.L analyte list.
....... Name, mme, ~ Nsne, 'l r 1 r .J\ '1 1) ,...,., r7.: CI:
_,,_.-by: ll)llle: Received by: Omo:
Sianlllln lo~-~-
1 111'8: Time:
PrtnName: ~-
1,«lllnc,_ by: Oato: Rocolved by: Ollla: 1--"'~-Time: Fnme: Prird.Nane: ...... _
l\~ \~ , 9'1 "'1A'\ ~'Ji ctlo1.\ C\"\1~
Work Order# nf'2lll\
Delivery Method:
DUPS ~S
hemtech Launer f '
Courier I ~
• f j ...
i I i > E J .a .!!
;J -. . u :, I' • '' • .-Chemtech Lot# :, ~ '~. ;~ I • • "' .E 'l; I ..,
or 1l ~ .. ~ Samp1e# Container Preservative E I ~-J!.
()[ -J9'L IAJl~) 1"20-'t)
01-rl i: r'P lfAf>
Dt-l \ JJ t'Z.I {,,
i: .. 0 E ..,
~ Misc .E .., Volume I!! !: (oz/ml) ;=
CHEMTECH FORD LABORATORIES
Sample Receipt
Receiving Temperature 'l. 3 oc
,. -)-•. ~ .. '·. .
e .:_ .. .,. . "l ' . •. ' , ~-
Comments
CHEMTECH-FORD
L,\BORATOR!ES
Sample Condition
(check if yes I
kiodySeals
~ntainers Intact
~at can be matched to bottles
~ceived on Ice
~rrect Containers(s)
~ufficent Sample Volume
D Headspace Present (VOC)
D Temperature Blank
~eceived within Holding Time
Plastic Containers,
A· Plilltk Unpreserved
6--Miscellaneous Plastic
C· Cyanide Qt (NaOH)
E• Coliform/Ecoli/HPC
F-Sulfide Qt (Zn Acetate)
L• Mercury 1631
M· Metals Pint (HN03)
N· Nutrient Pint (H2S04)
R· Radiological (HN03)
S-Sludge Cups/Tubs
Q. Plastic 8"~
Glass Containers
D-625 (Na25203)
G-Glass Unpreserved
H-HAAs (NH4CI)
J-508/515/525 (Na2503)
K-515.3 Herbicides
0-Oil & Grease (HCI)
P-Phenols (H2504)
T-TOC/TOX (H3P04)
U-531 (MCAA. Na25203)
V-524/THMs (Ascorbic Acid)
W· 8260 voe (1:1 HCI)
X-Vial Unpreserved
y. 624/504 (Na25203)
Z-Miscellaneous Glass
..
Analyte
QC Sample ID: BWF1631-BLKI
Date Prepared: 06/30/2022
Chloride
QC Sample ID: BWG0045-BLKI
Date Prepared: 07/01/2022
Chloride
QC Sample ID: BWF1631-BS1
Date Prepared: 06/30/2022
Chloride
QC Sample ID: BWG0045-BS1
Date Prepared: 07/01/2022
Chloride
QC Sample ID: BWF1631-MS1
Date Prepared: 06/3 0/2022
Chloride
QC Sample ID: BWF1631-MS2
Date Prepared: 06/30/2022
Chloride
QC Sample ID: BWG0045-MS1
Date Prepared: 07/01/2022
Chloride
QC Sample ID: BWG0045-MS2
Date Prepared: 07/01/2022
Chloride
QC Sample ID: BWF163 l-MSD1
Date Prepared: 06/30/2022
Chloride
QC Sample ID: BWFl631-MSD2
Date Prepared: 06/30/2022
Chloride
QC Sample ID: BWG0045-MSD1
Date Prepared: 07/01/2022
Chloride
QC Sample ID: BWG0045-MSD2
Date Prepared: 07/01/2022
Chloride
CtF WO#: 22F2101
www.ChemtechFord.com
QC Report for Work Order (WO) -22F2101
%Rec RPO Limits RPO Max Result Source Cone Spk Value MRL DF
Blank -EPA 300.0
Batch: BWF1631
Date Analyzed: 06/30/2022
ND 1.0 1.00
Batch: BWG0045
Date Analyzed: 07/01/2022
ND 1.0 1.00
LCS -EPA 300.0
Batch: BWF1631
Date Analyzed: 06/30/2022
98.8 90 -110 49.4 50.0 1.0 1.00
Batch: BWG0045
Date Analyzed: 07 /0 I /2022
98.8 90 -110 49.4 50.0 1.0 1.00
Matrix Spike -EPA 300.0
Batch: BWF1631 QC Source Sample: XXXXXXX-XX
Date Analyzed: 07/01/2022
110 80 -120 25.8 13.6 11.1 1.1 1.00
Batch: BWF1631 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/30/2022
107 80 -120 148 41.1 100 11.0 1.00
Batch: BWG0045 QC Source Sample: 22F2 l O 1-09
Date Analyzed: 07/01/2022
95.6 80 -120 90.3 42.5 50.0 5.5 1.00
Batch: BWG0045 QC Source Sample: XXXXXXX-XX
Date Analyzed: 07/01/2022
97.9 80 -120 68.4 57.5 11.1 1.1 1.00
Matrix Spike Dup -EPA 300.0
Batch: BWFI63 l QC Source Sample: XXXXXXX-XX
Date Analyzed: 07/01/2022
104 2.80 80 -120 20 25.1 13.6 11.1 1.1 1.00
Batch: BWFI631 QC Source Sample: XXXXXXX-XX
Date Analyzed: 06/30/2022
100 4.73 80 -120 20 141 41.1 100 11.0 1.00
Batch: BWG0045 QC Source Sample: 22F2101-09
Date Analyzed: 07/01/2022
93.2 1.34 80-120 20 89.1 42.5 50.0 5.5 1.00
Batch: BWG0045 QC Source Sample: XXXXXXX-XX
Date Analyzed: 07/01/2022
100 0.385 80 -120 20 68.7 57.5 11.1 1.1 1.00
QC Report for Work Order (WO) -22F2101
Analyte %Rec RPD Limits RPD Max Result Source Cone SpkValue MRL DF
Blank -EPA 353.2
QC Sample ID: BWFl563-BLKI Batch: BWFI563
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Nitrate + Nitrite, Total, as N ND 0.10 1.00
QC Sample ID: BWF1564-BLKI Batch: BWF1564
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Nitrate + Nitrite, Total, as N ND 0.10 1.00
LCS -EPA 353.2
QC Sample JD: BWF1563-BSI Batch: BWFl563
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Nitrate+ Nitrite, Total, as N 94.8 80 -120 1.9 2.00 0.10 1.00
QC Sample ID: BWF1564-BS1 Batch: BWF1564
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Nitrate+ Nitrite, Total, as N 93.8 80 -120 1.9 2.00 0.10 1.00
Matrix Spike -EPA 353.2
QC Sample ID: BWF1563-MSI Batch: BWF1563 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Nitrate+ Nitrite, Total, as N 93.3 80 -120 9.6 8.7 1.00 0.50 5.00
QC Sample ID: BWF1563-MS2 Batch: BWF1563 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Nitrate+ Nitrite, Total, as N 86.3 80 -120 3.2 2.3 1.00 0.10 1.00
QC Sample ID: BWF1563-MS3 Batch: BWF1563 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Nitrate + Nitrite, Total, as N 100 80 -120 1.5 0.46 1.00 0.50 5.00
QC Sample ID: BWF1564-MSI Batch: BWF1564 QC Source Sample: 22F2101-06
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Nitrate + Nitrite, Total, as N 83.9 80 -120 5.0 4.2 1.00 0.20 2.00
QC Sample ID: BWFl564-MS2 Batch: BWFl564 QC Source Sample: 22F2 IO 1-09
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Nitrate+ Nitrite, Total, as N 102 80 -120 4.9 3.9 1.00 0.10 1.00
Matrix Spike Dup -EPA 353.2
QC Sample ID: BWF1563-MSD1 Batch: BWF1563 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Nitrate + Nitrite, Total, as N 99.0 0.592 80 -120 20 9.7 8.7 1.00 · 0.50 5.00
QC Sample ID: BWF1563-MSD2 Batch: BWFI563 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Nitrate+ Nitrite, Total, as N 80.6 1.82 80 -120 20 3.1 2.3 1.00 0.10 1.00
QC Sample ID: BWF1563-MSD3 Batch: BWF1563 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Nitrate+ Nitrite, Total, as N 108 4.98 80 -120 20 1.5 0.46 1.00 0.50 5.00
QC Sample ID: BWFl 564-MSDl Batch: BWF1564 QC Source Sample: 22F2101-06
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Nitrate+ Nitrite, Total, as N 93.7 1.93 80-120 20 5.1 4.2 1.00 0.20 2.00
QC Sample ID: BWF1564-MSD2 Batch: BWF1564 QC Source Sample: 22F2101-09
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Nitrate+ Nitrite, Total, as N 104 0.427 80 -120 20 4.9 3.9 1.00 0.10 1.00
CtF WO#: 22F2101
www.ChemtechFord.com
QC Report for Work Order (WO) -22F2101
Analyte %Rec RPO Limits RPO Max Result Source Cone SpkValue MRL OF
Blank -EPA 8260D /5030A
QC Sample ID: BWF1569-BLK1 Batch: BWF1569
Date Prepared: 06/29/2022 Date Analyzed: 06/29/2022
Carbon Tetrachloride ND 1.0 1.00
Chloroform ND 1.0 1.00
Chloromethane ND 1.0 1.00
J-LOW -Estimated low due to low recovery of LCS or CCV
Methylene Chloride ND 1.0 1.00
QC Sample ID: BWF1609-BLK1 Batch: BWF1609
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
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 8260D /5030A
QC Sample ID: BWF1569-BS1 Batch: BWF1569
Date Prepared: 06/29/2022 Date Analyzed: 06/29/2022
Carbon Tetrachloride 112 70 -130 11.2 10.0 1.0 1.00
Chloroform 108 70 -130 10.8 10.0 1.0 1.00
Chloromethane 69.0 70 -130 6.90 10.0 1.0 1.00
J-LOW -Estimated low due to low recovery of LCS or CCV
Methylene Chloride 104 70 -130 10.4 10.0 1.0 1.00
QC Sample ID: BWF1609-BS1 Batch: BWF1609
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Carbon Tetrachloride 106 70 -130 10.6 10.0 1.0 1.00
Chloroform 94.2 70 -130 9.42 10.0 1.0 1.00
Ch lorometha ne 75.2 70 -130 7.52 10.0 1.0 1.00
Methylene Chloride 103 70 -130 10.3 10.0 1.0 1.00
Matrix Spike -EPA 8260D /5030A
QC Sample ID: BWF1569-MS1 Batch: BWF1569 QC Source Sample: 22F2 l O 1-09
Date Prepared: 06/29/2022 Date Analyzed: 06/29/2022
Carbon Tetrachloride 93.9 70 -130 9.39 ND 10.0 1.0 1.00
Chloroform -3370 70 -130 110 447 10.0 1.0 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.
Chloromethane 91.3 70 -130 9.13 ND 10.0 1.0 1.00
J-LOW -Estimated low due to low recovery of LCS or CCV
Methylene Chloride 91.0 70 -130 9.10 ND 10.0 1.0 1.00
QC Sample ID: BWF1609-MS1 Batch: BWF1609 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Carbon Tetrachloride 82.4 70 -130 103 ND 125 12.5 1.00
Chloroform 88.5 70 -130 111 ND 125 12.5 1.00
Chloromethane 68.4 70 -130 85.5 ND 125 12.5 1.00
MS-Low -Estimated low due to Matrix Spike recovery.
Methylene Chloride 102 70 -130 127 ND 125 12.5 1.00
Matrix Spike Dup -EPA 8260D /5030A
QC Sample ID: BWF1569-MSD1 Batch: BWF1569 QC Source Sample: 22F2 l O 1-09
Date Prepared: 06/29/2022 Date Analyzed: 06/29/2022
Carbon Tetrachloride 92.0 2.04 70 -130 20 9.20 ND 10.0 1.0 1.00
Chloroform -3350 -0.574 70 -130 20 112 447 10.0 1.0 1.00
CtF WO#: 22F2101
www.ChemtechFord.com
Analyte
QC Sample ID: BWFI569-MSDI
Date Prepared: 06/29/2022
QC Report for Work Order (WO) -22F2101
%Rec RPD Limits RPD Max Result Source Cone Spk Value MRL
Matrix Spike Dup -EPA 8260D /5030A (cont.)
Batch: BWF1569 QC Source Sample: 22F2I01-09
Date Analyzed: 06/29/2022
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.
Chloromethane 87.7 4.02 70 -130 20 8.77 ND
J-LOW -Estimated low due to low recovery of LCS or CCV
Methylene Chloride 92.9 2.07 70 -130 20 9.29 ND
QC Sample ID: BWF1609-MSD1 Batch: BWF1609 QC Source Sample: XXXXXXX-XX
Date Prepared: 06/30/2022 Date Analyzed: 06/30/2022
Carbon Tetrachloride 72.4 12.9
Chloroform 82.9 6.53
Ch lorometha ne 61 .5 10.6
MS-Low -Estimated low due to Matrix Spike recovery.
Methylene Chloride
CtF WO#: 22F2101
www.ChemtechFord.com
93.4 8.41
70 -130 20 90.5 ND
70 -130 20 104 ND
70 -130 20 76.9 ND
70 -130 20 117 ND
10.0 1.0
10.0 1.0
125 12.5
125 12.5
125 12.5
125 12.5
DF
1.00
1.00
1.00
1.00
1.00
1.00
Surrogates Report for Work Order (WO) -22F2101
QCID Analyte
BWF1569-BLK1 1,2-Dichloroethane-d4
BWF1569-BLK1 4-Bromofluorobenzene
BWF1569-BLK1 Toluene-dB
BWF1609-BLK1 1,2-Dichloroethane-d4
BWF1609-BLK1 4-Bromofluorobenzene
BWF1609-BLK1 Toluene-dB
BWF1569-BS1 1,2-Dichloroethane-d4
BWF1569-BS1 4-Bromofluorobenzene
BWF1569-BS1 Toluene-dB
BWF1609-BS1 1,2-Dichloroethane-d4
BWF1609-BS1 4-Bromofluorobenzene
BWF1609-BS1 Toluene-dB
BWF1569-MS1 1,2-Dichloroethane-d4
BWF1569-MS1 4-Bromofluorobenzene
BWF1569-MS1 Toluene-dB
BWF1609-MS1 1,2-Dichloroethane-d4
BWF1609-MS1 4-Bromofluorobenzene
BWF1609-MS1 Toluene-dB
BWF1569-MS01 1,2-Dichloroethane-d4
BWF1569-MS01 4-Bromofluorobenzene
BWF1569-MS01 Toluene-dB
BWF1609-MS01 1,2-Dichloroethane-d4
BWF1609-MS01 4-Bromofluorobenzene
BWF1609-MS01 Toluene-dB
CtF WO#: 22F2101
www.ChemtechFord.com
% Rec LCL UCL Result
Blank -EPA 8260D /5030A
99.5 64.2 126 9.95
94.6 71.4 122 9.46
98.9 63.2 129 9.89
86.4 64.2 126 8.64
94.5 71.4 122 9.45
100 63.2 129 10.0
LCS -EPA 8260D /5030A
99.8 64.2 126 9.98
102 71.4 122 10.2
100 63.2 129 10.0
92.5 64.2 126 9.25
93.9 71.4 122 9.39
100 63.2 129 10.0
Matrix Spike -EPA 8260D /5030A
90.4 64.2 126 9.04
95.9 71.4 122 9.59
99.7 63.2 129 9.97
90.8 64.2 126 114
100 71.4 122 125
100 63.2 129 125
Matrix Spike Dup -EPA 8260D /5030A
94.9 64.2 126 9.49
95.2 71.4 122 9.52
100 63.2 129 10.0
90.8 64.2 126 114
97.0 71.4 122 121
100 63.2 129 125
SpkValue Batch DF
10.0 BWF1569 1.00
10.0 BWF1569 1.00
10.0 BWF1569 1.00
10.0 BWF1609 1.00
10.0 BWF1609 1.00
10.0 BWF1609 1.00
10.0 BWF1569 1.00
10.0 BWF1569 1.00
10.0 BWF1569 1.00
10.0 BWF1609 1.00
10.0 BWF1609 1.00
10.0 BWF1609 1.00
10.0 BWF1569 1.00
10.0 BWF1569 1.00
10.0 BWF1569 1.00
125 BWF1609 1.00
125 BWF1609 1.00
125 BWF1609 1.00
10.0 BWF1569 1.00
10.0 BWF1569 1.00
10.0 BWF1569 1.00
125 BWF1609 1.00
125 BWF1609 1.00
125 BWF1609 1.00
Surrogate Recoveries (Field Samples)
LabNumber Analyte
8260 Low Level Volatiles
22F2101-01 4-Bromofluorobenzene
22F2101-01 Toluene-dB
22F2101-01 1,2-Dichloroethane-d4
8260 Low Level Volatiles
22F2101-02 1,2-Dichloroethane-d4
22F2101-02
22F2101-02
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22F2101-03 Toluene-dB
22F2101-03
22F2101-03
1,2-Dichloroethane-d4
4-Bromofluorobenzene
8260 Low Level Volatiles
22F2101-04 Toluene-dB
22F2101-04
22F2101-04
1,2-Dichloroethane-d4
4-Bromofluorobenzene
8260 Low Level Volatiles
22F2101-05 1,2-Dichloroethane-d4
22F2101-05
22F2101-05
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22F2101-06 4-Bromofluorobenzene
22F2101-06
22F2101-06
1,2-Dichloroethane-d4
Toluene-dB
8260 Low Level Volatiles
22F2101-07 1,2-Dichloroethane-d4
22F2101-07
22F2101-07
Toluene-dB
4-Bromofluorobenzene
8260 Low Level Volatiles
22F2101-08 Toluene-dB
22F2101-08 1,2-Dichloroethane-d4
CtF WO#: 22F2101
www.ChemtechFord.com
Result
9.36
10.0
9.72
9.27
9.45
10.0
10.0
9.63
9.48
10.1
9.80
9.34
9.61
9.41
9.98
9.52
9.53
9.88
9.52
10.0
9.31
10.1
9.85
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
93.6
100
97.2
92.7
94.5
100
100
96.3
94.8
101
98.0
93.4
96.1
94.1
99.8
95.2
95.3
98.8
95.2
100
93.1
101
98.5
LCL UCL Qualifier
71.4 122
63.2 129
64.2 126
64.2 126
71.4 122
63.2 129
63.2 129
64.2 126
71.4 122
63.2 129
64.2 126
71.4 122
64.2 126
71.4 122
63.2 129
71.4 122
64.2 126
63.2 129
64.2 126
63.2 129
71.4 122
63.2 129
64.2 126
22F2101-08 4-Bromofluorobenzene
8260 Low Level Volatiles
22F2101-09 1,2-Dichloroethane-d4
22F2101-09
22F2101-09
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22F2101-10 1,2-Dichloroethane-d4
22F2101-10
22F2101-10
4-Bromofluorobenzene
Toluene-dB
8260 Low Level Volatiles
22F2101-11 Toluene-dB
22F2101-11
22F2101-11
1,2-Dichloroethane-d4
4-Bromofluorobenzene
8260 Low Level Volatiles
22F2101-12 1,2-Dichloroethane-d4
22F2101-12
22F2101-12
4-Bromofluorobenzene
Toluene-dB
CtF WO#: 22F2101
www.ChemtechFord.com
9.21
9.27
9.99
10.0
9.76
9.22
10.0
10.0
8.70
9.57
9.65
9.53
9.94
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
92.1
92.7
99.9
100
97.6
92.2
100
100
87.0
95.7
96.5
95.3
99.4
71.4 122
64.2 126
71.4 122
63.2 129
64.2 126
71.4 122
63.2 129
63.2 129
64.2 126
71.4 122
64.2 126
71.4 122
63.2 129
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 RPD pH RPD Temperature RPD Redox RPD Turbidity RPD Dissolved Oxygen RPD
MW-04 NA Continuously Pumped well -1899 NC 7.15 NC 16.50 NC 438 NC
TW4-01 NA Continuously Pumped well --2300 NC 7.30 NC 18.40 NC 422 NC
TW4-02 NA Continuously Pumped well --3973 NC 7.19 NC 16.41 NC 471 NC
_1W4-,03 --49.08. -,-. -68.75 _'_ 98.16 . w P.umoed Pl'Y.<' '.:.c~1855 :-Ji 1861 0.32, 6.78 r 6.82 0.59 ", -15:07 t _ 15.04 0.20,, < --·-NM ~ :,T·NC'~ i-~ -_ -1,
TW4-04 NA Continuously Pumped well -2444 NC 7.45 NC 17.43 NC 438 NC
TW4-05 32.24 77.00 64.48 okay 1611 1600 0.69 6.85 6.87 0.29 15.72 15.72 0.00 293 293 0.00 6.3
lW4·06 ,. ~2.92 J 13.75 25.84 PumoedDry 3951 3955 0.10 6.73 6.73 0.00 15.06 15.03 0.20 .--~ NM _, NC. -j
1W4-07 '
,~ 24.91 52.25 49.82 Pumoed Orv 1949 1960 0.56. 7.25 7.24 0.14 14.82 14.84 0.13 T NM· -,NC .
TW4-08 26.59 66.00 53.18 okay 4803 4804 0.02 6.60 6.61 0.15 15.40 15.32 0.52 313 313 0.00 2.9
TW4-09 32.25 88.00 64.5 okay 2503 2502 0.04 6.77 6.77 0.00 15.12 15.11 0.07 356 354 0.56 32.0
TW4-10 28.14 36.66 -56.28 Pumped 01'.Y 2507 2515 0.32 6.64 11 6.66 0.30 15.24 15.23 0.07 . --NM -• I .NC .·_:.:. '-'
TW4-11 NA Continuously Pumped well --3791 NC 7.01 NC 17.01 NC 399 NC
1W4-12 30.76 38.50 61 .52 Pumped Dry 1509 1515 0.40 7.38 7.39 I 0.14 II 14.43 14.45 0.14 . NM NC·-'
TW4-13 :! '31 .50 41.25 63 Pumoed Ory 2097 2108 0.52 7.37 7-.36 0.14 14.50 14.54 0.28 . NM NC .
rw4:14 11 11.61 13.75 23.22 Pumped Orv 2737 2755 0.66 6.82 • 6.n 0.74 15.70 15.65 0.32 NM ,NC
MW-26 NA Continuously Pumped well .. 3473 NC 6.96 NC 17.80 NC 404 NC
TW4-16 47.96 110.00 95.92 okay 3689 3629 1.64 6.71 6.73 0.30 14.99 15.00 0.07 360 334 7.49 12.0
MW-32 31.40 65.10 62.8 okay 3727 3727 0.00 6.54 6.54 0.00 15.31 15.31 0.00 265 264 0.38 43.2
TW4-18 41.19 99.00 82.38 okay 2027 2001 1.29 6.63 6.62 0.15 15.62 15.62 0.00 379 378 0.26 32.4
TW4-19 NA Continuously Pumped well -2742 NC 6.87 NC 17.20 NC 412 NC
TW4-21 NA Continuously Pumped well -· 2790 NC 7.03 NC 18.00 NC 482 NC
TW4-22 NA Continuously Pumped well .. 4851 NC 6.62 NC 16.60 NC 455 NC
TW4-23 26.15 88.00 52.3 okay 3512 3520 0.23 6.81 6.82 0.15 14.85 14.83 0.13 208 205 1.45 64.0
TW4-24 NA Continuously Pumped well -· 6997 NC 6.84 NC 15.94 NC 504 NC
TW4-25 NA Continuously Pumped well .. 2564 NC 7.14 NC 16.70 NC 489 NC
lW4·26 -8.41 8.25 . 16.82 Pumped Ory I 4644 4~ 0.00 7.12 7.11 0.14 ·-15.04 15.00 0.27 NM NC
1W4-27 10.85 11 .00 21.7 Pumoed Orv 5191 5196 0.10 6.54 6.57 0.46 15.37 --15.34 0.20 NM ,NC
1W4_-28 38.82 47.66 n .64 Pumoed D.IY 1555 1553 0.13 7.49 7.48 0.13 11 ,14.03 14.01 0.14 NM NC !
1W4-29 8.56 11.00 17.12 Pumped Dr.v 4026 4038 0.30 7.07 .. 7.08 0.14 15.17 15.12 0.33 ~ NM . --~c --
1W4-30 11.83 13.75 23.66 Pumoed ·Drv 4431 4435 0.09 6.03 6.05 0.33 I'· 15.72 15.63 o.sr ,---NM ----,-__ NC_cc. --,, . . --
TW4·31 20.42 24.75 40.84 Pumoed Ory 2423 2440 0.70 7.06 7.06 0.00 15.05 15.04 0.07 ,_ NM rfC -_-. -
TW4-32 37.78 77.00 75.56 okay 6236 6288 0.83 3.99 3.99 0.00 15.10 15.08 0.13 482 484 0.41 15.0
1W4-33 4.n . 3.66 9.54 , . Pumoed DrY. 4612 4620 0.17 7.16 7.20 0.56 15.36 15.31 0.33 NM Ne .,,
TW:4-34 12.00 -14.66 24 Pumoed Ory 3611 3615 0.11 7.21 7.21 0.00 , 14.88 14.85 0.20 NM ,NC · I
TW4-35 7.()7 11.00 14.14 Pumped Qry , 4390 4394 0.09 6.70 6.70 ' 0.00 14.82 14.90 0.54 NM NC . .
TW4-36 2a.n 33.00 53.54 Pumped 1Drv 2467 2467 0.00 7.15 7.15 0.00 14.30 14.34 0.28 ' . NM 'NC
TW4-37 NA Continuously Pumped well .. 48.11 NC 6.64 NC 17.10 NC 489 NC
TW4-38 34.96 77.00 69.92 okay 1753 1809 3.14 6.82 6.87 0.73 15.00 15.01 0.07 310 309 0.32 18.0
TW4-39 NA Continuously Pumped well ·-2501 NC 7.00 NC 16.40 NC 511 NC
TW4-40 NA Continuously Pumped well .. 4239 NC 6.72 NC 16.64 NC 454 NC
TW4-41 NA Continuously Pumped well .. 2836 NC 7.39 NC 18.18 NC 431 NC
TW4-42 10.10 11 .00 20.2 Pumoed Div 3695 3702 0.19 7.27 11 7.28 0.14 I 14.60 14.54 0.41 NM NC
TW4-43 14.45 22.00 28.9 Pumoed 'Dry 3725 3742 0.46 6.95 6.95 0.00' 14.96 15.00 0.27 --:.NM NC ' -
MW-04, MW-26, MW-26, TW4-01, TW4-02, TW4-04, TW4-11, TW4-19, TW4-21, TW4-22, TW4-24, TW4-25, TW4-37, TW4-39, TW4-40, TW4-41 are continually pumped wells.
il'W4-©3, 'lWzl--0@, il"W4-0'Z, TW4-1 o, TWH ~. I W4-13, 1W4-14, TIA(4-26, liW4-27, 'fW4-28, 'FW4-2~, 'li'W4-30, 1fW4-31 'FW4-33, r W4-34, TW:4-35, r w a-36, ]W4-42, il"W.:t-43 were 1QUl1ili:Jed drM alild saml'!lea afte~ recove~.
NM = Not Measured. The OAP does not require the measurement of redox potential or turbidity in wells that were purged to dryness.
RPD = Relative Percent Difference
0
1.0
0.4
NM
0
NM
NM·
NM
1.0
NM
NM
NM
0.3
1.1
0
1.7
0
0.7
NM
NM
NM
NM
NM
NM
NM
NM
NM
NM
0
0
0
0
NM
NM
The QAP 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 OAP 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.
NC 30.0 NC
NC 83.0 NC
NC 92.0 NC
~ _, ~ NC ,_ • 77~-:_NM:__--:---~:::. ·_N\.,"'i_ ~! ·-NC 99.0 NC
6.2 1.60 64.5 64.0 0.78
J_ -;_ NC .... , ' .. -;, NM _ .• , '.;. II ',N(?;.',~:
NC -: ... _-1'1 ML. .. ,f -; .NC:.~-;
2.9 0.00 1.0 1.0 0.00
32.0 0.00 1.0 1.0 0.00
NC '-'·.,,.NM -:~ tf NC ' ,,
NC 83.0 NC
NC . •. ._ NM -;.'. I NC
Ne-,_ .. -NM ... .-.,;; NC :,;,
NC I• NM . -~. ,_ ,, 'NC ·
NC 33.0 NC
13.0 8.00 2.1 2.1 0.00
43.3 0.23 15.9 15.9 0.00
32.7 0.92 10.8 10.8 0.00
NC 38.7 NC
NC 50.0 NC
NC 37.0 NC
65.0 1.55 78.0 79.0 1.27
NC 23.0 NC
NC 30.0 NC
NC It .I NM : NC -'
NC ... ,v ~ NM •· .., NC ' ~c I, ' NM , r N.C .I I I}
•.· -NC, ;,--N M -, ' 1.-: ..... NC,
--Ne -,. 1, -:-,N 1111 • C • _ NC
NC ·T • : NM --1, :;-'NC
14.0 6.90 0.9 0.9 0.00
NC · .. -~.N f.11: ,, NC I
,, NC I""' '..(N f.11 ,_·; NG ,,.
I• NC -·'NM ~ · .. NC
1, NC i:;:"~ , "' -_NM." --0NC _:
NC 70.0 NC
17.8 1.12 78.0 78.0 0.00
NC 52.0 NC
NC 63.0 NC
NC 98.0 NC
NC J NM ,.-r v N.C
' NC C ~.-; NM ... '"' NC · --
I-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 5/16/2022 5/26/2022 IO 14 OK
Trip Blank Chloroform 5/16/2022 5/26/2022 JO 14 OK
Trip Blank Chloromethane 5/16/2022 5/26/2022 JO 14 OK
Trip Blank Methylene Chloride 5/16/2022 5/26/2022 JO 14 OK
Trip Blank Carbon Tetrachloride 6/8/2022 6/17/2022 9 14 OK
Trip Blank Chloroform 6/8/2022 6/17/2022 9 14 OK
Trip Blank Chloromethane 6/8/2022 6/17/2022 9 14 OK
Trip Blank Methylene Chloride 6/8/2022 6/17/2022 9 14 OK
Trip Blank Carbon Tetrachloride 6/14/2022 6/25/2022 11 14 OK
Trip Blank Chloroform 6/14/2022 6/25/2022 11 14 OK
Trip Blank Chloromethane 6/14/2022 6/25/2022 11 14 OK
Trip Blank Methylene Chloride 6/14/2022 6/25/2022 11 14 OK
Trip Blank Carbon Tetrachloride 6/21/2022 6/29/2022 8 14 OK
Trip Blank Chloroform 6/21/2022 6/29/2022 8 14 OK
Trip Blank Chloromethane 6/21/2022 6/29/2022 8 14 OK
Trip Blank Methylene Chloride 6/21/2022 6/29/2022 8 14 OK
MW-04 Chloride 6/8/2022 6/17/2022 9 28 OK
MW-04 Carbon Tetrachloride 6/8/2022 6/14/2022 6 14 OK
MW-04 Chloroform 6/8/2022 6/14/2022 6 14 OK
MW-04 Chloromethane 6/8/2022 6/14/2022 6 14 OK
MW-04 Methylene Chloride 6/8/2022 6/14/2022 6 14 OK
MW-04 Nitrate+ Nitrite as N 6/8/2022 6/20/2022 12 28 OK
TW4-01 Chloride 6/8/2022 6/17/2022 9 28 OK
TW4-0l Carbon Tetrachloride 6/8/2022 6/14/2022 6 14 OK
TW4-0l Chloroform 6/8/2022 6/14/2022 6 14 OK
TW4-0I Chloromethane 6/8/2022 6/14/2022 6 14 OK
TW4-0l Methylene Chloride 6/8/2022 6/14/2022 6 14 OK
TW4-0l Nitrate+ Nitrite as N 6/8/2022 6/13/2022 5 28 OK
TW4-02 Chloride 6/8/2022 6/17/2022 9 28 OK
TW4-02 Carbon Tetrachloride 6/8/2022 6/14/2022 6 14 OK
TW4-02 Chloroform 6/8/2022 6/14/2022 6 14 OK
TW4-02 Chloromethane 6/8/2022 6/14/2022 6 14 OK
TW4-02 Methylene Chloride 6/8/2022 6/14/2022 6 14 OK
TW4-02 Nitrate + Nitrite as N 6/8/2022 6/13/2022 5 28 OK
TW4-03 Chloride 6/15/2022 6/24/2022 9 28 OK
TW4-03 Carbon Tetrachloride 6/15/2022 6/23/2022 8 14 OK
TW4-03 Chloroform 6/15/2022 6/23/2022 8 14 OK
TW4-03 Chloromethane 6/15/2022 6/23/2022 8 14 OK
TW4-03 Methylene Chloride 6/15/2022 6/23/2022 8 14 OK
TW4-03 Nitrate+ Nitrite as N 6/15/2022 6/21/2022 6 28 OK
TW4-03R Chloride 6/14/2022 6/24/2022 JO 28 OK
TW4-03R Carbon Tetrachloride 6/14/2022 6/23/2022 9 14 OK
TW4-03R Chloroform 6/14/2022 6/23/2022 9 14 OK
TW4-03R Chloromethane 6/14/2022 6/23/2022 9 14 OK
TW4-03R Methylene Chloride 6/14/2022 6/23/2022 9 14 OK
TW4-03R Nitrate + Nitrite as N 6/14/2022 6/21/2022 7 28 OK
TW4-04 Chloride 6/8/2022 6/17/2022 9 28 OK
TW4-04 Carbon Tetrachloride 6/8/2022 6/14/2022 6 14 OK
TW4-04 Chloroform 6/8/2022 6/14/2022 6 14 OK
TW4-04 Chloromethane 6/8/2022 6/14/2022 6 14 OK
TW4-04 Methylene Chloride 6/8/2022 6/14/2022 6 14 OK
TW4-04 Nitrate+ Nitrite as N 6/8/2022 6/13/2022 5 28 OK
TW4-05 Chloride 6/16/2022 6/24/2022 8 28 OK
1-2: Holding Time Evaluation
Hold Time Allowed Hold Hold Time
Location ID Parameter Name Sample Date Analysis Date (Davs) Time (Days) Check
TW4-05 Carbon Tetrachloride 6/16/2022 6/25/2022 9 14 OK
TW4-05 Chloroform 6/16/2022 6/25/2022 9 14 OK
TW4-05 Chloromethane 6/16/2022 6/25/2022 9 14 OK
TW4-05 Methylene Chloride 6/16/2022 6/25/2022 9 14 OK
TW4-05 Nitrate + Nitrite as N 6/16/2022 6/27/2022 11 28 OK
TW4-06 Chloride 6/16/2022 6/24/2022 8 28 OK
TW4-06 Carbon Tetrachloride 6/16/2022 6/25/2022 9 14 OK
TW4-06 Chloroform 6/16/2022 6/25/2022 9 14 OK
TW4-06 Chloromethane 6/16/2022 6/25/2022 9 14 OK
TW4-06 Methylene Chloride 6/16/2022 6/25/2022 9 14 OK
TW4-06 Nitrate + Nitrite as N 6/16/2022 6/27/2022 l l 28 OK
TW4-07 Chloride 6/22/2022 7/1/2022 9 28 OK
TW4-07 Carbon Tetrachloride 6/22/2022 6/29/2022 7 14 OK
TW4-07 Chloroform 6/22/2022 6/29/2022 7 14 OK
TW4-07 Chloromethane 6/22/2022 6/29/2022 7 14 OK
TW4-07 Methylene Chloride 6/22/2022 6/29/2022 7 14 OK
TW4-07 Nitrate + Nitrite as N 6/22/2022 6/30/2022 8 28 OK
TW4-08 Chloride 6/16/2022 6/24/2022 8 28 OK
TW4-08 Carbon Tetrachloride 6/16/2022 6/25/2022 9 14 OK
TW4-08 Chloroform 6/16/2022 6/25/2022 9 14 OK
TW4-08 Chloromethane 6/16/2022 6/25/2022 9 14 OK
TW4-08 Methylene Chloride 6/16/2022 6/25/2022 9 14 OK
TW4-08 Nitrate+ Nitrite as N 6/16/2022 6/27/2022 11 28 OK
TW4-09 Chloride 6/22/2022 6/30/2022 8 28 OK
TW4-09 Carbon Tetrachloride 6/22/2022 6/29/2022 7 14 OK
TW4-09 Chloroform 6/22/2022 6/29/2022 7 14 OK
TW4-09 Chloromethane 6/22/2022 6/29/2022 7 14 OK
TW4-09 Methylene Chloride 6/22/2022 6/29/2022 7 14 OK
TW4-09 Nitrate+ Nitrite as N 6/22/2022 6/30/2022 8 28 OK
TW4-09R Chloride 6/21/2022 6/30/2022 9 28 OK
TW4-09R Carbon Tetrachloride 6/21/2022 6/29/2022 8 14 OK
TW4-09R Chloroform 6/21/2022 6/29/2022 8 14 OK
TW4-09R Chloromethane 6/21/2022 6/29/2022 8 14 OK
TW4-09R Methylene Chloride 6/21/2022 6/29/2022 8 14 OK
TW4-09R Nitrate+ Nitrite as N 6/21/2022 6/30/2022 9 28 OK
TW4-10 Chloride 6/22/2022 6/30/2022 8 28 OK
TW4-10 Carbon Tetrachloride 6/22/2022 6/29/2022 7 14 OK
TW4-10 Chloroform 6/22/2022 6/29/2022 7 14 OK
TW4-10 Chloromethane 6/22/2022 6/29/2022 7 14 OK
TW4-10 Methylene Chloride 6/22/2022 6/29/2022 7 14 OK
TW4-10 Nitrate + Nitrite as N 6/22/2022 6/30/2022 8 28 OK
TW4-l 1 Chloride 6/8/2022 6/17/2022 9 28 OK
TW4-ll Carbon Tetrachloride 6/8/2022 6/14/2022 6 14 OK
TW4-11 Chloroform 6/8/2022 6/14/2022 6 14 OK
TW4-l 1 Chloromethane 6/8/2022 6/14/2022 6 14 OK
TW4-l l Methylene Chloride 6/8/2022 6/14/2022 6 14 OK
TW4-l 1 Nitrate + Nitrite as N 6/8/2022 6/20/2022 12 28 OK
TW4-12 Chloride 6/15/2022 6/24/2022 9 28 OK
TW4-l2 Carbon Tetrachloride 6/15/2022 6/23/2022 8 14 OK
TW4-12 Chloroform 6/15/2022 6/23/2022 8 14 OK
TW4-12 Chloromethane 6/15/2022 6/23/2022 8 14 OK
TW4-12 Methylene Chloride 6/15/2022 6/23/2022 8 14 OK
TW4-12 Nitrate + Nitrite as N 6/15/2022 6/21/2022 6 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
TW4-13 Chloride 6/15/2022 6/24/2022 9 28 OK
TW4-13 Carbon Tetrachloride 6/15/2022 6/23/2022 8 14 OK
TW4-13 Chloroform 6/15/2022 6/23/2022 8 14 OK
TW4-13 Chloromethane 6/15/2022 6/23/2022 8 14 OK
TW4-13 Methylene Chloride 6/15/2022 6/23/2022 8 14 OK
TW4-13 Nitrate + Nitrite as N 6/15/2022 6/21/2022 6 28 OK
TW4-14 Chloride 6/16/2022 6/24/2022 8 28 OK
TW4-14 Carbon Tetrachloride 6/16/2022 6/23/2022 7 14 OK
TW4-14 Chloroform 6/16/2022 6/23/2022 7 14 OK
TW4-14 Chloromethane 6/16/2022 6/23/2022 7 14 OK
TW4-14 Methylene Chloride 6/16/2022 6/23/2022 7 14 OK
TW4-14 Nitrate + Nitrite as N 6/16/2022 6/21/2022 5 28 OK
MW-26 Chloride 6/8/2022 6/17/2022 9 28 OK
MW-26 Carbon Tetrachloride 6/8/2022 6/14/2022 6 14 OK
MW-26 Chloroform 6/8/2022 6/14/2022 6 14 OK
MW-26 Chloromethane 6/8/2022 6/14/2022 6 14 OK
MW-26 Methylene Chloride 6/8/2022 6/14/2022 6 14 OK
MW-26 Nitrate+ Nitrite as N 6/8/2022 6/13/2022 5 28 OK
TW4-16 Chloride 6/22/2022 6/30/2022 8 28 OK
TW4-16 Carbon Tetrachloride 6/22/2022 6/29/2022 7 14 OK
TW4-16 Chloroform 6/22/2022 6/29/2022 7 14 OK
TW4-16 Chloromethane 6/22/2022 6/29/2022 7 14 OK
TW4-16 Methylene Chloride 6/22/2022 6/29/2022 7 14 OK
TW4-16 Nitrate+ Nitrite as N 6/22/2022 6/30/2022 8 28 OK
MW-32 Chloride 5/16/2022 5/24/2022 8 28 OK
MW-32 Carbon Tetrachloride 5/16/2022 5/26/2022 10 14 OK
MW-32 Chloroform 5/16/2022 5/26/2022 10 14 OK
MW-32 Ch loromethane 5/16/2022 5/26/2022 10 14 OK
MW-32 Methylene Chloride 5/16/2022 5/26/2022 10 14 OK
MW-32 Nitrate + Nitrite as N 5/16/2022 5/24/2022 8 28 OK
TW4-18 Chloride 6/22/2022 6/30/2022 8 28 OK
TW4-18 Carbon Tetrachloride 6/22/2022 6/29/2022 7 14 OK
TW4-18 Chloroform 6/22/2022 6/29/2022 7 14 OK
TW4-18 Chloromethane 6/22/2022 6/29/2022 7 14 OK
TW4-18 Methylene Chloride 6/22/2022 6/29/2022 7 14 OK
TW4-18 Nitrate+ Nitrite as N 6/22/2022 6/30/2022 8 28 OK
TW4-19 Chloride 6/8/2022 6/17/2022 9 28 OK
TW4-19 Carbon Tetrachloride 6/8/2022 6/14/2022 6 14 OK
TW4-19 Chloroform 6/8/2022 6/14/2022 6 14 OK
TW4-19 Chloromethane 6/8/2022 6/14/2022 6 14 OK
TW4-19 Methylene Chloride 6/8/2022 6/14/2022 6 14 OK
TW4-19 Nitrate + Nitrite as N 6/8/2022 6/13/2022 5 28 OK
TW4-21 Chloride 6/8/2022 6/17/2022 9 28 OK
TW4-21 Carbon Tetrachloride 6/8/2022 6/14/2022 6 14 OK
TW4-21 Chloroform 6/8/2022 6/14/2022 6 14 OK
TW4-21 Chloromethane 6/8/2022 6/14/2022 6 14 OK
TW4-21 Methylene Chloride 6/8/2022 6/14/2022 6 14 OK
TW4-21 Nitrate+ Nitrite as N 6/8/2022 6/13/2022 5 28 OK
TW4-22 Chloride 6/8/2022 6/17/2022 9 28 OK
TW4-22 Carbon Tetrachloride 6/8/2022 6/14/2022 6 14 OK
TW4-22 Chloroform 6/8/2022 6/14/2022 6 14 OK
TW4-22 Chloromethane 6/8/2022 6/14/2022 6 14 OK
TW4-22 Methylene Chloride 6/8/2022 6/14/2022 6 14 OK
1-2: Holding Time Evaluation
Hold Time Allowed Hold Hold Time
Location ID Parameter Name Sample Date Analysis Date (Davs) Time (Days) Check
TW4-22 Nitrate+ Nitrite as N 6/8/2022 6/21/2022 13 28 OK
TW4-23 Chloride 6/16/2022 6/24/2022 8 28 OK
TW4-23 Carbon Tetrachloride 6/16/2022 6/25/2022 9 14 OK
TW4-23 Chloroform 6/16/2022 6/25/2022 9 14 OK
TW4-23 Chloromethane 6/16/2022 6/25/2022 9 14 OK
TW4-23 Methylene Chloride 6/16/2022 6/25/2022 9 14 OK
TW4-23 Nitrate+ Nitrite as N 6/16/2022 6/27/2022 11 28 OK
TW4-24 Chloride 6/8/2022 6/20/2022 12 28 OK
TW4-24 Carbon Tetrachloride 6/8/2022 6/14/2022 6 14 OK
TW4-24 Chloroform 6/8/2022 6/14/2022 6 14 OK
TW4-24 Chloromethane 6/8/2022 6/14/2022 6 14 OK
TW4-24 Methylene Chloride 6/8/2022 6/14/2022 6 14 OK
TW4-24 Nitrate+ Nitrite as N 6/8/2022 6/13/2022 5 28 OK
TW4-25 Chloride 6/8/2022 6/17/2022 9 28 OK
TW4-25 Carbon Tetrachloride 6/8/2022 6/14/2022 6 14 OK
TW4-25 Chloroform 6/8/2022 6/14/2022 6 14 OK
TW4-25 Chloromethane 6/8/2022 6/14/2022 6 14 OK
TW4-25 Methylene Chloride 6/8/2022 6/14/2022 6 14 OK
TW4-25 Nitrate + Nitrite as N 6/8/2022 6/20/2022 12 28 OK
TW4-26 Chloride 6/22/2022 7/1/2022 9 28 OK
TW4-26 Carbon Tetrachloride 6/22/2022 6/29/2022 7 14 OK
TW4-26 Chloroform 6/22/2022 6/29/2022 7 14 OK
TW4-26 Chloromethane 6/22/2022 6/29/2022 7 14 OK
TW4-26 Methylene Chloride 6/22/2022 6/29/2022 7 14 OK
TW4-26 Nitrate + Nitrite as N 6/22/2022 6/30/2022 8 28 OK
TW4-27 Chloride 6/16/2022 6/24/2022 8 28 OK
TW4-27 Carbon Tetrachloride 6/16/2022 6/25/2022 9 14 OK
TW4-27 Chloroform 6/16/2022 6/25/2022 9 14 OK
TW4-27 Chloromethane 6/16/2022 6/25/2022 9 14 OK
TW4-27 Methylene Chloride 6/16/2022 6/25/2022 9 14 OK
TW4-27 Nitrate+ Nitrite as N 6/16/2022 6/27/2022 I 1 28 OK
TW4-28 Chloride 6/15/2022 6/24/2022 9 28 OK
TW4-28 Carbon Tetrachloride 6/15/2022 6/23/2022 8 14 OK
TW4-28 Chloroform 6/15/2022 6/23/2022 8 14 OK
TW4-28 Chloromethane 6/15/2022 6/23/2022 8 14 OK
TW4-28 Methylene Chloride 6/15/2022 6/23/2022 8 14 OK
TW4-28 Nitrate + Nitrite as N 6/15/2022 6/21/2022 6 28 OK
TW4-29 Chloride 6/22/2022 6/30/2022 8 28 OK
TW4-29 Carbon Tetrachloride 6/22/2022 6/29/2022 7 14 OK
TW4-29 Chloroform 6/22/2022 6/29/2022 7 14 OK
TW4-29 Chloromethane 6/22/2022 6/29/2022 7 14 OK
TW4-29 Methylene Chloride 6/22/2022 6/29/2022 7 14 OK
TW4-29 Nitrate+ Nitrite as N 6/22/2022 6/30/2022 8 28 OK
TW4-30 Chloride 6/22/2022 6/30/2022 8 28 OK
TW4-30 Carbon Tetrachloride 6/22/2022 6/29/2022 7 14 OK
TW4-30 Chloroform 6/22/2022 6/29/2022 7 14 OK
TW4-30 Chloromethane 6/22/2022 6/29/2022 7 14 OK
TW4-30 Methylene Chloride 6/22/2022 6/29/2022 7 14 OK
TW4-30 Nitrate + Nitrite as N 6/22/2022 6/30/2022 8 28 OK
TW4-31 Chloride 6/16/2022 6/24/2022 8 28 OK
TW4-31 Carbon Tetrachloride 6/16/2022 6/23/2022 7 14 OK
TW4-31 Chloroform 6/16/2022 6/23/2022 7 14 OK
TW4-31 Chloromethane 6/16/2022 6/23/2022 7 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
TW4-31 Methylene Chloride 6/16/2022 6/23/2022 7 14 OK
TW4-31 Nitrate + Nitrite as N 6/16/2022 6/21/2022 5 28 OK
TW4-32 Chloride 6/15/2022 6/24/2022 9 28 OK
TW4-32 Carbon Tetrachloride 6/15/2022 6/23/2022 8 14 OK
TW4-32 Chloroform 6/15/2022 6/23/2022 8 14 OK
TW4-32 Chloromethane 6/15/2022 6/23/2022 8 14 OK
TW4-32 Methylene Chloride 6/15/2022 6/23/2022 8 14 OK
TW4-32 Nitrate+ Nitrite as N 6/15/2022 6/21/2022 6 28 OK
TW4-33 Chloride 6/22/2022 6/30/2022 8 28 OK
TW4-33 Carbon Tetrachloride 6/22/2022 6/29/2022 7 14 OK
TW4-33 Chloroform 6/22/2022 6/29/2022 7 14 OK
TW4-33 Chloromethane 6/22/2022 6/29/2022 7 14 OK
TW4-33 Methylene Chloride 6/22/2022 6/29/2022 7 14 OK
TW4-33 Nitrate + Nitrite as N 6/22/2022 6/30/2022 8 28 OK
TW4-34 Chloride 6/16/2022 6/24/2022 8 28 OK
TW4-34 Carbon Tetrachloride 6/16/2022 6/23/2022 7 14 OK
TW4-34 Chloroform 6/16/2022 6/23/2022 7 14 OK
TW4-34 Chloromethane 6/16/2022 6/23/2022 7 14 OK
TW4-34 Methylene Chloride 6/16/2022 6/23/2022 7 14 OK
TW4-34 Nitrate + Nitrite as N 6/16/2022 6/21/2022 5 28 OK
TW4-35 Chloride 6/16/2022 6/24/2022 8 28 OK
TW4-35 Carbon Tetrachloride 6/16/2022 6/23/2022 7 14 OK
TW4-35 Chloroform 6/16/2022 6/23/2022 7 14 OK
TW4-35 Chloromethane 6/16/2022 6/23/2022 7 14 OK
TW4-35 Methylene Chloride 6/16/2022 6/23/2022 7 14 OK
TW4-35 Nitrate+ Nitrite as N 6/16/2022 6/21/2022 5 28 OK
TW4-36 Chloride 6/15/2022 6/24/2022 9 28 OK
TW4-36 Carbon Tetrachloride 6/15/2022 6/23/2022 8 14 OK
TW4-36 Chloroform 6/15/2022 6/23/2022 8 14 OK
TW4-36 Chloromethane 6/15/2022 6/23/2022 8 14 OK
TW4-36 Methylene Chloride 6/15/2022 6/23/2022 8 14 OK
TW4-36 Nitrate+ Nitrite as N 6/15/2022 6/21/2022 6 28 OK
TW4-37 Chloride 6/8/2022 6/17/2022 9 28 OK
TW4-37 Carbon Tetrachloride 6/8/2022 6/14/2022 6 14 OK
TW4-37 Chloroform 6/8/2022 6/14/2022 6 14 OK
TW4-37 Chloromethane 6/8/2022 6/14/2022 6 14 OK
TW4-37 Methylene Chloride 6/8/2022 6/14/2022 6 14 OK
TW4-37 Nitrate+ Nitrite as N 6/8/2022 6/21/2022 13 28 OK
TW4-38 Chloride 6/16/2022 6/24/2022 8 28 OK
TW4-38 Carbon Tetrachloride 6/16/2022 6/25/2022 9 14 OK
TW4-38 Chloroform 6/16/2022 6/25/2022 9 14 OK
TW4-38 Chloromethane 6/16/2022 6/25/2022 9 14 OK
TW4-38 Methylene Chloride 6/16/2022 6/25/2022 9 14 OK
TW4-38 Nitrate + Nitrite as N 6/16/2022 6/27/2022 11 28 OK
TW4-39 Chloride 6/8/2022 6/17/2022 9 28 OK
TW4-39 Carbon Tetrachloride 6/8/2022 6/14/2022 6 14 OK
TW4-39 Chloroform 6/8/2022 6/14/2022 6 14 OK
TW4-39 Chloromethane 6/8/2022 6/14/2022 6 14 OK
TW4-39 Methylene Chloride 6/8/2022 6/14/2022 6 14 OK
TW4-39 Nitrate+ Nitrite as N 6/8/2022 6/13/2022 5 28 OK
TW4-40 Chloride 6/8/2022 6/17/2022 9 28 OK
TW4-40 Carbon Tetrachloride 6/8/2022 6/14/2022 6 14 OK
TW4-40 Chloroform 6/8/2022 6/14/2022 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
TW4-40 Chloromethane 6/8/2022 6/14/2022 6 14 OK
TW4-40 Methylene Chloride 6/8/2022 6/14/2022 6 14 OK
TW4-40 Nitrate+ Nitrite as N 6/8/2022 6/13/2022 5 28 OK
TW4-41 Chloride 6/8/2022 6/17/2022 9 28 OK
TW4-41 Carbon Tetrachloride 6/8/2022 6/14/2022 6 14 OK
TW4-41 Chloroform 6/8/2022 6/14/2022 6 14 OK
TW4-41 Chloromethane 6/8/2022 6/14/2022 6 14 OK
TW4-41 Methylene Chloride 6/8/2022 6/14/2022 6 14 OK
TW4-41 Nitrate + Nitrite as N 6/8/2022 6/13/2022 5 28 OK
TW4-42 Chloride 6/15/2022 6/24/2022 9 28 OK
TW4-42 Carbon Tetrachloride 6/15/2022 6/23/2022 8 14 OK
TW4-42 Chloroform 6/15/2022 6/23/2022 8 14 OK
TW4-42 Chloromethane 6/15/2022 6/23/2022 8 14 OK
TW4-42 Methylene Chloride 6/15/2022 6/23/2022 8 14 OK
TW4-42 Nitrate + Nitrite as N 6/15/2022 6/21/2022 6 28 OK
TW4-43 Chloride 6/16/2022 6/24/2022 8 28 OK
TW4-43 Carbon Tetrachloride 6/16/2022 6/23/2022 7 14 OK
TW4-43 Chloroform 6/16/2022 6/23/2022 7 14 OK
TW4-43 Chloromethane 6/16/2022 6/23/2022 7 14 OK
TW4-43 Methylene Chloride 6/16/2022 6/23/2022 7 14 OK
TW4-43 Nitrate+ Nitrite as N 6/16/2022 6/21/2022 5 28 OK
TW4-60 Chloride 6/9/2022 6/17/2022 8 28 OK
TW4-60 Carbon Tetrachloride 6/9/2022 6/17/2022 8 14 OK
TW4-60 Chloroform 6/9/2022 6/17/2022 8 14 OK
TW4-60 Chloromethane 6/9/2022 6/17/2022 8 14 OK
TW4-60 Methylene Chloride 6/9/2022 6/17/2022 8 14 OK
TW4-60 Nitrate + Nitrite as N 6/9/2022 6/20/2022 11 28 OK
TW4-65 Chloride 6/15/2022 6/24/2022 9 28 OK
TW4-65 Carbon Tetrachloride 6/15/2022 6/23/2022 8 14 OK
TW4-65 Chloroform 6/15/2022 6/23/2022 8 14 OK
TW4-65 Chloromethane 6/15/2022 6/23/2022 8 14 OK
TW4-65 Methylene Chloride 6/15/2022 6/23/2022 8 14 OK
TW4-65 Nitrate + Nitrite as N 6/15/2022 6/21/2022 6 28 OK
TW4-70 Chloride 6/16/2022 6/24/2022 8 28 OK
TW4-70 Carbon Tetrachloride 6/16/2022 6/25/2022 9 14 OK
TW4-70 Chloroform 6/16/2022 6/25/2022 9 14 OK
TW4-70 Chloromethane 6/16/2022 6/25/2022 9 14 OK
TW4-70 Methylene Chloride 6/16/2022 6/25/2022 9 14 OK
TW4-70 Nitrate + Nitrite as N 6/16/2022 6/27/2022 11 28 OK
TW4-75 Chloride 6/22/2022 7/1/2022 9 28 OK
TW4-75 Carbon Tetrachloride 6/22/2022 6/30/2022 8 14 OK
TW4-75 Chloroform 6/22/2022 6/30/2022 8 14 OK
TW4-75 Chloromethane 6/22/2022 6/30/2022 8 14 OK
TW4-75 Methylene Chloride 6/22/2022 6/30/2022 8 14 OK
TW4-75 Nitrate+ Nitrite as N 6/22/2022 6/30/2022 8 28 OK
Table 1-3 Recipt Temperature Check
Sample Batch Wells in Batch Temperature
22El499 MW-32, Trip Blank 0.9°C
MW-04, TW4-01, TW4-02, TW4-04, TW4-l l, MW-26, TW4-19, TW4-21 ,
22F0972 TW4-22, TW4-24, TW4-25, TW4-37, TW4-39, TW4-40, TW4-41, TW4-60, l.4°C
Trip Blank
TW4-03, TW4-03R, TW4-05, TW4-06, TW4-08, TW4-12, TW4-13, TW4-14,
22F1630 TW4-23, TW4-27, TW4-28, TW4-31, TW4-32, TW4-34, TW4-35, TW4-36, 0.3°C
TW4-38, TW4-42, TW4-43, TW4-65, TW4-70, Trip Blank
22F2I0l TW4-07, TW4-09, TW4-09R, TW4-I0, TW4-16, TW4-18, TW4-26, TW4-29, 2.3 'C TW4-30, TW4-33, TW4-75, Trip Blank
1-4 Analytical Method Check
Parameter Method Method Used by Lab
SW8260B,
Carbon Tetrachloride SW8260C or SW8260D
SW8260D
A4500-CI B or
Chloride A4500-CI 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. l or E353.2 E353.2
All parameters were analyzed using the reporting method specificied in the QAP
-eporlm_g 1m1t ec I 5 R L .. Ch k
Lab
Reporting Dilution Required
Location Analyte Limit Units Qualifier Factor Reporting Limit RLCheck
Trip Blank Carbon Tetrachloride 1 ug/L u 1 1 OK
Trip Blank Chloroform I ug/L u 1 1 OK
Trip Blank Ch loromethane I ug/L u I I OK
Trip Blank Methylene Chloride 1 ug/L u I I OK
Trip Blank Carbon Tetrachloride I ug/L u I 1 OK
Trip Blank Chloroform I ug/L u I 1 OK
Trip Blank Chloromethane I ug/L u 1 I OK
Trip Blank Methylene Chloride 1 ug/L u 1 1 OK
Trip Blank Carbon Tetrachloride I ug/L u I I OK
Trip Blank Chloroform 1 ug/L u 1 1 OK
Trip Blank Chloromethane 1 ug/L u 1 1 OK
Trip Blank Methylene Chloride I ug/L u 1 1 OK
Trip Blank Carbon Tetrachloride 1 ug/L u 1 1 OK
Trip Blank Chloroform 1 ug/L u I 1 OK
Trip Blank Chloromethane 1 ug/L u 1 I OK
Trip Blank Methylene Chloride 1 ug/L u 1 I OK
MW-04 Chloride l mg/L I 1 OK
MW-04 Carbon Tetrachloride l ug/L u I 1 OK
MW-04 Chloroform 100 ug/L 100 1 OK
MW-04 Chloromethane 1 ug/L 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 Chloride I mg/L 1 1 OK
TW4-0l Carbon Tetrachloride 1 ug/L u 1 I OK
TW4-0l Chloroform 100 ug/L 100 l OK
TW4-0l Chloromethane 1 ug/L u I l OK
TW4-0l Methylene Chloride 1 ug/L u 1 1 OK
TW4-01 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-02 Chloride 1 mg/L 1 1 OK
TW4-02 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-02 Chloroform 100 ug/L 100 1 OK
TW4-02 Chloromethane 1 ug/L u 1 1 OK
TW4-02 Methylene Chloride 1 ug/L u 1 1 OK
TW4-02 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-03 Chloride 1 mg/L 1 1 OK
TW4-03 Carbon Tetrachloride 1 ug/L u I 1 OK
TW4-03 Chloroform 1 ug/L u I 1 OK
TW4-03 Chloromethane 1 ug/L u I 1 OK
TW4-03 Methylene Chloride 1 ug/L u 1 1 OK
TW4-03 Nitrate + Nitrite as N 0.2 mg/L 2 0.1 OK
TW4-03R Chloride 1 mg/L u 1 1 OK
TW4-03R Carbon Tetrachloride 1 ug/L u I 1 OK
TW4-03R Chloroform 1 ug/L 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 Chloride 1 mg/L 1 1 OK
TW4-04 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-04 Chloroform 100 ug/L 100 I OK
TW4-04 Chloromethane I ug/L u 1 I OK
TW4-04 Methylene Chloride 1 ug/L u I I OK
TW4-04 Nitrate + Nitrite as N 0.2 mg/L 2 0.1 OK
TW4-05 Chloride I mg/L I I OK
TW4-05 Carbon Tetrachloride 1 ug/L u 1 1 OK
I 5 R -epor11n.~ 1m1t ec L .. Ch k
Lab
Reporting Dilution Required
Location Analvte Limit Units Qualifier Factor Reporting Limit RLCheck
TW4-05 Chloroform 1 ug/L 1 1 OK
TW4-05 Chloromethane I ug/L u I 1 OK
TW4-05 Methylene Chloride I ug/L u 1 1 OK
TW4-05 Nitrate+ Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-06 Chloride 1 mg/L 1 1 OK
TW4-06 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-06 Chloroform 1 ug/L 1 1 OK
TW4-06 Chloromethane 1 ug/L u 1 1 OK
TW4-06 Methylene Chloride 1 ug/L u I I OK
TW4-06 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-07 Chloride 5 mg/L 5 1 OK
TW4-07 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-07 Chloroform 50 ug/L QM-4X 50 1 OK
TW4-07 Chloromethane 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 l 0.1 OK
TW4-08 Chloride 1 mg/L 1 1 OK
TW4-08 Carbon Tetrachloride 1 ug/L u l 1 OK
TW4-08 Chloroform 1 ug/L 1 l OK
TW4-08 Chloromethane 1 ug/L u I 1 OK
TW4-08 Methylene Chloride 1 ug/L u I 1 OK
TW4-08 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-09 Chloride 5 mg/L 5 1 OK
TW4-09 Carbon Tetrachloride 1 ug/L u I 1 OK
TW4-09 Chloroform 1 ug/L 1 I 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
TW4-09R Chloride 1 mg/L u I 1 OK
TW4-09R Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-09R Chloroform 1 ug/L 1 1 OK
TW4-09R Chloromethane 1 ug/L u l 1 OK
TW4-09R Methylene Chloride 1 ug/L u I 1 OK
TW4-09R Nitrate+ Nitrite as N 0.1 mg/L u 1 0.1 OK
TW4-10 Chloride 5 mg/L 5 1 OK
TW4-10 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-10 Chloroform 50 ug/L 50 1 OK
TW4-10 Chloromethane l ug/L u l l OK
TW4-10 Methylene Chloride 1 ug/L u I 1 OK
TW4-10 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-l l Chloride 1 mg/L 1 l OK
TW4-l l Carbon Tetrachloride 1 ug/L 1 1 OK
TW4-11 Chloroform 100 ug/L 100 1 OK
TW4-11 Chloromethane 1 ug/L 1 1 OK
TW4-l l Methylene Chloride 1 ug/L u l 1 OK
TW4-ll Nitrate + Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-12 Chloride 1 mg/L 1 1 OK
TW4-12 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-12 Chloroform 1 ug/L u l I OK
TW4-12 Chloromethane 1 ug/L u 1 1 OK
TW4-12 Methylene Chloride I ug/L u l 1 OK
TW4-12 Nitrate + Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-13 Chloride 1 mg/L 1 1 OK
TW4-13 Carbon Tetrachloride 1 ug/L u I I OK
-eportrng 1m1t ec I 5 R L .. Ch k
Lab
Reporting Dilution Required
Location Analyte Limit Units Qualifier Factor Reporting Limit RLCheck
TW4-13 Chloroform 1 ug/L u I 1 OK
TW4-13 Chloromethane 1 ug/L u I 1 OK
TW4-13 Methylene Chloride 1 ug/L u 1 1 OK
TW4-13 Nitrate + Nitrite as N 0.2 mg/L 2 0.1 OK
TW4-14 Chloride 1 mg/L I 1 OK
TW4-14 Carbon Tetrachloride l ug/L u 1 1 OK
TW4-14 Chloroform 1 ug/L 1 1 OK
TW4-14 Chloromethane I ug/L u 1 1 OK
TW4-14 Methylene Chloride 1 ug/L u I 1 OK
TW4-14 Nitrate + Nitrite as N 0.2 mg/L 2 0.1 OK
MW-26 Chloride 1 mg/L I 1 OK
MW-26 Carbon Tetrachloride 1 ug/L u l 1 OK
MW-26 Chloroform 100 ug/L 100 I OK
MW-26 Chloromethane 1 ug/L u 1 1 OK
MW-26 Methylene Chloride 1 ug/L u I 1 OK
MW-26 Nitrate + Nitrite as N 0.1 mg/L I 0.1 OK
TW4-16 Chloride 5 mg/L 5 1 OK
TW4-16 Carbon Tetrachloride 1 ug/L u l 1 OK
TW4-16 Chloroform 10 ug/L JO I OK
TW4-16 Chloromethane 1 ug/L u I I OK
TW4-16 Methylene Chloride 1 ug/L u I I OK
TW4-16 Nitrate + Nitrite as N 0.5 mg/L 5 0.1 OK
MW-32 Chloride I mg/L I I OK
MW-32 Carbon Tetrachloride 1 ug/L u 1 1 OK
MW-32 Chloroform I ug/L u I I OK
MW-32 Chloromethane 1 ug/L u I I 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 Chloride 5 mg/L 5 I OK
TW4-18 Carbon Tetrachloride l ug/L u l I OK
TW4-18 Chloroform 1 ug/L I I OK
TW4-18 Chloromethane I ug/L u 1 I OK
TW4-18 Methylene Chloride I ug/L u I 1 OK
TW4-18 Nitrate + Nitrite as N 0.2 mg/L 2 0.1 OK
TW4-19 Chloride 10 mg/L 10 I OK
TW4-19 Carbon Tetrachloride I ug/L 1 I OK
TW4-19 Chloroform 100 ug/L JOO 1 OK
TW4-19 Chloromethane 1 ug/L 1 1 OK
TW4-19 Methylene Chloride 1 ug/L u I 1 OK
TW4-19 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-21 Chloride 10 mg/L 10 1 OK
TW4-21 Carbon Tetrachloride 1 ug/L u I 1 OK
TW4-21 Chloroform 100 ug/L JOO 1 OK
TW4-2I Chloromethane 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 Chloride 10 mg/L 10 1 OK
TW4-22 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-22 Chloroform JOO ug/L JOO 1 OK
TW4-22 Chloromethane 1 ug/L 1 1 OK
TW4-22 Methylene Chloride 1 ug/L u 1 1 OK
TW4-22 Nitrate + Nitrite as N 2 mg/L 20 0.1 OK
TW4-23 Chloride 1 mg/L 1 1 OK
TW4-23 Carbon Tetrachloride 1 ug/L u 1 1 OK
-cpor1111g 1m1t ec I 5 R L' . Ch k
Lab
Reporting Dilution Required
Location Analvte Limit Units Qualifier Factor Reporting Limit RLCheck
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 1 0.1 OK
TW4-24 Chloride 100 mg/L 100 1 OK
TW4-24 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-24 Chloroform 10 ug/L 10 1 OK
TW4-24 Chloromethane 1 ug/L u 1 1 OK
TW4-24 Methylene Chloride I ug/L u l l OK
TW4-24 Nitrate + Nitrite as N 1 mg/L 10 0.1 OK
TW4-25 Chloride 1 mg/L I I OK
TW4-25 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-25 Chloroform 1 ug/L u 1 1 OK
TW4-25 Chloromethane 1 ug/L u 1 1 OK
TW4-25 Methylene Chloride 1 ug/L u 1 1 OK
TW4-25 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-26 Chloride 5 mg/L 5 1 OK
TW4-26 Carbon Tetrachloride I ug/L u 1 1 OK
TW4-26 Chloroform 100 ug/L 100 1 OK
TW4-26 Chloromethane 1 ug/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 Chloride 1 mg/L 1 1 OK
TW4-27 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-27 Chloroform 1 ug/L 1 1 OK
TW4-27 Chloromethane 1 ug/L u 1 1 OK
TW4-27 Methylene Chloride 1 ug/L u I 1 OK
TW4-27 Nitrate + Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-28 Chloride 1 mg/L I I OK
TW4-28 Carbon Tetrachloride 1 ug/L u 1 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 l 1 OK
TW4-28 Nitrate+ Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-29 Chloride 5 mg/L 5 1 OK
TW4-29 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-29 Chloroform 50 ug/L 50 1 OK
TW4-29 Chloromethane 1 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/L 1 0.1 OK
TW4-30 Chloride 5 mg/L 5 I OK
TW4-30 Carbon Tetrachloride 1 ug/L u 1 1 OK .
TW4-30 Chloroform 1 ug/L 1 1 OK
TW4-30 Chloromethane 1 ug/L u 1 1 OK
TW4-30 Methylene Chloride 1 ug/L u 1 1 OK
TW4-30 Nitrate+ Nitrite as N 0.2 mg/L 2 0.1 OK
TW4-31 Chloride 1 mg/L 1 1 OK
TW4-31 Carbon Tetrachloride 1 ug/L u 1 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/L 1 0.1 OK
TW4-32 Chloride 1 mg/L 1 1 OK
TW4-32 Carbon Tetrachloride 1 ug/L u I 1 OK
I 5 R -eporung 1m1t ec L' . Ch k
Lab
Reporting Dilution Required
Location Analyte Limit Units Qualifier Factor Reporting Limit RL Check
TW4-32 Chloroform 1 ug/L u I 1 OK
TW4-32 Chloromethane 1 ug/L u I I OK
TW4-32 Methylene Chloride 1 ug/L u 1 1 OK
TW4-32 Nitrate + Nitrite as N 0.2 mg/L 2 0.1 OK
TW4-33 Chloride 5 mg/L 5 I OK
TW4-33 Carbon Tetrachloride 1 ug/L u I I OK
TW4-33 Chloroform 1 u,g/L 1 l 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 0.2 mg/L 2 0.1 OK
TW4-34 Chloride 1 mg/L 1 1 OK
TW4-34 Carbon Tetrachloride 1 ug/L u I 1 OK
TW4-34 Chloroform 1 ug/L u 1 1 OK
TW4-34 Chloromethane 1 ug/L u 1 I OK
TW4-34 Methylene Chloride 1 ug/L u 1 1 OK
TW4-34 Nitrate + Nitrite as N 0.1 m,g/L 1 0.1 OK
TW4-35 Chloride 1 mg/L 1 1 OK
TW4-35 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-35 Chloroform 1 ug/L u 1 1 OK
TW4-35 Chloromethane 1 ui::/L u 1 I OK
TW4-35 Methylene Chloride 1 ug/L u 1 l OK
TW4-35 Nitrate+ Nitrite as N 0.1 mg/L l 0.1 OK
TW4-36 Chloride I mg/L I I OK
TW4-36 Carbon Tetrachloride 1 ug/L u 1 I OK
TW4-36 Chloroform I ug/L u 1 1 OK
TW4-36 Chloromethane 1 ug/L u 1 I OK
TW4-36 Methylene Chloride 1 ug/L u 1 1 OK
TW4-36 Nitrate + Nitrite as N 0.1 mg/L u 1 0.1 OK
TW4-37 Chloride 10 m,g/L 10 1 OK
TW4-37 Carbon Tetrachloride 1 ug/L 1 1 OK
TW4-37 Chloroform 1000 ug/L 1000 1 OK
TW4-37 Chloromethane 1 ug/L 1 1 OK
TW4-37 Methylene Chloride 1 ug/L u 1 1 OK
TW4-37 Nitrate + Nitrite as N 2 mg/L 20 0.1 OK
TW4-38 Chloride 1 mg/L I l OK
TW4-38 Carbon Tetrachloride 1 ug/L u 1 I OK
TW4-38 Chloroform 1 ug/L u 1 1 OK
TW4-38 Chloromethane 1 ug/L u 1 I OK
TW4-38 Methylene Chloride 1 ug/L u I l OK
TW4-38 Nitrate + Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-39 Chloride 1 mg/L 1 1 OK
TW4-39 Carbon Tetrachloride 1 ug/L u 1 I OK
TW4-39 Chloroform JOO ug/L 100 I OK
TW4-39 Chloromethane 1 ug/L 1 1 OK
TW4-39 Methylene Chloride 1 ug/L u 1 I OK
TW4-39 Nitrate + Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-40 Chloride 1 mg/L 1 I OK
TW4-40 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-40 Chloroform JOO u,g/L 100 1 OK
TW4-40 Chloromethane 1 ug/L u I I OK
TW4-40 Methylene Chloride 1 ug/L u 1 I OK
TW4-40 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-41 Chloride I mg/L I I OK
TW4-41 Carbon Tetrachloride 1 ug/L u 1 1 OK
I 5 R -eponrng 1mil ec L' . Ch k
Lab
Reporting Dilution Required
Location Analyte Limit Units Qualifier Factor Reporting Limit RLCheck
TW4-41 Chloroform 100 ug/L 100 I OK
TW4-4l Chloromethane l ug/L u I 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 Chloride 1 mg/L 1 1 OK
TW4-42 Carbon Tetrachloride I ug/L u 1 I OK
TW4-42 Chloroform 1 ug/L u 1 1 OK
TW4-42 Chloromethane 1 ug/L u I 1 OK
TW4-42 Methylene Chloride 1 ug/L u 1 I OK
TW4-42 Nitrate + Nitrite as N 0.2 mg/L 2 0. I OK
TW4-43 Chloride 1 mg/L I I OK
TW4-43 Carbon Tetrachloride I ug/L u 1 1 OK
TW4-43 Chloroform 1 ug/L u 1 I OK
TW4-43 Chloromethane 1 ug/L u 1 1 OK
TW4-43 Methylene Chloride 1 ug/L u I I OK
TW4-43 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-60 Chloride 1 mg/L u I 1 OK
TW4-60 Carbon Tetrachloride 1 ug/L u I I OK
TW4-60 Chloroform I ug/L u I I OK
TW4-60 Chloromethane I ug/L u 1 l OK
TW4-60 Methylene Chloride 1 ug/L u I I OK
TW4-60 Nitrate + Nitrite as N 0. I mg/L u 1 0.1 OK
TW4-65 Chloride I mg/L 1 1 OK
TW4-65 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-65 Chloroform 1 ug/L u 1 I OK
TW4-65 Chloromethane 1 ug/L u l I OK
TW4-65 Methylene Chloride 1 ug/L u 1 I OK
TW4-65 Nitrate + Nitrite as N 0.1 mg/L I 0. I OK
TW4-70 Chloride I mg/L 1 I OK
TW4-70 Carbon Tetrachloride I ug/L u I I OK
TW4-70 Chloroform I ug/L u l I OK
TW4-70 Chloromethane I ug/L u l 1 OK
TW4-70 Methylene Chloride 1 ug/L u I I OK
TW4-70 Nitrate + Nitrite as N 0.5 mg/L 5 0. I OK
TW4-75 Chloride 5 mg/L 5 I OK
TW4-75 Carbon Tetrachloride I ug/L u 1 1 OK
TW4-75 Chloroform 1 ug/L 1 I OK
TW4-75 Chloromethane 1 ug/L u 1 1 OK
TW4-75 Methylene Chloride 1 ug/L u 1 I OK
TW4-75 Nitrate+ Nitrite as N 0.1 mg/L I 0.1 OK
1-6 Trip Blank Evaluation
Lab Report Constituent Result
Carbon tetrachloride ND ug/L
22El499 Chloroform ND ug/L
Chloromethane ND ug/L
Methylene chloride ND ug/L
Carbon tetrachloride ND ug/L
22F0972 Chloroform ND ug/L
Chloromethane ND ug/L
Methylene chloride ND ug/L
Carbon tetrachloride ND ug/L
22Fl630 Chloroform ND ug/L
Ch loromethane ND ug/L
Methylene chloride ND ug/L
Carbon tetrachloride ND ug/L
22F2101 Chloroform ND ug/L
Chloromethane ND ug/L
Methylene chloride ND ug/L
1-7 QA/QC Evaluation for Sample Duplicates
Constituent
Chloride (mg/L)
Nitrate + Nitrite (as N)
Carbon Tetrachloride
Chloroform
Chloromethane
Dichloromethane (Methylene Chloride)
Constituent
Chloride (mg/L)
Nitrate+ Nitrite (as N)
Carbon Tetrachloride
Chloroform
Chloromethane
Dichloromethane (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
TW4-42
24.0
3.3
ND
ND
ND
ND
TW4-38
37.3
7.9
ND
ND
ND
ND
TW4-18
48.1
3.4
ND
62.9
ND
ND
TW4-65 %RPO
22.7 5.6
2.7 20.0
ND NC
ND NC
ND NC
ND NC
TW4-70 %RPO
33.7 10.1
8.20 3.7
ND NC
ND NC
ND NC
ND NC
TW4-75 %RPO
41.4 15.0
3.3 3.0
ND NC
53.2 16.7
ND NC
ND NC
I-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 Well Analyte %REC %REC
22El499 NIA NIA Nitrate 76.5 96.9
22El499 22El499-0J MW-32 Chloromethane 53.3 55.3
Carbon
22El499 22El499-01 MW-32 Tetrachloride 70.5 67.8
22F0972 NIA NIA Chloride 57.9 56.2
22F0972 NIA NIA Nitrate 79.2 95.1
22F0972 NIA NIA Chloroform* NC NC
22F0972 NIA NIA Chloromethane 62.1 73.8
22Fl630 22Fl630-15 TW4-23 Chloromethane 166 164
22F2l01 22F2101-09 TW4-07 Chloroform* NC NC
22Fl630 NIA NIA Chloromethane 68.4 61.5
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.
Lb a oratory C ontro IS amp.e
Lab Report Analyte LCS %REC REC Range
22E1499 Chi oromethane 65.8 70-130
22F1630 Chloromethane 165 70-130
22F2l01 Chloromethane 69.0 70-130
Surrogate % Recovery
All Surrogate recoveries were within acceptance limits for the quarter.
REC Range RPD RPDRange
80-120 2.26 20
70-130 1.79 20
70-130 3.9 20
80-120 0.377 20
80-120 5.79 20
70-130 NC 20
70-130 17.20 20
70-130 1.52 20
70-130 NC 20
70-130 10.60 20
I-9 Rinsate Evaluation
Rin ate
Rinsate Resul.t
Sample Parameter .(ug/L) Previou Well Purged
TW4-03R Chloroform 4.8 NA
TW4-09R Chloroform 7.3 TW4-08 (10.9 ug/L)
NA = This rinsate sample was collected prior to the first use of the pump.
TabJ
Kriged Current Quarter Chloroform Isoconcentration Map
t,l9 .,
MW4A
NS = not sampled; ND = not detected
...._70
TW4-43
~ND
TWN-21
[JNS
TW4-42
¢ND
MW-38
-¢-ND
MW-32
e ND
TW4-7
0 447
TWN-1
<)NS
PIEZ-1
Q 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 (not 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)
fllO .. MW,2~
.. I
,,
MY/"°1
'8ban0C)Jled-.. TWN-05
NS NS a O V TWN-20 :rwN-Q7
~
1 mile
'310 • MW-18
•IIMd!>tlltd 'O
lWN-10
NI) ,+ MW-40
ND • MW.22
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
chlorofonn 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 2nd QUARTER, 2022 CHLOROFORM (µg/L)
WHITE MESA SITE
APPROVED DATE REFERENCE FIGURE
H :/718000/aug22/chloroform/Uchl0622 .srf J-1
NS = not·sampled; ND = not detected
...._ 70
TW4-43
~D
TW4-42
¢ND
MW-32
e ND
TW4-7
0 447
PIEZ-2
~ NS
kriged chloroform isocon and label
temporary perched monitoring well
installed September, 2021 showing
concentration in µg/L
temporary perched monitoring well
installed April, 2019 showing
concentration in µg/L
perched monitoring well showing
concentration (µg/L)
temporary perched monitoring well
showing concentration (µg/L)
perched piezometer (not sampled)
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.
KRIGED 2nd QUARTER, 2022 CHLOROFORM (1,1g/L)
WHITE MESA SITE
APPROVED DATE
(detail map)
REFERENCE H:1718000/aug22/
chloroform/Uch10622det.srf
FIGURE
J-2
NS = not sampled; ND = not detected
...._ 70
TW4-43
~D
TW4-42
¢ND
MW-32
.ND
TW4-7
0 447
PIEZ-2
I;,) NS
kriged chloroform isocon and label
temporary perched monitoring well
installed September, 2021 showing
concentration in µg/L
temporary perched monitoring well
installed April, 2019 showing
concentration in µg/L
perched monitoring well showing
concentration (µg/L)
temporary perched monitoring well
showing concentration (µg/L)
i perched piezometer (not sampled)
NOTES: MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40and TW4-41 are
chloroform pumping wells; TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells
HYDRO
GEO
CHEM,INC.
2nd QUARTER, 2022 CHLOROFORM
GREATER THAN OR EQUAL TO 70 µg/L GRID
WHITE MESA SITE
APPROVED DATE REFERENCE H:/718000/aug22/
chloroform/Uchl0622ge70.srf
FIGURE
J-3
TabK
Analyte Concentration Data and Chloroform Concentration Trend Graphs over Time
Chloroform Carbo Chloromethane lene Nitrate Chtoride MW-4 (ug/1) TetmchloJ!ide (ug/1) Ch1or:ii (~ (mg/I) (~) (aw,'J~
28-Sep-99 6200
28-Sep-99 5820
28-Sep-99 6020
15-Mar-OO 5520
15-Mar-OO 5430
2-Sep-00 5420 9.63
30-Nov-OO 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
15-0ct-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 <l 6.3 47
27-Jun-07 2000 1.8 <1 <l 7 45
15-Aug-07 2600 1.9 <1 <l 6.2 47
10-0ct-07 2300 1.7 <1 <1 6.2 45
26-Mar-08 2400 1.7 <1 <l 5.8 42
25-Jun-08 2500 1.6 <l <1 6.09 42
10-Sep-08 1800 1.8 <l <1 6.36 35
15-0ct-08 2100 1.7 <l <l 5.86 45
4-Mar-09 2200 1.5 <l <l 5.7 37
23-Jun-09 1800 1.3 <l <1 5.2 34
14-Sep-09 2000 1.4 <l <l 5.3 43
CM · ufo11m Carbon ~ Metbr~ Nitrate Chloride MW-4 'Detracld&rid:e ~, llffltll\ tug/I) Olllorid'e (ugtr{t (mg()} ~mwt~
14-Dec-09 1800 1.6 ND ND 5.8 44
17-Feb-10 1600 1.2 ND ND 4 45
14-Jun-10 2100 1.2 ND ND 5.1 41
16-Aug-10 1900 1.5 ND ND 4.8 38
l l-Oct-10 1500 1.4 ND ND 4.9 41
23-Feb-l l 1700 1.5 ND ND 4.6 40
l-Jun-11 1700 1.4 ND ND 4.9 35
17-Aug-l l 1700 1.1 ND ND 4.9 41
16-Nov-ll 1600 1.3 ND ND 5.1 40
23-Jan-12 1500 I ND ND 4.8 41
6-Jun-12 1400 1.2 ND ND 4.9 39
4-Sep-12 1500 1.5 ND ND 5 41
4-0ct-12 1300 1 ND ND 4.8 42
l l-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
29-0ct-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
21-0ct-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
19-0ct-l 5 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
12-0ct-16 1470 1.24 ND ND 4.88 44.8
8-Mar-17 1450 1.22 ND ND 4.99 43.3
13-Jun-17 1430 1.15 ND ND 4.88 44.0
26-Jul-l 7 1400 1.15 ND ND 4.59 43.8
ll-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
28-0ct-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
Chlorofol'm Carbon Chloromethane Methylene Nitrate Chloride MW-4 Tetrachloride (ug/1} Cu-211) (ug/1~ Chloa,ide (ugl(> (mg!» (mw.l)
24-Aug-21 1140 ND ND ND 3.83 43.2
1-Dec-21 1100 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
0
Sep-99
Apr-00
Nov-00
Jun-01
Jan-02
Aug-02
Mar-03
Oct-03
May-04
Dec-04
Jul-05
Feb-06
Sep-06
Apr-07
Nov-07
Jun-08
Jan-09
Aug-09
Mar-10
Oct-10
May-11
Dec-11
Jul-12
Feb-13
Sep-13
Apr-14
Nov-14
Jun-15
Jan-16
Aug-16
Mar-17
Oct-17
May-18
Dec-18
Jul-19
Feb-20
Sep-20
Apr-21
Nov-21
_.
0 0 0
I\:> 0 0 0
(ug/L)
w 0 0 0
.i::,.
0 0 0
01 0 0 0
CJ)
0 0 0
-...J 0 0 0
s:: ~ ~ I 0
~
0 a 0
""" 3
~
C
CD (J)
Carbon . i
Chi:cirGfor I Metb~ e
1 iimiate ChfOTide TW4-1 !l". m ne
f~) 'fe.tl'.aebleri .':ufA) Chlori e .mgt,l~ (mg/I) (ug(A~ I (~}
28-Jun-99 1700 7.2
IO-Nov-99 5.8
15-Mar-OO 1100
10-Apr-OO 1490
6-Jun-00 1530
2-Sep-00 2320 5.58
30-Nov-OO 3440 7.79
29-Mar-01 2340 7.15
22-Jun-Ol 6000 8.81
20-Sep-Ol 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
1-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 <l 9.4 47
28-Feb-07 1900 1.2 <1 <1 8.9 47
27-Jun-07 1900 1.4 <1 <l 9 45
15-Aug-07 2300 1.3 <1 <l 8.4 43
10-0ct-07 2000 1.3 <1 <1 7.8 43
26-Mar-08 2000 1.3 <1 <l 7.6 39
25-Jun-08 1900 1.1 <1 <1 8.68 39
10-Sep-08 1700 1.3 <1 <l 8.15 35
15-0ct-08 1700 1.3 <1 <1 9.3 41
C::ldorof,onn Culi,,0n Chlor8:me:tb ne M atyl e krate ide
I 'JW4-.I (ugA) 'l'etiiacl\Iodde ~) Chlorid (mg!!) (~ tu.wit) (u:gR) II ' l 1-Mar-09 1700 1.1 <1 <1 7.5 37
24-Jun-09 1500 1 <1 <1 6.9 37
15-Sep-09 1700 <I <l <1 7.3 36
29-Dec-09 1400 <1 <1 <l 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 <l 6.8 35
14-0ct-10 1500 <1 <l <l 6.6 40
24-Feb-l l 1300 ND ND ND 6.6 41
l-Jun-11 1200 ND ND ND 7 35
18-Aug-l l 1300 ND ND ND 6.8 36
29-Nov-l 1 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
4-0ct-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
29-0ct-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
19-0ct-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
13-0ct-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
11-0ct-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
LI
Chlc;,rofo.rm Carbon Ch:toro:methane Metlt~ne ,Nitrate CJilodlte TW4-1 (ug/1~ Tetrachloride (sg/f) Cldoride {mg/I) (mg/I~ (u;JJ.P (ug,f)
22-0ct-18 752 ND ND ND 4.57 43.2
8-Mar-19 87.2 ND ND ND 4.51 40.9
5-Jun-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
28-0ct-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
0
......
0 0 0
I\)
0 0 0
(ug/L)
c.v 0 0 0
~ 0 0 0
0,
0 0 0
O> 0 0 0
--.J 0 0 0
28-Jun-99 t_; I • I /I I I I I
28-Jan-OO
28-Aug-OO
28-Mar-01
28-0ct-01
28-May-02
28-Dec-02
28-Jul-03
28-Feb-04
28-Sep-04
28-Apr-05
28-Nov-05
28-Jun-06
28-Jan-07
28-Aug-07
28-Mar-08
28-0ct-08
28-May-09
28-Dec-09
28-Jul-10
28-Feb-11
30-Sep-11
30-Apr-12
30-Nov-12
30-Jun-13
31-Jan-14
31-Aug-14
31-Mar-15
31-0ct-15
31-May-16
31-Dec-16
31-Jul-17
28-Feb-18 r-
30-Sep-18 -
30-Apr-19 ~a,:::::: / J..
30-Nov-19
30-Jun-20
31-Jan-21
31-Aug-21
31-Mar-22 L---1._._ __ __J...__ __ ....1-__ __. ___ ...__ __ ___._ __ ___,
i I ....
(')
:T
0 a -0 ..,
3
~
i: CD tn
Chloret'M"m Cal'ban Odwom fltane -~tbyl Nitr Chbwi , TW.4-2 1'.etraclnride ClifflJrid'e
'
(~,
(tmA) (u,gAJ €.ue/;l). (mg}I} ~Jl)
10-Nov-99 2510
2-Sep-00 5220
28-Nov-OO 4220 10.7
29-Mar-Ol 3890 10.2
22-Jun-Ol 5500 9.67
20-Sep-Ol 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 <1 <l 7.6 55
28-Feb-07 2900 1.8 <1 <l 7.3 54
27-Jun-07 3000 2.5 <1 <l 7.8 50
15-Aug-07 340 2.2 <l <l 7.3 49
10-0ct-07 3200 2.1 <l <l 6.9 51
26-Mar-08 3300 2.3 <l <l 6.9 48
25-Jun-08 3100 2.2 <l <l 7.44 46
10-Sep-08 2800 2.4 <l <l 7.1 42
15-0ct-08 3200 2.4 <2 <2 7.99 47
l l-Mar-09 3100 2.2 <l <1 6.5 46
24-Jun-09 2800 2 <l <1 6.4 44
15-Sep-09 3000 2 <l <1 6.6 43
29-Dec-09 1600 2 <l <1 6.4 46
~-Metlt)rJ n:e I ' CMerof8ffll khmt1 b;au i -, €Moritle TW4-2 'EtJmiddtJ de .C'_:__._ :;::_ ,.., .... ...!--
'{~ ,{~. {u~~ {ll~ gA r w~
3-Mar-10 2600 2 <l <l 6.8 42
15-Jun-10 3300 2.6 <l <l 6.7 43
16-Aug-10 3300 2.5 <l <l 6.6 43
14-0ct-10 3000 2.1 <l <I 6.5 41
24-Feb-l l 3100 2.4 ND ND 7 46
2-Jun-11 3000 2.2 ND ND 6.8 42
17-Aug-1 l 2400 1.6 ND ND 6 48
29-Nov-l l 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
4-0ct-12 3100 2 ND ND 7.6 49
13-Feb-13 3580 5.17 ND ND 8.1 46
l 9-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
30-0ct-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 48.1
3 l-Aug-15 1310 ND ND ND 3.76 50.0
19-0ct-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
12-0ct-16 1600 ND ND ND 6.07 44.3
8-Mar-17 1570 ND ND ND 4.74 43.1
13-Jun-17 1940 ND ND ND 4.90 43.6
26-Jul-17 1310 ND ND ND 5.08 43.2
l 1-0ct-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 I
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 C•&:on Oblor&.ntethane Methylene Nitrate 11'Chloride I TW4-2 Tetradtm ide Chloride (ugJI) foeft.) (ugft) (rur/l} (mg/t) (mgll)
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
28-0ct-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
1-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
0
.....
0 0 0
N 0 0 0
(ug/L)
w 0 0 0
.i,.. 0 0 0
0,
0 0 0
0:,
0 0 0
-...J 0 0 0
10-Nov-99 +----+----+--._=-t------t------.+----+----;
10-May-OO
10-Nov-OO -
10-May-01
10-Nov-01
10-May-02
10-Nov-02
10-May-03
10-Nov-03
10-May-04
10-Nov-04
10-May-05
10-Nov-05
10-May-06
10-Nov-06
10-May-07
10-Nov-07
10-May-08
10-Nov-08
10-May-09
10-Nov-09
10-May-10
10-Nov-10
10-May-11
10-Nov-11
10-May-12
10-Nov-12
10-May-13
10-Nov-13
10-May-14
10-Nov-14
10-May-15
10-Nov-15
10-May-16
10-Nov-16
10-May-17
10-Nov-17
10-May-18
10-Nov-18
10-May-19
10-Nov-19
10-May-20
10-Nov-20
10-May-21
10-Nov-21
~°' ~o o cO-ro-D> gQ-<"~ni
:Jaco"'Cl _o:J""'O Dl .-:i a. a -· C) '<. <D O ;:!. oco-,-,-,, -.=l<»'<ro 0 U> ... "'Cl Q.-.3mro _..:JD>cU> 9~m1if~
C) 0.. -g o.-t~
!l!. ~ ffi C) 0. 0 CD,-+<~ ::!. 0 Dl <D :J -U>
(C ~ "'Cl :;. en· g
<D 0. U>
1 O-May-22 -L----4-L----'-----L.----__._ ___ .,L__ __ --L---....1
-t
== ~ I N
0 :T
0 ~ a 0 ~ 3
< !..
C: C1)
Cl)
C,blorafbmi Cru•m,11, Chlorom~1irme e hyl Nitrate CM:0ride TW4-3 f'Q fl) 'fe~acht•i* (ng,l! Cllllmde (mgtl) tm t) ,fu2t.O (n,d]) -
28-Jun-99 3500 7.6
29-Nov-99 702
15-Mar-OO 834
2-Sep-00 836 1.56
29-Nov-OO 836 1.97
27-Mar-Ol 347 1.85
21-Jun-Ol 390 2.61
20-Sep-Ol 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 <1 6.4 <l 3.5 NA
l-Dec-05 <1 <1 2.3 <1 3.3 NA
9-Mar-06 <1 <l 2.2 <l 3.3 26
14-Jun-06 <1 <l <l <1 3.2 26
20-Jul-06 <1 <l 1.6 <l 2.9 26
8-Nov-06 <1 <l <l <l 1.5 23
28-Feb-07 <1 <l <l <l 3.1 22
27-Jun-07 <1 <l <l <l 3.3 23
15-Aug-07 <l <1 <1 <l 3.1 24
10-0ct-07 <1 <1 <l <l 2.8 27
26-Mar-08 <l <1 <1 <1 2.8 21
25-Jun-08 <l <l <1 <l 2.85 19
10-Sep-08 <l <l <1 <l 2.66 19
15-0ct-08 <l <1 <l <l 2.63 22
4-Mar-09 <1 <1 <l <l 2.5 21
24-Jun-09 <l <1 <l <l 2.9 20
15-Sep-09 <l <1 <1 <1 2.8 21
16-Dec-09 <1 <1 <1 <1 2.5 22
23-Feb-10 <l <1 <1 <1 2.8 23
,,
Cm·b .' Metb!hme ,,
T\V4..3 t)bl!oMf@.rm ff ell :calDridc, €1:rJORllleth ne <Chfolid Nitrate Cltkmde
t g«) (ngli) (u~ '(,u;11JJ) (mg/I) ( ~).
8-Jun-10 <1 <l <1 <1 3 24
10-Aug-10 <l <l <I <1 3.1 22
5-0ct-10 <l <l <I <l 3.3 26
15-Feb-l l ND ND ND ND 3.5 23
25-May-l l ND ND ND ND 3.7 23
16-Aug-11 ND ND ND ND 4 23
15-Nov-l 1 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-12 ND ND ND ND 4.9 25
3-0ct-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 24.1
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
23-0ct-14 ND ND ND ND 6.07 26.7
l l-Mar-15 ND ND ND ND 6.64 26.2
10-Jun-15 ND ND ND ND 5.71 27.5
2-Sep-15 ND ND ND ND 3.88 27.4
21-0ct-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
19-0ct-16 ND ND ND ND 6.00 29.5
14-Mar-17 ND ND ND ND 6.18 28.1
14-Jun-17 ND ND ND ND 6.36 28.7
27-Jul-17 ND ND ND ND 6.36 28.5
10-0ct-17 ND ND ND ND 6.32 25.9
14-Mar-18 ND ND ND ND 6.46 29.8
12-Jun-l 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
10-Jun-20 ND ND ND ND 6.53 26.2
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW14.3 (ug/0 'l'.'etrachloride (Ugtl) €Jhlolilide (mg/I) (mg/.J) (ui?/1) (owl)
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 6.19 28.4
15-Jun-21 ND ND ND ND 8.04 27.0
15-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
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
0
0
......
01 0 0 0 0 0
0 0
(ug/L)
...... I\) I\)
01 0 01 0 0 0 0 0 p
0 0 0
w
0 0 0
0
V, -· ::::s :::r n cu tD V,
S er cu tD
""I tD n :::::s
:::r -N tD co : ...
,...
:::r
tD
Q.
tD ,...
tD n ,... -· 0
:::I
w .is,. 01 0 0 0 0 0
0 0
-4 ~ I w
0 J
0 "'I 0 -0 "'I
3
< D)
C
Cl)
tn
C'al!'t.' ' Mef~en '
II ChlorofOtlffl\ Chotrontetlit!· Nlitr.atc Cltf@mle TW4-4 (ng:/Ai) , T tr, :chtQ id\\,. (ugll) chl\nd (~ (mg$1 (ue/1~ ~111!'1)
6-Jun-00 0
2-Sep-00 0
28-Nov-OO 3.9
28-Mar-01 2260 1.02
20-Jun-01 3100 14.5
20-Sep-01 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 12.1
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
l-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 IO.I 49
28-Feb-07 2200 1.5 <1 <1 9 49
27-Jun-07 2400 1.7 <1 <l 9.4 47
15-Aug-07 2700 1.5 <1 <1 9.5 45
10-0ct-07 2500 1.5 <1 <1 9.5 47
26-Mar-08 2800 1.6 <1 <l 9.2 43
25-Jun-08 2500 1.5 <1 <1 10.8 42
10-Sep-08 2200 1.4 <l <l 8.83 39
15-0ct-08 2500 2 <2 <2 10.1 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 <1 <1 8.4 39
29-Dec-09 950 1.1 <l <1 7.6 41
II Cavl,!m11 Met:hy,lene II CldorQfuffll Ch:t, 0mec u Ntitrat-e Chlorid
II TW4-4 ~ugffl, Tm d'bl:1id ~agft) htorule (mg/ii) (m~ II fad} (mell\
17-Feb-10 1700 1 <l <1 6.6 48
10-Jun-10 2000 1.2 <1 <l 7.6 35
16-Aug-IO 2100 1.3 <l <1 7.3 36
I 1-0ct-10 1700 1.3 <1 <1 7.1 38
23-Feb-l 1 1800 1.4 ND ND 7 41
l-Jun-11 1700 1.2 ND ND 7 35
17-Aug-11 1500 ND ND ND 6.6 40
16-Nov-11 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
3-0ct-12 1400 1 ND ND 7 38
11-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
29-0ct-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
l l-Aug-14 1320 ND 7 ND 5.30 40.0
21-0ct-14 1130 ND ND ND 7.02 40.0
9-Mar-15 1350 I 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
19-0ct-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
13-0ct-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
l l-Oct-17 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
Ca:rbo Mdh~ene ,,
Ohlorof0 m CWorome'.tthane Nitrate Chloride TW4-4 (ug/1) Tetr.acldori 2 (ugAI) Gbl~~de (mgll) (mg/I) (u:fd),) (uwll
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
28-0ct-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
1-Dec-21 950 ND ND ND 7.32 42.5
9-Mar-22 1010 ND ND ND 6.6 37.1
8-Jun-22 IllO ND ND ND 6.0 39.9
(ug/L)
...... ...... I\) I\) w w .i:,.. .i:,..
0, 0 0, 0 0, 0 0, 0 0, 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 -i I I I I • I / I ..
14-Jan-04
10-0ct-06
I I I I I ~ I I I I -t =E .,::a.
I .,::a.
0
6-Jul-09 ~ I I I +:::::ll I I I I I :::r 0
-,i
0 -0
-,i 3
1-Apr-12 i I I ~-I I I I I I I < D)
C: CD 0
27-Dec-14
22-Sep-17
18-Jun-20
15-Mar-23 ..,__ __ ..__ __ .__ _ __. __ __. __ __._ __ __._ __ __,_ __ _._ __ _.
I "' Oh'lor0fe,1·m C FIJ9D ,~ CJ!diel'rQ dhaf1e Med~Jlene Nitrate ChloJTide TW4-S Tetrnchl , ide Chloride I (ugf: (ugfl) (mgtl) Cmgtl) I (ulttl) (tt,d,IOi •
20-Dec-99 29.5
15-Mar-OO 49.0
2-Sep-00 124
29-Nov-OO 255
28-Mar-01 236
20-Jun-01 240
20-Sep-01 240
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 3.7 NA
31-Aug-05 82.0 <2.5 5.8 <2.5 6 NA
l-Dec-05 63.0 <2.5 2.5 <2.5 6 NA
9-Mar-06 66.0 <2.5 3.1 <2.5 6 52
14-Jun-06 51.0 <1 <2.5 <2.5 5.9 51
20-Jul-06 53.7 <1 <1 <l 6.7 54
8-Nov-06 47.1 <1 <1 <1 2.9 55
28-Feb-07 33.0 <1 <1 <1 7.8 57
27-Jun-07 26.0 <1 <l <1 7 45
15-Aug-07 9.2 <l <l <1 7.7 38
10-0ct-07 9.4 <l <l <l 8.2 39
26-Mar-08 11.0 <l <l <1 7.4 36
25-Jun-08 9.3 <1 <l <1 8.7 37
10-Sep-08 11.0 <1 <l <l 7.91 34
15-0ct-08 10.0 <l <1 <1 9.3 37
4-Mar-09 12.0 <l <l <1 7.9 34
24-Jun-09 13.0 <1 <l <1 7.5 37
15-Sep-09 12.0 <l <l <1 8.3 48
C~ef(i)f'ffl Cm~ Cldoir.-emdbane , Metlhyl'ffl Nitrate Cbl:o ide· TW4 .. 5 1'evadi'lorbl ~ide fug/,1) {lWffi talgfl) (~,J,a (mgUI) ~ git)
22-Dec-09 8.5 <1 <1 <1 7.5 41
25-Feb-10 13.0 <1 <l <l 6.8 43
9-Jun-10 12.0 <1 <1 <l 7.1 28
ll-Aug-10 12.0 <1 <1 <l 7 38
13-0ct-10 11.0 <l <1 <1 7.2 41
22-Feb-l l 10.0 ND ND ND 7 34
26-May-1 l 9.0 ND ND ND 7.2 35
17-Aug-I 1 10.0 ND ND ND 7.5 37
7-Dec-11 7.9 ND ND ND 6 30
18-Jan-12 7.6 ND ND ND 5.8 22
6-Jun-12 8.4 ND ND ND 8 39
I 1-Sep-12 12.0 ND ND ND 8.1 37
3-0ct-12 8.0 ND ND ND 7.7 38
13-Feb-13 10.8 ND ND ND 8.24 34.3
13-Jun-13 11.2 ND ND ND 10.7 36.5
5-Sep-13 11.6 ND ND ND 7.79 39.1
13-Nov-13 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 7.2 44
28-0ct-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 1.07 ND 7.08 47.3
3-Sep-15 12.9 ND ND ND 8.1 52.2
28-0ct-15 11.0 ND ND ND 8.03 43.6
17-Mar-16 11.0 ND ND ND 10.2 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
26-0ct-16 10.8 ND ND ND 8.32 47.8
15-Mar-17 12.6 ND ND ND 8.49 44.7
15-Jun-17 14.6 ND ND ND 8.52 47.3
2-Aug-17 14.6 ND ND ND 8.52 48.6
10-0ct-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 II ND ND 7.38 47.6
13-Jun-19 15.8 ND ND ND 7.62 49.3
Cadm Methylene j
Ohloro'form Chloromethane Njtr3te CJd'Qrlde TW4-5 (U:g/H Tetracldm-ide (ug/1} CJlloride (mg/I) ~01,g/f) (W!'/1) (ud)
11-Sep-19 14.6 ND ND ND 7.02 46.l
14-Dec-19 15.7 ND ND ND 6.97 53.1
17-Mar-20 14.8 ND ND ND 7.1 48.3
11-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 7.3 47.7
16-Jun-22 10.3 ND ND ND 7.1 40.7
0 01 0
.....
0 0
(ug/L)
.....
01 0
I\)
0 0
I\) 01 0
w 0 0
w 01 0
24-Jul-98 +---------1-----+-----+--------1------1
19-Apr-01
14-Jan-04
10-0ct-06
I Y I I/ I I I I I
06-Jul-09 -l t I I I I I I I I
01-Apr-12 -j 1 I/ I I I I I I
I i / I I I I I I I 27-Dec-14
22-Sep-17
18-Jun-20
15-Mar-23
09-Dec-25 ..L-----'-----'------'------'----__.._ ___ _,_ __ ___,
-I
== ~ I (JI
0 ::J"
0 "'I 0 -0 "'I
3
< e!.
C
(I)
(/)
Chloroform Carbon CMorometha e Methylene Nitrate Chloride TW4-6 (ugll) TetracM0ride (ug/1;) Chloride (mg/I) (mg/I) I (owl) Cue/I)· I
6-Jun-00 0
2-Sep-00 0
28-Nov-OO 0 ND
26-Mar-01 0 0.13
20-Jun-01 0 ND
20-Sep-Ol 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 <l <1 1.2 31
14-Jun-06 19.0 <1 <l <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
10-0ct-07 18.0 <1 <1 <I 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
15-0ct-08 37.0 <1 <1 <1 1.01 33
11-Mar-09 81.0 <1 <1 <1 2.2 35
24-Jun-09 120 <1 <1 <1 2.7 37
15-Sep-09 280 <1 <1 <1 5.0 37
22-Dec-09 250 <1 <1 <1 6.1 41
Chloroform Ca bo Obl@re -etiltane Metbyl Nitrate CMolide 1, TW4-6 (ug/1) TetFacb1lorid {uglt) Chi~ (mgR) (111'gffl {lll?tl) (ttldf}'
25-Feb-10 1000 <1 <1 <1 1.6 45
10-Jun-10 590 <1 <1 <1 2.5 33
12-Aug-10 630 <1 <1 <1 3.9 31
13-0ct-10 420 <1 <1 <1 4.3 41
23-Feb-l l 47 NU ND NlJ 0.7 40
Lb-May-11 10 NLJ NlJ NU 0.3 42
17-Aug-11 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
11-Sep-12 6.9 ND ND ND 0.1 21
3-0ct-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
29-0ct-14 723 ND ND ND 6.92 41.1
18-Mar-15 1180 ND ND ND 5.25 41.2
11-Jun-15 1040 ND ND ND 5.87 41.6
10-Sep-15 1040 ND ND ND 6.75 47.0
29-0ct-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
26-0ct-16 301 ND ND ND 3.74 46.1
16-Mar-17 288 ND ND ND 3.15 42.1
21-Jun-17 239 ND ND ND 2.42 42.6
3-Aug-17 129 ND ND ND 1.71 42.9
11-0ct-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 ChloFometbane Methylene Nitrate Chloride TW4-6 (ug/1) Tetrachloride (ug/1) Chloride (mgll) (mg/I~ (rue/I) (ue/1)
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
l 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 43.1
0
24-Jul-98
19-Apr-01 I
n
H • •
14-Jan-04
~
l
10-0ct-06
6-Jul-09
1-Apr-12 ~ • •
•
..__
~7-Dec-14
~2-Sep-17
18-Jun-20 ~ • •
• •
15-Mar-23
9-Dec-25
I\)
0 0
7 -
T
~ 0 0
-T
~ ......
I
~
0)
0 0
T-
(ug/L)
-T
co 0 0
-I -
......
0 0 0
T
......
I\)
0 0
,..
......
~ 0 0
i
I 0)
0 ::::r
0 ""I a 0 ""I 3
< D)
C: (I) en
Otnrtn ~l'ene .. I
TW41.7 ~ll't1fenn "Eewa~hlo1•ide Ch!l'<wem mane', , ;rl'tte. ,. Niil.nue •Cliari*
{ngr/J), (ng(,I) ,1 (Dl\lfA) (.mglt) II ,(.tm/,1} I h1,l!ID
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-Ol 1100 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 <1 <1 4.6 49
28-Feb-07 1800 1.1 <1 <1 5 47
27-Jun-07 2600 1.5 <1 <l 5.1 45
14-Aug-07 2300 1.4 <l <1 4.7 44
10-0ct-07 1900 1.2 <1 <l 4.7 45
26-Mar-08 2200 1.3 <l <1 4.2 43
25-Jun-08 1800 1.3 <1 <1 4.8 43
10-Sep-08 1600 1.4 <1 <l 4.16 35
15-0ct-08 1900 <2 <2 <2 4.01 40
1 l-Mar-09 1800 1.2 <1 <1 3.7 35
24-Jun-09 1400 <1 <1 <1 3.8 37
15-Sep-09 1500 1.0 <1 <1 4.1 37
tm OD ----lne
CM:o:J:1'0 Cklor~ " tt»Jlti OMo,fi
1, 4.7 (ugf,J) :eu 11'0 ih (ugpl Cid ude ~m:gA) ' gl, tmtA~ ·.· '(D,1'V) I
29-Dec-09 1300 <l <1 <1 4.2 37
3-Mar-10 1200 <l <l <1 3.8 36
10-Jun-10 1100 <l <1 <1 3.9 31
18-Aug-10 1500 1.1 <1 <1 3.9 36
13-0ct-10 1100 1.1 <1 <1 4 38
23-Feb-1 l 1300 ND ND ND 3.60 45
1-Jun-11 1200 ND ND ND 4.00 35
18-Aug-11 1200 ND ND ND 4.10 37
29-Nov-11 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
4-0ct-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
30-0ct-14 926 ND ND ND 3.68 40.2
18-Mar-15 942 ND ND ND 4.25 40.4
ll-Jun-15 950 ND ND ND 2.62 42.1
10-Sep-15 897 ND ND ND 4.72 46.7
29-0ct-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 44.1
4-Aug-16 1000 ND ND ND 4.21 42.3
27-0ct-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
11-0ct-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
Cblurefonn Cmi,cm CltloFwn-elkane M tbyilene Nitrate Ohlodd,,, 11 TW.4-7 Tetrackl&rld Chlbritle (ugfl) (u1?11'.) {ugA} (ud') fmg/1~ (mgf!\j
12-Sep-19 801 ND ND ND 3.76 39.7
18-Dec-19 546 ND ND ND 3.11 47.2
18-Mar-20 746 ND ND ND 3.75 42.1
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 41.7
23-Sep-21 801 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 4.1 41.3
22-Jun-22 447 ND ND ND 3.9 42.5
0
......
0 0 0
I\)
0 0 0
(ug/L)
w 0 0 0
~ 0 0 0
01 0 0 0
(J')
0 0 0
24-Jul-98 ---1------+-----1-----1-----+------t-----,
19-Apr-01
14-Jan-04
10-oct-06 I
I ~ I I I I
6-Jul-09-l I .-;r I I I I I
1-Apr-12 i ~ I I I I I I
I t.l / I I I I I ~7-Dec-14
~2-Sep-17
18-Jun-20
15-Mar-23
9-Dec-25 ....___ ___ __._ ____ .....__ ___ ___.. ____ ......... ____ .,__ ___ __,
-4 :e .i:i,
I -....I
0
':r
0 ...
0 -0 ...
3
< D)
C CD 0
OhioroF&rm OWJ,nn Chlo1 ~ lene< Nitr te Chlcnide TW4-8 Te ,a kleride um Cbb.>Ti • e (llgtl) I Catfl (mgjl) '(mg/I) (uek}} (qfflill
29-Nov-99 0
15-Mar-OO 21.8
2-Sep-00 102
29-Nov-OO 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 <l <1 <1 <1 <0.1 NA
9-Mar-06 1.3 <1 2.1 <1 0.3 39
14-Jun-06 1.0 <1 1.8 <l <0.1 37
20-Jul-06 <l <l <l <1 0.1 39
8-Nov-06 <l <l <l <1 <0.1 40
28-Feb-07 2.5 <1 <1 <1 0.7 39
27-Jun-07 2.5 <l <1 <1 0.2 42
15-Aug-07 1.5 <1 <1 <1 <0.1 42
10-0ct-07 3.5 <1 <1 <1 0.5 43
26-Mar-08 <1 <1 <1 <1 0.1 46
25-Jun-08 <1 <1 <1 <1 <0.05 45
10-Sep-08 <1 <l <1 <1 <0.05 39
15-0ct-08 <1 <1 <1 <1 <0.05 44
4-Mar-09 <1 <1 <1 <1 <0.1 42
24-Jun-09 <l <1 <1 <1 <0.1 44
15-Sep-09 <1 <1 <1 <1 <1 44
Chf{l)Nf<wffl CaitbQn Cldmr001eth l\iletli,ten Nitrate Cl1loride TW4 .. 8 (ug(I, TetraeM0rid (ugll} Chfcb.id (mg/I) '1 ungll? (ue"l} (,uf!lt)
17-Dec-09 <l <1 <l <1 <0.1 51
24-Feb-10 <l <1 <l <1 <0.1 57
9-Jun-10 <l <1 <1 <l <0.1 42
11-Aug-10 <1 <1 <1 <1 <0.1 45
5-0ct-10 <1 <1 <l <l <0.1 46
16-Feb-l l ND ND ND ND ND 52
25-May-l l ND ND ND ND 0.1 45
16-Aug-ll 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
3-0ct-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 46.1
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
29-0ct-14 191 ND ND ND 0.914 46.7
12-Mar-15 961 ND ND ND 2.34 49.6
ll-Jun-15 981 ND ND ND 1.88 53
IO-Sep-15 747 ND ND ND 1.96 59.6
29-0ct-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
27-0ct-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
l l-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
Chloiroform Carbon Chlorometbane Methyle ·e Nitrate Cb1orid TW4-8 TetracW.().ride Chloride hg/1) (ul!/t~ (ug/1) fuatl~ (mg/I) (mg/11
19-Jun-19 96.0 ND ND ND I.IO 56.5
12-Sep-l 9 75.4 ND ND ND 0.999 52.0
18-Dec-19 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
1 I-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
0
I\) 0 0
~ 0 0
(ug/L)
0) 0 0
CX) 0 0
......
0 0 0
......
I\) 0 0
24-Jul-98 +------1-----;-------i-----1-----1-----;
19-Apr-01
14-Jan-04
10-0ct-06 t I I I I I I I
6-Jul-09 t I I I I I I I
1-Apr-12 i I I I I I I
I lLJ I I I I I 27-Dec-14
22-Sep-17
18-Jun-20
15-Mar-23
9-Dec-25 _.__ ___ __._ ____ _.__ ___ __,_ ____ .,___ ___ _._ ___ ___,
-4 ~ .,::i.
I 0:,
0 :::r
0 ~ 0 -0 ~ 3
< SI)
C
(I)
t/)
Cl r@lorm Ca111fY Oltl-QJ"ome'tban Methy,len r:h'a1e Cbforide TW4-9 'fdracld~l!l·de Olai:oride '(ug/l) (uwl}) {ttgl,I) (11w!} fmgA) tm~ -
20-Dec-99 4.2
15-Mar-OO 1.9
2-Sep-00 14.2
29-Nov-00 39.4 ND
27-Mar-01 43.6 ND
20-Jun-01 59.0 0.15
20-Sep-Ol 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 <l 2.9 <1 1.3 NA
1-Dec-05 <1 <1 <1 <1 1.3 NA
9-Mar-06 <l <l 2.6 <1 1.5 38
14-Jun-06 <1 <l 2.7 <1 1.5 39
20-Jul-06 <l <l <1 <1 0.9 4 1
8-Nov-06 <l <l <1 <1 0.7 4.4
28-Feb-07 <l <1 <1 <1 0.6 44
27-Jun-07 21 <l <1 <1 1.3 42
15-Aug-07 9.5 <1 <l <1 1.8 38
10-0ct-07 8.7 <1 <1 <1 2 40
26-Mar-08 1.3 <1 <1 <l 2.1 35
25-Jun-08 1.0 <1 <1 <1 2.3 35
10-Sep-08 <1 <1 <l <1 2.79 28
15-0ct-08 <1 <l <I <1 1.99 58
4-Mar-09 <1 <1 <l <1 2.5 30
24-Jun-09 <1 <1 <1 <1 2.3 30
15-Sep-09 <1 <1 <1 <1 2.5 30
eJ•c Ol'ffl.t Cub I•! eitb "dhylen·e· Nitrate Cbhmle 1, T 4-9 Tetraclllo11hle Q,r: e Cltlm:W
[I
{.ti) ,tu;gfil.) (uwf) (n9'1) (m~ ( g/J)
17-Dec-09 <1 <1 <1 <1 1.7 37
23-Feb-10 <l <1 <1 <1 1.7 47
9-Jun-10 <1 <1 <1 <1 1.5 33
11-Aug-10 <1 <l <l <1 1.2 40
6-0ct-10 <1 <1 <l <1 1.8 34
17-Feb-11 ND ND ND ND 1.3 41
25-May-11 ND ND ND ND 3.4 38
16-Aug-l l ND ND ND ND 4 21
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
3-0ct-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
29-0ct-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
28-0ct-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
26-0ct-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-17 118 ND ND ND 1.90 37.0
1 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 1.04 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
II Chlo1i0foFm Carbon Chlor:omethane Methylene Nitrate Chloride TW4-9 (ug/1) 'feirachloride (ug/1) Chloride tmg/1) (mg/l) Cue/I) (uw'J)
l l-Sep-19 66.0 ND ND ND 0.904 35.2
18-Dec-19 54.8 ND ND ND 0.744 40.1
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
1 l-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
0
f\)
0
.I>,.
0
0)
0
0)
0
(ug/L)
....
0 0
....
f\)
0
......
.I>,.
0
0)
0
....
0)
0
24-Jul-98 +----------1-----,1----+---+----+-----+----!
19-Apr-01
14-Jan-04
10-0ct-06
tr=+\ I I I I I I I I
6-Jul-09 t I \ I I I I I I I I
1-Apr-12 i I \I I I I I I I I
I I J... I I I I 27-Dec-14
22-Sep-17
18-Jun-20
15-Mar-23
9-Dec-25 ...__ __ _._ __ _.__ __ _.__ __ _._ __ _._ __ _._ __ _.._ __ __._ __ __.
-t :e .i::,. I
CD
0 :::r
0 "'I 0 -0
"'I 3
< Cl)
C
(D en
CM0roit0Fm ~.I £ib)ot'O haine Metb,.lene Nitrate Old&mle TW4-10 'f eb'aehloride Chforide (uglt) (Wlitlf (u~) (oo/,1) pgt,1) (m~
21-Jan-02 I4
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
l-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 <l <1 1 5.1 54
15-Aug-07 660 <l <1 I 7.3 59
10-0ct-07 470 <1 <1 1 6.7 59
26-Mar-08 620 <1 <l 1 7.3 55
25-Jun-08 720 <1 <l 1 9.91 58
10-Sep-08 680 <1 <l 1 9.23 51
15-0ct-08 1200 <2 <2 2 10.5 61
11-Mar-09 1100 <1 <1 1 11.6 64
24-Jun-09 1200 <1 <1 I 9.8 62
15-Sep-09 910 <1 <l I 8.1 51
22-Dec-09 300 <1 <1 <1 3.5 51
3-Mar-10 460 <1 <1 <l 5 49
10-Jun-10 220 <1 <l <l 1.6 42
12-Aug-10 100 <1 <1 <1 0.8 38
13-0ct-10 1100 <1 <1 <l 11 52
23-Feb-l 1 620 ND ND ND 9 62
l-Jun-11 280 ND ND ND 3.3 42
Oh PQ 8'A'D Ciwb(!)ll Cklot•, ethane ;l'e1ihyle e 'llrate klcwid TW4-t'O (ogM!) 'fretr>addm.·ide ( gH) ,id ~m-} (mg,<I} (l1W}), £ueJI!),
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
3-0ct-12 140 ND ND ND 1.6 45
13-Feb-13 154 ND ND ND 1.2 49.1
13-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
30-0ct-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 11.4 75
10-Sep-15 1280 ND ND ND 14.0 89.5
29-0ct-15 1350 ND ND ND 13.5 79.9
22-Mar-16 1430 ND ND ND 17.3 84.1
8-Jun-16 1510 ND ND ND 14.9 89.5
4-Aug-16 1500 ND ND ND 14.9 85.3
27-0ct-16 1290 ND ND ND 14.8 84.4
21-Mar-17 1260 ND ND ND 13.0 74.6
21-Jun-17 1140 ND ND ND 13.0 73.1
4-Aug-17 1320 ND ND ND 13.4 77.0
l 1-0ct-17 1150 ND ND ND 12.9 70.0
21-Mar-18 1240 ND ND ND 11.1 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 ND 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
l 1-Nov-20 903 ND ND ND 8.69 58.6
24-Mar-21 718 ND ND ND 7.20 58.1
'Chloroform C.arbon Chloromethane Methylen.e Nitrati Chlol'ide TW4-10 tug/I) Tetrachloride (ugtl) Ohloride w (mgm (mg/I) ,, (ul!II) (osrtl)
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 1 ND 5.1 49.0
22-Jun-22 342 ND ND ND 4.6 46.0
0
I\)
0 0
.i,.
0 0
(ug/L)
(j)
0 0
():)
0 0
0 0 0
_.
I\)
0 0
_.
.i,.
0 0
_.
(j) 0 0
24-Jul-98 -+---+---+----+-----1------1-----+-----+----1
19-Apr-01
14-Jan-04
10-0ct-06
I I ...\:::::! I • I I I I I
6-Jul-09 -I I I \ I I • I ===-t I I
1-Apr-12 -I l I I I \ I I I I I
I I I I \I I .,c: I. I I 27-Dec-14
22-Sep-17
18-Jun-20
15-Mar-23
9-Dec-25 _,__ __ _,_ ___ .,__ __ ....._ __ ---' ___ ....__ __ _,_ ___ ..__ __ _.
-t =E .,::.
I ....
0
0 ::::r
0 ""' 0 -0 ""' 3
< !!. C (D en
-C ho I Chi CWox Nitrate Chlo1~e TW4-11 o.rm Tetr:adtloride, th n ~I ffltyfen.e
< g(1
I {llg~, ide(~gS) (mg/J) I ~mgt,li) (~ '
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
1-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 <1 1.1 10.2 53
10-0ct-07 4400 1.6 <1 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
15-0ct-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 <1 <1 <1 6.6 46
3-Mar-10 820 <1 <1 <1 6.8 42
10-Jun-10 820 <1 <1 <1 6.9 40
12-Aug-10 800 <1 <1 <1 6.7 43
13-0ct-10 720 <1 <1 <1 6.4 49
23-Feb-l 1 1000 ND ND ND 6.5 46
l-Jun-11 930 ND ND ND 7.3 49
e!!!~$1'0Tft CaPhon" ....i:: • 'h , e Mieth hme Nitrate Orltmi TW'4-U Tetm iml.arld.e •.
{ugl (.oeJI) ~ Cltl) ~ide €u@R) (mg{d) (mg,ll}
17-Aug-11 820 ND ND ND 7.1 48
16-Nov-11 1500 ND ND ND 7.1 46
24-Jan-12 610 ND ND ND 6.8 43
13-Jun-12 660 ND ND ND 6.7 52
13-Sep-12 740 ND ND ND 3 49
4-0ct-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
12-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
29-0ct-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.I
19-0ct-15 2730 ND ND ND 7.5 55.3
9-Mar-16 2660 1.2 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
12-0ct-16 3180 1.58 ND ND 8.92 57.2
8-Mar-17 3310 1.71 ND ND 8.12 49.8
13-Jun-l 7 3370 1.83 ND ND 7.92 51.4
26-Jul-17 3290 1.81 ND ND 7.78 51.0
11-0ct-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 -Sl.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
28-0ct-20 2670 ND 3.86 ND 7.19 43.3
23-Feb-21 ·2750 ND 3.86 ND 7.21 49.5
11 Carbon
'-tW4-11 C.hlorofotm Tetrachlo11'ide Cbloromethane Meth lene !Nitrate Chloride
(ug/1) (ug/1) ~ugll) Chloride (ug/1) (mg/I~ (mg/])
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
u,
Cl)
:::s
ca >
E I.,
0 -0 I.,
.2 .c (.)
T""
T"" I --=:t' 3: I-
0 0 12
0 0 0 <D
0 0 0 L{)
0 0 0 '<:I"
0 0 0 ('I")
(1J6n)
0 0 0 C\J
0 0 0 .,....
0
oi-unr-s~
L~-das-ii
v~-oaa-a
c ~ -JdV-~
50-1nr-9
90-PO-O~
vo-uer-v~
~Q-Jd'v'-6 ~
cw Cairb.cm Chlof'omeffian 1'tefibt,ilene M Olithmde TW4-12 • m Tetraebl&ride ~ride (ugll~ (~ (mgA) ! (~
If (uwn f~
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 <l <1 5.8 <1 1.5 NA
1-Dec-05 <1 <1 1.9 <2 1.4 NA
9-Mar-06 <l <1 2.6 <1 1.3 19
14-Jun-06 <1 <1 1.4 <1 1.4 16
20-Jul-06 <1 <1 <1 <1 1.4 16
8-Nov-06 <1 <1 <l <1 1.4 16
28-Feb-07 <l <1 <l <1 1.5 16
27-Jun-07 <l <1 <l <1 1,5 18
15-Aug-07 <l <1 <1 <1 1.4 29
10-0ct-07 <1 <1 <l <1 1.4 16
26-Mar-08 <1 <l <1 <1 1.6 16
25-Jun-08 <1 <l <1 <1 2.69 19
10-Sep-08 <1 <1 <l <1 2.65 18
15-0ct-08 <1 <1 <1 <1 2.47 22
4-Mar-09 <l <1 <1 <l 2.4 23
24-Jun-09 <l <1 <1 <1 3.8 22
15-Sep-09 <1 <1 <1 <1 5.1 22
16-Dec-09 <1 <1 <1 <1 3.6 23
23-Feb-10 <1 <1 <1 <1 4 22
8-Jun-10 <1 <1 <1 <1 11 29
10-Aug-10 <l <1 <1 <1 9 35
5-0ct-10 <1 <1 <1 <1 8 31
15-Feb-ll ND ND ND ND 6.5 31
25-May-ll ND ND ND ND 7 32
16-Aug-ll ND ND ND ND 6.8 31
15-Nov-l l ND ND ND ND 8 30
17-Jan-12 ND ND ND ND 7.7 28
Carh-on lbl?1 ' Cld-eref0-wm . , r.ametl\alte ,., k a.Jori• 4.12 (ug/t) T tr cltt~ ' togfiJ) Jwide (mw'A) (mgll)
i (,ootl:} (112f,1}
31-May-12 ND ND ND ND 10 34
29-Aug-12 ND ND ND ND 13 39
3-0ct-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 41.7
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
23-0ct-14 ND ND ND ND 16.1 50.2
11-Mar-15 ND ND ND ND 19.2 50.6
IO-Jun-15 ND ND ND ND 18.8 56
2-Sep-15 ND ND ND ND 16.4 60.2
21-0ct-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
19-0ct-16 ND ND ND ND 25.8 72.6
14-Mar-17 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
10-0ct-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
l l-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
IO-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 II TW4-l2 Tetrachloride ChlorJde 11 (ug/1) (ug/1) (mg/I) (mg/I) (ueill (ue/1)
15-Mar-22 ND ND ND ND 8.4 25.8
l5-Jun-22 ND ND ND ND 16.0 53.3
19-Apr-01
14-Jan-04
10-0ct-06
6-Jul-09
1-Apr-12
27-Dec-14
22-Sep-17
18-Jun-20
15-Mar-23
9-Dec-25
0
0
l
• I
1~ ·~
•
I ·~
: .~
:
I ·~ •
• l
• • l
j
•
• • • •
• u
• • j
•
0
CJ1
(ug/L)
......
0
-
T
......
u, [')
0
i I ..a.
N
0 J
0 ""I 2. 0 ""I 3
< !. C: (I) tn
nltoitm Car.bo altnM ,w ·--M~ CM iJ ' T . -13 I Tetra·dtfOO"ide C1itmide ~)
,,
{~ ( ) {mglf)
• I (i~~~-; tue1J·).
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 <1 NA NA NA 4.30 NA
31-Aug-05 <1 <l 3.1 <1 4.60 NA
l-Dec-05 <I <l <I <l 4.30 NA
9-Mar-06 <l <I 1.7 <l 4.20 67.0
14-Jun-06 <l <l 1.4 <l 4.90 66.0
20-Jul-06 <1 <l <l <l 4.30 65.0
8-Nov-06 <l <1 <1 <l 0.80 33.0
28-Feb-07 <1 <l <l <l 4.00 59.0
27-Jun-07 <l <l <l <l 4.60 59.0
15-Aug-07 <1 <l <l <l 4.40 58 .0
10-0ct-07 <1 <l <l <l 4.10 58.0
26-Mar-08 <l <l <l <l 3.80 54.0
25-Jun-08 <1 <l <l <l 4.24 58.0
10-Sep-08 <l <l <l <l 4.26 50.0
15-0ct-08 <I <l <l <l 4.63 58.0
4-Mar-09 <1 <l <1 <l 3.70 58.0
24-Jun-09 <l <l <l <l 1.20 57.0
15-Sep-09 <l <l <I <l 4.70 63.0
16-Dec-09 <l <l <1 <l 4.10 60.0
24-Feb-10 <1 <l <1 <l 4.30 53.0
8-Jun-10 <l <l <l <l 5.20 52.0
10-Aug-10 <l <l <l <l 5.60 55.0
5-0ct-10 <l <l <l <l 5.80 55 .0
15-Feb-ll ND ND ND ND 5.50 60.0
25-May-l l ND ND ND ND 5.40 56.0
16-Aug-11 ND ND ND ND 5.20 60.0
15-Nov-ll 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
CbJ:0r.ctf0~ · Cat'lffl 'Ch ·M :e Mef.hylene 1·ate . ot'ffle ' ne II 1"W4-U '1'etira$b1i1idt ~lei
.I
{ g/,11} (·u;IU!I) ~ (utin) tmg{J) (mg/I)
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
23-0ct-14 ND ND ND ND 6.28 66.1
11-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
21-0ct-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
19-0ct-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
10-0ct-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
ll-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
Sep-02 Oec-02 Mar-03 Jun-03 Sep-03 Dec-03 Mar-04 Jun-04 Sep-04 Dec-04 Mar-05 Jun-05 Sep-05 Dec-05 Mar-06 Jun-06 Sep-06 Dec-06 Mar-07 Jun-07 Sep-07 Dec-07 Mar-08 Jun-08 Sep-08 Dec-08 Mar-09 Jun-09 Sep-09 Dec-09 Mar-10 Jun-10 Sep-10 Dec-10 Mar-11
Jun-i 1 Sep-1 Dec-1 Mar-2 Jun-12
Sep-12 Dec-12 Mar-13 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-8 Sep-8 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
0
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ChloroForm Ca,rb Chl.oorq:met . · :n-e Meiit,<t e . rate c11mr·de TW4-U (uglill e~l c (agtlJ CMo•ide wt) {~) t1111UU (uaAI():
8-Nov-06 <l <l <l <1 2.40 37.0
28-Feb-07 <1 <l <l <1 2.30 38.0
27-Jun-07 <1 <l <l <l 1.40 38.0
15-Aug-07 <1 <1 <l <l 1.10 36.0
10-0ct-07 <l <l <1 <l 0.80 36.0
26-Mar-08 <l <l <1 <l 0.04 57.0
25-Jun-08 <l <l <l <l 1.56 35.0
10-Sep-08 <l <l <1 <l 1.34 34.0
15-0ct-08 <l <1 <1 <l 0.76 40.0
4-Mar-09 <l <1 <l <l 1.60 35.0
24-Jun-09 <l <1 <l <l 1.40 36.0
15-Sep-09 <1 <1 <l <1 1.50 38.0
16-Dec-09 <1 <1 <l <1 1.40 34.0
3-Mar-10 <1 <l <I <1 2.50 33 .0
8-Jun-10 <l <l <l <1 2.90 49.0
10-Aug-10 <l <l <l <l 2.80 35.0
6-0ct-10 <l <l <l <l 2.90 29.0
15-Feb-11 ND ND ND ND 1.80 25.0
16-Aug-11 ND ND ND ND 2.60 33.0
15-Nov-l l ND ND ND ND 1.70 15.0
17-Jan-12 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
3-0ct-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-14 ND ND ND ND 4.10 38.0
23-0ct-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
21-0ct-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
1; Cub011 Me&y,I CM of-orm ffi>l" · met}1ui-e Nifik Cbl1Dmle TW4-14 (~, Tet.rachloride ( g/J) Cl'flm , (mgll) tmgf<Jl) fwr/Jl .tumli1.
20-0ct-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
10-0ct-l 7 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 54.1
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
l l-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
l 1-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
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50-1nr-9
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1-----+----+--~1-----1----+---1----+----+ vo-uer-v~
0 0 co
0 0 r...:
0 0 <D
0 0 LO
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Chlo110J10:vrn Oar-bon Chlo 0 ,e•ane · ith lene Nitrate .~ -• .ill~'
MW .. 26 (B!-1(} Tutir dtlorid:e ~) Cil;0ri'1e (mg/I) lg/f,)
i, (-wdn. ~u"Jt)
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
29-0ct-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 <l 5.5 0.5 56
27-Jun-07 300 <l <l 13 0.4 49
15-Aug-07 1400 <l <l 36 1 57
10-0ct-07 2000 <l <l 14 0.6 57
26-Mar-08 930 <l <1 40 0.1 49
25-Jun-08 1300 <l <1 53 0.56 57
10-Sep-08 630 <l <1 24 0.24 44
15-0ct-08 1700 <l <1 100 0.65 64
4-Mar-09 950 <l <1 51 0.4 49
24-Jun-09 410 <l <1 12 0.2 48
15-Sep-09 850 <l <l 30 0.1 46
14-Dec-09 1100 <l <l 40 2.3 60
17-Feb-10 780 <l <1 19 0.2 57
9-Jun-10 1900 <1 <1 28 1.1 58
16-Aug-10 2200 <l <l 21 0.6 49
11-0ct-10 970 <l <l 6.5 0.7 65
23-Feb-ll 450 ND ND 3.6 0.5 57
Carbou .................. e
Chloroform Ch]Q11~ane Nitrate Chlodde -26 (ug/1) 'J iWW Ltthle ,uga,) e l"lde (mglli) tmgll) (ud)i) (!Wlffl I
31-May-ll 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
4-0ct-12 1200 ND ND 4 1.8 68
11-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
29-0ct-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
ll-Aug-14 2120 ND 8.7 26 0.7 59
21-0ct-14 2090 ND ND 23.2 0.934 60.1
9-Mar-15 1980 ND ND 27.4 0.732 56.5
8-Jun-15 1980 ND ND 11.2 0.419 62
31-Aug-15 2350 ND 4.05 11.6 0.684 69.6
19-0ct-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
12-0ct-16 2510 ND ND 4.31 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
l 1-0ct-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-18 1680 ND ND ND 2.80 91.4
28-Nov-18 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 1.93 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
28-0ct-20 866 ND ND ND 3.62 67.4
ChlorQform Carbon Chloromethane Methylene Nitrate Chloride MW-2~ (ug/1) Tetrachloride (Ug/1) . Chlor.ide (mg/,l) (mg/I) (u2/I), cu-wt)
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
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CJirlooref.a m Carb.tm Cldoronrethan Mish~ .... CMntide 'fW4-t6 ~) Te rach O'A e (~. rlcle ~·} (~
!i ,Cn~O lwtin
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
l-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
10-0ct-07 1.4 <I <1 <1 4.4 69
26-Mar-08 11 <1 <l 26 ND 52
25-Jun-08 <l <1 <l <1 1.46 58
10-Sep-08 10 <1 <1 14 10.5 71
15-0ct-08 3.9 <1 <l 6.6 9.82 89
4-Mar-09 <1 <1 <1 <1 9.6 78
24-Jun-09 <I <l <l <l 8.9 76
15-Sep-09 <l <l <l <l 8.8 79
17-Dec-09 <1 <1 <1 <l 5.2 76
24-Feb-10 <I <1 <1 <l 4.2 77
9-Jun-10 2.1 <1 <1 <l 4.7 64
24-Aug-10 4.3 <1 <1 <1 4.6 72
6-0ct-10 3 <1 <1 <1 3.3 72
22-Feb-l l 15 ND ND ND 7 86
26-May-l l 16 ND ND ND 5 81
17-Aug-l l 9.2 ND ND ND 1.7 63
16-Nov-11 ND ND ND 1.4 0.4 38
18-Jan-12 ND ND ND 1.7 0.1 48
Cavlil0 --..... -·
Ork, _ __;~-.,.,.. Chl:&r · .
,_
N!it11 {le ehloride 1!hani ~
TW4-H ( gM) I' ac&IG~ (a;. Clito; I {ffl#I~ (~) (.tmffl. (UJ!lf>
31-May-12 ND ND ND ND ND 53
30-Aug-12 ND ND ND ND ND 59
3-0ct-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
29-0ct-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
28-0ct-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
26-0ct-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.l
l l-Oct-17 97.8 ND ND ND 2.12 54.2
20-Mar-18 170 ND ND ND 4.55 85.1
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
17-Jun-21 247 ND ND ND 6.74 87.4
23-Sep-21 202 ND ND ND 5.32 79.8
1
Chlorofo11m Carbon Cblorornetbane Met~y,lene Nitrate Chloride~
I TW4-16 (ug/l) TetTaebloride (ug/1) Chloride (mg:(l) (mg/l) (1J2/l) (uw,1)
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
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vo-uer-v~
Cllto.mfurm Cati!Utll Chlol'ometbane Methylene Nitrate ·CM~ride MW-32 < wn 1L __ _:mi,ie (ugll) ()Jib, hi (mgt,t) (mgiil~ (n~·> { .. &ti')
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
l 7-Nov-04 ND ND
16-Mar-05 ND ND
30-Mar-05 ND ND
25-May-05 <l NA NA NA <0.1 NA
31-Aug-05 <1 <1 3.2 <l <0.1 NA
l-Dec-05 <1 <1 <1 <l' <0.1 NA
9-Mar-06 <1 <l <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 <1 <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 <l <1 <l <1 <0.1 31
10-0ct-07 <1 <1 <1 <1 <0.1 32
26-Mar-08 <1 <1 <1 <1 <0.1 31
25-Jun-08 <l <1 <l <1 <0.05 29
10-Sep-08 <l <l <1 <1 <0.05 30
15-0ct-08 <1 <1 <1 <1 <0.05 26
4-Mar-09 <l <1 <1 <1 <0.1 30
24-Jun-09 <1 <1 <l <1 <0.1 31
15-Sep-09 <1 <1 <1 <1 <0.1 33
16-Dec-09 <1 <l <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 <1 <1 <0.1 28
6-0ct-10 <1 <1 <1 <1 <0.1 24
23-Feb-l 1 ND ND ND ND ND 40
25-May-11 ND ND ND ND ND 31
16-Aug-ll ND ND ND ND ND 33
6-Dec-11 ND ND ND ND ND 32
Cblor&form Carl'on CMn,FG , eGh Me.tit ~are . :ate Chlmde MW-32 'Eet!raclat 'de e Chf0 ~ e (~) (ud,) {n,wi, Eudl~ tmgll) git)
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
10-0ct-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
29-0ct-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
29-0ct-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
28-0ct-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
3 l-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
12-0ct-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
29-0ct-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
Chlol!oform Carbon Chloromethane Methylene Nitrate Chloride MW-32 Tetiracbloride Chloride (ug/J) Cud> (ug/l) (ue/[') tmg/1) (mg/I}
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
u,
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C•mm -.-.;rs -0 lern or Cid rom..'.8t!lm ~ Nitrate Cbfori e TW4-l.8 Tetrad$.rhle C ,@r .
(~ (nd) {~ (11gjf') (HI.I'$ .(m-g/;JO'
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 <l 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 <l <1 5 32
10-0ct-07 7.4 <l <1 <l 4.4 27
26-Mar-08 6.4 <l <l <1 0.7 23
25-Jun-08 5.7 <l <1 <1 4.55 23
10-Sep-08 8.0 <1 <1 <1 4.68 26
15-0ct-08 9.4 <1 <1 <1 5,15 30
4-Mar-09 11.0 <1 <1 <1 5.2 29
24-Jun-09 16.0 <1 <1 <1 6.2 30
15-Sep-09 13.0 <1 <1 <1 5.9 26
22-Dec-09 8.2 <1 <1 <1 5.4 30
24-Feb-10 69.0 <1 <1 <l 5.1 41
9-Jun-10 29.0 <1 <1 <1 9 35
12-Aug-10 29.0 <1 <1 <1 9 37
13-0ct-10 30.0 <1 <1 <1 10 50
22-Feb-11 39.0 ND ND ND 10 52
26-May-11 26.0 ND ND ND 9 36
17-Aug-11 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
~td'orm C.a,"'011 CM ~om tlltane Methyl _,,.. ... , _, 'Cl1uitle ~ti Te :cl!dol"ide • toritle.
.,, _____
~) ;(,a:e.ffi, (iug:t,I~ (u¥¢1r) (m:wt) (:mrgAI)
13-Jun-12 24.0 ND ND ND 6.6 30
ll-Sep-12 38.0 ND ND ND 6.6 26
3-0ct-12 30.0 ND ND ND 6 27
13-Feb-13 34.9 ND ND ND 5.58 23.1
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
28-0ct-14 33.0 ND ND ND 11.1 40.8
12-Mar-15 32.0 ND ND ND 11.7 41.6
l 1-Jun-15 30.5 ND ND ND 9.69 43.5
3-Sep-15 28.7 ND ND ND 15.7 47.6
28-0ct-15 52.9 ND ND ND 6.24 39.4
17-Mar-16 56.6 ND ND ND 5.96 40.7
8-Jun-16 60.0 ND ND ND 5.43 43.8
3-Aug-16 56.3 ND ND ND 5.79 40.7
26-0ct-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
10-0ct-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
l 1-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
11-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
I Chloroform Carbon Chloromethane Methylene Nitrate Qhloride
I TW4-l8 (ugtl) 11etrachloride ~ug/lJ Chloride ~mg/I) (mg/I} (uwl), (ue/1)
23-Mar-22 56.0 ND ND ND 3.4 39.l
22-Ju n-22 62.9 ND ND ND 3.4 48.l
"' G)
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0 LO '<:I"
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0 0 C')
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CMorofonn Carb.en ~methane let.byi D Nitrate Ch:lfflde TW:4~19 (Q{ttt) Tetracht0a,,icle (~1, ChJm,i e (mg/I) (smgM) ~ ~
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
29-0ct-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 1100 <50 <50 <50 5.2 116
20-Jul-06 1120 <50 <50 <50 4.3 123
8-Nov-06 1050 1.6 2.6 <l 4.6 134
28-Feb-07 1200 1.3 <1 <l 4 133
27-Jun-07 1800 2.3
15-Aug-07 1100 1.9 <1 <l 4.1 129
10-0ct-07 llOO 1.9 <1 <l 4 132
26-Mar-08 1800 2.9 <1 <1 2.2 131
25-Jun-08 1000 I <1 <1 2.81 128
10-Sep-08 3600 8.6 <1 <l 36.2 113
15-0ct-08 4200 12 <1 <l 47.8 124
4-Mar-09 1100 1.2 <1 <l 3.2 127
24-Jun-09 990 1.2 <1 <l 2.4 132
15-Sep-09 6600 15 <1 <l 0.1 43
14-Dec-09 4700 16 <1 <l 26.7 124
17-Feb-10 940 1.3 <1 <1 2 144
9-Jun-10 1800 4.2 <1 <1 4.4 132
16-Aug-10 2000 4.9 <1 <l 5.9 142
Cl'llorolorm 1
O&irhoo Ch~cmiedtaae Metby,lene Nimne Chl&ride TW4 .. t9 ' gll) I 'f. ra do:ride (~ CldMde ¢m.gtl~ frog.ff) (aett) " tud,
11-0ct-10 1200 1.3 <l <l 2.7 146
17-Feb-l l 3400 17 ND ND 17 135
7-Jun-11 4000 8.3 ND ND 12 148
17-Aug-ll 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 1.1 ND ND 2.4 149
5-Sep-12 950 3.5 ND ND 2.5 149
3-0ct-12 1500 4 ND ND 4.1 150
11-Feb-13 4210 5.15 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
29-0ct-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
ll-Aug-14 1410 1.9 8.3 ND 1.6 140
21-0ct-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
19-0ct-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
13-0ct-16 6640 10.8 ND ND 10.0 200
8-Mar-17 1240 3.06 ND ND 11.1 461
13-Jun-17 510 1.35 ND ND 0.243 135
26-Jul-l 7 8840 13.0 ND ND 1.12 218
l l-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 IO.IO ND ND 0.332 153
10-Dec-19 551 ND ND ND 0.535 147
19-Feb-20 8720 13.7 5.41 ND IO.I 205
I Carbon Chlorometban·e Methylene Nitrate Chloride TW4•19 Chloroform Te11racblo11ide Chlemde (ug/,1) ( .. wt) {ug/1) (ul!II) (mg/I) (mgll)
27-May-20 7600 10.4 ND ND 1.14 147
4-Sep-20 1350 1.98 ND ND 11.6 188
28-0ct-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
oc:-unr-a~
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cu >
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0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 v C\J 0 co CD v C\J ..-..-..-
(1J6n)
€til0rofo:rm Carl&n Chl~Tometlh M<eth)1Jepe :i:tF< tie CM.mid 'ffl4 .. 2!l (ug/1) Tdrachlo :id'e (11g/f Clm>inirle. (rng/4) (,nwll) (ui!ll) :(uw'f)
25-May-05 192 NA NA NA 14.6 NA
31-Aug-05 78 <5 <5 <5 10.1 NA
1-Dec-05 86 <1 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 <1 <1 8.7 296
28-Feb-07 160 1.8 <l <l 8.7 306
27-Jun-07 300 5.8 <l <l 8.6 327
15-Aug-07 140 <l <l <l 8.6 300
10-0ct-07 120 <1 <1 <l 8.3 288
26-Mar-08 380 7 <l <1 14.3 331
25-Jun-08 160 1.7 <l <l 8.81 27 1
10-Sep-08 120 1.6 <l <l 7.57 244
15-0ct-08 170 2 <l <2 8.00 284
l l-Mar-09 180 <l <1 <l 8.3 279
24-Jun-09 200 <1 <l <1 8.1 291
15-Sep-09 140 <1 <1 <l 9.2 281
22-Dec-09 160 <l <1 <1 8.4 256
25-Feb-10 170 <1 <l <1 8.4 228
10-Jun-10 210 1.2 <l <1 12 266
12-Aug-10 390 9.2 <1 <l 14 278
13-0ct-10 200 1.2 <l <l 7 210
22-Feb-l l 230 1.2 ND ND 9 303
28-Jun-l l 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
4-0ct-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
29-0ct-14 229 1.04 ND ND 10 25 2
Ii ~ef@J'!ffl 'Carbon Ct$r · etlh tlt,rl e, Cllt.Joride' l'W4-2l Tetrachl@.ride Ch O;J' •ie I
trate
(ugt}) fu:dl (~ (uwt)· ' {mgM} ~g/tl) •
12-Mar-15 292 1.75 ND ND 10.9 255
8-Jun-15 366 1.92 ND ND 13.1 494
31-Aug-15 281 ND ND ND 14.7 499
19-0ct-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
12-0ct-16 434 ND ND ND 11.4 301
12-0ct-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
11-0ct-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
22-0ct-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
28-0ct-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
1-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
(ug/L)
..... .....
I\J .i:,.. 0) O'.) 0 I\J
0 0 0 0 0 0 0 0 0 0 0 0 0
14-Jan-04
10-0ct-06
6-Jul-09
~ .i::,.
1-Apr-12 i I \ )[ I I I I I\) ....
0
:T
0 ""I 0 -0 ""I
27-Dec-14 i 1-........ I\ I I I I 3
< !!. C (I)
tn
i I. 1£4 I I I 22-Sep-17
18-Jun-20
15-Mar-23
9-Dec-25 _.__ ___ ___._ ____ ....,__ ___ -.1. ____ ..J...._ ___ ----1 ___ __J
OM01rof,0:rm Ca11ben Cldo¥ometltaue I efily:ll .e Ni,r te Ckt.,:mlc TW4-22 T . rudd: . CbiD :tde (ll~} ·,e (udl) (:myt} m,gl.i~ (1mt1> ,(lM!!l) I!
25-May-05 340 NA NA NA 18.2 NA
31-Aug-05 290 <5 <5 <5 15.7 NA
1-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 <1 15.9 236
28-Feb-07 440 <l <1 <1 20.9 347
27-Jun-07 740 <1 <1 <1 19.3 273
15-Aug-07 530 <1 <1 <1 19.3 259
10-0ct-07 440 <1 <1 <1 18.8 238
26-Mar-08 1400 <1 <1 <1 39.1 519
25-Jun-08 1200 <1 <1 <1 41.9 271
10-Sep-08 6300 1.3 <1 <l 38.7 524
15-0ct-08 630 <2 <2 <2 36.3 539
11-Mar-09 390 <1 <1 <1 20.7 177
24-Jun-09 730 <1 <1 <1 20.6 177
15-Sep-09 2300 <l <1 <1 40.3 391
29-Dec-09 380 <l <1 <1 17.8 175
3-Mar-10 2200 <1 <1 <1 36.6 427
15-Jun-10 540 <I <1 <1 19 134
24-Aug-10 340 <1 <1 <1 15 130
13-0ct-10 340 <1 <1 <1 16 134
23-Feb-I 1 1300 ND ND ND 18 114
l-Jun-11 210 ND ND ND 17 138
17-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
4-0ct-12 330 ND ND ND 14 130
11-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
29-0ct-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
11-Aug-14 12400 1.9 40 ND 41.5 540
21-0ct-14 12400 3.32 1.61 ND 54.9 596
CbJ'MiO'ftOFID Ca.rh(i)D Chio. 0methane · Mdi~eue Nitrate Chloria TW4-22 (ug/il Tefi'adalttri~ (~~ Ohlovi(t (mg/I) (m.W{) (o~t) Cu•
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
19-0ct-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
12-0ct-16 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
1 l-Oct-17 4770 ND ND ND 80.1 600
12-Mar-18 4530 ND ND ND 62.3 607
8-Jun-18 3010 ND ND ND 72.5 580
22-Aug-18 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-19 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
28-0ct-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
1-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
oc:-unr-s~
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u,
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0 v~-oaa-a -0 ...
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N N I oi:t' C: ~ -Jd'v'-~ == t-
50-1nr-9
go-ioo-o~
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0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
s::t" C\I 0 co co s::t" C\J .,... .,... .,...
(1J6n)
' O ·bon i\!lethylene:
T , 4-23 .ChTGr~wn 1'etraehlonde, Cftlor-0metlta-a Cllloride NUt,are Chloride
,, :: {Ugf ,~wt) (ugtl) (uaJ[) (mglf) (ffl1¢1)
27-Jun-07 <1 <1 <l <l <0.1 47
15-Aug-07 <l <1 <l <1 <0.1 46
10-0ct-07 <1 <1 <1 <1 <0.1 43
26-Mar-08 <1 <l <1 <1 <0.1 41
25-Jun-08 <1 <l <1 <1 <0.05 41
10-Sep-08 <1 <l <1 <1 <0.05 35
15-0ct-08 <2 <2 <2 <2 <0.05 51
4-Mar-09 <l <I <1 <1 <0.1 41
24-Jun-09 <l <I <l <1 <0.1 43
15-Sep-09 <l <l <1 <l <0.1 43
16-Dec-09 <l <l <1 <l <0.1 37
24-Feb-10 <l <l <1 <1 <0.1 45
8-Jun-10 <1 <1 <l <1 <0.1 40
10-Aug-10 <1 <1 <l <1 <0.1 40
5-0ct-10 <1 <1 <1 <l <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
3-0ct-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
28-0ct-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
28-0ct-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
20-0ct-16 ND ND ND ND ND 52.1
Chloroform 11 €arbon Cb'k>l'(l.m h ne l\!lethy1ene Nibaitte €1:dM'id TW.41.23 Tetrachloride Cllloritle (uwt) u'gll) {11e/flj ' .(mg/I) I {m;g/i) (ul!t))
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
10-0ct-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
ll-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
l 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
Jun-07
Sep-07
Dec-07
Mar-08
Jun-08
Sep-08
Dec-08
Mar-09
Jun-09
Sep-09
Dec-09
Mar-10
Jun-10
Sep-10
Dec-10
Mar-11
Jun-11
Sep-11
Dec-11
Mar-12
Jun-12
Sep-12
Dec-12
Mar-13
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
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Chlwofonn CKboD Cldoromedtan! MetbJ(tme itrate ,Cbteride TW4,.24 (ugA) Tetradtl~rifle (uWfr) ow rid~ (mgl!) (ID@A) tue/1} {usn
27-Jun-07 2.6 <l <l <1 26.1 770
15-Aug-07 2.2 <1 <l <1 29 791
10-0ct-07 1.5 <1 <l <1 24.7 692
26-Mar-08 1.5 <1 <1 <1 24.4 740
25-Jun-08 1.4 <1 <1 <1 45.3 834
10-Sep-08 2.9 <1 <1 <l 38.4 1180
15-0ct-08 <2 <2 <2 <2 44.6 1130
4-Mar-09 1.4 <1 <1 <l 30.5 1010
24-Jun-09 1.5 <1 <1 <1 30.4 759
15-Sep-09 1.4 <1 <1 <1 30.7 618
17-Dec-09 1.2 <1 <1 <1 28.3 1080
25-Feb-10 1.3 <l <l <l 33.1 896
9-Jun-10 1.7 <l <l <1 30 639
24-Aug-10 1.8 <l <l <1 31 587
6-0ct-10 1.4 <l <l <1 31 522
17-Feb-ll 1.8 ND ND ND 31 1100
26-May-11 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
3-0ct-12 1.0 ND ND ND 38 405
1 l-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
29-0ct-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
ll-Aug-14 76.3 ND ND ND 31.5 1150
21-0ct-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
19-0ct-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-Jul-16 17.8 ND ND ND 34.4 1180
12-0ct-16 20.8 ND ND ND 31.9 1010
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW41,.24 (ugll) Tetrachloride (ug/1) Ctlloride (mg(I} (mg/)~ (ue/l) Cue/I)
8-Mar-17 18.3 ND ND ND 41.3 1090
13-Jun-17 17.2 ND ND ND 39.9 1080
26-Jul-17 17.8 ND ND ND 40.0 1230
11-0ct-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 l. J.00
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 I 130
10-Dec-19 43.3 ND ND ND 33.8 1090
19-Feb-20 61.7 ND ND ND 37.1 1010
27-May-20 49.4 ND ND ND 41.7 1060
4-Sep-20 63.8 ND ND ND 39.1 1100
28-0ct-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
1-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
Ill C1I
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Chlo.r0f0rm Cairb n CJrlwooieth Mitlylene Nitrate Chfcmde TW4 .. 25 (ugll) 'l"etradd@ride (e,~ Chmride (mg.ti) (mgll) (wr}I) , (ue/1'}
27-Jun-07 <1 <l <1 <l 17.1 395
15-Aug-07 <1 <l <1 <1 16.7 382
10-0ct-07 <1 <l <1 <l 17 356
26-Mar-08 <1 <l <1 <1 18.7 374
25-Jun-08 <1 <l <1 <1 22.1 344
10-Sep-08 <1 <1 <l <l 18.8 333
15-0ct-08 <2 <2 <2 <2 21.3 366
4-Mar-09 <l <1 <l <1 15.3 332
24-Jun-09 <l <1 <l <1 15.3 328
15-Sep-09 <1 <1 <l <1 3.3 328
16-Dec-09 <l <1 <1 <l 14.2 371
23-Feb-10 <l <l <1 <l 14.4 296
8-Jun-10 <l <l <1 <l 16 306
10-Aug-10 <1 <l <1 <l 14 250
5-0ct-10 <1 <l <1 <l 15 312
16-Feb-11 ND ND ND ND 15 315
25-May-11 ND ND ND ND 16 321
16-Aug-ll ND ND ND ND 16 276
15-Nov-ll ND ND ND ND 16 294
18-Jan-12 ND ND ND ND 16 304
31-May-12 ND ND ND ND 16 287
ll-Sep-12 ND ND ND ND 17 334
3-0ct-12 ND ND ND ND 17 338
ll-Feb-13 ND ND ND ND 9.04 190
5-Jun-13 ND ND ND ND 5.24 136
3-Sep-13 ND ND ND ND 5.69 119
29-0ct-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
11-Aug-14 ND ND ND ND 1.6 67
21-0ct-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
21-0ct-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
12-0ct-16 ND ND ND ND 1.24 59.8
Chloroform Carbon Chloromethane Methylene itrate Chloride TW4-2S (ugll) Tetrachloride (ug/l) Chlorid (1ngll) (mg/I) (us?!D (:ue/l)
8-Mar-17 1 ND ND ND 17 285
13-Jun-17 ND ND ND ND 0.976 69.8
26-Jul-l 7 ND ND ND ND 1.23 70.1
ll-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 69.1
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 58.1
10-Dec-19 ND ND ND ND 0.841 73.1
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
28-0ct-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 55.1
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
Jun-07
Sep-07
Dec-07
Mar-08
Jun-08
Sep-08
Dec-08
Mar-09
Jun-09
Sep-09
Dec-09
Mar-10
Jun-10
Sep-10
Dec-10
Mar-11
Jun-11
Sep-11
Dec-11
Mar-12
Jun-12
Sep-12
Dec-12
Mar-13
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
0
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Camon Methylene • Chloroform Cklorom.ethan lNitratie Chloride TW4-26 (ug/1) Tetradtlorld (ug/1) Chl'O:tide (mg/I) (mgll)
II (u1f/l) (umn
15-Jun-10 13 <1 <1 <1 7.9 33
Il-Aug-10 5 <1 <l <l 9 17
6-0ct-10 5.4 <1 <1 <l 9.6 22
22-Feb-l 1 2.0 ND ND ND 10 30
26-May-11 2.9 ND ND ND 10 15
17-Aug-ll 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
11-Sep-12 4.9 ND ND ND 9 19
3-0ct-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
5-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
28-0ct-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
28-0ct-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
20-0ct-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-Aug-17 419 ND ND ND 15.2 25.8
ll-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 1140 ND ND ND 11.1 35.1
19-Sep-20 1120 ND ND ND 10.5 34.8
Chloroform Carbon Ohloromethane Methylene Nitrate Chloride TW4-26 (Ug/1) Tetrachloride (ug/1) Chloride (mg/l) (mg/I) ,(gp/1)' (ue/1~
l 1-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
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
N 0 0 0
~ 0 0
O'l 0 0
(ug/1)
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TW4-27 CWorefQ m T,etr, ehl'mide Chlorlfflletha e Msbi le Nitrate Chloride
(ug/ll) (11.d)• (ug,4) ~(ugM) (8'g/l) (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
3-0ct-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
23-0ct-14 ND ND ND ND 28.2 24.4
ll-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
28-0ct-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
20-0ct-16 3.80 ND ND ND 19.3 29.4
15-Mar-17 4.33 ND ND ND 22.2 28.3
15-Jun-17 5.65 ND ND ND 23.8 27.9
2-Aug-17 6.05 ND ND ND 20.0 29.5
10-0ct-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
(ug/1)
0 I-" N w +>, V, °' -..J 00 \D I-" 0
~:IH 1 \ I I I I I I I I r I
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 May-23 Jul-23 Sep-23
Nov-23 ..._ __ _._ __ _.... ___ ...._ __ _.__ __ _... __ _. ___ ..._ __ _._ __ ___._ __ __,
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Clthr&fiorm Ca:tihen Chlon>metlume Methylene Nitrate Chloride TW4-23 l'etraeltloride Chleri4e (ug/1) (umD {ug11) (ml) (mg11) (mgm
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
23-0ct-14 ND ND ND ND 16.5 52.1
11-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
21-0ct-15 ND ND ND ND 18.7 52.7
15-Mar-16 ND ND ND ND 34.0 61.6
25-May-16 ND ND ND ND 29.0 67.l
27-Jul-16 ND ND ND ND 31.3 70.1
19-0ct-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
10-0ct-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 52.1
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
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
Jun-23
Sep-23
Dec-23
0
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II (ud) ,.~.) (a,vl) (U1?11) (rngll) (m
l 9-Jun-13 242 ND ND ND 4.63 44.8
11-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
29-0ct-14 290 ND ND ND 3.64 41
12-Mar-15 299 ND ND ND 4.14 40.5
1 l-Jun-15 329 ND ND ND 2.95 42.5
3-Sep-15 276 ND ND ND 2.19 47.3
29-0ct-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
26-0ct-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
ll-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-18 454 ND ND ND 2.52 45.9
13-Dec-18 521 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
l 1-Nov-20 671 ND ND ND 3.27 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
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
0
I-' 0 0
N 0 0
w 0 0
(ug/1)
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u,
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Chloroform 0 l'i'OD Cldo:r-emedmn Meth e Nitrate Chlo.ride TW4-l0 TetradaloPide tnid~ (ug/1) (oe}I) (ug/,1,) (W!A) (mg/I} (mg/I)
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 3 J.99
13-Aug-14 ND ND ND ND 1.5 38
23-0ct-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
28-0ct-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
20-0ct-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
10-0ct-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
ll-Sep-19 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
l l-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 2.8 41.3
0 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 -
......
0 0
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(ug/L)
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Chlond'61'Dl C· lton Cldorametl1ue Methylene Nit.rate Cht•ride TW4-31 (~gfl} Tencltlorkfe (ugll~ ChloFitle (mg/I) (mgM)
I (u.@lli) (Utz/I)
19-Jun-13 ND ND ND ND 1.26 28.4
5-Sep-13 ND ND ND ND 1.1 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 1.1 30
28-0ct-14 ND ND ND ND 1.23 30
1 l-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
21-0ct-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
20-0ct-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 I. II 33.0
10-0ct-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 0.7 10 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
l 1-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 0.4l 35.5
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
Jun-23
Oct-23
0
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Chloroform Carbon Chl @metlum hy.(ene Nitiate €h1oride TW4-32 TetracM~ id (ug/1) (11e-Al (ug/1) Chlori• tugll:) (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
23-0ct-14 ND ND ND ND 2.14 62.6
1 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
21-0ct-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
19-0ct-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
10-0ct-17 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 1.84 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 1.74 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
Nov
Feb
May
Aug
Nov-
Feb-
May-
Aug-
Nov-
Feb-
May-
Aug-
Nov-
Feb-1
May-1
Aug-1
Nov-1
Feb-1
May-1
Aug-1
Nov-1
Feb-1
May-1
Aug-1
Nov-19
Feb-20
May-20
Aug-20
Nov-20
Feb-21
May-21
Aug-21
Nov-21
Feb-22
May-22
0
0
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-33 Tetrachloride (ug/1) '('u211)' (ug'71) €bloride (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
29-0ct-14 124 ND ND ND 2.22 44.2
12-Mar-15 134 ND ND ND 1.91 44.2
11-Jun-15 127 ND ND ND 1.62 46.4
3-Sep-15 123 ND ND ND 1.64 53.4
29-0ct-15 129 ND ND ND 1.92 44.5
17-Mar-16 122 ND ND ND 2.13 46.2
8-Jun-16 96 ND ND ND 2.06 49.7
4-Aug-16 121 ND ND ND 2.32 48.5
26-0ct-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
ll-Oct-17 97.1 ND ND ND 2.09 42.5
15-Mar-18 128 ND ND ND 1.94 49.2
13-Jun-18 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 1-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
23-Mar-22 53.1 ND ND ND 3.8 51.4
22-Jun-22 58.7 ND ND ND 3.7 56.7
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
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Chloroform Carbon Chlortme&ane Methylene Nitrate Chloride TW4-34 Tetradtl · Me ·hmd (ug/1) (llt!fli} (ugAI) (ad) (mg,'J) (mg/I)
14-Nov-13 ND ND 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 1.1 18
28-0ct-14 ND ND ND ND 1.16 17.5
ll-Mar-15 ND ND ND ND 1 .. 2 1 17.7
10-Jun-15 ND ND ND ND 0.868 17.4
3-Sep-15 ND ND ND ND 0.458 15.1
21-0ct-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
20-0ct-16 ND ND ND ND 0.612 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
10-0ct-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-Dec-19 ND ND ND ND 1.07 21.4
17-Mar-20 ND ND ND ND 1.09 20.l
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 1.1 15.0
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
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
May-23
Aug-23
Nov-23
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Chlol'oform Carbon ChJormnetlta'B! Mdhylene Nitrate Ch oriue TW4-35 (ug/1) Tdraebloride (ug/t) Obloride (mgll) ( g/l)
I Cq/1) (uefl1
27-Aug-14 ND ND ND ND 0.2 34
28-0ct-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
28-0ct-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
20-0ct-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
10-0ct-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
11-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 34.1
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
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
0
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Chloroform Carbon Chlo.romethane Methylene Nitrat Chloride TW4-36 (ug/l) Tetrachloride (ug/1) Chlorid~ (mg/I) {mg/I) (uK/1) (uKI)).
27-Aug-14 ND ND ND ND ND 65
23-0ct-14 ND ND ND ND ND 67.3
l 1-Mar-15 ND ND ND ND ND 67.2
10-Jun-15 ND ND ND ND ND 69.3
3-Sep-15 ND ND ND ND ND 76.4
21-0ct-15 ND ND ND ND ND 64.5
16-Mar-16 ND ND ND ND ND 67.1
25-May-16 ND ND ND ND ND 72.3
27-Jul-16 ND ND ND ND ND 69.4
20-0ct-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
10-0ct-l 7 ND ND ND ND 0.104 62.9
14-Mar-18 ND ND ND ND ND 73.8
12-Jun-18 ND ND ND ND ND 64.3
29-Aug-18 ND ND ND ND ND 76.4
12-Dec-18 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
11-Sep-19 ND ND ND ND ND 69.6
14-Dec-19 ND ND ND ND ND 73.7
l 7-Mar-20 ND ND ND ND ND 69.1
1 l-Jun-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
16-Mar-22 ND ND ND ND 0.1 61.2
15-Jun-22 ND ND ND ND ND 68.8
0
Aug-14 l
Nov-14
Feb-15
May-15 f
Aug-15
Nov-15
Feb-16
May-16 ;
Aug-16 l
Nov-16
Feb-17
May-17 I
Aug-17 i
Nov-17
Feb-18
May-18 f
Aug-18 :
Nov-18
Feb-19 t
May-19
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Nov-19 I
Feb-20 •
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€hloro orm Carbon Chlorometbane Methylene Nitr.ate Cblori'de TW4-37 Tetrachloride Chloride, (ug/1) (uf?/1) (ug/1) (ue/n (mg/I) (mg/1)
8-Jun-15 30200 18 16 2 35 345
31-Aug-15 19100 17 14 1.04 32 374
19-0ct-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
12-0ct-16 16400 16 ND ND 26.1 304
8-Mar-17 18000 15 ND ND 32.3 305
13-Jun-17 15800 16 ND ND 31.2 281
26-Jul-17 15000 15.1 ND ND 30.5 277
1 l-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
28-0ct-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
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
0
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Chloroform Carbon €hi or.om ethane .Methylene :Nitnte Chloride TW4-38 (ug/1~ Tetrachloride (ug/1) Ohloride (mg/)) (mg/I) (ilwl) (ui!'lll
10-Nov-16 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 IO.I 36.9
10-0ct-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-18 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
l 1-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
l 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
(ug/L)
0 0 0 0 0 ...... ...... ...... ...... ...... ......
Nov-16
Feb-17 •
May-17
T
Aug-17 ~
• Nov-17
Feb-18
t May-18
Aug-18 1
Nov-18 -t
== ~ I
Feb-19 CA)
0)
0
May-19 :::r 0 ~ 0
Aug-19 -0 ~ 3
Nov-19! < D)
C
Feb-20 (I)
tn
May-20
Aug-20
t Nov-20 '
Feb-21
t May-21
t Aug-21
Nov-21
Feb-22
May-22
Chloroform Cara,oi, Cblorometbane Methylene Nimat Chloride TW4-39 Tetraehloride Chloride (ug/1) (Ua/1) (ug/J) (ue/1) (mg/I) (mgtl)
10-Nov-16 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 14.40 ND 1.50 7.74 132
l 1-0ct-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
28-0ct-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
l-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
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
I\) 0 0 0 0
.i:,.. 0 0 0
(ug/L)
0)
0 0 0
CX)
0 0 0
......
0 0 0 0
......
I\)
0 0 0
-I ! I w CD
0 :T o ~ ... 3
~
C: CD tn
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-40 (ug/1~ Tetrachloride (ugll) Chlo~ide (mg/I) (mg/1) {ug/f) ('ug/f)
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 3.18 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
28-0ct-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
l-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
u,
Cl) ::::,
C'CI >
E I.,
0 -0 I.,
.2 .c 0
0 "'=I' I "'=I' ~ I-
0 0 I/)
0 I/)
'<t"
0 0 '<t"
0 I/)
C")
0 0 C")
0 I/)
C\I
(1/6n)
0 0 C\I
0 I/) 0 0 .-
0 I/) 0
c::c::-qa.:1-8
~c::-uer-v
oc::-unr-B~
6~-oaa-~
6 ~ -ABV\1-9 ~
s~-Jdv-o~
Chloroform Carbon Ohloromethane Methylene Chloride TW4-41 (ug/1) Tetrachloride (ug/1) Oliloride Nitrate (mg/I) (mg/I) (ue/1) (us/I)
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
28-0ct-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
u,
Cl)
::::J ca >
E ...
0 -0 ...
.2 .c
0 ,....
-=:t' I -=:t' 3: I-
.----~-----------~---~--~---...-----.-ii-Bnv-a
oi-unr-a~
6 ~-oao-~
6 ~ -ABV\J-9 ~
1-----+-----1--------+-----+---1-----1-----1-L~-das-ii
0 0 (0 ,-
0 ~ ,-
0 0 C\J ,-
0 0 0
0 0 co
(1J6n)
0 0 (0
0 0 '<t
0 0 C\J
0
ChloFoform Carbon Chloromethane Methylene Nitr.ate Chloride TW4-42 (ugll) Tetrachloride (ug/1) Ghloride (mg/l) (mg/I) (ue/1) I tue/1)
19-Jun-19 ND ND ND ND 2.57 23.3
ll-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
(ug/L)
0 0 0 0 0 _.
27-0ct-18 -1------1----+----;----1---;----;----t----t----;----1
15-May-19
.1
1-Dec-19
I I I I I I I I I ~ • I I I I I I I I I ~ I ~ N
0
18-Jun-20 t I I I I I I I I I I ::r
0 ... a 0 • I I I ...
3
• I I I I I I I I < D> c C,
4-Jan-21 1 I I I I I I I I I 0
•
23-Jul-21
•
•
8-Feb-22
•
~
27-Aug-22 _.__ _ __. __ _._ _ __.~ _ _._ __ ....__ _ _._ __ _.__ _ ___.._ __ ....._ _ ___,
Chloroform Carbon Chlorometbane MetllyJene Chloride TW4 .. 43 (ug/1) Tetrachloride (ug/1) Chloride Nitrate (mg/I) (mg/I)
' (ust.m (iua/1)
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
tn G) ::::,
ca >
E ...
0 0 ...
.2 .r:. 0
C"')
~ I ;
I-
T"" T"" T""
(1J6n)
cc-Bnv-vc
'
.~
ii-qa.::1-9
••
0 0 0 0 0
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
01 18 1271
0218 1271
0318 1208
0418 1107
01 19 833
0219 1408
0319 1050
0419 770
01 20 1106
02 20 1056
03 20 909
0420 715
01 21 1273
02 21 784
03 21 933
04 21 981
01 22 711
02 22 1124
Notes:
lbs =pounds
H: \718000\a ug22\chloroform\massca lc\Fl. l_resid_chl_mass_ 2Q22.xls: Table l.1
1,
~
QI .... Ill
E :;::; "' I.I.I
"' "' Ill :E
E ... .E 0 ... .5! ~ u
iii :::J "Cl ·;;;
QI a::
2400
2200
2000
1800
1600
1400
1200
1000
800
600
400
200
0
1S::,\.<:, C)?
1,0\.'o
~\.
1,0\.'o
C)?
~ mass estimate
,_0\.1
~\.
--Linear (mass estimate)
1,0\.1
C)?
1,0\.'b
~\.
1,0\.'b
C)?
1,0\.°>
O>
H:\718000\aug22\chloroform\masscalc\FL.1_resid_chl_mass_2Q22.xls: FL.1 Resid CHL Mass
,_o\.°>
C)?
,_01-0
~\.
HYDRO
GEO
CHEM,INC.
,_01-0 ~~ ,_01-\.
~\. C)?
,_01-\. ,_01-1-
~\.
TIME SERIES OF RESIDUAL CHLOROFORM MASS
ESTIMATES
Approved I Date
SJS
Author I Date
SJS
File Name I Figure
MassEslTimeSeries,zls L.1
CHLOROFORM RESIDUAL MASS ESTIMATE DETAILS:
Chloroform Data File: CHL_Surferlnput_Q2_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) Ql, 2022 (previous quarter) data used at wells: none
Chloroform residual mass estimate kriged g1id files (ascii format):
Ucm2Q22wl.grd: second quarter, 2022 Water Level Grid (ft amsl)
Ucm2Q22bb.grd: second quarter, 2022 Aquifer Base Grid (ft amsl)
Ucm2Q22sat.grd: second quarter, 2022 Saturated Thickness Grid (ft)
Ucm2Q22logchl.grd: second quarter, 2022 log of chloroform grid (log of ug/L)
Ucm2Q22chl.grd: second quarter, 2022 Chloroform Concentration Grid (ug/L)
Ucm2Q22ge70.grd: second quarter, 2022 Chloroform Concentration GE 70 Grid (ug/L)
Ucm2Q22volm3.grd: second quarter, 2022 Groundwater Volume Grid (m3)
Ucm2Q22masslb.grd: second quarter, 2022 Chloroform Plume Mass Grid (lb)
Chloroform residual mass estimate kriged grid XYZ files (ascii format):
Ucm2Q22wl.dat: second quarter, 2022 Water Level Grid XYZ file (ft amsl)
Ucm2Q22bb.dat: second quaiter, 2022 top of Aquifer Base Grid XYZ file (ft amsl)
Ucm2Q22sat.dat: second quarter, 2022 Saturated Thickness Grid XYZ file (ft)
Ucm2Q22logchl.dat: second quarter, 2022 log of chloroform grid XYZ file (log of ug/L)
Ucm2Q22chl.dat: second quarter, 2022 Chloroform Concentration Grid XYZ file (ug/L)
Ucm2Q22ge70.dat: second quarter, 2022 Chloroform Concentration GE 70 Grid (ug/L)
XYZfile
Ucm2Q22volm3.dat: second quarter, 2022 Groundwater Volume Grid XYZ file (m3)
Ucm2Q22masslb.dat: second quarter, 2022 Chloroform Plume Mass Grid XYZ file (lb)
Chloroform plume mass estimate file: Ucm2Q22result.xls
TabM
CSV Transmittal Letter
Kathy Weinel
From:
Sent:
To:
Cc:
Subject:
Attachments:
Dear Mr. Goble,
Kathy Weinel
Wednesday, August 10, 2022 8:15 AM
Phillip Goble
'Dean Henderson'; David Frydenlund; Scott Bakken; Garrin Palmer; Logan Shumway; Jordan App
Transmittal of CSV Files White Mesa Mill 2022 Q2 Chloroform Monitoring
22E1499 FINAL EnergyFuels-Client 02 Jun 22 1033.csv; 22F0972 FINAL EnergyFuels-Client 23 Jun
22 1009.csv; 22F1630 FINAL EnergyFuels-Client 29 Jun 22 1411.csv; 22F2101 FINAL EnergyFuels-
Client 11 Jul 22 1555.csv; Q2 2022 DTW all programs -EIM.csv; Q2 2022 Field Data.csv
Attached to this e-mail is an electronic copy of laboratory results for chloroform monitoring conducted at the White Mesa Mill
during the second quarter of 2022, in Comma Separated Value (CSV) format.
Other electronic files required by the Corrective Action Plan are included on the CDs included with the hard copy reports.
Please contact me at 303-389-4134 if you have any questions on this transmittal.
Yours Truly
Kathy Weinel
(' .~£ Energy Fuels Resources (USA) Inc.
Kathy W einel
Director, Regulatory Compliance
t:303.389.4134 I c: I f:303.389.4125
[e-mail]
225 Union Blvd., Suite 600
Lakewood, CO 80228
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 deliberateJy left blank.
ID UTM NAD83 E UTM NAD83 N Q2 chl log chl
MW-01 632048.762 4156277.343 0.5 -0.69315
MW-02 631111.458 4155147.645 0.5 -0.69315
MW-3A 631188 4153701 0.5 -0.69315
MW-04 632528.239 4154843.595 1010 6.917706
MW-05 631487.143 4154685.998 0.5 -0.69315
MW-11 631884.320 4154613.567 0.5 -0.69315
MW-12 631227.666 4154732.958 0.5 -0.69315
MW-14 631683.028 4154278.148 0.5 -0.69315
MW-15 631500.674 4154305.536 0.5 -0.69315
MW-17 631911.605 4154068.619 0.5 -0.69315
MW-18 632293.435 4156108.350 0.5 -0.69315
MW-19 632687.427 4155914.140 0.5 -0.69315
MW-20 631080.558 4153163.859 0.5 -0.69315
MW-22 632550.351 4152699.061 0.5 -0.69315
MW-23 631055.742 4154775.143 0.5 -0.69315
MW-24 631278.659 4155179.519 0.5 -0.69315
MW-25 632162.900 4154565.810 0.5 -0.69315
MW-27 632058.974 4155531.958 0.5 -0.69315
MW-28 631668.123 4155173.235 0.5 -0.69315
MW-29 631508.577 4154977.313 0.5 -0.69315
MW-30 631814.639 4154904.086 0.5 -0.69315
MW-31 632096.041 4154832.451 0.5 -0.69315
MW-33 631066.637 4154384.754
MW-34 631289.321 4154343.279
MW-35 631066.446 4154577.601 0.5 -0.69315
MW-36 631052.558 4154496.563 0.5 -0.69315
MW-37 631395.246 4154320.793 0.5 -0.69315
MW-38 631855.323 4153140.006 0.5 -0.69315
MW-39 632220.670 4153395.504 0.5 -0.69315
MW-40 632565.648 4153638.305 0.5 -0.69315
TW4-01 632520.433 4154799.077 914 6.817831
TW4-02 632528.370 4154876.070 892 6.793466
TW4-03 632529.958 4155043.522 0.5 -0.69315
TW4-04 632536.308 4154716.526 1110 7.012115
TW4-05 632510.114 4155144.358 10.3 2.332144
TW4-06 632522.020 4154641.120 2.1 0.741937
TW4-07 632514.876 4154837.177 447 6.102559
TW4-08 632563.295 4154833.208 10.9 2.388763
TW4-09 632514.876 4155095.960 9.8 2.282382
TW4-10 632447.407 4155045.933 342 5.834811
TW4-11 632452.964 4154913.377 2550 7.843849
TW4-12 632677.595 4155051.490 0.5 -0.69315
TW4-13 632653.783 4154905.439 0.5 -0.69315
TW4-14 632658.545 4154695.889 0.5 -0.69315
MW-26 632333.661 4155062.031 611 6.415097
TW4-16 632313.263 4154921.314 120 4.787492
MW-32 632310.150 4154786.287 0.5 -0.69315
TW4-18 632486.301 4155193.571 62.9 4.141546
TW4-19 632348.982 4155189.602 2540 7.839919
TW4-20 632306.120 4155155.471
TW4-21 632354.538 4155286.440 657 6.487684
TW4-22 632198.963 4155172.934 2600 7.863267
TW4-23 632383.895 4154586.902 0.5 -0.69315
TW4-24 632116.844 4155166.850 124 4.820282
TW4-25 632359.142 4155402.627 0.5 -0.69315
TW4-26 632518.845 4154554.601 790 6.672033
TW4-27 632674.000 4154604.000 3.1 1.131402
TW4-28 632742.000 4155021.000 0.5 -0.69315
TW4-29 632668.000 4154547.000 398 5.986452
TW4-30 632715.000 4154561.000 70.8 4.259859
TW4-31 632734.000 4154601.000 0.5 -0.69315
TW4-32 632808.000 4154983.000 0.5 -0.69315
TW4-33 632609.000 4154617.000 58.7 4.07244
TW4-34 632667.000 4154471.000 0.5 -0.69315
TW4-35 632714.000 4154505.000 0.5 -0.69315
TW4-36 632674.000 4154828.000 0.5 -0.69315
TW4-37 632256.000 4155157.000 46800 10.75364
TW4-38 632584.643 4155087.571 0.5 -0.69315
TW4-39 632397.658 4155145.602 982 6.889591
TW4-40 632513.410 4154480.872 323 5.777652
TW4-41 632553.968 4154729.708 1010 6.917706
TW4-42 632524.19 4154418.44 0.5 -0.69315
TW4-43 632776.721 4154509.148 0.5 -0.69315
632250.5 4155154 37.39911
632265.8 4155154 34.49575
632265.8 4155170 28.6541
632250.5 4155170 28.15577
632265.8 4155139 21.91298
632250.5 4155139 21.80398
632281 4155154 20.17196
632281 4155170 19.5152
632235.3 4155154 18.39878
632265.8 4155185 17.80528
632250.5 4155185 16.37934
632235.3 4155170 16.36966
632281 4155139 15.46623
632281 4155185 14.87663
632235.3 4155139 14.16625
632296.2 4155170 12.49375
632265.8 4155124 12.33508
632250.5 4155124 12.04404
632296.2 4155154 11.88101
632235.3 4155185 11.21455
632296.2 4155185 11.04258
632265.8 4155200 10.80569
632281 4155200 10.1624
632281 4155124 9.994732
632296.2 4155139 9.944146
632250.5 4155200 9.619695
632235.3 4155124 9.08054
632220 4155154 9.059487
632296.2 4155200 8.516032
632220 4155170 8.380834
632311.5 4155170 8.376794
632311.5 4155185 8.016945
632220 4155139 7.854232
632311.5 4155154 7.601267
632296.2 4155124 7.194017
632235.3 4155200 7.086109
632265.8 4155109 7.04282
632250.5 4155109 6.865091
632311.5 4155200 6.739655
632311.5 4155139 6.623162
632281 4155215 6.608742
632265.8 4155215 6.545963
632220 4155185 6.492089
632281 4155109 6.105191
632296.2 4155215 6.049316
632326.7 4155170 6.006023
632326.7 4155185 5.867492
632220 4155124 5.792951
632250.5 4155215 5.713651
632235.3 4155109 5.588227
632326.7 4155154 5.558964
632326.7 4155200 5.18346
632311.5 4155215 5.180713
632311.5 4155124 5.081855
632326.7 4155139 4.743202
632296.2 4155109 4.736954
632204.8 4155154 4.558561
632220 4155200 4.545349
632235.3 4155215 4.375221
632342 4155170 4.366711
632342 4155185 4.287453
632326.7 4155215 4.231319
632204.8 4155170 4.220906
632204.8 4155139 4.218437
632281 4155231 4.171574
632265.8 4155093 4.159386
632342 4155154 4.078713
632296.2 4155231 4.076094
632250.5 4155093 4.06536
632220 4155109 3.947762
632265.8 4155231 3.946371
632342 4155200 3.893337
632311.5 4155231 3.740958
632281 4155093 3.724439
632326.7 4155124 3.700632
632204.8 4155185 3.540302
632311.5 4155109 3.521096
632342 4155139 3.510112
632235.3 4155093 3.459987
632204.8 4155124 3.425327
632250.5 4155231 3.403677
632342 4155215 3.315153
632326.7 4155231 3.253418
632357.2 4155170 3.169423
632357.2 4155185 3.106497
632220 4155215 3.012402
632296.2 4155093 3.009485
632357.2 4155154 3.000848
632357.2 4155200 2.859459
632342 4155124 2.793422
632204.8 4155200 2.714092
632342 4155231 2.677312
632235.3 4155231 2.671754
632326.7 4155109 2.646725
632357.2 4155139 2.635002
632296.2 4155246 2.631134
632220 4155093 2.617067
632265.8 4155078 2.566649
632311.5 4155246 2.56635
632281 4155246 2.56294
632204.8 4155109 2.554079
632250.5 4155078 2.509047
632357.2 4155215 2.493293
632189.6 4155154 2.384448
632326.7 4155246 2.381016
632265.8 4155246 2.351849
632281 4155078 2.344321
632311.5 4155093 2.300967
632372.4 4155170 2.285313
632189.6 4155139 2.283722
632189.6 4155170 2.234715
632372.4 4155185 2.225872
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632418.2 4155490 0
632433.4 4155490 0
632448.6 4155490 0
632463.9 4155490 0
632479.1 4155490 0
632494.4 4155490 0
632509.6 4155490 0
632524.8 4155490 0
632540.1 4155490 0
632555.3 4155490 0
632570.6 4155490 0
632585.8 4155490 0
632601 4155490 0
632616.3 4155490 0
632631.5 4155490 0
632646.8 4155490 0
632662 4155490 0
632677.2 4155490 0
632692.5 4155490 0
632707.7 4155490 0
632723 4155490 0
632738.2 4155490 0
632753.4 4155490 0
632768.7 4155490 0
632783.9 4155490 0
632799.2 4155490 0
632814.4 4155490 0
632829.6 4155490 0
632844.9 4155490 0
632860.1 4155490 0
632875.4 4155490 0
632890.6 4155490 0
632905.8 4155490 0
632921.1 4155490 0
632936.3 4155490 0
632951.6 4155490 0
632966.8 4155490 0
632982 4155490 0
632997.3 4155490 0
633012.5 4155490 0
633027.8 4155490 0
633043 4155490 0
631900 4155505 0
631915.2 4155505 0
631930.5 4155505 0
631945.7 4155505 0
631961 4155505 0
631976.2 4155505 0
631991.4 4155505 0
632006.7 4155505 0
632021.9 4155505 0
632037.2 4155505 0
632052.4 4155505 0
632067.6 4155505 0
632082.9 4155505 0
632098.1 4155505 0
632113.4 4155505 0
632128.6 4155505 0
632143.8 4155505 0
632159.1 4155505 0
632174.3 4155505 0
632189.6 4155505 0
632204.8 4155505 0
632220 4155505 0
632235.3 4155505 0
632250.5 4155505 0
632265.8 4155505 0
632281 4155505 0
632296.2 4155505 0
632311.5 4155505 0
632326.7 4155505 0
632342 4155505 0
632357.2 4155505 0
632372.4 4155505 0
632387.7 4155505 0
632402.9 4155505 0
632418.2 4155505 0
632433.4 4155505 0
632448.6 4155505 0
632463.9 4155505 0
632479.1 4155505 0
632494.4 4155505 0
632509.6 4155505 0
632524.8 4155505 0
632540.1 4155505 0
632555.3 4155505 0
632570.6 4155505 0
632585.8 4155505 0
632601 4155505 0
632616.3 4155505 0
632631.5 4155505 0
632646.8 4155505 0
632662 4155505 0
632677.2 4155505 0
632692.5 4155505 0
632707.7 4155505 0
632723 4155505 0
632738.2 4155505 0
632753.4 4155505 0
632768.7 4155505 0
632783.9 4155505 0
632799.2 4155505 0
632814.4 4155505 0
632829.6 4155505 0
632844.9 4155505 0
632860.1 4155505 0
632875.4 4155505 0
632890.6 4155505 0
632905.8 4155505 0
632921.1 4155505 0
632936.3 4155505 0
632951.6 4155505 0
632966.8 4155505 0
632982 4155505 0
632997.3 4155505 0
633012.5 4155505 0
633027.8 4155505 0
633043 4155505 0
631900 4155520 0
631915.2 4155520 0
631930.5 4155520 0
631945.7 4155520 0
631961 4155520 0
631976.2 4155520 0
631991.4 4155520 0
632006.7 4155520 0
632021.9 4155520 0
632037.2 4155520 0
632052.4 4155520 0
632067.6 4155520 0
632082.9 4155520 0
632098.1 4155520 0
632113.4 4155520 0
632128.6 4155520 0
632143.8 4155520 0
632159.1 4155520 0
632174.3 4155520 0
632189.6 4155520 0
632204.8 4155520 0
632220 4155520 0
632235.3 4155520 0
632250.5 4155520 0
632265.8 4155520 0
632281 4155520 0
632296.2 4155520 0
632311.5 4155520 0
632326.7 4155520 0
632342 4155520 0
632357.2 4155520 0
632372.4 4155520 0
632387.7 4155520 0
632402.9 4155520 0
632418.2 4155520 0
632433.4 4155520 0
632448.6 4155520 0
632463.9 4155520 0
632479.1 4155520 0
632494.4 4155520 0
632509.6 4155520 0
632524.8 4155520 0
632540.1 4155520 0
632555.3 4155520 0
632570.6 4155520 0
632585.8 4155520 0
632601 4155520 0
632616.3 4155520 0
632631.5 4155520 0
632646.8 4155520 0
632662 4155520 0
632677.2 4155520 0
632692.5 4155520 0
632707.7 4155520 0
632723 4155520 0
632738.2 4155520 0
632753.4 4155520 0
632768.7 4155520 0
632783.9 4155520 0
632799.2 4155520 0
632814.4 4155520 0
632829.6 4155520 0
632844.9 4155520 0
632860.1 4155520 0
632875.4 4155520 0
632890.6 4155520 0
632905.8 4155520 0
632921.1 4155520 0
632936.3 4155520 0
632951.6 4155520 0
632966.8 4155520 0
632982 4155520 0
632997.3 4155520 0
633012.5 4155520 0
633027.8 4155520 0
633043 4155520 0
631900 4155535 0
631915.2 4155535 0
631930.5 4155535 0
631945.7 4155535 0
631961 4155535 0
631976.2 4155535 0
631991.4 4155535 0
632006.7 4155535 0
632021.9 4155535 0
632037.2 4155535 0
632052.4 4155535 0
632067.6 4155535 0
632082.9 4155535 0
632098.1 4155535 0
632113.4 4155535 0
632128.6 4155535 0
632143.8 4155535 0
632159.1 4155535 0
632174.3 4155535 0
632189.6 4155535 0
632204.8 4155535 0
632220 4155535 0
632235.3 4155535 0
632250.5 4155535 0
632265.8 4155535 0
632281 4155535 0
632296.2 4155535 0
632311.5 4155535 0
632326.7 4155535 0
632342 4155535 0
632357.2 4155535 0
632372.4 4155535 0
632387.7 4155535 0
632402.9 4155535 0
632418.2 4155535 0
632433.4 4155535 0
632448.6 4155535 0
632463.9 4155535 0
632479.1 4155535 0
632494.4 4155535 0
632509.6 4155535 0
632524.8 4155535 0
632540.1 4155535 0
632555.3 4155535 0
632570.6 4155535 0
632585.8 4155535 0
632601 4155535 0
632616.3 4155535 0
632631.5 4155535 0
632646.8 4155535 0
632662 4155535 0
632677.2 4155535 0
632692.5 4155535 0
632707.7 4155535 0
632723 4155535 0
632738.2 4155535 0
632753.4 4155535 0
632768.7 4155535 0
632783.9 4155535 0
632799.2 4155535 0
632814.4 4155535 0
632829.6 4155535 0
632844.9 4155535 0
632860.1 4155535 0
632875.4 4155535 0
632890.6 4155535 0
632905.8 4155535 0
632921.1 4155535 0
632936.3 4155535 0
632951.6 4155535 0
632966.8 4155535 0
632982 4155535 0
632997.3 4155535 0
633012.5 4155535 0
633027.8 4155535 0
633043 4155535 0
631900 4155551 0
631915.2 4155551 0
631930.5 4155551 0
631945.7 4155551 0
631961 4155551 0
631976.2 4155551 0
631991.4 4155551 0
632006.7 4155551 0
632021.9 4155551 0
632037.2 4155551 0
632052.4 4155551 0
632067.6 4155551 0
632082.9 4155551 0
632098.1 4155551 0
632113.4 4155551 0
632128.6 4155551 0
632143.8 4155551 0
632159.1 4155551 0
632174.3 4155551 0
632189.6 4155551 0
632204.8 4155551 0
632220 4155551 0
632235.3 4155551 0
632250.5 4155551 0
632265.8 4155551 0
632281 4155551 0
632296.2 4155551 0
632311.5 4155551 0
632326.7 4155551 0
632342 4155551 0
632357.2 4155551 0
632372.4 4155551 0
632387.7 4155551 0
632402.9 4155551 0
632418.2 4155551 0
632433.4 4155551 0
632448.6 4155551 0
632463.9 4155551 0
632479.1 4155551 0
632494.4 4155551 0
632509.6 4155551 0
632524.8 4155551 0
632540.1 4155551 0
632555.3 4155551 0
632570.6 4155551 0
632585.8 4155551 0
632601 4155551 0
632616.3 4155551 0
632631.5 4155551 0
632646.8 4155551 0
632662 4155551 0
632677.2 4155551 0
632692.5 4155551 0
632707.7 4155551 0
632723 4155551 0
632738.2 4155551 0
632753.4 4155551 0
632768.7 4155551 0
632783.9 4155551 0
632799.2 4155551 0
632814.4 4155551 0
632829.6 4155551 0
632844.9 4155551 0
632860.1 4155551 0
632875.4 4155551 0
632890.6 4155551 0
632905.8 4155551 0
632921.1 4155551 0
632936.3 4155551 0
632951.6 4155551 0
632966.8 4155551 0
632982 4155551 0
632997.3 4155551 0
633012.5 4155551 0
633027.8 4155551 0
633043 4155551 0
632509.6 4154880 -0.00577
632509.6 4154895 -0.012
632494.4 4154895 -0.01317
632479.1 4154911 -0.01342
632479.1 4154895 -0.01404
632524.8 4154880 -0.05919
632463.9 4154911 -0.06814
total 1124