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HomeMy WebLinkAboutDRC-2024-002269 - 0901a068812df68f~, 1:-~-J~NERGYFUELS VIA Expedited Delivery January 2, 2024 Mr. Doug Hansen Div of Waste Management and Radiation Control JAN O 5 2024 Director of Division of Waste Management and Radiation Control Utah Department of Environmental Quality 195 North 1950 West P.O. Box 144880 Salt Lake City, UT 84116 Energy Fuels Resources (USA) Inc. 225 Union Blvd. Suite 600 Lakewood, CO, US, 80228 303 974 2140 www.encrgyfuels.com Re: Transmittal of Annual Seeps and Springs Monitoring Report Groundwater Quality Discharge Permit UGW370004 White Mesa Uranium Mill Dear Mr. Hansen: Enclosed are two copies of the White Mesa Uranium Mill Annual Seeps and Springs Monitoring Report for 2023 as required by the Groundwater Quality Discharge Permit UGW370004, as well as two CDs that contain a word searchable electronic copy of this report. If you should have any questions regarding this report please contact me at 303-389-4134. Yours very truly, ENERGY FUELS RESOURCES (USA) INC. Kathy Weinel Director, Regulatory Compliance CC: David Frydenlund Scott Bakken Logan Shumway Garrin Palmer Jordan App John Uhrie DRC-2024-002269 VIA Expedited Delivery January 2, 2024 Mr. Doug Hansen Director of Division of Waste Management and Radiation Control Utah Department of Environmental Quality 195 North 1950 West P.O. Box 144880 Salt Lake City, UT 84116 Energy Fuels Resources (USA) Inc. 225 Union Blvd. Suite 600 Lakewood, CO, US, 80228 3039742140 www .energyfuels.com Re: Transmittal of Annual Seeps and Springs Monitoring Report Groundwater Quality Discharge Permit UGW370004 White Mesa Uranium Mill Dear Mr. Hansen: Enclosed are two copies of the White Mesa Uranium Mill Annual Seeps and Springs Monitoring Report for 2023 as required by the Groundwater Quality Discharge Permit UGW370004, as well as two CDs that contain a word searchable electronic copy of this report. If you should have any questions regarding this report please contact me at 303-389-4134. Yours very truly, ENERGY FUELS RESOURCES {USA) INC. Kathy Weinel Director, Regulatory Compliance CC: David Frydenlund Scott Bakken Logan Shumway Garrin Palmer Jordan App John Uhrie White Mesa Uranium Mill 2023 Annual Seeps and Springs Sampling Report State of Utah Groundwater Discharge Permit No. UGW370004 Prepared by: Zi. Bt£,,--- ....... ' ) / ENERGYFUELS Energy Fuels Resources (USA) Inc. 225 Union Blvd., Suite 600 Lakewood, CO 80228 December 20, 2023 Contents 1.0 INTRODUCTION ................................................................................................................................... I 2.0 SAMPLING EVENTS ............................................................................................................................ 1 2.2 2023 Sampling .................................................................................................................................... 1 2.3 Repeat Visits to Dry Seeps and Springs .............................................................................................. 1 2.4 Sampling Procedures ........................................................................................................................... I 2.5 Field Data ............................................................................................................................................ 2 2.6 Field QC Samples ............................................................................................................................... 3 3.0 SEEPS AND SPRINGS SURVEY AND CONTOUR MAP .................................................................. 3 4.0 QUALITY ASSURANCE AND QUALITY CONTROL ..................................................................... .4 4.1 Laboratory Results .............................................................................................................................. 4 4.2 DATA EVALUATION ....................................................................................................................... 4 4.3 Adherence to Sampling Plan and Permit Requirements .................................................................... .4 4.4 Analyte Completeness Review ............................................................................................................ 5 4.5 Data Validation ................................................................................................................................... 5 4.5.1 Field Data QA/QC Evaluation ..................................................................................................... 5 4.5 .2 Holding Time Evaluation ............................................................................................................. 5 4.5 .3 Laboratory Receipt Temperature Check ...................................................................................... 5 4.5 .4 Analytical Method Check ............................................................................................................. 5 4.5.5 Reporting Limit Evaluation .......................................................................................................... 6 4.5.6 Trip Blank Evaluation .................................................................................................................. 6 4.5.7 QA/QC Evaluation for Sample Duplicates .................................................................................. 6 4.5.8 Radiologies Counting Error ......................................................................................................... 7 4.5.9 Laboratory Matrix QC Evaluation ............................................................................................... 7 5.0 EVALUATION OF ANALYTICAL DATA .......................................................................................... 9 5 .1 Evaluation of Analytical Results ......................................................................................................... 9 5.1.1 Ruin Spring .................................................................................................................................. 9 5.1.2 Cottonwood Spring ............... : .................................................................................................... 10 5.1.3 Westwater Seep .......................................................................................................................... 10 5 .1.4 Entrance Spring .......................................................................................................................... 10 6.0 CORRECTIVE ACTION REPORT ..................................................................................................... 11 6.1 Assessment of Corrective Actions from Previous Period ................................................................. 11 7.0 ELECTRONIC DATA FILES AND FORMAT ................................................................................... 11 8.0 SIGNATURE AND CERTIFICATION ............................................................................................... 12 Table 1 Table 2A Table 2B Table 2C Table 2D LIST OF TABLES Summary of Seeps and Springs Sampling Detected Constituents and Comparison to Historic Values and Mill Site Monitoring Wells -Ruin Spring Detected Constituents and Comparison to Historic Values and Mill Site Monitoring Wells-Cottonwood Seep Detected Constituents and Comparison to Historic Values and Mill Site Monitoring Wells-Westwater Seep Detected Constituents and Comparison to Historic Values and Mill Site Monitoring Wells -Entrance Spring INDEX OF TABS Tab A Seeps and Springs Field Data Sheets and Photographic Documentation Tab B Field Parameter Measurement Data Tab C Survey Data and Contour Map Tab D Analytical Laboratory Data Tab E Quality Assurance and Data Validation Tables E-1 Holding Time Evaluation E-2 Laboratory Receipt Temperature Check E-3 Analytical Method Check E-4 Reporting Limit Evaluation E-5 Trip Blank Evaluation E-6 QNQC Evaluation for Sample Duplicates E-7 Radiologies Counting Error E-8 Laboratory Matrix QC Evaluation Tab F Comma Separated Values Transmittal 11 AWAL DR DWMRC EFRI GEL GWQS LCS Mill MS MSD Permit QA QAP QC RPD TDS voes ACRONYM LIST American West Analytical Laboratory Dry Ridge Piezometers Utah Division of Waste Management and Radiation Control Energy Fuels Resources (USA) Inc. GEL Laboratories, Inc. Groundwater Quality Standard Laboratory Control Spike White Mesa Mill Matrix Spike Matrix Spike Duplicate State of Utah Groundwater Discharge Permit No. UGW370004 Quality Assurance Groundwater Monitoring Quality Assurance Plan Quality Control Relative Percent Difference Total Dissolved Solids Volatile Organic Compounds 111 ANNUAL SEEPS AND SPRINGS SAMPLING REPORT 1.0 INTRODUCTION This is the 2023 Annual Seeps and Springs Sampling Report for the Energy Fuels Resources (USA) Inc. ("EFRI") White Mesa Mill (the "Mill"), as required under Part I.F.7 of the Mill's State of Utah Groundwater Discharge Permit No. UGW370004 (the "Permit") and the Mill's Sampling and Analysis Plan for Seeps and Springs, Revision: 2, July 8, 2016 (the "Sampling Plan"). The Sampling Plan for Seeps and Springs was revised in July 2016 to incorporate changes requested by the Division of Waste Management and Radiation Control ("DWMRC"). The Sampling Plan/or Seeps and Springs, Revision: 2, July 8, 2016 was approved by DWMRC by letter dated August 8, 2016. 2.0 SAMPLING EVENTS Seeps and springs which were identified near the Mill in the 1978 Environmental Report (Plate 2.6-10, Dames and Moore, January 30, 1978) are to be sampled annually in accordance with the Sampling Plan and Part I.E.6 of the Permit. The Sampling Plan specifies the following sample locations: Corral Canyon Seep, Corral Springs, Ruin Spring, Cottonwood Seep, Westwater Seep and Entrance Spring (also referred to as Entrance Seep). 2.2 2023 Sampling In accordance with the Permit and the Sampling Plan, DWMRC was notified of the annual sampling events. On March 30, 2023 EFRI collected the Westwater Seep sample. On May 16, 2023, EFRI collected seeps and springs samples from Cottonwood Seep, Ruin Spring, Entrance Seep, and Back Spring ( duplicate of Ruin Spring). The DWMRC representative was present for May 16, 2023 sampling event and collected a "split" sample from the EFRI sampling equipment, using sample containers he provided. Corral Canyon Seep and Corral Springs were dry during the annual sampling event. 2.3 Repeat Visits to Dry Seeps and Springs. Corral Canyon Seep and Corral Springs, were visited once per calendar quarter in 2023. The visits were conducted in March, May, July and November 2023. Corral Canyon Seep and Corral Springs, were dry during all of the visits, could not be sampled, and did not warrant development attempts with limited hand tool excavation at that time. 2.4 Sampling Procedures Samples were collected and analyzed for the parameters listed in Table 2 of the Permit. Samples were collected from the locations indicated in Table 1. Sampling procedures for each seep or spring are determined by the site location and access. The DWMRC-approved sampling procedures for seeps and springs at the Mill are contained in the Sampling Plan. Samples collected under this plan were collected either by direct collection which involves collecting the sample directly into the sample container from the surface water feature or from spring out-flow, or by using a stainless steel ladle to collect water until a sufficient volume is contained in the ladle for transfer to the sample bottle. Filtered parameters are pumped through a 0.45 micron filter prior to delivery to the sample bottle. Ruin Spring In the case of Ruin Spring, sample bottles for the analytes collected during the May sampling event (except gross alpha and heavy metals) were filled directly from the spring out-flow which is a pipe. Samples for heavy metals and gross alpha were collected by means of a peristaltic pump and delivered directly to the sample containers through a 0.45 micron filter. The appropriate preservatives for the analytical technique were added to the samples. Westwater Seep Westwater Seep, was "developed" prior to the sampling event by Field Personnel. Development was completed by removing surrounding ' vegetation and clearing the sampling location in the spring or seep area. All of the sample containers were filled by means of a peristaltic pump and delivered directly to the sample containers. Samples for heavy metals and gross alpha were collected by means of a peristaltic pump and delivered directly to the sample containers through a 0.45 micron filter. The appropriate preservatives for the analytical technique were added to the samples. Cottonwood Seep and Entrance Spring Cottonwood Seep and Entrance Spring were "developed" prior to the sampling event by Field Personnel. Development was completed by removing surrounding vegetation and clearing the sampling location in the spring or seep area. The sample containers were filled by means of a peristaltic pump and delivered directly to the sample containers. In the case of the samples for heavy metals and gross alpha, the samples were delivered by a peristaltic pump directly to the sample containers through a 0.45 micron filter. The samples were preserved by the addition of the appropriate preservative for the analytical technique. The tubing on the peristaltic pump that comes into contact with the sample water was disposed of between each sampling. As a result, no equipment required decontamination, and no rinsate samples were collected. 2.5 Field Data Attached under Tab A are copies of the field data sheets recorded in association with the March and May seeps and springs monitoring events. Photographic documentation of the sampling sites is also included in Tab A. Sampling dates are listed in Table 1 and field parameters collected during the sampling program are included in Tab B. 2 2.6 Field QC Samples The field Quality Control ("QC") samples generated during the March and May sampling events included one trip blank per shipment to each laboratory which received samples for VOCs. The May sampling event included one duplicate to each laboratory which received samples for VOCs. The duplicate samples (Back Spring) were submitted blind to the analytical laboratory. As previously stated, no rinsate blanks were collected during this sampling event as only disposable equipment was used for sample collection. 3.0 SEEPS AND SPRINGS SURVEY AND CONTOUR MAP Part I.F.7(c) of the Permit requires that a water table contour map that includes the elevations for each well at the facility and the elevations of the phreatic surfaces observed for each of the seeps and springs sampled be submitted with this annual report. Tab C includes two contour maps. The contour map labeled C-1 shows the water table without the water level data associated with the dry ridge ("DR") investigation piezometers. The contour map labeled C-2 shows the water table with the water level data associated with the DR investigation piezometers. It is important to note that Cottonwood Seep is not included in any of the perched water level contouring, because there is no evidence to establish a hydraulic connection between Cottonwood Seep and the perched water system. Cottonwood Seep is located near the Brushy Basin Member/Westwater Canyon Member contact, approximately 230 feet below the base of the perched water system defined by the Burro Canyon Formation/Brushy Basin Member contact. The stratigraphic position of Cottonwood Seep indicates that its elevation is not representative of the perched potentiometric surface. Exclusion of the Cottonwood Seep from water level contouring is consistent with previous submissions. The contour map includes the corrected survey data from December 2009 as discussed below. Part I.F. 7 (g) of the Permit requires that survey data for the seeps and springs be collected prior to the collection of samples. DWMRC previously clarified that the requirement to submit survey data applies only to the first sampling event and not on an annual basis. The December 2009 and July 2010 seeps and springs survey data shown in Tab C will be used for reporting where seeps and springs locations and elevations are relevant. A full discussion of the survey data and the hydro geology of seeps and springs at the margins of White Mesa in the vicinity of the Mill and the relationship of these seeps and springs to the hydrogeology of the site, in particular to the occurrence of a relatively shallow perched groundwater zone beneath the site, is contained in Hydrogeology of the Perched Groundwater Zone and Associated Seeps and Springs Near the White Mesa Uranium Mill Site, dated November 12, 2010, prepared by Hydro Geo Chem, Inc. and submitted to the Director on November 15, 2010. Additional information is also contained in the Second Revision Hydrogeology of the Perched Groundwater Zone in the Area Southwest of the Tailings Cells White Mesa Mill Site, dated November 7, 2012, prepared by Hydro Geo Chem, Inc. and submitted to the Director on November 7, 2012. 3 4.0 QUALITY ASSURANCE AND QUALITY CONTROL 4.1 Laboratory Results Analytical results are provided by the Mill's two contract analytical laboratories GEL Laboratories, Inc., ("GEL") and CHEMTECH-FORD Laboratories ("CTF"). The laboratories utilized during this investigation were certified under the Environmental Lab Certification Program administered by UDEQ Bureau of Lab Improvement for the analyses they completed. The analytical data as well as the laboratory Quality Assurance ("QA")/QC summanes are included under Tab D. 4.2 DATA EVALUATION The Permit requires that the annual seeps and springs sampling program be conducted in compliance with the requirements specified in the Mill's approved White Mesa Uranium Mill Groundwater Monitoring Quality Assurance Plan ("QAP"), the approved Sampling Plan and the Permit. To meet this requirement, the data validation completed for the seeps and springs sampling program verified that the program met the requirements outlined in the QAP, the Permit and the approved Sampling Plan. The Mill Director, Regulatory Compliance performed a QA/QC review to confirm compliance of the monitoring program with requirements of the Permit and 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 quality control review of laboratory data methods and data. Identification of field QC samples collected and analyzed is provided in Section 4.5.1. Discussion of adherence to the Sampling Plan is provided in Section 4.3. Analytical completeness review results are provided in Section 4.4. The steps and tests applied to check laboratory data QA/QC are discussed in Sections 4.5.1 through 4.5.9 below. The analytical laboratories have provided summary reports of the analytical QA/QC measurements necessary to maintain conformance with National Environmental Laboratory Accreditation Conference 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 D. Results of the review of the laboratory QA/QC information are provided under Tab E and discussed in Section 4.5 below. 4.3 Adherence to Sampling Plan and Permit Requirements On a review of adherence by Mill personnel to the Permit, the Director, Regulatory Compliance observed that QA/QC requirements established in the Permit and the QAP were met and that the requirements were implemented as required except, as noted below. 4 The Permit only requires the measurement of the field parameters pH, conductivity and temperature. Field parameter measurements collected during this sampling event included pH, conductivity, temperature, redox potential, turbidity, and dissolved oxygen ("DO"). 4.4 Analyte Completeness Review The analyses required by the Permit Table 2 were completed. 4.5 Data Validation The QAP and the Permit identify the data validation steps and data quality control checks required for the seeps and springs monitoring program. Consistent with these requirements, the Director, Regulatory Compliance performed the following evaluations: a field data QA/QC evaluation, a receipt temperature check, a holding time check, an analytical method check, a reporting limit check, a trip blank check, a QA/QC evaluation of sample duplicates, a gross alpha counting error evaluation and a review of each laboratory's reported QA/QC information. Each evaluation is discussed in the following sections. Data check tables indicating the results of each test are provided under Tab E. 4.5.1 Field Data QA/QC Evaluation The Director, Regulatory Compliance performs a review of field recorded parameters to assess their adherence with QAP and Permit requirements. The assessment involved review of the Field Data sheets. Review of the Field Data Sheets noted that the requirements for field data collection were met. 4.5.2 Holding Time Evaluation QAP Table 1 identifies the method holding times for each suite of parameters. Sample holding time checks are provided under Tab E. The samples were received and analyzed within the required holding time. 4.5.3 Laboratory Receipt Temperature Check Chain of Custody sheets were reviewed to confirm compliance with the sample receipt requirements specified in the QAP. Sample receipt temperature checks are provided under Tab E. The samples were received within the QAP required temperature limit. 4.5.4 Analytical Method Check The analytical methods reported by both laboratories were checked against the required methods specified in Table 1 of the QAP. Analytical method check results are provided in Tab E. The samples were analyzed using the methods specified in the QAP. 5 4.5.5 Reporting Limit Evaluation Reporting limits utilized by the laboratory were required to be equal to or lower than the Groundwater Quality Standards ("GWQSs") set out in Table 2 of the Permit. For Total Dissolved Solids ("TDS"), sulfate and chloride, for which Ground Water Quality Standards are not set out in Table 2 of the Permit, reporting limits specified in Part 1.E.6.e ).(1) were used. Those reporting limits are 10 mg/L for TDS, and 1 mg/L for Sulfate and Chloride. The analytical method reporting limits reported by both laboratories were checked against the reporting limits specified in the Permit. Reporting limit evaluations are provided in Tab E. All analytes were measured and reported to the required reporting limits except the sample results that had the reporting limit raised due to sample dilution necessary to accommodate the analyte concentrations in the samples. In all cases the reported value for the analyte was higher than the increased detection limit. It is important to note that the CTF reported some analytes lower than the GWDP required limits (equivalent to the GWQSs). All previous data were reported to the GWQS as required by the GWDP. These lower RLs resulted in detections being reported starting in 2022 that have never been reported before. These detections are not indicative of increasing analyte concentrations, but are indicative of lower RLs and low level detections. 4.5.6 Trip Blank Evaluation The trip blank results were reviewed to identify any VOC sample contamination which is the result of sample handling and shipment. Trip blank evaluation is provided in Tab E. The trip blank results associated with the samples were less than the reporting limit for the VOCs. 4.5.7 QA/QC Evaluation for Sample Duplicates Section 9.1.4 a) of the QAP states that the Relative Percent Difference ("RPD") 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 ( described as activities in the QAP) are less than 5 times the required detection limit. This standard is based on the United Stated Environmental Protection Agency Contract Laboratory Program National Functional Guidelines for Inorganic Data Review, February 1994, 9240.1-05-01 as cited in the QAP. The RPDs are calculated for duplicate pairs for the analytes regardless of whether or not the reported concentrations are greater than 5 times the required detection limits; however, data will be considered noncompliant only when the results are greater than 5 times the required detection limit and the RPD is greater than 20%. RPDs are also only calculated when both the sample and the duplicate report a detection for any given analyte. If only one of the pair reports a detection, the RPD cannot be calculated. The additional duplicate information is provided for information purposes. All duplicate results except for chloride in the Back Spring/Ruin Spring duplicate pair were within 20% RPD. The chloride results were greater than 20% RPD. Per the approved QAP, a separate corrective action for duplicate RPDs outside of acceptance limits has been developed. The revised procedure for duplicate results outside of acceptance limits was implemented. The 6 corrective actions that were taken in accordance with the revised procedure are as follows: the Director, Regulatory Compliance contacted the Analytical Laboratory and requested a review of the raw data to assure that there were no transcription errors, and the data were accurately reported. The laboratory noted that the data were accurate and reported correctly. Reanalysis was not completed as the samples were out of holding time. There is no effect on the usability of the data due to the duplicate results exceeding the comparability criteria the noncompliance was due to matrix interferences. The duplicate evaluation is provided in Tab E. 4.5.8 Radiologies Counting Error Section 9 .14 of the QAP requires that all gross alpha analysis reported with an activity equal to or greater than the Groundwater Compliance Limits set out in the Permit (for the seeps and springs samples the GWQS will be used), shall have a counting variance that is equal to or less than 20% of the reported activity concentration. An error term may be greater than 20% of the reported activity concentration when the sum of the activity concentration and error term is less than or equal to the GWQS. Section 9 .4 of the QAP also requires a comparability check between the sample and field duplicate sample results utilizing the formula provided in the text. All radiological results were reported were non-detect and therefore within acceptance limits. Results of routine radiologic sample QC are provided under Tab E. 4.5.9 Laboratory Matrix QC Evaluation 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-specific required limits, or that the case narrative sufficiently explains any deviation from these limits. Results of this quantitative check are provided under Tab E. The lab QA/QC results from both GEL and CTF met these requirements except as described below. A number of the seeps and springs samples had the reporting limit raised due to matrix interference and/or sample dilution. In all cases where the detection limit was increased, the concentration for the analyte was higher than the increased detection limit. The check samples included at least the following: a method blank, a laboratory control spike ("LCS"), a matrix spike ("MS") and a matrix spike duplicate ("MSD"), or the equivalent, where applicable. It should be noted that: 7 • Laboratory fortified blanks are equivalent to LCSs. • Laboratory reagent blanks are equivalent to method blanks. • Post digestion spikes are equivalent to MSs. • Post digestion spike duplicates are equivalent to MSDs. • For method E900.1, used to determine gross alpha, a sample duplicate was used instead ofaMSD. The qualifiers, and the corresponding explanations reported in the QA/QC Summary Reports for any of the check samples for any of the analytical methods, were reviewed by the Director, Regulatory Compliance. The QAP Section 8.1.2 requires that a MS/MSD pair be analyzed with each analytical batch. The QAP does not specify acceptance limits for the MS/MSD pair, and the QAP does not specify that the MS/MSD pair be prepared on EFRI samples only. Acceptance limits for MS/MSDs are set by the laboratories. The review of the information provided by the laboratories in the data packages verified that the QAP requirement to analyze a MS/MSD pair with each analytical batch was met. While the QAP does not require it, the recoveries were reviewed for compliance with each laboratory's 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/MSD recoveries and the associated RPDs for the seeps and springs samples were within acceptable laboratory limits except as noted in Tab E. The MS/MSD recoveries that were 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 requirement in the QAPs to analyze a MS/MSD pair with each analytical batch was met and as such the data are compliant with the QAP. The information from the Laboratory QA/QC Summary Reports indicates that there were low LCS recoveries in one analytical batch as indicated in Tab E. A low LCS recovery for chloromethane were reported in analytical batch 23E1617. The data were flagged in accordance with EPA protocols. The Chloromethane data are usable because chloromethane, as well as other volatiles, are not frequently or historically detected and the non- detects are likely accurate. The QAP specifies that surrogate compounds shall be employed for all organic analyses, but the QAP does not specify acceptance limits for surrogate recoveries. The analytical data associated with the routine quarterly sampling met the requirement specified in the QAP. The information from the Laboratory QA/QC Summary Reports indicates that the surrogate recoveries for the seeps and springs samples were within acceptable laboratory limits for all surrogate compounds. 8 The QAP Section 8.1.2 requires that each analytical batch shall be accompanied by a reagent blank. Contamination detected in analysis of reagent blanks/method blanks will be used to evaluate any analytical laboratory contamination of environmental samples. The QAP specified process for evaluation of reagent/method blanks states that nonconformance will exist when blanks are within an order of magnitude of the sample results. The information from the Laboratory QA/QC Summary Reports indicates that the reagent (method) blanks for the seeps and springs samples were non-detect and were therefore within the acceptance criteria specified in the QAP. Laboratory duplicates are completed by the analytical laboratories as required by the analytical method specifications. Acceptance limits for laboratory duplicates are set by the laboratories. The QAP does not require the completion of laboratory duplicates or the completion of a QA assessment of them. EFRl reviews the QC data provided by the laboratories for completeness and to assess the overall quality of the data provided. Laboratory duplicate results are provided in Tab D. 5.0 EVALUATION OF ANALYTICAL DATA As previously stated, the samples were analyzed for the groundwater compliance parameters found on Table 2 of the Permit. In addition to these laboratory parameters, the pH, temperature, conductivity, (and although not required, redox, DO and turbidity) were measured and recorded in the field. 5.1 Evaluation of Analytical Results The results of the March and May sampling events show no evidence of Mill influence in the water produced by the seeps and springs sampled. The lack of Mill influence on seeps and springs is indicated by the fact that the parameters detected are within the ranges of concentrations for the on-site monitoring wells and for available historic data for the seeps and springs themselves. For those detected analytes, concentrations are shown in Tables 2A, 2B, 2C, and 2D. The data are compared to available historic data for each seep and spring as well as to on-site monitoring well data. Specific discussions about each seep or spring are included below. 5.1.1 Ruin Spring No VOCs or radiologies were detected. Metals and major ions were the only analytes detected. The metals detections were minimal with only calcium, magnesium, potassium, sodium, chromium, manganese, mercury, molybdenum, nickel, selenium, uranium and vanadium having positive detections. The major ions detected include· bicarbonate, chloride, fluoride, nitrate, sulfate and TDS. A comparison of the 2009 through 2022 data to the 2023 data shows that the concentrations of most detected analytes remained approximately the same with only minor changes within the limits of normal analytical deviation. The RLs and the reported values for chromium, manganese, mercury, molybdenum, nickel, and vanadium were below the GWDP required RL as noted in Section 4.5.5. The reported values for bicarbonate, TDS, manganese, mercury, nickel, selenium, and uranium increased slightly from the 2022 sample results and remain below the upper range of historic background values of this location and/or below the upper range of historic background values (where available) for the on-site monitoring wells. 9 The differences are not significant and are most likely due to normal fluctuations due to flow rates or seasonal variations due to annual precipitation. Overall, the data reported for Ruin Spring are typical for a surface water sample with no indication of Mill influence. 5.1.2 Cottonwood Spring No VOCs or radiologies were detected. Metals and major ions were the only analytes detected. The metals detections were minimal with calcium, magnesium, potassium, sodium, arsenic, chromium, manganese, molybdenum, nickel, selenium, tin, uranium and vanadium having a positive detection. The major ions detected include bicarbonate, chloride, fluoride, sulfate, and TDS. A comparison of the 2009 through 2022 data to the 2023 data shows that the concentrations of most detected analytes remained approximately the same with only minor changes within the limits of normal analytical deviation. The RLs and the reported values for arsenic, chromium, manganese, molybdenum, nickel, selenium, tin, and vanadium were below the GWDP required RL as noted in Section 4.5.5. The reported values for TDS, bicarbonate, calcium, arsenic, manganese, nickel, selenium and uranium increased from the 2022 sample results, and remain below the upper range of historic background values of this location and/or below the upper range of historic background values (where available) for the on-site monitoring wells. The differences are not significant and are most likely due to normal fluctuations due to flow rates or seasonal variations due to annual precipitation. Overall, the data reported for Cottonwood Spring are typical for a surface water sample with no indication of Mill influence. 5.1.3 Westwater Seep No VOCs or radiologies were detected. Metals and major ions were the only analytes detected. The metals detections were minimal with calcium, magnesium, potassium, sodium, arsenic, chromium, cobalt, iron, manganese, molybdenum, nickel, selenium, vanadium and uranium having positive detections. The major ions detected include bicarbonate, chloride, fluoride, sulfate, and TDS. A comparison of the historic data to the 2023 data shows that the concentrations of most detected analytes remained approximately the same with only minor changes within the limits of normal analytical deviation. The RLs and the reported values for arsenic, chromium, cobalt, molybdenum, nickel, selenium, and vanadium were below the GWDP required RL as noted in Section 4.5.5. The reported values for bicarbonate, TDS, calcium, potassium, chloride, chromium, magnesium, molybdenum, sodium, sulfate, vanadium and uranium increased from the 2022 sample results and the reported values remain below the upper range of historic background values of this location and/or below the upper range of historic background values (where available) for the on-site monitoring wells. The differences are not significant and are most likely due to normal fluctuations due to flow rates or seasonal variations due to annual precipitation. Overall, the data reported for Westwater Seep are typical for a surface water sample with no indication of Mill influence. 5.1.4 Entrance Spring No VOCs or radiologies were detected. Metals and major ions were the only analytes detected. The metals detections were minimal with only calcium, magnesium, potassium, sodium, arsenic, chromium, cobalt, iron, molybdenum, nickel, tin, uranium, vanadium, manganese and selenium having positive detections. The major ions detected include bicarbonate, chloride, fluoride, 10 nitrate, sulfate, and TDS. A comparison of the 2009 through 2022 data to the 2023 data shows that the concentrations of most detected analytes remained approximately the same with only minor changes within the limits of normal analytical deviation. The RLs and the reported values for arsenic, chromium, cobalt, molybdenum, nickel, and vanadium were below the GWDP required RL as noted in Section 4.5.5. The reported values for calcium, chloride, magnesium, nitrate, potassium, sodium, sulfate, TDS, bicarbonate, arsenic, cobalt, manganese, nickel, selenium, tin, and uranium increased from the 2022 sample results. The detected concentrations and the reported value remain below the upper range of historic background values of this location and/or below the upper range of historic background values (where available) for the on- site monitoring wells. As stated in Section 2.4 above Entrance Spring is "developed" prior to the sampling event by Field Personnel. Development was completed the day prior to sampling by removing surrounding vegetation and clearing the sampling location in the spring or seep area. A shovel or trowel is used to dig a hole in the soil, which is allowed to fill with water. The standing water was sampled. Field Personnel noted the area was muddy and there is livestock activity in the area. The Entrance Spring sample data and constituent concentrations are likely affected by the muddy site conditions and livestock activity in the sampling area. Overall, the data reported for Entrance Spring are typical for a surface water sample with no indication of Mill influence. 6.0 CORRECTIVE ACTION REPORT No corrective action reports are required for the 2023 annual sampling event. 6.1 Assessment of Corrective Actions from Previous Period No corrective action reports were required for the 2022 annual sampling event. 7.0 ELECTRONIC DATA FILES AND FORMAT EFRI has provided to the Director electronic copies of the laboratory results as part of the annual seeps and springs monitoring in Comma Separated Values, from the laboratory. A copy of the transmittal e-mail is included under Tab F. 11 8.0 SIGNATURE AND CERTIFICATION This document was prepared by Energy Fuels Resources (USA) Inc. Energy Fuels Resources (USA) Inc. By: Scott A. Bakken Vice President, Regulatory Affairs 12 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. 13 Tables Table 1: Summary of Seeps and Springs Sampling Work Order Location Sample Date N o./Lab Set ID Date of Lab Report Cottonwood Spring 5/16/2023 CTF = 23El617 CTF = 6/7/2023 GEL= 622849 GEL = 6/8/2023 Entrance Seep 5/16/2023 CTF = 23El617 CTF = 6/7/2023 GEL= 622849 GEL= 6/8/2023 Back Spring (Duplicate of 5/16/2023 CTF = 23El617 CTF = 6/7/2023 Ruin Spring) GEL= 622849 GEL = 6/8/2023 Ruin Spring 5/16/2023 CTF = 23El617 CTF = 6/7/2023 GEL= 622849 GEL= 6/8/2023 Corral Spring Not Sampled -Dry Not Sampled -Dry Not Sampled -Dry Corral Canyon Seep Not Sampled-Dry Not Sampled -Dry Not Sampled -Dry Westwater Seep 3/30/2023 CTF = 23C2301 CTF = 4/20/2023 GEL= 617042 GEL = 4/28/2023 Table 2A Detected Constituents and Comparison to Historic Values and Mill Site Monitoring Wells Ruin Spring Range of Average Constituent 2009 2010 2011 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 Historic Avg2003 May July 2023 Values for 20041 Monitoring Wells 1* Major Ions (mg/I) Carbonate <I <\ <\ I <I <I <1 <] <\ <] <\ <\ <I <\ <I <I -- Bicarbonate 233 254 241 239 237 208 204 200 193 208 202 202 186 200 185 191 -- Calcium 151 136 145 148 147 149 150 162 138 145 158 165 169 154 141 136 -- Chloride 28 23 25 44 28 26 3 27.1 27.4 24.4 27.4 29 9 23 9 25 8 28 I 28 4 18.3 ND-213 27 Fluoride 0.5 0.53 0.45 0.5 0.52 0 538 <1 0,445 0 541 05 0 414 0.505 0 473 0.468 05 0 364 ND-1.3 0.6 Magnesium 32 3 29.7 30,6 31. 1 31.9 32 1 35,4 31.8 3 I. I 30.2 33.9 45.6 36.9 34.8 32.9 30.3 -- Nitrogen-Ammonia 0 09 <0.05 ND <0.05 <0,05 <O 05 <0.05 <0,05 <O 05 <0,05 <0.05 <0,05 <0,05 <0,05 02 <O 20 -- Nitrogen-Nitrate 14 1.7 I 7 1.6 1,6 1.56 I 54 1.3 I 1.64 I 55 I 35 1.56 1.39 1.26 1.20 1.20 .., - Potassium 3.3 3.07 32 3 3 3 5 3A6 324 3.14 3. 18 3.07 3.58 3.31 4.09 3.83 3.2 3.0 -- Sodium 104 93.4 110 Ill 115 118 119 126 105 113 128 128 139 119 117 105 -- Sulfate 528 447 486 484 464 553 553 528 490 476 547 474 469 557 595 448 ND-3455 521 TDS 1010 903 942 905 1000 952 984 1000 916 972 1000 900 1240 1080 992 2110 1019 -5548 1053 Metals ( ug/1) Arsenic <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <O 5 <0.5 --· Beryllium <0,5 <0,5 <05 <05 <0,5 <0.5 <0.5 <O 5 <0.5 <0.5 <0.5 <0.5 <0.5 <O 5 <0.5 <0.5 -- Cadmium <0,5 <O 5 <0,5 <0.5 <0.5 <0.5 <O 5 <0.5 <0.5 <O 5 <0.5 <0.5 <0.5 <0.5 <O 2 <0.2 ND-4.78 0.01 Chromium <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 4.2 2.4 -- Cobalt <10 <JO <10 <JO <10 <JO <JO <JO <JO <JO <JO <10 <10 <JO <0.5 <0,5 -- Copper <JO <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <JO <JO <1.0 <1,0 -- Iron <30 <30 <30 <30 <30 <30 <30 <30 <30 <30 <30 <30 <30 <30 <20 <20 ND-7942 25 Lead <1.0 <1.0 <J,O <1 ,0 <1 ,0 <1.0 <1.0 <1.0 <1.0 <1.0 <1,0 <1.0 <1.0 <1.0 <0.5 <0.5 -- Manganese <10 <10 <JO <JO <JO <10 <10 <JO <10 <10 <10 <10 <10 <10 <O 5 24 ND-34,550 5 Mercury <O 5 <O 5 <0,5 <0,5 <0,5 <0.5 <0,5 <O 5 <0.5 <0,5 <O 5 <O 5 <0,5 <O 5 <0,2 0.28 -- Molybdenum 17 17 16 17 16 16,1 16 0 18,3 17,8 17 2 18 20 2 18,7 18 7 17,7 17,1 -- Nickel <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 06 I 3 ND-61 0.05 Selenium 12.2 10 11.8 10.2 10.8 10.2 12 10 JO 10.5 12.2 10.8 10.5 11.2 11. 7 12.3 ND-106.5 12.1 Silver <JO <JO <JO <10 <10 <10 <JO <10 <10 <10 <JO <JO <10 <10 <O 5 <0,5 -- Thallium <O 5 <O 5 <0.5 <0.5 <O 5 <0.5 <0,5 <O 5 <0.5 <0.5 <O 5 <O 5 <O 5 <O 5 <O 2 <0.2 -- Tin <100 <JOO <JOO <100 <100 <100 <JOO <100 <100 <JOO <JOO <JOO <JOO <100 <20 <20 -- Uranium 9.11 8.47 9,35 8,63 8,68 9.12 9.61 9,03 8.38 8.49 9.35 9.02 9.32 9.31 9.1 9.3 ND-59.8 10 Vanadium <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 1,3 09 -- Zinc <JO <JO <10 <10 <JO <10 <10 <10 <10 <10 <10 <JO <10 <JO <JO <JO -- Table 2A Detected Constituents and Comparison to Historic Values and Mill Site Monitoring Wells Ruin Spring Range of Average Constituent 2009 2010 2011 2011 2012 2014 2017 2023 Historic Avg2003 May July 2013 2015 2016 2018 2019 2020 2021 2022 Values for 20042 Monitoring Wells 1* Radiologies (pCi/1) Gross Alpha <0,2 <0.2 <-0,3 <-0,05 <-0,09 <I 0 <1 <1.0 <1.0 <1.0 <1.57 <1.0 <1.0 <1.0 <I 0 <1.0 ND-36 0.28 VOCS(ug/L) Acetone <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <10 <10 -- Benzene <1.0 <10 <1,0 <1,0 <1,0 <1,0 <1 .0 <1,0 <1.0 <1.0 <1,0 <I 0 <1.0 <I 0 <I 0 <1.0 -- Carbon <1.0 <1.0 <1.0 <1.0 <1.0 <10 <I 0 <1.0 <1.0 <1.0 <10 <1,0 <1.0 <1.0 <1.0 <1.0 Tetrachloride -- Chloroform <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 -- Chloromethane <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1 .0 <1.0 <1.0 <1.0 <1.0 <1.0 <1,0 <1.0 <1.0 <1.0 -- MEK <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <10 <1.0 -- Methylene Chloride <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1,0 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <2.0 -- Naphthalene <1,0 <I 0 <1,0 <1,0 <10 <JO <10 <I 0 <1,0 <1.0 <I 0 <10 <10 <1 0 <10 <1.0 -- Tetrahydrofuran <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 -- Toluene <1.0 <1,0 <1.0 <1.0 <1.0 <10 <10 <1.0 <1.0 <I 0 <10 <1.0 <1.0 <1.0 <I 0 <1.0 -- Xylenes <1.0 <I 0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 -- 1 From Figure 3, Table IO and Appendix B of the Revised Addendum, Background Groundwater Quality Report: New Wells for Denison Mines (USA) Corp 's White Mesa Mill SIie, San Juan County, Utah, April 30, 2008, prepared by INTERA, Inc and Table 16 and Appendix D of the Re1•ised Background Groundwater Quality /leport: Existing Wells for /Jenison Mmes (USA) Corp, 's While Mesa Uranium Mill Site, San Juan County, Utah, October 2007, prepared by INTERA, Inc, 2 From Figure 9 of the Rewsed Addendum, Evaluatwn of Avmlable Pre-Operational and Regional Background Dala, Background Groundwater Quality Report: Hxtsting Wells for Denison Mmes (USA) Corp. 's While Mesa Mill Site, San Juan Couinly, Utah, November 16, 2007, prepared by INTERA, Inc, *Range of average historic values for On-Site Monitoring Wells as reported on April 30, 2008 (MW•l, MW-2, MW-3, MW-3A, MW-4, MW-5, MW-I I, MW-12, MW-14, MW-15, MW-17, MW-18, MW-19, MW-20, MW-22, MW-23, MW-24, MW-25, MW-26, MW-27, MW-28, MW-29, MW-30, MW-31 and MW-32)2 Table 28 Detected Constituents and Comparison to Historic Values and Mill Site Mi:mit6ring Wells Cottonwood Spring Range of Average Constituent 2009 2010 2011 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 Historic Avg 1977 May July Values for 1982 1 Monitoring Wells1* Major Ions (mg/I) Carbonate <l <I <I 6 <1 <1 <1 <l <l <l <I <l <l <I <I <I -- Bicarbonate 316 340 330 316 326 280 251 271 256 280 283 286 280 298 267 270 -- Calcium 90 3 92 2 95.4 94,2 101 87,9 99 7 111 102 99 6 109 122 120 108 99,0 99.2 --- Chloride 124 112 113 134 149 118 128 133 138 129 153 138 146 143 143 127 ND-213 31 Fluoride 0.4 0.38 0.34 0.38 0.38 0.417 <I 0.318 0.466 0.344 0.282 0.249 0.233 0.317 OJ 0.249 ND-1.3 0.8 Magnesium 25 24.8 25.2 25.2 27 7 23.6 29 0 27.5 29.5 27 I 30.2 35.3 32 9 3 I 3 28.5 27,5 -- Nitrogen-<0,05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 0.0512 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.20 <0.20 Ammonia -- Nitrogen-Nitrate 0.1 <0.1 0.1 <0.1 <O I <0.1 <0.1 <O I <O I 0.124 0 108 <0.1 <0.1 <0.1 <0.1 <0.100 --- Potassium 5,7 5 77 6 5 9 6.2 5,53 6.18 5 91 6 11 5 72 6.35 6.78 714 7.40 5 9 5.6 -- Sodium 205 214 229 227 247 217 227 251 221 213 234 268 273 223 214 206 -·- Sulfate 383 389 394 389 256 403 417 442 443 409 428 423 417 443 528 401 ND-3455 230 TDS 1010 900 1030 978 1040 996 968 1020 1070 1080 1080 1010 860 1110 1130 1390 1019-5548 811 Metals (ug/1) Arsenic <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 1.8 2.3 -- Beryllium <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 -- Cadmium <0.5 <0.5 <0,5 <0.5 <0.5 <0.5 <0.5 <0.5 <O 5 <0,5 <0,5 <O 5 <0.5 <O 5 <0,2 <0,2 ND-4,78 - Chromium <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 66 3,1 --- Cobalt <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <IO <0.5 <0.5 --- Copper <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <1 ,0 <l 0 --- Iron <30 <30 53 <30 <30 <30 <30 <30 <30 <30 <30 <30 <30 <30 <20 <20 ND-7942 150 Lead <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <I 0 <I 0 <1.0 <I 0 <1.0 <10 <0.5 <0.5 -- Manganese <10 <10 <10 <10 <IO <IO <10 <10 <10 <10 <10 <10 <10 <10 09 25 ND-34,550 580 Mercury <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <O 5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.2 <0.15 -·- Molybdenum <IO <10 <10 <IO <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 1.4 I 3 --- Nickel <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <0.5 09 ND-61 - Selenium <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5 <5 <5 <5 <5 <5 <5 1.4 4.7 ND-106.5 -- Silver <IO <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <0,5 <O 5 -· -- Thallium <0,5 <0,5 <O 5 <0.5 <O 5 <O 5 <O 5 <5 <5 <O 5 <O 5 <O 5 <0.5 <O 5 <0.2 <0.2 -- Tin <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <JOO <100 <JOO <100 <20 20 -- Uranium 8.42 8 24 7,87 8 68 8 17 8.95 9 62 9 12 8 84 9,17 10.3 10,1 10.5 10,6 9.7 10.2 ND-59.8 - Vanadium <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 2.4 1.6 -- Zinc <10 <10 <10 <10 <10 <10 <10 <10 <10 <IO <IO <10 <10 <10 <10 <10 -- Table 2B Detected Constituents and Comparison to Historic Values and Mill Site Monitoring Wells Cottonwood Spring Range of Average Constituent 2009 2010 2011 2011 2012 2013 2014 2015 2016 2017 2018 2021 Historic Avg 1977 May July 2019 2020 2022 2023 Values for 1982 I Monitoring Wells1" Radiologies (pCi/1) Gross Alpha <0.2 <0.2 <0.1 <-0.1 <-0.2 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1,0 <JO <1.0 <I 0 <1.0 ND-36 7.2 VOCS(ug/L) Acetone <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <10 <10 -- Benzene <LO <1.0 <LO <1.0 <LO <1.0 <1.0 <LO <LO <LO <1.0 <I 0 <JO <1.0 <JO <1.0 -- Carbon <1.0 <1.0 <LO <JO <LO <LO <1.0 <1.0 tetrachloride <LO <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 -- Chloroform <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <I 0 <1.0 -- Chloromethane <I 0 <1.0 <I 0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1 ,0 <1.0 <1.0 -- MEK <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <10 <1.0 -- Methylene <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <2,0 <2,0 Chloride -- Naphthalene <1.0 <1.0 <I 0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <LO <1.0 <1.0 --- Tetrahydrofuran <1.0 <LO <I 0 <1,0 <1.0 <] 0 <1.0 <1.0 <1.0 <1.0 <I 0 <1.0 <1.0 <1 .0 <1.0 <1.0 -- Toluene <10 <1.0 <JO <I 0 <1.0 <LO <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 --- Xylenes <1.0 <1.0 <JO <1,0 <1.0 <I 0 <1.0 <1.0 <1.0 <1.0 <1.0 <JO <1.0 <1.0 <I 0 <1.0 --- 1 From Figure 3, Table IO and Appendix B of the llevised Addendum, Background Groundwater Quality lleporl: New Wells for !Jeni.mn Mines (USA) Co1p 's While Mesa Mill Sile, San Juan County, Utah , April 30, 2008, prepared by INTERA, Inc, and Table I 6 and Appendix D of the Revised Background Groundwater Qualily Report: Existing Wells/or /Jenison Mines (USA) Corp 's White Mesa Uran,11111 Mill Sile, San Juan County, Utah, October 2007, prepared by INTERA, Inc *Range of average historic values for On-Site Monitoring Wells as reported on April 30, 2008 (MW-1, MW-2, MW-3, MW-3A, MW-4, MW-5, MW-11, MW-12, MW-14, MW-15, MW-17, MW-18, MW-19. MW-20, MW-22, MW-23, MW-24, MW- 25, MW-26, MW-27, MW-28, MW-29, MW-30, MW-31 and MW-32) Table 2C Detected Constituents and Comparison to Historic Values and Mi_l_l Site Monitoring Wells Westwater Seep Range of Average Constituent 2009 2010 2011 May 2011 July 2012 2013 2014 2015 2016 2017 2018 2019 2020 2020 2023 Historic (March) (June) 2021 2022 Values for Monitoring Wells1 * Major Ions (mW!) Carbonate <I <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 -- Bicarbonate 465 450 371 359 399 369 444 450 270 450 320 257 290 - Calcium 191 179 247 150 176 125 204 185 118 204 125 104 148 -- Chloride 41 40 21 32.6 38 0 27.5 36-2 41.6 26.6 40.6 29.2 21.9 49.6 ND-213 Fluoride 07 0.6 0 54 0.424 0.618 0.574 0 659 0.505 0 555 0.429 0.473 0.5 0.434 ND-1.3 Magnesium 45.9 44 7 34.7 Not Not Sampled Not Sampled Not Sampled 34 47.3 31.7 56.6 43.7 30 8 54.6 30.9 26 4 37 5 -Sampled Nitrogen-Ammonia <0.05 0,5 0 06 Dry Dry Dry Dry 0.123 <0.05 <0.05 0.0832 <O 05 0 0593 <0 05 <O 05 <O 2 <0,20 - Nitrogen-Ni Irate 0,8 <0.1 <0.1 <O 1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.100 -- Potassium 1 19 6 57 3.9 1.98 2 32 2.33 2 94 3,99 1.76 5,28 1.78 1.3 1.9 - Sodium 196 160 112 139 185 133 218 152 117 245 111 98 7 128 - Sulfate 646 607 354 392 573 318 580 436 307 460 340 278 491 ND-3455 TDS 1370 1270 853 896 1060 820 1220 1110 1200 1480 876 672 1030 1019 -5548 Metals (uwl) Arsenic <5 <5 12 3 <5 0 <5 0 <5 0 <5.0 <5.0 <5.0 <5.0 <5.0 1 8 1,7 - Beryllium <O 5 <O 5 0 91 <O 5 <O 5 <0.5 <0.5 <0.5 <0,5 <O 5 <O 5 <0,5 <0,5 - Cadmium <0.5 <0.5 0.9 <0.5 <0,5 <O 5 <0.5 <0.5 <O 5 <O 5 <O 5 <0.2 <02 ND-4.78 Chromium <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 1 4 2.9 - Cobalt <10 <10 <JO <10 <10 <10 <IO <10 <10 <10 <JO I 08 - Copper <JO <10 16 <JO <10 <JO <JO <10 <10 <JO <JO <1.0 <1,0 . - Iron 89 56 4540 <30 40 1 181 575 1200 401 <30 948 920 30 ND-7942 Lead <1.0 <J.O 41.4 <JO <1.0 <10 <1.0 <! 0 <1.0 <1.0 <1.0 <0.5 <0.5 - Manganese 37 87 268 Not 171 55.5 144 312 528 369 35.4 432 206 151 ND-34,550 Mercury <O 5 <O 5 <O 5 Sampled Not Sampled Not Sampled Not Sampled <0.5 <0.5 <0.5 <O 5 <O 5 <O 5 <0,5 <O 5 <O 2 <O 15 Dry Dry Dry - Molybdenum 29 29 <JO Dry <JO <10 <10 <10 <JO <JO <IO <10 1.4 2 1 - Nickel <20 <20 29 <20 <20 <20 <20 <20 <20 <20 <20 1.7 1.6 ND-61 Selenium <5.0 <5 0 <5 0 <5 0 <5,0 <5.0 <5 0 <5.0 <5.0 <5,0 <5,0 I A 1.2 ND-106.5 Silver <10 <10 <JO <10 <10 <10 <10 <10 <10 <10 <JO <O 5 <0.5 - Thallium <O 5 <0.5 <0.5 <0.5 <0.5 <O 5 <O 5 <O 5 <0.5 <0.5 <0.5 <O 2 <0.2 - Tin <100 <100 <100 <100 <100 <100 <100 <JOO <100 <100 <100 <20 <20 - Uranium 15.1 46.6 6.64 2.1 19 0 5 17 13 2 4.92 2.34 12.90 2.07 1.4 3 5 ND-59.8 Vanadium <15 <15 34 <15 <15 <15 <15 <15 <15 <15 <15 0.6 1.4 - Zinc <10 <10 28 <JO <10 <10 <JO <JO <10 <10 <10 <10 <10.0 - Table 2C Detected Constituents and Comparison to Historic Values and Mill Site Monitoring Wells Westwater Seep Range of Average Constituent 2020 2020 Hilltoric 2009 2010 2011 May 2011 July 2012 2013 2014 2015 2016 2017 2018 2019 (March) (June) 2021 2022 2023 Values for Monitoring Wells1 * Radiologies (pCi/1) Not Not Sampled Not Sampled Not Sampled Gross Alpha <-0.1 <0.3 0.5 Sampled <10 <1,0 <1 0 <1.0 <10 <1,0 <10 <1 0 <10 <1,0 ND-36 Dry Dry Dry Dry VOCS(ul!/L) Acetone <20 <20 <20 <20 <20 23 1 <20 <20 <20 <20 <20 <10 <10 - Benzene <10 <1.0 <1.0 <1,0 <1,0 <10 <1.0 <1.0 <1.0 <10 <10 <0.4 <1.0 - Carbon tetrachloride <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 - Chloroform <10 <1.0 <1 0 <1 .0 <1.0 <1 0 <10 <1.0 <1.0 <10 <1.0 <1.0 <1.0 - Chloromethane <10 <1.0 <10 Not <1.0 <1.0 <1.0 <10 <1.0 <1.0 <10 <10 <1.0 <1.0 - MEK <20 <20 <20 Sampled Not Sampled Not Sampled Not Sampled <20 <20 <20 <20 <20 <20 <20 <20 <10 <1.0 Dry Dry Dry - Methylene Chloride <1.0 <1.0 <1.0 Dry <LO <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <2,0 <2.0 - Naphthalene <1.0 <10 <IO <10 <1.0 <1 0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 - Tetrahydrofuran <1.0 <1.0 <1.0 <1 .0 <1.0 <1.0 <1.0 <1.0 <1.0 <1 0 <1 0 <1.0 <1.0 - Toluene <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <10 <1.0 <10 <1.0 <1.0 - Xylenes <1.0 <10 <1 0 <IO <1.0 <1.0 <1.0 <1.0 <LO <1.0 <1.0 <1.0 <1.0 - 1 From Figure 3, Table IO and Appendix B of the Revised Addendum, Background Groundwater Quality Report: New Wells for Denison Mines (USA) Corp 's White Mesa Mill Site, San Juan County. Utah, April 30, 2008, prepared by INT ERA, Inc. and Table 16 and Appendix D of the Revised Background Groundwater Quality Report: Existing Wells for Denison Mines (USA) Corp. 's White Mesa Uranium Mill Site, San Juan County, Utah, October 2007, prepared by INTERA, Inc. *Range of average historic values for On-Site Monitoring Wells as reported on April 30, 2008 (MW-1, MW-2, MW-3, MW-3A, MW-4, MW-5, MW-11, MW-12, MW-14, MW-15, MW-17, MW-18, MW-19, MW-20, MW-22, MW-23, MW-24, MW-25, MW-26, MW-27, MW-28, MW-29, MW-30, MW-31 and MW-32) Table 2D Detected Constituents and Comparison to Historic Values and Mill Site Monitorin:!l Wells Entrance Spring Range of Average Constituent 2009 2010 2011 May 2011 July 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 Historic Values for Monitoring Wells1 * Maior Ions me/I) Carbonate <I <I <I 7 <I <I <I <I <I <I <I <I <I <I <I <l - Bicarbonate 292 332 270 299 298 292 247 324 340 402 236 480 242 260 308 321 - Calcium 90,8 96.5 88.8 96.6 105 121 103 131 131 129 116 155 144 138 123 144 - Chloride 60 63 49 64 78 139 76.8 75.6 75 84.6 75.9 104 76.7 90.3 91.8 110 ND-213 Fluoride 0.7 0.73 0.58 0.58 0.64 0.71 <I 0.606 0.668 0 615 0.454 0 912 0 638 0 625 0,8 0.794 ND-1.3 Magnesium 26,6 28.9 26.4 28.4 32 7 43 34 9 33 3 38.6 36.4 42.4 48.0 45 I 47.7 44.8 48.5 - Nitrogen-Ammonia 0.28 <0.05 <0.05 0.32 <0.05 <0.05 <0.05 0.202 0.0962 0.247 0.102 0.1 68 <0.05 <0.05 <O 2 <0.20 - Nitrogen-Nitrate I 4 I 1.4 05 2.8 2 06 3.65 <0.1 0.403 <I 2.34 <I 2.46 1.55 0.2 0.237 - Potassium 2.4 2.74 2.6 29 2 3.83 1.56 I 62 <I 0 3.88 3 64 4,66 4.31 4.04 4.5 50 - Sodium 61.4 62.7 62.5 68.6 77_4 127 78 9 93 I 90.8 90.3 96 126 108 98.3 100 114 - Sulfate 178 179 166 171 171 394 219 210 245 187 243 160 317 362 323 393 ND-3455 TDS 605 661 571 582 660 828 688 680 828 752 820 892 964 888 904 1080 1019-5548 Metals ( ue/1) Arsenic <5 <5 <5 <5 <5 <5 <5 5 02 <5 9.16 <5 8,94 <5 <5 3 I 5.3 - Beryllium <0.5 <0.5 <05 <0.5 <O 5 <O 5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 - Cadmium <0,5 <0.5 <0.5 <0,5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <02 <0.2 ND-4.78 Chromium <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 5.5 4.1 - Cobalt <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 I 2 - Coooer <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <1.0 <1.0 - Iron <30 <30 37 55 34 162 37.2 295 94.4 371 <30 453 <30 <30 390 50 ND-7942 Lead <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <I 0 <1.0 <10 <1.0 <1.0 <1.0 <0.5 <0.5 - Manganese 54 II 47 84 <10 259 16 I 367 210 913 405 587 56 3 27.2 629 903 ND-34,550 Mercury <0.5 <0.5 <O 5 <0,5 <0.5 <O 5 <O 5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0,5 <0.2 <0.15 - Molybdenum <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 14.30 <10 <10 1.8 1.7 - Nickel <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 1.0 2.1 ND-61 Selenium 12,1 92 13 I 5.5 13.2 11.2 15.9 <5 <5 <5 15.3 <5 15 13 6 5.2 69 ND-106.5 Silver <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <0.5 <O 5 - Thallium <0.5 <0.5 <0.5 <0.5 <O 5 <O 5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <02 <0.2 - Tin <100 <100 <100 <100 <100 <100 <100 <JOO <100 <100 <100 <JOO <100 <100 <20 20 - Uranium 15.2 17.8 18.8 15.3 21.1 38.8 23.2 36 22 0 14.6 27 6 70.1 24.7 36.1 17.5 20.9 ND-59,8 Vanadium <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 <15 3.4 3.2 - Zinc <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 - Table 2D Detected Constituents and Comparison to Historic Values and Mill Site Monitoring Wells Entrance Spring Range of Average Constituent 2009 2010 2011 May 2011 July 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 Historic Values for Monitoring Wells1 * Radiolo2ics (pCi/1) Gross Alpha 0.9 <0.5 1.5 1.6 0.5 2,3 <] 3.05 <I 2.53 <I 2.63 <I <I <I <I I ND-36 VOGS (u IL) Acetone <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <IO <IO - Benzene <1.0 <1.0 <1.0 <1.0 <LO <LO <LO <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 - Carbon tetrachloride <1.0 <1.0 <1.0 <1.0 <1.0 <LO <1.0 <1 ,0 <1,0 <1,0 <1.0 <1 ,0 <1 ,0 <1.0 <1.0 <1.0 - Chloroform <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 - Ch loromethane <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1 0 <1.0 <1.0 <1 0 <1.0 - MEK <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <10 <1.0 - Methvlene Chloride <1.0 <1 0 <1.0 <1.0 <10 <10 <1 0 <LO <1.0 <LO <1.0 <10 <1.0 <1.0 <2.0 <2.0 - Naphthalene <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1 0 <1.0 <1.0 <1.0 <1 0 - Tetrahvdrofuran <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <10 <1.0 <1.0 <I 0 <1.0 - Toluene <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1.32 <1.0 <1.0 13.1 <1.0 5,59 <1.0 <1.0 <1.0 <1.0 - Xylenes <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 - 1 From Figure 3, Table IO and Appendix B of the Revised Addendum, Background Groundwater Quality Report: New Wells for Denison Mines (USA) Corp 's White Mesa Mill Site, San Juan County, Utah, April 30, 2008, prepared by INTERA, Inc. and Table 16 and Appendix D of the Revised Background Groundwater Quality Report: Existing Wells for Denison Mines (USA) Corp. 's White Mesa Uranium Mill Site, San Juan County, Utah, October 2007, prepared by INTERA, Inc. *Range ofaverage historic values for On-Site Monitoring Wells as reported on April 30, 2008 (MW-1, MW-2, MW-3, MW-3A, MW-4, MW-5, MW-11, MW-12, MW-14, MW-15, MW-17, MW-18, MW-19, MW-20, MW-22, MW-23, MW-24, MW-25, MW-26, MW-27, MW-28, MW-29, MW-30, MW-31 and MW-32) INDEX OF TABS Tab A Seeps and Springs Field Data Sheets and Photographic Documentation Tab B Field Parameter Measurement Data Tab C Survey Data and Contour Map Tab D Analytical Laboratory Data Tab E Quality Assurance and Data Validation Tables E-1 Holding Time Evaluation E-2 Laboratory Receipt Temperature Check E-3 Analytical Method Check E-4 Reporting Limit Evaluation E-5 Trip Blank Evaluation E-6 QA/QC Evaluation for Sample Duplicates E-7 Radiologic Counting Error E-8 Laboratory Matrix QC Evaluation Tab F CSV Transmittal Tab A Seeps and Springs Field Data Sheets and Photographic Documentation Field Data Record-Seeps and Springs Sampling Seep or Spring Location: _G____;o=--H....:.o....:.n_v).:.,__o...:.o..:..J-_5~p_r_1·t1-cdc+------------- Date For Initial Sampling Visit: 5 / I t, / 0 ~3 Sample Collected: Iii Yes □ No Time: 10 -:....:...!~------- Date For Second Sampling Visit: ________ Time: _________ _ Sample Collected:-□ Yes □ No Date For Third Sampling ~sit: ________ Time: _________ _ Sample Collected: □ Yes □ No Date For Fourth Sampling Visit: ________ Time: _________ _ Sample Collected: □ Yes □ No Sampling Personnel: -j;g 0 ocd:le1J:J::J I D.«11 L,pn, DtvM Weather Conditions at Time of Sampling: .S 1.L1111 ----"1\------------- E s tim ate d Seep or Spring Flow Rate: _.:....I --=-0-=-D----'C,e::..__P.t1---=--------------- Field Parameter Measurements: -pH Vf& -Temperature (0C) _ _._,5""',c...::b'--L.-__________ _ -Conductivity µMHOC/cm _1;;_1;;_1.i_a. _________ _ -Turbidity (NTU) (if measured)_=l._0 _______ _ -Redox Potential Eh (mV) (if measured) _lg.:...,... ____ _ -~O? "12.,!) - Analytical Parameters/Sample Collection Method: Parameter Sample Taken Filtered Samoline: Method Direct Peristaltic Ladle Other Pump ( describe in notes section) voes ~Yes □No □Yes ~No □ [j □ □ Metals [11 Yes □No [J.Yes □No □ Ill □ □ Nutrients i, Yes □No □Yes ~No □ ~ D □ Other Non ~Yes □No □Yes ~No □ l1l D D Radiologies Gross Alpha ~Yes □No !jl Yes □No □ " D □ QC Samples Associated with this Location: □ Rinsate Blank □ Duplicate Duplicate Sample Name: ___________ _ Notes: Arr ;0cd. no s.ae 10 l'l tor-50m p 1,·,,j event . S.t.rople Field Data Record-Seeps and Springs Sampling Date For Initial Sampling Visit: 5 / 1 t, 0 :;l.3 Sample Collected: lil Yes □ No Time:_~0~9------=5 _5._ ___ _ Date For Second Sampling Visit: ________ Time: _________ _ Sample Collected:□ Yes □ No Date For Th_ird Sampling Visit: ________ Time: _________ _ Sample Collected: □ Yes □ No Date For Fourth Sampling Visit: ________ Time: _________ _ Sample Collected:□ Yes □ No Sampling Personnel: -f..nord:lelf:~, Ddo Lpn, DWM RC . Weather Conditions at Time of Sampling:_.,~=,,------------- Estimated Seep or Spring Flow Rate: Field Parameter Measurements: -pH 7.l.O -Temperature (°C) __._,.........._....__ ___________ _ -Conductivity µMHOC/cm _1_3..z'-...,__ ________ _ -Turbidity (NTU) (if measured)_.,_,_ ________ _ -Redox Potential Eh (mV) (if measured) ~'l~"~----- O0 1. 'IZ.J Analytical Parameters/Sample Collection Method: Parameter Sample Tak.en Filtered Samoline Method voes Ef1 Yes □No □Yes ~No Metals 111 Yes oNo ~Yes □No Nutrients c, Yes □No □Yes ~No Other Non i, Yes □No □Yes ~No Radiologies Gross Alpha ~Yes oNo flJ Yes □No QC Samples Associated with this Location: o Rinsate Blank □ Duplicate Direct Peristaltic Pump ~ □ □ Ii! Iii □ ~ D D Iii Duplicate Sample Name: ___________ _ Notes: ; 0130 . -r.,.,,,,cr-Dec,i .fo.c ~mp1:,,j evc11 ~. s.,_,vipJes. c.ollutlcl 11,t ~ Ladle Other ( describe in notes s.ection) □ D □ □ □ □ □ D □ D r . Fie,u Data Record-Seeps and Springs Samptlng Seep or Spring Location: --=~=~..=.....a'---5_.__r_,n-______________ _ Date For Initial Sampling Visit: 5/1 fe>/ ).,0~3 Sample Collected: (jj Yes □ No Time: oq 5 Date For Second Sampling Visit: ________ Time: ________ _ Sample Collected: □ Yes □ No Date For Third Sampling Visit: ________ Time: _________ _ Sample Collected: □ Yes □ No Date For Fourth Sampling Visit: ________ Time: _________ _ Sample Collected:□ Yes □ No Sampling Personnel: ~,=.i,:J.,_.1:""':.J'-'--l---l-'~D~•=.,_o~L~'1-me~a ..... , _________ _ Weather Conditions at Time of Sampling: _______________ _ Estimated Seep or Spring Flow Rate: _________________ _ Field Parameter Measurements: -pH .~o -Temperature (0 C) -~•-=~-'---". ~,,__,__ __________ _ -Conductivity µMHOC/cm ~''3-'--">--------- -Turbidity (NTU) (if measured)__,,,o'--------------- -Redox Potential Eh (mV) (if measured) ~3~~-ff _____ _ 00 )', '12-~ Analytical Parameters/Sample Collection Method: Parameter Sample Taken Filtered Sampling Method Direct Peristaltic Ladle Other Pump (describe in notes section) voes ~ Yes □No □Yes ~No tjl Cf □ D Metals ~ Yes □No r,Yes □No □ '1JJ □ □ Nutrients rjl Yes □No □Yes ~No ~ c:I □ □ Other Non ~ Yes □No □Yes MNo t1, a □ D Radiologies Gross Alpha !]!Yes □No ljJYes □No □ iJI □ □ QC Samples Associated with this Location: □ Rinsate Blank □ Duplicate Duplicate Sample Name: ___________ _ Notes:.----"LLL-;,_,_,_,_......._..,_._,___,__.µ.,.._-----><::..L..-:~...,_,..___,'-----r.,;..:.=ft=n=cr---1---'--'0'---'eC...C~......::~-'---'------=-----'-------'---'-=--\~=...:rl=--=S::...:.t_~_f _ ftic <..0Mp l0'"j evcl) • ~t.P'.lple!-ed 11-t O't3S Field Data Record-Seeps and Springs Sampling Seep or Spring Location: r,'t1 Date For Initial Sampling Visit: 5 / I to O ;>..3 Time: OR30 Sample Collected: JjJ Yes □ No Date For Second Sampling Visit: ________ Time: _________ _ Sample Collected: □ Yes □ No Date For Third Sampling Visit: ________ Time: _________ _ Sample Collected: □ Yes □ No -Date For Fourth Sampling Visit: ________ Time: _________ _ Sample Collected: □ Yes □ No Sampling Personnel: -1'ADrn:dJ,1F4:_:j I D«.eo L~f''H'I e ·D'-,o>M f<.(, Weather Conditions at Time of Sampling:_,,,.-'-4.------------- Estimated Seep or Spring Flow Rate: ___,,,c..,.=::.=-.,.,_,___.. ____________ _ Field Parameter Measurements: -pH c.. 75 -Temperature (0 C) _l::..,r___,_,O;::._._ ___________ _ -Conductivity µMHOC/cm _._._-'-'o"------------ -Turbidity (NTU) (ifmeasured)----=2.=·='l _______ _ -Redox Potential Eh (mV) (if measured) 'i2· -----'=------00/. i::.t.2. Analytical Parameters/Sample Collection Method: Parameter Sample Taken Filtered Samplin2 Method voes fi1Yes □No □Yes CS No Metals [SI Yes □No r,.Yes □No • Nutrients ~ Yes □No □Yes ~No Other Non ~ Yes □No □Yes ~No Radiolocics Gross Alpha Ci Yes □No !ii Yes □No QC Samples Associated with this Location: o Rinsate Blank □ Duplicate Direct Peristaltic Pump □ [j □ III □ Ill D ~ □ Ii Duplicate Sample Name: ------------ Ladle Other (describe in notes section) □ □ □ □ □ □ □ □ □ □ l .d Data Record-Seeps and Springs SL -~piing Date For Initial Sampling Visit: 3[:30/20,x3 Sample Collected: ~ Yes □ No Time: 080 0 Date For Second Sampling Visit: ___ x~ra=---Time: __ -&1.__._,fA.,_ _____ _ Sample Collected:□ Yes □ No Date For Third Sampling Visit: __ ~/J~1A~---Time: __ ~.1'1_,0'--'-~'------ Sample Collected: □ Yes □ No Date For Fourth Sampling Visit: __ _,___/lli.....,~ ____ Time: __ M____,___,~,,....'.b:~----- Sample Collected: □ Yes □ No Sampling Personnel: ~nee lla u; ,Lj , 0 ,e:((\ L!lM~/l Weather Conditions at Time of Sampling:~R-w:,,._._,t~-~C.~)o_,-J_f'--r----------- Estimated Seep or Spring Flow Rate: _..0~,~;}.5'-=--_...,.(,-,_,P ....... z.!l'---+----------- Field Parameter Measurements: -pH -Temperature (0C) _.._._..~------------ -Conductivity µMH0C/cm ~1-1-D-7 ________ _ -Turbidity (NTU) (if measured)__,,= . ..,.0,__ ______ _ -Redox Potential Eh (mV) (if measured) 'iLI G:, ~-------oo Lf l.b Analytical Parameters/Sample Collection Method: Parameter Sample Taken Filtered Sampling Meth.od voes ~Yes oNo □Yes ~No Metals lil!Yes □No liClYes □No Nutrients ~ Yes □No □ Yes ~No Other Non ~Yes □No □Yes ~No Radiologies Gross Alpha Ill.Yes □No f;lJ Yes □No QC Samples Associated with this Location: D Rinsate Blank □ Duplicate Direct Peristaltic Pump □ ~ □ Ill □ ljl D Bl D (JI Duplicate Sample Name: ___________ _ Ladle Other ( describe in 110~ section) □ □ □ □ □ □ □ □ □ □ a a ~ I Field Data Record-Seeps and Springs Sampling SeeporSpringLocation: Gor<l\l C.qo~an Seep Date For Initial Sampling Visit: 3/~9 /,._o'l.3 Time: _ _,l'-'-1,_,__,.___ _____ _ Sample Collected: □ Yes f!i No Date For Second Sampling Visit: .5/ trJ~J.J Sample Collected: □ Yes IJ No Date For Third Sampling Visit: 7 /:2,J/.:z.o.'23 Sample Collected: □ Yes □ No Date For Fourth Sampling Visit: 11/ 13/~"3 Sample Collected:□ Yes □ No Sampling Personnel: Time: l"i03 Time: I:>.~\ Weather Conditions at Time of Sampling: _______________ _ Estimated Seep or Spring Flow Rate: _________________ _ Field Parameter Measurements: -pH -Temperature (0 C) ______________ _ -Conductivity µMHOC/cm ___________ _ -Turbidity (NTU) (if measured) _________ _ -Redox Potential Eh (mV) (if measured) ______ _ Analytical Parameters/Sample Collection Method: Parameter Sample Taken Filtered Samplin2 Method Direct Peristaltic Ladle Other Pump ( describe in notes section) voes □Yes □No □Yes □No □ □ □ □ Metals □Yes □No □Yes □No □ □ D □ Nutrients □Yes □No □Yes □No □ □ D D Other Non □Yes □No □Yes □No □ □ □ D Radiologies Gross Alpha □Yes □No □Yes □No □ D □ D QC Samples Associated with this Location: □ Rinsate Blank □ Duplicate Duplicate Sample Name: ___________ _ _) Field Data Record-Seeps and Springs Sampling Seep or Spring Location: -~(~,~o~r~"-"'~l ___.S...._pr~r-~,' ..... ~------------- Date For Initial Sampling Visit: 3/,;z.t,t/c?:9;t~ Sample Collected:□ Yes ijl No Date For Second Sampling Visit: s/1 r,,/ .10.?-3 Sample Collected: □ Yes rgi No Date For Third Sampling Visit: 7/~,/~~3 Sample Collected:□ Yes □ No Date For Fourth Sampling Visit: l~/~d-.3 Sample Collected:□ Yes □ No Sampling Personnel: Time: :2.) ---'-"----'--'---""L__------ Time: 13'-t Time: \=ti.to Time: 1'-fl -----'--i'-------- Weather Conditions at Time of Sampling: _______________ _ Estimated Seep or Spring Flow Rate: ________________ _ Field Parameter Measurements: -pH -Temperature (°C) ----------------Conductivity µMHOC/cm -------------Turbidity (NTU) (if measured) _________ _ -Redox Potential Eh (mV) (if measured) ------- Analytical Parameters/Sample Collection Method: Parameter Sample Taken Filtered Samplin2 Method Direct Peristaltic Ladle Other Pump ( describe in notes section) voes □Yes □ No □Yes □No □ □ □ □ Metals □ Yes □ No □Yes □No □ □ □ □ Nutrients □Yes □No □Yes □No □ □ □ □ Other Non □Yes □No □ Yes □No □ □ □ □ Radiologies Gross Alpha □Yes □No □ Yes □No □ □ □ □ QC Samples Associated with this Location: □ Rinsate Blank □ Duplicate Duplicate Sample Name: ------------ ~ r ~ ~ ,. ' ~ . .., .:~ .. ~ .. ·,,- r , r" ' TabB Field Parameter Measurement Data Field _11_arameters - Date Location Sampled pH Conductivity Turbidity Redox Temperature DO Cottonwood Spring 5/16/2023 7.40 1742 1.0 384 15.67 42.0 Entrance Seep 5/16/2023 6.75 1790 2.3 423 13.09 62.2 Back Spring (Duplicate of Ruin 5/16/2023 7.20 1365 0 348 13.39 92.3 Spring) Ruin Spring 5/16/2023 7.20 1365 0 348 13.39 92.3 Westwater Seep 3/30/2023 6.80 1707 28.0 446 9.47 41.6 TabC Survey Data and Contour Map Seeps and Springs Survey Locations Mid-December 2009 Survey Location Latitude (N) Longitude (W) Elevation FROG POND 37°33'03.5358" 109°29'04.9552" 5589.56 CORRAL CANYON 37°33'07.1392" 109°29'12.3907" 5623.97 ENTRANCE SPRING 37°32'01.6487" 109°29'33.7005" 5559.71 CORRAL SPRINGS 37°29'37.9192" 109°29'35.8201" 5383.35 RUIN SPRING 37°30'06.0448" 109°31 '23.4300" 5380.03 COTTONWOOD 37°3 l '21.7002" 109°32'14.7923" 5234.33 WESTWATER 37°31 '58.5020" 109°31'25.7345" 5468.23 Verification Survey July 2010 RUIN SPRING 3 7°30'06.0456" 109°3 1 '23 .4181 " 5380.01 COTTONWOOD 3 7°3 l '21.6987" 109°32'14.7927" 5234.27 WESTWATER 37°31'58.5013" 109°31'25.7357" 5468.32 @ MW-418 ,¢-5509 estimated dry area perched monitoring well installed April, 2023 showing elevation in feet amsl TW4-43 temporary perched monitoring 3::E5523 well installed September, 2021 showing elevation in feet amsl TWN-20 Cls564 TW4-42 ¢5523 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 amsl TW4-12 h d • • II 0 5567 temporary perc e monitoring we showing elevation in feet amsl TWN-7 t h d . . . <>5570 emporary perc e nitrate monitoring well showing elevation in feet amsl PIEZ-1 perched piezometer showing Q 5588 elevallon In feet amsl RUIN SPRING c!, 5380 seep or spring showing elevation in feet amsl ~ 1 mile \ \ \ \ \ \· \ \ \ \ \ " ~i.,n \ l!WN•15 '\ ' ..... '\ -~J.:.l>lll "-"TWW10 .....,i-1 '-• \.i.a "r \WN:,011 TIN!#f !!$lift Pmi-ol-, •b"'1. t.tw',i, - ~ co ''!&°"~ ~2 6. - 55'10 &/00 ·::~ 'RRAJ...SP~ ~~ ,..:.... ., •• ·e, ➔-·-....... ~. ~l-C Ml«t)l'' ~:, -'':Ri?' _,._ ·...r;,+s;• NOTES: MW-4, MW-26, TW4-1, TW4-2, TW4-4, TW4-11, TW4-19, TW4-21, TW4-37, TW4-39, TW4-40 and TW4-41 are chloroform pumping wells; TW4-22, TW4-24, TW4-25 and TWN-2 are nitrate pumping wells; TW4-11 water level is below the base of the Burro Canyon Formation HYDRO GED CHEM.INC. KRIGED 3rd QUARTER, 2023 WATER LEVELS (Dr-series piezometer water levels not included) WHITE MESA SITE APPROVED DATE REFERENCE H:/718000/nov23/ seeps_springs/Uwl0923nodr.srf FIGURE C-1 @ MW-41B -¢-5509 estimated dry area perched monitoring well installed April, 2023 showing elevation in feet amsl TW4-43 temporary perched monitoring ~5523 well installed September, 2021 showing elevation in feet amsl TWN-20 C 5564 TW4-42 ¢5523 temporary perched nitrate monitoring well installed April, 2021 showing elevation in feet amsl temporary perched monitoring well installed April, 2019 showing elevation in feet amsl M;-~504 perched monitoring well showing elevation in feet amsl TW4-12 h d . . II 0 5567 temporary perc e monitoring we showing elevation in feet amsl TWN-7 h d . . . <>5570 temporary perc e nitrate monitoring well showing elevation in feet amsl PIEZ-1 perched piezometer showing Q 5588 elevation in feet amsl RUIN SPRING c!, 5380 seep or spring showing elevation in feet amsl \ ' \ ' ' ... .... l:>R-10 DR-11 . '• 9'al Sifeo .... ab.,T".d ~-15 .... b«,J.~nod iwwtq. -.. ~'1P"9tl "r 'f'N-09 l'WN-fl ~~· PIEZ-0~ MW-19 .... C TWif.1;~~. • ~, ss20 -::$J,2o ~ ...... 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, 1W4-25 and lWN-2 are nitrate pumpin.!1_ wells; TW4-11 water level Is below the base of the Burro Canyon Formation HYDRO GED CHEM.INC. KRIGED 3rd QUARTER, 2023 WATER LEVELS WHITE MESA SITE APPROVED DATE REFERENCE H:/718000/nov23/ seeps_springs/Uwl0923dr.srf FIGURE C-2 TabD Analytical Laboratory Data 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: Ruin Spring Matrix: Water Date Sampled: 5/16/23 9:35 Calculations Anions, Total Cation/Anion Balance Cations, Total TDS Ratio TDS, Calculated Inoq;anic Alkalinity-Bicarbonate (as CaCO3) Alkalinity-Carbonate (as CaCO3) Ammonia as N Chloride Fluoride Nitrate+ Nitrite, Total, as N Sulfate Total Dissolved Solids (TDS) l\ktals, Dissoh cd Arsenic, Dissolved Beryllium, Dissolved Cadmium, Dissolved Calcium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Magnesium, Dissolved Manganese, Dissolved Mercury, Dissolved Molybdenum, Dissolved Nickel, Dissolved Potassium, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved Tin, Dissolved Uranium, Dissolved Vanadium, Dissolved 13 .7 0.8 13.9 2.39 881 191 < 1.0 <0.20 18.3 0.364 1.20 448 2110 < 0.0005 < 0.0005 < 0.0002 136 0.0024 < 0.0005 < 0.0010 <0.02 < 0.0005 30.3 0.0024 0.00028 0.0171 0.0013 3.0 0.0123 < 0.0005 105 < 0.0002 <0.02 0.0093 0.0009 Project Name: Annual Seeos & Sorinas 2023 www.ChemtechFord.com Certificate of Analysis Units meq/L % meq/L None mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Minimum Reporting Limit 5 1.0 1.0 0.20 1.00 0.100 0.100 10.0 20 0.0005 0.0005 0.0002 0.2 0.0005 0.0005 0.0010 0.02 0.0005 0.2 0.0005 0.00015 0.0005 0.0005 0.5 0.0005 0.0005 0.5 0.0002 0.02 0.0005 0.0005 PO#: Receipt: 5/18/23 11:00@ -0.7 °C Date Reported: 6/7/2023 Project Name: Annual Seeps & Springs 2023 Sampled By: Tanner Holliday Method SM 1030 E SM 1030 E SM 1030 E SM 2340 B SM 2540 C SM 2320 B SM 2320 B EPA350.l EPA300.0 EPA300.0 EPA353.2 EPA300.0 SM 2540 C EPA200.8 EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.7 EPA200.8 EPA245.l EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.7 EPA200.8 EPA200.8 CtF WO#: 23E1617 Preparation Date/Time 5/26/23 5/26/23 5/26/23 5/26/23 5/26/23 5/23/23 5/23/23 5/26/23 5/18/23 5/18/23 5/23/23 5/22/23 5/19/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22123 5/22/23 5/19/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5122/23 5/22/23 Lab ID: 23El617-02 Analysis Date/Time 5/26/23 5/26/23 5/26/23 5/26/23 5/26/23 5/23/23 5/23/23 5/26/23 5/19123 5/19/23 5/23/23 5/22/23 5/19/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 Flag{s) A-01 Page 5 of 28 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: Ruin Spring (cont.) Matrix: Water Date Sampled: 5/16/23 9:35 Metals, Uissol\Cd (cont.) Zinc, Dissolved \olatile Organic Compounds Acetone Benzene Carbon Tetrachloride Chloroform Chloromethane Methyl Ethyl Ketone Methylene Chloride Naphthalene Tetrahydrofuran Toluene Xylenes, total < 0.0100 < 10.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 <2.0 < 1.0 < 1.0 < 1.0 < 1.0 Project Name: Annual Seeps & SorimIs 2023 www.ChemtechFord.com mg/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 0.0100 10.0 1.0 1.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0 1.0 PO#: Receipt: 5/18/23 11:00@-0.7 ·c Date Reported: 6/7/2023 Project Name: Annual Seeps & Springs 2023 Sampled By: Tanner Holliday Method EPA200.8 EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A CtF WO#: 23E1617 Preparation Date/Time 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 Lab ID: 23El617-02 Analysis Date/Time 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 Flag(s) J-LOW-L Page 6 of 28 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company : Address: Contact: Energy Fuels Resources (USA), Inc. 6425 S. Highway 191 Blanding, Utah 84511 Mr. Garrin Palmer Project: Analytical forAnnual Seeps & Springs 2023 Parameter Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Ruin Spring 622849002 Water 16-MAY-23 09:35 19-MAY-23 Client Qualifier Result Uncertainty Rad Gas Flow Proportional Counting GFPC, Total Alpha Radium, Liquid "As Received" Gross Radium Alpha U 0.0580 +/-0.207 The following Analytical Methods were performed: Method Description EPA903.0 Surrogate/Tracer Recovery Test MDC 0.861 Barium Carrier GFPC, Total Alpha Radium, Liquid "As Received" Notes: Counting Uncertainty is calculated at the 68% confidence level (I-sigma). RL 1.00 Project: Client ID: Report Date: June 18, 2023 DNMI00106 DNMIO0l Units PF DF Analyst Date Time Batch Method pCi/L JEI 06/07/23 1155 2435523 Analyst Comments Result Nominal Recovery% Acceptable Limits 104 (25%-125%) SRL = Sample Reporting Limit. For metals analysis only. When the sample is U qualified and ND, the SRL column reports the value which is the greater of either the adjusted MDL or the CRDL. Column headers are defined as follows: DF: Dilution Factor Le/LC: Critical Level DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Page 11 of 15 SDG: 622849 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: Cottonwood Spring Matrix: Water Date Sampled: 5/16/23 10:25 Calculations Anions, Total Cation/ Anion Balance Cations, Total TDS Ratio TDS, Calculated Inorganic Alkalinity -Bicarbonate (as CaCO3) Alkalinity -Carbonate (as CaCO3) Ammonia as N Chloride Fluoride Nitrate+ Nitrite, Total, as N Sulfate Total Dissolved Solids (TDS) Metals, Uissolud Arsenic, Dissolved Beryllium, Dissolved Cadmium, Dissolved Calcium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Magnesium, Dissolved Manganese, Dissolved Mercury, Dissolved Molybdenum, Dissolved Nickel, Dissolved Potassium, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved Tin, Dissolved Uranium, Dissolved Vanadium, Dissolved Result 17.3 -3.0 16.3 1.31 1070 270 < 1.0 <0.20 127 0.249 <0.100 401 1390 0.0023 < 0.0005 < 0.0002 99.2 0.0031 < 0.0005 < 0.0010 < 0.02 < 0.0005 27.5 0.0025 < 0.00015 0.0013 0.0009 5.6 0.0047 < 0.0005 206 < 0.0002 0.02 0.0102 0.0016 Project Name: Annual Seeos & Sorinas 2023 www.ChemtechFord.com Certificate of Analysis Units meq/L % meq/L None mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Minimum Reporting Limit 5 1.0 1.0 0.20 1.00 0.100 0.100 10.0 20 0.0005 0.0005 0.0002 0.2 0.0005 0.0005 0.0010 0.02 0.0005 0.2 0.0005 0.00015 0.0005 0.0005 0.5 0.0005 0.0005 0.5 0.0002 0.02 0.0005 0.0005 PO#: Receipt: 5/18/23 11:00@ -0.7 °C Date Reported: 6/7/2023 Project Name: Annual Seeps & Springs 2023 Sampled By: Tanner Holliday Method SM 1030 E SM 1030 E SM 1030 E SM 2340 B SM 2540 C SM 2320 B SM 2320 B EPA350.l EPA300.0 EPA300.0 EPA353.2 EPA300.0 SM 2540 C EPA200.8 EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.7 EPA200.8 EPA245.l EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.7 EPA200.8 EPA200.8 CtF WO#: 23E1617 Preparation Date/Time 5/26/23 5/26/23 5/26/23 5/26/23 5/26/23 5/23/23 5/23/23 5/26/23 5/22/23 5/18/23 5/23/23 5/22/23 5/19/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/19/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 Lab ID: 23E1617-03 Analysis Date/Time 5/26/23 5/26/23 5/26/23 5/26/23 5/26/23 5/23/23 5/23/23 5/26/23 5/22/23 5/19/23 5/23/23' 5/22/23 5/19/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 Page 7 of 28 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: Cottonwood Spring (cont.) Matrix: Water Date Sampled: 5/16/23 10:25 Result l\ktals. DissolHcl (cont.) Zinc, Dissolved < 0.0100 \ olatile Organic Compounds Acetone < 10.0 Benzene < 1.0 Carbon Tetrachloride < 1.0 Chloroform < 1.0 Chloromcthane < 1.0 Methyl Ethyl Ketone < 1.0 Methylene Chloride <2.0 Naphthalene < 1.0 Tetrahydrofuran < 1.0 Toluene < 1.0 Xylenes, total < 1.0 Project Name: Annual Seeos & Sorinqs 2023 www.ChemtechFord.com Units mg/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 0.0100 10.0 1.0 1.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0 1.0 PO#: Receipt: 5/18/23 11:00 @-0.7 °C Date Reported: 6/7/2023 Project Name: Annual Seeps & Springs 2023 Sampled By: Tanner Holliday Method EPA200.8 EPA 8260D /5030A EPA 82600 /5030A EPA 82600 /5030A EPA 82600 /5030A EPA 82600 /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A CtF WO#: 23E1617 Preparation Date/Time 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 Lab ID: 23El617-03 Analysis Date/Time 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 ~ J-LOW-L Page 8 of 28 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company : Address: Contact: Energy Fuels Resources (USA), Inc. 6425 S. Highway 191 Blanding, Utah 84511 Mr. Garrin Palmer Project: Analytical forAnnual Seeps & Springs 2023 Parameter Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Cottonwood Spring 622849003 Water 16-MA Y-23 10:25 19-MAY-23 Client Qualifier Result Uncertainty Rad Gas Flow Proportional Counting GFPC, Total Alpha Radium, Liquid "As Received" Gross Radium Alpha U 0.206 +/-0.238 The following Analytical Methods were performed: Method Description EPA 903.0 Surrogate/Tracer Recovery Test MDC 0.861 Barium Carrier GFPC, Total Alpha Radium, Liquid "As Received" Notes: Counting Uncertainty is calculated at the 68% confidence level (I-sigma). RL 1.00 Project: Client ID: Report Date: DNMI00106 DNMIO0l June 18, 2023 Units PF DF Analyst Date Time Batch Method pCi/L JEI 06/07/23 1155 2435523 Analyst Comments Result Nominal Recovery% Acceptable Limits 106 (25%-125%) SRL = Sample Reporting Limit. For metals analysis only. When the sample is U qualified and ND, the SRL column reports the value which is the greater of either the adjusted MDL or the CRDL. Column headers are defined as follows: DF: Dilution Factor Le/LC: Critical Level DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Page 12 of 15 SDG: 622849 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 t.ABORATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: Westwater Seep Matrix: Water Date Sampled: 3/30/23 8:00 Calculations Anions, Total Cation/ Anion Balance Cations, Total TDS Ratio TDS, Calculated Inorganic Alkalinity -Bicarbonate (as CaCO3) Alkalinity -Carbonate (as CaCO3) AmmoniaasN Chloride Fluoride Nitrate+ Nitrite, Total, as N Sulfate Total Dissolved Solids (TDS) \ll'lals. Dissoh eel Arsenic, Dissolved Beryllium, Dissolved Cadmium, Dissolved Calcium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Magnesium, Dissolved Manganese, Dissolved Mercury, Dissolved Molybdenum, Dissolved Nickel, Dissolved Potassium, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved 16.3 -0.8 16.0 1.00 1030 290 < 1.0 <0.20 49.6 0.434 <0.100 491 1030 0.0017 < 0.0005 < 0.0002 148 0.0029 0.0008 < 0.0010 0.03 < 0.0005 37.5 0.151 < 0.00015 0.0021 0.0016 1.9 0.0012 < 0.0005 128 < 0.0002 Proiect Name: Annual Seeos & Sorinqs 2023 www.ChemtechFord.com Certificate of Analysis meq/L % meq/L None mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Jllg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Minimum Reporting 1i.mi! 5 1.0 1.0 0.20 1.00 0.100 0.100 20.0 20 0.0005 0.0005 0.0002 0.2 0.0005 0.0005 0.0010 0.02 0.0005 0.2 0.0005 0.00015 0.0005 0.0005 0.5 0.0005 0.0005 0.5 0.0002 PO#: Receipt: 3/31/23 10:30 @ 1.3 ·c Date Reported: 4/20/2023 Project Name: Annual Seeps & Springs 2023 Sampled By: Tanner Holliday Method SM 1030 E SM 1030 E SM 1030 E SM 2340 B SM 2540 C SM 2320 B SM 2320 B EPA350.l EPA300.0 EPA300.0 EPA353.2 EPA300.0 SM 2540 C EPA200.8 EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.7 EPA200.8 EPA245.l EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.8 EPA200.7 EPA200.8 CtF WO#: 23C2301 Preparation Date/Time 4/12/23 4/12/23 4/12/23 4/12/23 4/14/23 3/31/23 3/31/23 4/3/23 4/4/23 4/4/23 4/10/23 4/5/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/4/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 Lab ID: 23C2301-01 Analysis Date/Time 4/12/23 4/12/23 4/12/23 4/12/23 4/14/23 3/31/23 3/31/23 4/3/23 4/4/23 4/4/23 4/10/23 4/5/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/4/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 4/3/23 Flag(s) Page 3 of 20 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-FOR0 AGOH,UOMllS Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: Westwater Seep (cont.) Matrix: Water Date Sampled: 3/30/23 8:00 Result \kt:ils. Dissnhl'cl (cont.) Tin, Dissolved <0.02 Uranium, Dissolved 0.0035 Vanadium, Dissolved 0.0014 Zinc, Dissolved < 0.0100 \ olatill' Ori,:,rnic Compounds Acetone < 10.0 Benzene < 1.0 Carbon Tetrachloride < 1.0 Chloroform < 1.0 Chloromethane < 1.0 Methyl Ethyl Ketone < 1.0 Methylene Chloride <2.0 Naphthalene < l.O Tetrahydrofuran < 1.0 Toluene < l.O Xylenes, total < l.O Proiect Name: Annual Seeos & Sorinqs 2023 www.ChemtechFord.com Units mg/L mg/L mg/L mg/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 0.02 0.0005 0.0005 0.0100 10.0 1.0 1.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0 1.0 PO#: Receipt: 3/31/23 10:30@ 1.3 •c Date Reported: 4/20/2023 Project Name: Annual Seeps & Springs 2023 Sampled By: Tanner Holliday Method EPA200.7 EPA200.8 EPA200.8 EPA200.8 EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A CtF WO#: 23C2301 Preparation Date/Time 4/3/23 4/3/23 4/3/23 4/3/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 Lab ID: 23C2301-01 Analysis Date/Time 4/3/23 4/3/23 4/3/23 4/3/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 Flag(s) Page 4 of 20 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company : Address: Energy Fuels Resources (USA), Inc. 6425 S. Highway 191 Blanding, Utah 84511 Contact: Mr. Garrin Palmer Project: Analytical forAnnual Seeps & Springs 2023 ------------Client Sample ID: Westwater Seep Sample ID: 617042001 Matrix: Ground Water Collect Date: 30-MAR-23 08:00 Receive Date: 05-APR-23 Collector: Client Parameter Qualifier Result Uncertainty MDC RL Rad Gas Flow Proportional Counting GFPC, Total Alpha Radium, Liquid "As Received" Gross Radium Alpha U 0.108 +/-0.243 0.963 1.00 The following Analytical Methods were performed: Project: Client ID: Report Date: April 28, 2023 DNMI00106 DNMIO0I Units PF DF Analyst Date Time Batch Method pCi/L HH3 04/20/23 1357 2412334 --------------------------------Method Descri tion Anal st Comments EPA903.0 Surrogate/Tracer Recovery Test Result Nominal Recovery% Acee table Limits Barium Carrier GFPC, Total Alpha Radium, Liquid "As Received" 102 (25%-125'1/o) Notes: Counting Uncertainty is calculated at the 68% confidence level (I-sigma). SRL = Sample Reporting Limit. For metals analysis only. When the sample is U qualified and ND, the SRL column reports the value which is the greater of either the adjusted MDL or the CRDL. Column headers are defined as follows: DF: Dilution Factor Le/LC: Critical Level DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Page 10 of 12 SDG: 617042 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: Entrance Spring Matrix: Water Date Sampled: 5/16/23 8:30 Calculations Anions, Total Cation/ Anion Balance Cations, Total TDS Ratio TDS, Calculated lnor~anic Alkalinity -Bicarbonate (as CaCO3) Alkalinity-Carbonate (as CaCO3) AmmoniaasN Chloride Fluoride Nitrate+ Nitrite, Total, as N Sulfate Total Dissolved Solids (TDS) l\ll'tals, Oissoh cd Arsenic, Dissolved Beryllium, Dissolved Cadmium, Dissolved Calcium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Magnesium, Dissolved Manganese, Dissolved Mercury, Dissolved Molybdenum, Dissolved Nickel, Dissolved Potassium, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved Tin, Dissolved Uranium, Dissolved Vanadium, Dissolved Result 17.7 -4.3 16.3 1.03 1050 321 < 1.0 <0.20 110 0.794 0.237 393 1080 0.0053 < 0.0005 < 0.0002 144 0.0041 0.002 < 0.0010 0.05 < 0.0005 48.5 0.903 < 0.00015 0.0017 0.0021 5.0 0.0069 <0.0005 114 < 0.0002 0.02 0.0209 0.0032 Proiect Name: Annual Seeos & Sorinas 2023 www.ChemtechFord.com Certificate of Analysis meq/L % meq/L None mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Minimum Reporting Limit 5 1.0 1.0 0.20 10.0 0.100 0.100 10.0 20 0.0005 0.0005 0.0002 0.2 0.0005 0.0005 0.0010 0.02 0.0005 0.2 0.0005 0.00015 0.0005 0.0005 0.5 0.0005 0.0005 0.5 0.0002 0.02 0.0005 0.0005 PO#: Receipt: 5/18/23 11:00@-0.7°C Date Reported: 6/7/2023 Project Name: Annual Seeps & Springs 2023 Sampled By: Tanner Holliday Method SM 1030 E SM 1030 E SM 1030E SM 2340 B SM2540 C SM 2320 B SM2320 B EPA 350.1 EPA300.0 EPA300.0 EPA353.2 EPA300.0 SM 2540 C EPA200.8 EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.7 EPA200.8 EPA245.l EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.7 EPA200.8 EPA200.8 CtF WO#: 23E1617 Preparation Date/Time 5/26/23 5/26/23 5/26/23 5/26/23 5/26/23 5/23/23 5/23/23 5/26/23 5/22/23 5/18/23 5/23/23 5/22/23 5/19/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/19/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 Lab ID: 23E1617-01 Analysis Date/Time 5/26/23 5/26/23 5/26/23 5/26/23 5/26/23 5/23/23 5/23/23 5/26/23 5/22/23 5/19/23 5/23/23 5/22/23 5/19/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 Flag(s) Page 3 of 28 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: Entrance Spring (cont.) Matrix: Water Date Sampled: 5/16/23 8:30 Result l\ktals, Dissohccl (cont.) Zinc, Dissolved <0.0100 \'olalilc Organic Compounds Acetone < 10.0 Benzene < 1.0 Carbon Tetrachloride < 1.0 Chloroform < 1.0 Chlorornethane < 1.0 Methyl Ethyl Ketone < 1.0 Methylene Chloride <2.0 Naphthalene < 1.0 Tetrahydrofuran < 1.0 Toluene < 1.0 Xylenes, total < 1.0 Project Name: Annual Seeps & Sorinqs 2023 www.ChemtechFord.com Units rng/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 0.0100 10.0 1.0 1.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0 1.0 PO#: Receipt: 5/18/23 11:00@-0.7 ·c Date Reported: 6/7/2023 Project Name: Annual Seeps & Springs 2023 Sampled By: Tanner Holliday Method EPA200.8 EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A CtF WO#: 23E1617 Preparation Date/Time 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 Lab ID: 23El617-01 Analysis Date/Time 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 J-LOW-L Page 4 of 28 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company : Address: Contact: Energy Fuels Resources (USA), Inc. 6425 S. Highway 191 Blanding, Utah 84511 Mr. Garrin Palmer Project: Analytical forAnnual Seeps & Springs 2023 Parameter Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Entrance Spring 622849001 Water 16-MAY-23 08:30 19-MAY-23 Client Qualifier Result Uncertainty Rad Gas Flow Proportional Counting GFPC, Total Alpha Radium, Liquid "As Received" Gross Radium Alpha U 0.943 +/-0.323 The following Analytical Methods were performed: Method Description EPA 903.0 Surrogate/Tracer Recovery Test MDC 0.898 Barium Carrier GFPC, Total Alpha Radium, Liquid "As Received" Notes: Counting Uncertainty is calculated at the 68% confidence level {1-sigma). RL 1.00 Project: Client ID: Report Date: DNMI00106 DNMIO0l June 18, 2023 Units PF DF Analyst Date Time Batch Method pCi/L JEI 06/07/23 1155 2435523 Analyst Comments Result Nominal Recovery% Acceptable Limits 107 (25%-125%) SRL = Sample Reporting Limit. For metals analysis only. When the sample is U qualified and ND, the SRL column reports the value which is the greater of either the adjusted MDL or the CRDL. Column headers are defined as follows: DF: Dilution Factor Le/LC: Critical Level DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Page 10 of 15 SDG: 622849 I Chemtech-Ford Laboratories 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com CHEMTECH-FORD !..AB0RATORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: Back Spring Serving the lntermountain West Since 1953 Certificate of Analysis PO#: Receipt: 5/18/23 11:00@ -0.7 ·c Date Reported: 6/7/2023 Project Name: Annual Seeps & Springs 2023 Matrix: Water Lab ID: 23E1617-04 Date Sampled: 5/16/23 10:25 Result Calculations Anions, Total 14.6 Cation/ Anion Balance -2.7 Cations, Total 13.9 TDSRatio 1.22 TDS, Calculated 926 lnoq;anic Alkalinity -Bicarbonate (as CaCO3) 190 Alkalinity -Carbonate (as CaCO3) < 1.0 AmmoniaasN <0.20 Chloride 22 .8 Fluoride 0.415 Nitrate+ Nitrite, Total, as N 1.23 Sulfate 490 Total Dissolved Solids (TDS) 1130 l\1rtals, Dissol\Ccl Arsenic, Dissolved < 0.0005 Beryllium, Dissolved < 0.0005 Cadmium, Dissolved < 0.0002 Calcium, Dissolved 136 Chromium, Dissolved 0.0021 Cobalt, Dissolved < 0.0005 Copper, Dissolved 0.0010 Iron, Dissolved 0.04 Lead, Dissolved < 0.0005 Magnesium, Dissolved 30.4 Manganese, Dissolved < 0.0005 Mercury, Dissolved < 0.00015 Molybdenum, Dissolved 0.0168 Nickel, Dissolved 0.0012 Potassium, Dissolved 3.0 Selenium, Dissolved 0.0126 Silver, Dissolved < 0.0005 Sodium, Dissolved 104 Thallium, Dissolved < 0.0002 Tin, Dissolved 0.02 Uranium, Dissolved 0.0092 Vanadium, Dissolved 0.0008 Proiect Name: Annual Seeos & Sorinas 2023 www.ChemtechFord.com Units meq/L % meq/L None mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Minimum Reporting Limit 5 1.0 1.0 0.20 1.00 0.100 0.100 10.0 20 0.0005 0.0005 0.0002 0.2 0.0005 0.0005 0.0010 0.02 0.0005 0.2 0,0005 0.00015 0.0005 0.0005 0,5 0.0005 0.0005 0.5 0.0002 0.02 0.0005 0.0005 Sampled By: Tanner Holliday Method SM 1030 E SM 1030 E SM 1030 E SM 2340 B SM 2540 C SM 2320 B SM 2320 B EPA350.l EPA300.0 EPA300.0 EPA353.2 EPA300.0 SM 2540 C EPA200,8 EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.8 EPA200.8 EPA200,7 EPA200.8 EPA200.7 EPA200.8 EPA245.l EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.8 EPA200.7 EPA200.8 EPA200.7 EPA200.8 EPA200.8 CtF WO#: 23E1617 Preparation Date/Time 5/26/23 5/26/23 5/26/23 5/26/23 5/26/23 5/23/23 5/23/23 5/26/23 5/18/23 5/18/23 5/23/23 5/22/23 5/19/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/19/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 Analysis Date/Time 5/26/23 5/26/23 5/26/23 5/26/23 5/26/23 5/23/23 5/23/23 5/26/23 5/19/23 5/19/23 5/23/23 5/22/23 5/19/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5122/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 fugOO Page 9 of 28 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 LABOAA?ORIES Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID: Back Spring (cont.) Matrix: Water Date Sampled: 5/16/23 10:25 I\INals, Dissoh eel (cont.) Zinc, Dissolved \ olalill' (>i-µ;anic Compounds Acetone Benzene Carbon Tetrachloride Chloroform Chloromethane Methyl Ethyl Ketone Methylene Chloride Naphthalene Tetrahydrofuran Toluene Xylenes, total Result <0.0100 < 10.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 <2.0 < 1.0 < 1.0 < 1.0 < 1.0 Proiect Name: Annual Seeps & Sorinqs 2023 www.ChemtechFord.com Units mg/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 0.0100 10.0 1.0 1.0 1.0 1.0 1.0 2.0 1.0 1,0 1.0 1.0 PO#: Receipt: 5/18/23 11:00 @-0.7 °C Date Reported: 6/7/2023 Project Name: Annual Seeps & Springs 2023 Sampled By: Tanner Holliday Method EPA200.8 EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A CtF WO#: 23E1617 Preparation Date/Time 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 Lab ID: 23El617-04 Analysis Date/Time 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 fu1{tl J-LOW-L Page 10 of 28 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company : Address: Contact: Energy Fuels Resources (USA), Inc. 6425 S. Highway 191 Blanding, Utah 84511 Mr. Garrin Palmer Project: Analytical forAnnual Seeps & Springs 2023 Parameter Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Back Spring 622849004 Water 16-MAY-23 09:35 19-MA Y-23 Client Qualifier Result Uncertainty Rad Gas Flow Proportional Counting GFPC, Total Alpha Radium, Liquid "As Received" Gross Radium Alpha U 0.144 +/-0.208 The following Analytical Methods were performed: Method Description EPA 903.0 Surrogate/Tracer Recovery Test MDC 0.719 Barium Carrier GFPC, Total Alpha Radium, Liquid "As Received" Notes: Counting Uncertainty is calculated at the 68% confidence level (I-sigma). RL 1.00 Project: Client ID: Report Date: June 18, 2023 DNMI00106 DNMIO0I Units PF DF Analyst Date Time Batch Method pCi/L JEI 06/07/23 1155 2435523 Analyst Comments Result Nominal Recovery¾ Acceptable Limits 105 (25%-125%) SRL = Sample Reporting Limit. For metals analysis only. When the sample is U qualified and ND, the SRL column reports the value which is the greater of either the adjusted MDL or the CRDL. Column headers are defined as follows: DF: Dilution Factor Le/LC: Critical Level DL: Detection Limit MDA: Minimum Detectable Activity MDC: Minimum Detectable Concentration PF: Prep Factor RL: Reporting Limit SQL: Sample Quantitation Limit Page 13 of 15 SDG: 622849 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-FORO :..AB0JIATORIE5 Energy Fuels Resources, Inc. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Sample ID : Trip Blank Matrix: Water Date Sampled: 3/30/23 8:00 \ ol:Jtile Or:,.:anic Compounds Acetone Benzene Carbon Tetrachloride Chloroform Chloromethane Methyl Ethyl Ketone Methylene Chloride Naphthalene Tetrahydrofuran Toluene Xylenes, total Result < 10.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 <2.0 < 1.0 < 1.0 < 1.0 < 1.0 Proiect Name: Annual Seeos & SorinQs 2023 www.ChemtechFord.com Units ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 10.0 1.0 1.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0 1.0 PO#: Receipt: 3/31/23 10:30 @ 1.3 ·c Date Reported: 4/20/2023 Project Name: Annual Seeps & Springs 2023 Sampled By: Tanner Holliday ~ EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A CtF WO#: 23C2301 Preparation Date/Time 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 Lab ID: 23C2301-02 Analysis Date/Time 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 4/4/23 ~ Page 5 of 20 ' 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: Trip Blank Matrix: Water Date Sampled: 5/16/23 8:30 Volalilc Organic Compounds Acetone Benzene Carbon Tetrachloride Chloroform Chloromethane Methyl Ethyl Ketone Methylene Chloride Naphthalene Tetrahydrofuran Toluene Xylenes, total Result < 10.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 <2.0 < 1.0 < 1.0 < 1.0 < 1.0 Proiect Name: Annual Seeps & Sorinas 2023 www.ChemtechFord.com Units ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L Certificate of Analysis Minimum Reporting Limit 10.0 1.0 1.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0 1.0 PO#: Receipt: 5/18/23 11:00@-0.7 ·c Date Reported: 6/7/2023 Project Name: Annual Seeps & Springs 2023 Sampled By: Tanner Holliday Method EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A EPA 8260D /5030A CtF WO#: 23E1617 Preparation Date/Time 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 Lab ID: 23E1617-05 Analysis Date/Time 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 5/22/23 Flag(s) J-LOW-L Page 11 of 28 9632 South 500 West CHEMTECH·FORD LABO~ATO~lcS 6/7/2023 Work Order: 23E1617 Project: Annual Seeps & Springs 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 28 Chemtech-Ford Laboratories Serving the lntermountain West Since 1953 CHEMTECH-FORD 9632 South 500 West Sandy, UT 84070 0:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Energy Fuels Resources, Inc. Project: Annual Seeps & Springs 2023 Project Manager: Tanner Holliday Laboratory ID 23E1617-01 23E1617-02 23E1617-03 23E1617-04 23E1617-05 TDS Notes: Sample Name Entrance Spring Ruin Spring Cottonwood Spring Back Spring Trip Blank Work Order Report Narrative The Total Dissolved Solids and TDS Ratio are biased high on sample 23E1617-02. The analysis could not be performed again within the holding time. The laboratory suspects carryover from a previous sample on the apparatus. The laboratory considers the TDS, Calculated result to be more accurate representation of the actual TDS for this sample. Sample Preparation All samples were prepared within method specified holding times. No preparation issues were noted. Method Blanks All blank values were within method acceptance criteria. No blank values exceeded the minimum reporting limit for any analysis in this work order. Laboratory Control Samples All laboratory control samples were within method acceptance criteria, except as noted by qualifying flags. Batch BXE 1179 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 28 CHEMTECH-FORO LAB0AA1"0RIES 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. Tanner Holliday 6425 South Highway 191 Blanding, UT 84511 Report Footnotes Abbreviations Certificate of Analysis PO#: Receipt: 5/18/23 11:00@ -0 .7 ·c Date Reported: 6/7/2023 Project Name: Annual Seeps & Springs 2023 ND= Not detected at the corresponding Minimum Reporting Limit (MRL). I mg/L = one milligram per liter or I mg/kg = one milligram per kilogram = 1 part per million. I ug/L = one microgram per liter or I ug/kg = one microgram per kilogram = 1 part per billion. I ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = I part per trillion. Flag Descriptions A-0 I = The Total Dissolved Solids and TDS Ratio are biased high. The analysis could not be performed again within the holding time. The laboratory suspects carryover from a previous sample and considers the TDS, Calculated result to be more accurate. J-LOW-L = Estimated low due to low recovery of LCS Proiect Name: Annual Seeps & Sorini:is 2023 www.ChemtechFord.com CtF WO#: 23E1617 Page 12 of 28 Address: Contact: Phone#: Email: Project Name: Project#: American West Analytical Laboratories 463 W 3600 S Salt Lake City, UT 84115 Phone# (801) 263-8686 Toll Free# (BBB) 263-<!686 6425 S. Hwy. 191 Blanding, UT 84511 Tanner Holliday (435) 678-2221 Cell#: thoWdaJ@enerc:,fu.ela:.com; KWelDe~enerlYfael9.com Annual Seeps & Springs 2023 1 P0#:2'/1.::--IU 17 Sampler Name: Tanner Holliday Date Sample ID: Sampled En.trance Spring 15/16/2023 • Ruin Spring 15/16/2023 Cottonwood Spring 5/16/2023 Back Spring 5/16/2023 TripBkank 5/16/2023 I 10 ' I ! ,, Rol.lnqultnodby:._:J JL_//_/_ 01)10 !Sia-,,,~,, -./ &17/20Z: -Tlmo PrintN.imn Tanner Hollkihv 1130 R0Hf"l\ll•ned by Onlfl. -SluMllJfft 1'1me PrinlNBmQ" fRe/;nqulshlld by, ·0~10~ Slonaturo Tirn1> Pri~Nomo R ........ &l>Odby o:uo. Sinnall.llV Timu P'rintNarnn Time Samoled 830 935 1025 935 830 R_ ecet. ·voo:""'1'\b Signatur -' PrintNnme R6telvod by: Slqnaluto P~ntNomv· R-bY, ~igMlure Pril'1Nnmo: R-bya 5aanoAU1'0 Pnnt NMIO I CHAIN OF CUSTODY All analysis will be conducted using NELAP accredlled methods and an data will be reported using AWAL's standard analyte llsts and reporting limits (POL) unless specincally requested otherwise on this Chain or Custody and'or attached documentation 23_E>c;17 AWAL Lab Semple Set# Page 1 of 1 QC Level: I Tum Around Time: Unlesso!herarn,ngemenlshavebeenmade, 'Due Dnte: 3 Standard ,igned repons will be emailed by 5:00 pm on the day they are due Include EDD: Laboratory Use Only X 0 LOCUS UPLOAD ::E "' u EXCEL is,,mptes Were 11D 11D X Field Filtered For: s~or~ivered :c -::E Dluolved Metala 1 vi ci :i ::E 't-oi 2 AmbH3ntor n ('< t ~ z For Compllance With: ~-~ c:i " ~ □ NELI\P 3 Temperature 0 [L □ RCRA i3' ('< ;:i > □ CWA ◄ Received Bmken/1.oaklng c:i ~ 0 0 C) ;:i □ SOWA (lmpropeny Seal"t) -"' 0 □ ELI\P/A2LI\ y N ... .. ai' 0 ci c:i 0 I:!. u □ NLLI\P "' 0 .. -Ul ~ 0 ('< -; □ Non-Compliance 5 ~y P,.,.eM!d N "' 0 "' u ~ ~ .. "' I:!. .. □ Other: 0 ~ " --ci" oil Q' I!' ~ 2 Q' IJ, :a u < " 0 "kedol~ ., X ,t 0 :a " IO ff N C: :s (') ~ 0 ~ ii 'G .; .; .s ('< ]! ::i 0 Ill " ~ Ul l!1. 6 Received Wllhln C: I!: ~ I:!. .e: Known Hazards 0 ., .... ti .... 0 .; z Ill • t)Times u C. N (') Ill ~ II < g & N 'o E 0 i:i t ~ iS II "' I!: ,!! Sample Comments .. en 7 w X X X X X X X X X X ff 111 I /15 t 7 w X X X X X X X X X X N /.2.. ?7 COCTapeWu: l--17 1.2. 7 o/ 1 Present on Outer Package 7 w X X X X X X X X X X y N NA 7 w X X X X X X X X X X L-JQ) /.A.i?L/ 2 Unbrofilen on Outer Package y N NA 3 w X 3 Presenl on Sample y N NA 4 Unbroken on Sample y N NA Ol,crOjlllllCI .. Between Sample Ulbols and COC Record? y N \1 YJ,,{1)__, ~o~ Date '_', 1'511,rl?_ Samuh: Bei;;eipt: uq~ ''i'in O ('-J Custody Seals Oa1D:'. \ rmo; N_ Containers Intact Dnw_ ~ CDC/Labels Linked Tlm"-~Received on Ice On1n 't;i Correct Containers T1nio· N.._COC Included C I V(p lete OK OC) ank me QC Report for Work Order (WO) -23E1617 Analyte % Rec RPO Limits RPO Max Result Source Cone Spk Value MRL OF Blank -EPA 200.7 QC Sample ID: BXE1146-BLK1 Batch: BXE 1146 Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: mg/L Calcium, Dissolved ND 0.2 1.00 Iron, Dissolved ND 0.02 1.00 Magnesium, Dissolved ND 0.2 1.00 Potassium, Dissolved ND 0.5 1.00 Sodium, Dissolved ND 0.5 1.00 Tin, Dissolved ND 0.02 1.00 LCS -EPA 200.7 QC Sample ID: BXE1146-BS1 Batch: BXEl 146 Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: mg/L Calcium, Dissolved 98.6 85 -115 10.1 10.2 0.2 1.00 Iron, Dissolved 102 85 -115 0.205 0.200 0.02 1.00 Magnesium, Dissolved 103 85 -115 10.5 10.2 0.2 1.00 Potassium, Dissolved 98.5 85 -115 9.9 10.0 0.5 1.00 Sodium, Dissolved 99.0 85 -115 9.9 10.0 0.5 1.00 Tin, Dissolved 104 85 -155 0.21 0.200 0.02 1.00 Matrix Spike -EPA 200.7 QC Sample ID: BXE1146-MS1 Batch: BXE1146 QC Source Sample: XXXXXXX-XX Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: mg/L Calcium, Dissolved 96.3 70 -130 64.5 54.7 10.2 0.2 1.00 Iron, Dissolved 100 70 -130 0.200 ND 0.200 0.02 1.00 Magnesium, Dissolved 98.0 70 -130 23.6 13.6 10.2 0.2 1.00 Potassium, Dissolved 94.9 70 -130 11.9 2.4 10.0 0.5 1.00 Sodium, Dissolved 94.9 70 -130 21.1 11.6 10.0 0.5 1.00 Tin, Dissolved 104 70 -130 0.21 0.01 0.200 0.02 1.00 QC Sample ID: BXE1146-MS2 Batch: BXE1146 QC Source Sample: 23E1617-01 Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: mg/L Calcium, Dissolved 85.1 70 -130 152 144 10.2 0.2 1.00 Iron, Dissolved 96.3 70 -130 0.243 0.050 0.200 0.02 1.00 Magnesium, Dissolved 94.0 70 -130 58.0 48.5 10.2 0.2 1.00 Potassium, Dissolved 94.2 70 -130 14.4 5.0 10.0 0.5 1.00 Sodium, Dissolved 85.1 70 -130 123 114 10.0 0.5 1.00 Tin, Dissolved 94.2 70 -130 0.21 0.02 0.200 0.02 1.00 Matrix Spike Dup -EPA 200.7 QC Sample ID: BXEl 146-MSDl Batch: BXEI 146 QC Source Sample: XXXXXXX-XX Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: mg/L Calcium, Dissolved 95.8 0.0913 70 -130 20 64.4 54.7 10.2 0.2 1.00 Iron, Dissolved 102 1.74 70 -130 20 0.203 ND 0.200 0.02 1.00 Magnesium, Dissolved 98.3 0.137 70 -130 20 23.7 13.6 10.2 0.2 1.00 Potassium, Dissolved 96.6 1.38 70 -130 20 12.0 2.4 10.0 0.5 1.00 Sodium, Dissolved 95.5 0.257 70 -130 20 21.1 11.6 10.0 0.5 1.00 Tin, Dissolved 111 6.94 70-130 20 0.22 0.01 0.200 0.02 1.00 QC Sample ID: BXEl 146-MSD2 Batch: BXE1146 QC Source Sample: 23 E 1617-01 Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: mg/L Calcium, Dissolved 77.2 0.531 70-130 20 152 144 10.2 0.2 1.00 Iron, Dissolved 91.8 3.82 70-130 20 0.234 0.050 0.200 0.02 1.00 Magnesium, Dissolved 91.0 0.517 70 -130 20 57.7 48.5 10.2 0.2 1.00 Potassium, Dissolved 93.7 0.347 70 -130 20 14.4 5.0 10.0 0.5 1.00 Sodium, Dissolved 76.1 0.735 70-130 20 122 114 10.0 0.5 1.00 CtF WO#: 23E1617 www.ChemtechFord.com Page 14 of 28 Analyte QC Sample ID: BXE1146-MSD2 Date Prepared: 05/22/2023 Tin, Dissolved CtF WO#: 23E1617 www.ChemtechFord.com QC Report for Work Order (WO) -23E1617 ¾Rec RPD Limits RPO Max Result Source Cone Matrix Spike Dup -EPA 200.7 (cont.) Batch: BXE1146 QC Source Sample: 23E1617-01 Date Analyzed: 05/22/2023 Units: mg/L 108 11.8 70 -130 20 0.24 0.02 Spk Value MRL OF 0.200 0.02 1.00 Page 15 of 28 QC Report for Work Order (WO) -23E1617 Analyte % Rec RPO Limits RPO Max Result Source Cone SpkValue MRL OF Blank -EPA 200.8 QC Sample ID: BXE1105-BLKI Batch: BXE1105 Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: mg/L Arsenic, Dissolved ND 0.0005 1.00 Beryllium, Dissolved ND 0.0005 1.00 Cadmium, Dissolved ND 0.0002 1.00 Chromium, Dissolved ND 0.0005 1.00 Cobalt, Dissolved ND 0.0005 1.00 Copper, Dissolved ND 0.0010 1.00 Lead, Dissolved ND 0.0005 1.00 Manganese, Dissolved ND 0.0005 1.00 Molybdenum, Dissolved ND 0.0005 1.00 Nickel, Dissolved ND 0.0005 1.00 Selenium, Dissolved ND 0.0005 1.00 Silver, Dissolved ND 0.0005 1.00 Thallium, Dissolved ND 0.0002 1.00 Uranium, Dissolved ND 0.0005 1.00 Vanadium, Dissolved ND 0.0005 1.00 Zinc, Dissolved ND 0.0100 1.00 LCS -EPA 200.8 QC Sample ID: BXE1105-BSI Batch: BXE1105 Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: mg/L Arsenic, Dissolved 99.4 85-115 0.040 0.0400 0.0005 1.00 Beryllium, Dissolved 99.6 85 -115 0.040 0.0400 0.0005 1.00 Cadmium, Dissolved 97.5 85-115 0.039 0.0400 0.0002 1.00 Chromium, Dissolved 101 85-115 0.040 0.0400 0.0005 1.00 Cobalt, Dissolved 97.0 85-115 0.039 0.0400 0.0005 1.00 Copper, Dissolved 95.3 85-115 0.038 0.0400 0.0010 1.00 Lead, Dissolved 98.3 85-115 0.039 0.0400 0.0005 1.00 Manganese, Dissolved 99.3 85-115 0.040 0.0400 0.0005 1.00 Molybdenum, Dissolved 97.3 85-115 0.039 0.0400 0.0005 1.00 Nickel, Dissolved 97.3 85-115 0.0389 0.0400 0.0005 1.00 Selenium, Dissolved 99.9 85-115 0.040 0.0400 0.0005 1.00 Silver, Dissolved 101 85-115 0.040 0.0400 0.0005 1.00 Thallium, Dissolved 103 85-115 0.041 0.0400 0.0002 1.00 Uranium, Dissolved 104 85-115 0.041 0.0400 0.0005 1.00 Vanadium, Dissolved 103 85-115 0.041 0.0400 0.0005 1.00 Zinc, Dissolved 97.2 85 -115 0.039 0.0400 0.0100 1.00 Matrix Spike -EPA 200.8 QC Sample ID: BXEl 105-MSl Batch: BXE 1105 QC Source Sample: 23El617-0l Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: mg/L Arsenic, Dissolved 106 70 -130 0.048 0.005 0.0400 0.0005 1.00 Beryllium, Dissolved 97.9 70 -130 0.039 0.00007 0.0400 0.0005 1.00 Cadmium, Dissolved 95.3 70 -130 0.038 0.00008 0.0400 0.0002 1.00 Chromium, Dissolved 94.8 70 -130 0.042 0.004 0.0400 0.0005 1.00 Cobalt, Dissolved 90.1 70-130 0.038 0.002 0.0400 0.0005 1.00 Copper, Dissolved 87.0 70-130 0.036 0.0009 0.0400 0.0010 1.00 Lead, Dissolved 93.6 70-130 0.037 ND 0.0400 0.0005 1.00 Manganese, Dissolved 54.6 70 -130 0.925 0.903 0.0400 0.0005 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. Molybdenum, Dissolved 103 70-130 0.043 0.002 0.0400 0.0005 1.00 CtF WO#: 23E1617 www.ChemtechFord.com Page 16 of 28 Analyte QC Sample ID: BXE1105-MS1 Date Prepared: 05/22/2023 Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Thallium, Dissolved Uranium, Dissolved Vanadium, Dissolved Zinc, Dissolved QC Sample ID: BXE1105-MS2 Date Prepared: 05/22/2023 Arsenic, Dissolved Beryllium, Dissolved Cadmium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Lead, Dissolved Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Thallium, Dissolved Uranium, Dissolved Vanadium, Dissolved Zinc, Dissolved CtF WO#: 23E1617 www.ChemtechFord.com QC Report for Work Order {WO) -23E1617 % Rec RPD Limits RPD Max Result Source Cone Spk Value MRL DF Matrix Spike -EPA 200.8 {cont.) Batch: BXE1105 QC Source Sample: 23El617-01 Date Analyzed: 05/22/2023 Units: mg/L 88.6 75 -125 0.0375 0.0021 0.0400 0.0005 1.00 114 70 -130 0.053 0.007 0.0400 0.0005 1.00 90.2 70 -130 0.036 ND 0.0400 0.0005 1.00 98.6 70 -130 0.040 0.00009 0.0400 0.0002 1.00 104 70-130 0.063 0.021 0.0400 0.0005 1.00 99.2 70 -130 0.043 0.003 0.0400 0.0005 1.00 88.7 70 -130 0.036 0.0009 0.0400 0.0100 1.00 Batch: BXEI 105 QC Source Sample: XXXXXXX-XX Date Analyzed: 05/22/2023 Units: mg/L 104 70 -130 0.054 0.012 0.0400 0.0005 1.00 97.2 70 -130 0.039 ND 0.0400 0.0005 1.00 95.1 70 -130 0.038 0.0001 0.0400 0.0002 1.00 95.1 70 -130 0.040 0.002 0.0400 0.0005 1.00 89.2 70 -130 0.036 0.0003 0.0400 0.0005 1.00 86.1 70 -130 0.035 0.001 0.0400 0.0010 1.00 95.5 70 -130 0.038 ND 0.0400 0.0005 1.00 91.7 70 -130 0.049 0.012 0.0400 0.0005 1.00 98.0 70-130 0.042 0.003 0.0400 0.0005 1.00 88.6 75 -125 0.0381 0.0027 0.0400 0.0005 1.00 110 70 -130 0.047 0.003 0.0400 0.0005 1.00 96.0 70 -130 0.038 ND 0.0400 0.0005 1.00 101 70 -130 0.042 0.002 0.0400 0.0002 1.00 106 70 -130 0.046 0.004 0.0400 0.0005 1.00 98.8 70 -130 0.040 0.0009 0.0400 0.0005 1.00 83.3 70-130 0.105 0.072 0.0400 0.0100 1.00 Page 17 of 28 Analyte QC Sample ID: BXE1080-BLK1 Date Prepared: 05/19/2023 Mercury, Dissolved QC Sample ID: BXE1080-BS1 Date Prepared: 05/19/2023 Mercury, Dissolved QC Sample ID: BXE1080-MS1 Date Prepared: 05/19/2023 Mercury, Dissolved QC Sample ID: BXE1080-MS2 Date Prepared: 05/19/2023 Mercury, Dissolved QC Sample ID: BXE1080-MSD1 Date Prepared: 05/19/2023 Mercury, Dissolved QC Sample ID: BXE1080-MSD2 Date Prepared: 05/19/2023 Mercury, Dissolved CtF WO#: 23E1617 www.ChemtechFord.com QC Report for Work Order (WO) -23E1617 % Rec RPD Limits RPD Max Result Source Cone SpkValue MRL DF Blank -EPA 245.1 Batch: BXE1080 Date Analyzed: 05/22/2023 Units: mg/L ND 0.00015 1.00 LCS -EPA 245.1 Batch: BXE1080 Date Analyzed: 05/22/2023 Units: mg/L 112 85 -115 0.00562 0.00500 0.00015 1.00 Matrix Spike -EPA 245.1 Batch: BXE1080 QC Source Sample: XXXXXXX-XX Date Analyzed: 05/22/2023 Units: mg/L 111 75 -125 0.00555 ND 0.00500 0.00015 1.00 Batch: BXE1080 QC Source Sample: 23E1617-01 Date Analyzed: 05/22/2023 Units: mg/L 112 75 -125 0.00561 ND 0.00500 0.00015 1.00 Matrix Spike Dup -EPA 245.1 Batch: BXE 1080 QC Source Sample: XXXXXXX-XX Date Analyzed: 05/22/2023 Units: mg/L 112 0.509 75 -125 20 0.00558 ND 0.00500 0.00015 1.00 Batch: BXE1080 QC Source Sample: 23El617-01 Date Analyzed: 05/22/2023 Units: mg/L 113 0.758 75 -125 20 0.00566 ND 0.00500 0.00015 1.00 Page 18 of 28 QC Report for Work Order (WO) -23E1617 Analyte %Rec RPD Limits RPD Max Result Source Cone Blank -EPA 300.0 QC Sample ID: BXE0997-BLKI Batch: BXE0997 Date Prepared: 05/18/2023 Date Analyzed: 05/19/2023 Units: mg/L Chloride ND Fluoride ND QC Sample ID: BXE1130-BLK1 Batch: BXE1130 Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: mg/L Chloride ND Sulfate ND LCS -EPA 300.0 QC Sample ID: BXE0997-BS1 Batch: BXE0997 Date Prepared: 05/18/2023 Date Analyzed: 05/19/2023 Units: mg/L Chloride 98.0 90 -110 49.0 Fluoride 101 90-110 5.06 QC Sample ID: BXE1130-BSI Batch: BXEl 130 Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: mg/L Chloride 98.3 90 -110 49.1 Sulfate 98.0 90-110 49.0 Matrix Spike -EPA 300.0 QC Sample ID: BXE0997-MS1 Batch: BXE0997 QC Source Sample: XXXXXXX-XX Date Prepared: 05/18/2023 Date Analyzed: 05/19/2023 Units: mg/L Chloride 454 80-120 823 772 Fluoride 132 80 -120 2.05 0.576 QC Sample ID: BXE0997-MS2 Batch: BXE0997 QC Source Sample: 23El 617-01 Date Prepared: 05/18/2023 Date Analyzed: 05/19/2023 Units: mg/L Chloride 193 80 -120 134 112 Fluoride 167 80-120 2.65 0.794 QC Sample ID: BXE0997-MS3 Batch: BXE0997 QC Source Sample: XXXXXXX-XX Date Prepared: 05/18/2023 Date Analyzed: 05/19/2023 Units: mg/L Chloride 140 80-120 743 44.9 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. Fluoride QC Sample ID: BXE1130-MS1 Date Prepared: 05/22/2023 Chloride Fluoride Sulfate QC Sample ID: BXE1130-MS2 Date Prepared: 05/22/2023 Chloride Sulfate QC Sample ID: BXE0997-MSD1 Date Prepared: 05/18/2023 Chloride Fluoride CtF WO#: 23E1617 www.ChemtechFord.com 120 80-120 60.0 ND Batch: BXEI 130 QC Source Sample: 23£1617-01 Date Analyzed: 05/22/2023 Units: mg/L 96.0 80 -120 206 110 93.1 80 -120 10.1 0.783 88.5 80 -120 482 393 Batch: BXE1130 QC Source Sample: XXXXXXX-XX Date Analyzed: 05/22/2023 Units: mg/L 93.2 80 -120 33700 24400 91.7 80 -120 13100 3950 Matrix Spike Dup -EPA 300.0 Batch: BXE0997 QC Source Sample: XXXXXXX-XX Date Analyzed: 05/19/2023 Units: mg/L 438 0.223 80-120 20 821 772 137 2.79 80 -120 20 2.10 0.576 Spk Value MRL DF 1.00 1.00 0.100 1.00 1.00 1.00 1.00 1.00 50.0 1.00 1.00 5.00 0.100 1.00 50.0 1.00 1.00 50.0 1.00 1.00 11.1 1.22 1.00 1.11 0.122 1.00 11.1 1.22 1.00 1.11 0.122 1.00 500 55.0 1.00 50.0 5.50 1.00 100 11 .0 1.00 10.0 1.10 1.00 100 11.0 1.00 10000 1100 1.00 10000 1100 1.00 11.1 1.22 1.00 1.11 0.122 1.00 Page 19 of 28 QC Report for Work Order {WO) -23E1617 Analyte % Rec RPO Limits RPO Max Result Source Cone Matrix Spike Dup -EPA 300.0 {cont.) QC Sample ID: BXE0997-MSD1 Batch: BXE0997 QC Source Sample: XXXXXXX-XX Date Prepared: 05/18/2023 Date Analyzed: 05/19/2023 Units: mg/L QM-RPO -The recovery was outside acceptance limits for the MS and/or MSO. The RPO between the MS and MSO 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: BXE0997-MSD2 Batch: BXE0997 QC Source Sample: 23E1617-01 Date Prepared: 05/18/2023 Date Analyzed: 05/19/2023 Units: mg/L Chloride 195 0.161 BO -120 20 134 112 Fluoride 172 1.93 80-120 20 2.71 0.794 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: BXE0997-MSD3 Batch: BXE0997 QC Source Sample: XXXXXXX-XX Date Prepared: 05/18/2023 Date Analyzed: 05/19/2023 Units: mg/L Chloride 139 0.381 80-120 20 740 44.9 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 RPD. Fluoride 121 0.393 80-120 20 60.3 ND QM-12 -The MSO 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: BXEl 130-MSDI Batch: BXE1130 QC Source Sample: 23E1617-01 Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: mg/L Chloride 91.5 2.22 80 -120 20 201 110 Sulfate 81.1 1.54 80 -120 20 474 393 QC Sample ID: BXE1130-MSD2 Batch: BXE1130 QC Source Sample: XXXXXXX-XX Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: mg/L Chloride 96.1 0.829 80 -120 20 34000 24400 Sulfate CtF WO#: 23E1617 www.ChemtechFord.com 94.0 1.71 80 -120 20 13300 3950 Spk Value MRL OF 11.1 1.22 1.00 1.11 0.122 1.00 500 55.0 1.00 50.0 5.50 1.00 100 11 .0 1.00 100 11.0 1.00 10000 1100 1.00 10000 1100 1.00 Page 20 of 28 Analyte QC Sample ID: BXE1410-BLK1 Date Prepared: 05/26/2023 Ammonia as N QC Sample ID: BXE141 l-BLK1 Date Prepared: 05/26/2023 Ammonia as N QC Sample ID: BXE1410-BS1 Date Prepared: 05/26/2023 Ammonia as N QC Sample ID: BXE141 l-BS1 Date Prepared: 05/26/2023 Ammonia as N QC Sample ID: BXE1410-MS1 Date Prepared: 05/26/2023 Ammonia as N QC Sample ID: BXE1411-MS1 Date Prepared: 05/26/2023 Ammonia as N QC Sample ID: BXE1410-MSD1 Date Prepared: 05/26/2023 Ammonia as N QC Sample ID: BXE1411-MSDI Date Prepared: 05/26/2023 Ammonia as N CtF WO#: 23E1617 www.ChemtechFord.com QC Report for Work Order (WO) -23E1617 % Rec RPD Limits RPD Max Result Source Cone Spk Value MRL DF Blank -EPA 350.1 Batch: BXE1410 Date Analyzed: 05/26/2023 Units: mg/L ND 0.20 1.00 Batch: BXE141 l Date Analyzed: 05/26/2023 Units: mg/L ND 0.20 1.00 LCS -EPA 350.1 Batch: BXE1410 Date Analyzed: 05/26/2023 Units: mg/L 95.0 90-110 4.75 5.00 0.20 1.00 Batch: BXE1411 Date Analyzed: 05/26/2023 Units: mg/L 93.0 90-110 4.65 5.00 0.20 1.00 Matrix Spike -EPA 350.1 Batch: BXE1410 QC Source Sample: XXXXXXX-XX Date Analyzed: 05/26/2023 Units: mg/L 105 80 -120 6.87 1.63 5.00 0.20 1.00 Batch: BXE1411 QC Source Sample: 23E1617-01 Date Analyzed: 05/26/2023 Units: mg/L 97.4 80-120 4.87 ND 5.00 0.20 1.00 Matrix Spike Dup -EPA 350.1 Batch: BXE1410 QC Source Sample: XXXXXXX-XX Date Analyzed: 05/26/2023 Units: mg/L 102 2.06 80 -120 20 6.73 1.63 5.00 0.20 1.00 Batch: BXE1411 QC Source Sample: 23E1617-01 Date Analyzed: 05/26/2023 Units: mg/L 102 4.22 80 -120 20 5.08 ND 5.00 0.20 1.00 Page 21 of 28 Analyte QC Sample ID: BXE1196-BLK1 Date Prepared: 05/23/2023 Nitrate + Nitrite, Total, as N QC Sample ID: BXE1196-BSI Date Prepared: 05/23/2023 Nitrate + Nitrite, Total, as N QC Sample ID: BXE1196-MS1 Date Prepared: 05/23/2023 Nitrate + Nitrite, Total, as N QC Sample ID: BXEII96-MS2 Date Prepared: 05/23/2023 Nitrate + Nitrite, Total, as N QC Sample ID: BXE1196-MSD1 Date Prepared: 05/23/2023 Nitrate + Nitrite, Total, as N QC Sample ID: BXE1196-MSD2 Date Prepared: 05/23/2023 Nitrate + Nitrite, Total, as N CtF WO#: 23E1617 www.ChemtechFord.com QC Report for Work Order (WO) -23E1617 %Rec RPD Limits RPD Max Result Source Cone SpkValue MRL DF Blank -EPA 353.2 Batch: BXE1196 Date Analyzed: 05/23/2023 Units: mg/L ND 0.100 1.00 LCS -EPA 353.2 Batch: BXE 1 I 96 Date Analyzed: 05/23/2023 Units: mg/L 110 80-120 2.19 2.00 0.100 1.00 Matrix Spike -EPA 353.2 Batch: BXE1196 QC Source Sample: XXXXXXX-XX Date Analyzed: 05/23/2023 Units: mg/L 90.3 80 -120 1.25 0.347 1.00 0.100 1.00 Batch: BXEI 196 QC Source Sample: 23EI617-0l Date Analyzed: 05/23/2023 Units: mg/L 91.6 80 -120 1.15 0.237 1.00 0.100 1.00 Matrix Spike Dup -EPA 353.2 Batch: BXE1196 QC Source Sample: XXXXXXX-XX Date Analyzed: 05/23/2023 Units: mg/L 88.0 1.86 80 -120 20 1.23 0.347 1.00 0.100 1.00 Batch: BXEl I 96 QC Source Sample: 23E1617-01 Date Analyzed: 05/23/2023 Units: mg/L 93.3 1.46 80 -120 20 1.17 0.237 1.00 0.100 1.00 Page 22 of 28 QC Report for Work Order (WO) -23E1617 Analyte % Rec RPO Limits RPO Max Result Source Cone Spk Value MRL OF Blank -EPA 8260D /5030A QC Sample ID: BXE1179-BLK1 Batch: BXE 1179 Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: ug/L Acetone ND 10.0 1.00 Benzene ND 1.0 1.00 Carbon Tetrachloride ND 1.0 1.00 Chloroform ND 1.0 1.00 Chloromethane ND 1.0 1.00 Methyl Ethyl Ketone ND 1.0 1.00 Methylene Chloride ND 2.0 1.00 Naphthalene ND 1.0 1.00 Tetrahydrofuran ND 1.0 1.00 Toluene ND 1.0 1.00 Xylenes, total ND 1.0 1.00 LCS -EPA 8260D /5030A QC Sample ID: BXE1179-BS1 Batch: BXEl 179 Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: ug/L Acetone 87.5 70 -130 87.5 100 10.0 1.00 Benzene 78.0 70 -130 7.80 10.0 0.4 1.00 Carbon Tetrachloride 79.7 70-130 7.97 10.0 1.0 1.00 Chloroform 74.6 70-130 7.46 10.0 1.0 1.00 Chloromethane 67.1 70-130 6.71 10.0 1.0 1.00 J-LOW-L -Estimated low due to low recovery of LCS Methyl Ethyl Ketone 99.2 70-130 9.92 10.0 1.0 1.00 Methylene Chloride 87.8 70 -130 8.78 10.0 2.0 1.00 Naphthalene 92.6 70 -130 9.26 10.0 1.0 1.00 Tetrahydrofuran 81.9 70 -130 16.4 20.0 1.0 1.00 Toluene 77.9 70 -130 7.79 10.0 1.0 1.00 Xylenes, total 78.8 70 -130 23.6 30.0 1.0 1.00 Matrix Spike -EPA 8260D /5030A QC Sample ID: BXE1179-MS1 Batch: BXEll 79 QC Source Sample: 23E1617-01 Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: ug/L Acetone 84.2 70-130 421 ND 500 50.0 1.00 Benzene 86.4 70-130 43.2 ND 50.0 2.0 1.00 Carbon Tetrachloride 98.9 70-130 49.4 ND 50.0 5.0 1.00 Chloroform 82.4 70-130 41.2 ND 50.0 5.0 1.00 Chloromethane 78.0 70 -130 39.0 ND 50.0 5.0 1.00 Methyl Ethyl Ketone 101 70 -130 50.6 ND 50.0 5.0 1.00 Methylene Chloride 93.8 70 -130 46.9 ND 50.0 10.0 1.00 Naphthalene 99.7 70 -130 49.8 ND 50.0 5.0 1.00 Tetrahydrofuran 83.0 70-130 83.0 ND 100 5.0 1.00 Toluene 88.8 70 -130 44.4 ND 50.0 5.0 1.00 Xylenes, total 90.6 70-130 136 ND 150 5.0 1.00 Matrix Spike Dup -EPA 8260D /5030A QC Sample ID: BXEll 79-MSDI Batch: BXEl 179 QC Source Sample: 23El617-0l Date Prepared: 05/22/2023 Date Analyzed: 05/22/2023 Units: ug/L Acetone 82.6 1.87 70 -130 20 413 ND 500 50.0 1.00 Benzene 84.9 1.75 70 -130 20 42.4 ND 50.0 2.0 1.00 Carbon Tetrachloride 97.3 1.63 70 -130 20 48.6 ND 50.0 5.0 1.00 Chloroform 82.8 0.484 70-130 20 41.4 ND 50.0 5.0 1.00 Chloromethane 74.9 4.05 70 -130 20 37.4 ND 50.0 5.0 1.00 Methyl Ethyl Ketone 104 2.35 70 -130 20 51.8 ND 50.0 5.0 1.00 CtF WO#: 23E1617 www.ChemtechFord.com Page 23 of 28 Analyte QC Sample ID: BXEll 79-MSDl Date Prepared: 05/22/2023 Methylene Chloride Naphthalene Tetrahydrofuran Toluene Xylenes, total CtF WO#: 23E1617 www.ChemtechFord.com QC Report for Work Order (WO) -23E1617 % Rec RPO Limits RPO Max Result Source Cone Matrix Spike Dup -EPA 8260D /5030A (cont.) Batch: BXEI 179 QC Source Sample: 23El617-0l Date Analyzed: 05/22/2023 Units: ug/L 96.9 3.25 70-130 20 48.4 ND 100 0.600 70-130 20 50.2 ND 85.6 3.02 70-130 20 85.6 ND 86.7 2.39 70-130 20 43.4 ND 87.9 3.03 70 -130 20 132 ND SpkValue MRL OF 50.0 10.0 1.00 50.0 5.0 1.00 100 5.0 1.00 50.0 5.0 1.00 150 5.0 1.00 Page 24 of 28 Analyte QC Sample ID: BXE1189-BLK1 Date Prepared: 05/23/2023 Alkalinity -Bicarbonate (as CaCO3) Alkalinity -Carbonate (as CaCO3) QC Sample ID: BXE1189-DUP1 Date Prepared: 05/23/2023 Alkalinity -Bicarbonate (as CaCO3) Alkalinity -Carbonate (as CaCO3) Alkalinity -Hydroxide (as CaCO3) Alkalinity -Total (as CaCO3) QC Sample ID: BXEll89-DUP2 Date Prepared: 05/23/2023 Alkalinity -Bicarbonate (as CaCO3) Alkalinity -Carbonate (as CaCO3) Alkalinity -Hydroxide (as CaCO3) Alkalinity -Total (as CaCO3) QC Sample ID: BXEll89-BS1 Date Prepared: 05/23/2023 Alkalinity -Total (as CaCO3) CtF WO#: 23E1617 www.ChemtechFord.com QC Report for Work Order {WO) -23E1617 %Rec RPO Limits RPO Max Result Source Cone Spk Value MRL OF Blank -SM 2320 B Batch: BXEll 89 Date Analyzed: 05/23/2023 Units: mg/L ND 1.0 1.00 ND 1.0 1.00 Duplicate -SM 2320 B Batch: BXEI 189 QC Source Sample: XXXXXXX-XX Date Analyzed: 05/23/2023 Units: mg/L 0.771 20 169 168 1.0 1.00 20 ND ND 1.0 1.00 20 ND ND 1.0 1.00 0.771 20 169 168 1.0 1.00 Batch: BXEll89 QC Source Sample: 23El617-01 Date Analyzed: 05/23/2023 Units: mg/L 0.0311 20 322 321 1.0 1.00 20 ND ND 1.0 1.00 20 ND ND 1.0 1.00 0.0311 20 322 321 1.0 1.00 LCS -SM 2320 B Batch: BXEll89 Date Analyzed: 05/23/2023 Units: mg/L 95.8 90-110 226 236 1.0 1.00 Page 25 of 28 Analyte QC Sample ID: BXE1037-BLKI Date Prepared: 05/19/2023 Total Dissolved Solids (TDS) QC Sample ID: BXE1037-DUP1 Date Prepared: 05/19/2023 Total Dissolved Solids (TDS) QC Sample ID: BXE1037-DUP2 Date Prepared: 05/19/2023 Total Dissolved Solids (TDS) QC Sample ID: BXE1037-BS1 Date Prepared: 05/19/2023 Total Dissolved Solids (TDS) CtF WO#: 23E1617 www.ChemtechFord.com QC Report for Work Order (WO) -23E1617 %Rec RPD Limits RPD Max Result Source Cone Blank -SM 2540 C Batch: BXE1037 Date Analyzed: 05/19/2023 Units: mg/L ND Duplicate -SM 2540 C Batch: BXE1037 QC Source Sample: XXXXXXX-XX Date Analyzed: 05/19/2023 Units: mg/L 0 10 1800 1800 Batch: BXE1037 QC Source Sample: 23El617-01 Date Analyzed: 05/19/2023 Units: mg/L 2 10 1060 1080 LCS -SM 2540 C Batch: BXE1037 Date Analyzed: 05/19/2023 Units: mg/L 104 90-110 416 Spk Value MRL DF 10 1.00 20 1.00 20 1.00 400 20 1.00 Page 26 of 28 Surrogates Report for Work Order {WO) -23E1617 QCID Analyte BXE1179-BLK1 1,2-Dichloroethane-d4 BXE1179-BLK1 4-Bromofluorobenzene BXE1179-BLK1 Toluene-dB BXE1179-BS1 1,2-Dichloroethane-d4 BXE 1179-8S 1 4-Bromofluorobenzene BXE1179-BS1 Toluene-dB BXE1179-MS1 1,2-Dichloroethane-d4 BXE 1179-MS 1 4-Bromofluorobenzene BXE1179-MS1 Toluene-dB BXE1179-MSD1 1,2-Dichloroethane-d4 BXE1179-MSD1 4-Bromofluorobenzene BXE1179-MSD1 Toluene-dB CtF WO#: 23E1617 www.ChemtechFord.com % Rec LCL UCL Result Blank -EPA 8260D /5030A 99.7 64.2 126 9.97 99.8 71.4 125 9.98 97.7 63.2 129 9.77 LCS -EPA 8260D /5030A 96.7 64.2 126 9.67 97.9 71.4 125 9.79 99.5 63.2 129 9.95 Matrix Spike -EPA 8260D /5030A 97.4 64.2 126 48.7 97.4 71.4 125 48.7 99.1 63.2 129 49.6 Matrix Spike Dup -EPA 8260D /5030A 96.5 64.2 126 48.2 96.8 71.4 125 48.4 97.5 63.2 129 48.8 Spk Value Batch DF 10.0 BXE1179 1.00 10.0 BXE1179 1.00 10.0 BXE1179 1.00 10.0 BXE1179 1.00 10.0 BXE1179 1.00 10.0 BXE1179 1.00 50.0 BXE1179 1.00 50.0 BXE1179 1.00 50.0 BXE1179 1.00 50.0 BXE1179 1.00 50.0 BXE1179 1.00 50.0 BXE1179 1.00 Page 27 of 28 Surrogate Recoveries (Field Samples) LabNumber Analyte 8260 Low Level Volatiles 23E1617-01 Toluene-dB 23E1617-01 4-Bromofluorobenzene 23E1617-01 1,2-Dichloroethane-d4 8260 Low Level Volatiles 23E1617-02 Toluene-dB 23E1617-02 23E1617-02 4-Bromofluorobenzene 1 ,2-Dichloroethane-d4 8260 Low Level Volatiles 23E1617-03 Toluene-dB 23E1617-03 4-Bromofluorobenzene 23E1617-03 1,2-Dichloroethane-d4 8260 Low Level Volatiles 23E1617-04 Toluene-dB 23E1617-04 4-Bromofluorobenzene 23E1617-04 1,2-Dichloroethane-d4 8260 Low Level Volatiles 23E1617-05 Toluene-dB 23E1617-05 4-Bromofluorobenzene 23E1617-05 1 ,2-Dichloroethane-d4 CtF WO#: 23E1617 www.ChemtechFord.com Result 9.86 10.1 9.78 10.0 9.90 10.0 10.0 9.91 10.0 9.89 10.1 9.77 9.75 9.71 9.76 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 %Rec 98.6 101 97.8 100 99.0 100 100 99.1 100 98.9 101 97.7 97.5 97.1 97.6 LCL UCL Qualifier 63.2 129 71.4 125 64.2 126 63.2 129 71.4 125 64.2 126 63.2 129 71.4 125 64.2 126 63.2 129 71.4 125 64.2 126 63.2 129 71.4 125 64.2 126 Page 28 of 28 9632 South 500 West CHEMTECH-FORD I_ABO~o\TO~lfS 4/20/2023 Work Order: 23C230 I Project: Annual Seeps & Springs 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 20 I CH EMTECH-FORD .J..BORATORIES 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: Annual Seeps & Springs 2023 Project Manager: Tanner Holliday Laboratory ID 23C2301-01 23C2301-02 Sample Name Westwater Seep 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 20 I CHEMTECH-FORD !..ABORAT0RIE5 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: 3/31/23 10:30@ 1.3 ·c Date Reported: 4/20/2023 Project Name: Annual Seeps & Springs 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 ugikg = one microgram per kilogram = 1 part per billion. I ng/L = one nanogram per liter or I ngikg = one nanogram per kilogram = I part per trillion. Proiect Name: Annual Seeps & Sprinas 2023 www.ChemtechFord.com CtF WO#: 23C2301 Page 6 of 20 American West Analytical Laboratories 463 W 3600 S Sall Lake City, UT 84115 Phone# (801 J 263-8686 Toll Free# (888) 263-8686 CHAIN OF CUSTODY All analysis wilt be conducted using NELAP accrediled methods and all data wlll be reported using AWAL's slandard analyte lists and reporting limits (POL) unless specifically requested otherwise on this Chain or Custody andlor attached oocumentatlon AWAL Lab Sample Set# Page 1 of ~ Fax# (801 I 263-8687 Email awal@awal-labs.com www.awal-labs.com QC Level: 3 Tum Around Time: Standard Unless other arrangements have been made, ,,D UC Date: signed reports will be emailed by 5:00 pm on lhe day they are due Client: Energy Fuels Resources, Inc. Address: 6425 8. Hwy. 191 Blanding, UT 84511 Contact: Tanner Holliday Phone#: (435) 678-2221 Cell#: Email: tholllda~energyfoela.com; KWelnel@:energyfaela.com c' 0 Annual Seeps & Springs 2023 C) Project Name: -") -ixi' 0 .. 0 "' C) Project#: c';' g C'l ") ") ~ .. "' ~ 0 ~ PO#: ~ 2 G' i I!? Q) >< .,. C) Tanner Holliday C: ·c: C') 0 i 1ii ..,. .l! Sampler Name: s 0 "' "' C: :::; II: ~ ~ Ill 2-~C2~0 \ 0 ., ..... ti ..... Date Time u a. i ii ID i 0 E i: ~ Sample ID: Sampled S1.1mploc ., t) _,. en -DI lwe■twater Seep 3/30/2023 800 7 w X X X X X 0 ::E "' (J OD OD :i: ;::-d' ::E <ti ::E :i ..,. C'l .0 .i ~ C. z 0 ,; d' C) c.. N C'l ::i > ;::. 0 (J ::i 0 C) ~ (J d' rn ~ ,; (J e:: 0 .,,; G' I (J OD 0 <C 0 " IO "Cl ,; ,; -! C'l 0 m rn ~ .e: 0 ,;; z Ill • • <C t) • II 0 iS 0 > .. X X X X X K Include EDD: LOCUS UPLOAD EXCEL K Field FIitered For: DIAolved Metala For Compliance With: 0 NELAP 0 RCRA D CWA 0 SOWA 0 ELAP/A2LA □ NLLAP 0 Non-Compliance D other: Known Hazards & Sample Comments ,4/};11.. I ZSZ Laboratory Use Only 5"m~eoWen,: I SNi,pcd o, 1'130C! - 2 Amblenl or Chllled 3 Temperature _.l_S__·c 4 R,::w-,111h,A11 RmkArl/Lealuna 5 ~ ,:, ~ 1 !~ ~ cc :.c ~ ~ ·J ~ ~ -g j ~ ~ -~ 1 i] ~ 1 --\;5 ----,, iJ 'lJ,rrtp Blank r 3/30/2023 800 3 w I I I I I I X h 1~ 1~ If°' • I I I I I I I I I I I I I I A/ it6.5 , ' 17 15 ~ E ~ 0 ~ > ~ .!! '.§ "'O .!I ~ A w t.J ,..,. p( t ✓l, . .,lf l-------------------------l--------1------1,--1---1----+----+---i-------,---l--+--+--+-------------t- ROIIOQ<,....,Dr IS'!J"'l!U<O -C./ ='-----/ ·--01110 'Received tlY/1 ) , ~ ~ 313H"l02J~nature./'\\ { ) CJ1P ,C{ / -Timo. --- IPrtn1 Namn.. Coon Lvrnllill ~r,ot Name I ·2/;21~£7 I 03 () ■ "'" 111<11/oqufoni,d i,y-Dn<llc Recetved by: I"• lslgn.~UT8 Sirlnature I f_Mt Nrimn R .. nqv<1he<I br l<"Unn.itl'!_C Prln1t-l~~ R .. """""'°"oy: Sli)OO!\<o :Prinl Nmno nme ITir ~ 10: C,.:114: ITime.. o~ur Time ertJJ.f_ltam~.;_ i''<ecetvecl Dy: ~oatui:e [Print Name: Received by: IS!Qoature PrinlN~~ . Dale nme: e Special Instructions: C: QI.!! ltl o"'OC.Vl u .=! E ..., +-' U O C ~iii A IA vi IA C: :E i ~ ] ~ +-' ~ ~ ~ ~ j ~ ltl -I'll C: ·cu ~ ~ ....I o If.~~} ~ ti i: u ~ ~ ~~ ~~ JI -~-S Page 7 of 20 Analyte QC Sample ID: BXD0025-BLK1 Date Prepared: 04/03/2023 Calcium, Dissolved Iron, Dissolved Magnesium, Dissolved Potassium, Dissolved Sodium, Dissolved Tin, Dissolved QC Sample ID: BXD0025-BSI Date Prepared: 04/03/2023 Calcium, Dissolved Iron, Dissolved Magnesium, Dissolved Potassium, Dissolved Sodium, Dissolved Tin, Dissolved QC Sample ID: BXD0025-MSI Date Prepared: 04/03/2023 Calcium, Dissolved Iron , Dissolved Magnesium, Dissolved Potassium, Dissolved Sodium, Dissolved Tin, Dissolved QC Sample ID: BXD0025-MSD1 Date Prepared: 04/03/2023 Calcium, Dissolved Iron, Dissolved Magnesium, Dissolved Potassium, Dissolved Sodium, Dissolved Tin, Dissolved CtF WO#: 23C2301 www.ChemtechFord.com QC Report for Work Order (WO) -23C2301 % Rec RPD Limits RPD Max Result Source Cone Spk Value MRL OF Blank -EPA 200.7 Batch: BXD0025 Date Analyzed: 04/03/2023 Units: mg/L ND 0.2 1.00 ND 0.02 1.00 ND 0.2 1.00 ND 0.5 1.00 ND 0.5 1.00 ND 0.02 1.00 LCS -EPA 200.7 Batch: BXD0025 Date Analyzed: 04/03/2023 Units: mg/L 100 85-115 10.2 10.2 0.2 1.00 104 85-115 0.208 0.200 0.02 1.00 101 85 -115 10.3 10.2 0.2 1.00 94.9 85 -115 9.5 10.0 0.5 1.00 99.6 85 -115 10.0 10.0 0.5 1.00 106 85 -155 0.21 0.200 0.02 1.00 Matrix Spike -EPA 200.7 Batch: BXD0025 QC Source Sample: 23C2301-0l Date Analyzed: 04/03/2023 Units: mg/L 82.3 70 -130 156 148 10.2 0.2 1.00 102 70 -130 0.233 0.029 0.200 0.02 1.00 92.7 70-130 47.0 37.5 10.2 0.2 1.00 95.2 70 -130 11.4 1.9 10.0 0.5 1.00 76.7 70 -130 136 128 10.0 0.5 1.00 110 70 -130 0.22 ND 0.200 0.02 1.00 Matrix Spike Dup -EPA 200.7 Batch: BXD0025 QC Source Sample: 23C2301-0l Date Analyzed: 04/03/2023 Units: mg/L 89.3 0.457 70 -130 20 157 148 10.2 0.2 1.00 106 3.33 70 -130 20 0.241 0.029 0.200 0.02 1.00 95.0 0.505 70 -130 20 47.2 37.5 10.2 0.2 1.00 96.4 1.12 70 -130 20 11.5 1.9 10.0 0.5 1.00 79.9 0.238 70 -130 20 136 128 10.0 0.5 1.00 105 4.99 70 -130 20 0.21 ND 0.200 0.02 1.00 Page 8 of 20 QC Report for Work Order (WO) -23C2301 Analyte % Rec RPO Limits RPO Max Result Source Cone Spk Value MRL OF Blank -EPA 200.8 QC Sample ID: BXD0019-BLK1 Batch: BXD0019 Date Prepared: 04/03/2023 Date Analyzed: 04/03/2023 Units: mg/L Arsenic, Dissolved ND 0.0005 1.00 Beryllium, Dissolved ND 0.0005 1.00 Cadmium, Dissolved ND 0.0002 1.00 Chromium, Dissolved ND 0.0005 1.00 Cobalt, Dissolved ND 0.0005 1.00 Copper, Dissolved ND 0.0010 1.00 Lead, Dissolved ND 0.0005 1.00 Manganese, Dissolved ND 0.0005 1.00 Molybdenum, Dissolved ND 0.0005 1.00 Nickel, Dissolved ND 0.0005 1.00 Selenium, Dissolved ND 0.0005 1.00 Silver, Dissolved ND 0.0005 1.00 Thallium, Dissolved ND 0.0002 1.00 Uranium, Dissolved ND 0.0005 1.00 Vanadium, Dissolved ND 0.0005 1.00 Zinc, Dissolved ND 0.0100 1.00 LCS -EPA 200.8 QC Sample ID: BXD0019-BS1 Batch: BXD0019 Date Prepared: 04/03/2023 Date Analyzed: 04/03/2023 Units: mg/L Arsenic, Dissolved 97.6 85 -115 0.039 0.0400 0.0005 1.00 Beryllium, Dissolved 98.3 85 -115 0.039 0.0400 0.0005 1.00 Cadmium, Dissolved 96.4 85-115 0.039 0.0400 0.0002 1.00 Chromium, Dissolved 95.9 85 -115 0.038 0.0400 0.0005 1.00 Cobalt, Dissolved 95.3 85 -115 0.038 0.0400 0.0005 1.00 Copper, Dissolved 94.6 85 -115 0.038 0.0400 0.0010 1.00 Lead, Dissolved 96.7 85 -115 0.039 0.0400 0.0005 1.00 Manganese, Dissolved 97.3 85 -115 0.039 0.0400 0.0005 1.00 Molybdenum, Dissolved 98.4 85 -115 0.039 0.0400 0.0005 1.00 Nickel, Dissolved 95.0 85 -115 0.0380 0.0400 0.0005 1.00 Selenium, Dissolved 95.6 85-115 0.038 0.0400 0.0005 1.00 Silver, Dissolved 98.9 85 -115 0.040 0.0400 0.0005 1.00 Thallium, Dissolved 103 85-115 0.041 0.0400 0.0002 1.00 Uranium, Dissolved 102 85-115 0.041 0.0400 0.0005 1.00 Vanadium, Dissolved 99.6 85-115 0.040 0.0400 0.0005 1.00 Zinc, Dissolved 92.0 85 -115 0.037 0.0400 0.0100 1.00 Matrix Spike -EPA 200.8 QC Sample ID: BXD0019-MS1 Batch: BXD0019 QC Source Sample: 23C2301-01 Date Prepared: 04/03/2023 Date Analyzed: 04/03/2023 Units: mg/L Arsenic, Dissolved 106 70 -130 0.044 0.002 0.0400 0.0005 1.00 Beryllium, Dissolved 101 70 -130 0.040 ND 0.0400 0.0005 1.00 Cadmium, Dissolved 93.4 70 -130 0.037 ND 0.0400 0.0002 1.00 Chromium, Dissolved 96.9 70 -130 0.042 0.003 0.0400 0.0005 1.00 Cobalt, Dissolved 92.4 70 -130 0.038 0.0008 0.0400 0.0005 1.00 Copper, Dissolved 88.9 70 -130 0.036 0.0006 0.0400 0.0010 1.00 Lead, Dissolved 91.2 70-130 0.036 ND 0.0400 0.0005 1.00 Manganese, Dissolved 89.4 70 -130 0.187 0.151 0.0400 0.0005 1.00 Molybdenum, Dissolved 101 70-130 0.042 0.002 0.0400 0.0005 1.00 Nickel, Dissolved 89.7 75 -125 0.0375 0.0016 0.0400 0.0005 1.00 Selenium, Dissolved 109 70 -130 0.045 0.001 0.0400 0.0005 1.00 CtF WO#: 23C2301 www.ChemtechFord.com Page 9 of 20 Analyte QC Sample ID: BXD0019-MS1 Date Prepared: 04/03/2023 Silver, Dissolved Thallium, Dissolved Uranium, Dissolved Vanadium, Dissolved Zinc, Dissolved CtF WO#: 23C2301 www.ChemtechFord.com QC Report for Work Order (WO) -23C2301 %Rec RPD Limits RPD Max Result Source Cone Matrix Spike -EPA 200.8 (cont.) Batch: BXD0019 QC Source Sample: 23C2301-01 Date Analyzed: 04/03/2023 Units: mg/L 95.8 70 -130 0.038 ND 98.6 70 -130 0.039 ND 103 70 -130 0.045 0.004 102 70-130 0.042 0.001 88.4 70 -130 0.035 ND SpkValue MRL DF 0.0400 0.0005 1.00 0.0400 0.0002 1.00 0.0400 0.0005 1.00 0.0400 0.0005 1.00 0.0400 0.0100 1.00 Page 10 of 20 Analyte QC Sample ID: BXD0057-BLK1 Date Prepared: 04/04/2023 Mercury, Dissolved QC Sample ID: BXD0057-BS1 Date Prepared: 04/04/2023 Mercury, Dissolved QC Sample ID: BXD0057-MS1 Date Prepared: 04/04/2023 Mercury, Dissolved QC Sample ID: BXD0057-MSD1 Date Prepared: 04/04/2023 Mercury, Dissolved CtF WO#: 23C2301 www.ChemtechFord.com QC Report for Work Order (WO) -23C2301 % Rec RPO Limits RPO Max Result Source Cone Spk Value MRL OF Blank -EPA 245.1 Batch: BXD0057 Date Analyzed: 04/04/2023 Units: mg/L ND 0.00015 1.00 LCS -EPA 245.1 Batch: BXD0057 Date Analyzed: 04/04/2023 Units: mg/L 104 85 -115 0.00522 0.00500 0.00015 1.00 Matrix Spike -EPA 245.1 Batch: BXD0057 QC Source Sample: 23C2301-01 Date Analyzed: 04/04/2023 Units: mg/L 111 75 -125 0.00553 ND 0.00500 0.00015 1.00 Matrix Spike Dup -EPA 245.1 Batch: BXD0057 QC Source Sample: 23C2301-0l Date Analyzed: 04/04/2023 Units: mg/L 108 2.12 75 -125 20 0.00541 ND 0.00500 0.00015 1.00 Page 11 of 20 QC Report for Work Order (WO) • 23C2301 Analyte % Rec RPD Limits RPD Max Result Source Cone Blank -EPA 300.0 QC Sample ID: BXD0050-BLK1 Batch: BXD0050 Date Prepared: 04/04/2023 Date Analyzed: 04/04/2023 Units: mg/L Chloride ND Fluoride ND QC Sample ID: BXD0104-BLKI Batch: BXDO 104 Date Prepared: 04/05/2023 Date Analyzed: 04/05/2023 Units: mg/L Sulfate ND LCS -EPA 300.0 QC Sample ID: BXD0050-BSI Batch: BXD0050 Date Prepared: 04/04/2023 Date Analyzed: 04/04/2023 Units: mg/L Chloride 98.2 90 -110 49.1 Fluoride 97.4 90-110 4.87 QC Sample ID: BXD0104-BSI Batch: BXD0104 Date Prepared: 04/05/2023 Date Analyzed: 04/05/2023 Units: mg/L Sulfate 100 90 -110 50.1 Matrix Spike -EPA 300.0 QC Sample JD: BXD0050-MS1 Batch: BXD0050 QC Source Sample: XXXXXXX-XX Date Prepared: 04/04/2023 Date Analyzed: 04/04/2023 Units: mg/L Chloride 101 80 -120 45.0 33.8 Fluoride 79.5 80-120 1.05 0.168 QM-010 -The MS recovery was outside acceptance limits but passed Duplicate Spike acceptance limits. The batch was accepted based on the acceptability of the MSD as the batch Spike. QC Sample ID: BXD0050-MS2 Batch: BXD0050 QC Source Sample: 23C2301-0l Date Prepared: 04/04/2023 Date Analyzed: 04/04/2023 Units: mg/L Chloride 90.8 80-120 59.7 49.6 Fluoride 99.9 80-120 1.54 0.434 QC Sample ID: BXD0104-MS1 Batch: BXDO 104 QC Source Sample: 23C2301-0l Date Prepared: 04/05/2023 Date Analyzed: 04/05/2023 Units: mg/L Sulfate 134 80 -120 758 491 QM-010 -The MS recovery was outside acceptance limits but passed Duplicate Spike acceptance limits. The batch was accepted based on the acceptability of the MSD as the batch Spike. QC Sample ID: BXD0104-MS2 Date Prepared: 04/05/2023 Sulfate QC Sample ID: BXD0050-MSD1 Date Prepared: 04/04/2023 Chloride Fluoride QC Sample ID: BXD0050-MSD2 Date Prepared: 04/04/2023 Chloride Fluoride QC Sample ID: BXD0104-MSD1 Date Prepared: 04/05/2023 Sulfate CtF WO#: 23C2301 www.ChemtechFord.com Batch: BXD0104 QC Source Sample: XXXXXXX-XX Date Analyzed: 04/05/2023 Units: mg/L 93.8 80 -120 160 66.5 Matrix Spike Dup • EPA 300.0 Batch: BXD0050 QC Source Sample: XXXXXXX-XX Date Analyzed: 04/04/2023 Units: mg/L 103 0.380 80 -120 20 45.2 33.8 81 .3 1.93 80 -120 20 1.07 0.168 Batch: BXD0050 QC Source Sample: 23C2301-0l Date Analyzed: 04/04/2023 Units: mg/L 91 .0 0.0369 80 -120 20 59.7 49.6 100 0.137 80 -120 20 1.55 0.434 Batch: BXDO 104 QC Source Sample: 23C2301-0l Date Analyzed: 04/05/2023 Units: mg/L 117 4.45 80-120 20 725 491 Spk Value MRL DF 1.00 1.00 0.100 1.00 1.00 1.00 50.0 1.00 1.00 5.00 0.100 1.00 50.0 1.00 1.00 11 .1 1.11 1.00 1.11 0.111 1.00 11.1 1.11 1.00 1.11 0.111 1.00 200 22.0 1.00 100 11.0 1.00 11.1 1.11 1.00 1.11 0.111 1.00 11.1 1.11 1.00 1.11 0.111 1.00 200 22.0 1.00 Page 12 of 20 Analyte QC Sample ID: BXD0I04-MSD2 Date Prepared: 04/05/2023 Sulfate CtF WO#: 23C2301 www.ChemtechFord.com QC Report for Work Order (WO) -23C2301 %Rec RPD Limits RPD Max Result Source Cone Matrix Spike Dup -EPA 300.0 (cont.) Batch: BXD0I04 QC Source Sample: :XXXXXXX-XX Date Analyzed: 04/05/2023 Units: mg/L 92.6 0.738 80-120 20 159 66.5 Spk Value MRL DF 100 11.0 1.00 Page 13 of 20 Analyte QC Sample ID: BXD0003-BLK1 Date Prepared: 04/03/2023 Ammonia as N QC Sample ID: BXD0003-BS1 Date Prepared: 04/03/2023 Ammonia as N QC Sample ID: BXD0003-MS1 Date Prepared: 04/03/2023 Ammonia as N QC Sample ID: BXD0003-MSD1 Date Prepared: 04/03/2023 Ammonia as N CtF WO#: 23C2301 www.ChemtechFord.com QC Report for Work Order (WO) -23C2301 % Rec RPO Limits RPO Max Result Source Cone Spk Value MRL OF Blank -EPA 350.1 Batch: BXD0003 Date Analyzed: 04/03/2023 Units: mg/L ND 0.20 1.00 LCS -EPA 350.1 Batch: BXD0003 Date Analyzed: 04/03/2023 Units: mg/L 104 90 -110 5.22 5.00 0.20 1.00 Matrix Spike -EPA 350.1 Batch: BXD0003 QC Source Sample: 23C2301-01 Date Analyzed: 04/03/2023 Units: mg/L 107 80 -120 5.36 ND 5.00 0.20 1.00 Matrix Spike Dup -EPA 350.1 Batch: BXD0003 QC Source Sample: 23C2301-01 Date Analyzed: 04/03/2023 Units: mg/L 104 3.03 80-120 20 5.20 ND 5.00 0.20 1.00 Page 14 of 20 QC Report for Work Order (WO) -23C2301 Analyte %Rec RPD Limits RPD Max Result Source Cone Blank -EPA 353.2 QC Sample ID: BXD0274-BLKI Batch: BXD0274 Date Prepared: 04/10/2023 Date Analyzed: 04/10/2023 Units: mg/L Nitrate + Nitrite, Total, as N ND LCS -EPA 353.2 QC Sample ID: BXD0274-BS1 Batch: BXD0274 Date Prepared: 04/10/2023 Date Analyzed: 04/10/2023 Units: mg/L Nitrate + Nitrite, Total, as N 90.8 80 -120 1.82 Matrix Spike -EPA 353.2 QC Sample ID: BXD0274-MSI Batch: BXD0274 QC Source Sample: XXXXXXX-XX Date Prepared: 04/10/2023 Date Analyzed: 04/10/2023 Units: mg/L Nitrate + Nitrite, Total, as N 86.1 80 -120 0.952 0.0910 QC Sample ID: BXD0274-MS2 Batch: BXD0274 QC Source Sample: 23C2301-0l Date Prepared: 04/10/2023 Date Analyzed: 04/10/2023 Units: mg/L Nitrate + Nitrite, Total, as N 77.9 80 -120 0.876 0.0970 QM-01 O -The MS recovery was outside acceptance limits but passed Duplicate Spike acceptance limits. The batch was accepted based on the acceptability of the MSD as the batch Spike. QC Sample ID: BXD0274-MS3 Batch: BXD0274 QC Source Sample: XXXXXXX-XX Date Prepared: 04/10/2023 Date Analyzed: 04/10/2023 Units: mg/L Nitrate+ Nitrite, Total, as N 83.8 80 -120 2.23 1.39 Matrix Spike Dup -EPA 353.2 QC Sample ID: BXD0274-MSDI Batch: BXD0274 QC Source Sample: XXXXXXX-XX Date Prepared: 04/10/2023 Date Analyzed: 04/10/2023 Units: mg/L Nitrate+ Nitrite, Total, as N 90.0 4.01 80-120 20 0.991 0.0910 QC Sample ID: BXD0274-MSD2 Batch: BXD0274 QC Source Sample: 23C2301-0l Date Prepared: 04/10/2023 Date Analyzed: 04/10/2023 Units: mg/L Nitrate+ Nitrite, Total, as N 81.4 3.92 80 -120 20 0.911 0.0970 QC Sample ID: BXD0274-MSD3 Batch: BXD0274 QC Source Sample: :XXXXXXX-XX Date Prepared: 04/10/2023 Date Analyzed: 04/10/2023 Units: Nitrate+ Nitrite, Total, as N 78.2 2.54 80 -120 20 2.18 1.39 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#: 23C2301 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 0.100 1.00 1.00 0.100 1.00 1.00 0.100 1.00 1.00 0.100 1.00 1.00 0.100 1.00 Page 15 of 20 QC Report for Work Order {WO) -23C2301 Analyte % Rec RPD Limits RPD Max Result Source Cone SpkValue MRL OF Blank -EPA 8260D /5030A QC Sample ID: BXD0083-BLK1 Batch: BXD0083 Date Prepared: 04/04/2023 Date Analyzed: 04/04/2023 Units: ug/L Acetone ND 10.0 1.00 Benzene ND 1.0 1.00 Carbon Tetrachloride ND 1.0 1.00 Chloroform ND 1.0 1.00 Chloromethane ND 1.0 1.00 Methyl Ethyl Ketone ND 1.0 1.00 Methylene Chloride ND 2.0 1.00 Naphthalene ND 1.0 1.00 Tetrahydrofuran ND 1.0 1.00 Toluene ND 1.0 1.00 Xylenes, total ND 1.0 1.00 QC Sample ID: BXD0083-BLK2 Batch: BXD0083 Date Prepared: 04/04/2023 Date Analyzed: 04/04/2023 Units: ug/L Acetone ND 10.0 1.00 Benzene ND 1.0 1.00 Carbon Tetrachloride ND 1.0 1.00 Chloroform ND 1.0 1.00 Chloromethane ND 1.0 1.00 Methyl Ethyl Ketone ND 1.0 1.00 Methylene Chloride ND 2.0 1.00 Naphthalene ND 1.0 1.00 Tetrahydrofuran ND 1.0 1.00 Toluene ND 1.0 1.00 Xylenes, total ND 1.0 1.00 LCS -EPA 8260D /5030A QC Sample ID: BXD0083-BS 1 Batch: BXD0083 Date Prepared: 04/04/2023 Date Analyzed: 04/04/2023 Units: ug/L Acetone 83.6 70-130 83.6 100 10.0 1.00 Benzene 94.6 70 -130 9.46 10.0 0.4 1.00 Carbon Tetrachloride 91 .1 70-130 9.11 10.0 1.0 1.00 Chloroform 82.8 70-130 8.28 10.0 1.0 1.00 Chloromethane 90.2 70-130 9.02 10.0 1.0 1.00 Methyl Ethyl Ketone 94.5 70-130 9.45 10.0 1.0 1.00 Methylene Chloride 80.4 70-130 8.04 10.0 2.0 1.00 Naphthalene 90.8 70 -130 9.08 10.0 1.0 1.00 Tetrahydrofuran 76.8 70 -130 15.4 20.0 1.0 1.00 Toluene 88.8 70-130 8.88 10.0 1.0 1.00 Xylenes, total 96.7 70 -130 29.0 30.0 1.0 1.00 Matrix Spike -EPA 8260D /5030A QC Sample ID: BXD0083-MS1 Batch: BXD0083 QC Source Sample: :XXXXXXX-XX Date Prepared: 04/04/2023 Date Analyzed: 04/04/2023 Units: ug/L Acetone 77.8 70 -130 389 ND 500 50.0 1.00 Benzene 105 70-130 96.2 43.5 50.0 2.0 1.00 Carbon Tetrachloride 101 70 -130 50.6 ND 50.0 5.0 1.00 Chloroform 88.6 70-130 44.3 ND 50.0 5.0 1.00 Chloromethane 106 70-130 53.0 ND 50.0 5.0 1.00 Methyl Ethyl Ketone 83.1 70-130 41.6 ND 50.0 5.0 1.00 Methylene Chloride 83.8 70 -130 41.9 ND 50.0 10.0 1.00 Naphthalene 88.8 70-130 44.4 ND 50.0 5.0 1.00 CtF WO#: 23C2301 www.ChemtechFord.com Page 16 of 20 Analyte QC Sample ID: BXD0083-MS1 Date Prepared: 04/04/2023 Tetrahydrofuran Toluene Xylenes, total QC Sample ID: BXD0083-MS2 Date Prepared: 04/04/2023 Acetone Benzene Carbon Tetrachloride Chloroform Chloromethane Methyl Ethyl Ketone Methylene Chloride Naphthalene Tetrahydrofuran Toluene Xylenes, total QC Sample ID: BXD0083-MSD1 Date Prepared: 04/04/2023 Acetone Benzene Carbon Tetrachloride Chloroform Chloromethane Methyl Ethyl Ketone Methylene Chloride Naphthalene Tetrahydrofuran Toluene Xylenes, total QC Sample ID: BXD0083-MSD2 Date Prepared: 04/04/2023 Acetone Benzene Carbon Tetrachloride Chloroform Chloromethane Methyl Ethyl Ketone Methylene Chloride Naphthalene Tetrahydrofuran Toluene Xylenes, total CtF WO#: 23C2301 www.ChemtechFord.com QC Report for Work Order (WO) -23C2301 %Rec RPD Limits RPD Max Result Source Cone Spk Value MRL DF Matrix Spike -EPA 8260D /5030A (cont.) Batch: BXD0083 QC Source Sample: XXXXXXX-XX Date Analyzed: 04/04/2023 Units: ug/L 74.5 70 -130 74.5 ND 100 5.0 1.00 97.9 70 -130 49.0 ND 50.0 5.0 1.00 103 70 -130 158 4.29 150 5.0 1.00 Batch: BXD0083 QC Source Sample: 23C2301-0l Date Analyzed: 04/04/2023 Units: ug/L 80.3 70-130 402 ND 500 50.0 1.00 94.0 70-130 47.0 ND 50.0 2.0 1.00 88.5 70 -130 44.2 ND 50.0 5.0 1.00 81.3 70 -130 40.6 ND 50.0 5.0 1.00 97.0 70 -130 48.5 ND 50.0 5.0 1.00 86.9 70 -130 43.4 ND 50.0 5.0 1.00 78.9 70-130 39.4 ND 50.0 10.0 1.00 88.7 70-130 44.4 ND 50.0 5.0 1.00 73.2 70 -130 73.2 ND 100 5.0 1.00 90.4 70 -130 45.2 ND 50.0 5.0 1.00 103 70 -130 155 ND 150 5.0 1.00 Matrix Spike Dup -EPA 8260D /5030A Batch: BXD0083 QC Source Sample: XXXXXXX-XX Date Analyzed: 04/04/2023 Units: ug/L 76.9 1.10 70 -130 20 385 ND 500 50.0 1.00 96.3 9.12 70 -130 20 91.6 43.5 50.0 2.0 1.00 99.2 1.90 70 -130 20 49.6 ND 50.0 5.0 1.00 85.8 3.21 70 -130 20 42.9 ND 50.0 5.0 1.00 109 2.79 70 -130 20 54.6 ND 50.0 5.0 1.00 86.5 4.01 70-130 20 43.2 ND 50.0 5.0 1.00 81.4 2.91 70 -130 20 40.7 ND 50.0 10.0 1.00 90.8 2.23 70-130 20 45.4 ND 50.0 5.0 1.00 70.4 5.73 70 -130 20 70.4 ND 100 5.0 1.00 96.7 1.23 70 -130 20 48.4 ND 50.0 5.0 1.00 101 1.77 70 -130 20 156 4.29 150 5.0 1.00 Batch: BXD0083 QC Source Sample: 23C2301-0l Date Analyzed: 04/04/2023 Units: ug/L 84.8 5.38 70 -130 20 424 ND 500 50.0 1.00 93.0 1.07 70 -130 20 46.5 ND 50.0 2.0 1.00 88.1 0.453 70 -130 20 44.0 ND 50.0 5.0 1.00 83.7 2.91 70 -130 20 41.8 ND 50.0 5.0 1.00 96.1 0.932 70-130 20 48.0 ND 50.0 5.0 1.00 90.2 3.73 70-130 20 45.1 ND 50.0 5.0 1.00 82.4 4.34 70-130 20 41.2 ND 50.0 10.0 1.00 89.4 0.786 70-130 20 44.7 ND 50.0 5.0 1.00 75.8 3.49 70 -130 20 75.8 ND 100 5.0 1.00 89.4 1.11 70 -130 20 44.7 ND 50.0 5.0 1.00 96.9 6.17 70 -130 20 145 ND 150 5.0 1.00 Page 17 of 20 Analyte QC Sample ID: BXC1363-BLKI Date Prepared: 03/31/2023 Alkalinity -Bicarbonate (as CaCO3) Alkalinity -Carbonate (as CaCO3) QC Sample ID: BXC1363-DUPI Date Prepared: 03/31/2023 Alkalinity -Bicarbonate (as CaCO3) Alkalinity -Carbonate (as CaCO3) Alkalinity -Hydroxide (as CaCO3) Alkalinity -Total (as CaCO3) QC Sample ID: BXC1363-BS1 Date Prepared: 03/31/2023 Alkalinity -Total (as CaCO3) CtF WO#: 23C2301 www.ChemtechFord.com QC Report for Work Order (WO) -23C2301 % Rec RPO Limits RPO Max Result Source Cone Blank -SM 2320 B Batch: BXC1363 Date Analyzed: 03/31/2023 Units: mg/L ND ND Duplicate -SM 2320 B Batch: BXC1363 QC Source Sample: 23C2301-01 Date Analyzed: 03/31/2023 Units: mg/L 2.22 20 297 290 20 ND ND 20 ND ND 2.22 20 297 290 LCS -SM 2320 B Batch: BXC1363 Date Analyzed: 03/31/2023 Units: mg/L 96.3 90 -110 227 Spk Value MRL OF 1.0 1.00 1.0 1.00 1.0 1.00 1.0 1.00 1.0 1.00 1.0 1.00 236 1.0 1.00 Page 18 of 20 Analyte QC Sample ID: BXD00l 7-BLKl Date Prepared: 04/03/2023 Total Dissolved Solids (TDS) QC Sample ID: BXD0017-DUP1 Date Prepared: 04/03/2023 Total Dissolved Solids (TDS) QC Sample ID: BXD0017-DUP2 Date Prepared: 04/03/2023 Total Dissolved Solids (TDS) QC Sample ID: BXD00l 7-BSI Date Prepared: 04/03/2023 Total Dissolved Solids (TDS) CtF WO#: 23C2301 www.ChemtechFord.com QC Report for Work Order (WO) -23C2301 %Rec RPD Limits RPO Max Result Source Cone Blank -SM 2540 C Batch: BXD00 17 Date Analyzed: 04/03/2023 Units: mg/L ND Duplicate -SM 2540 C Batch: BXD00I 7 QC Source Sample: XXXXXXX-XX Date Analyzed: 04/03/2023 Units: mg/L 10 30100 29800 Batch: BXD00 17 QC Source Sample: 23C2301-01 Date Analyzed: 04/03/2023 Units: mg/L 3 10 1060 1030 LCS -SM 2540 C Batch: BXD00I 7 Date Analyzed: 04/03/2023 Units: mg/L 100 90-110 400 Spk Value MRL DF 10 1.00 500 1.00 20 1.00 400 20 1.00 Page 19 of 20 Surrogates Report for Work Order (WO) -23C2301 QCID Analyte %Rec LCL UCL Result Spk Value Blank -EPA 8260D /5030A BXD0083-BLK2 1,2-Dichloroethane-d4 76.0 64.2 126 7.60 10.0 BXD0083-BLK1 1,2-Dichloroethane-d4 75.5 64.2 126 7.55 10.0 BXD0083-BLK1 4-Bromofluorobenzene 101 71.4 125 10.1 10.0 BXD0083-BLK2 4-Bromofluorobenzene 101 71.4 125 10.1 10.0 BXD0083-BLK2 Toluene-dB 100 63.2 129 10.0 10.0 BXD0083-BLK1 Toluene-dB 98.9 63.2 129 9.89 10.0 LCS -EPA 8260D /5030A BXD0083-BS 1 1,2-Dichloroethane-d4 80.2 64.2 126 8.02 10.0 BXD0083-BS 1 4-Bromofluorobenzene 104 71.4 125 10.4 10.0 BXD0083-BS 1 Toluene-dB 100 63.2 129 10.0 10.0 Matrix Spike -EPA 8260D /5030A BXD0083-MS2 1,2-Dichloroethane-d4 79.4 64.2 126 39.7 50.0 BXD0083-MS1 1,2-Dichloroethane-d4 78.7 64.2 126 39.4 50.0 BXD0083-MS1 4-Bromofluorobenzene 103 71.4 125 51.7 50.0 BXD0083-MS2 4-Bromofluorobenzene 101 71.4 125 50.7 50.0 BXD0083-MS 1 Toluene-dB 101 63.2 129 50.6 50.0 BXD0083-MS2 Toluene-dB 100 63.2 129 50.1 50.0 Matrix Spike Dup -EPA 8260D /5030A BXD0083-MSD2 1,2-Dichloroethane-d4 78.9 64.2 126 39.4 50.0 BXD0083-MSD1 1,2-Dichloroethane-d4 78.0 64.2 126 39.0 50.0 BXD0083-MSD1 4-Bromofluorobenzene 101 71.4 125 50.4 50.0 BXD0083-MSD2 4-Bromofluorobenzene 103 71.4 125 51.3 50.0 BXD0083-MSD1 Toluene-dB 102 63.2 129 50.8 50.0 BXD0083-MSD2 Toluene-dB 100 63.2 129 50.0 50.0 Surrogate Recoveries (Field Samples) LabNumber Analyte Result SpkLvl %Rec LCL UCL 8260 Low Level Volatiles 23C2301-01 Toluene-dB 23C2301-01 4-B romofl uorobenzene 23C2301-01 1,2-Dichloroethane-d4 8260 Low Level Volatiles 23C2301-02 Toluene-dB 23C2301-02 4-Bromofluorobenzene 23C2301-02 1,2-Dichloroethane-d4 CtF WO#: 23C2301 www.ChemtechFord.com 10.6 10.0 106 63.2 129 10.3 10.0 103 71.4 125 8.36 10.0 83.6 64.2 126 10.0 10.0 100 63.2 129 10.1 10.0 101 71.4 125 7.33 10.0 73.3 64.2 126 Batch OF BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 BXD0083 1.00 Qualifier Page 20 of 20 1€jij• I Laboratories LLC a member of The GEL Group INC i'GFo.:"0;12 Charlestor, SC2S1417 2c1~{1 S~h'aoe Road Ctiar1e:;ton SC 29407 P 34~. 556 8171 F 84~, 76G 1 '173 April 28, 2023 Mr. Garrin Palmer Energy Fuels Resources (USA), Inc. 6425 S. Highway 191 Blanding, Utah 84511 Re: Analytical for Annual Seeps & Springs 2023 Work Order: 617042 Dear Mr. Palmer: GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the sample(s) we received on April 05, 2023. This original data report has been prepared and reviewed in accordance with GEL's standard operating procedures. Test results for NELAP or ISO 17025 accredited tests are verified to meet the requirements of those standards, with any exceptions noted. The results reported relate only to the items tested and to the sample as received by the laboratory. These results may not be reproduced except as full reports without approval by the laboratory. Copies ofGEL's accreditations and certifications can be found on our website at www.gel.com. Our policy is to provide high quality, personalized analytical services to enable you to meet your analytical needs on time every time. We trust that you will find everything in order and to your satisfaction. If you have any questions, please do not hesitate to call me at (843) 556-8171, ext. 4289. Purchase Order: DW16138 Enclosures Julie Robinson Project Manager II II I I II 1111111111111111 111111 gel.com Page 1 of 12 SDG: 617042 Energy Fuels Resources (USA), Inc. Analytical for SDG: 617042 April 28, 2023 La Identification: GEL Laboratories LLC 2040 Savage Road Charleston, South Carolina 29407 (843) 556-8171 Summary: Receipt Narrative for Energy Fuels Resources (USA), Inc. SDG: 617042 ample receipt: The sample arrived at GEL Laboratories LLC, Charleston, South Carolina on April 05, 2023 for analysis. The sample was delivered with proper chain of custody documentation and signatures. All sample containers arrived without any visible signs of tampering or breakage. There are no additional comments concerning sample receipt. Sample Identification: The laboratory received the following sample: Laboratory ID Client ID 617042001 Westwater Seep Case Narrative: Sample analyses were conducted using methodology as outlined in GEL's Standard Operating Procedures. Any technical or administrative problems during analysis, data review, and reduction are contained in the analytical case narratives in the enclosed data package. The enclosed data package contains the following sections: Case Narrative, Chain of Custody, Cooler Receipt Checklist, Data Package Qualifier Definitions and data from the following fractions: Radiochemistry. Page 2 of 12 SDG: 617042 Julie Robinson Project Manager ?;je~' I • :.-f, ,J . -' ENERGY FUELS RESOURCES Sheet 1 of 1 Samples Shipped to: GEL Laboratories, LLC Contact: Tanner Holliday -2-0-40-S-av_a_g_e---:R=-o-a_d_________ Ph: 435 678 2221 Charleston, SC 29407 tholliday@energyfuels.com (843) 556 8171 Chain of Custody/Sampling Analysis Request Project Samplers Name Samplers Signature Annual Seeps & Springs l ),,,iM JC-#~/ 2023 Tanner Holliday Time Sample ID Date Collected Collected Laboratory Analysis Requested Westwater Seep 3/30/2023 800 Gross Aloha Comments: Please send report to Kathy Weinel at kweinel@enerqyfuels.com Relinquished Byf~ ~cql(f(/(., /fit,. Tanner Holliday Relinquished By:(Signature) Page 3 of 12 SDG: 617042 Date/Time ~7 3/31/2023 11 1130 Date/Time Re !R!PSRClOO;EXIT; !R!MTYP99;EXIT; !R!spsz6;stm0;exit; ~ I Labomtories LLC Received By:MVH l'~i,,l< FedEx Express FedEx Gmu1K~l'icld Services Courier Other Carrier and Tracking Number Suspected Hazard Information ~ ~ ""U Nel Counts> IUOcpm on sr\Jllpks not marked "r.idiooc1ive", conl.u:t lhe R.IJ.iiltion Safely Grnup fur further invrstig;tlinn, A)Shi d as a DOT Hazardous? B) Did the client designate the Slllnples arc tu be received os rndioncLivc"..' Cl Did the RSO classify the samples as radioactive? D} Did (he clicnl desi ace sam les are hazanlous? El Did the RSO identi ossihle hazards? Sample Receipt Criteria Shipping containers received intact and scaled? 2 Chain of custody documents included with shipment'/ J Samples requiring cold preservation within (0 < 6 dco. C)•• 4 Daily check perforn,ed and pa.s.sed on IR temperature gun? 5 Sample containers intact and sealed'' 6 Samples requiring chemical preservation at proper pH? 7 Do any samples require Volatile Analysis? 8 Samples received within holding time·> 9 Sample ID'.s on COC match !D's on boll! ·? 12 Are sample containers identi flable as GEL rovided bv use of GEL labels? 13 COC form is properly signed in relinquished/received sections? Comments (Use Continuation Form if neede<ll: Page 4 of 12 SDG: 617042 Hazan! Class Shipped: UN#: lrUN29JO, Is the Radioactive Shipment Survey Compliw11? Yes_ No_ COC nolnlion or radioactive stickers on cont::uner.. equal client designation. Maximum Net Count'i Observed"' (Observed Counts -Area Background Counts): Classified as: Rad I Rad 2 Rad 3 COC notation ur ha?..ard labels on container,;; equal client dcsign:ition_ If Dor Eis yes, select Hazards below. PCB's Flammable Foreign Soil RCRA Asbestos Beryllium Other. Corumcnls/Qualificrs (Required for Non-Conforming Items) Cin:le Applicuble: Seal~ broken Dn1nagcd conwiner Leaking c1,nlainer Other (dcscri~) Circle AppUc:itiJc: Clicnl con1::ic1cd :ind provided COC COC crcalcd 111mn rcccipl Prcscrviltion Mcll1t1LI: Wet h.:I! kt: Packs Dcy le Other. *all temperarures are recorded in Celsius Temperature Device Serial #:.~IR~2~·=2~1 ____ _ Secondary Temperature Device Scriol ~ (If Applicoble): Circle Applicnblc: Seals broken Damaged container Leaking. conrnincr 01hcr (describe) I , ,s, are Encore.\ or Soil Kils (ll'l!sent for <0Ud<7 Yes_ No_ NA_Clr )'OS, toke 10 VOA Fr«1.erl Do l!q11lil VOA v"11, ro1111tin :id~ pn:m"atlon? Yc.L_ No_ N,\_(lf m1l:Jiown. s,len No> Arc liquid VOA vials free arheod,pocc? Yes_ No_ NA_ ID's and Lcsls affected: ID's am] container.; affected: Circle Applicable: No dales on conlniners No limes on container.; COC missing info Olh~r (d~scribc) Circle Applicable: No con1oincr count on COC 01hcr (de!icribc) Cin:le Appli'---able: Nol relinqui~hcd 01her (describe) GL·CHL·SR-001 Rev 7 GEL Laboratories LLC -Login Review Report GEL Work Order/SDG: 617042 Client SDG: 617042 Annual Seeps & Springs 2023 Project Manager: Project Name: Purchase Order: Package Level: EDD Format: Julie Robinson DNMI00106 Analytical for DW16138 LEVEL3 EIM_DNMI GELID Client Sample ID Client Sample Desc. Collect Date & Time Work Order Due Date: 03-MA Y-23 Package Due Date: EDD Due Date: Due Date: JAR1 Receive Time # of Date & Time Zone Cont. 03-MAY-23 03-MAY-23 03-MAY-23 Lab Matrix Report Date: 28-APR-23 Work Order: 617042 Page 1 of 2 Collector: C Prelogin #: 202205150319 Project Workdef ID: 1329132 SDG Status: Closed Logged by: Fax Days to Due Date Process CofC# Prelog Lab Field Group QC QC 617042001 Westwater Seep 30-MAR-23 08:00 05-APR-23 10:00 -2 GROUND WATER 20 Client Sample ID -001 Westwater Seep Status Tests/Methods REVW GFPC, Total Alpha Radium, Liquid Product: GFCTORAL Workdef ID: 1461303 Method: EPA 903.0 Product Description: GFPC, Total Alpha Radium, Liquid Samples: 001 Parmname Check: All parmnames scheduled properly CAS# Parmname Gross Radium Alpha Product Reference Fax Date PM Comments Gross Alpha In Product Group? No Group Name: Client RDL or PQL& Unit Reporting Units pCi/L Action Product Name Description Samples Contingent Tests Login Requirements: Requirement Page 5 of 12 SDG: 617042 Include? Comments Aux Data Group Reference: Path: Drinking Water (903.0 or 9315) Product Reference: Gross Alpha Moisture Correction: "As Received" Parm Included Included Custom Function in Sample? in QC? List? REG y y No Receive Codes GEL Laboratories LLC -Login Review Report Peer Review by: ___________ _ Work Order (SDG#), PO# Checked? ____ _ Page 6 of 12 SDG: 617042 Report Date: 28-APR-23 Work Order: 617042 Page 2 of 2 C of C signed in receiver location? _____ _ List of current GEL Certifications as of 28 April 2023 State Certification Alabama 42200 I Alaska 17-018 Alaska Drinking Water SC00012 ~ Arkansas 88-0651 CLIA 42D0904046 -California 2940 Colorado SC00012 --Connecticut PH-0169 I DoD ELAP/ ISOl 7025 A2LA 2567.01 Florida NELAP E87156 I i Foreign Soils Permit P330-15-00283, P330-15-00253 Georgia SC00012 Georgia SDW A 967 I Hawaii SC00012 Idaho SC00012 I Illinois NELAP 200029 ~ Indiana C-SC-01 Kansas NELAP E-10332 I Kentucky SDW A 90129 Kentucky Wastewater 90129 Louisiana Drinking Water LA024 Louisiana NELAP 03046 (AI33904) Maine 2019020 Maryland 270 Massachusetts M-SC012 Massachusetts PF AS Approv Letter --Michigan 9976 Mississippi SC00012 Nebraska NE-OS-26-13 Nevada scooo 122023-4 New Hampshire NELAP 2054 New Jersey NELAP SC002 I New Mexico SC00012 ! New York NELAP 11501 North Carolina 233 North Carolina SDW A 45709 North Dakota R-158 Oklahoma 2022-160 Pennsylvania NELAP 68-00485 Puerto Rico SC00012 S. Carolina Radiochem 10120002 I Sanitation Districts ofL 9255651 I South Carolina Chemistry 10120001 Tennessee TN 02934 I Texas NELAP Tl 04 704235-22-20 UtahNELAP SC000122022-37 I Vermont VT87156 Virginia NELAP 460202 I ----Washington C780 Page 7 of 12 SDG: 617042 Radiochemistry Technical Case Narrative Energy Fuels Resources SDG #: 617042 Product: GFPC, Total Alpha Radium, Liquid Analytical Method: EPA 903.0 Analytical Procedure: GL-RAD-A-044 REV# 10 Analytical Batch: 2412334 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# 617042001 1205372613 1205372614 1205372615 1205372616 1205372617 Client ample Identification Westwater Seep Method Blank (MB) 617042001 (Westwater Seep) Sample Duplicate (DUP) 617042001 (Westwater Seep) Matrix Spike (MS) 617042001 (Westwater Seep) Matrix Spike Duplicate (MSD) Laboratory Control Sample (LCS) The samples in this SDG were analyzed on an "as received" basis. Data Summary: All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions. Technical Information Recounts Sample 1205372615 (Westwater SeepMS) was recounted due to low recovery. The recount is reported. Sample 1205372613 (MB) was recounted due to a suspected blank false positive. The recount is reported. Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative. Page 8 of 12 SDG: 617042 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Qualifier Definition Report for DNMIO0I Energy Fuels Resources (USA), Inc. Client SDG: 617042 GEL Work Order: 617042 The Qualifiers in this report are defined as follows: * A quality control analyte recovery is outside of specified acceptance criteria * * Analyte is a surrogate compound U Analyte was analyzed for, but not detected above the CRDL. ReviewN alidation GEL requires all analytical data to be verified by a qualified data reviewer. In addition, all CLP-like deliverables receive a third level review of the fractional data package. The following data validator verified the information presented in this data report: Signature:~ 6~ Name: Kenshalla Oston Date: 28 APR 2023 Title: Analyst I Page 9 of 12 SDG: 617042 GEL LABO RA TORIES LLC 2040 Savage Road Charleston, SC 29407 -(843) 556-8171 -www.gel.com QC Summary Energy Fuels Resources (USA), Inc. 6425 S. Highway 191 Blanding, Utah Contact: Mr. Garrin Palmer Workorder: 617042 Parmname NOM Sam le Rad Gas Flow Batch 2412334 QC1205372614 617042001 DUP Gross Radium Alpha u 0.108 u Uncertainty +l-0.243 QC1205372617 LCS Gross Radium Alpha 540 Uncertainty QC1205372613 MB Gross Radium Alpha u Uncertainty QC1205372615 617042001 MS Gross Radium Alpha 2150 u 0.108 Uncertainty +l-0.243 QC1205372616 617042001 MSD Gross Radium Alpha 2110 u 0.108 Uncertainty +l-0.243 Notes: Counting Uncertainty is calculated at the 68% confidence level (I-sigma). The Qualifiers in this report are defined as follows: Analyte has been confirmed by GCIMS analysis -0.0407 +l-0.119 455 +l-5.53 0.00405 +l-0.122 1660 +l-15.9 1590 +/-20.3 Units RPD% pCi/L NIA pCi/L pCi/L pCilL pCi/L 4.2 C B A X H For General Chemistry and Organic analysis the target analyte was detected in the associated blank. The TIC is a suspected aldol-condensation product ** < > UI BD y h R Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Analytical holding time was exceeded Analyte is a surrogate compound Result is less than value reported Result is greater than value reported Gamma Spectroscopy--Uncertain identification Results are either below the MDC or tracer recovery is low QC Samples were not spiked with this compound Preparation or preservation holding time was exceeded Sample results are rejected Reoort Date: April 28, 2023 REC% Rane Anlst NIA HH3 84.3 (75%-125%) 77.2 (75%-125%) 75.3 (0%-20%) A RPO of sample and duplicate evaluated using +I-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry. Page 11 of 12 SDG: 617042 Page 1 of 2 Date Time 04120123 13:56 04120123 13:57 04125123 1 7: 13 04125123 17:29 04120123 13:57 GEL LABO RA TORIES LLC 2040 Savage Road Charleston, SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder: 617042 Parmname NOM Uojls RPD¾ REC% Ran e Anlst D Results are reported from a diluted aliquot of the sample NIA RPO or %Recovery limits do not apply. ND Analyte concentration is not detected above the detection limit M M if above MDC and less than LLD NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier F Estimated Value M Matrix Related Failure UJ Gamma Spectroscopy--Uncertain identification Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER. K Analyte present. Reported value may be biased high. Actual value is expected to be lower. UL Not considered detected. The associated number is the reported concentration, which may be inaccurate due to a low bias. L Analyte present. Reported value may be biased low. Actual value is expected to be higher. NI See case narrative U Analyte was analyzed for, but not detected above the CRDL. Page 2 of 2 Date Time NIA indicates that spike recovery limits do not apply when sample concentration exceeds spike cone. by a factor of 4 or more or %RPO not applicable. A The Relative Percent Difference (RPO) obtained from the sample duplicate (DUP) is evaluated against the acceptance criteria when the sample is greater than five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +I-the RL is used to evaluate the DUP result. * Indicates that a Quality Control parameter was not within specifications. For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations. Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary. Page 12 of 12 SDG: 617042 e,ENERGYFUELS VIA E-MAIL AND EXPRESS DELIVERY April 18, 2023 Mr. Doug Hansen Director, Division of Waste Management and Radiation Control State of Utah Department of Environmental Quality 195 North 1950 West Salt Lake City, UT 84116 Re: White Mesa Mill Annual Seeps and Springs Sampling- Energy Fuels Resources (USA) Inc. 225 Union Blvd. Suite 600 Lakewood, CO, US, 80228 303 974 2140 www.ener0 fuels.com Notice Pursuant to Utah Groundwater Discharge Permit UGW370004. Dear Mr. Hansen: Energy Fuels Resources (USA) Inc. ("EFRJ") is providing this letter to notify the Division of Waste Management and Radiation Control ("DWMRC") of the White Mesa Mill's (the "Mill's") annual seeps and springs sampling event as required by Utah Groundwater Discharge Permit ( the "GWDP") UGW370004. The Mill plans to begin the sampling event on Tuesday, May 16, 2023. The Mill staff will attempt to sample the following locations: Coral Canyon Seep, Corral Seep, Ruin Springs, Cottonwood Seep, Westwater Seep, and Entrance Seep, consistent with the GWDP and the Sampling Plan for Seeps and Springs (the "Sampling Plan"). If you have any questions or require further assistance, please contact Tanner Holliday at (435) 678-4115. Yours very truly, ENERGY FUELS RESOURCES (USA) INC. Kathy Weinel Director, Regulatory Compliance CC: Garrin Palmer Logan Shumway Tanner Holliday David Frydenlund Scott Bakken Jordan App [ijij11 [ Laboratories LLc a member of The GEL Group INC PO Bol: $0712 Char1 es ton SC 29417 2(140 Savage Road ct·,aneston SC 20407 P 84'., 556 8171 F 84J 766 1178 June 08, 2023 Mr. Garrin Palmer Energy Fuels Resources (USA), Inc. 6425 S. Highway 191 Blanding, Utah 84511 Re: Analytical for Annual Seeps & Springs 2023 Work Order: 622849 Dear Mr. Palmer: GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the sample(s) we received on May 19, 2023. This original data report has been prepared and reviewed in accordance with GEL's standard operating procedures. Test results for NELAP or ISO 17025 accredited tests are verified to meet the requirements of those standards, with any exceptions noted. The results reported relate only to the items tested and to the sample as received by the laboratory. These results may not be reproduced except as full reports without approval by the laboratory. Copies ofGEL's accreditations and certifications can be found on our website at www.gel.com. Our policy is to provide high quality, personalized analytical services to enable you to meet your analytical needs on time every time. We trust that you will find everything in order and to your satisfaction. If you have any questions, please do not hesitate to call me at (843) 556-8 I 71, ext. 4289. Purchase Order: DWl6138 Enclosures Sincerely, ~w.,,. Jessica Ward for Julie Robinson Project Manager 11111111111111111 II II II I II 1111 gel.com Page 1 of 15 SDG: 622849 Energy Fuels Resources (USA), Inc. Analytical for SDG: 622849 June 08, 2023 Laboratory :Identification: GEL Laboratories LLC 2040 Savage Road Charleston, South Carolina 29407 (843) 556-8171 Summary: Receipt Narrative for Energy Fuels Resources (USA), Inc. SDG: 622849 Sample receipt: The samples arrived at GEL Laboratories LLC, Charleston, South Carolina on May 19, 2023 for analysis. The samples were delivered with proper chain of custody documentation and signatures. All sample containers arrived without any visible signs of tampering or breakage. There are no additional comments concerning sample receipt. Sample Identification: The laboratory received the following samples: Case Narrative: Laboratory ID 622849001 622849002 622849003 622849004 Client ID Entrance Spring Ruin Spring Cottonwood Spring Back Spring Sample analyses were conducted using methodology as outlined in GEL's Standard Operating Procedures. Any technical or administrative problems during analysis, data review, and reduction are contained in the analytical case narratives in the enclosed data package. The enclosed data package contains the following sections: Case Narrative, Chain of Custody, Cooler Receipt Checklist, Data Package Qualifier Definitions and data from the following fractions: Radiochemistry. Page 2 of 15 SDG: 622849 Jessica Ward for Julie Robinson Project Manager ~ Sheet 1 of 1 &ENERGY FUELS RESOURCES CHAIN OF CUSTODY Samples Shipped to: GEL Laboratories, LLC Contact: Tanner Holliday -2-0-40~S-av_a_g_e....,R __ o_a.;_d_________ Ph: 435 678 2221 Charleston, SC 29407 tholliday@energyfuels.com (843) 556 8171 Chain of Custody/Sampling Analysis Request Project Samplers Name Samplers Signature Annual Seeps & Springs lJ aJU\LX_ JI~;) 2023 Tanner Holliday V Time Sample ID Date Collected Collected Laboratory Analysis Requested Entrance Sprinq 5/16/2023 830 Gross Alpha Ruin Sprinq 5/16/2023 935 Gross Alpha Cottonwood Spring 5/16/2023 1025 Gross Alpha Sack Spring 5/16/2023 935 Gross Alpha Comments: Please send report to Kathy Weinel at kweinel@energyfuels.com Relinquis,~nature) ~ ~y Tann er Ho Iii day Relinquished By:(Signature) Page 3 of 15 SDG: 622849 Date/Time Received By:(Signature} 5/17/2023 1130 Date/Time Receivei::I By:(Signature) m3!1 I LalJoralories LLC -SAMPLE RECEIPT & REVIEW FORM Client:} '\I\_ Jf V '\ ' SDG/AR/COC/Worl< Order: to7_7 r\4'°1 V Receive¥:' MVH I Dute Rccch•ef: ~· \C. .. A Jr'>-J .~ \._J-_ -_G _•a,1,c FcUEx Express Fc<lEx Gmu UPS F cld Services Courier O1hcr Currier and Tracking :'.'lumber )2Y87\(4~2.Cf~CI l80 4? Sn,;pcclcd Hazard lnfurmatiun ~ z •y Ne1 Coums > I CXkpm on ~:unplcs nOl marked "ratlio.clivc", conwct Lhe R::uJiation Safety Group for furthl!r invcsli~a1ion. ;- [\i Hazan! Class Shippod: UN#: A)Sh.ippcd as a DOT Haz.irc.h1LLr.'! lfUN29 I0, Is lhc R:idiooctive Ship~nl Survey Compliant? Yi!s_ No_ .I Bl Did the client dl!sigmuc: t..hc: samples an: to be V COC notnt..ion or rndioocrive slickers on conlaincrs equaJ clicnl desigrmtion. received as rndioa:ti,,c'.' -- C) Did LI~ RSO classify the samples ::i..,; /tnximum N~1 Counls Observed* (Obscf'\'cd Counts -Areri Bock.ground Counts): ~•t1Mr mR/Hr r.,dioocti ve? V / Clus,;illcd us: Rad I Rad 2 Rad J " P> Did Lhe diem dcsi1:ma1e sa.mriles are hiuardous? \I er notalion m-hat.ard label,; on oon!Iiners equnl diC'nl. Jcsil:'10\ion. I ✓ ~fD or Eis yes, select HlllaTdc;; below. PCB's Flammable Forci£J1 Snil RCRA Asbcs1os Beryllium Other: E,) Did Lhi: RSO illen1irv 111'lsi..ihle ha.GITT.ls':' Sum pk Receipt Criteria ~ -( i Commcnlsi'QualHiers (Requin'CI for Nun-Confonning Hems) :. Shipping con1aincrs rccCi\'cd intact and Llrdc ,\pplicahlc: Scab h111kc11 Oama~J. cmu:aincr l...c;tkin~ crnnaincr Od1er { dc!.cribc t I scaled? \/ Ch:::iin or custody documents included C-1rdc Arrlil:ahli:: Clu,:111 Llllllac1ccl arn.J prodded coc CDC c1 ca1cU up1m receipt 2 with shipment'! -Pn.-5Cn•olliun L\·telhod: Wet Ice Ice Packs Dryic'CJ 01her: ,,,J l 3 Snmplcs requiring cold prcscrv.ition ""all 1emper'Jlurc:s are recorded in Cc"biu.o; TD·IP: within CO < 6 dcg. C)?~ Daily check pcr[ormc<l ao<l passed on IR Tcmpenalure Oc,•icc Serial#: IR2-21 4 temperature gun? \ Second.1r)•Te:mperature 01!, ice Serial:: (If Applicablt:): Cin::lc ,\pplk ahlc: Seal~ hmJ.:cn Dama1,"Cll cnn1:iincr U:iJ.:ing conwiucr 01.hc1 (dc.~criht!) 5 Sample containers intact and scaled? Samples requiring chc1nic:il preservation Sample IDs and Co1uai11crs Affci.:1cll: 6 at proper pH? Ir Pn=!icn"Jlion oililct.l, Lut/1: lr):~S-. urt' E1k."tlf1:~ or Soil Kils ('trt:.!"11.for solidc:.'! Yes ~('t-NA_(I! ~s. lak~ lo VOA fn.tactl Do ,rny s,11nplcs ll'quin: Volatile Ao Uqull'.l VOA, iols ronu!in :.::hi ~rv:ainn'> Yes No NA {If unknown, <.cl«t ~(lj 7 Analysis'! V Are liquid VOA ~i.lls (n:e ortwe~c·.• Ya_ No_ NA_ 511mplc ID's ,uni i.:on1aincrs affcc1cd: lD's and 1es1s affected: 8 Samples received \\ ithin holding time? Sample ID's on COC 01a1ch ID'son ID's and comaincr.,; al feclet..l: 9 bottles? Dale & time on COC m,.ud, c.huc & lime Circle Applicahle: Nu d:.11e~ on co111.ii11cr.. Nn tin~s on container.. COC mis)ing info Other ldescrib.!) 10 on bollles? Number of conlaincrs received match Grc\c Appli1..-:Jhlt!: No cnnt.Uncr counl on COC Other (describe) II number indil.."alcd on COC? 12 Arc sample cnnlaim:r~ idcnlifiahlc a!io GEL orm·idcd bv use or GEL labels? 13 COC form is properly signed in C1rclt: Applie3hh: Nol relinquished Other (llescribi:) rclinquishcd/rcccivcd sec lions? Commenls (Use Cominu.uion Fonn if needed): PM (or PMAI review: Initials~ Date s -1221--:2.s Page? ___ or __ I GL-CHL-SR-001 Rev 7 Page 4 of 15 SDG: 622849 GEL Laboratories LLC -Login Review Report GEL Work Order/SDG: 622849 Client SDG: 622849 Annual Seeps & Springs 2023 Project Manager: Project Name: Purchase Order: Package Level: EDD Format: Julie Robinson DNMI00106 Analytical for DW16138 LEVEL3 EIM_DNMI GELID Client Sample ID Client Sample Desc. 622849001 Entrance Spring 622849002 Ruin Spring 622849003 Cottonwood Spring 622849004 Back Spring Collect Date & Time 16-MAY-23 08:30 16-MAY-23 09:35 16-MAY-23 10:25 16-MAY-23 09:35 Work Order Due Date: Package Due Date: EDD Due Date: Due Date: JW1 Receive Time #of Date & Time Zone Cont. 19-MAY-23 10:00 -2 1 19-MAY-23 10:00 -2 1 19-MAY-23 10:00 -2 1 19-MAY-23 10:00 -2 1 19-JUN-23 19-JUN-23 19-JUN-23 19-JUN-23 Lab Matrix WATER WATER WATER WATER Report Date: 08-JUN-23 Work Order: 622849 Page 1 of 2 Collector: C Prelogin #: 202305173256 Project Workdef ID: 1329132 Fax Due Date SDG Status: Closed Logged by: Days to Process CofC# 20 20 20 20 Prelog Lab Field Group QC QC Receive Client Sample ID Status Tests/Methods Product Reference Fax Date PM Comments Aux Data Codes --001 Entrance Spring --002 Ruin Spring --003 Cottonwood Spring --004 Back Spring REVW GFPC, Total Alpha Radium, Liquid REVW GFPC, Total Alpha Radium, Liquid REVW GFPC, Total Alpha Radium, Liquid REVW GFPC, Total Alpha Radium, Liquid Product: GFCTORAL Workdef ID: 1461303 Method: EPA 903.0 Product Description: GFPC, Total Alpha Radium, Liquid Samples: 001, 002, 003, 004 Parmname Check: All parmnames scheduled properly CAS# Parmname Gross Radium Alpha Gross Alpha Gross Alpha Gross Alpha Gross Alpha In Product Group? No Action Product Name Description Contingent Tests Page 5 of 15 SDG: 622849 Group Name: Client RDL or PQL & Unit Samples Reporting Units pCi/L Group Reference: Path: Drinking Water (903.0 or 9315) Product Reference: Gross Alpha Moisture Correction: "As Received" Parm Included Included Custom Function in Sample? in QC? List? REG y y No GEL Laboratories LLC -Login Review Report Login Requirements: Requirement Include? Comments Peer Review by: ___________ _ Work Order (SDG#), PO# Checked? ____ _ ' Page 6 of 15 SDG: 622849 Report Date: 08-JUN-23 Work Order: 622849 Page 2 of 2 C of C signed in receiver location? _____ _ List of current GEL Certifications as of 08 June 2023 State Certification Alabama 42200 Alaska 17-018 Alaska Drinking Water SC000l2 Arkansas 88-0651 CLIA 42D0904046 California 2940 Colorado SC000l2 Connecticut PH-0169 OoO ELAP/ ISOl 7025 A2LA 2567.01 Florida NELAP E87156 Foreign Soils Permit P330-15-00283, P330-l 5-00253 Georgia SC000l2 Georgia SOW A 967 Hawaii SC00012 Idaho SC00012 Illinois NELAP 200029 Indiana C-SC-01 Kansas NELAP E-10332 Kentucky SDWA 90129 Kentucky Wastewater 90129 Louisiana Drinking Water LA024 Louisiana NELAP 03046 (AI33904) Maine 2019020 Maryland 270 Massachusetts M-SC0l2 Massachusetts PF AS Approv Letter Michigan 9976 Mississippi SC000l2 Nebraska NE-OS-26-13 Nevada SC000l22023-4 New Hampshire NELAP 2054 New Jersey NELAP SC002 New Mexico SC000l2 New York NELAP 11501 North Carolina 233 North Carolina SOW A 45709 North Dakota R-158 Oklahoma 2022-160 Pennsylvania NELAP 68-00485 Puerto Rico SC00012 S. Carolina Radiochem 10120002 Sanitation Districts of L 9255651 South Carolina Chemistry 10120001 Tennessee TN 02934 Texas NELAP Tl 04 704235-22-20 Utah NELAP SC000l22022-37 Vermont VT87156 Virginia NELAP 460202 Washington C780 Page 7 of 15 SDG: 622849 Radiochemistry Technical Case Narrative Energy Fuels Resources SDG #: 622849 Product: GFPC, Total Alpha Radium, Liquid nalytical Method: EPA 903.0 Analytical Procedure: GL-RAD-A-044 REV# 10 Analytical Batch: 2435523 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# 622849001 622849002 622849003 622849004 1205417802 1205417803 1205417804 1205417805 1205417806 Client Sample Identification Entrance Spring Ruin Spring Cottonwood Spring Back Spring Method Blank (MB) 62223700l(NonSDG) Sample Duplicate (DUP) 622237001(NonSDG) Matrix Spike (MS) 62223700l(NonSDG) Matrix Spike Duplicate (MSD) Laboratory Control Sample (LCS) The samples in this SDG were analyzed on an "as received" basis. Data Summary: There are no exceptions, anomalies or deviations from the specified methods. All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable. Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative. Page 8 of 15 SDG: 622849 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Qualifier Definition Report for DNMI00l Energy Fuels Resources (USA), Inc. Client SDG: 622849 GEL Work Order: 622849 The Qualifiers in this report are defined as follows: * A quality control analyte recovery is outside of specified acceptance criteria ** Analyte is a surrogate compound U Analyte was analyzed for, but not detected above the CRDL. ReviewN alidation GEL requires all analytical data to be verified by a qualified data reviewer. In addition, all CLP-like deliverables receive a third level review of the fractional data package. The following data validator verified the information presented in this data report: Signature: Date: 18 JUN 2023 Page 9 of 15 SDG: 622849 Name: Kate Gellatly Title: Analyst 1 PT GEL LABORATORIES LLC 2040 Savage Road Charleston, SC 29407 -(843) 556-8171 -www.gel.com QC Summary Reoort Date: June 18, 2023 Energy Fuels Resources (USA), Inc. 6425 S. Highway 191 Blanding, Utah Contact: Mr. Garrin Palmer Workorder: 622849 Parmname NOM Units RPO% REC% Ran e Anlst Rad Gas Flow Batch 2435523 QC1205417803 622237001 DUP Gross Radium Alpha QC1205417806 LCS Gross Radium Alpha QC1205417802 MB Gross Radium Alpha QC1205417804 622237001 MS Gross Radium Alpha QC1205417805 622237001 MSD Gross Radium Alpha Notes: Uncertainty 534 Uncertainty Uncertainty 2190 Uncertainty 2160 Uncertainty 3.15 +/-0.524 3.15 +/-0.524 3.15 +/-0.524 u Counting Uncertainty is calculated at the 68% confidence level (I-sigma). The Qualifiers in this report are defined as follows: C Analyte has been confirmed by GC/MS analysis 2.41 +/-0.471 542 +/-6.58 0.0128 +/-0. 192 1980 +/-24.9 2310 +/-29.7 pCi/L 26.6 pCi/L pCi/L pCi/L pCi/L 15.4 B A X H For General Chemistry and Organic analysis the target analyte was detected in the associated blank. The TIC is a suspected aldol-condensation product ** < > UI BD y h R Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Analytical holding time was exceeded Analyte is a surrogate compound Result is less than value reported Result is greater than value reported Gamma Spectroscopy--Uncertain identification Results are either below the MDC or tracer recovery is low QC Samples were not spiked with this compound Preparation or preservation holding time was exceeded Sample results are rejected (0%-100%) 101 (75%-125%) 90.4 (75%-125%) (0%-20%) RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry. Page 14 of 15 SDG: 622849 JEl Page 1 of 2 Date Time 06/07 /23 11 :54 06/07 /23 11 :54 06/07/23 11:54 06/07 /23 11 :54 06/07 /23 11 :54 GEL LABO RA TORIES LLC 2040 Savage Road Charleston, SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder: 622849 Page 2 of 2 Parmname NOM Sample Units RPD% REC% Ran e Anlst Date Time D Results are reported from a diluted aliquot of the sample NIA RPD or %Recovery limits do not apply. ND Analyte concentration is not detected above the detection limit M M if above MDC and less than LLD NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier F Estimated Value M Matrix Related Failure UJ Gamma Spectroscopy--Uncertain identification Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER. K Analyte present. Reported value may be biased high. Actual value is expected to be lower. UL Not considered detected. The associated number is the reported concentration, which may be inaccurate due to a low bias. L Analyte present. Reported value may be biased low. Actual value is expected to be higher. NI See case narrative U Analyte was analyzed for, but not detected above the CRDL. NIA indicates that spike recovery limits do not apply when sample concentration exceeds spike cone. by a factor of 4 or more or %RPD not applicable. /\ The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptance criteria when the sample is greater than five times (SX) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than SX the RL, a control limit of +I-the RL is used to evaluate the DUP result. * Indicates that a Quality Control parameter was not within specifications. For PS, PSD, and SDIL T results, the values listed are the measured amounts, not final concentrations. Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary. Page 15 of 15 SDG: 622849 TabE Quality Assurance and Data Validation Tables Table E-1 Holding Time Evaluation Cottonwood Entrance Back Spring West Water Required Holding Time Spring Seep ( duplicate of Ruin Spring Seep Ruin Spring) Carbonate 14 days OK OK OK OK OK Bicarbonate 14 days OK OK OK OK OK Calcium 6 months OK OK OK OK OK Chloride 28 days OK OK OK OK OK Fluoride 28 days OK OK OK OK OK Magnesium 6 months OK OK OK OK OK Nitrogen-Ammonia 28 days OK OK OK OK OK Nitrogen-Nitrate 28 days OK OK OK OK OK Potassium 6 months OK OK OK OK OK Sodium 6 months OK OK OK OK OK Sulfate 28 days OK OK OK OK OK pH (s.u.) NIA OK OK OK OK OK TDS 7 days OK OK OK OK OK 6 months (except mercury which is 28 Metals days) OK OK OK OK OK Radiologies 6 months OK OK OK OK OK YOCS (including THF) 14 days OK OK OK OK OK * -Corral Spring, and Corral Canyon were all dry and no samples were collected. E-2 Laboratory Receipt Temperature Check Work Order Number/Lab Set ID Receipt Temp CTF -23C2301 l.3°C CTF -23El617 -0.7°C GEL-617042 NIA GEL-622849 NIA NIA= These shipments contained samples for the analysis of Gross Alpha only. Per Table 1 in the approved QAP, samples submitted for Gross Alpha analyses do not have a sample temperature requirement. E-3: Analytical Method Check -Routine Samples Parameter QAP/Permit Method Method Used by Lab Ammonia (as N) A4500-NH3 G or E350. l E350.l Nitrate+ Nitrite (as N) E 353.1 or E353.2 E353.2 Metals E 200.7 or E200.8 E200.7, E200.8 Mercury E200.7 or E200.8 or E245.l E245.l Gross Alpha E900.0 or E900. l or E903 .0 E903.0 voes SW8260B or SW8260C or SW8260D SW8260D Chloride A4500-Cl B, A4500-Cl E, or E300.0 E300.0 Fluoride A4500-F C or E300.0 E300.0 Sulfate A4500-SO4 E or E300.0 E300.0 TDS A2540C A2540C Carbonate as CO3, Bicarbonate as HCO3 A2320B A2320B Calcium, Magnesium, Potassium, Sodium E200.7 E200.7 E-4 Reporting Limit Evaluation Parameter Permit-Specified RL Ammonia (as N) 25 mg/L Nitrate+ Nitrite (as N) 10 mg/L Metals ug/L Arsenic 50 Beryllium 4 Cadmium 5 Chromium 100 Cobalt 730 Copper 1300 Iron 11000 Lead 15 Manganese 800 Mercury 2 Molybdenum 40 Nickel 100 Selenium 50 Silver 100 Thallium 2 Tin 17000 Uranium 30 Vanadium 60 Zinc 5000 Gross Alpha 15 VOCs ug/L Acetone 700 Benzene 5 Carbon tetrachloride 5 Chloroform 70 Chloromethane 30 MEK 4000 Methylene Chloride 5 Naphthalene 100 Tetrahydrofuran 46 Toluene 1000 Xylenes 10000 Major Ions mg/L Chloride 1 Fluoride 4 Sulfate 1 TDS 10 Carbonate as CO3, Bicarbonate as HCO3 Not Specified Calcium, Magnesium, Potassium, Sodium Not Specified All analyses were reported to the required RLs unless noted in the text. E-5: Trip Blank Evaluation Blank Sample Date Analyte Result (ug/L) Acetone ND Benzene ND Carbon tetrachloride ND Chloroform ND Chloromethane ND 23C2301 3/30/2023 Methylene chloride ND Methyl Ethyl Ketone ND Naphthalene ND Tetrahydrofuran ND Toluene ND Xylenes, Total ND Acetone ND Benzene ND Carbon tetrachloride ND Chloroform ND Chloromethane ND 23El617 5/16/2023 Methylene chloride ND Methyl Ethyl Ketone ND Naphthalene ND Tetrahydrofuran ND Toluene ND Xylenes, Total ND E-6 Duplicate Sample Relative Percent Difference Back Spring Major Ions (mg/I) Ruin Spring (Duplicate of Ruin RPO% Spring) Carbonate <1.0 <1.0 N/C Bicarbonate 191 190 0.5 Calcium 136 136 0.0 Chloride 18.3 22.8 21.9 Fluoride 0.364 0.4 13.1 Magnesium 30.3 30.4 0.3 Nitrogen-Ammonia <0.2 <0.2 N/C Nitrogen-Nitrate 1.2 1.23 2.5 Potassium 3 3.0 0.0 Sodium 105 104 1.0 Sulfate 448 490 9.0 TDS 881 926 5.0 Metals (ug/1) Arsenic <0.5 <0.5 N/C Beryllium <0.5 <0.5 N/C Cadmium <0.2 <0.2 N/C Chromium 2.4 2.1 13.3 Cobalt <0.5 <0.5 N/C Copper <1.0 <1.0 N/C Iron <20 40 N/C Lead <0.5 <0.5 N/C Manganese 2.4 <0.5 N/C Mercury 0.28 <0.15 N/C Molybdenum 17.1 16.8 1.8 Nickel 1.3 1.2 8.0 Selenium 12.3 12.6 2.4 Silver <0.5 <0.5 N/C Thallium <0.2 <0.2 N/C Tin <20 20 N/C Uranium 9.3 9.2 I.I Vanadium 0.9 0.8 11.8 Zinc <10 <IO N/C Radiologies (pCi/1) Gross Alpha <1.00 <1.00 N/C voes (ug/L) Acetone <10 <10 N/C Benzene <1.0 <1.0 N/C Carbon tetrachloride <1.0 <1.0 N/C Chloroform <1.0 <1.0 N/C Chloromethane <1.0 <1.0 N/C MEK <1.0 <1.0 N/C Methylene Chloride <2.0 <2.0 N/C E-6 Duplicate Sample Relative Percent Difference Back Spring Major Ions (mg/I) Ruin Spring (Duplicate of Ruin RPO% Spring) Naphthalene <1.0 <1.0 N/C Tetrahydrofuran <1.0 <1.0 NIC Toluene <LO <1.0 N!C Xylenes <1.0 <1.0 N/C N/C ""Not Calculated Rl'D exceeds 11.K' QAP 11mlL r.11 .::'.0%. E-7 Radiologies Counting Error Gross Alpha Counting Gross Alpha minus Rn& U Error ::S Within Sample ID minusRn&U Precision(±) 20% GWQS GWQS? Cottonwood Spring <1.0 0.238 NIA 15 NIA Entrance Seep <1.0 0.323 NIA 15 NIA Back Spring ( duplicate of Cottonwodd Spring) <1.0 0.208 NIA 15 NIA Ruin Spring <1.0 0.207 NIA 15 NIA Westwater Seep <1.0 0.243 NIA 15 NIA NIA -The sample results are non-detect and the QAP required checks are not applicable. E-8: Laboratory Matrix QC Matrix Spike % Recovery Comparison MSD REC RPD Lab Report Well Analyte MS%REC %REC Range RPD LIMIT 23E1617 Entrance Spring Manganese* ** ** 70-130 NC 20 23E1617 NA Chloride 140 139 80-120 0.391 20 23El617 NA Fluoride 120 121 80-120 0.393 20 23El617 NA Chloride 454 438 80-120 0.223 20 23El617 NA Fluoride 132 137 80-120 2.79 20 Entrance Spring Chloride 193 195 80-120 0.161 20 23El617 Fluoride 167 172 80-120 1.93 20 23C2301 NA Fluoride 79.5 81.3 80-120 1.93 20 23C2301 Westwater Spring Sulfate 134 117 80-120 4.45 20 23C2301 Westwater Spring Nitrogen-Nitrate 77.9 81.4 80-120 3.92 20 23C2301 NA Nitrogen-Nitrate 83.8 78.2 80-120 2.54 20 * Recovery was not calculated as the analyte level in the sample was greater than 4 times the spike amount ** CTF routine QC does not include a MOS for metals analyzed by 200.8. Precision is determined by other QC samples as allowable by the analytical method. NA = QC was not performed on an EFRI sample. Laboratory Duplicate% Recovery Comparison All Laboratory Duplicate Recoveries were within the laboratory established acceptance limits. Laboratory Control Sample Lab Report Analyte LCS%REC REC Range 23 E 1617 Chloromethane 67.1 70-130 Surrogate % Recovery All surrogate recoveries were within the laboratory established acceptance limits. Method/Laboratory Reagent Blank detections All method blank results were within the laboratory established acceptance limits. TabF CSV Transmittal Kathy Weinel From: Sent: To: Cc: Subject: Attachments: Dear Mr. Goble, Kathy Weinel Tuesday, January 2, 2024 12:56 PM Phillip Goble 'Dean Henderson'; David Frydenlund; Garrin Palmer; Logan Shumway; Scott Bakken; Jordan Christine App Transmittal of CSV Files White Mesa Mill 2023 Annual Seeps and Springs Monitoring 23E1617 FINAL EnergyFuels-Client 07 Jun 23 1253.csv; 617042.csv; 622849.csv; 23(2301 FINAL EnergyFuels-Client 20 Apr 23 1300.csv Attached to this e-mail are the electronic copies of laboratory results for the annual seeps and springs monitoring conducted at the White Mesa Mill during 2023, in Comma Separated Value (CSV) format. Please contact me at 303-389-4134 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 KWeinel@energyfuels.com 225 Union Blvd., Suite 600 Lakewood, CO 80228 http://www.energyfuels.com This e-mail is intended for the exclusive use of person(s) mentioned as the recipient(s). This message and any attached files with it are confidential and may contain privileged or proprietary information. If you are not the intended recipient(s) please delete this message and notify the sender. You may not use, distribute print or copy this message if you are not the intended recipient(s). 1