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Home My WebLink AboutDRC-2023-076538 - 0901a068812bba6a?e~I T _/ I ~ ~ ~ _ 1 ENERGY FUELS November 15, 2023 Sent VIA EXPEDITED DELIVERY Mr. Doug Hansen Director Div of Waste Management and Radiation Control NOV 1 7 2023 Division of Waste Management and Radiation Control Utah Department of Environmental Quality 195North 1950West Salt Lake City, UT 84116 Energy Fuels Resources (USA) Inc. 225 Union Blvd. Suite 600 Lakewood, CO, US, 80228 303 974 2140 ,vww.ener2vfu els.com Re: Transmittal of 3rd Quarter 2023 Routine Chloroform Monitoring Report UDEQ Docket No. UGW-20-01 White Mesa Uranium Mill Dear Mr. Hansen: Enclosed are two copies of the White Mesa Uranium Mill Chloroform Monitoring Report for the 3rd Quarter of 2023 as required by the Stipulation and Consent Order, UDEQ Docket No. UGW-20-01 as well as two CDs, that each contains a word searchable electronic copy of the report. If you should have any questions regarding this report please contact me. Yours very truly, ENERGY FUELS RESOURCES (USA) INC. Kathy W einel Director, Regulatory Compliance CC: David Frydenlund Logan Shumway Scott Bakken Garrin Palmer Jordan App Dawn Kolkman DRC-2023-076538 November 15, 2023 Sent VIA EXPEDITED DELIVERY Mr. Doug Hansen Director Division of Waste Management and Radiation Control Utah Department of Environmental Quality 195 North 1950 West Salt Lake City, UT 84116 Energy Fuels Resources (USA) Inc. 225 Union Blvd. Suite 600 Lakewood, CO, US, 80228 303 974 2140 w w.energ fuels.c m Re: Transmittal of 3rd Quarter 2023 Routine Chloroform Monitoring Report UDEQ Docket No. UGW-20-01 White Mesa Uranium Mill Dear Mr. Hansen: Enclosed are two copies of the White Mesa Uranium Mill Chloroform Monitoring Report for the 3rd Quarter of 2023 as required by the Stipulation and Consent Order, UDEQ Docket No. UGW-20-01 as well as two CDs, that each contains a word searchable electronic copy of the report. If you should have any questions regarding this report please contact me. Yours very truly, ENERGY FUELS RESOURCES (USA) INC. Kathy Weinel Director, Regulatory Compliance CC: David Frydenlund Logan Shumway Scott Bakken Garrin Palmer Jordan App Dawn Kolkman White Mesa Uranium Mill Chloroform Monitoring Report State of Utah Stipulation and Consent Order Docket No. UGW-20-01 (July through September) 2023 Prepared by: Energy Fuels Resources (USA) Inc. 225 Union Boulevard, Suite 600 Lakewood, CO 80228 November 15, 2023 TABLE OF CONTENTS 1.0 INTRODUCTION ................................................................................................. 1 2.0 CHLOROFORM MONITORING ....................................................................... 1 2.1 Samples and Measurements Taken During the Quarter ...................................... 1 2.1.1 Chloroform Monitoring ............................................................................... 1 2.1.2 Parameters Analyzed .................................................................................... 2 2.1.3 Groundwater Head Monitoring .................................................................... 2 2.2 Sampling Methodology and Equipment and Decontamination Procedures ........ 3 2.2.1 Decontamination Procedures ....................................................................... 3 2.2.2 Well Purging and Depth to Groundwater ................................................... .4 2.2.3 Sample Collection ........................................................................................ 5 2.3 Field Data ............................................................................................................. 5 2.4 Depth to Groundwater Data and Water Table Contour Map ............................... 6 2.5 Laboratory Results ............................................................................................... 6 2.5.1 Copy of Laboratory Results ......................................................................... 6 2.5.2 Regulatory Framework ................................................................................ 6 3.0 QUALITY ASSURANCE AND DATA VALIDATION .................................... 6 3 .1 Field QC Samples ................................................................................................ 7 3.2 Adherence to Mill Sampling SOPs ...................................................................... 7 3 .3 Analyte Completeness Review ............................................................................ 7 3 .4 Data Validation .................................................................................................... 7 3.4.1 Field Data QA/QC Evaluation ..................................................................... 8 3.4.2 Holding Time Evaluation ............................................................................ 9 3.4.3 Receipt Temperature Evaluation ................................................................. 9 3.4.4 Analytical Method Checklist ....................................................................... 9 3.4.5 Reporting Limit Evaluation ......................................................................... 9 3.4.6 Receipt pH Evaluation ............................................................................... I 0 3.4.7 Trip Blank Evaluation ................................................................................ 10 3.4.8 QA/QC Evaluation for Sample Duplicates ................................................ 10 3.4.9 Rinsate Sample Check ............................................................................... 10 3.4.10 Other Laboratory QA/QC .......................................................................... 11 4.0 INTERPRETATION OF DATA ........................................................................ 12 4.1 Interpretation of Groundwater Levels, Gradients and Flow Directions ............ 12 4.1.1 Current Site Groundwater Contour Map ................................................... 12 4.1.2 Comparison of Current Groundwater Contour Maps to Groundwater Contour Maps for Previous Quarter ......................................................... 19 4.1.3 Hydrographs .............................................................................................. 21 4.1.4 Depth to Groundwater Measured and Groundwater Elevation ................. 21 4.1.5 Evaluation of the Effectiveness of Hydraulic Capture ............................. 21 4.2 Review of Analytical Results ............................................................................ 26 4.2.1 Current Chloroform Isoconcentration Map ............................................... 26 4.2.2 Chloroform Concentration Trend Data and Graphs .................................. 26 4.2.3 Interpretation of Analytical Data ............................................................... 26 5.0 LONG TERM PUMP TEST AT MW-4, MW-26, TW4-19, TW4-20, AND TW4-4 OPERATIONS REPORT ...................................................................... 30 5.1 Introduction ........................................................................................................ 30 5.2 Pump Test Data Collection ................................................................................ 30 5.3 Water Level Measurements ............................................................................... 31 5 .4 Pumping Rates and Volumes ............................................................................ .31 5.4.1 TW4-41 ............................................................................................................. 31 5.5 Mass Removed and Plume Residual Mass ....................................................... .32 5.6 Inspections ......................................................................................................... 33 5.7 Conditions That May Affect Water Levels in Piezometers ............................... 33 6.0 CORRECTIVE ACTION REPORT .................................................................. 33 6.1 Assessment of Previous Quarter's Corrective Actions ...................................... 33 7.0 CURRENT COMPLIANCE STATUS .............................................................. 33 7.1 Long Term Chloroform Plume Control.. ........................................................... 33 7.2 Well Construction, Maintenance and Operation ............................................... 34 7.3 Disposal of Extracted Groundwater ................................................................... 34 7.4 Compliance Well Performance .......................................................................... 35 7.5 Chloroform Plume Monitoring for Wells within 500 Feet of the Property Boundary ........................................................................................................... 35 8.0 CONCLUSIONS AND RECOMMENDATIONS ............................................ 35 9.0 ELECTRONIC DATA FILES AND FORMAT .............................................. .41 10.0 SIGNATURE AND CERTIFICATION ............................................................ 42 LIST OF TABLES Table 1 Summary of Wells Sampling for the Period 11 INDEX OF TABS Tab A Site Plan and Perched Well Locations White Mesa Site Tab B Order of Sampling and Field Data Worksheets Tab C Weekly and Monthly Depth to Water Data Tab D Kriged Current Quarter Groundwater Contour Map, Capture Zone Map, Capture Zone Details Map and Depth to Water Data Tab E Kriged Previous Quarter Groundwater Contour Map Tab F Depths to Groundwater and Elevations and Hydrographs of Groundwater Elevations over Time for Chloroform Monitoring Wells Tab G Chloroform Mass Removed and Volume Pumped in Chloroform Pumping Wells over Time Tab H Laboratory Analytical Reports Tab I Quality Assurance and Data Validation Tables I-1 Field Data QA/QC Evaluation I-2 Holding Time Evaluation I-3 Receipt Temperature Check I-4 Analytical Method Check I-5 Reporting Limit Evaluation I-6 Trip Blank Evaluations I-7 QA/QC Evaluation for Sample Duplicates I-8 QC Control Limits for Analyses and Blanks I-9 Rinsate Check Tab J Kriged Current Quarter Chloroform Isoconcentration Map Tab K Analyte Concentration Data and Chloroform Concentration Trend Graphs over Time Tab L Contour Map Based Chloroform Plume Mass Calculations and Data Over Time Tab M CSV Transmittal Letter Tab N Exceedance Notices for the Reporting Period l1l 1.0 INTRODUCTION The presence of chloroform was initially identified in groundwater at the White Mesa Mill (the "Mill") as a result of split sampling performed in May 1999. The discovery resulted in the issuance of State of Utah Notice of Violation ("NOV") and Groundwater Corrective Action Order ("CAO") State of Utah Department of Environmental Quality ("UDEQ"), Division of Waste Management and Radiation Control ("DWMRC") Docket No. UGW-20-01, which required that Energy Fuels Resources (USA) Inc. ("EFRI") submit a Contamination Investigation Plan and Report pursuant to the provisions of UAC R317-6-6.15(D). In response to the NOV, EFRI submitted a series of documents outlining plans for investigation of the chloroform contamination. This plan of action and preliminary schedule was set out in EFRI submittals dated: September 20, 1999; June 30, 2000; April 14, 2005; and November 29, 2006. EFRI submitted a draft Groundwater Corrective Action Plan ("GCAP") dated August 22, 2007. The draft GCAP was reviewed by the Director, who advised EFRI in 2013 that modifications were required. In an effort to expedite and formalize active and continued remediation of the chloroform plume, both parties have agreed to the GCAP found in Attachment 1, of the final Stipulation and Consent Order ("SCO") dated September 14, 2015. This is the Quarterly Chloroform Monitoring Report for the third quarter of 2023 as required under the SCO. This report also includes the Operations Report for MW-04, TW4-01, TW4-04, TW4-02, TW4-11, TW4-19, TW4-21, MW-26, TW4-22, TW4-24, TW4-25, TW4-37, TW4-39, TW 4-40, and TW 4-41 for the quarter. 2.0 CHLOROFORM MONITORING 2.1 Samples and Measurements Taken During the Quarter A map showing the location of all groundwater monitoring wells, piezometers, existing wells, temporary chloroform contaminant investigation wells and temporary nitrate investigation wells is attached under Tab A. Chloroform samples and measurements taken during this reporting period are discussed in the remainder of this section. 2.1.1 Chloroform Monitoring Quarterly sampling for chloroform monitoring parameters is currently required in the following wells: MW-4 TW4-9 TW4-18 TW4-28 TW4-37 TW4-1 TW4-10 TW4-19 TW4-29 TW4-38 TW4-2 TW4-11 TW4-21 TW4-30 TW4-39 TW4-3 TW4-12 TW4-22 TW4-31 TW4-40 TW4-4 TW4-13 TW4-23 TW4-32 TW4-41 TW4-5 TW4-14 TW4-24 TW4-33 TW4-42 TW4-6 MW-26 (formerly TW4-15) TW4-25 TW4-34 TW4-43 TW4-7 TW4-16 TW4-26 TW4-35 TW4-8 MW-32 (formerly TW4-17) TW4-27 TW4-36 1 Chloroform monitoring was performed in all of the required chloroform monitoring wells. Table 1 provides an overview of all wells sampled during the quarter, along with the date samples were collected from each well, and the date(s) when analytical data were received from the contract laboratory. Table 1 also identifies equipment rinsate samples collected, as well as sample numbers associated with the deionized field blank ("DIFB") and any required duplicates. 2.1.2 Parameters Analyzed Wells sampled during this reporting period were analyzed for the following constituents: • Chloroform • Chloromethane • Carbon tetrachloride • Methylene chloride • Chloride • Nitrate plus Nitrite as Nitrogen Use of analytical methods is consistent with the requirements of the Chloroform Investigation Monitoring Quality Assurance Program (the "Chloroform QAP") attached as Appendix A to the White Mesa Uranium Mill Groundwater Monitoring QAP Revision 7.7, dated February 15, 2022. 2.1.3 Groundwater Head Monitoring Depth to groundwater was measured in the following wells and/or piezometers, pursuant to Part I.E.3 of the Groundwater Discharge Permit (the "GWDP"): • The quarterly groundwater compliance monitoring wells • Existing monitoring well MW-4 and all of the temporary chloroform investigation wells • Piezometers P-1, P-2, P-3A, P-4 and P-5 • MW-20 and MW-22 • Nitrate monitoring wells • The DR piezometers that were installed during the Southwest Hydrologic Investigation In addition to the above, depth to water measurements are routinely observed in conjunction with sampling events for all wells sampled during quarterly and accelerated efforts, regardless of the sampling purpose. Weekly and monthly depth to groundwater measurements were taken in the chloroform pumping wells MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40, and TW4-41 and the nitrate pumping wells TW4-22, TW4-24, TW4-25, and TWN-02. In addition, monthly water level measurements were taken in non-pumping wells TW4-3 through TW4-10, TW4-12 through TW4-14, TW4-16, TW4-18, TW4-26 through TW4-36, TW4-38, TW4-42, TW4-43, MW-27, MW-30, MW-31, TWN-1, TWN-3, TWN-4, TWN-7, and TWN-18. 2 2.2 Sampling Methodology and Equipment and Decontamination Procedures EFRI completed, and transmitted to DWMRC on May 25, 2006, a revised QAP for sampling under the Mill's GWDP. While the water sampling conducted for chloroform investigation purposes has conformed to the general principles set out in the QAP, some of the requirements in the QAP were not fully implemented prior to DWMRC's approval of the QAP, for reasons set out in correspondence to DWMRC dated December 8, 2006. Subsequent to the delivery of the December 8, 2006 letter, EFRI discussed the issues brought forward in the letter with DWMRC and has received correspondence from DWMRC about those issues. In response to DWMRC's letter and subsequent discussions with DWMRC, EFRI modified the chloroform Quality Assurance ("QA") procedures within the Chloroform QAP. The Chloroform QAP describes the requirements of the chloroform investigation program and identifies where they differ from the Groundwater QAP. On June 20, 2009 the Chloroform QAP was modified to require that the quarterly chloroform reports include additional items specific to EFRI's ongoing pump testing and chloroform capture efforts. The Groundwater QAP as well as the Chloroform QAP were revised again on June 6, 2012, August 15, 2017, July 23, 2018, May 14, 2019, August 22, 2019, and February 15, 2022. The revised Groundwater QAP and Chloroform QAP, Revision 7.7 was approved by DWMRC on March 31, 2022. The sampling methodology, equipment and decontamination procedures used in the chloroform contaminant investigation, as summarized below, are consistent with the approved QAP and the Chloroform QAP. 2.2.1 Decontamination Procedures Non-dedicated sampling equipment is decontaminated prior to use as described in the DWMRC- approved QAP and as summarized below. The water level meter is decontaminated with a detergent/deionized ("DI") water mixture by pouring the solutions over the water level indicator. The water level meter is then rinsed with DI water. The field measurement instrument probe is decontaminated by rinsing with DI water prior to each calibration. The sample collection cup is washed with a detergent/DI water solution and rinsed with fresh DI water prior to each calibration. The non-dedicated purging pump is decontaminated after each use and prior to use at subsequent sampling locations using the following procedures: a) the pump is submerged into a 55-gallon drum of nonphosphate detergent/DI water mixture; b) the detergent/DI water solution is pumped through the pump and pump outlet lines; c) the pump is submerged into a 55-gallon drum of DI water; d) the DI water solution is pumped through the pump and pump outlet lines; 3 2.2.2 Well Purging and Depth to Groundwater The non-pumping wells are purged prior to sampling by means of a portable pump. A list of the wells in order of increasing chloroform concentration is generated quarterly. The order for purging the non-pumping wells is thus established. The list is included with the Field Data Worksheets under Tab B. Mill personnel start purging with all of the non-detect wells and then move to the wells with detectable chloroform concentrations starting with the lowest concentration and proceeding to the wells with the highest concentration. One deviation to this practice is made for the continuously pumping wells. These wells are sampled throughout the sampling event and are not sampled in the order of contamination. This practice does not affect the samples for this reason: the pumping wells have dedicated pumps and there will be no cross- contamination resulting from the sampling order. Samples are collected by means of disposable bailer(s) the day following the purging. The disposable bailer is used only for the collection of a sample from an individual well and disposed subsequent to the sampling. As noted in the approved QAP, sampling will generally follow the same order as purging; however; the sampling order may deviate slightly from the generated list. This practice does not affect the samples for these reasons: any wells sampled in slightly different order either have dedicated pumps or are sampled via a disposable bailer. This practice does not affect the quality or usability of the data as there will be no cross-contamination resulting from the sampling order. Before leaving the Mill office, the portable pump and hose are rinsed with DI water. Where portable (non-dedicated) sampling equipment is used, a rinsate sample is collected at a frequency of one rinsate sample per 20 field samples. Well depth measurements are taken and the one casing volume is calculated for those wells which do not have a dedicated pump as described in Attachment 2-3 of the QAP. Purging is completed to remove stagnant water from the casing and to assure that representative samples of formation water are collected for analysis. There are three purging strategies that are used to remove stagnant water from the casing during groundwater sampling at the Mill. The three strategies are as follows: 1. Purging three well casing volumes with a single measurement of field parameters specific conductivity, turbidity, pH, redox potential, Dissolved Oxygen ("DO") and water temperature 2. Purging two casing volumes with stable field parameters for specific conductivity, turbidity, pH, redox potential, DO, and water temperature (within 10% Relative Percent Difference ["RPD"]) 3. Purging a well to dryness and stability (within 10% RPD) of field parameters for pH, specific conductivity, and water temperature only after recovery If the well has a dedicated pump, it is pumped on a set schedule per the remediation plan and is considered sufficiently evacuated to immediately collect a sample; however, if a pumping well has been out of service for 48 hours or more, EFRI will follow the purging requirements outlined in Attachment 2-3 of the QAP. The dedicated pump is used to collect parameters and to collect the samples as described below. If the well does not have a dedicated pump, a Grundfos pump (9 -10 gpm pump) is then lowered to the screened interval in the well and purging is started. 4 The purge rate is measured for the well by using a calibrated 5 gallon bucket. This purging process is repeated at each well location moving from least contaminated to the most contaminated well. All wells are capped and secured prior to leaving the sampling location. Wells with dedicated pumps are sampled when the pump is in the pumping mode. If the pump is not pumping at the time of sampling, it is manually switched on by the Mill Personnel. The well is pumped for approximately 5 to 10 minutes prior to the collection of the field parameters. Per the approved QAP, one set of parameters is collected. Samples are collected following the measurement of one set of field parameters. After sampling, the pump is turned off and allowed to resume its timed schedule. 2.2.3 Sample Collection Prior to sampling, a cooler with ice is prepared. The trip blank is also gathered at that time (the trip blank for these events is provided by the analytical laboratory). Once Mill Personnel arrive at the well sites, labels are filled out for the various samples to be collected. All personnel involved with the collection of water and samples are then outfitted with disposable gloves. Chloroform investigation samples are collected by means of disposable hailers. Mill personnel use a disposable bailer to sample each well that does not have a dedicated pump. The bailer is attached to a reel of approximately 150 feet of nylon rope and then lowered into the well. After coming into contact with the water, the bailer is allowed to sink into the water in order to fill. Once full, the bailer is reeled up out of the well and the sample bottles are filled as follows: • Volatile Organic Compound ("VOC") samples are collected first. This sample consists of three 40 ml vials provided by the Analytical Laboratory. The VOC sample is not filtered and is preserved with HCl; • A sample for nitrate/nitrite is then collected. This sample consists of one 250 ml. bottle that is provided by the Analytical Laboratory. The nitrate/nitrite sample is not filtered and is preserved with H2SO4; • A sample for chloride is then collected. This sample consists of one 500 ml. bottle that is provided by the Analytical Laboratory. The chloride sample is not filtered and is not chemically preserved. After the samples have been collected for a particular well, the bailer is disposed of and the samples are placed into the cooler that contains ice. The well is then recapped and Mill personnel proceed to the next well. 2.3 Field Data Attached under Tab B are copies of the Field Data Worksheets that were completed during the quarter for the chloroform contaminant investigation monitoring wells identified in paragraph 2.1.1 above, and Table 1. 5 2.4 Depth to Groundwater Data and Water Table Contour Map Attached under Tab C are copies of the Depth to Water Sheets for the weekly monitoring of MW-4, MW-26, TW4-l, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-22, TW4-24, TW4- 25, TW4-37, TW4-39, TW4-40, TW4-41 and TWN-2 as well as the monthly depth to groundwater data for the chloroform contaminant investigation wells and the non-pumped wells measured during the quarter. Depth to groundwater measurements that were utilized for groundwater contours are included on the Quarterly Depth to Water Worksheet at Tab D of this report, along with the kriged groundwater contour map for the current quarter generated from this data. A copy of the kriged groundwater contour map generated from the previous quarter's data is provided under Tab E. 2.5 Laboratory Results 2.5.1 Copy of Laboratory Results All analytical results were provided by Chemtech-Ford Analytical Laboratory ("CTF"). Table 1 lists the dates when analytical results were reported to the Director, Regulatory Compliance for each sample. Results from the analyses of samples collected for this quarter's chloroform contaminant investigation are provided under Tab Hof this Report. Also included under Tab Hare the results of the analyses for duplicate samples, the DIFB, and rinsate samples for this sampling effort, as identified in Table 1, as well as results for trip blank analyses required by the Chloroform QAP. 2.5.2 Regulatory Framework As discussed in Section 1.0, above, the SCO triggered a series of actions on EFRI's part. In addition to the monitoring program, EFRI has equipped one nitrate well and fifteen chloroform wells with pumps to recover impacted groundwater and has initiated recovery of chloroform from the perched zone. Sections 4.0 and 5.0, below, interpret the groundwater level and flow information, contaminant analytical results, and pump test data to assess effectiveness of EFRI's chloroform capture program. 3.0 QUALITY ASSURANCE AND DATA VALIDATION The Director, Regulatory Compliance performed a QA/Quality Control ("QC") review to confirm compliance of the monitoring program with requirements of the QAP. As required in the QAP, data QA includes preparation and analysis of QC samples in the field, review of field procedures, an analyte completeness review, and QC review of laboratory methods and data. Identification of field QC samples collected and analyzed is provided in Section 3.1. Discussion of adherence to Mill sampling Standard Operating Procedures ("SOPs") is provided in Section 3.2. Analytical completeness review results are provided in Section 3.3. The steps and tests applied to check laboratory data QA/QC are discussed in Sections 3.4.4 through 3.4.9 below. 6 The analytical laboratory has provided summary reports of the analytical QA/QC measurements necessary to maintain conformance with National Environmental Laboratory Accreditation Conference ("NELAC") certification and reporting protocol. The Analytical Laboratory QA/QC Summary Reports, including copies of the Mill's Chain of Custody and Analytical Request Record forms for each set of Analytical Results, follow the analytical results under Tab H. Results of the review of the laboratory QA/QC information are provided under Tab I and are discussed in Section 3.4, below. 3.1 Field QC Samples The following QC samples were generated by Mill personnel and submitted to the analytical laboratory in order to assess the quality of data resulting from the field sampling program. Field QC samples for the chloroform investigation program consist of one field duplicate sample for each 20 samples, a trip blank for each shipped cooler that contains VOCs, one DIFB and rinsate samples. During this quarter, three duplicate samples were collected as indicated in Table 1. The duplicates were sent blind to the analytical laboratory and analyzed for the same parameters as the chloroform wells. Three trip blanks were provided by CTF and returned with the quarterly chloroform monitoring samples. Two rinsate blank samples were collected as indicated on Table 1. Rinsate samples were labeled with the name of the subsequently purged well with a terminal letter "R" added (e.g. TW4-7R). The results of these analyses are included with the routine analyses under Tab H. In addition, one DIFB, while not required by the Chloroform QAP, was collected and analyzed for the same constituents as the well samples and rinsate blank samples. 3.2 Adherence to Mill Sampling SOPs The Director, Regulatory Compliance's review of Mill Personnel's adherence to the existing SOPs, confirmed that the QA/QC requirements established in the QAP and Chloroform QAP were met. 3.3 Analyte Completeness Review All analyses required by the GCAP for chloroform monitoring for the period were performed. 3.4 Data Validation The QAP and GWDP identify the data validation steps and data QC checks required for the chloroform monitoring program. Consistent with these requirements, the Director, Regulatory Compliance performed the following evaluations: a field data QA/QC evaluation, a holding time 7 check, a receipt temperature check, an analytical method check, a reporting limit evaluation, a trip blank check, a QA/QC evaluation of sample duplicates, a QC Control Limit check for analyses and blanks including the DIFB and a rinsate sample check. Each evaluation is discussed in the following sections. Data check tables indicating the results of each test are provided under Tab I. 3.4.1 Field Data QA/QC Evaluation The Director, Regulatory Compliance performs a review of the field recorded parameters to assess their adherence with QAP requirements. The assessment involved review of two sources of information: the Field Data Sheets and the Quarterly Depth to Water summary sheet. Review of the Field Data Sheets addresses well purging volumes and measurement of field parameters based on the requirements discussed in section 2.2.1 above. The purging technique employed determines the requirements for field parameter measurement and whether stability criteria are applied. Review of the Depth to Water data confirms that all depth measurements used for development of the groundwater contour maps were conducted within a five-day period as indicated by the measurement dates in the summary sheet under Tab D. The results of this quarter's review of field data are provided under Tab I. Based upon the review of the field data sheets, the purging and field measurements were completed in conformance with the QAP requirements. A summary of the purging techniques employed and field measurements taken is described below: Purging Two Casing Volumes with Stable Field Parameters (within 10% RPD) Wells TW4-5, TW4-8, TW4-9, TW4-16, MW-32, TW4-18, TW4-23, TW4-32, and TW4-38 were sampled after two casing volumes were removed. Field parameters (pH, specific conductivity, turbidity, water temperature, DO, and redox potential) were measured during purging. All field parameters for this requirement were stable within 10% RPD. Purging a Well to Dryness and Stability of a Limited List of Field Parameters Wells TW4-3, TW4-6, TW4-7, TW4-10, TW4-12, TW4-13, TW4-14, TW4-26, TW4-27, TW4- 28, TW4-29, TW4-30, TW4-31, TW4-33, TW4-34, TW4-35, TW4-36, TW4-42, and TW4-43 were pumped to dryness before two casing volumes were evacuated. After well recovery, one set of measurements of pH, conductivity and temperature were taken. The samples were then collected, and another set of measurements of pH, conductivity and temperature were taken. Stabilization of pH, conductivity and temperature are required within 10% RPD under the QAP. The QAP requirements for stabilization were met. Continuously Pumped Wells Wells MW-4, TW4-1, TW4-2, TW4-4, TW4-11, MW-26, TW4-19, TW4-21, TW4-22, TW4-24, TW4-25, TW4-37, TW4-39, TW4-40, and TW4-41 are continuously pumped wells. These wells are pumped on a set schedule per the remediation plan and are considered sufficiently evacuated to immediately collect a sample. During review of the field data sheets, the Director, Regulatory Compliance confirmed that sampling personnel consistently recorded depth to water to the nearest 0.01 foot. 8 The review of the field sheets for compliance with QAP requirements resulted in the observations noted below. The QAP requirements in Attachment 2-3 specifically state that field parameters must be stabilized to within 10% over at least 2 consecutive measurements for wells purged to 2 casing volumes or purged to dryness. The QAP Attachment 2-3 states that turbidity should be less than 5 NTU prior to sampling unless the well is characterized by water that has a higher turbidity. The QAP Attachment 2-3 does not require that turbidity measurements be less than 5 NTU prior to sampling. As such, the noted observations below regarding turbidity measurements greater than 5 NTU are included for information purposes only. Wells TW4-9, TW4-16, MW-32, TW4-18,, TW4-25, TW4-32, TW4-37, TW4-38, and TW4-39 exceeded the QAP's 5 NTU goal. EFRI's letter to DWMRC of March 26, 2010 discusses further why turbidity does not appear to be an appropriate parameter for assessing well stabilization. In response to DWMRC's subsequent correspondence dated June 1, 2010 and June 24, 2010, EFRI completed a monitoring well redevelopment program. The redevelopment report was submitted to DWMRC on September 30, 2011. DWMRC responded to the redevelopment report via letter on November 15, 2012. Per the DWMRC letter dated November 15, 2012, the field data generated this quarter are compliant with the turbidity requirements of the approved QAP. 3.4.2 Holding Time Evaluation QAP Table 1 identifies the method holding times for each suite of parameters. Sample holding time checks are provided in Tab I. The samples were received and analyzed within the required holding times. 3.4.3 Receipt Temperature Evaluation Chain of Custody sheets were reviewed to confirm compliance with the QAP requirement which specifies that samples be received at 6°C or lower. Sample temperatures checks are provided in Tab I. The samples were received within the required temperature limit. 3.4.4 Analytical Method Checklist The analytical methods reported by the laboratory were checked against the required methods enumerated in the Chloroform QAP. Analytical method checks are provided in Tab I. The analytical methods were consistent with the requirements of the Chloroform QAP. 3.4.5 Reporting Limit Evaluation The analytical method reporting limits reported by the laboratory were checked against the reporting limits enumerated in the Chloroform QAP. Reporting Limit Checks are provided under Tab I. The analytes were measured and reported to the required reporting limits; several sets of sample results had the reporting limit raised for at least one analyte due to matrix interference and/or sample dilution. In these cases, the reported value for the analyte was higher than the increased detection limit. 9 3.4.6 Receipt pH Evaluation Appendix A of the QAP states that volatile samples are required to be preserved and arrive at the laboratory with a pH less than 2. A review of the laboratory data revealed that volatile samples were received at the laboratory with a pH less than 2. 3.4. 7 Trip Blank Evaluation Trip blank results were reviewed to identify any VOC contamination resulting from transport of the samples. Trip blank checks are provided in Tab I. All of the trip blank samples were nondetect. 3.4.8 QA/QC Evaluation for Sample Duplicates Section 9.1.4 a) of the QAP states that RPDs will be calculated for the comparison of duplicate and original field samples. The QAP acceptance limits for RPDs between the duplicate and original field sample is less than or equal to 20% unless the measured results are less than 5 times the required detection limit. This standard is based on the EPA Contract Laboratory Program National Functional Guidelines for Inorganic Data Review, February 1994, 9240.1-05- 01 as cited in the QAP. The RPDs are calculated for the duplicate pairs for all analytes regardless of whether or not the reported concentrations are greater than 5 times the required detection limits; however, data are considered noncompliant only when the results are greater than 5 times the reported detection limit and the RPD is greater than 20%. The additional duplicate information is provided for information purposes. The duplicate results were less than or equal to the 20% RPD criteria in the samples. Duplicate results are included in Tab I. 3.4.9 Rinsate Sample Check Rinsate blank sample checks are provided in Tab I. The rinsate blank sample concentration levels were compared to the QAP requirements i.e., that rinsate sample concentrations be one order of magnitude lower than that of the actual well. Rinsate blank sample TW430R had a reported chloroform detection of 6.8 ug/L for chloroform. TW4-30 had a chloroform detection of 47.8 ug/L. The rinsate blank results for TW4-30R were within acceptance limits for the rinsate blank results. TW4-36R was collected after decontamination and prior to the pump being used to collect any Q3 2023 chloroform samples. Because the pump was not used prior to the rinsate sample collection, the detection is not the result of cross contamination. The rinsate samples with positive detections are likely the result of contributions from the DI system and not the result of cross contamination as indicated by the positive result in TW4-36R. The DI blank from the on-site DI system which generates the water for rinsate blank samples was nondetect for chloroform. EFRI is continuing the investigation of the chloroform in the rinsate samples. The results of this investigation will be provided in future reports. EFRI is contacting the media and filter provider again and looking at plumbing systems to determine if the chloroform is originating within the physical system. The data for all samples are usable as reported. Even if there were contribution of chloroform to the sample results, it would bias the data high and would result in a more conservative data application. EFRI does not believe the data quality has been affected. 3.4.10 Other Laboratory QA/QC Section 9.2 of the QAP requires that the laboratory's QA/QC Manager check the following items in developing data reports: (1) sample preparation information is correct and complete, (2) analysis information is correct and complete, (3) appropriate analytical laboratory procedures are followed, ( 4) analytical results are correct and complete, (5) QC samples are within established control limits, ( 6) blanks are within QC limits, (7) special sample preparation and analytical requirements have been met, and (8) documentation is complete. In addition to other laboratory checks described above, EFRI's Director, Regulatory Compliance rechecks QC samples and blanks (items (5) and (6)) to confirm that the percent recovery for spikes and the relative percent difference for spike duplicates are within the method-specified acceptance limits, or that the case narrative sufficiently explains any deviation from these limits. Results of this quantitative check are provided in Tab I. The lab QA/QC results met these specified acceptance limits except as noted below. The QAP, Section 8.1.2 states that an MS/MSD pair may be analyzed with each analytical batch depending on the analytical method specifications. The QAP does not specify acceptance limits for the MS/MSD pair, and the QAP does not specify that the MS/MSD pair be prepared on EFRI samples only. Acceptance limits for MS/MSDs are set by the laboratories. The revie~ of the information provided by the laboratories in the data packages verified that the specifications in the analytical methods to analyze either an MS or MS/MSD pair with each analytical batch were met as applicable to each method. While the QAP does not require it, the recoveries were reviewed for compliance with the laboratory established acceptance limits. The QAP does not require this level of review and the results of this review are provided for information only. The information from the Laboratory QA/QC Summary Reports indicates that the MS/MSDs recoveries and the associated RPDs for the samples were within acceptable laboratory limits except as indicated in Tab I. The data recoveries and RPDs which are outside the laboratory established acceptance limits do not affect the quality or usability of the data because the recoveries and RPDs above or below the acceptance limits are indicative of matrix interference most likely caused by other constituents in the samples. Matrix interferences are applicable to the individual sample results only. The specifications in the analytical methods to analyze a MS/MSD pair with each analytical batch (as applicable to the methods) was met and as such the data are compliant with the QAP. The QAP specifies that surrogate compounds shall be employed for all organic analyses, but the QAP does not specify acceptance limits for surrogate recoveries. The analytical data associated with the routine quarterly sampling met the requirement specified in the QAP. The information 11 from the Laboratory QA/QC Summary Reports indicates that the surrogate recoveries for the quarterly chloroform samples were within acceptable laboratory limits for the surrogate compounds as noted in Tab I. The requirement in the QAP to analyze surrogate compounds was met and the data are compliant with the QAP. Furthermore, there are no QAP requirements for surrogate recoveries. The QAP, Section 8.1.2 requires that each analytical batch shall be accompanied by a method blank. The analytical batches routinely contain a blank, which is a blank sample made and carried through all analytical steps. For the Mill samples, a method blank was prepared for the analytical methods. Per the approved QAP, contamination detected in analysis of method blanks will be used to evaluate any analytical laboratory contamination of environmental samples. The QAP states that non-conformance conditions will exist when contaminant levels in the samples(s) are not an order of magnitude greater than the blank result. There were no detections in the method blanks in this quarter. Method blank results are included in Tab I. The information from the Laboratory QA/QC Summary Reports indicates that there was a low LCS recovery in one of the analytical batches as indicated in Tab I. A low LCS recovery for chloromethane was reported in analytical report 2312285. The low LCS affected seven samples. The data were flagged in accordance with EPA Method 8260. The data are usable for the intended purpose because chloromethane is not frequently detected. 4.0 INTERPRETATION OF DATA 4.1 Interpretation of Groundwater Levels, Gradients and Flow Directions. 4.1.1 Current Site Groundwater Contour Map The water level contour maps (See Tab D) indicate that perched water flow ranges from generally southwesterly beneath the Mill site and tailings cells to generally southerly along the eastern and western margins of White Mesa south of the tailings management system. Perched water mounding associated with the wildlife ponds locally changes the generally southerly perched water flow patterns. For example, northeast of the Mill site, mounding associated with formerly used wildlife ponds is still evident and disrupts the generally southwesterly flow pattern, to the extent that locally northwesterly flow occurs near MW-19 and PIEZ-1. The impact of the mounding associated with the northern ponds, to which water has not been delivered since March 2012, is diminishing and is expected to continue to diminish as the associated mound decays due to reduced recharge. The perched groundwater mound associated with the southern wildlife pond is also diminishing due to reduced recharge at that location. Not only has recharge from the wildlife ponds impacted perched water elevations and flow directions at the site, but the cessation of water delivery to the northern ponds, which are generally upgradient of the nitrate and chloroform plumes at the site, resulted in changing conditions that were expected to impact constituent concentrations and migration rates within the plumes. Specifically, past recharge from the northern ponds helped limit many constituent concentrations within the plumes by dilution while the associated groundwater mounding 12 increased hydraulic gradients and contributed to plume migration. Since use of the northern ponds was discontinued in March 2012, increases in constituent concentrations in many wells, and decreases in hydraulic gradients within the plumes, are attributable to reduced recharge and the decay of the associated groundwater mound. EFRI and its consultants anticipated these changes and discussed these and other potential effects with DWMRC in March 2012 and May 2013. The impacts associated with cessation of water delivery to the northern ponds were expected to propagate downgradient (south and southwest) over time. Wells close to the ponds were generally expected to be impacted sooner than wells farther downgradient of the ponds. Therefore, constituent concentrations were generally expected to increase in downgradient wells close to the ponds before increases were detected in wells farther downgradient of the ponds. Although such increases were anticipated to result from reduced dilution, the magnitude and timing of the increases were anticipated to be, and have been, difficult to predict due to the complex permeability distribution at the site and factors such as pumping and the rate of decay of the groundwater mound. Because of these complicating factors, some wells completed in higher permeability materials were expected to be impacted sooner than other wells completed in lower permeability materials even though the wells completed in lower permeability materials were closer to the ponds. In general, chloroform and nitrate concentrations within and in the vicinity of the chloroform plume appear to have been impacted to a greater extent than nitrate concentrations within and adjacent to the nitrate plume. This behavior is reasonable considering that the chloroform plume is generally more directly downgradient of and more hydraulically connected (via higher permeability materials) to the northern wildlife ponds. In addition, the southern wildlife pond is in relatively close proximity to the downgradient (southern) extremity of the chloroform plume. Reduced recharge at the southern pond, and decay of the associated groundwater mound, has been expected to impact water level behavior and chloroform and nitrate concentrations in wells within this portion of the chloroform plume. Localized increases in concentrations of constituents such as chloroform and nitrate within and near the chloroform plume, and of nitrate and chloride within and near the nitrate plume, may occur even when these plumes are under control. Ongoing mechanisms that can be expected to increase constituent concentrations locally as a result of reduced wildlife pond recharge include but are not limited to: 1) Reduced dilution -the m1xmg of low constituent concentration pond recharge into existing perched groundwater will be reduced over time. 2) Reduced saturated thicknesses -dewatering of higher permeability layers rece1vmg primarily low constituent concentration pond water will result in wells intercepting these layers receiving a smaller proportion of the low constituent concentration water. The combined impact of the above two mechanisms was anticipated to be more evident at chloroform pumping wells MW-4, MW-26, TW4-4, TW4-19, and TW4-20 (now abandoned); nitrate pumping wells TW4-22, TW4-24, TW4-25, and TWN-2; and non-pumped wells adjacent 13 to the pumped wells. Impacts were also expected to occur over time at wells subsequently added to the chloroform pumping network: TW4-1, TW4-2, TW4-11, TW4-21 and TW4-37 (added during 2015); TW4-39 (added during the fourth quarter of 2016); TW4-41 (added during the second quarter of 2018); and TW 4-40 ( 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) historical relatively low water levels at adjacent well TW4-14. Nitrate pumping wells TW4-22, TW4-24, TW4-25, and TWN-2 started pumping during the first quarter of 2013. By the fourth quarter of 2013, operation of the nitrate pumping system had produced well-defined impacts on water levels. Water level impacts of the nitrate and chloroform pumping systems overlap; however the long-term interaction between the nitrate and chloroform pumping systems is evolving, and changes will be reflected in data collected during routine monitoring. Water level patterns near nitrate pumping wells are expected to be influenced by the presence of, and the decay of, the groundwater mound associated with the northern wildlife ponds, and by the historically relatively low water level at TWN-7. Since 2012, water levels in TWN-7 have risen while water levels in nearby wells have generally dropped due to pumping and the decay of the northern groundwater mound. These factors have reduced water level differences between TWN- 7 and nearby wells. As discussed above, variable permeability conditions likely contributed to the lack of a well- defined cone of depression near chloroform pumping well TW4-4. Changes in water levels at wells immediately south and southeast (downgradient) of TW4-4 resulting from TW4-4 pumping were expected to be muted because TW 4-4 is located at a transition from relatively high to relatively low permeability conditions south and southeast of TW4-4. As will be discussed below, the permeability of the perched zone at TW4-6, TW4-26, TW4-29, TW4-30, TW4-31, TW4-33, TW4-34, and TW4-35 is one to two orders of magnitude lower than at TW4-4, and the permeability at TW4-27 is approximately three orders of magnitude lower than at TW4-4. 14 Detecting water level drawdowns in wells immediately south and southeast of TW 4-4 resulting from TW4-4 pumping has also been complicated by a former, long-term increase in water levels in this area that has been attributable to past wildlife pond recharge. Between the fourth quarter of 2007 and the fourth quarter of 2009 (just prior to the start of TW 4-4 pumping), water levels at TW4-4 and TW4-6 increased by nearly 2.7 and 2.9 feet at rates of approximately 1.2 feet/year and 1.3 feet/year, respectively. However, between the start of pumping at TW4-4 (first quarter of 2010) and the fourth quarter of 2013, the rate of increase in water levels at TW4-6 was reduced to less than 0.5 feet/year suggesting that TW4-6 is within the hydraulic influence of TW4-4. Water levels in wells currently within the chloroform plume south of TW4-4 (TW4-26, TW4-29 and TW4-40) are generally decreasing to stable. Note that water levels at TW4-30, which was incorporated within the plume from the fourth quarter of 2020 through the second quarter of 2022, have been generally decreasing since 2020. Generally decreasing to stable water levels are evident at TW4-26 and TW4-29 since the fourth quarter of 2013; and at TW4-40 since installation in the first quarter of 2018. The water level in TW4-6 (remaining outside the plume again this quarter) has also trended generally downward since the fourth quarter of 2013; likewise the water level at TW4-33 (outside the plume since the first quarter of2021) has trended downward since 2013. These generally downward trends are attributable to both the cessation of water delivery to the wildlife ponds and pumping. Although water levels at some of the wells marginal to the chloroform plume such as TW4-14, TW4-27 and TW4-31 were generally increasing until about the first quarter of 2018, these water levels now appear to be relatively stable to decreasing. Water level trends at TW4-30 have been similar to those at TW4-27. These spatially variable water level trends likely result from pumping conditions, the permeability distribution, and distance from the wildlife ponds. Wells that are relatively hydraulically isolated ( due to completion in lower permeability materials or due to intervening lower permeability materials) and that are more distant from pumping wells and the wildlife ponds, are expected to respond more slowly to pumping and reduced recharge than wells that are less hydraulically isolated and are closer to pumping wells and the wildlife ponds. Wells that are more hydraulically isolated will also respond more slowly to changes in pumping. The previous lack of a well-defined cone of depression associated with TW4-4 was also influenced by the historically relatively low water level at non-pumping well TW 4-14, located east of TW4-4 and TW4-6. Prior to 2018, although water level differences among these three wells had diminished, and TW4-4 has been pumping since 2010, the water level at TW4-14 was typically lower than the water level at TW 4-6 and lower to an even greater extent than the water level at TW4-4. However, since the first quarter of 2018, as a result of pumping at TW4-41 (adjacent to TW4-4), and declining water levels at TW4-6, the water level at TW4-14 was typically higher than the water levels at both TW 4-4 and TW 4-6. During the current quarter the water level at TW4-14 (approximately 5535.4 feet above mean sea level ["ft amsl"]) is more than 7 feet higher than the water level at TW4-6 (approximately 5528.2 ft amsl), and is more than 10 feet higher than the water level at TW4-4 (approximately 5525.3 ft. amsl). The static water levels at wells TW4-14 and downgradient well TW4-27 (installed south of TW4-14 in the fourth quarter of 2011) were similar (within 1 to 2 feet) until the third quarter of 2014; both appeared anomalously low. TW4-27 was positioned at a location considered likely to detect any chloroform present and/or to bound the chloroform plume to the southeast and east 15 (respectively) of TW4-4 and TW4-6. As will be discussed below, groundwater data collected since installation indicates that TW4-27 does indeed bound the chloroform plume to the southeast and east of TW4-4 and TW4-6 (respectively); however, chloroform exceeding 70 µg/L has been detected at more recently installed temporary perched wells TW4-29 (located south of TW4-27) and TW4-33 (located between TW4-4 and TW4-29). Prior to the installation of TW4-27, the persistently low water level at TW4-14 was considered anomalous because it appeared to be downgradient of all three wells TW4-4, TW4-6, and TW4- 26, yet chloroform had not been detected at TW4-14. Chloroform had apparently migrated from TW4-4 to TW4-6 and from TW4-6 to TW4-26. This suggested that TW4-26 was actually downgradient of TW4-6, and TW4-6 was actually downgradient of TW4-4, regardless of the flow direction implied by the relatively low water level at TW4-14. The water level at TW4-26 (5525.9 feet amsl) is, however, lower than water levels at adjacent wells TW4-6 (5528.2 feet amsl) and TW4-23 (5530.2 feet amsl), as shown in the detail water level map under Tab D. Hydraulic tests indicate that the permeability at TW4-27 is an order of magnitude lower than at TW4-6 and three orders of magnitude lower than at TW4-4 (see Hydro Geo Chem, Inc. [HGC], September 20, 2010: Hydraulic Testing of TW4-4, TW4-6, and TW4-26, White Mesa Uranium Mill, July 2010; and HGC, November 28, 2011: Installation, Hydraulic Testing, and Perched Zone Hydrogeology of Perched Monitoring Well TW4-27, White Mesa Uranium Mill Near Blanding, Utah). Past similarity of water levels at TW4-14 and TW4-27, and the low permeability estimate at TW4-27, suggested that both wells were completed in materials having lower permeability than nearby wells. The low permeability condition likely reduced the rate of long-term water level increase at TW4-14 and TW4-27 compared to nearby wells, yielding water levels that appeared anomalously low. This behavior is consistent with hydraulic test data collected from more recently installed wells TW4-29, TW4-30, TW4-31, TW4-33, TW4-34 and TW4-35, which indicate that the permeability of these wells is one to two orders of magnitude higher than the permeability of TW4-27 (see: HGC, January 23, 2014, Contamination Investigation Report, TW4-12 and TW4-27 Areas, White Mesa Uranium Mill Near Blanding, Utah; and HGC, July 1, 2014, Installation and Hydraulic Testing of TW4-35 and TW4-36, White Mesa Uranium Mill Near Blanding, Utah [As-Built Report]). Hydraulic tests also indicate that the permeability at TW4-36 is slightly higher than but comparable to the low permeability at TW4-27, suggesting that TW4-36, TW4-14 and TW4-27 are completed in a continuous low permeability zone. The current quarterly water level at TW4-27 (5528.6 ft. amsl) is nearly 7 feet lower than the water level at TW4-14 (5535.4 ft. amsl). Increases in water level differences between TW4-14 and TW4-27 since 2013 are attributable to more rapid increases in water levels at TW4-14 compared to TW4-27. This behavior likely results primarily from: the relative positions of the wells; past water delivery to the northern wildlife ponds; and the permeability distribution. Past seepage from the ponds caused propagation of water level increases in all directions including downgradient to the south. The relative hydraulic isolation of TW4-14 and TW4-27 delayed responses at these locations. Until pumping started at TW 4-41, water levels at both these wells were consistently lower than in surrounding higher permeability materials even though water levels in surrounding materials were generally decreasing due to reduced pond seepage and pumping. Although water levels at TW4-14 and TW4-27 appear to have stabilized, the previous 16 rate of increase was higher at TW 4-14 due to factors that include: closer proximity to the northern pond seepage source; and a smaller thickness of low permeability materials separating TW 4-14 from surrounding higher permeability materials. In addition, hydraulic gradients between TW 4-14 and surrounding higher permeability materials were relatively large and were consistently directed toward TW 4-14 prior to TW 4-41 pumping. Slowing of the rates of water level increase at TW4-14 (since 2015) and TW4-27 (since early 2014), and relative stabilization since about the first quarter of 2018, are attributable to changes in hydraulic gradients between these wells and surrounding higher permeability materials. In addition, water levels in this area are affected by reduced recharge at the southern wildlife pond and the decay of the associated groundwater mound. The decay of the mound is expected to contribute to changes in hydraulic gradients between the low permeability materials penetrated by TW4-14 and TW4-27 and the surrounding higher permeability materials. Because TW4-27 is closer to the southern wildlife pond than TW4-14, changes in hydraulic gradients attributable to decay of the southern groundwater mound are expected to impact TW4-27 sooner and to a greater extent than TW4-14, consistent with the lower rate of increase in water levels at TW4-27, and the earlier reduction in the rate of increase (since early 2014) as discussed above). The low permeability at TW4-14 and TW4-27 is expected to retard the transport of chloroform to these wells (compared to nearby wells). As will be discussed in Section 4.2.3, TW4-14 and TW4-27 remain outside the plume with current quarter chloroform concentrations of less than 1 µg/L and 2.9 µg/L, respectively. Chloroform exceeding 70 µg/L detected at TW4-29 and TW4-33 since their installation in 2013 indicates that, in addition to migrating south from TW4-4 to TW4-6 and TW4-26, chloroform also migrated along a relatively narrow path to the southeast from the vicinity of TW 4-4 to TW 4- 33 then TW4-29. Such migration was in a direction nearly cross-gradient with respect to the direction of groundwater flow implied by the historic groundwater elevations in this area, which, until about 2014, placed TW 4-14 almost directly downgradient of TW 4-4. Such migration was historically possible because the water levels at TW4-29 were lower than the water levels at TW4-4 (and TW4-6). The permeability and historic water level distributions are generally consistent with the apparent nearly cross-gradient migration of chloroform from TW 4-4 around the low permeability zone defined by TW4-36, TW4-14, and TW4-27. (Note that, although concentrations at TW4-29 still exceed 70 µg/L, concentrations at TW4-33 have remained below 70 µg/L since the end of 2020.) Chloroform at TW4-30 exceeded 70 µg/L for the first time during the fourth quarter of 2020; dropped below 70 µg/L during the third quarter of 2022; and was detected at nearly 48 µg/L this quarter. Consequently, TW4-30 again bounds the plume immediately to the east. Chloroform was not detected at relatively recently installed bounding well TW4-43 (located east-southeast of TW4-30); nor at wells TW4-31 (located east of TW4-27), or TW4-34 (located south and generally cross-to downgradient of TW4-29). During the third quarter of 2022 chloroform was detected for the first time at TW4-34 at a concentration of 1.2 µg/L; and was again detected at 1.2 µg/L last quarter. Chloroform at TW4-35 (located southeast and generally cross-to downgradient of TW4-29) was detected for the first time this quarter (at 1.4 µg/L). 17 Data from wells within and adjacent to the southern portion of the chloroform plume indicate that: 1. Chloroform exceeding 70 µg/L at TW 4-29 is bounded by concentrations below 70 µg/L at wells TW4-6, TW4-23, TW4-27, TW4-33, TW4-34, TW4-35 and TW4-42; and, as discussed above, TW4-30 (with a concentration this quarter of approximately 48 µg/L) again bounds the plume immediately to the east. Although previously downgradient of TW4-29, due to long-term changes in water levels, TW4-30 is now generally cross- gradient of TW4-29. TW4-6, TW4-23, TW4-27 and TW4-33 are generally cross-to upgradient of TW4-29; TW4-34 and TW4-35 are generally cross-to downgradient of TW4-29; TW4-42 is generally cross-to downgradient of TW4-29; and TW4-43 is generally cross-to downgradient of TW4-30. 2. Chloroform concentrations at TW4-33 that are lower than concentrations at TW4-29, and the likelihood that a pathway exists from TW4-4 to TW4-33 to TW4-29, suggest that concentrations in the vicinity of TW4-33 were likely higher prior to initiation of TW4-4 pumping, and that lower concentrations historically detected at TW4-33 are due to its closer proximity to TW4-4. 3. Chloroform concentrations at TW4-26 exceeded 70 µg/L for the first time during the second quarter of 2017. Chloroform at TW4-26 is bounded by concentrations below 70 µg/L at TW4-6 and TW4-23 (located up-to cross-gradient of TW4-26); and at TW4-34 (located generally cross-gradient of TW4-26). Chloroform has not been detected at TW4-23; and, although historically non-detect, chloroform was first detected at TW4-34 during the third quarter of 2022. Since that first detection, chloroform has been detected twice, including during the previous quarter ( at a concentration of 1.2 µg/L ). Although chloroform exceeding 70 µg/L was detected at well TW 4-40, installed approximately 200 feet south of TW4-26 in February, 2018, chloroform has not been detected at TW4-42, installed approximately 200 feet south of TW4-40 in April, 2019. TW4-42 is generally down to cross-gradient of TW4-26 and downgradient of TW4-40 and bounds the chloroform plume to the south. TW4-4 pumping, enhanced by operation of adjacent pumping well TW4-41, has been expected to eventually reduce chloroform at both TW4-29 and TW4-33 by cutting off the source. The decrease at TW4-33 has been anticipated to be faster than at TW4-29 because TW4-33 is in closer proximity to TW 4-4 pumping. Such behavior would be analogous to the temporary decreases in chloroform concentrations that occurred at TW4-6 and TW4-26 once TW4-4 pumping began (discussed in Section 4.2.3). Since installation in 2013, concentrations at TW4- 33 have been relatively stable to decreasing (and have generally been decreasing since 2018); however, from the third quarter of 2014 until the second quarter of 2020, concentrations at TW4- 29 generally increased before subsequently stabilizing and decreasing. This behavior suggests that chloroform migration has been arrested at TW 4-3 3 by TW 4-4 ( and TW4-41) pumping and that previously increasing chloroform at TW4-29 resulted from a remnant of the plume that migrated past TW4-33 and generally toward TW4-30 (which was previously downgradient of TW4-29). The influence of TW4-4 pumping at the distal end of the plume is consistent with generally decreasing water levels at both TW4-29 and TW4-33. Pumping at 18 TW 4-41 since the second quarter of 2018 has been expected to help maintain or enhance this decline. Decreasing water level trends at TW4-29 and TW4-33 are also consistent with reduced wildlife pond seepage. The decay of the groundwater mound associated with the southern wildlife pond, which is 3 to 4 times closer to the southern extremity of the chloroform plume than the northern ponds, is expected to impact water levels within and adjacent to this portion of the plume. Reduced wildlife pond seepage, in particular, reduced seepage from the southern wildlife pond, likely contributes to decreasing water level trends at both wells (since about the fourth quarter of 2013); temporarily increased concentrations at TW4-6 subsequent to the first quarter of 2014; and increased concentrations at TW4-26 since the third quarter of 2016. As the groundwater mound associated with the southern pond decays, groundwater flow directions in the southern extremity of the plume have become more southerly, and plume migration has turned more to the south. An increasingly southerly direction of plume migration is consistent with water level changes in this area and increased concentrations at TW4-26. In addition, generally decreasing concentrations at TW4-6 since the third quarter of 2015, and generally increased concentrations at TW 4-26 since the third quarter of 2016, suggest that TW 4- 4 pumping has arrested chloroform migration between TW 4-4 and TW 4-6, and that increased chloroform at TW4-26 results from a remnant of the plume that continues to migrate south from TW4-6 to TW4-26. The enhancement of pumping in the vicinity of TW4-4 by the start-up of TW 4-41 pumping in the second quarter of 2018 has been expected to increase this apparent separation and to have resulted in concentrations at TW 4-6 dropping below 70 µg/L after the second quarter of 2018. Furthermore, the initiation of pumping at TW4-40 during the second quarter of2019 is expected to reduce or prevent chloroform migration to the south ofTW4-40. Small but detectable chloroform concentrations at TW4-14 (from the fourth quarter of 2014 through the first quarter of 2021; and during the third quarter of 2022) and at TW4-27 (since the third quarter of 2015) suggest ongoing, but slow, downgradient migration of chloroform from the southeastern extremity of the plume (near TW4-29 and TW4-33) into the low permeability materials penetrated by TW4-14 and TW4-27. Pumping at TW4-41 is expected to reduce or prevent future migration of chloroform toward these wells. 4.1.2 Comparison of Current Groundwater Contour Maps to Groundwater Contour Maps for Previous Quarter The groundwater contour map for the Mill site for the second quarter of 2023, as submitted with the Chloroform Monitoring Report for the second quarter of 2023, is attached under Tab E. A comparison of the water table contour maps for the current quarter (third quarter of 2023) to the water table contour maps for the previous quarter (second quarter of 2023) indicates the following: water level changes at the majority of site wells were small ( < 1 foot); and water level contours have not changed significantly except in the vicinities of many of the nitrate and chloroform pumping wells. Overall, total pumping capture is smaller than last quarter. Drawdown patterns and overall capture associated with pumping of the original chloroform pumping wells MW-4, MW-26, and TW4-19 have changed as additional groups of wells have 19 been added to the pumping network. A large expansion in capture occurred within a year of the initiation of pumping at nitrate pumping wells TW4-22, TW4-24, TW4-25 and TWN-2 in the first quarter of 2013. Additional large expansions occurred once chloroform pumping wells TW4-1, TW4-2, TW4-11, TW4-21 and TW4-37 became operational in 2015, and once TW4-39 became operational in the fourth quarter of 2016. Significant expansion of capture to the south has resulted from pumping of TW 4-41 since the second quarter of 2018 and from initiation of pumping at TW4-40 during the second quarter of 2019. The drawdowns at chloroform pumping wells TW 4-4 and TW 4-19 increased by more than 2 feet this quarter, whereas drawdowns at chloroform pumping wells MW-4, MW-26, TW4-1, TW4-2, TW4-21 and TW4-39; and at nitrate pumping well TW4-25; decreased by more than 2 feet this quarter. Water level changes at other nitrate and chloroform pumping wells were 2 feet or less, although both increases (decreases in drawdown) and decreases (increases in drawdown) occurred. Water level fluctuations at pumping wells typically occur in part because of fluctuations in pumping conditions just prior to and at the time the measurements are taken. The reported water 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 smaller than last quarter. As discussed in Section 4.1.1, pumping at chloroform well TW4-4, which began in the first quarter of 2010, depressed the water table near TW4-4, but a well-defined cone of depression was not clearly evident until the third quarter of 2018, likely due to variable permeability conditions near TW4-4 and the historically relatively low water level at adjacent well TW4-14. The expanded cone of depression associated with TW4-4 and adjacent pumping well TW4-41 since the initiation of pumping at TW 4-41 in the second quarter of 2018 has contributed to southerly expansion of total pumping system capture. As discussed above, southerly expansion of capture was additionally enhanced in the second quarter of 2019 by the initiation of pumping at TW4-40. The water levels at Piezometers 1 through 5; and at TWN-1 and TWN-4 all decreased this quarter, with a maximum decrease of more than 3 ft feet at PIEZ-3A. Water levels at these installations typically decrease in response to cessation of water delivery to the wildlife ponds as discussed in Section 4.1.1 and the consequent continuing decay of the associated perched water mounds. Typically variable, the reported water level at MW-20 increased by nearly 3.3 ft this quarter, after remaining about the same last quarter (compared to the first quarter of 2023). Water level variability at this well has likely resulted from low permeability and variable intervals between purging/sampling and water level measurement. Measurable water was not reported at DR-22. Although DR-22 is typically dry, measurable water was reported in the bottom of its casing between the second quarter of 2015 and the third quarter of 2016. Similar to last quarter, measurable water was also not reported at DR-12. Measurable water has not been reported at DR-12 since the end of 2021. 20 4.1.3 Hydrographs Attached under Tab F are hydrographs showing groundwater elevation in each chloroform contaminant investigation monitor well over time. 4.1.4 Depth to Groundwater Measured and Groundwater Elevation Attached under Tab F are tables showing depth to groundwater measured and groundwater elevation over time for each of the wells listed in Section 2.1.1 above. 4.1.5 Evaluation of the Effectiveness of Hydraulic Capture Perched water containing chloroform has been removed from the subsurface by operating chloroform pumping wells MW-4, MW-26 and TW4-19 since 2003; TW4-4 since 2010; TW4-l, TW4-2, TW4-ll, TW4-21 and TW4-37 since 2015; TW4-39 since the fourth quarter of 2016; TW4-41 since the second quarter of 2018; and TW4-40 since the second quarter of 2019. TW4- 20 was also operated as a pumping well from 2005 until August, 2020 when it collapsed and was subsequently abandoned. The primary purpose of pumping the above wells is to reduce total chloroform mass in the perched zone as rapidly as is practical. The original pumping wells upgradient of TW 4-4 were chosen because 1) they were located in areas of the perched zone having relatively high permeability and saturated thickness, and 2) high concentrations of chloroform were detected at these locations. The relatively high transmissivity of the perched zone in the vicinity of these original pumping wells resulted in the wells having a relatively high productivity. The combination of relatively high productivity and high chloroform concentrations allowed for a high rate of chloroform mass removal. TW4-4 and TW 4-41 are located in a downgradient area having relatively high chloroform concentrations but relatively small saturated thickness, and at a transition from relatively high to relatively low permeability conditions downgradient of TW4-4. As with the other chloroform pumping wells, pumping TW 4-4 and TW 4-41 helps to reduce the rate of chloroform migration in downgradient portions of the plume. Although pumping of TW4-6 and TW4-26 (located south of TW4-4 and TW4-41) is impractical due to low permeability and small saturated thicknesses, the permeability in the vicinity of TW 4- 40 (located south of TW4-26) is large enough to make pumping practical. TW4-40 is valuable in that it is located within the downgradient (southern) toe of the plume and is relatively productive. Pumping of TW4-40 is likely to more effectively reduce or prevent further downgradient plume migration than can be expected by pumping at the more upgradient locations. The impact of chloroform pumping is indicated by the water level contour maps attached under Tabs D and E. Cones of depression are evident in the vicinity of MW-4; and near MW-26, TW4-19, TW4-37 and TW4-39. These wells continue to remove significant quantities of chloroform from the perched zone. Relatively large cones of depression are also evident in the vicinities of wells TW4-l and TW4-2 (near MW-4); and at TW4-11. These wells began pumping during the first quarter of 2015. As discussed in Section 4.1.1, although chloroform pumping well TW 4-4 became operational in 2010, the drawdown associated with TW 4-4 was likely less apparent due to variable permeability conditions near TW 4-4 and the persistently low water level 21 at adjacent well TW4-14. However, pumping at adjacent well TW4-41 since the second quarter of 2018 has generally increased drawdowns in this area; the third quarter of 2018 was the first quarter that a well-defined cone of depression was associated with TW4-4. As discussed in Section 4.1.2 the combined pumping of TW4-4 and TW4-41, enhanced by initiation of pumping at TW4-40 during the second quarter of 2019, has contributed to southerly expansion of total pumping system capture. Overall, the water level contour maps indicate effective capture of water containing high chloroform concentrations in the vicinities of the pumping wells. Compared to last quarter, both increases and decreases in water levels occurred at nitrate and chloroform pumping wells, although changes in water levels in chloroform pumping wells TW4- 11, TW4-37, TW4-40 and TW4-41; and nitrate pumping wells TW4-22, TW4-24 and TWN-2 were less than two feet. Water level decreases occurred in chloroform pumping wells TW4-4 (nearly 4 feet); TW4-19 (more than 2 feet); and TW4-37 (approximately 1.4 feet); and in nitrate pumping wells TW4-22 (approximately 1.9 feet); TW4-24 (nearly 1.7 feet); and TWN-2 (more than 1.8 feet). Water level increases occurred in chloroform pumping wells MW-4 (approximately 3.5 feet); MW-26 (approximately 14.4 feet); TW4-1 (more than 2 feet); TW4-2 (more than 15 feet); TW4-11 (nearly 1 foot); TW4-21 (more than 6 feet)); TW4-39 (nearly 3 feet); TW4-40 (approximately 0.75 feet); and TW4-41 nearly 0.3 feet; and in nitrate pumping well TW4-25 (more than 2.1 feet). Overall, the apparent combined capture area of the nitrate and chloroform pumping systems is smaller than last quarter; capture decreased primarily within the central portion of the pumping system due to decreased drawdowns at chloroform pumping well MW-26. The capture associated with nitrate pumping wells and chloroform pumping wells added since the beginning of 2015 is expected to generally increase over time as water levels continue to decline due to cessation of water delivery to the northern wildlife ponds and continued pumping. Slow development of hydraulic capture in the vicinities of many wells is consistent with and expected based on the relatively low permeability of the perched zone at the site. The hydraulic capture effectiveness of both chloroform and nitrate pumping systems depends to some extent on the continued productivity of chloroform and nitrate pumping wells. Decreases in productivity since the third quarter of 2014 have been noted in chloroform pumping well TW 4- 19 and nitrate pumping well TW4-24. The impact of reduced productivity of these wells on chloroform capture was discussed in Attachment N (Tab N) of the third quarter, 2015 report. The report also included a discussion of the effectiveness of chloroform pumping on chloroform capture. 'Background' flow through the chloroform plume was calculated in Attachment N as approximately 3.3 gpm. A more refined 'background' flow calculation of 3.4 gpm was provided in the CACME Report (See HGC, March 31, 2016: Corrective Action Comprehensive Monitoring Evaluation Report, White Mesa Uranium Mill, Near Blanding, Utah). Decreases in productivity at TW 4-4 since the third quarter of 2016 have been addressed by the operation of adjacent pumping well TW 4-41 since the second quarter of 2018. 22 Pumping from wells within and immediately adjacent to the chloroform plume during the current quarter (from wells MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-22, TW4-24, TW4-37, TW4-39, TW4-40 and TW4-41) is approximately 4.3 gpm. The pumping calculation is based on the total volume pumped by the above wells over the 90 day quarter (561,766 gallons) and accounts for times that the pumps are off due to insufficient water columns in the wells. Pumping from these wells exceeds the calculated background flow by 0.8 gpm or 24 % and is considered adequate at the present time even with the reduced productivities of some wells and the abandonment of TW 4-20. In addition, because of continued reductions in saturated thicknesses and hydraulic gradients resulting from reduced wildlife pond recharge, 'background' flow through the plume is expected to continue to diminish, thereby reducing the pumping needed to control the plume. Chloroform concentrations at many locations have been or appear to be affected by changes associated with reduced dilution from the wildlife ponds and nitrate pumping. For example, increases in chloroform at TW4-22 and TW4-24 after these wells were converted to nitrate pumping wells are attributable to westward migration of chloroform from the vicinity of TW 4-20 (now abandoned) toward these wells. The increase in concentration at TW 4-8 from non-detect to 100 µg/L in the first quarter of 2014 is likely related to reduced dilution. The concentration at TW 4-8 remained below 70 ug/L this quarter after dropping below 70 µg/L during the first quarter of 2020. In addition, although the chloroform concentration in TW4-6 generally decreased between the first quarter of 2015 and the current quarter (and remains outside the plume), concentrations at TW 4-6 increased from approximately 6 µg/L in the first quarter of 2014 to 1,180 µg/L in the first quarter of 2015 before dropping to 2.6 µg/L this quarter. The increase between the first quarter of 2014 and the first quarter of 2015 was likely related to both reduced dilution and more westward flow induced by nitrate pumping. TW 4-6 is located immediately south and historically cross-to downgradient of chloroform pumping well TW4-4. TW4-6 has been incorporated into the chloroform plume twice: from the first quarter of 2009 through the third quarter of 2010; and from the third quarter of 2014 through the second quarter of 2018. Pumping of TW4-6 (and TW4-26) is impractical because of relatively low permeability and relatively small saturated thicknesses. However, pumping at more productive locations upgradient of TW4-6 (such as TW4-4 and TW4-41) enhances mass removal and lowers hydraulic gradients, thereby reducing the rate of downgradient chloroform migration and allowing natural attenuation to be more effective. Pumping at TW 4-4 was implemented during the first quarter of 2010 to improve capture downgradient of TW 4-4 to the extent allowable by the lower productivity conditions present in this area. The beneficial effect of pumping TW 4-4 was demonstrated by the net decreases in TW 4-6 chloroform concentrations from 1,000 µg/L to 10.3 µg/L, and in TW4-26 from 13 µg/L to 4.2 µg/L, between the initiation of TW4-4 pumping and the second quarter of 2014. Concentrations at these wells decreased substantially even though they did not unambiguously appear to be within the hydraulic capture of TW4-4. As discussed in Section 4.1.1, however, the decrease in the long-term rate of water level rise at TW4-6 after TW4-4 began pumping does suggest that TW4-6 was within the hydraulic influence of TW4-4. The decline in water levels at TW4-6 since the fourth quarter of 2013 likely reflects the additional influences of cessation of water delivery 23 to the wildlife ponds and the addition of chloroform pumping wells TW4-1, TW4-2, TW4-11 and TW 4-41. Regardless of whether TW 4-6 was demonstrably within the hydraulic capture of TW4-4, pumping TW4-4, and more recently installed adjacent pumping well TW4-41, helps to reduce chloroform migration to TW4-6, TW4-26, and other downgradient locations by the mechanisms discussed above. Likewise, pumping at other productive upgradient locations has a beneficial impact on downgradient chloroform even if the downgradient chloroform is not completely within the hydraulic capture of the productive upgradient well(s). For example, pumping at MW-26 likely reduced chloroform concentrations at TW4-16 from a maximum of 530 µg/L in the second quarter of 2004 to less than 70 µg/L by the fourth quarter of 2005, and maintained concentrations below 70 µg/L until the second quarter of 2014, even though TW 4-16 appears to be beyond the hydraulic capture of MW-26. Furthermore, the overall hydraulic capture of the chloroform pumping system has expanded since initiation of pumping at wells TW4-1, TW4-2, TW4-11, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 since the beginning of 2015. In particular, the addition of wells TW4-1, TW4-2, TW4-11, TW4-21, TW4-37 and TW4-39 likely halted the mid-2013 to end of 2014 increase in concentration at TW4-16 from non-detect to 387 µg/L. Concentrations at TW4-16 dropped from 387 µg/L in the fourth quarter of 2014 to less than 70 µg/L by the second quarter of 2015. Although chloroform at TW 4-16 has been above and below 70 µg/L since 2014 and was detected at 182 µg/L this quarter, concentrations have generally increased since 2018, likely in response to reduced dilution. Chloroform exceeding 70 µg/L was detected in the second quarter of 2013 at TW4-29, installed during the first quarter of 2013 and located south of TW4-27 and east of TW4-26. With respect to historic groundwater flow directions implied by historic groundwater elevations in this area, TW4-29 was positioned generally cross-gradient of TW4-4 and TW4-6. As discussed in Section 4.1.1, chloroform detected at TW4-29 may have migrated around the low permeability area defined by TW4-27, TW4-14 and TW4-36. The apparent migration pathway from TW4-4 to TW4-29 is consistent with chloroform exceeding 70 µg/L detected in the fourth quarter of 2013 at TW4-33, installed during the third quarter of 2013 and located between TW4-4 and TW4-29. Chloroform concentrations at TW4-33 that are lower than concentrations at TW4-29, and the likelihood that a pathway exists from TW4-4 to TW4-33 to TW4-29, suggest that concentrations in the vicinity of TW4-33 were likely higher prior to initiation ofTW4-4 pumping. TW4-4 pumping (augmented by pumping at adjacent well TW4-41) has been expected to reduce chloroform at both TW4-33 and TW4-29 by cutting off the source, with the impact at TW4-33 anticipated to be greater than at TW4-29 because TW4-33 is in closer proximity to TW4-4 (and TW 4-41) pumping. By analogy, such behavior would be consistent with the decreases m chloroform concentrations at TW4-6 and TW4-26 that occurred once TW4-4 pumping began. However, for several quarters after installation, concentrations at both TW4-29 and TW4-33 were relatively stable (rather than decreasing). Between the third quarter of 2014 and the second quarter of 2020, concentrations at TW4-29 generally increased; subsequently concentrations stabilized then began to decrease. Over the same time period concentrations at TW4-33 remained generally stable to decreasing. As discussed in Section 4.1.1, decreasing concentration trends at both wells were eventually expected to occur. Since the third quarter of 2014, TW4-33 24 concentrations that have been relatively stable to decreasing; and TW4-29 concentrations that generally increased before stabilizing then generally decreasing; appear consistent with these expectations. Trends at these wells suggest that chloroform migration has been arrested at TW4- 33 by TW4-4 (and TW4-41) pumping and that previously increasing chloroform at TW4-29 resulted from a remnant of the plume that migrated past TW4-33 generally toward TW4-30. The influence of TW 4-4 pumping at the distal end of the plume is consistent with generally decreasing water levels at both TW4-29 and TW4-33. However, as discussed in Section 4.1.1, decreasing water level trends are also consistent with reduced wildlife pond seepage. The decay of the groundwater mound associated with the southern wildlife pond, which is 3 to 4 times closer to the southern extremity of the chloroform plume than the northern ponds, is likely to have an impact on water levels within and adjacent to this portion of the plume. As discussed in Section 4.1.1, generally decreasing water level trends at TW 4-6 and TW 4-26 (since about the fourth quarter of 2013), temporarily increased concentrations at TW4-6 (since the first quarter of 2014) and increased concentrations at TW4-26 (since the third quarter of 2016), are also consistent with reduced wildlife pond seepage, in particular reduced seepage from the southern wildlife pond. As the groundwater mound associated with the southern pond decays, groundwater flow directions in the southern extremity of the plume have become more southerly, and plume migration is turning more to the south. An increasingly southerly direction of plume migration is consistent with increased concentrations at TW4-26 (from less than 10 µg/L in the third quarter of 2016 to 709 µg/L this quarter). In addition, as in the area near TW4-29 and TW4-33, generally decreasing concentrations at TW4-6 since the third quarter of 2015, and generally increased concentrations at TW4-26 since the third quarter of 2016, suggest that TW4-4 (and TW4-41) pumping has arrested chloroform migration between TW4-4 and TW4-6, and that increased chloroform at TW4-26 results from a remnant of the plume that continues to migrate south from TW4-6 to TW4-26. The enhancement of pumping in the vicinity ofTW4-4 by the start-up ofTW4-41 pumping in the second quarter of 2018 has been expected to increase this apparent separation and to have resulted m concentrations at TW4-6 dropping below 70 µg/L beginning in the third quarter of 2018. Furthermore, small but detectable chloroform concentrations at TW4-14 (from the fourth quarter of 2014 through the first quarter of 2021; and during the third quarter of 2022) and at TW 4-27 (since the third quarter of 2015) suggest ongoing, but slow, downgradient migration of chloroform from the southeastern extremity of the plume into the low permeability materials penetrated by these wells. Because the chloroform concentration at TW4-30 dropped below 70 µg/L during the third quarter of 2022, TW4-30 again bounds the plume to the east of TW4-29. Chloroform analytical results from TW4-35 (as discussed in Section 4.2.3) demonstrate that chloroform is bounded to the southeast of TW4-29; and relatively recently installed well TW4- 43 bounds chloroform to the southeast of TW4-29 and TW4-30. From 2014 through 2019 chloroform concentrations at TW4-8 exceeded 70 µg/L and TW4-36 (non-detect for chloroform) served as an eastern bounding well. However, since the end of 2019, chloroform at TW4-8 remained below 70 µg/L and continues to bound the chloroform plume to the east. 25 4.2 Review of Analytical Results 4.2.1 Current Chloroform Isoconcentration Map Included under Tab J of this Report is a current chloroform isoconcentration map for the Mill site. Details of the gridding procedure used to generate the chloroform isoconcentration map (consistent with Part III.B.2.a through Part III.B.2.c of the GCAP) are provided in Tab L. 4.2.2 Chloroform Concentration Trend Data and Graphs Attached under Tab K are tables summarizing values for all required parameters, chloride, nitrate/nitrite, carbon tetrachloride, chloroform, chloromethane, and methylene chloride, for each well over time. Attached under Tab Kare graphs showing chloroform concentration trends in each monitor well over time. 4.2.3 Interpretation of Analytical Data Comparing the chloroform analytical results to those of the previous quarter, as summarized in the tables included under Tab K, the following observations can be made: a) Chloroform concentrations have increased by more than 20% in the following wells compared to last quarter: TW4-9 and TW4-40; b) Chloroform concentrations decreased by more than 20% in the following well compared to last quarter: TW4-4, TW4-19 and TW4-21; c) Chloroform concentrations have remained within 20% in the following wells compared to last quarter: MW-4, MW-26, TW4-l, TW4-2, TW4-5, TW4-6, TW4-7, TW4-8, TW4- 10, TW4-11, TW4-16, TW4-18, TW4-22, TW4-24, TW4-26, TW4-27, TW4-29, TW4- 30, TW4-33, TW4-37, TW4-39 and TW4-41; d) Chloroform concentrations have remained non-detect in the following wells: MW-32, TW4-3, TW4-12, TW4-13, TW4-14, TW4-23, TW4-25, TW4-28, TW4-31, TW4-32, TW4-36, TW4-38, TW4-42 and TW4-43; e) Chloroform at TW4-35 increased from non-detect to 1.4 µg/L; and f) Chloroform at TW4-34 decreased from 1.2 µg/L to non-detect. As indicated, chloroform concentrations at many of the wells with detected chloroform were within 20% of the values reported for the wells during the previous quarter, suggesting that variations are within the range typical for sampling and analytical error. Wells TW4-4, TW4-9, TW4-19, TW4-21 and TW4-40 had changes in concentration greater than 20%. Of these, TW4- 4, TW4-19, TW4-21 and TW4-40 are chloroform pumping wells; and TW4-9 is located just outside the chloroform plume boundary. Fluctuations in concentrations at both chloroform and 26 nitrate pumping wells and wells adjacent to pumping wells likely result in part from changes in pumping. In addition, fluctuations in concentrations are expected at wells located near the plume margins (such as TW4-9). Chloroform pumping wells MW-4 (1,030 µg/L); TW4-11 (2,630 µg/L); TW4-37 (9,620 µg/L); TW4-39 (3,440 µg/L); TW4-41 (1,050 µg/L); and nitrate pumping well TW4-22 (1,890 µg/L) had the highest detected chloroform concentrations. Although pumping well TW4-20, formerly located between pumping wells TW4-19 and TW4-37, would typically be distinguished as having one of the highest concentrations, TW4-20 collapsed during August, 2020 and was abandoned in October, 2020. Since last quarter, the chloroform concentrations in MW-4 decreased from 1,050 to 1,030 µg/L; TW4-11 increased from 2,510 to 2,630 µg/L; TW4-37 increased from 8,160 to 9,620 µg/L; and TW4-39 increased from 3,330 to 3,440 µg/L. In addition, the chloroform concentration in chloroform pumping well TW4-21 decreased from 768 to 49.7 µg/L; the concentration in chloroform pumping well TW4-41 increased from 1,040 to 1,050 µg/L; the concentration in nitrate pumping well TW4-22 decreased from 2,180 to 1,890 µg/L; and the concentration in nitrate pumping well TW4-24 increased from 58.5 to 65.7 µg/L, remaining just outside the plume boundary this quarter. Nitrate pumping well TW4-25 remained non-detect. TW4-25, located north ofTW4-21, bounds the chloroform plume to the north. Chloroform at TW4-8 (which was non-detect from the first quarter of 2008 through the fourth quarter of 2013) decreased from approximately 8.3 µg/L to approximately 7.4 µg/L, and remained outside the plume. TW 4-8 is located immediately east of chloroform pumping well MW-4, where chloroform was detected at a concentration of 1,030 µg/L. Although the plume boundary remained between MW-4 and TW 4-8 from the first quarter of 2005 through the fourth quarter of 2013, TW4-8 was re-incorporated into the plume between the first quarter of 2014 and the fourth quarter of 2019. Elevated chloroform at TW4-8 was bounded to the north by TW4-3 and TW4-38 (both non-detect), to the northeast by TW4-13 (non-detect), to the east by TW4-36 (non-detect), and to the southeast by TW4-14 (which has remained below 10 µg/L and is non- detect this quarter). Although previously elevated, TW4-8 has remained outside of and has bounded the plume since the end of 2019. Changes in the plume boundary near TW 4-8 are expected to result from changes in pumping and reduced dilution resulting from cessation of water delivery to the northern wildlife ponds. Chloroform at TW4-29 (located at the southeastern extremity of the plume, to the east of TW4- 26 and to the south of TW4-27) decreased from 490 µg/L to 457 µg/L; and chloroform at TW4- 30, located immediately cross-gradient of TW4-29, increased slightly from 47 µg/L to 47.8 µg/L, remaining outside the plume. Chloroform at TW4-14 remained non-detect and chloroform at TW4-27 increased from approximately 2.5 µg/L to 3 µg/L. Concentration trends at these wells are generally consistent with ongoing, but slow, downgradient migration of chloroform at these locations. For example, it took more than 51 quarters for detectable chloroform at TW 4-4 to migrate approximately 400 feet downgradient to TW4-14; and it took more than 30 quarters for chloroform exceeding 70 µg/L at TW4-29 to migrate approximately 160 feet to TW4-30. In addition, although TW4-30 was previously downgradient of TW4-29, due to long-term changes in water levels in this area, TW4-30 is now generally cross-gradient of TW4-29. 27 Furthermore, as discussed in Section 4.1.1, increased concentrations at TW4-26 since the third quarter of 2016 are also consistent with continuing downgradient chloroform migration which is likely enhanced by the decay of the groundwater mound associated with the southern wildlife pond. Increased concentrations at TW4-26 have widened the southeast extremity of the plume which historically was narrow compared to more upgradient locations. Chloroform at TW4-29 is bounded to the north by TW4-27 (approximately 3 µg/L), to the southeast by TW4-35 (approximately 1.4 µg/L), to the south by TW4-34 (non-detect), and to the west-northwest by TW4-6 (approximately 2.6 µg/L) and TW4-23 (non-detect). As discussed above, TW4-30, with a concentration of 47.8 µg/L again bounds the plume to the east of TW4- 29, as it did prior to the fourth quarter of 2020. TW4-43, installed in September, 2021, served as a new bounding well during the period that concentrations at TW4-30 exceeded 70 µg/L. Continued monitoring will determine whether TW4-30 acts as a bounding well in the future. Chloroform at TW4-33 (located between TW4-4 and TW4-29) showed a slight decrease in concentration, from approximately 51.8 µg/L to approximately 51.3 µg/L. TW4-33 has remained outside the plume since the first quarter of 2021. Chloroform at TW4-33 is bounded to the north by TW4-14 (non-detect), to the east by TW4-27 (approximately 2.9 µg/L), and to the west by TW4-6 (approximately 2.6 µg/L) and TW4-23 (non-detect). The chloroform concentration in TW4-6 increased slightly from approximately 2.3 µg/L to 2.6 µg/L. TW4-6 has remained outside the chloroform plume since the third quarter of 2018. Installed in the second quarter of 2000, TW 4-6 was the most downgradient temporary perched well prior to installation of TW 4-23 in 2007 and TW 4-26 in the second quarter of 2010. TW 4-6 remained outside the chloroform plume between installation in the second quarter of 2000 and the fourth quarter of 2008 likely due to a combination of 1) slow rates of downgradient chloroform migration in this area due to low permeability conditions and the effects of up gradient chloroform removal by pumping, and 2) natural attenuation. TW 4-6 was subsequently incorporated into the plume twice: from the first quarter of 2009 through the third quarter of 2010; and from the third quarter of 2014 through the second quarter of 2018. Between initiation of pumping of TW 4-4 in the first quarter of 2010 and the second quarter of 2014, concentrations at TW4-6 showed a net decrease from 1,000 µg/L to 10.3 µg/L. The relatively slow rate of chloroform migration in the vicinity of TW4-6 in the past is demonstrated by comparing the rate of increase in chloroform at this well to the rate of increase in the nearest upgradient well TW4-4. Concentrations at TW4-4 increased from non-detect to more than 2,200 µg/L within only two quarters whereas 16 quarters were required for concentrations in TW 4-6 to increase from non-detect to only 81 µg/L. This behavior is consistent with hydraulic tests performed at TW4-4, TW4-6, and TW4-26 during the third quarter of 2010 that indicate a nearly two orders of magnitude decrease in permeability south ( downgradient) of TW4-4. Chloroform migration rates in the vicinities of wells TW4-26, TW4-29 and TW4-33 have been expected to be relatively slow due to upgradient pumping and relatively low permeability conditions. By analogy with the decreases in concentration at TW4-6 and TW4-26 that occurred after initiation of TW4-4 pumping, chloroform concentrations at both TW4-29 and 28 TW4-33 have been expected to eventually trend downward; and recent data are consistent with this expectation. Although changes in concentration have occurred in wells within the chloroform plume, the boundaries of the plume have not changed significantly since the last quarter, except for a contraction near TW4-21. The contraction was due to chloroform concentration decreases at TW4-19 and TW4-21, which brought TW4-21 outside the plume this quarter. As has been the case since the first quarter of 2020, due primarily to decreases in concentrations at TW4-6 and TW4-33 , the kriging algorithm has 'pinched off the southern extremity of the plume. TW4-9 remained outside the plume from the second quarter of 2019 through the first quarter of 2021; was temporarily re-incorporated within the plume during the second quarter of 2021; and remains outside the plume again this quarter. TW 4-9 was incorporated into the plume from the first quarter of 2016 until the first quarter of 2019 due to increased concentrations attributable to reduced recharge (and dilution) from the northern wildlife ponds. Prior to the first quarter of 2016, however, TW4-9 was outside the plume except during the fourth quarter of 2014. Nitrate pumping generally caused the western boundary of the northern portion of the chloroform plume to migrate to the west toward TW4-24. Since the first quarter of 2014, TW4- 24 has been both inside and outside the plume and is just outside the plume this quarter. TW4-24 likely remained primarily outside the plume since 2014 due to initiation of TW4-37 pumping in the second quarter of 2015 and reduced productivity at TW4-24 (since the third quarter of 2014). Subsequent to the first quarter of 2014, generally higher concentrations at TW4-6 and TW4-16 (both of which were within the chloroform plume in the past) caused the plume boundary to migrate to the southwest and temporarily re-incorporate both wells. This increase was likely related to reduced dilution from cessation of water delivery to the northern wildlife ponds and more westerly flow induced by nitrate pumping. In addition, concentrations at TW 4-6 are expected to be influenced by reduced recharge at the southern wildlife pond and the decay of the associated groundwater mound. TW 4-6 has remained outside the plume since the third quarter of 2018 due to the general decrease in chloroform concentrations since the third quarter of 2015, while (as discussed in Section 4.1.5) TW4-16 has been both within and outside the plume. This quarter, although TW4- 6 remains outside the plume, TW 4-16 remains just within the plume. The decreasing trend in chloroform concentrations at TW 4-6 since the third quarter of 2015, and generally increased concentrations at TW 4-26 since the third quarter of 2016, suggest that TW 4- 4 pumping has arrested chloroform migration between TW 4-4 and TW 4-6, and that increased chloroform at TW4-26 results from a remnant of the plume that continues to migrate south from TW4-6 to TW4-26. This behavior is consistent with the apparent 'pinching-off of the southern extremity of the plume since the end of 2019. Regardless, pumping at TW 4-41, located adjacent to TW4-4, and pumping at TW4-40, located just south (downgradient) of TW4-26, is expected to reduce or halt plume expansion to the south. Although the nitrate pumping system may redistribute chloroform within the plume and cause changes in the chloroform plume boundaries, continued operation of the nitrate pumping system 29 is expected to enhance capture associated with the chloroform pumping system. Furthermore, since the beginning of 2015, the addition of chloroform wells TW4-1, TW4-2, TW4-11, TW4- 21, TW4-37, TW4-39, TW4-40 and TW4-41 is expected to have a beneficial impact. Generally reduced concentrations at TW4-6 (since the first quarter of 2015) and TW4-16 (since the fourth quarter of 2014) after previous increases are likely the result of initiation of TW4-1, TW4-2, and TW4-11 pumping during 2015. Maintaining reduced concentrations at TW4-6 is anticipated to result from pumping at TW 4-41. 5.0 LONG TERM PUMP TEST AT MW-4, MW-26, TW4-19, TW4-20, AND TW4-4 OPERATIONS REPORT 5.1 Introduction As a part of the investigation of chloroform contamination at the Mill site, EFRI has been conducting a Long Term Pump Test on MW-4, TW4-19, MW-26, and TW4-20, and, since January 31, 2010, TW 4-4. The purpose of the test is to serve as an interim action that will remove a significant amount of chloroform-contaminated water while gathering additional data on hydraulic properties in the area of investigation. TW4-20 collapsed in August of 2020 and was abandoned in October 2020. Beginning in January 2013, EFRI began long term pumping of TW4-22, TW4-24, TW4-25, and TWN-02 as required by the Nitrate CAP, dated May 7, 2012 and the Stipulated Consent Order (the "SCO") dated December 12, 2012. Because wells TW4-22, TW4-24, and TW4-25 are chloroform program wells, they are included in this report and any chloroform removal realized as part of this pumping is calculated and included in the chloroform quarterly reports. Beginning on January 14, 2015, EFRI began long term pumping ofTW4-1, TW4-2, and TW4-11 and began long term pumping of TW4-21 and TW4-37 on June 9, 2015. Beginning in December 2016 EFRI began long term pumping of TW4-39. Beginning in April 2018 EFRI began long term pumping of TW4-41. Beginning in May 2019 EFRI began long term pumping ofTW4-40. The following information documents the operational activities during the quarter. 5.2 Pump Test Data Collection The long term pump test for MW-4 was started on April 14, 2003, followed by the start of pumping from TW4-19 on April 30, 2003, from MW-26 on August 8, 2003, from TW4-20 on August 4, 2005, from TW4-4 on January 31, 2010, and from TW4-22, TW4-24, and TW4-25 on January 26, 2013. Personnel from Hydro Geo Chem, Inc. were on site to conduct the first phase of the pump test and collect the initial two days of monitoring data for MW-4. EFRI personnel have gathered subsequent water level and pumping data. Analyses of hydraulic parameters and discussions of perched zone hydrogeology near MW-4 has been provided by Hydro Geo Chem in a separate report, dated November 12, 2001, and in the May 26, 2004 Final Report on the Long Term Pumping Test. Data collected during the quarter included the following: 30 • Measurement of water levels at MW-4, TW4-1, TW4-2, TW4-4, TW4-11, TW4- 19, MW-26, TW4-21, TWN-2, TW4-22, TW4-24, TW4-25, TW4-37, TW4-39 TW4-40, and TW4-41 on a weekly basis, and at selected temporary wells and permanent monitoring wells on a monthly basis. • Measurement of pumping history, including: -pumping rates -total pumped volume -operational and non-operational periods. • Periodic sampling of pumped water for chloroform and nitrate/nitrite analysis and other constituents. 5.3 Water Level Measurements Beginning August 16, 2003, the frequency of water level measurements from MW-4, MW-26, and TW 4-19 was reduced to weekly. From commencement of pumping, and regularly after March 1, 2010 for TW4-4, water levels in these wells have been measured weekly. From commencement of pumping, water levels in wells TW4-1, TW4-2, TW4-11, TW4-21, TW4-22, TW4-24, TW4-25, TW4-37, TW4-39, TW4-41, and TWN-2 have been measured weekly. Depth to groundwater in all other chloroform contaminant investigation wells is monitored monthly. Copies of the weekly Depth to Water monitoring sheets for MW-4, MW-26, TW4-1, TW4-2, TW4-11, TW4-19, TW4-21, TW4-4, TW4-22, TW4-24, TW4-25, TW4-37, TW4-39, TW4-40 (beginning May 2019), TW4-41 and TWN-2 and the monthly Depth to Water monitoring sheets for the chloroform contaminant investigation wells and the selected temporary wells and permanent monitoring wells are included under Tab C. Monthly depth to water measurements for the quarter are recorded in the Field Data Worksheets included under Tab C. 5.4 Pumping Rates and Volumes Table G-2 summarizes the recovered mass of chloroform by well per quarter and historically since the inception of the chloroform recovery program for the active pumping wells. It is important to note that TWN-02 is a nitrate program well and is sampled only for nitrate and chloride as required by the nitrate program. Because TWN-02 is not sampled or analyzed for chloroform, the mass of chloroform recovered is not calculated. The pumping wells do not pump continuously but are on a delay device. The wells purge for a set amount of time and then shut off to allow the well to recharge. Water from the pumping wells is transferred to a holding tank. The water in the holding tank is used in the Mill processes. The pumping rates and volumes for each of the pumping wells are shown in Table G-3. Specific operational problems observed with the well or pumping equipment which occurred during the quarter are noted for each well below. 5.4.1 TW4-41 During the routine check on July 17, 2023, the pump in TW4-41 was found non-operational. All ancillary systems were checked and there appeared to be an electrical issue which caused a 31 power loss. An electrician was contacted and the issue was repaired. The issue was addressed within 24 hours of discovery and as such no notifications were necessary. 5.5 Mass Removed and Plume Residual Mass Chloroform removal was estimated as of the first quarter 2007. Since that estimation, the mass removed by well for each quarter has been compiled in Table G-2, which shows the pounds of chloroform that have been removed to date. It should be noted that corrections were made to the mass removed tables after Ql 2023 to correct typographical errors. No other corrections were necessary as the change did not affect any other reported information. The mass of chloroform removed from the plume this quarter is approximately 7 .2 lb., which is approximately 3 7 % less than the approximately 11.4 lb. removed last quarter. The smaller rate of mass removal is attributable primarily to the decreased concentrations at TW 4-19. The residual mass of chloroform within the plume is estimated as 663 lb. using the methodology described in Appendix A of the GCAP ("Chloroform Plume Mass Calculation Method"). This is approximately 265 lb. smaller than last quarter's estimate of 928 lb, due primarily to decreased concentrations at TW4-19 and TW4-21. As per Part III.B.2 of the GCAP, electronic files used in calculating the mass estimate are provided with this report. Details of the procedure are provided in Tab L. The residual mass is plotted in Figure L.1. Subsequent residual plume mass estimates will be calculated quarterly, added to the graph, and the trendline updated as per Part III.B.3 of the GCAP. As discussed in the CACME Report, the calculated chloroform mass has been larger since the cessation of water delivery to the two northern wildlife ponds in the first quarter of 2012. These ponds are located immediately upgradient of the chloroform plume. The increase in calculated mass results from increased plume area and increased average concentrations within the plume. The increases in both plume area and average concentrations are attributable to reduced dilution due to the reduction in chloroform-free wildlife pond seepage. However, the residual mass estimates have generally decreased since the second quarter of 2016 maximum estimate of 2,261 lb. suggesting stabilization and decline; and, although the residual mass estimates have generally been larger since 2012, the rate of mass removed per quarter by pumping has also been generally larger. Mass removal rates were particularly enhanced after the addition of 5 new pumping wells in 2015; and the subsequent addition of 3 additional pumping wells has helped maintain mass removal rates. Furthermore, although the pumping system is not designed to hydraulically capture the entire plume, the proportion of the mass of the plume under capture has historically been large. The proportion of the mass of the plume under capture during the fourth quarters of 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 and 2022 ranged from approximately 84% to 99%. The approximate proportion of the mass of the plume under capture this quarter is 93%, which is smaller than last quarter's approximately 98%. The decrease is primarily attributable to the shrinkage in capture resulting from the decrease in drawdown at MW-26. 32 As discussed above, the residual mass estimates have been generally larger since the cessation of water delivery to the two northern wildlife ponds in the first quarter of 2012; however, the first quarter 2023 mass estimate ( 444 lb.) was less than the first quarter, 2012 mass estimate of 492 lb. However, although larger, the previous and current quarter's mass estimates are consistent with the general decrease in residual mass estimates since the mid-2016 maximum estimate. 5.6 Inspections All of the required inspections were completed, and the inspection forms are included in Tab C. 5.7 Conditions That May Affect Water Levels in Piezometers No water was added to the any of the wildlife ponds during the quarter. 6.0 CORRECTIVE ACTION REPORT No corrective actions were necessary for the current reporting period. 6.1 Assessment of Previous Quarter's Corrective Actions There were no corrective actions required during the previous quarters' monitoring period. 7.0 CURRENT COMPLIANCE STATUS 7.1 Long Term Chloroform Plume Control The chloroform plume is currently entirely within the Mill property boundary and is bounded on all sides by wells having chloroform concentrations that are either non-detect or less than 70 µg/L (Tab J). The chloroform plume is bounded to the north by TW4-25 (non-detect); to the west and southwest by MW-28 (non-detect), MW-31 (hon-detect), MW-32 (non-detect), TW4-6 (approximately 2.6 µg/L) and TW4-23 (non-detect); to the east by TW4-3 (non-detect), TW4-5 (approximately 9 µg/L), TW4-8 (approximately 7.4 µg/L), TW4-9 (approximately 6 µg/L), TW4-13 (non-detect), TW4-14 (non-detect), TW4-18 (nearly 56 µg/L), TW4-27 (nearly 3 µg/L), TW4-30 (nearly 48 µg/L), TW4-33 (approximately 51 µg/L); TW4-36 (non-detect) and TW4-38 (non-detect); to the south by TW4-34 (non-detect) and TW4-42 (non-detect); and to the southeast by TW4-35 (approximately 1.4 µg/L) and TW4-43 (non-detect). As discussed in Section 4.1.1, chloroform at 1.2 µg/L was detected last quarter at TW4-34 (located south and cross-to downgradient of TW4-29). The previous quarter's detection was the third detection of chloroform at this well since the first detection during the third quarter of 2022. That chloroform was detected at TW4-34 for the third time last quarter suggests that the detections may result from slow downgradient plume migration; however, TW4-34 is again non- detect for chloroform this quarter. In addition, chloroform at nearby well TW4-35 was detected for the first time this quarter (at 1.4 µg/L), which may also result from slow downgradient plume migration. 33 Furthermore, chloroform is not detected at wells far to the south ( cross-to downgradient) and southwest (cross-gradient) of the plume. MW-17 (non-detect) and MW-38 (non-detect) bound the plume to the far southwest (cross-gradient); and MW-22 (non-detect), MW-39 (non-detect) and MW-40 (non-detect) bound the plume far to the south (cross-to downgradient). Because TW4-30 no longer bounded the plume immediately to the east due to increases in concentration that brought TW4-30 into the plume for the first time during the fourth quarter of 2020, new bounding well TW4-43 was installed approximately 200 feet to the east-southeast of TW4-30 during September, 2021. As indicated above, chloroform has not been detected at TW4- 43; and, due to decreases in chloroform concentrations since 2021, TW4-30 has been outside the plume since the third quarter of 2022. Subsequent data will determine whether or not TW4-30 remains outside the plume and can serve (as in the past) as a bounding well. Data collected to date indicate there are sufficient chloroform monitoring and pumping wells to effectively define, control, and monitor the plume. In addition, site water level data indicate that perched groundwater flow to the east of TW4-30, between TW4-30 and the eastern site property boundary, is to the south-southwest; therefore it is unlikely that any chloroform within this portion of the plume could ever migrate across the eastern property boundary. Furthermore, chloroform in the vicinity of TW4-30 is migrating relatively slowly; it took more than 30 quarters for chloroform exceeding 70 µg/L at TW4-29 to migrate approximately 160 feet to TW4-30. Due to long-term changes in water levels in this area, the former hydraulic gradient that was directed from TW4-29 toward TW4-30 no longer exists; consequently, chloroform is no longer expected to migrate from TW4-29 to TW4-30, consistent with the generally decreasing trend in chloroform since 2021 that has brought TW4-30 outside the plume since the third quarter of 2022. Finally, the groundwater flow direction in the immediate vicinity of TW4-30 is now south-southeasterly, generally toward TW4-35 and TW4-43. This quarter, TW4-43 is non- detect for chloroform while, as discussed above, chloroform was detected for the first time at TW4-35 at 1.4 µg/L. 7.2 Well Construction, Maintenance and Operation Part II of the GCAP specifies that EFRI must construct, maintain and operate the chloroform wells in accordance with the specifications delineated therein. The wells were maintained and operated as required. Additional details regarding any specific pumping well operations and maintenance issues noted during the quarter are discussed in Section 5.0 above. 7.3 Disposal of Extracted Groundwater Part II of the GCAP requires that all extracted groundwater be disposed of in the tailings management system or fed in the Mill process. All extracted groundwater was handled as required by the GCAP. 34 7.4 Compliance Well Performance Part ILG of the GCAP states that an exceedance of the compliance well performance standard is defined as the presence of chloroform in any compliance monitoring well in excess of 70 ug/L for two or more quarters. The compliance well chloroform concentrations were below the 70 ug/L except as noted in previous reports. The previously noted exceedances have been addressed in Plans and Time Schedules. There are no new exceedances in Q3 2023. 7.5 Chloroform Plume Monitoring for Wells within 500 Feet of the Property Boundary Currently there are no compliance wells within 500 feet of the property boundary. 8.0 CONCLUSIONS AND RECOMMENDATIONS The residual mass of chloroform within the plume is estimated as 663 lb. using the methodology described in Appendix A of the GCAP ("Chloroform Plume Mass Calculation Method"). This is 265 lb. less than last quarter's estimate of 928 lb., attributable primarily to decreased concentrations at chloroform pumping wells TW4-19 and TW4-21. Since the third quarter of 2015, the residual mass estimate trend is downward; and the current quarter's estimate of 663 lb. is substantially lower than both the third quarter 2015 estimate of 1,712 lb., and the maximum of 2,261 lb. estimated for the second quarter of 2016. In addition, although the residual mass estimates have generally been larger since cessation of water delivery to the wildlife ponds in 2012, the first quarter, 2023 mass estimate (444 lb.) was less than the first quarter, 2012 mass estimate of 492 lb. The previous and current quarter's larger mass estimates, are, however, consistent with the general decrease in residual mass estimates since the mid-2016 maximum. The mass of chloroform removed from the plume this quarter by pumping, approximately 7 .2 lb., is approximately 37 % smaller than the mass removed last quarter (approximately 11.4 lb.). The smaller mass removal is attributable primarily to the decreased concentrations at chloroform pumping well TW 4-19. The chloroform plume is currently entirely within the Mill property boundary and is bounded on all sides by wells having chloroform concentrations that are either non-detect or less than 70 µg/L (Tab J). The chloroform plume is bounded to the north by TW4-25 (non-detect); to the west and southwest by MW-28 (non-detect), MW-31 (non-detect), MW-32 (non-detect), TW4-6 (approximately 2.6 µg/L) and TW4-23 (non-detect); to the east by TW4-3 (non-detect), TW4-5 (approximately 9 µg/L), TW4-8 (approximately 7.4 µg/L), TW4-9 (approximately 6 µg/L), TW4-13 (non-detect), TW4-14 (non-detect), TW4-18 (approximately nearly 56 µg/L), TW4-27 (nearly 3 µg/L), TW4-30 (nearly 48 µg/L), TW4-33 (approximately 51 µg/L); TW4-36 (non- detect) and TW4-38 (non-detect); to the south by TW4-34 (non-detect) and TW4-42 (non- detect); and to the southeast by TW4-35 (approximately 1.4 µg/L) and TW4-43 (non-detect). 35 Because TW4-30 no longer bounded the plume immediately to the east due to increases in concentration that brought TW4-30 into the plume for the first time during the fourth quarter of 2020, new bounding well TW4-43 was installed approximately 200 feet to the east-southeast of TW4-30 during September, 2021. As indicated above, chloroform has not been detected at TW4- 43. However, due to concentration decreases since 2021, TW4-30 has been outside the plume since the third quarter of 2022, and again bounds the plume to the east. Subsequent data will determine whether or not TW4-30 remains outside the plume and can serve (as in the past) as a bounding well in the future. Data collected to date indicate there are sufficient chloroform monitoring and pumping wells to effectively define, control, and monitor the plume. In addition, site water level data indicate that perched groundwater flow to the east of TW4-30, between TW4-30 and the eastern site property boundary, is to the south-southwest; therefore, it is unlikely that any chloroform within this portion of the plume could ever migrate across the eastern property boundary. Furthermore, chloroform in the vicinity of TW4-30 is migrating relatively slowly; it took more than 30 quarters for chloroform exceeding 70 µg/L at TW4-29 to migrate approximately 160 feet to TW4-30. Due to long-term changes in water levels in this area, the former hydraulic gradient that was directed from TW4-29 toward TW4-30 no longer exists; consequently, chloroform is no longer expected to migrate from TW4-29 to TW4-30, consistent with the concentration decreases since 2021 that have brought TW4-30 again outside the plume. Finally, the groundwater flow direction in the immediate vicinity of TW4-30 is now south-southeasterly, generally toward TW4-35 and TW4-43, both non-detect for chloroform. The water level contour maps for the third quarter, 2023 indicate effective capture of water containing high chloroform concentrations over most of the chloroform plume. Capture in the southeastern portion of the plume (vicinity of MW-4) was enhanced by start-up of chloroform pumping wells TW4-l, TW4-2, and TW4-ll during the first quarter of 2015. Capture in the northwestern portion of the plume was enhanced by start-up of chloroform pumping wells TW4- 21 and TW 4-3 7 during the second quarter of 2015; and of TW 4-3 9 during the fourth quarter of 2016. Capture in the southernmost portion of the plume was enhanced by start-up of pumping at TW 4-41 during the second quarter of 2018 and of TW 4-40 during the second quarter of 2019. All pumping wells added since the beginning of 2015 have enhanced the effectiveness of chloroform mass removal. Although pumping began in the first quarter of 2010, a well-defined capture zone was not clearly evident at chloroform pumping well TW4-4 until the third quarter of 2018. Increased drawdowns in this area since the second quarter of 2018, and development of a definable capture zone, is attributable to pumping at adjacent well TW4-41. The capture zone associated with TW4-4 was likely obscured prior to the second quarter of 2018 by the historically relatively low water level at adjacent well TW4-14 and the two orders of magnitude decrease in permeability south of TW4-4. However, as noted in previous reports, between the first quarter of 2010 and the second quarter of 2014, decreases in chloroform concentrations and the rate of water level rise at TW4-6 (located downgradient ofTW4-4) likely resulted from TW4-4 pumping. 36 Cones of depression associated with the nitrate pumping wells became evident as of the fourth quarter of 2013, and capture associated with the nitrate pumping is expected to continue to develop. Overall, the apparent capture area of the combined chloroform and nitrate pumping systems is smaller than last quarter, with capture decreasing within the central portion of the combined pumping system due primarily to decreased drawdowns at chloroform pumping well MW-26. 'Background' flow through the chloroform plume was calculated as approximately 3.4 gpm (See HGC, March 31, 2016: Corrective Action Comprehensive Monitoring Evaluation [CACME] Report, White Mesa Uranium Mill, Near Blanding, Utah). Pumping from wells within and immediately adjacent to the chloroform plume during the current quarter (from wells MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-22, TW4-24, TW4-37, TW4-39, TW4-40 and TW4-41) is approximately 4.3 gpm. The combined pumping rate of 4.3 gpm exceeds the calculated background flow by 0.9 gpm or 26 %, and is considered adequate at the present time. Chloroform concentrations at many of the wells with detected chloroform were within 20% of the values reported during the previous quarter, suggesting that variations are within the range typical for sampling and analytical error. Wells TW4-4, TW4-9, TW4-19, TW4-21 and TW4-40 had changes in concentration greater than 20%. Of these, TW4-4, TW4-19, TW4-21 and TW4- 40 are chloroform pumping wells; and TW 4-9 is located just outside the chloroform plume boundary. Fluctuations in concentrations at both chloroform and nitrate pumping wells and wells adjacent to pumping wells likely result in part from changes in pumping. In addition, fluctuations in concentrations are expected at wells located near the plume margins (such as TW4-9). Furthermore, changes in concentrations at chloroform wells are expected to result from continued operation of the nitrate pumping system, as the capture associated with nitrate pumping expands and flow directions change locally. Chloroform pumping wells MW-4 (1,030 µg/L); TW4-11 (2,630 µg/L); TW4-37 (9,620 µg/L); TW4-39 (3,440 µg/L); TW4-41 (1,050 µg/L); and nitrate pumping well TW4-22 (1,890 µg/L) had the highest detected chloroform concentrations. Since last quarter, the chloroform concentrations in MW-4 decreased from 1,050 to 1,030 µg/L; TW4-11 increased from 2,510 to 2,630 µg/L; TW4-37 increased from 8,160 to 9,620 µg/L; and TW4-39 increased from 3,330 to 3,440 µg/L. In addition, the chloroform concentration in chloroform pumping well TW4-21 decreased from 768 to 49.7 µg/L; the concentration in chloroform pumping well TW4-41 increased from 1,040 to 1,050 µg/L; the concentration in nitrate pumping well TW4-22 decreased from 2,180 to 1,890 µg/L; and the concentration in nitrate pumping well TW4-24 increased from 58.5 to 65.7 µg/L, remaining just outside the plume boundary this quarter. Nitrate pumping well TW4-25 remained non-detect. TW4-25, located north of TW4-21, bounds the chloroform plume to the north. Chloroform at TW4-8 (which was non-detect from the first quarter of 2008 through the fourth quarter of 2013) decreased from approximately 8.3 µg/L to approximately 7.4 µg/L, and remained outside the plume. TW4-8 is located immediately east of chloroform pumping well MW-4, where chloroform was detected at a concentration of 1,030 µg/L. Although the plume boundary remained between MW-4 and TW 4-8 from the first quarter of 2005 through the fourth 37 quarter of 2013, TW4-8 was re-incorporated into the plume between the first quarter of 2014 and the fourth quarter of 2019. Elevated chloroform at TW4-8 was bounded to the north by TW4-3 and TW4-38 (both non-detect), to the northeast by TW4-13 (non-detect), to the east by TW4-36 (non-detect), and to the southeast by TW4-14 (which has remained below 10 µg/L and is non- detect this quarter). Although previously elevated, TW4-8 has remained outside of and has bounded the plume since the end of 2019. Changes in the plume boundary near TW4-8 are expected to result from changes in pumping and reduced dilution resulting from cessation of water delivery to the northern wildlife ponds. Detectable chloroform concentrations at TW 4-14 (between the fourth quarter of 2014 and the first quarter of 2021; and during the third quarter of2022) and at TW4-27 (since the third quarter of 2015) are consistent with continued, but slow, downgradient migration of chloroform from the distal end of the plume (near TW4-29 and TW4-33) into the low permeability materials penetrated by TW4-14 and TW4-27. Chloroform at TW4-14 remained non-detect and chloroform at TW4-27 increased slightly from approximately 2.5 µg/L to 2.9 µg/L. Pumping at TW 4-41 is expected to reduce or prevent future migration of chloroform toward these wells. Concentration trends at TW4-29 (located at the southeastern extremity of the plume, to the east of TW4-26 and to the south of TW4-27); and at TW4-30 (located immediately east of TW4-29), are also generally consistent with ongoing, but slow, downgradient migration of chloroform. Although previously downgradient of TW4-29, due to long-term changes in water levels in this area, TW4-30 is now generally cross-gradient of TW4-29. Chloroform at TW4-29 decreased from 490 µg/L to 457 µg/L; and chloroform at TW4-30 increased slightly from approximately 47 µg/L to 48 µg/L, remaining just outside the plume. As discussed above, slow downgradient migration is consistent with the more than 30 quarters needed for chloroform exceeding 70 µg/L at TW4-29 to migrate approximately 160 feet to TW4-30 (although TW4-30 is again outside the plume). Chloroform at TW4-29 is bounded to the north by TW4-27 (approximately 2.9 µg/L), to the southeast by TW4-35 (approximately 1.4 µg/L), to the south by TW4-34 (non-detect), and to the west-northwest by TW4-6 (approximately 2.6 µg/L) and TW4-23 (non-detect). As discussed above, TW4-30 no longer bounded the plume immediately to the east and TW4-43 has acted as a new bounding well in this area; however, due to decreased concentrations, TW4-30 has bounded the plume to the east since the third quarter of 2022. In addition, generally increased concentrations at TW4-26 since the third quarter of 2016 are consistent with continuing downgradient chloroform migration, which is likely enhanced by the decay of the groundwater mound associated with the southern wildlife pond. Chloroform at TW4-33 (located between TW4-4 and TW4-29), which has remained below 70 µg/L since the first quarter of 2021, showed a slight decrease in concentration, from approximately 52 µg/L to approximately 51 µg/L. Chloroform at TW4-33 is bounded to the north by TW4-14 (non-detect), to the east by TW4-27 (approximately 2.9 µg/L), and to the west by TW4-6 (2.6 µg/L) and TW4-23 (non-detect). Although changes in concentration have occurred in wells within the chloroform plume, the boundaries of the plume have not changed significantly since the last quarter, except for a 38 contraction near TW 4-21. The contraction was due to chloroform concentration decreases at TW4-19 and TW4-21 , which brought TW4-21 outside the plume. As has been the case since the first quarter of 2020, due primarily to decreases in concentrations at TW4-6 and TW4-33, the kriging algorithm has 'pinched off' the southern extremity of the plume. TW4-9 remained outside the plume from the second quarter of 2019 through the first quarter of 2021; was temporarily re-incorporated within the plume during the second quarter of 2021; and remains outside the plume again this quarter. TW 4-9 was incorporated into the plume from the first quarter of 2016 until the first quarter of 2019 due to increased concentrations attributable to reduced recharge (and dilution) from the northern wildlife ponds. However, except for the fourth quarter of 2014, TW4-9 was outside the plume prior to the first quarter of 2016. TW4-38 was installed to the east-southeast of TW4-9 to serve as a bounding well when concentrations at TW 4-9 exceeded 70 µg/L. Nitrate pumping generally caused the western boundary of the northern portion of the chloroform plume to migrate to the west toward TW 4-24. Since the first quarter of 2014, TW 4- 24 has been both inside and outside the plume and is again just outside the plume this quarter. TW4-24 likely remained primarily outside the plume since 2014 due to initiation of TW4-37 pumping in the second quarter of 2015 and reduced productivity at TW4-24 (since the third quarter of 2014). Subsequent to the first quarter of 2014, generally increased concentrations at TW4-6 and TW4-16 (both of which were within the chloroform plume in the past), caused the plume boundary to migrate to the southwest and temporarily re-incorporate both wells. Increased concentrations at these wells subsequent to the first quarter of 2014 are likely related to reduced dilution from cessation of water delivery to the northern wildlife ponds and more westerly flow induced by nitrate pumping. In addition, concentrations at TW 4-6 are expected to be influenced by reduced recharge at the southern wildlife pond and the decay of the associated groundwater mound. Since 2014, TW 4-16 has been both within and outside the plume; whereas a decreasing trend in chloroform concentrations at TW4-6 (since the third quarter of 2015) has once again taken TW4- 6 outside the plume. This quarter, TW4-16 and TW4-6 remain within and outside the plume, respectively. Although chloroform at TW4-16 has been above and below 70 µg/L since 2014, and was detected at 182 µg/L this quarter, concentrations have generally increased since 2018, likely in response to reduced dilution. The decreasing trend in chloroform concentration at TW4-6 since the third quarter of 2015, and generally increased concentrations at TW 4-26 since the third quarter of 2016, suggest that TW 4- 4 pumping has arrested chloroform migration between TW 4-4 and TW 4-6, and that the increased chloroform at TW4-26 results from a remnant of the plume that continues to migrate south from TW4-6 to TW4-26. Pumping at adjacent well TW4-41 since the second quarter of 2018 has likely enhanced the decline in TW 4-6 concentrations to less than 70 µg/L. Although the nitrate pumping system may redistribute chloroform within the plume and cause changes in the chloroform plume boundaries, continued operation of the nitrate pumping system is expected to enhance capture associated with the chloroform pumping system. Furthermore, the addition of chloroform pumping wells TW4-1, TW4-2, TW4-11, TW4-21, TW4-37, TW4-39, 39 TW4-40 and TW4-41 since the beginning of 2015 is expected to have a beneficial impact. Generally reduced concentrations at TW 4-6 ( since the third quarter of 2015) and TW 4-16 ( since the fourth quarter of 2014) after previous increases are likely the result of initiation of TW4-1, TW4-2, and TW4-11 pumping. Continued operation of the original chloroform pumping wells (MW-4, MW-26, and TW4-19) is recommended. Pumping these wells, regardless of any short-term fluctuations in concentrations detected at the wells, helps to reduce downgradient chloroform migration by removing chloroform mass and reducing hydraulic gradients, thereby allowing natural attenuation to be more effective. Continued operation of chloroform pumping well TW4-4, augmented by pumping at adjacent well TW 4-41, is recommended to improve capture of chloroform to the extent practical in the southern portion of the plume. The overall decrease in chloroform concentrations at TW4-6 from 1,000 µg/L in the first quarter of 2010 to 10.3 µg/L in the second quarter of 2014 is likely related to pumping at TW4-4. The decrease in the long-term rate of water level rise at TW4-6 once TW4-4 pumping began, which suggests that TW4-6 is within the hydraulic influence of TW4-4, is also consistent with the decrease in chloroform concentrations at TW 4-6 between the first quarter of 2010 and the second quarter of 2014. The decreasing trend in water levels beginning in 2014 and, as noted above, the generally decreasing chloroform concentrations since the first quarter of 2015 at TW4-6 are also attributable in part to TW4-4 (augmented by TW4-41) pumpmg. Continued operation of chloroform pumping wells TW4-l, TW4-2, TW4-1 l, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 is also recommended because pumping these wells has increased overall capture and improved chloroform mass removal. In particular, continued pumping of TW4-37 (in conjunction with TW4-19) compensates for the loss of TW4-20; and pumping at TW 4-40 has expanded capture within the southern extremity of the plume. Furthermore, because of the influence of TW4-4 pumping (augmented by TW4-41 pumping since the second quarter of 2018), and by analogy with the concentration decreases at TW 4-6 and TW4-26 that occurred after initiation of TW4-4 pumping, chloroform concentrations at TW4-29 and TW4-33 have been expected to eventually trend downward. Since the third quarter of 2014, TW4-33 concentrations that have been relatively stable to decreasing; and TW4-29 concentrations that generally increased before becoming relatively stable to decreasing; appear consistent with these expectations. As discussed above, trends at these wells suggest that chloroform migration has been arrested at TW 4-3 3 by TW 4-4 ( and TW 4-41) pumping and that previously increasing chloroform at downgradient well TW4-29 resulted from a remnant of the plume that migrated past TW4-33 generally toward TW4-30, which until recently was downgradient of TW4-29, and which until the fourth quarter of 2020 bounded the plume to the east. As discussed above, due to concentration decreases since 2021, TW4-30 again bounds the plume to the east; and continued monitoring will determine whether it can function (as in the past) as a bounding well in the future. The influence of TW4-4 pumping at the distal end of the plume is consistent with decreasing water levels at both TW4-29 and TW4-33. Pumping at adjacent well TW4-41 has been expected 40 to help maintain or enhance these decreasing trends in water levels and to augment the expected eventual reductions in concentrations in the distal end of the plume. Continued evaluation of trends at TW4-29 and TW4-33 will be provided in subsequent quarters. EFRl and its consultants have raised the issues and potential effects associated with cessation of water delivery to the northern wildlife ponds in March, 2012 during discussions with DWMRC in March 2012 and May 2013. While past recharge from the ponds has helped limit many constituent concentrations within the chloroform and nitrate plumes by dilution, the associated groundwater mounding has increased hydraulic gradients and contributed to plume migration. Since use of the northern wildlife ponds ceased in March 2012, the reduction in recharge and decay of the associated groundwater mound has caused the expected decrease in hydraulic gradients and the increases in constituent concentrations within the chloroform plume. Generally increased chloroform concentrations at TW4-6 (between 2013 and 2020); and at TW4-8, TW4-9 and TW4-16 (since 2013), are likely related in part to reduced dilution (although concentrations at TW4-6 and TW4-8 have been trending downward since the first quarter of 2015; and concentrations at TW 4-9 have been trending generally downward since the first quarter of 2018). As discussed above, increased concentrations at TW4-26 since the third quarter of 2016 that are consistent with continuing downgradient chloroform migration are also likely enhanced by the decay of the groundwater mound associated with the southern wildlife pond. The net impact of reduced wildlife pond recharge has been expected to be beneficial even though it was also expected to result in (temporarily) higher concentrations that would persist until continued mass reduction via pumping and natural attenuation ultimately reduced concentrations. Temporary increases in chloroform concentrations have been judged less important than reduced chloroform migration rates. The evolution of the impacts of reduced recharge on concentrations and plume migration rates will be defined by continued monitoring. 9.0 ELECTRONIC DATA FILES AND FORMAT EFRl has provided to the Director an electronic copy of the laboratory results for groundwater quality monitoring conducted under the chloroform contaminant investigation during the quarter, in Comma Separated Values format. A copy of the transmittal e-mail is included under Tab M. 41 10.0 SIGNATURE AND CERTIFICATION This document was prepared by Energy Fuels Resources (USA) Inc. Energy Fuels Resources (USA) Inc. By: Scott A. Bakken Date Vice President, Regulatory Affairs 42 Certification: I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Scott A. Bakken Vice President, Regulatory Affairs Energy Fuels Resources (USA) Inc. 43 Tables Table 1: Summary of Well Sampling for the Period Well Sample Date Date of Lab Reoort MW-04 8/9/2023 8/24/2023 TW4-0I 8/9/2023 8/24/2023 TW4-02 8/9/2023 8/24/2023 TW4-03 9/13/2023 9/28/2023 TW4-04 8/9/2023 8/24/2023 TW4-05 9/14/2023 9/28/2023 TW4-06 9/14/2023 9/28/2023 TW4-07 9/27/2023 10/11/2023 TW4-08 9/14/2023 9/28/2023 TW4-09 9/14/2023 9/28/2023 TW4-IO 9/27/2023 10/11/2023 TW4-I I 8/9/2023 8/24/2023 TW4-l2 9/13/2023 9/28/2023 TW4-13 9/13/2023 9/28/2023 TW4-l4 9/13/2023 9/28/2023 MW-26 8/9/2023 8/24/2023 TW4-16 9/27/2023 10/11/2023 MW-32 9/26/2023 10/11/2023 TW4-18 9/14/2023 9/28/2023 TW4-19 8/9/2023 8/24/2023 TW4-21 8/9/2023 8/24/2023 TW4-22 8/9/2023 8/24/2023 TW4-23 9/13/2023 9/28/2023 TW4-24 8/9/2023 8/24/2023 TW4-25 8/9/2023 8/24/2023 TW4-26 9/27/2023 10/11/2023 TW4-27 9/14/2023 9/28/2023 TW4-28 9/13/2023 9/28/2023 TW4-29 9/27/2023 10/11/2023 TW4-30 9/14/2023 9/28/2023 TW4-30R 9/13/2023 9/28/2023 TW4-3I 9/13/2023 9/28/2023 TW4-32 9/13/2023 9/28/2023 TW4-33 9/14/2023 9/28/2023 TW4-34 9/14/2023 9/28/2023 TW4-35 9/13/2023 9/28/2023 TW4-36 9/13/2023 9/28/2023 TW4-36R 9/12/2023 9/28/2023 TW4-37 8/9/2023 8/24/2023 TW4-38 9/13/2023 9/28/2023 TW4-39 8/9/2023 8/24/2023 TW4-40 8/9/2023 8/24/2023 TW4-41 8/9/2023 8/24/2023 TW4-42 9/13/2023 9/28/2023 TW4-43 9/13/2023 9/28/2023 TW4-60 8/9/2023 8/24/2023 TW4-65 9/13/2023 9/28/2023 TW4-70 9/14/2023 9/28/2023 TW4-75 9/26/2023 10/11/2023 All sample locations were sampled for Chloroform, Carbon Tetrachloride, Chloromethane, Methylene Chloride, Chloride and Nitrogen. Date in parantheses is the date the analytical data package was resubmitted by the laboratory. The package was resubmitted to correct an error. "R" following a well number deisgnates a rinsate sample collected prior to purging of the well of that number. TW4-60 is a DI Field Blank, TW4-65 is a duplicate ofTW4-12, and TW4-70 is a duplicate ofTW4-05 and TW4-75 is a duplicate ofMW-32. Highlighted wells are continuously pumped. INDEX OF TABS Tab A Site Plan and Perched Well Locations White Mesa Site Tab B Order of Sampling and Field Data Worksheets Tab C Weekly and Monthly Depth to Water Data Tab D Kriged Current Quarter Groundwater Contour Map, Capture Zone Map, Capture Zone Details Map, and Depth to Water Data Tab E Kriged Previous Quarter Groundwater Contour Map Tab F Depths to Groundwater and Elevations and Hydrographs of Groundwater Elevations over Time for Chloroform Monitoring Wells Tab G Chloroform Mass Removed and Volume Pumped in Chloroform Pumping Wells over Time Tab H Laboratory Analytical Reports Tab I Quality Assurance and Data Validation Tables I-1 Field Data QA/QC Evaluation I-2 Holding Time Evaluation I-3 Receipt Temperature Check I-4 Analytical Method Check I-5 Reporting Limit Evaluation I-6 Trip Blank Evaluations I-7 QA/QC Evaluation for Sample Duplicates I-8 QC Control Limits for Analyses and Blanks I-9 Rinsate Check Tab J Kriged Current Quarter Chloroform Isoconcentration Map Tab K Analyte Concentration Data and Chloroform Concentration Trend Graphs over Time Tab L Contour Map Based Chloroform Plume Mass Calculations and Data Over Time Tab M CSV Transmittal Letter Tab N Exceedance Notices for the Reporting Period Tab A Site Plan and Perched Well Locations White Mesa Site Q\""' DR.-.n . , MW-418 perched monitoring well -<> installed April, 2023 TW4-43 ~ temporary perched monitoring well installed September, 2021 TWN-20 temporary perched nitrate monitoring Cl well installed April, 2021 MW-24A perched monitoring well installed • December 2019 TW4-42 ¢ temporary perched monitoring well installed April 2019 TW4-40 perched chloroform pumping well EB installed February 2018 TW4-19 EB perched chloroform or nitrate pumping well MW-5 • perched monitoring well TW4-12 0 temporary perched monitoring well TWN-7 temporary perched nitrate monitoring ~ well PIEZ-1 perched piezometer Q RUIN SPRING c!, seep or spring QR.q.~ • Olj~lO ~it, C1Fl>11 • OR!'I~ • M\'1'3A 01:!.•U i '• rt-•l29 . . - ,w,~ Cell ·1 n~d 1WN,1S' _,..,.,,,.., 0 .. lVltM~ rwfl,,~. • loW[l,01 .i,.,,ffl>ll<i</ ,w;,10 , ··~•P!'»l•d -ywf,c'9 ■h11do:,,1d 1'Wt ,os, TWl,20,wi/(j7 ,..,Jl8 • f.WNill~ piWd1 Ollffll!Jltll .0 • -w;~ ,~IJ'l-1• n,.il:.in. -« 'Mrl,o~ e . El , ;z7'TWN.112 0 /.Mill s. TWp ~~f ~ 1te ... ,11 - 'N~t , rw:i;21r1r TW ,li')~ 'dW'2i' _ . .J TW~I TW<t'~•~·,. '-GS '2-G • '··. li • 'fW '.' 4-'' • ' ,"'&'4-31,-..12 J cen.2 .•. MW::JO Cell 3 • 11MW,-,17 Ml"l-l!~~,_,,~ TW~~8 l:,'{i&.:Jl ,w4:_1l; ,N..,_i1 _ y-i•-u 'O .,,T~~i\u. .w.J?~~•.apw.-, .J-3.1 _ .,. ~{).01 'ti/()(!,:)? 'i,.,,.,,, ' .y"'~~-,\1-4•14 •· • • .i-oi() J-,8~'•4,_1, ..i:w-4,JW. W, ,0 0JW4'3.D ~~ TW•"iJ ·fr· fW4•0, TWM09 ~~ W ,1r.o+ ... p-- . PIEZ:-OS• • MW"'o d I, oi,s '~ D.R•'2-1 . , • .<t MW_,sg fl) •. ,. UJ • NW-~D I :e ,i,i\iJ.:li .,ILi '~ -----"--• ---,..~~~r • ..I -..... ~ .... ~ . MW.-2.2' ~. 41 . ' I 1 mUe HYDRO GED CHEM.INC. WHITE MESA SITE PLAN SHOWING LOCATIONS OF PERCHED WELLS AND PIEZOMETERS APPROVED DATE REFERENCE H:/718000/aug23/Uwelloc0923.srf FIG/jt:.1 TabB Order of Sampling and Field Data Worksheets Order of Contamination for 3rd Quarter 2023 Chloroform Purging Event Chlorofonn Well Sample tlme Levels Rlnsate date/time TW4-03 ,,~,Al l>bS5 ND TW4-42 '(/1~~ OJhS ND TW4-12 ~/13/23 Q1L5 ND ' TW4-28 'J/t\/M 0130 ND TW4-32 'l/13/2,3 Q7:S5 ND TW4-13 '1/j3/a3 01'0 ND TW4-36 ll/13{'A C:i15t> ND TW4-14 ijffl-/;} f S'l ND TW4-3l ___ 4._ _ J04 ND TW4-43 'l{dl4'l O~J'i ND ~~::~~ 47~ gtu : TW4-38 .,ij~/;,, 0 gql ND TW4-25 S/1/'A OS~ ND -MW-32 1 /.2.Ll;z:J tl~c) ND TW4-34 q /M/J3 07~ 1.2 TW4-06 1/l'i{.iL3 Oi.3't 2.3 TW4-27 cwi11.n D1'1~ 2.5 TW4-09 0.(N/J,3 0]55 5 TW4-05 o/111123 OJl/)1 8.1 TW4-08 q;Nf1.} Pf>'\5 8.3 TW4-30 1/1'!,/;..!, OJSS 47 TW4-33 47,401 ()'l,J 51.8 TW4-18 I ~ DUS 54.6 TW4-24 8/'f/.2') O'fOJ 58.5 TW4-40 iU,/-X) JO~ 220 -TW4-16 q/27/p c) "30 227 -TW4-J0~/l.i/.t)Ob38 322 -TW4-29 q/,-'f/'3 t»>'I.S 490 -TW 4-26 °i r(J::, O'r,58 659 -TW4-071j"V.t) 071X. 706 TW4-21 W,/~ Q~~-768 TW4-02 i(,C:1-3 0'151. 788 TW4-0l SI,/~ 10Og 830 TW4-41 &/1/~ )Qlfi 1040 MW-04 '&'9123 )QOD 1050 TW4-04 i)J/;1.3 I0~ 1980 TW4-22 g~:!t; gJ£ 2180 MW-26 8___ _ 2230 TW4-ll S/1/11 O'li.t5 2510 TW4-39 g/qb.3 O"'-" 3330 , TW4-I9 i/112.3 om 4850 TW4-37 §/'!/a5 ()1,l.O 8160 TW4--o0 TW4--o5 TW4-70 -TW4-75 Comments: D.I. Blank g/'j /:)3 011.{5 Duplicate f C\/ 13 /,23 0115 Duplicate q/fljW 01101 Duplicate "I far.,/3:!J fl 'lO Waler Well level Depth 141 86 101.5 107 115.1 102.5 99 1'\.l'i•.31.R. _ o, ll.2.DZ3 l'ZZO 93 106 97.9 87.5 114 112.75 134.8 Cont. Pumping 130.6 Bladder pump 97.2 97.5 96 120 120 125 .... ..., .... 30J. .. C>C\ 13:z.0~'3 l'Z. 'ii 1"2"\t 92.5 I 87.9 137.5 112.5 Cont. Pumping 86 Cont. Pumping 146.3 111 93.5 86 120 121 Cont. Pumping 120 Co.nt. Pumping I IO Cont. Pumping 97.75 Cont. Pumping 124 Cont. Pumping 112 Cont. Pumping 113.5 Cont. Pumping 122.5 Cont. Pumping 100 Cont.-Pumping 120 Cont. Pumping 125 Cont. Pumping 112 Cont. Pumping Groundwater Discharge Permit ~~ ... ~·-· ...... ---' \,·· - --.:.e -YFt<ELS Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID MW-04 Sampling Program Chloroform Monitoring Field Sample ID MW-04 08092023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 8/9/2023 9:59 Sample Date & Time 8/9/2023 10:00 [sampler TH/DL Purging Equipment Pump Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 24 Purging Method 2 Casings Previous Well Sampled TW4-02 Casing Volume (gal) 14.49 Calculated Casing Volumes Purge Duration () pH Buffer 7.0 7.0 Well Depth (ft) 123.60 pH Buffer 4.0 4.0 Well Casing Diameter (in) 3 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 84.11 Conductivity Dissolved Date/Time Gallons Purged (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 8/9/2023 9:59 1907 6.90 15.84 260 0 31.3 Pumping Rate Calculations ~olume <>f water purged () Flow Rate (Q = S/60) (gal/min) 4.0 Time to evacuate 2 Casing Volumes () [ Final Depth to Water (feet) 85.97 Number of casing Volumes Volume, if well evacuated to dryness O 0 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/ Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y Comments: [ Arrived on site at 0956. Samples collected at 1000. Water was clear. Left site at 1002. Signature of Field Technician --=:::':) , , en,><---f-/. · ~:~~) Groundwater Discharge Permit ~~F-y~ ~~ Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-01 Sampling Pro_gram Chloroform Monitoring Field Sample ID TW4-01 08092023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 8/9/2023 10:03 Sample Date & Time 8/9/2023 10:08 [sampler TH/DL Purging Equipment Pump Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 24 Purging Method 2 Casings Previous Well Sampled MW-04 Casing Volume (gal) 5.34 Calculated Casing Volumes Purge Duration () pH Buffer 7.0 7.0 Well Depth (ft) 111.30 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 103.11 Conductivity Dissolved Date/Time Gallons Purged (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 8/9/2023 10:08 2493 6.97 18.20 259 0 90.8 Pumping Rate Calculations [volume of water purged () Flow Rate (Q = S/60) (gal/min) 12.8 Time to evacuate 2 Casing Volumes () [ Final Depth to Water (feet) 110.02 Number of casing Volumes Volume, if well evacuated to dryness () 0 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? VOCs-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HDPE u H25O4 (pH<2), 4 Deg C y Comments: [ Arrived on site at 1004. Samples collected at 1008. Water was clear. Left site at 1010. Signature of Field Technician ~c', cn.r.-<.--/··/-~~) Groundwater Discharge Permit ~-~· ~e.--~.-~ Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-02 Sampling Program Chloroform Monitoring Field Sample ID TW4-02 08092023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 8/9/2023 9:51 Sample Date & Time 8/9/2023 9:52 ~a111pl er TH/DL Purging Equipment Pump Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 24 Purging Method 2 Casings Previous Well Sampled TW4-ll Casing Volume (gal) 13.47 Calculated Casing Volumes Purge Duration () pH Buffer 7.0 7.0 Well Depth (ft) 120.90 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 100.26 Conductivity Dissolved Date/Time Gallons Purged (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 8/9/2023 9:51 3922 6.72 17.10 308 0 74.2 Pum ping Rate Calculations !Volume of water purged () Flow Rate (Q = S/60) (gal/min) 16.00 Time to evacuate 2 Casing Volumes O [Final Depth to Water (feet) 117.44 Number of casing Volumes Volume, if well evacuated to dryness () 0 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/ Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y Comments: [ Arrived on site at 0948. Samples collected at 0952. Water was clear. Left site at 0954. Signature of Field Technician ~,,, c.n,•_L_,. cf-;/-,%'~) <:_~-' r~~~ ·-.;-'~~¥~ Location ID Field Sample ID Purge Date & Time Sample Date & Time Purging Equipment Pump Type Purging Method Casing Volume (gal) Calculated Casing Volumes Purge Duration (min) pH Buffer 7.0 pH Buffer 4.0 Specific Conductance (micromhos) Date/Time Gallons Purged (gal) 9/12/2023 7:46 73.33 9/13/2023 6:55 9/13/2023 6:56 [volume of water purged (gals) [ Final Depth to Water (feet) Name of Certified Analytical Laboratory AWSL Analytical Samples Information Type of Sample/Analysis voes-Chloroform Chloride Nitrate/nitrite as N Comments: Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater TW4-03 Sampling Program Chloroform Monitorin_g_ TW4-03_09132023 Sampling Event 2023 Q3 Chloroform 9/12/2023 7:40 9/13/2023 6:55 [sampler TH/DL Pump Weather Conditions Cloudy Grundfos External Ambient Temperature (C) 18 2 Casings Previous Well Sampled TW4-60 48.49 8.81 7.0 Well Depth (ft) 140.30 4.0 Well Casing Diameter (in) 4 1000 Depth to Water Before Purging {ft) 66.03 Conductivity Dissolved (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 1859 6.63 14.88 342 2.6 78.0 1774 6.70 15.64 Before 1777 6.69 15.60 After Pumpin_g Rate Calculations - 73.33 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 6.66 137.11 Number of casing Volumes 1.51 Volume, if well evacuated to dryness (gals) 73.33 Sample Container Preservative Collected? Matrix Number Type Sample Filtered? Type Added? y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y y WATER 1 500-ml Poly u None N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y Arrived on site at 0734. Purge began at 0740. Purged well for a total of 6 minutes and 40 seconds. Purged well dry. Water was clear. Purge ended at 0746. Left site at 0750. Arrived on site at 0650. Depth to water was 66.23. Samples bailed and collected at 0655. Left site at 0658. Signature of Field Technician ~ ,,,,,,·.-~~-/~,';_/;·::,.,::::, -~, ~ er,;: I--- -, --' ~Y.F:11:.AEZ..S" Location ID Field Sample ID Purge Date & Time Sample Date & Time Purging Equipment Pump Type Purging Method Casing Volume (gal) Calculated Casing Volumes Purge Duration () pH Buffer 7.0 pH Buffer 4.0 Specific Conductance (micromhos) Date/Time Gallons Purged 8/9/2023 10:2S !Volume of water purged() [Final Depth to Water (feet) Name of Certified Analytical Laboratory AWSL Analytical SamJ>les Information Type of Sample/Analysis voes-Chloroform Chloride Nitrate/nitrite as N Comments: Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater TW4-04 Sampling Program Chloroform Monitoring TW4-04 08092023 Sampling_ Event 2023 Q3 Chloroform 8/9/2023 10:24 8/9/2023 10:25 [sampler TH/DL Pump Weather Conditions Sunny Grundfos External Ambient Temperature (C) 24 2 Casings Previous Well Sampled TW4-41 23.58 7.0 Well Depth (ft) 114.50 4.0 Well Casing Diameter (in) 4 1000 Depth to Water Before Purging (ft) 78.38 Conductivity Dissolved (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 2387 7.08 17.07 298 0 97.0 Pumping Rate Calculations Flow Rate (Q = S/60) (gal/min) 16.00 Time to evacuate 2 Casing Volumes () 107.43 Number of casing Volumes Volume, if well evacuated to dryness () 0 Sample Container Preservative Collected? Matrix Number Type Sample Filtered? Type Added? y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y y WATER 1 500-ml Poly u None N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y [ Arrived on site at 1021 . Samples collected at 1025. Water was clear. Left site at 1027. Signature of Field Technician ~.,, ,,,,. __ c__ +-/-:~:%<~, ~ ........... ~ .. ~ --~-~_.,_ ~ Location ID Field Sample ID Purge Date & Time Sample Date & Time Purging Equipment Pump Type Purging Method Casing Volume (gal) Calculated Casing Volumes Purge Duration (min) pH Buffer 7.0 pH Buffer 4.0 Specific Conductance (micromhos) Date/Time Gallons Purged (gal) 9/13/2023 11:53 44.00 9/13/2023 11:54 55.00 9/13/2023 11:55 66.00 9/13/2023 11:56 77.00 [volume of water plJ_l'g_ed (gals) [Final Depth to Water (feet) Name of Certified Analytical Laboratory AWSL Analytical Samples Information Type of Sample/Analysis voes-Chloroform Chloride Nitrate/nitrite as N Comments: Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater TW4-05 Sampling Program Chloroform Monitoring TW4-05 09142023 Sampling Event 2023 Q3 Chloroform 9/13/2023 11:49 9/14/2023 8:07 [sampler TH/DL Pump Weather Conditions Partly cloudy Grundfos External Ambient Temperature (C) 21 2 Casings Previous Well Sampled TW4-09 31.57 5.74 7.0 Well Depth (ft) 121.85 4.0 Well Casing Diameter (in) 4 1000 Depth to Water Before Purging (ft) 73.50 Conductivity Dissolved (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 1612 6.66 15.75 315 2.4 62.3 1595 6.68 15.74 315 2.1 63.0 1585 6.70 15.72 315 2.0 62.4 1580 6.71 15.72 315 2.1 61.0 Pumping Rate Calculations 77.00 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 7.00 74.98 Number of casing Volumes 2.00 Volume, if well evacuated to dryness () 0 Sample Container Preservative Collected? Matrix Number Type Sample Filtered? Type Added? y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y y WATER 1 500-ml Poly u None N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y Arrived on site at 1144. Purge began at 1149. Purged well for a total of 7 minutes. Purge ended at 1156. Water was clear. Left site at 1159. Arrived on site at 0802. Depth to water was 73.48. Samples bailed and collected at 0807. Left site at 0810. Signature of Field Technician ~c,,~,V.-'~+-/-«~) Groundwater Discharge Permit ~ ·, , ~s··. /1_:---~-·,., .. ,. -~y~ -_ --~-. Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-06 Sampling Program Chloroform Monitoring Field Sample ID TW4-06 09142023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/13/2023 9:49 Sample Date & Time 9/14/2023 7:34 [sampler TH/Dl Purging Equipment Pump Weather Conditions Partly cloudy Pump Type Grundfos External Ambient Temperature (C) 18 Purging Method 2 Casings Previous Well Sampled TW4-34 Casing Volume (gal) 12.42 Calculated Casing Volumes Purge Duration (min) 2.25 pH Buffer 7.0 7.0 Well Depth (ft) 99.60 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 80.58 Conductivity Dissolved Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/13/2023 9:50 11.00 3846 6.50 15.55 310 12.4 5.9 9/14/2023 7:34 3835 6.58 14.75 Before 9/14/2023 7:35 3837 6.57 14.70 After !volume of water purged (gals) Pumpin9 Rate Calculations 11.00 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 1.00 !Final Depth to Water (feet) 95.89 Number of casing Volumes 0.88 Volume, if well evacuated to dryness (gals) 11.00 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? VOCs-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2). 4 Deg C y Comments: Arrived on site at 0945. Purge began at 0949. Purged well for a total of 1 minute. Purged well dry. Purge ended at 0950. Water was clear. Left site at 0953. Arrived on site at 0729. Depth to water was 80.86. Sameles bailed and collected at 0734. Left site at 0736. Signature of Field Technician ---------' -..//--; / ....__j_./._i~_r>._"'_,...~-;-;,,I:: . ._,.,G,. ~~) ~ ~::;-~ ~ 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) 9/26/2023 12:40 55.00 9/27/2023 7:06 9/27/2023 7:07 !Volume of water purged wals) [Final Depth to Water (feet) Name of Certified Analytical Laboratory AWSL Analytical Samples Information Type of Sample/Analysis VO Cs-Chloroform Chloride Nitrate/nitrite as N Comments: Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater TW4-07 Sampling Prog_ram Chloroform Monitoring TW4-07 09272023 Sampling Event 2023 Q3 Chloroform 9/26/2023 12:35 9/27/2023 7:06 [sampler TH/DL Pump Weather Conditions Sunny Grundfos External Ambient Temperature (C) 25 2 Casings Previous Well Sampled TW4-26 25.09 4.56 7.0 Well Depth (ft) 121.00 4.0 Well Casing Diameter (in) 4 1000 Depth to Water Before Purging (ft) 82.57 Conductivity Dissolved (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 1725 6.84 15.16 277 14.0 34.5 1745 6.98 13.87 Before 1748 6.98 13.89 After Pumping Rate Calculations 55.00 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 5.00 115.34 Number of casing Volumes 2.00 Volume, if well evacuated to dryness (gals) 55.00 Sample Container Preservative Collected? Matrix Number Type Sample Filtered? Type Added? y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y y WATER 1 500-mL Poly u None N y WATER 1 250-mL HOPE u H25O4 (pH<2), 4 Deg C y Arrived on site at 1231. Purge began at 1235. Purged well for a total of 5 minutes. Purged well dry. Purge ended at 1240. Water was mostly clear. Left site at 1244. Arrived on site at 0702. Depth to water was 85.77. Samples bailed and collected at 0706. Left site at 0708. Signature of Field Technician --------, _.,. //-/ ---__)", ""'.__'---; ,r ., -,_.c. ;;,:-, ,:") ~~--.... ~_ • .,-· • • ~Y,FUEZ.S Location ID Field Sample ID Purge Date & Time Sample Date & Time Purging Equipment Pump Type Purging Method Casing Volume (gal) Calculated Casing Volumes Purge Duration (min) pH Buffer 7.0 pH Buffer 4.0 Specific Conductance (micromhos) Date/Time Gallons Purged (gal) 9/13/2023 12:25 9/13/2023 12:26 9/13/2023 12:27 9/13/2023 12:28 IVolum_!_ of water pur9e~gals) [Final Depth to Water (feet) Name of Certified Analytical Laboratory AWSL Analytical Samples Information Type of Sample/Analysis VOCs-Chloroform Chloride Nitrate/nitrite as N Comments: 33.00 44.00 55.00 66.00 Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater TW4-08 Sampling Program Chloroform Monitoring TW4-08 09142023 Sampling Event 2023 Q3 Chloroform 9/13/2023 12:22 9/14/2023 8:45 !sampler TH/DL Pump Weather Conditions Partly cloudy Grundfos External Ambient Temperature (C) 21 2 Casings Previous Well Sampled TW4-05 26.67 4.85 7.0 Well Depth (ft) 126.20 4.0 Well Casing Diameter (in) 4 1000 Depth to Water Before Purging (ft) 85.35 Conductivity Dissolved (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 4538 6.46 15.28 320 0 1.2 4537 6.46 15.26 321 0 1.1 4535 6.46 15.23 321 0 1.0 4533 6.47 15.23 322 0 1.0 Pumping Rate Calculations 66.00 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 6.00 109.74 Number of casing Volumes 2.00 Volume, if well evacuated to dryness () 0 Sample Container Preservative Collected? Matrix Number Type Sample Filtered? Type Added? y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y y WATER 1 500-ml Poly u None N y WATER 1 250-ml HDPE u H2SO4 (pH<2). 4 Deg C y Arrived on site at 1218. Purge began at 1222. Purged well for a total of 6 minutes. Purge ended at 1228. Water was clear. Left site at 1231. Arrived on site at 0841 . Depth to water was 85.57. Samples bailed and collected at 0845. Left site at 0846. Signature of Field Technician ------• /.',: / -....__>~, '--''"-·'---l·::"''· -:..--/: d.'.':;"') Groundwater Discharge Permit 8lS.···~/.· :-~l .• .' f • ~Y.F-IUIEZ..S' ~l J Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-09 Sampling Program Chloroform Monitoring Field Sample ID TW4-09 09142023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/13/2023 10:50 Sample Date & Time 9/14/2023 7:55 [sampler TH/DL Purging Equipment Pump Weather Conditions Partly cloudy Pump Type Grundfos External Ambient Temperature (C) 20 Purging Method 2 Casings Previous Well Sampled TW4-27 Casing Volume (gal) 31.76 Calculated Casing Volumes Purge Duration (min) 5.77 pH Buffer 7.0 7.0 Well Depth (ft) 120.10 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 71.45 Conductivity Dissolved Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/13/2023 10:54 44.00 2438 6.55 15.25 299 22.0 2.0 9/13/2023 10:55 55.00 2427 6.55 15.25 299 23.0 2.0 9/13/2023 10:56 66.00 2418 6.56 15.24 298 24.0 1.9 9/13/2023 10:57 77.00 2416 6.56 15.22 297 23.5 1.9 Pumping Rate Calculations !Volume of water purged (gals) 77.00 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 7.00 [Final Depth to Water (feet) 73.01 Number of casing Volumes 2.00 Volume, if well evacuated to dryness () 0 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/ Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 1046. Purge began at 1050. Purged the well for a total of 7 minutes. Purge ended at 1057. Water was clear. Left site at 1100. Arrived on site at 0751. Depth to water was 71.48. Samples bailed and collected at 0755. Left site at 0756. Signature of Field Technician ~--~'. ~ :_J'_#,,._..,..,L_ -,I-;~, Groundwater Discharge Permit r--._.-::---::::::::e ··. 'F-. -,:i,,,t._"'". . , r.· -. j ..... .r', . -(__ ___ • . . ~y~ Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-10 Sampling_ Program Chloroform Monitoring Field Sample ID TW4-10_09272023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/26/2023 10:05 Sample Date & Time 9/27/2023 6:38 [sampler TH/DL Purging Equipment Pump Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 20 Purging Method 2 Casings Previous Well Sampled TW4-16 Casing Volume (gal) 27.64 Calculated Casing Volumes Purge Duration (min) 5.02 pH Buffer 7.0 7.0 Well Depth (ft) 113.20 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 70.86 Conductivity Dissolved Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/26/2023 10:08 38.50 2460 5.95 15.23 431 31.0 13.4 9/27/2023 6:38 2339 6.43 15.41 Before 9/27/2023 6:39 2345 6.43 15.37 After Pumping Rate Calculations [V<>lume of water purged (gals) 38.50 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 3.50 [Final Depth to Water (feet) 110.43 Number of casing Volumes 1.39 Volume, if well evacuated to dryness () 38.50 Name of Certified Analytical Laboratory_ .AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 1000. Purge began at 1005. Purged well for a total of 3 minutes and 30 seconds. Purged well dry. Purge ended at 1008. Water was a little murky. Left site at 1011 . Arrived on site at 0633. Depth to water was 70.85. Samples bailed and collected at 0638. Left site at 0640. Signature of Field Technician ~ . /-/ ------> ,, ,_,•,·--~-er;/.-._./.~-·-;-) Groundwater Discharge Permit c-~,t~ ~~r ~----=< ~ Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-11 Sampling Program Chloroform Monitoring Field Sample ID TW4-11 08092023 Sampling_ Event 2023 Q3 Chloroform Purge Date & Time 8/9/2023 9:45 Sample Date & Time 8/9/2023 9:45 [sampler TH/DL Purging Equipment Pump Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 24 Purging Method 2 Casings Previous Well Sampled MW-26 Casing Volume (gal) 7.12 Calculated Casing Volumes Purge Duration O pH Buffer 7.0 7.0 Well Depth (ft) 102.40 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 91.49 Conductivity Dissolved Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 8/9/2023 9:45 3703 6.72 19.30 260 0 95.0 !Volume of water purged() Pumping_ Rate Calculations Flow Rate (Q = S/60) (gal/min) 16.00 Time to evacuate 2 Casing Volumes () [ Final Depth to Water (feet) 100.01 Number of casing Volumes Volume, if well evacuated to dryness () 0 Name of Certified Analytical Laboratory AWSL AnalyUcal Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-mL Poly u None N Nitrate/nitrite as N y WATER 1 250-mL HDPE u H2SO4 (pH<2), 4 Deg C y Comments: I Arrived on site at 0940. Samples collected at 0945. Water was clear. Left site at 0947. Signature of Field Technician ~ ,, , ,_,,,·-~ -!-/-a~~} Groundwater Discharge Permit :»~,,--= Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-12 Sampling Program Chloroform Monitoring Field Sample ID TW4-12 09132023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/12/2023 9:39 Sample Date & Time 9/13/2023 7:15 !sampler TH/DL Purging Equipment Pump Weather Conditions Cloudy Pump Type Grundfos External Ambient Temperature (C) 19 Purging Method 2 Casings Previous Well Sampled TW4-42 Casing Volume (gal) 30.20 Calculated Casing Volumes Purge Duration (min) 5.49 pH Buffer 7.0 7.0 Well Depth (ft) 103.20 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 56.95 Conductivity Dissolved Date/Time Gallons Purged (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/12/2023 9:42 1488 7.00 15.36 339 4.0 48.0 9/13/2023 7:15 1411 7.11 14.58 Before 9/13/2023 7:17 1421 7.10 14.63 After Pumping Rate Calculations [volume of water purged (gals) 38.50 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 3.50 [ Final Depth to Water (feet) 100.20 Number of casing Volumes 1.27 Volume, if well evacuated to dryness (gals) 38.50 Name of Certified Analytica~aboratory AWSL Analytical Sll_mples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 0934. Purge began at 0939. Purged well for a total of 3 minutes and 30 seconds. Purged well dry. Purge ended at 0942. Water was clear. Left site at 0945. Arrived on site at 0710. Depth to water was 67.08. Sam_e_les bailed and collected at 0715.Left site at 0719. Signature of Field Technician ~u,'-"-•-<-+-/4~) Groundwater Discharge Permit ~S ..... '£·· ,- --------r_ . _, J' ~y ~ . . Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-13 Sampling Program Chloroform Monitoring_ Field Sample ID TW4-13 09132023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/12/2023 11:54 Sample Date & Time 9/13/2023 7:43 [sampler TH/DL Purging Equipment Pump Weather Conditions Cloudy Pump Type Grundfos External Ambient Temperature (C) 21 Purging Method 2 Casings Previous Well Sampled TW4-32 Casing Volume (gal) 31.16 Calculated Casing Volumes Purge Duration (min) 5.66 pH Buffer 7.0 7.0 Well Depth (ft) 105.70 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 57.98 Conductivity Dissolved Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/12/2023 11:58 44.00 2045 6.95 15.46 238 0 76.5 9/13/2023 7:43 2065 7.02 14.27 Before 9/13/2023 7:44 2077 7.01 14.30 After Pumping Rate Calculations [volume of water purged (gals) 44.00 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 4.00 [Final Depth to Water (feet) 102.77 Number of casing Volumes 1.41 Volume, if well evacuated to dryness (gals) 44.00 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/ Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 1150. Purge began at 1154. Purged well for a total of 4 minutes. Purge ended at 1158. Purged well dry. Water was clear. Left site at 1201 . Arrived on site at 0738. Depth to water was 58.04. Samples bailed and collected at 0743. Left site at 0745. Signature of Field Technician ~.,, en,.___"----J-;A -~~) Groundwater Discharge Permit c.-:;-,;.e-::-:-P£✓-.,i,:---,-~•·.• I ,. ·---~ /'• ~ . ./ f. .. ~ y~ Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-14 Sampling Program Chloroform Monitoring Field Sample ID TW4-14 09132023 Sampling_ Event 2023 Q3 Chloroform Purge Date & Time 9/12/2023 13:06 Sample Date & Time 9/13/2023 7:59 [sam_pler TH/DL Purging Equipment Pump Weather Conditions Raining Pump Type Grundfos External Ambient Temperature (C) 22 Purging Method 2 Casings Previous Well Sampled TW4-36 Casing Volume (gal) 11.55 Calculated Casing Volumes Purge Duration (min) 2.10 pH Buffer 7.0 7.0 Well Depth (ft) 95.10 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 77.40 Conductivity Dissolved Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/12/2023 13:07 14.66 5237 5.97 16.00 312 16.0 93.0 9/13/2023 7:59 5249 6.19 14.52 Before 9/13/2023 8:00 5264 6.20 14.57 After Pumping Rate Calculations [volu_m_e _of wc1ter purged (gals) 14.66 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 1.33 ]Final Depth to Water (feet) 92.31 Number of casing Volumes 1.26 Volume, if well evacuated to dryness (gals) 14.66 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 1302. Purge began at 1306. Purged well for a total of 1 minute and 20 seconds. Purged well dry. Purge ended at 1307. Water was a little murky. Left site at 1310. Arrived on site at 0754. Depth to water was 77 .51 . SamJ)les bailed and collected at 0759. Left site at 0801 . Signature of Field Technician ~,, ,,.,._,c __ -1:;---:--('/,1/.';) Groundwater Discharge Permit (.:xe· F-: .. ., .-· I t·· •• ·' ....... _...... /<· •• l' . •·• • ,/,· -·~YFTJEZS Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID MW-26 Sampling Program Chloroform Monitoring Field Sample ID MW-26 08092023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 8/9/2023 9:35 Sample Date & Time 8/9/2023 9:35 !Sampler TH/DL Purging Equipment Pump Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 23 Purging Method 2 Casings Previous Well Sampled TW4-39 Casing Volume (gal) 27.02 Calculated Casing Volumes Purge Duration () pH Buffer 7.0 7.0 Well Depth (ft) 121.33 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 79.95 Conductivity Dissolved Date/Time Gallons Purged (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 8/9/2023 9:35 3535 6.68 17.01 298 0 32.1 I Volume of w~ter 2urged 0 Pumping Rate Calculations Flow Rate (Q = S/60) (gal/min) 16.00 Time to evacuate 2 Casing Volumes () [Final Depth to Water (feet) 116.38 Number of casing Volumes Volume, if well evacuated to dryness () 0 Name of Certified Analytical Laboratory_ AWSL Analytical Saniples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform V WATER 3 40mlVOA u HCI {pH<2), 4 Deg C V Chloride V WATER 1 500-ml Poly u None N Nitrate/nitrite as N V WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C V Comments: I Arrived on site at 0931. Samples collected at 0935. Water was clear. Left site at 0937. Signature of Field Technician ~ ,,CJUA_,. -J--/ .-~;4) Groundwater Discharge Permit ~~~y~ Groundwater Monitoring Quality Assurance Plan ~ White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-16 Sampling Program Chloroform Monitoring Field Sample ID TW4-16 09272023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/26/2023 9:25 Sample Date & Time 9/27/2023 6:30 [sampler TH/DL Purging Equipment Pump Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 19 Purging Method 2 Casings Previous Well Sampled MW-32 Casing Volume (gal) 47.37 Calculated Casing Volumes Purge Duration (min) 8.61 pH Buffer 7.0 7.0 Well Depth (ft) 147.60 pH Buffer 4.0 4.0 Well Casin_g Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 75.05 Conductivity Dissolved Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/26/2023 9:32 77.00 3759 6.27 14.98 364 22.0 3.3 9/26/2023 9:33 88.00 3620 6.30 14.95 349 20.0 3.1 9/26/2023 9:34 99.00 3574 6.34 14.96 340 18.0 2.9 9/26/2023 9:35 110.00 3568 6.37 14.96 332 19.0 2.9 Pumping Rate Calculations !Volume of water purged (gals) 110.00 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 10.00 [Final Depth to Water (feet) 131.87 Number of casing Volumes 2.00 Volume, if well evacuated to dryness () 0 Name of Certified Analytical Laborator}'_ AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 0921. Purge began at 0925. Purged well for a total of 10 minutes. Purge ended at 0935. Water was a little murky. Left site at 0938. Arrived on site at 0625. Depth to water was 75.05. Samp_les bailed and collected at 0630. Left site at 0632. Signature of Field Technician ~ ,, ,,._._ '----.., -/ ;-'· --~ ~) Groundwater Discharge Permit 'F-' r:1 • -_. _ .. • ~y~ c;; Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID MW-32 Sampling Program Chloroform Monitoring Field Sample ID MW-32 09262023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/26/2023 6:30 Sample Date & Time 9/26/2023 11:30 !sampler TH/DL Purging Equipment Pump Weather Conditions Clear Pump Type QED External Ambient Temperature (C) 14 Purging Method 2 Casings Previous Well Sampled TW4-18 Casing Volume (gal) 30.76 Calculated Casing Volumes Purge Duration (min) 283.58 pH Buffer 7.0 7.0 Well Depth (ft) 130.60 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 83.48 Conductivity Dissolved Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/26/2023 11:27 64.44 3626 6.30 15.40 228 11.0 8.8 9/26/2023 11:28 64.66 3623 6.29 15.35 227 12.0 8.6 9/26/2023 11:29 64.88 3619 6.30 15.31 228 12.0 8.5 9/26/2023 11:30 65.10 3624 6.32 15.33 228 12.3 8.4 Pumping Rate Calculations !Volume of water purged (gals) 65.10 Flow Rate (Q = S/60) (gal/min) .217 Time to evacuate 2 Casing Volumes (min) 300.00 [Fina! Depth to Water (feet) 86.93 Number of casing Volumes 2.00 Volume, if well evacuated to dryness () 0 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y Comments: ~rrived on site at 0625. Purge began at 0630. Purged well for a total ()_f~00 minutes. Purge ended and samples collected at 113Q. WatEl_r was_§_ little murky. Left site at 1135. Signature of Field Technician ------, ,_ /;.--: / --.______) .,,,;__.r~ ... ----~-.r-:;/,.-.:.. r.., ...-c~) ~ 'e ,,~··., -____,,. ,/ . • • . JI ,·· • ~y~ , ' Location ID Field Sample ID Purge Date & Time Sample Date & Time Purging Equipment Pump Type Purging Method Casing Volume (gal) Calculated Casing Volumes Purge Duration (min) pH Buffer 7.0 pH Buffer 4.0 Specific Conductance (micromhos) Date/Time Gallons Purged (gal) 9/13/2023 14:19 55.00 9/13/2023 14:20 66.00 9/13/2023 14:21 77.00 9/13/2023 14:22 88.00 I volume of water purged (gals) [ Final Depth to Water (feet) Name of Certified Analytical Laboratory Analytical Samples Information Type of Sample/Analysis VOCs-Chloroform Chloride Nitrate/nitrite as N Comments: Sheet 24 of 49 White Mesa Mill Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plan Field Data Worksheet For Groundwater TW4-18 Sampling Program Chloroform Monitoring TW4-18 09142023 Samp~n_g Event 2023 Q3 Chloroform 9/13/2023 14:14 9/14/2023 9:35 [sampler TH/DL Pump Weather Conditions Partly cloudy Grundfos External Ambient Temperature (C) 21 2 Casings Previous Well Sampled TW4-33 40.71 7.40 7.0 Well Depth (ft) 136.90 4.0 Well Casing Diameter (in) 4 1000 Depth to Water Before Purging (ft) 74.55 Conductivity Dissolved (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 2168 6.43 15.58 359 10.2 10.5 2173 6.43 15.60 359 10.0 11.4 2127 6.40 15.50 359 11.0 9.7 2106 6.42 15.60 359 11.0 9.8 Pumping Rate Calculations 88.00 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 8.00 76.11 Number of casing Volumes 2.00 Volume, if well evacuated to dryness () 0 Sample Container Preservative Collected? Matrix Number Type Sample Filtered? Type Added? y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y y WATER 1 500-ml Poly u None N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y Arrived on site at 1409. Purge began at 1414. Purged well for a total of 8 minutes. Purge ended at 1422. Water was clear. Left site at 1425. Arrived on site at 0931. Depth to water was 7 4.56. Samples bailed and collected at 0935. Left site at 0936. Signature of Field Technician ~c,,,_n,__-,_.-J·/-~~~) Groundwater Discharge Permit ~.->-e · ,,;::,.·. -' .-. ' .. :, -' ' -~ ' ~-c ' , ~· ~y~ Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-19 Sampling_Program Chloroform Monitoring Field Sample ID TW4-19 08092023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 8/9/2023 7:24 Sample Date & Time 8/9/2023 7:25 [sampler TH/DL Purging Equipment Pump Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 17 Purging Method 2 Casings Previous Well Sampled N/A Casing Volume (gal) 33.21 Calculated Casing Volumes Purge Duration () pH Buffer 7.0 7.0 Well Depth (ft) 126.86 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 75.99 Conductivity Dissolved Date/Time Gallons Purged (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 8/9/2023 7:25 2807 6.62 16.28 394 0 34.0 !volume of water purged () Pumping_ Rate Calculations Flow Rate (Q = S/60) (gal/min) 15.00 Time to evacuate 2 Casing Volumes () !Final Depth to Water (feet) 78.23 Number of casing Volumes Volume, if well evacuated to dryness () 0 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? VOCs-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-mL Poly u None N Nitrate/nitrite as N y WATER 1 250-mL HDPE u H2SO4 (pH<2), 4 Deg C y Comments: [ Arrived on site at 0720. Samples collected at 0725. Water was clear. Left site at 0727. Signature of Field Technician ~ ,,.,,,><-.1-;:,'; -~,:?-~) Groundwater Discharge Permit ~.-~~,.:·~~· ~.-~YFLIEZ..S Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-21 Sampling Program Chloroform Monitoring Field Sample ID TW4-21 08092023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 8/9/2023 8:43 Sample Date & Time 8/9/2023 8:44 !sampler TH/DL Purging Equipment Pump Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 20 Purging Method 2 Casings Previous Well Sampled TW4-60 Casing Volume (gal) 29.12 Calculated Casing Volumes Purge Duration () pH Buffer 7.0 7.0 Well Depth (ft) 118.80 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 74.20 Conductivity Dissolved Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 8/9/2023 8:44 2560 6.66 16.44 363 0 36.0 I Volume of water pur_g_edJ~ Pumping_ Rate Calculations Flow Rate (Q = S/60) (gal/min) 16.00 Time to evacuate 2 Casing Volumes () I Final Depth to Water (feet) 80.33 Number of casing Volumes Volume, if well evacuated to dryness () 0 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/ Analysis Collected? Matrix Number Type Sample Filtered? Type Added? VOCs-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y Comments: [ Arrived on site at 0840. Samples collected at 0844. Water was clear. Left site at 0846. Signature of Field Technician ~ , , ' -'>' -~--/-;/--~ ~0-) Groundwater Discharge Permit ~e -/:·· ... ~.\-.. • ,.. ~~-I ·-·_/,·· ~Y.F:Ll'ill!::Z.S Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-22 Sampling Program Chloroform Monitoring Field Sample ID TW4-22_08092023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 8/9/2023 9:10 Sample Date & Time 8/9/2023 9:11 [sampler TH/DL Purging Equipment Pump Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 21 Purging Method 2 Casings Previous Well Sampled TW4-24 Casing Volume (gal) 29.56 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) 69.42 Conductivity Dissolved Date/Time Gallons Purged (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 8/9/2023 9:07 5289 6.15 16.35 308 0 31.2 !Volume of water purged U Pumping Rate Calculations Flow Rate (Q = S/60) (gal/min) 16.00 Time to evacuate 2 Casing Volumes () [Fin!! D~pth to Water (feet) 101.25 Number of casing Volumes Volume, if well evacuated to dryness O 0 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y Comments: [ Arrived on site at 0907. Samples collected at 0911. Water was clear. Left site at 0913. Signature of Field Technician --==:L, ,on,._,_ -,~,'c-:::'/~ < Groundwater Discharge Permit r--~ ' ~~e~-.-~·· , --.,., :'• :, _. ., I • ' /., ,' ~YF"LREL:S Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-23 Sampling Program Chloroform Monitoring Field Sample ID TW4-23 09132023 Sam_eling Event 2023 Q3 Chloroform Purge Date & Time 9/12/2023 15:37 Sample Date & Time 9/13/2023 8:32 [sampler TH/DL Purging Equipment Pump Weather Conditions Cloudy Pump Type Grundfos External Ambient Temperature (C) 22 Purging Method 2 Casings Previous Well Sampled TW4-35 Casing Volume (gal) 25.62 Calculated Casing Volumes Purge Duration (min) 4.65 pH Buffer 7.0 7.0 Well Depth (ft) 116.40 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 77.16 Conductivity Dissolved Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/12/2023 15:41 44.00 3433 6.62 14.58 221 1.5 13.5 9/12/2023 15:42 55.00 3419 6.65 14.60 212 2.0 13.8 9/12/2023 15:43 66.00 3432 6.67 14.59 207 1.9 15.0 9/12/2023 15:44 77.00 3434 6,67 14.75 206 2.0 16.0 Pumping Rate Calculations !Volume of water purged (gals) 77.00 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 7.00 !Final Depth to Water (feet) 101.46 Number of casing Volumes 2.00 Volume, if well evacuated to dryness () 0 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/ Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform V WATER 3 40ml VOA u HCI (pH<2), 4 Deg C V Chloride V WATER 1 500-ml Poly u None N Nitrate/nitrite as N V WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C V Comments: Arrived on site at 1533. Purge began at 1537. Purged well for a total of 7 minutes. Purge ended at 1544. Water was mostly clear, Left site at 1547. Arrived on site at 0828, Depth to water was 77,26. Samples bailed and collected at 0832, Left site at 0833, Signature of Field Technician ---_____ ).,, '''-'-~---/-;/, -:"/':.0) Groundwater Discharge Permit g;j:' ~_ ... --· t£-... ·' .' .... • ✓ , ~· J ' .' / .·• ~y~ Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-24 Sampling Prog_ram Chloroform Monitoring Field Sample ID TW4-24 08092023 Sampling_ Event 2023 Q3 Chloroform Purge Date & Time 8/9/2023 9:02 Sample Date & Time 8/9/2023 9:03 [Sampler TH/DL Purging Equipment Pump Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 21 Purging Method 2 Casings Previous Well Sampled TW4-25 Casing Volume (gal) 29.92 Calculated Casing Volumes Purge Duration () pH Buffer 7.0 7.0 Well Depth (ft) 114.80 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 68.97 Conductivity Dissolved Date/Time Gallons Purged (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 8/9/2023 9:03 7089 6.62 16.21 287 0 21.9 Pumping Rate Calculations [volume of water purged () Flow Rate (Q = S/60) (gal/min) 16.00 Time to evacuate 2 Casing Volumes () [Final Depth to Water (feet) 93.51 Number of casing Volumes Volume, if well evacuated to dryness () 0 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? VOCs-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y Comments: I Arrived on site at 0859. Samples collected at 0903. Water was clear. Left site at 0905. Signature of Field Technician ~ '/,a'~ -.___J , , ,_,,.,, -"--l--/c -'-_c'; ~ >) ~~-· _:-~0..--~YFL#EZ.S Location ID Field Sample ID Purge Date & Time Sample Date & Time Purging Equipment Pump Type Purging Method Casing Volume (gal) Calculated Casing Volumes Purge Duration () pH Buffer 7.0 pH Buffer 4.0 Specific Conductance (micromhos) Date/Time 8/9/2023 8:53 !Volume of water purged () jFinal Depth to Water (feet) Gallons Purged Name of Certified Analytical Laboratory AWSL Analytical Samples Information Type of Sample/Analysis VOCs-Chloroform Chloride Nitrate/nitrite as N Comments: Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater TW4-25 Sampling Program Chloroform Monitoring TW4-25 08092023 Sampling Event 2023 Q3 Chloroform 8/9/2023 8:52 8/9/2023 8:53 [sampler TH/DL Pump Weather Conditions Sunny Grundfos External Ambient Temperature (C) 20 2 Casings Previous Well Sampled TW4-21 42.87 7.0 Well Depth (ft) 136.70 4.0 Well Casing Diameter (in) 4 1000 Depth to Water Before Purging (ft) 71.04 Conductivity Dissolved (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 2447 6.87 16.31 294 9.0 79.8 Pumping Rate Calculations Flow Rate (Q = S/60) (gal/min) 14.00 Time to evacuate 2 Casing Volumes () 115.34 Number of casing Volumes Volume, if well evacuated to dryness () 0 Sample Container Preservative Collected? Matrix Number Type Sample Filtered? Type Added? y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y y WATER 1 500-ml Poly u None N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y [ Arrived on site at 0848. Samples collected at 0853. Water was clear. Left site at 0855. Signature of Field Technician ~ , , ,,,,-_,L__, -f-/--¾~) Groundwater Discharge Permit ~.~ .•• ~l •• • y~ a::-:....,.~~ Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-26 Sampling Prog_ram Chloroform Monitoring Field Sample ID TW4-26 09272023 Sampling_ Event 2023 Q3 Chloroform Purge Date & Time 9/26/2023 12:02 Sample Date & Time 9/27/2023 6:58 [sampler TH/DL Purging Equipment Pump Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 23 Purging Method 2 Casings Previous Well Sampled TW4-29 Casing Volume (gal) 7,86 Calculated Casing Volumes Purge Duration (min) 1.43 pH Buffer 7.0 7.0 Well Depth (ft) 87.70 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 75.65 Conductivity Dissolved Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/26/2023 12:02 8.25 4568 6.71 16.45 271 4.6 74.8 9/27/2023 6:58 4830 6.60 13.80 Before 9/27/2023 6:59 4832 6.61 13.85 After !volume of water purged (gals) 8.25 Pumi:>ing Rate Calculations Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 0.75 !Final Depth to Water (feet) 84.98 Number of casing Volumes 1.04 Volume, if well evacuated to dryness (gals) 8.25 Name of Certified Analytical Laborato~ AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 1157. Purge began at 1202. Purged well for a total of 45 seconds. Purged well dry. Purge ended at 1202. Water was mostly clear. Left site at 1205. Arrived on site at 0654. Depth to water was 75 .88. Samples bailed and collected at 0658. Left site at 0700. Signature of Field Technician ~ , , '-MA---!-;/.-::"/~) Groundwater Discharge Permit ~~----··'£·. ~ • : ~ y ---). /' ,ti Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-27 Sampling Pr-_o_gram Chloroform Monitoring Field Sample ID TW4-27 09142023 Sampling_ Event 2023 Q3 Chloroform Purge Date & Time 9/13/2023 10:21 Sample Date & Time 9/14/2023 7:43 [sampler TH/DL Purging Equipment Pump Weather Conditions Partly cloudy Pump Type Grundfos External Ambient Temperature (C) 19 Purging Method 2 Casings Previous Well Sampled TW4-06 Casing Volume (gal) 10.64 Calculated Casing Volumes Purge Duration (min) 1.93 pH Buffer 7.0 7.0 Well Depth (ft) 95.75 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 79.45 Conductivity Dissolved Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/ After 9/13/2023 10:22 11.00 5093 6.08 16.02 323 13.0 69.3 9/14/2023 7:43 5021 6.05 14.75 Before 9/14/2023 7:44 5029 6.06 14.72 After Pumping Rate Calculations [volume of water purged (gals) 11.00 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 1.00 [Final Depth to Water (feet) 93.42 Number of casing Volumes 1.03 Volume, if well evacuated to dryness (gals) 11.00 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 1017. Purge began at 1021. Purged well for a total of 1 minute. Purged well dry. Purge ended at 1022. Water was clear. Left site at 1025. Arrived on site at 0739. Depth to water was 79.75. Samples bailed and collected at 0743. Left site at 0745. Signature of Field Technician Groundwater Discharge Permit ..... ~. -..... -• -~ . ~. --.-· . -.~~~ ~.-~y~ Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-28 Sampling Program Chloroform Monitoring Field Sample ID TW4-28 09132023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/12/2023 10:14 Sample Date & Time 9/13/2023 7:30 [sampler TH/DL Purging Equipment Pump Weather Conditions Cloudy Pump Type Grundfos External Ambient Temperature (C) 20 Purging Method 2 Casings Previous Well Sampled TW4-12 Casing Volume (gal) 37.79 Calculated Casing Volumes Purge Duration (min) 6.87 pH Buffer 7.0 7.0 Well Depth (ft) 108.48 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 50.60 Conductivity Dissolved Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/12/2023 10:18 49.50 1543 7.05 15.18 341 2.9 90.0 9/13/2023 7:30 1549 7.03 14.20 Before 9/13/2023 7:31 1550 7.03 14.16 After [volume of water purged (gals) Pumping_ Rate Calculations 49.50 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 4.50 [Final Depth to Water (feet) 105.08 Number of casing Volumes 1.30 Volume, if well evacuated to dryness (gals) 49.50 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/ Analysis Collected? Matrix Number Type Sample Filtered? Type Added? VO Cs-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 1010. Purge began at 1014. Purged well for a total of 4 minutes and 30 seconds. Purged well dry. Purge ended at 1018. Water was clear. Left site at 1021. Arrived on site at 0725. Dept_h to water was 50.68. Samples bailed and collected at 0730. Left site at 0732. Signature of Field Technician -------. . -: / -----> , , . ,, ... ·=---!-/ -:t::;.,.,?) Groundwater Discharge Permit ~~--PF-'' ' C::;~:~ ' I "' -~.· :'~y~ / I .I Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-29 Sampling P_l'_ogram Chloroform Monitoring Field Sample ID TW4-29 09272023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/26/2023 10:38 Sample Date & Time 9/27/2023 6:48 jsample.r TH/DL Purging Equipment Pump Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 21 Purging Method 2 Casings Previous Well Sampled TW4-10 Casing Volume (gal) 9.57 Calculated Casing Volumes Purge Duration (min) 1.74 pH Buffer 7.0 7.0 Well Depth (ft) 94.48 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 79.82 Conductivity Dissolved Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/26/2023 10:38 8.25 4056 6.60 16.45 437 3.1 91.2 9/27/2023 6:48 3939 6.83 14.58 Before 9/27/2023 6:49 3950 6.84 14.55 After Pumping Rate Calculations [volume of water purged (gals) 8.25 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 0.75 [Final Depth to Water (feet) 92.33 Number of casing Volumes 0.86 Volume, if well evacuated to dryness (gals) 8.25 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? VOCs-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-mL Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 1033. Purge began at 1038. Purged well for a total of 45 seconds. Purged well dry. Water was clear. Purge ended at 1038. Left site at 1041. Arrived on site at 0644. Depth to water was 79.80. Samples bailed and collected at 0648. Left site at 0650. Signature of Field Technician ~-J '''"-'--<.--J-/ -~~ Groundwater Discharge Permit ~~m-.s Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-30 Sampling Program Chloroform Monitoring Field Sample ID TW4-30 09142023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/13/2023 13:01 Sample Date & Time 9/14/2023 8:55 [sampler TH/DL Purging Equipment Pump Weather Conditions Partly cloudy Pump Type Grundfos External Ambient Temperature (C) 22 Purging Method 2 Casings Previous Well Sampled TW4-08 Casing Volume (gal) 11.81 Calculated Casing Volumes Purge Duration (min) 2.14 pH Buffer 7.0 7.0 Well Depth (ft) 93.48 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 75.38 Conductivity Dissolved Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/13/2023 13:02 14.66 4444 5.72 15.90 393 11.0 37.0 9/14/2023 8:55 4372 5.87 14.87 Before 9/14/2023 8:56 4389 5.88 14.85 After Pumping Rate Calculations I Volume of water purged (gals) 14.66 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 1.33 [Final Depth to Water (feet) 91.02 Number of casing Volumes 1.24 Volume, if well evacuated to dryness (gals) 14.66 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 1257. Purge began at 1301. Purged well for a total of 1 minute and 20 seconds. Purged well dry. Purge ended at 1302. Water was clear. Left site at 1305. Arrived on site at 0851. Depth to water was 75.46. Samples bailed and collected at 0855. Left site at 0857. Signature of Field Technician ~ ,, , CMA----,',,,le -a~) Groundwater Discharge Permit --~ ,,..--. L--..... _. • . -. ~ ~~y Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-30R Sampling Program Field Sample ID TW4-30R 09132023 Sampling Event 2023 Q3 Chloroform Purge Date & Time Sample Date & Time 9/13/2023 12:48 [sampler TH/DL Purging Equipment Weather Conditions Pump Type External Ambient Temperature () Purging Method Previous Well Sampled Casing Volume () Calculated Casing Volumes Purge Duration () pH Buffer 7.0 Well Depth (ft) pH Buffer 4.0 Well Casing Diameter () Specific Conductance () Depth to Water Before Purging (ft) Conductivity Dissolved Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/13/2023 12:47 133.00 3.0 7.64 21.30 283 0 21.2 Pumping Rate Calculations I Volume of water purged() Flow Rate (Q = S/60) () Time to evacuate 2 Casing Volumes () [ Finc1I D_epth to Water (feet) Number of casing Volumes Volume, if well evacuated to dryness () Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 lpH<2), 4 Deg C y Comments: Signature of Field Technician ~ . • . .,,,,-:-: ./ ______, , .. ,,,.,. __ ,.____ -1-;/. -:..C. d---) <. Groundwater Discharge Permit 2 -,----::...-..~/ ---I.. . . ' ... -_-i ) B -.-~ Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-31 Sampling Program Chloroform Monitoring Field Sample ID TW4-31 09132023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/12/2023 13:55 Sample Date & Time 9/13/2023 8:06 [sampler TH/DL Purging Equipment Pump Weather Conditions Raining Pump Type Grundfos External Ambient Temperature (C) 22 Purging Method 2 Casings Previous Well Sampled TW4-14 Casing Volume (gal) 20.39 Calculated Casing Volumes Purge Duration (min) 3.70 pH Buffer 7.0 7.0 Well Depth (ft) 107.48 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 76.25 Conductivity Dissolved Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/12/2023 13:57 25.66 3580 6.73 15.69 322 18.0 25.0 9/13/2023 8:06 3678 6.90 14.60 Before 9/13/2023 8:07 3680 6.89 14.63 After [volume of water purged (gals) Pumping Rate Calculations 25.66 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 2.33 jFinal~Deptf! to~ Vlfater (feet) 105.46 Number of casing Volumes 1.25 Volume, if well evacuated to dryness (gals) 25.66 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? VOCs-Chloroform y WATER 3 40ml VOA u HCI {pH<2), 4 Deg C y Chloride y WATER 1 500-mL Poly u None N Nitrate/nitrite as N y WATER 1 250-mL HDPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 1351. Purge began at 1355. Purged well for a total of 2 minutes and 20 seconds. Purged well dry. Purge ended at 1357. Water was a little murky. Left site at 1400. Arrived on site at 0802. Depth to water was 76.32. Samples bailed and collected at 0806. Left site at 0808. Signature of Field Technician ~", er<;_,:_,+,/-«~ Groundwater Discharge Permit ~e-~i -,-, . ·--, ~YFLIEZ...S Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-32 Sampling Program Chloroform Monitoring Field Sample ID TW4-32 09132023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/12/2023 10:51 Sample Date & Time 9/13/2023 7:35 [sampler TH/DL Purging Equipment Pump Weather Conditions Raining Pump Type Grundfos External Ambient Temperature (C) 20 Purging Method 2 Casings Previous Well Sampled TW4-28 Casing Volume (gal) 37.26 Calculated Casing Volumes Purge Duration (min) 6.77 pH Buffer 7.0 7.0 Well Depth (ft) 114.64 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 57.58 Conductivity Dissolved Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/12/2023 10:55 44.00 5939 3.92 15.10 473 21.0 1.2 9/12/2023 10:56 55.00 5876 3.90 15.08 477 20.2 1.0 9/12/2023 10:57 66.00 5905 3.90 15.06 480 20.0 1.0 9/12/2023 10:58 77.00 5943 3.89 15.04 481 19.0 1.0 Pumping Rate Calculations [V<>lume of water purged (gals) 77.00 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 7.00 I Final Depth to Water (feet) 97.36 Number of casing Volumes 2.00 Volume, if well evacuated to dryness () 0 Name of Certified Analytical Laboratory_ AWSL Analyt_ical Samples Information Sample Container Sample Preservative Type of Sample/Analysis Collected? Matrix Number Type Filtered? Type Added? voes-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 1047. Purge began at 1051. Purged well for a total of 7 minutes. Purge ended at 1058. Water was a little murky. Pump and hose had white salt like particles on them when pulled. Left site at 1101. Arrived on site at 0732. Depth to water was 57 .50. Samples bailed and collected at 0735. Left site at 0736. Signature of Field Technician ~ ,, :...,,.._,____ -/-/--/4~) c-:;:-, -· . ' v~ -!F-:-.· ~~~~ c::.~ Location ID Field Sample ID Purge Date & Time Sample Date & Time Purging Equipment Pump Type Purging Method Casing Volume (gal) Calculated Casing Volumes Purge Duration (min) pH Buffer 7.0 pH Buffer 4.0 Specific Conductance (micromhos) Date/Time Gallons Purged (gal) 9/13/2023 13:34 3.66 9/14/2023 9:21 9/14/2023 9:22 !Volume of water purged (gals) [ Final Depth to Water (feet) Name of Certified Analytical Laboratory AWSL Analytical Samples Information Type of Sample/Analysis VOCs-Chloroform Chloride Nitrate/nitrite as N Comments: Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater TW4-33 Sampling Program Chloroform Monitoring TW4-33 09142023 Sampling Event 2023 Q3 Chloroform 9/13/2023 13:34 9/14/2023 9:21 !sampler TH/DL Pump Weather Conditions Raining Grundfos External Ambient Temperature (C) 22 2 Casings Previous Well Sampled TW4-30 4.38 0.79 7.0 Well Depth (ft) 86.23 4.0 Well Casing Diameter (in) 4 1000 Depth to Water Before Purging (ft) 79.52 Conductivity Dissolved (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 1.7 6.25 22.73 375 22.9 54.7 4750 6.96 14.87 Before 4766 6.97 14.85 After Pumping Rate Calculations 3.66 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 0.33 84.21 Number of casing Volumes 0.83 Volume, if well evacuated to dryness (gals) 3.66 Sample Container Sample Preservative Collected? Matrix Number Type Filtered? Type Added? y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y y WATER 1 500-ml Poly u None N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y Arrived on site at 1329. Purge began at 1334. Purged well for a total of 20 seconds. Purged well dry. Not enough water to get accurate parameters from hydrolab. Purge ended at 1334. Left site at 1337. Arrived on site at 0917. Depth to water was 80.42. Samples bailed and collected at 0921. Left site at 0923. Signature of Field Technician ----.. .J--./ _,/,,/; / .....____Ju,,,,,.__~-.-,:,-,-•,,'O_~~>, <~' Groundwater Discharge Permit ~-~e-~ ~~---I, • ___.:;· /,' t ' • '~YFLIEL.S ,. ' Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-34 Sampling Program Chloroform Monitoring Field Sample ID TW4-34 09142023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/13/2023 9:17 Sample Date & Time 9/14/2023 7:20 !sampler TH/DL Purging Equipment Pump Weather Conditions Partly cloudy Pump Type Grundfos External Ambient Temperature (C) 17 Purging Method 2 Casings Previous Well Sampled TW4-38 Casing Volume (gal) 11.53 Calculated Casing Volumes Purge Duration (min) 2.09 pH Buffer 7.0 7.0 Well Depth (ft) 95.74 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 78.08 Conductivity Dissolved Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/13/2023 9:18 14.66 3637 6.80 15.40 165 8.5 39.0 9/14/2023 7:20 3249 6.90 15.55 Before 9/14/2023 7:21 3265 6.90 15.50 After Pumping Rate Calculations - [volume of water purged (gals) 14.66 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 1.33 [ Final Depth to Water (feet) 93.57 Number of casing Volumes 1.27 Volume, if well evacuated to dryness (gals) 14.66 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 0913. Purge began at 0917. Purged well for a total of 1 minute and 20 seconds. Purged well dry. Purge ended at 0918. Water was clear. Left site at 0921. Arrived on site at 0716. Depth to water was 78.03. Samples bailed and collected at 0720. Left site at 0722. Signature of Field Technician ---=----) ,, ,,,._c--.r'--:"'--~S/, <-) Groundwater Discharge Permit ~~. ._--..--• . y~ --~ ~ ' . Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-35 Sampling Program Chloroform Monitoring Field Sample ID TW4-35 09132023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/12/2023 15:09 Sample Date & Time 9/13/2023 8:22 [s ampler TH/DL Purging Equipment Pump Weather Conditions Cloudy Pump Type Grundfos External Ambient Temperature (C) 22 Purging Method 2 Casings Previous Well Sampled TW4-43 Casing Volume (gal) 6.88 Calculated Casing Volumes Purge Duration (min) 1.25 pH Buffer 7.0 7.0 Well Depth (ft) 86.50 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 75.95 Conductivity Dissolved Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/12/2023 15:09 7.33 4374 6.39 16.70 335 14.0 36.0 9/13/2023 8:22 4331 6.35 14.65 Before 9/13/2023 8:23 4340 6.35 14.69 After Pumping Rate Calculations [volume of water purged (gals) 7.33 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 0.66 [Final Depth to Water (feet) 84.05 Number of casing Volumes 1.06 Volume, if well evacuated to dryness (gals) 7.33 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 1506. Purge began at 1509. Purged well for a total of 40 seconds. Purged well dry, Purge ended at 1509. Water was mostly clear. Left site at 1513. Arrived on site at 0817. Depth to water was 76.02. Samples bailed and collected at 0822. Left site at 0824. Signature of Field Technician ~ v,Jv-.--"--1-;,,(-d~) Groundwater Discharge Permit ~e -,·-~·. -.• t ..... .,· -'' ' ' , ,, ~-~ Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-36 Sampling _Program Chloroform Monitoring Field Sample ID TW4-36 09132023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/12/2023 12:32 Sample Date & Time 9/13/2023 7:50 [sampler TH/DL Purging Equipment Pump Weather Conditions Cloudy Pump Type Grundfos External Ambient Temperature (C) 22 Purging Method 2 Casings Previous Well Sampled TW4-13 Casing Volume (gal) 26.32 Calculated Casing Volumes Purge Duration (min) 4.78 pH Buffer 7 .0 7.0 Well Depth (ft) 99.41 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 59.10 Conductivity Dissolved Date/Time Gallons Purged {gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/12/2023 12:35 33.00 2460 6.60 15.73 190 20.0 3.4 9/13/2023 7:50 2405 6.84 14.34 Before 9/13/2023 7:51 2410 6.85 14.37 After Pumping Rate Calculations !Volume of water purged (gals) 33.00 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 3.00 I Final Depth to Water (feet) 97.04 Number of casing Volumes 1.25 Volume, if well evacuated to dryness (gals) 33.00 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 1228. Purge began at 1232. Purged well for a total of 3 minutes. Purged well dry. Purge ended at 1235. Water was a little murky. Left site at 1237. Arrived on site at 07 46. Depth to water was 60.08. Samples bailed and collected at 0750. Left site at 0752. Signature of Field Technician ~ ,,,,,,.,c-cf-;/c-('/~) Groundwater Discharge Permit ~ -,-~,. c:.:~,,~;_. • , ~,r-•. -· ~y~·s Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-36R Sampling Program Field Sample ID TW4-36R 09122023 Sampling Event 2023 Q3 Chloroform Purge Date & Time Sample Date & Time 9/12/2023 12:20 [sampler TH/DL Purging Equipment Weather Conditions Pump Type External Ambient Temperature () Purging Method Previous Well Sampled Casing Volume () Calculated Casing Volumes Purge Duration () pH Buffer 7.0 Well Depth (ft) pH Buffer 4.0 Well Casing Diameter () Specific Conductance () Depth to Water Before Purging (ft) Conductivity Dissolved Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/12/2023 12:19 133.00 2.5 7.81 22.80 164 0 21.3 Pumping Rate Calculations I Volume of water purged() Flow Rate (Q = S/60) () Time to evacuate 2 Casing Volumes () [ Final D_epth to Water (feet) Number of casing Volumes Volume, if well evacuated to dryness () Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y Comments: Signature of Field Technician ~ • -~ .._____,.,, ._,,.,. -,___ -f-;/c -(L· ~ ·:>) Groundwater Discharge Permit ~B .,,~· i L..::;· i '{ ,· - / • ~YFLEZ...S" • ! ' Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-37 Sampling Program Chloroform Monitoring Field Sample ID TW4-37 08092023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 8/9/2023 9:19 Sample Date & Time 8/9/2023 9:20 [sampler TH/DL Purging Equipment Pump Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 22 Purging Method 2 Casings Previous Well Sampled TW4-22 Casing Volume (gal) 25.69 Calculated Casing Volumes Purge Duration () pH Buffer 7.0 7.0 Well Depth (ft) 113.72 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 74.37 Conductivity Dissolved Date/Time Gallons Purged (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 8/9/2023 9:20 4434 6.34 16.63 336 14.0 96.0 Pumping Rate Calculations [volume of water purged () Flow Rate (Q = S/60) (gal/min) 18.00 Time to evacuate 2 Casing Volumes () [Final Depth to Water (feet) 90.53 Number of casing Volumes Volume, if well evacuated to dryness () 0 Name of Certified Anal}'tical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y Comments: I Arrived on site at 0915. Samples collected at 0920. Water was clear. Left site at 0921 . Signature of Field Technician ----.._ 1-..£. ,,,,;,/: / ...__j ,, ,,,,r-"---r ,r-·-'-£ ~<] Groundwater Discharge Permit Xiie .,.,~--· ' /.': '~y~ Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-38 Sampling Program Chloroform Monitoring Field Sample ID TW4-38 09132023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/12/2023 16:08 Sample Date & Time 9/13/2023 8:41 [sampler TH/DL Purging Equipment Pump Weather Conditions Raining Pump Type Grundfos External Ambient Temperature (C) 21 Purging Method 2 Casings Previous Well Sampled TW4-23 Casing Volume (gal) 34.37 Calculated Casing Volumes Purge Duration (min) 6.24 pH Buffer 7.0 7.0 Well Depth (ft) 113.92 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 61.28 Conductivity Dissolved Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/12/2023 16:12 44.00 1852 6.64 14.95 334 18.0 74.0 9/12/2023 16:13 55.00 1922 6.65 14.92 332 20.0 69.0 9/12/2023 16:14 66.00 1885 6.66 14.90 330 19.3 68.0 9/12/2023 16:15 77.00 1844 6.70 14.88 326 19.5 65.0 Pumping Rate Calculations [volume of water purged (gals) 77.00 Flow Rate (Q = S/60) (gal/min) 11.00 I Final Depth to Water (feet) 101.37 Time to evacuate 2 Casing Volumes (min) 7.00 Number of casing Volumes 2.00 Volume, if well evacuated to dryness () 0 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected Matrix Number Type Sample Filtered? Type Added? VOCs-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 1604. Purge began at 1608. Purged well for a total of 7 minutes. Purge ended at 1615. Water was clear. Left site at 1618. Arrived on site at 0837. Depth to water was 61.42. Samples bailed and collected at 0841. Left site at 0842. Signature of Field Technician ~ ,,.,,_. Groundwater Discharge Permit ~F-:\· • .,..: .• ' .• ~y~ Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-39 Sampling P!ogram Chloroform Monitoring Field Sample ID TW4-39 08092023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 8/9/2023 9:25 Sample Date & Time 8/9/2023 9:26 [sampler TH/DL Purging Equipment Pump Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 23 Purging Method 2 Casings Previous Well Sampled TW4-37 Casing Volume (gal) 29.29 Calculated Casing Volumes Purge Duration () pH Buffer 7.0 7.0 Well Depth_ (ft) 120.74 pH Buffer 4.0 4.0 Well Casin_g Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 75.88 Conductivity Dissolved Date/Time Gallons Purged (umhos/cm) pH (pH Units) Temp {deg C) Redox {mV) Turbidity {NTU) Oxygen(%) Before/After 8/9/2023 9:26 2548 6.74 16.40 339 19.0 96.8 Pumping Rate Calculations [volume of water purged() Flow Rate (Q = S/60) (gal/min) 18.00 Time to evacuate 2 Casing Volumes O [Final Depth to Water (feet) 110.43 Number of casing Volumes Volume, if well evacuated to dryness () 0 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y Comments: I Arrived on site at 0922. Samples collected at 0926. Water was clear. Left site at 0928. Signature of Field Technician ~-, ,,,v-~ -J-;,•'c-a'.~) c~~ r~e~ .. ~/;-·-.~-i. •.. t ~y~ ,,,• L Location ID Field Sample ID Purge Date & Time Sample Date & Time Purging Equipment Pump Type Purging Method Casing Volume (gal) Calculated Casing Volumes Purge Duration () pH Buffer 7.0 pH Buffer 4.0 Specific Conductance (micromhos) Date/Time Gallons Purged 8/9/2023 10:35 [volume of water purged () [ Final Depth to Water (feet) Name of Certified Analytical Laboratory AWSL Analytical Samples Information Type of Sample/Analysis VOCs-Chloroform Chloride Nitrate/nitrite as N Comments: Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater TW4-40 Sampling Program Chloroform Monitoring TW4-40 08092023 Sampling Event 2023 Q3 Chloroform 8/9/2023 10:35 8/9/2023 10:35 [sampler TH/DL Pump Weather Conditions Sunny Grundfos External Ambient Temperature (C) 24 2 Casings Previous Well Sampled TW4-04 8.46 7.0 Well Depth (ft) 86.00 4.0 Well Casing Diameter (in) 4 1000 Depth to Water Before Purging (ft) 73.03 Conductivity Dissolved (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 4137 6.45 16.32 324 2.9 110.0 Pumping Rate Calculations Flow Rate (Q = S/60) (gal/min) 18.00 Time to evacuate 2 Casing Volumes O 83.12 Number of casing Volumes Volume, if well evacuated to dryness () 0 Sample Container Preservative Collected? Matrix Number Type Sample Filtered? Type Added? y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y y WATER 1 500-ml Poly u None N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y [Arrived on site at 1031 . Samples collected at 1035. Water was clear. Left site at 1037. Signature of Field Technician ~----,n .--C~~ Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plan White Mesa Mill ~YFLIIIBt.S" Field Data Worksheet For Groundwater Location ID TW4-41 Sampling Program Chloroform Monitoring Field Sample ID TW4-41 08092023 Sampling_ Event 2023 Q3 Chloroform Purge Date & Time 8/9/2023 10:17 Sample Date & Time 8/9/2023 10:18 [sampler TH/DL Purging Equipment Pum p Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 24 Purging Method 2 Casings Previous Well Sampled TW4-01 Casing Volume (gal) 14.26 Calculated Casing Volumes Purge Duration O pH Buffer 7.0 7.0 Well Depth (ft) 97.75 pH Buffer 4.0 4.0 Well Casing Diameter (in) 6 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 88.04 Conductivity Dissolved Date/Time Gallons Purged (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 8/9/2023 10:18 2609 7.01 17.98 298 0 104.1 [volume of water purged() Pumping_ Rate Calculations Flow Rate (Q = S/60) (gal/min) 6.0 Time to evacuate 2 Casing Volumes () [ Final Depth to Water (feet) 93.20 Number of casing Volumes Volume, if well evacuated to dryness () 0 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y Comments: [ Arrived on site at 1013. Samples collected at 1018. Water was clear. Left site at 1020. Signature of Field Technician ~u, ,_,,,,_,.,_,1--/ 4~ Groundwater Discharge Permit c:-~ r-~~~ .~.-~YFL#ELS Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-42 Sam_e_ling Program Chloroform Monitoring Field Sample ID TW4-42 09132023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/12/2023 9:04 Sample Date & Time 9/13/2023 7:05 [sampler TH/DL Purging Equipment Pump Weather Conditions Cloudy Pump Type Grundfos External Ambient Temperature (C) 19 Purging Method 2 Casings Previous Well Sampled TW4-03 Casing Volume (gal) 9.39 Calculated Casing Volumes Purge Duration (min) 1.70 pH Buffer 7.0 7.0 Well Depth (ft) 86.00 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 71.62 Conductivity Dissolved Date/Time Gallons Purged (gal) (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/12/2023 9:05 11.00 3991 7.10 15.60 350 0 100.0 9/13/2023 7:05 3745 7.12 15.00 Before 9/13/2023 7:06 3754 7.13 14.96 After !Volume of water purged (gals) Pumping Rate Calculations 11.00 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 1.00 [Final Depth to Water (feet) 83.97 Number of casing Volumes 1.17 Volume, if well evacuated to dryness (gals) 11.00 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? voes-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2SO4 (pH<2), 4 Deg C y Comments: Arrived on site at 0859. Purge began at 0904. Purged well for a total of 1 minute. Purged well dry. Water was clear. Purge ended at 0905. Left site at 0907. Arrived on site at 0700. Depth to water was 71.61. Samples bailed and collected at 0705. Left site at 0708. Signature of Field Technician ------/2 , , _ _>,,,,._,,,.--''-----J-;,,,-, -c.:-:'.~ Groundwater Discharge Permit =-~ ,_,....,.. -~~y~ Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-43 Sampling Pro_gram Chloroform Monitoring Field Sample ID TW4-43 09132023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 9/12/2023 14:38 Sample Date & Time 9/13/2023 8:14 [sampler TH/DL Purging Equipment Pump Weather Conditions Cloudy Pump Type Grundfos External Ambient Temperature (C) 22 Purging Method 2 Casings Previous Well Sampled TW4-31 Casing Volume (gal) 14.39 Calculated Casing Volumes Purge Duration (min) 2.61 pH Buffer 7.0 7.0 Well Depth (ft) 95.5 pH Buffer 4.0 4.0 Well Casing Diameter (in) 4 Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) 73.45 Conductivity Dissolved Date/Time Gallons Purged (gal) (umhos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 9/12/2023 14:40 22.00 3569 6.50 15.80 315 9.0 26.0 9/13/2023 8:14 3586 6.70 14.70 Before 9/13/2023 8:15 3588 6.69 14.68 After Pumping Rate Calculations !Volume of water purged (gals) 22.00 Flow Rate (Q = S/60) (gal/min) 11.00 Time to evacuate 2 Casing Volumes (min) 2.00 [ Final Depth to Water (feet) 93.27 Number of casing Volumes 1.52 Volume, if well evacuated to dryness (gals) 22.00 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? VOCs-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y Comments: Arrived on site at 1434. Purge began at 1438. Purged well for a total of 2 minutes. Purged well dry. Purge ended at 1440. Water was mostly clear. Left site at 1443. Arrived on site at 0810. Depth to water was 73.55. Samples bailed and collected at 0814. Left site at 0816. Signature of Field Technician ~-J ,,:__,._,.._~---i~~ ,~-~. ,.--' ~~~ White Mesa Mill Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plan ~~~YFL,ELS Field Data Worksheet For Groundwater Location ID TW4-60 Sampling Program Chloroform Monitoring Field Sample ID TW4-60 08092023 Sampling Event 2023 Q3 Chloroform Purge Date & Time 8/9/2023 7:38 Sample Date & Time 8/9/2023 7:45 [sampler TH/DL Purging Equipment Pump Weather Conditions Sunny Pump Type Grundfos External Ambient Temperature (C) 17 Purging Method 2 Casings Previous Well Sampled TW4-19 Casing Volume () Calculated Casing Volumes Purge Duration () pH Buffer 7.0 7.0 Well Depth (ft) pH Buffer 4.0 4.0 Well Casing Diameter O Specific Conductance (micromhos) 1000 Depth to Water Before Purging (ft) (.;onauct1v1ty u1sso1vea Date/Time Gallons Purged (um hos/cm) pH (pH Units) Temp (deg C) Redox (mV) Turbidity (NTU) Oxygen(%) Before/After 8/9/2023 7:44 7.0 6.61 23.81 248 2.7 15.5 Pumping Rate Calculations [volume of water purged() Flow Rate (Q = S/60) () Time to evacuate 2 Casing Volumes () [Final Depth to Water (feet) Number of casing Volumes Volume, if well evacuated to dryness () 0 Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/ Analysis Collected? Matrix Number Type Sample Filtered? Type Added? VOCs-Chloroform y WATER 3 40mlVOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HOPE u H2S04 (pH<2), 4 Deg C y Comments: [ Arrived in lab at 0741 . Samples collected at 0745. Left lab at 0747. Signature of Field Technician ~ ,,,,, .• _c_·,.<.;,i,_~'.~~) Groundwater Discharge Permit ,-~~ -~·· 6 e,-~--~ Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-65 Sampling Program Field Sample ID TW4-65 09132023 Sameling Event 2023 Q3 Chloroform Purge Date & Time Sample Date & Time 9/13/2023 7:15 [sampler TH/DL Purging Equipment Weather Conditions Pump Type External Ambient Temperature () Purging Method Previous Well Sampled Casing Volume () Calculated Casing Volumes Purge Duration () pH Buffer 7.0 Well Depth (ft) pH Buffer 4.0 Well Casing Diameter () Specific Conductance () Depth to Water Before Purging (ft) Dissolved Date/Time Gallons Purged Conductivity pH Temp Redox Turbidity Oxygen I Before/After Pumping Rate Calculations [volume of water purged () Flow Rate (Q = S/60) () Time to evacuate 2 Casing Volumes () [Final Depth to Water (feet) Number of casing Volumes Volume, if well evacuated to dryness () Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? 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 H2SO4 (pH<2), 4 Deg C y Comments: Duplicate of TW4-12 Signature of Field Technician ~, ... "'t,,t ,J-,': .,,,,;,.-:; / ; / --c.,L,/4<) ~e-~-.• ~ -' ,?' ~y~ ,•. Location ID Field Sample ID Purge Date & Time Sample Date & Time Purging Equipment Pump Type Purging Method Casing Volume () Calculated Casing Volumes Purge Duration () pH Buffer 7.0 pH Buffer 4.0 Specific Conductance () Date/Time Gallons Purged jvolume of water purged () I Final Depth to Water (feet) Name of Certified Analytical ~b_oratc>ry AWSL Analyt~al ~amples Information Type of Sample/ Analysis VOCs-Chloroform Chloride Nitrate/nitrite as N Comments: I Duplicate of TW4-05 Signature of Field Technician ~", •_n,><--cJ---;,'; ./4-~, <' Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater TW4-70 Sampling Program TW4-70 09142023 Sampling Event 2023 Q3 Chloroform 9/14/2023 8:07 [sampler TH/DL Weather Conditions External Ambient Temperature () Previous Well Sampled Well Depth (ft) Well Casing Diameter O Depth to Water Before Purging (ft) Dissolved Conductivity pH Temp Redox Turbidity Oxygen I Before/After Pumping Rate Calculations Flow Rate (Q = S/60) () Time to evacuate 2 Casing Volumes O Number of casing Volumes Volume, if well evacuated to dryness () Sample Container Preservative Collected? Matrix Number Type Sample Filtered? Type Added? y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y y WATER 1 500-ml Poly u None N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y Groundwater Discharge Permit ~e-~~_l ·, • . F'.:· ~YFUEZ..S , . Groundwater Monitoring Quality Assurance Plan White Mesa Mill Field Data Worksheet For Groundwater Location ID TW4-75 Sampling Program Field Sample ID TW4-75 09262023 Sampling Event 2023 Q3 Chloroform Purge Date & Time Sample Date & Time 9/26/2023 11:30 [sampler TH/DL Purging Equipment Weather Conditions Pump Type External Ambient Temperature () Purging Method Previous Well Sampled Casing Volume () Calculated Casing Volumes Purge Duration () pH Buffer 7.0 Well Depth (ft) pH Buffer 4.0 Well Casing Diameter () Specific Conductance () Depth to Water Before Purging (ft) Dissolved Date/Time Gallons Purged Conductivity pH Temp Redox Turbidity Oxygen I Before/After ["\i'olume of water purged () Pumping_ Rate Calculations Flow Rate (Q = S/60) () Time to evacuate 2 Casing Volumes () [ Final Depth to Water (feet) Number of casing Volumes Volume, if well evacuated to dryness () Name of Certified Analytical Laboratory AWSL Analytical Samples Information Sample Container Preservative Type of Sample/Analysis Collected? Matrix Number Type Sample Filtered? Type Added? VOCs-Chloroform y WATER 3 40ml VOA u HCI (pH<2), 4 Deg C y Chloride y WATER 1 500-ml Poly u None N Nitrate/nitrite as N y WATER 1 250-ml HDPE u H2SO4 (pH<2), 4 Deg C y Comments: [ Duplicate of MW-32 Signature of Field Technician -----... _.,{ //✓: / ._______)u .,-!__.n . ...;'_..·;:: ___ -/-;, '-:___/ ... -d1-::..) < TabC Weekly and Monthly Depth to Water Data Weekly Inspection Form Date 7 -,3-a,3 Name LJv:b-<r-5',or/2, &ow ip,11.~, S ystem O perat~~I (If no note Time Well Depth* Comments anv problems/corrective actions) -01,1 MW-4 < l.( t:'4. Flow .L.I n .. No Meter 1t.<ie<'i ~~ R",;,' ~ No 0'1'5.~ MW-26 ~, f) ( .. Flow I ~'E 'fas No Meter ~ 1 L-11 o $1 /11 ._. No oc,oo TW4-19 -, 3 """' Flow Ill,'!/ .,_ No Meter -11 -z,, .t; Ir() ~ • No 0~3{) TW4-4 SI~ q1 Flow f~,(J 1illl> No Meter ~"/~.la~ q ... No ni"-5' TWN-2 <,.J, 'i I Flow II.. n -..s No Meter -.i 1 "1 R ~ R 1 n ~ No 073(0 TW4-22 7n Jt,,J Flow ; t. () -No Meter q ~ ,. ~'3 ~ 1 'Ill: No 0731 TW4-24 t'.tr.;3 Flow If... n ~ No Meter ::i '.l ""D 1.p{ o _ 1•0, .. No n-,~n TW4-25 /'-~ g,j Flow J"f.n ,.. No \ Meter , ,.n i~ 5!t S-: t3 ,... No (J 't, ')..0 TW4-1 l lJ':f I( .. Flow I '.:I. I' .. 918 No Meter z-I, ~ ~ ,; .tJ • '"1, ._ No ()~Ol, TW4-2 (l'Jtl -r-r Flow lfA .I') .. No Meter 5'3~q g~ 7 ,_ No OfiOJ TW4-11 Rq, ",I. Flow jl(, ,;; .... No Meter I r;-1 °' ~ · -r :t .... No 071', TW4-21 7(,,. -;< Flow /6. ..2. Jk No Meter ~..i,st1~0 c-c • No - 01"1'2 TW4-37 1/.( 111 Flow I~ /)(') 'IS!s. No Meter ::,.,_ 7, r,. '1 t;" o -r , q ._ No o-r'ii TW4-39 -,, g~ Flow t«. () ... No Meter , n q-r ~c.J ~ ~ No t?S/7,st TW4-40 '"1.1 ~n Flow \"7 ,;_ ""111& No Meter ;:. .,n -..,, " Jo.. 7' -12.I l/',1,,11{ 'q ,.»-'Iii; No 0'6-:U: TW4-41 ',l~ II Flow ' 0 ,_ No Meter /./LI 2 a, ta-,,, ."11-.. No Operational Problems (Please list well number): Corrective Action(s) Taken (Please list well number): ----------------- .. Depth is measured to the nearest 0.01 feet. Date 7 .. 1 0 _ 63 Weekly Inspection Form Name '!2-,-nkLvra/ r,;;;;;_,,-tl,tC,~ / System Operatioal Of no note Time Well Depth* Comments anv problems/corrective actions) oq~ Lf MW-4 "',;-1 a Flow "' ,, ..... No Meter~r,,C\21 :J.LI 1~ ... No o~~t. MW-26 -, "' n-, Flow I I.. 0 .. No Meter ~ 1 /_/./.. 3 ?i ~ No II) "'7,0 TW4-19 -r-:t.OQ Flow I I. fl ... No Meter 7 3 1 "4 1 ~ .., :i -No l)q~q TW4-4 ~l.. ~t::'" Flow ,c::~ .. No Meter ~"''-I fl~ n. 3 .. No O?.I~ TWN-2 q I I ""f Flow I I •. 0 'l!s No Meter ::11q 2 .1 ~ "q 1-No ()9,"" fl TW4-22 -r1 ,,,_.., Flow , r:-. st • No Meter °' ~ -, ~ I:\ t. 1 .. ~ No n~.,,?. TW4-24 /_Q ,_< Flow I I • .2 ._,_ No Meter .2. ".l --a..1-, '-I~ Y, 1 :J .... No IO~lq TW4-25 '""11 1-t< Flow , "f n ·-'918 No Meter , L , 1 7 7.fJ o 7 --No {)qi.,~ TW4-1 ,,,,_, ,~ Flow '1. .. /,. ,.. No Meter ,,., '=lCJaJ 11 q ... No /le:) rn TW4-2 q/ __ I\ Flow 1(.,() "1111g No Meter ,; 7,.q ; 7 ,_, q ... No l>an~ TW4-11 ft~ Lf IA Flow ta.I ~-... No Meter I i:;-:l 1 --; o 2 1!lle No /H~ 1.2 TW4-21 -re:. ::1st Flow /IA Ir llil8 No Meter ~ 1-f 1 ,.u; nu. ~ i;'" ~ No 0 'I.LI 1 TW4-37 7•l, li"fl Flow '"-0 .. No Meter .:a. -i., 01 _,,, <l\ , .q 111111 No Ost~ I TW4-39 7,., -:{q Flow I 1J o .... No Meter 1 , tJ o £.. , q ::2. .._ No lrtnf,, TW4-40 ~~'ff Flow l<Jr. () ... No Meter I ~ I cu:;"'()<.. .r. .l '11a No oq,;3 TW4-41 40m Flow ,I',. () ~ No Meter "'1.4 -:r q 2. L( -, , ,.. No Operational Problems (Please list well number): Corrective Action(s) Taken (Please list well number): * Depth is measured to the nearest 0.01 feet. f ' Weekly Inspection Form Date 1 --11-aa Name O,uz /riff ,,;;;;;,c i/ol~c System Operatibnal (If no note Time Well Deoth* Comments anv problems/corrective actions) oq< ~ MW-4 9.1.f "Ji~ Flow .., n ,._ No Meter ~1.qq4K 1~ t.~ ... No nq~t. MW-26 c;t ..2 I~ Flow II. "'.l ..__ No Meter g19.1.1.1r,o .. No 1~,1 TW4-19 "1"\ I llJ Flow ,<-. a ..... No -Meter_ '1 ~ q q 1 "'I . 2 r ~ No 1n1n TW4-4 CK C". -, 'f Flow i (. (} 1111! No Meter cza.1 r::: 1 L,f -i,. a -No inqor. TWN-2 '7l.. '1< Flow ,~ n .... No Meter 1.1 n1.n2 sr r las No oq1n TW4-22 1.q 11 Flow ,,;-. R 1111111-No Meter q~q.2.-1?0 .2 !Wiig No ,, ,q,, ~ TW4-24 l.i Cl'i Flow I t. 1 ... No Meter ., -, -J,~ c; 1 ~. t,fl -No nqnn TW4-25 f.CLq11 Flow ,.., n ,.. No Meter , 1 .. -::i. n, .2 q ~,_ ,._ No nqa::.• TW4-1 IO"f .~I Flow J 'J )l • No Meter .. , ~ c; n ~ /... .JI ... No n QI-/ t,, TW4-2 q~ ifi Flow I IA () --No Meter ~'In<"~"' n .. No D q &.1-"l. TW4-11 «4 n~ Flow , ,,, ,_ ... No Meter , ,;-~ .2 ~.., ~ 11s No n<;c<4"" TW4-21 "71... 1./'Jl Flow Ir:, /) :a.s No Meter '3 ~~ oq o c:i q .,_ -,.,. No 1/)Q~.i:;' TW4-37 -, " ~{) Flow H( /J ... No Meter !l , 7 .. , , -, i , WE No aq-,., TW4-39 ,4 .C:-1 Flow •~ n -... No Meter 11 n:2 q'Til \ ~ No f l') .!I Cil TW4-40 1~ .• ~ Flow ,-? .. , ,... No Meter , 1 ~ ":J gqq_ r.o h No ,noe:-TW4-41 <Z,Q ./. '.l Flow '-S( ... No Meter LI LI ~-.q .l &-1 . .., l ~ No Operational Problems (Please list well number): -r._. ... v/..-~{ • ,,._..,,._,I' 1.-. __ If--+ Corrective:;f;tl _};"aken (Please list well number): 3'Jj;;;·t: ~ 1;v .--c-/e~fA-=- e[~ -e<(/:!f1 ? ;jO:t: :f{a f" -=ro Id ce /'? * Depth is measured to the nearest 0.01 feet. • Weekly Inspection Form Name Time Well Depth* Comments anv oroblems/corrective actions) I nl-( fl. MW-4 fl&/ 7q Flow "'· n .. No Meter ~ ., n"' ~ n ~ ~ 'I 1111111 No oqrc MW-26 -,,a I /. Flow I I. -:, .. No Meter o(l 1 n ~ si 1 .2 ... No II./~/) TW4-19 "11 ,,; Flow ,, .. n ... No Meter -, '-19. IA 1 n fJ q 'la No J l ::J LI TW4-4 ~~-q4 Flow I l. n ... No Meter g_ 4 ~, t. L/ n .,.. No 09'&4°1 TWN-2 g-, q~ Flow JI(', ~ ~ No Meter .1 -:i_ 1 Q '"' q -a. n !!IE No t>~<~ TW4-22 .,IJ "1'1 Flow "• n ... No Meter q q 1 ~ i t. q ... No 6QJ.t'1 TW4-24 ._,1 ,._, I Flow I I,,._ n ... No Meter .2 :2 .. , '.l 1A ·~J ,. n ---No OSllll"-TW4-25 st~<.O Flow Jl/,0 ... No Meter , ~ ~ er tt ".-1 q ,_,..., .... No inc;-(' TW4-1 tO't .CJ1 Flow I 1 ~ ... No Meter "'"'\ r;-l. 1 fl ,;-,_ No 1n&.1-=i TW4-2 11/l. ,o Flow I t.. n --No Meter &:''-<I 1 ~ 1 , ~ ... No n~-,.n TW4-11 ~q , -, Flow ,~. t.. .. No Meter ,c .. ,.., ~,:;-... No 'l>'il ?.n TW4-21 "1"f ~ 9, Flow j "6.. tJ ~ No Meter ':\ a.:i "\ ., -a.., , 11 ,. -No ' nqn, TW4-37 '""ft)~'" Flow ,~,.. .. No Meter 1 '2..., -, '"' ..., "1. t ,.. No oqo7 TW4-39 ~<' ,,.,:;-Flow ,~.o -No """'4 Meter , , a '-I I q ~. ; .. No ,~,. ~ TW4-40 --,3 .;uJ Flow ,~ () 111& No Meter , 1 '2 ti. , ; .1 1 '1 .... No ,~,q TW4-41 'SI• "7 I Flow ,t;,n ,.._ No Meter ~..., '! n "'~. -,~ ~No Operational Problems (Please list well number): Corrective Action(s) Taken (Please list well number): * Depth is measured to the nearest 0.01 feet. Monthly Depth Check Form Date 7 -,31 -<63 Name r:¾.r ?Jr-, Tuaec f{,.4 Time Well Depth* Time Well Depth* LQS.I MW-4 81.~S l~3€ TWN-1 ZO.,!Q ltl.~"1 TW4-1 1Q~.;l,1# i~ TWN-2 ,1,t'.a lQS.~ TW4-2 IQ~, I I !307 TWN-3 ~~.3~ 1:HO TW4-3 ""' .a3 Qft,_~~ TWN-4 r,,.lf. o,a JQ31 TW4-4 ,S•·f.t.1 I ~'.51 TWN-7 ~ s1.(o • ~ i3 2.3 TW4-5 J!.~8 a~3, TWN-18 {e3,2.5 LQ3l TW4-6 iat ~u J~ 12 MW-27 .f!J.121 las. -:t. TW4-7 !a.is: ' a,_'-/ 2 MW-30 1,;. jc;;"' 1:Joa TW4-8 ~H'.:1 j ·l ,~2 MW-31 f.!, &~ 1i1z TW4-9 ~L. ~Ga l 3 2.'.Z TW4-10 7t2,8.Q l:33~ TW4-11 9Q D':i Q!S:( TW4-12 {."f.. 11. 3. '2~51 TW4-13 f.'S.·. Q ~ o.g'J_Q TW4-29 :z ~, :r. t:;' Q~~!:I TW4-14 7.I-r.a Ot!JJJ1 TW4-30 ~ ~~~-3 ,a~a MW-26 :1!, gr:_ ag 25'.'. TW4-31 z,.:3'-: l2i.al TW4-16 '1f.,Q1 ,o 03 TW4-32 s z.::1., I .i!.31 MW-32 $'.3 .~ L Q90 (a TW4-33 :Z9.S:t.2 I'·lll TW4-18 1!:l.,K 0~3~ TW4-34 '1f» a c. L~~a TW4-19 l.&,io QS:?l\ TW4-35 1,. as l~iU TW4-21 12.~"u. 09~8 TW4-36 rg.u l~Ql TW4-22 ,! .. 9!! '3 ~(ii TW4-37 '1.~1l'! .. La 3. l TW4-23 -::r.. '1., ,jil. ;I l31~ TW4-38 ,1 'l.15 l!:1.Q-:t. TW4-24 :11.t.O ' ll~ J TW4-39 12.13 ,~a.~•-TW4-25 f.t~,IS !2~~~ TW4-40 2A.11' ;a a" TW4-26 1.£ ~,:-LQ~;a TW4-41 s~.~,, Q9Q, TW4-27 1!..5:! a,Qa TW4-42 11~25: o,,.-, TW4-28 S'.12, 42 092.Q TW4-43 1:!.f"f' Comments: (Please note the well number for any comments) * Depth is measured to the nearest 0.01 feet Weekly Inspection Form Time Well -Depth* Comments rn 1-r MW-4 'ill-I 11 Flow Lf n Meter 1 -, , ~ 7 "1 ~. '\ :r, JD n 1 MW-26 jjli !2<:" Flow ,1... n Meter 'it-,, 1 c;-'5'3.1 1'1.D~ TW4-19 ~'l I 'l Flow ,r:. 'I Meter "7 ~ '1 0 sq 3r ,n,~ TW4-4 «r' no, Flow I I .. (J Meter 'iIL/t.~r; R ii> nSlJ;'I TWN-2 ~ 2-. g I Flow It... .2 Meter ~ ~ ~ ~ "\ "1, , -a n4n « TW4-22 /_°'_,:c' Flow I/. n Meter aQ'.lqsan c; IIG <Cit TW4-24 /..CLq~ Flow If. ~ Meter .1 j,_ a.11,. 1 ~.., , i..t ()'1,"4 ~ TW4-25 ~q ".lc:f Flow I -4 0 Meter , /_ ~ -, n 'jf 7 ~ q - 1n:r1. TW4-1 1014 r:'/.. Flow I "1 « Meter i.r ~ t.. ·:uw n JD I !I. TW4-2 111.n-::1 Flow It.. n Meter I!.' u 2 , .., (l ";\ tnl'J-, TW4-11 06 Q-, Flow Jl;'. I. Meter , s:; t:' nfit "\ r,. atfl-,."' TW4-21 .,,,. .~ .1 Flow ,~.1 Meter 3 '-i '-I~, .. ~ n r:-,:, nq p.4 TW4-37 /_q 1~0 Flow I t;l () Meter ~ ~ er 11 7 q <'-< aq,:1 TW4-39 -, 1./ -:t., Flow If{ (') Meter 11n1. ~, -r "1 IO"i~ TW4-40 '12. .~~ Flow 1"'1 1! Meter 1 'l. 'J °' -,.~ (": G\\ fl}.251 TW4-41 ~'J lfl Flow ~-n Meter .., "" I.J q t n q 1,, Operational Problems (Please list well number): Corrective Action(s) Taken (Please list well number): * Depth is measured to the nearest 0.01 feet. System Qp:Uonal (If no note anv oroblems/correctlve actions} ,... No .... No ~ No ... No ... No ~ No "1m No 'Ills. No .. No --No ---No ,_ No .. No ~ No ... No "las No ,... No ~ No .. No .. No ~ No 1118 No ~ No '1a No --.e No 918 No ~ No -No llliB No '1151 No .... No .._ No Weekly Inspection Form Date s-1-21 Name Du,, k:~101,.,. 7e:arr tMl!:7., sfstem Operational Hf no note Time Well Depth* Comments anv problems/corrective actions) n~,., MW-4 4l&.<.1!l Flow "'. n 1111c No Meter ~-,-,nc;"'l,~'l :t ,,_ No ' O~l.~ MW-26 .., .. , . '"'., Flow JI'.. 1 .... No Meter f ~'/"' 11~.'° ... No 11)2."1 TW4-19 -, ~. ~r. Flow l&.t r;t ~ No Meter 71. •r-, "'n . II .. No oq~~ TW4-4 ~q. 7/J Flow u ... 0 ... No Meter i"41 n n n n ,... No n-i~~ TWN-2 1-0. ~~ Flow 11. n -No ,, Meter ~ "'1.."'1 < .:1. o .. "I :1. ~ No lY"T K /_ TW4-22 ... ~ ~-.,. Flow 11 .. [) ,... No -Meter 4 q .., 1. ~ n . t. ... No n71./f1 TW4-24 I . "'t --t, I Flow II. .1. ...,_No Meter 2 . .:2 I!:'.,, '1 s, " n< --No 0"1-:J. (,. TW4-25 .., '::t..,-,< Flow I '-I ~ fJ .._ No Meter , .,_ ._, ~ C-'-/ L S1 ... No f)Q~I TW4-1 q~ qc;-Flow ,~ ~ ... No Meter 1.1 -i.1. Q q ,. Q ... No IHI It TW4-2 q-, ,c;-Flow I IIO ..2 Wi6 No Meter ,r"" 'l q ("~ < 411is· No oqn,. TW4-11 ~'i .2.q Flow . ,; , .. Jillie No Meter 1 .; ,,A Q n ::i ~ ,.._ No l"1-, I '1. TW4-21 ....,,_ ,c; Flow II. D .. No Meter ~ ~ ~ q q n ~. ,; ,., ... No 10~1 D TW4-37 -r'-1 c:; c:: Flow f ., • (] .. No Meter '!J ~4"' 1'-IQ. '-'· ._ No D'A 1 ~ TW4-39 .., ,., ,_ L./ Flow I ,tt ,) ,_ No Meter , 1 o~ <qq_~ .... No QQ4J.. TW4-40 "1 "'l .., i../ Flow ,~ 0 ... No Meter 1 "l. "\ :1C--~~ .cw 11a No IJ., ,., .... TW4-41 ~« ~/') Flow ,;. 0 ... No Meter """" ,:--,~() 4/4 • No Operational Problems (Please list well number): Corrective Action(s) Taken (Please list well number): * Depth is measured to the nearest 0.01 feet. Weekly Inspection Form Date Sf-1 1 -,23 Name Dun r., ';;'...,"'2' ;;;:;&:c ,¼:/1,1, System Operationa (If no note Time Well Depth* Comments anv problems/corrective actions) nq'il MW-4 ~ 43 .. "1 t Flow l/ n ~ No Meter ~ '1 -:t , '3 1. '--I',,, -:i ,.. No ' oqu MW-26 9."( I I Flow , ,. n ~ No Meter ~ 2, -, ~ ,: t.. -, .... No 10"2,t') TW4-19 J'.<f.nl-Flow lf,u/1 ~ No , -, Meter ..., -, -, « 1. q q q ._ No 04515 TW4-4 -t'<l "',;' Flow IL. n ~ No . Meter CJ "I ; 9' ~ t .. _ ~ ,.. No O'Ae.'4 TWN-2 t.:J.CIJ Flow I I. () .. No Meter ~ 11.11LJn ~,. ... No t'J"I 10 TW4-22 10 J' .. G Flow ,,~. n • No Meter Qq-, ~ a.t l.. .~ .. No oqoi: TW4-24 ~~-'2"'::t Flow It; .. a ,. No Meter ~ ., < -, ::, ~ 4 _ .:, u .., No '.l'J t{l t(I/ TW4-25 r.9 "' Flow '"'· :z ... No Meter JI. r, -, t; r1 9. tJ 51 ... No ~qa.,1 TW4-1 (tq 1.. "'f Flow ~-I-, . 4f 'Ill& No Meter ,., ~ -r -, ., q Q 'Ills No oq-3<.. TW4-2 101'.~-,. Flow 1< d ~ No Meter ,: 1-1 '-' &.1 ~ r. .. '1 '1!ile No oq3\ TW4-11 ~q l)i.f Flow I I. f1 ... No Meter I c:-r -a..C'l <• .. No (J'il"/1 TW4-21 '71'. ,_, 9. Flow I I'. n ~ No Meter ~..,cq I lofn ~jl 11111 ·No /)'f /;' TW4-37 71/, I IJJ Flow •-« n ... No Meter ~ "!l. G~ -:i~ r::. 4;1 ,._ "No 1oq1. I TW4-39 ~~-~ta Flow ,~.n .... No Meter 1 1 , 1 ~ '"' ~ . , .... No UJOt; TW4-40 ..,~ -,-A. Flow • ~ n w. No Meter 1 "'.2 ~ 7 t,. n 1 ,:-t) ... No nq;-3 TW4-41 ~q, 11:j"' Flow ,. n .Jlla No Meter " LI. -, 1 1 ... q -, la/ '1!1B .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 Name ¼,a C-t.yl'.134£ :z,;:;,,a:::: $/Cf vstem Ope~atlon Ctf no note Time Well Depth* Commenls anv problems/cor,:ective actions) IIJ~~" MW-4 4ll '-./\ Flow II D ~ No -Meter ~7~¥.l <"I, '11 .. No . OSA~ MW-26 qt:'_ t:'"I Flow I I,, (J -No Meter « ~ «< ,., () 1. 9 Wis No lt'J'i< TW4-19 -, 12 4t/ Flow I c:': ~ .. No ~ . Meter 1 ~ , 1 ~ '1 ,•t"'1. .... No /)fl ir, TW4-4 ~~. IL( Flow If. :z. 1llii No Meter ~,., « 1 .., r-. ~ ... No 07'/Cf TWN-2 I.« ~-, Flow "· ~ • No Meter ~ 2...-,, 1.1. ✓-4 -No fJ 1tDI. TW4-22 t.~ "§r-' Flow ''-~ 0 .. No Meter q q Q o 1 ".I 11 .. No () q f) I TW4-24 -, ~ 11:t' Flow I/.• (} • No Meter ~ ~ t;'qnq":\ ~.t::: .. No n -, "''2. TW4-25 1 .. -t.Q-'I Flow ,,.., a.f '' ... No Meter • ,. ,_ 2 ~ 1<..22 Wis No 0~ "If TW4-1 10<. ""~ Flow I :1 fl 111s No Meter ... ,_,., 'i380f8..l ,.. No l)~~~ TW4-2 lf}S4 I tJ Flow ""' ~ .. No Meter 5'11.ff. J '1 .q ... No 0«~7 TW4-11 "q "19i Flow JI,. 0 --No Meter , <"~ 71. 01 ... No {)'"t~~ TW4-21 71, .0'.l Flow J~.n ._. No Meter "'11.#1.211 ~. ~ n ,_ No "~ \ \ TW4-37 ~n.1,,.-; Flow .~ 0 ... No Meter ;:, ;qo~ qq -, ,.., No I)~ I G, TW4-39 ...,..,.~ 11 Flow ,~ /) .. No Meter , , 1 ~ ... , n '-' , ,._ No n«,;-q TW4-40 "1 L qi( Flow _1R t) ... No Meter, :2. '2qt) 1 ~-\ 1' ... No 09. I./ I. TW4-41 ~tA O t;. Flow <.I-I .. No Meter ·'"",... '1 a.-i ~ 7. o ~ ~ No Operational Problems (Please list well number): Corrective Action(s) Taken (Please list well number): _______________ _ * Depth is measured to the nearest 0.01 feet. Date :a,._ ~a-;a 3 Monthly Depth Check Form -4 ) Name, C¾, wry, ::z:;;::.-fiC!1.' Time Well Depth* Time Well Depth* Q~!:tl MW-4 93.:z I 130! TWN-1 7.fJ., 12. 0.9.~l ·TW4-1 !!19: al .t')j5 G'!I TWN-2 (R,il .!i.Q Q_93'2 TW4-2 l0.Z,S3 J3Q3 TWN-3 ~':l.a II~,;-TW4-3 ta£. ,a 1:a~ TWN-4 k3,C.3 Q~S::~ TW4-4 7-S,!J.5:. tl~!S TWN-7 191~ u ;-,s: TW4-5 13,l.7 '"-$"~ TW~-18 ~:~ ' TW4-6 ,r MW-27 1al·.• 10.~S: i2.~~ I 2.,?a lit, TW4-7 sa..12 , a, <o MW-30 1f':3S: ~.., 1a3~ TW4-8 ~31 ' l 11 2.. ·-MW-31 4;$u1 U~I TW4-9 71.3:L JI i:;"9 TW4-10 """· ~~ Q~'.?ll TW4-11 i!tc Q!:j 0.!J.~,,J. TW4-12 2-1.-l.2 Q!l]~ TW4-13 r.,, l3 a~as. TW4-29 19.SO Q9:3a ~ 4-14 l :t.,5:.0 Q!l~ TW4-30 "1.>..,£& Qgat-W-26 S~.11 Q 'J.Q {,,, TW4-31 1t .... !J.O. j :Z.Q .3 4-16 -:t.~9:2. Q'l.i.O. TW4-32 t,;.1.1~ t .2 ll·-!i MW-32 !1.du QIS:? TW4-33 1~-~ 13L ~ TW4-18 7.~. £.t:' Q92.~ TW4-34 :1,. ( !::( /Q30 TW4-19 t-!!.Q{4 Q!:!l\$ TW4-35 :ztit .n .o~~l TW4-21 :i, .. ~ ! Q~3Ga TW4-36 ~!..;za a~uo TW4-22 XO.t l.9'.· Q~.U s:: TW4-37 7."I-. u-.. 1-l~I TW4-23 u.!ta ll~S TW4-38 I-0.1:~l Q9QS:: TW4-24 :i.2... :2...3 Q!~ TW4-39 lj,,_1:$'4 a~~~ TW4-25 t.9.!U ,aas:. TW4-40 7:2..i:l.1 12~~ TW4-26 7.~. l~ a~s:3 TW4-41 ss~ ,3.;- fl.'-Qtl. TW4-27 :Z!.~.-3 afl~~ TW4-42 11:..10 01'i l TW4-28 S'.Q. 1t 0901 TW4-43 73, <,1 Comments: (Please note the well number for any comments) * Depth is measured to the nearest 0.01 feet Weekly Inspection Form Date Name 0,-,:a TM • '/;aao:: Ii/et/,? ~ystem Operational {If no note Time Well Deoth* Comments anv problems/corrective actions) oqo~ MW-4 4ir\ \{. Flow LI 11 ,_ No Meter 17"'' 1 77. ,;1. •~ No f) 9, "'&.f MW-26 -,<.~~ Flow IL 0 .. No Meter ~~n'-1 T-,. ~ 11115 No I \ r;'"or TW4-19 "1 :l. r; I Flow //,. 0 ... No Meter 7'1. !l qq c;-: :J q Wis No nq 11 TW4-4 tit~ 1 .. n Flow I I. :1 ... No Meter 9. '-/ R tn S1 '1. n ~ No 0810 TWN-2 t'.LIR Flow If .. () ,,._ No Meter ~ -:2 ~ ~ q 1A .:2 '.l .... No 0" "l. (./' TW4-22 .., I:;' 1-/ <:J Flow 11-/') .. No Meter qqq 1 h 'il. l ,.. No n~,~ TW4-24 ~q,15'" Flow , ,A n .. No Meter 1. 11" • ., 1 q o. o ~ ... No O'h(JC' TW4-25 ,_q '2. '-I Flow 11-f.lJ --No Meter , r. ., n 9. 1 "I. 7 t. ~ No lJq,n TW4-1 IIJ<. "11. Flow l:J. ~ ... No Meter "" ":l ~ 1,. -, -z. "1 ... No n~t:'-r TW4-2 qq,ni.. Flow It:. '.1 ... No Meter I{'..,,:;-~~ t. ., -. No D~~o TW4-11 j:\q ~1 Flow , r .. n .. No Meter , c;q ,. , n -a. ..,._ No f1'l0{) TW4-21 7 c; 1-/4. Flow //'., "2 11N No Meter 3.t.f£.'lf 3 7. 7:J.. .. No lt:J~~D TW4-37 (.q "15 Flow I~ 0 ~ No Meter l'3Di'-12 7"3.0 1illl8 No og11 .. TW4-39 ,~ q 9 Flow I~ D ~ No Meter 1 , 1 ,,. q 7 "3 ~ ~ No nG?,\ TW4-40 ""1:1 9.:::1 Flow .~" ,.... No Meter , 1 .., :i. ~ 1 , <1 ..2. ,_. No nq11,. TW4-41 qO. I IJ Flow r....o -a. No Meter ,., Ll <i:: ~ , , ~e: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 q ... s: _ 63 System Operatio~(lf no not Time Well Depth"' Comments anv problems/corrective actions) ()9,.,; 0 MW-4 1\1 -ro Flow 4 ,(1 ..... No Meter ~ -, I{~~ n r,. .rn '1-No ' /) fl 2, '/ MW-26 1{~. '2 2 Flow ,, •. 2 --No Meter ~ w::, ,;-:1 -z, ~ .. No nq~/) TW4-19 .,~. ,n Flow ,r: ~ 111g No Meter 7'1!/1./ n,. ~1r -No 0'107 TW4-4 «~.(,.I,/ Flow It. fJ -No Meter ~'-'/q:2 ~ 1., -. No O'l.n3. TWN-2 1l1 .2q Flow ,~.o ..... No Meter 21.Cl'f.,, ~ 1 8 ... No ' IOSJ7 TW4-22 "1"1 I.Ir Flow I G. .. 2 .. No Meter , n t> , -, q 7, I --No o9.1n TW4-24 ~'I~'={ Flow 1,;"'. I ,_ No Meter ~ '.l t,. 7 S1 ; tJ . 1 'J --No ' () 7,;''{ TW4-25 7!l .. 12 Flow ,;-, n ~ No Meter , ~lltJ'./ 3,, nl':. ~ No Oi.;"1 TW4-1 I tl1. f'1 Flow 12 « .. No Meter 1.1 ~q ~ "· 1 n ,__ No 09.4/t, TW4-2 <rt,~~ Flow ,1 •. 1 1l!s No Meter ~-·-~•u.lf1H,<R ..,. No 0~1.1 I TW4-11 cq It; Flow If,, ll JIN No Meter u.-n 7 ~--~ "7 .... No ,(') 11{ t:/ TW4-21 91'!.,07 Flow I 1,,./J 111116 No Meter ~.., 7 t,. 'Io~-flfl .. No "~ 2 :>. TW4-37 /'.t::t ~ J.( Flow ,..,. ~ ll!s. No Meter :.i -i. q ~ 1 '2 IA 1~ Will No l)~~q TW4-39 .;{'3 ~, Flow 11'/.n .... No Meter 111 q701.2 llE. No Ioq1 "3, TW4-40 -, I. ~I~ Flow I« ll ... No -Meter , -:1 LI s-q 1 1.. "1 _~ -"la No 06:tfl):J. TW4-41 ~~-r:: lo Flow /-0 ... No Meter ~4 q ~ 71,. OJ.. .. No Operational Problems (Please list well number): Corrective Action(s) Taken (Please list well number): • ------------------- * Depth is measured to the nearest 0.01 feet. Weekly Inspection Form Name Q,..,,. ~•-/4, 'ic .. w i¼a:;.f., ;ystem Operatio~ (If no note Time Well -Depth* Comments anv problems/corrective actions) 09.t:'.., MW-4 111.«~ Flow c.t.a .. No Meter ~, c;; 4/ ,. 1 .1 • a;"" 1 ... No O«" I MW-26 ..,C '!I I Flow ,,:-_ ~ .. No Meter 'B'f'l/311.o 'h No nq~,:-TW4-19 •t"1 1Q Flow I I.. lJ ... No Meter so 3 '{ 7f": ~., ~ No Oq1~ TW4-4 ~~ l.~ Flow If.. IJ ... No Meter ~"19~1,;--. o ... No O'AI "1 TWN-2 r:'~ 1. 0 Flow I/. .IJ .. No Meter ~ .,_ n 7,;-~ .• ,,, .... No I /J'1r 11,. TW4-22 I.~. q I Flow J/-0 --No Meter ,on~ 11...., r./ 'la No nf1'.2. TW4-24 t. q -, IL> Flow 11 •. n ... No Meter 1 ::1. -r , a., ~ j a o ,.. No Dtt I !I. TW4-25 1.-t!f. /I.{ Flow It;'.._, .. No Meter, ~R 71'. 'II/. 'I/ ... No I/J4na TW4-1 qq_f.,2 Flow /'!I.ff ... No Meter "f ~ q T 7 :z. ., , .... No II) «4"~ TW4-2 111 It. Flow ,~.0 .. No Meter ~--1 '1 I '.l. D -~ ... No O'i'I~ TW4-11 411 ~ -re' Flow I,:". j .. No Meter /(.,0'-(~ &:'7 .. No IOiO<° TW4-21 '1H, ~~ Flow , (,. 2. "l&ss No Meter 1"'1~111n<1.An ,__ No oi-,,, TW4-37 .., .. ,. t'~ Flow J« IJ .... No Meter !If.In ti'),.,.~ l!l!S No og1, TW4-39 71/.t'~ Flow ,c n '11115. No Meter , , ".L , , '1 \ 1 ... No nq1.1 TW4-40 stn ,., -:t Flow 1# 0 .... No Meter i ::i &1<rtQ ,_ ~ _•,c, ~ No :nqott TW4-41 ~n nfl Flow , .. () -.e-No Meter ,,, ~ n o"' ~ ~ /,,. .. No Operational Problems (Please list well number): Corrective Action(s) Taken (Please list well number): ---------------- • Depth is measured to the nearest 0.01 feet. Date Weekly Inspection Form Nam@;Ld« ~IOt'«c., System Operational (If no note Time Well Depth* Comments anv problems/corrective actions) n<12~ MW-4 t.12.~(') Flow "' 11 .... No Meter -,, 11. ~r'l 1 q 2 ,_ No Oqlt.. MW-26 « <". ,_, I Flow 11. n ... No Meter ~~u~-J,✓-4 1 .. No 0'1"1n TW4-19 {,.q 7~ Flow It. n 11118 No Meter ~, , ~ 7,;. 1J 7 -No [Jq,:;"t TW4-4 "141. 4'-t Flow "· n 'II& No Meter 'i ,:;-n ~ 1 1 , -; ~ No n'A'II TWN-2 I.I lg Flow t I. n ~ No Meter :i ":1..1 t .3 n 7~ .... No n« <'~ TW4-22 I .. ~ /,.t;' Flow '"° ~ 1111115 No Meter 111 n ,rn rrn. 1 .,.,_ No n"' "I-« TW4-24 r..,q qi) Flow I 1 •. II 'Ille. No Meter ..1 'l ., ,. nn-r q :J. ... No o~~~ TW4-25 I.Cf. "1~ Flow ,..., n ..., No Meter ,,r.. q-, nnn , -, • No DQl.f n TW4-1 , n,1 ~., Flow 1'2 ~ ... No Meter '"'"" o~ ..,fl ~ !i!:8 No ()Q1.~ TW4-2 I I() n /,. Flow J ,. I'} '11M No Meter r:-.., ,f , 1 1,. /. -fas No l)q~:::, TW4-11 ff~,.,, Flow u. n 11N No Meter , ,. 1 t:: -r. t:; ff .. No o~~o TW4-21 -,c#'~ Flow a .. ~ Jiall No Meter "11-1,;rqJoc:,,. c; 2 1lr No IJ(J f) () TW4-37 "T~ ~q Flow I <l (J .... No Meter -i .,, n t:" 11 "' -,. ~ ~ No ncno TW4-39 -fl,J_".11 Flow I~ t) ... No Meter , , 'l. '-1-,-21 Q ... No (f)fl.07... TW4-40 ..,~ "3'1 Flow I "if.,? -No Meter , 2 -:-::1.. -, r., '1 '3 1!1115 No oq4 t. TW4-41 «a. '°/J Flow <. fl 11M No Meter ~<,,LI 1. on 1lllls 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 q _ &f:-J,'3 Name ,z;:::u,, ,<~ ,z;;;.0 ec 61ell-'4 ystem Operational (If no note Time Well Depth* Comments anv oroblems/corrective actions) ---'"' ..... ,.,, MW-4 "-I :7 '1 Flow .. , f) .. No Meter ~ 7i~ """-1 $IQ .,.. No ' flff "'-I MW-26 -t "I I -,_ Flow 1tt'.1'. .. No Meter Q1-1-ra"l.:1 n 1111; No f I <n TW4-19 '1 ~ ·~ Flow , ,;-: ~ --No Meter ruc;,u= 1 q .2 ~ No Joni. TW4-4 fl4l 1.f Flow 11.t n ... No Meter 'I. ~ n -rt:. -,. . .., ... No l)Clll>~ TWN-2 /.<I.-,,.., Flow ,~ 1? .... No Meter 2 ll ~ 1,;-,. "~ 1lilS No ,.,~, ~ TW4-22 "'10 14 Flow II,,. ~ 1-No Meter 1nn1,.~ t. ? .7 "Wis No nqnQ TW4-24 ,_q 2./. Flow II. I) ,... No Meter ~ ~ T CJ <i 1_ l l. .__ No n._ t::' t:. TW4-25 ;.q_ ,If Flow I "I• ,_, ~ No Meter , -r. n l.f I c; q-;:'I ~ ..,. No IJCl~.t:' TW4-1 '".l -rn Flow 12. ct .. No Meter """' n " "i,. , ~ No IJII~., TW4-2 q7 ~7 Flow I I. fl .. No Meter ~ ~~-« ~ -J. -, ... No ;')q-J"f TW4-11 qc;r ..,r,. Flow ,r:-/,. ... No ~ Meter ,,.-'.'.l ~,. '.1. 'l. .... No 09,;" I TW4-21 -, '2, £./9. Flow ,,A n ..... No Meter ~ ~ Q 4 ,_ n Q. t:'t:" ... No nq~.n TW4-37 -J':J. QI Flow 1(1 fl .... No Meter 21-1n-r,0In,'=I ... No I OCJ 2 .t:'" TW4-39 JIJ ~" Flow I-, ~ .. No Meter 11 '1 ,_ q&.1 n -, .. No 101< TW4-40 "T ".1 I A Flow ,~ n ,.. No Meter 1 '.:Ii:;-~ 1.Q ::i. .., "" ~ No 101>1 TW4-41 9:.« ct~ Flow L n I ... No Meter ,.,u;, q '-' n ~ 1 .. 'II$ No Operational Problems (Please list well number): Corrective Action{s) Taken (Please list well number): * Depth is measured to the nearest 0.01 feet. TabD Kriged Current Quarter Groundwater Contour Map, Details Map, and Depth to Water Summary Name: Tanner Holliday and Deen Lyman Date 9/25/2023 -9/28/2023 Depth to Depth lo Depth to Water Date Time Well Water (fl.) Date Time Well Water (ft.) Date Time Well (ft.) 9/28/2023 704 MW-01 65.18 9/25/2023 950 MW-04 81 22 9/28/2023 748 PIEZ-01 67.80 9/28/2023 1438 MW-02 I 09.44 9/25/2023 955 TW4-01 102.70 9/28/2023 729 PIEZ-02 47.72 9/28/2023 1356 MW-03A 83.83 9/25/2023 944 TW4-02 97 37 9/28/2023 1358 PIEZ-03A 57.68 9/28/2023 804 MW-05 107.62 9/28/2023 1433 TW4-03 66 03 9/28/2023 1417 PIEZ-04 69 55 9/28/2023 801 MW-II 85.08 9/25/2023 1006 TW4-04 88 15 9/28/2023 1419 PIEZ-05 67.88 9/28/2023 806 MW-12 109 17 9/28/2023 1440 TW4-05 73 38 9/28/2023 1409 TWN-01 71.00 9/28/2023 822 MW-14 101.07 9/28/2023 1426 TW4-06 80.58 9/28/2023 1424 TWN-02 61 15 9/28/2023 825 MW-15 104 86 9/28/2023 1428 TW4-07 84 23 9/28/2023 1404 TWN-03 44.45 9/28/2023 1353 MW-17 72.33 9/28/2023 1430 TW4-08 85.40 9/28/2023 1355 TWN-04 64.06 9/28/2023 754 MW-18 74.37 9/28/2023 1438 TW4-09 71 37 9/28/2023 745 TWN-06 81 24 9/28/2023 736 MW-19 67.08 9/28/2023 1442 TW4-10 70,73 9/28/2023 655 TWN-07 79 62 9/28/2023 1150 MW-20 84.78 9/25/2023 937 TW4-11 88.76 9/28/2023 723 TWN-14 58.91 9/28/2023 1304 MW-22 66.03 9/28/2023 1333 TW4-12 57 04 9/28/2023 716 TWN-16 48.02 9/28/2023 809 MW-23 113.73 9/28/2023 1338 TW4-13 57.99 9/28/2023 1351 TWN-18 63.20 9/28/2023 1427 MW-24A 109 58 9/28/2023 1342 TW4-14 77.36 9/28/2023 1422 TWN-19 53.77 9/28/2023 1429 MW-24 108.40 9/28/2023 1445 TW4-16 74.90 9/28/2023 854 TWN-20 78.26 9/28/2023 1450 MW-25 82.55 9/28/2023 1413 TW4-l8 74 52 9/28/2023 844 TWN-21 79.06 9/25/2023 931 MW-26 74,13 9/25/2023 1150 TW4-19 72.18 9/28/2023 1346 DR-05 83 00 9/28/2023 1346 MW-27 59.20 9/25/2023 1417 TW4-2l 72.17 9/28/2023 1343 DR-06 93,93 9/28/2023 1450 MW-28 74.46 9/25/2023 913 TW4-22 70.19 9/28/2023 830 DR-07 91.69 9/28/2023 757 MW-29 106 35 9/28/2023 1422 TW4-23 77.17 9/28/2023 1338 DR-08 51.45 9/28/2023 755 MW-30 75.30 9/25/2023 908 TW4-24 69 26 9/28/2023 1336 DR-09 86.34 9/28/2023 759 MW-31 69,74 9/25/2023 1420 TW4-25 69.68 9/28/2023 1333 DR-10 78.27 9/28/2023 1447 MW-32 83.45 9/28/2023 1424 TW4-26 75.79 9/28/2023 1404 DR-11 97.78 9/28/2023 815 MW-33 DRY 9/28/2023 1324 TW4-27 79.39 9/28/2023 1402 DR-12 DRY 9/28/2023 817 MW-34 106.99 9/28/2023 1334 TW4-28 50.57 9/28/2023 1400 DR-13 69.51 9/28/2023 812 MW-35 112 08 9/28/2023 1325 TW4-29 79.68 9/28/2023 1329 DR-14 75.94 9/28/2023 814 MW-36 l 10 36 9/28/2023 1330 TW4-30 75.37 9/28/2023 1248 DR-15 92.60 9/28/2023 819 MW-37 105 82 9/28/2023 1332 TW4-31 76,20 9/28/2023 1326 DR-17 64.47 9/28/2023 1301 MW-38 69.95 9/28/2023 1336 TW4-32 57 45 9/28/2023 1317 DR-19 63 16 9/28/2023 1257 MW-39 64,01 9/28/2023 1323 TW4-33 79 52 9/28/2023 1252 DR-20 55,61 9/28/2023 1350 MW-40 79.70 9/28/2023 1344 TW4-34 78 02 9/28/2023 1308 DR-21 100.22 9/28/2023 1434 MW-41B 108.72 9/28/2023 1327 TW4-35 75.97 9/28/2023 1322 DR-22 DRY MW-26=TW4-15 9/28/2023 1340 TW4-36 59 12 9/28/2023 1312 DR-23 70 25 MW-32=TW4-17 9/25/2023 920 TW4-37 72.81 9/28/2023 1320 DR-24 44.61 Comments: 9/28/2023 1436 TW4-38 61 27 9/25/2023 925 TW4-39 70.54 9/25/2023 1015 TW4-40 72.10 9/25/2023 1001 TW4-41 88.93 9/28/2023 1322 TW4-42 71.62 9/28/2023 1329 TW4-43 73.44 @ MW-41B -<?"5509 TW4-43 3:::E5523 TWN-20 CJ5554 TW4-42 ¢5523 estimated dry area perched monitoring well installed April, 2023 showing elevation in feet amsl temporary perched monitoring well installed September, 2021 showing elevation in feet amsl temporary perched nitrate monitoring well installed April, 2021 showing elevation in feet amsl temporary perched monitoring well installed April, 2019 showing elevation in feet amsl M;-;504 perched monitoring well showing elevation In feet ams! TW4--12 . . II 0 5567 temporary perched monitoring we showing elevation in feet amsl TWN-7 h d . . . <>5570 temporary perc e nitrate monitoring well showing elevation in feet amsl PIEZ-1 perched piezometer showing '-5588 elevation in feet amsl RUIN SPRING b 5380 seep or spring showing elevation in feet amsl DR-10 DR-11 . 5482 5,480 . 5488 \ \ \ \ \ \ \ \ I \ \ ' ..... ' ' ' .... ll:J!111;u1ll'ci TWN-15 .... ·""~$:"' ~-111:. - Jbc111gan2d TWN-11 ~ lli•,n3"i)II~ "IWN-ml v&.oli .... , T ® •i°"" Piei~~ _ _ TWf MW-19 "-----_,,,,,. ' ... _ ....__ -------£.~ ~--. ----... ~ ...:...•..-,· CCR 1111'1,'l'htc1 l'/&12 - NOTES: MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 are chloroform pumping wells; TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells; TW4-11 water level is below the base of the Burro Cany-on Formation HY□R □ GE□ KRIGED 3rd QUARTER, 2023 WATER LEVELS WHITE MESA SITE CHEM, INC. APPROVED DATE REFERENCE H:/718000/nov23/WL/Uwl0923,srf FIGURE D-1 ~ ""-??, rP, -0 I @ MW-41B -<?-5509 TW4-43 ~5523 ...__.iil'IIWY.,t./<' estimated chloroform capture zone boundary stream tubes resulting from pumping. (note: combined capture shown forMW-4, TW4-1, TW4-2, TW4-4, TW4-11. TW4-40andTW4-41; and for MW-26, TW4-19, TW4-21, TW4-25, TW4-37 and TW4-39) estimated nitrate capture zone boundary stream tube resulting from pumping. (note: combined capture shown for TW4-22 and TW4-24) estimated dry area perched monitoring well installed April, 2023 showing elevation in feet amsl temporary perched monitoring well installed September, 2021 showing elevation in feet amsl TWN-20 temporary perched nitrate monitoring CJ5554 well installed April, 2021showing elevation in feet amsl TW4-42 temporary perched monitoring well ¢ 5523 installed April, 2019 showing elevation in feet amsl M;-;504 perch~d monitoring well showing elevation In feet amsl TW4-12 . . 0 5567 temporary perched monitoring well ' showing elevation in feet amsl TWN-7 h d . . . A.5570 temporary perc e nitrate monitoring V well showing elevation in feet amsl PIEZ-1 perched piezometer showing "1 5588 elevation in feet amsl RUIN SPRING b 5380 seep or spring showing elevation in feet amsl DR-10 DR-11 . 5~D1 5480 . ::;,:,5 \ \ \ .tJ 1 mile \ \ \ \ \ \. \ ' ' '\. ' ... ..... -~ TWN:f' ,, •Ila ¥ lWN-11 -~ ~15 551111 ,.Jro\ -- 6: uw-le C ... ,rod, TWN~12 ~- 5400 "'SJ .. ;§.o RALSP.RI .·;.-l ~. ' -~ NOTEs;"iiiiw-4, MW-26, TW4-1, TW4-~~4-11 , ~4-197~~'.:z,, TW4-37, TW4-39, TW4-40 and TW4-41 are chloroform pumping wells; TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate puml)lr,9 wells; TW4-11 water level is below the base of the Burro Canyon FormaUon HY□R□ GE □ CHEM, INC. KRIGED 3rd QUARTER, 2023 WATER LEVELS AND ESTIMATED CAPTURE ZONES WHITE MESA SITE /\PPROVED DATE REFERENCE H:/718000/nov23/WL/Uwl0923cz2.srf FIGURE D-2 ' ' ' ' ' ' estimated chloroform capture zone boundary .P:; , stream tubes resulting from pumping. (note: c?" combined capture shown for MW-4, 1W4-1, TW4-2, TW4-4,TW4-11, lW4-40andTW4-41; 0 / and for MW-26. TW4-19, TW4-21, TW4-25, TW4-43 ~5523 TW4-42 ¢5523 MW-25 .5530 TW4-7 0 5537 TW4-37 and TW4-39) estimated nitrate capture zone boundary stream tube resulting from pumping. (note: combined capture shown for TW4-22 and TW4-24) temporary perched monitoring well installed September. 2021 showing elevation in feet amsl temporary perched monitoring well installed April, 2019 showing elevation in feet amsl perched monitoring well showing elevation in feet amsl temporary perched monitoring well showing elevation in feet amsl PIEZ-2 perched piezometer showing " 5581 elevation in feet amsl I/ - " •; ,..., ... _..,. ssuo 551.5 5555 -" ~~· 5540 --- ss21 , -s5.2s S§2ll ___ -:-· 553p TW4-2°}-0ifW~-JO_ _ ~·~~·._, 5 · , r..... •PA..T r - -~ ' Z\ • ' - 5535 ss32.s 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 HY□R□ KRIGED 3rd QUARTER, 2023 WATER LEVELS AND ESTIMATED CAPTURE ZONES WHITE MESA SITE detail ma GE□ CHEM.INC. APPROVED DATE REFERENCE H:/718000/nov23/WL/Uw0923cz.srf FIGURE D-3 TabE Kriged Previous Quarter Groundwater Contour Map @ MW-41B "9-5509 TW4-43 ~5524 TWN-20 [J5554 estimated dry area perched monitoring well installed April, 2023 showing elevation in feet amsl temporary perched monitoring well installed September, 2021 showing elevation in feet amsl temporary perched nitrate monitoring well installed April, 2021 showing elevation in feet amsl TW4-42 temporary perched monitoring well ¢ 5523 installed April, 2019 showing elevation in feet amsl MW-S h d ·t • II h • • 5504 perc -~ '"!loni onng we s owing elevation in feet amsl TW4-12 0 5568 temporary perched monitoring well showing elevation in feet amsl TWN-7 . . . A.5569 temporary perched nitrate monitoring V well showing elevation in feet amsl PIEZ-1 perched piezometer showing '-5588 elevation in feet amsl RUIN SPRING o 5380 seep or spring showing elevation in feet amsl I DR-10 DR-11 . 5482 5488 54ao .__ \ \ \ \ \ \ \ '\ \ \ ' \ ' ' ' .... - :1ban&o1ied TWN-15 ..... abang.oned TWN-11 ~~-d ™™· -;1,a11ioned ~6 TWN--09 s~I Plq'--01 .... ~8/ MW-19 -- - co ,t.a~~ncil ~ TWN-12 ~f 1\'JN•'I ;:; -5525 "~ R- 13 •••• ,~ MW- 14 ~_ ~~r . 55 2C ,..__ .'11 ~ 5510 ---......_ "-.......___ 5500 5490 54ao 5470 5100 \ ~ • ......._,, •.· .~ ... S, -~-· "Bo R~CSP" 1 mile ----.... ~.,~ rt1: ~ NQTE.S: MW-4, MW-26, TW4-1 , TW4-2, TW4~4, TW4-11, rw4:19, TV\14-21 , tw.4:37, TW4,39, TW4-40 and TW4-41 are chloroform pumping wells; TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells; TW4-1_._ TW4-2 and TW4-11 water levels are below-the _bese_<>fthe Burro Canyon FQrntatlon HYDRO GE □ CHEM, INC. KRIGED 2nd QUARTER, 2023 WATER LEVELS WHITE MESA SITE APPROVED DATE REFERENCE FIGURE H :/718000/aug23/WL/Uwl0623.srf E-1 Tab F Depths to Groundwater and Elevations and Hydrographs of Groundwater Elevations over Time for Chloroform Monitoring Wells Water Levels and Data over Time White Mesa Mill -Well MW 4 Total or Measuring Measured Total Water Land Point Date Of Depth to Depth to Total Elevation Surface Elevation Length Of Monitoring Water Water Depth Of (WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well 5,620.77 5,622.33 1.56 123.6 5,527.63 09/25/79 94.70 93.14 5,527.63 10/10/79 94.70 93.14 5,528.43 01/10/80 93.90 92.34 5,529.93 03/20/80 92.40 90.84 5,528.03 06/17/80 94.30 92.74 5,528.03 09/15/80 94.30 92.74 5,527.93 10/08/80 94.40 92.84 5,527.93 02/12/81 94.40 92.84 5,525.93 09/01/84 96.40 94.84 5,528.33 12/01/84 94.00 92.44 5,528.13 02/01/85 94.20 92.64 5,528.33 06/01/85 94.00 92.44 5,528.93 09/01/85 93.40 91.84 5,528.93 10/01/85 93.40 91.84 5,528.93 11/01/85 93.40 91.84 5,528.83 12/01/85 93.50 91.94 5,512.33 03/01/86 110.00 108.44 5,528.91 06/19/86 93.42 91.86 5,528.83 09/01/86 93.50 91.94 5,529.16 12/01/86 93.17 91.61 5,526.66 02/20/87 95.67 94.11 5,529.16 04/28/87 93.17 91.61 5,529.08 08/14/87 93.25 91.69 5,529.00 11/20/87 93.33 91.77 5,528.75 01/26/88 93.58 92.02 5,528.91 06/01/88 93.42 91.86 5,528.25 08/23/88 94.08 92.52 5,529.00 11/02/88 93.33 91.77 5,528.33 03/09/89 94.00 92.44 5,529.10 06/21/89 93.23 91.67 5,529.06 09/01/89 93.27 91.71 5,529.21 11/15/89 93.12 91.56 5,529.22 02/16/90 93.11 91.55 5,529.43 05/08/90 92.90 91.34 5,529.40 08/07/90 92.93 91.37 5,529.53 11/13/90 92.80 91.24 5,529.86 02/27/91 92.47 90.91 5,529.91 05/21/91 92.42 90.86 5,529.77 08/27/91 92.56 91.00 5,529.79 12/03/91 92.54 90.98 5,530.13 03/17/92 92.20 90.64 5,529.85 06/11/92 92.48 90.92 5,529.90 09/13/92 92.43 90.87 Water Levels and Data over Time White Mesa Mill -Well MW 4 Total or Measuring Measured Total Water Land Point Date Of Depth to Depth to Total Elevation Surface Elevation Length Of Monitoring Water Water Depth Of (WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well 5,620.77 5,622.33 1.56 123.6 5,529.92 12/09/92 92.41 90.85 5,530.25 03/24/93 92.08 90.52 5,530.20 06/08/93 92.13 90.57 5,530.19 09/22/93 92.14 90.58 5,529.75 12/14/93 92.58 91.02 5,530.98 03/24/94 91.35 89.79 5,531.35 06/15/94 90.98 89.42 5,531.62 08/18/94 90.71 89.15 5,532.58 12/13/94 89.75 88.19 5,533.42 03/16/95 88.91 87.35 5,534.70 06/27/95 87.63 86.07 5,535.44 09/20/95 86.89 85.33 5,537.16 12/11/95 85.17 83.61 5,538.37 03/28/96 83.96 82.40 5,539.10 06/07/96 83.23 81.67 5,539.13 09/16/96 83.20 81.64 5,542.29 03/20/97 80.04 78.48 5,551.58 04/07/99 70.75 69.19 5,552.08 05/11/99 70.25 68.69 5,552.83 07/06/99 69.50 67.94 5,553.47 09/28/99 68.86 67.30 5,554.63 01/03/00 67.70 66.14 5,555.13 04/04/00 67.20 65.64 5,555.73 05/02/00 66.60 65.04 5,556.03 05/11/00 66.30 64.74 5,555.73 05/15/00 66.60 65.04 5,555.98 05/25/00 66.35 64.79 5,556.05 06/09/00 66.28 64.72 5,556.18 06/16/00 66.15 64.59 5,556.05 06/26/00 66.28 64.72 5,556.15 07/06/00 66.18 64.62 5,556.18 07/13/00 66.15 64.59 5,556.17 07/18/00 66.16 64.60 5,556.26 07/25/00 66.07 64.51 5,556.35 08/02/00 65.98 64.42 5,556.38 08/09/00 65.95 64.39 5,556.39 08/15/00 65.94 64.38 5,556.57 08/31/00 65.76 64.20 5,556.68 09/08/00 65.65 64.09 5,556.73 09/13/00 65.60 64.04 5,556.82 09/20/00 65.51 63.95 5,556.84 09/29/00 65.49 63.93 5,556.81 10/05/00 65.52 63.96 Water Levels and Data over Time White Mesa Mill -Well MW 4 Total or MeasuriDg Measured Total Water Land Point Date Of Depth to Depth to Total Elevation Surface Elevation Length Of Monitoring Water Water Depth Of (WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well 5,620.77 5,622.33 1.56 123.6 5,556.89 10/12/00 65.44 63.88 5,556.98 10/19/00 65.35 63.79 5,557.01 10/23/00 65.32 63.76 5,557.14 11/09/00 65.19 63.63 5,557.17 11/14/00 65.16 63.60 5,556.95 11/21/00 65.38 63.82 5,557.08 11/30/00 65.25 63.69 5,557.55 12/07/00 64.78 63.22 5,557.66 01/14/01 64.67 63.11 5,557.78 02/09/01 64.55 62.99 5,558.28 03/29/01 64.05 62.49 5,558.23 04/30/01 64.10 62.54 5,558.31 05/31/01 64.02 62.46 5,558.49 06/22/01 63.84 62.28 5,558.66 07/10/01 63.67 62.11 5,559.01 08/20/01 63.32 61.76 5,559.24 09/19/01 63.09 61.53 5,559.26 10/02/01 63.07 61.51 5,559.27 11/08/01 63.06 61.50 5,559.77 12/03/01 62.56 61.00 5,559.78 01/03/02 62.55 60.99 5,559.96 02/06/02 62.37 60.81 5,560.16 03/26/02 62.17 60.61 5,560.28 04/09/02 62.05 60.49 5,560.76 05/23/02 61.57 60.01 5,560.58 06/05/02 61.75 60.19 5,560.43 07/08/02 61.90 60.34 5,560.44 08/23/02 61.89 60.33 5,560.71 09/11/02 61.62 60.06 5,560.89 10/23/02 61.44 59.88 5,557.86 11/22/02 64.47 62.91 5,561.10 12/03/02 61.23 59.67 5,561.39 01/09/03 60.94 59.38 5,561.41 02/12/03 60.92 59.36 5,561.93 03/26/03 60.40 58.84 5,561.85 04/02/03 60.48 58.92 5,536.62 05/01/03 85.71 84.15 5,528.56 06/09/03 93.77 92.21 5,535.28 07/07/03 87.05 85.49 5,534.44 08/04/03 87.89 86.33 5,537.10 09/11/03 85.23 83.67 5,539.96 10/02/03 82.37 80.81 5,535.91 11/07/03 86.42 84.86 Water Levels and Data over Time White Mesa Mill -Well MW 4 Total or Measuring Measured Total Water Land Point Date Of Depth to Depth to Total Elevation Surface Elevation Length Of Monitoring Water Water Depth Of (WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well 5,620.77 5,622.33 1.56 123.6 5,550.70 12/03/03 71.63 70.07 5,557.58 01/15/04 64.75 63.19 5,558.80 02/10/04 63.53 61.97 5,560.08 03/28/04 62.25 60.69 5,560.55 04/12/04 61.78 60.22 5,561.06 05/13/04 61.27 59.71 5,561.48 06/18/04 60.85 59.29 5,561.86 07/28/04 60.47 58.91 5,529.17 08/30/04 93.16 91.60 5,536.55 09/16/04 85.78 84.22 5,529.00 10/11/04 93.33 91.77 5,541.55 11/16/04 80.78 79.22 5,541.12 12/22/04 81.21 79.65 5,540.59 01/18/05 81.74 80.18 5,542.85 02/28/05 79.48 77.92 5,537.91 03/15/05 84.42 82.86 5,548.67 04/26/05 73.66 72.10 5,549.53 05/24/05 72.80 71.24 5,544.36 06/30/05 77.97 76.41 5,545.16 07/29/05 77.17 75.61 5,544.67 09/12/05 77.66 76.10 5,541.28 09/27/05 81.05 79.49 5,536.96 12/07/05 85.37 83.81 5,546.49 03/08/06 75.84 74.28 5,546.15 06/13/06 76.18 74.62 5,545.15 07/18/06 77.18 75.62 5,545.91 11/17/06 76.42 74.86 5,545.90 02/27/07 76.43 74.87 5,548.16 05/02/07 74.17 72.61 5,547.20 08/13/07 75.13 73.57 5,547.20 10/10/07 75.13 73.57 5,547.79 03/26/08 74.54 72.98 5,545.09 06/25/08 77.24 75.68 5,550.36 08/26/08 71.97 70.41 5,550.39 10/14/08 71.94 70.38 5,542.25 03/03/09 80.08 78.52 5,542.25 06/24/09 80.08 78.52 5,550.19 09/10/09 72.14 70.58 5,550.94 12/11/09 71.39 69.83 5,546.08 03/11/10 76.25 74.69 5,550.98 05/11/10 71.35 69.79 5,548.33 09/29/10 74.00 72.44 5,551.01 12/21/10 71.32 69.76 Water Levels and Data over Time White Mesa Mill -Well MW 4 Total or Measurina Measured Total Water Land Point Date Of Depth to Depth to Total Elevation Surface Elevation Length Of Monitoring Water Water Depth Of (WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well 5,620.77 5,622.33 1.56 123.6 5,547.00 02/28/11 75.33 73 .77 5,557.54 06/21/11 64.79 63 .23 5,551.14 09/20/11 71.19 69.63 5,550.32 12/21/11 72.01 70.45 5,551.22 03/27/12 71.11 69.55 5,551.29 06/28/12 71.04 69.48 5,550.29 09/27/12 72.04 70.48 5,549.31 12/28/12 73.02 71.46 5,552.30 03/28/13 70.03 68.47 5,550.18 06/27/13 72.15 70.59 5,552.55 09/27/13 69.78 68.22 5,553 .23 12/20/13 69.10 67.54 5,551.91 03/27/14 70.42 68.86 5,552.93 06/25/14 69.40 67.84 5,552.23 09/25/14 70.10 68.54 5,552.08 12/17/14 70.25 68.69 5,551.13 03/26/15 71.20 69.64 5,556.02 06/22/15 66.31 64.75 5,543.38 09/30/15 78.95 77.39 5,551.13 12/02/15 71.20 69.64 5,542.10 03/30/16 80.23 78 .67 5,542.31 06/30/16 80.02 78.46 5,540.96 09/29/16 81.37 79 .81 5,540.65 12/21/16 81.68 80.12 5,542.05 03/30/17 80.28 78 .72 5,550.28 06/27/17 72.05 70.49 5,534.84 09/28/17 87.49 85.93 5,532.41 11/30/17 89.92 88.36 5,534.64 03/28/18 87.69 86.13 5,539.53 06/22/18 82.80 81.24 5,537.04 09/24/18 85.29 83.73 5,537.82 12/1 7/18 84.51 82.95 5,536.10 03/25/19 86.23 84.67 5,536.20 06/24/19 86.13 84.57 5,538.67 08/12/19 83.66 82.10 5,533.67 11/18/19 88.66 87.10 5,525.79 02/10/20 96.54 94.98 5,533.63 05/04/20 88 .70 87.14 5,536.94 09/21/20 85.39 83.83 5,535.31 12/28/20 87 .02 85.46 5,539.70 03/11/21 82.63 81.07 5,540.44 06/24/21 81.89 80.33 5,540.65 08/l 3/21 81.68 80.12 Water Levels and Data over Time White Mesa Mill -Well MW 4 Total or Measuring Measured Total Water Land Point Date Of Depth to Depth to Total Elevation Surface Elevation Length Of Monitoring Water Water Depth Of (WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well 5,620.77 5,622.33 1.56 123.6 5,539.10 12/30/21 83.23 81.67 5,539.70 02/10/22 82.63 81.07 5,540.38 06/28/22 81.95 80.39 5,540.67 08/15/22 81.66 80.10 5,539.98 11/17/22 82.35 80.79 5,539.65 03/24/23 82.68 81.12 5,537.60 06/26/23 84.73 83.17 5,541.11 09/25/23 81.22 79.66 --N 0 0 0 Depth Below Measuring Point (ft.) 00 0 0\ 0 .j:s. 0 N 0 0 09/25/79 02/06/81 06/21/82 11/03/83 03/17/85 07/30/86 12/12/87 04/25/89 • 09/07/90 01/20/92 06/03/93 ~ ~ 10/16/94 ,&;;.. • 02/28/96 ~ 07/12/97 ...... ~ '"i 11/24/98 ~ ~ 04/07/00 "C ...... =-08/20/01 0 01/02/03 < ~ '"i 05/16/04 ~ .... • 09/28/05 a ~ -02/10/07 -? 06/24/08 C"' --11/06/09 a "C 03/21/11 - 08/02/12 12/15/13 04/29/15 09/10/16 01/23/18 06/07/19 10/19/20 03/03/22 07/16/23 11/27/24 04/11/26 Water Levels and Data over Time White Mesa Mill -Well TW 4-1 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well z 5,620.77 5,618.58 1.02 111.30 5,537.23 11/08/99 81.35 80.33 5,537.38 11/09/99 81.20 80.18 5,537.48 01/02/00 81.10 80.08 5,537.48 01/10/00 81.10 80.08 5,537.23 01/17/00 81.35 80.33 5,537.28 01/24/00 81.30 80.28 5,537.28 02/01/00 81.30 80.28 5,537.18 02/07/00 81.40 80.38 5,537.48 02/14/00 81.10 80.08 5,537.48 02/23/00 81.10 80.08 5,537.58 03/01/00 81.00 79.98 5,537.68 03/08/00 80.90 79.88 5,537.98 03/15/00 80.60 79.58 5,537.68 03/20/00 80.90 79.88 5,537.68 03/29/00 80.90 79.88 5,537.43 04/04/00 81.15 80.13 5,537.18 04/13/00 81.40 80.38 5,537.48 04/21/00 81.10 80.08 5,537.68 04/28/00 80.90 79.88 5,537.58 05/01/00 81.00 79.98 5,537.88 05/11/00 80.70 79.68 5,537.58 05/15/00 81.00 79.98 5,537.88 05/25/00 80.70 79.68 5,537.88 06/09/00 80.70 79.68 5,537.90 06/16/00 80.68 79.66 5,537.88 06/26/00 80.70 79.68 5,538.10 07/06/00 80.48 79.46 5,538.04 07/13/00 80.54 79.52 5,538.16 07/18/00 80.42 79.40 5,538.42 07/27/00 80.16 79.14 5,538.56 08/02/00 80.02 79.00 5,538.68 08/09/00 79.90 78.88 5,538.66 08/15/00 79.92 78.90 5,538.33 08/31/00 80.25 79.23 5,539.18 09/01/00 79.40 78.38 5,539.12 09/08/00 79.46 78.44 5,539.34 09/13/00 79.24 78.22 5,539.50 09/20/00 79.08 78.06 5,539.69 10/05/00 78.89 77.87 5,540.33 11/09/00 78.25 77.23 5,540.74 12/06/00 77.84 76.82 5,542.39 01/14/01 76.19 75.17 5,543.69 02/02/01 74.89 73.87 Water Levels and Data over Time White Mesa Mill -Well TW 4-1 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well z 5,620.77 5,618.58 1.02 111.30 5,544.96 03/29/01 73.62 72.60 5,545.45 04/30/01 73.13 72.11 5,545.89 05/31/01 72.69 71.67 5,546.19 06/21/01 72.39 71.37 5,546.50 07/10/01 72.08 71.06 5,547.18 08/20/01 71.40 70.38 5,547.59 09/19/01 70.99 69.97 5,547.84 10/02/01 70.74 69.72 5,548.12 11/08/01 70.46 69.44 5,548.65 12/03/01 69.93 68.91 5,548.87 01/03/02 69.71 68.69 5,549.37 02/06/02 69.21 68.19 5,550.00 03/26/02 68.58 67.56 5,550.22 04/09/02 68.36 67.34 5,550.81 05/23/02 67.77 66.75 5,550.79 06/05/02 67.79 66.77 5,551.08 07/08/02 67.50 66.48 5,551.54 08/23/02 67.04 66.02 5,551.79 09/11/02 66.79 65.77 5,552.19 10/23/02 66.39 65.37 5,552.27 11/22/02 66.31 65.29 5,552.48 12/03/02 66.10 65.08 5,552.74 01/09/03 65.84 64.82 5,552.92 02/12/03 65.66 64.64 5,553.40 03/26/03 65.18 64.16 5,553.48 04/02/03 65.10 64.08 5,552.32 05/01/03 66.26 65.24 5,550.53 06/09/03 68.05 67.03 5,550.09 07/07/03 68.49 67.47 5,549.64 08/04/03 68.94 67.92 5,549.31 09/11/03 69.27 68.25 5,549.58 10/02/03 69.00 67.98 5,549.50 11/07/03 69.08 68.06 5,550.07 12/03/03 68.51 67.49 5,551.86 01/15/04 66.72 65.70 5,552.57 02/10/04 66.01 64.99 5,553.63 03/28/04 64.95 63.93 5,554.04 04/12/04 64.54 63.52 5,554.60 05/13/04 63.98 62.96 5,556.28 06/18/04 62.30 61.28 5,556.61 07/28/04 61.97 60.95 5,554.21 08/30/04 64.37 63.35 5,553.49 09/16/04 65.09 64.07 Water Levels and Data over Time White Mesa Mill -Well TW 4-1 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well z 5,620.77 5,618.58 1.02 111.30 5,552.53 10/11/04 66.05 65.03 5,552.42 11/16/04 66.16 65.14 5,552.46 12/22/04 66.12 65.10 5,552.07 01/18/05 66.51 65.49 5,552.21 02/28/05 66.37 65.35 5,552.26 03/15/05 66.32 65.30 5,552.30 04/26/05 66.28 65.26 5,552.25 05/24/05 66.33 65.31 5,552.22 06/30/05 66.36 65.34 5,552.15 07/29/05 66.43 65.41 5,552.47 09/12/05 66.11 65.09 5,552.50 12/07/05 66.08 65.06 5,552.96 03/08/06 65.62 64.60 5,553.23 06/14/06 65.35 64.33 5,557.20 07/18/06 61.38 60.36 5,553.32 11/07 /06 65.26 64.24 5,554.35 02/27/07 64.23 63.21 5,554.07 05/02/07 64.51 63.49 5,554.07 08/14/07 64.51 63.49 5,553.88 10/10/07 64.70 63.68 5,555.73 03/26/08 62.85 61.83 5,556.60 06/24/08 61.98 60.96 5,556.83 08/26/08 61.75 60.73 5,556.87 10/14/08 61.71 60.69 5,556.90 03/10/09 61.68 60.66 5,556.91 06/24/09 61.67 60.65 5,556.61 09/10/09 61.97 60.95 5,556.78 12/11/09 61.8 60.78 5,556.75 03/11/10 61.83 60.81 5,556.19 05/11/10 62.39 61.37 5,555.26 09/29/10 63.32 62.30 5,554.66 12/21/10 63.92 62.90 5,554.74 02/28/11 63.84 62.82 5,554.57 06/21/11 64.01 62.99 5,554.13 09/20/11 64.45 63.43 5,554.54 12/21/11 64.04 63.02 5,553.64 03/27/12 64.94 63.92 5,553.66 06/28/12 64.92 63.90 5,553.73 09/27/12 64.85 63.83 5,553.59 12/28/12 64.99 63.97 5,554.73 03/28/13 63.85 62.83 5,554.44 06/27/13 64.14 63.12 5,554.37 09/27/13 64.21 63.19 Water Levels and Data over Time White Mesa Mill -Well TW 4-1 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well z 5,620.77 5,618.58 1.02 111.30 5,553.92 12/20/13 64.66 63.64 5,553.20 03/27/14 65.38 64.36 5,552.20 06/25/14 66.38 65.36 5,551.13 09/25/14 67.45 66.43 5,550.72 12/17/14 67.86 66.84 5,546.50 03/26/15 72.08 71.06 5,544.18 06/22/15 74.40 73.38 5,535.85 09/30/15 82.73 81.71 5,529.54 12/02/15 89.04 88.02 5,527.55 03/30/16 91.03 90.01 5,525.92 06/30/16 92.66 91.64 5,524.48 09/29/16 94.10 93.08 5,533.15 12/21/16 85.43 84.41 5,527.92 03/30/17 90.66 89.64 5,534.48 06/27/17 84.10 83.08 5,524.98 09/28/17 93.60 92.58 5,525.88 11/30/17 92.70 91.68 5,526.18 03/28/18 92.40 91.38 5,515.78 06/22/18 102.80 101.78 5,510.83 09/24/18 107.75 106.73 5,542.47 12/17/18 76.11 75.09 5,531.82 03/25/19 86.76 85.74 5,539.90 06/24/19 78.68 77.66 5,538.56 08/12/19 80.02 79.00 5,510.85 11/18/19 107.73 106.71 5,513.12 02/10/20 105.46 104.44 5,512.44 05/04/20 106.14 105.12 5,517.82 09/21/20 100.76 99.74 5,520.38 12/28/20 98.20 97.18 5,513.47 03/11/21 105.11 104.09 5,513.44 06/24/21 105.14 104.12 5,515.25 08/13/21 103.33 102.31 5,513.03 12/30/21 105.55 104.53 5,513.17 02/10/22 105.41 104.39 5,513.35 06/28/22 105.23 104.21 5,518.60 08/15/22 99.98 98.96 5,517.52 11/17/22 101.06 100.04 5,516.08 03/24/23 102.50 101.48 5,513.83 06/26/23 104.75 103.73 5,515.88 09/25/23 102.70 101.68 Depth Below Measuring Point (ft.) ---N -0 '-0 00 --.J 0\ Vl 0 0 0 0 0 0 0 0 11/08/99 09/03/00 06/30/01 04/26/02 02/20/03 12/17/03 10/12/04 08/08/05 06/04/06 >--3 03/31/07 ~ """ 01/25/08 I """" 11/20/08 ~ ...... 09/16/09 ~ ., 07/13/10 ~ ~ "C 05/09/11 ...... =- 03/04/12 0 -< 12/29/12 ~ ., >--3 10/25/13 .... a 08/21/14 ~ -06/17/15 ~ C"' -04/12/16 a "C 02/06/17 - 12/03/17 09/29/18 07/26/19 05/21/20 03/17/21 01/11/22 11/07/22 09/03/23 06/29/24 04/25/25 Water Levels and Data over Time White Mesa Mill -Well TW 4-2 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,623.10 5,624.72 1.62 120.900 5,548.57 11/08/99 76.15 74.53 5,548.57 11/09/99 76.15 74.53 5,548.32 01/02/00 76.40 74.78 5,548.52 01/10/00 76.20 74.58 5,548.32 01/17/00 76.40 74.78 5,548.72 01/24/00 76.00 74.38 5,548.62 02/01/00 76.10 74.48 5,548.62 02/07/00 76.10 74.48 5,549.02 02/14/00 75.70 74.08 5,549.12 02/23/00 75.60 73.98 5,549.22 03/01/00 75.50 73.88 5,549.32 03/08/00 75.40 73.78 5,549.22 03/15/00 75.50 73.88 5,549.92 03/20/00 74.80 73.18 5,549.72 03/29/00 75.00 73.38 5,549.42 04/04/00 75.30 73.68 5,549.52 04/13/00 75.20 73.58 5,549.72 04/21/00 75.00 73.38 5,549.82 04/28/00 74.90 73.28 5,549.82 05/01/00 74.90 73.28 5,550.12 05/11/00 74.60 72.98 5,549.82 05/15/00 74.90 73.28 5,550.12 05/25/00 74.60 72.98 5,550.12 06/09/00 74.60 72.98 5,550.22 06/16/00 74.50 72.88 5,550.07 06/26/00 74.65 73.03 5,550.17 07/06/00 74.55 72.93 5,550.17 07/13/00 74.55 72.93 5,550.18 07/18/00 74.54 72.92 5,550.33 07/27/00 74.39 72.77 5,550.38 08/02/00 74.34 72.72 5,550.40 08/09/00 74.32 72.70 5,550.42 08/15/00 74.30 72.68 5,550.54 08/31/00 74.18 72.56 5,550.87 09/08/00 73.85 72.23 5,550.97 09/13/00 73.75 72.13 5,551.04 09/20/00 73.68 72.06 5,545.83 10/05/00 78.89 77.27 5,546.47 11/09/00 78.25 76.63 5,546.88 12/06/00 77.84 76.22 5,552.18 01/26/01 72.54 70.92 5,552.20 02/02/01 72.52 70.90 5,551.10 03/29/01 73.62 72.00 Water Levels and Data over Time White Mesa Mill -Well TW 4-2 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,623.10 5,624.72 1.62 120.900 5,551.59 04/30/01 73.13 71.51 5,552.03 05/31/01 72.69 71.07 5,552.33 06/21/01 72.39 70.77 5,552.64 07/10/01 72.08 70.46 5,553.32 08/20/01 71.40 69.78 5,553.73 09/19/01 70.99 69.37 5,553.98 10/02/01 70.74 69.12 5,554.14 11/08/01 70.58 68.96 5,554.79 12/03/01 69.93 68.31 5,554.74 01/03/02 69.98 68.36 5,554.91 02/06/02 69.81 68.19 5,555.15 03/26/02 69.57 67.95 5,555.39 04/09/02 69.33 67.71 5,555.73 05/23/02 68.99 67.37 5,555.79 06/05/02 68.93 67.31 5,555.91 07/08/02 68.81 67.19 5,556.04 08/23/02 68.68 67.06 5,556.25 09/11/02 68.47 66.85 5,556.72 10/23/02 68.00 66.38 5,556.42 11/22/02 68.30 66.68 5,557.01 12/03/02 67.71 66.09 5,557.20 01/09/03 67.52 65.90 5,557.35 02/12/03 67.37 65.75 5,557.83 03/26/03 66.89 65 .27 5,557.87 04/02/03 66.85 65 .23 5,553.71 05/01/03 71.01 69.39 5,548.98 06/09/03 75.74 74.12 5,548.14 07/07/03 76.58 74.96 5,547.75 08/04/03 76.97 75.35 5,547.22 09/11 /03 77.50 75.88 5,547.68 10/02/03 77.04 75.42 5,547.52 11/07/03 77.20 75 .58 5,548.29 12/03/03 76.43 74.81 5,554.00 01/15/04 70.72 69.10 5,555.46 02/10/04 69.26 67.64 5,556.90 03/28/04 67.82 66.20 5,557.49 04/12/04 67.23 65 .61 5,558.07 05/13/04 66.65 65.03 5,558.19 06/18/04 66.53 64.91 5,559.00 07/28/04 65.72 64.10 5,554.26 08/30/04 70.46 68 .84 5,551.97 09/16/04 72.75 71.13 5,549.65 10/11 /04 75.07 73.45 Water Levels and Data over Time White Mesa Mill-Well TW4-2 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,623 .10 5,624.72 1.62 120.900 5,549.89 11/16/04 74.83 73 .21 5,550.37 12/22/04 74.35 72.73 5,549.95 01/18/05 74.77 73 .15 5,550.09 02/28/05 74.63 73.01 5,550.13 03/15/05 74.59 72.97 5,550.18 04/26/05 74.54 72.92 5,550.32 05/24/05 74.40 72.78 5,550.21 06/30/05 74.51 72.89 5,550.11 07/29/05 74.61 72.99 5,550.33 09/12/05 74.39 72.77 5,550.29 12/07/05 74.43 72 .81 5,551.30 03/08/06 73.42 71.80 5,551.42 06/14/06 73.30 71.68 5,550.52 07/18/06 74.20 72.58 5,550.52 11/07/06 74.20 72.58 5,552.89 02/27/07 71.83 70.21 5,552.06 05/02/07 72.66 71.04 5,552.02 08/14/07 72.70 71.08 5,552.20 10/10/07 72.52 70.90 5,554.58 03 /26/08 70.14 68 .52 5,555.23 06/24/08 69.49 67.87 5,555.29 08/26/08 69.43 67.81 5,555.43 10/14/08 69.29 67.67 5,555.73 03/10/09 68.99 67.37 5,556.25 06/24/09 68.47 66 .85 5,555.94 09/10/09 68.78 67 .16 5,556.53 12/11/09 68.19 66.57 5,557.87 03/11/10 66.85 65 .23 5,557.63 05/11/10 67.09 65.47 5,557.24 09/29/10 67.48 65 .86 5,557.00 12/21/10 67.72 66.10 5,557.61 02/28/11 67.11 65.49 5,557.58 06/21/11 67.14 65.52 5,557.46 09/20/11 67.26 65.64 5,557.84 12/21/11 66.88 65.26 5,557.86 03/27/12 66.86 65.24 5,557.87 06/28/12 66.85 65.23 5,557.46 09/27/12 67.26 65.64 5,557.82 12/28/12 66.90 65.28 5,559.39 03/28/13 65.33 63.71 5,559.21 06/27/13 65.51 63.89 5,559.26 09/27/13 65.46 63.84 5,559.27 12/20/13 65.45 63.83 Water Levels and Data over Time White Mesa Mill -Well TW 4-2 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,623.10 5,624.72 1.62 120.900 5,558.92 03/27/14 65.80 64.18 5,557.99 06/25/14 66.73 65.11 5,557.09 09/25/14 67.63 66.01 5,557.07 12/17114 67.65 66.03 5,549.93 03/26/15 74.79 73.17 5,551.30 06/22/15 73.42 71.80 5,547.12 09/30/15 77.60 75.98 5,538.34 12/02/15 86.38 84.76 5,542.22 03/30/16 82.50 80.88 5,538.31 06/30/16 86.41 84.79 5,536.70 09/29/16 88.02 86.40 5,540.40 12/21/16 84.32 82.70 5,536.61 03/30/17 88.11 86.49 5,547.16 06/27/17 77.56 75.94 5,522.65 09/28/17 102.07 100.45 5,532.64 11/30/17 92.08 90.46 5,506.94 03/28/18 117.78 116. I 6 5,521.60 06/22/18 103.12 101.50 5,510.01 09/24/18 114.71 113.09 5,543.01 12/17/18 81.71 80.09 5,522.70 03/25/19 102.02 100.40 5,522.49 06/24/19 102.23 100.61 5,522.29 08/12/19 102.43 100.81 5,515.62 11/18/19 109.10 107.48 5,516.60 02/10/20 108.12 106.5 5,514.51 05/04/20 110.21 108.59 5,522.29 09/21/20 102.43 I 00.81 5,521.08 12/28/20 103.64 102.02 5,513.42 03/11/21 111.30 109.68 5,513.51 06/24/21 111.21 109.59 5,526.62 08/13/21 98.10 96.48 5,514.01 12/30/21 110. 71 109.09 5,513.52 02/10/22 111.20 109.58 5,514.54 06/28/22 110.18 108.56 5,566.52 08/15/22 58.20 56.58 5,525.09 11/17/22 99.63 98.01 5,523.61 03/24/23 101.11 99.49 5,512.26 06/26/23 112.46 110.84 5,527.35 09/25/23 97.37 95.75 w 0 --tv 0 0 Depth Below Measuring Point (ft.) -0 0 '° 0 00 0 -.J 0 0\ 0 Ul 0 11/08/99 -09/03/00 -06/30/01 -04/26/02 -02/20/03 -12/17/03 10/12/04 08/08/05 06/04/06 ~ 03/31/07 ~ ,I:;,.. 01/25/08 I N 11/20/08 ~ 09/16/09 ...... ~ '"'I 07/13/10 ~ ~ "C 05/09/11 ...... =- 03/04/12 0 < 12/29/12 ~ '"'I ~ 10/25/13 -· a 08/21/14 ~ -06/17/15 ? O"' -04/12/16 a "C 02/06/17 - 12/03/17 09/29/18 07/26/19 05/21/20 -03/17/21 01/11/22 11/07/22 09/03/23 06/29/24 04/25/25 Water Levels and Data over Time White Mesa Mill -Well TW 4-3 Total or Measuring Measured Total Water Land Point Depth to Depth to Elevation Surface Elevation Length Of Date Of Water Water (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Total Depth Of Well 5,631.21 5,632.23 1.02 140.30 5,565.78 11/29/99 66.45 65.43 5,566.93 1/2/00 65.30 64.28 5,567.03 1/10/00 65.20 64.18 5,566.83 1/17/00 65.40 64.38 5,567.13 1/24/00 65.10 64.08 5,567.33 2/1/00 64.90 63.88 5,567.13 2/7/00 65.10 64.08 5,567.43 2/14/00 64.80 63.78 5,567.63 2/23/00 64.60 63.58 5,567.73 3/1/00 64.50 63.48 5,567.83 3/8/00 64.40 63.38 5,567.70 3/15/00 64.53 63.51 5,568.03 3/20/00 64.20 63.18 5,567.93 3/29/00 64.30 63.28 5,567.63 4/4/00 64.60 63.58 5,567.83 4/13/00 64.40 63.38 5,568.03 4/21/00 64.20 63.18 5,568.23 4/28/00 64.00 62.98 5,568.13 5/1/00 64.10 63.08 5,568.53 5/11/00 63.70 62.68 5,568.23 5/15/00 64.00 62.98 5,568.53 5/25/00 63.70 62.68 5,568.61 6/9/00 63.62 62.60 5,568.69 6/16/00 63.54 62.52 5,568.45 6/26/00 63.78 62.76 5,568.61 7/6/00 63.62 62.60 5,568.61 7/6/00 63.62 62.60 5,568.49 7/13/00 63.74 62.72 5,568.55 7 /18/00 63.68 62.66 5,568.65 7/27/00 63.58 62.56 5,568.73 8/2/00 63.50 62.48 5,568.77 8/9/00 63.46 62.44 5,568.76 8/16/00 63.47 62.45 5,568.95 8/31/00 63.28 62.26 5,568.49 9/8/00 63.74 62.72 5,568.67 9/13/00 63.56 62.54 5,568.96 9/20/00 63.27 62.25 5,568.93 10/5/00 63.30 62.28 5,569.34 11/9/00 62.89 61.87 5,568.79 12/6/00 63.44 62.42 5,569.11 1/3/01 63.12 62.10 5,569.75 2/9/01 62.48 61.46 5,570.34 3/28/01 61.89 60.87 Water Levels and Data over Time White Mesa Mill -Well TW 4-3 Total or Measuring Measured Total Water Land Point Depth to Depth to Elevation Surface Elevation Length Of Date Of Water Water (z) (L D) (MP) Riser (L) MonHoring (blw.MP) (blw.LSD) Total Depth Of Well 5,631.21 5 632.23 1.02 140.30 5,570.61 4/30/01 61.62 60.60 5,570.70 5/31/0 I 61.53 60.51 5,570.88 6/21/01 61.35 60.33 5,571.02 7/10/01 61.21 60.19 5,571.70 8/20/01 60.53 59.51 5,572.12 9/19/01 60.11 59.09 5,572.08 10/2/01 60.15 59.13 5,572.78 11/8/01 59.45 58.43 5,573.27 12/3/01 58.96 57.94 5,573.47 1/3/02 58.76 57.74 5,573.93 2/6/02 58.30 57.28 5,574.75 3/26/02 57.48 56.46 5,574.26 4/9/02 57.97 56.95 5,575.39 5/23/02 56.84 55.82 5,574.84 6/5/02 57.39 56.37 5,575.33 7/8/02 56.90 55.88 5,575.79 8/23/02 56.44 55.42 5,576.08 9/11/02 56.15 55.13 5,576.30 10/23/02 55.93 54.91 5,576.35 11/22/02 55.88 54.86 5,576.54 12/3/02 55.69 54.67 5,576.96 1/9/03 55.27 54.25 5,577.11 2/12/03 55.12 54.10 5,577.61 3/26/03 54.62 53.60 5,572.80 4/2/03 59.43 58.41 5,577.89 5/l/03 54.34 53.32 5,577.91 6/9/03 54.32 53.30 5,577.53 7/7/03 54.70 53.68 5,577.50 8/4/03 54.73 53.71 5,577.71 9/11/03 54.52 53.50 5,577.31 10/2/03 54.92 53.90 5,577.33 11/7/03 54.90 53.88 5,577.34 12/3/03 54.89 53.87 5,578.24 1/15/04 53.99 52.97 5,578.38 2/10/04 53.85 52.83 5,578.69 3/28/04 53.54 52.52 5,579.15 4/12/04 53.08 52.06 5,579.47 5/13/04 52.76 51.74 5,579.53 6/18/04 52.70 51.68 5,580.17 7/28/04 52.06 51.04 5,580.20 8/30/04 52.03 51.01 5,580.26 9/16/04 51.97 50.95 5,580.12 JO/I 1/04 52.11 51.09 Water Levels and Data over Time White Mesa Mill -Well TW 4-3 Total or Measuring Measured Total Water Land Point Depth to Depth to Elevation Surface Elevation Length Of Date Of Water Water (z) (LSD) (MP) Riser (L) Monitoring {blw.MP) (blw.LSD) Total Depth Of Well 5,631.21 5,632.23 1.02 140.30 5,579.93 11/16/04 52.30 51.28 5,580.07 12/22/04 52.16 51.14 5,579.80 1/18/05 52.43 51.41 5,580.35 2/28/05 51.88 50.86 5,580.57 3/15/05 51.66 50.64 5,580.86 4/26/05 51.37 50.35 5,581.20 5/24/05 51.03 50.01 5,581.51 6/30/05 50.72 49.70 5,581.55 7/29/05 50.68 49.66 5,581.68 9/12/05 50.55 49.53 5,581.83 12/7/05 50.40 49.38 5,564.92 3/8/06 67.31 66.29 5,582.73 6/13/06 49.50 48.48 5,582.33 7/18/06 49.90 48.88 5,582.75 11/7/06 49.48 48.46 5,583.35 2/27/07 48.88 47.86 5,559.57 5/2/07 72.66 71.64 5,583.29 8/14/07 48.94 47.92 5,583.49 10/10/07 48.74 47.72 5,584.95 3/26/08 47.28 46.26 5,584.59 6/24/08 47.64 46.62 5,584.55 8/26/08 47.68 46.66 5,584.03 10/14/08 48.20 47.18 5,583.64 3/3/09 48.59 47.57 5,587.34 6/24/09 44.89 43.87 5,582.90 9/10/09 49.33 48.3 l 5,583.27 12/11/09 48.96 47.94 5,583.63 3/11/10 48.60 47.58 5,583.82 5/11/10 48.41 47.39 5,583.51 9/29/10 48.72 47.70 5,582.86 12/21/10 49.37 48.35 5,582.60 2/28/11 49.63 48.61 5,590.00 6/21/11 42.23 41.21 5,582.70 9/20/11 49.53 48.51 5,583.05 12/21/11 49.18 48.16 5,581.93 3/27/12 50.30 49.28 5,582.03 6/28/12 50.20 49.18 5,582.08 9/27/12 50.15 49.13 5,581.94 12/28/12 50.29 49.27 5,581.52 3/28/13 50.71 49.69 5,580.88 6/27/13 51.35 50.33 5,580.58 9/27/13 51.65 50.63 5,580.38 12/20/13 51.85 50.83 Water Levels and Data over Time White Mesa Mill -Well TW 4-3 Total or Measuring Measured Total Water Land Point Depth to Depth to Elevation Surface Elevation Length Of Date Of Water Water (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Total Depth Of Well 5,631.21 5,632.23 1.02 140.30 5,579.62 3/27/14 52.61 51.59 5,578.52 6/25/14 53.71 52.69 5,577.59 9/25/14 54.64 53.62 5,577.40 12/17/14 54.83 53.81 5,576.73 3/26/15 55.50 54.48 5,576.62 6/22/15 55.61 54.59 5,576.16 9/30/15 56.07 55.05 5,575.57 12/2/15 56.66 55.64 5,575.62 3/30/16 56.61 55.59 5,574.89 6/30/16 57.34 56.32 5,574.37 9/29/16 57.86 56.84 5,574.23 12/21/16 58.00 56.98 5,574.23 3/30/17 58.00 56.98 5,573.72 6/27/17 58.51 57.49 5,573.28 9/28/17 58.95 57.93 5,572.66 11/30/17 59.57 58.55 5,572.19 3/28/18 60.04 59.02 5,571.83 6/22/18 60.40 59.38 5,571.34 9/25/18 60.89 59.87 5,570.99 12/17/18 61.24 60.22 5,570.21 3/25/19 62.02 61.00 5,570.28 6/24/19 61.95 60.93 5,570.04 8/12/19 62.19 61.17 5,569.68 11/18/19 62.55 61.53 5,569.35 2/10/20 62.88 61.86 5,568.92 5/4/20 63.31 62.29 5,568.38 9/22/20 63.85 62.83 5,568.28 12/30/20 63.95 62.93 5,568.31 3/11/21 63.92 62.90 5,567.65 6/24/21 64.58 63.56 5,567.61 8/13/21 64.62 63.60 5,567.72 12/30/21 64.51 63.49 5,567.15 2/10/22 65.08 64.06 5,567.57 6/28/22 64.66 63.64 5,566.83 8/15/22 65.40 64.38 5,566.63 11/17/22 65.60 64.58 5,566.89 3/24/23 65.34 64.32 5,566.44 6/26/23 65.79 64.77 5,566.20 9/28/23 66.03 65.01 -..J Vl -..J 0 Depth Below Measuring Point (ft.) O"I Vl O"I 0 Vl Vl Vl 0 .i:,. Vl .i:,. 0 1-----+---+-..!c---------l----+----+---------+---+ 11/29/99 04/27/00 09/24/00 02/21/01 07/21/01 12/18/01 05/17/02 10/14/02 03/13/03 08/10/03 01/07/04 06/05/04 11/02/04 04/01/05 08/29/05 01/26/06 06/25/06 11/22/06 04/21/07 09/18/07 02/15/08 07/14/08 -12/11/08 -05/10/09 -10/07/09 -03/06/10 -08/03/10 12/31/10 -05/30/11 10/27/11 03/25/12 08/22/12 -01/19/13 06/18/13 11/15/13 04/14/14 09/11/14 02/08/15 07/08/15 -12/05/15 05/03/16 -09/30/16 02/27/17 -07/27/17 12/24/17 05/23/18 -10/20/18 -03/19/19 08/16/19 01/13/20 06/11/20 -11/08/20 -04/07/21 -09/04/21 02/01/22 -07/01/22 11/28/22 04/27/23 09/24/23 02/21/24 07/20/24 '----~--~--~---~--~--~---~ 12/17/24 ~ ~ -,;... I w ~ ;- ""'i ~ n> "C ;. 0 -< n> ""'i ~ .... = n> -~ C"' -= "C _, Water Levels and Data over Time White Mesa Mill -Well TW 4-4 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) {MP) Riser {L) Monitoring (blw.MP) {blw.LSD) Well 5,612.301 5,613.485 1.184 114.5 5,512.15 05/25/00 101.34 100.16 5,518.99 06/09/00 94.50 93.32 5,512.15 06/16/00 101.34 100.16 5,517.47 06/26/00 96.02 94.84 5,520.15 07/06/00 93.34 92.16 5,521.44 07/13/00 92.05 90.87 5,522.01 07/18/00 91.48 90.30 5,522.95 07/27/00 90.54 89.36 5,523.49 08/02/00 90.00 88.82 5,523.85 08/09/00 89.64 88.46 5,523.89 08/15/00 89.60 88.42 5,524.56 09/01/00 88.93 87.75 5,513.24 09/08/00 100.25 99.07 5,516.67 09/13/00 96.82 95.64 5,519.09 09/20/00 94.40 93.22 5,522.17 10/05/00 91.32 90.14 5,524.67 11/09/00 88.82 87.64 5,518.55 12/06/00 94.94 93.76 5,527.70 01/03/01 85.79 84.61 5,529.09 02/09/01 84.40 83.22 5,529.54 03/27/01 83.95 82.77 5,530.24 04/30/01 83.25 82.07 5,530.27 05/31/01 83.22 82.04 5,534.41 06/22/01 79.08 77.90 5,533.15 07/10/01 80.34 79.16 5,534.04 08/20/01 79.45 78.27 5,534.47 09/19/01 79.02 77.84 5,533.29 10/02/01 80.20 79.02 5,533.87 11/08/01 79.62 78.44 5,534.28 12/03/01 79.21 78.03 5,534.72 01/03/02 78.77 77.59 5,535.44 02/06/02 78.05 76.87 5,536.45 03/26/02 77.04 75.86 5,536.41 04/09/02 77.08 75.90 5,537.34 05/23/02 76.15 74.97 5,537.33 06/05/02 76.16 74.98 5,537.98 07/08/02 75.51 74.33 5,538.83 08/23/02 74.66 73.48 5,539.28 09/11/02 74.21 73.03 5,539.77 10/23/02 73.72 72.54 5,540.21 11/22/02 73.28 72.10 5,540.30 12/03/02 73.19 72.01 5,540.80 01/09/03 72.69 71.51 Water Levels and Data over Time White Mesa Mill -Well TW 4-4 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (bh .MP) (blw.LSO) Well 5,612.301 5,613.485 1.184 114.5 5,540.99 02/12/03 72.50 71.32 5,541.68 03/26/03 71.81 70.63 5,541.77 04/02/03 71.72 70.54 5,541.89 05 /01/03 71.60 70.42 5,542.03 06/09/03 71.46 70.28 5,541.93 07/07/03 71.56 70.38 5,541.89 08/04/03 71.60 70.42 5,541.83 09/11/03 71.66 70.48 5,541.89 10/02/03 71.60 70.42 5,542.00 11 /07/03 71.49 70.31 5,542.01 12/03/03 71.48 70.30 5,542.56 01/15/04 70.93 69.75 5,542.71 02/10/04 70.78 69.60 5,543.23 03 /28/04 70.26 69.08 5,543.56 04/12/04 69.93 68.75 5,543.87 05/13/04 69.62 68.44 5,543.92 06/18/04 69.57 68.39 5,544.66 07/28/04 68.83 67.65 5,544.80 08/30/04 68.69 67.51 5,544.85 09/16/04 68.64 67.46 5,544.71 10/11/04 68.78 67.60 5,544.53 11/16/04 68.96 67.78 5,544.63 12/22/04 68.86 67.68 5,544.31 01 /18/05 69.18 68.00 5,544.59 02/28/05 68.90 67.72 5,544.69 03/15/05 68.80 67.62 5,544.68 04/26/05 68.81 67.63 5,544.79 05/24/05 68.70 67.52 5,544.80 06/30/05 68.69 67.51 5,544.78 07/29/05 68.71 67.53 5,545.01 09/12/05 68.48 67.30 5,545.23 12/07/05 68.26 67.08 5,545.74 03 /08/06 67.75 66.57 5,545.79 06/14/06 67.70 66.52 5,545.86 07/18/06 67.63 66.45 5,545.81 11/07/06 67.68 66.50 5,546.68 02/27/07 66.81 65.63 5,546.54 05/02/07 66.95 65.77 5,547.16 08/15/07 66.33 65.15 5,547.22 10/10/07 66.27 65 .09 5,548.31 03/26/08 65.18 64.00 5,548.87 06/24/08 64.62 63.44 5,549.24 08/26/08 64.25 63 .07 Water Levels and Data over Time White Mesa Mill -Well TW 4-4 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,612.301 5,613.485 1.184 114.5 5,549.31 10/14/08 64.18 63 .00 5,549.73 03/03/09 63.76 62.58 5,549.91 06/24/09 63.58 62.40 5,549.70 09/10/09 63.79 62.61 5,549.87 12/11/09 63.62 62.44 5,545.60 03/11/10 67.89 66.71 5,530.88 05/11/10 82.61 81.43 5,545.24 09/29/10 68.25 67.07 5,533.66 12/21/10 79.83 78.65 5,544.44 02/28/11 69.05 67.87 5,543.73 06/21/11 69.76 68.58 5,540.48 09/20/11 73.01 71.83 5,544.36 12/21/11 69.13 67.95 5,543.48 03/27 /12 70.01 68.83 5,543.49 06/28/12 70.00 68.82 5,543.36 09/27/12 70.13 68.95 5,543.51 12/28/12 69.98 68.80 5,543.49 03/28/13 70.00 68.82 5,543.36 06/27/13 70.13 68.95 5,544.59 09/27/13 68.90 67.72 5,543 .33 12/20/13 70.16 68.98 5,544.11 03/27/14 69.38 68.20 5,543.61 06/25/14 69.88 68.70 5,543.67 09/25/14 69.82 68.64 5,543.69 12/17/14 69.80 68.62 5,541.49 03/26/15 72.00 70.82 5,539.67 06/22/15 73.82 72.64 5,541.35 09/30/15 72.14 70.96 5,541.63 12/02/15 71.86 70.68 5,540.38 03/30/16 73.11 71.93 5,539.46 06/30/16 74.03 72.85 5,540.39 09/29/16 73.10 71.92 5,539.21 12/21/16 74.28 73.10 5,539.53 03/30/17 73.96 72.78 5,539.89 06/27/17 73.60 72.42 5,540.09 09/28/17 73.40 72.22 5,539.07 11/30/17 74.42 73.24 5,540.45 03/28/18 73.04 71.86 5,531.79 06/22/18 81.70 80.52 5,531.94 09/24/18 81.55 80.37 5,540.22 12/17/18 73.27 72.09 5,514.10 03/25/19 99.39 98 .21 5,529.11 06/24/19 84.38 83.20 Water Levels and Data over Time White Mesa Mill -Well TW 4-4 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,612.301 5,613.485 1.184 114.5 5,527.15 08/12/19 86.34 85.16 5,528.08 11/18/19 85.41 84.23 5,534.40 02/10/20 79.09 77.91 5,533.16 05/04/20 80.33 79.15 5,539.39 09/21/20 74.10 72.92 5,536.54 12/28/20 76.95 75.77 5,533.98 03/11/21 79.51 78.33 5,528.14 06/24/21 85.35 84.17 5,532.43 08/13/21 81.06 79.88 5,530.32 12/30/21 83.17 81.99 5,539.46 02/10/22 74.03 72.85 5,529.37 06/28/22 84.12 82.94 5,524.97 08/15/22 88.52 87.34 5,530.93 11/17/22 82.56 81.38 5,532.43 03/24/23 81.06 79.88 5,529.32 06/26/23 84.17 82.99 5,525.34 09/25/23 88.15 86.97 ...... ...... 0 ...... 0 0 Depth Below Measuring Point (ft.) "' 0 00 0 -.J 0 0\ 0 V, 0 I , : , 1, •+ - 1 1 • 1 • r 05125100 ~ • ► -~ ._ r 10122100 03/21/01 08/18/01 01/15/02 06/14/02 11/11/02 04/10/03 09/07/03 02/04/04 07/03/04 11/30/04 04/29/05 09/26/05 02/23/06 07/23/06 12/20/06 05/19/07 10/16/07 03/14/08 08/11/08 01/08/09 06/07/09 11/04/09 04/03/10 08/31/10 01/28/11 06/27/11 11/24/11 04/22/12 09/19/12 02/16/13 07/16/13 12/13/13 -05/12/14 10/09/14 03/08/15 -08/05/15 01/02/16 05/31/16 10/28/16 -03/27/17 -08/24/17 01/21/18 06/20/18 -11/17/18 -04/16/19 09/13/19 -02/10/20 07/09/20 12/06/20 -05/05/21 -10/02/21 -03/01/22 -07/29/22 -12/26/22 -05/25/23 10/22/23 03/20/24 08/17/24 .___ __ ___._ ___ ___._ ___ ---'-___ _,__ ___ ~ __ ____,__01/14/25 ~ ~ ,&.. I ,&.. ~ ...... ~ "1 ~ ~ "= ...... =-0 < ~ "1 ~ -· a ~ -? =---a "= - Water Levels and Data over Time White Mesa Mill -Well TW 4-5 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,638.75 5,640.70 1.95 121.85 5,579.30 01/02/00 61.40 59.45 5,579.60 01/10/00 61.10 59.15 5,579.35 01/17/00 61.35 59.40 5,579.60 01/24/00 61.10 59.15 5,579.50 02/01/00 61.20 59.25 5,579.50 02/07/00 61.20 59.25 5,579.90 02/14/00 60.80 58.85 5,579.90 02/23/00 60.80 58 .85 5,580.20 03/01/00 60.50 58 .55 5,580.00 03/08/00 60.70 58 .75 5,580.04 03/15/00 60.66 58 .71 5,580.70 03/20/00 60.00 58 .05 5,580.30 03 /29/00 60.40 58.45 5,580.00 04/04/00 60.70 58.75 5,580.20 04/13/00 60.50 58.55 5,580.40 04/21/00 60.30 58.35 5,580.50 04/28/00 60.20 58.25 5,580.50 05/01/00 60.20 58.25 5,580.90 05/11/00 59.80 57.85 5,580.50 05/15/00 60.20 58.25 5,580.75 05/25/00 59.95 58 .00 5,580.80 06/09/00 59.90 57 .95 5,580.92 06/16/00 59.78 57.83 5,580.80 06/26/00 59.90 57.95 5,580.90 07/06/00 59.80 57.85 5,581.05 07/13/00 59.65 57.70 5,580.90 07/18/00 59.80 57.85 5,581.05 07/27/00 59.65 57.70 5,581.06 08/02/00 59.64 57.69 5,581.08 08/09/00 59.62 57.67 5,581.07 08/16/00 59.63 57.68 5,581.25 08/31/00 59.45 57.50 5,581.32 09/08/00 59.38 57.43 5,581.34 09/13/00 59.36 57.41 5,581.41 09/20/00 59.29 57.34 5,581.37 10/05/00 59.33 57.38 5,581.66 11/09/00 59.04 57.09 5,581.63 12/06/00 59.07 57.12 5,581.92 01/03/01 58.78 56.83 5,582.20 02/09/01 58.50 56.55 5,582.54 03/28/01 58.16 56.21 5,582.72 04/30/01 57.98 56.03 5,582.72 05/31/01 57.98 56.03 5,582.81 06/22/01 57.89 55.94 5,582.92 07/10/01 57.78 55.83 5,583.17 08/20/01 57.53 55.58 Water Levels and Data over Time White Mesa Mill -Well TW 4-5 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,638.75 5,640.70 1.95 121.85 5,583.28 09/19/01 57.42 55.47 5,583 .36 10/02/01 57.34 55.39 5,583.49 11/08/01 57.21 55.26 5,583.84 12/03/0 l 56.86 54.91 5,583.79 01/03/02 56.91 54.96 5,583.96 02/06/02 56.74 54.79 5,584.39 03/26/02 56.31 54.36 5,584.12 04/09/02 56.58 54.63 5,584.55 05/23/02 56.15 54.20 5,584.42 06/05/02 56.28 54.33 5,583 .65 07/08/02 57.05 55.10 5,584.90 08/23/02 55.80 53.85 5,585.02 09/11/02 55.68 53 .73 5,585.20 10/23/02 55.50 53.55 5,585.15 11/22/02 55.55 53 .60 5,585.42 12/03/02 55.28 53 .33 5,585.65 01/09/03 55.05 53.10 5,585.65 02/12/03 55.05 53.10 5,585.92 03/26/03 54.78 52.83 5,586.22 04/02/03 54.48 52.53 5,586.01 05/01/03 54.69 52.74 5,584.81 06/09/03 55.89 53.94 5,584.34 07/07/03 56.36 54.41 5,584.40 08/04/03 56.30 54.35 5,583.88 09/11/03 56.82 54.87 5,583.57 10/02/03 57.13 55.18 5,583.39 11/07 /03 57.31 55.36 5,583.97 12/03/03 56.73 54.78 5,585.28 01/15/04 55.42 53.47 5,585.50 02/10/04 55.20 53.25 5,585.87 03/28/04 54.83 52.88 5,586.20 04/12/04 54.50 52.55 5,586.45 05/13/04 54.25 52.30 5,586.50 06/18/04 54.20 52.25 5,587.13 07/28/04 53.57 51 .62 5,586.22 08/30/04 54.48 52.53 5,585.69 09/16/04 55.01 53.06 5,585.17 10/11/04 55.53 53.58 5,584.64 11/16/04 56.06 54.11 5,584.77 12/22/04 55.93 53.98 5,584.65 01/18/05 56.05 54.10 5,584.98 02/28/05 55.72 53.77 5,585.15 03/15/05 55 .55 53.60 5,586.25 04/26/05 54.45 52.50 5,586.79 05/24/05 53.91 51.96 5,586.52 06/30/05 54.18 52.23 Water Levels and Data over Time White Mesa Mill -Well TW 4-5 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (b lw.LSD) Well 5,638.75 5,640.70 1.95 121.85 5,586.03 07/29/05 54.67 52.72 5,586.05 09/12/05 54.65 52.70 5,585.80 12/07/05 54.90 52.95 5,587.06 03/08/06 53.64 51.69 5,585.90 06/13/06 54.80 52.85 5,585.32 07/18/06 55.38 53.43 5,585.35 11/07/06 55.35 53.40 5585.81 02/27/07 54.89 52.94 5,585.20 05/02/07 55.50 53.55 5,586.66 08/14/07 54.04 52.09 5,586.80 10/10/07 53.90 51.95 5,588.48 03/26/08 52.22 50.27 5,586.51 06/24/08 54.19 52.24 5,586.45 08/26/08 54.25 52.30 5,585.40 10/14/08 55.30 53.35 5,584.80 03/03/09 55.90 53.95 5,584.73 06/24/09 55.97 54.02 5,584.36 09/10/09 56.34 54.39 5,585.02 12/11/09 55.68 53.73 5,585.66 03/11/10 55.04 53.09 5,584.86 05/11/10 55.84 53.89 5,584.55 09/29/10 56.15 54.20 5,584.17 12/21/10 56.53 54.58 5,583.55 02/28/11 57.15 55.20 5,584.72 06/21/11 55.98 54.03 5,584.62 09/20/11 56.08 54.13 5,585.04 11/21/11 55.66 53.71 5,583.89 03/27/12 56.81 54.86 5,583.92 06/28/12 56.78 54.83 5,583.89 09/27/12 56.81 54.86 5,583.89 12/28/12 56.81 54.86 5,582.88 03/28/13 57.82 55.87 5,582.05 06/27/13 58.65 56.70 5,581.35 09/27/13 59.35 57.40 5,580.52 12/20/13 60.18 58.23 5,579.44 03/27/14 61.26 59.31 5,578.11 06/25/14 62.59 60.64 5,577.15 09/25/14 63.55 61.60 5,577.44 12/17/14 63.26 61.31 5,577.37 03/26/15 63.33 61.38 5,577.46 06/22/15 63.24 61.29 5,576.92 09/30/15 63.78 61.83 5,576.33 12/02/15 64.37 62.42 5,576.30 03/30/16 64.40 62.45 5,575.72 06/30/16 64.98 63.03 5,575.12 09/29/16 65.58 63.63 Water Levels and Data over Time White Mesa Mill -Well TW 4-5 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,638.75 5,640.70 1.95 121.85 5,574.77 12/21/16 65.93 63.98 5,575.03 03/30/17 65.67 63.72 5,574.55 06/27/17 66.15 64.20 5,574.09 09/28/17 66.61 64.66 5,573.48 11/30/17 67.22 65.27 5,573.05 03/28/18 67.65 65.70 5,572.68 06/22/18 68.02 66.07 5,571.89 09/24/18 68.81 66.86 5,571.86 12/17/18 68.84 66.89 5,571.15 03/25/19 69.55 67.60 5,571.26 06/24/19 69.44 67.49 5,571.12 08/12/19 69.58 67.63 5,570.73 11/18/19 69.97 68.02 5,570.50 02/10/20 70.20 68.25 5,570.15 05/04/20 70.55 68.60 5,569.36 09/22/20 71.34 69.39 5,569.17 12/30/20 71.53 69.58 5,569.24 03/11/21 71.46 69.51 5,568.71 06/24/21 71.99 70.04 5,568.68 08/13/21 72.02 70.07 5,568.99 12/30/21 71.71 69.76 5,568.23 02/10/22 72.47 70.52 5,568.73 06/28/22 71.97 70.02 5,568.04 08/15/22 72.66 70.71 5,567.85 11/17/22 72.85 70.9 5567.40 03/24/23 73.30 71.35 5567.39 06/26/23 73.31 71.36 5567.32 09/28/23 73.38 71.43 --.J V, --.J 0 Depth Below Measuring Point (ft.) 0\ V, 0\ 0 V, V, V, 0 1-------+---------~---------i----------t-01/02/00 05/31/00 -10/28/00 -03/27/01 -08/24/01 01/21/02 06/20/02 -11/17/02 -04/16/03 -09/13/03 02/10/04 -07/09/04 -12/06/04 05/05/05 -10/02/05 03/01/06 -07/29/06 12/26/06 -05/25/07 10/22/07 03/20/08 -08/17/08 -01/14/09 -06/13/09 11/10/09 -04/09/10 09/06/10 -02/03/11 07/03/11 11/30/11 04/28/12 09/25/12 -02/22/13 07/22/13 12/19/13 -05/18/14 10/15/14 -03/14/15 08/11/15 01/08/16 06/06/16 -11/03/16 04/02/17 08/30/17 01/27/18 06/26/18 11/23/18 04/22/19 09/19/19 02/16/20 07/15/20 12/12/20 05/11/21 10/08/21 03/07/22 08/04/22 01/01/23 05/31/23 10/28/23 03/26/24 08/23/24 L--___ ______._ ____ __.__ ___ ____...__ ___ __._ ___ __._ 01/20/25 ~ ~ ,&;;;.. I U'I ~ ...... ~ .., ~ ~ "'C ...... =-0 -< ~ .., ~ -· = ~ --~ C"' -= "'C - Water Levels and Data over Time White Mesa Mill -Well TW 4-6 Total or Measuring Measured Total Total Water Land Point Depth to Depth to Depth Of Elevation Surface Elevation Length Of Date Of Water Water Well (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD) 5,607.33 5,608.78 1.450 99.60 5,522.28 05/25/00 86.50 85.05 5,521 .51 06/09/00 87.27 85.82 5,522.35 06/16/00 86.43 84.98 5,522.14 06/26/00 86 .64 85.19 5,522.25 07/06/00 86.53 85.08 5,522.13 07/13/00 86.65 85.20 5,522.17 07/18/00 86.61 85.16 5,522.26 07/25/00 86.52 85.07 5,522.31 08/02/00 86.47 85.02 5,522.33 08/09/00 86.45 85.00 5,522.35 08/15/00 86.43 84.98 5,522.40 08/31 /00 86.38 84.93 5,522.40 09/08/00 86 .38 84.93 5,522.45 09/13/00 86.33 84.88 5,522.53 09/20/00 86.25 84.80 5,522.39 10/05/00 86.39 84.94 5,522.42 11/09/00 86.36 84.91 5,522.29 12/06/00 86.49 85.04 5,522.63 01 /03/01 86.15 84.70 5,522.72 02/09/01 86 .06 84.61 5,522.90 03/26/01 85 .88 84.43 5,522.70 04/30/01 86.08 84.63 5,522.89 05/31/01 85.89 84.44 5,522.88 06/20/01 85.90 84.45 5,522.96 07/10/01 85.82 84.37 5,523.10 08/20/01 85.68 84.23 5,523.23 09/19/01 85.55 84.10 5,523.21 10/02/01 85.57 84.12 5,523.25 11/08/01 85.53 84.08 5,523.46 12/03/01 85.32 83.87 5,523.36 01 /03/02 85.42 83.97 5,523.50 02/06/02 85.28 83.83 5,523.94 03/26/02 84.84 83.39 5,523.75 04/09/02 85.03 83 .58 5,524.23 05/23/02 84.55 83 .10 5,523.98 06/05/02 84.80 83.35 5,524.31 07/08/02 84.47 83 .02 5,524.36 08/23/02 84.42 82.97 5,524.49 09/11 /02 84.29 82.84 5,524.71 10/23/02 84.07 82.62 5,524.60 11 /22/02 84.18 82.73 5,524.94 12/03/02 83.84 82.39 5,525.10 01/09/03 83.68 82.23 5,525.15 02/12/03 83.63 82.18 5,525.35 03 /26/03 83.43 81.98 5,525.68 04/02/03 83.10 81.65 Water Levels and Data over Time White Mesa Mill -Well TW 4-6 Total or Measuring Measured Total Total Water Land Point Depth to Depth to Depth Of Elevation Surface Elevation Length Of Date Of Water Water Well (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) {blw.LSD) (blw.LSD) 5,607.33 5,608.78 1.450 99.60 5,525.74 05/01/03 83.04 81.59 5,525.98 06/09/03 82.80 81.35 5,526.04 07/07/03 82.74 81.29 5,526.07 08/04/03 82.71 81.26 5,526.42 09/11/03 82.36 80.91 5,526.30 10/02/03 82.48 81.03 5,526.41 11/07/03 82.37 80.92 5,526.46 12/03/03 82.32 80.87 5,526.83 01/15/04 81.95 80.50 5,526.81 02/10/04 81.97 80.52 5,527.14 03/28/04 81.64 80.19 5,527.39 04/12/04 81.39 79.94 5,527.64 05/13/04 81.14 79.69 5,527.70 06/18/04 81.08 79.63 5,528.16 07/28/04 80.62 79.17 5,528.30 08/30/04 80.48 79.03 5,528.52 09/16/04 80.26 78.81 5,528.71 10/11/04 80.07 78.62 5,528.74 11/16/04 80.04 78.59 5,529.20 12/22/04 79.58 78.13 5,528.92 01/18/05 79.86 78 .41 5,529.51 02/28/05 79.27 77.82 5,529.74 03/15/05 79.04 77.59 5,529.96 04/26/05 78.82 77.37 5,530.15 05/24/05 78.63 77.18 5,530.35 06/30/05 78.43 76.98 5,530.47 07/29/05 78.31 76.86 5,530.95 09/12/05 77.83 76.38 5,531.50 12/07/05 77.28 75.83 5,532.43 03/08/06 76.35 74.90 5,533.49 06/13/06 75.29 73.84 5,532.58 07/18/06 76.20 74.75 5,532.88 11/07/06 75.90 74.45 5534.09 02/27/07 74.69 73.24 5,534.04 05/02/07 74.74 73.29 5,534.43 08/14/07 74.35 72.90 5,554.54 10/10/07 54.24 52.79 5,535.40 03/26/08 73.38 71.93 5,535.55 06/24/08 73.23 71.78 5,535.90 08/26/08 72.88 71.43 5,535.87 10/14/08 72.91 71.46 5,536.42 03/10/09 72.36 70.91 5,536.71 06/24/09 72.07 70.62 5,536.83 09/10/09 71.95 70.50 5,537.35 12/11/09 71.43 69.98 5,537.93 03/11/10 70.85 69.40 Water Levels and Data over Time White Mesa Mill -Well TW 4-6 Total or Measuring Measured Total Total Water Land Point Depth to Depth to Depth Of Elevation Surface Elevation Length Of Date Of Water Water Well (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD) 5,607.33 5,608.78 1.450 99.60 5,538.14 05/11/10 70.64 69.19 5,538.03 09/29/10 70.75 69.30 5,538.04 12/21/10 70.74 69.29 5,537.98 02/28/11 70.80 69.35 5,538.46 06/21/11 70.32 68.87 5,538.37 09/20/11 70.41 68.96 5,538.87 12/21/11 69.91 68.46 5,538.73 03/27/12 70.05 68.60 5,538.80 06/28/12 69.98 68.53 5,539.04 09/27/12 69.74 68.29 5,538.74 12/28/12 70.04 68.59 5,539.53 03/28/13 69.25 67.80 5,539.46 06/27/13 69.32 67.87 5,539.62 09/27/13 69.16 67.71 5,539.85 12/20/13 68.93 67.48 5,539.65 03/27/14 69.13 67.68 5,538.85 06/25/14 69.93 68.48 5,538.69 09/25/14 70.09 68.64 5,538.71 12/17/14 70.07 68.62 5,538.03 03/26/15 70.75 69.30 5,537.78 06/22/15 71.00 69.55 5,537.40 09/30/15 71.38 69.93 5,537.44 12/02/15 71.34 69.89 5,536.76 03/30/16 72.02 70.57 5,536.08 06/30/16 72.70 71.25 5,535.54 09/29/16 73.24 71.79 5,535.38 12/21/16 73.40 71.95 5,535.48 03/30/17 73.30 71.85 5,535.13 06/27/17 73.65 72.20 5,534.78 09/28/17 74.00 72.55 5,534.54 11/30/17 74.24 72.79 5,534.38 03/28/18 74.40 72.95 5,533.92 06/22/18 74.86 73.41 5,533.49 09/25/18 75.29 73.84 5,533.17 12/17/18 75.61 74.16 5,532.63 03/25/19 76.15 74.70 5,532.56 06/24/19 76.22 74.77 5,532.28 08/12/19 76.50 75.05 5,531.69 11/18/19 77.09 75.64 5,531.34 02/10/20 77.44 75.99 5,530.76 05/04/20 78.02 76.57 5,530.36 09/22/20 78.42 76.97 5,530.29 12/30/20 78.49 77.04 5,530.20 03/11/21 78.58 77.13 5,529.69 06/24/21 79.09 77.64 5,529.67 08/13/21 79.11 77.66 Water Levels and Data over Time White Mesa Mill -Well TW 4-6 Total or Measuring Measured Total Total Water Land Point Depth to Depth to Depth Of Elevation Surface Elevation Length Of Date Of Water Water Well (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD) 5,607.33 5,608.78 1.450 99.60 5,529.78 12/30/21 79.00 77.55 5,529.23 02/10/22 79.55 78.10 5,529.65 06/28/22 79.13 77.68 5,528.84 08/15/22 79.94 78.49 5,528.58 11/17/22 80.20 78.75 5,528.28 03/24/23 80.50 79.05 5,528.43 06/26/23 80.35 78.90 5,528.20 09/28/23 80.58 79.13 \0 0 00 V, 00 0 Depth Below Measuring Point (ft.) -.J V, -.J 0 °' V, °' 0 V, V, V, 0 05/25/00 10/22/00 03/21/01 08/18/01 01/15/02 06/14/02 11/11/02 04/10/03 09/07/03 02/04/04 07/03/04 11/30/04 04/29/05 09/26/05 02/23/06 07/23/06 12/20/06 ""'3 05/19/07 ~ 10/16/07 03/14/08 ,i;,.. I 08/11/08 °' 01/08/09 ~ 06/07/09 11/04/09 ..... ('D 04/03/10 '"'I -08/31/10 t, 01/28/11 ('D "!:I 06/27/11 ..... -11/24/11 =- -04/22/12 0 -09/19/12 < ('D -02/16/13 '"'I 07/16/13 ""'3 12/13/13 -· a 05/12/14 ('D 10/09/14 -03/08/15 ? 08/05/15 O"' 01/02/16 -05/31/16 a 10/28/16 "!:I -03/27/17 08/24/17 -01/21/18 06/20/18 11/17/18 04/16/19 09/13/19 -02/10/20 07/09/20 12/06/20 -05/05/21 10/02/21 -03/01/22 07/29/22 12/26/22 05/25/23 10/22/23 03/20/24 08/17/24 01/14/25 Water Levels and Data over Time White Mesa Mill -Well TW4-7 Measuring Total or Total Water Land Measured Total Depth Elevation Surface Point Length Of Date Of Depth to Depth to Of Well Elevation Riser (L) Monitoring Water (WL) {LSD) (MP) Water (blw.LSD) (blw.LSD) (blw.MPl 5,619.87 5,621.07 1.20 121.0 5,552.37 11/29/99 68.70 67.50 5,553.57 01/02/00 67.50 66.30 5,553.87 01/10/00 67.20 66.00 5,553.72 01/17/00 67.35 66.15 5,553.97 01/24/00 67.10 65.90 5,553.87 02/01/00 67.20 66.00 5,553.87 02/07/00 67.20 66.00 5,554.17 02/14/00 66.90 65.70 5,554.27 02/23/00 66.80 65.60 5,554.37 03/01/00 66.70 65.50 5,554.37 03/08/00 66.70 65.50 5,554.27 03/15/00 66.80 65.60 5,554.77 03/20/00 66.30 65.10 5,554.57 03/29/00 66.50 65.30 5,554.27 04/04/00 66.80 65.60 5,554.57 04/13/00 66.50 65.30 5,554.77 04/21/00 66.30 65.10 5,554.87 04/28/00 66.20 65.00 5,554.87 05/01/00 66.20 65.00 5,555.27 05/11/00 65.80 64.60 5,554.97 05/15/00 66.10 64.90 5,555.27 05/25/00 65.80 64.60 5,555.33 06/09/00 65.74 64.54 5,555.45 06/16/00 65.62 64.42 5,555.22 06/26/00 65.85 64.65 5,555.45 07/06/00 65.62 64.42 5,555.40 07/13/00 65.67 64.47 5,555.45 07/18/00 65.62 64.42 5,555.59 07/27/00 65.48 64.28 5,555.65 08/02/00 65.42 64.22 5,555.70 08/09/00 65.37 64.17 5,555.74 08/16/00 65.33 64.13 5,555.96 08/31/00 65.11 63.91 5,555.87 09/08/00 65.20 64.00 5,555.95 09/13/00 65.12 63.92 5,556.05 09/20/00 65.02 63.82 5,556.06 10/05/00 65.01 63.81 5,556.17 10/12/00 64.90 63.70 5,556.20 10/19/00 64.87 63.67 5,556.22 10/23/00 64.85 63.65 5,556.36 11/09/00 64.71 63.51 5,556.42 11/14/00 64.65 63.45 5,556.45 11/30/00 64.62 63.42 5,556.15 12/06/00 64.92 63.72 Water Levels and Data over Time White Mesa Mill -Well TW4-7 Measuring Total or Total Water Land Point Length Of Date Of Measured Depth to Total Depth Elevation Surface Elevation Riser (L) Monitoring Depth to Water Of Well (WL) (LSD) (MP) Water (blw.LSD) (blw.LSD) (blw.MPl 5,619.87 5,621.07 1.20 121.0 5,556.89 01/14/01 64.18 62.98 5,557.07 02/09/01 64.00 62.80 5,557.62 03/29/01 63.45 62.25 5,557.51 04/30/01 63.56 62.36 5,557.77 05/31/01 63.30 62.10 5,557.84 06/21/01 63.23 62.03 5,557.98 07/10/01 63.09 61.89 5,558.33 08/20/01 62.74 61.54 5,558.57 09/19/01 62.50 61.30 5,558.53 10/02/01 62.54 61.34 5,558.62 11/08/01 62.45 61.25 5,559.03 12/03/01 62.04 60.84 5,559.08 01/03/02 61.99 60.79 5,559.32 02/06/02 61.75 60.55 5,559.63 03/26/02 61.44 60.24 5,559.55 04/09/02 61.52 60.32 5,560.06 05/23/02 61.01 59.81 5,559.91 06/05/02 61.16 59.96 5,560.09 07/08/02 60.98 59.78 5,560.01 08/23/02 61.06 59.86 5,560.23 09/11/02 60.84 59.64 5,560.43 10/23/02 60.64 59.44 5,560.39 11/22/02 60.68 59.48 5,560.61 12/03/02 60.46 59.26 5,560.89 01/09/03 60.18 58.98 5,560.94 02/12/03 60.13 58.93 5,561.28 03/26/03 59.79 58.59 5,561.35 04/02/03 59.72 58.52 5,546.20 05/01/03 74.87 73.67 5,539.47 06/09/03 81.60 80.40 5,541.87 07/07/03 79.20 78.00 5,542.12 08/04/03 78.95 77.75 5,541.91 09/11/03 79.16 77.96 5,544.62 10/02/03 76.45 75.25 5,542.67 11/07/03 78.40 77.20 5,549.96 12/03/03 71.11 69.91 5,557.17 01/15/04 63.90 62.70 5,558.65 02/10/04 62.42 61.22 5,559.90 03/28/04 61.17 59.97 5,560.36 04/12/04 60.71 59.51 5,560.87 05/13/04 60.20 59.00 5,560.95 06/18/04 60.12 58.92 5,561.64 07/28/04 59.43 58.23 5,543.00 08/30/04 78.07 76.87 Water Levels and Data over Time White Mesa Mill -Well TW4-7 Mea uring Total or Total Water Land Point Length Or Date Of Measured Depth to Total Depth Elevation Surface Ele ation Riser (L) Monitoring Depth to Water Of Well (WL) (LSD) (MP) Water (blw.LSD) (blw.LSD) {blw.MPl 5,619.87 5,621.07 1.20 121.0 5,541.91 09/16/04 79.16 77.96 5,540.08 10/11/04 80.99 79.79 5,546.92 11/16/04 74.15 72.95 5,546.97 12/22/04 74.10 72.90 5,546.51 01/18/05 74.56 73.36 5,546.66 02/28/05 74.41 73.21 5,546.81 03/15/05 74.26 73.06 5,548.19 04/26/05 72.88 71.68 5,547.11 05/24/05 73.96 72.76 5,546.98 06/30/05 74.09 72.89 5,546.92 07/29/05 74.15 72.95 5,547.26 09/12/05 73.81 72.61 5,547.26 12/07/05 73.81 72.61 5,548.86 03/08/06 72.21 71.01 5,548.62 06/13/06 72.45 71.25 5,550.04 07/18/06 71.03 69.83 5,548.32 11/07/06 72.75 71.55 5,550.44 02/27/07 70.63 69.43 5,549.69 05/02/07 71.38 70.18 5,549.97 08/14/07 71.10 69.90 5,550.30 10/10/07 70.77 69.57 5,551.92 03/26/08 69.15 67.95 5,552.94 06/24/08 68.13 66.93 5,552.34 08/26/08 68.73 67.53 5,552.61 10/14/08 68.46 67.26 5,552.81 03/10/09 68.26 67.06 5,553.11 06/24/09 67.96 66.76 5,552.55 09/10/09 68.52 67.32 5,553.06 12/11/09 68.01 66.81 5,554.64 03/11/10 66.43 65.23 5,554.20 05/11/10 66.87 65.67 5,553.45 09/29/10 67.62 66.42 5,553.40 12/21/10 67.67 66.47 5,553.93 02/28/11 67.14 65.94 5,553.67 06/21/11 67.4 66.20 5,553.46 09/20/11 67.61 66.41 5,553.78 12/21/11 67.29 66.09 5,553.17 03/27/12 67.90 66.70 5,553.21 06/28/12 67.86 66.66 5,552.90 09/27/12 68.17 66.97 5,553.15 12/28/12 67.92 66.72 5,556.23 03/28/13 64.84 63.64 5,556.04 06/27/13 65.03 63.83 5,556.09 09/27/13 64.98 63.78 Water Levels and Data over Time White Mesa Mill -Well TW4-7 Measuring Total or Total Water Land Measured Total Depth Elevation Surface Point Length Of Date Of Depth to Depth to Of Well (WL) (LSD) Elevation Riser (L) Monitoring Water Water (blw.LSD) (MP) (blw.MP} (blw.LSD) 5,619.87 5,621.07 1.20 121.0 5,555.80 12/20/13 65.27 64.07 5,555.40 03/27/14 65.67 64.47 5,554.20 06/25/14 66.87 65.67 5,552.96 09/25/14 68.11 66.91 5,552.62 12/17/14 68.45 67.25 5,548.57 03/26/15 72.50 71.30 5,555.88 06/22/15 65.19 63.99 5,546.22 09/30/15 74.85 73.65 5,539.47 12/02/15 81.60 80.40 5,545.08 03/30/16 75.99 74.79 5,544.62 06/30/16 76.45 75.25 5,544.61 09/29/16 76.46 75.26 5,544.09 12/21/16 76.98 75.78 5,546.07 03/30/17 75.00 73.80 5,549.36 06/27/17 71.71 70.51 5,541.91 09/28/17 79.16 77.96 5,540.51 11/30/17 80.56 79.36 5,540.71 03/28/18 80.36 79.16 5,540.12 06/22/18 80.95 79.75 5,540.17 09/25/18 80.90 79.70 5,538.26 12/17/18 82.81 81.61 5,538.81 03/25/19 82.26 81.06 5,539.11 06/24/19 81.96 80.76 5,539.75 08/12/19 81.32 80.12 5,539.13 11/18/19 81.94 80.74 5,538.03 02/10/20 83.04 81.84 5,538.29 05/04/20 82.78 81.58 5,540.28 09/22/20 80.79 79.59 5,539.17 12/30/20 81.90 80.70 5,539.03 03/11 /21 82.04 80.84 5,538.82 06/24/21 82.25 81.05 5,539.00 08/13/21 82.07 80.87 5,539.08 12/30/21 81.99 80.79 5,537.94 02/10/22 83.13 81.93 5,538.86 06/28/22 82.21 81.01 5,538.64 08/15/22 82.43 81.23 5,538.68 11/17/22 82.39 81.19 5,538.18 03/24/23 82.89 81.69 5,538.37 06/26/23 82.70 81.50 5,536.84 09/28/23 84.23 83.03 '° 0 00 Vt 00 0 Depth Below Measuring Point (ft.) --.J Vt --.J 0 °' Vt °' 0 Vt Vt Vt 0 L 11/29/99 -04/27/00 -09/24/00 02/21/01 -07/21/01 12/18/01 05/17/02 10/14/02 03/13/03 08/10/03 01/07/04 06/05/04 11/02/04 04/01/05 08/29/05 01/26/06 06/25/06 ~ 11/22/06 04/21/07 ~ 09/18/07 """ I 02/15/08 ---l 07/14/08 ~ 12/11/08 05/10/09 ...... 10/07/09 ~ ., 03/06/10 ~ 08/03/10 ~ 12/31/10 -= ...... 05/30/11 =-10/27/11 0 03/25/12 < • 08/22/12 ~ 01/19/13 ., ~ 06/18/13 ... 11/15/13 a 04/14/14 ~ 09/11/14 -02/08/15 ~ 07/08/15 C"' ,_ 12/05/15 -a 05/03/16 -= 09/30/16 --02/27/17 07/27/17 12/24/17 05/23/18 10/20/18 03/19/19 08/16/19 01/13/20 06/11/20 11/08/20 04/07/21 09/04/21 02/01/22 07/01/22 11/28/22 04/27/23 • 09/24/23 02/21/24 07/20/24 12/17/24 Water Levels and Data over Time White Mesa Mill -Well TW4-8 Total or Measuring Measured Water Land Point Depth to Total Depth Total Elevation Surface Elevation Length Of Date Of Water to Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (bJw.LSD) WelJ 5,616.80 5,621.40 4.60 126.2 5,546.40 11/29/99 75 .00 70.40 5,546.20 01 /02/00 75 .20 70.60 5,546.50 01 /10/00 74.90 70.30 5,546.30 01/17/00 75.10 70.50 5,546.60 01/24/00 74.80 70.20 5,546.50 02/01/00 74.90 70.30 5,546.50 02/07/00 74.90 70.30 5,546.90 02/14/00 74.50 69.90 5,546.95 02/23/00 74.45 69.85 5,547.05 03/01/00 74.35 69.75 5,547.05 03/08/00 74.35 69.75 5,547.10 03/15/00 74.30 69.70 5,547.50 03/20/00 73.90 69.30 5,547.40 03/29/00 74.00 69.40 5,547.20 04/04/00 74.20 69.60 5,547.40 04/13/00 74.00 69.40 5,547.60 04/21/00 73.80 69.20 5,547.70 04/28/00 73.70 69.10 5,547.70 05/01/00 73.70 69.10 5,548.00 05/11/00 73.40 68.80 5,547.70 05/15/00 73.70 69.10 5,547.90 05/25/00 73.50 68.90 5,547.90 06/09100 73.50 68 .90 5,548.00 06/16/00 73.40 68.80 5,547.87 06/26/00 73.53 68.93 5,547.95 07/06/00 73.45 68.85 5,547.96 07/13/00 73.44 68.84 5,547.95 07/18/00 73.45 68.85 5,548.11 07/27/00 73.29 68.69 5,548.15 08/02/00 73.25 68.65 5,548.17 08/09/00 73.23 68.63 5,548.16 08/15/00 73.24 68 .64 5,548.40 08/31/00 73.00 68.40 5,548.50 09/08/00 72.90 68.30 5,548.62 09/13/00 72.78 68.18 5,548.75 09/20/00 72.65 68.05 5,548.76 10/05/00 72.64 68.04 5,549.00 11/09/00 72.40 67.80 5,548.85 12/06/00 72.55 67.95 5,549.47 01/03/01 71.93 67.33 5,549.89 02/09/01 71.51 66.91 5,550.37 03 /27/01 71.03 66.43 5,550.50 04/30/01 70.90 66.30 Water Levels and Data over Time White Mesa Mill -Well TW4-8 Total or Measuring Measured Water Land Point Depth to Total Depth Total Elevation Surface Elevation Length Of Date Of Water to Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,616.80 5,621.40 4.60 126.2 5,550.68 05/31/01 70.72 66.12 5,550.68 06/20/01 70.72 66.12 5,551.02 07/10/01 70.38 65.78 5,551.32 08/20/01 70.08 65.48 5,551.49 09/19/01 69.91 65.31 5,551.64 10/02/01 69.76 65.16 5,551.81 11/08/01 69.59 64.99 5,552.22 12/03/01 69.18 64.58 5,552.16 01/03/02 69.24 64.64 5,552.38 02/06/02 69.02 64.42 5,552.85 03/26/02 68.55 63.95 5,552.83 04/09/02 68.57 63.97 5,553.20 05/23/02 68.20 63.60 5,553.16 06/05/02 68.24 63.64 5,553.32 07/08/02 68.08 63.48 5,553.49 08/23/02 67.91 63.31 5,553.69 09/11/02 67.71 63.11 5,554.09 10/23/02 67.31 62.71 5,554.02 11/22/02 67.38 62.78 5,554.23 12/03/02 67.17 62.57 5,554.43 01/09/03 66.97 62.37 5,554.42 02/12/03 66.98 62.38 5,554.71 03/26/03 66.69 62.09 5,554.83 04/02/03 66.57 61.97 5,552.21 05/01/03 69.19 64.59 5,547.93 06/09/03 73.47 68.87 5,546.97 07/07/03 74.43 69.83 5,546.58 08/04/03 74.82 70.22 5,546.24 09/11/03 75.16 70.56 5,546.38 10/02/03 75.02 70.42 5,546.40 11/07/03 75.00 70.40 5,546.59 12/03/03 74.81 70.21 5,551.29 01/15/04 70.11 65.51 5,552.69 02/10/04 68.71 64.11 5,554.06 03/28/04 67.34 62.74 5,554.52 04/12/04 66.88 62.28 5,555.06 05/13/04 66.34 61.74 5,555.11 06/18/04 66.29 61.69 5,555.88 07/28/04 65.52 60.92 5,552.97 08/30/04 68.43 63.83 5,550.65 09/16/04 70.75 66.15 5,548.40 10/11/04 73.00 68.40 5,548.28 11/16/04 73.12 68.52 Water Levels and Data over Time White Mesa Mill -Well TW4-8 Total or Measuring Measured Water Land Point Depth to Total Depth Total Elevation Surface Elevation Length Of Date Of Water to Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,616.80 5,621.40 4.60 126.2 5,548.80 12/22/04 72.60 68.00 5,548.43 01/18/05 72.97 68.37 5,548.61 02/28/05 72.79 68.19 5,548.64 03/15/05 72.76 68.16 5,548.65 04/26/05 72.75 68.15 5,548.85 05/24/05 72.55 67.95 5,548.73 06/30/05 72.67 68.07 5,548.62 07/29/05 72.78 68.18 5,548.80 09/12/05 72.60 68.00 5,548.71 12/07/05 72.69 68.09 5,549.72 03/08/06 71.68 67.08 5,549.70 06/13/06 71.70 67.10 5,549.70 07/18/06 71.70 67.10 5,549.65 11/07 /06 71.75 67.15 5,551.11 02/27/07 70.29 65.69 5,550.20 05/02/07 71.20 66.60 5,550.59 08/14/07 70.81 66.21 5,550.76 10/10/07 70.64 66.04 5,551.95 03/26/08 69.45 64.85 5,552.36 06/24/08 69.04 64.44 5,552.50 08/26/08 68.90 64.30 5,552.56 10/14/08 68.84 64.24 5,552.91 03/03/09 68.49 63.89 5,553.27 06/24/09 68.13 63.53 5,553.12 09/10/09 68.28 63.68 5,553.63 12/11/09 67.77 63.17 5,554.65 03/11/10 66.75 62.15 5,554.57 05/11/10 66.83 62.23 5,554.34 09/29/10 67.06 62.46 5,554.09 12/21/10 67.31 62.71 5,554.50 02/28/11 66.9 62.30 5,554.79 06/21/11 66.61 62.01 5,554.63 09/20/11 66.77 62.17 5,555.01 12/21/11 66.39 61.79 5,554.85 03/27/12 66.55 61.95 5,554.90 06/28/12 66.5 61.90 5,554.85 09/27/12 66.55 61.95 5,554.86 12/28/12 66.54 61.94 5,556.48 03/28/13 64.92 60.32 5,556.35 06/27/13 65.05 60.45 5,556.60 09/27/13 64.80 60.20 5,556.56 12/20/13 64.84 60.24 5,556.38 03/27/14 65.02 60.42 Water Levels and Data over Time White Mesa Mill -Well TW4-8 Total or Measuring Measured Water Land Point Depth to Total Depth Total Elevation Surface Elevation Length Of Date Of Water to Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,616.80 5,621.40 4.60 126.2 5,555.56 06/25/14 65.84 61.24 5,554.82 09/25/14 66.58 61.98 5,554.95 12/17/14 66.45 61.85 5,546.89 03/26/15 74.51 69.91 5,547.80 06/22/15 73.60 69.00 5,544.84 09/30/15 76.56 71.96 5,540.22 12/02/15 81.18 76.58 5,542.00 03/30/16 79.40 74.80 5,542.10 06/30/16 79.30 74.70 5,541.70 09/29/16 79.70 75.10 5,539.90 12/21/16 81.50 76.90 5,541.70 03/30/17 79.70 75.10 5,542.19 06/27/17 79.21 74.61 5,540.58 09/28/17 80.82 76.22 5,538.52 11/30/17 82.88 78.28 5,537.95 03/28/18 83.45 78.85 5,537.73 06/22/18 83.67 79.07 5,537.38 09/25/18 84.02 79.42 5,536.86 12/17/18 84.54 79.94 5,536.30 03/25/19 85.10 80.50 5,536.67 06/24/19 84.73 80.13 5,536.82 08/12/19 84.58 79.98 5,536.37 11/18/19 85.03 80.43 5,535.53 02/10/20 85.87 81.27 5,535.25 05/04/20 86.15 81.55 5,535.49 09/22/20 85.91 81.31 5,534.69 12/30/20 86.71 82.11 5,534.92 03/11/21 86.48 81.88 5,534.82 06/24/21 86.58 81.98 5,536.12 08/13/21 85.28 80.68 5,534.94 12/30/21 86.46 81.86 5,535.76 02/10/22 85.64 81.04 5,534.80 06/28/22 86.60 82.00 5,535.98 08/15/22 85.42 80.82 5,535.89 11/17/22 85.51 80.91 5,536.04 03/24/23 85.36 80.76 5,536.13 06/26/23 85.27 80.67 5,536.00 09/28/23 85.40 80.80 Depth Below Measuring Point (ft.) 0 \0 00 -...J 0\ V, _.,. w N -0 0 0 0 0 0 0 0 0 0 0 11/29/99 04/27/00 09/24/00 02/21/01 07/21/01 12/18/01 05/17/02 10/14/02 03/13/03 08/10/03 01/07/04 06/05/04 11/02/04 04/01/05 08/29/05 01/26/06 06/25/06 ""'3 11/22/06 04/21/07 ~ 09/18/07 ,I.. I 02/15/08 00 07/14/08 ~ 12/11/08 05/10/09 ...... 10/07/09 ('ti "'I 03/06/10 t:; 08/03/10 ('ti 12/31/10 -= ...... 05/30/11 =-10/27/11 0 03/25/12 < 08/22/12 ('ti 01/19/13 "'I ""'3 06/18/13 .... 11/15/13 = 04/14/14 ('ti 09/11/14 ,_ 02/08/15 ~ 07/08/15 C"' 12/05/15 -= 05/03/16 -= 09/30/16 -02/27/17 07/27/17 12/24/17 05/23/18 10/20/18 03/19/19 08/16/19 01/13/20 06/11/20 11/08/20 04/07/21 09/04/21 02/01/22 07/01/22 11/28/22 04/27/23 09/24/23 02/21/24 07/20/24 12/17/24 Water Levels and Data over Time White Mesa Mill -Well TW 4-9 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (L D) (MP) Riser (L) Monitoring (blw.MP) (bh .L D) Well 5,636.11 5,637.59 1.48 120.1 5,577.09 12/20/99 60.50 59.02 5,577.09 01/02/00 60.50 59.02 5,577.29 01/10/00 60.30 58.82 5,577.09 01/17/00 60.50 59.02 5,577.39 01/24/00 60.20 58.72 5,577.29 02/01/00 60.30 58.82 5,577.19 02/07/00 60.40 58.92 5,577.69 02/14/00 59.90 58.42 5,577.69 02/23/00 59.90 58.42 5,577.79 03/01/00 59.80 58.32 5,577.79 03/08/00 59.80 58.32 5,577.89 03/15/00 59.70 58.22 5,568.49 03/20/00 69.10 67.62 5,578.14 03/29/00 59.45 57.97 5,577.84 04/04/00 59.75 58.27 5,578.04 04/13/00 59.55 58.07 5,578.24 04/21/00 59.35 57.87 5,578.39 04/28/00 59.20 57.72 5,578.39 05/01/00 59.20 57.72 5,578.79 05111/00 58.80 57.32 5,578.39 05/15/00 59.20 57.72 5,578.79 05/25/00 58.80 57.32 5,578.81 06/09/00 58.78 57.30 5,578.89 06/16/00 58.70 57.22 5,578.74 06/26/00 58.85 57.37 5,578.86 07/06/00 58.73 57.25 5,578.87 07/13/00 58.72 57.24 5,578.84 07/18/00 58.75 57.27 5,579.03 07/27/00 58.56 57.08 5,579.03 08/02/00 58.56 57.08 5,579.05 08/09/00 58.54 57.06 5,579.04 08/15/00 58.55 57.07 5,579.25 08/31/00 58.34 56.86 5,579.35 09/08/00 58.24 56.76 5,579.40 09/13/00 58.19 56.71 5,579.46 09/20/00 58.13 56.65 5,579.44 10/05/00 58.15 56.67 5,579.79 11/09/00 57.80 56.32 5,579.73 12/06/00 57.86 56.38 5,580.01 01/03/01 57.58 56.10 5,580.30 02/09/01 57.29 55.81 5,580.66 03/27/01 56.93 55.45 5,580.75 04/30/01 56.84 55.36 Water Levels and Data over Time White Mesa Mill -Well TW 4-9 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,636.11 5,637.59 1.48 120.1 5,581.04 05/31/01 56.55 55.07 5,581.12 06/21/01 56.47 54.99 5,581.15 07/10/01 56.44 54.96 5,581.51 08/20/01 56.08 54.60 5,581.70 09/19/01 55.89 54.41 5,581.61 10/02/01 55.98 54.50 5,581.83 11/08/01 55.76 54.28 5,582.17 12/03/01 55.42 53.94 5,582.21 01/03/02 55.38 53.90 5,582.57 02/06/02 55.02 53.54 5,583.12 03/26/02 54.47 52.99 5,582.77 04/09/02 54.82 53.34 5,583.21 05/23/02 54.38 52.90 5,582.94 06/05/02 54.65 53.17 5,582.71 07/08/02 54.88 53.40 5,583.67 08/23/02 53.92 52.44 5,583.82 09/11/02 53.77 52.29 5,584.01 10/23/02 53.58 52.10 5,583.88 11/22/02 53.71 52.23 5,583.81 12/03/02 53.78 52.30 5,584.28 01/09/03 53.31 51.83 5,584.41 02/12/03 53.18 51.70 5,584.68 03/26/03 52.91 51.43 5,584.49 04/02/03 53.10 51.62 5,584.51 05/01/03 53.08 51.60 5,583.59 06/09/03 54.00 52.52 5,582.96 07/07/03 54.63 53.15 5,582.98 08/04/03 54.61 53.13 5,582.57 09/11/03 55.02 53.54 5,582.25 10/02/03 55.34 53.86 5,582.09 11/07/03 55.50 54.02 5,582.48 12/03/03 55.11 53.63 5,583.69 01/15/04 53.90 52.42 5,583.89 02/10/04 53.70 52.22 5,584.30 03/28/04 53.29 51.81 5,584.59 04/12/04 53.00 51.52 5,584.87 05/13/04 52.72 51.24 5,584.96 06/18/04 52.63 51.15 5,585.50 07/28/04 52.09 50.61 5,584.81 08/30/04 52.78 51.30 5,584.40 09/16/04 53.19 51.71 5,583.91 10/11/04 53.68 52.20 5,583.39 11/16/04 54.20 52.72 Water Levels and Data over Time White Mesa Mill -Well TW 4-9 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,636.11 5,637.59 1.48 120.1 5,583.54 12/22/04 54.05 52.57 5,583.34 01/18/05 54.25 52.77 5,583.66 02/28/05 53.93 52.45 5,583.87 03/15/05 53.72 52.24 5,584.74 04/26/05 52.85 51.37 5,585.26 05/24/05 52.33 50.85 5,585.06 06/30/05 52.53 51.05 5,584.67 07/29/05 52.92 51.44 5,584.75 09/12/05 52.84 51.36 5,584.51 12/07/05 53.08 51.60 5,585.74 03/08/06 51.85 50.37 5,584.74 06/13/06 52.85 51.37 5,584.26 07/18/06 53.33 51.85 5,584.21 11/07/06 53.38 51.90 5,584.67 02/27/07 52.92 51.44 5,584.06 05/02/07 53.53 52.05 5,585.33 08/14/07 52.26 50.78 5,585.42 10/10/07 52.17 50.69 5,587.01 03/26/08 50.58 49.10 5,585.44 06/24/08 52.15 50.67 5,585.23 08/26/08 52.36 50.88 5,584.42 10/14/08 53.17 51.69 5,583.59 03/03/09 54.00 52.52 5,583.35 06/24/09 54.24 52.76 5,582.91 09/10/09 54.68 53.20 5,583.43 12/11/09 54.16 52.68 5,584.00 03/11/10 53.59 52.11 5,583.27 05/11/10 54.32 52.84 5,582.92 09/29/10 54.67 53.19 5,583.08 12/21/10 54.51 53.03 5,582.63 02/28/11 54.96 53.48 5,583.62 06/21/11 53.97 52.49 5,583.52 09/20/1 l 54.07 52.59 5,583.91 12/21/11 53.68 52.20 5,582.84 03/27/12 54.75 53.27 5,582.84 06/28/12 54.75 53.27 5,582.92 09/27/12 54.67 53.19 5,582.84 12/28/12 54.75 53.27 5,581.97 03/28/13 55.62 54.14 5,581.19 06/27/13 56.40 54.92 5,580.50 09/27/13 57.09 55.61 5,579.73 12/20/13 57.86 56.38 5,578.61 03/27/14 58.98 57.50 Water Levels and Data over Time White Mesa Mill -Well TW 4-9 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,636.11 5,637.59 1.48 120.1 5,577.24 06/25/14 60.35 58.87 5,576.24 09/25/14 61.35 59.87 5,576.44 12/17/14 61.15 59.67 5,576.35 03/26/15 61.24 59.76 5,576.48 06/22/15 61.11 59.63 5,575.98 09/30/15 61.61 60.13 5,575.41 12/02/15 62.18 60.70 5,575.38 03/30/16 62.21 60.73 5,574.74 06/30/16 62.85 61.37 5,574.26 09/29/16 63.33 61.85 5,573.88 12/2 l/16 63.71 62.23 5,573.99 03 /30/17 63.60 62.12 5,573.49 06/27/17 64.10 62.62 5,573.05 09/28/17 64.54 63.06 5,572.34 11/30/17 65.25 63.77 5,574.97 03/28/18 62.62 6l.14 5,571.69 06/22/18 65.90 64.42 5,571.20 09/25/18 66.39 64.91 5,570.92 12/17/18 66.67 65.19 5,570.16 03 /25/19 67.43 65 .95 5,570.17 06/24/19 67.42 65 .94 5,570.01 08/12/19 67.58 66.10 5,569.66 11/18/19 67.93 66.45 5,569.38 02/10/20 68.21 66.73 5,569.04 05/04/20 68.55 67.07 5,568.30 09/22/20 69.29 67.81 5,568.12 12/30/20 69.47 67.99 5,568.18 03/11/21 69.41 67.93 5,567.66 06/24/21 69.93 68.45 5,567.54 08/13/21 70.05 68.57 5,567.77 12/30/21 69.82 68.34 5,567.12 02/10/22 70.47 68 .99 5,567.68 06/28/22 69.91 68.43 5,566.83 08/15/22 70.76 69.28 5,566.66 11/17/22 70.93 69.45 5,566.20 03/24/23 71.39 69.91 5,566.31 06/26/23 71.28 69.8 5,566.22 09/28/23 71.37 69.89 c':c': -0 % I' l'c' -0 % I' 0% % I' 6'1' "O % I' &>;--0 % I' <;--0 %;- -91' "O % I' SI' "O -% C. I' E "';-"O .c % I' . '-"1-~ "O % -I' C11 c':1-E "O %;-i= I';-... -0 C11 %;-> 0 O;-"O .c % I' ..... 6'o C. "o C11 %;-C <Po ... "o C11 %;-..... "' <o ~ "o %,,. en .9o I ,i:::t' "o % ~ I' I-S'% % I' "'o "o % I' "o "o %;- c':o "o % I' l'o "o % I' 0% %1' 6'% %1' 0 0 0 "' Water Levels and Data over Time White Mesa Mill -Well TW 4-10 Total or Measuring Measured Total Water Land Point Length Depth to Depth to Total Elevation Surface Elevation Of Riser Date Of Water Water Depth Of (WL) (LSD) (MP) (L) Monitoring (blw.MP) (blw.LSD) Well 5,631.99 5,634.24 2.25 113.2 5,576.75 01/03/02 57.49 55.24 5,576.92 02/06/02 57.32 55.07 5,577.43 03/26/02 56.81 54.56 5,577.22 04/09/02 57.02 54.77 5,577.80 05/23/02 56.44 54.19 5,577.47 06/05/02 56.77 54.52 5,577.55 07/08/02 56.69 54.44 5,578.10 08/23/02 56.14 53.89 5,578.24 09/11/02 56.00 53.75 5,578.49 10/23/02 55.75 53.50 5,578.43 11/22/02 55.81 53.56 5,578.43 12/03/02 55.81 53.56 5,578.66 01/09/03 55.58 53.33 5,578.66 02/12/03 55.58 53.33 5,578.78 03/26/03 55.46 53.21 5,578.90 04/02/03 55.34 53.09 5,578.83 05/01/03 55.41 53.16 5,578.05 06/09/03 56.19 53.94 5,577.38 07/07/03 56.86 54.61 5,577.15 08/04/03 57.09 54.84 5,576.76 09/11/03 57.48 55.23 5,576.36 10/02/03 57.88 55.63 5,576.05 11/07/03 58.19 55.94 5,576.20 12/03/03 58.04 55.79 5,577.43 01/15/04 56.81 54.56 5,577.81 02/10/04 56.43 54.18 5,578.47 03/28/04 55.77 53.52 5,578.69 04/12/04 55.55 53.30 5,578.93 05/13/04 55.31 53.06 5,578.99 06/18/04 55.25 53.00 5,579.18 07/28/04 55.06 52.81 5,579.06 08/30/04 55.18 52.93 5,578.78 09/16/04 55.46 53.21 5,577.80 10/11/04 56.44 54.19 5,577.13 11/16/04 57.11 54.86 5,576.96 12/22/04 57.28 55.03 5,576.63 01/18/05 57.61 55.36 5,576.82 02/28/05 57.42 55.17 5,576.86 03/15/05 57.38 55.13 5,577.52 04/26/05 56.72 54.47 5,578.01 05/24/05 56.23 53.98 5,578.15 06/30/05 56.09 53.84 5,577.90 07/29/05 56.34 54.09 Water Levels and Data over Time White Mesa Mill -Well TW 4-10 Total or Measuring Measured Total Water Land Point Length Depth to Depth to Total Elevation Surface Elevation Of Riser Date Of Water Water Depth Of (WL) (LSD) (MP) (L) Monitoring (blw.MP) (blw.LSD) Well 5,631.99 5,634.24 2.25 113.2 5,578.02 09/12/05 56.22 53.97 5,577.56 12/07/05 56.68 54.43 5,579.69 03/08/06 54.55 52.30 5,578.34 06/13/06 55.90 53.65 5,577.94 07/18/06 56.30 54.05 5,578.01 11/07 /06 56.23 53.98 5578.43 02/27/07 55.81 53.56 5,577.84 05/02/07 56.40 54.15 5,578.74 08/14/07 55.50 53.25 5,579.04 10/10/07 55.20 52.95 5,580.69 03/26/08 53.55 51.30 5,579.87 06/24/08 54.37 52.12 5,579.47 08/26/08 54.77 52.52 5,578.87 10/14/08 55.37 53.12 5,578.01 03/10/09 56.23 53.98 5,577.85 06/24/09 56.39 54.14 5,577.49 09/10/09 56.75 54.50 5,577.98 12/11/09 56.26 54.01 5,578.38 03/11/10 55.86 53.61 5,578.16 05/11/10 56.08 53.83 5,577.85 09/29/10 56.39 54.14 5,577.28 12/21/10 56.96 54.71 5,577.14 02/28/11 57.10 54.85 5,578.09 06/21/11 56.15 53.90 5,578.24 09/20/11 56.00 53.75 5,578.74 12/21/11 55.50 53.25 5,577.89 03/27/12 56.35 54.10 5,577.90 06/28/12 56.34 54.09 5,578.29 09/27/12 55.95 53.70 5,577.87 12/28/12 56.37 54.12 5,577.92 03/28/13 56.32 54.07 5,577.19 06/27/13 57.05 54.80 5,576.77 09/27/13 57.47 55.22 5,576.22 12/20/13 58.02 55.77 5,575.36 03/27/14 58.88 56.63 5,574.11 06/25/14 60.13 57.88 5,573.19 09/25/14 61.05 58.80 5,573.19 12/17/14 61.05 58.80 5,573.12 03/26/15 61.12 58.87 5,573.33 06/22/15 60.91 58.66 5,572.98 09/30/15 61.26 59.01 5,572.39 12/02/15 61.85 59.60 5,572.64 03/30/16 61.60 59.35 Water Levels and Data over Time White Mesa Mill -Well TW 4-10 Total or Measuring Measured Total Water Land Point Length Depth to Depth to Total Elevation Surface Elevation Of Riser Date Of Water Water Depth Of (WL) (LSD) (MP) (L) Monitoring (blw.MP) (blw.LSD) Well 5,631.99 5,634.24 2.25 113.2 5,571.79 06/30/16 62.45 60.20 5,571.27 09/29/16 62.97 60.72 5,570.94 12/21/16 63.30 61.05 5,571.09 03/30/17 63.15 60.90 5,570.59 06/27/17 63.65 61.40 5,570.12 09/28/17 64.12 61.87 5,569.42 11/30/17 64.82 62.57 5,569.06 03/28/18 65.18 62.93 5,568.81 06/22/18 65.43 63.18 5,568.33 09/25/18 65.91 63.66 5,568.08 12/17/18 66.16 63.91 5,567.33 03/25/19 66.91 64.66 5,567.39 06/24/19 66.85 64.60 5,567.21 08/12/19 67.03 64.78 5,566.88 11/18/19 67.36 65.11 5,566.61 02/10/20 67.63 65.38 5,566.27 05/04/20 67.97 65.72 5,565.53 09/22/20 68.71 66.46 5,565.33 12/30/20 68.91 66.66 5,565.46 03/11/21 68.78 66.53 5,564.86 06/24/21 69.38 67.13 5,564.89 08/13/21 69.35 67.10 5,565.05 12/30/21 69.19 66.94 5,564.41 02/10/22 69.83 67.58 5,564.82 06/28/22 69.42 67.17 5,564.09 08/15/22 70.15 67.90 5,563.87 11/17/22 70.37 68.12 5,563.52 03/24/23 70.72 68.47 5,563.54 06/26/23 70.70 68.45 5,563.51 09/28/23 70.73 68.48 00 0 --.I 0 °' 0 Depth Below Measuring Point (ft.) V, 0 .i:,. 0 (.;.l 0 N 0 ...... 0 0 01/03/02 06/02/02 10/30/02 03/29/03 08/26/03 01/23/04 06/21/04 11/18/04 04/17/05 09/14/05 02/11/06 07/11/06 • 12/08/06 05/07/07 10/04/07 03/02/08 ~ • 07/30/08 ~ 12/27/08 ,I;;,.. 05/26/09 I ~ 10/23/09 = 03/22/10 ~ ,_ 08/19/10 ...... 01/16/11 ('t) 06/15/11 ., ~ 11/12/11 ('t) 04/10/12 "C ...... 09/07/12 =-02/04/13 0 07/04/13 -< 12/01/13 ('t) ., [ 04/30/14 ~ 09/27/14 ... 02/24/15 = ('t) 07/24/15 -12/21/15 ? 05/19/16 C"' 10/16/16 -= 03/15/17 "C 08/12/17 -01/09/18 06/08/18 11/05/18 04/04/19 09/01/19 01/29/20 • 06/27/20 11/24/20 04/23/21 09/20/21 02/17/22 07/17/22 12/14/22 05/13/23 10/10/23 03/08/24 08/05/24 01/02/25 Water Levels and Data over Time White Mesa Mill -Well TW 4-11 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,621.92 5,623.62 1.70 102.4 5,548.32 01/03/02 75.30 73.60 5,548.73 02/06/02 74.89 73.19 5,549.03 03/26/02 74.59 72.89 5,548.84 04/09/02 74.78 73.08 5,549.30 05/23/02 74.32 72.62 5,549.01 06/05/02 74.61 72.91 5,549.22 07/08/02 74.40 72.70 5,549.44 08/23/02 74.18 72.48 5,549.57 09/11/02 74.05 72.35 5,549.64 10/23/02 73.98 72.28 5,549.58 11/22/02 74.04 72.34 5,549.62 12/03/02 74.00 72.30 5,549.85 01/09/03 73.77 72.07 5,549.91 02/12/03 73.71 72.01 5,550.15 03/26/03 73.47 71.77 5,550.01 04/02/03 73.61 71.91 5,550.31 05/01/03 73.31 71.61 5,550.44 06/09/03 73.18 71.48 5,550.33 07/07/03 73.29 71.59 5,550.35 08/04/03 73.27 71.57 5,550.44 09/11/03 73.18 71.48 5,550.47 10/02/03 73.15 71.45 5,550.60 11/07/03 73.02 71.32 5,550.60 12/03/03 73.02 71.32 5,550.94 01/15/04 72.68 70.98 5,551.00 02/10/04 72.62 70.92 5,550.34 03/28/04 73.28 71.58 5,551.54 04/12/04 72.08 70.38 5,551.89 05/13/04 71.73 70.03 5,551.94 06/18/04 71.68 69.98 5,552.49 07/28/04 71.13 69.43 5,552.74 08/30/04 70.88 69.18 5,553.01 09/16/04 70.61 68.91 5,553.11 10/11/04 70.51 68.81 5,553.19 11/16/04 70.43 68.73 5,553.53 12/22/04 70.09 68.39 5,553.31 01/18/05 70.31 68.61 5,553.84 02/28/05 69.78 68.08 5,554.04 03/15/05 69.58 67.88 5,554.23 04/26/05 69.39 67.69 5,553.87 05/24/05 69.75 68.05 5,554.46 06/30/05 69.16 67.46 5,554.57 07/29/05 69.05 67.35 Water Levels and Data over Time White Mesa Mill -Well TW 4-11 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,621.92 5,623.62 1.70 102.4 5,553.86 09/12/05 69.76 68.06 5,555.30 12/07/05 68.32 66.62 5,556.20 03/08/06 67.42 65.72 5,556.48 06/14/06 67.14 65.44 5,556.37 07/18/06 67.25 65.55 5,556.94 11/07/06 66.68 64.98 5557.92 02/27/07 65.70 64.00 5,557.84 05/02/07 65.78 64.08 5,558.02 08/15/07 65.60 63.90 5,557.13 10/10/07 66.49 64.79 5,569.74 03/26/08 53.88 52.18 5,561.01 06/24/08 62.61 60.91 5,562.07 08/26/08 61.55 59.85 5,562.47 10/14/08 61.15 59.45 5,563.80 03/10/09 59.82 58.12 5,564.27 06/24/09 59.35 57.65 5,564.32 09/10/09 59.30 57.60 5,564.70 12/11/09 58.92 57.22 5,565.14 03/11/10 58.48 56.78 5,565.61 05/11/10 58.01 56.31 5,565.67 09/29/10 57.95 56.25 5,565.62 12/21/10 58.00 56.30 5,565.42 02/28/11 58.20 56.50 5,566.01 06/21/11 57.61 55.91 5,566.03 09/20/11 57.59 55.89 5,566.63 12/21/11 56.99 55.29 5,565.81 03/27/12 57.81 56.11 5,565.82 06/28/12 57.80 56.10 5,566.66 09/27/12 56.96 55.26 5,565.77 12/28/12 57.85 56.15 5,566.89 03/28/13 56.73 55.03 5,566.32 06/27/13 57.30 55.60 5,565.92 09/27/13 57.70 56.00 5,565.63 12/20/13 57.99 56.29 5,565.03 03/27/14 58.59 56.89 5,564.18 06/25/14 59.44 57.74 5,563.52 09/25/14 60.10 58.40 5,563.37 12/17/14 60.25 58.55 5,532.62 03/26/15 91.00 89.30 5,527.07 06/22/15 96.55 94.85 5,533.27 09/30/15 90.35 88.65 5,532.67 12/02/15 90.95 89.25 5,531.44 03/30/16 92.18 90.48 Water Levels and Data over Time White Mesa Mill -Well TW 4-11 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,621.92 5,623.62 1.70 102.4 5,529.85 06/30/16 93.77 92.07 5,530.64 09/29/16 92.98 91.28 5,530.61 12/21/16 93.01 91.31 5,538.48 03/30/17 85.14 83.44 5,529.93 06/27/17 93.69 91.99 5,530.41 09/28/17 93.21 91.51 5,531.26 11/30/17 92.36 90.66 5,530.28 03/28/18 93.34 91.64 5,530.36 06/22/18 93.26 91.56 5,530.41 09/24/18 93.21 91.51 5,531.96 12/17/18 91.66 89.96 5,532.84 03/25/19 90.78 89.08 5,533.62 06/24/19 90.00 88.30 5,532.49 08/12/19 91.13 89.43 5,532.50 11/18/19 91.12 89.42 5,533.60 02/10/20 90.02 88.32 5,533.02 05/04/20 90.60 88.90 5,530.54 09/21/20 93.08 91.38 5,533.51 12/28/20 90.11 88.41 5,533.54 03/11/21 90.08 88.38 5,534.12 06/24/21 89.50 87.80 5,533.72 08/13/21 89.90 88.20 5,533.62 12/30/21 90.00 88.30 5,533.51 02/10/22 90.11 88.41 5,534.08 06/28/22 89.54 87.84 5,533.84 08/15/22 89.78 88.08 5,533.21 11/17/22 90.41 88.71 5,524.87 03/24/23 98.75 97.05 5,533.87 06/26/23 89.75 88.05 5,534.86 09/25/23 88.76 87.06 --....... 0 --0 0 Depth Below Measuring Point (ft.) \0 0 00 0 -..J 0 0\ 0 Vl 0 1--------+-----+----------+--------+ 01/03/02 06/02/02 -10/30/02 03/29/03 08/26/03 -01/23/04 -06/21/04 -11/18/04 04/17/05 -09/14/05 02/11/06 07/11/06 -12/08/06 -05/07/07 -10/04/07 -03/02/08 -07/30/08 -12/27/08 -05/26/09 10/23/09 03/22/10 08/19/10 01/16/11 06/15/11 11/12/11 -04/10/12 09/07/12 02/04/13 07/04/13 12/01/13 04/30/14 09/27/14 02/24/15 07/24/15 12/21/15 05/19/16 10/16/16 03/15/17 08/12/17 01/09/18 06/08/18 11/05/18 • 04/04/19 09/01/19 01/29/20 06/27/20 11/24/20 04/23/21 09/20/21 02/17/22 07/17/22 12/14/22 -05/13/23 10/10/23 03/08/24 08/05/24 ~--~---~-------~---~--~ 01/02/25 ~ ~ ,&;;;.. I ~ ~ ~ ;- ""i ~ ~ "C st 0 < ~ ""i ~ -· = ~ -? C"' -= "C -- Water Levels and Data over Time White Mesa Mill -Well TW 4-12 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,622.38 5,624.23 1.85 103.2 5,580.91 08/23/02 43.32 41.47 5,581.54 09/11/02 42.69 40.84 5,581.33 10/23/02 42.90 41.05 5,581.47 11/22/02 42.76 40.91 5,581.55 12/03/02 42.68 40.83 5,582.58 01/09/03 41.65 39.80 5,582.47 02/12/03 41.76 39.91 5,582.71 03/26/03 41.52 39.67 5,582.11 04/02/03 42.12 40.27 5,582.92 05/01/03 41.31 39.46 5,583.13 06/09/03 41.10 39.25 5,583.21 07/07/03 41.02 39.17 5,583.31 08/04/03 40.92 39.07 5,583.55 09/11/03 40.68 38.83 5,583.72 10/02/03 40.51 38.66 5,583.77 11/07/03 40.46 38.61 5,584.01 12/03/03 40.22 38.37 5,584.37 01/15/04 39.86 38.01 5,584.39 02/10/04 39.84 37.99 5,584.51 03/28/04 39.72 37.87 5,584.90 04/12/04 39.33 37.48 5,584.88 05/13/04 39.35 37.50 5,584.93 06/18/04 39.30 37.45 5,585.36 07/28/04 38.87 37.02 5,585.38 08/30/04 38.85 37.00 5,585.49 09/16/04 38.74 36.89 5,585.85 10/11/04 38.38 36.53 5,585.91 11/16/04 38.32 36.47 5,586.35 12/22/04 37.88 36.03 5,586.14 01/18/05 38.09 36.24 5,586.56 02/28/05 37.67 35.82 5,586.95 03/15/05 37.28 35.43 5,587.20 04/26/05 37.03 35.18 5,587.35 05/24/05 36.88 35.03 5,587.58 06/30/05 36.65 34.80 5,587.58 07/29/05 36.65 34.80 5,587.94 09/12/05 36.29 34.44 5,588.43 12/07/05 35.80 33.95 5,588.92 03/08/06 35.31 33.46 5,588.34 06/13/06 35.89 34.04 5,588.33 07/18/06 35.90 34.05 5,584.70 11/07/06 39.53 37.68 5588.85 02/27/07 35.38 33.53 Water Levels and Data over Time White Mesa Mill -Well TW 4-12 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,622.38 5,624.23 1.85 103.2 5,588.53 05/02/07 35.70 33.85 5,586.49 08/14/07 37.74 35.89 5,586.68 10/10/07 37.55 35.70 5,587.76 03/26/08 36.47 34.62 5,587.59 06/24/08 36.64 34.79 5,587.35 08/26/08 36.88 35.03 5,586.84 10/14/08 37.39 35.54 5,586.17 03/03/09 38.06 36.21 5,585.74 06/24/09 38.49 36.64 5,585.54 09/10/09 38.69 36.84 5,585.77 12/11/09 38.46 36.61 5,585.88 03/11/10 38.35 36.50 5,586.35 05/11/10 37.88 36.03 5,585.68 09/29/10 38.55 36.70 5,585.09 12/21/10 39.14 37.29 5,584.65 02/28/11 39.58 37.73 5,584.76 06/21/11 39.47 37.62 5,584.32 09/20/11 39.91 38.06 5,584.22 12/21/11 40.01 38.16 5,577.07 03/27/12 47.16 45.31 5,577.05 06/28/12 47.18 45.33 5,583.14 09/27/12 41.09 39.24 5,577.10 12/28/12 47.13 45.28 5,582.71 03/28/13 41.52 39.67 5,582.25 06/27/13 41.98 40.13 5,582.24 09/27/13 41.99 40.14 5,582.12 12/20/13 42.11 40.26 5,581.67 03/27/14 42.56 40.71 5,581.03 06/25/14 43.20 41.35 5,580.49 09/25/14 43.74 41.89 5,580.33 12/17/14 43.90 42.05 5,579.28 03/26/15 44.95 43.10 5,579.23 06/22/15 45.00 43.15 5,578.87 09/30/15 45.36 43.51 5,578.53 12/02/15 45.70 43.85 5,578.53 03/30/16 45.70 43.85 5,578.03 06/30/16 46.20 44.35 5,577.54 09/29/16 46.69 44.84 5,577.27 12/21/16 46.96 45.11 5,577.00 03/30/17 47.23 45.38 5,576.59 06/27/17 47.64 45.79 5,576.00 09/28/17 48.23 46.38 5,575.27 11/29/17 48.96 47. l l Water Levels and Data over Time White Mesa Mill -Well TW 4-12 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,622.38 5,624.23 1.85 103.2 5,573.64 03/28/18 50.59 48.74 5,572.58 06/22/18 51.65 49.80 5,571.91 09/25/18 52.32 50.47 5,571.49 12/17/18 52.74 50.89 5,570.77 03/25/19 53.46 51.61 5,570.78 06/24/19 53.45 51.60 5,570.54 08/12/19 53.69 51.84 5,570.06 11/18/19 54.17 52.32 5,570.02 02/10/20 54.21 52.36 5,569.45 05/04/20 54.78 52.93 5,569.03 09/22/20 55.20 53.35 5,568.91 12/30/20 55.32 53.47 5,568.99 03/11/21 55.24 53.39 5,568.44 06/24/21 55.79 53.94 5,568.35 08/13/21 55.88 54.03 5,568.70 12/30/21 55.53 53.68 5,567.90 02/10/22 56.33 54.48 5,568.45 06/28/22 55.78 53.93 5,567.92 08/15/22 56.31 54.46 5,567.68 11/17/22 56.55 54.70 5,567.92 03/24/23 56.31 54.46 5,567.53 06/26/23 56.70 54.85 5,567.19 09/28/23 57.04 55.19 Vt '-0 Vt .j:,. Depth Below Measuring Point (ft.) .j:,. '-0 .j:,. .j:,. w '-0 w .j:,. l-------+------+-----------i----+,-----+------+08/23/02 01/20/03 06/19/03 11/16/03 04/14/04 09/11/04 02/08/05 07/08/05 12/05/05 05/04/06 10/01/06 02/28/07 07/28/07 12/25/07 05/23/08 10/20/08 03/19/09 08/16/09 01/13/10 06/12/10 11/09/10 04/08/11 09/05/11 02/02/12 -07/01/12 11/28/12 04/27/13 09/24/13 02/21/14 -07/21/14 12/18/14 05/17/15 10/14/15 -03/12/16 -08/09/16 -01/06/17 -06/05/17 11/02/17 -04/01/18 08/29/18 01/26/19 06/25/19 11/22/19 04/20/20 09/17/20 02/14/21 07/14/21 -12/11/21 -05/10/22 -10/07/22 • 03/06/23 08/03/23 -12/31/23 05/29/24 L----------'------'----------'-------'------'---10/26/24 ~ ~ ~ I """" N ~ ;- '"'I ~ ~ "C -=-~ ~ '"'I ~ -· a ~ --~ C"' -a "C ._, Water Levels and Data over Time White Mesa Mill -Well TW 4-13 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,618 .09 5,619.94 1.85 105.7 5,529.66 08/23/02 90.28 88.43 5,530.66 09/11/02 89.28 87.43 5,529.10 10/23/02 90.84 88.99 5,530.58 I 1/22/02 89.36 87.51 5,530.61 12/03/02 89.33 87.48 5,529.74 01/09/03 90.20 88 .35 5,531.03 02/12/03 88.91 87.06 5,531.82 03/26/03 88.12 86.27 5,524.63 04/02/03 95.31 93.46 5,531 .54 05/01/03 88.40 86.55 5,538.46 06/09/03 81.48 79.63 5,539.38 07/07/03 80.56 78.71 5,540.72 08/04/03 79.22 77.37 5,541.25 09/11/03 78.69 76.84 5,541.34 10/02/03 78.60 76.75 5,541.69 I 1/07/03 78.25 76.40 5,541.91 12/03/03 78.03 76.18 5,542.44 01/15/04 77.50 75 .65 5,542.47 02/10/04 77.47 75.62 5,542.84 03/28/04 77.10 75.25 5,543.08 04/12/04 76.86 75.01 5,543.34 05/1 3/04 76.60 74.75 5,543.40 06/18/04 76.54 74.69 5,544.06 07/28/04 75.88 74.03 5,544.61 08/30/04 75.33 73.48 5,545.23 09/16/04 74.71 72.86 5,546.20 10/11/04 73.74 71.89 5,547.43 11/16/04 72.51 70.66 5,548.96 12/22/04 70.98 69.13 5,549.02 01/1 8/05 70.92 69.07 5,550.66 02/28/05 69.28 67.43 5,551.26 03/15/05 68.68 66.83 5,552.23 04/26/05 67.71 65.86 5,552.87 05/24/05 67.07 65.22 5,553.42 06/30/05 66.52 64.67 5,554.00 07/29/05 65.94 64.09 5,555.21 09/12/05 64.73 62.88 5,558.13 12/07/05 61.81 59.96 5,562.93 03/08/06 57.01 55.16 5,564.39 06/13/06 55.55 53.70 5,562.09 07/18/06 57.85 56.00 5,565.49 11/07/06 54.45 52.60 5,571.08 02/27/07 48.86 47.01 Water Levels and Data over Time White Mesa Mill -Well TW 4-13 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,618.09 5,619.94 1.85 105.7 5,570.63 05/02/07 49.31 47.46 5,565.24 08/14/07 54.70 52.85 5,565.83 10/10/07 54.11 52.26 5,569.29 03/26/08 50.65 48.80 5,570.00 06/24/08 49.94 48.09 5,570.41 08/26/08 49.53 47.68 5,570.64 10/14/08 49.30 47.45 5,570.43 03/03/09 49.51 47.66 5,570.56 06/24/09 49.38 47.53 5,570.42 09/10/09 49.52 47.67 5,571.15 12/11/09 48.79 46.94 5,572.01 03/11/10 47.93 46.08 5,572.88 05/11/10 47.06 45.21 5,573.17 09/29/10 46.77 44.92 5,573.14 12/21/10 46.80 44.95 5,573.10 02/28/11 46.84 44.99 5,573.75 06/21/11 46.19 44.34 5,573.63 09/20/11 46.31 44.46 5,573.94 12/21/11 46.00 44.15 5,572.79 03/27/12 47.15 45.30 5,572.77 06/28/12 47.17 45.32 5,573.04 09/27/12 46.90 45 .05 5,572.79 12/28/12 47.15 45 .30 5,573.03 03/28/13 46.91 45.06 5,572.44 06/27/13 47.50 45.65 5,573.46 09/27/13 46.48 44.63 5,573.46 12/20/13 46.48 44.63 5,572.90 03/27/14 47.04 45.19 5,571.79 06/25/14 48.15 46.30 5,571.04 09/25/14 48.90 47.05 5,571.08 12/17/14 48.86 47.01 5,569.50 03/26/15 50.44 48.59 5,569.16 06/22/15 50.78 48.93 5,568.66 09/30/15 51.28 49.43 5,568.02 12/02/15 51.92 50.07 5,568.39 03/30/16 51.55 49.70 5,567.49 06/30/16 52.45 50.60 5,566.99 09/29/16 52.95 51.10 5,566.94 12/21/16 53.00 51.15 5,567.24 03/30/17 52.70 50.85 5,566.79 06/27/17 53 .15 51.30 5,566.43 09/28/17 53.51 51.66 5,566.28 11/29/17 53.66 51.81 Water Levels and Data over Time White Mesa Mill -Well TW 4-13 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,618.09 5,619.94 1.85 105.7 5,566.24 03/28/18 53.70 51.85 5,566.03 06/22/18 53.91 52.06 5,565.61 09/25/18 54.33 52.48 5,565.32 12/17/18 54.62 52.77 5,564.78 03/25/19 55.16 53.31 5,564.99 06/24/19 54.95 53.10 5,564.78 08/12/19 55.16 53.31 5,564.39 11/18/19 55.55 53.70 5,564.39 02/10/20 55.55 53.70 5,563.82 05/04/20 56.12 54.27 5,563.55 09/22/20 56.39 54.54 5,563.51 12/30/20 56.43 54.58 5,563.66 03/11/21 56.28 54.43 5,563.14 06/24/21 56.80 54.95 5,562.99 08/13/21 56.95 55.10 5,563.28 12/30/21 56.66 54.81 5,562.69 02/10/22 57.25 55.40 5,563.11 06/28/22 56.83 54.98 5,562.34 08/15/22 57.60 55.75 5,562.12 11/17/22 57.82 55.97 5,562.62 03/24/23 57.32 55.47 5,562.24 06/26/23 57.70 55.85 5,561.95 09/28/23 57.99 56.14 0 0 \0 0 Depth Below Measuring Point (ft.) 00 0 --.J 0 °' 0 Vl 0 ~ 0 t--------:111,------;----------t-----+------t--------t-08/23/02 01/20/03 06/19/03 11/16/03 04/14/04 09/11/04 02/08/05 07/08/05 12/05/05 05/04/06 10/01/06 02/28/07 07/28/07 12/25/07 05/23/08 10/20/08 03/19/09 -08/16/09 01/13/10 06/12/10 11/09/10 04/08/11 09/05/11 -02/02/12 07/01/12 11/28/12 04/27/13 09/24/13 02/21/14 07/21/14 12/18/14 05/17/15 10/14/15 03/12/16 08/09/16 01/06/17 06/05/17 11/02/17 04/01/18 08/29/18 01/26/19 06/25/19 11/22/19 04/20/20 09/17/20 02/14/21 -07/14/21 12/11/21 -05/10/22 -10/07/22 • 03/06/23 08/03/23 12/31/23 05/29/24 '------'----~---~----'-------~ 10/26/24 ""'3 ~ .,.. I ~ f,H ~ -~ "1 t::, ~ "'C -=-0 -< ~ "1 ""'3 .... a ~ -? C"' -a "'C - Water Levels and Data over Time White Mesa Mill -Well TW 4-14 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,610.92 5,612.77 1.85 95.1 5,518.90 08/23/02 93 .87 92.02 5,519.28 09/11 /02 93.49 91.64 5,519.95 10/23/02 92.82 90.97 5,520.32 11/22/02 92.45 90.60 5,520.42 12/03/02 92.35 90.50 5,520.70 01/09/03 92.07 90.22 5,520.89 02/12/03 91.88 90.03 5,521.12 03/26/03 91.65 89.80 5,521.12 04/02/03 91.65 89.80 5,521.24 05/01 /03 91.53 89.68 5,521 .34 06/09/03 91.43 89.58 5,521.36 07/07/03 91.41 89.56 5,521.35 08/04/03 91.42 89.57 5,521.30 09/11/03 91.47 89.62 5,521.35 10/02/03 91.42 89.57 5,521.36 11/07/03 91.41 89.56 5,521.16 12/03/03 91.61 89.76 5,521.29 01 /15/04 91.48 89.63 5,521.36 02/10/04 91.41 89.56 5,521.46 03/28/04 91.31 89.46 5,521.54 04/12/04 91.23 89.38 5,521.59 05/13/04 91.18 89.33 5,521.69 06/18/04 91.08 89.23 5,521.71 07/28/04 91.06 89.21 5,521.76 08/30/04 91.01 89.16 5,521.77 09/16/04 91.00 89.15 5,521.79 10/11/04 90.98 89.13 5,521.80 11/16/04 90.97 89.12 5,521.82 12/22/04 90.95 89.10 5,521.82 01 /18/05 90.95 89.10 5,521.86 02/28/05 90.91 89.06 5,521.85 03/15/05 90.92 89.07 5,521.91 04/26/05 90.86 89.01 5,521.93 05/24/05 90.84 88.99 5,521.94 06/30/05 90.83 88.98 5,521.84 07/29/05 90.93 89.08 5,521.99 09/12/05 90.78 88.93 5,522.04 12/07/05 90.73 88.88 5,522.05 03 /08/06 90.72 88.87 5,522.27 06/13/06 90.50 88.65 5,521.92 07/18/06 90.85 89.00 5,520.17 11/07/06 92.60 90.75 5,522.24 02/27/07 90.53 88 .68 Water Levels and Data over Time White Mesa Mill-Well TW4-14 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,610.92 5,612.77 1.85 95.1 5,522.47 05/02/07 90.30 88.45 5,520.74 08/14/07 92.03 90.18 5,518.13 10/10/07 94.64 92.79 5,522.85 03/26/08 89.92 88.07 5,522.91 06/24/08 89.86 88.01 5,523.01 08/26/08 89.76 87.91 5,522.96 10/14/08 89.81 87.96 5,523.20 03/03/09 89.57 87.72 5,523.33 06/24/09 89.44 87.59 5,523.47 09/10/09 89.30 87.45 5,523.54 12/11/09 89.23 87.38 5,522.98 03/11/10 89.79 87.94 5,524.01 05/11/10 88.76 86.91 5,524.37 09/29/10 88.40 86.55 5,524.62 12/21/10 88.15 86.30 5,524.78 02/28/11 87.99 86.14 5,525.23 06/21/11 87.54 85.69 5,525.45 09/20/11 87.32 85.47 5,525.72 12/21/11 87.05 85.20 5,525.88 03/27/12 86.89 85.04 5,525.97 06/28/12 86.80 84.95 5,526.32 09/27/12 86.45 84.60 5,525.88 12/28/12 86.89 85.04 5,526.91 03/28/13 85.86 84.01 5,526.99 06/27/13 85.78 83.93 5,527.68 09/27/13 85.09 83.24 5,528.19 12/20/13 84.58 82.73 5,528.75 03/27/14 84.02 82.17 5,529.21 06/25/14 83.56 81.71 5,529.78 09/25/14 82.99 81.14 5,530.41 12/17/14 82.36 80.51 5,530.86 03/26/15 81.91 80.06 5,531.40 06/22/15 81.37 79.52 5,532.15 09/30/15 80.62 78.77 5,532.12 12/02/15 80.65 78.80 5,533.12 03/30/16 79.65 77.80 5,533.13 06/30/16 79.64 77.79 5,533.24 09/29/16 79.53 77.68 5,533.42 12/21/16 79.35 77.50 5,533.97 03/30/17 78.80 76.95 5,534.05 06/27/17 78.72 76.87 5,534.07 09/28/17 78.70 76.85 5,534.29 11/29/17 78.48 76.63 Water Levels and Data over Time White Mesa Mill -Well TW 4-14 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,610.92 5,612.77 1.85 95.1 5,534.56 03/28/18 78.21 76.36 5,534.67 06/22/18 78.10 76.25 5,534.75 09/25/18 78.02 76.17 5,534.71 12/17/18 78.06 76.21 5,534.71 03/25/19 78.06 76.21 5,535.04 06/24/19 77.73 75.88 5,535.17 08/12/19 77.60 75.75 5,535.09 11/18/19 77.68 75.83 5,535.31 02/10/20 77.46 75.61 5,535.12 05/04/20 77.65 75.80 5,535.25 09/22/20 77.52 75.67 5,535.54 12/30/20 77.23 75.38 5,535.55 03/11/21 77.22 75.37 5,535.41 06/24/21 77.36 75.51 5,535.25 08/13/21 77.52 75.67 5,535.65 12/30/21 77.12 75.27 5,535.43 02/10/22 77.34 75.49 5,535.40 06/28/22 77.37 75.52 5,535.37 08/15/22 77.40 75.55 5,535.26 11/17/22 77.51 75.66 5,535.62 03/24/23 77.15 75.3 5,535.43 06/26/23 77.34 75.49 5,535.41 09/28/23 77.36 75.51 0 0 . 1 \0 0 ◄ ◄ ~ ► ► ◄ ~ ◄ ► ◄► ► ◄ 00 0 ◄► '► ► I◄► ► ◄► ► ◄ ◄ ◄ ► ◄ ► ◄ ► ◄ ,t ► ◄ ► ► ◄ ► Depth Below Measuring Point (ft.) --...) 0 0\ 0 U\ 0 .i,.. 0 w 0 N 0 I 0 0 ' - . - 08/23/02 01/20/03 06/19/03 11/16/03 04/14/04 09/11/04 02/08/05 07/08/05 12/05/05 05/04/06 10/01/06 02/28/07 07/28/07 12/25/07 05/23/08 ~ 10/20/08 ~ 03/19/09 ,1::,,. 08/16/09 I i,...i. 01/13/10 ,1::,,. 06/12/10 ~ 11/09/10 04/08/11 ...... ~ 09/05/11 ., 02/02/12 ~ ~ 07/01/12 "Cl 11/28/12 ...... =-04/27/13 0 09/24/13 < 02/21/14 ~ ., 07/21/14 ~ 12/18/14 -· a 05/17/15 ~ 10/14/15 -03/12/16 ~ 08/09/16 a -01/06/17 a 06/05/17 "Cl 11/02/17 --04/01/18 08/29/18 01/26/19 06/25/19 11/22/19 04/20/20 09/17/20 02/14/21 07/14/21 12/11/21 05/10/22 10/07/22 03/06/23 08/03/23 12/31/23 05/29/24 10/26/24 Water Levels and Data over Time White Mesa Mill-Well MW-26 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,624.15 5,625.45 1.30 121.33 5 574.75 08/23/02 50.70 49.40 5,574.97 09/11/02 50.48 49.18 5,575.IO 10/23/02 50.35 49.05 5,574.99 11/22/02 50.46 49.16 5,575.28 12/03/02 50.17 48.87 5,575.41 01/09/03 50.04 48.74 5,575.43 02/12/03 50.02 48.72 5,575.63 03/26/03 49.82 48.52 5,575.91 04/02/03 49.54 48.24 5,575.81 05/01/03 49.64 48.34 5,572.36 06/09/03 53.09 51.79 5,570.70 07/07/03 54.75 53.45 5,570.29 08/04/03 55.16 53.86 5,560.94 09/11/03 64.51 63.21 5,560.63 10/02/03 64.82 63.52 5,560.56 11/07/03 64.89 63.59 5,564.77 12/03/03 60.68 59.38 5,570.89 01/15/04 54.56 53.26 5,572.55 02/10/04 52.90 51.60 5,574.25 03/28/04 51.20 49.90 5,574.77 04/12/04 50.68 49.38 5,575.53 05/13/04 49.92 48.62 5,575.59 06/18/04 49.86 48.56 5,576.82 07/28/04 48.63 47.33 5,527.47 09/16/04 97.98 96.68 5,553.97 11/16/04 71.48 70.18 5,562.33 12/22/04 63.12 61.82 5,550.00 01/18/05 75.45 74.15 5,560.02 04/26/05 65.43 64.13 5,546.11 05/24/05 79.34 78.04 5,556.71 06/30/05 68.74 67.44 5,554.95 07/29/05 70.50 69.20 5,555.48 09/12/05 69.97 68.67 5,551.09 12/07/05 74.36 73.06 5,552.85 03/08/06 72.60 71.30 5,554.30 06/13/06 71.15 69.85 5,554.87 07/18/06 70.58 69.28 5,550.88 11/07/06 74.57 73.27 5,558.77 02/27/07 66.68 65.38 5,548.54 05/02/07 76.91 75.61 5,551.33 10/10/07 74.12 72.82 5,545.56 03/26/08 79.89 78.59 5,545.56 06/25/08 79.89 78.59 Water Levels and Data over Time White Mesa Mill -Well MW-26 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,624.15 5,625.45 1.30 121.33 5,545.82 08/26/08 79.63 78.33 5,545.64 10/14/08 79.81 78.51 5,544.45 03/03/09 81.00 79.70 5,545.32 06/24/09 80.13 78.83 5,544.61 09/10/09 80.84 79.54 5,549.33 12/11/09 76.12 74.82 5,543.78 03/11/10 81.67 80.37 5,545.61 05/11/10 79.84 78.54 5,547.43 09/29/10 78.02 76.72 5,544.14 12/21/10 81.31 80.01 5,546.77 02/28/11 78.68 77.38 5,537.60 06/21/11 87.85 86.55 5,551.46 09/20/11 73.99 72.69 5,549.12 12/21/11 76.33 75.03 5,557.30 03/27/12 68.15 66.85 5,557.38 06/28/12 68.07 66.77 5,550.86 09/27/12 74.59 73.29 5,557.30 12/28/12 68.15 66.85 5,565.37 03/28/13 60.08 58.78 5,563.55 06/27/13 61.90 60.60 5,560.12 09/27/13 65.33 64.03 5,559.27 12/20/13 66.18 64.88 5,556.65 03/27/14 68.80 67.50 5,552.23 06/25/14 73.22 71.92 5,554.05 09/25/14 71.40 70.10 5,550.65 12/17/14 74.80 73.50 5,557.55 03/26/15 67.90 66.60 5,558.51 06/22/15 66.94 65.64 5,560.81 09/30/15 64.64 63.34 5,560.25 12/02/15 65.20 63.90 5,561.07 03/30/16 64.38 63.08 5,560.51 06/30/16 64.94 63.64 5,557.99 09/29/16 67.46 66.16 5,561.26 12/21 /16 64.19 62.89 5,559.85 03/30/17 65.60 64.30 5,559.35 06/27/17 66.10 64.80 5,553.30 09/28/17 72.15 70.85 5,557.38 11/30/17 68.07 66.77 5,543.85 03/28/18 81.60 80.30 5,553.27 06/22/18 72.18 70.88 5,547.57 09/24/18 77.88 76.58 5,547.63 12/20/18 77.82 76.52 5,545.54 03/25/19 79.91 78.61 Water Levels and Data over Time White Mesa Mill -Well MW-26 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,624.15 5,625.45 1.30 121.33 5,547.27 06/24/19 78.18 76.88 5,549.07 08/12/19 76.38 75 .08 5,549.15 11/18/19 76.30 75.00 5,552.38 02/13/20 73.07 71.77 5,539.82 05/04/20 85.63 84.33 5,545.34 09/21/20 80.11 78.81 5,551.33 12/28/20 74.12 72 .82 5,551.37 03/11/21 74.08 72.78 5,539.74 06/24/21 85.71 84.41 5,550.05 08/11/21 75.40 74.10 5,539.30 12/30/21 86.15 84.85 5,549.04 02/10/22 76.41 75.11 5,542.23 06/28/22 83.22 81.92 5,551.32 08/15/22 74.13 72.83 5,541.16 11/17/22 84.29 82.99 5,541.12 03/24/23 84.33 83.03 5,536.93 06/27/23 88.52 87.22 5,551.32 09/25/23 74.13 72 .83 -0 0 '° 0 Depth Below Measuring Point (ft.) 00 0 -..J 0 °' 0 Vl 0 .j::. 0 1---------------1-------4--------1-----4-------<----08/23/02 01/20/03 06/19/03 11/16/03 04/14/04 09/11/04 02/08/05 07/08/05 12/05/05 05/04/06 10/01/06 02/28/07 07/28/07 12/25/07 05/23/08 10/20/08 03/19/09 08/16/09 01/13/10 06/12/10 11/09/10 04/08/11 09/05/11 02/02/12 07/01/12 11/28/12 04/27/13 09/24/13 02/21/14 07/21/14 12/18/14 05/17/15 10/14/15 03/12/16 08/09/16 01/06/17 06/05/17 11/02/17 04/01/18 08/29/18 01/26/19 06/25/19 -11/22/19 04/20/20 -09/17/20 -02/14/21 -07/14/21 -12/11/21 05/10/22 10/07/22 -03/06/23 08/03/23 -12/31/23 05/29/24 .__ __ _, ___ _____._ ___ ___._ ___ __._ ___ _.__ __ ~ 10/26/24 s= ~ N 0'I ~ ;-., ~ ~ "'C ...... =-0 -< ~ ., ~ ... 9 ~ -~ O"' -9 "'C - Water Levels and Data over Time White Mesa Mill-Well TW4-16 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,625.28 5,628.65 3.37 147.6 5,562.91 08/23/02 61.11 57.74 5,563.45 09/11/02 60.57 57.20 5,563.75 10/23/02 60.27 56.90 5,563.68 11/22/02 60.34 56.97 5,563.68 12/03/02 60.34 56.97 5,564.16 01/09/03 59.86 56.49 5,564.25 02/12/03 59.77 56.40 5,564.53 03/26/03 59.49 56.12 5,564.46 04/02/03 59.56 56.19 5,564.79 05/01/03 59.23 55.86 5,564.3 I 06/09/03 59.71 56.34 5,563.29 07/07/03 60.73 57.36 5,562.76 08/04/03 61.26 57.89 5,561.73 09/11/03 62.29 58.92 5,561.04 10/02/03 62.98 59.61 5,560.39 11/07/03 63.63 60.26 5,559.79 12/03/03 64.23 60.86 5,561.02 01/15/04 63.00 59.63 5,561.75 02/10/04 62.27 58.90 5,562.98 03/28/04 61.04 57.67 5,563.29 04/12/04 60.73 57.36 5,564.03 05/13/04 59.99 56.62 5,564.09 06/18/04 59.93 56.56 5,565.08 07/28/04 58.94 55.57 5,564.56 08/30/04 59.46 56.09 5,563.55 09/16/04 60.47 57.10 5,561.79 10/11/04 62.23 58.86 5,560.38 11/16/04 63.64 60.27 5,559.71 12/22/04 64.31 60.94 5,559.14 01/18/05 64.88 61 .51 5,558.65 02/28/05 65.37 62.00 5,558.54 03/15/05 65.48 62.11 5,558.22 04/26/05 65.80 62.43 5,558.54 05/24/05 65.48 62.11 5,559.24 06/30/05 64.78 61.41 5,559.38 07/29/05 64.64 61.27 5,559.23 09/12/05 64.79 61.42 5,557.67 12/07/05 66.35 62.98 5,557.92 03/08/06 66.10 62.73 5,558.47 06/13/06 65.55 62.18 5,558.42 07/18/06 65.60 62.23 5,558.09 11/07/06 65.93 62.56 5,557.34 02/27/07 66.68 63.31 Water Levels and Data over Time White Mesa Mill-Well TW4-16 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,625.28 5,628.65 3.37 147.6 5,547.11 05/02/07 76.91 73.54 5,558.52 08/14/07 65.50 62.13 5,559.02 10/10/07 65.00 61.63 5,561.04 03/26/08 62.98 59.61 5,560.06 06/24/08 63.96 60.59 5,559.32 08/26/08 64.70 61.33 5,558.89 10/14/08 65.13 61.76 5,558.40 03/03/09 65.62 62 .25 5,558.32 06/24/09 65.70 62.33 5,558.03 09/10/09 65.99 62.62 5,558.81 12/11/09 65.21 61.84 5,559.80 03/11/10 64.22 60.85 5,559.85 05/l 1/10 64.17 60.80 5,560.54 09/29/10 63.48 60.11 5,558.65 12/21/10 65.37 62.00 5,559.26 02/28/11 64.76 61.39 5,560.48 06/21/11 63.54 60.17 5,561.52 09/20/11 62.50 59.13 5,562.95 12/21 /11 61.07 57.70 5,563 .76 03/27/12 60.26 56.89 5,563.90 06/28/12 60.12 56.75 5,564.65 09/27/12 59.37 56.00 5,563.77 12/28/12 60.25 56.88 5,564.74 03/28/13 59.28 55.91 5,563.66 06/27/13 60.36 56.99 5,562.27 09/27/13 61.75 58.38 5,562.17 12/20/13 61.85 58.48 5,561.17 03/27/14 62.85 59.48 5,559.53 06/25/14 64.49 61.12 5,558.36 09/25/14 65.66 62.29 5,558.00 12/17/14 66.02 62.65 5,559.02 03/26/15 65.00 61.63 5,560.62 06/22/15 63.40 60.03 5,560.62 09/30/15 63.40 60.03 5,560.85 12/02/15 63.17 59.80 5,560.92 03/30/16 63.10 59.73 5,559.95 06/30/16 64.07 60.70 5,559.72 09/29/16 64.30 60.93 5,559.71 12/21/16 64.31 60.94 5,559.53 03/30/17 64.49 61.12 5,569.02 06/27/17 59.63 56.26 5,558.97 09/28/17 69.68 66.31 5,558.51 11/30/17 70.14 66.77 Water Levels and Data over Time White Mesa Mill-Well TW4-16 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,625.28 5,628.65 3.37 147.6 5,558.00 03/29/18 70.65 67.28 5,557.94 06/22/18 70.71 67.34 5,557.67 09/25/18 70.98 67.61 5,557.66 12/17/18 70.99 67.62 5,548.49 03/25/19 80.16 76.79 5,556.98 06/24/19 71.67 68.30 5,556.83 08/12/19 71.82 68.45 5,556.90 11/18/19 71.75 68.38 5,556.65 02/10/20 72.00 68.63 5,556.25 05/04/20 72.40 69.03 5,555.53 09/22/20 73 .12 69.75 5,555.37 12/30/20 73.28 69.91 5,555.38 03/11/21 73.27 69.9 5,554.94 06/24/21 73.71 70.34 5,554.95 08/13/21 73.70 70.33 5,555.23 12/30/21 73.42 70.05 5,554.68 02/10/22 73.97 70.60 5,554.93 06/28/22 73.72 70.35 5,554.47 08/15/22 74.18 70.81 5,554.26 11/17/22 74.39 71.02 5,553.79 03/24/23 74.86 71.49 5,553.80 06/26/23 74.85 71.48 5,553.75 09/28/23 74.90 71.53 00 Vl 00 0 Depth Below Measuring Point (ft.) -..J Vl -..J 0 °' Vl °' 0 Vl Vl Vl 0 1-----+-----+-------;----+----~-------;-----;--08/23/02 01/20/03 06/19/03 11/16/03 04/14/04 09/11/04 02/08/05 07/08/05 12/05/05 05/04/06 10/01/06 02/28/07 07/28/07 12/25/07 05/23/08 10/20/08 03/19/09 08/16/09 01/13/10 -06/12/10 11/09/10 04/08/11 09/05/11 02/02/12 07/01/12 11/28/12 04/27/13 -09/24/13 -02/21/14 -07/21/14 -12/18/14 05/17/15 -10/14/15 03/12/16 -08/09/16 01/06/17 -06/05/17 11/02/17 -04/01/18 08/29/18 01/26/19 -06/25/19 11/22/19 04/20/20 -09/17/20 -02/14/21 07/14/21 -12/11/21 -05/10/22 -10/07/22 03/06/23 • 08/03/23 12/31/23 05/29/24 L-------'------'---------'---....__ __ _,_ _____ ~ 10/26/24 ~ ~ ,&;;.. I ~ O'\ ~ ...... ~ "1 ~ ~ "C ...... =-0 < ~ "1 ~ a· ~ -~ C"' -= "C - Water Levels and Data over Time White Mesa Mill -Well MW-32 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,623.41 5,625.24 1.83 130.6 5,542.17 08/23/02 83 .07 81.24 5,542.39 09/11/02 82.85 81.02 5,542.61 10/23/02 82.63 80.80 5,542.49 11/22/02 82.75 80.92 5,542.82 12/03/02 82.42 80.59 5,543.03 01/09/03 82.21 80.38 5,543.04 02/12/03 82.20 80.37 5,543.41 03/26/03 81.83 80.00 5,543.69 04/02/03 81.55 79.72 5,543.77 05/01/03 81.47 79.64 5,544.01 06/09/03 81.23 79.40 5,544.05 07/07/03 81.19 79.36 5,543.99 08/04/03 81.25 79.42 5,544.17 09/11/03 81.07 79.24 5,544.06 10/02/03 81.18 79.35 5,544.03 11/07/03 81.21 79.38 5,543.94 12/03/03 81.30 79.47 5,543.98 01/15/04 81.26 79.43 5,543.85 02/10/04 81.39 79.56 5,544.05 03/28/04 81.19 79.36 5,544.33 04/12/04 80.91 79.08 5,544.55 05/13/04 80.69 78.86 5,544.59 06/18/04 80.65 78.82 5,545.08 07/28/04 80.16 78.33 5,545.26 08/30/04 79.98 78.15 5,545.48 09/16/04 79.76 77.93 5,545.61 10/11/04 79.63 77.80 5,545.46 11/16/04 79.78 77.95 5,545.66 12/22/04 79.58 77.75 5,545.33 01 /18/05 79.91 78.08 5,545.51 02/28/05 79.73 77.90 5,545.57 03/15/05 79.67 77.84 5,545.46 04/26/05 79.78 77.95 5,545.45 05/24/05 79.79 77.96 5,545.33 06/30/05 79.91 78.08 5,545.16 07/29/05 80.08 78.25 5,545.54 09/12/05 79.70 77.87 5,545.77 12/07/05 79.47 77.64 5,546.09 03/08/06 79.15 77.32 5,545.94 06/13/06 79.30 77.47 5,545.94 07/18/06 79.30 77.47 5,546.24 11/07/06 79.00 77.17 5,546.81 02/27/07 78.43 76.60 Water Levels and Data over Time White Mesa Mill -Well MW-32 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,623.41 5,625.24 1.83 130.6 5,546.56 05/02/07 78.68 76.85 5,546.81 08/15/07 78.43 76.6 5,546.96 10/10/07 78.28 76.45 5,547.90 03/26/08 77.34 75.51 5,548.08 06/25/08 77.16 75.33 5,548.42 08/26/08 76.82 74.99 5,548.05 10/14/08 77.19 75.36 5,548.29 03/03/09 76.95 75.12 5,548.09 06/24/09 77.15 75.32 5,547.79 09/10/09 77.45 75.62 5,548.09 12/11/09 77.15 75.32 5,548.50 03/11/10 76.74 74.91 5,548.89 05/11/10 76.35 74.52 5,548.83 09/29/10 76.41 74.58 5,548.97 12/21/10 76.27 74.44 5,548.68 02/28/11 76.56 74.73 5,549.33 06/21/11 75.91 74.08 5,549.19 09/20/11 76.05 74.22 5,550.06 12/21/11 75.18 73.35 5,550.31 03/27/12 74.93 73.10 5,550.32 06/28/12 74 .92 73 .09 5,550.88 09/27/12 74.36 72.53 5,550.29 12/28/12 74.95 73.12 5,551.54 03/28/13 73.70 71.87 5,550.34 06/27/13 74.90 73.07 5,551.35 09/27/13 73.89 72.06 5,551.33 12/20/13 73.91 72.08 5,550.97 03/27/14 74.27 72.44 5,550.16 06/25/14 75.08 73 .25 5,549.29 09/25/14 75.95 74.12 5,548.99 12/17/14 76.25 74.42 5,548.24 03/26/15 77.00 75.17 5,548.29 06/22/15 76.95 75.12 5,548.33 09/30/15 76.91 75.08 5,547.98 12/02/15 77.26 75.43 5,548.24 03/30/16 77.00 75.17 5,547.68 06/30/16 77.56 75.73 5,547.29 09/29/16 77.95 76.12 5,547.09 12/21/16 78.15 76.32 5,547.34 03/30/17 77.90 76.07 5,546.94 06/27/17 78.30 76.47 5,546.59 09/28/17 78.65 76.82 5,546.32 I 1/30/17 78.92 77.09 Water Levels and Data over Time White Mesa Mill -Well MW-32 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,623.41 5,625.24 1.83 130.6 5,546.19 03/29/18 79.05 77.22 5,545.99 06/22/18 79.25 77.42 5,545.57 09/26/18 79.67 77.84 5,545.56 12/17/18 79.68 77.85 5,545.08 03/26/19 80.16 78.33 5,544.99 06/24/19 80.25 78.42 5,544.87 08/12/19 80.37 78.54 5,544.70 11/19/19 80.54 78.71 5,544.57 02/13/20 80.67 78.84 5,544.99 05/05/20 80.25 78.42 5,543.69 09/22/20 81.55 79.72 5,543.67 12/30/20 81.57 79.74 5,543.64 03/11/21 81.60 79.77 5,543.20 06/24/21 82.04 80.21 5,543.06 08/11/21 82.18 80.35 5,543.37 12/30/21 81.87 80.04 5,542.66 02/10/22 82.58 80.75 5,542.36 06/28/22 82.88 81.05 5,542.44 08/15/22 82.80 80.97 5,542.31 11/17/22 82.93 81.10 5,542.38 03/24/23 82.86 81.03 5,542.39 06/27/23 82.85 81.02 5,541.79 09/28/23 83.45 81.62 00 ~ 00 N Depth Below Measuring Point (ft.) 00 0 -..J 00 -..J O'\ -..J ~ -..J N 1--_____,.__,..---f-----+-----+-----+-----+----+ 08/23/02 01/20/03 06/19/03 11/16/03 04/14/04 09/11/04 02/08/05 07/08/05 -12/05/05 05/04/06 10/01/06 02/28/07 07/28/07 12/25/07 05/23/08 10/20/08 03/19/09 08/16/09 01/13/10 06/12/10 11/09/10 04/08/11 09/05/11 02/02/12 07/01/12 -11/28/12 04/27/13 -09/24/13 02/21/14 -07/21/14 12/18/14 05/17/15 -10/14/15 -03/12/16 -08/09/16 01/06/17 -06/05/17 -11/02/17 -04/01/18 .• 08/29/18 -01/26/19 -06/25/19 -11/22/19 -04/20/20 -09/17/20 02/14/21 -07/14/21 -12/11/21 -05/10/22 10/07/22 -03/06/23 -08/03/23 12/31/23 05/29/24 ,..__ __ ____. ___ _._ ___ __._ ___ ~---~--~ 10/26/24 ~ ~ (,H N ~ ;-., 0 ~ "'C ~ =-0 < ~ ., ~ .... 9 ~ -? O"' -9 "'C - Water Levels and Data over Time White Mesa Mill -Well TW 4-18 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,639.13 5,641.28 2.15 136.9 5,585.13 08/23/02 56.15 54.00 5,585.41 09/11/02 55.87 53.72 5,585.47 10/23/02 55.81 53.66 5,585.40 11/22/02 55.88 53.73 5,585.68 12/03/02 55.60 53.45 5,585.90 01/09/03 55.38 53.23 5,590.79 02/12/03 50.49 48.34 5,586.18 03/26/03 55.10 52.95 5,586.36 04/02/03 54.92 52.77 5,586.24 05/01/03 55.04 52.89 5,584.93 06/09/03 56.35 54.20 5,584.46 07/07/03 56.82 54.67 5,584.55 08/04/03 56.73 54.58 5,584.01 09/11/03 57.27 55.12 5,583.67 10/02/03 57.61 55.46 5,583.50 11/07/03 57.78 55.63 5,584.08 12/03/03 57.20 55.05 5,585.45 01/15/04 55.83 53.68 5,585.66 02/10/04 55.62 53.47 5,586.13 03/28/04 55.15 53.00 5,586.39 04/12/04 54.89 52.74 5,586.66 05/13/04 54.62 52.47 5,586.77 06/18/04 54.51 52.36 5,587.35 07/28/04 53.93 51.78 5,586.34 08/30/04 54.94 52.79 5,585.85 09/16/04 55.43 53.28 5,585.22 10/11/04 56.06 53.91 5,584.70 11/16/04 56.58 54.43 5,584.81 12/22/04 56.47 54.32 5,584.68 01/18/05 56.60 54.45 5,585.02 02/28/05 56.26 54.11 5,585.25 03/15/05 56.03 53.88 5,586.31 04/26/05 54.97 52.82 5,586.97 05/24/05 54.31 52.16 5,586.58 06/30/05 54.70 52.55 5,586.10 07/29/05 55.18 53.03 5,586.05 09/12/05 55.23 53.08 5,585.86 12/07/05 55.42 53.27 5,587.13 03/08/06 54.15 52.00 5,585.93 06/13/06 55.35 53.20 5,585.40 07/18/06 55.88 53.73 5,585.38 11/07/06 55.90 53.75 5,585.83 02/27/07 55.45 53.30 Water Levels and Data over Time White Mesa Mill -Well TW 4-18 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,639.13 5,641.28 2.15 136.9 5,585.15 05/02/07 56.13 53 .98 5,586.47 06/24/08 54.81 52.66 5,586.30 08/26/08 54.98 52.83 5,585.21 10/14/08 56.07 53.92 5,584.47 03/03/09 56.81 54.66 5,584.35 06/24/09 56.93 54.78 5,583.88 09110/09 57.40 55.25 5,584.43 12/11/09 56.85 54.70 5,585.26 03/11/10 56.02 53.87 5,584.17 05/11/10 57. I I 54.96 5,583.61 09/29/IO 57.67 55.52 5,604.29 12/21/10 36.99 34.84 5,583.56 02/28/11 57.72 55.57 5,584.73 06/21/1 I 56.55 54.40 5,584.71 09/20/1 I 56.57 54.42 5,585.03 12/21/11 56.25 54.10 5,584.63 03/27/12 56.65 54.50 5,584.67 06/28/12 56.61 54.46 5,583.98 09/27/12 57.30 55.15 5,584.65 12/28/12 56.63 54.48 5,582.88 03/28/13 58.40 56.25 5,584.63 06/27/13 56.65 54.50 5,581.38 09/27/13 59.90 57.75 5,579.71 12/20/13 61.57 59.42 5,579.26 03/27/14 62.02 59.87 5,577.73 06/25/14 63.55 61.40 5,576.79 09/25/14 64.49 62.34 5,577.11 12/17/14 64.17 62.02 5,577.18 03/26/15 64.10 61.95 5,577.13 06/22/15 64.15 62.00 5,576.63 09/30/15 64.65 62.50 5,576.20 12/02/15 65.08 62.93 5,576.05 03/30/16 65.23 63 .08 5,575.35 06/30/16 65.93 63.78 5,575.02 09/29/16 66.26 64.11 5,574.34 12/21/16 66.94 64.79 5,574.73 03/30/17 66.55 64.40 5,574.13 06/27/17 67.15 65.00 5,573.51 09/28/17 67.77 65 .62 5,572.93 11/29/17 68.35 66.20 5,572.51 03/29/18 68.77 66.62 5,572.28 06/22/18 69.00 66.85 5,571.72 09/26/18 69.56 67.41 Water Levels and Data over Time White Mesa Mill -Well TW 4-18 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,639.13 5,641.28 2.15 136.9 5,571.45 12/17/18 69.83 67.68 5,570.86 03/26/19 70.42 68.27 5,570.60 06/24/19 70.68 68.53 5,570.53 08/12/19 70.75 68.60 5,570.39 11/19/19 70.89 68.74 5,570.03 02/10/20 71.25 69.10 5,569.68 05/04/20 71.60 69.45 5,568.90 09/22/20 72.38 70.23 5,568.70 12/30/20 72.58 70.43 5,568.73 03/11/21 72.55 70.40 5,568.28 06/24/21 73.00 70.85 5,568.17 08/13/21 73.11 70.96 5,568.41 12/30/21 72.87 70.72 5,567.75 02/10/22 73.53 71.38 5,567.34 06/28/22 73.94 71.79 5,567.35 08/15/22 73.93 71.78 5,567.22 11/17/22 74.06 71.91 5,566.81 03/24/23 74.47 72.32 5,566.79 06/26/23 74.49 72.34 5,566.76 09/28/23 74.52 72.37 00 0 --..] 0 0\ 0 Depth Below Measuring Point (ft.) Vl 0 ~ 0 l.;J 0 N 0 -0 0 08/23/02 01/20/03 06/19/03 11/16/03 04/14/04 09/11/04 02/08/05 07/08/05 12/05/05 05/04/06 10/01/06 02/28/07 07/28/07 12/25/07 05/23/08 ~ 10/20/08 ~ 03/19/09 ~ 08/16/09 I ~ 01/13/10 00 06/12/10 ~ 11/09/10 04/08/11 ...... ~ 09/05/11 .., 02/02/12 ~ ~ 07/01/12 "Cl 11/28/12 ...... =-04/27/13 0 09/24/13 < 02/21/14 ~ .., 07/21/14 ~ 12/18/14 .... 51 05/17/15 ~ 10/14/15 ,_ -03/12/16 ~ 08/09/16 C"' --01/06/17 51 -06/05/17 "Cl -11/02/17 ._, -04/01/18 08/29/18 -01/26/19 -06/25/19 -11/22/19 04/20/20 -09/17/20 -02/14/21 -07/14/21 -12/11/21 -05/10/22 -10/07/22 03/06/23 08/03/23 12/31/23 05/29/24 10/26/24 Water Levels and Data over Time White Mesa Mill -Well TW 4-19 Total or Measuring Measured Water Land Point Depth to Total Depth Elevation Surface Elevation Length Of Date Of Water to Water Total Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) {blw.LSD) Well 5,629.53 5,631.39 1.86 126.86 5,581.88 08/23/02 49.51 47.65 5,582.14 09/1 I/02 49.25 47.39 5,582.06 10/23/02 49.33 47.47 5,582.07 11/22/02 49.32 47.46 5,582.16 12/03/02 49.23 47.37 5,582.28 01/09/03 49.11 47.25 5,582.29 02/21/03 49.10 47.24 5,582.74 03/26/03 48.65 46.79 5,582.82 04/02/03 48.57 46.71 5,548.47 05/0I/03 82.92 81.06 5,564.76 06/09/03 66.63 64.77 5,562.53 07/07/03 68.86 67.00 5,564.10 08/04/03 67.29 65.43 5,566.01 08/30/04 65.38 63.52 5,555.16 09/16/04 76.23 74.37 5,549.80 I0/11/04 81.59 79.73 5,546.04 11/16/04 85.35 83.49 5,547.34 12/22/04 84.05 82.19 5,548.77 01/18/05 82.62 80.76 5,551.18 02/28/05 80.21 78 .35 5,556.81 03/15/05 74.58 72.72 5,562.63 04/26/05 68.76 66.90 5,573.42 05/24/05 57.97 56.11 5,552.94 07/29/05 78.45 76.59 5,554.00 09/12/05 77.39 75.53 5,555.98 12/07/05 75.41 73.55 5,552.00 03/08/06 79.39 77.53 5,545.74 06/13/06 85.65 83.79 5,544.06 07/18/06 87.33 85.47 5,548.81 11/07/06 82.58 80.72 5,543.59 02/27/07 87.80 85.94 5,544.55 05/02/07 86.84 84.98 5,558.97 08/I5/07 72.42 70.56 5,559.73 10/10/07 71.66 69.8 5,569.26 03/26/08 62.13 60.27 5,535.47 06/25/08 95.92 94.06 5,541.41 08/26/08 89.98 88.12 5,558.45 10/14/08 72.94 71.08 5,536.90 03/03/09 94.49 92.63 5,547.76 06/24/09 83.63 81.77 5,561.48 09/10/09 69.91 68.05 5,548.14 12/11/09 83.25 81.39 5,570.58 03/1 III 0 60.81 58.95 Water Levels and Data over Time White Mesa Mill -Well TW 4-19 Total or Measuring Measured Water Land Point Depth to Total Depth Elevation Surface Elevation Length Of Date Of Water to Water Total Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,629.53 5,631.39 1.86 126.86 5,561.35 05/11/10 70.04 68.18 5,535.26 09/29/10 96.13 94.27 5,568.40 12/21/10 62.99 61.13 5,550.36 02/28/11 81.03 79.17 5,570.41 06/21/11 60.98 59.12 5,567.84 09/20/11 63.55 61.69 5,571.32 12/21/11 60.07 58.21 5,572.40 03/27/12 58.99 57.13 5,572.39 06/28/12 59.00 57.14 5,571.40 09/27/12 59.99 58.13 5,568.21 12/28/12 63.18 61.32 5,572.51 03/28/13 58.88 57.02 5,566.00 06/27/13 65.39 63 .53 5,568.37 09/27/13 63.02 61.16 5,564.55 12/20/13 66.84 64.98 5,565.11 03/27/14 66.28 64.42 5,561.49 06/25/14 69.90 68.04 5,562.67 09/25/14 68.72 66.86 5,562.99 12/17/14 68.40 66.54 5,567.99 03/26/15 63.40 61.54 5,562.79 06/22/15 68.60 66.74 5,568.16 09/30/15 63.23 61.37 5,567.51 12/02/15 63.88 62.02 5,566.38 03/30/16 65.01 63.15 5,566.91 06/30/16 64.48 62.62 5,567.38 09/29/16 64.01 62.15 5,567.41 12/21/16 63.98 62.12 5,566.87 03/30/17 64.52 62.66 5,566.76 06/27/17 64.63 62.77 5,565.19 09/28/17 66.20 64.34 5,565.79 11/30/17 65.60 63.74 5,563.79 03/28/18 67.60 65.74 5,564.58 06/22/18 66.81 64.95 5,562.56 09/24/18 68.83 66.97 5,555.78 12/18/18 75.61 73.75 5,547.86 03/25/19 83.53 81 .67 5,557.99 06/24/19 73.40 71.54 5,554.26 08/12/19 77.13 75.27 5,561.87 11/18/19 69.52 67.66 5,561.71 02/10/20 69.68 67.82 5,563.21 05/04/20 68.18 66.32 5,559.19 09/21/20 72.20 70.34 5,554.95 12/28/20 76.44 74.58 Water Levels and Data over Time White Mesa Mill-Well TW4-19 Total or Measuring Measured Water Land Point Depth to Total Depth Elevation Surface Elevation Length Of Date Of Water to Water Total Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,629.53 5,631.39 1.86 126.86 5,558.24 03/l 1/21 73 .15 71.29 5,559.02 06/24/21 72.37 70 .51 5,557.99 08/13/21 73.40 71.54 5,559.25 12/30/21 72.14 70.28 5,560.12 02/10/22 71.27 69.41 5,559.22 06/28/22 72.17 70 .31 5,557.94 08/15/22 73.45 71.59 5,559.35 11/17/22 72.04 70.18 5,557.32 03 /24/23 74.07 72 .21 5,561.29 06/26/23 70.10 68 .24 5,559.21 09/25/23 72.18 70.32 0 0 '° 0 Depth Below Measuring Point (ft.) 00 0 --.J 0 °' 0 V, .i::-0 0 02/13/02 06/28/03 11/09/04 03/24/06 08/06/07 1-3 ~ 12/18/08 ,I.. I """" \0 05/02/10 ~ ...... ~ ""l ~ 09/14/11 ~ "'O ...... =- 01/26/13 0 < ~ ""l 1-3 06/10/14 -· a ~ - 10/23/15 ~ -r:r -a "'O 03/06/17 - 07/19/18 12/01/19 04/14/21 08/27/22 01/09/24 Water Levels and Data over Time White Mesa Mill-Well TW4-21 Total or Measuring Measured Total Water Land Point Date Of Depth to Depth to Total Elevation Surface Elevation Length Of Monitoring Water Water Depth Of (WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well 5,638.20 5,639.35 1.15 118.8 5,582.98 07/29/05 56.37 55.22 5,583.43 08/30/05 55.92 54.77 5,581.87 09/12/05 57.48 56.33 5,580.50 12/07/05 58.85 57.70 5,583.64 03/08/06 55.71 54.56 5,580.55 06/13/06 58.80 57.65 5,578.95 07/18/06 60.40 59.25 5,578.47 11/07/06 60.88 59.73 5,579.53 02/27/07 59.82 58.67 5,578.07 05/02/07 61.28 60.13 5,583.41 08/15/07 55.94 54.79 5,583.45 10/10/07 55.90 54.75 5,586.47 03/26/08 52.88 51.73 5,579.16 06/24/08 60.19 59.04 5,579.92 08/26/08 59.43 58.28 5,577.37 10/14/08 61.98 60.83 5,578.00 03/10/09 61.35 60.20 5,580.14 06/24/09 59.21 58.06 5,578.72 09/10/09 60.63 59.48 5,579.99 12/11/09 59.36 58.21 5,582.81 03/11/10 56.54 55.39 5,582.23 05/11/10 57.12 55.97 5,576.60 09/29/10 62.75 61.60 5,581.14 12/21/10 58.21 57.06 5,579.53 02/28/11 59.82 58.67 5,584.17 06/21/11 55.18 54.03 5,584.80 09/20/11 54.55 53.40 5,585.68 12/21/11 53.67 52.52 5,585.24 03/27/12 54.11 52.96 5,585.26 06/28/12 54.09 52.94 5,585.16 09/27/12 54.19 53.04 5,585.25 12/28/12 54.10 52.95 5,582.84 03/28/13 56.51 55.36 5,581.79 06/27/13 57.56 56.41 5,580.89 09/27/13 58.46 57.31 5,577.45 12/20/13 61.90 60.75 5,576.01 03/27/14 63.34 62.19 5,574.08 06/25/14 65.27 64.12 5,573.20 09/25/14 66.15 65.00 5,576.13 12/17/14 63.22 62.07 5,578.19 03/26/15 61.16 60.01 5,574.85 06/22/15 64.50 63.35 Water Levels and Data over Time White Mesa Mill-Well TW4-21 Total or Measuring Measured Total Water Land .Point Date Of Depth to Depth to Total Elevation Surface Elevation Length Of Monitoring Water Water Depth Of (WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well 5,638.20 5,639.35 1.15 118.8 5,573.05 09/30/15 66.30 65.15 5,569.88 12/02/15 69.47 68.32 5,571.81 03/30/16 67.54 66.39 5,571.86 06/30/16 67.49 66.34 5,570.82 09/29/16 68.53 67.38 5,570.45 12/21/16 68.90 67.75 5,574.53 03/30/17 64.82 63 .67 5,569.91 06/27/17 69.44 68.29 5,569.49 09/28/17 69.86 68.71 5,566.87 11/30/17 72.48 71.33 5,568.10 03/28/18 71.25 70.10 5,568.17 06/22/18 71.18 70.03 5,567.50 09/24/18 71.85 70.70 5,554.80 12/17/18 84.55 83.40 5,560.92 03/25/19 78.43 77.28 5,561.49 06/24/19 77.86 76.71 5,564.17 08/12/19 75.18 74.03 5,555.91 11/18/19 83.44 82.29 5,561.05 02/10/20 78.30 77.15 5,567.23 05/04/20 72.12 70.97 5,566.29 09/21/20 73.06 71.91 5,562.48 12/28/20 76.87 75.72 5,568.64 03/11/21 70.71 69.56 5,564.50 06/24/21 74.85 73.70 5,567.02 08/13/21 72.33 71.18 5,563.30 12/30/21 76.05 74.90 5,567.61 02/10/22 71.74 70.59 5,567.20 06/28/22 72.15 71.00 5,563.51 08/15/22 75.84 74.69 5,567.10 11/17/22 72.25 71.10 5,562.38 03/24/23 76.97 75.82 5,561.05 06/26/23 78.30 77.15 5,567.18 09/25/23 72.17 71.02 '° 0 00 0 --.J 0 Depth Below Measuring Point (ft.) °' 0 Vl 0 .j::,. 0 w 0 N 0 -0 0 07/29/05 12/26/05 05/25/06 10/22/06 03/21/07 08/18/07 01/15/08 06/13/08 11/10/08 04/09/09 09/06/09 02/03/10 07/03/10 11/30/10 04/29/11 09/26/11 02/23/12 07/22/12 12/19/12 05/18/13 10/15/13 03/14/14 08/11/14 01/08/15 06/07/15 11/04/15 04/02/16 08/30/16 01/27/17 06/26/17 11/23/17 04/22/18 09/19/18 02/16/19 07/16/19 12/13/19 05/11/20 10/08/20 03/07/21 08/04/21 01/01/22 "05/31/22 10/28/22 03/27/23 08/24/23 01/21/24 06/19/24 11/16/24 ""'3 ~ ,I:.,.. I N ),,,,o ~ ;- '"'I ~ ('I) "Cl -=-i ('I) '"'I ""'3 .... = ('I) ,_ ~ C"' -= "Cl ._, Water Levels and Data over Time White Mesa Mill -Well TW 4-22 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Mon itoring (blw.MP) (blw.LSD) Well 5,627.83 5,629.00 1.17 114.7 5,571.89 07/29/05 57.11 55.94 5,572.20 08/30/05 56.80 55.63 5,572.08 09/12/05 56.92 55.75 5,571.61 12/07/05 57.39 56.22 5,571.85 03/08/06 57.15 55.98 5,571.62 06/13/06 57.38 56.21 5,571.42 07/18/06 57.58 56.41 5,571.02 11/07/06 57.98 56.81 5571.24 02/27/07 57.76 56.59 5,570.75 06/29/07 58.25 57.08 5,571.82 08/14/07 57.18 56.01 5,571.99 10/10/07 57.01 55.84 5,573.05 03/26/08 55.95 54.78 5,573.04 06/24/08 55.96 54.79 5,573.04 08/26/08 55.96 54.79 5,573.02 10/14/08 55.98 54.81 5,573.19 03/10/09 55.81 54.64 5,573.32 06/24/09 55.68 54.51 5,573.17 09/10/09 55.83 54.66 5,573.52 12/11/09 55.48 54.31 5,573.88 03/11/10 55.12 53.95 5,574.29 05/11/10 54.71 53.54 5,574.88 09/29/10 54.12 52.95 5,574.44 12/21/10 54.56 53.39 5,574.49 02/28/11 54.51 53.34 5,574.97 06/21/11 54.03 52.86 5,575.06 09/20/11 53.94 52.77 5,575.69 12/21/11 53.31 52.14 5,575.61 03/27/12 53.39 52.22 5,575.62 06/28/12 53.38 52.21 5,575.90 09/27/12 53.10 51.93 5,575.59 12/28/12 53.41 52.24 5,573.50 03/28/13 55.50 54.33 5,572.45 06/27/13 56.55 55.38 5,572.25 09/27/13 56.75 55.58 5,569.93 12/20/13 59.07 57.90 5,569.36 03/27/14 59.64 58.47 5,569.02 06/25/14 59.98 58.81 5,570.00 09/25/14 59.00 57.83 5,568.60 12/17/14 60.40 59.23 5,557.00 03/26/15 72.00 70.83 5,570.93 06/22/15 58.07 56.90 Water Levels and Data over Time White Mesa Mill -Well TW 4-22 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,627.83 5,629.00 1.17 114.7 5,571.24 09/30/15 57.76 56.59 5,568.23 12/02/15 60.77 59.60 5,570.28 03/30/16 58.72 57 .55 5,570.75 06/30/16 58.25 57.08 5,544.60 09/29/16 84.40 83.23 5,565.11 12/21/16 63.89 62.72 5,567.99 03/30/17 61.01 59.84 5,569.17 06/27/17 59.83 58.66 5,569.37 09/28/17 59.63 58.46 5,566.48 11/30/17 62.52 61.35 5,568.30 03/28/18 60.70 59.53 5,568.42 06/22/18 60.58 59.41 5,567.98 09/24/18 61.02 59.85 5,553.65 12/17/18 75.35 74.18 5,550.09 03/25/19 78.91 77 .74 5,540.65 06/24/19 88.35 87.18 5,557.09 08/12/19 71.91 70.74 5,544.97 11/18/19 84.03 82.86 5,558.05 02/10/20 70.95 69.78 5,558.77 05/04/20 70.23 69.06 5,559.12 09/21/20 69.88 68.71 5,564.70 12/28/20 64.30 63.13 5,560.19 03/11/21 68.81 67.64 5,560.12 06/24/21 68.88 67 .71 5,560.80 08/13/21 68.20 67 .03 5,562.87 12/30/21 66.13 64 .96 5,559.35 02/10/22 69.65 68.48 5,559.49 06/28/22 69.51 68.34 5,548.25 08/15/22 80.75 79 .58 5,558.30 11/17/22 70.70 69 .53 5,559.30 03/24/23 69.70 68.53 5,560.71 06/26/23 68.29 67.12 5,558.81 09/25/23 70.19 69.02 -0 0 '° 0 00 0 Depth Below Measuring Point (ft.) -...] 0 0\ 0 Vl 0 .p.. 0 w 0 N 0 -0 0 07/29/05 12/26/05 05/25/06 10/22/06 03/21/07 08/18/07 01/15/08 06/13/08 11/10/08 04/09/09 09/06/09 02/03/10 07/03/10 ~ 11/30/10 ~ 04/29/11 """ 09/26/11 I N 02/23/12 N 07/22/12 ~ 12/19/12 ..... ~ • 05/18/13 ., 10/15/13 ~ ~ 03/14/14 "'C ..... 08/11/14 =- 01/08/15 0 06/07/15 -< ~ 11/04/15 ., ~ 04/02/16 -· 08/30/16 e ~ 01/27/17 -06/26/17 ~ 11/23/17 C"' -04/22/18 e "'C 09/19/18 -02/16/19 -07/16/19 12/13/19 05/11/20 10/08/20 03/07/21 08/04/21 01/01/22 05/31/22 10/28/22 03/27/23 08/24/23 01/21/24 06/19/24 11/16/24 Water Levels and Data over Time White Mesa Mill -Well TW 4-23 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,605.77 5,607.37 1.60 116.4 5,538.89 09/13/07 68.48 66.88 5,538.80 10/10/07 68.57 66.97 5,539.25 11/30/07 68.12 66.52 5,539.49 12/11/07 67.88 66.28 5,539.19 01/08/08 68.18 66.58 5,539.44 02/18/08 67.93 66.33 5,539.54 03/26/08 67.83 66.23 5,539.71 04/23/08 67.66 66.06 5539.48 05/30/08 67.89 66.29 5,539.53 06/24/08 67.84 66.24 5,539.44 07/16/08 67.93 66.33 5,539.68 08/26/08 67.69 66.09 5,541.18 09/10/08 66.19 64.59 5,539.57 10/14/08 67.80 66.20 5,539.29 11/26/08 68.08 66.48 5,539.55 12/29/08 67.82 66.22 5,540.15 01/26/09 67.22 65.62 5,539.74 02/24/09 67.63 66.03 5,539.86 03/06/09 67.51 65.91 5,539.72 04/07/09 67.65 66.05 5,539.84 05/29/09 67.53 65.93 5,540.12 06/30/09 67.25 65.65 5,540.12 07/31/09 67.25 65.65 5,540.27 08/31/09 67.10 65.50 5,540.13 09/10/09 67.24 65.64 5,540.64 12/11/09 66.73 65.13 5,541.15 03/11/10 66.22 64.62 5,541.61 05/11/10 65.76 64.16 5,541.47 09/29/10 65.90 64.30 5,541.54 12/21/10 65.83 64.23 5,541.54 02/28/11 65.83 64.23 5,541.98 06/21/11 65.39 63.79 5,541.90 09/20/11 65.47 63.87 5,542.58 12/21/11 64.79 63.19 5,542.59 03/27/12 64.78 63.18 5,542.61 06/28/12 64.76 63.16 5,542.92 09/27/12 64.45 62.85 5,542.61 12/28/12 64.76 63.16 5,543.48 03/28/13 63.89 62.29 5,543.23 06/27/13 64.14 62.54 5,543.12 09/27/13 64.25 62.65 5,542.96 12/20/13 64.41 62.81 Water Levels and Data over Time White Mesa Mill -Well TW 4-23 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,605.77 5,607.37 1.60 116.4 5,542.35 03/27/14 65.02 63.42 5,541.42 06/25/14 65.95 64.35 5,540.65 09/25/14 66.72 65.12 5,540.34 12/17/14 67.03 65.43 5,539.47 03/26/15 67.90 66.30 5,539.22 06/22/15 68.15 66.55 5,538.82 09/30/15 68.55 66.95 5,538.28 12/02/15 69.09 67.49 5,538.29 03/30/16 69.08 67.48 5,537.60 06/30/16 69.77 68.17 5,537.07 09/29/16 70.30 68.70 5,536.86 12/21/16 70.51 68.91 5,536.91 03/30/17 70.46 68.86 5,536.49 06/27/17 70.88 69.28 5,536.18 09/28/17 71.19 69.59 5,535.72 11/30/17 71.65 70.05 5,535.62 03/28/18 71.75 70.15 5,535.34 06/22/18 72.03 70.43 5,534.93 09/25/18 72.44 70.84 5,534.64 12/17/18 72.73 71.13 5,534.23 03/25/19 73.14 71.54 5,534.22 06/24/19 73.15 71.55 5,534.01 08/12/19 73.36 71.76 5,533.51 11/18/19 73.86 72.26 5,533.26 02/10/20 74.11 72.51 5,532.76 05/04/20 74.61 73.01 5,532.33 09/22/20 75.04 73.44 5,532.30 12/30/20 75.07 73.47 5,532.32 03/11/21 75.05 73.45 5,531.71 06/24/21 75.66 74.06 5,531.63 08/13/21 75.74 74.14 5,531.77 12/30/21 75.60 74.00 5,531.17 02/10/22 76.20 74.60 5,531.73 06/28/22 75.64 74.04 5530.84 08/15/22 76.53 74.93 5530.58 11/17/22 76.79 75.19 5530.34 03/24/23 77.03 75.43 5530.51 06/26/23 76.86 75.26 5530.2 09/28/23 77.17 75.57 I.O 0 00 0 ◄ ' ' ◄ ► ► •• ◄ .. ◄ ' ◄ ► ~ ' -.J 0 , • ~ ◄ ► Depth Below Measuring Point (ft.) ~ ► • • ' ◄ ► • ' ◄• ◄ • ◄ • • .. 0\ 0 Vl 0 .j::,. 0 w 0 N 0 ' ...... 0 ' 0 - - - - - - - - 09/13/07 02/10/08 07/09/08 12/06/08 05/05/09 10/02/09 03/01/10 07/29/10 12/26/10 05/25/11 10/22/11 03/20/12 ~ 08/17/12 ~ 01/14/13 ,i;;.. I 06/13/13 N (,H 11/10/13 ~ 04/09/14 ..... ~ 09/06/14 .., 02/03/15 C, ~ 07/03/15 "C ..... 11/30/15 =-0 04/28/16 -< ~ 09/25/16 .., 02/22/17 ~ -· 07/22/17 = ~ 12/19/17 --05/18/18 ~ C"' 10/15/18 -= 03/14/19 "C _, 08/11/19 01/08/20 06/06/20 11/03/20 04/02/21 08/30/21 01/27/22 06/26/22 11/23/22 04/22/23 09/19/23 02/16/24 07/15/24 12/12/24 Water Levels and Data over Time White Mesa Mill -Well TW 4-24 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,625.70 5,627.83 2.13 114.8 5,570.61 09/13/07 57.22 55.09 5,570.53 10/10/07 57.30 55.17 5,571.16 11/30/07 56.67 54.54 5,571.30 12/11/07 56.53 54.40 5,571.03 01/08/08 56.80 54.67 5,571.22 02/18/08 56.61 54.48 5,571.43 03/26/08 56.40 54.27 5,571.68 04/23/08 56.15 54.02 5571.52 05/30/08 56.31 54.18 5,571.34 06/24/08 56.49 54.36 5,571.28 07/16/08 56.55 54.42 5,571.34 08/26/08 56.49 54.36 5,571.23 09/10/08 56.60 54.47 5,571.12 10/14/08 56.71 54.58 5,570.95 11/26/08 56.88 54.75 5,570.92 12/29/08 56.91 54.78 5,571.65 01/26/09 56.18 54.05 5,571.31 02/24/09 56.52 54.39 5,571.37 03/06/09 56.46 54.33 5,571.21 04/07/09 56.62 54.49 5,571.23 05/29/09 56.60 54.47 5,571.42 06/30/09 56.41 54.28 5,571.38 07/31/09 56.45 54.32 5,571.48 08/31/09 56.35 54.22 5,571.28 09/10/09 56.55 54.42 5,571.64 12/11/09 56.19 54.06 5,571.86 03/11/10 55.97 53.84 5,571.91 05/11/10 55.92 53.79 5,572.18 09/29/10 55.65 53.52 5,571.86 12/21/10 55.97 53.84 5,571.78 02/28/11 56.05 53.92 5,572.40 06/21/11 55.43 53.30 5,572.19 09/20/11 55.64 53.51 5,573.02 12/21/11 54.81 52.68 5,573.03 03/27/12 54.80 52.67 5,573.02 06/28/12 54.81 52.68 5,573.13 09/27/12 54.70 52.57 5,573.05 12/28/12 54.78 52.65 5,566.53 03/28/13 61.30 59.17 5,564.63 06/27/13 63.20 61.07 5,570.01 09/27/13 57.82 55.69 5,566.85 12/20/13 60.98 58.85 5,562.33 03/27/14 65.50 63.37 Water Levels and Data over Time White Mesa Mill -Well TW 4-24 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,625.70 5,627.83 2.13 114.8 5,563.43 06/25/14 64.40 62.27 5,563.43 09/25/14 64.40 62.27 5,560.97 12/17/14 66.86 64.73 5,561.95 03/26/15 65.88 63.75 5,565.38 06/22/15 62.45 60.32 5,562.61 09/30/15 65.22 63.09 5,560.91 12/02/15 66.92 64.79 5,563.69 03/30/16 64.14 62.01 5,565.64 06/30/16 62.19 60.06 5,565.35 09/29/16 62.48 60.35 5,563.33 12/21/16 64.50 62.37 5,565.27 03/30/17 62.56 60.43 5,565.86 06/27/17 61.97 59.84 5,565.21 09/28/17 62.62 60.49 5,559.24 11/30/17 68.59 66.46 5,564.78 03/28/18 63.05 60.92 5,564.83 06/22/18 63.00 60.87 5,565.47 09/24/18 62.36 60.23 5,549.72 12/17/18 78.11 75.98 5,559.52 03/25/19 68.31 66.18 5,546.68 06/24/19 81.15 79.02 5,549.54 08/12/19 78.29 76.16 5,554.44 11/18/19 73.39 71.26 5,563.62 02/10/20 64.21 62.08 5,558.32 05/04/20 69.51 67.38 5,558 .88 09/21/20 68.95 66.82 5,556.76 12/28/20 71.07 68.94 5,557.89 03/11/21 69.94 67.81 5,561.51 06/24/21 66.32 64.19 5,559.12 08/13/21 68 .71 66.58 5,560.64 12/30/21 67.19 65.06 5,556.44 02/10/22 71.39 69.26 5,558.22 06/28/22 69.61 67.48 5,558.62 08/15/22 69.21 67.08 5,558.14 11/17/22 69.69 67.56 5,560.03 03/24/23 67.80 65.67 5,560.22 06/26/23 67.61 65.48 5,558.57 09/25/23 69.26 67.13 '-0 0 0 00 0 0 -.J 0 0 Depth Below Measuring Point (ft.) O'\ 0 0 V, :=, 0 -+:-0 0 (.;J 0 0 N 0 0 -0 0 0 0 09/13/07 • 02/10/08 07/09/08 12/06/08 • 05/05/09 10/02/09 • 03/01/10 07/29/10 12/26/10 • 05/25/11 • 10/22/11 03/20/12 ~ 08/17/12 ~ ,&;.. 01/14/13 I N 06/13/13 ,&;.. 11/10/13 ~ 04/09/14 ...... ~ '"t 09/06/14 t:, 02/03/15 ~ "'C 07/03/15 ...... =- 11/30/15 0 04/28/16 -< ~ '"t 09/25/16 ~ ... 02/22/17 a 07/22/17 ~ -12/19/17 ~ 05/18/18 C"' -10/15/18 a "'C 03/14/19 - 08/11/19 01/08/20 06/06/20 11/03/20 04/02/21 08/30/21 01/27/22 06/26/22 11/23/22 04/22/23 09/19/23 -02/16/24 07/15/24 Water Levels and Data over Time White Mesa Mill -Well TW 4-25 Total or Water Measuring Measured Total Elevation Land Point Depth to Depth to Total (WL) Surface Elevation Length Of Date Of Water Water Depth Of (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,642.82 5,644.91 2.09 136.7 5,601.86 09/13/07 43.05 40.96 5,601.89 10/10/07 43.02 40.93 5,602.57 11/30/07 42.34 40.25 5,602.82 12/11/07 42.09 40.00 5,601.94 01/08/08 42.97 40.88 5,599.13 02/18/08 45.78 43.69 5,597.11 03/26/08 47.80 45.71 5,595.51 04/23/08 49.40 47.31 5,594.42 05/30/08 50.49 48.40 5,594.26 06/24/08 50.65 48.56 5,586.67 07/16/08 58.24 56.15 5,594.17 08/26/08 50.74 48.65 5,594.23 09/10/08 50.68 48.59 5,594.12 10/14/08 50.79 48.70 5,594.06 11/26/08 50.85 48.76 5,594.87 12/29/08 50.04 47.95 5,595.89 01/26/09 49.02 46.93 5,596.27 02/24/09 48.64 46.55 5,596.47 03/06/09 48.44 46.35 5,596.74 04/07/09 48.17 46.08 5,597.55 05/29/09 47.36 45.27 5,598.11 06/30/09 46.80 44.71 5,598.22 07/31/09 46.69 44.60 5,598.52 08/31/09 46.39 44.30 5,598.49 09/10/09 46.42 44.33 5,599.48 12/11/09 45.43 43.34 5,599.75 03/11/10 45.16 43.07 5,599.63 05/11/10 45.28 43.19 5,598.68 09/29/10 46.23 44.14 5,598.66 12/21/10 46.25 44.16 5,598.18 02/28/11 46.73 44.64 5,598.61 06/21/11 46.30 44.21 5,598.08 09/20/11 46.83 44.74 5,598.23 12/21/11 46.68 44.59 5,597.41 03/27/12 47.50 45.41 5,597.41 06/28/12 47.50 45.41 5,595.60 09/27/12 49.31 47.22 5,597.41 12/28/12 47.50 45.41 5,597.43 03/28/13 47.48 45.39 5,587.61 06/27/13 57.30 55.21 5,585.91 09/27/13 59.00 56.91 5,561.00 12/20/13 83.91 81.82 Water Levels and Data over Time White Mesa Mill -Well TW 4-25 Total or Water Measuring Measured Total Elevation Land Point Depth to Depth to Total (WL) Surface Elevation Length Of Date Of Water Water Depth Of (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,642.82 5,644.91 2.09 136.7 5,584.79 03/27/14 60.12 58.03 5,582.44 06/25/14 62.47 60.38 5,583.95 09/25/14 60.96 58.87 5,581.13 12/17/14 63.78 61.69 5,587.40 03/26/15 57.51 55.42 5,581.91 06/22/15 63.00 60.91 5,581.40 09/30/15 63.51 61.42 5,578.42 12/02/15 66.49 64.40 5,579.42 03/30/16 65.49 63.40 5,579.25 06/30/16 65.66 63.57 5,579.68 09/29/16 65.23 63.14 5,577.73 12/21/16 67.18 65.09 5,584.44 03/30/17 60.47 58.38 5,580.19 06/27/17 64.72 62.63 5,573.63 09/28/17 71.28 69.19 5,577.88 11/30/17 67.03 64.94 5,543.71 03/28/18 101.20 99.11 5,575.26 06/22/18 69.65 67.56 5,578.78 09/24/18 66.13 64.04 5,567.86 12/17/18 77.05 74.96 5,572.46 03/25/19 72.45 70.36 5,571.58 06/24/19 73.33 71.24 5,572.15 08/12/19 72.76 70.67 5,572.66 11/18/19 72.25 70.16 5,572.77 02/10/20 72.14 70.05 5,572.46 05/04/20 72.45 70.36 5,575.17 09/21/20 69.74 67.65 5,574.42 12/28/20 70.49 68.40 5,574.90 03/11/21 70.01 67.92 5,575.01 06/24/21 69.90 67.81 5,575.66 08/13/21 69.25 67.16 5,578.11 12/30/21 66.80 64.71 5,578.07 02/10/22 66.84 64.75 5,574.87 06/28/22 70.04 67.95 5,574.46 08/15/22 70.45 68.36 5,574.96 11/17/22 69.95 67.86 5,574.82 03/24/23 70.09 68.00 5,573.09 06/26/23 71.82 69.73 5,575.23 09/25/23 69.68 67.59 --N 0 0 0 Depth Below Measuring Point (ft.) 00 0 0\ 0 -1»-o N 0 0 09/13/07 02/10/08 -07/09/08 -12/06/08 -05/05/09 -10/02/09 -03/01/10 -07/29/10 12/26/10 05/25/11 10/22/11 03/20/12 ~ 08/17/12 ~ ,I:;,,. 01/14/13 I N 06/13/13 UI 11/10/13 ~ -04/09/14 ...... ~ .., 09/06/14 c 02/03/15 ~ "'C 07/03/15 ...... =- 11/30/15 0 04/28/16 -< ~ .., 09/25/16 ~ -· 02/22/17 = 07/22/17 ~ -12/19/17 ~ 05/18/18 O"' -10/15/18 = "'C 03/14/19 -- 08/11/19 01/08/20 06/06/20 11/03/20 04/02/21 08/30/21 01/27/22 06/26/22 11/23/22 04/22/23 09/19/23 02/16/24 07/15/24 Water Levels and Data over Time White Mesa Mill -Well TW 4-26 Total or Measuring Mea ured Total Water Land Point Date Of Depth to Depth to Total Elevation Surface Elevation Length Of Monitoring Water Water Depth Of (WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well 5,599.98 5,601.68 1.70 87.7 5,536.90 06/14/10 64.78 63.08 5,536.95 09/29/10 64.73 63.03 5,537.17 12/21/10 64.51 62.81 5,537.16 02/28/11 64.52 62.82 5,537.57 06/21/11 64.11 62.41 5,537.59 09/20/11 64.09 62.39 5,538.16 12/21/11 63.52 61.82 5,538.18 03/27/12 63.50 61.80 5538.23 06/28/12 63.45 61.75 5,538.57 09/27/12 63.11 61.41 5,538.20 12/28/12 63.48 61.78 5,539.13 03/28/13 62.55 60.85 5,539.00 06/27/13 62.68 60.98 5,538.94 09/27/13 62.74 61.04 5,538.97 12/20/13 62.71 61.01 5,538.53 03/27/14 63.15 61.45 5,537.85 06/25/14 63.83 62.13 5,537.33 09/25/14 64.35 62.65 5,537.14 12/17/14 64.54 62.84 5,536.43 03/26/15 65.25 63.55 5,536.16 06/22/15 65.52 63.82 5,535.76 09/30/15 65.92 64.22 5,535.23 12/02/15 66.45 64.75 5,535.15 03/30/16 66.53 64.83 5,534.61 06/30/16 67.07 65.37 5,534.12 09/29/16 67.56 65.86 5,533.96 12/21/16 67.72 66.02 5,533.97 03/30/17 67.71 66.01 5,533.66 06/27/17 68.02 66.32 5,533.43 09/28/17 68.25 66.55 5,533.39 11/30/17 68.29 66.59 5,532.99 03/28/18 68.69 66.99 5,532.74 06/22/18 68.94 67.24 5,532.32 09/25/18 69.36 67.66 5,532.04 12/17/18 69.64 67.94 5,531.48 03/25/19 70.20 68.50 5,531.20 06/24/19 70.48 68.78 5,530.96 08/12/19 70.72 69.02 5,530.14 11/18/19 71.54 69.84 5,529.73 02/10/20 71.95 70.25 5,529.08 05/04/20 72.60 70.90 5,528.48 09/22/20 73.20 71.50 5,528.42 12/30/20 73.26 71.56 Water Levels and Data over Time White Mesa Mill-Well TW4-26 Total or Measuring Measured Total Water Land Point Date Of Depth to Depth to Total Elevation Surface Elevation Length Of Monitoring Water Water Depth Of (WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well 5,599.98 5,601.68 1.70 87.7 5,528.39 03/11/21 73.29 71.59 5,527.76 06/24/21 73.92 72.22 5,527.73 08/13/21 73 .95 72.25 5,527.80 12/30/21 73 .88 72.18 5,527.26 02/10/22 74.42 72.72 5,527.73 06/28/22 73.95 72.25 5,526.86 08/15/22 74.82 73 .12 5,526.62 11/17/22 75.06 73.36 5,526.45 03/24/23 75.23 73 .53 5,526.35 06/26/23 75.33 73.63 5,525.89 09/28/23 75.79 74.09 00 0 0 0 I --.J 0 0 0 I ◄ ~ ◄ I <► ◄ ◄► ◄ ► ► ► ► 0 ~ ► ► • ► <► '► ► ◄ ◄ ► • ◄ ◄ ► Depth Below Measuring Point (ft.) 0\ 0 0 0 Vl 0 0 0 .j::s. 0 0 0 w 0 0 0 I N 0 0 0 ' -0 0 0 ' 0 0 0 08/25/09 01/22/10 -06/21/10 11/18/10 -04/17/11 -09/14/11 02/11/12 -07/10/12 -12/07/12 05/06/13 10/03/13 ~ ~ 03/02/14 ... I N 07/30/14 O'I 12/27/14 ~ ...... 05/26/15 ~ ., 10/23/15 C, ~ 03/21/16 "C ...... =--08/18/16 0 -01/15/17 -< ~ ., 06/14/17 ~ .... 11/11/17 9 ~ -04/10/18 --~ 09/07/18 i::r -02/04/19 9 "C 07/04/19 -- 12/01/19 04/29/20 -09/26/20 02/23/21 07/23/21 12/20/21 -05/19/22 10/16/22 03/15/23 08/12/23 01/09/24 06/07/24 Water Levels and Data over Time White Mesa Mill -Well TW4-27 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,606.19 5 607.94 1.75 95.75 5,517.78 12/21/11 90.16 88.41 5,524.84 03/27/12 83.10 81.35 5,524.93 06/28/12 83.01 81.26 5,525.59 09/27/12 82.35 80.60 5,524.86 12/28/12 83.08 81.33 5,526.37 03/28/13 81.57 79.82 5,526.29 06/27/13 81.65 79.90 5,527.04 09/27/13 80.90 79.15 5,527.14 12/20/13 80.80 79.05 5,527.55 03/27/14 80.39 78.64 5,527.43 06/25/14 80.51 78.76 5,527.48 09/25/14 80.46 78.71 5,527.81 12/17/14 80.13 78.38 5,527.71 03/26/15 80.23 78.48 5,527.86 06/22/15 80.08 78.33 5,528.13 09/30/15 79.81 78.06 5,527.92 12/02/15 80.02 78.27 5,528.59 03/30/16 79.35 77.60 5,528.34 06/30/16 79.60 77.85 5,528.32 09/29/16 79.62 77.87 5,528.44 12/21/16 79.50 77.75 5,528.85 03/30/17 79.09 77.34 5,528.81 06/27/17 79.13 77.38 5,528.84 09/28/17 79.10 77.35 5,528.85 11/29/17 79.09 77.34 5,529.14 03/28/18 78.80 77.05 5,529.06 06/21/18 78.88 77.13 5,529.18 09/25/18 78.76 77.01 5,529.09 12/17/18 78.85 77.10 5,528.96 03/25/19 78.98 77.23 5,529.20 06/24/19 78.74 76.99 5,529.24 08/12/19 78.70 76.95 5,529.12 11/18/19 78.82 77.07 5,529.29 02/10/20 78.65 76.90 5,528.97 05/04/20 78.97 77.22 5,528.89 09/22/20 79.05 77.30 5,529.12 12/30/20 78.82 77.07 5,529.21 03/11/21 78.73 76.98 5,528.90 06/24/21 79.04 77.29 5,528.76 08/13/21 79.18 77.43 5,529.06 12/30/21 78.88 77.13 5,528.79 02/10/22 79.15 77.40 5,528.85 06/28/22 79.09 77.34 5,528.69 08/15/22 79.25 77.50 5,528.49 11/17/22 79.45 77.70 5528.49 03/24/23 79.45 77.70 Water Levels and Data over Time White Mesa Mill -Well TW4-27 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,606.19 5,607.94 1.75 95.75 5528.69 06/26/23 79.25 77.50 5528.55 09/28/23 79.39 77.64 lO N a 0 lO 0 a 0 Depth Below Measuring Point (ft.) 00 00 a 0 00 O'\ a 0 00 _,,. a 0 00 N a 0 00 0 a 0 -.J 00 a 0 04/17/11 09/14/11 02/11/12 07/10/12 12/07/12 05/06/13 10/03/13 03/02/14 07/30/14 12/27/14 05/26/15 ~ 10/23/15 ~ ... I 03/21/16 N -...l 08/18/16 ~ 01/15/17 -nl .., 06/14/17 ~ nl 11/11/17 "C -=-04/10/18 0 < 09/07/18 nl .., 02/04/19 ~ ... 07/04/19 = nl -12/01/19 ~ 04/29/20 O"' -= 09/26/20 "C -02/23/21 07/23/21 12/20/21 05/19/22 10/16/22 03/15/23 08/12/23 01/09/24 06/07/24 Water Levels and Data over Time White Mesa Mill -Well TW 4-28 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,613.52 5,617.00 3.48 108.48 5,580.69 03/28/13 36.31 32.83 5,580.30 06/27/13 36.70 33.22 5,580.35 09/27/13 36.65 33.17 5,580.25 12/20/13 36.75 33.27 5,579.83 03/27/14 37.17 33.69 5,579.21 06/25/14 37.79 34.31 5,578.84 09/25/14 38.16 34.68 5,578.72 12/17/14 38.28 34.80 5,578.11 03/26/15 38.89 35.41 5,577.83 06/22/15 39.17 35.69 5,577.56 09/30/15 39.44 35.96 5,577.27 12/02/15 39.73 36.25 5,577.25 03/30/16 39.75 36.27 5,576.75 06/30/16 40.25 36.77 5,576.36 09/29/16 40.64 37.16 5,576.13 12/21/16 40.87 37.39 5,575.92 03/30/17 41.08 37.60 5,575.50 06/27/17 41.50 38.02 5,575.08 09/28/17 41.92 38.44 5,574.80 11/29/17 42.20 38.72 5,574.36 03/28/18 42.64 39.16 5,573.92 06/22/18 43.08 39.60 5,572.37 09/25/18 44.63 41.15 5,571.74 12/17/18 45.26 41.78 5,570.65 03/25/19 46.35 42.87 5,570.60 06/24/19 46.40 42.92 5,570.24 08/12/19 46.76 43.28 5,569.87 11/18/19 47.13 43.65 5,569.89 02/10/20 47.11 43.63 5,569.01 05/04/20 47.99 44.51 5,568.41 09/22/20 48.59 45.11 5,568.29 12/30/20 48.71 45.23 5,568.32 03/11/21 48.68 45.20 5,567.79 06/24/21 49.21 45.73 5,567.64 08/13/21 49.36 45.88 5,567.89 12/30/21 49.11 45.63 5,567.24 02/10/22 49.76 46.28 5,567.75 06/28/22 49.25 45.77 5,567.73 08/15/22 49.27 45.79 5,567.42 11/17/22 49.58 46.10 5,567.16 03/24/23 49.84 46.36 5,566.74 06/26/23 50.26 46.78 5,566.43 09/28/23 50.57 47.09 0\ 0 0 0 Depth Below Measuring Point (ft.) Vl .j::,. '->-l N 0 0 0 0 o o o o 0 0 0 0 -0 0 0 0 0 0 07/10/12 12/07/12 05/06/13 10/03/13 03/02/14 07/30/14 12/27/14 05/26/15 10/23/15 03/21/16 08/18/16 01/15/17 06/14/17 11/11/17 04/10/18 09/07/18 02/04/19 07/04/19 12/01/19 04/29/20 09/26/20 02/23/21 07/23/21 12/20/21 05/19/22 10/16/22 03/15/23 08/12/23 01/09/24 06/07/24 ~ ~ ,&;... I N 00 ~ -~ "1 ~ ~ "Cl -=-0 < ~ "1 ~ .... 9 ~ -? O"' -9 "Cl - Water Levels and Data over Time White Mesa Mill -Well TW 4-29 Total or Measuring Measured Water Land Point Depth to Total Depth Total Elevation Surface Elevation Length Of Date Of Water to Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,602.56 5,606.04 3.48 94.48 5,533.98 03/28/13 72.06 68.58 5,533.84 06/27/13 72.20 68.72 5,534.27 09/27/13 71.77 68.29 5,534.43 12/20/13 71.61 68.13 5,534.32 03/27/14 71.72 68.24 5,533.85 06/25/14 72.19 68.71 5,533.53 09/25/14 72.51 69.03 5,533.60 12/17/14 72.44 68.96 5,533.04 03/26/15 73.00 69.52 5,532.93 06/22/15 73.11 69.63 5,532.79 09/30/15 73.25 69.77 5,532.34 12/02/15 73.70 70.22 5,532.54 03/30/16 73.50 70.02 5,532.01 06/30/16 74.03 70.55 5,531.58 09/29/16 74.46 70.98 5,531.49 12/21/16 74.55 71.07 5,531.60 03/30/17 74.44 70.96 5,531.24 06/27/17 74.80 71.32 5,530.95 09/28/17 75.09 71.61 5,530.83 11/29/17 75.21 71.73 5,530.74 03/28/18 75.30 71.82 5,530.54 06/21/18 75.50 72.02 5,530.28 09/25/18 75.76 72.28 5,530.11 12/17/18 75.93 72.45 5,527.99 03/25/19 78.05 74.57 5,529.77 06/24/19 76.27 72.79 5,529.64 08/12/19 76.40 72.92 5,529.23 11/18/19 76.81 73.33 5,529.10 02/10/20 76.94 73.46 5,528.51 05/04/20 77.53 74.05 5,528.21 09/22/20 77.83 74.35 5,528.13 12/30/20 77.91 74.43 5,528.13 03/11/21 77.91 74.43 5,527.67 06/24/21 78.37 74.89 5,527.56 08/13/21 78.48 75.00 5,527.84 12/30/21 78.20 74.72 5,527.28 02/10/22 78.76 75.28 5,527.66 06/28/22 78.38 74.90 5,526.89 08/15/22 79.15 75.67 5,526.68 11/17/22 79.36 75.88 5526.57 03/24/23 79.47 75.99 5526.43 06/26/23 79.61 76.13 5526.36 09/28/23 79.68 76.20 00 -0 0 00 0 0 0 Depth Below Measuring Point (ft.) .....J .....J .....J .....J .....J .....J \0 00 .....J 0\ Vl +:> o o o o o o 0 0 0 0 0 0 .....J w 0 0 .....J N 0 0 .....J -0 0 07/10/12 12/07/12 05/06/13 10/03/13 03/02/14 07/30/14 12/27/14 05/26/15 10/23/15 03/21/16 08/18/16 "'01/15/17 06/14/17 11/11/17 -04/10/18 -09/07/18 02/04/19 07/04/19 12/01/19 04/29/20 ,_ 09/26/20 02/23/21 07/23/21 -12/20/21 -05/19/22 • 10/16/22 03/15/23 08/12/23 01/09/24 06/07/24 ~ ~ ,I., I N \0 ~ .... ~ ""l ~ ~ "'C .... =-0 < ~ ""l ~ ... a ~ -~ O"' -a "'C - Water Levels and Data over Time White Mesa Mill -Well TW 4-30 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,599.33 5,602.81 3.48 93.48 5,524.78 03/28/13 78.03 74.55 5,524.79 06/27/13 78 .02 74.54 5,525.54 09/27/1 3 77.27 73.79 5,525.81 12/20/13 77 .00 73.52 5,525.98 03/27/14 76.83 73.35 5,525.91 06/25/14 76.90 73.42 5,526.00 09/25/14 76.81 73.33 5,526.41 12/17/14 76.40 72.92 5,526.23 03/26/15 76.58 73.10 5,526.48 06/22/15 76.33 72 .85 5,526.74 09/30/15 76.07 72.59 5,526.56 12/02/1 5 76 .25 72.77 5,527.26 03/30/16 75.55 72.07 5,527.04 06/30/16 75.77 72.29 5,526.97 09/29/16 75.84 72.36 5,527.17 12/21/16 75.64 72.16 5,527.65 03/30/17 75.16 71.68 5,527.54 06/27/17 75.27 71.79 5,527.56 09/28/17 75.25 71.77 5,527.59 11/29/17 75.22 71.74 5,527.88 03/28/18 74.93 71.45 5,527.86 06/21 /18 74.95 71.47 5,525.76 09/25/18 77.05 73.57 5,527.87 12/17/18 74.94 71.46 5,527.69 03/25/19 75.12 71.64 5,528.01 06/24/19 74.80 71.32 5,528.04 08/12/19 74.77 71.29 5,527.94 11/18/19 74.87 71.39 5,528.12 02/10/20 74.69 71.21 5,527.73 05/04/20 75.08 71.6 5,527.75 09/22/20 75.06 71.58 5,527.90 12/30/20 74.91 71.43 5,527.96 03/11/21 74.85 71.37 5,527.75 06/24/21 75.06 71.58 5,527.65 08/13/21 75.16 71.68 5,527.88 12/30/21 74.93 71.45 5,527.63 02/10/22 75.18 71.7 5,527.77 06/28/22 75 .04 71.56 5,527.50 08/15/22 75.31 71.83 5,527.36 11/17/22 75.45 71.97 5,527.35 03/24/23 75.46 71.98 5,527.50 06/26/23 75.31 71.83 5,527.44 09/28/23 75.37 71.89 -...J 00 Vl 0 -...J 00 0 0 Depth Below Measuring Point (ft.) -...J -...J Vl 0 -...J -...J 0 0 -...J 0\ Vl 0 -...J 0\ 0 0 -...J Vl Vl 0 -...J Vl 0 0 -...J ;I'>- Vl 0 L 07/10/12 12/07/12 05/06/13 10/03/13 -03/02/14 07/30/14 12/27/14 05/26/15 ~ 10/23/15 ~ 03/21/16 ,&. I ~ 08/18/16 0 ~ 01/15/17 ...... ~ 06/14/17 ., ~ 11/11/17 ~ "'C ...... 04/10/18 =- 09/07/18 0 -< ~ 02/04/19 ., ~ ... 07/04/19 = ~ 12/01/19 -? 04/29/20 C"' -09/26/20 = "'C 02/23/21 - 07/23/21 12/20/21 05/19/22 10/16/22 03/15/23 08/12/23 01/09/24 06/07/24 Water Levels and Data over Time White Mesa Mill -Well TW 4-31 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,601.10 5,604.58 3.48 107.48 5,520.17 03/28/13 84.41 80.93 5,520.36 06/27/13 84.22 80.74 5,521.22 09/27/13 83.36 79.88 5,521.81 12/20/13 82.77 79.29 5,522.25 03/27/14 82.33 78.85 5,522.32 06/25/14 82.26 78.78 5,522.64 09/25/14 81.94 78.46 5,523.27 12/17/14 81.31 77.83 5,523.33 03/26/15 81.25 77.77 5,523.82 06/22/15 80.76 77.28 5,524.34 09/30/15 80.24 76.76 5,524.29 12/02/15 80.29 76.81 5,525.32 03/30/16 79.26 75.78 5,525.33 06/30/16 79.25 75.77 5,525.43 09/29/16 79.15 75.67 5,525.81 12/21/16 78.77 75.29 5,526.48 03/30/17 78.10 74.62 5,526.53 06/30/17 78.05 74.57 5,526.68 09/28/17 77.90 74.42 5,526.82 11/29/17 77.76 74.28 5,527.28 03/28/18 77.30 73.82 5,527.36 06/21/18 77.22 73.74 5,529.67 09/25/18 74.91 71.43 5,527.58 12/17/18 77.00 73.52 5,527.53 03/25/19 77.05 73.57 5,527.94 06/24/19 76.64 73.16 5,528.03 08/12/19 76.55 73.07 5,528.02 11/18/19 76.56 73.08 5,528.30 02/10/20 76.28 72.80 5,528.01 05/04/20 76.57 73.09 5,528.13 09/22/20 76.45 72.97 5,528.41 12/30/20 76.17 72.69 5,528.59 03/11/21 75.99 72.51 5,528.34 06/24/21 76.24 72.76 5,528.17 08/13/21 76.41 72.93 5,528.49 12/30/21 76.09 72.61 5,528.36 02/10/22 76.22 72.74 5,528.30 06/28/22 76.28 72.80 5,528.30 08/15/22 76.28 72.80 5,528.15 11/17/22 76.43 72.95 5,528.64 03/24/23 75.94 72.46 5,528.48 06/26/23 76.10 72.62 5,528.38 09/28/23 76.20 72.72 Depth Below Measuring Point (ft.) 00 00 00 00 -...J -...J -...J O"\ .j:,. N 0 00 O"\ .j:,. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 L 07/10/12 12/07/12 05/06/13 -10/03/13 03/02/14 07/30/14 12/27/14 ~ 05/26/15 ~ 10/23/15 ,&;;.. I CH 03/21/16 ~ ~ 08/18/16 ...... ~ 01/15/17 ""l 06/14/17 ~ ~ "'CS 11/11/17 ...... =- 04/10/18 0 -< 09/07/18 ~ ""l 02/04/19 ~ ... = 07/04/19 ~ --12/01/19 ~ 04/29/20 C"' -= -09/26/20 "'CS -02/23/21 -07/23/21 -12/20/21 05/19/22 10/16/22 03/15/23 08/12/23 01/09/24 06/07/24 Water Levels and Data over Time White Mesa Mill -Well TW 4-32 Measuring Total or Total Water Land Measured Total Elevation Surface Point Length Of Date Of Depth to Depth to Depth Of (WL) (LSD) Elevation Riser (L) Monitoring Water Water Well (M P) {blw.MP} (blw.LSD) 5,610.20 5,611.84 1.64 114.64 5,564.43 09/27/13 47.41 45.77 5,563.74 12/20/13 48.10 46.46 5,563.24 03/27/14 48.60 46.96 5,562.43 06/25/14 49.41 47.77 5,561.90 09/25/14 49.94 48.30 5,560.93 12/17/14 50.91 49.27 5,561.35 03/26/15 50.49 48.85 5,561.15 06/22/15 50.69 49.05 5,560.96 09/30/15 50.88 49.24 5,560.58 12/02/15 51.26 49.62 5,560.85 03/30/16 50.99 49.35 5,560.25 06/30/16 51.59 49.95 5,559.69 09/29/16 52.15 50.51 5,559.75 12/21/16 52.09 50.45 5,560.14 03/30/17 51.70 50.06 5,559.44 06/27/17 52.40 50.76 5,558.99 09/28/17 52.85 51.21 5,558.84 11/29/17 53.00 51.36 5,558.85 03/28/18 52.99 51.35 5,558.52 06/22/18 53.32 51.68 5,557.92 09/25/18 53.92 52.28 5,557.89 12/17/18 53.95 52.31 5,557.24 03/25/19 54.60 52.96 5,557.41 06/24/19 54.43 52.79 5,557.03 08/12/19 54.81 53.17 5,556.86 11/18/19 54.98 53.34 5,557.04 02/10/20 54.80 53.16 5,556.29 05/04/20 55.55 53.91 5,555.99 09/22/20 55.85 54.21 5,555.99 12/30/20 55.85 54.21 5,556.19 03/11/21 55.65 54.01 5,555.54 06/24/21 56.30 54.66 5,555.41 08/13/21 56.43 54.79 5,555.56 12/30/21 56.28 54.64 5,555.23 02/10/22 56.61 54.97 5,555.56 06/28/22 56.28 54.64 5,554.76 08/15/22 57.08 55.44 5,554.52 11/17/22 57.32 55.68 5555.13 03/24/23 56.71 55.07 5554.53 06/26/23 57.31 55.67 5554.39 09/28/23 57.45 55.81 -..J 0 0 0 O'\ 0 0 0 ◄ ◄ ► ' ◄ ► ◄► ◄► ► ' ◄► ► ◄ ► ◄ ◄ ► ◄ ♦ Depth Below Measuring Point (ft.) ◄ Vl 0 0 0 ◄ • • • ◄ ► 0 ► 0 • • +'> 9 0 0 w 0 0 0 N 0 0 0 I ...... 9 0 0 I 0 0 0 - - - - . - - - - - - 12/07/12 05/06/13 10/03/13 03/02/14 07/30/14 12/27/14 05/26/15 10/23/15 03/21/16 08/18/16 01/15/17 06/14/17 11/11/17 04/10/18 09/07/18 02/04/19 07/04/19 12/01/19 04/29/20 09/26/20 02/23/21 07/23/21 12/20/21 05/19/22 10/16/22 03/15/23 08/12/23 01/09/24 06/07/24 ~ ~ ~ I ~ N ~ ~ .... tD .., ~ tD '"I:, .... =-0 < tD .., ~ ... a tD --~ r::J" -a '"I:, ._, Water Levels and Data over Time White Mesa Mill -Well TW 4-33 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,605.20 5,606.73 1.53 86.23 5,536.70 09/27/13 70.03 68.50 5,536.62 12/20/13 70.11 68.58 5,536.49 03/27/14 70.24 68.71 5,536.06 06/25/14 70.67 69.14 5,535.73 09/25/14 71.00 69.47 5,535.73 12/17/14 71.00 69.47 5,535.14 03/26/15 71.59 70.06 5,534.98 06/22/15 71.75 70.22 5,534.81 09/30/15 71.92 70.39 5,534.34 12/02/15 72.39 70.86 5,534.33 03/30/16 72.40 70.87 5,533.90 06/30/16 72.83 71.30 5,533.48 09/29/16 73.25 71.72 5,533.39 12/2 1/16 73.34 71.81 5,533.28 03/30/17 73.45 71.92 5,533.01 06/27/17 73.72 72.19 5,532.67 09/28/17 74.06 72.53 5,532.53 11/29/17 74.20 72.67 5,532.37 03/28/18 74.36 72.83 5,532.13 06/21/18 74.60 73.07 5,531.82 09/25/18 74.91 73.38 5,531.61 12/17/18 75.12 73.59 5,531.14 03/25/19 75.59 74.06 5,531.08 06/24/19 75.65 74.12 5,530.98 08/12/19 75.75 74.22 5,530.45 11/18/19 76.28 74.75 5,530.22 02/10/20 76.51 74.98 5,529.68 05/04/20 77.05 75.52 5,529.30 09/22/20 77.43 75.90 5,529.15 12/30/20 77.58 76.05 5,529.07 03/11/21 77.66 76.13 5,528.64 06/24/21 78.09 76.56 5,528.48 08/13/21 78.25 76.72 5,528.74 12/30/21 77.99 76.46 5,528.18 02/10/22 78.55 77.02 5,528.57 06/28/22 78.16 76.63 5,527.78 08/15/22 78.95 77.42 5,527.65 11/17/22 79.08 77.55 5,527.34 03/24/23 79.39 77.86 5,527.28 06/26/23 79.45 77.92 5,527.21 09/28/23 79.52 77.99 00 0 0 0 --.J 00 0 0 Depth Below Measuring Point (ft.) --.J 0\ 0 0 --.J ~ 0 0 --.J N 0 0 --.J 0 0 0 0\ 00 0 0 L 12/07/12 -05/06/13 -10/03/13 -03/02/14 -07/30/14 -12/27/14 -05/26/15 -10/23/15 ~ ~ -03/21/16 ~ I (,H -08/18/16 (,H 01/15/17 ~ ...... -06/14/17 ~ ., -11/11/17 ~ ~ ""C 04/10/18 ...... =- -09/07/18 0 < ~ -02/04/19 ., ~ -07/04/19 ... 9 ~ .• 12/01/19 --~ -04/29/20 C"' --09/26/20 9 ""C -02/23/21 - -07/23/21 12/20/21 •· 05/19/22 10/16/22 03/15/23 08/12/23 01/09/24 06/07/24 Water Levels and Data over Time White Mesa Mill -Well TW 4-34 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,601.60 5,603.34 1.74 95.74 5,534.04 09/27/13 69.30 67.56 5,534.14 12/20/13 69.20 67.46 5,533.89 03/27/14 69.45 67.71 5,533.32 06/25/14 70.02 68.28 5,532.94 09/25/14 70.40 68.66 5,532.99 12/17/14 70.35 68.61 5,532.37 03/26/15 70.97 69.23 5,532.24 06/22/15 71.10 69.36 5,532.08 09/30/15 71.26 69.52 5,531.79 12/02/15 71.55 69.81 5,531.80 03/30/16 71.54 69.80 5,531.28 06/30/16 72.06 70.32 5,530.87 09/29/16 72.47 70.73 5,530.74 12/21/16 72.60 70.86 5,530.79 03/30/17 72.55 70.81 5,530.43 06/27/17 72.91 71.17 5,530.12 09/28/17 73.22 71.48 5,530.01 11/29/17 73.33 71.59 5,529.84 03/28/18 73.50 71.76 5,529.64 06/21/18 73.70 71.96 5,529.39 09/25/18 73.95 72.21 5,529.23 12/17/18 74.11 72.37 5,528.83 03/25/19 74.51 72.77 5,528.84 06/24/19 74.50 72.76 5,528.75 08/12/19 74.59 72.85 5,528.30 11/18/19 75.04 73.30 5,528.18 02/10/20 75.16 73.42 5,527.62 05/04/20 75.72 73.98 5,527.28 09/22/20 76.06 74.32 5,527.22 12/30/20 76.12 74.38 5,527.10 03/11/21 76.24 74.50 5,526.73 06/24/21 76.61 74.87 5,526.63 08/13/21 76.71 74.97 5,526.78 12/30/21 76.56 74.82 5,526.26 02/10/22 77.08 75.34 5,525.76 06/28/22 77.58 75.84 5,525.83 08/15/22 77.51 75.77 5,525.67 11/17/22 77.67 75.93 5,525.37 03/24/23 77.97 76.23 5,525.49 06/26/23 77.85 76.11 5,525.32 09/28/23 78.02 76.28 £Z/~I/£0 - lZ/1£/0I --Q.. = 0Z/81/90 --,.Q 4::: _, QI = .... 61/t0/ZO -~ I. QI > 0 -= ...... l I/ZZ/60 Q.. QI A I. QI ...... ~ 91/01/~0 - "" ~ I "" ~ ~ tl/LZ/ZI £1/tl/80 Z:l/10/t0 0 0 0 0 0 0 0 0 0 0 0 0 ~ 0 0 ~ ~ ~ 0 ~ 0 0 ~ ~ 00 0\ ci -N C") ~ V) \0 r--: 00 0\ \0 \0 r--r--r--r--r--r--r--r--r--r-- (·y:) lll!Od 13upnsB;:iW M0{;:,8 qid;:ia Water Levels and Data over Time White Mesa Mill -Well TW 4-35 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,598.67 5,599.87 1.20 86.5 5,525.52 9/25/2014 74.35 73.15 5,525.72 12/17/2014 74.15 72.95 5,525.56 3/26/2015 74.31 73.11 5,525.67 6/22/2015 74.20 73.00 5,525.81 9/30/2015 74.06 72.86 5,525.57 12/2/2015 74.30 73.10 5,526.01 3/30/2016 73.86 72.66 5,525.75 6/30/2016 74.12 72.92 5,525.57 9/29/2016 74.30 73.10 5,525.62 12/21/2016 74.25 73.05 5,525.87 3/30/2017 74.00 72.80 5,525.70 6/27/2017 74.17 72.97 5,525.57 9/28/2017 74.30 73.10 5,525.56 11/29/2017 74.31 73.11 5,525.64 3/28/2018 74.23 73.03 5,525.56 6/21/2018 74.31 73.11 5,525.46 9/25/2018 74.41 73.21 5,525.37 12/17/2018 74.50 73.30 5,525.12 3/25/2019 74.75 73.55 5,525.35 6/24/2019 74.52 73.32 5,525.31 8/12/2019 74.56 73.36 5,525.12 11/18/2019 74.75 73.55 5,525.17 2/10/2020 74.70 73.50 5,524.80 5/4/2020 75.07 73.87 5,524.71 9/22/2020 75.16 73.96 5,524.82 12/30/2020 75.05 73.85 5,524.49 3/11/2021 75.38 74.18 5,524.52 6/24/2021 75.35 74.15 5,524.45 8/13/2021 75.42 74.22 5,524.58 12/30/2021 75.29 74.09 5,524.30 2/10/2022 75.57 74.37 5,524.47 6/28/2022 75.40 74.20 5,524.09 8/15/2022 75.78 74.58 5,523.89 11/17/2022 75.98 74.78 5,523.80 3/24/2023 76.07 74.87 5,523.95 6/26/2023 75.92 74.72 5,523.90 9/28/2023 75.97 74.77 vl/LZ/LO ....---------.-----.-------.-------------.-----,-------, £Z/SI/£0 lZ/1£/01 --Q., = -,.Q ~ --0Z/81/90 -QI = .... ~ s.. QI > 0 61/t0/ZO .c ...... Q., QI ~ s.. QI ...... ~ l I/ZZ/60 - "' ~ I "" ~ ~ 91/01/S0 vl/LZ/ZI £1/tl/80 , 0 0 0 0 0 0 0 "": 0 V") 0 V") ~ V") ("') se::t= se::t= V") V") '° '-0 r--r--r--r--r--r--r-- ('y) lll!Od ~upnSB;)W MO{;)S: qld;)Q Water Levels and Data over Time White Mesa Mill -Well TW 4-36 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,615.18 5,616.59 1.41 99.41 5,559.14 09/25/14 57.45 56.04 5,559.77 12/17/14 56.82 55.41 5,559.79 03/26/15 56.80 55.39 5,560.08 06/22/15 56.51 55.10 5,560.18 09/30115 56.41 55.00 5,559.95 12/02/15 56.64 55.23 5,560.53 03/30/16 56.06 54.65 5,560.20 06/30/16 56.39 54.98 5,560.00 09/29/16 56.59 55.18 5,560.04 12/21/16 56.55 55.14 5,560.43 03/30/17 56.16 54.75 5,560.26 06/27/17 56.33 54.92 5,560.12 09/28/17 56.47 55.06 5,560.07 11/29/17 56.52 55.11 5,560.18 03/28/18 56.41 55.00 5,560.11 06/22/18 56.48 55.07 5,560.14 09/25/18 56.45 55.04 5,559.78 12/17/18 56.81 55.40 5,559.43 03/25/19 57.16 55.75 5,559.61 06/24/19 56.98 55.57 5,559.55 08/12/19 57.04 55.63 5,559.28 11/18/19 57.31 55.90 5,559.32 02/10/20 57.27 55.86 5,558.94 05/04/20 57.65 56.24 5,558.64 09/22/20 57.95 56.54 5,558.76 12/30/20 57.83 56.42 5,558.84 03/11/21 57.75 56.34 5,558.44 06/24/21 58.15 56.74 5,558.31 08/13/21 58.28 56.87 5,558.53 12/30/21 58.06 56.65 5,558.09 02/10/22 58.50 57.09 5,558.46 06/28/22 58.13 56.72 5,557.86 08/15/22 58.73 57.32 5,557.72 11/17/22 58.87 57.46 5,558.03 03/24/23 58.56 57.15 5,557.79 06/26/23 58.80 57.39 5,557.47 09/28/23 59.12 57.71 Depth Below Measuring Point (ft.) V, V, V, V, V, V, V, V, V, l,C) l,C) 00 00 --..J --..J 9" °' V, V, 0 V, 0 V, 0 V, 0 V, 0 0 0 0 0 0 0 0 0 L 08/14/13 ·~ 12/27/14 -05/10/16 ~ ~ -,;;;.. I t.H °' -09/22/17 ~ ..... ~ ., 0 ~ "Cl ..... =- -02/04/19 0 < ~ ., ~ ... a ~ --06/18/20 ? O"' -a "Cl - 10/31/21 -03/15/23 .....__ __ ....__ __ .....__ __ ___,__ __ ~--~--~---~--~ 07/27/24 Water Levels and Data over Time White Mesa Mill-Well TW4-37 Total or Measuring Measured Water Point Depth to Total Depth Elevation Land Surface Elevation Length Of Date Of Water to Water Total Depth (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Of Well 5,630.13 5,631.85 1.72 113.72 5,571.99 06/22/15 59.86 58.14 5,570.67 09/30/15 61.18 59.46 5,568.25 12/02/15 63.60 61.88 5,569.80 03/30/16 62.05 60.33 5,569.07 06/30/16 62.78 61.06 5,569.40 09/29/16 62.45 60.73 5,568.35 12/21/16 63.50 61.78 5,524.05 03/30/17 107.80 106.08 5,566.35 06/27/17 65.50 63.78 5,568.47 09/28/17 63.38 61.66 5,567.57 11/30/17 64.28 62.56 5,567.83 03/28/18 64.02 62.30 5,567.87 06/22/18 63.98 62.26 5,567.35 09/24/18 64.50 62.78 5,555.12 12/17/18 76.73 75.01 5,558.24 03/25/19 73.61 71.89 5,560.63 06/24/19 71.22 69.50 5,550.84 08/12/19 81.01 79.29 5,560.14 11/18/19 71.71 69.99 5,558.17 02/10/20 73.68 71.96 5,555.68 05/04/20 76.17 74.45 5,553.36 09/21/20 78.49 76.77 5,563.37 12/28/20 68.48 66.76 5,562.66 03/11/21 69.19 67.47 5,558.68 06/24/21 73.17 71.45 5,559.70 08/13/21 72.15 70.43 5,558.45 12/30/21 73.40 71.68 5,562.73 02/10/22 69.12 67.40 5,559.41 06/28/22 72.44 70.72 5,560.55 08/15/22 71.30 69.58 5,559.90 11/17/22 71.95 70.23 5,559.42 03/24/23 72.43 70.71 5,560.45 06/26/23 71.40 69.68 5,559.04 09/25/23 72.81 71.09 -N 9 0 0 -0 0 0 0 Depth Below Measuring Point (ft.) 00 0 0 0 0\ 0 0 0 +s-o 0 0 N 0 0 0 0 0 0 ----------+------+-------+----t------t-12/27/14 05/10/16 09/22/17 -02/04/19 -06/18/20 -10/31/21 03/15/23 L....-___ __,__ ___ __.__ ___ __._ ___ ___._ ____ .__ __ _____.._ 07 /27 /24 ~ ~ ,I::.. I ~ -...,1 ~ ...... n> "1 0 n> "CS ...... =-0 -< n> "1 ~ .... = n> -? O"' -= "CS -- Water Levels and Data over Time White Mesa Mill -Well TW 4-38 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,628.82 5,629.99 1.17 113.92 5,576.59 12/21/16 53.40 52.23 5,576.62 03/30/17 53.37 52.20 5,576.07 06/27/17 53 .92 52.75 5,577.49 09/28/17 52.50 51.33 5,575.68 11/30/17 54.31 53.14 5,574.69 03/28/18 55.30 54.13 5,574.25 06/22/18 55.74 54.57 5,573.63 09/25/18 56.36 55.19 5,572.31 12/17/18 57.68 56.51 5,572.51 03 /25/19 57.48 56.31 5,572.53 06/24/19 57.46 56.29 5,572.31 08/12/19 57.68 56.51 5,571.90 11/18/19 58.09 56.92 5,571.67 02/10/20 58.32 57.15 5,571.20 05/04/20 58.79 57.62 5,570.69 09/22/20 59.30 58.13 5,570.74 12/30/20 59.25 58.08 5,570.54 03/11/2 l 59.45 58.28 5,570.04 06/24/21 59.95 58.78 5,569.93 08/13/21 60.06 58.89 5,570.39 12/30/21 59.60 58.43 5,569.49 02/10/22 60.50 59.33 5,569.98 06/28/22 60.01 58.84 5,569.51 08/15/22 60.48 59.31 5,569.29 11/17/22 60.70 59.53 5,568.97 03/24/23 61.02 59.85 5,569.09 06/26/23 60.90 59.73 5,568.72 09/28/23 61.27 60.10 vl/LZ/LO ....---~-----,----,-------.-----.--------,.---,---,------.------, £Z/S"l/£0 - ,_ c.. 8 lZ/I £/01 --.c ~ -~ 8 .... ~ $., ~ > 0 0Z/81/90 -= ... c.. ~ ~ $., ~ ... ~ 00 61/vO/ZO -~ I "" ~ ~ l l/ZZ/60 - 91/01/S"0 , 0 0 0 0 0 0 0 0 0 0 0 ~ ~ 0 ~ ~ ~ ~ ~ ~ ~ 0 N M ~ V) I.O r--00 0\ 0 -c---i V) V) V) V) V) V) V) V) I.O I.O I.O ("y) lll!Od ~upnSB:}J,\l M0{:}8 l{ld:}Q Water Levels and Data over Time White Mesa Mill -Well TW 4-39 Total or Measuring Measured Water Land Point Depth to Total Depth Total Elevation Surface Elevation Length Of Date Of Water to Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,628.82 5,629.56 0.74 120.74 5,566.39 12/21/16 63.17 62.43 5,567.57 03/30/17 61.99 61.25 5,567.11 06/27/17 62.45 61.71 5,567.26 09/28/17 62.30 61.56 5,560.52 11/30/17 69.04 68.30 5,565.51 03/28/18 64.05 63.31 5,529.91 06/22/18 99.65 98.91 5,565.04 09/24/18 64.52 63.78 5,557.32 12/17/18 72.24 71.50 5,564.12 03 /25/19 65.44 64.70 5,553.85 06/24/19 75.71 74.97 5,555.03 08/12/19 74.53 73.79 5,549.98 11/18/19 79.58 78.84 5,548.39 02/10/20 81.17 80.43 5,544.51 05/04/20 85.05 84.31 5,552.04 09/21/20 77.52 76.78 5,553.71 12/28/20 75.85 75.11 5,557.31 03 /11/21 72.25 71.51 5,554.26 06/24/21 75.30 74.56 5,555.01 08/13/21 74.55 73.81 5,555.23 12/30/21 74.33 73.59 5,559.05 02/10/22 70.51 69.77 5,558.79 06/28/22 70.77 70.03 5,555.74 08/15/22 73.82 73.08 5,558.96 11/17/22 70.60 69.86 5,554.96 03/24/23 74.60 73.86 5,556.05 06/26/23 73.51 72.77 5,559.02 09/25/23 70.54 69.80 vZ/LZJLO -.--------.---------,------r-------r-------,--------, £Z/SI/£0 - -Q. = IZ:/1 £/01 -,.Q = --~ = .... ~ $.. ~ > 0 0Z/81/90 .c ... Q. ~ ~ $.. ~ ... ~ 0\ 61/vO/Z:O ~ I "1' ~ ~ L I/Z:Z/60 91/01/SO 0 0 0 0 0 0 0 0 C? C? C? C? 0 0 0 0 0 0 0 0 0 N 'tj" \0 00 0 N (·y) lU!Od ~upns-egw MO{gS: qidga -- Water Levels and Data over Time White Mesa Mill -Well TW 4-40 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,595.66 5,597.58 1.92 86 5,531.12 03/28/18 66.46 64.54 5,530.83 06/22/18 66.75 64.83 5,530.34 09/25/18 67.24 65 .32 5,530.06 12/17/18 67.52 65.60 5,529.52 03/25/19 68.06 66.14 5,527.69 06/24/19 69.89 67.97 5,526.98 08/12/19 70.60 68.68 5,526.43 11/18/19 71.15 69.23 5,525.57 02/10/20 72.01 70.09 5,525 .81 05/04/20 71 .77 69.85 5,525.51 09/21/20 72.07 70.15 5,523 .08 12/28/20 74.50 72.58 5,526.17 03/11 /21 71.41 69.49 5,525.45 06/24/21 72.13 70.21 5,525.26 08/13/21 72.32 70.40 5,525.46 12/30/21 72.12 70.20 5,525.47 02/10/22 72.11 70.19 5,524.39 06/28/22 73.19 71.27 5,525.27 08/15/22 72.31 70.39 5,525.24 11/17/22 72.34 70.42 5,525.30 03/24/23 72.28 70.36 5,524.73 06/26/23 72.85 70.93 5,525.48 09/25/23 72 .10 70.18 -...J V, -...J ~ -...J w Depth Below Measuring Point (ft.) -...J N -...J ...... -...J 0 0\ \0 0\ 00 0\ -...J 0\ 0\ i---------1---4------+----+----+-----1---!-----+-------+ 03/01/18 -07/29/18 12/26/18 05/25/19 10/22/19 03/20/20 -08/17/20 01/14/21 06/13/21 ,_ 11/10/21 ·-04/09/22 09/06/22 02/03/23 -07/03/23 11/30/23 .__ _ ___,_ __ ..,___~--~-~--~--~-~-~ 04/28/24 ""'3 ~ ,&;;,.. I ,&;;,.. 0 ~ ...... ~ '"'I t::, ~ "C ...... =-0 -< ~ '"'I ""'3 .... a ~ -? O' -a "C -- Water Levels and Data over Time White Mesa Mill -Well TW4-41 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,613.31 5,614.96 1.65 97.8 5,539.24 03/28/18 75.72 74.07 5,526.18 06/22/18 88.78 87.13 5,513.86 09/24/18 101.10 99.45 5,536.53 12/17/18 78.43 76.78 5,521.88 03/25/19 93.08 91.43 5,527.89 06/24/19 87.07 85.42 5,530.75 08/12/19 84.21 82.56 5,536.69 11/18/19 78.27 76.62 5,538.67 02/10/20 76.29 74.64 5,526.94 05/04/20 88.02 86.37 5,529.30 09/21/20 85.66 84.01 5,528.43 12/28/20 86.53 84.88 5,525.74 03/11/21 89.22 87.57 5,525.25 06/24/21 89.71 88.06 5,526.09 08/13/21 88.87 87.22 5,524.68 12/30/21 90.28 88.63 5,524.95 02/10/22 90.01 88.36 5,524.97 06/28/22 89.99 88.34 5,525.83 08/15/22 89.13 87.48 5,525.79 11/17/22 89.17 87.52 5,524.86 03/24/23 90.10 88.45 5,525.74 06/26/23 89.22 87.57 5,526.03 09/25/23 88.93 87.28 ...... N 0 ...... 0 0 Depth Below Measuring Point (ft.) 00 0 0\ 0 ~ 0 N 0 0 1------+-----+-----+------+----.....__---03/01/18 07/29/18 12/26/18 05/25/19 10/22/19 03/20/20 08/17/20 01/14/21 06/13/21 -11/10/21 04/09/22 09/06/22 ,_ 02/03/23 -07/03/23 11/30/23 ,..__ __ ___,_ ___ ~-------~---~--~ 04/28/24 ~ ~ ~ I ~ ~ ~ ..... ~ """ t::, ~ "Cl ..... =-0 < ~ """ ~ -· a ~ -~ C"' -a "Cl -- Water Levels and Data over Time White Mesa Mill-Well TW4-42 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,592.39 5,594.70 2.31 86.0 5,518.98 03/28/18 75.72 73.41 5,528.28 06/24/19 66.42 64.11 5,527.90 08/12/19 66.80 64.49 5,527.13 11/18/19 67.57 65.26 5,526.83 02/10/20 67.87 65.56 5,526.10 05/04/20 68.60 66.29 5,525.75 09/22/20 68.95 66.64 5,525.59 12/30/20 69.11 66.80 5,525.52 03/11/21 69.18 66.87 5,525.00 06/24/21 69.70 67.39 5,524.77 08/13/21 69.93 67.62 5,525.14 12/30/21 69.56 67.25 5,524.45 02/10/22 70.25 67.94 5,524.93 06/28/22 69.77 67.46 5,523.95 08/15/22 70.75 68.44 5,523.74 11/17/22 70.96 68.65 5,523.71 03/24/23 70.99 68.68 5,523.30 06/26/23 71.40 69.09 5,523.08 09/28/23 71.62 69.31 --.J 00 --.J O'I Depth Below Measuring Point (ft.) --.J ~ --.J N --.J 0 O'I 00 O'I O'I O'I ~ ~----1--------!--------I----+----------03/01/18 07/29/18 12/26/18 05/25/19 10/22/19 03/20/20 08/17/20 -01/14/21 -06/13/21 -11/10/21 04/09/22 09/06/22 02/03/23 07/03/23 11/30/23 ,....__ __ __.__ __ ~--~---~--~--~--~ 04/28/24 ~ ~ ,I:;,.. I ,I:;,.. N ~ ...... ~ .., 0 ~ "'C ...... =-0 < ~ .., ~ ... = ~ -~ C"' -= "'C - Water Levels and Data over Time White Mesa Mill -Well TW 4-43 Total or Measuring Measured Water Land Point Date Of Depth to Total Depth Total Elevation Surface Elevation Length Of Monitoring Water to Water Depth Of (WL) (LSD) (MP) Riser (L) (blw.MP) (blw.LSD) Well 5,595.17 5,596.89 1.72 95.5 5,523.85 12/30/21 73.04 71.32 5,523.48 02/10/22 73.41 71.69 5,523.28 06/28/22 73.61 71.89 5,523.41 08/15/22 73.48 71.76 5,523.25 11/17/22 73.64 71.92 5,523.67 03/24/23 73.22 71.50 5,523.58 06/26/23 73.31 71.59 5,523.45 09/28/23 73.44 71.72 -Q.. e -.c ¢:: ._, QI s ... ~ i.. QI ;.. 0 ..= ... Q.. QI ~ i.. QI ... ; ~ ""' I ""' ~ ~ £Zill/I I ~---..--------~-------~---~--- £Z/OZ/90 - £Z/IZ/IO ZZ/tZ/80 ZZ/LZ/£0 I Z/8Z/Ol - I Z/l £/5;0 IZ/IO/IO +-----i1--------+----+-----+----~-----+---~ ~ r-- ~ ~ r-- V) ~ r-- TabG Chloroform Mass Removed and Volume Pumped in Chloroform Pumping Wells over Time Table G-1 Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped MW-4 MW-26 (formerly TW4-15) Total Total Pumped Total Total Total Total Pumped Total Total Quarter Pumped Cone Total (ug) Cone Total (ug) (gal) (liters) (grams) (pounds) Pumped (gal) (liters) (grams) (pounds) QI 2007 1307110 3370 4947411.4 l.6673E+I0 16673 36 8 930510 1660 3521980 4 5846487381 5846 12,9 02 2007 81230 2000 307455 6 614911100 615 1.4 54400 300 205904_0 61771200 62 0.1 03 2007 100700 2600 381149.5 990988700 991 2.2 72080 1400 272822.8 38195\920 382 0,8 Q4 2007 90830 2300 343791.6 790720565 791 1.7 61750 2000 233723.8 467447500 467 1,0 QI 2008 83950 2400 3177508 762601800 763 1.7 47780 930 180847 3 168187989 168 0.4 Q2 2008 62780 2500 237622.3 594055750 594 1.3 44840 1300 1697194 220635220 221 0.5 Q3 2008 81400 I 800 308099.0 554578200 555 1.2 61280 630 231944 8 146125224 146 OJ 04 2008 91320 1700 3456462 587598540 588 1.3 55700 630 210824.5 132819435 133 OJ Ql 2009 90710 2200 343337.4 755342170 755 1.7 52970 950 200491-5 190466878 190 0.4 Q2 2009 450040 1800 1703401.4 3066122520 3066 6.8 58050 410 219719.3 90084892.5 90 0.2 Q3 2009 90420 2000 342239.7 684479400 684 L5 57610 850 218053-9 185345773 185 0.4 04 2009 322380 1800 1220208J 2196374940 2196 4.8 61960 1100 234518,6 257970460 258 0,6 QI 2010 68125 1600 257853.1 412565000 413 0_9 61320 780 2320962 181035036 181 0.4 02 2010 84005.33 2100 317960.2 667716366 668 1.5 60500 1900 228992.5 435085750 435 1.0 Q3 2010 79859.1 1900 302266_7 574306718 574 1.3 63850 2200 24]672_3 531678950 532 1.2 04 2010 90042,2 1500 340809,7 511214591 511 I. I 60180 970 227781.3 22094786\ 221 0,5 QI 2011 76247.6 1700 288597.2 490615182 491 1.1 55130 450 208667.1 93900172.5 94 0.2 Q220]] 85849.3 1700 324939.6 552397321 552 1.2 55800.6 1800 211205 3 380169488 380 0,8 Q3 201 I 85327.7 1700 322965.3 549041086 549 1.2 65618 720 248364, l 178822174 179 0.4 Q4201 l 89735.0 1600 339647.0 543435160 543 1.2 50191.3 1800 189974 I 341953327 342 0.8 QI 2012 90376 4 1500 342074.7 513112011 513 I.I 31440.1 2400 119000_8 285601868 286 0.6 Q2 2012 90916.5 1400 344118.8 481766269 482 1.1 26701.2 3000 101064.1 303192353 303 0,7 Q3 2012 91607,0 1500 346732,5 520098743 520 I.I 25246 3100 95556,1 296223941 296 0.7 Q4 2012 78840.0 1300 298409.4 387932220 388 0_9 30797 1200 116566_6 139879974 140 0.3 QI 2013 62943.7 1670 238241.9 397863981 398 0.9 22650.7 2120 85732.9 181753747 182 0.4 Q2 2013 71187.3 1490 269443.9 401471456 401 0.9 25343.4 4030 95924_8 386576819 387 0.9 Q3 2013 72898.8 1520 275922.0 419401376 419 0,9 25763 2940 97513,0 286688088 287 0.6 Q4 2013 70340.4 1410 266238.4 375396164 375 0_8 24207.6 1410 91625.8 129192330 129 0.3 QI 2014 69833,8 1390 264320,9 367406097 367 0.8 23263, I 1400 88050,8 123271167 123 0.3 Q2 2014 71934.9 1390 272273.6 378460299 378 0.8 23757,5 1960 89922.1 176247390 176 0.4 Q3 2014 74788.2 1490 283073.3 421779272 422 0.9 24062.4 2120 91076 2 193081510 193 0.4 Q4 2014 63093.0 1440 238807.0 343882087 344 0.8 21875.8 2090 82799.9 173051797 173 0.4 Ql 2015 76454.3 1400 289379 5 405131336 405 0.9 24004.9 1980 90858 5 179899922 180 0.4 Q2 2015 60714.7 1300 229805.1 298746681 299 0_7 27804.6 1980 105240.4 208376014 208 0.5 Q3 2015 89520.8 1290 338836.2 437098734 437 1.0 21042,0 2350 79644 0 187163330 I 87 0.4 Q4 2015 99633.4 1200 377112.4 452534903 453 1.0 19355.6 2680 73260.9 196339335 196 0.4 QI 2016 90882 I 1240 343988.7 426546048 427 09 19150,8 2650 72485 8 192087312 192 0.4 Q2 2016 96540.5 1580 365405.8 577341152 577 1.3 22105.7 2220 83670, l 185747565 186 0.4 Q3 2016 79786.4 1430 301991.5 431847879 432 1.0 17149.5 3190 64910.9 207065635 207 0.5 04 2016 85414,0 1470 323292,0 475239225 475 1.0 18541.6 2510 70180.0 176151690 176 0.4 QI 2017 76642.3 1450 290091 I 420632103 421 0-9 26107.0 1290 98815 0 127471344 127 0.3 022017 72299.8 1430 273654.7 391326282 391 0.9 25921.8 2450 98114.0 240379332 240 0.5 Q3 2017 95349 3 1400 360897.1 505255941 505 1.1 27489.9 1230 104049.3 127980604 128 0.3 Q42017 I 06679.8 1320 403783.0 532993617 533 1.2 26445,8 2570 100097.4 257250197 257 0,6 Table G-1 Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped MW-4 MW-26 (formerly TW4-15) Total Total Pumped Total Total Total Total Pumped Total Total Quarter Pumped Cone Total (ug) Cone Total (ug) (gal) (liters) (grams) (pounds) Pumped (gal) (liters) (grams) (pounds) Ql 2018 105060.4 1320 397653.6 524902770 525 1.2 27004.7 1210 I 02212.8 123677475 124 0.3 Q2 2018 101786.2 1240 385260.8 477723351 478 1.1 26654 7 1870 I 00888 0 188660634 189 04 Q3 2018 95480.5 1300 361393 7 469811800 470 1 0 25536.1 1680 96654.1 162378953 162 0.4 Q4 2018 102884.8 1330 389418.9 517927177 518 1.1 23791.3 1480 90050.1 133274104 133 0.3 01 2019 111746 9 1190 422962.0 503324800 503 11 26798.5 1110 101432 3 112589878 113 0.2 Q2 2019 94540.7 1300 357836.5 465187514 465 LO 24050 2 1280 91030.0 116518409 117 03 Q3 2019 95517.7 1180 361534 5 426610704 427 09 24181.1 1360 91525.5 124474630 124 0.3 Q4 2019 99220.8 1370 375550.9 514504705 515 1.1 22384.8 1390 84726.5 117769791 118 0.3 QI 2020 102597 0 1230 388329 6 477645370 478 1 I 24107 0 1100 91245.0 100369495 100 02 Q2 2020 101850.7 1250 385504.9 481881077 482 11 25418.4 1610 96208.6 154895917 155 0.3 Q3 2020 84607.8 1240 320240 6 397098342 397 09 23663.7 1130 89567.1 101210828 101 02 Q4 2020 91258.6 1050 345413 8 362684491 363 0.8 28934.5 866 109517_] 94841793 4 95 02 Ql 2021 93486.7 1150 353847 3 406924364 407 09 27898 0 3060 105593.9 323117426 323 07 Q2 2021 93252.4 1320 352960 3 465907641 466 1.0 29124.1 998 110234.7 110014249 110 0.2 Q3 2021 89693,5 1140 339489 9 387018483 387 09 27945 6 1580 105774.1 167123072 167 04 Q4 2021 95091.4 1100 359920 9 395913044 396 09 30045 3 826 113721.5 93933926.4 94 0.2 Ql 2022 96291,3 1040 364462.6 379041073 379 0.8 29113 3 1030 110193.8 113499656 113 03 Q2 2022 93554.5 1010 354103.8 357644820 358 0.8 29385.9 611 111225.6 67958860.8 68 0.1 Q3 2022 82718.6 1200 313089.9 375707881 376 0.8 28531.3 612 I 07991.0 66090473.9 66 0.1 04 2022 91487.4 1170 346279 8 405147421 405 09 29411.4 1040 111322.1 115775035 116 0.3 Ql 2023 90044.0 1010 340816.6 344224782 344 0.8 27474.7 571 103991.7 59379283.3 59 0.1 Q2 2023 91310,8 1050 345611 5 362892026 363 0 8 25207.6 2230 95410.8 212766008 213 0.5 03 2023 95944 3 1030 363149 1 374043612 374 0 8 26841 5 2610 101595 1 265163!52 265 06 Totals 7650165.67 116.4 3225250.6 41.0 Table G-1 Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped TW4-19 TW4-20 Total Total Pumped Total Total Total Total Pumped Total Total Quarter Pumped Cone Total (ug) Cone Total (ug) (gal) (liters) (grams) (pounds) Pumped (gal) (liters) (grams) (pounds) Ql 2007 6768986 2660 25620612 0 68150827947 68151 150.2 642290 16240 2431067 7 3 9481E+l0 39481 87.0 Q2 2007 605400 8 2291439,0 18331512 18 0,0 163520 1800 618923.2 1114061760 1114 2.5 Q3 2007 316080 1100 1196362.8 1315999080 1316 2.9 70360 5200 266312.6 1384825520 1385 3.1 Q4 2007 334350 I 100 1265514.8 1392066225 1392 3,1 63630 9000 240839.6 2167555950 2168 4.8 QI 2008 304784 1800 1153607.4 2076493392 2076 4.6 66520 13000 251778,2 3273116600 3273 72 Q2 2008 380310 1000 1439473.4 1439473350 1439 3,2 39360 30000 148977.6 4469328000 4469 9.9 Q3 2008 529020 3600 2002340,7 7208426520 7208 15.9 53260 21000 201589.1 4233371100 4233 9.3 Q42008 589620 4200 2231711.7 9373189140 9373 20.7 50230 1000 190120.6 190120550 190 04 QI 2009 469100 1100 1775543.5 \953097850 1953 4.3 52050 8200 197009.3 1615475850 1615 3.6 02 2009 450040 990 1703401 .4 \686367386 1686 3.7 49270 6800 I 86487.0 126811\260 1268 2.8 Q3 2009 200650 6600 759460 3 5012437650 5012 II I 51030 13000 193148.6 2510931150 2511 5.5 Q42009 454205 4700 1719165.9 8080079848 8080 17 8 208790 15000 790270,2 l.l 854E+I 0 11854 26 1 QI 2010 348550 940 1319261.8 1240106045 1240 2,7 14490 3500 54844.7 191956275 192 0.4 Q2 2010 453340 1800 1715891.9 3088605420 3089 6.8 39014.86 18000 147671.2 2658082412 2658 5,9 Q3 2010 116899.2 2000 442463.5 884926944 885 2,0 39098.3 15000 147987.1 2219805983 2220 4.9 Q42010 767970.5 1200 2906768.3 3488122011 3488 7.7 36752 5 24000 139108.2 3338597100 3339 7.4 Ql 2011 454607.9 3400 1720690,9 5850349065 5850 12.9 37187.5 31000 140754.7 4363395313 4363 9.6 Q220]1 159238,9 4000 602719 2 2410876946 2411 5.3 67907 7 8100 257030.6 2081948220 2082 4.6 Q3 2011 141542.6 970 535738.7 519666578.8 520 I. I 72311.2 6800 273697.9 1861145666 1861 4.1 Q4201 l 147647.2 2200 558844 7 1229458234 1229 2,7 72089 3 7900 272858.0 2\55578204 2156 4.8 QI 2012 148747 650 563007.4 365954806.8 366 0.8 76306 11000 288818.2 31770003\0 3177 7.0 Q2 2012 172082,03 460 6513305 299612022 4 300 0.7 22956.43 36000 86890.1 3\28043152 3128 6,9 Q3 2012 171345 950 648540.8 616113783.8 616 1.4 22025 13000 83364.6 1083740125 1084 24 Q4 2012 156653 1500 592931.6 889397407.5 889 2.0 20114 19000 76131.5 1446498310 1446 3.2 QI 2013 210908 4210 798286 8 3360787344 3361 7.4 18177 18500 68799.9 1272798983 1273 2.8 Q2 2013 226224 2070 856257 8 1772453729 1772 3,9 20252 4 26300 76655 3 2016035284 2016 44 Q3 2013 329460,1 8100 1247006.5 \0100752476 10101 22 3 19731 26800 74681 8 2001473178 2001 4.4 Q4 2013 403974 942 1529041.6 1440357178 1440 3.2 19280.2 15700 72975.6 1145716245 1146 2.5 Ql 2014 304851 586 1153861.0 676162566,5 676 1.5 18781.6 17800 71088 4 1265372737 1265 2,8 Q2 2014 297660,0 810 1126643.1 912580911 913 2.0 18462.4 22100 69880.2 \544352066 1544 3.4 Q3 2014 309742,0 1410 1172373.5 1653046593 1653 3.6 17237,9 12400 65245 5 809043599 809 1.8 Q4 2014 198331 ,0 4310 750682.8 3235443019 3235 7.1 16341.8 23300 61853.7 1441191513 1441 3.2 Ql 2015 60553 0 4660 229193 I \068039869 1068 2.4 15744.7 19900 59593 7 1185914421 1186 26 Q2 2015 75102.8 1570 284264.1 446294633,9 446 1.0 18754.1 17600 70984.3 1249323126 1249 2.8 Q3 2015 116503.9 7860 440967 3 3466002675 3466 7,6 17657 3 17000 66832 9 1136158969 1136 2 5 Q4 2015 I 12762.7 7840 426806.8 3346165465 3346 7.4 15547 4 17000 58846,9 1000397453 1000 22 QI 2016 116597,0 7780 4413196 3433466838 3433 7.6 14353 5 21600 54328 0 1173484746 1173 2.6 Q2 2016 123768.0 12600 468461-9 5902619688 5903 13 0 15818 3 33700 59872.3 20\7695347 2018 4.4 Q3 2016 103609,0 6040 392160.1 2368646793 2369 5,2 12186.6 23600 46126.3 \088580232 1089 24 Q4 2016 l 04919.4 6640 397119.9 2636876329 2637 5.8 12879.6 21300 48749.3 \038359792 1038 2.3 QI 2017 I 10416.7 1240 417927.2 518229739.8 518 I.I 13552.8 23400 51297.3 1200357943 1200 2.6 Q2 2017 109943.0 510 416134.3 2122284 70.1 212 0,5 12475,3 18100 47219,0 854664090 855 1.9 03 2017 112626.4 8840 426290.9 3768411768 3768 8.3 14556.8 27600 55097.5 1520690669 1521 3.4 04 2017 108891.2 129 4121532 53167761.77 53 0.1 14271.0 11600 54015,7 626582526 627 1,4 Table G-1 Quanerly Calculation of Chloroform Removed and Total Volume of Water Pumped TW4-19 TW4-20 Total Total Pumped Total Total Total Total Pumped Total Quarter Pumped Cone Total (ug) Cone Total (ug) Total (gal) (liters) (grams) (pounds) Pumped (gal) (liters) (grams) (pounds) 01 2018 109856.3 2640 415806.1 1097728092 1098 2.4 14258 4 15400 53968.0 831107878 831 I 8 Q2 2018 111271 4 2980 4211622 1255063502 1255 2,8 13367,6 12000 50596.4 607156392 607 1.3 Q3 2018 I 05821.8 1910 400535.5 765022829.8 765 1.7 12443.6 10500 47099.0 494539773 495 l.l Q4 2018 107197-4 5270 405742.2 2138261178 2138 47 12841 I 9500 48603,5 461733494 462 1.0 01 2019 116132.8 2050 439562.6 901103428.4 901 2.0 14623 9 15600 55351.5 863482799 863 I 9 Q2 2019 100704.0 11500 381164.6 4383393360 4383 9.7 13439.1 13700 50867.0 696877811 697 1.5 03 2019 101026 8 6670 382386.4 2550517541 2551 56 I 3787 0 10500 52183.8 547929848 548 12 Q4 2019 98806.8 551 373983.7 206065039.6 206 0.5 8317.69 8790 31482.5 276730794 277 0.6 QI 2020 96857 9 8720 366607,2 3\96814361 3197 7.0 9505 05 14300 35976.6 514465584 514 11 Q2 2020 136619.7 7600 517105.6 3930002290 3930 8.7 100713.8 5800 381201.6 2210969393 2211 4.9 Q3 2020 1545144 1350 584837.0 789529955.4 790 1.7 12476 2 Well collapsed and not sampled Q4 2020 144512.0 660 546977.9 36\0054272 361 0.8 Well plugged and abandoned QI 2021 133462 3 6660 505154 8 336433\005 3364 7.4 Well plugged and abandoned Q2 2021 151242.8 775 572454 0 44365 I 848.5 444 I 0 Well plugged and abandoned Q3 2021 157632 4 4450 596638 6 2655041921 2655 59 Well plugged and abandoned Q4 2021 124359.9 6950 470702.2 3271380439 3271 7.2 Well plu_gged and abandoned Qi 2022 112209.2 654 424711.8 277761531.6 278 0.6 Well plugged and abandoned 02 2022 123246.5 2540 466488.0 1184879526 I 185 2.6 Well plugged and abandoned 03 2022 137486.6 4750 520386.7 2471836850 2472 5.4 Well p]ug_ged and abandoned Q4 2022 137474 5 7380 520341.0 3840\16451 3840 8.5 Well plugged and abandoned QI 2023 132291.8 230 500724.3 115166591.7 115 0.3 Well plugged and abandoned 02 2023 117218.0 4850 443670,3 2151800865 2152 4,7 Well plugged and abandoned 03 2023 104098 2 198 394011 6 78014291 54 78 02 Well plugged and abandoned Totals 20992054.98 485.9 2582397.89 296.2 Table G-1 Quarterly Calculation ofChlorofonn Removed and Total Volume of Water Pumped TW4-4 TW4-22 Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) Pumped Cone Pumped Total (ug) (gal) (liters) (grams) (pounds) (gal) (liters) (grams) (pounds) Ql 2007 NA NA NA NA NA NA NA NA NA NA NA NA 02 2007 NA NA NA NA NA NA NA NA NA NA NA NA 03 2007 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA Ql 2008 NA NA NA NA NA NA NA NA NA NA NA NA 02 2008 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA 02 2009 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA Ql 2010 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2010 84513.9 2000 319885,1 639770223 640 1.4 NA NA NA NA NA NA Q3 2010 76916.8 2100 291130.1 611373184.8 61 I I 3 NA NA NA NA NA NA Q4 2010 86872, I 1700 328810,9 558978527 5 559 l.2 NA NA NA NA NA NA Ql 2011 73360.0 1800 277667,6 499801680 500 I.I NA NA NA NA NA NA 022011 80334.6 1700 304066.5 516912983.7 517 l l NA NA NA NA NA NA 03 2011 97535.0 1500 369170.0 553754962 5 554 1.2 NA NA NA NA NA NA Q42011 109043.5 1500 412729,6 619094471.3 619 l 4 NA NA NA NA NA NA QI 2012 101616 8 1200 384619,6 46 I 543505,6 462 1.0 NA NA NA NA NA NA Q2 2012 87759.1 1500 3321682 498252290.3 498 I.I NA NA NA NA NA NA Q3 2012 80006.0 1600 302822 7 484516336 485 1.1 NA NA NA NA NA NA Q4 2012 71596 1400 270990 9 379387204 379 0.8 NA NA NA NA NA NA QI 2013 58716.8 1460 222243 I 324474908.5 324 0,7 16677.4 10600 63124.0 669113965.4 669.1 1.5 02 2013 65603.4 1330 248308 9 330250795 8 330 0.7 25523.2 12500 96605.3 1207566400,0 1207.6 2.7 Q3 2013 63515.4 1380 240405 8 331759988.8 332 0.7 25592,9 9640 96869.1 933818379.5 933.8 2.1 04 2013 60233.6 1360 227984 2 310058479 4 310 0.7 24952.2 13300 94444.1 1256106224. l 1256.1 2.8 QI 2014 58992,9 1260 223288 I 281343039.4 281 0.6 24532.0 12100 92853 6 1123528802.0 1123.5 2.5 Q2 2014 60235.3 1220 227990.6 278148544.8 278 0.6 24193.9 12400 91573 9 I 1355 I 6502.6 1135.5 2.5 Q3 2014 69229.4 1320 262033 3 345883928 3 346 08 24610,9 12400 93152 3 1155087980.6 I 155.1 2.5 Q42014 64422.6 I 130 243839 5 275538681 3 276 06 23956.9 12400 90676.9 I I 24393 I 44.6 1124.4 2.5 QI 2015 36941.3 1350 139822.8 I 88760807. 7 189 0.4 22046,9 12700 83447 5 1059783459 6 1059 8 2.3 Q2 2015 68162,8 1280 257996.2 330235133.4 330 0.7 23 I 91.6 8050 87780.2 706630658,3 706.6 1.6 03 2015 64333.0 1220 243500.4 297070494. l 297 0.7 24619.9 7810 93186 3 7277851 70.9 727.8 I 6 04 2015 59235.l I 190 224204.9 266803775 7 267 0.6 23657,6 7530 89544.0 674266440.5 674.3 l.5 QI 2016 57274.0 1190 216782.1 257970687 .1 258 0.6 24517.8 6070 92799 9 563295229.1 563 3 l.2 02 2016 61378 0 1780 232315,7 413521999.4 414 0.9 26506,3 8570 100326.3 859796780.9 859 8 1.9 Q3 2016 50104.2 1380 189644.4 261709267.9 262 0.6 22144.1 5840 83815 4 489482044.0 489 5 1.1 042016 31656,0 1430 119818.0 I 7 I 339682.8 171 0.4 23646,8 3370 89503 I 301625575,] 301.6 0.7 QI 2017 23526.8 1290 89048.9 I 14873130 I 15 0.3 24066.2 5320 91090 6 48460 I 8 I 6.4 484 6 1.1 Q22017 23244.9 1290 87981.9 113496711 I 13 0.3 23685.0 3670 89647.7 329007 I 50.8 329.0 0.7 Q3 2017 23937.3 1290 90602.7 I 16877457.8 117 0.3 24583.2 5150 93047.4 479194171.8 479 2 1.1 Q42017 22900,6 1120 86678 8 97080223 52 97 0,2 23779.6 4770 90005.8 429327599 2 429 3 09 Table G-1 Quartc.r!y Calculation of Chloroform Removed and Tota! Volume of Water Pumped TW4-4 TW4-22 Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters) 012018 23103 4 1160 87446.4 101437788 101 0.2 23982 8 4530 90774.9 411210287.9 411 2 0.9 02 2018 I 8137.0 1050 68648.5 72080972.25 72 0.2 23256.6 3010 88026.2 264958955.3 265 0 0.6 Q3 2018 15366.0 1030 58160,3 59905119,3 60 0.1 21248.7 3600 80426.3 289534786.2 289 5 0.6 Q4 2018 15420.2 1140 58365.5 66536620.98 67 0.1 24171.0 2680 91487.2 245185789.8 245.2 0.5 QI 2019 16655.0 1050 63039,2 66191133.75 66 0.1 26149.9 4310 98977.4 4265924 71.2 426.6 0.9 Q2 2019 14311.9 1070 54170.5 57962479.41 58 0.1 23073.1 4690 87331.7 409585595.6 409.6 0.9 Q3 2019 14520.0 989 54958.2 54353659.8 54 0.1 24711.7 3460 93533 8 323626894.4 323.6 0.7 Q4 2019 14399.8 1140 54503.2 62133697 .02 62 0.1 24052.5 3820 91038.7 347767881.8 347 8 0.8 QI 2020 14439.2 1100 54652 4 60117609.2 60 0 I 24746.1 3910 93664 0 366226195.0 366 2 0.8 Q2 2020 15347.0 1140 58088.4 66220770.3 66 0.1 25295 3 2530 95742.7 242229057.6 242.2 0.5 Q3 2020 14389 9 1110 54465.8 60457006 37 60 0.1 23050.6 3760 87246 5 328046919 0 328 0 0.7 Q4 2020 15061 5 979 57007.8 55810614,17 56 0.1 22866.1 3640 86548.2 315035406.1 315.0 0.7 QI 2021 13740.8 1130 52008.9 58770088.64 59 0.1 22605.6 5100 85562.2 436367199 6 436.4 1 0 Q2 2021 13425.7 1240 50816.3 63012180.38 63 0,1 22893.3 4520 86651.1 391663155.1 391 7 0.9 Q3 2021 1202LO 1100 45499.5 50049433.5 50 0.1 22272.5 3510 84301.4 295897957,9 295.9 07 04 2021 11401.1 950 43153.2 40995505.33 41 0.1 22667,3 3330 85795.7 285699782.6 285.7 06 QI 2022 10434J 1010 39493.1 39887999.19 40 0.1 22083.6 3320 83586.4 277506934.3 277.5 0.6 Q2 2022 11463.2 1110 43388.2 4816091532 48 0.1 22489,0 2600 85120.9 221314249.0 221 3 0.5 Q3 2022 7928 5 1040 30009.4 31209747.4 31 0.1 21940.2 3190 83043.7 264909265.8 264.9 0.6 04 2022 8777.0 1030 33220 9 34217573 35 34 0.1 22398.4 2350 84777.9 199228168.4 199.2 0.4 QI 2023 8236.0 945 31173.3 29458730.7 29 0.1 21783.0 1900 82448.7 156652444.5 156.7 0.3 Q2 2023 7407.0 1980 28035.5 55510280.1 56 0.1 22375.4 3330 84690.9 282020660.4 282.0 0.6 03 2023 8580 2 1020 32476 1 33125578 14 33 0 I 23422 7 1890 88654 9 167557797 9 167 6 04 Totals 2277762.7 26.9 1010019.8 50.0 Table G-1 Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped TW4-24 TW4-25 Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters) Ql 2007 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA Ql 2008 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA Ql 2009 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA Ql 2010 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2010 NA NA NA NA NA NA NA NA NA NA NA NA QI 2011 NA NA NA NA NA NA NA NA NA NA NA NA Q22011 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2011 NA NA NA NA NA NA NA NA NA NA NA NA Q42011 NA NA NA NA NA NA NA NA NA NA NA NA Ql 2012 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA Q42012 NA NA NA NA NA NA NA NA NA NA NA NA QI 2013 144842,6 5.7 548229.2 3124906,7 3.1 0.0 99369,9 00 376115.1 0.0 0.0 0.0 Q2 2013 187509.3 17.4 709722.7 12349175.0 12.3 0.0 147310.4 0.0 557569 9 0,0 00 00 Q3 2013 267703.5 21.8 1013257.7 22089018.9 22.1 0,1 145840,9 0.0 552007.8 0,0 0.0 0.0 Q42013 260555.3 32.5 98620L8 32051558.8 32.1 0.1 126576.5 0.0 479092.1 0.0 0.0 0.0 Ql 2014 229063,9 78.5 867006 9 68060038 6 68 ,1 0,2 129979.2 00 491971.3 0.0 0.0 0.0 Q2 2014 216984, 1 62,7 821284.8 51494558.1 51.5 0.1 124829.8 0.0 472480.8 0.0 0.0 0.0 Q3 2014 213652 5 76.3 808674.7 61701880.6 61.7 0.1 119663.9 00 452927,9 0.0 0.0 0.0 Q4 2014 178468 7 25,8 675504.0 17428004.0 17.4 0.04 I 07416.1 0.0 406569.9 0.0 0.0 00 Ql 2015 92449 3 49 2 349920.6 17216093 5 17.2 0 04 71452 4 00 270447.3 0.0 0.0 0.0 Q2 2015 62664 2 4,28 237184.0 1015147.5 1.0 0.002 91985.3 0.0 348164.4 0.0 0.0 00 Q3 2015 66313,2 46 9 250995.5 11771687 2 11.8 0.026 124137.1 00 469858,9 0.0 0.0 0.0 Q4 2015 107799 I 25.3 408019.6 I 0322895.7 10,3 0.023 116420.1 0.0 440650.1 0.0 0.0 0.0 QI 2016 100063 2 22.8 378739.2 8635254.0 8,6 0,019 115483.2 00 437103 .9 00 0.0 00 Q2 2016 65233,6 69.6 246909.2 17184878,6 17.2 0.Q38 125606.0 0,0 475418.7 0.0 0,0 0,0 Q3 2016 51765,8 17.8 195933.6 3487617.2 3.5 0,008 104983,6 0.0 397362.9 00 0.0 0.0 Q42016 99522,5 20.8 376692.7 7835207.4 7.8 0.017 98681.2 0.0 373508.3 00 0.0 0.0 QI 2017 99117.4 18.3 375159.4 6865416.3 6.9 0.015 161.2 1.15 610.1 701.7 o.o 0.0 022017 52808.7 17.2 199880.9 3437952.0 3.4 0.008 101617,2 0,0 384621.1 0.0 0.0 0,0 Q3 2017 55574.6 17.8 210349.9 3744227.5 3 7 0.008 124138.4 0.0 469863.8 0.0 0.0 0.0 Q4 2017 106021 4 16 0 401291.0 6420656.0 6.4 0.014 116731,9 0.0 441830.2 0.0 0.0 0.0 Table G-1 Quane.rly Calculation of Chloroform Removed and Total Volume of Water Pumped TW4-24 TW4-25 Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters) 01 2018 96900.2 24,9 366767 3 9132504,7 9.1 0,020 116991,7 0,0 442813.6 0.0 0.0 0.0 Q2 2018 53117.9 49.2 201051.3 9891721 .6 9.9 0.022 117758,3 0,0 445715.2 0,0 0.0 0,0 Q3 2018 53142,5 35,0 201144.4 7040052,7 7.0 0,016 111657.5 0.0 422623.6 0.0 0,0 00 Q4 2018 101606.4 21.0 384580.3 8076 I 85.5 8.1 0.018 114458.2 0.0 433224 3 0.0 0.0 0.0 Ql 2019 97701 .0 28.1 369798.3 I 0391331.8 10.4 0.023 90789 5 00 343638.3 0,0 0,0 00 Q2 2019 53197.3 28,8 201351.8 5798931.3 5.8 0.013 88302.0 0.0 334223 1 0.0 0.0 0.0 Q3 2019 54445.7 31.1 206077.0 6408993,9 64 0.014 87609 5 00 331602.0 0,0 0,0 00 Q4 2019 102211.02 43.3 386868.7 16751415.2 16.8 0.037 85928.53 0.0 325239.5 0.0 0.0 0.0 Ql 2020 86344,38 61.7 326813,5 20164391 6 20.2 0,044 85049.47 00 3219122 0,0 00 00 Q2 2020 57634.7 49.4 218147,3 10776478,6 10.8 0,024 90767.9 0.0 343556,6 0,0 00 0.0 Q3 2020 53316,1 63.8 201801 4 I 2874931.8 12.9 0,028 83956 3 00 317774.6 0.0 0.0 00 Q4 2020 103987.2 72.6 393591.6 28574746.7 28.6 0.063 86254.4 0.0 326472.7 0.0 0.0 0.0 Ql 2021 81891 2 96,2 309958.3 29817985.4 29.8 0,066 80272,2 0.0 303830.4 00 00 0,0 Q2 2021 54377,9 41.2 205820.4 8479798.5 8.5 0.019 82692.8 0.0 312992 2 0.0 0.0 0.0 Q3 2021 53333.1 103.0 201865.8 20792175.7 20.8 0.046 82802.3 0.0 313406.7 0.0 0.0 0.0 04 2021 96534.8 112.0 365384.2 40923032 4 40.9 0.090 8936 1.5 00 338233.3 0.0 0.0 0.0 Ql 2022 73545,0 114.0 278367.8 31733932 1 31.7 0.070 92972.] 0.0 351899.4 0.0 0.0 0.0 Q2 2022 50341.7 124.0 190543.3 23627373.5 23.6 0.052 101724.9 00 385028.7 0.0 0.0 0.0 Q3 2022 58456.5 88.9 221257.7 19669806.3 19.7 0.043 98357.6 00 372283 7 00 0.0 00 Q4 2022 100289,8 79 5 379596.9 30177956 0 30.2 0,067 95056.0 00 359787.1 0.0 0.0 0.0 Ql 2023 75424.5 95.5 285481.6 27263491.0 27.3 0.060 87269.8 0.0 330316.2 00 0.0 0.0 Q2 2023 52081.4 58.5 197128.0 11531987.1 11.5 0,025 94118.3 00 356237 .8 0.0 0.0 0.0 03 2023 57213 1 65 7 216551 7 14227449 0 14 2 0 031 117564.3 00 444981 0 00 00 00 Totals 4325206.3 1.7 4374099.5 0.0 Table G-1 Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped TW4-0l TW4-02 Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters) QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA Q42009 NA NA NA NA NA NA NA NA NA NA NA NA QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA Q420]0 NA NA NA NA NA NA NA NA NA NA NA NA QI 2011 NA NA NA NA NA NA NA NA NA NA NA NA Q22011 NA NA NA NA NA NA NA NA NA NA NA NA Q3 201 I NA NA NA NA NA NA NA NA NA NA NA NA Q42011 NA NA NA NA NA NA NA NA NA NA NA NA QI 2012 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA QI 2013 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2013 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2013 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2013 NA NA NA NA NA NA NA NA NA NA NA NA QI 2014 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2014 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2014 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2014 NA NA NA NA NA NA NA NA NA NA NA NA QI 2015 24569 2 1130 92994.4 105083696.9 105 I 0.23 24156 7 1840 91433.1 ]68236921 5 168,2 0.37 Q2 2015 23989.9 1260 90801.8 114410232.1 114.4 0.25 22029.9 1650 83383.2 137582233.0 137.6 0.30 Q3 2015 23652 0 1060 89522,8 94894189 2 94 9 0.21 21586 9 1310 81706.4 107035405 6 107.0 0.24 Q4 2015 20764.3 1040 78592.9 81736590.5 81.7 0.18 21769.8 2070 82398 7 170565294,5 170,6 0 38 QI 2016 19255 6 974 72882.4 70987502 4 71 0 0.16 20944.6 1970 79275.3 156172362. 7 156.2 0.34 Q2 2016 19588 2 1140 74141.3 84521124 2 84.5 0.19 20624 0 2070 78061.8 161588008.8 I 61.6 0.36 Q3 2016 15613.5 1160 59097.1 68552633.1 68.6 0.15 17487.4 1780 66189.8 117817860.0 117.8 0.26 Q4 2016 16756.8 1330 63424,5 84354569.0 84.4 0,19 I 9740.6 1600 74718 2 119549073.6 119 5 0 26 QI 2017 16931.8 519 64086.9 3326 I 081.9 33.3 0.07 19869.7 1570 75206.8 118074698.8 118.1 0.26 Q2 2017 18200 2 977 68887.8 67303338 6 67.3 0.15 18716 7 1940 70842.7 137434856 4 137.4 0.30 Q3 2017 I 7413.6 958 65910.5 63142236 0 63 I 0.14 19338.8 1310 73197 4 95888539.0 95 .9 0 21 Q4 2017 14089 8 556 53329.9 29651420 5 29.7 0.07 17327 6 1610 65585.0 105591795 3 105.6 0.23 Table G-1 Quortcrly Calculation of Chloroform Removed and Total Volume of Water Pumped TW4-0l TW4-02 Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters) 01 2018 12505_7 70 4 47334.1 3332318 8 33 0.01 16232.3 764 61439.3 46939591.2 46.9 010 02 2018 10814.8 942 40934.0 38559845.0 38.6 0.09 16051.4 949 60754 5 57656067 0 57 7 0,13 Q3 2018 9727.3 1010 36817.8 37186008.8 37.2 0.08 14927.2 980 56499.5 55369463.0 55 4 0.12 Q4 2018 9836.7 752 37231.9 27998395.9 28.0 0.06 15464.1 822 58531 6 48112990.4 48.1 0.11 QI 2019 10603 6 87 2 40134.6 3499739 4 3.50 0,01 16169,9 1040 0 61203.1 63651 I 94.4 63.65 0.14 Q2 2019 9393,9 1040.0 35555.9 36978148.0 36.98 0.08 13893.7 1360.0 52587.7 715192 I 0.1 71.52 0.16 03 2019 9734.1 894 36843,6 32938150,2 32,94 om 14106,9 797 53394 6 42555509 4 42.56 0,09 Q4 2019 9184.3 1070 34762.6 37195955.8 37.20 0.08 14220.9 934 53826.1 50273583.5 50 27 0.11 QI 2020 8796,7 1190 33295 5 39621656,3 39,62 0,09 13162,1 1880 49818.5 93658871.2 93 66 0.21 Q2 2020 9600.2 499 36336.8 18132041.7 18.13 0.04 14155.6 1070 53578.9 57329472 2 57.33 0.13 03 2020 9487.3 1060 35909.4 38063996.3 38.06 0.08 14009.5 1260 53026.0 66812706.5 66.81 0.15 04 2020 9318.7 924 35271 3 32590662,3 32,59 O.Q7 14582.9 1130 55196.3 62371792.4 62,37 0,14 QI 2021 9066.4 948 34316.3 32531875.2 32.53 O.Q7 13189.6 939 49922.6 46877355 2 46.88 0.10 Q2 2021 8764.1 957 33172.1 31745717.4 31.75 O.Q7 11975.9 1160 45328.8 52581386.5 52.58 0.12 03 2021 8677.2 821 32843-2 26964268.8 26 .96 0_06 12694,5 1150 48048 7 55255984_9 55.26 0.12 Q4 2021 8873.4 957 33585,8 32141628,8 32,14 O.Q7 12351.3 852 46749.7 39830719.3 39.83 0.09 QI 2022 8251.8 946 31233.1 29546477.6 29.55 O.Q7 11380,6 1020 43075.6 43937082.4 43.94 0.10 Q2 2022 7616.0 914 28826 6 26347475.8 26.35 0.06 11518, 1 892 43596.0 38887639.6 38.89 0,09 Q3 2022 8512.1 954 32218.3 30736256.8 30.74 O.Q7 10953.7 832 41459.8 34494515.7 34.49 0.08 04 2022 8450,8 1010 3 I 986 3 32306140,8 32.31 O.Q7 12148,6 1030 45982 5 473619245 47.36 0.10 Ql 2023 7985.1 928 30223.6 28047504,0 28 .05 0.06 I 0275.4 772 38892.4 30024924-3 30.02 0,07 Q2 2023 7825.6 830 29619 9 24584513,7 24.58 0.05 11931.8 788 45161.9 35587548 0 35.59 0,08 Q3 2023 8419 4 891 31867 4 28393879 2 28 39 0 06 11513 8 867 43579 7 37783628 5 37 78 0 08 Totals 442270.1 3.5 550502.5 6,1 Table G-1 Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped TW4-ll TW4-21 Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters) QI 2007 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA 03 2007 NA NA NA NA NA NA NA NA NA NA NA NA Q42007 NA NA NA NA NA NA NA NA NA NA NA NA QI 2008 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA 03 2009 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA QI 2010 NA NA NA NA NA NA NA NA NA NA NA NA 02 2010 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2010 NA NA NA NA NA NA NA NA NA NA NA NA QI 2011 NA NA NA NA NA NA NA NA NA NA NA NA 022011 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2011 NA NA NA NA NA NA NA NA NA NA NA NA Q42011 NA NA NA NA NA NA NA NA NA NA NA NA Qi 2012 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA QI 2013 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2013 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2013 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2013 NA NA NA NA NA NA NA NA NA NA NA NA QI 2014 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2014 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2014 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2014 NA NA NA NA NA NA NA NA NA NA NA NA QI 2015 9898 7 2450 37466 6 91793119,8 91 8 0 20 NA NA NA NA NA NA Q2 2015 5243.3 2710 19845.9 53782363,3 53,8 0,12 30743,7 366 116364,9 42589555 0 42.6 0 09 Q3 2015 3584.4 1120 13567,0 15194988,5 15 2 0 03 125285.4 281 474205 2 133251672 2 133.3 029 04 2015 4110.3 2730 15557..5 42471935,4 42 5 0.09 134774.9 339 510123.0 172931695.8 172.9 0.38 QI 2016 3676.2 2660 13914.4 37012349.2 37 0 0,08 125513.3 390 475067.8 185276457 8 185.3 0.41 Q2 2016 3760.4 3340 14233.1 47538600,8 47 5 0,10 132248,7 545 500561.3 272805924 6 272.8 0.60 03 2016 2953.8 3200 11180.1 35776425,6 35.8 0.08 110381.9 456 417795.5 190514744.1 190.5 0.42 Q4 2016 3050.2 3180 11545.0 36713122.3 36,7 0.08 13031 L3 434 493228 3 214061069 .4 2141 0.47 QI 2017 2984.2 3310 11295.2 37387102,1 37.4 0.08 54333.5 598 205652.3 I 22980073.9 123.0 0.27 02 2017 2845.9 3370 10771 7 36300735.2 36.3 0.08 60969.7 224 230770.3 51692550.4 51 7 0.11 Q3 2017 2830.0 3290 10711.6 35240999.5 35.2 0.08 120116.2 537 454639.8 244141581.7 244.1 0.54 Q4 2017 2612 7 2880 9889.1 28480520 2 28,5 0,06 126492 5 466 478774 1 223108736 4 223.1 0.49 Table G-1 Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped TW4-ll TW4-21 Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters) 01 2018 2571.0 3090 9731.2 30069516.2 30.1 0.07 117832.0 421 445994.1 187763524.5 187.8 0.41 Q2 2018 2513 5 2800 9513.6 26638073.0 26 6 0,06 I I 6681.0 532 441637,6 234951195,2 235.0 0.52 Q3 2018 2170.2 3050 8214.2 25053331.4 25.1 0.06 110001.4 476 416355.3 198185122.3 198.2 0 44 Q4 2018 2379.5 2930 9006.4 26388774.0 26.4 0.06 121686.3 585 460582.8 2694409 I 4.0 269.4 0 59 01 2019 2342.4 2820 8866.0 25002074.9 25.00 0 06 123264 323 466554.6 150697141.8 150.70 0.3 Q2 2019 2195.1 2970 8308.5 24676106.9 24.68 0_05 106893.6 734 404592.3 296970730.6 297.0 0.7 Q3 2019 2046.0 2790 7744.1 21606066.9 21.61 0 05 108132.9 596 409283.0 243932683 8 243,9 0.5 Q4 2019 1983.9 3250 7509.1 24404449.9 24.40 0.05 116167.55 794 439694 2 3491171763 349.1 0,8 QI 2020 1947.4 2990 7370.9 22039017.9 22.04 0 05 106622.01 844 403564.3 340608275 8 340.6 0.8 Q2 2020 2003.9 2810 7584.8 21313179.8 21 .31 0.05 I 10999.13 767 420131.7 32224 IO I 9_3 322.2 0.7 Q3 2020 1784.1 3070 6752.8 20731152,8 20,73 0 05 99515, 11 920 376664,7 346531516 0 346.5 0,8 Q4 2020 1394.6 2670 5278.6 14093757.9 14.09 0.03 107061.16 948 405226.5 384154713.1 384.2 0,8 QI 2021 2195 I 2750 8308.5 22848455.3 22.85 0.05 97211.49 400 367945 5 147178195 9 147.2 0.3 Q2 2021 1694.5 3320 6413.7 21293425,9 21.29 0.05 97157.60 1130 367741.5 415547913 I 415.5 0.9 Q3 2021 1560.8 2600 5907.6 I 5359832.8 15 36 0.03 93390.40 669 353482.7 236479902 2 236.5 0,5 Q4 2021 1485.5 2850 5622.6 16024459.9 16.02 0.04 102535 00 649 388095.0 251873638 8 251.9 0,6 QI 2022 1497.2 2780 5666.9 15753987.6 15.75 0.03 91105.40 469 344833.9 161727117.4 161.7 0.4 Q2 2022 1473 I 2550 5575. 7 14217992,9 14.22 0.03 91682_50 657 347018,3 227990998.5 228,0 0.5 Q3 2022 1304.3 3020 4936.9 14909290,6 14.91 0.03 87160.0 1070 329900.7 352993763.5 353.0 0.8 Q4 2022 1442 4 2900 5459.5 15832503,6 15.83 0.03 94463.6 482 357544.6 172336503 2 172.3 0.4 QI 2023 1326.4 2430 5020,3 12199446.4 12.20 0,03 83943.5 526 317726.1 I 67123933. 7 167.1 0.4 Q2 2023 1159 5 2510 4388.6 11015275,8 11 .02 0.02 83501.7 768 316053.9 242729392 6 242.7 05 Q3 2023 1277 7 2630 4835.9 12718430 8 12.72 0 03 89276 6 49 7 337911 8 16794215 4 16 8 0 04 Totals 89298.1 2.1 3507455.1 16.7 Table G-1 Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped TW4-37 TW4-39 Total Total Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (gal) (liters) (gal) (liters) Ql 2007 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA 03 2007 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA Ql 2008 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA 03 2008 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA QI 2009 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA Ql 2010 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA 04 2010 NA NA NA NA NA NA NA NA NA NA NA NA Ql 2011 NA NA NA NA NA NA NA NA NA NA NA NA Q22011 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2011 NA NA NA NA NA NA NA NA NA NA NA NA Q42011 NA NA NA NA NA NA NA NA NA NA NA NA Ql 2012 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA Ql 2013 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2013 NA NA NA NA NA NA NA NA NA NA NA NA Q3 2013 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2013 NA NA NA NA NA NA NA NA NA NA NA NA Ql 2014 NA NA NA NA NA NA NA NA NA NA NA NA Q2 2014 NA NA NA NA NA NA NA NA NA NA NA NA 03 2014 NA NA NA NA NA NA NA NA NA NA NA NA Q4 2014 NA NA NA NA NA NA NA NA NA NA NA NA QI 2015 NA NA NA NA NA NA NA NA NA NA NA NA 02 2015 29206.0 30200 110544.7 3338450242.0 3338.5 7.4 NA NA NA NA NA NA Q3 2015 118063 9 19100 446871 9 8535252554 7 8535 3 18 8 NA NA NA NA NA NA Q4 2015 111737 5 19500 422926.4 8247065531.3 8247.1 18.2 NA NA NA NA NA NA Ql 2016 111591 0 17500 422371 .9 7391508862.5 7391 5 16 3 NA NA NA NA NA NA Q2 2016 119241.2 16200 451327.9 7311512660.4 7311 5 16 l NA NA NA NA NA NA Q3 2016 98377.6 15900 372359 592051 l 534.4 5920.5 13.1 NA NA NA NA NA NA Q4 2016 101949.1 16400 385877 6328388433 4 6328.4 14.0 3598.3 2800 13620 38134783.4 38.1 0.1 Ql 2017 97071.7 18000 367416 6613494921 .0 6613.5 14.6 103117.8 6460 390301 2521343639 6 2521 .3 5 56 02 2017 93191 ,3 15800 352729 5573119313 9 5573 1 12.3 41313.0 5560 156370 869415559.8 869.4 1.92 Q3 2017 81749.3 15000 309421 4641316507.5 4641 3 10.2 34546.3 10000 130758 1307577455 0 1307,6 2.9 Q42017 87529 6 15500 331300 5135142808.0 5135.1 11.3 68180.2 552 258062 142450255,5 142.5 0.3 Table G-1 Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped TW4-37 TW4-39 Total Total Total Total Total Total Quarter Pumped Cone Pumped Total (ug) Pumped Cone Pumped Total (ug) Total Total (gal) (liters) (grams) (pounds) (gal) (liters) (grams) (pounds) 01 2018 84769.3 12900 320852 4138988226.5 4139.0 9.1 59262.2 2870 224307 643762315.5 643.8 1.4 02 2018 83653 1 14400 316627 4559428562.4 4559 4 10 1 34259 8 7160 129673 928461135,9 928.5 2,0 Q3 2018 77457.8 14100 293178 4133806599.3 4133.8 9.1 33473.4 8180 126697 I 036379979.4 1036 4 2.3 Q4 2018 76271.4 15200 288687 4388046184.8 4388.0 9.7 37003.6 6520 140059 913182241.5 913 2 2.0 Ql 2019 77591 13300 293683 4 3905989871. 7 3906.0 8.6 49117 885 185907.5 164528107.9 164.5 0.4 Q2 2019 64950, 1 16200 245836.1 3982545281. 7 3982 5 8 8 34285.7 8640 129771.4 1121224675.7 1121.2 2.5 Q3 2019 67572 0 11900 255760 0 3043544238 0 3043.5 67 36976.2 4240 139954.9 593408848.1 593.4 1.3 Q4 2019 66732.4 13100 252582.1 3308825955.4 3308.8 7.3 51808.6 1650 196095.6 323557659,2 323.6 0.7 QI 2020 65554 2 12000 248122 6 2977471764 0 2977 5 6,6 43169,3 812 163395,8 132677390.0 132.7 0.3 Q2 2020 65163 8 11700 246645.0 2885746301.1 2885.7 6.4 37352.7 5870 141380.0 829900421.0 829 9 L8 03 2020 56659 3 13800 214455.5 2959485216 9 2959 5 6,5 35628.2 5960 134852.7 803722312,5 803.7 1.8 Q4 2020 61323.9 10300 232111.0 2390742903.5 2390.7 5.3 46794.2 648 177116.0 1147711985 114.8 OJ Ql 2021 59907 4 9380 226749 5 2126910394 4 2126 9 4,7 38932.4 2970 147359.1 437656628 0 437.7 1.0 Q2 2021 58564.2 13000 221665.5 2881651461.0 2881.7 6.4 32865.2 2490 124394.8 309743007.2 309.7 0.7 Q3 2021 49987.5 10200 189202 7 1929867412 5 1929 9 4.3 31436.6 858 118987.5 102091301 6 102 1 0.2 Q4 2021 46649.1 14800 176566.8 2613189283 8 2613 2 5,8 42730.6 776 161735.3 125506609.1 125,5 0.3 Ql 2022 42923.5 13700 162465.4 2225776630 8 2225.8 4.9 35550 2 724 134557 5 97419635.1 97.4 0.2 Q2 2022 41998.3 46800 158963.6 7439494865.4 7439.5 16.4 31354.2 982 118675.6 116539485.4 116.5 0.3 Q3 2022 39640.3 11600 150038.5 1740447011.8 1740.4 3.8 31305.9 843 118492.8 99889457,0 99,9 0,2 04 2022 43251.9 9640 163708.4 1578149376 1 1578 1 3.5 39072.6 1720 147889.8 254370440.5 254.4 0.6 Ql 2023 44536.9 8010 168572 2 1350263053 7 1350 3 3.0 35659.0 1850 134969.3 249693232.8 249.7 0.6 Q2 2023 42641.9 8160 161399.6 131 7020666.6 1317 0 2,9 28777 7 3330 108923,6 362715569.7 362 7 0.8 03 2023 46548 5 9620 176186 1 1694910017 5 1694 9 3,7 34299 4 3440 129823 2 446591907 8 446 6 1 0 Totals 2414056.4 305,6 1131870 2 33.3 Table G-1 Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped TW4-40 TW4-41 Total Total Total Total Total Total Total Total Total Total Volume Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (pounds) Pumped (gal) (liters) (gal) (liters) (gallons) Ql 2007 NA NA NA NA NA NA NA NA NA NA NA NA 286.9 9648896.0 Q2 2007 NA NA NA NA NA NA NA NA NA NA NA NA 4.0 904550.0 Q3 2007 NA NA NA NA NA NA NA NA NA NA NA NA 9.0 559220.0 Q4 2007 NA NA NA NA NA NA NA NA NA NA NA NA 10.6 550560.0 Ql 2008 NA NA NA NA NA NA NA NA NA NA NA NA 13 8 503034.0 Q2 2008 NA NA NA NA NA NA NA NA NA NA NA NA 14.8 527290.0 Q3 2008 NA NA NA NA NA NA NA NA NA NA NA NA 26 8 724960.0 Q4 2008 NA NA NA NA NA NA NA NA NA NA NA NA 22.7 786870.0 Ql 2009 NA NA NA NA NA NA NA NA NA NA NA NA 10 0 664830.0 Q2 2009 NA NA NA NA NA NA NA NA NA NA NA NA 13.5 1007400.0 Q3 2009 NA NA NA NA NA NA NA NA NA NA NA NA 18 5 399710.0 Q4 2009 NA NA NA NA NA NA NA NA NA NA NA NA 49.4 1047335.0 Ql 2010 NA NA NA NA NA NA NA NA NA NA NA NA 4,5 492485.0 Q2 2010 NA NA NA NA NA NA NA NA NA NA NA NA 16.5 721374.1 Q3 2010 NA NA NA NA NA NA NA NA NA NA NA NA 10.6 376623 4 Q4 2010 NA NA NA NA NA NA NA NA NA NA NA NA 17.9 1041817.3 Ql 2011 NA NA NA NA NA NA NA NA NA NA NA NA 24.9 696533.0 Q2 2011 NA NA NA NA NA NA NA NA NA NA NA NA 13.1 449131.1 Q3 2011 NA NA NA NA NA NA NA NA NA NA NA NA 8_1 462334.5 Q42011 NA NA NA NA NA NA NA NA NA NA NA NA 10.8 468706.3 Ql 2012 NA NA NA NA NA NA NA NA NA NA NA NA 10.6 448486.3 Q2 2012 NA NA NA NA NA NA NA NA NA NA NA NA 10.4 400415.2 Q3 2012 NA NA NA NA NA NA NA NA NA NA NA NA 6.6 390229.0 Q4 2012 NA NA NA NA NA NA NA NA NA NA NA NA 7 1 358000 0 Ql 2013 NA NA NA NA NA NA NA NA NA NA NA NA 13.7 634286.1 Q2 2013 NA NA NA NA NA NA NA NA NA NA NA NA 13 5 768953 4 Q3 2013 NA NA NA NA NA NA NA NA NA NA NA NA 31.1 950505.6 Q4 2013 NA NA NA NA NA NA NA NA NA NA NA NA 10.3 990119 8 Ql 2014 NA NA NA NA NA NA NA NA NA NA NA NA 8.6 859297 5 Q2 2014 NA NA NA NA NA NA NA NA NA NA NA NA 9.9 838057.9 Q3 2014 NA NA NA NA NA NA NA NA NA NA NA NA 10.2 852987 2 Q42014 NA NA NA NA NA NA NA NA NA NA NA NA 14.6 673905.9 Ql 2015 NA NA NA NA NA NA NA NA NA NA NA NA 99 458271.4 Q2 2015 NA NA NA NA NA NA NA NA NA NA NA NA 15 3 539592 9 Q3 2015 NA NA NA NA NA NA NA NA NA NA NA NA 33.4 816299.8 Q42015 NA NA NA NA NA NA NA NA NA NA NA NA 32.3 847567.8 Ql 2016 NA NA NA NA NA NA NA NA NA NA NA NA 30.6 819302.3 Q2 2016 NA NA NA NA NA NA NA NA NA NA NA NA 39.4 832418.9 Q3 2016 NA NA NA NA NA NA NA NA NA NA NA NA 24.7 686543.4 Q42016 NA NA NA NA NA NA NA NA NA NA NA NA 25.6 750667.4 Ql 2017 NA NA NA NA NA NA NA NA NA NA NA NA 27.2 667899.1 Q2 2017 NA NA NA NA NA NA NA NA NA NA NA NA 19.6 657232.5 Q3 2017 NA NA NA NA NA NA NA NA NA NA NA NA 28 5 754250 1 Q4 2017 NA NA NA NA NA NA NA NA NA NA NA NA 16.9 841953 7 Table G-1 Quarterly Calculation of Chloroform Removed and Total Volume of Water Pumped TW4-40 TW4-41 Total Total Total Total Total Total Total Total Total Total Volume Quarter Pumped Cone Pumped Total (ug) (grams) (pounds) Pumped Cone Pumped Total (ug) (grams) (pounds) (pounds) Pumped (gal) (liters) (gal) (liters) (gallons) 01 2018 NA NA NA NA NA NA NA NA NA NA NA NA 18,0 810330.4 Q2 2018 NA NA NA NA NA NA 73711.2 1400 278997 390595648.8 390.6 0.9 20.1 803034.5 03 2018 NA NA NA NA NA NA 44981.6 1390 170255 236654734.4 236 7 0.5 17.6 733435.6 Q4 2018 NA NA NA NA NA NA 35431 .6 1320 134108 177023110.1 177.0 0.4 20.8 800443-6 QI 2019 NA NA NA NA NA NA 31904 1220 120755 I 147321253.7 147 3 03 16 2 811589.4 Q2 2019 81762.7 263 309471.8 81391088.5 81.4 0.18 25146.5 1320 95179.5 125636943.3 125.6 0.3 26.2 750139.6 Q3 2019 116414.2 380 440627.7 167438543.9 167.4 0.37 24045.6 1190 91012 6 I 08304989.2 108 3 0.2 18.3 794827.4 Q4 2019 108281 .89 314 409847 0 128691943.4 128.7 0 28 21186.4 1410 80190,5 113068638,8 113.1 0,2 13.0 844887.9 Ql 2020 102021.51 364 386151.4 140559115.2 140.6 0.31 17289.9 1200 65442.3 78530725.8 78.5 0,2 18,9 802209.2 Q2 2020 100757,13 367 381365.7 139961225,5 140 0 0.31 17294,9 1220 65461 ,1 79862567.4 79.9 0,2 25.2 910974.8 Q3 2020 86264.50 333 326511.1 108728207 .1 108.7 0.24 13411.4 1110 50762.3 56346111 .4 56.3 0.1 13.4 766734.5 04 2020 77535.9 264 293473 5 77477002 7 77.5 0.17 17765.7 1020 67243.3 68588115.2 68.6 0,2 9,6 828651.4 QI 2021 72543.4 436 274576.7 119715421 ,8 119.7 0.26 13407.5 1170 50747.3 59374310.5 59.4 0.1 16.8 7598 I 0.1 02 2021 66866.4 343 253089 3 86809638.1 86.8 0.19 13168.7 1130 49843.5 56323188.3 56.3 0.1 11.8 738065 6 Q3 2021 58841.0 301 222713 2 67036668,7 67.0 0 15 13821 0 1100 52312.5 57543733.5 57.5 0.1 13.4 716109.4 Q4 2021 57357.9 286 217099 7 62090500.3 62.1 0.14 12449.1 1030 47119.8 48533438.8 48.5 0.1 16.1 753893.2 Ql 2022 53009 2 238 200639.8 47752277.6 47.8 0.11 12247.8 1030 46357 9 47748660 7 47,7 0 1 84 692614 3 Q2 2022 52135.2 323 197331 7 63738149 4 63,7 0,14 11013.9 1010 41687.6 42104487.6 42.1 0.1 21.8 680997.0 Q3 2022 45416.2 302 171900.4 51913918.6 51.9 0.11 11108.0 1060 42043.9 44566527.2 44.6 0.1 12.3 670819.9 Q42022 48263 2 298 182676.1 54437488 6 54.4 0.12 11722 6 1050 44369,9 46588384 I 46.6 0 1 15 0 743710 2 QI 2023 45062.1 259 170560.2 44175082.0 44.2 0.10 11577 2 985 438 I 9.8 43162518.3 43.2 0.1 59 682889.4 Q2 2023 45516 3 220 172279 0 37901381.4 37.9 0.08 10239.7 1040 38757 2 40307515.7 40 3 0.1 11.4 641312,6 Q3 2023 43550.1 282 164837 2 46484080 9 46 5 0 10 10780 6 1050 40804 6 42844879 0 42 8 0 1 72 679330.4 Totals 1261598.8 3.4 453704.4 4.7 1393.3 55026114.3 Table G-2 Chloroform Mass Removal Per Well Per Quarter MW-4 MW-26 TW4-19 TW4-20 TW4-4 TW4-22 TW4-24 TW4-25 TW4-0l TW4-02 TW4-11 TW4-21 TW4-37 TW4-39 TW4-40 TW4-41 Quarter Quarter• (lbs.) (lbs.) (lbs.) (lbs.)•• (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) Totals (lbs.) QI 2007 36.8 12.9 150.2 87.0 NA NA NA NA NA NA NA NA NA NA NA NA 286.9 02 2007 1.4 0.1 0.0 2.5 NA NA NA NA NA NA NA NA NA NA NA NA 4.0 03 2007 2.2 0.8 2.9 3.1 NA NA NA NA NA NA NA NA NA NA NA NA 9.0 04 2007 1,7 1.0 3.1 4,8 NA NA NA NA NA NA NA NA NA NA NA NA 10 6 Ql 2008 1,7 0.4 4.6 7.2 NA NA NA NA NA NA NA NA NA NA NA NA 13.8 02 2008 1.3 0,5 3.2 9.9 NA NA NA NA NA NA NA NA NA NA NA NA 14.8 Q3 2008 1.2 03 15.9 9.3 NA NA NA NA NA NA NA NA NA NA NA NA 26.8 Q4 2008 1.3 0.3 20.7 0.4 NA NA NA NA NA NA NA NA NA NA NA NA 22.7 Ql 2009 1.7 0.4 4-3 3.6 NA NA NA NA NA NA NA NA NA NA NA NA 10.0 Q2 2009 6,8 0,2 37 2 8 NA NA NA NA NA NA NA NA NA NA NA NA 13.5 Q3 2009 1.5 OA 11.1 5.5 NA NA NA NA NA NA NA NA NA NA NA NA 18.5 04 2009 4.8 0.6 17.8 26.1 NA NA NA NA NA NA NA NA NA NA NA NA 49.4 Ql 2010 0,9 0.4 2.7 0.4 NA NA NA NA NA NA NA NA NA NA NA NA 4.5 02 2010 1.5 1.0 6.8 5.9 1.4 NA NA NA NA NA NA NA NA NA NA NA 16.5 Q3 2010 1.3 1.2 2,0 4,9 1.3 NA NA NA NA NA NA NA NA NA NA NA 10.6 Q4 2010 1.1 0.5 7.7 74 1.2 NA NA NA NA NA NA NA NA NA NA NA 17.9 Ql 2011 1.1 0.2 12,9 9.6 1.1 NA NA NA NA NA NA NA NA NA NA NA 24.9 02 2011 1.2 0.8 5,3 4.6 I.I NA NA NA NA NA NA NA NA NA NA NA 13.1 Q3 2011 1.2 04 11 4,1 I 2 NA NA NA NA NA NA NA NA NA NA NA 8.1 042011 12 0.8 2.7 4.8 1.4 NA NA NA NA NA NA NA NA NA NA NA 10.8 Ql 2012 1.l 0.6 0.8 7.0 1.0 NA NA NA NA NA NA NA NA NA NA NA 10.6 02 2012 1.1 07 0.7 6.9 1.1 NA NA NA NA NA NA NA NA NA NA NA 10.4 03 2012 1.1 0.7 1.4 2.4 1.1 NA NA NA NA NA NA NA NA NA NA NA 6.6 04 2012 0,9 0.3 2.0 3,2 0.8 NA NA NA NA NA NA NA NA NA NA NA 7.2 Ql 2013 0.9 0_4 7.4 2.8 0.7 1.5 0,0 00 NA NA NA NA NA NA NA NA 13.7 02 2013 0,9 0,9 3,9 4.4 0,7 2.7 0,0 0,0 NA NA NA NA NA NA NA NA 13 5 Q3 2013 0.9 0.6 22.3 4.4 0.7 2.1 0,1 0.0 NA NA NA NA NA NA NA NA 31.1 04 2013 0.8 0.3 3.2 2.5 0.7 2.8 0.1 00 NA NA NA NA NA NA NA NA 10.3 Ql 2014 0,8 0.3 1.5 2 8 0,6 2.5 0,2 00 NA NA NA NA NA NA NA NA 8.6 02 2014 0.8 0.4 2.0 3.4 0.6 2.5 0.1 0.0 NA NA NA NA NA NA NA NA 9.9 Q3 2014 0.9 04 3.6 1.8 0.8 2.5 0.1 o.o NA NA NA NA NA NA NA NA 10.2 04 2014 0,8 0.4 7.1 32 0,6 25 0 04 0.0 NA NA NA NA NA NA NA NA 14 6 Ql 2015 0.9 0.4 2.4 2.6 0.4 2.3 0.04 0.0 0.23 0,37 0,20 NA NA NA NA NA 9.9 02 2015 0.7 0.5 1.0 2.8 0,7 1.6 0,00 0.0 0,25 0 30 0,12 0.09 74 NA NA NA 15.3 Q3 2015 1.0 0.4 7.6 2.5 0.7 1.6 0,03 00 0 21 0,24 O,Q3 0 29 18 8 NA NA NA 334 Q4 2015 1.0 0.4 7.4 2.2 0.6 1.5 0.02 0.0 0.18 0.38 0.09 0,38 18.2 NA NA NA 32.3 01 2016 0.9 0.4 7.6 2.6 0.6 1.2 0.02 0.0 0.16 0 34 0.08 OAl 16.3 NA NA NA 30 6 02 2016 1.3 0.4 13,0 4.4 09 1 9 0.04 00 0,19 0 36 0 10 0.60 16,1 NA NA NA 39.4 Q3 2016 1.0 0.5 5.2 2.4 0.6 1.1 0.01 0.0 0.15 0.26 0.08 0.42 13.1 NA NA NA 24.7 04 2016 1.0 0.4 5.8 2.3 0.4 0.7 0.017 0.0 0,19 0,26 0.08 0 47 14.0 0.1 NA NA 25.6 01 2017 0.9 0,3 11 2.6 0.3 1.1 0.015 0.0 0.07 026 0,08 0.27 14.6 5.6 NA NA 27,2 Q2 2017 0.9 0.5 0.5 1.9 0.3 0.7 0.008 0.0 0,15 0.30 0,08 0 11 12 3 1 9 NA NA 19.6 03 2017 1.1 0,3 8,3 3.4 0,3 I. 1 0,008 0.0 0,14 0,21 0,08 0.54 10.2 2.9 NA NA 28.5 Q4 2017 1.2 0.6 0 1 1.4 0.2 0.9 0.014 0.0 O.D7 0.23 0,06 0.49 11.3 0.3 NA NA 16.9 Ql 2018 1.2 0.3 2.4 1.8 0.2 0,9 0,020 0,0 0,01 0,10 0,07 0 41 9.1 1 4 NA NA 18.0 02 2018 1.1 0.4 2.8 1.3 0.2 0,6 0.022 0.0 0.09 0,13 0,06 0.52 10.1 2.0 NA 0.9 20.1 03 2018 1.0 0.4 1.7 1.1 0.1 0.6 0.016 0.0 0 08 0,12 0,06 0 44 9.1 2,3 NA 0,5 17 6 Q4 2018 11 OJ 47 1.0 0 1 05 0 018 0.0 0.06 0,11 0,06 0 59 9.7 2.0 NA 0.4 20 8 01 2019 1.1 0.2 2.0 1.9 0.1 0.9 0.023 0.0 0.01 0,14 0.06 0.33 8.6 0.4 NA 0,3 16 2 02 2019 1.0 0.3 9.7 1.5 0,1 0,9 0,013 0,0 0.08 0.16 0.05 0.65 8.8 2_5 0.18 03 26.1 Q3 2019 09 0.3 5.6 L2 0.1 07 0.014 0.0 0 07 0.09 0,05 05 6.7 1 3 0.37 02 18.3 04 2019 1.1 0.3 0.5 0.6 0.1 0.8 0.037 0,0 0.08 0.11 0.05 0.8 7.3 0.7 0.28 0.2 13.0 Ql 2020 1.1 02 7.0 1.1 OJ 0.8 0.044 0.0 0 09 0.21 0.05 0.8 6.6 0.3 0 31 02 18.9 Table G-2 Chloroform Mass Removal Per Well Per Quarter MW-4 MW-26 TW4-19 TW4-20 TW4-4 TW4-22 TW4-24 TW4-25 TW4-0l TW4-02 TW4-ll TW4-21 TW4-37 TW4-39 TW4-40 TW4-41 Quarter Quarter• (lbs.) (lbs.) (lbs.) (lbs.)•• (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) Totals (lbs.) Q2 2020 1.1 0.3 8.7 4.9 0 I 0.5 0.024 0.0 0.04 0.13 0.05 0.7 6.4 1.8 0,31 02 25 2 Q3 2020 0,9 0.2 1.7 0.0 0.1 0.7 0.028 0.0 0.08 0.15 0.05 0.8 6.5 1.8 0.24 0.1 13.4 04 2020 0.8 0.2 0.8 o.o 0.1 0.7 0.063 0.0 0.07 0.14 0.03 0.8 5.3 03 0,17 02 9.6 Ql 2021 0,9 0.7 7.4 0.0 0.1 1.0 0.066 0.0 0.07 0.10 0,05 0.3 4 7 1 0 0,26 0.1 16.8 Q2 2021 1.0 0.2 1.0 0.0 0.1 0.9 0.019 0.0 0.07 0.12 0.05 0.9 6.4 0.7 0.19 0.1 11.8 Q3 2021 0,9 0.4 5.9 o.o 0.1 0,7 0.046 0.0 0.06 0.12 0.03 0.5 4.3 0.2 0.15 0.1 13.4 Q4 2021 0,9 0.2 7.2 0.0 0.1 0.6 0.090 00 0.07 0.09 0.04 0,6 5.8 03 0.14 0 1 16 1 OJ 2022 0.8 0.3 0.6 0.0 0.1 0.6 0.070 0.0 0.07 0.10 0.03 0.4 4.9 0.2 0.11 0.1 8.4 Q2 2022 0.8 0.1 2.6 0.0 0.1 05 0.052 0.0 0.06 0.09 0.03 0.5 16.4 0_3 0.14 0.1 21.8 Q3 2022 0,8 0.1 5.4 o.o 0 I 06 0 043 00 0.07 0.08 0.03 0,8 3.8 02 0.11 0 I 12.3 04 2022 0.9 0.3 8.5 0.0 0.1 0.4 0.067 0.0 0.07 0.10 0,03 0.4 3.5 0.6 0,12 0.1 15.0 QI 2023 0,8 0.1 0.3 0.0 0.1 0..3 0.060 0.0 0.06 0,07 0.03 0.4 3.0 0.6 0,10 0.1 5.9 Q2 2023 0.8 0.5 4.7 0.0 0 I 06 0.025 00 0 05 0.08 0,02 0,5 2,9 08 0.08 0 1 11.4 Q3 2023 0.8 06 0.2 0.0 0 l 04 0 031 00 0.06 0,08 0.03 0,04 3 7 1.0 010 0,1 7 2 Well Totals ll6.4 41-0 485.9 296.2 26.9 50.0 1.7 0.0 3.5 6.1 2.1 16.7 305.6 33.3 3.4 4.7 1393.3 • QI 2007 represents the cumulmive 1mal prior to and includinc QI 2007. ** TW4-20 collapsed in August 2020 and was abandoned on October l, 2020 Table G-3 Well Pumping Rates and Volumes Volume of Water Pumped Pumping Well Name During the Quarter (gals) Average Pump Rate (mm) MW-4 95944.3 4.0 MW-26 26841.5 16.0 TW4-19 104098.2 15.7 TW4-4 8580.2 16.0 TWN-2 17749.7 16.0 TW4-22 23422.7 16.0 TW4-24 57213.1 16.0 TW4-25 117564.3 14.3 TW4-01 8419.4 12.8 TW4-02 11513.8 16.0 TW4-11 1277.7 15.6 TW4-21 89276.6 16.1 TW4-37 46548.5 18.0 TW4-39 34299.4 18.0 TW4-40 43550.1 17.9 TW4-41 10780.6 5.9 D ...... N 0 Chloroform Removed (Pounds) 0 ---l ....,. --" N N w w ..., (1) 01 0 01 0 01 0 01 'O 0 0 0 0 0 0 0 0 ..., 6 6 6 6 6 6 6 (1) 0 "' (1) ::i 81 ~88~ --"' g. (1) Q3 2007 (") Q4 2007 C a Q1 2008 C Q2 2008 ~ Q3 2008 :;;:· Q4 2008 (1) -Q1 2009 0 Q2 2009 -a Q3 2009 'O Q4 2009 ..., 5· Q1 2010 ..., -Q2 2010 0 § Q3 2010 0.. Q4 2010 a· Q1 2011 (") Q2 2011 = C Q3 2011 0.. ~ a· Q4 2011 (IQ Q1 2012 ll) D 8~ ~8g = en ...... en N 0 0 Q4 2012 -0 () :--.J Q1 2013 8~ ~8n = :::::; 0 -, Q4 2013 0 Q1 2014 -0 Q2 2014 -, Q3 2014 3 Q4 2014 ;;a Q1 2015 CD Q2 2015 3 Q3 2015 0 < Q4 2015 CD Q1 2016 a. Q2 2016 C" Q3 2016 '< 81 ~8~~ = 0 C Q2 2017 ll) Q3 2017 ;:::i. CD Q4 2017 -, Q12018 _ -::::::: Q2 2018 C" en Q3 2018 Q4 2018 - Q12019 - - Q2 2019 Q3 2019 Q4 2019 = Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Q1 2023 Q2 2023 Q3 2023 ,0 ...... N 0 0 --.J ..., (I) "Ci ..., 01 2007 (I) "' (I) 02 2007 ::l -03 2007 "' g. 04 2007 (I) 01 2008 (") ~ 02 2008 3 ~ 03 2008 ~ 04 2008 :;;:· 01 2009 (I) 02 2009 -0 03 2009 -po -04 2009 "Ci ..., 01 2010 5· ..., 02 2010 -03 2010 0 § 04 2010 0.. 01 2011 s· 02 2011 (") ~ 03 2011 0.. 04 2011 s· (Jq 01 2012 ,0 02 2012 ...... 03 2012 N 0 04 2012 0 :--l 01 2013 02 2013 03 2013 04 2013 01 2014 02 2014 03 2014 04 2014 01 2015 02 2015 03 2015 04 2015 01 2016 02 2016 03 2016 04 2016 01 2017 02 2017 03 2017 04 2017 01 2018 02 2018 03 2018 04 2018 01 2019 02 2019 03 2019 04 2019 01 2020 02 2020 03 2020 04 2020 01 2021 02 2021 03 2021 04 2021 01 2022 02 2022 03 2022 04 2022 01 2023 02 2023 03 2023 Chloroform Removed (Pounds) ~t ► ◄ ◄ ◄ ............ ~ :> ► ~ ► '► ◄ ► ◄ ► • ► ► ► ► ► ◄ ' ◄ ' . ' ► ◄ •► I◄ ' ► ◄ ► ' ► ◄ ► ◄ ► ◄ ► ◄ ► ► '► ◄ ► ◄ ► ► ' ◄ ► ' ► ► '► ◄ • ► '► ◄ ◄ ► 0 0 CJ1 0 ...... 0 ...... CJ1 N 0 ' N CJ1 w 0 w CJ1 - .i:,.. 0 s: ~ 0 ~ s: Q) en en 0 -() ::::r 0 ..., 0 o' ..., 3 ;:a CD 3 0 < CD a. O" '< 0 C Q) ffi" ..., ,......_ O" en - 0 0 0 + Q1 2015 Q2 2015 Q3 2015 Q4 2015 Q1 2016 Q2 2016 Q3 2016 Q4 2016 Q1 2017 Q2 2017 Q3 2017 Q4 2017 Q1 2018 Q2 2018 03 2018 Q4 2018 Q1 2019 Q2 2019 Q3 2019 Q4 2019 Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Q1 2023 Q2 2023 Q3 2023 Chloroform Removed (Pounds) 9 9 9 0 01 ........ 0 ........ 01 0 N 0 0 ~ 01 0 w 0 i I 0 ...... :s:: Ill U) U) 0 -+, 0 :::T o a 0 -, 3 ::a CD 3 0 < CD a. C" '< 0 C Ill ;:i CD -, -::::::: C" U) - 0 0 0 + Q1 2015 Q2 2015 Q3 2015 Q4 2015 Q1 2016 Q2 2016 Q3 2016 Q4 2016 Q1 2017 Q2 2017 Q3 2017 Q4 2017 Q1 2018 Q2 2018 Q3 2018 Q4 2018 Q1 2019 Q2 2019 Q3 2019 Q4 2019 Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Q1 2023 Q2 2023 Q3 2023 Chl~form ~moved ~ounds)~ 0 01 ....,. 0 ....,. 01 N 0 0 i--J 01 ~ w 0 0 w 01 0 :i:,. 0 i I 0 I\.) s:: Q) CJ) CJ) 0 -(') ::::r 0 a o' -, 3 ;o CD 3 0 < CD c.. C" '< 0 C Q) ;::::i CD -, -C" CJ) - Chloroform Removed (Pounds) 0 0 0 0 0 0 N :i:,. 0) 00 Q2 2010 Q3 2010 Q4 2010 Q1 2011 Q2 2011 Q3 2011 Q4 2011 Q1 2012 Q2 2012 Q3 2012 Q4 2012 Q1 2013 Q2 2013 Q3 2013 04 2013 Q1 2014 Q2 2014 Q3 2014 Q4 2014 Q1 2015 Q2 2015 Q3 2015 Q4 2015 Q1 2016 Q2 2016 Q3 2016 Q4 2016 Q1 2017 Q2 2017 Q3 2017 Q4 2017 Q1 2018 Q2 2018 Q3 2018 Q4 2018 Q1 2019 Q2 2019 Q3 2019 Q4 2019 Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Q1 2023 Q2 2023 Q3 2023 ....,. ....,. ....,. ....,. 0 j\J :i:,. 0) i I 0 .i::,.. s:: Q) (f) (f) 0 -(') ::::,- 0 --, 0 o' --, 3 :::a (D 3 0 < (D c.. C"' '< 0 C Q) ffi" --, --0"' (f) - 0 0 0 + 01 2015 02 2015 03 2015 04 2015 01 2016 02 2016 03 2016 04 2016 01 2017 02 2017 03 2017 04 2017 01 2018 02 2018 03 2018 04 2018 01 2019 02 2019 03 2019 04 2019 01 2020 02 2020 03 2020 04 2020 01 2021 02 2021 03 2021 04 2021 01 2022 02 2022 03 2022 04 2022 01 2023 02 2023 03 2023 Chloroform Removed (Pounds) 0 0 0 . . . 0 01 ...... 0 ...... 01 0 N 0 9 N 01 i I ...... ...... s:::: w CJ> CJ> 2. () ::::r 0 -, 0 o' -, 3 ;:;a CD 3 0 < CD a. O" '< 0 C w ffi" -, -O" CJ> 0 0 Chloroform Removed (Pounds) N ~ O> 00 o o o o ...... 0 0 ...... N 0 ...... ~ 0 8~ ~88t -l I i I I I ; • I §3 2007 - ol~BBi= 03 2008 : 81 ~88~ -02 2009 03 2089 -8t ~818 = 02 2010 8~ ~8rn - §} isu = 0~1 ~8~~ ~. 32012 " 4 2012 -1 2013 - 02 2013 = 03 2013 04 2013 = 01 2014 . 8~ ~81l -o4 2014 -01 2015 02 2015 8l ~81~ -~ ~8l~ - 03 2016 04 2016 01 2017 02 2017 8i ~8H =· 01 2018 02 2018 a1~2rn 82 ~srn -O3 2019 04 2019 -01 2020 -Q2 2020 03 2020 • 04 2020 01 2021 02 2021 03 2021 81~8~ 02 2022 03 2022 04 2022 01 2023 02 2023 03 2023 ,.L...:~ _ __J.__ __ _L_ __ __,__ __ __._ __ __._ __ ___._ __ ____, s: ~ "' 0) s: n> (J) (J) 0 -() ::::r 0 a 0 -, 3 ::::0 CD 3 0 < CD a. C" '< 0 C n> :::+ CD -, -C" (J) ......., 9 0 Chloroform Removed (Pounds) I\.) 0 0 .i:,. 0 0 O> 9 0 CX) 0 0 ....>. 0 0 0 ....>. I\.) 0 0 ....>. .i:,. 0 0 ....>. 0) 0 0 81 ~gg~ 1 I I I i i I I • I 03 2007 04 2007 01 2008 02 2008 03 2008 042008 01 2009 02 2009 03 2009 04 2009 01 2010 02 2010 03 2010 04 2010 Q1 2011 02 2011 -2i ~2~1 Q1 2012 02 2012 03 2012 Q4 2012 01 2013 02 2013 Q3 2013 Q4 2013 01 2014 02 2014 03 2014 04 2014 21 ~grn - 03 2015 Q4 2015 01 2016 Q2 2016 Q3 2016 04 2016 01 2017 02 2017 Q3 2017 04 2017 01 2018 - 02 2018 03 2018 04 2018 01 2019 02 2019 03 2019 04 2019 Q1 2020 Q2 2020 Q3 2020 04 2020 Q1 2021 02 2021 03 2021 04 2021 01 2022 02 2022 Q3 2022 04 2022 01 2023 02 2023 03 2023 -=-----....__ __ ..__ __ .__ _ ___J'--------------'-------'------'------' i I _.. c.o s:: Q) CJ> CJ> 0 -(') :T 0 -, 0 o' -, 3 :::a CD 3 0 < CD 0.. O" '< 0 C Q) ffi" -, ,.-... c= CJ> :§: (1) n 0 DJ "C V, (1) c.. 0 w N 0 N 0 0 0 Q1 2007 Q2 2007 Q3 2007 Q4 2007 Q1 2008 Q2 2008 Q3 2008 Q4 2008 Q1 2009 Q2 2009 Q3 2009 Q4 2009 Q1 2010 Q2 2010 Q3 2010 Q4 2010 Q1 2011 Q2 2011 Q3 2011 Q4 2011 Q1 2012 Q2 2012 Q3 2012 Q4 2012 Q1 2013 Q2 2013 Q3 2013 Q4 2013 Q1 2014 Q2 2014 Q3 2014 Q4 2014 Q1 2015 Q2 2015 Q3 2015 Q4 2015 Q1 2016 Q2 2016 Q3 2016 Q4 2016 Q1 2017 Q2 2017 Q3 2017 Q4 2017 Q1 2018 Q2 2018 Q3 2018 Q4 2018 Q1 2019 Q2 2019 Q3 2019 Q4 2019 Q1 2020 Q2 2020 Chloroform Removed (Pounds) _. N w .J:>. 0, 0 0 0 0 0 0 0 0 0 0 _. 0) --..J 00 co 0 0 0 0 0 0 0 0 0 0 0 i I N 0 s:: Dl rJ) rJ) 0 -(') :::::r 0 --, 0 o' --, 3 :;;a CD 3 0 < CD a. C"' '< 0 C Dl ;:::i. CD --, --::::: C"' rJ) - 0 0 0 + Q2 2015 Q3 2015 Q4 2015 Q1 2016 Q2 2016 Q3 2016 Q4 2016 Q1 2017 Q2 2017 Q3 2017 Q4 2017 Q1 2018 Q2 2018 Q3 2018 Q4 2018 Q1 2019 Q2 2019 Q3 2019 Q4 2019 Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Q1 2023 Q2 2023 Q3 2023 Chloroform Removed (Pounds) 0 0 0 0 0 0 :...... N w :i:,.. 01 m 0 0 0 0 0 0 0 -.J 0 0 CX) 0 0 co 0 0 0 i I N ...... s: Q) C/) C/) 0 -(') :::; 0 -, 0 o' -, 3 :::a CD 3 0 < CD a. CT '< 0 C Q) ::+ CD -, --0" C/) ---- 0 Chloroform Removed (Pounds) 9 ~ ~ 0 0, 0 0, +-Q1 2013 Q2 2013 Q3 2013 Q4 2013 Q1 2014 Q2 2014 Q3 2014 Q4 2014 Q1 2015 Q2 2015 Q3 2015 Q4 2015 Q1 2016 Q2 2016 Q3 2016 Q4 2016 Q1 2017 Q2 2017 Q3 2017 Q4 2017 Q1 2018 Q2 2018 Q3 2018 Q4 2018 Q1 2019 Q2 2019 Q3 2019 Q4 2019 Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Q1 2023 Q2 2023 Q3 2023 N 0 N 0, (,.) 0 i I N N s:: ll) C/) C/) 0 -() ::r 0 ~ -, 3 ::0 Cl) 3 0 < Cl) 0.. C"' '< 0 C ll) ::I-C!) -, -o= C/) 0 0 + 01 2013 02 2013 03 2013 04 2013 01 2014 02 2014 03 2014 04 2014 01 2015 02 2015 03 2015 04 2015 01 2016 02 2016 03 2016 04 2016 01 2017 02 2017 03 2017 04 2017 01 2018 02 2018 03 2018 04 2018 01 2019 02 2019 03 2019 04 2019 01 2020 02 2020 03 2020 04 2020 01 2021 02 2021 03 2021 04 2021 01 2022 02 2022 03 2022 04 2022 01 2023 02 2023 03 2023 Chloroform Removed (Pounds) 0 0 0 0 0 0 _., _., 0 0 _., 0 _., 0 i') i I N ~ s:: w C/) C/) 0 -+, 0 ::J"' 0 a 0 .... 3 ;o CD 3 0 < CD a. C" '< 0 C w ::+ CD .... .-. C" C/) -- Q1 2013 Q2 2013 Q3 2013 Q4 2013 Q1 2014 Q2 2014 Q3 2014 Q4 2014 Q1 2015 Q2 2015 Q3 2015 Q4 2015 Q1 2016 Q2 2016 Q3 2016 Q4 2016 Q1 2017 Q2 2017 Q3 2017 Q4 2017 Q1 2018 Q2 2018 Q3 2018 Q4 2018 Q1 2019 Q2 2019 Q3 2019 Q4 2019 Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Q1 2023 Q2 2023 Q3 2023 0 0 0 0 0 ' ◄• ' '. '. '. ' '. '. ◄ ► ◄ ► ◄ ► ◄ ◄ • • • ◄ ► ◄ • ◄ ► ◄ ► ◄ ► ◄ ► - ◄• ◄• ◄ • ◄ ► '. ◄• ◄ ► ◄• ◄• ◄• ◄• ◄• ◄ • • • • ► ◄ ► •• • • • • ◄• Chloroform Removed (Pounds) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ' ' ' 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ' ' --... 0 0 0 0 0 i I N 01 :s;: Ill en en 0 -() ::::; 0 a o' -, 3 ;;a (D 3 0 < (D a. C" '< 0 C Ill :::+ (D -, -C" en - 0 I\J 0 0 Q2 2015 Q3 2015 Q4 2015 Q1 2016 Q2 2016 Q3 2016 Q4 2016 Q1 2017 Q2 2017 Q3 2017 Q4 2017 Q1 2018 Q2 2018 Q3 2018 Q4 2018 Q1 2019 Q2 2019 Q3 2019 Q4 2019 Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Q1 2023 Q2 2023 Q3 2023 Chloroform Removed (Pounds) ...... ...... ~ ~ ~ 0 0 0 I 0 0 I\J 0 ...... ...... .I:>, 0) 0 0 ...... OJ 0 I\J 0 0 i I (.,.) --...J :s;:: Q) en en 0 ...... () ::::r 0 -, 0 o' -, 3 :::a CD 3 0 < CD 0.. C" '< 0 C Q) ffi" -, --0" en - Chloroform Removed (Pounds) 0 ....>. N w 0 0 0 0 Q4 2016 Q1 2017 Q2 2017 Q3 2017 Q4 2017 Q1 2018 Q2 2018 Q3 2018 Q4 2018 Q1 2019 Q2 2019 Q3 2019 Q4 2019 Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Q1 2023 Q2 2023 Q3 2023 .t>, 01 a, 0 0 0 i I c.,.;, co :s::: Q) CJ) CJ) 0 -() ::::r 0 --, 0 o' --, 3 :::a CD 3 0 < CD a. C" '< 0 C Q) ffi" --, -C" CJ) -- 9 0 0 t Q2 2019 Q3 2019 Q4 2019 Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Q1 2023 Q2 2023 Q3 2023 Chloroform Removed (Pounds) 9 9 9 9 0 u, ...,. 0 ...,. u, "' 0 0 ts) u, 0 c,J 0 9 c,J u, 9 ~ 0 i Ji. 0 s;:: ll) Cl) Cl) 0 -(") :::T 0 a 0 -, 3 ::::0 CD 3 0 c§ C. O"' '< 0 C ll) s--, -o= (fJ -- 02 2018 03 2018 04 2018 01 2019 02 2019 03 2019 04 2019 01 2020 02 2020 03 2020 04 2020 01 2021 02 2021 03 2021 04 2021 01 2022 02 2022 03 2022 04 2022 01 2023 02 2023 03 2023 0 0 0 ...... 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Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: MW-04_08092023 Matrix: Water Date Sampled: 8/9/23 10:00 Inorganic Chloride Nitrate+ Nitrite, Total, as N \olatile Oq:anic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 44.7 3.90 < 1.0 1030 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 100 1.0 1.0 PO#: Receipt: 8/11/23 11 :10@ 0.3 ·c Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA8260D EPA8260D EPA8260D EPA 8260D CtF WO#: 23H1109 Preparation Date/Time 8/16/23 8/17/23 8/11/23 8/11 /23 8/11/23 8/11/23 Lab ID: 23H1109-08 Analysis Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11 /23 8/11/23 .E!mtl Page 10 of 29 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD ~ABORAT0RIE:S Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-01_08092023 Matrix: Water Date Sampled: 8/9/23 10:08 Inorganic Chloride Nitrate+ Nitrite, Total, as N \ olatilc Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 44.6 3.83 < 1.0 891 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 100 1.0 1.0 PO#: Receipt: 8/11/23 11 :1 o@ 0.3 ·c Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA8260D EPA8260D EPA8260D EPA8260D CtF WO#: 23H1109 Preparation Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Lab ID: 23Hl109-06 Analysis Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 E!!Jilll Page 8 of 29 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0 :(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD !..ABOAATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-02_08092023 Matrix: Water Date Sampled: 8/9/23 9:52 lnoq.:anic Chloride Nitrate+ Nitrite, Total, as N \'olalih: Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 41.2 3.23 < 1.0 867 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 100 1.0 1.0 PO#: Receipt: 8/11/23 11:10@0.3 °C Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday EPA300.0 EPA353.2 EPA8260D EPA8260D EPA8260D EPA8260D CtF WO#: 23H1109 Preparation Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Lab ID: 23H1109-05 Analysis Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Flag(s) Page 7 of 29 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABORATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-03_09132023 Matrix: Water Date Sampled: 9/13/23 6:55 Inorganic Chloride Nitrate+ Nitrite, Total, as N Volatile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 26.9 6.40 < 1.0 < 1.0 < 1.0 < 1.0 Project Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.500 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35@ o.o ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/21/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-02 Analysis Date/Time 9/22/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Flag(s) Page 5 of 44 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABQP.ATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-04_08092023 Matrix: Water Date Sampled: 8/9/23 10:25 Inorganic Chloride Nitrate+ Nitrite, Total, as N \ ola1ik Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 40.6 6.08 < 1.0 1020 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.200 1.0 100 1.0 1.0 PO#: Receipt: 8/11/23 11:10@ 0.3 ·c Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA8260D EPA8260D EPA8260D EPA8260D CtF WO#: 23H1109 Preparation Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Lab ID: 23H1109-09 Analysis Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Page 11 of 29 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABORATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-05_09142023 Certificate of Analysis PO#: Receipt: 9/15/23 10:35@ 0.0 ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Matrix: Water Lab ID: 2311200-20 Date Sampled: 9/14/23 8:07 Sampled By: Tanner Holliday lnoq~anic Chloride Nitrate + Nitrite, Total, as N \olalik Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 50.5 8.83 < 1.0 9.1 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Minimum Reporting Preparation Limit 1.00 0.200 1.0 1.0 1.0 1.0 EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Date/Time 9/25/23 9/20/23 9/25/23 9/25/23 9/25/23 9/25/23 Analysis Date/Time 9/25/23 9/20/23 9/25/23 9/25/23 9/25/23 9/25/23 fugOO Page 23 of 44 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORO LABOJ!ATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-06_09142023 Matrix: Water Date Sampled: 9/14/23 7:34 Inorganic Chloride Nitrate+ Nitrite, Total, as N \'olalilc Ckganic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 44.0 0.170 < 1.0 2.6 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35@ o.o ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA 353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-17 Analysis Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 fufilll Page 20 of44 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABORATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-07 _09272023 Matrix: Water Date Sampled: 9/27/23 7:06 Inorganic Chloride Nitrate+ Nitrite, Total, as N \ olalill-Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 45.2 4.02 < 1.0 790 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 50.0 1.0 1.0 PO#: Receipt: 9/28/23 11:15@ -0.4 ·c Date Reported: 10/11/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday EPA300.0 EPA353.2 EPA 8260D/50308 EPA 8260D/50308 EPA 8260D/50308 EPA 8260D/50308 CtF WO#: 2312285 Preparation Date/Time 10/5/23 10/3/23 10/9/23 10/9/23 I 0/9/23 10/9/23 Lab ID: 2312285-06 Analysis Date/Time 10/5/23 I 0/3/23 10/9/23 10/9/23 10/9/23 10/9/23 J-LOW-C Page 8 of 19 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH·FORD :..ABORATORIE~ Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-08_09142023 Matrix: Water Date Sampled: 9/14/23 8:45 Inorganic Chloride Nitrate+ Nitrite, Total, as N \'olalilc Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 53.5 0.720 < 1.0 7.4 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35@ 0.0 °C Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/20/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-21 Analysis Date/Time 9/25/23 9/20/23 9/25/23 9/25/23 9/25/23 9/25/23 Flag(s) Page 24 of 44 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD :.AB0P.AtORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-09_09142023 Matrix: Water Date Sampled: 9/14/23 7:55 Inorganic Chloride Nitrate+ Nitrite, Total, as N Volatile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 36.2 0.690 < 1.0 6.2 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35 @ 0.0 ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-19 Analysis Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Flag(s) Page 22 of 44 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABOAATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-10_09272023 Matrix: Water Date Sampled: 9/27/23 6:38 lnoq.:anic Chloride Nitrate+ Nitrite, Total, as N \olatik 01·gi1 nic Compounds Carbon Tetrachloride Chlorofonn Chloromethane Methylene Chloride 44.8 3.18 < 1.0 286 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 10.0 1.0 1.0 PO#: Receipt: 9/28/23 11:15@ -0.4 •c Date Reported: 10/11/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA 353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2312285 Preparation Date/Time 10/5/23 10/3/23 10/9/23 10/9/23 I 0/9/23 10/9/23 Lab ID: 2312285-03 Analysis Date/Time 10/5/23 10/3/23 10/9/23 10/9/23 10/9/23 10/9/23 ~ J-LOW-C Page 5 of 19 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABORArORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-11_08092023 Matrix: Water Date Sampled: 8/9/23 9:45 Inorganic Chloride Nitrate+ Nitrite, Total, as N \ olatik Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 45.2 6.05 < 1.0 2630 < 1.0 < 1.0 Project Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting !dm!! 1.00 0.200 1.0 100 1.0 1.0 PO#: Receipt: 8/11/23 11:10@0.3 ·c Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA8260D EPA8260D EPA8260D EPA8260D CtF WO#: 23H1109 Preparation Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Lab ID: 23H1109-12 Analysis Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Flag(s) Page 14 of 29 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0 :(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD :..ABOHAfOP.IES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-12_09132023 Matrix: Water Date Sampled: 9/13/23 7:15 Inorganic Chloride Nitrate+ Nitrite, Total, as N Volatile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 50.3 4.02 < 1.0 < 1.0 < 1.0 < 1.0 Project Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0,200 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35 @0.0 °C Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D15030B EPA 8260D/5030B EPA 8260D15030B CtF WO#: 2311200 Preparation Date/Time 9125/23 9/19/23 9125123 9125/23 9/25/23 9/25/23 Lab ID: 2311200-04 Analysis Date/Time 9125/23 9/19123 9/25/23 9/25/23 9/25/23 9/25/23 Page 7 of 44 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0 :(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABORATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-13_09132023 Matrix: Water Date Sampled: 9/13/23 7:43 Inorganic Chloride Nitrate+ Nitrite, Total, as N \ olalile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 60.9 3.93 < 1.0 < 1.0 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.200 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35@ o.o ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA 353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-07 Analysis Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 flrntl Page 10 of 44 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD !..ABORAfORIES. Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-14_09132023 Matrix: Water Date Sampled: 9/13/23 7:59 Inorganic Chloride Nitrate+ Nitrite, Total, as N Volatile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 44.0 6.22 < 1.0 < 1.0 < 1.0 < 1.0 Project Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.200 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35@ o.o ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-09 Analysis Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Flag(s) Page 12 of 44 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: MW-26_08092023 Matrix: Water Date Sampled: 8/9/23 9:35 Inorganic Chloride Nitrate+ Nitrite, Total, as N \ olalilc Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 62.3 0.324 < l.0 2610 < 1.0 < 1.0 Project Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit l.00 0.100 l.0 100 1.0 l.0 PO#: Receipt: 8/11/23 11:10@ 0.3 "C Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday EPA300.0 EPA353.2 EPA8260D EPA8260D EPA8260D EPA8260D CtF WO#: 23H1109 Preparation Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/ll/23 8/11/23 Lab ID: 23Hl109-11 Analysis Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Flag(s) Page 13 of 29 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD !.ABOt!ATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-16_09272023 Matrix: Water Date Sampled: 9/27/23 6:30 Inorganic Chloride Nitrate+ Nitrite, Total, as N Volatile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 91.9 4.93 < 1.0 182 < 1.0 < 1.0 Project Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.200 1.0 10.0 1.0 1.0 PO#: Receipt: 9/28/23 11: 15 @ -0.4 °C Date Reported: 10/11/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2312285 Preparation Date/Time 10/5/23 10/3/23 10/5/23 10/5/23 10/5/23 10/5/23 Lab ID: 2312285-02 Analysis Date/Time 10/5/23 10/3/23 10/5/23 I 0/5/23 l0/5/23 10/5/23 fug{tl Page 4 of 19 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD !.ABORATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: MW-32_09262023 Matrix: Water Date Sampled: 9/26/23 11 :30 Inorganic Chloride Nitrate+ Nitrite, Total, as N Volatile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 37.5 < 0.100 < 1.0 < 1.0 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 1.0 1.0 1.0 PO#: Receipt: 9/28/23 11:15@-0.4 ·c Date Reported: 10/11/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/50308 EPA 8260D/50308 CtF WO#: 2312285 Preparation Date/Time 10/5/23 10/3/23 10/6/23 10/6/23 10/6/23 10/6/23 Lab ID: 2312285-01 Analysis Date/Time 10/5/23 10/3/23 10/6/23 10/6/23 10/6/23 10/6/23 Flagfs) J-LOW-L Page 3 of 19 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABORATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-18_09142023 Matrix: Water Date Sampled: 9/14/23 9:35 Inorganic Chloride Nitrate+ Nitrite, Total, as N \"olatile Organic Compounds Carbon Tetrachloride Chloroform Chlorornethane Methylene Chloride Result 45.8 3.84 < 1.0 55.5 < 1.0 < 1.0 Project Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units rng/L rng/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.1 00 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35@ o.o ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA 300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/25/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-24 Analysis Date/Time 9/26/23 9/25/23 9/25/23 9/25/23 9/25/23 9/25/23 E!!g{tl Page 27 of 44 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD ~AB◊AATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-19_08092023 Matrix: Water Date Sampled: 8/9/23 7:25 Inorganic Chloride Nitrate+ Nitrite, Total, as N \'olatilc Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 122 1.57 < 1.0 198 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 2.00 0.200 1.0 10.0 1.0 1.0 PO#: Receipt: 8/11/23 11:10@ 0.3 •c Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday EPA300.0 EPA353.2 EPA8260D EPA8260D EPA8260D EPA8260D CtF WO#: 23H1109 Preparation Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Lab ID: 23Hl109-14 Analysis Date/Time 8/16/23 8/17/23 8/11 /23 8/11/23 8/11/23 8/11/23 ~ Page 16 of 29 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD :...-.aott.A.t OJt1u Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-21_08092023 Matrix: Water Date Sampled: 8/9/23 8:44 Inorganic Chloride Nitrate+ Nitrite, Total, as N , ola!ilc Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 161 6.13 < 1.0 49.7 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 2.00 0.500 1.0 1.0 1.0 1.0 PO#: Receipt: 8/11/23 11:10@ 0.3 ·c Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA8260D EPA8260D EPA8260D EPA8260D CtF WO#: 23H1109 Preparation Date/Time 8/16/23 8/17/23 8/11/23 8/1 1/23 8/11/23 8/11/23 Lab ID: 23H1109-04 Analysis Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11 /23 8/11/23 Flag(s) Page 6 of 29 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD ~ABOF!ATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-22_08092023 Matrix: Water Date Sampled: 8/9/23 9:11 Inorganic Chloride Nitrate+ Nitrite, Total, as N \'olatik Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 617 58.8 < 1.0 1890 < 1.0 1.9 Project Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 10.0 2.00 1.0 100 1.0 1.0 PO#: Receipt: 8/11/23 11:10@ 0.3 ·c Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA8260D EPA8260D EPA8260D EPA8260D CtF WO#: 23H1109 Preparation Date/Time 8/17/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11 /23 Lab ID: 23H1109-10 Analysis Date/Time 8/18/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Page 12 of 29 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABORATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-23_09132023 Matrix: Water Date Sampled: 9/13/23 8:32 Inorganic Chloride Nitrate+ Nitrite, Total, as N \'olatilc Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 42.3 < 0.100 < 1.0 < 1.0 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35 @ 0.0 ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-13 Analysis Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Flag(s) Page 16 of 44 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0 :(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD !..AB011AfORIE5 Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-24_08092023 Matrix: Water Date Sampled: 8/9/23 9:03 Inorganic Chloride Nitrate+ Nitrite, Total, as N \ olatilc Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 928 26.2 < 1.0 65.7 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 10.0 I.OD 1.0 1.0 1.0 1.0 PO#: Receipt: 8/11/23 11:10@ 0.3 ·c Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA8260D EPA8260D EPA8260D EPA8260D CtF WO#: 23H1109 Preparation Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/1 1/23 8/11/23 Lab ID: 23H1109-02 Analysis Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Flag(s) Page 4 of 29 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD ~AB0P.ATORIE$ Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-25_08092023 Matrix: Water Date Sampled: 8/9/23 8:53 Inorganic Chloride Nitrate+ Nitrite, Total, as N \ olatilc Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 79.9 0.790 < 1.0 < 1.0 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit l.00 0.100 l.0 1.0 1.0 1.0 PO#: Receipt: 8/11/23 11 :1 o@ 0.3 ·c Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA8260D EPA 8260D EPA8260D EPA8260D CtF WO#: 23H1109 Preparation Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Lab ID: 23Hl109-01 Analysis Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Flag(s) Page 3 of 29 I Chemtech-F ord Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABORATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-26_09272023 Certificate of Analysis PO#: Receipt: 9/28/23 11:15@ -0.4 ·c Date Reported: 10/11/2023 Project Name: 3rd Quarter Chloroform 2023 Matrix: Water Lab ID: 2312285-05 Date Sampled: 9/27/23 6:58 Sampled By: Tanner Holliday Inorganic Chloride Nitrate+ Nitrite, Total, as N \ olatilc Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 34.0 10.2 < 1.0 709 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Minimum Reporting Preparation Limit 1.00 0.500 1.0 50.0 1.0 1.0 Method EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2312285 Date/Time 10/5/23 10/3/23 10/9/23 10/9/23 10/9/23 I 0/9/23 Analysis Date/Time 10/5/23 10/3/23 10/9/23 l0/9/23 10/9/23 10/9/23 Flag(s) J-LOW-C Page 7 of 19 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0 :(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-27 _09142023 Matrix: Water Date Sampled: 9/14/23 7:43 Inorganic Chloride Nitrate+ Nitrite, Total, as N \'olatilc Oq.:anic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 26.3 15.8 < 1.0 2.9 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 1.00 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35@ o.o ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/50308 EPA 8260D/50308 EPA 8260D/50308 EPA 8260D/50308 CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/J 9/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-18 Analysis Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 ~ Page 21 of 44 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABOF!ATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-28_09132023 Matrix: Water Date Sampled: 9/13/23 7:30 Inorganic Chloride Nitrate+ Nitrite, Total, as N Volatile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 51.1 11.5 < 1.0 < 1.0 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.500 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35@ o.o ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-05 Analysis Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Page 8 of44 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABORATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-29_09272023 Matrix: Water Date Sampled: 9/27/23 6:48 Inorganic Chloride Nitrate+ Nitrite, Total, as N \olalill-Or!!,anic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 41.1 2.82 < 1.0 457 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 O.IOO 1.0 50.0 1.0 1.0 PO#: Receipt: 9/28/23 11:15@ -0.4 ·c Date Reported: 10/11/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/50308 EPA 8260D/50308 EPA 8260D/50308 EPA 8260D/50308 CtF WO#: 2312285 Preparation Date/Time 10/5/23 10/3/23 10/9/23 10/9/23 10/9/23 10/9/23 Lab ID: 2312285-04 Analysis Date/Time 10/5/23 10/3/23 10/9/23 10/9/23 10/9/23 10/9/23 J-LOW-C Page 6 of 19 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LAB0RA1'0RlES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-30_09142023 Matrix: Water Date Sampled: 9/14/23 8:55 Inorganic Chloride Nitrate+ Nitrite, Total, as N \olatilc Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 36.7 3.34 < 1.0 47.8 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35 @ 0.0 •c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPAJOO.O EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 82600/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/20/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-22 Analysis Date/Time 9/25/23 9/20/23 9/25/23 9/25/23 9/25/23 9/25/23 Page 25 of 44 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0 :(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABOflATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-30R_09132023 Matrix: Water Date Sampled: 9/13/23 12:48 Inorganic Chloride Nitrate+ Nitrite, Total, as N \ olatile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result < 1.00 <0.100 < 1.0 6.8 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35@ 0.0 °C Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-15 Analysis Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Page 18 of 44 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0 :(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD ~AB0RATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-31_09132023 Matrix: Water Date Sampled: 9/13/23 8:06 Inorganic Chloride Nitrate+ Nitrite, Total, as N Volatile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 42.4 0.340 < 1.0 < 1.0 < 1.0 < 1.0 Project Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting !dmi! 1.00 0.100 1.0 1.0 J.O 1.0 PO#: Receipt: 9/15/23 10:35@ 0.0 ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-10 Analysis Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 fu.filll Page 13 of 44 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0 :(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD !.ABOF!ATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-32_09132023 Matrix: Water Date Sampled: 9/13/23 7:35 Inorganic Chloride Nitrate+ Nitrite, Total, as N Volatilt: Or::.:anic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 52.6 1.63 < 1.0 < 1.0 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35@ o.o ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-06 Analysis Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Page 9 of 44 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD I.AHO'IATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-33_09142023 Matrix: Water Date Sampled: 9/14/23 9:21 Inorganic Chloride Nitrate+ Nitrite, Total, as N \ olatilc Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 52.0 4.19 < J.0 5 l.3 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.200 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35 @ o.o ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/20/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-23 Analysis Date/Time 9/26/23 9/20/23 9/25/23 9/25/23 9/25/23 9/25/23 ~ Page 26 of 44 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH·FORD LAB01'tAT0RIE5 Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-34_09142023 Matrix: Water Date Sampled: 9/14/23 7:20 Inorganic Chloride Nitrate+ Nitrite, Total, as N \'olalile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 20.6 1.27 < 1.0 < 1.0 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35 @ 0.0 •c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 82600/50308 EPA 82600/50308 EPA 82600/50308 EPA 82600/50308 CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-16 Analysis Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Page 19 of 44 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABORA.T'ORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-35_09132023 Matrix: Water Date Sampled: 9/13/23 8:22 Inorganic Chloride Nitrate+ Nitrite, Total, as N \olatilc Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 32.4 2.00 < 1.0 1.4 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 1.0 l.0 1.0 PO#: Receipt: 9/15/23 10:35 @ 0.0 ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-12 Analysis Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 !:!!g{tl Page 15 of 44 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD t.ABO?.ATDRIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-36_09132023 Matrix: Water Date Sampled: 9/13/23 7:50 Inorganic Chloride Nitrate+ Nitrite, Total, as N Volatile Organic Compounds Carbon Tetrachloride Chloroform Cblorometbane Methylene Chloride Result 67.3 0.140 < 1.0 < 1.0 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35@ o.o ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/l 9/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-08 Analysis Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 fug{tl Page 11 of 44 I Chemtech-Ford Laboratories 9632 South 500 West Sandy.UT 84070 0 :(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABORATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-36R_09122023 Certificate of Analysis PO#: Receipt: 9/15/23 10:35 @ 0.0 °C Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Matrix: Water Lab ID: 2311200-01 Date Sampled: 9/12/23 12:20 Sampled By: Tanner Holliday lnori::anic Chloride Nitrate+ Nitrite, Total, as N \ ohllilc Ori::anic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result < 1.00 < 0.100 < 1.0 6.8 < 1.0 < 1.0 Project Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Minimum Reporting Preparation Limit 1.00 0.100 1.0 1.0 1.0 1.0 Method EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Date/Time 9/21/23 9/20/23 9/25/23 9/25/23 9/25/23 9/25/23 Analysis Date/Time 9/22/23 9/20/23 9/25/23 9/25/23 9/25/23 9/25/23 fugOO Page 4 of 44 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABONATOR:IEcS Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-37 _08092023 Matrix: Water Date Sampled: 8/9/23 9:20 Inorganic Chloride Nitrate+ Nitrite, Total, as N Volatile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 252 25.1 3.2 9620 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 10.0 1.00 1.0 100 1.0 1.0 PO#: Receipt: 8/11/23 11 :1 o@ 0.3 ·c Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA 353.2 EPA 8260D EPA8260D EPA8260D EPA8260D CtF WO#: 23H1109 Preparation Date/Time 8/17/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Lab ID: 23Hl109-15 Analysis Date/Time 8/18/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 ~ Page 17 of 29 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0 :(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-38_09132023 Matrix: Water Date Sampled: 9/13/23 8:41 Inorganic Chloride Nitrate+ Nitrite, Total, as N \ olatik Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 41.l 8.18 < l.0 < 1.0 < 1.0 < l.O Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.200 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35@ 0.0 °C Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-14 Analysis Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Page 17 of 44 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABOF!ATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-39_08092023 Matrix: Water Date Sampled: 8/9/23 9:26 Inorganic Chloride Nitrate+ Nitrite, Total, as N \ olatile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 95.5 5.01 2.8 3440 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.200 1.0 100 1.0 1.0 PO#: Receipt: 8/11/23 11:10@0.3"C Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA 353.2 EPA8260D EPA8260D EPA8260D EPA8260D CtF WO#: 23H1109 Preparation Date/Time 8/16/23 8/17/23 8/11/23 8/1 1/23 8/11/23 8/11/23 Lab ID: 23Hl109-13 Analysis Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Page 15 of 29 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD !..ABORATORIES, Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-40_08092023 Matrix: Water Date Sampled: 8/9/23 10:35 lnoq,:anic Chloride Nitrate+ Nitrite, Total, as N \'olatik Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 39.7 1.88 < LO 282 < l.O < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 10.0 1.0 1.0 PO#: Receipt: 8/11/23 11:10@0.3 ·c Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D EPA8260D EPA8260D EPA 8260D CtF WO#: 23H1109 Preparation Date/Time 8/16/23 8/1 7/23 8/11/23 8/11/23 8/11/23 8/11/23 Lab ID: 23H1109-03 Analysis Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Page 5 of 29 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0 :(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD ~ABOP.ATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-41_08092023 Matrix: Water Date Sampled: 8/9/23 10:18 lnoq,:anic Chloride Nitrate+ Nitrite, Total, as N \'olatil~ O,·ganic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 41.0 5.59 < 1.0 1050 < 1.0 < 1.0 Project Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0,200 1.0 100 1.0 1.0 PO#: Receipt: 8/11/23 11:10@0.3 ·c Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday EPA300.0 EPA353.2 EPA8260D EPA8260D EPA8260D EPA8260D CtF WO#: 23H1109 Preparation Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Lab ID: 23H1109-07 Analysis Date/Time 8/16/23 8/17/23 8/11/23 8/11/23 8/11/23 8/11/23 Page 9 of 29 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LAIIQP.ATO~IES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-42_09132023 Matrix: Water Date Sampled: 9/13/23 7:05 Inorganic Chloride Nitrate+ Nitrite, Total, as N Volatile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 20.4 3.33 < 1.0 < 1.0 < 1.0 < 1.0 Project Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35@ 0.0 "C Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-03 Analysis Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 ~ Page 6 of 44 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABORATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-43_09132023 Matrix: Water Date Sampled: 9/13/23 8:14 Inorganic Chloride Nitrate+ Nitrite, Total, as N Volatile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 35.2 D.410 < 1.0 < 1.0 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.100 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35 @ o.o ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA 353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D15030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-11 Analysis Date/Time 9/25/23 9/19/23 9/25/23 9/25/23 9/25/23 9/25/23 fug{tl Page 14 of 44 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0 :(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD ~ABOP.ATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-60_08092023 Certificate of Analysis PO#: Receipt: 8/11/23 11:10@0.3°C Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Matrix: Water Lab ID: 23H1109-16 Date Sampled: 8/9/23 7:45 Sampled By: Tanner Holliday Inorganic Chloride Nitrate+ Nitrite, Total, as N \olatik Organic Compounds Carbon Tetrachloride Chlorofo1111 Chloromethane Methylene Chloride Result < 1.00 <0.100 < 1.0 < 1.0 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Minimum Reporting Preparation Limit 1.00 0.100 1.0 1.0 1.0 1.0 EPA300.0 EPA353.2 EPA8260D EPA8260D EPA8260D EPA8260D CtF WO#: 23H1109 Date/Time 8/17/23 8/17/23 8/15/23 8/15/23 8/15/23 8/15/23 Analysis Date/Time 8/18/23 8/17/23 8/15/23 8/15/23 8/15/23 8/15/23 ~ Page 18 of 29 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABORATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-65_09132023 Matrix: Water Date Sampled: 9/13/23 7:15 Inorganic Chloride Nitrate+ Nitrite, Total, as N Volatile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 52.5 4.66 < 1.0 < 1.0 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.500 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35 @ o.o ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260O/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/25/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-25 Analysis Date/Time 9/26/23 9/25/23 9/25/23 9/25/23 9/25/23 9/25/23 ~ Page 28 of 44 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LABORA.fORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-70_09142023 Matrix: Water Date Sampled: 9/14/23 7:07 Inuq:anic Chloride Nitrate+ Nitrite, Total, as N \ olatilc Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride 53.2 8.10 < 1.0 8.8 < J.O < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.00 0.200 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35 @ o.o ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/25/23 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-26 Analysis Date/Time 9/26/23 9/25/23 9/25/23 9/25/23 9/25/23 9/25/23 Page 29 of 44 Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0 :(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD !.ABO~ATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: TW4-75_09262023 Matrix: Water Date Sampled: 9/26/23 11 :30 Inorganic Chloride Nitrate+ Nitrite, Total, as N \ olatil~ 01·ganic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result 37.6 <0.100 < 1.0 < 1.0 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units mg/L mg/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting !ill!!!! 1.00 0.100 1.0 1.0 1.0 1.0 PO#: Receipt: 9/28/23 11:15@ -0.4 ·c Date Reported: 10/11/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA300.0 EPA353.2 EPA 8260D/50308 EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2312285 Preparation Date/Time 10/5/23 10/3/23 10/9/23 10/9/23 10/9/23 10/9/23 Lab ID: 2312285-07 Analysis Date/Time 10/5/23 10/3/23 10/9/23 10/9/23 10/9/23 10/9/23 J-LOW-C Page 9 of 19 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD LAB OH AT DRIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: Trip Blank Matrix: Water Date Sampled: 8/9/23 7:25 \'olalile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride < l.O < 1.0 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.0 1.0 1.0 1.0 PO#: Receipt: 8/11/23 11:10@0.J"C Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday EPA8260D EPA8260D EPA8260D EPA8260D CtF WO#: 23H1109 Preparation Date/Time 8/11/23 8/11/23 8/11/23 8/11/23 Lab ID: 23H1109-17 Analysis Date/Time 8/11/23 8/11/23 8/11/23 8/11/23 Page 19 of 29 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD !..ABORATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: Trip Blank Matrix: Water Date Sampled: 9/12/23 12:20 Volatile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride < 1.0 < 1.0 < 1.0 < 1.0 Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.0 1.0 1.0 1.0 PO#: Receipt: 9/15/23 10:35@ 0.0 °C Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2311200 Preparation Date/Time 9/25/23 9/25/23 9/25/23 9/25/23 Lab ID: 2311200-27 Analysis Date/Time 9/25/23 9/25/23 9/25/23 9/25/23 Page 30 of 44 I Chemtech-F ord Laboratories 9632 South 500 West Sandy, UT 84070 0 :(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Serving the lntermountain West Since 1953 CHEMTECH-FORD :..AS ORATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: Trip Blank Matrix: Water Date Sampled: 9/26/23 11 :30 \'olatile Organic Compounds Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride Result < 1.0 < 1.0 < 1.0 < 1.0 Project Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com Units ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 1.0 1.0 1.0 1.0 PO#: Receipt: 9/28/23 11:15@ -0.4 ·c Date Reported: 10/11/2023 Project Name: 3rd Quarter Chloroform 2023 Sampled By: Tanner Holliday Method EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B EPA 8260D/5030B CtF WO#: 2312285 Preparation Date/Time I 0/9/23 10/9/23 10/9/23 10/9/23 Lab ID: 2312285-08 Analysis Date/Time 10/9/23 10/9/23 10/9/23 10/9/23 fil!&OO J-LOW-C Page 10 of 19 9632 South 500 West CHEMTECH·FORD LABO~o\TO~lc:S 8/24/2023 Work Order: 23 H 1109 Project: 3rd Quarter Chloroform 2023 Energy Fuels Resources, Inc. Attn: Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Client Service Contact: 801.262.7299 The analyses presented on this report were performed in accordance with the National Environmental Laboratory Accreditation Program (NELAP) unless noted in the comments, flags, or case narrative. If the report is to be used for regulatory compliance, it should be presented in its entirety, and not be altered. Approved By: Melissa Connolly, Project Manager Sandy, Utah 84070 801 .262.7299 Main 866. 792.0093 Fax Serving the lntermountain West since 1953 www.ChemtechFord.com Page 1 of 29 ' I CHEMTECH-FORD LABORATORIES Chemtech-Ford Laboratories Serving the lntermountain West Since 1953 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Energy Fuels Resources, Inc. Project: 3rd Quarter Chloroform 2023 Project Manager: Tanner Holliday Laboratory ID 23H1109-01 23H1109-02 23H1109-03 23H1109-04 23H1109-05 23H1109-06 23H1109-07 23H1109-08 23H1109-09 23H1109-10 23H1109-11 23H1109-12 23H1109-13 23H1109-14 23H1109-15 23H1109-16 23H1109-17 Sample Name TW4-25 _ 08092023 TW4-24_08092023 TW4-40_08092023 TW4-21_08092023 TW4-02_08092023 TW4-01 _08092023 TW4-41 _08092023 MW-04_08092023 TW4-04_08092023 TW4-22_08092023 MW-26 _ 08092023 TW4-11 _08092023 TW4-39_08092023 TW4-19_08092023 TW4-37 _08092023 TW4-60_08092023 Trip Blank Sample Preparation Work Order Report Narrative All samples were prepared within method specified holding times. No preparation issues were noted . Method Blanks All blank values were within method acceptance criteria. No blank values exceeded the minimum reporting limit for any analysis in this work order. Laboratory Control Samples All laboratory control samples were within method acceptance criteria. Method Spikes All method spike recoveries were within method acceptance criteria, except as noted by qualifying flags. Method Spike Duplicates All method spike duplicates were within method acceptance criteria, except as noted by qualifying flags. Corrective Actions There are no corrective actions associated with this work order. Page 2 of 29 I CHEMTECH-FORD Chemtech-Ford Laboratories Serving the lntermountain West Since 1953 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Certificate of Analysis Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Report Footnotes Abbreviations ND= Not detected at the corresponding Minimum Reporting Limit (MRL). PO#: Receipt: 8/11/23 11:10@ 0.3 ·c Date Reported: 8/24/2023 Project Name: 3rd Quarter Chloroform 2023 1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million, 1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion, 1 ng/L = one nanogram per liter or I ng/kg = one nanogram per kilogram = I part per trillion. Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com CtF WO#: 23H1109 Page 20 of 29 -'O -o-i. -03 ,.() •O -Ot -o, -II~ -~ -ltl American West Analytical Laboratories 463W 3600S SaltlakeCity.UT 84115 Phone# (801) 263-8686 Toll Free# (8R8) 263-B686 L~~ Fax• (801) 263-8687 Email awal@awal-labs com www.awal-labs.com Client Energy Fuel■ Re11<>urce■, Inc. Address: 6425 S. Rwy. 191 Blanding, UT 84511 Contact.: Tanner Holliday Phone#: 1435) 678-2221 Cell#: Email: U.0Ulday,'itea.o-ruf\tcl•,oom1 KWelnellia:oaoraf'ael.8.com; Project Name: 3rd Quarter Chloroform 2023 Project#: PO#: Sampler Name: Tanner Holliday 23t\\l09 Date Sample ID: Sampled TW4-25_08092023 8/9/2023 TW4-24_08092023 8/9/2023 TW4-40_08092023 8/9/2023 TW4-21_08092023 8/9/2023 TW4-02_08092023 8/9/2023 TW4-01_08092023 8/9/2023 TW4-41_08092023 8/9/2023 _-04_080920023 8/9/2023 TW4-04_08092023 8/9/2023 TW4-22_08092023 8/9/2023 I --26_08092023 8/9/2023 -\ : TW4-11_08092023 8/9/2023 -~ TW4-39~08092023 8/9/2023 -\~ TW4-19_08092023 8/9/2023 -1~ TW4-37_08092023 8/9/2023 -H!l TW4-60_08092023 8/9/2023 _, 'TRIPBLAIIK 8/9/2023 :,.-:,1:'""'.,.. ..;jd_.., Jl//: / 0.1• 31'0120:Zl w Timo Pnrd~l.am,. f•Mllir~qv 11:K R.•~~I~~ 011rt· S.01'1GlurCI n,,,. PrlnlKa't'III R--•W a.,. SQNIIUni 'flme PrlnlNll!M RallnqulBhed by; Oal•: Signature ftma PrlnlN.ama Time Sampled 853 903 1035 844 952 1008 1018 1000 1025 911 935 945 926 725 920 745 725 Recol\191:i by: Slonat_ura Pnn! N■fflt. ,I Received by Slanatura PrintN.11me ~ace1wa by: Sin ..... Pr1nlNAINI Recel\l&d by: s~""""" PtUI.Ula"'III CHAIN OF CUSTODY All anelY5is will be conducted usmg NELAP acaed1ted methods and all data wm be Mported u~ng AWAL's Manderd analyte list., end reporting llml\11 (POL) unless specrflcally requested otherwise on lhis Chain of Cuslody and/or all.eched documunl.elion AWAL Lab Semple Set# Page 1 of 1 I QC Level: I Turn Around limo: IUnlesa other erra.ngemanl~ have been made, 1°"0 Dn!r: signed ruports will be emailed by 5:00 pm on 3 Standard the day they are due X Include EDD: Laboratory Use Only LOCUS UPLOAD EXCEL Sample11Wen1. Fleld Filtered For. 1 Sh:l)CIIIKI °' i,and dfttMHd ,..,,,,t,;,.~G:. 2 For Compliance Wtth: l■III09-nt.CUr• ~-c □ NELAP • □ RCRA □ CWA • Reailved Broken/leaking □ SOWA (lmpmperty Seated) □ ELAP/ A2LA y N 0 □ NLLAP o;-c D N~Complience 6 Propndy Preserwd l;i C G° D Other. N "' ~ff al bench ; '2. .. C E "' 0 "' N ! C "' ; 0 C ~ Known Hazards 0 '.-edWrthin 5 ., I!: "' u 0. 8 ~ ~ & . mg rimes '!; E tl V N ,. .,i I!: Samole Comments 5 w X X X ~-IZA~ 5 w X X X f\-c:, -l\'8~ COCTape .. , 5 w X X X wY2.1-1314 5 w X X X , PtoMN n outer Package y N NA 5 w X X X 5 w X X X 2 Unbroken Outer Package 5 w X X X y N NA 5 w X X X ) Presenlon ffllN y NA 5 w X X X 4 Unbroken on rnol• 5 w X X X y NA 5 w X X X 11ix,ooondo, 9•'"":t:Sample 5 w X X X Lab61&el'ld COC~? 5 w X X X w CA?s 5 w X X X Samele Receiet Conditions: l,YCo"""' Conrainers ( ) Headspace Present (VOC) ( ) Custody Seals Present 5 w X X X ( "'((onlainers Intact it-r'<:oc ln<luded ( ) Temperature Blank s w X X X (u(OC and Labels Match ,µ,Coe Complete ( ~@L1o1~d ww1:;· in~ ID J w X ( -f'Received on Ice (j.Sufficient Sample Volume Checked by: JG A.AJ.J.~ ~ ... ~ 0 "" ~]Lll2?... lt.:ID Special Instructions: 'li=>X'\~-e T..J.v--, l I A V\ Time I t I -011\e See the Analytical Scope or Work for Reporting Limits and VOC analyte list. lime Da1a: Time JPS GROUND Date: TRACKING#: 1Z 187Y4Y03 9755 6142 llme Pa ge 21 of 29 QC Report for Work Order (WO) -23H1109 Analyte % Rec RPD Limits RPD Max Result Source Cone Spk Value MRL DF Blank -EPA 300.0 QC Sample ID: BXH0702-BLK1 Batch: BXH0702 Date Prepared: 08/16/2023 Date Analyzed: 08/16/2023 Units: mg/L Chloride ND 1.00 1.00 QC Sample ID: BXH0805-BLK1 Batch: BXH0805 Date Prepared: 08/17/2023 Date Analyzed: 08/18/2023 Units: mg/L Chloride ND 1.00 1.00 LCS -EPA 300.0 QC Sample ID: BXH0702-BS 1 Batch: BXH0702 Date Prepared: 08/16/2023 Date Analyzed: 08/16/2023 Units: mg/L Chloride 100 90 -110 50.1 50.0 1.00 1.00 QC Sample ID: BXH0805-BS1 Batch: BXH0805 Date Prepared: 08/17/2023 Date Analyzed: 08/18/2023 Units: mg/L Chloride 100 90 -110 50.1 50.0 1.00 1.00 Matrix Spike -EPA 300.0 QC Sample ID: BXH0702-MS1 Batch: BXH0702 QC Source Sample: XXXXXXX-XX Date Prepared: 08/16/2023 Date Analyzed: 08/16/2023 Units: mg/L Chloride 67.2 80 -120 776 768 11.1 1.11 1.00 QM-4X -The spike recovery was outside of QC acceptance limits for the MS and/or MSD due to analyte concentration at 4 times or greater the spike concentration. The QC batch was accepted based on LCS and/or LCSD recoveries within the acceptance limits. E -The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate (CLP E-flag). QC Sample ID: BXH0702-MS2 Batch: BXH0702 QC Source Sample: 23Hl 109-01 Date Prepared: 08/16/2023 Date Analyzed: 08/16/2023 Units: mg/L Chloride 104 80 -120 91.4 79.9 11 .1 1.11 1.00 QC Sample ID: BXH0805-MS1 Batch: BXH0805 QC Source Sample: XXXXXXX-XX Date Prepared: 08/17/2023 Date Analyzed: 08/18/2023 Units: mg/L Chloride 106 80 -120 73.2 61.4 11.1 1.11 1.00 QC Sample ID: BXH0805-MS2 Batch: BXH0805 QC Source Sample: XXXXXXX-XX Date Prepared: 08/l 7 /2023 Date Analyzed: 08/18/2023 Units: mg/L Chloride 103 80 -120 26.8 15.4 11.1 1.11 1.00 Matrix Spike Dup -EPA 300.0 QC Sample ID: BXH0702-MSD1 Batch: BXH0702 QC Source Sample: XXXXXXX-XX Date Prepared: 08/16/2023 Date Analyzed: 08/16/2023 Units: mg/L Chloride 35.9 0.450 80 -120 20 772 768 11.1 1.11 1.00 E -The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate (CLP E-flag). QM-4X -The spike recovery was outside of QC acceptance limits for the MS and/or MSD due to analyte concentration at 4 times or greater the spike concentration. The QC batch was accepted based on LCS and/or LCSD recoveries within the acceptance limits. QC Sample ID: BXH0702-MSD2 Batch: BXH0702 QC Source Sample: 23H1109-01 Date Prepared: 08/16/2023 Date Analyzed: 08/16/2023 Units: mg/L Chloride 97.7 0.782 80 -120 20 90.7 79.9 11.1 1.11 1.00 QC Sample ID: BXH0805-MSD1 Batch: BXH0805 QC Source Sample: XXXXXXX-XX Date Prepared: 08/l 7 /2023 Date Analyzed: 08/18/2023 Units: mg/L Chloride 103 0.479 80 -120 20 72.9 61.4 11.1 1.11 1.00 QC Sample ID: BXH0805-MSD2 Batch: BXH0805 QC Source Sample: XXXXXXX-XX Date Prepared: 08/17/2023 Date Analyzed: 08/18/2023 Units: mg/L Chloride 103 0.106 80 -120 20 26.9 15.4 11.1 1.11 1.00 CtF WO#: 23H1109 www.ChemtechFord.com Page 22 of 29 QC Report for Work Order (WO) -23H1109 Analyte % Rec RPD Limits RPD Max Result Source Cone Blank -EPA 353.2 QC Sample ID: BXH0758-BLK1 Batch: BXH0758 Date Prepared: 08/17/2023 Date Analyzed: 08/17/2023 Units: mg/L Nitrate + Nitrite, Total, as N ND LCS -EPA 353.2 QC Sample ID: BXH0758-BS1 Batch: BXH0758 Date Prepared: 08/17/2023 Date Analyzed: 08/17/2023 Units: mg/L Nitrate + Nitrite, Total, as N 102 90 -110 2.03 Matrix Spike -EPA 353.2 QC Sample ID: BXH0758-MS1 Batch: BXH0758 QC Source Sample: 23Hl109-0l Date Prepared: 08/l 7 /2023 Date Analyzed: 08/l 7 /2023 Units: mg/L Nitrate + Nitrite, Total, as N 84.0 90-110 1.63 0.790 QM-RPO -The recovery was outside acceptance limits for the MS and/or MSD. The RPO between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPO. QC Sample ID: BXH0758-MS2 Batch: BXH0758 QC Source Sample: 23Hll09-02 Date Prepared: 08/17/2023 Date Analyzed: 08/17/2023 Units: mg/L Nitrate + Nitrite, Total, as N 101 90-110 27.2 26.2 Matrix Spike Dup -EPA 353.2 QC Sample ID: BXH0758-MSD1 Batch: BXH0758 QC Source Sample: 23Hl 109-01 Date Prepared: 08/17/2023 Date Analyzed: 08/17/2023 Units: mg/L Nitrate + Nitrite, Total, as N 84.5 0.306 90-110 20 1.64 0.790 QM-RPO -The recovery was outside acceptance limits for the MS and/or MSD. The RPO between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPO. QC Sample ID: BXH0758-MSD2 Batch: BXH0758 QC Source Sample: 23Hl 109-02 Date Prepared: 08/17/2023 Date Analyzed: 08/17/2023 Units: Nitrate + Nitrite, Total, as N 76.9 0.872 90 -110 20 27.0 26.2 QM-12 -The MSD recovery was outside acceptance limits, but passed duplicate spike acceptance criteria. The batch was accepted based on the acceptability of the MS. CtF WO#: 23H1109 www.ChemtechFord.com mg/L Spk Value MRL DF 0.100 1.00 2.00 0.100 1.00 1.00 0.100 1.00 1.00 1.00 10.00 1.00 0.100 1.00 1.00 1.00 10.00 Page 23 of 29 QC Report for Work Order (WO) -23H1109 Analyte % Rec RPD Limits RPD Max Result Source Cone Spk Value MRL DF Blank -EPA 8260D QC Sample ID: BXH0577-BLK1 Batch: BXH0577 Date Prepared: 08/11/2023 Date Analyzed: 08/11/2023 Units: ug/L Carbon Tetrachloride ND 1.0 1.00 Chloroform ND 1.0 1.00 Chloromethane ND 1.0 1.00 Methylene Chloride ND 1.0 1.00 QC Sample ID: BXH0692-BLK1 Batch: BXH0692 Date Prepared: 08/15/2023 Date Analyzed: 08/15/2023 Units: ug/L Carbon Tetrachloride ND 1.0 1.00 Chloroform ND 1.0 1.00 Chloromethane ND 1.0 1.00 Methylene Chloride ND 1.0 1.00 QC Sample ID: BXH0692-BLK2 Batch: BXH0692 Date Prepared: 08/15/2023 Date Analyzed: 08/15/2023 Units: ug/L Carbon Tetrachloride ND 1.0 1.00 Chloroform ND 1.0 1.00 Chloromethane ND 1.0 1.00 Methylene Chloride ND 1.0 1.00 LCS -EPA 8260D QC Sample ID: BXH0577-BS1 Batch: BXH0577 Date Prepared: 08/11/2023 Date Analyzed: 08/11/2023 Units: ug/L Carbon Tetrachloride 116 70 -130 11.6 10.0 1.0 1.00 Chloroform 119 70 -130 11.9 10.0 1.0 1.00 Chloromethane 105 70 -130 10.5 10.0 1.0 1.00 Methylene Chloride 118 70 -130 11.8 10.0 1.0 1.00 QC Sample ID: BXH0692-BS 1 Batch: BXH0692 Date Prepared: 08/15/2023 Date Analyzed: 08/15/2023 Units: ug/L Carbon Tetrachloride 100 70-130 10.0 10,0 1.0 1.00 Chloroform 108 70 -130 10.8 10.0 1.0 1.00 Chloromethane 77.8 70 -130 7.78 10.0 1.0 1.00 Methylene Chloride 109 70 -130 10.9 10.0 1.0 1.00 Matrix Spike -EPA 8260D QC Sample ID: BXH0577-MS1 Batch: BXH0577 QC Source Sample: 23Hl 109-01 Date Prepared: 08/11/2023 Date Analyzed: 08/11/2023 Units: ug/L Carbon Tetrachloride 109 70 -130 54.6 ND 50.0 5.0 1.00 Chloroform 114 70 -130 57.2 ND 50.0 5.0 1.00 Chloromethane 82.0 70 -130 41.0 ND 50.0 5.0 1.00 Methylene Chloride 114 70 -130 56.8 ND 50.0 5.0 1.00 QC Sample ID: BXH0692-MS1 Batch: BXH0692 QC Source Sample: XXXXXXX-XX Date Prepared: 08/15/2023 Date Analyzed: 08/15/2023 Units: ug/L Carbon Tetrachloride 104 70-130 2600 ND 2500 250 1.00 Chloroform 112 70-130 2800 ND 2500 250 1.00 Chloromethane 80.0 70 -130 2000 ND 2500 250 1.00 Methylene Chloride 118 70 -130 2960 ND 2500 250 1.00 Matrix Spike Dup -EPA 8260D QC Sample ID: BXH0577-MSD1 Batch: BXH0577 QC Source Sample: 23Hl 109-01 Date Prepared: 08/11/2023 Date Analyzed: 08/11/2023 Units: ug/L Carbon Tetrachloride 104 5.26 70-130 20 51.8 ND 50.0 5.0 1.00 Chloroform 105 8.67 70-130 20 52.4 ND 50.0 5.0 1.00 CtFWO#: 23H1109 www.ChemtechFord.com Page 24 of 29 Analyte QC Sample ID: BXH0577-MSD1 Date Prepared: 08/11/2023 Chloromethane Methylene Chloride QC Sample ID: BXH0692-MSD1 Date Prepared: 08/15/2023 Carbon Tetrachloride Chloroform Chloromethane Methylene Chloride CtF WO#: 23H1109 www.ChemtechFord.com QC Report for Work Order (WO) -23H1109 %Rec RPD Limits RPD Max Result Source Cone Matrix Spike Dup -EPA 8260D (cont.) Batch: BXH0577 QC Source Sample: 23Hll09-0l Date Analyzed: 08/11 /2023 Units: ug/L 74.8 9.18 70-130 20 37.4 ND 104 8.43 70-130 20 52.2 ND Batch: BXH0692 QC Source Sample: XXXXXXX-XX Date Analyzed: 08/15/2023 Units: ug/L 100 3.33 70-130 20 2510 ND 109 2.44 70-130 20 2730 ND 78.2 2.28 70 -130 20 1960 ND 113 4.57 70 -130 20 2830 ND Spk Value MRL DF 50.0 5.0 1.00 50.0 5.0 1.00 2500 250 1.00 2500 250 1.00 2500 250 1.00 2500 250 1.00 Page 25 of 29 Surrogates Report for Work Order (WO) -23H1109 QCID Analyte BXH0577-BLK1 1,2-Dichloroethane-d4 BXH0577-BLK1 4-Bromofluorobenzene BXH0577-BLK1 Toluene-dB BXH0692-BLK1 1,2-Dichloroethane-d4 BXH0692-BLK2 1,2-Dichloroethane-d4 BXH0692-BLK1 4-Bromoftuorobenzene BXH0692-BLK2 4-Bromofluorobenzene BXH0692-BLK2 Toluene-dB BXH0692-BLK1 Toluene-dB BXH0577-BS 1 1,2-Dichloroethane-d4 BXH0577-BS1 4-Bromofluorobenzene BXH0577-BS 1 Toluene-dB BXH0692-BS 1 1 ,2-Dichloroethane-d4 BXH0692-BS1 4-Bromofluorobenzene BXH0692-BS1 Toluene-dB BXH0577-MS1 1,2-Dichloroethane-d4 BXH0577-MS1 4-Bromofluorobenzene BXH0577-MS1 Toluene-dB BXH0692-MS1 1 ,2-Dichloroethane-d4 BXH0692-MS1 4-Bromofluorobenzene BXH0692-MS1 Toluene-dB BXH0577-MSD1 1,2-Dichloroethane-d4 BXH0577-MSD1 4-Bromofluorobenzene BXH0577-MSD1 Toluene-dB BXH0692-MSD1 1,2-Dichloroethane-d4 BXH0692-MSD1 4-Bromofluorobenzene BXH0692-MSD1 Toluene-dB CtF WO#: 23H1109 www.ChemtechFord.com % Rec LCL UCL Result Blank -EPA 8260D 103 64.2 126 10.3 105 71.4 125 10.5 100 63.2 129 10.0 104 64.2 126 10.4 98.9 64.2 126 9.89 100 71.4 125 10.0 104 71.4 125 10.4 101 63.2 129 10.1 98.6 63.2 129 9.86 LCS -EPA 8260D 102 64.2 126 10.2 103 71.4 125 10.3 100 63.2 129 10.0 102 64.2 126 10.2 100 71.4 125 10.0 103 63.2 129 10.3 Matrix Spike -EPA 8260D 104 64.2 126 52.1 102 71.4 125 51.0 101 63.2 129 50.6 105 64.2 126 2630 101 71.4 125 2520 102 63.2 129 2550 Matrix Spike Dup -EPA 82600 102 64.2 126 51.0 98.2 71.4 125 49.1 102 63.2 129 51.2 105 64.2 126 2620 99.2 71.4 125 2480 101 63.2 129 2530 Spk Value Batch OF 10.0 BXH0577 1.00 10.0 BXH0577 1.00 10.0 BXH0577 1.00 10.0 BXH0692 1.00 10.0 BXH0692 1.00 10.0 BXH0692 1.00 10.0 BXH0692 1.00 10.0 BXH0692 1.00 10.0 BXH0692 1.00 10.0 BXH0577 1.00 10.0 BXH0577 1.00 10.0 BXH0577 1.00 10.0 BXH0692 1.00 10.0 BXH0692 1.00 10.0 BXH0692 1.00 50.0 BXH0577 1.00 50.0 BXH0577 1.00 50.0 BXH0577 1.00 2500 BXH0692 1.00 2500 BXH0692 1.00 2500 BXH0692 1.00 50.0 BXH0577 1.00 50.0 BXH0577 1.00 50.0 BXH0577 1.00 2500 BXH0692 1.00 2500 BXH0692 1.00 2500 BXH0692 1.00 Page 26 of 29 Surrogate Recoveries (Field Samples) Lab Number Analyte 8260 Low Level Volatiles 23H1109-01 1,2-Dichloroethane-d4 23H1109-01 4-Bromofluorobenzene 23H1109-01 Toluene-dB 8260 Low Level Volatiles 23H1109-02 1,2-Dichloroethane-d4 23H1109-02 23H1109-02 4-Bromofluorobenzene Toluene-dB 8260 Low Level Volatiles 23H1109-03 Toluene-dB 23H1109-03 4-Bromofluorobenzene 23H1109-03 1,2-Dichloroethane-d4 8260 Low Level Volatiles 23H1109-04 1,2-Dichloroethane-d4 23H1109-04 Toluene-dB 23H1109-04 4-Bromofluorobenzene 8260 Low Level Volatiles 23H1109-05 Toluene-dB 23H1109-05 4-Bromofluorobenzene 23H1109-05 1,2-Dichloroethane-d4 8260 Low Level Volatiles 23H1109-06 Toluene-dB 23H1109-06 1 ,2-Dichloroethane-d4 23H1109-06 4-Bromofluorobenzene 8260 Low Level Volatiles 23H1109-07 Toluene-dB 23H1109-07 4-Bromofluorobenzene 23H1109-07 1,2-Dichloroethane-d4 8260 Low Level Volatiles 23H1109-08 1,2-Dichloroethane-d4 23H1109-08 4-Bromofluorobenzene CtF WO#: 23H1109 www.ChemtechFord.com Result 10.1 10.2 10.0 10.3 9.90 10.0 9.95 9.89 10.3 10.3 10.1 10.2 10.0 10.3 10.4 9.99 10.3 9.92 9.76 9.86 10.3 10.4 10.1 Spklvl 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 %Rec 101 102 100 103 99.0 100 99.5 98.9 103 103 101 102 100 103 104 99.9 103 99.2 97.6 98.6 103 104 101 LCL UCL Qualifier 64.2 126 71.4 125 63.2 129 64.2 126 71.4 125 63.2 129 63.2 129 71.4 125 64.2 126 64.2 126 63.2 129 71.4 125 63.2 129 71.4 125 64.2 126 63.2 129 64.2 126 71.4 125 63.2 129 71.4 125 64.2 126 64.2 126 71.4 125 Page 27 of 29 23H1109-08 Toluene-dB 8260 Low Level Volatiles 23H1109-09 Toluene-dB 23H1109-09 4-8romofluorobenzene 23H1109-09 1 ,2-Dichloroethane-d4 8260 Low Level Volatiles 23H1109-10 1 ,2-Dichloroethane-d4 23H1109-10 4-8 romofl uorobenzene 23H1109-10 Toluene-dB 8260 Low Level Volatiles 23H 1109-11 4-8 romofl uorobenzene 23H1109-11 23H1109-11 1 ,2-Dichloroethane-d4 Toluene-dB 8260 Low Level Volatiles 23H 1109-12 Toluene-dB 23H1109-12 23H1109-12 1,2-Dichloroethane-d4 4-8romofluorobenzene 8260 Low Level Volatiles 23H 1109-13 1 ,2-Dichloroethane-d4 23H1109-13 23H1109-13 4-8romofluorobenzene Toluene-dB 8260 Low Level Volatiles 23H 1109-14 1,2-Dichloroethane-d4 23H1109-14 23H1109-14 Toluene-dB 4-8romofluorobenzene 8260 Low Level Volatiles 23H 1109-15 1,2-Dichloroethane-d4 23H1109-15 23H1109-15 4-8romofluorobenzene Toluene-dB 8260 Low Level Volatiles 23H 1109-16 4-8romofluorobenzene 23H1109-16 23H1109-16 1 ,2-Dichloroethane-d4 Toluene-dB CtF WO#: 23H1109 www.ChemtechFord.com 9.95 9.94 9.96 10.7 10.9 10.1 10.0 10.1 10.6 10.1 10.0 11.0 10.0 10.5 9.94 10.0 11.0 10.0 10.1 11.0 9.89 10.0 10.1 10.4 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 99.5 99.4 99.6 107 109 101 100 101 106 101 100 110 100 105 99.4 100 110 100 101 110 98.9 100 101 104 100 63.2 129 63.2 129 71.4 125 64.2 126 64.2 126 71.4 125 63 .2 129 71.4 125 64.2 126 63.2 129 63.2 129 64.2 126 71.4 125 64.2 126 71.4 125 63.2 129 64.2 126 63.2 129 71.4 125 64.2 126 71.4 125 63.2 129 71.4 125 64.2 126 63.2 129 Page 28 of 29 8260 Low Level Volatiles 23H1109-17 Toluene-dB 23H1109-17 23H1109-17 1,2-Dichloroethane-d4 4-Bromofluorobenzene CtF WO#: 23H1109 www.ChemtechFord.com 9.96 10.3 10.0 10.0 10.0 10.0 99.6 103 100 63.2 129 64.2 126 71.4 125 Page 29 of 29 9632 South 500 West CHEMTECH·FORD LABOR,\TO'~li:S 9/28/2023 Work Order: 23 I 1200 Project: 3rd Quarter Chloroform 2023 Energy Fuels Resources, Inc. Attn: Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Client Service Contact: 801 .262.7299 The analyses presented on this report were performed in accordance with the National Environmental Laboratory Accreditation Program (NELAP) unless noted in the comments, flags, or case narrative. If the report is to be used for regulatory compliance, it should be presented in its entirety, and not be altered. Approved By: Melissa Connolly, Project Manager Sandy. Utah 84070 801.262. 7299 Main 866.792.0093 Fax Serving the lntermountain West since 1953 www.ChemtechFord.com Page 1 of 44 Chemtech-Ford Laboratories Serving the lntermountain West Since 1953 CHEMTECH-FORD L.li!()lt,1 f 01.!ll-5, 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Page 2 of44 Energy Fuels Resources, Inc. Project: 3rd Quarter Chloroform 2023 Project Manager: Tanner Holliday Laboratory ID 2311200-01 2311200-02 2311200-03 2311200-04 2311200-05 2311200-06 2311200-07 2311200-08 2311200-09 2311200-10 2311200-11 2311200-12 2311200-13 2311200-14 2311200-15 2311200-16 2311200-17 2311200-18 2311200-19 2311200-20 2311200-21 2311200-22 2311200-23 2311200-24 2311200-25 2311200-26 2311200-27 Sample Name TW4-36R_09122023 TW4-03_09132023 TW4-42_09132023 TW4-12_09132023 TW4-28_09132023 TW4-32_09132023 TW4-13_09132023 TW4-36_09132023 TW4-14_09132023 TW4-31_09132023 TW4-43_09132023 TW4-35_09132023 TW4-23_09132023 TW4-38_09132023 TW4-30R_09132023 TW4-34_09142023 TW4-06_09142023 TW4-27_09142023 TW4-09_09142023 TW4-05_09142023 TW4-08_09142023 TW4-30_09142023 TW4-33_09142023 TW4-18_09142023 TW4-65_09132023 TW4-70_09142023 Trip Blank Sample Preparation Work Order Report Narrative All samples were prepared within method specified holding times. No preparation issues were noted. Method Blanks All blank values were within method acceptance criteria. No blank values exceeded the minimum reporting limit for any analysis in this work order. Laboratory Control Samples All laboratory control samples were within method acceptance criteria. Method Spikes All method spike recoveries were within method acceptance criteria, except as noted by qualifying flags. Method Spike Duplicates All method spike duplicates were within method acceptance criteria, except as noted by qualifying flags. Corrective Actions There are no corrective actions associated with this work order. Page 3 of 44 I CHEMTECH-FORD !...A.B0AATOR1ES Chemtech-Ford Laboratories Serving the lntermountain West Since 1953 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Certificate of Analysis Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Report Footnotes Abbreviations ND= Not detected at the corresponding Minimum Reporting Limit (MRL). PO#: Receipt: 9/15/23 10:35@ o.o ·c Date Reported: 9/28/2023 Project Name: 3rd Quarter Chloroform 2023 I mg/L = one milligram per liter or I mg/kg= one milligram per kilogram = 1 part per million. I ug/L = one microgram per liter or I ug/kg = one microgram per kilogram= 1 part per billion. I ng/L = one nanogram per liter or I ng/kg = one nanogram per kilogram = I part per trillion. Proiect Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com CtF WO#: 2311200 Page 31 of 44 American West Analytical Laboratories 463 W 3600 S Salt Lake City, UT 84115 Phone# (801) 263-<!686 Toll Free# (BBB) 263-8686 1~~ Fax# (801) 263-8687 Email awal@awal-labs com www awal-labs.com Client: Energy Fuela Resources, Inc_ Address: 6425 S. Hwy. 191 Blandtng, UT 84511 Contact: Tanner Holliday Phone#: (4351678-2221 Cell#: Email: tboWd•y(~eneraftlela.com; KWelnel'"~ener,eyfllela:.com Project Name: 3rd Quarter Chloroform 2023 Projec\ #: PO#: Sampler Name: Tanner Holliday f<~ I /2 0 Q Date Sample ID: Sampled TW4-36R_09122023 9/12/2023 TW4-03_09132023 9/13/2023 TW4-42_09132023 9/13/2023 TW4-12_09132023 9/13/2023 TW4-28_09132023 9/13/2023 , TW4-32_09132023 9/13/2023 TW4-13_09132023 9/13/2023 1 TW4-36_09132023 9/13/2023 , TW4-14_09132023 9/13/2023 l TW4-31_09132023 9/13/2023 I TW4-43_09132023 9/13/2023 ! TW4-35_09132023 9/13/2023 • TW4-23_09132023 9/13/2023 Rollnqui>llodby:_.:J HrdJI/:/__ omo: sro""'"'" ~~ .,,,,, • "' A llt1"'20:13 V Tl.mo PtlntNnmr Ta,nner Hoillklav ,.,,, Rmfnquilll""I"". OMO: Skwwu,c, n ... PrlntN.l'rno: Rollnqul_, by' Dcilo: Sln"3tu.o n:,.t,o Ptl,.~no: R~b'f; 0111n: Smnnt,..ft Tim.o Pth'lt Nt1mo-: I Time Sampled 1220 655 705 715 730 735 743 750 759 806 814 822 832 Received by: Slanslura P,tnt Name: CHAIN OF CUSTODY All analysis will be conducied using NELAP 8CO'edlled me1hods end all data wrn 00 reported using AWAL's standard analyte Usta and reporting limlls (POL) unless specincally requested other.vise on Ihle Chain of Cu&tody andlor attached documentallon QC Level: I Tum Around Time: Unles& other armngemenfa have been made, sfgned reports 'MIi be emelled by 5:00 pm on 3 Standard lhe day lhey are due K Include EDD: LOCUS UPLOAD EXCEL Field Filtered For. For Compliance With: D NElAP □ RCRA □ CWA D SOWA □ ElAP / A2LA C) □ NLlAP cs' ci D Non-Compliance [;j ,::, G' b Other. 0) ~ ~ ... 0 >< C: ·c: .., 0 "' ~ .; 0 ,::, "' ::; ,::, ~ Known Hazards 0 ., I!: "' ..... :!:. • (.J C. N u & E 0 .. 0 u ~ Samele Comments .. u, I!: 5 w X X X DO NOT USE FOR QC 5 w X X X ;tJ I A /°½n 'r 5 w X X X i\J' / 2, 2.. 11 5 w X X X l ,Q) I 3, t'{ s w X X X 5 w X X X 5 w X X X 5 w X X X 5 w X X X 5 w X X X 5 w X X X 5 w X X X 5 w X X X Date: Special Instructions: 'flme: , ~ , 2YI12-<J G AWAL Lab Sample Set # Page 1 of ~ IOue Date-I Laboratory Use Only s.mp1 .. w... l,( r'r ~~- 3 Tom""'"''•• ~-c • Received Broken/Leaking (Improperly Soolodtl y N e;r:IY "'-'tad y N .. bench y N 6 Received Within Holding Times CJ N COCTepeWa. I ~ on o.-:er Pld:age Y N NA Y N NA 20 Unhr lt'on on Outer Package 3 Preeart on SamS,,a (:j y N • Unbroken on Sample 8 y N Olecn,pancies BetMen Semple y N ~ and COC Racord'I<:)_ :;:,:p 11.11\A.. cl4 __.-r/ 01110''?/6/4.~ See the Analytical Scope of Work for Reporting Limits and VOC analyte list. ;r/ 1/k" 1-f:/v-Sc.._ / :Time: Id 3:-S-Pl'fntN.AmO Rf,C:81Ved by: I Oacn: Slgna1ure UPS GROUND Tlmo.: Print Name: Recetved tiy: D:tlo: TRACKING #: 1 Z 187 Y 4Y 03 9507 0125 IS1an8'ure ;,mo PrlnfNBme: II Page 32 of 44 American West Analytical Laboratories 463 W 3600 S Salt Lake City. UT 84115 Phone# (801) 263-8686 Toll Free# (888) 263-8686 1~~ Fax# (801) 263-8687 Email awal@awal-labs com www.awal-labs.com Client: Energy Fuels Resources, Inc. Address: 6425 S. Hwy. 191 Blanding, UT 84511 Contact: Tanner Holliday Phone#: (435) 678-2221 Cell#: Email: thollidaJ(":"•~erc,ftlela.com; KW'eiael'a,eaerofue&..com Project Name: 3rd Quarter Chloroform 2023 Project#: PO#: Sampler Name Tanner Holliday 2, r /2...00 Date Samole ID: Samcled 14 I TW4-38_09132023 9/13/2023 15 • TW4-30R_09132023 9/13/2023 10 I TW4-34_09142023 9/14/2023 17 ' TW4-06_09142023 9/14/2023 18 I TW4-27_09142023 9/14/2023 ,., • TW4-09_09142023 9/14/2023 :io , TW4-05_09142023 9/14/2023 21 , TW4-08_09142023 9/14/2023 2'I ' TW4-30_09142023 9/14/2023 23 I TW4-33_09142023 9/14/2023 24 I TW4-18_09142023 9/14/2023 25 ; TW4-65_09132023 9/13/2023 20 • TW4-70_09142023 9/14/2023 'TRIP BLANK ~1 9/12/2023 Rolinqu,lhod by; ,_ .... UJ/ I OMO: '•'-~ ... ~ Q/141?,.0?a (j IT1mcr PrtntNn,uo Tftnli,o, Hotlldtw 1200 R .. nqul"'°" by: °"'"' .... ~ ... finHJ' Prln1N.lfn0: R<l/nq,•ohod ''" 0:ohll 1~ ... nmuto romr Pdnl Nome~ Roj.,...._t,yr [)ftOO' S"'Ofllluru r ..... Prlnl N.nmo1 I Time Samoled 841 1248 720 734 743 755 807 845 855 921 935 716 807 1220 Received by: 6.,,,.....ture f'rinl Nome: CHAIN OF CUSTODY All .1maty61s will be oonducted using NELAP accredited methods and all data \MN be reported using AW/IJ..'s standard enotyte 1161.6 and reporting llmils (POL) unless speciOc:ally requested olherMse on this Chain or Custody and/or attached docomentallon, QC Level: I Tum Around Time: Unless other am1ngemenls have been made, signed roports will be emailed by 5:00 pm on 3 Standard the day they aro duo X Include EDD: LOCUS UPLOAD EXCEL Field Filtered For. For Compliance With: □ NELAP □ RCRA □ CWA □ SOWA □ ELAP/A2LA C, □ NLLAP "" c:i 0 Non-Compliance ::i 0 G' D Other. "' I!! ~ ... 0 a, 11 .., 0 IO C: 0 "' :§ .. 0 0 ~ C: :ii • "' Known Hazards 0 ., ..... :t. • u 'iS. N t) & 0 E 0 tl g ., Samale Comments .. "' • 5 w X X X 5 w X X X DO NOT USE FOR QC 5 w X X X 5 w X X X 5 w X X X 5 w X X X 5 w X X X 5 w X X X 5 w X X X 5 w X X X 5 w X X X 5 w X X X 5 w X X X 3 w X Dale: Special lnstrucllons: (Tlme: / 2:,; I /20 0 AWAL Lab Sample Set # Page 2 of 2 l°ue Dato: I Laboratory Use Only SllmpallWfll•· ~ ·&-od 2 Amblonooe, 3 Tompor,>1\n (} -0 •c • RBCBlved B'°"8nll.oal<lng (lmpropertySealcd(V y N 5 ~PfONIVW C N ·-y N • R~odWilhfn ~lngll,,_ N icoct.n.,..wM 1a on~mP~ 20 011 on <Mot P"'-"'>q4'1/;1L Y N NA 3 Pf9Nn\onSamp(e y N ~) • Unbroken on Semple 6 y N Oiecrepancies Behwen Sample y N l abels and COC Racom1C) R-•~•fk ~natu, ~· -r-Y./4 _A' D>to; Cf fi S 7..z_2_ See the Analytical Scope of Work for Reporting Limits and VOC enalyte list. Print Name. 2 f Vlu-._ /-L~..._ A Time/() ,1. ) Received by: • Cale: SlonatUfe Time: PrlntNeme: Rece!Ved by: OBie Slanature Page 33 of 44 Tune Prtnt Name: . QC Report for Work Order (WO) -2311200 Analyte % Rec RPO Limits RPO Max Result Source Cone Spk Value MRL OF Blank -EPA 300.0 QC Sample ID: BXI1033-BLK1 Batch: BXI I 033 Date Prepared: 09/21/2023 Date Analyzed: 09/21/2023 Units: mg/L Chloride ND 1.00 1.00 QC Sample ID: BXI1164-BLK1 Batch: BXIll 64 Date Prepared: 09/25/2023 Date Analyzed: 09/26/2023 Units: mg/L Chloride ND 1.00 1.00 QC Sample ID: BXI1192-BLKI Batch: BXIl192 Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: mg/L Chloride ND 1.00 1.00 LCS -EPA 300.0 QC Sample ID: BXI1033-BS1 Batch: BXII 033 Date Prepared: 09/21/2023 Date Analyzed: 09/21/2023 Units: mg/L Chloride 98.5 90-110 49.2 50.0 1.00 1.00 QC Sample ID: BXIII64-BSI Batch: BXIII 64 Date Prepared: 09/25/2023 Date Analyzed: 09/26/2023 Units: mg/L Chloride 103 90-110 51.7 50.0 1.00 1.00 QC Sample ID: BXIll 92-BS 1 Batch: BXII 192 Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: mg/L Chloride 103 90 -110 51.3 50.0 1.00 1.00 Matrix Spike -EPA 300.0 QC Sample ID: BXI1033-MSI Batch: BXI1033 QC Source Sample: 23I1200-02 Date Prepared: 09/21/2023 Date Analyzed: 09/22/2023 Units: mg/L Chloride 98.9 80 -120 37.9 26.9 11.1 1.11 1.00 QC Sample ID: BXI1033-MS2 Batch: BXII 033 QC Source Sample: XXXXXXX-XX Date Prepared: 09/21/2023 Date Analyzed: 09/21/2023 Units: mg/L Chloride 101 80 -120 101 100 11 .0 1.00 QC Sample ID: BXIII64-MSI Batch: BXl1 I 64 QC Source Sample: 2311200-03 Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: mg/L Chloride 117 80 -120 33.4 20.4 11.1 1.11 1.00 QC Sample ID: BXl1164-MS2 Batch: BXI1164 QC Source Sample: XXXXXXX-XX Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: mg/L Chloride 95.7 80 -120 95.7 ND 100 11 .0 1.00 QC Sample ID: BXlll92-MSl Batch: BXl1 I 92 QC Source Sample: XXXXXXX-XX Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: mg/L Chloride 108 80 -120 121 109 11.1 1.11 1.00 QC Sample ID: BXIl192-MS2 Batch: BXIll 92 QC Source Sample: XXXXXXX-XX Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: mg/L Chloride 118 80 -120 155 142 11.1 1.11 1.00 Matrix Spike Dup -EPA 300.0 QC Sample ID: BXI1033-MSD1 Batch: BXI1033 QC Source Sample: 2311200-02 Date Prepared: 09/21/2023 Date Analyzed: 09/22/2023 Units: mg/L Chloride 102 0.900 80 -120 20 38.3 26.9 11.1 1.11 1.00 QC Sample ID: BXl1033-MSD2 Batch: BXI1033 QC Source Sample: XXXXXXX-XX Date Prepared: 09/21/2023 Date Analyzed: 09/21/2023 Units: mg/L Chloride 101 0.758 80 -120 20 101 100 11.0 1.00 CtF WO#: 2311200 www.ChemtechFord.com Page 34 of 44 QC Report for Work Order (WO) -2311200 Analyte % Rec RPD Limits RPD Max Result Source Cone QC Sample ID: BXI1164-MSDI Date Prepared: 09/25/2023 Chloride Matrix Spike Dup -EPA 300.0 (cont.) Batch: BXII I 64 QC Source Sample: 23Il200-03 Date Analyzed: 09/25/2023 Units: 122 1.55 80 -120 20 33.9 20.4 QM-12-The MSD recovery was outside acceptance limits, but passed duplicate spike acceptance criteria, The batch was accepted based on the acceptability of the MS. QC Sample ID: BXI1164-MSD2 Date Prepared: 09/25/2023 Chloride QC Sample ID: BXII192-MSDI Date Prepared: 09/25/2023 Chloride QC Sample ID: BXI1192-MSD2 Date Prepared: 09/25/2023 Chloride CtF WO#: 2311200 www.ChemtechFord.com Batch: BXI1164 QC Source Sample: XXXXX:XX-XX Date Analyzed: 09/25/2023 Units: 95.8 0.0540 80-120 20 95.8 ND Batch: BXII 192 QC Source Sample: XXXXXXX-XX Date Analyzed: 09/25/2023 Units: 106 0.180 80-120 20 120 109 Batch: BXIll 92 QC Source Sample: XXXXXXX-XX Date Analyzed: 09/25/2023 Units: 115 0.191 80-120 20 155 142 mg/L mg/L mg/L mg/L Spk Value MRL DF 11.1 1.11 1.00 100 11.0 1.00 11 .1 1.11 1.00 11.1 1.11 1.00 Page 35 of 44 QC Report for Work Order (WO) -2311200 Analyte %Rec RPD Limits RPD Max Result Source Cone Spk Value MRL DF Blank -EPA 353.2 QC Sample ID: BXI0842-BLK1 Batch: BXI0842 Date Prepared: 09/19/2023 Date Analyzed: 09/19/2023 Units: mg/L Nitrate + Nitrite, Total, as N ND 0.100 1.00 QC Sample ID: BXI0843-BLK1 Batch: BXI0843 Date Prepared: 09/19/2023 Date Analyzed: 09/19/2023 Units: mg/L Nitrate + Nitrite, Total, as N ND 0.100 1.00 QC Sample ID: BXI0931-BLK1 Batch: BXI093 l Date Prepared: 09/20/2023 Date Analyzed: 09/20/2023 Units: mg/L Nitrate + Nitrite, Total , as N ND 0.100 1.00 QC Sample ID: BXI1160-BLK1 Batch: BXI1160 Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: mg/L Nitrate + Nitrite, Total, as N ND 0.100 1.00 LCS -EPA 353.2 QC Sample ID: BXI0842-BS1 Batch: BXI0842 Date Prepared: 09/19/2023 Date Analyzed: 09/19/2023 Units: mg/L Nitrate + Nitrite, Total, as N 90.5 90-110 1.81 2.00 0.100 1.00 QC Sample ID: BXI0843-BS1 Batch: BXI0843 Date Prepared: 09/19/2023 Date Analyzed: 09/19/2023 Units: mg/L Nitrate+ Nitrite, Total, as N 94.0 90-110 1.88 2.00 0.100 1.00 QC Sample ID: BXI0931-BS1 Batch: BXI093 l Date Prepared: 09/20/2023 Date Analyzed: 09/20/2023 Units: mg/L Nitrate + Nitrite, Total, as N 104 90-110 2.09 2.00 0.100 1.00 QC Sample ID: BX11160-BS1 Batch: BXIll 60 Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: mg/L Nitrate + Nitrite, Total , as N 103 90 -110 2.06 2.00 0.100 1.00 Matrix Spike -EPA 353.2 QC Sample ID: BXI0842-MS 1 Batch: BXI0842 QC Source Sample: XXXXXXX-XX Date Prepared: 09/19/2023 Date Analyzed: 09/19/2023 Units: mg/L Nitrate + Nitrite, Total, as N 96,0 90 -110 0.960 ND 1.00 0.100 1.00 QC Sample ID: BX10842-MS2 Batch: BXI0842 QC Source Sample: 2311200-02 Date Prepared: 09/19/2023 Date Analyzed: 09/19/2023 Units: mg/L Nitrate + Nitrite, Total, as N 93.0 90-110 7.33 6.40 1.00 0.500 5.00 QC Sample ID: BXI0843-MS1 Batch: BXI0843 QC Source Sample: 23Il200-04 Date Prepared: 09/19/2023 Date Analyzed: 09/19/2023 Units: mg/L Nitrate + Nitrite, Total, as N 99.0 90-110 5.01 4.02 1.00 0.200 2.00 QC Sample ID: BXI0843-MS2 Batch: BXI0843 QC Source Sample: 2311200-05 Date Prepared: 09/19/2023 Date Analyzed: 09/19/2023 Units: mg/L Nitrate + Nitrite, Total, as N 98.0 90-110 12.5 11.5 1.00 0.500 5.00 QC Sample ID: BXI093 l-MS 1 Batch: BXI093 l QC Source Sample: 2311200-23 Date Prepared: 09/20/2023 Date Analyzed: 09/20/2023 Units: mg/L Nitrate+ Nitrite, Total, as N 126 90-110 5.45 4.19 1.00 0.200 2.00 QM-RPO -The recovery was outside acceptance limits for the MS and/or MSD. The RPO between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPO. QC Sample ID: BX11160-MS1 Batch: BXIll 60 QC Source Sample: XXXXXXX-XX Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: mg/L CtF WO#: 2311200 www.ChemtechFord.com Page 36 of 44 QC Report for Work Order (WO) -2311200 Analyte % Rec RPO Limits RPO Max Result Source Cone Matrix Spike -EPA 353.2 (cont.) QC Sample ID: BXI1160-MS1 Batch: BXIll 60 QC Source Sample: XXXXXXX-XX Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: mg/L Nitrate+ Nitrite, Total, as N 101 90-110 1.24 0.230 QC Sample ID: BXIl l 60-MS2 Batch: BXIl 160 QC Source Sample: XXXXXXX-XX Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: mg/L Nitrate + Nitrite, Total, as N 106 90 -110 3.13 2.07 Matrix Spike Dup -EPA 353.2 QC Sample ID: BXI0842-MSD1 Batch: BXI0842 QC Source Sample: XXXXXXX-XX Date Prepared: 09/19/2023 Date Analyzed: 09/19/2023 Units: mg/L Nitrate+ Nitrite, Total, as N 96.0 0.00 90 -110 20 0.960 ND QC Sample ID: BXI0842-MSD2 Batch: BXI0842 QC Source Sample: 23Il200-02 Date Prepared: 09/19/2023 Date Analyzed: 09/19/2023 Units: mg/L Nitrate + Nitrite, Total, as N 91 .0 0.273 90-110 20 7.31 6.40 QC Sample ID: BXI0843-MSD1 Batch: BXI0843 QC Source Sample: 2311200-04 Date Prepared: 09/19/2023 Date Analyzed: 09/19/2023 Units: mg/L Nitrate + Nitrite, Total, as N 109 1.98 90 -110 20 5.11 4.02 QC Sample ID: BXI0843-MSD2 Batch: BXI0843 QC Source Sample: 23Il200-05 Date Prepared: 09/19/2023 Date Analyzed: 09/19/2023 Units: mg/L Nitrate + Nitrite, Total, as N 102 0.319 90 -110 20 12.6 11.5 QC Sample ID: BXI0931-MSDI Batch: BXI0931 QC Source Sample: 2311200-23 Date Prepared: 09/20/2023 Date Analyzed: 09/20/2023 Units: mg/L Nitrate + Nitrite, Total, as N 124 0.368 90-110 20 5.43 4.19 QM-RPO -The recovery was outside acceptance limits for the MS and/or MSD. The RPO between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPO. QC Sample ID: BXI1160-MSD1 Date Prepared: 09/25/2023 Nitrate + Nitrite, Total, as N QC Sample ID: BXI1160-MSD2 Date Prepared: 09/25/2023 Nitrate + Nitrite, Total, as N CtF WO#: 2311200 www.ChemtechFord.com Batch: BXIl 160 QC Source Sample: XXXXXXX-XX Date Analyzed: 09/25/2023 Units: mg/L 99.0 1.63 90 -110 20 1.22 0.230 Batch: BXIll 60 QC Source Sample: XXXXXXX-XX Date Analyzed: 09/25/2023 Units: mg/L 99.0 2.26 90-110 20 3.06 2.07 Spk Value MRL OF 1.00 0.100 1.00 1.00 0.100 1.00 1.00 0.100 1.00 1.00 0.500 5.00 1.00 0.200 2.00 1.00 0.500 5.00 1.00 0.200 2.00 1.00 0.100 1.00 1.00 0.100 1.00 Page 37 of 44 QC Report for Work Order {WO) -2311200 Analyte % Rec RPO Limits RPO Max Result Source Cone Spk Value MRL OF Blank -EPA 8260D QC Sample ID: BXl1244-BLK1 Batch: BXl1244 Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: ug/L Carbon Tetrachloride ND 1.0 1.00 Chloroform ND 1.0 1.00 Chloromethane ND 1.0 1.00 Methylene Chloride ND 1.0 1.00 QC Sample ID: BXl1247-BLK1 Batch: BXl1247 Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: ug/L Carbon Tetrachloride ND 1.0 1.00 Chloroform ND 1.0 1.00 Chloromethane ND 1.0 1.00 Methylene Chloride ND 1.0 1.00 LCS -EPA 8260D QC Sample ID: BXl1244-BS1 Batch: BXl1244 Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: ug/L Carbon Tetrachloride 106 70-130 10.6 10.0 1.0 1.00 Chloroform 101 70 -130 10.1 10.0 1.0 1.00 Chloromethane 91.5 70 -130 9.15 10.0 1.0 1.00 Methylene Chloride 92.8 70 -130 9.28 10.0 1.0 1.00 QC Sample ID: BXl1247-BS1 Batch: BXl1247 Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: ug/L Carbon Tetrachloride 110 70 -130 11.0 10.0 1.0 1.00 Chloroform 91.5 70 -130 9.15 10.0 1.0 1.00 Chloromethane 76.3 70 -130 7.63 10.0 1.0 1.00 Methylene Chloride 86.5 70 -130 8.65 10.0 1.0 1.00 Matrix Spike -EPA 8260D QC Sample ID: BXl1244-MS1 Batch: BXl1244 QC Source Sample: 2311200-02 Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: ug/L Carbon Tetrachloride 110 70 -130 54.9 ND 50.0 5.0 1.00 Chloroform 105 70 -130 52.4 ND 50.0 5.0 1.00 Chloromethane 85.3 70 -130 42.6 ND 50.0 5.0 1.00 Methylene Chloride 96.5 70 -130 48.2 ND 50.0 5.0 1.00 QC Sample ID: BXl1247-MS1 Batch: BXl1247 QC Source Sample: XXXXXXX-XX Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: ug/L Carbon Tetrachloride 91 .3 70 -130 45.6 ND 50.0 5.0 1.00 Chloroform 85.0 70-130 42.5 ND 50.0 5.0 1.00 Chloromethane 72.6 70-130 36.3 ND 50.0 5.0 1.00 Methylene Chloride 82.4 70 -130 41.2 ND 50.0 5.0 1.00 Matrix Spike Dup -EPA 8260D QC Sample ID: BXl1244-MSD1 Batch: BXl1244 QC Source Sample: 2311200-02 Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: ug/L Carbon Tetrachloride 110 0.273 70 -130 20 55.0 ND 50.0 5.0 1.00 Chloroform 109 4.21 70 -130 20 54.6 ND 50.0 5.0 1.00 Chloromethane 101 17.2 70 -130 20 50.7 ND 50.0 5.0 1.00 Methylene Chloride 102 5.15 70 -130 20 50.8 ND 50.0 5.0 1.00 QC Sample ID: BXl1247-MSD1 Batch: BXl1247 QC Source Sample: XXXXXXX-XX Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: ug/L Carbon Tetrachloride 87.0 4.82 70 -130 20 43.5 ND 50.0 5.0 1.00 Chloroform 82.7 2.74 70 -130 20 41.4 ND 50.0 5.0 1.00 CtF WO#: 2311200 www.ChemtechFord.com Page 38 of 44 QC Report for Work Order {WO) -2311200 Analyte %Rec RPO Limits RPO Max Result Source Cone Matrix Spike Dup -EPA 8260D {cont.) QC Sample ID : BXI1247-MSD1 Batch: BXI1247 QC Source Sample: XXXXXXX-XX Date Prepared: 09/25/2023 Date Analyzed: 09/25/2023 Units: ug/L Chloromethane 68.3 6.10 70 -130 20 34.2 ND MS-Low -Estimated low due to Matrix Spike recovery. Methylene Chloride CtF WO#: 2311200 www.ChemtechFord.com 79.1 4.09 70-130 20 39.6 ND Spk Value MRL OF 50.0 5,0 1.00 50.0 5.0 1.00 Page 39 of 44 Surrogates Report for Work Order (WO) -2311200 QCID Analyte BXl1244-BLK1 1,2-Dichloroethane-d4 BXl1244-BLK1 4-Bromofluorobenzene BXl1244-BLK1 Toluene-dB BXl1247-BLK1 1 ,2-Dichloroethane-d4 BXl1247-BLK1 4-Bromofluorobenzene BXl1247-BLK1 Toluene-dB BXl1244-8S1 1,2-Dichloroethane-d4 BXl1244-8S1 4-Bromofluorobenzene BXI 1244-8S 1 Toluene-dB BXl1247-BS1 1,2-Dichloroethane-d4 BXl1247-8S1 4-Bromofluorobenzene BXl1247-BS1 Toluene-dB BXl1244-MS1 1,2-Dichloroethane-d4 BXl1244-MS1 4-Bromofluorobenzene BXI 1244-MS 1 Toluene-dB BXl1247-MS1 1,2-Dichloroethane-d4 BXl1247-MS1 4-Bromofluorobenzene BXl1247-MS1 Toluene-dB BXl1244-MSD1 1,2-Dichloroethane-d4 BXl1244-MSD1 4-Bromofluorobenzene BXl1244-MSD1 Toluene-dB BXl1247-MSD1 1,2-Dichloroethane-d4 BXl1247-MSD1 4-Bromofluorobenzene BXl1247-MSD1 Toluene-dB CtF WO#: 2311200 www.ChemtechFord.com % Rec LCL UCL Result Blank -EPA 8260D 97.5 64.2 126 9.75 89.8 71.4 125 8.98 100 63.2 129 10.0 99.7 64.2 126 9.97 94.0 71.4 125 9.40 98.0 63.2 129 9.80 LCS -EPA 8260D 98.8 64.2 126 9.88 102 71.4 125 10.2 100 63.2 129 10.0 104 64.2 126 10.4 96.7 71.4 125 9.67 100 63.2 129 10.0 Matrix Spike -EPA 8260D 98.9 64.2 126 49.4 99.2 71.4 125 49.6 100 63.2 129 50.0 98.9 64.2 126 49.4 97.6 71.4 125 48.8 100 63.2 129 50.0 Matrix Spike Dup -EPA 8260D 99.2 64.2 126 49.6 101 71.4 125 50.5 100 63.2 129 50.0 99.0 64.2 126 49.5 99.4 71.4 125 49.7 96.5 63.2 129 48.2 Spk Value Batch DF 10.0 BXl1244 1.00 10.0 BXl1244 1.00 10.0 BXl1244 1.00 10.0 BXl1247 1.00 10.0 BXl1247 1.00 10.0 BXl1247 1.00 10.0 BXl1244 1.00 10.0 BXl1244 1.00 10.0 BXl1244 1.00 10.0 BXl1247 1.00 10.0 BXl1247 1.00 10.0 BXl1247 1.00 50.0 BXl1244 1.00 50.0 BXl1244 1.00 50.0 BXl1244 1.00 50.0 BXl1247 1.00 50.0 BXl1247 1.00 50.0 BXl1247 1.00 50.0 BXl1244 1.00 50.0 BXl1244 1.00 50.0 BXl1244 1.00 50.0 BXl1247 1.00 50.0 BXl1247 1.00 50.0 BXl1247 1.00 Page 40 of 44 Surrogate Recoveries (Field Samples) LabNumber Analyte 8260 Low Level Volatiles 2311200-01 4-Bromofluorobenzene 2311200-01 Toluene-dB 2311200-01 1,2-Dichloroethane-d4 8260 Low Level Volatiles 2311200-02 1,2-Dichloroethane-d4 2311200-02 4-Bromofluorobenzene 2311200-02 Toluene-dB 8260 Low Level Volatiles 2311200-03 1,2-Dichloroethane-d4 2311200-03 2311200-03 2311200-04 2311200-04 2311200-04 2311200-05 2311200-05 2311200-05 2311200-06 2311200-06 2311200-06 2311200-07 2311200-07 2311200-07 4-Bromofluorobenzene Toluene-dB 8260 Low Level Volatiles 4-Bromofluorobenzene Toluene-dB 1,2-Dichloroethane-d4 8260 Low Level Volatiles 4-Bromofluorobenzene Toluene-dB 1,2-Dichloroethane-d4 8260 Low Level Volatiles 1,2-Dichloroethane-d4 4-Bromofluorobenzene Toluene-dB 8260 Low Level Volatiles Toluene-dB 4-Bromofluorobenzene 1,2-Dichloroethane-d4 8260 Low Level Volatiles 2311200-08 4-Bromofluorobenzene 2311200-08 Toluene-dB CtF WO#: 2311200 www.ChemtechFord.com Result 8.91 10.1 9.94 10.1 8.86 10.2 10.6 9.62 9.98 9.67 10.0 10.5 9.43 10.0 10.3 10.5 9.73 10.0 10.0 9.60 10.3 9.70 9.92 SpkLvl 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 %Rec 89.1 101 99.4 101 88.6 102 106 96.2 99.8 96.7 100 105 94.3 100 103 105 97.3 100 100 96.0 103 97.0 99.2 LCL UCL Qualifier 71.4 125 63.2 129 64.2 126 64.2 126 71.4 125 63.2 129 64.2 126 71.4 125 63.2 129 71.4 125 63.2 129 64.2 126 71.4 125 63.2 129 64.2 126 64.2 126 71.4 125 63.2 129 63.2 129 71.4 125 64.2 126 71.4 125 63.2 129 Page 41 of 44 2311200-08 1,2-Dichloroethane-d4 8260 Low Level Volatiles 2311200-09 Toluene-dB 2311200-09 2311200-09 1,2-Dichloroethane-d4 4-Bromofluorobenzene 8260 Low Level Volatiles 2311200-10 4-Bromofluorobenzene 2311200-10 2311200-10 Toluene-dB 1,2-Dichloroethane-d4 8260 Low Level Volatiles 2311200-11 1 ,2-Dichloroethane-d4 2311200-11 2311200-11 4-Bromofluorobenzene Toluene-dB 8260 Low Level Volatiles 2311200-12 Toluene-dB 2311200-12 2311200-12 1,2-Dichloroethane-d4 4-Bromofluorobenzene 8260 Low Level Volatiles 2311200-13 1 ,2-Dichloroethane-d4 2311200-13 2311200-13 4-Bromofluorobenzene Toluene-dB 8260 Low Level Volatiles 2311200-14 Toluene-dB 2311200-14 2311200-14 1,2-Dichloroethane-d4 4-Bromofluorobenzene 8260 Low Level Volatiles 2311200-15 1,2-Dichloroethane-d4 2311200-15 2311200-15 4-Bromofluorobenzene Toluene-dB 8260 Low Level Volatiles 2311200-16 1,2-Dichloroethane-d4 2311200-16 2311200-16 4-Bromofluorobenzene Toluene-dB CtF WO#: 2311200 www.ChemtechFord.com 10.5 10.0 10.5 9.70 9.54 10.0 11.0 10.7 9.66 10.0 10.0 10.5 9.53 10.7 9.44 10.2 10.0 10.4 9.55 10.4 9.70 9.98 9.89 8.60 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 105 100 105 97.0 95.4 100 110 107 96.6 100 100 105 95.3 107 94.4 102 100 104 95.5 104 97.0 99.8 98.9 86.0 100 64.2 126 63.2 129 64.2 126 71.4 125 71.4 125 63.2 129 64.2 126 64.2 126 71.4 125 63.2 129 63.2 129 64.2 126 71.4 125 64.2 126 71.4 125 63.2 129 63.2 129 64.2 126 71.4 125 64.2 126 71.4 125 63.2 129 64.2 126 71.4 125 63.2 129 Page 42 of 44 8260 Low Level Volatiles 2311200-17 1,2-Dichloroethane-d4 2311200-17 2311200-17 4-Bromofluorobenzene Toluene-dB 8260 Low Level Volatiles 2311200-18 1 ,2-Dichloroethane-d4 2311200-18 2311200-18 Toluene-dB 4-Bromofluorobenzene 8260 Low Level Volatiles 2311200-19 Toluene-dB 2311200-19 2311200-19 2311200-20 2311200-20 2311200-20 2311200-21 2311200-21 2311200-21 2311200-22 2311200-22 2311200-22 1,2-Dichloroethane-d4 4-Bromofluorobenzene 8260 Low Level Volatiles Toluene-dB 4-Bromofluorobenzene 1,2-Dichloroethane-d4 8260 Low Level Volatiles 4-Bromofluorobenzene Toluene-dB 1,2-Dichloroethane-d4 8260 Low Level Volatiles 1,2-Dichloroethane-d4 4-Bromofluorobenzene Toluene-dB 8260 Low Level Volatiles 2311200-23 1,2-Dichloroethane-d4 2311200-23 2311200-23 4-Bromofluorobenzene Toluene-dB 8260 Low Level Volatiles 2311200-24 4-Bromofluorobenzene 2311200-24 2311200-24 1,2-Dichloroethane-d4 Toluene-dB 8260 Low Level Volatiles CtF WO#: 2311200 www.ChemtechFord.com 10.1 8.92 10.0 10.1 10.3 8.85 10.2 10.1 8.74 10.0 8.77 9.97 8.56 10.0 9.73 9.93 8.46 10.2 9.96 8.49 10.0 8.58 9.97 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 101 89.2 100 101 103 88.5 102 101 87.4 100 87.7 99.7 85.6 100 97.3 99.3 84.6 102 99.6 84.9 100 85.8 99.7 100 64.2 126 71.4 125 63.2 129 64.2 126 63.2 129 71.4 125 63.2 129 64.2 126 71.4 125 63.2 129 71.4 125 64.2 126 71.4 125 63.2 129 64.2 126 64.2 126 71.4 125 63.2 129 64.2 126 71.4 125 63.2 129 71.4 125 64.2 126 63.2 129 Page 43 of 44 2311200-25 Toluene-dB 2311200-25 4-Bromofluorobenzene 2311200-25 1 ,2-Dichloroethane-d4 8260 Low Level Volatiles 2311200-26 1,2-Dichloroethane-d4 2311200-26 4-Bromofluorobenzene 2311200-26 Toluene-dB 8260 Low Level Volatiles 2311200-27 4-Bromofluorobenzene 2311200-27 2311200-27 Toluene-dB 1,2-Dichloroethane-d4 CtF WO#: 2311200 www.ChemtechFord.com 10.2 8.78 9.87 9.89 8.58 10.0 8.69 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 102 87.8 98.7 98.9 85.8 100 86.9 100 100 63.2 129 71.4 125 64.2 126 64.2 126 71.4 125 63.2 129 71.4 125 63.2 129 64.2 126 Page 44 of 44 9632 South 500 West CHEMTECH-FORD 1 • .\00~/\TO~lfS 10/11/2023 Work Order: 2312285 Project: 3rd Quarter Chloroform 2023 Energy Fuels Resources, Inc. Attn: Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Client Service Contact: 801.262.7299 The analyses presented on this report were performed in accordance with the National Environmental Laboratory Accreditation Program (NELAP) unless noted in the comments, flags, or case narrative. If the report is to be used for regulatory compliance, it should be presented in its entirety, and not be altered. Approved By: Melissa Connolly, Project Manager Sandy, Utah 84070 801 .262. 7299 Main 866.792.0093 Fax Serving the lntermountain West since 1953 www.ChemtechFord.com Page 1 of 19 I CHEMTECH-FORD LABORATORIES Chemtech-Ford Laboratories Serving the lntermountain West Since 1953 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Energy Fuels Resources, Inc. Project: 3rd Quarter Chloroform 2023 Project Manager: Tanner Holliday Laboratory ID 2312285-01 2312285-02 2312285-03 2312285-04 2312285-05 2312285-06 2312285-07 2312285-08 Sample Name MW-32_09262023 TW4-16_09272023 TW4-10_09272023 TW4-29_09272023 TW4-26_09272023 TW4-07_09272023 TW4-75 _09262023 Trip Blank Sample Preparation Work Order Report Narrative All samples were prepared within method specified holding times. No preparation issues were noted. Method Blanks All blank values were within method acceptance criteria. No blank values exceeded the minimum reporting limit for any analysis in this work order. Laboratory Control Samples All laboratory control samples were within method acceptance criteria, except as noted by qualifying flags. Batch BXJ0384, which contains sample 2312285-01, had low LCS recoveries for Chloromethane. It is important to note that certain flags on an individual analyte do not constitute failure of the method as a whole. EPA methodologies recognize that it may not be possible for every compound to meet all recovery or percent difference criteria. The batch passed required method criteria for these analytes. Method Spikes All method spike recoveries were within method acceptance criteria, except as noted by qualifying flags. Method Spike Duplicates All method spike duplicates were within method acceptance criteria, except as noted by qualifying flags. Corrective Actions There are no corrective actions associated with this work order. Page 2 of 19 CHEMTECH-FORD t.AB0FIAf0RIES Chemtech-Ford Laboratories Serving the lntermountain West Since 1953 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Certificate of Analysis Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Report Footnotes Abbreviations ND= Not detected at the corresponding Minimum Reporting Limit (MRL). PO#: Receipt: 9/28/23 11 :15@ -0.4 ·c Date Reported: 10/11/2023 Project Name: 3rd Quarter Chloroform 2023 1 mg/L = one milligram per liter or 1 mg/kg= one milligram per kilogram = 1 part per million. 1 ug/L = one microgram per liter or I ug/kg = one microgram per kilogram= 1 part per billion. 1 ng/L = one nanogram per liter or I ng/kg = one nanogram per kilogram = 1 part per trillion. Flag Descriptions J-LOW-C = Estimated low due to low recovery of CCV J-LOW-L = Estimated low due to low recovery ofLCS Project Name: 3rd Quarter Chloroform 2023 www.ChemtechFord.com CtF WO#: 2312285 Page 11 of 19 IQ I I 12. ! I 13 American West Analytical Laboratories 463 W 3600 S Sall Lake Cijy, UT 84115 Phone# (801 l 263-8686 Toll Fr8€ # (888) 263-8686 L~~ Fax,# (801) 263-8687 Email awal@awal.labs.com www.awal-labs.com Client: Energy Fuela Resources, Inc. Address: 6425 8. Hwy. 191 Blanding, UT 84511 Conlacl: Tanner Holliday Phone#: (4351678-2221 Cell #: Emai: thoW4a:,(a,-•ofllela.com; KWelneYa,-erofllela.com Project Name: 3rd Quarter Chloroform 2023 Project#: PO#: Sampler Name: Tanner Holliday Date Sample ID: Sampled MW-32_09262023 9/26/2023 TW4-16_09272023 9/27/2023 TW4-10_09272023 9/27/2023 TW4-29 _09272023 9/27/2023 TW4-26_09272023 9/27/2023 TW4-07_09272023 9/27/2023 TW4-75_09262023 9/26/2023 TREIPBLAJIK 9/26/2023 IROlinqUlehedby:_:). J,J._,// :L OCl'le: l•"'"lllwo In .I ■ 11'. 9/27/202 v Tlmo ~nnt Nnmo: T-~ldo ""' Rallnqulshed by: Oa1e: Sk1na1ura ·nme: Print Name: RaillnqulShecl by: Date: S!analuro ITime: Pnnt Nam•. ROllnqulohed bye Date: Sinnetura Time Print Name: Time Sampled 1130 630 638 648 658 706 1130 1130 Rooa,v .. by. 1 .... ~ ... I CHAIN OF CUSTODY 13:r "l.2 85 All enal)'Bls ~I be condud.ed U&lng NELAP eecredltad methods and au date will be reported using AWAL's standard anatyte nets and reporting ffmits (POL) Ines& epedflcally requested olhc!ttwl&e on thh~ Chain or Custody and/or ettac:hed documentl!ltlon AWAL Lab Sample Set# Pege 1 of QC Leval: I Tum Around Time: Unlesg other arrangements have been made, 'Due Date; stgned reports ~II be emalled by 5:00 pm on 3 Standard the day lhey are due K Include EDD: Laboratory Use Only LOCUS UPLOAD EXCEL Samplaa We,e: Field Filtered For. I Shipped or hand -- 2 Ambient or ChlRad For Compliance With: -~-c □ NELAP 3 Tempo,att,,9 □ RCRA □ CWA • Received 8rokann..eaklng □ SOWA (lmprnparty S .. led) □ El.AP / A2LA y N 0 □ NLL.AP ~ 0 □ Non-Compliance 5 Propar1y Prooerved f;i 0 G' □ Other. y N O') Ched<ad at bench I!! X !!l. .. 0 I!? 'E I'> 0 IO y N 0 "' 3 ~ fil 0 ~ Known Hazards 8 Received Within "' ., ...... ~ • Holdlng Tlmes Q. s u & ~ y N '6 0 g Samole Comments .. Cl) II: 5 w X X X 5 w X X X COCTapeWm: 5 w X X X a1-oz;, W(3) l'.$\4 61-61 N 11' 'l.C> f\ f' ,1,oq ·-- NA 5 w X X X Sample RHcfpt Conditions: %~e<t ContJiners ZC ody Seats Present :bg• ( ) Headspace Present (VOC) NA s w X X X ~ liJ'i'r1ers h,t.ic-1 %Cln,;h/ded ( ) Temperah.lre Blank 5 w X X X OC and lab<!ls Match ~ Complele "'1teceived within Hold ~ce,uod on ke t lt rH S,11mple Volume Checked by: t//) NA 5 w X X X J w X y N NA B.._,Samplo Labels and COC Reoon:t? y N I/ ~ / ./ d"/ Date: q.11 ') :r;., Special Instructions: o>n .. N~-,--rAI-U(S n limo· I l I <; R"P"'ed by-OMo See the Analytical Scope of Work for Reporting Limits and voe SllrHIMure analyte list. [Time: Pri_o:tN.am11t: Received by. Oe1e: Slnnalun! nma: \N~ Print Nama: Received by: Data: ---• • 9'411 •••I •I •••• •---• • • •• ....... ,- mm• fZ lff7)'4 \ ll.\'Nt:\7'1721 Or1~N.8fflfll: 1 .'d 0\c':.'>:lc'S .'.!.1.'' HTD.Jc.' Page 12 of 19 I Analyte QC Sample ID: BXJ0240-BLK1 Date Prepared: 10/05/2023 Chloride QC Sample ID: BXJ0240-BS1 Date Prepared: 10/05/2023 Chloride QC Sample ID : BXJ0240-MS1 Date Prepared: l 0/05/2023 Chloride QC Sample ID: BXJ0240-MS2 Date Prepared: 10/05/2023 Chloride QC Sample ID: BXJ0240-MSDI Date Prepared: 10/05/2023 Chloride QC Sample ID: BXJ0240-MSD2 Date Prepared: 10/05/2023 Chloride CtF WO#: 2312285 www.ChemtechFord.com QC Report for Work Order (WO) -2312285 %Rec RPD Limits RPD Max Result Source Cone Blank -EPA 300.0 Batch: BXJ0240 Date Analyzed: 10/05/2023 Units: mg/L ND LCS -EPA 300.0 Batch: BXJ0240 Date Analyzed: 10/05/2023 Units: mg/L 96.7 90-110 48.4 Matrix Spike -EPA 300.0 Batch: BXJ0240 QC Source Sample: 2312285-01 Date Analyzed: 10/05/2023 Units: mg/L 99.9 80 -120 48.6 37.5 Batch: BXJ0240 QC Source Sample: XXXXXXX-XX Date Analyzed: 10/05/2023 Units: mg/L 98.2 80 -120 61.0 50.1 Matrix Spike Dup -EPA 300.0 Batch: BXJ0240 QC Source Sample: 2312285-01 Date Analyzed: 10/05/2023 Units: mg/L 100 0.121 80 -120 20 48.7 37.5 Batch: BXJ0240 QC Source Sample: XXXXXXX-XX Date Analyzed: 10/05/2023 Units: mg/L 98.4 0.0412 80 -120 20 61 .0 50.1 Spk Value MRL DF 1.00 1.00 50.0 1.00 1.00 11.1 1.11 1.00 11.1 1.11 1.00 11.1 1.11 1.00 11.1 1.11 1.00 Page 13 of 19 QC Report for Work Order (WO) -2312285 Analyte % Rec RPD Limits RPD Max Result Source Cone Blank -EPA 353.2 QC Sample ID: BXJ0055-BLK1 Batch: BXJ0055 Date Prepared: 10/03/2023 Date Analyzed: 10/03/2023 Units: mg/L Nitrate + Nitrite, Total, as N ND LCS -EPA 353.2 QC Sample ID: BXJ0055-BSI Batch: BXJ0055 Date Prepared: 10/03/2023 Date Analyzed: I 0/03/2023 Units: mg/L Nitrate + Nitrite, Total, as N 98.5 90-110 1.97 Matrix Spike -EPA 353.2 QC Sample ID: BXJ0055-MSI Batch: BXJ0055 QC Source Sample: XXXXXXX-XX Date Prepared: 10/03/2023 Date Analyzed: 10/03/2023 Units: mg/L Nitrate + Nitrite, Total, as N 116 90 -110 6.34 5.18 QM-4X -The spike recovery was outside of QC acceptance limits for the MS and/or MSD due to analyte concentration at 4 times or greater the spike concentration. The QC batch was accepted based on LCS and/or LCSD recoveries within the acceptance limits. QC Sample ID: BXJ0055-MS2 Batch: BXJ0055 QC Source Sample: 2312285-01 Date Prepared: 10/03/2023 Date Analyzed: 10/03/2023 Units: Nitrate+ Nitrite, Total, as N 96.0 90-110 0.960 ND Matrix Spike Dup -EPA 353.2 QC Sample ID: BXJ0055-MSDI Batch: BXJ0055 QC Source Sample: XXXXXXX-XX Date Prepared: 10/03/2023 Date Analyzed: 10/03/2023 Units: Nitrate+ Nitrite, Total, as N 101 2.39 90-110 20 6.19 5.18 QC Sample ID: BXJ0055-MSD2 Batch: BXJ0055 QC Source Sample: 2312285-01 Date Prepared: 10/03/2023 Date Analyzed: I 0/03/2023 Units: Nitrate+ Nitrite, Total, as N 88.0 8.70 90 -110 20 0.880 ND QM-12 -The MSD recovery was outside acceptance limits, but passed duplicate spike acceptance criteria. The batch was accepted based on the acceptability of the MS. CtF WO#: 2312285 www.ChemtechFord.com mg/L mg/L mg/L Spk Value MRL DF 0.100 1.00 2.00 0.100 1.00 1.00 0.200 2.00 1.00 0.100 1.00 1.00 0.200 2.00 1.00 0.100 1.00 Page 14 of 19 QC Report for Work Order (WO) -2312285 Analyte % Rec RPO Limits RPO Max Result Source Cone Spk Value MRL OF Blank -EPA 8260D QC Sample ID: BXJ0307-BLK1 Batch: BXJ0307 Date Prepared: 10/05/2023 Date Analyzed: 10/05/2023 Units: ug/L Carbon Tetrachloride ND 1.0 1.00 Chloroform ND 1.0 1.00 Chloromethane ND 1.0 1.00 Methylene Chloride ND 1.0 1.00 QC Sample ID: BXJ0384-BLK1 Batch: BXJ0384 Date Prepared: 10/06/2023 Date Analyzed: 10/06/2023 Units: ug/L Carbon Tetrachloride ND 1.0 1.00 Chloroform ND 1.0 1.00 Chloromethane ND 1.0 1.00 Methylene Chloride ND 1.0 1.00 QC Sample ID: BXJ0465-BLK1 Batch: BXJ0465 Date Prepared: 10/09/2023 Date Analyzed: 10/09/2023 Units: ug/L Carbon Tetrachloride ND 1.0 1.00 Chloroform ND 1.0 1.00 Chloromethane ND 1.0 1.00 Methylene Chloride ND 1.0 1.00 LCS -EPA 8260D QC Sample ID: BXJ0307-BS1 Batch: BXJ0307 Date Prepared: 10/05/2023 Date Analyzed: 10/05/2023 Units: ug/L Carbon Tetrachloride 90.6 70 -130 9.06 10.0 1.0 1.00 Chloroform 92.5 70 -130 9.25 10.0 1.0 1.00 Chloromethane 84.4 70 -130 8.44 10.0 1.0 1.00 Methylene Chloride 92.5 70 -130 9.25 10.0 1.0 1.00 QC Sample ID: BXJ0384-BS1 Batch: BXJ0384 Date Prepared: 10/06/2023 Date Analyzed: 10/06/2023 Units: ug/L Carbon Tetrachloride 86.5 70 -130 8.65 10.0 1.0 1.00 Chloroform 79.8 70 -130 7.98 10.0 1.0 1.00 Chloromethane 57.7 70 -130 5.77 10.0 1.0 1.00 J-LOW-L -Estimated low due to low recovery of LCS Methylene Chloride 76.2 70 -130 7.62 10.0 1.0 1.00 QC Sample ID: BXJ0465-BS1 Batch: BXJ0465 Date Prepared: 10/09/2023 Date Analyzed: 10/09/2023 Units: ug/L Carbon Tetrachloride 103 70 -130 10.3 10.0 1.0 1.00 Chloroform 88.6 70-130 8.86 10.0 1.0 1.00 Chloromethane 85.9 70 -130 8.59 10.0 1.0 1.00 Methylene Chloride 82.8 70-130 8.28 10.0 1.0 1.00 Matrix Spike -EPA 8260D QC Sample ID: BXJ0307-MS1 Batch: BXJ0307 QC Source Sample: XXXXXXX-XX Date Prepared: 10/05/2023 Date Analyzed: 10/05/2023 Units: ug/L Carbon Tetrachloride 82.3 70-130 41.2 ND 50.0 5.0 1.00 Chloroform 89.1 70-130 44.6 ND 50.0 5.0 1.00 Chloromethane 77.6 70-130 38.8 ND 50.0 5.0 1.00 Methylene Chloride 87.9 70 -130 44.0 ND 50.0 5.0 1.00 QC Sample ID: BXJ0384-MS1 Batch: BXJ0384 QC Source Sample: 2312285-01 Date Prepared: 10/06/2023 Date Analyzed: 10/06/2023 Units: ug/L Carbon Tetrachloride 83.5 70 -130 41.8 ND 50.0 5.0 1.00 Chloroform 79.5 70 -130 39.8 ND 50.0 5.0 1.00 CtF WO#: 2312285 www.ChemtechFord.com Page 15 of 19 QC Report for Work Order (WO) -2312285 Analyte % Rec RPO Limits RPO Max Result Source Cone Matrix Spike -EPA 8260D (cont.) QC Sample ID: BXJ0384-MSI Batch: BXJ0384 QC Source Sample: 2312285-01 Date Prepared: I 0/06/2023 Date Analyzed: I 0/06/2023 Units: Chloromethane 54.6 70-130 27.3 ND QM-RPO -The recovery was outside acceptance limits for the MS and/or MSD. The RPO between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPO. Methylene Chloride 75.5 70-130 37.8 ND QC Sample ID: BXJ0465-MSI Batch: BXJ0465 QC Source Sample: XXXXXXX-XX Date Prepared: I 0/09/2023 Date Analyzed: I 0/09/2023 Units: Carbon Tetrachloride 82.0 70 -130 41.0 ND Chloroform 78.3 70-130 39.2 ND Chloromethane 54.7 70-130 27.4 ND QM-RPO -The recovery was outside acceptance limits for the MS and/or MSD. The RPO between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPO. Methylene Chloride 73.3 70 -130 36.6 ND Matrix Spike Dup -EPA 8260D QC Sample ID: BXJ0307-MSDI Batch: BXJ0307 QC Source Sample: XXXXXXX-XX Date Prepared: 10/05/2023 Date Analyzed: I 0/05/2023 Units: Carbon Tetrachloride 87.2 5.78 70-130 20 43.6 ND Chloroform 87.4 1.93 70 -130 20 43.7 ND Chloromethane 82.0 5.51 70-130 20 41 .0 ND Methylene Chloride 84.4 4.06 70 -130 20 42.2 ND QC Sample ID: BXJ0384-MSDI Batch: BXJ0384 QC Source Sample: 2312285-01 Date Prepared: 10/06/2023 Date Analyzed: I 0/06/2023 Units: Carbon Tetrachloride 81.9 1.93 70 -130 20 41.0 ND Chloroform 78.5 1.27 70 -130 20 39.2 ND Chloromethane 55.9 2.35 70 -130 20 28.0 ND QM-RPO -The recovery was outside acceptance limits for the MS and/or MSD. The RPO between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPO. Methylene Chloride 74.7 1.07 70 -130 20 37.4 ND QC Sample ID: BXJ0465-MSDI Batch: BXJ0465 QC Source Sample: XXXXXXX-XX Date Prepared: I 0/09/2023 Date Analyzed: I 0/09/2023 Units: Carbon Tetrachloride 85.1 3.71 70 -130 20 42.6 ND Chloroform 81.0 3.39 70 -130 20 40.5 ND Chloromethane 58.9 7.39 70 -130 20 29.4 ND QM-RPO -The recovery was outside acceptance limits for the MS and/or MSD . The RPO between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPO. Methylene Chloride CtF WO#: 2312285 www.ChemtechFord.com 77.3 5.31 70 -130 20 38.6 ND ug/L ug/L ug/L ug/L ug/L Spk Value MRL OF 50.0 5.0 1.00 50.0 5.0 1.00 50.0 5.0 1.00 50.0 5.0 1.00 50.0 5.0 1.00 50.0 5.0 1.00 50.0 5.0 1.00 50.0 5.0 1.00 50.0 5.0 1.00 50.0 5.0 1.00 50.0 5.0 1.00 50.0 5.0 1.00 50.0 5.0 1.00 50.0 5.0 1.00 50.0 5.0 1.00 50.0 5.0 1.00 50.0 5.0 1.00 50.0 5.0 1.00 Page 16 of 19 Surrogates Report for Work Order (WO) -2312285 QCID Analyte BXJ0307-BLK1 1,2-Dichloroethane-d4 BXJ0307-BLK1 4-Bromofluorobenzene BXJ0307-BLK1 Toluene-dB BXJ0384-BLK1 1,2-Dichloroethane-d4 BXJ0384-BLK1 4-Bromofluorobenzene BXJ0384-BLK1 Toluene-dB BXJ0465-BLK1 1,2-Dichloroethane-d4 BXJ0465-BLK1 4-Bromofluorobenzene BXJ0465-BLK1 Toluene-dB BXJ0307-BS1 1,2-Dichloroethane-d4 BXJ0307-BS1 4-Bromofluorobenzene BXJ0307-BS1 Toluene-dB BXJ0384-BS 1 1,2-Dichloroethane-d4 BXJ0384-BS 1 4-Bromofluorobenzene BXJ0384-BS 1 Toluene-dB BXJ0465-BS 1 1,2-Dichloroethane-d4 BXJ0465-BS 1 4-Bromofluorobenzene BXJ0465-BS 1 Toluene-dB BXJ0307-MS1 1,2-Dichloroethane-d4 BXJ0307-MS1 4-Bromofluorobenzene BXJ0307-MS1 Toluene-dB BXJ0384-MS 1 1,2-Dichloroethane-d4 BXJ0384-MS1 4-8 romofl uorobenzene BXJ0384-MS1 Toluene-dB BXJ0465-MS 1 1,2-Dichloroethane-d4 BXJ0465-MS 1 4-Bromofluorobenzene BXJ0465-MS 1 Toluene-dB BXJ0307-MSD1 1,2-Dichloroethane-d4 BXJ0307-MSD1 4-Bromofluorobenzene BXJ0307-MSD1 Toluene-dB BXJ0384-MSD1 1,2-Dichloroethane-d4 BXJ0384-MSD1 4-Bromofluorobenzene BXJ0384-MSD1 Toluene-dB BXJ0465-MSD1 1,2-Dichloroethane-d4 BXJ0465-MSD1 4-B romofl uorobenze ne BXJ0465-MSD1 Toluene-dB CtF WO#: 2312285 www.ChemtechFord.com % Rec LCL UCL Result Blank -EPA 8260D 105 64.2 126 10.5 102 71.4 125 10.2 100 63.2 129 10.0 94.5 64.2 126 9.45 76.4 71.4 125 7.64 100 63.2 129 10.0 94.1 64.2 126 9.41 74.2 71.4 125 7.42 100 63.2 129 10.0 LCS -EPA 8260D 108 64.2 126 10.8 100 71.4 125 10.0 100 63.2 129 10.0 102 64.2 126 10.2 91.5 71.4 125 9.15 98.3 63.2 129 9.83 94.6 64.2 126 9.46 89.1 71.4 125 8.91 96.8 63.2 129 9.68 Matrix Spike -EPA 8260D 102 64.2 126 51.0 103 71.4 125 51.3 100 63.2 129 50.0 102 64.2 126 51.0 90.0 71.4 125 45.0 97.5 63.2 129 48.8 98.6 64.2 126 49.3 89.1 71.4 125 44.6 98.5 63.2 129 49.2 Matrix Spike Dup -EPA 8260D 106 64.2 126 53.0 99.0 71.4 125 49.5 103 63.2 129 51.5 101 64.2 126 50.4 92.6 71.4 125 46.3 98.4 63.2 129 49.2 98.8 64.2 126 49.4 89.3 71.4 125 44.6 100 63.2 129 50.0 Spk Value Batch OF 10.0 BXJ0307 1.00 10.0 BXJ0307 1.00 10.0 BXJ0307 1.00 10.0 BXJ0384 1.00 10.0 BXJ0384 1.00 10.0 BXJ0384 1.00 10.0 BXJ0465 1.00 10.0 BXJ0465 1.00 10.0 BXJ0465 1.00 10.0 BXJ0307 1.00 10.0 BXJ0307 1.00 10.0 BXJ0307 1.00 10.0 BXJ0384 1.00 10.0 BXJ0384 1.00 10.0 BXJ0384 1.00 10.0 BXJ0465 1.00 10.0 BXJ0465 1.00 10.0 BXJ0465 1.00 50.0 BXJ0307 1.00 50.0 BXJ0307 1.00 50.0 BXJ0307 1.00 50.0 BXJ0384 1.00 50.0 BXJ0384 1.00 50.0 BXJ0384 1.00 50.0 BXJ0465 1.00 50.0 BXJ0465 1.00 50.0 BXJ0465 1.00 50.0 BXJ0307 1.00 50.0 BXJ0307 1.00 50.0 BXJ0307 1.00 50.0 BXJ0384 1.00 50.0 BXJ0384 1.00 50.0 BXJ0384 1.00 50.0 BXJ0465 1.00 50.0 BXJ0465 1.00 50.0 BXJ0465 1.00 Page 17 of 19 Surrogate Recoveries (Field Samples) LabNumber Analyte 8260 Low Level Volatiles 2312285-01 4-Bromofluorobenzene 2312285-01 Toluene-dB 2312285-01 1,2-Dichloroethane-d4 8260 Low Level Volatiles 2312285-02 1,2-Dichloroethane-d4 2312285-02 4-Bromofluorobenzene 2312285-02 Toluene-dB 8260 Low Level Volatiles 2312285-03 1,2-Dichloroethane-d4 2312285-03 2312285-03 4-Bromofluorobenzene Toluene-dB 8260 Low Level Volatiles 2312285-04 . Toluene-dB 2312285-04 2312285-04 2312285-05 2312285-05 2312285-05 2312285-06 2312285-06 2312285-06 1,2-Dichloroethane-d4 4-Bromofluorobenzene 8260 Low Level Volatiles 4-Bromofluorobenzene Toluene-dB 1 ,2-Dichloroethane-d4 8260 Low Level Volatiles 1,2-Dichloroethane-d4 4-Bromofluorobenzene Toluene-dB 8260 Low Level Volatiles 2312285-07 Toluene-dB 2312285-07 2312285-07 1 ,2-Dichloroethane-d4 4-Bromofluorobenzene 8260 Low Level Volatiles 2312285-08 1,2-Dichloroethane-d4 2312285-08 4-Bromofluorobenzene CtF WO#: 2312285 www.ChemtechFord.com Result 8.02 9.61 9.70 10.3 9.70 10.0 9.79 7.95 10.0 9.65 9.95 8.02 7.89 9.66 10.1 9.90 7.92 9.65 9.47 9.56 7.85 9.59 7.76 SpkLvl 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 %Rec 80.2 96.1 97.0 103 97.0 100 97.9 79.5 100 96.5 99.5 80.2 78.9 96.6 101 99.0 79.2 96.5 94.7 95.6 78.5 95.9 77.6 LCL UCL 71.4 125 63.2 129 64.2 126 64.2 126 71.4 125 63.2 129 64.2 126 71.4 125 63.2 129 63.2 129 64.2 126 71.4 125 71.4 125 63.2 129 64.2 126 64.2 126 71.4 125 63.2 129 63.2 129 64.2 126 71.4 125 64.2 126 71.4 125 Qualifier Page 18 of 19 2312285-08 Toluene-dB CtF WO#: 2312285 www.ChemtechFord.com 10.0 10.0 100 63.2 129 Page 19 of 19 Tab I Quality Assurance and Data Validation Tables 1-1: Field QA/QC Evaluation 1x Casing 2x Casing Location Volume Volume Pumped Volume Volume Check Conductivity RPD pH RPD Temperature RPD Redox RPD Turbidity MW.-04 NA e ontinuously Pumped well -1907 NG 6.90 NG 15.84 NG 260 TW4-01 NA €ontinuously Pumped well ~ 2493 NC 6.97 NC 18.20 NC 259 TW4-02 NA Gontinuously Pumped well -3922 NC 6.72 NC 17.10 NC 308 TW4,-03 48.49 73,33 a,6.98 -l?w:nped Dr;y 1774 1777 0.17 6.10 6.~ 0.15 15.64 15.6.0 0.~6 NM TW4~04 NA Continuously Pumpec:I well --2387 NG 7.08 NG 17.07 NC 298 TW4-05 31.57 77.00 63.14. o_kay 1585 1580 0.32 6.70 6.71 0.15 15.72 15.72 0.00 315 315 TW~06 12')fQ 11 .00 II 24.84 Pump~a.Dry 3835 3837 0.05 6.58 6.57 0:15 14.75 14.70 0,34 NM 1W4-07 25~09 55.00 50.18 Pumpeg Dry 1'/45 1748 0.17 6.98 6.98 0.00 13.87 13.89 9.14 NM TW4-08 26.67 66.00 53.34 okay 4535 4533 0.04 6.46 6.47 0.15 15.23 15.23 0.00 321 322 TW4-09 31 .76 77.00 63.52 okay 2418 2416 0.08 6.56 6.56 0.00 15.24 15.22 0.13 298 297 rW4--f0 Z?.64 38·'.50 55.28 Pumpe<;f Dfy '2@89 23;45 !i).26 6.43 6.4~ 0.00 15.41 15.~7 -0,26 NM TW4-11 NA Gonfinuously Pumped well -3703 NC 6.n. NC 19.30 NG 260 1W4-12 30.2~ 38.50 60.4 Punwea Dry 14,11 14-21 0.71 7.11 7.10 0.1:4 14.58 14.63 0.34 NM 1W4-13 31."16 #.Q0 62.a2 Rump-ed Dry 206.5 2077 0,58 7.04 7.0,1 0.14 1:4.27 14.30 0.21 -NM TW4'-M 11.55 14.66. 26.1 P,urnped Wry 524_9 {>26~ 0.29 6.19 6.io 0.16 14.52 14.57 0.34 NM MW-26 NA Continuously Pumped well --3535 N<;; 6.68-NC 17.01 NC 298 TW4-16 47.37 110.00 94.74 okay 3574 3568 0.17 6.34 6.37 0.47 14.96 14.96 0.00 340 332 MW-32 30.76 65.10 61.52 okay 3619 3624 0.14 6.30 6.32 0.32 15.31 15.33 0.13 228 228 TW4-18 40.71 88.00 81.42 okay 2127 2106 0.99 6.40 6.42 0.31 15.50 15.60 0.64 359 359 TW4-19 NA Continuously Pumped well --2807 NC 6.62 NC 16.28 NC 394 TW4-21 NA Continuo~sly Pumped well -2560 NC 6.66 NC 16.44 NC 363 TW4-22 NA e ontinuously Pumped well -5289 NC 6.15 NC 16.35 NC 308 TW4-23 25.62 77.00 51.24 okay 3432 3434 0.06 6.67 6.67 0.00 14.59 14.75 1.09 207 206 TW4-2:II NA Continu0usly Pumped well -7089 NC 6.62 NC 16.21 NC 287 TW4-25 NA Continu0usly Pumped well -2447 NC 6.87 NC 16.-31 NC 294 TW4-i~ 7 .8,6. 8.25, 15.72 l?um~ed Dry 4830 4832 -0.0]l 6.60 6.61 0.1 5 13.80 13.85 Q.36 NM lW.f..-27 10.64 11 .00 21 .28 Pumf!)eqDry 5.!)"21 5·021:1. 0.16 6.05 .6.06 0.H ~4.75 14.72 €1.20 NM lW4-28 37.79 49,50, 75,.58 Pump~ Dry 1~~:· 1550 0.06 7.03 7.03 0 . .00 14.20 14.16 0.2e NM 1W4-29 9:57 8.25 19.14 Pumped Dry 39q9,, ;3950 028 6.8,3 6~84 0~15 14.~8 14.55 0.2.1 NM iW~0, 11.81 14.6Q 23:62 Pumped 0r;y 4~72' 43.89 0:-39_ 5./il,7, ,5,88 ff.17 H .81 -t 4.e5 0.13 NM TW+~1 20.39 25,.6j 40.781 Pumped 0ry 3678 3680 Q,05 6.9D 5-:a9 0.15., 14:60 14.63 0.21 NM TW4-32 37.26 77.00 74.52 okay 5905 5943 0.64 3.90 3.89 0.26 15.06 15.04 0.13 480 481 TW4"33. 4.38 3.66 8.76 ~ump~~d Ory 475© 4166 0.34 6.,®, 6.97 0.14 14-87 14.85 0.1 3 NM 1W'4~a4 11.53 14.66 2-_3.©6 Pumped Dcy 3249 32$5 0.4-9 6.9(! 6.90 0:00 15.55 15.50 0.32 NM 7W4-35,, 6,-88 '7.33 13.76 Pilmf!)ed Dry 4331 43_40 0.21 6.3j 6.35 0.00 14.6_5 14.69 0:27 NM TW4-~6 26.32 g 3.po· 52.64 Pumr:>ed Dry 2405 2410 0.21 6.84 6.85 0.15 14.34 14.37 0.21 NM 1W4-37 NA Continuously Pumped well -4434 NC 6.34 NC 16.63 NC 336 TW4-38 34.37 77.00 68.74 okay 1885 1844 2.20 6.66 6.70 0.60 14.90 14.88 0.13 330 326 TW4-39 NA Continum1sly Pumped well -2548 NC 6.74 NC 16.40 NC 339 TW4-40 NA Continuously Pumped well -4137 NC 6.45 NC 16.3"2 NC 324 TW4-41 NA Continuo1.1sly Pumped well -26.09 NC 7.01 NC 17.98 NC 298 TW4-4·2 9.39 11.0.0 18.78' Pumped' D_ry 3745 ~75,4 0.2.ll 7.12 7.13 0.14 15.00 14:96 0.21 NM TW4-43 14.39 22.00 28.78 Pumped OfY 3586 3588 0.06 6.70 6.69 0.15 14.70 14.68 0.14 NM MW-04, MW-26, TW4-01 , TW4-02, TW4-04, TW4-11 , TW4-19, TW4-21, TW4-22, TW4-24, 1W4-25, TW4-37, TW4-39, TW4-40, TW4-41 are continually pumped wells. TW4-03, TW4-06, TW4-07, TW4-10, TW4-12, 1W4-13 TW4-14 TW4-26 TW4-27, TW4-28 TW4-29, TW4-30, TW4-31, TW4-33, TW4-34, TW4-35 TW4-36, TW4-42, TW4-43 were pumped dry and sampled after recovery. NM = Not Measured. The QAP does not require the measurement of redox potential or turbidity in wells that were purged to dryness. RPO = Relative Percent Difference NC ·o NC 0 NC 0 NC NM NC 0 0.00 2.0 NC NM NC NM 0.31 0 0.34 24.0 -NC NM NC 0 NC NM NC NM NG NM - NC 0 2.38 18.0 0.00 12.0 0.00 11.0 NC 0 NC 0 NC 0 0.48 1.9 NC 0 NC 9.0 NG NM NQ NM NC NM NC -NM NC NM - NC NM 0.21 20.0 NC NM NC. NM NC NM NC NM -NC 14.0 1.22 19.3 NC 19.0 NC 2.9 NC 0 NC NM NC NM The QAP states that turbidity should be less than 5 Nephelometric Turbidity Units ("NTU") prior to sampling unless the well is characterized by water that has a higher turbidity. The QAP does not require that turbidity measurements be less than 5 NTU prior to sampling. As such, the noted observations regarding turbidity measurements less than 5 NTU are included for information purposes only. 2.1 0 23.5 19.0 12.3 11.0 2.0 19.0 19.5 RPD Dissolved Oxygen RPD NC 31.3 NC NC 90.8 NC NC 74.2 NC NC NM NC NG 97.0 NC 4.88 62.4 61 .0 2.27 Ni NM N..8 NC NM N8 0.00 1.0 1.0 0.00 2.11 1.9 1.9 0.00 NG NM -N€ NC 95.0 NC NC NM NC NC NM NG NC NM NC NC 32.1 NC 5.41 2.9 2.9 0.00 2.47 8.5 8.4 1.18 0.00 9.7 9.8 1.03 NC 34.0 NG NC 36.0 N.'G NC 31.2 NC 5.1 3 15.0 16.0 6.45 NC 21.9 NC NC 79,.8 NC NC NM NC NC NM N€ NC NM NG NC NM NG N€ NM N€ N€: NM N€: 5.13 1.0 1.0 0.00 NG-NM N8 N~ NM NC NC NM NG NC NM N€ NC 96.0 NC 1.03 68.0 65.0 4.51 NC 96.8 NC NC 110.0 NC NC 104.1 NC NC NM NC NC NM NC 1-2: Holding Time Evaluation Hold Time Allowed Hold Hold Time Location ID Parameter Name Sample Date Analysis Date (Days) Time (Days) Check Trip Blank Carbon Tetrachloride 08/09/2023 08/11/2023 2 14 OK Trip Blank Chloroform 08/09/2023 08/11/2023 2 14 OK Trip Blank Chloromethane 08/09/2023 08/11/2023 2 14 OK Trip Blank Methylene Chloride 08/09/2023 08/11/2023 2 14 OK Trip Blank Carbon Tetrachloride 09/12/2023 09/25/2023 13 14 OK Trip Blank Chloroform 09/12/2023 09/25/2023 13 14 OK Trip Blank Chloromethane 09/12/2023 09/25/2023 13 14 OK Trip Blank Methylene Chloride 09/12/2023 09/25/2023 13 14 OK Trip Blank Carbon Tetrachloride 09/26/2023 10/09/2023 13 14 OK Trip Blank Chloroform 09/26/2023 10/09/2023 13 14 OK Trip Blank Chloromethane 09/26/2023 10/09/2023 13 14 OK Trip Blank Methylene Chloride 09/26/2023 10/09/2023 13 14 OK MW-04 Chloride 08/09/2023 08/16/2023 7 28 OK MW-04 Carbon Tetrachloride 08/09/2023 08/11/2023 2 14 OK MW-04 Chloroform 08/09/2023 08/11/2023 2 14 OK MW-04 Chloromethane 08/09/2023 08/11 /2023 2 14 OK MW-04 Methylene Chloride 08/09/2023 08/11 /2023 2 14 OK MW-04 Nitrate+ Nitrite as N 08/09/2023 08/17/2023 8 28 OK TW4-0l Chloride 08/09/2023 08/16/2023 7 28 OK TW4-0l Carbon Tetrachloride 08/09/2023 08/11/2023 2 14 OK TW4-0l Chloroform 08/09/2023 08/11/2023 2 14 OK TW4-0l Chloromethane 08/09/2023 08/11/2023 2 14 OK TW4-01 Methylene Chloride 08/09/2023 08/11/2023 2 14 OK TW4-0l Nitrate+ Nitrite as N 08/09/2023 08/17/2023 8 28 OK TW4-02 Chloride 08/09/2023 08/16/2023 7 28 OK TW4-02 Carbon Tetrachloride 08/09/2023 08/11/2023 2 14 OK TW4-02 Chloroform 08/09/2023 08/11 /2023 2 14 OK TW4-02 Chloromethane 08/09/2023 08/11/2023 2 14 OK TW4-02 Methylene Chloride 08/09/2023 08/11/2023 2 14 OK TW4-02 Nitrate+ Nitrite as N 08/09/2023 08/17/2023 8 28 OK TW4-03 Chloride 09/13/2023 09/22/2023 9 28 OK TW4-03 Carbon Tetrachloride 09/13/2023 09/25/2023 12 14 OK TW4-03 Chloroform 09/13/2023 09/25/2023 12 14 OK TW4-03 Chloromethane 09/13/2023 09/25/2023 12 14 OK TW4-03 Methylene Chloride 09/13/2023 09/25/2023 12 14 OK TW4-03 Nitrate+ Nitrite as N 09/13/2023 09/19/2023 6 28 OK TW4-04 Chloride 08/09/2023 08/16/2023 7 28 OK TW4-04 Carbon Tetrachloride 08/09/2023 08/11 /2023 2 14 OK TW4-04 Chloroform 08/09/2023 08/11 /2023 2 14 OK TW4-04 Chloromethane 08/09/2023 08/11 /2023 2 14 OK TW4-04 Methylene Chloride 08/09/2023 08/11 /2023 2 14 OK TW4-04 Nitrate + Nitrite as N 08/09/2023 08/17/2023 8 28 OK TW4-05 Chloride 09/14/2023 09/25/2023 11 28 OK TW4-05 Carbon Tetrachloride 09/14/2023 09/25/2023 11 14 OK TW4-05 Chloroform 09/14/2023 09/25/2023 11 14 OK TW4-05 Chloromethane 09/14/2023 09/25/2023 11 14 OK TW4-05 Methylene Chloride 09/14/2023 09/25/2023 11 14 OK TW4-05 Nitrate+ Nitrite as N 09/14/2023 09/20/2023 6 28 OK TW4-06 Chloride 09/14/2023 09/25/2023 11 28 OK TW4-06 Carbon Tetrachloride 09/14/2023 09/25/2023 11 14 OK TW4-06 Chloroform 09/14/2023 09/25/2023 11 14 OK TW4-06 Chloromethane 09/14/2023 09/25/2023 11 14 OK TW4-06 Methylene Chloride 09/14/2023 09/25/2023 11 14 OK TW4-06 Nitrate+ Nitrite as N 09/14/2023 09/19/2023 5 28 OK 1-2: Holding Time Evaluation Hold Time Allowed Hold Hold Time Location ID Parameter Name Sample Date Analysis Date (Days) Time (Days) Check TW4-07 Chloride 09/27/2023 10/05/2023 8 28 OK TW4-07 Carbon Tetrachloride 09/27/2023 10/09/2023 12 14 OK TW4-07 Chloroform 09/27/2023 10/09/2023 12 14 OK TW4-07 Ch loromethane 09/27/2023 10/09/2023 12 14 OK TW4-07 Methylene Chloride 09/27/2023 10/09/2023 12 14 OK TW4-07 Nitrate+ Nitrite as N 09/27/2023 10/03/2023 6 28 OK TW4-08 Chloride 09/14/2023 09/25/2023 11 28 OK TW4-08 Carbon Tetrachloride 09/14/2023 09/25/2023 11 14 OK TW4-08 ChJorofolTll 09/14/2023 09/25/2023 11 14 OK TW4-08 Chloromethane 09/14/2023 09/25/2023 11 14 OK TW4-08 MetJ,vlene Chloride 09/14/2023 09/25/2023 11 14 OK TW4-08 Nitrate+ Nitrite as N 09/14/2023 09/20/2023 6 28 OK TW4-09 Chloride 09/14/2023 09/25/2023 11 28 OK TW4-09 Carbon Tetrachloride 09/14/2023 09/25/2023 11 14 OK TW4-09 Chloroform 09/14/2023 09/25/2023 11 14 OK TW4-09 Ch loromethane 09/14/2023 09/25/2023 11 14 OK TW4-09 Methylene Chloride 09/14/2023 09/25/2023 11 14 OK TW4-09 Nitrate + Nitrite as N 09/14/2023 09/19/2023 5 28 OK TW4-10 Chloride 09/27/2023 10/05/2023 8 28 OK TW4-10 Carbon Tetrachloride 09/27/2023 10/09/2023 12 14 OK TW4-10 Chloroform 09/27/2023 10/09/2023 12 14 OK TW4-I0 Chloromethane 09/27/2023 10/09/2023 12 14 OK TW4-10 Methylene Chloride 09/27/2023 10/09/2023 12 14 OK TW4-10 Nitrate + Nitrite as N 09/27/2023 10/03/2023 6 28 OK TW4-l 1 Chloride 08/09/2023 08/16/2023 7 28 OK TW4-11 Carbon Tetrachloride 08/09/2023 08/11/2023 2 14 OK TW4-l 1 ChlorofolTll 08/09/2023 08/11/2023 2 14 OK TW4-11 Ch loromethane 08/09/2023 08/11/2023 2 14 OK TW4-l l Methylene Chloride 08/09/2023 08/11/2023 2 14 OK TW4-1 l Nitrate+ Nitrite as N 08/09/2023 08/17/2023 8 28 OK TW4-12 Chloride 09/13/2023 09/25/2023 12 28 OK TW4-12 Carbon Tetrachloride 09/13/2023 09/25/2023 12 14 OK TW4-12 Chlorofonn 09/13/2023 09/25/2023 12 14 OK TW4-12 Ch loromethane 09/13/2023 09/25/2023 12 14 OK TW4-12 Methylene Chloride 09/13/2023 09/25/2023 12 14 OK TW4-12 Nitrate+ Nitrite as N 09/13/2023 09/19/2023 6 28 OK TW4-13 Chloride 09/13/2023 09/25/2023 12 28 OK TW4-l3 Carbon Tetrachloride 09/13/2023 09/25/2023 12 14 OK TW4-13 Chloroform 09/13/2023 09/25/2023 12 14 OK TW4-13 Ch loromethane 09/13/2023 09/25/2023 12 14 OK TW4-13 Methylene Chloride 09/13/2023 09/25/2023 12 14 OK TW4-13 Nitrate + Nitrite as N 09/13/2023 09/19/2023 6 28 OK TW4-14 Chloride 09/13/2023 09/25/2023 12 28 OK TW4-14 Carbon Tetrachloride 09/13/2023 09/25/2023 12 14 OK TW4-14 Chloroform 09/13/2023 09/25/2023 12 14 OK TW4-14 Ch loromethane 09/13/2023 09/25/2023 12 14 OK TW4-14 Methylene Chloride 09/13/2023 09/25/2023 12 14 OK TW4-l4 Nitrate + Nitrite as N 09/13/2023 09/19/2023 6 28 OK MW-26 Chloride 08/09/2023 08/16/2023 7 28 OK MW-26 Carbon Tetrachloride 08/09/2023 08/11/2023 2 14 OK MW-26 Chlorofonn 08/09/2023 08/11/2023 2 14 OK MW-26 Ch loromethane 08/09/2023 08/11/2023 2 14 OK MW-26 Methylene Chloride 08/09/2023 08/11/2023 2 14 OK MW-26 Nitrate+ Nitrite as N 08/09/2023 08/17/2023 8 28 OK I-2: Holding Time Evaluation Hold Time Allowed Hold Hold Time Location ID Parameter Name Sample Date Analysis Date (Days) Time (Days) Check TW4-16 Chloride 09/27/2023 10/05/2023 8 28 OK TW4-16 Carbon Tetrachloride 09/27/2023 10/05/2023 8 14 OK TW4-16 Chlorofonn 09/27/2023 10/05/2023 8 14 OK TW4-16 Cbloromethane 09/27/2023 10/05/2023 8 14 OK TW4-16 Methylene Chloride 09/27/2023 10/05/2023 8 14 OK TW4-16 Nitrate+ Nitrite as N 09/27/2023 10/03/2023 6 28 OK MW-32 Chloride 09/26/2023 10/05/2023 9 28 OK MW-32 Carbon Tetrachloride 09/26/2023 10/06/2023 IO 14 OK MW-32 Chloroform 09/26/2023 10/06/2023 10 14 OK MW-32 Ch loromethane 09/26/2023 10/06/2023 10 14 OK MW-32 Methylene Chloride 09/26/2023 10/06/2023 10 14 OK MW-32 Nitrate + Nitrite as N 09/26/2023 10/03/2023 7 28 OK TW4-18 Chloride 09/14/2023 09/26/2023 12 28 OK TW4-18 Carbon Tetrachloride 09/14/2023 09/25/2023 11 14 OK TW4-18 Chlorofonn 09/14/2023 09/25/2023 11 14 OK TW4-18 Chloromethane 09/14/2023 09/25/2023 II 14 OK TW4-18 Methylene Chloride 09/14/2023 09/25/2023 11 14 OK TW4-18 Nitrate+ Nitrite as N 09/14/2023 09/25/2023 11 28 OK TW4-19 Chloride 08/09/2023 08/16/2023 7 28 OK TW4-19 Carbon Tetrachloride 08/09/2023 08/11/2023 2 14 OK TW4-19 Chlorofonn 08/09/2023 08/11/2023 2 14 OK TW4-19 Chloromethane 08/09/2023 08/11/2023 2 14 OK TW4-19 Methylene Chloride 08/09/2023 08/11/2023 2 14 OK TW4-19 Nitrate+ Nitrite as N 08/09/2023 08/17/2023 8 28 OK TW4-21 Chloride 08/09/2023 08/16/2023 7 28 OK TW4-21 Carbon Tetrachloride 08/09/2023 08/11/2023 2 14 OK TW4-21 Chloroform 08/09/2023 08/11/2023 2 14 OK TW4-21 Ch loromethane 08/09/2023 08/11/2023 2 14 OK TW4-21 Methylene Chloride 08/09/2023 08/11/2023 2 14 OK TW4-21 Nitrate + Nitrite as N 08/09/2023 08/17/2023 8 28 OK TW4-22 Chloride 08/09/2023 08/18/2023 9 28 OK TW4-22 Carbon Tetrachloride 08/09/2023 08/11/2023 2 14 OK TW4-22 Chloroform 08/09/2023 08/11/2023 2 14 OK TW4-22 Chloromethane 08/09/2023 08/11/2023 2 14 OK TW4-22 Methylene Chloride 08/09/2023 08/11/2023 2 14 OK TW4-22 Nitrate + Nitrite as N 08/09/2023 08/17/2023 8 28 OK TW4-23 Chloride 09/13/2023 09/25/2023 12 28 OK TW4-23 Carbon Tetrachloride 09/13/2023 09/25/2023 12 14 OK TW4-23 Chloroform 09/13/2023 09/25/2023 12 14 OK TW4-23 Ch lorometbane 09/13/2023 09/25/2023 12 14 OK TW4-23 Methylene Chloride 09/13/2023 09/25/2023 12 14 OK TW4-23 Nitrate + Nitrite as N 09/13/2023 09/19/2023 6 28 OK TW4-24 Chloride 08/09/2023 08/16/2023 7 28 OK TW4-24 Carbon Tetrachloride 08/09/2023 08/11/2023 2 14 OK TW4-24 Chlorofonn 08/09/2023 08/11/2023 2 14 OK TW4-24 Ch loromethane 08/09/2023 08/11/2023 2 14 OK TW4-24 Methylene Chloride 08/09/2023 08/11/2023 2 14 OK TW4-24 Nitrate+ Nitrite as N 08/09/2023 08/17/2023 8 28 OK TW4-25 Chloride 08/09/2023 08/16/2023 7 28 OK TW4-25 Carbon Tetrachloride 08/09/2023 08/11/2023 2 14 OK TW4-25 Chloroform 08/09/2023 08/11/2023 2 14 OK TW4-25 Ch loromethane 08/09/2023 08/11/2023 2 14 OK TW4-25 Metbylene Chloride 08/09/2023 08/11/2023 2 14 OK TW4-25 Nitrate+ Nitrite as N 08/09/2023 08/17/2023 8 28 OK 1-2: Holding Time Evaluation Hold Time Allowed Hold Hold Time Location ID Parameter Name Sample Date Analysis Date (Days) Time (Days) Check TW4-26 Chloride 09/27/2023 10/05/2023 8 28 OK TW4-26 Carbon Tetrachloride 09/27/2023 10/09/2023 12 14 OK TW4-26 Chloroform 09/27/2023 10/09/2023 12 14 OK TW4-26 Chloromethane 09/27/2023 10/09/2023 12 14 OK TW4-26 Methylene Chloride 09/27/2023 10/09/2023 12 14 OK TW4-26 Nitrate+ Nitrite as N 09/27/2023 10/03 /2023 6 28 OK TW4-27 Chloride 09/14/2023 09/25 /2023 11 28 OK TW4-27 Carbon Tetrachloride 09/14/2023 09/25/2023 11 14 OK TW4-27 Chloroform 09/14/2023 09/25/2023 11 14 OK TW4-27 Chloromethane 09/14/2023 09/25/2023 11 14 OK TW4-27 Methylene Chloride 09/14/2023 09/25/2023 11 14 OK TW4-27 Nitrate + Nitrite as N 09/14/2023 09/19/2023 5 28 OK TW4-28 Chloride 09/13/2023 09/25/2023 12 28 OK TW4-28 Carbon Tetrachloride 09/13/2023 09/25/2023 12 14 OK TW4-28 Chloroform 09/13/2023 09/25/2023 12 14 OK TW4-28 Chloromethane 09/13/2023 09/25/2023 12 14 OK TW4-28 Methylene Chloride 09/13/2023 09/25/2023 12 14 OK TW4-28 Nitrate + Nitrite as N 09/13/2023 09/19/2023 6 28 OK TW4-29 Chloride 09/27/2023 10/05/2023 8 28 OK TW4-29 Carbon Tetrachloride 09/27/2023 10/09/2023 12 14 OK TW4-29 Chloroform 09/27/2023 10/09/2023 12 14 OK TW4-29 Chloromethane 09/27/2023 10/09/2023 12 14 OK TW4-29 Methylene Chloride 09/27/2023 10/09/2023 12 14 OK TW4-29 Nitrate+ Nitrite as N 09/27/2023 10/03/2023 6 28 OK TW4-30 Chloride 09/14/2023 09/25 /2023 11 28 OK TW4-30 Carbon Tetrachloride 09/14/2023 09/25/2023 11 14 OK TW4-30 Chloroform 09/14/2023 09/25/2023 11 14 OK TW4-30 Chloromethane 09/14/2023 09/25/2023 11 14 OK TW4-30 Methylene Chloride 09/14/2023 09/25/2023 11 14 OK TW4-30 Nitrate+ Nitrite as N 09/14/2023 09/20/2023 6 28 OK TW4-30R Chloride 09/13/2023 09/25/2023 12 28 OK TW4-30R Carbon Tetrachloride 09/13/2023 09/25/2023 12 14 OK TW4-30R Chloroform 09/13/2023 09/25/2023 12 14 OK TW4-30R Chloromethane 09/13/2023 09/25/2023 12 14 OK TW4-30R Methylene Chloride 09/13/2023 09/25/2023 12 14 OK TW4-30R Nitrate+ Nitrite as N 09/13/2023 09/19/2023 6 28 OK TW4-31 Chloride 09/13/2023 09/25/2023 12 28 OK TW4-31 Carbon Tetrachloride 09/13/2023 09/25/2023 12 14 OK TW4-31 Chloroform 09/13/2023 09/25/2023 12 14 OK TW4-31 Chloromethane 09/13/2023 09/25/2023 12 14 OK TW4-31 Methylene Chloride 09/13/2023 09/25/2023 12 14 OK TW4-31 Nitrate+ Nitrite as N 09/13/2023 09/19/2023 6 28 OK TW4-32 Chloride 09/13/2023 09/25/2023 12 28 OK TW4-32 Carbon Tetrachloride 09/13/2023 09/25/2023 12 14 OK TW4-32 Chloroform 09/13/2023 09/25/2023 12 14 OK TW4-32 Chloromethane 09/13/2023 09/25/2023 12 14 OK TW4-32 Methylene Chloride 09/13/2023 09/25/2023 12 14 OK TW4-32 Nitrate+ Nitrite as N 09/13/2023 09/19/2023 6 28 OK TW4-33 Chloride 09/14/2023 09/26/2023 12 28 OK TW4-33 Carbon Tetrachloride 09/14/2023 09/25/2023 11 14 OK TW4-33 Chloroform 09/14/2023 09/25/2023 11 14 OK TW4-33 Chloromethane 09/14/2023 09/25/2023 11 14 OK TW4-33 Methylene Chloride 09/14/2023 09/25/2023 11 14 OK TW4-33 Nitrate+ Nitrite as N 09/14/2023 09/20/2023 6 28 OK I-2: Holding Time Evaluation Hold Time Allowed Hold Hold Time Location ID Parameter Name Sample Date Analysis Date (Davs) Time (Days) Check TW4-34 Chloride 09/14/2023 09/25/2023 11 28 OK TW4-34 Carbon Tetrachloride 09/14/2023 09/25/2023 11 14 OK TW4-34 Chloroform 09/14/2023 09/25/2023 11 14 OK TW4-34 Chloromethane 09/14/2023 09/25/2023 11 14 OK TW4-34 Methylene Chloride 09/14/2023 09/25/2023 11 14 OK TW4-34 Nitrate+ Nitrite as N 09/14/2023 09/19/2023 5 28 OK TW4-35 Chloride 09/13/2023 09/25/2023 12 28 OK TW4-35 Carbon Tetrachloride 09/13/2023 09/25/2023 12 14 OK TW4-35 Chloroform 09/13/2023 09/25/2023 12 14 OK TW4-35 Chloromethane 09/13/2023 09/25/2023 12 14 OK TW4-35 Methylene Chloride 09/13/2023 09/25/2023 12 14 OK TW4-35 Nitrate + Nitrite as N 09/13/2023 09/19/2023 6 28 OK TW4-36 Chloride 09/13/2023 09/25/2023 12 28 OK TW4-36 Carbon Tetrachloride 09/13/2023 09/25/2023 12 14 OK TW4-36 Chloroform 09/13/2023 09/25/2023 12 14 OK TW4-36 Chloromethane 09/13/2023 09/25/2023 12 14 OK TW4-36 Methylene Chloride 09/13/2023 09/25/2023 12 14 OK TW4-36 Nitrate+ Nitrite as N 09/13/2023 09/19/2023 6 28 OK TW4-36R Chloride 09/12/2023 09/22/2023 10 28 OK TW4-36R Carbon Tetrachloride 09/12/2023 09/25/2023 13 14 OK TW4-36R Chloroform 09/12/2023 09/25/2023 13 14 OK TW4-36R Chloromethane 09/12/2023 09/25/2023 13 14 OK TW4-36R Methylene Chloride 09/12/2023 09/25/2023 13 14 OK TW4-36R Nitrate+ Nitrite as N 09/12/2023 09/20/2023 8 28 OK TW4-37 Chloride 08/09/2023 08/18/2023 9 28 OK TW4-37 Carbon Tetrachloride 08/09/2023 08/11/2023 2 14 OK TW4-37 Chloroform 08/09/2023 08/11 /2023 2 14 OK TW4-37 Chloromethane 08/09/2023 08/11/2023 2 14 OK TW4-37 Methylene Chloride 08/09/2023 08/11/2023 2 14 OK TW4-37 Nitrate+ Nitrite as N 08/09/2023 08/17/2023 8 28 OK TW4-38 Chloride 09/13/2023 09/25/2023 12 28 OK TW4-38 Carbon Tetrachloride 09/13/2023 09/25/2023 12 14 OK TW4-38 Chloroform 09/13/2023 09/25/2023 12 14 OK TW4-38 Chloromethane 09/13/2023 09/25/2023 12 14 OK TW4-38 Methylene Chloride 09/13/2023 09/25/2023 12 14 OK TW4-38 Nitrate+ Nitrite as N 09/13/2023 09/19/2023 6 28 OK TW4-39 Chloride 08/09/2023 08/16/2023 7 28 OK TW4-39 Carbon Tetrachloride 08/09/2023 08/11/2023 2 14 OK TW4-39 Chloroform 08/09/2023 08/11/2023 2 14 OK TW4-39 Chloromethane 08/09/2023 08/11 /2023 2 14 OK TW4-39 Methylene Chloride 08/09/2023 08/11/2023 2 14 OK TW4-39 Nitrate+ Nitrite as N 08/09/2023 08/17/2023 8 28 OK TW4-40 Chloride 08/09/2023 08/16/2023 7 28 OK TW4-40 Carbon Tetrachloride 08/09/2023 08/11/2023 2 14 OK TW4-40 Chloroform 08/09/2023 08/11/2023 2 14 OK TW4-40 Chloromethane 08/09/2023 08/11/2023 2 14 OK TW4-40 Methylene Chloride 08/09/2023 08/11/2023 2 14 OK TW4-40 Nitrate + Nitrite as N 08/09/2023 08/17/2023 8 28 OK TW4-41 Chloride 08/09/2023 08/16/2023 7 28 OK TW4-41 Carbon Tetrachloride 08/09/2023 08/11/2023 2 14 OK TW4-41 Chloroform 08/09/2023 08/11/2023 2 14 OK TW4-41 Chloromethane 08/09/2023 08/11/2023 2 14 OK TW4-41 Methylene Chloride 08/09/2023 08/11/2023 2 14 OK TW4-41 Nitrate+ Nitrite as N 08/09/2023 08/17/2023 8 28 OK I-2: Holding Time Evaluation Hold Time Allowed Hold Hold Time Location ID Parameter Name Sample Date Analysis Date (Days) Time (Days) Check TW4-42 Chloride 09/13/2023 09/25/2023 12 28 OK TW4-42 Carbon Tetrachloride 09/13/2023 09/25/2023 12 14 OK TW4-42 Chloroform 09/13/2023 09/25/2023 12 14 OK TW4-42 Chloromethane 09/13/2023 09/25/2023 12 14 OK TW4-42 Methylene Chloride 09/13/2023 09/25/2023 12 14 OK TW4-42 Nitrate+ Nitrite as N 09/13/2023 09/19/2023 6 28 OK TW4-43 Chloride 09/13/2023 09/25/2023 12 28 OK TW4-43 Carbon Tetrachloride 09/13/2023 09/25/2023 12 14 OK TW4-43 Chloroform 09/13/2023 09/25/2023 12 14 OK TW4-43 Chloromethane 09/13/2023 09/25/2023 12 14 OK TW4-43 Methylene Chloride 09/13/2023 09/25/2023 12 14 OK TW4-43 Nitrate + Nitrite as N 09/13/2023 09/19/2023 6 28 OK TW4-60 Chloride 08/09/2023 08/18/2023 9 28 OK TW4-60 Carbon Tetrachloride 08/09/2023 08/15/2023 6 14 OK TW4-60 Chloroform 08/09/2023 08/15/2023 6 14 OK TW4-60 Chloromethane 08/09/2023 08/15/2023 6 14 OK TW4-60 Methylene Chloride 08/09/2023 08/15/2023 6 14 OK TW4-60 Nitrate+ Nitrite as N 08/09/2023 08/17/2023 8 28 OK TW4-65 Chloride 09/13/2023 09/26/2023 13 28 OK TW4-65 Carbon Tetrachloride 09/13/2023 09/25/2023 12 14 OK TW4-65 Chloroform 09/13/2023 09/25/2023 12 14 OK TW4-65 Chloromethane 09/13/2023 09/25/2023 12 14 OK TW4-65 Methylene Chloride 09/13/2023 09/25/2023 12 14 OK TW4-65 Nitrate + Nitrite as N . 09/13/2023 09/25/2023 12 28 OK TW4-70 Chloride 09/14/2023 09/26/2023 12 28 OK TW4-70 Carbon Tetrachloride 09/14/2023 09/25/2023 11 14 OK TW4-70 Chloroform 09/14/2023 09/25/2023 11 14 OK TW4-70 Chloromethane 09/14/2023 09/25/2023 11 14 OK TW4-70 Methylene Chloride 09/14/2023 09/25/2023 11 14 OK TW4-70 Nitrate+ Nitrite as N 09/14/2023 09/25/2023 11 28 OK TW4-75 Chloride 09/26/2023 10/05/2023 9 28 OK TW4-75 Carbon Tetrachloride 09/26/2023 10/09/2023 13 14 OK TW4-75 Chloroform 09/26/2023 10/09/2023 13 14 OK TW4-75 Chloromethane 09/26/2023 10/09/2023 13 14 OK TW4-75 Methylene Chloride 09/26/2023 10/09/2023 13 14 OK TW4-75 Nitrate + Nitrite as N 09/26/2023 10/03/2023 7 28 OK Table I-3 Recipt Temperature Check Sample Batch Wells in Batch Temperature 23Hl 109 MW-04, TW4-0l TW4-02, TW4-04, TW4-l I, MW-26, TW4-19, TW4-21 TW4 o.3°C 22, TW4-24, TW4-25, TW4-37 TW4-39, TW4-40, TW4-41 TW4-60, Trip Blank TW4-03, TW4-05, TW4-06, TW4-08, TW4-09 TW4-12, TW4-13, TW4-14, 23Il200 TW4-l8, TW4-23, TW4-27, TW4-28, TW4-30, TW4-30R, TW4-3 I , TW4-32, 0.0'C TW4-33, TW4-34, TW4-35, TW4-36, TW4-38, TW4-42, TW4-43, TW4-65 TW4-70, Trip Blank 2312285 MW-32 TW4-07 TW4-l0, TW4-l6, TW4-26, TW4-29, TW4-75, Trip Blank -0.4°C 1-4 Analytical Method Check Parameter Method Method Used by Lab SW8260B, Carbon Tetrachloride SW8260C or SW8260D SW8260D A4500-Cl B or Chloride A4500-Cl E or E300.0 E300.0 SW8260B, Chlorofonn SW8260C or SW8260D SW8260D SW8260B, Chloromethane SW8260C or SW8260D SW8260D SW8260B, Methylene chloride SW8260C or SW8260D SW8260D Nitrogen E353.1 or E353.2 E353.2 All parameters were analyzed using the reporting method specificied in the QAP I-5 Reporting Limit Check Lab Reporting Dilution Required Location Analyte Limit Units Qualifier Factor Reporting Limit RL Check Trip Blank Carbon Tetrachloride 1.0 ug/L u 1 1 OK Trip Blank Chloroform 1.0 ug/L u 1 1 OK Trip Blank Chloromethane 1.0 ug/L u 1 1 OK Trip Blank Methylene Chloride 1.0 ug/L u 1 1 OK Trip Blank Carbon Tetrachloride 1.0 ug/L u 1 1 OK Trip Blank Chloroform 1.0 ug/L u 1 1 OK Trip Blank Chloromethane 1.0 ug/L u 1 1 OK Trip Blank Methylene Chloride 1.0 ug/L u 1 1 OK Trip Blank Carbon Tetrachloride 1.0 ug/L u 1 1 OK Trip Blank Chloroform 1.0 ug/L u 1 1 OK Trip Blank Chloromethane 1.0 ug/L u 1 1 OK Trip Blank Methylene Chloride 1.0 ug/L u 1 1 OK MW-04 Chloride 1.00 mg/L 1 1 OK MW-04 Carbon Tetrachloride 1.0 ug/L u 1 1 OK MW-04 Chloroform 100 ug/L 100 1 OK MW-04 Chloromethane 1.0 ug/L u 1 1 OK MW-04 Methylene Chloride 1.0 ug/L u 1 1 OK MW-04 Nitrate+ Nitrite as N 0.100 mg/L 1 0.1 OK TW4-0l Chloride 1.00 mg/L 1 1 OK TW4-0l Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-0l Chloroform 100.0 ug/L 100 1 OK TW4-0l Chloromethane 1.0 ug/L u 1 1 OK TW4-0l Methylene Chloride 1.0 ug/L u 1 1 OK TW4-0l Nitrate+ Nitrite as N 0.100 mg/L 1 0.1 OK TW4-02 Chloride 1.00 mg/L 1 1 OK TW4-02 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-02 Chloroform 100.0 ug/L 100 I OK TW4-02 Chloromethane 1.0 ug/L u 1 1 OK TW4-02 Methylene Chloride 1.0 ug/L u I 1 OK TW4-02 Nitrate+ Nitrite as N 0.100 mg/L I 0.1 OK TW4-03 Chloride 1.00 mg/L 1 1 OK TW4-03 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-03 Chloroform 1.0 ug/L u I 1 OK TW4-03 Chloromethane 1.0 ug/L u 1 1 OK TW4-03 Methylene Chloride 1.0 ug/L u I l OK TW4-03 Nitrate+ Nitrite as N 0.500 mg/L 5 0.1 OK TW4-04 Chloride 1.00 mg/L 1 l OK TW4-04 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-04 Chloroform 100 ug/L 100 1 OK TW4-04 Chloromethane 1.0 ug/L u 1 I OK TW4-04 Methylene Chloride 1.0 ug/L u 1 I OK TW4-04 Nitrate+ Nitrite as N 0.200 mg/L 2 0.1 OK TW4-05 Chloride 1.00 mg/L 1 I OK TW4-05 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-05 Chloroform 1.0 ug/L 1 1 OK TW4-05 Chloromethane 1.0 ug/L u l 1 OK TW4-05 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-05 Nitrate + Nitrite as N 0.200 mg/L 2 0.1 OK TW4-06 Chloride 1.00 mg/L l 1 OK TW4-06 Carbon Tetrachloride 1.0 ug/L u 1 1 OK 1-5 Reporting Limit Check Lab Reporting Dilution Required Location Analyte Limit Units Qualifier Factor Reporting Limit RLCheck TW4-06 Chloroform 1.0 ug/L 1 1 OK TW4-06 Chloromethane 1.0 ug/L u 1 I OK TW4-06 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-06 Nitrate+ Nitrite as N 0.100 mg/L 1 0.1 OK TW4-07 Chloride 1.00 mg/L 1 1 OK TW4-07 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-07 Chloroform 50.0 ug/L 50 1 OK TW4-07 Chloromethane 1.0 ug/L u 1 1 OK TW4-07 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-07 Nitrate + Nitrite as N 0.100 mg/L 1 0.1 OK TW4-08 Chloride 1.00 mg/L 1 1 OK TW4-08 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-08 Chloroform 1.0 ug/L 1 1 OK TW4-08 Chloromethane 1.0 ug/L u 1 1 OK TW4-08 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-08 Nitrate + Nitrite as N 0.100 mg/L 1 0.1 OK TW4-09 Chloride 1.00 mg/L 1 1 OK TW4-09 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-09 Chloroform 1.0 ug/L 1 1 OK TW4-09 Chloromethane 1.0 ug/L u 1 1 OK TW4-09 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-09 Nitrate+ Nitrite as N 0.100 mg/L 1 0.1 OK TW4-10 Chloride 1.00 mg/L 1 1 OK TW4-10 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-10 Chloroform 10.0 ug/L 10 1 OK TW4-10 Chloromethane 1.0 ug/L u 1 1 OK TW4-10 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-10 Nitrate + Nitrite as N 0.100 mg/L 1 0.1 OK TW4-l l Chloride 1.00 mg/L 1 1 OK TW4-l l Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-ll Chloroform 100 ug/L 100 1 OK TW4-l l Chloromethane 1.0 ug/L u 1 1 OK TW4-l l Methylene Chloride 1.0 ug/L u 1 1 OK TW4-l l Nitrate + Nitrite as N 0.200 mg/L 2 0.1 OK TW4-12 Chloride 1.00 mg/L 1 1 OK TW4-12 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-12 Chloroform 1.0 ug/L u 1 1 OK TW4-12 Chloromethane 1.0 ug/L u I 1 OK TW4-12 Methylene Chloride 1.0 ug/L u I 1 OK TW4-12 Nitrate+ Nitrite as N 0.200 mg/L 2 1 OK TW4-13 Chloride 1.00 mg/L 1 1 OK TW4-13 Carbon Tetrachloride 1.0 ug/L u 1 I OK TW4-13 Chloroform 1.0 ug/L u I 1 OK TW4-13 Chloromethane 1.0 ug/L u I 0.1 OK TW4-13 Methylene Chloride 1.0 ug/L u I I OK TW4-13 Nitrate+ Nitrite as N 0.200 mg/L 2 0.1 OK 1-5 Reponing Limit Check Lab Reporting Dilution Required Location Analyte Limit Units Qualifier Factor Reporting Limit RL Check TW4-14 Chloride 1.00 mg/L 1 1 OK TW4-14 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-14 Chloroform 1.0 ug/L u 1 1 OK TW4-14 Chloromethane 1.0 ug/L u 1 1 OK TW4-14 Methylene Chloride 1.0 ug/L u I 1 OK TW4-14 Nitrate+ Nitrite as N 0.200 mg/L 2 0.1 OK MW-26 Chloride 1.00 mg/L 1 1 OK MW-26 Carbon Tetrachloride 1.0 ug/L u 1 1 OK MW-26 Chloroform 100 ug/L 100 1 OK MW-26 Chloromethane 1.0 ug/L u 1 I OK MW-26 Methylene Chloride 1.0 ug/L u 1 1 OK MW-26 Nitrate+ Nitrite as N 0.100 mg/L 1 0.1 OK TW4-16 Chloride 1.00 mg/L 1 1 OK TW4-16 Carbon Tetrachloride 1.0 ug/L u I I OK TW4-16 Chloroform 10.0 ug/L 10 I OK TW4-16 Chloromethane 1.0 ug/L u I I OK TW4-16 Methylene Chloride 1.0 ug/L u I I OK TW4-16 Nitrate+ Nitrite as N 0.200 mg/L 2 0.1 OK MW-32 Chloride 1.00 mg/L I 1 OK MW-32 Carbon Tetrachloride 1.0 ug/L u I I OK MW-32 Chloroform 1.0 ug/L u I I OK MW-32 Chloromethane 1.0 ug/L u I I OK MW-32 Methylene Chloride 1.0 ug/L u I I OK MW-32 Nitrate+ Nitrite as N 0.100 mg/L u I I OK TW4-18 Chloride 1.00 mg/L 1 I OK TW4-18 Carbon Tetrachloride 1.0 ug/L u 1 I OK TW4-18 Chloroform 1.0 ug/L 1 1 OK TW4-18 Chloromethane 1.0 ug/L u I 0.1 OK TW4-18 Methylene Chloride 1.0 ug/L u I I OK TW4-18 Nitrate+ Nitrite as N 0.100 mg/L I 0.1 OK TW4-19 Chloride 2.00 mg/L 2 1 OK TW4-19 Carbon Tetrachloride 1.0 ug/L u 1 I OK TW4-19 Chloroform 10 ug/L 10 1 OK TW4-19 Chloromethane 1.0 ug/L u I 1 OK TW4-19 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-19 Nitrate+ Nitrite as N 0.200 mg/L 2 0.1 OK TW4-21 Chloride 2.0 mg/L 2 1 OK TW4-21 Carbon Tetrachloride 1.0 ug/L u I I OK TW4-21 Chloroform 1.0 ug/L 1 1 OK TW4-21 Chloromethane 1.0 ug/L u I I OK TW4-21 Methylene Chloride 1.0 ug/L u I I OK TW4-21 Nitrate+ Nitrite as N 0.500 mg/L 5 0.1 OK TW4-22 Chloride 10.0 mg/L 10 1 OK TW4-22 Carbon Tetrachloride 1.0 ug/L u I 1 OK TW4-22 Chloroform 100 ug/L 100 I OK TW4-22 Chloromethane 1.0 ug/L u I 1 OK 1-5 Reporting Limit Check Lab Reporting Dilution Required Location Analvte Limit Units Qualifier Factor Reporting Limit RLCheck TW4-22 Methylene Chloride 1.0 ug/L 1 I OK TW4-22 Nitrate+ Nitrite as N 2.00 mg/L 20 0.1 OK TW4-23 Chloride 1.00 mg/L 1 1 OK TW4-23 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-23 Chloroform 1.0 ug/L u 1 1 OK TW4-23 Chloromethane 1.0 ug/L u 1 1 OK TW4-23 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-23 Nitrate+ Nitrite as N 0.100 mg/L u 1 0.1 OK TW4-24 Chloride 10.0 mg/L IO 1 OK TW4-24 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-24 Chloroform 1.0 ug/L 1 1 OK TW4-24 Chloromethane 1.0 ug/L u 1 1 OK TW4-24 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-24 Nitrate + Nitrite as N 1.00 mg/L 10 0.1 OK TW4-25 Chloride 1.00 mg/L 1 1 OK TW4-25 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-25 Chloroform 1.0 ug/L u 1 1 OK TW4-25 Chloromethane 1.0 ug/L u 1 l OK TW4-25 Methylene Chloride 1.0 ug/L u 1 l OK TW4-25 Nitrate+ Nitrite as N 0.100 mg/L 1 0.1 OK TW4-26 Chloride 1.00 mg/L 1 1 OK TW4-26 Carbon Tetrachloride 1.0 ug/L u l 1 OK TW4-26 Chloroform 50.0 ug/L 50 1 OK TW4-26 Chloromethane 1.0 ug/L u l l OK TW4-26 Methylene Chloride 1.0 ug/L u 1 l OK TW4-26 Nitrate+ Nitrite as N 0.500 mg/L 5 0.1 OK TW4-27 Chloride 1.00 mg/L 1 1 OK TW4-27 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-27 Chloroform 1.0 ug/L 1 1 OK TW4-27 Chloromethane 1.0 ug/L u I 1 OK TW4-27 Methylene Chloride 1.0 ug/L u 1 l OK TW4-27 Nitrate + Nitrite as N 1.000 mg/L IO 0.1 OK TW4-28 Chloride 1.00 mg/L I 1 OK TW4-28 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-28 Chloroform 1.0 ug/L u 1 l OK TW4-28 Chloromethane 1.0 ug/L u 1 1 OK TW4-28 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-28 Nitrate+ Nitrite as N 0.500 mg/L 5 0.1 OK TW4-29 Chloride 1.00 mg/L 1 1 OK TW4-29 Carbon Tetrachloride 1.0 ug/L u 1 l OK TW4-29 Chloroform 50.0 ug/L 50 l OK TW4-29 Chloromethane 1.0 ug/L u 1 l OK TW4-29 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-29 Nitrate + Nitrite as N 0.100 mg/L 1 0.1 OK TW4-30 Chloride 1.00 mg/L 1 1 OK TW4-30 Carbon Tetrachloride 1.0 ug/L u 1 l OK 1-5 Reporting Limit Check Lab Reporting Dilution Required Location Analyte Limit Units Qualifier Factor Reporting Limit RLCheck TW4-30 Chloroform 1.0 ug/L I I OK TW4-30 Chloromethane 1.0 ug/L u I I OK TW4-30 Methylene Chloride 1.0 ug/L u I I OK TW4-30 Nitrate+ Nitrite as N 0.100 mg/L I 0.1 OK TW4-30R Chloride 1.000 mg/L u I I OK TW4-30R Carbon Tetrachloride 1.000 ug/L u I I OK TW4-30R Chloroform 1.000 ug/L I I OK TW4-30R Chloromethane 1.000 ug/L u 1 I OK TW4-30R Methylene Chloride 1.000 ug/L u I I OK TW4-30R Nitrate+ Nitrite as N 0.100 mg/L u I 0.1 OK TW4-31 Chloride 1.00 mg/L I I OK TW4-31 Carbon Tetrachloride 1.0 ug/L u I I OK TW4-31 Chloroform 1.0 ug/L u I I OK TW4-31 Chloromethane 1.0 ug/L u I I OK TW4-31 Methylene Chloride 1.0 ug/L u I I OK TW4-31 Nitrate+ Nitrite as N 0.100 mg/L I 0.1 OK TW4-32 Chloride 1.00 mg/L I I OK TW4-32 Carbon Tetrachloride 1.0 ug/L u I I OK TW4-32 Chloroform 1.0 ug/L u I I OK TW4-32 Chloromethane 1.0 ug/L u I I OK TW4-32 Methylene Chloride 1.0 ug/L u I I OK TW4-32 Nitrate+ Nitrite as N 0.100 mg/L I 0.1 OK TW4-33 Chloride 1.00 mg/L l I OK TW4-33 Carbon Tetrachloride 1.0 ug/L u I I OK TW4-33 Chloroform 1.0 ug/L I I OK TW4-33 Chloromethane 1.0 ug/L u I I OK TW4-33 Methylene Chloride 1.0 ug/L u I I OK TW4-33 Nitrate+ Nitrite as N 0.200 mg/L 2 0.1 OK TW4-34 Chloride 1.00 mg/L I I OK TW4-34 Carbon Tetrachloride 1.0 ug/L u I I OK TW4-34 Chloroform 1.0 ug/L u I I OK TW4-34 Chloromethane 1.0 ug/L u I I OK TW4-34 Methylene Chloride 1.0 ug/L u I I OK TW4-34 Nitrate + Nitrite as N 0.100 mg/L I 0.1 OK TW4-35 Chloride 1.00 mg/L I I OK TW4-35 Carbon Tetrachloride 1.0 ug/L u 1 I OK TW4-35 Chloroform 1.0 ug/L I I OK TW4-35 Chloromethane 1.0 ug/L u I I OK TW4-35 Methylene Chloride 1.0 ug/L u I I OK TW4-35 Nitrate+ Nitrite as N 0.100 mg/L 1 0.1 OK TW4-36 Chloride 1.00 mg/L I I OK TW4-36 Carbon Tetrachloride 1.0 ug/L u 1 I OK TW4-36 Chloroform 1.0 ug/L u I I OK TW4-36 Chloromethane 1.0 ug/L u I I OK TW4-36 Methylene Chloride 1.0 ug/L u I I OK TW4-36 Nitrate+ Nitrite as N 0.100 mg/L 1 0.1 OK 1-5 Reporting Limit Check Lab Reporting Dilution Required Location Analyte Limit Units Qualifier Factor Reporting Limit RLCheck TW4-36R Chloride 1.000 mg/L u 1 1 OK TW4-36R Carbon Tetrachloride 1.000 ug/L u 1 1 OK TW4-36R Chloroform 1.000 ug/L 1 1 OK TW4-36R Chloromethane 1.000 ug/L u 1 1 OK TW4-36R Methylene Chloride 1.000 ug/L u 1 1 OK TW4-36R Nitrate+ Nitrite as N 0.100 mg/L u 1 0.1 OK TW4-37 Chloride 10.0 mg/L 10 1 OK TW4-37 Carbon Tetrachloride 1.0 ug/L 1 I OK TW4-37 Chloroform 100 ug/L 100 I OK TW4-37 Chloromethane 1.0 ug/L u 1 I OK TW4-37 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-37 Nitrate+ Nitrite as N 1.00 mg/L 10 0.1 OK TW4-38 Chloride 1.00 mg/L I I OK TW4-38 Carbon Tetrachloride 1.0 ug/L u I I OK TW4-38 Chloroform 1.0 ug/L u 1 I OK TW4-38 Chloromethane 1.0 ug/L u 1 1 OK TW4-38 Methylene Chloride 1.0 ug/L u I I OK TW4-38 Nitrate+ Nitrite as N 0.200 mg/L 2 0.1 OK TW4-39 Chloride 1.00 mg/L 1 I OK TW4-39 Carbon Tetrachloride 1.0 ug/L 1 1 OK TW4-39 Chloroform 100 ug/L 100 I OK TW4-39 Chloromethane 1.0 ug/L u I 1 OK TW4-39 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-39 Nitrate + Nitrite as N 0.200 mg/L 2 0.1 OK TW4-40 Chloride 1.00 mg/L 1 I OK TW4-40 Carbon Tetrachloride l.0 ug/L u I 1 OK TW4-40 Chloroform 10.0 ug/L 10 1 OK TW4-40 Chloromethane 1.0 ug/L u 1 I OK TW4-40 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-40 Nitrate+ Nitrite as N 0.100 mg/L 1 0.1 OK TW4-41 Chloride 1.00 mg/L 1 I OK TW4-41 Carbon Tetrachloride 1.0 ug/L u 1 I OK TW4-41 Chloroform 100 ug/L 100 I OK TW4-41 Chloromethane 1.0 ug/L u 1 1 OK TW4-41 Methylene Chloride 1.0 ug/L u 1 I OK TW4-41 Nitrate + Nitrite as N 0.200 mg/L 2 0.1 OK TW4-42 Chloride 1.00 mg/L 1 l OK TW4-42 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-42 Chloroform 1.0 ug/L u l 1 OK TW4-42 Chloromethane 1.0 ug/L u 1 1 OK TW4-42 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-42 Nitrate+ Nitrite as N 0.100 mg/L 1 0.1 OK TW4-43 Chloride 1.00 mg/L 1 1 OK TW4-43 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-43 Chloroform 1.0 ug/L u 1 1 OK TW4-43 Chloromethane 1.0 ug/L u 1 1 OK I-5 Reporti ng Limit Check Lab Reporting Dilution Required Location Aoalyte Limit Units Qualifier Factor Reporting Limit RLCheck TW4-43 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-43 Nitrate+ Nitrite as N 0.100 mg/L 1 0.1 OK TW4-60 Chloride 1.00 rng/L u 1 I OK TW4-60 Carbon Tetrachloride 1.0 ug/L u 1 I OK TW4-60 Chlorofonn 1.0 ug/L u 1 1 OK TW4-60 Chloromethane 1.0 ug/L u 1 1 OK TW4-60 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-60 Nitrate + Nitrite as N 0.100 mg/L u 1 0.1 OK TW4-65 Chloride 1.00 mg/L 1 I OK TW4-65 Carbon Tetrachloride 1.0 ug/L u 1 I OK TW4-65 Chlorofonn 1.0 ug/L u 1 1 OK TW4-65 Chloromethane 1.0 ug/L u 1 1 OK TW4-65 Methylene Chloride 1.0 ug/L u 1 1 OK TW4-65 Nitrate+ Nitrite as N 0.500 rng/L 5 0.1 OK TW4-70 Chloride 1.00 mg/L 1 J OK TW4-70 Carbon Tetrachloride 1.0 ug/L u I 1 OK TW4-70 Chlorofonn 1.0 ug/L I I OK TW4-70 Chloromethane 1.0 ug/L u 1 1 OK TW4-70 Methylene Chloride 1.0 ug/L u 1 I OK TW4-70 Nitrate+ Nitrite as N 0.200 mg/L 2 0.1 OK TW4-75 Chloride 1.00 mg/L 1 1 OK TW4-75 Carbon Tetrachloride 1.0 ug/L u 1 1 OK TW4-75 Chlorofonn 1.0 ug/L u 1 I OK TW4-75 Chloromethane 1.0 ug/L u 1 1 OK TW4-75 Methylene Chloride 1.0 ug/L u 1 I OK TW4-75 Nitrate+ Nitrite as N 0.100 mg/L u I 0.1 OK I-6 Trip Blank Evaluation Lab Report Constituent Result Carbon tetrachloride ND ug/L 23H1109 Chlorofonn ND ug/L Chloromethane ND ug/L Methylene chloride ND ug/L Carbon tetrachloride ND ug/L 2311200 Chloroform ND ug/L Ch loromethane ND ug/L Methylene chloride ND ug/L Carbon tetrachloride ND ug/L 2312285 Chloroform ND ug/L ChJoromethane ND ug/L Methylene chloride ND ug/L I-7 QA/QC Evaluation for Sample Duplicates Constituent Chloride (mg/L) Nitrate+ Nitrite (as N) Carbon Tetrachloride Chloroform Ch loromethane Dichloromethane (Methylene Chloride) Constituent Chloride (mg/L) Nitrate+ Nitrite (as N) Carbon Tetrachloride Chloroform Ch lor◊methane Dichloromethane (Methylene Chloride) Constituent Chloride (mg/L) Nitrate+ Nitrite (as N) Carbon Tetrachloride Chloroform Chloromethane Dicbloromethane (Methylene Chloride) RPD = Relative Percent Difference ND = The analyte was not detected TW4-12 TW4-65 50.3 52.5 4.02 4.66 ND ND ND ND ND ND ND ND TW4-05 TW4-70 50.5 53.2 8.83 8.10 ND ND 9.1 8.8 ND ND ND ND MW-32 TW4-75 37.5 37.6 ND ND ND ND ND ND ND ND ND ND Highlighted cells indicate an RPD that exceeded the 20% RPD criteria %RPO 4.3 14.7 NC NC NC NC %RPO 5.2 8.6 NC 3.4 NC NC %RPO 0.3 NC NC NC NC NC l-8 QC Control Limits for Analysis and Blanks Method Blank Detections All Method Blanks (MB) for the quarter were nondetect. Matrix Spike % Recoveries MS MSD Lab Report Lab Sample ID Well Analyte %REC %REC 231-11109 BXH0702-MS I NIA Chloride* NC NC 231-11109 BXl-!0758-MS I TW4-25 Nitrate 84 84.5 23Hl 109 BXH0758-MS2 TW4-24 Nitrate 101 76.9 2311200 BXI II64-MS TW4-42 Chloride 117 122 23] 1200 BXI0843-MS2 TW4-33 Nitrate 126 124 2311200 BXI1247-MSI NIA Chloromethane 72.6 68.3 2312285 BXJ0055-MSI NIA Nitrate* NC NC 2312285 BXJ0055-MS2 MW-32 Nitrate 96.0 88.0 2312285 BX10384-MS-1 MW-32 Chloromclhanc 54.6 55.9 2312285 BXJ0465-MS-I NIA Chloromethane 54.7 58.9 NC -Not calculated All MSIMSD results for the quarter were wi1hin acceptance limits. * -Recovery was not calculated because the analyte in the sample was greater than 4 times the spike amount NI A = QC was not performed on an EFRl sample. Laborator Control Sample Lab Re ort Analyte LCS%REC RECRan e 2312285 Chloromethane 57.7 70-130 Surrogate % Recovery All Surrogate recoveries were within acceptance limits for the quarter. REC Range RPD RPDRaoge 80-120 NC 20 90-110 0.306 20 90-110 0.872 20 80-120 1.55 20 90-110 0.368 20 70-130 6.1 20 90-110 NC 20 90-110 8.70 20 70-130 2.35 20 70-130 7.39 20 I-9 Rinsate Evaluation Rinsate Rinsate Result Sample Parameter (ug/L) Previous Well Purged TW4-30R Chloroform 6.8 TW4-38 (N D) TW4-36R Chloroform 6.8 NA NA = This rinsate sample was collected prior to the first use of the pump. TabJ Kriged Current Quarter Chloroform Isoconcentration Map ti~ ,111w-21 ' EXPLANATION ~ Q • MW-0.2 N02O MIA_.20 ND2Q • f,lW.aA NS = not sampled; ND = not detected; ND 20 = not detected during 2nd quarter '-70 kriged chloroform isocon and label perched monitoring well Mi1J~ installed April, 2023 showing concentration in µg/L TW4-43 ~ND TWN-21 CINS TW4-42 ¢ND MW-32 e ND TW4-7 0 790 TWN-1 ~NS PIEZ-1 Q NS temporary perched monitoring well installed September, 2021 showing concentration in µg/L temporary perched nitrate monitoring well installed April, 2021 (not sampled) temporary perched monitoring well installed April, 2019 showing concentration In µg/L perched monitoring well showing concentration in µg/L temporary perched monitoring well showing concentration in µg/L temporary perched nitrate monitoring well (not sampled) perched piezometer (not sampled) N0i Q MW-29 A, I NS TWN-21 N02Q • MW.:01 abllJ'ldQned 1WN--0s NS NS a • ''TWN'20 ifW.N.07 N020 • MW-17 "'.I) MW-38 NO • MWlJ.1 bal\~O"Hf iwN-111 abant10Md • lWN-10 ab~n40ned ,+ lWN-11 ~ lWN•14 abjllldQned NQ.20 MW-11 ~ lWtl-18 ~ NS • TWN.0$ aNn,dlMd lWN.08 l'WN.,09 r,IS Pf&.01 NQ•20 lolW-19 • 'lWNl03 r"ils .... r.♦ lWN-01 TWA-18 56Cil irov~so··!!W+.'.N lt!!' 1_,,,,j1 ~ni 0ml If· ~~ ,w,i.12 .,. ~M <>NO If li\W•3.9 TW•~2"8 ~if"32 ,:W4-13 'f02 <>NP 'rn11,Y1'#/'w.,.,4 No Nil .......... ~--;, .0. M(.08 c',wws, • --_...._ tb\' M','J-32.~ ~ :;OliQ ~--~L.'ll.!A"',W441_ND . '-1 1!_20 ~ "IWA-14 N•Q MW"40' 2"1TW4-G1 --~·o '~ ~4-43 If. ND2Q MW-22 1 fl'.lile abandll!l1ld • lWfMZ NOTES: MW-4, MW-26, TW4-1 , TW4-2, TW4-4, 1W4-11, TW4-19, TW4-21 , 1W4-37, TW4-39, TW4-40 and TW4-41 are chloroform pumping wells; 1W4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells; MW-24A Installed December, 2019 HYDRO GED CHEM.INC. KRIGED 3rd QUARTER, 2023 CHLOROFORM (µg/L) WHITE MESA SITE APPROVED CATE R.EFERENCE H:n18000/nov23/chloroform/Uchl0923.srf FIGURE J-1 I rw4!24 0 66 NS= not sampled; ND= not detected; ND 2Q = not detected during 2nd quarter 1-0 TW4-43 ~ND kriged chloroform isocon and label temporary perched monitoring well installed September, 2021 showing concentration in µg/L TW4-42 temporary perched monitoring well ¢ ND installed April, 2019 showing concentration in µg/L MW-32 e ND TW4-7 0 790 PIEZ-2 &;j NS perched monitoring well showing concentration (µg/L) temporary perched monitoring well showing concentration (µg/L) perched piezometer (not sampled) .e:: T,WN-01 ONS O.;33rw4-27 51 ., 0 OTW4-31 " 3 ND TW4-29 OTW4-30 _8 .,. " ;rw4-3 0 '4-34 0 ND NOTES: MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 are chloroform pumping weUs; TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells HYDRO GED CHEM, INC. KRIGED 3rd QUARTER, 2023 CHLOROFORM (µg/L) WHITE MESA SITE (detail map) APPROVED CATE REFERENCE FIGURE H:/718000/nov23/chloroform/Uch0923det.srf I J-2 JW4-24 0 66 NS = not sampled; ND= not detected; ND 20 = not detected during 2nd quarter '.I", TW4-43 ~ND TW4-42 Q ND MW-32 e ND TW4-7 0 790 PIEZ-2 1;i NS kriged chloroform isocon and label temporary perched monitoring well installed September, 2021 showing concentration in µg/L temporary perched monitoring well installed April, 2019 showing concentration in µg/L perched monitoring well showing concentration (µg/L) temporary perched monitoring well showing concentration (µg/L) perched piezometer (not sampled) :,, ~, TW4-25 r-.. .~•ONO ,-:-;i- 1'W4-11 .050 . . ,· 0 •33rw4-27 51 . o· OTW4-3 • 3 ··ND TW4-29 01W4-30 0 1 48 .7rw, ~ 41..3,4 €) ND NOTES: MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 are chloroform pumping wells; TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells HYDRO GED CHEM. INC. 3rd QUARTER, 2023 CHLOROFORM GREATER THAN OR EQUAL TO 70 µg/L GRID WHITE MESA SITE A.PPROVEO DATE REFERENCE FIGURE H:/718000/nov23/chloroform/Uch0923ge70.srf I J-3 TabK Analyte Concentration Data and Chlorofonn Concentration Trend Graphs over Time Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-4 Tetrachloride (ug/1) (ue/1) (ug/1) Chloride (ug/1) (mg/I) (mg/I) 28-Sep-99 6200 28-Sep-99 5820 28-Sep-99 6020 15-Mar-00 5520 15-Mar-00 5430 2-Sep-00 5420 9.63 30-Nov-00 6470 9.37 29-Mar-01 4360 8.77 22-Jun-01 6300 9.02 20-Sep-01 5300 9.45 8-Nov-01 5200 8 26-Mar-02 4700 8.19 22-May-02 4300 8.21 12-Sep-02 6000 8.45 24-Nov-02 2500 8.1 28-Mar-03 2000 8.3 30-Apr-03 3300 NA 30-May-03 3400 8.2 23-Jun-03 4300 8.2 30-Jul-03 3600 8.1 29-Aug-03 4100 8.4 12-Sep-03 3500 8.5 15-Oct-03 3800 8.1 8-Nov-03 3800 8 29-Mar-04 NA NA 22-Jun-04 NA NA 17-Sep-04 3300 6.71 17-Nov-04 4300 7.5 16-Mar-05 2900 6.3 25-May-05 3170 NA NA NA 7.1 NA 31-Aug-05 3500 <1 0 <10 <10 7.0 NA l-Dec-05 3000 <50 <50 <50 7.0 NA 9-Mar-06 3100 <50 <50 50 6 49 14-Jun-06 3000 <50 <50 50 6 49 20-Jul-06 2820 <50 <50 <50 1.2 48 9-Nov-06 2830 2.1 1.4 <l 6.4 50 28-Feb-07 2300 1.6 <l <1 6.3 47 27-Jun-07 2000 1.8 <l <I 7 45 15-Aug-07 2600 1.9 <l <1 6.2 47 1 0-Oct-07 2300 1.7 <l <1 6.2 45 26-Mar-08 2400 1.7 <l <l 5.8 42 25-Jun-08 2500 1.6 <l <l 6.09 42 10-Sep-08 1800 1.8 <1 <l 6.36 35 l 5-Oct-08 2100 1.7 <l <1 5.86 45 Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-4 Tetrachloride (ug/1) (uwl)_ (ug/1) Chloride (ug/1) (mg/I) (mg/I) 4-Mar-09 2200 l.5 <1 <l 5.7 37 23-Jun-09 1800 l.3 <l <1 5.2 34 14-Sep-09 2000 1.4 <l <l 5.3 43 14-Dec-09 1800 l.6 ND ND 5.8 44 17-Feb-10 1600 1.2 ND ND 4 45 14-Jun-10 2100 1.2 ND ND 5.1 41 16-Aug-10 1900 1.5 ND ND 4.8 38 11-Oct-10 1500 1.4 ND ND 4.9 41 23-Feb-ll 1700 1.5 ND ND 4.6 40 1-Jun-11 1700 1.4 ND ND 4.9 35 l 7-Aug-11 1700 1.1 ND ND 4.9 41 16-Nov-11 1600 l.3 ND ND 5.1 40 23-Jan-12 1500 1 ND ND 4.8 41 6-Jun-12 1400 1.2 ND ND 4.9 39 4-Sep-12 1500 l.5 ND ND 5 41 4-Oct-12 1300 1 ND ND 4.8 42 11-Feb-13 1670 1.49 ND ND 4.78 37.8 5-Jun-13 1490 l.31 ND ND 4.22 44 3-Sep-13 1520 1.13 ND ND 4.89 41.4 29-Oct-13 1410 5.58 ND ND 5.25 40.1 27-Jan-l 4 1390 4.15 ND ND 4.7 38.5 19-May-14 1390 5.21 ND ND 4.08 39.9 24-Aug-14 1490 ND 7.6 ND 3.7 41 21-Oct-14 1440 ND ND ND 5.07 41.5 9-Mar-15 1400 1.26 ND ND 5.75 40.7 8-Jun-15 1300 ND ND ND 2.53 43.1 31-Aug-15 1290 ND ND ND 4.79 44.3 19-Oct-15 1200 ND ND ND 4.43 40.8 9-Mar-16 1240 ND ND ND 5.15 42.2 23-May-16 1580 l.44 ND ND 4.54 43.7 25-Jul-16 1430 ND ND ND 4.95 42 .5 12-Oct-16 1470 1.24 ND ND 4.88 44.8 8-Mar-17 1450 1.22 ND ND 4.99 43.3 13-Jun-17 1430 1.15 ND ND 4.88 44.0 26-Jul-l 7 1400 1.15 ND ND 4.59 43.8 1 l-Oct-17 1320 ND ND ND 5.25 43.8 12-Mar-l 8 1320 1.07 ND ND 4.47 46.2 8-Jun-18 1240 ND ND ND 4.64 43.5 22-Aug-18 1300 ND ND ND 4.55 48.5 28-Nov-18 1330 ND ND ND 4.44 43 .1 8-Mar-19 1190 ND ND ND 5.05 41.5 5-Jun-19 1300 ND ND ND 5.16 40.6 4-Sep-19 1180 ND ND ND 4.69 41.9 l l-Dec-19 1370 ND ND ND 4.34 45.5 Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-4 Tetrachloride (ug/1) (u2/l) (ug/1) Chloride (ug/1) (mg/I) (mg/I) 19-Feb-20 1230 ND ND ND 6.22 48.1 27-May-20 1250 ND ND ND 5.04 40.7 4-Sep-20 1240 ND ND ND 4.93 43.8 28-Oct-20 1050 ND ND ND 4.62 41.4 23-Feb-21 1150 ND ND ND 4.61 46.5 9-Jun-21 1320 ND ND ND 6.48 34.8 24-Aug-21 1140 ND ND ND 3.83 43.2 l-Dec-21 1100 ND ND ND 4.9 47.6 9-Mar-22 1040 ND ND ND 4.8 40.9 8-Jun-22 1010 ND ND ND 3.9 43.7 30-Aug-22 1200 ND ND ND 4.20 44.7 30-Nov-22 1170 ND ND ND 4.05 35.9 7-Mar-23 1010 ND ND ND 4.44 29.4 13-Jun-23 1050 ND 2.0 ND 4.20 37.0 9-Aug-23 1030 ND ND ND 3.90 44.7 0 ....,. 0 0 0 "' 0 0 0 (ug/L) (,.) 0 0 0 .i:,.. 0 0 0 c.n 0 0 0 0) 0 0 0 -.J 0 0 0 Sep-99 +----+---+----+---+--.-----+--_....,..,. __ ----1 Mar-00 Sep-00 Mar-01 Sep-01 Mar-02 Sep-02 ~~~~H I f 1 :t I': Mar-05 j Sep-05 Mar-06 Sep-06 Mar-07 Sep-07 Mar-08 Sep-08 - Mar-09 - Sep-09 Mar-10 Sep-10 Mar-11 - Sep-11 Mar-12 Sep-12 - Mar-13 Sep-13 Mar-14 Sep-14 Mar-15 Sep-15 Mar-16 Sep-16 Mar-17 Sep-17 Mar-18 Sep-18 Mar-19 Sep-19 Mar-20 Sep-20 Mar-21 Sep-21 Mar-22 Sep-22 Mar-23 s: ~ I 0 ::J"' 0 a o' -, 3 ~ C CD en Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-1 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/1) (ug/1) 28-Jun-99 1700 7.2 10-Nov-99 5.8 15-Mar-0O 1100 10-Apr-00 1490 6-Jun-00 1530 2-Sep-00 2320 5.58 30-Nov-0O 3440 7.79 29-Mar-0l 2340 7.15 22-Jun-0l 6000 8.81 20-Sep-0l 12.8 8-Nov-01 3200 12.4 26-Mar-02 3200 13 .1 22-May-02 2800 12.7 12-Sep-02 3300 12.8 24-Nov-02 3500 13 .6 28-Mar-03 3000 12.4 23-Jun-03 3600 12.5 12-Sep-03 2700 12.5 8-Nov-03 3400 11.8 29-Mar-04 3200 11 22-Jun-04 3100 8.78 l 7-Sep-04 2800 10.8 l 7-Nov-04 3000 I I.I 16-Mar-05 2700 9.1 25-May-05 3080 NA NA NA 10.6 NA 3 l-Aug-05 2900 <IO <IO <10 9.8 NA l -Dec-05 2400 <50 <50 <50 9.7 NA 9-Mar-06 2700 <50 <50 <50 9.4 49 14-Jun-06 2200 <50 <50 <50 9.8 48 20-Jul-06 2840 <50 <50 <50 9.7 51 8-Nov-06 2260 1.4 <I <I 9.4 47 28-Feb-07 1900 1.2 <I <I 8.9 47 27-Jun-07 1900 1.4 <I <I 9 45 15-Aug-07 2300 1.3 <I <I 8.4 43 10-Oct-07 2000 1.3 <I <I 7.8 43 26-Mar-08 2000 1.3 <I <I 7.6 39 25-Jun-08 1900 I.I <I <l 8.68 39 10-Sep-08 1700 1.3 <I <I 8.15 35 l 5-Oct-08 1700 1.3 <I <I 9.3 41 ' Carbon Methylene TW4-1 Chloroform Tetrachloride Chloromethane Chloride Nitrate Chloride (ug/1) (ug/1) (ug/1) (ug/1) (mg/I) (mg/I) l l-Mar-09 1700 1.1 <l <1 7.5 37 24-Jun-09 1500 1 <l <1 6.9 37 l 5-Sep-09 1700 <l <1 <1 7.3 36 29-Dec-09 1400 <1 <1 <1 6.8 41 3-Mar-10 1300 <l <1 <1 7.1 35 15-Jun-10 1600 1.2 <l <l 6.8 40 24-Aug-10 1500 <l <1 <l 6.8 35 14-Oct-l 0 1500 <1 <l <1 6.6 40 24-Feb-l l 1300 ND ND ND 6.6 41 l-Jun-11 1200 ND ND ND 7 35 18-Aug-11 1300 ND ND ND 6.8 36 29-Nov-11 1300 ND ND ND 6.6 37 19-Jan-12 1300 ND ND ND 6.8 38 14-Jun-12 1000 ND ND ND 7.1 42 13-Sep-12 1000 ND ND ND 5 39 4-Oct-12 1100 ND ND ND 6.5 40 13-Feb-13 1320 3.66 ND ND 6.99 37.6 19-Jun-13 1100 ND ND ND 6.87 39.1 12-Sep-13 1150 ND ND ND 7.12 37.6 14-Nov-13 1280 ND ND ND 7.08 36.5 5-Feb-14 1090 5.47 ND ND 7.74 38.9 23-May-14 1020 4.77 ND ND 6.93 37.4 27-Aug~14 845 ND 1.4 ND 4.8 38 29-Oct-14 1140 ND ND ND 6.31 38.7 9-Mar-15 1130 ND ND ND 7.06 38.3 8-Jun-15 1260 ND ND ND 6.07 40.3 31-Aug-15 1060 ND ND ND 6.28 45.9 19-Oct-15 1040 ND ND ND 1.55 38.5 9-Mar-16 974 ND ND ND 0.148 41.7 23-May-16 1140 ND ND ND 0.138 44.4 25-Jul-16 1160 ND ND ND 5.49 44.7 13-Oct-16 1330 ND ND ND 0.746 44.2 8-Mar-17 519 ND ND ND 4.44 41.5 13-Jun-17 977 ND ND ND 5.74 41.8 26-Jul-17 958 ND ND ND 5.04 42.8 l l-Oct-17 556 ND ND ND 5.78 38.5 12-Mar-18 70.4 ND ND ND 4.84 45.8 8-Jun-18 942 ND ND ND 4.38 42.0 22-Aug-18 1010 ND ND ND 4.30 47.3 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-1 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/1) (ug/1) 22-Oct-18 752 ND ND ND 4.57 43.2 8-Mar-19 87.2 ND ND ND 4.51 40.9 5-Jun-19 1040 ND ND ND 1.43 44.8 4-Sep-19 894 ND ND ND 1.65 46.0 1 0-Dec-19 1070 ND ND ND 3.91 44.2 19-Feb-20 1190 ND ND ND 4.67 47.5 27-May-20 499 ND ND ND 0.443 46.4 4-Sep-20 1060 ND ND ND 2.22 43.7 28-Oct-20 924 ND ND ND 4.30 41.9 23-Feb-21 948 ND ND ND 27.2 45.4 9-Jun-21 957 ND ND ND 0.728 37.2 24-Aug-21 821 ND 1.18 ND 1.38 44.5 l-Dec-21 957 ND ND ND 4.37 45.5 9-Mar-22 946 ND ND ND 3.9 42.6 8-Jun-22 914 ND ND ND 0.18 45.5 30-Aug-22 954 ND ND ND 0.420 45.1 30-Nov-22 1010 ND ND ND 3.62 38.2 7-Mar-23 928 ND ND ND 1. 71 43.8 l 3-Jun-23 830 ND 1.1 ND 3.87 42.5 9-Aug-23 891 ND 1.1 ND 3.83 44.6 _. N 0 0 0 0 0 0 0 28-Jun-99 28-Dec-99 28-Jun-00 28-Dec-00 28-Jun-01 28-Dec-01 28-Jun-02 28-Dec-02 28-Jun-03 28-Dec-03 28-Jun-04 28-Dec-04 28-Jun-05 28-Dec-05 28-Jun-06 28-Dec-06 28-Jun-07 28-Dec-07 28-Jun-08 28-Dec-08 28-Jun-09 28-Dec-09 28-Jun-10 28-Dec-10 28-Jun-11 28-Dec-11 28-Jun-12 28-Dec-12 28-Jun-13 28-Dec-13 28-Jun-14 28-Dec-14 28-Jun-15 28-Dec-15 28-Jun-16 28-Dec-16 28-Jun-17 28-Dec-17 28-Jun-18 28-Dec-18 28-Jun-19 28-Dec-19 28-Jun-20 28-Dec-20 28-Jun-21 28-Dec-21 28-Jun-22 28-Dec-22 28-Jun-23 (ug/L) w 0 0 0 ~ 0 0 0 u, 0 0 0 O> 0 0 0 -.J 0 0 0 i I -0 :::r 0 a o' ... 3 < D) C: Cl) UI Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-2 (og/1) Tetrachloride (og/1) Chloride (mg/I) (mg/I) (02/0 (02/1) 10-Nov-99 2510 2-Sep-00 5220 28-Nov-00 4220 10.7 29-Mar-0l 3890 10.2 22-Jun-0l 5500 9.67 20-Sep-01 4900 11.4 8-Nov-01 5300 10.1 26-Mar-02 5100 9.98 23-May-02 4700 9.78 12-Sep-02 6000 9.44 24-Nov-02 5400 10.4 28-Mar-03 4700 9.5 23-Jun-03 5100 9.6 12-Sep-03 3200 8.6 8-Nov-03 4700 9.7 29-Mar-04 4200 9.14 22-Jun-04 4300 8.22 l 7-Sep-04 4100 8.4 l 7-Nov-04 4500 8.6 16-Mar-05 3700 7.7 25-May-05 3750 8.6 3 l-Aug-05 3900 <10 <10 <10 8 NA 1-Dec-05 3500 <50 <50 <50 7.8 NA 9-Mar-06 3800 <50 <50 <50 7.5 56 14-Jun-06 3200 <50 <50 <50 7.1 56 20-Jul-06 4120 <50 <50 <50 7.4 54 8-Nov-06 3420 2.3 <1 <l 7.6 55 28-Feb-07 2900 1.8 <1 <1 7.3 54 27-Jun-07 3000 2.5 <l <l 7.8 50 15-Aug-07 340 2.2 <1 <l 7.3 49 1 0-Oct-07 3200 2.1 <l <l 6.9 51 26-Mar-08 3300 2.3 <1 <l 6.9 48 25-Jun-08 3100 2.2 <l <l 7.44 46 10-Sep-08 2800 2.4 <1 <l 7.1 42 15-Oct-08 3200 2.4 <2 <2 7.99 47 l l-Mar-09 3100 2.2 <1 <l 6.5 46 24-Jun-09 2800 2 <1 <l 6.4 44 15-Sep-09 3000 2 <1 <I 6.6 43 29-Dec-09 1600 2 <1 <I 6.4 46 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-2 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2/l) (02/1) 3-Mar-10 2600 2 <I <I 6.8 42 15-Jun-10 3300 2.6 <1 <I 6.7 43 16-Aug-l0 3300 2.5 <I <I 6.6 43 14-Oct-10 3000 2.1 <l <1 6.5 41 24-Feb-l l 3100 2.4 ND ND 7 46 2-Jun-11 3000 2.2 ND ND 6.8 42 17-Aug-l l 2400 1.6 ND ND 6 48 29-Nov-ll 3900 2.8 ND ND 7 49 24-Jan-12 2500 2 ND ND 7.1 49 14-Jun-12 2500 2.1 ND ND 7.7 52 13-Sep-12 2900 1.8 ND ND 4 76 4-Oct-12 3100 2 ND ND 7.6 49 13-Feb-13 3580 5.17 ND ND 8.1 46 19-Jun-13 3110 2.65 ND ND 7.51 46.9 12-Sep-13 3480 2.41 ND ND 9.3 44.9 14-Nov-13 3740 3.15 ND ND 8.39 43.9 6-Feb-14 3180 7.1 ND ND 7.87 45.9 23-May-14 2930 6.05 ND ND 9.11 45.4 27-Aug-14 3170 1.4 3.6 ND 6.2 45 30-Oct-14 3580 2.6 ND ND 8.45 45.5 9-Mar-15 1840 1.44 ND ND 5.32 44.9 8-Jun-15 1650 ND ND ND 4.3 48.1 31-Aug-15 1310 ND ND ND 3.76 50.0 19-Oct-l 5 2070 ND ND ND 5.18 41.9 9-Mar-16 1970 1.20 ND ND 5.30 43.4 23-May-16 2070 1.49 ND ND 5.67 43.8 25-Jul-16 1780 ND ND ND 4.07 42.9 12-Oct-16 1600 ND ND ND 6.07 44.3 8-Mar-17 1570 ND ND ND 4.74 43.1 13-Jun-17 1940 ND ND ND 4.90 43.6 26-Jul-l 7 1310 ND ND ND 5.08 43.2 11-Oct-l 7 1610 ND ND ND 3.28 43.5 12-Mar-18 764 ND ND ND 2.94 44.4 8-Jun-18 949 ND ND ND 3.50 41.3 22-Aug-18 980 ND ND ND 4.83 44.3 28-Nov-18 822 ND ND ND 3.52 41.7 8-Mar-19 1040 ND ND ND 3.92 40.4 5-Jun-19 1360 ND ND ND 4.38 39.8 4-Sep-19 797 ND ND ND 4.79 40.8 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-2 (ug/1) Tetrachloride (ug/1) Chloride (mg/1) (mg/1) (02/1) Ju2/l) · 1 0-Dec-19 934 ND ND ND 3.40 41.5 19-Feb-20 1880 ND ND ND 6.07 42.1 27-May-20 1070 ND ND ND 3.62 40.6 4-Sep-20 1260 ND ND ND 3.35 41.3 28-Oct-20 1130 ND ND ND 2.34 38.7 23-Feb-21 939 ND ND ND 3.30 43.3 9-Jun-21 1160 ND ND ND 3.89 32.5 24-Aug-21 1150 ND ND ND 1.97 36.8 I-Dec-21 852 ND ND ND 3.49 41.9 9-Mar-22 1020 ND ND ND 3.3 36.7 8-Jun-22 892 ND ND ND 3.1 39.5 30-Aug-22 832 ND ND ND 3.07 40.7 30-Nov-22 1030 ND ND ND 3.74 35.5 7-Mar-23 772 ND ND ND 2.03 41.4 13-Jun-23 788 ND 1.2 ND 3.70 38.1 9-Aug-23 867 ND ND ND 3.23 41.2 (ug/L) Nov-99 , - g,ar~o o cO-CD-w g:Q-<"~iii :::,~CO"C 0 ::J -, 0 oo' "'l a.~ -· o'""'CDO;:t o~ro-<"" -, -, C/l CD o Q !:!:co~ -. 3 C/l CD -'-5wcC/l ~-ro6i'~ (") a.. -g a.-i~ C/l C ::::r a:CDro8 (I) -<-, -, 0 Ill -, s· -m <C ~ "C --· 0 ::::r (/):::, May-00 Nov-00 May-01 Nov-01 May-02 Nov-02 May-03 Nov-03 May-04 • Nov-04 May-05 Nov-05 - May-06 Nov-06 May-07 Nov-07 - May-08 ·• Nov-08 May-09 Nov-09 May-10 Nov-10 May-11 Nov-11 May-12 Nov-12 May-13 Nov-13 May-14 Nov-14 May-15 Nov-15 May-16 Nov-16 May-17 Nov-17 May-18 Nov-18 May-19 Nov-19 May-20 Nov-20 May-21 Nov-21 May-22 Nov-22 ro a. I (/) . May-23 : 0 _._ 0 0 0 N 0 0 0 (,.) 0 0 0 .i:,. 0 0 0 01 0 0 0 0) 0 0 0 ---.I 0 0 0 i I I',) 0 ::::r 0 0 o' ., 3 < I» C Cl) UI Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-3 {ug/1) Tetrachloride {ug/1) Chloride (mg/I) (mg/I) (uwl) (u2/I) 28-Jun-99 3500 7.6 29-Nov-99 702 15-Mar-00 834 2-Sep-00 836 1.56 29-Nov-00 836 1.97 27-Mar-0l 347 1.85 21-Jun-01 390 2.61 20-Sep-0l 300 3.06 7-Nov-01 170 3.6 26-Mar-02 11 3.87 21-May-02 204 4.34 12-Sep-02 203 4.32 24-Nov-02 102 4.9 28-Mar-03 0 4.6 23-Jun-03 0 4.8 12-Sep-03 0 4.3 8-Nov-03 0 4.8 29-Mar-04 0 4.48 22-Jun-04 0 3.68 l 7-Sep-04 0 3.88 l 7-Nov-04 0 4.1 16-Mar-05 0 3.5 25-May-05 <l NA NA NA 3.7 NA 3 l-Aug-05 <l <l 6.4 <l 3.5 NA l-Dec-05 <l <l 2.3 <l 3.3 NA 9-Mar-06 <l <l 2.2 <1 3.3 26 14-Jun-06 <l <l <l <l 3.2 26 20-Jul-06 <l <l 1.6 <l 2.9 26 8-Nov-06 <l <l <l <l 1.5 23 28-Feb-07 <l <l <l <l 3.1 22 27-Jun-07 <l <l <1 <l 3.3 23 15-Aug-07 <l <l <l <l 3.1 24 1 0-Oct-07 <l <l <l <l 2.8 27 26-Mar-08 <l <l <l <l 2.8 21 25-Jun-08 <l <l <l <l 2.85 19 10-Sep-08 <l <l <l <l 2.66 19 l 5-Oct-08 <l <l <l <l 2.63 22 4-Mar-09 <l <l <l <l 2.5 21 24-Jun-09 <l <l <l <l 2.9 20 15-Sep-09 <l <l <1 <l 2.8 21 16-Dec-09 <l <l <l <l 2.5 22 II Carbon Methylene Chloroform Chloromethane Nitrate Chloride TW4-3 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) _(u2,ll) (02/ll 23-Feb-l0 <I <I <I <I 2.8 23 8-Jun-10 <I <l <I <l 3 24 10-Aug-l0 <I <1 <l <l 3.1 22 5-Oct-10 <I <I <1 <l 3.3 26 15-Feb-l l ND ND ND ND 3.5 23 25-May-ll ND ND ND ND 3.7 23 16-Aug-l l ND ND ND ND 4 23 15-Nov-l l ND ND ND ND 4.4 23 I 7-Jan-12 ND ND ND ND 4.3 21 31-May-12 ND ND ND ND 4.4 24 29-Aug-12 ND ND ND ND 4.9 25 3-Oct-12 ND ND ND ND 4.8 25 7-Feb-13 ND ND ND ND 5.05 23.7 29-May-13 ND ND ND ND 5.83 23.8 29-Aug-13 ND ND ND ND 6.26 24.0 6-Nov-13 ND ND ND ND 5.89 24.1 22-Jan-14 ND ND ND ND 6.66 24.9 19-May-14 ND ND ND ND 6.01 24.4 13-Aug-14 ND ND ND ND 5.3 26 23-Oct-14 ND ND ND ND 6.07 26.7 1 l-Mar-15 ND ND ND ND 6.64 26.2 10-Jun-15 ND ND ND ND 5.71 27.5 2-Sep-15 ND ND ND ND 3.88 27.4 21-Oct-15 ND ND ND ND 5.37 25.6 15-Mar-16 ND ND ND ND 5.83 32.8 25-May-16 ND ND ND ND 5.65 27.9 27-Jul-16 ND ND ND ND 6.10 26.5 l 9-Oct-16 ND ND ND ND 6.00 29.5 14-Mar-17 ND ND ND ND 6.18 28.1 14-Jun-l 7 ND ND ND ND 6.36 28.7 27-Jul-17 ND ND ND ND 6.36 28.5 10-Oct-17 ND ND ND ND 6.32 25.9 14-Mar-18 ND ND ND ND 6.46 29.8 12-Jun-18 ND ND ND ND 6.52 26.1 29-Aug-18 ND ND ND ND 5.53 31.0 30-Nov-18 ND ND ND ND 5.85 27.4 13-Mar-19 ND ND ND ND 5.82 25.5 13-Jun-19 ND ND ND ND 6.68 27.4 ll-Sep-19 ND ND ND ND 5.12 26.0 12-Dec-19 ND ND ND ND 5.91 28.0 17-Mar-20 ND ND ND ND 6.15 27.7 Chloroform Carbon Cbloromethane Methylene Nitrate Chloride TW4-3 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwl) (ue/1) 10-Jun-20 ND ND ND ND 6.53 26.2 17-Sep-20 ND ND ND ND 6.36 25.9 4-Nov-20 ND ND ND ND 6.02 24.9 l 7-Mar-21 ND ND ND ND 6.19 28.4 l 5-Jun-21 ND ND ND ND 8.04 27.0 15-Sep-21 ND ND ND ND 5.28 20.3 7-Dec-21 ND ND ND ND 5.97 26.2 15-Mar-22 ND ND ND ND 6.1 24.3 l 5-Jun-22 ND ND ND ND 5.8 26.7 13-Sep-22 ND ND ND ND 5.47 27.3 7-Dec-22 ND ND ND ND 6.64 21.5 22-Mar-23 ND ND ND ND 6.09 20.6 l 5-Jun-23 ND ND ND ND 6.38 23.5 9-Aug-23 ND ND ND ND 6.40 26.9 u, G) :::, ~ E ... .E 0 ... 0 .c: 0 C'? ~ 0 a ci ci 0 a 0 Lt) v ('I') C: 0 ·-..... u cu ..... cu "'C cu .c ..... C: M 0 ta 0 .c N ..... u, ... 00 u, cu N .c C: u cu I.. cu ta .c ~ u, cu ta u .c C: M ·-I u, q" ..... ·-3 E I-·-- 0 ci 0 a ('I') ' 0 a 0 0 ci ci ci ci 0 0 0 0 Lt) a Lt) 0 N N ..... ..... (7/6n) ► •• ► '. ► '. ► •• • • t ' • • • • • '. 't • • u • ~ if • • .t • ~ '. • t • ' . . • ' .. ' .. u ' .. '. .. 0 .. ' ◄ : ' a ◄' ◄ : ' ., c-? . 0 a ci ci a Lt) £z-unr zz;-oaa z;z;-unr ~z;-oaa ~ z;-unr oz;-oaa oz-unr 6~-oaa 6~-unr s~-oaa s~-unr H-oaa H-unr g~-oaa g~-unr g~-oaa g~-unr v~-oaa v~-unr £~-oaa o -unr z~-oaa z~-unr ~ ~-oaa ~ ~-unr o~-oaa o~-unr 60-oaa so-unr so-oaa so-unr Lo-oaa Lo-unr go-oaa go-unr go-oaa go-unr vo-oaa vo-unr £0-oaa rn-unr zo-oaa zo-unr ~o-oaa ~o-unr oo-oaa oo-unr 55-oaa 6s-unr Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-4 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uf!/1) (uf!/1) 6-Jun-00 0 2-Sep-00 0 28-Nov-O0 3.9 28-Mar-01 2260 1.02 20-Jun-Ol 3100 14.5 20-Sep-Ol 3200 14 8-Nov-01 2900 14.8 26-Mar-02 3400 15 22-May-02 3200 13.2 12-Sep-02 4000 13.4 24-Nov-02 3800 12.6 28-Mar-03 3300 13.4 23-Jun-03 3600 12.8 12-Sep-03 2900 12 .3 8-Nov-03 3500 12.3 29-Mar-04 3200 12.2 22-Jun-04 3500 12.1 17-Sep-04 3100 11.1 17-Nov-04 3600 10.8 16-Mar-05 3100 11.6 25-May-05 2400 NA NA NA 11.3 NA 3 l-Aug-05 3200 <10 <IO <10 9.9 NA l-Dec-05 2800 <50 <50 <50 10.2 NA 9-Mar-06 2900 <50 <50 <50 9.5 51 14-Jun-06 2600 <50 <50 <50 8.6 48 20-Jul-06 2850 <50 <50 <50 9.7 50 8-Nov-06 2670 1.7 <1 <l 10.1 49 28-Feb-07 2200 1.5 <l <l 9 49 27-Jun-07 2400 1.7 <1 <1 9.4 47 15-Aug-07 2700 1.5 <l <1 9.5 45 10-Oct-07 2500 1.5 <I <l 9.5 47 26-Mar-08 2800 1.6 <1 <l 9.2 43 25-Jun-08 2500 1.5 <I <l 10.8 42 I0-Sep-08 2200 1.4 <1 <1 8.83 39 15-Oct-08 2500 2 <2 <2 10.1 44 4-Mar-09 2200 1.2 <l <l 10.2 37 24-Jun-09 1800 1.2 <l <I 8.2 34 15-Sep-09 2000 1.1 <l <l 8.4 39 29-Dec-09 950 1.1 <l <l 7.6 41 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-4 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (112'1) (02/1) l 7-Feb-10 1700 1 <l <l 6.6 48 10-Jun-10 2000 1.2 <l <l 7.6 35 16-Aug-10 2100 1.3 <l <l 7.3 36 11-Oct-l 0 1700 1.3 <l <I 7.1 38 23-Feb-l l 1800 1.4 ND ND 7 41 l-Jun-11 1700 1.2 ND ND 7 35 17-Aug-l l 1500 ND ND ND 6.6 40 16-Nov-l l 1500 1 ND ND 7 39 23-Jan-12 1200 ND ND ND 7.1 38 6-Jun-12 1500 ND ND ND 7.1 43 4-Sep-12 1600 1.2 ND ND 7.1 39 3-Oct-12 1400 1 ND ND 7 38 l l-Feb-13 1460 1.12 ND ND 7.36 39 5-Jun-13 1330 ND ND ND 6.3 39.6 3-Sep-13 1380 ND ND ND 7.22 38.8 29-Oct-13 1360 5.3 ND ND 7.84 43.9 27-Jan-14 1260 3.88 ND ND 7.28 37.4 19-May-14 1220 5 ND ND 5.91 47.5 l l-Aug-14 1320 ND 7 ND 5.30 40.0 21-Oct-14 1130 ND ND ND 7.02 40.0 9-Mar-15 1350 1 ND ND 7.70 37.6 8-Jun-15 1280 ND ND ND 6.33 41.3 31-Aug-15 1220 ND ND ND 6.45 45.8 19-Oct-15 1190 ND ND ND 6.27 38.5 9-Mar-16 1190 ND ND ND 6.71 39.7 23-May-16 1780 1 ND ND 6.56 41.9 26-Jul-16 1380 ND ND ND 7.22 40.2 13-Oct-16 1430 ND ND ND 6.77 42.3 8-Mar-17 1290 ND ND ND 6.87 41.7 13-Jun-l 7 1290 ND ND ND 7.06 40.7 26-Jul-17 1290 ND ND ND 6.47 40.5 l l-Oct-17 1290 ND ND ND 6.90 40.7 12-Mar-18 1160 ND ND ND 6.12 42.2 8-Jun-18 1050 ND ND ND 6.34 39.0 22-Aug-18 1030 ND ND ND 6.34 39.0 28-Nov-18 1140 ND ND ND 6.02 41.4 8-Mar-19 1050 ND ND ND 7.26 38.3 5-Jun-19 1070 ND ND ND 10.40 38.5 4-Sep-19 989 ND ND ND 6.32 39.8 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-4 (ug/1) Tetrachloride (ug/1) Chloride (mg/1) (mg/I) (ue/1) (ue/1) 10-Dec-19 1140 ND ND ND 6.52 40.4 19-Feb-20 1100 ND ND ND 4.58 43.4 27-May-20 1140 ND ND ND 7.26 46.1 4-Sep-20 1110 ND ND ND 7.04 40.0 28-Oct-20 979 ND ND ND 6.77 38.6 23-Feb-21 1130 ND ND ND 6.75 39.8 9-Jun-21 1240 ND ND ND 9.02 39.4 24-Aug-21 1100 ND ND ND 4.00 39.6 l-Dec-21 950 ND ND ND 7.32 42.5 9-Mar-22 1010 ND ND ND 6.6 37.1 8-Jun-22 1110 ND ND ND 6.0 39.9 30-Aug-22 1040 ND ND ND 6.65 41.0 30-Nov-22 1030 ND ND ND 6.59 29.6 7-Mar-23 945 ND ND ND 7.12 30.2 13-Jun-23 1980 ND 1.9 ND 6.82 39.7 9-Aug-23 1020 ND 1.9 ND 6.08 40.6 -oz-unr-s~ in a, :, v~-::>aa-a ns > E ... a 0 ... .2 z~-Jdy-~ .c 0 "=i" I "=i" ~ -60-1nr-9 -vo-uer-v~ -~Q-JdV-6~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 It) 0 It) 0 It) 0 It) 0 It) "'1" "'1" C") C") N N ..-..- (716n) Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-5 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ul!fl) (02/1) 20-Dec-99 29.5 15-Mar-00 49.0 2-Sep-00 124 29-Nov-0O 255 28-Mar-01 236 20-Jun-0l 240 20-Sep-0l 240 7-Nov-01 260 26-Mar-02 260 22-May-02 300 12-Sep-02 330 24-Nov-02 260 28-Mar-03 240 23-Jun-03 290 12-Sep-03 200 8-Nov-03 240 29-Mar-04 210 22-Jun-04 200 17-Sep-04 150 17-Nov-04 180 16-Mar-05 120 25-May-05 113 NA NA NA 3.70 NA 31-Aug-05 82.0 <2.5 5.8 <2 .5 6.00 NA l-Dec-05 63.0 <2.5 2.5 <2.5 6.00 NA 9-Mar-06 66.0 <2.5 3.1 <2.5 6.00 52 14-Jun-06 51.0 <l <2.5 <2.5 5.90 51 20-Jul-06 53.7 <l <l <l 6.70 54 8-Nov-06 47.1 <1 <1 <I 2.90 55 28-Feb-07 33.0 <l <l <I 7.80 57 27-Jun-07 26.0 <l <l <I 7.00 45 15-Aug-07 9.2 <l <l <I 7.70 38 10-Oct-07 9.4 <l <l <I 8.20 39 26-Mar-08 11.0 <l <l <I 7.40 36 25-Jun-08 9.3 <l <l <l 8.70 37 10-Sep-08 11.0 <l <l <l 7.91 34 15-Oct-08 10.0 <l <l <l 9.30 37 4-Mar-09 12.0 <l <l <l 7.90 34 24-Jun-09 13.0 <l <l <l 7.50 37 15-Sep-09 12.0 <l <l <l 8.30 48 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-5 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2/I) (u2/I) 22-Dec-09 8.5 <l <l <l 7.50 41 25-Feb-10 13.0 <l <l <I 6.80 43 9-Jun-l 0 12.0 <l <I <I 7.10 28 11-Aug-I0 12.0 <1 <I <I 7.00 38 13-Oct-10 11.0 <l <I <I 7.20 41 22-Feb-l l 10.0 ND ND ND 7.00 34 26-May-l I 9.0 ND ND ND 7.20 35 17-Aug-1 I 10.0 ND ND ND 7.50 37 7-Dec-11 7.9 ND ND ND 6.00 30 18-Jan-12 7.6 ND ND ND 5.80 22 6-Jun-12 8.4 ND ND ND 8.00 39 l l-Sep-12 12.0 ND ND ND 8.10 37 3-Oct-12 8.0 ND ND ND 7.70 38 13-Feb-13 10.8 ND ND ND 8.24 34.3 13-Jun-13 11.2 ND ND ND 10.70 36.5 5-Sep-13 11.6 ND ND ND 7.79 39.l 13-Nov-13 14.4 ND ND ND 7.75 41. l 30-Jan-14 12.5 ND ND ND 9.16 40.5 22-May-14 13.4 ND ND ND 7.78 51.4 14-Aug-14 12.0 ND ND ND 7.20 44 28-Oct-14 14.6 ND ND ND 8.31 45.l 12-Mar-15 13.8 ND ND ND 9.32 45.l IO-Jun-IS 13.3 ND 1.07 ND 7.08 47.3 3-Sep-15 12.9 ND ND ND 8.10 52.2 28-Oct-15 11.0 ND ND ND 8.03 43.6 l 7-Mar-16 11.0 ND ND ND 10.20 44.7 26-May-16 13.6 ND ND ND 8.98 45.9 25-Jul-16 10.8 ND ND ND 8.49 44.6 26-Oct-16 10.8 ND ND ND 8.32 47.8 15-Mar-l 7 12.6 ND ND ND 8.49 44.7 l 5-Jun-17 14.6 ND ND ND 8.52 47.3 2-Aug-17 14.6 ND ND ND 8.52 48.6 10-Oct-l 7 13.8 ND ND ND 8.57 42.5 15-Mar-18 15.2 ND ND ND 8.36 51.2 13-Jun-18 13.9 ND ND ND 9.24 47.4 30-Aug-18 15.4 ND ND ND 7.34 54.7 12-Dec-18 15.6 ND ND ND 7.67 49.8 16-Mar-19 14.1 ND ND ND 7.38 47.6 13-Jun-l 9 15.8 ND ND ND 7.62 49.3 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-5 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwl) (ug/1) II-Sep-19 14.6 ND ND ND 7.02 46.1 14-Dec-19 15.7 ND ND ND 6.97 53.1 l 7-Mar-20 14.8 ND ND ND 7.10 48.3 l l-Jun-20 15.4 ND ND ND 7.83 49.5 18-Sep-20 14.8 ND ND ND 6.37 47.0 4-Nov-20 15.6 ND ND ND 6.19 50.2 18-Mar-21 12.9 ND ND ND 7.43 46.0 16-Jun-21 13.0 ND ND ND 8.11 50.8 22-Sep-2 l 11.2 ND ND ND 6.63 39.8 8-Dec-21 12.4 ND ND ND 6.71 51.3 23-Mar-22 11.0 ND ND ND 7.30 47.7 16-Jun-22 10.3 ND ND ND 7.10 40.7 14-Sep-22 13.2 ND ND ND 7.22 45.8 8-Dec-22 7.6 ND ND ND 7.54 51.8 29-Mar-23 8.6 ND ND ND 6.27 51.3 21-Jun-23 8.1 ND ND ND 7.13 52.5 14-Sep-23 9.1 ND ND ND 8.83 50.5 0 01 0 ...... 0 0 (ug/L) ...... 01 0 N 0 0 N 01 0 vJ 0 0 vJ 01 0 24-Jul-98 ---------------------------- 19-Apr-01 14-Jan-04 10-Oct-06 I Y I I/ I I I 06-Jul-09 -l i I I I I I 01-Apr-12 i l I/ I I I 11 /I I I I I 27-Dec-14 22-Sep-17 18-Jun-20 15-Mar-23 09-Dec-25 ....__ ___ ..__ __ ___, ___ ___._ ___ __,_ ___ _._ ___ _._ __ __, ~ .,::i. I UI 0 :::r 0 -, 0 o' -, 3 < A) C ff) en Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-6 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (ue/l) 6-Jun-00 0 2-Sep-00 0 28-Nov-00 0 ND 26-Mar-0l 0 0.13 20-Jun-Ol 0 ND 20-Sep-01 4 ND 7-Nov-01 I ND 26-Mar-02 0 ND 21-May-02 0 ND 12-Sep-02 0 ND 24-Nov-02 0 ND 28-Mar-03 0 0.1 23-Jun-03 0 ND 12-Sep-03 0 ND 8-Nov-03 0 ND 29-Mar-04 0 ND 22-Jun-04 0 ND l 7-Sep-04 0 ND 17-Nov-04 0 ND 16-Mar-05 0 0.2 25-May-05 2.5 NA NA NA 0.4 NA 31-Aug-05 10.0 <l 2.8 <l 0.8 NA l-Dec-05 17.0 <l 1.3 <l 0.9 NA 9-Mar-06 31.0 <l <I <l 1.2 31 14-Jun-06 19.0 <l <l <l 1 30 20-Jul-06 11.0 <l <l <I 0.6 37 8-Nov-06 42.8 <l <l <l 1.4 65 28-Feb-07 46.0 <l <l <1 1.5 32 27-Jun-07 11.0 <l <1 <l 0.6 38 15-Aug-07 18.0 <l <1 <1 0.7 36 10-Oct-07 18.0 <l <1 <1 0.8 38 26-Mar-08 52.0 <l <1 <1 1.1 33 25-Jun-08 24.0 <l <1 <1 0.9 35 10-Sep-08 39.0 <l <1 <1 1.14 35 15-Oct-08 37.0 <l <1 <1 1.01 33 11-Mar-09 81.0 <l <1 <I 2.2 35 24-Jun-09 120 <l <l <l 2.7 37 15-Sep-09 280 <l <1 <1 5.0 37 22-Dec-09 250 <l <1 <1 6.1 41 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-6 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u~) (uwJ_) 25-Feb-10 1000 <1 <I <1 1.6 45 10-Jun-10 590 <I <I <1 2.5 33 12-Aug-10 630 <1 <1 <1 3.9 31 13-Oct-lO 420 <I <I <I 4.3 41 n-Feb-11 4"/ NU NU NU U./ 4U 26-May-11 10 NU NU NU 0.3 42 17-Aug-11 16 ND ND ND 0.3 39 7-Dec-11 21 ND ND ND 0.8 36 18-Jan-12 38 ND ND ND 0.7 38 13-Jun-12 4.7 ND ND ND 0.2 40 l 1-Sep-12 6.9 ND ND ND 0.1 21 3-Oct-12 9.0 ND ND ND 0.2 41 13-Feb-13 6.9 ND ND ND 0.154 40.4 13-Jun-13 4.9 ND ND ND 0.155 37.9 5-Sep-13 5.9 ND ND ND 0.157 40.6 13-Nov-13 5.5 ND ND ND 1.52 40.2 29-Jan-14 5.7 ND ND ND 0.184 40.6 22-May-14 10.3 ND ND ND 0.312 37 14-Aug-14 202 ND ND ND 4.2 40 24-Sep-14 260 ND ND ND NIA NIA 29-Oct-14 723 ND ND ND 6.92 41.1 18-Mar-15 1180 ND ND ND 5.25 41.2 I I-Jun-15 1040 ND ND ND 5.87 41.6 10-Sep-15 1040 ND ND ND 6.75 47.0 29-Oct-15 843 ND ND ND 5.61 40.2 22-Mar-16 834 ND ND ND 6.79 42.0 8-Jun-16 486 ND ND ND 3.19 44.1 4-Aug-16 433 ND ND ND 3.85 42.2 26-Oct-16 301 ND ND ND 3.74 46.1 16-Mar-17 288 ND ND ND 3.15 42.1 21-Jun-17 239 ND ND ND 2.42 42.6 3-Aug-17 129 ND ND ND 1.71 42.9 l 1-Oct-17 121 ND ND ND 1.71 37.6 20-Mar-18 159 ND ND ND 1.96 43.1 14-Jun-l 8 74.9 ND ND ND 1.48 40.2 5-Sep-18 53.2 ND ND ND 1.18 44.0 12-Dec-18 37.0 ND ND ND 0.900 20.0 19-Mar-19 23.2 ND ND ND 0.755 41.0 13-Jun-l 9 15.8 ND ND ND 0.484 38.1 Chloroform Carbon Chloromethane Methylene Nitrate Chloride I TW4-6 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwJ_) (u2/l) 11-Sep-19 15.8 ND ND ND 0.412 39.7 14-Dec-19 7.40 ND ND ND 0.244 45.7 17-Mar-20 6.93 ND ND ND 0.222 43 .2 l l-Jun-20 4.86 ND ND ND 0.205 42.4 18-Sep-20 3.63 ND ND ND 0.144 40.5 4-Nov-20 4.61 ND ND ND 0.197 42.9 18-Mar-21 3.78 ND ND ND 0.205 41.6 16-Jun-21 2.90 ND ND ND 0.215 43.8 15-Sep-21 3.71 ND ND ND 0.166 34.1 8-Dec-21 3.92 ND ND ND <0.100 44.8 22-Mar-22 3.10 ND ND ND 0.1 31.5 16-Jun-22 2.10 ND ND ND 0.2 43".l 14-Sep-22 3.90 ND ND ND 0.144 38.7 8-Dec-22 1.50 ND ND ND 0.134 40.7 29-Mar-2J 1.70 ND ND ND <0.100 43.2 20-Jun-23 2.30 ND ND ND 0.134 44.7 14-Sep-23 2.6 ND ND ND 0.170 44.0 u, Q) ::::s ~ E ... .E 0 ... 0 .c: (.) co ~ 0 0 'st ..... ' 0 0 N ..... ~ 0 0 0 ..... I 0 0 00 ,.. (716n) -.:c. 0 0 (!) ,;_... Lf 0 0 'st - ..c 0 0 N gz-:::iao-6 ' ' oz-unr-s~ J .... ' ) ._, -so-1nr-9 -go-i:::io-o~ :t ~ ·• • vo-uer-v~ .. ·• ,I ' ' • .. '. 0 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-7 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2'1) (u2/l) 29-Nov-99 256 15-Mar-00 616 2-Sep-00 698 29-Nov-00 684 1.99 28-Mar-01 747 2.46 20-Jun-0I 1100 2.65 20-Sep-01 1200 3.38 8-Nov-01 1100 2.5 26-Mar-02 1500 3.76 23-May-02 1600 3.89 12-Sep-02 1500 3.18 24-Nov-02 2300 4.6 28-Mar-03 1800 4.8 23-Jun-03 5200 7.6 12-Sep-03 3600 7.6 8-Nov-03 4500 7.1 29-Mar-04 2500 4.63 22-Jun-04 2900 4.83 17-Sep-04 3100 5.59 17-Nov-04 3800 6 16-Mar-05 3100 5.2 25-May-05 2700 NA NA NA 5.4 NA 31-Aug-05 3100 <10 <10 <10 5.2 NA 1-Dec-05 2500 <50 <50 <50 5.3 NA 9-Mar-06 1900 <50 <50 <50 1 48 14-Jun-06 2200 <50 <50 <50 4.5 47 20-Jul-06 2140 <50 <50 <50 4.7 51 8-Nov-06 2160 1.5 <1 <1 4.6 49 28-Feb-07 1800 1.1 <1 <1 5 47 27-Jun-07 2600 1.5 <1 <1 5.1 45 14-Aug-07 2300 1.4 <1 <1 4.7 44 10-Oct-07 1900 1.2 <1 <1 4.7 45 26-Mar-08 2200 1.3 <1 <1 4.2 43 25-Jun-08 1800 1.3 <1 <1 4.8 43 10-Sep-08 1600 1.4 <1 <1 4.16 35 15-Oct-08 1900 <2 <2 <2 4.01 40 11-Mar-09 1800 1.2 <1 <I 3.7 35 24-Jun-09 1400 <1 <1 <1 3.8 37 15-Sep-09 1500 1.0 <1 <1 4.1 37 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-7 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (02'1) (u2').) 29-Dec-09 1300 <1 <1 <1 4.2 37 3-Mar-10 1200 <l <l <l 3.8 36 10-Jun-10 1100 <l <1 <l 3.9 31 18-Aug-10 1500 1.1 <1 <1 3.9 36 13-Oct-l 0 1100 I.I <l <1 4 38 23-Feb-l l 1300 ND ND ND 3.60 45 l-Jun-11 1200 ND ND ND 4.00 35 18-Aug-11 1200 ND ND ND 4.10 37 29-Nov-11 1000 ND ND ND 3.80 37 19-Jan-12 1000 ND ND ND 3.90 37 14-Jun-12 790 ND ND ND 4.00 41 13-Sep-12 870 ND ND ND 3.80 40 4-Oct-12 940 ND ND ND 3.80 41 13-Feb-13 1080 3.51 ND ND 3.90 37 .7 l 8-Jun-13 953 ND ND ND 4.04 39.3 12-Sep-13 1040 ND ND ND 4.17 36.4 14-Nov-13 1050 ND ND ND 4.13 37.2 5-Feb-14 946 5.41 ND ND 4.24 38.2 23-May-14 847 4.78 ND ND 4.19 37.7 27-Aug-14 857 ND 1.5 ND 2.90 39 30-Oct-14 926 ND ND ND 3.68 40.2 18-Mar-15 942 ND ND ND 4.25 40.4 l l-Jun-15 950 ND ND ND 2.62 42.1 10-Sep-15 897 ND ND ND 4.72 46.7 29-Oct-15 847 ND ND ND 3.49 40.6 22-Mar-16 834 ND ND ND 4.43 42.4 8-Jun-16 909 ND ND ND 3.75 44.1 4-Aug-16 1000 ND ND ND 4.21 42.3 27-Oct-16 886 ND ND ND 4.33 45.8 21-Mar-17 986 ND ND ND 3.87 40.5 21-Jun-17 968 ND ND ND 4.15 43.3 4-Aug-17 1070 ND ND ND 4.20 44.7 1 l-Oct-17 884 ND ND ND 4.35 43.7 21-Mar-18 721 ND ND ND 3.96 44.5 14-Jun-18 751 ND ND ND 4.45 41.5 5-Sep-18 781 ND ND ND 4.34 48.5 13-Dec-18 838 ND ND ND 3.98 42.8 20-Mar-19 736 ND ND ND 4.01 41.3 19-Jun-19 862 ND ND ND 4.19 43.0 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-7 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (m!/1) (usvl) 12-Sep-19 801 ND ND ND 3.76 39.7 I 8-Dec-19 546 ND ND ND 3.11 47.2 18-Mar-20 746 ND ND ND 3.75 42.1 12-Jun-20 864 ND ND ND 4.06 44.1 19-Sep-20 971 ND ND ND 3.87 41.5 l l-Nov-20 967 ND ND ND 4.40 42.8 24-Mar-21 875 ND ND ND 4.25 46.2 17-Jun-21 819 ND ND ND 4.80 41.7 23-Sep-21 801 ND ND ND 4.58 42.8 9-Dec-21 868 ND ND ND 3.02 42.9 24-Mar-22 776 0.5 2.1 ND 4.1 41.3 22-Jun-22 447 ND ND ND 3.9 42.5 15-Sep-22 887 ND ND ND 3.77 45.0 9-Dec-22 824 ND ND ND 4.06 44.8 29-Mar-23 619 ND ND ND 3.85 44.9 21-Jun-23 706 ND ND ND 3.89 45.7 27-Sep-23 790 ND ND ND 4.02 45.2 1/) Cl) :I ns > E ... .E 0 ... .2 .c 0 ...... I i I- ~---~------.-----~-------.-----,------r gz-oeo-6 £Z-J8ll\l-9l -oz-unr-B~ 17~-oeo-n z~-Jdy-~ -60-1nr-9 -so-Po-o~ -vo-uer-v~ 1------------------------------1-86-1nr-vl 0 0 0 CD 0 0 0 I.O 0 0 0 "st 0 0 0 C") (716n) 0 0 0 N 0 0 0 ..... 0 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-8 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2').) (02/1) 29-Nov-99 0 15-Mar-00 21.8 2-Sep-00 102 29-Nov-00 107 ND 26-Mar-Ol 116 ND 20-Jun-01 180 ND 20-Sep-0l 180 0.35 7-Nov-01 180 ND 26-Mar-02 190 0.62 22-May-02 210 0.77 12-Sep-02 300 ND 24-Nov-02 450 ND 28-Mar-03 320 0.8 23-Jun-03 420 ND 12-Sep-03 66.0 ND 8-Nov-03 21.0 0.1 29-Mar-04 24.0 0.65 22-Jun-04 110 0.52 l 7-Sep-04 120 ND l 7-Nov-04 120 ND 16-Mar-05 10.0 ND 25-May-05 <l NA NA NA 0.2 NA 31-Aug-05 1.1 <l 1.7 <I <0.1 NA 30-Nov-05 <l <l <l <I <0.1 NA 9-Mar-06 1.3 <l 2.1 <I 0.3 39 14-Jun-06 1.0 <l 1.8 <1 <0.1 37 20-Jul-06 <l <l <l <1 0.1 39 8-Nov-06 <l <l <l <1 <0.1 40 28-Feb-07 2.5 <I <l <l 0.7 39 27-Jun-07 2.5 <l <l <l 0.2 42 15-Aug-07 l.5 <I <1 <l <0.1 42 10-Oct-07 3.5 <1 <1 <1 0.5 43 26-Mar-08 <1 <1 <1 <l 0.1 46 25-Jun-08 <1 <1 <1 <l <0.05 45 10-Sep-08 <1 <1 <1 <l <0.05 39 l 5-Oct-08 <I <1 <I <I <0.05 44 4-Mar-09 <I <1 <I <I <0.1 42 24-Jun-09 <I <1 <I <1 <0.1 44 15-Sep-09 <I <1 <I <I <I 44 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-8 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (m!/1) (02/1) I 7-Dec-09 <l <l <1 <1 <0.1 51 24-Feb-10 <1 <I <I <I <0.1 57 9-Jun-10 <1 <1 <I <1 <0.1 42 I I-Aug-IO <I <I <1 <l <0.1 45 5-Oct-10 <I <I <1 <I <0.1 46 16-Feb-l 1 ND ND ND ND ND 52 25-May-l I ND ND ND ND 0.1 45 16-Aug-l I ND ND ND ND 0.1 46 7-Dec-11 ND ND ND ND 0.2 45 18-Jan-12 ND ND ND ND 0.3 45 31-May-12 ND ND ND ND 0.2 44 29-Aug-12 ND ND ND ND 0.1 48 3-Oct-12 ND ND ND ND ND 47 7-Feb-13 ND ND ND ND 0.411 46.6 30-May-13 ND ND ND ND ND 45.5 5-Sep-13 ND ND ND ND ND 47.5 7-Nov-13 ND ND ND ND ND 46.1 23-Jan-14 63.8 ND ND ND 0.166 48.5 6-Feb-14 100 ND ND ND 0.165 46.6 22-May-14 122 ND ND ND 0.538 53 27-Aug-14 107 ND ND ND 0.6 47 29-Oct-14 191 ND ND ND 0.914 46.7 12-Mar-15 961 ND ND ND 2.34 49.6 11-Jun-15 981 ND ND ND 1.88 53 I0-Sep-15 747 ND ND ND 1.96 59.6 29-Oct-15 770 ND ND ND 2.20 52.0 I 7-Mar-16 634 ND ND ND 2.48 54.2 8-Jun-16 595 ND ND ND 2.14 58.7 4-Aug-16 522 ND ND ND 2.10 56.9 27-Oct-16 472 ND ND ND 2.16 60.1 21-Mar-17 359 ND ND ND 2.06 57.4 21-Jun-17 256 ND ND ND 1.97 58.8 4-Aug-17 223 ND ND ND 1.64 61.2 11-Oct-17 214 ND ND ND 1.97 52.2 21-Mar-18 220 ND ND ND 1.36 60.8 14-Jun-18 155 ND ND ND 1.31 53.8 5-Sep-18 137 ND ND ND 1.40 63.2 13-Dec-18 93.8 ND ND ND 0.123 65.8 19-Mar-19 103 ND ND ND 1.23 54.3 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-8 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/1) (u2/l) 19-Jun-19 96.0 ND ND ND 1.10 56.5 12-Sep-19 75.4 ND ND ND 0.999 52.0 18-Dec-19 84.4 ND ND ND 1.21 60.1 18-Mar-20 55.0 ND ND ND 1.04 53.8 12-Jun-20 53.8 ND ND ND 1.06 56.9 18-Sep-20 39.5 ND ND ND 0.894 52.6 l l-Nov-20 51.3 ND ND ND 1.27 54.7 18-Mar-21 26.9 ND ND ND 1.00 52.8 16-Jun-21 22.3 ND ND ND 1.12 51.5 22-Sep-21 17.0 ND ND ND 0.665 40.8 8-Dec-21 17 .2 ND ND ND 0.738 54.9 23-Mar-22 l 5.1 ND ND ND 0.8 50.8 16-Jun-22 10.9 ND ND ND 0.64 52.8 14-Sep-22 15.3 ND ND ND 0.718 52.5 15-Sep-22 16.3 ND ND ND 0.718 52.5 8-Dec-22 4.4 ND ND ND 0.654 50.8 29-Mar-23 9.1 ND ND ND 0.658 53.4 21-Jun-23 8.3 ND ND ND 0.597 55.3 14-Sep-23 7.4 ND ND ND 0.720 53.5 II) Cl) j ca > E ... .s 0 ... .2 .c (.) 00 I 'l:t' ~ ,---------.-----~------,-------.------,-----------.-gz-oaa-6 oz-unr-s~ L~-das-zz v~-oaa-a l~ -Jd'v'-~ 60-1nr-9 90-PQ-Q~ vo-uer-v~ l------+------1-----+-------+-----------+, 86-1nr-vz 0 0 N ..... 0 0 0 ..... 0 0 00 0 0 co (716n) 0 0 '<t 0 0 N 0 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-9 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (~g/1) (u2'1) 20-Dec-99 4.2 15-Mar-00 1.9 2-Sep-00 14.2 29-Nov-00 39.4 ND 27-Mar-01 43.6 ND 20-Jun-01 59.0 0.15 20-Sep-01 19.0 0.4 7-Nov-01 49.0 0.1 26-Mar-02 41.0 0.5 22-May-02 38.0 0.65 12-Sep-02 49.0 0.2 24-Nov-02 51.0 0.6 28-Mar-03 34.0 0.6 23-Jun-03 33.0 0.8 12-Sep-03 32.0 1.1 8-Nov-03 46.0 1.1 29-Mar-04 48.0 0.82 22-Jun-04 48.0 0.75 l 7-Sep-04 39.0 0.81 l 7-Nov-04 26.0 1.2 16-Mar-05 3.8 1.3 25-May-05 1.2 NA NA NA 1.3 NA 31-Aug-05 <1 <l 2.9 <1 1.3 NA l-Dec-05 <l <l <l <1 1.3 NA 9-Mar-06 <l <I 2.6 <1 1.5 38 14-Jun-06 <l <I 2.7 <l 1.5 39 20-Jul-06 <1 <I <l <l 0.9 41 8-Nov-06 <1 <I <l <l 0.7 44 28-Feb-07 <l <l <l <1 0.6 44 27-Jun-07 21 <l <l <1 1.3 42 15-Aug-07 9.5 <1 <l <1 1.8 38 1 0-Oct-07 8.7 <I <l <I 2 40 26-Mar-08 1.3 <l <l <I 2.1 35 25-Jun-08 1.0 <l <l <I 2.3 35 10-Sep-08 <I <l <l <l 2.79 28 l 5-Oct-08 <l <I <l <l 1.99 58 4-Mar-09 <l <l <l <l 2.5 30 24-Jun-09 <I <l <l <l 2.3 30 15-Sep-09 <l <l <I <l 2.5 30 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-9 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwI) (uwI) l 7-Dec-09 <1 <1 <l <l 1.7 37 23-Feb-10 <l <l <l <l 1.7 47 9-Jun-10 <l <l <l <l 1.5 33 l l-Aug-10 <l <l <l <l 1.2 40 6-Oct-10 <I <l <l <I 1.8 34 17-Feb-ll ND ND ND ND 1.3 41 25-May-l l ND ND ND ND 3.4 38 16-Aug-l l ND ND ND ND 4 21 7-Dec-11 ND ND ND ND 2.3 38 18-Jan-12 ND ND ND ND 2.3 28 31-May-12 ND ND ND ND 4 23 30-Aug-12 ND ND ND ND 3.9 22 3-Oct-12 ND ND ND ND 3.8 21 7-Feb-13 ND ND ND ND 4.12 20.6 30-May-13 ND ND ND ND 4.49 21.4 5-Sep-13 ND ND ND ND 4.03 22.7 7-Nov-13 ND ND ND ND 4.87 23.6 29-Jan-14 ND ND ND ND 4.36 22 21-May-14 6.9 ND ND ND 3.44 24 14-Aug-14 46.9 ND ND ND 2.7 27 29-Oct-14 101 ND ND ND 4.27 25 12-Mar-15 53.5 ND ND ND 3.28 29.5 l l-Jun-15 35.1 ND ND ND 1.83 35.3 3-Sep-15 48.2 ND ND ND 1.44 39.5 28-Oct-l 5 68.4 ND ND ND 2.89 29.2 l 7-Mar-16 74.3 ND ND ND 2.51 33.6 8-Jun-16 76.2 ND ND ND 2.16 35.l 3-Aug-16 76.8 ND ND ND 2.11 33.6 26-Oct-16 76 ND ND ND 2.24 37.4 16-Mar-l 7 113 ND ND ND 2.18 34.5 21-Jun-17 113 ND ND ND 1.92 35.9 3-Aug-17 118 ND ND ND 1.90 37.0 l l-Oct-17 132 ND ND ND 2.18 32.3 21-Mar-18 159 ND ND ND 1.85 38.3 14-Jun-18 134 ND ND ND 1.85 35.7 5-Sep-18 94.2 ND ND ND 1.04 43.4 13-Dec-18 109 ND ND ND 1.2J 36.3 l 9-Mar-19 86.4 ND ND ND 1.09 36.9 19-Jun-19 68.l ND ND ND 0.785 38.3 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-9 {ug/1) Tetrachloride {ug/1) Chloride {mg/I) (mg/I) (u211) fue/1) l l-Sep-19 66.0 ND ND ND 0.904 35.2 l 8-Dec-19 54.8 ND ND ND 0.744 40.1 18-Mar-20 48.9 ND ND ND 0.855 37.7 12-Jun-20 55.1 ND ND ND 0.990 39.5 l 8-Sep-20 45.0 ND ND ND 0.867 36.7 l l-Nov-20 47.1 ND ND ND 1.11 37.2 18-Mar-21 39.0 ND ND ND 1.06 40.7 16-Jun-21 102.0 ND ND ND 1.00 37.4 22-Sep-21 30.0 ND ND ND 0.700 30.8 8-Dec-21 25.4 ND ND ND 0.798 36.9 23-Mar-22 16.5 ND ND ND 0.8 34.6 22-Jun-22 9.8 ND ND ND 0.62 41.7 14-Sep-22 10.8 ND ND ND 0.673 32.4 15-Sep-22 11.8 ND ND ND 0.673 32.4 8-Dec-22 6.7 ND ND ND 0.676 33.2 29-Mar-23 6.2 ND ND ND 0.765 37.1 21-Jun-23 5.0 ND ND ND 0.742 38.0 14-Sep-23 6.2 ND ND ND 0.690 36.2 en Cl) ::s ns > E ... .s 0 ... .2 .c 0 en I "'1:1' ~ oz-unr-s ~ -H-das-zz v~-oaa-n -z~-Jd'q'-~ so-1nr-9 so-Po-o~ -vo-uer-v~ 1--------1--------1--------!------!-----!-----!----4-----!------1-ss-1nr-vz 0 co ..- 0 (!) ..- 0 ',;f" ..- 0 N ..- 0 0 .... (716n) 0 co 0 (!) 0 ',;f" 0 N 0 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-10 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue;/1) (ue;/1) 21-Jan-02 14 26-Mar-02 16 0.14 21-May-02 17 0.11 12-Sep-02 6 ND 24-Nov-02 14 ND 28-Mar-03 29 0.2 23-Jun-03 110 0.4 12-Sep-03 74 0.4 8-Nov-03 75 0.3 29-Mar-04 22 0.1 22-Jun-04 32 ND 17-Sep-04 63 0.46 17-Nov-04 120 0.4 16-Mar-05 140 1.6 25-May-05 62.4 NA NA NA 0.8 NA 3 l-Aug-05 110 <2.5 6.2 <2.5 1.1 NA l-Dec-05 300 <2.5 <2.5 <2.5 3.3 NA 9-Mar-06 190 <5 <50 <50 2.4 50 14-Jun-06 300 <5 <50 <50 3.5 54 20-Jul-06 504 <5 <50 <50 6.8 61 8-Nov-06 452 <l 1.6 1 5.7 58 28-Feb-07 500 <l <1 1 7.6 62 27-Jun-07 350 <l <1 1 5.1 54 15-Aug-07 660 <1 <l 1 7.3 59 1 0-Oct-07 470 <l <l 1 6.7 59 26-Mar-08 620 <l <l 1 7.3 55 25-Jun-08 720 <l <l 1 9.91 58 10-Sep-08 680 <1 <1 1 9.23 51 15-Oct-08 1200 <2 <2 2 10.5 61 11-Mar-09 1100 <1 <l 1 11.6 64 24-Jun-09 1200 <1 <l 1 9.8 62 15-Sep-09 910 <l <] 1 8.1 51 22-Dec-09 300 <1 <1 <I 3.5 51 3-Mar-10 460 <1 <] <l 5 49 1O-Jun-10 220 <l <1 <] 1.6 42 12-Aug-10 100 <l <1 <] 0.8 38 l 3-Oct-10 1100 <] <] <] 11 52 23-Feb-11 620 ND ND ND 9 62 l-Jun-11 280 ND ND ND 3.3 42 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-10 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (ue/1) 17-Aug-11 180 ND ND ND 1.9 41 16-Nov-1 l 110 ND ND ND 1.1 45 19-Jan-l 2 76 ND ND ND 0.9 40 13-Jun-12 79 ND ND ND 0.8 46 12-Sep-12 130 ND ND ND 1.0 44 3-Oct-12 140 ND ND ND 1.6 45 13-Feb-13 154 ND ND ND 1.2 49.1 l 3-Jun-13 486 ND ND ND 5.6 51.5 12-Sep-13 1160 ND ND ND 13.0 67.9 14-Nov-13 1380 ND ND ND 16.0 70.9 5-Feb-14 1260 5.16 ND ND 16.8 73 23-May-14 1110 ND ND ND 13.9 77.3 27-Aug-14 1060 ND l.5 ND 9.8 74 30-Oct-14 1220 ND ND ND 13.2 75.2 18-Mar-15 1210 ND ND ND 15.0 78.6 11-Jun-15 1240 ND ND ND 11.4 75 1 0-Sep-15 1280 ND ND ND 14.0 89.5 29-Oct-l 5 1350 ND ND ND 13.5 79.9 22-Mar-16 1430 ND ND ND 17.3 84.1 8-Jun-l 6 1510 ND ND ND 14.9 89.5 4-Aug-16 1500 ND ND ND 14.9 85.3 27-Oct-16 1290 ND ND ND 14.8 84.4 21-Mar-17 1260 ND ND ND 13.0 74.6 21-Jun-l 7 1140 ND ND ND 13.0 73.1 4-Aug-17 1320 ND ND ND 13.4 77.0 l 1-Oct-17 I 150 ND ND ND 12.9 70.0 21-Mar-18 1240 ND ND ND 11.1 72.7 14-Jun-l 8 914 ND ND ND 11.2 64.5 5-Sep-18 91 l ND ND ND 10.1 73.5 l 3-Dec-18 1070 ND ND ND 10.6 63 .5 20-Mar-19 869 ND ND ND 9.34 59.3 19-Jun-l 9 799 ND ND ND 8.86 58.7 12-Sep-19 734 ND ND ND 7.79 55.8 l 8-Dec-19 768 ND ND ND 6.89 62.0 18-Mar-20 798 ND ND ND 7.83 53.5 12-Jun-20 928 ND ND ND 8.13 60.1 19-Sep-20 854 ND ND ND 7.34 53.9 l l-Nov-20 903 ND ND ND 8.69 58 .6 24-Mar-21 718 ND ND ND 7.20 58.1 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-10 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue:/1) (ue:/1) 17-Jun-21 609 ND ND ND 7.75 48.7 23-Sep-2 I 545 ND ND ND 6.35 50.6 9-Dec-21 675 ND ND ND 5.47 51.9 24-Mar-22 471 ND I ND 5.1 49.0 22-Jun-22 342 ND ND ND 4.6 46.0 15-Sep-22 563 ND ND ND 5.57 52.0 I 6-Sep-22 564 ND ND ND 5.57 52.0 9-Dec-22 499 ND ND ND 4.76 43.4 29-Mar-23 361 ND ND ND 4.20 48.6 2 l-Jun-23 322 ND ND ND 3.76 46.9 27-Sep-23 286 ND ND ND 3.18 44.8 ,,, Q) :l cu > E ... .E 0 ... .2 .c 0 0 or-I ~ 0 0 (0 .- 0 0 '<t .- 0 0 N .- 0 0 0 .- 0 0 co 0 0 (0 (716n) 0 0 '<t 0 0 N 0 oz-unr-B ~ L~-das-zz v~-oaa-a U-Jd'v'-~ 60-1nr-9 90-PO-0~ vo-uer-v~ Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-11 Tetrachloride (ug/1) (_µg/1) (ug/1) Chloride (ug/1) (mg/I) (mg/I) 21-Jan-02 4700 26-Mar-02 4900 9.6 22-May-02 5200 9.07 12-Sep-02 6200 8.84 24-Nov-02 5800 9.7 28-Mar-03 5100 9.7 23-Jun-03 5700 9.4 12-Sep-03 4600 9.9 8-Nov-03 5200 9.3 29-Mar-04 5300 9.07 22-Jun-04 5700 8.74 17-Sep-04 4800 8.75 I7-Nov-04 5800 9.7 16-Mar-05 4400 8.7 25-May-05 3590 NA NA NA 10.3 NA 31-Aug-05 4400 <10 <10 <10 9.4 NA 1-Dec-05 4400 <100 <100 <100 9.4 NA 9-Mar-06 4400 <50 <50 <50 9.2 56 I4-Jun-06 4300 <50 <50 <50 10 56 20-Jul-06 4080 <50 <50 <50 10 55 8-Nov-06 3660 1.7 2.7 1.3 10 55 28-Feb-07 3500 1.3 <l 1.6 10.1 54 27-Jun-07 3800 1.6 <l 1.1 10.6 53 I5-Aug-07 4500 1.7 <l 1.1 10.2 53 10-Oct-07 4400 1.6 <l 1.2 9.8 53 26-Mar-08 340 <1 <l <l 7.7 63 25-Jun-08 640 <1 <l <l 7.28 46 10-Sep-08 900 <1 <l <l 7.93 42 l 5-Oct-08 1000 <2 <2 <2 9.46 47 ll-Mar-09 1100 <l <l <l 7.3 49 24-Jun-09 980 <1 <1 <I 6.8 44 15-Sep-09 1000 <1 <1 <I 7 49 29-Dec-09 860 <1 <1 <I 6.6 46 3-Mar-10 820 <l <1 <l 6.8 42 IO-Jun-IO 820 <1 <1 <I 6.9 40 12-Aug-10 800 <l <1 <l 6.7 43 13-Oct-10 720 <l <1 <I 6.4 49 23-Feb-I I 1000 ND ND ND 6.5 46 I-Jun-I I 930 ND ND ND 7.3 49 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-11 Tetrachloride (ug/1) {u2/l) (ug/1) Chloride (ug/1) (mg/1) (mg/1) 17-Aug-ll 820 ND ND ND 7.1 48 16-Nov-l I 1500 ND ND ND 7.1 46 24-Jan-12 610 ND ND ND 6.8 43 13-Jun-12 660 ND ND ND 6.7 52 13-Sep-12 740 ND ND ND 3 49 4-Oct-12 730 ND ND ND 7 50 13-Feb-13 867 3.23 ND ND 6.83 47.3 18-Jun-13 788 ND ND ND 7.42 49.7 12-Sep-13 865 ND ND ND 7.8 46.6 13-Nov-13 874 ND ND ND 8.01 46.7 5-Feb-14 785 5.19 ND ND 8.47 48.5 23-May-14 751 ND ND ND 6.92 51.6 27-Aug-14 719 ND 1.2 ND 5.4 48 29-Oct-14 803 ND ND ND 7.33 56.4 9-Mar-15 2450 1.24 ND ND 8.72 49.8 8-Jun-15 2710 ND ND ND 8.48 62.2 31-Aug-15 1120 ND 1.62 ND 9.61 73.1 19-Oct-15 2730 ND ND ND 7.5 55.3 9-Mar-16 2660 1.2 ND ND 7.13 55.5 23-May-16 3340 2.19 ND ND 7.81 56.4 25-Jul-16 3200 ND ND ND 8.83 55.3 12-Oct-16 3180 1.58 ND ND 8.92 57.2 8-Mar-17 3310 1. 71 ND ND 8.12 49.8 13-Jun-17 3370 1.83 ND ND 7.92 51.4 26-Jul-l 7 3290 1.81 ND ND 7.78 51.0 I I-Oct-17 2880 1.48 ND ND 7.79 49.7 12-Mar-18 3090 1.82 ND ND 7.89 54.0 8-Jun-18 2800 1.34 ND ND 7.51 52.6 22-Aug-18 3050 1.47 ND ND 7.15 53.3 28-Nov-18 2930 1.33 ND ND 6.85 45.4 8-Mar-19 2820 1.48 ND ND 7.50 46.8 5-Jun-19 2970 1.52 1.40 ND 8.30 45.3 4-Sep-19 2790 ND ND ND 7.15 48.8 10-Dec-19 3250 ND ND ND 7.14 49.0 19-Feb-20 2990 ND ND ND 7.07 51.9 27-May-20 2810 1.37 ND ND 7.56 48.6 4-Sep-20 3070 1.37 ND ND 7.59 46.3 28-Oct-20 2670 ND 3.86 ND 7.19 43.3 23-Feb-21 2750 ND 3.86 ND 7.21 49.5 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-11 Tetrachloride (ug/1) (u2/l) (ug/1) Chloride (ug/1) (mg/I) (mg/I) 9-Jun-21 3320 ND ND ND 8.17 37.7 24-Aug-21 2600 ND ND ND 5.78 40.2 l-Dec-21 2850 ND ND ND 7.44 48.4 9-Mar-22 2780 ND ND ND 7.4 41.5 8-Jun-22 2550 1.0 2.7 ND 5.9 44.5 30-Aug-22 3020 ND ND ND 6.90 42.4 31-Aug-22 3021 ND ND ND 6.90 42.4 30-Nov-22 2900 ND ND ND 7.05 36.6 7-Mar-23 2430 ND ND ND 5.68 39.2 13-Jun-23 2510 ND 2.9 ND 6.70 40.9 9-Aug-23 2630 ND ND ND 6.05 45.2 0 .... 0 0 0 N 0 0 0 (ug/L) UJ 0 0 0 ~ 0 0 0 V, 0 0 0 CTI 0 0 0 -..J 0 0 0 19-Apr-01 ;------1----+---+-----l~---+-----l------4 14-Jan-04 10-Oct-06 6-Jul-09 , .... 1-Apr-12 ~ t I -I / I I I I I 27-Dec-14 -l I I I I I I 22-Sep-17 _J I I I ~ I I I I 18-Jun-20 15-Mar-23 9-Dec-25 -I ~ ,t:::iii I ..... ..... n :::r -0 .., 0 ...... 0 .., 3 :;. -C tD "' Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-12 (og/1) Tetrachloride (og/1) Chloride (mg/I) (mg/I) (owl) (owl) 12-Sep-02 2 2.54 24-Nov-02 0 2.2 28-Mar-03 0 1.9 23-Jun-03 0 1.8 12-Sep-03 0 1.8 9-Nov-03 0 1.6 29-Mar-04 0 1.58 22-Jun-04 0 1.4 17-Sep-04 0 1.24 17-Nov-04 0 1.5 16-Mar-05 0 1.4 25-May-05 <I NA NA NA 1.6 NA 31-Aug-05 <I <1 5.8 <l 1.5 NA l-Dec-05 <l <1 1.9 <2 1.4 NA 9-Mar-06 <l <1 2.6 <l 1.3 19 14-Jun-06 <l <1 1.4 <l l.4 16 20-Jul-06 <l <1 <1 <l l.4 16 8-Nov-06 <I <l <1 <1 l.4 16 28-Feb-07 <I <l <I <1 1.5 16 27-Jun-07 <I <l <1 <l 1,5 18 15-Aug-07 <1 <I <I <1 1.4 29 I 0-Oct-07 <I <l <l <I 1.4 16 26-Mar-08 <I <l <l <l 1.6 16 25-Jun-08 <I <1 <l <1 2.69 19 I0-Sep-08 <l <l <l <1 2.65 18 l 5-Oct-08 <I <l <l <l 2.47 22 4-Mar-09 <I <I <l <1 2.4 23 24-Jun-09 <I <I <I <1 3.8 22 15-Sep-09 <I <I <l <1 5.1 22 16-Dec-09 <l <1 <l <1 3.6 23 23-Feb-10 <I <1 <l <1 4 22 8-Jun-10 <l <1 <l <1 11 29 10-Aug-10 <l <1 <l <l 9 35 5-Oct-10 <l <I <l <1 8 31 15-Feb-l l ND ND ND ND 6.5 31 25-May-ll ND ND ND ND 7 32 16-Aug-l l ND ND ND ND 6.8 31 l 5-Nov-11 ND ND ND ND 8 30 l 7-Jan-12 ND ND ND ND 7.7 28 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-12 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (ue/1) 3 l-May-12 ND ND ND ND 10 34 29-Aug-12 ND ND ND ND 13 39 3-Oct-12 ND ND ND ND 13 39 7-Feb-13 ND ND ND ND 12.6 36.7 29-May-13 ND ND ND ND 14.2 38.6 29-Aug-13 ND ND ND ND 17.4 41.7 6-Nov-13 ND ND ND ND 16.4 41.4 22-Jan-14 ND ND ND ND 18.4 41.6 21-May-14 ND ND ND ND 17 40.2 27-Aug-14 ND ND ND ND 13 47 23-Oct-14 ND ND ND ND 16.1 50.2 l l-Mar-15 ND ND ND ND 19.2 50.6 10-Jun-15 ND ND ND ND 18.8 56 2-Sep-15 ND ND ND ND 16.4 60.2 21-Oct-15 ND ND ND ND 18 51.0 15-Mar-16 ND ND ND ND 34.8 56.2 25-May-16 ND ND ND ND 30.7 66.4 27-Jul-16 ND ND ND ND 37.7 67.5 l 9-Oct-16 ND ND ND ND 25.8 72.6 14-Mar-l 7 ND ND ND ND 25.9 62.6 14-Jun-l 7 1.25 ND ND ND 29.9 67.2 2-Aug-17 1.20 ND ND ND 25.1 65.3 10-Oct-l 7 ND ND ND ND 26.9 56.2 14-Mar-18 ND ND ND ND 19.8 59.5 12-Jun-18 ND ND ND ND 18.4 53.6 29-Aug-18 ND ND ND ND 13.6 59.9 30-Nov-18 ND ND ND ND 10.4 56.1 16-Mar-19 ND ND ND ND 10.1 50.8 13-Jun-19 ND ND ND ND 8.31 55.3 l l-Sep-19 ND ND ND ND 8.88 52.6 14-Dec-l 9 ND ND ND ND 8.04 58.0 17-Mar-20 ND ND ND ND 6.39 53.0 10-Jun-20 ND ND ND ND 4.95 51.7 17-Sep-20 ND ND ND ND 2.34 50.3 4-Nov-20 ND ND ND ND 5.91 48.0 l 7-Mar-21 ND ND ND ND 3.10 52.0 15-Jun-21 ND ND ND ND 2.39 51.8 15-Sep-21 ND ND ND ND 1.95 36.1 7-Dec-21 ND ND ND ND 1.46 49.8 CN,o;roform Q:rbon 'Cb loro:ru. !l'l'alb •~1a:w.i.~e . i1;rate .Cblorid~ TW4-~ (ug/1 'Tetrachloride 'og(l) ~Q~1iide mgll) mg/I) (uiUll 1a:~1t1:i1 15-Mar-22 ND ND ND ND 8.4 25.8 15-Jun-22 ND ND ND ND 16.0 53.3 13-Sep-22 ND ND ND ND 13.80 57.9 7-Dec-22 ND ND ND ND 4.68 49.2 22-Mar-23 ND ND ND ND 2.84 35.9 15-Jun-23 ND ND ND ND 4.72 43.6 13-Sep-23 ND ND ND ND 4.02 50.3 19-Apr-01 14-Jan-04 1 0-Oct-06 6-Jul-09 1-Apr-12 27-Dec-14 22-Sep-17 18-Jun-20 15-Mar-23 0 0 ◄ ► ◄ : ◄► a ◄► ◄ ► ◄► ◄► a 1 ► 0 ► ◄► ◄ ► ◄ ► :. ◄► 0 ◄► ◄ ◄ ◄► '► :. a ► ► ► ◄► ◄ ► ◄► ◄► ◄► ► ◄► ◄ s ► ► ◄► ► ◄► ◄► ◄► ► ► ◄ ► ► 0 01 (ug/L) ...... 0 ~ ...... 01 ' I N 0 i I ..ll,, N 0 :::r 0 0 o' "'I 3 ~ C (D UI Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-13 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) I (ue/Jl (ue/1) 12-Sep-02 ND ND 24-Nov-02 ND ND 28-Mar-03 ND 0.20 23-Jun-03 ND 0.20 12-Sep-03 ND ND 9-Nov-03 ND 0.90 29-Mar-04 ND 0.12 22-Jun-04 ND 0.17 l 7-Sep-04 ND 4.43 l 7-Nov-04 ND 4.70 16-Mar-05 ND 4.20 25-May-05 <I NA NA NA 4.30 NA 3 l-Aug-05 <l <l 3. I <l 4.60 NA l-Dec-05 <I <I <I <I 4.30 NA 9-Mar-06 <l <l 1.7 <l 4.20 67.0 14-Jun-06 <1 <1 1.4 <l 4.90 66.0 20-Jul-06 <] <l <I <1 4.30 65.0 8-Nov-06 <1 <I <1 <I 0.80 33.0 28-Feb-07 <1 <1 <1 <I 4.00 59.0 27-Jun-07 <] <1 <1 <1 4.60 59.0 15-Aug-07 <1 <I <l <1 4.40 58.0 10-Oct-07 <l <l <l <l 4.10 58.0 26-Mar-08 <1 <l <I <l 3.80 54.0 25-Jun-08 <1 <l <1 <l 4.24 58.0 10-Sep-08 <1 <1 <1 <I 4.26 50.0 15-Oct-08 <1 <1 <1 <1 4.63 58.0 4-Mar-09 <] <l <l <l 3.70 58.0 24-Jun-09 <1 <l <1 <l 1.20" 57.0 15-Sep-09 <1 <1 <1 <l 4.70 63.0 16-Dec-09 <1 <1 <1 <1 4.10 60.0 24-Feb-10 <l <l <l <1 4.30 53.0 8-Jun-10 <I <1 <] <I 5.20 52.0 10-Aug-10 <1 <l <l <l 5.60 55.0 5-Oct-10 <1 <l <1 <1 5.80 55.0 15-Feb-11 ND ND ND ND 5.50 60.0 25-May-l l ND ND ND ND 5.40 56.0 16-Aug-l 1 ND ND ND ND 5.20 60.0 15-Nov-11 ND ND ND ND 5.90 54.0 l 7-Jan-12 ND ND ND ND 5.50 55.0 3 l-May-12 ND ND ND ND 6.00 59.0 29-Aug-12 ND ND ND ND 6.20 60.0 3-Oct-12 ND ND ND ND 5.90 60.0 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-13 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u!!II) (µ!!II) 7-Feb-13 ND ND ND ND 6.31 59.3 29-May-13 ND ND ND ND 6.84 56 29-Aug-13 ND ND ND ND 7.16 63 .5 6-Nov-13 ND ND ND ND 6.48 58.5 22-Jan-14 ND ND ND ND 7.09 63.1 21-May-14 ND ND ND ND 5.99 56.I 13-Aug-14 ND ND ND ND 4.80 62 23-Oct-14 ND ND ND ND 6.28 66.1 11-Mar-15 ND ND ND ND 7.09 66.4 1 0-Jun-15 ND ND ND ND 6.32 70.3 2-Sep-15 ND ND ND ND 5.70 76.5 21-Oct-15 ND ND ND ND 5.78 65.5 16-Mar-16 ND ND ND ND 7.97 69.4 25-May-16 ND ND ND ND 5.87 71.8 28-Jul-l 6 ND ND ND ND 6.14 69.3 l 9-Oct-16 ND ND ND ND 6.20 70.9 l 5-Mar-17 ND ND ND ND 6.05 66.0 15-Jun-l 7 ND ND ND ND 6.49 70.4 2-Aug-17 ND ND ND ND 6.15 70.5 l 0-Oct-17 ND ND ND ND 6.17 60.9 14-Mar-18 ND ND ND ND 5.76 71.0 12-Jun-18 ND ND ND ND 6.24 65.0 29-Aug-18 ND ND ND ND 5. 13 73.7 30-Nov-18 ND ND ND ND 5.29 64.5 16-Mar-19 ND ND ND ND 5.74 61.6 13-Jun-19 ND ND ND ND 6.56 65.4 13-Sep-19 ND ND ND ND 5.19 65.3 14-Dec-l 9 ND ND ND ND 5.17 68.7 17-Mar-20 ND ND ND ND 5.50 63.9 11-Jun-20 ND ND ND ND 5.96 62.7 17-Sep-20 ND ND ND ND 5.25 60.2 4-Nov-20 ND ND ND ND 4.92 60.6 17-Mar-21 ND ND ND ND 5.57 67.3 15-Jun-21 ND ND ND ND 2.88 57.7 l 5-Sep-21 ND ND ND ND 4.80 54.2 7-Dec-21 ND ND ND ND 5.06 61.0 16-Mar-22 ND ND ND ND 4.8 59.2 l 5-Jun-22 ND ND ND ND 4.5 62.6 13-Sep-22 ND ND ND ND 4.37 62.4 elifproform ' arJ)on Cblorcomethane J\1:ethY,lene Nitrate 0-d@tide TW'4-U ':fe;tra~oride .eblo'11ii! Ii {ug/1) (ue/1.), (llg/1) (uf!/1) (mg/I) {Jtt,Dl~ 7-Dec-22 ND ND ND ND 4.87 56.9 23-Mar-23 ND ND ND ND 4.47 57.6 15-Jun-23 ND ND ND ND 4.60 63.2 13-Sep-23 ND ND ND ND 3.93 60.9 u, Q) ::::, ~ E ... .E e .2 .c (.) C") T"" ~ ..-O') ci 00 ci ' r-- ci (0 ci C"") ~ I V s I- C ·- "'C Q) -+-I (.) Q) -+-I Q) "'C C Q) Q) ..c -+-I 0 C en m ..c E I,,_ 0 '+-0 I,,_ 0 -..c (.) LO ci (716n) I ('I') ci N ci ' ..- ci • , . .. • • • .. • .. • • oz:-das • • • .. • • .. B~-das • • ~ g~-das t • • •• ' • • • • • • • o~-das • • • • Bo-das • • • • go-das : • • .. ~ vo-das • • • .. z:o-das 0 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-14 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue:/1) (ue:/1) 8-Nov-06 <1 <I <I <I 2.40 37.0 28-Feb-07 <1 <1 <l <l 2.30 38.0 27-Jun-07 <l <l <I <l 1.40 38.0 l 5-Aug-07 <1 <] <] <1 1.10 36.0 10-Oct-07 <I <I <l <1 0.80 36.0 26-Mar-08 <1 <l <l <1 0.04 57.0 25-Jun-08 <I <l <l <1 1.56 35.0 10-Sep-08 <l <l <l <I 1.34 34.0 l 5-Oct-08 <l <l <l <1 0.76 40.0 4-Mar-09 <1 <I <l <l 1.60 35.0 24-Jun-09 <l <l <1 <1 1.40 36.0 15-Sep-09 <l <1 <l <1 1.50 38 .0 16-Dec-09 <1 <l <l <1 1.40 34.0 3-Mar-10 <l <l <l <I 2.50 33.0 8-Jun-10 <l <l <I <1 2.90 49.0 IO-Aug-IO <1 <I <1 <1 2.80 35.0 6-Oct-I 0 <1 <1 <l <l 2.90 29.0 15-Feb-11 ND ND ND ND 1.80 25.0 16-Aug-11 ND ND ND ND 2.60 33.0 15-Nov-1 l ND ND ND ND 1.70 15.0 17-Jan-12 ND ND ND ND 1.90 20.0 3 l-May-12 ND ND ND ND 3.30 35.0 29-Aug-12 ND ND ND ND 3.90 37.0 3-Oct-12 ND ND ND ND 4.20 37.0 7-Feb-13 ND ND ND ND 4.63 35.2 30-May-13 ND ND ND ND 4.37 38.6 29-Aug-13 ND ND ND ND 4.51 37.6 6-Nov-13 ND ND ND ND 4.81 36.5 22-Jan-14 ND ND ND ND 5.92 35.5 21-May-14 ND ND ND ND 4.87 32.5 13-Aug-14 ND ND ND ND 4.10 38.0 23-Oct-14 1.68 ND ND ND 5.22 38.9 12-Mar-15 1. 71 ND ND ND 5.22 40.1 10-Jun-15 1.82 ND ND ND 3.55 41.8 3-Sep-15 ND ND ND ND 2.77 42.4 2 l-Oct-15 1.46 ND ND ND 2.45 40.6 16-Mar-16 4.49 ND ND 2.18 2.94 42.4 26-May-16 6.15 ND ND 3.18 2.45 43.6 28-Jul-16 5.00 ND ND 1.80 2.88 42.4 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-14 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (ue/1) 20-Oct-16 7.02 ND ND 1.59 2.86 45.6 15-Mar-l 7 6.45 ND ND ND 4.36 45.4 15-Jun-17 6.85 ND ND ND 5.12 46.9 2-Aug-17 6.14 ND ND ND 4.84 46.4 1 0-Oct-17 6.13 ND ND ND 4.73 42.5 l 5-Mar-18 5.80 ND ND ND 5.67 51.5 13-Jun-l 8 5.12 ND ND ND 6.36 46.9 30-Aug-18 4.76 ND ND ND 5.34 54.1 12-Dec-18 4.41 ND ND ND 5.85 48.7 16-Mar-19 4.08 ND ND ND 6.16 48.7 13-Jun-19 4.18 ND ND ND 5.86 48.3 l l-Sep-19 6.08 ND ND ND 4.77 45.4 14-Dec-19 3.83 ND ND ND 4.76 49.4 17-Mar-20 2.98 ND ND ND 6.17 48.4 l 1-Jun-20 2.87 ND ND ND 6.57 47.6 l 8-Sep-20 2.41 ND ND ND 5.57 45.l 4-Nov-20 2.69 ND ND ND 5.81 49.7 18-Mar-21 1.77 ND ND ND 5.56 48.2 16-Jun-21 ND ND ND ND 7.02 49.5 15-Sep-21 ND ND ND ND 5.56 34.4 8-Dec-21 ND ND ND ND 5.70 49.0 16-Mar-22 ND ND ND ND 5.9 42.0 16-Jun-22 1.0 ND ND ND 5.3 48.4 14-Sep-22 1.1 ND ND ND 4.78 42.2 8-Dec-22 ND ND ND ND 6.20 43.5 23-Mar-23 ND ND ND ND 5.58 47.6 l 5-Jun-23 ND ND ND ND 6.12 50.0 13-Sep-23 ND ND ND ND 6.22 44.0 ,,, G) :::, ns > E ... .e 0 ... .2 .c (.) ~ """ I ~ ~ 0 0 <X) 0 0 r-..: 0 0 CD 0 0 in 0 0 ~ (716n) 0 0 C'? 0 0 N 0 0 0 0 ci 9 ~ -ABV\1-0 ~ £ ~ -6nv--v ~ 0 ~-A0N-8 ~ 80-qa.::1-c:c: Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-26 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ul!ll) (ul!ll) 12-Sep-02 3 ND 24-Nov-02 0 ND 28-Mar-03 0 0.1 23-Jun-03 7800 14.5 15-Aug-03 7400 16.8 12-Sep-03 2500 2.7 25-Sep-03 2600 2.5 29-Oct-03 3100 3.1 8-Nov-03 3000 2.8 29-Mar-04 NA NA 22-Jun-04 NA NA 17-Sep-04 1400 0.53 17-Nov-04 300 0.2 16-Mar-05 310 0.3 30-Mar-05 230 0.2 25-May-05 442 NA NA NA 0.2 NA 31-Aug-05 960 <5 5.4 <5 0.2 NA l-Dec-05 1000 <50 <50 <50 0.3 NA 9-Mar-06 1100 <50 <50 <50 0.2 52 14-Jun-06 830 <50 <50 <50 0.2 52 20-Jul-06 2170 <50 <50 <50 1.4 65 8-Nov-06 282 <] <1 2.8 0.3 54 28-Feb-07 570 <I <I 5.5 0.5 56 27-Jun-07 300 <I <I 13 0.4 49 15-Aug-07 1400 <I <I 36 I 57 I 0-Oct-07 2000 <l <l 14 0.6 57 26-Mar-08 930 <I <l 40 0.1 49 25-Jun-08 1300 <I <l 53 0.56 57 10-Sep-08 630 <l <I 24 0.24 44 15-Oct-08 1700 <I <1 100 0.65 64 4-Mar-09 950 <I <l 51 0.4 49 24-Jun-09 410 <I <1 12 0.2 48 15-Sep-09 850 <I <I 30 0.1 46 14-Dec-09 1100 <I <l 40 2.3 60 I 7-Feb-10 780 <I <1 19 0.2 57 9-Jun-10 1900 <I <I 28 1.1 58 16-Aug-10 2200 <I <I 21 0.6 49 I I-Oct-IO 970 <1 <l 6.5 0.7 65 23-Feb-11 450 ND ND 3.6 0.5 57 Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-26 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2/l) (u2fl) 31-May-ll 1800 ND ND 1.3 0.4 88 17-Aug-ll 720 ND ND 7.2 0.9 58 5-Dec-11 1800 ND ND 2.9 2 69 7-Feb-12 2400 ND ND 16 1.7 98 6-Jun-12 3000 ND ND 21 2.5 73 4-Sep-12 3100 ND ND 31 2.6 73 4-Oct-12 1200 ND ND 4 1.8 68 I l-Feb-13 2120 ND ND 9.34 2.27 81.9 5-Jun-13 4030 ND ND 52.4 2.11 77.9 3-Sep-13 2940 ND ND 33.2 1.18 60.5 29-Oct-13 1410 ND ND 4.03 1.38 72.3 27-Jan-14 1400 ND ND 13.8 0.549 59.4 19-May-14 1960 ND ND 15.4 0.928 53.4 l l-Aug-14 2120 ND 8.7 26 0.7 59 21-Oct-14 2090 ND ND 23.2 0.934 60.1 9-Mar-15 1980 ND ND 27.4 0.732 56.5 8-Jun-15 1980 ND ND 11.2 0.419 62 31-Aug-15 2350 ND 4.05 11.6 0.684 69.6 19-Oct-15 2680 ND 1.32 8.28 0.991 62.6 9-Mar-16 2650 ND 1.32 4.66 1.45 68.3 23-May-16 2220 ND ND 4.57 1.12 66.2 25-Jul-16 3190 ND ND 7.81 1.57 66.4 12-Oct-16 2510 ND ND 4.31 1.18 66.2 8-Mar-17 1290 ND ND 7.65 0.768 58.4 13-Jun-l 7 2450 ND ND 7.59 0.922 64.3 26-Jul-l 7 1230 ND ND 5.26 1.56 61.4 ll-Oct-17 2570 ND ND 7.83 1.18 62.2 12-Mar-18 1210 ND ND 2.14 1.57 60.3 8-Jun-18 1870 ND ND 9.19 0.901 58.7 22-Aug-18 1680 ND ND ND 2.80 91.4 28-Nov-18 1480 ND ND ND 1.96 85.5 8-Mar-19 1110 ND ND 2.20 1.85 69.9 5-Jun-19 1280 ND ND 1.19 2.83 80.7 4-Sep-19 1360 ND ND 1.93 3.08 76.2 I0-Dec-19 1390 ND ND 1.78 0.977 83.2 19-Feb-20 1100 ND ND ND 1.17 88.9 27-May-20 1610 ND ND 3.92 2.93 77.6 4-Sep-20 1130 ND ND 2.57 0.42 70.0 28-Oct-20 866 ND ND ND 3.62 67.4 Chlo,· fol'cn ~b"Olll Chloro,mei,'.fi an e Methyleir~ :N~trate Cb1oridl MW--~ 'ili\dlrachlorlde lCb1loride ug/1) ,(ul!fl)• (ug/1) fJJf!/1), (mg/I) (mgll) 23-Feb-21 3060 ND ND 3.46 0.349 59.5 9-Jun-21 998 ND ND ND 0.810 48.6 24-Aug-21 1580 ND ND ND 0.671 46.6 l-Dec-21 826 ND 5.90 ND 0.518 54.7 9-Mar-22 1030 ND ND ND 0.3 50.2 8-Jun-22 611 ND ND ND 0.22 63.4 30-Aug-22 612 ND ND ND 0.662 57.0 30-Nov-22 1040 ND ND ND 0.337 52.1 7-Mar-23 571 ND ND ND 0.694 61.0 13-Jun-23 2230 ND 2.7 ND 0.294 57.6 9-Aug-23 2610 ND 2.7 ND 0.324 62.3 -g~-ABI/\I-Q ~ ,,, Cl) ::::, ca > £ ~-Bnv-v~ E ... .E 0 ... .2 .c 0 (0 Q~-AON-8~ N I s: :E: 9Q-ABl/\l-8Z zo-das-~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ll) 0 ll) 0 ll) 0 ll) 0 ll) '<t '<t ("I') ("I') N N ..-..- (716n) Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-16 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwn (u2'1) 12-Sep-02 140 ND 24-Nov-02 200 ND 28-Mar-03 260 ND 23-Jun-03 370 ND 12-Sep-03 350 ND 8-Nov-03 400 ND 29-Mar-04 430 ND 22-Jun-04 530 ND l 7-Sep-04 400 ND l 7-Nov-04 350 ND 16-Mar-05 240 ND 25-May-05 212 NA NA NA <0.1 NA 3 l-Aug-05 85 <l 3.2 43 <0.1 NA l-Dec-05 14 <2.5 2.6 5.9 1.4 NA 9-Mar-06 39 <1 1.1 21 3 60 14-Jun-06 13 <1 2.4 8.9 1.9 55 20-Jul-06 5.2 <1 <1 2.7 2.7 60 8-Nov-06 13.6 <1 <1 9.2 5.6 62 28-Feb-07 8.7 <1 <1 6.5 12.3 79 27-Jun-07 2.6 <1 <1 1.8 9.9 75 15-Aug-07 7.1 <1 <1 5.1 5.4 66 10-Oct-07 1.4 <1 <1 <1 4.4 69 26-Mar-08 11 <1 <1 26 ND 52 25-Jun-08 <1 <1 <1 <1 1.46 58 10-Sep-08 10 <1 <1 14 10.5 71 15-Oct-08 3.9 <1 <1 6.6 9.82 89 4-Mar-09 <1 <1 <1 <1 9.6 78 24-Jun-09 <1 <1 <1 <1 8.9 76 15-Sep-09 <1 <1 <l <1 8.8 79 17-Dec-09 <1 <1 <1 <1 5.2 76 24-Feb-10 <1 <1 <1 <1 4.2 77 9-Jun-10 2.1 <1 <1 <1 4.7 64 24-Aug-10 4.3 <1 <1 <1 4.6 72 6-Oct-10 3 <1 <1 <1 3.3 72 22-Feb-l 1 15 ND ND ND 7 86 26-May-l l 16 ND ND ND 5 81 17-Aug-11 9.2 ND ND ND 1.7 63 16-Nov-l l ND ND ND 1.4 0.4 38 18-Jan-12 ND ND ND 1.7 0.1 48 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-16 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u!!ll)_ (ul!fl) 3 l-May-12 ND ND ND ND ND 53 30-Aug-12 ND ND ND ND ND 59 3-Oct-12 ND ND ND 3 ND 53 7-Feb-13 ND ND ND 3 ND 58.1 30-May-13 ND ND ND 4.21 ND 49.8 5-Sep-13 ND ND ND ND ND 54.4 7-Nov-13 13.4 ND ND ND 1.37 56.6 29-Jan-14 6.9 ND ND ND 3.16 66.8 22-May-14 14.6 ND ND ND 4.94 80.7 14-Aug-14 229 ND ND ND 5.1 80 24-Sep-14 371 ND ND ND NIA NIA 29-Oct-14 387 ND ND ND 8.40 92.1 12-Mar-15 153 ND ND ND 4.30 65.3 11-Jun-15 65.3 ND ND ND 1.06 61 3-Sep-15 82 ND ND ND 1.18 65.8 28-Oct-15 112 ND ND ND 1.69 58.3 17-Mar-16 45.9 ND ND ND 1.63 56.5 26-May-16 93.4 ND ND ND 1.89 61.3 3-Aug-16 49 ND ND ND 2.20 60 26-Oct-16 92.9 ND ND ND 2.78 66.7 8-Mar-17 19.1 ND ND ND 2.75 62.2 20-Jun-17 64.3 ND ND ND 1.81 60.6 3-Aug-17 143 ND ND ND 2.63 67.1 11-Oct-17 97.8 ND ND ND 2.12 54.2 20-Mar-18 170 ND ND ND 4.55 85.1 14-Jun-18 54.5 ND ND ND 2.83 62.5 30-Aug-18 54.5 ND ND ND 2.53 73.0 12-Dec-18 52.0 ND ND ND 2.88 68.8 19-Mar-19 60.6 ND ND ND 3.36 66.3 19-Jun-19 76.2 ND ND ND 2.43 71.5 12-Sep-19 99.8 ND ND ND 3.55 72.9 l 8-Dec-19 94.3 ND ND ND 3.37 88.6 18-Mar-20 113 ND ND ND 3.91 76.2 12-Jun-20 141 ND ND ND 4.44 79.7 19-Sep-20 220 ND ND ND 4.74 77.4 4-Nov-20 270 ND ND ND 5.73 85.9 24-Mar-21 248 ND ND ND 5.82 92.6 17-Jun-21 247 ND ND ND 6.74 87.4 23-Sep-21 202 ND ND ND 5.32 79.8 Chloroform ~"·i;rbon hJorome :Jt:-ut& Metlhi ,lep; :irtrr,at;.e :btoJiid:e TW4-,ffl, Te,tr;aefJ tar.lite eb/J10:ttici~ (-ug/l) (uet)) ~ugtl) (J.12/l) (mgfil ~ngll~ - 8-Dec-21 189 ND ND ND 4.85 89.9 23-Mar-22 150 ND ND ND 5.0 84.3 22-Jun-22 120 ND ND ND 4.2 93.2 15-Sep-22 138 ND ND ND 4.41 89.8 9-Dec-22 152 ND ND ND 4.75 91.0 29-Mar-23 179 ND ND ND 5.69 88.5 21-Jun-23 227 ND ND ND 5.02 94.2 27-Sep-23 182 ND ND ND 4.93 91.9 1/) Cl) ::s -ca > E ... 0 -0 ... .2 .c 0 co -I ~ ~ oz-unr-s~ v~-oaa-a · z~-JdV-~ 60-1nr-9 1------+--------+----+-----+----_.ji-----+ ~Q-JdV-6~ 0 0 0 0 0 (0 0 0 LO 0 0 ...r- 0 0 C") (716n) 0 0 N ..... Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-32 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2fl) ,~211) 12-Sep-02 1.6 ND 24-Nov-02 ND ND 28-Mar-03 ND ND 23-Jun-03 ND ND 12-Sep-03 ND ND 8-Nov-03 ND ND 29-Mar-04 ND ND 22-Jun-04 ND ND 17-Sep-04 ND ND 17-Nov-04 ND ND 16-Mar-05 ND ND 30-Mar-05 ND ND 25-May-05 <1 NA NA NA <0.1 NA 31-Aug-05 <1 <1 3.2 <1 <0.1 NA 1-Dec-05 <1 <1 <1 <1 <0.1 NA 9-Mar-06 <1 <1 <1 <1 <0.1 32 14-Jun-06 <1 <1 3.5 <1 <0.1 30 20-Jul-06 <1 <1 1.8 <1 <0.1 32 8-Nov-06 <1 <1 1.5 <1 <0.1 31 28-Feb-07 <1 <1 <1 <1 <0.1 32 27-Jun-07 <1 <1 <1 <1 <0.1 32 15-Aug-07 <1 <1 <l <l <0.1 31 1 0-Oct-07 <1 <1 <l <1 <0.1 32 26-Mar-08 <1 <1 <1 <1 <0.1 31 25-Jun-08 <1 <1 <l <1 <0.05 29 10-Sep-08 <1 <1 <l <l <0.05 30 l 5-Oct-08 <1 <1 <1 <l <0.05 26 4-Mar-09 <1 <1 <1 <l <0.1 30 24-Jun-09 <l <1 <1 <1 <0.1 31 15-Sep-09 <1 <l <l <1 <0.1 33 16-Dec-09 <1 <1 <l <l <0.1 34 l 7-Feb-10 <1 <1 <1 <1 <0.1 38 14-Jun-10 <1 <1 <1 <1 <0.1 32 16-Aug-10 <1 <1 <1 <1 <0.1 28 6-Oct-10 <l <1 <1 <1 <0.1 24 23-Feb-ll ND ND ND ND ND 40 25-May-11 ND ND ND ND ND 31 16-Aug-l l ND ND ND ND ND 33 6-Dec-11 ND ND ND ND ND 32 Chloroform Carbon Chloromethane Methylene Nitrate Chloride MW-32 {ug/1) Tetrachloride {ug/1) Chloride {mg/I) (mg/I) (uwl) (u2/l) 18-Jan-12 ND ND ND ND ND 21 4-Jun-12 ND ND ND ND ND 32 5-Sep-12 ND ND ND ND ND 33 10-Oct-12 ND ND ND ND ND 35 13-Feb-13 ND ND ND ND ND 34.3 l 8-Jun-13 ND ND ND ND ND 34.9 4-Sep-13 ND ND ND ND ND 33 29-Oct-13 ND ND ND ND ND 35.7 29-Jan-14 ND ND ND ND ND 34 23-May-14 ND ND ND ND ND 39.7 26-Aug-14 ND ND ND ND ND 34 29-Oct-14 ND ND ND ND ND 34.9 l 7-Mar-15 ND ND ND ND ND 36.3 l l-Jun-15 ND ND ND ND ND 35.8 9-Sep-15 ND ND ND ND ND 37.7 28-Oct-15 ND ND ND ND ND 34.7 22-Mar-16 ND ND ND ND ND 36.7 8-Jun-16 ND ND ND ND ND 37.2 l 7-Aug-16 ND ND ND ND ND 37.5 31-Oct-16 ND ND ND ND ND 36.9 21-Mar-17 ND ND ND ND ND 33.7 21-Jun-l 7 ND ND ND ND ND 37.2 4-Aug-17 ND ND ND ND ND 38.1 12-Oct-l 7 ND ND ND ND ND 32.6 15-Mar-18 ND ND ND ND ND 39.4 14-Jun-l 8 ND ND ND ND ND 34.4 5-Sep-18 ND ND ND ND ND 41.2 29-Oct-l 8 ND ND ND ND ND 32.9 19-Mar-19 ND ND ND ND ND 35.3 18-Jun-l 9 ND ND ND ND ND 36.5 ll-Sep-19 ND ND ND ND ND 33.7 18-Dec-19 ND ND ND ND ND 36.3 18-Mar-20 ND ND ND ND ND 36.0 12-Jun-20 ND ND ND ND ND 35.6 18-Sep-20 ND ND ND ND ND 34.7 4-Nov-20 ND ND ND ND ND 31.3 22-Mar-21 ND ND ND ND ND 36.8 l 7-Jun-21 ND ND ND ND ND 35.8 23-Sep-2 l ND ND ND ND ND 34.3 It; ·~ ttfo.rm tG_i1 bon ·Chl9Fo:metbane MethyJeJr "111111.l)..te M@title MW-3,2 1,'~ttachlo:,;~ 0Uloride I ~g/,J), (>q,t/1) (ug4) ,€,m$1); @ng/l) ()ng/l) 9-Dec-21 ND ND ND ND ND 35.8 22-Mar-22 ND ND ND ND ND 28.6 16-May-22 ND ND ND ND ND 26.9 15-Sep-22 ND ND ND ND ND 37.2 8-Dec-22 ND ND ND ND ND 35.1 30-Mar-23 ND ND ND ND ND 36.8 14-Jun-23 ND ND ND ND ND 36.8 26-Sep-23 ND ND ND ND ND 37.5 ,n G) ::::J cu > E ... ,E 0 ... .2 .c 0 N C") I 3: :i: '. £Z-JBV\l-9 ~ ' ' : •• ' . ' : '. '. oz-unr-8~ '. '. ' •• : t •• • • H-das-zz '. ' ' : . ' : v~-~aa-a . ' : '. ' u ' Z ~-Jdv'-~ l .. ' ◄ : .. •• 60-1nr-9 ' u ' •• ' ' 90-PO-0~ : ' ' ' • • ' ' : vo-uer-v ~ ' ' l-------------'-------1------1------1---~----l------1---....j.....-----1-~Q-Jdv'-6 ~ ~ "! ..... ..... (7/6n) co c:i co c::i "-f" c::i N c:i 0 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-18 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/1) (uf!/1) 12-Sep-02 440 1.49 24-Nov-02 240 13.3 28-Mar-03 160 13.1 23-Jun-03 110 19 12-Sep-03 68 .0 19.9 9-Nov-03 84.0 20.7 29-Mar-04 90.0 14 22-Jun-04 82.0 12.2 17-Sep-04 38.0 14.5 l 7-Nov-04 51.0 17.3 16-Mar-05 38.0 14.1 25-May-05 29.8 NA NA NA 12.9 NA 31-Aug-05 39 <l 2.8 <l 13.3 NA 1-Dec-05 14 <l 1.1 <l 7.3 NA 9-Mar-06 12.0 <1 1.1 <l 5.9 5.9 14-Jun-06 12.0 <l 1.6 <l 4.7 35 20-Jul-06 10.8 <l 2.7 <l 6.1 35 8-Nov-06 139 <l <l <l 8.7 34 28-Feb-07 9.2 <l <l <l 5.1 30 27-Jun-07 8.0 <l <l <l 4.9 28 15-Aug-07 8.9 <l <l <1 5 32 1 0-Oct-07 7.4 <l <l <l 4.4 27 26-Mar-08 6.4 <l <l <l 0.7 23 25-Jun-08 5.7 <l <l <l 4.55 23 10-Sep-08 8.0 <l <l <l 4.68 26 15-Oct-08 9.4 <I <l <l 5,15 30 4-Mar-09 11.0 <l <l <I 5.2 29 24-Jun-09 16.0 <l <l <I 6.2 30 15-Sep-09 13.0 <I <l <I 5.9 26 22-Dec-09 8.2 <I <l <I 5.4 30 24-Feb-10 69.0 <l <l <I 5.1 41 9-Jun-10 29.0 <l <l <I 9 35 12-Aug-10 29.0 <l <l <l 9 37 13-Oct-l 0 30.0 <1 <l <I 10 50 22-Feb-l 1 39.0 ND ND ND 10 52 26-May-l l 26.0 ND ND ND 9 36 17-Aug-ll 29.0 ND ND ND 4.6 23 7-Dec-11 28 .0 ND ND ND 6.3 23 19-Jan-12 25 .0 ND ND ND 4.4 18 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-18 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (02/1) 13-Jun-12 24.0 ND ND ND 6.6 30 ll-Sep-12 38.0 ND ND ND 6.6 26 3-Oct-12 30.0 ND ND ND 6 27 13-Feb-13 34.9 ND ND ND 5.58 23.1 13-Jun-13 37.9 ND ND ND 8.86 22.9 5-Sep-13 41.0 ND ND ND 12.1 36.2 13-Nov-13 44.3 ND ND ND 14.2 37.1 30-Jan-14 38.9 ND ND ND 12.8 40.9 22-May-14 34.8 ND ND ND 12.2 47 14-Aug-14 32.8 ND ND ND 9.8 49 28-Oct-14 33.0 ND ND ND 11.1 40.8 12-Mar-15 32.0 ND ND ND 11.7 41.6 1 l-Jun-15 30.5 ND ND ND 9.69 43.5 3-Sep-15 28.7 ND ND ND 15.7 47.6 28-Oct-15 52.9 ND ND ND 6.24 39.4 17-Mar-16 56.6 ND ND ND 5.96 40.7 8-Jun-16 60.0 ND ND ND 5.43 43.8 3-Aug-16 56.3 ND ND ND 5.79 40.7 26-Oct-16 60.1 ND ND ND 5.24 43.9 16-Mar-l 7 62.0 ND ND ND 4.47 39.4 20-Jun-17 63.8 ND ND ND 4.5 41.6 3-Aug-17 62.8 ND ND ND 4.24 40.4 10-Oct-17 62.9 ND ND ND 4.43 37.1 15-Mar-18 62.3 ND ND ND 4.32 44.3 13-Jun-18 59.9 ND ND ND 4.09 39.5 30-Aug-18 56.2 ND ND ND 3.51 45.6 13-Dec-18 57.6 ND ND ND 3.60 38.2 19-Mar-19 52.8 ND ND ND 3.85 37.6 19-Jun-19 54.2 ND ND ND 4.01 39.5 11-Sep-19 56.2 ND ND ND 3.25 36.8 18-Dec-19 62.0 ND ND ND 3.02 42.7 18-Mar-20 57.0 ND ND ND 3.71 39.4 12-Jun-20 58.2 ND ND ND 3.62 41.4 I 8-Sep-20 60.0 ND ND ND 3.36 38.7 l 1-Nov-20 58.6 ND ND ND 3.67 39.6 18-Mar-21 52.0 ND ND ND 3.61 41.8 l 6-Jun-21 54.2 ND ND ND 4.24 37.7 22-Sep-21 49.9 ND ND ND 3.37 29.8 8-Dec-21 57.0 ND ND ND 3.90 41.1 'bil@rofor~ ~aitb1>:tl , blorometban:tj Metby,l~.9e :.i' a~ 'rh toride TW4-jjt (~g/1) Tetraclt!loride (ug/1) ~Morid , (Jng/l mg/I) t1fa/l) C:us!/1) 23-Mar-22 56.0 ND ND ND 3.4 39.1 22-Jun-22 62.9 ND ND ND 3.4 48.1 14-Sep-22 60.6 ND ND ND 3.46 44.7 9-Dec-22 62.6 ND ND ND 3.60 44.4 29-Mar-23 54.4 ND ND ND 3.40 45.6 21-Jun-23 54.6 ND ND ND 3.40 47.1 14-Sep-23 55.5 ND ND ND 3.84 45.8 a c.n a ...... a a ...... c.n a (ug/L) ~ a a ~ c.n a (,.) a a (,.) c.n a ~ a a ~ c.n a c.n a a 19-Apr-01 ..J.-------1---..J.-------1----1-----f---+-----f---+------ 14-Jan-04 10-Oct-06 6-Jul-09 -I , II I I I I I 1-Apr-12 i l II I I I I I 27-Dec-14 ...j T I I I I I I I I I 22-Sep-17 18-Jun-20 15-Mar-23 -I ~ ~ I ..a. 00 (") ::r 0 -, 0 o' -, 3 < I» C Cl) UI Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-19 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (ue/1) 12-Sep-02 7700 47.6 24-Nov-02 5400 42 28-Mar-03 4200 61.4 15-May-03 4700 NA 23-Jun-03 4500 11.4 15-Jul-03 2400 6.8 15-Aug-03 2600 4 12-Sep-03 2500 5.7 25-Sep-03 4600 9.2 29-Oct-03 4600 7.7 9-Nov-03 2600 4.8 29-Mar-04 NA NA 22-Jun-04 NA NA 16-Aug-04 7100 9.91 l 7-Sep-04 2600 4.5 l 7-Nov-04 1800 3.6 16-Mar-05 2200 5.3 25-May-05 1200 5.7 3 l-Aug-05 1400 <5 <5 <5 4.6 NA l-Dec-05 2800 <50 <50 <50 <0.1 NA 9-Mar-06 1200 <50 <50 <50 4 86 14-Jun-06 1100 <50 <50 <50 5.2 116 20-Jul-06 11 20 <50 <50 <50 4.3 123 8-Nov-06 1050 1.6 2.6 <l 4.6 134 28-Feb-07 1200 1.3 <l <l 4 133 27-Jun-07 1800 2.3 15-Aug-07 1100 1.9 <l <l 4.1 129 10-Oct-07 1100 1.9 <l <l 4 132 26-Mar-08 1800 2.9 <l <l 2.2 131 25-Jun-08 1000 1 <l <l 2.81 128 10-Sep-08 3600 8.6 <l <l 36.2 113 l 5-Oct-08 4200 12 <l <l 47.8 124 4-Mar-09 1100 1.2 <l <l 3.2 127 24-Jun-09 990 1.2 <l <l 2.4 132 l 5-Sep-09 6600 15 <l <l 0.1 43 14-Dec-09 4700 16 <l <l 26.7 124 17-Feb-10 940 1.3 <l <l 2 144 9-Jun-l 0 1800 4.2 <l <l 4.4 132 16-Aug-10 2000 4.9 <l <l 5.9 142 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-19 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue:/1) (ue:/1) I I-Oct-I 0 1200 1.3 <I <1 2.7 146 17-Feb-ll 3400 17 ND ND 17 135 7-Jun-11 4000 8.3 ND ND 12 148 17-Aug-I 1 970 2.1 ND ND 3 148 5-Dec-11 2200 5.4 ND ND 5 148 23-Jan-12 650 1.5 ND ND 0.6 138 6-Jun-12 460 I.I ND ND 2.4 149 5-Sep-12 950 3.5 ND ND 2.5 149 3-Oct-12 1500 4 ND ND 4.1 150 l l-Feb-13 4210 5.15 ND ND 7.99 164 5-Jun-13 2070 5.15 ND ND 2.95 148 3-Sep-13 8100 20.7 ND ND 17.6 179 29-Oct-13 942 6.42 ND ND 4.7 134 27-Jan-14 586 4.05 ND ND 1.62 134 19-May-14 810 5.51 ND ND 1.34 152 l 1-Aug-14 1410 1.9 8.3 ND 1.6 140 2 l-Oct-14 4310 4.8 ND ND 4.72 130 9-Mar-15 4660 8.92 ND ND 8.56 238 8-Jun-15 1570 2.62 ND ND 0.916 180 4-Sep-15 7860 7.78 ND ND 11.6 326 I 9-Oct-15 7840 12.2 5.46 ND 10.6 252 9-Mar-16 7780 13.5 1.40 ND 15.7 276 23-May-16 12600 23.1 ND ND 1.27 204 25-Jul-16 6040 9.89 ND ND 10.5 214 25-Jul-16 6040 9.89 ND ND 10.5 214 13-Oct-16 6640 10.8 ND ND 10.0 200 8-Mar-17 1240 3.06 ND ND 11.1 461 13-Jun-17 510 1.35 ND ND 0.243 135 26-Jul-17 8840 13.0 ND ND 1.12 218 l l-Oct-17 129 ND ND ND 0.377 139 12-Mar-18 2640 1.36 ND ND 8.61 193 8-Jun-18 2980 3.45 ND ND 0.494 138 22-Aug-18 1910 2.03 ND ND 2.55 166 28-Nov-18 5270 6.18 ND ND 0.233 140 8-Mar-19 2050 2.43 ND ND 6.58 197 5-Jun-19 11500 15.90 ND ND 8.96 160 4-Sep-19 6670 10.10 ND ND 0.332 153 1 0-Dec-19 551 ND ND ND 0.535 147 19-Feb-20 8720 13.7 5.41 ND 10.1 205 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-19 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) I (u2'1) (u-211) 27-May-20 7600 10.4 ND ND 1.)4 147 4-Sep-20 1350 1.98 ND ND 11.6 188 28-0ct-20 660 1.10 ND ND 1.10 104 23-Feb-21 6660 8.40 ND ND 6.61 167 9-Jun-21 775 ND ND ND 4.04 115 24-Aug-21 4450 7.83 1.98 1.25 6.68 172 I-Dec-21 6950 13.20 ND ND I 1.0 184 9-Mar-22 654 ND ND ND 1.7 119 8-Jun-22 2540 2.7 4.0 ND 1.4 128 30-Aug-22 4750 2.5 ND ND 4.76 178 30-Nov-22 7380 8.0 ND ND 3.58 129 7-Mar-23 230 ND ND ND 1.75 122 13-Jun-23 4850 3.1 3.4 ND 6.68 167 9-Aug-23 198 ND ND ND 1.57 122 0 0 0 'St ..... 0 0 0 N ..... & 0 0 0 0 ..... . -. --~ I l 0 0 0 co & . T ' . I T ........._ ....__~ T 0 0 0 co (116n) -• I I - T, I -I -I I --.& T -. T . I - J . I l ~~ -. -. ~ ~ .1::::::::::: -~~ .... ----... ~ -~ - 0 0 0 'St . . -J --- ~ ► 1J +<_-4 ~~ . -~ 0 0 0 N 0 9Q-ABV\l-8Z zo-des-~ Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-21 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2').) (ug/1) 25-May-05 192 NA NA NA 14.6 NA 31-Aug-05 78 <5 <5 <5 10.1 NA l-Dec-05 86 <1 1.0 <l 9.6 NA 9-Mar-06 120 <2.5 <2.5 <2.5 8.5 347 14-Jun-06 130 <2.5 <2.5 <2.5 10.2 318 20-Jul-06 106 <2.5 <2.5 <2.5 8.9 357 8-Nov-06 139 2 <1 <1 8.7 296 28-Feb-07 160 1.8 <1 <1 8.7 306 27-Jun-07 300 5.8 <1 <1 8.6 327 15-Aug-07 140 <l <1 <l 8.6 300 10-Oct-07 120 <l <1 <l 8.3 288 26-Mar-08 380 7 <1 <1 14.3 331 25-Jun-08 160 1.7 <1 <I 8.81 271 10-Sep-08 120 1.6 <1 <I 7.57 244 l 5-Oct-08 170 2 <1 <2 8.00 284 l l-Mar-09 180 <l <1 <l 8.3 279 24-Jun-09 200 <l <1 <l 8.1 291 15-Sep-09 140 <I <1 <1 9.2 281 22-Dec-09 160 <I <1 <l 8.4 256 25-Feb-l0 170 <l <1 <1 8.4 228 I 0-Jun-10 210 1.2 <I <I 12 266 12-Aug-l0 390 9.2 <I <l 14 278 13-Oct-l 0 200 1.2 <I <I 7 210 22-Feb-ll 230 1.2 ND ND 9 303 28-Jun-l I 290 4.8 ND ND 12 290 17-Aug-ll 460 6.3 ND ND 14 287 7-Dec-11 390 6.7 ND ND 13 276 19-Jan-12 420 6.4 ND ND 15 228 13-Jun-12 400 SA ND ND 1 I 285 13-Sep-12 410 6 ND ND 13 142 4-Oct-12 390 7 ND ND 14 270 13-Jan-13 282 5.25 ND ND 11.8 221 18-Jun-13 328 3.49 ND ND 13.8 243 12-Sep-13 244 2.13 ND ND 10.3 207 13-Nov-13 204 ND ND ND 9 206 5-Feb-14 220 6.23 ND ND 11.4 200 22-May-14 240 4.73 ND ND 11.5 243 27-Aug-14 204 ND ND ND 7.1 230 29-Oct-14 229 1.04 ND ND 10 252 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-21 (ug/1) Tetrachloride (og/1) Chloride (mg/I) (mg/I) (owl) (owl) 12-Mar-15 292 1.75 ND ND 10.9 255 8-Jun-15 366 1.92 ND ND 13.1 494 31-Aug-15 281 ND ND ND 14.7 499 l 9-Oct-15 339 ND ND ND 14.3 413 9-Mar-16 390 ND ND ND 14.6 452 23-May-16 545 ND ND ND 13.1 425 25-Jul-16 456 ND ND ND 16.5 457 12-Oct-16 434 ND ND ND 11.4 301 12-Oct-16 434 ND ND ND 11.4 301 8-Mar-l 7 598 2.36 ND ND 12.0 290 13-Jun-l 7 224 1.16 ND ND 9.53 309 26-Jul-l 7 537 1.05 ND ND 18.2 447 11-Oct-l 7 466 ND ND ND 16.9 378 12-Mar-18 421 ND ND ND 15.8 447 8-Jun-18 532 ND ND ND 14.1 387 22-Aug-18 476 ND ND ND 0.236 182 22-Oct-l 8 585 ND ND ND 15.2 392 8-Mar-19 323 ND ND ND 8.99 180 5-Jun-l 9 734 ND ND ND 17.5 456 4-Sep-19 596 ND ND ND 14.7 478 10-Dec-19 794 ND ND ND 5.73 339 19-Feb-20 844 ND 2.58 ND 8.93 446 27-May-20 767 ND ND ND 15.4 353 4-Sep-20 920 ND ND ND 12.6 382 28-Oct-20 948 ND ND ND 16.3 411 23-Feb-21 400 ND ND ND 15.2 454 9-Jun-21 1130 ND ND ND 21.5 461 24-Aug-21 669 ND ND ND 12.9 375 l-Dec-21 649 ND ND ND 17.2 227 9-Mar-22 469 ND ND ND 2.2 110 8-Jun-22 657 ND ND ND 8.9 331 30-Aug-22 1070 ND ND ND 14.3 425 30-Nov-22 482 ND ND ND 2.12 158 7-Mar-23 526 ND ND ND 10.9 335 13-Jun-23 768 ND 1.4 ND 17.3 397 9-Aug-23 49.7 ND 1.4 ND 6.1 161 1/) Cl) ::s C'IS > E ... J2 0 ... .2 .c 0 'I"" N I ~ ~ oc:-unr-s i H-das-c:c: v~-:>aa-a; -c:i-Jdy-i -90-Po-oi 1--------+---------1-------+------+------+ vo-uer-vi 0 0 N ..... 0 0 0 ..... 0 0 CX) 0 0 co (716n) 0 0 '<:t 0 0 N 0 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-22 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2LJ) (u~;/1) 25-May-05 340 NA NA NA 18.2 NA 3 l-Aug-05 290 <5 <5 <5 15.7 NA l-Dec-05 320 <5 <5 <5 15.1 NA 9-Mar-06 390 <10 <IO <10 15.3 236 14-Jun-06 280 <10 <10 <10 14.3 221 20-Jul-06 864 <10 <10 <10 14.5 221 8-Nov-06 350 <l 1.6 <l 15.9 236 28-Feb-07 440 <l <l <l 20.9 347 27-Jun-07 740 <1 <l <l 19.3 273 15-Aug-07 530 <1 <1 <l 19.3 259 10-Oct-07 440 <l <l <l 18.8 238 26-Mar-08 1400 <l <l <l 39.1 519 25-Jun-08 1200 <l <l <l 41.9 271 10-Sep-08 6300 1.3 <l <l 38.7 524 15-Oct-08 630 <2 <2 <2 36.3 539 l l-Mar-09 390 <l <l <1 20.7 177 24-Jun-09 730 <1 <l <1 20.6 177 15-Sep-09 2300 <1 <1 <l 40.3 391 29-Dec-09 380 <l <1 <1 17.8 175 3-Mar-10 2200 <1 <l <l 36.6 427 15-Jun-10 540 <1 <1 <1 19 134 24-Aug-10 340 <I <l <l 15 130 13-Oct-10 340 <1 <l <l 16 134 23-Feb-l l 1300 ND ND ND 18 114 l-Jun-11 210 ND ND ND 17 138 17-Aug-1 l 450 ND ND ND 15 120 7-Dec-11 400 ND ND ND 19 174 19-Jan-12 200 ND ND ND 14 36 13-Jun-12 120 ND ND ND 12.8 35 12-Sep-12 940 ND ND ND 7 121 4-Oct-12 330 ND ND ND 14 130 l l-Feb-13 10600 3.24 ND ND 58 635 5-Jun-13 12500 3.35 ND ND 50.2 586 3-Sep-13 9640 3.25 ND ND 29.7 487 29-Oct-13 13300 8.09 ND ND 45.2 501 27-Jan-14 12100 6.06 ND 2.83 54.6 598 19-May-14 12400 6.65 ND ND 47.2 614 l l-Aug-14 12400 1.9 40 ND 41.5 540 2 I-Oct-14 12400 3.32 1.61 ND 54.9 596 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-22 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (mun Jowl) 9-Mar-15 12700 3.77 4.31 ND 69.2 675 8-Jun-15 8050 2.42 3.42 ND 47.1 390 31-Aug-15 7810 ND 5.47 ND 64.7 557 19-Oct-l 5 7530 ND 5.1 ND 56.1 567 9-Mar-16 6070 ND ND ND 31.1 583 23-May-16 8570 2.64 ND ND 58.4 598 25-Jul-16 5840 ND ND ND 61.3 619 12-Oct-16 3370 1.08 ND ND 61.5 588 8-Mar-17 5320 1.56 ND ND 69.8 566 13-Jun-l 7 3670 1.21 ND ND 70.8 572 26-Jul-l 7 5150 ND ND ND 66.1 391 l l-Oct-17 4770 ND ND ND 80.1 600 12-Mar-18 4530 ND ND ND 62 .3 607 8-Jun-18 3010 ND ND ND 72 .5 580 22-Aug-18 3600 ND ND ND 55.4 613 28-Nov-18 2680 ND ND ND 75.7 567 8-Mar-19 4310 1.02 ND ND 71.9 528 5-Jun-19 4690 ND 1.13 ND 83.9 662 4-Sep-19 3460 ND ND ND 72.5 588 1 0-Dec-19 3820 ND ND ND 59.9 608 19-Feb-20 3910 ND ND ND 57.7 606 27-May-20 2530 ND ND ND 60.5 578 4-Sep-20 3760 ND ND ND 64.8 514 28-Oct-20 3640 ND 6.83 ND 64.9 523 23-Feb-21 5100 ND ND ND 69.6 618 9-Jun-21 4520 ND ND ND 89.3 408 24-Aug-21 3510 ND ND ND 35.1 410 l-Dec-21 3330 ND ND ND 68.8 586 9-Mar-22 3320 ND ND ND 40.4 442 8-Jun-22 2600 ND 4.4 ND 45 564 30-Aug-22 3190 ND ND ND 69.9 637 30-Nov-22 2350 ND ND 1.6 62.0 601 7-Mar-23 1900 ND ND 1.3 49.1 562 13-Jun-23 2180 ND 3.3 2.1 49.8 596 9-Aug-23 1890 ND ND 1.9 58.8 617 oc;-unr-s ~ -H-das-ll "' Cl) :::J c,s > v~-::iaa-a; E ... .E 0 ... 0 .c 0 N N l ~ -Jd'ef-~ I ~ so-1nr-9 90-PQ-Q~ vo-uer-v~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 'V N 0 co co 'V N '<'"" '<'"" '<'"" (716n) Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-23 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) '(u~tn 27-Jun-07 <I <I <I <I <0.1 47 15-Aug-07 <l <) <I <I <0.l 46 10-Oct-07 <l <] <1 <l <0.J 43 26-Mar-08 <1 <1 <] <I <0.1 41 25-Jun-08 <1 <) <) <1 <0.05 41 1 0-Sep-08 <1 <1 <1 <l <0.05 35 15-Oct-08 <2 <2 <2 <2 <0.05 51 4-Mar-09 <] <1 <l <l <0.l 41 24-Jun-09 <1 <I <1 <l <0.1 43 15-Sep-09 <] <1 <1 <l <0.1 43 16-Dec-09 <] <] <I <) <0.1 37 24-Feb-10 <] <] <1 <1 <0.1 45 8-Jun-1 0 <j <I <1 <1 <0.1 40 10-Aug-10 <l <] <1 <1 <0.1 40 5-Oct-10 <1 <I <] <1 <0.1 34 16-Feb-11 ND ND ND ND ND 44 25 -May-1 l ND ND ND ND ND 44 16-Aug-l 1 ND ND ND ND ND 41 15-Nov-11 ND ND ND ND ND 43 17-Jan-12 ND ND ND ND ND 40 31-May-12 ND ND ND ND ND 44 29-Aug-12 ND ND ND ND ND 46 3-Oct-12 ND ND ND ND ND 45 7-Feb-13 ND ND ND ND ND 43.6 30-May-1 3 ND ND ND ND 0.1 16 44.7 5-Sep-13 ND ND ND ND ND 48 .0 7-Nov-13 ND ND ND ND ND 43 .0 23-Jan-14 ND ND ND ND ND 44.6 21 -May-14 ND ND ND ND ND 42.3 13-Aug-14 ND ND ND ND ND 46 .0 28-Oct-14 ND ND ND ND ND 46.8 12-Mar-15 ND ND ND ND ND 47.3 I0-Jun-1 5 ND ND ND ND ND 48.4 3-Sep-15 ND ND ND ND ND 54.l 28-Oct-15 ND ND ND ND ND 46.4 16-Mar-16 ND ND ND ND ND 49.l 26-May-16 ND ND ND ND ND 50.4 3-Aug-16 ND ND ND ND ND 49.6 20-Oct-16 ND ND ND ND ND 52.l Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-23 (ug/1) Tetrachloride (ug/1) Chloride (mg/1) (mg/1) (uwl) (JJwl) 15-Mar-l 7 ND ND ND ND ND 47.7 15-Jun-17 ND ND ND ND ND 51.5 2-Aug-17 ND ND ND ND ND 51.8 10-Oct-17 ND ND ND ND ND 44.7 14-Mar-18 ND ND ND ND ND 53 .8 13-Jun-18 ND ND ND ND ND 47.6 30-Aug-18 ND ND ND ND ND 56.0 12-Dec-l 8 ND ND ND ND ND 54.9 16-Mar-19 ND ND ND ND ND 48.9 13-Jun-19 ND ND ND ND ND 50.2 l l-Sep-19 ND ND ND ND ND 47.9 14-Dec-19 ND ND ND ND ND 54.4 17-Mar-20 ND ND ND ND ND 50.0 l l-Jun-20 ND ND ND ND ND 49.0 l 7-Sep-20 ND ND ND ND ND 48.8 4-Nov-20 ND ND ND ND ND 49.3 l 7-Mar-21 ND ND ND ND ND 51.6 l 6-Jun-21 ND ND ND ND ND 48.8 15-Sep-21 ND ND ND ND ND 42.8 8-Dec-21 ND ND ND ND ND 51.2 22-Mar-22 ND ND ND ND ND 43.8 16-Jun-22 ND ND ND ND 0.10 49.2 14-Sep-22 ND ND ND ND ND 45.0 7-Dec-22 ND ND ND ND ND 47.5 29-Mar-23 ND ND ND ND ND 50.2 20-Jun-23 ND ND ND ND ND 51.3 13-Sep-23 ND ND ND ND ND 42.3 1/) Q) ::s ca > E .. ~ 0 .c 0 M ~ ~ .-' .-.- C"') N I 'q" s f- C ·- "'C Q) .... 0 Q) .... Q) "'C C Q) Q) ..0 .... 0 C CJ) CtJ .c E s.... ~ 0 s.... 0 -.c () ' .-0 .. £z-unr •J . . . . . . . ~z-unr • • • • . . . . ·~ •• •• • . • • •• •l •• •• • •• •• a • l g~-unr •• •• •• • • • •• ~ • • • • ·• • ~ ·• ·• ·• ·• • ·• -~ eo-unr • . s • ► • ·• ' Lo-unr 0 0 0 0 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-24 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwl) (02/1) 27-Jun-07 2.6 <1 <1 <1 26.1 770 15-Aug-07 2.2 <1 <l <l 29 791 10-Oct-07 1.5 <l <l <l 24.7 692 26-Mar-08 1.5 <l <1 <l 24.4 740 25-Jun-08 1.4 <l <1 <l 45 .3 834 10-Sep-08 2.9 <l <I <l 38.4 1180 15-Oct-08 <2 <2 <2 <2 44.6 1130 4-Mar-09 1.4 <l <I <] 30.5 1010 24-Jun-09 1.5 <I <I <1 30.4 759 15-Sep-09 1.4 <I <I <1 30.7 618 17-Dec-09 1.2 <1 <l <1 28.3 1080 25-Feb-IO 1.3 <l <l <l 33.1 896 9-Jun-10 1.7 <l <l <1 30 639 24-Aug-10 1.8 <l <l <1 31 587 6-Oct-10 1.4 <l <l <l 31 522 l 7-Feb-11 1.8 ND ND ND 31 1100 26-May-11 1.1 ND ND ND 35 1110 17-Aug-ll 1.7 ND ND ND 34 967 7-Dec-11 1.2 ND ND ND 35 608 18-Jan-12 ND ND ND ND 37 373 6-Jun-12 ND ND ND ND 37 355 30-Aug-12 1.1 ND ND ND 37 489 3-Oct-12 1.0 ND ND ND 38 405 l l-Feb-13 5.7 ND ND ND 35 .9 1260 5-Jun-13 17.4 ND ND ND 23 .7 916 3-Sep-13 21.8 ND ND ND 32.6 998 29-Oct-13 32.5 ND ND ND 34.6 1030 27-Jan-14 78.5 ND ND 1.18 31.6 809 19-May-14 62.7 ND ND ND 35 1020 I l-Aug-14 76.3 ND ND ND 31.5 1150 2 l-Oct-14 25.8 ND ND ND 35.7 1050 9-Mar-15 49.2 ND ND ND 34.6 944 8-Jun-15 4.3 ND ND ND 31.8 1290 3 l-Aug-15 46.9 ND ND ND 25.3 788 19-Oct-15 25.3 ND ND ND 29.6 909 9-Mar-16 22.8 ND ND ND 29.1 989 23-May-16 69.6 ND ND ND 24.2 771 25-Jul-16 17.8 ND ND ND 34.4 1180 12-Oct-l 6 20.8 ND ND ND 31.9 1010 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-24 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uwl) tu2fl) 11 8-Mar-17 18.3 ND ND ND 41.3 1090 13-Jun-17 17.2 ND ND ND 39.9 1080 26-Jul-l 7 17.8 ND ND ND 40.0 1230 ll-Oct-17 16.0 ND ND ND 31.7 895 12-Mar-18 24.9 ND ND ND 44.9 1320 14-Jun-l 8 49.2 ND ND ND 33.6 792 22-Aug-18 35.0 ND ND ND 33.8 996 28-Nov-18 21.0 ND ND ND 38.4 1100 8-Mar-19 28.1 ND ND ND 39.3 1040 5-Jun-19 28.8 ND ND ND 33.2 1020 4-Sep-1 9 31.1 ND ND ND 36.4 1130 10-Dec-19 43.3 ND ND ND 33.8 1090 l 9-Feb-20 61.7 ND ND ND 37.1 1010 27-May-20 49.4 ND ND ND 41.7 1060 4-Sep-20 63.8 ND ND ND 39.1 1100 28-Oct-20 72.6 ND ND ND 35.9 1050 23-Feb-21 96.2 ND 3.6 ND 41.9 1170 9-Jun-21 41.2 ND ND ND 48.0 938 24-Aug-21 103 ND ND ND 26.7 1010 1-Dec-21 112 ND ND ND 43.6 1140 9-Mar-22 114 ND ND ND 36.2 890 8-Jun-22 124 ND ND ND 35 944 30-Aug-22 88.9 ND ND ND 32.0 868 30-Nov-22 79.5 ND ND ND 27.6 972 7-Mar-23 99.5 ND ND ND 36.2 932 13-Jun-23 58.5 ND ND ND 35.9 866 9-Aug-23 65.7 ND ND ND 26.2 928 UI C1J :::, IV > E ... 0 -0 ... ..9 .c u o::t N I o::t 3: I- 0 ci ,::j" ,-I 0 ci N ,-I 0 ci 0 ,-I 0 ci 00 (1/~n) C! 0 lD 0 ci <;j" C! 0 N 91-Ael/\l-01: n-~nv-111 Q"[:-A0N-81 80-qa:i-n: 0 ci Chloroform Carbon Chloromethane Methylene Nitrate Chloride I TW4-25 (ugn) Tetrachloride (ugn) Chloride (mgn) (mgn) (u,z/1) (W!lll 27-Jun-07 <l <1 <1 <J 17. l 395 15-Aug-07 <I <1 <l <1 16.7 382 I 0-Oct-07 <I <1 <l <l 17 356 26-Mar-08 <l <1 <] <I 18.7 374 25-Jun-08 <l <] <] <l 22.1 344 l0-Sep-08 <] <l <1 <l 18.8 333 1 S-Oct-08 <2 <2 <2 <2 21.3 366 4-Mar-09 <] <I <l <1 15.3 332 24-Jun-09 <I <1 <l <] 15.3 328 15-Sep-09 <] <l <l <I 3.3 328 16-Dec-09 <I <1 <1 <l 14.2 371 23-Feb-10 <l <1 <) <I 14.4 296 8-Jun-10 <J <1 <I <] 16 306 10-Aug-10 <l <I <l <1 14 250 5-Oct-10 <I <l <l <l 15 312 16-Feb-1 I ND ND ND ND 15 315 25-May-ll ND ND ND ND 16 321 16-Aug-1 I ND ND ND ND 16 276 15-Nov-1 J ND ND ND ND 16 294 18-Jan-12 ND ND ND ND 16 304 31-May-12 ND ND ND ND 16 287 l l-Sep-12 ND ND ND ND 17 334 3-Oct-12 ND ND ND ND 17 338 ll-Feb-13 ND ND ND ND 9.04 190 5-Jun-13 ND ND ND ND 5.24 136 3-Sep-13 ND ND ND ND 5.69 119 29-Oct-13 ND ND ND ND 6.1 88.6 27-Jan-14 ND ND ND ND 2. 16 85.7 19-May-14 ND ND ND ND 1.21 51.1 l l-Aug-14 ND ND ND ND 1.6 67 21-Oct-14 ND ND ND ND 1.03 58.1 9-Mar-15 ND ND ND ND 14.4 310 8-Jun-1 5 ND ND ND ND 1.14 58.3 31-Aug-15 ND ND ND ND 1.63 69.2 21-Oct-15 ND ND ND ND 1.78 93.7 9-Mar-16 ND ND ND ND 0.837 62.7 23-May-16 ND ND ND ND 0.959 75.5 25-Jul-16 ND ND ND ND 1.78 74.1 12-Oct-16 ND ND ND ND 1.24 59.8 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-25 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (m!ll) (uwl) 8-Mar-17 1.15 ND ND ND 17 285 13-Jun-17 ND ND ND ND 0.976 69.8 26-Jul-17 ND ND ND ND 1.23 70.1 11-Oct-l 7 ND ND ND ND 1.29 68.0 12-Mar-18 ND ND ND ND 2.23 70.5 14-Jun-18 ND ND ND ND 1.14 60.3 22-Aug-18 ND ND ND ND 0.810 69.1 28-Nov-18 ND ND ND ND 0.634 59.7 8-Mar-19 ND ND ND ND 0.639 65.0 5-Jun-19 ND ND ND ND 0.821 59.0 4-Sep-l 9 ND ND ND ND 0.548 58.1 1 0-Dec-19 ND ND ND ND 0.841 73".l 19-Feb-20 ND ND ND ND 0.607 86.0 27-May-20 ND ND ND ND 0.851 76.8 4-Sep-20 ND ND ND ND 0.994 67.3 28-Oct-20 ND ND ND ND 1.64 61.3 23-Feb-21 ND ND ND ND 3.43 100 9-Jun-21 ND ND ND ND 1.57 55.1 24-Aug-21 ND ND 1 ND 0.793 69.3 l-Dec-21 ND ND ND ND 0.978 93.7 9-Mar-22 ND ND ND ND 1.8 70.3 8-Jun-22 ND ND ND ND 0.88 72.8 30-Aug-22 ND ND ND ND 1.51 82.5 30-Nov-22 ND ND ND ND 1.47 67.2 7-Mar-23 ND ND ND ND 1.96 96.7 13-Jun-23 ND ND ND ND 1.03 73.0 9-Aug-2J ND ND ND ND 0.790 79.9 ► ► £z-unr ► ► ► ► ► ► ► ~ iz-unr ► ~ ► ► ► ► ~ s~-unr ► ► ► ► • ► ► t H-unr . ~ ► ► '► •► ► . ~ !H-unr ► ► ► ► ► a ~ ► t ► • ► ► • ► , ► • ► ◄► ◄► ► ◄► ~ so-unr ◄► • t ◄► . ► ◄► ' ' ' Lo-unr ..... ,.... 0 0 0 (716n) Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-26 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ug/1) (uwt) - 15-Jun-l 0 13 <1 <1 <1 7.9 33 I l-Aug-10 5 <1 <] <l 9 17 6-Oct-10 5.4 <1 <1 <l 9.6 22 22-Feb-l I 2.0 ND ND ND IO 30 26-May-l l 2.9 ND ND ND 10 15 17-Aug-l 1 2.8 ND ND ND 11 19 7-Dec-1 I 5.2 ND ND ND 10 26 18-Jan-12 7.0 ND ND ND 11 17 6-Jun-12 4.1 ND ND ND 12 19 I l-Sep-12 4.9 ND ND ND 9 19 3-Oct-12 6.0 ND ND ND 12 19 7-Feb-13 5.0 ND ND ND 12.5 16.6 13-Jun-l 3 2.1 ND ND ND 13.6 14.5 5-Sep-13 2.8 ND ND ND 11.7 17.6 7-Nov-13 3.4 ND ND ND 'I 5.9 15.9 29-Jan-14 1.4 ND ND ND 14.2 16.9 21-May-14 4.2 ND ND ND ]2.5 15.4 l l-Aug-14 1.3 ND ND ND 10.8 15 28-Oct-14 2.45 ND ND ND 12.3 14.6 l 2-Mar-15 2.37 ND ND ND 14.4 14.4 1 0-Jun-1 5 6.12 ND 1.17 ND 1 l.3 14.4 3-Sep-15 4.77 ND ND ND 14.2 14.0 28-Oct-15 3.45 ND ND ND 13.9 13.3 16-Mar-16 1.80 ND ND ND 16.9 13.7 26-May-16 8.23 ND ND ND 15.2 13.9 3-Aug-16 4.42 ND ND ND 17.9 13 .9 20-Oct-l 6 19.9 ND ND ND 15.0 14.2 16-Mar-17 46.1 ND ND ND 15.8 16.2 20-Jun-17 244 ND ND ND 15.2 19.0 3-Aug-17 419 ND ND ND 15.2 25.8 11-Oct-17 608 ND ND ND 10.0 27.3 21 -Mar-18 1050 ND ND ND 12.2 35.5 14-Jun-18 960 ND ND ND 13.2 33 .5 5-Sep-18 916 ND ND ND ]3.5 38.9 13-Dec-18 1050 ND ND ND 11.8 33.4 20-Mar-19 963 ND ND ND 12.2 32.9 l 9-Jun-19 1070 ND ND ND 12.6 35.8 12-Sep-19 877 ND ND ND 10.9 32.0 l 8-Dec-19 1070 ND ND ND 10.3 38.3 18-Mar-20 1090 ND ND ND 11.9 36.3 12-Jun-20 1140 ND ND ND 11.1 35.I Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-26 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (µsr/1) (uw l) 19-Sep-20 1120 ND ND ND 10.5 34.8 l l-Nov-20 l 160 ND ND ND 11.9 36.3 24-Mar-21 1030 ND ND ND 11.3 38.9 I 7-Jun-21 1020 ND ND ND 14.2 34.0 23-Sep-21 927 ND ND ND 12.] 36.5 9-Dec-21 993 ND ND ND 8.15 34.9 24-Mar-22 952 ND 2.4 ND 10.9 33.0 22-Jun-22 790 ND 2.4 ND 9.9 34.0 l 5-Sep-22 930 ND ND ND I 0.3 36.7 9-Dec-22 890 ND ND ND 10.4 32.7 29-Mar-23 703 ND ND ND 10.5 34.5 21-Jun-23 659 ND ND ND 10.0 33.5 27-Sep-23 709 ND ND ND 10.2 34.0 0 N 0 0 .i:,. 0 0 CJ'\ 0 0 (ug/1) 00 0 0 .... 0 0 0 .... N 0 0 .... .i:,. 0 0 Jun-10 ----------------------.------,.----....-------. Nov-10 Apr-11 Sep-11 Feb-12 Jul-12 Dec-12 May-13 -, Oct-13 -, Mar-14 Aug-14 Jan-15 Jun-15 Nov-15 Apr-16 :i Sep-16 - Feb-17 Jul-17 Dec-17 May-18 Oct-18 Mar-19 Aug-19 Jan-20 Jun-20 Nov-20 Apr-21 Sep-21 Feb-22 . Jul-22 • Dec-22 • May-23 - i I N en n -:r 0 .. 0 o' .. 3 < DI C: tD Ill Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-27 Tetrachloride (ug/1) (m!/1) (ug/1) Chloride (ug/1) (mg/I) (mg/I) - 24-Jan-12 9 ND ND ND 24 11 13-Jun-12 ND ND ND ND 41 17 30-Aug-12 ND ND ND ND 37 21 3-Oct-12 ND ND ND ND 36 18 7-Feb-13 ND ND ND ND 31.2 18.8 30-May-13 ND ND ND ND 29.4 20.3 29-Aug-13 ND ND ND ND 27.2 19 6-Nov-13 ND ND ND ND 29.8 21.8 23-Jan-J 4 ND ND ND ND 31.3 21.8 21-May-14 ND ND ND ND 31. I 20.6 13 -Aug-14 ND ND ND ND 27.0 23 23-Oct-14 ND ND ND ND 28.2 24.4 11-Mar-15 ND ND ND ND 26.5 26.2 l0-Jun-1 5 ND ND ND ND 24.0 26.8 2-Sep-15 1.30 ND ND ND 20.9 26.8 28-Oct-l 5 1.60 ND ND ND 23.5 26.2 16-Mar-l 6 2.1 1 ND ND ND 25.0 28.0 26-May-16 3.16 ND ND ND 21.2 28.7 3-Aug-16 2.78 ND ND ND 21.8 27.1 20-Oct-16 3.80 ND ND ND 19.3 29.4 l 5-Mar-17 4.33 ND ND ND 22.2 28.3 l 5-Jun-17 5.65 ND ND ND 23.8 27.9 2-Aug-17 6.05 ND ND ND 20.0 29.5 I0-Oct-17 5.91 ND ND ND 21.5 26.3 14-Mar-l 8 6.95 ND ND ND 19.5 30.3 13-Jun-18 5.95 ND ND ND 22.0 28.3 30-Aug-18 7.32 ND ND ND 18.1 31.4 12-Dec-18 7.70 ND ND ND 20.8 28.2 16-Mar-19 6.54 ND ND ND 21.5 26.2 13-Jun-19 8.24 ND ND ND 22.3 28.6 1 I-Sep-19 7.58 ND ND ND 21.2 25.3 14-Dec-19 7.97 ND ND ND 22.0 27.4 l 7-Mar-20 8.04 ND ND ND 23.6 27.6 l l-Jun-20 7.92 ND ND ND 21.5 28.0 I 8-Sep-20 5.62 ND ND ND 25.2 26.2 4-Nov-20 7.80 ND ND ND 16.7 26.8 I 8-Mar-21 4.66 ND ND ND 23.0 27.5 16-Jun-2 l 4.26 ND ND ND 23.8 25.8 15 -Sep-21 3.81 ND ND ND 21.1 21.7 8-Dec-21 4.08 ND ND ND 24.9 26.4 23-Mar-22 3.3 ND ND ND 21.3 22.7 I 6-Jun-22 3.1 ND ND ND 20 22.3 Chlot@form Cairb:0'D CJiloromethane lktby,lene Nitrat~ 'Chlorid TW4-~ Tetm¢bJQride ~} (u2m (-.g/l) Chloride ( ug/J) (mg/1) .mg/l) 14-Sep-22 4.3 ND ND ND 16.9 23.2 8-Dec-22 2.3 ND ND ND 18.1 16.2 29-Mar-23 2.0 ND ND ND 20.9 22.8 2 I-Jun-23 2.5 ND ND ND 16.9 25.7 14-Sep-23 2.9 ND ND ND 15.8 26.3 (ug/1) 0 .... N w .i,. V, Cl"I -..J 00 \0 .... 0 ~:~=H 1 I ' I I I I I ! i r I Jul-12 i Sep-12 Nov-12 Jan-13 Mar-13 May-13 Jul-13 • Sep-13 Nov-13 Jan-14 Mar-14 May-14 Jul-14 Sep-14 Nov-14 •• Jan-15 . Mar-15 • May-15 Jul-15 Sep-15 ·• Nov-15 Jan-16 ., Mar-16 ·• May-16 Jul-16 Sep-16 •• Nov-16 Jan-17 Mar-17 • May-17 .. Jul-17 Sep-17 • Nov-17 Jan-18 Mar-18 May-18 Jul-18 Sep-18 Nov-18 Jan-19 Mar-19 May-19 Jul-19 Sep-19 Nov-19 Jan-20 Mar-20 May-20 Jul-20 Sep-20 Nov-20 Jan-21 Mar-21 May-21 •. Jul-21 • Sep-21 Nov-21 Jan-22 Mar-22 May-22 Jul-22 Sep-22 Nov-22 - Jan-23 Mar-23 'l May-23 Jul-23 Sep-23 , -I ! I N .... n :r 0 a o' ~ 3 ~ C 11) Ill Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-28 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u 2'1) (u!!/1) 19-Jun-13 ND ND ND ND 14.9 44.6 29-Aug-13 ND ND ND ND 17.3 45.3 6-Nov-13 ND ND ND ND 16.2 45.2 22-Jan-14 ND ND ND ND 16.9 47.8 21-May-14 ND ND ND ND 16.5 45.7 13-Aug-14 ND ND ND ND 14.2 50 23-Oct-14 ND ND ND ND 16.5 52.1 11-Mar-15 ND ND ND ND 19 52.2 1 0-J un-15 ND ND ND ND 19 56.4 2-Sep-15 ND ND ND ND 17.8 61.4 21-Oct-15 ND ND ND ND 18.7 52.7 15-Mar-16 ND ND ND ND 34.0 61.6 25-May-1 6 ND ND ND ND 29.0 67.1 27-Jul-16 ND ND ND ND 31.3 70.1 19-Oct-16 ND ND ND ND 25.5 70.9 14-Mar-17 ND ND ND ND 24.4 64.2 14-Jun-1 7 ND ND ND ND 26.0 68.6 27-Jul-1 7 ND ND ND ND 24.8 67.1 I 0-Oct-17 ND ND ND ND 24.8 57.4 14-Mar-18 ND ND ND ND 17.2 65.0 12-Jun-18 ND ND ND ND 19.0 55.7 29-Aug-18 ND ND ND ND 16.0 63.8 30-Nov-18 ND ND ND ND 17.7 52.4 l.6-Mar-19 ND ND ND ND 17.2 51.7 13-Jun-19 ND ND ND ND 15.0 51.8 l l-Sep-19 ND ND ND ND 10.2 49.0 12-Dec-19 ND ND ND ND 9.48 50.0 17-Mar-20 ND ND ND ND 9.87 52.l 10-Jun-20 ND ND ND ND 9.55 49.8 17-Sep-20 ND ND ND ND 8.36 47.4 4-Nov-20 ND ND ND ND 7.76 49.0 17-Mar-2 l ND ND ND ND 8.68 51.8 15-Jun-21 ND ND N D ND 9.09 48.5 15-Sep-21 ND ND ND ND 8.08 40.7 7-Dec-21 ND ND ND ND 7.06 47.8 l 5-Mar-22 ND ND ND ND 7.8 38.8 I 5-J un-22 ND ND ND ND 15 52.3 13-Sep-22 ND ND ND ND 16.2 58.5 7-Dec-22 ND ND ND ND 16.6 52.0 22-Mar-23 ND ND ND ND 11.9 46.1 15-Jun-23 ND ND ND ND ] 1.9 51.3 13-Sep-23 ND ND ND ND 11.5 SJ.I Jun-13 Sep-13 Dec-13 Mar-14 Jun-14 Sep-14 Dec-14 Mar-15 Jun-15 Sep-15 Dec-15 Mar-16 Jun-16 Sep-16 Dec-16 Mar-17 Jun-17 Sep-17 Dec-17 Mar-18 Jun-18 Sep-18 Dec-18 Mar-19 Jun-19 Sep-19 Dec-19 Mar-20 Jun-20 Sep-20 Dec-20 Mar-2 Jun-2 Sep-2 Dec-2 Mar-2 Jun-2 Sep-2 Dec-2 Mar-2 Jun-2 Sep-2 0 J J • J J • 1 • ·, . • l ► ◄ • ► . ' ► ► 0 1 1 ! J ► .. <► l ► ► l ► <► !► i ► ► 1 ► •► ► ; ► • ► ► ; ► l ► 0 0 0 0 (ug/L) ...... .... ' ' () :::::r 0 ..., 0 o' ..., 3 :::::r Q) en :::J 0 ,-+ O" CD CD :::J a. CD ,-+ CD (') ,-+ CD a. :::J --i ~ ~ I I\.) CX) ' i I N 00 0 :::r 0 ... 0 o' ... 3 < s» C Cl) en Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-29 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (ue/1) 19-Jun-13 242 ND ND ND 4.63 44.8 11-Jul-13 262 ND ND ND 3.52 37.7 26-Sep-13 246 ND ND ND 4.18 41.4 13-Nov-l 3 260 ND ND ND 4.11 42.5 5-Feb-14 258 ND ND ND 4.63 41.9 22-May-14 262 ND ND ND 3.52 38.2 27-Aug-l 4 242 ND ND ND 3.4 41 29-Oct-14 290 ND ND ND 3.64 41 12-Mar-l 5 299 ND ND ND 4.14 40.5 11-Jun-15 329 ND ND ND 2.95 42.5 3-Sep-15 276 ND ND ND 2.19 47.3 29-Oct-15 63] ND ND ND 2.74 39.8 17-Mar-l 6 335 ND ND ND 2.92 40.3 8-Jun-16 366 ND ND ND 2.51 42.9 4-Aug-16 401 ND ND ND 2.44 40.6 26-Oct-]6 392 ND ND ND 2.4 44.2 16-Mar-17 446 ND ND ND 2.24 41.5 21-Jun-17 420 ND ND ND 2.26 42.0 4-Aug-1 7 466 ND ND ND 2.35 42.9 11-Oct-17 466 ND ND ND 2.45 37.7 21-Mar-I 8 533 ND ND ND 2.44 43 .1 14-Jun-18 474 ND ND ND 2.67 40.1 5-Sep-18 454 ND ND ND 2.52 45.9 13-Dec-1 8 521 ND ND ND 2.50 40.9 20-Mar-19 507 ND ND ND 2.67 39.9 19-Jun-l 9 537 ND ND ND 2.56 39.4 12-Sep-l 9 549 ND ND ND 2.55 38.0 l 8-Dec-19 630 ND ND ND 2.58 44.8 l 8-Mar-20 652 ND ND ND 3.1 41.0 12-Jun-20 686 ND ND ND 3.18 42.2 19-Sep-20 621 ND ND ND 2.9 39.9 1 l-Nov-20 671 ND ND ND 3.27 40.8 24-Mar-21 577 ND ND ND 3.09 44.3 17-Jun-21 543 ND ND ND 3.59 40.0 23-Sep-21 602 ND ND ND 3.29 40.1 9-Dec-21 625 ND ND ND 2.39 38.7 23-Mar-22 624 ND ND ND 3.1 39.l 22-Jun-22 398 ND ND ND 2.9 41.5 l 5-Sep-22 591 ND ND ND 2.80 41.8 9-Dec-22 588 ND ND ND 2.69 41.3 29-Mar-23 467 ND ND ND 2.74 41.3 21-Jun-23 490 ND ND ND 2.65 42.2 JLloroform Carbon Cblorom-etbane Methylene NilfJ18!'t6 Chloride TW-4--.29 ug/1) 1l' .ifrachlo:rti ~g/1) Cblorttl (m_g[J) (rng/D (utr/1) Juell)' 27-Sep-23 457 ND ND ND 2.82 41.1 Jun-13 Aug-13 Oct-13 Dec-13 Feb-14 Apr-14 Jun-14 Aug-14 Oct-14 Dec-14 Feb-15 Apr-15 Jun-15 Aug-15 Oct-15 Dec-15 Feb-16 Apr-16 Jun-16 Aug-16 Oct-16 Dec-16 Feb-17 Apr-17 Jun-17 Aug-17 Oct-17 Dec-17 Feb-18 Apr-18 Jun-18 Aug-18 Oct-18 Dec-18 Feb-19 Apr-19 Jun-19 Aug-19 Oct-19 Dec-19 Feb-20 Apr-20 Jun-20 Aug-20 Oct-20 Dec-20 Feb-21 Apr-21 Jun-21 Aug-21 Oct-21 Dec-21 Feb-22 Apr-22 Jun-22 Aug-22 Oct-22 Dec-22 Feb-23 Apr-23 Jun-23 Aug-23 0 I-' 0 0 N 0 0 w 0 0 {ug/1) .i:,. 0 0 1.11 0 0 en 0 0 --.J 0 0 00 0 0 -t :e .i=-1 N U) n ::r 0 ~ ... 3 < Al C 11) Ill Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-30 Tetrachloride Chloride (ug/1) (ug/1) (ug/1) (u2'1) (mg/I) (mg/I) 19-Jun-13 ND ND ND ND 0.948 36 29-Aug-13 ND ND ND ND 0.952 36.3 7-N ov-13 ND ND ND ND 1.24 35.9 23-Jan-14 ND ND ND ND 1.36 36 21-May-14 ND ND ND ND 1.44 31.99 13-Aug-14 ND ND ND ND 1.5 38 23-Oct-14 ND ND ND ND 1.84 37.1 l1-Mar-15 1.65 ND ND ND 2.15 38.3 l 0-Jun-1 5 2.25 ND ND ND 1.75 40.3 3-Sep-15 3.27 ND ND ND 1.75 44.2 28-Oct-15 3.48 ND ND ND 1.86 37.8 17-Mar-16 5.16 ND ND ND 2.74 39.6 26-May-16 7.38 ND ND ND 2.04 40.2 3-Aug-16 6.79 ND ND ND 2.32 38.6 20-Oct-16 8.69 ND ND ND 2.51 41.3 15-Mar-l 7 13.6 ND ND ND 2.7 37.7 J 5-Jun-17 15.2 ND ND ND 2.95 37.8 3-Aug-17 15.7 ND ND ND 3.11 39.8 I 0-Oct-17 13.4 ND ND ND 2.58 34.9 15-Mar-18 ] 6.4 ND ND ND 3.63 41.0 13-Jun-18 16.9 ND ND ND 3.93 37.4 30-Aug-18 19.8 ND ND ND 3.79 44.1 12-Dec-18 23.9 ND ND ND 3.70 35.5 16-Mar-19 25.3 ND ND ND 4.08 35.9 13-Jun-l 9 31.5 ND ND ND 4.13 27.2 I 1-Sep-19 34.8 ND ND ND 3.62 34.5 I 8-Dec-19 44.9 ND ND ND 3.62 39.1 17-Mar-20 53 .1 ND ND ND 3.85 37.5 12-Jun-20 65.4 ND ND ND 3.69 38.6 18-Sep-20 67.7 ND ND ND 3.49 35.0 1 I-Nov-20 82.8 ND ND ND 3.64 37.1 18-Mar-2 I 74.8 ND ND ND 3.54 37.6 17-Jun-21 78.7 ND ND ND 4.19 383 22-Sep-21 78.2 ND ND ND 2.60 23.5 8-Dec-21 81.2 ND ND ND 3.14 37.9 23-Mar-22 73.6 ND ND ND 3.0 35.l 22-Jun-22 70.8 ND ND ND 2.80 413 14-Sep-22 69.8 ND ND ND 2.61 30.5 9-Dec-22 60.5 ND ND ND 2.67 36.5 29-Mar-23 45.5 ND ND ND 2.84 36.6 21-Jun-23 47.0 ND ND ND 3.02 36.8 14-Sep-23 47.8 ND ND ND 3.34 36.7 0 0 Jun-13 Oct-13 • Feb-14 Jun-14 Oct-14 Feb-15 Jun-15 Oct-15 Feb-16 Jun-16 Oct-16 • Feb-17 Jun-17 Oct-17 Feb-18 Jun-18 Oct-18 Feb-19 Jun-19 Oct-19 Feb-20 Jun-20 Oct-20 Feb-21 Jun-21 Oct-21 Feb-22 Jun-22 Oct-22 Feb-23 Jun-23 ...... 9 0 I\.) 9 0 c,J 9 0 (ug/L) ~ 9 0 01 9 0 0) 0 0 --.J 9 0 CXl 9 0 <D 9 0 i I w 0 0 :T 0 ... 0 o' ... 3 ~ E' CD C/1 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-31 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uf/1). (1'.f/1) l 9-Jun-13 ND ND ND ND 1.26 28.4 5-Sep-13 ND ND ND ND 1.1 29.4 7-Nov-13 ND ND ND ND 1.33 28 23-Jan-1 4 ND ND ND ND 1.32 28.5 21-May-14 ND ND ND ND 1.22 26.3 13-Aug-l 4 ND ND ND ND 1.1 30 28-Oct-14 ND ND ND ND 1.23 30 11-Mar-1 S ND ND ND ND 1.33 30.6 I 0-Jun-15 ND ND ND ND 1.19 3 l. J 2-Sep-l S ND ND ND ND 0.916 30.4 21-Oct-l 5 ND ND ND ND 0.953 29.1 16-Mar-16 ND ND ND ND 1.84 31.5 25-May-l 6 ND ND ND ND 1.36 32.S 28-Jul-l 6 ND ND ND ND ] .41 30.6 20-Oct-16 ND ND ND ND 1.14 34.0 15-Mar-17 ND ND ND ND 1.19 31.3 15-Jun-17 ND ND ND ND 1.21 33.4 2-Aug-17 ND ND ND ND 1.1 ] 33.0 1 0-Oct-17 ND ND ND ND 1.04 30.9 14-Mar-18 ND ND ND ND 0.916 38.8 12-Jun-18 ND ND ND ND 0.948 34.4 29-Aug-18 ND ND ND ND 0.710 40.3 12-Dec-l 8 ND ND ND ND 0.766 35.2 16-Mar-19 ND ND ND ND 0.754 35.0 13-Jun-19 ND ND ND ND 0.713 36 .9 11-Sep-l 9 ND ND ND ND 0.610 35.8 14-Dec-J 9 ND ND ND ND 0.583 40.6 17-Mar-20 ND ND ND ND 0.572 38.2 l 1-Jun-20 ND ND ND ND 0.569 36.7 17-Sep-20 ND ND ND ND 0.507 36.5 4-Nov-20 ND ND ND ND 0.501 36.4 17-Mar-2 I ND ND ND ND 0.501 40.3 16-Jun-21 ND ND ND ND 0.451 37.9 15-Sep-21 ND ND ND ND 0.461 31.2 8-Dec-21 ND ND ND ND 0.339 40.3 16-Mar-22 ND ND ND ND 0.4 34.8 l 6-Jun-22 ND ND ND ND 0.41 35.5 13-Sep-22 ND ND ND ND 0.396 40.0 7-Dec-22 ND ND ND ND 0.4] 0 31.8 23-Mar-23 ND ND ND ND 0.391 35.9 J 5-Jun-23 ND ND ND ND 0.444 43 .1 13-Sep-23 ND ND ND ND 0.340 42.4 Jun-13 Sep-13 Dec-13 Mar-14 Jun-14 Sep-14 Dec-14 Mar-15 Jun-15 Sep-15 Dec-15 Mar-16 Jun-16 Sep-16 Dec-16 Mar-17 Jun-17 Sep-17 Dec-17 Mar-18 Jun-18 Sep-18 Dec-18 Mar-19 Jun-19 Sep-19 Dec-19 Mar-20 Jun-20 Sep-20 Dec-20 Mar-21 Jun-21 Sep-21 Dec-21 Mar-22 Jun-22 Sep-22 Dec-22 Mar-23 Jun-23 Sep-23 0 ; l •• - ! ! ' ; ' , ◄► j • -•► • ' j • 1 ' j ◄► ' ◄ ◄► 1 -► ; ' I ; ; . ' ; ; ; ; ◄ • ; 0 0 0 0 ' ' (ug/L) ~ ' (") ::,- 0 -, 0 -+, 0 -, 3 ::,- Q) en :::::, 0 ,-+ c-CD CD :::::, 0. CD ,-+ CD 0 ,-+ CD 0. :::::, -I ~ I (..,.) ~ ~ i I w -0 :::r 0 0 o' "'I 3 ~ C ct> UI Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-32 Tetrachloride (ug/1) fuf?/1) (ug/1) Chloride (ug/1) (mg/I) (mg/I) 14-Nov-13 ND ND ND ND 4.26 52.1 22-Jan-l4 ND ND ND ND 5.11 54.5 21-May-14 ND ND ND ND 5.63 54.9 13-Aug-14 ND ND ND ND 4.2 64 23-Oct-14 ND ND ND ND 2.14 62.6 11-Mar-15 ND ND ND ND 2.46 64.2 10-Jun-15 ND ND ND ND 1.21 62.7 2-Sep-1 5 ND ND ND ND 5.09 59.6 21-Oct-15 ND ND ND ND 1.19 55.1 l 5-Mar-16 ND ND ND ND 4.48 64.2 25-May-16 ND ND ND ND 3.16 71.8 28-Jul-1 6 ND ND ND ND 3.44 64.4 19-Oct-16 ND ND ND ND 2.87 66.0 14-Mar-17 ND ND ND ND 2.82 62.8 15-Jun-l 7 ND ND ND ND 2.37 53.5 2-Aug-1 7 ND ND ND ND 2.47 65.8 1 O-Oct-17 ND ND ND ND 2.54 58.3 14-Mar-18 ND ND ND ND 2.94 65.4 12-Jun-18 ND ND ND ND 2.51 59.2 29-Aug-18 ND ND ND ND 2.56 68.1 30-Nov-18 ND ND ND ND 2.50 57.5 16-Mar-19 ND ND ND ND 2.15 57.5 13-Jun-19 ND ND ND ND 2.18 60.1 1 l-Sep-19 ND ND ND ND 1.84 55.0 14-Dec-19 ND ND ND ND 1.89 64.7 17-Mar-20 ND ND ND ND 1.97 59.7 1 0-Jun-20 ND ND ND ND 2.19 57.0 17-Sep-20 ND ND ND ND 1.58 50.8 4-Nov-20 ND ND ND ND 1.74 53.7 17-Mar-21 ND ND ND ND 1.80 60.5 15-Jun-21 ND ND ND ND 2.31 40.4 15-Sep-21 ND ND ND ND 1.57 46.1 7-Dec-21 ND ND ND ND 1.34 55.0 16-Mar-22 ND ND ND ND 1.8 48.0 l 5-Jun-22 ND ND ND ND 1.2 49.4 13-Sep-22 ND ND ND ND 1.59 51.8 7-Dec-22 ND ND ND ND 1.68 48.4 23-Mar-23 ND ND ND ND 1.53 43.6 l 5-Jun-23 ND ND ND ND 1.77 49.3 13-Sep-23 ND ND ND ND 1.63 52.6 Nov-1 Feb-1 May-1 Aug-1 Nov-14 Feb-15 May-15 Aug-15 Nov-15 Feb-16 May-16 Aug-16 Nov-16 Feb-17 May-17 Aug-17 Nov-17 Feb-18 May-18 Aug-18 Nov-18 Feb-19 May-19 Aug-19 Nov-19 Feb-20 May-20 Aug-20 Nov-20 Feb-21 May-21 Aug-21 Nov-21 Feb-22 May-22 Aug-22 Nov-22 Feb-23 May-23 Aug-23 0 ' j ► • i -• - ◄► ◄► ◄► j ► ► ► •► j ► - ◄► • ► ► - ► ► - • ► • ► - • ► ► ► ► - ► ► - • ► •► - • ► • ► ► ► -► ► ► 0 0 0 0 ' ' ' (ug/L) ~ ~ ' () :::r 0 -. 0 -+, 0 -. 3 :::r m CJ) ::::, 0 ,.... O'" Cl) Cl) ::::, a. Cl) ,.... Cl) 0 ,.... Cl) a. ::::, --i ~ ~ I w N ~ ~ ~ i I w N 0 :::r 0 a o' 3 < SI) -C (I) en Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-33 Tetrachloride (ug/1) fu!!/1) (ug/1) Chloride (ug/1) (mg/I) (mg/I) 14-Nov-13 126 ND ND ND I .82 47.2 30-Jan-14 124 ND ND ND 2.56 43.5 22-May-14 121 ND ND ND 1.63 46.8 27-Aug-14 104 ND ND ND 1.5 43 29-Oct-14 124 ND ND ND 2.22 44.2 12-Mar-15 134 ND ND ND 1.9] 44.2 11-Jun-.15 127 ND ND ND l.62 46.4 3-Sep-15 123 ND ND ND 1.64 53.4 29-Oct-15 129 ND ND ND 1.92 44.5 ] 7-Mar-16 122 ND ND ND 2.13 46.2 8-Jun-16 96 ND ND ND 2.06 49.7 4-Aug-16 121 ND ND ND 2.32 48.5 26-Oct-16 109 ND ND ND 2.36 52.4 16-Mar-17 91 ND ND ND 2.11 49.0 20-Jun-17 ]03 ND ND ND 2.34 49.2 3-Aug-17 127 ND ND ND 2.04 46.9 11-Oct-l 7 97.1 ND ND ND 2.09 42.5 I 5-Mar-18 128 ND ND ND 1.94 49.2 I 3-Jun-18 88 ND ND ND 2.13 44.0 5-Sep-18 113 ND ND ND 1.82 50.0 13-Dec-18 141 ND ND ND 2.01 43.2 20-Mar-19 86.2 ND ND ND 2.00 47.2 ] 9-Jun-19 121 ND ND ND 2.16 43.4 12-Sep-19 101 ND ND ND 1.61 41.1 18-Dec-l 9 117 ND ND ND l.86 48.8 18-Mar-20 94 ND ND ND 2.44 45.3 12-Jun-20 90 ND ND ND 3.26 48.9 18-Sep-20 85 ND ND ND 3.58 51.0 l 1-Nov-20 80.6 ND ND ND 3.71 51.5 ] 8-Mar-21 64.9 ND ND ND 4.62 55.6 17-Jun~21 63.9 ND ND ND 6.25 54.7 22-Sep-21 60.2 ND ND ND 4.33 42.5 8-Dec-21 68.9 ND ND ND 4.65 53.8 23-Mar-22 53.1 ND ND ND 3.8 51.4 22-Jun-22 58 .7 ND ND ND 3.7 56.7 14-Sep-22 53.9 ND ND ND 3.90 42.2 9-Dec-22 50.5 ND ND ND 3.52 45.1 29-Mar-23 47.7 ND ND ND 3.93 52.6 21-Jun-23 51.8 ND ND ND 4.24 52.9 14-Sep-23 51.3 ND ND ND 4.19 52.0 0 Nov-13 Feb-14 May-14 Aug-14 Nov-14 Feb-15 May-15 Aug-15 Nov-15 - Feb-16 - May-16 Aug-16 Nov-16 Feb-17 May-17 Aug-17 Nov-17 - Feb-18 - May-18 Aug-18 Nov-18 - Feb-19 May-19 Aug-19 ., Nov-19 Feb-20 May-20 Aug-20 Nov-20 Feb-21 - May-21 Aug-21 Nov-21 • Feb-22 May-22 Aug-22 - Nov-22 - Feb-23 May-23 N 0 .,:,. 0 A~~3 . 0) 0 (ug/L) OJ 0 ...... 0 0 ...... N 0 ...... .,:,. 0 ...... 0) 0 i I w w 0 ::::r 0 a o' 3 ~ -C n, UI Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-34 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1) (uWI) - 14-Nov-13 NO ND ND ND 1.64 19.2 23-Jan-14 ND ND ND ND 1.94 20.4 21-May-14 ND ND ND ND 1.69 17.9 13-Aug-14 ND ND ND ND 1.1 18 28-Oct-14 ND ND ND ND 1.16 17.5 J l-Mar-15 ND ND ND ND l.21 17.7 I 0-Jun-15 ND ND ND ND 0.868 17.4 3-Sep-15 ND ND ND ND 0.458 15.1 21-Oct-l 5 ND ND ND ND 0.368 15.8 16-Mar-l 6 ND ND ND ND 0.925 17.3 26-May-16 ND ND ND ND 0.605 ]8 26-May-16 ND ND ND ND 0.605 18 3-Aug-16 ND ND ND ND 0.726 17.2 20-Oct-l 6 ND ND ND ND 0.612 19.0 15-Mar-17 ND ND ND ND 0.674 18.0 15-Jun-l 7 ND ND ND ND 0.727 15.7 2-Aug-17 ND ND ND ND 0.733 19.8 l 0-Oct-17 ND ND ND ND 0.774 18.5 14-Mar-18 ND ND ND ND 0.737 19.1 13-Jun-18 ND ND ND ND 0.877 19.5 29-Aug-J 8 ND ND ND ND 0.736 23.8 l 2-Dec-18 ND ND ND ND 0.889 18.5 16-Mar-19 ND ND ND ND 0.859 17.9 13-Jun-19 ND ND ND ND 0.994 20.] 1 l-Sep-19 ND ND ND ND 0.934 17.8 14-Dec-19 ND ND ND ND 1.07 21.4 17-Mar-20 ND ND ND ND 1.09 20.1 ] l-Jun-20 ND ND ND ND 1.24 20.9 17-Sep-20 ND ND ND ND 0.978 19.0 4-Nov-20 ND ND ND ND 1.04 18.7 17-Mar-21 ND ND ND ND 10.9 19.3 16-Jun-21 ND ND ND ND 1.08 17.8 15-Sep-2 l ND ND ND ND 1.1 15.0 8-Dec-2] ND ND ND ND 1.02 19.6 16-Mar-22 ND ND ND ND 1.0 17.3 16-Jun-22 ND ND ND ND 1.0 19.5 14-Sep-22 1.2 ND ND ND 0.788 18.8 8-Dec-22 ND ND ND ND 1.16 17.0 29-Mar-23 1.2 ND ND ND 1.07 20.7 20-Jun-23 1.2 ND ND ND 1.09 21 .2 14-Sep-23 ND ND ND ND 1.27 20.6 Nov-13 Feb-14 May-14 Aug-14 Nov-14 Feb-15 May-15 Aug-15 Nov-15 Feb-16 May-16 Aug-16 Nov-16 Feb-17 May-17 Aug-17 Nov-17 Feb-18 May-18 Aug-18 Nov-18 Feb-19 May-19 Aug-19 Nov-19 Feb-20 May-20 Aug-20 Nov-20 Feb-21 May-21 Aug-21 Nov-21 Feb-22 May-22 Aug-22 Nov-22 Feb-23 May-23 Aug-23 0 C> . • ► ; . • ·• -·• ! • .. ; . ! • '. - •• J •• 0 .. 0 - - 0 ·• ·• -·• -. ; -. . ·• ·• '. - 0 i-v 0 :i:,.. I !==> O> (ug/L) !==> CX) I _.. _.. C> N _.. :i:,.. i I w ~ 0 :r 0 a o' 3 ~ C: C1) t/1 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-35 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (uWI) (u2fl) - 27-Aug-14 ND ND ND ND 0.2 34 28-Oct-14 ND ND ND ND 0.35 I 34.1 11-Mar-15 ND ND ND ND 0.436 34.9 1 0-Jun-15 ND ND ND ND 0.452 35.2 3-Sep-1 5 ND ND ND ND 0.304 35.9 28-Oct-15 ND ND ND ND 0.419 33.4 16-Mar-l 6 ND ND ND ND 0.521 35.4 26-May-16 ND ND ND ND 0.631 35.4 3-Aug-16 ND ND ND ND 0.723 34.8 20-Oct-16 ND ND ND ND 0.626 37.1 15-Mar-17 ND ND ND ND 0.673 33.7 15-Jun-l 7 ND ND ND ND 0.699 34.8 2-Aug-17 ND ND ND ND 0.670 36.3 1 0-Oct-17 ND ND ND ND 0.651 31.7 14-Mar-l 8 ND ND ND ND 0.740 37.4 13-J un-18 ND ND ND ND 0.662 33.7 30-Aug-18 ND ND ND ND 0.527 39.3 12-Dec-18 ND ND ND ND 0.559 43 .0 16-Mar-19 ND ND ND ND 0.574 33 .5 13-Jun-19 ND ND ND ND 0.670 35.5 l l-Sep-19 ND ND ND ND 0.525 31.7 14-Dec-19 ND ND ND ND 0.524 37.4 17-Mar-20 ND ND ND ND 0.595 34.5 l l-Juo-20 ND ND ND ND 0.699 34.0 l 7-Sep-20 ND ND ND ND 0.760 32.2 4-Nov-20 ND ND ND ND 0.756 30.4 17-Mar-21 ND ND ND ND 0.991 35.6 16-Jun-2 l ND ND ND ND 1.01 34.1 15-Sep-21 ND ND ND ND 1.20 27.5 8-Dec-21 ND ND ND ND 1.23 34.3 22-Mar-22 ND ND ND ND 1.5 27.8 16-Jun-22 ND ND ND ND 1.6 31.2 14-Sep-22 ND ND ND ND 1.61 34.4 7-Dec-22 ND ND ND ND 1.79 27.4 29-Mar-23 ND ND ND ND 1.74 33.8 20-Jun-23 ND ND ND ND 1.91 29.8 13-Sep-23 1.4 ND ND ND 2.00 32.4 Aug-14 Nov-14 Feb-15 May-15 Aug-15 Nov-15 Feb-16 May-16 Aug-16 Nov-16 Feb-17 May-17 Aug-17 Nov-17 Feb-18 May-18 Aug-18 Nov-18 Feb-19 May-19 Aug-19 Nov-19 Feb-20 May-20 Aug-20 Nov-20 Feb-21 May-21 Aug-21 Nov-21 Feb-22 May-22 Aug-22 Nov-22 Feb-23 May-23 Aug-23 0 ! . ' ' ·• . !. .. :• • • . • ► ◄• . ► . •► . ◄► •• . ~ • ◄ ◄ . . ' . • ..___ (ug/L) 0 0 .... .... .... ' CD -.r- '--d --i 0 --t-\ 0 ; ~ l '1 a rt [ l or 'r: } t ~ I .... N . i I w en 0 ::::r 0 a o' .. 3 ~ C (I) tn Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-36 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (u2'1) (ufZ/1) - 27-Aug-14 ND ND ND ND ND 65 23-Oct-14 ND ND ND ND ND 67.3 11-Mar-l5 ND ND ND ND ND 67.2 I 0-Jun-15 ND ND ND ND ND 69.3 3-Sep-15 ND ND ND ND ND 76.4 21-Oct-l 5 ND ND ND ND ND 64.5 16-Mar-16 ND ND ND ND ND 67.1 25-May-16 ND ND ND ND ND 72.3 27-Jul-16 ND ND ND ND ND 69.4 20-Oct-16 ND ND ND ND ND 73.8 ] 5-Mar-17 ND ND ND ND ND 60.2 15-Jun-17 ND ND ND ND ND 71.3 2-Aug-1 7 ND ND ND ND ND 69.6 I 0-Oct-17 ND ND ND ND 0.104 62 .9 14-Mar-l 8 ND ND ND ND ND 73 .8 12-Jun-l 8 ND ND ND ND ND 64 .3 29-Aug-18 ND ND ND ND ND 76.4 12-Dec-18 ND ND ND ND 0.123 65.8 16-Mar-19 ND ND ND ND 0.116 65 .0 13-Jun-l9 ND ND ND ND ND 71.5 l 1-Sep-19 ND ND ND ND ND 69.6 14-Dec-19 ND ND ND ND ND 73 .7 17-Mar-20 ND ND ND ND ND 69.1 l 1-Jun-20 ND ND ND ND ND 67.0 l 7-Sep-20 ND ND ND ND ND 66.0 4-Nov-20 ND ND ND ND ND 64.0 17-Mar-21 ND ND ND ND ND 72.5 16-Jun-21 ND ND ND ND ND 68.7 I 5-Sep-21 ND ND ND ND ND 63.l 8-Dec-21 ND ND ND ND ND 69.9 16-Mar-22 ND ND ND ND 0.1 61.2 l5-Jun-22 ND ND ND ND ND 68.8 13-Sep-22 ND ND ND ND ND 69.3 7-Dec-22 ND ND ND ND 0.100 59.7 23-Mar-23 ND ND ND ND 0.102 60.7 15-Jun-23 ND ND ND ND ND 68.9 13-Sep-23 ND ND ND ND 0.140 67.3 Aug-14 Nov-14 Feb-15 May-15 Aug-15 Nov-15 Feb-16 May-16 Aug-16 Nov-16 Feb-17 May-17 Aug-17 Nov-17 Feb-18 May-18 Aug-18 Nov-18 Feb-19 May-19 Aug-19 Nov-19 Feb-20 May-20 Aug-20 Nov-20 Feb-21 May-21 Aug-21 Nov-21 Feb-22 May-22 Aug-22 Nov-22 Feb-23 May-23 Aug-23 0 • • • -• • • • ► ► • -• ~► ◄► -• • ◄► ◄• • ◄ ◄► ◄• ◄► -► ◄~ ◄ ◄ ◄ ◄ ◄ ◄ ◄ ◄ ◄ ◄ (ug/L) 0 0 0 0 .... .... () ::,- 0 "'"'I 0 o' "'"'I 3 ::,- ~ CJ) :::J 0 ,..... 0- CD CD :::J a. CD ,..... CD a ,..... CD a. o • --i ~ I w (j) .... .... ' . i I w Q) 0 :::r 0 .. 0 o' .. 3 ~ C CD en Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-37 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue/1)' t usvl) 8-Jun-15 30200 18 16 2 35 345 31-Aug-1 5 19100 17 14 1.04 32 374 19-Oct-15 19500 13 9 1.17 35 399 9-Mar-16 17500 16 4 1.34 28.4 332 23-May-16 16200 14 ND 1.17 27.9 389 25-Jul-l 6 15900 17 ND ND 33.4 294 12-Oct-l 6 16400 16 ND ND 26.1 304 8-Mar-17 18000 15 ND ND 32.3 305 13-Jun-17 15800 16 ND ND 31.2 281 26-Jul-l 7 15000 15. l ND ND 30.5 277 1 l-Oct-17 15500 12.6 2.47 ND 30.6 255 12-Mar-18 12900 12 .8 1.14 ND 30.0 263 8-Jun-18 14400 10.6 ND ND 28.6 275 22-Aug-18 14100 12.1 6.20 ND 25.4 387 28-Nov-18 15200 ] 1.3 19.8 ND 27.3 264 8-Mar-19 13300 13 .8 l.2 ND 30.1 209 5-Jun-19 16200 14.6 ND ND 31.2 250 4-Sep-19 11900 10 .7 1.90 ND 25.8 228 10-Dec-19 13100 8.8 3.12 ND 25.5 220 19-Feb-20 12000 8.5 12.30 ND 28.3 236 27-May-20 11700 11.8 1.44 ND 28.3 321 4-Sep-20 13800 9.6 ND ND 29.5 273 28-Oct-20 10300 6.5 29.40 ND 28.7 254 23-Feb-21 9380 ND ND ND 26.9 242 9-Jun-21 13000 8.46 1.98 ND 26.6 176 24-Aug-21 10200 7.65 ND ND 25.8 220 I-Dec-21 14800 11.50 6.70 5.05 31.3 410 9-Mar-22 13700 12.20 ND ND 29.8 414 8-Jun-22 46800 8.2 12.0 ND 28 267 30-Aug-22 11600 5.4 2.4 ND 26.6 243 30-Nov.-22 9640 5.7 ND ND 30.9 578 7-Mar-2-3 8010 ND ND ND 19.1 209 13-Jun-23 8160 1.6 5.7 ND 35.9 329 9-Aug-23 9620 3.2 ND ND 25.1 252 0 Jun-15 Sep-15 •• Oec-15 Mar-16 • Jun-16 Sep-16 Oec-16 Mar-17 Jun-17 Sep-17 Oec-17 Mar-18 Jun-18 Sep-18 • Oec-18 Mar-19 Jun-19 Sep-19 Dec-19 Mar-20 Jun-20 Sep-20 Oec-20 Mar-21 Jun-21 Sep-21 Oec-21 Mar-22 Jun-22 Sep-22 Oec-22 Mar-23 Jun-23 CJ1 0 0 0 ...... 0 0 0 0 ...... CJ1 0 0 0 ~ (u~) 0 0 0 0 0 0 c.,., 0 0 0 0 c.,., CJ1 0 0 0 .i,.. 0 0 0 0 .i,.. CJ1 0 0 0 CJ1 0 0 0 0 i I w ..... 0 :r 0 .. 0 o' .. 3 < I» -C: C, C/1 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-38 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue1)) (uell) 10-Nov-l 6 ND ND ND ND 11.2 40.0 J 5-Mar-17 ND ND ND ND 10.6 35.7 15-Jun-l 7 ND ND ND ND 10.8 36.2 2-Aug-1 7 ND ND ND ND I 0.1 36.9 10-Oct-17 ND ND ND ND 10.3 31.3 14-Mar-18 ND ND ND ND 9.34 36.5 13-Jun-l 8 ND ND ND ND 9.48 33.1 30-Aug-18 ND ND ND ND 7.77 39.2 12-Dec-l 8 ND ND ND ND 8.48 35 .0 16-Mar-19 ND ND ND ND 8.96 33 .5 13-Jun-19 ND ND ND ND 8.53 33.7 IJ-Sep-19 ND ND ND ND 7.61 31.6 14-Dec-19 ND ND ND ND 7.51 36.0 17-Mar-20 ND ND ND ND 8.11 33.4 l l-Jun-20 ND ND ND ND 9.00 34.9 18-Sep-20 ND ND ND ND 7.35 34.7 4-Nov-20 ND ND ND ND 7.72 35.1 18-Mar-21 ND ND ND ND 8.24 37.2 16-Jun-2 I ND ND ND ND 9.59 37.7 l 5-Sep-21 ND ND ND ND 8.04 32.l 8-Dec-21 ND ND ND ND 8.02 35.8 22-Mar-22 ND ND ND ND 7.7 32.7 I 6-Jun-22 ND ND ND ND 7.9 37.3 14-Sep-22 ND ND ND ND 7.57 32.9 7-Dec-22 ND ND ND ND 8.90 36.4 29-Mar-23 ND ND ND ND 8.78 37.2 20-Jun-23 ND ND ND ND 8.20 36.3 13-Sep-23 ND ND ND ND 8.18 41.1 Nov-16 Feb-17 May-17 Aug-17 Nov-17 Feb-18 May-18 Aug-18 Nov-18 Feb-19 May-19 Aug-19 Nov-19 Feb-20 May-20 Aug-20 Nov-20 Feb-21 May-21 Aug-21 Nov-21 Feb-22 May-22 Aug-22 Nov-22 Feb-23 May-23 Aug-23 0 ◄ • .. !' ' - -• ' . . '. '. -• ◄ • . • • • ◄• - ◄• ·• • ·• -• •• . • • • • • • . 0 0 0 ' ' (ug/L) 0 ..... ..... ..... ..... ..... ..... i I w CC) 0 :::T 0 a o' ... 3 ~ 2 CD u, Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-39 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) fue/1) (ue/1} 10-Nov-1 6 2800 ND ND ND 20.7 68.9 8-Mar-17 6460 8.15 ND 1.35 6.44 130 13-Jun-17 5560 8.20 ND 1.31 6.25 120 26-Jul-17 10000 14.40 ND I.SO 7.74 132 1 l-Oct-1 7 552 ND ND ND 2.65 73.5 12-Mar-18 2870 3.10 ND ND 3.33 118 8-Jun-18 7160 7.94 ND ND 4.84 107 22-Aug-l 8 8180 12.50 2.33 ND 6.05 110 28-Nov-l 8 6520 6.08 ND ND 6.39 123 8-Mar-19 885 1.20 ND ND 2.08 49.0 5-Jun-19 8640 11 .60 ND ND 8.45 114.0 4-Sep-19 4240 5.71 ND ND 1.75 48 .2 I 0-Dec-1 9 1650 l.14 ND ND 0.948 74.7 l 9-Feb-20 812 ND ND ND 0.792 76.5 27-May-20 5870 7.56 ND ND 5.01 88 .5 4-Sep-20 5960 8.18 ND ND 2.69 63.2 28-Oct-20 648 ND 1.19 ND 7.03 83.2 23-Feb-21 2970 ND ND ND 2.12 53.0 9-Jun-21 2490 2.92 ND ND 12.0 123.0 24-Aug-21 858 ND ND ND 2.70 78.7 l-Dec-21 776 ND ND ND 2.33 82.4 9-Mar-22 724 ND ND ND 2.9 75.2 8-Jun-22 982 ND '1.4 ND 9.0 76.8 30-Aug-22 843 ND ND ND 3.72 85.2 30-Nov-22 1720 1.20 ND ND 7.86 80.6 7-Mar-23 1850 ND ND ND 1.37 38.7 13-Jun-23 3330 1.8 3.1 ND 7.96 75.4 9-Aug-23 3440 2.8 ND ND 5.01 95.5 0 Nov-16 -' Feb-17 May-17 Aug-17 Nov-17 Feb-18 May-18 Aug-18 Nov-18 Feb-19 May-19 Aug-19 Nov-19 Feb-20 May-20 Aug-20 Nov-20 Feb-21 May-21 Aug-21 Nov-21 Feb-22 May-22 Aug-22 Nov-22 Feb-23 May-23 - N 0 0 0 ~ 0 0 0 (ug/L) O> 0 0 0 00 0 0 0 ...... 0 0 0 0 ...... N 0 0 0 i I w co C') ::T 0 a o' .. 3 ~ C CD tn Chloroform Carbon Chloromethane Metbyleoe Nitrate Chloride TW4-40 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) <-u~/1) fuJ!/1) 21-Mar-18 248 ND ND ND 3.08 35.7 14-Jun-l 8 131 ND ND ND 3.33 31.6 5-Sep-18 116 ND ND ND 3.22 37.6 13-Dec-18 118 ND ND ND 3.54 29.9 20-Mar-19 111 ND ND ND 3.18 30.9 5-Jun-19 263 ND ND ND 3.55 35.6 4-Sep-19 380 ND ND ND 3.39 35.9 1 0-Dec-19 314 ND ND ND 2.89 36.7 l 9-Feb-20 364 ND ND ND 2.98 38.5 27-May-20 367 ND ND ND 2.91 36.5 4-Sep-20 333 ND ND ND 2.88 34.2 28-Oct-20 264 ND ND ND 2.58 34.6 23-Feb-21 436 ND 3.51 ND 2.43 36.0 9-Jun-21 343 ND ND ND 3.77 27.5 24-Aug-21 301 ND 1.32 ND 1.50 31.8 1-Dec-21 286 ND ND ND 2.60 38.4 9-Mar-22 238 ND ND ND 2.5 38.4 8-Jun-22 323 ND ND ND 1.9 36.6 30-Aug-22 302 ND ND ND 2.22 39.3 30-Nov-22 298 ND ND ND 2.24 44.8 7-Mar-23 259 ND ND ND 1.28 23.5 13-Jun-23 220 ND 1.3 ND 2.04 37.6 9-Aug-23 220 ND ND ND 1.88 39.7 II) Cl) :::::, -~ E .. a e .2 s:. 0 0 ,. ~ -oz-unr-si ________________________ ____, __ ___,_H-das-zz 0 0 IO 0 IO -.:I" 0 0 -.:I" 0 IO C") 0 0 C") 0 IO N (716n) 0 0 N 0 I.O ..... 0 0 ..... 0 IO 0 Chloroform Carbon Chloromethane Methylene Chloride TW4-41 (ug/1) Tetrachloride (ug/1) Chloride Nitrate (mg/I) (mg/I) (ue/1) (uell) 9-May-18 1400 ND ND ND 6.54 42.8 22-Aug-18 1390 ND ND ND 6.13 45.5 28-Nov-l 8 1320 ND ND ND 6.02 41.4 8-Mar-19 1220 ND ND ND 6.71 39.1 5-J un-19 1320 ND ND ND 6.00 38.9 4-Sep-19 I 190 ND ND ND 6.22 39.4 1 0-Dec-19 1410 ND ND ND 6.1 1 42.1 19-Feb-20 1200 ND ND ND 6.12 44.4 27-May-20 1220 ND ND ND 6.78 41.7 4-Sep-20 1110 ND ND ND 6.69 40.2 28-Oct-20 1020 ND ND ND 6.25 39.7 23-Feb-21 1170 ND ND ND 6.41 40.6 9-Jun-21 1130 ND ND ND 7.45 39.3 24-Aug-21 1100 ND ND ND 3.77 37.l t-Dec-21 1030 ND ND ND 6.72 43.2 9-Mar-22 1030 ND ND ND 6.2 37.3 8-Jun-22 1010 ND ND ND 6.0 41.1 30-Aug-22 1060 ND ND ND 5.92 41.9 30-Nov-22 1050 ND ND ND 6.00 38.0 7-Mar-23 985 ND ND ND 4.30 34.4 13-Jun-23 1040 ND 1.8 ND 6.27 40.3 9-Aug-23 1050 ND ND ND 5.59 41.0 Cl) Cl) ;j ~ E ... '2 0 ... .S2 .c 0 T"' '1' ~ 0 0 co ..... 0 0 V ..... 0 0 N ..... 0 0 0 ..... 0 0 CX) 0 0 <D 0 0 v 0 0 N 0 ~z-po-~£ oz-unr-e~ Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-42 (ug/1) Tetrachloride (ug/1) Chloride (mg/I) (mg/I) (ue:/,l) (m~:/1) 19-Jun-] 9 ND ND ND ND 2.57 23.3 11-Sep-l 9 ND ND ND ND 2.75 20.6 12-Dec-19 ND ND ND ND 2.82 22.6 17-Mar-20 ND ND ND ND 2.88 23.2 10-Jun-20 ND ND ND ND 3.23 23.1 17-Sep-20 ND ND ND ND 3.65 23.5 4-Nov-20 ND ND ND ND 2.77 22.4 I 7-Mar-21 ND ND ND ND 3.15 24.2 15-Jun-21 ND ND ND ND 3.57 24.6 15-Sep-21 ND ND ND ND 3.26 16.6 7-Dec-21 ND ND ND ND 2.02 24.2 15-Mar-22 ND ND ND ND 2.5 21.5 15-Jun-22 ND ND ND ND 3.3 24.0 30-Aug-22 ND ND ND ND 3.03 22 .8 7-Dec-22 ND ND ND ND 3.30 15.6 22-Mar-23 ND ND ND ND 2.78 21.1 15-Jun-23 ND ND ND ND 3.14 20.9 13-Sep-23 ND ND ND ND 3.33 20.4 0 27-Oct-18 15-May-19 ◄► ◄ 1-Dec-19 ◄ ◄ 18-Jun-20 J ◄► ◄ 4-Jan-21 ◄► 23-Jul-21 8-Feb-22 - '► 27-Aug-22 '~ '► 15-Mar-23 ► ► 0 1-Oct-23 - 18-Apr-24 0 0 0 0 . ' (ug/L) _. ..... i ~ N 0 ~ 0 a o' ... 3 ~ C CD t/1 -Carbon Methylene Chloroform C)llo.rometha,,o.e Q.bJoride TW4-1'l (ug/~) Tetracltlo.rude (ugt'(IJ Cltloriile Nitrate (mg/I) {mg/I) (ue/1) {uf!LI) 9-Dec-21 ND ND ND ND 0.118 40.6 16-Mar-22 ND ND ND ND 0.4 39.2 16-Jun-22 ND ND ND ND 0.24 41.8 13-Sep-22 ND ND ND ND 0.383 43.1 7-Dec-22 ND ND ND ND 0.383 40.7 23-Mar-23 ND ND ND ND 0.384 28.0 l 5-Jun-23 ND ND ND ND 0.432 41.7 13-Sep-23 ND ND ND ND 0.410 35.2 Cl) G) ::::s ~ E .. .e e .2 J:! 0 C") ,. ! . T"" T"" T"" 0 0 0 0 £z-das-gz t ◄► ◄ .~ ◄ zz-6nv-vz ' ' -zz-qa:1-s 0 TabL Contour Map Based Chloroform Plume Mass Calculations and Data over Time TABLE L.1 Chloroform Plume Residual Mass Since Third Quarter 2015 Residual Plume Mass Quarter (lbs) Q315 1712 Q415 1869 Q116 1946 Q216 2261 0316 1718 Q416 1711 0117 1271 Q217 1372 Q317 1948 0417 884 01 18 1271 0218 1271 Q318 1208 0418 1107 0119 833 0219 1408 0319 1050 0419 770 01 20 1106 0220 1056 0320 909 0420 715 01 21 1273 02 21 784 03 21 933 04 21 981 Q1 22 711 02 22 1124 0322 850 0422 893 01 23 444 02 23 928 0323 663 Notes: lbs= pounds https://hgcinc.sharepoint.com/VOL4/718000/nov23/chloroform/masscalc/FL.1_resid_chl_mass_3Q23.xlsx: Table L.1 CHLOROFORM RESIDUAL MASS ESTIMATE DETAILS: Chloroform Data File: CHL_Surferlnput_3Q_23.xls Gridding details: 1) kriging parameters: SURFER™ default parameters (point kriging, linear variogram, slope= 1, no anisotropy [anisotropy= 1], no search constraints [all data used]) 2) minx, max x (UTME[m]): 631900 633043 3) min y, may y (UTMN[m]): 4154240 4155550.64 4) grid spacing in x, y (m): 15.24, 15.24 5) artificial or pseudo-data: none 6) Q2, 2023 (previous quarter) data used at wells: MW-1 , MW-2, MW-3A MW-5, MW-12 MW-15 MW-17 throughMW-20 MW-22, MW-23 MW-27 through MW-29 MW-35 MW-37 (all non-detect). Chloroform residual mass estimate kriged grid ftles (ascii format): Ucm3Q23wl.grd: third quarter, 2023 Water Level Grid (ft amsl) Ucm3Q23bb.grd: third quarter, 2023 Aquifer Base Grid (ft amsl) Ucm3Q23sat.grd: third quarter, 2023 Saturated Thickness Grid (ft) Ucm3Q23logchl.grd: third quarter, 2023 log of chloroform grid (log ofug/L) Ucm3Q23chl.grd: third quarter, 2023 Chloroform Concentration Grid (ug/L) Ucm3Q23ge70.grd: third quarter, 2023 Chloroform Concentration GE 70 Grid (ug/L) Ucm3Q23volm3.grd: third quarter, 2023 Groundwater Volume Grid (m3) Ucm3Q23masslb.grd: third quarter, 2023 Chloroform Plume Mass Grid (lb) Chloroform residual mass estimate kriged grid XYZ files (ascii format): Ucm3Q23wl.dat: third quarter, 2023 Water Level Grid XYZ file (ft amsl) Ucm3Q23bb.dat: third quarter, 2023 top of Aquifer Base Grid XYZ file (ft amsl) Ucm3Q23sat.dat: third quarter, 2023 Saturated Thickness Grid XYZ file (ft) Ucm3Q23logchl.dat: third quarter, 2023 log of chloroform grid XYZ file (log ofug/L) Ucm3Q23chl.dat: third quarter, 2023 Chloroform Concentration Grid XYZ file (ug/L) Ucm3Q23ge70.dat: third quarter, 2023 Chloroform Concentration GE 70 Grid (ug/L) XYZ file Ucm3Q23volm3.dat: third quarter, 2023 Groundwater Volume Grid XYZ file (m3) Ucm3Q23masslb.dat: third quarter, 2023 Chloroform Plume Mass Grid XYZ file (lb) Chloroform plume mas estimate file: Ucm3Q23result.xls @. QI .... 111 E • .. "' w "' "' 111 ~ E ... .E 0 ... 0 ::i: u iii ~ "0 ·.;; QI a: 2400 2200 2000 1800 1600 1400 1200 1000 800 600 400 200 0 ~~~~~~~~~~~#~#~~~~~~~~~~~~~~~~~~~ ~~~~o)-~o.1-~w~~~().'\-~o.1-~~~~~())"~o.1-~~~~~())"~o.1-~~~~~())"~o.1-~~~~~())"~o.1-~~~~~())"~o.1-~~~~~())"~o.1-~~~ ......_ mass estimate --linear (mass estimate) HYDRO GEO CHEM,INC. TIME SERIES OF RESIDUAL CHLOROFORM MASS ESTIMATES Approved I Dale SJS Author !Dale SJS FIie Name !Figure MH1l.11tfl!Nlfflu.:ah L.1 https://hgcinc.sharepoint.comNOL4/718000/nov23/chloroform/masscalc/FL.1_resid_chl_mass_3Q23.xlsx: FL. 1 Resid CHL Mass TabM CSV Transmittal Letter Kathy Weinel From: Sent: To: Cc: Subject: Attachments: Dear Mr. Goble, Kathy Weinel Wednesday, November 15, 2023 11 :03 AM Phillip Goble 'Dean Henderson'; David Frydenlund; Dawn Kolkman; Scott Bakken; Garrin Palmer; Logan Shumway; Jordan Christine App; 'clea hy@utah.gov' Transmittal of CSV Files White Mesa Mill 2023 Q3 Chloroform Monitoring 23H1109 FINAL EnergyFuels-Client 24 Aug 23 1101 .csv; 2311200 FINAL EnergyFuels- Client 28 Sep 23 1232.csv; 2312285 FINAL EnergyFuels-Client 11 Oct 23 1219.csv; Q3 2023 Chloroform Field Data.csv; Q3 2023 DTW All Programs.csv Attached to this e-mail is an electronic copy of laboratory results for chloroform monitoring conducted at the White Mesa Mill during t he third quarter of 2023, in Comma Separated Value (CSV) format. Other electronic files required by the Corrective Action Plan are included on the CDs included with the hard copy reports. Please contact me at 303-389-4131 if you have any questions on this transmittal. Yours Truly, Kathy Weinel eF Energy Fuels Resources (USA) Inc. Kathy Weinel Director, Regulatory Compliance t:303.389.4134 I c: I f:303.389.4125 KWelnel@energyfuels.com 225 Union Blvd., Suite 600 Lakewood, CO 80228 http://www.energyfuels.com This e-mail is intended ror the exclusive use of person(s) mentioned as the recipient(s). This message and any attached files with it are confidential and may contain privileged or proprietary information. If you are not the intended recipient(s) please delete this message and notify the sender. You may not use, distribute print or copy this message if you are not the Intended recipient(s). 1 TabN Exceedance Notices for the Reporting Period This attachment has been deliberately left blank.