DRC-2024-006535

etNERGYFUELS
August 7, 2024
Sent VIA EXPEDITED DELIVERY
Mr. Doug Hansen
Director
Div of Waste Management
and Radiation Control
AUG 1 3 2024
Division of Waste Management and Radiation Control
Utah Department of Environmental Quality
195 North 1950 West
Salt Lake City, UT 84116
F nerg~ I-ud~ Re so urces( l '-, \) Inc.
225 l nio n 131\d . ~uite 6410
La l-c\l oo d. CO, l ~-80:!:!8
30.i 9"' -t :! I -t O
\I 1\ 1\ .en erg.), I ut.:ls corn
Re: Transmittal of 2nd Quarter 2024 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
2024 as required by the Stipulation and Consent Order, UDEQ Docket No . UGW-20-01 as well as two CDs, that
each contains a word searchable electronic copy of the report.
If you should have any questions regarding this report, please contact me .
Yours very truly,
ENERGY FUELS RESOURCES (USA) INC .
Kathy Weinel
Director, Regulatory Compliance
CC: David Frydenlund
Logan Shumway
Scott Bakken
Garrin Palm er
Jordan App
Dawn Kolkman
DRC-2024-006535
August 7, 2024
Sent VIA EXPEDITED DELIVERY
Mr. Doug Hansen
Director
Division of Waste Management and Radiation Control
Utah Department of Environmental Quality
195 North 1950 West
Salt Lake City, UT 84116
Energy Fuels Resources (USA) Inc.
225 Union Blvd. Suite 600
Lakewood, CO, US, 80228
303 97..t 21-t0
WW\\ .energy fuels .corn
Re: Transmittal of 2nd Quarter 2024 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
2024 as required by the Stipulation and Consent Order, UDEQ Docket No. UGW-20-01 as well as two CDs, that
each contains a word searchable electronic copy of the report.
If you should have any questions regarding this report, please contact me .
Yours very truly,
ENERGY FUELS RESOURCES (USA) INC.
Kathy Weinel
Director, Regulatory Compliance
CC: David Frydenlund
Logan Shumway
Scott Bakken
Garrin Palmer
Jordan App
Dawn Kolkman
White Mesa Uranium Mill
Chloroform Monitoring Report
State of Utah
Stipulation and Consent Order Docket No. UGW-20-01
(April through June)
2024
Prepared by:
Energy Fuels Resources (USA) Inc.
225 Union Boulevard, Suite 600
Lakewood, CO 80228
August 7, 2024
TABLE OF CONTENTS
1.0 INTRODUCTION ................................................................................................. 1
2.0 CHLOROFORM MONITORING ....................................................................... 1
2.1 Samples and Measurements Taken During the Quarter ...................................... 1
2.1.1 Chloroform Monitoring ............................................................................... 1
2.1.2 Parameters Analyzed .................................................................................. .2
2.1.3 Groundwater Head Monitoring ................................................................... .2
2.2 Sampling Methodology and Equipment and Decontamination Procedures ........ 3
2.2.1 Decontamination Procedures ....................................................................... 3
2.2.2 Well Purging and Depth to Groundwater ................................................... .4
2.2.3 Sample Collection ........................................................................................ 5
2.3 Field Data ............................................................................................................. 5
2.4 Depth to Groundwater Data and Water Table Contour Map ....................... .' ....... 6
2.5 Laboratory Results ............................................................................................... 6
2.5 .1 Copy of Laboratory Results ......................................................................... 6
2.5.2 Regulatory Framework ................................................................................ 6
3.0 QUALITY ASSURANCE AND DATA VALIDATION .................................... 6
3 .1 Field QC Samples ................................................................................................ 7
3.2 Adherence to Mill Sampling SOPs ...................................................................... 7
3.3 Analyte Completeness Review ............................................................................ 7
3.4 Data Validation .................................................................................................... 7
3.4.1 Field Data QA/QC Evaluation ..................................................................... 8
3.4.2 Holding Time Evaluation ............................................................................ 9
3.4.3 Receipt Temperature Evaluation ................................................................. 9
3.4.4 Analytical Method Checklist ....................................................................... 9
3.4.5 Reporting Limit Evaluation ......................................................................... 9
3 .4.6 Receipt pH Evaluation ............................................................................... 10
3 .4. 7 Trip Blank Evaluation ................................................................................ 10
3.4.8 QA/QC Evaluation for Sample Duplicates ................................................ 10
3.4.9 Rinsate Sample Check ............................................................................... 10
3 .4.10 Other Laboratory QA/QC .......................................................................... 10
4.0 INTERPRETATION OF DATA ........................................................................ 12
4.1 Interpretation of Groundwater Levels, Gradients and Flow Directions ............ 12
4.1.1 Current Site Groundwater Contour Map ................................................... 12
4.1.2 Comparison of Current Groundwater Contour Maps to Groundwater
Contour Maps for Previous Quarter ......................................................... 19
4.1.3 Hydrographs .............................................................................................. 12
4.1.4 Depth to Groundwater Measured and Groundwater Elevation ................. 21
4.1.5 Evaluation of the Effectiveness of Hydraulic Capture ............................. 21
4.2 Review of Analytical Results ............................................................................ 26
4.2.1 Current Chloroform Isoconcentration Map ............................................... 26
4.2.2 Chloroform Concentration Trend Data and Graphs .................................. 26
4.2.3 Interpretation of Analytical Data ............................................................... 27
5.0 LONG TERM PUMP TEST AT MW-4, MW-26, TW4-19, TW4-20, AND
TW4-4 OPERATIONS REPORT ...................................................................... 26
5.1 Introduction ........................................................................................................ 31
5.2 Pump Test Data Collection ................................................................................ 31
5.3 Water Level Measurements ............................................................................... 32
5.4 Pumping Rates and Volumes ............................................................................. 32
5.4.1 TW4-41 ............................................................. Error! Bookmark not defined.
5.5 Mass Removed and Plume Residual Mass ........................................................ 32
5.6 Inspections ......................................................................................................... 33
5.7 Conditions That May Affect Water Levels in Piezometers ............................... 34
6.0 CORRECTIVE ACTION REPORT .................................................................. 34
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 ........................................................................................................... 36
8.0 CONCLUSIONS AND RECOMMENDATIONS ............................................ 36
9.0 ELECTRONIC DATA FILES AND FORMAT ............................................... 36
10.0 SIGNATURE AND CERTIFICATION ........................................................... .43
LIST OF TABLES
Table 1 Summary of Wells Sampling for the Period
11
INDEX OF TABS
Tab A Site Plan and Perched Well Locations White Mesa Site
Tab B Order of Sampling and Field Data Worksheets
Tab C Weekly and Monthly Depth to Water Data
Tab D Kriged Current Quarter Groundwater Contour Map, Capture Zone Map, Capture
Zone Details Map and Depth to Water Data
Tab E Kriged Previous Quarter Groundwater Contour Map
Tab F Depths to Groundwater and Elevations and Hydrographs of Groundwater
Elevations over Time for Chloroform Monitoring Wells
Tab G Chloroform Mass Removed and Volume Pumped in Chloroform Pumping Wells
over Time
Tab H Laboratory Analytical Reports
Tab I Quality Assurance and Data Validation Tables
1-1 Field Data QA/QC Evaluation
1-2 Holding Time Evaluation
1-3 Receipt Temperature Check
1-4 Analytical Method Check
1-5 Reporting Limit Evaluation
1-6 Trip Blank Evaluations
1-7 QA/QC Evaluation for Sample Duplicates
1-8 QC Control Limits for Analyses and Blanks
1-9 Rinsate Check
Tab J Kriged Current Quarter Chloroform lsoconcentration Map
Tab K Analyte Concentration Data and Chloroform Concentration Trend Graphs over
Time
Tab L Contour Map Based Chloroform Plume Mass Calculations and Data Over Time
Tab M CSV Transmittal Letter
Tab N Exceedance Notices for the Reporting Period
111
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 parties have agreed to the GCAP found in Attachment 1, of the final
Stipulation and Consent Order ("SCO") dated September 14, 2015.
This is the Quarterly Chloroform Monitoring Report for the second quarter of 2024 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
1
Chloroform monitoring was performed in all of the required chloroform monitoring wells. Table
1 provides an overview of all wells sampled during the quarter, along with the date samples were
collected from each well, and the date(s) when analytical data were received from the contract
laboratory. Table 1 also identifies equipment rinsate samples collected, as well as sample
numbers associated with the deionized field blank ("DIFB") and any required duplicates.
2.1.2 Parameters Analyzed
Wells sampled during this reporting period were analyzed for the following constituents:
• Chloroform
• Chloromethane
• Carbon tetrachloride
• Methylene chloride
• Chloride
• Nitrate plus Nitrite as Nitrogen
Use of analytical methods is consistent with the requirements of the Chloroform Investigation
Monitoring Quality Assurance Program (the "Chloroform QAP") attached as Appendix A to the
White Mesa Uranium Mill Groundwater Monitoring QAP Revision 7.7, dated February 15,
2022.
2.1.3 Groundwater Head Monitoring
Depth to groundwater was measured in the following wells and/or piezometers, pursuant to Part
I.E.3 of the Groundwater Discharge Permit (the "GWDP"):
• The quarterly groundwater compliance monitoring wells
• Existing monitoring well MW-4 and all of the temporary chloroform investigation wells
• Piezometers P-1, P-2, P-3A, P-4 and P-5
• MW-20 and MW-22 ....
• Nitrate monitoring wells
• The DR piezometers that were installed during the Southwest Hydrologic Investigation
In addition to the above, depth to water measurements are routinely observed in conjunction with
sampling events for all wells sampled during quarterly and accelerated efforts, regardless of the
sampling purpose.
Weekly and monthly depth to groundwater measurements were taken in the chloroform pumping
wells MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-21, TW4-37, TW4-39, TW4-40,
and TW4-41 and the nitrate pumping wells TW4-22, TW4-24, TW4-25, and TWN-02. In
addition, monthly water level measurements were taken in non-pumping wells TW4-3 through
TW4-10, TW4-12 through TW4-14, TW4-16, TW4-18, TW4-26 through TW4-36, TW4-38,
TW4-42, TW4-43, MW-27, MW-30, MW-31, TWN-1, TWN-3, TWN-4, TWN-7, and TWN-18.
2
2.2 Sampling Methodology and Equipment and Decontamination Procedures
EFRI completed, and transmitted to DWMRC on May 25, 2006, a revised QAP for sampling
under the Mill's GWDP. While the water sampling conducted for chloroform investigation
purposes has conformed to the general principles set out in the QAP, some of the requirements in
the QAP were not fully implemented prior to DWMRC's approval of the QAP, for reasons set
out in correspondence to DWMRC dated December 8, 2006. Subsequent to the delivery of the
December 8, 2006 letter, EFRI discussed the issues brought forward in the letter with DWMRC
and has received correspondence from DWMRC about those issues. In response to DWMRC's
letter and subsequent discussions with DWMRC, EFRI modified the chloroform Quality
Assurance ("QA") procedures within the Chloroform QAP. The Chloroform QAP describes the
requirements of the chloroform investigation program and identifies where they differ from the
Groundwater QAP. On June 20, 2009 the Chloroform QAP was modified to require that the
quarterly chloroform reports include additional items specific to EFRI's ongoing pump testing
and chloroform capture efforts. The Groundwater QAP as well as the Chloroform QAP were
revised again on June 6, 2012, August 15, 2017, July 23, 2018, May 14, 2019, August 22, 2019,
and February 15, 2022. The revised Groundwater QAP and Chloroform QAP, Revision 7.7 was
approved by DWMRC on March 31, 2022.
The sampling methodology, equipment and decontamination procedures used in the chloroform
contaminant investigation, as summarized below, are consistent with the approved QAP and the
Chloroform QAP.
2.2.1 Decontamination Procedures
Non-dedicated sampling equipment is decontaminated prior to use as described in the DWMRC-
approved QAP and as summarized below.
The water level meter is decontaminated with a detergent/deionized ("DI") water mixture by
pouring the solutions over the water level indicator. The water level meter is then rinsed with DI
water.
The field measurement instrument probe is decontaminated by rinsing with DI water prior to
each calibration. The sample collection cup is washed with a detergent/DI water solution and
rinsed with fresh DI water prior to each calibration.
The non-dedicated purging pump is decontaminated after each use and prior to use at subsequent
sampling locations using the following procedures:
a) the pump is submerged into a 55-gallon drum of nonphosphate detergent/DI water mixture;
b) the detergent/DI water solution is pumped through the pump and pump outlet lines;
c) the pump is submerged into a 55-gallon drum of DI water;
d) the DI water solution is pumped through the pump and pump outlet lines;
3
2.2.2 Well Purging and Depth to Groundwater
The non-pumping wells are purged prior to sampling by means of a portable pump. A list of the
wells in order of increasing chloroform concentration is generated quarterly. The order for
purging the non-pumping wells is thus established. The list is included with the Field Data
Worksheets under Tab B. Mill personnel start purging with all of the non-detect wells and then
move to the wells with detectable chloroform concentrations starting 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 parameter's 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
(9 -10 gpm pump) is then lowered to the screened interval in the well and purging is started.
4
The purge rate is measured for the well by using a calibrated 5 gallon bucket. This purging
process is repeated at each well location moving from least contaminated to the most
contaminated well. All wells are capped and secured prior to leaving the sampling location.
Wells with dedicated pumps are sampled when the pump is in the pumping mode. If the pump is
not pumping at the time of sampling, it is manually switched on by the Mill Personnel. The well
is pumped for approximately 5 to 10 minutes prior to the collection of the field parameters. Per
the approved QAP, one set of parameters is collected. Samples are collected following the
measurement of one set of field parameters. After sampling, the pump is turned off and allowed
to resume its timed schedule.
2.2.3 Sample Collection
Prior to sampling, a cooler with ice is prepared. The trip blank is also gathered at that time (the
trip blank for these events is provided by the analytical laboratory). Once Mill Personnel arrive
at the well sites, labels are filled out for the various samples to be collected. All personnel
involved with the collection of water and samples are then outfitted with disposable gloves.
Chloroform investigation samples are collected by means of disposable hailers.
Mill personnel use a disposable bailer to sample each well that does not have a dedicated pump.
The bailer is attached to a reel of approximately 150 feet of nylon rope and then lowered into the
well. After coming into contact with the water, the bailer is allowed to sink into the water in
order to fill. Once full, the bailer is reeled up out of the well and the sample bottles are filled as
follows:
• Volatile Organic Compound ("VOC") samples are collected first. This sample consists
of three 40 ml vials provided by the Analytical Laboratory. The VOC sample is not
filtered and is preserved with HCl;
• A sample for nitrate/nitrite is then collected. This sample consists of one 250 ml. bottle
that is provided by the Analytical Laboratory. The nitrate/nitrite sample is not filtered
and is preserved with H2SO4;
• A sample for chloride is then collected. This sample consists of one 500 ml. bottle that is
provided by the Analytical Laboratory. The chloride sample is not filtered and is not
chemically preserved.
After the samples have been collected for a particular well, the bailer is disposed of and the
samples are placed into the cooler that contains ice. The well is then recapped and Mill personnel
proceed to the next well.
2.3 Field Data
Attached under Tab B are copies of the Field Data Worksheets that were completed during the
quarter for the chloroform contaminant investigation monitoring wells identified in paragraph
2.1.1 above, and Table 1.
5
2.4 Depth to Groundwater Data and Water Table Contour Map
Attached under Tab C are copies of the Depth to Water Sheets for the weekly monitoring of
MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-22, TW4-24, TW4-
25, TW4-37, TW4-39, TW4-40, TW4-41 and TWN-2 as well as the monthly depth to
groundwater data for the chloroform contaminant investigation wells and the non-pumped wells
measured during the quarter. Depth to groundwater measurements that were utilized for
groundwater contours are included on the Quarterly Depth to Water Worksheet at Tab D of this
report, along with the kriged groundwater contour map for the current quarter generated from
this data. A copy of the kriged groundwater contour map generated from the previous quarter's
data is provided under Tab E.
2.5 Laboratory Results
2.5.1 Copy of Laboratory Results
All analytical results were provided by Chemtech-Ford Analytical Laboratory ("CTF"). Table 1
lists the dates when analytical results were reported to the Director, Regulatory Compliance for
each sample.
Results from the analyses of samples collected for this quarter's chloroform contaminant
investigation are provided under Tab Hof this Report. Also included under Tab Hare the results
of the analyses for duplicate samples, the DIFB, and rinsate samples for this sampling effort, as
identified in Table 1, as well as results for trip blank analyses required by the Chloroform QAP.
2.5.2 Regulatory Framework
As discussed in Section 1.0, above, the SCO triggered a series of actions on EFRI's part. In
addition to the monitoring program, EFRI has equipped one nitrate well and fifteen chloroform
wells with pumps to recover impacted groundwater and has initiated recovery of chloroform
from the perched zone.
Sections 4.0 and 5.0, below, interpret the groundwater level and flow information, contaminant
analytical results, and pump test data to assess effectiveness of EFRI's chloroform capture
program.
3.0 QUALITY ASSURANCE AND DATA VALIDATION
The Director, Regulatory Compliance performed a QA/Quality Control ("QC") review to
confirm compliance of the monitoring program with requirements of the QAP. As required in the
QAP, data QA includes preparation and analysis of QC samples in the field, review of field
procedures, an analyte completeness review, and QC review of laboratory methods and data.
Identification of field QC samples collected and analyzed is provided in Section 3 .1. Discussion
of adherence to Mill sampling Standard Operating Procedures ("SOPs") is provided in Section
3.2. Analytical completeness review results are provided in Section 3.3. The steps and tests
applied to check laboratory data QA/QC are discussed in Sections 3.4.4 through 3.4.9 below.
6
The analytical laboratory has provided summary reports of the analytical QA/QC measurements
necessary to maintain conformance with National Environmental Laboratory Accreditation
Conference ("NELAC") certification and reporting protocol. The Analytical Laboratory QA/QC
Summary Reports, including copies of the Mill's Chain of Custody and Analytical Request
Record forms for each set of Analytical Results, follow the analytical results under Tab H.
Results of the review of the laboratory QA/QC information are provided under Tab I and are
discussed in Section 3.4, below.
3.1 Field QC Samples
The following QC samples were generated by Mill personnel and submitted to the analytical
laboratory in order to assess the quality of data resulting from the field sampling program.
Field QC samples for the chloroform investigation program consist of one field duplicate sample
for each 20 samples, a trip blank for each shipped cooler that contains VOCs, one DIFB and
rinsate samples.
During this quarter, three duplicate samples were collected as indicated in Table 1. The
duplicates were sent blind to the analytical laboratory and analyzed for the same parameters as
the chloroform wells.
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.
3.4 Data Validation
The QAP and GWDP identify the data validation steps and data QC checks required for the
chloroform monitoring program. Consistent with these requirements, the Director, Regulatory
Compliance performed the following evaluations: a field data QA/QC evaluation, a holding time
7
check, a receipt temperature check, an analytical method check, a reporting limit evaluation, a
trip blank check, a QA/QC evaluation of sample duplicates, a QC Control Limit check for
analyses and blanks including the DIFB and a rinsate sample check. Each evaluation is discussed
in th_e following sections. Data check tables indicating the results of each test are provided under
Tab I.
3.4.1 Field Data QA/QC Evaluation
The Director, Regulatory Compliance performs a review of the field recorded parameters to
assess their adherence with QAP requirements. The assessment involved review of two sources
of information: the Field Data Sheets and the Quarterly Depth to Water summary sheet. Review
of the Field Data Sheets addresses well purging volumes and measurement of field parameters
based on the requirements discussed in section 2.2.1 above. The purging technique employed
determines the requirements for field parameter measurement and whether stability criteria are
applied. Review of the Depth to Water data confirms that all depth measurements used for
development of the groundwater contour maps were conducted within a five-day period as
indicated by the measurement dates in the summary sheet under Tab D. The results of this
quarter's review of field data are provided under Tab I.
Based upon the review of the field data sheets, the purging and field measurements were
completed in conformance with the QAP requirements. A summary of the purging techniques
employed and field measurements taken is described below:
Purging Two Casing Volumes with Stable Field Parameters (within 10% RPO)
Wells TW4-5, TW4-8, TW4-9, TW4-16, MW-32, TW4-18, TW4-23, TW4-32, and TW4-38
were sampled after two casing volumes were removed. Field parameters (pH, specific
conductivity , turbidity, water temperature, DO, and redox potential) were measured during
purging. All field parameters for this requirement were stable within 10% RPD.
Purging a Well to Dryness and Stability of a Limited Li t 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% RPO under the QAP.
The QAP requirements for stabilization were met.
Continuously Pumped Wells
Wells MW-4, TW4-l, TW4-2, TW4-4, TW4-11, MW-26, TW4-19, TW4-21, TW4-22, TW4-24,
TW4-25, TW4-37, TW4-39, TW4-40, and TW4-41 are continuously pumped wells. These wells
are pumped on a set schedule per the remediation plan and are considered sufficiently evacuated
to immediately collect a sample.
During review of the field data sheets, the Director, Regulatory Compliance confirmed that
sampling personnel consistently recorded depth to water to the nearest 0.01 foot.
8
The review of the field sheets for compliance with QAP requirements resulted in the
observations noted below. The QAP requirements in Attachment 2-3 specifically state that field
parameters must be stabilized to within 10% over at least 2 consecutive measurements for wells
purged to 2 casing volumes or purged to dryness. The QAP Attachment 2-3 states that turbidity
should be less than 5 NTU prior to sampling unless the well is characterized by water that has a
higher turbidity. The QAP Attachment 2-3 does not require that turbidity measurements be less
than 5 NTU prior to sampling. As such, the noted observations below regarding turbidity
measurements greater than 5 NTU are included for information purposes only.
Wells TW4-2, TW4-8, TW4-9, TW4-16, TW4-18, TW4-32, TW4-39 and, MW-32 exceeded the
QAP's 5 NTU goal. EFRI's letter to DWMRC of March 26, 2010 discusses further why turbidity
does not appear to be an appropriate parameter for assessing well stabilization. In response to
DWMRC's subsequent correspondence dated June 1, 2010 and June 24, 2010, EFRI completed a
monitoring well redevelopment program. The redevelopment report was submitted to DWMRC
on September 30, 2011. DWMRC responded to the redevelopment report via letter on November
15, 2012. Per the DWMRC letter dated November 15, 2012, the field data generated this quarter
are compliant with the turbidity requirements of the approved QAP.
3.4.2 Holding Time Evaluation
QAP Table 1 identifies the method holding times for each suite of parameters. Sample holding
time checks are provided in Tab I. The samples were received and analyzed within the required
holding times.
3.4.3 Receipt Temperature Evaluation
Chain of Custody sheets were reviewed to confirm compliance with the QAP requirement which
specifies that samples be received at 6°C or lower. Sample temperatures checks are provided in
Tab I. The samples were received within the required temperature limit.
3.4.4 Analytical Method Checklist
The analytical methods reported by the laboratory were checked against the required methods
enumerated in the Chloroform QAP. Analytical method checks are provided in Tab I. The
analytical methods were consistent with the requirements of the Chloroform QAP.
3.4.5 Reporting Limit Evaluation
The analytical method reporting limits reported by the laboratory were checked against the
reporting limits enumerated in the Chloroform QAP. Reporting Limit Checks are provided under
Tab I. The analytes were measured and reported to the required reporting limits; several sets of
sample results had the reporting limit raised for at least one analyte due to matrix interference
and/or sample dilution. In these cases, the reported value for the analyte was higher than the
increased detection limit.
9
3.4.6 Receipt pH Evaluation
Appendix A of the QAP states that volatile samples are required to be preserved and arrive at the
laboratory with a pH less than 2. A review of the laboratory data revealed that volatile samples
were received at the laboratory with a pH less than 2.
3.4. 7 Trip Blank Evaluation
Trip blank results were reviewed to identify any VOC contamination resulting from transport of
the samples. Trip blank checks are provided in Tab I. All of the trip blank samples were
nondetect.
3.4.8 QA/QC Evaluation for Sample Duplicates
Section 9.1.4 a) of the QAP states that RPDs will be calculated for the comparison of duplicate
and original field samples. The QAP acceptance limits for RPDs between the duplicate and
original field sample is less than or equal to 20% unless the measured results are less than 5
times the required detection limit. This standard is based on the EPA Contract Laboratory
Program National Functional Guidelines for Inorganic Data Review, February 1994, 9240.1-05-
01 as cited in the QAP. The RPDs are calculated for the duplicate pairs for all analytes regardless
of whether or not the reported concentrations are greater than 5 times the required detection
limits; however, data are considered noncompliant only when the results are greater than 5 times
the reported detection limit and the RPD is greater than 20%. The additional duplicate
information is provided for information purposes.
The duplicate results were within a 20% RPD in the samples. 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 TW4-16R had a reported chloroform detections of 2.0 ug/L for
chloroform. The well sampled before TW 4-16R was TW 4-18 which had a detection 49 .3 ug/L
chloroform. TW4-16 had a reported chloroform detections of 2.0 ug/L for chloroform. The
rinsate blank results for TW 4-16R were inside acceptance limits for the rinsate blank results.
Rinsate blank sample TW4-32R had a reported detection of 12.6 ug/L for chloroform. The well
sampled before TW4-32R was TW4-13 which had no detection of chloroform. The result for
TW4-32 was not detected. The rinsate blank results for TW4-32R were outside acceptance limits
for the rinsate blank results because the rinsate blank results were not one order of magnitude
less than the associated sample results (either TW4-13 or TW4-32) The rinsate samples with
positive detections are likely the result of contributions from the DI system and not the result of
cross contamination as indicated by the positive result in TW4-32R.
10
The DI blank from the on-site DI system which generates the water for rinsate blank samples
was 10.0 ug/L. 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.
3.4.10 Other Laboratory QA/QC
Section 9.2 of the QAP requires that the laboratory's QA/QC Manager check the following items
in developing data reports: (1) sample preparation information is correct and complete, (2)
analysis information is correct and complete, (3) appropriate analytical laboratory procedures are
followed, (4) analytical results are correct and complete, (5) QC samples are within established
control limits, (6) blanks are within QC limits, (7) special sample preparation and analytical
requirements have been met, and (8) documentation is complete. In addition to other laboratory
checks described above, EFRI's Director, Regulatory Compliance rechecks QC samples and
blanks (items (5) and (6)) to confirm that the percent recovery for spikes and the relative percent
difference for spike duplicates are within the method-specified acceptance limits, or that the case
narrative sufficiently explains any deviation from these limits. Results of this quantitative check
are provided in Tab I.
The lab QA/QC results met these specified acceptance limits except as noted below.
The QAP, Section 8.1.2 states that an MS/MSD pair may be analyzed with each analytical batch
depending on the analytical method specifications. The QAP does not specify acceptance limits
for the MS/MSD pair, and the QAP does not specify that the MS/MSD pair be prepared on EFRI
samples only. Acceptance limits for MS/MSDs are set by the laboratories. The review of the
information provided by the laboratories in the data packages verified that the specifications in
the analytical methods to analyze either an MS or MS/MSD pair with each analytical batch were
met as applicable to each method. While the QAP does not require it, the recoveries were
reviewed for compliance with the laboratory established acceptance limits. The QAP does not
require this level of review and the results of this review are provided for information only.
The information from the Laboratory QA/QC Summary Reports indicates that the MS/MSDs
recoveries and the associated RPDs for the samples were within acceptable laboratory limits
except as indicated in Tab I. The data recoveries and RPDs which are outside the laboratory
established acceptance limits do not affect the quality or usability of the data because the
recoveries and RPDs above or below the acceptance limits are indicative of matrix interference
most likely caused by other constituents in the samples. Matrix interferences are applicable to
the individual sample results only. The specifications in the analytical methods to analyze a
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
11
compounds except as noted in Tab I. The surrogates that were outside of acceptance limits were
above the upper limits. High surrogate recoveries indicate a high bias to the sample results and
as such have no effect on the usability of the data. 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 all Laboratory
Control recoveries were within acceptance limits for the quarter as indicated in Tab I.
4.0 INTERPRETATION OF DATA
4.1 Interpretation of Groundwater Levels, Gradients and Flow Directions.
4.1.1 Current Site Groundwater Contour Map
The water level contour maps (See Tab D) indicate that perched water flow ranges from
generally southwesterly beneath the Mill site and tailings cells to generally southerly along the
eastern and western margins of White Mesa south of the tailings management system.
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
12
the decay of the associated groundwater mound. EFRI and its consultants anticipated these
changes and discussed these and other potential effects with DWMRC in March 2012 and May
2013.
The impacts associated with cessation of water delivery to the northern ponds were expected to
propagate downgradient (south and southwest) over time. Wells close to the ponds were
generally expected to be impacted sooner than wells farther downgradient of the ponds.
Therefore, constituent concentrations were generally expected to increase in downgradient wells
close to the ponds before increases were detected in wells farther downgradient of the ponds.
Although such increases were anticipated to result from reduced dilution, the magnitude and
timing of the increases were anticipated to be, and have been, difficult to predict due to the
complex permeability distribution at the site and factors such as pumping and the rate of decay of
the groundwater mound. Because of these complicating factors, some wells completed in higher
permeability materials were expected to be impacted sooner than other wells completed in lower
permeability materials even though the wells completed in lower permeability materials were
closer to the ponds.
In general, chloroform and nitrate concentrations within and in the vicinity of the chloroform
plume appear to have been impacted to a greater extent than nitrate concentrations within and
adjacent to the nitrate plume. This behavior is reasonable considering that the chloroform plume
is generally more directly downgradient of and more hydraulically connected (via higher
permeability materials) to the northern wildlife ponds.
In addition, the southern wildlife pond is in relatively close proximity to the downgradient
(southern) extremity of the chloroform plume. Reduced recharge at the southern pond, and decay
of the associated groundwater mound, has been 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-l l, TW4-21 and TW4-37 (added
during 2015); TW4-39 (added during the fourth quarter of 2016); TW4-41 (added during the
13
second quarter of 2018); and TW4-40 (added during the second quarter of 2019). The overall
impact was expected to be generally higher constituent concentrations in these wells over time
until mass reduction resulting from pumping and natural attenuation eventually reduces
concentrations. Short-term changes in concentrations at pumping wells and wells adjacent to
pumping wells are also expected to result from changes in pumping conditions.
In addition to changes in the flow regime caused by wildlife pond recharge, perched flow
directions are locally influenced by operation of the chloroform and nitrate pumping wells. Well
defined cones of depression were typically evident in the vicinity of all chloroform pumping
wells except TW4-4 and TW4-37, which began pumping in the first quarter of 2010 and the
second quarter of 2015, respectively. The third quarter of 2018 was the first quarter that a well-
defined cone of depression was associated with TW 4-4, primarily the result of pumping at
adjacent well TW4-41.
The lack of well-defined capture associated with chloroform pumping well TW4-4 was
consistent prior to the third quarter of 2018, even though pumping since the first quarter of 2010
has depressed the water table in the vicinity of this well. The lack of a well-defined cone of
depression near 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 TW4-4. 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 TW4-4 is located at a transition from relatively high to
relatively low permeability conditions south and southeast of TW4-4. As will be discussed
below, the permeability of the perched zone at TW4-6, TW4-26, TW4-29, TW4-30, TW4-31,
TW4-33, TW4-34, and TW4-35 is one to two orders of magnitude lower than at TW4-4, and the
permeability at TW4-27 is approximately three orders of magnitude lower than at TW4-4.
Detecting water level drawdowns in wells immediately south and southeast of TW4-4 resulting
from TW4-4 pumping has also been complicated by a former, long-term increase in water levels
in this area that has been attributable to past wildlife pond recharge. Between the fourth quarter
14
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 TW 4-6 was reduced
to less than 0.5 feet/year suggesting that TW4-6 is within the hydraulic influence of TW4-4.
Water levels in wells currently within the chloroform plume south of TW4-4 (TW4-26, TW4-29
and TW4-40) are generally decreasing to stable. Note that water levels at TW4-30, which was
incorporated within the plume from the fourth quarter of 2020 through the second quarter of
2022, have been generally decreasing since 2020. Generally decreasing to stable water levels are
evident at TW4-26 and TW4-29 since the fourth quarter of 2013; and at TW4-40 since
installation in the first quarter of 2018. The water level in TW4-6 (remaining outside the plume
again this quarter) has also trended generally downward since the fourth quarter of 2013;
likewise the water level at TW4-33 (outside the plume since the first quarter of 2021) has trended
downward since 2013. These generally downward trends are attributable to both the cessation of
water delivery to the wildlife ponds and pumping. Although water levels at some of the wells
marginal to the chloroform plume such as TW4-14, TW4-27 and TW4-31 were generally
increasing until about the first quarter of 2018, these water levels now appear to be relatively
stable to decreasing. Water level trends at TW4-30 have been similar to those at TW4-27.
These spatially variable water level trends likely result from pumping conditions, the
permeability distribution, and distance from the wildlife ponds. Wells that are relatively
hydraulically isolated ( due to completion in lower permeability materials or due to intervening
lower permeability materials) and that are more distant from pumping wells and the wildlife
ponds, are expected to respond more slowly to pumping and reduced recharge than wells that are
less hydraulically isolated and are closer to pumping wells and the wildlife ponds. Wells that are
more hydraulically isolated will also respond more slowly to changes in pumping.
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 TW 4-6 and lower to an even greater extent than the water
level at TW4-4. However, since the first quarter of 2018, as a result of pumping at TW4-41
(adjacent to TW4-4), and declining water levels at TW4-6, the water level at TW4-14 was
typically higher than the water levels at both TW 4-4 and TW 4-6. During the current quarter the
water level at TW4-14 (approximately 5535.1 feet above mean sea level ["ft amsl"]) is more than
7 feet higher than the water level at TW4-6 (approximately 5527.6 ft amsl), and is more than 7
feet higher than the water level at TW4-4 (approximately 5527.6 ft. amsl).
The static water levels at wells TW 4-14 and downgradient well TW 4-27 (installed south of
TW 4-14 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
15
has been detected at more recently installed temporary perched wells TW4-29 (located south of
TW4-27) and TW4-33 (located between TW4-4 and TW4-29).
Prior to the installation of TW4-27, the persistently low water level at TW4-14 was considered
anomalous because it appeared to be downgradient of all three wells TW4-4, TW4-6, and TW4-
26, yet chloroform had not been detected at TW4-14. Chloroform had apparently migrated from
TW4-4 to TW4-6 and from TW4-6 to TW4-26. This suggested that TW4-26 was actually
downgradient of 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
(5525.5 feet amsl) is, however, lower than water levels at adjacent wells TW4-6 (5527.6 feet
amsl) and TW4-23 (5531.1 feet amsl), as shown in the detail water level map under Tab D.
Hydraulic tests indicate that the permeability at TW4-27 is an order of magnitude lower than at
TW4-6 and three orders of magnitude lower than at TW4-4 (see Hydro Geo Chem, Inc. [HGC],
September 20, 2010: Hydraulic Testing of TW4-4, TW4-6, and TW4-26, White Mesa Uranium
Mill, July 2010; and HGC, November 28, 2011: Installation, Hydraulic Testing, and Perched
Zone Hydrogeology of Perched Monitoring Well TW4-27, White Mesa Uranium Mill Near
Blanding, Utah). Past similarity of water levels at TW4-14 and TW4-27, and the low
permeability estimate at TW4-27, suggested that both wells were completed in materials having
lower permeability than nearby wells. The low permeability condition likely reduced the rate of
long-term water level increase at TW4-14 and TW4-27 compared to nearby wells, yielding water
levels that appeared anomalously low. This behavior is consistent with hydraulic test data
collected from more recently installed wells TW4-29, TW4-30, TW4-31, TW4-33, TW4-34 and
TW4-35, which indicate that the permeability of these wells is one to two orders of magnitude
higher than the permeability of TW4-27 (see: HGC, January 23, 2014, Contamination
Investigation Report, TW4-12 and TW4-27 Areas, White Mesa Uranium Mill Near Blanding,
Utah; and HGC, July 1, 2014, Installation and Hydraulic Testing of TW4-35 and TW4-36,
White Mesa Uranium Mill Near Blanding, Utah [As-Built Report]). Hydraulic tests also indicate
that the permeability at TW4-36 is slightly higher than but comparable to the low permeability at
TW4-27, suggesting that TW4-36, TW4-14 and TW4-27 are completed in a continuous low
permeability zone.
The current quarterly water level at TW4-27 (5528.3 ft. amsl) is nearly 7 feet lower than the
water level at TW4-14 (5535.1 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 TW 4-14 due to factors that include: closer proximity to the
northern pond seepage source; and a smaller thickness of low permeability materials separating
TW4-14 from surrounding higher permeability materials. In addition, hydraulic gradients
16
between TW 4-14 and surrounding higher permeability materials were relatively large and were
consistently directed toward TW 4-14 prior to TW 4-41 pumping. Slowing of the rates of water
level increase at TW4-14 (since 2015) and TW4-27 (since early 2014), and relative stabilization
since about the first quarter of 2018, are attributable to changes in hydraulic gradients between
these wells and surrounding higher permeability materials.
In addition, water levels in this area are affected by reduced recharge at the southern wildlife
pond and the decay of the associated groundwater mound. The decay of the mound is expected to
contribute to changes in hydraulic gradients between the low permeab.ility materials penetrated
by TW4-14 and TW4-27 and the surrounding higher permeability materials. Because TW4-27 is
closer to the southern wildlife pond than TW4-14, changes in hydraulic gradients attributable to
decay of the southern groundwater mound are expected to impact TW 4-2 7 sooner and to a
greater extent than TW4-14, consistent with the lower rate of increase in water levels at TW4-27,
and the earlier reduction in the rate of increase (since early 2014) as discussed above).
The low permeability at TW4-14 and TW4-27 is expected to retard the transport of chloroform
to these wells (compared to nearby wells). As will be discussed in Section 4.2.3, TW4-14 and
TW4-27 remain outside the plume with current quarter chloroform concentrations of less than 1
µg/L and 3 µg/L, respectively.
Chloroform exceeding 70 µg/L detected at TW4-29 and TW4-33 since their installation in 2013
indicates that, in addition to migrating south from TW4-4 to TW4-6 and TW4-26, chloroform
also migrated along a relatively narrow path to the southeast from the vicinity of 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 TW 4-14 almost directly downgradient of TW 4-4 . 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. (Note that, although
concentrations at TW4-29 still exceed 70 µg/L, concentrations at TW4-33 have remained below
70 µg/L since the end of 2020.)
Chloroform at TW4-30 exceeded 70 µg/L for the first time during the fourth quarter of 2020;
dropped below 70 µg/L during the third quarter of 2022; and was detected at approximately 3 8
µg/L this quarter. Consequently, TW4-30 again bounds the plume immediately to the east.
Chloroform was not detected at relatively recently installed bounding well TW4-43 (located east-
southeast ofTW4-30); nor TW4-31 (located east of TW4-27).
Data from wells within and adjacent to the southern portion of the chloroform plume indicate
that:
1. Chloroform exceeding 70 µg/L at TW4-29 is bounded by concentrations below 70 µg/L at
wells TW4-6, TW4-23, TW4-27, TW4-33 , TW4-34, TW4-35 and TW4-42; and, as
discussed above, TW4-30 (with a concentration this quarter of approximately 38 µg/L)
again bounds the plume immediately to the east. Although previously downgradient of
17
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 ofTW4-30.
2. Although historically not detected at TW4-34 and TW4-35, chloroform (at low
concentrations) has been detected relatively recently at both wells. Chloroform was first
detected at TW4-34 during the third quarter of 2022 and at TW4-35 during the third
quarter of 2023. After the first detection, chloroform has been detected at TW4-34 four
times, including during the current quarter (at a concentration of 1.4 µg/L). Chloroform
has been detected at TW4-35 each quarter since the first detection, including during the
current quarter (at a concentration of 2.2 µg/L).
3. 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 historically detected at TW4-33 are due to its
closer proximity to TW4-4.
4. Chloroform concentrations at TW4-26 exceeded 70 µg/L for the first time during the
second quarter of 2017. Chloroform at TW4-26 is bounded by concentrations below 70
µg/L at TW4-6 and TW4-23 (located up-to cross-gradient of TW4-26); and at TW4-34
(located generally cross-gradient of TW4-26). Chloroform has not been detected at
TW4-23; and, as discussed above, after its first detection during the third quarter of 2022,
chloroform has been detected at TW4-34 four additional times, including during the
current quarter (at a concentration of 1.4 µg/L). 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 ofTW4-40 in April, 2019. TW4-42 is generally down to cross-gradient of
TW4-26 and downgradient of TW4-40 and bounds the chloroform plume to the south.
TW4-4 pumping, enhanced by operation of adjacent pumping well TW4-41, has been expected
to eventually reduce chloroform at both TW4-29 and TW4-33 by cutting off the source. The
decrease at TW4-33 has been anticipated to be faster than at TW4-29 because TW4-33 is in
closer proximity to TW4-4 pumping. Such behavior would be analogous to the temporary
decreases in chloroform concentrations that occurred at TW4-6 and TW4-26 once TW4-4
pumping began (discussed in Section 4.2.3). Since installation in 2013, concentrations at TW4-
33 have been relatively stable to decreasing (and have generally been decreasing since 2018);
however, from the third quarter of 2014 until the second quarter of 2020, concentrations at TW4-
29 generally increased before subsequently stabilizing and decreasing.
This behavior suggests that chloroform migration has been arrested at TW4-33 by TW4-4 (and
TW4-41) pumping and that previously increasing chloroform at TW4-29 resulted from a remnant
of the plume that migrated past TW4-33 and generally toward TW4-30 (which was previously
downgradient of TW4-29). The influence of TW4-4 pumping at the distal end of the plume is
consistent with generally decreasing water levels at both TW4-29 and TW4-33. Pumping at
18
TW 4-41 since the second quarter of 2018 has been expected to help maintain or enhance this
decline.
Decreasing water level trends at TW4-29 and TW4-33 are also consistent with reduced wildlife
pond seepage. The decay of the groundwater mound associated with the southern wildlife pond,
which is 3 to 4 times closer to the southern extremity of the chloroform plume than the northern
ponds, is expected to impact water levels within and adjacent to this portion of the plume.
Reduced wildlife pond seepage, in particular, reduced seepage from the southern wildlife pond,
likely contributes to decreasing water level trends at both wells (since about the fourth quarter of
2013); temporarily increased concentrations at TW4-6 subsequent to the first quarter of 2014;
and increased concentrations at TW4-26 since the third quarter of 2016.
As the groundwater mound associated with the southern pond decays, groundwater flow
directions in the southern extremity of the plume have become more southerly, and plume
migration has turned more to the south. An increasingly southerly direction of plume migration
is consistent with water level changes in this area and increased concentrations at TW4-26.
In addition, generally decreasing concentrations at TW4-6 since the third quarter of 2015, and
generally increased concentrations at TW4-26 since the third quarter of 2016, suggest that TW4-
4 pumping has arrested chloroform migration between TW4-4 and TW4-6, and that increased
chloroform at TW4-26 results from a remnant of the plume that continues to migrate south from
TW4-6 to TW4-26. The enhancement of pumping in the vicinity of TW4-4 by the start-up of
TW 4-41 pumping in the second quarter of 2018 has been expected to increase this apparent
separation and to have resulted in concentrations at TW 4-6 dropping below 70 µg/L after the
second quarter of 2018. Furthermore, the initiation of pumping at TW4-40 during the second
quarter of 2019 is expected to reduce or prevent chloroform migration to the south of TW 4-40.
Small but detectable chloroform concentrations at TW4-14 (from the fourth quarter of 2014
through the first quarter of 2021; and during the third quarter of 2022) and at TW4-27 (since the
third quarter of 2015) suggest ongoing, but slow, downgradient migration of chloroform from the
southeastern extremity of the plume (near TW4-29 and TW4-33) into the low permeability
materials penetrated by TW4-14 and TW4-27. Pumping at TW4-41 is expected to reduce or
prevent future migration of chloroform toward these wells .
Ongoing, but slow, downgradient migration of chloroform from the southeastern extremity of the
plume into the vicinities of TW4-34 and TW4-35 is also consistent with the small, but
detectable, chloroform concentrations at these wells since the third quarters of 2022 and 2023,
respectively.
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 2024, as submitted with the
Chloroform Monitoring Report for the first quarter of 2024, is att~ched under Tab E. A
comparison of the water table contour maps for the current quarter (second quarter of 2024) to
the water table contour maps for the previous quarter (first quarter of 2024) indicates the
following: water level changes at the majority of site wells were small ( < 1 foot); and water
19
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-l, 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 TW 4-40 during the second quarter of 2019.
The drawdowns at chloroform pumping wells MW-4, TW4-1, TW4-2 and TW4-37; and nitrate
pumping wells TW4-25 and TWN-2 increased by more than 2 feet this quarter, whereas the
drawdown at nitrate pumping well TW4-24 decreased by more than 2 feet this quarter. 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 TW4-4, which began in the first
quarter of 2010, depressed the water table near TW4-4, but a well-defined cone of depression
was not clearly evident until the third quarter of 2018, likely due to variable permeability
conditions near TW 4-4 and the historically relatively low water level at adjacent well TW 4-14.
The expanded cone of depression associated with TW4-4 and adjacent pumping well TW4-41
since the initiation of pumping at TW 4-41 in the second quarter of 2018 has contributed to
southerly expansion of total pumping system capture. As discussed above, southerly expansion
of capture was additionally enhanced in the second quarter of 2019 by the initiation of pumping
at TW4-40.
The water levels at Piezometers 1 through 5; and at TWN-1 and TWN-4 decreased this quarter,
with a maximum decrease of approximately 0.74 ft at TWN-4. Water levels at these installations
typically decrease in response to 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.
Typically variable, the reported water level at MW-20 decreased by approximately 2.1 ft nearly
compensating for the approximately 2.3 ft increase last quarter. Water level variability at this
well has likely resulted from low permeability and variable intervals between purging/sampling
and water level measurement.
20
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.
Measurable water has not been reported at DR-12 since the end of 2021.
4.1.3 Hydrographs
Attached under Tab F are hydrographs showing groundwater elevation m 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, TW4-1 l, TW4-21 and TW4-37 since 2015; TW4-39 since the fourth quarter of 2016;
TW4-41 since the second quarter of2018; and TW4-40 since the second quarter of 2019. TW4-
20 was also operated as a pumping well from 2005 until August, 2020 when it collapsed and was
subsequently abandoned. The primary purpose of pumping the above wells is to reduce total
chloroform mass in the perched zone as rapidly as is practical.
The original pumping wells upgradient of TW 4-4 were chosen because 1) they were located in
areas of the perched zone having relatively high permeability and saturated thickness, and 2)
high concentrations of chloroform were detected at these locations. The relatively high
transmissivity of the perched zone in the vicinity of these original pumping wells resulted in the
wells having a relatively high productivity. The combination of relatively high productivity and
high chloroform concentrations allowed for a high rate of chloroform mass removal. TW 4-4 and
TW4-41 are located in a downgradient area having relatively high chloroform concentrations but
relatively small saturated thickness, and at a transition from relatively high to relatively low
permeability conditions downgradient of TW4-4. As with the other chloroform pumping wells,
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 TW4-
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
21
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 TW4-11. These wells began pumping
during the first quarter of 2015. As discussed in Section 4.1.1, although chloroform pumping
well TW4-4 became operational in 2010, the drawdown associated with TW4-4 was likely less
apparent due to variable permeability conditions near TW 4-4 and the persistently low water level
at adjacent well TW4-14. However, pumping at adjacent well TW4-41 since the second quarter
of 2018 has generally increased drawdowns in this area; the third quarter of 2018 was the first
quarter that a well-defined cone of depression was associated with TW4-4. As discussed in
Section 4.1.2 the combined pumping ofTW4-4 and TW4-41, enhanced by initiation of pumping
at TW4-40 during the second quarter of 2019, has contributed to southerly expansion of total
pumping system capture. Overall, the water level contour maps indicate effective capture of
water containing high chloroform concentrations in the vicinities of the pumping wells.
Compared to last quarter, both increases and decreases in water levels occurred at nitrate and
chloroform pumping wells, although changes in water levels in chloroform pumping wells MW-
26, TW4-4, TW4-11, TW4-19, TW4-21, TW4-39, TW4-40 and TW4-41; and nitrate pumping
well TW4-22 were less than two feet. Water level decreases occurred in chloroform pumping
wells MW4 (approximately 2.1 feet); TW4-1 (nearly 3.6 feet); TW4-2 (more than 6 feet); TW4-4
(approximately 0.45 feet); TW4-19 (more than 0.9 feet); TW4-21 (nearly 1.5 feet); TW4-37
(more than 5.6 feet); TW4-39 (approximately 1.3 feet); and TW4-41 (more than 0.3 feet); and in
nitrate pumping wells TW4-25 (approximately 2.1 feet); and TWN-2 (more than 3 feet). Water
level increases occurred in chloroform pumping wells MW-26 (approximately 1.5 feet); TW4-1 l
(nearly 0.8 feet); and TW4-40 (nearly 0.5 feet); and in nitrate pumping wells TW4-22
(approximately 0.75 feet); and TW4-24 (more than 2.5 feet).
Overall, the apparent combined capture area of the nitrate and chloroform pumping systems is
larger than last quarter.
The capture associated with nitrate pumping wells and chloroform pumping wells added since
the beginning of 2015 is expected to generally increase over time as water levels continue to
decline due to cessation of water delivery to the northern wildlife ponds and continued pumping.
Slow development of hydraulic capture in the vicinities of many wells is consistent with and
expected based on the relatively low permeability of the perched zone at the site.
The hydraulic capture effectiveness of both chloroform and nitrate pumping systems depends to
some extent on the continued productivity of chloroform and nitrate pumping wells. Decreases in
productivity since the third quarter of 2014 have been noted in chloroform pumping well TW 4-
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 2016 CACME Report (See HGC, March 31, 2016: Corrective Action Comprehensive
Monitoring Evaluation Report, White Mesa Uranium Mill, Near Blanding, Utah).
22
However, since 2016, as saturated thicknesses and hydraulic gradients within the plume continue
to decline, the 'background' flow through the chloroform plume has also declined. 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; however a general decline in
productivity of many of the other chloroform pumping wells (in particular, TW4-1, TW4-2,
TW4-11, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41) correlates to the general decline in
saturated thickness in these wells as discussed in the 2024 CACME report (See HGC, March 28,
2024: Corrective Action Comprehensive Monitoring Evaluation Report, White Mesa Uranium
Mill, Near Blanding, Utah). To account for the decrease in 'background' flow through the plume
caused by continuing reductions in saturated thicknesses and hydraulic gradients, the
'background' flow through the plume was recalculated as 2.24 gpm, thereby reducing the
amount of pumping needed to control the plume.
Pumping during the current quarter from wells within and immediately adjacent to the
chloroform plume (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 gpm.
The pumping calculation is based on the total volume pumped by the above wells over the 90
day quarter (521,046 gallons) and accounts for times that the pumps are off due to insufficient
water columns in the wells. Pumping from these wells exceeds the re-calculated background
flow of 2.24 gpm by nearly 1.8 gpm, or 80 %, which is adequate even considering the reduced
productivities of some wells and the abandonment of TW 4-20. 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
continuing to reduce the pumping needed to control the plume.
Chloroform concentrations at many locations have been or appear to be affected by changes
associated with reduced dilution from the wildlife ponds and nitrate pumping. For example,
increases in chloroform at TW4-22 and TW4-24 after these wells were converted to nitrate
pumping wells are attributable to westward migration of chloroform from the vicinity of TW 4-20
(now abandoned) toward these wells. The increase in concentration at TW4-8 from non-detect to
100 µg/L in the first quarter of 2014 is likely related to reduced dilution. The concentration at
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 TW4-6 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 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.
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 201 O; 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
23
removal and lowers hydraulic gradients, thereby reducing the rate of downgradient chloroform
migration and allowing natural attenuation to be more effective. Pumping at TW 4-4 was
implemented during the first quarter of 2010 to improve capture downgradient of TW 4-4 to the
extent allowable by the lower productivity conditions present in this area.
The beneficial effect of pumping TW 4-4 was demonstrated by the net decreases in TW 4-6
chloroform concentrations from 1,000 µg/L to 10.3 µg/L, and in TW4-26 from 13 µg/L to 4.2
µg/L, between the initiation of TW4-4 pumping and the second quarter of 2014. Concentrations
at these wells decreased substantially even though they did not unambiguously appear to be
within the hydraulic capture of 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 l
and TW 4-41. Regardless of whether TW 4-6 was demonstrably within the hydraulic capture of
TW4-4, pumping TW4-4, and more recently installed adjacent pumping well TW4-41, helps to
reduce chloroform migration to TW4-6, TW4-26, and other downgradient locations by the
mechanisms discussed above.
Likewise, pumping at other productive upgradient locations has a beneficial impact on
downgradient chloroform even if the downgradient chloroform is not completely within the
hydraulic capture of the productive upgradient well(s). For example, pumping at MW-26 likely
reduced chloroform concentrations at TW4-16 from a maximum of 530 µg/L in the second
quarter of 2004 to less than 70 µg/L by the fourth quarter of 2005, and maintained concentrations
below 70 µg/L until the second quarter of 2014, even though TW 4-16 appears to be beyond the
hydraulic capture of MW-26. Furthermore, the overall hydraulic capture of the chloroform
pumping system has expanded since initiation of pumping at wells TW 4-1, TW 4-2, TW 4-11,
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-l l, TW4-21, TW4-37 and TW4-39 likely halted the
mid-2013 to end of 2014 increase in concentration at TW4-16 from non-detect to 387 µg/L.
Concentrations at TW 4-16 dropped from 3 87 µg/L in the fourth quarter of 2014 to less than 70
µg/L by the second quarter of 2015. Although chloroform at TW 4-16 has been above and below
70 µg/L since 2014 and was detected at 89 µg/L this quarter, concentrations have been higher
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 ofTW4-27 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 TW 4-29 may have migrated around the low permeability area
defined by TW4-27, TW4-14 and TW4-36. The apparent migration pathway from TW4-4 to
TW 4-29 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.
24
TW4-4 pumping (augmented by pumping at adjacent well TW4-41) has been expected to reduce
chloroform at both TW4-33 and TW4-29 by cutting off the source, with the impact at TW4-33
anticipated to be greater than at TW4-29 because TW4-33 is in closer proximity to TW4-4 (and
TW4-41) pumping. By analogy, such behavior would be consistent with the decreases m
chloroform concentrations at TW4-6 and TW4-26 that occurred once TW4-4 pumping began.
However, for several quarters after installation, concentrations at both TW4-29 and TW4-33
were relatively stable (rather than decreasing). Between the third quarter of 2014 and the second
quarter of 2020, concentrations at TW4-29 generally increased; subsequently concentrations
stabilized then began to decrease. Over the same time period concentrations at TW4-33 remained
generally stable to decreasing. As discussed in Section 4.1.1, decreasing concentration trends at
both wells were eventually expected to occur. Since the third quarter of 2014, TW4-33
concentrations that have been relatively stable to decreasing; and TW4-29 concentrations that
generally increased before stabilizing ( during 2020) then generally decreasing; 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 previously increasing chloroform
at TW4-29 resulted from a remnant of the plume that migrated past TW4-33 generally toward
TW4-30. The influence of 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 impact 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 604 µg/L this quarter).
In addition, as in the area near TW4-29 and TW4-33, generally decreasing concentrations at
TW4-6 since the third quarter of 2015, and generally increased concentrations at TW4-26 since
the third quarter of 2016, suggest that TW 4-4 ( and TW 4-41) pumping has arrested chloroform
migration between TW4-4 and TW4-6, and that increased chloroform at TW4-26 results from a
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 ofTW4-41 pumping in the second quarter of
2018 has been expected to increase this apparent separation and to have resulted m
concentrations at TW 4-6 dropping below 70 µg/L beginning in the third quarter of 2018.
Furthermore, small but detectable chloroform concentrations at TW 4-14 ( from the fourth quarter
of 2014 through the first quarter of 2021; and during the third quarter of 2022) and at TW4-27
25
(since the third quarter of 2015) suggest ongoing, but slow, downgradient migration of
chloroform from the southeastern extremity of the plume into the low permeability materials
penetrated by these wells. Because the chloroform concentration at TW4-30 dropped below 70
µg/L during the third quarter of 2022, TW4-30 again bounds the plume to the east ofTW4-29.
Chloroform analytical results from TW4-34 and TW4-35 (Section 4.2.3) demonstrate that
chloroform is bounded to the south and southeast of TW4-29; and relatively recently installed
well TW4-43 bounds chloroform to the southeast of TW4-29 and TW4-30. As discussed in
Section 4.1.1, ongoing, but slow, downgradient migration of chloroform from the southeastern
extremity of the plume into the vicinities of TW4-34 and TW4-35 is also consistent with the
small, but detectable, chloroform concentrations at these wells since the third quarters of 2022
and 2023, respectively.
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 III.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.
The 2024 CACME report covers and interprets data collected through the fourth quarter of 2023.
As discussed in that report, since the third quarter of 2015, average chloroform concentrations
within the plume are trending downward; and, although noisy, concentrations at the majority of
the pumping wells within the plume are decreasing overall, including wells MW-4, MW-26,
TW4-4, TW4-20 (now abandoned), TW4-22, TW4-37, TW4-39 and TW4-41. In addition, since
the end of 2020, concentrations at nearly all non-pumping wells within ( or formerly within) the
plume are generally decreasing (including wells TW4-6, TW4-7, TW4-8, TW4-9, TW4-10,
TW4-16, TW4-26, TW4-29 and TW4-33). The overall decreasing trends at wells typically
having the highest concentrations (such as TW4-20 [now abandoned], TW4-22, TW4-37 and
TW4-39) are consistent with decreasing mass estimates for the plume as these wells are located
within areas having the highest concentrations and saturated thicknesses. Plume mass estimates
and trends are discussed in more detail below in Section 5.5.
26
4.2.3 Interpretation of Analytical Data
Comparing the chloroform analytical results to those of the previous quarter, as summarized in
the tables included under Tab K, the following observations can be made:
a) Chloroform concentrations have increased by more than 20% in the following wells
compared to last quarter: MW-4, MW-26, TW4-l, TW4-2, TW4-4, TW4-7, TW4-11,
TW4-19, TW4-21, TW4-22, TW4-34, TW4-37, TW4-39, TW4-40 and TW4-41;
b) Chloroform concentrations decreased by more than 20% in the following well compared
to last quarter:, TW4-10, TW4-16 and TW4-24;
c) Chloroform concentrations have remained within 20% in the following wells compared
to last quarter: TW4-5, TW4-6, TW4-8, TW4-9, TW4-18, TW4-26, TW4-27, TW4-29,
TW4-30, TW4-33 and TW4-35;
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,
TW4-36, TW4-38, TW4-42 and TW4-43;
e) Chloroform at TW4-35 increased from 1.9 µg/L to 2.2 µg/L; and
f) Chloroform at TW 4-34 increased from 1.1 µg/L to 1.4 µg/L.
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-4, MW-26,
TW4-l, TW4-2, TW4-4, TW4-7, TW4-10, TW4-11, TW4-16, TW4-19, TW4-21, TW4-22,
TW4-24, TW4-34, TW4-37, TW4-39, TW4-40 and TW4-41 had changes in concentration
greater than 20%. Of these, MW-4, MW-26, TW4-l, TW4-2, TW4-4, TW4-11, TW4-19, TW4-
21, TW4-37, TW4-39, TW4-40 and TW4-41 are chloroform pumping wells; and TW4-22 and
TW4-24 are nitrate pumping wells. Non-pumping well TW4-7 is located adjacent to chloroform
pumping wells MW-4, TW4-l and TW4-2; non-pumping well TW4-10 is located near
chloroform pumping wells MW-26 and TW4-39; TW4-16 is located near chloroform pumping
wells MW-26 and TW4-l 1; and TW4-34 is located just downgradient of the chloroform 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. Fluctuations in
concentrations are also expected at wells located near the plume margins (such as TW4-16 and
TW4-34).
Chloroform pumping wells MW-4 (1,660 µg/L); MW-26 (4,160 µg/L), TW4-11 (4,110 µg/L);
TW4-37 (13,500 µg/L); TW4-39 (4,380 µg/L); and nitrate pumping well TW4-22 (3,670 µg/L)
had the highest detected chloroform concentrations. Although pumping well TW4-20, formerly
located between pumping wells TW 4-19 and TW 4-3 7, would typically have one of the highest
concentrations, TW4-20 collapsed during August, 2020 and was abandoned in October, 2020.
27
Since last quarter, the chloroform concentrations in MW-4 increased from 950 to 1,660 µg/L;
MW-26 increased from 542 to 4,160 µg/L; TW4-l l increased from 2,530 to 4,110 µg/L; TW4-
37 increased from 8,860 to 13,500 µg/L; and TW4-39 increased from 893 to 4,380 µg/L. In
addition, the chloroform concentration in chloroform pumping well TW4-21 increased from 523
to 1,210 µg/L; the concentration in nitrate pumping well TW4-22 increased from 2,180 to 3,670
µg/L; and the concentration in nitrate pumping well TW4-24 decreased from 87.6 to 66.2 µg/L,
bringing it just outside the plume boundary this quarter. Nitrate pumping well TW4-25 remained
non-detect. TW4-25, located north ofTW4-21, 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 5.9 µg/L to approximately 5.5 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 1,660 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.
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) increased slightly from 438 µg/L to 441 µg/L; and chloroform at
TW4-30, located immediately cross-gradient of TW4-29, increased from approximately 34 µg/L
to 38 µg/L, remaining outside the plume. Chloroform at TW4-14 remained non-detect and
chloroform at TW4-27 increased slightly from 2.8 µg/L to 3 µg/L. Concentration trends at these
wells are generally consistent with ongoing, but slow, downgradient migration of chloroform at
these locations. For example, it took more than 51 quarters for detectable chloroform at TW 4-4
to migrate approximately 400 feet downgradient to TW4-14; and it took more than 30 quarters
for chloroform exceeding 70 µg/L at TW4-29 to migrate approximately 160 feet to TW4-30. In
addition, although TW4-30 was previously downgradient of TW4-29, due to long-term changes
in water levels in this area, TW4-30 is now generally cross-gradient of TW4-29.
Furthermore, as discussed in Section 4.1.1, increased concentrations at TW4-26 since the third
quarter of 2016 are also consistent with continuing downgradient chloroform migration which is
likely enhanced by the decay of the groundwater mound associated with the southern wildlife
pond. Increased concentrations at TW4-26 have widened the southeast extremity of the plume
which historically was narrow compared to more upgradient locations.
Chloroform at TW4-29 is bounded to the north by TW4-27 (approximately 3 µg/L), to the
southeast by TW4-35 (approximately 2.2 µg/L), to the south by TW4-34 (approximately 1.4
µg/L), and to the west-northwest by TW4-6 (approximately 2 µg/L) and TW4-23 (non-detect).
As discussed above, TW4-30, with a concentration of approximately 38 µg/L again bounds the
plume to the east of TW4-29, as it did prior to the fourth quarter of 2020. TW4-43, installed in
28
September, 2021, served as a new bounding well during the period that concentrations at TW4-
30 exceeded 70 µg/L. Continued monitoring will determine whether TW4-30 acts as a bounding
well in the future.
Chloroform at TW4-33 (located between TW4-4 and TW4-29) showed a decrease in
concentration, from approximately 43 µg/L to approximately 40 µg/L. TW4-33 has remained
outside the plume since the first quarter of 2021. Chloroform at TW4-33 is bounded to the north
by TW4-14 (non-detect), to the east by TW4-27 (approximately 3 µg/L), and to the west by
TW4-6 (approximately 2 µg/L) and TW4-23 (non-detect).
The chloroform concentration in TW 4-6 increased slightly from approximately 1. 7 µg/L to 2
µg/L. TW4-6 has remained outside the chloroform plume since the third quarter of 2018.
Installed in the second quarter of 2000, TW 4-6 was the most downgradient temporary perched
well prior to installation of TW4-23 in 2007 and TW4-26 in the second quarter of 2010. TW4-6
remained outside the chloroform plume between installation in the second quarter of 2000 and
the fourth quarter of 2008 likely due to a combination of I) slow rates of downgradient
chloroform migration in this area due to low permeability conditions and the effects of
upgradient chloroform removal by pumping, and 2) natural attenuation. TW 4-6 was
subsequently incorporated into the plume twice: from the first quarter of 2009 through the third
quarter of2010; 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 20 IO and the second quarter of 2014,
concentrations at TW4-6 showed a net decrease from 1,000 µg/L to 10.3 µg/L.
The relatively slow rate of chloroform migration in the vicinity of TW 4-6 in the past is
demonstrated by comparing the rate of increase in chloroform at this well to the rate of increase
in the nearest upgradient well TW4-4. Concentrations at TW4-4 increased from non-detect to
more than 2,200 µg/L within only two quarters whereas 16 quarters were required for
concentrations in TW 4-6 to increase from non-detect to only 81 µg/L. This behavior is consistent
with hydraulic tests performed at TW4-4, TW4-6, and TW4-26 during the third quarter of 2010
that indicate a nearly two orders of magnitude decrease in permeability south (downgradient) of
TW4-4. Chloroform migration rates in the vicinities of wells TW4-26, TW4-29 and TW4-33
have been expected to be relatively slow due to upgradient pumping and relatively low
permeability conditions. By analogy with the decreases in concentration at TW4-6 and TW4-26
that occurred after initiation of TW4-4 pumping, chloroform concentrations at both TW4-29 and
TW4-33 have been expected to eventually trend downward; and recent data are consistent with
this expectation.
Although changes in concentration have occurred in wells within the chloroform plume, the
boundaries of the plume have not changed significantly since the last quarter, except for slight
expansion near TW4-21 and slight contractions near TW4-16 and TW4-24. The expansion near
TW4-21 was due to chloroform concentration increases at TW4-19 and TW4-21; and the
contractions near TW4-16 and TW4-24 resulted from the decreases in concentration at these
wells. 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.
29
TW4-9 remained outside the plume from the second quarter of 2019 through the first quarter of
2021; was temporarily re-incorporated within the plume during the second quarter of 2021; and
remains outside the plume again this quarter. TW 4-9 was incorporated into the plume from the
first quarter of 2016 until the first quarter of 2019 due to increased concentrations attributable to
reduced recharge (and dilution) from the northern wildlife ponds. Prior to the first quarter of
2016, however, TW4-9 was outside the plume except during the fourth quarter of 2014.
Nitrate pumping generally caused the western boundary of the northern portion of the
chloroform plume to migrate to the west toward TW 4-24. Since the first quarter of 2014, TW 4-
24 has been both inside and outside the plume and is just outside 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 of2014).
Subsequent to the first quarter of 2014, generally higher concentrations at TW4-6 and TW4-16
(both of which were within the chloroform plume in the past) caused the plume boundary to
migrate to the southwest and temporarily re-incorporate both wells. This increase was likely
related to reduced dilution from cessation of water delivery to the northern wildlife ponds and
more westerly flow induced by nitrate pumping. In addition, concentrations at TW 4-6 are
expected to be influenced by reduced recharge at the southern wildlife pond and the decay of the
associated groundwater mound.
TW4-6 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) TW 4-16 has been both within and outside the plume. This quarter, although TW 4-
6 remains outside the plume, TW4-16 remains just within the plume.
The decreasing trend in chloroform concentrations at TW 4-6 since the third quarter of 2015, and
generally increased concentrations at TW 4-26 since the third quarter of 2016, suggest that TW 4-
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
slow or halt plume expansion in this area.
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 TW 4-6 ( since the first quarter of 2015) and TW 4-16 ( since the fourth
quarter of 2014) after previous increases are likely the result of initiation of TW4-1, TW4-2, and
TW 4-11 pumping during 2015. Maintaining reduced concentrations at TW 4-6 is attributable
primarily to pumping at TW 4-41.
30
5.0 LONG TERM PUMP TEST AT MW-4, MW-26, TW4-19, TW4-20, AND TW4-4
OPERA TIO NS 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
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 ofTW4-21 and TW4-37 on June 9, 2015. Beginning in December
2016 EFRI began long term pumping of TW4-39. Beginning in April 2018 EFRI began long
term pumping of TW 4-41. Beginning in May 2019 EFRI began long term pumping of TW 4-40.
The following information documents the operational activities during the quarter.
5.2 Pump Test Data Collection
The long term pump test for MW-4 was started on April 14, 2003, followed by the start of
pumping from TW4-19 on April 30, 2003, from MW-26 on August 8, 2003, from TW4-20 on
August 4, 2005, from TW4-4 on January 31, 2010, and from TW4-22, TW4-24, and TW4-25 on
January 26, 2013. Personnel from Hydro Geo Chem, Inc. were on site to conduct the first phase
of the pump test and collect the initial two days of monitoring data for MW-4. EFRI personnel
have gathered subsequent water level and pumping data.
Analyses of hydraulic parameters and discussions of perched zone hydrogeology near MW-4 has
been provided by Hydro Geo Chem in a separate report, dated November 12, 2001, and in the
May 26, 2004 Final Report on the Long Term Pumping Test.
Data collected during the quarter included the following:
• Measurement of water levels at MW-4, TW4-l, TW4-2, TW4-4, TW4-1 l, TW4-
19, MW-26, TW4-21, TWN-2, TW4-22, TW4-24, TW4-25, TW4-37, TW4-39
TW 4-40, and TW 4-41 on a weekly basis, and at selected temporary wells and
permanent monitoring wells on a monthly basis.
• Measurement of pumping history, including:
-pumping rates
31
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 TW 4-19 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, TW4-1 l, 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-l, TW4-2,
TW4-l l, TW4-19, TW4-21, TW4-4, TW4-22, TW4-24, TW4-25, TW4-37, TW4-39, TW4-40
(beginning May 2019), TW4-41 and TWN-2 and the monthly Depth to Water monitoring sheets
for the chloroform contaminant investigation wells and the selected temporary wells and
permanent monitoring wells are included under Tab C. Monthly depth to water measurements for
the quarter are recorded in the Field Data Worksheets included under Tab C.
5.4 Pumping Rates and Volumes
Table G-2 summarizes the recovered mass of chloroform by well per quarter and historically
since the inception of the chloroform recovery program for the active pumping wells. It is
important to note that TWN-02 is a nitrate program well and is sampled only for nitrate and
chloride as required by the nitrate program. Because TWN-02 is not sampled or analyzed for
chloroform, the mass of chloroform recovered is not calculated.
The pumping wells do not pump continuously but are on a delay device. The wells purge for a
set amount of time and then shut off to allow the well to recharge. Water from the pumping wells
is transferred to a holding tank. The water in the holding tank is used in the Mill processes. The
pumping rates and volumes for each of the pumping wells are shown in Table G-3. Specific
operntional problems observed with the well or pumping equipment which occurred during the
quarter are noted for each well below.
5.5 Mass Removed and Plume Residual Mass
Chloroform removal was estimated as of the first quarter 2007. Since that estimation, the mass
removed by well for each quarter has been compiled in Table G-2, which shows the pounds of
chloroform that have been removed to date. It should be noted that corrections were made to the
mass removed tables after Ql 2023 to correct typographical errors. No other corrections were
necessary as the change did not affect any other reported information. The mass of chloroform
removed from the plume this quarter is approximately 11.1 lb., which is approximately 91 %
larger than the approximately 5.8 lb. removed last quarter. The larger rate of mass removal is
attributable primarily to the increased concentrations at MW-4, MW-26, TW4-19, TW4-21,
TW4-37 and TW4-39.
32
The residual mass of chloroform within the plume is estimated as 965 lb. using the methodology
described in Appendix A of the GCAP ("Chloroform Plume Mass Calculation Method"). This is
approximately 504 lb. larger than last quarter's estimate of 461 lb, due primarily to increased
concentrations at MW-4, MW-26, TW4-19, TW4-21 TW4-37 and TW4-39. As per Part III.B.2
of the GCAP, electronic files used in calculating the mass estimate are provided with this report.
Details of the procedure are provided in Tab L.
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.
Based on data presented in the 2024 CACME Report, the calculated chloroform mass increased
after 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 resulted 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.
However, the residual mass estimates have generally decreased since the second quarter of 2016
maximum estimate of 2,261 lb. suggesting stabilization and decline; and, although the residual
mass estimates have generally been larger since 2012, the rate of mass removed per quarter by
pumping has also been 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, 2021, 2022, 2023
and 2024 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 87%. The difference is primarily attributable to
expansion of the capture zone in the northern portion of the plume (near MW-26, TW4-22 and
TW4-37).
As discussed above, the residual mass estimates have been generally larger since the cessation of
water delivery to the two northern wildlife ponds in the first quarter of 2012; however, both the
first quarter 2023 mass estimate (444 lb.) and the first quarter 2024 mass estimate (461 lb.) were
smaller than the first quarter, 2012 mass estimate of 492 lb. Although generally larger, mass
estimates since the first quarter of 2023 are nevertheless consistent with the general decrease in
residual mass estimates since the mid-2016 maximum estimate.
5.6 Inspections
All of the required inspections were completed, and the inspection forms are included in Tab C .
33
5.7 Conditions That May Affect Water Levels in Piezometers
No water was added to the any of the wildlife ponds during the quarter.
6.0 CORRECTIVE ACTION REPORT
No corrective actions were necessary for the current reporting period.
6.1 Assessment of Previous Quarter's Corrective Actions
There were no corrective actions required during the previous quarters' monitoring period.
7.0 CURRENT COMPLIANCE STATUS
7.1 Long Term Chloroform Plume Control
The chloroform plume is currently entirely within the Mill property boundary and is bounded on
all sides by wells having chloroform concentrations that are either non-detect or less than 70
µg/L (Tab J). The chloroform plume is bounded to the north by TW4-25 (non-detect); to the
west and southwest by MW-28 (non-detect), MW-31 (non-detect), MW-32 (non-detect), TW4-6
(approximately 2 µg/L) and TW4-23 (non-detect); to the east by TW4-3 (non-detect), TW4-5
(approximately 8.5 µg/L), TW4-8 (approximately 5.5 µg/L), TW4-9 (approximately 3.6 µg/L),
TW4-13 (non-detect), TW4-14 (non-detect), TW4-18 (approximately 49 µg/L), TW4-27
(approximately 3 µg/L), TW4-30 (approximately 38 µg/L), TW4-33 (approximately 40 µg/L);
TW4-36 (non-detect) and TW4-38 (non-detect); to the south by TW4-34 (approximately 1.4
µg/L) and TW4-42 (non-detect); and to the southeast by TW4-35 (approximately 2.2 µg/L) and
TW4-43 (non-detect).
Chloroform at TW4-34 was not detected until the third quarter of 2022 (at 1.2 µg/L). Since that
first detection, chloroform has been detected four additional times at concentrations ranging up
to the current quarter's concentration of 1 .4 µg/L. In addition, chloroform at nearby well TW 4-
35 was detected for the first time during the third quarter of 2023 (at 1.4 µg/L), and has been
detected each quarter since then, including during the current quarter at 2.2 µg/L. Chloroform
detections at TW4-34 and TW4-35 are consistent with continuing, but slow, downgradient plume
migration.
However, chloroform is not detected at wells far to the south (cross-to downgradient) and
southwest (cross-gradient) of the plume. MW-17 (non-detect) and MW-38 (non-detect) bound
the plume to the far southwest (cross-gradient); and MW-22 (non-detect), MW-39 (non-detect)
and MW-40 (non-detect) bound the plume far to the south (cross-to downgradient).
Because TW4-30 no longer bounded the plume immediately to the east due to increases in
concentration that brought TW4-30 into the plume for the first time during the fourth quarter of
2020, new bounding well TW4-43 was installed approximately 200 feet to the east-southeast of
TW4-30 during September, 2021. As indicated above, chloroform has not been detected at TW4-
43; and, due to decreases in chloroform concentrations since 2021, TW4-30 has been outside the
34
plume since the third quarter of 2022. Subsequent data will determine whether or not TW4-30
remains outside the plume and can serve (as in the past) as a bounding well.
Data collected to date indicate there are sufficient chloroform monitoring and pumping wells to
effectively define, control, and monitor the plume. In addition, site water level data indicate that
perched groundwater flow to the east of TW4-30, between TW4-30 and the eastern site property
boundary, is to the south-southwest; therefore it is unlikely that any chloroform within this
portion of the plume could ever migrate across the eastern property boundary. Furthermore,
chloroform in the vicinity of TW4-30 is migrating relatively slowly; it took more than 30
quarters for chloroform exceeding 70 µg/L at TW4-29 to migrate approximately 160 feet to
TW4-30. Due to long-term changes in water levels in this area, the former hydraulic gradient that
was directed from TW4-29 toward TW4-30 no longer exists; consequently, chloroform is no
longer expected to migrate from TW4-29 to TW4-30, consistent with the generally decreasing
trend in chloroform since 2021 that has brought TW4-30 outside the plume since the third
quarter of 2022. Finally, the groundwater flow direction in the immediate vicinity of TW4-30 is
now south-southeasterly, generally toward TW4-35 and TW4-43. This quarter, TW4-43 is non-
detect for chloroform while, as discussed above, chloroform was detected at TW 4-3 5 for the
fourth time this quarter (at 2.2 µg/L).
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 11.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 2024.
35
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 965 lb. using the methodology
described in Appendix A of the GCAP ("Chloroform Plume Mass Calculation Method"). This is
504 lb. larger than last quarter's estimate of 461 lb., attributable primarily to increased
concentrations at chloroform pumping wells MW-4, MW-26, TW4-19, TW4-21, TW4-37 and
TW4-39. Since the third quarter of 2015, the residual mass estimate trend is downward; and the
current quarter's estimate of 965 lb. is substantially lower than both the third quarter 2015
estimate of 1,712 lb., and the maximum of2,261 lb. estimated for the second quarter of 2016.
In addition, although the residual mass estimates have generally been larger since cessation of
water delivery to the wildlife ponds in 2012, the first quarter 2023 mass estimate (444 lb.) and
the first quarter 2024 mass estimate (461 lb.) were smaller than the first quarter, 2012 mass
estimate of 492 lb. However, although generally larger, mass estimates since the first quarter of
2023 are consistent with the general decrease in residual mass estimates since the mid-2016
maximum.
The mass of chloroform removed from the plume this quarter by pumping, approximately 11.1
lb., is approximately 91 % larger than the mass removed last quarter (approximately 5.8 lb.). The
larger mass removal is attributable primarily to the increased concentrations at chloroform
pumping wells MW-4, MW-26, TW4-19, TW4-21, TW4-37 and TW4-39.
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 µg/L) and TW4-23 (non-detect); to the east by TW4-3 (non-detect), TW4-5
(approximately 8.5 µg/L), TW4-8 (approximately 5.5 µg/L), TW4-9 (approximately 3.6 µg/L),
TW4-13 (non-detect), TW4-14 (non-detect), TW4-18 (approximately 49 µg/L), TW4-27
(approximately 3 µg /L), TW4-30 (approximately 38 µg/L), TW4-33 (approximately 40 µg/L);
TW4-36 (non-detect) and TW4-38 (non-detect); to the south by TW4-34 (approximately 1.4
µg/L) and TW4-42 (non-detect); and to the southeast by TW4-35 (approximately 2 .2 µg/L) and
TW4-43 (non-detect).
Because TW4-30 no longer bounded the plume immediately to the east due to increases in
concentration that brought TW4-30 into the plume for the first time during the fourth quarter of
2020, new bounding well TW4-43 was installed approximately 200 feet to the east-southeast of
TW4-30 during September, 2021. As indicated above, chloroform has not been detected at TW4-
43. However, due to concentration decreases since 2021, TW4-30 has been outside the plume
since the third quarter of 2022, and again bounds the plume to the east. Subsequent data will
determine whether or not TW4-30 remains outside the plume and can serve (as in the past) as a
bounding well in the future.
36
Data collected to date indicate there are sufficient chloroform monitoring and pumping wells to
effectively define, control, and monitor the plume. In addition, site water level data indicate that
perched groundwater flow to the east of TW4-30, between TW4-30 and the eastern site property
boundary, is to the south-southwest; therefore, it is unlikely that any chloroform within this
portion of the plume could ever migrate across the eastern property boundary. Furthermore,
chloroform in the vicinity of TW4-30 is migrating relatively slowly; it took more than 30
quarters for chloroform exceeding 70 µg/L at TW4-29 to migrate approximately 160 feet to
TW4-30. Due to long-term changes in water levels in this area, the former hydraulic gradient that
was directed from TW4-29 toward TW4-30 no longer exists; consequently, chloroform is no
longer expected to migrate from TW4-29 to TW4-30, consistent with the concentration decreases
since 2021 that have brought TW4-30 again outside the plume. Finally, the groundwater flow
direction in the immediate vicinity of TW4-30 is now south-southeasterly, generally toward
TW4-35 and TW4-43, at which chloroform concentrations are low and non-detect, respectively.
The water level contour maps for the second quarter of 2024 indicate effective capture of water
containing high chloroform concentrations over most of the chloroform plume. Capture in the
southeastern portion of the plume (vicinity of MW-4) was enhanced by start-up of chloroform
pumping wells TW4-1, TW4-2, and TW4-11 during the first quarter of 2015. Capture in the
northwestern portion of the plume was enhanced by start-up of chloroform pumping wells 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
TW 4-41 during the second quarter of 2018 and of TW 4-40 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 TW 4-41.
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
magnitude decrease in permeability south of TW4-4. 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 TW 4-6 (located downgradient of TW 4-4) 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.
'Background' flow through the chloroform plume was calculated in the 2016 CACME as
approximately 3.4 gpm Due to continued reductions in hydraulic gradients and saturated
thicknesses since then, the 'background' flow was recalculated in the 2024 CACME as 2.24
gpm. Pumping from wells within and immediately adjacent to the chloroform plume during the
37
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 gpm. The
combined pumping rate of 4 gpm exceeds the calculated background flow by nearly 1.8 gpm or
80%, 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-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-
7, TW4-10, TW4-11, TW4-16, TW4-19, TW4-21, TW4-22, TW4-24, TW4-34, TW4-37, TW4-
39, TW4-40 and TW4-41 had changes in concentration greater than 20%. Of these, 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; and TW4-22 and TW4-24 are nitrate pumping wells. Non-
pumping well TW4-7 is located adjacent to chloroform pumping wells MW-4, TW4-1 and TW4-
2; non-pumping well TW4-10 is located near chloroform pumping wells MW-26 and TW4-39;
TW4-16 is located near chloroform pumping wells MW-26 and TW4-11; and TW4-34 is located
just downgradient of the chloroform 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 TW4-16 and TW4-34). 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 (1,660 µg/L); MW-26 (4,160 µg/L), TW4-11 (4,110 µg/L);
TW4-37 (13,500 µg/L); TW4-39 (4,380 µg/L); and nitrate pumping well TW4-22 (3,670 µg/L)
had the highest detected chloroform concentrations. Since last quarter, the chloroform
concentration in MW-4 increased from 950 to 1,660 µg/L; MW-26 increased from 542 to 4,160
µg/L; TW4-1 l increased from 2,530 to 4,110 µg/L; TW4-37 increased from 8,860 to 13,500
µg/L; and TW4-39 increased from 893 to 4,380 µg/L. In addition, the chloroform concentration
in chloroform pumping well TW4-21 increased from 523 to 1,210 µg/L; the concentration in
nitrate pumping well TW4-22 increased from 2,180 to 3,670 µg/L; and the concentration in
nitrate pumping well TW4-24 decreased from 87.6 to 66.2 µg/L, bringing it just outside 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 5.9 µg/L to approximately 5.5 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 1,660 µg/L. Although the plume
boundary remained between MW-4 and TW4-8 from the first quarter of 2005 through the fourth
quarter of 2013, TW4-8 was re-incorporated into the plume between the first quarter of 2014 and
the fourth quarter of 2019. Elevated chloroform at TW4-8 was bounded to the north by TW4-3
and TW4-38 (both non-detect), to the northeast by TW4-13 (non-detect), to the east by TW4-36
(non-detect), and to the southeast by TW4-14 (which has remained below 10 µg/L and is non-
detect this quarter). Although previously elevated, TW4-8 has remained outside of and has
bounded the plume since the end of 2019. Changes in the plume boundary near TW4-8 are
38
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 quarter of2021; and during the third quarter of2022) and at TW4-27 (since the third quarter
of 2015) are consistent with continued, but slow, downgradient migration of chloroform from the
distal end of the plume (near TW4-29 and TW4-33) into the low permeability materials
penetrated by TW4-14 and TW4-27. Chloroform at TW4-14 remained non-detect and
chloroform at TW4-27 increased slightly from 2.8 µg/L to 3 µg/L. Pumping at TW4-41 1s
expected to reduce or prevent future migration of chloroform toward these wells.
Concentration trends at TW4-29 (located at the southeastern extremity of the plume, to the east
of TW4-26 and to the south 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 increased
slightly from 438 µg/L to 441 µg/L; and chloroform at TW4-30, located immediately cross-
gradient of TW4-29, increased from approximately 34 µg/L to 38 µg/L, remaining just outside
the plume. As discussed above, slow downgradient migration is consistent with the more than 30
quarters needed for chloroform exceeding 70 µg/L at TW4-29 to migrate approximately 160 feet
to TW4-30 (although TW4-30 is again outside the plume).
Chloroform at TW4-29 is bounded to the north by TW4-27 (approximately 3 µg/L), to the
southeast by TW4-35 (approximately 2.2 µg/L), to the south by TW4-34 (approximately 1.4
µg/L), and to the west-northwest by TW4-6 (approximately 2 µg/L) and TW4-23 (non-detect).
As discussed above, TW4-30 no longer bounded the plume immediately to the east and TW4-43
has acted as a new bounding well in this area; however, due to decreased concentrations, TW4-
30 has bounded the plume to the east since the third quarter of 2022. 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. Furthermore, recent detections
in chloroform at TW4-34 (since the second quarter of 2022); and at TW4-35 (since the third
quarter of 2023), although small (< 3 µg/L), are also consistent with continuing, but slow,
downgradient plume migration.
Chloroform at TW4-33 (located between TW4-4 and TW4-29), which has remained below 70
µg/L since the first quarter of 2021, showed a decrease in concentration, from approximately 43
µg/L to 40 µg/L. Chloroform at TW4-33 is bounded to the north by TW4-14 (non-detect), to the
east by TW4-27 (approximately 3 µg/L), and to the west by TW4-6 (approximately 2 µg/L) and
TW4-23 (non-detect).
Although changes in concentration have occurred in wells within the chloroform plume, the
boundaries of the plume have not changed significantly since the last quarter, except" for slight
expansion near TW4-21 and slight contractions near TW4-16 and TW4-24. The expansion near
TW4-21 was due to chloroform concentration increases at TW4-19 and TW4-21; and the
contractions near TW4-16 and TW4-24 resulted from the decreases in concentration at these
39
wells. As has been .the case since the first quarter of 2020, due primarily to decreases in
concentrations at TW4-6 and TW4-33, the kriging algorithm has 'pinched off the southern
extremity of the plume.
TW 4-9 remained outside the plume from the second quarter of 2019 through the first quarter of
2021; was temporarily re-incorporated within the plume during the second quarter of 2021; and
remains outside the plume again this quarter. 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 TW 4-9 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 just outside 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 of2014).
Subsequent to the first quarter of 2014, generally increased concentrations at TW4-6 and TW4-
16 (both of which were within the chloroform plume in the past), caused the plume boundary to
migrate to the southwest and temporarily re-incorporate both wells. Increased concentrations at
these wells subsequent to the first quarter of 2014 are likely related to reduced dilution from
cessation of water delivery to the northern wildlife ponds and more westerly flow induced by
nitrate pumping. In addition, concentrations at TW4-6 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 89 µg/L this quarter, concentrations have been higher since 2018, likely in
response to reduced dilution.
The decreasing trend in chloroform concentration at TW 4-6 since the third quarter of 2015, and
generally increased concentrations at TW 4-26 since the third quarter of 2016, suggest that TW 4-
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,
TW 4-40 and TW 4-41 since the beginning of 2015 is expected to have a beneficial impact.
Generally reduced concentrations at TW 4-6 ( since the third quarter of 2015) and TW 4-16 ( since
40
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 TW4-19) is
recommended. Pumping these wells, regardless of any short-term fluctuations in concentrations
detected at the wells, helps to reduce downgradient chloroform migration by removing
chloroform mass and reducing hydraulic gradients, thereby allowing natural attenuation to be
more effective.
Continued operation of chloroform pumping well TW4-4, augmented by pumping at adjacent
well 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 of2014 is likely related
to pumping at TW4-4. The decrease in the long-term rate of water level rise at TW4-6 once
TW4-4 pumping began, which suggests that TW4-6 is within the hydraulic influence of TW4-4,
is also consistent with the decrease in chloroform concentrations at TW 4-6 between the first
quarter of 2010 and the second quarter of 2014. The decreasing trend in water levels beginning
in 2014 and, as noted above, the generally decreasing chloroform concentrations since the first
quarter of 2015 at TW4-6 are also attributable in part to TW4-4 (augmented by TW4-41)
pumpmg.
Continued operation of chloroform pumping wells TW4-1, TW4-2, TW4-l l, TW4-21, TW4-37,
TW4-39, TW4-40 and TW4-41 is also recommended because pumping these wells has increased
overall capture and improved chloroform mass removal. In particular, continued pumping of
TW4-37 (in conjunction with TW4-19) compensates for the loss of TW4-20; and pumping at
TW4-40 has expanded capture within the southern extremity of the plume.
Furthermore, because of the influence of TW4-4 pumping (augmented by TW4-41 pumping
since the second quarter of 2018), and by analogy with the concentration decreases at TW 4-6 and
TW4-26 that occurred after initiation of TW4-4 pumping, chloroform concentrations at TW4-29
and TW4-33 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 to decreasing; appear consistent with these
expectations. As discussed above, trends at these wells suggest that chloroform migration has
been arrested at TW4-33 by TW4-4 (and TW4-41) pumping and that previously increasing
chloroform at downgradient well TW4-29 resulted from a remnant of the plume that migrated
past TW4-33 generally toward TW4-30, which until recently was downgradient of TW4-29, and
which until the fourth quarter of 2020 bounded the plume to the east. As discussed above, due to
concentration decreases since 2021, TW4-30 again bounds the plume to the east; and continued
monitoring will determine whether it can function (as in the past) as a bounding well in the
future.
The influence of TW 4-4 pumping at the distal end of the plume is consistent with decreasing
water levels at both TW4-29 and TW4-33. Pumping at adjacent well TW4-41 has been expected
to help maintain or enhance these decreasing trends in water levels and to augment the expected
41
•
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 TW 4-9 have been trending generally downward since the first quarter of 2018).
As discussed above, increased concentrations at TW 4-26 since the third quarter of 2016 that are
consistent with continuing downgradient chloroform migration are also likely enhanced by the
decay of the groundwater mound associated with the southern wildlife pond.
The net impact of reduced wildlife pond recharge has been expected to be beneficial even though
it was also expected to result in (temporarily) higher concentrations that would persist until
continued mass reduction via pumping and natural attenuation ultimately reduced concentrations.
Temporary increases in chloroform concentrations have been judged less important than reduced
chloroform migration rates. The evolution of the impacts of reduced recharge on concentrations
and plume migration rates will be defined by continued monitoring.
9.0 ELECTRONIC DATA FILES AND FORMAT
EFRI has provided to the Director an electronic copy of the laboratory results for 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.
42
10.0 SIGNATURE AND CERTIFICATION
This document was prepared by Energy Fuels Resources (USA) Inc.
Energy Fuels Resources (USA) Inc .
By:
Scott A. Bakken
Vice President, Regulatory Affairs
43
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.
44
Tables
Table 1: Summary of Well Sampling for the Period
Well Sample Date Date of Lab Report
MW-04 5/29/2024 6/13/2024
TW4-01 5/29/2024 6/13/2024
TW4-02 5/29/2024 6/13/2024
TW4-03 6/4/2024 6/19/2024
TW4-04 5/29/2024 6/13/2024
TW4-05 6/13/2024 6/27/2024
TW4-06 6/20/2024 7/3/2024
TW4-07 6/12/2024 6/27/2024
TW4-08 6/13/2024 6/27/2024
TW4-09 6/12/2024 6/27/2024
TW4-10 6/20/2024 7/3/2024
TW4-ll 5/29/2024 6/13/2024
TW4-12 6/11/2024 6/27 /2024
TW4-13 6/11 /2024 6/27 /2024
TW4-14 6/12/2024 6/27 /2024
MW-26 5/29/2024 6/13/2024
TW4-16 6/20/2024 7/3/2024
TW4-16R 6/19/2024 7/3/2024
MW-32 6/19/2024 7/3/2024
TW4-18 6/13/2024 6/27/2024
TW4-19 5/29/2024 6/13/2024
TW4-21 5/29/2024 6/13/2024
TW4-22 5/29/2024 6/13/2024
TW4-23 6/12/2024 6/27 /2024
TW4-24 5/29/2024 6/13/2024
TW4-25 5/29/2024 6/13/2024
TW4-26 6/20/2024 7/3/2024
TW4-27 6/12/2024 6/27/2024
TW4-28 6/11/2024 6/27/2024
TW4-29 6/20/2024 7/3/2024
TW4-30 6/13/2024 6/27/2024
TW4-31 6/12 /2024 6/27/2024
TW4-32 6/11/2024 6/27/2024
TW4-32R 6/10/2024 6/27/2024
TW4-33 6/13 /2024 6/27/2024
TW4-34 6/12/2024 6/27 /2024
TW4-35 6/12/2024 6/27/2024
TW4-36 6/12/2024 6/27/2024
TW4-37 5/29/2024 6/13/2024
TW4-38 6/12/2024 6/27/2024
TW4-39 5/29/2024 6/13/2024
TW4-40 5/29/2024 6/13/2024
TW4-41 5/29/2024 6/13 /2024
TW4-42 6/4/2024 6/19/2024
TW4-43 6/12/2024 6/27/2024
TW4-60 5/29/2024 6/13 /2024
TW4-65 6/11/2024 6/27/2024
TW4-70 6/13/2024 6/27/2024
TW4-75 6/20/2024 7/3/2024
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 DI Field Blank, TW4-65 is a duplicate ofTW4-42, and TW4-70 is a duplicate ofTW4-09
and TW4-75 is a duplicate ofTW4-10.
Highlighted wells are continuously pumped .
Table G-2
C hl oroform Mass Removal Per Well Per Qua r ter
MW-4 MW-26 TW4-19 TW4-20 TW4-4 TW4-22 TW4-24 TW4-25 TW4-0I TW4-02 TW4-ll TW4-21 TW4-37 TW4-39 TW4-40 TW4-41 Quarter
Quarter• (lbs.) (lbs.) (lbs.) (lbs.)•• (lbs.) (lbs.) (lbs,) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) Totals (lbs.)
Ql 2007 36 8 12 ,9 150 .2 87 0 NA NA NA NA NA NA NA NA NA NA NA NA 286,9
Q2 2007 1,4 0.1 0.0 2.5 NA NA NA NA NA NA NA NA NA NA NA NA 4 ,0
Q3 2007 2.2 08 2,9 3,1 NA NA NA NA NA NA NA NA NA NA NA NA 9,0
Q4 2007 l 7 1.0 3 I 4 ,8 NA NA NA NA NA NA NA NA NA NA NA NA 10 .6
QI 2008 1.7 0.4 4.6 7.2 NA NA NA NA NA NA NA NA NA NA NA NA 13 .8
02 2008 1.3 0.5 3.2 9.9 NA NA NA NA NA NA NA NA NA NA NA NA 14 .8
Q3 2008 1.2 0,3 15 ,9 9.3 NA NA NA NA NA NA NA NA NA NA NA NA 26.8
04 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
02 2009 6.8 0.2 3.7 2 .8 NA NA NA NA NA NA NA NA NA NA NA NA 13.5
Q3 2009 I 5 0.4 11.1 5,5 NA NA NA NA NA NA NA NA NA NA NA NA 18 5
Q4 2009 4 .8 0.6 17 .8 26.1 NA NA NA NA NA NA NA NA NA NA NA NA 49.4
QI 2010 0.9 0.4 27 0.4 NA NA NA NA NA NA NA NA NA NA NA NA 4 ,5
Q2 2010 1.5 1.0 6,8 5,9 1.4 NA NA NA NA NA NA NA NA NA NA NA 16 5
Q3 2010 1.3 I 2 20 4 .9 1.3 NA NA NA NA NA NA NA NA NA NA NA 10 6
04 2010 I.I 0.5 77 7.4 1.2 NA NA NA NA NA NA NA NA NA NA NA 17 .9
Ql 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 l_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 11 4 .1 1.2 NA NA NA NA NA NA NA NA NA NA NA 8.1
Q4 201 I 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 1.1 0.6 0.8 7.0 1.0 NA NA NA NA NA NA NA NA NA NA NA 10.6
Q2 2012 I.I 0.7 07 6,9 1.1 NA NA NA NA NA NA NA NA NA NA NA 10.4
Q3 2012 11 0.7 1.4 2.4 1.1 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 09 0.4 7.4 2.8 0_7 u 0.0 0.0 NA NA NA NA NA NA NA NA 13 .7
Q2 2013 0 .9 09 39 4.4 0 .7 2.7 a.a 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 31.1
Q4 2013 0,8 OJ 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 03 1 5 2 ,8 0.6 2.5 0,2 0,0 NA NA NA NA NA NA NA NA 8,6
Q2 2014 0.8 04 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 04 3.6 1.8 0.8 2.5 0.1 0,0 NA NA NA NA NA NA NA NA 10 .2
Q4 2014 0 .8 0.4 7.1 3.2 0 .6 2,5 0,04 0.0 NA NA NA NA NA NA NA NA 14 ,6
QI 2015 0.9 0.4 2.4 2.6 0.4 2.3 0.04 0.0 0.23 0.37 0.20 NA NA NA NA NA 9 ,9
Q2 2015 0.7 0.5 1.0 2.8 0.7 1.6 o_oo 0.0 025 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 0.03 00 0.21 0,24 om 0 29 18.8 NA NA NA 33.4
Q4 2015 1.0 0.4 7.4 2.2 0.6 1.5 0.02 00 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 I 3 04 13,0 4.4 0.9 1.9 0.04 0.0 0_19 0.36 0,10 0,60 16.1 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.I NA NA NA 24 7
Q4 2016 1.0 0.4 5.8 2.3 0.4 0,7 0.017 a.a 0.19 0.26 0.08 0.47 14 0 01 NA NA 25 .6
QI 2017 09 03 I .I 2 .6 0.3 I.I 0,015 00 0.07 0,26 0.08 0.27 14.6 5.6 NA NA 27 .2
Q2 2017 0 .9 0,5 0.5 1,9 0,3 0,7 0,008 0.0 0.15 0.30 0.08 0.11 12 3 1.9 NA NA 19 ,6
Q3 2017 11 0.3 83 3.4 0.3 I.I 0 .008 0.0 0.14 0.21 0.08 0.54 10.2 2.9 NA NA 28 .5
Q4 2017 1 2 0.6 0 ,1 1.4 0.2 0.9 0 ,014 0 ,0 0,07 0.23 0.06 0.49 11.3 03 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 0.07 0.41 9,1 1 4 NA NA 18 .0
02 2018 11 04 2.8 1.3 0.2 0 ,6 0 .022 0 .0 0 .09 0.13 0,06 0.52 10 .1 2.0 NA 0.9 20 .1
Q3 2018 I 0 0.4 1.7 LI 0.1 0,6 0 ,016 0.0 0,08 0 .12 0.06 0.44 9 ,1 2 3 NA 0_5 17 6
Q4 2018 I.I 0.3 4 .7 1.0 0.1 0,5 0.018 0.0 0 .06 0 ,11 0 06 0,59 9,7 2.0 NA 0.4 20 ,8
Ql 2019 11 0.2 2,0 1.9 0,1 0,9 0.023 0.0 0 ,01 0 .14 0.06 0.33 8.6 0.4 NA 0.3 16 ,2
Q2 2019 1.0 03 9,7 1,5 0,1 0,9 0.013 0,0 0 ,08 0.16 0.05 0.65 8.8 25 0,18 0.3 26 .1
Q3 2019 0 ,9 03 5 6 1.2 0.1 0,7 0.014 00 0,07 O,Q9 0 ,05 0,5 6,7 I 3 0.37 0.2 18.3
Q4 2019 I.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 02 13 ,0
QI 2020 I.I 02 7,0 I .I 0 ,1 0 .8 0.044 0.0 0 .09 0,21 0 05 0.8 6 ,6 0.3 0.31 0 .2 18.9
Tab le G-2
Ch loroform Mass Re mova l Per Well Per Quarter
MW-4 MW-26 TW4-l9 TW4-20 TW4-4 1W4-22 1W4-24 TW4-25 1W4-0I 1W4-02 TW4-ll TW4-ll TW4-37 TW4-J9 1W4-40 1W4-41 Quarter
Quarter• (lbs.) (lbs.) (lbs.) (lbs.) .. (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) Totals (lbs.)
02 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
03 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 0.1 134
Q4 2020 0 .8 0.2 0 .8 0 ,0 0 1 0,7 0.063 00 0.07 0 ,14 0.03 0 ,8 5.3 0.3 0 , 17 0.2 9.6
Ql 2021 0 ,9 0.7 7.4 0.0 0.1 1.0 0.066 0.0 0_07 0 .10 0.05 0.3 4.7 1.0 0 .26 0.1 16 ,8
Q2 2021 1.0 0.2 1 0 0.0 0.1 0.9 0.019 0.0 0.07 0.12 0,05 0 ,9 6.4 0.7 0 .19 0.1 11.8
Q3 2021 0 ,9 04 59 00 0.1 07 0.046 00 0.06 0,12 0.03 0 .5 43 0.2 0.15 0,1 13.4
04 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.I
QI 2022 0 .8 0.3 0_6 00 0.1 0.6 0.070 0.0 0.07 0.10 0.03 0.4 4.9 0.2 0 ,11 0_1 84
02 2022 0 ,8 0 1 2.6 0.0 0 I 0.5 0.052 0.0 0.06 0.09 0,03 0,5 16.4 0,3 0.14 0.1 21.8
Q3 2022 0 .8 0.1 5.4 0.0 0.1 0,6 0.043 0 .0 0 07 0,08 O.QJ 0 .8 3.8 0.2 0 11 0 I 12 3
Q4 2022 0 ,9 OJ 85 0.0 OJ OA 0.067 0.0 O.Q7 0 .10 0.03 0 .4 3_5 0.6 0.12 0.1 IS 0
QI 2023 0 .8 0.1 0 .3 0 .0 0.1 0.3 0.060 0.0 0.06 0.07 0.03 0,4 3.0 0,6 0.10 0.1 5,9
02 2023 0 .8 0 .5 4 .7 0.0 0.1 0.6 O.D25 0,0 0 05 0.08 O.Q2 0 ,5 29 0.8 0 ,08 0.1 11.4
Q3 2023 0 .8 0 _6 0.2 0.0 0.1 0.4 0.031 0 ,0 0.06 0 ,08 O,Q3 0 .0 3.7 1.0 0 .10 0.1 7,2
04 2023 1.2 0.2 1.5 0 .0 01 06 0.121 00 0 .08 0 .10 0.04 I.I 5.0 0.3 0 13 0.1 10 ,6
Ql 2024 0 .7 0 .1 0 .3 0 .0 0.1 0.4 0.055 0.0 0 ,05 0 .08 0.03 0 .4 33 0.2 0,06 0.1 5 8
Q2 2024 1.3 1J .8 0.9 U.0 U.l 0.7 0.029 0.0 0 09 0.[3 0.04 0 .8 1 49 LI 0 .12 0.2 ll.l
Well Totals 119 .6 42 0 488.6 296 2 27 .1 51.6 2.0 0 ,0 3 7 64 2.2 19.0 318.8 34 9 3 .7 50 1420 .8
• QI 20 07 represents the cumulative total prior to and including QI 2007 .
•• TW4-20 collapsed in August 2020 and was abandoned on October 1, 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 90289.4 4.0
MW-26 22443.3 15.8
TW4-19 105708.8 15.9
TW4-4 5724.5 16.0
TWN-2 14009.1 16.0
TW4-22 21916.0 16.0
TW4-24 53174.6 16.0
TW4-25 105707.7 15.3
TW4-01 7755.6 12.7
TW4-02 10395.1 16.0
TW4-11 1119.4 16.0
TW4-21 79732.7 16.0
TW4-37 43726.7 18.0
TW4-39 29594.3 18.0
TW4-40 38059.9 18.0
TW4-41 11405.6 6.0
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
I-1 Field Data QA/QC Evaluation
I-2 Holding Time Evaluation
I-3 Receipt Temperature Check
I-4 Analytical Method Check
I-5 Reporting Limit Evaluation
I-6 Trip Blank Evaluations
I-7 QA/QC Evaluation for Sample Duplicates
I-8 QC Control Limits for Analyses and Blanks
I-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
MW-41B
-¢-
TW4-43
~
TWN-20
CJ
Mlfll-24/.1
(~}
TW4-42
¢
TW4-40
EB
TW4-19
EB
MW-5 •
TW4-12
0
TWN-7
◊
PIEZ-1
~
EXPLAN_~JJQN
perched monitoring well
installed April , 2023
DR·H
temp orary perched mon it oring well
installed Se ptem ber , 2021
temporary perched nitrate monitoring
well in sta lled A pril , 2021
perched monitoring well installed
December 2019
temporary perched monitoring well
in stall ed April 2019
perched chlorofo rm pumping v1el l
installed Februa1y 2018
perched chl oro form or
nit rate pump ing well
perci1ed moni toring well
tem po rary perched monitoring well
temporary perched nitrate monitoring
well
perched plezome te ,
RUIN SPRING
b seep or spring
,_, .
OR,06 .
DR-10
• MW-21
Q[l.07
OR-11
DR-15 •
OR-21 •
DR-12 .
•
DR -1l
MIV-lA
• MW-20
_.., -~
[:;" ., J:
;;r,..,----r--:
'
-
• t.lW-29
.,
l,Wl-01
,Jd'(•n.:
0 rwN-o,
• MW-1~
0
TWN:'0&
~-•,·.11!.l!
0
TWN-oe
. ·:.,:,r~:1.:•.,, ... -
0
TVIN-15
.r,,..-.a.-•
0
IWN•11
0
TWN-1'
&o,'?'1:.lC-n:.::, ·,o
TWrl-D~ .
PIEZ-01
• MW-i9
[I 0
TWN-lOTWN-o,
0
TWN!"111
cen2
• MW-30
C el l~
• MW'.17
•\wt,:Ol .
'PIEZ-02 •I•
·~ ,.-0 ·-~' e ,.~ fWl\;(13 TWN-o•"· •..n-=-
loffl•l7·· • ! C • t ' -., _; J;-'111•111£:••
1 .:,I e .,, ·. \,s,. --...,j
.lo .,..I ::o .
mN-01 -~• rw~-n ~, lLEjf:JJ\
l4!lw~ [ -'~, I
-
• TW4'11 .
~ ~~~lrw .. 12
•Tl' • ~ l
• MW•ll
MW•i• . '!.o <>. Q ' ,
, ~o'rv)~ rwBi,lJIW2
~cf.1 ~'1}'14-.tl ~k!l
.!, '1 4-0' . L . ..--IAW"~
.u'(.~ '0 ... ~D • ~~-w~
t.wl•>½~_
• ~~-:-w(~4-1't -
lWUIO ,:-T\'i'.4'2·i:4'i! •~~ ~ ~,O'fo • ,'fW • W.P' ~ ;:· ... ,.o,,.,. . ,. .•• , •.:•ill5 , -ifh"',19 , . . ,....,
'· _I ~ 'TVi . 0
,../!:..,o
• ~ MW,J9
UJ li,IJ • ~ MW-JS
"' ~ --;r: ,. • ~ i
MW-22 ~
0
TWN-16
.••·•,,
0
TWNa17
11 m1ife
HYDRO
GE □
CHEM, INC.
WHITE MESA SITE PLAN SHOWING LOCATIONS OF
PERCHED WELLS AND PIEZOMETERS
f,.PPROVEO OA1E RE FERENCE
H :/7 1800 0/aug 23 1Uwelloc1223.srf
t!'IGUHt::.
A-1
TabB
Order of Sampling and Field Data Worksheets
Order of Contamination for 2nd Quarter 2024 Chloroform Purging Event
Chloroform Water Well
Well Sample time Levels Rinsate date/time level Depth
TW4-03 Wj{.l.'j 1~0 ND 141
TW4-42= I~ ND 86
ND OG.'.30 101.5 ' TW4-12 ~b/jiG
107 ·•ri.,.l~ ~ ~.:Z. fl.-Ot.lDZC>Z'-{ /:!.Jo TW4-28 ',/11/2.~ 04.'-1 0 ND
TW4-32 IJ..11 {~'1 C> 700 ND 115.1
TW4-13 Glll .lZ.'i o:HS ND 102.5
TW4-36 '1/1:2(2.'j ~,, ND 99
TW4-14l.l!;!iJ-0'-21.f ND 93
TW4-3 I Glltfzi O~'I ND 106
TW4-43 CJ1z(.;'.f (){.!:j/ ND 97.9
TW4-23 £,/.ll/,;//. Qb50 ND· 114
TW4-38 b((Z/.'l';\ pb5'1 ND 112.75
TW4-25 5]'-'ib.'1 to,5 ND 134.8 Cont. Pumping
-CMW-32 b IMl'I II so ND 130.6 Bladder pump
TW4-34 UIZ:{~ • 0'107 I.I 97.2
TW4-06 ""1./p.~ ()7 /l,. 1.7 97.5
TW4-35 bltUZ.'i Q1~6 1.9 87.5
TW4-27 (i~~/i Q]~'/ 2.8 96
TW4-09 &fj3/.;I.~ !~1"1J 3.9 120
TW4-08~ 5.9 125
TW4-05'-1 .• 8.7 120
TW4-30 /JI 2 0 34.2 92.5
TW4-33 I. :l! 0 43.3 87.9
TW4-18 -.: l.'¼ C707 49.6 137.5
TW4-24 5/.:t_Ct/Z, 10'\5 87.6 112.5 Cont. Pumping
-rl,c)'i-l~TCOG. Ji:2.DJ~ ,TW4-16 '-.IM/3.'1 0"700 116 146.3
TW4-40 j,/;ff/t'f 1~!5 187 86 Cont. Pumping
0750
·TW4-10 '-1.2A'°Z-'I t,,10 335 Ill
TW4-19 E:t-!'lltf ins 351 125 Cont. Pumping
-TW4-29 '-1»",c'f 0722 438 93.5
TW4-21 S~~'I-1015 523 121 Cont. Pumping
MW-26 ~'<tl:l-~ 1,-og 542 122.5 Cont. Pumping
-TW4-26 '9(jpf2j 0"'?3Q. 594 86
-TW4-07 E,{;i.oa-f o1,a. 636 120
TW4-01 SL.,_~~'l l;J,,~j 832 110 Cont. Pumping
TW4-39 5/~'!/~ 11!:ii 893 120 Cont. Pumping
TW4-4I 5{.2!1/.1~ jt.55 913 97.75 Cont. Pumping
TW4-02 Sf~,~ 1'-~1 925 120 Cont. Pumping
MW-04 5P,1Vi 12"10 950 124 cont. Pumping
TW4-04~':i# 996 112 Cont. Pumping
TW4-22 ." O'i5 2180 I 13.5 Cont. Pumping
TW4-ll S/&12.~ l'U.3 2530 100 Cont. Pumping
TW4-37 ~ b'f !1>5.5 8860 112 Cont. Pumping
TW4-60 D.I. Blank if-q/:;,'j l'iOD
TW4-65 Duplicate 7ii/~'-l 0700
TW4-70 Duplicate '=>lW.'l"I D<:iZ~
-TW4-75 Duplicate Et/20/~'j 0700
Comments:
Groundwater Discharge Permit
eF-Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID MW-04 Sampllng Program Chloroform Monitoring
Field Sample ID MW-04_05292024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 5/29/2024 12:40
Sample Date & Time 5/29/2024 12:40 !sample r TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 26
Purging Method 2Casings Previous Well Sampled TW4-02
Casing Volume (gal) 14.57
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 (mlcromhos) 1000 Depth to Water Before Purging (ft) 83.89
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units} Temp(deg C) Redox(mV} Turbidity (NTU) Oxygen(%) Before/After
5/29/2024 12:40 1962 7.13 16.03 337 0 34.9
Pumping Rate Calculations
[volume of water purged () Flow Rate (Q = S/60) (gal/min) 4.0
Time to evacuate 2 Casing Volumes O
!F inal Depth to Water (fee!)_ 84.06 Number of casing Volumes
Volume, if well evacuated to dryness () o
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-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 1235. Samples collected at 1240. Water was clear. Left site at 1242.
Signature of Field Technician
~u,c.u•--.:--1-/---t""C~
Groundwater Discharge Permit
eF-YFUEU>
Groundwater Monitoring Quality Assurance Plan
White Mesa MIii
Field Data Worksheet For Groundwater
Location ID TW4-01 Samplins Program Chloroform Monitoring
Field Sample ID TW4-01 05292024 Sampling_ Event 2024 Q2 Chloroform-2
Purge Date & Time 5/29/2024 12:48
Sample Date & Time 5/29/2024 12:48 [sampler TH/DL
Purging Equipment Pump Weather CondlUons Sunny
Pump Type ; Grundfos External Ambient Temperature (C) 27
Purging Method 2 Casings Previous Well Sampled MW-04
Casing Volume (gal) i 6.88
Calculated Casing Volumes Pur;ge 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 (micrombos) 1000 Depth to Water Before Purging (ft) 100.75
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
5/29/2024 12 :48 2317 7.16 16.48 309 1.8 78.5
Pumping Rate Calculations
[volume of water purged O Flow Rate (Q = S/60) (gal/min) 12.5
Time to evacuate 2 Casing Volumes ()
!Final Depth to Water (feet) 109.20 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-Chlorofomi y WATER 3 40mlVOA u HCl (pH<2), 4 Deg C y
Chloride y WATER 1 500-mLPoly u None N
Nitrate/nitrite as M y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments: I Arrived on site at 1244. Sam ples collected at 1248. Water was clear. Left site at 1250 .
Signature of Field Technician
~ •• , ...,,,..,._L..--..f-;,.: -«~) C
Groundwater Discharge Penni!
e~y~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID 1W4-02 Sampling Program Chloroform Monitoring
Field Sample ID I 1W~02_05292024 I Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time ; 5/29/2024 12:32
Sample Date & Time 5/29/2024 12:32 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 26
Purging Method 2Casings Previous Well Sampled TW4-11
Casing Volume (gal) I 11.51
Calculated Casing Volumes Purge Duration O
pH Buffer 7.0 7.0 Well Depth (ft) 120.90
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhas) 1000 Depth to Water Before Purging {ft) 103.27
Conductivity Dissolved
Date/Time Gallons Purged (umhosJcm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen{%) Before/After
5/29/2024 12:32 3905 7 .07 16.19 292 7.0 83.2
Pumping Rate Calculations -
!volume of water purged () Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes O
[Final Depth to Water (feet) 118.01 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Anal~cal Samples lnfonnaUon
; Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform ; y WATER 3 40mlVOA u HCl (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N; V WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 1228. Samples 1:ollected at 1232. Water was clear. Left site at 1234.
Signature of Field Technician
--=~)o,._,._,,A_+;'",..;-.("/'~) <
Groundwater Discharge Penni!
eF-y~ Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-03 Sampling Pro_gram Chloroform Monitoring
Fleld Sample ID TW4-03_06042024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/3/2024 12:02
Sample Date & Time 6/4/2024 12:10 [s am pler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 27
Purging Method 2Casings Previous Well Sampled TW4-60
Casing Volume (gal) 48.33
Calculated Casing Volumes Purg~ Duration (min) 8.78
pH Buffer 7 .0 : 7.0 Well Depth (ft) 140.30
pH Buffer 4.0 4.0 W ell Casing Diameter (in) 4
Specific Conductance (micromhcis) 1000 Depth to Water Before Purging (ft) 66.28
Conductivity Dissolved
DatefTime Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp(degC) Redox(mV) Turbidity (NTU) Oxygen(%) BeforeJAfter
6/3/2024 12:08 : 71.50 1911 6.73 15.40 460 3.6 76.3
6/4/202412:10 ' 1905 6.69 16.38 Before
6/4/202412:11 1915 6.73 16.30 After
Pumping Rate Calculations
!volume of water purged (gals) 71.50 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 6.50
[ Final Depth to Water (feet) 135.67 Number of casing Volumes 1.47
Volume, if well evacuated to dryness (gals) 71.50 I Nam e of CertJfied Analytical Laboratory
AWSL
An al ytical Sam e_les Information
Sample Container Preservative
Type of Sample/An i1lysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chlorofor'm 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-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
!Arrived on site at 1205. Depth to w~ter was 66.60. Samples bailed and collected at 1210. Left site at 1213.
Signature of Field Technician
~., -v-..r~"---..,<-;."--a~>
Groundwater Discharge Permit
eF--=-Groundwater Monitoring Quality Assurance Plan
White Mesa MIii
Fleld Data Worksheet For Groundwater
Location ID 'TW4-04 Sampling Program Chloroform Monitoring
Field Sample ID 1W4-04 05292024 Sampling Event 2024 Q2 Chloroform-2
' Purge Date & Time 5/29/2024 13:03
Sample Date & Time 5/29/2024 13:03 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 27
Purging Method 2Casings Previous Well Sampled 'TW4-41
Casing Volume (gal) 20.49
Calculated Casing Volumes Puige 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 (mlcromhos) 1000 Depth to Water Before Purging (ft) 83.11
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
5/29/2024 13:03 2411 7.19 17.05 300 0 102.1
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 (feetl 105 .78 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-Chloroforn) 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-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 1300 . Samples1 collected at 1303 . Water was clear. Left site at 1305.
Signature of Field Technician
~;.,,o.n.,•--,____.. .;.-;.-: -«'~~ • -<.1
GroundWater Discharge Permtt
E!'F---.. Grourdwater Morjjonng Qualtty Assurance Plan
White Mesa MIii
Field Data Worksheet For Groundwater
Location ID TW4-05 Sampling Pro_g_ram Chloroform Monitoring_
Fleld Sample ID TW4-05_06132024 Samplin_g_ Event 2024 Q2 Chloroform-2
Purge Date & Time 6/12/2024 12:34
Sample Date & Time 6/13/2024 6:24 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 32
Purging Method 2Casings Previous Well Sampled TW4-08
Casing Volume (gal) 31.24
Calculated Casing Volumes Purge Duration (min) 5.68
pH Buffer 7 .o ;
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) 74.00
Conductivity Dissolved
Date/Time Gallons Purged {gal) {um hos/cm) pH (pH Units) Temp(deg C) Redox(mV) Turbidity {NTU) Oxygen{%) Before/After
6/12/2024 12:38 I 44.00 1648 6.47 15.80 501 2.5 55.3
6/12/2024 12:39 : 55.00 1606 6.49 15 .78 481 2.6 52.1
6/12/202412:40 66.00 1589 6.51 15.78 473 2.6 50.0
6/12/2024 12:41 77.00 1568 6.53 15.75 465 2.5 49.0
Pumping Rate Calculations
[volume of water purged (gals) n.oo Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 7.00
[Final Depth to Water (feet) 74.97 Number of casing Volumes 2.00
Volume, If well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Anall1_ical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chlorofor:m y WATER 3 40mlVOA u HCl (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
N ltrate/nitrite a~ N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1229. Purge began at 1234. Purged well for a total of 7 minutes. Purged well for a total of 7 minutes. Water was clear. Purge ended at 1241. Left site at 1244.
Arrived on site at 0619. Depth to waier was 74.08. SamEles bailed and collected at 0624. Left site at 0627.
Signature of Field Technician
-=3,,,.J>.0_.J-;I. --:2~
Groundwater Discharge Permit
eF-.,~ Groundwater Monitoring Quality Assurance Plan
White Mesa MIii
Field Data Worksheet For Groundwater
Location ID : 1W4-06 Sampling Program Chloroform Monitoring
Field Sample ID 1W4-06_06122024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/11/2024 12:38
Sample Date & Time 6/12/2024 7:16 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type : Grundfos External Ambient Temperature (C) 31
Purging Method ! 2Casings Previous Well Sam'pled 1W4-34
Casing Volume (gal) 12.06
Calculated Casing Volumes Purge Duration (min) 2.19
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) 81.13
Conductivity Dlssolved
DatefTime Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/11/202412:41 11.00 3946 6.50 16.80 316 28.0 4.2
6/12/2024 7:16 3140 6.93 15.13
6/12/2024 7:17 : 3160 6.90 15.20
Pumping Rate Calculations
[volume of water purged (gals) 11.00 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min)
[ Final Depth to Water (feet) 96.99 Number of casing Volumes
Volume. if well evacuated to dryness {gals)
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Ana'tysis Collected? Matrix Number Type Sample Filtered? Type
VOCs-Chloroform y WATER 3 40mlVOA u HCl (pH<2), 4 Deg C
Chloride y WATER 1 500-mLPoly u None
Nitrate/nitrite as N y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C
Comments:
Arrived on site at 1234. Purge began at 1238. Purged well for a total of 1 minute. Purged well dry. Purge ended at 1239. Water was mostly clear. Left site at 1243.
Arrived on site at 0712. Depth to w~ter was 81.54. Samples bailed and collected at 0716. Left site at 0718.
Signature of Field Technician
~«~~,V-'C~ ~.J--/-4~)
Before
After
11.00
1.00
0.91
11.00
Added?
y
N
y
Gro1K1dwater Discharge Penni!
e,~Y~S
Groundwater Monitoring Quality Assurance Plan
White Mesa MIii
Field Data Worksheet For Groundwater
Location ID TW4-07 Sampling Program Chloroform Monitoring
Field Sample ID TW4-07 _06202024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time ♦ 6/19/2024 10:10
Sample Date & Time j 6/20/2024 7:42 jsampler I TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 24
Purging Method 2Casings Previous Well Sampled TW4-26
Casing Volume (gal) 24.81
Calculated Casing Volumes Purge Duration (min) 4.96
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) 83.00
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
6/19/2024 10:15 50.0 1687 7.20 15.21 217 6.0 39.0
6/20/2024 7:42 1721 7.28 15.77
6/20/2024 7:43 1720 7.27 15.75
Pumping Rate Calculations
[volume of water purged (gals) 50.0 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min)
[Final Depth to Water (feet) 117.89 Number of casing Volumes
Volume, if well evacuated to dryness (gals)
Name of Certified Analytical Labpratory
AWSL
AnalyticaJ Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type
voes-Chloroform y WATER 3 40mlVOA u HCl (pH<2), 4 Deg C
Chloride y WATER 1 500-mLPoly u None
Nitrate/nitrite as' N y WATER 1 250-mL HOPE u H2S04 {pH<2), 4 Deg C
Comments:
Arrived on site at 1005. Purge began at 1010. Purged well for a total of 5 minutes. Purge ended at 1015. Water was clear. Purged well dry. Left site at 1020.
Arrived on site at 0738. Depth to w'ater was 85.83. Samples bailed and collected at 0742. Left site at 0744.
Signature of Field Technician
_=:),.,, cn..•-,;;-~F-✓c~, <-·
Before
After
10.00
5.00
2.00
50.0
Added?
y
N
y
I
Groundwater Discharge Permit
·eF-y,~aqs
I
Groundwater Monitoring Quality Assurance Plan
White Mesa MIii
Field Data Worksheet For Groundwater
Location ID TW4-08 Sampling Program Chloroform Monitoring
Field Sample ID ; TW4-08_06132024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/12/2024 8:16
Sample Date & Time 6/13/2024 6:09 !s ampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 23
Purging Method 2Casings Previous Well Sampled TW4-09
Casing Volume (gal) 26.37
Calculated Casing Volumes Purge Duration (min) 4.79
pH Buffer 7.0 7.0 Well Depth (ft) 126.20
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (microml)os) 1000 Depth to Water Before Purging (ft) 85.81
' Conductivity Dissolved
Date/Time Gitlllons Purged (gal) (umhos/cm) pH (pH Units) Temp(deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/12/2024 8:19 33.00 4571 6.70 15.64 294 10.0 4.0
6/12/2024 8:20 44.00 4570 6.71 15.53 293 9.0 3.9
6/12/2024 8:21 55.00 4568 6.74 15.43 293 8.8 4.0
6/12/2024 8:22 66.00 4568 6.75 15.44 293 8.6 3.9
Pumpi ng 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) 104.87 Number of casing Volumes 2.00
Volume, if well evacuated to dryness () 0
Name of Certified Analytical La ~o ra tory
AWSL
Analytical Samples Information
I Sample Container Preservative
Type of Sample/A~alysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chlorofoj-m y WATER 3 40mlVOA u HCl (pH<2), 4 Deg C y
Chloride y WATER 1 500-mLPoly u None N
Nitrate/nitrite as N y WATER 1 250-mLHDPE I u H2SO4 (pH<2), 4 Deg C y
Comments:
Arrived on site at 0812. Purge began at 0816. Purged well for a total of 6 minutes. Purge ended at 0822. Water was mostly clear. Left site at 0826.
A rri ved on site at 0604. Depth to v~ater was 86.02. Samp le s bailed and collected at 0609. Left site at 0610.
Signature of Field Technician
~"'-~""--c....-..f;/; -_{'c~}
Groundwater Discharge Permit
e~~ Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-09 Sampling Program Sampling Program Chloroform Monitoring Chloroform Monitoring
Field Sample ID TW4-09 06122024 Sampling Event Sampling Event 2024 Q2 Chloroform-2 2024 Q2 Chloroform-2
Purge Date & Time 6/11/202414:15
Sample Date & Time 6/12/2024 7:43 !sampler !sampler I TH/DL TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 32
Purging Method 2Caslngs Previous Well Sampled TW4-27
Casing Volume (gal) 31.46
Calculated Casing Volumes Purge Duration (min) 5.72
pH Buffer 7 .0 7.0 Well Depth (ft) 120.10
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhqs) 1000 Depth to Water Before Purging (ft) 71.92
Conductivity Dissolved
DatefTlme Ga[lons Purged (gal) (umhos/cm) pH (pH Units) Temp(deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/11/202414:19 44.00 2505 6.65 15.50 334 27.0 1.0
6/11/2024 14:20 55.00 2496 6.68 15.48 331 28.0 1.1
6/11/2024 14:21 66.00 2495 6.70 15.45 327 29.0 1.0
6/11/2024 14:22 77.00 2490 6.72 15.42 324 29.3 1.0
Pumping Rate Calculations
jvolume of water purged (gals) 77.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 7.00
!Final Depth to Water (feet) 72.65 Number of casing Volumes 2.00
Volume, if well evacuated to dryness O 0
Name of Certified Analytical Laboratory
AWSL
Analytlcal Samples Information
1
I Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroforin y WATER 3 40mlVOA u HCl (pH<2), 4 Deg C y
Chloride V WATER 1 500-mLPoly 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 1410. Purge begal, at 1415. Purged well for a total of 7 minutes. Purge ended aM422. Water was a little murky. Left site at 1435.
Arrived on site at 0740. Depth to water was 72.00. Samples bailed and collected at 0743. Left site at 0745.
Signature of Field Technician
~s,,lJ\M_ ...... /;/c-4~
I
Groundwater Discharge Permit
C:9~.,~ Groundwater Monitoring Quality Assurance Plan
White Mesa MIii
Field Data Worksheet For Groundwater
Location ID TW4-10 Sampling Program Chloroform Monitoring
Field Sample ID : TW4-10_06202024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/19/2024 8:35
Sample Date & Time 6/20/2024 7:10 [sa1t1pler TH/DL
Purging Equipment I Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 20
Purging Method ! 2Casings Previous Well Sampled TW4-16
Casing Volume (gal) 27.47
Calculated Casing Volumes Purge Duration (min) 5.49
pH Buffer 7.0 7.0 Well Depth (ft) 113.20
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (mlcromhos): 1000 Depth to Water Before Purging (ft) 71 .12
' Conductivity Dissolved
Datetrlme Galloos Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
6/19/2024 8:38 35.00 2307 6.50 15.33 385 19.1 15.7
6/20/2024 7:10 2024 6.79 16.10 Before
6/20/2024 7:11 2032 6.80 16.05 After
Pumping Rate Calculations
[volume of water purged (gals) 35 .0 Flow Rate (Q = S/60) (gal/min) 10.00
Time to evacuate 2 Casing Volumes (min) 3.50
[ Final Del)th to Water (feet) 111.02 Number of casing Volumes 1.27
Volume, if well evacuated to dryness (gals) 35_0
Name of Certified Analytical Labora!ory
AWSL
Anal~ical Samples Information
Sample Container Preservative
I
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform . y WATER 3 40mLVOA u HCL (pH<2}, 4 Deg C
Chloride y WATER 1 500-ml Poly u None
Nitrate/nitrite as N y WATER 1 250-mLHDPE u H2SO4 (pH<2}, 4 Deg C
Comments:
Arrived on site at 0831 . Purge began ~t 0835. Purged well for a total of 3 minutes and 30 seconds . Purged well dry. Purge ended at 0838. Water was a little murky. Left site at 0842.
Arri ved on site at 0706 . Depth lo water was 71.24 . Sam pl es balled and collected at 071 O. Left site at 0712 .
Signature of Field Technician
-==:"}, ,, ,,,,,_,c_.. -;-;,.,4~
y
N
y
Groundwater Discharge Permit
e~y~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID 1W4-11 Sampling Program Chloroform Monitoring
Field .Sample ID ' 1W4-11_05292024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 5/29/2024 12:23
Sample Date & Time 5/29/2024 12:23 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 25
Purging Method : 2Casings Previous Well Sampled MW-26
Casing Volume (gal) 8.02
Calculated Casing Volumes Purge Duration O
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) 90.11
Conductivity Dissolved
Date!Tlme Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
5/29/2024 12:23 3756 7.01 16.76 254 1.9 101.3
Pu mp ing Rate Calculations
jvolume of water p u rg ed () Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes () I Final Depth to Water (feet) 100.01 Number of casing Volumes
Volume, if well evacuated to dryness () 0 I Name of Certified Analytical Laboratory
AWSL
Ana lytical Sampl es Information
Sample Container Preservative
' Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-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-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments: I Arrived on site at 1218. Samp les "collected at 1223. Water was clear. Left site at 1225.
Signature of Field Technician
.. =::y,,,,,,,~ -/-f:4~
~~· -.;-~~.,~
Location ID i
Field Sample ID
Purge Date & Time :
Sample Date & Time I
Purging Equipment '
Pump Type
Purging Method
Casing Volume (gal) :
Calculated Casing Volumes Purge Duration (min)
pH Buffer 7.0
pH Buffer 4.0
Specific Conductance (micromhos)
Date/Time Gallons Purged (gal)
6/10/2024 12:26 38.50
6/11/2024 6:30
6/11/2024 6:31 :
!volume of water purged (ga13!l ,
[Final Depth to Water (feet}
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Type of Sample/Analysis
voes-Chloroform
Chloride
Nitrate/nitrite as:N
Comments:
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
1W4-12 Sampling Program Chloroform Monitoring
TW4-12 06112024 Sampling Event 2024 Q2 Chloroform-2
6/10/2024 12:23
6/11/2024 6:30 !sample r TH/DL
Pump Weather Conditions Cloudy
Grundfos External Ambient Temperature (C) 27
2Casings Previous Well Sampled TW4-42
29.97
5.44
7.0 Well Depth (ft) 103.20
4.0 Well Casing Diameter (in) 4
1000 Depth to Water Before Purging (ft) 57.30
Conductivity Dissolved
(um hos/cm) pH (pH Units) Temp(deg C) Redox(mV) Turbidity (NTU) Oxygen(%) BeforelAfter
1478 7.36 15.76 286 4.9 52.0
1390 6.98 15.91 Before
1406 7.00 15.87 After
Pumping Rate Calculations
38.50 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 3.50
100.76 Number of casing Volumes 1.28
Volume, if well evacuated to dryness (gals) 38.50
Sample Container Preservative
Collected? Matrix Number Type Sample Filtered? Type Added?
y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
y WATER 1 500-mLPoly u None N
y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Arrived on site at 1218. Purge began at 1223. Purged well for a total of 3 minutes and 30 seconds. Purged well dry. Purge ended at 1226. Water was clear. Left site at 1239.
Arrived on site at 0626. Depth to water was 57.45. Samples bailed and collected at 0630. Left site at 0632.
Signature of Field Technician
.:=).,,,~..,__-,f,,i'"-~c~
Groundwater Discharge Permit e,,;::__, Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Fleld Data Worksheet For Groundwater
Location ID 1W4-13 Sampling Program Chloroform Mon ito ring
Field Sample ID ; TW4-13 06112024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/10/2024 14:22
Sample Date & Time 6/11/2024 7:15 !sampler TH/DL
Purging Equ ipment Pum p Weather CondiUons Clo ud y
Pump Type : Grundfos External Ambient Temperature (C) 28
P urging Method
'
2Casings Previous Well Sampled TW4-32
Casing Volume (gal) 31.01
Calculated Casing Volumes Purge Duration (min) 5.63
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) 58.20
I Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp(deg C) Redox(mV} Turbidity (NTU) Oxygen(%) Before/After
6/10/202414:26 44.00 2036 6.66 15 .68 437 2.7 8 5.8
6/11 /2024 7 : 15 2136 7.15 15.21
6/11/2024 7:16 ' 2145 7.12 15.15
Pumping Rate Calculations
[volume of water _purged (gals) , 44.00 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min) I Final Depth to Water (feet) 102.53 Number of ca si ng Volumes
Volume, if well evacuated to dry ness (gal s)
Name of Certified Anal~cal Laboratory_
AWSL
Analytical Sample.s Information
Sample Container PreseNatlve
' Ty pe of Sample/An~lys ls Collected? Matrix Number Ty pe Sample Filtered? Type
VOCs-Chlorofor:,n y WATER 3 40mlVOA u HCl (pH<2), 4 Deg C
Chloride : y WATER 1 500-mLPoly u None
Nitrate/nitrit e as: N y WATER 1 250-mLHDPE u H2SO4 {pH<2), 4 Deg C
Comments:
Ar rive d on site at 1418. Purge begj3n at 1422 . Purged well for a total of 4 minutes. Purged we ll dry. Purge ended at 1426. Water was clear. Left site at 1430.
Arriv ed on site at 0711 . Depth to water was 58.44. Samp les bailed and collected at 0715. Left site at 0717 .
Signature of Field Technician
~"-~,i.r-,:~-.,•;,''--C/~)
Before
After
11.00
4.00
1.41
44.00
Added?
y
N
y
Groundwater Discharge Permit
-eF-~~ Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-14 Sampling Program Sampling_ Program Chloroform Monitoring Chloroform Monitoring
Field Sample ID TW4-14_06122024 Sampling Event Sampling_ Event 2024 Q2 Chloroform-2 2024 Q2 Chloroform-2
Purge Date & Time 6/11/2024 8:24
Sample Date & Time 6/12/2024 6:24 !sampler [sampler I TH/DL TH/DL
Purging Equipment I Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 21
Purging Method 2Casings Previous Well Sampled TW4-36
Casing Volume (gal} 11.49
Calculated Casing Volumes Purge Duration (min) 2.08
pH Buffer 7 .0 7.0 Well Depth (ft) 95.10
pH Buffer 4.0 ' 4.0 Well Casing Diameter (In) 4
Specific Conductance (micromtios) 1000 Depth to Water Before Purging (ft) 77.50
Conductivity Dissolved
DatefTime Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/11/2024 8:25 14.66 1686 6.63 16.15 300 20.0 88.0
6/12/2024 6:24 5427 6.56 15.05
6/12/2024 6:25 5429 6.58 15.02
Pumping Rate Calculations
!volume of water purged (gals) 14.66 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min)
[ Final Depth to Water (feet) 92.97 Number of casing Volumes
Volume, if well evacuated to dryness (gals)
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
: Sample Container Preservative
' Type of Sample/An~lysis Collected? Matrix Number Type Sample Filtered? Type
VOCs-Chlorofo(m y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C
Chloride : y WATER 1 500-ml Poly u None
Nitrate/nitrite as N y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C
Comments:
Arrived on site at 0820. Purge beg~n at 0824. Purged well for a total of 1 minute and 20 seconds. Purged well dry. Purge ended at 0825. Left site at 0828.
Arrived on site at 0620. Depth to water was 77.60. Samples bailed and collected at 0624. Left site at 0626.
Signature of Field Technician
~"' t.n.,•-c...-.J.-;I'' ✓c.'~)
Before
After
11.00
1.33
1.27
14.66
Added?
y
N
y
I
Groundwater Discharge Permit
E'F-~ Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID MW-26 Sampling Prog_ram Chloroform Monitoring
Field Sample ID MW-26_05292024 Samplin9 Event 2024 Q2 Chloroform-2
Purge Date & Time 5/29/2024 12:08
Sample Date & Time 5/29/2024 12:08 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 25
Purging Method 2 Casings Previous Well Sampled 1W4-39
Casing Volume (gal) 24.29
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) 84.12
Conductivity Dissolved
DatefTime Gal.Ions Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
5/29/202412:08 3485 7.02 16.41 318 1.1 48.9
Pumping Rate Calculations
jvolume of water purged () Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes ()
[ Final Depth to Water (feet) 115.49 Number of casing Volumes
Volume, if well evacuated to dryness () 0 I 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-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
/ Arrived on site at 1204. Samples.collected at 1208. Water was clear. Left site at 1210.
Signature of Field Technician
..::::)c,,v,,,_c...., -I--/ £C~
Groundwater Discharge Permit
eF-Y~S
Groundwater Monitoring Quality Assurance Plan
White Mesa MIii
Field Data Worksheet For Groundwater
Location ID TW4-16 Sampling Program Chloroform Monitoring_
Field Sample ID TW4-16_06202024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/19/2024 8:00
Sample Date & Time 6/20/2024 7:00 jsampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type l Grundfos External Ambient Temperature (C) 19
Purging Method 2 Casings Previous Well Sampled MW-32
Casing Volume (gal) 47.60
Calculated Casing Volumes Purge Duration (min) 9.52
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) 74.70
Conductivity Dissolved
Date/Time G~llons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/19/2024 8:07 . 70.00 3420 6.68 14.95 290 23.0 9.7
6/19/2024 8:08 80.00 3570 6.70 14.96 284 21.9 10.0
6/19/2024 8 :09 ' 90.00 3610 6.74 14.97 280 20 .3 11.0
6/19/2024 8:10 100.00 3626 6.75 14.97 279 21.0 12.0
Pumping Rate Calculations
!volume of water purged (gals) 100.00 Flow Rate (Q = S/60) (gal/min) 10.00
Time to evacuate 2 Casing Volumes (min) 10.00
!Final Depth to Water (feet} 110.34 Number of casing Volumes 2.00
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Lab'oratory
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 HCl (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 H2SO4 (pH<2), 4 Deg C y
Comments:
Arrived on site at 0755. Purge beg!,ln at 0800. Purged well for a total of 10 minutes . Purge ended at 0810. Water was a little murky. Left site at 0813.
Arrived on site at 0655. Depth to w.ater was 75.03. Samples bailed and collected at 0700. Left site at 0704.
Signature of Field Technician
~.,,:.,,,.•~,___-f;,-'.~£~
Groundwater Dlscharye Permit
eF-Groundwater Monitoring Quality Assurance Plan
-~
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-16R Sampling Program
Field Sample ID TW4-16R_ 06192024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time
Sample Date & Time 6/19/2024 7:50 !sampler TH/DL
Purging Equipment Weather Conditions
Pump Type External Ambient Temperature ()
Purging Method Previous Well Sampled
Casing Volume ()
Calculated Casing Volumes Purge Duration O
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
6/19/2024 7:49 133.00 13.9 8.31 21.02 244 0 21.7
Pumping Rate Calculations
!volume of water purged () Flow Rate (Q = S/60) ()
Time to evacuate 2 Casing Volumes ()
!Final Depth to Water (feet) Number of casing Volumes
Volume, if well evacuated to dryness ()
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
' Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-mLPoly u None N
Nitrate/nitrite a$ N y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
Signature of Field Technician
~J.. Cl'h"L.--I-;-*-: d~)
Groundwater Discharge Permit
e~~~ Groundwater Monitoring Quarrty Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID MW-32 Sampling Program Chloroform Monitoring
Field Sample ID MW-32 _06192024 Sampllng Event 2024 Q2 Chloroform-2
Purge Date & Time 6/19/2024 6:50
Sample Date & Time 6/19/202411:50 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type QED External Ambient Temperature (C) 18
Purging Method 2Casings Previous Well Sampled TW4-18
Casing Volume (gal) 30.67
Calculated Casing Volumes Purge'. Duration (min) 282.74
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) 83.62 .
Conductivity Dissolved
Date/Time Gidlons Purged (gal) (um hos/cm) pH {pH Units) Temp (deg C} Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
6/19/202411:47 64.44 1277 6.60 15.80 223 8.3 8.2
6/19/202411:48 64.66 1210 6.63 15.75 200 8.3 8.0
6/19/2024 11:49 64.88 1232 6.65 15.76 193 8.1 7.5
6/19/2024 11:50 65.10 1251 6.65 15.72 188 7.9 7.3
Pumping Rate Calculations
[volume of water purged (gals) 65.10 Flow Rate (Q = S/60) (gal/min) .217
Time to evacuate 2 Casing Volumes (min) 300.00
I Final Depth to Water (feet) 87.53 Number of casing Volumes 2.00
Volume, if well evacuated to dryness() 0
Name of Certified Analytical Labo1atory
AWSL
Anal}'t_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 HCl (pH<2), 4 Deg C y
Chloride y WATER 1 500-mLPoly u None N
Nitrate/nitrite a~; N y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments: I Arrived on site at 0646. Purge begiin at 0650. Purged well for a total of 300 minutes. Purge ended and samples collected at 11 q0. Water was a liWe murky. Left site at 1155.
Signature of Field Technician
------.... . ~· /)✓• /
---..)( ... :..>u-.-C.-~~::: ,-~ _£--~~
Groundwater Discharge Penni!
✓eF-.,~ Groundwater Monltor1ng Quality Assurance Plan
White Mesa Mill
Fleld Data Worksheet For Groundwater
Location ID TW4-18 Sampling Program rogram Chloroform Monitoring Chloroform Monitoring
Field Sample ID TW4-18 06132024 Sampling Event Sampling Event 2024 Q2 Chloroform-2 2024 Q2 Chloroform-2
Purge Date & Time 6/12/2024 14:29
Sample Date & Time 6/13/2024 7:07 !sampler !sampler I TH/DL TH/DL
Purging Equipment : Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 33
Purging Method 2Casings Previous Well Sampled TW4-33
Casing Volume (gal) 40.40
Calculated Casing Volumes Purge Duration (min) 7.34
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) 75.02
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhoslcm) pH (pH Units) Temp (deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/12/2024 14:36 ; 77.00 2071 6.24 15.80 463 6.0 9.7
6/12/2024 14:37 ; 88.00 2045 6.23 15.82 453 6.3 10.0
6/12/2024 14:38 ; 99.00 2018 6.27 15.81 444 6.3 10.0
6/12/2024 14:39 110.00 1998 6.30 15.87 434 6.4 10.3
Pumping Rate Calculations
[volume of water purged (gals) 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~t} 76.89 Number of casing Volumes 2.00
Volume, if well evacuated to dryness O 0
Name of Certified Analytical Laboratory
AWSL
Analytlcal Samples Information ;
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chlorotoim y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride ' y WATER 1 500-ml Poly u None N
Nitrate/nit rite as N y WATER 1 250-mLHDPE u H2SO4 (pH<2}, 4 Deg C y
Comments:
Arrived on site at 1425. Purge began at 1429. Purged well for a total of 10 minutes. Purge ended at 1439. Water was mostly clear. Left site at 1443.
Arrived on site at 0703. Depth to water was 75.13. Samples bailed and collected at 0707. Left site at 0708.
Signature of Field Technician
--=:.),, ,,.,,,~-f;,.· 4~
I
Groundwater Discharge Permit
eF-----Groundwater Monitoring Quality Assurance Plan
White Mesa MIii
Field Data Worksheet For Groundwater
Location ID , TW4-19 Sampling_ Program Chloroform Monitoring
Field Sample ID TW4-19_05292024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 5/29/2024 13:35
Sample Date & Time 5/29/2024 13:35 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 28
Purging Method 2 Casings Previous Well Sampled
Casing Volume (gal) 34.09
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 (micrornhos) 1000 Depth to Water Before Purging (ft) 74.65
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
5/29/2024 13:35 2781 6.76 17.42 435 0.6 25.4
Pumping Rate Calculations -
[volume of water purged() Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes ()
[Final Depth to Water (feet) 77.92 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytlcal Laporatory
AWSL
Analyt_ical Samples Information
Sample Container Preseivative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCl (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite asN y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 1331 . Samples collected at 1335. Water was clear. Left site at 1337 .
Signature of Field Technician
~.,,,.,..,_,,_ .. f·/,-a"~
Groundwater Discharge Permit
E'F---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_05292024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 5/29/202410:15
Sample Date & Time 5/29/202410:15 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature {C) 21
Purging Method 2Casings Previous Well Sampled NIA
Casing Volume (gal) 28.47
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 (mlcromhos) 1000 Depth to Water Before Purging (ft) 75.20
Conductivity Dissolved
Date/Time G~llons Purged {umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
5/29/2024 10:15 3104 6.80 16.01 379 0 99.0
Pumping Rate Calculations
jvolume of water purged O Flow Rate (Q = S/60) (gal/min) 16.0
Time to evacuate 2 Casing Volumes O
[ Final Depth to Water (feet) 83.98 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-Chloroforn1 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-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments: I Arrived on site at 1010 . Samples collected at 1015 . Water was clear. Left site at 1020 .
Signature of Field Technician
--==:')J J LM ~"---"";_,;• -a~
Groundwater Discharge Permit
E'F-,,---Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-22 Sampllng _ _F'r_ogram Chloroform Monitoring
Field Sample ID TW4-22_05292024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 5/29/2024 10:45
Sample Date & Time 5/29/2024 10:45 [sampler TH/DL
Purging Equipment : Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 23
Purging Method 2Casings Previous Well Sampled TW4-24
Casing Volume (gal) ; 28.90
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 (micromnos) 1000 Depth to Water Before Purging (ft) 70.48
Conductivity Dissolved
Date/Time G.allons Purged (umhoslcm) pH (pH Units) Temp (deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
5/29/2024 10:45 5072 6.50 16.15 382 1.1 33.4
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) 109.44 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 HCl (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite aii N y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 1040. Samples: collected at 1045. Water was clear. Left site at 1047.
Signature of Field Technician
~" ,v.,,,"-----r;;, -c?."~
Groundwater Discharge Permit
eF-Groundwater Monitoring Quality Assurance Plan
y~
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID ' TW4-23 Sampling Pro~ram Chloroform Monitoring
Field Sample ID ' TW4-23_06122024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time : 6/11/2024 10:34
Sample Date & Time 6/12/2024 6:50 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 25
Purging Method ; 2Casings Previous Well Sampled TW4-43
Casing Volume (gal) 25.32
Calculated Casing Volumes Purge Duration (min) 4.60
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) 77.62
Conductivity Dissolved
DatefTime Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/11/2024 10:42 44.00 3482 6.70 14.83 281 3.0 4.3
6/11/2024 10:43 ; 55.00 3492 6.75 14.84 250 2.9 4.1
6/11/2024 10:44 66.00 3471 6.80 14.79 236 2.8 4.0
6/11/202410:45 77.00 3484 6.85 14.89 230 2.9 4.3
Pumping Rate Calculations
[volume of water purged (gals) 77.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 7.00
[Final D_e_e_th to Water (feet) 98.45 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-Chloroforrri y WATER 3 40mlVOA u HCl(pH<2), 4Degc 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 1034. Purge begarl at 1038. Purged well for a total of 7 minutes. Purge ended at 1045. Water had an orange coloration. Left site at 1049.
Arrlyed on site at 0646 . Dep th to waler was 77. 70. Sa mp les bailed and collected at 0650. Left site at 0651 .
Signature of Field Technician
--==:'),.,.,, •. __ ..____-/-;~--a~
<.,1
Groundwater Discharge Permit
e£m.-s Groundwater Monitor1ng Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID 1W4-24 Sampling Program Chloroform Monitoring
Field Sample ID 1W4-24_05292024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time ! 5/29/202410:35
Sample Date & Time 5/29/2024 10:35 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type : Grundfos External Ambient Temperature (C) 22
Purging Method 2 Casings Previous Well Sampled 1W4-25
Casing Volume (gal) . 29.21
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 (micromhios) 1000 Depth to Water Before Purging (ft) 70.06
Conductivity Dissolved
DatefTlme Gallons Purged (umhos/cm) pH (pH Units) Temp(deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
5/29/202410:35 6827 6.77 15.95 404 0.5 16.0
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) 85.61 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical La!J'.oratory
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 HCl {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 1030 . Samp les ;co11ected at 1035 . Water was clear. Left site at 1037.
Signature of Field Technician
--==).,,v,-,.-,_. -,J-;-i'.· ✓L'~
Groundwater Discharge Permit
eF-y~ Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-25 Sampling Program Chloroform Monitoring
Field Sample ID TW4-25 _05292024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 5/29/2024 10:24
Sample Date & Time ' 5/29/202410:25 [samp le r TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type : Grundfos External Ambient Temperature (C) 21
Purging Method 2Casings Previous Well Sampled TW4-21
Casing Volume (gal) I 43.63
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) 69.87
Conductivity Dissolved
Date/Time Gal.Ions Purged (um hos/cm) pH (pH Units) Temp (deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
5/29/202410:25 2551 7.11 16.03 402 4.0 86.0
P umping Rate Calculations
[volume of water purged () Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes ()
[ Flnal Depth to Water (feet) 103.45 Number of casing Volumes
Volume, if well evacuated to dryness () 0
[Name of Certified Analyti cal Latioratory
AWSL
Analytical Samples Information
: Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Ch loroforlT\ y WATER 3 40mlVOA u HCI (pH<2}, 4 Deg C y
Chloride r y WATER 1 500-mLPoly u None N
Nitrate/nitrite as I\) y WATER 1 250-mLHDPE u H2SO4 (pH<2}, 4 Deg C y
Comments: l Arrived on site at 1020. Samples:oo ll ected at 1025. Water was clear. Left site at 1028.
Signature of Fleld Technician
~.,, V,;,.--<'.-?';'•-tZ~
Groundwater Discharge Pennlt e~ Groundwater Monttoring Quality Assurance Plan
Y~S
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-26 Sampling Program Chloroform Monitoring
Field Sample ID TW4-26_06202024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/19/2024 9:41
Sample Date & Time 6/20/2024 7:32 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 23
Purging Method 2Casings Previous Well Sampled TW4-29
Casing Volume (gal) 7.70
Calculated Casing Volumes Purg~ Duration (min) 1.54
pH Buffer 7.0 7.0 Well Depth (ft) 87.70
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 75.90
Conductivity Dissolved
DateITime Gailons Purged (gal) (umhos/cm) pH (pH Units) Temp(deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/19/2024 9:42 7.50 4563 6.68 16.45 343 6 .8 57.0
6/20/2024 7:32 4749 6.85 15.85
6/20/2024 7:33 4758 6.85 15.82
Pumpi ng Rate Calculations I volume of water purged (gals) 7.50 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min)
[Final Dept h to Water (feet) 85.52 Number of casing Volumes
Volume, if well evacuated to dryness (gals)
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information i
Sample Container Preservative
Type of Sample/Ana·lysis Collected? Matrix Number Type Sample Filtered? Type
VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C
Chloride : y WATER 1 500-mLPoly u None
Nitrate/nitrite asN y WATER 1 250-mLHDPE u H2S04 (pH<2), 4 Deg C
Comments:
Arrived on site at 0937. Purge began at 0941. Purged well for a 45 seconds. Purged well dry. Purge well dry. Purge ended at 0941. Water was clear. Left site at 0944.
Arrived on site at 0728. Depth to wa ter was 7_§_.28. Samples bailed and collected at 0732. Left site at 0734.
Signature of Field Technician
~~-~~-"---i';"'-a'~
Before
After
10.00
0.75
0.97
7.50
Added?
y
N
y
Groundwater Discharge Permit e,,;:_, __ , Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-27 Sampling Program Chloroform Monitoring
Field Sample ID TW4-27 _06122024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/11/2024 13:43
Sample Date & Time ! 6/12/2024 7:34 !sampler I TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 32
Purging Method 2Caslngs Previous Well Sampled TW4-35
Casing Volume (gal) ; 10.65
Calculated Casing Volumes Purge Duration (min) 1.93
pH Buffer 7.0 7.0 Well Depth (ft) 95.75
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Spe ci f ic Condu ctance (micromh qs) 1000 Depth to Water Before Purging (ft) 79.43
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp(deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/11/2024 13:44 11.00 5239 7.20 17.01 225 16.0 55.0
6/12/2024 7:34 5141 6.50 15.20 Before
6/12/2024 7:35 5148 6.54 15.18 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) 93.44 Number of casing Volumes 1.03
Volume, if well evacuated to dryness (gals) 11,00
Name of Certified Anal)'tical Labc'Jratory
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 HCl (pH<2), 4 Deg C y
Chloride y WATER 1 500-mLPoly u None N
Nitrate/nitrite as ;N y WATER 1 250-mLHDPE u H2SO4 (pH<2). 4 Deg C y
Comments:
A rrived on site at 1339. Purge began at 1343. Purged well for a total of 1 minute. Purged well dry. Water was mostly clear. Purge ended at 1344. Left site at 1346.
A rri ved on site at 0730. Depth to water was 80.06. Samples bailed and collected at 0734. Left site at 0736.
Signature of Field Technician
...::::_') ,_., tJ,,_A_, -r;,1., -«~)
I
Groundwater Discharge Permit
.e~--&Y
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID ; 1W4-28 Sampling Program Chloroform Monitoring
Field Sample ID 1W4-28_06112024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/10/202413:01
Sample Date & Time 6/11/2024 6:40 [sampler TH/DL
Purging Equipment Pump Weather Conditions Cloudy
Pump Type Grundfos External Ambient Temperature (C) 28
Purging Method ' 2 Casings Previous Well Sampled ' 1W4-12
Casing Volume (gal) 38.02
Calculated Casing Volumes Purge Duration (min) 6.91
pH Buffer 7.0 7.0 Well Depth (ft) 108.48
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromho;s) 1000 Depth to Water Before Purging (ft) 50.25
Conductivity Dissolved
DatefTlme Gallons Purged (gal) {umhos/cm) pH {pH Units) Temp(deg C) Redox {mV} Turbidity (NTU) Oxygen(%) Before/After
6/10/2024 13:05 52.25 1689 6.80 15.49 515 2.4 93.6
6/11/2024 6:40 ' 1664 7.28 15.05
6/11/2024 6:41 1668 7.27 15.04
Pumping Rate Calculations
[volume of water purged (gals) 52.25 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min)
[Fi nal Depth to Wate_r_(feet) 105.52 Number of casing Volumes
Volume, if well evacuated to dryness (gals)
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type
voes-Chloroform y WATER 3 40mlVOA u HCl (pH<2), 4 Deg C
Chloride y WATER 1 500-mLPoly u None
Nitrate/nitrite as ilJ y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C
Comments:
Arrived on site at 1257. Purge begar'.I at 1301. Purged well for a total of 4 minutes and 45 seconds. Purged well dry. Purge ended at 1305. Water was clear. Left site at 1309.
Arrived on site at 0635. Depth to water was 50.48. Samples bailed and collected at 0640. Left site at 0642.
Signature of Field Technician
--=::),,, ...... ,--<...., -,-'-:;,,,--t:/;.,C,) <
Before
After
11.00
4.75
1.37
52.25
Added?
y
N
y
Groundwater Discharge Permit e~ 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 06202024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/19/2024 9: 10
Sample Date & Time 6/20/2024 7:22 [sampler TH/DL
Purging Equipment '
Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 22
Purging Method 2Casings Previous Well Sampled TW4-10
Casing Volume (gal) ' 9.39
Calculated Casing Volumes Purge Duration (min) 1.87
pH Buffer 7.0 7.0 Well Depth (ft) 94.48
pH Buffer 4.0 ' 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhoa) 1000 Depth to Water Before Purging (ft) 80.10
I Conductivity Dlssolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp(deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/19/2024 9:11 10.00 3940 6.77 16.45 354 4.5 89.0
6/20/2024 7:22 3831 7.17 15.88 Before
6/20/2024 7:23 3844 7.15 15.83 After
Pumpi ng_ Rate Calculations
!volume of water purged (gals) 10.00 Flow Rate (Q = 5/60) (gal/min) 10.00
Time to evacuate 2 Casing Volumes (min) 1.00
[ Final Depth to Water (feet) 92.30 Number of casing Volumes 1.06
Volume, if well evacuated to dryness (gals) 10.00
Name of Certified Analytical Laboi-a_to_ry_
AWSL
Analtt_l cal Samples Information
I Sample Container Preservative
Type of Sample/Anatysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroforn;) y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-mLPoly u None N
Nitrate/nitrite as r:,J y WATER 1 250-mLHDPE u H2S04 (pH<2), 4 Deg C y
Comments:
Arrived on site at 0906. Purge began at 0910. Purged well for the a total of 1 minute. Purge well dry. Purge ended at 0911. Water was clear. Left site at 0914.
A rrived on site at 0717. Oep1h to water was 80.07. Samples bailed and collected at 0722. Left site at 0724.
Signature of Field Technician
~,.,w~.J-;,-,-t(,.("~
Groundwater Discharge Permit
<='~y~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID ' TW4-30 Sampllng Program Chloroform Monitoring
Field Sample ID '
TW4-30_06132024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/12/202413:09
Sample Date & Time 6/13/2024 6:41 !sampler TH/DL
Purging Equipment I Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 33
Purging Method 2Casings Previous Well Sampled TW4-05
Casing Volume (gal) 11.76
Calculated Casing Volumes Purge Duration (min) 2.13
pH Buffer 7.0 7.0 Well Depth (ft) 93.48
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromho$) 1000 Depth to Water Before Purging (ft) 75.47
Conductivity Dissolved
DatefTime Gallons Purged (gal) (umhoslcm) pH (pH Units) Temp (deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/12/2024 13: 10 11.00 4680 6.06 16.48 311 17.0 32.0
6/13/2024 6:41 4683 6.15 15.66
6/13/2024 6:42 4687 6.14 15.60
Pumpl'!_g Rate Calculations
jvolume of water putt.Jed (g_als) 11.00 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min)
I Final Depth to Water (feet) 91.16 Number of casing Volumes
Volume, if well evacuated to dryness ()
Name of Certified Anal}'tlcal Labo~atory
AWSL
Analytical Samfl_les Information 1
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type
VOCs-Chloroforni y WATER 3 40mlVOA u HCl (pH<2), 4 Deg C
Chloride y WATER 1 500-mLPoly u None
Nitrate/nitrite as N y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C
Comments:
Arrived on site at 1305. Purge bega11 at 1309. Purged well for a total of 1 minute. Purged well dry. Water was a little murky. Purge ended at 1310. Left site at 1313.
Arrived on site at 0637. Depth to wa(er was 75.69. Samples bailed and collected at 0641. Left site at 0643.
Signature of Field Technician
~«' uu,.-L..,•~'--~t""/~)
Before
After
11.00
1.00
0.93
Added?
y
N
y
Groundwater Discharge Pennlt
e~v~
Groundwater Monitoring Quality A ssurance Plan
White Mesa MIii
Fleld Data Worksheet For Groundwater
Location ID TW4-31 Sampling Program Chloroform Monitoring
Field Sample ID ; TW4-31 06122024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/11/2024 9: 12
Sample Date & Time 6/12/2024 6:34 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 23
Purging Method 2Casings Previous Well Sampled TW4-14
Casing Volume (gal) 20 .29
Calculated Casing Volumes Purge Duration (min) 3.69
pH Buffer 7 .o ' 7.0 Well Depth (ft) 107.48
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromho:s) 1000 Depth to Water Before Purging (ft) 76.40
Conductivity Dissolved
DatefTime Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp(deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/11/2024 9:14 25.66 3620 7.04 15.90 290 19.0 27 .0
6/12/2024 6:34 3775 7 .12 14.80
6/12/2024 6:35 3779 7.11 14.82
Pumping Rate Calculations I volume of water purged (gals) 25.66 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min)
!Final Depth to Water (feet) 105.20 Number of casing Volumes
Volume, if well evacuated to dryness (gals)
!Name of Certified An~lyt_lcal Laboratory
AWSL
A nalytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C
Chloride ; y WATER 1 500-ml Poly u None
Nitrate/nitrite as t.J y WATER 1 250-mLHDPE u H2S04 (pH<2), 4 Deg C
Comments:
Arrived on site at 0907. Purge bega~ at 0912. Purged well for a total of 2 minutes and 20 seconds. Purged well dry. Water was murky. Purge ended at 0914. Left site at 0917 .
Arrived on site at 0629. Depth to water was 76.41 . Samples bailed and collected at 0634 . Left site at 0636.
Signature of Field Technician
._=3,., ,.,,..v ,--1-;~,✓L'~)
Before
After
11.00
2.33
1.26
25.66
Added?
y
N
y
Groundwater Discharge Permit
~ Groundwater Monltoling Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID lW4-32 Sampling_Program Chloroform Monitoring
Field Sample ID lW4-32_06112024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/10/2024 13:43
Sample Date & Time 6/11/2024 7:00 !sampler TH/DL
Purging Equipment Pump Weather Conditions Cloudy
Pump Type Grundfos External Ambient Temperature (C) 28
Purging Method 2Casings Previous Well Sampled lW4-32R
Casing Volume (gal) ! 37.18
Calculated Casing Volumes Purge Duration (min) 6.76
pH Buffer 7 .D 7.0 Well Depth (ft) 114.64
pH Buffer 4.0 I 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) q7.70
Conductivity Dissolved
Date/Time Gall:0ns Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/10/2024 13:47 44.00 5938 4.11 15.59 487 14.0 1.0
6/10/2024 13:48 55.00 5901 4.12 15.50 485 14.1 1.1
6/10/2024 13:49 I 66.00 5961 4.11 15.42 484 14.0 1.2 :
6/10/202413:50 : 77.00 5982 4.12 15.39 484 14.4 1.2
Pump ing Rate Calculations
[volume of water pu r_g ed (gals) 77.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 7.00
[ Fl.nal Depth to Water (feet) 89.73 Number of casing Volumes 2.00
Volume, if well evacuated to dryness () 0
Na me of Certified An al~cal Lab o/ratory
AWS L
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 HCL (pH<2), 4 Deg C y
Chloride : y WATER 1 500-mLPoly u None N
Nitrate/nitrite as f\j y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1339. Purge began at 1343. Purged well for a total of 7 minutes. Purge ended at 1350. Water was mostly clear. Left site at 1353.
Arrived on site at 0655. Depth to water was 57.86 . Samples bailed and collected at 0700. Left site at 0702.
Signature of Field Technician
~.,,CJ>_.,_.,_~-✓-~:4)
Groundwater Discharge Permit
e,;:; Groundwater Monitoring Quality Assurance Plan
'Fl..JIIEI...S
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID ' TW4-32R Sampling Program
Field Sample ID ' TW4-32R_06102024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time .
Sample Date & Time 6/10/2024 13:30 [sampler TH/DL
Purging Equipment : Weather Conditions
Pump Type External Ambient Temperature ()
Purging Method Previous Well Sampled
Casing Volume ()
Calculated Casing Volumes Pur:ge Duration ()
pH Buffer 7 .0 Well Depth (ft)
pH Buffer 4.0 Well Casing Diameter()
Specific Conductance () Depth to Water Before Purging (ft)
Conductivity Dlssolved
DatefTime Gall<>'.ns Purged (gal} (umhos/cm} pH (pH Units} Temp (deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/10/2024 13:29 : 133.00 19.9 8.24 25.30 276 0 17.2
Pumping Rate Calculations
[volume of water purged() Flow Rate (Q = S/60) ()
Time to evacuate 2 Casing Volumes ()
[Final Depth to Water (feet) Number of casing Volumes
Volume, if well evacuated to dryness O
Name of Certified Analytical L~oratory
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 HCl (pH<2), 4 Deg C y
Chloride I y WATER 1 500-mLPoly u None N
Nitrate/nitrite as ~1 y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
Signature of Field Technician
..:3,, ,on,•.~ -1-;~;/4:~\
-<_.1
Groundwater Discharge Pennlt
el~---· 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_06132024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time ' 6/12/2024 13:40
Sample Date & Time 6/13/2024 6:51 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (Cl 33
Purging Method ' 2 Casings Previous Well Sampled TW4-30
Casing Volume (gal) 4.13
Calculated Casing Volumes Purge Duration (min) 0.75
pH Buffer 7.0 1 7.0 Well Depth (ft) 86.23
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhm,) 1000 Depth to Water Before Purging (ft) 79.90
Conductivity Dissolved
DatefTime Gallpns Purged (gal) (umhos/cm) pH (pH Units) Temp(deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/12/2024 13:40 3.66 10.9 8.01 19.90 339 0 33.0
6/13/2024 6:51 4860 7.26 15.10 Before
6/13/2024 6:52 4859 7.25 15.14 After
Pumping Rate Calculations
[volume of water purged (gals) 3.66 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 0.33
[Final D_!)_i>_th to Water (feet) 84.19 Number of casing Volumes 0.88
Volume, if well evacuated to dryness ()
Name of Certified Analytical Laboratory
AWSL
Ana lytical Samples Information
' Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCl (pH<2), 4 Deg C y
Chloride y WATER 1 500-mLPoly u None N
Nitrate/nitrite as N y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1336. Purge begari at 1340. Purged well for a total of 20 seconds. Purged well dry. Purge ended at 1340. Water was clear. Left site at 1343.
Arrived on site at 0647. Depth to water was 81.28. Samples bailed and collected at 0651. Left site at 0653.
Signature of Field Technician
.:3<',VV-'<'~-.1-;,G-_ -«½;
Groundwater Discharge Permit
e~Y~S
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-34 Sampling Program Chloroform Monitoring
Field Sample ID TW4-34_06122024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/11/202412:10
Sample Date & Time I 6/12/2024 7:07 [sam pler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 30
Purging Method J 2 Casings Previous Well Sampled TW4-38
Casing Volume (gal) ' 11.26
Calculated Casing Volumes Purge Duration (min) 2.04
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) 78.49
Conductivity Dissolved
DatefTime Gal~ons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) BeforelAfter
6/11/202412:11 14.66 3851 6.63 16.90 304 7.1 14.4
6/12/2024 7:07 3726 7.24 15.13 Before
6/12/2024 7:08 3739 7.25 15.10 After
Pumping Rate Calculations
!volume of water purged (gals) 14.66 Flow Rate (Q = S/60) (gaVm in) 11.00
Time to evacuate 2 Casing Volumes (min) 1.33
!Final Depth to Water (feet) 93.46 Number of casing Volumes 1.30
Volume, if well evacuated to dryness {gals) 14.66
Name of Certified Analytical Labo~atory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroforn,1 y WATER 3 40mlVOA u HCl (pH<2), 4 Deg C y
Chloride y WATER 1 500-mL Poly u None N
Nitrate/nitrite as tJ y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
Arrived on site at 1206. Purge began at 1210. Purged well for a total of 1 minute and 20 seconds. Purged well dry. Water was clear. Purge ended at 1211. Left site at 1214.
Arrived on site at 0703. Depth to wa !er was 78.53. Samples bailed and collected at 0707. Left site at 0709 .
Signature of Field Technician
--=::).,, lr-'"-~ -/;,', -.('L"~
Groundwater Discharge Permit
e~v~
Groundwater Monttoring Quallly Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-35 Sampling Pro_g_ram Chloroform Monitoring_
Field Sample ID ' TW4-35_06122024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/11/202413:10
Sample Date & Time 6/12/2024 7:26 [sampler TH/DL
Purging_Equipment ' Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 31
Purging Method 2Casings Previous Well Sampled TW4-06
Casing Volume (gal) 6.72
Calculated Casing Volumes Purg~ Duration (min) 1.22
pH Buffer 7.0 7.0 Well Depth (ft) 86.50
pH Buffer 4.0 ' 4.0 Well Casing Diameter (in) 4
Specific Conductance (mlcromho's) 1000 Depth to Water Before Purging (ft) 76.20
Conductivity Dissolved
Datefflme Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
6/11/202413:11 5.5 4397 6.92 16.90 260 32.2
6/12/2024 7:26 4423 6.77 15.18
6/12/2024 7:27 4438 6.80 15.23
Pumping Rate Calculations
[volume of water purged (gals) 5.5 Flow Rate (Q = S/60 ) ('gal/min)
Time to evacuate 2 casing Volumes {min)
[Flnal Depth to Water (feet) 84.17 Number of casing Volumes
Volume, if well evacuated to dryness {gals)
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container
' Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type
voes-Chloroform y WATER 3 40mlVOA u HCL(pH<2),4DegC
Chloride y WATER 1 500-mLPoly u None
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C
Comments:
Arrived on site at 1306. Purge bega1_1 at 1310. Purged well for a total of 30 seconds. Purged well dry. Wa ter was mostly clear. Purge ended at 1310. Left site at 1314.
Arrived on site at 0722. Depth to water was 76.26. Samples bailed and collected at 0726. Left site at 0728.
Signature of Field Technician
~"""''-''~-.. "':~'~a-'~
44.60
Before
After
11.00
0.50
0.81
5.5
Preservative
Added?
y
N
y
Groundwater Discharge Permit
eF-Y--S
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID lW4-36 Sampllng Program Chloroform Monitoring_
Field Sample ID lW4-36 06122024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/11/2024 7:50
Sample Date & Time 6/12/2024 6:16 [samp ler TH/DL
Purging Equipment I Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 20
Purging Method 2Casings Previous Well Sampled TW4-13
Casing Volume (gal) 26.06
Calculated Casing Volumes Purge puration (min) 4.73
pH Buffer 7.0 7.0 Well Depth (ft) 99.41
pH Buffer 4.0 I 4.0 Well Casing Diameter (in) 4
Specific Conductance (mlcromhos) 1000 Depth to Water Before Purging (ft) 59.50
Conductivity Dlssolved
Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg CJ Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
6/11/2024 7:53 , 33.00 2588 6.90 15.50 221 19.9 3.8
6/12/2024 6:16 2475 6.89 16.01
6/12/2024 6:17 2481 6.91 15.99
Pump ing Rate Calculations
[volume of water purged (gals) 33.00 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes {min)
[Final Depth to Water (feet) 97.12 Number of casing Volumes
Volume, if well evacuated to dryness (gals)
Name of Certified Analytical Lat>o!'tory
AWSL
Anal}'t_lcal Samples Information
: Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C
Chloride y WATER 1 500-mLPoly u None
Nitrate/nitrite as N • y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C
Comments:
Arrived on site at 0745. Purge began 'at 0750. Purged well for a total of 3 minutes. Purged well dry. Water was murky. Purge ended at 0753. Left site at 0756.
Arrived on site at 0612. Depth to wat~r was 60.22. Samples bailed and collected at 0616. Left site at 0618.
Signature of Field Technician
~"_..,,..,__<--,--;f; .... '--_/4~
Before
After
11.00
3.00
1.26
33.00
Added?
y
N
y
Groundwater Discharge Permit
e~~ Groundwater Monitoring Quality Assurance Plan
White Mesa MIil
Field Data Worksheet For Groundwater
Location ID TW4-37 Sampling Program Chloroform Monitoring
Field Sample ID TW4-37 _05292024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 5/29/2024 10:55
Sample Date & Time 5/29/2024 10:55 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 23
Purging Method 2Casings Previous Well Sampled TW4-22
Casing Volume (gal) ' 25.43
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) 74.77
Conductivity
DatefTime Gallons Purged (umhoslcm) pH (pH Units) Temp(degC) Redox(mV) Turbidity (NTU) Dissolved Oxygen (%) Before/After
5/29/2024 10:55 3545 6.98 16.23 378 4.0 84.3
Pumpln9 Rate Calculatlons
[volume of water purged () Flow Rate (Q = S/60) (gal/min) 18.00
Time to evacuate 2 Casing Volumes () I Final Depth to Water (feet) 80.21 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Ana.lytical 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 HCl (pH<2), 4 Deg C y
Chloride y WATER 1 500-mLPoly u None N
Nitrate/nitrite as N • y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C V
Comments:
[ Arrived on site at 1050. Samples collected at 1055. Water was clear. Left site at 1057.
Signature of Field Technician
~ ..,..,._,___-r;,,,,-a~
Groundwater Discharge Permit
~F-,.¥-r-
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Fie.Id Data Worksheet For Groundwater
Location ID TW4-38 Sampling_ Program Chloroform Monitoring
Field Sample ID TW4-38_06122024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 6/11/202411:12
Sample Date & Time 6/12/2024 6:59 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 27
Purging Method 2Casings Previous Well Sampled TW4-23
Casing Volume (gal) 34.04
Calculated Casing Volumes Purge Duration (min) 6.19
pH Buffer 7.0 7.0 Well Depth (ft) 113.92
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (mlcromhos) 1000 Depth to Water Before Purging (ft) 61.78
' Conductivity
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Tem p (d eg C) Redox(mV) Turbidity (NTU) Dissolved Oxygen (%)
6/11/202411:16 44.00 1678 6.48 15.45 469 3.0 71.9
6/11/202411:17 55.00 1626 6.50 15.44 453 3.2 75.0
6/11/202411:18 66.00 1558 6.52 15.48 444 3.3 77.0
6/11/202411:19 77.00 1543 6.55 15.53 438 3.4 79.0
Pum ping_ Rate Calculations -
[volume of water purged (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) 105.66 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-Chlorofor,m y WATER 3 40mlVOA u HCl (pH<2), 4 Deg C y
Chloride . y WATER 1 500-mLPoly 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 1108. Purge begari at 1112. Purged well for a total of 7 minutes. Purge ended at 1119. Water was clear. Left site at 1121 .
Arrive d on site at 0655. De pth to water was 61.88. Samp_les bailed and collected at 0659. Left site at 0700.
Signature of Fleld Technician
-.:=),,, ,.,,,._ ~.-', -«~)
Before/After
Groundwater Discharge Pe,mit
eF-,,~ Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID 1W4-39 Sampling Program Chloroform Monitoring_
Field Sample ID 1W4-39 05292024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 5/29/202411:58
Sample Date & Time •. 5/29/2024 11:58 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type : Grundfos External Ambient Temperature (C) 24
Purging Method 2Casings Previous Well Sampled 1W4-37
Casing Volume (gal) 30.16
Calculated Casing Volumes Pu~ge 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) 74.55
: Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
5/29/202411:58 2610 6 .86 16.55 362 47.0 101.0
Pumping Rate Calculations
!volume of water purged () Flow Rate (Q = S/60) (gal/min) 18.00
Time to evacuate 2 Casing Volumes ()
I Final Depth to Water (feet) 113.30 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified An alytical Laboratory
AWSL
Analytical S amples lnformatio"
Sample Container Preservative
Type of Sample/Matysis 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 a;s N y WATER 1 250-mLHDPE u H2SO4 (pH<:2), 4 Deg C y
Comments: I Arrived on site at 1154. Sample~ collected at 1158. Water was a little murky. Left site at 1201 .
Signature of Field Technician
~ . /r .,, ----->--~~,,_,,__,__,-1--;,. ~U¼.c)
Groundwater Discharge Permit e~-= White Mesa Mill
Fleld Data Worksheet For Groundwater
Groundwater Monitoring Quality Assurance Plan
Location ID ' TW4-40 Sampling Program Chloroform Monitoring
Field Sample ID TW4-40 _05292024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time ' 5/29/2024 13: 15
Sample Date & Time 5/29/202413:15 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 28
Purging Method 2 Casings Previous Well Sampled TW4-04
Casing Volume (gal) 7.75
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 (micromtios) 1000 Depth to Water Before Purging (ft) 74.13
DatefTime GaJlons Purged (umhoslcm} pH (pH Units) Temp(deg C) Redox (mV) Turbidity (NTU} Oxygen (%) I Before/After
5/29/2024 13:15 4271 6.96 16.58 302 4.5 109.1
Pumping Rate Calculations
[volume of water purged () Flow Rate (Q = S/60) (gal/min) 18.00
Time to evacuate 2 Casing Volumes ()
[Final Depth to Water (feet) 82.07 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Analytical Samp le s Information:
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride I y WATER 1 500-mL Poly u None N
Nitrate/nitrite as N y WATER 1 250-mLHDPE u H2SO4 (pH<2). 4 Deg C y
Comments:
[ Arrived on site at 1311. Samples collected at 1315. Water was clear. Left site at 1317
Signature of Fleld Technician
..=)a, w~"L--/-/..·--«~
Groundwater Discharge Pennit
e£YFUELS
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_05292024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time 5/29/2024 12:55
Sample Date & Time 5/29/2024 12:55 !sampler TH/DL
Purging Equipment ' Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 27
Purging Method 2 Casings Previous Well Sampled TW4-01
Casing Volume (gal) 12.89
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) 88.97
' Conductivity Dissolved
DatefTlme Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
5/29/2024 12:55 2854 7.16 17.07 325 0.6 88.20
Pumping Rate Calculations
[volume of water purged O Flow Rate {Q = S/60) (gal/min) 6.0
Time to evacuate 2 Casing Volumes ()
[ Final Depth to Water (feet) 91.45 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Anal~lcal 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 HCl (pH<2), 4 Deg C y
Chloride y WATER 1 500-mLPoly u None N
Nitrate/nitrite as '.N y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments: I Arrived on site at 1252. Sample·s collected at 1255. Water was clear. Left site at 1257 .
Signature of Field Technician ;
~ .. ,v,_._,,_ -,';~✓z'~
Groundwater Discharye Permit
e~~y
Groundwater Monitoring Quality Assurance Plan
White Mesa MIii
Fielli Data Worksheet For Groundwater
Location ID TW4-42 Sampling Program Chloroform Monitoring
Field Sample ID ; TW4-42 06042024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time " 6/3/2024 12:40
Sample Date & Time 6/4/2024 12:25 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 28
Purging Method 2Casings Previous Well Sampled TW4-03
Casing Volume (gal) 9.10
Calculated Casing Volumes Purge Duration (min) 1.65
pH Buffer 7 .0 ! 7.0 Well Depth (ft) 86 .00
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (mi cromho s) 1000 Depth to Water Before Purging (ft) 72.05
Conductivity Dissolved
DatefTime Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp(deg C) Redox(mV) Turbidity (NTU) Oxygen(%} Before/After
6/3/2024 12:41 ' 11.00 4250 6.00 16.75 410 1.0 105.0
6/4/202412:25 4051 7.11 16.75
6/4/202412:26 4071 7.10 16.74
Pumping Rate Calculatlons
[volume of water purged (gals) 11.00 Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min)
[ Final Depth to Water (feet) 83.90 Number of casing Volumes
Volume, if well evacuated to dryness (gals)
Name of Certified An alyti cal Laboratory
AWSL
Analytical Samples Information
' Sample Container Preservative
Type of Sample/Ana [ysis Collected? Matrix Number Type sample Filtered? Type
VOCs-Chloroforru y WATER 3 40rnlVOA u HCl (pH<2), 4 Deg C
Chloride y WATER 1 500-mLPoly u None
Nitrate/nitrite as N y WATER 1 250-rnl HOPE u H2S04 (pH<2), 4 Deg C
Comments:
Arrived on site at 1237 . Purge begar1 at 124 0. Purged well for a total of 1 minute . Purged well dry . Purge ended at 1241. Water was clear. Left site at 1245 .
Arr ived on site at 1220. Depth to water wa s 72.18. Sampl es bailed and collected at 1225 . Left site at 1228.
Signature of Field Technician
~,,,,,,..,_~-1-;,i.4~
Before
After
11.00
1.00
1.20
11.00
Added?
y
N
y
Groundwater Discharge Pem,it
e£ Groundwater Monitoring Quality Assurance Plan
·~
White Mesa MIii
Field Data Worksheet For Groundwater
i
Location ID TW4-43 Sampling Program Chloroform Monitoring
Field Sample ID TW4-43_06122024 Sampllng Event 2024 Q2 Chloroform-2
Purge Date & Time 6/11/202410:10
Sample Date & Time 6/12/2024 6:41 [sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 24
Purging Method 2Casings Previous Well Sampled TW4-31
Casing Volume (gal) ' 14.37
Calculated Casing Volumes Purg~ Duration (min) 2.61
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) 73.49
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhoslcm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) BeforelAfter
6/11/202410:12
6/12/2024 6:41
6/12/2024 6:42 I
[vol ume of water purged (gals_) ,
[ Final Depth to Water (feet)
22.00
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
I
Type of Sample/Analysis
VOCs-Chloroforrn
Chloride
3640
3639
3645
22.00
92.77
Sample
Collected? Matrix
y WATER
y WATER
6.53 16.00 428 10.0 26.9
7.05 14.70
7.05 14.66
Pumping Rate Calculations
Flow Rate (Q = S/60) (gal/min)
Time to evacuate 2 Casing Volumes (min)
Number of casing Volumes
Volume, if well evacuated to dryness (gals)
Container Preservative
Number Type Sample Filtered? Type
3 40mlVOA u HCl (pH<2), 4 Deg C
1 500-mLPoly u None
Nitrate/nitrite as N y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C
Comments :
Arrived on site at 1005. Purge began at 1010. Purged well for a total of2 minutes. Purged well dry. Water was a little murky. Purge ended at 1012. Left site at 1015.
Arrived on site at 0637 . Depth to water was 73.58. Samples bailed and collected at 0641. Left site at 0643.
Signature of Field Technician
~.-,c,u~-";"··-«=4-J
Before
After
11.00
2.00
1.53
22.00
Added?
y
N
y
Groundwater Discharge Permit
eF--.--= Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID 1W4-60 Sampling Program Chloroform Monitoring_
Field Sample ID 1W4-60_05292024 Sampling_ Event 2024 Q2 Chloroform-2
Pur:ge Date & Time I 5/29/2024 13:59
Sample Date & Time 5/29/2024 14:00 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type i Grundfos External Ambient Temperature (C) 28
Purging Method ' 2Casings Previous Well Sampled 1W4-19
Casing Volume O '
Calculated Casing Volumes Pur',ge Duration ()
pH Buffer 7 .0 ' 7.0 Well Depth (ft)
pH Buffer 4.0 4.0 Well Casing Diameter()
Specific Conductance (mlcromhos) 1000 Depth to Water Before Purging (ft)
Conductivity Dissolved
DatefTime Gallons Purged (umhos/cm) pH (pH Units) Temp(deg C) Redox(mV) Turbidity (NTU) Oxygen(%) Before/After
5/29/2024 14:00 2.8 7.84 24.19 372 0 12.9
Pumping Rate Calculations
[volume of water purged () Flow Rate (Q = S/60) ()
Time to evacuate 2 Casing Volumes ()
[Final Depth to Water (feet) Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Anal}lt_ical Samples Information
I Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCl (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 H2SO4 (pH<2), 4 Deg C y
Comments:
I DI sample collected in the lab at 1400. Left site at 1403.
Signature of Field Technician ;
-=:')" ,,,,,,_L---1-;F: "i"L~
Groundwater Discharge Permit
e~Y-.-S
Groundwater Monitoring Quality Assurance Plan
White Mesa MIii
Field Data Worksheet For Groundwater
Location ID 1W4-65 Sampling Program
Field Sample ID I 1W4-65_06112024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time
Sample Date & Time 6/11/2024 7:00 [sampler TH/DL
Purging Equipment Weath~r Conditions
Pump Type ; External Ambient Temperature ()
Purging Method Previous Well Sampled
Casing Volume ()
Calculated Casing Volumes Pur:ge Duration ()
pH Buffer 7 .0 Well Depth (ft)
pH Buffer 4.0 : Well Casing Diameter()
Specific Conductance () ' Depth to Water Before Purging (ft)
DatefTime Gal lons Purged Conductivity_ pH Temp Redox Turbidity Dissolved Oxygen ! Before/After I
Pu mp ing Rate Calculations
!volume of water purged () Flow Rate (Q = S/60) ()
Time to evacuate 2 Casing Volumes () I Final Depth to Water (feet) Number of casing Volumes
Volume, if well evacuated to dryness()
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information .
; Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroforrri y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-mLPoly u None N
Nitrate/nitrite as I') y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments;
I Duplicate ofTW4-32
Signature of Field Technician
~,,,,N_-.c_-,£;;fi•4~
Groundwater Discharge Permit
e.,;:,_~~ Groundwater Monttoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-70 Sampling Pro_g_ram
Field Sample ID TW4-70 06132024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time
Sample Date & Time 6/13/2024 6:24 [sampler TH/DL
Purging Equipment ' Weather Conditions
Pump Type External Ambient Temperature ()
Purging Method l Previous Well Sampled
Casing Volume () :
Calculated Casing Volumes Purge Duration O
pH Buffer 7.0 Well Depth (ft)
pH Buffer 4.0 Well Casing Diameter()
Specific Conductance () ' Depth to Water Before Purging (ft)
Date!Time Gallons Purged Conductivity pH Temp Redox Turbidity OX)IQ8n I Before/After I
Pumping Rate Calculations
[volume of water purged() Flow Rate (Q = S/60) ()
Time to evacuate 2 Casing Volumes ()
!Finiil Depth to Water (feet) Number of casing Volumes
Volume, if well evacuated to dryness() I Name of Certified Analytical Laboratory
AWSL
Analytical Samples lnformat1011
Sample Container Preservative
TYpe of Sample/Ai.1alysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chlorofcirm y WATER 3 40mlVOA u HCl (pH<2), 4 Deg C y
Chloride i y WATER 1 500-mLPoly u None N
Nitrate/nitrite as N y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments: I Duplicate of TW4-05
Signature of Field Technician
----....,_,., _/ ,/. / ________,. ..... .,":...n..c. ... "'---., ... ¼~a
Groundwater Discharge Permit
eF-Groundwater Monitoring Quality Assurance Plan
Y.1"1t~S
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-75 Sampling Program
Field Sample ID : TW4-75 _06202024 Sampling Event 2024 Q2 Chloroform-2
Purge Date & Time
Sample Date & Time 6/20/2024 7:00 [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 (
Date/Time Gallons Purged Conductivity pH Temp Redox Turbidity Dissolved Oxygen l Before/After I
Pumping_ Rate Calculations -
jvolume of water purged () Flow Rate (Q = S/60) O
Time to evacuate 2 Casing Volumes ()
I Final Depth to Water (feet) Number of casing Volumes
Volume, if well evacuated to dryness ()
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Sample Preservative
Type of Sample/Analysis Collected? Matrix Number Type Filtered? Type Added?
VOCs-Chlorofo(m y WATER 3 40mlVOA u HCL (pH<2), 4 Deg C y
Chloride : y WATER 1 500-mLPoly u None N
Nitrate/nitrite as N y WATER 1 250-mLHDPE u H2SO4 (pH<2), 4 Deg C y
Comments:
[ Duplicate ofTW4-16
Signature of Field Technician
~ .. ,,.,,.~-,,<;"---t"c'~)
TabC
Weekly and Monthly Depth to Water Data
Date ~ / J (20.2.1..1
Time Well ' De pth *
1~/ Ci IMW-4 5<'-1 .15
l~iVS MW-26 ~3.'-17
JilX) TW4-19 74.23
1~31 TW4-4 g7_:;..k
IISI TWN-2 7g.3~
l'JD l TW4-22 ,O.<oS
IISTT TW4-24 t>9 .7'1
lt'15 TW4-25 ,?'!. g I
132,t; TW4-1 lib''4L
1~15 TW4-2 IOI.~<,
l~IO TW4-11 OJICfl.
I I Li() TW4-21 7~.77
}21)(.., TW4-37 ~ x-.1 \
l~ll TW4-39 7"?-..U
t~·-n TW4-40 71~'1 '1
tn l TW4-41 ~~ .G.7
Weekly Inspection Form
Name ,(Wlner h'oll;J ~
Comments
Flow 1-l.r)
Meter 3'15$'<'..IU,.3:2.
Flow I C,.0
Meter KC\h 0 40 .0
Flow IC,,.o
Meter 103'tb3q .i,
Flow 1/.,-.0
Meter 8l 40J~.f>
Flow ls.s;
Meter 2.~3719. J '"\
Flow IC..o
Meter ID5.2~1D .1
Flow lb-0
Meter ~'-Jli~SC:,~ .'J.:i...
Flow 14.()
Meter 1'12'-~gq ~
Flow l~.O
Meter y57.,13(, .;;l
Flow IL...0
Meter 51\')__4 \ .,
Flow H)•D
Meter \g77't LtU
Flow H,. /;l
Meter 3b7l·OS~.5.l,
Flow l~.O
Meter 2~n1 Y5 K . .J....
Flow l fl'.(;)
Meter · 133:l Li __ a,;:
Flow l~LO
Meter ~ ,3391;u,.'li
Flow '--0
Meter 4'1blf SI .4'1
Sys tem Operational (If no note
an v o roblems/corrective actions }
(Y.es __,,N o
(~No .
~
( 'Las ,>Jo
( Yes )No
(YP_" No
( res ) No
{~o
( Ye 'i No
(Yes )No
r Yes \No ..... ~
(Yes) No
(Yes )No -
( 'res JNo
{Yes )No
-
f '('Yes ;No
( Yes "N o
-, (_ YP.s ....N o
·f,. Yes;No
-...
r Y t=>_~ N o
(_ Tos)No
(~Yes bio
( Yes ~o·
(Y~ )'-J o
( Y-es ) No
--=-
<'Y~ ~
(. T t::~ l°NO
( _;le s N o
r Yes )J o
( Yes )No r ~~ "No
(~No
\.. Y~ 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 D«a G .twaJ., z;:;,.,:c lli,/1,;f!.,
1 ~ystem Operat1£a1 (If no note
Time Well Depth* Comments an v problems/corrective actions )
1() .:'..?3 MW-4 ~'.I 7~ Flow ~ l) .. No
Meter ~ <>,,. ~ 1 sc:r "'n .. No
0"11 ~ MW-26 7< 1,/;;}._ Flow /~.~ b No
Meter Si!cr ,7 ~ ~ '7 • No
i1'30 TW4-19 7--t '!:fl Flow I~ /) ~ No
Meter , n J.-4 q 1> q n '3 ~ ... No
JI)~ 0 TW4-4 ~<:'2:J Flow 1 (,,. Ii -~ No
Meter I;( r.. LI ~ t. t:. £. ~ No
tHs3t TWN-2 /4 D 9."I Flow J 6.. tJ '\la No
Meter oi." i./',l 'I 4', r n ._ No
O<il:s~ TW4-22 C,,"f,17 Flow 1.r:..r .. No
Meter I t'J t;" ~ n .::l ~ I'... ,.. No
()~~!, TW4-24 71 n« Flow • ,,& -n -No
-~ Meter :2 '-I~ ~ ~ "l "' ·:u .. -... No
0~ 2-'1 TW4-25 r,, q .!l I Flow If;_ I 'l!IN No
Meter , q ◄ '"I 7 .:, ~ Ji 1 .... No
Jo()q TW4-1 1nJ:5" 13 Flow I~./..... ... No
Meter ~< ~ ~, q < 1!llg No
oq'"l/4 TW4-2 11 (} <~ Flow !ef,.0 ... No
Meter 1;7~ n ~er.ct-,,_ No
t,q:2~ TW4-11 <ff;\.~\ Flow J e;-_ 4 ... No
Meter 1 ~ 7 R 1 ~?. 11115 No
0~1q TW4-21 , (. '-I l'J Flow I G. () Ta No
Meter '!'a ,. -, '1 1 1 , ~ t. ~ No
oqoo TW4-37 t.S, ~S Flow ,~ (} ~ No
Meter :1 c-o ~ 7 l) ~. q Ia 1'Jo
o.,~ 7 TW4-39 7 "'· 11~ Flow ·JsLn ... No
Meter J ~ , l'1 ~ . ~ n '-~ No
/Os~ TW4-40 7-2. 7:J. Flow
'"' 1"J
~ ~No
Meter~l:I ~, at •. /.-.,, 111aNo
1/tJ~ ::i TW4-41 ~,;t 1./ I',, Flow /'. (i ~ No ''
Meter a.,·., '"T -,. --i _.q r. Q. ~ No
Operational Prob~Please list well number):
Corrective Action(s) Taken (Please list well number): _______________ _
* Depth is measured to the nearest 0.01 feet.
Weekly Inspection Form
Name M:,a k ra;:-,;;;;:aee r¼t,i:;l~,-
vstem O perational ~~o note
Time Well De pth* Comments an v oroblems/corrective actions )
I I .c;'l? MW-4 ~'.2.., 1< Flow
4/-"
.. No
Meter 3q _7 2 1 oq·.'-t"i ... No
O'f>t;":J. MW-26 7~ '3<.. Flow IS.(',. .. No
Meter ~.::i<l 5"'.;, 1 , 7 -.s No
J :l~'I TW4-19 qr;-,· '.,. Flow /~, tJ ~ No
Meter I o s-~ If q ~ ~ ~ ,.. No
JJ.O II TW4-4 ~~O"I Flow 1/J, ~ ~ No
Meter 9!. ~ "I ~ 1 ;J. . l 11M. No
OSI'"( TWN-2 r-~ Jl,C:--Flow /G, .:::J '115 _No ,
Meter 11;.1 .. n e,, cg ,, 7 'JIM No
0~'"30 TW4-22 ....--... ~. 11 Flow I~ n ~ No
Meter i /)~A,-~ .:>.. 7-sr ~ No
a ~.,_.,,_ TW4-24 "10.tt Flow //..., I? ... No
Meter~ '115' 7~ "'3~ t:.~-... No
09.ll.G, TW4-25 ~q.~/ Flow l ~ t. 1IE No
Meter , q --i -.:i f. ~ ~ "'\ -:i.. ~ No
11<,;-TW4-1 q c_;l, I ~~/ Flow 11 ~ ]la No
Meter ""' <" 9, 1-1 t::1 ::2 2 ..,_ No
I! s..t 'i°' TW4-2 q q "1,I Flow _J 1~ D .... No
Meter i 71 ~ 3\ , ,_ No
JI '?I~ TW4-11 ~oi .. ~'1 Flow 1 I. n .. No
Meter 11?~'-1 ~ ~ o ~ No
075'.,g' TW4-21 7<.,-so Flow fl',._~ "1!111 No
Meter 3 t. ~ '3 ~ 7 q. ~ ::J.. ~ No
O?i 3 (. TW4-37 eag ~o Flow 1$,I":> ... No
Meter 2t:'n'illi. n .taa, No
0~"(4 TW4-39 7'-1, t.;~ Flow I«• 1' ,. No
Meter I g I {.~. I l 'k No
J 11"1 TW4-40 ""f-.J. oi.< Flow I ft. (J .. No
Meter J 1 "1 C: I; n ~q ... No
l 1.. /'JO TW4-41 ~~ rt'l Flow ,_ 0 'Wis No
Meter ""'7 $( ::i ,cg-:i . q r,. .... 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 y-n.-2'f Name 72rw & o/man/ z;;::;. <1 u::: /44 (/4~
System Operational (If no note
Ti me Well De oth * Comments an v problems/corrective actions )
1/Jl!:f /,.., MW-4 '1:2 ,.., Flow '1, () 1es No
Meter '2.. q 7 q ru. 17 <;c' ~ .... No
n~c::7 MW-26 -r c,,, ~I Flow J (;. 'l .... No
Meter q o , ::J 9,. , ~ ,_ No
11'1~ TW4-19 7/?,.t;""'7 Flow , /:_ ,I") ~ No
/ Meter , n /: 4-;{' q '1 u, -.. No
oq,rn TW4-4 «~ 0.., Flow Jt.,n .... No
Meter e ,_ ~ LJ i,J 'i , Y 1!M, No
fl7'{J:; TWN-2 ~-;L,~ Flow //_ /) ... No
Meter~~ 7 r r-.. ~ ~,1/ .,_ No
(j 13 '{ () TW4-22 ' I'.'.: q _q,q Flow ,,-,, n .. No
Meter , n c: -, --i,. , ~ r_ ... No
og15" TW4-24 rC: I -:z._ Flow I /ft '.'.'.I ~ No
Meter 1 '-I r _ , 7 't.. -, 1 7 ,_ No
07::1.1 TW4-25 I.~ \1 Flow ,~ n ... No
Meter , q e:. , , r.. t '-I~ ,._ No
oql./n TW4-1 JO~ /t') Flow I~ ,<2 .. No
Meter ~c:r.tn sn -.:,. 1!lls No
nqn9, TW4-2 ~•t.~l Flow //.. L) ... No
Meter z; 7-?,, 1 • ., t~ Q ,._ No
t) q 0.3 TW4-11 ~Q '-'It;"' Flow , r. I) • No
Meter ,c;re11 -:i. q , 7 ~ No
fJ7JJ, TW4-21 .., " .2~ Flow I I • .:I .. No
Meter ~ {. 5r q ~ I I /) I .. No
09.i,{~ TW4-37 ln9. l(~ Flow ,~ 0 1-No
Meter '1 ,:' II .r;-t:f I ' I 'WM 1'Jo
In~ 5'/ TW4-39 ....,,, /_ (. Flow 14. n ..... No
·' Meter,.,,,.,,,._,~ ""'~ .... No
/J'f ~R TW4-40 --u /./fl. Flow IQ 11 -.s. No
Meter J -1, .., ~ o , , t1 c:-.... No
l}t/ '-I~ TW4-41 '1-<? ~~ Flow /. () ,__ No
Meter w 'T q l'J"'.,.,. rl: '918 No
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number): _______________ _
.. Depth is measured to the nearest 0.01 feet.
Date
Weekly Inspection Form ;()
Name :;;;:?,,,,. ~""1. <z;;:;;«: ,i,,I {!/fi-~ ~y~tem Ope:ati:a~ (If no note
Time Well Depth* Comments anv problems/corrective actions )
oqti.1 MW-4 <;2."1, ... , {_ Flow
"· t)
.. No
Meter 3 tv -& <.. o o q , o 5" • No
no.,., ...,. MW-26 7,-Ji J,,f '1 Flow J /.., () --No
Meter <rn 7 q ... .J 4, C\ .. No
I /J ":I,/_ TW4-19 i'l. 77. Flow JI. 0 • No
Meter i o ; ~ it1 ~ , fl ~ 1!!IB No
09~\ TW4-4 s-t'-J .'"l,1 Flow JC, 0 .... No
Meter s;r r.~'8I '.:l o .. No
()75'q TWN-2 ,;i;.(", ~ J Flow II' •. /') lJs No
Meter .a. ,e, <1. ~ q411 /A ::i 1111111-No
O'ilc=t TW4-22 ~~ '-'14 Flow JI'. 0 .. No
Meter /o~qn ~,, o ~ No
9~1'-f TW4-24 t:.,q /'I:/ Flow I (. t1 ... No
Meter -:2_ 61 t. c;-9, ~ -','", 7. I .. No
(77~..!l TW4-25 ,:: Q #-f., Flow ,~ 6. 1iD No
Meter /Qc;'q~qc;-, ".l~ -No
nq '1n TW4-1 q~. /,,,0 Flow f '.3. ~(a .. No
Meter '-/ ,;'q SIS' O .. 2 -No
n~n-a TW4-2 ~"1-~'l. Flow u:. £) ... No
Meter ~7 """' 3 7 ., ... No
.-,qan TW4-11 ~~-~(} Flow It'.. t'J .... No
Meter i ~ (l -:J. 'ii{ 11n ... No
n-tc../t:;" TW4-21 --rc:~-r Flow / t:. t'} ... No
Meter '3 t..q ~ ~11 <. 1 t .... No
nrx ,:c-,. TW4-37 .., "..1 ( .. I.{ Flow ,.,n .!!!IL No
Meter .1~1~qt:) -:1 .7 ... No
n9."l,.O! TW4-39 ~"1' ':2 Flow 1-.J 0 ... No
Meter 2 '3 o , ..,. , q " .. No
oq"f5' TW4-40 ....,~ J..J<" Flow I 'ii 0 'lies No
Meter , ,,. <" 1t'l 1 \ ~ t.. ... No
oq;2..Gi TW4-41 <Aq Q.,7 Flow /,. I) '.1lls No
Meter "-f .,qc=,oq lo3 ,,_ No
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number):
* Depth is measured to the nearest 0.01 feet.
(
Monthly Depth Check Form
Date >1-71---2i • , Name -.;nnu 1-loll 1
~
Time Well De~th* Time Well De~th*
a!J.l# MW-4 $j~~£,:i 135: :J TWN-1 :tl1lCt
.a~aA TW4-1 9s'., G,Q a:r~~ TWN-2 fi~ ' -:Z. £
Q 'l<S213'.' TW4-2 C\-'7....3 J1 r3S:'1 TWN-3 ~u:1, <o s:: ..
l~.63 TW4-3 (a(..tlj iJ!a TWN-4 ~~, a1i
Qg•:lal TW4-4 91e3"tz, 13 ~ e:;--TWN-7 -, 9: • I 1.1
l312i TW4-5 1 :3,Jk; 13~~ TWN-18 c-,.03
1~1 ta TW4-6 Zf2.::tl 1:3~~ MW-27 £~.ia
11119 TW4-7 s:1~s1 1~39 MW-30 1.c;. lt
c~ :a..i TW4-8 8~2.t l2:3~ MW-31 ~9 I S::2.
13 2"4 TW4-9 JI , 5: I
13:3a TW4-10 -:ta.11
asoa TW4-11 Sl .. 5''t>
r.H!~ TW4-12 r;1. 03
1303 TW4-13 Jf"1, ~ t. j,:Z.i:;""R TW4-29 1~·. 1s-
l:3QQ TW4-14 11.,;&3 (~§"'a. TW4-30 ~ 1~
'2!i50:Z MW-26 "1.~~1/ L~~":£ TW4-31 1C.. {l_ a.
133~ TW4-16 :I~ L t'.t l l3Q1 TW4-32 5,.1.1 A3
£33~ MW-32 $3. ::!IS' l~~S TW4-33 l'J., 1.l
I 3t 5:q TW4-18 "1.!d. I ~ l l~S.1 TW4-34 :zs. a.I
ld•i~-TW4-19 :z;Z..i.:I:3 I l S::S::: TW4-35 1$'.' ~ Q
az~< TW4-21 Z£: =3Z t3a I TW4-36 2.9..0l
'2~1~ TW4-22 ~~.H~ '2~3:3 TW4-37 ::r ~r.~¥,.
131 '-! TW4-23 :r1 .. a:3 1~6~ TW4-38 ~I 13a
C~(':( TW4-24-~'1,(1 Ogg~ TW4-39 'Z::~i/'2. >
a:z<~ TW4-25 ~,~~ '1~~~ TW4-40 ~,Jot~
Ml.a TW4-26 l<-~'1 ,O~~~ TW4-41 g"SJ, j5 :z:
l2. t,d) TW4-27 "19,3Q l~c-{(a TW4-42 "1.l, i£"
/30Ce TW4-28 '::19, '.8 3 / a5:3 TW4-43 1'3,;tQ
Comments: (Please note the well number for any comments)
* Depth is measured to the nearest 0.01 feet
Weekly Inspection Form
Date r:,,-a:r Name.__Ch:4 ~-"'4y :z;;:,,,..c ~~
System OperationaDt :O:te
Time Well De pth* -Comments anv oroblems/corrective actions )
0 ,:;r ..-~ MW-4 ,Q-2 ~f'\ Flow .o,(_0 -No -
Meter ~ qC\ '3 /} 7 -::2 • oJ./ • No '
ng..:i.~ MW-26 7~-4.,/-? Flow • /✓-.~ .. No
Meter c:i o"" 7 i:: /4. LI '91s No
//)~~ TW4-19 --,3 /90 Flow I ,:;', C. .. No
Meter tn cz 11 ii"~. ~ .., -.. No
nq11 TW4-4 S!~ r.< Flow I I. /'J '.IIIE No
Meter •u'.. 1. -z.. s o ~ ... No
/J 71/~ TWN-2 q~ 71 Flow /6.0 ... No
Meter ~ 1. q ~ n ...., -., ~ --No
()<z:(J < TW4-22 7 / / :i Flow ,,,_ ,,, • No
Meter I o 1'1 n -, ::> .a.ct . ~ .,.. No
/') .., "'° TW4-24 (,, cg, 2 -:i Flow I J'. (J ~ No
Meter :i._.,,,_q~, ~ q 1 ... No
I"} .., ,., / TW4-25 (,q , I~ Flow ,~ "{ ...,_ No
Meter I c11 "· 7 ~ct t-. r Q )las No
n._q-I 0 TW4-1 I OC: 1< Flow I '2 g as No
Meter '"I 1. n I t.-1 () • ~ --No
"~,;'ll TW4-2 qq ,7-:1, Flow //; 0 .... No
Meter z; 7 <4<<::" ~ -No
09.-./~ TW4-11 qi,,7C Flow / ✓-/1 !!i!lll No
Meter , q 1 , , /J 7 ~ No
/7"7'1/t TW4-21 71-f,>I,,,,., Flow I I'.. l"J ii. No
Meter ?,7,?11:. ~Jf'J ~q ~ No
11~,i; TW4-37 7 '-1 '-/ q Flow J q 0 ~ No
ME}te r ') c , ~ n , ".) . n fta No
{J~,, (l TW4-39 "'1"1', ~<A Flow ,. 0 .. No
Meter -i ~.., .., .;i. r ~ '!Iii& No
Oct 1r;-TW4-40 -, '1. '"1.;! Flow .~ fl .. No
Meter , '1, ,;-1-f /J /'J -,,, r. -::i Ste No
t}qJ(,. TW4-41 ~q . ,._~ Fl ow /. 0 'Ills& No
Meter .., ~ n~ t'.. l::". ~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
Time
Name 0-ra ~;t, :&::, ,¼ff,z
=stem O~ration~no note
De pth* Comments an y proble ms/co rrective actions ) Well
l)Gtt.-1~ MW-4 Q'( j,;( Flow '-1, IJ ... No
Meter '-/OOOOlcg 13 • No .
... oq.2.5"' MW-26 ~~~~ Flow 1<. 'if • No
Meter c:i o ~ Li L g 11 ,_ No
IJ'.l -::1..~ TW4-19 7-:J ,.:2::2. Flow f/_ n -No
Meter ;o~q.J 1~.5-'? ... No
oqc;q TW4-4 83 3~ Flow JC. 0 'Ilk No
Meter 11~~ 7 "i Y ~ ... No ,
O'S I l TWN-2 ca S"'. ,._ '! Flow J~,O .... No
Meter ~-7 o 4ct ". "7 ,_ No
O'JO(, TW4-22 f.Sl "1~ Flow ff. I) !Ila No
Meter , n l. '.:l 'Io 7, 6' ... No
og&"q TW4-24 l',,,.q !l '{ Flow fl,., /') '1D No
Meter ~,,, 7 'ft g 9'. 7 ,j_ ~ No
0802 TW4-25 (o~.,~ Flow /r.;;'. ~ ... No
Meter-, q -, '>-£,. 1 q 1.(,, .._ No
()Q1-IR TW4-1 I Ot;' ·rt) Flow / .:.:2 . 'S? .,._ No
Meter "i r. o '1 ,r, , "ii ... No
()Q~~ TW4-2 111.qc,;-Flow I I,,, () ... No
,:, Meter ~'1~0'-l'I 7 .. No
l oq-,.-:i. TW4-11 trct ..,,, Flow }/., 0 ~ No
Meter , q ~ q ~ t:.. ~ .. No
075''3 TW4-21 7<'. ~/ Flow /~ .a 1!IIS No
Meter 3 7a7qo~.q-r ~ No
nq 1 I") TW4-37 ~i. r.<" Flow /fl ./J 111118 No
Meter~<~ 17q~.,r. 1!lm No
DOJ'Jn TW4-39 7¥ :1~ Flow ,.c,o .... No
Meter -:J.7 <¥~., 1 .. No
1 n, n TW4-40 ""1~-~7 Flow I Cil D .... No
Meter , , ~ 7 o t. s . ~ ~ .. No
nQc;~ TW4-41 4.Q DI Flow t:...O .... No
Meter "IR J 7..., g 'i :1 lies No
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number):
"Depth is measured to the nearest 0.01 feet.
Monthly Depth Check Form
Date ~---rz -:1t':( Name:z=?,.,..,a &-/;,;aza'J £a:< 1 ({o/
Time Well Depth* Time Well Depth*
l'i3.0. MW-4 <g ~ /1. :1.._ a'l.ll TWN-1 71,rr
i..LJ a 1. TW4-1 LQ~,-'-IL 0~1-g TWN-2 SLZc'o
J'·l~I TW4-2 U.29., -d,J) O~li TWN-3 J.(QC
as:a3 TW4-3 G~~32 !!2 C? 'fi: TWN-4 la t:f,_{;£
i~2.I TW4-4 i!!(l.!18A a12ii TWN-7 +'r·U>
a. 'J;.!:I.. {a TW4-5 ZJ .:z..:2 Cl~¼ TWN-18 (p"3 13,(/
L':f..LS TW4-6 sa.~_s-Q2QQ MW-27 :S:"S,38
I J,,/ "3.3 TW4-7 82..1.ctO f!J.7~!;;' MW-30 7~3.1-{
t!:i,·:Jr TW4-8 ~5':. "7:(1_ o:za..~ MW-31 c;,9,7;;;-
asao TW4-9 2l, Zt
fJ.1 :J. A. TW4-10 zt~aa
I !::J ~ i;"" TW4-11 SG, ':Ue '
l~:13 TW4-12 5:7. lQ
1~3'.:l TW4-13 ~1L l S-j:3~ TW4-29 79.9.CJ:
f 331 TW4-14 Z1~'--i5. t3Q~ TW4-30 7f';.t-K
l':J.l1··l MW-26 Z~1 ~~ l~5'"0 TW4-31 7/tJ. 2:l,
a. 'Z.'3."1 TW4-16 2~~2.a l ~5': 1 TW4-32 S:Z.57
073:3 MW-32 ss.<~ ia.3z TW4-33 7 Cf:; BS
Q9_Q£, TW4-18 :z~.15~ t23....~ TW4-34 7B,3$S'
IQ 0. ;[_' TW4-19 16,11. £:3QS TW4-35 'ZtP, II
Q~$::f. TW4-21 .,_,.2. ~HI. u:J< TW4-36 5~. a.,J
~'.irlfi TW4-22 ~~E l3 0:f! ,~ TW4-37 7J./,5]
l'-IQ~ TW4-23 77, 3/(p 0907 TW4-38 '4/ I !TS .
as:~1 TW4-24 '2~,1~ CHHl TW4-39 7~/,3£
'1~33 TW4-25 ~1i9~ l ~ l l TW4-40 7w,.i.l
l!::H2-;L TW4-26 ::zs-;~r ltta...,i TW4-41 73,a. $9
l J. 'i.~ TW4-27 1'1.1--/2-t :J L 7 TW4-42 7;2.,-3 I
131-1<;; TW4-28 l{o. 1 o t 304 TW4-43 73,'i'i
Comments: (Please note the well number for any comments)
* Depth is measured to the nearest 0.01 feet
Weekly Inspection Form
Date
Time Well De oth* -
0 9 {)'1 MW-4 ~t;"; ~:1.
0 S'? '-1 1 MW-26 7-.,_79,
IOI.{{. TW4-19 .., ;} Ly~
i)q1'i< TW4-4 ~cs ~"2i
075'"0 TWN-2 ;:5 ~;-; I 7.
o e"J.-:1, TW4-22 ,;,1iL (_ q
/)q; ()« TW4-24 t:,q ~ '-f
l/11 J,J," I TW4-25 ·7 :J. .-(c /7
·~c:1,~ TW4-1 1tvf!l l
I
lnS:SF-111! TW4-2 q~ q .:;--
09.<J TW4-11 q..., 'q ~
rr1~< TW4-21 7~CI /
()'1. ~ 'A. TW4-37 t.,.q , [,~
![)'?, ~ 1 TW4-39 7.::; ;.,/~
n q :i.~ TW4-40 ,--; '~~
na-:J "1. TW4-41 0~ ,<
Name {2:ea~,
Comments
Flow J{ 0
Meter i/lJ(} ~Cf(Ji/ 'lfl
Flow 14>~
Meter q o,;;: 1 2.r,. r
Flow ' r:;, (~
Meter I o 9 -r ?i C 7, '11..
Flow J{;,tJ
Meter S? l I -;J I q ()
Flow /~--I
Meter-:;_,, .:;-,;z:i 7,
Flow / t? 17
Meter ; o u J,f ; n r, . t,
Flow //, (}
Meter --, '-I , ~ :1 -x <=?. 1:J
Flow Ir;'. <7.
Meter 1 01 ~ ~ ~ ,:;;--s:?, .,::r a
Flow l:J L{
Meter A/i ~ 1 ~ , i~ 2 .
Flow ir,,, n
Meter ~,~~4~ ~
Flow I(,, . 0
Meter 1 q "\ q n 1. ~
Flow /C.. 0
Meter~ 713q'-<'-t ~9
Flow /4a0
Meter ".l r; :1c;17 i;-,,
Flow IQ,. 17
Meter :.2 q 1 ,;-1 ~ t
Flow ,~ t1 \
Meter 1 ~i;-q~<>IJ .51 ~
Flow I,, tJ
Meter l-f 53 ,;2, i:;--~ ~ t. .-:J
Operational Problems (Please list well number):
System Operational (If no note
an v problems/corrective actions ) .... No
~ No -No .._ No .. No
'IE No ._, No
"ills No ,_ No ... No
~ No
"6 No
'l!s No
-.s No
~ No
~ No
Wis No .. No
'Willi No
..¥. No
lliEs. No
Tm-No
Yi!s.. No
&a No .. No ._ No
"\1eS No
"Illa No ,_ No ... No
\l!!s No ,_ No
Corrective Action(s) Taken (Please list well number): -----------------
~ Depth is measured to the nearest 0.01 feet.
Weekly Inspection Form
Date 5" -as-.t 1 Name D«,. k-< by mW( r.;;;;,:= fl,,//,&
S ~stem O _eratiof}____!f no note
Time Well De pth* Comments anv Problems/corrective actions ) -oqc;n MW-4 ~<1.i:--Flow LI, t1 ~ No
Meter "' 11 1 ,., q , .. " '.l 'l 1ia No
0~33 MW-26 ,x;-:<;?(,, Flow I h, I? "1116 No
Meter q I o I n ~ -r .,__ No
/-:l (} q TW4-19 ~j ii') Flow ; ,A n 'Ille. No
Meter I r o -r O ~ q, 1 ~ ~ No
1nnt:1 TW4-4 ,;_~ I {4 Flow Ji,,,/) .. No
Meter ,u. 11 ~o t;' -No
0.,,".J.:l TWN-2 Sf~,ql Flow I/ .... ~ .. No
Meter ~ 7 ..:i. -r , 1 . ...,_ ,. -No
l"JCfJ, TW4-22 ..,, 1q Flow II .. f) ... No
Meter , n 1. r. n 1. c.. 1 1111s No
nq10 TW4-24 1,.,q '-ID Flow , r. /J --No
Meter 1 11 "t? 1 q 7 7. ~ 1 ,_ No
O~l, TW4-25 -rn 1-r Flow J ,;_ ~ "91a No
Meter '<f'I-:,. J ~A~r I :J -.. No
nq 5' Co TW4-1 I rl ,;-, (., :J. Flow J ;J. 9. .. No
Meter 1-U, ~n q-,., q .. No
(JCp.p:;"' TW4-2 11(.7:;1. Flow JI{, 0 .. No
Meter ,;-77-, n ~ st ,.. No
oq "2iq TW4-11 ~q I l Flow 11h n 111115 No
Meter , q ~, ",; ."17 -No
osoq TW4-21 "'f'c._q.i;-Flow It:.· ~
,._ No
Meter ~-, :J , o c;',. , ~ .... No
nQ ~ '1 TW4-37 £.Cf{',,,z;-Flow I~ O .._. No
Meter ~ c-.2 s:i q ,:i -a. , '1!!111111 No
nq "1 _tx TW4-39 ~~ c;~ Flow l'wl l'J '1115 No
Meter ~ .1 '.l ~q . q ~ ... No
10 I(. TW4-40 ,~ ~~ Flow I st n 1111 No
Meter , :H .. ~ :2.. 1 n -, '"1 ~ No
ID f) 'J.. TW4-41 O:Q 14 Flow ~ 0 .... No
Meter .. , g ~ to f,,, z:-: Y--S< W:s No
Operational Problems (Please list well number}:·
Corrective Action(s) Taken (Please list well number): ________________ _
.. Depth is measured to the nearest 0.01 feet.
Date
Weekly Inspection Form
Nam e::z:)......, tsd,,,,ma ~'TC'.~(,{~
/ System Operatio nlt (I f no note
Time Well De oth* Comments an v oroblems/corrective actions )
oq~n MW-4 ~, 'i:J. Flow '(, () ,_ No
Meter "-In ~ rHrn '-/ :J 2 • No
()q().R MW-26 , ~ 7"-7 Flow I l~ n .. No
Meter q 1 1 t. q 1_ q --No
JI '3 ,_,, TW4-19 7::1. L~ Flow 11. n ... No
Meter 1 1 , 4 , r. '"I, ..., n 1111; No
oq,:;, TW4-4 <,( :J I l. q Flow I I •. (} .._ No
' Meter c;;: {, <;? I LI O I ... No
0 ~ 'l,2 TWN-2 ~ I /(,. Flow It. r, as No
Meter ~ ~-; r~ ~ ~ n Q. ii!&-No
17 ~ C: ! TW4-22 (,, Q, '1~ Flow I I,. (l ~ No
Meter , n 1. '71-1 Gt.,. o --No
n'?.Y:2 TW4-24 "'11 1~ Flow ,~ n "Wig No
Meter -:1 "1;. ,A'4 r.<. 1 c. .. No
n~.:.12 TW4-25 ,~~< Flow IS-:'~. ~No
Meter ~ n o n ~ ~ ~ '-I 4 .. No
oq-.~ TW4-1 J 1'Jz;° ti:::-Flow ·, ".1 ~ ... No
Meter w 6 !J .::-qn S? lils No
fl~ '.l ~ TW4-2 qr,, ~~ Flow Ir.. n -.a No
Meter r 7~~ ~ :z c. ... No
CJQ I< TW4-11 <;IQ c:. '-i Flow J /,. I) ... No
Meter , q c: t;ct ~-:\ 'as No
na.. l II') TW4-21 ·n. "I:O Flow l~.O ... No
Meter 3 7 :, i. 3 ~ ::J r. o 1lilii: No
(J~ t::;~ TW4-37 ~7,.3S-Flow J"il n ... No
Meter 'l ~ ~ , o o ·4 ~ l!W5 No
nq n !I TW4-39 7<.'2a Flow ,~ /J .... No
Meter-,. i.1 r ..2.r.. q .:2 1IN-No
n q ,;-~ TW4-40 '1:l ~~ Flow 1.;t 0 ... No
Meter 1 ~ t,, i;-,,; 9. C:~ ... No
{)Q UC: TW4-41 ~q 1/) Flow I,. 0 ... No
Meter c.t~'-l"-;, nS? ~ 1 l!lls-. 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
Time Well De pth* Comments anv problems/corrective actions )
0~?,'7, MW-4 ~l..ir. Flow 4n 1111111 No
Meter '-In -1-,-,q ~ 1:i 1=s No ' .
OQI~ MW-26 "1q ~[J Flow 1< ~ .. No
Meter Q , , , q 7, ~ 1filg No
/~OR TW4-19 7:J {.,46" Flow I I'__ n -No
Meter 111.::J :11., ~ '-1~· is=. No
i>su;•~ TW4-4 'i?'-/ 1~ Flow I l, /) l!a No
Meter ~ 1_ ~ ;;-, n 3 TaE No
o ,n.., TWN-2 ,gq i'1 Flow I IA () '&I No
Meter ~ -r '-I 7 q 3 t.1./ ._ No
l"I "1 ~&;-TW4-22 I.~ ~s.' Flow I(. () .... No
Meter , o t. q , q s-t 7 '1IE No
n-r,;n TW4-24 7 / f (J Flow I /_ fl .. No
Meter 2 41'1/J c;-/...1 ~ ~ .. No
n{.~~ TW4-25 I..~ -:2) Flow I &-f t~ -No
Meter 1 n n 51 tft 1 :2 -r .., ~ No
Ofl~q TW4-1 qq_ qr;' Flow J 2. {. • No
Meter i.-11.-,,, ,_..,_ a 111111 No
(H'l ~£. TW4-2 1/D l.'!. Flow ,1, {) ..,.. No
Meter ~ 7 q '-I 1 t •. '-I "Wis No
n~,q TW4-11 q'1 Q7 Flow I la {) '816 No
Meter , , q t:"R n r :2 las No
n t;. "f'f< TW4-21 71'. 19 'ii Flow I{.. IJ -No
Meter 3 7 "3 .2 -; .:z q·, ~ 5"' .._ No
OS0.3 TW4-37 1~1, S'c; Flow ,,.~ ,._ No
Meter :2. c;-~ c;" .l ,; I, .l ~ No
f)t;I. () t;l TW4-39 1~.47 Flow 1•·n ~ No
Meter "3 , .. ~ ~ n -, .., '9.118 No
OQOA TW4-40 '9.4 ,; Ffow_ I~ fJ ~ No
Meter t ~ t'..~ 1 <S<?,q n 31B No
o~.;-1 TW4-41 eq r.o, Flow " ,<} -.s-No
Meter L4 ~ .:;--:;z a.~ .,-r 1lllr, No
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number): ----------------
* Depth !s measured to the nearest 0.01 feet.
Weekly Inspection Form
Date Name l1r w V /t roa ";• iaeorc 6/,a:"t
System O peration I /If no not
Time Well Comments an v problems/correcUve actions )
oqi;( MW-4 $<~. -3;i Flow "-J,o .. No
Meter i-J n ~ ,_, (jl 1 , i:; t;-" ,_. No
(J °'.,, \ MW-26 ,~. s:? ,l Flow I .... ~ .. No
Meter q r ;-o 3 7 , .1 ... No
rnye., TW4-19 ,2.,{."l, Flow ' ,; ~ -No
Meter I I -; Q '1, q (L 1.1.. ~ No
I n II TW4-4 ~q ~/,, Flow ,< t~ We-No
Meter 9. t ... fl 9 o ?. t( "'tire No
l'J4 "'"I TWN-2 '211 11 Flow ,, n ,. No
Meter -J..-,.,, 7, ~ n :1 .. No
nq,r;-TW4-22 iD -r~ Flow I I,. I} ... No
Meter , n -, n 7,, 9. G ?i .. No
nq,o TW4-24 7_:J_ 9.4 Flow ,~ 0 ... No
Meter .2 LJ q Lo//,. 71l -:11. "-No
o~~".1i TW4-25 ~~, '.ln Flow I s:;". 'ti --No
Meter 2 D 1 r... 7 1 ~ 7 7 .. No
10{)(} TW4-1 in~ ,i Flow I "2 -/_ -No
Meter "f , ... ~ c;1 5" 1 1 -No
l) q '1. q TW4-2 ,aq,q3 Flow I l , lJ --No
Meter ~g 01,;-Y 1 1!im No
O<I 'l,Q, TW4-11 ~~. \~ Flow I~{) • No
Meter , q 1_ ::i.. i;-.:::1 .'l. ... No
l-0'&-; ~ TW4-21 -,,;', ::, SC Flow /I'. 0 .... No
Meter 37~~ ~ .1. ~ , r... ~ No
IDq'.ln TW4-37 ,~,(u~ Flow I g I " ._ No
Meter j .;-, ~;; 111,. n ~ No
(') Q '.l. c;-" TW4-39 "'1/.. tJ1 Flow -,: ..; :. -,.. ,, , /fl D ,ii. No
Meter ~,u..~~ 1~ .. No
,o,~ TW4-40 ,&,A "2 /. Flow I Sf l'J
.,_ No
Meter 1311 e,~ 1 (){:} '?ag No
,nor. TW4-41 i~ q &.{ Flow ~.o "'Ills No
Meter '-!'Ac, l q o ~< .... No
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number): _______________ _
-; Depth is measured to the nearest 0.01 feet.
Weekly Inspection Form
Date Name
Time Well Oe oth* Comments an v p roblems/corrective actions )
1:21; MW-4 ~:2..t.f; Flow \of n h No
Meter "4 n i; 1 ,;-, st ~ Lt • No .
ll'i'tl MW-26 'x:1,;}, Flow ,r~ '-5 No
Meter q I c. 7 ~ ,;-~ ,-. No
·070~ TW4-19 7"9'. ',fl;°' Flow ,~.o .. No
Meter t I '\ q \ 9l D 10 -No
1.:1~, TW4-4 4il I.I I q Flow l ~-fl . ... No
Meter s? ~ q 1.1 ~n t. -No
''rJqi.//4 TWN-2 t;ll, tr< Flow ,~.o • No
Meter :.2 7 I'.. 7 ~ r:'. LI 1 1M No
1() '-' 0 TW4-22 q ~ 6i t. Flow ,,. n ... No
Meter I o 7 ~ ~ 1 ._. -~ .. No
dlO'\"f TW4-24 r,.q ,~ Flow II' •. /) ...... No
'I Meter ~"'q1u.t2~ on ... No
oq~~ TW4-25 / '.3 '-I,_ Flow 1< ~ .,._ No
Meter ,:, n :2 "' §'"q 1 , n ... No
I~•~ I TW4-1 10~.:l~ Flow 1.2.~ .... No
Meter 616.4.411 2 . .:i_ ..... No
I 1 \ \ TW4-2 q~,<ilO Flow I'-· n 'Willi No
Meter c;-,; o g -i. o 1 ... No
I -:Jr)/'. TW4-11 ~q. 1 'T Flow I/ .. D
,.. No
Meter , ct i 1 1 •. t:; 4 111115 No
OCftJ'Z. TW4-21 it~ "1 \ Flow ,,. (J ... No
Meter ·"J -, ~ I.( c...1 , n 7 ~ WIS No
JD'-IG TW4-37 rrq ~~ Flow t ~ /) 19lls No
M~ter ., ~ 4 1 '1 ~ "1 ~ WIS No
11-:r.~ TW4-39 , c:; /,, ~ Flow I~ 0 -k No
Meter 4 o '18 a. 1 \ 'fa No
1.1-:z.q TW4-40 "'1 ~ qt .. Flow IQ D .. No
Meter 1 ~ 'T 4 .:z , 3 q 4 .. No
J,l :it.. TW4-41 eA 1\ Flow · f.. n ~ No
Meter ,._, R 1 O ~ o. ~ 4 -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
Date: 6/25/2024 -6/26/2024
Depth to Depth to Depth to Water
Date Time Well Water (ft.) Date Time Well Water (ft.) Date Time Well (ft.)
6/26/2024 1022 MW-01 65 ,27 6/26/2024 809 MW-04 85 .63 6/26/2024 1002 PIEZ-01 68 ,07
6/26/2024 1048 MW-02 109.40 6/26/2024 807 TW4-0I 104 .13 6/26/2024 957 PIEZ-02 48.43
6/26/2024 1245 MW-03A 83 ,90 6/26/2024 813 TW4-02 l08.50 6/26/2024 955 PIEZ-03A 58.35
6/26/2024 1013 MW-05 107.73 6/26/2024 759 TW4-03 66.63 6/26/2024 846 PIEZ-04 70.40
6/26/2024 1005 MW-II 85 ,22 6/26/2024 834 TW4-04 85 ,91 6/26/2024 852 PIEZ-05 68.67
6/26/2024 1018 MW-12 109.24 6/26/2024 749 TW4-05 74 ,24 6/26/2024 1153 TWN-01 71.66
6/26/2024 1226 MW-14 l01 .25 6/26/2024 836 TW4-06 81.23 6/26/2024 1400 TWN-02 84 .23
6/26/2024 1221 MW-15 l05 02 6/26/2024 811 TW4-07 82 ,94 6/26/2024 950 TWN-03 45 .25
6/26/2024 1410 MW-17 72.52 6/26/2024 803 TW4-08 85 .97 6/26/2024 953 TWN-04 64 .78
6/26/2024 1019 MW-18 74 .62 6/26/2024 752 TW4-09 71.97 6/26/2024 1016 TWN-06 81.46
6/26/2024 1000 MW-19 67 .50 6/26/2024 746 TW4-10 71.25 6/26/2024 1025 TWN-07 79.40
6/26/2024 943 MW-20 87 .66 6/26/2024 815 TW4-ll 89.23 6/26/2024 1014 TWN-14 58 71
6/26/2024 911 MW-22 66 .04 6/26/2024 941 TW4-12 57 ,50 6/26/2024 1010 TWN-16 48 .05
6/26/2024 1023 MW-23 I 13 .87 6/26/2024 938 TW4-l3 58.44 6/26/2024 948 TWN-18 63.46
6/26/2024 1041 MW-24A 109 05 6/26/2024 932 TW4-14 77.66 6/26/2024 1209 TWN-19 53,88
6/26/2024 1042 MW-24 108 .00 6/26/2024 1056 TW4-16 75 ,05 6/26/2024 1028 TWN-20 78.41
6/26/2024 959 MW-25 83 .1 I 6/26/2024 1150 TW4-18 75 ,02 6/26/2024 1031 TWN-21 79 .12
6/26/2024 818 MW-26 83 .77 6/26/2024 1311 TW4-19 74 ,89 6/25/2024 1220 DR-05 83 ,26
6/26/2024 945 MW-27 59.60 6/26/2024 1318 TW4-21 76.35 6/25/2024 1213 DR-06 93 ,97
6/26/2024 1054 MW-28 74.55 6/26/2024 825 TW4-22 69,89 6/25/2024 1331 DR-07 91.78
6/26/2024 1051 MW-29 106 .28 6/26/2024 838 TW4-23 76.24 6/25/2024 1204 DR-08 51.52
6/26/2024 1035 MW-30 75 .55 6/26/2024 828 TW4-24 68 .85 6/25/2024 1157 DR-09 86 .58
6/26/2024 l046 MW-31 70 05 6/26/2024 1327 TW4-25 74 ,12 6/25/2024 1152 DR-10 78 .34
6/26/2024 l052 MW-32 8 1.87 6/26/2024 841 TW4-26 76 ,19 6/25/2024 1400 DR-11 97 .91
6/26/2024 1203 MW-33 DRY 6/26/2024 908 TW4-27 79.68 6/25/2024 1354 DR-12 DRY
6/26/2024 1210 MW-34 107 .11 6/26/2024 907 TW4-28 50.50 6/25/2024 1349 DR-13 69 .51
6/26/2024 1155 MW-35 112.26 6/26/2024 929 TW4-29 80 .18 6/25/2024 1137 DR-14 76.16
6/26/2024 1159 MW-36 I 10.48 6/26/2024 917 TW4-30 75 .68 6/25/2024 1145 DR-15 92 ,79
6/26/2024 1216 MW-37 I 06.38 6/26/2024 910 TW4-31 76.45 6/25/2024 1130 DR-17 64.50
6/26/2024 930 MW-38 69 .93 6/26/2024 905 TW4-32 57 .92 6/25/2024 1048 DR-19 63 .33
6/26/2024 921 MW-39 64 .05 6/26/2024 903 TW4-33 80 ,03 6/25/2024 1043 DR-20 55 ,58
6/26/2024 1419 MW-40 79 .81 6/26/2024 925 TW4-34 78 .55 6/25/2024 1028 DR-21 100 .36
6/26/2024 1046 MW-41B 108.41 6/26/2024 920 TW4-35 76 ,33 6/25/2024 1107 DR-22 DRY
MW-26=TW4-15 6/26/2024 935 TW4-36 59.51 6/25/2024 1036 DR-23 70.45
MW-32 = TW4-17 6/26/2024 823 TW4-37 74 ,36 6/25/2024 1114 DR-24 44 ,89
Comments: 6/26/2024 755 TW4-38 61.88
6/26/2024 821 TW4-39 76 ,19
6/26/2024 843 TW4-40 72.73
6/26/2024 832 TW4-41 89 .28
6/26/2024 859 TW4-42 72.33
6/26/2024 914 TW4-43 73 ,65
@ .
.
MW-418
-¢-5510
TW4-43
~5523
TWN-20
Cl 5564
TW4-42
¢5522
estimated dry area
perched monitoring well installed April ,
2023 showing elevation in feet amsl
temporary perched monitoring
well installed September, 2021
showing elevation in feet amsl
temporary perched nitrate monitoring
well installed April, 2021 showing
elevation in feet amsl
temporary perched monitoring well
installed April, 2019 showing
elevation in feet amsl
MW-S h d • • II h • e 5504 perc e monitoring we s owing
elevation in feet amsl
. TW4-12
1 0 5567 temporary perched_ monitoring well
showing elevation in feet amsl
TWN-7 . . .
<>55 70 temporary perched nitrate monitoring
well show ing elevat ion in feet amsl
PIEZ-1 perched piezometer showing
'-5587 elevation in feet amsl
RUIN SPRING A 5380 seep or spring showing
elevation in feet amsl
DR-10 .
5482
DR-11 · .
5488
~
1 mile
'
' .....
\
' ' ' .....
' ..... '-abtl ~oned
-~-10
, \ ab•~,~n•d
5583 rwt --0l I TWN--09
1587 .
PJ=Z:01
\1 7.., -
MW-19
•
: MW-4 , MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, 1W4-21 , TW4 -37 , TW4-39, TW4-40 and TW4-41 are Chloroform pumping wells ;
TW4-22, TW4-24 , TW4-25 and TWN-2 are ni trate pumping wells ; TW -1 , TW4-2 and TW4-11 water levels are b elow the base of the Burro Canyon Formation
HYDRO
GEO
CHEM, INC.
KRIGED 2nd QUARTER, 2024 WATER LEVELS
WHITE MESA SITE
A PPR OV ED DATE REFERENCE
H/718000/aug24/WL/Uwl0624 .srf
FIGURE
0-1
I
--,, ,,,,
II
@ . .
MW-418
-¢-5510
TW4-43
~5523
TWN-20
IJ 5564
TW4-42
¢5522
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, TW4-22,
TW4-37 and TW4-39)
estimated nitrate capture zone boundary
stream tube resulting from pumping . (note:
combined capture shown for TWN-2 and
TW4-25)
estimated dry area
perched monitoring well installed April,
2023 showing elevation in feet amsl
temporary perched monitoring
well installed September, 2021
showing elevation in feet amsl
temporary perched nitrate monitoring
well installed April, 2021 showing
elevation in feet amsl
temporary perched monitoring well
installed April, 2019 showing
elevation in feet amsl
MW-S h d . . II . e 5504 perc e monitoring we showing
elevation in feet amsl
I TW4-12 0 5567 temporary perched monitoring well
showing elevation in feet amsl
TWN~ . . .
<>5570 temporary perched nitrate monitoring
well showing elevation in feet amsl
PIEZ-1 perched piezometer showing
~ 5587 elevation in feet amsl
RUIN SPRING b 5380 seep or spring showing
elevation in feet amsl
DR-10 .
5482
DR-11 .
5480
1 mile ~;
, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-1
\ \
\ \
\ \
\ \
\ \
\
'
'
.... '
aN(\,tned
TWN-15
'-a,DatJ,'-°"ne d
.,
abana,o ned
TWN-11
M -10
-\ abo ~l!lled
'TWll.os
Js9a7 • +
Pf,2:01
,Jt, -
~
5520
TW4-22 , TW4-24 , TW4-25 and TWN-2 are nitrate pumping wells ; TW-1 , TW4-2 and TW4-11 water levels are below the base of the Burro Canyon Formation
HYDR □
GE □
CHEM, INC. APPROVED
KRIGED 2nd QUARTER, 2024 WATER LEVELS
AND ESTIMATED CAPTURE ZONES
WHITE MESA SITE
DATE REFERENCE
H/718000/aug24/WL/Uwl0624cz2 ,srf
FIGURE
..~,
D-2
estimated chloroform capture zone boundary
cP ; .,. stream tubes resulting from pumping. (note:
v' I' combined capture shown ror MW-4 . TW4-1 ,
U I TW4-2 , TW4-4 , TW4-11 , TW4-40andTW4-41 ;
and ror MW-26 , TW4-19, TW4-21 , TW4-22 ,
TW4-43
~5523
TW4-42
9 5522
MW-25
.5530
TW4-7
0 5538
PIEZ-2
-' 5580
TW4-37 and TW4-39)
estim ated nitrate capture zone boundary
stream tube resulting from pumping . (note:
combined capture shown for TWN-2 and
TW4-25)
temporary perched monitoring well
installed September, 2021 sl1owing
elevation in feet amsl
temporary perched monitoring well
insta lled April, 2019 showing
elevation in feet amsl
perched monitoring well showing
elevation i n feet ams l
temporary perched monitoring we ll
showing elevation in feet ams l
perched piezometer showing
elevation in feet amsl
..... ..... -
I
T
~
I
I
,,,,.
/
I
57 6',
\ ..
.
"~!>~56~
5551 .5
-a;'?
~-·
5555
5540
5535
-5532.5
, \;!_.I 0 ,1 VV't•.>r--_ 5
s!t2a l'-552i -_ _ ·. 530
1W4:,29 Otw4~0----~: "'
0 .1i52 7_ -,_ 't22?5
----· ----~13 .
~A-3505524 ~~5 ~3 ~·: · ;1::;..<S 34 •
0
525
NOTES: MW-4, MW-26, TW4-1, TW4-2 , TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 are chloroform pumping wells;
TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells; TW4-11 water level is below the base of the Burro Canyon Formation
HYDR □
GED
KRIGED 2nd QUARTER, 2024 WATER LEVELS
AND ESTIMATED CAPTURE ZONES
WHITE MESA SITE
(detail ma CHEM, INC. APPROVE D DATE RE FE RENCE
H:/718000/aug24/WL/Uw0624cz.srf
FIGURE
0-3
TabE
Kriged Previous Quarter Groundwater Contour Map
@
MW-4 18
,¢-5510
TW4-43
~5523
TWN-20
IJ5554
TW4-42
¢552 3
estimated dry area
perched monitoring well installed April,
2023 showing elevation in feet amsl
temporary pe rched monitoring
well installed September , 2021
showing elevation in feet amsl
tempo rary perched nitr ate monitoring
well installed April , 2021 showing
elevat ion in feet amsl
temporary perched monitoring well
Installed April , 2019 showing
elevation in feet amsl
MW-5 h d . . I e 5 505 perc e monitoring wel showing
i TW4-12
Q 5557
eleva tion in feet amsl
temporary perched monitoring well
showing elevation in feet amsl
TWN-7 h d . . . .A.5570 temporary perc e nitrate monrtorrng
V well showing elevation in feet amsl
PIEZ-1 perched piezometer showing
~ 55 88 elevati on in feet ams!
RUIN SPRING b 5380 seep or spring showing
elevation in feet amsl
OR -10 .
5-!8~ •
OR-11 , .
5188
rt
1 mile
\
\
..............
\
\
.\
\ \
\ \
\ ' \
' .....
•
.Jb,1ng 0 1ed
' ' ...
.1t,.t11i o : ,~\d
TWN-15
,al>.;$~11
~-1 0
-. ""'f\10• ~ \ TWN-41t
TWN!o11 ~
/ 'IEZi01
;d.JJl1~)1)rl f "i ~
Ml/ll-1ll,.,, -
TWN--08
I
#f#i ---
TWN-11
; MW-4, MW-26,-TW4 ~1, TW4-2 , TW4-4, TW4-11, 1W4-19, TW4-21 , TW4-37 , TW4-39 , TW4-40 and TW4-41 are chloroform pumping wens ;
TW4-22 , TW4-24, TW4-25 and TWN-2 are nitrate pumping wells ; TW4-11 water level ls below the base of the Burro Canyon Formation
HYDRO
GED
CHEM. INC.
KRIGED 1st QUARTER, 2024 WATER LEVELS
WHITE MESA SITE
APPROVED DATE REFERENCE
H:/718000/may24/WL/Uwl0324 .srf
FIGURE
E-1
Tab F
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 Tota .I
Water Land Point Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,620.77 5,622.33 1.56 123.6
5,527.63 09/25/79 94.70 93.14
5,527.63 10/10/79 94.70 93.14
5,528.43 01/10/80 93.90 92.34
5,529.93 03/20/80 92.40 90.84
5,528.03 06/17/80 94.30 92.74
5,528.03 09/15/80 94.30 92.74
5,527.93 10/08/80 94.40 92.84
5,527.93 02/12/81 94.40 92.84
5,525.93 09/01/84 96.40 94.84
5,528.33 12/01/84 94.00 92.44
5,528.13 02/01/85 94.20 92.64
5,528.33 06/01/85 94.00 92.44
5,528.93 09/01/85 93.40 91.84
5,528.93 10/01/85 93.40 91.84
5,528.93 11/01/85 93.40 91.84
5,528.83 12/01/85 93.50 91.94
5,512.33 03/01/86 110.00 108.44
5,528.91 06/19/86 93.42 91.86
5,528.83 09/01/86 93.50 91.94
5,529.16 12/01/86 93.17 91.61
5,526.66 02/20/87 95.67 94.11
5,529.16 04/28/87 93.17 91.61
5,529.08 08/14/87 93.25 91.69
5,529.00 11/20/87 93.33 91.77
5,528.75 01/26/88 93.58 92.02
5,528.91 06/01/88 93.42 91.86
5,528.25 08/23/88 94.08 92.52
5,529.00 11/02/88 93.33 91.77
5,528.33 03/09/89 94.00 92.44
5,529.10 06/21/89 93.23 91.67
5,529.06 09/01/89 93.27 91.71
5,529.21 11/15/89 93.12 91.56
5,529.22 02/16/90 93.11 91.55
5,529.43 05/08/90 92.90 91.34
5,529.40 08/07/90 92.93 91.37
5,529.53 11/13/90 92.80 91.24
5,529.86 02/27/91 92.47 90.91
5,529.91 05/21/91 92.42 90.86
5,529.77 08/27/91 92.56 91.00
5,529.79 12/03/91 92.54 90.98
5,530.13 03/17/92 92.20 90.64
5,529.85 06/11/92 92.48 90.92
5,529.90 09/13/92 92.43 90.87
Water Levels and Data over Time
White Mesa Mill -Well MW 4
Total or
Measuring Measured Total
Water Land Point Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,620.77 5,622.33 1.56 123.6
5,529.92 12/09/92 92.41 90.85
5,530.25 03/24/93 92.08 90.52
5,530.20 06/08/93 92.13 90.57
5,530.19 09/22/93 92.14 90.58
5,529.75 12/14/93 92.58 91.02
5,530.98 03/24/94 91.35 89.79
5,531.35 06/15/94 90.98 89.42
5,531.62 08/18/94 90.71 89.15
5,532.58 12/13/94 89.75 88.19
5,533.42 03/16/95 88.91 87.35
5,534.70 06/27/95 87.63 86.07
5,535.44 09/20/95 86.89 85.33
5,537.16 12/11/95 85.17 83.61
5,538.37 03/28/96 83.96 82.40
5,539.10 06/07/96 83.23 81.67
5,539.13 09/16/96 83.20 81.64
5,542.29 03/20/97 80.04 78.48
5,551.58 04/07/99 70.75 69.19
5,552.08 05/11/99 70.25 68.69
5,552.83 07/06/99 69.50 67.94
5,553.47 09/28/99 68.86 67.30
5,554.63 01/03/00 67.70 66.14
5,555.13 04/04/00 67.20 65.64
5,555.73 05/02/00 66.60 65.04
5,556.03 05/11/00 66.30 64.74
5,555.73 05/15/00 66.60 65.04
5,555.98 05/25/00 66.35 64.79
5,556.05 06/09/00 66.28 64.72
5,556.18 06/16/00 66.15 64.59
5,556.05 06/26/00 66.28 64.72
5,556.15 07/06/00 66.18 64.62
5,556.18 07/13/00 66.15 64.59
5,556.17 07/18/00 66.16 64.60
5,556.26 07/25/00 66.07 64.51
5,556.35 08/02/00 65.98 64.42
5,556.38 08/09/00 65.95 64.39
5,556.39 08/15/00 65.94 64.38
5,556.57 08/31/00 65.76 64.20
5,556.68 09/08/00 65.65 64.09
5,556.73 09/13/00 65.60 64.04
5,556.82 09/20/00 65.51 63.95
5,556.84 09/29/00 65.49 63.93
5,556.81 10/05/00 65.52 63.96
Water Levels and Data over Time
White Mesa Mill -Well MW 4
Total or
Measuring Measured Total
Water Land Point Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,620.77 5,622.33 1.56 123.6
5,556.89 10/12/00 65.44 63.88
5,556.98 10/19/00 65.35 63.79
5,557.01 10/23/00 65.32 63.76
5,557.14 11/09/00 65.19 63.63
5,557.17 11/14/00 65.16 63.60
5,556.95 11/21/00 65.38 63.82
5,557.08 11/30/00 65.25 63.69
5,557.55 12/07/00 64.78 63.22
5,557.66 01/14/01 64.67 63.11
5,557.78 02/09/01 64.55 62.99
5,558.28 03/29/01 64.05 62.49
5,558.23 04/30/01 64.10 62.54
5,558.31 05/31/01 64.02 62.46
5,558.49 06/22/01 63.84 62.28
5,558.66 07/10/01 63.67 62.11
5,559.01 08/20/01 63.32 61.76
5,559.24 09/19/01 63.09 61.53
5,559.26 10/02/01 63.07 61.51
5,559.27 11/08/01 63.06 61.50
5,559.77 12/03/01 62.56 61.00
5,559.78 01/03/02 62.55 60.99
5,559.96 02/06/02 62.37 60.81
5,560.16 03/26/02 62.17 60.61
5,560.28 04/09/02 62.05 60.49
5,560.76 05/23/02 61.57 60.01
5,560.58 06/05/02 61.75 60.19
5,560.43 07/08/02 61.90 60.34
5,560.44 08/23/02 61.89 60.33
5,560.71 09/11/02 61.62 60.06
5,560.89 10/23/02 61.44 59.88
5,557.86 11/22/02 64.47 62.91
5,561.10 12/03/02 61.23 59.67
5,561.39 01/09/03 60.94 59.38
5,561.41 02/12/03 60.92 59.36
5,561.93 03/26/03 60.40 58.84
5,561.85 04/02/03 60.48 58.92
5,536.62 05/01/03 85.71 84.15
5,528.56 06/09/03 93.77 92.21
5,535.28 07/07/03 87.05 85.49
5,534.44 08/04/03 87.89 86.33
5,537.10 09/11/03 85.23 83.67
5,539.96 10/02/03 82.37 80.81
5,535.91 11/07/03 86.42 84.86
Water Levels and Data over Time
White Mesa Mill -Well MW 4
Total or
Mea s urin g Measured Total
Water Land Point Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,620.77 5,622.33 1.56 123.6
5,550.70 12/03/03 71.63 70.07
5,557.58 01/15/04 64.75 63.19
5,558.80 02/10/04 63.53 61.97
5,560.08 03/28/04 62.25 60.69
5,560.55 04/12/04 61.78 60.22
5,561.06 05/13/04 61.27 59.71
5,561.48 06/18/04 60.85 59.29
5,561.86 07/28/04 60.47 58.91
5,529.17 08/30/04 93.16 91.60
5,536.55 09/16/04 85.78 84.22
5,529.00 10/11/04 93.33 91.77
5,541.55 11/16/04 80.78 79.22
5,541.12 12/22/04 81.21 79.65
5,540.59 01/18/05 81.74 80.18
5,542.85 02/28/05 79.48 77.92
5,537.91 03/15/05 84.42 82.86
5,548.67 04/26/05 73.66 72.10
5,549.53 05/24/05 72.80 71.24
5,544.36 06/30/05 77.97 76.41
5,545.16 07/29/05 77.17 75.61
5,544.67 09/12/05 77.66 76.10
5,541.28 09/27/05 81.05 79.49
5,536.96 12/07/05 85.37 83.81
5,546.49 03/08/06 75.84 74.28
5,546.15 06/13/06 76.18 74.62
5,545.15 07/18/06 77.18 75.62
5,545.91 11/17/06 76.42 74.86
5,545.90 02/27/07 76.43 74.87
5,548.16 05/02/07 74.17 72.61
5,547.20 08/13/07 75.13 73.57
5,547.20 10/10/07 75.13 73.57
5,547.79 03/26/08 74.54 72.98
5,545.09 06/25/08 77.24 75.68
5,550.36 08/26/08 71.97 70.41
5,550.39 10/14/08 71.94 70.38
5,542.25 03/03/09 80.08 78.52
5,542.25 06/24/09 80.08 78.52
5,550.19 09/10/09 72.14 70.58
5,550.94 12/11/09 71.39 69.83
5,546.08 03/11/10 76.25 74.69
5,550.98 05/11/10 71.35 69.79
5,548.33 09/29/10 74.00 72.44
5,551.01 12/21/10 71.32 69.76
Water Levels and Data over Time
White Mesa Mill -Well MW 4
Total or
Measuring Measured Total
Water Land Point Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,620.77 5,622.33 1.56 123.6
5,547.00 02/28/11 75.33 73.77
5,557.54 06/21/11 64.79 63.23
5,551.14 09/20/11 71.19 69.63
5,550.32 12/21/11 72.01 70.45
5,551.22 03/27/12 71.11 69.55
5,551.29 06/28/12 71.04 69.48
5,550.29 09/27/12 72.04 70.48
5,549.31 12/28/12 73.02 71.46
5,552.30 03/28/13 70.03 68.47
5,550.18 06/27/13 72.15 70.59
5,552.55 09/27/13 69.78 68.22
5,553.23 12/20/13 69.10 67.54
5,551.91 03/27/14 70.42 68 .86
5,552 .93 06/25/14 69.40 67.84
5,552.23 09/25/14 70.10 68.54
5,552.08 12/17/14 70 .25 68.69
5,551.13 03/26/15 71.20 69.64
5,556.02 06/22/15 66.31 64.75
5,543.38 09/30/15 78.95 77.39
5,551.13 12/02/15 71.20 69.64
5,542.10 03/30/16 80.23 78.67
5,542.31 06/30/16 80.02 78.46
5,540 .96 09/29/16 81.37 79.81
5,540 .65 12/21/16 81.68 80.12
5,542 .05 03/30/17 80.28 78.72
5,550.28 06/27/17 72.05 70.49
5,534.84 09/28/17 87.49 85.93
5,532.41 11/30/17 89.92 88.36
5,534.64 03/28/18 87.69 86.13
5,539.53 06/22/18 82.80 81.24
5,537.04 09/24/18 85.29 83.73
5,537.82 12/17/18 84.51 82.95
5,536 .10 03/25/19 86.23 84.67
5,536.20 06/24/19 86.13 84.57
5,538.67 08/12/19 83 .66 82.10
5,533.67 11/18/19 88.66 87.10
5,525.79 02/10/20 96.54 94.98
5,533.63 05/04/20 88.70 87.14
5,536.94 09/21/20 85.39 83.83
5,535.31 12/28/20 87.02 85.46
5,539.70 03/11/21 82.63 81.07
5,540.44 06/24/21 81.89 80.33
5,540.65 08/13/21 81.68 80.12
Water Levels and Data over Time
White Mesa Mill -Well MW 4
Total or
Measuring Measured Total
Water Land Point Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,620.77 5,622.33 1.56 123.6
5,539.10 12/30/21 83.23 81.67
5,539.70 02/10/22 82.63 81.07
5,540.38 06/28/22 81.95 80.39
5,540.67 08/15/22 81.66 80.10
5,539.98 11/17/22 82.35 80.79
5,539.65 03/24/23 82.68 81.12
5,537.60 06/26/23 84.73 83.17
5,541.11 09/25/23 81.22 79.66
5,539.99 11/20/23 82.34 80.78
5,538.84 03/25/24 83.49 81.93
5,536.70 06/26/24 85.63 84.07
-N
0
Depth Below Measuring Point (ft.) -0
0
00
0
O"I
0
~
0
N
0 0
I-----+------+----+----+----+------+ 09/25/79
09/25/81
09/25/83
09/25/85
09/25/87
09/25/89
09/25/91
09/25/93 ~
~
-09/25/95 ~
~
09/25/97 ;'" .,
09/25/99 i
"'C ......
09/25/01 ="'
0
09/25/03 ~
09/25/05 ~
~
09/25/07,-;::;;
:""'
09/25/09 S: a
09/25/11 ~
09/25/13
09/25/15
-09/25/17
09/25/19
09/25/21
09/25/23
.__ _ _. __ __._ __ _.__ __ _.__ __ ..___~ 09/25/25
Water Levels and Data over Time
White Mesa Mill-Well TW4-1
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
5,518.60 08/15/22 99.98 98.96
5,517.52 11/17/22 101.06 100.04
5,516.08 03/24/23 102.50 101.48
5,513.83 06/26/23 104.75 103.73
5,515.88 09/25/23 102.70 101.68
5,512.89 11/20/23 105.69 104.67
5,518.08 03/25/24 100.50 99.48
5,514.45 06/26/24 104.13 103.11
Depth Below Measuring Point (ft.) ---N -0 \0 00 -.J 0\
0 0 0 0 0 0 0
V,
0
11/08/99
05/08/01
11/08/02
05/08/04
11/08/05
~
05/08/07 ~
~
I
i-,.
11/08/08 ~
~ -05/08/10 ~
~
n)
11/08/11 "S. =-0
-05/08/13 ~
""l
~
-11108/14 sr
n) ,_
05/08/16 ~
C"' -
11/08/17 _g --
-05/08/19
11/08/20
05/08/22
11/08/23
"-----'---~-~--..__-~ __ ..,_ _ __, 05/08/25
Water Levels and Data over Time
White Mesa Mill -Well TW 4-2
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,623.10 5,624.72 1.62 120.900
5,548.57 11 /08 /99 76.15 74.53
5,548.57 11/09/99 76.15 74.53
5,548.32 01/02/00 76.40 74.78
5,548.52 01/10/00 76.20 74.58
5,548.32 01/17/00 76.40 74.78
5,548.72 01/24/00 76.00 74.38
5,548.62 02/01/00 76.10 74.48
5,548.62 02/07/00 76.10 74.48
5,549.02 02/14/00 75.70 74.08
5,549.12 02/23/00 75.60 73.98
5,549.22 03/01/00 75.50 73.88
5,549.32 03/08/00 75.40 73.78
5,549.22 03/15/00 75.50 73.88
5,549.92 03/20/00 74.80 73.18
5,549.72 03/29/00 75.00 73.38
5,549.42 04/04/00 75.30 73.68
5,549.52 04/13/00 75.20 73.58
5,549.72 04/21/00 75.00 73.38
5,549.82 04/28/00 74.90 73.28
5,549.82 05/01/00 74.90 73.28
5,550.12 05/11/00 74.60 72.98
5,549.82 05/15/00 74.90 73.28
5,550.12 05/25/00 74.60 72.98
5,550.12 06/09/00 74.60 72.98
5,550.22 06/16/00 74.50 72.88
5,550.07 06/26/00 74.65 73.03
5,550.17 07/06/00 74.55 72.93
5,550.17 07/13/00 74.55 72.93
5,550.18 07/18/00 74.54 72.92
5,550.33 07/27/00 74.39 72.77
5,550.38 08/02/00 74.34 72.72
5,550.40 08/09/00 74.32 72.70
5,550.42 08/15/00 74.30 72.68
5,550.54 08/31/00 74.18 72.56
5,550.87 09/08/00 73.85 72.23
5,550.97 09/13/00 73.75 72.13
5,551.04 09/20/00 73.68 72.06
5,545.83 10/05/00 78.89 77.27
5,546.47 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 TW 4-2
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,623.10 5,624.72 1.62 120.900
5,551.59 04/30/01 73.13 71.51
5,552.03 05/31/01 72.69 71.07
5,552.33 06/21/01 72.39 70.77
5,552.64 07/10/01 72.08 70.46
5,553.32 08/20/01 71.40 69.78
5,553.73 09/19/01 70.99 69.37
5,553.98 10/02/01 70.74 69.12
5,554.14 11/08/01 70.58 68.96
5,554.79 12/03/01 69.93 68.31
5,554.74 01/03/02 69.98 68.36
5,554.91 02/06/02 69.81 68.19
5,555.15 03/26/02 69.57 67.95
5,555.39 04/09/02 69.33 67.71
5,555.73 05/23/02 68.99 67.37
5,555.79 06/05/02 68.93 67.31
5,555.91 07/08/02 68.81 67.19
5,556.04 08/23/02 68.68 67.06
5,556.25 09/11/02 68.47 66.85
5,556.72 10/23/02 68.00 66.38
5,556.42 11/22/02 68.30 66.68
5,557.01 12/03/02 67.71 66.09
5,557.20 01/09/03 67.52 65.90
5,557.35 02/12/03 67.37 65.75
5,557.83 03/26/03 66.89 65.27
5,557.87 04/02/03 66.85 65.23
5,553.71 05/01/03 71.01 69.39
5,548.98 06/09/03 75.74 74.12
5,548.14 07/07/03 76.58 74.96
5,547.75 08/04/03 76.97 75.35
5,547.22 09/11/03 77.50 75.88
5,547.68 10/02/03 77.04 75.42
5,547.52 11/07/03 77.20 75.58
5,548.29 12/03/03 76.43 74.81
5,554.00 01/15/04 70.72 69.10
5,555.46 02/10/04 69.26 67.64
5,556.90 03/28/04 67.82 66.20
5,557.49 04/12/04 67.23 65.61
5,558.07 05/13/04 66.65 65.03
5,558.19 06/18/04 66.53 64.91
5,559.00 07/28/04 65.72 64.10
5,554.26 08/30/04 70.46 68.84
5,551.97 09/16/04 72.75 71.13
5,549.65 10/11/04 75.07 73.45
Water Levels and Data over Time
White Mesa Mill -Well TW 4-2
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) (L D) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,623.10 5 624.72 l.62 120 .900
5,549 .89 11/16/04 74.83 73.21
5,550.37 12/22/04 74.35 72.73
5,549.95 01/18/05 74.77 73.15
5,550.09 02/28/05 74.63 73.01
5,550.13 03/15/05 74 .59 72 .97
5,550 .18 04/26/05 74.54 72.92
5,550.32 05/24/05 74.40 72.78
5,550.21 06/30/05 74.51 72.89
5,550 .11 07/29/05 74.61 72.99
5,550.33 09/12/05 74.39 72.77
5,550.29 12/07/05 74.43 72.81
5,551 .30 03/08/06 73.42 71.80
5,551.42 06/14/06 73.30 71.68
5,550.52 07/18/06 74.20 72.58
5,550.52 11/07/06 74.20 72.58
5,552.89 02/27/07 71.83 70.21
5,552.06 05/02/07 72.66 71.04
5,552 .02 08/14/07 72.70 71.08
5,552.20 10/10/07 72.52 70.90
5,554.58 03/26/08 70.14 68.52
5,555.23 06/24/08 69.49 67.87
5,555.29 08/26/08 69.43 67.81
5,555.43 10/14/08 69.29 67.67
5,555.73 03/10/09 68.99 67.37
5,556.25 06/24/09 68.47 66.85
5,555.94 09/10/09 68 .78 67 .16
5,556.53 12/11/09 68.19 66 .57
5,557.87 03/11/10 66.85 65.23
5,557.63 05/11/10 67 .09 65.47
5,557.24 09/29/10 67.48 65.86
5,557 .00 12/21/10 67.72 66.10
5,557.61 02/28/11 67 .11 65.49
5,557.58 06/21/11 67.14 65 .52
5,557.46 09/20/11 67.26 65.64
5,557.84 12/21/11 66.88 65.26
5,557.86 03/27/12 66.86 65 .24
5,557.87 06/28/12 66.85 65.23
5,557.46 09/27/12 67.26 65.64
5,557.82 12/28/12 66 .90 65.28
5,559.39 03/28/13 65.33 63 .71
5,559.21 06/27/13 65.51 63.89
5,559.26 09/27/13 65.46 63.84
5,559.27 12/20/13 65.45 63 .83
Water Levels and Data over Time
White Mesa Mill -Well TW 4-2
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,623.10 5,624.72 1.62 120.900
5,558.92 03/27/14 65.80 64.18
5,557.99 06/25/14 66.73 65.11
5,557.09 09/25/14 67.63 66.01
5,557.07 12/17/14 67.65 66.03
5,549.93 03/26/15 74.79 73.17
5,551.30 06/22/15 73.42 71.80
5,547.12 09/30/15 77.60 75.98
5,538.34 12/02/15 86.38 84.76
5,542.22 03/30/16 82.50 80.88
5,538.31 06/30/16 86.41 84.79
5,536.70 09/29/16 88.02 86.40
5,540.40 12/21/16 84.32 82.70
5,536.61 03/30/17 88.11 86.49
5,547.16 06/27/17 77.56 75.94
5,522.65 09/28/17 102.07 100.45
5,532.64 11/30/17 92.08 90.46
5,506.94 03/28/18 117.78 116.16
5,521.60 06/22/18 103.12 101.50
5,510.01 09/24/18 114.71 113.09
5,543.01 12/17/18 81.71 80.09
5,522.70 03/25/19 102.02 100.40
5,522.49 06/24/19 102.23 100.61
5,522.29 08/12/19 102.43 100.81
5,515.62 11/18/19 109.10 107.48
5,516.60 02/10/20 108.12 106.5
5,514.51 05/04/20 110.21 108.59
5,522.29 09/21/20 102.43 100.81
5,521.08 12/28/20 103.64 102.02
5,513.42 03/11/21 111.30 109.68
5,513.51 06/24/21 111.21 109.59
5,526.62 08/13/21 98.10 96.48
5,514.01 12/30/21 110.71 109.09
5,513.52 02/10/22 111.20 109.58
5,514.54 06/28/22 110.18 108.56
5,566.52 08/15/22 58.20 56.58
5,525.09 11/17/22 99.63 98.01
5,523.61 03/24/23 101.11 99.49
5,512.26 06/26/23 112.46 110.84
5,527.35 09/25/23 97.37 95.75
5,516.50 11/20/23 108.22 106.6
5,522.26 03/25/24 102.46 100.84
5,516.22 06/26/24 108.50 106.88
_ Depth,.Below_l.,1easuring Point (ft.)
W N -0 \0 00 -.J 0\ V,
0 0 0 0 0 0 0 0 0
11/08/99
05/08/01
11/08/02
05/08/04
l 1/08/05
~
05 /08/07 ~ .,...
I
11 /08/08 N
~ ~
05/08 /10 -~
~
11/08/11 _g
l"'t--=-
05/08/13 0 < ~
11/08/14 -s
~ -· a
05/08/16 ~ --~
11/08/17 O"' -a
05/08/19 ~
11/08/20
05/08/22
11/08/23
05/08/25
Water Levels and Data over Time
White Mesa Mill -Well TW 4-3
Total or
Measuring Measured Total
Water Land Point Depth to Depth to
Elevation Surface Elevation Length Of Date Of Water Water
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Total Depth Of Well
5,631.21 5,632.23 1.02 140.30
5,565.78 11/29/99 66.45 65.43
5,566.93 1/2/00 65.30 64.28
5,567.03 1110/00 65.20 64.18
5,566.83 1/17/00 65.40 64.38
5,567.13 1/24/00 65.10 64.08
5,567.33 2/1/00 64.90 63.88
5,567.13 2/7/00 65.10 64.08
5,567.43 2/14/00 64.80 63.78
5,567.63 2/23/00 64.60 63.58
5,567.73 3/1/00 64.50 63.48
5,567.83 3/8/00 64.40 63.38
5,567.70 3/15/00 64.53 63.51
5,568.03 3/20/00 64.20 63.18
5,567.93 3/29/00 64.30 63.28
5,567.63 4/4/00 64.60 63.58
5,567.83 4/13/00 64.40 63.38
5,568.03 4/21/00 64.20 63.18
5,568.23 4/28/00 64.00 62.98
5,568.13 5/1/00 64.10 63.08
5,568.53 5/11/00 63.70 62.68
5,568.23 5/15/00 64.00 62.98
5,568.53 5/25/00 63.70 62.68
5,568.61 6/9/00 63.62 62.60
5,568.69 6/16/00 63.54 62.52
5,568.45 6/26/00 63.78 62.76
5,568.61 7/6/00 63.62 62.60
5,568.61 7/6/00 63.62 62.60
5,568.49 7/13/00 63.74 62.72
5,568.55 7/18/00 63.68 62.66
5,568.65 7/27/00 63.58 62.56
5,568.73 8/2/00 63.50 62.48
5,568.77 8/9/00 63.46 62.44
5,568.76 8/16/00 63.47 62.45
5,568.95 8/31/00 63.28 62.26
5,568.49 9/8/00 63.74 62.72
5,568.67 9/13/00 63.56 62.54
5,568.96 9/20/00 63.27 62.25
5,568.93 10/5/00 63.30 62.28
5,569.34 11/9/00 62.89 61.87
5,568.79 12/6/00 63.44 62.42
5,569.11 1/3/01 63.12 62.10
5,569.75 2/9/01 62.48 61.46
5,570.34 3/28/01 61.89 60.87
Water Levels and Data over Time
White Mesa Mill -Well TW 4-3
Total or
Measuring Measured Total
Water Land Point Depth to Depth to
Elevation Surface Elevation Length Of Date Of Water Water
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (b lw.LSD) Total Depth Of Well
5,631.21 5,632.23 L.02 140.30
5,570.61 4/30/01 61.62 60.60
5,570.70 5/31/01 61.53 60.51
5,570.88 6/21/01 61.35 60.33
5,571.02 7/10/01 61.21 60.19
5,571.70 8/20/01 60.53 59.51
5,572.12 9/19/01 60.11 59.09
5,572.08 10/2/01 60.15 59.13
5,572.78 11/8/01 59.45 58.43
5,573.27 12/3/01 58.96 57.94
5,573.47 1/3/02 58.76 57.74
5,573.93 2/6/02 58.30 57.28
5,574.75 3/26/02 57.48 56.46
5,574.26 4/9/02 57.97 56.95
5,575.39 5/23/02 56.84 55.82
5,574.84 6/5/02 57.39 56.37
5,575.33 7/8/02 56.90 55.88
5,575.79 8/23/02 56.44 55.42
5,576.08 9/11/02 56.15 55.13
5,576.30 10/23/02 55.93 54.91
5,576.35 11/22/02 55.88 54.86
5,576.54 12/3/02 55.69 54.67
5,576.96 1/9/03 55.27 54.25
5,577.11 2/12/03 55.12 54.10
5,577.61 3/26/03 54.62 53.60
5,572.80 4/2/03 59.43 58.41
5,577.89 5/1/03 54.34 53.32
5,577.91 6/9/03 54.32 53.30
5,577.53 7/7/03 54.70 53.68
5,577.50 8/4/03 54.73 53.71
5,577.71 9/11/03 54.52 53.50
5,577.31 10/2/03 54.92 53.90
5,577.33 11/7 /03 54.90 53.88
5,577.34 12/3/03 54.89 53.87
5,578.24 1/15/04 53.99 52.97
5,578.38 2/10/04 53.85 52 .83
5,578.69 3/28/04 53.54 52.52
5,579.15 4/12/04 53.08 52.06
5,579.47 5/13/04 52.76 51.74
5,579.53 6/18/04 52.70 51.68
5,580.17 7/28/04 52.06 51.04
5,580.20 8/30/04 52.03 51.01
5,580.26 9/16/04 51.97 50.95
5,580.12 10/11/04 52.11 51.09
Water Levels and Data over Time
White Mesa Mill -Well TW 4-3
Total or
Measuring Measured Total
Water Land Point Depth to Depth to
Elevation Surface Elevation Length Of Date Of Water Water
(Z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Total Depth Of Well
5,631.21 5 ,632.23 1.02 140.30
5,579.93 11/16/04 52.30 51.28
5,580.07 12/22/04 52.16 51.14
5,579.80 1/18/05 52.43 51.41
5,580.35 2/28/05 51.88 50.86
5,580.57 3/15/05 51.66 50.64
5,580.86 4/26/05 51.37 50.35
5,581.20 5/24/05 51.03 50.01
5,581.51 6/30/05 50.72 49.70
5,581.55 7/29/05 50.68 49.66
5,581.68 9/12/05 50.55 49.53
5,581.83 12/7/05 50.40 49.38
5,564.92 3/8/06 67.31 66.29
5,582.73 6/13/06 49.50 48.48
5,582.33 7/18/06 49.90 48.88
5,582.75 11/7/06 49.48 48.46
5,583.35 2/27/07 48.88 47.86
5,559.57 5/2/07 72.66 71.64
5,583.29 8/14/07 48.94 47.92
5,583.49 10/10/07 48.74 47.72
5,584 .95 3/26/08 47.28 46.26
5,584.59 6/24/08 47.64 46.62
5,584.55 8/26/08 47.68 46.66
5,584.03 10/14/08 48.20 47.18
5,583.64 3/3/09 48.59 47.57
5,587.34 6/24/09 44.89 43.87
5,582.90 9/10/09 49.33 48.31
5,583.27 12/11/09 48.96 47.94
5,583.63 3/11/10 48.60 47 .58
5,583.82 5/11/10 48.41 47.39
5,583.51 9/29/10 48.72 47.70
5,582.86 12/21/10 49.37 48.35
5,582.60 2/28/11 49.63 48.61
5,590.00 6/21/11 42.23 41.21
5,582.70 9/20/11 49.53 48.51
5,583.05 12/21/11 49.18 48.16
5,581.93 3/27/12 50.30 49.28
5,582.03 6/28/12 50.20 49.18
5,582.08 9/27/12 50.15 49.13
5,581.94 12/28/12 50.29 49.27
5,581.52 3/28/13 50.71 49.69
5,580.88 6/27/13 51.35 50.33
5,580.58 9/27/13 51.65 50.63
5,580.38 12/20/13 51.85 50.83
Water Levels and Data over Time
White Mesa Mill -Well TW 4-3
Total or
Measuring Measured Total
Water Land Point Depth to Depth to
Elevation Surface Elevation Length Of Date Of Water Water
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Total Depth Of Well
5,631.21 5,632.23 1.02 140.30
5,579.62 3/27/14 52.61 51.59
5,578.52 6/25/14 53.71 52.69
5,577.59 9/25/14 54.64 53.62
5,577.40 12/17/14 54 .83 53.81
5,576.73 3/26/15 55.50 54.48
5,576.62 6/22/15 55.61 54.59
5,576.16 9/30/15 56.07 55.05
5,575.57 12/2/15 56.66 55.64
5,575.62 3/30/16 56.61 55.59
5,574.89 6/30/16 57.34 56.32
5,574.37 9/29/16 57.86 56.84
5,574.23 12/21/16 58.00 56.98
5,574.23 3/30/17 58.00 56.98
5,573.72 6/27/17 58.51 57.49
5,573.28 9/28/17 58.95 57.93
5,572.66 11/30/17 59.57 58.55
5,572.19 3/28/18 60.04 59.02
5,571.83 6/22/18 60.40 59.38
5,571.34 9/25/18 60.89 59.87
5,570.99 12/17/18 61.24 60.22
5,570 .21 3/25/19 62.02 61.00
5,570.28 6/24/19 61.95 60.93
5,570.04 8/12/19 62.19 61.17
5,569.68 11/18/19 62.55 61.53
5,569.35 2/10/20 62.88 61.86
5,568.92 5/4/20 63.31 62.29
5,568.38 9/22/20 63.85 62.83
5,568.28 12/30/20 63.95 62 .93
5,568.31 3/11/21 63.92 62.90
5,567.65 6/24/21 64.58 63.56
5,567.61 8/13/21 64.62 63.60
5,567.72 12/30/21 64.51 63.49
5,567.15 2/10/22 65.08 64.06
5,567.57 6/28/22 64.66 63.64
5,566.83 8/15/22 65.40 64.38
5,566 .63 11/17/22 65.60 64.58
5,566.89 3/24/23 65.34 64.32
5,566.44 6/26/23 65.79 64.77
5,566.20 9/28/23 66.03 65.01
5,566.32 11/20/23 65.91 64.89
5,565.81 3/26/24 66.42 65.40
5,565.60 6/26/24 66.63 65.61
-..J
V,
-..J
0
Depth Below Measuring Point (ft.)
O'I O'I V, V, .!,.
V, 0 V, 0 V,
.!,.
0
11/29/99
11/29/00
11/29/01
11/29/02
11/29/03
11/29/04
11/29/05
11/29/06 ~
~
11/29/07 ,&;;I,,.
I
~
11/29/08 ~
11/29/09 ~ .,
11/29/10 c
~
"O
11/29/11 ..... =-
-11/29/12 0 < ~
11/29/13 .,
~ -· 11/29/14 e
~
11/29/15 -~
11/29/16 0--
11/29/17
e
"O ._,
11/29/18
11/29/19
11/29/20
,-11/29/21
11/29/22
11/29/23
11/29/24
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 .30) 5,613.485 1.184 114.5
5,540.99 02/12/03 72.50 71.32
5,541.68 03/26/03 71.81 70.63
5,541.77 04/02/03 71.72 70.54
5,541.89 05/01/03 71.60 70.42
5,542.03 06/09/03 71.46 70.28
5,541.93 07/07/03 71.56 70.38
5,541.89 08/04/03 71.60 70.42
5,541.83 09/11/03 71.66 70.48
5,541.89 10/02/03 71.60 70.42
5,542.00 11/07/03 71.49 70.31
5,542.01 12/03/03 71.48 70.30
5,542.56 01/15/04 70.93 69.75
5,542.71 02/10/04 70.78 69.60
5,543.23 03/28/04 70.26 69.08
5,543.56 04/12/04 69.93 68.75
5,543.87 05/13/04 69.62 68.44
5,543.92 06/18/04 69.57 68.39
5,544.66 07/28/04 68.83 67.65
5,544.80 08/30/04 68.69 67.51
5,544.85 09/16/04 68.64 67.46
5,544.71 10/11/04 68.78 67.60
5,544.53 11/16/04 68.96 67.78
5,544.63 12/22/04 68.86 67.68
5,544.31 01/18/05 69.18 68.00
5,544.59 02/28/05 68.90 67.72
5,544.69 03/15/05 68.80 67.62
5,544.68 04/26/05 68.81 67.63
5,544.79 05/24/05 68.70 67.52
5,544.80 06/30/05 68.69 67.51
5,544.78 07/29/05 68.71 67.53
5,545.01 09/12/05 68.48 67.30
5,545.23 12/07/05 68.26 67 .08
5,545.74 03/08/06 67.75 66.57
5,545.79 06/14/06 67.70 66.52
5,545.86 07/18/06 67.63 66.45
5,545.81 11/07/06 67.68 66.50
5,546.68 02/27/07 66.81 65.63
5,546.54 05/02/07 66.95 65.77
5,547.16 08/15/07 66.33 65.15
5,547.22 10/10/07 66.27 65.09
5,548.31 03/26/08 65.18 64.00
5,548.87 06/24/08 64.62 63.44
5,549.24 08/26/08 64.25 63.07
Water Levels and Data over Time
White Mesa Mill -Well TW 4-4
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,612.301 5,613.485 1.184 114 .5
5,549.31 10/14/08 64.18 63.00
5,549.73 03/03/09 63.76 62.58
5,549.91 06/24/09 63.58 62.40
5,549.70 09/10/09 63.79 62.61
5,549.87 12/11/09 63.62 62.44
5,545.60 03/11/10 67.89 66.71
5,530.88 05/11/10 82.61 81.43
5,545.24 09/29/10 68.25 67.07
5,533.66 12/21/10 79.83 78.65
5,544.44 02/28/11 69.05 67.87
5,543.73 06/21/11 69.76 68.58
5,540.48 09/20/11 73.01 71.83
5,544.36 12/21/11 69.13 67.95
5,543.48 03/27/12 70.01 68 .83
5,543.49 06/28/12 70.00 68.82
5,543.36 09/27/12 70.13 68.95
5,543.51 12/28/12 69.98 68.80
5,543.49 03/28/13 70.00 68 .82
5,543.36 06/27/13 70 .13 68.95
5,544.59 09/27/13 68.90 67.72
5,543.33 12/20/13 70.16 68.98
5,544 .11 03/27/14 69.38 68.20
5,543.61 06/25/14 69.88 68.70
5,543.67 09/25/14 69.82 68.64
5,543 .69 12/17/14 69.80 68.62
5,541.49 03/26/15 72.00 70.82
5,539.67 06/22/15 73.82 72.64
5,541.35 09/30/15 72.14 70.96
5,541.63 12/02/15 71.86 70.68
5,540 .38 03/30/16 73.11 71.93
5,539.46 06/30/16 74.03 72.85
5,540.39 09/29/16 73.10 71.92
5,539.21 12/21/16 74.28 73.10
5,539 .53 03/30/17 73.96 72.78
5,539.89 06/27/17 73.60 72.42
5,540.09 09/28/17 73.40 72.22
5,539 .07 11/30/17 74.42 73.24
5,540.45 03/28/18 73.04 71.86
5,531.79 06/22/18 81.70 80.52
5,531 .94 09/24/18 81.55 80.37
5,540.22 12/17/18 73.27 72.09
5,514.10 03/25/19 99.39 98.21
5,529.11 06/24/19 84.38 83.20
Water Levels and Data over Time
White Mesa Mill -Well TW 4-4
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (L D) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,612.30] 5,613.485 1.184 114.5
5,527.15 08/12/19 86.34 85.16
5,528.08 11/18/19 85.41 84.23
5,534.40 02/10/20 79.09 77.91
5,533.16 05/04/20 80.33 79.15
5,539.39 09/21/20 74.10 72.92
5,536.54 12/28/20 76.95 75.77
5,533.98 03/11/21 79 .51 78.33
5,528.14 06/24/21 85.35 84.17
5,532.43 08/13/21 81.06 79.88
5,530.32 12/30/21 83.17 81.99
5,539.46 02/10/22 74.03 72.85
5,529.37 06/28/22 84.12 82.94
5,524.97 08/15/22 88.52 87.34
5,530.93 11/17/22 82.56 81.38
5,532.43 03/24/23 81.06 79.88
5,529.32 06/26/23 84.17 82.99
5,525.34 09/25/23 88.15 86.97
5,528.25 11/20/23 85.24 84.06
5,528.03 03/25/24 85.46 84.28
5,527.58 06/26/24 85.91 84.73
Depth Below Measuring Point (ft.) ---0 0 0
'Cl 00 --.J 0\ u,
0 0 0 0 0
05/25/00
11/25/01
05/25/03
11/25/04
05/25/06
~
11/25/07 ~ ....
I ....
05/25/09 ~ ......
~
""t
11/25/10 t:,
~
"'CS ......
05/25/12 =-
0 < ~
11/25/13 ""t
~ -· e
05/25/15 ~ -~
O"'
11/25/16 -e
"'CS -05/25/18
11/25/19
05/25/21
11/25/22
05/25/24
Water Levels and Data over Time
White Mesa Mill -Well TW 4-5
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,638.75 5 640 .70 1.95 121.85
5,579 .3 0 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 {b lw.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
5,63 8.7 5 5,640 .7 0 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
5,585.81 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
5,568.04 08/15/22 72.66 70.71
5,567.85 11/17/22 72.85 70.9
5,567.40 03/24/23 73.30 71.35
5,567 .39 06/26/23 73.31 71.36
5,567.32 09/28/23 73.38 71.43
5,567.05 11/20/23 73.65 71.7
5,566.90 03/26/24 73.80 71.85
5,566.46 06/26/24 74.24 72.29
Depth Below Measuring Point (ft.)
00 --.J --.J 0\ 0\ Ul Ul
0 Ul 0 V, 0 Ul 0
01/02/00
01/02/01
01/02/02
01/02/03
01/02/04
01/02/05
01/02/06
01/02/07 ,-o3
~
01/02/08 ,I:.
I
UI
01/02/09 ~
~
01/02/10
ft)
"'t
~
01/02/11 ft)
"C
~ =-01/02/12 0 <
01/02/13 ft)
"'t
,-o3
01/02/14 -· a
ft)
01/02/15 -?
01/02/16 a -a
01/02/17 "C ..._,,
01/02/18
01/02/19
01/02/20
01/02/21
01/02/22
01/02/23
01/02/24
01/02/25
Water Levels and Data over Time
White Mesa Mill -Well TW 4-6
Measuring Total or Total Water Land Measured Total
Elevation Surface Point Length Of Date Of Depth to Depth to Depth Of
(z) (LSD) Elevation Riser (L) Monitoring Water Water Well
(MP) {blw.MP} (blw.LSD) (blw.LSD)
5,607.33 5,608.78 1.450 99.60
5 522.28 05 /25100 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 TW 4-6
Measuring Total or Total Water Land Measured Total
Elevation Surface Point Length Of Date Of Depth to Depth to Depth Of
(z) (LSD) Elevation Riser (L) Monitoring Water Water Well
(MP) (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
Measuring Total or Total Water Land Measured Total
Elevation Surface Point Length Of Date Of Depth to Depth to Depth Of
(z) (LSD) Elevation Riser (L) Monitoring Water Water Well
(MP) (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
Measuring Total or Total Water Land Measured Total
Elevation Surface Point Length Of Date Of Depth to Depth to Depth Of
(z) (LSD) Elevation Riser (L) Monitoring Water Water Well
(MP) (blw.MP} (blw.LSD) (blw.LSD)
5,607.33 5 608.78 1.450 99 .60
5,529.78 12/30/21 79.00 77.55
5,529.23 02/10/22 79.55 78.10
5,529.65 06/28/22 79.13 77.68
5,528.84 08/15/22 79.94 78.49
5,528.58 11/17/22 80.20 78.75
5,528.28 03/24/23 80.50 79.05
5,528.43 06/26/23 80.35 78.90
5,528.20 09/28/23 80.58 79.13
5,528.35 11/20/23 80.43 78.98
5,527.78 03/26/24 81.00 79.55
5,527.55 06/26/24 81.23 79.78
'° 0
00
Vl
Depth Below Measuring Point (ft.)
00
0
-.J
Vl
-.J
0
0\
Vl
0\
0
Vl
Vl
Vl
0
05/25/00
05/25/01
05/25/02
05/25/03
05/25/04
05/25/05
05/25/06
05/25/07 "'"3
~
05/25/08 .,.
I
O"I
05/25/09 ~
05/25/10 -~
""C
05/25/11 ~
~
"'CS
05/25/12 -=-
05/25/13 0 < ~
05/25/14 ""C
"'"3 ...
05/25/15 a
~ -05/25/16 ?
05/25/17 O" -a
05/25/18 "'CS -
05/25/19
05/25/20
05/25/21
05/25/22
05/25/23
05/25/24
05/25/25
Water Levels and Data over Time
White Mesa Mill -Well TW4-7
Measuring Total or
Water Land Measured Total Depth Total Depth
Elevation Surface Point Length Of Date Of Depth to to Water Of Well
(WL) (LSD) Elevation Riser (L) Monitoring Water (blw.LSD) (blw.LSD) (MP) (blw.MP}
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 I 1/30/00 64.62 63.42
5,556.15 12/06/00 64.92 63.72
Water Levels and Data over Time
White Mesa Mill -Well TW4-7
Measuring Total or
Water Land Point Length Of Date Of Measured Total Depth Total Depth
Elevation Surface Elevation Riser (L) Monitoring Depth to to Water Of Well
(WL) (LSD) Water (blw.LSD) (blw.LSD) (MP) {blw.MP}
5,6 19.87 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 /3 0/01 63.56 62.36
5,557.77 05 /31/01 63.30 62.10
5,557.84 06 /2 1/01 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 Level and Data over Time
White Mesa Mill -Well TW4-7
Measuring Total or
Water Land Measured Total Depth Total Depth
Elevation Surface Point Length Of Date Of Depth to to Water Of Well
(WL) (LSD) Elevation Riser (L) Monitoring Water (blw.LSD) (blw.LSD) (MP) (!!lw.MP}
5,619.87 5,62 1.07 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
Measuring Total or
Water Land Measured Total Depth Total Depth
Elevation Surface Point Length Of Date Of Depth to to Water Of Well
(WL) (LSD) Elevation Riser (L) Monitoring Water (blw.LSD) (blw.LSD) (MP) (blw .MP}
5,619 .87 5,621.07 1.20 121.0
5,555.80 12/2 0/13 65 .27 64 .07
5,555.40 03 /27 /1 4 65 .67 64.47
5,554.20 06/25 /14 66 .87 65.67
5,552.96 09/25 /1 4 68.11 66.91
5,552.62 12 /17/14 68.45 67.25
5,548.57 03 /26 /15 72.50 71.30
5,555.88 06/22/15 65.19 63.99
5,546.22 09/30/15 74.85 73.65
5,539.47 12/02 /15 81.60 80.40
5,545 .08 03 /30 /16 75.99 74.79
5,544 .62 06 /30 /16 76.45 75 .25
5,544 .61 09/29/16 76 .46 75 .26
5,544.09 12/21/16 76 .98 75 .78
5,546 .07 03 /30/17 75.00 73.80
5,549 .36 06 /27/17 71.71 70.51
5,541.91 09 /28/17 79 .16 77.96
5,540.51 11/30/17 80.56 79.36
5,540.71 03/28/18 80.36 79.16
5,540.12 06/22/18 80.95 79.75
5,540.17 09/25 /18 80.90 79 .70
5,538.26 12/17 /18 82.81 81.61
5,538 .81 03 /25/19 82.26 81.06
5,539 .11 06/24/19 81.96 80.76
5,539.75 08 /12/19 81.32 80.12
5,539.13 11/18/19 81 .94 80 .74
5,538 .03 02/10/20 83.04 81 .84
5,538.29 05 /04/20 82.78 81.58
5,540.28 09/22/20 80 .79 79.59
5,539.17 12/30/20 81.90 80.70
5,539.03 03 /11/21 82.04 80 .84
5,538 .82 06/24/21 82.25 81.05
5,539.00 08/13 /21 82.07 80.87
5,539.08 12/30/21 81.99 80.79
5,537.94 02 /10/22 83.13 81.93
5,538 .86 06/28/22 82.21 81.01
5,538 .64 08/15 /22 82.43 81.23
5,538 .68 11 /17/22 82.39 81.19
5,538.18 03/24/23 82 .89 81.69
5,538.37 06/26/23 82 .70 81.50
5,536.84 09/28/23 84 .23 83.03
5,538 .29 11/20/23 82 .78 81.58
5,537.80 03 /26/24 83 .27 82 .07
5,538.13 06/26/24 82.94 81.74
'Cl
0
OQ
V,
Depth Below Measuring Point (ft.)
OQ
0
--.l
V,
--.l
0
O"I
V,
O"I
0
V,
V,
Vl
0
11/29/99
11/29/00
11/29/01
11/29/02
11/29/03
11/29/04
11/29/05
11 /29/06 ~
~
11/29/07 ,I:-
I
--.J
11/29/08 ~ .....
('I)
11/29/09 .,
~
11/29/10
('I)
"Cl ..... =-
11/29/11 0 < ('I)
11 /29/12 .,
~ ...
11/29/13 e
('I) --11/29/14 ?
C"' -11129115 , e
"Cl ._,
1 1/29/16
11/29/17
11/29/18
11/29/19
11/29/20
11/29/21
11 /29/22
11/29/23
11/29/24
Water Le vels and Data over Time
White Mesa Mill -Well TW4-8
Total or
Measuring Measured
Water Land Point Depth to Total Depth Total
Elevation Surface Elevation Length Of Date Of Water to Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,616 .80 5,621.40 4.60 126 .2
5,546.40 11/29/99 75.00 70.40
5,546 .20 01/02/00 75.20 70 .60
5,546 .50 01/10/00 74.90 70 .30
5,546.30 01/17/00 75.10 70.50
5,546 .60 01 /24/00 74.80 70 .20
5,546 .50 02 /01 /00 74.90 70.30
5,546.50 02 /07/00 74.90 70.30
5,546.90 02/14/00 74.50 69 .90
5,546.95 02 /23 /00 74.45 69 .85
5,547.05 03/01/00 74 .35 69.75
5,547.05 03 /08 /00 74 .35 69 .75
5,547.10 03/15 /00 74.30 69 .70
5,547 .50 03 /20 /00 73.90 69.30
5,547.40 03 /29/00 74 .00 69.40
5,547 .20 04/04/00 74 .20 69.60
5,547.40 04/13 /00 74.00 69.40
5,547 .60 04/21 /00 73.80 69.20
5,547.70 04/28 /00 73 .70 69.10
5,547 .70 05 /01/00 73 .70 69.10
5,548.00 05 /11/00 73.40 68.80
5,547.70 05/15 /00 73 .70 69 .10
5,547 .90 05/25/00 73 .50 68 .90
5,547.90 06 /09 /00 73 .50 68 .90
5,548.00 06/16/00 73.40 68.80
5,547 .87 06/26/00 73 .53 68.93
5,547 .95 07 /06/00 73.45 68 .85
5,547.96 07/13/00 73.44 68.84
5,547 .95 07/18/00 73.45 68.85
5,548 .11 07 /27/00 73.29 68.69
5,548.15 08/02/00 73.25 68.65
5,548.17 08/09/00 73.23 68 .63
5,548.16 08/15 /00 73.24 68 .64
5,548.40 08 /31/00 73.00 68.40
5,548.50 09/08 /00 72.90 68.30
5,548.62 09/13 /00 72 .78 68.18
5,548 .75 09 /20/00 72.65 68 .05
5,548.76 10/05 /00 72 .64 68.04
5,549.00 11 /09/00 72.40 67.80
5,548.85 12/06/00 72 .55 67.95
5,549.47 01/03 /01 71.93 67.33
5,549.89 02 /09/01 71 .51 66.91
5,550.37 03 /27/01 71.03 66.43
5,550 .50 04/30/01 70.90 66.30
5,550.68 05 /31/01 70.72 66.12
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 06/20/01 70.72 66.12
5,551.02 07/10/01 70.38 65 .78
5,551.32 08 /20/01 70 .08 65.48
5,551.49 09/19/01 69.91 65.31
5,551.64 10/02 /01 69 .76 65 .16
5,551.81 11 /08 /01 69.59 64 .99
5,552.22 12/03 /01 69.18 64 .58
5,552.16 01/03 /02 69 .24 64.64
5,552.38 02 /06/02 69 .02 64.42
5,552 .85 03 /26/02 68.55 63.95
5,552.83 04/09/02 68.57 63.97
5,553.20 05 /23 /02 68 .20 63.60
5,553 .16 06 /05 /02 68.24 63 .64
5,553 .32 07 /08 /02 68 .08 63.48
5,553.49 08 /23 /02 67.91 63.31
5,553.69 09/11/02 67.71 63 .11
5,554 .09 10/23 /02 67.31 62.71
5,554.02 11/22/02 67.38 62.78
5,554.23 12/03 /02 67.17 62.57
5,554.43 01/09/03 66 .97 62.37
5,554.42 02/12/03 66.98 62.38
5,554.71 03 /26/03 66 .69 62 .09
5,554.83 04/02 /03 66 .57 61.97
5,552.21 05 /01/03 69 .19 64 .59
5,547.93 06/09/03 73.47 68.87
5,546 .97 07/07/03 74.43 69.83
5,546 .58 08 /04 /03 74.82 70 .22
5,546 .24 09/11/03 75 .16 70.56
5,546.38 10/02 /03 75 .02 70.42
5,546.40 11/07/03 75.00 70.40
5,546 .59 12/03 /03 74.81 70.21
5,551.29 01/15 /04 70.11 65.51
5,552.69 02/10/04 68.71 64.11
5,554 .06 03 /28 /04 67.34 62 .74
5,554.52 04/12/04 66.88 62.28
5,555.06 05 /13 /04 66 .34 61.74
5,555.11 06/18/04 66 .29 61 .69
5,555 .88 07 /28/04 65.52 60.92
5,552.97 08/30/04 68.43 63.83
5,550 .65 09/16/04 70.75 66.15
5,548.40 10/11/04 73.00 68.40
5,548 .28 11 /16/04 73.12 68.52
5,548.80 12/22/04 72.60 68.00
5,548.43 01/18/05 72.97 68.37
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) MonHoring (blw.MP) (blw.LSD) Well
5,616 .80 5,62 1.40 4.60 126.2
5,548 .61 02/28 /05 72.79 68 .19
5,548.64 03 /15/05 72.76 68 .16
5,548.65 04 /26 /05 72.75 68.15
5,548 .85 05 /24/05 72 .55 67.95
5,548 .73 06 /30/05 72.67 68 .07
5,548 .62 07 /29/05 72 .78 68.18
5,548.80 09 /12/05 72 .60 68.00
5,548 .71 12/07 /05 72.69 68.09
5,549 .72 03 /08 /06 71.68 67 .08
5,549.70 06/13 /06 71.70 67.10
5,549.70 07 /18/06 71.70 67 .10
5,549 .65 11 /07 /06 71.75 67 .15
5,551.11 02/27/07 70.29 65 .69
5,550 .20 05 /02 /07 71.20 66.60
5,550 .59 08/14/07 70.81 66.21
5,550 .76 10/10/07 70.64 66 .04
5,551.95 03 /26 /08 69.45 64.85
5,552.36 06/24/08 69 .04 64.44
5,552.50 08 /26 /08 68.90 64.30
5,552.56 10/14/08 68 .84 64.24
5,552 .91 03 /03 /09 68.49 63 .89
5,553.27 06 /24 /09 68.13 63 .53
5,553.12 09/10/09 68.28 63.68
5,553.63 12/11/09 67.77 63.17
5,554.65 03 /11/10 66.75 62.15
5,554.57 05 /11/10 66.83 62.23
5,554.34 09 /29/10 67.06 62.46
5,554.09 12/21/10 67.31 62 .71
5,554.50 02 /28 /11 66 .9 62.30
5,554.79 06/21/11 66.61 62.01
5,554.63 09 /20/11 66.77 62 .17
5,555.01 12/21/11 66.39 61.79
5,554.85 03 /27/12 66.55 61.95
5,554.90 06 /28 /12 66.5 61.90
5,554.85 09/27/12 66.55 61.95
5,554.86 12/28 /12 66.54 61.94
5,556.48 03 /28/13 64 .92 60.32
5,556.35 06/27/13 65 .05 60.45
5,556 .60 09/27/13 64 .80 60 .20
5,556 .56 12/20/13 64 .84 60.24
5,556.38 03 /27/14 65.02 60.42
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
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 5,62 1.40 4.60 126.2
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 12/02/1 5 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 12/17/1 8 84 .54 79 .94
5,536.30 03 /25/19 85.10 80.50
5,536.67 06/24/19 84 .73 80 .13
5,536.82 08/12/19 84 .58 79 .98
5,536 .37 11/18/19 85.03 80.43
5,535.53 02 /10/20 85.87 81.27
5,535.25 05 /04 /20 86.15 81.55
5,535.49 09/22/20 85.91 81.31
5,534.69 12/30 /20 86.71 82 .11
5,534.92 03/11/21 86.48 81.88
5,534.82 06/24/21 86 .58 81 .98
5,536.12 08/13 /21 85.28 80 .68
5,534 .94 12/30/21 86.46 81.86
5,535 .76 02/10/22 85.64 81.04
5,534.80 06/28/22 86.60 82.00
5,535.98 08/15 /22 85.42 80.82
5,535.89 11/17/22 85.51 80 .91
5,536.04 03 /24/23 85.36 80.76
5,536.13 06 /26/23 85.27 80 .67
5,536 .00 09/28 /23 85.40 80.80
5,536.21 11/20/23 85 .19 80.59
5,535.44 03/26 /24 85.96 81.36
5,535.43 06 /26/24 85 .97 81.37
-0
0
-,:,
0
00
0
-.J
0
Depth Below Measuring Point (ft.)
°' 0
u,
0 """ 0
w
0
N -0 0 0
11/29/99
11/29/00
11/29/01
11/29/02
11/29/03
11/29/04
11/29/05
11/29/06
11/29/07
11/29/08
11/29/09
11/29/10
1 f/29/11
11/29/12
11/29/13
11/29/14
11/29/15
11/29/16
11/29/17
11/29/18
11/29/19
11/29/20
11/29/21
11/29/22
ll/29/23
11/29/24
i-3
~
""' I
QC
~
S"
"'l
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~
"Cl
~ =-~
"'l
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~ -~
er
9
"Cl -
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 TW 4-9
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,636.11 5,637.59 1.48 120.1
5,581.04 05/31/01 56.55 55.07
5,581.12 06/21/01 56.47 54.99
5,581.15 07/10/01 56.44 54.96
5,581.51 08/20/01 56.08 54.60
5,581.70 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
(W L) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5 63 6.11 5,637.59 1.4 8 120.1
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 /1 5/05 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 09/1 0/09 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/l 1 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/l l 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) (bhv.LSD) Well
5 636.11 5,637.59 1.48 12 0 .I
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 .2 6 09/29/16 63.33 61.85
5,573.88 12/21/16 63.71 62.23
5,573.99 03/30/17 63.60 62.12
5,573.49 06/27/17 64.10 62.62
5,573.05 09/28/17 64.54 63.06
5,572.34 11/30/17 65.25 63.77
5,574.97 03/28/18 62.62 61.14
5,571.69 06/22/18 65.90 64.42
5,571.20 09/25/18 66.39 64.91
5,570.92 12/17/18 66.67 65.19
5,570.16 03/25/19 67.43 65.95
5,570.17 06/24/19 67.42 65.94
5,570.01 08/12/19 67 .58 66.10
5,569 .66 11/18/19 67 .93 66.45
5,569.38 02/10/20 68.21 66.73
5,569.04 05/04/20 68.55 67.07
5,568.30 09/22/20 69.29 67 .81
5,568.12 12/30/20 69.47 67.99
5,568.18 03/11/21 69.41 67.93
5,567.66 06/24/21 69.93 68.45
5,567.54 08/13/21 70.05 68.57
5,567.77 12/30/21 69.82 68.34
5,567.12 02/10/22 70.47 68.99
5,567.68 06/28/22 69.91 68.43
5,566.83 08/15/22 70.76 69.28
5,566.66 11/17/22 70 .93 69.45
5,566.20 03/24/23 71.39 69.91
5,566 .31 06/26/23 71.28 69.8
5,566.22 09/28/23 71.37 69.89
5,566.18 11/20/23 71.41 69.93
5,565.79 03/26/24 71.80 70.32
5,565.62 06/26/24 71.97 70.49
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Water Levels and Data over Time
White Mesa Mill-Well TW4-10
1ota1 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
5,578 .02 09/12/05 56.22 53 .97
Water Levels and Data over Time
White Mesa Mill-Well TW4-10
total or
Measuring Measured Total
Water Land Point Length Depth to Depth to Total
Elevation Surface Elevation Of Riser Date Of Water Water Depth Of
(WL) (LSD) (MP) (L) Monitoring (bhv.MP) (blw.LSD) Well
5,631.99 5,634.24 2.25 113.2
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
5,578.43 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
5,571.79 06/30/16 62.45 60.20
Water Levels and Data over Time
White Mesa Mill -Well TW 4-10
101a1 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) M onitoring: (blw.MP) (blw.LSD) Well
5,63 1.99 5 634.24 2.25 I 13.2
5,571.27 09/29/16 62 .97 60.72
5,570 .94 12 /21/16 63 .30 61.05
5,571.09 03 /30/17 63 .15 60.90
5,570 .59 06 /27/17 63 .65 61.40
5,570 .12 09 /28/17 64.12 61.87
5,569.42 11/30/17 64.82 62.57
5,569.06 03 /28 /18 65.18 62.93
5,568.81 06/22/18 65.43 63.18
5,568.33 09 /25/18 65.91 63 .66
5,568.08 12/17 /18 66.16 63 .91
5,567.33 03 /25/19 66 .91 64 .66
5,567.39 06/24/19 66 .85 64.60
5,567.21 08/12/19 67 .03 64.78
5,566.88 11/18/19 67 .36 65.11
5,566 .61 02/10/20 67.63 65 .38
5,566.27 05 /04/20 67.97 65 .72
5,565.53 09/22 /20 68.71 66.46
5,565.33 12/30/20 68.91 66.66
5,565.46 03 /11/21 68 .78 66.53
5,564.86 06/24/21 69.38 67.13
5,564.89 08/13 /21 69.35 67 .10
5,565.05 12/30/21 69.19 66 .94
5,564.41 02 /10/22 69.83 67.58
5,564.82 06 /28 /22 69.42 67 .17
5,564 .09 08/15/22 70.15 67 .90
5,563 .87 11/17/22 70.37 68.12
5,563 .52 03 /24 /23 70.72 68.47
5,563.54 06/26/23 70 .70 68.45
5,563.51 09/28/23 70.73 68.48
5,563.28 11/20/23 70.96 68 .71
5,563.12 03 /26/24 71.12 68 .87
5,562.99 06 /26/24 71.25 69 .00
00
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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) (L D) (MP) Riser (L} Monitoring (blw.MP) (blw.LSD) Well
5,62 1.92 5 623.62 1.70 102.4
5 54 8.32 0 1/0 3/02 7 5.3 0 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 Elevation Length Of Date Of Water Water Depth Of
(WL) (MP) Riser (L) Monitoring (blw.MP) (bhv.LSD) Well
5,623.62 1.70 102.4
5,529.85 06/30/16 93.77 92.07
5,530 .64 09/29/16 92.98 91.28
5,530.61 12/21/16 93.01 91.31
5,538.48 03 /30/17 85.14 83.44
5,529.93 06 /27/17 93.69 91.99
5,530.41 09/28/17 93.21 91.51
5,531.26 11/30/17 92.36 90.66
5,530.28 03/28/18 93.34 91.64
5,530.36 06/22/18 93.26 91.56
5,530.41 09/24/18 93.21 91.51
5,531.96 12/17/18 91.66 89.96
5,532.84 03/25/19 90.78 89.08
5,533 .62 06/24/19 90.00 88.30
5,532.49 08/12/19 91.13 89.43
5,532.50 11/18/19 91.12 89.42
5,533.60 02/10/20 90.02 88.32
5,533.02 05/04/20 90.60 88.90
5,530.54 09/21/20 93 .08 91.38
5,533.51 12/28/20 90.11 88.41
5,533.54 03/11/21 90.08 88.38
5,534.12 06/24/21 89 .50 87.80
5,533.72 08/13/21 89.90 88.20
5,533.62 12/30/21 90.00 88.30
5,533.51 02/10/22 90.11 88.41
5,534.08 06/28/22 89 .54 87.84
5,533.84 08/15/22 89.78 88.08
5,533.21 11/17/22 90.41 88.71
5,524.87 03/24/23 98.75 97.05
5,533.87 06/26/23 89.75 88 .05
5,534.86 09/25/23 88.76 87.06
5,534.84 11/20/23 88.78 87.08
5,533.61 03/25/24 90.01 88.31
5,534.39 06/26/24 89.23 87 .53
0
-0
0
'-0
0
Depth Below Measuring Point (ft.)
00
0
--.I
0 °' 0
Vl
0
01/03/02
01/03/03
01/03/04
01/03/05
01/03/06
01/03/07
01/03/08 '"'3
~
01/03/09 ""' I
~
~
01/03/10 ~ ....
ti)
"1
01/03/11 e::,
ti)
't:S ....
01/03/12 =-~
01/03/13
ti)
"1
'"'3 ...
01/03/14 e
ti) -?
01/03/15 i:r a
't:S
01/03/16 -
01/03/17
01/03/18
01/03/19
01/03/20
01/03/21
01/03/22
01/03/23
01/03/24
01/03/25
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 {bhv.MP) (blw.LSD) Well
5 622.38 5,624 .23 l.85 103.2
5,588.53 05/02/07 35.70 33.85
5,586.49 08/14/07 37.74 35.89
5,586.68 10/10/07 37.55 35.70
5,587.76 03/26/08 36.47 34.62
5,587.59 06/24/08 36.64 34.79
5,587.35 08/26/08 36.88 35.03
5,586.84 10/14/08 37.39 35.54
5,586.17 03/03/09 38.06 36.21
5,585.74 06/24/09 38.49 36.64
5,585.54 09/10/09 38.69 36.84
5,585.77 12/11/09 38.46 36.61
5,585.88 03/11/10 38.35 36.50
5,586.35 05/11/10 37.88 36 .03
5,585.68 09/29/10 38.55 36.70
5,585.09 12/21/10 39.14 37.29
5,584 .65 02/28/11 39.58 37.73
5,584.76 06/21/11 39.47 37.62
5,584.32 09/20/11 39.91 38.06
5,584.22 12/21/11 40.01 38.16
5,577.07 03/27/12 47.16 45.31
5,577.05 06/28/12 47.18 45.33
5,583.14 09/27/12 41.09 39.24
5,577.10 12/28/12 47.13 45.28
5,582.71 03/28/13 41.52 39.67
5,582.25 06/27/13 41.98 40 .13
5,582.24 09/27/13 41.99 40.14
5,582.12 12/20/13 42.11 40.26
5,581.67 03/27/14 42.56 40.71
5,581.03 06/25/14 43.20 41.35
5,580.49 09/25/14 43.74 41.89
5,580.33 12/17/14 43.90 42.05
5,579.28 03/26/15 44.95 43.10
5,579.23 06/22/15 45.00 43.15
5,578.87 09/30/15 45.36 43.51
5,578.53 12/02/15 45.70 43.85
5,578.53 03/30/16 45.70 43 .85
5,578.03 06/30/16 46.20 44.35
5,577.54 09/29/16 46.69 44.84
5,577.27 12/21/16 46.96 45.11
5,577.00 03/30/17 47.23 45.38
5,576.59 06/27/17 47.64 45.79
5,576.00 09/28/17 48.23 46.38
5,575.27 11/29/17 48.96 47.11
Water Levels and Data over Time
White Mesa Mill -Well TW 4-12
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,622.38 5 624.23 1.85 103.2
5,573.64 03/28/18 50.59 48.74
5,572.58 06/22/18 51.65 49.80
5,571.91 09/25/18 52.32 50.47
5,571.49 12/17/18 52 .74 50.89
5,570.77 03/25/19 53.46 51.61
5,570.78 06/24/19 53.45 51.60
5,570 .54 08/12/19 53.69 51.84
5,570.06 11/18/19 54.17 52.32
5,570.02 02/10/20 54.21 52.36
5,569.45 05/04/20 54.78 52.93
5,569.03 09/22/20 55.20 53.35
5,568.91 12/30/20 55.32 53.47
5,568.99 03/11/21 55.24 53.39
5,568.44 06/24/21 55.79 53 .94
5,568.35 08/13/21 55.88 54.03
5,568.70 12/30/21 55.53 53.68
5,567.90 02/10/22 56.33 54.48
5,568.45 06/28/22 55.78 53.93
5,567.92 08/15/22 56.31 54.46
5,567.68 11/17/22 56.55 54.70
5,567.92 03/24/23 56.31 54.46
5,567 .53 06/26/23 56.70 54.85
5,567.19 09/28/23 57.04 55.19
5,567.42 11/20/23 56.81 54.96
5,566.88 03/26/24 57.35 55 .5
5,566.73 06/26/24 57.5 55.65
...,,
'O
...,,
.;..
Depth Below Measuring Point (ft.)
.;..
'O
.;.. .;.. w
'O
w .;..
08/23/02
08/23/03
08/23/04
08/23/05
08/23/06
08/23/07
08/23/08 ~ ~
""' 08/23/09 I
~
N
08/23/10 ~ -('D
'"I
08/23/11 t::;
('D
"= -=-08/23/12 i
('D
'"I
08/23/13 ~ a·
('D
08/23/14 -?
r::1'
08/23/15 -a "= -08/23/16
08/23/17
08/23/18
08/23/19
08/23/20
08/23/21
08/23/22
08/23/23
08/23/24
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) (L D) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,6 18.09 5,619.94 1.85 105.7
5,529 .66 08/23 /02 90.28 88.43
5,530.66 09/11/02 89.28 87.43
5,529.10 10/23/02 90.84 88.99
5,530.58 11/22/02 89.36 87.51
5,530.61 12/03 /02 89 .33 87.48
5,529.74 01/09/03 90.20 88.35
5,531.03 02/12/03 88.91 87.06
5,531.82 03/26/03 88.12 86.27
5,524.63 04/02/03 95.31 93.46
5,531.54 05/01/03 88.40 86.55
5,538.46 06/09/03 81.48 79.63
5,539.38 07/07/03 80.56 78.71
5,540.72 08/04/03 79.22 77.37
5,541.25 09/11/03 78.69 76.84
5,541.34 10/02/03 78.60 76.75
5,541.69 11/07/03 78.25 76.40
5,541.91 12/03/03 78.03 76.18
5,542.44 01/15/04 77.50 75.65
5,542.47 02/10/04 77.47 75.62
5,542.84 03/28/04 77.10 75.25
5,543.08 04/12/04 76.86 75.01
5,543.34 05/13/04 76.60 74.75
5,543.40 06/18/04 76.54 74.69
5,544.06 07/28/04 75.88 74.03
5,544.61 08/30/04 75.33 73.48
5,545.23 09/16/04 74.71 72.86
5,546.20 10/11/04 73.74 71.89
5,547.43 11/16/04 72.51 70 .66
5,548.96 12/22/04 70.98 69.13
5,549.02 01/18/05 70.92 69.07
5,550 .66 02/28/05 69.28 67.43
5,551.26 03/15/05 68.68 66.83
5,552.23 04 /26/05 67.71 65.86
5,552 .87 05/24/05 67.07 65.22
5,553.42 06/30/05 66.52 64 .67
5,554.00 07/29/05 65 .94 64.09
5,555.21 09/12/05 64.73 62.88
5,558.13 12/07/05 61.81 59 .96
5,562.93 03/08/06 57.01 55.16
5,564.39 06/13/06 55.55 53 .70
5,562.09 07/18/06 57.85 56.00
5,565.49 11/07/06 54.45 52.60
5,571.08 02/27/07 48.86 47 .01
Water Levels and Data over Time
White Mesa Mill -Well TW 4-13
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,618.09 5,619.94 1.85 105.7
5,570.63 05/02/07 49.31 47.46
5,565.24 08/14/07 54.70 52.85
5,565.83 10/10/07 54.11 52.26
5,569.29 03/26/08 50.65 48.80
5,570.00 06/24/08 49.94 48.09
5,570.41 08/26/08 49.53 47.68
5,570.64 10/14/08 49.30 47.45
5,570.43 03/03/09 49.51 47.66
5,570.56 06/24/09 49.38 47 .53
5,570.42 , 09/10/09 49.52 47.67
5,571.15 12/11/09 48.79 46.94
5,572 .01 03/11/10 47.93 46.08
5,572.88 05/11/10 47.06 45.21
5,573 .17 09/29/10 46.77 44.92
5,573.14 12/21/10 46.80 44.95
5,573.10 02/28/11 46.84 44.99
5,573.75 06/21/11 46.19 44.34
5,573.63 09/20/11 46.31 44.46
5,573.94 12/21/I l 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 06/30116 52.45 50.60
5,566.99 09/29/16 52.95 51.10
5,566.94 12/21/16 53.00 51.15
5,567.24 03/30/17 52.70 50.85
5,566.79 06/27/17 53.15 51.30
5,566.43 09/28/17 53.51 51.66
5,566.28 11/29/17 53.66 51.81
Water Levels and Data over Time
White Mesa Mill -Well TW 4-13
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,618.09 5 619.94 1.85 105.7
5,566.24 03/28/18 53.70 51.85
5,566.03 06/22/18 53.91 52.06
5,565.61 09/25/18 54.33 52.48
5,565.32 12/17/18 54.62 52.77
5,564.78 03/25/19 55.16 53.31
5,564.99 06/24/19 54.95 53.10
5,564 .78 08/12/19 55.16 53.31
5,564.39 11/18/19 55.55 53.70
5,564.39 02/10/20 55.55 53.70
5,563.82 05/04/20 56.12 54.27
5,563.55 09/22/20 56.39 54.54
5,563.51 12/30/20 56.43 54.58
5,563.66 03/11/21 56 .28 54.43
5,563.14 06/24/21 56.80 54.95
5,562.99 08/13/21 56.95 55.10
5,563.28 12/30/21 56.66 54.81
5,562.69 02/10/22 57.25 55.40
5,563.11 06/28/22 56.83 54.98
5,562.34 08/15/22 57.60 55.75
5,562.12 11/17/22 57.82 55.97
5,562.62 03/24/23 57.32 55.47
5,562.24 06/26/23 57.70 55.85
5,561.95 09/28/23 57.99 56.14
5,561.84 11/20/23 58.10 56.25
5,561.68 03/26/24 58.26 56.41
5,561.50 06/26/24 58.44 56.59
_.
0
0
\0
0
00
0
Depth Below Measuring Point (ft.)
-.I
0 °' 0
V,
0
.i:,.
0
08/23/02
08/23/03
08/23/04
08/23/05
08/23/06
08/23/07
08/23/08 ~
~ ~
I
08/23/09 loo',
CM
08/23/10 ~ ;-
~
t:;
08/23/11 ~
"'O -=-
08/23/12 ~
~
~
08/23/13 ~ a·
~
08/23/14 -~
a' -08/23/15 e
"'O -
08/23/16
08/23/17
08/23/18
08/23/19
08/23/20
08/23/21
08/23/22
08/23/23
08/23/24
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) MonHoring {blw.MP) {bhv.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 TW 4-14
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.)
5,522.47 05/02/07 90.30 88.45
5,520.74 08/14/07 92.03 90.l~
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 TW 4-14
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.l
5,534.56 03/28/18 78.21 76.36
5,534.67 06/22/18 78.10 76.25
5,534.75 09/25/18 78.02 76.17
5,534.71 12/17/18 78.06 76.21
5,534.71 03/25/19 78.06 76.21
5,535.04 06/24/19 77.73 75.88
5,535.17 08/12/19 77.60 75.75
5,535.09 11/18/19 77.68 75.83
5,535.31 02/10/20 77.46 75.61
5,535.12 05/04/20 77.65 75.80
5,535.25 09/22/20 77.52 75.67
5,535.54 12/30/20 77.23 75.38
5,535 .55 03/11/21 77.22 75.37
5,535.41 06/24/21 77.36 75.51
5,535.25 08/13/21 77.52 75.67
5,535.65 12/30/21 77.12 75.27
5,535.43 02/10/22 77.34 75.49
5,535.40 06/28/22 77.37 75.52
5,535.37 08/15/22 77.40 75 .55
5,535.26 11/17/22 77.51 75.66
5,535.62 03/24/23 77.15 75.3
5,535.43 06/26/23 77.34 75.49
5,535.41 09/28/23 77.36 75.51
5,535.36 11/20/23 77.41 75.56
5,535.25 03/26/24 77.52 75.67
5,535.11 06/26/24 77.66 75.81
-0
0
'-0
0
"
◄
\
~
I
► ,
◄►
►
◄
►
►
◄
00
0
►
i .
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►
◄
◄
~
◄
-.I
0
Depth Below Measuring Point (ft.)
0\
0
LI\
0 ~ \;.)
0 ~ -0 0
08 /23 /02
08/23/03
08 /23/04
08/23/05
08/23/06
08/23/07
08 /23/08 --3
~ ,,.
08/23 /09 I ... ,,.
08/23/10 ~ s-.,
08/23/11 e,
~
"0 -=-08/23/12 0 < ~ .,
08/23/13 ..,
er
~
08 /23 /14 -?
~
08 /23 /15 9
"0 ._.,
08/23/16
08 /23/17
08/23/18
08 /23/19
08/23/20
08/23/21
08/23 /22
08/23 /23
08 /23/24
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 .1 5 5,625 .45 1.30 12 1.33
5 574.75 08/23/02 50 .7 0 49.4 0
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 02/12/0 3 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) (bl w.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 /1 0/09 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 12/2 1/16 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) (bhv.L D) Well
5,624.15 5,625.45 1.30 121.33
5,547.27 06/24/19 78.18 76.88
5,549.07 08/12/19 76.38 75.08
5,549.15 11/18/19 76.30 75.00
5,552.38 02/13/20 73.07 71.77
5,539.82 05/04/20 85.63 84.33
5,545.34 09/21/20 80.11 78.81
5,551.33 12/28/20 74.12 72.82
5,551.37 03/11/21 74 .08 72.78
5,539.74 06/24/21 85.71 84.41
5,550.05 08/11/21 75.40 74.10
5,539.30 12/30/21 86.15 84.85
5,549.04 02/10/22 76.41 75.11
5,542.23 06/28/22 83.22 81.92
5,551.32 08/15/22 74.13 72.83
5,541.16 11/17/22 84.29 82.99
5,541.12 03/24/23 84.33 83.03
5,536.93 06/27/23 88.52 87.22
5,551.32 09/25/23 74.13 72.83
5,548.70 11/21/23 76.75 75.45
5,540.18 03/25/24 85.27 83.97
5,541.68 06/26/24 83 .77 82.47
-0
0
so
0
00
0
Depth Below Measuring Point (ft.)
-...)
0
C'I
0
Vl
0
.jS.
0
08/23/02
08/23/03
08/23/04
08/23/05
08/23/06
08/23/07
08/23/08 ~
N
08/23/09 O'\
~
08/23/10 .-+-tD
"'I
~
tD
08/23/11 "O .-+-=-
08/23/12
0 < tD
"'I
..;i
08/23/13 s·
tD -08/23/14 ?
i:::r
08/23/15 a
"O
'-'
08/23/16
08/23/17
08/23/18
08/23/19
08/23/20
08/23/21
08/23/22
08/23/23
08/23/24
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) (bhv.LSD) Well
5 625 .28 5,628.65 3.37 147.6
5 562.91 08/23/02 61.11 57.74
5,563.45 09/11/02 60.57 57.20
5,563.75 10/23/02 60.27 56.90
5,563.68 11/22/02 60.34 56.97
5,563.68 12/03/02 60.34 56.97
5,564.16 01/09/03 59.86 56.49
5,564.25 02/12/03 59.77 56.40
5,564.53 03/26/03 59.49 56.12
5,564.46 04/02/03 59.56 56.19
5,564.79 05/01/03 59.23 55.86
5,564.31 06/09/03 59 .71 56.34
5,563.29 07/07/03 60.73 57.36
5,562.76 08/04/03 61.26 57.89
5,561.73 09/11/03 62.29 58.92
5,561.04 10/02/03 62.98 59.61
5,560.39 11/07/03 63.63 60.26
5,559.79 12/03/03 64.23 60.86
5,561.02 01/15/04 63.00 59.63
5,561.75 02/10/04 62.27 58.90
5,562.98 03/28/04 61.04 57.67
5,563.29 04/12/04 60.73 57.36
5,564.03 05/13/04 59.99 56.62
5,564.09 06/18/04 59.93 56.56
5,565.08 07/28/04 58.94 55.57
5,564.56 08/30/04 59.46 56.09
5,563.55 09/16/04 60.47 57.10
5,561.79 10/11/04 62.23 58.86
5,560.38 11/16/04 63.64 60.27
5,559.71 12/22/04 64.31 60.94
5,559.14 01/18/05 64.88 61.51
5,558.65 02/28/05 65.37 62.00
5,558.54 03/15/05 65.48 62.11
5,558.22 04/26/05 65.80 62.43
5,558.54 05/24/05 65.48 62.11
5,559.24 06/30/05 64.78 61.41
5,559.38 07/29/05 64.64 61.27
5,559.23 09/12/05 64.79 61.42
5,557.67 12/07/05 66.35 62.98
5,557.92 03/08/06 66.10 62.73
5,558.47 06/13/06 65.55 62.18
5,558.42 07/18/06 65.60 62.23
5,558.09 11/07/06 65.93 62.56
5,557.34 02/27/07 66.68 63.31
Water Levels and Data over Time
White Mesa Mill-Well TW4-16
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,625.28 5,628.65 3.37 147.6
5,547.11 05/02/07 76.91 73.54
5,558.52 08/14/07 65.50 62.13
5,559.02 10/10/07 65.00 61.63
5,561.04 03/26/08 62.98 59.61
5,560.06 06/24/08 63.96 60.59
5,559.32 08/26/08 64.70 61.33
5,558.89 10/14/08 65.13 61.76
5,558.40 03/03/09 65.62 62.25
5,558.32 06/24/09 65.70 62.33
5,558.03 09/10/09 65.99 62.62
5,558.81 12/11/09 65.21 61.84
5,559.80 03/11/10 64.22 60.85
5,559.85 05/11/10 64.17 60.80
5,560.54 09/29/10 63.48 60.11
5,558.65 12/21/10 65.37 62.00
5,559.26 02/28/11 64.76 61.39
5,560.48 06/21/11 63.54 60.17
5,561.52 09/20/l l 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/l 7 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 11/18/19 71.75 68.38
5,556.65 02/10/20 72.00 68.63
5,556.25 05/04/20 72.40 69.03
5,555.53 09/22/20 73.12 69.75
5,555.37 12/30/20 73.28 69.91
5,555.38 03/11/21 73.27 69.9
5,554.94 06/24/21 73.71 70.34
5,554.95 08/13/21 73.70 70.33
5,555.23 12/30/21 73.42 70.05
5,554.68 02/10/22 73.97 70.60
5,554.93 06/28/22 73.72 70.35
5,554.47 08/15/22 74.18 70.81
5,554.26 11/17/22 74.39 71.02
5,553.79 03/24/23 74.86 71.49
5,553.80 06/26/23 74.85 71.48
5,553.75 09/28/23 74.90 71.53
5,553.75 11/20/23 74.9 71.53
5,553.70 03/26/24 74.95 71.58
5,553.60 06/26/24 75.05 71.68
Depth Below Measuring Point (ft.)
00 00 --..J --..J 0\ 0\ V, V,
V, 0 V, 0 V, 0 V, 0
08/23/02
08/23/03
08/23/04
08/23/05
08/23/06
08/23/07
08/23/08 ~
08/23/09 ~
.i..
I
~
08/23/10 °' ~
08/23/11 ......
~ .,
08/23/12 ~
~
"'C ......
-08/23/13 =-
0
08/23/14 < ~ .,
-08/23/15 ~ ... = ~
08/23/16 -~
-08/23/17 C"' -= 08/23/18 "'C --
-08/23/19
08/23/20
08/23/21
-08/23/22
-08/23/23
-08/23/24
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 . .L D) 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
(W L) (LSD) (MP) Riser (L) Mollitorin g (b.lw.MP) (blw.LSD) Well
5,623.41 5,625.24 1.8 3 130.6
5,546.19 03/29/18 79.05 77.22
5,545.99 06/22/18 79.25 77.42
5,545.57 09/26/18 79.67 77.84
5,545.56 12/17/18 79.68 77.85
5,545.08 03/26/19 80.16 78.33
5,544.99 06/24/19 80.25 78.42
5,544.87 08/12/19 80.37 78.54
5,544.70 11/19/19 80.54 78.71
5,544.57 02/13/20 80.67 78.84
5,544.99 05/05/20 80.25 78.42
5,543.69 09/22/20 81.55 79.72
5,543.67 12/30/20 81.57 79.74
5,543.64 03/11/21 81.60 79.77
5,543.20 06/24/21 82.04 80.21
5,543.06 08/11/21 82.18 80.35
5,543.37 12/30/21 81.87 80.04
5,542.66 02/10/22 82.58 80.75
5,542.36 06/28/22 82.88 81.05
5,542.44 08/15/22 82.80 80.97
5,542.31 11/17/22 82.93 81.10
5,542.38 03/24/23 82.86 81.03
5,542.39 06/27/23 82.85 81.02
5,541.79 09/28/23 83.45 81.62
5,541.46 11/21/23 83.78 81.95
5,541.63 03/26/24 83.61 81.78
5,543.37 06/26/24 81.87 80.04
00
0\
00
+'-
Depth Below Measuring Point (ft.)
00
N
00
0
-.J
00
-.J
0\
-.J
+'-
-.J
N
-.J 0\
0 00
08/23/02
08/23/03
08/23/04
08/23/05
08/23/06
08/23/07
08/23/08 ~
08/23/09 ~
(.H
-08/23/10 N
~ 08/23/11 .....
~
'"'I
08/23/12 t::,
~
08/23/13 "C ..... =-
08/23/14 0 < ~
'"'I
-08/23/15 ~ ...
-08/23/16 e
~ --08/23/17 ?
C"' --08/23/18 e
"C --08/23/19
-08/23/20
-08/23/21
-08/23/22
-08/23/23
08/23/24
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
5,585.13 08/23/02 56.15 54.00
5,585.41 09/11/02 55.87 53.72
5,585.47 10/23/02 55.81 53.66
5,585.40 11/22/02 55.88 53.73
5,585.68 12/03/02 55.60 53.45
5,585.90 01/09/03 55.38 53.23
5,590.79 02/12/03 50.49 48.34
5,586.18 03/26/03 55.10 52.95
5,586.36 04/02/03 54.92 52.77
5,586.24 05/01/03 55.04 52.89
5,584.93 06/09/03 56.35 54.20
5,584.46 07/07/03 56.82 54.67
5,584.55 08/04/03 56.73 54.58
5,584.01 09/11/03 57.27 55.12
5,583.67 10/02/03 57.61 55.46
5,583.50 11/07 /03 57.78 55.63
5,584.08 12/03/03 57.20 55.05
5,585.45 01/15/04 55.83 53.68
5,585.66 02/10/04 55.62 53.47
5,586.13 03/28/04 55.15 53.00
5,586.39 04/12/04 54.89 52.74
5,586.66 05/13/04 54.62 52.47
5,586.77 06/18/04 54.51 52.36
5,587.35 07/28/04 53.93 51.78
5,586.34 08/30/04 54.94 52.79
5,585.85 09/16/04 55.43 53.28
5,585.22 10/11/04 56.06 53.91
5,584.70 11/16/04 56.58 54.43
5,584.81 12/22/04 56.47 54.32
5,584.68 01/18/05 56.60 54.45
5,585.02 02/28/05 56.26 54.11
5,585.25 03/15/05 56.03 53.88
5,586.31 04/26/05 54.97 52.82
5,586.97 05/24/05 54.31 52.16
5,586.58 06/30/05 54.70 52.55
5,586.10 07/29/05 55.18 53.03
5,586.05 09/12/05 55.23 53.08
5,585.86 12/07/05 55.42 53.27
5,587.13 03/08/06 54.15 52.00
5,585.93 06/13/06 55.35 53.20
5,585.40 07/18/06 55.88 53.73
5,585.38 11/07/06 55.90 53.75
5,585.83 02/27/07 55.45 53.30
Water Levels and Data over Time
White Mesa Mill -Well TW 4-18
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (bhv.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 05/11/10 57.11 54.96
5,583.61 09/29/10 57.67 55.52
5,604.29 12/21/10 36.99 34.84
5,583.56 02/28/11 57.72 55.57
5,584.73 06/21/11 56.55 54.40
5,584.71 09/20/11 56.57 54.42
5,585.03 12/21/11 56.25 54.10
5,584.63 03/27/12 56.65 54.50
5,584.67 06/28/12 56.61 54.46
5,583.98 09/27/12 57.30 55.15
5,584.65 12/28/12 56.63 54.48
5,582.88 03/28/13 58.40 56.25
5,584.63 06/27/13 56.65 54.50
5,581.38 09/27/13 59.90 57.75
5,579.71 12/20/13 61.57 59.42
5,579.26 03/27/14 62.02 59.87
5,577.73 06/25/14 63.55 61.40
5,576.79 09/25/14 64.49 62.34
5,577.11 12/17/14 64.17 62.02
5,577.18 03/26/15 64.10 61.95
5,577.13 06/22/15 64.15 62.00
5,576.63 09/30/15 64.65 62.50
5,576.20 12/02/15 65.08 62.93
5,576.05 03/30/16 65.23 63.08
5,575.35 06/30/16 65.93 63.78
5,575.02 09/29/16 66.26 64.11
5,574.34 12/21/16 66.94 64.79
5,574.73 03/30/17 66.55 64.40
5,574.13 06/27/17 67.15 65.00
5,573.51 09/28/17 67.77 65.62
5,572.93 11/29/17 68.35 66.20
5,572.51 03/29/18 68.77 66.62
5,572.28 06/22/18 69.00 66.85
5,571.72 09/26/18 69.56 67.41
Water Levels and Data over Time
White Mesa Mill-Well 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
5,567.35 08/15/22 73.93 71.78
5,567.22 11/17/22 74.06 71.91
5,566.81 03/24/23 74.47 72.32
5,566.79 06/26/23 74.49 72.34
5,566.76 09/28/23 74.52 72.37
5,566.83 11/20/23 74.45 72.30
5,566.81 03/26/24 74.47 72.32
5,566.26 06/26/24 75.02 72.87
Depth Below Measuring Point (ft.)
00 -.J 0\ V, ~ w N
0 0 0 0 0 0 0 0 0
08/23/02
08/23/03
08/23/04
08/23/05
08/23/06
08/23/07
08/23/08 ~
08/23/09 ~
""" I
~
08/23/10 00
~ 08/23/11 -('D
"1
08/23/12 c
('D
'"CS
08/23/13 -=-
0
08/23/14 < ('D
"1
08/23/15 ~ .... = 08/23/16 ('D --~
08/23/17 O"' -
08/23/18 = '"CS ,_,
08/23/19
08/23/20
08/23/21
08/23/22
08/23/23
08/23/24
Water Levels and Data over Time
White Mesa Mill -Well TW 4-19
Total or
Measuring Measured
Water Land Point Depth to Total Depth
Elevation Surface Elevation Length Of Date Of Water to Water Total Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5 629.53 5,631.39 1.86 126.86
5,581.88 08/23/02 49 .51 47 .65
5,582.14 09/11/02 49.25 47 .39
5,582.06 10/23/02 49.33 47.47
5,582.07 11/22/02 49.32 47.46
5,582.16 12/03/02 49.23 47 .37
5,582.28 01/09/03 49.11 47.25
5,582.29 02/21/03 49.10 47.24
5,582.74 03/26/03 48.65 46.79
5,582.82 04/02/03 48.57 46.71
5,548.47 05 /01 /03 82.92 81.06
5,564.76 06/09/03 66.63 64 .77
5,562.53 07 /07/03 68.86 67 .00
5,564.10 08/04/03 67.29 65.43
5,566.01 08/30/04 65.38 63.52
5,555.16 09/16/04 76.23 74.37
5,549.80 10/11/04 81.59 79.73
5,546.04 11/16/04 85.35 83.49
5,547.34 12/22/04 84.05 82.19
5,548.77 01/18/05 82.62 80.76
5,551.18 02/28 /05 80.21 78.35
5,556.81 03/15/05 74.58 72.72
5,562.63 04/26/05 68.76 66.90
5,573.42 05/24/05 57.97 56.11
5,552.94 07/29/05 78.45 76.59
5,554.00 09/12/05 77.39 75.53
5,555.98 12/07/05 75.41 73.55
5,552.00 03/08/06 79.39 77.53
5,545.74 06/13/06 85.65 83.79
5,544.06 07/18/06 87.33 85.47
5,548.81 11/07/06 82.58 80 .72
5,543.59 02/27/07 87.80 85.94
5,544.55 05/02/07 86.84 84.98
5,558.97 08/15 /07 72.42 70 .56
5,559.73 10/10/07 71.66 69.8
5,569.26 03/26/08 62.13 60.27
5,535.47 06/25/08 95.92 94 .06
5,541.41 08/26/08 89.98 88.12
5,558.45 10/14/08 72.94 71.08
5,536.90 03/03/09 94.49 92.63
5,547 .76 06/24/09 83.63 81.77
5,561.48 09/10/09 69 .91 68 .05
5,548.14 12/11/09 83.25 81.39
5,570.58 03 /11/10 60.81 58.95
Water Levels and Data over Time
White Mesa Mill-Well TW4-19
Total or
Measuring Measured
Water Land Point Depth to Total Depth
Elevation Surface Elevation Length Of Date Of Water to Water Total Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,629.53 5,631.39 1.86 126.86
5,561.35 05/11/10 70.04 68.18
5,535.26 09/29/10 96.13 94.27
5,568.40 12/21/10 62.99 61.13
5,550.36 02/28/11 81.03 79.17
5,570.41 06/21/11 60.98 59.12
5,567.84 09/20/11 63.55 61.69
5,571.32 12/21/11 60.07 58.21
5,572.40 03/27/12 58.99 57.13
5,572.39 06/28/12 59.00 57.14
5,571.40 09/27/12 59.99 58.13
5,568.21 12/28/12 63.18 61.32
5,572.51 03/28/13 58.88 57.02
5,566.00 06/27/13 65.39 63.53
5,568.37 09/27/13 63.02 61.16
5,564.55 12/20/13 66.84 64.98
5,565.11 03/27/14 66.28 64.42
5,561.49 06/25/14 69.90 68.04
5,562.67 09/25/14 68.72 66.86
5,562.99 12/17/14 68.40 66.54
5,567.99 03/26/15 63.40 61.54
5,562.79 06/22/15 68.60 66.74
5,568.16 09/30/15 63.23 61.37
5,567.51 12/02/15 63.88 62.02
5,566.38 03/30/16 65.01 63.15
5,566.91 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 06/2 8/22 72.17 70.31
5,557.94 08/15 /22 73.45 71.59
5,559.35 11/17/22 72.04 70.18
5,557.32 03 /24/23 74.07 72.21
5,561.29 06/26/23 70.10 68 .24
5,559.21 09/25/23 72 .18 70 .32
5,544 .73 1 1/20/23 86.66 84.80
5,557.41 03 /25 /24 73.98 72.12
5,556.50 06 /26/24 74.89 73.03
Depth Below Measuring Point (ft.)
0 \0 00 -..J 0\ V, ~
0 0 0 0 0 0 0
08/23/02
08/23/03
08/23/04
08/23/05
08/23/06
08/23/07
08/23/08 ""'3
~
08/23/09 t,-
i,,..
08/23/10 ~
08/23/11 ;--.,
08/23/12 ~
~
"C
08/23/13 e,
08/23/14 9
~ .,
08/23/15 ,-;i -·
08/23/16 ! -08/23/17 ~
C"' -08123118 a
"C ._.,
08/23/19
08/23/20
08/23/21
08/23/22
08/23/23
08/23/24
Water Levels and Data over Time
White Mesa Mill-Well TW4-21
Total or
Measuring Measured Total
Water Land Point Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,638.20 5,639.35 1.15 I 18.8
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 Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,638.20 5,639.35 l.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.l8 70 .03
5,567.50 09/24/18 71.85 70.70
5,554.80 12/17/18 84.55 83.40
5,560.92 03/25/19 78.43 77.28
5,561.49 06/24/19 77.86 76.71
5,564.17 08/12/19 75.18 74.03
5,555.91 11/18/19 83.44 82 .29
5,561.05 02/10/20 78.30 77.15
5,567.23 05 /04/20 72.12 70.97
5,566.29 09/21/20 73.06 71.91
5,562.48 12/28/20 76.87 75.72
5,568.64 03/11/21 70.71 69.56
5,564.50 06/24/21 74.85 73.70
5,567.02 08/13/21 72.33 71.18
5,563.30 12/30/21 76.05 74.90
5,567.61 02/10/22 71.74 70.59
5,567.20 06/28/22 72.15 71.00
5,563.51 08/15/22 75.84 74.69
5,567.10 11/17/22 72.25 71.10
5,562.38 03/24/23 76.97 75 .82
5,561.05 06/26/23 78.30 77 .15
5,567.18 09/25/23 72.17 71.02
5,562.49 11/20/23 76.86 75.71
5,564.47 03/25/24 74.88 73 .73
5,563.00 06/26/24 76.35 75.20
'° 0
00
0
Depth Below Measuring Point (ft.)
-..J
0
0\
0
V,
0
.i:,.
0
(.;.)
0
N
0
......
0 0
L 07/29/05
07/29/06
07/29/07
07/29/08
07/29/09
07/29/10
07/29/11
07/29/12
07/29/13
07/29/14
07/29/15
07/29/16
07/29/17
07/29/18
07/29/19
-07/29/20
07/29/21
-07/29/22
07/29/23
07/29/24
~
~
I
N
""""' ~ ;-.,
~
~
"'C
&t
9
~ .,
~ -· 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
5,571.24 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 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
5,571.24 09/30/15 57.76 56.59
5,568.23 12/02/15 60.77 59.60
5,570.28 03/30/16 58.72 57.55
5,570.75 06/30/16 58.25 57.08
5,544.60 09/29/16 84.40 83.23
5,565.11 12/21/16 63.89 62.72
5,567.99 03/30/17 61.01 59.84
5,569.17 06/27/17 59.83 58.66
5,569.37 09/28/17 59.63 58.46
5,566.48 11/30/17 62.52 61.35
5,568.30 03/28/18 60.70 59.53
5,568.42 06/22/18 60.58 59.41
5,567.98 09/24/18 61.02 59.85
5,553.65 12/17/18 75.35 74.18
5,550.09 03/25/19 78.91 77.74
5,540.65 06/24/19 88.35 87.18
5,557.09 08/12/19 71.91 70.74
5,544.97 11/18/19 84.03 82.86
5,558.05 02/10/20 70.95 69.78
5,558.77 05/04/20 70.23 69.06
5,559.12 09/21/20 69.88 68.71
5,564.70 12/28/20 64.30 63.13
5,560.19 03/11/21 68.81 67.64
5,560.12 06/24/21 68.88 67.71
5,560.80 08/13/21 68.20 67.03
5,562.87 12/30/21 66.13 64.96
5,559.35 02/10/22 69.65 68.48
5,559.49 06/28/22 69.51 68.34
5,548.25 08/15/22 80.75 79.58
5,558.30 11/17/22 70.70 69.53
5,559.30 03/24/23 69.70 68.53
5,560.71 06/26/23 68.29 67.12
5,558.81 09/25/23 70.19 69.02
5,560.55 11/20/23 68.45 67.28
5,558.36 03/25/24 70.64 69.47
5,559.11 06/26/24 69.89 68.72
-Depth Below Measuring Point (ft.)
0 \0 00 --.J 0\ Vl ~ W N -0 0 0 0 0 0 0 0 0 0 0
07/29/05
07/29/06
07/29/07
07/29/08
07/29/09
07/29/10
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07/29/11 ~
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07/29/12 N
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07/29/14 ~
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07/29/19 -a
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07/29/20 ._,
07/29/21
07/29/22
07/29/23
07/29/24
Water Levels and Data over Time
White Mesa Mill -Well TW 4-23
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
5,539.48 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 TW 4-23
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
5,530.84 08/15/22 76.53 74.93
5,530.58 11/17/22 76.79 75.19
5,530.34 03/24/23 77.03 75.43
5,530.51 06/26/23 76.86 75.26
5,530.20 09/28/23 77.17 75.57
5,530.48 11/20/23 76.89 75.29
5,529.87 03/26/24 77.50 75.9
5,531.13 06/26/24 76.24 74.64
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Water Levels and Data over Time
White Mesa Mill -Well TW 4-24
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
5,571.52 05/30/08 56.31 54.18
5,571.34 06/24/08 56.49 54.36
5,571.28 07/16/08 56.55 54.42
5,571.34 08/26/08 56.49 54.36
5,571.23 09/10/08 56.60 54.47
5,571.12 10/14/08 56.71 54.58
5,570.95 11/26/08 56.88 54.75
5,570.92 12/29/08 56.91 54.78
5,571.65 01/26/09 56.18 54.05
5,571.31 02/24/09 56.52 54.39
5,571.37 03/06/09 56.46 54.33
5,571.21 04/07/09 56.62 54.49
5,571.23 05/29/09 56.60 54.47
5,571.42 06/30/09 56.41 54.28
5,571.38 07/31/09 56.45 54.32
5,571.48 08/31/09 56.35 54.22
5,571.28 09/10/09 56.55 54.42
5,571.64 12/11/09 56.19 54.06
5,571.86 03/11/10 55.97 53.84
5,571.91 05/11/10 55.92 53.79
5,572.18 09/29/10 55.65 53.52
5,571.86 12/21/10 55.97 53.84
5,571.78 02/28/11 56.05 53.92
5,572.40 06/21/11 55.43 53.30
5,572.19 09/20/11 55.64 53.51
5,573.02 12/21/11 54.81 52.68
5,573.03 03/27/12 54.80 52.67
5,573.02 06/28/12 54.81 52.68
5,573.13 09/27/12 54.70 52.57
5,573.05 12/28/12 54.78 52.65
5,566.53 03/28/13 61.30 59.17
5,564.63 06/27/13 63.20 61.07
5,570.01 09/27/13 57.82 55.69
5,566.85 12/20/13 60.98 58.85
5,562.33 03/27/14 65.50 63.37
Water Levels and Data over Time
White Mesa Mill-Well TW4-24
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,625 .70 5,627.83 2.13 114.8
5,563.43 06/25/14 64.40 62.27
5,563.43 09/25/14 64.40 62.27
5,560.97 12/17/14 66.86 64.73
5,561.95 03/26/15 65.88 63.75
5,565.38 06/22/15 62.45 60.32
5,562.61 09/30/15 65.22 63.09
5,560.91 12/02/15 66.92 64.79
5,563.69 03/30/16 64.14 62.01
5,565.64 06/30/16 62.19 60.06
5,565.35 09/29/16 62.48 60.35
5,563.33 12/21/16 64.50 62.37
5,565.27 03/30/17 62.56 60.43
5,565.86 06/27/17 61.97 59.84
5,565.21 09/28/17 62.62 60.49
5,559.24 11/30/17 68.59 66.46
5,564.78 03/28/18 63.05 60.92
5,564.83 06/22/18 63.00 60.87
5,565.47 09/24/18 62.36 60.23
5,549.72 12/17/18 78.11 75.98
5,559.52 03/25/19 68.31 66.18
5,546.68 06/24/19 81.15 79 .02
5,549.54 08/12/19 78.29 76.16
5,554.44 11/18/19 73.39 71.26
5,563.62 02/10/20 64.21 62.08
5,558.32 05/04/20 69.51 67.38
5,558.88 09/21/20 68.95 66.82
5,556.76 12/28/20 71.07 68.94
5,557.89 03/11/21 69.94 67.81
5,561.51 06/24/21 66.32 64.19
5,559.12 08/13/21 68.71 66.58
5,560.64 12/30/21 67.19 65.06
5,556.44 02/10/22 71.39 69.26
5,558.22 06/28/22 69.61 67.48
5,558.62 08/15/22 69.21 67.08
5,558.14 11/17/22 69.69 67.56
5,560.03 03/24/23 67.80 65.67
5,560.22 06/26/23 67.61 65.48
5,558.57 09/25/23 69.26 67.13
5,559.92 11/20/23 67.91 65.78
5,556.45 03/25/24 71.38 69.25
5,558.98 06/26/24 68.85 66.72
'-0
0
0
Depth Below Measuring Point r ft.)
00 -.J O'I VI .j:::,. '(;j N
0 0 0 0 0 0 0 o o o o o o o -0 0
0 0
1------l---+---+-4---!---+----l----+--+---+09/13/07
09/13/08
09/13/09
09/13/10
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09/13/12 ~
~
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09/13/18 5!
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09/13/21
09/13/22
09/13/23
09/13/24
Water Levels and Data over Time
White Mesa Mill -Well TW 4-25
Total or
Water Measuring Measured Total
Elevation Land Point Depth to Depth to Total
(WL) Surface Elevation Length Of Date Of Water Water Depth Of
(LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,642.82 5,644.91 2.09 136.7
5,601.86 09/13/07 43.05 40.96
5,601.89 10/10/07 43.02 40.93
5,602.57 11/30/07 42.34 40.25
5,602.82 12/11/07 42.09 40.00
5,601.94 01/08/08 42.97 40.88
5,599.13 02/18/08 45.78 43.69
5,597.11 03/26/08 47.80 45.71
5,595.51 04/23/08 49.40 47.31
5,594.42 05/30/08 50.49 48.40
5,594.26 06/24/08 50.65 48.56
5,586.67 07/16/08 58.24 56.15
5,594.17 08/26/08 50.74 48.65
5,594.23 09 /10/08 50.68 48.59
5,594.12 10/14/08 50.79 48.70
5,594.06 11/26/08 50.85 48.76
5,594.87 12/29/08 50.04 47.95
5,595.89 01/26/09 49.02 46.93
5,596.27 02/24/09 48.64 46.55
5,596.47 03 /06/09 48.44 46.35
5,596.74 04/07/09 48 .17 46 .08
5,597.55 05/29/09 47.36 45.27
5,598.11 06 /30/09 46.80 44.71
5,598.22 07/31/09 46.69 44.60
5,598.52 08/31/09 46.39 44.30
5,598.49 09/10/09 46.42 44.33
5,599.48 12/11/09 45.43 43.34
5,599.75 03/11/10 45.16 43.07
5,599.63 05/11/10 45.28 43.19
5,598.68 09/29/10 46.23 44.14
5,598.66 12/21/10 46.25 44.16
5,598.18 02/28/11 46.73 44.64
5,598.61 06/21/11 46.30 44.21
5,598.08 09/20/11 46.83 44.74
5,598.23 12/21/11 46.68 44.59
5,597.41 03/27/12 47.50 45.41
5,597.41 06/28/12 47.50 45.41
5,595.60 09/27/12 49.31 47.22
5,597.41 12/28/12 47.50 45.41
5,597.43 03/28/13 47.48 45.39
5,587.61 06/27/13 57.30 55.21
5,585.91 09/27/13 59.00 56.91
5,561.00 12/20/13 83.91 81.82
Water Levels and Data over Time
White Mesa Mill -Well TW 4-25
Total or
Water Measuring Measured Total
Elevation Land Point Depth to Depth to Total
(WL) Surface Elevation Length Of Date Of Water Water Depth Of
(LSD) (MP) Riser (L) Monitoring (bJw.MP) (blw.LSD) Well
5 642 .82 5 644 .91 2.09 136.7
5,584.79 03/27/14 60.12 58.03
5,582.44 06/25/14 62.47 60.38
5,583.95 09/25/14 60.96 58.87
5,581.13 12/17/14 63.78 61.69
5,587.40 03/26/15 57.51 55.42
5,581.91 06/22/15 63.00 60.91
5,581.40 09/30/15 63.51 61.42
5,578.42 12/02/15 66.49 64.40
5,579.42 03/30/16 65.49 63.40
5,579.25 06/30/16 65.66 63.57
5,579.68 09/29/16 65.23 63.14
5,577.73 12/21/16 67.18 65.09
5,584.44 03/30/17 60.47 58.38
5,580.19 06/27/17 64.72 62.63
5,573.63 09/28/17 71.28 69.19
5,577.88 11/30/17 67.03 64.94
5,543.71 03/28/18 101.20 99.11
5,575.26 06/22/18 69.65 67.56
5,578.78 09/24/18 66.13 64.04
5,567.86 12/17/18 77.05 74.96
5,572.46 03/25/19 72.45 70.36
5,571.58 06/24/19 73.33 71.24
5,572.15 08/12/19 72.76 70.67
5,572.66 11/18/19 72.25 70.16
5,572.77 02/10/20 72.14 70.05
5,572.46 05/04/20 72.45 70.36
5,575.17 09/21/20 69.74 67.65
5,574.42 12/28/20 70.49 68.40
5,574.90 03/11/21 70.01 67.92
5,575.01 06/24/21 69.90 67.81
5,575.66 08/13/21 69.25 67.16
5,578.11 12/30/21 66.80 64.71
5,578.07 02/10/22 66.84 64.75
5,574.87 06/28/22 70.04 67.95
5,574.46 08/15/22 70.45 68.36
5,574.96 11/17/22 69.95 67.86
5,574.82 03/24/23 70.09 68.00
5,573.09 06/26/23 71.82 69.73
5,575.23 09/25/23 69.68 67.59
5,573.44 11/20/23 71.47 69.38
5,572.90 03/25/24 72.01 69.92
5,570.79 06/26/24 74.12 72.03
-Depth Below Measuring Point (ft.) -tv 0 00 0\ .j::,. tv
0 0 0 0 0 0 0
09/13/07
09/13/08
09/13/09
09/13/10
09/13/11
09/13/12 ~
~
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I
09/13/13 N u-.
09/13/14 ~ ......
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09/13/15 ~
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09/13/17 ~ ..,
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09/13/18 9
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09/13/l 9 ~
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09/13/20 ~
09/13/21
09/13/22
09/13/23
09/13/24
Water Levels and Data over Time
White Mesa Mill -Well TW 4-26
Total or
Measuring Measured Tota l
Water Land Point Date Of Dcptb to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,599.98 5,601.68 1.70 87.7
5,536.90 06/14/10 64.78 63.08
5,536.95 09/29/10 64.73 63.03
5,537.17 12/21/10 64.51 62.81
5,537.16 02/28/11 64.52 62.82
5,537.57 06/21/11 64.11 62.41
5,537.59 09/20/11 64.09 62.39
5,538.16 12/21/11 63.52 61.82
5,538.18 03/27/12 63.50 61.80
5538.23 06/28/12 63.45 61.75
5,538.57 09/27/12 63.11 61.41
5,538.20 12/28/12 63.48 61.78
5,539.13 03/28/13 62.55 60.85
5,539.00 06/27/13 62.68 60.98
5,538.94 09/27/13 62.74 61.04
5,538.97 12/20/13 62.71 61.01
5,538.53 03/27/14 63.15 61.45
5,537.85 06/25/14 63.83 62.13
5,537.33 09/25/14 64.35 62.65
5,537.14 12/17/14 64.54 62.84
5,536.43 03/26/15 65.25 63.55
5,536.16 06/22/15 65.52 63.82
5,535.76 09/30/15 65.92 64.22
5,535.23 12/02/15 66.45 64.75
5,535.15 03/30/16 66.53 64.83
5,534.61 06/30/16 67.07 65.37
5,534.12 09/29/16 67.56 65.86
5,533.96 12/21/16 67.72 66.02
5,533.97 03/30/17 67.71 66.01
5,533.66 06/27/17 68.02 66.32
5,533.43 09/28/17 68.25 66.55
5,533.39 11/30/17 68.29 66.59
5,532.99 03/28/18 68.69 66.99
5,532.74 06/22/18 68.94 67.24
5,532.32 09/25/18 69.36 67.66
5,532.04 12/17/18 69.64 67.94
5,531.48 03/25/19 70.20 68.50
5,531.20 06/24/19 70.48 68.78
5,530.96 08/12/19 70.72 69.02
5,530.14 11/18/19 71.54 69.84
5,529.73 02/10/20 71.95 70.25
5,529.08 05/04/20 72.60 70.90
5,528.48 09/22/20 73.20 71.50
5,528.42 12/30/20 73.26 71.56
5,528.39 03/11/21 73.29 71.59
Water Levels and Data over Time
White Mesa Mill -Well TW 4-26
Total or
Measuring Measured Total
Water Land Point Date Of Depth to Depth to Total
Elevation Surface Elevation Length Of Monitoring Water Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,599.98 5,601.68 1.70 87.7
5,527.76 06/24/21 73.92 72.22
5,527.73 08/13/21 73.95 72.25
5,527.80 12/30/21 73.88 72.18
5,527.26 02/10/22 74.42 72.72
5,527.73 06/28/22 73.95 72.25
5,526.86 08/15/22 74.82 73.12
5,526.62 11/17/22 75.06 73.36
5,526.45 03/24/23 75.23 73.53
5,526.35 06/26/23 75.33 73.63
5,525.89 09/28/23 75.79 74.09
5,526.33 11/20/23 75.35 73.65
5,525.75 03/26/24 75.93 74.23
5,525.49 06/26/24 76.19 74.49
00
0
0
0
Depth Below Measuring Point (ft.)
--.J O'I v, .i::;; W N
0 0 0 0 0 0 o o o o o o
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06/01/11
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06/01/20 !2: = "C -06/01/21
06/01/22
06/01/23
06/01/24
06/01/25
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.L D) 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/l 7 79.09 77.34
5,528.81 06/27/17 79.13 77.38
5,528.84 09/28/17 79.10 77.35
5,528.85 11/29/17 79.09 77.34
5,529.14 03/28/18 78.80 77.05
5,529.06 06/21/18 78.88 77.13
5,529.18 09/25/18 78.76 77.01
5,529.09 12/17/18 78.85 77.10
5,528.96 03/25/19 78.98 77.23
5,529.20 06/24/19 78.74 76.99
5,529.24 08/12/19 78.70 76.95
5,529.12 11/18/19 78.82 77.07
5,529.29 02/10/20 78.65 76.90
5,528.97 05/04/20 78.97 77.22
5,528.89 09/22/20 79.05 77.30
5,529.12 12/30/20 78.82 77.07
5,529.21 03/11/21 78.73 76.98
5,528.90 06/24/21 79.04 77.29
5,528.76 08/13/21 79.18 77.43
5,529.06 12/30/21 78.88 77.13
5,528.79 02/10/22 79.15 77.40
5,528.85 06/28/22 79.09 77.34
5,528.69 08/15/22 79.25 77.50
5,528.49 11/17/22 79.45 77.70
5,528.49 03/24/23 79.45 77.70
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) (LS D) (MP) Riser (L) Moni toring (blw.MP) (bl w.LSD) Well
5,606.19 5,607.94 1.75 95 .75
5,528 .69 06 /26 /23 79.25 77.50
5,528.55 09/28 /23 79.39 77 .64
5,528.73 11/20/23 79.21 77.46
5,528.39 03 /26 /24 79.55 77 .80
5 ,528.26 06/2 6/24 79.68 77.93
I.O
N
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00
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12/01/22
12/01/23
12/01/24
Water Levels and Data over Time
White Mesa Mill -Well TW 4-28
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,613.52 5,617.00 3.48 108.48
5,580.69 03/28/13 36.31 32.83
5,580.30 06/27/13 36.70 33.22
5,580.35 09/27/13 36.65 33.17
5,580.25 12/20/13 36.75 33.27
5,579.83 03/27/14 37.17 33.69
5,579.21 06/25/14 37.79 34.31
5,578.84 09/25/14 38.16 34.68
5,578.72 12/17/14 38.28 34.80
5,578.11 03/26/15 38.89 35.41
5,577.83 06/22/15 39.17 35.69
5,577.56 09/30/15 39.44 35.96
5,577.27 12/02/15 39.73 36.25
5,577.25 03/30/16 39.75 36.27
5,576.75 06/30/16 40.25 36.77
5,576.36 09/29/16 40.64 37.16
5,576.13 12/21/16 40.87 37.39
5,575.92 03/30/17 41.08 37.60
5,575.50 06/27/17 41.50 38.02
5,575.08 09/28/17 41.92 38.44
5,574.80 11/29/17 42.20 38.72
5,574.36 03/28/18 42.64 39.16
5,573.92 06/22/18 43.08 39.60
5,572.37 09/25/18 44.63 41.15
5,571.74 12/17/18 45.26 41.78
5,570.65 03/25/19 46.35 42.87
5,570.60 06/24/19 46.40 42.92
5,570.24 08/12/19 46.76 43.28
5,569.87 11/18/19 47.13 43.65
5,569.89 02/10/20 47.11 43.63
5,569.01 05/04/20 47.99 44.51
5,568.41 09/22/20 48.59 45.11
5,568.29 12/30/20 48.71 45.23
5,568.32 03/11/21 48.68 45.20
5,567.79 06/24/21 49.21 45.73
5,567.64 08/13/21 49.36 45.88
5,567.89 12/30/21 49.11 45.63
5,567.24 02/10/22 49.76 46.28
5,567.75 06/28/22 49.25 45.77
5,567.73 08/15/22 49.27 45.79
5,567.42 11/17/22 49.58 46.10
5,567.16 03/24/23 49.84 46.36
5,566.74 06/26/23 50.26 46.78
5,566.43 09/28/23 50.57 47.09
Water Levels and Data over Time
White Mesa Mill -Well TW 4-28
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
5,566.61 11/20/23 50.39 46.91
5,566.83 03/26/24 50.17 46.69
5,566.50 06/26/24 50.50 47.02
0\
0
0
0
Vl
0
0
0
Depth Below Measuring Point (ft.)
.j::,. W N
0 0 0 o o o
0 0 0
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0
0
0
0
0
03/01/13
03/01/14
03/01/15
03/01/16
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03/01/21 C"' -= "'CS -
03/01/22
03/01/23
03/01/24
Water Levels and Data over Time
White Mesa Mill -Well TW 4-29
Total or
Measuring Measured
Water Land Point Depth to Total Depth Total
Elevation Surface Elevation Length Of Date Of Water to Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,602.56 5,606.04 3.48 94.48
5,533.98 03/28/13 72.06 68.58
5,533.84 06/27/13 72.20 68.72
5,534.27 09/27/13 71.77 68.29
5,534.43 12/20/13 71.61 68.13
5,534.32 03/27/14 71.72 68.24
5,533.85 06/25/14 72.19 68.71
5,533.53 09/25/14 72.51 69.03
5,533.60 12/17/14 72.44 68.96
5,533.04 03/26/15 73.00 69.52
5,532.93 06/22/15 73.11 69.63
5,532.79 09/30/15 73.25 69.77
5,532.34 12/02/15 73.70 70.22
5,532.54 03/30/16 73.50 70.02
5,532.01 06/30/16 74.03 70.55
5,531.58 09/29/16 74.46 70.98
5,531.49 12/21/16 74.55 71.07
5,531.60 03/30/17 74.44 70.96
5,531.24 06/27/17 74.80 71.32
5,530.95 09/28/17 75.09 71.61
5,530.83 11/29/17 75.21 71.73
5,530.74 03/28/18 75.30 71.82
5,530.54 06/21/18 75.50 72.02
5,530.28 09/25/18 75.76 72.28
5,530.11 12/17/18 75.93 72.45
5,527.99 03/25/19 78.05 74.57
5,529.77 06/24/19 76.27 72.79
5,529.64 08/12/19 76.40 72.92
5,529.23 11/18/19 76.81 73.33
5,529.10 02/10/20 76.94 73.46
5,528.51 05/04/20 77.53 74.05
5,528.21 09/22/20 77.83 74.35
5,528.13 12/30/20 77.91 74.43
5,528.13 03/11/21 77.91 74.43
5,527.67 06/24/21 78.37 74.89
5,527.56 08/13/21 78.48 75.00
5,527.84 12/30/21 78.20 74.72
5,527.28 02/10/22 78.76 75.28
5,527.66 06/28/22 78.38 74.90
5,526.89 08/15/22 79.15 75.67
5,526.68 11/17/22 79.36 75.88
5,526.57 03/24/23 79.47 75.99
5,526.43 06/26/23 79.61 76.13
5,526.36 09/28/23 79.68 76.20
Water Levels and Data over Time
White Mesa Mill -Well TW 4-29
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
5,526 .26 11/20/23 79.78 76.30
5,526.03 03/26/24 80.01 76.53
5,525.86 06/26/24 80.18 76.7
SZ/I0/£0
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Water Levels and Data over Time
White Mesa Mill -Well TW 4-30
Total or
Measurin Measured Total
Water Land g Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,599.33 5,602.81 3.48 93.48
5,524.78 03/28/13 78.03 74.55
5,524.79 06/27/13 78.02 74.54
5,525.54 09/27/13 77.27 73.79
5,525.81 12/20/13 77.00 73.52
5,525.98 03/27/14 76.83 73.35
5,525.91 06/25/14 76.90 73.42
5,526.00 09/25/14 76.81 73.33
5,526.41 12/17/14 76.40 72.92
5,526.23 03/26/15 76.58 73.10
5,526.48 06/22/15 76.33 72.85
5,526.74 09/30/15 76.07 72.59
5,526.56 12/02/15 76.25 72.77
5,527.26 03/30/16 75.55 72.07
5,527.04 06/30/16 75.77 72.29
5,526.97 09/29/16 75.84 72.36
5,527.17 12/21/16 75.64 72.16
5,527.65 03/30/17 75.16 71.68
5,527.54 06/27/17 75.27 71.79
5,527.56 09/28/17 75.25 71.77
5,527.59 11/29/17 75.22 71.74
5,527.88 03/28/18 74.93 71.45
5,527.86 06/21/18 74.95 71.47
5,525.76 09/25/18 77.05 73.57
5,527.87 12/17/18 74.94 71.46
5,527.69 03/25/19 75.12 71.64
5,528.01 06/24/19 74.80 71.32
5,528.04 08/12/19 74.77 71.29
5,527.94 11/18/19 74.87 71.39
5,528.12 02/10/20 74.69 71.21
5,527.73 05/04/20 75.08 71.6
5,527.75 09/22/20 75.06 71.58
5,527.90 12/30/20 74.91 71.43
5,527.96 03/11/21 74.85 71.37
5,527.75 06/24/21 75.06 71.58
5,527.65 08/13/21 75.16 71.68
5,527.88 12/30/21 74.93 71.45
5,527.63 02/10/22 75.18 71.7
5,527.77 06/28/22 75.04 71.56
5,527.50 08/15/22 75.31 71.83
5,527.36 11/17/22 75.45 71.97
5,527.35 03/24/23 75.46 71.98
5,527.50 06/26/23 75.31 71.83
5,527.44 09/28/23 75.37 71.89
5,527.54 11/20/23 75.27 71.79
5,527.27 03/26/24 75.54 72.06
Water Levels and Data over Time
White Mesa Mill -Well TW 4-30
Total or
Measurin Measured Total
Water Land g 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
5,527.13 06/26/24 75.68 72.2
-...]
~
0
0
-...]
00
0
0
Depth Below Measuring Point (ft.)
-...]
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0
0
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0
0
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0
0
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0
0
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03/01/13
03/01/14
03/01/15
03/01/16
03/01/17
03/01/18
03/01/19
03/01/20
03/01/21
03/01/22
,.. 03/01/23
03/01/24
031/01/25
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Water Levels and Data over Time
White Mesa Mill-Well TW4-31
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,601.10 5,604.58 3.48 107.48
5,520.17 03/28/13 84.41 80.93
5,520.36 06/27/13 84.22 80.74
5,521.22 09/27/13 83.36 79.88
5,521.81 12/20/13 82.77 79.29
5,522.25 03/27/14 82.33 78.85
5,522.32 06/25/14 82.26 78.78
5,522.64 09/25/14 81.94 78.46
5,523.27 12/17/14 81.31 77.83
5,523.33 03/26/15 81.25 77.77
5,523.82 06/22/15 80.76 77.28
5,524.34 09/30/15 80.24 76.76
5,524.29 12/02/15 80.29 76.81
5,525.32 03/30/16 79.26 75.78
5,525.33 06/30/16 79.25 75.77
5,525.43 09/29/16 79.15 75.67
5,525.81 12/21/16 78.77 75.29
5,526.48 03/30/17 78.10 74.62
5,526.53 06/30/17 78.05 74.57
5,526.68 09/28/17 77.90 74.42
5,526.82 11/29/17 77.76 74.28
5,527.28 03/28/18 77.30 73.82
5,527.36 06/21/18 77.22 73.74
5,529.67 09/25/18 74.91 71.43
5,527.58 12/17/18 77.00 73.52
5,527.53 03/25/19 77.05 73.57
5,527.94 06/24/19 76.64 73.16
5,528.03 08/12/19 76.55 73.07
5,528.02 11/18/19 76.56 73.08
5,528.30 02/10/20 76.28 72.80
5,528.01 05/04/20 76.57 73.09
5,528.13 09/22/20 76.45 72.97
5,528.41 12/30/20 76.17 72.69
5,528.59 03/11/21 75.99 72.51
5,528.34 06/24/21 76.24 72.76
5,528.17 08/13/21 76.41 72.93
5,528.49 12/30/21 76.09 72.61
5,528.36 02/10/22 76.22 72.74
5,528.30 06/28/22 76.28 72.80
5,528.30 08/15/22 76.28 72.80
5,528.15 11/17/22 76.43 72.95
5,528.64 03/24/23 75.94 72.46
5,528.48 06/26/23 76.10 72.62
5,528.38 09/28/23 76.20 72.72
5,528.60 11/20/23 75.98 72.50
5,528.26 03/26/24 76.32 72.84
Water Levels and Data over Time
White Mesa Mill -Well TW 4-31
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) {blw.LSD) Well
5,601.10 5,604.58 3.48 107.48
5,528.13 06/26/24 76.45 72.97
00
0\
0
0
00
.i:,.
0
0
Depth Below Measuring Point (ft.)
00
N
0
0
00
0
0
0
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00
0
0
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0
0
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0
0
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0
0
0
l----------,~--+-----+---+----+--+---+-----;-03/01/13
03/01/14
03/01/15
03/01/16
03/01/17
03/01/18
03/01/19
03/01/20
03/01/21
03/01/22
03/01/23
03/01/24
03/01/25
l--3
~
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Water Levels and Data over Time
White Mesa Mill -Well TW 4-32
Measuring Total or Total Water Land Measured Total
Elevation Surface Point Length Of Date Of Depth to Depth to Depth Of
(WL) (LSD) Elevatfon Riser (L) Monitoring Water Water Well (MP) {blw.MP} (blw.LSD)
5,610.20 5,611.84 1.64 114.64
5,564.43 09/27/13 47.41 45.77
5,563.74 12/20/13 48.10 46.46
5,563.24 03/27/14 48.60 46.96
5,562.43 06/25/14 49.41 47.77
5,561.90 09/25/14 49.94 48.30
5,560.93 12/17/14 50.91 49.27
5,561.35 03/26/15 50.49 48.85
5,561.15 06/22/15 50.69 49.05
5,560.96 09/30/15 50.88 49.24
5,560.58 12/02/15 51.26 49.62
5,560.85 03/30/16 50.99 49.35
5,560.25 06/30/16 51.59 49.95
5,559.69 09/29/16 52.15 50.51
5,559.75 12/21/16 52.09 50.45
5,560.14 03/30/17 51.70 50.06
5,559.44 06/27/17 52.40 50.76
5,558.99 09/28/17 52.85 51.21
5,558.84 11/29/17 53.00 51.36
5,558.85 03/28/18 52.99 51.35
5,558.52 06/22/18 53.32 51.68
5,557.92 09/25/18 53.92 52.28
5,557.89 12/17/18 53.95 52.31
5,557.24 03/25/19 54.60 52.96
5,557.41 06/24/19 54.43 52.79
5,557.03 08/12/19 54.81 53.17
5,556.86 11/18/19 54.98 53.34
5,557.04 02/10/20 54.80 53.16
5,556.29 05/04/20 55.55 53.91
5,555.99 09/22/20 55.85 54.21
5,555.99 12/30/20 55.85 54.21
5,556.19 03/11/21 55.65 54.01
5,555.54 06/24/21 56.30 54.66
5,555.41 08/13/21 56.43 54.79
5,555.56 12/30/21 56.28 54.64
5,555.23 02/10/22 56.61 54.97
5,555.56 06/28/22 56.28 54.64
5,554.76 08/15/22 57.08 55.44
5,554.52 11/17/22 57.32 55.68
5,555.13 03/24/23 56.71 55.07
5,554.53 06/26/23 57.31 55.67
5,554.39 09/28/23 57.45 55.81
5,554.20 11/20/23 57.64 56.00
5,554.18 03/26/24 57.66 56.02
5,553.92 06/26/24 57.92 56.28
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Water Levels and Data over Time
White Mesa Mill -Well TW 4-33
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,605.20 5,606.73 1.53 86.23
5,536.70 09/27/13 70.03 68.50
5,536.62 12/20/13 70.11 68.58
5,536.49 03/27/14 70.24 68.71
5,536.06 06/25/14 70.67 69.14
5,535.73 09/25/14 71.00 69.47
5,535.73 12/17/14 71.00 69.47
5,535.14 03/26/15 71.59 70.06
5,534.98 06/22/15 71.75 70.22
5,534.81 09/30/15 71.92 70.39
5,534.34 12/02/15 72.39 70.86
5,534.33 03/30/16 72.40 70.87
5,533.90 06/30/16 72.83 71.30
5,533.48 09/29/16 73.25 71.72
5,533.39 12/21/16 73.34 71.81
5,533.28 03/30/17 73.45 71.92
5,533.01 06/27/17 73.72 72.19
5,532.67 09/28/17 74.06 72.53
5,532.53 11/29/17 74.20 72.67
5,532.37 03/28/18 74.36 72.83
5,532.13 06/21/18 74.60 73.07
5,531.82 09/25/18 74.91 73.38
5,531.61 12/17/18 75.12 73.59
5,531.14 03/25/19 75.59 74.06
5,531.08 06/24/19 75.65 74.12
5,530.98 08/12/19 75.75 74.22
5,530.45 11/18/19 76.28 74.75
5,530.22 02/10/20 76.51 74.98
5,529.68 05/04/20 77.05 75.52
5,529.30 09/22/20 77.43 75.90
5,529.15 12/30/20 77.58 76.05
5,529.07 03/11/21 77.66 76.13
5,528.64 06/24/21 78.09 76.56
5,528.48 08/13/21 78.25 76.72
5,528.74 12/30/21 77.99 76.46
5,528.18 02/10/22 78.55 77.02
5,528.57 06/28/22 78.16 76.63
5,527.78 08/15/22 78.95 77.42
5,527.65 11/17/22 79.08 77.55
5,527.34 03/24/23 79.39 77.86
5,527.28 06/26/23 79.45 77.92
5,527.21 09/28/23 79.52 77.99
5,527.45 11/20/23 79.28 77.75
5,526.88 03/26/24 79.85 78.32
5,526.70 06/26/24 80.03 78.50
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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
5,525.83 08/15/22 77.51 75.77
5,525.67 11/17/22 77.67 75.93
5,525.37 03/24/23 77.97 76.23
5,525.49 06/26/23 77.85 76.11
5,525.32 09/28/23 78.02 76.28
5,525.43 11/20/23 77.91 76.17
5,524.95 03/26/24 78.39 76.65
5,524.79 06/26/24 78.55 76.81
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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 (bhv.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
5,524.09 08/15/22 75.78 74.58
5,523.89 11/17/22 75.98 74.78
5,523.80 03/24/23 76.07 74.87
5,523.95 06/26/23 75.92 74.72
5,523.90 09/28/23 75.97 74.77
5,523.82 11/20/23 76.05 74.85
5,523.70 03/26/24 76.17 74.97
5,520.54 06/26/24 79.33 78.13
tZ:/10/60
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Water Levels and Data over Time
White Mesa Mill -Well TW 4-36
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring {blw.MP) {blw.LSD) Well
5,615.18 5,616.59 1.41 99.41
5,559.14 09/25/14 57.45 56.04
5,559.77 12/17/14 56.82 55.41
5,559.79 03/26/15 56.80 55.39
5,560.08 06/22/15 56.51 55.10
5,560.18 09/30/15 56.41 55.00
5,559.95 12/02/15 56.64 55.23
5,560.53 03/30/16 56.06 54.65
5,560.20 06/30/16 56.39 54.98
5,560.00 09/29/16 56.59 55.18
5,560.04 12/21/16 56.55 55.14
5,560.43 03/30/17 56.16 54.75
5,560.26 06/27/17 56.33 54.92
5,560.12 09/28/17 56.47 55.06
5,560.07 11/29/17 56.52 55.11
5,560.18 03/28/18 56.41 55.00
5,560.11 06/22/18 56.48 55.07
5,560.14 09/25/18 56.45 55.04
5,559.78 12/17/18 56.81 55.40
5,559.43 03/25/19 57.16 55.75
5,559.61 06/24/19 56.98 55.57
5,559.55 08/12/19 57.04 55.63
5,559.28 11/18/19 57.31 55.90
5,559.32 02/10/20 57.27 55.86
5,558.94 05/04/20 57.65 56.24
5,558.64 09/22/20 57.95 56.54
5,558.76 12/30/20 57.83 56.42
5,558.84 03/11/21 57.75 56.34
5,558.44 06/24/21 58.15 56.74
5,558.31 08/13/21 58.28 56.87
5,558.53 12/30/21 58.06 56.65
5,558.09 02/10/22 58.50 57.09
5,558.46 06/28/22 58.13 56.72
5,557.86 08/15/22 58.73 57.32
5,557.72 11/17/22 58.87 57.46
5,558.03 03/24/23 58.56 57.15
5,557.79 06/26/23 58.80 57.39
5,557.47 09/28/23 59.12 57.71
5,557.88 11/20/23 58.71 57.30
5,557.19 03/26/24 59.40 57.99
5,557.38 06/26/24 59.21 57.80
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Water Levels and Data over Time
White Mesa Mill-Well TW4-37
Total or
Measuring Measured
Water Point Depth to Total Depth
Elevation Land Surface Elevation Length Of Date Of Water to Water Total Depth
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Of Well
5,630.13 5,631.85 1.72 113.72
5,571.99 06/22/15 59.86 58.14
5,570.67 09/30/15 61.18 59.46
5,568.25 12/02/15 63.60 61.88
5,569.80 03/30/16 62.05 60.33
5,569.07 06/30/16 62.78 61.06
5,569.40 09/29/16 62.45 60.73
5,568.35 12/21/16 63.50 61.78
5,524.05 03/30/17 107.80 106.08
5,566.35 06/27/17 65.50 63.78
5,568.47 09/28/17 63.38 61.66
5,567.57 11/30/17 64.28 62.56
5,567.83 03/28/18 64.02 62.30
5,567.87 06/22/18 63.98 62.26
5,567.35 09/24/18 64.50 62.78
5,555.12 12/17/18 76.73 75.01
5,558.24 03/25/19 73.61 71.89
5,560.63 06/24/19 71.22 69.50
5,550.84 08/12/19 81.01 79.29
5,560.14 11/18/19 71.71 69.99
5,558.17 02/10/20 73.68 71.96
5,555.68 05/04/20 76.17 74.45
5,553.36 09/21/20 78.49 76.77
5,563.37 12/28/20 68.48 66.76
5,562.66 03/11/21 69.19 67.47
5,558.68 06/24/21 73.17 71.45
5,559.70 08/13/21 72.15 70.43
5,558.45 12/30/21 73.40 71.68
5,562.73 02/10/22 69.12 67.40
5,559.41 06/28/22 72.44 70.72
5,560.55 08/15/22 71.30 69.58
5,559.90 11/17/22 71.95 70.23
5,559.42 03/24/23 72.43 70.71
5,560.45 06/26/23 71.40 69.68
5,559.04 09/25/23 72.81 71.09
5,564.02 11/20/23 67.83 66.11
5,563.13 03/25/24 68.72 67.00
5,557.49 06/26/24 74.36 72.64
~Z/I0/90
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Water Levels and Data over Time
White Mesa Mill -Well TW 4-38
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,628.82 5,629.99 1.17 113.92
5,576.59 12/21/16 53.40 52.23
5,576.62 03/30/17 53.37 52.20
5,576.07 06/27/17 53.92 52.75
5,577.49 09/28/17 52.50 51.33
5,575.68 11/30/17 54.31 53.14
5,574.69 03/28/18 55.30 54.13
5,574.25 06/22/18 55.74 54.57
5,573.63 09/25/18 56.36 55.19
5,572.31 12/17/18 57.68 56.51
5,572.51 03/25/19 57.48 56.31
5,572.53 06/24/19 57.46 56.29
5,572.31 08/12/19 57.68 56.51
5,571.90 11/18/19 58.09 56.92
5,571.67 02/10/20 58.32 57.15
5,571.20 05/04/20 58.79 57.62
5,570.69 09/22/20 59.30 58.13
5,570.74 12/30/20 59.25 58.08
5,570.54 03/11/21 59.45 58.28
5,570.04 06/24/21 59.95 58.78
5,569.93 08/13/21 60.06 58.89
5,570.39 12/30/21 59.60 58.43
5,569.49 02/10/22 60.50 59.33
5,569.98 06/28/22 60.01 58.84
5,569.51 08/15/22 60.48 59.31
5,569.29 11/17/22 60.70 59.53
5,568.97 03/24/23 61.02 59.85
5,569.09 06/26/23 60.90 59.73
5,568.72 09/28/23 61.27 60.10
5,568.31 11/20/23 61.68 60.51
5,568.37 03/26/24 61.62 60.45
5,568.11 06/26/24 61.88 60.71
Depth Below Measuring Point (ft.)
0\ 0\ 0\ Vl Vl Vl Vl Vl ~ ~
~ N 0 00 0\ ~ N 0 00 0\
0 0 0 0 0 0 0 0 0 0
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12/01/16
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12/01/23
12/01/24
Water Levels and Data over Time
White Mesa Mill -Well TW 4-39
Total or
Measuring Measured
Water Land Point Depth to Total Depth Total
Elevation Surface Elevation Length Of Date Of Water to Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,628.82 5,629.56 0.74 120.74
5,566.39 12/21/16 63.17 62.43
5,567.57 03/30/17 61.99 61.25
5,567.11 06/27/17 62.45 61.71
5,567.26 09/28/17 62.30 61.56
5,560.52 11/30/17 69.04 68.30
5,565.51 03/28/18 64.05 63.31
5,529.91 06/22/18 99.65 98.91
5,565.04 09/24/18 64.52 63.78
5,557.32 12/17/18 72.24 71.50
5,564.12 03/25/19 65.44 64.70
5,553.85 06/24/19 75.71 74.97
5,555.03 08/12/19 74.53 73.79
5,549.98 11/18/19 79.58 78.84
5,548.39 02/10/20 81.17 80.43
5,544.51 05/04/20 85.05 84.31
5,552.04 09/21/20 77.52 76.78
5,553.71 12/28/20 75.85 75.11
5,557.31 03/11/21 72.25 71.51
5,554.26 06/24/21 75.30 74.56
5,555.01 08/13/21 74.55 73.81
5,555.23 12/30/21 74.33 73.59
5,559.05 02/10/22 70.51 69.77
5,558.79 06/28/22 70.77 70.03
5,555.74 08/15/22 73.82 73.08
5,558.96 11/17/22 70.60 69.86
5,554.96 03/24/23 74.60 73.86
5,556.05 06/26/23 73.51 72.77
5,559.02 09/25/23 70.54 69.80
5,555.06 11/20/23 74.50 73.76
5,554.69 03/25/24 74.87 74.13
5,553.37 06/26/24 76.19 75.45
_.
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12/01/16
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12/01/18
12/01/19
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12/01/23
12/01/24
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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
5,525.27 08/15/22 72.31 70.39
5,525.24 11/17/22 72.34 70.42
5,525.30 03/24/23 72.28 70.36
5,524 .73 06/26/23 72.85 70.93
5,525.48 09 /25/23 72.10 70.18
5,524.97 11/20/23 72.61 70.69
5,524.38 03/25/24 73.20 71.28
5,524.85 06/26/24 72.73 70.81
-..l
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Depth Below Measuring Point (ft.)
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Water Levels and Data over Time
White Mesa Mill -Well TW 4-41
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (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
5,525.83 08/15/22 89.13 87.48
5,525.79 11/17/22 89.17 87.52
5,524.86 03/24/23 90.10 88.45
5,525.74 06/26/23 89.22 87.57
5,526.03 09/25/23 88.93 87.28
5,525.31 11/20/23 89.65 88.00
5,526.00 03/25/24 88.96 87.31
5,525.68 06/26/24 89.28 87.63
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Water Levels and Data over Time
White Mesa Mill -Well TW 4-42
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,592.39 5,594.70 2.31 86.0
5,518.98 03/28/18 75.72 73.41
5,528.28 06/24/19 66.42 64.11
5,527.90 08/12/19 66.80 64.49
5,527.13 11/18/19 67.57 65.26
5,526.83 02/10/20 67.87 65.56
5,526.10 05/04/20 68.60 66.29
5,525.75 09/22/20 68.95 66.64
5,525.59 12/30/20 69.11 66.80
5,525.52 03/11/21 69.18 66.87
5,525.00 06/24/21 69.70 67.39
5,524.77 08/13/21 69.93 67.62
5,525.14 12/30/21 69.56 67.25
5,524.45 02/10/22 70.25 67.94
5,524.93 06/28/22 69.77 67.46
5,523.95 08/15/22 70.75 68.44
5,523.74 11/17/22 70.96 68.65
5,523.71 03/24/23 70.99 68.68
5,523.30 06/26/23 71.40 69.09
5,523.08 09/28/23 71.62 69.31
5,522.93 11/20/23 71.77 69.46
5,522.58 03/26/24 ,72.12 69.81
5,522.37 06/26/24 72.33 70.02
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Water Levels and Data over Time
White Mesa Mill -Well TW 4-43
Total or
Measuring Measured
Water Land Point Date Of Depth to Total Depth Total
Elevation Surface Elevation Length Of Monitoring Water to Water Depth Of
(WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well
5,595.17 5,596.89 1.72 95.5
5,523.85 12/30/21 73.04 71.32
5,523.48 02/10/22 73.41 71.69
5,523.28 06/28/22 73.61 71.89
5,523.41 08/15/22 73.48 71.76
5,523.25 11/17/22 73.64 71.92
5,523.67 03/24/23 73.22 71.50
5,523.58 06/26/23 73.31 71.59
5,523.45 09/28/23 73.44 71.72
5,523.74 11/20/23 73.15 71.43
5,523.35 03/26/24 73.54 71.82
5,523.24 06/26/24 73.65 71.93
PZ/10/Zl
PZ/10/90
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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 (fo rm er ly TW4-15)
Total Total Pumped Total Total Total Total Pumped Total Total Quarter Pumped Cone Total (ug) Cone Total (ug)
(e:al) (liters) (grams) (pounds) Pumped (gal) (liters) (grams) (pounds)
QI 2007 1307110 3370 4947411.4 l.6673E+I0 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
Q2 2009 450040 1800 1703401.4 3066122520 3066 6.8 58050 410 219719.3 90084892.5 90 0.2
Q3 2009 90420 2000 342239 .7 684479400 684 1.5 57610 850 218053 .9 185345773 185 0.4
Q4 2009 322380 1800 1220208.3 2196374940 2196 4 .8 61960 1100 234518.6 257970460 258 0.6
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
04 2010 90042.2 1500 340809.7 511214591 511 I.I 60180 970 227781.3 220947861 221 0.5
QI 2011 76247 .6 1700 288597 .2 490615182 491 I.I 55130 450 208667.1 93900172.S 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
Q4201 l 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 1.1 31440.1 2400 119000.8 285601868 286 0.6
Q2 2012 90916.5 1400 344118 ,8 481766269 482 I.I 26701.2 3000 101064 .1 303192353 303 0 .7
Q3 2012 91607.0 1500 346732.5 520098743 520 I. I 25246 3100 95556.1 296223941 296 0.7
Q4 2012 78840.0 1300 298409 .4 387932220 388 0.9 30797 1200 116566.6 139879974 140 0.3
QI 2013 62943.7 1670 238241.9 397863981 398 0.9 22650.7 2120 85732 .9 181753747 182 0.4
Q2 2013 71187.3 1490 269443.9 401471456 401 0.9 25343 .4 4030 95924.8 386576819 387 0.9
Q3 2013 72898 .8 1520 275922.0 419401376 419 0.9 25763 2940 97513.0 286688088 287 0.6
04 2013 70340.4 1410 266238.4 375396164 375 0.8 24207.6 1410 91625 .8 129192330 129 0.3
QI 2014 69833 .8 1390 264320 .9 367406097 367 0.8 23263 .1 1400 88050.8 123271167 123 0.3
Q2 2014 71934.9 1390 272273.6 378460299 378 0.8 23757.5 1960 89922 .1 176247390 176 0.4
Q3 2014 74788.2 1490 283073.3 421779272 422 0 .9 24062.4 2120 91076.2 193081510 193 0.4
Q4 2014 63093.0 1440 238807.0 343882087 344 0.8 21875.8 2090 82799.9 173051797 173 0.4
QI 2015 76454 .3 1400 289379 .5 405131336 405 0.9 24004.9 1980 90858.5 179899922 180 0.4
02 2015 60714.7 1300 229805.1 298746681 299 0.7 27804.6 1980 105240.4 208376014 208 0.5
Q3 2015 89520.8 1290 338836 .2 437098734 437 1.0 21042 .0 2350 79644.0 187163330 187 0.4
Q4 2015 99633.4 1200 377112.4 452534903 453 1.0 19355 .6 2680 73260.9 196339335 196 0 .4
QI 2016 90882.1 1240 343988.7 426546048 427 0.9 19150.8 2650 72485 .8 192087312 192 0.4
Q2 2016 96540.5 1580 365405 .8 577341152 577 1.3 22105.7 2220 83670.1 185747565 186 0.4
03 2016 79786.4 1430 301991.5 431847879 432 1.0 17149.5 3190 64910 .9 207065635 207 0.5
04 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. I 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
03 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
Qua rt erly Calculation ofChlorofC>rm R!!moved and Total Volume of Water Pum~cd
MW-4 J\'fW-26 (formerly TW4-15)
Total Total Pumped Total Total Total Total Pumped Total Total Quarter Pumped Cone Total (ug) Cone Total (ug)
(e:al) (liters) (grams) (pounds) Pumped (gal) (liters) (grams) (pounds)
QI 2018 105060.4 1320 397653.6 524902770 525 1.2 27004.7 1210 102212.8 123677475 124 0.3
02 2018 101786.2 1240 385260.8 477723351 478 1.1 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
Q42018 102884.8 1330 389418.9 517927177 518 I.I 23791.3 1480 90050.1 133274104 133 0.3
QI 2019 I I 1746 .9 1190 422962.0 503324800 503 I.I 26798.5 1110 I 01432 .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 I.I 22384.8 1390 84726 .5 117769791 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 .1 94841793.4 95 0.2
QI 2021 93486.7 1150 353847.3 406924364 407 0 .9 27898.0 3060 105593.9 323117426 323 0.7
Q2 2021 93252.4 1320 352960.3 465907641 466 1.0 29124.1 998 110234.7 110014249 110 0.2
Q3 2021 89693.5 1140 339489.9 387018483 387 0.9 27945.6 1580 105774.1 167123072 167 0.4
Q4 2021 95091.4 1100 359920.9 395913044 396 0.9 30045.3 826 113721.5 93933926.4 94 0.2
QI 2022 96291.3 1040 364462.6 379041073 379 0.8 29113.3 1030 I 10193 .8 113499656 113 0.3
Q2 2022 93554 .5 1010 354103.8 357644820 358 0.8 29385.9 611 111225.6 67958860.8 68 0.1
Q3 2022 82718 .6 1200 313089.9 375707881 376 0.8 28531.3 612 107991.0 66090473 .9 66 0.1
Q4 2022 91487.4 1170 346279 .8 405147421 405 0.9 29411.4 1040 111322.1 115775035 116 0.3
QI 2023 90044.0 1010 340816.6 344224782 344 0.8 27474 .7 571 103991.7 59379283 .3 59 0.1
Q2 2023 91310.8 1050 3456 I 1.5 362892026 363 0.8 25207 .6 2230 95410.8 212766008 213 0.5
Q3 2023 95944.3 1030 363149.1 374043612 374 0.8 26841.5 2610 101595 .1 265163152 265 0.6
Q4 2023 85275 .0 1690 322766 .0 545474585 545 1.2 21628.4 836 81863 .5 68437881 68 0.2
QI 2024 90964 .1 950 344299 .3 327084306 327 0.7 22861.5 542 86530.8 46899681.4 47 0 .1
Q2 2024 90289.4 1660 34 1745.4 567297329 567 1.3 22443.3 4160 84947.9 353383224 353 0.8
Totals 7916694.25 .. I 19.6 329 2183 .8 42.0
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-19 TW4-20
Total Total Pumped Total Total Total Total Pumped Total Quarter Pumped Cone Total (ug) Cone Total (ug) Total
(eal) (liters) (grams) (pounds) Pumped (gal) (liters) (grams) (pounds)
QI 2007 6768986 2660 25620612 .0 68150827947 68151 150 .2 642290 16240 2431067.7 3.9481E+I0 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 1100 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 223171 l.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 l 686367386 1686 3.7 49270 6800 186487 .0 1268111260 1268 2.8
Q3 2009 200650 6600 759460 .3 5012437650 5012 I 1.1 51030 13000 193148 .6 2510931150 251 I S.5
Q4 2009 454205 4700 1719165.9 8080079848 8080 17 .8 208790 15000 790270.2 1.1854E+ 10 l 1854 26.l
Ql 2010 348550 940 1319261.8 1240106045 1240 2 .7 14490 3500 54844.7 191956275 192 0.4
Q2 2010 453340 1800 1715891.9 3088605420 3089 6 .8 39014.86 18000 147671.2 2658082412 2658 5.9
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
QI 2011 454607.9 3400 1720690.9 5850349065 5850 12.9 37187 .5 31000 140754.7 4363395313 4363 9.6
Q2 201 I I 59238 .9 4000 602719 .2 2410876946 2411 5.3 67907 .7 8100 257030.6 2081948220 2082 4.6
Q3 201 I 141542.6 970 535738.7 519666578.8 520 I.I 72311.2 6800 273697 .9 1861145666 1861 4.1
Q4 201 l 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.l 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 1153861.0 676 I 62566.5 676 1.5 18781.6 17800 71088.4 1265372737 1265 2.8
Q2 2014 297660.0 810 1126643 .1 912580911 913 2.0 18462.4 22100 69880.2 1544352066 1544 3.4
Q3 2014 309742.0 1410 1172373 .5 1653046593 1653 3 .6 17237 .9 12400 65245 .5 809043599 809 1.8
Q4 2014 198331.0 4310 750682 .8 3235443019 3235 7.1 16341.8 23300 61853.7 1441191513 1441 3.2
QI 2015 60553 .0 4660 229193 .l 1068039869 1068 2.4 15744.7 19900 59593 .7 1185914421 1186 2.6
Q2 2015 75102.8 1570 284264 .l 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 I 136158969 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 I 16597 .0 7780 441319.6 3433466838 3433 7.6 14353 .5 21600 54328.0 1173484746 1173 2.6
Q2 2016 123768.0 12600 468461.9 5902619688 5903 13.0 15818.3 33700 59872.3 2017695347 2018 4.4
03 2016 103609.0 6040 392160.l 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 518229739 .8 518 1.1 13552 .8 23400 51297.3 1200357943 1200 2.6
Q2 2017 109943.0 510 416134.3 2122284 70.1 212 0.5 12475.3 18100 47219.0 854664090 855 1.9
Q3 2017 112626.4 8840 426290.9 3768411768 3768 8.3 14556 .8 27600 55097 .5 1520690669 1521 3.4
Q4 2017 108891.2 129 412153.2 53 I 6776 I. 77 53 0 .1 14271.0 I 1600 54015.7 626582526 627 1.4
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume ofWaterJ>llll!J)ed
TW4-19 TW4-20
Total Total Pumped Total Total Total Total Pumped Total Total Quarter Pumped Cone Total (ug) Cone Total (ug)
{gal) (liters) (grams) (pounds) Pumped (gal) (liters) (grams) (pounds)
QI 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 I.I
Q4 2018 107197.4 5270 405742.2 2138261178 2138 4.7 12841.1 9500 48603 .5 461733494 462 1.0
QI 2019 116132.8 2050 439562 ,6 901103428.4 901 2.0 14623.9 15600 55351.5 863482799 863 1.9
Q2 2019 100704.0 11500 381164.6 4383393360 4383 9.7 13439 .1 13700 50867.0 696877811 697 1.5
Q3 2019 101026.8 6670 382386.4 2550517541 2551 5.6 13787.0 10500 52183.8 547929848 548 1.2
Q4 2019 98806.8 551 373983.7 206065039.6 206 0.5 8317.69 8790 31482.5 276730794 277 0.6
QI 2020 96857.9 8720 366607.2 3196814361 3197 7.0 9505.05 14300 35976.6 514465584 514 I. I
Q2 2020 136619.7 7600 517105.6 3930002290 3930 8.7 100713.8 5800 381201.6 2210969393 2211 4.9
Q3 2020 154514.4 1350 584837.0 789529955.4 790 1.7 12476.2 Well collapsed and not sampled
Q4 2020 144512.0 660 546977.9 361005427.2 361 0.8 Well plugged and abandoned
QI 2021 133462.3 6660 505154.8 3364331005 3364 7.4 Well plugged and abandoned
Q2 2021 151242.8 775 572454.0 443651848.5 444 1.0 Well plugged and abandoned
Q3 2021 157632.4 4450 596638.6 2655041921 2655 5.9 Well plugged and abandoned
Q4 2021 124359.9 6950 470702.2 3271380439 3271 7.2 Well plugged and abandoned
QI 2022 112209.2 654 424711.8 277761531.6 278 0.6 Well plugged and abandoned
Q2 2022 123246.5 2540 466488.0 1184879526 1185 2.6 Well plugged and abandoned
Q3 2022 137486.6 4750 520386.7 2471836850 2472 5.4 Well plugged and abandoned
Q4 2022 137474.5 7380 520341.0 3840116451 3840 8.5 Well plugged and abandoned
QI 2023 132291.8 230 500724.3 115166591.7 115 0.3 Well plugged and abandoned
Q2 2023 117218.0 4850 443670.3 2151800865 2152 4 .7 Well plugged and abandoned
Q3 2023 104098.2 198 394011.6 78014291.54 78 0.2 Well plugged and abandoned
Q4 2023 104814.1 1660 396721.4 658557534.5 659 1.5 Well plugged and abandoned
QI 2024 106975.9 351 404903.8 142121227.3 142 0.3 Well plugged and abandoned
Q2 2024 105708.8 1030 400107.8 412111042.2 4 12 0.9 We ll plu gg,d and abandoned
Totals 21309553.8 488.6 2582397 .89 ----296.2
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-4 TW4-22
Total Total Total Total Total Total
Quarter Pumped Cone Pumped Total (ug) Pumped Cone Pumped Total (ug) Total Total
(gal) (liters) (grams) (pounds) (gall (liters) (grams) (pounds)
QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2010 84513.9 2000 319885.1 639770223 640 1.4 NA NA NA NA NA NA
Q3 2010 76916.8 2100 291130.1 611373184.8 611 1.3 NA NA NA NA NA NA
Q4 2010 86872. l 1700 328810.9 558978527.5 559 l.2 NA NA NA NA NA NA
Ql 201 I 73360.0 1800 277667 .6 499801680 500 l.1 NA NA NA NA NA NA
Q2 2011 80334 .6 1700 304066 .5 516912983 .7 517 I. I NA NA NA NA NA NA
Q3 201 I 97535.0 1500 369170.0 553754962.5 554 l.2 NA NA NA NA NA NA
Q4 201 I I 09043.5 1500 412729 .6 6190944 71.3 619 1.4 NA NA NA NA NA NA
QI 2012 101616.8 1200 384619 .6 46 I 543505 .6 462 1.0 NA NA NA NA NA NA
Q2 2012 87759.1 1500 332168 .2 498252290.3 498 I.I NA NA NA NA NA NA
Q3 2012 80006 .0 1600 302822 .7 484516336 485 I.I NA NA NA NA NA NA
Q4 2012 71596 1400 270990.9 379387204 379 0.8 NA NA NA NA NA NA
QI 2013 58716.8 1460 222243.1 324474908.5 324 0.7 16677.4 10600 63124 .0 669113965.4 669.1 l.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
QI 2014 58992.9 1260 223288.1 281343039.4 281 0.6 24532 .0 12100 92853.6 1123528802.0 1123 .5 2 .5
Q2 2014 60235.3 1220 227990.6 278148544.8 278 0.6 24193.9 12400 91573.9 1135516502 .6 I 135.5 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 1124.4 2.5
QI 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 l.6
03 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 l.2
Q2 2016 61378 .0 1780 2323 I 5 .7 413521999.4 414 0.9 26506.3 8570 100326.3 859796780.9 859 .8 l.9
Q3 2016 50104.2 1380 189644.4 261709267.9 262 0.6 22144.1 5840 83815.4 489482044.0 489 ,5 I.I
Q4 2016 31656.0 1430 119818.0 171339682.8 171 0.4 23646.8 3370 89503.1 301625575.1 301.6 0.7
QI 2017 23526.8 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 I 13 0.3 23685 .0 3670 89647.7 329007150 .8 329.0 0,7
Q3 2017 23937 .3 1290 90602.7 I I 6877457 .8 117 0.3 24583 .2 5150 93047.4 479194 I 71.8 479.2 1.1
Q4 2017 22900 .6 I 120 86678 .8 97080223 .52 97 0.2 23779 .6 4770 90005.8 429327599.2 429.3 0.9
TableG-1
Quartcrlyj_::alculation of Chloroform Removed and Total Volume of Water Pumped
TW4-4 TW4-22
Total Total Total Total Total Total
Quarter Pumped Cone Pumped Total (ug) Pumped Cone Pumped Total (ug) Total Total
(2al) (liters) (grams) (pounds) (e:al) (liters) (grams) (pounds)
QI 2018 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 289534 786.2 289.5 0.6
Q4 2018 15420.2 1140 58365.5 66536620.98 67 0.1 24171.0 2680 91487.2 245185789 .8 245.2 0.5
QI 2019 16655.0 1050 63039.2 66191133 .75 66 0.1 26149.9 4310 98977.4 4265924 71.2 426.6 0.9
Q2 2019 14311.9 1070 54170.5 57962479.41 58 0 .1 23073 .1 4690 87331.7 409585595 .6 409.6 0 .9
Q3 2019 14520.0 989 54958.2 54353659.8 54 0 .1 24711.7 3460 93533.8 323626894.4 323.6 0.7
Q4 2019 14399.8 1140 54503.2 62133697.02 62 0.1 24052 .5 3820 91038 .7 347767881.8 347.8 0.8
QI 2020 14439 .2 1100 54652.4 60117609 .2 60 0 .1 24746 .1 3910 93664.0 366226195.0 366.2 0.8
Q2 2020 I 5347.0 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 63012 I 80.38 63 0 .1 22893 .3 4520 86651.l 391663155.1 391.7 0 .9
Q3 2021 12021.0 1100 45499 .5 50049433.5 50 0.1 22272 .5 3510 84301.4 295897957 .9 295.9 0.7
Q4 2021 11401.1 950 43153 .2 40995505.33 41 0.1 22667.3 3330 85795.7 285699782.6 285.7 0.6
QI 2022 10434.1 1010 39493.1 39887999.19 40 0 .1 22083 .6 3320 83586.4 277506934 .3 277.5 0.6
Q2 2022 11463.2 1110 43388 .2 48 I 609 I 5.32 48 0 .1 22489 .0 2600 85120.9 221314249 .0 221.3 0.5
Q3 2022 7928.5 1040 30009.4 31209747.4 31 0 .1 21940.2 3190 83043.7 264909265.8 264.9 0.6
Q4 2022 8777 .0 1030 33220.9 34217573.35 34 0 .1 22398.4 2350 84777.9 199228168.4 199.2 0.4
QI 2023 8236 .0 945 31173.3 29458730.7 29 0 .1 21783 .0 1900 82448.7 156652444.5 156 .7 0.3
Q2 2023 7407.0 1980 28035 .5 55510280.1 56 0.1 22375.4 3330 84690.9 282020660.4 282 .0 0.6
03 2023 8580.2 1020 32476.1 33125578.14 33 0 .1 23422.7 1890 88654.9 167557797.9 167 .6 0.4
Q4 2023 5943 .9 1530 22497 .7 34421422.1 34 0 .1 20555.5 3460 77802.6 269196883 .6 269 .2 0.6
QI 2024 6295.6 996 23828.8 23733530.62 24 0.1 21759.4 2180 82359.3 179543337.2 179 .5 0.4
02 2024 5724.5 1620 21667.2 35100916.65 35 0.1 21916.0 3670 82952.1 304434060.2 304.4 0.7
Total s 2295726.7 27.1 1074250.7 5 1.6
Tabl e G-1
Quarterl y Calculation of Ch lorofo rm Removed and T otal Vol ume of Water Pumped
TW4 -24 TW4 -25
Total Tota l Tota l Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) Pumped Cone Pumped Total (ug)
(gal) (liters) (grams) (pounds) (2al) (liters) (grams) (pounds)
QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA
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 201 I 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 201 I 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.I 0.1 126576.5 0.0 479092 .1 0.0 0.0 0.0
QI 2014 229063.9 78.5 867006.9 68060038.6 68 .1 0.2 129979.2 0,0 491971.3 0.0 0.0 0.0
Q2 2014 216984.1 62.7 821284.8 51494558.1 51.5 0.1 124829.8 0.0 472480.8 0.0 0.0 0.0
Q3 2014 213652.5 76.3 808674.7 61701880.6 61.7 0.1 119663.9 0.0 452927.9 0.0 0.0 0.0
Q4 2014 178468.7 25 .8 675504.0 17428004.0 I 7.4 0.04 107416.1 0.0 406569.9 0.0 0.0 0.0
QI 2015 92449.3 49 .2 349920.6 17216093.5 17 .2 0.04 71452.4 0 .0 270447.3 0.0 0.0 0.0
Q2 2015 62664.2 4.28 237184.0 1015147.5 1.0 0.002 91985 .3 0.0 348164.4 0.0 0.0 0.0
Q3 2015 66313.2 46 .9 250995 .5 11771687.2 11.8 0.026 124137 .1 0.0 469858.9 0.0 0.0 0.0
Q4 2015 107799.1 25.3 408019 .6 10322895.7 10.3 0.023 116420.1 0.0 440650.1 0.0 0.0 0.0
QI 2016 100063.2 22.8 378739.2 8635254.0 8.6 0.019 115483.2 0.0 437103 .9 0.0 0.0 0.0
Q2 2016 65233.6 69.6 246909.2 17184878 ,6 17.2 0.038 125606.0 0.0 475418.7 0.0 0.0 0.0
Q3 2016 5 I 765.8 I 7.8 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 I.IS 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.I 0.0 0,0 0.0
Q3 2017 55574.6 17.8 210349.9 3744227.5 3.7 0.008 124138.4 0.0 469863.8 0.0 0.0 0.0
Q4 2017 106021.4 16.0 401291.0 6420656.0 6.4 0.014 116731.9 0.0 441830.2 0.0 0.0 0.0
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-24 TW4-25
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (e:al) (liters) (e:al) (liters)
QI 2018 96900.2 24.9 366767.3 9132504.7 9.1 0.020 116991.7 0.0 442813.6 0.0 0.0 0.0
Q2 2018 53117.9 49.2 201051.3 9891721.6 9 .9 0.022 117758.3 0.0 445715.2 0.0 0.0 0.0
Q3 2018 53142.5 35.0 201144.4 7040052.7 7.0 0.016 111657.5 0.0 422623.6 0.0 0.0 0.0
Q4 2018 101606.4 21.0 384580.3 8076185.5 8.1 0 ,018 114458.2 0.0 433224.3 0.0 0.0 0.0
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
Q22019 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 I 03987 .2 72.6 393591.6 28574746. 7 28.6 0.063 86254.4 0.0 326472.7 0.0 0.0 0.0
QI 2021 81891.2 96.2 309958.3 29817985.4 29.8 0.066 80272.2 0.0 303830.4 0.0 0.0 0.0
Q2 2021 54377 .9 41.2 205820.4 8479798.5 8.5 0.019 82692.8 0.0 312992.2 0.0 0.0 0.0
Q3 2021 53333 .1 103.0 201865.8 20792175 ,7 20.8 0.046 82802.3 0.0 313406.7 0 .0 0.0 0.0
04 2021 96534.8 112.0 365384.2 40923032.4 40.9 0.090 89361.5 0.0 338233 .3 0.0 0.0 0.0
QI 2022 73545.0 I 14 .0 278367.8 31733932.1 31.7 0.070 92972.1 0.0 351899.4 0.0 0.0 0.0
Q2 2022 50341.7 124.0 190543.3 23627373.5 23.6 0.052 101724.9 0.0 385028.7 0.0 0.0 0.0
Q3 2022 58456.5 88.9 221257.7 19669806.3 19.7 0.043 98357.6 0.0 372283.7 0.0 0.0 0.0
Q4 2022 100289.8 79.5 379596.9 30177956 .0 30 .2 0.067 95056.0 0.0 359787 .1 0.0 0.0 0.0
QI 2023 75424.5 95.5 285481.6 27263491.0 27.3 0.060 87269.8 0.0 330316.2 0.0 0.0 0 .0
Q2 2023 52081.4 58.5 197128.0 11531987.1 11.5 0.025 94118.3 0.0 356237.8 0.0 0.0 0 .0
Q3 2023 57213.1 65 .7 216551.7 14227449.0 14 .2 0.031 117564.3 0 .0 444981.0 0.0 0 .0 0.0
Q4 2023 86337.4 168 .0 326787.1 54900225 .9 54 .9 0 ,121 100409.1 0.0 380048.3 0.0 0 .0 0.0
QI 2024 75577.5 87.6 286061.0 25058939.3 25 .1 0.055 I 05631.3 0.0 399814.5 0.0 0.0 0.0
Q2 2024 53174.6 66.2 20 1265.9 13323800.0 13.3 0.029 105707.7 0.0 400103.6 0.0 0.0 0.0
Totals 4540295 .8 . 2.0 4685847 .6 0.0
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-0l TW4-02
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (2al) (liters) (gal) (liters)
QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2010 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 201 I 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
04 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
04 2014 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2015 24569.2 1130 92994.4 105083696.9 105 .1 0.23 24156.7 1840 91433.I I 6823692 I .5 168.2 0.37
02 2015 23989.9 1260 90801.8 I 14410232.1 114.4 0.25 22029.9 1650 83383.2 137582233.0 137.6 0.30
03 2015 23652.0 1060 89522.8 94894189 .2 94.9 0.21 21586.9 1310 81706.4 I 07035405.6 107.0 0.24
Q4 2015 20764.3 1040 78592.9 81736590 .5 81.7 0.18 21769.8 2070 82398.7 I 70565294,5 170.6 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
03 2016 15613.5 I 160 59097. I 68552633.1 68 .6 0.15 17487.4 1780 66189.8 I I 7817860 .0 I I 7.8 0.26
04 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 I 6931.8 519 64086.9 3326I081.9 33 .3 0.07 19869.7 1570 75206.8 I I 8074698.8 I 18 .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 I 9338 .8 1310 73 I 97.4 95888539.0 95 .9 0.21
Q4 2017 14089.8 556 53329.9 29651420.5 29 .7 0.07 17327.6 1610 65585.0 105591795.3 105 .6 0.23
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TIV4 -0I TW4-02
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds)
(2111) (li te rs) {!!al) (lit ers)
QI 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
0 3 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 I 0603.6 87.2 40134.6 3499739.4 3.50 0.01 16169.9 1040.0 61203.1 63651194.4 63 .65 0.14
Q2 2019 9393.9 1040.0 35555.9 36978148 .0 36 .98 0.08 13893.7 1360.0 52587.7 71519210.1 71.52 0.16
Q3 2019 9734.1 894 36843.6 32938150.2 32 .94 0.07 14106.9 797 53394.6 42555509.4 42.56 0.09
Q42019 9184.3 1070 34762.6 37195955 .8 37.20 0.08 14220.9 934 53826.1 50273583.5 50.27 0.11
QI 2020 8796 .7 1190 33295 .5 39621656.3 39.62 0.09 13162.1 1880 49818.5 93658871.2 93 .66 0.21
Q2 2020 9600.2 499 36336.8 18132041.7 18.13 0.04 14155 .6 1070 53578.9 57329472.2 57.33 0.13
Q3 2020 9487.3 1060 35909.4 38063996.3 38 .06 0.08 14009.5 1260 53026.0 66812706.5 66.81 0.15
Q4 2020 9318 .7 924 35271.3 32590662.3 32.59 0.07 14582.9 1130 55196 .3 62371792.4 62.37 0.14
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 33172.1 31745717.4 31.75 0.07 11975.9 1160 45328.8 52581386.5 52.58 0.12
0 3 2021 8677.2 821 32843.2 26964268.8 26.96 0.06 12694.5 1150 48048 .7 55255984.9 55.26 0.12
0 4 2021 8873 .4 957 33585.8 32141628.8 32.14 0.07 12351.3 852 46749.7 39830719.3 39.83 0.09
QI 2022 8251.8 946 31233.1 29546477.6 29.55 0.07 11380.6 1020 43075.6 43937082.4 43.94 0.10
Qi 2022 7616.0 914 28826.6 26347475.8 26.35 0 .06 11518.1 892 43596.0 38887639.6 38.89 0.09
Q3 2022 8512.1 954 32218.3 30736256.8 30.74 0.07 I 0953.7 832 41459.8 34494515.7 34.49 0.08
Q4 2022 8450.8 1010 31986.3 32306140.8 32.31 0.07 12148.6 1030 45982.5 47361924.5 47.36 0.10
QI 2023 7985.1 928 30223.6 28047504.0 28.05 0.06 10275.4 772 38892.4 30024924.3 30.02 0.07
Q2 2023 7825.6 830 29619.9 24584513.7 24.58 0.05 11931.8 788 45161.9 35587548.0 35.59 0.08
Q32023 8419.4 891 31867.4 28393879.2 28.39 0.06 11513.8 867 43579.7 37783628.5 37.78 0.08
Q4 2023 7329 .3 1360 27741.4 37728304.7 37.73 0.08 10133 .2 1200 38354.2 46024994.4 46.02 0.10
QI 2024 7636.8 832 28905.3 24049199.6 24 .05 0 .0 5 10605.4 925 4014 1.4 37 13083 1.1 37 .13 0.08
Q2 2024 7755 .6 1-IOO 2935 -1 9 -11 096924 .-1 4 1.10 0 .09 10395 .1 1-180 39345 .S 5823 127 1.2 58 .23 0.13
Totals 464991.8 3.7 581636.2 6.4
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
1W4-II TW4-21
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters)
QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2010 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2011 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 201 I NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2011 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2013 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2014 NA NA NA NA NA NA NA NA NA NA NA NA
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 I 16364.9 42589555 .0 42 .6 0 .09
Q3 2015 3584.4 1120 13567 .0 15194988 .5 15 .2 0.03 125285.4 281 474205.2 I 3325 I 672 .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 I 85276457.8 185.3 0 .41
Q2 2016 3760.4 3340 14233 .1 47538600.8 47.5 0.10 132248.7 545 500561.3 272805924.6 272.8 0.60
03 2016 2953 .8 3200 11180.1 35776425.6 35 .8 0.08 110381.9 456 417795.5 190514744.1 190 .5 0.42
Q4 2016 3050.2 3180 11545.0 36713122.3 36 .7 0.08 130311.3 434 493228.3 21406 I 069.4 214.1 0.47
QI 2017 2984.2 3310 11295.2 37387102.1 37.4 0.08 54333 .5 598 205652.3 122980073 .9 123.0 0.27
Q2 2017 2845.9 3370 10771.7 36300735.2 36.3 0.08 60969.7 224 230770.3 51692550.4 51.7 0.11
Q3 2017 2830.0 3290 10711.6 35240999.5 35 .2 0.08 120116.2 537 454639.8 244141581.7 244 .1 0.54
Q4 2017 2612.7 2880 9889 .1 28480520 .2 28.5 0 .06 126492 .5 466 478774.1 223 I 08736.4 223 .1 0.49
TableG-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-ll TW4-21
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters)
QI 2018 , 2571.0 3090 9731.2 30069516.2 30.1 0.07 117832.0 421 445994.1 187763524.5 187.8 0.41
Q2 2018 2513.5 2800 9513 .6 26638073 .0 26 .6 0.06 116681.0 532 441637.6 234951195.2 235.0 0.52
Q3 2018 2170.2 3050 8214.2 25053331.4 25.1 0.06 I 10001.4 476 416355.3 198185122.3 198.2 0.44
Q4 2018 2379.5 2930 9006.4 26388774.0 26.4 0.06 121686.3 585 460582.8 269440914.0 269.4 0.59
QI 2019 2342.4 2820 8866.0 25002074.9 25 .00 0.06 123264 323 466554.6 150697141.8 150 .70 0.3
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
Q42019 1983.9 3250 7509.1 24404449 .9 24.40 0.05 116167.55 794 439694.2 349117176.3 349.1 0.8
QI 2020 I 947.4 2990 7370 .9 22039017.9 22.04 0.05 106622.01 844 403564.3 340608275.8 340.6 0.8
Q2 2020 2003.9 2810 7584.8 21313179 .8 21.31 0.05 110999.13 767 420131.7 322241019.3 322.2 0.7
Q3 2020 1784.1 3070 6752.8 20731152.8 20.73 0.05 99515.11 920 376664.7 346531516.0 346.5 0.8
Q4 2020 1394.6 2670 5278.6 14093757.9 14.09 0.03 107061.16 948 405226.5 384154713.1 384.2 0.8
QI 2021 2195 .1 2750 8308.5 22848455.3 22.85 0.05 97211.49 400 367945.5 147178195.9 147.2 0.3
Q2 2021 1694.5 3320 6413.7 21293425.9 21.29 0.05 97157 .60 1130 367741.5 415547913.1 415.5 0.9
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 1473.1 2550 5575.7 14217992.9 14.22 0.03 91682.50 657 347018.3 227990998.5 228.0 0.5
Q3 2022 1304.3 3020 4936 .9 14909290.6 14.91 0.03 87160 .0 1070 329900.7 352993763.5 353.0 0.8
Q4 2022 1442.4 2900 5459.5 15832503 .6 15 .83 0.03 94463.6 482 357544.6 172336503.2 172.3 0.4
QI 2023 1326.4 2430 5020.3 12199446 .4 12.20 0.03 83943 ,5 526 317726.1 167123933.7 167.1 0.4
02 2023 1159.5 2510 4388.6 11015275.8 I 1.02 0.02 83501.7 768 316053.9 242729392.6 242.7 0.5
Q3 2023 1277.7 2630 4835 .9 12718430.8 12.72 0.03 89276 .6 49.7 337911.8 16794215.4 16 .8 0.04
Q4 2023 1084.1 4180 4103.4 17152346 .0 17.15 0.04 82763.3 1630 313259.2 510612502.6 510.6 1.13
QI 2024 1278.9 2530 4840.7 12247001.9 12 .25 0.03 80835.1 523 305960.8 160017486.8 160.0 0.35
Q2 2(J24 --rf l <T.'4 41 ICJ 4236.9 17413778.2 1741 0.04 79732.7 1210 301788 3 365163806.1 365.2 0.81
... ro tol s 92780.6 2 .2 3750786.2 19.0
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-37 TW4-39
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (eal) (liters) (2al) (liters)
QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2010 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2011 NA NA NA NA NA NA NA NA NA NA NA NA
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
Q4201 I NA NA NA NA NA NA NA NA NA NA NA NA
QI 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2013 NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2013 NA NA NA NA NA NA NA NA NA NA NA NA
QI 2014 NA NA NA NA NA NA NA NA NA NA NA NA
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 NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2015 29206.0 30200 110544.7 3338450242 .0 3338 .5 7.4 NA NA NA NA NA NA
Q3 2015 118063 .9 19100 446871.9 8535252554 .7 8535.3 18 .8 NA NA NA NA NA NA
Q4 2015 111737 .5 19500 422926.4 8247065531.3 8247.1 18 .2 NA NA NA NA NA NA
QI 2016 111591.0 17500 422371.9 7391508862.5 7391.5 16.3 NA NA NA NA NA NA
Q2 2016 119241.2 16200 451327.9 7311512660.4 7311.5 16.1 NA NA NA NA NA NA
Q3 2016 98377.6 15900 372359 5920511534.4 5920.5 13.1 NA NA NA NA NA NA
Q4 2016 101949.1 16400 385877 6328388433.4 6328.4 14.0 3598.3 2800 13620 38134783.4 38.1 0.1
QI 2017 97071. 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
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-37 TW4-39
Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (11.all lliters) (2al) (liters)
QI 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 IO .I 34259 .8 7160 129673 928461135.9 928.5 2.0
Q3 2018 77457.8 14100 293178 4133806599 .3 4133.8 9.1 33473.4 8180 126697 1036379979.4 1036.4 2.3
Q4 2018 76271.4 15200 288687 4388046184.8 4388.0 9.7 37003.6 6520 140059 913182241.5 913.2 2.0
QI 2019 77591 13300 293683.4 3905989871. 7 3906.0 8.6 49117 885 185907.5 164528107.9 164.5 0.4
Q2 2019 64950.1 16200 245836.1 3982545281 . 7 3982.5 8.8 34285.7 8640 129771.4 1121224675.7 1121.2 2.5
Q3 2019 67572.0 11900 255760.0 3043544238 .0 3043.5 6.7 36976.2 4240 139954.9 593408848.1 593.4 1.3
Q4 2019 66732.4 13100 252582.1 3308825955 .4 3308.8 7.3 51808.6 1650 196095.6 323557659 .2 323.6 0.7
QI 2020 65554.2 12000 248122.6 2977471764.0 2977.5 6.6 43169.3 812 163395.8 132677390.0 132.7 0.3
Q2 2020 65163.8 11700 246645.0 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
QI 2021 59907.4 9380 226749.5 2126910394 .4 2126.9 4.7 38932.4 2970 147359.1 437656628.0 437.7 1.0
Q2 2021 58564.2 13000 221665.5 2881651461.0 2881.7 6.4 32865.2 2490 124394.8 309743007.2 309.7 0.7
Q3 2021 49987 .5 10200 189202 .7 1929867412.5 1929.9 4.3 31436.6 858 118987.5 102091301.6 102.1 0.2
Q4 2021 46649.1 14800 176566.8 2613189283 .8 2613 .2 5.8 42730.6 776 161735 .3 125506609.1 125.5 0.3
QI 2022 42923.5 13700 162465.4 2225776630 .8 2225 .8 4.9 35550.2 724 134557.5 97419635.1 97.4 0.2
Q2 2022 41998.3 46800 158963.6 7439494865.4 7439.5 16.4 31354,2 982 118675 .6 116539485.4 116.5 0.3
Q3 2022 39640.3 I 1600 150038 .5 174044 70 I 1.8 1740.4 3.8 31305 .9 843 118492.8 99889457 .0 99.9 0.2
Q4 2022 43251.9 9640 163708.4 1578149376 .1 1578.1 3.5 39072.6 1720 147889.8 254370440.5 254.4 0.6
QI 2023 44536.9 8010 168572 .2 1350263053 . 7 1350.3 3.0 35659.0 1850 134969.3 249693232.8 249.7 0.6
Q2 2023 42641.9 8160 161399.6 1317020666.6 1317.0 2.9 28777.7 3330 108923.6 362715569.7 362.7 0.8
Q3 2023 46548.5 9620 176186 .1 1694910017 .5 1694 .9 3 .7 34299.4 3440 129823.2 446591907.8 446 .6 1.0
Q4 2023 43126.4 14000 163233.4 2285267936.0 2285 .3 5.0 33586 .9 1200 127126.4 152551699.8 152.6 0.3
QI 2024 44275.4 8860 167582.4 1484 779966.5 1484.8 3 .3 32186.4 893 121825.3 I 08790023.9 108.8 0.2
Q2 2024 43726.7 13500 165505.6 2234325053.3 2234.3 4.9 29594.3 4380 112014.4 490623183.7 490.6 I. I
Total s 25 .45184 .9 318.8 1227237 .8 34.9
Table G-1
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TW4-40 TW4-41
Total Total Total Total Total Total Total Total Total Total Volume
Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (pounds) Pumped
(eal) (liters) (eal) (liters) (eallons)
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
02 2011 NA NA NA NA NA NA NA NA NA NA NA NA 13.1 449131.1
Q3 201 I NA NA NA NA NA NA NA NA NA NA NA NA 8.1 462334.5
Q42011 NA NA NA NA NA NA NA NA NA NA NA NA 10.8 468706.3
QI 2012 NA NA NA NA NA NA NA NA NA NA NA NA 10 .6 448486.3
Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA 10.4 400415 .2
Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA 6.6 390229 .0
Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA 7.1 358000.0
QI 2013 NA NA NA NA NA NA NA NA NA NA NA NA 13.7 634286 .1
Q2 2013 NA NA NA NA NA NA NA NA NA NA NA NA 13.5 768953.4
Q3 2013 NA NA NA NA NA NA NA NA NA NA NA NA 31.1 950505 .6
Q4 2013 NA NA NA NA NA NA NA NA NA NA NA NA 10.3 990119.8
QI 2014 NA NA NA NA NA NA NA NA NA NA NA NA 8.6 859297.5
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 458271.4
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
Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped
TIV44 0 TIV4-4 I
Total Total Total Total Total Total Total Total Total Total Volume
Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (pounds) Pumped
(e11l) (l il crs) (eal) (l it ers) (ea ll ons l
Qi 2018 NA NA NA NA NA NA NA NA NA NA NA NA 18.0 810330.4
Q2 2018 NA NA NA NA NA NA 73711.2 1400 278997 390595648.8 390.6 0.9 20 .1 803034.5
Q3 2018 NA NA NA NA NA NA 44981.6 1390 170255 236654 734.4 236.7 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
Q i 2019 NA NA NA NA NA NA 31904 1220 120755.1 147321253 .7 147 .3 0.3 16 .2 811589.4
Q2 2019 81762.7 263 309471.8 81391088.5 81.4 0.18 25146.5 1320 95179.5 125636943.3 125 .6 0.3 26.2 750139 .6
Q3 2019 116414.2 380 440627 .7 167438543.9 167.4 0.37 24045.6 1190 91012.6 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 1410 80190.5 113068638.8 I 13.1 0.2 13 .0 844887 .9
QI 2020 I 02021.51 364 386151.4 140559115 .2 140.6 0.31 17289 .9 1200 65442.3 78530725 .8 78.5 0.2 18.9 802209.2
Q2 2020 100757 .13 367 381365 .7 139961225 .5 140.0 0.31 17294.9 1220 65461.1 79862567.4 79.9 0 .2 25.2 910974.8
Q) 2020 86264 .50 333 32651 I.I 108728207.1 108 .7 0.24 13411.4 1110 50762.3 56346111 .4 56.3 0 .1 13.4 766734 .5
Q4 2020 77535 .9 264 293473 .5 77477002 .7 77.5 0.17 17765 .7 1020 67243.3 68588115 .2 68.6 0.2 9.6 828651.4
QI 2021 72543.4 436 274576.7 I 19715421.8 119.7 0.26 13407 .5 1170 50747.3 59374310 .5 59.4 0.1 16.8 759810 .1
Q2 2021 66866.4 343 253089.3 86809638.1 86.8 0.19 13168.7 1130 49843 .5 56323188.3 56.3 0.1 11.8 738065 .6
Q) 2021 58841.0 301 222713 .2 67036668.7 67.0 0.15 13821.0 1100 52312.5 57543733 .5 57 .5 0.1 13.4 716109.4
Q4 2021 57357 .9 286 217099.7 62090500.3 62 .1 0 .14 12449.1 1030 47119.8 48533438.8 48.5 0 .1 16 .1 753893.2
QI 2022 53009.2 238 200639.8 47752277.6 47.8 0.11 12247.8 1030 46357 .9 47748660.7 47 .7 0.1 8.4 692614.3
0 2 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
Q ) 2022 45416 .2 302 171900.4 51913918.6 51.9 0.11 11108 .0 1060 42043 .9 44566527.2 44.6 0.1 12 .3 670819.9
Q4 2022 48263 ,2 298 182676 .1 54437488 .6 54.4 0.12 11722 .6 1050 44369 .9 46588384.1 46 .6 0.1 15 .0 743710.2
QI 2023 45062 .1 259 170560.2 44175082.0 44.2 0.10 11577.2 985 43819.8 43162518.3 43.2 0.1 5.9 682889.4
Q2 2023 45516.3 220 172279.0 37901381.4 37.9 0 .08 10239.7 1040 38757.2 40307515 .7 40.3 0 .1 11.4 641312 .6
0 3 2023 43550.l 282 164837.2 46484080.9 46.5 0.10 10780.6 1050 40804 .6 42844879.0 42.8 0 .1 7 .2 679330.4
04 2023 38061.9 402 144064 .2 57913799.5 57.9 0 .13 10952 .1 1580 41453 .7 65496843.6 65.5 0 .1 10 .6 652000 .6
QI 2024 39466 .3 187 149379.8 27934014.4 27.9 0.06 11795.1 913 44 644 .3 40760247.8 40.8 0 .1 5 .8 658144.6
Q2 2024 38059 9 393 144056 .7 566 14291.5 56 .6 0.12 11-105 .6 1660 43 170.2 7 1662525.-l 71.7 0.2 I I.I 626753 6
Totals 1377186.8 3.7 48785 7 .2 5.0 1420.8 56847425 .2
Table G-2
Chloroform Mass Removal Per Well Per Quarter
MW-4 MW-26 TW4-19 TW4-20 TW4-4 TW4-22 TW4-24 TW4-l!I TW4-0I TW4-02 TW4-II TW4-21 TW4-37 TW4-39 TW4-40 TW4-41 Quarter
Quarter• (lbs.) (lbs.) (lbs.) (lbs.)** (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs,) (lbs.) (lbs.) (lbs.) (lbs.) Totals (lbs.)
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 o_o 2 .5 NA NA NA NA NA NA NA NA NA NA NA NA 4.0
Q3 2007 2_2 0.8 29 3 .1 NA NA NA NA NA NA NA NA NA NA NA NA 9.0
Q4 2007 1.7 1.0 3.1 4 .8 NA NA NA NA NA NA NA NA NA NA NA NA 10 .6
QI 2008 1.7 0.4 4.6 7 ,2 NA NA NA NA NA NA NA NA NA NA NA NA 13 ,8
02 2008 1.3 0,5 32 9 ,9 NA NA NA NA NA NA NA NA NA NA NA NA 14 .8
03 2008 1 2 03 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
Ql 2009 1.7 0.4 4.3 3 ,6 NA NA NA NA NA NA NA NA NA NA NA NA 10.0
02 2009 6,8 02 3.7 2 ,8 NA NA NA NA NA NA NA NA NA NA NA NA 13 .5
Q3 2009 1 5 0.4 111 5.5 NA NA NA NA NA NA NA NA NA NA NA NA 18 .5
Q4 2009 48 0.6 17.8 26.J NA NA NA NA NA NA NA NA NA NA NA NA 49.4
QI 2010 09 04 2,7 0 .4 NA NA NA NA NA NA NA NA NA NA NA NA 4.5
02 2010 1.5 1.0 6.8 5.9 1.4 NA NA NA NA NA NA NA NA NA NA NA 16.5
Q3 2010 1.3 1.2 2.0 4 .9 1.3 NA NA NA NA NA NA NA NA NA NA NA 10 .6
Q4 2010 1.1 0 .5 7.7 7.4 1.2 NA NA NA NA NA NA NA NA NA NA NA 17 .9
QI 2011 1.1 0 .2 12 .9 9 .6 I.I NA NA NA NA NA NA NA NA NA NA NA 24,9
Q2 201 I 1.2 0.8 5.3 4 .6 l.l NA NA NA NA NA NA NA NA NA NA NA 13 .1
Q3 2011 1.2 0.4 1.1 4 .1 1.2 NA NA NA NA NA NA NA NA NA NA NA 8.1
Q4 2011 1.2 0.8 2.7 4 .8 I 4 NA NA NA NA NA NA NA NA NA NA NA 10 .8
Ql 2012 I.I 0,6 0_8 7 .0 I 0 NA NA NA NA NA NA NA NA NA NA NA 10 .6
02 2012 I.I 0 .7 0.7 6 .9 1.1 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 72
Ql 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 20 13 0 .9 0.6 22 .3 4.4 0.7 2 ,1 0.1 0 .0 NA NA NA NA NA NA NA NA 31.1
Q4 2013 0 .8 0,3 3 .2 2 .5 0.7 2 .8 0.1 a.a NA NA NA NA NA NA NA NA 10.3
QI 2014 0,8 0,3 1.5 2 .8 0 ,6 2.5 0.2 0 .0 NA NA NA NA NA NA NA NA 8.6
Q2 2014 0 .8 0.4 2 .0 3.4 0 ,6 2 .5 0.1 0 .0 NA NA NA NA NA NA NA NA 9,9
Q3 2014 0 ,9 0.4 3.6 1.8 0 ,8 2.5 0.1 0.0 NA NA NA NA NA NA NA NA 10 ,2
Q4 2014 0 .8 0.4 7.1 3 .2 0.6 2 ,5 0 ,04 o.o 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 0.0 0.23 0.37 0.20 NA NA NA NA NA 99
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.Q3 0.0 0.21 0.24 0,03 0.29 18 .8 NA NA NA 33.4
Q4 2015 1.0 0.4 7.4 2 .2 0 ,6 1.5 0,02 0.0 0 .18 0.38 0.09 0.38 18.2 NA NA NA 32 .3
QI 2016 0.9 0.4 7.6 2,6 0 ,6 1.2 O.Q2 00 016 0.3 4 0.08 0.41 16.3 NA NA NA 30 .6
02 2016 1.3 0.4 13 0 4.4 0 ,9 1.9 0 .04 0.0 0.19 0.36 0.10 0.60 16.1 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 13.1 NA NA NA 24 7
Q4 2016 1.0 0.4 5.8 2.3 0.4 0 .7 0 017 0.0 0.19 0.26 0.08 0.47 14.0 0.1 NA NA 25 6
QI 2017 0.9 0,3 I .I 2,6 0.3 I.I 0 015 0.0 0 ,07 0.26 0.08 0 ,27 14.6 5.6 NA NA 27 .2
Q2 2017 0.9 0.5 0 ,5 1.9 0 .3 0 .7 0,008 00 0,15 0,30 0 .08 0,11 12.3 1,9 NA NA 19,6
Q3 2017 I.I 03 8.3 3.4 0.3 I.I 0.008 0.0 0,14 0.21 0.08 0.54 10.2 2.9 NA NA 28 .5
Q4 2017 1.2 0.6 0.1 1.4 0 .2 0 .9 0.014 0.0 0.D7 0,23 0.06 0.49 11.3 0.3 NA NA 16 .9
Ql 2018 1.2 0.3 2.4 l.8 0.2 0 .9 0.020 0,0 0 01 0.10 0.07 0.41 9.1 1.4 NA NA 18 .0
Q2 2018 I.I 0.4 2 ,8 1.3 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 1.0 0.4 1.7 I. I 0,1 0.6 0.016 o.o 0,08 0.12 0.06 0.44 9.1 2,3 NA 0.5 17.6
Q4 2018 I.I 0,3 4.7 I 0 0 ,1 0.5 0.018 00 0.06 0.1 1 0 06 0 ,59 9,7 2 .0 NA 0.4 20 .8
QI 2019 11 0.2 2.0 1.9 0 .1 0.9 0.023 0.0 0.01 0 14 0.06 0.33 8.6 0.4 NA 0,3 16.2
02 2019 1.0 0.3 9.7 1.5 0 .1 0.9 0.013 0.0 0.08 0.1 6 0.05 0 .65 8.8 2.5 0.18 0,3 26 .1
Q3 2019 0.9 03 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
04 2019 I.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 02 7.0 I.I 0 .1 0.8 0.044 0.0 0.09 0.21 0,05 0.8 6.6 0 ,3 0.31 0.2 18 .9
Table G-2
Chloroform Mass Removal Per Well Per Quarter
MW-4 MW-26 TW4-19 TW4-20 TW4-4 TW4-22 TW4-24 TW4-25 TW4-0I TW4-02 TW4-II TW4-21 TW4-37 TW4-39 TW4-40 TW4-41 Quarter
Quarter• (lbs.) (lbs.) (lbs.) (lbs.1•• (lbs.) (lbs.) (lbs.J (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) Totals (lbs.)
02 2020 11 03 8.7 4 ,9 0 ,1 0 .5 0.024 00 0,04 0.13 0.05 0.7 6.4 1.8 0.31 0.2 25 .2
03 2020 09 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
Q4 2020 0.8 0.2 0.8 0.0 0 ,1 0 .7 0.063 0.0 0.D7 0.14 0.QJ 0.8 5.3 0.3 0.17 0.2 9 ,6
QI 2021 0.9 0 7 74 0 ,0 0 ,1 1.0 0.066 00 0.D7 0,10 0,05 03 4 .7 1.0 0.26 0.1 16 .8
Q2 2021 1.0 0,2 1.0 0 ,0 0 I 09 0.019 0.0 0.D7 0.12 0.05 0.9 6.4 0.7 0.19 0.1 11.8
03 2021 0.9 0.4 5.9 0 ,0 0,1 0.7 0.046 0.0 0.06 0.12 0.03 0.5 4 ,3 0.2 0.15 0.1 13.4
Q4 2021 0.9 02 7.2 0 ,0 0 ,1 0 ,6 0.090 00 0.D7 0.09 0,04 06 5 8 0.3 0.1 4 0.1 16.1
QI 2022 0.8 0.3 0.6 0.0 0.1 06 0.070 0.0 0.07 0.10 0.QJ 0.4 4 .9 0.2 0.11 0.1 8.4
02 2022 0.8 0.1 2.6 0 ,0 0, 1 0.5 0.052 0.0 0.06 0.09 0.G3 0.5 16.4 0,3 0.14 0.1 21.8
Q3 2022 0.8 0 I 5.4 0 ,0 0.1 0.6 0.043 00 0.Q7 0,08 0.QJ 0.8 3.8 0.2 0.11 0.1 12 .3
Q4 2022 09 0.3 8 5 0 ,0 0.1 0.4 0.067 0.0 0.07 0.10 0.03 0.4 3.5 0.6 0.12 0.1 15 ,0
01 2023 0.8 0.1 0.3 0 .0 OJ 0.3 0.060 0 .0 0.06 0.07 0.03 0.4 30 0.6 0.10 0.1 5.9
02 2023 08 05 4 .7 o.o 0 .1 0,6 0.025 00 0.05 0.08 0.02 0.5 2.9 0.8 0 .08 0.1 11.4
03 2023 0.8 0.6 0.2 0 ,0 0 .1 0.4 O.QJI o.o 0.06 0.08 0.QJ 0.0 3.7 1.0 0 .10 01 7 .2
Q4 2023 1.2 0.2 1.5 0 ,0 0,1 0.6 0.121 0.0 0.08 0.10 0.04 I.I 5.0 0.3 0.13 0.1 10.6
QI 2024 0.7 0 I 03 0 ,0 0 I 04 0,055 00 0.05 0.08 0.QJ 0.4 3.3 0.2 0.06 0.1 5.8
Q2 2024 I 3 08 09 00 01 07 0 029 00 0.09 013 0 04 0 81 49 11 0 12 02 111
WelfTotars 119 .6 42 .0 488 .6 296 ,2 27 .1 51.6 2.0 0.0 3 .7 6.4 2 .2 19 .0 318 .8 34 .9 3.7 5.0 1420 ,8
* QI 2007 represents the cumulative total prior lo and including QI 2007 .
** TW4-20 collapsed in August 2020 and was abandoned on October I, 2020
Table G-3 Well Pumping Rates and Volumes
Volume of Water Pumped
Pumping Well Name During the Quarter (gals) Average Pump Rate (gpm)
MW-4 90289.4 4.0
MW-26 22443.3 15.8
TW4-19 105708.8 15.9
TW4-4 5724.5 16.0
TWN-2 14009. I 16.0
TW4-22 21916.0 16.0
TW4-24 53174.6 16.0
TW4-25 105707 .7 15.3
TW4-0l 7755.6 12.7
TW4-02 10395.1 16.0
TW4-l l 1119.4 16.0
TW4-21 79732.7 16.0
TW4-37 43726.7 18.0
TW4-39 29594.3 18.0
TW4-40 38059 .9 18 .0
TW4-41 11405.6 6 .0
0
0
Chloroform Removed (Pounds)
01
0
0
......
0
0
0
......
01
!='
0
I\.)
0
0
0
I\.)
01
0
0
(.,.)
0
0
0
(.,.)
01
0
0
81 ~88~ ~1. ! I I I i • I I
Q.3 2007 _
~rn~t
81 ~88[
8J ~88§-
Q12010 -'·
§mm
Q2 2011 _
Q3 2011 _
Q4 2011
Q1 2012 _
Q2 2012 _
8l ~81t
Q12013 _
Q22013 _
Q32013 _
Q4 2013 _
81 ~81t
111m ~
@ml!:
@rnlt
8~ ~81t
Q42018 _
Q12019 _
8~~81§-
81 ~815 -
02 2020
Q3 2020
81 ~8~~ -
02 2021
Q3 2021
81 ~8~~ -
§rn;r
Q2 2023
ai ~2~r
Q1 2024
Q2 2024 .l.......:!-L__.....J...._ __ ---1... __ ____J_ ___ .J...._ __ _J__ __ --'----__J
:s=;:
Ill
(fJ
(fJ
0 ....,
0 ::::r
0 a
0 -,
3
:::0
CD
3
0 < CD a.
C'"
'<
0
C
Ill
;:::i.
CD -,
-::::::
C'"
(fJ
----
Q1 2007
Q2 2007
Q3 2007
Q4 2007
Q1 2008
Q2 2008
Q3 2008
Q4 2008
Q1 2009
Q2 2009
Q3 2009
Q4 2009
Q1 2010
Q2 2010
Q3 2010
Q4 2010
Q1 2011
Q2 2011
Q3 2011
Q4 2011
Q1 2012
Q2 2012
Q3 2012
Q4 2012
Q1 2013
Q2 2013
Q3 2013
Q4 2013
Q1 2014
Q2 2014
Q3 2014
Q4 2014
Q1 2015
Q2 2015
Q3 2015
Q4 2015
Q1 2016
Q2 2016
Q3 2016
Q4 2016
Q1 2017
Q2 2017
Q3 2017
Q4 2017
Q1 2018
Q2 2018
Q3 2018
Q4 2018
Q1 2019
Q2 2019
Q3 2019
Q4 2019
Q1 2020
02 2020
Q3 2020
Q4 2020
Q1 2021
Q2 2021
Q3 2021
Q4 2021
Q1 2022
Q2 2022
Q3 2022
Q4 2022
Q1 2023
Q2 2023
Q3 2023
Q4 2023
Q1 2024
Q2 2024
Chloroform Removed (Pounds)
~r
◄
◄►
-◄
. ~~
:~►
-►
►
◄
◄
►
◄ .
◄ ►
• ◄
. ►
-◄
◄ ►
-• ► -►
-
◄
►
-I ◄
►
I ◄
►
◄ ►
◄
►
• ◄
►
►
-◄
-►
-
-.
◄
. ►
• ◄ ►
•
• ◄ ►
-'
►
• ◄
• ◄
• ◄ . ►
• ◄
◄ ►
◄ ► .
-►
►
I ◄
I ◄
• ►
-1 ◄
0
0
01
0
->.
0
0
' ....
01
0
N
0
0
N
01
0
I
w
0
0
w
01
0
T
.i::,..
0
0
~
~
0
~
~
ll)
C/)
C/)
0 -()
:::r-
0 -,
0
o' -,
3
;o
CD
3
0 < CD c..
C"
'<
0
C
ll)
~
CD -,
----a=
C/) -
0
0
0
+-Q1 2015
Q2 2015
Q3 2015
Q4 2015
Q1 2016
Q2 2016
Q3 2016
Q4 2016
Q1 2017
Q2 2017
Q3 2017
Q4 2017
Q1 2018
Q2 2018
Q3 2018
Q4 2018
Q1 2019
Q2 2019
Q3 2019
Q4 2019
Q1 2020
Q2 2020
Q3 2020
Q4 2020
Q1 2021
Q2 2021
Q3 2021
Q4 2021
Q1 2022
Q2 2022
Q3 2022
Q4 2022
Q1 2023
Q2 2023
Q3 2023
Q4 2023
Q1 2024
Q2 2024
Chloroform Removed (Pounds) p p p
0
U1
.....
0
.....
U1
0
N
0
p
N
U1
p
w
0
i
I
0
---"
~
ll)
C/l
C/l
0 -("')
:J"
0 a
o' -,
3
::0
CD
3
0 < CD a.
C"'
'<
0
C
ll)
ffi" -, --C"' en -
0 Chl«1Pform ~moved &ounds)0 0
0 o :...... :...... r-.> N
0 C.11 0 C.11 0 C.11
+ Q1 2015
Q2 2015
Q3 2015
Q4 2015
Q1 2016
Q2 2016
Q3 2016
Q4 2016
Q1 2017
Q2 2017
Q3 2017
Q4 2017
Q1 2018
Q2 2018
Q3 2018
Q4 2018
Q1 2019
Q2 2019
Q3 2019
Q4 2019
Q1 2020
Q2 2020
Q3 2020
Q4 2020
Q1 2021
Q2 2021
Q3 2021
Q4 2021
Q1 2022
Q2 2022
Q3 2022
Q4 2022
Q1 2023
Q2 2023
Q3 2023
Q4 2023
Q1 2024
Q2 2024
0
w
0
0
w
C.11
0
~
0
--i
i
I
0
N
~
Ill
CJ)
CJ)
0 -(')
:::J'"
0 a
0 -,
3
:::a
Cl)
3
0 < Cl)
c..
CJ'"
'<
0
C
Ill :::+
Cl) -, -CJ'"
CJ) -
Q2 2010
Q3 2010
Q4 2010
Q1 2011
Q2 2011
Q3 2011
Q4 2011
Q1 2012
Q2 2012
Q3 2012
Q4 2012
Q1 2013
Q2 2013
Q3 2013
Q4 2013
Q1 2014
Q2 2014
Q3 2014
Q4 2014
Q1 2015
Q2 2015
Q3 2015
Q4 2015
Q1 2016
Q2 2016
Q3 2016
Q4 2016
Q1 2017
Q2 2017
Q3 2017
Q4 2017
Q1 2018
Q2 2018
Q3 2018
Q4 2018
01 2019
Q2 2019
Q3 2019
Q4 2019
Q1 2020
Q2 2020
Q3 2020
Q4 2020
Q1 2021
Q2 2021
Q3 2021
Q4 2021
Q1 2022
Q2 2022
Q3 2022
Q4 2022
Q1 2023
Q2 2023
Q3 2023
Q4 2023
Q1 2024
Q2 2024
0
0
Chloroform Removed (Pounds)
0 0
N :i,.
0 a> 0
00
__.
0
__.
N
__. __.
:i,. a>
~--~-~--~--~--~--~--~-~
--f
~
I
0
~
s::
ll)
en en
0 -()
:::r
0 a
o' -,
3
:::a
CD
3
0 < CD a.
C'"
'<
0
C:
ll)
;::::i
CD -, -C'" en -
0
0
0
+ 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
02 2019
03 2019
04 2019
01 2020
02 2020
03 2020
04 2020
01 2021
02 2021
03 2021
04 2021
01 2022
02 2022
03 2022
04 2022
01 2023
02 2023
03 2023
04 2023
01 2024
02 2024
Chloroform Removed (Pounds)
~ ~ ~
0
01
....,.
0
_..
01
0
N
0
0
~
01
-I
i
I
~
~
s:::
ll) en en
0 -()
~
0 -,
0
o' -,
3
;::a
CD
3
0 < CD a.
C" '<
0
C
ll)
;::i
CD -, -C" en .........
MW-26 Mass of Chloroform Removed by Quarter (lbs.)
14 .0 -,--------------------------------------,
12 .0 i ·lt---------------------------------------1
10 .0 +a---------------------------------------1
8.0 , 1---------------------------------------l
en
-0
C:
56.Q -l 1--------------------------------------------I
a.. --0
Q) > 0
E4 0 ·I Q) •
0:::
E ...
.2
0
_Q2 ,0
..c:
(..)
I ~ ......... .....-... .,, ..... ...... ~,..,.......,,~ .... ~ ........ ~..,,.-.
0.0 ~II' I ' I I j I i I I' I Ii' I I I I I I I I' 1 t I I I Ii ''' i
~~-;tnW)~~~~"<:t'<'""~~
~
0
Chloroform Removed (Pounds)
N
0
0
J:>.
0
0
0)
0
0
CX)
0
0
......
0
0
0
.....
N
0
0
.....
J:>.
0
0
......
0)
0
0
Q1 2007 T I I I I ii ii i i I Q2 2007 • , I I I
Q3 2007
Q4 2007
Q1 2008
Q2 2008 8~ ~88~ _,
8~ ~88~ _,
03 2009
04 2009
Q1 2010
Q2 2010
Q3 2010
Q4 2010
Q1 201 l Q2 201
03 201 8t~8h -
a2 2012
Q3 2012 _
Q4 2012
§i l2H :; ...----
Q4 2013 -
Q1 2014
8~ ~8ll ~· 81 ~815 -
Q2 20 15
83 2015
4 2015
Q1 2016 ..,
Q2 2016 .., 8~ ~8 1~ .,
Q1 2017
Q2 2017
Q3 2017 8t ~8i~ ·•
Q2 2018
Q3 2018 .
Q4 20~8 8~ ~81§ ·1 Q3 2019 .
Q4 2019
Q1 2020
Q2 2020
Q3 2020
Q4 2020
Q1 2021 Q2 2021 -
8i ~8~l
Q1 2022
Q2 2022
8i ~8~~
Q1 2023
8~ ~8~~
Q4 2023
01 2024
Q2 2024 .,,.__ __ ..J..._ __ ..__ __ '--__ .___ __ '----'---'--------'
i
I .....
co
~
ll)
CJ)
CJ)
0 -()
:::r
0 -,
0
o' -,
3
:::a
CD
3
0 < CD a.
C""
'<
0
C
ll)
ffi" -, -C"'
CJ) .._..,
::E
(1)
(")
0
QJ
"C
V>
(1) c..
0 w
N
0
N
0
0
0
01 2007
02 2007
03 2007
04 2007
01 2008
02 2008
03 2008
04 2008
01 2009
02 2009
03 2009
04 2009
01 2010
02 2010
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I.D '<I" N 0 00 I.D '<I" N
.-I .-I .-I .-I
.... .... ....
N .J::, en co 0 N .J::,
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
Q2 2015
Q3 2015
Q4 2015
Ql 2016
Q2 2016
Q3 2016
Q4 2016 --i
Ql 2017 :e Q2 2017 .,:::.
Q3 2017 I w
Q4 2017 ........
Ql 2018 ~
Q2 2018 -C
Q3 2018 3
Q4 2018 ti)
Ql 2019 ""C
C
Q2 2019 3
Q3 2019 "C
Q4 2019 ti) a.
Ql 2020 C"'
Q2 2020 <
Q3 2020 0
Q4 2020 C
DJ
Ql 2021 """ ,...
Q2 2021 ti)
""" Q3 2021 -OQ
Q4 2021 DJ -.
Ql 2022 -Q2 2022
Q3 2022
Q4 2022
Ql 2023
Q2 2023 .
Q3 2023
Q4 2023
Ql 2024
Q2 2024
I-' I-'
N ~ en 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
Q4 2016
Ql 2017
Q2 2017
Q3 2017
Q4 2017
Ql 2018 -I
Q2 2018 :E
Q3 2018 .,:::..
I w
Q4 2018 U)
Ql 2019 ~ -Q2 2019 C
Q3 2019 3 n,
Q4 2019 ""C
Ql 2020 C
3
Q2 2020 't:J
Q3 2020
n, a.
Q4 2020 C"' <
Ql 2021 0
Q2 2021 C
QJ
Q3 2021 ""I r+
Q4 2021
n,
""I -Ql 2022 (7Q
QJ
Q2 2022 -. -Q3 2022
Q4 2022
Ql 2023
Q2 2023
Q3 2023
Q4 2023
Ql 2024
Q2 2024
vlOl lb
vlOl "Cb
ElOl vb
ElOl Eb
ElOl lb -ElOl "Cb .
n,
QO llOl vb -'-C1J llOl Eb +' '-n,
::::s llOl lb
CJ
> llOl "Cb ..c
"C !lOl vb C1J a.
E !lOl Eb
::::s c.. !lOllb
C1J
E !lOl "Cb
::::s -~ OlOl vb
0 OlOl Eb ""' I
""' ~ OlOl lb
1--
OlOl "Cb
6!0lvb
6!0lEb
6Wllb
C? a C? a a a a a
a a a c:i c:i c:i c:i a a a a a a a a a a a a a a a a a a a a a a
<:t N a 00 1.0 <:t N
.-t .-t .-t
17l0l lb
17l0l !b
ElOl 170
ElOl Eb
ElOl lb
ElOl !b -. llOl 170
ns llOlEb taO -... llOl lb a., ..., ... llOl !b ns :::s a !lOl 170
> !lOl Eb ..c
"'C EOllb a.,
C. EOl!b E
:::s OlOl 170 0..
a., OlOl Eb E
:::s OlOl lb -~ OlOl !b
'l"'■t
~ 6Wl 170
I
~ 6WlEb s
t-6Wllb
6Wl!b
8Wl 170
8WlEb
8Wllb
0 0 0 0 0 0 0 0 0
d d c:i c:i c:i c:i c:i c:i c: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 co r--I.O LI) <:t m N .-I
TabH
Laboratory Analytical Reports
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
tARO?.ArORIE S
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: MW-04_05292024
Matrix: Water
Date Sampled: 5/29/24 12:40
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
45.4
4.12
< 1.0
1660
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
50.0
1.0
1.0
PO#:
Receipt: 5/31/24 12:15@ 2.9 °C
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
EPA300.0
EPA 353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24E2464
Preparation
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Lab ID: 24E2464-11
Analysis
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Flag(s)
Page 13 of 27
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
t.AB0,iAT0RIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-01_05292024
Matrix: Water
Date Sampled: 5/29/24 12:48
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
44.5
3.76
< 1.0
1400
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Certificate of Analysis
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Minimum
Reporting
Limit
1.00
0.100
1.0
50.0
1.0
1.0
PO#:
Receipt: 5/31/24 12:15@ 2.9 ·c
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24E2464
Preparation
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Lab ID: 24E2464-07
Analysis
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
.E!.!!lilll
Page 9 of 27
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LA80"1AT0RIE$.
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-02_05292024
Matrix: Water
Date Sampled: 5/29/24 12:32
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
41.2
2.84
< 1.0
1480
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
50.0
1.0
1.0
PO#:
Receipt: 5/31/24 12:15@ 2.9 ·c
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24E2464
Preparation
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Lab ID: 24E2464-10
Analysis
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Page 12 of 27
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Seiving the lntermountain West Since 1953
CHEMTECH-FORD
.__.-).BQRATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-03_06042024
Matrix: Water
Date Sampled: 6/4/24 12:10
I norganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
26.4
6.42
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
10.0
0.500
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/6/24 11:00 @4.3 ·c
Date Reported: 6/19/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24F0441
Preparation
Date/Time
6/8/24
6/7/24
6/11/24
6/11/24
6/11/24
6/11/24
Lab ID: 24F0441-01
Analysis
Date/Time
6/8/24
6/7/24
6/11/24
6/11/24
6/11/24
6/\1/24
QM-RPO
Page 3 of 11
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
!..ABO.rArORll:S
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-04_05292024
Matrix: Water
Date Sampled: 5/29/24 13:03
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
40.5
6.87
< 1.0
1620
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Yml.!
1.00
0.200
1.0
50.0
1.0
1.0
PO#:
Receipt: 5/31/24 12:15@ 2.9 ·c
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24E2464
Preparation
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Lab ID: 24E2464-12
Analysis
Date/Time
6/6/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
.E!!.2{fil
Page 14 of 27
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-05_06132024
Matrix: Water
Date Sampled: 6/13/24 6:24
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
51.6
7.38
< 1.0
8.5
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.500
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 °C
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24F1276-19
Analysis
Date/Time
6/18/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
Page 21 of 36
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-06_06122024
Matrix: Water
Date Sampled: 6/12/24 7:16
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
39.9
0.182
< 1.0
2.0
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24F1276-13
Analysis
Date/Time
6/18/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
~
Page 15 of 36
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
!..ABORArORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-07 _06202024
Certificate of Analysis
PO#:
Receipt: 6/21/24 11:01 @-1.1 °C
Date Reported: 7/3/2024
Project Name: 2nd Quarter Chloroform 2024
Matrix: Water Lab ID: 24Fl 794-07
Date Sampled: 6/20/24 7:42 Sampled By: Tanner Holliday
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\'olatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
46.1
3.99
< 1.0
796
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Minimum
Reporting Preparation
Limit
1.00
0.100
1.0
25.0
1.0
1.0
EPA300.0
EPA353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1794
Date/Time
6/26/24
6/25/24
6/24/24
6/24/24
6/24/24
6/24/24
Analysis
Date/Time
6/27/24
6/25/24
6/24/24
6/24/24
6/24/24
6/24/24
~
Page 9 of 18
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-08_06132024
Matrix: Water
Date Sampled: 6/13/24 6:09
Inorganic
Chloride
Nitrate + Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
54.7
0.544
< l.0
5.5
< l.0
< l.0
Proiect Name: 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
l.0
l.0
l.0
l.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 82600/50308
EPA 82600/50308
EPA 8260O/5030B
EPA 8260O/5030B
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/l 9/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24Fl276-18
Analysis
Date/Time
6/18/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
Page 20 of 36
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-09_06122024
Matrix: Water
Date Sampled: 6/12/24 7:43
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
38.1
0.791
< 1.0
3.6
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260O/5030B
EPA 8260O/5030B
EPA 8260O/5030B
EPA 8260O/5030B
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24Fl276-16
Analysis
Date/Time
6/18/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
Flag(s)
Page 18 of 36
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
l.ABORAfORIE:S
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-10_06202024
Matrix: Water
Date Sampled: 6/20/24 7:10
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
41.4
2.40
< 1.0
220
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
25 .0
1.0
1.0
PO#:
Receipt: 6/21/24 11:01 @-1.1 ·c
Date Reported: 7/3/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1794
Preparation
Date/Time
6/26/24
6/25/24
6/24/24
6/24/24
6/24/24
6/24/24
Lab ID: 24Fl 794-04
Analysis
Date/Time
6/26/24
6/25/24
6/24/24
6/24/24
6/24/24
6/24/24
Flag(s)
Page 6 of 18
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
i..ABOHAr'0F-!IES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-11_05292024
Matrix: Water
Date Sampled: 5/29/24 12:23
I norganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
45.1
6.81
< 1.0
4110
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
1ifil!!
1.00
0.200
1.0
100
1.0
1.0
PO#:
Receipt: 5/31/24 12:15@ 2.9 ·c
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24E2464
Preparation
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Lab ID: 24E2464-14
Analysis
Date/Time
6/6/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Flag(s)
Page 16 of 27
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
:.ABO=!ATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-12_06112024
Matrix: Water
Date Sampled: 6/11/24 6:30
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
53.0
3.49
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 82600/50308
EPA 82600/50308
EPA 82600/50308
EPA 8260O/5030B
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24F1276-02
Analysis
Date/Time
6/17/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
~
Page 4 of 36
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
-ABOl!Ar □RIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-13_06112024
Matrix: Water
Date Sampled: 6/11/24 7:15
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
63.0
4.66
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 °C
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260O/5030B
EPA 8260O/5030B
EPA 8260O/5030B
EPA 8260O/5030B
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24Fl276-05
Analysis
Date/Time
6/17/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
Flag{s)
Page 7 of 36
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-14_06122024
Matrix: Water
Date Sampled: 6/12/24 6:24
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
47.0
6.86
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.200
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@1.2°C
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24F1276-07
Analysis
Date/Time
6/17/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
Page 9 of 36
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
lAB0RAf0RIE$
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: MW-26_05292024
Matrix: Water
Date Sampled: 5/29/24 12:08
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
60.1
2.16
< 1.0
4160
< 1.0
1.2
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
100
1.0
1.0
PO#:
Receipt: 5/31/24 12:15 @2.9 ·c
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24E2464
Preparation
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Lab ID: 24E2464-06
Analysis
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
.E!.!!ml
Page 8 of 27
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy , UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH·FORD
tABOiilATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID : TW4-16_06202024
Matrix : Water
Date Sampled: 6/20/24 7:00
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\olatilr Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
93 .8
4.63
< 1.0
89 .1
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/21/24 11:01@ -1.1 ·c
Date Reported: 7/3/2024
Project Name : 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1794
Preparation
Datemme
6/26/24
6/25 /24
6/24/24
6/24/24
6/24/24
6/24/24
Lab ID: 24Fl 794-03
Analysis
Date/Time
6/26/24
6/25/24
6/24/24
6/24/24
6/24/24
6/24/24
Flag(s)
Page 5 of 18
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
lABORATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-16R_06192024
Matrix: Water
Date Sampled: 6/19/24 7:50
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
< 1.00
< 0.100
< 1.0
2.0
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/21/24 11:01 @-1.1 ·c
Date Reported: 7/3/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1794
Preparation
Date/Time
6/27/24
6/25/24
6/24/24
6/24/24
6/24/24
6/24/24
Lab ID: 24Fl 794-01
Analysis
Date/Time
6/27/24
6/25/24
6/24/24
6/24/24
6/24/24
6/24/24
Flag(s)
Page 3 of 18
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
l.ABORATOP.IE.S
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: MW-32_06192024
Matrix: Water
Date Sampled: 6/19/24 11:50
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
38.2
< 0.100
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/21/24 11 :01 @ -1.1 ·c
Date Reported: 7/3/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1794
Preparation
Dateffime
6/26/24
6/25/24
6124124
6124124
6124124
6124124
Lab ID: 24Fl 794-02
Analysis
Date/Time
6126124
6125/24
6124/24
6124124
6124124
6124124
Flag(s)
Page 4 of 18
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID : TW4-18_06132024
Matrix: Water
Date Sampled: 6/13/24 7:07
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatik Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
46.5
4 .06
< 1.0
49.3
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA 353 .2
EPA 8260D/50308
EPA 8260D/5 0308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24F1276
Preparation
Date/Time
6/17124
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID : 24F1276-22
Analysis
Date/Time
6/18/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
Page 24 of 36
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-19_05292024
Matrix: Water
Date Sampled: 5/29/24 13:35
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
fu!!!.!!
135
0.833
I.I
1030
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
!d.!!!.i!
1.00
0.100
1.0
50.0
1.0
1.0
PO#:
Receipt: 5/31/24 12:15 @2.9 ·c
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24E2464
Preparation
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Lab ID: 24E2464-04
Analysis
Date/Time
6/5/24
6/6/24
6/5/24
615124
6/5/24
6/5/24
Flag(s)
Page 6 of 27
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
iARORATQRll:S
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID : TW4-21_05292024
Matrix: Water
Date Sampled : 5/29/24 10:15
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\'olatilc Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
478
32 .2
< 1.0
1210
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
!d!!!!.!
10.0
1.00
1.0
50.0
1.0
1.0
PO#:
Receipt: 5/31/24 12:15@ 2.9 °C
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24E2464
Preparation
Date/Time
6/6/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Lab ID: 24E2464-05
Analysis
Date/Time
6/6/24
6/6/24
6/5/24
6/5 /24
6/5/24
6/5/24
Flag(s)
Page 7 of 27
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
LAB0~Af0RIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID : TW4-22_05292024
Matrix : Water
Date Sampled: 5/29/24 10:45
Inorganic
Chloride
Nitrate + Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
510
55.3
< 1.0
3670
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
1!!!!.!!
5 .00
2.00
1.0
100
1.0
1.0
PO#:
Receipt: 5/31/24 12:15 @2.9 ·c
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
EPA300.0
EPA353 .2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24E2464
Preparation
Date/Time
6/5 /24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Lab ID: 24E2464-13
Analysis
Date/Time
6/6/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Page 15 of 27
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID : TW4-23_06122024
Matrix: Water
Certificate of Analysis
PO#:
Receipt: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Date Sampled : 6/12/24 6:50 Sampled By: Tanner Holliday
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\'olatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
51.2
<0 .100
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name : 2nd Quarter Chloroform
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Minimum
Reporting Preparation
Limit
1.00
0.100
1.0
1.0
1.0
1.0
Method
EPA300.0
EPA 353 .2
EPA 82600/50308
EPA 82600/50308
EPA 82600/50308
EPA 82600/5030B
CtF WO#: 24F1276
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24Fl276-10
Analysis
Date/Time
6/18/24
6/20/24
6/18/24
6/18 /24
6/18/24
6/18/24
Page 12 of 36
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHE M TECH-FORD
!..ABORATORIE~
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID : TW4-24_05292024
Matrix: Water
Date Sampled : 5/29/24 10:35
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
891
33 .7
< 1.0
66.2
< 1.0
< 1.0
Proiect Name : 2nd Quarter Chloroform 2024
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
10.0
1.00
1.0
1.0
1.0
1.0
PO#:
Receipt: 5/31/24 12:15@ 2.9 ·c
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/5030B
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24E2464
Preparation
Date/Time
6/6/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Lab ID : 24E2464-02
Analysis
Date/Time
6/6/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Flag(s)
Page 4 of 27
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
lABO~ATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-25_05292024
Matrix: Water
Date Sampled: 5/29/24 10:25
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
77.2
1.12
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
.Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 5/31/24 12:15@ 2.9 °C
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24E2464
Preparation
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Lab ID: 24E2464-01
Analysis
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Page 3 of 27
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
:..ABOAATORICS
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-26_06202024
Matrix: Water
Date Sampled: 6/20/24 7:32
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\'olatilc Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
31.5
10.5
< 1.0
604
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.500
1.0
25.0
1.0
1.0
PO#:
Receipt: 6/21/24 11 :01 @ -1.1 ·c
Date Reported: 7/3/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1794
Preparation
Date/Time
6/26/24
6/25/24
6/24/24
6/24/24
6/24/24
6/24/24
Lab ID: 24Fl 794-06
Analysis
Date/Time
6/27/24
6/25/24
6/24/24
6/24/24
6/24/24
6/24/24
Flag(s)
Page 8 of 18
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-27_06122024
Matrix: Water
Date Sampled: 6/12/24 7:34
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
27.4
15.7
< 1.0
3.0
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.500
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
EPA300.0
EPA 353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24Fl276-15
Analysis
Date/Time
6/18/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
E!ru:{fil
Page 17 of 36
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
a.ABORArORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-28_06112024
Matrix: Water
Date Sampled: 6/11/24 6:40
Inorganic
Chloride
Nitrate + Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
65.4
11.6
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.500
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 82600/50308
EPA 82600/50308
EPA 82600/5030B
EPA 82600/50308
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24Fl276-03
Analysis
Date/Time
6/17/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
fil!!g{tl
Page 5 of 36
I Chemtech-F ord Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
L.ABORAfORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-29_06202024
Matrix: Water
Date Sampled: 6/20/24 7:22
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
41.3
2.83
< 1.0
441
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
25.0
1.0
1.0
PO#:
Receipt: 6/21/24 11:01 @-1.1 ·c
Date Reported: 7/3/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1794
Preparation
Date/Time
6/26/24
6/25/24
6/24/24
6/24/24
6/24/24
6/24/24
Lab ID: 24Fl 794-05
Analysis
Date/Time
6/27/24
6/25/24
6/24/24
6/24/24
6/24/24
6/24/24
Flag(s)
Page 7 of 18
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
l.AflQ.L!AtORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-30_06132024
Matrix: Water
Date Sampled: 6/13/24 6:41
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
34.7
3.53
< 1.0
37.8
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform
www.ChemtechFord.com
_Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 °C
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260O/5030B
EPA 8260O/5030B
EPA 8260O/5030B
EPA 8260O/5030B
CtF WO#: 24F1276
Preparation
Dateffime
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24F1276-20
Analysis
Date/Time
6/18/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
fugffi
Page 22 of 36
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
:._ABO.=!ArORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-31_06122024
Matrix: Water
Date Sampled: 6/12/24 6:34
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\ olatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
45.4
0.558
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 82600/50308
EPA 82600/50308
EPA 82600/50308
EPA 82600/50308
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24F1276-08
Analysis
Date/Time
6/18/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
Page 10 of 36
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
:._AeO~Ar ORIE s
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-32_06112024
Matrix: Water
Date Sampled: 6/11/24 7:00
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\ olatik Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
53.3
2.22
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@1.2"C
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24Fl276-04
Analysis
Date/Time
6/17/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
Page 6 of 36
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
Energy Fuels Resources, Inc .
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-32R_06102024
Matrix: Water
Date Sampled: 6/10/24 13:30
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
< 1.00
<0.100
< 1.0
12.6
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 °C
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260O/5030B
EPA 8260O/5030B
EPA 8260O/5030B
EPA 8260O/5030B
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24Fl276-01
Analysis
Date/Time
6/17/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
Page 3 of 36
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
;_ABQ!:!Al"ORIE!i
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-33_06132024
Matrix: Water
Date Sampled: 6/13/24 6:51
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
53.2
5.90
< 1.0
39.9
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.200
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 "C
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24F1276-21
Analysis
Date/Time
6/18/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
Page 23 of 36
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID : TW4-34_06122024
Matrix: Water
Date Sampled: 6/12/24 7:07
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\ olatilc Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
20.3
1.45
< 1.0
1.4
< 1.0
< 1.0
Proiect Name : 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24F1276-12
Analysis
Date/Time
6/18/24
6/20/24
6/18/24
6/18 /24
6/18/24
6/18/24
fugffi
Page 14 of 36
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
~ABOMAiOR I ES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID : TW4-35_06122024
Matrix : Water
Date Sampled : 6/12/24 7:26
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
\ olatilc Organic Compounds
Carbon Tetrachloride
Chlorofonn
Chloromethane
Methylene Chloride
Result
29.2
2 .16
< 1.0
2.2
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0 .100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@1 .2"C
Date Reported: 6/27/2024
Project Name : 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/1 8/24
6/18/24
6/18/24
6/18/24
Lab ID : 24F1276-14
Analysis
Date/Time
6/18 /24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
Page 16 of 36
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
:.AB◊11.ATOR I ES.
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID : TW4-36_06122024
Matrix: Water
Date Sampled : 6/12/24 6:16
Inorganic
Chloride
Nitrate+ Nitrite, Total , as N
\ olatik Organic Compounds
Carbon Te trachloride
Chloroform
Chloromethane
Methylene Chloride
69.5
0 .147
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name : 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/1 8/24
6/1 8/24
Lab ID: 24Fl276-06
Analysis
Date/Time
6/17/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
Page 8 of 36
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH -FORD
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID : TW4-37 _05292024
Matrix: Water
Date Sampled: 5/29/24 10:55
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
208
22 .2
7 .6
13500
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
10.0
0.500
1.0
250
1.0
1.0
PO#:
Receipt: 5/31/24 12:15@ 2.9 ·c
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24E2464
Preparation
Date/Time
6/6/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Lab ID : 24E2464-15
Analysis
Date/Time
6/6/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
~
Page 17 of 27
I Chemtech-F ord Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
.ABO:iAUHIIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-38_06122024
Matrix: Water
Date Sampled: 6/12/24 6:59
Inorganic
Chloride
Nitrate + Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
44.1
9.32
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.200
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260O/5030B
EPA 82600/50308
EPA 8260O/5030B
EPA 8260O/5030B
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24Fl276-ll
Analysis
Date/Time
6/18/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
Flag(s)
Page 13 of 36
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-39_05292024
Matrix: Water
Date Sampled: 5/29/24 11 :58
Inorganic
Chloride
Nitrate + Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
84.9
4.22
2.6
4380
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
100
1.0
1.0
PO#:
Receipt: 5/31/24 12:15@ 2.9 ·c
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24E2464
Preparation
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Lab ID: 24E2464-08
Analysis
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Flag(s)
Page 10 of 27
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :(801) 262 -7299 F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
!.Ab0.tAT0RIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID : TW4-40_05292024
Matrix: Water
Date Sampled : 5/29/24 13:15
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Ch loromethane
Methylene Chloride
Result
39 .8
1.86
< 1.0
393
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
25 .0
1.0
1.0
PO#:
Receipt: 5/31/24 12:15@ 2.9 °C
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA 353 .2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24E2464
Preparation
Date/Time
6/5 /24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Lab ID: 24E2464-03
Analysis
Date/Time
6/5/24
6/6/24
6/5 /24
6/5/24
6/5/24
6/5/24
Page 5 of 27
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :(801) 262 -7299 F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CH EMT ECH-FORD
~ARORATOFl:IES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID : TW4-41_05292024
Matrix: Water
Date Sampled : 5/29/24 12:55
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
41.4
5 .83
< 1.0
1660
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug /L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.200
1.0
50.0
1.0
1.0
PO#:
Receipt: 5/31/24 12:15@ 2.9 ·c
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353 .2
EPA 82600/50308
EPA 82600/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24E2464
Preparation
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Lab ID : 24E2464-09
Analysis
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Page 11 of 27
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
•~AB0P.AT0RIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-42_06042024
Matrix: Water
Date Sampled: 6/4/24 12:25
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
fufil!!!
23.5
3.52
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
10.0
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/6/24 11:00 @4.3 ·c
Date Reported: 6/19/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24F0441
Preparation
Date/Time
6/8/24
6/14/24
6/11/24
6/11/24
6/11/24
6/11/24
Lab ID: 24F0441-02
Analysis
Date/Time
6/8/24
6/14/24
6/11/24
6/11/24
6/11/24
6/11/24
.E!.!!&{fil
Page 4 of 11
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
lABOl!A!ORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-43_06122024
Matrix: Water
Date Sampled: 6/12/24 6:41
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chlorornethane
Methylene Chloride
42.3
0.561
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24F1276-09
Analysis
Date/Time
6/18/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
Page 11 of 36
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
~ABO~ATORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-60_05292024
Matrix: Water
Date Sampled: 5/29/24 14:00
I norganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
< 1.00
<0.100
< 1.0
10.0
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 5/31/24 12:15@ 2.9 ·c
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24E2464
Preparation
Date/Time
6/5/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
Lab ID: 24E2464-16
Analysis
Date/Time
6/6/24
6/6/24
6/5/24
6/5/24
6/5/24
6/5/24
.fulilll
Page 18 of 27
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
!.ABO'CArQRIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: TW4-65_06112024
Matrix: Water
Date Sampled: 6/11/24 7:00
Inorganic
Chloride
Nitrate + Nitrite, Total, as N
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
53.7
2.07
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform
www.ChemtechFord.com
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/5030B
EPA 8260O/5030B
EPA 8260O/5030B
EPA 8260D/5030B
CtF WO#: 24F1276
Preparation
Date/Time
6/17/24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24Fl276-l 7
Analysis
Date/Time
6/18/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
Page 19 of 36
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
~,1,BQIIATORIE~
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID : TW4-70_06132024
Matrix: Water
Date Sampled : 6/13/24 6:24
Inorganic
Chloride
Nitrate+ Nitrite, Total, as N
Volatik Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
51.8
7 .96
< l.0
8 .1
< 1.0
< l.O
Proiect Name: 2nd Quarter Chloroform
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.200
1.0
1.0
l.0
1.0
PO#:
Receipt: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24F1276
Preparation
Date/Time
6/18 /24
6/19/24
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID : 24F1276-23
Analysis
Date/Time
6/19/24
6/20/24
6/18/24
6/18/24
6/18/24
6/18/24
fugOO
Page 25 of 36
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH·FORD
~ABOl!At'ORIES.
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID : TW4-75_06202024
Matrix: Water
Date Sampled: 6/20/24 7:00
Inorganic
Chloride
Nitrate + Nitrite, Total, as N
\olatik Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
92.1
4 .54
< 1.0
83.3
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
mg/L
mg/L
ug/L
ug/L
ug/L
ug/1..
Certificate of Analysis
Minimum
Reporting
Limit
1.00
0.100
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/21/24 11 :01 @ -1.1 ·c
Date Reported: 7/3/2024
Project Name : 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA300.0
EPA353.2
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1794
Preparation
Date/Time
6/26/24
6/25/24
6/24/24
6/24/24
6/24/24
6/24/24
Lab ID: 24Fl 794-08
Analysis
Date/Time
6/27/24
6/25/24
6/24/24
6/24/24
6/24/24
6/24/24
Flag(s)
Page 10 of 18
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID : Trip Blank
Matrix: Water
Date Sampled: 5/29/24 10:15
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name : 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
ug/L
ug /L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
1.0
1.0
1.0
PO#:
Receipt: 5/31/24 12:15 @2.9 ·c
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By : Tanner Holliday
Method
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24E2464
Preparation
Date/Time
6/5 /24
6/5/24
6/5/24
6/5/24
Lab ID : 24E2464-17
Analysis
Date/Time
6/5/24
6/5/24
6/5/24
6/5 /2 4
Page 19 of 27
Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CHEMTECH-FORD
~ABOc!AIORIE:5
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: Trip Blank
Matrix: Water
Date Sampled: 6/4/24 12:10
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/6/24 11 :00 @ 4.3 °C
Date Reported: 6/19/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
EPA 8260D/50308
CtF WO#: 24F0441
Preparation
Date/Time
6/11/24
6/11/24
6/11/24
6/11/24
Lab ID: 24F0441-03
Analysis
Date/Time
6/11/24
6/11/24
6/11/24
6/11/24
Page 5 of 11
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CH EMTECH-FORD
~ABOAALORIES
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: Trip Blank
Matrix: Water
Date Sampled: 6/10/24 13:30
\'olatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
< 1.0
< 1.0
< 1.0
< 1.0
Proiect Name: 2nd Quarter Chloroform
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: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name: 2nd Quarter Chloroform
Sampled By: Tanner Holliday
Method
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1276
Preparation
Date/Time
6/18/24
6/18/24
6/18/24
6/18/24
Lab ID: 24F1276-24
Analysis
Date/Time
6/18/24
6/18/24
6/18/24
6/18/24
.E!!l:(tl
Page 26 of 36
I Chemtech-Ford Laboratories 9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Serving the lntermountain West Since 1953
CH EMTECH-FORD
~ABQRATORIE!>
Energy Fuels Resources, Inc.
Tanner Holliday
6425 South Highway 191
Blanding, UT 84511
Sample ID: Trip Blank
Matrix: Water
Date Sampled: 6/19/24 7:50
Volatile Organic Compounds
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
Result
< 1.0
< 1.0
< 1.0
< 1.0
Project Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
Units
ug/L
ug/L
ug/L
ug/L
Certificate of Analysis
Minimum
Reporting
Limit
1.0
1.0
1.0
1.0
PO#:
Receipt: 6/21/24 11:01 @-1.1 ·c
Date Reported: 7/3/2024
Project Name: 2nd Quarter Chloroform 2024
Sampled By: Tanner Holliday
Method
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
EPA 8260D/5030B
CtF WO#: 24F1794
Preparation
Date/Time
6/24/24
6/24/24
6/24/24
6/24/24
Lab ID: 24Fl 794-09
Analysis
Date/Time
6/24/24
6/24/24
6/24/24
6/24/24
Flag(s)
Page 11 of 18
9632 South 500 West
CHEMTECH-FORD
,_.,.ao~,,ro~1;:·5
6/13/2024
Work Order: 24E2464
Project: 2nd Quarter Chloroform 2024
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
SeNing the lntermountain West since 1953
www.ChemtechFord.com
Page 1 of 27
CHEMTECH-FORD
i..ABOH.A.iORIES
Chemtech-Ford Laboratories
Serving the lntermountain West Since 1953
9632 South 500 West
Sandy, UT 84070
0 :(801) 262 -7299 F: [phone]
www. Chem tech Ford. com
Energy Fuels Resources, Inc.
Project: 2nd Quarter Chloroform 2024
Project Manager: Tanner Holliday
Laborato!)l ID Sam~le Name
24E2464-01 TW4-25_05292024
24E2464-02 TW4-24_05292024
24E2464-03 TW4-40 _ 05292024
24E2464-04 TW4-19_05292024
24E2464-05 TW4-21 _05292024
24E2464-06 MW-26 05292024
24E2464-07 TW4-01 _05292024
24E2464-08 TW4-39_05292024
24E2464-09 TW4-41 _05292024
24E2464-10 TW4-02_05292024
24E2464-11 MW-04_05292024
24E2464-12 TW4-04_05292024
24E2464-13 TW4-22 05292024
24E2464-14 TW4-11 _05292024
24E2464-15 TW4-37_05292024
24E2464-16 TW4-60_05292024
24E2464-17 Trip Blank
Sample Preparation
Work Order Report Narrative
All samples were prepared within method specified holding times . No preparation issues were noted .
Method Blanks
All blank values were within method acceptance criteria. No blank values exceeded the minimum reporting limit for any
analysis in this work order.
Laboratory Control Sampl es
All laboratory control samples were within method acceptance criteria, except as noted by qualifying flags . Batch XXXXXX,
which contains samples XXXXXX, had low LCS recoveries for XXXXX . It is important to note that certa in flags on an
individual analyte do not constitute failure of the method as a whole . EPA methodologies recogn ize that it may not be
possible for every compound to meet all recovery or percent difference criteria. The batch passed required method criteria
for these analytes .
Method Spikes
All method spike recoveries were within method acceptance criteria, except as noted by qualifying flags .
Method Sp ike Dup li cates
All method spike duplicates were within method acceptance criteria , except as noted by qualifying flags .
Corrective Actions
There are no corrective actions associated with th is work order .
Page 2 of 27
I
CHEMTECH-FORD
LABO~,UOR1ES
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: 5/31/24 12:15@ 2.9 ·c
Date Reported: 6/13/2024
Project Name: 2nd Quarter Chloroform 2024
l mg/L = one milligram per liter or I mg/kg= one milligram per kilogram = I part per million.
l 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 = l part per trillion .
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
CtF WO#: 24E2464
Page 20 of 27
American West
Analytical Laboratories
463W ,3600S. SallLakeCily,UT 84115
Phone# [phone] Toll Free# [phone]
Fax# (301 I 263-8687 Email [e-mail] 1~~ www.awal-labs.com
Client: Energy Fnels Resources, Inc,
Address: 6425 S. Hwy. 191
Blanding, UT 84511
Con1act: Tanner HoWday
Phone#: [phone] Cell#:
Email: th.oW.d•.,.-;.·..,a..crEYfu.cih.com; [e-mail]
Project Name: 2nd Quarter Chloroform 2024
Project#:
PO#:
Sampler Name: Tanner HoWday
Sample ID :
a
5
0
7
TW4-25_05292024
TW4-24_05292024
TW4-40_05292024
TW4-19_05292024
TW4-21_05292024
MW-26_05292024
TW4-01_05292024
TW4-39 _05292024
TW4-41_05292024
,a I TW4-02_05292024
1 MW-04_05292024
,, ' TW4-04_05292024
I TW4-22_05292024
1 TW4-11 _05292024
; TW4-37_05292024
10 TW4-60_05292024
TRIPBLAl'lK
Rellnquisnedb~ \,I 1,,,/-J✓../. _
Signs.llm.;1 'A nnrr rr-
Prtnl .N.ame Tanner Halllday V
Rel1nqu1shed by:
Slgoatwe
Print Narn13·
RellnqUIBhed by.
Siqnalure
PrinlNema:
A:eIInqu1ehad by:
Signalure
?rinlNe.ma:
Date Sampled
5/29/2024
5/29/2024
5/29/2024
5/29/2024
5/29/2024
6/29/2024
5/29/2024
5/29/2024
5/29/2024
5/29/2024
5/29/2024
5/29/2024
5/29/2024
5/29/2024
5/29/2024
6/29/2024
6/29/2024
Oat•
5/30/2024
Time:
113(1
Dela:
Time:
Dete:
Time:
Dale:
ITime:
Time
Sampled
1025
1035
1315
1336
1015
1208
1248
1158
1256
1232
1240
1303
1045
1223
1055
1400
1015
CHAIN OF CUSTODY
All analysis wDI be conducted using NELAP accredited melhods end ell data will be repor1ad using AWAL'a standard anal~ lists and reporting
llmll& (PQL) unleS& speclflcally requested otherwise on lhl& Chain of Cuslody and/or ellached documentellon
QC Level: Turn Around Time: Un[cu.J.olh!H am1ng~f1l0nl.Ji haw botln mado,
signed reports will be emailed by 5:00 pm on
3 Standard lhe day they ere due
X Include EDD:
LOCUS UPLOAD
EXCEL
Field Filtered For.
For Compliance With:
0 NELAP
D RCRA
□ CWA
D SOWA
□ ELAP / A2LA
c' □ NLLAP
"" c:i □ Non-Compllence
&i c:, o Other.
"' G' !! ~ ... c:,
~ :ll ., 0 10
]i .. 0 c:, C'I
::; c:, !12. Known Hazards 15 :z: "' 0 " N° :t. " a. &
0 E 0 u g .. Samele Comments .. "' IE
5 w X X X tJ l1>7Gl
5 w X X X AP \~'!,
5 w X X X W(?>\ t~;57 ,
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
5 w X X X
5 w X X X
6 w X X X
.s w X X X
5 w X X X
5 w X X X Sample Receipt Conditions:
)15ustody Seals Prese.nt J1'conect Contai ners
5 w X X X ;1"i;oc Included
(')cQC Complete
11£ '2."1 (o1
AWAL Lab Semple Set#
Page 1 of
I°"" O,ot.,.
Laboratory Use Only
Samples Wen,:
1 Shipped or hand deltverad
2 Ambient or Chllled
3 Temperature '2.-'\ ·c
4 Received Broken/Leaking
(lmproper1y Sealed)
V N
• Properly Praeerved
V N
Checked al bench
V N
e Received Wllhln
Holding Times
V N
COC Tape Wea: , Present on Outer Package
V N NA
2 Unbroken on Outer Package
V N NA
3 Pre&ent on Sample
V N NA
4 Unbroken on Semple
V N NA
( ) Headspace Present (VOC)
( ) Tempera ture Blonl<
~
on tolners lnlilct
5 w X X X C.OC and l~bels Match f1Rieiufuted wilhin Mold
v{Recewed on Ice ()Sufficient Sample Volume Checked by: /tt)_
3 w_ ~ ""'\
I
1::;:•v. ~_Al""./ O•IO .;.~ .VJ Special lnstrucUons:
Pr,~ I.Jt 4fc. o, n--:?J~
[1(8C8Mtdby. Data: See the Analytical Scope of Work for Reporting Limits and VOC
Ski-.-. analyte list.
Ti me
PrtntN■ma.:
Recetved Dy. Data: .UP\ t'l f9.1 "14lt 01 Cf1M.,t,i:\ S!analWe
Tima:
l='ri_r:.,.tN.ame:
Recelwd by: Dale:
Slon"'"'9 Pa£ Ti me
Pri.nt Name~ I
e21 of27
Analyte
QC Sample ID : BYF0161-BLKI
Date Prepared: 06/05 /2024
Chloride
QC Sample ID: BYF0l98-BLKI
Date Prepared: 06/05/2024
Chloride
QC Sample ID: BYF0249-BLK1
Date Prepared: 06/06/2 024
Chloride
QC Sample ID: BYF0l61-BSI
Date Prepared: 06/05/2024
Chloride
QC Sample ID: BYF0l98-BSI
Date Prepared: 06 /05 /2024
Chloride
QC Sample ID: BYF0249-BSI
Date Prepared: 06/06/2024
Chloride
QC Sample ID: BYF0l61-MSI
Date Prepared: 06/05/2024
Chloride
QC Sample ID: BYF0161-MS2
Date Prepared: 06/05/2024
Chloride
QC Sample ID: BYF0161-MSD1
Date Prepared: 06/05/2024
Chloride
QC Sample ID: BYF0161-MSD2
Date Prepared: 06/05/2024
Chloride
CtF WO#: 24E2464
www.ChemtechFord.com
QC Report for Work Order (WO) -24E2464
% Rec RPD Limits RPD Max Result Source Cone
Blank -EPA 300.0
Batch: BYF0l61
Date Analyzed: 06 /05 /2 024 Units: mg/L
ND
Batch: BYF0198
Date Analyzed: 06/06/2024 Units : mg/L
ND
Batch: BYF0249
Date Analyzed: 06/06 /2024 Units : mg/L
ND
LCS -EPA 300.0
Batch: BYF0l61
Date Analyzed: 06/05/2024 Units: mg/L
101 90 -110 202
Batch: BYF0198
Date Analyzed: 06/06/2024 Units: mg/L
103 90 -110 207
Batch: BYF0249
Date Analyzed: 06 /06/2024 Units : mg/L
103 90 -110 207
Matrix Spike -EPA 300.0
Batch: BYF0161 QC Source Sample: 24E2464-01
Date Analyzed: 06/05/2024 Units : mg/L
106 80 -120 101 77 .2
Batch: BYF0l61 QC Source Sample: 24E2464-02
Date Analyzed: 06/05/2024 Units : mg/L
108 80 -120 887 862
Matrix Spike Dup -EPA 300.0
Batch: BYF0l61 QC Source Sample: 24E2464-01
Date Analyzed: 06/05/2024 Units: mg/L
110 0.900 80 -120 20 102 77.2
Batch: BYF0l61 QC Source Sample: 24E2464-02
Date Analyzed: 06/05/2024 Units : mg/L
113 0.116 BO -120 20 888 862
SpkValue MRL DF
1.00 1.00
1.00 1.00
1.00 1.00
200 1 .00 1.00
200 1.00 1.00
200 1.00 1.00
22.2 1.11 1.00
22 .2 1 .11 1.00
22.2 1.11 1.00
22 .2 1 .11 1.00
Page 22 of 27
Analyte
QC Sample ID : BYF0245-BLK1
Date Prepared: 06/06/2024
Nitrate + Nitrite, Total, as N
QC Sample ID: BYF0245-BS1
Date Prepared: 06/06/2024
Nitrate + Nitrite, Total, as N
QC Sample ID: BYF0245-MS 1
Date Prepared: 06/06 /2024
Nitrate+ Nitrite, Total, as N
QC Sample ID: BYF0245-MSD 1
Date Prepared: 06/06/2024
Nitrate + Nitrite , Total, as N
CtF WO#: 24E2464
www.ChemtechFord.com
QC Report for Work Order (WO) -24E2464
% Rec RPD Limits RPD Max Result Source Cone
Blank -EPA 353.2
Batch: BYF0245
Date Analyz~d: 06 /06 /2 024 Units : mg/L
ND
LCS -EPA 353.2
Batch: BYF0245
Date Analyzed: 06/06/2024 Units: mg/L
95.8 90 -110 1.92
Matrix Spike -EPA 353.2
Batch: BYF0245 QC Source Sample: 24E2464-01
Date Analyzed: 06/06/2024 Units : mg/L
93.8 90 -110 2.06 1.12
Matrix Spike Dup -EPA 353.2
Batch: BYF0245 QC Source Sample: 24E2464-01
Date Analyzed: 06/06/2024 Units: mg/L
94.5 0.340 90 -110 20 2.06 1 .12
Spk Value MRL DF
0 .100 1.00
2.00 0.100 1 .00
1.00 0.100 1.00
1.00 0.100 1.00
Page 23 of 27
Analyte
QC Sample ID : BYF0187-BLK1
Date Prepared: 06/05 /2024
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
QC Sample ID: BYF0187-BS1
Date Prepared : 06/05 /2024
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
QC Sample ID : BYF0187-MS1
Date Prepared: 06/05 /2024
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
QC Sample ID: BYF0187-MSD1
Date Prepared: 06/05/2024
Carbon Tetrachloride
Chloroform
Chloromethane
Methylene Chloride
CtF WO#: 24E2464
www.ChemtechFord.com
QC Report for Work Order (WO) -24E2464
% Rec RPD Limits RPD Max Result Source Cone Spk Value MRL DF
Blank -EPA 8260D
Batch: BYF0187
Date Analyzed: 06/05 /2024 Units : ug/L
ND 1.0 1.00
ND 1.0 1.00
ND 1.0 1.00
ND 1.0 1.00
LCS -EPA 8260D
Batch: BYF0187
Date Analyzed: 06/05/2024 Units : ug/L
109 70-130 10 .9 10 .0 1 .0 1.00
88.2 70 -130 8 .82 10 .0 1 .0 1.00
84.3 70 -130 8.43 10.0 1.0 1.00
85.6 70-130 8.56 10.0 1.0 1.00
Matrix Spike -EPA 8260D
Batch: BYF0187 QC Source Sample: 24E2464-0l
Date Analyzed: 06/05 /2024 Units : ug/L
94 .9 70 -130 47.4 ND 50.0 5 .0 1.00
74.4 70 -130 37.2 ND 50.0 5 .0 1.00
73 .6 70-130 36.8 ND 50.0 5 .0 1.00
82 .6 70 -130 41.3 ND 50.0 5 .0 1.00
Matrix Spike Dup -EPA 8260D
Batch: BYF0 187 QC Source Sample: 24E2464-0l
Date Analyzed: 06/05/2024 Units : ug/L
96.8 1.98 70 -130 20 48.4 ND 50.0 5.0 1.00
73 .5 1.22 70 -130 20 36.8 ND 50.0 5 .0 1.00
71 .7 2 .62 70 -130 20 35.8 ND 50.0 5.0 1.00
74.2 10.7 70 -130 20 37.1 ND 50.0 5 .0 1.00
Page 24 of 27
Surrogates Report for Work Order (WO) -24E2464
QCID Analyte
BYF0187-BLK1 1,2-Dichloroethane-d4
BYF0187-BLK1 4-Bromofluorobenzene
BYF0187-BLK1 Toluene-dB
BYF0187-BS1 1,2-Dichloroethane-d4
BYF0187-BS1 4-Bromofluorobenzene
BYF0187-BS1 Toluene-dB
BYF0187-MS1 1,2-Dichloroethane-d4
BYF0187-MS1 4-Bromofluorobenzene
BYF0187-MS1 Toluene-dB
BYF0187-MSD1 1,2-Dichloroethane-d4
BYF0187-MSD1 4-Bromofluorobenzene
BYF0187-MSD1 Toluene-dB
CtF WO#: 24E2464
www.ChemtechFord.com
% Rec LCL UCL Result
Blank -EPA 8260D
95.0 64 .2 126 9.50
99 .1 71.4 125 9.91
95.4 63 .2 129 9.54
LCS -EPA 8260D
94.4 64.2 126 9.44
100 71.4 125 10.0
97 .2 63 .2 129 9 .72
Matrix Spike • EPA 8260D
91.5 64 .2 126 45.8
95.2 71.4 125 47.6
97.7 63 .2 129 48.8
Matrix Spike Dup -EPA 8260D
86.4 64.2 126 43.2
99.5 71.4 125 49 .8
98.4 63 .2 129 49.2
SpkValue Batch DF
10.0 BYF0187 1.00
10.0 BYF0187 1.00
10.0 BYF0187 1.00
10.0 BYF0187 1.00
10 .0 BYF0187 1.00
10.0 BYF0187 1.00
50.0 BYF0187 1.00
50 .0 BYF0187 1.00
50.0 BYF0187 1.00
50 .0 BYF0187 1.00
50.0 BYF0187 1.00
50.0 BYF0187 1.00
Page 25 of 27
Surrogate Recoveries (Field Samples)
LabNumber Analyte Result SpkLvl %Rec LCL UCL Qualifier
8260 Low Level Volatiles
24E2464-01 4-Bromofluorobenzene 9.47 10.0 94.7 71.4 125
24E2464-01 Toluene-dB 10.0 10.0 100 63.2 129
24E2464-01 1,2-Dichloroethane-d4 9.93 10.0 99.3 64.2 126
8260 Low Level Volatiles
24E2464-02 1,2-Dichloroethane-d4 9.82 10.0 98.2 64.2 126
24E2464-02 4-Bromofluorobenzene 10.4 10.0 104 71.4 125
24E2464-02 Toluene-dB 9.87 10.0 98.7 63.2 129
8260 Low Level Volatiles
24E2464-03 4-Bromofluorobenzene 9.35 10.0 93.5 71.4 125
24E2464-03 Toluene-dB 10.0 10.0 100 63.2 129
24E2464-03 1,2-Dichloroethane-d4 10.1 10.0 101 64.2 126
8260 Low Level Volatiles
24E2464-04 Toluene-dB 10.0 10.0 100 63.2 129
24E2464-04 4-Bromofluorobenzene 10.5 10.0 105 71.4 125
24E2464-04 1,2-Dichloroethane-d4 10.2 10.0 102 64.2 126
8260 Low Level Volatiles
24E2464-05 Toluene-dB 9.56 10.0 95.6 63.2 129
24E2464-05 4-Bromofluorobenzene 10.3 10.0 103 71.4 125
24E2464-05 1,2-Dichloroethane-d4 9.32 10.p 93.2 64.2 126
8260 Low Level Volatiles
24E2464-06 1,2-Dichloroethane-d4 9.37 10.0 93.7 64.2 126
24E2464-06 4-Bromofluorobenzene 9.98 10.0 99.8 71.4 125
24E2464-06 Toluene-dB 9.58 10.0 95.8 63.2 129
8260 Low Level Volatiles
24E2464-07 Toluene-dB 9.82 10.0 98.2 63.2 129
24E2464-07 1,2-Dichloroethane-d4 10.2 10.0 102 64.2 126
24E2464-07 4-Bromofluorobenzene 10.1 10.0 101 71.4 125
8260 Low Level Volatiles
24E2464-08 4-Bromofluorobenzene 10.4 10.0 104 71.4 125
24E2464-08 Toluene-dB 10.0 10.0 100 63.2 129
24E2464-08 1,2-Dichloroethane-d4 9.52 10.0 95.2 64.2 126
8260 Low Level Volatiles
24E2464-09 1,2-Dichloroethane-d4 10.1 10.0 101 64.2 126
24E2464-09 4-Bromofluorobenzene 10.1 10.0 101 71.4 125
24E2464-09 Toluene-dB 10.0 10.0 100 63.2 129
8260 Low Level Volatiles
24E2464-10 Toluene-dB 9.85 10.0 98.5 63.2 129
24E2464-10 4-B romofl uorobenzene 9.29 10.0 92.9 71.4 125
24E2464-10 1,2-Dichloroethane-d4 10.1 10.0 101 64.2 126
CtF WO#: 24E2464
www.ChemtechFord.com Page 26 of 27
8260 Low Level Volatiles
24E2464-11 Toluene-dB
24E2464-11 4-Bromofluorobenzene
24E2464-11 1,2-Dichloroethane-d4
8260 Low Level Volatiles
24E2464-12 1,2-Dichloroethane-d4
24E2464-12 4-Bromofluorobenzene
24E2464-12 Toluene-dB
8260 Low Level Volatiles
24E2464-13 Toluene-dB
24E2464-13 4-Bromofluorobenzene
24E2464-13 1,2-Dichloroethane-d4
8260 Low Level Volatiles
24E2464-14 1,2-Dichloroethane-d4
24E2464-14 4-Bromofluorobenzene
24E2464-14 Toluene-dB
8260 Low Level Volatiles
24E2464-15 1,2-Dichloroethane-d4
24E2464-15 4-Bromofluorobenzene
24E2464-15 Toluene-dB
8260 Low Level Volatiles
24E2464-16 1,2-Dichloroethane-d4
24E2464-16 4-B romofl uorobenzene
24E2464-16 Toluene-dB
8260 Low Level Volatiles
24E2464-17 Toluene-dB
24E2464-17 1,2-Dichloroethane-d4
24E2464-17 4-Bromofluorobenzene
CtF WO#: 24E2464
www.ChemtechFord.com
9.85 10.0
9.50 10.0
9.29 10.0
9.23 10.0
9.39 10.0
9.78 10.0
9.84 10.0
10.1 10.0
10.2 10.0
9.49 10.0
10.3 10.0
9.52 10.0
8.67 10.0
9.88 10.0
9.66 10.0
10.1 10.0
9.41 10.0
9.61 10.0
10.0 10.0
9.66 10.0
9.62 10.0
98.5 63.2 129
95.0 71.4 125
92.9 64.2 126
92.3 64.2 126
93.9 71.4 125
97.8 63.2 129
98.4 63.2 129
101 71.4 125
102 64.2 126
94.9 64.2 126
103 71.4 125
95.2 63.2 129
86.7 64.2 126
98.8 71.4 125
96.6 63.2 129
101 64.2 126
94.1 71.4 125
96.1 63.2 129
100 63.2 129
96.6 64.2 126
96.2 71.4 125
Page 27 of 27
9632 South 500 West
CHEMTECH·FORD
'· ,, a O ~•\TO~ Ii: ·5
6/19/2024
Work Order: 24F0441
Project: 2nd Quarter Chloroform 2024
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
Page 1 of 11
CHEMTECH-FORD
LABORATORIES
Chemtech-F ord Laboratories
Serving the lntermountain West Since 1953
9632 South 500 West
Sandy, UT 84070
0 :[phone] F: [phone]
www.ChemtechFord.com
Energy Fuels Resources, Inc.
Project: 2nd Quarter Chloroform 2024
Project Manager: Tanner Holliday
Laboratory ID
24F0441-01
24F0441-02
24F0441-03
Sample Name
TW4-03 _ 06042024
TW4-42_06042024
Trip Blank
Sample Preparation
Work Order Report Narrative
All samples were prepared within method specified holding times . No preparation issues were noted.
Method Blanks
All blank values were within method acceptance criteria. No blank values exceeded the minimum reporting limit for any
analysis in this work order .
Laboratory Control Samples
All laboratory control samples were within method acceptance criteria.
Method Spikes
All method spike recoveries were within method acceptance criteria, except as noted by qualifying flags .
Method Sp ike Duplicates
All method spike duplicates were within method acceptance criteria, except as noted by qualifying flags.
Corrective Actions
There are no corrective actions associated with this work order.
Page 2 of 11
Chemtech-Ford Laboratories
Serving the lntermountain West Since 1953
CHEMTECH-FORD
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: 6/6/24 11 :00 @ 4.3 ·c
Date Reported: 6/19/2024
Project Name: 2nd Quarter Chloroform 2024
ND = Not detected at the corresponding Minimum Reporting Limit (MRL).
I mg/L = one milligram per liter or I mg/kg= one milligram per kilogram = 1 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 .
Flag Descriptions
QM-RPO= 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 .
Proiect Name : 2nd Quarter Chloroform 2024
www.ChemtechFord.com
CtF WO#: 24F0441
Page 6 of 11
10, '
I
u 1 ·~ ' ,. '
15 i
10 ' ,,
American West
Analytical Laboratories
463 w. 3600 s. Sall Lake City. UT 84115
Phone# [phone] Toll Free# [phone]
1~~ Fax # {801) 263-8687 Email awal@awal-labs ,com
www.awal-labs.com
Client Energy Fuela Reso~ces, Inc.
Address: 6425 8. Hwy. 191
Blanding, UT 84511
Conlsct: Tanner Holliday
Phone#: [phone] Cell#:
Email: thoWday@:energyfa.ela.com; [e-mail]
Project Name: 2nd Quarter Chloroform 2024
Project#:
PO#:
Sampler Name: Tanner Holliday
Z'if"O LJLJ.I Samele ID: Date Samoled
TW4-03_06042024 6/4/2024
TW4-42_06042024 6/4/2024
TRIP BLANK 6/4/2024
~ .
Ro t,nqu i ohod 0,,-\n ,1fA'r(_., fj-,.f~~/ 0 4I IU '
l e,t..n.!UUIQ It G~024 -/) """' PrlnlN~ To nl"ltfrlio1Utt.w-1100
R11Ut'1Q1.11shad by· DMec
Slnneture
Tlme:
Prlnl Name· :
RellnqulShe<I by: Dale
Signature
llme:
Print Nome:
Re11nqu1shed by: Osle:
Sianature
n me:
Prlnl Nome:
CHAIN OF CUSTODY
All analysis will be conducted using NELAP accredited methods end ell data will be reported using AWAL's slandard anslyte lislS and reporting
llmils (POL) unless speclflcally requested otherwise on lhis Chain of CuBlody end/or attached documentation
I QC Level: I Turn Around Time: Unless other errengemenls haw been made,
signed report& will be emailed by 5:00 pm on
3 Standard Iha day they ere due
X Include EDD:
LOCUS UPLOAD
EXCEL
Field Altered For.
For Compliance With:
□ NELAP
D RCRA
□ CWA
□ SOWA
□ ELAP / A2LA
0 □ NLLAP
"" 0 □ Non-Compliance
~ C, D Other.
!2. "' G ; :il .. C, 0 IC C .,
C, "' ]j m 5,l C ::;; C, ~ Known Hazards It) 0 " ..... ::t. I!! Time u Q. s & E
Samoled 't5 .. 0 g Samole Comments .. U) II!:
1210 5 w X X X
1225 5 w X X X
1210 3 w X
~ 1.2-0-'1
tv ~370\
l\,.1,-~ 1 11:a3 7
RoooMld~I r;ti.Q1./7'7k()\_
Slarw1N r • \ r:51 f.;, I Z'f ' tOO Special Instructions:
r""'
Prlnl NIII Mllo "
AWAL Lab Sample Sel #
Page 1 of 1
1011 1.1 0 :ill': I
Laboratory Use Only
Semptes Were:
1 Shipped or hend dellwred
2
3
Atfl.t:iic l'II or Ch1ll od¥
To.mpiau11ure ' .S •c
4 Rec:elved Broken/leaking
(Improperly Sealed)
V N
5 Properly Proserwd
V N
Checked et bench
V N
6 Received Within
Holdlng Tlmes
V N
CCC Tepe Wea:
1 Presenl on Ouler Package
V N NA
2 Unbroken on Culer Package
V N NA
3 Present on Sample
V N NA
4 Unbroken on Semple
V N NA
Discrepancies Between Sample
Labels end CCC Record?
V N
Ro ~ ~~5 IZ. ~87 ~'-l '( 03 qz.:z_;:? 3ll5 ··,tical Scope of Work for Reporting Limits and voe
Sip ,
""" Sample Receipt Conditions:
Ro , \L_ Custody Seals Present (\ Correct Containers ( ) Headspace Present (VOC) ' s;io ~ Containers Intact (-.)_ COC Included ( ) Temperature Blank
"'" l\t COC and Labels Match 1-.,!_ COC Complete N.._R<><l'l vcd ;J;in Hold
Ro < ~ Received on Ice '\J_ Sufficient Sample Volume
Slo, Checked by:
r--n PagE
PrN'I I Name :
e 7 of 11
Analyte
QC Sample ID : BYF0344-BLK1
Date Prepared: 06 /08 /2024
Chloride
QC Sample ID: BYF0344-BS1
Date Prepared: 06/08/2024
Chloride
QC Sample ID : BYF0344-MS 1
Date Prepared: 06/08 /2024
Chloride
QC Sample ID: BYF0344-MSD1
Date Prepared: 06/08/2024
Chloride
CtF WO#: 24F0441
www.ChemtechFord.com
QC Report for Work Order (WO) -24F0441
% Rec RPO Limits RPO Max Result Source Cone
Blank -EPA 300.0
Batch: BYF0344
Date Analyzed: 06 /08/2024 Units : mg/L
ND
LCS -EPA 300.0
Batch: BYF0344
Date Analyzed: 06/08/2024 Units: mg/L
101 90 -110 201
Matrix Spike -EPA 300.0
Batch: BYF0344 QC Source Sample: 24F0441-0l
Date Analyzed: 06/08 /2024 Units : mg/L
97.3 80 -120 221 26.4
Matrix Spike Dup -EPA 300.0
Batch: BYF0344 QC Source Sample: 24F0441-0l
Date Analyzed: 06/08/2024 Units: mg/L
97.5 0.154 80 -120 20 221 26.4
SpkValue MRL OF
1.00 1.00
200 1.00 1.00
200 11 .0 1.00
200 11 .0 1.00
Page 8 of 11
Analyte
QC Sample ID: BYF0324-BLK1
Date Prepared: 06/07/2024
Nitrate + Nitrite, Total, as N
QC Sample ID: BYF0685-BLK1
Date Prepared: 06/14/2024
Nitrate + Nitrite, Total, as N
QC Sample ID: BYF0324-BS1
Date Prepared: 06/07/2024
Nitrate + Nitrite, Total, as N
QC Sample ID: BYF0685-BS1
Date Prepared: 06/14/2024
Nitrate + Nitrite, Total, as N
QC Sample ID: BYF0324-MS1
Date Prepared: 06/07/2024
Nitrate + Nitrite, Total, as N
QC Sample ID: BYF0324-MSD1
Date Prepared: 06/07/2024
Nitrate + Nitrite, Total, as N
CtF WO#: 24F0441
www.ChemtechFord.com
QC Report for Work Order (WO) -24F0441
%Rec RPD Limits RPD Max Result Source Cone
Blank -EPA 353.2
Batch: BYF0324
Date Analyzed: 06/07/2024 Units: mg/L
ND
Batch: BYF0685
Date Analyzed: 06/14/2024 Units: mg/L
ND
LCS -EPA 353.2
Batch: BYF0324
Date Analyzed: 06/07/2024 Units: mg/L
88.4 90-110 1.77
Batch: BYF0685
Date Analyzed: 06/14/2024 Units: mg/L
91.0 90 -110 1.82
Matrix Spike -EPA 353.2
Batch: BYF0324 QC Source Sample: 24F0441-0l
Date Analyzed: 06/07/2024 Units: mg/L
91.0 90 -110 7.33 6.42
Matrix Spike Dup -EPA 353.2
Batch: BYF0324 QC Source Sample: 24F0441-01
Date Analyzed: 06/07/2024 Units: mg/L
97.7 0.910 90 -110 20 7.40 6.42
SpkValue MRL DF
0.100 1.00
0.100 1.00
2.00 0.100 1.00
2.00 0.100 1.00
1.00 0.500 5.00
1.00 0.500 5.00
Page 9 of 11
QC Report for Work Order (WO) -24F0441
Analyte % Rec RPD Limits RPD Max Result Source Cone
Blank -EPA 8260D
QC Sample ID: BYF0465-BLKI Batch: BYF0465
Date Prepared: 06 /11 /2024 Date Analyzed: 06 / l l /2024 Units :
Carbon Tetrachloride ND
Chloroform ND
Chloromethane ND
Methylene Chloride ND
LCS -EPA 8260D
QC Sample ID: BYF0465-BS I Batch: BYF0465
Date Prepared: 06/11/2024 Date Analyzed: 06/11/2024 Units :
Carbon Tetrachloride 101 70 -130 10.1
Chloroform 89 .9 70 -130 8.99
Chloromethane 74.5 70-130 7.45
Methylene Chloride 85.9 70 -130 8.59
Matrix Spike -EPA 8260D
QC Sample ID: BYF0465-MS I Batch: BYF0465 QC Source Sample: 24F0441-0l
Date Prepared: 06/11/2024 Date Analyzed: 06 /11/2024 Units:
Carbon Tetrachloride 84 .9 70 -130 42.4 ND
Chloroform 80.6 70-130 40.3 ND
Chloromethane 64.4 70 -130 32 .2 ND
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 .
Methylene Chloride 76.2 70 -130 38.1 ND
Matrix Spike Dup -EPA 8260D
QC Sample ID : BYF0465-MSD I Batch: BYF0465 QC Source Sample: 24F0441-01
Date Prepared: 06/11/2024 Date Analyzed: 06 /11/2024 Units :
Carbon Tetrachloride 80 .1 5 .82 70 -130 20 40.0 ND
Chloroform 78 .9 2.13 70 -130 20 39.4 ND
Chloromethane 64.3 0 .155 70 -130 20 32 .2 ND
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 .
Methylene Chloride
CtF WO#: 24F0441
www.ChemtechFord.com
76.1 0.131 70 -130 20 38.0 ND
ug/L
ug/L
ug/L
ug /L
Spk Value MRL DF
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
Page 10 of 11
Surrogates Report for Work Order (WO) -24F0441
QC ID Analyte % Rec LCL UCL
Blank -EPA 8260D
BYF0465-BLK1 1,2-Dichloroethane-d4 87.0 64.2 126
BYF0465-BLK1 4-Bromofluorobenzene 96.7 71.4 125
BYF0465-BLK1 Toluene-dB 98.4 63.2 129
LCS -EPA 8260D
BYF0465-BS1 1,2-Dichloroethane-d4 90.7 64.2 126
BYF0465-BS 1 4-Bromofluorobenzene 98.2 71.4 125
BYF0465-BS 1 Toluene-dB 99.3 63.2 129
Matrix Spike -EPA 8260D
BYF0465-MS2 1,2-Dichloroethane-d4 89.9 64.2 126
BYF0465-MS1 1,2-Dichloroethane-d4 85.6 64.2 126
BYF0465-MS1 4-Bromofluorobenzene 97.6 71.4 125
BYF0465-MS2 4-Bromofluorobenzene 98.8 71.4 125
BYF0465-MS2 Toluene-dB 100 63.2 129
BYF0465-MS1 Toluene-dB 98.9 63.2 129
Matrix Spike Dup -EPA 8260D
BYF0465-MSD1 1,2-Dichloroethane-d4 86.2 64.2 126
BYF0465-MSD2 1,2-Dichloroethane-d4 86.9 64.2 126
BYF0465-MSD1 4-Bromofluorobenzene 97.0 71.4 125
BYF0465-MSD2 4-Bromofluorobenzene 97.1 71.4 125
BYF0465-MSD2 Toluene-dB 99.0 63.2 129
BYF0465-MSD1 Toluene-dB 100 63.2 129
Surrogate Recoveries (Field Samples)
LabNumber Analyte
8260 Low Level Volatiles
24F0441-01 Toluene-dB
24F0441-01 4-Bromofluorobenzene
24F0441-01 1,2-Dichloroethane-d4
8260 Low Level Volatiles
24F0441-02 Toluene-dB
24F0441-02 4-Bromofluorobenzene
24F0441-02 1,2-Dichloroethane-d4
8260 Low Level Volatiles
24F0441-03 Toluene-dB
24F0441-03 4-Bromofluorobenzene
24F0441-03 1,2-Dichloroethane-d4
CtF WO#: 24F0441
www.ChemtechFord.com
Result Spklvl %Rec
9.85 10.0 98.5
9.82 10.0 98.2
8.78 10.0 87.8
9.86 10.0 98.6
9.83 10.0 98.3
8.94 10.0 89.4
9.89 10.0 98.9
9.90 10.0 99.0
8.76 10.0 87.6
Result Spk Value
8.70 10.0
9.67 10.0
9.84 10.0
9.07 10.0
9.82 10.0
9.93 10.0
22500 25000
42.8 50.0
48.8 50.0
24700 25000
25000 25000
49.4 50.0
43.1 50.0
21700 25000
48.5 50.0
24300 25000
24800 25000
50.0 50.0
LCL UCL
63.2 129
71.4 125
64.2 126
63.2 129
71.4 125
64.2 126
63.2 129
71.4 125
64.2 126
Batch DF
BYF0465 1.00
BYF0465 1.00
BYF0465 1.00
BYF0465 1.00
BYF0465 1.00
BYF0465 1.00
BYF0465 1.00
BYF0465 1.00
BYF0465 1.00
BYF0465 1.00
BYF0465 1.00
BYF0465 1.00
BYF0465 1.00
BYF0465 1.00
BYF0465 1.00
BYF0465 1.00
BYF0465 1.00
BYF0465 1.00
Qualifier
Page 11 of 11
9632 South 500 West
CH EMTECH-FOR D
1_.\80?.,\TO~IES
6/27/2024
Work Order: 24F1276
Project: 2nd Quarter Chloroform
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
Page 1 of 36
CHEMTECH-FORD
lABO'IA1"0RIES
Chemtech-Ford Laboratories
Serving the lntermountain West Since 1953
9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Energy Fuels Resources, Inc.
Project: 2nd quarter Chloroform
Project Manager: Tanner Holliday
Laborato[ll ID Sam~le Name
24F1276-01 TW4-32R_06102024
24F1276-02 TW4-12_06112024
24F1276-03 TW4-28_06112024
24F1276-04 TW4-32_06112024
24F1276-05 TW4-13_06112024
24F1276-06 TW4-36_06122024
24F1276-07 TW4-14_06122024
24F1276-08 TW4-31 _06122024
24F1276-09 TW4-43_06122024
24F1276-10 TW4-23_06122024
24F1276-11 TW4-38_06122024
24F1276-12 TW4-34_06122024
24F1276-13 TW4-06_06122024
24F1276-14 TW4-35_06122024
24F1276-15 TW4-27 _ 06122024
24F1276-16 TW4-09_06122024
24F1276-17 TW4-65_06112024
24F1276-18 TW4-08_06132024
24F1276-19 TW4-05_06132024
24F1276-20 TW4-30_06132024
;~4F1276-21 TW4-33_06132024
24F1276-22 TW4-18_06132024
24F1276-23 TW4-70_06132024
24F1276-24 Trip Blank
Sample Preparation
Work Order Report Narrative
All samples were prepared within method specified holding times. No preparation issues were noted.
Method Blanks
All blank values were within method acceptance criteria. No blank values exceeded the minimum reporting limit for any
analysis in this work order.
Laboratory Control Samples
All laboratory control samples were within method acceptance criteria.
Method Spikes
All method spike recoveries were within method acceptance criteria, except as noted by qualifying flags.
Method Spike Duplicates
All method spike duplicates were within method acceptance criteria, except as noted by qualifying flags.
Corrective Actions
There are no corrective actions associated with this work order.
Page 2 of 36
CH EMTECH-FORD
!.A8Q;iAr0RIE5
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: 6/14/24 12:00@ 1.2 ·c
Date Reported: 6/27/2024
Project Name : 2nd Quarter Chloroform
I mg/L = one milligram per liter or \ mg/kg= one milligram per kilogram = \ part per million.
I ug/L = one microgram per liter or \ 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.
Proied Name: 2nd Quarter Chloroform
www.ChemtechFord.com
CtF WO#: 24F1276
Page 27 of 36
American West
Analytical Laboratories
463 W 3600 S Salt Lake City, UT 84115
Phone U (801) 26:',,8686 Ta ll Free U (888) 26:>,.8686
L~~ Fa, U (801) 26:',,8687 Email awal@awal•labs ,coni
www.awal-labs.com
Client Energy Fuels Re11ource11, Inc.
Address: 6425 8. Hwy. 191
Blanding, UT 84511
Contact Tanner BoWday
Phone#: [phone] Cell#:
Ema11 : thoWda,ta;eaeraf\tela,com; KWelne~enerafaBILeom
Project Name: 2nd Quarter Chloroform 2024
Project#:
PO#:
Sampler Name: Tanner BoWday
l?Lf ~rz.., r,,., l 'i 'Z-
Same.le ID: Date Samoled
TW4-32R_D6102024 6/10/2024
TW4-12_06112024 6/11/2024
TW4-28_06112024 6/11/2024
TW4-32_06112024 6/11/2024
TW4-13_06112024 6/11/2024
TW4-36_06122024 6/12/2024
TW4-14_06122024 6/12/2024
TW4-31_06122024 6/12/2024
TW4-43_06122024 6/12/2024
1 TW4-23.06122024 6/12/2024
I TW4-38_06122024 6/12/2024
• TW4-34_D6122024 6/12/2024
1 TW~_06122024 6/12/2024
I TW4-35 06122024 6/12/2024
I TW4-27_06122024 6/12/2024
I TW4-09_06122024 6/12/2024
r TW4-65 06112024 , 6/11/2024
::!!~~:hedby \..,., ··-_ il..//~/&t ,/ Dale :
8/13/2024
/ Ti me
PnnlNe.me Ta.nn ~r Mollld"" 1100
Time
Samcled
1330
630
640
700
715
616
624
634
641
650
659
707
716
726
734
743
700
Received '¼
SIQnab.ne ....
p,;:n.!Num
CHAIN OF CUSTODY
All anelynis will bo c.ortducled uaing NELAP acaediled melhode and all d11l8 will bo n,por1od uelll(I AWAL's standard ena\yte llet& end rapo,1 ing
llmll& (POL) unless 6J>8G i0co lly requBSted olherwisa on lhls Chain of Cuelody end/or el t.ac:hed documenlallon
QC Level : Turn Around Time : Unless olher errangemon1e haw be en made ,
signed reports will bo ema iled by 5 00 pm on
3 Standard lhe day lhey are due
X Include EDD:
LOCUS UPLOAD
EXCEL
Field Filtered For.
For Compliance With:
D NELAP
D RCRA
D CWA
D SOWA
D ELAP /A2LA
o' D NLLAP ;;;-0 □ N~ompllance
i:i C D Olher.
"l g-~ !!l. ... il ., " IO
]i .. 0 C "' ::;; C ~ Known Hazards 6 .. II!: It)
0 t a l!:. lJ &
'5 u 0 m Samele Comments. .. "' R: >
5 w X X X D O NOT USE FOi-i QC
5 w X X X
s 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
6 w X X X
5 w X X X
5 w X X X
5 w X X X
Y-vtO ..,,l PnA 0 0io l /'1 ·z.4 /W{j Special Instructions:
Time :'
AWAL lab S.mple Set#
Page I of 2
1011,, Oo1 te : I
Laboratory Use Only
Samples Were :
1 Sh ipped or hand dellvered
2 Amb ient or Ch ill ed
• fompereluru , .--z..c
• FtomiwdBlo);.orw\,H~mg
(lmprapt1rly SeaJed)
y N
5 Properly Pre58tVBd
y N
Checked al bench
y N
• Received Within
Holding Times
y N
COC TepeWu.. , Prasenl on Oula r Pacttage
y N NA
2 Unbroken on Oute r Package
y N NA
3 Presanl on Sample
y N NA
4 Unbroken on Sample
y Pl NA
Oisaepandos Between Sampfa
Labeia eod COC ReCiOrd?
y N
::....::"°"Oy, -t.R~ 1zln Yt/.Y()J °'l~bo z q 3 ·"C';1z.'B ~9 '3'ff 1 _ See the AnalytJcal Scope or Work for Reporting Limits and VOC
nnnly1c list.
PrhNAmo Sample Receipt Conditions: c.) ~3 r\t:,1 ~ t.?7 f~.LJ
R.o...,uhl,od ay
~
u stody Sea ls Present ~Correct Conta iners ( ) Headspace Presen t (VOC) N l ..1 7'1 Sl--notu,,.
~ ont.Jin ers Intact "t_ COC Included ( ) Temperature Blank kf' 13 7Z P11n1,H81M-'I-{ COC and labels M atch ~ COC Complete N.Jl,i<~rvc,d w,~·t n Hold
RoimQ11l)MO b,': N_Su fficie nt Sa mple Vol ume Ch e<ked bv: vJ (~, 13 3 7 Sinn•tar• ~ Rece ived on Ice
I ·~"''4t'I,.,., I Page
PrrnlNAtnO
28 of 36
American West
Analytical Laboratories
463W 3600S Sall l ake City. UT 8411 5
Phone# [phone] Toll Free# 1885) 263-8686
Fa, # 180 1) 263-6 687 Email [e-mail] m L~~ www.awal-labs .com
Client Energy Fuel.a Resource ■, Inc,
Address: 6425 S. Hwy, 191
Blanding, UT 84511
Contact: Tanner Holliday
Phone#: [phone] Cell#:
Email: thoWdaJ'@eners:,fuels.comj KWclnel(~oergyf\lela.com
Project Name: 2nd Quarter Chloroform 2024
Project#:
PO#:
Sampler Name : Tanner Holliday
2£./f: 127&:,
B TW4-08_06132024
• TW4-05_06132024
c TW4-30_06132024
1 TW4-33_06132024
22 2 TW4-18_06132024
, TW4-70_06132024
4 TRIPBLAIIK
'
H I
11
211 I
t1I I
:,0
3
;)2
I
1
!
.,, ' .. .
Samole ID:
Rellnqu1.shea t>y:~ ._,,/f~/j
Slgnaum, ,/ "' I> ~
PrlnlNeme: Tenner Hollldav
Reunqu luled by:
1 ..... -
Prinl.Name:
Rennqu lsh ed Dy.
Si r,e l.U1'9
Pn!IINarM
~ellnqulshed by
Sianalure
Prln1Nam1:
Z~z. Date Samoled
6/13/2024
6/13/2024
6/13/2024
6/13/2024
6/13/2024
6/13/2024
6/10/2024
1J•10-:
d:ti.312.0,,~ , n me;
11 00
Osle:
Oma .
Osle:
Ti me
Dale:
Time·
I
Time
Samoled
609
624
641
651
707
624
1330
:~:::tv, ,
.Pri.nl Nstne:
Rec.e lW<I by:
"1rl natura
PrlnlH:arN.:
Re celvud by:
Slanature
PN!t t.1111 1110~
~ecelved by.
Slcne tu.re
PmlNl"lmO!
CHAIN OF CUSTODY
All 8Mlysis will be conducled using NELAP scaediled methods and all dale will ba reported using AWAL'a slenderd anely,e llsls end reporting
limits (POL ) unlt..DII aooclf1Ca.S1~1oquo:JlD(J cUJOMi:.o en Ih le Chain of Custody and/or 11tlached documenlalion
QC Level: I Tum Around Time: Unle&:J oth&f' emmgemanl!J ha Ye been made,
e.lg n&d reports wi l be emn lled by S 00 pm on
3 Standard Iha day lhey ara duo
X Include EDD:
LOCUS UPLOAD
EXCEL
Fleld FIitered For.
For Compllance With:
□ NELAP
□ RCRA
□ CWA
□ SOWA
□ ElAP/A2LA
o' □ NLLAP
cii' <:i 0 Non--Compll ance
~ 0 □ Olher.
") IT ~ !:1. ~ 0 l! .g 8 0 IO
0 "' s 2 0 ~ Known Hazards 8 II: lJ)
u .!I .... ::t. ~ & '5 ~ 8 a g ,. .1! R: Samole Comments
s w X X X
s w X X X
5 w X X X
5 w X X X
5 w X X X
5 w X X X
3 w X
fPtJ? ~ o/1,//1/, 'V, /7.PZ Special Instructions:
Time :
AWAL Lab Sample Set#
Pag e 2 of
l°u r. D:•t r.: I
Laboratory Use Only
Somplos Wort,:
1 Snlppod ct l'ono dalrit91'1Nt
2 Atnblttnl or ChUled
• t11np1i1•t1.t ro (~&.c
4 Received Broken/leoklng
(lmproper1y Sealed)
y N
5 Properly Pnn1arwd
y N
Checkad el ben ch
y N
• Ro ce lwd Wilhln
Holding Times
y N
coc Tape Wes:
1 Present on Ouler Package
y N NA
2 Unbn:lktm on Ouler Package
y N NA
• Prese nt on Sampla
y N NA
4 Unbroken on Sem pl e
y N NA
lotscrepanciea Between Sample
r.ebels end COC Record?
y N
Oela : See the Analytical Scope of Work ror Reporting Limits and VOC
anelyte list.
Time
Oete :
Time :
Pele
f jme , Pag e 29 of 36
Analyte
_QC Sample ID: BYF0717-BLKI
\te Prepared: 06/17/2024
Chloride
QC Sample ID: BYF0746-BLK1
Date Prepared: 06/l 7 /2024
Chloride
QC Sample ID: BYF0790-BLK1
Date Prepared: 06/18/2024
Chloride
QC Sample ID: BYF0717-BSI
Date Prepared: 06/l 7 /2024
Chloride
QC Sample ID: BYF0746-BS1
Date Prepared: 06/17/2024
Chloride
QC Sample ID: BYF0790-BSI
Date Prepared: 06/18/2024
Chloride
QC Sample ID: BYF0717-MS2
Date Prepared: 06/ l 7 /2024
~hloride
QC Sample ID: BYF07 l 7-MSD2
Date Prepared: 06/17/2024
Chloride
CtF WO#: 24F1276
www.ChemtechFord.com
QC Report for Work Order (WO) -24F1276
%Rec RPO Limits RPO Max Result Source Cone
Blank -EPA 300.0
Batch: BYF07 l 7
Date Analyzed: 06/17/2024 Units: mg/L
ND
Batch: BYF0746
Date Analyzed: 06/ l 7 /2024 Units: mg/L
ND
Batch: BYF0790
Date Analyzed: 06/18/2024 Units: mg/L
ND
LCS -EPA 300.0
Batch: BYF0717
Date Analyzed: 06/17/2024 Units: mg/L
102 90-110 204
Batch: BYF0746
Date Analyzed: 06/ l 7 /2024 Units: mg/L
102 90-110 205
Batch: BYF0790
Date Analyzed: 06/18/2024 Units: mg/L
103 90 -110 206
Matrix Spike -EPA 300.0
Batch: BYF07 l 7 QC Source Sample: 24Fl276-02
Date Analyzed: 06/l 7 /2024 Units: mg/L
102 80 -120 75.7 53.0
Matrix Spike Dup -EPA 300.0
Batch: BYF07 l 7 QC Source Sample: 24Fl276-02
Date Analyzed: 06/l 7 /2024 Units: mg/L
105 0 .890 80-120 20 76.4 53.0
Spk Value MRL OF
1.00 1.00
1.00 1.00
1.00 1.00
200 1.00 1.00
200 1.00 1.00
200 1.00 1.00
22 .2 1.11 1.00
22.2 1.11 1.00
Page 30 of 36
QC Report for Work Order (WO) -24F1276
Analyte % Rec RPO Limits RPO Max Result Source Cone
Blank -EPA 353.2
_QC Sample ID: BYF0859-BLKI Batch: BYF0859
,ate Prepared: 06/19/2024 Date Analyzed: 06/20/2024 Units:
Nitrate+ Nitrite, Total, as N ND
QC Sample ID: BYF0860-BLKI Batch: BYF0860
Date Prepared: 06/19/2024 Date Analyzed: 06/20/2024 Units:
Nitrate+ Nitrite, Total, as N ND
LCS -EPA 353.2
QC Sample ID: BYF0859-BS1 Batch: BYF0859
Date Prepared: 06/19/2024 Date Analyzed: 06/20/2024 Units:
Nitrate+ Nitrite, Total, as N 95.9 90-110 1.92
QC Sample ID: BYF0860-BS1 Batch: BYF0860
Date Prepared: 06/19/2024 Date Analyzed: 06/20/2024 Units:
Nitrate+ Nitrite, Total, as N 99.0 90-110 1.98
Matrix Spike -EPA 353.2
QC Sample ID: BYF0859-MS2 Batch: BYF0859 QC Source Sample: 24Fl276-20
Date Prepared: 06/19/2024 Date Analyzed: 06/20/2024 Units:
Nitrate + Nitrite, Total, as N 110 90 -110 4.63 3.53
QC Sample ID: BYF0860-MS1 Batch: BYF0860 QC Source Sample: 24F1276-02
Date Prepared: 06/19/2024 Date Analyzed: 06/20/2024 Units:
Nitrate + Nitrite, Total, as N 113 90-110 4.62 3.49
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: BYF0860-MS2 Batch: BYF0860 QC Source Sample: 24Fl276-15
ate Prepared: 06/19/2024 Date Analyzed: 06/20/2024 Units:
Nitrate + Nitrite, Total, as N 99 .2 90 -110 16.7 15.7
Matrix Spike Dup -EPA 353.2
QC Sample ID: BYF0859-MSD2 Batch: BYF0859 QC Source Sample: 24F1276-20
Date Prepared: 06/19/2024 Date Analyzed: 06/20/2024 Units:
Nitrate+ Nitrite, Total, as N 111 0.281 90-110 20 4.64 3.53
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: BYF0860-MSD I Batch: BYF0860 QC Source Sample: 24Fl276-02
Date Prepared: 06/19/2024 Date Analyzed: 06/20/2024 Units:
Nitrate + Nitrite, Total, as N 95.8 3.84 90-110 20 4.44 3.49
QC Sample ID: BYF0860-MSD2 Batch: BYF0860 QC Source Sample: 24F1276-15
Date Prepared: 06/19/2024 Date Analyzed: 06/20/2024 Units:
Nitrate + Nitrite, Total, as N 118 1.14 90-110 20 16.9 15 .7
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.
CtF WO#: 24F1276
www.ChemtechFord.com
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
Spk Value MRL OF
0.100 1.00
0.100 1.00
2.00 0.100 1.00
2.00 0.100 1.00
1.00 0.100 1.00
1.00 0 .100 1.00
1.00 0.500 5.00
1.00 0.100 1.00
1.00 0.100 1.00
1.00 0.500 5.00
Page 31 of 36
QC Report for Work Order (WO) -24F1276
Analyte % Rec RPO Limits RPO Max Result Source Cone
Blank -EPA 8260D
.QC Sample ID: BYF0794-BLKI Batch: BYF0794
)ate Prepared: 06/18/2024 Date Analyzed: 06/18/2024 Units:
Carbon Tetrachloride ND
Chloroform ND
Chloromethane ND
Methylene Chloride ND
QC Sample ID: BYF0809-BLKI Batch: BYF0809
Date Prepared: 06/18/2024 Date Analyzed: 06/18/2024 Units:
Carbon Tetrachloride ND
Chloroform ND
Chloromethane ND
Methylene Chloride ND
LCS -EPA 8260D
QC Sample ID: BYF0794-BSI Batch: BYF0794
Date Prepared: 06/18/2024 Date Analyzed: 06/18/2024 Units:
Carbon Tetrachloride 90.5 70-130 9.05
Chloroform 92.8 70-130 9.28
Chloromethane 73.2 70-130 7.32
Methylene Chloride 88.4 70 -130 8.84
QC Sample ID: BYF0809-BSI Batch: BYF0809
Date Prepared: 06/18/2024 Date Analyzed: 06/18/2024 Units:
Carbon Tetrachloride 123 70 -130 12.3
Chloroform 120 70 -130 12.0
Chloromethane 84.2 70 -130 8.42
\ethylene Chloride 114 70 -130 11.4
Matrix Spike -EPA 8260D
QC Sample ID: BYF0809-MSI Batch: BYF0809 QC Source Sample: 24Fl276-02
Date Prepared: 06/18/2024 Date Analyzed: 06/18/2024 Units:
Carbon Tetrachloride 81.1 70-130 40.6 ND
Chloroform 95.5 70-130 47.8 ND
Chloromethane 55.3 70 -130 27.6 ND
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.
Methylene Chloride 94.9 70-130 47.4 ND
Matrix Spike Dup -EPA 8260D
QC Sample ID: BYF0809-MSDI Batch: BYF0809 QC Source Sample: 24Fl276-02
Date Prepared: 06/18/2024 Date Analyzed: 06/18/2024 Units:
Carbon Tetrachloride 81.0 0.123 70-130 20 40.5 ND
Chloroform 93.8 1.80 70-130 20 46.9 ND
Chloromethane 58.2 5.11 70 -130 20 29.1 ND
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.
Methylene Chloride
CtF WO#: 24F1276
www.ChemtechFord.com
93.9 1.06 70-130 20 47.0 ND
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Spk Value MRL OF
1.0 1.00
1.0 1.00
1.0 1.00
1.0 1.00
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
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
Page 32 of 36
Surrogates Report for Work Order (WO) -24F1276
QCID Analyte
--.
j vF0794-BLK1 1,2-Dichloroethane-d4
BYF0794-BLK1 4-Bromofluorobenzene
BYF0794-BLK1 Toluene-dB
BYF0809-BLK1 1,2-Dichloroethane-d4
BYF0809-BLK1 4-Bromofluorobenzene
BYF0809-BLK1 Toluene-dB
BYF0794-BS 1 1,2-Dichloroethane-d4
BYF0794-BS1 4-Bromofluorobenzene
BYF0794-BS 1 Toluene-dB
BYF0809-BS 1 1,2-Dichloroethane-d4
BYF0809-BS1 4-Bromofluorobenzene
BYF0809-BS 1 Toluene-dB
BYF0794-MS1 1 ,2-Dichloroethane-d4
BYF0794-MS1 4-Bromofluorobenzene
BYF0794-MS1 Toluene-dB
BYF0809-MS 1 1,2-Dichloroethane-d4
BYF0809-MS 1 4-Bromofluorobenzene
BYF0809-MS 1 Toluene-dB
BYF0794-MSD1
\
1,2-Dichloroethane-d4
dYF0794-MSD1 4-Bromofluorobenzene
BYF0794-MSD1 Toluene-dB
BYF0809-MSD1 1 ,2-Dichloroethane-d4
BYF0809-MSD1 4-Bromofluorobenzene
BYF0809-MSD1 Toluene-dB
CtF WO#: 24F1276
www.ChemtechFord.com
%Rec LCL UCL Result
Blank -EPA 8260D
97.4 64 .2 126 9.74
101 71.4 125 10.1
101 63.2 129 10.1
92.6 64 .2 126 9.26
83.9 71 .4 125 8.39
96 .3 63 .2 129 9 .63
LCS -EPA 8260D
96.4 64 .2 126 9.64
100 71.4 125 10 .0
100 63 .2 129 10.0
99.4 64.2 126 9.94
98.7 71.4 125 9.87
99.7 63.2 129 9.97
Matrix Spike -EPA 8260D
96.4 64.2 126 48.2
99 .6 7 1.4 125 49.8
101 63.2 129 50.4
98.9 64 .2 126 49.4
97.2 71.4 125 48.6
101 63 .2 129 50.4
Matrix Spike Dup -EPA 8260D
97.2 64.2 126 48 .6
99 .8 71.4 125 49.9
100 63.2 129 50 .0
96.4 64.2 126 48.2
98 .7 71.4 125 49.4
100 63 .2 129 50.0
Spk Value Batch DF
10.0 BYF0794 1.00
10.0 BYF0794 1.00
10.0 BYF0794 1.00
10.0 BYF0809 1.00
10.0 BYF0809 1.00
10 .0 BYF0809 1.00
10 .0 BYF0794 1.00
10.0 BYF0794 1.00
10.0 BYF0794 1.00
10.0 BYF0809 1.00
10.0 BYF0809 1.00
10.0 BYF0809 1.00
50 .0 BYF0794 1.00
50.0 BYF0794 1.00
50 .0 BYF0794 1.00
50.0 BYF0809 1.00
50 .0 BYF0809 1.00
50.0 BYF0809 1.00
50.0 BYF0794 1.00
50 .0 BYF0794 1.00
50 .0 BYF0794 1.00
50.0 BYF0809 1.00
50.0 BYF0809 1.00
50.0 BYF0809 1.00
Page 33 of 36
Surrogate Recoveries (Field Samples)
LabNumber Analyte Result Spklvl %Rec LCL UCL Qualifier
8260 Low Level Volatiles
24F1276-01 4-Bromofluorobenzene 8.42 10.0 84.2 71.4 125
24F1276-01 Toluene-dB 9.77 10 .0 97 .7 63.2 129
24F1276-01 1,2-Dichloroethane-d4 9.41 10 .0 94.1 64.2 126
8260 Low Level Volatiles
24F1276-02 1,2-Dichloroethane-d4 9 .96 10.0 99 .6 64 .2 126
24F1276-02 4-Bromofluorobenzene 8.56 10 .0 85.6 71.4 125
24F1276-02 Toluene-dB 9.66 10.0 96.6 63.2 129
8260 Low Level Volatiles
24F1276-03 1,2-Dichloroethane-d4 9.86 10.0 98.6 64.2 126
24F1276-03 4-Bromofluorobenzene 8.54 10 .0 85.4 71.4 125
24F1276-03 Toluene-dB 9.86 10.0 98 .6 63.2 129
8260 Low Level Volatiles
24F1276-04 1,2-Dichloroethane-d4 9 .99 10.0 99.9 64 .2 126
24F1276-04 4-Bromofluorobenzene 8.70 10.0 87.0 71.4 125
24F1276-04 Toluene-dB 9.92 10.0 99.2 63.2 129
8260 Low Level Volatiles
24F1276-05 1,2-Dichloroethane-d4 9.94 10.0 99.4 64.2 126
24F1276-05 4-Bromofluorobenzene 8.52 10 .0 85.2 71.4 125
24F1276-05 Toluene-dB 9.86 10.0 98.6 63.2 129
8260 Low Level Volatiles
24F1276-06 1,2-Dichloroethane-d4 9.59 10.0 95 .9 64 .2 126
24F1276-06 4-Bromofluorobenzene 8.36 10.0 83 .6 71.4 125
24F1276-06 Toluene-dB 9.90 10.0 99 .0 63.2 129
8260 Low Level Volatiles
24F1276-07 4-Bromofluorobenzene 8.47 10.0 84.7 71.4 125
24F1276-07 1 ,2-Dichloroethane-d4 10.2 10.0 102 64.2 126
24F1276-07 Toluene-dB 9.88 10.0 98.8 63.2 129
8260 Low Level Volatiles
24F1276-08 1,2-Dichloroethane-d4 9.97 10.0 99 .7 64 .2 126
24F1276-08 4-Bromofluorobenzene 8.45 10 .0 84 .5 71.4 125
24F1276-08 Toluene-dB 9.82 10 .0 98 .2 63.2 129
8260 Low Level Volatiles
24F1276-09 1,2-Dichloroethane-d4 8.98 10.0 89.8 64.2 126
24F1276-09 4-Bromofluorobenzene 8.52 10.0 85 .2 71.4 125
24F1276-09 Toluene-dB 10.0 10.0 100 63.2 129
8260 Low Level Volatiles
24F1276-10 1 ,2-Dichloroethane-d4 9.42 10 .0 94 .2 64 .2 126
24F1276-10 Toluene-dB 9.91 10 .0 99 .1 63 .2 129
24F1276-10 4-Bromofluorobenzene 8.28 10.0 82.8 71.4 125
CIF WO#: 24F1276
www.ChemtechFord.com Page 34 of 36
8260 Low Level Volatiles
24F1276-11 Toluene-dB 9 .87 10.0 98.7 63.2 129
24F1276-11 4-Bromofluorobenzene 8.57 10.0 85 .7 71.4 125
·,, 24F1276-11 1,2-Dichloroethane-d4 9.92 10.0 99.2 64.2 126
I
8260 Low Level Volatiles
24F1276-12 Toluene-dB 9.81 10 .0 98.1 63.2 129
24F1276-12 4-Bromofluorobenzene 8.57 10.0 85.7 71.4 125
24F1276-12 1,2-Dichloroethane-d4 9.46 10.0 94.6 64 .2 126
8260 Low Level Volatiles
24F1276-13 Toluene-dB 9 .76 10 .0 97 .6 63.2 129
24F1276-13 4-Bromofluorobenzene 8.38 10 .0 83 .8 71.4 125
24F1276-13 1,2-Dichloroethane-d4 9.55 10.0 95.5 64.2 126
8260 Low Level Volatiles
24F1276-14 1,2-Dichloroethane-d4 9.63 10.0 96.3 64.2 126
24F1276-14 4-Bromofluorobenzene 8.34 10 .0 83.4 71.4 125
24F1276-14 Toluene-dB 9.87 10.0 98.7 63.2 129
8260 Low Level Volatiles
24F1276-15 Toluene-dB 9 .84 10 .0 98 .4 63.2 129
24F1276-15 4-Bromofluorobenzene 8.59 10.0 85 .9 71 .4 125
24F1276-15 1 ,2-Dichloroethane-d4 9.54 10.0 95.4 64.2 126
8260 Low Level Volatiles
24F1276-16 Toluene-dB 9.82 10 .0 98.2 63.2 129
24F1276-16 4-Bromofluorobenzene 8.58 10 .0 85.8 71.4 125
' 24F1276-16 1,2-Dichloroethane-d4 9.29 10.0 92 .9 64.2 126
8260 Low Level Volatiles
24F1276-17 1,2-Dichloroethane-d4 9.46 10 .0 94 .6 64 .2 126
24F1276-17 4-Bromofluorobenzene 8 .36 10.0 83 .6 71.4 125
24F1276-17 Toluene-dB 9.85 10.0 98.5 63 .2 129
8260 Low Level Volatiles
24F1276-18 1,2-Dichloroethane-d4 9.32 10.0 93.2 64.2 126
24F1276-18 4-Bromofluorobenzene 8.38 10.0 83.8 71.4 125
24F1276-18 Toluene-dB 9.78 10 .0 97 .8 63.2 129
8260 Low Level Volatiles
24F1276-19 1,2-Dichloroethane-d4 9 .53 10 .0 95 .3 64 .2 126
24F1276-19 Toluene-dB 9 .99 10.0 99.9 63 .2 129
24F1276-19 4-Bromofluorobenzene 8.52 10.0 85.2 71.4 125
8260 Low Level Volatiles
24F1276-20 Toluene-dB 9.77 10.0 97.7 63.2 129
24F1276-20 4-Bromofluorobenzene 8.31 10 .0 83.1 71.4 125
24F1276-20 1,2-Dichloroethane-d4 10.0 10 .0 100 64.2 126
8260 Low Level Volatiles
24F1276-21 Toluene-dB 10.2 10.0 102 63.2 129
24F1276-21 4-Bromofluorobenzene 10 .1 10 .0 101 71.4 125
, 24F1276-21 1,2-Dichloroethane-d4 10.2 10.0 102 64.2 126
CtF WO#: 24F1276
www.ChemtechFord.com Page 35 of 36
8260 Low Level Volatiles
24F1276-22 1,2-Dichloroethane-d4
24F1276-22 4-Bromofluorobenzene
24F1276-22 Toluene-dB
8260 Low Level Volatiles
24F1276-23 Toluene-dB
24F1276-23 1,2-Dichloroethane-d4
24F1276-23 4-Bromofluorobenzene
8260 Low Level Volatiles
24F1276-24 Toluene-dB
24F1276-24 4-Bromofluorobenzene
24F1276-24 1,2-Dichloroethane-d4
CtF WO#: 24F1276
www.ChemtechFord.com
10.0
10.0
10.2
10.2
9.98
10.1
10.1
10.0
10.1
10.0 100 64.2 126
10.0 100 71.4 125
10.0 102 63.2 129
10.0 102 63.2 129
10.0 99.8 64.2 126
10.0 101 71.4 125
10.0 101 63.2 129
10.0 100 71.4 125
10.0 101 64.2 126
Page 36 of 36
9632 South 500 West
I
CHEMTECH-FORD
l_.,,BO~t\TO~lfS
7/3/2024
Work Order: 24Fl 794
Project: 2nd Quarter Chloroform 2024
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
Page 1 of 18
CHEMTECH-FORD
LAeORATORIES
Chemtech-Ford Laboratories
Serving the lntermountain West Since 1953
9632 South 500 West
Sandy, UT 84070
0:[phone] F: [phone]
www.ChemtechFord.com
Energy Fuels Resources, Inc.
Project: 2nd Quarter Chloroform 2024
Project Manager: Tanner Holliday
Laboratory ID
24F1794-01
24F1794-02
24F1794-03
24F1794-04
24F1794-05
24F1794-06
24F1794-07
24F1794-08
24F1794-09
Sample Name
TW4-16R_06192024
MW-32_06192024
TW4-16_06202024
TW4-10_06202024
TW4-29_06202024
TW4-26_06202024
TW4-07_06202024
TW4-75_06202024
Trip Blank
Sample Preparation
Work Order Report Narrative
All samples were prepared within method specified holding times. No preparation issues were noted .
Method Blanks
All blank values were within method acceptance criteria. No blank values exceeded the minimum reporting limit for any
analysis in this work order.
Laboratory Control Samples
All laboratory control samples were within method acceptance criteria.
Method Spikes
All method spike recoveries were within method acceptance criteria, except as noted by qualifying flags .
Method Spike Duplicates
All method spike duplicates were within method acceptance criteria, except as noted by qualifying flags .
Corrective Actions
There are no corrective actions associated with this work order.
Page 2 of 18
CHEMTECH-FORD
!..A80RAfORJE5
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: 6/21 /24 11 :01 @ -1.1 ·c
Date Reported: 7/3/2024
Project Name: 2nd Quarter Chloroform 2024
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 trillion.
Proiect Name: 2nd Quarter Chloroform 2024
www.ChemtechFord.com
CtF WO#: 24F1794
Page 12 of 18
10
I
" '
' 1::,,1 .. I
;
,. '
'
American West
Analytical Laboratories
463W 3600S SalllakeCity VT 8411 5
Phone# [phone] Toll F, .. # [phone]
L~~ Fax # [phone] Ema il awa [e-mail]
www.awal-labs .com
Client: Energy Fuela Re■o'?'cea, Inc.
Address : 6425 S. Hwy. 191
Blanding, UT 84511
Contact: Tanner Holliday
Phone #: [phone] Cell#:
Emalt: thoWday(a)enerc,fllela.eo.m; K'W•lD•J(~erOfaelll.com
Project Neme: 2nd Quarter Chloroform 2024
Projec!H:
PO#:
Sampler Name: Tanner Holliday
Samole ID: Date Samoled
TW4-16R_06192024 6/19/2024
IIIW-32_06192024 6/19/2024
TW4-16_06202024 6/20/2024
TW4-10_06202024 I 6/20/2024
TW4-29_06202024 6/20/2024
TW4-26_06202024 6/20/2024
TW4--0'7 _06202024 6/20/2024
TW4-75_06202024 6/20/2024
TRIPBLAl'fK 6/19/2024
l.l~t,y,7 /f ,.//44-,, / Dato :
S~M... -dAr/laJC e12012024
.v; flme
Print N.n rNL Tanner MollldftY '"'" Rallnqulahed by: I Da1a :
Sianalura
I flma
PrinlNamo.
Rallnqulshad by ' Data:
Sianatura
Time:
Prl ntNa nw,:
Aellnqutshec:I by Data
ISio.n.11 ture ,.....
PnnlName-
Time
Samoled
750
1150
700
710
722
732
742
700
750
RNotl\~by
lmnno11.m11
I
CHAIN OF CUSTODY
All &Nl1ys,!, will be condu cted using NELAP accradifed meU-ads and al data will be re ported Ulllng AWAL'!! S\a ndard ana\yte lisb lllnd IIIPortlng
ltmila (POL) unlaS3 speciOc::e lty requeslad ol heMise on lhll Cha in or Cuelody and/o r all.a ched documentatio n
QC Level : I Tum Around Time : Unlen other arrangements haw been made,
signed r9ports will be ema il ed by 5 00 pm on
3 Standard the day they are due
X Include EDD:
LOCUS UPLOAD
EXCEL
Field FIitered For.
For Compllance With:
D NELAP
□ RCRA
D CWA
0 SOWA
D ELAP/A2LA
o' □ NLLAP
i3i' cS □ Non-CompHence
1;j C ~ □ Olher. "' i ~ ~ I .., 0 "' 3 0 C "' ::i; C ~ Known Hazards 6 .. lf)
u -[ -:!:. i & ..
0 E 0 iJ .. Sample Comments .. <I) ..
s w X X X Oo NOT use for QC
5 w X X X
5 w X X X ~· ,,CJ.) 'f-~·~ 5 w X X X ... ,~1q
5 w X X X l,... OGl w 1..:1 ,,,,-z;-,
,
5 w X X X
5 w X X X
5 w X X X
3 w X
Sam~le Receipt Conditions:
~Jstody Seals Pre se nt y,-(prrcc.t Conl ~l,,etS I ) Headsp ace Pcesen t (VOC )
p onlai ner?. lnr,,ct .;..(c'oc Included
~
To p~ratu ro Blan k
~OC and l..lbol< Match n'c_oc Complote RtcciYt.'fl wit,;,!n~ Hol,d
JA"R«eived on 1,c ~uffide.nt Sa mplt" Volume Checkedbv:
I I I I__L I I I I
~~..Y
~ ~._,.,,,,
L'Ullt" 'i,{1,, Special Instructions:
11r11q1
I\WN.. Lab Sample Set#
Page 1 of 1
IO u e Dal e: I
Laboratory Use Only
Samples Were:
I ~o,Ml'ld~M!fod
2 Ambienl or Chilled ' • {
3 Temperalure -___ ·c . ReceMtd BrokeM.Nking
(Improperly Seeled)
y N
• Property Preaarvad
y N
Checked al bench
y N
e Racelwd Within
Holding Tlrnes
y N
COCTapeWa,r.
1 Preaen1 on Outer PaCUge
y N NA
2 Unbrcken on Oulitr Package
y N NA
3 PnlMnl on Sample
y N NA
• Unbroken on Sample
y N NA
Dlacni pancle.s Between Sample
labels and COC Record?
y N
"""'"~,,,,-fAJr .... c. 0 . nm. ·11 bl
t::ttv I Cale See the Analytical Scope or Wor k fo r Re p orting Limits and voe
enalyte list.
~me '~-"""'""""' ReoeMtd by: Data : __ ,. .... 11 111111 1111 11 Sk!M lllre
nm, I'/. l~/\-n 111%/hllll'I
Prlr,t N11 me ' ! l -L ~ I _'(,l ,.:t 111 1' Ra ca M<I by. Oa1a:
SJnl'lll ture
Ti me
P11n1""'""
e 13 of 18 PagE
Analyte
QC Sample ID: BYF1267-BLKI
Date Prepared: 06/26/2024
Chloride
QC Sample ID: BYF1340-BLKI
Date Prepared: 06/27/2024
Chloride
QC Sample ID: BYF1267-BSI
Date Prepared: 06/26/2024
Chloride
QC Sample ID: BYF1340-BSI
Date Prepared: 06/27/2024
Chloride
QC Sample ID: BYF1267-MSI
Date Prepared: 06/26/2024
Chloride
QC Sample ID: BYF1267-MS2
Date Prepared: 06/26/2024
Chloride
QC Sample ID: BYF1267-MSD1
Date Prepared: 06/26/2024
Chloride
QC Sample ID: BYF1267-MSD2
Date Prepared: 06/26/2024
Chloride
CtF WO#: 24F1794
www.ChemtechFord.com
QC Report for Work Order (WO) -24F1794
%Rec RPD Limits RPD Max Result Source Cone
Blank -EPA 300.0
Batch: BYF1267
Date Analyzed: 06/26/2024 Units: mg/L
ND
Batch: BYF1340
Date Analyzed: 06/27/2024 Units: mg/L
ND
LCS -EPA 300.0
Batch: BYF1267
Date Analyzed: 06/26/2024 Units: mg/L
103 90 -110 205
Batch: BYF1340
Date Analyzed: 06/27/2024 Units: mg/L
102 90-110 203
Matrix Spike -EPA 300.0
Batch: BYF1267 QC Source Sample: 24Fl 794-01
Date Analyzed: 06/26/2024 Units: mg/L
95.2 80 -120 21.2 ND
Batch: BYF1267 QC Source Sample: 24Fl 794-02
Date Analyzed: 06/26/2024 Units: mg/L
101 80 -120 60.6 38.2
Matrix Spike Dup -EPA 300.0
Batch: BYF1267 QC Source Sample: 24F1794-0l
Date Analyzed: 06/26/2024 Units: mg/L
97.3 2.16 80 -120 20 21.6 ND
Batch: BYF1267 QC Source Sample: 24Fl 794-02
Date Analyzed: 06/26/2024 Units: mg/L
103 0.724 80 -120 20 61.0 38.2
Spk Value MRL DF
1.00 1.00
1.00 1.00
200 1.00 1.00
200 1.00 1.00
22.2 1.11 1.00
22.2 1.11 1.00
22.2 1.11 1.00
22.2 1.11 1.00
Page 14 of 18
Analyte
QC Sample ID: BYFl 174-BLKl
Date Prepared: 06/25/2024
Nitrate + Nitrite, Total, as N
QC Sample ID: BYFI 174-BS 1
Date Prepared: 06/25/2024
Nitrate+ Nitrite, Total, as N
QC Sample ID: BYF1174-MS1
Date Prepared: 06/25/2024
Nitrate + Nitrite, Total, as N
QC Sample ID: BYFI 174-MSDI
Date Prepared: 06/25/2024
Nitrate+ Nitrite, Total, as N
CtF WO#: 24F1794
www.ChemtechFord.com
QC Report for Work Order (WO) -24F1794
% Rec RPO Limits RPO Max Result Source Cone Spk Value MRL OF
Blank -EPA 353.2
Batch: BYFl 174
Date Analyzed: 06/25/2024 Units: mg/L
ND 0.100 1.00
LCS -EPA 353.2
Batch: BYF1174
Date Analyzed: 06/25/2024 Units: mg/L
95.1 90 -110 1.90 2 .00 0.100 1.00
Matrix Spike • EPA 353.2
Batch: BYFll 74 QC Source Sample: 24Fl 794-02
Date Analyzed: 06/25/2024 Units: mg/L
101 90 • 110 1.01 ND 1.00 0.100 1.00
Matrix Spike Dup -EPA 353.2
Batch: BYFll 74 QC Source Sample: 24Fl 794-02
Date Analyzed: 06/25/2024 Units: mg/L
102 0.787 90 • 110 20 1.02 ND 1.00 0.100 1.00
Page 15 of 18
QC Report for Work Order (WO) -24F1794
Analyte % Rec RPO Limits RPO Max Result Source Cone
Blank -EPA 8260D
QC Sample ID: BYFll0l-BLKl Batch: BYF1101
Date Prepared: 06/24/2024 Date Analyzed: 06/24/2024 Units:
Carbon Tetrachloride ND
Chloroform ND
Chloromethane ND
Methylene Chloride ND
QC Sample ID: BYF1101-BLK2 Batch: BYFI 101
Date Prepared: 06/24/2024 Date Analyzed: 06/24/2024 Units:
Carbon Tetrachloride ND
Chloroform ND
Chloromethane ND
Methylene Chloride ND
LCS -EPA 8260D
QC Sample ID: BYFI 101-BSI Batch: BYF1101
Date Prepared: 06/24/2024 Date Analyzed: 06/24/2024 Units:
Carbon Tetrachloride 93.9 70-130 9.39
Chloroform 84.5 70 -130 8.45
Chloromethane 103 70 -130 10.3
Methylene Chloride 82.9 70 -130 8.29
Matrix Spike -EPA 8260D
QC Sample ID: BYF1101-MS2 Batch: BYF1101 QC Source Sample: 24Fl 794-02
Date Prepared: 06/24/2024 Date Analyzed: 06/24/2024 Units:
Carbon Tetrachloride 78.1 70 -130 39.0 ND
Chloroform 71.1 70 -130 35.6 ND
Chloromethane 86.9 70 -130 43.4 ND
Methylene Chloride 67.1 70 -130 33.6 ND
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.
Matrix Spike Dup -EPA 8260D
QC Sample ID: BYF1101-MSD2 Batch: BYF1101 QC Source Sample: 24Fl 794-02
Date Prepared: 06/24/2024 Date Analyzed: 06/24/2024 Units:
Carbon Tetrachloride 82.5 5.48 70 -130 20 41.2 ND
Chloroform 73.2 2.91 70-130 20 36.6 ND
Chloromethane 87.6 0.802 70 -130 20 43.8 ND
Methylene Chloride 69.0 2.79 70 -130 20 34.5 ND
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.
CtF WO#: 24F1794
www.ChemtechFord.com
ug/L
ug/L
ug/L
ug/L
ug/L
SpkValue MRL OF
1.0 1.00
1.0 1.00
1.0 1.00
1.0 1.00
250 1.00
250 1.00
250 1.00
250 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
Page 16 of 18
Surrogates Report for Work Order (WO) -24F1794
QCID Analyte
BYF1101-BLK1 1,2-Dichloroethane-d4
BYF1101-BLK2 1,2-Dichloroethane-d4
BYF1101-BLK1 4-Bromofluorobenzene
BYF1101-BLK2 4-Bromofluorobenzene
BYF1101-BLK1 Toluene-d8
BYF1101-BLK2 Toluene-dB
BYF1101-BS1 1,2-Dichloroethane-d4
BYF1101-BS1 4-Bromofluorobenzene
BYF1101-BS1 Toluene-dB
BYF1101-MS1 1,2-Dichloroethane-d4
BYF1101-MS2 1,2-Dichloroethane-d4
BYF1101-MS1 4-Bromofluorobenzene
BYF1101-MS2 4-Bromofluorobenzene
BYF1101-MS1 Toluene-dB
BYF1101-MS2 Toluene-d8
BYF1101-MSD1 1,2-Dichloroethane-d4
BYF1101-MSD2 1,2-Dichloroethane-d4
BYF1101-MSD1 4-Bromofluorobenzene
BYF1101-MSD2 4-Bromofluorobenzene
BYF1101-MSD2 Toluene-dB
BYF1101-MSD1 Toluene-dB
CtF WO#: 24F1794
www.ChemtechFord.com
%Rec LCL UCL Result
Blank -EPA 8260D
95.8 64.2 126 9.58
95.1 64.2 126 2380
90.0 71.4 125 9.00
90.2 71.4 125 2260
97.8 63.2 129 9.78
100 63.2 129 2500
LCS -EPA 8260D
94.2 64.2 126 9.42
90.7 71.4 125 9.07
100 63.2 129 10.0
Matrix Spike -EPA 8260D
93.1 64.2 126 2330
91.5 64.2 126 45.8
91.3 71.4 125 2280
88.4 71.4 125 44.2
92.9 63.2 129 2320
100 63.2 129 50.0
Matrix Spike Dup -EPA 8260D
92.8 64.2 126 2320
93.7 64.2 126 46.8
91.4 71.4 125 2280
86.6 71.4 125 43.3
93.3 63.2 129 46.6
100 63.2 129 2500
Spk Value Batch DF
10.0 BYF1101 1.00
2500 BYF1101 1.00
10.0 BYF1101 1.00
2500 BYF1101 1.00
10.0 BYF1101 1.00
2500 BYF1101 1.00
10.0 BYF1101 1.00
10.0 BYF1101 1.00
10.0 BYF1101 1.00
2500 BYF1101 1.00
50.0 BYF1101 1.00
2500 BYF1101 1.00
50.0 BYF1101 1.00
2500 BYF1101 1.00
50.0 BYF1101 1.00
2500 BYF1101 1.00
50.0 BYF1101 1.00
2500 BYF1101 1.00
50.0 BYF1101 1.00
50.0 BYF1101 1.00
2500 BYF1101 1.00
Page 17 of 18
Surrogate Recoveries (Field Samples)
LabNumber Analyte
8260 Low Level Volatiles
24F1794-01 4-Bromofluorobenzene
24F1794-01 Toluene-dB
24F1794-01 1,2-Dichloroethane-d4
8260 Low Level Volatiles
24F1794-02 1,2-Dichloroethane-d4
24F1794-02 4-Bromofluorobenzene
24F1794-02 Toluene-dB
8260 Low Level Volatiles
24F1794-03 1,2-Dichloroethane-d4
24F1794-03 4-Bromofluorobenzene
24F1794-03 Toluene-dB
8260 Low Level Volatiles
24F1794-04 1,2-Dichloroethane-d4
24F1794-04 4-Bromofluorobenzene
24F1794-04 Toluene-dB
8260 Low Level Volatiles
24F1794-05 Toluene-dB
24F1794-05 4-Bromofluorobenzene
24F1794-05 1,2-Dichloroethane-d4
8260 Low Level Volatiles
24F1794-06 1,2-Dichloroethane-d4
24F1794-06 4-Bromofluorobenzene
24F1794-06 Toluene-dB
8260 Low Level Volatiles
24F1794-07 1,2-Dichloroethane-d4
24F1794-07 4-Bromofluorobenzene
24F1794-07 Toluene-dB
8260 Low Level Volatiles
24F1794-08 Toluene-dB
24F1794-08 1,2-Dichloroethane-d4
24F1794-08 4-Bromofluorobenzene
8260 Low Level Volatiles
24F1794-09 1,2-Dichloroethane-d4
24F1794-09 4-Bromofluorobenzene
24F1794-09 Toluene-dB
CtF WO#: 24F1794
www.ChemtechFord.com
Result
9.21
10.0
9.76
9 .69
8 .63
9.79
9.97
9.10
10 .0
9.79
8 .86
9.73
9.75
8.92
9.95
9.77
9.14
10.0
9.56
8.85
10.0
10.0
9.75
8.70
9.63
8.78
9.68
SpkLvl %Rec LCL UCL Qualifier
10.0 92.1 71.4 125
10.0 100 63.2 129
10.0 97.6 64.2 126
10 .0 96 .9 64 .2 126
10.0 86 .3 71.4 125
10.0 97 .9 63.2 129
10.0 99.7 64.2 126
10 .0 91.0 71.4 125
10.0 100 63.2 129
10.0 97.9 64.2 126
10 .0 88.6 71.4 125
10.0 97.3 63.2 129
10.0 97.5 63.2 129
10.0 89.2 71.4 125
10.0 99 .5 64.2 126
10.0 97.7 64 .2 126
10.0 91.4 71.4 125
10.0 100 63.2 129
10.0 95.6 64.2 126
10.0 88.5 71.4 125
10.0 100 63.2 129
10.0 100 63 .2 129
10.0 97.5 64 .2 126
10.0 87.0 71.4 125
10.0 96 .3 64.2 126
10 .0 87.8 71.4 125
10.0 96.8 63.2 129
Page 18 of 18
Tab I
Quality Assurance and Data Validation Tables
1-1: Field QA/QC Evaluation
1x Casing 2x Casing
Location Volume Volume Pumped Volume Volume Check Conductivity RPO pH RPO Temperature RPO Redox RPO Turbidity
MW-D4 NA Continuously Pumped we ll -1962 NC 7.13 NC 16 .03 NC 337 NC 0
TW4-01 NA Continuously Pumped well -2317 NC 7 16 NC 16.48 NC 309 NC 1.8
TW4-02 NA Continuously Pumped well -3905 NC 7.07 NC 16 .19 NC 292 NC 7.0
TW4-03 4 8.33 71 ,50 96.66 Pumped Dry 1905 1915 0.52 6.69 6.73 0.60 16 .38 16 .30 0.49 NM NC NM
"TVV 4-04 NA Continuously Pumped we ll -2411 NC 7 19 NC 17 .05 NG 300 NC 0
TW4-05 31 .24 77 .00 62 .4 8 okay 1589 1568 1.33 6.51 6.53 0.31 15 .7 8 15 .7 5 0.19 473 465 1.71 2 .6
TW4-06 12 .06 11.00 24 .12 Pumped Dry 3140 3160 0.63 6 .93 6 .90 0.4 3 15.13 15.20 0.46 NM Ne NM
TW4-07 24 .81 50 .0 49 .62 Pumped Dry 1721 1720 0.06 7 .28 ,.27 0.14 f5.77 15.75 0.13 NM NC NM
TW4-08 26 ,37 66 ,00 52 .74 oka y 4568 4568 0 .00 6.74 6 ,75 0.15 15 .4 3 15.44 0.06 293 293 0.00 8.8
TW4-09 31.46 77 .00 62 .92 okay 2495 2490 0.20 6.70 6 .72 0.30 15.45 15 .4 2 0.19 327 324 0.92 29 .0
TW4-10 27.47 35.0 54.94 Pumped Dr'{ 2024 2032 0.39 6.79 6.80 0.15 16.10 16.0·5 0.3 1 NM NC NM
TW'4-11 NA Conti nuously Pum p ed we ll -3756 l\l C 7.01 NC 16 .76 NC 254 NC 1.9
TW4-12 29.97 38.50 59.94 Pumpea Dry 1390 1406 1.14 6.98 7 00 0.29 15.91 15 .87 0.25 NM NC NM
TW4-13 31 .01 44.00 62.02 Pumped Dry 2136 2145 0.42 7.15 7 .12 0.42 15.21 ,-15.15 0.4 0 NM NC NM
TW4-14 11 .49 14 .66 22.98 Pumped Dry 5427 5429 0 .04 6.56 6 .58 0.30 1·5.05 15 .02 0.20 NM fiil C NM
MW-26 NA Continuously Pumped well --3485 NC 7.02 NC 16.41 NC 318 NC 1.1
TW4-16 47.60 100 .00 95.2 okay 3610 3626 0.44 6.7 4 6 .7 5 0.15 14 .97 14 .97 0.00 280 279 0.36 20.3
MW-32 30.67 65.10 61 .34 okay 1232 1251 1.53 6.65 6 ,65 0.00 15.76 15.72 0.25 193 188 2.62 8.1
TW4-18 40.40 110 .00 80 .8 okay 2018 1998 1.00 6.27 6 .30 0.48 15.81 15 .87 0.38 444 434 2.28 6 .3
TW4-19 NA Continuously Pumped wei r -2781 NC 6.76 NC 17.42 NC 435 NC 0.6
TW4-21 NA Continuously Pumped well -3104 NC 6.80 NC 16 .01 NC 379 NC 0
TW4-22 NA Continuously Pumped well -5072 NC 6.50 NC 16 .15 NC 382 NC 1.1
TW4-23 25.32 77 .00 50.64 okay 347 1 348 4 0 .37 6.80 6 .85 0.73 14.79 14 .89 0 .67 236 230 2.58 2 .8
TW4-24 NA Continuous ry Pumped well -6827 NC 6.77 NC 15 .95 NC 404 NC 0.5
TW4-25 NA Continuously Pumped well -2551 NC 7 11 NC 16 .03 NC 402 NC 4.0
--rw4-26 7 -7 0 7.50 15.4 Pumped Dr'{ 4749 4758 0.19 6.85 6 .85 0.00 15.8 5 15.82 0.19 NM fiil C NM
TW4-27 1 O.ff5 11 .00 2 1.3 Pumped Dry 5141 5148 0.14 6.50 6 .54 0.61 15.'2 0 15.18 0.13 NM NC NM
TW4-2ff .. 38.02 52 .2 5 76 ,04 Pumped Dry 1664 1668 0.24 7 .28 7.27 0.14 15.05 15 .04 0.07 NM NC NM
TW4-29 9.39 10 ,00 18.78 Pumped Dry 3831 3844 0.34 7.17 7 .15 0.28 15.88 15.83 0.32 NM Ne NM
TW4-30 11.76 11.00 23.52 Pumped Dry 4683 4687 0.09 6.15 6 .14 0.16 15.66 15.60 0.38 NM NC NM
TW4-3 1 20.29 25.66 40'.58 Pumped Dry 3775 3779 0.11 7.1 2 7.1 1 0 14 14.80 14 ,82 0.14 NM NC NM
TW4-32 37 .18 77 .00 74.36 ok ay 596 1 5982 0.35 4 .11 4 .12 0.24 15.42 15.39 0.19 484 484 0 .00 14.0
TW4-33 4.13 3.66 8.26 Pumped Dry 4860 4859 0.02 7.26 7.25 0.14 15.10 15.14 0 .26 NM NC NM
TW4-34 11 .26 14.66 22 .52 Pumped Dry 3726 3739 0.35 7.24 7 .25 0.14 15.13 15.10 0 .20 NM NC NM
TW4-35 6.72 5.5 13.44 Pumped Dry 4423 4438 0.34 6.77 6.80 0.44 15 18 15.23 0.33 NM NC NM
TW4-36 26.06 33.00 52 ,12 Pumped Dry 2475 24 8 1 0.24 6.89 6.91 0.29 16 .01 15.99 0.13 NM NC NM
TW4-37 NA Continuously -P umped well -3545 NC 6.98 NC 16 .23 NC 378 NC 4.0
TW4-38 34.04 77.00 68 .08 okay 1558 1543 0.97 6.52 6.55 0.46 15 .4 8 15 .53 0.32 444 438 1.36 ·3 _3
-TW4-39 NA Continuously Pumped well -2610 NC 6 .86 NC 16.55 NC 362 NC 47.0
TW4-40 NA Continuously Pumpe a we ll -4271 NC 6.96 NC 16 .58 NC 302 NC 4.5
TW4-41 NA Continuous ry Pumpea we ll -2854 NC 7.16 NC 17 .07 NC 325 NC 0.6
TW4-42 9 ,10 11.00 18 .-2 Pumped D ry 4051 407 1 0.49 7 11 7 10 0.14 16 .7 5 16.74 0.06 NM NC NM
TW4-43 14.37 22 .00 28.74 Pumped Dry 3639 3645 0 .16 7.05 7.05 0.00 14.70 14 .56 0.27 NM NC NM
V .,. MW:-04. MW-26. TrW4-01 , lWLl-02, TW4-04 , TW4:-11 , TW4--19, TW4-2 1, TW4-22, TW4-24, TW4-25 . TW4-c37 , TW4-39, TW4-4€1 . TW4-41 are cont1m1all y pumped wells.
TW4-03, TW4-06, TW4-07, TW4-10, TW4-12, TW4-13, TW4-14, TW4-26, TW4-27, TW4-28, TW4-29, TW4-30, TW4-31, TW4-33, TW4-34, TW4-35, TW4-36, TW4-42, TW4-43 were pumped dry and sampled after recovery .
NM = Not Measured . The QAP does not require the measurement of redox potential or turbidity in wells that were purged to dryness .
RP □ = Relative Percent Difference
The OAP states that turbidity should be less than 5 Nephelometric Turbidity Units ("NTU") prior to sampling unless the well is characterized by water that has a higher turbidity. The QAP does not require that turbidity measurements be less than 5 NTU prior to
sampling. As such, the noted observations regarding turbidity measurements less than 5 NTU are included for information purposes only.
2 .5
8.6
29 .3
21.0
7 .9
6 .4
2 .9
14.4
3.4
RPO Dissolved Oxygen RPO
NC 34 ,9 NC
NC 78.5 NC
NC 83.2 NC
NC NM NC
NC 102.1 NC
3 .92 50 .0 49 .0 2 .02
NC NM NS-
NC NM NC
2 .30 4.0 3 .9 2 .53
1.03 1.0 1.0 0 .00
NC NM NC
NC 101.3 NC
NC NM NC
NC NM NC
NC NM NC
NC 48.9 NC
3.39 11.0 12 .0 8 .7 0
2.50 7.5 7 .3 2.70
1.57 10 .0 10 .3 2.96
NC 25.4 NC
NC 99.0 NC
NC 33.4 NC
3 .51 4.0 4 .3 7 .23
NC 16 .0 NC
NC 86.0 NC
NC NM NC -
NC NM NC
NC NM NC
NC NM NG
NC NM NC
NC NM NC
2 .82 1.2 1.2 0.00
NC NM NC
NC NM NC
NC NM NC
NC NM NC
NC 84.3 NC
2.99 77.0 '7 9.0 2 .56
NC 101.0 NC
NC 109 .1 NC
NC 88 .20 NC
NC NM NC
NC 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 05 /29 /2024 06/05/2024 7 14 OK
Trip Blank Chloroform 05/29/2024 06/05/2024 7 14 OK
Trip Blank Ch loromethane 05/29/2024 06/05/2024 7 14 OK
Trip Blank Methylene Chloride 05/29/2024 06/05/2024 7 14 OK
Trip Blank Carbon Tetrachloride 06 /04 /2024 06/11 /2024 7 14 OK
Trip Blank Chloroform 06 /04 /2024 06/11/2024 7 14 OK
Trip Blank Chloromethane 06/04/2024 06/11/2024 7 14 OK
Trip Blank Methylene Chloride 06 /04/2024 06/11/2024 7 14 OK
Trip Blank Chloroform 06 /06 /2 024 06/11/2024 5 14 OK
Trip Blank Carbon Tetrachloride 06/10/2024 06/18/2024 8 14 OK
Trip Blank Chloroform 06/10/2024 06/18/2024 8 14 OK
Trip Blank Chloromethane 06/10/2024 06/18/2024 8 14 OK
Trip Blank Methylene Chloride 06/10/2024 06/18/2024 8 14 OK
Trip Blank Carbon Tetrachloride 06/19/2024 06 /24/2024 5 14 OK
Trip Blank Chloroform 06/19/2024 06 /24/2024 5 14 OK
Trip Blank Chloromethane 06/19/2024 06/24/2024 5 14 OK
Trip Blank Methylene Chloride 06 /19/2024 06/24/2024 5 14 OK
MW-04 Carbon Tetrachloride 05 /29 /2024 06 /05/2024 7 14 OK
MW-04 Chloride 05 /29 /2024 06/05/2024 7 28 OK
MW-04 Chloroform 05 /29/2024 06/05/2024 7 14 OK
MW-04 Chloromethane 05/29/2024 06/05/2024 7 14 OK
MW-04 Methylene Chloride 05/29/2024 06/05/2024 7 14 OK
MW-04 Nitrate+ Nitrite as N 05/29/2024 06 /06/2024 8 28 OK
TW4-0I Carbon Tetrachloride 05 /29 /2024 06 /05 /2024 7 14 OK
TW4-0I Chloride 05 /29/2024 06 /05/2024 7 28 OK
TW4-0I Chloroform 05 /29/2024 06/05/2024 7 14 OK
TW4-0I Chloromethane 05 /29/2 024 06 /05 /2024 7 14 OK
TW;'l -01 Methylene Chloride 05 /29 /2024 06 /05/2024 7 14 OK
TW4-0I Nitrate + Nitrite as N 05 /29 /2024 06/06/2024 8 28 OK
TW4-02 Carbon Tetrachloride 05/29/2024 06/05/2024 7 14 OK
TW4-02 Chloride 05/29/2024 06/05/2024 7 28 OK
TW4-02 Chloroform 05/29/2024 06/05/2024 7 14 OK
TW4-02 Chloromethane 05 /29 /2024 06 /05 /2024 7 14 OK
TW4-02 Methylene Chloride 05 /29/2024 06/05 /2024 7 14 OK
TW4-02 Nitrate + Nitrite as N 05 /29/2024 06 /06/2024 8 28 OK
TW4-03 Carbon Tetrachloride 06 /04/2024 06/11 /2024 7 14 OK
TW4-03 Chloride 06 /04 /2024 06 /08 /2024 4 28 OK
TW4-03 Chloroform 06 /04 /2024 06/11/2024 7 14 OK
TW4-03 Chloromethane 06/04/2024 06/11/2024 7 14 OK
TW4-03 Methylene Chloride 06/04/2024 06/11/2024 7 14 OK
TW4-03 Nitrate+ Nitrite as N 06/04/2024 06/07/2024 3 28 OK
TW4-04 Carbon Tetrachloride 05 /29 /2024 06 /05 /2024 7 14 OK
TW4-04 Chloride 05 /29 /2024 06/06 /2024 8 28 OK
TW4-04 Chloroform 05/29/2024 06/05/2024 7 14 OK
TW4-04 Chloromethane 05 /29 /2024 06 /05 /2024 7 14 OK
TW4-04 Methylene Chloride 05 /29 /2024 06 /05 /2024 7 14 OK
TW4-04 Nitrate+ Nitrite as N 05 /29 /2024 06/06/2024 8 28 OK
TW4-05 Carbon Tetrachloride 06/13 /2024 06/18/2024 5 14 OK
TW4-05 Chloride 06/13/2024 06/18/2024 5 28 OK
1-2: Holding Time Evaluation
Hold Time Allowed Hold Hold Time
Location lD Parameter Name Sample Date Analysis Date (Days) Time (Days) Check
TW4-05 Chloroform 06 /13 /2024 06/18/2024 5 14 OK
TW4-05 Chloromethane 06/13 /2024 06/18/2024 5 14 OK
TW4-05 Methylene Chloride 06/13/2024 06/18/2024 5 14 OK
TW4-05 Nitrate + Nitrite as N 06/13/2024 06/20/2024 7 28 OK
TW4-06 Carbon Tetrachloride 06/12 /2024 06/18/2024 6 14 OK
TW4-06 Chloride 06/12 /2024 06/18/2024 6 28 OK
TW4-06 Chloroform 06/12/2024 06/18/2024 6 14 OK
TW4-06 Chloromethane 06 /12/2024 06/18/2024 6 14 OK
TW4-06 Methylene Chloride 06/12/2024 06/18/2024 6 14 OK
TW4-06 Nitrate+ Nitrite as N 06 /12/2024 06/20/2024 8 28 OK
TW4-07 Carbon Tetrachloride 06/20/2024 06/24/2024 4 14 OK
TW4-07 Chloride 06/20/2024 06/27/2024 7 28 OK
TW4-07 Chloroform 06/20/2024 06/24/2024 4 14 OK
TW4-07 Chloromethane 06 /20 /2024 06/24/2024 4 14 OK
TW4-07 Meth ylene Chloride 06 /20/2024 06/24/2024 4 14 OK
TW4-07 Nitrate+ Nitrite as N 06/20/2024 06/25/2024 5 28 OK
TW4-08 Carbon Tetrachloride 06/13 /2024 06/18/2024 5 14 OK
TW4-08 Chloride 06 /13 /2024 06/18/2024 5 28 OK
TW4-08 Chloroform 06 /13 /2024 06/18/2024 5 14 OK
TW4-08 Chloromethane 06/13 /2024 06/18/2024 5 14 OK
TW4-08 Methylene Chloride 06/13 /2024 06/18/2024 5 14 OK
TW4-08 Nitrate+ Nitrite as N 06/13/2024 06/20/2024 7 28 OK
TW4-09 Carbon Tetrachloride 06/12/2024 06/18/2024 6 14 OK
TW4-09 Chloride 06 /12/2024 06/18/2024 6 28 OK
TW4-09 Chloroform 06/12/2024 06/18/2024 6 14 OK
TW4-09 Chloromethane 06 /12 /2024 06/18/2024 6 14 OK
TW4-09 Methylene Chloride 06 /12 /2024 06 /18 /2024 6 14 OK
TW4-09 Nitrate + Nitrite as N 06/1 2/2024 06/20/2024 8 28 OK
TW4-10 Carbon Tetrachloride 06 /20 /2024 06/24/2024 4 14 OK
TW4-10 Chloride 06/20/2024 06/26/2024 6 28 OK
TW4-10 Chloroform 06/20/2024 06/24/2024 4 14 OK
TW4-10 Chloromethane 06/20/2024 06/24/2024 4 14 OK
TW4-10 Methylene Chloride 06 /20/2024 06/24/2024 4 14 OK
TW4-10 Nitrate+ Nitrite as N 06/20/2024 06 /25/2024 5 28 OK
TW4-ll Carbon Tetrachloride 05 /2 9/2024 06/05 /2024 7 14 OK
TW4-l l Chloride 05 /29 /2 024 06 /06/2024 8 28 OK
TW4-1 I Chloroform 05 /29/2024 06 /05 /2024 7 14 OK
TW4-l I Chloromethane 05 /29/2024 06/05/2024 7 14 OK
TW4-l l Methylene Chloride 05/29/2024 06/05/2024 7 14 OK
TW4-1 l Nitrate+ Nitrite as N 05/29/2024 06/06/2024 8 28 OK
TW4-12 Carbon Tetrachloride 06/11/2024 06/18/2024 7 14 OK
TW4-12 Chloride 06 /11 /2024 06/17/2024 6 28 OK
TW4-12 Chloroform 06/11/2024 06/18/2024 7 14 OK
TW4-12 Chloromethane 06/11/2024 06/18/2024 7 14 OK
TW4-12 Methylene Chloride 06 /11/2024 06/18/2024 7 14 OK
TW4-12 Nitrate+ Nitrite as N 06 /11 /2024 06 /20/2024 9 28 OK
TW4-13 Carbon Tetrachloride 06/11 /2024 06/18/2024 7 14 OK
TW4-13 Chloride 06/11/2024 06/17/2024 6 28 OK
TW4-13 Chloroform 06/11/2024 06/18/2024 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
TW4-13 Chloromethane 06/11/2024 06/18/2024 7 14 OK
TW4-13 Methylene Chloride 06/11/2024 06/18/2024 7 14 OK
TW4-l3 Nitrate+ Nitrite as N 06/11/2024 06/20/2024 9 28 OK
TW4-14 Carbon Tetrachloride 06/12/2024 06/18/2024 6 14 OK
TW4-14 Chloride 06/12/2024 06/17/2024 5 28 OK
TW4-14 Chloroform 06 /12/2024 06 /18/2024 6 14 OK
TW4-14 Chloromethane 06/12/2024 06/18/2024 6 14 OK
TW4-14 Methylene Chloride 06/12/2024 06/18/2024 6 14 OK
TW4-14 Nitrate+ Nitrite as N 06 /1 2/2024 06/20 /2024 8 28 OK
MW-26 Carbon Tetrachloride 05 /29/2024 06/05/2024 7 14 OK
MW-26 Chloride 05/29 /2024 06/05/2024 7 28 OK
MW-26 Chloroform 05/29/2024 06/05/2024 7 14 OK
MW-26 Chloromethane 05/29/2024 06/05/2024 7 14 OK
MW-26 Methylene Chloride 05 /29/2024 06/05 /2024 7 14 OK
MW-26 Nitrate + Nitrite as N 05 /29 /2024 06 /06 /2024 8 28 OK
TW4-16 Carbon Tetrachloride 06/20/2024 06/24/2024 4 14 OK
TW4-16 Chloride 06 /20/2024 06/26/2024 6 28 OK
TW4-16 Chloroform 06 /20/2024 06/24 /2024 4 14 OK
TW4-l6 Chloromethane 06 /20/2024 06/24/2024 4 14 OK
TW4-16 Methylene Chloride 06 /20/2024 06/24/2024 4 14 OK
TW4-16 Nitrate+ Nitrite as N 06/20/2024 06/25/2024 5 28 OK
TW4-16R Carbon Tetrachloride 06/19/2024 06/24/2024 5 14 OK
TW4-16R Chloride 06/19/2024 06 /27/2024 8 28 OK
TW4-16R Chloroform 06 /19/2024 06/24 /2024 5 14 OK
TW4-16R Chloromethane 06/19/2024 06/24/2024 5 14 OK
TW4-l6R Methylene Chloride 06/19/2024 06/24/2024 5 14 OK
TW4-16R Nitrate+ Nitrite as N 06 /19 /2024 06 /25 /2024 6 28 OK
MW-32 Carbon Tetrachloride 06 /19/2024 06/24/2024 5 14 OK
MW-32 Chloride 06/19/2024 06/26/2024 7 28 OK
MW-32 Chloroform 06/19/2024 06/24/2024 5 14 OK
MW-32 Chloromethane 06/19/2024 06/24/2024 5 14 OK
MW-32 Methylene Chloride 06/19/2024 06 /24/2024 5 14 OK
MW-32 Nitrate+ Nitrite as N 06/19/2024 06 /25 /2024 6 28 OK
TW4-18 Carbon Tetrachloride 06 /13 /2024 06/18/2024 5 14 OK
TW4-18 Chloride 06/13 /2024 06 /18/2024 5 28 OK
TW4-18 Chloroform 06 /13 /2024 06 /18/2024 5 14 OK
TW4-18 Chloromethane 06/13 /2024 06 /18/2024 5 14 OK
TW4-18 Methylene Chloride 06 /13 /2024 06/18/2024 5 14 OK
TW4-18 Nitrate+ Nitrite as N 06/13 /2024 06/20/2024 7 28 OK
TW4-19 Carbon Tetrachloride 05/29/2024 06/05/2024 7 14 OK
TW4-19 Chloride 05/29/2024 06/05/2024 7 28 OK
TW4-19 Chloroform 05 /29 /2024 06 /05 /2024 7 14 OK
TW4-19 Ch loromethane 05 /29/2024 06 /05 /2024 7 14 OK
TW4-19 Methylene Chloride 05/29/2024 06/05 /2024 7 14 OK
TW4-19 Nitrate+ Nitrite as N 05 /29/2024 06 /06/2024 8 28 OK
TW4-21 Carbon Tetrachloride 05 /29/2024 06 /05 /2024 7 14 OK
TW4-21 Chloride 05 /29/2024 06/06/2024 8 28 OK
TW4-21 Chloroform 05 /29 /2024 06/05/2024 7 14 OK
TW4-21 Chloromethane 05/29/2024 06/05/2024 7 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
TW4-21 Methylene Chloride 05 /29 /2024 06/05 /2024 7 14 OK
TW4 -21 Nitrate+ Nitrite as N 05 /29/2024 06/06/2024 8 28 OK
TW4-22 Carbon Tetrachloride 05 /29/2024 06/05/2024 7 14 OK
TW4-22 Chloride 05 /29 /2024 06 /06/2024 8 28 OK
TW4-22 Chloroform 05/29/2024 06/05/2024 7 14 OK
TW4-22 Chloromethane 05 /29 /2024 06/05 /2024 7 14 OK
TW4-22 Methylene Chloride 05/29/2024 06/05/2024 7 14 OK
TW4-22 Nitrate+ Nitrite as N 05 /29 /2024 06/06/2024 8 28 OK
TW4-23 Carbon Tetrachloride 06/12/2024 06/18/2024 6 14 OK
TW4-23 Chloride 06/12/2024 06/18/2024 6 28 OK
TW4 -23 Chloroform 06/12/2024 06/18/2024 6 14 OK
TW4-23 Ch loromethane 06/12/2024 06/18/2024 6 14 OK
TW4-23 Methylene Chloride 06/12/2024 06/18 /2024 6 14 OK
TW4-23 Nitrate+ Nitrite as N 06/12/2024 06/20/2024 8 28 OK
TW4 -24 Carbon Tetrachloride 05 /29 /2024 06 /05 /2024 7 14 OK
TW4-24 Chloride 05 /29/2024 06/06/2024 8 28 OK
TW4-24 Chloroform 05 /29 /2024 06 /05/2024 7 14 OK
TW4-24 Chloromethane 05 /29 /2024 06/05 /2024 7 14 OK
TW4-24 Methylene Chloride 05 /29/2024 06 /05/2024 7 14 OK
TW4-24 Nitrate+ Nitrite as N 05 /29 /2024 06 /06/2024 8 28 OK
TW4-25 Carbon Tetrachloride 05/29/2024 06/05/2024 7 14 OK
TW4-25 Chloride 05 /29 /2024 06/05 /2024 7 28 OK
TW4-25 Chloroform 05 /29/2024 06/05/2024 7 14 OK
TW4-25 Chloromethane 05 /29 /2024 06 /05 /2024 7 14 OK
TW4-25 Methylene Chloride 05 /29/2024 06/05/2024 7 14 OK
TW4-25 Nitrate+ Nitrite as N 05 /29/2024 06/06/2024 8 28 OK
TW4-26 Carbon Tetrachloride 06 /20 /2024 06 /24/2024 4 14 OK
TW4-26 Chloride 06 /20/2024 06/27/2024 7 28 OK
TW4-26 Chloroform 06 /20 /2024 06 /24/2024 4 14 OK
TW4-26 Chloromethane 06/20/2024 06/24/2024 4 14 OK
TW4-26 Methylene Chloride 06 /20 /2024 06/24/2024 4 14 OK
TW4-26 Nitrate + Nitrite as N 06 /20/2024 06 /25 /2024 5 28 OK
TW4-27 Carbon Tetrachloride 06/12/2024 06/18 /2024 6 14 OK
TW4-27 Chloride 06/12/2024 06/18/2024 6 28 OK
TW4-27 Chloroform 06/12/2024 06/18/2024 6 14 OK
TW4-27 Chloromethane 06 /12 /2024 06/18/2024 6 14 OK
TW4-27 Methylene Chloride' 06/12/2024 06/18/2024 6 14 OK
TW4-27 Nitrate+ Nitrite as N 06 /12/2024 06 /20/2024 8 28 OK
TW4-28 Carbon Tetrachloride 06/11/2024 06/18/2024 7 14 OK
TW4-28 Chloride 06/11/2024 06/17/2024 6 28 OK
TW4-28 Chloroform 06/11 /2024 06/18/2024 7 14 OK
TW4-28 Chloromethane 06/11/2024 06/18/2024 7 14 OK
TW4-28 Methylene Chloride 06/11/2024 06/18 /2024 7 14 OK
TW4-28 Nitrate+ Nitrite as N 06/11/2024 06/20/2024 9 28 OK
TW4-29 Carbon Tetrachloride 06 /20 /2024 06 /24/2024 4 14 OK
TW4-29 Chloride 06 /20/2024 06 /27/2024 7 28 OK
TW4-29 Chloroform 06 /20 /2024 06/24/2024 4 14 OK
TW4-29 Chloromethane 06 /20/2024 06/24/2024 4 14 OK
TW4-29 Methylene Chloride 06 /20/2024 06/24/2024 4 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
TW4-29 Nitrate+ Nitrite as N 06/20/2024 06/25/2024 5 28 OK
TW4-30 Carbon Tetrachloride 06/13/2024 06/18/2024 5 14 OK
TW4-30 Chloride 06/13/2024 06/18/2024 5 28 OK
TW4-30 Chloroform 06/13/2024 06/18/2024 5 14 OK
TW4-30 Chloromethane 06/13/2024 06/18/2024 5 14 OK
TW4-30 Methylene Chloride 06/13 /2024 06/18/2024 5 14 OK
TW4-30 Nitrate+ Nitrite as N 06/13/2024 06/20/2024 7 28 OK
TW4-31 Carbon Tetrachloride 06/12/2024 06/18/2024 6 14 OK
TW4-31 Chloride 06/12/2024 06/18/2024 6 28 OK
TW4-31 Chloroform 06/12/2024 06/18/2024 6 14 OK
TW4-31 Chloromethane 06/12/2024 06/18/2024 6 14 OK
TW4-31 Methylene Chloride 06/12/2024 06/18/2024 6 14 OK
TW4-31 Nitrate+ Nitrite as N 06/12/2024 06/20/2024 8 28 OK
TW4-32 Carbon Tetrachloride 06/11/2024 06/18/2024 7 14 OK
TW4-32 Chloride 06/11 /2024 06/17 /2024 6 28 OK
TW4-32 Chloroform 06/11/2024 06/18/2024 7 14 OK
TW4-32 Chloromethane 06 /11/2024 06/18/2024 7 14 OK
TW4-32 Methylene Chloride 06/11 /2024 06/18/2024 7 14 OK
TW4-32 Nitrate+ Nitrite as N 06/11 /2024 06/20/2024 9 28 OK
TW4-32R Carbon Tetrachloride 06/10/2024 06/18/2024 8 14 OK
TW4-32R Chloride 06/10/2024 06/17/2024 7 28 OK
TW4-32R Chloroform 06/10/2024 06/18/2024 8 14 OK
TW4-32R Chloromethane 06/10/2024 06/18/2024 8 14 OK
TW4-32R Methylene Chloride 06/10/2024 06/18/2024 8 14 OK
TW4-32R Nitrate+ Nitrite as N 06/10/2024 06 /20/2024 10 28 OK
TW4-33 Carbon Tetrachloride 06/13 /2024 06/18/2024 5 14 OK
TW4-33 Chloride 06 /13 /2024 06/18 /2024 5 28 OK
TW4-33 Chloroform 06 /13 /2024 06/18/2024 5 14 OK
TW4-33 Chloromethane 06/13/2024 06/18/2024 5 14 OK
TW4-33 Methylene Chloride 06/13/2024 06/18/2024 5 14 OK
TW4-33 Nitrate+ Nitrite as N 06/13/2024 06/20/2024 7 28 OK
TW4-34 Carbon Tetrachloride 06/12/2024 06/18/2024 6 14 OK
TW4-34 Chloride 06 /12 /2024 06 /18/2024 6 28 OK
TW4-34 Chloroform 06/12/2024 06/18/2024 6 14 OK
TW4-34 Chloromethane 06/12/2024 06/18/2024 6 14 OK
TW4-34 Methylene Chloride 06/12/2 024 06 /18 /2024 6 14 OK
TW4-34 Nitrate+ Nitrite as N 06 /12/2024 06/20/2024 8 28 OK
TW4-35 Carbon Tetrachloride 06/12/2024 06/18/2024 6 14 OK
TW4-35 Chloride 06/12 /2024 06/18/2024 6 28 OK
TW4-35 Chloroform 06/12/2024 06/18/2024 6 14 OK
TW4-35 Chloromethane 06/12/2024 06/18/2024 6 14 OK
TW4-35 Methylene Chloride 06 /12/2024 06/18 /2024 6 14 OK
TW4-35 Nitrate + Nitrite as N 06/12/2024 06/20/2024 8 28 OK
TW4-36 Carbon Tetrachloride 06/12/2024 06/18/2024 6 14 OK
TW4-36 Chloride 06/12 /2024 06/17/2024 5 28 OK
TW4-36 Chloroform 06/12/2024 06/18 /2024 6 14 OK
TW4-36 Chloromethane 06/12/2024 06/18/2024 6 14 OK
TW4-36 Methylene Chloride 06/12/2024 06/18/2024 6 14 OK
TW4-36 Nitrate+ Nitrite as N 06/12/2024 06/20/2024 8 28 OK
1-2 : Holding Time Evaluation
Hold Time Allowed Hold Hold Time
Location ID Parameter Name Sample Date Analysis Date (Days) Time (Days) Check
TW4-37 Carbon Tetrachloride 05 /29/2024 06/05/2024 7 14 OK
TW4-37 Chloride 05/29/2024 06/06/2024 8 28 OK
TW4-37 Chloroform 05/29/2024 06/05/2024 7 14 OK
TW4-37 Chloromethane 05/29/2024 06/05/2024 7 14 OK
TW4-37 Methylene Chloride 05 /29/2024 06 /05 /2024 7 14 OK
TW4-37 Nitrate+ Nitrite as N 05 /29/2024 06 /06/2024 8 28 OK
TW4-38 Carbon Tetrachloride 06/12/2024 06/18/2024 6 14 OK
TW4-38 Chloride 06/12/2024 06 /18/2024 6 28 OK
TW4-38 Chloroform 06 /12 /2024 06 /18 /2024 6 14 OK
TW4-38 Chloromethane 06/12 /2024 06/18/2024 6 14 OK
TW4-38 Methylene Chloride 06/12/2024 06/18/2024 6 14 OK
TW4-38 Nitrate+ Nitrite as N 06/12/2024 06/20/2024 8 28 OK
TW4-39 Carbon Tetrachloride 05/29/2024 06/05/2024 7 14 OK
TW4-39 Chloride 05/29 /2024 06 /05 /2024 7 28 OK
TW4-39 Chloroform 05/29/2024 06 /05 /2024 7 14 OK
TW4-39 Chloromethane 05/29/2024 06/05 /2024 7 14 OK
TW4-39 Methylene Chloride 05/29/2024 06/05/2024 7 14 OK
TW4-39 Nitrate + Nitrite as N 05 /29/2024 06 /06 /2024 8 28 OK
TW4-40 Carbon Tetrachloride 05 /29/2024 06/05/2024 7 14 OK
TW4-40 Chloride 05 /29 /2024 06/05/2024 7 28 OK
TW4-40 Chloroform 05/29/2024 06/05/2024 7 14 OK
TW4-40 Chloromethane 05/29/2024 06/05/2024 7 14 OK
TW4-40 Methylene Chloride 05/29/2024 06 /05 /2024 7 14 OK
TW4-40 Nitrate+ Nitrite as N 05 /29 /2024 06/06/2024 8 28 OK
TW4-41 Carbon Tetrachloride 05 /29/2024 06/05/2024 7 14 OK
TW4-41 Chloride 05 /29/2024 06 /05/2024 7 28 OK
TW4-41 Chloroform 05 /29/2024 06 /05 /2024 7 14 OK
TW4-41 Chloromethane 05 /29/2024 06 /05/2024 7 14 OK
TW4-41 Methylene Chloride 05 /29/2024 06/05/2024 7 14 OK
TW4-41 Nitrate+ Nitrite as N 05/29/2024 06/06/2024 8 28 OK
TW4-42 Carbon Tetrachloride 06/04/2024 06/11/2024 7 14 OK
TW4-42 Chloride 06/04/2024 06 /08/2024 4 28 OK
TW4-42 Chloroform 06 /04 /2024 06/11/2024 7 14 OK
TW4-42 Chloromethane 06 /04 /2024 06/11 /2024 7 14 OK
TW4-42 Methylene Chloride 06 /04/2024 06 /11/2024 7 14 OK
TW4-42 Nitrate+ Nitrite as N 06 /04/2024 06/14/2024 10 28 OK
TW4-43 Carbon Tetrachloride 06/12 /2024 06/18/2024 6 14 OK
TW4-43 Chloride 06/12/2024 06/18/2024 6 28 OK
TW4-43 Chloroform 06/12/2024 06/18/2024 6 14 OK
TW4-43 Chloromethane 06/12/2024 06/18/2024 6 14 OK
TW4-43 Methylene Chloride 06/12/2024 06/18/2024 6 14 OK
TW4-43 Nitrate+ Nitrite as N 06 /12 /2024 06 /20 /2024 8 28 OK
TW4-60 Carbon Tetrachloride 05 /29/2024 06 /05 /2024 7 14 OK
TW4-60 Chloride 05/29/2024 06/06 /2024 8 28 OK
TW4-60 Chloroform 05 /29/2024 06 /05/2024 7 14 OK
TW4-60 Chloromethane 05 /29/2024 06 /05 /2024 7 14 OK
TW4-60 Methylene Chloride 05 /29/2024 06/05/2024 7 14 OK
TW4-60 Nitrate+ Nitrite as N Q5/29 /2024 06/06/2024 8 28 OK
TW4-65 Carbon Tetrachloride 06/11/2024 06/18/2024 7 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
TW4-65 Chloride 06/11 /2024 06/18/2024 7 28 OK
TW4-65 Chloroform 06/11/2024 06/18/2024 7 14 OK
TW4-65 Chloromethane 06/11/2024 06/18/2024 7 14 OK
TW4-65 Methylene Chloride 06/11/2024 06/18/2024 7 14 OK
TW4-65 Nitrate+ Nitrite as N 06/11/2024 06 /20/2024 9 28 OK
TW4-70 Carbon Tetrachloride 06/13 /2024 06/18/2024 5 14 OK
TW4-70 Chloride 06/13/2024 06/19/2024 6 28 OK
TW4-70 Chloroform 06 /13 /2024 06/18/2024 5 14 OK
TW4-70 Chloromethane 06 /13 /2024 06/18 /2024 5 14 OK
TW4-70 Methylene Chloride 06 /13 /2024 06/18/2024 5 14 OK
TW4-70 Nitrate + Nitrite as N 06/13 /2024 06/20/2024 7 28 OK
TW4-75 Carbon Tetrachloride 06/20/2024 06/24/2024 4 14 OK
TW4-75 Chloride 06/20/2024 06/27/2024 7 28 OK
TW4-75 Chloroform 06 /20/2024 06 /24/2024 4 14 OK
TW4-75 Chloromethane 06/20/2024 06 /24/2024 4 14 OK
TW4-75 Methylene Chloride 06/20/2024 06/24/2024 4 14 OK
TW4-75 Nitrate+ Nitrite as N 06 /20 /2024 06/25/2024 5 28 OK
Table 1-3 Recipt Temperature Check
Sample Batch Wells in Batch Temperature
24E2464 MW-04, TW4-0l, TW4-02, TW4-04, TW4-l l, MW-26, TW4-19, TW4-21, TW4 2.9°C
22, TW4-24, TW4-25, TW4-37, TW4-39, TW4-40, TW4-41, TW4-60, Trip Blank
24F0441 MW-32, TW4-07, TW4-10, TW4-16, TW4-16R, TW4-26, TW4-29, TW4-75, 4.3°C
Trip Blank
24Fl794 TW4-03 , TW4-42 , Trip Blank -1.1 'C
TW4-05, TW4-06, TW4-08, TW4-09, TW4-12, TW4-13, TW4-14, TW4-18,
24Fl276 TW4-23, TW4-27, TW4-28, TW4-30, TW4-31, TW4-32, TW4-32R, TW4-33, 1.2°C
TW4-34 , TW4-35 , TW4-36 , TW4-38 , TW4-43, TW4-65, TW4-70, Trip Blank
1-4 Analytical Method Check
Parameter Method Method Used by Lab
SW82608,
Carbon Tetrachloride SW8260C or SW8260D
SW8260D
A4500-Cl B or
Chloride A4500-Cl E or E300.0
E300.0
SW8260B,
Chloroform SW8260C or SW8260D
SW8260D
SW8260B,
Chloromethane SW8260C or SW8260D
SW8260D
SW82608,
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
1-5 Reporting Limit Check
Lab
Reporting Dilution Required
Location Analyte Limit Units Qualifier Factor Reporting Limit RLCheck
Trip Blank Carbon Tetrachloride 1.0 ug/L u 1 1 OK
Trip Blank Chloroform 1.0 ug/L u 1 1 OK
Trip Blank Chloromethane 1.0 ug/L u 1 1 OK
Trip Blank Methylene Chloride 1.0 ug/L u 1 1 OK
Trip Blank Carbon Tetrachloride 1.0 ug/L u 1 1 OK
Trip Blank Chloroform 1.0 ug/L u 1 1 OK
Trip Blank Chloromethane 1.0 ug/L u 1 1 OK
Trip Blank Methylene Chloride 1.0 ug/L u 1 1 OK
Trip Blank Carbon Tetrachloride 1.0 ug/L u 1 1 OK
Trip Blank Chloroform 1.0 ug/L u 1 1 OK
Trip Blank Chloromethane 1.0 ug/L u 1 1 OK
Trip Blank Methylene Chloride 1.0 ug/L u 1 1 OK
Trip Blank Carbon Tetrachloride 1.00 ug/L u 1 1 OK
Trip Blank Chloroform 1.0 ug/L u 1 1 OK
Trip Blank Chloromethane 1 ug/L u 1 1 OK
Trip Blank Methylene Chloride 1.0 ug/L u 1 1 OK
MW-04 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
MW-04 Chloride 1.000 mg/L 1 I OK
MW-04 Chloroform 50.00 ug/L 50 1 OK
MW-04 Chloromethane 1.0 ug/L u 1 1 OK
MW-04 Methylene Chloride 1.0 ug/L u 1 1 OK
MW-04 Nitrate + Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-0l Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-01 Chloride 1.000 mg/L 1 1 OK
TW4-01 Chloroform 50.00 ug/L 50 1 OK
TW4-0l Chloromethane 1.0 ug/L u 1 1 OK
TW4-0l Methylene Chloride 1.0 ug/L u 1 I OK
TW4-0l Nitrate+ Nitrite as N 0.1 mg/L l 0.1 OK
TW4-02 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-02 Chloride 1.000 mg/L 1 1 OK
TW4-02 Chloroform 50.00 ug/L 50 I OK
TW4-02 Chloromethane 1.0 ug/L u 1 1 OK
TW4-02 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-02 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-03 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-03 Chloride 10.000 mg/L 10 1 OK
TW4-03 Chloroform 1.00 ug/L u 1 1 OK
TW4-03 Chloromethane 1.0 ug/L u 1 1 OK
TW4-03 Methylene Chloride 1 ug/L u 1 1 OK
TW4-03 Nitrate+ Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-04 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-04 Chloride 1.000 mg/L 1 1 OK
TW4-04 Chloroform 50.00 ug/L 50 1 OK
TW4-04 Chloromethane 1.0 ug/L u 1 1 OK
TW4-04 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-04 Nitrate+ Nitrite as N 0.2 mg/L 2 0.1 OK
TW4-05 Carbon Tetrachloride 1.0 ug/L u I 1 OK
TW4-05 Chloride 1.000 mg/L 1 1 OK
TW4-05 Chloroform 1.00 ug/L I 1 OK
1-5 Reporting Limit Check
Lab
Reporting Dilution Required
Location Analyte Limit Units Qualifier Factor Reporting Limit RL Check
TW4-05 Chloromethane 1.0 ug/L u 1 l OK
TW4-05 Methylene Chloride 1.0 ug/L u 1 l OK
TW4-05 Nitrate+ Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-06 Carbon Tetrachloride 1.0 ug/L u l l OK
TW4-06 Chloride 1.000 mg/L 1 l OK
TW4-06 Chloroform 1.00 ug/L I l OK
TW4-06 Chloromethane 1.0 ug/L u I I OK
TW4-06 Methylene Chloride 1.0 ug/L u I I OK
TW4-06 Nitrate+ Nitrite as N 0.1 mg/L I 0.1 OK
TW4-07 Carbon Tetrachloride 1.0 ug/L u I I OK
TW4-07 Chloride 1.000 mg/L I 1 OK
TW4-07 Chloroform 25.00 ug/L 25 1 OK
TW4-07 Chloromethane 1.0 ug/L u I 1 OK
TW4-07 Methylene Chloride 1.0 ug/L u l l OK
TW4-07 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-08 Carbon Tetrachloride 1.0 ug/L u 1 I OK
TW4-08 Chloride 1.000 mg/L 1 1 OK
TW4-08 Chloroform 1.00 ug/L 1 1 OK
TW4-08 Ch loromethane 1.0 ug/L u 1 I OK
TW4-08 Methylene Chloride 1.0 ug/L u I l OK
TW4-08 Nitrate+ Nitrite as N 0.1 mg/L I 0.1 OK
TW4-09 Carbon Tetrachloride 1.0 ug/L u I 1 OK
TW4-09 Chloride 1.000 mg/L I l OK
TW4-09 Chloroform 1.00 ug/L I 1 OK
TW4-09 Chloromethane 1.0 ug/L u 1 1 OK
TW4-09 Methylene Chloride 1.0 ug/L u 1 l OK
TW4-09 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-10 Carbon Tetrachloride 1.0 ug/L u 1 I OK
TW4-10 Chloride 1.000 mg/L 1 I OK
TW4-10 Chloroform 25.00 ug/L 25 I OK
TW4-10 Chloromethane 1.0 ug/L u 1 1 OK
TW4-10 Methylene Chloride 1 ug/L u 1 1 OK
TW4-10 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-l l Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-l l Chloride 1.000 mg/L I I OK
TW4-l l Chloroform 100.00 ug/L 100 1 OK
TW4-l l Chloromethane 1.0 ug/L u 1 I OK
TW4-l 1 Methylene Chloride 1.0 ug/L u I I OK
TW4-l l Nitrate+ Nitrite as N 0.2 mg/L 2 0.1 OK
TW4-12 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-12 Chloride 1.000 mg/L 1 1 OK
TW4-12 Chloroform 1.00 ug/L u 1 1 OK
TW4-12 Chloromethane 1.0 ug/L u 1 1 OK
TW4-12 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-12 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-13 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
1-5 Reporting Limit Check
Lab
Reporting Dilution Required
Location Analyte Limit Units Qualifier Factor Reporting Limit RL Check
TW4-13 Chloride 1.000 mg/L I l OK
TW4-13 Chloroform 1.00 ug/L u l 1 OK
TW4-l3 Chloromethane 1.0 ug/L u l l OK
TW4-13 Methylene Chloride 1.0 ug/L u l 1 OK
TW4-13 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-14 Carbon Tetrachloride 1.0 ug/L u l 1 OK
TW4-l4 Chloride 1.000 mg/L l 1 OK
TW4-l4 Chloroform 1.00 ug/L u l l OK
TW4-l4 Chloromethane 1.0 ug/L u l l OK
TW4-14 Methylene Chloride 1 ug/L u l l OK
TW4-14 Nitrate+ Nitrite as N 0.2 mg/L 2 0.1 OK
MW-26 Carbon Tetrachloride 1.0 ug/L u l 1 OK
MW-26 Chloride 1.000 mg/L l 1 OK
MW-26 Chloroform 100.00 ug/L 100 1 OK
MW-26 Chloromethane 1.0 ug/L u I l OK
MW-26 Methylene Chloride 1.0 ug/L I 1 OK
MW-26 Nitrate+ Nitrite as N 0.1 mg/L I 0.1 OK
TW4-16 Carbon Tetrachloride 1.0 ug/L u l 1 OK
TW4-16 Chloride 1.000 mg/L I 1 OK
TW4-16 Chloroform 1.00 ug/L 1 1 OK
TW4-16 Chloromethane 1.0 ug/L u 1 1 OK
TW4-16 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-16 Nitrate+ Nitrite as N 0.1 mg/L I 0.1 OK
TW4-16R Carbon Tetrachloride 1.0 ug/L u I 1 OK
TW4-16R Chloride 1.000 mg/L u 1 1 OK
TW4-16R Chloroform 1.00 ug/L 1 1 OK
TW4-16R Chloromethane 1.0 ug/L u 1 I OK
TW4-16R Methylene Chloride 1.0 ug/L u 1 I OK
TW4-16R Nitrate+ Nitrite as N 0.1 mg/L u 1 0.1 OK
MW-32 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
MW-32 Chloride 1.000 mg/L l 1 OK
MW-32 Chloroform 1.00 ug/L u 1 1 OK
MW-32 Chloromethane 1.0 ug/L u I 1 OK
MW-32 Methylene Chloride 1 ug/L u 1 I OK
MW-32 Nitrate + Nitrite as N 0.1 mg/L u 1 0.1 OK
TW4-18 Carbon Tetrachloride 1.0 ug/L u 1 I OK
TW4-18 Chloride 1.000 mg/L 1 1 OK
TW4-18 Chloroform 1.0 ug/L l 1 OK
TW4-18 Chloromethane 1.0 ug/L u 1 1 OK
TW4-18 Methylene Chloride 1.0 ug/L u I 1 OK
TW4-18 Nitrate+ Nitrite as N 0.1 mg/L l 0.1 OK
TW4-19 Carbon Tetrachloride 1.0 ug/L 1 1 OK
TW4-l9 Chloride 1.000 mg/L I l OK
TW4-l9 Chloroform 50.0 ug/L 50 1 OK
TW4-l9 Chloromethane 1.0 ug/L u l 1 OK
TW4-19 Methylene Chloride l ug/L u 1 1 OK
1-5 Rep o rtin g Limit Check
Lab
Reporting Dilution Required
Location Analyte Limit Units Qualifier Factor Reporting Limit RLCheck
TW4-19 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-21 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-21 Chloride 10.00 mg/L 10 1 OK
TW4-21 Chloroform 50.00 ug/L 50 1 OK
TW4-21 Chloromethane 1.0 ug/L u 1 1 OK
TW4-21 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-21 Nitrate+ Nitrite as N 1.0 mg/L 10 0 .1 OK
TW4-22 Carbon Tetrachloride 1.0 ug/L u I 1 OK
TW4-22 Chloride 5.000 mg/L 5 1 OK
TW4-22 Chloroform 100.0 ug/L 100 1 OK
TW4-22 Chloromethane 1.0 ug/L u 1 1 OK
TW4-22 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-22 Nitrate+ Nitrite as N 2.0 mg/L 20 0.1 OK
TW4-23 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-23 Chloride 1.00 mg/L I 1 OK
TW4-23 Chloroform 1.00 ug/L u 1 1 OK
TW4-23 Chloromethane 1.0 ug/L u 1 1 OK
TW4-23 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-23 Nitrate+ Nitrite as N 0.1 mg/L u 1 0.1 OK
TW4-24 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-24 Chloride 100.000 mg/L 100 1 OK
TW4-24 Chloroform 1.00 ug/L 1 1 OK
TW4-24 Chloromethane 1.0 ug/L u 1 1 OK
TW4-24 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-24 Nitrate + Nitrite as N 1.0 mg/L 10 0 .1 OK
TW4-24 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-24 Chloride 10.000 mg/L 10 1 OK
TW4-24 Chloroform 1.00 ug/L 1 1 OK
TW4-24 Chloromethane 1.0 ug/L u 1 1 OK
TW4-24 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-24 Nitrate+ Nitrite as N 1.0 mg/L 10 0.1 OK
TW4-25 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-25 Chloride 1.000 mg/L 1 1 OK
TW4-25 Chloroform 1.00 ug/L u I l OK
TW4-25 Chloromethane 1.0 ug/L u 1 1 OK
TW4-25 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-25 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-26 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-26 Chloride 1.000 mg/L 1 1 OK
TW4-26 Chloroform 25.00 ug/L 25 1 OK
TW4-26 Chloromethane 1.0 ug/L u 1 1 OK
TW4-26 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-26 Nitrate + Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-27 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-27 Chloride 1.000 mg/L 1 1 OK
TW4-27 Chloroform 1.00 ug/L 1 1 OK
I-5 Reporting Limit Check
Lab
Reporting Dilution Required
Location Analyte Limit Units Qualifier Factor Reporting Limit RLCheck
TW4-27 Chloromethane 1.0 ug/L u l 1 OK
TW4-27 Methylene Chloride 1.0 ug/L u l 1 OK
TW4-27 Nitrate + Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-28 Carbon Tetrachloride 1.0 ug/L u l 1 OK
TW4-28 Chloride 1.000 mg/L 1 1 OK
TW4-28 Chloroform 1.000 ug/L u l 1 OK
TW4-28 Chloromethane 1.000 ug/L u 1 1 OK
TW4-28 Methylene Chloride 1.000 ug/L u 1 l OK
TW4-28 Nitrate+ Nitrite as N 0.500 mg/L 5 0.1 OK
TW4-29 Carbon Tetrachloride 1.000 ug/L u 1 1 OK
TW4-29 Chloride 1.000 mg/L l 1 OK
TW4-29 Chloroform 25.00 ug/L 25 1 OK
TW4-29 Chloromethane 1.0 ug/L u 1 1 OK
TW4-29 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-29 Nitrate + Nitrite as N 0.1 mg/L l 0.1 OK
TW4-30 Carbon Tetrachloride 1.0 ug/L u l 1 OK
TW4-30 Chloride 1.000 mg/L 1 1 OK
TW4-30 Chloroform 1.00 ug/L 1 1 OK
TW4-30 Chloromethane 1.0 ug/L u 1 1 OK
TW4-30 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-30 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-31 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-31 Chloride 1.000 mg/L l 1 OK
TW4-31 Chloroform 1.00 ug/L u l 1 OK
TW4-3 l Chloromethane 1.0 ug/L u 1 1 OK
TW4-31 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-31 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-32 Carbon Tetrachloride 1.0 ug/L u 1 l OK
TW4-32 Chloride 1.000 mg/L 1 1 OK
TW4-32 Chloroform 1.00 ug/L u 1 1 OK
TW4-32 Chloromethane 1.0 ug/L u 1 1 OK
TW4-32 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-32 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-32R Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-32R Chloride 1.000 mg/L u 1 1 OK
TW4-32R Chloroform 1.00 ug/L 1 1 OK
TW4-32R Chloromethane 1.0 ug/L u 1 1 OK
TW4-32R Methylene Chloride 1.0 ug/L u 1 l OK
TW4-32R Nitrate + Nitrite as N 0.1 mg/L u 1 0.1 OK
TW4-33 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-33 Chloride 1.000 mg/L 1 1 OK
TW4-33 Chloroform 1.00 ug/L 1 1 OK
TW4-33 Chloromethane 1.0 ug/L u l 1 OK
TW4-33 Methylene Chloride 1.0 ug/L u I 1 OK
TW4-33 Nitrate+ Nitrite as N 0.2 mg/L 2 0.1 OK
TW4-34 Carbon Tetrachloride 1.0 ug/L u l 1 OK
1-5 Reportin g Limit Check
Lab
Reporting Dilution Required
Location Analyte Limit Units Qualifier Factor Reporting Limit RLCheck
TW4-34 Chloride 1.000 mg/L 1 1 OK
TW4-34 Chloroform 1.000 ug/L 1 1 OK
TW4-34 Chloromethane 1.000 ug/L u 1 1 OK
TW4-34 Methylene Chloride 1.000 ug/L u 1 1 OK
TW4-34 Nitrate+ Nitrite as N 0.100 mg/L 1 0.1 OK
TW4-35 Carbon Tetrachloride 1.000 ug/L u 1 1 OK
TW4-35 Chloride 1.000 mg/L ' 1 1 OK
TW4-35 Chloroform 1.0 ug/L 1 1 OK
TW4-35 Chloromethane 1.0 ug/L u 1 1 OK
TW4-35 Methylene Chloride 1 ug/L u 1 1 OK
TW4-35 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-36 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-36 Chloride 1.00 mg/L 1 1 OK
TW4-36 Chloroform 1.00 ug/L u 1 1 OK
TW4-36 Chloromethane 1.0 ug/L u 1 1 OK
TW4-36 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-36 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-37 Carbon Tetrachloride 1.0 ug/L 1 1 OK
TW4-37 Chloride 10.000 mg/L 10 1 OK
TW4-37 Chloroform 250.00 ug/L 250 1 OK
TW4-37 Chloromethane 1.0 ug/L u 1 1 OK
TW4-37 Methylene Chloride 1 ug/L u 1 1 OK
TW4-37 Nitrate+ Nitrite as N 0.5 mg/L 5 0.1 OK
TW4-38 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-38 Chloride 1.000 mg/L 1 1 OK
TW4-38 Chloroform 1.00 ug/L u 1 1 OK
TW4-38 Chloromethane 1.0 ug/L u 1 1 OK
TW4-38 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-38 Nitrate+ Nitrite as N 0.2 mg/L 2 0.1 OK
TW4-39 Carbon Tetrachloride 1.0 ug/L 1 1 OK
TW4-39 Chloride 1.000 mg/L 1 1 OK
TW4-39 Chloroform 100.00 ug/L 100 1 OK
TW4-39 Chloromethane 1.0 ug/L u 1 1 OK
TW4-39 Methylene Chloride 1 ug/L u 1 1 OK
TW4-39 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-40 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-40 Chloride 1.000 mg/L 1 1 OK
TW4-40 Chloroform 25.00 ug/L 25 1 OK
TW4-40 Chloromethane 1.0 ug/L u 1 1 OK
TW4-40 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-40 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-41 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-41 Chloride 1.000 mg/L 1 1 OK
TW4-41 Chloroform 50.00 ug/L 50 1 OK
TW4-41 Chloromethane 1.0 ug/L u 1 1 OK
TW4-41 Methylene Chloride 1.0 ug/L u 1 1 OK
1-5 Reporting Limit Check
Lab
Reporting Dilution Required
Location Analyte Limit Units Qualifier Factor Reporting Limit RL Check
TW4-41 Nitrate + Nitrite as N 0.2 mg/L 2 0.1 OK
TW4-42 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-42 Chloride 10.000 mg/L 10 1 OK
TW4-42 Chloroform 1.00 ug/L u I 1 OK
TW4-42 Chloromethane 1.0 ug/L u 1 1 OK
TW4-42 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-42 Nitrate+ Nitrite as N 0.1 mg/L 1 0 .1 OK
TW4-43 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-43 Chloride 1.000 mg/L 1 I OK
TW4-43 Chloroform 1.00 ug/L u 1 1 OK
TW4-43 Chloromethane 1.0 ug/L u 1 1 OK
TW4-43 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-43 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-60 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-60 Chloride 1.000 mg/L u I I OK
TW4-60 Chloroform 1.00 ug/L 1 1 OK
TW4-60 Chloromethane 1.0 ug/L u 1 I OK
TW4-60 Methylene Chloride 1.0 ug/L u 1 1 OK
TW4-60 Nitrate+ Nitrite as N 0.1 mg/L u I 0.1 OK
TW4-65 Carbon Tetrachloride 1.0 ug/L u I I OK
TW4-65 Chloride 1.000 mg/L 1 1 OK
TW4-65 Chloroform 1.00 ug/L u 1 I OK
TW4-65 Chloromethane 1.0 ug/L u 1 1 OK
TW4-65 Methylene Chloride 1.0 ug/L u I I OK
TW4-65 Nitrate+ Nitrite as N 0.1 mg/L 1 0.1 OK
TW4-70 Carbon Tetrachloride 1.0 ug/L u 1 1 OK
TW4-70 Chloride 1.000 mg/L I 1 OK
TW4-70 Chloroform 1 ug/L 1 1 OK
TW4-70 Chloromethane 1 ug/L u I 1 OK
TW4-70 Methylene Chloride 1 ug/L u I 1 OK
TW4-70 Nitrate+ Nitrite as N 0.2 mg/L 2 0.1 OK
TW4-75 Carbon Tetrachloride 1 ug/L u 1 1 OK
TW4-75 Chloride 1 mg/L 1 1 OK
TW4-75 Chloroform 1 ug/L 1 1 OK
TW4-75 Chloromethane 1 ug/L u I I OK
TW4-75 Methylene Chloride 1 ug/L u I 1 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
24E2464 Chloroform ND ug/L
Chloromethane ND ug/L
Methylene chloride ND ug/L
Carbon tetrachloride ND ug/L
240441 Chloroform ND ug/L
Chloromethane ND ug/L
Methylene chloride ND ug/L
Carbon tetrachloride ND ug/L
24Fl276 Chloroform ND ug/L
Chloromethane ND ug/L
Methylene chloride ND ug/L
Carbon tetrachloride ND ug/L
24Fl794 Chloroform ND ug/L
Chloromethane ND ug/L
Methylene chloride ND ug/L
I-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 (m g/L)
Nitrate+ Nitrite (as N)
Carbon Tetrachloride
Chloroform
Chloromethane
Dichloromethane (Methylene Chloride)
RPO = Relative Percent Difference
ND= The analyte was not detected
TW4-32
53.3
2.22
ND
ND
ND
ND
TW4-05
51.6
7.38
ND
8.5
ND
ND
TW4-16
93.8
4.63
ND
89.1
ND
ND
TW4-65
53.7
2.07
ND
ND
ND
ND
TW4-70
51.8
7.96
ND
8.1
ND
ND
TW4-75
92.1
4.54
ND
83.30
ND
ND
Highlighted cells indicate an RPO that exceeded the 20% RPO criteria
%RPO
0.7
7 .0
NC
NC
NC
NC
%RPO
0.4
7.6
NC
4.8
NC
NC
%RPO
1.8
2.0
NC
6.7
NC
NC
Per the approved QAP, an RPO greater than 20% is acceptable if the reported
results are less than 5 times the RL. These results are provided for information
1-8 QC Control Limits for Analysis and Blanks
Method Blank Detections
All Method Blanks (MB) for the quarter were nondetect.
Matrix Spike % Recoveries
MS MSD
Lab Report Lab Sample ID Well Analyte %REC %REC
24F0441 BYF0465-MS1 TW4-03 Chloromethane 64.3 64.3
24FJ276 BYF0860-MS I TW4-12 Nitrate+ Nitrite 113 95.8
24FJ276 BYF0859-MSD2 TW4-30 Nitrate+ Nitrite 110 111
24Fl276 BYF0860-MSD2 TW4-27 Nitrate+ Nitrite 99.2 118
24Fl276 BYF0809-MS1 TW4-12 Chloromethane 55.3 58.2
24Fl 101 BYF1101-MS2 MW-32 Methylene Chloride 67.1 69
NC -Not calculated
* -Recovery was not calculated because the analyte in the sample was greater than 4 times the spike amount
NI A = QC was not performed on an EFRI sample.
Laboratory Control Sample
All Laboratory Control recoveries were within acceptance limits for the quarter.
Surrogate % Recovery
All Surrogate recoveries were within acceptance limits for the quarter.
REC Range RPD RPDRange
70-130 0.16 20
90 -I JO 3.8 20
90-I JO 0.28 20
90 -I JO 1.14 20
70-130 5.11 20
70-130 2.8 20
I-9 Rinsate Evaluation
Rin ate
Rinsate Result
Sample Parameter (ug/L) Previous Well Purged
TW4-16R Chloroform 2.0 TW4-l 8 ( 49.3 ug/L)
TW4-32R Chloroform 12.6 TW4-13 (ND)
NA= This rinsate sample was collected prior to the first use of the pump.
The rinsate blanks for the quarter were ND.

Tab J
Kriged Current Quarter Chloroform Isoconcentration Map

d!Y
MW-21
~
EXPLANATION
ND • MW-JA
ND ;, • MW-2.0,---,
NS = not sampled; ND= not detected
MW-41B
◊ND
TW4-43
~ND
TWN-21
CINS
TW4-42
¢ ND
MW-32
.ND
TW4-7
0 796
TWN-1
<>NS
PIEZ-1
'-l NS
krig ed chloroform isocon and label
perched monitoring well
installed April , 202 3 showing
concentration in µg/L
temporary perched monitoring well
installed September, 2021 showing
concentration in µg/L
temporary per ched nitrate monitoring
well installed April , 2021 (not sampled )
temporary perched monitoring well
installed April, 2019 showing
concentration in µg/L
perched mon ito ri ng well showing
concentration in µg /L
temporary perched monitoring well
sh owing con centrati on in µg /L
temporary perched nitrate monitoring
well (not sampled )
perched piezometer (not sampl ed)
ND • MW-29
t,_,.
-ND • MW-30
NS a
1WN-20
ND • MW-01
NIJ • MW-18
abcindrn H.".1
♦
TWN-15
cdJandoned
0
NS
0
1WN-06
TWN-10
aba 11a o11 ed • lWN-09 •
N
0
S
PIEZ-01
a bandon ed
0
1WN-05
.a h an d rjnr>rl • \,,
1s q ; '1
TWN-07 .
N$._
~ .i twN-oJ
NS
• i .,..
1WN-02
• ----r 1u~n; !~.9Q, .
1WN-08
'NS .-t, .•
TWN-01
~baridon ed
0
TWN-11
• lW4,-~fb o: ~l!ml •TW44S
1t\s' JSTW L J7JW;4'·® ,LI ):~-, 'oN O TW4 -
12 \ ·=··. ' ~·. '. ~, "''°1W'-"
220°;, nv~3 1W4-28 <tlO l.i_• I y~t! ~ ,' .: ~' 1
ND • MW-31
•-•~ ~ '•· I •· 'fW4-13
s ,:m ~-11-l' . ~c,
'1' ·, ~ f,4-0~
' {l';N;.''4 11 W"14 ,,ND 4-36 ·, .. :.. ~ TW4-o_a 7W ·
' ,, . ~-:. ... "'~ ~
III W -4-0~,"
A66 l
t ~\d~A-4~4•14
'<'.,.:t 4-t7TW4-S1 '" nr.:4-0 llj . ~-o TV{o bN O ,·~• ...... ,. .)]Yv4-33.' _3• 3 _
,p " ~lWf'i. <W'-ffi ' ,1£ ...
-2 \\ ·:'°' __ , 1·.\ ,._\.. ti'. J 2V· 10 1W4-3.
• 1 iJf',,• ''-l'JW , f.':'> lW4'34
r I ~ • -;·'l.2,
'I ·"' c • TW.d.1 .ND
ND • MW-39
ND • MW-40
rt. h!D • MW-22
1 mile
abar1done d
0
TWN-12
NOTES : MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 are
chloroform pumping wells; TW4-22, TW4-24 , TW4-25 and TWN-2 are nitrate pumping wells; MW-24A installed December, 2019
HYDR □
GE □
CHEM, INC.
KRIGED 2nd QUARTER, 2024 CHLOROFORM (µg/L)
WHITE MESA SITE
A PPROV ED DATE REF ER ENC E FIG UR E
H :/718000/aug24/chloroform/Uchl0624 . srf J-1
• vt
t, .· .rw4.:.2:4
0 66
NS = not sampled; ND= not detected
...._7,
TW4-43
~ND
TW4-42
¢ND
MW-32
e ND
TW4-7
0 796
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)
tempora ry perched monitoring well
showing concentration (µg/L)
perched piezometer (not sampled)
TW
'i:
rwi-33rw4-27
40• • 0 OTW4-31 .•• 3 ND
rw4:29 0TW4-30
0 38 •
~4-38°W4-43
' 0 2 . *'
TW4-34
0
1
NOTES: MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21 , TW4-37, TW4-39, TW4-40 and TW4-41 are
chloroform pumping wells; TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells
HYDR □
GE □
CHEM, INC.
KRIGED 2nd QUARTER, 2024 CHLOROFORM (µg/L)
WHITE MESA SITE
( detail map)
APPR OVED DATE REFERENCE FIGURE
H:/718000/aug24/chloroform/Uchl0624det.srf I J-2
TW~l 24 .. T
0 66
EXPLANATION
NS = not sampled; ND = not detected
........
TW4-43
~ND
TW4-42
¢ND
MW-32
.ND
TW4-7
0 796
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
co ncentration (µg/L)
temporary perched monitoring well
showing concentration (µg/L)
perched piezometer (not sampled)
TW4-18
049... '
W4-0
"()14 o1w.~o
:iL :MI ,. J '~
1-'?•t~AI \;;.I -q_ ..... ~~ a·,JL,r4,-01
4-14
ONO,
3,w4 .. 27
<D .. (1TW4-3'1
3 N
4-29 ,QTW4-30
,3sfW, 0 ~ -
,.'4--34 ~
0
1
NOTES: MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 are
chloroform pumping wells; TW4-22 , TW4-24, TW4-25 and TWN-2 are nitrate pumping wells
HYDRO
GE □
CHEM, INC.
2nd QUARTER, 2024 CHLOROFORM
GREATER THAN OR EQUAL TO 70 µg/L GRID
WHITE MESA SITE
A PPROVED DATE REFERENCE FIGURE
H :/718000/a ug24/ch lorofo rm/Uch I0624ge 70. srf J-3
TabK
Analyte Concentration Data and Chloroform Concentration Trend Graphs over Time
Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-4 Tetrachloride (ug/1)
(u!!/1) (ug/1) Chloride (ug/1) (mg/I) (mg/I)
28-Sep-99 62 00
28-Sep-99 5820
28-Sep-99 6020
15-Mar-00 5520
15-Mar-00 5430
2-Sep-00 5420 9.63
30-Nov-00 6470 9.37
29-Mar-01 4360 8.77
22-Jun-01 6300 9.02
20-Sep-0l 53 00 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
2 3-Jun-03 4300 8.2
30-Jul-03 3600 8.1
29-Aug-03 4100 8.4
12-Sep-03 3500 8.5
l 5-Oct-03 3800 8.1
8-Nov-03 3800 8
29-Mar-04 NA NA
22-Jun-04 NA NA
l 7-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
l-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 2 830 2.1 1.4 <l 6.4 50
28-Feb-07 2300 1.6 <I <l 6.3 47
27-Jun-07 2000 1.8 <1 <l 7 45
15-Aug-07 2600 1.9 <1 <1 6.2 47
10-Oct-07 2300 1.7 <1 <1 6.2 45
26-Mar-08 2400 1.7 <1 <1 5.8 42
25-Jun-08 2500 1.6 <l <1 6 .09 42
10-Sep-08 1800 1.8 <l <I 6.36 35
15-Oct-08 2100 1.7 <1 <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 <1 <l 5.3 43
14-Dec-09 1800 1.6 ND ND 5.8 44
Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-4 Tetrachloride (ug/1) (ue/D (ug/1) Chloride (ug/1) (mg/I) (mg/I)
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
11-Oct-10 1500 1.4 ND ND 4.9 41
23-Feb-11 1700 1.5 ND ND 4.6 40
1-Jun-11 1700 1.4 ND ND 4.9 35
17-Aug-l 1 1700 1.1 ND ND 4.9 41
16-Nov-l l 1600 1.3 ND ND 5.1 40
23-Jan-12 1500 1 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-Oct-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-Oct-13 1410 5.58 ND ND 5.25 40.1
27-Jan-14 1390 4.15 ND ND 4.7 38.5
19-May-14 1390 5.21 ND ND 4.08 39.9
24-Aug-14 1490 ND 7.6 ND 3.7 41
2 l-Oct-14 1440 ND ND ND 5.07 41.5
9-Mar-15 1400 1.26 ND ND 5.75 40.7
8-Jun-15 1300 ND ND ND 2.53 43.1
3 l-Aug-15 1290 ND ND ND 4.79 44.3
l 9-Oct-15 1200 ND ND ND 4.43 40.8
9-Mar-16 1240 ND ND ND 5.15 42.2
23-May-16 1580 1.44 ND ND 4.54 43.7
25-Jul-16 1430 ND ND ND 4.95 42.5
12-Oct-l 6 1470 1.24 ND ND 4.88 44.8
8-Mar-17 1450 1.22 ND ND 4.99 43.3
13-Jun-l 7 1430 1.15 ND ND 4.88 44.0
26-Jul-l 7 1400 1.15 ND ND 4.59 43.8
l l-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
l l-Dec-19 1370 ND ND ND 4.34 45.5
19-Feb-20 1230 ND ND ND 6.22 48.1
27-May-20 1250 ND ND ND 5.04 40.7
4-Sep-20 1240 ND ND ND 4.93 43.8
28-Oct-20 1050 ND ND ND 4.62 41.4
23-Feb-21 1150 ND ND ND 4.61 46.5
9-Jun-21 1320 ND ND ND 6.48 34.8
24-Aug-21 1140 ND ND ND 3.83 43.2
l-Dec-21 1100 ND ND ND 4.9 47.6
QID.a>for.m Carb,m Ch1oromethane Me1i-le:De ~t~ ~orid 1\'IW-4 ~de (ugll) {uotn ()lgll) bleith {ng/l) (mgll) (mg/1)
-
9-Mar-22 1040 ND ND ND 4.8 40.9
8-Jun-22 1010 ND ND ND 3.9 43.7
30-Aug-22 1200 ND ND ND 4.20 44.7
30-Nov-22 1170 ND ND ND 4.05 35.9
7-Mar-23 1010 ND ND ND 4.44 29.4
13-Jun-23 1050 ND 2.0 ND 4.20 37.0
9-Aug-23 1030 ND ND ND 3.90 44.7
29-Nov-23 1690 ND 2.5 1.4 6.99 42.3
21-Feb-24 950 ND ND ND 4.51 43.1
29-May-24 1660 ND ND ND 4.12 45.4
0
....>.
0
0
0
"' 0
0
0
(ug/L)
w
0
0
0
.j:>,.
0
0
0
01
0
0
0
0)
0
0
0
-...J
0
0
0
Sep-99 +----+----+----;------+----r---+---.,,,,.....,..-------t
Mar-00
Sep-00
Mar-01
Sep-01
Mar-02
Sep-02
~giH I f 1 1 1·:
Sep-05
Mar-06
Sep-06
Mar-07
Sep-07
Mar-08
Sep-08
Mar-09
Sep-09
Mar-10
Sep-10
Mar-11
Sep-11
Mar-12
Sep-12
Mar-13
Sep-13
Mar-14
Sep-14
Mar-15
Sep-15
Mar-16
Sep-16
Mar-17
Sep-17
Mar-18
Sep-18
Mar-19
Sep-19
Mar-20
Sep-20
Mar-21
Sep-21
Mar-22
Sep-22
Mar-23
Sep-23
Mar-24
Sep-24 ---~---~--~---~--~---~-~
:s:
~
I
(")
::::r
0 -,
0
o' -,
3
~
C
CD
C/)
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-1 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/1) (ug/1)
'
28-Jun-99 1700 7.2
10-Nov-99 5.8
15-Mar-00 1100
10-Apr-00 1490
6-Jun-00 1530
2-Sep-00 2320 5.58
30-Nov-00 3440 7.79
29-Mar-01 2340 7.15
22-Jun-01 6000 8.81
20-Sep-0l 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-AuJ:1;-05 2900 <10 <10 <10 9.8 NA
l-Dec-05 2400 <50 <50 <50 9.7 NA
9-Mar-06 2700 <50 <50 <50 9.4 49
14-Jun-06 2200 <50 <50 <50 9.8 48
20-Jul-06 2840 <50 <50 <50 9.7 51
8-Nov-06 2260 1.4 <1 <1 9.4 47
28-Feb-07 1900 1.2 <l <l 8.9 47
27-Jun-07 1900 1.4 <1 <1 9 45
15-Aug-07 2300 1.3 <1 <1 8.4 43
10-Oct-07 2000 1.3 <1 <1 7.8 43
26-Mar-08 2000 1.3 <1 <1 7.6 39
25-Jun-08 1900 1.1 <l <l 8.68 39
10-Sep-08 1700 1.3 <1 <1 8.15 35
15-Oct-08 1700 1.3 <l <l 9.3 41
11-Mar-09 1700 1.1 <l <1 7.5 37
24-Jun-09 1500 I <1 <1 6.9 37
15-Sep-09 1700 <1 <1 <1 7.3 36
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-1 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/1) (ug/1)
29-Dec-09 1400 <l <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 <l <1 6.8 35
14-Oct-10 1500 <1 <1 <1 6.6 40
24-Feb-11 1300 ND ND ND 6.6 41
1-Jun-11 1200 ND ND ND 7 35
18-Aug-11 1300 ND ND ND 6.8 36
29-Nov-11 1300 ND ND ND 6.6 37
19-Jan-12 1300 ND ND ND 6.8 38
14-Jun-12 1000 ND ND ND 7.1 42
13-Sep-12 1000 ND ND ND 5 39
4-Oct-12 1100 ND ND ND 6.5 40
13-Feb-13 1320 3.66 ND ND 6.99 37.6
19-Jun-13 1100 ND ND ND 6.87 39.1
12-Sep-13 1150 ND ND ND 7.12 37.6
14-Nov-13 1280 ND ND ND 7.08 36.5
5-Feb-14 1090 5.47 ND ND 7.74 38.9
23-Mav-14 1020 4.77 ND ND 6.93 37.4
27-Aug-14 845 ND 1.4 ND 4.8 38
29-Oct-14 1140 ND ND ND 6.31 38.7
9-Mar-15 1130 ND ND ND 7.06 38.3
8-Jun-15 1260 ND ND ND 6.07 40.3
31-Aug-15 1060 ND ND ND 6.28 45.9
19-Oct-15 1040 ND ND ND 1.55 38.5
9-Mar-16 974 ND ND ND 0.148 41.7
23-May-16 1140 ND ND ND 0.138 44.4
25-Jul-16 1160 ND ND ND 5.49 44.7
13-Oct-16 1330 ND ND ND 0.746 44.2
8-Mar-17 519 ND ND ND 4.44 41.5
13-Jun-l 7 977 ND ND ND 5.74 41.8
26-Jul-17 958 ND ND ND 5.04 42.8
11-Oct-17 556 ND ND ND 5.78 38.5
12-Mar-18 70.4 ND ND ND 4.84 45.8
8-Jun-18 942 ND ND ND 4.38 42.0
22-Aug-l 8 1010 ND ND ND 4.30 47.3
22-Oct-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
1 0-Dec-19 1070 ND ND ND 3.91 44.2
19-Feb-20 1190 ND ND ND 4.67 47.5
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-1 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/1) (ug/1)
27-May-20 499 ND ND ND 0.443 46.4
4-Sep-20 1060 ND ND ND 2.22 43.7
28-Oct-20 924 ND ND ND 4.30 41.9
23-Feb-2 l 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
l-Dec-21 957 ND ND ND 4.37 45.5
9-Mar-22 946 ND ND ND 3.9 42.6
8-Jun-22 914 ND ND ND 0.18 45.5
30-Aug-22 954 ND ND ND 0.420 45.1
30-Nov-22 1010 ND ND ND 3.62 38.2
7-Mar-23 928 ND ND ND 1.71 43.8
13-Jun-23 830 ND 1.1 ND 3.87 42.5
9-Aug-23 891 ND 1.1 ND 3.83 44.6
29-Nov-23 1360 ND 2 1.7 3.91 43.4
21-Feb-24 832 ND ND ND 4.07 41.6
29-May-24 1400 ND ND ND 3.76 44.5
0
.....
0
0
0
N
0
0
0
(ug/L)
w
0
0
0
~
0
0
0
01
0
0
0
0)
0
0
0
---i
0
0
0
28-Jun-99 t i ■ I / I I [ I I
28-Dec-99
28-Jun-00
28-Dec-00
28-Jun-01
28-Dec-01
28-Jun-02
28-Dec-02
28-Jun-03
28-Dec-03
28-Jun-04
28-Dec-04
28-Jun-05
28-Dec-05
28-Jun-06
28-Dec-06
28-Jun-07
28-Dec-07
28-Jun-08
28-Dec-08
28-Jun-09
28-Dec-09
28-Jun-10
28-Dec-10
28-Jun-11
28-Dec-11
28-Jun-12
28-Dec-12
28-Jun-13
28-Dec-13
28-Jun-14
28-Dec-14
28-Jun-15
28-Dec-15
28-Jun-16
28-Dec-16
28-Jun-17
28-Dec-17
28-Jun-18
28-Dec-18
28-Jun-19
28-Dec-19
28-Jun-20
28-Dec-20
28-Jun-21
28-Dec-21
28-Jun-22
28-Dec-22
28-Jun-23
28-Dec-23
28-Jun-24
28-Dec-24 ....__ __ __._ ___ _._ __ ___..__ __ __._ ___ ~--~--____,
i
I
~
(")
:r
0
""I
0
o'
""I
3
~
C
Cl) en
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-2 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (mdD (ue/1)
10-Nov-99 2510
2-Sep-00 5220
28-Nov-00 4220 10.7
29-Mar-01 3890 10.2
22-Jun-01 5500 9.67
20-Sep-0l 4900 11.4
8-Nov-01 5300 10.1
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
l 7-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
1-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 <1 7.6 55
28-Feb-07 2900 1.8 <1 <1 7.3 54
27-Jun-07 3000 2.5 <l <l 7.8 50
15-Aug-07 340 2.2 <l <l 7.3 49
10-Oct-07 3200 2.1 <I <1 6.9 51
26-Mar-08 3300 2.3 <l <l 6.9 48
25-Jun-08 3100 2.2 <I <l 7.44 46
10-Sep-08 2800 2.4 <l <l 7.1 42
15-Oct-08 3200 2.4 <2 <2 7.99 47
l l-Mar-09 3100 2.2 <1 <l 6.5 46
24-Jun-09 2800 2 <1 <l 6.4 44
15-Sep-09 3000 2 <1 <l 6.6 43
29-Dec-09 1600 2 <1 <l 6.4 46
3-Mar-10 2600 2 <1 <I 6.8 42
15-Jun-10 3300 2.6 <1 <I 6.7 43
16-Aug-10 3300 2.5 <I <I 6.6 43
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-2 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/l) (ue/1)
14-Oct-10 3000 2.1 <l <1 6.5 41
24-Feb-11 3100 2.4 ND ND 7 46
2-Jun-11 3000 2.2 ND ND 6.8 42
l 7-Aug-11 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-Oct-12 3100 2 ND ND 7.6 49
13-Feb-13 3580 5.17 ND ND 8.1 46
19-Jun-13 3110 2.65 ND ND 7.51 46.9
12-Sep-13 3480 2.41 ND ND 9.3 44.9
14-Nov-13 3740 3.15 ND ND 8.39 43.9
6-Feb-14 3180 7.1 ND ND 7.87 45.9
23-May-14 2930 6.05 ND ND 9.11 45.4
27-Aug-14 3170 1.4 3.6 ND 6.2 45
30-Oct-14 3580 2.6 ND ND 8.45 45.5
9-Mar-15 1840 1.44 ND ND 5.32 44.9
8-Jun-15 1650 ND ND ND 4.3 48.1
31-Aug-15 1310 ND ND ND 3.76 50.0
19-Oct-15 2070 ND ND ND 5.18 41.9
9-Mar-16 1970 1.20 ND ND 5.30 43.4
23-May-16 2070 1.49 ND ND 5.67 43.8
25-Jul-16 1780 ND ND ND 4.07 42.9
12-Oct-16 1600 ND ND ND 6.07 44.3
8-Mar-17 1570 ND ND ND 4.74 43.1
13-Jun-l 7 1940 ND ND ND 4.90 43.6
26-Jul-l 7 1310 ND ND ND 5.08 43.2
l l-Oct-17 1610 ND ND ND 3.28 43.5
12-Mar-18 764 ND ND ND 2.94 44.4
8-Jun-18 949 ND ND ND 3.50 41.3
22-Aug-18 980 ND ND ND 4.83 44.3
28-Nov-18 822 ND ND ND 3.52 41.7
8-Mar-19 1040 ND ND ND 3.92 40.4
5-Jun-19 1360 ND ND ND 4.38 39.8
4-Sep-19 797 ND ND ND 4.79 40.8
10-Dec-19 934 ND ND ND 3.40 41.5
19-Feb-20 1880 ND ND ND 6.07 42.1
27-May-20 1070 ND ND ND 3.62 40.6
4-Sep-20 1260 ND ND ND 3.35 41.3
28-Oct-20 1130 ND ND ND 2.34 38.7
-23-Feb-21 939 ND ND ND 3.30 43.3
"r bt , ijj rm ~bG~ ~romethane M_eth )'l~e Nitra11le Chloride :rw~ T: .i':r,achlo:ride eJill Qride (.ugll)
'€02:/l)
(ug/1) t!U.@li;l;l, (mgll) ~mg/J)
9-Jun-21 1160 ND ND ND 3.89 32.5
24-Aug-21 1150 ND ND ND 1.97 36.8
l-Dec-21 852 ND ND ND 3.49 41.9
9-Mar-22 1020 ND ND ND 3.3 36.7
8-Jun-22 892 ND ND ND 3.1 39.5
30-Aug-22 832 ND ND ND 3.07 40.7
30-Nov-22 1030 ND ND ND 3.74 35.5
7-Mar-23 772 ND ND ND 2.03 41.4
13-Jun-23 788 ND 1.2 ND 3.70 38.1
9-Aug-23 867 ND ND ND 3.23 41.2
29-Nov-23 1200 ND 2.8 ND 2.97 44.5
21-Feb-24 925 ND ND ND 3.62 41.2
29-May-24 1480 ND ND ND 2.84 41.2
(ug/L)
Nov-99 -.-----r-------ir----==------r-------,.--,------r------,
May-00
Nov-00
May-01
Nov-01
May-02
Nov-02
May-03
Nov-03
May-04
Nov-04
May-05
Nov-05
May-06 -
Nov-06
May-07 ••
Nov-07
May-08
Nov-08
May-09
Nov-09
May-10
Nov-10
May-11
Nov-11
May-12
Nov-12
May-13
Nov-13
May-14
Nov-14
May-15
Nov-15
May-16
Nov-16
May-17
Nov-17 ••
May-18 ·
Nov-18 -
May-19 •
Nov-19
May-20
Nov-20
May-21
Nov-21
May-22
Nov-22
May-23
Nov-23
May-24
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-3 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I)
(,02'I) (02/1)
28-Jun-99 3500 7.6
29-Nov-99 702
15-Mar-00 834
2-Sep-00 836 1.56
29-Nov-00 836 1.97
27-Mar-01 347 1.85
21-Jun-01 390 2.61
20-Sep-0l 300 3.06
7-Nov-01 170 3.6
26-Mar-02 11 3.87
21-May-02 204 4.34
12-Sep-02 203 4.32
24-Nov-02 102 4.9
28-Mar-03 0 4.6
23-Jun-03 0 4.8
12-Sep-03 0 4.3
8-Nov-03 0 4.8
29-Mar-04 0 4.48
22-Jun-04 0 3.68
17-Sep-04 0 3.88
17-Nov-04 0 4.1
16-Mar-05 0 3.5
25-May-05 <l NA NA NA 3.7 NA
31-Aug-05 <l <1 6.4 <1 3.5 NA
1-Dec-05 <I <l 2.3 <1 3.3 NA
9-Mar-06 <1 <1 2.2 <1 3.3 26
14-Jun-06 <l <l <l <1 3.2 26
20-Jul-06 <l <1 1.6 <1 2.9 26
8-Nov-06 <l <I <1 <I 1.5 23
28-Feb-07 <I <I <1 <I 3.1 22
27-Jun-07 <l <1 <l <l 3.3 23
15-Aug-07 <l <l <l <1 3.1 24
10-Oct-07 <1 <1 <1 <1 2.8 27
26-Mar-08 <l <1 <l <1 2.8 21
25-Jun-08 <l <l <1 <1 2.85 19
I0-Sep-08 <l <l <l <1 2.66 19
15-Oct-08 <l <1 <1 <1 2.63 22
4-Mar-09 <1 <1 <1 <1 2.5 21
24-Jun-09 <1 <l <1 <l 2.9 20
15-Sep-09 <1 <1 <l <1 2.8 21
16-Dec-09 <l <l <l <l 2.5 22
23-Feb-IO <l <l <l <l 2.8 23
8-Jun-10 <1 <1 <1 <1 3 24
10-Aug-10 <l <1 <1 <1 3.1 22
5-Oct-10 <l <l <l <l 3.3 26
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-3 (ug/1) Tetrachloride (ug/1) Chloride (mg/1) (mg/1) _(uwl) (ue/1)
15-Feb-11 ND ND ND ND 3.5 23
25-May-l l ND ND ND ND 3.7 23
16-Aug-l l ND ND ND ND 4 23
15-Nov-l 1 ND ND ND ND 4.4 23
l 7-Jan-12 ND ND ND ND 4.3 21
3 l-May-12 ND ND ND ND 4.4 24
29-Aug-12 ND ND ND ND 4.9 25
3-Oct-12 ND ND ND ND 4.8 25
7-Feb-13 ND ND ND ND 5.05 23.7
29-May-13 ND ND ND ND 5.83 23.8
29-Aug-13 ND ND ND ND 6.26 24.0
6-Nov-13 ND ND ND ND 5.89 24.1
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-Oct-14 ND ND ND ND 6.07 26.7
1 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-Oct-15 ND ND ND ND 5.37 25.6
15-Mar-16 ND ND ND ND 5.83 32.8
25-May-16 ND ND ND ND 5.65 27.9
27-Jul-16 ND ND ND ND 6.10 26.5
19-Oct-16 ND ND ND ND 6.00 29.5
14-Mar-17 ND ND ND ND 6.18 28.1
14-Jun-l 7 ND ND ND ND 6.36 28.7
27-Jul-17 ND ND ND ND 6.36 28.5
10-Oct-l 7 ND ND ND ND 6.32 25.9
14-Mar-18 ND ND ND ND 6.46 29.8
12-Jun-18 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
l 7-Mar-20 ND ND ND ND 6.15 27.7
10-Jun-20 ND ND ND ND 6.53 26.2
l 7-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
Cblorofqrm Carbon
~ltletb -
Me il1ylen::~ !1lr:;a1fre Chlorid~ TW4-3 11etraclifo.m.de f4bil:P "•ij
~ (ug»l) l •Qr,J,i •
'(:iii~ [(Ur~, fui!/1) ·ei:t:~ilil
15-Jun-22 ND ND ND ND 5.8 26.7
13-Sep-22 ND ND ND ND 5.47 27.3
7-Dec-22 ND ND ND ND 6.64 21.5
22-Mar-23 ND ND ND ND 6.09 20.6
15-Jun-23 ND ND ND ND 6.38 23.5
9-Aug-23 ND ND ND ND 6.40 26.9
6-Dec-23 ND ND ND ND 6.65 18.1
13-Mar-24 ND ND ND ND 6.64 26.9
4-Jun-24 ND ND ND ND 6.42 26.4
Jun-99
Dec-99
Jun-00
Dec-00
Jun-01
Dec-01
Jun-02
Dec-02
Jun-03
Dec-03
Jun-04
Dec-04
Jun-05
Dec-05
Jun-06
Dec-06
Jun-07
Dec-07
Jun-08
Dec-08
Jun-09
Dec-09
Jun-10
Dec-10
Jun-11
Dec-11
Jun-12
Dec-12
Jun-13
Dec-13
Jun -14
Dec-14
Jun-15
Dec-15
Jun-16
Dec-16
Jun-17
Dec-17
Jun-18
Dec-18
Jun-19
Dec-19
Jun -20
Dec-20
Jun-21
Dec-21
Jun-22
Dec-22
Jun-23
Dec-23
Jun-24
Dec-24
0
0
......
0, 0
0 0
0 0
6 6
(ug/L)
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0 0 0
0 0 0
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0
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-4 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (ue/1)_
6-Jun-00 0
2-Sep-00 0
28-Nov-00 3.9
28-Mar-01 2260 1.02
20-Jun-0l 3100 14.5
20-Sep-0l 3200 14
8-Nov-01 2900 14.8
26-Mar-02 3400 15
22-May-02 3200 13.2
12-Sep-02 4000 13.4
24-Nov-02 3800 12.6
28-Mar-03 3300 13.4
23-Jun-03 3600 12.8
12-Sep-03 2900 12.3
8-Nov-03 3500 12.3
29-Mar-04 3200 12.2
22-Jun-04 3500 12.1
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
1-Dec-05 2800 <50 <50 <50 10.2 NA
9-Mar-06 2900 <50 <50 <50 9.5 51
14-Jun-06 2600 <50 <50 <50 8.6 48
20-Jul-06 2850 <50 <50 <50 9.7 50
8-Nov-06 2670 1.7 <I <I 10.1 49
28-Feb-07 2200 1.5 <I <I 9 49
27-Jun-07 2400 1.7 <l <I 9.4 47
15-Aug-07 2700 1.5 <I <I 9.5 45
10-Oct-07 2500 1.5 <I <I 9.5 47
26-Mar-08 2800 1.6 <I <I 9.2 43
25-Jun-08 2500 1.5 <I <l 10.8 42
I0-Sep-08 2200 1.4 <I <I 8.83 39
l 5-Oct-08 2500 2 <2 <2 I 0.1 44
4-Mar-09 2200 1.2 <I <I 10.2 37
24-Jun-09 1800 1.2 <I <l 8.2 34
15-Sep-09 2000 1.1 <l <l 8.4 39
29-Dec-09 950 1.1 <l <1 7.6 41
17-Feb-10 1700 I <I <l 6.6 48
10-Jun-10 2000 1.2 <1 <1 7.6 35
16-Aug-10 2100 1.3 <l <I 7.3 36
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-4 (ug/1) Tetrachloride {ug/1) Chloride {mg/I) (mg/I) <u21I) (u2fl)
11-Oct-l 0 1700 1.3 <l <l 7.1 38
23-Feb-l l 1800 1.4 ND ND 7 41
l-Jun-11 1700 1.2 ND ND 7 35
17-Aug-ll 1500 ND ND ND 6.6 40
16-Nov-ll 1500 1 ND ND 7 39
23-Jan-12 1200 ND ND ND 7.1 38
6-Jun-12 1500 ND ND ND 7.1 43
4-Sep-12 1600 1.2 ND ND 7.1 39
3-Oct-12 1400 1 ND ND 7 38
l 1-Feb-13 1460 1.12 ND ND 7.36 39
5-Jun-13 1330 ND ND ND 6.3 39.6
3-Sep-13 1380 ND ND ND 7.22 38.8
29-Oct-13 1360 5.3 ND ND 7 .84 43.9
27-Jan-14 1260 3.88 ND ND 7.28 37.4
19-May-14 1220 5 ND ND 5.91 47.5
l l-Aug-14 1320 ND 7 ND 5.30 40.0
21-Oct-14 1130 ND ND ND 7.02 40.0
9-Mar-15 1350 1 ND ND 7.70 37.6
8-Jun-15 1280 ND ND ND 6.33 41.3
31-Aug-15 1220 ND ND ND 6.45 45.8
19-Oct-15 1190 ND ND ND 6.27 38.5
9-Mar-16 1190 ND ND ND 6.71 39.7
23-May-16 1780 1 ND ND 6.56 41.9
26-Jul-16 1380 ND ND ND 7.22 40.2
13-Oct-16 1430 ND ND ND 6.77 42.3
8-Mar-17 1290 ND ND ND 6.87 41.7
13-Jun-17 1290 ND ND ND 7.06 40.7
26-Jul-17 1290 ND ND ND 6.47 40.5
ll-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
10-Dec-19 1140 ND ND ND 6.52 40.4
19-Feb-20 1100 ND ND ND 4.58 43.4
27-May-20 1140 ND ND ND 7.26 46.1
4-Sep-20 1110 ND ND ND 7.04 40.0
28-Oct-20 979 ND ND ND 6.77 38.6
23-Feb-21 1130 ND ND ND 6.75 39.8
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-4 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2'1) (u2'1)
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 1110 ND ND ND 6.0 39 .9
30-Aug-22 1040 ND ND ND 6.65 41.0
30-Nov-22 1030 ND ND ND 6.59 29.6
7-Mar-23 945 ND ND ND 7.12 30.2
13-Jun-23 1980 ND 1.9 ND 6.82 39.7
9-Aug-23 1020 ND 1.9 ND 6.08 40.6
29-Nov-23 1530 ND 2.6 2 4.44 42.7
21-Feb-24 996 ND ND ND 7.08 40.6
29-May-24 1620 ND ND ND 6.87 40 .5
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(116n)
Chloroform Carbon Chloromethane Methylene Nitrate Chloride II
TW4-5 (ug/1) Tetrachloride (ug/1) Chloride (mg/1) (mg/1) (ue:/l) (ue:/1)
20-Dec-99 29.5
15-Mar-00 49.0
2-Sep-00 124
29-Nov-00 255
28-Mar-01 236
20-Jun-01 240
20-Sep-0I 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
I 7-Nov-04 180
16-Mar-05 120
25-May-05 113 NA NA NA 3.70 NA
31-Aug-05 82.0 <2.5 5.8 <2.5 6.00 NA
1-Dec-05 63.0 <2.5 2.5 <2.5 6.00 NA
9-Mar-06 66.0 <2.5 3.1 <2.5 6.00 52
14-Jun-06 51.0 <I <2.5 <2.5 5.90 51
20-Jul-06 53.7 <I <l <I 6.70 54
8-Nov-06 47.1 <I <l <I 2.90 55
28-Feb-07 33.0 <I <I <I 7.80 57
27-Jun-07 26.0 <l <l <I 7.00 45
15-Aug-07 9.2 <I <l <I 7.70 38
10-Oct-07 9.4 <I <1 <1 8.20 39
26-Mar-08 11.0 <I <1 <1 7.40 36
25-Jun-08 9.3 <1 <1 <1 8.70 37
10-Sep-08 11.0 <1 <l <I 7.91 34
l 5-Oct-08 10.0 <l <l <1 9.30 37
4-Mar-09 12.0 <-1 <I <I 7.90 34
24-Jun-09 13.0 <I <I <I 7.50 37
15-Sep-09 12.0 <I <I <I 8.30 48
22-Dec-09 8.5 <I <I <I 7.50 41
25-Feb-10 13.0 <I <1 <1 6.80 43
9-Jun-10 12.0 <1 <1 <1 7.10 28
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-5 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I)
:,_ (ue/1) (ue/l)
11-Aug-10 12.0 <1 <1 <1 7.00 38
13-Oct-10 11.0 <1 <1 <1 7.20 41
22-Feb-11 10.0 ND ND ND 7.00 34
26-May-11 9.0 ND ND ND 7.20 35
17-Aug-11 10.0 ND ND ND 7.50 37
7-Dec-11 7.9 ND ND ND 6.00 30
18-Jan-12 7.6 ND ND ND 5.80 22
6-Jun-12 8.4 ND ND ND 8.00 39
l 1-Sep-12 12.0 ND ND ND 8.10 37
3-Oct-12 8.0 ND ND ND 7.70 38
13-Feb-13 10.8 ND ND ND 8.24 34.3
13-Jun-13 11.2 ND ND ND 10.70 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 7.20 44
28-Oct-14 14.6 ND ND ND 8.31 45.1
12-Mar-15 13.8 ND ND ND 9.32 45.1
10-Jun-15 13.3 ND 1.07 ND 7.08 47.3
3-Sep-15 12.9 ND ND ND 8.10 52.2
28-Oct-l 5 11.0 ND ND ND 8.03 43.6
17-Mar-16 11.0 ND ND ND 10.20 44.7
26-May-16 13.6 ND ND ND 8.98 45.9
25-Jul-16 10.8 ND ND ND 8.49 44.6
26-Oct-16 10.8 ND ND ND 8.32 47.8
15-Mar-17 12.6 ND ND ND 8.49 44.7
15-Jun-17 14.6 ND ND ND 8.52 47.3
2-Aug-17 14.6 ND ND ND 8.52 48.6
IO-Oct-17 13.8 ND ND ND 8.57 42.5
15-Mar-18 15.2 ND ND ND 8.36 51.2
13-Jun-18 13.9 ND ND ND 9.24 47.4
30-Aug-18 15.4 ND ND ND 7.34 54.7
12-Dec-18 15.6 ND ND ND 7.67 49.8
16-Mar-19 14.1 ND ND ND 7.38 47.6
13-Jun-19 15.8 ND -ND ND 7.62 49.3
11-Sep-19 14.6 ND ND ND 7.02 46.1
14-Dec-19 15.7 ND ND ND 6.97 53.1
17-Mar-20 14.8 ND ND ND 7.10 48.3
I 1-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
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-S (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u211) (u2/l)
18-Mar-21 12.9 ND ND ND 7.43 46.0
16-Jun-21 13.0 ND ND ND 8.11 50.8
22-Sep-21 11.2 ND ND ND 6.63 39.8
8-Dec-21 12.4 ND ND ND 6.71 51.3
23-Mar-22 11.0 ND ND ND 7.30 47.7
16-Jun-22 10.3 ND ND ND 7.10 40.7
14-Sep-22 13.2 ND ND ND 7.22 45.8
8-Dec-22 7.6 ND ND ND 7.54 51.8
29-Mar-23 8.6 ND ND ND 6.27 51.3
21-Jun-23 8.1 ND ND ND 7.13 52.5
14-Sep-23 9.1 ND ND ND 8.83 50.5
7-Dec-23 8.4 ND ND ND 7.66 49.4
21-Feb-24 8.7 ND ND ND 8.02 51.8
13-Jun-24 8.5 ND ND ND 7.38 51.6
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0
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0
0
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0
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0
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0
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-6 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2fl)_ (u2'1)
6-Jun-00 0
2-Sep-00 0
28-Nov-00 0 ND
26-Mar-01 0 0.13
20-Jun-01 0 ND
20-Sep-01 4 ND
7-Nov-01 1 ND
26-Mar-02 0 ND
21-May-02 0 ND
12-Sep-02 0 ND
24-Nov-02 0 ND
28-Mar-03 0 0.1
23-Jun-03 0 ND
12-Sep-03 0 ND
8-Nov-03 0 ND
29-Mar-04 0 ND
22-Jun-04 0 ND
17-Sep-04 0 ND
17-Nov-04 0 ND
16-Mar-05 0 0.2
25-May-05 2.5 NA NA NA 0.4 NA
31-Aug-05 10.0 <1 2.8 <1 0.8 NA
1-Dec-05 17.0 <1 1.3 <1 0.9 NA
9-Mar-06 31.0 <1 <1 <1 1.2 31
14-Jun-06 19.0 <l <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 <l 1.5 32
27-Jun-07 11.0 <1 <1 <1 0.6 38
15-Aug-07 18.0 <1 <1 <1 0.7 36
10-Oct-07 18.0 <1 <1 <1 0.8 38
26-Mar-08 52.0 <1 <1 <1 1.1 33
25-Jun-08 24.0 <1 <1 <1 0.9 35
10-Sep-08 39.0 <l <l <1 1.14 35
15-Oct-08 37.0 <1 <1 <1 1.01 33
1 l-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
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
Chloroform Carbon Chloromethane Methylene Nitrate Chloride ,, TW4-6 Tetrachloride Chloride
I
(ug/1) (ul!ll) (ug/1)
(ue/1)
(mg/I) (mg/I)
13-Oct-10 420 <l <l <l 4.3 41
23-Feb-11 47 ND ND ND 0.7 40
26-May-11 10 ND ND ND 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-Oct-12 9.0 ND ND ND 0.2 41
13-Feb-13 6.9 ND ND ND 0.154 40.4
13-Jun-13 4.9 ND ND ND 0.155 37.9
5-Sep-13 5.9 ND ND ND 0.157 40.6
13-Nov-13 5.5 ND ND ND 1.52 40.2
29-Jan-14 5.7 ND ND ND 0.184 40.6
22-May-14 10.3 ND ND ND 0.312 37
14-Aug-14 202 ND ND ND 4.2 40
24-Sep-14 260 ND ND ND NIA NIA
29-Oct-14 723 ND ND ND 6.92 41.1
18-Mar-15 1180 ND ND ND 5.25 41.2
11-Jun-15 1040 ND ND ND 5.87 41.6
10-Sep-15 1040 ND ND ND 6.75 47.0
29-Oct-15 843 ND ND ND 5.61 40.2
22-Mar-16 834 ND ND ND 6.79 42.0
8-Jun-16 486 ND ND ND 3.19 44.1
4-Aug-16 433 ND ND ND 3.85 42.2
26-Oct-16 301 ND ND ND 3.74 46.1
16-Mar-l 7 288 ND ND ND 3.15 42.1
2 l-Jun-17 239 ND ND ND 2.42 42.6
3-Aug-17 129 ND ND ND 1.71 42.9
1 l-Oct-17 121 ND ND ND I. 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
11-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
11-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
-
Carbon Methylene Chloroform Chloromethane Nitrate Chloride TW4-6 (ug/1) Tetrachloride (ug/1) Chloride (mg/1) (mg/I) (u2'1.l (02/1)
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
14-Sep-22 3.90 ND ND ND 0.144 38.7
8-Dec-22 1.50 ND ND ND 0.134 40.7
29-Mar-23 1.70 ND ND ND <0.100 43.2
20-Jun-23 2.30 ND ND ND 0.134 44.7
14-Sep-23 2.6 ND ND ND 0.170 44.0
7-Dec-23 1.5 ND ND ND 0.140 42.2
13-Mar-24 1.7 ND ND ND 0.180 44.2
12-Jun-24 2.0 ND ND ND 0.181 39.9
24-Jul-98
19-Apr-01
14-Jan-04
10-Oct-06
6-Jul-09
1-Apr-12
27-Dec-14
22-Sep-17
18-Jun-20
15-Mar-23
9-Dec-25
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-7 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug-/1) (u2/I)
29-Nov-99 256
15-Mar-00 616
2-Sep-00 698
29-Nov-00 684 1.99
28-Mar-01 747 2.46
20-Jun-01 1100 2.65
20-Sep-0l 1200 3.38
8-Nov-01 1100 2.5
26-Mar-02 1500 3.76
23-May-02 1600 3.89
12-Sep-02 1500 3.18
24-Nov-02 2300 4.6
28-Mar-03 1800 4.8
23-Jun-03 5200 7.6
12-Sep-03 3600 7.6
8-Nov-03 4500 7.1
29-Mar-04 2500 4.63
22-Jun-04 2900 4.83
17-Sep-04 3100 5.59
17-Nov-04 3800 6
16-Mar-05 3100 5.2
25-May-05 2700 NA NA NA 5.4 NA
31-Aug-05 3100 <10 <10 <10 5.2 NA
l-Dec-05 2500 <50 <50 <50 5.3 NA
9-Mar-06 1900 <50 <50 <50 1 48
14-Jun-06 2200 <50 <50 <50 4.5 47
20-Jul-06 2140 <50 <50 <50 4.7 51
8-Nov-06 2160 1.5 <l <l 4.6 49
28-Feb-07 1800 1.1 <l <l 5 47 ·
27-Jun-07 2600 1.5 <l <l 5.1 45
14-Aug-07 2300 1.4 <l <l 4.7 44
1 0-Oct-07 1900 1.2 <l <l 4.7 45
26-Mar-08 2200 1.3 <l <l 4.2 43
25-Jun-08 1800 1.3 <l <l 4.8 43
10-Sep-08 1600 1.4 <l <l 4.16 35
15-Oct-08 1900 <2 <2 <2 4.01 40
l l-Mar-09 1800 1.2 <l <l 3.7 35
24-Jun-09 1400 <l <l <l 3.8 37
15-Sep-09 1500 1.0 <1 <1 4.1 37
29-Dec-09 1300 <l <l <l 4.2 37
3-Mar-10 1200 <l <l <l 3.8 36
10-Jun-10 1100 <1 <1 <l 3.9 31
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-7 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (u!!/1)
18-Aug-l0 1500 I.I <I <I 3.9 36
13-Oct-10 1100 I.I <1 <1 4 38
23-Feb-11 1300 ND ND ND 3.60 45
I-Jun-I I 1200 ND ND ND 4.00 35
18-Aug-l l 1200 ND ND ND 4.10 37
29-Nov-l1 1000 ND ND ND 3.80 37
19-Jan-12 1000 ND ND ND 3.90 37
14-Jun-12 790 ND ND ND 4.00 41
13-Sep-12 870 ND ND ND 3.80 40
4-Oct-12 940 ND ND ND 3.80 41
13-Feb-13 1080 3.51 ND ND 3.90 37.7
18-Jun-13 953 ND ND ND 4.04 39.3
12-Sep-13 1040 ND ND ND 4.17 36.4
14-Nov-13 1050 ND ND ND 4.13 37.2
5-Feb-14 946 5.41 ND ND 4.24 38.2
23-May-14 847 4.78 ND ND 4.19 37.7
27-Aug-14 857 ND 1.5 ND 2.90 39
30-Oct-14 926 ND ND ND 3.68 40.2
18-Mar-15 942 ND ND ND 4.25 40.4
l 1-Jun-15 950 ND ND ND 2.62 42.1
10-Sep-15 897 ND ND ND 4.72 46.7
29-Oct-15 847 ND ND ND 3.49 40.6
22-Mar-16 834 ND ND ND 4.43 42.4
8-Jun-16 909 ND ND ND 3.75 44.1
4-Aug-16 1000 ND ND ND 4.21 42.3
27-Oct-16 886 ND ND ND 4.33 45.8
21-Mar-l 7 986 ND ND ND 3.87 40.5
21-Jun-l 7 968 ND ND ND 4.15 43.3
4-Aug-17 1070 ND ND ND 4.20 44.7
11-Oct-l 7 884 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
I 9-Jun-19 862 ND ND ND 4.19 43.0
12-Sep-19 801 ND ND ND 3.76 39.7
l 8-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
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-7 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uf!/1) fue/1)_
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
15-Sep-22 887 ND ND ND 3.77 45.0
9-Dec-22 824 ND ND ND 4.06 44.8
29-Mar-23 619 ND ND ND 3.85 44.9
21-Jun-23 706 ND ND ND 3.89 45.7
27-Sep-23 790 ND ND ND 4.02 45.2
13-Dec-23 644 ND ND ND 3.97 44.3
15-Mar-24 636 ND ND ND 4.11 44.5
20-Jun-24 796 ND ND ND 3.99 46.1
0
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14-Jan-04
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27-Dec-14
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15-Mar-23
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-8 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) <m~in (u1!/0.
29-Nov-99 0
15-Mar-00 21.8
2-Sep-00 102
29-Nov-00 107 ND
26-Mar-01 116 ND
20-Jun-01 180 ND
20-Sep-01 180 0.35
7-Nov-01 180 ND
26-Mar-02 190 0.62
22-May-02 210 0.77
12-Sep-02 300 ND
24-Nov-02 450 ND
28-Mar-03 320 0.8
23-Jun-03 420 ND
12-Sep-03 66.0 ND
8-Nov-03 21.0 0.1
29-Mar-04 24.0 0.65
22-Jun-04 110 0.52
l 7-Sep-04 120 ND
17-Nov-04 120 ND
16-Mar-05 10.0 ND
25-May-05 <l NA NA NA 0.2 NA
3I-Aug-05 1.1 <I 1.7 <1 <0.1 NA
30-Nov-05 <1 <1 <1 <1 <0.1 NA
9-Mar-06 1.3 <1 2.1 <1 0.3 39
14-Jun-06 1.0 <l 1.8 <l <0.1 37
20-Jul-06 <I <I <I <1 0.1 39
8-Nov-06 <I <1 <1 <I <0.1 40
28-Feb-07 2.5 <1 <I <1 0.7 39
27-Jun-07 2.5 <1 <l <l 0.2 42
l5-Aug-07 1.5 <l <l <l <0.1 42
10-Oct-07 3.5 <I <l <1 0.5 43
26-Mar-08 <I <I <1 <1 0.1 46
25-Jun-08 <l <l <l <I <0.05 45
10-Sep-08 <l <l <I <l <0.05 39
l 5-Oct-08 <I <1 <I <1 <0.05 44
4-Mar-09 <1 <I <1 <I <0.1 42
24-Jun-09 <1 <1 <l <1 <0.1 44
15-Sep-09 <1 <l <I <I <1 44
17-Dec-09 <l <1 <l <1 <0.1 51
24-Feb-10 <l <I <l <I <0.1 57
9-Jun-10 <1 <l <l <1 <0.1 42
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-8 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u211) (ue/1}
l l-Aug-10 <1 <1 <1 <1 <0.1 45
5-Oct-10 <1 <l <1 <l <0.1 46
16-Feb-l l ND ND ND ND ND 52
25-May-l 1 ND ND ND ND 0.1 45
16-Aug-11 ND ND ND ND 0.1 46
7-Dec-11 ND ND ND ND 0.2 45
18-Jan-12 ND ND ND ND 0.3 45
31-May-12 ND ND ND ND 0.2 44
29-Aug-12 ND ND ND ND 0.1 48
3-Oct-12 ND ND ND ND ND 47
7-Feb-13 ND ND ND ND 0.411 46.6
30-May-13 ND ND ND ND ND 45.5
5-Sep-13 ND ND ND ND ND 47.5
7-Nov-13 ND ND ND ND ND 46.1
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-Oct-14 191 ND ND ND 0.914 46.7
12-Mar-15 961 ND ND ND 2.34 49.6
l l-Jun-15 981 ND ND ND 1.88 53
10-Sep-15 747 ND ND ND 1.96 59.6
29-Oct-15 770 ND ND ND 2.20 52.0
17-Mar-16 634 ND ND ND 2.48 54.2
8-Jun-16 595 ND ND ND 2.14 58.7
4-Aug-16 522 ND ND ND 2.10 56.9
27-Oct-16 472 ND ND ND 2.16 60.1
21-Mar-l 7 359 ND ND ND 2.06 57.4
21-Jun-17 256 ND ND ND 1.97 58.8
4-Aug-17 223 ND ND ND 1.64 61.2
11-Oct-17 214 ND ND ND 1.97 52.2
21-Mar-18 220 ND ND ND 1.36 60.8
14-Jun-18 155 ND ND ND 1.31 53.8
5-Sep-18 137 ND ND ND 1.40 63.2
13-Dec-18 93.8 ND ND ND 0.123 65.8
19-Mar-19 103 ND ND ND 1.23 54.3
19-Jun-19 96.0 ND ND ND 1.10 56.5
12-Sep-19 75.4 ND ND ND 0.999 52.0
.I 8-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
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-8 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I)
(J12/l) (u2/l)
11-Nov-20 51.3 ND ND ND 1.27 54.7
18-Mar-21 26.9 ND ND ND 1.00 52.8
16-Jun-21 22.3 ND ND ND 1.12 51.5
22-Sep-21 17.0 ND ND ND 0.665 40.8
8-Dec-21 17.2 ND ND ND 0.738 54.9
23-Mar-22 15.1 ND ND ND 0.8 50.8
16-Jun-22 10.9 ND ND ND 0.64 52.8
14-Sep-22 15.3 ND ND ND 0.718 52.5
15-Sep-22 16.3 ND ND ND 0.718 52.5
8-Dec-22 4.4 ND ND ND 0.654 50.8
29-Mar-23 9.1 ND ND ND 0.658 53.4
21-Jun-23 8.3 ND ND ND 0.597 55.3
14-Sep-23 7.4 ND ND ND 0.720 53.5
7-Dec-23 7.3 ND ND ND 0.620 53.7
14-Mar-24 5.9 ND ND ND 0.650 53.8
13-Jun-24 6.9 ND ND ND 0.544 54.7
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-9 (ug/1) Tetrachloride (ug/1) Chloride {mg/I) {mg/I) Juell) (ul!fl)
20-Dec-99 4.2
15-Mar-00 1.9
2-Sep-00 14.2
29-Nov-00 39.4 ND
27-Mar-01 43.6 ND
20-Jun-0l 59.0 0.15
20-Sep-0I 19.0 0.4
7-Nov-01 49.0 0.1
26-Mar-02 41.0 0.5
22-May-02 38.0 0.65
12-Sep-02 49.0 0.2
24-Nov-02 51.0 0.6
28-Mar-03 34.0 0.6
23-Jun-03 33.0 0.8
12-Sep-03 32.0 1.1
8-Nov-03 46.0 1.1
29-Mar-04 48.0 0.82
22-Jun-04 48.0 0.75
17-Sep-04 39.0 0.81
17-Nov-04 26.0 1.2
16-Mar-05 3.8 1.3
25-May-05 1.2 NA NA NA 1.3 NA
31-Aug-05 <l <1 2.9 <1 1.3 NA
1-Dec-05 <1 <l <1 <1 1.3 NA
9-Mar-06 <1 <1 2.6 <1 1.5 38
14-Jun-06 <1 <1 2.7 <1 1.5 39
20-Jul-06 <1 <1 <1 <1 0.9 41
8-Nov-06 <1 <1 <l <1 0.7 44
28-Feb-07 <1 <1 <l <1 0.6 44
27-Jun-07 21 <1 <1 <1 1.3 42
15-Aug-07 9.5 <1 <1 <1 1.8 38
10-Oct-07 8.7 <1 <1 <1 2 40
26-Mar-08 1.3 <1 <1 <1 2.1 35
25-Jun-08 1.0 <1 <l <1 2.3 35
10-Sep-08 <1 <1 <1 <1 2.79 28
15-Oct-08 <1 . <1 <l <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 <l <1 <1 2.5 30
17-Dec-09 <1 <l <1 <1 1.7 37
23-Feb-10 <1 <l <1 <1 1.7 47
9-Jun-10 <1 <l <l <1 1.5 33
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-9 (ug/1) Tetrachloride (ug/1) Chloride {mg/I) (mg/I) (uwl) (uwl)
l l-Aug-10 <l <l <l <l 1.2 40
6-Oct-l 0 <l <l <l <l 1.8 34
17-Feb-ll ND ND ND ND I.3 41
25-May-ll ND ND ND ND 3.4 38
16-Aug-l I 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
3 l-May-12 ND ND ND ND 4 23
30-Aug-12 ND ND ND ND 3.9 22
3-Oct-12 ND ND ND ND 3.8 21
7-Feb-13 ND ND ND ND 4.12 20.6
30-May-13 ND ND ND ND 4.49 21.4
5-Sep-13 ND ND ND ND 4.03 22.7
7-Nov-13 ND ND ND ND 4.87 23.6
29-Jan-14 ND ND ND ND 4.36 22
21-May-14 6.9 ND ND ND 3.44 24
14-Aug-14 46.9 ND ND ND 2.7 27
29-Oct-14 101 ND ND ND 4.27 25
12-Mar-15 53.5 ND ND ND 3.28 29.5
I I-Jun-15 35.1 ND ND ND 1.83 35.3
3-Sep-15 48.2 ND ND ND 1.44 39.5
28-Oct-l 5 68.4 ND ND ND 2.89 29.2
l 7-Mar-16 74.3 ND ND ND 2.51 33.6
8-Jun-16 76.2 ND ND ND 2.16 35.1
3-Aug-16 76.8 ND ND ND 2.11 33.6
26-Oct-16 76 ND ND ND 2.24 37.4
16-Mar-l 7 113 ND ND ND 2.18 34.5
21-Jun-l 7 113 ND ND ND 1.92 35.9
3-Aug-17 118 ND ND ND 1.90 37.0
ll-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
l 1-Sep-19 66.0 ND ND ND 0.904 35.2
l 8-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
l 1-Nov-20 47.1 ND ND ND 1.11 37.2
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-9 (ug/1) Tetrachloride (ug/1) Chloride (mg/1) (mg/1) (,uell) Juell)
18-Mar-21 39.0 ND ND ND 1.06 40.7
16-Jun-21 102.0 ND ND ND 1.00 37.4
22-Sep-21 30.0 ND ND ND 0.700 30.8
8-Dec-21 25.4 ND ND ND 0.798 36.9
23-Mar-22 16.5 ND ND ND 0.8 34.6
22-Jun-22 9.8 ND ND ND 0.62 41.7
14-Sep-22 10.8 ND ND ND 0.673 32.4
15-Sep-22 11.8 ND ND ND 0.673 32.4
8-Dec-22 6.7 ND ND ND 0.676 33.2
29-Mar-23 6.2 ND ND ND 0.765 37.1
21-Jun-23 5.0 ND ND ND 0.742 38.0
14-Sep-23 6.2 ND ND ND 0.690 36.2
7-Dec-23 3.8 ND ND ND 0.960 37.0
14-Mar-24 3.9 ND ND ND 0.777 37.4
12-Jun-24 3.6 ND ND ND 0.791 38.1
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride
TW4-10 {ug/1) Tetrachloride (ug/1) Chloride {mg/I) {mg/I)
(m!/1) (ue/1)
21-Jan-02 14
26-Mar-02 16 0.14
21-May-02 17 0.11
12-Sep-02 6 ND
24-Nov-02 14 ND
28-Mar-03 29 0.2
23-Jun-03 110 0.4
12-Sep-03 74 0.4
8-Nov-03 75 0.3
29-Mar-04 22 0.1
22-Jun-04 32 ND
l 7-Sep-04 63 0.46
l 7-Nov-04 120 0.4
16-Mar-05 140 1.6
25-May-05 62.4 NA NA NA 0.8 NA
3 l-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 <l 1.6 1 5.7 58
28-Feb-07 500 <l <1 1 7.6 62
27-Jun-07 350 <l <l 1 5.1 54
15-Aug-07 660 <l <l 1 7.3 59
10-Oct-07 470 <l <l 1 6.7 59
26-Mar-08 620 <l <1 1 7.3 55
25-Jun-08 720 <1 <1 1 9.91 58
1 0-Sep-08 680 <l <l 1 9.23 51
l 5-Oct-08 1200 <2 <2 2 10.5 61
l l-Mar-09 1100 <1 <l 1 11.6 64
24-Jun-09 1200 <1 <1 1 9.8 62
15-Sep-09 910 <l <l 1 8.1 51
22-Dec-09 300 <l <l <l 3.5 51
3-Mar-10 460 <l <l <l 5 49
10-Jun-l 0 220 <l <l <l 1.6 42
12-Aug-lO 100 <1 <l <l 0.8 38
13-Oct-10 1100 <l <l <1 11 52
23-Feb-l l 620 ND ND ND 9 62
1-Jun-11 280 ND ND ND 3.3 42
17-Aug-1 l 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
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-10 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I)
Jue:/1) (ue:/1)
12-Sep-12 130 ND ND ND 1.0 44
3-Oct-12 140 ND ND ND I.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-Oct-14 1220 ND ND ND 13.2 75.2
18-Mar-15 1210 ND ND ND 15.0 78.6
ll-Jun-15 1240 ND ND ND 11.4 75
10-Sep-l 5 1280 ND ND ND 14.0 89.5
29-Oct-15 1350 ND ND ND 13.5 79.9
22-Mar-16 1430 ND ND ND 17.3 84.1
8-Jun-16 1510 ND ND ND 14.9 89.5
4-Aug-16 1500 ND ND ND 14.9 85.3
27-Oct-16 1290 ND ND ND 14.8 84.4
21-Mar-17 1260 ND ND ND 13.0 74.6
21-Jun-l 7 1140 ND ND ND 13.0 73.1
4-Aug-17 1320 ND ND ND 13.4 77.0
11-Oct-l 7 1150 ND ND ND 12.9 70.0
21-Mar-18 1240 ND ND ND 11.1 72.7
14-Jun-18 914 ND ND ND 11.2 64.5
5-Sep-18 911 ND ND ND IO.I 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
l 8-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 l-Nov-20 903 ND ND ND 8.69 58.6
24-Mar-21 718 ND ND ND 7.20 58.1
17-Jun-21 609 ND ND ND 7.75 48.7
23-Sep-2 l 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
15-Sep-22 563 ND ND ND 5.57 52.0
16-Sep-22 564 ND ND ND 5.57 52.0
9-Dec-22 499 ND ND ND 4.76 43.4
~ofor,m_ ~bon Gfi forom 11t bane Meth ylene Niti;ate Chloride, I TIVAi-ltl 'Fe.trac)llori-de,. Cbtoride @t_g/i) (ue/1) (ug/1) (ue:/1). (mg/1) (IJng/l)
29-Mar-23 361 ND ND ND 4.20 48.6
21-Jun-23 322 ND ND ND 3.76 46.9
27-Sep-23 286 ND ND ND 3.18 44.8
13-Dec-23 450 ND ND ND 3.94 47.0
14-Mar-24 335 ND ND ND 3.75 44.6
20-Jun-24 220 ND ND ND 2.40 41.4
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-11 Tetrachloride (ug/1) (u2'1) (ug/1) Chloride (ug/1) (mg/I) (mg/I)
21-Jan-02 4700
26-Mar-02 4900 9.6
22-May-02 5200 9.07
12-Sep-02 6200 8.84
24-Nov-02 5800 9.7
28-Mar-03 5100 9.7
23-Jun-03 5700 9.4
12-Sep-03 4600 9.9
8-Nov-03 5200 9.3
29-Mar-04 5300 9.07
22-Jun-04 5700 8.74
17-Sep-04 4800 8.75
17-Nov-04 5800 9.7
16-Mar-05 4400 8.7
25-May-05 3590 NA NA NA 10.3 NA
3 l-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 <l 1.1 10.6 53
15-Aug-07 4500 1.7 <l 1.1 10.2 53
10-Oct-07 4400 1.6 <l 1.2 9.8 53
26-Mar-08 340 <1 <1 <1 7.7 63
25-Jun-08 640 <l <l <l 7.28 46
10-Sep-08 900 <l <l <l 7.93 42
15-Oct-08 1000 <2 <2 <2 9.46 47
11-Mar-09 1100 <l <l <1 7.3 49
24-Jun-09 980 <l <l <1 6.8 44
15-Sep-09 1000 <l <l <l 7 49
29-Dec-09 860 <1 <1 <1 6.6 46
3-Mar-10 820 <1 <l <I 6.8 42
10-Jun-10 820 <1 <1 <l 6.9 40
12-Aug-10 800 <1 <1 <1 6.7 43
13-Oct-10 720 <l <1 <l 6.4 49
23-Feb-l 1 1000 ND ND ND 6.5 46
I-Jun-I I 930 ND ND ND 7.3 49
17-Aug-ll 820 ND ND ND 7.1 48
16-Nov-l l 1500 ND ND ND 7.1 46
24-Jan-12 610 ND ND ND 6.8 43
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-11 Tetrachloride (ug/1) (m!ID (ug/1) Chloride (ug/1) (mg/1) (mg/1)
13-Jun-12 660 ND ND ND 6.7 52
13-Sep-12 740 ND ND ND 3 49
4-Oct-12 730 ND ND ND 7 50
13-Feb-13 867 3.23 ND ND 6.83 47.3
18-Jun-13 788 ND ND ND 7.42 49.7
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-Oct-14 803 ND ND ND 7.33 56.4
9-Mar-15 2450 1.24 ND ND 8.72 49.8
8-Jun-15 2710 ND ND ND 8.48 62.2
31-Aug-15 1120 ND 1.62 ND 9.61 73.1
19-0ct-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-Oct-16 3180 1.58 ND ND 8.92 57.2
8-Mar-l 7 3310 1.71 ND ND 8.12 49.8
13-Jun-l 7 3370 1.83 ND ND 7.92 51.4
26-Jul-l 7 3290 1.81 ND ND 7.78 51.0
11-Oct-l 7 2880 1.48 ND ND 7.79 49.7
12-Mar-18 3090 1.82 ND ND 7.89 54.0
8-Jun-18 2800 1.34 ND ND 7.51 52.6
22-Aug-18 3050 1.47 ND ND 7.15 53.3
28-Nov-18 2930 1.33 ND ND 6.85 45.4
8-Mar-19 2820 1.48 ND ND 7.50 46.8
5-Jun-19 2970 1.52 1.40 ND 8.30 45.3
4-Sep-19 2790 ND ND ND 7.15 48.8
10-Dec-19 3250 ND ND ND 7.14 49.0
19-Feb-20 2990 ND ND ND 7.07 51.9
27-May-20 2810 1.37 ND ND 7.56 48.6
4-Sep-20 3070 1.37 ND ND 7.59 46.3
28-Oct-20 2670 ND 3.86 ND 7.19 43.3
23-Feb-21 2750 ND 3.86 ND 7.21 49.5
9-Jun-21 3320 ND ND ND 8.17 37.7
24-Aug-21 2600 ND ND ND 5.78 40.2
l-Dec-21 2850 ND ND ND 7.44 48.4
9-Mar-22 2780 ND ND ND 7.4 41.5
8-Jun-22 2550 1.0 2.7 ND 5.9 44.5
30-Aug-22 3020 ND ND ND 6.90 42.4
Cblotofo r,m (;-aFb.011 (!;blorometba.ne. ~ten .. Cb.1.'o ride 'ir'W~Jllll T~traeJdo ·ae ~-(:ug/J) /~ ug/l) {mg/,l) mg/l) I•
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31-Aug-22 3021 ND ND ND 6.90 42.4
30-Nov-22 2900 ND ND ND 7.05 36.6
7-Mar-23 2430 ND ND ND 5.68 39.2
13-Jun-23 2510 ND 2.9 ND 6.70 40.9
9-Aug-23 2630 ND ND ND 6.05 45.2
29-Nov-23 4180 ND ND ND 6.69 46.7
21-Feb-24 2530 ND ND ND 7.20 41.9
29-May-24 4110 ND ND ND 6.81 45.1
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-12 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (m!/D (mun.
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
l 7-Nov-04 0 1.5
16-Mar-05 0 1.4
25-May-05 <l NA NA NA 1.6 NA
31-Aug-05 <l <l 5.8 <l 1.5 NA
l-Dec-05 <1 <1 1.9 <2 1.4 NA
9-Mar-06 <1 <1 2.6 <1 1.3 19
14-Jun-06 <1 <1 1.4 <1 1.4 16
20-Jul-06 <l <l <l <1 1.4 16
8-Nov-06 <1 <l <l <1 1.4 16
28-Feb-07 <l <1 <1 <1 1.5 16
27-Jun-07 <1 <1 <1 <1 1,5 18
15-Aug-07 <l <1 <l <1 1.4 29
10-Oct-07 <l <l <l <l 1.4 16
26-Mar-08 <1 <1 <1 <l 1.6 16
25-Jun-08 <l <1 <l <1 2.69 19
10-Sep-08 <1 <1 <1 <l 2.65 18
15-Oct-08 <l <l <l <l 2.47 22
4-Mar-09 <1 <1 <1 <1 2.4 23
24-Jun-09 <1 <1 <1 <1 3.8 22
15-Sep-09 <1 <1 <1 <1 5.1 22
16-Dec-09 <l <l <1 <l 3.6 23
23-Feb-10 <1 <l <l <l 4 22
8-Jun-10 <1 <1 <1 <1 11 29
10-Aug-10 <l <l <l <1 9 35
5-Oct-10 <l <l <l <l 8 31
15-Feb-l l ND ND ND ND 6.5 31
25-May-1 I ND ND ND ND 7 32
16-Aug-1 l ND ND ND ND 6.8 31
15-Nov-11 ND ND ND ND 8 30
17-Jan-12 ND ND ND ND 7.7 28
31-May-12 ND ND ND ND 10 34
29-Aug-12 ND ND ND ND 13 39
3-Oct-12 ND ND ND ND 13 39
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-12 (og/1) Tetrachloride {og/1) Chloride (mg/I) {mg/I)
(02/1) (02/1).
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-Oct-14 ND ND ND ND 16.1 50.2
l l-Mar-15 ND ND ND ND 19.2 50.6
10-Jun-15 ND ND ND ND 18.8 56
2-Sep-15 ND ND ND ND 16.4 60.2
21-Oct-l 5 ND ND ND ND 18 51.0
15-Mar-16 ND ND ND ND 34.8 56.2
25-May-16 ND ND ND ND 30.7 66.4
27-Jul-16 ND ND ND ND 37.7 67.5
19-Oct-16 ND ND ND ND 25.8 72.6
14-Mar-l 7 ND ND ND ND 25.9 62.6
14-Jun-17 1.25 ND ND ND 29.9 67.2
2-Aug-17 1.20 ND ND ND 25.1 65.3
10-Oct-l 7 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
1 l-Sep-19 ND ND ND ND 8.88 52.6
14-Dec-19 ND ND ND ND 8.04 58.0
l 7-Mar-20 ND ND ND ND 6.39 53.0
10-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
l 7-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 I.95 36.1
7-Dec-21 ND ND ND .ND 1.46 49.8
15-Mar-22 ND ND ND ND 8.4 25.8
15-Jun-22 ND ND ND ND 16.0 53.3
13-Sep-22 ND ND ND ND 13.80 57.9
7-Dec-22 ND ND ND ND 4.68 49.2
22-Mar-23 ND ND ND ND 2.84 35.9
15-Jun-23 ND ND ND ND 4.72 43.6
Chloroform Carbon ChJorometbane Metb Jlene Nitlai1\i Ch loride 'fW4-;Q (ug/1) ~ftoridl (-ug/1) ~ (ing{JJ (mg/1) Giuuil (u ilt)
13-Sep-23 ND ND ND ND 4.02 50.3
6-Dec-23 ND ND ND ND 7.09 32.8
13-Mar-24 ND ND ND ND 10.90 53.1
l l-Jun-24 ND ND ND ND 3.49 53.0
19-Apr-01
14-Jan-04
10-Oct-06
6-Jul-09
1-Apr-12
27-Dec-14
22-Sep-17
18-Jun-20
15-Mar-23
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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
I 7-Sep-04 ND 4.43
17-Nov-04 ND 4.70
16-Mar-05 ND 4.20
25-May-05 <l NA NA NA 4.30 NA
3 l-Aug-05 <l <l 3. I <l 4.60 NA
l-Dec-05 <l <l <l <I 4.30 NA
9-Mar-06 <l <l 1.7 <l 4.20 67.0
14-Jun-06 <l <l 1.4 <l 4.90 66.0
20-Jul-06 <I <I <I <l 4.30 65.0
8-Nov-06 <I <I <l <l 0.80 33.0
28-Feb-07 <I <l <l <I 4.00 59.0
27-Jun-07 <I <l <I <I 4.60 59.0
15-Aug-07 <1 <l <l <l 4.40 58.0
10-Oct-07 <I <I <l <I 4.10 58.0
26-Mar-08 <1 <I <I <I 3.80 54.0
25-Jun-08 <I <I <I <I 4.24 58.0
10-Sep-08 <I <I <l <l 4.26 50.0
15-Oct-08 <1 <l <l <l 4.63 58.0
4-Mar-09 <I <I <I <I 3.70 58.0
24-Jun-09 <1 <l <l <I 1.20 57.0
15-Sep-09 <I <l <I <I 4.70 63.0
16-Dec-09 <I <I <I <l 4.10 60.0
24-Feb-10 <I <l <I <I 4.30 53.0
8-Jun-10 <I <l <l <I 5.20 52.0
I0-Aug-10 <l <I <l <I 5.60 55.0
5-Oct-10 <I <I <I <l 5.80 55.0
15-Feb-I 1 ND ND ND ND 5.50 60.0
25-May-1 l ND ND ND ND 5.40 56.0
16-Aug-I 1 ND ND ND ND 5.20 60.0
15-Nov-11 ND ND ND ND 5.90 54.0
17-Jan-12 ND ND ND ND 5.50 55.0
31-May-12 ND ND ND ND 6.00 59.0
29-Aug-12 ND ND ND ND 6.20 60.0
3-Oct-12 ND ND ND ND 5.90 60.0
7-Feb-13 ND ND ND ND 6.31 59.3
29-May-13 ND ND ND ND 6.84 56
' Carbon Methylene Chloroform Chloromethane Nitrate Chloride
TW4-13 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I)
(m!/1) (u!!ll)
29-Aug-13 ND ND ND ND 7.16 63.5
6-Nov-13 ND ND ND ND 6.48 58.5
22-Jan-14 ND ND ND ND 7.09 63.1
21-May-14 ND ND ND ND 5.99 56.1
13-Aug-14 ND ND ND ND 4.80 62
23-Oct-14 ND ND ND ND 6.28 66.1
l l-Mar-15 ND ND ND ND 7.09 66.4
IO-Jun-15 ND ND ND ND 6.32 70.3
2-Sep-15 ND ND ND ND 5.70 76.5
2 l-Oct-15 ND ND ND ND 5.78 65.5
16-Mar-16 ND ND ND ND 7.97 69.4
25-May-16 ND ND ND ND 5.87 71.8
28-Jul-16 ND ND ND ND 6.14 69.3
19-Oct-16 ND ND ND ND 6.20 70.9
15-Mar-17 ND ND ND ND 6.05 66.0
15-Jun-17 ND ND ND ND 6.49 70.4
2-Aug-17 ND ND ND ND 6.15 70.5
10-Oct-l 7 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
I 7-Mar-20 ND ND ND ND 5.50 63.9
l 1-Jun-20 ND ND ND ND 5.96 62.7
I 7-Sep-20 ND ND ND ND 5.25 60.2
4-Nov-20 ND ND ND ND 4.92 60.6
I 7-Mar-21 ND ND ND ND 5.57 67.3
15-Jun-21 ND ND ND ND 2.88 57.7
15-Sep-21 ND ND ND ND 4.80 54.2
7-Dec-21 ND ND ND ND 5.06 61.0
16-Mar-22 ND ND ND ND 4.8 59.2
15-Jun-22 ND ND ND ND 4.5 62.6
13-Sep-22 ND ND ND ND 4.37 62.4
7-Dec-22 ND ND ND ND 4.87 56.9
23-Mar-23 ND ND ND ND 4.47 57.6
15-Jun-23 ND ND ND ND 4.60 63.2
13-Sep-23 ND ND ND ND 3.93 60.9
6-Dec-23 ND ND ND ND 3.78 54.0
13-Mar-24 ND ND ND ND 4.16 63.5
Chlntoform 1 @ar.hou eih.t', irome.tbane Methylene Nitrate QfQt,,jde 1W4-U '(~ 'fll~~~de {ug/l) Cbloriile (~g/l) {JQ g/i) fuel.I) <u~ln
J I-Jun-24 ND ND ND ND 4.66 63.0
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-14 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (U!!:lll
8-Nov-06 <1 <l <l <l 2.40 37.0
28-Feb-07 <1 <1 <1 <1 2.30 38.0
27-Jun-07 <1 <1 <1 <1 1.40 38.0
15-Aug-07 <1 <1 <1 <1 1.10 36.0
1 0-Oct-07 <I <I <] <I 0.80 36.0
26-Mar-08 <1 <l <I <1 0.04 57.0
25-Jun-08 <1 <1 <1 <1 1.56 35.0
10-Sep-08 <1 <1 <I <I 1.34 34.0
15-Oct-08 <l <1 <1 <1 0.76 40.0
4-Mar-09 <1 <1 <1 <1 1.60 35.0
24-Jun-09 <1 <1 <1 <1 1.40 36.0
15-Sep-09 <1 <l <l <l 1.50 38.0
16-Dec-09 <I <1 <l <1 1.40 34.0
3-Mar-10 <1 <1 <1 <1 2.50 33.0
8-Jun-10 <1 <1 <1 <1 2.90 49.0
10-Aug-10 <1 <1 <1 <1 2.80 35.0
6-Oct-10 <l <l <l <l 2.90 29.0
IS-Feb-II ND ND ND ND 1.80 25.0
16-Aug-l 1 ND ND ND ND 2.60 33.0
15-Nov-11 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-Oct-12 ND ND ND ND 4.20 37.0
7-Feb-13 ND ND ND ND 4.63 35.2
30-May-13 ND ND ND ND 4.37 38.6
29-Aug-13 ND ND ND ND 4.51 37.6
6-Nov-13 ND ND ND ND 4.81 36.5
22-Jan-14 ND ND ND ND 5.92 35.5
21-May-14 ND ND ND ND 4.87 32.5
13-Aug-14 ND ND ND ND 4.10 38.0
23-Oct-14 1.68 ND ND ND 5.22 38.9
12-Mar-15 1.71 ND ND ND 5.22 40.1
10-Jun-15 1.82 ND ND ND 3.55 41.8
3-Sep-15 ND ND ND ND 2.77 42.4
2 l-Oct-15 1.46 ND ND ND 2.45 40.6
I6-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
20-Oct-16 7.02 ND ND 1.59 2.86 45.6
l 5-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
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-14 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (m!ID
1 0-Oct-17 6.13 ND ND ND 4.73 42.5
15-Mar-l 8 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-l 8 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
l 7-Mar-20 2.98 ND ND ND 6.17 48.4
11-Jun-20 2.87 ND ND ND 6.57 47.6
l 8-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
l 5-Sep-21 ND ND ND ND 5.56 34.4
8-Dec-21 ND ND ND ND 5.70 49.0
16-Mar-22 ND ND ND ND 5.9 42.0
16-Jun-22 1.0 ND ND ND 5.3 48.4
14-Sep-22 1.1 ND ND ND 4.78 42.2
8-Dec-22 ND ND ND ND 6.20 43.5
23-Mar-23 ND ND ND ND 5.58 47.6
15-Jun-23 ND ND ND ND 6.12 50.0
13-Sep-23 ND ND ND ND 6.22 44.0
6-Dec-23 ND ND ND ND 4.94 42.1
13-Mar-24 ND ND ND ND 6.99 50.8
12-Jun-24 ND ND ND ND 6.86 47.0
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Carbon Methylene
,~
Chloroform Chloromethane Nitrate Chloride MW-26 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I} Juell) (ue/1)
12-Sep-02 3 ND
24-Nov-02 0 ND
28-Mar-03 0 0.1
23-Jun-03 7800 14.5
15-Aug-03 7400 16.8
12-Sep-03 2500 2.7
25-Sep-03 2600 2.5
29-Oct-03 3100 3.1
8-Nov-03 3000 2.8
29-Mar-04 NA NA
22-Jun-04 NA NA
I 7-Sep-04 1400 0.53
I 7-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
3 I-Aug-05 960 <5 5.4 <5 0.2 NA
I-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 <I <I 2.8 0.3 54
28-Feb-07 570 <I <I 5.5 0.5 56
27-Jun-07 300 <l <l 13 0.4 49
15-Aug-07 1400 <I <I 36 1 57
10-Oct-07 2000 <1 <1 14 0.6 57
26-Mar-08 930 <l <l 40 0.1 49
25-Jun-08 1300 <l <I 53 0.56 57
10-Sep-08 630 <l <l 24 0.24 44
15-Oct-08 1700 <1 <l 100 0.65 64
4-Mar-09 950 <1 <l 51 0.4 49
24-Jun-09 410 <1 <l 12 0.2 48
15-Sep-09 850 <1 <l 30 0.1 46
14-Dec-09 1100 <I <l 40 2.3 60
17-Feb-10 780 <1 <l 19 0.2 57
9-Jun-10 1900 <l <1 28 1.1 58
16-Aug-lO 2200 <I <I 21 0.6 49
11-Oct-10 970 <l <1 6.5 0.7 65
23-Feb-ll 450 ND ND 3.6 0.5 57
31-May-ll 1800 ND ND 1.3 0.4 88
17-Aug-l l 720 ND ND 7.2 0.9 58
5-Dec-11 1800 ND ND 2.9 2 69
Carbon Methylene r
Chloroform Chloromethane Nitrate Chloride MW-26 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I)
(m!/1) (02/1}
7-Feb-12 2400 ND ND 16 1.7 98
6-Jun-12 3000 ND ND 21 2.5 73
4-Sep-12 3100 ND ND 31 2.6 73
4-Oct-12 1200 ND ND 4 1.8 68
l l-Feb-13 2120 ND ND 9.34 2.27 81.9
5-Jun-13 4030 ND ND 52.4 2.11 77.9
3-Sep-13 2940 ND ND 33.2 1.18 60.5
29-Oct-13 1410 ND ND 4.03 1.38 72.3
27-Jan-14 1400 ND ND 13.8 0.549 59.4
19-May-14 1960 ND ND 15.4 0.928 53.4
11-Aug-14 2120 ND 8.7 26 0.7 59
21-Oct-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-Oct-15 2680 ND 1.32 8.28 0.991 62.6
9-Mar-16 2650 ND 1.32 4.66 1.45 68.3
23-May-16 2220 ND ND 4.57 1.12 66.2
25-Jul-16 3190 ND ND 7.81 1.57 66.4
12-Oct-16 2510 ND ND 4.31 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-l 7 1230 ND ND 5.26 1.56 61.4
11-Oct-l 7 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 6~.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-Oct-20 866 ND ND ND 3.62 67.4
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
l-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
Qblorofo.RD ,a,Jmg
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Methylene Nitr• e hloride MW-16 Tet:.racblorlde Clmia 1(11wl) tuetJ.~. (ug/1) (1retl), ·mg/I) mg/1)
30-Aug-22 612 ND ND ND 0.662 57.0
30-Nov-22 1040 ND ND ND 0.337 52.1
7-Mar-23 571 ND ND ND 0.694 61.0
13-Jun-23 2230 ND 2.7 ND 0.294 57.6
9-Aug-23 2610 ND 2.7 ND 0.324 62.3
29-Nov-23 836 ND 3.7 ND 1.170 55.7
21-Feb-24 542 ND ND ND 0.331 65.5
29-May-24 4160 ND ND 1.2 2.160 60.1
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride
TW4-16 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/1) (u!!/1) (u!!/1)
12-Sep-02 140 ND
24-Nov-02 200 ND
28-Mar-03 260 ND
23-Jun-03 370 ND
12-Sep-03 350 ND
8-Nov-03 400 ND
29-Mar-04 430 ND
22-Jun-04 530 ND
I 7-Sep-04 400 ND
I 7-Nov-04 350 ND
16-Mar-05 240 ND
25-May-05 212 NA NA NA <0.1 NA
31-Aug-05 85 <I 3.2 43 <0.1 NA
I-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 <l 2.4 8.9 1.9 55
20-Jul-06 5.2 <l <l 2.7 2.7 60
8-Nov-06 13.6 <l <1 9.2 5.6 62
28-Feb-07 8.7 <1 <1 6.5 12.3 79
27-Jun-07 2.6 <l <1 1.8 9.9 75
15-Aug-07 7.1 <1 <l 5.1 5.4 66
1 0-Oct-07 1.4 <l <1 <1 4.4 69
26-Mar-08 11 <1 <1 26 ND 52
25-Jun-08 <l <l <l <1 1.46 58
10-Sep-08 10 <1 <l 14 10.5 71
15-Oct-08 3.9 <I <1 6.6 9.82 89
4-Mar-09 <I <I <1 <1 9.6 78
24-Jun-09 <1 <1 <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 <I <I <1 4.2 77
9-Jun-10 2.1 <1 <1 <l 4.7 64
24-Aug-10 4.3 <l <l <1 4.6 72
6-Oct-l 0 3 <1 <1 <l 3.3 72
22-Feb-1 l 15 ND ND ND 7 86
26-May-11 16 ND ND ND 5 81
17-Aug-11 9.2 ND ND ND 1.7 63
16-Nov-l l ND ND ND 1.4 0.4 38
18-Jan-12 ND ND ND 1.7 0.1 48
31-May-12 ND ND ND ND ND 53
30-Aug-12 ND ND ND ND ND 59
3-Oct-12 ND ND ND 3 ND 53
I
Chloroform Carbon Methylene Nitrate Chloride TW4-16 Tetrachloride Chloromethane Chloride (ug/1) (u!!/1) (ug/1) (u!!/1) (mg/1) (mg/1)
7-Feb-13 ND ND ND 3 ND 58.1
30-May-13 ND ND ND 4.21 ND 49.8
5-Sep-13 ND -ND ND ND ND 54.4
7-Nov-13 13.4 ND ND ND 1.37 56.6
29-Jan-14 6.9 ND ND ND 3.16 66.8
22-May-14 14.6 ND ND ND 4.94 80.7
14-Aug-14 229 ND ND ND 5.1 80
24-Sep-14 371 ND ND ND NIA NIA
29-Oct-14 387 ND ND ND 8.40 92.1
12-Mar-15 153 ND ND ND 4.30 65.3
1 l-Jun-15 65.3 ND ND ND 1.06 61
3-Sep-15 82 ND ND ND 1.18 65.8
28-Oct-15 112 ND ND ND 1.69 58.3
l 7-Mar-16 45.9 ND ND ND 1.63 56.5
26-May-16 93.4 ND ND ND 1.89 61.3
3-Aug-16 49 ND ND ND 2.20 60
26-Oct-16 92.9 ND ND ND 2.78 66.7
8-Mar-17 19.1 ND ND ND 2.75 62.2
20-Jun-17 64.3 ND ND ND 1.81 60.6
3-Aug-17 143 ND ND ND 2.63 67.1
11-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
l 8-Dec-19 94.3 ND ND ND 3.37 88.6
18-Mar-20 113 ND ND ND 3.91 76.2
12-Jun-20 141 ND ND ND 4.44 79.7
19-Sep-20 220 ND ND ND 4.74 77.4
4-Nov-20 270 ND ND ND 5.73 85.9
24-Mar-21 248 ND ND ND 5.82 92.6
l 7-Jun-21 247 ND ND ND 6.74 87.4
23-Sep-21 202 ND ND ND 5.32 79.8
8-Dec-21 189 ND ND ND 4.85 89.9
23-Mar-22 150 ND ND ND 5.0 84.3
22-Jun-22 120 ND ND ND 4.2 93.2
15-Sep-22 138 ND ND ND 4.41 89.8
9-Dec-22 152 ND ND ND 4.75 91.0
29-Mar-23 179 ND ND ND 5.69 88.5
Cbl 'l)~Q,fQir,:m G:arbon Chloromethane M e1:hy1em Nitrafe ©b!mrl~' tw,4~ 'letrac ~ Cblori~ 'ug/,1) _(u 27l)' ,ug/1) (ue/ll (mg/I) ~g/1)
21-Jun-23 227 ND ND ND 5.02 94.2
27-Sep-23 182 ND ND ND 4.93 91.9
12-Dec-23 139 ND ND ND 4.58 88.6
14-Mar-24 116 ND ND ND 4.76 91.4
20-Jun-24 117 ND ND ND 4.63 93.8
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-32 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I)
(u2fl) (u2/l)
12-Sep-02 1.6 ND
24-Nov-02 ND ND
28-Mar-03 ND ND
23-Jun-03 ND ND
12-Sep-03 ND ND
8-Nov-03 ND ND
29-Mar-04 ND ND
22-Jun-04 ND ND
17-Sep-04 ND ND
17-Nov-04 ND ND
16-Mar-05 ND ND
30-Mar-05 ND ND
25-Mav-05 <1 NA NA NA <0.1 NA
31-Aug-05 <1 <1 3.2 <1 <0.1 NA
1-Dec-05 <1 <1 <1 <1 <0.1 NA
9-Mar-06 <1 <1 <1 <1 <0.1 32
14-Jun-06 <1 <1 3.5 <1 <0.1 30
20-Jul-06 <1 <1 1.8 <1 <0.1 32
8-Nov-06 <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 <1 <1 <1 <1 <0.1 31
10-Oct-07 <1 <1 <1 <1 <0.1 32
26-Mar-08 <1 <1 <1 <1 <0.1 31
25-Jun-08 <1 <1 <1 <1 <0.05 29
10-Sep-08 <1 <1 <1 <1 <0.05 30
15-Oct-08 <1 <1 <1 <1 <0.05 26
4-Mar-09 <1 <1 <1 <1 <0.1 30
24-Jun-09 <1 <1 <1 <1 <0.1 31
15-Sep-09 <1 <1 <1 <1 <0.1 33
16-Dec-09 <1 <1 <1 <1 <0.1 34
17-Feb-10 <1 <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-Oct-10 <1 <1 <1 <1 <0.1 24
23-Feb-11 ND ND ND ND ND 40
25-May-11 ND ND ND ND ND 31
16-Aug-l l ND ND ND ND ND 33
6-Dec-11 ND ND ND ND ND 32
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
I Carbon Methylene Chloroform Chloromethane Nitrate Chloride MW-32 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) foe/I)
10-Oct-12 ND ND ND ND ND 35
13-Feb-13 ND ND ND ND ND 34.3
l 8-Jun-13 ND ND ND ND ND 34.9
4-Sep-13 ND ND ND ND ND 33
29-Oct-13 ND ND ND ND ND 35.7
29-Jan-14 ND ND ND ND ND 34
23-May-14 ND ND ND ND ND 39.7
26-Aug-14 ND ND ND ND ND 34
29-Oct-14 ND ND ND ND ND 34.9
l 7-Mar-15 ND ND ND ND ND 36.3
ll-Jun-15 ND ND ND ND ND 35.8
9-Sep-15 ND ND ND ND ND 37.7
28-Oct-l 5 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
l 7-Aug-16 ND ND ND ND ND 37.5
31-Oct-16 ND ND ND ND ND 36.9
21-Mar-l 7 ND ND ND ND ND 33.7
2 l-Jun-17 ND ND ND ND ND 37.2
4-Aug-17 ND ND ND ND ND 38.1
12-Oct-l 7 ND ND ND ND ND 32.6
15-Mar-18 ND ND ND ND ND 39.4
14-Jun-18 ND ND ND ND ND 34.4
5-Sep-18 ND ND ND ND ND 41.2
29-Oct-18 ND ND ND ND ND 32.9
19-Mar-19 ND ND ND ND ND 35.3
18-Jun-l 9 ND ND ND ND ND 36.5
l l-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
l 7-Jun-21 ND ND ND ND ND 35.8
23-Sep-21 ND ND ND ND ND 34.3
9-Dec-21 ND ND ND ND ND 35.8
22-Mar-22 ND ND ND ND ND 28.6
16-May-22 ND ND ND ND ND 26.9
15-Sep-22 ND ND ND ND ND 37.2
8-Dec-22 ND ND ND ND ND 35.1
30-Mar-23 ND ND ND ND ND 36.8
bi lot.ofoJ ~ttl Carbon e hloi'o:m'd·ruut · Methyl~ot Nifr.ate ·Qloride MW-32 (ug(l) •tlPchloli'"de (u~ Chloride (mg/I) tmgft) (ue/i)' (02'1)
14-Jun-23 ND ND ND ND ND 36.8
26-Seo-23 ND ND ND ND ND 37.5
12-Dec-23 ND ND ND ND ND 37.6
14-Mar-24 ND ND ND ND ND 37.2
19-Jun-24 ND ND ND ND ND 38.2
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' .(u~/1)_ Jue/ll
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
l 7-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 <I 2.8 <1 13.3 NA
1-Dec-05 14 <1 1.1 <1 7.3 NA
9-Mar-06 12.0 <l 1.1 <1 5.9 5.9
14-Jun-06 12.0 <I 1.6 <1 4.7 35
20-Jul-06 10.8 <1 2.7 <I 6.1 35
8-Nov-06 139 <1 <I <1 8.7 34
28-Feb-07 9.2 <1 <I <1 5.1 30
27-Jun-07 8.0 <1 <1 <1 4.9 28
15-Aug-07 8.9 <I <I <1 5 32
1 O-Oct-07 7.4 <1 <1 <1 4.4 27
26-Mar-08 6.4 <I <l <1 0.7 23
25-Jun-08 5.7 <I <I <1 4.55 23
I0-Sep-08 8.0 <I <1 <1 4.68 26
15-Oct-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 <I <1 <1 6.2 30
15-Sep-09 13.0 <1 <1 <I 5.9 26
22-Dec-09 8.2 <1 <I <I 5.4 30
24-Feb-10 69.0 <1 <1 <l 5.1 41
9-Jun-10 29.0 <1 <I <I 9 35
12-Aug-10 29.0 <1 <I <l 9 37
13-Oct-10 30.0 <1 <1 <1 10 50
22-Feb-11 39.0 ND ND ND 10 52
26-May-l 1 26.0 ND ND ND 9 36
17-Aug-l l 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
13-Jun-12 24.0 ND ND ND 6.6 30
11-Sep-12 38.0 ND ND ND 6.6 26
3-Oct-12 30.0 ND ND ND 6 27
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-18 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2'1) (:ue/1)
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-Oct-14 33.0 ND ND ND 11.1 40.8
12-Mar-15 32.0 ND ND ND 11.7 41.6
11-Jun-15 30.5 ND ND ND 9.69 43.5
3-Sep-15 28.7 ND ND ND 15.7 47.6
28-Oct-15 52.9 ND ND ND 6.24 39.4
l 7-Mar-16 56.6 ND ND ND 5.96 40.7
8-Jun-16 60.0 ND ND ND 5.43 43.8
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-l 7 63.8 ND ND ND 4.5 41.6
3-Aug-17 62.8 ND ND ND 4.24 40.4
10-Oct-17 62.9 ND ND ND 4.43 37.1
15-Mar-18 62.3 ND ND ND 4.32 44.3
13-Jun-18 59.9 ND ND ND 4.09 39.5
30-Aug-18 56.2 ND ND ND 3.51 45.6
13-Dec-18 57.6 ND ND ND 3.60 38.2
19-Mar-19 52.8 ND ND ND 3.85 37.6
19-Jun-19 54.2 ND ND ND 4.01 39.5
11-Sep-19 56.2 ND ND ND 3.25 36.8
18-Dec-19 62.0 ND ND ND 3.02 42.7
18-Mar-20 57.0 ND ND ND 3.71 39.4
12-Jun-20 58.2 ND ND ND 3.62 41.4
18-Sep-20 60.0 ND ND ND 3.36 38.7
ll-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
23-Mar-22 56.0 ND ND ND 3.4 39.1
22-Jun-22 62.9 ND ND ND 3.4 48.1
14-Sep-22 60.6 ND ND ND 3.46 44.7
9-Dec-22 62.6 ND ND ND 3.60 44.4
29-Mar-23 54.4 ND ND ND 3.40 45.6
21-Jun-23 54.6 ND ND ND 3.40 47.1
~ Carbon €hlorometlUM.e Me(bylen:e Nitrate Gloride ~ ' fetrachl odte, Chi}j ', i'tib
~) {ueil)' q@l:ID fuf!/1:) (~gll) (m •
14-Sep-23 55.5 ND ND ND 3.84 45.8
12-Dec-23 53.9 ND ND ND 3.49 46.1
14-Mar-24 49.6 ND ND ND 3.90 45.2
13-Jun-24 49.3 ND ND ND 4.06 46.5
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-19 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) {uf!/1) (u2'1)
12-Sep-02 7700 47.6
24-Nov-02 5400 42
28-Mar-03 4200 61.4
15-May-03 4700 NA
23-Jun-03 4500 11.4
15-Jul-03 2400 6.8
15-Aug-03 2600 4
12-Sep-03 2500 5.7
25-Sep-03 4600 9.2
29-Oct-03 4600 7.7
9-Nov-03 2600 4.8
29-Mar-04 NA NA
22-Jun-04 NA NA
16-Aug-04 7100 9.91
I 7-Sep-04 2600 4.5
I 7-Nov-04 1800 3.6
16-Mar-05 2200 5.3
25-May-05 1200 5.7
3 I-Aug-05 1400 <5 <5 <5 4.6 NA
I-Dec-05 2800 <50 <50 <50 <0.1 NA
9-Mar-06 1200 <50 <50 <50 4 86
I4-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 <I 4.6 134
28-Feb-07 1200 1.3 <I <I 4 133
27-Jun-07 1800 2.3
15-Aug-07 1100 1.9 <I <I 4.1 129
I 0-Oct-07 1100 1.9 <I <I 4 132
26-Mar-08 1800 2.9 <I <I 2.2 131
25-Jun-08 1000 1 <I <I 2.81 128
10-Sep-08 3600 8.6 <I <I 36.2 113
l 5-Oct-08 4200 12 <l <l 47.8 124
4-Mar-09 1100 1.2 <I <l 3.2 127
24-Jun-09 990 1.2 <I <1 2.4 132
15-Sep-09 6600 15 <I <I 0.1 43
14-Dec-09 4700 16 <I <I 26.7 124
17-Feb-l0 940 1.3 <I <1 2 144
9-Jun-10 1800 4.2 <I <I 4.4 132
16-Aug-10 2000 4.9 <l <l 5.9 142
11-Oct-10 1200 1.3 <I <1 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
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-19 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u!!ll) (u!!ll)
5-Dec-I 1 2200 5.4 ND ND 5 148
23-Jan-12 650 l.5 ND ND 0.6 138
6-Jun-12 460 I.I ND ND 2.4 149
5-Sep-12 950 3.5 ND ND 2.5 149
3-Oct-12 1500 4 ND ND 4.1 150
I 1-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-Oct-13 942 6.42 ND ND 4.7 134
27-Jan-14 586 . 4.05 ND ND I.62 134
19-May-14 810 5.51 ND ND I.34 152
11-Aug-14 1410 I.9 8.3 ND I.6 140
2 I-Oct-14 4310 4.8 ND ND 4.72 130
9-Mar-15 4660 8.92 ND ND 8.56 238
8-Jun-15 1570 2.62 ND ND 0.916 180
4-Sep-15 7860 7.78 ND ND 11.6 326
19-Oct-15 7840 12.2 5.46 ND 10.6 252
9-Mar-16 7780 13.5 1.40 ND 15.7 276
23-May-16 12600 23.1 ND ND I.27 204
25-Jul-16 6040 9.89 ND ND 10.5 214
25-Jul-16 6040 9.89 ND ND 10.5 214
13-Oct-16 6640 10.8 ND ND 10.0 200
8-Mar-17 1240 3.06 ND ND 11.1 461
13-Jun-17 510 I.35 ND ND 0.243 135
26-Jul-17 8840 13.0 ND ND 1.12 218
11-Oct-17 129 ND ND ND 0.377 139
12-Mar-18 2640 I.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
I0-Dec-19 551 ND ND ND 0.535 147
19-Feb-20 8720 13.7 5.41 ND I 0.1 205
27-May-20 7600 10.4 ND ND I. 14 147
4-Sep-20 1350 I.98 ND ND 11.6 188
28-Oct-20 660 I.10 ND ND I.IO 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 I.25 6.68 172
1-Dec-21 6950 13.20 ND ND 11.0 184
9-Mar-22 654 ND ND ND I.7 119
~roform ·~b1.1n {;hlorometli~ne Methylene Nit• Cliilo n d!ti TW4-11 'Xttt r:rchloride ~ ·ugflg ' ~mg/I) (mg/l) (ncrll'I (og!I • lutdll
8-Jun-22 2540 2.7 4.0 ND 1.4 128
30-Aug-22 4750 2.5 ND ND 4.76 178
30-Nov-22 7380 8.0 ND ND 3.58 129
7-Mar-23 230 ND ND ND 1.75 122
13-Jun-23 4850 3.1 3.4 ND 6.68 167
9-Aug-23 198 ND ND ND 1.57 122
29-Nov-23 1660 I.I 2.7 1.1 1.14 120
21-Feb-24 126 ND ND ND 0.98 126
29-May-24 1030 1.1 ND ND 0.83 135
1-Sep-01
1-Sep-03
1-Sep-05
1-Sep-07
1-Sep-09
1-Sep-11
1-Sep-13
1-Sep-15
1-Sep-17
1-Sep-19
1-Sep-21
1-Sep-23
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-21 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) Ju!!/1) (u!!/1)
25-May-05 192 NA NA NA 14.6 NA
31-Aug-05 78 <5 <5 <5 10.1 NA
l-Dec-05 86 <l 1.0 <l 9.6 NA
9-Mar-06 120 <2.5 <2.5 <2.5 8.5 347
14-Jun-06 130 <2.5 <2.5 <2.5 10.2 318
20-Jul-06 106 <2.5 <2.5 <2.5 8.9 357
8-Nov-06 139 2 <l <l 8.7 296
28-Feb-07 160 1.8 <l <1 8.7 306
27-Jun-07 300 5.8 <l <I 8.6 327
15-Aug-07 140 <I <l <l 8.6 300
10-Oct-07 120 <1 <1 <l 8.3 288
26-Mar-08 380 7 <l <l 14.3 331
25-Jun-08 160 1.7 <1 <l 8.81 271
10-Sep-08 120 1.6 <l <l 7.57 244
15-Oct-08 170 2 <1 <2 8.00 284
ll-Mar-09 180 <l <l <l 8.3 279
24-Jun-09 200 <l <l <l 8.1 291
l 5-Sep-09 140 <l <1 <1 9.2 281
22-Dec-09 160 <1 <1 <1 8.4 256
25-Feb-10 170 <1 <1 <1 8.4 228
10-Jun-IO 210 1.2 <l <l 12 266
12-Aug-10 390 9.2 <1 <1 14 278
13-Oct-10 200 1.2 <1 <l 7 210
22-Feb-1 l 230 1.2 ND ND 9 303
28-Jun-l l 290 4.8 ND ND 12 290
17-Aug-l l 460 6.3 ND ND 14 287
7-Dec-11 390 6.7 ND ND 13 276
f9-Jan-12 420 6.4 ND ND 15 228
13-Jun-12 400 5.4 ND ND 11 285
13-Sep-12 410 6 ND ND 13 142
4-Oct-12 390 7 ND ND 14 270
13-Jan-13 282 5.25 ND ND 11.8 221
18-Jun-13 328 3.49 ND ND 13.8 243
12-Sep-13 244 2.13 ND ND 10.3 207
13-Nov-13 204 ND ND ND 9 206
5-Feb-14 220 6.23 ND ND 11.4 200
22-May-14 240 4.73 ND ND 11.5 243
27-Aug-14 204 ND ND ND 7.1 230
29-Oct-14 229 1.04 ND ND 10 252
12-Mar-15 292 1.75 ND ND 10.9 255
8-Jun-15 366 1.92 ND ND 13.I 494
31-Aug-15 281 ND ND ND 14.7 499
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-21 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (.ue/1) (ue/1)
19-Oct-15 339 ND ND ND 14.3 413
9-Mar-16 390 ND ND ND 14.6 452
23-May-16 545 ND ND ND 13.1 425
25-Jul-16 456 ND ND ND 16.5 457
12-Oct-16 434 ND ND ND 11.4 301
12-Oct-16 434 ND ND ND 11.4 301
8-Mar-17 598 2.36 ND ND 12.0 290
13-Jun-17 224 1.16 ND ND 9.53 309
26-Jul-17 537 1.05 ND ND 18.2 447
11-Oct-17 466 ND ND ND 16.9 378
12-Mar-18 421 ND ND ND 15.8 447
8-Jun-18 532 ND ND ND 14.1 387
22-Aug-18 476 ND ND ND 0.236 182
22-Oct-18 585 ND ND ND 15.2 392
8-Mar-19 323 ND ND ND 8.99 180
5-Jun-19 734 ND ND ND 17.5 456
4-Sep-19 596 ND ND ND 14.7 478
10-Dec-19 794 ND ND ND 5.73 339
19-Feb-20 844 ND 2.58 ND 8.93 446
27-May-20 767 ND ND ND 15.4 353
4-Sep-20 920 ND ND ND 12.6 382
28-Oct-20 948 ND ND ND 16.3 411
23-Feb-21 400 ND ND ND 15.2 454
9-Jun-21 1130 ND ND ND 21.5 461
24-Aug-21 669 ND ND ND 12.9 375
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
30-Aug-22 1070 ND ND ND 14.3 425
30-Nov-22 482 ND ND ND 2.12 158
7-Mar-23 526 ND ND ND 10.9 335
13-Jun-23 768 ND 1.4 ND 17.3 397
9-Aug-23 49.7 ND 1.4 ND 6.1 161
29-Nov-23 1630 ND 3.2 1.9 9.4 372
21-Feb-24 523 ND ND ND 3.8 129
29-May-24 1210 ND ND ND 32.2 478
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-22 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I)
I (u!!ln fu~/l)
25-May-05 340 NA NA NA 18.2 NA
31-Aug-05 290 <5 <5 <5 15.7 NA
l-Dec-05 320 <5 <5 <5 15.1 NA
9-Mar-06 390 <10 <10 <10 15.3 236
14-Jun-06 280 <10 <10 <10 14.3 221
20-Jul-06 864 <10 <10 <10 14.5 221
8-Nov-06 350 <1 1.6 <1 15.9 236
28-Feb-07 440 <l <l <1 20.9 347
27-Jun-07 740 <l <l <1 19.3 273
15-Aug-07 530 <1 <1 <1 19.3 259
1 0-Oct-07 440 <1 <1 <1 18.8 238
26-Mar-08 1400 <1 <1 <1 39.1 519
25-Jun-08 1200 <l <l <l 41.9 271
10-Sep-08 6300 1.3 <1 <1 38.7 524
15-Oct-08 630 <2 <2 <2 36.3 539
11-Mar-09 390 <1 <1 <1 20.7 177
24-Jun-09 730 <l <1 <l 20.6 177
15-Sep-09 2300 <l <l <1 40.3 391
29-Dec-09 380 <1 <1 <1 17.8 175
3-Mar-10 2200 <1 <l <1 36.6 427
15-Jun-10 540 <1 <1 <1 19 134
24-Aug-10 340 <l <l <1 15 130
13-Oct-10 340 <l <1 <1 16 134
23-Feb-1 l noo ND ND ND 18 114
l-Jun-11 210 ND ND ND 17 138
l 7-Aug-11 450 ND ND ND 15 120
7-Dec-11 400 ND ND ND 19 174
19-Jan-12 200 ND ND ND 14 36
13-Jun-12 120 ND ND ND 12.8 35
12-Sep-12 940 ND ND ND 7 121
4-Oct-12 330 ND ND ND 14 130
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-Oct-13 13300 8.09 ND ND 45.2 501
27-Jan-14 12100 6.06 ND 2.83 54.6 598
19-May-14 12400 6.65 ND ND 47.2 614
11-Aug-14 12400 1.9 40 ND 41.5 540
21-Oct-14 12400 3.32 1.61 ND 54.9 596
9-Mar-15 12700 3.77 4.31 ND 69.2 675
8-Jun-15 8050 2.42 3.42 ND 47.1 390
3 l-Aug-15 7810 ND 5.47 ND 64.7 557
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-22 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/1) (m!ID (m!ID
l 9-Oct-15 7530 ND 5.1 ND 56.1 567
9-Mar-16 6070 ND ND ND 31. I 583
23-May-16 8570 "2.64 ND ND 58.4 598
25-Jul-16 5840 ND ND ND 61.3 619
12-Oct-16 3370 1.08 ND ND 61.5 588
8-Mar-17 5320 1.56 ND ND 69.8 566
13-Jun-l 7 3670 1.21 ND ND 70.8 572
26-Jul-l 7 5150 ND ND ND 66.1 391
l 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-Oct-20 3640 ND 6.83 ND 64.9 523
23-Feb-21 5100 ND ND ND 69.6 618
9-Jun-21 4520 ND ND ND 89.3 408
24-Aug-21 3510 ND ND ND 35.l 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
30-Aug-22 3190 ND ND ND 69.9 637
30-Nov-22 2350 ND ND 1.6 62.0 601
7-Mar-23 1900 ND ND 1.3 49.1 562
13-Jun-23 2180 ND 3.3 2.1 49.8 596
9-Aug-23 1890 ND ND 1.9 58.8 617
29-Nov-23 3460 ND 6.7 1.3 42.9 577
21-Feb-24 2180 ND ND 1 53.9 489
29-May-24 3670 ND ND ND 55.3 510
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-23 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I)
(u2/l) (u211)
27-Jun-07 <l <I <1 <l <0.1 47
15-Aug-07 <I <I <1 <I <0.1 46
1 0-Oct-07 <I <I <I <I <0.1 43
26-Mar-08 <I <I <I <l <0 .1 41
25-Jun-08 <I <l <l <1 <0.05 41
10-Sep-08 <l <l <l <I <0.05 35
15-Oct-08 <2 <2 <2 <2 <0.05 51
4-Mar-09 <I <1 <1 <l <0.1 41
24-Jun-09 <l <I <I <I <0.1 43
l 5-Sep-09 <1 <I <I <l <0.1 43
16-Dec-09 <1 <1 <I <l <0.1 37
24-Feb-10 <1 <l <I <1 <0.1 45
8-Jun-10 <1 <l <l <1 <0.1 40
IO-Aug-IO <l <1 <l <1 <0.1 40
5-Oct-10 <1 <1 <l <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
l 7-Jan-12 ND ND ND ND ND 40
31-May-12 ND ND ND ND ND 44
29-Aug-12 ND ND ND ND ND 46
3-Oct-12 ND ND ND ND ND 45
7-Feb-13 ND ND ND ND ND 43.6
30-May-13 ND ND ND ND 0.116 44.7
5-Sep-13 ND ND ND ND ND 48.0
7-Nov-13 ND ND ND ND ND 43.0
23-Jan-14 ND ND ND ND ND 44.6
21-May-14 ND ND ND ND ND 42.3
13-Aug-14 ND ND ND ND ND 46 .0
28-Oct-14 ND ND ND ND ND 46.8
12-Mar-15 ND ND ND ND ND 47 .3
10-Jun-15 ND ND ND ND ND 48.4
3-Sep-15 ND ND ND ND ND 54.1
28-Oct-15 ND ND ND ND ND 46.4
16-Mar-16 ND ND ND ND ND 49.1
26-May-16 ND ND ND ND ND 50.4
3-Aug-16 ND ND ND ND ND 49.6
20-Oct-16 ND ND ND ND ND 52.1
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
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-23 (ug/1) Tetrachloride (ug/1) Chloride (mg/1) {mg/1)
(.u.211) (ue/1)
I0-Oct-17 ND ND ND ND ND 44.7
14-Mar-18 ND ND ND ND ND 53.8
13-Jun-18 ND ND ND ND ND 47.6
30-Aug-18 ND ND ND ND ND 56.0
12-Dec-18 ND ND ND ND ND 54.9
16-Mar-19 ND ND ND ND ND 48.9
13-Jun-19 ND ND ND ND ND 50.2
l l-Sep-19 ND ND ND ND ND 47.9
14-Dec-19 ND ND ND ND ND 54.4
l 7-Mar-20 ND ND ND ND ND 50.0
l l-Jun-20 ND ND ND ND ND 49.0
l 7-Sep-20 ND ND ND ND ND 48.8
4-Nov-20 ND ND ND ND ND 49.3
l 7-Mar-21 ND ND ND ND ND 51.6
16-Jun-21 ND ND ND ND ND 48.8
15-Sep-2 l ND ND ND ND ND 42.8
8-Dec-21 ND ND ND ND ND 51.2
22-Mar-22 ND ND ND ND ND 43.8
16-Jun-22 ND ND ND ND 0.10 49.2
14-Sep-22 ND ND ND ND ND 45.0
7-Dec-22 ND ND ND ND ND 47.5
29-Mar-23 ND ND ND ND ND 50.2
20-Jun-23 ND ND ND ND ND 51.3
13-Sep-23 ND ND ND ND ND 42.3
7-Dec-23 ND ND ND ND ND 48.3
13-Mar-24 ND ND ND ND ND 50.5
12-Jun-24 ND ND ND ND ND 51.2
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-24 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (uefl)_
27-Jun-07 2.6 <l <l <l 26.1 770
15-Aug-07 2.2 <1 <l <l 29 791
10-Oct-07 1.5 <l <l <l 24.7 692
26-Mar-08 1.5 <l <l <l 24.4 740
25-Jun-08 1.4 <l <l <l 45.3 834
10-Sep-08 2.9 <l <l <l 38.4 1180
l 5-Oct-08 <2 <2 <2 <2 44.6 1130
4-Mar-09 1.4 <1 <1 <l 30.5 1010
24-Jun-09 1.5 <l <l <l 30.4 759
15-Sep-09 1.4 <l <1 <l 30.7 618
l 7-Dec-09 1.2 <l <l <l 28.3 1080
25-Feb-10 1.3 <l <l <1 33.1 896
9-Jun-10 1.7 <1 <1 <1 30 639
24-Aug-10 1.8 <1 <1 <1 31 587
6-Oct-10 1.4 <l <l <l 31 522
17-Feb-ll 1.8 ND ND ND 31 1100
26-May-ll 1.1 ND ND ND 35 1110
17-Aug-11 1.7 ND ND ND 34 967
7-Dec-11 1.2 ND ND ND 35 608
18-Jan-12 ND ND ND ND 37 373
6-Jun-12 ND ND ND ND 37 355
30-Aug-12 1.1 ND ND ND 37 489
3-Oct-12 1.0 ND ND ND 38 405
l 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-Oct-13 32.5 ND ND ND 34.6 1030
27-Jan-14 78.5 ND ND 1.18 31.6 809
19-May-14 62.7 ND ND ND 35 1020
l l-Aug-14 76.3 ND ND ND 31.5 1150
21-Oct-14 25.8 ND ND ND 35.7 1050
9-Mar-15 49.2 ND ND ND 34.6 944
8-Jun-15 4.3 ND ND ND 31.8 1290
31-Aug-15 46.9 ND ND ND 25.3 788
19-Oct-15 25.3 ND ND ND 29.6 909
9-Mar-16 22.8 ND ND ND 29.1 989
23-May-16 69.6 ND ND ND 24.2 771
25-Jul-16 17.8 ND ND ND 34.4 1180
12-Oct-16 20.8 ND ND ND 31.9 1010
8-Mar-17 I 8.3 ND ND ND 41.3 1090
13-Jun-l 7 17.2 ND ND ND 39.9 1080
26-Jul-l 7 17.8 ND ND ND 40.0 1230
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-24 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) .(mun. [uwJ.)_
l l-Oct-17 16.0 ND ND ND 31.7 895
12-Mar-18 24.9 ND ND ND 44.9 1320
14-Jun-18 49.2 ND ND ND 33.6 792
22-Aug-18 35.0 ND ND ND 33.8 996
28-Nov-18 21.0 ND ND ND 38.4 1100
8-Mar-19 28.1 ND ND ND 39.3 1040
5-Jun-19 28.8 ND ND ND 33.2 1020
4-Sep-19 31.1 ND ND ND 36.4 1130
10-Dec-19 43.3 ND ND ND 33.8 1090
19-Feb-20 61.7 ND ND ND 37.1 1010
27-May-20 49.4 ND ND ND 41.7 1060
4-Sep-20 63.8 ND ND ND 39.1 1100
28-Oct-20 72.6 ND ND ND 35.9 1050
23-Feb-21 96.2 ND 3.6 ND 41.9 1170
9-Jun-21 41.2 ND ND ND 48.0 938
24-Aug-21 103 ND ND ND 26.7 1010
l-Dec-21 112 ND ND ND 43.6 1140
9-Mar-22 114 ND ND ND 36.2 890
8-Jun-22 124 ND ND ND 35 944
30-Aug-22 88.9 ND ND ND 32.0 868
30-Nov-22 79.5 ND ND ND 27.6 972
7-Mar-23 99.5 ND ND ND 36.2 932
13-Jun-23 58.5 ND ND ND 35.9 866
9-Aug-23 65.7 ND ND ND 26.2 928
29-Nov-23 168.0 ND 1.7 1.1 16.9 757
21-Feb-24 87.6 ND ND ND 40.6 1130
29-May-24 66.2 ND ND ND 33.7 891
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-25 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (ue/1)
27-Jun-07 <I <I <I <I 17.1 395
15-Aug-07 <l <I <1 <l 16.7 382
10-Oct-07 <I <I <1 <1 17 356
26-Mar-08 <I <I <I <I 18.7 374
25-Jun-08 <I <I <I <I 22.1 344
I0-Sep-08 <I <I <I <I 18.8 333
15-Oct-08 <2 <2 <2 <2 21.3 366
4-Mar-09 <I <I <I <I 15.3 332
24-Jun-09 <I <I <I <1 15.3 328
15-Sep-09 <I <I <I <I 3.3 328
16-Dec-09 <I <I <I <I 14.2 371
23-Feb-10 <1 <I <I <I 14.4 296
8-Jun-10 <I <I <I <1 16 306
I0-Aug-10 <1 <I <I <I 14 250
5-Oct-10 <I <1 <I <1 15 312
16-Feb-I 1 ND ND ND ND 15 315
25-May-l 1 ND ND ND ND 16 321
16-Aug-l 1 ND ND ND ND 16 276
15-Nov-l I ND ND ND ND 16 294
18-Jan-12 ND ND ND ND 16 304
3 I-May-12 ND ND ND ND 16 287
11-Sep-12 ND ND ND ND 17 334
3-Oct-12 ND ND ND ND 17 338
I I-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-Oct-13 ND ND ND ND 6.1 88.6
27-Jan-14 ND ND ND ND 2.16 85.7
19-May-14 ND ND ND ND 1.21 51.1
11-Aug-14 ND ND ND ND 1.6 67
21-Oct-14 ND ND ND ND 1.03 58.1
9-Mar-15 ND ND ND ND 14.4 310
8-Jun-15 ND ND ND ND 1.14 58.3
3 l-Aug-15 ND ND ND ND 1.63 69.2
21-Oct-15 ND ND ND ND 1.78 93.7
9-Mar-16 ND ND ND ND 0.837 62.7
23-May-16 ND ND ND ND 0.959 75.5
25-Jul-16 ND ND ND ND 1.78 74.1
12-Oct-16 ND ND ND ND 1.24 59.8
8-Mar-17 1.15 ND ND ND 17 285
13-Jun-17 ND ND ND ND 0.976 69.8
26-Jul-17 ND ND ND ND 1.23 70.1
Chloroform Carbon Chloromethane Methylene Nitrate Chloride
TW4-25 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (ue/l)
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.I
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
1 0-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-Oct-20 ND ND ND ND 1.64 61.3
23-Feb-21 ND ND ND ND 3.43 100
9-Jun-21 ND ND ND ND 1.57 55.1
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
30-Aug-22 ND ND ND ND 1.51 82.5
30-Nov-22 ND ND ND ND 1.47 67.2
7-Mar-23 ND ND ND ND 1.96 96.7
13-Jun-23 ND ND ND ND 1.03 73.0
9-Aug-23 ND ND ND ND 0.790 79.9
29-Nov-23 ND ND ND ND 0.480 70.4
21-Feb-24 ND ND ND ND 0.581 74.3
29-May-24 ND ND ND ND 1.120 77.2
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-26 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ut?ll) (ue:/1)
15-Jun-10 13 <1 <l <1 7.9 33
11-Aug-10 5 <1 <1 <1 9 17
6-Oct-10 5.4 <1 <l <l 9.6 22
22-Feb-l l 2 .0 ND ND ND 10 30
26-May-11 2.9 ND ND ND IO 15
17-Aug-11 2 .8 ND ND ND 11 19
7-Dec-11 5.2 ND ND ND 10 26
18-Jan-12 7.0 ND ND ND 11 17
6-Jun-12 4 .1 ND ND ND 12 19
l l-Sep-12 4.9 ND ND ND 9 19
3-Oct-12 6.0 ND ND ND 12 19
7-Feb-13 5.0 ND ND ND 12.5 16.6
13-Jun-13 2 .1 ND ND ND 13.6 14.5
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
11-Aug-14 1.3 ND ND ND 10.8 15
28-Oct-14 2.45 ND ND ND 12.3 14.6
12-Mar-15 2 .37 ND ND ND 14.4 14.4
10-Jun-15 6.12 ND 1.17 ND 11.3 14.4
3-Sep-15 4 .77 ND ND ND 14.2 14.0
28-Oct-l 5 3.45 ND ND ND 13 .9 13 .3
16-Mar-16 1.80 ND ND ND 16.9 13.7
26-May-16 8.23 ND ND ND 15.2 13.9
3-Aug-16 4.42 ND ND ND 17.9 13.9
20-Oct-16 19.9 ND ND ND 15.0 14.2
16-Mar-l 7 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
11-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-l 8 1050 ND ND ND 11.8 33.4
20-Mar-19 963 ND ND ND 12.2 32.9
l 9-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 I 1.1 35 .1
19-Sep-20 1120 ND ND ND 10.5 34 .8
11-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
Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-26 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I)
I (u2/l) (ue/1)
23-Sep-21 927 ND ND ND 12.1 36.5
9-Dec-21 993 ND ND ND 8.15 34.9
24-Mar-22 952 ND 2.4 ND 10.9 33.0
22-Jun-22 790 ND 2.4 ND 9.9 34.0
15-Sep-22 930 ND ND ND 10.3 36.7
9-Dec-22 890 ND ND ND 10.4 32.7
29-Mar-23 703 ND ND ND 10.5 34.5
21-Jun-23 659 ND ND ND 10.0 33.5
27-Sep-23 709 ND ND ND 10.2 34.0
13-Dec-23 776 ND ND ND 10.3 33".9
15-Mar-24 594 ND ND ·ND 10.2 32.9
20-Jun-24 604 ND ND ND 10.5 31.5
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May-23
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-27 Tetrachloride (ug/1) (u2'1) (ug/1) Chloride (ug/1) (mg/I) (mg/I)
24-Jan-12 9 ND ND ND 24 11
13-Jun-12 ND ND ND ND 41 17
30-Aug-12 ND ND ND ND 37 21
3-Oct-12 ND ND ND ND 36 18
7-Feb-13 ND ND ND ND 31.2 18.8
30-May-13 ND ND ND ND 29.4 20.3
29-Aug-13 ND ND ND ND 27.2 19
6-Nov-13 ND ND ND ND 29.8 21.8
23-Jan-14 ND ND ND ND 31.3 21.8
21-May-14 ND ND ND ND 31.1 20.6
13-Aug-14 ND ND ND ND 27.0 23
23-Oct-14 ND ND ND ND 28.2 24.4
11-Mar-15 ND ND ND ND 26.5 26.2
I 0-Jun-15 ND ND ND ND 24.0 26.8
2-Sep-15 1.30 ND ND ND 20.9 26.8
28-Oct-15 1.60 ND ND ND 23.5 26.2
16-Mar-16 2.11 ND ND ND 25.0 28.0
26-May-16 3.16 ND ND ND 21.2 28.7
3-Aug-16 2.78 ND ND ND 21.8 27.1
20-Oct-16 3.80 ND ND ND 19.3 29.4
15-Mar-17 4.33 ND ND ND 22.2 28.3
15-Jun-l 7 5.65 ND ND ND 23.8 27.9
2-Aug-17 6.05 ND ND ND 20.0 29.5
1 0-Oct-17 5.91 ND ND ND 21.5 26.3
14-Mar-18 6.95 ND ND ND 19.5 30.3
13-Jun-18 5.95 ND ND ND 22.0 28.3
30-Aug-18 7.32 ND ND ND 18.1 31.4
12-Dec-18 7.70 ND ND ND 20.8 28.2
16-Mar-19 6.54 ND ND ND 21.5 26.2
13-Jun-19 8.24 ND ND ND 22.3 28.6
11-Sep-19 7.58 ND ND ND 21.2 25.3
14-Dec-19 7.97 ND ND ND 22.0 27.4
I 7-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
I 5-Sep-21 3.81 ND ND ND 21.1 21.7
8-Dec-21 4.08 ND ND ND 24.9 26.4
23-Mar-22 3.3 ND ND ND 21.3 22.7
16-Jun-22 3.1 ND ND ND 20 22.3
14-Sep-22 4.3 ND ND ND 16.9 -23_2
8-Dec-22 2.3 ND ND ND 18.1 16.2
29-Mar-23 .2.0 ND ND ND 20.9 22.8
-JJ!ln~@f();Jf,lfli Carbon rt;bio:rome 'b -3!ill !\le~~ Nitrate ·Dd0;rid:.e TW4-i27 Tetraclilo.nde (u ~ ,(u2tl) (11.1,i!IJ CMorit& {ug/1) (mgtl) (mg/I)
21-Jun-23 2.5 ND ND ND 16.9 25.7
14-Sep-23 2.9 ND ND ND 15.8 26.3
7-Dec-23 2.8 ND ND ND 12.1 26.8
13-Mar-24 2.8 ND ND ND 15.1 26.6
12-Jun-24 3.0 ND ND ND 15.7 27.4
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-28 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) fu!!/1) (02/1)
19-Jun-13 ND ND ND ND 14.9 44.6
29-Aug-13 ND ND ND ND 17.3 45.3
6-Nov-13 ND ND ND ND 16.2 45.2
22-Jan-14 ND ND ND ND 16.9 47.8
21-May-14 ND ND ND ND 16.5 45.7
13-Aug-14 ND ND ND ND 14.2 50
23-Oct-14 ND ND ND ND 16.5 52.1
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-Oct-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 67.1
27-Jul-16 ND ND ND ND 31.3 70.1
19-Oct-16 ND ND ND ND 25.5 70.9
14-Mar-17 ND ND ND ND 24.4 64.2
14-Jun-17 ND ND ND ND 26.0 68.6
27-Jul-l 7 ND ND ND ND 24.8 67.1
10-Oct-17 ND ND ND ND 24.8 57.4
14-Mar-18 ND ND ND ND 17.2 65.0
12-Jun-18 ND ND ND ND 19.0 55.7
29-Aug-18 ND ND ND ND 16.0 63.8
30-Nov-18 ND ND ND ND 17.7 52.4
16-Mar-19 ND ND ND ND 17.2 51.7
13-Jun-19 ND ND ND ND 15.0 51.8
11-Sep-19 ND ND ND ND 10.2 49.0
12-Dec-19 ND ND ND ND 9.48 50.0
17-Mar-20 ND ND ND ND 9.87 52.1
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
l 7-Mar-21 ND ND ND ND 8.68 51.8
15-Jun-21 ND ND ND ND 9.09 48.5
15-Sep-21 ND ND ND ND 8.08 40.7
7-Dec-21 ND ND ND ND 7.06 47.8
15-Mar-22 ND ND ND ND 7.8 38.8
15-Jun-22 ND ND ND ND 15 52.3
13-Sep-22 ND ND ND ND 16.2 58.5
7-Dec-22 ND ND ND ND 16.6 52.0
22-Mar-23 ND ND ND ND 11.9 46.1
15-Jun-23 ND ND ND ND 11.9 51.3
13-Sep-23 ND ND ND ND 11.5 51.1
6-Dec-23 ND ND ND ND 9.3 45.3
13-Mar-24 ND 'ND ND ND 11.8 65.4
11-Jun-24 ND ND ND ND 11.6 65.4
Jun-1
Sep-1
Dec-1
Mar-1
Jun-1
Sep-1
Dec-1
Mar-1
Jun-1
Sep-1
Dec-1
Mar-1
Jun-1
Sep-1
Dec-1
Mar-1
Jun-1
Sep-1
Dec-1
Mar-1
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
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Mar-23
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-29 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (ue:/1)
19-Jun-13 242 ND ND ND 4.63 44.8
l l-Jul-13 262 ND ND ND 3.52 37.7
26-Sep-13 246 ND ND ND 4.18 41.4
13-Nov-13 260 ND ND ND 4.11 42.5
5-Feb-14 258 ND ND ND 4.63 41.9
22-May-14 262 ND ND ND 3.52 38.2
27-Aug-14 242 ND ND ND 3.4 41
29-Oct-14 290 ND ND ND 3.64 41
12-Mar-15 299 ND ND ND 4.14 40.5
I I-Jun-15 329 ND ND ND 2.95 42.5
3-Sep-15 276 ND ND ND 2.19 47.3
29-Oct-15 631 ND ND ND 2.74 39.8
l 7-Mar-16 335 ND ND ND 2.92 40.3
8-Jun-16 366 ND ND ND 2.51 42.9
4-Aug-16 401 ND ND ND 2.44 40.6
26-Oct-l 6 392 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
1 l-Oct-17 466 ND ND ND 2.45 37.7
21-Mar-18 533 ND ND ND 2.44 43.1
14-Jun-l 8 474 ND ND ND 2.67 40.1
5-Sep-I 8 454 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-l 9 630 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
I 7-Jun-21 543 ND ND ND 3.59 40.0
23-Sep-21 602 ND ND ND 3.29 40.1
9-Dec-21 625 ND ND ND 2.39 38.7
23-Mar-22 624 ND ND ND 3.1 39.1
22-Jun-22 398 ND ND ND 2.9 41.5
15-Sep-22 591 ND ND ND 2.80 41.8
9-Dec-22 588 ND ND ND 2.69 41.3
29-Mar-23 467 ND ND ND 2.74 41.3
21-Jun-23 490 ND ND ND 2.65 42.2
27-Sep-23 457 ND ND ND 2.82 41.1
13-Dec-23 546 ND ND ND 2.71 39.5
15-Mar-24 438 ND ND ND 2.80 40.6
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20-Jun-24 441 ND ND ND 2.83 41.3
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Oct-13
Dec-13
Feb-14
Apr-14
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Dec-14
Feb-15
Apr-15
Jun-15
Aug-15
Oct-15
Dec-15
Feb-16
Apr-16
Jun-16
Aug-16
Oct-16
Dec-16
Feb-17
Apr-17
Jun-17
Aug-17
Oct-17
Dec-17
Feb-18
Apr-18
Jun-18
Aug-18
Oct-18
Dec-18
Feb-19
Apr-19
Jun-19
Aug-19
Oct-19
Dec-19
Feb-20
Apr-20
Jun-20
Aug-20
Oct-20
Dec-20
Feb-21
Apr-21
Jun-21
Aug-21
Oct-21
Dec-21
Feb-22
Apr-22
Jun-22
Aug-22
Oct-22
Dec-22
Feb-23
Apr-23
Jun-23
Aug-23
Oct-23
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-30 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I)
(,u!!/1) (u!!/1)
19-Jun-13 ND ND ND ND 0.948 36
29-Aug-13 ND ND ND ND 0.952 36.3
7-Nov-13 ND ND ND ND 1.24 35.9
23-Jan-14 ND ND ND ND 1.36 36
21-May-14 ND ND ND ND 1.44 31.99
13-Aug-14 ND ND ND ND 1.5 38
23-Oct-14 ND ND ND ND 1.84 37.1
1 l-Mar-15 1.65 ND ND ND 2.15 38.3
10-Jun-15 2.25 ND ND ND 1.75 40.3
3-Sep-15 3.27 ND ND ND 1.75 44.2
28-Oct-15 3.48 ND ND ND 1.86 37.8
17-Mar-16 5.16 ND ND ND 2.74 39.6
26-May-16 7.38 ND ND ND 2.04 40.2
3-Aug-16 6.79 ND ND ND 2.32 38.6
20-Oct-16 8.69 ND ND ND 2.51 41.3
15-Mar-17 13.6 ND ND ND 2.7 37.7
15-Jun-17 15.2 ND ND ND 2.95 37.8
3-Aug-17 15.7 ND ND ND 3.11 39.8
1 0-Oct-17 13.4 ND ND ND 2.58 34.9
15-Mar-18 16.4 ND ND "ND 3.63 41.0
13-Jun-18 16.9 ND ND ND 3.93 37.4
30-Aug-18 19.8 ND ND ND 3.79 44.1
12-Dec-l 8 23.9 ND ND ND 3.70 35.5
16-Mar-19 25.3 ND ND ND 4.08 35.9
13-Jun-l 9 31.5 ND ND ND 4.13 27.2
11-Sep-l 9 34.8 ND ND ND 3.62 34.5
l 8-Dec-19 44.9 ND ND ND 3.62 39. I
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 2.80 41.3
14-Sep-22 69.8 ND ND ND 2.61 30.5
9-Dec-22 60.5 ND ND ND 2.67 36.5
29-Mar-23 45.5 ND ND ND 2.84 36.6
21-Jun-23 47.0 ND ND ND 3.02 36.8
14-Sep-23 47.8 ND ND ND 3.34 36.7
12-Dec-23 40.2 ND ND ND 3.16 33.4
14-Mar-24 34.2 ND ND ND J.21 34.4
13-Jun-24 37.8 ND ND ND 3.53 34.7
0
0
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
Feb-24 -
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-31 (ug/1) Tetrachloride {ug/1) Chloride (mg/I) (mg/I) (m,-tn (m!/1)
l 9-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-Oct-14 ND ND ND ND 1.23 30
11-Mar-l 5 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
2 l-Oct-15 ND ND ND ND 0.953 29.1
16-Mar-16 ND ND ND ND 1.84 31.5
25-May-16 ND ND ND ND 1.36 32.5
28-Jul-16 ND ND ND ND 1.41 30.6
20-Oct-16 ND ND ND ND 1.14 34.0
15-Mar-l 7 ND ND ND ND 1.19 31.3
15-Jun-l 7 ND ND ND ND 1.21 33.4
2-Aug-17 ND ND ND ND 1.11 33.0
I 0-Oct-17 ND ND ND ND 1.04 30.9
14-Mar-18 ND ND ND ND 0.916 38.8
12-Jun-18 ND ND ND ND 0.948 34.4
29-Aug-18 ND ND ND ND 0.710 40.3
12-Dec-18 ND ND ND ND 0.766 35.2
16-Mar-19 ND ND ND ND 0.754 35.0
13-Jun-19 ND ND ND ND 0.713 36.9
I I-Sep-19 ND ND ND ND 0.610 35.8
14-Dec-l 9 ND ND ND ND 0.583 40.6
l 7-Mar-20 ND ND ND ND 0.572 38.2
l l-Jun-20 ND ND ND ND 0.569 36.7
l 7-Sep-20 ND ND ND ND 0.507 36.5
4-Nov-20 ND ND ND ND 0.501 36.4
l 7-Mar-21 ND ND ND ND 0.501 40.3
l 6-Jun-21 ND ND ND ND 0.451 37.9
15-Sep-21 ND ND ND ND 0.461 31.2
8-Dec-21 ND ND ND ND 0.339 40.3
16-Mar-22 ND ND ND ND 0.4 34.8
16-Jun-22 ND ND ND ND 0.41 35.5
13-Sep-22 ND ND ND ND 0.396 40.0
7-Dec-22 ND ND ND ND 0.410 31.8
23-Mar-23 ND ND ND ND 0.391 35.9
15-Jun-23 ND ND ND ND 0.444 43.1
13-Sep-23 ND ND ND ND 0.340 42.4
7-Dec-23 ND ND ND ND 0.390 39.5
13-Mar-24 ND ND ND ND 0.390 39.5
12-Jun-24 ND ND ND ND 0.558 45.4
Jun-
Sep-
Dec-
Mar-
Jun-
Sep-
Dec-
Mar-
Jun-
Sep-
Dec-
Mar-
Jun-1
Sep-1
Dec-1
Mar-1
Jun-1
Sep-1
Dec-1
Mar-1
Jun-1
Sep-1
Dec-1
Mar-1
Jun-1
Sep-1
Dec-1
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
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Mar-24
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-32 Tetrachloride (ug/1) (uefl) (ug/1) Chloride (ug/1) (mg/I) (mg/I)
14-Nov-13 ND ND ND ND 4.26 52.1
22-Jan-14 ND ND ND ND 5.11 54.5
21-May-14 ND ND ND ND 5.63 54.9
13-Aug-14 ND ND ND ND 4.2 64
23-Oct-14 ND ND ND ND 2.14 62.6
11-Mar-15 ND ND ND ND 2.46 64.2
IO-Jun-I 5 ND ND ND ND 1.21 62.7
2-Sep-15 ND ND ND ND 5.09 59.6
21-Oct-15 ND ND ND ND 1.19 55.1
15-Mar-16 ND ND ND ND 4.48 64.2
25-May-16 ND ND ND ND 3.16 71.8
28-Jul-16 ND ND ND ND 3.44 64.4
19-Oct-16 ND ND ND ND 2.87 66.0
14-Mar-17 ND ND ND ND 2.82 62.8
15-Jun-17 ND ND ND ND 2.37 53.5
2-Aug-17 ND ND ND ND 2.47 65.8
10-Oct-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
l l-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
I 0-Jun-20 ND ND ND ND 2.19 57.0
I 7-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
13-Sep-22 ND ND ND ND 1.59 51.8
7-Dec-22 ND ND ND ND 1.68 48.4
23-Mar-23 ND ND ND ND 1.53 43.6
15-Jun-23 ND ND ND ND 1.77 49.3
13-Sep-23 ND ND ND ND 1.63 52.6
6-Dec-23 ND ND ND ND 1.65 38.5
13-Mar-24 ND ND ND ND 1.83 54.4
l 1-Jun-24 ND ND ND ND 2.22 53.3
Nov-13
Feb-14
May-14
Aug-14
Nov-14
Feb-15
May-15
Aug-15
Nov-15
Feb-16
May-16
Aug-16
Nov-16
Feb-17
May-17
Aug-17
Nov-17
Feb-18
May-18
Aug-18
Nov-18
Feb-19
May-19
Aug-19
Nov-19
Feb-20
May-20
Aug-20
Nov-20
Feb-21
May-21
Aug-21
Nov-21
Feb-22
May-22
Aug-22
Nov-22
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May-23
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TW4-33 Tetrachloride (ug/1) (u~/1) (ug/1) Chloride (ug/1) (mg/I) (mg/I)
14-Nov-13 126 ND ND ND 1.82 47.2
30-Jan-14 124 ND ND ND 2.56 43.5
22-May-14 121 ND ND ND 1.63 46.8
27-Aug-14 104 ND ND ND 1.5 43
29-Oct-14 124 ND ND ND 2.22 44.2
12-Mar-15 134 ND ND ND 1.91 44.2
ll-Jun-15 127 ND ND ND 1.62 46.4
3-Sep-15 123 ND ND ND 1.64 53.4
29-Oct-15 129 ND ND ND 1.92 44.5
l 7-Mar-16 122 ND ND ND 2.13 46.2
8-Jun-l 6 96 ND ND ND 2.06 49.7
4-Aug-16 121 ND ND ND 2.32 48.5
26-Oct-16 109 ND ND ND 2.36 52.4
16-Mar-17 91 ND ND ND 2.11 49.0
20-Jun-17 103 ND ND ND 2.34 49.2
3-Aug-17 127 ND ND ND 2.04 46.9
l l-Oct-17 97.1 ND ND ND 2.09 42.5
15-Mar-18 128 ND ND ND 1.94 49.2
13-Jun-l 8 88 ND ND ND 2.13 44.0
5-Sep-18 113 ND ND ND 1.82 50.0
13-Dec-l 8 141 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
l 8-Sep-20 85 ND ND ND 3.58 51.0
l l-Nov-20 80.6 ND ND ND 3.71 51.5
18-Mar-21 64.9 ND ND ND 4.62 55.6
17-Jun-21 63.9 ND ND ND 6.25 54.7
22-Sep-21 60.2 ND ND ND 4.33 42.5
8-Dec-21 68.9 ND ND ND 4.65 53.8
23-Mar-22 53.1 ND ND ND 3.8 51.4
22-Jun-22 58.7 ND ND ND 3.7 56.7
14-Sep-22 53.9 ND ND ND 3.90 42.2
9-Dec-22 50.5 ND ND ND 3.52 45.1
29-Mar-23 47.7 ND ND ND 3.93 52.6
21-Jun-23 51.8 ND ND ND 4.24 52.9
14-Sep-23 51.3 ND ND ND 4.19 52.0
12-Dec-23 43.4 ND ND ND 4.89 52.6
14-Mar-24 43.3 ND ND ND 4.66 50.1
13-Jun-24 39.9 ND ND ND 5.90 53.2
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
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-34 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (mun (u!!/1)_
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-Oct-14 ND ND ND ND 1.16 17.5
II-Mar-15 ND ND ND ND 1.21 17.7
10-Jun-15 ND ND ND ND 0.868 17.4
3-Sep-15 ND ND ND ND 0.458 15. 1
21-Oct-15 ND ND ND ND 0.368 15.8
16-Mar-16 ND ND ND ND 0.925 17.3
26-May-16 ND ND ND ND 0.605 18
26-May-16 ND ND ND ND 0.605 18
3-Aug-16 ND ND ND ND 0.726 17.2
20-Oct-16 ND ND ND ND 0.612 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-Oct-17 ND ND ND ND 0.774 18.5
14-Mar-18 ND ND ND ND 0.737 19.1
13-Jun-18 ND ND ND ND 0.877 19.5
29-Aug-18 ND ND ND ND 0.736 23.8
12-Dec-18 ND ND ND ND 0.889 18.5
16-Mar-19 ND ND ND ND 0.859 17.9
13-Jun-19 ND ND ND ND 0.994 20.1
1 l-Sep-19 ND ND ND ND 0.934 17.8
l4-Dec-19 ND ND ND ND 1.07 21.4
l 7-Mar-20 ND ND ND ND 1.09 20.1
l 1-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
l 7-Mar-21 ND ND ND ND 10.9 19.3
16-Jun-21 ND ND ND ND 1.08 17.8
15-Sep-2 l 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
14-Sep-22 1.2 ND ND ND 0.788 18.8
8-Dec-22 ND ND ND ND 1.16 17.0
29-Mar-23 1.2 ND ND ND 1.07 20.7
20-Jun-23 1.2 ND ND ND 1.09 21.2
14-Sep-23 ND ND ND ND 1.27 20.6
7-Dec-23 ND ND ND ND 1.08 16.0
13-Mar-24 1.1 ND ND ND 1.35 21.1
12-Jun-24 1.4 ND ND ND 1.45 20.3
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
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May-22
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(ue/.1) fu!!fl)
27-Aug-14 ND ND ND ND 0.2 34
28-Oct-14 ND ND ND ND 0.351 34.1
l l-Mar-15 ND ND ND ND 0.436 34.9
10-Jun-15 ND ND ND ND 0.452 35.2
3-Sep-15 ND ND ND ND 0.304 35.9
28-Oct-l 5 ND ND ND ND 0.419 33.4
16-Mar-16 ND ND ND ND 0.521 35.4
26-May-16 ND ND ND ND 0.631 35.4
3-Aug-16 ND ND ND ND 0.723 34.8
20-Oct-16 ND ND ND ND 0.626 37.1
15-Mar-17 ND ND ND ND 0.673 33.7
15-Jun-l 7 ND ND ND ND 0.699 34.8
2-Aug-17 ND ND ND ND 0.670 36.3
I 0-Oct-17 ND ND ND ND 0.651 31.7
14-Mar-18 ND ND ND ND 0.740 37.4
13-Jun-18 ND ND ND ND 0.662 33.7
30-Aug-18 ND ND ND ND 0.527 39.3
12-Dec-l 8 ND ND ND ND 0.559 43.0
16-Mar-19 ND ND ND ND 0.574 33.5
13-Jun-l 9 ND ND ND ND 0.670 35.5
l l-Sep-19 ND ND ND ND 0.525 31.7
14-Dec-19 ND ND ND ND 0.524 37.4
l 7-Mar-20 ND ND ND ND 0.595 34.5
ll-Jun-20 ND ND ND ND 0.699 34.0
l 7-Sep-20 ND ND ND ND 0.760 32.2
4-Nov-20 ND ND ND ND 0.756 30.4
l 7-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
14-Sep-22 ND ND ND ND 1.61 34.4
7-Dec-22 ND ND ND ND 1.79 27.4
29-Mar-23 ND ND ND ND 1.74 33.8
20-Jun-23 ND ND ND ND 1.91 29.8
13-Sep-23 1.4 ND ND ND 2.00 32.4
7-Dec-23 1.4 ND ND ND 1.61 25.0
13-Mar-24 1.9 ND ND ND 2.13 34.3
12-Jun-24 2.2 ND ND ND 2.16 29.2
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
Aug-22
Nov-22
Feb-23
May-23
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-36 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u!!/1) (n!!/1)
27-Aug-14 ND ND ND ND ND 65
23-Oct-14 ND ND ND ND ND 67.3
ll-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
2 l-Oct-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-Oct-16 ND ND ND ND ND 73.8
15-Mar-17 ND ND ND ND ND 60.2
15-Jun-l 7 ND ND ND ND ND 71.3
2-Aug-17 ND ND ND ND ND 69.6
1 0-Oct-17 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
l l-Jun-20 ND ND ND ND ND 67.0
l 7-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
l 5-Sep-21 ND ND ND ND ND 63.1
8-Dec-21 ND ND ND ND ND 69.9
16-Mar-22 ND ND ND ND 0.1 61.2
l 5-Jun-22 ND ND ND ND ND 68.8
13-Sep-22 ND ND ND ND ND 69.3
7-Dec-22 ND ND ND ND 0.100 59.7
23-Mar-23 ND ND ND ND 0.102 60.7
15-Jun-23 ND ND ND ND ND 68.9
13-Sep-23 ND ND ND ND 0.140 67.3
6-Dec-23 ND ND ND ND ND 45.5
13-Mar-24 ND ND ND ND 0.140 68.6
12-Jun-24 ND ND ND ND 0.147 69.5
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
Feb-24
May-24
0 0
◄ ►
◄►
►
►
◄ ►
◄►
◄ ►
►
l ►
◄ ►
◄►
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-
◄►
◄
◄
◄►
◄►
◄►
►
◄►
◄ ►
◄►
◄ ►
◄►
◄
◄►
(ug/L)
0 0 0
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-37 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I)
(n!!/1) (u!!/1)
8-Jun-15 30200 18 16 2 35 345
31-Aug-l 5 19100 17 14 1.04 32 374
19-Oct-15 19500 13 9 1.17 35 399
9-Mar-16 17500 16 4 1.34 28.4 332
23-May-16 16200 14 ND 1.17 27.9 389
25-Jul-l 6 15900 17 ND ND 33.4 294
12-Oct-16 16400 16 ND ND 26.1 304
8-Mar-17 18000 15 ND ND 32.3 305
13-Jun-17 15800 16 ND ND 31.2 281
26-Jul-17 15000 15. I ND ND 30.5 277
11-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
1 0-Dec-19 13100 8.8 3.12 ND 25.5 220
19-Feb-20 12000 8.5 12.30 ND 28.J 236
27-May-20 11700 11.8 1.44 ND 28.3 321
4-Sep-20 13800 9.6 ND ND 29.5 273
28-Oct-20 10300 6.5 29.40 ND 28.7 254
23-Feb-21 9380 ND ND ND 26.9 242
9-Jun-21 13000 8.46 1.98 ND 26.6 176
24-Aug-21 10200 7.65 ND ND 25.8 220
l-Dec-21 14800 11.50 6.70 5.05 31.3 410
9-Mar-22 13700 12.20 ND ND 29.8 414
8-Jun-22 46800 8.2 12.0 ND 28 267
30-Aug-22 11600 5.4 2.4 ND 26.6 243
30-Nov-22 9640 5.7 ND ND 30.9 578
7-Mar-23 8010 ND ND ND 19.1 209
13-Jun-23 8160 1.6 5.7 ND 35.9 329
9-Aug-23 9620 3.2 ND ND 25.1 252
29-Nov-23 14000 4.7 14.5 1.40 26.2 199
21-Feb-24 8860 7.9 1.0 ND 33.9 363
29-May-24 13500 7.6 ND ND 22.2 208
0
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
Mar-24
Jun-24
CJ'I
0
0
0
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0
0
0
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CJ'I
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0
0
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-38 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u~/1) (u!!/1)
10-Nov-16 ND ND ND ND 11.2 40.0
15-Mar-l 7 ND ND ND ND 10.6 35.7
I 5-Jun-17 ND ND ND ND 10.8 36.2
2-Aug-17 ND ND ND ND 10.1 36.9
10-Oct-l 7 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-l 8 ND ND ND ND 7.77 39.2
12-Dec-l 8 ND ND ND ND 8.48 35.0
16-Mar-19 ND ND ND ND 8.96 33.5
13-Jun-l 9 ND ND ND ND 8.53 33.7
ll-Sep-19 ND ND ND ND 7.61 31.6
14-Dec-19 ND ND ND ND 7.51 36.0
l 7-Mar-20 ND ND ND ND 8.11 33.4
1 l-Jun-20 ND ND ND ND 9 .00 34 .9
l 8-Sep-20 ND ND ND ND 7.35 34.7
4-Nov-20 ND ND ND ND 7.72 35.1
l 8-Mar-21 ND ND ND ND 8.24 37.2
16-Jun-21 ND ND ND ND 9.59 37.7
l 5-Sep-21 ND ND ND ND 8.04 32.1
8-Dec-21 ND ND ND ND 8.02 35.8
22-Mar-22 ND ND ND ND 7.7 32.7
16-Jun-22 ND ND ND ND 7.9 37.3
14-Sep-22 ND ND ND ND 7.57 32.9
7-Dec-22 ND ND ND ND 8.90 36.4
29-Mar-23 ND ND ND ND 8.78 37.2
20-Jun-23 ND ND ND ND 8.20 36.3
13-Sep-23 ND ND ND ND 8.18 41.1
7-Dec-23 ND ND ND ND 8.19 34.3
13-Mar-24 ND ND ND ND 8.61 41.7
l 2-Jun-24 ND ND ND ND 9.32 44.1
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
Feb-24
May-24
0
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-39 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I)
(m!/1) (u~m
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-l 7 5560 8.20 ND 1.31 6.25 120
26-Jul-l 7 10000 14.40 ND 1.50 7.74 132
1 I-Oct-17 552 ND ND ND 2.65 73.5
12-Mar-18 2870 3.10 ND ND 3.33 118
8-Jun-18 7160 7.94 ND ND 4.84 107
22-Aug-18 8180 12.50 2.33 ND 6.05 no
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
1 0-Dec-19 1650 1.14 ND ND 0.948 74.7
19-Feb-20 812 ND ND ND 0.792 76.5
27-May-20 5870 7.56 ND ND 5.01 88.5
4-Sep-20 5960 8.18 ND ND 2.69 63.2
28-Oct-20 648 ND 1.19 ND 7.03 83.2
23-Feb-21 2970 ND ND ND 2.12 53.0
9-Jun-21 2490 2.92 ND ND 12.0 123.0
24-Aug-21 858 ND ND ND 2.70 78.7
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 I.4 ND 9.0 76.8
30-Aug-22 843 ND ND ND 3.72 85.2
30-Nov-22 1720 1.20 ND ND 7.86 80.6
7-Mar-23 1850 ND ND ND 1.37 38.7
13-Jun-23 3330 1.8 3.1 ND 7.96 75.4
9-Aug-23 3440 2.8 ND ND 5.01 95.5
29-Nov-23 1200 1.1 4.8 ND 2.74 74.0
21-Feb-24 893 1.1 ND ND 3.80 98.6
29-May-24 4380 2.6 ND ND 4.22 84.9
0
Nov-16
Feb-17
May-17 -
Aug-17
Nov-17
Feb-18
May-18
Aug-18
Nov-18
Feb-19
May-19
Aug-19
Nov-19 ••
Feb-20
May-20
Aug-20
Nov-20
Feb-21
May-21
Aug-21
Nov-21
Feb-22 -
May-22
Aug-22
Nov-22
Feb-23
May-23
Aug-23
Nov-23 ••
Feb-24
May-24
Aug-24
N
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J1mll) (u~/D
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
I 0-Dec-19 314 ND ND ND 2.89 36.7
19-Feb-20 364 ND ND ND 2.98 38.5
27-May-20 367 ND ND ND 2.91 36.5
4-Sep-20 333 ND ND ND 2.88 34.2
28-Oct-20 264 ND ND ND 2.58 34.6
23-Feb-21 436 ND 3.51 ND 2.43 36.0
9-Jun-21 343 ND ND ND 3.77 27.5
24-Aug-21 301 ND 1.32 ND 1.50 31.8
1-Dec-21 286 ND ND ND 2.60 38.4
9-Mar-22 238 ND ND ND 2.5 38.4
8-Jun-22 323 ND ND ND 1.9 36.6
30-Aug-22 302 ND ND ND 2.22 39.3
30-Nov-22 298 ND ND ND 2.24 44.8
7-Mar-23 259 ND ND ND 1.28 23.5
13-Jun-23 220 ND 1.3 ND 2.04 37.6
9-Aug-23 220 ND ND ND 1.88 39.7
29-Nov-23 402 ND 2.1 2 2.09 38.1
21-Feb-24 187 ND ND ND 2.02 39.6
29-May-24 393 ND ND ND 1.86 39.8
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Chloroform Carbon Chloromethane Methylene Chloride TW4-41 (ug/1) Tetrachloride (ug/1) Chloride Nitrate (mg/I) (mg/I) (ue:/1) (ue:/1)
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
I 0-Dec-19 1410 ND ND ND 6.11 42.1
19-Feb-20 1200 ND ND ND 6.12 44.4
27-May-20 1220 ND ND ND 6.78 41.7
4-Sep-20 1110 ND ND ND 6.69 40.2
28-Oct-20 1020 ND ND ND 6.25 39.7
23-Feb-21 1170 ND ND ND 6.41 40.6
9-Jun-21 1130 ND ND ND 7.45 39.3
24-Aug-21 1100 ND ND ND 3.77 37.1
l-Dec-21 1030 ND ND ND 6.72 43.2
9-Mar-22 1030 ND ND ND 6.2 37.3
8-Jun-22 1010 ND ND ND 6.0 41.1
30-Aug-22 1060 ND ND ND 5.92 41.9
30-Nov-22 1050 ND ND ND 6.00 38.0
7-Mar-23 985 ND ND ND 4.30 34.4
13-Jun-23 1040 ND 1.8 ND 6.27 40.3
9-Aug-23 1050 ND ND ND 5.59 41.0
29-Nov-23 1580 ND 7 ND 5.78 43.3
21-Feb-24 913 ND ND ND 6.01 41.4
29-May-24 1660 ND ND ND 5.83 41.4
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Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-42 {ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) Jm!ID (u!!/1)
19-Jun-19 ND ND ND ND 2.57 23.3
11-Sep-19 ND ND ND ND 2.75 20.6
12-Dec-l 9 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.l
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
l 5-Sep-21 ND ND ND ND 3.26 16.6
7-Dec-21 ND ND ND ND 2.02 24.2
15-Mar-22 ND ND ND ND 2.5 21.5
15-Jun-22 ND ND ND ND 3.3 24.0
30-Aug-22 ND ND ND ND 3.03 22.8
7-Dec-22 ND ND ND ND 3.30 15.6
22-Mar-23 ND ND ND ND 2.78 21.1
15-Jun-23 ND ND ND ND 3.14 20.9
13-Sep-23 ND ND ND ND 3.33 20.4
6-Dec-23 ND ND ND ND 2.49 16.5
13-Mar-24 ND ND ND ND 3.51 24.4
29-May-24 ND ND ND ND 3.52 23.5
0
27-Oct-18
15-May-19
•
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1-Dec-19 ►
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18-Jun-20 ..
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4-Jan-21
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23-Jul-21
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8-Feb-22
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Chloroform Carbon Chloromethane Methylene Chloride TW4-43 (ug/1) Tetrachloride (ug/1) Chloride Nitrate (mg/I) (mg/I) (ue:/1) (ue:/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
13-Sep-22 ND ND ND ND 0.383 43.1
7-Dec-22 ND ND ND ND 0.383 40.7
23-Mar-23 ND ND ND ND 0.384 28.0
15-Jun-23 ND ND ND ND 0.432 41.7
13-Sep-23 ND ND ND ND 0.410 35.2
7-Dec-23 ND ND ND ND 0.450 41.1
13-Mar-24 ND ND ND ND 0.530 41.7
12-Jun-24 ND ND ND ND 0.561 42.3
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Tab L
Contour Map Based Chloroform Plume Mass Calculations and Data over Time
~ --(II ....
Ill
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1000
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400
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~~~~~~~~~~&&&&~~~~~~~~~~~~~~~~~####~ cv~o.O-~o.\-~oJ-~O?~a.°'~o.\-~o.1-~0?~a.°'~o.">-~o1-~o)~o.tt.-~o.\-~o.1-~0?~o.tt.-~o.\-~oJ-o)~o.0<~&~oJ-~O?~o.0<~&~o.1-~0? o.O-o.\-~oJ-O? o.O-o.\-o.1-~
~ mass estimate
--Linear (mass estimate)
HYDRO
GEO
CHEM, INC.
TIME SERIES OF RESIDUAL CHLOROFORM MASS
ESTIMATES
Approved I Date
SJS
Author J Date
SJS
File Name !Figure
MassEstTlrMSerles,xl5 La 1
https://hgcinc.sharepoint.comNOL4/718000/aug24/chloroform/masscalc/FL.1_resid_chl_mass_2Q24.xlsx: FL.1 Resid CHL Mass
TABLE L.1
Chloroform Plume Residual Mass
Since Third Quarter 2015
Residual
Plume Mass
Quarter (lbs)
Q315 1712
Q415 1869
Q116 1946
Q216 2261
Q316 1718
Q416 1711
Q117 1271
Q217 1372
Q317 1948
Q417 884
Q1 18 1271
Q218 1271
Q318 1208
Q418 1107
Q1 19 833
Q219 1408
Q319 1050
Q419 770
Q1 20 1106
Q220 1056
Q3 20 909
Q4 20 715
Q1 21 1273
Q2 21 784
Q3 21 933
Q4 21 981
Q1 22 711
Q2 22 1124
Q3 22 850
Q4 22 893
Q1 23 444
Q2 23 928
Q3 23 663
Q4 23 845
Q1 24 461
Q2 24 965
No tes :
lbs= pounds
https://hgcinc.sha repoint.com/VOL4/718000/a ug24/ch loroform/masscalc/FL.1 _resid _ch l_mass _ 2Q24.xlsx: Table L.1
CHLOROFORM RESIDUAL MASS ESTIMATE DETAILS:
Chloroform Data FHe: CHL _ Surferlnput_ 2Q_ 24.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, 2024 (previous quarter) data used at wells: none.
Chloroform residual mass e timate kriged grid files (ascii format):
Ucm2Q24wl.grd: second quarter, 2024 Water Level Grid (ft amsl)
Ucm2Q24bb.grd: second quarter, 2024 Aquifer Base Grid (ft amsl)
Ucm2Q24sat.grd: second quarter, 2024 Saturated Thickness Grid (ft)
Ucm2Q241ogchl.grd: second quarter, 2024 log of chloroform grid (log ofug/L)
Ucm2Q24chl.grd: second quarter, 2024 Chloroform Concentration Grid (ug/L)
Ucm2Q24ge70.grd: second quarter, 2024 Chloroform Concentration GE 70 Grid (ug/L)
Ucm2Q24volm3.grd: second quarter, 2024 Groundwater Volume Grid (m3)
Ucm2Q24masslb.grd: second quarter, 2024 Chloroform Plume Mass Grid (lb)
Chloroform residual mass estimate kriged grid XYZ files (ascii format):
Ucm2Q24wl.dat: second quarter, 2024 Water Level Grid XYZ file (ft amsl)
Ucm2Q24bb.dat: second quarter, 2024 top of Aquifer Base Grid XYZ file (ft amsl)
Ucm2Q24sat.dat: second quarter, 2024 Saturated Thickness Grid XYZ file (ft)
Ucm2Q24logchl.dat: second quarter, 2024 log of chloroform grid XYZ file (log of ug/L)
Ucm2Q24chl.dat: second quarter, 2024 Chloroform Concentration Grid XYZ file (ug/L)
Ucm2Q24ge70.dat: second quarter, 2024 Chloroform Concentration GE 70 Grid (ug/L)
XYZ file
Ucm2Q24volm3.dat: second quarter, 2024 Groundwater Volume Grid XYZ file (m3)
Ucm2Q24masslb.dat: second quarter, 2024 Chloroform Plume Mass Grid XYZ file (lb)
Chloroform plume mass estimate file: Ucm2Q24_result.xls
TabM
CSV Transmittal Letter
Jordan Christine App
From:
Sent:
To:
Cc:
Subject:
Attachments:
Dear Mr. Wingate,
Jordan Christine App
Wednesday, August 7, 2024 11 :22 AM
[e-mail]
Dean Henderson ([e-mail]); [e-mail]; David Frydenlund; Scott
Bakken; Garrin Palmer; Logan Shumway; Kathy Weinel
Transmittal of CSV Files White Mesa Mill 2024 Q2 Chloroform Monitoring
24E2464 FINAL EnergyFuels-Client 13 Jun 24 1346.csv; 24F0441 FINAL EnergyFuels-
Client 19 Jun 24 1545.csv; 24F1276 FINAL EnergyFuels-Client 27 Jun 24 1455.csv;
24F1794 FINAL EnergyFuels-Client 03 Jul 24 1247.csv; Q2 2024 Chloroform Field
Data .csv; Q2 2024 DTW all programs -EIM.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 2024, 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 303-389-4131 if you have any questions on this transmittal.
Yours Truly,
Jordan
eF Energy Fuels Resources (USA) Inc.
Jordan Christine App
Environmental Scientist
t:303-389-4131 I c:714-718-4610 I f:303.389.4125
[e-mail]
225 Union Blvd ., Suite 600
Lakewood , CO 80228
http:/fwww.energyfuels..com
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Exceedance Notices for the Reporting Period
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