DRC-2021-002284 - 0901a06880e0f071

Div oi Waste Management and Radiation Control
Energy FueEgloirLs3a) Inc. 225 Union Blvd. Suite 600 Lakewood, CO, US, 80228
303 974 2140
DR2-20Z(- 002104- www.energyfuels.com
February 18, 2021
Sent VIA EXPEDITED DELIVERY
Mr. Ty L. Howard
Director
Division of Waste Management and Radiation Control
Utah Department of Environmental Quality
195 North 1950 West
P.O. Box 144880
Salt Lake City, UT 84114-4820
Re: Transmittal of 4th Quarter 2020 Nitrate Monitoring Report
Stipulation and Consent Order Docket Number UGW12-04 White Mesa Uranium Mill
Dear Mr. Howard:
Enclosed are two copies of the White Mesa Uranium Mill Nitrate Monitoring Report for the 4th
Quarter of 2020 as required by the Stipulation and Consent Order Docket Number UGW12-04, as well
as two CDs each containing a word searchable electronic copy of the report.
If you should have any questions regarding this report please contact me.
Yours very tryly,
1Z
ENERGY FUELS RESOURCES (USA) INC.
Kathy Weinel
Quality Assurance Manager
cc: David Frydenlund
Logan Shumway
Terry Slade
Scott Bakken
February 18, 2021
Sent VIA EXPEDITED DELIVERY
Mr. Ty L. Howard
Director
Division of Waste Management and Radiation Control
Utah Department of Environmental Quality
195 North 1950 West
P.O. Box 144880
Salt Lake City, UT 84114-4820
Re: Transmittal of 4th Quarter 2020 Nitrate Monitoring Report
Energy Fuels Resources (USA) Inc.
225 Union Blvd. Suite 600
Lakewood, CO, US, 80228
303 974 2140
www.energyfuel'.com
Stipulation and Consent Order Docket Number UGW12-04 White Mesa Uranium Mill
Dear Mr. Howard:
Enclosed are two copies of the White Mesa Uranium Mill Nitrate Monitoring Report for the 4th
Quarter of 2020 as required by the Stipulation and Consent Order Docket Number UGW12-04, as well
as two CDs each containing a word searchable electronic copy of the report.
If you should have any questions regarding this report please contact me.
ENERGY FUELS RESOURCES (USA) INC.
Kathy Weinel
Quality Assurance Manager
cc: David Frydenlund
Logan Shumway
Terry Slade
Scott Bakken
White Mesa Uranium Mill
Nitrate Monitoring Report
State of Utah
Stipulated Consent Agreement, December 2014
Docket No. UGW12-04
4th Quarter
(October through December)
2020
Prepared by:
Energy Fuels Resources (USA) Inc.
225 Union Boulevard, Suite 600
Lakewood, CO 80228
February 18, 2021
TABLE OF CONTENTS
1.0 INTRODUCTION ................................................................................................. 1
2.0 GROUNDWATER NITRATE MONITORING ................................................ I
2.1 Samples and Measurements Taken During the Quarter ..................................... 1
2.1.1 Nitrate Monitoring ...................................................................................... 1
2.1.2 Parameters Analyzed .................................................................................. 2
2.1.3 Groundwater Head and Level Monitoring .................................................. 3
2.2 Sampling Methodology and Equipment and Decontamination Procedures ....... 3
2.2.1 Well Purging, Sampling and Depth to Groundwater .................................. 3
2.2.2 Piezometer Sampling .................................................................................. 4
2.3 Field Data ............................................................................................................ 5
2.4 Depth to Groundwater Data and Water Table Contour Map .............................. 5
2.5 Laboratory Results .............................................................................................. 5
2.5.1 Copy of Laboratory Results ........................................................................ 5
2.5.2 Regulatory Framework ............................................................................... 5
3.0 QUALITY ASSURANCE AND DATA VALIDATION ................................... 5
3.1 Field QC Samples ............................................................................................... 6
3.2 Adherence to Mill Sampling SOPs ..................................................................... 6
3.3 Analyte Completeness Review ........................................................................... 6
3.4 Data Validation ................................................................................................... 6
3.4.1 Field Data QA/QC Evaluation .................................................................... 7
3.4.2 Holding Time Evaluation ............................................................................ 8
3.4.3 Analytical Method Checklist ...................................................................... 8
3.4.4 Reporting Limit Evaluation ........................................................................ 8
3.4.5 QA/QC Evaluation for Sample Duplicates ................................................. 8
3.4.6 Other Laboratory QA/QC ........................................................................... 8
3.4.7 Receipt Temperature Evaluation ................................................................. 9
3.4.8 Rinsate Check ............................................................................................. 9
4.0 INTERPRETATION OF DATA ......................................................................... 9
4.1 Interpretation of Groundwater Levels, Gradients and Flow Directions ............. 9
4.1.1 Current Site Groundwater Contour Map ..................................................... 9
4.1.2 Comparison of Current Groundwater Contour Map to Groundwater Contour Map
for Previous Quarter .................................................................................. 14
4.1.4 Depth to Groundwater Measured and Groundwater Elevation ................. 15
4.2 Effectiveness of Hydraulic Containment and Capture ...................................... 15
4.2.1 Hydraulic Containment and Control. ........................................................ 15
4.2.2 Current Nitrate and Chloride Isoconcentration Maps ............................... 19
4.2.3 Comparison of Areal Extent ............................................................................ 19
4.2.4 Nitrate and Chloride Concentration Trend Data and Graphs .................... 2 1
4.2.5 Interpretation of Analytical Data .............................................................. 21
4.3 Estimation of Pumped Nitrate Mass and Residual Nitrate Mass within the Plume
.......................................................................................................................... 23
5.0 LONG TERM PUMP TEST AT TWN-02, TW4-22, TW4-24, and TW4-25
OPERA TIO NS REPORT .................................................................................. 25
5.1 Introduction ....................................................................................................... 25
5.2 Pumping Well Data Collection ......................................................................... 25
5.3 Water Level Measurements .............................................................................. 26
5.4 Pumping Rates and Volumes ............................................................................ 26
5.4.1 TW4-41 ............................................................................................................ 27
5.4.2 TW4-ll ............................................................................................................ 27
6.0
6.1
7.0
8.0
9.0
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
Table 9
CORRECTIVE ACTION REPORT ................................................................. 27
Assessment of Previous Quarter's Corrective Actions ..................................... 27
CONCLUSIONS AND RECOMMENDATIONS ............................................ 27
ELECTRONIC DATA FILES AND FORMAT .............................................. 32
SIGNATURE AND CERTIFICATION ........................................................... 33
LIST OF TABLES
Summary of Well Sampling and Constituents for the Period
Nitrate Mass Removal Per Well Per Quarter
Nitrate Well Pumping Rates and Volumes
Quarterly Calculation of Nitrate Mass Removed and Total Volume of Water
Pumped
Nitrate Data over Time for MW-30, MW-31, MW-5, and MW-11
Slug Test Results
Pre-Pumping Saturated Thickness
Pre-Pumping Hydraulic Gradients and Flow Calculations
Recalculated Background Flow
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 Kriged Current Quarter Groundwater Contour Map and Weekly, Monthly and Quarterly
Depth to Water Data
Tab D Kriged Previous Quarter Groundwater Contour Map
Tab E Hydrographs of Groundwater Elevations over Time for Nitrate Monitoring Wells
Tab F Depths to Groundwater and Elevations over Time for Nitrate Monitoring Wells
Tab G Laboratory Analytical Reports
Tab H Quality Assurance and Data Validation Tables
H-1 Field Data QA/QC Evaluation
H-2 Holding Time Evaluation
H-3 Analytical Method Check
H-4 Reporting Limit Evaluation
H-5 QA/QC Evaluation for Sample Duplicates
H-6 QC Control limits for Analysis and Blanks
H-7 Receipt Temperature Evaluation
H-8 Rinsate Evaluation
Tab I Kriged Current Quarter Nitrate and Chloride Isoconcentration Maps
Tab J Analyte Concentration Data Over Time
Tab K Nitrate and Chloride Concentration Trend Graphs
Tab L CSV Transmittal Letter
Tab M Residual Mass Estimate Analysis Figure
111
ACRONYM LIST
AWAL
CA
CAP
CIR
DIFB
DWMRC
DRC
EFRI
ft amsl
GWDP
LCS
MS
MSD
QA
QAP
QC
RPD
sco
SOPs
UDEQ
voe
American West Analytical Laboratory
Consent Agreement
Corrective Action Plan
Contamination Investigation Report
Deionized Field Blanks
Utah Division of Waste Management and Radiation Control
Utah Division of Radiation Control
Energy Fuels Resources (USA) Inc.
feet above mean sea level
Groundwater Discharge Permit
Laboratory Control Spike
Matrix Spike
Matrix Spike Duplicate
Quality Assurance
Groundwater Monitoring Quality Assurance Plan
Quality Control
Relative Percent Difference
Stipulated Consent Order
Standard Operating Procedures
Utah Department of Environmental Quality
Volatile Organic Compound
IV
1.0 INTRODUCTION
The Utah Department of Environmental Quality ("UDEQ") Division of Waste Management and
Radiation Control ("DWMRC") noted in a Request dated September 30, 2008 (the "Request"),
for a Voluntary Plan and Schedule to Investigate and Remediate Nitrate Contamination at the
White Mesa Uranium Mill (the "Mill") (the "Plan"), that nitrate levels have exceeded the State
water quality standard of 10 mg/L in certain monitoring wells. As a result of the Request,
Energy Fuels Resources (USA) Inc. ("EFRI") entered into a Stipulated Consent Agreement with
the Utah Water Quality Board in January 2009 which directed the preparation of a Nitrate
Contamination Investigation Report ("CIR"). A subsequent letter dated December 1, 2009,
among other things, recommended that EFRI also address elevated chloride concentrations in the
CIR. The Stipulated Consent Agreement was amended in August 2011. Under the amended
Consent Agreement ("CA"), EFRI submitted a Corrective Action Plan ("CAP"), pursuant to the
requirements of the Utah Groundwater Quality Protection Rules [UAC R317-6-6.15(C -E)] on
November 29, 2011 and revised versions of the CAP on February 27, 2012 and May 7, 2012. On
December 12, 2012, DWMRC signed the Stipulation and Consent Order ("SCO"), Docket
Number UGW12-04, which approved the EFRI CAP, dated May 7, 2012. The SCO ordered
EFRI to fully implement all elements of the May 7, 2012 CAP.
Based on the schedule included in the CAP and as delineated and approved by the SCO, the
activities associated with the implementation of the CAP began in January 2013. The reporting
requirements specified in the CAP and SCO are included in this quarterly nitrate report.
This is the Quarterly Nitrate Monitoring Report, as required under the SCO, State of Utah
Docket No. UGW12-04 for the fourth quarter of 2020. This report meets the requirements of the
SCO, State of UDEQ Docket No. UGW12-04 and is the document which covers nitrate
corrective action and monitoring activities during the fourth quarter of 2020.
2.0 GROUNDWATER NITRATE 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. Nitrate samples and measurements taken during this reporting period
are discussed in the remainder of this section.
2.1.1 Nitrate Monitoring
Quarterly sampling for nitrate monitoring parameters was performed in the following wells:
TWN-1
TWN-2
TWN-3
TWN-4
TWN-7
TWN-18
TW4-22*
TW4-24*
TW4-25*
Piezometer 1
Piezometer 2
Piezometer 3A **
1
As discussed in Section 2.1.2 the analytical constituents required by the CAP are inorganic
chloride and nitrate+nitrite as N (referred to as nitrate in this document)
* Wells TW4-22, TW4-24, TW4-25 are chloroform investigation wells (wells installed and
sampled primarily for the chloroform investigation) and are sampled as part of the chloroform
program. The analytical suite for these three wells includes nitrate, chloride and a select list of
Volatile Organic Compounds ("VaCs") as specified in the chloroform program. These three
wells are included here because they are being pumped as part of the remediation of the nitrate
contamination as required by the SCO and the CAP. The nitrate and chloride data are included
in this report as well as in the chloroform program quarterly report. The VOC data for these
three wells will be reported in the chloroform quarterly monitoring report only.
** Piezometer 3 was abandoned and replaced with Piezometer 3A in March 2016.
The December 12, 2012 SCO approved the CAP, which specified the cessation of sampling in
TWN-5, TWN-6, TWN-8, TWN-9, TWN-10, TWN-11, TWN-12, TWN-13, TWN-14, TWN-15,
TWN-16, TWN-17, and TWN-19. The CAP and sea also approved the abandonment of TWN-
5, TWN-8, TWN-9, TWN-10, TWN-11, TWN-12, TWN-13, TWN-15, and TWN-17 within 1
year of the sea approval. These wells were abandoned in accordance with the DWMRC-
approved Well Abandonment Procedure on July 31, 2013. Wells TWN-6, TWN-14, TWN-16,
and TWN-19 have been maintained for depth to groundwater monitoring only, as noted in the
CAP.
Table 1 provides an overview of all locations sampled during the current period, along with the
date samples were collected from each location, and the date(s) upon which analytical data were
received from the contract laboratory. Table 1 also identifies rinsate samples collected, as well
as sample numbers associated with any required duplicates.
As indicated in Table 1, nitrate monitoring was performed in the nitrate monitoring wells,
chloroform wells TW4-22, TW4-24, TW4-25 and Piezometers 1, 2, and 3A. Analytical data for
all of the above-listed wells, and the piezometers, are included in Tab G.
Nitrate and chloride are also monitored in all of the Mill's groundwater monitoring wells and
chloroform investigation wells. Data from those wells for this quarter are incorporated in certain
maps and figures in this report but are discussed in their respective programmatic reports.
2.1.2 Parameters Analyzed
Locations sampled during this reporting period were analyzed for the following constituents:
• Inorganic Chloride
• Nitrate plus Nitrite as Nitrogen (referred to herein as nitrate)
Use of analytical methods consistent with the requirements found in the White Mesa Mill
Groundwater Quality Assurance Plan, ("QAP") Revision 7.6, dated August 22, 2019 was
confirmed for all analytes, as discussed later in this report.
2
2.1.3 Groundwater Head and Level Monitoring
Depth to groundwater was measured in the following wells and/or piezometers, pursuant to Part
I.E.3 of the Groundwater Discharge Permit ("GWDP"):
• The quarterly groundwater compliance monitoring wells
• Existing well MW-4 and all of the temporary chloroform investigation wells
• Piezometers -P-1, P-2, P-3, P-4 and P-5
• MW-20, MW-22, and MW-34
• The DR piezometers that were installed during the Southwest Hydrogeologic
Investigation
• Nitrate wells TWN-1, TWN-2, TWN-3, TWN-4, TWN-6, TWN-7, TWN-14, TWN-16,
TWN-18 and TWN-19
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.
All well levels used for groundwater contour mapping were measured and recorded within 5
calendar days of each other as indicated by the measurement dates in the summary sheet under
Tab C. Field data sheets for groundwater measurements are also provided in Tab C.
Weekly and monthly depth to groundwater measurements were taken in the chloroform pumping
wells MW-4, MW-26, TW4-1, TW4-2, TW4-11, TW4-19, TW4-4, TW4-21, TW4-37, TW4-39,
TW4-40, TW4-41, and the nitrate pumping wells TW4-22, TW4-24, TW4-25, and TWN-2.
In addition, monthly water level measurements were taken in non-pumping wells MW-27, MW-
30, MW-31, TWN-1, TWN-3, TWN-4, TWN-7, and TWN-18 as required by the CAP.
2.2 Sampling Methodology and Equipment and Decontamination Procedures
The QAP provides a detailed presentation of procedures utilized for groundwater sampling
activities under the GWDP.
The sampling methodology, equipment and decontamination procedures that were performed for
the nitrate contaminant investigation, as summarized below, are consistent with the QAP.
2.2.1 Well Purging, Sampling and Depth to Groundwater
A list of the wells in order of increasing nitrate contamination is generated quarterly. The order
for purging is thus established. The list is included with the Field Data Worksheets under Tab B.
Mill personnel start purging with all the nondetect wells and then move to the wells with
detectable nitrate concentrations, progressing from the wells having the lowest nitrate
contamination to wells with the highest nitrate contamination.
3
Before leaving the Mill office, the pump and hose are decontaminated using the cleaning agents
described in Attachment 2-2 of the QAP. Rinsate blanks are collected at a frequency of one
rinsate per 20 field samples.
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
specified in the QAP 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
2. Purging two casing volumes with stable field parameters (within 10% Relative Percent
Difference ["RPD"])
3. Purging a well to dryness and stability (within 10% RPD) of a limited list of field parameters
after recovery.
Mill personnel proceed to the first well, which is the well with the lowest concentration (i.e. non-
detect) of nitrate based on the previous quarter's sampling results. Well depth measurements are
taken and the one casing volume is calculated. The purging strategy that will be used for the
well is determined at this time based on the depth to water measurement and the previous
production of the well. The Grundfos pump (a 6 to 10 gallon per minute [gpm] pump) is then
lowered to the appropriate depth in the well and purging is started. At the first well, the purge
rate is measured for the purging event by using a calibrated 5 gallon bucket. After the
evacuation of the well has been completed, the well is sampled when possible, and the pump is
removed from the well and the process is repeated at each well location moving from the least
contaminated to most contaminated well. If sample collection is not possible due to the well
being purged dry, a sample is collected after recovery using a disposable bailer and as described
in Attachment 2-3 of the QAP. Sample collection follows the procedures described in
Attachment 2-4 of the QAP.
After the samples have been collected for a particular well, the samples are placed into a cooler
that contains ice. The well is then recapped and Mill personnel proceed to the next well. If a
bailer has been used it is disposed of.
Decontamination of non-dedicated equipment, using the reagents in Attachment 2-2 of the QAP,
is performed between each sample location, and at the beginning of each sampling day, in
addition to the pre-event decontamination described above.
2.2.2 Piezometer Sampling
Samples are collected from Piezometers 1, 2 and 3A, if possible. Samples are collected from
piezometers using a disposable bailer after one set of field measurements have been collected.
Due to the difficulty in obtaining samples from the piezometers, the purging protocols set out in
the QAP are not followed.
After samples are collected, the bailer is disposed of and samples are placed into a cooler
containing ice for sample preservation and transit to the Mill's contract analytical laboratory,
American West Analytical Laboratories ("AWAL").
4
2.3 Field Data
Attached under Tab B are copies of all Field Data Worksheets that were completed during the
quarter for the nitrate investigation monitoring wells and piezometers identified in Section 2.1.1
and Table 1.
2.4 Depth to Groundwater Data and Water Table Contour Map
Depth-to-groundwater measurements that were utilized for groundwater contours are included on
the Quarterly Depth to Water Sheet at Tab C of this Report along with the kriged groundwater
contour map for the current quarter generated from this data. All well levels used for
groundwater contour mapping were measured and recorded within 5 calendar days of each other
as indicated by the measurement dates in the summary sheet under Tab C. A copy of the kriged
groundwater contour map generated from the previous quarter's data is provided under Tab D.
2.5 Laboratory Results
2.5.1 Copy of Laboratory Results
The analytical results were provided by AW AL. Table 1 lists the dates when analytical results
were reported to the Quality Assurance ("QA") Manager for each well or other sample.
Analytical results for the samples collected for this quarter's nitrate investigation and a limited
list of chloroform investigation nitrate and chloride results are provided under Tab G of this
Report. Also included under Tab Gare the results of analyses for duplicate samples and rinsate
samples for this sampling effort, as identified in Table 1. See the Groundwater Monitoring
Report and Chloroform Monitoring Report for this quarter for nitrate and chloroform analytical
results for the groundwater monitoring well.s and chloroform investigation wells not listed in
Table 1.
2.5.2 Regulatory Framework
As discussed in Section 1.0 above, the Request, Plan, and CA each triggered a series of actions
on EFRI' s part. Potential surficial sources of nitrate and chloride have been described in the
December 30, 2009 CIR and additional investigations into potential sources were completed and
discussed with DWMRC in 2011. Pursuant to the CA, the CAP was submitted to the Director of
the Division Waste Management and Radiation Control (the "Director") on May 7, 2012. The
CAP describes activities associated with the nitrate in groundwater. The CAP was approved by
the Director on December 12, 2012. This quarterly report documents the monitoring consistent
with the program described in the CAP.
3.0 QUALITY ASSURANCE AND DATA VALIDATION
EFRI' s QA Manager performed a QNQuality Control ("QC") review to confirm compliance of
the monitoring program with the 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 data methods and data. Identification
5
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
field data QNQC, holding times, receipt temperature and laboratory data QNQC are discussed
in Sections 3.4.1 through 3.4.7 below.
The analytical laboratory has provided summary reports of the analytical QNQC measurements
necessary to maintain conformance with National Environmental Laboratory Accreditation
Conference certification and reporting protocol. The Analytical Laboratory QNQC 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 G. Results of the
review of the laboratory QNQC information are provided under Tab H and 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 nitrate investigation program consist of one field duplicate sample for
each 20 samples, DI Field Blanks ("DIFB"), and equipment rinsate samples.
During the quarter, one duplicate sample was collected as indicated in Table 1. The duplicate
was sent blind to the analytical laboratory and analyzed for the same parameters as the nitrate
wells.
One rinsate blank sample was collected as indicated on Table 1. Rinsate samples are labeled
with the name of the subsequently purged well with a terminal letter "R" added (e.g. TWN-7R).
The field QC sample results are included with the routine analyses under Tab G.
3.2 Adherence to Mill Sampling SOPs
The QA Manager review of Mill Personnel's adherence to the existing SOPs, confirmed that the
QNQC requirements established in the QAP and Chloroform QAP were met.
3.3 Analyte Completeness Review
All analyses required by the GWDP for nitrate 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
nitrate monitoring program. Consistent with these requirements, the QA Manager performed the
following evaluations: a field data QNQC evaluation, a holding time evaluation, an analytical
method check, a reporting limit evaluation, a QC evaluation of sample duplicates, a QC
evaluation of control limits for analysis and blanks, a receipt temperature evaluation, and a
6
rinsate evaluation. Because no VOCs are analyzed for the nitrate contamination investigation,
no trip blanks are required in the sampling program. Each evaluation is discussed in the
following sections. Data check tables indicating the results of each test are provided under Tab
H.
3.4.1 Field Data QA/QC Evaluation
The QA Manager performs a review of all 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 stability of five parameters: conductance, pH,
temperature, redox potential, turbidity, and dissolved oxygen ("DO"). Review of the Depth to
Water data confirms that all depth measurements used for development of groundwater contour
maps were conducted within a five-day period of each other. The results of this quarter's review
are provided under Tab H.
Based upon the review of the field data sheets, field work was completed in compliance with the
QAP purging and field measurement requirements. A summary of the purging techniques
employed and field measurements taken is described below:
Purging Two Casing Volumes with Stable Field Parameters (within 10% RPD)
Wells TWN-01, TWN-04, and TWN-18 were sampled after two casing volumes were removed.
Field parameters pH, specific conductivity, turbidity, water temperature, DO, and redox potential
were measured during purging. All field parameters for this requirement were stable within 10%
RPD.
Purging a Well to Dryness and Stability of a Limited List of Field Parameters
Wells TWN-03 and TWN-07 were purged to dryness before two casing volumes were evacuated.
After well recovery, one set of measurements for the field parameters of pH, specific
conductivity, and water temperature only were taken; the samples were collected, and another set
of measurements for pH, specific conductivity, and water temperature were taken. Stabilization
of pH, conductivity and temperature are required within 10% RPD under the QAP. All field
parameters for this requirement were stable within 10% RPD.
Cootit1uou ly Pumped WelJ
Wells TWN-02, TW4-22, TW4-24, and TW4-25 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. As previously noted, TW4-22, TW4-24, and TW4-25 are
chloroform investigation wells and are sampled under the chloroform program. Data for nitrate
and chloride are provided here for completeness purposes.
During review of the field data sheets, it was observed that sampling personnel consistently
recorded depth to water to the nearest 0.01 foot.
All field parameters for all wells were within the QAP required limits, as indicated below.
The field data collected during the quarter were in compliance with QAP requirements.
7
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 H. All samples were received and analyzed within the required
holding time.
3.4.3 Analytical Method Checklist
All analytical methods reported by the laboratory were checked against the required methods
enumerated in the QAP. Analytical method checks are provided in Tab H. All methods were
consistent with the requirements of the QAP.
3.4.4 Reporting Limit Evaluation
All analytical method reporting limits ("RLs") reported by the laboratory were checked against
the reporting limits enumerated in the QAP. Reporting Limit Checks are provided in Tab H. All
analytes were measured and reported to the required reporting limits, with the exception of
several samples that had increased reporting limits due to matrix interference or required dilution
due to the sample concentration. However, in all of those cases the analytical results were
greater than the reporting limit used.
3.4.5 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 duplicate pairs for all analytes regardless of
whether or not the reported concentrations are greater than 5 times the required detection limits.
However, data will be considered noncompliant only when the results are greater than 5 times
the required detection limit and the RPD is greater than 20%.
All duplicate results were within 20% RPD for the quarterly samples. The duplicate results are
provided under Tab H.
3.4.6 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 QA Manager 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-specific required limits, or that the case narrative
8
sufficiently explains any deviation from these limits. Results of this quantitative check are
provided in Tab H.
The lab QA/QC results met these specified acceptance limits.
The QAP Section 8.1.2 requires that a Matrix Spike/Matrix Spike Duplicate ("MS/MSD") pair
be analyzed with each analytical batch. 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 QAP requirement
to analyze an MS/MSD pair with each analytical batch was met. 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.
The information from the Laboratory QA/QC Summary Reports indicates that the Laboratory
Control Sample recoveries were acceptable, which indicate that the analytical system was
operating properly.
The QAP Section 8.1.2 requires that each analytical batch shall be accompanied by a reagent
blank. All analytical batches routinely contain a blank, which is a laboratory-grade water blank
sample made and carried through all analytical steps. For the Mill samples, a method blank is
prepared for all analytical methods. The information from the Laboratory QA/QC Summary
Reports indicates that the method blanks did not contain detections of any target analytes above
the Repmting Limit.
3.4. 7 Receipt Temperature Evaluation
Chain of Custody sheets were reviewed to confirm compliance with the QAP requirement in
QAP Table 1 that samples be received at 6°C or lower. Sample temperatures checks are
provided in Tab H. All samples were received within the required temperature limit.
3.4.8 Rinsate Check
Rinsate checks are provided in Tab H. A comparison of the rinsate blank sample concentration
levels to the QAP requirements -that rinsate sample concentrations be one order of magnitude
lower than that of the actual well -indicated that all of the rinsate blank analytes met this
criterion. All rinsate and DIFB blank samples were non-detect for the quarter.
4.0 INTERPRETATIONOFDATA
4.1 Interpretation of Groundwater Levels, Gradients and Flow Directions.
4.1.1 Current Site Groundwater Contour Map
9
As stated above, a listing of groundwater level readings for the current quarter (shown as depth
to groundwater in feet) is included under Tab C. The data from this tab has been interpreted
(interpolated by kriging) and plotted in a water table contour map, provided under the same tab.
The contour map is based on the current quaiter' s data for all wells.
The water level contour maps 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 is still evident and locally changes the generally
southerly perched water flow patterns. For example, northeast of the Mill site, mounding
associated with formerly used wildlife ponds disrupts the generally southwesterly flow pattern,
to the extent that locally north-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 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 ponds helped limit many constituent concentrations
within the plumes by dilution while the associated groundwater mounding increased hydraulic
gradients and contributed to plume migration. Since use of the northern ponds was discontinued
in March, 2012, increases in constituent concentrations in many wells, and decreases in hydraulic
gradients within the plumes, are attributable to reduced recharge and the decay of the associated
groundwater mound. EFRI and its consultants anticipated these changes and discussed these and
other potential effects during discussions 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, nitrate concentrations within and adjacent to the nitrate plume appear to have been
impacted to a lesser extent than chloroform and nitrate concentrations within and in the vicinity
of the chloroform 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 wildlife ponds.
10
Localized increases in concentrations of constituents such as nitrate and chloride within and near
the nitrate plume may occur even when the nitrate plume is under control based on the Nitrate
CAP requirements. Ongoing mechanisms that can be expected to increase the concentrations of
nitrate and chloride 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 zones rece1vmg
primarily low constituent concentration pond water will result in wells intercepting the
zones 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; nitrate pumping
wells TW4-22, TW4-24, TW4-25, and TWN-2; and non-pumped wells adjacent to the pumped
wells. Impacts were also expected to occur over time at wells subsequently added to the
chloroform pumping network: TW4-1, TW4-2, TW4-11, TW4-21 and TW4-37 (added during
2015); TW4-39 (added during the fourth quatter of 2016); TW4-41 (added during the second
quarter of 2018); and TW4-40 (added during the second quarter of 2019). The overall impact
was expected to be generally higher constituent concentrations in these wells over time until
mass reduction resulting from pumping and natural attenuation eventually reduces
concentrations. Short-term changes in concentrations at pumping wells and wells adjacent to
pumping wells are also expected to result from changes in pumping conditions.
In addition to changes in the flow regime caused by wildlife pond recharge, perched flow
directions are locally influenced by operation of the chloroform and nitrate pumping wells.
Well-defined cones of depression were typically evident in the vicinity of all chloroform
pumping wells except TW4-4 and TW4-37, which began pumping in the first quarter of 2010
and the second quarter of 2015, respectively. The third quarter of 2018 was the first quarter that a
well-defined cone of depression was associated with TW4-4, primarily the result of pumping at
adjacent well TW4-41.
The lack of well-defined capture associated with chloroform pumping well TW4-4 was
consistent prior to the third quarter of 2018, even though pumping since the first quarter of 2010
has depressed the water table in the vicinity of this well. The lack of a well-defined cone of
depression near TW4-4 likely resulted from 1) variable permeability conditions in the vicinity of
TW4-4, and 2) persistent relatively low water levels at adjacent well TW4-14.
Pumping of nitrate wells TW4-22, TW4-24, TW4-25, and TWN-2 began during the first quarter
of 2013. Water level patterns near these 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 elevation at TWN-7. Although positioned up-to cross-
gradient of the nitrate pumping wells, TWN-7 is also typically downgradient of TWN-3 and the
northern (upgradient) extremity of the nitrate plume. 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
11
the northern groundwater mound. These factors have reduced water level differences between
TWN-7 and nearby wells.
Capture associated with nitrate pumping is expected to continue to increase over time as water
levels decline due to pumping and to cessation of water delivery to the northern wildlife ponds.
Interaction between nitrate and chloroform pumping is expected to enhance the capture of the
nitrate pumping system. The long-term interaction between the nitrate and chloroform pumping
systems is evolving, and changes will be reflected in data collected during routine monitoring.
As discussed above, variable permeability conditions are one likely reason for the prior 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 TW 4-4. As will be
discussed belO\"'., 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 general, long-term increase in water levels
in this area that has been attributable to past wildlife pond recharge. Between the fourth quarter
of 2007 and the fourth quarter of 2009 (just prior to the start of TW4-4 pumping), water levels at
TW4-4 and TW4-6 increased by nearly 2.7 and 2.9 feet at rates of approximately 1.2 feet/year
and 1.3 feet/year, respectively. However, between the start of pumping at TW4-4 (first quarter of
2010) and the fourth quarter of 2013, the rate of increase in water level at TW4-6 was reduced to
less than 0.5 feet/year suggesting that TW 4-6 is within the hydraulic influence of TW 4-4.
Since the fourth quarter of 2013, water levels in all wells currently within the chloroform plume
south of TW4-4 (TW4-26, TW4-29, TW4-33 and TW4-40 [installed in the first quarter of 2018])
have been trending generally downward, as has the water level in TW4-6 (located just outside
the plume again this quarter). This downward trend is attributable to both reduced wildlife pond
recharge and pumping. Although water levels at some of the wells marginal to the chloroform
plume such as TW4-14, TW4-27, TW4-30 and TW4-31 were generally increasing until about the
first quarter of 2018, these water levels now appear to be relative! y stable.
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 TW 4-4 was also
influenced by the persistent, relatively low water level at non-pumping well TW4-14, located
east of TW 4-4 and TW 4-6. Although water level differences among these three wells had
12
diminished, the water level at TW4-14 was typically lower than the water level at TW4-6 and
several feet lower than the water level at TW 4-4 even though TW 4-4 has been pumping since
2010. However, since the first quarter of 2018, as a result of pumping at TW4-4l(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 5535.6 feet above mean sea level ["ft amsl"]) is more than 5 feet higher
than the water level at TW4-6 (approximately 5530.3 ft amsl), but is nearlyl foot lower than the
water level at TW4-4 (approximately 5536.5 ft. amsl). Similar to last quarter, the change is
attributable to comparatively smaller drawdowns at pumping wells TW4-4 and TW4-41.
The static water levels at wells TW4-14 and downgradient well TW4-27 (installed south of
TW4-14 in the fourth quarter of 2011) were similar (within 1 to 2 feet) until the third quarter of
2014; both appeared anomalously low. 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 (5528.4 feet amsl) is, however, lower than water
levels at adjacent wells TW4-6 (5530.3 feet amsl) and TW4-23 (5532.3 feet amsl), as shown in
the detail water level map under Tab C.
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 TW 4-27, 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 (approximately 5529.1 ft. amsl) is more than 6 feet
lower than the water level at TW4-14 (5535.6 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
J3
distribution. Past seepage from the ponds caused propagation of water level increases in all
directions including downgradient to the south. The relative hydraulic isolation of TW4-14 and
TW4-27 delayed responses at these locations. Until pumping started at TW4-41, water levels at
both these wells were consistently lower than in surrounding higher permeability materials even
though water levels in surrounding materials were generally decreasing due to reduced pond
seepage and pumping. Although water levels at TW4-14 and TW4-27 appear to have stabilized,
the previous rate of increase was higher at TW4-14 due to factors that include: closer proximity
to the northern pond seepage source and a smaller thickness of low permeability materials
separating TW 4-14 from surrounding higher permeability materials. In addition, hydraulic
gradients between TW 4-14 and surrounding higher permeability materials were relatively large
and were consistently directed toward TW4-14 prior to TW4-41 pumping. Slowing of the rates
of water level increase at TW4-14 (since 2015) and TW4-27 (since early 2014), and relative
stabilization since about the first quarter of 2018, are attributable to changes in hydraulic
gradients between these wells and surrounding higher permeability materials.
In addition, water levels in this area are affected by reduced recharge at the southern wildlife
pond and the decay of the associated groundwater mound. The decay of the mound is expected to
contribute to changes in hydraulic gradients between the low permeability materials penetrated
by TW4-14 and TW4-27 and the surrounding higher permeability materials. Because TW4-27 is
closer to the southern wildlife pond than TW4-14, changes in hydraulic gradients attributable to
decay of the southern groundwater mound are expected to impact TW4-27 sooner and to a
greater extent than TW4-14, consistent with the lower rate of increase in water levels at TW4-27,
and the earlier reduction in the rate of increase (since early 2014) as discussed above).
4.1.2 Comparison of Current Groundwater Contour Map to Groundwater Contour Map
for Previous Quarter
The groundwater contour maps for the Mill site for the previous quarter, as submitted with the
Nitrate Monitoring Report for the previous quarter, are attached under Tab D. A comparison of
the water table contour maps for the current quarter (fourth quarter of 2020) to the water table
contour maps for the previous quarter (third quarter of 2020) indicates the following: water level
changes at the majority of site wells were small ( < 1 foot); and water level contours have not
changed significantly except in the vicinities of many of the nitrate and chloroform pumping
wells. Overall, total capture is slightly larger than last quarter's.
The drawdowns at chloroform pumping wells MW-26, TW4-1, TW4-11, and TW4-37; and
nitrate pumping well TW4-22, decreased by more than 2 feet this quarter. However drawdowns
at chloroform pumping wells TW4-4, TW4-19, TW4-21 and TW4-40; and nitrate pumping wells
TW4-24 and TWN-2 increased 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 level for chloroform pumping
well TW 4-11 is 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 slightly larger than last quarter.
14
As discussed in Section 4.1.1, pumping at chloroform well TW 4-4, which began in the first
quarter of 2010, depressed the water table near TW4-4, but a well-defined cone of depression
was not clearly evident until the third quarter of 2018, likely due to variable permeability
conditions near TW4-4 and the historic persistently low water level at adjacent well TW4-14.
The expanded cone of depression associated with TW4-4 and adjacent pumping well TW4-41
since the initiation of pumping at TW 4-41 in the second quarter of 2018 has contributed to
southerly expansion of total pumping system capture. Southerly expansion of capture was
additionally enhanced in the second quarter of 2019 quarter by the initiation of pumping at TW 4-
40.
The reported water level decreases of up to 0.14 feet at Piezometers 2 and 3A may result from
cessation of water delivery to the northern wildlife ponds as discussed in Section 4.1.1 and the
consequent continuing decay of the associated perched water mound. Reported water level
decreases of up to 0.25 feet at Piezometers 4 and 5 likely result primarily from reduced recharge
at the southern wildlife pond. Reported water level decreases of approximate! y 0.19 and 0.11
feet, respectively, at TWN-1 and TWN-4 are consistent with continuing decay of the northern
groundwater mound.
The reported water level at MW-20 decreased by nearly 2.7 feet. Water level variability at this
well likely results from low permeability and variable intervals between purging/sampling and
water level measurement. The reported water level decrease at MW-20 partially compensates for
the reported increase last quarter.
Measurable water was not reported at DR-22. Although DR-22 is typically dry, measurable
water was reported in the bottom of its casing between the second quarter of 2015 and the third
quarter of 2016.
4.1.3 Hydrographs
Attached under Tab E are hydrographs showing groundwater elevation in each nitrate
contaminant investigation monitor well over time. Per the CAP, nitrate wells TWN-6, TWN-14,
TWN-16, and TWN-19 have been maintained for depth to groundwater monitoring only. These
hydrographs are also included in Tab E.
4.1.4 Depth to Groundwater Measured and Groundwater Elevation
Attached in 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.
4.2 Effectiveness of Hydraulic Containment and Capture
4.2.1 Hydraulic Containment and Control
The CAP states that hydraulic containment and control will be evaluated in part based on water
level data and in part on concentrations in wells downgradient of pumping wells TW 4-22 and
TW4-24.
15
As per the CAP, the fourth quarter of 2013 was the first quarter that hydraulic capture associated
with nitrate pumping wells TW4-22, TW4-24, TW4-25, and TWN-2 was evaluated. Hydraulic
containment and control based on water level data is considered successful per the CAP if the
entire nitrate plume upgradient of TW4-22 and TW4-24 falls within the combined capture of the
nitrate pumping wells. Capture zones based on water level contours calculated by kriging the
current quarter's water level data are provided on water level contour maps included under Tab
C. The nitrate capture zones are defined by the bounding stream tubes associated with nitrate
pumping wells. Each bounding stream tube represents a flow line parallel to the hydraulic
gradient and therefore perpendicular to the intersected water level contours. Assuming that the
stream tubes do not change over time, all flow between the bounding stream tubes associated
with a particular pumping well is presumed to eventually reach and be removed by that well.
Capture associated with chloroform pumping wells is also included on these maps because the
influence of the chloroform and nitrate pumping systems overlap.
The specific methodology for calculating the nitrate capture zones is substantially the same as
that used since the fourth quarter of 2005 to calculate the capture zones for the chloroform
program, as agreed to by the DWMRC and EFRI. The procedure for calculating nitrate capture
zones is as follows:
1) Calculate water level contours by gridding the water level data on approximately 50-foot
centers using the ordinary linear kriging method in Surfer™. Default kriging parameters
are used that include a linear variogram, an isotropic data search, and all the available
water level data for the quarter, including relevant seep and spring elevations.
2) Calculate the capture zones by hand from the kriged water level contours following the
rules for flow nets:
-From each pumping well, reverse track the stream tubes that bound the capture zone of
each well,
-maintain perpendicularity between each stream tube and the kriged water level contours.
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 well MW-4,
TW4-2, TW4-39 and TW4-41; and nitrate pumping well TW4-25 were less than two feet. Water
level decreases occurred in chloroform pumping wells MW-4 (approximately 1.6 feet); TW4-2
(approximately 1.2 feet); TW4-4 (nearly 2.9 feet); TW4-19 (approximately 4.2 feet); TW4-21
(approximately 3.8 feet); TW4-40 (approximately 2.4 feet); and TW4-41 (nearly 0.9 feet); and
in nitrate pumping wells TW4-24 (approximately 2.1 feet); TW4-25 (nearly 0.8 feet); and TWN-
2 (nearly 7.9 feet). Water level increases occurred in chloroform pumping wells MW-26 (nearly
6 feet); TW4-1 (nearly 2.6 feet); TW4-11 (nearly 3 feet); TW4-37 (approximately 10 feet); and
TW4-39 (nearly 1.7 feet); and in nitrate pumping well TW4-22 (nearly 5.6 feet). The overall
apparent combined capture area of the nitrate and chloroform pumping systems is slightly larger
than last quarter.
The capture associated with nitrate pumping wells and the eight chloroform pumping wells
added since the first quarter of 2015 is expected to generally increase over time as water levels
continue to decline due to pumping and to cessation of water delivery to the northern wildlife
ponds. Slow development of hydraulic capture is consistent with and expected based on the
relatively low permeability of the perched zone at the site. Furthermore, although the perched
16
groundwater mound has diminished, and water levels at TWN-7 have risen, the definition of
capture associated with the nitrate pumping system continues to be influenced by the remaining
perched groundwater mound and the historically relatively low water level at TWN-7.
That pumping is likely sufficient to eventually capture the entire plume upgradient of TW4-22
and TW4-24 can be demonstrated by comparing the combined average pumping rates of all
nitrate pumping wells for the current quarter to estimates of pre-pumping flow through the nitrate
plume near the locations of TW4-22 and TW4-24. The pre-pumping flow calculation presented
from the fourth quarter of 2013 through the second quarter of 2015 was assumed to represent a
steady state 'background' condition that included constant recharge, hydraulic gradients, and
saturated thicknesses; the calculation did not account for reduced recharge and saturated
thickness caused by cessation of water delivery to the northern wildlife ponds since March, 2012.
Because significant water level declines have occurred in upgradient portions of the nitrate
plume due to reduced recharge, hydraulic gradients within the plume have been reduced
independent of pumping. Changes related to reduced wildlife pond recharge have also resulted in
reduced well productivity. Generally reduced productivities of nitrate pumping well TW4-24 and
chloroform pumping well TW4-19 since the third quarter of 2014 are at least partly the result of
reduced recharge.
The pre-pumping flow through the nitrate plume near TW4-22 and TW4-24 that was presented
from the fourth quarter of 2013 through the second quarter of 2015 was estimated using Darcy's
Law to lie within a range of approximately 1.31 gpm to 2.79 gpm. Calculations were based on an
average hydraulic conductivity range of 0.15 feet per day (ft. /day) to 0.32 ft. /day (depending on
the calculation method), a pre-pumping hydraulic gradient of 0.025 feet per foot (ft. /ft.), a plume
width of 1,200 feet, and a saturated thickness (at TW4-22 and TW4-24) of 56 feet. The hydraulic
conductivity range was estimated by averaging the results obtained from slug test data that were
collected automatically by data loggers from wells within the plume and analyzed using the KGS
unconfined slug test solution available in Aqtesolve™ (see Hydro Geo Chem, Inc. [HGC],
August 3, 2005: Perched Monitoring Well Installation and Testing at the White Mesa Uranium
Mill, April Through June 2005; HGC, March 10, 2009: Perched Nitrate Monitoring Well
Installation and Hydraulic Testing, White Mesa Uranium Mill; and HGC, March 17 2009: Letter
Report to David Frydenlund, Esq, regarding installation and testing of TW4-23, TW4-24, and
TW4-25). These results are summarized in Table 6. Data from fourth quarter 2012 were used to
estimate the pre-pumping hydraulic gradient and saturated thickness. These data are summarized
in Tables 7 and 8.
The average hydraulic conductivity was estimated to lie within a range of 0.15 ft. /day to 0.32 ft.
/day. Averages were calculated four ways. As shown in Table 6 arithmetic and geometric
averages for wells MW-30, MW-31, TW4-22, TW4-24, TW4-25, TWN-2, and TWN-3 were
calculated as 0.22 and 0.15 ft. /day, respectively. Arithmetic and geometric averages for a subset
of these wells (MW-30, MW-31, TW4-22, and TW4-24) were calculated as 0.32 and 0.31
ft./day, respectively. The lowest value, 0.15 ft. /day, represented the geometric average of the
hydraulic conductivity estimates for all the plume wells. The highest value, 0.32 ft. /day,
represented the arithmetic average for the four plume wells having the highest hydraulic
conductivity estimates (MW-30, MW-31, TW4-22, and TW4-24).
17
Pre-pumping hydraulic gradients were estimated at two locations; between TW4-25 and MW-31
(estimated as 0.023 ft. /ft.), and between TWN-2 and MW-30 (estimated as 0.027 ft. /ft.). These
results were averaged to yield the value used in the calculation (0.025 ft. /ft.). The pre-pumping
saturated thickness of 56 feet was an average of pre-pumping saturated thicknesses at TW4-22
and TW4-24.
As discussed above the hydraulic gradient and saturated thickness used in the pre-pumping
calculations were assumed to represent a steady state 'background' condition that was
inconsistent with the cessation of water delivery to the northern wildlife ponds, located
upgradient of the nitrate plume. Hydraulic gradients and saturated thicknesses within the plume
have declined since nitrate pumping began as a result of two factors: reduced recharge from the
ponds, and the effects of pumping. A more representative 'background' flow condition that
accounts for reduced wildlife pond recharge was presented in Attachment N (Tab N) of the third
quarter 2015 Nitrate Monitoring report. The original pre-pumping 'background' flow range of
1.31 gpm to 2.79 gpm has been recalculated to range from 0.79 gpm to 1.67 gpm, as presented in
Table 9. This calculation is still considered conservative because the high end of the range
assumed an arithmetic average hydraulic conductivity of a subset of plume wells having the
highest conductivities. In addition, since the 'background' flow was recalculated, saturated
thicknesses and hydraulic gradients within the plume have decreased, further reducing the rate of
flow through the plume.
The cumulative volume of water removed by nitrate pumping wells TW4-22, TW4-24, TW4-25,
and TWN-2 during the current quarter was approximately 238,790 gallons. This equates to an
average total extraction rate of approximately 1.8 gpm over the 90 day quarter. This average
accounts for time periods when pumps were off due to insufficient water columns in the wells.
The current quarter's pumping of 1.8 gpm, which is larger than last quarter's 1.4 gpm, exceeds
the high end of the recalculated 'background' flow range of 0.79 gpm to 1.67 gpm.
Although TW4-22, TW4-24, TW4-25, and TWN-2 are designated nitrate pumping wells, some
chloroform pumping wells are also located within the nitrate plume because the northwest
portion of the chloroform plume commingles with the central portion of the nitrate plume.
Chloroform pumping well TW4-19 is periodically within the nitrate plume; chloroform pumping
well TW4-2I, since pumping began in 2015, is typically within the nitrate plume; and TW4-37 is
consistently within the nitrate plume. TW4-21 was outside the plume during the second quarter
of 2017; the third quarter of 2018; the first quarter of 2019; the fourth quarter of 2019; and the
first quarter of 2020. TW4-19 is outside the plume this quarter. Although periodically within the
nitrate plume, due to collapse, TW4-20 was abandoned during October, 2020.
Because chloroform pumping wells TW4-21 and TW4-37 were unambiguously within the nitrate
plume this quarter it is appropriate to include them in estimating total pumping from the nitrate
plume. fucluding TW4-21 and TW4-37, the volume of water removed by TW4-21, TW4-22,
TW4-24, TW4-25, TW4-37, and TWN-2 this quarter is approximately 407,175 gallons or
approximately 3.1gpm, which exceeds the high end of the recalculated 'background' flow range
by approximately 1.4 gpm, or a factor of approximately 1.9.
Because the arithmetic average hydraulic conductivity of a subset of plume wells having the
highest conductivities was used to calculate the high end of the 'background' flow range, the
18
high end is considered less representative of actual conditions than using the geometric average
conductivity of all of the plume wells. Therefore, nitrate pumping likely exceeds the actual flow
through the plume by more than a factor of 1.9 as calculated above. Nitrate pumping is therefore
considered adequate at the present time even with reduced productivity at TW4-24.
The CAP states that MW-5, MW-11, MW-30, and MW-31 are located downgradient of TW4-22
and TW4-24. MW-30 and MW-31 are within the plume near its downgradient edge and MW-5
and MW-11 are outside and down gradient of the plume. Per the CAP, hydraulic control based on
concentration data will be considered successful if the nitrate concentrations in MW-30 and
MW-31 remain stable or decline, and the nitrate concentrations in downgradient wells MW-5
and MW-11 do not exceed the 10 mg/L standard.
Table 5 presents the nitrate concentration data for MW-30, MW-31, MW-5 and MW-11, which
are down-gradient of pumping wells TW4-22 and TW4-24. Based on these concentration data,
the nitrate plume is under control.
The nitrate plume has not migrated downgradient to MW-5 or MW-11; nitrate at MW-11 was
detected at a concentration of approximately 0.93 mg/L; and was detected at MW-5 at a
concentration of approximately 0.19 mg/L. Between the previous and current quarters, nitrate
concentrations decreased at both MW-30 and MW-31. Nitrate in MW-30 decreased from 18.4
mg/L to 16.8 mg/Land nitrate in MW-31 decreased from 19.2 mg/L to 18.6 mg/L. Although
short-term fluctuations have occurred, nitrate concentrations in MW-30 and MW-31 have been
relatively stable, demonstrating that plume migration to the south is minimal or absent.
MW-30 and MW-31 are located at the toe of the nitrate plume which has associated elevated
chloride. Chloride is increasing at MW-31, as well as at MW-30, but at a lower rate (see Tab J
and Tab K, discussed in Section 4.2.4 ). These increases are consistent with continuing
downgradient migration of the elevated chloride associated with the nitrate plume. The increases
in chloride and relatively stable nitrate at both wells suggest a natural attenuation process that is
affecting nitrate but not chloride. A likely process that would degrade nitrate but leave chloride
unaffected is reduction of nitrate by pyrite. The likelihood of this process in the perched zone is
discussed in HGC, December 7 2012; Investigation of Pyrite in the Perched Zone, White Mesa
Uranium Mill Site, Blanding, Utah. A more detailed discussion is presented in HGC, December
11, 2017; Nitrate Corrective Action Comprehensive Monitoring Evaluation (CACME) Report,
White Mesa Uranium Mill Near Blanding, Utah.
4.2.2 Current Nitrate and Chloride Isoconcentration Maps
Included under Tab I of this Report are current nitrate and chloride iso-concentration maps for
the Mill site. Nitrate iso-contours start at 5 mg/L and chloride iso-contours start at 100 mg/L
because those values appear to separate the plumes from background. All nitrate and chloride
data used to develop these iso-concentration maps are from the current quarter's sampling
events.
4.2.3 Comparison of Areal Extent
Although the plume typically expands in some areas and contracts in others, because the plume
has generally only contracted this quarter, the plume area is smaller than last quarter. Specifically
19
the plume boundary has contracted away from MW-28 (which compensates for last quarter's
apparent westward expansion of the boundary toward MW-28); the northern portion of the
plume boundary has contracted due to decreases in concentration at TWN-2, TWN-3 and TWN-
7; and the boundary has contracted away from TW4-19. Although concentrations at MW-28
decreased this quarter, general recent expansion of the plume boundary to the west has occurred
due to increases in concentration at MW-28; however, MW-28 has remained outside the plume.
In addition, although concentrations decreased this quarter, TWN-7, which was incorporated
within the plume for the first time during the second quarter of 2018, remains within the plume.
TWN-7 has historically been located down-to cross-gradient of the northeastern (upgradient)
extremity of the plume, but migration of the plume toward TWN-7 has been slow presumably
due to the low permeability at TWN-7.
TW4-18 remained outside the plume with a concentration of approximately 3.7 mg/L. TW4-18
was encompassed by an eastward-extending 'spur' in the plume during the third quarter of 2015,
similar to an occurrence during the third quarter of 2013. Changes in nitrate concentrations near
TW 4-18 are expected to result from changes in pumping and from the cessation of water
delivery to the northern wildlife ponds. The reduction in low-nitrate recharge from the wildlife
ponds appeared to be having the anticipated effect of generally increased nitrate concentrations
in some wells downgradient of the ponds.
However, decreasing to relatively stable nitrate concentrations at most wells in the vicinity of
TW4-18 between the first quarter of 2014 and the second quarter of 2015 after previous
increases suggested that conditions in this area had stabilized. Since the second quarter of 2015,
concentrations at TW4-18 exceeded 10 mg/L only once (third quarter of 2015). Over this same
time period, concentrations at nearby wells TW4-3 and TW4-9 remained below 10 mg/L;
concentrations at TW4-5 exceeded 10 mg/L only once (first quarter of 2016); and, until the first
quarter of 2019, concentrations at TW 4-10 remained above 10 mg/L. Since the first quarter of
2019, concentrations at TW4-10 have remained below 10 mg/L.
Although increases in concentration in the area downgradient of the wildlife ponds have been
anticipated as the result of reduced dilution, the magnitude and timing of the increases are
difficult to predict due to the measured variations in hydraulic conductivity at the site and other
factors. Nitrate in the area directly downgradient (south to south-southwest) of the northern
wildlife ponds is associated with the chloroform plume, is cross-gradient of the nitrate plume as
defined in the CAP, and is within the capture zone of the chloroform pumping system. Perched
water flow in the area is to the southwest in the same approximate direction as the main body of
the nitrate plume.
Nitrate concentrations at the downgradient edge of the plume (MW-30 and MW-31) have been
relatively stable, demonstrating that nitrate plume migration to the south is minimal or absent. As
discussed in Section 4.2.1, stable nitrate at MW-30 and MW-31 is consistent with a natural
attenuation process affecting nitrate but not chloride, as elevated chloride associated with the
nitrate plume continues to migrate downgradient.
With regard to chloroform, changes in the boundary of the chloroform plume are attributable in
part to the initiation of nitrate pumping. Once nitrate pumping started, the boundary of the
chloroform plume migrated to the west toward nitrate pumping well TW4-24, and then to the
southwest to reincorporate chloroform monitoring wells TW 4-6 and TW 4-16. Concentration
increases leading to the reincorporation of these wells occurred first at TW4-24, then at TW4-16
and TW 4-6. Reduced recharge at the southern wildlife pond and decay of the associated
20
groundwater mound are also expected to influence chloroform concentrations in the vicinity of
TW4-6.
Subsequent contraction of the chloroform plume eastward away from TW4-24 and TW4-16
through the first quarter of 2016 is attributable in part to the start-up of additional chloroform
pumping wells during the first half of 2015, and reduced productivity at TW4-24. TW4-16 is
within and TW4-24 is just within the chloroform plume this quarter. In addition, due to
contraction of the plume away from TW4-6, TW4-6 has been outside the plume since the third
quarter of 2018. More details regarding the chloroform data and interpretation are included in the
Quarterly Chloroform Monitoring Report submitted under separate cover.
4.2.4 Nitrate and Chloride Concentration Trend Data and Graphs
Attached under Tab J is a table summarizing values for nitrate and chloride for each well over
time.
Attached under Tab K are graphs showing nitrate and chloride concentration plots in each
monitor well over time.
4.2.5 Interpretation of Analytical Data
Comparing the nitrate analytical results to those of the previous quarter, as summarized in the
tables included under Tab J, the following observations can be made for wells within and
immediately surrounding the nitrate plume:
a) Nitrate concentrations have increased by more than 20% in the following wells
compared to last quarter: MW-11, TW4-16, TW4-21, TW4-25 and TW4-39;
b) Nitrate concentrations have decreased by more than 20% in the following wells
compared to last quarter: MW-26, MW-28, TW4-19, TW4-24, TWN-2, TWN-4 and
TWN-7;
c) Nitrate concentrations have remained within 20% in the following wells compared to
last quarter: MW-27, MW-30, MW-31, TW4-18, TW4-22, TW4-37, TWN-1, TWN-3,
and TWN-18; and
d) MW-25, MW-29 and MW-32 remained non-detect
As indicated, nitrate concentrations for many of the wells with detected nitrate were within 20%
of the values reported during the previous quarter, suggesting that variations are within the range
typical for sampling and analytical error. The remaining wells had changes in concentration
greater than 20%. The latter includes chloroform pumping wells MW-26, TW4-19, TW4-21 and
TW4-39; nitrate pumping wells TW4-24, TW4-25 and TWN-2; and non-pumping wells MW-11,
MW-28, TW4-16, TWN-4 and TWN-7. TW4-16 is located adjacent to chloroform pumping
wells MW-26 and TW4-11; MW-11 is located immediately downgradient (south) of the plume;
and MW-28 is located immediately west of the plume.
21
Fluctuations in concentrations at pumping wells and wells adjacent to pumping wells likely
result in part from the effects of pumping as discussed in Section 4.1.1. Because of their
locations just outside (and generally downgradient) of the plume, fluctuations in concentration
can also be expected at MW-1 land MW-28. Although the concentration at MW-11 increased by
more than 20%, concentrations have remained below 1 mg/L. In addition, concentrations at MW-
26 and TWN-4 are slightly less than or slightly aboveo 1 mg/L.
MW-27, located west of TWN-2, and TWN-18, located north of TWN-3, bound the nitrate
plume to the west and north; however, TWN-7 no longer bounds to plume to the northwest (See
Figure 1-1 under Tab I). In addition, the southernmost (downgradient) boundary of the plume
remains between MW-30/MW-31 and MW-5/MW-11. Nitrate concentrations at MW-5 (adjacent
to MW-11) and MW-11 have historically been low (< 1 mg/L) or non-detect for nitrate (See
Table 5). The nitrate concentrations at MW-5 (0.19 mg/L) and MW-11 (0.93 mg/L) are
consistent with the relative stability of the downgradient margin of the plume. MW-25, MW-26,
MW-32, TW4-16, TW4-18, TW4-19, TW4-25, TW4-39, TWN-1 and TWN-4 bound the nitrate
plume to the east.
Nitrate concentrations outside the nitrate plume are typically greater than 10 mg/L at a few
locations: TW4-26 (11.9 mg/L); TW4-27 (16.7 mg/L); and TW4-28 (10.2 mg/L in the third
quarter of 2019; 7.8 mg/L this quarter). In the past concentrations at TW4-10, TW4-12 and
TW4-38 typically exceeded 10 mg/L. However TW4-10 dropped below 10 mg/L during the first
quarter of 2019; TW4-12 dropped below 10 mg/Lin the second quarter of 2019; and TW4-38
dropped below 10 mg/L during the first quarter of 2018. Concentrations at TW4-18 have also
occasionally exceeded 10 mg/L. Each of these wells is located southeast of the nitrate plume as
defined in the CAP and is separated from the plume by a well or wells where nitrate
concentrations are either non-detect, or, if detected, are less than 10 mg/L. Except for TW4-27,
which dropped more than 20%, and TW4-12, which increased more than 20%, the nitrate
concentrations at the above wells are within 20% of last quarter's concentrations.
Since 2010, nitrate concentrations at TW4-10 and TW4-18 have been above and below 10 mg/L
Concentrations were below 10 mg/L between the first quarter of 2011 and second quarter of
2013, and mostly close to or above 10 mg/L between the second quarter of 2013 and third
quarter of 2015. However, concentrations at TW4-18 have been below 10 mg/L since the third
quarter of 2015 and ( as discussed above) the concentration at TW 4-10 dropped below 10 mg/L
during the first quarter of 2019. Concentrations at nearby well TW4-5 have exceeded 10 mg/L
only twice since 2010, and concentrations at nearby wells TW4-3 and TW4-9 have remained
below 10 mg/L. Nitrate at TW4-5, TW4-10, and TW4-18 is associated with the chloroform
plume, and is within the capture zone of the chloroform pumping system. Elevated nitrate at
TW4-12, TW4-26, TW4-27, TW4-28 and TW4-38 is likely related to former cattle ranching
operations at the site. Elevated nitrate at relatively recently installed well MW-38 and at MW-20
(far cross-gradient and far downgradient, respectively, of the tailings management system at the
site) is also likely related to former cattle ranching operations.
Chloride concentrations are measured because elevated chloride (greater than 100 mg/L) is
associated with the nitrate plume. Chloride concentrations at all sampled locations this quarter
are within 20% of their respective concentrations during the previous quarter except at
chloroform pumping well TW4-39 and nitrate pumping well TW4-24. Concentration
22
fluctuations at pumping wells likely result in part from the effects of pumping as discussed in
Section 4.1.1.
TWN-7 (located upgradient [north] of the tailings management system) was positioned
historically cross-to downgradient of the upgradient (northeastern) extremities of the
commingled nitrate and chloride plumes. Recent increases in both nitrate and chloride at TWN-
7, which remains incorporated into both the nitrate and chloride plumes this quarter, likely result
from northwesterly migration of the elevated nitrate and chloride contained within the upgradient
extremities of these commingled plumes. The change in chloride at TWN-7 since last quarter is
less than 20% although nitrate decreased by more than 20%.
Piezometer PIEZ-3A was installed in the second quarter of 2016 as a replacement to piezometer
PIEZ-3. The chloride concentration at piezometer PIEZ-3A (72.8 mg/L) is more than 2 times
higher this quarter than the pre-abandonment first quarter 2016 concentration at PIEZ-3
(approximately 33 mg/L). The nitrate concentration at PIEZ-3A (approximately 13 mg/L) is also
higher this quarter than the pre-abandonment first quarter 2016 PIEZ-3 concentration
(approximately 2.2 mg/L).
4.3 Estimation of Pumped Nitrate Mass and Residual Nitrate Mass within the Plume
Nitrate mass removed by pumping as summarized in Table 2 includes mass removed by both
chloroform and nitrate pumping wells. Table 3 shows the volume of water pumped at each well
and Table 4 provides the details of the nitrate removal for each well. Mass removal calculations
begin with the third quarter of 2010 because the second quarter, 2010 data were specified to be
used to establish a baseline mass for the nitrate plume. As stated in the CAP, the baseline mass is
to be calculated using the second quarter, 2010 concentration and saturated thickness data
"within the area of the kriged 10 mg/L plume boundary." The second quarter, 2010 data set was
considered appropriate because "the second quarter, 2010 concentration peak at TWN-2 likely
identifies a high concentration zone that still exists but has migrated away from the immediate
vicinity of TWN-2."
As shown in Table 2, since the third quarter of 2010, a total of approximately 3,464 lb. of nitrate
has been removed directly from the perched zone by pumping. Prior to the first quarter of 2013,
all direct nitrate mass removal resulted from operation of chloroform pumping wells MW -4,
MW-26, TW4-4, TW4-19, and TW4-20. During the current quarter:
• A total of approximately 89 lb. of nitrate was removed by the chloroform pumping wells
and by nitrate pumping wells TW4-22, TW4-24, TW4-25, and TWN-2.
• Of the 89 lb. removed during the current quarter, approximately 47 lb. (or 53 %) was
removed by the nitrate pumping wells.
The calculated nitrate mass removed directly by pumping is slarger than last quarter's
approximately 82 lbs.
As discussed in Section 4.3.1, achievable pumping rates are expected to diminish over time as
saturated thicknesses are reduced by pumping and by cessation of water delivery to the northern
wildlife ponds. Attachment N (Tab N) of the third quarter 2015 Nitrate Monitoring report
23
provides an evaluation of reduced productivity at chloroform pumping well TW4-19 and nitrate
pumping well TW4-24.
Baseline mass and current quarter mass estimates (nitrate + nitrite as N) for the nitrate plume are
approximately 43,700 lb. and 25,875 lbs., respectively. Mass estimates were calculated within
the plume boundaries as defined by the kriged 10 mg/L isocon by 1) gridding (kriging) the
nitrate concentration data on 50-foot centers; 2) calculating the volume of water in each grid cell
based on the saturated thickness and assuming a porosity of 0.18; 3) calculating the mass of
nitrate+nitrite as N in each cell based on the concentration and volume of water for each cell; and
4) totaling the mass of all grid cells within the 10 mg/L plume boundary. Data used in these
calculations included data from wells listed in Table 3 of the CAP.
The nitrate mass estimate for the current quarter (25,875 lb) is smaller than the mass estimate for
the previous quarter (35,525 lb) by 9,650 lb. Since pumping began, calculated nitrate mass
within the plume has generally decreased at a rate that is on average higher than would be
expected based on direct mass removal by pumping. Changes in the quarterly mass estimates are
expected to result from several factors, primarily 1) nitrate mass removed directly by pumping,
2) natural attenuation of nitrate, and 3) re-distribution of nitrate within the plume and changes in
saturated thicknesses.
Nitrate mass removed by pumping and natural attenuation (expected to result primarily from
pyrite oxidation/nitrate reduction) act to lower both nitrate mass and concentrations within the
plume. Both mechanisms are expected to continuously reduce both nitrate mass and
concentrations within the plume. Reductions in saturated thickness that are not accompanied by
increases in concentration will also reduce nitrate mass within the plume.
However, redistribution of nitrate within the plume is expected to result in both increases and
decreases in concentrations at wells within the plume and therefore increases and decreases in
mass estimates based on those concentrations, thus generating 'noise' in the mass estimates. In
addition, because the sum of sampling and analytical error is typically about 20%, changes in the
mass estimates from quarter to quarter of up to 20% could result from typical sampling and
analytical error alone.
Furthermore, redistribution of nitrate within the plume and changes in saturated thicknesses will
be impacted by changes in pumping and in background conditions such as the decay of the
perched water mound associated with the northern wildlife ponds. Cessation of water delivery to
the northern wildlife ponds is expected to result in reduced saturated thicknesses and reduced
dilution, which in turn is expected to result in increased nitrate concentrations in many wells.
Because of quarter to quarter variations in factors that impact the mass estimates, only longer-
term analyses of the mass estimates that minimize the impacts of 'noise' can provide useful
information on plume mass trends. Over the long term, nitrate mass estimates are expected to
trend downward as a result of direct removal by pumping and through natural attenuation.
The decrease in the mass estimate this quarter is attributable primarily to the apparent contraction
of the plume boundary away from MW-28; to contraction of the plume boundary away from
TW 4-19; and contraction of the northern portion of the plume due to decreases in concentrations
24
at TWN-2, TWN-3 and TWN-7. The apparent contraction of the plume boundary away from
MW-28 compensated for last quarter's apparent expansion toward MW-28.
As specified in the CAP, once eight qua1ters of data were collected (starting with the first quarter
of 2013), a regression trend line was to be applied to the quarterly mass estimates and evaluated.
The trend line was to be updated quarterly and reevaluated as additional quarters of data were
collected. The evaluation was to determine whether the mass estimates were increasing,
decreasing, or stable.
As the fourth quarter of 2014 constituted the eighth quarter as specified in the CAP, the mass
estimates were plotted, and a regression line was fitted to the data and evaluated. The regression
line has been updated each quarter since the fourth quarter of 2014 as shown in Figure M.1 of
Tab M. The fitted line shows a decreasing trend in the mass estimates.
5.0 LONG TERM PUMP TEST AT TWN-02, TW4-22, TW4-24, and TW4-
25 OPERATIONS REPORT
5.1 Introduction
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 SCO dated December 12,
2012.
In addition, as a part of the investigation of chloroform contamination at the Mill site, EFRI has
been conducting a Long Term Pump Test on MW-4, TW4-19, MW-26, and TW4-20, and, since
January 31, 2010, TW4-4. In anticipation of the final approval of the GCAP, beginning on
January 14, 2015, EFRI began Jong term pumping of TW4-1, TW4-2, and TW4-11 and began
long term pumping of TW4-21 and TW4-37 on June 9, 2015. In addition, EFRI is pumping
TW4-39, TW4-40 and TW4-41. 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.
Because wells MW-4, TW4-19, MW-26, TW4-4, TW4-01, TW4-02, TW4-11, TW4-21, TW4-
37, TW4-39, TW4-40 and TW4-41 are pumping wells that may impact the removal of nitrate,
they are included in this report and any nitrate removal realized as part of this pumping is
calculated and included in the quarterly reports.
The following information documents the operational activities during the quarter.
5.2 Pumping Well Data Collection
Data collected during the quarter included the following:
• Measurement of water levels at MW-4, TW4-19, MW-26, and, commencing
regularly on March 1, 2010, TW4-4, on a weekly basis,
25
• Measurement of water levels weekly at TW4-22, TW4-24, TW4-25, and TWN-02
commencing January 28, 2013,
• Measurement of water levels weekly at TW 4-01, TW 4-02, and TW 4-11
commencing on January 14, 2015,
• Measurement of water levels weekly at TW4-21 and TW4-37 commencing on
June 9, 2015, and on a monthly basis selected temporary wells and permanent
monitoring well,
• Measurement of water levels weekly at TW4-39 commencing on December 7,
2016,
• Measurement of water levels weekly at TW4-41 commencing on April 3, 2018,
• Measurement of water levels weekly at TW4-40 commencing on May 13, 2019.
• Measurement of pumping history, including:
pumping rates
total pumped volume
operational and non-operational periods.
• Periodic sampling of pumped water for chloroform and nitrate/nitrite analysis and
other constituents
5.3 Water Level Measurements
Beginning August 16, 2003, water level measurements from chloroform pumping wells MW-4,
MW-26, and TW4-19 were conducted weekly. From commencement of pumping and regularly
after March 1, 2010 water levels in these chloroform pumping wells have been measured weekly.
From commencement of pumping in January 2013, water levels in wells TW4-22, TW4-24,
TW4-25, and TWN-02 have been measured weekly. From the commencement of pumping in
December 2016, water levels in TW4-39 have been measured; from the commencement of
pumping in April 2018 water levels in TW 4-41 have been measured and from the
commencement of pumping in May 2019 water levels in TW4-40 have been measured weekly.
Copies of the weekly Depth to Water monitoring sheets for MW-4, MW-26, TW4-19, TW4-4,
TW4-22, TW4-24, TW4-25, TWN-02, TW4-01, TW4-02, TW4-11, TW4-21, TW4-37, TW4-39,
TW 4-40, and TW 4-41 are included under Tab C.
Monthly depth to water monitoring is required for all of the chloroform contaminant
investigation wells and non-pumping wells MW-27, MW-30, MW-31, TWN-1, TWN-3, TWN-
4, TWN-7, and TWN-18. Copies of the monthly depth to Water monitoring sheets are included
under Tab C.
5.4 Pumping Rates and Volumes
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 either transferred to the Cell 1 evaporation pond or is used in the Mill process.
The pumped wells are fitted with a flow meter which records the volume of water pumped from
the well in gallons. The flow meter readings shown in Tab Care used to calculate the gallons of
water pumped from the wells each quarter as required by Section 7.2.2 of the CAP. The average
26
pumping rates and quarterly volumes for each of the pumping wells are shown in Table 3. The
cumulative volume of water pumped from each of the wells is shown in Table 4.
Specific operational problems observed with the well or pumping equipment which occurred
during the quarter are noted for each well below.
5.4.1 TW4-41
During the routine weekly check of the pumping wells on October 12, 2020, Mill Personnel
noted that TW4-41 was pumping sporadically. Mill Personnel investigated the issue and noted a
loose wire. The wire connection was repaired. No official notifications to DWMRC were
required as the issue was rectified within 24-hours of discovery.
5.4.2 TW 4-11
During the routine weekly check of the pumping wells on December 17, 2020, Mill Personnel
noted that TW 4-11 flow meter was not operating. The flow meter was replaced on December
18, 2020 within 24 hours of discovery. No official notifications to DWMRC were required as
the issue was rectified within 24-hours of discovery.
6.0 CORRECTIVE ACTION REPORT
There are no corrective actions required during the current monitoring period.
6.1 Assessment of Previous Quarter's Corrective Actions
There were no corrective actions required during the previous quarters' monitoring period.
7.0 CONCLUSIONS AND RECOMMENDATIONS
As per the CAP, the current quarter is the twenty ninth quarter that hydraulic capture associated
with nitrate pumping wells TW4-22, TW4-24, TW4-25, and TWN-2 was evaluated. While the
apparent combined capture of the nitrate and chloroform pumping systems has expanded slightly
in some areas and contracted in others, the overall capture area this quarter is slightly larger than
last quarter's.
Capture associated with nitrate pumping wells is expected to increase over time as water levels
decline due to pumping and due to cessation of water delivery to the northern wildlife ponds.
Nitrate capture is enhanced by the interaction of the nitrate pumping system with the chloroform
pumping system. Chloroform pumping wells located within or adjacent to the nitrate plume not
only increase overall capture, but account for much of the nitrate mass removed each quarter.
The long term interaction between nitrate and chloroform pumping systems is evolving as
revealed by data collected as part of routine monitoring. Slow development of hydraulic capture
by the nitrate pumping system was expected and is consistent with the relatively low
permeability of the perched zone at the site.
27
The capture associated with the nitrate pumping system has been impacted by the perched
groundwater mound and historically relatively low water levels at TWN-7. Although the perched
groundwater mound has diminished, and water levels at TWN-7 have risen, definition of capture
associated with the nitrate pumping system continues to be influenced by the remaining perched
groundwater mound and the relatively low water level at TWN-7.
Nitrate pumping is likely sufficient to eventually capture the entire nitrate plume upgradient of
TW4-22 and TW4-24 even with reduced productivity at TW4-24 since the third quarter of 2014.
Hydraulic gradients and saturated thicknesses within the plume have declined since nitrate
pumping began as a result of two factors: reduced recharge from the ponds, and nitrate pumping.
A more representative 'background' flow condition that accounts for reduced wildlife pond
recharge was presented in Attachment N (Tab N) of the third quarter, 2015 Nitrate Monitoring
report. The original pre-pumping 'background' flow range of 1.31 gpm to 2.79 gpm was
recalculated to range from 0.79 gpm to 1.67 gpm. This calculation is still considered
conservative because the high end of the calculated range assumed an arithmetic average
hydraulic conductivity of a subset of plume wells having the highest conductivities. In addition,
since the 'background' flow was recalculated, saturated thicknesses and hydraulic gradients
within the plume have decreased, further reducing the rate of flow through the plume.
The current nitrate pumping of approximately 1.8 gpm, based on water removed by TW4-22,
TW4-24, TW4-25, and TWN-2, exceeds the high end of the recalculated 'background' flow
range of 0. 79 gpm to 1.67 gpm.
If water removed from the nitrate plume by chloroform pumping wells TW4-21 and TW4-37 is
included, the current nitrate pumping of approximately 3.1 gpm exceeds the high end of the
recalculated 'background' range by approximately 1.4 gpm, or a factor of approximately 1.9.
Including TW4-37 is appropriate because this well has been within the nitrate plume consistently
since initiation of pumping in 2015. Including TW4-21 is also appropriate because this well is
again within the plume this quarter.
In addition, because the arithmetic average hydraulic conductivity of a subset of plume wells
having the highest conductivities was used in recalculating the high end of the 'background' flow
range, the high end is considered less representative of actual conditions than using the
geometric average conductivity of all of the plume wells. Therefore, nitrate pumping likely
exceeds flow through the plume by a factor greater than 1.9 times the high end of the
recalculated range. Nitrate pumping is considered adequate at the present time even with reduced
productivity at TW4-24. Furthermore, as the groundwater mound associated with former water
delivery to the northern wildlife ponds continues to decay, hydraulic gradients and saturated
thicknesses will continue to decrease, and 'background' flow will be proportionally reduced,
thereby reducing the amount of pumping needed.
First quarter, 2019 nitrate concentrations at many of the wells within and adjacent to the nitrate
plume were within 20% of the values reported during the previous quarter, suggesting that
variations are within the range typical for sampling and analytical error. Changes in
concentration greater than 20% occurred in chloroform pumping wells MW-26, TW4-19, TW4-
21 and TW4-39; nitrate pumping wells TW4-24, TW4-25 and TWN-2; and non-pumping wells
MW-11, MW-28, TW4-16, TWN-4 and TWN-7. TW4-16 is located adjacent to chloroform
28
pumping wells MW-26 and TW4-11; MW-11 is located immediately downgradient (south) of
the plume; and MW-28 is located immediately west of the plume.
Fluctuations in concentrations at pumping wells and wells adjacent to pumping wells likely
result in part from the effects of pumping as discussed in Section 4.1.1. Because of their
locations just outside and generally downgradient of the plume, fluctuations in concentration can
also be expected at MW-lland MW-28. Although the concentration at MW-11 increased by
more than 20%, concentrations have remained below 1 mg/L. In addition, concentrations at MW-
26 and TWN-4 are slightly less than or slightly above 1 mg/L.
Concentrations at MW-25, MW-29 and MW-32 remained non-detect. As discussed in Section
4.2.3, the area of the nitrate plume is smaller than last quarter, with apparent eastward
contraction of the plume boundary away from MW-28; westward contraction of the plume
boundary away from TW4-19; and contraction of the northern portion of the plume due to
decreased concentrations at TWN-2, TWN-3 and TWN-7. The apparent eastward contraction
away from MW-28 compensates for the apparent westward expansion toward MW-28 last
quarter.
MW-27, located west of TWN-2, and TWN-18, located north of TWN-3, bound the nitrate
plume to the west and north; however, TWN-7 no longer bounds the plume to the west (see
Figure 1-1 under Tab I), as the concentration at TWN-7 exceeded 10 mg/L again this quarter. In
addition, the southernmost (downgradient) boundary of the plume remains between MW-
30/MW-31 and MW-5/MW-1 l. Nitrate concentrations at MW-5 (adjacent to MW-11) and MW-
11 have historically been low ( < 1 mg/L) or non-detect for nitrate (See Table 5). The nitrate
concentration at MW-11 of approximately 0.93 mg/L is consistent with the relative stability of
the downgradient margin of the plume. MW-25, MW-26, MW-32, TW4-16, TW4-18, TW4-25,
TW4-39, TWN-1 and TWN-4 bound the nitrate plume to the east.
Although short-term fluctuations have occurred, nitrate concentrations in MW-30 and MW-31
have been relatively stable, demonstrating that plume migration is minimal or absent. Nitrate in
MW-30 decreased from 18.4 mg/L to 16.8 mg/L and nitrate in MW-31 decreased from 19.2
mg/L to 18.6 mg/L. Based on the concentration data at MW-5, MW-11, MW-30, and MW-31,
the nitrate plume is under control.
Chloride is increasing at MW-31 and at MW-30, but at a lower rate. These increases are
consistent with continuing downgradient migration of the elevated chloride associated with the
nitrate plume. The increasing chloride and relatively stable nitrate at both wells suggests a
natural attenuation process that is affecting nitrate but not chloride. A likely process that would
degrade nitrate but leave chloride unaffected is reduction of nitrate by pyrite. The likelihood of
this process in the perched zone is discussed in HGC, December 7 2012; Investigation of Pyrite
in the Perched Zone, White Mesa Uranium Mill Site, Blanding, Utah. A more detailed discussion
is presented in HGC, December 11, 2017; Nitrate Corrective Action Comprehensive Monitoring
Evaluation (CACME) Report, White Mesa Uranium Mill Near Blanding, Utah.
Nitrate mass within the plume boundary has been calculated on a quarterly basis beginning with
the first quarter of 2013. Calculated mass within the plume is expected to be impacted by factors
29
that include pumping, natural attenuation, redistribution of nitrate within the plume, and changes
in saturated thickness.
Nitrate mass removal by pumping and natural attenuation (expected to result primarily from
pyrite oxidation/nitrate reduction) act to lower nitrate mass within the plume. Reductions in
saturated thickness that are not accompanied by increases in concentration will also reduce
nitrate mass within the plume.
Changes resulting from redistribution of nitrate within the plume are expected to result in both
increases and decreases in concentrations at wells within the plume and therefore increases and
decreases in mass estimates based on those concentrations, thus generating 'noise' in the mass
estimates. Furthermore, because the sum of sampling and analytical error is typically about 20%,
changes in the mass estimates from quarter to quarter of up to 20% could result from typical
sampling and analytical error alone. Longer-term analyses of the mass estimates that minimize
the impact of these quarter to quarter variations are expected to provide useful information on
plume mass trends. Over the long term, nitrate mass estimates are expected to trend downward as
a result of direct removal by pumping and through natural attenuation.
As specified in the CAP, once eight quarters of data were collected (starting with the first quarter
of 2013), a regression trend line was to be applied to the quarterly mass estimates and evaluated.
The trend line was to be updated quarterly and reevaluated as additional quarters of data were
collected. As the fourth quarter of 2014 constituted the eighth quarter as specified in the CAP,
the mass estimates were plotted, and a regression line was fitted to the data and evaluated. The
regression line was updated this quarter as shown in Figure M. l of Tab M. The fitted line shows
a decreasing trend in the mass estimates.
During the current quarter, a total of approximately 89 lb. of nitrate was removed by the
chloroform pumping wells and by nitrate pumping wells TW4-22, TW4-24, TW4-25, and TWN-
2. Of the 89 lb. removed during the current quarter, approximately 47 lb. (or 53 %) was removed
by the nitrate pumping wells.
The baseline nitrate (nitrate+nitrite as N) plume mass calculated as specified in the CAP (based
on second quarter, 2010 data) was approximately 43,700 lb. The mass estimate for the current
quarter (25,875 lb) is smaller than the mass estimate for the previous quarter (35,525 lb) by
9,650 lb. or approximately 27 %. The current quarter's estimate is smaller than the baseline
estimate by approximately 17,825 lb. The quarterly difference is attributable primarily to the
apparent contraction of the plume boundary away from MW-28; to contraction of the plume
boundary away from TW4-19; and contraction of the northern portion of the plume due to
decreases in concentrations at TWN-2, TWN-3 and TWN-7. The apparent contraction of the
plume boundary away from MW-28 compensated for last quarter's apparent expansion toward
MW-28.
Nitrate concentrations outside the nitrate plume are typically greater than 10 mg/L at a few
locations: TW4-26 (11.9 mg/L); TW4-27 (16.7 mg/L); and TW4-28 (10.2 mg/L in the third
quarter of 2019; 7.8 mg/L this quarter). In the past concentrations at TW4-10, TW4-12 and
TW4-38 typically exceeded 10 mg/L. However TW4-10 dropped below 10 mg/L during the first
quarter of 2019; TW4-12 dropped below 10 mg/Lin the second quarter of 2019; and TW4-38
30
dropped below 10 mg/L during the first quarter of 2018. Each of these wells is located southeast
of the nitrate plume as defined in the CAP and is separated from the plume by a well or wells
where nitrate concentrations are either non-detect, or, if detected, are less than 10 mg/L. Except
for TW4-27, which dropped more than 20%, and TW4-12, which increased more than 20%, the
nitrate concentrations at the above wells are within 20% of last quarter's concentrations.
Since 2010, nitrate concentrations at TW 4-10 and TW 4-18 have been above and below 10 mg/L.
Concentrations were below 10 mg/L between the first quarter of 2011 and second quarter of
2013, and mostly close to or above 10 mg/L between the second quarter of 2013 and third
quarter of 2015. However, concentrations at TW4-18 have been below 10 mg/L since the third
quarter of 2015 and (as discussed above) the concentration at TW4-10 dropped below 10 mg/L
during the first quarter of 2019. Concentrations at nearby well TW4-5 have exceeded 10 mg/L
only twice since 2010, and concentrations at nearby wells TW4-3 and TW4-9 have remained
below 10 mg/L. Nitrate at TW4-5, TW4-10, and TW4-18 is associated with the chloroform
plume, and is within the capture zone of the chloroform pumping system. Elevated nitrate at
TW4-12, TW4-26, TW4-27, TW4-28 and TW4-38 is likely related to former cattle ranching
operations at the site. Elevated nitrate at relatively recently installed well MW-38 and at MW-20
(far cross-gradient and far downgradient, respectively, of the tailings management system at the
site) is also likely related to former cattle ranching operations.
Increases in both nitrate and chloride concentrations at wells near the northern wildlife ponds
(for example TW4-18) were anticipated as a result of reduced dilution caused by cessation of
water delivery to the northern wildlife ponds. However, decreasing nitrate concentrations at
TW4-10 and TW4-18 from the first through third quarters of 2014 after previously increasing
trends (interrupted in the first quarter of 2014) suggested that conditions in this area had
stabilized. The temporary increase in nitrate concentration at TW4-18 in the third quarter of 2015
and the generally increased nitrate at TW4-5 and TW4-10 during the three quarters following the
second quarter of 2015 suggested the continuing impact of reduced wildlife pond recharge on
downgradient wells. However, since the first quarter of 2016, concentrations at TW4-5, TW4-10
and TW4-18 have been stable to decreasing.
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 northern wildlife 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 was expected to increase many
constituent concentrations within the plumes while reducing hydraulic gradients and rates of
plume migration. Reduced recharge and decay of the groundwater mound associated with the
southern wildlife pond may also have an impact on water levels and concentrations at wells
within and marginal to the downgradient (southern) extremity of the chloroform plume.
The net impact of reduced wildlife pond recharge is expected to be beneficial even though
temporarily higher concentrations were also expected until continued mass reduction via
pumping and natural attenuation ultimately reduces concentrations. Temporary increases in
nitrate concentrations are judged less important than reduced nitrate migration rates. The actual
31
impacts of reduced recharge on concentrations and migration rates will be defined by continued
monitoring.
Nitrate mass removal from the perched zone was increased substantially by the start-up of nitrate
pumping wells TW4-22, TW4-24, TW4-25, and TWN-2 during the first quarter of 2013.
Continued operation of these wells is therefore recommended. Pumping these wells, regardless
of any short term fluctuations in concentrations detected at the wells, helps to reduce
downgradient nitrate migration by removing nitrate mass and reducing average hydraulic
gradients, thereby allowing natural attenuation to be more effective. Continued operation of the
nitrate pumping system is expected to eventually reduce nitrate concentrations within the plume
and to further reduce or halt downgradient nitrate migration.
8.0 ELECTRONIC DATA FILES AND FORMAT
EFRI has provided to the Director an electronic copy of all laboratory results for groundwater
quality monitoring conducted under the nitrate contaminant investigation during the quarter, in
Comma Separated Values ("CSV") format. A copy of the transmittal e-mail is included under
Tab L.
32
9.0 SIGNATURE AND CERTIFICATION
This document was prepared by Energy Fuels Resources (USA) Inc.
Energy Fuels Resources (USA) Inc.
By:
Scott Bakken Digitally signed by Scott Bakken
Date: 2021.02.18 10:45:23 -07'00'
Scott A. Bakken Date
Vice President, Regulatory Affairs
33
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
Bakken
Scott Bakken
Digitally signed by Scott
Bakken
Date: 2021.02.18
10:46:03 -07'00'
Vice President, Regulatory Affairs
Energy Fuels Resources (USA) Inc.
34
Tables
Table 1
Summary of Well Sampling and Constituents for the Period .
Sample Collection
Well D.ate Date of Lab Report
Piezometer 01 11/13/2020 12/1/2020
Piezometer 02 11/13/2020 12/1/2020
Piezometer 03A 11/13/2020 12/1/2020
TWN-01 11/12/2020 12/1/2020
TWN~oz J J/,12/2620 121,1/2020
TWN-03 11/13/2020 12/1/2020
TWN-04 11/12/2020 12/1/2020
TWN-07 11/13/2020 12/1/2020
TWN-18 11/12/2020 12/1/2020
TWN-18R 11/12/2020 12/1/2020
TW4-22 JOt28/2020 I l/'1 3/2020
TW4-24 U!)/2,8/2020 ll/13/2020
TW4-2S IQ12812020 11/13/2©20
TWN-60 11/12/2020 12/1/2020
TW4-60 10/28/2020 11/13/2020
TWN-65 11/12/2020 12/1/2020
Note: All wells were sampled for Nitrate and Chloride.
Multiple dates shown for a single laboratory depict resubmission dates for the data. Resubmissions were required to correct reporting errors.
Dates in Italics are the original laboratory submission dates.
TWN-60 is a DI Field Blank.
TWN-65 is a duplicate of TWN-18
TW4-60 is the chloroform program DI Field Blank.
Continuously pumped well. 0••
Table 2
Nitrate Mass Removal Per Well Per Quarter
Quart MW-4 MW-26 TW4-19 TW4-20 TW4-4 TW4-22 TW4-24 TW4-25 TWN-02 TW4-01 TW4-02 TW4-ll TW4-21 TW4-37 TW4-39 TW4-40 TW4-41 Qtr. er Totals ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
Q3 2010 3.20 0.3 5.8 1.7 4.7 NA NA NA NA NA NA NA NA NA NA NA NA 15.69
Q4 2010 3.76 0.4 17.3 1.4 5.1 NA NA NA NA NA NA NA NA NA NA NA NA 27.97
QI 2011 2.93 0.2 64.5 1.4 4.3 NA NA NA NA NA NA NA NA NA NA NA NA 73.30
Q2 2011 3.51 0.1 15.9 2.7 4.7 NA NA NA NA NA NA NA NA NA NA NA NA 27.01
Q3 2011 3.49 0.5 3.5 3.9 5.4 NA NA NA NA NA NA NA NA NA NA NA NA 16.82
Q4 2011 3.82 0.8 6.2 2.5 6.4 NA NA NA NA NA NA NA NA NA NA NA NA 19.71
QI 2012 3.62 0.4 0.7 5.0 6.0 NA NA NA NA NA NA NA NA NA NA NA NA 15.86
Q2 2012 3.72 0.6 3.4 2.1 5.2 NA NA NA NA NA NA NA NA NA NA NA NA 15.03
Q3 2012 3.82 0.5 3.6 2.0 4.7 NA NA NA NA NA NA NA NA NA NA NA NA 14.67
Q4 2012 3.16 0.4 5.4 1.8 4.2 NA NA NA NA NA NA NA NA NA NA NA NA 14.92
QI 2013 2.51 0.4 14.1 1.4 3.6 8. l 43.4 7.5 14.8 NA NA NA NA NA NA NA NA 95.73
Q2 2013 2.51 0.4 5.6 1.6 3.4 10.7 37.1 6.4 23.9 NA NA NA NA NA NA NA NA 91.71
Q3 2013 2.97 0.4 48.4 1.4 3.8 6.3 72.8 6.9 33.4 NA NA NA NA NA NA NA NA 176.53
Q4 2013 3.08 0.3 15.8 1.6 3.9 9.4 75.2 6.4 46.3 NA NA NA NA NA NA NA NA 162.07
Ql 2014 2.74 0.4 4.1 1.2 3.6 11.2 60.4 2.3 17.2 NA NA NA NA NA NA NA NA 103.14
Q2 2014 2.45 0.3 3.3 0.9 3.0 9.5 63.4 1.3 17.8 NA NA NA NA NA NA NA NA 101.87
Q3 2014 2.31 0.1 4.1 0.6 3.1 8.5 56.2 1.6 16.4 NA NA NA NA NA NA NA NA 92.99
Q4 2014 2.67 0.2 7.8 1.0 3.8 11.0 53.2 0.9 28.0 NA NA NA NA NA NA NA NA 108.57
QI 2015 3.67 0.5 4.3 1.3 2.4 12.7 26.7 8.6 19.2 1.45 1.07 0.72 NA NA NA NA NA 82.61
Q2 2015 1.28 0.2 0.6 0.9 3.6 9.1 16.6 0.9 21.4 1.22 0.79 0.37 3.4 8.6 NA NA NA 68.86
Q3 2015 3.58 0.3 11.3 1.4 3.5 13.3 14.0 l.7 20.2 1.24 0.68 0.29 15.4 31.9 NA NA NA 118.63
Q4 2015 3.68 0.2 10.0 0.8 3.1 11.1 26.6 1.7 17.5 0.3 0.9 0.3 16.1 32.3 NA NA NA 124.50
QI 2016 3.91 0.23 15.28 1.23 3.21 6.36 24.30 0.81 34.33 0.02 0.93 0.22 15.29 26.45 NA NA NA 132.55
Q22016 3.66 0.21 1.31 1.48 3.36 12.92 13.17 I.OJ 19.24 0.02 1.15 0.25 14.46 27.76 NA NA NA 99.98
Q3 2016 3.30 0.22 9.08 1.15 3.02 11.33 14.86 1.56 12.47 0.72 0.59 0.22 15.20 27.42 NA NA NA 101.12
Q4 2016 3.48 0.18 8.76 1.23 1.79 12.14 26.49 1.02 12.14 0.10 1.00 0.23 14.68 22.20 0.62 NA NA 106.06
QI 2017 3.19 0.17 10.23 1.36 1.35 14.02 34.16 0.02 10.35 0.63 0.79 0.20 8.02 26.16 5.54 NA NA 116.19
Q2 2017 2.94 0.20 0.22 1.02 1.37 13.99 17.58 0.83 8.88 0.87 0.77 0.19 4.85 24.26 2.15 NA NA 80.12
Q3 2017 3.65 0.36 1.05 1.31 1.29 13.56 18.55 1.27 9.31 0.73 0.82 0.18 18.24 20.81 2.23 NA NA 93.37
Q4 2017 4.67 0.23 0.34 1.06 1.32 15.89 28.04 1.26 10.37 0.68 0.47 0.17 17.84 22.35 1.51 NA NA 106.21
QI 2018 3.92 0.35 7.89 1.13 1.18 12.47 36.31 2.18 7.09 0.51 0.40 0.17 15.54 21.22 1.65 NA NA 111.99
Q2 2018 3.94 0.20 0.46 1.16 0.96 14.07 14.89 1.12 7.22 0.40 0.47 0.16 13.73 19.96 1.38 NA 4.02 84.14
Q3 2018 3.63 0.60 2.25 0.85 0.78 9.82 14.99 0.75 6.48 0.35 0.60 0.13 0.22 16.42 1.69 NA 2.30 61.86
Q4 2018 3.81 0.39 0.21 1.04 0.77 15.27 32.56 0.61 6.30 0.38 0.45 0.14 15.43 17.38 1.97 NA 1.78 98.49
Qi 2019 4.71 0.41 6.38 0.82 I.OJ 15.69 32.04 0.48 7.10 0.40 0.53 0.15 9.25 19.49 0.85 NA 1.79 101.08
Q2 2019 4.07 0.57 7.53 1.08 1.24 16.15 14.74 0.60 16.35 0.11 0.51 0.15 15.61 16.91 2.42 2.4 1.26 101.72
Q3 2019 3.74 0.62 0.28 1.17 0.77 14.95 16.54 0.40 8.01 0.13 0.56 0.12 13.26 14.55 0.54 3.3 1.25 80.19
Q4 2019 3.59 0.18 0.44 0.68 0.78 12.02 28.83 0.60 5.17 0.30 0.40 0.12 5.55 14.20 0.41 2.6 1.08 76.97
Ql 2020 5.33 0.24 8.16 0.78 0.55 11.91 26.73 0.43 4.44 0.38 0.67 0.11 7.95 15.48 0.29 2.5 0.88 86.86
Q2 2020 4.28 0.62 1.30 6.08 0.93 12.77 20.05 0.64 4.04 0.04 0.43 0.13 14.26 15.39 1.56 2.4 0.98 85.95
03 2020 3.48 0.08 14.96 0.00 0.85 12.46 17.40 0.70 3.05 0.18 0.39 0.11 10.46 13.95 0.80 2.1 0.75 81.69
Table 2
Nitrate Mass RemovaJ Per Well Per 4 Ouarter
'
MW-4 MW-2§ TW4-19 TW4-20 TW4-4 TW4-22 TW4-24 'rw4-25 TWN-02 TW4-01 TW4-02 TW4-1J TW<i-21 TW4-37 TW'4-39 TW440 TW4-4I Qtr.
Quarter Totals (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) {1bs.) (lbs.) (lbs.) (lbs.)' (lbs.) (lbs.) (lbs.)· (lbs.) (lbs.) (lbs.) (lb.s.) (lbs:) (lbs.)
Q4 2020 3.52 0.87 1.33 0.00 0.85 12.38 31.15 1.18 2.57 0.33 0.28 0.08 14.56 14.69 2.75 1.7 0.93 89.15
Well
Totals 145.3 15.0 353.2 63.4 118.8 381.1 1008.9 63.7 470.9 11.4 15.7 4.9 279.2 469.8 28.4 17.1 17.0 3463.86
(pounds)
Table 3 Well Pumping Rates and Volumes
Pumping Well Volume of Water Pumped
Name During the Quarter (gals) Average Pump Rate (gom)
MW-4 91258.6 4.0
MW-26 28934.5 13.5
TW4-19 144512.0 16.9
TW4-4 15061.5 16.2
TWN-2 25682.1 16.9
TW4-22 22866.1 17.6
TW4-24 103987.2 15.0
TW4-25 86254.4 11.6
TW4-01 9318.7 13.6
TW4-02 14582.9 16.2
TW4-11 1394.6 16.1
TW4-21 107061.2 16.9
TW4-37 61323.9 18.0
TW4-39 46794.2 18.0
TW4-40 77535.9 18.0
TW4-41 17765.7 5.9
Table4
Table 4 Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
-----MW-4 MW-26
Total ' Total
Pumped Total Pumped Total Total Total Pumped Cone Cone Pumped Total Total
Quarter (gal) Cone (mg/L) Cone (ug/L) (liters) Total (ug) (grams) (pounds) (gal) (mg/L) (ug/L) (liters) Total (ug) (grams) (pounds)
Q3 2010 79859.1 4.80 4800 302266.7 1450880129 1450.9 3.20 63850.0 0.60 600 241672.3 145003350 145 0.32
Q4 2010 90042.2 5.00 5000 340809.7 1704048635 1704.0 3.76 60180.0 0.70 700 227781.3 159446910 159 0.35
Ql 2011 76247.6 4.60 4600 288597.2 1327546964 1327.5 2.93 55130.0 0.50 500 208667.1 104333525 104 0.23
Q2 2011 85849.3 4.90 4900 324939.6 1592204042 1592.2 3.51 55800.6 0.30 300 211205.3 6.34E+07 63 0.14
Q3 2011 85327.7 4.90 4900 322965.3 1582530188 1582.5 3.49 65618.0 0.90 900 248364.1 223527717 224 0.49
Q4 2011 89735.0 5.10 5100 339647.0 1732199573 1732.2 3.82 50191.3 2.00 2000 189974.l 379948141 380 0.84
Ql 2012 90376.4 4.80 4800 342074.7 1641958435 1642.0 3.62 31440.1 1.70 1700 119000.8 202301323.5 202 0.45
Q2 2012 90916.5 4.90 4900 344118.8 1686181940 1686.2 3.72 26701.2 2.50 2500 101064.1 252660294.3 253 0.56
Q3 2012 91607.0 5.00 5000 346732.5 1733662475 1733.7 3.82 25246.0 2.60 2600 95556.1 248445886 248 0.55
Q42012 78840.0 4.80 4800 298409.4 1432365120 1432.4 3.16 30797.0 1.46 1460 116566.6 170187301. 7 170 0.38
Ql 2013 62943.7 4.78 4780 238241.9 1138796304 1138.8 2.51 22650.7 2.27 2270 85732.9 194613681.9 195 0.43
Q2 2013 71187.3 4.22 4220 269443.9 1137053387 1137.1 2.51 25343.4 2.11 2110 95924.8 202401262.6 202 0.45
Q3 2013 72898.8 4.89 4890 275922.0 1349258375 1349.3 2.97 25763.0 1.98 1980 97513.0 193075650.9 193 0.43
Q42013 70340.4 5.25 5250 266238.4 1397751674 1397.8 3.08 24207.6 1.38 1380 91625.8 126443557 .1 126 0.28
Ql 2014 69833.8 4.70 4700 264320.9 1242308385 1242.3 2.74 23263.1 2.12 2120 88050.8 186667767 187 0.41
Q2 2014 71934.9 4.08 4080 272273.6 1110876274 1110.9 2.45 23757.5 1.42 1420 89922.1 127689435.3 128 0.28
Q3 2014 74788.2 3.70 3700 283073.3 1047371347 1047.4 2.31 24062.4 0.70 700 91076.2 63753328.8 64 0.14
Q4 2014 63093.0 5.07 5070 238807.0 1210751515 1210.8 2.67 21875.8 0.93 934 82799.9 77335109.4 77 0.17
Ql 2015 76454.3 5.75 5750 289379.5 1663932272 1663.9 3.67 24004.9 2.68 2680 90858.5 243500904.6 244 0.54
Q2 2015 60714.7 2.53 2530 229805.1 581407002.9 581.4 1.28 27804.6 0.85 845 105240.4 88928147.3 89 0.20
Q3 2015 89520.8 4.79 4790 338836.2 1623025532 1623.0 3.58 21042.0 1.75 1750 79644.0 139376947.5 139 0.31
Q4 2015 99633.4 4.43 4430 377112.4 1670608016 1670.6 3.68 19355.6 1.11 1110 73260.9 81319650.1 81 0.18
Ql 2016 90882.1 5.15 5150 343988.7 1771542055 1771.5 3.91 19150.8 1.45 1450 72485.8 105104378.1 105 0.23
Q2 2016 96540.5 4.54 4540 365405.8 1658942298 1658.9 3.66 22105.7 1.12 1120 83670.1 93710483.4 94 0.21
Q3 2016 79786.4 4.95 4950 301991.5 1494858044 1494.9 3.30 17149.5 1.57 1570 64910.9 101910046.3 102 0.22
Q4 2016 85414.0 4.88 4880 323292.0 1577664911 1577.7 3.48 18541.6 1.18 1180 70180.0 82812348.1 83 0.18
Ql 2017 76642.3 4.99 4990 290091.1 1447554616 1447.6 3.19 26107.0 0.768 768 98815.0 75889916.2 76 0.17
Q2 2017 72299.8 4.88 4880 273654.7 1335435146 1335.4 2.94 25921.8 0.922 922 98114.0 90461120.0 90 0.20
Q3 2017 95349.3 4.59 4590 360897.1 1656517691 1656.5 3.65 27489.9 1.56 1560 104049.3 162316863.5 162 0.36
Q42017 106679.8 5.25 5250 403783.0 2119860976 2119.9 4.67 26445.8 1.04 1040 100097.4 104101247.1 104 0.23
Ql 2018 105060.4 4.47 4470 397653.6 1777511655 1777.5 3.92 27004.7 1.57 1570 102212.8 160474079.5 160 0.35
Q2 2018 101786.2 4.64 4640 385260.8 1787609959 1787.6 3.94 26654.7 0.90 901 100888.0 90900123.6 91 0.20
Q3 2018 95480.5 4.55 4550 361393.8 1644341817.5 1644.3 3.63 25536.1 2.80 2800 96654.1 270631587.8 271 0.60
Q4 2018 102844.8 4.44 4440 389267.5 1728347833.9 1728.3 3.81 23791.3 1.96 1960 90050.1 176498138.2 176 0.39
Ql 2019 111746.9 5.05 5050 422961.9 2135957801.0 2136.0 4.71 26798.5 1.85 1850 101432.3 187649796.6 188 0.41
Q2 2019 94540.7 5.16 5160 357836.5 1846436595.4 1846.4 4.07 24050.2 2.83 2830 91030.0 257614919.8 258 0.57
Q3 2019 95517.8 4.69 4690 361534.9 1695598554.4 1695.6 3.74 24181.1 3.08 3080 91525.5 281898427.6 282 0.62
Q4 2019 99220.8 4.34 4340 375550.9 1629890816.6 1629.9 3.59 22384.8 0.977 977 84726.5 82777759.2 83 0.18
Ql 2020 102597.0 6.22 6220 388329.6 2415410391.9 2415.4 5.33 24107.0 1.17 1170 91245.0 106756644.2 107 0.24
Table4
Table 4 Quarterly Calculation or Nitrate Removed and Total Volume or Water Pumped
MW-4 -_MW·26
Total Tot&I
pum~ Tdfal.Pumpcd Tomi Total Total Pumped Gano e~nc P-0mped ·ro~1 Tqtat
Quartor teal} €one{~} Co.oew~_) (l~~~i'S) "' _ T~l(u_m (griirri~) (poµn4s} (Qpl) (ti!S/Y ~> jli~~l --Tili'.fill ~u:9j, _(~s)_ (pounds)
Q22020 101850.7 5.04 5040 385504.9 1942944502.7 1942.9 4.28 25418.4 2.93 2930 96208.6 281891326.9 282 0.62
Q32020 84607.8 4.93 4930 320240.6 1578786151.6 1578.8 3.48 23663.7 0.416 416 89567.1 37259915.5 37 0.08
Q4 2020 91258.6 4.62 4620 345413.8 1595811760.6 1595.8 3.52 28934.5 3.620 3620 109517.1 396451838. 7 396 0.87
Totals Since
Q3 2010 3632250.5 145.3 1233521.92 15.0
Table4
Table 4 Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
TW4-19 " TW4-20
Total
Total Pumped Cone Cone Pumped Total Total Total Pumped Cone Cone Total Pumped Total
Quarter (gal) (mg/L) (ug/L) (liters) Total (ug) (grams) (pounds} (gal) (mg/L} (ug/L} (liters) Total (ug) Total (grams) (pounds)
Q3 2010 116899.2 5.90 5900 442463.5 2610534485 2611 5.76 39098.3 5.30 5300 147987.1 784331447.2 784 1.73
Q42010 767970.5 2.70 2700 2906768.3 7848274525 7848 17.30 36752.5 4.60 4600 139108.2 639897777.5 640 1.41
Q12011 454607.9 17.00 17000 1720690.9 29251745326 29252 64.49 37187.5 4.40 4400 140754.7 619320625 619 1.37
Q2 2011 159238.9 12.00 12000 602719.2 7232630838 7233 15.95 67907.7 4.80 4800 257030.6 1233747094 1234 2.72
Q3 2011 141542.6 3.00 3000 535738.7 1607216223 1607 3.54 72311.2 6.50 6500 273697.9 1779036298 1779 3.92
Q4 2011 147647.2 5.00 5000 558844.7 2794223260 2794 6.16 72089.3 4.20 4200 272858.0 1146003602 1146 2.53
Ql 2012 148747.0 0.60 600 563007.4 337804437 338 0.74 76306.0 7.90 7900 288818.2 2281663859 2282 5.03
Q2 2012 172082.0 2.40 2400 651330.5 1563193161 1563 3.45 22956.4 11.00 11000 86890.1 955790963.1 956 2.11
Q3 2012 171345.0 2.50 2500 648540.8 1621352063 1621 3.57 22025.0 10.80 10800 83364.6 900337950 900 1.98
Q4 2012 156653.0 4.10 4100 592931.6 2431019581 2431 5.36 20114.0 11.00 11000 76131.5 837446390 837 1.85
Ql 2013 210908.0 7.99 7990 798286.8 6378311372 6378 14.06 18177.0 9.07 9070 68799.9 624015501.2 624 1.38
Q2 2013 226224.0 2.95 2950 856257.8 2525960628 2526 5.57 20252.4 9.76 9760 76655.3 748156059.8 748 1.65
Q3 2013 329460.1 17.60 17600 1247006.5 21947314022 21947 48.39 19731.0 8.65 8650 74681.8 645997872.8 646 1.42
Q4 2013 403974.0 4.70 4700 1529041.6 7186495473 7186 15.84 19280.2 9.64 9640 72975.6 703484369.5 703 1.55
Ql 2014 304851.0 1.62 1620 1153861.0 1869254877 1869 4.12 18781.6 7.56 7560 71088.4 537427971.4 537 1.18
Q2 2014 297660.0 1.34 1340 1126643.1 1509701754 1510 3.33 18462.4 5.95 5950 69880.2 415787094.8 416 0.92
Q3 2014 309742.0 1.60 1600 1172373.5 1875797552 1876 4.14 17237.9" 4.30 4300 65245.5 280555441.5 281 0.62
Q42014 198331.0 4.72 4720 750682.8 3543222981 3543 7.81 16341.8 7.67 7670 61853.7 474417978.7 474 1.05
Ql 2015 60553.0 8.56 8560 229193.1 1961892979 1962 4.33 15744.7 9.80 9800 59593.7 584018157.1 584 1.29
Q2 2015 75102.8 0.92 916 284264.1 260385913.8 260 0.57 18754.1 5.76 5760 70984.3 408869386.6 409 0.90
Q3 2015 116503.9 11.60 11600 440967.3 5115220233 5115 11.28 17657.3 9.27 9270 66832.9 619540802.2 620 1.37
Q4 2015 112767.7 10.6 10600 426825.7 4524352892 4524 9.97 15547.4 6.23 6230 58846.9 366616243.1 367 0.81
Q12016 116597.0 15.7 15700 441319.6 6928718427 6929 15.28 14353.5 10.30 10300 54328.0 559578374.3 560 1.23
Q2 2016 123768.0 1.27 1270 468461.9 594946587.6 595 1.31 15818.3 11.20 11200 59872.3 670569373.6 671 1.48
Q3 2016 103609.0 10.5 10500 392160.1 4117680683 4118 9.08 12186.6 11.30 11300 46126.3 521226975.3 521 1.15
Q42016 104919.4 10.0 10000 397119.9 3971199290 3971 8.76 12879.6 11.40 11400 48749.3 555741860.4 556 1.23
Ql 2017 110416.7 11.1 11100 417927.2 4638992025 4639 10.23 13552.8 12.00 12000 51297.3 615568176 616 1.36
Q2 2017 109943.0 0.243 243 416134.3 101120624 101 0.22 12475.3 9.76 9760 47219.0 460857542.5 461 1.02
Q3 2017 112626.4 1.12 1120 426290.9 477445834.9 477 1.05 14556.8 10.80 10800 55097.5 595052870.4 595 1.31
Q4 2017 108891.2 0.38 377 412153.2 155381753.4 155 0.34 14271.0 8.91 8910 54015.7 481280198.9 481 1.06
Ql 2018 109856.3 8.61 8610 415806.1 3580090482 3580 7.89 14258.4 9.50 9500 53968.0 512696418 513 1.13
Q2 2018 111271.4 0.49 494 421162.2 208054151.0 208 0.46 13367.6 10.40 10400 50596.4 526202206.4 526 1.16
Q3 2018 105821.8 2.55 2550 400535.S 1021365558.2 1021 2.25 12443.6 8.14 8140 47099.0 383385763.5 383 0.85
Q4 2018 107197.4 0.233 233 405742.2 94537923.0 95 0.21 12841.1 9.72 9720 48603.6 472426637.2 472 1.04
Ql 2019 116132.8 6.58 6580 439562.6 2892322223.8 2892 6.38 14623.9 6.70 6700 55351.3 370853777.7 371 0.82
Q2 2019 100704.0 8.96 8960 381164.6 3415235174.4 3415 7.53 13439.2 9.59 9590 50867.4 487818097 .5 488 1.08
Q3 2019 101026.8 0.332 332 382386.4 126952297.4 127 0.28 13787.0 10.20 10200 52183.8 532274709.0 532 1.17
Q4 2019 98806.8 0.535 535 373983.7 200081299.8 200 0.44 8317.7 9.75 9750 31482.5 306953952.3 307 0.68
Ql 2020 96857.9 10.1 10100 366607.2 3702732230.2 3703 8.16 9505.1 9.81 9810 35976.6 352930585.8 353 0.78
Table4
Table 4 Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
TW~l.9 TW4-20
Total
Total Pu~ ~one Cone Pumped Total Total Total Pumped Cone Cone Total Pumped Total
Quart.er (ga_!) '.(mg/LJ (ug/L) (liters) Total (ug) (grams) (poUJ!dS) (gal) (mg/L) (ug/L) (liters) Total (Ug) Total (_grams) (pounds)
022020 136619.7 1.1 1140 517105.6 589500343.5 590 1.30 100713.8 7.23 7230 381201.6 2756087708.6 2756 6.08
Q32020 154514.4 11.6 11600 584837.0 6784109246.4 6784 14.96 12476.2 Well collapsed and not sampled
Q42020 144512.0 1.10 1100 546977.9 601675712.0 602 1.33 Well collapsed and not sampled
Totals Since
Q3 2010 7356902.83 353.2 1018583.08 63.4
Table4
Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
TW4-4 TW4-22
Total Total
Pumped Cone Cone Total Pumped Total Total Pumped Cone Cone Total Pumped Total Total
Quarter (gal) (mg/l) (ug/l) (liters) Total (ug) (grams) (pounds) (gal) (mg/L) (ug/L) (liters) Total (ug) (grams) (pounds)
Q3 2010 76916.8 7.30 7300 291130.1 2125249642.4 2125.25 4.69 NA NA NA NA NA NA NA
Q4 2010 86872.1 7.10 7100 328810.9 2334557379.4 2334.56 5.15 NA NA NA NA NA NA NA
Ql 2011 73360.0 7.00 7000 277667.6 1943673200.0 1943.67 4.29 NA NA NA NA NA NA NA
Q2 2011 80334.6 7.00 7000 304066.5 2128465227 .0 2128.47 4.69 NA NA NA NA NA NA NA
Q3 2011 97535.0 6.60 6600 369170.0 2436521835.0 2436.52 5.37 NA NA NA NA NA NA NA
Q42011 109043.5 7.00 7000 412729.6 2889107532.5 2889.11 6.37 NA NA NA NA NA NA NA
Ql 2012 101616.8 7.10 7100 384619.6 2730799074.8 2730.80 6.02 NA NA NA NA NA NA NA
Q2 2012 87759.1 7.10 7100 332168.2 2358394173.9 2358.39 5.20 NA NA NA NA NA NA NA
Q3 2012 80006.0 7.10 7100 302822.7 2150041241.0 2150.04 4.74 NA NA NA NA NA NA NA
Q4 2012 71596.0 7.00 7000 270990.9 1896936020.0 1896.94 4.18 NA NA NA NA NA NA NA
Ql 2013 58716.8 7.36 7360 222243.1 1635709127. 7 1635.71 3.61 16677.4 58.0 58000.0 63124.0 3661189622.0 3661.2 8.07
Q2 2013 65603.4 6.30 6300 248308.9 156434587 4. 7 1564.35 3.45 25523.2 50.2 50200.0 96605.3 4849586662.4 4849.6 10.69
Q3 2013 63515.4 7.22 7220 240405.8 l 735729796.6 1735.73 3.83 25592.9 29.7 29700.0 96869.1 2877013057.1 2877.0 6.34
Q42013 60233.6 7.84 7840 227984.2 1787395939.8 1787.40 3.94 24952.2 45.2 45200.0 94444.1 4268872280.4 4268.9 9.41
Ql 2014 58992.9 7.28 7280 223288.1 1625537560.9 1625.54 3.58 24532.0 54.6 54600.0 92853.6 5069807652.0 5069.8 11.18
Q2 2014 60235.3 5.91 5910 227990.6 134 7 424508.1 1347.42 2.97 24193.9 47.2 47200.0 91573.9 4322288622.8 4322.3 9.53
Q3 2014 69229.4 5.30 5300 262033.3 1388776378.7 1388.78 3.06 24610.9 41.5 41500.0 93152.3 3865818644.8 3865.8 8.52
Q42014 64422.6 7.02 7020 243839.5 1711753577.8 1711.75 3.77 23956.9 54.9 54900.0 90676.9 4978159970.9 4978.2 10.97
Ql 2015 36941.3 7.70 7700 139822.8 1076635717.9 1076.64 2.37 22046.9 69.2 69200.0 83447.5 5774568141.8 5774.6 12.73
Q2 2015 68162.8 6.33 6330 257996.2 1633115933.3 1633.12 3.60 23191.6 47.1 47100.0 87780.2 4134447702.6 4134.4 9.11
Q3 2015 64333.0 6.45 6450 243500.4 1570577612.3 1570.58 3.46 24619.9 64.7 64700.0 93186.3 6029155001.1 6029.2 13.29
Q42015 59235.1 6.27 6270 224204.9 1405764431.4 1405.76 3.10 23657.6 56.1 56100.0 89544.0 5023419297.6 5023.4 11.07
Qt 2016 57274.0 6.71 6710 216782.1 1454607823.9 1454.61 3.21 24517.8 31.1 31100.0 92799.9 2886076050.3 2886.1 6.36
Q2 2016 61378.0 6.56 6560 232315.7 1523991188.8 1523.99 3.36 26506.3 58.4 58400.0 100326.3 5859058577.2 5859.1 12.92
Q3 2016 50104.2 7.22 7220 189644.4 1369232546.3 1369.23 3.02 22144.1 61.3 61300.0 83815.4 5137885154.1 5137.9 11.33
Q42016 31656.0 6.77 6770 119818.0 811167589.2 811.17 1.79 23646.8 61.5 61500.0 89503.1 5504442987 .0 5504.4 12.14
Ql 2017 23526.8 6.87 6870 89048.9 611766204.1 611.77 1.35 24066.2 69.8 69800.0 91090.6 6358121576.6 6358.1 14.02
Q2 2017 23244.9 7.06 7060 87981.9 621152542.3 621.15 1.37 23685.0 70.8 70800.0 89647.7 6347058930.0 6347.1 13.99
Q3 2017 23937.3 6.47 6470 90602.7 586199342.8 586.20 1.29 24583.2 66.1 66100.0 93047.4 6150433933.2 6150.4 13.56
Q4 2017 22900.6 6.90 6900 86678.8 598083519.9 598.08 1.32 23779.6 80.1 80100.0 90005.8 7209463458.6 7209.5 15.89
Ql 2018 23103.4 6.12 6120 87446.4 535171778.3 535.17 1.18 23982.8 62.3 62300.0 90774.9 5655276145.4 5655.3 12.47
Q2 2018 18137.0 6.34 6340 68648.5 435231775.3 435.23 0.96 23256.6 72.5 72500.0 88026.2 63819017 4 7 .5 6381.9 14.07
Q3 2018 15366.0 6.10 6100 58160.3 354777891.0 354.78 0.78 21248.7 55.4 55400.0 80426.3 4455618654.3 4455.6 9.82
Q4 2018 15420.2 6.02 6020 58365.5 351360051.1 351.36 0.77 24171.0 75.7 75700.0 91487.2 6925583689.5 6925.6 15.27
Ql 2019 16655.0 7.26 7260 63039.2 457664410.5 457.66 1.01 26149.9 71.9 71900.0 98977.4 7116473010.9 7116.5 15.69
Q2 2019 14311.9 10.4 10400 54170.5 563373631.6 563.37 1.24 23073.1 83.9 83900.0 87331.7 7327128245.7 7327.1 16.15
Q3 2019 14520.0 6.32 6320 54958.2 347335824.0 347.34 0.77 24711.7 72.5 72500.0 93533.8 6781199376.3 6781.2 14.95
Q4 2019 14399.8 6.52 6520 54503.2 355361144.4 355.36 0.78 24052.5 59.9 59900.0 91038.7 5453218878.8 5453.2 12.02
Ql 2020 14439.2 4.58 4580 54652.4 250307863.8 250.31 0.55 24746.1 57.7 57700.0 93664.0 5404412136.5 5404.4 11.91
Table4
Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
-TW4-4. TW4-22 -
-ro.tal Total
Pumped Cone Cone Tot.ii P1,1mpecl Total Total Pumped Cone Cone Tota.I Pumped Total Total
-auiner ,(gal) (mg/l) (u~) (liters) Total (ug) (grams) (po!Jn<!S) ,(gal) (mg/l) (ug(L), (liters) Total (ug) (grams) ,(pounds)
Q2 2020 15347.0 7.26 7260 58088.4 421721747.7 421.72 0.93 25295.3 60.5 60500.0 95742.7 5792433985.3 5792.4 12.77
Q3 2020 14389.9 7.04 7040 54465.8 383439031.4 383.44 0.85 23050.6 64.8 64800.0 87246.5 5653574560.8 5653.6 12.46
Q42020 150615 6.77 6770 57007.8 385942653. 7 385.94 0.85 22866.l 64.9 64900.0 86548.2 5616977433.7 5617.0 12.38
Totals Since
Q3 2010 2079834.20 118.8 763088.8 381.1
Table4
Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
TW4-24 TW4-25
Total Total
Pumped Cone Cone Total Pumped Total Total Total Pumped Cone Cone Pumped Total Total
Quarter (gal) (mg/L) (ug/L) (liters) Total (ug) (grams) (pounds) (gal) (mg/L) (ug/L) (liters) Total (ug) (grams) (pounds)
Q3 2010 NA NA 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 NA NA
Ql 2011 NA NA 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 NA NA
Q3 2011 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q42011 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2012 NA NA 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 NA NA
Q3 2012 NA NA 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 NA NA
Ql 2013 144842.6 35.9 35900 548229.2 19681429751.9 19681.4 43.39 99369.9 9.00 9000 376115.1 3385035643.5 3385.0 7.46
Q2 2013 187509.3 23.7 23700 709722.7 16820428001.9 16820.4 37.08 147310.4 5.24 5240 557569.9 2921666087.4 2921.7 6.44
Q3 2013 267703.5 32.6 32600 1013257.7 33032202568.5 33032.2 72.82 145840.9 5.69 5690 552007.8 3140924419.0 3140.9 6.92
Q42013 260555.3 34.6 34600 986201.8 34122582643.3 34122.6 75.23 126576.5 6.10 6100 479092.1 2922461520.3 2922.5 6.44
Ql 2014 229063.9 31.6 31600 867006.9 27397416823.4 27397.4 60.40 129979.2 2.16 2160 491971.3 1062657947.5 1062.7 2.34
Q2 2014 216984.1 35.0 35000 821284.8 287 4496864 7.5 28745.0 63.37 124829.8 1.21 1210 472480.8 571701759.5 571.7 1.26
Q3 2014 213652.5 31.5 31500 808674.7 25473253443.8 25473.3 56.16 119663.9 1.60 1600 452927.9 724684578.4 724.7 1.60
Q4 2014 178468.7 35.7 35700 675504.0 24115493853.2 24115.5 53.17 107416.1 1.03 1030 406569.9 418767036. 7 418.8 0.92
Ql 2015 92449.3 34.6 34600 349920.6 12107252777.3 12107.3 26.69 71452.4 14.40 14400 270447.3 3894441609.6 3894.4 8.59
Q2 2015 62664.2 31.8 31800 237184.0 7542451104.6 7542.5 16.63 91985.3 1.14 1140 348164.4 396907371.0 396.9 0.88
Q3 2015 66313.2 25.3 25300 250995.5 6350185188.6 6350.2 14.00 124137.1 1.63 1630 469858.9 765870045.3 765.9 1.69
Q4 2015 107799.1 29.6 29600 408019.6 12077379967.6 12077.4 26.63 116420.1 1.78 1780 440650.1 784357139.7 784.4 1.73
Ql 2016 100063.2 29.1 29100 378739.2 11021311069.2 11021.3 24.30 115483.2 0.84 837 437103.9 36585597 4.3 365.9 0.81
Q2 2016 65233.6 24.2 24200 246909.2 5975202059.2 5975.2 13.17 125606.0 0.96 959 475418.7 455926542.9 455.9 1.01
Q3 2016 51765.8 34.4 34400 195933.6 67 40114223.2 6740.1 14.86 104983.6 1.78 1780 397362.9 707306008.3 707.3 1.56
Q4 2016 99522.5 31.9 31900 376692.7 12016495933.8 12016.5 26.49 98681.2 1.24 1240 373508.3 463150344.1 463.2 1.02
Ql 2017 99117.4 41.3 41300 375159.4 15494081526. 7 15494.1 34.16 161.2 17.0 17000 610.l 10372414.0 10.4 0.02
Q2 2017 52808.7 39.9 39900 199880.9 7975249087.1 7975.2 17.58 101617.2 0.976 976 384621.1 375390195.6 375.4 0.83
Q3 2017 55574.6 40.0 40000 210349.9 8413994440.0 8414.0 18.55 124138.4 1.23 1230 469863.8 577932528.1 577.9 1.27
Q42017 106021.4 31.7 31700 401291.0 12720924668.3 12720.9 28.04 116731.9 1.29 1290 441830.2 569961011.5 570.0 1.26
Ql 2018 96900.2 44.9 44900 366767.3 16467849839.3 16467.8 36.31 116991.7 2.23 2230 442813.6 987474293.4 987.5 2.18
Q2 2018 53117.9 33.6 33600 201051.3 6755322050.4 6755.3 14.89 117758.3 1.14 1140 445715.2 508115288. 7 508.1 1.12
Q3 2018 53142.6 33.8 33800 201144.8 6798693525.1 6798.7 14.99 111657.5 0.810 810 422623.6 342325146.4 342.3 0.75
Q42018 101606.4 38.4 38400 384580.2 14767880601.6 14767.9 32.56 114458.2 0.634 634 433224.3 274664198.0 274.7 0.61
Ql 2019 97701.0 39.3 39300 369798.4 14533077063.0 14533.1 32.04 90789.5 0.639 639 343638.1 219584725.6 219.6 0.48
Q2 2019 53197.3 33.2 33200 201351.9 6684881625.8 6684.9 14.74 88302.0 0.821 821 334223.1 274397140.5 274.4 0.60
Q3 2019 54445.7 36.4 36400 206077.0 7501201871.8 7501.2 16.54 87609.5 0.548 548 331602.0 181717872.7 181.7 0.40
Q42019 102211.0 33.8 33800 386868.7 13076162421.7 13076.2 28.83 85928.5 0.841 841 325239.5 273526407.8 273.5 0.60
Ql 2020 86344.4 37.1 37100 326813.5 12124780044.9 12124.8 26.73 85049.5 0.607 607 321912.2 195400732.1 195.4 0.43
Table4
Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
TW~24 TW4-25
'Total --~tar
Pumped deno ~enq ~Pumt)O'd Total Total Total Pumped Cone Cenc Pumpecl T-otµI Total
Quarter (gaO !m~) (u.9{1.J (li~1 T~l.i! lug) _(grams) (pounds) (ga1> (mg/L) (.u_g/L) (lrt.Eil'$J Tota.I {ug) (grams) _(pound~):
Q22020 57634.7 41.7 41700 218147.3 9096744057.2 9096.7 20.05 90767.9 0.851 851 343556.6 292366679.4 292.4 0.64
Q3 2020 53316.1 39.1 39100 201801.4 7890436245.4 7890.4 17.40 83956.3 0.994 994 317774.6 315867910.3 315.9 0.70
Q4 2020 103987.2 35.9 35900 393591.6 14129936716.8 14129.9 31.15 86254.4 1.64 1640 326472.7 535415252.2 535.4 1.18
Totals Since
Q3 2010 3571717.S 1008.9 3351907.52 63.7
Table4
Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
TWN-02 TW4-01
Total Total
Pumped Cone Cone Total Pumped Total Total Pumped Cone Cone Total Pumped Total Total
Quarter (gal) ' (mg/L) (ug/L) (liters) Total (ug) (grams) (pounds) (gal) (mg/L) (ug/L) (liters) Total (ug) (grams) (pounds)
Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q42010 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2011 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2011 NA NA 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 NA NA
Q42011 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2012 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2012 NA NA 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 NA NA
Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2013 31009.4 57.3 57300 117370.6 6725334176.7 6725.3 14.83 NA NA NA NA NA NA NA
Q2 2013 49579.3 57.7 57700 187657.7 10827846433.9 10827.8 23.87 NA NA NA NA NA NA NA
Q3 2013 50036.5 80.0 80000 189388.2 15151052200.0 15151.1 33.40 NA NA NA NA NA NA NA
Q4 2013 49979.9 111.0 111000 189173.9 20998305286.5 20998.3 46.29 NA NA NA NA NA NA NA
Ql 2014 48320.4 42.6 42600 182892.7 7791229616.4 7791.2 17.18 NA NA NA NA NA NA NA
Q2 2014 47611.9 44.7 44700 180211.0 8055433555.1 8055.4 17.76 NA NA NA NA NA NA NA
Q3 2014 46927.2 42.0 42000 177619.5 7460016984.0 7460.0 16.45 NA NA NA NA NA NA NA
Q42014 47585.6 70.6 70600 180111.5 12715871617 .6 12715.9 28.03 NA NA NA NA NA NA NA
Ql 2015 47262.2 48.6 48600 178887.4 8693928952.2 8693.9 19.17 24569.2 7.06 7060 92994.4 656540619.3 656.5 1.45
Q2 2015 48497.3 52.8 52800 183562.3 9692088410.4 9692.1 21.37 23989.9 6.07 6070 90801.8 551166753.0 551.2 1.22
Q3 2015 48617.4 49.7 49700 184016.9 9145637892.3 9145.6 20.16 23652.0 6.3 6280 89522.8 562203309.6 562.2 1.2
Q4 2015 46754.1 44.9 44900 176964.3 7945695655.7 7945.7 17.52 20764.3 1.55 1550 78592.9 121818957.0 121.8 0.27
Ql 2016 47670.2 86.3 86300 180431.7 15571256314.1 15571.3 34.33 19255.6 0.15 148 72882.4 10786602.0 10.8 0.02
Q2 2016 50783.0 45.4 45400 192213.7 8726499937.0 8726.5 19.24 19588.2 0.14 138 74141.3 10231504.5 10.2 0.02
Q3 2016 42329.6 35.3 35300 160217.5 5655679020.8 5655.7 12.47 15613.5 5.49 5490 59097.1 324443065.3 324.4 0.72
Q42016 44640.6 32.6 32600 168964.7 5508248274.6 5508.2 12.14 16756.8 0.75 746 63424.5 47314668.0 47.3 0.10
Ql 2017 45283.2 27.4 27400 171396.9 4696275388.8 4696.3 10.35 16931.8 4.44 4440 64086.9 284545671. 7 284.5 0.63
Q2 2017 42550.6 25.0 25000 161054.0 4026350525.0 4026.4 8.88 18200.2 5.74 5740 68887.8 395415725.2 395.4 0.87
Q3 2017 46668.9 23.9 23900 176641.8 4221738697.4 4221.7 9.31 17413.6 5.04 5040 65910.5 332188799.0 332.2 0.73
Q4 2017 38964.7 31.9 31900 147481.4 4704656325.1 4704.7 10.37 14089.8 5.78 5780 53329.9 308246781.5 308.2 0.68
Ql 2018 43341.0 19.6 19600 164045.7 3215295426.0 3215.3 7.09 12505.7 4.84 4840 47334.1 229096920.6 229.1 0.51
Q2 2018 43697.0 19.8 19800 165393.1 3274784271.0 3274.8 7.22 10814.8 4.38 4380 40934.0 179290998.8 179.3 0.40
Q3 2018 41776.0 18.6 18600 158122.2 2941072176.0 2941.1 6.48 9727.3 4.30 4300 36817.8 158316671.2 158.3 0.35
Q42018 38545.8 19.6 19600 145895.9 2859558718.8 2859.6 6.30 9836.7 4.57 4570 37231.9 170149826.4 170.1 0.38
Ql 2019 44752.8 19.0 19000 169389.3 3218397612.0 3218.4 7.10 10603.6 4.51 4510 40134.6 181007163.3 181.0 0.40
Q2 2019 43432.2 45.1 45100 164390.9 7414028552.7 7414.0 16.35 9393.9 1.43 1430 35555.9 50844953.4 50.8 0.11
Q3 2019 41377.5 23.2 23200 156613.8 3633441030.0 3633.4 8.01 9734.1 1.65 1650 36843.6 60791888.0 60.8 0.13
Q4 2019 34011.4 18.2 18200 128733.1 2342943311.8 2342.9 5.17 9184.3 3.91 3910 34762.6 135921670.2 135.9 0.30
Ql 2020 32230.0 16.5 16500 121990.6 2012844075.0 2012.8 4.44 9796.7 4.67 4670 37080.5 173165979.4 173.2 0.38
Table4
Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
TWN-02 TW4-01
Total Total
Pumped Cone Cone Total Pumped Total To.tal Pumped Cone Cone Total Pumped Total Total
Quarter (gal) (mg/L) (ug/L) (liter~) Total (ug) (grams) (pounds) (gal) (mg/L) .(ug/L) (liters) Total (ug) (grams) (pounds)
022020 30078.9 16.l 16100 113848.6 1832963047.7 1833.0 4.04 9600.2 0.443 443 36336.8 16097183.4 16.1 0.04
Q3 2020 21279.1 17.2 17200 80541.4 1385311968.2 1385.3 3.05 9487.3 2.22 2220 35909.4 79718935.7 79.7 0.18
Q4 2020 25682.1 12.0 uooo 97206.7 1166480982.0 1166.S 2.'57 9318.7 4.300 4300 35271.3 1S1666501.9 1Sl.7 0.33
Totals Since
Q3 2010 1361275.8 470.9 350828.20 11.4
Table4
Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
-TW4-02 lW4-11
Total -, Total Total
Pumped Cone Cone Total Pumped Total Total Pumped Cone Cone Pumped Total Total
Quarter (gal) (mg/L) (ug/L) (liters) Total (ug) (grams) (pounds) (gal) (mg/L) (ug/L) (liters) Total (ug) (grams) (pounds)
Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q42010 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2011 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2011 NA NA 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 NA NA
Q42011 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2012 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2012 NA NA 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 NA NA
Q42012 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2013 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2013 NA NA 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 NA NA
Q42013 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2014 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2014 NA NA 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 NA NA
Q42014 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2015 24156.7 5.32 5320 91433.1 486424142.5 486.4 1.07 9898.7 8.72 8720 37466.6 326708573.2 326.7 0.72
Q2 2015 22029.9 4.30 4300 83383.2 358547637.5 358.5 0.79 5243.3 8.48 8480 19845.9 168293151.4 168.3 0.37
Q3 2015 21586.9 3.8 3760 81706.4 307216126.0 307.2 0.7 3584.4 9.6 9610 13567.0 130378427.9 130.4 0.3
Q4 2015 21769.8 5.18 5180 82398.7 426825229. 7 426.8 0.94 4110.3 7.50 7500 15557.5 116681141.3 116.7 0.26
Q12016 20944.6 5.30 5300 79275.3 420159148.3 420.2 0.93 3676.2 7.13 7130 13914.4 99209793.2 99.2 0.22
Q2 2016 20624.0 6.67 6670 78061.8 520672472.8 520.7 1.15 3760.4 7.81 7810 14233.1 111160620.3 111.2 0.25
Q3 2016 17487.4 4.07 4070 66189.8 269392522.6 269.4 0.59 2953.8 8.83 8830 11180.1 98720574.4 98.7 0.22
Q4 2016 19740.6 6.07 6070 74718.2 453539298.0 453.5 1.00 3050.2 8.92 8920 11545.0 102981462.4 103.0 0.23
Ql 2017 19869.7 4.74 4740 75206.8 356480300. 7 356.5 0.79 2984.2 8.12 8120 11295.2 91716999.6 91.7 0.20
Q2 2017 18716.7 4.90 4900 70842.7 347129276.6 347.1 0.77 2845.9 7.92 7920 10771.7 85312113.5 85.3 0.19
Q3 2017 19338.8 5.08 5080 73197.4 371842578.6 371.8 0.82 2830.0 7.78 7780 10711.6 83335859.0 83.3 0.18
Q42017 17327.6 3.28 3280 65585.0 215118688.5 215.1 0.47 2612.7 7.79 7790 9889.1 77035851.4 77.0 0.17
Ql 2018 16232.3 2.94 2940 61439.3 180631411.2 180.6 0.40 2571.0 7.89 7890 9731.2 76779444.2 76.8 0.17
Q2 2018 16051.4 3.50 3500 60754.5 212640921.5 212.6 0.47 2513.5 7.51 7510 9513.6 71447117.2 71.4 0.16
Q3 2018 14927.2 4.83 4830 56499.5 272892353.2 272.9 0.60 2170.2 7.15 7150 8214.2 58731580.1 58.7 0.13
Q4 2018 15464.1 3.52 3520 58531.6 206031297 .1 206.0 0.45 2379.5 6.85 6850 9006.4 61693891.4 61.7 0.14
Ql 2019 16169.9 3.92 3920 61203.1 239916040.3 239.9 0.53 2342.4 7.50 7500 8866.0 66494880.0 66.5 0.15
Q2 2019 13893.7 4.38 4380 52587.7 230333926. 7 230.3 0.51 2195.1 8.30 8300 8308.5 68960164.1 69.0 0.15
Q3 2019 14106.9 4.79 4790 53394.6 255760213.0 255.8 0.56 2046.0 7.15 7150 7744.1 55370386.5 55.4 0.12
Q4 2019 14220.9 3.40 3400 53826.1 183008762.1 183.0 0.40 1983.9 7.14 7140 7509.l 53614699.1 53.6 0.12
Ql 2020 13162.1 6.07 6070 49818.5 302398589.4 302.4 0.67 1947.4 7.07 7070 7370.9 52112326.6 52.1 0.11
Table4
Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
TW4-0Z TW4-U
Total Total Total
Pumped Cone Cone Total Pumped Total Total Pumped Cone Cone Pumped Total Total
auar;ter (~al) (mg/l) (ug/l) (liters)· Total (ug) '(gi:ams) (poungs) (g~I) (mgtl) (ug/L) (liters) Total (ug) (grams) (pounds)
022020 14155.6 3.62 3620 53578.9 193955784.5 194.0 0.43 2003.9 7.56 7560 7584.8 57340796.9 57.3 0.13
Q32020 14009.5 3.35 3350 53026.0 177636957.6 177.6 0.39 1784.1 7.59 7590 6752.8 51253892.4 51.3 0.11
Q4 2020 14582.9 2.34 2340 55196.3 12915928710 129.2 0.28 1394.6 7.19 7190 5278.6 37952853.6 38.0 0.08
Totals Since
Q3 2010 420569.20 15.7 72881.70 4.9
Table4
Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
-TW4-21 TW4-37
Total Total
Pumped Cone Cone Total Pumped Total Total Pumped Cone Cone Total Pumped Total Total
Quarter (gal) (mg/L) (ug/L) (liters) Total (ug) (grams) (pounds) (gal) (mg/L) (ug/L) (liters) Total (ug) (grams) (pounds)
Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q42010 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2011 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2011 NA NA 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 NA NA
Q42011 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2012 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2012 NA NA 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 NA NA
Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2013 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2013 NA NA 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 NA NA
Q42013 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2014 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2014 NA NA 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 NA NA
Q42014 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2015 30743.7 13.1 13100 116364.9 1524380249.0 1524.4 3.4 29206.0 35.2 35200 110544.7 3891173792.0 3891.2 8.6
Q3 2015 125285.4 14.7 14700 474205.2 6970817013.3 6970.8 15.4 118063.9 32.4 32400 446871.9 14478648312.6 14478.6 31.9
Q42015 134774.9 14.30 14300 510123.0 7294758850.0 7294.8 16.08 111737.5 34.60 34600 422926.4 14633254737.5 14633.3 32.26
Ql 2016 125513.3 14.60 14600 475067.8 6935990471.3 6936.0 15.29 111591.0 28.40 28400 422371.9 11995362954.0 11995.4 26.45
Q2 2016 132248.7 13.10 13100 500561.3 6557353416.5 6557.4 14.46 119241.2 27.90 27900 451327.9 12592049581.8 12592.0 27.76
Q32016 110381.9 16.50 16500 417795.5 6893625609.8 6893.6 15.20 98377.6 33.40 33400 372359.2 12436797814.4 12436.8 27.42
Q42016 130311.3 13.50 13500 493228.3 6658581651.8 6658.6 14.68 101949.1 26.10 26100 385877.3 10071398665.4 10071.4 22.20
Ql 2017 54333.5 17.70 17700 205652.3 3640045665.8 3640.0 8.02 97071.7 32.30 32300 367416.4 11867549219.4 11867.5 26.16
Q2 2017 60969.7 9.53 9530 230770.3 2199241097.2 2199.2 4.85 93191.3 31.20 31200 352729.1 11005146999.6 11005.1 24.26
Q3 2017 120116.2 18.2 18200 454639.8 8274444669.4 8274.4 18.24 81749.3 30.5 30500 309421.1 9437343565.3 9437.3 20.81
Q4 2017 126492.5 16.9 16900 478774.1 8091282501.3 8091.3 17.84 87529.6 30.6 30600 331299.5 10137765801.6 10137.8 22.35
Ql 2018 117832.0 15.8 15800 445994.1 7046707096.0 7046.7 15.54 84769.3 30.0 30000 320851.8 9625554015.0 9625.6 21.22
Q2 2018 116681.0 14.1 14100 441637.6 6227089948.5 6227.1 13.73 83653.1 28.6 28600 316627.0 9055531728.l 9055.5 19.96
Q3 2018 110001.4 0.236 236 416355.3 98259850.6 98.3 0.22 77457.8 25.4 25400 293177.8 7446715434.2 7446.7 16.42
Q42018 121686.3 15.2 15200 460582.6 7000856211.6 7000.9 15.43 76271.4 27.3 27300 288687.2 7881161897.7 7881.2 17.38
Ql 2019 123264.1 8.99 8990 466554.5 4194325339.8 4194.3 9.25 77591.4 30.1 30100 293683.4 8839871814.9 8839.9 19.49
Q2 2019 106893.6 17.5 17500 404592.3 7080364830.0 7080.4 15.61 64950.1 31.2 31200 245836.1 7670087209.2 7670.1 16.91
Q3 2019 108132.9 14.7 14700 409283.0 6016460489.6 6016.5 13.26 67572.0 25.8 25800 255760.0 6598608516.0 6598.6 14.55
Q42019 116167.6 5.73 5730 439694.2 2519447632.8 2519.4 5.55 66732.4 25.5 25500 252582.1 6440844417.0 6440.8 14.20
Ql 2020 106622.0 8.93 8930 403564.3 3603829269.1 3603.8 7.95 65554.2 28.3 28300 248122.6 7021870910.1 7021.9 15.48
Table4
Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
TW4-21 TW4-37
TQtal Total
Pumped Co;nc Cone To~I Pumped Total Total Pumped Con.c -Cone Total Pumped Total Total
Olia~er (_gal) (mJJfl.) (ug/1.) Uiters) Total (ug) (grams), (pou[!fls) (gal) '(m_g/1.) (ug/1.) (lite·rs) To~l{Ug) (grams) (pounds)
022020 110999.1 15.4 15400 420131.7 6470028288.6 6470.0 14.26 65163.8 28.3 28300 246645.0 6980053018.9 6980.1 15.39
Q32020 99515.1 12.6 12600 376664.7 4745975111.0 4746.0 10.46 56659.3 29.5 29500 214455.5 6326435789.8 6326.4 13.95
Q42020 107061.2 16.3 16300 405226.5 6605191796.8 6605.2 14.56 61323.9 28.7 28700 232111.0 6661584595.1 6661.6 14.69
Totals Since
Q3 2010 2496027.3 279.2 1897406.9 469.8
Table4
Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
TW4-39 TW4-40
Total Total Total Total
Pumped Cone Cone Pumped Total Total Pumped Pumped Total
Quarter (gal) (mg/L) (ug/L) (liters) Total (ug) (grams) (pounds) (gal) Cone(mg/L) Cone (ug/L) (liters) Total (ug) Total (grams) (pounds}
Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q42010 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2011 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2011 NA NA 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 NA NA
Q42011 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2012 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2012 NA NA 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 NA NA
Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2013 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2013 NA NA 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 NA NA
Q42013 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2014 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2014 NA NA 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 NA NA
Q4 2014 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q4 2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Ql 2016 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q2 2016 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q3 2016 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
Q42016 3589.3 20.70 20700 13585.5 281219860.4 281.2 0.62 NA NA NA NA NA NA NA
Ql 2017 103117.8 6.44 6440 390300.9 2513537622.1 2513.5 5.54 NA NA NA NA NA NA NA
Q2 2017 41313.0 6.25 6250 156369.7 977310656.3 977.3 2.15 NA NA NA NA NA NA NA
Q3 2017 34546.3 7.74 7740 130757.7 1012064950.2 1012.1 2.23 NA NA NA NA NA NA NA
Q4 2017 68180.2 2.65 2650 258062.1 683864451.1 683.9 1.51 NA NA NA NA NA NA NA
Ql 2018 59262.2 3.33 3330 224307.4 746943731.9 746.9 1.65 NA NA NA NA NA NA NA
Q2 2018 34259.8 4.84 4840 129673.3 627618980.1 627.6 1.38 NA NA NA NA NA NA NA
Q3 2018 33473.4 6.05 6050 126696.8 766515755.0 766.5 1.69 NA NA NA NA NA NA NA
Q42018 37003.6 6.39 6390 140058.6 894974620.1 895.0 1.97 NA NA NA NA NA NA NA
Ql 2019 49116.9 2.08 2080 185907.5 386687530.3 386.7 0.85 NA NA NA NA NA NA NA
Q2 2019 34285.7 8.45 8450 129771.4 1096568114.5 1096.6 2.42 81762.8 3.55 3550.0 309472.2 1098626302.9 1098.6 2.4
Q3 2019 36976.2 1.75 1750 139954.9 244921104.8 244.9 0.54 116414.2 3.39 3390.0 440627.7 1493728062.3 1493.7 3.3
Q4 2019 51808.6 0.948 948 196095.6 185898582.3 185.9 0.41 108281.9 2.89 2890.0 409847.0 1184457696.0 1184.5 2.6
Ql 2020 43169.3 0.792 792 163395.8 129409474.0 129.4 0.29 102021.5 2.98 2980.0 386151.4 1150731217. 7 1150.7 2.5
Table 4
Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
TW4-39 TW4-40
Tolal Total T9tal To1al
Pumpe;d Cone Cone Pumped Total Total Pumped Pumped Total
Ouarte.c (gal) (ni~) (ug/L) (lite~) Tolal (ug) (grams) (pound.s) (gal) Conc(mg/l) Cone (ug/l) (liters) Total (ug) Total (grams) (pounds)
022020 37352.7 5.010 5010 141380.0 708313647.2 708.3 1.56 100757.1 2.91 2910.0 381365.7 1109774294.8 1109.8 2.4
Q3 2020 35628.2 2.690 2690 134852.7 362753862.5 362.8 0.80 86264.5 2.88 2880.0 326511.1 940352061.6 940.4 2.1
Q4 2020 46794.2 7.030 7030 177116.0 1245125810.4 1245.1 2.75 77535.9 2.58 2580.0 293473.5 757161617.2 757.2 1.7
Totals Since
Q3 2010 749877.40 28.4 673038.0 17.1
Table 4
Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
TW4-41
Tatar Removed
!Total Pumpe~ Cone Cone Pumped Total Total by All
Quarter (gal) (mg/L) (ug/L) (liters) Total (ug) (grams) (pounds) Wells
Q3 2010 NA NA NA NA NA NA NA 15.69
Q42010 NA NA NA NA NA NA NA 27.97
Ql 2011 NA NA NA NA NA NA NA 73.30
Q2 2011 NA NA NA NA NA NA NA 27.01
Q3 2011 NA NA NA NA NA NA NA 16.82
Q42011 NA NA NA NA NA NA NA 19.71
Ql 2012 NA NA NA NA NA NA NA 15.86
Q2 2012 NA NA NA NA NA NA NA 15.03
Q3 2012 NA NA NA NA NA NA NA 14.67
Q4 2012 NA NA NA NA NA NA NA 14.92
Ql 2013 NA NA NA NA NA NA NA 95.73
Q2 2013 NA NA NA NA NA NA NA 91.71
Q3 2013 NA NA NA NA NA NA NA 176.53
Q42013 NA NA NA NA NA NA NA 162.07
Ql 2014 NA NA NA NA NA NA NA 103.14
Q2 2014 NA NA NA NA NA NA NA 101.87
Q3 2014 NA NA NA NA NA NA NA 92.99
Q42014 NA NA NA NA NA NA NA 108.57
Ql 2015 NA NA NA NA NA NA NA 82.61
Q2 2015 NA NA NA NA NA NA NA 68.86
Q3 2015 NA NA NA NA NA NA NA 118.63
Q42015 NA NA NA NA NA NA NA 124.50
Ql 2016 NA NA NA NA NA NA NA 132.55
Q2 2016 NA NA NA NA NA NA NA 99.98
Q3 2016 NA NA NA NA NA NA NA 101.12
Q42016 NA NA NA NA NA NA NA 106.06
Ql 2017 NA NA NA NA NA NA NA 116.19
Q2 2017 NA NA NA NA NA NA NA 80.12
Q3 2017 NA NA NA NA NA NA NA 93.37
Q42017 NA NA NA NA NA NA NA 106.21
Ql 2018 NA NA NA NA NA NA NA 111.99
Q2 2018 73711.2 6.54 6540 278996.9 1824639673. 7 1824.6 4.02 84.14
Q3 2018 44981.6 6.13 6130 170255.2 1043664404.2 1043.7 2.30 61.86
Q42018 35431.5 6.02 6020 134108.2 807331529.6 807.3 1.78 98.49
Ql 2019 31903.6 6.71 6710 120755.1 810266895.5 810.3 1.79 101.08
Q2 2019 25146.5 6.00 6000 95179.5 571077015.0 571.1 1.26 101.72
Q3 2019 24045.6 6.22 6220 91012.6 566098347.1 566.1 1.25 80.19
Q4 2019 21186.4 6.11 6110 80190.5 489964101.6 490.0 1.08 76.97
Ql 2020 17289.9 6.12 6120 65442.3 400506701.6 400.5 0.88 86.86
Table4
Quarterly Calculation of Nitrate Removed and Total Volume of Water Pumped
TW4-41
Total Removed
Total Pumped Cone Co_nc' Pumped Total Total by All
Quarter (gal). (mg/l) (ugll.) c1iters> To~l(ug) (grall'!s) (poundsj' Wells
Q22020 17294.9 6.78 6780 65461.1 443826399.0 443.8 0.98 85.95
Q32020 13411.4 6.69 6690 50762.3 339599536.5 339.6 0.75 81.69
Q4 2020 17765.7 6.25 6250 67243.3 420270313.8 420.3 0,93 89.15
Totals Since
Q3 2010 322168.29 17.0 3463.86
Table 5
Nitrate Date Over Time for MW-30, MW-31, MW-5, and MW-11
Date MW-30
Q2 2010
Q3 2010
Q4 2010
Ql 2011
Q2 2011
Q3 2011
Q4 2011
Ql 2012
Q2 2012
Q3 2012
Q4 2012
Ql 2013
Q2 2013
Q3 2013
Q4 2013
Ql 2014
Q2 2014
Q3 2014
Q4 2014
Ql 2015
Q2 2015
Q3 2015
Q4 2015
Ql 2016
Q2 2016
Q3 2016
Q4 2016
Ql 2017
Q2 2017
Q3 2017
Q4 2017
QI 2018
Q2 2018
Q3 2018
Q4 2018
QI 2019
Q2 2019
Q3 2019
Q4 2019
QI 2020
Q2 2020
Q3 2020
Q42020
ND = Not detected
NS = Not Sampled
15.8
15
16
16
17
16
16
17
16
17
18.5
21.4
18.8
17.6
19.5
18.4
19.4
16.8
16.2
14.9
17.0
17.9
16.3
20.0
17.3
18.0
17.2
17.4
17.5
19.2
17.4
17.6
17.3
18.0
17.3
17.9
18.5
19.3
18.2
16.4
18.1
18.4
16.8
MW-31
22.5
21
20
21
22
21
21
21
20
21
23.6
19.3
23 .8
21.7
23 .9
20.6
23 .1
18.9
20.9
18.7
19.0
19.9
18.4
18.8
18.6
19.7
18.8
21.1
18.3
19.5
19.2
18.8
19.0
20.1
18.3
19.0
19.7
19.8
19.8
17.5
18.8
19.2
18.6
MW-5 MW-11
ND ND
NS ND
0.2 ND
NS ND
0.2 ND
NS ND
0.2 ND
NS ND
0.1 ND
NS ND
ND ND
NS ND
ND ND
NS ND
0.279 ND
NS ND
ND ND
NS ND
0.21 ND
NS ND
0.142 ND
NS ND
0.118 ND
NS ND
0.156 0.117
NS ND
0.241 ND
NS ND
0.133 ND
NS ND
0.337 ND
NS ND
0.216 ND
NS ND
0.309 ND
NS ND
0.260 ND
NS 0.558
0.235 0.160
NS 0.308
0.142 0.297
NS 0.651
0.191 0.933
TABLE 6
Slug Test Results
(Using KGS Solution and Automatically Logged Data)
Well K
(cm/s)
MW-30 1.0E-04
MW-31 7.1 E-05
TW4-22 1.3E-04
TW4-24 1.6E-04
TW4-25 5.BE-05
TWN-2 1.SE-05
TWN-3 8.6E-06 .
Average 1
Average2
Average3
Average4
Notes:
Average 1 = arithemetic average of all wells
Average 2 = geometric average of all wells
K
lft/dav\
0.28
0.20
0.36
0.45
0.16
0.042
0.024
0.22
0.15
0.32
0.31
Average 3 = arithemetic average of MW-30, MW-31, TW4-22, and TW4-24
Average 4 = geometric average of MW-30, MW-31, TW4-22, and TW4-24
emfs = centimeters per second
ft/day= feet per day
K = hydraulic conductivity
KGS = KGS Unconfined Slug Test Solution in Aqtesolve TM.
S:\Environmental\UnWhiteMesaMill\Required Reports\Nitrate Quarterly Report\2020 04\FlowCalcs -Tables 6-7-8.xls: Table 6
Well
TW4-22
TW4-24
Notes:
ft= feet
TABLE 7
Pre-Pumping Saturated Thicknesses
Depth to Depth to Water Saturated Thickness
Brushy Basin Fourth Quarter, 2012 Above Brushy Basin
(ft) (ft) (ft)
112 53 58
110 55 55
S:\Environmental\UnWhiteMesaMill\Required Reports\Nitrate Quarterly Report\2020 Q4\FlowCalcs -Tables 6-7-8.xls: Table 7
TABLE 8
Pre-Pumping Hydraulic Gradients and Flow Calculations
Pathline Boundaries
TW4-25 to MW-31
TWN-2 to MW-30
Notes:
ft= feet
ft/ft = feet per foot
gpm = gallons per minute
Path Length
(ft)
2060
2450
Head Change Hydraulic Gradient
(ft) (ft/ft)
48 0.023
67 0.027
average 0.025
1 min flow (gpm) 1.31
2 max flow (gpm) 2.79
1 assumes width = 1,200 ft; saturated thickness = 56 ft; K = 0.15 ft/day; and gradient = 0.025 ft/ft
2 assumes width = 1,200 ft; saturated thickness = 56 ft; K = 0.32 ft/day; and gradient = 0.025 ft/ft
S:\Environmental\UT\WhiteMesaMill\Required Reports\Nitrate Quarterly Report\2020 Q4\FlowCalcs -Tables 6-7-8.xls: Table 8
Table 9
*Recalculated Background Flow
Background *Recalculated
Flow Background Flow
lanm) Caom)
minimum 1.31 0.79
maximum 2.79 1.67
* recalculated based on reduced widlife pond recharge as
presented in the third quarter, 2015 Nitrate Monitoring Report
gpm = gallons per minute
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 Kriged Current Quarter Groundwater Contour Map, Capture Zone Map, Capture Zone Details
Map, and Weekly, Monthly and Quarterly Depth to Water Data
Tab D Kriged Previous Quarter Groundwater Contour Map
Tab E Hydrographs of Groundwater Elevations over Time for Nitrate Monitoring Wells
Tab F Depths to Groundwater and Elevations over Time for Nitrate Monitoring Wells
Tab G Laboratory Analytical Reports
Tab H Quality Assurance and Data Validation Tables
H-1 Field Data QA/QC Evaluation
H-2 Holding Time Evaluation
H-3 Analytical Method Check
H-4 Reporting Limit Evaluation
H-5 QA/QC Evaluation for Sample Duplicates
H-6 QC Control Limits for Analyses and Blanks
H-7 Receipt Temperature Evaluation
H-8 Rinsate Evaluation
Tab I Kriged Current Quarter Isoconcentration Maps
Tab J Analyte Concentration Data over Time
Tab K Concentration Trend Graphs
Tab L CSV Transmittal Letter
Tab M Residual Mass Estimate Analysis Figure
Tab A
Site Plan and Perched Well Locations White Mesa Site
MW-24A perched monitoring well installed • December 2019
TW4-42 temporary perched monitoring well ¢ installed April 2019
TW4-40 perched chloroform pumping well E9 installed February 2018
TW4-19 perched chloroform or E9 nitrate pumping well
MW-38
-¢-perched monitoring well installed
February 2018
MW-5 • perched monitoring well
TW4-12
0 temporary perched monitoring well
TWN-7 temporary perched nitrate monitoring <> well
PIEZ-1 perched piezometer ~
RUIN SPRING
6 seep or spring
HYDRO
GEO
CHEM, INC.
WHITE MESA SITE PLAN SHOWING LOCATIONS OF
PERCHED WELLS AND PIEZOMETERS
APPROVED DATE REFERENCE
H :/718000/nov20/Uwelloc1220.srf
FIGUA-1
TabB
Order of Sampling and Field Data Worksheets
Name
TWN-18
TWN--04
TWN-01
TWN-07
TWN-02
TWN-03
Duplicate of 1Z
Nitrate
Mg/L
Previous
Qrt.
0.232
1.75
2.36
15.20
17.2
22.2
DI Sample "TwA>• '-C)
Piez-01
Plez-02
Piez-03A
7.36
0.793
12.B
Nitrate Samples
Date/Purge sample
JI /t2./'2./1l!', 01•.b
Ill Ii Z.foJari Di 'ib
I ii 12/zc.w i)q 12.
11/13/i.Dzo Otsi.to
11 /1n /7.t:il.0 o'\55
11/JJ,/,<fJll'. r~Z
l'./!"c./Uu., D15C:.
111/Jt/r.m~ DC.~
J:;e Jg~ I
Nitrate Order
4th Quarter 2020
Depth Total Depth
145
125.7
112.5
105
96
96
Rinsate Samples
Name Date Sample
TWN-lsR 111112.hozo l Ob!=.5
TWN-4R
TWN-lR
TWN-7R
TWN-3R
TWN-2R
Samplers: ~,er H,11.Ja]
Deal 4r0x\
Groundwater Discharge Permit ~~-'£.-.: ,. ~~-,'lj,.·' . E7<MSRGY~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID PIEZ-01 Sampling Program Nitrate Quarterly
Field Sample ID Piez-01 11132020 Sampling Event 2020 Q4 Nitrate
Purge Date & Time 11/13/2020 9:11
Sample Date & Time 11/13/2020 9:13 !sampler TH/DL
Purging Equipment Bailer Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 3
Purging Method 2 Casings Previous Well Sampled Piez-02
Casing Volume ()
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 7.0 Well Depth (ft) 107.50
pH Buffer 4.0 4.0 Well Casing Diameter (in) 1
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 66.98
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
11/13/2020 9:12 2355 7.48 13.72 447 3.1 68.4
[volu_me of water purged Q
Pumping_ Rate Calculations
Flow Rate (Q = S/60) ()
Time to evacuate 2 Casing Volumes()
!Final Depth to Water (f~t) 67.49 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?
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: I Arrive.<!_ O_!l ~~.at 0908. Sa,mples bailed and col~cted at 0913. Wat~r was mostly clear with tiny little wood like particles U()~til1_g_ around. Left site at 0916.
Signature of Field Technician
Groundwater Discharge Permit
~-~ L --
.~ El'< BQJGY~"5ES .-.;j
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID PIEZ-02 Sampling Program Nitrate Quarterly
Field Sample ID Piez-02 11132020 Sampli_ng Event 2020 Q4 Nitrate
Purge Date & Time 11/13/2020 9:01
Sample Date & Time 11/13/2020 9:03 !Sampler TH/DL
Purging Equipment Bailer Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 2
Purging Method 2 Casings Previous Well Sampled TWN-03
Casing Volume O
Calculated Casing Volumes Purge Duration O
pH Buffer 7.0 7.0 Well Depth (ft) 100.00
pH Buffer 4.0 4.0 Well Casing Diameter (in) 1
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 45.43
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
11/13/2020 9:02 887.0 7.61 13.49 433 1.1 21.0
Pumping Rate Calculations
!Volume of water purged() Flow Rate (Q = S/60) ()
Time to evacuate 2 Casing Volumes ()
[Final Depth to Water (feet) 46.21 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?
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 0856._ Samples bailed and collected at 0903. Water was clear. Left site at 0906.
Signature of Field Technician
-/·' ' _____) _' . : ,u,-, ~ -1-;/, -{'£~?)
Groundwater Discharge Permit
~----"F-:. L_. -
~·... h ' ~YlfUEZ S
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID PIEZ-03A Sampling Program Nitrate Quarterly
Field Sample ID Piez-03A_ll132020 Sampling Event 2020 Q4 Nitrate
Purge Date & Time 11/13/2020 9:24
Sample Date & Time 11/13/2020 9:28 [Sampler TH/Dl
Purging Equipment Bailer Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 3
Purging Method 2 Casings Previous Well Sampled Piez-01
Casing Volume ()
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 7.0 Well Depth (ft) 79.00
pH Buffer 4.0 4.0 Well Casing Diameter (in) 1
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 56.43
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
11/13/2020 9:27 1272 7.50 13.67 460 1.0 100.0
Pumping Rate Calculations
[~olu_me of water purged () Flow Rate (Q = S/60) O
Time to evacuate 2 Casing Volumes()
[Final_D~J>th to_ Water (feet) 56.99 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laborato!}'_
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 0924. Samples bailed and collected at 0928. Water was
Signature of Field Technician
~-"''-•"L--?'. --f"/--c:2~?)
Groundwater Discharge Permit ~e --·~,. ; ./. -. ..--.. _.......-<_ • ~
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TWN-01 Sampling Program Nitrate Quarterly
Field Sample ID TWN-01_11122020 Sampling Event 2020 Q4 Nitrate
Purge Date & Time 11/12/2020 9:07
Sample Date & Time 11/12/2020 9:12 !sampler TH/DL
Purging Equipment Pump Weather Conditions Partly cloudy
Pump Type Grundfos External Ambient Temperature (C) 0
Purging Method 2 Casings Previous Well Sampled TWN-04
Casing Volume (gal) 24.58
Calculated Casing Volumes Purge Duration (min) 4.47
pH Buffer 7.0 7.0 Well Depth (ft) 106.13
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 68.48
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
11/12/2020 9:09 22.00 890.0 7.18 15.15 463 1.1 40.0
11/12/2020 9:10 33.00 881.0 7.31 15.12 457 1.5 41.0
11/12/2020 9:11 44.00 882.0 7.39 15.18 452 1.7 42.0
11/12/2020 9:12 55.00 891.0 7.40 15.23 446 1.8 43.0
Pumping Rate Calculations
[volume of water purged (gals) 55.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 5.00
!Final Depth to Water (feet) 85.34 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?
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2504 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 0903. Purge began at 0907. Purged well for a total of 5 minutes. Purg_e ended and samples collected at 0912. Water was clear. Left site at 0915.
Signature of Field Technician
~ , , , .. ,.,__, __ -//'· -c2i.,..«:,..::,,,
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan e----~--_.--. l .._/ i/~ ' -·_____ -c,,·' _--E3'VERGYFICP5l'S
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TWN-02 Sampling Program Nitrate Quarterly
Field Sample ID TWN-02 11122020 Sampling_ Event 2020 Q4 Nitrate
Purge Date & Time 11/12/2020 9:54
Sample Date & Time 11/12/2020 9:55 [sampler TH/DL
Purging Equipment Pump Weather Conditions Partly cloudy
Pump Type Grundfos External Ambient Temperature (C) 3
Purging Method 2 Casings Previous Well Sampled TWN-07
Casing Volume (gal) 24.31
Calculated Casing Volumes Purge Duration ()
pH Buffer 7 .0 7.0 Well Depth (ft) 95.90
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 58.67
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
11/12/2020 9:54 2014 7.18 13.40 376 0 88.00
[volume_ of water purg~ ()
Pumping_ Rate Calculations
Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes ()
[Final De_e_th to Water (feet) 74.57 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?
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 0952. Samples collected at 0955. Water was clear. Left site at 0958.
Signature of Field Technician
~-~,n ,,__,-,:__, -,<'-;/-C./•
~~· ~~+,,-~YFY1FFS
Location ID
Field Sample ID
Purge Date & Time
Sample Date & Time
Purging Equipment
Pump Type
Purging Method
Casing Volume (gal)
Calculated Casing Volumes Purge Duration (min)
pH Buffer 7.0
pH Buffer 4.0
Specific Conductance (micromhos)
Date/Time Gallons Purged (gal)
11/12/2020 10:25 44.00
11/13/2020 8:51
11/13/2020 8:53
[volume of water purged (gal~)
~inal Depth to Water (feet)
Name of Certified Anal}'t_ical Laboratory
AWSL
Analytical Sample.s Information
Type of Sample/Analysis
Chloride
Nitrate/nitrite as N
Comments:
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
TWN-03 Sampling Program Nitrate Quarterly
TWN-03 11132020 Samplin_g Event 2020 Q4 Nitrate
11/12/2020 10:21
11/13/2020 8:52 [sampler TH/DL
Pump Weather Conditions Partly cloudy
Grundfos External Ambient Temperature (C) 3
2 Casings Previous Well Sampled TWN-02
34.64
6.29
7.0 Well Depth (ft) 96.00
4.0 Well Casing Diameter (in) 4
1000 Depth to Water Before Purging (ft) 42.94
Conductivity Dissolved
(umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
2320 7.24 14.86 412 9.0 38.1
2280 7.47 13.97 Before
2299 7.42 14.00 After
Pumping Rate Calculations
44.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 4.00
92.34 Number of casing Volumes 1.27
Volume, if well evacuated to dryness (gals) 44.00
Sample Container Preservative
Collected? Matrix Number Type Sample Filtered? Type Added?
y WATER 1 500-ml Poly u None N
y WATER 1 250-ml HDPE u H2S04 (pH<2), 4 Deg C y
Arrived on site at 1Cff7~Purge began at 1021. Purged well for a total of 4 minutes. Purgecfwell dry. Water was a little murky. Purge ended at 1025. Left site at 1030. Arrived on site at 0847. Depth to
water was 42.30. Samples bailed and collected at 0852. Left site at 0854.
Signature of Field Technician
----'\ -.___;,_,_ ... ..__,~-:: __ ... +..:'--~''
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TWN-04 Sampling Program Nitrate Quarterly
Field Sample ID TWN-04 11122020 Sampling Event 2020 Q4 Nitrate
Purge Date & Time 11/12/2020 8:31
Sample Date & Time 11/12/2020 8:40 !sampler TH/DL
Purging Equipment Pump Weather Conditions Partly cloudy
Pump Type Grundfos External Ambient Temperature (C) -1
Purging Method 2 Casings Previous Well Sampled TWN-18
Casing Volume (gal) 42.41
Calculated Casing Volumes Purge Duration (min) 7.71
pH Buffer 7 .0 7.0 Well Depth (ft) 126.40
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 61.45
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
11/12/2020 8:37 66.00 1044 6.93 14.67 473 1.6 69.0
11/12/2020 8:38 77.00 1040 7.12 14.66 467 2.0 68.4
11/12/2020 8:39 88.00 1039 7.21 14.67 463 2.0 67.5
11/12/2020 8:40 99.00 1036 7.25 14.69 459 2.0 67.1
Pumping Rate Calculations
!Volume of water pu!:_ged (gals) 99.00 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 9.00
[Final Depth _!o ~ater (fee!) 63.92 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?
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 0827. Purge began at 0831. Purged well for a total of 9 minutes._ Purge ended and samples collected at 0840. Water was clear. Left site at 0844.
Signature of Field Technician
~,:_..:,,·_A£..-·:,: __ --i ·;~---·
Location ID
Field Sample ID
Purge Date & Time
Sample Date & Time
Purging Equipment
Pump Type
Purging Method
Casing Volume (gal)
Calculated Casing Volumes Purge Duration (min)
pH Buffer 7.0
pH Buffer 4.0
Specific Conductance (micromhos)
Date!Time Gallons Purged (gal)
11/12/2020 9:43
11/13/2020 8:39
11/13/2020 8:42
(y~lume of water purged Jgals)
[ Final Depth to Water (feet)
19.25
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Type of Sample/Analysis
Chloride
Nitrate/nitrite as N
Comments:
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
TWN-07 Sampling Program Nitrate Quarterly
TWN-07 11132020 Samplin_g Event 2020 Q4 Nitrate
11/12/2020 9:42
11/13/2020 8:40 [sampler TH/DL
Pump Weather Conditions Partly cloudy
Grundfos External Ambient Temperature (C) 3
2 Casings Previous Well Sampled TWN-01
17.23
3.13
7.0 Well Depth (ft) 107.20
4.0 Well Casing Diameter (in) 4
1000 Depth to Water Before Purging (ft) 80.80
Conductivity Dissolved
(um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
1825 7.40 14.70 403 5.9 77.0
1832 7.65 14.10 Before
1840 7.63 14.13 After
Pumping Rate Calculations
19.25 Flow Rate (Q = S/60) (gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 1.75
104.23 Number of casing Volumes 1.11
Volume, if well evacuated to dryness (gals) 19.25
Sample Container Preservative
Collected? Matrix Number Type Sample Filtered? Type Added?
y WATER 1 500-ml Poly u None N
y WATER 1 250-ml HDPE u H2S04 (pH<2), 4 Deg C y
Arrived on site at 0838. Purge began at 0842. Purged well for a total of 1 minute and 45 seconds. Purged well dry. Water was clear. Purge ended at 0844. Left site at 0848. Arrived on site at 0836.
Depth to water was 91.28. Samples bailed and collected at 0840. Left site at 0843.
Signature of Field Technician
--"'\. ... ../)~ ---.) '"'• V>.:.-<--.--f-7"'· c-~ ,.,.._<')
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan ·e··.--~ ~ . /[._., '7 . ..,...--E:Jl'I..EA..G Y.F«:.,-=;t S
.,, ''
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TWN-18 Sampling_ Program Nitrate Quarterly
Field Sample ID TWN-18 11122020 Sampling Event 2020 Q4 Nitrate
Purge Date & Time 11/12/2020 7:45
Sample Date & Time 11/12/2020 7:56 [sampler TH/DL
Purging Equipment Pump Weather Conditions Partly cloudy
Pump Type Grundfos External Ambient Temperature (C) -2
Purging Method 2 Casings Previous Well Sampled TWN-18R
Casing Volume (gal) 55.36
Calculated Casing Volumes Purge Duration (min) 10.06
pH Buffer 7.0 7.0 Well Depth (ft) 147.00
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 62.21
Conductivity Dissolved
Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
11/12/2020 7:53 99.00 2700 6.71 14.48 430 1.0 2.0
11/12/2020 7:54 110.00 2704 6.83 14.49 425 1.0 2.0
11/12/2020 7:55 121.00 2701 6.89 14.49 421 1.1 2.0
11/12/2020 7:56 132.00 2703 6.93 14.49 417 1.1 2.0
Pumping Rate Calculations -
!Volume of water purged (gals) 132.00 Flow Rate (Q = S/60) {gal/min) 11.00
Time to evacuate 2 Casing Volumes (min) 12.00
!Final Depth to Water (feet) 64.36 Number of casing Volumes 2.00
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Analytical Sami:>_les Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
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 07 41 . Purge began at OJ ~5_. Purged well for a total of 12 minutes. Purge ended ar,cl samples collected at 0756. Water was clear. Left site at 0801 .
Signature of Field Technician
~ ... ,, .. "'.',l'\.,:!.....C.--_.;/.,:'-;
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan ~~ ~~---..-~Y~S---
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TWN-18R Sampling Program
Field Sample ID TWN-18R 11122020 Sampling_ Event 2020 Q4 Nitrate
Purge Date & Time
Sample Date & Time 11/12/2020 6:55 !sampler TH/DL
Purging Equipment Weather Conditions
Pump Type External Ambient Temperature ()
Purging Method Previous Well Sampled
Casing Volume ()
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 Well Deeth (ft)
pH Buffer 4.0 Well Casing_ Diameter ()
Specific Conductance () Depth to Water Before Purging (ft)
Conductivity Dissolved
Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp(deg C) Redox (mV) Turbidity Oxygen(%) Before/After
11/12/2020 6:54 133.00 2.5 7.12 10.41 383 54.7
[volume of water purged ()
Pumping_ Rate Calculations
Flow Rate (Q = S/60) ()
I Final Depth to Water (feet)
Time to evacuate 2 Casin_g_ Volumes()
Number of casin_g_ Volumes
Volume, if well evacuated to dryne~ ()
Name of Certified Analytica_!_ Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
Signature of Field Technician
2) _,_ . ~"<'-<---l ;'; --(L. !,
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan e~P7 ~-I r-~ _ .. ?', .· ' '
. _:,T,,'· y ~Y~-=7S
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-22 Sampling Program Chloroform Monitoring
Field Sample ID TW4-22 10282020 Sampling Event 2020 Q4 Chloroform
Purge Date & Time 10/28/2020 10:54
Sample Date & Time 10/28/2020 10:55 jsampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 7
Purging Method 2 Casings Previous Well Sampled TW4-24
Casing Volume (gal) 31.96
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 7.0 Well Depth (ft) 114.70
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 65.75
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
10/28/2020 10:51 5553 7.09 14.60 321 3.0 92.0
Pumping Rate Calculations
jvolume of water purged Q Flow Rate (Q = S/60) (gal/min) 18.00
Time to evacuate 2 Casing Volumes () I Final Depth to Wate~ (feet} 102.10 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-mL Poly u None N
Nitrate/nitrite as N y WATER 1 250-mL HOPE u H2S04 (pH<2), 4 Deg C y
Comments: I ~rrived on s_ite at 1051._Samples collected at 1055. Water was clear. Left site at 1057.
Signature of Field Technician
-::3.,.,~~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-24 Sampling Program Chloroform Monitoring
Field Sample ID TW4-24 10282020 Sampling_ Event 2020 Q4 Chloroform
Purge Date & Time 10/28/2020 10:44
Sample Date & Time 10/28/2020 10:45 !sampler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 7
Purging Method 2 Casings Previous Well Sampled TW4-25
Casing Volume {gal) 29.27
Calculated Casing Volumes Purge-Duration ()
pH Buffer 7.0 7.0 Well Depth (ft) 114.80
pH Buffer 4.0 4.0 Well Casing Diameter (in) 4
Specific Conductance {micromhos) 1000 Depth to Water Before Purging (ft) 69.97
Conductivity Dissolved
Date!Time Gallons Purged (umhos/cm) pH {pH Units) Temp (deg C) Redox (mV) Turbidity {NTU) Oxygen(%) Before/After
10/28/2020 10:44 6489 6.85 13.75 332 0 14.6
Pumping Rate Calculations
[volume of wate__l"_purg_ed {) Flow Rate (Q = S/60) (gal/min) 16.00
Time to evacuate 2 Casing Volumes O
[ Final Depth to Wate_ro(fe-et) 74.65 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Analyt_ical Samples Information
Sample Container Preservative
Type of Sample/ Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VOCs-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 1041 . Samples collected at 1045. Water was clear. Left site at 1048.
Signature of Field Technician
-::3~·
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan e-F-. r,,---· I , ,
.· 7,;a ' ~'4·· ,4 --_! '.,. . , .. ·.~~s
. .r ,L
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-25 Sampling Prog_ram Chloroform Monitoring
Field Sample ID TW4-25 10282020 Sam.e_ling Event 2020 Q4 Chloroform
Purge Date & Time 10/28/2020 10:34
Sample Date & Time 10/28/2020 10:35 [same_ler TH/DL
Purging Equipment Pump Weather Conditions Sunny
Pump Type Grundfos External Ambient Temperature (C) 7
Purging Method 2 Casings Previous Well Sampled TW4-21
Casing Volume (gal) 42.60
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) 71.46
Conductivity Dissolved
Date/Time Gallons Purged (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After
10/28/2020 10:34 2550 7.36 14.70 287 0 0
Pumping Rate Calculations
[volume of water purg~dj)_ Flow Rate (Q = S/60) (gal/min) 10.50
Time to evacuate 2 Casing Volumes ()
[Final Depth to Water (feet) 82.98 Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Analytical Sam.e_les Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
[ Arrived on site at 1031 . Samples collected at 1035. Water was clear. Left site at 1038.
Signature of Field Technician
~~"r/Z~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TW4-60 Sampling Program Chloroform Monitoring
Field Sample ID TW4-60 10282020 Sameling Event 2020 Q4 Chloroform
Purge Date & Time 10/28/2020 9:28
Sample Date & Time 10/28/2020 9:30 (sampler TH/DL
Purging Equipment Pump Weather Conditions
Pump Type Grundfos External Ambient Temperature ()
Purging Method 2 Casings Previous Well Sampled N/A
Casing Volume ()
Calculated Casing Volumes Purge Duration ()
pH Buffer 7 .O 7.0 Well Depth (ft}
pH Buffer 4.0 4.0 Well Casin_g__p~meter ()
Specific Conductance (micromhos) 1000 Dept~ 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
10/28/2020 9:29 1.8 S.39 lS.43 sos 0 71.0
PumJ>in_g_ Rate Calculations
Flow Rate (Q = S/60) () [volume ~water purged()
Time to evacuate 2 Casing Volumes ()
[_t=inal Depth to Water (feet) Number of casing Volumes
Volume, if well evacuated to dryness () 0
Name of Certified Analytical Laboratory
AWSL
Anal~ical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
VO Cs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2504 (pH<2), 4 Deg C y
Comments: I Di sample collected in lab at 0930.
Signature of Field Technician
~~M~
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan ·--...s · ~ .··· .· -. \• . '
~--· _.-~:
-. -c -? ,{Ai E>R:fRG Y'F.L-=T C:
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TWN-60 Sampling Program Nitrate Quarterly
Field Sample ID TWN-60 11122020 Sampling Event 2020 Q4 Nitrate
Purge Date & Time 11/12/2020 6:32
Sample Date & Time 11/12/2020 6:35 lsa"!J)ler TH/DL
Purging Equipment Pump Weather Conditions
Pump Type Grundfos External Ambient Temperature()
Purging Method 2 Casings Previous Well Sampled N/A
Casing Volume O
Calculated Casing Volumes Purge Duration ()
pH Buffer 7.0 7.0 Well Depth jft)
pH Buffer 4.0 4.0 Well Casing_ Diameter ()
Specific Conductance (micromhos) 1000 Depth to Water Before_ Purging (ft)
Conductivity Dissolved
Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After
11/12/2020 6:34 1.1 7.47 15.14 371 0 48.0
Pumping Rate Calculations
!Volume of water purged Q Flow Rate (0 = S/60) O
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
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
Chloride y WATER 1 500-ml Poly u None N
Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y
Comments:
[ Samples collected in lab at 0635.
Signature of Field Technician
~ .<, CH2A .-·C};;i, -(L o{
Groundwater Discharge Permit
Groundwater Monitoring Quality Assurance Plan
White Mesa Mill
Field Data Worksheet For Groundwater
Location ID TWN-65 Sampling Program
Field Sample ID TWN-65 11122020 Sampling Event 2020 Q4 Nitrate
Purge Date & Time
Sample Date & Time 11/12/2020 7:56 [sampler TH/DL
Purging Equipment Weather Conditions
Pump Type External Ambient Temperature O
Purging Method Previous Well Sampled
Casing Volume O
Calculated Casing Volumes Purge Duration O
pH Buffer 7.0 Well Depth (ft}
pH Buffer 4.0 Well Casing_ Diameter O
Specific Conductance O -Depth to Water Before Purging (ft)
\ Dissolved
Date!Time Gallons Purged Conductivit}' e_H Teme Redox Turbidity Oxygen I Before/After
Pumping Rate Calculations
[volume of water purged O Flow Rate (Q = S/60) O
Time to evacuate 2 Casing Volumes O
[Final Depth to Water (feet) Number of casing Volumes
Volume, if well evacuated to dryness ()
Name of Certified Analytical Laboratory
AWSL
Analytical Samples Information
Sample Container Preservative
Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added?
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:
[ Duplicate of TWN-18
Signature of Field Technician
~ _-., 'J1~ _ _.y_ .---1-~~-·-t::::,~;4,
TabC
Kriged Current Quarter Groundwater Contour Map, Capture Zone Map, Capture Zone Details Map, and
Weekly, Monthly and Quarterly Depth to Water Data
Name: Tanner Holliday
Date: 12/28/2020-12/30/2020
Depth to Depth to Depth to Water
Date Time Well Water (ft.) Date Time Well Water (ft.) Date Time Well (ft.)
12/30/2020 1254 MW-01 64.72 12/28/2020 1220 MW-04 87 02 12/30/2020 1232 PIEZ-01 67,03
12/30/2020 1048 MW-02 109.51 12/28/2020 1225 TW4-0l 98.20 12/30/2020 1226 PIEZ-02 45.41
12/30/2020 831 MW-03A 83.89 12/28/2020 1216 TW4-02 103.64 12/30/2020 1222 PIEZ-03A 56.56
12/30/2020 1012 MW-05 108.18 12/30/2020 936 TW4-03 63.95 12/30/2020 919 PIEZ-04 66.52
12/30/2020 955 MW-11 85.26 12/28/2020 1234 TW4-04 76 95 12/30/2020 921 PlEZ-05 65.37
12/30/2020 1015 MW-12 109,63 12/30/2020 942 TW4-05 71.53 12/30/2020 1207 TWN-01 68.55
12/30/2020 1041 MW-14 101.85 12/30/2020 930 TW4-06 78.49 12/28/2020 1145 TWN-02 64,23
12/30/2020 1032 MW-15 105.35 12/30/2020 932 TW4-07 81.90 12/30/2020 1211 TWN-03 42.41
12/30/2020 837 MW-17 71.96 12/30/2020 934 TW4-08 86.71 12/30/2020 1219 TWN-04 61.53
12/30/2020 1248 MW-18 73.60 12/30/2020 940 TW4-09 69.47 12/30/2020 1245 TWN-06 80 36
12/30/2020 1230 MW-19 65 65 12/30/2020 944 TW4-10 68.91 12/30/2020 1257 TWN-07 80.88
12/30/2020 731 MW-20 87 43 12/28/2020 1211 TW4-11 90.11 12/30/2020 1235 TWN-14 59.48
12/30/2020 714 MW-22 66.24 12/30/2020 903 TW4-12 55.32 12/30/2020 1239 TWN-16 47,71
12/30/2020 1018 MW-23 113.84 12/30/2020 909 TW4-13 56.43 12/30/2020 1215 TWN-18 62.19
12/30/2020 1051 MW-24A 111.45 12/30/2020 913 TW4-14 77.23 12/30/2020 1329 TWN-19 53.70
12/30/2020 948 MW-24 111.20 12/30/2020 948 TW4-16 73.28 12/30/2020 818 DR-05 83.09
12/30/2020 951 MW-25 80.77 12/30/2020 1204 TW4-18 72 58 12/30/2020 815 DR-06 94 02
12/28/2020 1207 MW-26 74.12 12/28/2020 1251 TW4-19 76.44 12/30/2020 1026 DR-07 91.84
12/30/2020 949 MW-27 58.30 12/28/2020 1135 TW4-21 76.87 12/30/2020 809 DR-08 51.21
12/30/2020 1054 MW-28 74.52 12/28/2020 1154 TW4-22 64.30 12/30/2020 807 DR-09 86 45
12/30/2020 1008 MW-29 10725 12/30/2020 927 TW4-23 75.07 12/30/2020 803 DR-10 78.34
12/30/2020 1004 MW-30 75.09 12/28/2020 1150 TW4-24 71.07 12/30/2020 826 DR-II 97.88
12/30/2020 959 MW-31 69.11 12/28/2020 1139 TW4-25 70.49 12/30/2020 829 DR-12 91.83
12/30/2020 949 MW-32 81.57 12/30/2020 925 TW4-26 73.26 12/30/2020 834 DR-13 69,72
12/30/2020 1037 MW-33 DRY 12/30/2020 850 TW4-27 78,82 12/30/2020 759 DR-14 76,07
12/30/2020 1023 MW-34 107.40 12/30/2020 905 TW4-28 48.71 12/30/2020 727 DR-15 92.75
12/30/2020 1020 MW-35 112.27 12/30/2020 852 TW4-29 77.91 12/30/2020 755 DR-17 64.61
12/30/2020 1022 MW-36 110.42 12/30/2020 859 TW4-30 74.91 12/30/2020 744 DR-19 63,26
12/30/2020 1039 MW-37 106.21 12/30/2020 900 TW4-31 76.17 12/30/2020 742 DR-20 55.65
12/30/2020 718 MW-38 70.39 12/30/2020 907 TW4-32 55.85 12/30/2020 735 DR-21 100.54
12/30/2020 722 MW-39 64.78 12/30/2020 848 TW4-33 77.58 12/30/2020 751 DR-22 DRY
12/30/2020 841 MW-40 79.76 12/30/2020 854 TW4-34 76.12 12/30/1020 738 DR-23 70.32
12/30/2020 857 TW4-35 75.05 12/30/2020 749 DR-24 44.27
MW-26 = TW4-15 12/30/2020 911 TW4-36 57.83
MW-32=TW4-17 12/28/2020 1158 TW4-37 68.48
Comments: 12/30/2020 938 TW4-38 59.25
12/28/2020 1202 TW4-39 75,85
12/28/2020 1240 TW4-40 74,50
12/28/2020 1230 TW4-41 86,53
12/30/2020 845 TW4-42 69.l 1
@
TW4-42
¢5526
MW-38
"9-5463
estimated dry area
temporary perched monitoring well
installed April, 2019 showing
elevation in feet amsl
perched monitoring well
installed February, 2018 showing
elevation in feet amsl
TW4-40 temporary perched monitoring well
+ss23 installed February, 2018 showing
elevation in feet amsl
M:5~04 perched monitoring well showing
elevation in feet amsl
TW4-12 h d . . II 0 5569 temporary perc e momtonng we
showing elevation in feet amsl
TWN-7 ch d . . . .A.5568 temporary per e nitrate momtormg
V well showing elevation in feet amsl
PIEZ-1 perched piezometer showing
~ 5588 elevation in feet amsl
RUIN SPRING b 5380 seep or spring showing
elevation in feet amsl
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 _e_umping wells; TW4-11 water level is below the base of the Burro Canyon Formation
HYDRO
GEO
KRIGED 4th QUARTER, 2020 WATER LEVELS
WHITE MESA SITE
CHEM, INC. DATE APPROVED REFERENCE
H:/718000/feb21 /WUUwl 1220.srf
FIG~E L-1
--, ,
I I
• ®
TW4-42
¢ 5526
MW-38
~5463
estimated nitrate capl\Jre zone boundary
stream tube resulting from pumping (note:
combined capture shown for TW4-22 and
TW4-24)
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;
for TW4-19, TW4-21 and TW4-25; and for
MW-26, TW4-37 and TW4-39
estimated dry area
temporary perched monitoring well
installed April, 2019 showing
elevation in feet amsl
perched monitoring well
installed February, 2018 showing
elevation in feet amsl
TW4-40 temporary perched monitoring well
+5523 installed February, 2018 showing
elevation in feet amsl
M;';504 perched monitoring well showing
elevation ln feet amsl
TW4-12 0 5569 temporary perched monitoring well
showing elevation ln feet amsl
TWN-7 h d . . . A 5568 temporary perc e nitrate momtonng
V well ~hawing elevation in feet amsl
PIEZ-1 perched piezometer showing
'-5588 elevation in feet amsl
RUIN SPRING b 5380 seep or spring showing
elevation in feet amsl
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 pumpin_9_wells; TW4-1 1 water !e11_el is below tll_e base of the Burro Canyon Formation
HYDRO
GEO
CHEM, INC.
KRIGED 4th QUARTER, 2020 WATER LEVELS
AND ESTIMATED CAPTURE ZONES
WHITE MESA SITE
APPROVED DATE REFERENCE FIGURE
H:/718000/feb21 /WUUw11220NT cz2.srf C-2
--,, ,,
II
• TW4-42 ¢ 5526
TW4-40
... 5523
MW-25
.5532
TW4-7
0 5539
PIEZ-2
-i 5583
estimated nitrate capture zone boundary
stream tube resulting from pumping (note:
combined capture shown for TW4-22 and
TW4-24)
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;
for TW4-19, TW4-21 and TW4-25; and for
MW-26, TW4-37 and TW4-39
temporary perched monitoring well
installed April, 2019 showing
elevation in feet amsl
temporary perched monitoring well
installed February, 2018 showing
elevation in feet amsl
perched monitoring well showing
elevation in feet amsl
temporary perched monitoring well
showing elevation in feet amsl
perched piezometer showing
elevation in feet amsl
NOTES: MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 are chloroform pumping wells;
TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells; TW4-11 water level is below the base of the Burro Canyon Formation
HYDRO
GEO
CHEM, INC. APPROVED
KRIGED 4th QUARTER, 2020 WATER LEVELS
AND ESTIMATED CAPTURE ZONES
WHITE MESA SITE
detail ma
DATE REFERENCE FIGURE
H:/718000/feb21/WUUwl1220NTcz.srf I C-3
Weekly Inspection Form
Date lQ-£-24 Name D~,a ki)'oooi'. :z;;;,w< H.~~"
System Operati ~I (ff no note
Ti me W II D th* e eo C ts bl J . ommen an~ ero ems corrective actions)
11'\'l. I MW-4 ~ <l t;" I) Flow 4 j_ bNo
Meter ~ "-., .., .., q ~ 1,. ,. V.-No
I() I~ MW-26 7:J. ~~ Flow J IA "' -No
Meter c , , r. ~ 1. <=1 "-No
I ':::l..()n TW4-19 "1"1 (') 2, Flow I IA ( .. ...... No
Meter .:i , G\"' 1 q Q I.( ~ No
"' L\ TW4-20 NA Flow .... , r,. Yes ....
Meter t-..1/l.e Yes -J /I r::i::-TW4-4 -, /,, ,.u. Flow 1/. ~ .,, v... No
Meter i~~~/)t;lrl Ye-No
r,Ql.,f ".l TWN-2 z;~ ~n Flow ,~ I'-¥81 No
Meter r:' I /_ I. "1 IA '-No
nae;,:: TW4-22 ,,;, ~ Ii Flow I st I) \!el. No
Meter '71.//"J:l J '.'.>. -, \1mt No
nQ1.1Q TW4-24 /,,-'\ (,, I Flow I I",. 4/ ¥as-No
Meter , "' "'\ n • .., 7 -. .., "9--No
nq-:i, t,. TW4-25 ,f'l 11..{ Flow II Q -No
Meter /.. I ~ '-' n "t I /A '@a No ·
,n1.1n TW4-1 In :.l. I (\ Flow I~ '-I .._ No
Meter 1 '-I o .c; n q ._ Vea> No
1n ~ ,::-TW4-2 J/1}'1.fl Flow Ir,. 1../ VM No
Meter "'n r: o ~"" ~ \a No
1n 1tJ TW4-11 1,tq. '2i'il Flow I ,:;-~ V..No
Meter -, .... a -, 1 ¥alP No
l')Q~f) TW4-21 -, I, I ::2 Flow It:. 8 ¥es> No
Meter .:i "'~ q q 1. i{ , ~ YJee, No
I fl fl I TW4-37 /',. (,, q c;'" Flow ,~ n ~ No
Meler , o :i. ,_ /) <1 -:t. n qfm, No
//J/)7 TW4-39 -r'i'. ,,-Flow ·~ " -No
Meter ..., n -t n Q ~ .'.l 'a No
/Jn4 TW4-40 -,,,c:i-:a. Flow .~ () '*8 No
Meter c:-q ~ ~n 1 "' ... No
/('ILJ{l TW4-41 ~~ ,q Flow '-I ~ ¥o No
Meter ~ 11 t.i I./ 1>.1 1,, c: .._ 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 1°-q.-M Name-.-., rt -1.~ L Jcc-Ossht: ft?ZACZ · leCfGCG Hol. J 7 .
System Ope ratio alJlf ·n~ ~~te
C ts bl t I Tl W II D th* me e eo ommen an~ ero ems correct ve actlonsl
J/)J ~ MW-4 QI f.ll Flow " n "8 No
Meter ~ /'_ er 1.u, q ,. _.., :1 'ies.. No
,nn 1 MW-26 ..,.., C'l-, Flow 1.e.. I\ ._ No
Meter C I .,, 1-1 la., ,., 2lfal No
IO r;e;-TW4-19 "1"1,f"r Flow J (,. 1 ~ No
Meter ".1.&JO~l7:1 < ~ No
"'1 A. TW4-20 "-IA Flow N~ Yes*
Meter N 6. Yes -M8
I (l ", c;" TW4-4 ~, qo Flow 11',. .14 .. ._ No
Meter ,.,ur..~'1 fl \!m-No
/)Q '] " TWN-2 ~~ ~c;" Flow I,:-. <2 ¥a> No
Meter ..,. ~ ""' Q • , ,. c;' ~No
II') ca" r,. TW4-22 r.."l.{_I.{_ Flow 1"1.fn .._ No
Meter ., "., /\ 7 1. , \.'Sr' No
/)Q~'l lW4-24 (,.7 /)~ Flow I{,. ~ 'ta No
Meter , "' ~ ~ ~ ~ ,_ n., --No
l')q I L,I TW4-25 I.. g. ({ Flow I I I..( Vat-No
~ Meter "· 1 « 1 ~q o , ... ¥9' No
1no:zK TW4-1 IA/,,. ~(/ Flow 1 '.l ..., 'a No
Meter "t ... , '.l -.in n *a No
J/l/W TW4-2 I ~,i J.11{" Flow ' /. '-I 'bs No
Meter "',, .., ri ~ ~ " ~ No
,nno. TW4-11 IQ I 1 '.l Flow it:. Q 'Ve No
Meter .., 11 ... 1 ~ q Vat No
/)Ctf'1 /. TW4-21 757. ::L ~ Flow ,, "'l :¥9-No
Meter ".l ~ q t.. .r;"" ~ ~ ~ ~ ¥9 No
l)Gt,7 TW4-37 -,~ I~ Flow td./J ._ No
Meter 'Gun1:1,::~ T WHt-No
l)Q t',J TW4-39 .., r, ~ 7» Flow
"' 11 V. No .... Meter -,n,1. d, r::-_ , .._ No
,n~::i. TW4-40 -,'.l-r\ Flow IQ f') "'-No
Meter r..ri, '-r//_ t;q .... No
11"1-2.n TW4-41 0.4....7 l Flow ""~ ~ No
Meter '\ n "'u fl j . n n -No
Operational Problems (Please list well number): .
-,!-11~~.,___.:...=-L......u.....!.l..l:l}..~.-l...li,1.ILLJ!:,,..~~1
Corrective Action(s) Taken (Please list well number): f',,""'4 5 10,,sc 41'ir-, 11\ :M;<.. br< .... k~r box: "IW'f--':1/
·,~ .f..,,11 d·'o11i::j prc:,py ~·
• Depth is measured to the nearest 0.01 feet.
Monthly Depth Check Form
Date r O; 1 ;!:w;;D Name P« o L~Yn4to • ::kon< c /./e I/, 46"'
Time Well Depth* Time Well Depth*
1011 MW-4 81-~0 J'i 2. h TWN-1 Gz8'. ~'"
IQ~E:> TW4-1 IG!,,J~ o~:i.c TWN-2 8"-· g..s
10 I'# TW4-2 100.~~ l~IJ TWN-3 Y;t .~I
l~l~ TW4-3 C.3.88 I~~ TWN-4 bl..13
IQ3.S TW4-4 gl -~O 1'"13~ TWN-7 ~1 -~6
1~13 TW4-5 11.33 ljl~ TWN-18 ~-~
\~1~ TW4-6 ;g ,'.::l'l.. I~ L5 MW-27 57.!;il
I ~::i!L TW4-7 ~1 -b'5 l:t 10 MW-30 1.5 ,3~
l?,:l.O TW4-8 ~~-05 l~Q8 MW-31 b'f, 18
1~1~ TW4-9 (.1 .31
I :!a II TW4-10 ~~.12.
loo~ TW4-11 'ti.~
I:!?!;~ TW4-12 55.21
1~5Q TW4-13 5b .~g 1~5j TW4-28 jr.,o
\~j~ TW4-14 17.5.5 l~YS TW4-29 77.83
1001 TW4-15 77.87 \3.38 TW4-30 ,.5.03
1'"103 TW4-16 73.ll 1~1 TW4-31 ,C..LfO
1~0£, TW4-17 i 1.Lf7 l5=i'2 TW4-32 52 .~
J~a~ TW4-18 7.2 -31 13:::U TW4-33 11. :i~
10~ TW4-19 7Y .5S ,~~\., TW4-34 i(.. C>j
NIA TW4-20 NIA l~:2 TW4-35 75, lfS .
O'tOfu TW4-21 i5 .:t.3 )~'-l~ TW4-36 57.~I
O'fY(. TW4-22 h'-i ,b ':I. 0'1~1 TW4-37 7i. ./5
l~l.l. TW4-23 TS . OJ.. l~lC.. TW4-38 ~j-~J
O't~~ TW4-24 fJ].O</:i O'lbL/ TW4-39 7().~
D~/~ TW4-25 b8'-f>I IOY'J... TW4-40 7:2..71
\'-1'.,~ TW4-26 13,?--) IO '.lO TW4-41 g:z.; I
I~ TW4-27 14. 0?,.,, \'!>3) TW4-42 b9.0l,
Comments: (Please note the well number for any comments)
* Depth is measured to the nearest 0.01 feet
Weekly Inspection Form
Date /Q · µ,-2,Q Name O<ce ~"~ ?wz<1<:c 6.7zll~1
vstem Operatlonal~no note
C ts b Time ell eo ommen an~ (!ro lems/correctlve actfonsl W D th*
l)q IP, MW-4 q I 9.Q Flow L/ n ~ No
Meter ~ .1,. q ... , ~ "=!. c:-'.::J ".J. 'ffl-No
1~~n MW-26 "71 1.3 Flow J /,. " V. No
Meter , , 7 1 .., r; n ... No
JrJ()t;' TW4-19 71'-I~ Flow JC:. /. ~ No
Meter ~ '-( ::1 :1 , , ...: ..., ¥e8-No
l'\l A TW4-20 !\.IA Flow NA. Yes -Meter M O.· Yes -1"4 0~ TW4-4 '7C '"1 "i Flow J (,. ~ ... -No
Meter 7:J 6,,":l,IQ/,. ~ ~ No
inn-, TWN-2 ,::,a 11 Flow ' '7 (} ._ No
Meter /fl:lt;:14 .., ... .._,..No
Ill :Hl TW4-22 /.. I.I I),_ Flow JR ll V8-No
Meter "1 &./ LI ~ '7 If'. ;( 'WD No
J('l / e:' TW4-24 J".."'J ~c-Flow ,,.I./ 'a No
Meter , ..., y n ~ 1.1 .... , '1 a YJill.: No
,nnn TW4-25 /-q.~, Flow I t . I' -.._. No
Meter t.,;; :1 ~ , D , n n -No
t'}Q/ /1 TW4-1 cu_ .'4 /,. Flow J :J ,_ -No
Meter .,, '-4 'l ~ Q 1:: t::-" 'U& No
n'ilt::'i::' TW4-2 C\"( ~, Flow I '7 /7 Ve No -Meter 1.1 n rl ~ ~ , · L.I }tea No
t?().'-'/'1 TW4-11 Cl O 'HI Flow I IA. !::I }ms No '
I Meter 7) ~ ~ 1 n ~ No
nt1<~ TW4-21 7~. 'l'A Flow J ~ 1,,/ "lfie!I. No
Meter ~ '-1 n 7 ':il 4/,, _ ,:-1 ~No
I l>"I.<"° TW4-37 ,._ I'... nzr-Flow ,~ n ~ No Meter , 12,., ., ~'1 '1 . .., WIIP No
inr::u TW4-39 -, t::". qrf Flow I'll I) ~ No
i; Meter -, , n ii'\~ c;i ~ No
t'-lln TW4-40 -91 .a~ Flow IR.O ~ No
Meter 1.1 o'I , .. ,.t, c;-Va No
1-2,c;'-r TW4-41 q: ii . (" IJ Flow ·. t;_Q ~No
Meter ~a~~ Dct 11,. 'e 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 ia-u-,a,o Name:z:2:,.4 G::4='i :z;:;;;cc f/,,1?4 .
System Operational (If no note
W II D th"' C ts bl t Time e 8D' ommen anlt'. ero ems corrective actJonsl
I .:I 14 MW-4 ~ct I ::J Flow '{ I? ~ No
Meter ~ ,,-:. q "1 ct "" r.. • 1 -No
1n&.t"1 MW-26 -,~ Qt:t Flow If-./) 'tfe No
Meter .:r, ~ n 1 ~ , ~No
I~ I f'I TW4-19 "1 ~ «~ Flow II. n -No w Meter ~ u ,:}(. e:t n -,. 2 ,._ No
N!J. TW4-20 -11.1 LI. Flow A I LI. 'tea(No 1
Meter "' .6. ~ f\Jo )
« I~ I.I .:l TW4-4 ~, ,:~ Flow I /.. () .,, "-No
Meter 7 .!) /.. « ~ ~ ri Ya No
,,.,,, TWN-2 r.n -:a,., Flow I/.. / ., No
Meter 11"" -r&1. ~ , ?ies No
I I)-, "1 TW4-22 r_ -a. ~?, Flow ,o Fl 'in No
Meter "" ,:;-c-q, ":I, , \!a No
U)HI TW4-24 t:q ~I!. Flow J ,I'_ /1) ._., No
Meter 1 "'~ ::1_ '7"' 7 .,, " WII& No
,,,n°" TW4-25 "7 I t A · Flow //I"' Ya No
Meter,:;;~ 1iR 111Q cac:i .. No
I ::J ":l 0 TW4-1 11\~ II Flow i i.1. n ~ No
Meter ':l.., ~ , , &.. • ~ 'sfm No
j •
1~1« TW4-2 Q:1_,~ Flow JI. "' .. Vllb No
Meter '-' n ct ~ :i. .t:". 'lil' ~ No
) 1n,;,:-TW4-11 QI\ . ., n Flow 1/, .. /J -No
Meter -, , 9 e;1 1.-1 . , ._ No
,,.,C\ ~" TW4-21 -,1.1. ~ Flow It.. ;',_ )as.-No
Meter ~ '-' , , 7 " o " ., ¥ea No
11"1~'1 TW4-37 ,,.,.,. -,n Flow 17.1'-¥D No
Meter , ~ C",, -=1 ,._ -2 1 Y.i!it No
ID&.fn TW4a39 -,. ,._ -..,er Flow lit 11 "8 No
Meter ., t \ 1.,1 t. -r -z. ._ No
''Ii c:" I TW4-40 -,, ~,. Flow Hl./1 'Va No
Meter /.., ,_,, /.. J') "'.1 .._. No
1~-:t. I~ TW4a41 cza un Flow I':. 0 -No
Meter -:a II Q ~ ·, -: . .c. ,::-_. 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 u-&-a..o Name.:O~
Time Well D eoth* C ommen ts an~ ero(!lems/correctlve actions)
nou -a MW-4 4,t.q "J. "2, Flow L/ n Vas No
Meter ~ 7 /J ,_, 7 :J n ~ Sl V.. No
()Q ::J../) MW-26 7~ /~;J Flow I&.. fl ._ No
Meter t;~ t? /',. ~ £. ~ .._ No
Jn~/) TW4-19 "'1'.l ~~ Flow • J/A" ._ No
Meter -'Ju"2.,~()'-f IQ -No
f\.l A TW4-20 NA Flow "16. Yes Am
Meter NtJ.. Yes Ml
J/ln-:J TW4-4 t;l,1_ ,~ Flow Ii /_ ... Ye No
Meter -, <::1 c.t , Q ct a -No
/] 'if jJ) TWN-2 t:<:f t;I ~ Flow It:. . /) ~ No
Meter 1 "'\ 4 LI 1 n ~ '6n No
IIJ~ ~ ,,_ TW4-22 I' ... Q nq Flow I~ {j )a No
Meter -, ,., -, ":l ., .., u .. No
/>O~ '7 TW4-24 "7/ &'4 Flow ·1"'1 ~ ¥a No
Meter , " 1.1 a 7 'il I;" /. ~ '9a No
nt2.n1 TW4-25 "'14 !'.11 Flow J ::J n .... No
Meter 1.. "2. t1 , ~ 'l. c: -... --No
1/)ctl-40 TW4-1 ID~ '-''ii Flow I~ I I'. Yea No
Meter ~ &.1 ':I a..t ~ , IQ .. No
1,?q~7 TW4-2 I In. /t:; Flow J/,. ~ .... No
Meter II u1 .., 4.1 7 . c, "81 No
/JQ "l .I ... TW4-11 QI') ~I Flow J<'. ~ '-No
Meter -, ~ ,,., ~ ..., 1../ Ya No
/)"'/I: :J TW.4-21 ,1;;-r-O Flow 1'1,0 ~ No
Meter ~ ,., , q ~ , , .., ~ ~ No
t}QJ./q TW4-37 /'.../;. -r~ Flow l~ () ._ No -Meter 1 'l.&i1::'nt:rr, c; ¥88-No
/)~L;., TW4-39 ., c:" . ..., 7 Flow I "7 9. Mal> No
Meter -, r L./ '-I 'l t •.. I;"" Ve No
1/\lf'I TW4-40 -r \ 'it c:;-Flow ,9..n ~ No
Meter 1,,, q ci ff 1.. r_ < ¥a.. No
nqc;~ TW4-41 aq 1<1 Flow ~ /.,,/) ~ No
Meter '3 , n Q n" 1-1 , ~ No
Operational Problems (Please list well number):
Corrective Actlon(s) Taken (Please list well number): ----------------
* Depth Is measured to the nearest 0.01 feet.
Weekly Inspection Form
Date 11-9-;zq
System Operatio~al (If no note
Ti me W II e D th* C ts bl t I eo ommen an~ ~ro ams correct ve actions)
l ~ c;"CJ MW-4 ~',( 17 Flow i.J n "8s No
Meter :1 "7 I I 'ii I-{ 7 n t'n V. No
·~ 2'1 MW-26 1.2 c;-q Flow 11. () ~No
Meter 1:: ::i :1 c:.i :i e; , 'ts No
J~O~ TW4-19 7.J. ,;-~ Flow J t: r, 'a!& No
Meter i.., 4 q ~ , 7 ,,. 't9& No
1\1 /1 TW4-20 NA Flow 1\..1 h. Yes cM8
Meter 1\1 A Yes ~
I~ I 0. TW4-4 ~,. 2 f', Flow Ir'.. '-' ., "9e No
Meter -, 1 q !l. 4 1 c:-V. No
'/) t;' /J TWN-2 C..1 c;(/'} Flow J'I. n ~ No
Meter , r; '-' i; ~ 9. q 'es No
I ::1.1, TW4-22 t:.'-1 ~o Flow I(. fl ~ No
Meter 7 1-1 ci 1 1 \ -, -No
1-::i f\q TW4-24 7 / ::l,_9, Flow J ,_ ""' '* No
Meter , 4 c:;-~ "1 1 .,, 1.1 Q "83 No
I() 1./1.J TW4-25 r.,q_ r:r,. Flow I /J I'.. '&Ii No
Meter 1 .. ,., " 7 ~. n 'i 1 ~ No
I ~()7 TW4-1 I () c:; ', {) Flow I '.l « '-No
Meter ~ "i'-1 ~ ~ -:i . oi Veil No
I 2 '-I(. TW4-2 q, otl Flow I(,. './ ~ No
Meter Y 1 , 7 .;;. 1 ~ )€es No
1 '.:l "I I TW4-11 ~q n Flow I '-/ &./ .... No
Meter -, .1 1 1 .. 1,. .., 'a No
ID':\Q TW4-21 71'-..11 Flow I/_ {) 'es, No
Meter 1 l./ -.:, -, ~ ,~. 1 ~ -No
I~ 'l ~ TW4-37 t:. I',. ~n Flow J 'ii () .._ No Meter , 9-,;-a.;). .., Q r;-)fn No
I () t:; "1 TW4-39 11 ~':?, Flow I <:. 17 ¥es No
Meter .., 1 ~ ::>. q 1..1 t:; 'Ms-No
I ?, ".:>. i::" TW4-40 -11 ,;i .I(" Flow I~ () 'ea, No
Meter 1.1 r.. ~ q ...-c::S? Vm No
I'\ I 2, TW4-41 qo.o~ Flow r-n ~ No
Meter ':t 1 :i. &..1 ~ "T , < -No
Operational Problems (Please list well number):
Corrective Action(s) Taken (Please list well number): -----------------
* Depth is measured to the nearest 0.01 feet.
Weekly Inspection Form
Date U -'<5-AA Name Z7aa V rao' :z,;;..,-!4b'-f,-
~vstem Operatio~I ~If no note
C ts l:U Time ell Deoth* ommen an:k'.: ~ro ems/corrective actions! w
JI),, ,1 MW-4 lol'CI -,c, Flow 1./n Va No
Meter .:, , 1 ~ ~ -:l .:i ~ J.1 "95 No
nQ-:a.a MW-26 7 ~ JI Flow )I~ 1'l ~ No
Meter ,; .:1 ,; , "q . ,. .._ No
111./n TW4-19 1nn.«1-Flow Jr,._,, --No
Meter :, ,., .1: n ~ Q '1 _ "'.I ~ No
+..I A TW4-20 "' A Flow ... , ti,. Yes ~~-·-~···
Meter NI'!.. Yes ...
1n'.l. n TW4-4 '76'/.ICil Flow J /,,, <2 ... Ye No
Meter -, ':1, n LI « " ..., --No
r>'1.,: &:' TWN-2 .:;"q 11 Flow JQ n "-No
Meter , 7 ~ o<'. ,,_ 1:... 'is No
inQ 1:>i. TW4-22 "-"' n-,. Flow 17 n · -No
Meter 7~/Jt;f ">.1:1. n "91> No
/)01). TW4-24 ~, ~"' Flow It;. 4 ~ No
Meter 1"'1/.. 7~ ~ ~ _1. r .. \sir No
•,/)ft I,/ c-TW4-25 -J~ -, "1 Flow I ('J '-._ No
Meter .r-. t:" , tJ 1ft',. ~ , .. -No
t/Jn4f TW4-1 1'1:2 C\'.2 Flow ' '1 /. ._ No
Meter ~ '"'"q °' -a. ~ ._ No
lnq~'":l TW4-2 I J :J . ~ 1. Flow ' ,. ,, .._. No
Meter ~, ::i S1 ~ r.. , ._ No
/)Q .... , .. TW4-11 Qn_i::.1> Flow J&./.Q "-No
Meter 7 '.l ~ q n n ... No
na-t2 TW4-21 71") / ::l Flow ,r;. ~ 'a No
Meter ~ u 'I.~ r.. , ~-A ~ Var No
l>Q I Cll TW4-37 J'. 7 ~ L./ Flow I~ /'I .._ No
Meter Hll "-4 e:;-/.) ~ -, w. No
l')q~Q TW4-39 '7":t. c:-~ Flow I~ f) ~ No
Meter -, .:i_!l n 11 • ·!J V.. No
//)".J. g TW4-40 ..,.~ "r;-Flow I« ,I) -No
Meter t;-a .2., l ~. q -, .._, No
In l "a TW4-41 ~~ ~{) Flow c.. (J 'as No
Meter ~, ~HUM ".l.., ~ No
Operational Problems (Please list well number):
Corrective Actlon(s) Taken (Please list well numbe
* Depth is measured to the nearest 0.01 feet.
Weekly Inspection Form
Date H-,i3-.j2Q Name Ve-r a C-f,y01"1 &m Ho11,;J(i
System Operation I {ff no note
C ts Time e eot ommen an~ eroblema/correctlve actions) W II D h*
lf\'2/l MW-4 q"] 1a Flow LI. n .._. No
Meter ~., -:::i /..I / . ., /_ o ~ No
Jn l):J. MW-26 ..,,_ ~~ Flow Ir.. -:l "-No
Meter c:-~ 7 '-I , /A -t '-No
I '>. 0 () TW4-19 7'~ ~t) Flow I /A /') ~ No
Meter :i J..t -, 1 <.? o 11 ~ 'ta No
/\.I A TW4-20 t\.r t>.. Flow h\ ~ Yes ...
Meter 1\1 6. Yes -J :l "l, (_ TW4-4 ~ I I c;' Flow I/,. I'.. .... ._ No
Meter , ~ , ~ '.t , "] ... No ~
ln£J1 ~ TWN-2 ~, n r;-Flow Ji~ .._ No
Meter , q. :1 ~ -,. q -,, 'ES No
/) Q ~ i;-' TW4-22 /.."' :J '] Flow I 7 . /) 'a No
Meter 7 ,::, t: q-, c; -No
/)q !) ~ TW4-24 ""71 /,.I Flow I IA. /A 'o No
Meter 1 1.1 ; .., u t:H. ..., -, *91 No
In ~<'"-TW4-25 -,,:: « c; Flow I 11 ~ Ya No
Meter r:. c; 7 /.. c:t ~ _ ~?. '8> No
,n~a TW4-1 ii'>/_ ,n FJow 11 .<;l ~ No
Meter ,:,, " c;' /_ , .,, 1 ... No
in,, TW4-2 Cl () ,;z Q Flow //';. ::J Ya No
Meter --1,, .,_ Q "" /_ '-' -No
1n1!') TW4-11 ~CI .C\\ Flow ,,;. IA "91 No
Meter -, ~ '"' .. ,,,. LI ._. No
/)fl."' .., TW4-21 "7 '"' "' c;' Flow I(.• t../ :. No
Meter -i"' ~ u, .:. , "7~ 'tflll No
lnqc.a :l TW4-37 /'. 4 . "1 "2. Flow ,-, 0 ._ No
Meter 1~/;..a ~ , o ,-.. '.-No
/Jt:Ut I TW4-39 -f' ~~ Flow IQ. (} " ... No
Meter "1 11:.. s:1 ~ ~ n .._ No
,~C:-/1 TW4-40 -, I I-//,. Flow 1 tt . n ~No
Meter t,; :\ 9. \ 1 t> Ii' q ~ No
l 'J ~() TW4-41 <;/7.~.., FJow ~ I) ... No
Meter ~ l c:; , n q 1-4 q ~ No
Operational Problems (Please list well number): ~~::}J
Corrective Action(s) Taken (Please list well number):f ________________ _
* Depth is measured to the nearest 0.01 feet. '
Monthly Depth Check Form
z;.;,« flr41t Date JI -£'i.,., 2'0 Name Wta kra:Ul~(
Time Well Depth* Time Well Depth*
IQ'Y> MW-4 8ii:-lj O'i38 TWN-1 ,g .~z
10~~ TW4-1 !Q b .10 eq~ TWN-2 ~
1011 TW4-2 ~O-Z8 69.11\ TWN-3 y,.",
OSI~ TW4-3 (.3.58 0933 TWN-4 bl-~
l.l3b TW4-4 s1 .1s Q9 25 TWN-7 8 1,S;t
Q~l2 TW4-5 i\.ll 093Q TWN-18 ,1.qG,
Dfi:2.D TW4-6 78.l'i O~/j MW-27 57. \L.f
0617 TW4-7 Sl.35 OS lb MW-30 ,Lf.tf3
o~lf> TW4-8 ie,.?.£ 01!j MW-31 ,8.~I
0~15 TW4-9 (/1.£2~
o&IO TW4-10 63 .Y.3
1010 TW4-11 ~q~ I
Q901 TW4-12 .5Ll.g5
Q~lj~ TW4-13 56-0~ Q'fO;L TW4-28 Y~.3~
03!>..':> TW4-14 11..xs QB5l TW4-29 77 .'2_':)..
]00~ TW4-15 71-33 OS'i~ TW4-30 7'i.71
Q912 TW4-16 7;l.(f 'i oga.r; TW4-31 7,.oj
0910 TW4-17 ~1-:2.3 ~jQS TW4-32 ss . Lf7
O'fliO TW4-18 1~~ Ofi3a TW4-33 ]1-.3"
1300 TW4-19 ;::,.iD Qfi~~ TW4-34 rs.ii
,v/A TW4-20 11.1/A Q~~L. TW4-35 ,5.0()
(28L.-r7 TW4-21 7~-:i5 031:D.. TW4-36 57.5b
Q~35 TW4-22 bLi .;i.:;L O~'i~ TW4-37 f.~-73
O~ll TW4-23 1"1.1~ QfSl3 TW4-38 SC\.11
0"2" TW4-24 tl.b 1 OC\~\ TW4-39 71 .~
oi5.6 TW4-25 1s.gS J'l.'~,O TW4-40 7t.4~
og:25 TW4-26 i:l..~j !.l3C TW4-41 87.;)..7
Of.LI I TW4-27 ,'b.7~ Of>3'-TW4-42 ,-a.SI
Comments: (Please note the well number for any comments)
* Depth is measured to the nearest 0.01 feet
Weekly Inspection Form
Date Name
Time Well Denth* Comments
System Operational (If no note
any problems/corrective actions)
1ll /)..., MW-4 Flow J.f _/) '.-No
)a No
n q,., ,,,. MW-26 I/} 'it q Flow 1 1,, n "-No Meter c; 1 q q s:i /) l..J 'M9 No
1 r .. , o TW4-19 , n c:. , < Flow , 1,. 11 .._, No
Meter ..1 "I s:? .1 ~ '-' c: a Va-No
"' A TW4-20 t\/ A Flow "' n Yes Me"
Meter ... , 1:,.. Yes MD
10::i-:t TW4-4 9.c ~n Flow , 7 n 'e No
Meter 1 3 ':l...; c; '-I. c: \fea No
.t::"~ n,:; Flow , 7 ~ ~No
Meter 11 , 1 t; .., 'J V. No
loq~..,. TW4-22 t:. t;' ~ 1 Flow , .., n .._ No
Meter 7,; ,_, "l, r:; I}. /. 'as No
'*'8 No
Meter 1 1.-1 ~ 7 1 Q ~ i;-Q V., No
n,u..t;"TW4-25 ,_Cl!'"',:;-Flow ,, _.'.] Ya No
Meter (',, r. ~ q :1 .., ~ -2. '-9 No
,n,n TW4-1 inc;",-, Flow ,-:i ~ .._. No
-No
ncu: A TW4-2 01. ~, Flow I t •. 4 '\!a No
Meter '--1 , r;-1 ,; n . ~ ~ No
l'>Q c: ~ TW4-11 al\ "''u Flow , c;-~ Vs No
Meter .., ~ a 1_ , 1_ ¥188 No
n, ':\ ~ TW4-21 , LJ r. "l., Flow , t:. -::J -. No
Meter "l "' r::' :i Q q ., , :i V.. No
ria"1."J,. TW4-37 711 ~n Flow HI n ~ No
Meter , Q -, '-f q ... 'l c: ~ No
/'I q 1,.1 n TW4-39 -rn q c.4 Flow ~ ~ -1 c:, n 't11P, No
Meter -,":\n~9,c<::1 '9 No
11'1-:t C\ TW 4-40 -r , cH\ Flow , c;t . n .._. No
Meter /.,, '-' LI 11 q "' . cu c.V:a No
1 n 1 ,~ TW4-41 ~Q , =i Flow ta n 'a No
Meter 11 i. 1 ~ , _ , ".:l ,_. No
Operational Problems (Please list well number): ~~
Corrective Actlon(s) Taken (Please list well number): ----------------
• Depth is measured to the nearest 0.01 feet.
Weekly Inspection Form
Ti W II
/System Operat1081 (If no note
D th* C ts an D bl t
Name t4,:a c-7<m'IY', '&a,m:: Hal/.j,.c Date ia,.-J-,20
me ~e eo ommen ~ ro ems ~rrectlve actions!
,no c;-MW-4 srn 1Q Flow 40 Va No
Meter do..., 4 IJ 3 O LI "19 ~No
0 q J.j e;-MW-26 ~/) £"/) Flow J /',, 0 V.. No
Meter ,, 3 Hn 51 1 Vas-No
,~:ii\ TW4-19 73 ;'-/ Flow J{,.,(J ._. No
'~ Meter ~ &.1 q 11 o ; ..1 . q, ~ No
J.JA TW4-20 NA Flow NA Yes *
Meter "' ti.. Yes•
Jr)'.l".l TW4-4 <10 ~°' Flow 1 (.IJ ~ ., .._, No
Meter 7~~~~7. 3 "-" No
1oqo,r TWN-2 9. 0 H Flow J ..,, 1 -No
Meter :>..'3 n ~, q ~ ._ No
lt>q 11'> TW4-22 ~(. 0~ Flow Ii () -No
Meter 7 t; 1,, t q ~ . 9 VD No
()qJt:;' TW4-24 ,I./,. I Flow J ( •• '1: v.. No
Meter , y 9 t .. 7 o .:J . 7 ,;--.. No
O~("f TW4-25 c.~ 7,;-Flow In. <;t -No
Meter /,. 7 n ~ 1 St L /LI 'a No
lnJD TW4-1 q /LI t.D Flow I ;J. ".J -No
Meter ~ Lf; n 1 q . ~ "-No
"" r;'~ TW4-2 /J{) ~() Flow 1 (. 4 .._,. No
Meter 41 t. I t;""c::i. Li -No
aqr; ~ TW4-11 ~~ ~4 Flow J'-1,9. "-No
Meter -, ~ ~q(! y V. No
IOHt;"/ TW4-21 7~ JC, Flow I/,. L.f v... No \.
Meter '.) 1../ ~ 11 ~.,,,: 3 5f 'to No
I oq ::l t;"" TW4-37 9.£/ 32 Flow I 'ii n .._. No
Meter I t{l. 7 H -, ""q . q wa No
1nq~~ TW4-39 ,J,t;'~ Flow I" n 'lea, No
Meter -, ~ 1.1 ~ ':1.D, c, 'Ma No
ID~O TW4-40 -, 1 Hi Flow ,a o .. No
Meter 6 '"I q 1 4 cL1 t.{ ... No
1n1t. TW4-41 ~CA -; ~ Flow In D '*-' No
Meter-; 17_1:;" n "l oq .. No
Operational Problems (Please list well number): 0)A/L(-~n .\
A&.. L ___ J }
,\_ _./
Corrective Actlon(s) Taken (Please hst well number). ----------------
* Depth Is measured to the nearest 0.01 feet.
Date 1~/ 11;;2020
Weekly Inspection Form
Name ~.,,,e,.. l-1011:J.,.d
Time Wei eot ommen an]l ero lems/correctfva actions} D h* C ts
System Operational Uf no note
b
0 ~t,'2, MW-4 85.12 Flow '1.0 { Yes) No
Meter -z. -i 5D11 Io. 00 (Yes) No -()g3t.. MW-26 7t...,L.fl. Flow IL.D (Ye& No
Meter 53/IC/ !7;1 (Yes:> No
{)q 'JI) lW4-19 ,&.f,q, Flow lb.b (?es ·1No
Meter ;t5 o q I .:t 'f . '<-r res·\ No
~
fl/(/\ lW4-20 ,v/.6. Flow ,,,_//A Yes (No-->
Meter ~//A Yes( No~
MO'-TW4-4 77. £.. 7.,. Flow 1c..s::.. .. (Yes '>Jo
Meter 13 :i '17 c... . &.I (Yes No
f.?S<IO lWN-2 t.l.f.~D Flow n.o {Y~s) No
Meter 1~113 10 (Yes JNO
f)fl'.2.1 TW4-22 ""· 10 Flow 17.D <Yes"I No
Meter -,c:; v..:.~\7. ~ \.Yes1 No
ogu ... TW4-24 7"J .n3 Flow lG..A (Y'es_J No
Meter lSI0.'31=11. ~x (Yes ] No
{)~fl" TW4-25 7o. ,i::.... Flow 11.0 l Yes.J No
Meter 1, 7 't57J. 't~ ( Yes) No
0~~5< TW4-1 q1.o~ Flow 1:l...S (Yes_)No
Meter ~~ !03:22. (Y es·""'No ---
O'i<'-11< TW4-2 10\.~7 Flow IL~ (Yes ~o
Meter "f 117D~.~ ( Yes No
~
o gt.L3 TW4-11 q~ .5"" Flow ti; 0 cYes "")No
Meter 72f5'81.7 ,-v-~ N "\'i11 ~ • -'"' l J 0 -
n,:Oo TW4-21 '1'5 yq Flow !<:..S ( Yes :::No
Meter z i.t1 ~-a_q f<. L '-I (Yes -:No
Ot2.S TW4-37 f<').r,f Flow l&.O (Yes) No
Meter I gl( C.4 .c. 'l . g r Yes No
01(~() TW4-39 -rl.'t~ Flow ,~.i'I (YesJ No
Meter 73Cf 1'3i 2. q r Yes)No
C) 'f II TW4-40 7 I.'<..{) Flow t i.() l Yes) No
Meter b58/L{7 I.\, l Yes) No
1'\ql\:l TW4-41 </..(_ ~~ Flow L.O ('{es) No
Meter 3.1'12.q~. "" (Yes)No ~-Operational Problems (Please ll~t well number):
' ck-;.,5,,rt-I.'.> ,. \ft rl .)
Corrective Action(s) Taken (Please list well number): ---------------
f"lcRl ~,cc} Mc.t~r on 1z/1gh02.p
• Depth is measured to the nearest 0.01 feet.
Weekly Inspection Form
Date ,a. .... q,.1-VJ Name 1A::!a~010a1 %a« f:fall:/y
System Operatlonal llf no note
Tl W fl D th* Com ants anv or bl ~ 1 me e ep m 0 ems correct ve actions} oc:r-:i,, MW-4 c;s ,i (_ :2 Flow I-/ a )ta No
Meter .1 1 t:; 4 rn I :i 1_ -;i Vie. No
/)({\C\ MW-26 ·1-z, /"/' Flow I(,,, /J 'tsg No
Meter 1., ~ t_ t i..J o ~ '6s No
ii if,o TW4-19 ~kl qr;, Flow It, (} Vea, No
Meter "1 t:' 1 e; 9. 1 t-1 -".). .... No
Al 11. TW4-20 N ,t\ Flow NA Yes '-'"
Meter ,,. , ,1 Yes -.,
oql:'(n TW4-4 //A ,77 Flow I(,. I 1... ., ._ No
Meter 7 ""3 /;, () 1 r,., .,_ \Es-No
It? 9, i..J K TWN-2 ,;' e, "t;' Flow //,, ~ --No . Meter :it-~ !?'-'I , 1 ~ No
no"" TW4-22
'" J'I,
Flow J /',,., '-/ Yea No
Meter 7 'i""c:t i;-9i 3, '.A V. No
D'at;f TW4-24 7!J 4q Flow / I., :1.. ~ No
Meter , r; 1 <: -, i;' 3 ,:; -, ¥e5 No
1)~11 TW4-25 e,q ~~ Flow /0.'I ~No
Meter ;;. ~ ~ ~ i: ei r i.-( ¥a:5 No
(JqJ.jt( TW4-1 /(}t;~r7 Flow I :2 g' 'in> No
Meter "4, '11J ~ :2.3 , () ..._ No
{)q~i TW4-2 J I rJ.r,, I Flow //,,.vi 'la No
Meter 4 1 ~~-;, r,, ¥ea No
n '12..,;-TW4-11 q O /Jfc Flow I /p, g ~ No
Meter 1 , 'T .,-:; ¥ID No
~S3f TW4-21 ·,1,, 1n Flow u .. ' J.i ¥SI No
Meter ::J. '-J.,. q ~ 'ii_~ ~-a "-' No
nqfJt-TW4-37 ,: /;. ' ,z; l,. Flow ,~ 0 ¥a No Meter , 4a.cr11,;-ft 1189' No
no..\-:,, TW4-39 -, r;" 'A~ Flow ,~ 0 'a No
Meter 7'-1, ~ 11 "f "8 No
JO(Jt;" TW4-40 '"11 u~ Flow ICJ.,0 -No
Meter f n(_fi-{-,;'~ ,1..q .._ No
()(I r:;'I} TW4-41 -Flow t:,, ,() Vlllt No q,q '-( L,
Meter 11 ~ ~.,, , . 17 l -No
Operational Problems (Please list well number): (--rt,U't;J ~ '2f) ).
A I,, ,n,. f,,-,,,.-_, .,,/I /
Corrective Action(s) Taken (Please list well numbel ./
• Depth is measured to the nearest 0.01 feet.
Date 12 12.s 1;.p2p
Weekly Inspection Form
Name -,_,"er 1-loll ,Jll j
Ti W II D th* Comments
System Operational (If no note
anv orobl t I me e &D ems correct ve actions)
12.z.D MW-4 ~1.D~ Flow Y.b C'lesl No
Meter 2.-, ("' I f< c:.o l..' l Yes No
\'Z..01 MW-26 ""1',. ,~ Flow 1(..D (Yes. No
Meter 5?>K3Z'I .o (Ye~ No
1251 TW4-19 7'-Lf'i Flow ,,.o (_yes) No
Meter .l5 27 W'"f . B' ( Ye!I No
,,,,//!', TW4-20 .tv'/.., Flow A//,1\ Yes ( No)
Meter tv/A Yes (NO\
lZ.5"i TW4-4 7C...9.5 Flow IC..~ ., (Yes1 No
Meter 7'3 7,1 C.2.. 7 (Yes No
11"15 TWN-2 b'i 13 Flow l(;,,. b (Y_~o
Meter ~S< 17q. C,.5 ( Yes)No
-
IIS"I TW4-22 C. '-I. 30 Flow ICY ( Yes ,,No
Meter 7b l~b 1.0 ( res No
tlSO TW4-24 71 t)/ Flow lb.0 (Ye.s) No
Meter 151;0,e:..11 ~ No
I l:l'Y TW4-25 10 , L.Jq Flow 10 .A (Yes_......."'No
Meter b 8'H,,5 0. :l.b ( Yes )No
IZ.Z.S TW4-1 qg ,-.0 Flow \~.o (Yes No
Meter ~"\~D'i l. .3 ( Yes No
IZ.lh TW4-2 ll>'\.b"i Flow 1~.o (Yes ~No
Meter Y l'l"i !'\,'f ( Yes JNo
l'Z.lf TW4-11 'ID II Flow 1-?.C {Yey No
Meter =z..c \. 87 ( Yes> No
11-a..s; TW4-21 7b,g7 Flow 1~.!:) (Yes) No
Mete( 2. 't ~ng 71 .'t V (Yes)No
1151: TW4-37 (.X . '-f g Flow IS<. 0 {Y.e_s ') No
1 Meter I ~q 2f<n ~ f, ( TI3S) NO
l'Z.02. TW4-39 -,i;, 8~ Flow l~.6 (Yes} No
Meter ,~~l~Lf.7 c Yes) No
12."lO TW4-40 71..\ S D Flow 18 0 r.Y.es.") No
Meter C.C. 12. 70 .S') (~ No
1~0 TW4-41 2.C. 5'2, Flow c..o CY.BVNo
Meter 1U>'i5~. e:,z. (Yes) No ,-
Operational Problems (Please list well number):
Corrective Actlon(s) Taken (Please list well number): r--.--------------
-fl..>l.f-20 Wa..., 1a ccn a..bg,nd.aad •
.. Depth is measured to the nearest 0.01 feet.
TabD
Kriged Previous Quarter Groundwater Contour Map
@
TW4-42
¢5526
MW-38
"9-5463
estimated dry area
temporary perched monitoring well
installed April, 2019 showing
elevation in feet amsl
perched monitoring well
installed February, 2018 showing
elevation in feet amsl
TW4-40 temporary perched monitoring well
+5526 installed February, 2018 showing
elevation in feet amsl
M:,'5~03 perched monitoring well showing
elevation in feet amsl
TW4-12 0 5569 temporary perched monitoring well
showing elevation in feet amsl
TWN-7 h d . . . <>5568 temporary perc e nitrate monitoring
well showing elevation in feet amsl
PIEZ-1 perched piezometer showing
g 5588 elevation in feet amsl
RUIN SPRING b 5380 seep or spring showing
elevation in feet amsl
NOTES: MW,4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 are chloroform pumping wells;
TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells; TW4-11 water level is below the base of the Burro Can1on Formation
HYDRO
GEO
CHEM,INC.
KRIGED 3rd QUARTER, 2020 WATER LEVELS
WHITE MESA SITE
APPROVED DATE REFERENCE
H:/718000/nov20/WUUwl0920.srf
FIGURE
D-1
TabE
Hydrographs of Groundwater Elevations over Time for Nitrate Monitoring Wells
CX)
0
0
-.,J 0 0
' '
' ~· ~
l
t
••
' ••
•
Depth Below Measuring Point (ft.)
O> 0 0
' l
.t
••
'
•
•
01 0
0
•
1
t
•
•
0
""" 0 0
w 0 0
I\) 9
0
....
0 0 0 0
02/22/08
07/06/09
11/18/10
04/01/12
08/14/13
12/27/14
05/10/16
09/22/17
02/04/19
06/18/20
10/31/21
~ z I ......
:e I» -CD "'I
r-CD < ~
0 < CD "'I
::!
3 CD -= .
2:
3
"C -
co 0 0
CX) 0 0
---.I 0 0
Depth Below Measuring Point (ft.)
0) 0 0
(JI 0 0
.i:,. 0 0
w 0 0
I\) 0 0
......
0 0 0 0
1----1---1---1----1-------+----+----+----+----+ 02/22/08
07/06/09
11/18/10
04/01/12
08/14/13
12/27/14
05/10/16
09/22/17
02/04/19
06/18/20
,__ _ ___. __ _,_ __ __._ __ _,_ __ _._ __ .....__ __ ....__ _ ___. __ __._ 10/31/21
~ z I I\)
i -(D
"'I
r-
(D
t
0 < (D
"'I
::t
3 (D -?
C" -3
"C -
.j::,.
(]1
0
.j::,. 0 0
w (]1
0
Depth Below Measuring Point (ft.)
w 0 0
I\) (]1
0
I\) 0 0
.....
(]1
0
.....
0 0
(]1
0 0 0 1----1----+----1------------------02/22/08
07/06/09
11/18/10
04/01/12
08/14/13
12/27/14
05/10/16
09/22/17
02/04/19
06/18/20
..__ _ __. __ __._ __ _._ __ _,_ __ _..._ __ ~----~-----10/31/21
~ z I w
~ -(I) ...
r-(I) < (I)
0 < (I) ...
::t 3
(I) --:-+
C"
3
'tJ -
-a.
E -.c = -Cl)
E
i=
'-Cl) > 0
Cl) > Cl)
..J
'-Cl) -~
-.:::t' I z ~
Ol/8~/90
6~/170/cO
L~/GG/60
9~!0~/90
t, ~/LG/G~
£~/v~/80
UHO!vO
0~/8~/H
60/90/LO
0 ci
0
ci ....
0 ci <O
0 ci I'-
co 0
0
CX)
0
0
'
'
~
' . • •
0
~
0
~
• • • • •
0
~
~
•
0
0
•
• 0
•
•
•
.....
,--
•
• •
' • •
0
•
~
•
Depth Below Measuring Point (ft.)
"'-I 0
0
--
O> 0
0
-
01 0
0 """ 0
0
<,.)
9
0
I\)
0
0
......
0
0
0
0
02/22/08
07/06/09
11/18/10
04/01/12
08/14/13
12/27/14
05/10/16
09/22/17
02/04/19
06/18/20
10/31/21
~ z I a,
::e D> -(1) .,
r-(1) < (1)
0 < (1) .,
::I
3 (1) -= .
C'
3
"C -
co CXl 0
co O> 0
Depth Below Measuring Point {ft.)
f 0
co l'J
0
co 0 0
CXl CXl
0
ex,
O>
0
ex,
.j:>.
0
ex,
l'J
0
ex,
0 0
1----1--------1----1---t-----+-----+-----+----+ 02/22/08
07/06/09
11/18/10
04/01/12
08/14/13
12/27/14
05/10/16
09/22/17
02/04/19
06/18/20
.__ _______ ___._ _____ _._ __ _,.__ __ ........__ __ ~ _ __. __ _,_ 10/31/21
~ z I ......
~ -CD .,
r-CD t
0 ~ .,
::t 3
CD -:=:
2:
3
"C -
-C. E -.c
I
== -a,
E
i= ... ~ 0
G) > a,
...J ... a, -j
"'=t'
T'"' I z ~
Oc/8 ~/90
6~/t,0/GO
L~/GG/60
9~/0~/90
v~/LG/c~
8 ~/t,~/80
c~/W/VO
60/90/LO
0 O'> IO
0 c,j co
IO c,j co
OG/8~/90
6~/vO/cO
-a. L ~/GG/60
E :a = -C1) 9~/0 ~/SO E
i= ... C1) > 0 t,~/LG/G~
C1) > C1)
.J ...
C1) -£ ~/t,~/80 ~
<D
T""
I z ~ c~HO/vO
60/90/LO
--..I 0 0
0)
0 0
....
Depth Below Measuring Point (ft.)
01 0 0
~ 0 0
w 0 0
I\:)
0 0
~----~
~
....
~
T
•
l • l
~
t
• •
• • ~ ·~
t
•
•
0
•
t
•
•
'
0
0
••
••
' .
•
•
t
•
t
•
0 ·~
.....
9 0
0 0
02/22/08
07/06/09
11/18/10
04/01/12
08/14/13
12/27/14
05/10/16
09/22/17
02/04/19
06/18/20
10/31/21
~ z I ...
CC)
~ -(1) ..,
r-(1) < !!.
0 ~ ..,
::t
3 (1) -:=
C" -3
"C -
u,
O> 0
u, u,
0
Depth Below Measuring Point (ft.)
u,
.i:,..
0
u, w 0 R3 0
u, ......
0
u,
0 0
.i:,.. co 0
i---------+----+------+----+------+----+------+02/22/08
07/06/09
11/18/10
04/01/12
08/14/13
12/27/14
05/10/16
09/22/17
02/04/19
06/18/20
~--__._ ___ _,__ ______ __._ ___ ~---~---'-10/31/21
~ z I ......
<D
:e D> -(1) ..,
r-(1) < ~
0 < (1)
""I
::t
3 (1) -= .
C' -3
"C -
-Q.
E
.c . = -G)
E
i= ...
G) > 0
G) > G)
.J ...
G) -~
0 M I ~ ~
8c/9~/80 ....-----.......-----.---------~---~-----.
OG/8~/90
H/GG/60
t,~/LG/G~
i~no1vo
60/90/LO
90/0~/0~
t>O/t>~/W -1----------+------+------1------1-----l
0 "<t' ,.._
0 ui ,.._
0 c:ri ,.._
0 i-..: ,.._
0 <X) ,.._
(·») 1u1od 6upnseaw Mo1ae 41daa
0 cri ,.._
0 ci co
-a.
E
1i = -G)
E
i= ...
G) > 0
ai > G)
..J ... G) -i
,-
(')
== :5
OC::/8~/90
n/GG/60
17~/LG/C::~
C::~/~0/170
60/90/LO
90/0~/0~
0 co co
0 cri co
C! 0 r--
0 co r--
0 cri r--
0 0 CX)
TabF
Depths to Groundwater and Elevations over Time for Nitrate Monitoring Wells
Water Levels and Data over Time
White Mesa Mill -Well TWN-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
5,646.96 5,648.09 1.13 106.13
5,600.38 02/06/09 47.71 46.58
5,599.99 07/21/09 48.10 46.97
5,600.26 09/21/09 47.83 46.70
5,601.10 10/28/09 46.99 45.86
5,602.59 12/14/09 45 .50 44.37
5,600.55 03/11/10 47.54 46.41
5,600.66 05/11/10 47.43 46.30
5,599.18 09/29/10 48.91 47.78
5,598.92 12/21/10 49.17 48.04
5,598.29 02/28/11 49.80 48.67
5,597.80 06/21/11 50.29 49.16
5,597.32 09/20/11 50.77 49.64
5,597.15 12/21/11 50.94 49.81
5,596.54 03/27/12 51.55 50.42
5,596.52 06/28/12 51 .57 50.44
5,595.03 09/27/12 53.06 51.93
5,596.62 12/28/12 51.47 50.34
5,593.54 03/28/13 54.55 53.42
5,592.38 06/27/13 55.71 54.58
5,591.65 09/27/13 56.44 55.31
5,590.34 12/20/13 57.75 56.62
5,590.03 03/27/14 58.06 56.93
5,589.09 06/25/14 59.00 57.87
5,588.15 09/25/14 59.94 58.81
5,587.74 12/17/14 60 .35 59.22
5,587.09 03/26/15 61.00 59.87
5,586.79 06/22/15 61.30 60.17
5,586.39 09/30/15 61.70 60.57
5,586.05 12/02/15 62.04 60.91
5,585.89 03/30/16 62.20 61.07
5,585.30 06/30/16 62.79 61.66
5,584.95 09/29/16 63.14 62.01
5,584.55 12/21/16 63.54 62.41
5,584.74 03/30/17 63.35 62.22
5,584.29 06/27/17 63.80 62.67
5,583.77 09/26/17 64.32 63.19
5,583.44 11/29/17 64.65 63.52
5,583.03 03/29/18 65.06 63.93
5,582.79 06/22/18 65.30 64.17
5,582.22 09/26/18 65.87 64.74
5,582.14 12/17/18 65.95 64.82
5,581.49 03/26/19 66.60 65.47
5,581.18 06/24/19 66.91 65.78
5,581.12 08/13/19 66.97 65.84
5,580.93 11/19/19 67.16 66.03
5,580.54 02/13/20 67.55 66.42
5,580.24 05/05/20 67.85 66.72
5,579.73 09/22/20 68.36 67.23
5,579.54 12/30/20 68.55 67.42
Water Levels and Data over Time
White Mesa Mill -Well TWN-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
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,625.75 5,626.69 0.94 95.9
5,611.37 2/6/09 15.32 14.38
5,610.63 7/21/09 16.06 15.12
5,609.73 9/21/09 16.96 16.02
5,607.08 11/2/09 19.61 18.67
5,606.57 12/14/09 20.12 19.18
5,612.45 3/11/10 14.24 13.30
5,612.78 5/11/10 13.91 12.97
5,611.37 9/29/10 15.32 14.38
5,610.24 12/21/10 16.45 15.51
5,610.64 2/28/11 16.05 15.11
5,609.78 6/21/11 16.91 15.97
5609.79 9/20/11 16.90 15.96
5609.72 12/21/11 16.97 16.03
5,605.69 3/27/12 21.00 20.06
5,605.67 6/28/12 21.02 20.08
5,603.03 9/27/12 23.66 22.72
5,605.76 12/28/12 20.93 19.99
5,598.28 3/28/13 28.41 27.47
5,594.32 6/27/13 32.37 31.43
5,594.38 9/27/13 32.31 31.37
5,594.68 12/20/13 32.01 31.07
5,597.79 3/27/14 28.90 27.96
5,595.80 6/25/14 30.89 29.95
5,587.67 9/25/14 39.02 38.08
5,592.66 12/17/14 34.03 33.09
5,596.71 3/26/15 29.98 29.04
5,598.64 6/22/15 28.05 27.11
5,597.89 9/30/15 28.80 27.86
5,597.89 12/2/15 28.80 27.86
5,594.25 3/30/16 32.44 31.50
5,590.26 6/30/16 36.43 35.49
5,591.67 9/29/16 35.02 34.08
5592.92 12/21/16 33.77 32.83
5589.05 3/30/17 37.64 36.7
5589.69 6/27/17 37.00 36.06
5590.71 9/26/17 35.98 35.04
5591.65 11/30/17 35.04 34.10
5574.69 3/28/18 52.00 51.06
5586.49 6/22/18 40.20 39.26
5550.31 9/24/18 76.38 75.44
5568.32 12/17/18 58.37 57.43
5553.52 3/25/19 73.17 72.23
5569.06 6/24/19 57.63 56.69
5565.38 8/12/19 61.31 60.37
5567.87 11/18/19 58.82 57.88
5577.69 2/13/20 49.00 48.06
Water Levels and Data over Time
White Mesa Mill -Well TWN-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
(WL) (LSD) (MP) Riser (L) Monitorin; (blw.MP) (blw.LSD) Well
5,625.75 5,626.69 0.94 95.9
5566.89 5/5/20 59.80 58.86
5570.34 9/21/20 56.35 55.41
5562.46 12/28/20 64.23 63.29
Water Levels and Data over Time
White Mesa Mill -Well TWN-3
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
5,633.64 5,634.50 0.86 96
5,603.77 2/6/09 30.73 29.87
5,602.37 7/21/09 32.13 31.27
5,602.34 9/21/09 32.16 31.30
5,602.60 10/28/09 31.90 31.04
5,603.12 12/14/09 31.38 30.52
5,602.90 3/11/10 31.60 30.74
5,603.23 5/11/10 31.27 30.41
5,602.86 9/29/10 31.64 30.78
5,603.35 12/21/10 31.15 30.29
5,602.89 2/28/11 31.61 30.75
5,602.75 6/21/11 31.75 30.89
5,602.40 9/20/11 32.10 31.24
5,602.40 12/21/11 32.10 31.24
5,601.70 3/27/12 32.80 31.94
5,601.67 6/28/12 32.83 31.97
5,600.50 9/27/12 34.00 33.14
5,601.74 12/28/12 32.76 31.90
5,598.60 3/28/13 35.90 35.04
5,597.18 6/27/13 37.32 36.46
5,597.36 9/27/13 37.14 36.28
5,597.60 12/20/13 36.90 36.04
5,598.00 3/27 /14 36.50 35.64
5,596.34 6/25/14 38.16 37.30
5,596.30 9/25/14 38.20 37.34
5,596.55 12/17/14 37.95 37.09
5,596.20 3/26/15 38.30 37.44
5,596.00 6/22/15 38.50 37.64
5,596.61 9/30/15 37.89 37.03
5,596.09 12/2/15 38.41 37.55
5,595.29 3/30/16 39.21 38.35
5,594.61 6/30/16 39.89 39.03
5,593.79 9/29/16 40.71 39.85
5,594.20 12/21/16 40.30 39.44
5,594.20 3/30/17 40.30 39.44
5,592.85 6/27/17 41.65 40.79
5,592.60 9/26/17 41.90 41.04
5,593.33 11/29/17 41.17 40.31
5,592.55 3/29/18 41.95 41.09
5,592.45 6/22/18 42.05 41.19
5,592.90 9/26/18 41.60 40.74
5,594.29 12/18/18 40.21 39.35
5,591.99 3/26/19 42.51 41.65
5,592.69 6/24/19 41.81 40.95
5,592.50 8/13/19 42.00 41.14
5,592.78 11/19/19 41.72 40.86
5,592.33 2/13/20 42.17 41.31
Water Levels and Data over Time
White Mesa Mill -Well TWN-3
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
5,591.78 5/5/20 42.72 41.86
5,591.67 9/22/20 42.83 41.97
5,592.09 12/30/20 42.41 41.55
Water Levels and Data over Time
White Mesa Mill -Well TWN-4
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,641.04 5,641.87 0.83 126.4
5,601.47 2/6/09 40.40 39.57
5,604.26 7/21/09 37.61 36.78
5,605.02 9/21/09 36.85 36.02
5,605.87 10/28/09 36.00 35.17
5,605.81 12/14/09 36.06 35.23
5,605.31 3/11/10 36.56 35.73
5,605.36 5/11/10 36.51 35.68
5,604.59 9/29/10 37.28 36.45
5,604.42 12/21/10 37.45 36.62
5,603.69 2/28/11 38.18 37.35
5,603.36 6/21/11 38.51 37.68
5,602.82 9/20/11 39.05 38.22
5,602.79 12/21/11 39.08 38.25
5,600.82 3/27/12 41.05 40.22
5,600.84 6/28/12 41.03 40.20
5,598.47 9/27/12 43.40 42.57
5,600.86 12/28/12 41.01 40.18
5,595.57 3/28/13 46.30 45.47
5,594.12 6/27/13 47.75 46.92
5,593.33 9/27/13 48.54 47.71
5,591.92 12/20/13 49.95 49.12
5,591.85 3/27/14 50.02 49.19
5,590.49 6/25/14 51.38 50.55
5,589.64 9/25/14 52.23 51.40
5,589.42 12/17/14 52.45 51.62
5,589.17 3/26/15 52.70 51.87
5,588.17 6/22/15 53.70 52.87
5,587.48 9/30/15 54.39 53.56
5,587.02 12/2/15 54.85 54.02
5,586.90 3/20/16 54.97 54.14
5,586.18 6/30/16 55.69 54.86
5,585.72 9/29/16 56.15 55.32
5585.42 12/21/16 56.45 55.62
5586.35 3/30/17 55.52 54.69
5585.09 6/27/17 56.78 55.95
5584.41 9/26/17 57.46 56.63
5584.07 11/29/17 57.80 56.97
5583.76 3/29/18 58.11 57.28
5583.47 6/22/18 58.40 57.57
5582.92 9/26/18 58.95 58.12
5582.66 12/18/18 59.21 58.38
5582.23 3/26/19 59.64 58.81
5581.97 6/24/19 59.90 59.07
5581.96 8/13/19 59.91 59.08
5581.68 11/19/19 60.19 59.36
5581.34 2/13/20 60.53 59.70
Water Levels and Data over Time
White Mesa Mill -Well TWN-4
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,641.04 5,641.87 0.83 126.4
5580.99 5/5/20 60.88 60.05
5580.45 9/22/20 61.42 60.59
5580.34 12/30/20 61.53 60.70
Water Levels and Data over Time
White Mesa Mill -Well TWN-6
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
5 663.03 5,664.94 1.91 131.91
5,589.52 8/25/09 75.42 73 .51
5,589.46 9/22/09 75.48 73.57
5,589.61 11/3/09 75.33 73.42
5,589.92 12/14/09 75.02 73.11
5,590.24 3/11/10 74.70 72.79
5,590.40 5/11/10 74.54 72.63
5,590.24 9/29/10 74.70 72.79
5,590.49 12/21/10 74.45 72.54
5,590.16 2/28/11 74.78 72.87
5,590.44 6/21/11 74.50 72.59
5,590.35 9/20/11 74.59 72.68
5,590.67 12/21/11 74.27 72.36
5,590.34 3/27/12 74.60 72.69
5,590.32 6/28/12 74.62 72.71
5,589.77 9/27/12 75.17 73.26
5,589.67 12/28/12 75.27 73.36
5,589.45 3/28/13 75.49 73.58
5,589.01 6/27/13 75.93 74.02
5,588.99 9/27/13 75 .95 74.04
5,588.15 12/20/13 76.79 74.88
5,588.50 3/27/14 76.44 74.53
5,588.03 6/25/14 76.91 75.00
5,587.74 9/25/14 77.20 75.29
5,587.69 12/17/14 77.25 75.34
5,587.29 3/26/15 77.65 75 .74
5,587.04 6/22/15 77.90 75.99
5,586.93 9/30/15 78.01 76.10
5,586.72 12/2/15 78.22 76.31
5,586.92 3/30/16 78.02 76.11
5,586.32 6/30/16 78.62 76.71
5,586.16 9/29/16 78 .78 76.87
5,586.03 12/21/16 78.91 77.00
5,586.40 3/30/17 78.54 76.63
5,605.99 6/27/17 58.95 57.04
5585.76 9/26/17 79.18 77.27
5585.59 11/29/17 79.35 77.44
5585.63 3/29/18 79.31 77.4
5585.59 6/22/18 79.35 77.44
5585.26 9/26/18 79.68 77.77
5585.27 12/18/18 79.67 77.76
5585.16 3/26/19 79.78 77.87
5585.05 6/24/19 79.89 77.98
5584.86 8/13/19 80.08 78.17
5585.14 11/19/19 79.80 77.89
5584.92 2/13/20 80.02 78.11
5585.27 5/5/20 79.67 77.76
Water Levels and Data over Time
White Mesa Mill -Well TWN-6
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
5,663.03 5,664.94 1.91 131.91
5584.46 9/22/20 80.48 78.57
5584.58 12/30/20 80.36 78.45
Water Levels and Data over Time
White Mesa Mill -Well TWN-7
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
5,647.39 5,649.26 1.87 107.2
5,552.56 08/25/09 96.70 94.83
5,558.34 09/21/09 90.92 89.05
5,558.82 11/10/09 90.44 88.57
5,558.96 12/14/09 90.30 88.43
5,559.54 03/11/10 89.72 87.85
5,559.60 05/11/10 89.66 87.79
5,559.83 09/29/10 89.43 87.56
5,559.00 12/21/10 90.26 88.39
5,559.68 02/28/11 89.58 87.71
5,560.43 06/21/11 88.83 86.96
5,560.46 09/20/11 88.80 86.93
5,560.78 12/21/11 88.48 86.61
5,560.92 03/27/12 88.34 86.47
5,560.87 06/28/12 88.39 86.52
5,561.40 09/27/12 87.86 85.99
5,561.50 12/28/12 87.76 85.89
5,562.01 03/28/13 87.25 85.38
5,562.21 06/27/13 87.05 85.18
5,562.41 09/27/13 86.85 84.98
5,562.23 12/20/13 87.03 85.16
5,562.85 03/27/14 86.41 84.54
5,562.95 06/25/14 86.31 84.44
5,563.06 09/25/14 86.20 84.33
5,563.21 12/17/14 86.05 84.18
5,563.33 03/26/15 85.93 84.06
5,563.46 06/22/15 85.80 83.93
5,563.64 09/30/15 85.62 83.75
5,563.88 12/02/15 85.38 83.51
5,564.19 03/30/16 85.07 83.20
5,563.97 06/30/16 85.29 83.42
5,564.21 09/29/16 85.05 83.18
5,564.46 12/21/16 84.80 82.93
5,564.96 03/30/17 84.30 82.43
5,564.81 . 06/27/17 84.45 82.58
5,565.46 09/26/17 83.80 81.93
5,565.45 11/29/17 83.81 81.94
5,566.11 03/29/18 83.15 81.28
5,566.21 06/22/18 83.05 81.18
5,566.42 09/26/18 82.84 80.97
5,566.09 12/18/18 83.17 81.30
5,566.67 03/26/19 82.59 80.72
5,566.93 06/24/19 82.33 80.46
5,567.28 08/13/19 81.98 80.11
5,567.26 11/19/19 82.00 80.13
5,567.12 02/13/20 82.14 80.27
5,567.14 05/05/20 82.12 80.25
Water Levels and Data over Time
White Mesa Mill -Well TWN-7
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
5,647.39 5,649.26 1.87 107.2
5,567.98 09/22/20 81.28 79.41
5,568.38 12/30/20 80.88 79.01
Water Levels and Data over Time
White Mesa Mill -Well TWN-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
5,647.80 5,649.53 1.73 124.73
5 586.18 11/4/09 63.35 61.62
5,586.51 12/14/09 63.02 61.29
5,586.71 3/11/10 62.82 61.09
5,586.72 5/11/10 62.81 61.08
5,586.53 9/29/10 63.00 61.27
5,586.80 12/21/10 62.73 61.00
5,586.74 2/28/11 62.79 61.06
5,586.84 6/21/11 62.69 60.96
5,586.73 9/20/11 62.80 61.07
5,586.98 12/21/11 62.55 60.82
5,587.07 3/27/12 62.46 60.73
5,587.10 6/28/12 62.43 60.70
5,587.07 9/27/12 62.46 60.73
5,587.33 12/28/12 62.20 60.47
5,587.43 3/28/13 62.10 60.37
5,587.43 6/27/13 62.10 60.37
5,587.72 9/27/13 61.81 60.08
5,587.22 12/20/13 62.31 60.58
5,587.91 3/27/14 61.62 59.89
5,587.74 6/25/14 61.79 60.06
5,587.76 9/25/14 61.77 60.04
5,587.88 12/17/14 61.65 59.92
5,587.97 3/26/15 61.56 59.83
5,587.98 6/22/15 61.55 59.82
5,588.18 9/30/15 61.35 59.62
5,588.23 12/2/15 61.30 59.57
5,588.70 3/30/16 60.83 59.10
5,588.31 6/30/16 61.22 59.49
5,588.36 9/29/16 61.17 59.44
5,588.43 12/21/16 61.10 59.37
5,588.96 3/30/17 60.57 58.84
5,589.07 6/27/17 60.46 58.73
5588.86 9/26/17 60.67 58.94
5588.82 11/29/17 60.71 58.98
5589.12 3/29/18 60.41 58.68
5589.19 6/22/18 60.34 58.61
5589.12 9/26/18 60.41 58.68
5589.20 12/18/18 60.33 58.60
5589.32 3/26/19 60.21 58.48
5589.40 6/25/19 60.13 58.40
5589.32 8/13/19 60.21 58.48
5589.59 11/19/19 59.94 58.21
5589.73 2/13/20 59.80 58.07
5590.17 5/5/20 59.36 57.63
5589.67 9/22/20 59.86 58.13
5590.05 12/30/20 59.48 57.75
Water Levels and Data over Time
White Mesa Mill -Well TWN-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
5,651.07 5,652.70 1.63 94.63
5,603.34 11/4/09 49.36 47.73
5,603.56 12/14/09 49.14 47.51
5,603.84 3/11/10 48.86 47.23
5,604.31 5/11/10 48.39 46.76
5,604.28 9/29/10 48.42 46.79
5,604.39 12/21/10 48.31 46.68
5,604.20 2/28/11 48.50 46.87
5,604.55 6/21/11 48.15 46.52
5,604.74 9/20/11 47.96 46.33
5,604.94 12/21/11 47.76 46.13
5,604.84 3/27/12 47.86 46.23
5,604.85 6/28/12 47.85 46.22
5,604.99 9/27/12 47.71 46.08
5,605.10 12/28/12 47.60 45.97
5,605.22 3/28/13 47.48 45.85
5,605.11 6/27/13 47.59 45.96
5,605.39 9/27/13 47.31 45.68
5,604.99 12/20/13 47.71 46.08
5,605.71 3/27/14 46.99 45.36
5,605.16 6/25/14 47.54 45.91
5,605.10 9/25/14 47.60 45.97
5,605.25 12/17/14 47.45 45.82
5,605.04 3/26/15 47.66 46.03
5,604.99 6/22/15 47.71 46.08
5,605.05 9/30/15 47.65 46.02
5,604.96 12/2/15 47.74 46.11
5,605.25 3/30/16 47.45 45.82
5,605.00 6/30/16 47.70 46.07
5,605.00 9/29/16 47 .70 46.07
5,605.00 12/21/16 47.70 46.07
5,605.43 3/30/17 47.27 45.64
5,605.20 6/27/17 47.50 45.87
5605.00 9/26/17 47.70 46.07
5605.02 11/29/17 47.68 46.05
5605.11 3/29/18 47.59 45.96
5605.19 6/22/18 47.51 45.88
5604.99 9/26/18 47.71 46.08
5605.18 12/19/18 47.52 45.89
5605.06 3/26/19 47.64 46.01
5604.96 6/24/19 47.74 46.11
5604.87 8/13/19 47.83 46.20
5605.19 11/19/19 47.51 45.88
5605.02 2/13/20 47.68 46.05
5605.30 5/5/20 47.40 45.77
5604.85 9/22/20 47.85 46.22
5604.99 12/30/20 47.71 46.08
Water Levels and Data over Time
White Mei,a Mill -Well TWN -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
5,643.95 5,645.45 1.50 147
5,586.85 11/2/09 58.60 57.10
5,600.14 12/14/09 45.31 43.81
5,587.36 3/11/10 58.09 56.59
5,587.71 5/11/10 57.74 56.24
5,587.50 9/29/10 57.95 56.45
5,607.66 12/21/10 37.79 36.29
5,587.35 2/28/11 58.10 56.60
5,587.71 6/21/11 57.74 56.24
5,587.65 9/20/11 57.80 56.30
5,587.95 12/21/11 57.50 56.00
5,587.05 3/27/12 58.40 56.90
5,587.05 6/28/12 58.40 56.90
5,587.50 9/27/12 57.95 56.45
5,587.50 12/28/12 57.95 56.45
5,587.32 3/28/13 58.13 56.63
5,586.95 6/27/13 58.50 57.00
5,587.02 9/27/13 58.43 56.93
5,586.26 12/20/13 59.19 57.69
5,586.87 3/27/14 58.58 57.08
5,586.23 6/25/14 59.22 57.72
5,586.02 9/25/14 59.43 57.93
5,585.99 12/17/14 59.46 57.96
5,585.66 3/26/15 59.79 58.29
5,585.45 6/22/15 60.00 58.50
5,585.37 9/30/15 60.08 58.58
5,585.24 12/2/15 60.21 58.71
5,585.38 3/30/16 60.07 58.57
5,584.85 6/30/16 60.60 59.10
5,584.69 9/29/16 60.76 59.26
5,584.60 12/21/16 60.85 59.35
5,584.99 3/30/17 60.46 58.96
5,584.65 6/27/17 60.80 59.30
5584.36 9/26/17 61.09 59.59
5584.24 11/29/17 61.21 59.71
5584.25 3/29/18 61.20 59.70
5584.23 6/22/18 61.22 59.72
5583.92 9/26/18 61.53 60.03
5583.85 12/18/18 61.60 60.10
5583.72 3/26/19 61.73 60.23
5583.69 6/24/19 61.76 60.26
5583.76 8/13/19 61.69 60.19
5583.72 11/19/19 61.73 60.23
5583.54 2/13/20 61.91 60.41
5583.34 5/5/20 62.11 60.61
5583.15 9/22/20 62.30 60.8
5583.26 12/30/20 62.19 60.69
Water Levels and Data over Time
White Mesa Mill-Well TWN-19
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
5,659.59 5,661.36 1.77 107.77
5,606.17 11/2/09 55.19 53.42
5,606.70 12/14/09 54.66 52.89
5,607.22 3/11/10 54.14 52.37
5,607.89 5/11/10 53.47 51.70
5,607.98 9/29/10 53.38 51.61
5,608.41 12/21/10 52.95 51.18
5,608.49 2/28/11 52.87 51.10
5,608.60 6/21/11 52.76 50.99
5,609.17 9/20/11 52.19 50.42
5,608.90 12/21/11 52.46 50.69
5,608.87 3/27/12 52.49 50.72
5,608.86 6/28/12 52.50 50.73
5,608.86 9/27/12 52.50 50.73
5,608.86 12/28/12 52.50 50.73
5,609.17 3/28/13 52.19 50.42
5,608.88 6/27/13 52.48 50.71
5,608.92 9/27/13 52.44 50.67
5,608.46 12/20/13 52.90 51.13
5,608.88 3/27/14 52.48 50.71
5,608.33 6/25/14 53.03 51.26
5,608.11 9/25/14 53.25 51.48
5,608.36 12/17/14 53.00 51.23
5,607.96 3/26/15 53.40 51.63
5,607.98 6/22/15 53.38 51.61
5,608.06 9/30/15 53.30 51.53
5,607.88 12/2/15 53.48 51.71
5,608.41 3/30/16 52.95 51.18
5,611.39 6/30/16 49.97 48.20
5,607.90 9/29/16 53.46 51.69
5,608.07 12/21/16 53.29 51.52
5,608.44 3/30/17 52.92 51.15
5,608.07 6/27/17 53.29 51.52
5608.06 9/26/17 53.30 51.53
5607.91 11/29/17 53.45 51.68
5608.00 3/28/18 53.36 51.59
5607.71 6/21/18 53.65 51.88
5607.50 9/26/18 53.86 52.09
5607.94 12/19/18 53.42 51.65
5607.42 3/26/19 53.94 52.17
5607.46 6/25/19 53.90 52.13
5607.39 8/13/19 53.97 52.20
5607.84 11/19/19 53.52 51.75
5607.69 2/13/20 53.67 51.90
5607.57 5/5/20 53.79 52.02
5607.46 9/22/20 53.90 52.13
5607.66 12/30/20 53.70 51.93
Water Levels and Data over Time
White Mesa Mill · Well MW -30
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,613.34 5,6 14.50 l.16 110
5,534.92 l 0/24/06 79.58 78.42
5,535.09 3/16/07 79.41 78.25
5,535.46 8/27/07 79.04 77.88
5,535.06 10/15/07 79.44 78.28
5,535.78 3/15/08 78.72 77.56
5,536.26 6/15/08 78.24 77.08
5,536.35 9/15/08 78.15 76.99
5,536.68 11/15/08 77.82 76.66
5,535.42 3/15/09 79.08 77.92
5,537.11 6/30/09 77.39 76.23
5,536.93 9/10/09 77.57 76.41
5,537.23 12/11/09 77.27 76.11
5,537.59 3/11/10 76.91 75.75
5,537.85 5/11/10 76.65 75.49
5,538.37 9/29/10 76.13 74.97
5,537.70 12/21/10 76.8 75.64
5,537.67 2/28/11 76.83 75.67
5,538.31 6/21/11 76.19 75.03
5,538.15 9/20/11 76.35 75.19
5,538.42 12/21/11 76.08 74.92
5,538.54 3/27/12 75.96 74.8
5,538.60 6/28/12 75.9 74.74
5,538.68 9/27/12 75.82 74.66
5,538.99 12/28/12 75.51 74.35
5,539.25 3/28/13 75.25 74.09
5,539.05 6/27/13 75.45 74.29
5,539.60 9/27/13 74.90 73.74
5,539.67 12/20/13 74.83 73.67
5,539.77 3/27/14 74.73 73.57
5,539.40 6/25/14 75.10 73.94
5,539.19 9/25/14 75.31 74.15
5,539.30 12/17/14 75.20 74.04
5,539.01 3/26/15 75.49 74.33
5,538.99 6/22/15 75.51 74.35
5,539.10 9/30/15 75.40 74.24
5,538.90 12/2/15 75 .60 74.44
5,539.53 3/30/16 74.97 73.81
5,539.11 6/30/16 75.39 74.23
5,539.05 9/29/16 75.45 74.29
5,539.06 12/21/16 75.44 74.28
5,539.81 3/30/17 74.69 73.53
5,539.60 6/27/17 74.90 73.74
5539.40 9/27/17 75.10 73.94
5539.30 11/30/17 75.20 74.04
5539.55 3/29/18 74.95 73.79
5539.63 6/22/18 74.87 73.71
5539.40 9/26/18 75.10 73.94
5539.59 12/17/18 74.91 73.75
5539.42 3/26/19 75.08 73.92
5539.70 6/24/19 74.80 73.64
5539.45 8/13/19 75.05 73.89
5539.53 11/19/19 74.97 73.81
5539.57 2/13/20 74.93 73.77
5539.27 5/5/20 75.23 74.07
Water Levels and Data over Time
White Mesa Mill -Well MW-30
Total or
Measuring Measured Total
Water Land Point Depth to Depth to Total
Elevation Surface Elevation Length Of Date Of Water Water Depth Of
(WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well
5,613.34 5,614.50 1.16 IIO
5539.25 9/22/20 75.25 74.09
5539.41 12/30/20 75.09 73.93
Water Levels and Data over Time
White Mesa Mill -Well MW-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
5.615.26 5.616.40 1.14 130
5,544.07 10/24/06 72.33 71.19
5,544.45 3/16/07 71.95 70.81
5,536.94 8/27/07 79.46 78.32
5,544.62 10/15/07 71.78 70.64
5,545.37 3/15/08 71.03 69.89
5,544.50 6/15/08 71.90 70.76
5,545.94 9/15/08 70.46 69.32
5,546.42 11/15/08 69.98 68.84
5,546.03 3/15/09 70.37 69.23
5,546.65 6/30/09 69.75 68.61
5,546.45 9/10/09 69.95 68.81
5,546.75 12/11/09 69.65 68.51
5,547.09 3/11/10 69.31 68.17
5,547.41 5/11/10 68.99 67.85
5,547.28 9/29/10 69.12 67.98
5,547.45 12/21/10 68.95 67.81
5,547.37 2/28/11 69.03 67.89
5,547.96 6/21/11 68.44 67.3
5,547.65 9/20/11 68.75 67.61
5,548.34 12/21/11 68 .06 66.92
5,548.30 3/27/12 68.10 66.96
5,548.40 6/28/12 68.00 66.86
5,548.59 9/27/12 67.81 66.67
5,548.91 12/28/12 67.49 66.35
5,549.14 3/28/13 67.26 66.12
5,548.90 6/27/13 67 .50 66.36
5,549.25 9/27/13 67.15 66.01
5,549.16 12/20/13 67.24 66.10
5,548.95 3/27/14 67.45 66.31
5,548.60 6/25/14 67.80 66.66
5,548.19 9/25/14 68.21 67.07
5,548.25 12/17/14 68.15 67.01
5,548.14 3/26/15 68.26 67.12
5,547.85 6/22/15 68.55 67.41
5,548.00 9/30/15 68.40 67.26
5,547.84 12/2/15 68.56 67.42
5,548.35 3/30/16 68.05 66.91
5,548.00 6/30/16 68.40 67.26
5,547.80 9/29/16 68.60 67.46
5,547.80 12/21/16 68.60 67.46
5,548.30 3/30/17 68.10 66.96
5,548.10 6/27/17 68.30 67.16
5,547.93 9/27/17 68.47 67.33
5,547.80 11/30/17 68.60 67.46
5,547.92 3/29/18 68.48 67.34
5,547.95 6/22/18 68.45 67.31
5,547.69 9/26/18 68.71 67.57
5,547.82 12/17/18 68.58 67.44
5,547.56 3/26/19 68.84 67.70
5,547.68 6/24/19 68.72 67.58
5,547.56 8/13/19 68.84 67.70
5,547.58 11/19/19 68.82 67.68
5,547.59 2/13/20 68.81 67.67
5,547.92 5/5/20 68.48 67.34
5,547.18 9/22/20 69.22 68.08
Water Levels and Data over Time
White Mesa Mill -Well MW-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
5,615.26 5,616.40 1.14 130
5,547.29 12/30/20 69.1 l 67.97
TabG
Laboratory Analytical Reports
3440 South 700 West
Salt Lake City, UT 84119
Phone:[phone]
Toll Free: [phone]
Fax: (80 l) 263-8687
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
INORGANIC ANALYTICAL REPORT
Client: Energy Fuels Resources, Inc.
Project: 4th Quarter Nitrate 2020
LabSampleID: 2011423-010
Client Sample ID: PIEZ-01_11132020
Collection Date: 11 /13/2020 913h
Received Date: 11/17/2020 1045h
Analytical Results
Date
Compound Units Prepared
Chloride mg/L
Nitrate/Nitrite (as N) mg/L
Date
Analyzed
11/20/2020 253h
11/19/2020 1539h
Contact: Tanner Holliday
Method Reporting Analytical
Used Limit Result Qua!
E300.0 1.00 63.9
E353 2 0.100 7.51
Report Date: 12/1/2020 Page 13 of 19
All analy!>i..\s npplicablc 10 the C\\'A. SOWA. and RCRA arc pcrfon11cd in accort.lancc lo NELAC protocols rcnincnl sampling information is located 011 Lhc auachcd COC. Con!idcnlial Dusincss lnrormaLion: This rcpo11 is prnvick<l rnr the cxclusi,l' use or lhc
ad,lr.:sscc. Pri,·ilcgcs or J.ubsi.;,qucnl use or 1hc n::unc or Lhis company or ;:my mcmhcr or iLs staff, or rcprodu-C'tkin of Lhis report in connection with Lhc adveniscmcnl. promotion or sale or any product or process, or in connccLion with 1hc rc·pub1ii.:n1ion or lhis. 1cprn L
fo1 any puipu~c 01hcr than for Lile nJrlrcsscc will be granll •. '<1 only on l°Ontncl This company accepL,; no n;~nibilily cxccpl for the due perfonnancc or inspection and/or analysis in good railh and ::iccording to Lhc rules or lhc trade and or science.
Anu}rle.:m West
ANA i Y"l'ICAl ~ .-ao•AT01tlf9
3440 South 700 West
Salt Lake City, UT 84119
Phone: [phone]
Toll Free: [phone]
Fax: (80 l) 263-8687
e-mail: awal(ii)awal-labs.com
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
INORGANIC ANALYTICAL REPORT
Client: Energy Fuels Resources, Inc.
Project: 4th Quarter Nitrate 2020
Lab Sample ID: 2011423-011
Client Sample ID: PIEZ-02_11132020
Collection Date: 11/13/2020 903h
Received Date: 11/17/2020 1045h
Analytical Results
Date
Compound Units Prepared
Chloride mg/L
Nitrate/Nitrite (as N) mg/L
Date
Analyzed
l 1/20/2020 309h
11/19/2020 1540h
Contact: Tanner Holliday
Method Reporting Analytical
Used Limit Result Qual
E300.0 1.00 12.9
E353.2 0.100 0.544
Report Date: 12/1/2020 Page 14 of 19
All 1uul)"'$nrrhrnhh.• 1n 1hc ( \\'A. SOW,\. amt k RA C11\: r,crrnimC'd in n«orc~m('c 1,,NE"LAC _,mro.."'CII P'1'1 nnu 1unpll11i: rnro,m.11lon rt' loc1ul.'tluo 1.hc :nuw:lh.'<I toe. Cnnndcnt1:i.1 011)}1\C:S'-ll'ff(lmn·uiont lh1fli. n=f1Qf11ft p,ro·,okJ for 1hc:\•,i•1u~1, · u"' n1'111i.'.
,.11llln: ~c"·· l1m •k~C"i of ,nh,i.:-."t>Cnl U'\o\" 11f 1hc n.1nH." or1hli~u11111.1.ny or .1ny 11\l:.111t1e,'f C.\)' It, &.1aff. or tcr,a>ductlon of thb. h.lMJl't in CJ'JnJk."(tion wilh 4h1,• :ul,·crtl~ulf.:m. pnJfl)01100 or "'11'1 o("any JKOCluct or p,1'"1-.,. u, In l."Ot1ftl.'l'1ion ~nb 1hc-'"'"puhll\',mon 11r,r,1 1\1"~4
(M :my r•m)h.'IM.' ,11hcr dum fot 1.h..: n.dtl!'\.,...._,. "i11 ~ ,ttn11k,I mtl)I c,n 1:001111:1. Tht"I, co'l'nr,ri11) ;\\·,·~ph oo n-~mn\lbilhy ~cq1\ r" 1h,· tlu,: 1>er(on11)~cc ur tr1'1,"'-~inu nnJ..'oto."'1Jy•ls h1 ~'itJ fahll MU Qc,;Ontmt; h> 1bc rules. u(1hc 111111\' 0.1,J ,,r ,cn.-nrt
3440 South 700 West
Salt Lake City, UT 84119
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
INORGANIC ANALYTICAL REPORT
Client: Energy Fuels Resources, Inc.
Project: 4th Quarter Nitrate 2020
Lab Sample ID: 2011423-012
Client Sample ID: PIEZ-03A_l 1 l32020
Collection Date: 11/13/2020 928h
Received Date: 11/17/2020 1045h
Analytical Results
Date
Compound Units Prepared
Chloride mg/L
Nitrate/Nitrite (as N) mg/L
Date
Analyzed
11/20/2020 326h
11/19/2020 1541h
Contact: Tanner Holliday
Method Reporting Analytical
Used Limit Result Qua(
E300 0 2.00 72.8
E353.2 0.100 13.0
Report Date: 12/1/2020 Page 15 ofl9
All ,,11:1ly~~ =i11rh~hlc Lo lh,: t W SU\\ A.1md H.('RA iU'('p('l'fom~Hn acc-otd,'.mt'"c If' r,,.::E.t.AC pn,1001)~ 11~n1111.·.nu.•un11Hne information is localed on the allachcd COC. Confidential Business Information: This rcpor'L is provided for the cxclu::.i,l· use oi'tlic
:idtir1.~ • l'n\ lh*~ of ~uh'K.,tttctll uw ol the n,mtc ol thil i=o1npany o,. t111y 111':lllhl."t' of its ~,arr. nt 1i::pu~V1.'1100 of lh \ ,q,,utt in conn eel ion with the advcrtiscmcnL promotion or ~le of any product or process. or in connection with 1hc rc.puhlicalion uf 1his ICfltll L
IOr a.ny ponx\W nJlicr 1han for the llf..ld~ ,, IU IK ,g,,01t4-J t\111)• u11 t·1u,1a<1~ Thh tomp.'Ul)' :i.ci:(fll~ nor ~pcllK!blllty c,cC\.i,t fot the clue perfonnancc of inspec1ion and/or analysis in good faith and according to 1hc rules of the trade .ind of $.Cicncc.
.A.1ner1can West
ANAi YT lCAl lA&OIIATORlll
3440 South 700 West
Salt Lake City, UT 841 l 9
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
INORGANIC ANALYTICAL REPORT
Client: Energy Fuels Resources, Inc. Contact: Tanner Holliday
Project: 4th Quarter Nitrate 2020
Lab Sample ID: 2011423-004
Client Sample ID: TWN-01_11122020
Collection Date: 11/12/2020 912h
Received Date: 11/17/2020 1045h
Analytical Results
Date Date Method Reporting Analytical
Compound Units Prepared Analyzed Used Limit Result Qual
Chloride mg!L l J/20/2020 005h 6300,0 1.00 29.2
Nitrate/Nitrite ( as N) mg!L l l/19/2020 1525h E353.2 0.100 1.89
Report Date: 12/l /2020 Page 7 of 19
All analy!<.cs applicable 10 the CWA. SD\V A. and RCRA arc pcr1Dnncd in accmdancc 10 NELAC protocols. Pertinent sampling infonna1ion is locatctl on the auachcd COC Con!idcnlial l3usincss lnfo1 nmion: This rcpo1 t is prm idc1t fo1 the c:,clusi,c usl' ol the
add1csscc P1 i, ilc!!cs <"ll 1-ubscqucnt use of lhc name ol 1his company or any mcmhc1•ori1s s1aff. or reproduction of this report in connection with the adveniscmcnt. promotion or sale or any produc1 or jlroccss. or in connection with the rc-pubfo::;11ion nl' thi<.1q,n11 ro .. any purp()!.c 01her than for the mJdn.-sscc will be granted only on ennlael This company occcpl{, no responsibility except IOr the due perfonnanee of inspection and/or analysis in good faith and according to the rules of 1hc lradc :lnd of i;cicncc.
3440 South 700 West
Salt Lake City, UT 84119
Phone:[phone]
Toll Free: [phone]
Fax: [phone]
e-mail: awal(l]awal-labs.com
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
INORGANIC ANALYTICAL REPORT
Client: Energy Fuels Resources, Inc. Contact: Tanner Holliday
Project: 4th Quarter Nitrate 2020
Lab Sample ID: 2011423-005
Client Sample ID: TWN-02_11122020
Collection Date: l l/12/2020 955h
Received Date: l l/17/2020 1045h
Analytical Results
Date Date Method Reporting Analytical
Compound Units Prepared Analyzed Used Limit Result Qual
Chloride mg/L 11/20/2020 022h E300.0 1.00 53.5
Nitrate/Nitrite (as N) mg/L 11/19/2020 1526h E353.2 0.200 12.0
Report Date: l 2/l /2020 Page 8 of 19
All ;uml)"""~ nppln'.ablc co ttJ,c ( WA.. Sl)Wt\.. tirKS R(k--\ ~re 1w-1fonurJ in OCC'On.Lwce to Nl!LAC rmlOi."OIJ. Pcrtincn1 .,..,nipl/nn inCormation is localed on lhc allachcd COC. Con [h.lcntial l3u,IIM.!£S lnronuat on 1 hk h'.lll.)11 ls pnn f'lcJ riY IIK-c.,t"fu:m:,.• us~' ~I th~
adih~<c."I..' l>rivil~,: .. •,-or ~11l~C'\fl1c11t m.c t1rthc llo'luK" or ihi, cump;:ariy or '11\y 11111:n~ o1 1\fi, ~rr. °' rcprodudMl(\ of th \ ,cpatt (rt conncclion with the advcrtisc111cnt. promotion or so.le or any 1wod11c, °' l>flK'Q or in (\lQrJe-.•tian wilh lhri: t ........ ,'1.,hfn.'.llllon of this rcpt\1 t
for fl) ru11\tlsc <tthcr 1han ro, th~ add~\CC' ,1.--tU l'K-i;r,111ll'll OUI)' 00 ..:-nnJ~t. Thh. eutnr;my a~l"rb 11'11 l\.."!.pdm;lhility ('XCJ:pl tot lhe due perfonnancc of inspe.clion and/or analysis in goot.l faith and .n.ti.'Otdn1; hJ the 1'110 nf1he ln'llk fl1'1U o(s.ri,•ntc.
l'.\na.:ric.:m West
ANAt 1flCAL t•eoAATO"U.8
3440 South 700 West
Salt Lake City, UT 84119
Phone:[phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
INORGANIC ANALYTICAL REPORT
Client: Energy Fuels Resources, Inc. Contact: Tanner Holliday
Project: 4th Quarter Nitrate 2020
Lab Sample ID: 2011423-009
Client Sample ID: TWN-03_1 l 132020
Collection Date: I 1/13/2020 852h
Received Date: 11/17/2020 1045h
Analytical Results
Date Date Method Reporting Analytical
Compound Units Prepared Analyzed Used Limit Result Qual
Chloride mg/L I ln0/2020 236h E300.0 2.00 137
Nitrate/Nitrite (as N) mg/L I l/19/2020 [533h E353.2 0.200 18.0
Report Date: 12/1/2020 Page 12 of 19
All 1111.'tl) "':-opr,licoblc lo Lhc C\\'A, SOW,\, a11d RCRA arc pcrfmmcd in accordance 10 NELAC prolocols Pcr1incnl sampling infonnation is localed on the iltlachcd COC. Confidcnlial Ousinc:ss ln(orm.1.t£on: Tbrs n.'('Oll is pmvhk'(l ri,r 1hr i:xcluJ.h"-' ll<iC o! the
add1,.~-..x. Pri\'ilcgcs or !i.Ubsi.:quc11t usc of the name or 1his company or nny mcmhcr ol' iLs sLalT. or n:pmJui:tlon of Lhi~ rcpon in conncclion wi1h lhc advcrti~cmcnt, prom01ion or sale of any produ 1 °' j)tl.)Ci:U. or !1, con"'-"Clion wi1h 1t1 n.:-pi,hhnu.Mn or this r\:pl111
fo1 any purr,.l$.C olhcr 1han for 1hc mldrc..-.scc will~ t;rnnll'd only on contact This compuny a~cpt!i no l'\'1il0mihili1y cxccpl t'or the due pcrfonmmcc of inspcc1ion il.l'ld/or an:i.lysis in good foith and ilCTOl'1fln~ "' d~· rnl~vflhc 1radc 1111d 1,r:J.Cu'n(1,•
3440 South 700 West
Salt Lake City, UT 84119
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
INORGANIC ANALYTICAL REPORT
Client: Energy Fuels Resources, Inc.
Project: 4th Quarter Nitrate 2020
Lab Sample ID: 2011423-003
Client Sample ID: TWN-04_ 11122020
Collection Date: 11/12/2020 840h
Received Date: 11/17/2020 1045h
Analytical Results
Date
Compound Units Prepared
Chloride mg/L
Nitrate/Nitrite (as N) mg/L
Date
Analyzed
11/19/2020 2348h
11/19/2020 1524h
Contact: Tanner Holliday
Method Reporting Analytical
Used Limit Result Qual
E300,0 1.00 22.8
E353.2 0.100 1.18
Report Date: 12/1/2020 Page 6 of 19
All analysl'S arr,licablc to the C\\'i\, SDWA, and RCRA arc pcrfonncd in ncconlancc to NELAC protocols. Pcr1inc11L sampling [nfonnation is located on the aLLachcd CDC, ConlidcnLial Business Jnfonnatiou: This rcpo1L is prO\ idcd ror the cxC'lusi,c u~l· ot lh.'
nl1drcssi:c l'rivilc~~s ol subscquc11L use or the name ol' this company or any incmhcr ol' its staff, or reproduction or this rcpon in conncc1ion wilh the advertisement. promotion or sale or any producL or process. or in connection with 1hc rL'-publii.::11ion 01 thi~ rcpm 1
fl)l any purpt)SC othi:1 than for thl' nddrcsscc will be granted only on contacL This company acccpL'> no rcspousibiliLy except for the ctuc pcrfonmmcc or inspection and/or analysis in goml fai1h and according lo lhc rules of the 1radc a111i l)rscicncc
3440 South 700 West
Salt Lake City, UT 84119
Phone: (80 l) 263-8686
Toll Free: [phone]
Fax: (80 I) 263-8687
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
INORGANIC ANALYTICAL REPORT
Client: Energy Fuels Resources, Inc.
Project: 4th Quarter Nitrate 2020
Lab Sample ID: 2011423-008
Client Sample ID: TWN-07 _11132020
Collection Date: 11/13/2020 840h
Received Date: 11/17/2020 1045h
Analytical Results
Date
Compound Units Prepared
Chloride mg/L
Nitrate/Nitrite (as N) mg/L
Date
Analyzed
l 1/20/2020 2 l 9h
11/19/2020 1532h
Contact: Tanner Holliday
Method Reporting Analytical
Used Limit Result Qua)
E300.0 1.00 121
E353.2 0.200 11.8
Report Date: 12/1 /2020 Page 1 I of 19
All analyses applicable 10 1hc CWA. SOWA. and ltCRA arc pcrfonncd in nccorJancc 10 NELAC pmlocols. Pcnincnt sampling information is localed on the auachcd C:OC. Confidcn1ial Business Jnfonnation: This rcpo11 is pro\'iclcd for the cxclusi,c use ol 1h.:
::tdd1es~cc. Pri\'ilcgi:s ol subscquc1u use of 1hc name ol'lhis l.'ornpany or any member ot"its s1atr. or rcproduc1io11 of this report in connection wilh the advertisement promotion or sale or any product or process. or in connection with the rc-puhlicntion of 1his 1cr111t
101 any pu1posc t11hcr 1han for Lhi.: addressee will be granlcd only on coruact. Thi.~ coinp:iny aci.:cplS no rc.~po11sibili1y except for 1hc due perfonnancc of inspection and/or analysis in good failh and according Lo the rules of Lhc 1ratlc and ofscicnc1,:
3440 South 700 West
Salt Lake City, UT 84119
Phone:[phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
INORGANIC ANALYTICAL REPORT
Client: Energy Fuels Resources, Inc.
Project: 4th Quarter Nitrate 2020
Lab Sample ID: 2011423-002
Client Sample ID: TWN-18 _ 11122020
Collection Date: 11/12/2020 756h
Received Date: 11/17/2020 1045h
Analytical Results
Date
Compound Units Prepared
Chloride mg/L
Nitrate/Nitrite (as N) mg/L
Date
Analyzed
11/19/2020 2332h
11/19/2020 1523h
Contact: Tanner Holliday
Method Reporting Analytical
Used Limit Result Qual
E300.0 1.00 42.3
E353.2 0.100 0.208
Report Date: 12/1/2020 Page 5 of 19
All anal} l,i::s appli.:ablc to lhc CWA, SOWA. and RCRA arc pcrfOnncd in acco«tance 10 NELAC prolocols. Pcniocm sampling information is located on lhc auachcd COC. Confidcnlial Business lnfonnation: This rcrrn I is pnwidcd fo1 the cxdush c usL· ol''d1L~
ad~lresscc. Privileges or suhscqucnL usc or1he name or Lhis company or any member ol"iLs staff. or rcproducLion of Lhis report in conncclion with Lhc advcrtisc111en1, promotion or sale or any producl or process, or in connccLion wilh 1hc rc-publil.:aLion ur this rqt<11i
101 nny pu1 pose 01hc1· 1han f'or Lile aUdrcsscc \\ ill be granted only on con111cL This company acccpL~ no responsibility cxccpl l'or Lh¢ due perfonnancc of inspeclion and/or analysis in goo<l faiLh nnd according lo the rules or1hc lraclc nnd or scicm.:c
3440 South 700 West
Salt Lake City, UT 84119
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
INORGANIC ANALYTICAL REPORT
Client: Energy Fuels Resources, Inc.
Project: 4th Quarter Nitrate 2020
Lab Sample ID: 2011423-001
Client Sample ID: TWN-18R_l l 122020
Collection Date: l l/12/2020 655h
Received Date: 11/17/2020 I 045h
Analytical Results
Date
Compound Units Prepared
Chloride mg/L
Nitrate/Nitrite (as N) mg/L
Date
Analyzed
l l/19/2020 2315h
11/19/2020 1519h
Contact: Tanner Holliday
Method Reporting Analytical
Used Limit Result Qual
E300 0 1.00 < 1.00
E353.2 0.100 < 0.100
Report Date: I 2/1/2020 Page 4 of 19
All rinrtl)!-CS applicable 10 1hc C\\'A. SOWA, and RCRA a~ pcrronncd in accor<lancc to NELAC protocols Pertinent sa111pling information is localed 011 lhc anachcd COC Confidential Business lnfom1ation: This reran is provided for 1hc c.,.clu_,.;\t.. USl' ol the
addro:s!'!i..'i.:. l'rivilcgcs or ~11bscquc111 ,,~ a(1hc name or this company or any mcmt-icr orits staff, or rcp(ilClu~·1k'n or Lhis report in connection wilh 1hc advcrtiscmcn1, promotion or sale of any producL or process, or in connccLion \\ ith 1hc rc-publil:a1ion nl thi~ a:pn1 l
ror :my purrosc other ch~n for 1hc nl1d1Q.s;...'\:' \Viii be granted only on conlacL This company accepts no t,.'J,f)(llru.ibilily except for the due: perfonnancc or inspection nnd/or analysis in good faith and accordins 10 1hc rules of lhc trade and l)rscicm:t:,
INORGANIC ANALYTICAL REPORT
Client: Energy Fuels Resources, Inc.
Project: 4th Quarter Chloroform 2020
Lab Sample ID: 2010937-013
Client Sample ID: TW4-22_10282020
ANALVTlcAL LAB0RAr0R1Es Collection Date: 10/28/2020 1055h
3440 South 700 West
,alt Lake City, UT 84119
Phone:[phone]
Toll Free: [phone]
Fax: [phone]
~-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Received Date: I 0/29/2020 1204h
Analytical Results
Date
Compound Units Prepared
Chloride mg/L
Nitrate/Nitrite (as N) mg/L
Contact: Tanner Holliday
Date Method Reporting Analytical
Analyzed Used Limit Result Qua)
11/9/2020 2002h E300.0 20.0 523
10/31/2020 1817h E353.2 0.500 64.9
Report Date: 11/13/2020 Page 18 of46
All anal) ses applicable to lhc CWA. SOWA. and RCRA are performed m accordance lo NELAC prolocols Pe11inenl sampling informal.ion is locoLed on lhe altached COC Confidential Business lnfo1 malion: This report is pro\'ided for the exclusive use of the
~ctdressee Pri\ ile~es orsub~seq~enl ~;'e or lhe ~~ne of this
0
COl~pany or an) ~'!lber ofils slnff, or reproductio~ ~f lhis repo~ in ~0'1!1ectionr \\ill1 the a~\'ertisemenl. p~~motio.n ~r ~ale o[?1!Y._~rodi~c1 or P\?CCSS, ~r in ~onn:c~ion w!lh 1h~ n~_-publicntiOll of this reporl
3440 South 700 West
,alt Lake City, UT 84119
Phone: [phone]
foll Free: [phone]
Fax: [phone]
:-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
INORGANIC ANALYTICAL REPORT
Client: Energy Fuels Resources, Inc. Contact: Tanner Holliday
Project: 4th Quarter Chloroform 2020
Lab Sample ID: 2010937-002
Client Sample ID: TW4-24_10282020
Collection Date: 10/28/2020 1045h
Received Date: 10/29/2020 1204h
Analytical Results
Date Date Method Reporting Analytical
Compound Units Prepared Analyzed Used Limit Result Qual
Chloride mg/L J 1/6/2020 1155h E300.0 20.0 1,050
Nitrate/Nitrite (as N) mg/L J 0/31 /2020 J 802h E353.2 0.500 35.9 -----------
Report Date: 11/13/2020 Page 7 of 46
All analyses llpplicabk: to lht CWA. SDWA. Md RCRA are perfom1ed in accordMce to NELAC prolocols. P~t1111enl sa·1np1ing infonuauon is locnled on the aunched COC. anfitlt:nlinl Business Jnforrnation: This report is provided for 1he C'Xelu~i\c:-use of lhe
~ddressee. Pri\·ile~es ors:ub .. !t"q~ent ~~e or the ~~1e of this .co1~p:n1y or nny ~:mber or its slnJT, or reproducl\01°! ~(lhis r~~01~ in .con!u:cHon ... with the n~~·ertisement, P~?moti~ ~1 &rue of !ll!Y. ~rod~ct or P~?'ess, ~r in 7onn~c~ion w(lh th~ r~-publ1rnt!CM1 of Lhis report
3440 South 700 West
~alt Lake City, UT 841 19
Phone:[phone]
Toll Free: [phone]
Fax:[phone]
:-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
INORGANIC ANALYTICAL REPORT
Client: Energy Fuels Resources, Inc.
Project: 4th Quarter Chlorofonn 2020
Lab Sample ID: 2010937-001
Client Sample ID: TW4-25_10282020
Collection Date: 10/28/2020 1035h
Received Date: I 0/29/2020 1204h
Analytical Results
Date
Compound Units Prepared
Chloride mg/L
Nitrate/Nitrite (as N) mg/L ------
Date
Analyzed
11/6/2020 1138h
10/31/2020 1800h
Contact: Tanner Holliday
Method Reporting Analytical
Used Limit Result Qual
E300.0 5.00 61.3
E353.2 0.100 1.64
Report Date: 11/13/2020 Page 6 of 46
All anal) ses applicable lo the CWA. SDWA, Md RCRA are performed in accordance lo NELAC protocols Pertinenl sampling information is localed 011 lhe altnched C'OC Conficlen1inl Business lnformalion: This repor1 is provided ror the 1!'$du~hc me of the
~ddressee Pri,ile~es o,rsu~seq~enl ~~e of the ~~~ne of lhis.co1~pany or rm~ 1~mber of ils slaff, or reproductio~ ~fthis repo~ in ~on?eclion .. with the D~vertise~I. P~?molio.n ~r ~ale of ~!Y._~rodl)CI or P~?cess, ~r in 7°M:_c!ion w!lh lh~ r:_-puhl1cation bf this report
3440 South 700 West
,alt Lake City, UT 84119
Phone: [phone]
foll Free: [phone]
Fax: (80 I) 263-8687
!-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratmy Director
Jose Rocha
QA Officer
INORGANIC ANALYTICAL REPORT
Client:
Project:
Lab Sample ID:
Energy Fuels Resources, Inc.
4th Quarter Chloroform 2020
2010937-016
Client Sample ID: TW4-60_10282020
Collection Date: 10/28/2020 930h
Received Date: 10/29/2020 1204h
Analytical Results
Date
Compound Units Prepared
Chloride mg/L
Nitrate/Nitrite (as N) mg/L
Date
Analyzed
11/9/2020 2053h
I 0/31/2020 I 823h
Contact: Tanner Holliday
Method Reporting Analytical
Used Limit Result Qual
E300.0 1.00 < 1.00
E353.2 0.100 < 0.100 ---
Report Date: 11/13/2020 Page 21 of 46
All analyses applicable 10 lhe CWA. SDW A, and RCRA are fJerfom1ed in accordruice to NEL-AC protocols. Pe,1an,:n1 sampling l11fom\.illon is locoted on the auached COC. ConfldrT.Uiol Business Jnformalion: This repon is prm·ided for lhe .:xcll.lf.i, e use of1he
~ddressee. Pri,·ile~es o_f sub .. seq~enl ~,~e of the ~~1e of this .con:ipm1y or nny 1~mber or its slaff, or reproducfiO!! ~· 1hls repo~ in ~011!'1:!ction"' with the a~~·ertisement. P~?moli~ or ,:nlc of :U!Y. ~rod~cl or p1:?Cess, ~r in ~onn:_c.tion w!th th~ r:-p~bficr&ilnn of I his report
3440 South 700 West
Salt Lake City, UT 84 l 19
Phone: [phone]
Toll Free: [phone]
Fax: (80 l) 263-8687
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
INORGANIC ANALYTICAL REPORT
Client: Energy Fuels Resources, Inc.
Project: 4th Quarter Nitrate 2020
Lab Sample ID: 2011423-006
Client Sample ID: TWN-60 _ 11122020
Collection Date: 11 /12/2020 635h
Received Date: 11/17/2020 1045h
Analytical Results
Date
Compound Units Prepared
Chloride mg/L
Nitrate/Nitrite (as N) mg/L
Date
Analyzed
1112ono20 039h
11/19/2020 1528h
Contact: Tanner Holliday
Method Reporting Analytical
Used Limit Result Qual
E300.0 1.00 < 1.00
E353.2 0.100 < 0.100
Report Date: 12/1/2020 Page 9 of 19
All ;malyscs a1>rlicablc to 1hc CWA, SOWA. and RCRA arc pcrfonncd in :iccordancc lo NELAC protocols Pcnincnt ~mnpling inrormation is localed on 1hc auachcd COC Confidential Business lnfonnation: This rx:po11 is pro,idcd for 1hc cxclusi,..·<' usl· ol thc
riJdrcsscc Pri\'ilcgcs ol' subsequent 11sc of the name of'this company or any mcmhcr orics staff, or rcproductio11 or Lhis report in connection wilh 1hc advertisement, promo1icm or sale of any product or process. or in connection wi1h the re-publication of 1his 1cpi.l1 I ro, :my purpose nthct 1han for the orJdrcsscc will be 1;rnnlcd only on contocL. This company acccpL<; no rcspon$ibility except for the due perfonnancc of inspection nnd/or analysis in gooc.J faith and accorcling 10 the rule!. or Lhc trade and or science
3440 South 700 West
Salt Lake City, UT 84 I 19
Phone:[phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
INORGANIC ANALYTICAL REPORT
Client: Energy Fuels Resources, Inc.
Project: 4th Quarter Nitrate 2020
Lab Sample ID: 2011423-007
Client Sample ID: TWN-65_11122020
Collection Date: l l/12/2020 756h
Received Date: 11/17/2020 1045h
Analytical Results
Date
Compound Units Prepared
Chloride mg/L
Nitrate/Nitrite (as N) mg/L
Date
Analyzed
11/20/2020 202h
11/19/2020 153 I h
Contact: Tanner Holliday
Method Reporting Analytical
Used Limit Result Qual
E300.0 1.00 41.9
E353 2 0.100 0.171
Report Date: I 2/ I /2020 Page I O of I 9
All arrnly!'.c5 applieablc 10 Lhc CWA. SOWA, and RCRA arc pcrl'om1cd in accordance to NELAC p10tocols. Pcriincnl sampling inConnaLion is localed on 1hc allachcd COC ConCit.lcntia113usincss lruonn;.uion; Th,~ rcJ'IUll tSptU\ldcd (or tht-nduw...:-11sl'. ol 1hc
w;t,ln:s"(.-'\'. M,1,~l""'i, ol'~ul~ui;r,11.J"-t ot't1,l" r,:;uu .. • or1fl.i.ft Cl)lup.'ln)' Of l.n) u~11\hC1r ofir."' :i,.HUf. or ~1.,..,.lue1,on ord'li:s r\:('Ofl 1111:unm......-1io11 w1lh the ;,.d~·miJ.r."lllcrll, pN;111101icm o, :ikofany ('lh'ldu,1 or proc:oJ,., or in (dUll(\.liuu wt1h ,he ~-puNft,.•,11inn urthi:-1\.'[)l)ll
lut::iny lltJflti.~ 1"1h1i.·r1lmn rO( 1h~ Q.lkJte'-~'\:' will be gF.1.nh:J onl Oil CUttli\'C'l. rh ~npJu~· 11._:t''-'11h f\O l'\'~r,omil!illty 1,,•,.; ·,~ rnr 1l1c ,lue: petfhnnn~ o( W.pt."C\k,11 ltnJ/~rftl'1.1l)ih, ln soo,cl fllhh And Q('tonlinS 10 lhc rulo.1,r lhC' lflldc and urkwnn·
3440 South 700 West
Salt Lake City, UT 84119
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
e-mail: [e-mail]111
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Tanner Holliday
Energy Fuels Resources, Inc.
6425 South Hwy 191
Blanding UT 84511
TEL: [phone]
RE: 4th Quarter Nitrate 2020
Dear Tanner Holliday: Lab Set ID: 2011423
American West Analytical Laboratories received sample(s) on 11/17/2020 for the analyses
presented in the following report.
American West Analytical Laboratories (AWAL) is accredited by The National
Environmental Laboratory Accreditation Program (NELAP) in Utah and Texas; and is
state accredited in Colorado, Idaho, New Mexico, Wyoming, and Missouri.
All analyses were performed in accordance to the NELAP protocols unless noted
otherwise. Accreditation scope documents are available upon request. If you have any
questions or concerns regarding this report please feel free to call.
The abbreviation "Surr" found in organic reports indicates a surrogate compound that is
intentionally added by the laboratory to determine sample injection, extraction, and/or
purging efficiency. The "Reporting Limit" found on the report is equivalent to the
practical quantitation limit (PQL). This is the minimum concentration that can be
reported by the method referenced and the sample matrix. The reporting 1 imit must not be
confused with any regulatory limit. Analytical results are reported to three significant
figures for quality control and calculation purposes.
Thank You,
Approved by:
Patrick
Digitally signed by Patrick
Noteboom
ON: cn=Patrick Noteboom,
o=American West Analytical
Noteboom Laboratories.ou=UT00031,
email=pat@awa1·1abs.com, c=US
Date: 2020.12.02 18:24:54-07'00'
Laboratory Director or designee
Report Date: 12/1/2020 Page I of 19
r\ll anal):-cs applkahlc 10 lhc CWA. SOWA. and RCRA arc r.crforn1cd in accordance to NELAC protocols Pcr1inenL .vunpting information is located on the attached COC. Conl'idcntial Business Jnfonnation; TI1is rcpllrt is pruvid,:d for 1h,: cxclur-iw UH' ortllL'
nddr,:ss,:c. Pri,·ilcgcs or subsequcnl us,: or th,: name or lhis company or any mcmhcr or i1s stalT, or rcpm(luttlon or this report in con nee Lion wilh Lhc advertisement. promo1ion or sale of any producl or process, or in con nee Lion with 1hc rc-p11hlicu1io11 or \11is rqll11 L
for any µ111 pose lllhc1 than ror the atldn:sscc will bi.• grnnLcd only on contact, This company ai:ccpts no f~iiibility exec pl for the due pcrfonnancc of inspection and/or analysis in good faith nnd according to the rules uf Lhc 1rat.lc and nr i.cicm:c,
Inorganic Case Narrative
mt~rican West c1· •N•l VTIQAl l OBO~ATORIJ9 lent: Energy Fuels Resources, Inc.
Tanner Holliday
3440 South 700 West
Salt Lake City, UT 84119
Phone: (80 l) 263-8686
Toll Free: [phone]
Fax: (80 I) 263-8687
e-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Contact:
Project:
Lab Set ID:
Sample Receipt Information:
Date of Receipt:
Date of Collection:
Sample Condition:
C-0-C Discrepancies:
4th Quarter Nitrate 2020
2011423
11/17/2020
l 1/12-11/13/2020
Intact
None
Holding Time and Preservation Requirements: The analysis and preparation of all
samples were performed within the method holding times. All samples were properly
preserved.
Preparation and Analysis Requirements: The samples were analyzed following the
methods stated on the analytical reports.
Analytical QC Requirements: All instrument calibration and calibration check
requirements were met. All internal standard recoveries met method criterion.
Batch QC Requirements: MB, LCS, MS, MSD, RPO:
Method Blanks (MB): No target analytes were detected above reporting limits,
indicating that the procedure was free from contamination.
Laboratory Control Samples (LCS): All LCS recoveries were within control
limits, indicating that the preparation and analysis were in control.
Matrix Spike / Matrix Spike Duplicates (MS/MSD): All percent recoveries and
RPDs (Relative Percent Differences) were inside established limits, indicating no
apparent matrix interferences.
Duplicate (DUP): The parameters that required a duplicate analysis had RPDs
within the control limits.
Corrective Action: None required.
Report Date: 12/1/2020 Page 2 of 19
All :mill)1~.,rp!kJblc 10111~ ( WA~ SOWA. \\tkl Rl"l(A .:ll\l' rcr10t\nl'd in .iC'C·OtcLUu:c m 'a.At: prolCM."Olj.. J\:'r1i11cn1 i.:-uripling informaLion is located on Lhc .iuachcd CDC. Con£idcntial 13usincss LnfonnaLion: This rcpurl is providi.:d for Lhc cxclusiH· us~· ol 1!1c
addn-ir,."'C.,:. l.,l\'1k11-t·1, or ~uh~,~11cnl uw nl 1hc JlrfflC ofd1l, 11."dUljllUl)' ,w any n~m~r' orlb MJll: nr1cprndLN.'1'kl11 of thi, rqx,n in connection with lhc advcniscmenl. promotion or sale of any product or J>li'K.'eS$. or in connection with the rc-publicalion of thi.~ 1 cp111 I
for ,U1) 1111111~ otl,ct 1han (Of lhc ~So«' u ill be ;ran1L'd onl) on c,1111acL TI1U. 1.·ornf)411l' nca.iJt., no W.\ponSibili1y ~:..cqM '°' the due perfonnancc of inspeclhrn and/or analysis in good faith and ao.•<10Jit1S lll the rule!. nf lhc 1raJc n11d ors6cnt:l'.
SAMPLE SUMMARY
Client: Energy Fuels Resources, Inc. Contact: Tanner Holliday
~N.t.l vTICAl LAB0111Al0Alf9 Project: 4th Quarter Nitrate 2020
Lab Set ID: 2011423
Date Received: 11/17/2020 1045h
Lab Sample ID Client Sample ID Date Collected Matrix Analysis
3440 South 700 West
2011423-00IA TWN-18R_l l 122020 11/12/2020 655h Aqueous Nitrite/Nitrate (as N), E353.2
Salt Lake City, UT 84119 2011423-00lB TWN-18R_l l 122020 11 /12/2020 655h Aqueous Anions, E300.0
2011423-002A TWN-18 11122020 11/12/2020 756h Aqueous Nitrite/Nitrate (as N), E353.2
2011423-002B TWN-18 11122020 11/12/2020 756h Aqueous Anions, E300.0
Phone: [phone] 2011423-003A TWN-04 11122020 11/12/2020 840h Aqueous Nitrite/Nitrate (as N), E353 .2
Toll Free: [phone] 2011423-003B TWN-04 11122020 11/12/2020 840h Aqueous Anions, E300.0
Fax: (80 I) 263-8687 2011423-004A TWN-0 I 11122020 11/12/2020 912h Aqueous Nitrite/Nitrate (as N), E353.2
2011423-004B TWN-01 11122020 11/12/2020 912h Aqueous Anions, E300.0
e-mail: awaJrc~awal-labs.com 2011423-00SA TWN-02_11122020 11/12/2020 955h Aqueous Nitrite/Nitrate (as N), E353.2
2011423-00SB TWN-02_11122020 11/12/2020 955h Aqueous Anions, E300.0 web: www.awal-labs.com 2011423-006A TWN-60_11122020 11/12/2020 635h Aqueous Nitrite/Nitrate (as N), E353.2
2011423-006B TWN-60 11122020 11/12/2020 635h Aqueous Anions, E300.0
2011423-007A TWN-65 _11122020 11/12/2020 756h Aqueous Nitrite/Nitrate (as N), E353.2
Kyle F. Gross 2011423-007B TWN-65_11122020 11/12/2020 756h Aqueous Anions, E300.0
Laboratory Director 2011423-008A TWN-07 _ 11132020 11 /13/2020 840h Aqueous Nitrite/Nitrate (as N), E353 .2
201 l 423-008B TWN-07 11132020 11/13/2020 840h Aqueous Anions, E300.0
Jose Rocha 2011423-009A TWN-03 11132020 11 /13/2020 852h Aqueous Nitrite/Nitrate (as N), E353.2
QA Officer 2011423-009B TWN-03 11132020 11/13/2020 852h Aqueous Anions, E300.0
2011423-0lOA PIEZ-01_11132020 11/13/2020 913h Aqueous Nitrite/Nitrate (as N), E353.2
2011423-0lOB PIEZ-01 11132020 11/13/2020 913h Aqueous Anions, E300.0
2011423-01 lA PIEZ-02 11132020 11/13/2020 903h Aqueous Nitrite/Nitrate (as N), E353.2
2011423-01 lB PIEZ-02 11132020 11 /13/2020 903h Aqueous Anions, E300.0
2011423-012A PIEZ-03A_l 1132020 11/13/2020 928h Aqueous Nitrite/Nitrate (as N), E353.2
2011423-012B PIEZ-03A 11132020 11/13/2020 928h Aqueous Anions, E300.0
Report Date: 12/1/2020 Page 3 of 19
All :in.lt),cS aprlicnbk 10 lhc C\\',;\, SOW,.\,. :md kf'R:\ .1u:1:1 ~flbo,,cd in. ii«on..Lutec to ~(!LAC prOKltl)\t,. r•cr1inc111 :rcunphn.11. infommLion i~ localed on Lhc anachcd COC. Cc,n(idcntial 13usincss Jnfc,rmalion: This rcpml is pro\ickJ for the exclusi\L" use nl 1hc
nd1lta,."K.'<'. Pri~·ilcgcs or ~11bscqnt:nl u~ of lht" n;11n.: of 1hrs ,omp11n)' wm1y 11Mj'111bl:1 o(il."'" ~ll.lT, orn;produ.:lioin of 1hls rcrwui [11 connection wilh 1hc advcrtiscmcnl. promolion or sale or nny product or process. or in co11ni.:c1ion with 1hc re-publication of \hi!. 1l'pni 1
for ~11) rnrrl1sc n1hcr 1han for 11~· JdttS\O: "ill bl: ;r.mtl,J only1,n C'ilNIM'l, Th Ii compmyllC'ccpl« tJfl n:~\ibility ,•:..cq,.i ror •he due perfonmmcc of inspection and/or analysis in goOO raith and according lo the rules of the lradc ,ind ofscicni.:l'.
American West
AM&i.VlrCAl LAllD"ATO .. IEQ
Client: Energy Fuels Resources, Inc.
Lab Set ID: 2011423
Project: 4th Quarter Nitrate 2020
Analyte Result
Lab Sample ID: LCS-R145851 Date Analyzed:
Test Code: 300.0-W
Chloride 4.78
Lab Sample ID: LCS-R145841 Date Analyzed:
Test Code: N02/N03-W-353.2
Nitrate/Nitrite (as N) 0.920
Units
3440 South 700 West
Salt Lake City, UT 84119
Phone: [phone]. Toll Free: [phone], Fax: [phone]
e-mail: [e-mail]. web: www.awal-labs.com
C SUMMARY REPORT
Contact:
Dept:
Tanner Holliday
WC
Method MDL
Reporting
Limit
QC Type: LCS
Amount Spiked Spike Ref.
Amount %REC
11/19/2020 1937h
mg/L E3000 0.0565 0.1 00 5.000 0 95.7
I 1/19/2020 1518h
mg/L £353.2 0.00494 0.0100 1.000 0 92.0
Limits
90-I JO
90-110
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
RPDRef. RPD
Limit Amt %RPO Qual
Report Date: 12/1/2020 Page 16ofl9
All analyst-'5 applicabl!.! to th~ CWA. SD\VA, and RCRA a1e perfonrn;:d in accordam.:e Lo NH.AC' protoi:ols Penlncm sampling information is lllC.:a(~d on the arra1:hcd COC. Confidential I3u:,;ines:-. Information: This report is prm idecJ forthe c:i-:clusi\e use of thr .iddresst.·e Privilt:ges t1f subsequent use of the
namt: llf this company 01 any 111t'tnbt:I" c..r;: its staff. or rt:pmdui.:tion of rhi::; report in c.:onnection with Ihe a\h t!'nis~ment. promotion (lr sa!i.: nl' any proUuL:t rn prnct::-.s. or in connection with tht: re-public<1tion of thh. report for any pwposi: oLhtT th:rn for rhe addn::,:-.i:e will be grant~d only l\n contact, This
comp:my acc~p1s no responsibiliry c:xcept for (he due pedonnance of in-:;peuion and/or am1lysii in good fail'h and ttl·cor<ling IO tht! tU!ir::-of the tl':lde and of sdi:ni.:c
Client: Energy Fuels Resources, Inc.
Lab Set ID: 2011423
Project: 4th Quarter Nitrate 2020
Analyte Result
Lab Sample ID: MB-Rl45851 Date Analyzed:
Test Code: 300.0-W
Chloride <0.100
Lab Sample ID: MB-Rl45841 Date Analyzed:
Test Code: N02/N03-W-353.2
Nitrate/Nitrite (as N) < 0 0100
3440 South 700 West
Salt Lake City, UT 84119
Phone: [phone]. Toll Free: [phone], Fax: [phone]
e-mail: [e-mail]. web: www.awal-labs.com
C SUMMARY REPORT
Contact:
Dept:
QC Type:
Reporting Amount Spiked
Units Method MDL Limit
1 1/19/2020 1920h
mg/L E300.0 0 0565 0.100
11 /19/2020 1517h
mg/L E353.2 0.00494 0.0100
Tanner Holliday
WC
MBLK
Spike Ref.
Amount %REC Limits
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
RPO Ref. RPO
Amt %RPO Limit Qual
Report Date: 12/1/2020 Page 17 of 19
All analy:ies applicable to che CWA. SOWA. an<l RCRA are perfonned in acl.:'.ordan<:~ w NELAC prn1ocols. Pertinent sampling information is locateJ on the att-dch..:d COC. Confidenti.il l3usiness Information: This reporr is pro"i<le<l for the exclusive use o( the adJressec. Privikge.s of subsequent use of the
name or this company or any member of its staff. or reproduction of chis report in connection with thi: ad\t:rlist'rnt'nl. pronwtion or sale i.lf any product , . .ir procl!ss. or in connection wirh the n.'.-publit:ation nf this report Cor any purpose ~)thl!r than for tht! ,1Jdn:ssl!!! wil\ b(.! grantct.l unly on cnntat..:t. This
company accepts 110 responsibility except t'orrhe dut pt!rforrnanci.: of inspection ,md/or.analysis in good faith and ac(.;ording to the rules 0fthe 1radi.' and of:;cii.;ni.:e
Client: Energy Fuels Resources, Inc.
Lab Set ID: 2011423
Project: 4th Quarter Nitrate 2020
Analyte Result -Lab Sample ID: 2011423-006BMS Date Analyzed:
Test Code: 300.0-W
Chloride 9.51
Lab Sample ID: 2011423-006AMS Date Analyzed:
Test Code: N02/N03-W-353.2
Nitrate/Nitrite (as N) 0 955
Units
3440 South 700 West
Salt Lake City, UT 84119
Phone: [phone]. Toll Free: [phone], Fax: [phone]
e-mail: [e-mail]. web: w,>vw.awal-labs.com
C SUMMARY REPORT
Contact:
Dept:
Tanner Holliday
WC
Method MDL
Reporting
Limit
QC Type: MS
Amount Spiked Spike Ref.
Amount %REC
11/20/2020 055h
mg/L E300.0 0 113 0200 10.00 0 95.1
11/19/2 020 1529h
mg/L E353.2 0,00494 0,0100 1.000 0 95 5
Limits
90 -110
90-I 10
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
RPO Ref. RPO
Limit Amt %RPO Qual
Report Date: 12/1/2020 Page 18 of 19
All analyses applicable to rhc:-CWA. SD\VA, and RCRA an: pcrfonned in accord:.1m:t! l(l NE LAC protocols. Pi::rtin!!nr sampling informaLi~u1 is loc:Ht:d on th~ ,m:.u.:hed COC. Confidential Bu~i11c:ss lnformation: This rcpon is pro" ided for the cxc\usi\'e use of the adJressi:t:. Privilt:gt:s of sub~~ui:m use of the
nam~ llf this company or any m1:mbcr or its staff. l)r rt'production of this n:pon in i..:onn~ction with \he ad\erList'mt'nl. promotion or salt: ol' :my product rn' proce:)s. 01· in Cllnnection with the 1e~publicatii.m of thi:-. repo1 l ror any purpm:.'t!' other than for the: addre~si:i: will bi.: g1anted onl:' on contact. This
compan:' accepts no rl!sponsibiliLy exc~p1 fo1 the due pt'rformanct' of inspection aml/rn analysis in good faith and according: m 1h~ rules of the 11ade and of sei..:nce.
Client: Energy Fuels Resources, Inc.
Lab Set ID: 2011423
Project: 4th Quarter Nitrate 2020
Analyte Result
Lab Sample ID: 2011423-006BMSD Date Analyzed:
Test Code: 300.0-W
Chloride 9.74
Lab Sample ID: 2011423-006AMSD Date Analyzed:
Test Code: N02/N03-W-353.2
Nitrate/Nitrite (as N) 0.969
Units
3440 South 700 West
Salt Lake City, UT 84119
Phone: (80 I) 263-8686. Toll Free: [phone], Fax: (80 I) 263-8687
e-mail: [e-mail]. web: www.awal-labs.com
C SUMMARY REPORT
Contact:
Dept:
Tanner Holliday
WC
Method MDL
Reporting
Limit
QC Type: MSD
Amount Spiked Spike Ref.
Amount %REC
l 1/20/2020 l 12h
mg/L E300.0 0.113 0.200 10.00 0 974
11/19/2020 1530h
mg/L E353,2 0.00494 0 0100 1.000 0 96.9
Limits
90 -110
90-110
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
RPD Ref. RPD
Limit Amt %RPO
9.51 2.48 20
0.955 1.45 10
Qual
Report Date: 12/1/2020 Page 19 of 19
Alt analyses applicable to the CW A. SD\VA. and RCRA an! perfonncd in accordance m NE LAC protm:ols. Penincnr sampling information is locmc::c.l on the anache<l COC. Confidential I3usi111::.s Information: This rep{)n is p10viUt.~ for the e:1,;clusi, ~ USt.' of the .iddressee. Privileges of subsequent use: 1.1f rht
name of this company or any member of its staff. nr reprodui..:tion (lJ'1hi::. rep<.m in !.:Onn,;:r.:lion with the c.1dvc:nis~mi.:nl, promotion ur sale of any product or proces:.. or in connection" ith the n:-publ\l.:aLion of this n:p01 l l"t1r any putlHlSe other than for the addressee will be grante-U only on contact. This
company accepts no resron~ibility except for the due pe1 formanci.:-of inspecti\H1 and/01 analysi:. in good faith and acr.:lwcling to 1h~ rub_, of the rwdi: and of sc:ience.
American West Analytical Laboratories Rpt Emailed: UL
Denison
WORK ORDER Summary WorkOrder: 2011423 Page 1 of2
Client: Energy Fuels Resources, Inc. Due Date: 12/3/2020
Client ID: ENE300 Contact: Tanner Holliday
Project: 4th Quarter Nitrate 2020. QC Level: III WO Type: Project
Comments: QC 3 (no chromatograms). EDD-Denison. CC [e-mail]; Do not use "*R_" samples as MS/MSD.;
Sample ID Client Sample ID Collected Date Received Date Test Code Matrix Sel Storage
2011423-00lA TWN-18R_l1122020 11/12/2020 0655h 11/17/2020 1045h N02/N03-W-353.2 Aqueous DF-N02/N03
I SEL Ana{ytes: N03N02N
2011423-00lB 300.0-W DF-cl
1 SEL Analytes: CL
2011423-002A TWN-18_11122020 11/12/2020 0756h 11/l 7 /2020 l 045h N02/N03-W-353.2 Aqueous DF-N02/N03
I SEL Analytes: N03N02N
201 l 423-002B 300.0-W DF-cl
1 SEL Ana{ytes: CL
2011423-00JA TWN-04_11122020 11/12/2020 0840h 11/17/20201045h N02/N03-W-353.2 Aqueous DF-N02/N03
1 SEL Analytes: N03N02N
2011423-00JB 300.0-W DF-cl
1 SEL Analytes: CL
2011423-004A TWN-01_11122020 11/12/2020 0912h 11/17/2020 1045h N02/NOJ-W-353.2 Aqueous DF-N02/N03
I SEL Analytes: N03N02N
2011423-004B 300.0-W DF-cl
1 SEL Analytes: CL
2011423-00SA TWN-02_11122020 11/12/2020 0955h ll/l 7 /2020 1045h N02/NOJ-W-353.2 Aqueous DF-N02/N03
I SEL Analytes: N03N02N
2011423-00SB 300.0-W DF-cl
I SEL Analytes: CL
2011423-006A TWN-60 _ 11122020 11/12/2020 0635h Il/17/2020 1045h N02/N03-W-353.2 Aqueous DF-N02/N03
I SEL Analytes: N03N02N
2011423-006B 300.0-W DF-cl
I SEL Analytes: CL
2011423-007 A TWN-65_11122020 11/12/2020 0756h 11/17/2020 1045h N02/N03-W-353.2 Aqueous DF-N02/N03
I SELAnalytes: N03N02N
2011423-007B 300.0-W DF-cl
1 SEL Analytes: CL
Printed: ll/J 7/20 11:I J LABORATORY CHECK: %M 0 RT 0 CNO TAT 0 oco LUOO HOK __ HOK __ HOK __ COC Emailed
WORK ORDER Summary WorkOrder: 2011423 Page2 of2
Client: Energy Fuels Resources, Inc. Due Date: 12/3/2020
Sample ID Client Sample ID Collected Date Received Date Test Code Matrix Sel Storage
2011423-008A T\¥1'11-07_11132020 11/13/2020 0840h 11/17/2020 1045h N02/N03-W-353.2 Aqueous DF-N02/N03
1 SELAnalytes: N03N02N
2011423-00SB 300.0-W DF-cl
1 SEL Analytes: CL
2011423-009A T\¥1'11-03_11132020 11/13/2020 0852h ll/17 /2020 1045h N02/N03-W-353.2 Aqueous DF-N02/N03
1 SEL Analytes: N03N02N
2011423-0098 300.0-W DF-cl
1 SEL Analytes: CL
2011423-0lOA PIEZ-01_11132020 11/13/2020 0913h 11/17/20201045h N02/N03-W-353.2 Aqueous DF-N02/N03
I SELAnalytes: N03N02N
2011423-0IOB 300.0-W DF-cl
I SEL Analytes: CL
2011423-0IIA PIEZ-02_11132020 11/13/2020 0903h 11/17/2020 1045h N02/N03-W-353.2 Aqueous DF-N02/N03
1 SEL Analytes: N03N02N
2011423-01 lB 300.0-W DF-cl
1 SEL Analytes: CL
2011423-012A PIEZ-03A_ll132020 11/13/2020 0928h ll/17/2020 1045h N02/N03-W-353.2 Aqueous DF-N02/N03
1 SEL Analytes: N03N02N
2011423-012B 300.0-W DF-cl
1 SEL Anal)i_tes: CL
Printed: 11/17/20 11:11 LABORATORY CHECK: %M D RT O CN O TAT O QC O LUO 0 HOK ___ HOK __ _ HOK___ COC Emailed ____ _
3
4
American West
Analytical Laboratories
463 W. 3600 S. Salt Lake City, UT 84115
Phone # [phone] Toll Free# [phone]
I
--
Address: 6425 S. Hwy. 191
Blanding, UT 84511
Coniact Tanner Holliday
Phone#: [phone] Cell#:
Email: tbo),Uda.y@.ion.ugyt'tlel.a.c.om; [e-mail]
Project Name: 4th Quarter Nitrate 2020
Project#:
PO#:
Sampler Name: Tanner Holliday
Samole ID: Date Samoled
TWN-18R_ll122020 11/12/2020
TWN-18_11122020 11/12/2020
TWN-04_11122020 11/12/2020
TWN-01_11122020 11/12/2020
TWN-02_11122020 11/12/2020
TWN-60_11122020 11/12/2020
TWN-65_11122020 11/12/2020
$ . TWN-07_11132020 11/13/2020
TWN-03_11132020 11/13/2020
10, > PIEZ-01_11132020 11/13/2020
I PIEZ-02_11132020 11/13/2020
i PIEZ-03A_lll32020 12 11/13/2020
13 I
~ollr,qul-by; _, Ji-/~~-,!;.~ Date: ........ u... \,. ,. .... ,.., 11/16/2020 v-Time:
Print Name: Tanner Hollldav 1100
Relinquished by: Date:
ls;,,,otum
T,ma:
Print Name:
Relinquished by: Oate:
Slgoeture
Time:
IPrtrn Name:
Rellnqulshed by: Date:
Sianat1 re
l1me:
Prtrc.Nnmo;.
CHAIN OF CUSTODY
All analysJs will be oonductad using NELAP accredlted methods and all data wlll be reported using AWAL's standard analyt:e lists and reportlrg
limjts f PQL) IXlless speciflcally req.,ested otherwlse on this Chain of CUstody ardlor attached docunenteUon
I QC Level: I Tum Around Time: Unless other arrangements have been made,
signed reports will be ema~ed by 5:00 pm on
3 Standard the day they i'll'9 dua,
X Include EDD:
LOCUS UPLOAD
EXCEL
Field Filtered For:
For Compliance With:
D NELAP
D RCRA
D CWA
D SDWA
D ELAP/A2LA
D NLLAP
<'i' & D Non-Compliance c:; ~ Q D O!her. "' f S2. I,.. CD .!S 0 C !a "' ~ .. 0 Q ::;; c:, Known Hazards l!I IJ) 0 CD ..... ~ Time () C. s & 'o E c3 Samoled .. Samole Comments .. "' l!I
655 2 w X X
756 2 w X X
840 2 w X X
912 2 w X X
955 2 w X X
635 2 w X X
756 2 w X X
840 2 w X X
852 2 w X X
913 2 w X X
903 2 w X X
928 2 w X X
2 w X X
Received by: Dale: Special Instructions: SlnnehJre
Time:
PrtrnNamo: :=-::~ _i l1(J --;:fl_ 7 Cla!o: // J;7/z.._..1 \
?rlrnN•11>0: c_(/A-, L LL\ l. =/ Time:
l"t\ t./S
Recelved by: I ? Oate:
Slonature
IT/me:
Pcin1 Nar,lff:.
Received by: Date:
Slanature
tnme:
Print Name:
Page of I Dua Date: I
Laboratory Use Only
Saff'4)1 .. Wa,o: U, f 5
·c9-4Ql'110<0d 2 Amblonl.Q
3 Temperatura ~-c
4 Received Bn:>ken/Laaking
(Improperly Sealed)
y e)
5 ~yPr-ed y N
Cliool<od • -y N
6 Received Wilhln
Holding Times
0 N
COC Tape Was:
1 tJ•rn on Outer Package
Y N NA
2 ~broken on Outer Package
N NA
3 PrasentonSamplo ~ y N
4 Unbroken on Sample e y N
Disa-epancies Between Sample
Labels and coc Record?
y C)
Analysis
Ammonia
COD
Cyanide
Metals
N02/N03
O&G
Phenols
Sulfide
TKN
TP04
Cr VI+
Procedure:
Frequency:
Preservation Check Sheet
s le Set E ,xtension and 1> H
Preservative I 2. 3 {J s (n ? s--
pH <2li2S04
oH<2H~0 4
oH >lONaOH
oH<2HN03
oH <2H2S04 V,,¢. ~)' y,..< ll-( \(e_,: V,,c ~_( V..c
oH <2HCL ' ,, f
pH <2 H2S04
pH >9 NaOH, ZnAC
pH<2 I·hS04
oH <2 H2S04
nH >9 CNH4 )2S04
Pour a small amount of sample in the sample lid
Pour sample from lid gently over wide range pH paper
Do Not dip the pH paper in the sample bottle or lid
r :r
C; / (l
v .. ,.... ~r
p
1)
2)
3)
4)
5)
6)
7)
If sample is not preserved, properly list its extension and receiving pH in the appropriate column above
Flag COC, notify client if requested
Place client conversation on COC
Samples may be adjusted
All samples requiring preservation
*
+ ..
#
•
The sample required additional preservative upon receipt.
The sample was received unpreserved.
The sample was received unpreserved and therefore preserved upon receipt.
The sample pH was unadjustable to a pH < 2 due to the sample matrix.
The sample pH was unadjustable to a pH > __ due to the sample matrix interference .
Lab Set ID: 2G I I l/ :Z.?,
pH Lot#: UL SO (p
fl /Z.
il ( \/r5
rev 10-28-2020
ANALVTICAL l ABORATORIES
3440 South 700 West
~alt Lake City, UT 84119
Phone:[phone]
Toll Free: [phone]
Fax: [phone]
!-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laborat01y Director
Jose Rocha
QA Officer
Tanner Holliday
Energy Fuels Resources, Inc.
6425 South Hwy 191
Blanding, UT 84511
TEL: [phone]
RE: 4th Quarter Chloroform 2020
Dear Tanner Holliday: Lab Set ID: 2010937
American West Analytical Laboratories received sample(s) on 10/29/2020 for the analyses
presented in the following report.
American West Analytical Laboratories (AWAL) is accredited by The National
Environmental Laboratory Accreditation Program (NELAP) in Utah and Texas; and is
state accredited in Colorado, Idaho, New Mexico, Wyoming, and Missouri.
All analyses were performed in accordance to the NELAP protocols unless noted
otherwise. Accreditation scope documents are available upon request. If you have any
questions or concerns regarding this report please feel free to call.
The abbreviation "Surr" found in organic reports indicates a surrogate compound that is
intentionally added by the laboratory to determine sample injection, extraction, and/or
purging efficiency. The "Reporting Limit" found on the report is equivalent to the
practical quantitation limit (PQL). This is the minimum concentration that can be
reported by the method referenced and the sample matrix. The reporting limit must not be
confused with any regulatory limit. Analytical results are reported to three significant
figures for quality control and calculation purposes.
Thank You,
Approved by:
K I F Digitally signed y e . by Kyle F. Gross
Date:
Gross 2020.11.16
06:48:50 -07'00'
Laboratory Director or designee
Report Date: 11/13/2020 Page I of 46
All analyses applicable lo 1he CWA. SOWA, and RCRA are perfom1ed in accordMce to NELAC protocols Pertinenl sampling information is localed on Lhe attached COC Conficlenllal Busin~ss Information: This repor1 is provided for the exclusive use o[the
~ddressee Pri, ile~es o_f sub~seq~enl ~~e or the ~~1e or this .coi~pany or anr ·~~be, or its staff, or reproductio~ ~f this repo~ in ~o~ection .. wilh the a~\'ertisemenl, P~?rnotio.n ~r sale of ?1!) ~rod~cl or P•.?cess, ~r in :onm:;c~ion w~th lh? r:-publication of this repon
SAMPLE SUMMARY
Client: Energy Fuels Resources, Inc. Contact: Tanner Holliday
ANALYTICAi LABORATORIES Project: 4th Quarter Chloroform 2020
Lab Set ID: 2010937
Date Received: 10/29/2020 1204h
Lab Sample ID Client Sample ID Date Collected Matrix Analysis
3440 South 700 West
2010937-00IA TW4-25 10282020 10/28/2020 l 035h Aqueous Anions, E300.0
,alt Lake City, UT 84119 2010937-00lB TW4-25 I 0282020 l 0/28/2020 1035h Aqueous Nitrite/Nitrate (as N), E353.2
2010937-00IC TW4-25 10282020 l 0/28/2020 l 035h Aqueous VOA by GC/MS Method
8260D/5030C
Phone:[phone]l0937-002A TW4-24 10282020 I 0/28/2020 1045h Aqueous Anions, E300.0
20l0937-002B TW4-24 10282020 10/28/2020 1045h Aqueous Nitrite/Nitrate (as N), E353.2
Toll Free: [phone] 201093 7-002C TW4-24 10282020 10/28/2020 1045h Aqueous VOA by GC/MS Method
Fax:[phone]D/5030C
!-mail: [e-mail] 20l0937-003A TW4-40 10282020 I 0/28/2020 1322h Aqueous Anions, E300.0
2010937-0038 TW4-40 10282020 10/28/2020 1322h Aqueous Nitrite/Nitrate (as N), E353.2
web: www.awal-labs.com 20l0937-003C TW4-40 10282020 10/28/2020 1322h Aqueous VOA by GC/MS Method
8260D/5030C
20l0937-004A TW4-21 10282020 10/28/2020 1025h Aqueous Anions, E300.0
Kyle F. Gross 2010937-004B TW4-21 10282020 10/28/2020 1025h Aqueous Nitrite/Nitrate (as N), E353.2
2010937-004C TW4-21 10282020 10/28/2020 1025h Aqueous VOA by GC/MS Method
Laboratmy Director 8260D/5030C
2010937-00SA TW4-0l 10282020 10/28/2020 1255h Aqueous Anions, E300.0
Jose Rocha 2010937-00SB TW4-0l 10282020 10/28/2020 1255h Aqueous Nitrite/Nitrate (as N), E353.2
QA Officer 2010937-00SC TW4-0l 10282020 10/28/2020 1255h Aqueous VOA by GC/MS Method
8260D/5030C
2010937-006A TW4-04_10282020 10/28/2020 1312h Aqueous Anions, E300.0
2010937-006B TW4-04 10282020 10/28/2020 1312h Aqueous Nitrite/Nitrate (as N), E353.2
20 I 093 7-006C TW4-04_l0282020 10/28/2020 1312h Aqueous VOA by GC/MS Method
8260D/5030C
20l0937-007A TW4-41 10282020 I 0/28/2020 1305h Aqueous Anions, E300.0
2010937-0078 TW4-41 10282020 10/28/2020 1305h Aqueous Nitrite/Nitrate (as N), E353.2
2010937-007C TW4-41 10282020 10/28/2020 1305h Aqueous VOA by GC/MS Method
8260D/5030C
20 I 093 7-008A MW-26 10282020 10/28/2020 1223h Aqueous Anions, E300.0
20l0937-008B MW-26 10282020 10/28/2020 1223h Aqueous Nitrite/Nitrate (as N), E353.2
2010937-008C MW-26 10282020 10/28/2020 1223h Aqueous VOA by GC/MS Method
8260D/5030C
2010937-009A MW-04 _ l 0282020 10/28/2020 1227h Aqueous Anions, E300.0
2010937-009B MW-04_10282020 10/28/2020 1227h Aqueous Nitrite/Nitrate (as N), E353.2
2010937-009C MW-04 10282020 10/28/2020 1227h Aqueous VOA by GC/MS Method
8260D/5030C
2010937-0lOA TW4-02 10282020 10/28/2020 1240h Aqueous Anions, E300.0
Report Date: 11/13/2020 Page 2 of 46
All anal~ses applicable to the CWA. SDWA. and RCRA are perJ'onned in accordance to NELAC prolocols Pertinenl sampling information is located 011 Lhe attached COC Confidential Business lnformalion: This report is pro, ided for lhe exclusirn use of1he
~ddressee Pri,·ile~es orsub~seq~1en1 ~1~e of 1he ~~e of this .co1~ptmy or an) ·~'!1be, of its slnff, or reµroductio~ ~fthis repo~ in .con~1ection~ wilh the n~\ertise1~n1, P~?molio.n ~r ~ale of~!~~ ~rod~ct or p•:?Cess, ~r in ~nn~c!ion '''!lh th~ r:_-p~blication of this report
Client: Energy Fuels Resources, Inc. Contact: Tanner Holliday
Project: 4th Quarter Chloroform 2020
Lab Set ID: 2010937
Date Received: 10/29/2020 1204h
Lab Sample ID Client Sample ID Date Collected Matrix Analysis
2010937-0lOB TW4-02 10282020 10/28/2020 1240h Aqueous Nitrite/Nitrate (as N), E353.2
3440 South 700 West 2010937-0lOC TW4-02 10282020 10/28/2020 1240h Aqueous VOA by GC/MS Method
8260D/5030C
;;alt Lake City, UT 84119 2010937-01 lA TW4-19 10282020 10/28/2020 950h Aqueous Anions, E300.0
2010937-0118 TW4-19 10282020 10/28/2020 950h Aqueous Nitrite/Nitrate (as N), E353.2
2010937-01 lC TW4-19_10282020 10/28/2020 950h Aqueous VOA by GC/MS Method
Phone:[phone]D/5030C
2010937-012A TW4-l 1_10282020 10/28/2020 1231h Aqueous Anions, E300.0
Toll Free: [phone] 2010937-012B TW4-ll 10282020 10/28/2020 1231h Aqueous Nitrite/Nitrate (as N), E353.2
Fax: [phone] 2010937-012C TW4-ll 10282020 10/28/2020 1231 h Aqueous VOA by GC/MS Method
:-mail: [e-mail] 8260D/5030C
2010937-013A TW4-22 10282020 10/28/2020 1055h Aqueous Anions, E300.0
web: www.awal-labs.com 2010937-013B TW4-22 10282020 10/28/2020 1055h Aqueous Nitrite/Nitrate (as N), E353.2
2010937-013C TW4-22 10282020 10/28/2020 1055h Aqueous VOA by GC/MS Method
8260D/5030C
2010937-014A TW4-39_10282020 10/28/2020 1215h Aqueous Anions, E300.0 Kyle F. Gross 2010937-014B TW4-39 10282020 10/28/2020 1215h Aqueous Nitrite/Nitrate (as N), E353.2
Laboratory Director 201093 7-0 l 4C TW4-39 10282020 10/28/2020 1215h Aqueous VOA by GC/MS Method
8260D/5030C
Jose Rocha 2010937-0lSA TW4-37 10282020 10/28/2020 1103h Aqueous Anions, E300.0
QA Officer 2010937-015B TW4-37 10282020 10/28/2020 1103h Aqueous Nitrite/Nitrate (as N), E353.2
2010937-0lSC TW4-37 10282020 10/28/2020 1103h Aqueous VOA by GC/MS Method
8260D/5030C
2010937-016A TW4-60_10282020 10/28/2020 930h Aqueous Anions, E300.0
201093 7-0 l 6B TW4-60 10282020 10/28/2020 930h Aqueous Nitrite/Nitrate (as N), E353.2
2010937-016C TW4-60 10282020 10/28/2020 930h Aqueous VOA by GC/MS Method
8260D/5030C
2010937-017A Trip Blank 10/28/2020 930h Aqueous VOA by GC/MS Method
8260D/5030C
Report Date: l l/13/2020 Page 3 of 46
All analyses applicable to lhe CWA. SOW A, and RCRA are performed in accordance lo NE LAC protocols Pertinenl sampling information is localed on Lhe attached COC Confidential Business Information: This report is proYided rat 1he: c..,dn~ht \De of the
~ddressee P1i,ile~es o!sub~seq~ent ~~e of lhe ~?';'e or this .co~pany or an~ 1~mber of its stalT, or reproductio.~ ~r lhis repo~ in ~0~1eclion .. \\ilh lhe a~vertise~nL, P:?motio_n ~r ~aJe of~!~: ~rodl~CI or P~?cess, ~r in ';°nnt;c.Lion w~lh 1h~ '':°JlUbhcltllbn ur t11is report
3440 South 700 West
;aJt Lake City, UT 84119
Phone: [phone]
Toll Free: [phone]
Fax: [phone]
!-mail: [e-mail]
web: www.awal-labs.com
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
Inorganic Case Narrative
Client:
Contact:
Energy Fuels Resources, Inc.
Tanner Holliday
Project:
Lab Set ID:
Sample Receipt Information:
Date of Receipt:
Date of Collection:
Sample Condition:
C-0-C Discrepancies:
4th Quarter Chloroform 2020
2010937
10/29/2020
10/28/2020
Intact
None
Holding Time and Preservation Requirements: The analysis and preparation of all
samples were performed within the method holding times. All samples were properly
preserved.
Preparation and Analysis Requirements: The samples were analyzed following the
methods stated on the analytical reports.
Analytical QC Requirements: All instrument calibration and calibration check
requirements were met. All internal standard recoveries met method criterion.
Batch QC Requirements: MB, LCS, MS, MSD, RPD:
Method Blanks (MB): No target analytes were detected above reporting limits,
indicating that the procedure was free from contamination.
Laboratory Control Samples (LCS): All LCS recoveries were within control
limits, indicating that the preparation and analysis were in control.
Matrix Spike / Matrix Spike Duplicates (MS/MSD): All percent recoveries and
RPDs (Relative Percent Differences) were inside established limits, indicating no
apparent matrix interferences.
Duplicate (DUP): The parameters that required a duplicate analysis had RPDs
within the control limits.
Corrective Action: None required.
Report Date: 11/13/2020 Page 4 of 46
All annl~ ses applicable lo lhe CWA. SOW°' and RCRA are perfom1ed in accordance lo NELAC protocols Per1inent sampling infonnaLion is located on lhe attached COC Confidential Business lnform:uion: This repon is prm•ided for the exclusi, e use of the
~ddressee Pri, ile~es of sub~seq~enl ~1~e or the ~~e of I his .coi~pany or any l~~ber of ils slnfT, or reproduclio~ ~f this repo~ in ~011!1-ection ... "~th the n~ver1isemenl1 p~omoli~n or saJe of~~~ ~rodl~Cl or P~?cess, ~r in ~onn;,c,tion w!lh 1h~ r;_-publication of this report
American West ANALYTICAL LABORATORIES
Client: Energy Fuels Resources, Inc.
Lab Set ID: 2010937
Project: 4th Quarter Chloroform 2020
Analyte Result
Lab Sample ID: LCS-Rl45393 Date Analyzed:
Test Code: 300.0-W
Chloride 4.92
Lab Sample ID: LCS-Rl45453 Date Analyzed:
Test Code: 300.0-W
Chloride 4.89
Lab Sample ID: LCS-Rl45049 Date Analyzed:
Test Code: N02/N03-W-353.2
Nitrate/Nitrite (as N) 1.05
3440 South 700 West
Salt Lake City, UT 84119
Phone: [phone], Toll Free: [phone], Fax: [phone]
e-mail: [e-mail], web: www.awal-labs.com
QC SUMMARY REPORT
Contact:
Dept:
Tanner Holliday
WC
Units Method
11/06/2020 541 h
mg/L E300.0
11/09/2020 165 8h
mg/L E300 0
I 0/31/2020 1759h
mg/L E353.2
MDL
0.0565
0.0565
0.00494
Reporting
Limit
0.100
0.100
0.0100
QC Type: LCS
Amount Spiked Spike Ref.
Amount %REC
5.000 0 98.4
5.000 0 97.7
1.000 0 105
Limits
90 -110
90 -110
90 -110
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
RPD Ref. RPD
Limit Amt %RPO Qual
Report Date: 11/13/2020 Page 39 of 46
analyses applicable to the CWA. SDWA, and RCRA are perfonned in accordance to NELAC protocols Pertinent samphng information is located on the attached COC Confidential Business [nformation: This report is provided for the exclusive use of the addressee Privileges of subsequent use of tl-
ne of this company or any member of its staff, or reproduction of this report in connection with the advertisement, promotion or sale of any product or process. or in connection with the re-pL1blication of this report for any purpose other than for the addressee will be granted only on contact. This
American West
ANALVTICAL LABORATORIES
Client: Energy Fuels Resources, Inc.
Lab Set ID: 2010937
Project: 4th Quarter Chlorofonn 2020
Analyte Result
Lab Sample ID: MB-R145393 Date Analyzed:
Test Code: 300.0-W
Chloride < 0.100
Lab Sample ID: MB-Rl45453 Date Analyzed:
Test Code: 300.0-W
Chloride <0.100
3440 South 700 West
Salt Lake City, UT 84119
Phone: [phone], Toll Free: [phone], Fax: [phone]
e-mail: [e-mail], web: www.awal-labs.com
C SUMMARY REPORT
Contact:
Dept:
QC Type:
Reporting Amount Spiked
Units Method MDL Limit
11/06/2020 524h
mg/L E300.0 0.0565 0.100
11/09/2020 1641h
mg/L E300.0 0.0565 0.100
Tanner Holliday
WC
MBLK
Spike Ref.
Amount %REC
-Lab Sample ID: MB-R145049 Date Analyzed: 10/31/2020 1758h
Test Code: N02/N03-W-353.2
Nitrate/Nitrite (as N) < 0.0100 mg/L E353.2 0.00494 0.0100
Limits
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
RPD Ref. RPD
Amt %RPO Limit Qual
Report Date: 11/13/2020 Page 40 of 46
analyses applicable to the CWA. SOWA, and RCRA are perfom,ed in accordance to NELAC protocols Pertinent sampling infonnation is located on the attached COC. Confidential Business Information: This report is provided for the exclusive use of the addressee Privileges of subsequent use of tt-
ne of this company or any member of its staff, or reproduction of this report in connection with the advertisement, promotion or sale of any product or process. or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact This
American West
ANALYTICAL LABORATORIES
Client: Energy Fuels Resources, Inc.
Lab Set ID: 2010937
Project: 4th Quarter Chloroform 2020
Analyte Result
Lab Sample ID: 2010937-002AMS Date Analyzed:
Test Code: 300.0-W
Chloride 3,580
Lab Sample ID: 2010937-016AMS Date Analyzed:
Test Code: 300.0-W
Chloride 9.41
Lab Sample ID: 2010868-002BMS Date Analyzed:
Test Code: 300.0-W
Chloride 4,940
Lab Sample ID: 2010937-0168MS Date Analyzed:
Test Code: N02/N03-W-353.2
Nitrate/Nitrite (as N) 1.05
Lab Sample ID: 2010938-002DMS Date Analyzed:
Test Code: N02/N03-W-353.2
Nitrate/Nitrite (as N) 1.22
3440 South 700 West
Salt Lake City, UT 84119
Phone: [phone], Toll Free: [phone], Fax: [phone]
e-mail: [e-mail], web: www.awal-labs.com
C SUMMARY REPORT
Contact:
Dept:
Tanner Holliday
WC
Units Method
11/06/2020 1212h
mg/L E300.0
11/09/2020 2109h
mg/L E300 0
11/09/2020 23 5 7h
mg/L E300.0
10/31/2020 1824h
mg/L E353.2
I 0/31/2020 1829h
mg/L E353.2
MDL
28.2
0.113
56.5
0.00494
0.00494
Reporting
Limit
50.0
0.200
100
0.0100
0.0100
QC Type: MS
Amount Spiked Spike Ref.
Amount %REC
2,500 1050 IOI
10.00 0 94.1
5,000 127 96.2
1.000 0 105
1.000 0.187 103
Limits
90 -110
90 -110
90 -110
90 -110
90 -110
Kyle F. Gross
Laboratory Director
Jose Rocha
QA Officer
RPD Ref. RPD
Limit Amt %RPD
---
Qual
Report Date: 11/13/2020 Page 41 of 46
analyses applicable to the CWA. SOWA, and RCRA are perfonned in accordance to NELAC protocols Pertinent samphng infonnation is located on the attached COC. Confidential Business Lnformation This report is provided for the exclusive use of the addressee Privileges of subsequent use of tt
ne of this company or any member of its staff, or reproduction of this report in connection with the advertisement. promotion or sale of any product or process. or in connection with the re-publication of this report for any purpose other than forthe addressee will be granted only on contact This
3440 South 700 West
Salt Lake City, UT 84119 Kyle F. Gross
Phone: (80 I) 263-8686, Toll Free: ( 888) 263-8686, Fax: ( 80 I) 263-8687 Laboratory Director
e-mail: [e-mail], web: www.awal-labs.com
Jose Rocha
QA Officer
ANALYTICAL LABORATORIES "'< C SUMMARY REPORT
Client: Energy Fuels Resources, Inc. Contact: Tanner Holliday
Lab Set ID: 20 l 093 7 Dept: WC
Project: 4th Quarter Chlorofonn 2020 QC Type: MSD
--
Reporting Amount Spiked Spike Ref. RPDRef. RPO
Analyte Result Units Method MDL Limit Amount %REC Limits Amt %RPO Limit Qual
Lab Sample ID: 2010937-002AMSD Date Analyzed: 11/06/2020 1229h
Test Code: 300.0-W
Chloride 3,590 mg/L E300.0 28.2 50.0 2,500 1050 102 90 -110 3580 0.298 20
Lab Sample ID: 2010937-016AMSD Date Analyzed: 11/09/2020 2126h
Test Code: 300.0-W
Chloride 9.37 mg/L E300.0 0.113 0.200 10.00 0 93.7 90-110 9.41 0.492 20
Lab Sample ID: 2010868-002BMSD Date Analyzed: ll/10/2020 013h
Test Code: 300.0-W
Chloride 4,930 mg/L E300 0 56.5 100 5,000 127 96.0 90 -110 4940 0.269 20 -Lab Sample ID: 2010937-016BMSD Date Analyzed: 10/31/2020 1826h
Test Code: N02/N03-W-353.2
Nitrate/Nitrite (as N) 1.05 mg/L E353.2 0.00494 0.0100 1.000 0 105 90 -110 I.OS 0 10
Lab Sample ID: 2010938-002DMSD Date Analyzed: 10/31/2020 1830h
Test Code: N02/N03-W-353.2
Nitrate/Nitrite (as N) 1.21 mg/L E353.2 0.00494 0.0100 1.000 0.187 102 90 -110 1.22 0.823 10
Report Date: 11/13/2020 Page 42 of 46
analyses applicable to the CWA. SOWA, and RCRA are performed in accordance to NELAC protocols Pertinent sampling information is located on the attached COC, Confidential Business Information: This report is provided for the exclusive use of the addressee Privileges of subsequent use of ti-
ne of this company or any member of its staff, or reproduction of this report in connection with the advertisement, promotion or sale of any product or process. or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact This
American West Analytical Laboratories Rpt Emailed: UL
Denison
WORK ORDER Summary WorkOrder: 2010937 Page I of3
Client: Energy Fuels Resources, Inc. Due Date: 11/12/2020
Client ID: ENE300 Contact: Tanner Holliday
Project: 4th Quarter Chloroform 2020 QC Level: III WO Type: Project
Comments: QC 3 (no chromatograms). EDD-Denison. CC [e-mail]; (USE PROJECT for special DLs). Do not use "*R_" samples as MS/MSD.;
Sample ID Client Sample ID Collected Date Received Date Test Code Matrix Sel Storage
.___
2010937-00lA 1W4-25_10282020 10/28/2020 1035h 10/29/2020 1204h 300.0-W Aqueous df-wc
I SEL An.alytes: CL
2010937-00IB N02/N03-W-353.2 df-no2/no3
I SEL Analytes: N03N02N
2010937-001 C 8260D-W-DEN100 VOCFridge 3
Test Group_: 8260D-W-DENI00; # of Analytes: 4 I# of Surr: 4
2010937-002A 1W4-24_10282020 10/28/2020 I045h 10/29/2020 1204h 300.0-W Aqueous df-wc
1 SEL An.aif_tes: CL
2010937-0028 N02/N03-W-353.2 df-no2/no3
1 SEL Ana[ytes: N03N02N
2010937-002C 8260D-W-DEN100 VOCFridge 3
Test Group_: 8260D-W-DENJOO; # of Analytes: 4 I # of Surr: 4
2010937-003A TW4-40_10282020 10/28/2020 1322h 10/29/2020 1204h 300.0-W Aqueous df-wc
1 SEL Analytes: CL
2010937-0038 N02/N03-W-353.2 df-no2/no3
1 SEL An.alytes: N03N02N
2010937-003C 8260D-W-DEN100 VOCFridge 3
Test Group: 82§0D-W-DENJOO; # of Analytes: 4 I# o/Surr: 4
2010937-004A 1W4-21_10282020 10/28/2020 1025h 10/29/2020 1204h 300.0-W Aqueous df-wc
I SEL Anaiftes: CL
2010937-0048 N02/N03-W-353.2 df-no2/no3
I SEL Analytes: N03N02N
2010937-004C 8260D-W-DEN100 VOCFridge 3
Test Group: 82§__(JD-W-DENJ 00; J±Ef Analytes: 4 I# of Surr: 4
2010937-00SA 1W4-01_10282020 10/28/2020 1255h 10/29/2020 1204h 300.0-W Aqueous df-wc
1 SEL Analy_tes: CL
2010937-0058 N02/N03-W-353.2 df-no2/no3
1 SEL Analytes: N03N02N
2010937-00SC 8260D-W-DEN100 VOCFridge 3
Test GrouE_: 8260D-W-DENI00; # of Anal)'l!s: 4 I # of Surr: 4
Printed: 10/29/2016:10 LABORATORY CHECK: %M O RT O CN O TAT O QC O LUO 0 HOK ___ HOK __ _ HOK___ COC Emailed ____ _
WORK ORDER Summary WorkOrder: 2010937 Page 2 of3
Client: Energy Fuels Resources, Inc. Due Date: 11/12/2020
Sample ID Client Sample ID Collected Date Received Date Test Code Matrix Sel Storage
2010937-006A TW 4-04 _ 10282020 I 0/28/2020 1312h I 0/29/2020 1204h 300.0-W Aqueous df-wc
1 SEL Ana[ytes: CL
2010937-006B N02/N03-W-353.2 df-no2/no3
I SELAnalytes: N03N02N
2010937-006C 8260D-W-DEN100 VOCFridge 3
Test Group: 8260D-W-DENJOO; # of Analytes: 4 /# ofSurr: 4
2010937-00?A TW4-41_10282020 10/28/2020 1305h I 0/29/2020 1204h 300.0-W Aqueous df-wc
I SEL Analytes: CL
2010937-00?B N02/N03-W-353.2 df-no2/no3
I SEL Analytes: N03N02N
201093 7-007C 8260D-W-DEN100 VOCFridge 3
Test Group: 8260D-W-DENIOO; # of Analytes: 4 /# ofSurr: 4
2010937-008A J\,IW-26_10282020 10/28/2020 1223h 10/29/2020 1204h 300.0-W Aqueous df-wc
I SEL Analytes: CL
2010937-008B N02/N03-W-353.2 elf-no2/no3
I SELAnalytes: N03N02N
2010937-008C 8260D-W-DEN100 VOCFridge 3
Test Group: 8260D-W-DENJOO; # of Ana/ytes: 4 I # of Surr: 4
2010937-009A J\,IW-04_10282020 10/28/2020 1227h I 0/29/2020 1204h 300.0-W Aqueous df-wc
I SEL Analytes: CL
2010937-009B N02/N03-W-353.2 elf-no2/no3
I SELAna[ytes: N03N02N
20 I 093 7-009C 8260D-W-DEN100 VOCFridge 3
Test Group: 8260D-W-DENJOO; # of Analytes: 4 /# ofSurr: 4
2010937-0IOA TW4-02_10282020 10/28/2020 1240h 10/29/2020 1204h 300.0-W Aqueous df-wc
1 SEL Analytes: CL
2010937-0IOB N02/N03-W-353.2 df-no2/no3
1 SELAnalytes: N03N02N
2010937-0lOC 8260D-W-DEN100 VOCFridge 3
Test Group: 8260D-W-DENJ 00; # of Analytes: 4 I# of Surr: 4
2010937-01 lA TW4-19_10282020 10/28/2020 0950h 10/29/2020 1204h 300.0-W Aqueous df-wc
I SEL Analytes: CL
2010937-011B N02/N03-W-353.2 df-no2/no3
I SEL Analytes: N03N02N
2010937-01 IC 8260D-W-DEN100 VOCFridge 3
Test Group: 8260D-W-DENJOO; # of Analytes: 4 /# ofSurr: 4
Printed: 10/29/20 16:10 LABORATORY CHECK: %M 0 RTD CNO TAT 0 QCO LUOO HOK ___ HOK ___ HOK ___ COC Emailed
WORK ORDER Summary WorkOrder: 2010937 Page 3 of3
Client: Energy Fuels Resources, Inc. Due Date: 11/12/2020
Sample ID Client Sample ID Collected Date Received Date Test Code Matrix Sel Storage
2010937-012A TW4-11_10282020 10/28/2020 123 lh 10/29/2020 1204h 300.0-W Aqueous df-wc
I SEL Analytes: CL
2010937-0128 N02/NOJ-W-353.2 df-no2/no3
I SEL Analytes: N03N02N
2010937-012C 8260D-W-DEN100 VOCFridge 3
Test Group: 8260D-W-DENIOO; # of Analytes: 41 # ofSurr: 4
2010937-0BA 1W 4-22 _ 10282020 10/28/2020 1055h 10/29/2020 1204h 300.0-W Aqueous df-wc
1 SEL Analytes: CL
2010937-013B N02/NOJ-W-353.2 df-no2/no3
I SELAnalytes: N03N02N
2010937-0BC 8260D-W-DENIOO VOCFridge 3
Test Group: 8260D-W-DENIOO; # of Analytes: 4 1 # ofSurr: 4
2010937-014A TW 4-39 _ 10282020 10/28/2020 1215h 10/29/2020 1204h 300.0-W Aqueous df-wc
1 SEL Analytes: CL
2010937-014B N02/NOJ-W-353.2 df-no2/no3
1 SEL Analytes: N03N02N
2010937-014C 8260D-W-DENIOO VOCFridge 3
Test Group: 8260D-W-DENJOO; # of Analytes: 4 I# ofSurr: 4
2010937-0lSA TW 4-37 _ 10282020 10/28/2020 1103h 10/29/2020 1204h 300.0-W Aqueous df-wc
I SEL Analytes: CL
2010937-0158 N02/N03-W-353.2 elf-no2/no3
I SEL Analytes: N03N02N
2010937-0lSC 8260D-W-DEN100 VOCFridge 3
Test Group: 8260D-W-DEN I 00; # of Analytes: 4 I# of Surr: 4
2010937-016A TW4-60_10282020 10/28/2020 0930h 10/29/2020 1204h 300.0-W Aqueous df-wc
I SEL Analytes: CL
20I0937-0l6B N02/N03-W-353.2 df-no2/no3
1 SELAnaiytes: N03N02N
2010937-016C 8260D-W-DEN100 VOCFridge 3
Test Group: 8260D-W-DENJOO; # of Analytes: 4 /# ofSurr: 4
2010937-017A Trip Blank I 0/2812020 0930h I 0/29/2020 1204h 8260D-W-DEN100 Aqueous VOCFridge 3
Test Group: 8260D-W-DENJOO; # of Ana_Jytes: 4 1 # of_Surr: 4
Printed: 10/29/20 J 6: 10 LABORATORY CHECK: %M O RT O CN O TAT O QC O LUO 0 HOK ___ HOK~--HOK___ COC Emailed ____ _
American West
Analytical Laboratories
463 W. 3600 S. Salt Lake City, UT 84115
Phone# [phone] Toll Free# [phone]
CHAIN OF CUSTODY
All analysis \\1111 be cxmducted using NELAP accredited methods and ell data will be reported using AWAL's standard enalyte lists and reporting
llmlls (PQL} unless specifically requested otherwise on lhls Chain of Custody and/or attached documentation.
20,093·:,-
AWAL Lab Sample Set#
Page 1 of 2 .__. Fax# [phone] Eman [e-mail]
www.awal-labs.com
QC Level:
3 II Tum Around Time:
Standard I Unless other 111Tangements have been made, Due Date:
signed reports will be emailed by 5:00 pm on \ \ / 1 "'7.
the day they are due. l--
Client: Energy Fuels Resources, Inc. !X Include EDD: Laboratory Use Only
Address· 6425 S. Hwy. 191 . I
LOCUS UPLOAD
EXCEL
Field Filtered For:
Samples Were:
Blanding, UT 84511
Conlact Tanner HoWday
Phone#: [phone] Cell#: -----------For Compliance WHh:
1 Shipped~
2 Ambl~ ~
3 Temperature Q...d. •c
Email: [e-mail]; [e-mail]
D NELAP
D RCRA
D CWA
D SOWA
4 Received Broken/Leaking
Project Name: 4th Quarter Chloroform 2020
Project#:
D ELAP/A2LA
D NLLAP
(Improperly Seeledh
y (J
-------------ro#: ~ ~
o'
ci 0 O') ... 0
Cl
D Non-Compliance
D Other:
5 (;!perly Preserved N
Checked at bench
Sampler Name: Tanner Holliday I ~ ·" !2_ ~ ~ t'l
I I :§ ~ g u ~ ....... &l ~
G" ~ ~ • u
Known Hazards
&
y N
6 Received Within
~ldingTlmes
Sam_l)le ID:
TW4-25_10282020
2 TW4-24_10282020
a TW.µi()_10282020
4 TW4-21_10282020
5 ITW4-0l_l0282020
a lTW4-04_10282020
71T\V4-41_10282020
a IIIW-26_10282020
0 IMW-04 10282020
IQ• TW4-02_10282020
1 TW4-19_10282020
12 TW4-11_10282020
a TW4-22_10282020
Date Sampled
10/28/2020
Time
Sampled
1035
o i s
"" en II!:
5 IW IX
u g Sample Comments \J N
X X
i::::::: 1 :: 1: 1= 1 : 1 : 1 : 1 1 1 1 1 1 1 1 1 1 r~~':::lNA I 1012812020 I 1255 15 lw I x I x I x I I I I I I I I I I II v N NA I 10/28/2020 I 1312 15 1w I X I X I X I I I I I I I I I I II 3 ~reoentons~m~•
10/28/2020 I 1045 16 IW I X I X I X
::~=~= I ::: 1: 1: I : I : I : I I I I I I I I I I 114 ~nbrokonon:ample 8
~ependoo-8.
10/28/2020 1240 5 W X X X llabtl&;xicocRoconf N
10/28/2020 950 5 W X X X
10/28/2020 I 1247 15 IW I X I X I X
10/28/2020 1231 SIW IXIXIX
10/28/2020 1055 5 IW I XI XIX
~-·--u-••--
1
·~-·-· ;j;;:;:uy. ~1~:fffef fJ.21fJ(fll) 11Spec~llnstructkms:
z. _,' {] a£ • 1,,(2 TI_~/204 IP..!intName: Tann_erj-lollid~y_
1,#i:llt,. !Received b!··
iTime:
?rt_nt~~m~
Relinquished by: is-..
1PrttjName:
f,ellnqu. ished by:
~lg~re
PrlntNamea
Date:
'Time:
Date:
Time:
late:
1nme:
!Received by: IDate: II See the Analytical Scope of Work for Reporting Limits and VOC
rklnature lnme· llanalyte list.
P~n!Namo:
Received by: Date:
''''""""~ [Time:
Print Name:
Received by: Date:
Slonstura
1Time:
Print Nam~:
American West
Analytical Laboratories
463 W. 3600 S. Salt Lake City, UT 84115
Phone# (801) 263-S686 Ton Free# (888) 2~686 .L-~ Fax# [phone] Email [e-mail]
www.awal-labs.com
Client Energy Fuels Resources, Inc.
Address: 6425 S. Hwy. 191
Blanding, UT 84511
Contact: Tanner Holliday
Phone#: [phone] Cell#:
Email: thoWda:,@euergyfuelll,cam; K.Wel.ae~uergyfuela.com
Project Name: 4th Quarter Chloroform 2020
Project#:
PO#:
Sampler Name: Tanner Holliday
Samole ID: Date Samoled
I TW4-39_10282020 10/28/2020
; TW4-37 _10282020
I ll'W4-60_10282020
r TRJP BLANK
I
j
l
I
!
?
22
23 I
I
25 '
l 28
IUllnqUishod ~ If,.//• / Slandtu:ro 1,. AA Ad~ __. ,
:>.tnt Name: Tanner HolOdev
'lelinquished by:
Slaneh.Jre
'rtntName:
~allnqul-by.
L!&-natuA
Print Name:
RtJl!Qq<j&hed by: ..............
Print Name:
10/28/2020
10/28/2020
10/28/2020
Date:
1=
Time: J!lP-\
Date:
Time:
Cate:
mmo:
pato:
ITime:
I
Time
Samoled
1215
1103
930
930
CHAIN OF CUSTODY
All analysis will be conducted ustng NELAP accredited method& and aJI data will be report9d using AWAL's standard analyte IJSts and reporting
i mils (POL) unless speciflcaUy requested olll<lrMsa on this Chain of Cuotody and/or attached doctrnen!atlon.
QC Level: I Tum Around Time: Unless other arrangemor,te have been made,
signed reports wlll be emailed by 5:00 pm on
3 Standard tho day thoy an, due.
X Include EDD:
LOCUS UPLOAD
EXCEL
Reid FUtered For.
For Compliance With:
D NELAP
D RCRA
D CWA
D SOWA
D ELAP/A2LA
D NLLAP
Ci' o' D Non-Compliance c;j l;j 0 G' D other: "> I!! ~ .... g 0) )( 0 C: E "' 0 ('l s "' 0 ::; 0 ~ Known Hazards C: I<; If) 0 " .._ :t. ll (.) a. N & 'o E 0 a 0 "' Samole Comments .. (/) I!; >
5 w X X X
5 w X X X
5 w X X X
3 w X
=::by: r////ffu/Jd: ~ df/zq/7,IJZ{) Special Instructions:
Print Name: zo!cfJl !£P1AJof ,£ s , .... , /2.1Y-/
?-DlD~°3T
AW Al. Lab Sample Set#
Page 2 of 2
J"'Ttf rz.. I
Laboratory Use Only
Samples Were:
1 Shlppod or~
2 Ambient~
3 Temperature o.3·c
4 Received Broken/Leaking
(Improperly Sealed)
y f)
5 ~fll'lyPt""""'ed y N
ed "'"""°" y N
6 Received Within <!Jing Tones
N
COC Tape Was:
1 Present on Outer P~ Y N NA
Unbroken on OUl.ol P~ 2
Y N NA
3 Present on Sample 9 y N
4 Unbroken on Sample d y N
Discrepancies Between Sample
y N Labels and COC Rocordc,
Received by: Date: See the Analytical Scope of Work for Reporting Limits and voe
ISlonatur• analyt.e list.
Time:
Print Name.:
Received by: Date:
lsionature
Timo:
Print Name:
Received by: ume:
Slanslure
Time:
Print Name:
Analysis
Ammonia
COD
Cyanide
Metals
N02/N03
O&G
Phenols
Sulfide
TKN
TP04
CrVI+
Procedure:
Frequency:
Preservation Check Sheet
s le Set Ext, amp1
Preservative l 2 ) l./ ~
tiH<2 H2S04
pH<2H2S04
pH>12NaOH
tiH<2HN03
pH<2H2S04 %( Y...< ~3 Y.r Y-5
pH<2HCL I' ,
oH <2H2S04
pH>9NaOH,
Zn Acetate
oH<2IhS04
pH<2H2S04
pH>9
(NH4)2S04
Pour a small amount of sample in the sample lid
Pour sample from lid gently over wide range pH paper
Do Not djp the pH paper in the sample bottle or lid
Cc r2-
~,; ~;,,.,. ,
duH
r ;
'~-~ y..,.., ,
/() //
~> Y,;r
1)
2)
3)
4)
5)
6)
7)
If sample is not preserved, properly list its extension and receiving pH in the appropriate column above
Flag COC, notify client ifrequested
Place client conversation on COC
Samples may be adjusted
All samples requiring preservation
*
+
.A
#
•
The sample required additional preservative upon receipt.
The sample was received unpreserved.
The sample was received unpreserved and therefore preserved upon receipt.
The sample pH was unadjustable to a pH < 2 due to the sample matrix.
The sample pH was unadjustable to a pH> __ due to the sample matrix interference .
I 2.
~
Lab Set ID:
pH Lot#:
O;;, !'-/·
lts t.£~
~:?.010 c, 3, 2
&-S-o (o
/~ IG
~s ~ ,
TabH
Quality Assurance and Data Validation Tables
H-1 : Field QA/QC Evaluation
lx casing 2x Casing
Location Volume Volume Pumped Volume Volume Check Conductivity RPD pH
PIEZ-01 okay 2355 NC 7.48
PIEZ-02 okay 887.0 NC 7.61
PIEZ-03A okay 1272 NC 7.50
TWN-01 24.58 55.00 49.16 okay 882.0 891 .0 1.02 7.39 7.40
TWNr02 NA Continuously Pumped well -2014 NC 7.18
; : . -.. 1::,-:M:« . -~;-----,;-. 4itQ~' --·,1. ·~,.~i::t~ 1 :Pijro.P:-f.at~f' ~ ~0) 11\aaf9 , r-::~flu:.·--:1 ':~_;"lJJ;"t r.w~2 __ ---~· ·r_ •
TWN-04 42.41 99.00 84.82 okay 1039 1036 0.29 7.21 7.25 ;· ··rrwrtt\or~ IH \ ''11,~ ;,.. .. 'I I !19~2$. :;--~-· ~ :S-4.JS_: ,_ euml)'.Eijti\0,W,, 1 ,. 1~~ -1, 'tBJ.fV' -__ (Xg_, 11, ,~lij;: -~i~-
TWN-18 55.36 132.00 110.72 okay 2701 2703 0.07 6.89 6.93
TW4-22 NA Continuously Pumped well --5553 NC 7.09
TW4-24 NA Continuously Pumped well --6489 NC 6.85
TW4-25 NA Continuously Pumped well --2550 NC 7.36
NM= Not Measured. The OAP does not require the measurement of redox potential or turbidity in wells that were purged to dryness.
RPO = Relative Percent Difference
Dissolved
RPD Temperature RPD Redox RPD Turbidity RPD Oxygen RPD
NC 13.72 NC 447 NC 3.1 NC 68.4 NC
NC 13.49 NC 433 NC 1.1 NC 21.0 NC
NC 13.67 NC 460 NC 1.0 NC 100.0 NC
0.14 15.18 15.23 0.33 452 446 1.34 1.7 1.8 5.71 42.0 43.0 2.35
NC 13.40 NC 376 NC 0 NC 88.00 NC
It il(r.'6_f ' :1'3'il7' j [; 1~~-----QJl . ;-.-7 NNJ ,_-1:r.,-e.~, / __ ifj ~I r _. _,. I I -)filJ~t"L I~ Ill L, '."~ffl ~ ... ,-II ir~ ~ -... !
0.55 14.67 14.69 0.14 463 459 0.87 2.0 2.0 0.00 67.5 67.1 0.59
.Oial ,.· 1'~_.lQ;,i.. ,_ .. 1~.,.(i itf--I • ._J 1W ~~ I NO; l :~ Mf. • ,_. i____)~~r II Ef ... ~~ ~--•,Vir.,1~ ~i ··-· -·--
0.58 14.49 14.49 0.00 421 417 0.95 1 .1 1.1 0.00 2.0 2.0 0.00
NC 14.60 NC 321 NC 3.0 NC 92.0 NC
NC 13.75 NC 332 NC 0 NC 14.6 NC
NC 14.70 NC 287 NC 0 NC 0 NC
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 OAP does not require that turbidity measurements be less than 5 NTU prior to
sampling. As such, the noted observations regarding turbidity measurements less than 5 NTU are included for information purposes only.
PAGE 1 OF 1
-0 In! 1me va uatton H 2 H Id. T E 1
Allowed
Hold Time Hold Time Hold Time
Location ID Parameter Name Sample Date Analysis Date (Days) (Days) Check
PIEZ-01 Chloride 11/13/2020 11/20/2020 7 28 OK
PIEZ-01 Nitrate/Nitrite (as N) 11/13/2020 11/19/2020 6 28 OK
PIEZ-02 Chloride 11/13/2020 11/20/2020 7 28 OK
PIEZ-02 Nitrate/Nitrite (as N) 11/13/2020 11/19/2020 6 28 OK
PIEZ-03A Chloride 11/13/2020 11/20/2020 7 28 OK
PIEZ-03A Nitrate/Nitrite (as N) 11/13/2020 11/19/2020 6 28 OK
TWN-01 Chloride 11/12/2020 11/20/2020 8 28 OK
TWN-01 Nitrate/Nitrite (as N) 11/12/2020 11/19/2020 7 28 OK
TWN-02 Chloride 11/12/2020 11/20/2020 8 28 OK
TWN-02 Nitrate/Nitrite (as N) 11/12/2020 11/19/2020 7 28 OK
TWN-03 Chloride 11/13/2020 11/20/2020 7 28 OK
TWN-03 Nitrate/Nitrite (as N) 11/13/2020 11/19/2020 6 28 OK
TWN-04 Chloride 11/12/2020 11/19/2020 7 28 OK
TWN-04 Nitrate/Nitrite (as N) 11/12/2020 11/19/2020 7 28 OK
TWN-07 Chloride 11/13/2020 11/20/2020 7 28 OK
TWN-07 Nitrate/Nitrite (as N) 11/13/2020 11/19/2020 6 28 OK
TWN-18 Chloride 11/12/2020 11/19/2020 7 28 OK
TWN-18 Nitrate/Nitrite (as N) 11/12/2020 11/19/2020 7 28 OK
TWN-18R Chloride 11/12/2020 11/19/2020 7 28 OK
TWN-18R Nitrate/Nitrite (as N) 11/12/2020 11/19/2020 7 28 OK
TW4-22 Chloride 10/28/2020 11/9/2020 12 28 OK
TW4-22 Nitrate/Nitrite (as N) 10/28/2020 10/31/2020 3 28 OK
TW4-24 Chloride 10/28/2020 11/6/2020 9 28 OK
TW4-24 Nitrate/Nitrite (as N) 10/28/2020 10/31/2020 3 28 OK
TW4-25 Chloride 10/28/2020 11/6/2020 9 28 OK
TW4-25 Nitrate/Nitrite (as N) 10/28/2020 10/31/2020 3 28 OK
TW4-60 Chloride 10/28/2020 11/9/2020 12 28 OK
TW4-60 Nitrate/Nitrite (as N) 10/28/2020 10/31/2020 3 28 OK
TWN-60 Chloride 11/12/2020 11/20/2020 8 28 OK
TWN-60 Nitrate/Nitrite (as N) 11/12/2020 11/19/2020 7 28 OK
TWN-65 Chloride 11/12/2020 11/20/2020 8 28 OK
TWN-65 Nitrate/Nitrite (as N) 11/12/2020 11/19/2020 7 28 OK
H-3: Analytical Method Check
Param~ter Metho.d Method lJsed by Lab
Nitrate E353.l or E353.2 E353.2
A4500-Cl B or A4500-Cl E
Chloride or E300.0 E300.0
Both Nitrate and Chloride were analyzed with the correct analytical method.
H4R -eportinn 1m1t ec L .. Ch k
Required
Lab Reporting Dilution Reporting RL
Location Anll!Nre Limit Units I Qualifier Factor Limit Check
PlEZ-01 Chloride 1 rngfl... 10 I OK
PlEZ-01 Nitrate/Nitrite (as N) 0.1 rng/L IO 0.1 OK
PlEZ-02 Chloride 1 mg/L 5 I OK
PlEZ-02 Nitrate/Nitrite (as N) 0.1 mg/L I 0.1 OK
PlEZ-03A Chloride 2 mg/L 20 I OK
PlEZ-03A Nitrate/Nitrite (as N) 0.1 mg/L 10 0.1 OK
TWN-01 Chloride 1 mg/L 10 1 OK
TWN-01 Nitrate/Nitrite (as N) 0.1 mg/L 5 0.1 OK
TWN-02 Chloride 1 mg/L 10 1 OK
TWN-02 Nitrate/Nitrite (as N) 0.2 mJ?/L 20 0.1 OK
TWN-03 Chloride 2 mg/L 20 I OK
TWN-03 Nitrate/Nitrite (as N) 0.2 mg/L 20 0.1 OK
TWN-04 Chloride I mg/L 10 1 OK
TWN-04 Nitrate/Nitrite (as N) 0.1 mJ'.!/L 5 0.1 OK
TWN-07 Chloride I m£/L 5 1 OK
TWN-07 Nitrate/Nitrite (as N) 0.2 mg/L 20 0.1 OK
TWN-18 Chloride I mg/L 10 l OK
TWN-18 Nitrate/Nitrite (as N) 0.1 mdL 1 0.1 OK
TWN-18R Chloride 1 m£/L u 1 I OK
TWN-18R Nitrate/Nitrite (as N) 0.1 mWL u 1 0.1 OK
TW4-22 Chloride 20 mJ?/L 200 I OK
TW4-22 Nitrate/Nitrite (as N) 0.5 mg/L 50 0.1 OK
TW4-24 Chloride 20 mg/L 200 1 OK
TW4-24 Nitrate/Nitrite (as N) 0.5 mg/L 50 0.1 OK
TW4-25 Chloride 5 mg/L 50 1 OK
TW4-25 Nitrate/Nitrite (as N) 0.1 rng/L 1 0.1 OK
TW4-60 Chloride I mg/L u I 1 OK
TW4-60 Nitrate/Nitrite (as N) 0.1 rng/L u I 0.1 OK
TWN-60 Chloride I mg/L u 1 I OK
TWN-60 Nitrate/Nitrite (as N) 0.1 mdL u I 0.1 OK
TWN-65 Chloride 1 rnwL 10 I OK
TWN-65 Nitrate/Nitrite (as N) 0.1 m!r/L 2 0.1 OK
H-6 QC Control Limits for Analysis and Blanks
Method Blank Detection.
All Method Blanks for the quarter were non-detect.
Matrix Spike % Rec · very Comparison
All Matrix Spikes were within acceptance limits for the quarter.
Laboratory C ntrol ample
All Laboratory Control Samples were within acceptance limits for the quarter.
H7R . T -ece1pl emperature E 1 va uat1on
-Sample Batch Wells in Batch TempetatuTe
2011423 PIEZ-01, PIEZ-02, PIEZ-03A, TWN-1, TWN-2, TWN-3, TWN-4, 1.0 °C TWN-7, TWN-18, TWN-18R, TWN-60, TWN-65
2010937 TW4-22, TW4-24, TW4-25, TW4-60 0.3 °C
H-8 Rinsate Evaluation
All rinsate and DI blank samples were non-detect for the quarter.
Tab I
Kriged Current Quarter Isoconcentration Maps
NS = not sampled; ND = not detected
MW-24A installed during December, 2019
....._10
TW4-42
¢2.a
TW4-40
.... 2.6
MW-38
-9-14
MW-32
e ND
TW4-7
Q 4.4
TWN-1
~1.9
PIEZ-1
-1 7.5
kriged nitrate isocon and label
temporary perched monitoring well
installed April, 2019 showing
concentration in mg/L
temporary perched monitoring well
installed February, 2018 showing
concentration in mg/L
perched monitoring well
installed February, 2018 showing
concentration in mg/L
perched monitoring well showing
concentration in mg/L
temporary perched monitoring well
showing concentration in mg/L
temporary perched nitrate monitoring
well showing concentration in mg/L
perched piezometer showing
concentration in mg/L
NOTES: MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 are
• ·---••--··· ---..... -· -··· ---___ _.. _ _., ... ------~.._ ___ ..__ -!
HYDRO
GEO
CHEM, INC.
KRIGED 4th QUARTER, 2020 NITRATE (mg/L)
(NITRATE + NITRITE AS N)
WHITE MESA SITE
APPROVED DATE REFERENCE FIGURE
H :/718000/feb21 /n itrate/U nt 1220. srf 1-1
NS = not sampled; ND = not detected
MW-24A installed during December, 2019
......_100
TW4-42
¢22
TW4-40
... 35
MW-38
-<:>-43
MW-32
• 36
TW4-7
0 43
TWN-1
~29
PIEZ-1
"1 64
kriged chloride isocon and label
temporary perched monitoring well
installed April, 2019 showing
concentration in mg/L
temporary perched monitoring well
installed February, 2018 showing
concentration in mg/L
perched monitoring well
installed February, 2018 showing
concentration in mg/L
perched monitoring well showing
concentration in mg/L
temporary perched monitoring well
showing concentration in mg/L
temporary perched nitrate monitoring
well showing concentration in mg/L
perched piezometer showing
concentration in mg/L
NOTES: MW-4, MW-26, TW4-1 , TW4-2, TW4-4, TW4-11, TW4-19, TW4-21 , TW4-37, TW4-39, TW4-40 and TW4-41 are
chloroform pumping wells; TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells .
HYDRO
GEO
KRIGED 4th QUARTER, 2020 CHLORIDE (mg/L)
WHITE MESA SITE
CHEM, INC. APPROVED DATE REFERENCE FIGURE
H:/718000/feb21 /chloride/Ucl1220.srf 1-2
TabJ
Analyte Concentrations over Time
Piezometer 1
Date Nitrate (mg/I) Chloride (mg/I)
2/19/2009 6.8 NA
7/14/2009 6.8 60
9/22/2009 7.3 78
10/27/2009 7.4 61
6/2/2010 7.2 52
7/19/2010 6.8 52
12/10/2010 6.5 60
1/31/2011 7 60
4/25/2011 6.8 58
7/25/2011 7 53
10/19/2011 6.6 55
1/11/2012 7.1 78
4/20/2012 6.6 58
7/27/2012 7.2 56
10/17/2012 7.66 55
2/18/2013 8.11 56.7
4/24/2013 8.88 53.3
8/28/2013 7.83 55.1
10/16/2013 6.68 54.1
1/13/2014 6.79 56.2
5/7/2014 7.57 52.1
8/6/2014 5.1 55
10/8/2014 5.75 57.6
2/18/2015 6.41 55.9
5/12/2015 5.95 57.5
8/26/2015 4.96 64.2
10/14/2015 6.17 54.4
2/23/2016 8.31 56.5
5/17/2016 6.33 59.1
7/19/2016 6.78 53.9
10/11/2016 6.42 58.1
2/15/2017 6.75 54.5
6/1/2017 6.60 54.7
7/20/2017 6.80 58.0
10/4/2017 6.21 54.4
1/17/2018 6.35 55.3
5/9/2018 6.56 58.0
8/8/2018 6.66 63.5
11/20/2018 6.70 55.5
2/19/2019 6.72 56.8
5/30/2019 6.75 59.4
8/14/2019 6.81 61.1
10/16/2019 7.21 59.3
1/30/2020 7.12 68.9
Piezometer 1
Date
5/20/2020
7/15/2020
11/13/2020
Nitrate (mg/I)
6.95
7.36
7.51
Chloride (mg/I)
67.7
63.6
63.9
Piezometer 2
Date Nitrate (mg/I) Chloride (mg/I)
2/19/2009 0.500 NA
7/14/2009 0.500 7.0
9/22/2009 0.500 17.0
10/27/2009 0.600 7.0
6/2/2010 0.600 8.0
7/19/2010 0.600 8.0
12/10/2010 0.200 6.0
1/31/2011 0.300 9.0
4/25/2011 0.300 8.0
7/25/2011 0.100 9.0
10/19/2011 0.100 8.0
1/11/2012 0.100 9.0
4/20/2012 0.200 8.0
7/27/2012 0.200 9.0
10/17/2012 0.192 9.5
2/19/2013 0.218 9.7
4/24/2013 0.172 10.3
8/28/2013 0.198 9.7
10/16/2013 0.364 9.2
1/13/2014 0.169 11.4
5/7/2014 0.736 11.4
8/6/2014 0.800 12.0
10/8/2014 0.755 12.2
2/18/2015 0.749 12.6
5/12/2015 0.646 13.1
8/26/2015 0.662 15.5
10/14/2015 0.692 13.3
2/23/2016 0.615 13.4
5/17/2016 0.665 14.0
7/19/2016 0.669 12.4
10/11/2016 0.732 13.4
2/15/2017 0.696 12.4
6/1/2017 0.345 13.2
7/20/2017 0.555 13.4
10/4/2017 0.684 12.7
1/17/2018 0.716 13.0
5/9/2018 0.776 14.0
8/8/2018 0.818 15.1
11/20/2018 0.648 12.3
2/19/2019 0.599 12.9
5/30/2019 0.702 12.6
8/14/2019 0.606 13.2
10/16/2019 0.573 12.6
1/30/2020 0.740 14.2
Piezometer 2
Date
5/20/2020
7/15/2020
11/13/2020
Nitrate (mg/I)
0.679
0.793
0.544
Chloride (mg/I)
14.4
12.7
12.9
Piezometer 3A
Date Nitrate (mg/I) Chloride (mg/I)
5/17/2016 8.23 109
7/19/2016 8.83 93.8
10/11/2016 8.44 100
2/15/2017 10.00 111
6/1/2017 10.10 124
7/20/2017 9.31 105
10/4/2017 9.65 107
1/17/2018 8.61 94.3
5/9/2018 8.98 100
8/8/2018 12.1 122
11/20/2018 11.8 105
2/19/2019 11.8 102
5/30/2019 11.8 104
8/14/2019 10.7 96.2
10/16/2019 8.97 83.0
1/30/2020 10.5 99.5
5/20/2020 12.4 88.3
7/15/2020 12.8 82.7
11/13/2020 13.0 72.8
TWN-1
Date Nitrate (mg/I) Chloride (mg/I)
2/6/2009 0.7 19
7/21/2009 0.4 17
9/21/2009 0.4 19
10/28/2009 0.5 18
3/17/2010 0.5 17
5/26/2010 0.6 20
9/27/2010 0.6 19
12/7/2010 0.6 14
1/26/2011 0.5 17
4/20/2011 0.5 19
7/26/2011 0.5 14
10/17/2011 0.5 10
1/9/2012 0.6 15
4/18/2012 0.6 17
7/24/2012 0.6 17
10/15/2012 0.432 17.5
2/18/2013 0.681 17.6
4/23/2013 0.84 17.4
8/27/2013 1.24 24.1
10/16/2013 1.61 26.8
1/14/2014 1.47 29.2
5/6/2014 1.63 31.1
8/5/2014 1.7 28
10/8/2014 1.46 27.6
2/18/2015 1.37 27.8
5/13/2015 0.65 29.2
8/25/2015 0.324 33.2
10/13/2015 1.35 27.7
2/23/2016 1.51 30.3
5/17/2016 1.73 32.1
7/20/2016 1.76 29.6
10/6/2016 1.98 33.0
2/15/2017 2.06 31.2
6/1/2017 1.89 32.7
7/19/2017 2.07 31.2
10/4/2017 1.95 32.0
1/18/2018 1.86 30.4
5/8/2018 2.06 28.4
8/8/2018 1.97 34.2
11/20/2018 1.98 28.9
2/20/2019 2.10 31.4
5/29/2019 1.93 32.6
8/14/2019 2.15 30.3
10/16/2019 2.35 32.0
1/29/2020 2.24 33.8
TWN-1
Date Nitrate (mg/I) Chloride (mg/I)
5/20/2020 2.24 33.0
7/15/2020 2.36 30.8
11/12/2020 1.89 29.2
TWN-2
Date Nitrate (mg/I) Chloride (mg/I)
2/6/2009 25.4 29
7/21/2009 25 25
9/21/2009 22.6 17
11/2/2009 20.8 55
3/24/2010 62.1 85
6/2/2010 69 97
9/29/2010 69 104
12/9/2010 48 93
2/1/2011 43 93
4/28/2011 40 85
7/28/2011 33 74
10/20/2011 33 76
1/12/2012 31 86
4/20/2012 48 103
7/31/2012 54 93
10/17/2012 22.1 79
2/19/2013 57.3 80.5
4/24/2013 57.7 82.1
8/27/2013 80 75.9
10/16/2013 111 70.4
1/13/2014 42.6 72.4
5/7/2014 44.7 84.9
8/6/2014 42 80
10/8/2014 70.6 81
2/18/2015 48.6 84.8
5/12/2015 52.8 82.6
8/25/2015 49.7 87.8
10/14/2015 44.9 74.9
2/23/2016 86.3 73.9
5/17/2016 45.4 74.5
7/19/2016 35.3 68.8
10/11/2016 32.6 69.8
2/15/2017 27.4 65.8
6/1/2017 25.0 61.5
7/20/2017 23.9 64.2
10/4/2017 31.9 60.5
1/19/2018 19.6 57.1
5/9/2018 19.8 62.3
8/8/2018 18.6 61.5
11/20/2018 19.6 56.0
2/19/2019 19.0 50.7
5/29/2019 45.1 102
8/14/2019 23.2 50.7
10/16/2019 18.2 53.0
1/29/2020 16.5 66.1
TWN-2
Date Nitrate (mg/I)
5/20/2020 16.1
7/15/2020 17 .2
11/12/2020 12.00
Chloride (mg/I)
59.6
55.6
53.5
TWN-3
Date Nitrate (mg/I) Chloride (mg/I)
2/6/2009 23.6 96
7/21/2009 25.3 96
9/21/2009 27.1 99
11/2/2009 29 106
3/25/2010 25.3 111
6/3/2010 26 118
7/15/2010 27 106
12/10/2010 24 117
2/1/2011 24 138
4/28/2011 26 128
7/29/2011 25 134
10/20/2011 25 129
1/12/2012 25 143
4/20/2012 24 152
7/31/2012 27 158
10/17/2012 12.1 149
2/19/2013 22.2 157
4/24/2013 27.2 158
8/28/2013 20.9 171
10/17/2013 23.5 163
1/15/2014 19.6 160
5/7/2014 23.6 168
8/6/2014 19.5 174
10/9/2014 19.1 153
2/19/2015 19.4 164
5/14/2015 17.2 141
8/26/2015 16.2 156
10/14/2015 16.3 129
2/24/2016 16.8 128
5/18/2016 13.5 116
7/19/2016 16.8 110
10/7/2016 15.8 113
2/16/2017 17.4 113
6/2/2017 15.9 108
7/20/2017 15.9 106
10/5/2017 15.6 111
1/19/2018 14.4 107
5/9/2018 16.4 115
8/9/2018 19.4 149
11/21/2018 20.1 123
2/21/2019 20.7 140
5/30/2019 18.7 137
8/15/2019 19.8 133
10/17/2019 19.6 126
1/30/2020 19.4 156
TWN-3
Date Nitrate (mg/I)
5/21/2020 24.0
7/16/2020 22.2
11/13/2020 18.00
Chloride (mg/I)
136
130
137
TWN-4
Date Nitrate (mg/I) Chloride (mg/I)
2/6/2009 1.00 13.0
7/21/2009 0.05 12.0
9/21/2009 0.40 13.0
10/28/2009 0.40 11.0
3/16/2010 0.90 22.0
5/27/2010 1.00 22.0
9/27/2010 0.90 19.0
12/8/2010 1.00 21.0
1/25/2011 0.90 21.0
4/20/2011 0.90 21.0
7/26/2011 1.10 35.0
10/18/2011 0.90 20.0
1/9/2012 0.90 20.0
4/18/2012 1.10 24.0
7/25/2012 1.40 25.0
10/15/2012 1.45 26.4
2/18/2013 1.51 25.3
4/23/2013 1.63 24.4
8/27/2013 1.58 27.2
10/16/2013 1.69 29.4
1/14/2014 1.41 28.4
5/6/2014 1.55 29.6
8/5/2014 2.00 28.0
10/8/2014 1.44 30.7
2/18/2015 1.48 31.5
5/13/2015 0.73 31.9
8/25/2015 0.97 35.2
10/13/2015 1.58 28.4
2/23/2016 2.02 30.7
5/17/2016 2.97 31.7
7/20/2016 3.14 28.0
10/6/2016 3.09 31.3
2/15/2017 2.63 31.2
6/1/2017 2.37 28.6
7/19/2017 2.35 28.0
10/4/2017 2.27 27.4
1/18/2018 1.77 26.3
5/8/2018 1.86 27.7
8/8/2018 1.54 28.0
11/20/2018 1.48 22.7
2/20/2019 1.53 25.3
5/29/2019 1.51 26.5
8/14/2019 1.81 23.7
10/16/2019 2.15 25.4
1/29/2020 1.89 27.2
TWN-4
Date Nitrate (mg/I)
5/20/2020 1. 75
7/15/2020 1. 75
11/12/2020 1.18
Chloride (mg/I)
25.1
23.1
22.8
TWN-7
Date Nitrate (mg/I) Chloride (mg/I)
8/25/2009 ND 11.00
9/21/2009 ND 7.00
11/10/2009 0.10 7.00
3/17/2010 0.800 6.00
5/28/2010 1.200 6.00
7/14/2010 1.600 7.00
12/10/2010 1.000 4.00
1/27/2011 1.300 6.00
4/21/2011 1.700 6.00
7/29/2011 0.700 5.00
10/19/2011 2.200 6.00
1/11/2012 2.300 5.00
4/20/2012 1.200 6.00
7/26/2012 0.900 6.00
10/16/2012 0.641 5.67
2/19/2013 0.591 5.68
4/24/2013 1.160 5.88
8/28/2013 0.835 6.96
10/16/2013 0.986 5.70
1/15/2014 0.882 5.75
5/7/2014 0.564 5.26
8/6/2014 0.900 6.00
10/9/2014 0.968 5.93
2/19/2015 1.040 5.58
5/14/2015 0.779 6.18
8/26/2015 0.348 6.12
10/14/2015 0.672 5.84
2/24/2016 0.240 6.06
5/18/2016 0.732 6.26
7/21/2016 0.810 5.97
10/7/2016 0.698 6.17
2/16/2017 1.63 14.00
6/2/2017 3.74 29.70
7/20/2017 2.70 29.00
10/5/2017 3.58 41.40
1/19/2018 5.82 69.40
5/9/2018 10.2 94.70
8/9/2018 10.6 105
11/21/2018 11.5 104
2/21/2019 12.9 107
5/30/2019 13.5 122
8/15/2019 12.9 120
10/17/2019 14.2 119
1/30/2020 14.2 128
5/21/2020 14.6 126
TWN-7
Date
7/16/2020
11/13/2020
Nitrate (mg/I)
15.2
11.8
Chloride (mg/I)
116
121
TWN-18
Date Nitrate (mg/I) Chloride (mg/I)
11/2/2009 1.300 57.0
3/17/2010 1.600 42.0
6/1/2010 1.800 63.0
9/27/2010 1.800 64.0
12/9/2010 1.600 59.0
1/27/2011 1.400 61.0
4/26/2011 1.800 67.0
7/28/2011 1.800 65.0
10/18/2011 1.900 60.0
1/10/2012 1.900 64.0
4/19/2012 2.100 64.0
7/26/2012 2.300 67.0
10/16/2012 1.950 67.5
2/18/2013 2.270 68.7
4/23/2013 2.320 64.3
8/27/2013 2.040 70.4
10/16/2013 2.150 67.3
1/14/2014 2.330 68.4
5/6/2014 2.180 76.5
8/5/2014 1.800 70.0
10/8/2014 1.470 74.8
2/18/2015 1.000 73.3
5/13/2015 1.350 76.6
8/25/2015 0.350 81.3
10/13/2015 0.668 69.0
2/23/2016 0.648 67.6
5/17/2016 0.497 69.9
7/20/2016 0.100 52.7
10/6/2016 0.501 67.4
2/15/2017 0.470 62.1
6/1/2017 0.392 63.9
7/19/2017 0.419 59.0
10/4/2017 0.256 56.6
1/18/2018 0.332 53.1
5/8/2018 0.283 57.8
8/8/2018 0.348 59.7
11/20/2018 0.160 48.1
2/20/2019 0.155 46.4
5/29/2019 0.129 50.0
8/14/2019 0.181 46.9
10/16/2019 0.162 47.1
1/29/2020 0.224 51.9
5/20/2020 0.236 47.4
7/15/2020 0.232 44.0
11/12/2020 0.208 42.3
TW4-22
Date Nitrate (mg/I) Chloride (mg/I)
2/28/2007 20.9 347
6/27/2007 19.3 273
8/15/2007 19.3 259
10/10/2007 18.8 238
3/26/2008 39.1 519
6/25/2008 41.9 271
9/10/2008 38.7 524
10/15/2008 36.3 539
3/11/2009 20.7 177
6/24/2009 20.6 177
9/15/2009 40.3 391
12/29/2009 17.8 175
3/3/2010 36.6 427
6/15/2010 19 134
8/12/2010 18 127
8/24/2010 15 130
10/13/2010 16 134
2/23/2011 18 114
6/1/2011 17 138
8/17/2011 15 120
11/16/2011 19 174
1/19/2012 14 36
6/13/2012 12.8 35
9/12/2012 7 121
10/4/2012 14 130
2/11/2013 58 635
6/5/2013 50.2 586
9/3/2013 29.7 487
10/29/2013 45.2 501
1/27/2014 54.6 598
5/19/2014 47.2 614
8/11/2014 41.5 540
10/21/2014 54.9 596
3/9/2015 69.2 675
6/8/2015 47.1 390
8/31/2015 64.7 557
10/19/2015 56.1 567
3/9/2016 31.1 583
5/23/2016 58.4 598
7/25/2016 61.3 619
10/12/2016 61.5 588
3/8/2017 69.8 566
6/13/2017 70.8 572
7/26/2017 66.1 391
10/11/2017 80.1 600
3/12/2018 62.3 607
6/8/2018 72.5 580
TW4-22
Date Nitrate (mg/I) Chloride (mg/I)
8/22/2018 55.4 613
11/28/2018 75.7 567
3/8/2019 71.9 528
6/5/2019 83.9 662
9/4/2019 72.5 588
12/10/2019 59.9 608
2/19/2020 57.7 606
5/27/2020 60.5 578
9/4/2020 64.8 514
10/28/2020 64.9 523
TW4-24
Date Nitrate (mg/I) Chloride (mg/I)
6/27/2007 26.1 770
8/15/2007 29 791
10/10/2007 24.7 692
3/26/2008 24.4 740
6/25/2008 45.3 834
9/10/2008 38.4 1180
10/15/2008 44.6 1130
3/4/2009 30.5 1010
6/24/2009 30.4 759
9/15/2009 30.7 618
12/17/2009 28.3 1080
2/25/2010 33.1 896
6/9/2010 30 639
8/11/2010 32 556
8/24/2010 31 587
10/6/2010 31 522
2/17/2011 31 1100
5/26/2011 35 1110
8/17/2011 34 967
11/16/2011 35 608
1/18/2012 37 373
6/6/2012 37 355
8/30/2012 37 489
10/3/2012 38 405
2/11/2013 35.9 1260
6/5/2013 23.7 916
9/3/2013 32.6 998
10/29/2013 34.6 1030
1/27/2014 31.6 809
5/19/2014 35 1020
8/11/2014 31.5 1150
10/21/2014 35.7 1050
3/9/2015 34.6 944
6/8/2015 31.8 1290
8/31/2015 25.3 788
10/19/2015 29.6 909
3/9/2016 29.1 989
5/23/2016 24.2 771
7/25/2016 34.4 1,180
10/12/2016 31.9 1,010
3/8/2017 41.3 1,090
6/13/2017 39.9 1,080
7/26/2017 40.0 1,230
10/11/2017 31.7 895
3/12/2018 44.9 1,320
6/14/2018 33.6 792
8/22/2018 33.8 996
11/28/2018 38.4 1,100
3/8/2019 39.3 1,040
6/5/2019 33.2 1,020
9/4/2019 36.4 1,130
12/10/2019 33.8 1,090
TW4-24
Date Nitrate {mg/I) Chloride {mg/I)
2/19/2020 37.1 1,010
5/27/2020 41.7 1,060
9/4/2020 39.1 1,100
10/28/2020 35.9 1,050
TW4-25
Date Nitrate (mg/I) Chloride (mg/I)
6/27/2007 17.1 395
8/15/2007 16.7 382
10/10/2007 17 356
3/26/2008 18.7 374
6/25/2008 22.1 344
9/10/2008 18.8 333
10/15/2008 21.3 366
3/4/2009 15.3 332
6/24/2009 15.3 328
9/15/2009 3.3 328
12/16/2009 14.2 371
2/23/2010 14.4 296
6/8/2010 16 306
8/10/2010 14 250
10/5/2010 15 312
2/16/2011 15 315
5/25/2011 16 321
8/16/2011 16 276
11/15/2011 16 294
1/18/2012 16 304
5/31/2012 16 287
9/11/2012 17 334
10/3/2012 17 338
2/11/2013 9.04 190
6/5/2013 5.24 136
9/3/2013 5.69 119
10/29/2013 6.10 88.6
1/27/2014 2.16 85.7
5/19/2014 1.21 51.1
8/11/2014 1.6 67
10/21/2014 1.03 58.1
3/9/2015 14.4 310
6/8/2015 1.14 58.3
8/31/2015 1.63 69.2
10/21/2015 1.78 93.7
3/9/2016 0.837 62.7
5/23/2016 0.959 75.5
7/25/2016 1.78 74.1
10/12/2016 1.24 59.8
3/8/2017 17.0 285
6/13/2017 0.976 69.8
7/26/2017 1.23 70.1
10/11/2017 1.29 68.0
3/12/2018 2.23 70.5
6/14/2018 1.14 60.3
TW4-25
Date Nitrate (mg/I) Chloride (mg/I)
8/22/2018 0.810 69.1
11/28/2018 0.634 59.7
3/8/2019 0.639 65.0
6/5/2019 0.821 59.0
9/4/2019 0.548 58.1
12/10/2019 0.841 73.1
2/19/2020 0.607 86.0
5/27/2020 0.851 76.8
9/4/2020 0.994 67.3
10/28/2020 1.64 61.3
MW-30
Date Nitrate (mg/I) Date Chloride (mg/I)
6/22/2005 12.4 6/22/2005 125
9/22/2005 12.8 9/22/2005 125
12/14/2005 13.6 12/14/2005 128
3/22/2006 13.8 3/22/2006 125
6/21/2006 14.5 6/21/2006 124
9/13/2006 14.1 9/13/2006 118
10/25/2006 14.6 10/25/2006 124
3/15/2007 14.4 3/15/2007 125
8/22/2007 14.6 8/22/2007 126
10/24/2007 14.9 10/24/2007 122
3/19/2008 14.8 3/19/2008 118
6/3/2008 18.7 6/3/2008 125
8/4/2008 17.3 8/4/2008 121
11/5/2008 15.6 11/5/2008 162
2/3/2009 15.3 2/3/2009 113
5/13/2009 15.1 5/13/2009 122
8/24/2009 20.9 8/24/2009 118
10/14/2009 15.0 10/14/2009 129
1/20/2010 15.4 1/20/2010 106
2/9/2010 16.1 2/9/2010 127
4/27/2010 15.8 4/27/2010 97
5/24/2010 17.0 9/14/2010 111
6/15/2010 15.3 11/9/2010 126
8/24/2010 16.0 2/1/2011 134
9/14/2010 15.0 4/11/2011 134
10/19/2010 15.0 5/10/2011 128
11/9/2010 15.0 6/20/2011 127
12/14/2010 16.0 7/5/2011 127
1/10/2011 15.0 8/3/2011 126
2/1/2011 16.0 9/7/2011 145
3/14/2011 17.0 10/4/2011 129
4/11/2011 16.0 11/8/2011 122
5/10/2011 16.0 12/12/2011 124
6/20/2011 17.0 1/24/2012 124
7/5/2011 17.0 2/14/2012 126
8/3/2011 14.0 3/14/2012 128
9/7/2011 16.0 4/10/2012 128
10/4/2011 16.0 5/2/2012 124
11/8/2011 16.0 6/18/2012 131
12/12/2011 16.0 7/10/2012 128
1/24/2012 17.0 8/7/2012 139
2/14/2012 17.0 9/19/2012 130
MW-30
Date Nitrate (mg/I) Date Chloride (mg/I)
3/14/2012 18.0 10/23/2012 135
4/10/2012 17.0 11/13/2012 114
5/2/2012 16.0 12/26/2012 122
6/18/2012 15.0 1/23/2013 128
7/10/2012 17.0 2/26/2013 129
8/7/2012 18.0 3/20/2013 126
9/19/2012 16.0 4/17/2013 117
10/23/2012 16.2 5/15/2013 119
11/13/2012 18.5 6/25/2013 127
12/26/2012 17.2 7/10/2013 130
1/23/2013 19.2 8/20/2013 126
2/26/2013 21.4 9/18/2013 131
3/20/2013 14.3 10/22/2013 128
4/17/2013 16.8 11/20/2013 124
5/15/2013 18.8 12/18/2013 134
6/25/2013 16.1 1/8/2014 131
7/10/2013 17.6 2/25/2014 135
8/20/2013 16.4 3/11/2014 144
9/18/2013 16.9 4/23/2014 154
10/22/2013 19.7 5/14/2014 128
11/20/2013 19.5 6/3/2014 128
12/18/2013 20.7 7/29/2014 140
1/8/2014 20.3 8/20/2014 139
2/25/2014 18.4 9/9/2014 136
3/11/2014 21.3 10/7/2014 136
4/23/2014 18.3 11/10/2014 154
5/14/2014 17.9 12/10/2014 138
6/3/2014 19.4 1/21/2015 144
7/29/2014 15.6 2/4/2015 136
8/20/2014 13.8 3/3/2015 132
9/9/2014 16.8 4/8/2015 142
10/7/2014 11.0 5/12/2015 145
11/10/2014 16.2 6/24/2015 142
12/10/2014 17.1 7/7/2015 145
1/21/2015 19.5 8/11/2015 165
2/4/2015 14.9 9/15/2015 165
3/3/2015 17.3 10/7/2015 137
4/8/2015 17.0 11/11/2015 140
5/12/2015 16.1 12/9/2015 144
6/24/2015 15.8 1/20/2016 143
7/7/2015 15.3 2/10/2016 145
8/11/2015 17.9 3/2/2016 142
MW-30
Date Nitrate (mg/I) Date Chloride (mg/I)
9/15/2015 17.3 4/13/2016 144
10/7/2015 19.1 5/4/2016 139
11/11/2015 16.3 6/14/2016 142
12/9/2015 18.2 7/13/2016 137
1/20/2016 14.6 8/18/2016 150
2/10/2016 20.0 9/14/2016 146
3/2/2016 17.8 10/5/2016 148
4/13/2016 18.0 11/3/2016 143
5/4/2016 17.3 12/6/2016 158
6/14/2016 18.5 1/18/2017 150
7/13/2016 16.1 2/2/2017 150
8/18/2016 18.0 3/6/2017 250
9/14/2016 17.0 4/5/2017 146
10/5/2016 17.2 5/2/2017 146
11/3/2016 18.0 6/5/2017 153
12/6/2016 18.2 7/11/2017 160
1/18/2017 19.0 8/14/2017 173
2/2/2017 17.4 9/12/2017 149
3/6/2017 20.4 10/5/2017 153
4/5/2017 18.3 11/1/2017 156
5/2/2017 17.5 12/6/2017 159
6/5/2017 18.8 1/23/2018 152
7/11/2017 16.2 2/22/2018 158
8/14/2017 19.2 3/8/2018 167
9/12/2017 18.7 4/12/2018 145
10/5/2017 18.8 5/15/2018 174
11/1/2017 17.4 6/19/2018 169
12/6/2017 18.3 7/24/2018 177
1/23/2018 15.2 8/10/2018 170
2/22/2018 17.6 9/11/2018 183
3/8/2018 17.0 10/22/2018 140
4/12/2018 17.3 11/14/2018 166
5/15/2018 17.7 12/11/2018 154
6/19/2018 16.9 1/16/2019 157
7/24/2018 17.4 2/13/2019 167
8/10/2018 18.7 3/6/2019 160
9/11/2018 18.0 4/9/2019 138
10/22/2018 17.3 5/7/2019 175
11/14/2018 16.9 6/3/2019 165
12/11/2018 17.2 7/16/2019 181
1/16/2019 17.9 8/6/2019 190
2/13/2019 18.2 9/24/2019 176
MW-30
Date Nitrate (mg/I) Date Chloride (mg/I)
3/6/2019 16.2 10/8/2019 170
4/9/2019 18.5 11/13/2019 180
5/7/2019 17.9 12/4/2019 185
6/3/2019 15.8 1/15/2020 182
7/16/2019 19.3 2/5/2020 187
8/6/2019 15.8 3/11/2020 182
9/24/2019 17.9 4/6/2020 195
10/8/2019 18.2 5/6/2020 177
11/13/2019 17.2 6/3/2020 180
12/4/2019 17.8 7/6/2020 185
1/15/2020 16.4 8/11/2020 183
2/5/2020 17.8 9/1/2020 166
3/11/2020 19.0 10/13/2020 183
4/6/2020 18.1 11/17/2020 150
5/6/2020 18.6 12/8/2020 166
6/3/2020 18.3
7/6/2020 18.4
8/11/2020 21.1
9/1/2020 18.3
10/13/2020 16.8
11/17/2020 13.4
12/8/2020 12.0
Under the groundwater sampling program, accelerated monitoring for
nitrate began in MW-30 prior to when the accelerated monitoring for
chloride began. This difference accounts for the different number of
data points represented above.
MW-31
Date Nitrate (mg/I) Date Chloride (mg/I)
6/22/2005 24.2 6/22/2005 139
9/22/2005 22.4 9/22/2005 136
12/14/2005 23.8 12/14/2005 135
3/22/2006 24.1 3/22/2006 133
6/21/2006 25.3 6/21/2006 138
9/13/2006 24.6 9/13/2006 131
10/25/2006 25.1 10/25/2006 127
3/15/2007 23.2 3/15/2007 132
3/15/2007 22.0 3/15/2007 132
8/27/2007 23.3 8/27/2007 136
10/24/2007 24.6 10/24/2007 122
3/19/2008 25.0 3/19/2008 124
6/3/2008 29.3 6/3/2008 128
8/4/2008 28.7 8/4/2008 124
11/11/2008 29.9 11/11/2008 119
2/3/2009 23.4 2/3/2009 115
5/13/2009 22.4 5/13/2009 124
8/24/2009 15.4 8/24/2009 122
10/14/2009 22.6 10/14/2009 138
2/9/2010 21.7 2/9/2010 128
4/20/2010 22.5 4/20/2010 128
5/21/2010 23.0 9/13/2010 139
6/15/2010 21.1 11/9/2010 138
8/24/2010 22.0 2/1/2011 145
9/13/2010 21.0 4/1/2011 143
10/19/2010 20.0 5/10/2011 143
11/9/2010 20.0 6/20/2011 145
12/14/2010 20.0 7/5/2011 148
1/10/2011 19.0 8/2/2011 148
2/1/2011 21.0 9/6/2011 148
3/14/2011 22.0 10/3/2011 145
4/1/2011 21.0 11/8/2011 145
5/10/2011 20.0 12/12/2011 148
6/20/2011 22.0 1/24/2012 155
7/5/2011 22.0 2/13/2012 150
8/2/2011 20.0 3/13/2012 152
9/6/2011 21.0 4/9/2012 160
10/3/2011 21.0 5/2/2012 151
11/8/2011 21.0 6/18/2012 138
12/12/2011 21.0 7/9/2012 161
1/24/2012 21.0 8/6/2012 175
2/13/2012 21.0 9/18/2012 172
MW-31
Date Nitrate (mg/I) Date Chloride (mg/I)
3/13/2012 22.0 10/22/2012 157
4/9/2012 21.0 11/6/2012 189
5/2/2012 20.0 12/18/2012 170
6/18/2012 21.6 1/22/2013 176
7/9/2012 21.0 2/19/2013 174
8/6/2012 21.0 3/19/2013 168
9/18/2012 21.0 4/16/2013 171
10/22/2012 18.0 5/13/2013 169
11/6/2012 23.6 6/24/2013 179
12/18/2012 22.2 7/9/2013 182
1/22/2013 22.8 8/19/2013 183
2/19/2013 19.3 9/17/2013 193
3/19/2013 19.1 10/23/2013 188
4/16/2013 18.8 11/18/2013 174
5/13/2013 23.8 12/17/2013 203
6/24/2013 20.0 1/7/2014 194
7/9/2013 21.7 2/17/2014 197
8/19/2013 16.0 3/10/2014 230
9/17/2013 21.2 4/28/2014 230
10/23/2013 21.2 5/13/2014 200
11/18/2013 23.9 6/2/2014 173
12/17/2013 24.2 7/28/2014 200
1/7/2014 24.0 8/18/2014 210
2/17/2014 20.6 9/3/2014 210
3/10/2014 26.2 10/6/2014 205
4/28/2014 19.1 11/4/2014 204
5/13/2014 23.3 12/9/2014 215
6/2/2014 23.1 1/20/2015 226
7/28/2014 19.0 2/2/2015 211
8/18/2014 15.2 3/3/2015 209
9/3/2014 18.9 4/7/2015 211
10/6/2014 15.9 5/11/2015 225
11/4/2014 20.9 6/23/2015 228
12/9/2014 17.0 7/6/2015 222
1/20/2015 20.9 8/10/2015 264
2/2/2015 18.7 9/15/2015 231
3/3/2015 19.8 10/6/2015 222
4/7/2015 19.0 11/9/2015 215
5/11/2015 18.4 12/8/2015 231
6/23/2015 18.0 1/19/2016 228
7/6/2015 18.8 2/15/2016 246
8/10/2015 19.9 3/2/2016 228
MW-31
Date Nitrate (mg/I) Date Chloride (mg/I)
9/15/2015 18.9 4/12/2016 254
10/6/2015 22.0 5/3/2016 243
11/9/2015 18.4 6/15/2016 252
12/8/2015 19.5 7/12/2016 241
1/19/2016 18.9 8/16/2016 272
2/15/2016 18.8 9/13/2016 254
3/2/2016 18.0 10/4/2016 260
4/12/2016 22.8 11/1/2016 267
5/3/2016 18.6 12/5/2016 274
6/15/2016 19.2 1/17/2017 287
7/12/2016 17.4 2/7/2017 266
8/16/2016 19.7 3/6/2017 250
9/13/2016 18.6 4/4/2017 263
10/4/2016 18.8 5/1/2017 263
11/1/2016 19.8 6/5/2017 278
12/5/2016 18.5 7/11/2017 254
1/17/2017 20.9 8/14/2017 310
2/7/2017 21.1 9/11/2017 248
3/6/2017 20.4 10/2/2017 287
4/4/2017 19.5 11/1/2017 292
5/1/2017 18.3 12/4/2017 285
6/5/2017 20.8 1/24/2018 323
7/11/2017 18.0 2/20/2018 292
8/14/2017 19.5 3/5/2018 311
9/11/2017 20.2 4/17/2018 308
10/2/2017 21.0 5/14/2018 326
11/1/2017 19.2 6/18/2018 359
12/4/2017 19.2 7/23/2018 351
1/24/2018 17.0 8/10/2018 336
2/20/2018 18.8 9/10/2018 333
3/5/2018 19.0 10/24/2018 286
4/17/2018 19.0 11/13/2018 281
5/14/2018 18.8 12/10/2018 302
6/18/2018 18.0 1/15/2019 283
7/23/2018 18.0 2/12/2019 296
8/10/2018 18.3 3/5/2019 322
9/10/2018 20.1 4/10/2019 294
10/24/2018 18.3 5/7/2019 346
11/13/2018 17.9 6/3/2019 325
12/10/2018 18.3 7/15/2019 374
1/15/2019 19.0 8/5/2019 372
2/12/2019 18.6 9/23/2019 365
MW-31
Date Nitrate (mg/I) Date Chloride (mg/I)
3/5/2019 18.5 10/9/2019 318
4/10/2019 19.7 11/12/2019 338
5/7/2019 18.9 12/3/2019 343
6/3/2019 19.7 1/14/2020 381
7/15/2019 19.8 2/4/2020 370
8/5/2019 17.0 3/10/2020 368
9/23/2019 19.5 4/6/2020 376
10/9/2019 19.8 5/5/2020 361
11/12/2019 18.8 6/2/2020 377
12/3/2019 18.3 7/7/2020 370
1/14/2020 17.5 8/10/2020 368
2/4/2020 18.0 9/1/2020 367
3/10/2020 19.2 10/19/2020 345
4/6/2020 18.8 11/16/2020 251
5/5/2020 20.1 12/7/2020 311
6/2/2020 18.7
7/7/2020 19.2
8/10/2020 21.6
9/1/2020 18.4
10/19/2020 18.6
11/16/2020 16.5
12/7/2020 18.8
Under the groundwater sampling progran, accelerated monitoring
for nitrate began in MW-31 prior to when the accelerated
monitoring for chloride began. This difference accounts for the
different number of data points represented above.
TW4-19
Date Nitrate {mg/I) Date Chloride (mg/I)
7/22/2002 42.80 12/7/2005 81
9/12/2002 47.60 3/9/2006 86
3/28/2003 61.40 7/20/2006 123
6/23/2003 11.40 11/9/2006 134
7/15/2003 6.80 2/28/2007 133
8/15/2003 4.00 8/15/2007 129
9/12/2003 5.70 10/10/2007 1~2
9/25/2003 9.20 3/26/2008 131
10/29/2003 7.70 6/25/2008 128
11/9/2003 4.80 9/10/2008 113
8/16/2004 9.91 10/15/2008 124
9/17/2004 4.50 3/4/2009 127
3/16/2005 5.30 6/23/2009 132
6/7/2005 5.70 9/14/2009 43
8/31/2005 4.60 12/14/2009 124
12/1/2005 0.10 2/17/2010 144
3/9/2006 4.00 6/9/2010 132
6/14/2006 5.20 8/16/2010 142
7/20/2006 4.30 10/11/2010 146
11/9/2006 4.60 2/17/2011 135
2/28/2007 4.00 6/7/2011 148
8/15/2007 4.10 8/17/2011 148
10/10/2007 4.00 11/17/2011 148
3/26/2008 2.20 1/23/2012 138
6/25/2008 2.81 6/6/2012 149
9/10/2008 36.20 9/5/2012 149
10/15/2008 47.80 10/3/2012 150
3/4/2009 3.20 2/11/2013 164
6/23/2009 2.40 6/5/2013 148
9/14/2009 0.10 9/3/2013 179
12/14/2009 26.70 10/29/2013 206
2/17/2010 2.00 1/27/2014 134
6/9/2010 4.40 5/19/2014 152
8/16/2010 5.90 8/11/2014 140
10/11/2010 2.70 10/21/2014 130
2/17/2011 17.00 3/9/2015 238
6/7/2011 12.00 6/8/2015 180
8/17/2011 3.00 8/31/2015 326
11/17/2011 5.00 10/19/2015 252
1/23/2012 0.60 3/9/2016 276
6/6/2012 2.40 5/23/2016 201
9/5/2012 2.50 7/25/2016 214
10/3/2012 4.10 10/13/2016 200
2/11/2013 7.99 3/8/2017 461
6/5/2013 2.95 6/13/2017 135
TW4-19
Date Nitrate (mg/I) Date Chloride (mg/I)
9/3/2013 17.60 7/26/2017 218
10/29/2013 4.70 10/11/2017 139
1/27/2014 1.62 3/12/2018 193
5/19/2014 1.34 6/8/2018 138
8/11/2014 1.60 8/22/2018 166
10/21/2014 4.72 11/28/2018 140
3/9/2015 8.56 3/8/2019 197
6/8/2015 0.92 6/5/2019 160
8/31/2015 11.60 9/4/2019 153
10/19/2015 10.60 12/10/2019 147
3/9/2016 15.70 2/19/2020 205
5/23/2016 1.27 5/27/2020 147
7/25/2016 10.50 9/4/2020 188
10/13/2016 10.00 10/28/2020 104
3/8/2017 11.10
6/13/2017 0.243
7/26/2017 1.12
10/11/2017 0.377
3/12/2018 8.61
6/8/2018 0.494
8/22/2018 2.55
11/28/2018 0.233
3/8/2019 6.58
6/5/2019 8.96
9/4/2019 0.332
12/10/2019 0.535
2/19/2020 10.10
5/27/2020 1.14
9/4/2020 11.60
10/28/2020 1.10
The sampling program for TW4-19 was updated in the fourth quarter of 2005
to include analysis for chloride as well as nitrate. This change accounts for the
different number of data points represented above.
TW4-21
Date Nitrate (mg/I) Date Chloride (mg/I)
5/25/2005 14.6 12/7/2005 353
8/31/2005 10.1 3/9/2006 347
11/30/2005 9.6 7/20/2006 357
3/9/2006 8.5 11/8/2006 296
6/14/2006 10.2 2/28/2007 306
7/20/2006 8.9 6/27/2007 327
11/8/2006 8.7 8/15/2007 300
2/28/2007 8.7 10/10/2007 288
6/27/2007 8.6 3/26/2008 331
8/15/2007 8.6 6/25/2008 271
10/10/2007 8.3 9/10/2008 244
3/26/2008 14.3 10/15/2008 284
6/25/2008 8.8 3/11/2009 279
9/10/2008 7.6 6/24/2009 291
10/15/2008 8.0 9/15/2009 281
3/11/2009 8.3 12/22/2009 256
6/24/2009 8.1 2/25/2010 228
9/15/2009 9.2 6/10/2010 266
12/22/2009 8.4 8/12/2010 278
2/25/2010 8.4 10/13/2010 210
6/10/2010 12.0 2/22/2011 303
8/12/2010 14.0 6/1/2011 297
10/13/2010 7.0 8/17/2011 287
2/22/2011 9.0 11/16/2011 276
6/1/2011 13.0 1/19/2012 228
8/17/2011 14.0 6/13/2012 285
11/16/2011 13.0 9/13/2012 142
1/19/2012 15.0 10/4/2012 270
6/13/2012 11.0 2/13/2013 221
9/13/2012 13.0 6/18/2013 243
10/4/2012 14.0 9/12/2013 207
2/13/2013 11.8 11/13/2013 206
6/18/2013 13.8 2/5/2014 200
9/12/2013 10.3 5/22/2014 243
11/13/2013 9.0 8/27/2014 230
2/5/2014 11.4 10/29/2014 252
5/22/2014 11.5 3/12/2015 255
8/27/2014 7.1 6/8/2015 494
10/29/2014 10.0 8/31/2015 499
TW4-21
Date Nitrate (mg/I) Date Chloride (mg/I)
3/12/2015 10.9 10/19/2015 413
6/8/2015 13.1 3/9/2016 452
8/31/2015 14.7 5/23/2016 425
10/19/2015 14.3 7/25/2016 457
3/9/2016 14.6 10/12/2016 439
5/23/2016 13.1 3/8/2017 478
7/25/2016 16.5 6/13/2017 309
10/12/2016 13.5 7/26/2017 447
3/8/2017 17.7 10/11/2017 378
6/13/2017 9.5 3/12/2018 447
7/26/2017 18.2 6/8/2018 387
10/11/2017 16.9 8/22/2018 182
3/12/2018 15.8 10/22/2018 392
6/8/2018 14.1 3/8/2019 180
8/22/2018 0.236 6/5/2019 456
10/22/2018 15.2 9/4/2019 478
3/8/2019 8.99 12/10/2019 339
6/5/2019 17.5 2/19/2020 446
9/4/2019 14.7 5/27/2020 353
12/10/2019 5.73 9/4/2020 382
2/19/2020 8.93 10/28/2020 411
5/27/2020 15.4
9/4/2020 12.6
10/28/2020 16.3
TabK
Concentration Trend Graphs
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0
0 0 C? 0
Ol·Unr
6 ~-qa.:J
L~-das
9~·A'B11'J
v~-oaa
8~-Bnv
l~·Jd\f
O~·AON
so-1nr
en
C: 0 .: cu ... -C:
Cl)
(.)
C:
0 (.)
Cl)
"C "i:
..2 .c: (.)
co .... I z 3: I-
0 g 0 0 co
0 ~ 0 0 <D
q 0
0 0
ll) (116wf
0 0 ('t)
0 0 C\I
0 0
T""
0 0
oi-unr
L~-das
9 ~-ABV\I
v~-oaa
£~-6nv
c~-JdV
O~-AON
60-1nr
II)
C
0 ·-..,
n, ... ..,
C
QJ u
C
0 u
QJ ..,
n, ... .., ·-z
N
N I
111::1" ~
0 en 0 00 0 " 0 i.n
1/Sw
0 <:t 0 C"I") 0 N 0 .... 0
2/28/2007
6/27/2007
8/15/2007
10/10/2007
3/26/2008
6/25/2008
9/10/2008
10/15/2008
3/11/2009
6/24/2009
9/15/2009
12/29/2009
3/3/2010
6/15/2010
8/12/2010
8/24/2010
10/13/2010
2/23/2011
6/1/2011
8/17/2011
11/16/2011
1/19/2012
6/13/2012
9/12/2012
10/4/2012
2/11/2013
6/5/2013
9/3/2013
10/29/2013
1/27/2014
5/19/2014
8/11/2014
10/21/2014
3/9/2015
6/8/2015
8/31/2015
10/19/2015
3/9/2016
5/23/2016
7/25/2016
10/12/2016
3/8/2017
6/13/2017
7/26/2017
10/11/2017
3/12/2018
6/8/2018
8/22/2018
11/28/2018
3/8/2019
6/5/2019
9/4/2019
12/10/2019
2/19/2020
5/27/2020
9/4/2020
10/28/2020
0
I-' 0 0
N 0 0
w 0 0
mg/L
.i:,. 0 0
1./1 0 0
O"I 0 0 " 0 0
00 0 0
-I ~ ~ I
N
N
n ::r -0 .., -· C.
tD
n 0 ::::, n
tD ::::,
r+ ..,
01 r+ -· 0 ::::,
«I'
TW4-24 Nitrate Concentrations
50
45
40
35
30
.....
tia 25
E
20
15
10
5
0
~ ~ ~ ~ ~ & ~ ~ y y y y ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~w~~~~~~\~~\~w~~t~t (o\ \)\ (o\ \)\ (o\ '),\ V Cb\ '),\ Cb\ "y\ Cb\ '),\ 0, "y\ Cb\ ":) Cb\ ":) '\ ":) '\ ":)\ Cb\ ":) 0, t'\ .• \ 0, ~ ~ "'), V
U)
C
0 ·-.... ~ ....
C a, u C
0 u
a,
"tJ ·-'-0
..c u
~ N I ~ ~ I-
0 0 ~
0 0 N .-i
0 0 0 .-i
0 0 00
1/~w
0 0 I.O
0 0 "<t
0 0 N
0
u,
C
0 ·-..,
ns ... ..,
C
aJ u
C
0 u
aJ ..,
~ .., ·-z
a.n N
I ~ ~
in N 0
N
1/Sw
0 ,-j 0
u,
C
0 ·-....,
ns ... ....,
C cu u
C
0 u
cu
"'C ·-...
0
~ u
a.n
N
I ~ 3: I-
0 LI) .,,. 0 0 .,,. 0 LI)
!'I')
0 0 !'I')
0 LI)
N
1/Sw
0 0 N
0 0 .-I
0 i.n 0
.... .... N N 0 V, 0 V, 0 V,
0 0 0 0 0 0
6/22/2005
6/21/2006
8/22/2007
8/4/2008
8/24/2009
4/27/2010
9/14/2010
1/10/2011
5/10/2011
9/7/2011
1/24/2012
5/2/2012
9/19/2012 s
1/23/2013 :E 5/15/2013 I w 9/18/2013 0
1/8/2014 2
5/14/2014 -· r+
9/9/2014
.,
QJ
1/21/2015 r+ t1)
5/12/2015 n
9/15/2015 0 :::, 1/20/2016 n
5/4/2016 t1)
:::,
9/14/2016 r+ .,
1/18/2017 QJ r+ 5/2/2017 -· 0 9/12/2017 :::,
1/23/2018 (I)
5/15/2018
I-' I-' "" "" OJ u, 0 u, 0 u, 0 0 0 0 0 0 0 0
6/1/2005
12/1/2005
6/1/2006
12/1/2006
6/1/2007
12/1/2007
6/1/2008
12/1/2008
6/1/2009 s 12/1/2009 ~ 6/1/2010 I
12/1/2010 w
0
6/1/2011 n :r 12/1/2011 -0
6/1/2012 ., -· a. 12/1/2012 tD
6/1/2013 n
12/1/2013 0
:I n 6/1/2014 tD
12/1/2014 :I ,... .,
6/1/2015 QJ ,...
12/1/2015 -· 0
6/1/2016 :I
V,
12/1/2016
6/1/2017
12/1/2017
6/1/2018
12/1/2018
6/1/2019
12/1/2019
6/1/2020
12/1/2020
I-' .... N N w w 0 V, 0 V, 0 V, 0 V,
0 0 0 0 0 0 0 0
6/22/2005
6/21/2006
3/15/2007
6/3/2008
5/13/2009
4/20/2010
9/13/2010
1/10/2011
5/10/2011
9/6/2011
1/24/2012
5/2/2012 3;: 9/18/2012
1/22/2013 :E I
5/13/2013 w
t,-1
9/17/2013 z
1/7/2014 -· ,... ...
5/13/2014 QJ ,...
9/3/2014 It)
1/20/2015 n 0
5/11/2015 ::::s
9/15/2015 n
It)
1/19/2016 ::::s ,...
5/3/2016 al ,...
9/13/2016 -· 0
1/17/2017 ::::s
V)
5/1/2017
9/11/2017
1/24/2018
5/14/2018
9/10/2018
1/15/2019
5/7/2019
9/23/2019
1/14/2020
5/5/2020
9/1/2020
I-" I-" N N (J.J (J.J .j::,, .j::,,
U'I 0 U'I 0 U'I 0 U'I 0 U'I 0 0 0 0 0 0 0 0 0 0
6/1/2005
11/1/2005
4/1/2006
9/1/2006
2/1/2007
7/1/2007
12/1/2007
5/1/2008
10/1/2008
3/1/2009
8/1/2009
1/1/2010 ~
6/1/2010 ~
11/1/2010 I w
4/1/2011 """' 9/1/2011 n :::r -2/1/2012 0 ""I
7/1/2012 -· C.
12/1/2012 CD
5/1/2013 n
0
10/1/2013 :::, n
3/1/2014 CD :::,
8/1/2014 r+
""I
1/1/2015 QJ r+ -· 6/1/2015 0 :::,
11/1/2015 "'
4/1/2016
9/1/2016
2/1/2017
7/1/2017
12/1/2017
5/1/2018
10/1/2018
3/1/2019
8/1/2019
1/1/2020
6/1/2020
11/1/2020
V,
C
0 ·-...,
~ ...,
C cu u
C
0 u
cu ...,
~ ..., ·-
0 0 ci "
0 0 ci I.C
0 q
0 u,
0 0 ci '<:t'
0 q
0 M
8 ci N
.... .... N u, 0 u, 0 0 0 0 0 0
12/1/2005
5/1/2006
10/1/2006
3/1/2007
8/1/2007
1/1/2008
6/1/2008
11/1/2008
4/1/2009
9/1/2009
2/1/2010
7/1/2010
12/1/2010
5/1/2011
10/1/2011
3/1/2012
8/1/2012
1/1/2013
6/1/2013
11/1/2013
4/1/2014
9/1/2014
2/1/2015
7/1/2015
12/1/2015
5/1/2016
10/1/2016
3/1/2017
8/1/2017
1/1/2018
6/1/2018
11/1/2018
4/1/2019
9/1/2019
2/1/2020
7/1/2020
N u,
0
w 0 0
w u,
0
.,,.
0 0
.,,.
u,
0
u,
0 0
-I ~ .a::. I
t,-lr,
CD
n :::r -0
""I -· C.
tD
n
0 :::s n tD :::s ,...
""I QJ ,... -· 0 :::s U)
TW4-21 Nitrate Concentrations
20.0 -.-----------------------------------------------
18.0 +------------------------------------1l----------
16.0 I A I I I ~ I \ I
14.0 I I • • I I • :a: I ... \ I V I I • R I I I \ I
12.0 I I I I • I I I / V I I II I I I I I I
10.0 I , I I I I I I '\ I I • I I I U I I
s.o l ""',.,..... ...... 1/ II II 11
6.0 -+----------------------------------------+......----------
4.0 -1---------------------------------------------1-...._-----~
2.0 -1-------------------------------------------------
0.0
<:::,<:::,<-, ~<o
n\~ ~ ~ $ -~ ~ ~ ~ y y ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 4 4 4 4 4 4 4 4 4 4 4 4 4 4
... "' w .i:,. V, O'I 0 0 0 0 0 0 0 0 0 0 0 0 0
12/1/2005
5/1/2006
10/1/2006
3/1/2007
8/1/2007
1/1/2008
6/1/2008
11/1/2008
4/1/2009
9/1/2009
2/1/2010
7/1/2010 ~ 12/1/2010
~ 5/1/2011 I N
10/1/2011 t-,a,
3/1/2012 n :r -8/1/2012 0 ., -· 1/1/2013 a.
6/1/2013
ti)
n
11/1/2013 0 :::,
4/1/2014 n ti)
9/1/2014 :::,
~ .,
2/1/2015 01 ~ -· 7/1/2015 0 :::,
12/1/2015 u,
5/1/2016
10/1/2016
3/1/2017
8/1/2017
1/1/2018
6/1/2018
11/1/2018
4/1/2019
9/1/2019
2/1/2020
7/1/2020
12/1/2020
5/1[2021
TabL
CSV Transmittal Letter
Kathy Weinel
From:
Sent:
To:
Cc:
Subject:
Attachments:
Mr. Goble,
Kathy Weinel
Thursday, February 18, 2021 2:45 PM
Phillip Goble
Dean Henderson; Terry Slade; Scott Bakken; Logan Shumway; David Frydenlund; Garrin
Palmer
Transmittal of CSV Files White Mesa Mill 2020 Q4 Nitrate Monitoring
2011423-report-EDD.csv; Q4 2020 DTW all programs.csv; Q4 2020 Nitrate Field Data.csv
Attached to this e-mail is an electronic copy of laboratory results for nitrate monitoring conducted at the White Mesa
Mill during the fourth quarter of 2020, in Comma Separated Value (CSV) format.
Please contact me at 303-389-4134 if you have any questions on this transmittal.
Yours Truly
{/eF
,_,,_. Energy Fuels Resources (USA) Inc.
Kathy Weinel
Quality Assurance Manager
t: 303.389.4134 It 303.389.4125
225 Union Blvd., Suite 600
Lakewood, CO 80228
http://www.energyfuels.com
This e-mail is intended for the exclusive use of person(s) mentioned as the recipient(s). This message and any attached files with it are confidential and may
contain privileged or proprietary information. If you are not the intended recipient(s) please delete this message and notify the sender. You may not use, distribute
print or copy this message if you are not the intended recipient(s).
1
TabM
Residual Mass Estimate Analysis Figure
Tab M-Figures
....... g_
G) -ffl E -Ill w
Ill Ill ffl :a
G)
E :::, a:
G) -I? -z
45000 ...-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
40000 +-~--t,--~~----f-t-~~~~~~~~~~~~~~~~~~------te--tr--~~~~~~~~~~~~~~~~~~~~~-------1
'
...._
35000
I I I ~ \ I\ r ...._
30000
25000 -+---~~~~~~~~~~~-14--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-i
20000 +..----,,---,-,--..,...,--,----,-,---.-,--,-----,.,---.-,--.,.....--,.,----,-,--...----,,----,-,---,----,,---,-,--..,...---,,----,-,--..,...,--,----,-,--....,.....,--,----,,,---.-,--.,.....--,,,----,-,---,-----1
#~~~~~~~~~~~~####~~~~####~~~~#### /?##??#~~?#~??~~~~#~??#~~~#~??~~?
----+---Nitrate Plume Mass Estimate, ---Linear (Nitrate Plume M~ Es~mates)
HYDRO
GEO
CHEM,INC.
Time Series of Nitrate Plume Mass Estimates
Approved I Date
SJS
Date File Name 'Figure
Nmtrand 4020.xls M .1 Author
H:\718000\feb21 \nitrate\masscalc\Nmtrend4Q20.xls: Fig M.1
Tab M -Tables
The Residual Mass Estimate Analysis Tables
Table M.1
Residual Nitrate Plume Mass
residual
plume
auarter mass (lb)
baseline 43700
01 2013 41350
02 2013 34140
03 2013 36930
04 2013 41150
01 2014 31410
02 2014 30620
03 2014 24140
04 2014 34370
01 2015 38740
02 2015 33042
03 2015 34880
04 2015 30980
01 2016 33083
02 2016 28465
03 2016 32230
04 2016 31798
01 2017 43787
02 2017 32145
03 2017 32939
04 2017 31501
01 2018 33616
02 2018 31257
03 2018 25568
04 2018 28805
01 2019 29509
02 2019 31455
03 2019 30976
04 2019 29870
01 2020 32740
02 2020 30467
03 2020 35525
04 2020 25875
Notes:
lbs= pounds