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HomeMy WebLinkAboutDAQ-2024-011603NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS (NESHAPS) 2024 RADON FLUX MEASUREMENT PROGRAM UT AIR QUALITY ID 14169 ANFIELD RESOURCES HOLDING CORP. SHOOTARING CANYON MILL TICABOO, UTAH 84533 NOVEMBER 15, 2024 PREPARED FOR: ANFIELD RESOURCES HOLDING CORP. SHOOTARING CANYON MILL HWY 276 12 MILES NORTH OF BULLFROG P. O. BOX 2101 LAKE POWELL, UTAH 84533 PREPARED BY: R AND D ENTERPRISES, INC. P.O. BOX 3321 CASPER, WY 82602 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 1 of 139 TABLE OF CONTENTS PAGE CERTIFICATION -40 CFR PART 61.254 (A)(4) ............................................................................... 3 INTRODUCTION……………………………………………………………………………………………..4 SITE DESCRIPTION ....................................................................................................................... 4 REGULATORY REQUIREMENTS AND REFERENCES ......................................................................... 5 SAMPLING METHODOLOGY........................................................................................................... 5 FIELD OPERATIONS ..................................................................................................................... 6 SAMPLE LOCATIONS,IDENTIFICATION, AND PLACEMENT ................................................................ 6 QUALITY CONTROL ...................................................................................................................... 7 SAMPLING PROCEDURES ............................................................................................................. 7 SAMPLE CUSTODY ....................................................................................................................... 7 CALIBRATION PROCEDURES AND FREQUENCY .............................................................................. 7 INTERNAL QUALITY CONTROL CHECKS AND FREQUENCY .............................................................. 8 DATA PRECISION,ACCURACY AND COMPLETENESS ...................................................................... 8 APPENDIX A SUMMARY TABLE OF ANALYTICAL RESULTS,PLACEMENT GRID AND LOCATION MAP…9 APPENDIX B LABORATORY ANALYTICAL RESULTS AND CERTIFICATIONS…………………………....13 APPENDIX C STANDARD OPERATING PROCEDURES………………………..…………………..……...89 APPENDIX D PHOTOGRAPHS………………………………………..……………………..……………138 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 2 of 139 CERTIFICATION - 40 CFR PART 61.254 (a)(4) I certify under penalty of law that I have personally examined and am familiar with the information submitted herein and based on my inquiry of those individuals immediately responsible for obtaining the information, I believe that the submitted information is true, accurate and complete. I am aware that there are significant penalties for submitting false information including the possibility of fine and imprisonment. See, 18 U.S.C. 1001. ANFIELD RESOURCES HOLDING CORP. - CORPORATE OFFICER November 12, 2024 JOSHUA BLEAK, CHIEF EXECUTIVE OFFICER DATE Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 3 of 139 INTRODUCTION In January 2017, Anfield Resources Holding Corp. (Company) notified the State of Utah, Department of Environmental Quality (DEQ), Division of Air Quality (DAQ), that they would perform radon flux measurements on a quarterly basis, as identified in Method 115, 2.1.1 Frequency of Flux Measurement. The Company’s site personnel, and Radiation Safety contractors, S.A. Garling and R.A. Garling, would provide the workforce to perform the quarterly radon flux measurements utilizing twenty-six (26) Large Area Activated Charcoal Canister (LAACC) collectors located on site. Pace Analytical, Inc., a certified, commercial analytical laboratory, provides unexposed activated charcoal charged cans and analytical services. July 2, 2020, G. Sorenson, Environmental Scientist, Utah Division of Air Quality, requested that the Shootaring Canyon Mill, UT Air Quality Division, Site ID 14169 be included with all correspondence and reports. The Company provided the State of Utah, Department of Environmental Quality (DEQ), Division of Air Quality (DAQ) a tentative (weather dependent) quarterly sampling schedule. Once quarterly sampling dates were established, UDEQ-DAQ was provided advanced notice [Emails dated 09/15/2023, 12/07/2023, 02/07/2024, 06/09/2024, 08/09/2024]. The UDEQ-DAQ did not have a representative present during the sampling events. The regulation, 40 CFR Part 61, Method 115, Section 2.1.7 Calculations states: The mean flux for each region of the pile and for the total pile shall be calculated and reported as follows: …The mean radon flux for each region of the pile shall be calculated by summing all individual flux measurements for the region and dividing by the total number of flux measurements for the region. The Shootaring Canyon Mill, UT Air Quality Site Identification Number 14169, tailings cell consists of a single, one-half acre region of dry tailings, with several feet of interim cover of dry native material on the top surface (Appendix A). In 2024, a total of one hundred (100) radon flux measurements were measured on a quarterly frequency, consisting of twenty-five (25) measurements per quarter. The resulting average radon flux for 2024 was 13.68 pCi/m2-sec (2023 was 15 pCi/m2-sec ) with a standard deviation of 8.6 pCi/m2-sec, a minimum sample measurement of 0.7 pCi/m2-sec (MDL of 0.5) and a maximum sample measure of 59.2 pCi/m2-sec. In 2024, the Company complied with the 20 pCi/m2-sec standard for the tailings cell radon flux emissions regulation. The purpose of this report is to provide a general description of the placement, handling, analytical measurements, and calculation of radon flux measured from Large Area Activated Charcoal Canister (LAACC), also known as EPA Method 115. SITE DESCRIPTION The Shootaring Canyon Mill facility is in Garfield County in southeastern Utah, approximately two miles north of Ticaboo, Utah. The mill and tailings disposal cell were constructed between 1978 and 1981 and began operations in 1982 for the purpose of extracting uranium. The Nuclear Regulatory Commission issued a source materials license on September 21, 1979. Between April and August 1982, the mill produced approximately 25,000 cubic yards of tailings which were deposited in the disposal cell and covered with native soil. The disposal cell is contained in an area of approximately 2,508 m2, equivalent to approximately one-half acre. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 4 of 139 In August 2004, the State of Utah, was granted an amendment, from the US NRC, …to assume regulatory authority over the possession and use of 11e.(2) byproduct material, including the facilities that generate such material. March of 2005, the State of Utah, Department of Environmental Quality, Division of Radiation Control, issued a Radioactive Material License (RML), UT0900480, to Plateau Resources Ltd for the Shootaring Canyon Mill Site. Utah provided the appropriate approvals for the Shootaring Canyon Mill RML to be successfully transferred throughout the years as the property ownership changed. REGULATORY REQUIREMENTS AND REFERENCES Radon emissions from the Shootaring Canyon Mill are regulated by the State of Utah’s Division of Radiation Control under RML UT0900480 and administered by the Utah Division of Air Quality under standards set by the Environmental Protection Agency (EPA) in 40 CFR Part 61, Subpart W. The State of Utah, by reference, incorporated these rules in Utah Administrative Code R307- 214-1, These regulations are a subset of the National Emission Standards for Hazardous Air Pollutants (NESHAPs). According to subsection 61.252 Standard, (a) radon-222 emissions to ambient air from an existing uranium mill tailings pile shall not exceed an average of 20 pCi/m2-s for each pile or region. Subsection 61.253, Determining Compliance, states that: Compliance with the emission standard in this subpart shall be determined annually through the use of Method 115 of Appendix B. EPA Method 115, per 40 Code of Federal Regulations (CFR), Part 61, Environmental Protection Agency, National Emission Standards for Hazardous Air Pollutants (NESHAPs): Radionuclides: Final Rule and Notice of Reconsideration, December 15, 1989, updated April 2017. EPA Method 115’s technical information referenced EPA’s publication 52015-85-029, Radon Flux Measurements on Gardinier and Royster Phosphogypsum Piles Near Tampa and Mulberry, Florida. SAMPLING METHODOLOGY Radon emissions were measured using Large Area Activated Charcoal Canisters (LAACC) collectors in conformance with 40 CFR, Part 61, Appendix B, Method 115, Monitoring for Radon-222 Emissions. LAACCs are passive gas adsorption sampling devices used to determine the flux rate of radon-222 gas from a surface. The canisters were constructed using a 10-inch diameter PVC end cap containing a bed of approximately 180 grams of activated, granular activated charcoal. The prepared charcoal was placed in the canisters on a support grid on top of a 1/2-inch-thick layer of foam and secured with a retaining ring under 1/2 inches of foam (see diagram in SOP, Appendix C). Twenty-five (25) canisters were deployed quarterly, throughout the covered tailings disposal cell region, on a marked, predetermined grid. Each charged canister was placed directly onto the surface (face down, without the collectors penetrating the cell cover material); local native material was used to seal (berm at base of the collector) the LAACC to the surface of the cell; collectors were exposed to the surface for 24 hours. Radon gas adsorbs onto the charcoal and the subsequent radioactive decay of the entrained radon gas (222Rn) generates the bismuth-214 radon daughter (aka RaC). The radon progeny isotope emits a characteristic gamma photon that can be detected through gamma spectroscopy. The original total activity of the adsorbed radon gas was calculated from the gamma ray measurements using calibration factors derived from cross-calibration of standard sources containing known total activities of radium-226, in secular equilibrium with radon-222, and with identical geometry to the collected samples. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 5 of 139 After 24-hour exposure period, the LAACCs are removed and transported to an enclosed work area so that the exposed charcoal can be transferred to steel sample containers, sealed, identified, labeled, and packaged to be transported to Pace Analytical’s Sheridan, WY laboratory facility. FIELD OPERATIONS The site staff and contract radiation safety staff prepared the LAACCs and deployed following the SOP included in Appendix C. No sampling event was initiated within 24 hours of precipitation. During 2024, the standard sampling sequence from A-1 through A-10 followed by B-1 through B-10…and, so on was used. The individual radon flux results for 2024 compared to 2023 were variable, with the tailings pile overall average being similar. No conclusion could be made if there was a seasonal variance observed. The Company’s team has observed a direct correlation of tailings moisture content and compaction to radon emissions. Due to the sandy nature of the tailings, increased moisture content equates to increased radon emissions. This has also been observed for compaction on the tailings edges versus the center section of the tailings cell. Less compaction equates to elevated radon emissions. SHOOTARING CANYON MILL – UT SITE ID 14169 SUMMARY OF LAACC MEASUREMENTS QUARTER 1st QUARTEr 2024 2nd QUARTER 2024 3rd QUARTER 2024 4th QUARTER 2024 LOCATION RADON FLUX AVERAGE TABLE LAB ID S2401079 S2404146 S2407248 S2410070 DATE DEPLOYED 01/05/2024 04/06/2024 07/12/2024 10/01/2024 DATE RETRIEVED 01/06/2024 04/07/2024 07/13/2024 10/02/2024 SAMPLE LOCATIONS, IDENTIFICATION, AND PLACEMENT A grid system, consisting of one hundred sample points, with designated sample identification, was established at the onset of the radon emissions program. The grid locations are distributed throughout the approximate half-acre of the covered tailings disposal cell region. A sample identification number (ID) was assigned to every sample point, using a sequential alphanumeric system indicating the physical location within the region (e.g., A1…J10). The LAACC identification number and the corresponding tailings cell grid location were documented on the field note form, in addition to recording the date and time of placement. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 6 of 139 The LAACC units are systematically disassembled so that the premeasured blank charcoal media can be distributed in the media support grid. LAACC units are reassembled and prepared for deployment. The LAACC unit rim was then “sealed” to the surface, without penetrating, using a berm of local borrow material. QUALITY CONTROL In 2024, Anfield Resources Holding Corp. opted to continue to monitor radon-222 emissions on a quarterly basis. Each quarter, twenty-five samples are deployed, the 2024 sampling schedule is in the Field Operations Section. The contract laboratory provided the dried, weighed charcoal in sealed cans. All charcoal (new and recycled) was dried at 110°C, canned, and confirmed to be blank prior to shipment to the site. Approximately 180-gram aliquots of dried charcoal were weighed and placed in sample containers. The contract laboratory’s Radon Flux and Balance SOPs are included in Appendix C. At a minimum, ten percent (10%) of the sealed containers with unexposed charcoal were placed individually in the gamma spectroscopy instrument’s, shielded counting well, with the bottom of the container centered over the detector, and the background count rate is captured and uploaded into the Laboratory Information Management System (LIMS). The third-party laboratory counted blank charcoal prior to shipping to the site. Sample data is included with each report. The third-party commercial laboratory established a lower limit of detection of 0.5 pCi/m2-s for radon-222 emissions testing on charcoal. One duplicate field sample was measured per sampling event. The third-party laboratory provided duplicate sample results, which are documented in the analytical reports. Data is summarized for each quarter in a tabular format and is included in the analytical section of this report. Photographs were taken during each sampling event and have been included in this report. SAMPLING PROCEDURES Field forms were created to document the site/pile name, sample location, sample ID, deploy and retrieval date and time, meteorological conditions, and comments. SAMPLE CUSTODY A Chain of Custody was used for sample submittal and sequence of sample transfer. CALIBRATION PROCEDURES AND FREQUENCY Radioactive standards in a similar geometry and matrix (charcoal) of the samples were used in determining instrument calibration and functionality. Pace Analytical’s procedures for gamma counting complies with NELAP and EPA analytical methodologies to include Method 115. Pace Analytical’s SOP is included in Section C of this report. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 7 of 139 INTERNAL QUALITY CONTROL CHECKS AND FREQUENCY Method 115, Section D. states; The charcoal from every tenth exposed canister shall be recounted. Five percent of the samples analyzed shall be either blanks (charcoal having no radioactivity added) or samples spiked with known quantities of radium-226. This method is not conducive for sample spiking in the field or at the laboratory. Spiking individual samples would require the sample to be unsealed, which would compromise the integrity of the exposed charcoal, thereby rendering it invalid. Pace Analytical’s procedures for gamma counting, required for 115, complies with NELAP and EPA analytical methodologies. Pace Analytical’s SOP is included in Section C of this report. DATA PRECISION, ACCURACY AND COMPLETENESS The precision, accuracy, and completeness of measurements and analyses shall be within the following limits for samples measuring greater than 1.0 pCi/m2 -s. Precision: 10% - Precision refers to the closeness of two or more measurements to each other. In 2024, sixteen (16, 16%) samples were recounted, also known as duplicates, and complied with the criteria. Blank samples: 5% - in 2024, twenty (20, 20%) cans of blank charcoal were counted which complies with the criteria. Accuracy: ±10% - Accuracy refers to the closeness of a measured value to a standard or known value. In 2024, known samples identified as Method Blanks, Low and High Standards were counted before and after counting samples. All known method blanks (8), low (8), and high (8) standard samples complied with the criteria. Completeness: at least 85% of the measurements must yield usable results. In 2024, one hundred (100) samples met the completeness criteria. No collector was compromised by a seal failure due to precipitation or wind event, or breakage. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 8 of 139 APPENDIX A SUMMARY TABLE OF ANALYTICAL RESULTS, PLACEMENT GRID AND LOCATION MAP Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 9 of 139 ANFIELD RESOURCES HOLDING CORP. SHOOTARING CANYON MILL UT AIR QUALITY ID 14169 2024 RADON FLUX AVERAGE No. 1ST QUARTER 2ND QUARTER 3RD QUARTER 4TH QUARTER GRID ID pCi/m2-sec GRID ID pCi/m2-sec GRID ID pCi/m2-sec GRID ID pCi/m2-sec DATE DEPLOYED DATE DEPLOYED DATE DEPLOYED DATE DEPLOYED 01/05/2024 04/06/2024 07/12/2024 10/01/2024 DATE RETRIEVED DATE RETRIEVED DATE RETRIEVED DATE RETRIEVED 01/06/2024 04/07/2024 07/13/2024 10/02/2024 1 A-1 18.9 C-6 14.0 F-1 10.1 H-6 7.7 2 A-2 16.9 C-7 18.3 F-2 9.4 H-7 6.8 3 A-3 19.0 C-8 21.2 F-3 17.0 H-8 10.1 4 A-4 30.5 C-9 4.3 F-4 14.8 H-9 20.0 5 A-5 17.3 C-10 2.9 F-5 21.3 H-10 5.0 6 A-6 12.3 D-1 13.8 F-6 7.3 I-1 19.3 7 A-7 12.6 D-2 13.5 F-7 15.6 I-2 17.9 8 A-8 19.6 D-3 9.9 F-8 5.0 I-3 19.0 9 A-9 22.2 D-4 12.9 F-9 3.7 I-4 12.1 10 A-10 7.6 D-5 13.9 F-10 8.4 I-5 10.3 11 B-1 22.3 D-6 9.2 G-1 18.0 I-6 6.1 12 B-2 16.4 D-7 12.0 G-2 20.0 I-7 5.8 13 B-3 16.7 D-8 14.9 G-3 39.9 I-8 10.8 14 B-4 26.0 D-9 1.0 G-4 15.6 I-9 23.9 15 B-5 17.8 D-10 5.7 G-5 16.9 I-10 27.2 16 B-6 22.4 E-1 6.9 G-6 14.2 J-1 14.2 17 B-7 26.9 E-2 5.4 G-7 7.4 J-2 24.4 18 B-8 59.2 E-3 6.0 G-8 5.0 J-3 7.1 19 B-9 21.7 E-4 3.7 G-9 3.4 J-4 4.9 20 B-10 10.0 E-5 3.8 G-10 11.6 J-5 2.0 21 C-1 14.8 E-6 7.3 H-1 16.3 J-6 3.8 22 C-2 14.5 E-7 5.4 H-2 17.1 J-7 6.2 23 C-3 15.5 E-8 11.5 H-3 16.4 J-8 3.2 24 C-4 21.5 E-9 0.7 H-4 12.7 J-9 20.3 25 C-5 16.5 E-10 3.3 H-5 13.9 J-10 18.2 - MIN 7.6 MIN 0.7 MIN 3.4 MIN 2.0 - MAX 59.2 MAX 21.2 MAX 39.9 MAX 27.2 - STDEV 9.69 STDEV 5.5 STDEV 7.5 STDEV 7.55 - AVERAGE 19.96 AVERAGE 8.9 AVERAGE 13.6 AVERAGE 12.3 Data Type 2024 Data Set MIN pCi/m2-sec 0.7 MAX, pCi/m2-sec 59.2 STDEV, pCi/m2-sec 8.60 AVERAGE, pCi/m2-sec 13.68 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 10 of 139 ANFIELD RESOURCES HOLDING CORP. SHOOTARING CANYON MILL UT AIR QUALITY ID 14169 TAILINGS CELL GRID 2024 RADON FLUX RESULTS DATA SET SUMMARY MINIMUM 0.7 pCi/m2-sec MAXIMUM 59.2 pCi/m2-sec STANDARD DEVIATION 8.60 pCi/m2-sec AVERAGE 13.68 pCi/m2-sec GRID KEY RADON FLUX RESULT IN pCi/m2-sec NORTH WEST 10 9 8 7 6 5 4 3 2 1 NORTH EAST J 4TH-25 18.2 4TH -24 20.3 4TH -23 3.2 4TH -22 6.2 4TH -21 3.8 4TH-20 DUP 26 2.0/1.6 4TH -18 4.9 4TH -18 7.1 4TH -17 24.4 4TH -16 14.2 J I 4TH-15 27.2 4TH -14 23.9 4TH -13 10.8 4TH -12 5.8 4TH -11 6.1 4TH-10 10.3 4TH -8 12.1 4TH -8 19.0 4TH -7 17.9 4TH -6 19.3 I H 4TH-5 5.0 4TH -4 20.0 4TH -3 10.1 4TH -2 6.8 4TH -1 7.7 3RD – 25 13.9 3RD – 24 12.7 3RD – 23 16.4 3RD – 22 17.1 3RD – 21 16.3 H G 3RD – 20 DUP 2 11.6/9.3 3RD – 19 3.4 3RD – 18 5.0 3RD – 17 7.4 3RD – 16 14.2 3RD – 15 16.9 3RD – 14 15.6 3RD – 13 39.9 3RD – 12 20.0 3RD – 11 18.0 G F 3RD – 10 8.4 3RD – 9 3.7 3RD – 8 5.0 3RD – 7 15.6 3RD – 6 7.3 3RD – 5 21.3 3RD -4 14.8 3RD – 3 17.0 3RD – 2 9.4 3RD – 1 10.1 F E 2ND-25 3.3 2ND-24 0.7 2ND-23 11.5 2ND-22 5.4 2ND-21 7.3 2ND-20 3.8 2ND-19 3.7 2ND-18 6.0 2ND-17 5.4 2ND-16 6.9 E D 2ND-15 5.7 2ND-14 1.0 2ND-13 14.9 2ND-12 12.0 2ND-11 9.2 2ND-10 13.9 2ND-9 12.9 2ND-8 9.9 2ND-7 13.5 2ND-6 13.8 D C 2ND-5 2.9 2ND-4 4.3 2ND-3 21.2 2ND-2 18.3 2ND-1 DUP 26 14.0/14.7 1ST – 25 16.5 1ST – 24 21.5 1ST – 23 15.5 1ST – 22 14.5 1ST – 21 14.8 C B 1ST – 20 10.0 1ST – 19 21.7 1ST – 18 59.2 1ST – 17 26.9 1ST – 16 22.4 1ST – 15 17.8 1ST – 14 26.0 1ST – 13 16.7 1ST – 12 16.4 1ST – 11 22.3 B A 1ST – 10 7.6 1ST – 9 22.2 1ST – 8 19.6 1ST – 7 12.6 1ST – 6 12.3 1ST – 5 17.3 1ST – 4 30.5 1ST – 3 19.0 1ST – 2 16.9 1ST – 1 DUP 26 18.9/18.0 A SOUTH WEST 10 9 8 7 6 5 4 3 2 1 SOUTH EAST Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 11 of 139 T a i l i n g s D i s p o s a l C e l l L o c a t i o n An f i e l d R e s o u r c e s H o l d i n g C o r p . Sh o o t a r i n g C a n y o n M i l l S i t e 12 M i l e s N o r t h o f B u l l f r o g La k e P o w e l l , U T 8 4 5 3 3 20 2 4 R a d o n F l u x / N E S H A P s Lo c a t i o n M a p Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 12 of 139 APPENDIX B LABORATORY ANALYTICAL RESULTS AND CERTIFICATIONS 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‱㌠潦‱㌹ - CHAIN OF CUSTODY RECORD -Inter-Mountain Labs Sheridan, WY and Gillette, WY 1 1ofPage■lYIL All shaded fields must be completed.#WEBINTER-MOUNTAIN LABS This is a legal document; any misrepresentation may be construed as fraud. Sampler (Signature/Attestation of Authenticity)Telephone # 307 277 3861 Project IdentificationClient Name TeAq/sAq T^<qeR § sH-eRyL- ^arlinc:)ANFIELD RESOURCES HOLDING CORP.SHOOTARING CMP-UT AQ ID 14169 1ST QTR ANALYSES / PARAMETERSReport Address Contact Name ON FILE SHERYL GARLING SAGARLING@RDEINC.BIZEmail X307 277 3861Invoice Address Phone 13ON FILE Purchase Order#Quote # VERBAL REMARKSzOSAMPLE IDENTIFICATION LAB ID (Lab Use Only) DATE TIME Q#of LU SAMPLED Matrix Containers See field notes forDeployed Date 1/5/2024 date & time exposed,Retrival Date 1/6/2024 LAACC location & Can IDSLX26-LAACC Exposed Charcoal Cans 26 See Wade for required9 —030 4-Blank Charcoal Cans SL 4 X Method 115 REQUIRED-Unexposed cans/Do not Count, QA Before&After STDsreturn to inventrory ff1 Blank, Low & High StdLab select 4 sample dups SL 4 X 4 Dups requested Count ASAP Utah AQ Site ID14169 5EHE 6\i^Mt/sheryL <qnrLLiA,0 5 r 0^ ADDITIONAL REMARKSCOMPLIANCE INFORMATIONSHIPPING INFO MATRIX CODES TURN AROUND TIMES Check desired service * Standard turnaround Compliance Monitoring ? Program (SDWA, NPDES,...) NESHAP PWSID / Permit # j Y Chlorinated? . , Sample Disposal: Lab Xintamioii iitain labs. aeiiA ——— CONFIRM THAT 4 BLANKS AND 4 DUPS ARE* UPS □ FedEx □ USPS Water WT Soil SL Solid SD Filter FT Other OT LOGGED IN AND REPORTED □ RUSH - 5 Working Days □ URGENT-< 2 Working Days* Hand Carried*Rush & Urgent Surcharges will be applied Client Rev4.G Wet!'tutuui ilaii i Latas.Hne. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 14 of 139 PAGE. / OF 2. RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE LOCATION/TAILS CELL ID; SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169CLIENT: ANFIELD RESOURCES HOLDING CORP WEATHER CONDITION:PRECIP24HOCTRPriorANDDAYOF; T/f A QS of MIN TEMP: MM/DD/YY 01/05/2024 MM/DD/YY 01/06/2024 MM/DD/YY Gamma nR/hr2024 QUARTER SAMPLING EVENT TAILS LOCATION ID/COORD LAACC UNIT# CHARCOAL CAN# SITE FIELD STAFF INITIALS LAB SAMPLE COUNT MINUTES GROSS COUNTS COMMENTS24 HR TIME DEPLOY/SET 24 HR TIME RETRIEVE 24 HR TIME START COUNTID# RAG/SAG^AL- //A1 Hi-/SA /rs<f// n /y RAG/SA(^^AL- X!Al-DUP // ■' /y // - js-f 15 RAG/SAG^^AL- IS A2V/!?IS// / IS /2L -OD rag/sag/fiAL- dT A3 /4// ' /S /X : CiO n'. RAG/SA(^^LAL- X3 A4L /)// T /£/S' oj ft RAG/SAG /IAL- 2S AS /3‘- o I JC.Jf- IS t' RAG/SAG£AL- /y A6i’/)IS/X :o2///) RAG/SAG^^A7AL- 3 u ^// ●’ /4 —/3 : OX RAG/SAG^,ASAL- /// ■10, /? RAG/SAG;^^A9AL- 2 /-? -/<p—// ●● /4/5 $ rag/sag/l<?AL--u.//AlO /2 tc.I/: It/y /? rag/saq/^^—AL- 3 2 B1 /2-o‘f IC/S /9 /7 ■ /JS RkG/ShG/in,B2 /2 ●'AL- /6 //: /a/4 /y RAG/SAG///.J ~ 0/VB3AL- 7 / X ^ o C,tS/7 /9 n './a RAG/SAG/^— <s/rAL-B4ISA //-' /<^L2 iCSC rS RAG/SAG/y«AL- /<?B5 /5'//: /ffXO iH' 0 7 rag/sag/z -0/7AL- 3 B6 //: /7 / 2 ’O 7 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 15 of 139 PAGE 2 OF 2 RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE LOCATIONAAILS cell ID: SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169CLIENT: ANFIELD RESOURCES HOLDING CORP WEATHER CONDITION:PRECIP 24 HOUR Prior AND DAY OF:MIN TEMP: MM/DD/YY 01/05/2024 MM/DD/YY 01/06/2024 MM/DD/YY Gamma nR/hr2024 QUARTER SAMPLING EVENT TAILS LOCATION ID/COORD CHARCOAL CAN# SITE FIELD STAFF INITIALS LAB SAMPLE COUNT MINUTES GROSS COUNTS LAACC UNIT#COMMENTS24 HR TIME DEPLOY/SET 24 HR TIME RETRIEVE 24 HR TIME START COUNTID# RAG/SAG;^// ●'/ 7AL-25 ^B7 l2~o3 -^rtr^T /srn', /VRAG/SAG/jy,AL- ^B8 /2ir-n -(714 RAG/SAG Arr-ISB9AL- /5 27 iZ’-- 59ll'l 7 — RAGiSAGknAL- 9 BIO /C./y ' / 7-28/9 /^’o 3 RAG/SAGh/nAL- J3 /5-Cl //' /929^/-? ^/o rag/sag/mAL-C2 /5fO/9 //-/5 /2 ■ /O RAG/S AG/n>AL- /7 3/a C3 // w s /a -//m RAG/SAG/4ir _AL- 2 C4 ff'/S IS(3 '/J rag/sag/cwAL-C5 /5'//- 2 o ta jz3 5 H B-1 BLANK/O ^ B-2 BLANK22 3 53/9B-3 BLANK — oJoB-4 BLANK3S/) LD-1 CAN ID-LAB DUP-1 LD-2 CAN ID-LAB DUP-1 CAN ID-LD-3 LAB DUP-1 LD-4 CAN ID-LAB DUP-1 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 16 of 139 PACE ANALYTICAL 1673 Terra Avenue l Sheridan, WY 82801 l ph; (307) 672-8945 l fax:(307)672-6053 l^ace Analytical Radon Flux Canned Collection Media Average weight of cans:74.4 g Average weight of cans and Charcoai:255 g 1Athru35AList of cans shipped: Date shipped:12/19/2023 The canisters and activated charcoal are baked at 110 degrees Ceisius for at ieast 24 hours, aliowed to cooi, capped and seaied. A minimum of 10 percent are randomiy checked for radon before they are shipped. Detector: Nal Area Counts Count Time Date Date CPM CheckedCan #Seconds Propped<100 12/18/2023 12/14/202310A106001.0 12/18/2023 12/14/202322A196001.9 12/18/2023 12/14/20236001.423A14 12/18/2023 12/14/202335A76000.7 Signature: Inter-Mountain Laboratories, Inc.Page 1 of 1 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 17 of 139 Anfield Resources Holding Corp. Shootaring Canyon Mill UT Air Quality ID 14169 Tailings Cell Grid 2024 Radon Flux Results Data Set Summary pCi/m^-sec pCi/m^-sec Minimum Maximum pCi/m^-sec pCi/m^-sec Standard Deviation Average Grid Key Radon Flux result in pCi/m^-sec NORTH EAST NORTH WEST 3 2 110987654 4™ -24 4™ -23 4TH .22 4™ -21 4™-20 4™-18 4™-18 4TH-17 4TH-I64™-25 JJ 4™ -11 4TH-10 4™-8 4TH _8 4TH .7 4TH -64™-15 4™-14 4™-13 4™-12 II 4TH-4 4™-3 4™ -2 4TH-1 3«° - 25 3RD. 24 3RD. 23 3RD. 22 3RD. 214TH-5 HH 3RD_3P'°-18 3f^°-17 3«° -16 3f*°-14 3'^°-13 3RD -12 3RD -113RD _ 20 3«°-19 GG15 3RD-4 3RD-2 3RD-13RD-10 3^°-9 3RD-8 3RD-7 3R°-6 3^°-5 3«°-3 FF 2ND-23 2ND-22 2ND_2'j 2ND-20 2ND-19 2ND-18 2ND-17 2ND-162ND-25 2ND.24 EE 2ND-13 2ND.12 2ND-1 -I 2ND-10 2ND-9 2ND-8 2ND_7 2ND-62ND-15 2ND. 14 DD 2ND-3 2ND. I 1ST-25 1ST _ 24 1ST-23 IST-22 IST-212ND-5 2ND.4 2ND.2 Cc 1ST- 19 1ST- 18 IST-17 1ST- 16 1ST-15 1ST- 14 IST-13 IST-12 lST-111ST-20 BB lST-1 DUP-261ST- 10 1ST-9 IST-8 1ST-7 1ST-6 IST-5 1ST-4 1ST-3 1ST-2 AA SOUTH EAST SOUTH WEST 8 6 5 4 3 2 11097 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 18 of 139 DC#_Title: ENV-FRM-SHRT-0033 v02_Condition Upon Receipt Form Terra Lab Effective Date: 4/24/2023 Survey Meter # Model: 12SASN: 136491 pH strip lot # HC325179 Thermometer SN# 27130475 Condition Upon Receipt (Attach to COC) ROI?1 Number of ice chests/packages received: Note as “OTC" if samples are received over the counter, unpackaged Yes lo 2 Temperature of cooler/samples, (if more than a coolers, obtain an additional CUR form.) Temps Observed (°C): Temps Corrected (°C): Acceptable is: 0.1° to 10°C for Bacteria: and 0.1° to 6°C for most other water parameters. Samples may not have had adequate time to coot following collection. Indicate ROI (Received on Ice) for iced samples received on the same day as sampled, in addition to temperature at receipt. Client contact for temperatures outside method criteria must be documented below. 3 Emission rate of samples for radiochemical analyses < 0.5mR/hr? 4 COC Number (If applicable): 5 Do the number of bottles agree with the COC? 6 Were the samples received intact? (no broken bottles, leaks, etc.) 7 Were the sample custody seals intact? 8 Is the COC properly completed, legible, and signed? Sample Verification. Labeling & Distribution 1 Were all requested analyses understood and appropriate? 2 Did the bottle labels correspond with the COC information? 3 Samples collected in method-prescribed containers? 4 Sample Preservation: pH at Receipt: Total Metals Diss Metals Nutrient Cyanide Sulfide Phenol SDWA Rads 5 VOA vials have <6mm headspace? 6 Were all analyses within holding time at the time of receipt? 7 Have rush or project due dates been checked and accepted? 8 Do samples require subcontracted analyses? If "Yes", which type of subcontracting is required? Sample Receipt, Verification, Login, Labeling & Distribution completed by (initials): No N/A No N/A No N/A Yes No No No No No Final pH (if added in lab):Preservative/Lot# HNO3 Filtered and preserved in metals H2SO4 NaOH Date/Ti Total Metals Diss Metals Filtered a Nutrient Cyanide Sulfide ZnAcet H2SO4 _ HN03_ Phenol SDWA Rads Yes No No Yes Yes No (M2> General Customer-Specified DJ me Added: nd preserved in metals Certified Set ID: Discrepancy Documentation (use back of sheet for notes on discrepancies) Any items listed above with a response of "No" or do not meet specifications must be resolved. Phone: Email: Person Contacted:Method of Contact: Initiated Byj Date/Time:_ Problem: Resolution: Qualtrax ID: 70962 Pace® Analytical Services, LLC Page 1 of 1 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 19 of 139 1/15/2024Date: Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Samples A1, A10, A1-DUP, A2, A3, A4, A5, A6, A7, A8, A9, B1, B10, B2, B3, B4, B5, B6, B7, B8, B9, Blank B-1, BLANK B-2, BLANK B-3, BLANK B-4, C1, C2, C3, C4 and C5 were received on January 8, 2024. All samples were received and analyzed within recommended holding times, except those noted below in this case narrative. Samples were analyzed using methods outlined in the following references: Standard Methods for the Examination of Water and Wastewater, approved method versions EPA Test Methods for Evaluating Solid Waste, Physical/Chemical Methods, SW-846, online versions EPA methods 40 CFR Parts 136 and 141EPA 600/2-78-054 methods NDEP Mining Methods 40 CFR Part 50, Appendices B, J, L, O and FEM EQL-0310-189 IO Compendium Methods Clean Water Act Methods Update Rule for the Analysis of Effluent, current version. ASTM approved and recognized standards ISO approved and recognized standards USDA Handbook 60 Soil Survey Laboratory Manual Ver 4.0 ASA/SSSA 9 Methods of Analysis Part 2, 1982 ASA/SSSA Methods of Analysis Book 5 Part 3, 1996 Other industry approved methods All Quality Control parameters met the acceptance criteria defined by EPA and Pace Analytical except as indicated in this case narrative: Project:SHOOTARING CMP-UT AQ ID 14169 1ST QTR CLIENT:Anfield Resources Lab Order:S2401079 CASE NARRATIVE Report ID:S2401079001 Wade Nieuwsma, Laboratory Operations Manager Entire Report Reviewed by: Page 1 of 2 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来′〠潦‱㌹ 1/15/2024Date: Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Definitions RL Reporting Limit Qualifiers * Value exceeds Maximum Contaminant Level A Check MSA specifications B Analyte detected in the associated Method Blank C Calculated Value D Report limit raised due to dilution E Value above quantitation range G Analyzed at Pace Gillette, WY laboratory H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits L Analyzed by another laboratory M Value exceeds Monthly Ave or MCL or is less than LCL N Sample analyzed outside of compliance requirements ND Not Detected at the Reporting Limit O Outside the Range of Dilutions P Sample preserved in lab at time of receipt R RPD outside accepted recovery limits S Spike Recovery outside accepted recovery limits U Analyte below method detection limit X Matrix Effect Page 2 of 2 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来′ㄠ潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 1ST QTR Work Order:S2401079 Date Reported: Sample Analysis Report Report ID:S2401079001 Date Received:1/8/2024 COC:Sampler:RG/SG/LM 1/15/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:A1 Lab ID:S2401079-001 Collection Date:1/6/2024 11:59:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 08:470.5 pCi/m2-sec18.9 WN EPA 115Radon-222 Client Sample ID:A1-DUP Lab ID:S2401079-002 Collection Date:1/6/2024 11:59:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 09:130.5 pCi/m2-sec18.0 WN EPA 115Radon-222 Client Sample ID:A2 Lab ID:S2401079-003 Collection Date:1/6/2024 12:00:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 09:260.5 pCi/m2-sec16.9 WN EPA 115Radon-222 Client Sample ID:A3 Lab ID:S2401079-004 Collection Date:1/6/2024 12:00:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 09:380.5 pCi/m2-sec19.0 WN EPA 115Radon-222 Client Sample ID:A4 Lab ID:S2401079-005 Collection Date:1/6/2024 12:01:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 09:520.5 pCi/m2-sec30.5 WN EPA 115Radon-222 Client Sample ID:A5 Lab ID:S2401079-006 Collection Date:1/6/2024 12:01:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/13/2024 15:090.5 pCi/m2-sec17.3 WN EPA 115Radon-222 Page 1 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来′㈠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 1ST QTR Work Order:S2401079 Date Reported: Sample Analysis Report Report ID:S2401079001 Date Received:1/8/2024 COC:Sampler:RG/SG/LM 1/15/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:A6 Lab ID:S2401079-007 Collection Date:1/6/2024 12:02:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 10:170.5 pCi/m2-sec12.3 WN EPA 115Radon-222 Client Sample ID:A7 Lab ID:S2401079-008 Collection Date:1/6/2024 12:02:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 10:290.5 pCi/m2-sec12.6 WN EPA 115Radon-222 Client Sample ID:A8 Lab ID:S2401079-009 Collection Date:1/6/2024 12:03:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 10:410.5 pCi/m2-sec19.6 WN EPA 115Radon-222 Client Sample ID:A9 Lab ID:S2401079-010 Collection Date:1/6/2024 12:04:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 10:570.5 pCi/m2-sec22.2 WN EPA 115Radon-222 Client Sample ID:A10 Lab ID:S2401079-011 Collection Date:1/6/2024 12:04:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 11:210.5 pCi/m2-sec7.6 WN EPA 115Radon-222 Client Sample ID:B1 Lab ID:S2401079-012 Collection Date:1/6/2024 12:04:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 11:330.5 pCi/m2-sec22.3 WN EPA 115Radon-222 Page 2 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来′㌠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 1ST QTR Work Order:S2401079 Date Reported: Sample Analysis Report Report ID:S2401079001 Date Received:1/8/2024 COC:Sampler:RG/SG/LM 1/15/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:B2 Lab ID:S2401079-013 Collection Date:1/6/2024 12:05:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 11:450.5 pCi/m2-sec16.4 WN EPA 115Radon-222 Client Sample ID:B3 Lab ID:S2401079-014 Collection Date:1/6/2024 12:06:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 11:570.5 pCi/m2-sec16.7 WN EPA 115Radon-222 Client Sample ID:B4 Lab ID:S2401079-015 Collection Date:1/6/2024 12:06:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 12:100.5 pCi/m2-sec26.0 WN EPA 115Radon-222 Client Sample ID:B5 Lab ID:S2401079-016 Collection Date:1/6/2024 12:07:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 12:220.5 pCi/m2-sec17.8 WN EPA 115Radon-222 Client Sample ID:B6 Lab ID:S2401079-017 Collection Date:1/6/2024 12:07:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 12:340.5 pCi/m2-sec22.4 WN EPA 115Radon-222 Client Sample ID:B7 Lab ID:S2401079-018 Collection Date:1/6/2024 12:08:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 12:460.5 pCi/m2-sec26.9 WN EPA 115Radon-222 Page 3 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来′㐠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 1ST QTR Work Order:S2401079 Date Reported: Sample Analysis Report Report ID:S2401079001 Date Received:1/8/2024 COC:Sampler:RG/SG/LM 1/15/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:B8 Lab ID:S2401079-019 Collection Date:1/6/2024 12:08:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 12:580.5 pCi/m2-sec59.2 WN EPA 115Radon-222 Client Sample ID:B9 Lab ID:S2401079-020 Collection Date:1/6/2024 12:09:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 13:120.5 pCi/m2-sec21.7 WN EPA 115Radon-222 Client Sample ID:B10 Lab ID:S2401079-021 Collection Date:1/6/2024 12:09:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 13:390.5 pCi/m2-sec10.0 WN EPA 115Radon-222 Client Sample ID:C1 Lab ID:S2401079-022 Collection Date:1/6/2024 12:10:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 13:510.5 pCi/m2-sec14.8 WN EPA 115Radon-222 Client Sample ID:C2 Lab ID:S2401079-023 Collection Date:1/6/2024 12:10:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 14:040.5 pCi/m2-sec14.5 WN EPA 115Radon-222 Client Sample ID:C3 Lab ID:S2401079-024 Collection Date:1/6/2024 12:11:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 14:160.5 pCi/m2-sec15.5 WN EPA 115Radon-222 Page 4 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来′㔠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 1ST QTR Work Order:S2401079 Date Reported: Sample Analysis Report Report ID:S2401079001 Date Received:1/8/2024 COC:Sampler:RG/SG/LM 1/15/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:C4 Lab ID:S2401079-025 Collection Date:1/6/2024 12:11:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 14:290.5 pCi/m2-sec21.5 WN EPA 115Radon-222 Client Sample ID:C5 Lab ID:S2401079-026 Collection Date:1/6/2024 12:12:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 14:420.5 pCi/m2-sec16.5 WN EPA 115Radon-222 Client Sample ID:Blank B-1 Lab ID:S2401079-027 Collection Date: Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 14:560.5 pCi/m2-secND WN EPA 115Radon-222 Client Sample ID:BLANK B-2 Lab ID:S2401079-028 Collection Date: Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 15:090.5 pCi/m2-secND WN EPA 115Radon-222 Client Sample ID:BLANK B-3 Lab ID:S2401079-029 Collection Date: Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 15:220.5 pCi/m2-secND WN EPA 115Radon-222 Client Sample ID:BLANK B-4 Lab ID:S2401079-030 Collection Date: Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 01/09/2024 15:360.5 pCi/m2-secND WN EPA 115Radon-222 Page 5 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来′㘠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 1ST QTR CLIENT:Anfield Resources Work Order:S2401079 ANALYTICAL QC SUMMARY REPORT Report ID:S2401079001 1/15/2024Date: Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Radon Flux Sample Type MBLK Units:pCi/m2-sec Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:217602MB START (01/09/24 08:15) Radon-222 30ND Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:217602MB END (01/09/24 16:30) Radon-222 52ND Radon Flux Sample Type LCS1 Units:pCi/m2-sec Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo: 217602STD LOW START (01/09/24 06:56) 387 90 - 110Radon-222 98.30.5380 Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:217602STD LOW END (01/09/24 16:44) 387 90 - 110Radon-222 1030.5400 Radon Flux Sample Type LCS2 Units: pCi/m2-sec Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:217602STD HIGH START (01/09/24 08:28) 3870 90 - 110Radon-222 1010.53910 Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:217602STD HIGH END (01/09/24 16:15) 3870 90 - 110Radon-222 1000.53880 Radon Flux Sample Type DUP Units:pCi/m2-sec Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult RunNo:217602S2401079-001ADUP (01/09/24 08:58) 18.9 103.40Radon-222 0.519.5 Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult RunNo: 217602S2401079-010ADUP (01/09/24 11:09) 22.2 102.42Radon-222 0.522.8 Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult RunNo:217602S2401079-020ADUP (01/09/24 13:24) 21.7 104.98Radon-222 0.522.8 Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult RunNo: 217602S2401079-030ADUP (01/09/24 15:49) ND 10Radon-222 0.5ND Page 1 of 1䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来′㜠潦‱㌹ Inter-Mountain Labs Sheridan, WY and Gillette, WY - CHAIN OF CUSTODY RECORD -Page 1 of 1n ■YIL All shaded fields must be completed.#WEBINTER-MOUNTAIN LABS This is a iegai document; any misrepresentation may be construed as fraud. Client Name Project Identification Sampler (Signature/Attestation of Authenticity)Telephone # 307 277 3861ANFIELD RESOURCES HOLDING INC.SHOOTARING CMP-UT AQ ID 14169 2ND QTR ;RArq/SA<q R.Oc:ieR.g SH-eR-yt- qARLIN^ Report Address Contact Name ANALYSES / PARAMETERS ON FILE SHERYL GARLING SAGARLING@RDEINC.BIZEmail 307 277 3861 XInvoice Address Phone 3ON FILE Purchase Order#Quote#u.VERBAL REMARKSOSAMPLE IDENTIFICATION LAB ID (Lab Use Only) DATE TIME a#of <lU SAMPLED Matrix Containers a: 1 Deployed Date 4/6/2024 See field notes for Retrival Date 4/7/2024 date & time exposed, J'J70V/y4 ● <■=>/ -j 'o?o 26-LAACC Exposed Charcoal Cans SL 26 X LAACC location & Can ID 4-Blank Charcoal Cans SL 4 X See Wade for required -Unexposed cans/Do not Count,Method 115 REQUIRED return to inventrory QA Before&After STDs 7 Lab select 4 sample dups SL 4 X Blank, Low & High Std 4 Dups requested Count ASAP Utah AQ Site ID14169 SE StAflAJLl3I'7 SHIPPING INFO MATRIX CODES TURN AROUND TIMES COMPLIANCE INFORMATION ADDITIONAL REMARKS Check desired service Y* UPS □ FedEx □ USPS f Hand Carried Water WT Soil SL Solid SD Filter FT Other OT Compliance Monitoring ? Program (SDWA, NPDES,...) NESHAPPWSID/Permit# - CONFIRM THAT 4 BLANKS AND 4 DUPS ARE * Standard turnaround □ RUSH-5 Working Days □ URGENT-< 2 Working Days LOGGED IN AND REPORTED Chlorinated? Rush & Urgent Surcharges will be applied Sample Disposal'WWW. interni oantain laba. eenF *Lab X ClientibsJ Rev 4.0 Web Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 28 of 139 PAGE_^0F_9 RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE LOCATION/TAILS CELL ID: SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169CLIENT: ANFIELD RESOURCES HOLDING CORP : Ct.QOo'^f6e.e 2024-2'^° QUARTER SAMPLING EVENT WEATHER CONDITION MM/D PRECIP 24 HOUR Prior AND DAY OF: //aAt 6 MIN TEMP: D/YY 04/06/2024 MM/DD/YY 04/07/2024 MM/DD/YY Gamma HR/hr TAILS LOCATION ID/COORD COUNT MINUTES GROSS COUNTS LAACC UNIT# CHARCOAL CAN# SITE FIELD STAFF INITIALS LAB SAMPLE COMMENTS24 HR TIME DEPLOY/SET 24 HR TIME RETRIEVE 24 HR TIME START COUNTID# RAG/SAGC6AL- iif '● o S//- 40 is —2S ^C6 DUPAL-/2>IS//-● VO RAG/SAGAL- i./I 0 7C7 >7Jt ' HXA —o^V/2 - o 7 RAG/SAGC8AL-Xt A iC, I VRAG/SAGC9AL- tZ tX OL, —RAG/SAGCIOAL¬SO A /J ● V 7 iZ 5 Of-/9 ^4 RAG/SAGD1AL-n'r s i 11 RAG/SAG -oc>2’AL- 2^D2 /a-’/ST/>9 ' -S3 /VRAG/SAG!2'- a<hD3AL- 2Q /2 /2 f RAG/SAGAL- /5^D4 // — ^l\AL-3/?RAG/SAGD5/i : o3//; ^ ol%RAG/SAGAL- n D6 i 90 lX~ol RAG/SAGAL- 47 D7y 7'?/4 ' <JS /l\ a'i RAG/SAG35-/^D8 ^ -ATAL-/A A V O J 43^RAG/SAGAL- /3 D9 /!'. oC /V RAG/SAGDIOAL- /3 /2 ' OC11 , -^(■7AL- J RAG/SAGEl «<3-/s ; o o rx : // Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 29 of 139 PAGE ^ Of 2 RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE LOCATION/TAILS CELL ID: SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169CLIENT: ANFIELD RESOURCES HOLDING CORP WEATHER CONDITION: ifjj PRECIP 24 HOUR Prior AND DAY OF: /Wo MIN TEMP:Coo^U MM/DD/YY 04/06/2024 MM/DD/YY 04/07/2024 MM/DD/YY Gamma HR/hr2024-2'^° QUARTER SAMPLING EVENT TAILS LOCATION ID/COORD GROSS COUNTS LAACC UNIT# CHARCOAL CAN# SITE FIELD STAFF INITIALS LAB SAMPLE COUNT MINUTES24 HR TIME DEPLOY/SET 24 HR TIME RETRIEVE 24 HR TIME START COUNT COMMENTSID# — fRAG/SAGAL- 2 E2/o A / % : 16tt i SI - -2(9RAG/SAGE3ttAL- ^/2 A 22 > 12^/V X3 /H ft RAG/SAGAL-E4 / 2 * O 9 RAG/SAGl i E5 /a»AL-tt ●. 60 y<o // A -onRAG/SAGE6AL-CJ // ●/2 08 y^. A RAG/SAGE7AL-/3; 0711 HS RAG/SAGAL- /o E8/94 /y ■ ^3 /2 ● o 7 y<o RAG/SAGAL¬ES18 /a ' oc.n 5 ^a - o tRAG/SAGAL- /<^ElO JtL’OCft - VO B-1 BLANK -OJfB-2 BLANK/£●/} B-3 BLANK B-4 BLANKS0.A LD-1 CAN ID-LAB DUP-1 LD-2 CAN ID-LAB DUP-2 LD-3 CAN ID-LAB DU P-3 LD-4 CAN ID-LAB DU P-4 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 30 of 139 Anfield Resources Holding Corp. Shootaring Canyon Mill UT Air Quality ID 14169 Tailings Cell Grid 2024 Radon Flux Results Data Set Summary pCi/m^-sec pCi/m^-sec pCi/m^-sec pCi/m^-sec Minimum Maximum Standard Deviation Average Grid Key Radon Flux result in pCi/m^-sec NORTH WEST NORTH EAST 4™-25 4TH .24 4™ -23 4TH .22 4TH .21 4TH-I8 4™-17 4™-164™-20 4™-18 J 4™-15 4™ -14 4™-13 4™-12 4™-11 4™-10 4™-8 4™ -8 4TH.7 4TH .6 1 4TH-5 4TH .4 4™ -3 4TH.2 4TH-I 3RD - 25 3RD. 24 3RD - 23 3RD - 22 3RD - 21 H 3RD_3RD - 20 3RD . 19 3RD-18 3RD-17 3RD -16 3RD -14 3RD -13 3RD-12 3RD-11 G15 3RD-10 3RD-9 3RD-8 3RD-7 3RD-6 3RD-5 3RD-4 3RD-3 3RD-2 3RD-I F 2ND-25 2ND-24 2ND-23 2ND.22 2ND.21 2ND-20 2ND.19 2ND.18 2ND-17 2ND.16 e 2ND-15 2ND.14 2ND.13 2ND.12 2ND.11 2ND.10 2ND.g 2ND.8 2ND.7 2ND.g d 1ST-25 1ST _ 24 1ST _ 212ND.1 DUP26 1ST _ 23 1ST _ 222ND.5 2ND.4 2ND.3 2ND-2 c16.5 21.5 15.5 14.5 14.8 1®t_20 1ST_i9 1St_i8 IST-161St_i7 IST-15 1ST-14 IST-13 1ST-12 lST-11 B10.0 21.7 59.2 26.9 22.4 17.8 26.0 16.7 16.4 22.3 1ST-1 DUP26 18.9/18.0 1ST-10 1ST-9 1ST-8 1ST-7 1ST-6 1ST-5 1ST-4 1ST-3 1ST-2 A7.6 22.2 19.6 12.6 12.3 17.3 30.5 19.0 16.9 SOUTH WEST SOUTH EAST10987654321 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 31 of 139 PACE ANALYTICAL 1673 Terra Avenue l Sheridan, WY 82801 l ph; (307) 672-8945 l fax:(307) 672-6053 l’^ace Analytical Radon Flux Canned Collection Media Average weight of cans:74.4 g Average weight of cans and Charcoal:255 g ^ /vh 3^ A1A thru 35AList of cans shipped: 3/7/2024Date shipped: The canisters and activated charcoal are baked at 110 degrees Celsius for at least 24 hours, allowed to cool, capped and sealed. A minimum of 10 percent are randomly checked for radon before they are shipped. Detector: HPGe Count Time Date DateArea Counts CPM Checked PreppedSecondsCan#<100 3/5/20243/5/20246000.997a 3/5/2024 3/5/20241.21260015A 3/5/2024 3/5/20246001.124A11 3/5/2024 3/5/20246000.132A1 Signature: Inter-Mountain Laboratories, Inc.Page 1 of 1 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 32 of 139 DC#_Title: ENV-FRM-SHRT-0033 v02_Condition Upon Receipt Form Terra Lab Effective Date: 4/24/2023 Survey Meter # Model 2241-2; SN 182119 pH strip lot # HC333774 Thermometer SN# 27130475 Condition Upon Receipt (Attach to COO Sample Receipt 1 Number of ice chests/packages received: Note as "OTC" if samples are received over the counter, unpackaged 2 Temperature of cooler/samples, (if more than 8 coolers, obtain an additional CUR form.) Temps Observed (°C): Temps Corrected (°C): Acceptable is: 0.1° to 10°C for Bacteria: and 0.1° to 6°C for most other water parameters. Samples may not have had adequate time to cool following collection. Indicate ROI (Received on Ice) for iced samples received on the same day as sampled, in addition to temperature at receipt. 1 ROI? Yes I Client contact for temperatures outside method criteria must be documented below. 3 Emission rate of samples for radiochemical analyses < 0.5mR/hr? 4 COC Number (If applicable): 5 Do the number of bottles agree with the COC? 6 Were the samples received intact? (no broken bodies, leaks, etc.) 7 Were the sample custody seals intact? 8 Is the COC properly completed, legible, and signed? Sample Verification. Labeling & Distribution 1 Were all requested analyses understood and appropriate? 2 Did the bottle labels correspond with the COC information? 3 Samples collected in method-prescribed containers? 4 Sample Preservation: pH at Receipt: Total Metals Diss Metals Nutrient Cyanide Sulfide Phenol SDWA Rads 5 VOA vials have <6mm headspace? 6 Were all analyses within holding time at the time of receipt? 7 Have rush or project due dates been checked and accepted? 8 Do samples require subcontracted analyses? If "Yes", which type of subcontracting is required? Sample Receipt, Verification, Login, Labeling & Distribution completed by (initials): No N/Aes) &No N/A No N/A <fttfYesNo No No No No Final pH (if added in lab): Total Metals Preservative/Lot# HNO3 Filtered and preserved in metals H2SO4 NaOH Date/Ti Diss Metals Filtered a Nutrient Cyanide Sulfide Phenol ZnAcet H2SO4 HN03_SDWA Rads Yes No No Yes Yes No General Customer-Specified PJ t> me Added: nd preserved in metals Certified Set ID: Discrepancy Documentation (use back of sheet for notes on discrepancies) Any items listed above with a response of "No" or do not meet specifications must be resolved. Phone: Email: Person Contacted:Method of Contact: Date/Time:Initiated By_^ Problem: Resolution: Pace® Analytical Services, LLCQualtrax ID: 70962 Page 1 of 1 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 33 of 139 4/16/2024Date: Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Samples BLANK B-1, BLANK B-2, BLANK B-3, BLANK B-4, C10, C6, C6 DUP, C7, C8, C9, D1, D10, D2, D3, D4, D5, D6, D7, D8, D9, E1, E10, E2, E3, E4, E5, E6, E7, E8 and E9 were received on April 10, 2024. All samples were received and analyzed within recommended holding times, except those noted below in this case narrative. Samples were analyzed using methods outlined in the following references: Standard Methods for the Examination of Water and Wastewater, approved method versions EPA Test Methods for Evaluating Solid Waste, Physical/Chemical Methods, SW-846, online versions EPA methods 40 CFR Parts 136 and 141EPA 600/2-78-054 methods NDEP Mining Methods 40 CFR Part 50, Appendices B, J, L, O and FEM EQL-0310-189 IO Compendium Methods Clean Water Act Methods Update Rule for the Analysis of Effluent, current version. ASTM approved and recognized standards ISO approved and recognized standards USDA Handbook 60 Soil Survey Laboratory Manual Ver 4.0 ASA/SSSA 9 Methods of Analysis Part 2, 1982 ASA/SSSA Methods of Analysis Book 5 Part 3, 1996 Other industry approved methods All Quality Control parameters met the acceptance criteria defined by EPA and Pace Analytical except as indicated in this case narrative: Project:SHOOTARING CMP-UT AQ ID 14169 2ND QTR CLIENT:Anfield Resources Lab Order:S2404146 CASE NARRATIVE Report ID:S2404146001 Wade Nieuwsma, Laboratory Operations Manager Entire Report Reviewed by: Page 1 of 2 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来″㐠潦‱㌹ 4/16/2024Date: Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Definitions RL Reporting Limit Qualifiers * Value exceeds Maximum Contaminant Level A Check MSA specifications B Analyte detected in the associated Method Blank C Calculated Value D Report limit raised due to dilution E Value above quantitation range G Analyzed at Pace Gillette, WY laboratory H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits L Analyzed by another laboratory M Value exceeds Monthly Ave or MCL or is less than LCL N Sample analyzed outside of compliance requirements ND Not Detected at the Reporting Limit O Outside the Range of Dilutions P Sample preserved in lab at time of receipt R RPD outside accepted recovery limits S Spike Recovery outside accepted recovery limits U Analyte below method detection limit X Matrix Effect Page 2 of 2 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来″㔠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 2ND QTR Work Order:S2404146 Date Reported: Sample Analysis Report Report ID:S2404146001 Date Received:4/10/2024 COC:Sampler:RAG/SAG 4/16/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:C6 Lab ID:S2404146-001 Collection Date:4/7/2024 12:08:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/11/2024 09:330.5 pCi/m2-sec14.0 WN EPA 115Radon-222 Client Sample ID:C6 DUP Lab ID:S2404146-002 Collection Date:4/7/2024 12:08:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/11/2024 09:580.5 pCi/m2-sec14.7 WN EPA 115Radon-222 Client Sample ID:C7 Lab ID:S2404146-003 Collection Date:4/7/2024 12:07:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/11/2024 10:130.5 pCi/m2-sec18.3 WN EPA 115Radon-222 Client Sample ID:C8 Lab ID:S2404146-004 Collection Date:4/7/2024 12:07:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/11/2024 10:250.5 pCi/m2-sec21.2 WN EPA 115Radon-222 Client Sample ID:C9 Lab ID:S2404146-005 Collection Date:4/7/2024 12:06:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/11/2024 10:370.5 pCi/m2-sec4.3 WN EPA 115Radon-222 Client Sample ID:C10 Lab ID:S2404146-006 Collection Date:4/7/2024 12:06:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/11/2024 10:490.5 pCi/m2-sec2.9 WN EPA 115Radon-222 Page 1 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来″㘠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 2ND QTR Work Order:S2404146 Date Reported: Sample Analysis Report Report ID:S2404146001 Date Received:4/10/2024 COC:Sampler:RAG/SAG 4/16/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:D1 Lab ID:S2404146-007 Collection Date:4/7/2024 12:11:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/11/2024 11:290.5 pCi/m2-sec13.8 WN EPA 115Radon-222 Client Sample ID:D2 Lab ID:S2404146-008 Collection Date:4/7/2024 12:10:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/11/2024 11:450.5 pCi/m2-sec13.5 WN EPA 115Radon-222 Client Sample ID:D3 Lab ID:S2404146-009 Collection Date:4/7/2024 12:09:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/11/2024 13:210.5 pCi/m2-sec9.9 WN EPA 115Radon-222 Client Sample ID:D4 Lab ID:S2404146-010 Collection Date:4/7/2024 12:09:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/11/2024 13:330.5 pCi/m2-sec12.9 WN EPA 115Radon-222 Client Sample ID:D5 Lab ID:S2404146-011 Collection Date:4/7/2024 12:08:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/11/2024 13:570.5 pCi/m2-sec13.9 WN EPA 115Radon-222 Client Sample ID:D6 Lab ID:S2404146-012 Collection Date:4/7/2024 12:08:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/11/2024 14:080.5 pCi/m2-sec9.2 WN EPA 115Radon-222 Page 2 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来″㜠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 2ND QTR Work Order:S2404146 Date Reported: Sample Analysis Report Report ID:S2404146001 Date Received:4/10/2024 COC:Sampler:RAG/SAG 4/16/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:D7 Lab ID:S2404146-013 Collection Date:4/7/2024 12:07:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/11/2024 14:300.5 pCi/m2-sec12.0 WN EPA 115Radon-222 Client Sample ID:D8 Lab ID:S2404146-014 Collection Date:4/7/2024 12:07:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/11/2024 14:210.5 pCi/m2-sec14.9 WN EPA 115Radon-222 Client Sample ID:D9 Lab ID:S2404146-015 Collection Date:4/7/2024 12:06:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/11/2024 14:580.5 pCi/m2-sec1.0 WN EPA 115Radon-222 Client Sample ID:D10 Lab ID:S2404146-016 Collection Date:4/7/2024 12:06:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/11/2024 15:500.5 pCi/m2-sec5.7 WN EPA 115Radon-222 Client Sample ID:E1 Lab ID:S2404146-017 Collection Date:4/7/2024 12:11:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/12/2024 10:550.5 pCi/m2-sec6.9 WN EPA 115Radon-222 Client Sample ID:E2 Lab ID:S2404146-018 Collection Date:4/7/2024 12:10:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/12/2024 11:070.5 pCi/m2-sec5.4 WN EPA 115Radon-222 Page 3 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来″㠠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 2ND QTR Work Order:S2404146 Date Reported: Sample Analysis Report Report ID:S2404146001 Date Received:4/10/2024 COC:Sampler:RAG/SAG 4/16/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:E3 Lab ID:S2404146-019 Collection Date:4/7/2024 12:09:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/12/2024 11:180.5 pCi/m2-sec6.0 WN EPA 115Radon-222 Client Sample ID:E4 Lab ID:S2404146-020 Collection Date:4/7/2024 12:09:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/12/2024 11:300.5 pCi/m2-sec3.7 WN EPA 115Radon-222 Client Sample ID:E5 Lab ID:S2404146-021 Collection Date:4/7/2024 12:09:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/12/2024 11:570.5 pCi/m2-sec3.8 WN EPA 115Radon-222 Client Sample ID:E6 Lab ID:S2404146-022 Collection Date:4/7/2024 12:08:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/12/2024 12:540.5 pCi/m2-sec7.3 WN EPA 115Radon-222 Client Sample ID:E7 Lab ID:S2404146-023 Collection Date:4/7/2024 12:07:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/12/2024 13:060.5 pCi/m2-sec5.4 WN EPA 115Radon-222 Client Sample ID:E8 Lab ID:S2404146-024 Collection Date:4/7/2024 12:07:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/12/2024 13:180.5 pCi/m2-sec11.5 WN EPA 115Radon-222 Page 4 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来″㤠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 2ND QTR Work Order:S2404146 Date Reported: Sample Analysis Report Report ID:S2404146001 Date Received:4/10/2024 COC:Sampler:RAG/SAG 4/16/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:E9 Lab ID:S2404146-025 Collection Date:4/7/2024 12:06:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/12/2024 13:300.5 pCi/m2-sec0.7 WN EPA 115Radon-222 Client Sample ID:E10 Lab ID:S2404146-026 Collection Date:4/7/2024 12:06:00 PM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/12/2024 13:420.5 pCi/m2-sec3.3 WN EPA 115Radon-222 Client Sample ID:BLANK B-1 Lab ID:S2404146-027 Collection Date: Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/12/2024 13:560.5 pCi/m2-secND WN EPA 115Radon-222 Client Sample ID:BLANK B-2 Lab ID:S2404146-028 Collection Date: Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/12/2024 14:080.5 pCi/m2-secND WN EPA 115Radon-222 Client Sample ID:BLANK B-3 Lab ID:S2404146-029 Collection Date: Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/12/2024 14:230.5 pCi/m2-secND WN EPA 115Radon-222 Client Sample ID:BLANK B-4 Lab ID:S2404146-030 Collection Date: Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 04/12/2024 14:360.5 pCi/m2-secND WN EPA 115Radon-222 Page 5 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‴〠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 2ND QTR CLIENT:Anfield Resources Work Order:S2404146 ANALYTICAL QC SUMMARY REPORT Report ID:S2404146001 4/16/2024Date: Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Radon Flux Sample Type MBLK Units:pCi/m2-sec Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:220020MB START (04/11/24 09:21) Radon-222 95ND Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:220020MB END (04/11/24 16:50) Radon-222 15ND Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:220020MB START (04/12/24 10:23) Radon-222 30ND Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:220020MB END (04/12/24 15:15) Radon-222 0.57.3 Radon Flux Sample Type LCS1 Units:pCi/m2-sec Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo: 220020STD LOW START (04/11/24 08:01) 387 90 - 110Radon-222 1020.5396 Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:220020STD LOW END (04/11/24 17:03) 387 90 - 110Radon-222 1060.5409 Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:220020STD LOW START (04/12/24 08:10) 387 90 - 110Radon-222 1030.5398 Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:220020STD LOW END (04/12/24 15:37) 387 90 - 110Radon-222 1020.5393 Radon Flux Sample Type LCS2 Units:pCi/m2-sec Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:220020STD HIGH START (04/11/24 09:08) 3870 90 - 110Radon-222 90.60.53510 Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:220020STD HIGH END (04/11/24 16:34) 3870 90 - 110Radon-222 92.70.53590 Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:220020STD HIGH START (04/12/24 09:44) 3870 90 - 110Radon-222 90.80.53510 Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo: 220020STD HIGH END (04/12/24 15:02) 3870 90 - 110Radon-222 1050.54080 Page 1 of 2䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‴ㄠ潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 2ND QTR CLIENT:Anfield Resources Work Order:S2404146 ANALYTICAL QC SUMMARY REPORT Report ID:S2404146001 4/16/2024Date: Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Radon Flux Sample Type DUP Units:pCi/m2-sec Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult RunNo:220020S2404146-001ADUP (04/11/24 09:45) 14.0 100.949Radon-222 0.514.2 Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult RunNo:220020S2404146-010ADUP (04/11/24 13:45) 12.9 105.55Radon-222 0.513.6 Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult RunNo:220020S2404146-020ADUP (04/12/24 11:43) 3.7 104.40Radon-222 0.53.5 Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult RunNo:220020S2404146-030ADUP (04/12/24 14:49) ND 10Radon-222 0.5ND Page 2 of 2䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‴㈠潦‱㌹ Inter-Mountain Labs Sheridan, WY and Gillette. WY - CHAIN OF CUSTODY RECORD -Page 1 of 1■rriL All shaded fields must be completed.#WEBINTER-MOUNTAIN LABS This is a legal document: any misrepresentation may be construed as fraud. [Sampler (Signature/Attestation of Authenticity)Telephone# 307 277 3861 Client Name Project Identification [RAcrj/gAiq gHER-yL crjAT^LiNqANFIELD RESOURCES HOLDING INC.SHOOTARING CMP-UT AQ ID 14169 3RD QTR ANALYSES / PARAMETERSReport Address Contact Name SHERYL GARLINGON FILE SAGARLING@RDEINC.BIZEmail X307 277 3861Invoice Address Phone 3ON FILE Purchase Order#Quote # VERBAL REMARKSO DATE I TIMESAMPLED SAMPLE IDENTIFICATION LAB ID (Lab Use Only) Q#of <lU Matrix Containers a: 1 See field notes forDeployed Date 7/12/2024 date & time exposed,Retrival Date 7/13/2024 LAACC location & Can ID26-LAACC Exposed Charcoal Cans SL 26 X diA See Wade for required4-Blank Charcoal Cans SL X4 Method 115 REQUIRED-Unexposed cans/Do not Count, jot-. ^ 2.A QA Before&After STDsreturn to inventrory Ikt/7 Blank, Low & High StdSLXLab select 4 sample dups 4 8 4 Dups requested Count ASAP Utah AQ Site ID14169 BEBE ^/5>Q J- Sheryl <qctrLlru0 u 0(L Lo/’^A-Tldar\fjs ADDITIONAL REMARKSTURN AROUND TIMES COMPLIANCE INFORMATIONSHIPPING INFO MATRIX CODES Check desired service If Standard turnaround Compliance Monitoring ? Program (SDWA, NPDES,...) NESHAP PWSID/Permit# - Y CONFIRM THAT 4 BLANKS AND 4 DUPS ARE* UPS □ FedEx □ USPS * Hand Carried '^^^^i i ilu'Muui ilain Laha,* Water WT Soil SL Solid SD Filter FT Other OT LOGGED IN AND REPORTED □ RUSH - 5 Working Days □ URGENT - < 2 Working Days Chlorinated? Sample Disposal: Lab Xintermodntainlalaa.sBniRush Si Urgent Surcharges will be applied Client ■Re-OWeb■hw Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 43 of 139 PAGE / OF 2. RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE CLIENT; ANFIELD RESOURCES HOLDING CORP LOCATION/TAILS CELL ID: SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169 WEATHER CONDITION:PRECIP24HOURPriorANDDAYOF:MIN TEMP: MM/DD/YY 07/12/2024 MM/DD/YY 07/13/2024 MM/DD/YY Gamma HR/hr2024-3''° QUARTER SAMPLING EVENT TAILS LOCATION ID/COORD LAACC UNIT# CHARCOAL CAN# SITE FIELD STAFF INITIALS LAB SAMPLE COUNT MINUTES GROSS COUNTS24 HR TIME DEPLOY/SET 24 HR TIME RETRIEVE 24 HR TIME START COUNT COMMENTSID# RAG/SAGFI07;AL-o§:54 /»r/2 7/)RAG/SAGF2AL- Y oa*-s407--B7 RAG/SAGAL- ;?3 F3//?07: 3 9 /S RAG/SAGAL- 4.F40.9A 07 -● 9Z /C RAG/SAGF5AL- /7 /5 A oa-S'co7‘ AS AL- //F6 RAG/SAGn A as: St-07'. 48 /3 7RAG/SAGAL-F7 o a;o 7; 3 2‘2C, A RAG/SAGAL-F82/— ^4'/Y0 7-57/S » ^<7373/^F9 RAG/SAGAL- 24 o & S'S /507'57 — <7f DAL- 3 FIO RAG/SAG08Oft-S'*3 /Y AL- /5T RAG/SAGG12o /?o o o(57; —/3 RAG/SAGAL-G2/a/F 07; 4 2 /4-o <!»: oc) _P)7AL- 5 RAG/SAGG3/S’/?07 :/Yo s - Q I »/‘1RAG/SAGAL- 21 G4/■? A 04 i o I /Yd7 ' Y4 AL- 7 RAG/SAGG5ap /601 .-AS ->7/4AL- /RAG/SAGG6o ; o 2/ 4/>/407-52 ~^/7AL- /Y G7 RAG/SAGas A (3 9:o 7 ●- S «/4 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 44 of 139 PAGE^2 OF^ RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE LOCATION/TAILS CELL ID: SHOOTARIIMG CANYON MILL PROJECT UT Air Quality ID 14169CLIENT: ANFIELD RESOURCES HOLDING CORP WEATHER CONDITION:PRECIP 24 HOUR Prior AND DAY OF:MIN TEMP: MM/DD/YY 07/12/2024 MM/DD/YY 07/13/2024 MM/DD/YY Gamma HR/hr2024-3'^° QUARTER SAMPLING EVENT TAILS LOCATION ID/COORD LAACC UNIT# CHARCOAL CAN# SITE FIELD STAFF INITIALS LAB SAMPLE COUNT MINUTES GROSS COUNTS24 HR TIME DEPLOY/SET 24 HR TIME RETRIEVE 24 HR TIME START COUNT COMMENTSID# RAG/SAGAL- IL G824 oe; Q2 '5 -‘’/fRAG/SAGG9AL- 2.cf)OS ' o GIO RAG/SAGAL- /O 09 'o§c OE /<* n _ t?iiAL- 20 RAG/SAGGIO DUP o <3':32 4 OS :o8 /(● oe ? ooAL- ;a ^4 RAG/SAGHIog 15*4 Z4' RAG/SAGAL- a H2 -ag - od /S2VA - -XMAL- IH RAG/SAGH3 /S274 RAG/SAGAL- Cf H4 O OG -- nr ^6(7 8 '.07 AL- aS"RAG/SAGH5 .—2 8 4 /<.OS-OS’OS ; /o B-1 BLANK9/9 B-2 BLANK✓4 4 B-3 BLANK/7/f — 7j0B-4 BLANK LD-1 CAN ID-LAB DU P-1 LD-2 CAN ID-LAB DU P-2 LD-3 CAN ID-LAB DU P-3 LD-4 CAN ID-LAB DU P-4 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 45 of 139 DC#_Title: ENV-FRM-SHRT-0033 v02_Condition Upon Receipt Form Terra Lab Effective Date: 4/24/2023 Survey Meter # Model 2241-2; SN 182119 pH strip lot # HC446507 Thermometer SN# 220622431 Condition Upon Receipt (Attach to COO Sample Receipt 1 Number of ice chests/packages received: Noteas "OTC" if samples are received overthe counter, unpackaged 2 Temperature of cooler/samples, (if more than 8 coolers, obtain an additional CUR form.) Temps Observed (°C): | ~ Temps Corrected (°C): | Acceptable is: 0.1° to 10°C for Bacteria; and 0.1° to 6°C for most other water parameters. Samples may not have had adequate time to cool following collection. Indicate ROI (Received on Ice) for iced samples received on the same day as sampled, in addition to temperature at receipt. s ROI? Yes Client contact for temperatures outside method criteria must be documented below. 3 Emission rate of samples for radiochemical analyses < 0.5mR/hr? 4 COC Number (If applicable): 5 Do the number of bottles agree with the COC? 6 Were the samples received intact? (no broken bottles, leaks, etc.) 1 Were the sample custody seals intact? 8 Is the COC properly completed, legible, and signed? Sample Verification. Labeling & Distribution 1 Were all requested analyses understood and appropriate? 2 Did the bottle labels correspond with the COC information? 3 Samples collected in method-prescribed containers? 4 Sample Preservation: pH at Receipt; Total Metals Final pH (if added in lab): Total Metals Preserva HNO3 No N/A No N/A No N/A Yes No No No No No DIss Metals Nutrient tive/Lot#Date/Time Added; Diss Metals Nutrient Cyanide Sulfide Phenol SDWA Rads 5 VOA vials have <6mm headspace? 6 Were all analyses within holding time at the time of receipt? 7 Have rush or project due dates been checked and accepted? 8 Do samples require subcontracted analyses? /f 'Yes" which type of subcontracting is required? Sample Receipt, Verification, Login, Labeling & Distribution completed by (initials): Filtered and preserved in H2SO4 NaOHCyanide Sulfide ZnAcet Phenol H2SO4 HNO3.SDWA Rads Yes Yes Yes General Custo metals Filtered and preserved In metals No No No mer-Specified Certified 7Set ID; Discrepancy Documentation (use back of sheet for notes on discrepancies) Any items listed above with a response of "No" or do not meet specifications must be resolved. Phone: Email: Method of Contact:Person Contacted: Initiated By Date/Time:_; Problem: Resolution: Qualtrax ID: 70962 Pace® Analytical Services, LLC Page 1 of 1Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 46 of 139 PACE ANALYTICAL 1673 Terra Avenue l Sheridan, WY 82801 l ph: (307) 672-8945 n fax:(307) 672-6053 l%ceAnalytical Radon Flux Canned Collection Media Average weight of cans:74.4 g Average weight of cans and Charcoal: List of cans shipped:1A thru 35A 6/14/2024Date shipped: The canisters and activated charcoal are baked at 110 degrees Celsius for at least 24 hours, allowed to cool, capped and sealed. A minimum of 10 percent are randomly checked for radon before they are shipped. Detector: HPGe Count Time Date DateArea Counts Seconds CPM Checked PreppedCan #<100 06.13/24 06.13/241.0106009a 06.13/24 06.13/246000.9916A 06.13/24 06.13/246000.417A4 06.13/24 06.13/246000.431A4 V Signature: Inter-Mountain Laboratories, Inc.Page 1 of 1 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 47 of 139 Anfield Resources Holding Corp. Shootaring Canyon Mill UT Air Quality ID 14169 Tailings Cell Grid 2024 Radon Flux Results Data Set Summary pCi/m^-secMinimum pCi/m^-secMaximum pCi/m^-secStandard Deviation pCi/m^-secAverage Grid Key Radon Flux result in pCi/m^-sec NORTH EAST NORTH WEST 2 1438765109 4™-17 4™-164™ -21 4™-20 4™-18 4™-18 J4™ -23 4™ -224™-25 4™ -24J 4TH ,7 4™-64™-11 4™-10 4TH-8 4TH _8 14™-13 4TH.124TH-I5 4TH .-14I - 213^*° - 24 3’^° - 23 3RD . 22 H4™-3 4™ -2 4TH-1 3^° - 254TH-5 4™ -4H 3'^° - 20 DUP 26 3RD. 12 3RD. 113RD . 14 3'^° -13 G3R°-18 3'"°-17 3R°-163^° -19 15G 3RD .2 3RD.13«°-5 3RD .4 3^°-3 F3’’° -8 3'^°-7 3'^° -63'^°-10 3R°-9F 2ND. 17 2ND-I62ND_2i 2ND-20 2ND. 19 2ND-182ND-24 2ND.23 2ND_222ND-25 EE6.93.8 3,7 6.0 5.411,5 5.4 7.33.3 0.7 2ND-9 2ND-8 2Nd_7 2ND-62ND. 12 2ND.11 2ND-102ND.15 2ND-14 2ND. 13 DD9.9 13.5 13.812.0 9.2 13,9 12.91.0 14.95,7 2ND.1 DUP 26 14.0/14.7 1ST _ 22 1ST-21IST-25 1ST _ 24 IST-232ND-3 2Nd_22ND-5 2Nd_4 CC14.5 14.816.5 21.5 15.52.9 4.3 21.2 18.3 IST-14 1ST-13 1St_i2 lST_iiIST-18 IST-17 1ST-16 IST-15IST-20 IST-19 BB17.8 26.0 16.7 16.4 22.321.7 59.2 26.9 22.410.0 lST-1 DUP 26 18.9/18.0 1ST-21ST-6 1ST-5 1ST-4 IST-3lST-10 1ST-9 1ST-8 1ST-7 AA12.3 17.3 30.5 19.0 16.97.6 22.2 19.6 12.6 SOUTH EAST SOUTH WEST 3 2 187654109 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 48 of 139 7/17/2024Date: Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Samples BLANK B-1, BLANK B-2, BLANK B-3, BLANK B-4, F1, F10, F2, F3, F4, F5, F6, F7, F8, F9, G1, G10, G10 DUP, G2, G3, G4, G5, G6, G7, G8, G9, H1, H2, H3, H4 and H5 were received on July 15, 2024. All samples were received and analyzed within recommended holding times, except those noted below in this case narrative. Samples were analyzed using methods outlined in the following references: Standard Methods for the Examination of Water and Wastewater, approved method versions EPA Test Methods for Evaluating Solid Waste, Physical/Chemical Methods, SW-846, online versions EPA methods 40 CFR Parts 136 and 141EPA 600/2-78-054 methods NDEP Mining Methods 40 CFR Part 50, Appendices B, J, L, O and FEM EQL-0310-189 IO Compendium Methods Clean Water Act Methods Update Rule for the Analysis of Effluent, current version. ASTM approved and recognized standards ISO approved and recognized standards USDA Handbook 60 Soil Survey Laboratory Manual Ver 4.0 ASA/SSSA 9 Methods of Analysis Part 2, 1982 ASA/SSSA Methods of Analysis Book 5 Part 3, 1996 Other industry approved methods All Quality Control parameters met the acceptance criteria defined by EPA and Pace Analytical except as indicated in this case narrative: Project:SHOOTARING CMP-UT AQ ID 14169 3RD QTR CLIENT:Anfield Resources Lab Order:S2407248 CASE NARRATIVE Report ID:S2407248001 Wade Nieuwsma, Laboratory Operations Manager Entire Report Reviewed by: Page 1 of 2 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‴㤠潦‱㌹ 7/17/2024Date: Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Definitions RL Reporting Limit Qualifiers * Value exceeds Maximum Contaminant Level A Check MSA specifications B Analyte detected in the associated Method Blank C Calculated Value D Report limit raised due to dilution E Value above quantitation range G Analyzed at Pace Gillette, WY laboratory H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits L Analyzed by another laboratory M Value exceeds Monthly Ave or MCL or is less than LCL N Sample analyzed outside of compliance requirements ND Not Detected at the Reporting Limit O Outside the Range of Dilutions P Sample preserved in lab at time of receipt R RPD outside accepted recovery limits S Spike Recovery outside accepted recovery limits U Analyte below method detection limit X Matrix Effect Page 2 of 2 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‵〠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 3RD QTR Work Order:S2407248 Date Reported: Sample Analysis Report Report ID:S2407248001 Date Received:7/15/2024 COC:Sampler:RAG/SAG 7/17/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:F1 Lab ID:S2407248-001 Collection Date:7/13/2024 8:54:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 09:320.5 pCi/m2-sec10.1 WN EPA 115Radon-222 Client Sample ID:F2 Lab ID:S2407248-002 Collection Date:7/13/2024 8:54:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 09:560.5 pCi/m2-sec9.4 WN EPA 115Radon-222 Client Sample ID:F3 Lab ID:S2407248-003 Collection Date:7/13/2024 8:55:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 10:160.5 pCi/m2-sec17.0 WN EPA 115Radon-222 Client Sample ID:F4 Lab ID:S2407248-004 Collection Date:7/13/2024 8:55:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 10:280.5 pCi/m2-sec14.8 WN EPA 115Radon-222 Client Sample ID:F5 Lab ID:S2407248-005 Collection Date:7/13/2024 8:56:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 10:420.5 pCi/m2-sec21.3 WN EPA 115Radon-222 Client Sample ID:F6 Lab ID:S2407248-006 Collection Date:7/13/2024 8:56:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 10:540.5 pCi/m2-sec7.3 WN EPA 115Radon-222 Page 1 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‵ㄠ潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 3RD QTR Work Order:S2407248 Date Reported: Sample Analysis Report Report ID:S2407248001 Date Received:7/15/2024 COC:Sampler:RAG/SAG 7/17/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:F7 Lab ID:S2407248-007 Collection Date:7/13/2024 8:57:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 11:060.5 pCi/m2-sec15.6 WN EPA 115Radon-222 Client Sample ID:F8 Lab ID:S2407248-008 Collection Date:7/13/2024 8:57:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 11:190.5 pCi/m2-sec5.0 WN EPA 115Radon-222 Client Sample ID:F9 Lab ID:S2407248-009 Collection Date:7/13/2024 8:58:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 11:310.5 pCi/m2-sec3.7 WN EPA 115Radon-222 Client Sample ID:F10 Lab ID:S2407248-010 Collection Date:7/13/2024 8:59:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 11:430.5 pCi/m2-sec8.4 WN EPA 115Radon-222 Client Sample ID:G1 Lab ID:S2407248-011 Collection Date:7/13/2024 9:00:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 12:060.5 pCi/m2-sec18.0 WN EPA 115Radon-222 Client Sample ID:G2 Lab ID:S2407248-012 Collection Date:7/13/2024 9:00:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 12:170.5 pCi/m2-sec20.0 WN EPA 115Radon-222 Page 2 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‵㈠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 3RD QTR Work Order:S2407248 Date Reported: Sample Analysis Report Report ID:S2407248001 Date Received:7/15/2024 COC:Sampler:RAG/SAG 7/17/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:G3 Lab ID:S2407248-013 Collection Date:7/13/2024 9:01:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 12:290.5 pCi/m2-sec39.9 WN EPA 115Radon-222 Client Sample ID:G4 Lab ID:S2407248-014 Collection Date:7/13/2024 9:01:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 12:410.5 pCi/m2-sec15.6 WN EPA 115Radon-222 Client Sample ID:G5 Lab ID:S2407248-015 Collection Date:7/13/2024 9:02:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 12:530.5 pCi/m2-sec16.9 WN EPA 115Radon-222 Client Sample ID:G6 Lab ID:S2407248-016 Collection Date:7/13/2024 9:02:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 13:040.5 pCi/m2-sec14.2 WN EPA 115Radon-222 Client Sample ID:G7 Lab ID:S2407248-017 Collection Date:7/13/2024 9:02:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 13:160.5 pCi/m2-sec7.4 WN EPA 115Radon-222 Client Sample ID:G8 Lab ID:S2407248-018 Collection Date:7/13/2024 9:03:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 13:290.5 pCi/m2-sec5.0 WN EPA 115Radon-222 Page 3 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‵㌠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 3RD QTR Work Order:S2407248 Date Reported: Sample Analysis Report Report ID:S2407248001 Date Received:7/15/2024 COC:Sampler:RAG/SAG 7/17/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:G9 Lab ID:S2407248-019 Collection Date:7/13/2024 9:03:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 13:400.5 pCi/m2-sec3.4 WN EPA 115Radon-222 Client Sample ID:G10 Lab ID:S2407248-020 Collection Date:7/13/2024 9:03:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 13:520.5 pCi/m2-sec11.6 WN EPA 115Radon-222 Client Sample ID:G10 DUP Lab ID:S2407248-021 Collection Date:7/13/2024 9:03:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 14:160.5 pCi/m2-sec9.3 WN EPA 115Radon-222 Client Sample ID:H1 Lab ID:S2407248-022 Collection Date:7/13/2024 8:56:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 14:280.5 pCi/m2-sec16.3 WN EPA 115Radon-222 Client Sample ID:H2 Lab ID:S2407248-023 Collection Date:7/13/2024 8:57:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 14:410.5 pCi/m2-sec17.1 WN EPA 115Radon-222 Client Sample ID:H3 Lab ID:S2407248-024 Collection Date:7/13/2024 8:05:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 14:520.5 pCi/m2-sec16.4 WN EPA 115Radon-222 Page 4 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‵㐠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 3RD QTR Work Order:S2407248 Date Reported: Sample Analysis Report Report ID:S2407248001 Date Received:7/15/2024 COC:Sampler:RAG/SAG 7/17/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:H4 Lab ID:S2407248-025 Collection Date:7/13/2024 9:00:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 15:050.5 pCi/m2-sec12.7 WN EPA 115Radon-222 Client Sample ID:H5 Lab ID:S2407248-026 Collection Date:7/13/2024 8:10:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 15:170.5 pCi/m2-sec13.9 WN EPA 115Radon-222 Client Sample ID:BLANK B-1 Lab ID:S2407248-027 Collection Date: Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 15:290.5 pCi/m2-secND WN EPA 115Radon-222 Client Sample ID:BLANK B-2 Lab ID:S2407248-028 Collection Date: Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 15:430.5 pCi/m2-secND WN EPA 115Radon-222 Client Sample ID:BLANK B-3 Lab ID:S2407248-029 Collection Date: Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 15:540.5 pCi/m2-secND WN EPA 115Radon-222 Client Sample ID:BLANK B-4 Lab ID:S2407248-030 Collection Date: Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 07/16/2024 16:060.5 pCi/m2-secND WN EPA 115Radon-222 Page 5 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‵㔠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 3RD QTR CLIENT:Anfield Resources Work Order:S2407248 ANALYTICAL QC SUMMARY REPORT Report ID:S2407248001 7/17/2024Date: Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Radon Flux Sample Type MBLK Units:pCi/m2-sec Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:222502MB START (07/16/24 09:20) Radon-222 30ND Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:222502MB END (07/16/24 16:41) Radon-222 30ND Radon Flux Sample Type LCS1 Units:pCi/m2-sec Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo: 222502RADSTD-16-1 START (07/16/24 07:58) 387 90 - 110Radon-222 98.90.5383 Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:222502RADSTD-16-1 END (07/16/24 16:54) 387 90 - 110Radon-222 1010.5390 Radon Flux Sample Type LCS2 Units: pCi/m2-sec Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:222502RADSTD-16-2 START (07/16/24 09:03) 3870 90 - 110Radon-222 1010.53910 Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:222502RADSTD-16-2 END (07/16/24 16:29) 3870 90 - 110Radon-222 92.50.53580 Radon Flux Sample Type DUP Units:pCi/m2-sec Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult RunNo:222502S2407248-001ADUP (07/16/24 09:44) 10.1 101.87Radon-222 0.59.9 Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult RunNo: 222502S2407248-010ADUP (07/16/24 11:54) 8.4 106.01Radon-222 0.57.9 Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult RunNo:222502S2407248-020ADUP (07/16/24 14:04) 11.6 103.03Radon-222 0.511.2 Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult RunNo: 222502S2407248-030ADUP (07/16/24 16:17) ND 10Radon-222 0.5ND Page 1 of 1䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‵㘠潦‱㌹ - CHAIN OF CUSTODY RECORD -Inter-Mountain Labs Sheridan, WY and Gillette, WY 1 of 1PageIIYILAll shaded fields must be completed.#WEB INTER-MOUNTAIN LABS This is a legal document; any misrepresentation may be construed as fraud. Telephone # 307 277 3861 ISampler (Signature/Attestation of Authenticity)Project Identification SHOOTARING CMP-UT AQ ID 14169 4TH QTR Client Name RA<q/SAq SH-ER-YL cqAR.LIN<qANFIELD RESOURCES HOLDING INC. ANALYSES / PARAMETERSContact NameReport Address SHERYL GARLINGON FILE SAGARLING@RDEINC.BIZEmail X307 277 3861Invoice Address Phone 3 Quote #Purchase Order#ON FILE REMARKSVERBALO SAMPLE IDENTIFICATION #of QDATETIMELAB ID (Lab Use Only) <lU Matrix ContainersSAMPLED a: See field notes for10/1/2024Deployed Date date & time exposed,10/2/2024Retrival Date LAACC location & Can IDSL26X26-LAACC Exposed Charcoal Cans See Wade for requiredXSL44-Blank Charcoal Cans t Method 115 REQUIREDH -Unexposed cans/Do not Count,Z QA Before&After STDsreturn to inventrory Blank, Low & High StdXSL4Lab select 4 sample dups 4 Pups requested Count ASAP Utah AQSitelD14169 SE[IE <iX Sheryl i:jnrLliA-0 if-i ir7 ADDITIONAL REMARKSCOMPLIANCE INFORMATIONTURN AROUND TIMESMATRIX CODESSHIPPING INFO Check desired service * Standard turnaround □ RUSH - 5 Working Days □ URGENT-< 2 Working Days Rush & Urgent Surcharges will be appliedd Compliance Monitoring ' Program (SDWA, NPDES,...) NESHAPPWSID/Permit# - Chlorinated? S^ai^Pjle Disposal: Y Lab X Client CONFIRM THAT 4 BLANKS AND 4 UUI-'b AKhUPS □ FedEx □ USPS * Hand Carried liluuiituiii Lubj* Water WT LOGGED IN AND REPORTEDSoilSL Solid SD Filter FT other OT Ra'u'4.0 Webemiedii■hw: Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 57 of 139 PAGE / Of 1 RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE LOCATION/TAILS CELL ID: SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169CLIENT: ANFIELD RESOURCES HOLDING CORP ^ 6 S PRECIP 24 HOUR Prior AND DAY OF:MIN TEMP:WEATHER CONDITION:ci.e-RK MM/DD/YY Gamma ^R/hr MM/DD/YY 10/01/2024 MM/DD/YY 10/02/20242024-4™ QUARTER SAMPLING EVENT TAILS LOCATION ID/COORD GROSS COUNTS COUNT MINUTES LAB SAMPLESITE FIELD STAFF INITIALS CHARCOAL CAN# LAACC UNIT# COMMENTS24 HR TIME START COUNT 24 HR TIME RETRIEVE 24 HR TIME DEPLOY/SET ID# RAG/SAGH6AL-<27 4 /Iza.o7- 4 a oT. H9 RAG/SAGH7d'7'^CAL- RAG/SAGH807 'HL 1HAL-o7 l/ — tij ^RAG/SAG2/ /?H9AL- a q7 : hH 0 7 l Vd. —oirRAG/SAGHIOAL- Jt 0*7 - -c^C tsrRAG/SAGor://*?22 4 IIAL- 7 Q 7 - S S' —0/7RAG/SAG3 >7 oy: VF12 IS'AL-20 0 7 07-4^RAG/SAG13AL-/a (2j 7 l RAG/SAG14 IL01-4 2,AL-o 7 ll 3 72&4 ^oi<oRAG/SAGISor-4TAL-//4 ff 7 5 S RAG/SAGI6AL- 2,OT ' .39/o 4 -fr/>RAG/SAGI7AL-O 7: V7/O -ot-lRAG/SAGI8AL- IS 07-'VC./S’4 /5-RAG/SAG33/?I9 o7:0 7AL- ^ -‘'/rRAG/SAG ATnoC,4 07=^6AL- 3 07 = H 1 -^L ATRAG/SAG07: SOJ1AL- /7 C7 l 3<- '^(7o 7:M RAG/SAGJ207 * SQAL-2C4 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 58 of 139 PAGE 2 OF 2 RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE LOCATION/TAILS CELL ID: SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169CLIENT: ANFIELD RESOURCES HOLDING CORP WEATHER CONDITION: Q U R JL/G«7 PRECIP 24 HOUR Prior AND DAY OF:MIN TEMP: MM/DD/YY Gamma nR/hr MM/DD/YY 10/01/2024 MM/DD/YY 10/02/20242024-4™ QUARTER SAMPLING EVENT TAILS LOCATION ID/COORD COUNT MINUTES GROSS COUNTS LAB SAMPLESITE FIELD STAFF INITIALS LAACC UNIT# CHARCOAL CAN # COMMENTS24 HR TIME START COUNT 24 HR TIME DEPLOY/SET 24 HR TIME RETRIEVE ID# RAG/SAGJ3AL- IS oy-^3or: SI — biCfRAG/SAGJ4AL-o Heas ^O 7 -● 3 T RAG/SAGAL-J5 QT’HI3/»o7: « 7 I jH-RAG/SAGAL- a/J5 DUP 07;V707:3d /fRAG/SAGJ6AL- ZC 07'H'I540 7-* 3 & RAG/SAG5 5 rH17OT-'HIAL- 2-V o7; —I?-5*1RAG/SAG fSJ8AL- (H or -^4.0» 7 1 if O ^oHT fS^ 7 : y<i RAG/SAG19AL- JC,o 7 : H I — 0p"i-4>/’HRAG/SAGor -AL- 23 JIO-Tf^o 7 4 a -i^;7BLANKB-1 B-2 BLANK BLANKB-3 B-4 BLANK LAB DUP-1LD-1 CAN ID- CAN ID-LAB DUP-2LD-2 LAB DUP-3LD-3 CAN ID- LD-4 CAN ID-LAB DUP-4 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 59 of 139 PACE ANALYTICAL 1673 Terra Avenue l Sheridan, WY 82801 l ph: (307) 672-8945 l fax:(307) 672-6053 l’^ace Analytical Radon Flux Canned Collection Media Average weight of cans:74.4 g Average weight of cans and Charcoal: List of cans shipped: 9/11/2024Date shipped: The canisters and activated charcoai are baked at 110 degrees Ceisius for at ieast 24 hours, allowed to cool, capped and sealed. A minimum of 10 percent are randomly checked for radon before they are shipped. Detector: HPGe Area Counts Count Time Date Date Can#Seconds CPM Checked<100 Prepped 9/4/20249/6/202426000.29a 9/6/2024 9/4/202446000.416A 9/6/2024 9/4/202406000.020A 9/6/2024 9/4/2024116001.134A Signature: Inter-Mountain Laboratories, Inc.Page 1 of 1 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 60 of 139 Anfield Resources Holding Corp. Shootaring Canyon Mill LIT Air Quality ID 14169 Tailings Cell Grid 2024 Radon Flux Results Data Set Summary pCi/m^-secMinimum pCi/m^-secMaximum pCi/m^-secStandard Deviation pCi/m^-secAverage Grid Key Radon Flux result in pCi/m^-sec north EAST NORTH WEST 2 1365410987 4™-20 DUP26 4™ -164™ -18 4™-174™ -21 4™-18 J4™ -24 4™ -23 4™ -224™-25J 4™ -64TH-8 4™ -8 4™ -7 I4™ -11 4™-104™-14 4™-13 4™ -124™-15I 3RD _ 213RD _ 24 3RD _ 23 3RD _ 223™ - 25 H4™ -2 4TH-14TH.5 4TH .4 4™ -3H 17.1 16.313.9 12.7 16.4 3RD _ 20 DUP2 11.6/9.3 3RD _3Rd_i2 20.0 3"°-14 3’’°-133""-16 3”“-153’’“-19 3”°-18 3'^°-17 gg15.6 39.9 18.014.2 16.93.4 5.0 7.4 3Rd_i3«°-3 3Rd_23R'5-6 3R°-5 3RD .431^°-10 3R°-9 3RD-8 3f'°-7 FF9.4 10.121.3 14.8 17.03.7 5.0 15.6 7.38.4 2ND-I62ND-18 2ND-172ND-21 2ND-20 2ND-192ND-25 2ND.24 2ND-23 2Nd_22 EE5.4 6.93.8 3.7 6,00.7 11.5 5.4 7.33.3 2ND_62ND-10 2ND-9 2ND-8 2ND-72ND-14 2ND-13 2Nd_-|2 2ND-112ND-15 DD12.9 9.9 13.5 13.812.0 9.2 13.95.7 1.0 14.9 2ND-1 DUP26 14.0/14.7 1ST-22 1ST-211ST-25 1ST-24 1ST-232ND.4 2ND-3 2ND_22ND-5 CC15.5 14.5 14,821.2 18.3 16.5 21.52.9 4,3 IST-12 lST-11IST-16 IST-15 1ST- 14 1ST-131ST-20 1ST- 19 IST-18 IST-17 BB26.0 16.7 16.4 22.359.2 26.9 22.4 17,810.0 21.7 lST-1 DUP26 18.9/18.0 1ST-5 1ST-4 1ST-3 1ST-21ST-9 1ST-8 1ST-7 1ST-61ST- 10 AA19.6 12.3 17.3 30.5 19.0 16.97.6 22.2 12.6 SOUTH EAST SOUTH WEST 3 2 198765410 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 61 of 139 DC#_Title; ENV-FRM-SHRT-0033 v02_Condition Upon Receipt Form Terra Lab Effective Date: 4/24/2023 Survey Meter # Model 2241-2; SN 182119 pH strip lot # HC446507 Thermometer SN# 220622431 Condition Upon Receipt (Attach to COC) Sample Receipt 1 Number of ice chests/packages received: Note as " OTC" if samples are received over the counter, unpackaged 2 Temperature of cooler/samples, (if more than 8 coolers, obtain an additional CUR form.) Temps Observed (°C): Temps Corrected (°C): Acceptable is: 0.1° to 10°C for Bacteria: arid 0.1° to 6°C for most other water parameters. Samples may not have had adequate time to cool following coilection. Indicate ROI (Received on ice) for iced samples received on the same day as sampled, in addition to temperature at receipt. 1 <NS>ROI?Yes Client contact for temperatures outside method criteria must be documented below. 3 Emission rate of samples for radiochemical analyses < 0,5mR/hr? 4 COC Number (If applicable): 5 Do the number of bottles agree with the COC? 6 Were the samples received intact? (no broken botties, leaks, etc.) 7 Were the sample custody seals intact? 8 Is the COC properly completed, legible, and signed? Sample Verification. Labeling & Distribution Yes No N/A No N/A No N/A Yes Yes No ^1 iP/co/c/ icsl U- Ac, 1 Were all requested analyses understood and appropriate? Did the bottle labels correspond with the COC information? Samples collected in method-prescribed containers? Sample Preservation: pH at Receipt:Final pH (if added in lab):Pr No 2 NoIS 3 No 4 Total Metals Diss Metals Nutrient eservative/Lot#Date/Time Added: Total Metals Diss Metals Nutrient Cyanide Suifide Phenoi SDWA Rads 5 VOA vials have <6mm headspace? 6 Were all analyses within holding time at the time of receipt? 7 Have rush or project due dates been checked and accepted? 8 Do samples require subcontracted analyses? If "Yes", which type of subcontracting is required? Sample Receipt, Verification, Login, Labeling & Distribution completed by (initials): HNO3 Filtered and preserved in Cyanide Suifide ZnAcet H2SO4. HN03_ Phenoi SDWA Rads Yes Yes Yes General Custo metais H2SO4 NaOH Filtered and preserved in metals (mNo No No mer-Specified Certifiedru Set ID: Discrepancy Documentation (use back of sheet for notes on discrepancies) Any items listed above with a response of "No" or do not meet specifications must be resolved. Person Contacted:Method of Contact: Phone: Initiated By_;_ Problem: Date/Time:Email: Resolution: Qualtrax ID: 70962 Pace® Analytical Services, LLC Page 1 of 1 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 62 of 139 10/7/2024Date: Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Samples BLANK B-1, BLANK B-2, BLANK B-3, BLANK B-4, H10, H6, H7, H8, H9, I1, I10, I2, I3, I4, I5, I6, I7, I8, I9, J1, J10, J2, J3, J4, J5, J5 DUP, J6, J7, J8 and J9 were received on October 3, 2024. All samples were received and analyzed within recommended holding times, except those noted below in this case narrative. Samples were analyzed using methods outlined in the following references: Standard Methods for the Examination of Water and Wastewater, approved method versions EPA Test Methods for Evaluating Solid Waste, Physical/Chemical Methods, SW-846, online versions EPA methods 40 CFR Parts 136 and 141EPA 600/2-78-054 methods NDEP Mining Methods 40 CFR Part 50, Appendices B, J, L, O and FEM EQL-0310-189 IO Compendium Methods Clean Water Act Methods Update Rule for the Analysis of Effluent, current version. ASTM approved and recognized standards ISO approved and recognized standards USDA Handbook 60 Soil Survey Laboratory Manual Ver 4.0 ASA/SSSA 9 Methods of Analysis Part 2, 1982 ASA/SSSA Methods of Analysis Book 5 Part 3, 1996 Other industry approved methods All Quality Control parameters met the acceptance criteria defined by EPA and Pace Analytical except as indicated in this case narrative: Project:SHOOTARING CMP-UT AQ ID 14169 4TH QTR CLIENT:Anfield Resources Lab Order:S2410070 CASE NARRATIVE Report ID:S2410070001 Wade Nieuwsma, Laboratory Operations Manager Entire Report Reviewed by: Page 1 of 2 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‶㌠潦‱㌹ 10/7/2024Date: Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Definitions RL Reporting Limit Qualifiers * Value exceeds Maximum Contaminant Level A Check MSA specifications B Analyte detected in the associated Method Blank C Calculated Value D Report limit raised due to dilution E Value above quantitation range G Analyzed at Pace Gillette, WY laboratory H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits L Analyzed by another laboratory M Value exceeds Monthly Ave or MCL or is less than LCL N Sample analyzed outside of compliance requirements ND Not Detected at the Reporting Limit O Outside the Range of Dilutions P Sample preserved in lab at time of receipt R RPD outside accepted recovery limits S Spike Recovery outside accepted recovery limits U Analyte below method detection limit X Matrix Effect Page 2 of 2 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‶㐠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 4TH QTR Work Order:S2410070 Date Reported: Sample Analysis Report Report ID:S2410070001 Date Received:10/3/2024 COC:Sampler:GAG/SAG 10/7/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:H6 Lab ID:S2410070-001 Collection Date:10/2/2024 7:47:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 09:270.5 pCi/m2-sec7.7 WN EPA 115Radon-222 Client Sample ID:H7 Lab ID:S2410070-002 Collection Date:10/2/2024 7:46:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 09:500.5 pCi/m2-sec6.8 WN EPA 115Radon-222 Client Sample ID:H8 Lab ID:S2410070-003 Collection Date:10/2/2024 7:46:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 10:020.5 pCi/m2-sec10.1 WN EPA 115Radon-222 Client Sample ID:H9 Lab ID:S2410070-004 Collection Date:10/2/2024 7:46:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 10:140.5 pCi/m2-sec20.0 WN EPA 115Radon-222 Client Sample ID:H10 Lab ID:S2410070-005 Collection Date:10/2/2024 7:46:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 10:250.5 pCi/m2-sec5.0 WN EPA 115Radon-222 Client Sample ID:I1 Lab ID:S2410070-006 Collection Date:10/2/2024 7:49:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 10:370.5 pCi/m2-sec19.3 WN EPA 115Radon-222 Page 1 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‶㔠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 4TH QTR Work Order:S2410070 Date Reported: Sample Analysis Report Report ID:S2410070001 Date Received:10/3/2024 COC:Sampler:GAG/SAG 10/7/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:I2 Lab ID:S2410070-007 Collection Date:10/2/2024 7:48:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 10:480.5 pCi/m2-sec17.9 WN EPA 115Radon-222 Client Sample ID:I3 Lab ID:S2410070-008 Collection Date:10/2/2024 7:48:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 11:000.5 pCi/m2-sec19.0 WN EPA 115Radon-222 Client Sample ID:I4 Lab ID:S2410070-009 Collection Date:10/2/2024 7:48:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 11:110.5 pCi/m2-sec12.1 WN EPA 115Radon-222 Client Sample ID:I5 Lab ID:S2410070-010 Collection Date:10/2/2024 7:47:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 11:230.5 pCi/m2-sec10.3 WN EPA 115Radon-222 Client Sample ID:I6 Lab ID:S2410070-011 Collection Date:10/2/2024 7:47:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 11:470.5 pCi/m2-sec6.1 WN EPA 115Radon-222 Client Sample ID:I7 Lab ID:S2410070-012 Collection Date:10/2/2024 7:47:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 11:590.5 pCi/m2-sec5.8 WN EPA 115Radon-222 Page 2 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‶㘠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 4TH QTR Work Order:S2410070 Date Reported: Sample Analysis Report Report ID:S2410070001 Date Received:10/3/2024 COC:Sampler:GAG/SAG 10/7/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:I8 Lab ID:S2410070-013 Collection Date:10/2/2024 7:46:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 12:120.5 pCi/m2-sec10.8 WN EPA 115Radon-222 Client Sample ID:I9 Lab ID:S2410070-014 Collection Date:10/2/2024 7:46:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 12:240.5 pCi/m2-sec23.9 WN EPA 115Radon-222 Client Sample ID:I10 Lab ID:S2410070-015 Collection Date:10/2/2024 7:46:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 12:360.5 pCi/m2-sec27.2 WN EPA 115Radon-222 Client Sample ID:J1 Lab ID:S2410070-016 Collection Date:10/2/2024 7:50:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 12:480.5 pCi/m2-sec14.2 WN EPA 115Radon-222 Client Sample ID:J2 Lab ID:S2410070-017 Collection Date:10/2/2024 7:49:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 12:590.5 pCi/m2-sec24.4 WN EPA 115Radon-222 Client Sample ID:J3 Lab ID:S2410070-018 Collection Date:10/2/2024 7:48:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 13:110.5 pCi/m2-sec7.1 WN EPA 115Radon-222 Page 3 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‶㜠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 4TH QTR Work Order:S2410070 Date Reported: Sample Analysis Report Report ID:S2410070001 Date Received:10/3/2024 COC:Sampler:GAG/SAG 10/7/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:J4 Lab ID:S2410070-019 Collection Date:10/2/2024 7:48:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 13:230.5 pCi/m2-sec4.9 WN EPA 115Radon-222 Client Sample ID:J5 Lab ID:S2410070-020 Collection Date:10/2/2024 7:47:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 13:340.5 pCi/m2-sec2.0 WN EPA 115Radon-222 Client Sample ID:J5 DUP Lab ID:S2410070-021 Collection Date:10/2/2024 7:47:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 13:580.5 pCi/m2-sec1.6 WN EPA 115Radon-222 Client Sample ID:J6 Lab ID:S2410070-022 Collection Date:10/2/2024 7:47:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 14:100.5 pCi/m2-sec3.8 WN EPA 115Radon-222 Client Sample ID:J7 Lab ID:S2410070-023 Collection Date:10/2/2024 7:47:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 14:220.5 pCi/m2-sec6.2 WN EPA 115Radon-222 Client Sample ID:J8 Lab ID:S2410070-024 Collection Date:10/2/2024 7:40:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 14:340.5 pCi/m2-sec3.2 WN EPA 115Radon-222 Page 4 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‶㠠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 4TH QTR Work Order:S2410070 Date Reported: Sample Analysis Report Report ID:S2410070001 Date Received:10/3/2024 COC:Sampler:GAG/SAG 10/7/2024CLIENT:Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Client Sample ID:J9 Lab ID:S2410070-025 Collection Date:10/2/2024 7:46:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 14:460.5 pCi/m2-sec20.3 WN EPA 115Radon-222 Client Sample ID:J10 Lab ID:S2410070-026 Collection Date:10/2/2024 7:46:00 AM Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 14:570.5 pCi/m2-sec18.2 WN EPA 115Radon-222 Client Sample ID:BLANK B-1 Lab ID:S2410070-027 Collection Date: Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 15:090.5 pCi/m2-secND WN EPA 115Radon-222 Client Sample ID:BLANK B-2 Lab ID:S2410070-028 Collection Date: Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 15:210.5 pCi/m2-secND WN EPA 115Radon-222 Client Sample ID:BLANK B-3 Lab ID:S2410070-029 Collection Date: Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 15:330.5 pCi/m2-secND WN EPA 115Radon-222 Client Sample ID:BLANK B-4 Lab ID:S2410070-030 Collection Date: Matrix:Solid Analyses Result Qual Units Date Analyzed/InitRL Method Radon Flux 10/04/2024 15:450.5 pCi/m2-secND WN EPA 115Radon-222 Page 5 of 5 These results apply only to the samples tested. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‶㤠潦‱㌹ Project:SHOOTARING CMP-UT AQ ID 14169 4TH QTR CLIENT:Anfield Resources Work Order:S2410070 ANALYTICAL QC SUMMARY REPORT Report ID:S2410070001 10/7/2024Date: Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Radon Flux Sample Type MBLK Units:pCi/Can Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:224906MB START (10/04/24 09:15) Radon-222 60ND Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:224906MB END (10/04/24 16:33) Radon-222 60ND Radon Flux Sample Type LCS1 Units:pCi/Can Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo: 224906STD LOW START (10/04/24 07:50) 387 90 - 110Radon-222 99.20.5384 Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:224906STD LOW END (10/04/24 16:45) 387 90 - 110Radon-222 93.50.5362 Radon Flux Sample Type LCS2 Units: pCi/Can Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:224906STD HIGH START (10/04/24 09:02) 3870 90 - 110Radon-222 1010.53910 Analyte Spike Ref Samp %REC % Rec Limits QualRLResult RunNo:224906STD HIGH END (10/04/24 16:20) 3870 90 - 110Radon-222 98.70.53820 Radon Flux Sample Type DUP Units:pCi/m2-sec Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult RunNo:224906S2410070-001ADUP (10/04/24 09:39) 7.7 100.576Radon-222 0.57.6 Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult RunNo: 224906S2410070-010ADUP (10/04/24 11:35) 10.3 101.62Radon-222 0.510.2 Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult RunNo:224906S2410070-020ADUP (10/04/24 13:46) 2.0 100.406Radon-222 0.52.0 Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult RunNo: 224906S2410070-030ADUP (10/04/24 15:56) ND 10Radon-222 0.5ND Page 1 of 1䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‷〠潦‱㌹ state of Utah Department of Health and Human Services Environmental Laboratory Certification Program Accreditation is hereby granted to Pace Analytical Services, LLC - Sheridan, WY 1673 Terra Avenue Sheridan, WY 82801 Has conformed with the 2016 TNI Standard Scope of accreditation is limited to the State of Utah accredited fields that accompany this Certificate EPA Number: Expiration Date: Certificate Number: WY000052023-12 WY00005 3/31/2024 Kristin Brown Program Managerl . 7k ●i.'i r ^ n» TNI I Ji ,iti , )i-|),ii Nnc’ii . iiAHealth & HumanContinued accredited status depends on successfui ongoing participation in the program. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 71 of 139 Department of Health Human Services TRACY S. GRUBER Executive Director \ '^??ijggr NATE CHECKETTS Deputy Director f \ DR. MICHELLE HOFMANNState of Utah SPENCER J. COX Executive Medical Director DAVID LITVAK Deputy Director Governor DEIDRE HENDERSON Lieutenant Governor NATE WINTERS Deputy Director EPA Number: WY00005 Pace Analytical Services, LLC - Sheridan, WY Attachment to Certificate Number: WY000052023-12 Page I of 7 Start Date Expires AB Program/Matrix: CWA (Non Potable Water) Method ASTM D7237-10 Free cyanide Method Eichrom method Uranium in Water Isotopic uranium Method EPA1664A Hexane Extractable Material (HEM) Method EPA 1664A (SGT-HEM) Hexane Extractable Material - Silica Gel Treated (HEM-SGT) Method EPA 200.2 Acid Digestion of Aqueous samples and Extracts for Total Metals Method EPA 200.7 Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Method Code: 30032930 02/25/22 03/31/24 UT Year: 2014 Method Code: 60002768 02/25/22 03/31/24 UT Revision: 1 Year: 1999 Method Code: 10127807 02/01/15 03/31/24 UT Method Code: 10261606 02/01/15 03/31/24 UT Method Code: 10263806 03/01/18 03/31/24 UT Revision; 4.4 Year: 1994 Method Code: 10013806 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 03/13/23 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Phosphorus, total Potassium Scandium Selenium Silver Sodium Strontium 195 North 1950 West, Salt Lake City, Utah 84116 telephone (801) 965-2400 | fax (801) 538-4151 | email: labimprovement(^utah.gov web; htfn.s://iinhl.iitah.20v/cerfif1cation.sAnfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 72 of 139 EPA Number: WY00005 Pace Analytical Services, LLC - Sheridan, WY Attachment to Certificate Number: WY000052023-12 Pagii 2 of 7 Start Date Expires AB Program/Matrix: CWA (Non Potable Water) Sulfur Thallium Thorium 02/25/22 03/31/24 UT 02/01/15 03/31/24 UT 02/25/22 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT Revision: 5 Year: 1998 Method Code: 10014003 03/01/18 03/31/24 UT Method Code: 10014401 03/13/23 03/31/24 UT Revision: 5.4 Year: 1994 Method Code: 10014605 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 03/13/23 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT Revision: 5.5 Year: 1998 Method Code: 10014809 02/01/15 03/31/24 UT Revision: 3 Year: 1994 Method Code: 10036609 02/01/15 03/31/24 UT Revision: 2.1 Year: 1993 Method Code; 10053200 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT Revision: 1 Year: 1993 Method Code: 10061402 Tin Titanium Vanadium Zinc Method EPA 200.7 Silica as Si02 Method EPA 200.8 Gallium Method EPA 200.8 Aluminum Antimony Arsenic Barium Beryllium Bismuth Cadmium Chromium Cobalt Copper Lead Manganese Molybdenum Nickel Selenium Silver Strontium Thallium Tin Uranium Vanadium Zinc Method EPA 200.8 Titanium Method EPA 245.1 Mercury Method EPA 300.0 Nitrate plus Nitrite as N Bromide Chloride Fluoride Nitrate as N Nitrite as N Orthophosphate as P Sulfate Method EPA 335.4 195 North 1950 West, Salt Lake City, Utah 841 16 telephone (801) 965-2400 | fax (801) 538-4151 | email: labimprovement@utah.gov web: liftns://iinhI.Utah.ynv/certit1cationsAnfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 73 of 139 EPA Number: WY00005 Pace Analytical Services, LLC - Sheridan, WY Attachment to Certificate Number: WY000052023-12 Page 3 of 7 Start Date Expires AB Program/Matrix: CWA (Non Potable Water) Total cyanide Method EPA 350.1 Ammonia as N Method EPA 351.2 Kjeldahl Nitrogen (Total Kjeldahl Nitrogen-TKN) Method EPA 353.2 Nitrate plus Nitrite as N Nitrate as N Nitrite as N Method EPA 6020 Uranium Total (mass) Method GATech Ra-226/228 Radium-226 Radium-228 Method HACH8131 Sulfide Method OIA 1677-09 Available Cyanide Method SM 18/19thED 7500-Ra B Total radium Method SM2310B-2011 Acidity, as CaC03 Method SM 2320 B-1997 Alkalinity as CaC03 Method SM 2320 B-2011 Alkalinity as CaC03 Method SM 2340 B-1997 Total hardness as CaC03 Method SM2340 B-2011 Total hardness as CaC03 Method SM2510B-2011 Conductivity Method SM 2540 C-1997 Residue-filterable (TDS) Method SM2540 C-2015 Residue-filterable (TDS) Method SM2540 D-1997 Residue-nonfilterable (TSS) Method SM 2540 D-2015 Residue-nonfilterable (TSS) Method SM 4500-F“C-2011 Fluoride Method SM 4500-H+B-2011 02/01/15 03/31/24 UT Revision: 2 Year: 1993 Method Code: 10063602 02/01/15 03/31/24 UT Revision: 2 Year: 1993 Method Code: 10065404 02/01/15 03/31/24 UT Revision; 2 Year: 1993 Method Code: 10067604 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT 02/01/15 03/31/24 UT Year; (9/94) Method Code: 10156000 03/13/23 03/31/24 UT Revision: 1.2 Year: 2004 Method Code: 90016005 02/25/22 03/31/24 UT 02/25/22 03/31/24 UT Method Code: 60003783 03/13/23 03/31/24 UT Year: 2010 Method Code: 60031450 05/24/22 03/31/24 UT Method Code: 20033801 02/01/15 03/31/24 UT Year: 2011 Method Code: 20044615 05/24/22 03/31/24 UT Revision: 20th ED Year: 1997 Method Code: 20045209 02/01/15 03/31/24 UT Year: 2011 Method Code: 20045618 02/01/22 03/31/24 UT Year: 1997 Method Code: 20046600 02/01/22 03/31/24 UT Year: 2011 Method Code: 20046611 02/01/15 03/31/24 UT Year: 2011 Method Code: 20048617 02/01/15 03/31/24 UT Revision: 20th ED Year: 1997 Method Code: 20050004 02/01/15 03/31/24 UT Year: 2015 Method Code: 20050435 02/01/22 03/31/24 UT Revision: 20th ED Year: 1997 Method Code: 20050800 02/01/15 03/31/24 UT Year: 2015 Method Code: 20051223 02/01/22 03/31/24 UT Year: 2011 Method Code: 20102414 02/01/15 03/31/24 UT Year: 2011 Method Code: 20105220 02/01/15 03/31/24 UT Year: 2014 Method Code: 20137831 05/24/22 03/31/24 UT Revision: 20th ED Method Code: 20156609 pH Method SM5310B-2014 Total organic carbon Method SM7110B(GPC) 195 North 1950 West, Salt Lake City, Utah 841 16 telephone (801) 965-2400 | fax (801) 538-4151 | email; labimprovement@utah.gov web; htTns;//iinhl.i)tah.ffov/certificationsAnfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 74 of 139 EPA Number: WY00005 Pace Analytical Services, LLC - Sheridan. WY Attachment to Certificate Number: WY000052023-12 Page 4 of 7 Start Date Expires AB Program/Matrix: CWA (Non Potable Water) Gross-alpha Gross-beta Method SM 7500-Ra B (GPC)-2001 Total radium 02/01/15 02/01/15 Revision: 22nd ED Year: 2001 02/01/22 03/31/24 UT 03/31/24 UT Method Code: 20170416 03/31/24 UT 195 North 1950 West, Salt Lake City. Utah 841 16 telephone (801) 965-2400 | fax (801) 538-4151 | email: labimprovement@utah.gov web: httns://i!nhl.Utah.ffov/cerlificationsAnfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 75 of 139 EPA Number: WY00005 Pace Analytical Services, LLC - Sheridan, WY Attachment to Certificate Number: WY000052023-12 Page 5 of 7 Start Date Expires AB Program/WIatrix: RCRA (Non Potable Water) Method EPA 053917 p. 33 EMSL LV Thorium-230 Method EPA 1311 Toxicity Characteristic Leaching Procedure (TCLP) Method EPA 1312 Synthetic Precipitation Leaching Procedure Synthetic Precipitation Leaching Procedure (SPLP) Method EPA3020A Acid Digestion of Aqueous samples and Extracts for Total Metals Method EPA 6010 Phosphorus, total Method EPA6010C Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Chromium Method Code: 10251806 03/13/23 03/31/24 UT Revision: 0 Year: 1992 Method Code: 10118806 02/25/22 03/31/24 UT Revision: 0 Year: 1994 Method Code: 10119003 02/25/22 03/31/24 UT Revision: 1 Year: 1992 Method Code: 10134404 03/01/18 03/31/24 UT Year: (9/86) Method Code: 10155201 03/13/23 03/31/24 UT Year: (11/00) Method Code: 10155803 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 03/01/18 02/01/15 02/01/15 02/25/22 02/01/15 02/25/22 02/01/15 02/01/15 02/01/15 02/01/15 Revision: 0 Year: 1994 Method Code: 10156204 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 03/31/24 03/31/24 03/31/24 03/31/24 03/31/24 03/31/24 03/31/24 03/31/24 UT UT UT UT UT UT UT UT Cobalt Copper Iron Lead Lithium Manganese Molybdenum Nickel Selenium Silica as Si02 Silver Strontium Sulfur Thallium Thorium Tin Titanium Vanadium Zinc Method EPA 6020 Aluminum Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt 195 North 1950 West, Salt Lake City, Utah 84116 telephone (801) 965-2400 | fax {801) 538-4151 | email: labimprovement@utah.gov web: httns://unhI.utah.eov/certificationsAnfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 76 of 139 EPA Number: WY00005 Pace Analytical Services, LLC - Sheridan, WY Attachment to Certificate Number: WY000052023-12 Page 6 oP7 Start Date Expires AB Program/Matrix: RCRA (Non Potable Water) Lead Manganese Molybdenum Nickel Selenium Silver Strontium Thallium 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 Year: (1/98) Method Code: 10156408 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/15 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 03/31/24 03/31/24 03/31/24 03/31/24 03/31/24 03/31/24 03/31/24 03/31/24 03/31/24 03/31/24 03/31/24 03/31/24 UT UT UT UT UT UT UT UT UT UT UT UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT Tin Titanium Vanadium Zinc Method EPA6020A Aluminum Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Manganese Molybdenum Nickel Selenium Silver Strontium Thallium Revision: 1 Year: 1994 Method Code; 10165807 02/01/22 03/31/24 UT Year: 1978 Method Code: 10289222 02/25/22 03/31/24 UT Revision: 21st ED Method Code: 20170405 02/25/22 03/31/24 UT Tin Titanium Vanadium Zinc Method EPA7470A Mercury Method EPA/600/2-78/054 Sec 3.2.2 Paste pH pH Method SM 7500-Ra B (GPC) Radium-226 195 North i950 West, Salt Lake City. Utah 841 16 telephone {801) 965-2400 | fax (801) 538-4151 | email: labimprovement@utah.gov weh: httns://iinhl.utah.0ov/certificationsAnfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 77 of 139 EPA Number: WY00005 Pace Analytical Services, LLC - Sheridan, WY Attachment to Certificate Number: WY000052023-12 Page 7 of7 Start Date Expires AB Program/Matrix: RCRA (Solid & Hazardous Material) Method ASTMD5744-13 Preparation/Extraction Method ASTM E2242-13 Meteoric water mobility procedure Method EPA 1311 Toxicity Characteristic Leaching Procedure (TCLP) Method EPA 1312 Synthetic Precipitation Leaching Procedure Synthetic Precipitation Leaching Procedure (SPLP) Method EPA3050B Acid Digestion of Solids Method EPA 6010 Antimony Beryllium Nickel Method EPA 601OC Arsenic Barium Cadmium Chromium Lead Selenium Silver Sulfur Thorium Method EPA 7470 Mercury Method EPA 7471B Mercury Method EPA 901.1 Gamma Emitters Method EPA 9081 Cation exchange capacity Method ASTM D422-63 (07) Grain size (sieving) Method SM 7500-Ra B (GPC) Radium-226 Year: 2013 02/25/22 Year: 2013 02/25/22 Revision: 0 Year: 1992 02/01/15 Revision: 0 Year: 1994 Method Code: 30032281 03/31/24 UT Method Code: 30045524 03/31/24 UT Method Code: 10118806 03/31/24 UT Method Code: 10119003 02/25/22 Revision: 2 Year: 1996 03/01/18 Year: (9/86) 03/13/23 03/13/23 03/13/23 Year: (11/00) 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/25/22 02/25/22 Year: (9/86) 02/01/15 Year: (1/98) 02/01/22 03/31/24 UT Method Code: 10135601 03/31/24 UT Method Code: 10155201 03/31/24 UT 03/31/24 UT 03/31/24 UT Method Code: 10155803 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT 03/31/24 UT Method Code: 10165603 03/31/24 UT Method Code: 10166402 03/31/24 UT Method Code: 10308608 03/31/24 UT Method Code: 10203404 03/31/24 UT Method Code: 30030854 03/31/24 UT Method Code: 20170405 03/31/24 UT 02/25/22 Revision: 0 Year: 1986 02/25/22 Year: 1963 02/25/22 Revision: 21st ED 02/25/22 The Utah Environmental Laboratory Certification Program (ELCP) encourages clients and data users to verify the most current certification letter for the authorized method. The analytes by method which a laboratory is authorized to perform at any given time will be those indicated in the most recent certificate letter. The most recent certification letter supersedes all previous certification or authorization letters. It is the certified laboratory's responsibility to review this letter for discrepancies. The certified laboratory must document any discrepancies in this letter and send notice to this bureau within 15 days of receipt. This certificate letter will be recalled in the event your laboratory's certification is revoked. 195 North 1950 West, Salt Lake City, Utah 841 16 telephone (801) 965-2400 | fax (801) 538-4151 | email: labimprovementi@utah.gov weh: httns://unhl.iifah.gov/certificatinnsAnfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 78 of 139 state of Utah Department of Health and Human Services Environmental Laboratory Certification Program Accreditation is hereby granted to Pace Analytical Services,LLC -Sheridan,WY 1673 Terra Avenue Sheridan,WY 82801 Has conformed with the 2016 TNI Standard Scope of accreditation is limited to the State of Utah accredited fields that accompany this Certificate EPA Number: Expiration Date: Certificate Number:WY000052024-16 WY00005 3/31/2025 Brown Program Manager D Services Utah Department of Health &HumanContinuedaccreditedstatusdependsonsuccessfulongoingparticipationintheprogram. 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‷㤠潦‱㌹ yRECO(j,Department of Health Human Services TRACY S.GRUBER Executive Director NATE CHECKETTS Deputy Director DR.MICHELLE HOFMANN '(LV./"' State of I tah SPENCER J.COX Executive Medical Director DAVID LITVAKGovernor Deputy DirectorDEIDREHENDERSON Lieutenant Governor NATE WINTERS Deputy Director EPA Number:WY00005 Pace Analytical Services,LLC -Sheridan,WY Attachment to Certificate Number:WY000052024-16 Start Date Expires AB Page I of9 Program/Matrix:ON/K (Non Potable Water) Method ASTM D7237-10 Free cyanide Method Eichrom method Uranium in Water Isotopic uranium Method EPA1664A Hexane Extractable Material (HEM) Method EPA1664A(SGT-HEM) Hexane Extractable Material -Silica Gel Treated (HEM-SGT) Method EPA 200.2 Acid Digestion of Aqueous samples and Extracts for Total Metals Method EPA 200.7 Method Code:30032930 02/25/22 03/31/25 UT Year:2014 Method Code:60002768 02/25/22 03/31/25 UT Revision:1 Year:1999 Method Code:10127807 02/01/15 03/31/25 UT Method Code:10261606 02/01/15 03/31/25 UT Revision:2.8 Year:1989 Method Code:10013204 03/01/18 03/31/25 UT Revision:4.4 Year:1994 Method Code:10013806 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 03/13/23 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Phosphorus,total Potassium Scandium Selenium Silver Sodium Strontium 195 North 1950 West,Salt Lake City,Utah 84116 telephone (801)965-2400 |fax (801)538-4151 |email:labimprovement@utah.gov web:hftns://imhl utah.ffov/certifications䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‸〠潦‱㌹ Page 2 of 9EPANumber:WY00005 Pace Analytical Services,LLC -Sheridan,WY Attachment to Certificate Number:WY000052024-16 Start Date Expires AB Program/Matrix:CWA (Non Potable Water) Sulfur Thallium Thorium 02/25/22 02/01/15 02/25/22 02/01/15 02/01/15 02/01/15 02/01/15 Revision:5 Year:1998 03/01/18 03I3M25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT Method Code:10014003 03/31/25 UT Method Code:10014401 03/31/25 UT Method Code:10014605 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT Method Code:10014809 03/31/25 UT Method Code:10036609 03/31/25 UT Method Code:10053200 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT Method Code:10061402 Tin Titanium Vanadium Zinc Method EPA 200.7 Silica as Si02 Method EPA 200.8 Gallium Method EPA 200.8 Aluminum Antimony Arsenic Barium Beryllium Bismuth Cadmium Chromium Cobalt 03/13/23 Revision:5.4 Year:1994 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 03/13/23 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 Revision:5.5 Year:1998 02/01/15 Revision:3 Year:1994 02/01/15 Revision:2.1 Year:1993 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 Revision:1 Year:1993 Copper Lead Manganese Molybdenum Nickel Selenium Silver Strontium Thallium Tin Uranium Vanadium Zinc Method EPA 200.8 Titanium Method EPA 245.1 Mercury Method EPA 300.0 Nitrate plus Nitrite as N Bromide Chloride Fluoride Nitrate as N Nitrite as N Orthophosphate as P Sulfate Method EPA 335.4 195 North 1950 West,Salt Lake City,Utah 84116 telephone (801)965-2400 |fax (801)538-4151 |email:labimprovement(@utah.gov web:httns://iinhl.Mtah.gov/certifications䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‸ㄠ潦‱㌹ Attachment to Certificate Number:WY000052024-16 Start Date Expires AB Page 3 of 9EPANumber:WY00005 Pace Analytical Services,LLC -Sheridan,WY Program/Matrix:Cl/VA (Non Potable Water) Total cyanide Method EPA 350.1 Ammonia as N Method EPA 351.2 Kjeldahl Nitrogen (Total Kjeldahl Nitrogen-TKN) Method EPA 353.2 Nitrate plus Nitrite as N Nitrate as N Nitrite as N Method EPA 6020 Uranium Total (mass) Method GA Tech Ra-226/228 Radium-226 Radium-228 Method HACH8131 Sulfide Method OIA 1677-09 Available Cyanide Method SM 18/19thED 7500-Ra B Total radium Method SM2310B-2011 Acidity,as CaC03 Method SM 2320 B-1997 Alkalinity as CaC03 Method SM 2320 B-2011 Alkalinity as CaC03 Method SM 2340 B-1997 Total hardness as CaC03 Method SM 2340 B-2011 Total hardness as CaC03 Method SM2510B-2011 Conductivity Method SM 2540C-1997 Residue-filterable (TDS) Method SM 2540C-2015 Residue-filterable (TDS) Method SM 2540 D-1997 Residue-nonfilterable (TSS) Method SM 2540 D-2015 Residue-nonfilterable (TSS) Method SM4500-CN“1-2011 Weak Acid Dissociable Cyanide Method SM4500-CN“1-2016 Weak Acid Dissociable Cyanide Method SM4500-F“C-2011 Fluoride Method SM 4500-H+B-2011 02/01/15 03/31/25 UT Revision:2 Year:1993 Method Code:10063602 02/01/15 03/31/25 UT Revision:2 Year:1993 Method Code:10065404 02/01/15 03/31/25 UT Revision:2 Year:1993 Method Code:10067604 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT Year:(9/94)Method Code:10156000 03/13/23 03/31/25 UT Revision:1.2 Year:2004 Method Code:90016005 02/25/22 03/31/25 UT 02/25/22 03/31/25 UT Method Code:60003783 03/13/23 03/31/25 UT Year:2010 Method Code:60031450 05/24/22 03/31/25 UT Method Code:20033801 02/01/15 03/31/25 UT Year:2011 Method Code:20044615 05/24/22 03/31/25 UT Revision:20th ED Year:1997 Method Code:20045209 02/01/15 03/31/25 UT Year:2011 Method Code:20045618 02/01/22 03/31/25 UT Year:1997 Method Code:20046600 02/01/22 03/31/25 UT Year:2011 Method Code:20046611 02/01/15 03/31/25 UT Year:2011 Method Code:20048617 02/01/15 03/31/25 UT Revision:20th ED Year:1997 Method Code:20050004 02/01/15 03/31/25 UT Year:2015 Method Code:20050435 02/01/22 03/31/25 UT Revision:20th ED Year:1997 Method Code:20050800 02/01/15 03/31/25 UT Year:2015 Method Code:20051223 02/01/22 03/31/25 UT Revision:2011 Method Code:20098026 01/01/24 03/31/25 UT Revision:23rd Year:2016 Method Code:20098037 03/06/24 03/31/25 UT Year:2011 Method Code:20102414 02/01/15 03/31/25 UT Year:2011 Method Code:20105220 195 North 1950 West,Salt Lake City,Utah 84116 telephone (801)965-2400 |fax (801)538-4151 |email:labimprovement(@utah.gov web:httns://iinhl.utah.ffnv/certifications䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‸㈠潦‱㌹ Page 4 of 9EPANumber:WY00005 Pace Analytical Services,LLC -Sheridan,WY Attachment to Certificate Number:WY000052024-16 start Date Expires AB Program/Matrix:CWA (Non Potable Water) 02/01/15 03/31/25 UT Year:2014 Method Code:20137831 05/24/22 03/31/25 UT Revision;20th ED Method Code:20156609 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT Revision:22nd ED Year:2001 Method Code:20170416 02/01/22 03/31/25 UT pH Method SM5310B-2014 Total organic carbon Method SM7110B(GPC) Gross-alpha Gross-beta Method SM 7500-Ra B (GPC)-2001 Total radium 195 North 1950 West,Salt Lake City,Utah 84116 telephone (801)965-2400 |fax (801)538-4151 |email:labimprovement@utah.gov web:httns://nnhl.ijtah.ffov/certification.s䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‸㌠潦‱㌹ Page 5 of 9AttachmenttoCertificateNumber:WY000052024-16 Start Date Expires AB EPA Number:WY00005 Pace Analytical Services,LLC -Sheridan,WY Program/Matrix:RCRA (Non Potable Water) Method Eichrom method Uranium in Water Thorium-230 Method EPA 053917 p.33 EMSL LV Thorium-230 Method EPA 1311 Toxicity Characteristic Leaching Procedure (TCLP) Method EPA 1312 Synthetic Precipitation Leaching Procedure Synthetic Precipitation Leaching Procedure (SPLP) Method EPA3020A Acid Digestion of Aqueous samples and Extracts for Total Metals Method EPA 6010 Phosphorus,total Method EPA 601OC Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Chromium Cobalt Year:2014 Method Code:60002768 08/01/24 03/31/25 UT Method Code:10251806 03/13/23 03/31/25 UT Revision:1 Year:1992 Method Code:10118806 02/25/22 03/31/25 UT Revision:2 Year:1994 Method Code:10119003 02/25/22 03/31/25 UT Revision:1 Year:1992 Method Code:10134404 03/01/18 03/31/25 UT Year;(9/86)Method Code:10155201 03/13/23 03/31/25 UT Year:2000 Method Code:10155803 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 03/01/18 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/25/22 03/31/25 UT 02/01/15 03/31/25 UT 02/25/22 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT Revision:0 Year:1994 Method Code:10156204 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT Copper Iron Lead Lithium Manganese Molybdenum Nickel Selenium Silica as Si02 Silver Strontium Sulfur Thallium Thorium Tin Titanium Vanadium Zinc Method EPA 6020 Aluminum Antimony Arsenic Barium Beryllium Cadmium 195 North 1950 West,Salt Lake City,Utah 84116 telephone (801)965-2400 |fax (801)538-4151 |email:labimprovement(S(utah.gov weh:httns://iinhl.utah.2ov/certifications䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‸㐠潦‱㌹ Page 6 of9EPANumber:WY00005 Pace Analytical Services,LLC -Sheridan,WY Attachment to Certificate Number:WY000052024-16 Start Date Expires AB Program/Matrix:RCRA (Non Potable Water) Chromium Cobalt Lead Manganese Molybdenum Nickel Selenium Silver Strontium Thallium 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 02/01/15 07/08/24 02/01/15 02/01/15 Year:(1/98) 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/15 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 02/01/22 Revision:2 Year:1994 02/01/22 Year:1978 02/25/22 Revision:21st ED 02/25/22 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT Method Code;10156408 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT 03/31/25 UT Method Code:10165807 03/31/25 UT Method Code:10289222 03/31/25 UT Method Code:20170405 03/31/25 UT Tin Titanium Uranium Vanadium Zinc Method EPA6020A Aluminum Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Manganese Molybdenum Nickel Selenium Silver Strontium Thallium Tin Titanium Vanadium Zinc Method EPA7470A Mercury Method EPA/600/2-78/054 Sec 3.2.2 Paste pH pH Method SM 7500-Ra B (GPC) Radium-226 195 North 1950 West,Salt Lake City,Utah 84116 telephone (801)965-2400 |fax (801)538-4151 |email:labimprovement(@utah.gov weh:httns://iinhl.iitah.gov/certifications䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‸㔠潦‱㌹ EPA Number:WY00005 Pace Analytical Services,LLC -Sheridan,WY Attachment to Certificate Number:WY000052024-16 Start Date Expires AB Page 7 of 9 Program/Matrix:RCRA (Solid &Hazardous Material) Method ASTM D5744-13 Preparation/Extraction Method ASTME2242-13 Meteoric water mobility procedure Method EPA 1311 Toxicity Characteristic Leaching Procedure (TCLP) Method EPA 1312 Synthetic Precipitation Leaching Procedure Synthetic Precipitation Leaching Procedure (SPLP) Method EPA3050B Acid Digestion of Solids Method EPA 6010 Aluminum Antimony Beryllium Boron Calcium Cobalt Year;2013 Method Code:30032281 02/25/22 03/31/25 UT Year:2013 Method Code:30045524 02/25/22 03/31/25 UT Revision:1 Year:1992 Method Code:10118806 02/01/15 03/31/25 UT Revision:2 Year:1994 Method Code:10119003 02/25/22 03/31/25 UT Revision:III Year;1996 Method Code:10135601 03/01/18 03/31/25 UT Year:(9/86)Method Code:10155201 08/01/24 03/31/25 UT 03/13/23 03/31/25 UT 03/13/23 03/31/25 UT 08/01/24 03/31/25 UT 08/01/24 03/31/25 UT 08/01/24 03/31/25 UT 08/01/24 03/31/25 UT 08/01/24 03/31/25 UT 08/01/24 03/31/25 UT 08/01/24 03/31/25 UT 08/01/24 03/31/25 UT 08/01/24 03/31/25 UT 03/13/23 03/31/25 UT 08/01/24 03/31/25 UT 08/01/24 03/31/25 UT 08/01/24 03/31/25 UT 08/01/24 03/31/25 UT 08/01/24 03/31/25 UT 08/01/24 03/31/25 UT 08/01/24 03/31/25 UT 08/01/24 03/31/25 UT 03/06/24 03/31/25 UT Year:2000 Method Code:10155803 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/01/15 03/31/25 UT 02/25/22 03/31/25 UT 02/25/22 03/31/25 UT 01/01/24 03/31/25 UT Year:1986 Method Code:10165603 02/01/15 03/31/25 UT Year:(1/98)Method Code:10166402 Copper Iron Lithium Magnesium Manganese Molybdenum Nickel Potassium Sodium Strontium Thallium Tin Titanium Uranium Vanadium Zinc Method EPA 601OC Arsenic Barium Cadmium Chromium Lead Selenium Silver Sulfur Thorium Zinc Method EPA 7470 Mercury Method EPA 7471B 195 North 1950 West,Salt Lake City,Utah 84116 telephone (801)965-2400 |fax (801)538-4151 |email:labimprovement@utah.gov web:httns://iinhLiitah.snv/certificatinns䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‸㘠潦‱㌹ EPA Number;WY00005 Pace Analytical Services,LLC -Sheridan,WY Attachment to Certificate Number;WY000052024-16 Start Date Expires AB Page 8 of 9 Program/Matrix:RCRA (Solid &Hazardous Material) Mercury Method EPA 901.1 Gamma Emitters Method EPA 9081 Cation exchange capacity Method ASTM D422-63 (07) Grain size (sieving) Method SM 7500-Ra B (GPC) Radium-226 02/01/22 03/31/25 UT Year;1980 Method Code;10308608 02/25/22 03/31/25 UT Revision;0 Year;1986 Method Code;10203404 02/25/22 03/31/25 UT Year;1963 Method Code:30030854 02/25/22 03/31/25 UT Revision:21st ED Method Code:20170405 02/25/22 03/31/25 UT 195 North 1950 West,Salt Lake City,Utah 84116 telephone (801)965-2400 |fax (801)538-4151 |email:labimprovement(@utah.govweh:httns://imhl.iitah.ffov/certifications䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‸㜠潦‱㌹ Page 9 of9EPANumber:WY00005 Pace Analytical Services,LLC -Sheridan,WY Attachment to Certificate Number:WY000052024-16 Start Date Expires AB Program/Matrix:SDWA (Potable Water) Method SM2130B-2011 Turbidity Year:2011 Method Code:20048220 03/01/24 03/31/25 UT The Utah Environmental Laboratory Certification Program (ELCP)encourages clients and data users to verify the most current certification letter for the authorized method. The analytes by method which a laboratory is authorized to perform at any given time will be those indicated in the most recent certificate letter. The most recent certification letter supersedes all previous certification or authorization letters.It is the certified laboratory's responsibility to review this letter for discrepancies.The certified laboratory must document any discrepancies in this letter and send notice to this bureau within 15 days of receipt.This certificate letter will be recalled in the event your laboratory's certification is revoked. 195 North 1950 West,Salt Lake City,Utah 84I 16 telephone (801)965-2400 |fax (801)538-4151 |email:labimprovement@utah.gov weh:httns://i]nhl.iitah.CTOv/certificatinns䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴乯癥浢敲‱㔬′〲㐠ⴠ偡来‸㠠潦‱㌹ APPENDIX C STANDARD OPERATING PROCEDURES Balance Operation-Laboratory SOP Radon Flux Measurement by Gamma Counting-Laboratory SOP Radon Flux Measurement, Field Activities-Site SOP to include EPA Method 115-Monitoring For Radon-222 Emissions Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 89 of 139 1 of 19 DocumentInformation DocumentNumber: Revision: DocumentTitle: Department(s): DateInformation EffectiveDate: Notes DocumentNotes: All Dates and Times are listed in: ENV-SOP-SHRT-0155 00 Support Equipment Procedure Wet Chemistry, Rad Chem, Metals, Mining, Quality 16 Sep 2020 Central Time Zone ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 90 of 139 Signature Manifest Document Number:ENV-SOP-SHRT-0155 Revision:00 Title:Support Equipment Procedure All dates and times are in Central Time Zone. ENV-SOP-SHRT-0155 QM Approval Name/Signature Title Date Meaning/Reason Michelle LaGory (990324) Manager - Quality 16 Sep 2020, 10:05:54 AM Approved Management Approval Name/Signature Title Date Meaning/Reason Michelle LaGory (990324) Manager - Quality 16 Sep 2020, 10:06:22 AM Approved 2 of 19 ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 91 of 139 3 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. 1.0 PURPOSE This standard operating procedure (SOP)describes the procedure used for maintaining adequate calibration and operational status of various support equipment throughout the laboratory. 2.0 SCOPE AND APPLICATION The policies and procedures set forth in this document are applicable to all personnel who maintain and calibrate any support equipment noted herein. 3.0 SUMMARY Support equipment listed in this SOP must be calibrated prior to use. Although calibration procedures may vary depending on the equipment, all calibration records must be documented and archived properly. Each piece of support equipment must be labeled, when applicable, with calibration information (e.g., calibration date, initials of person calibrating the equipment, correction factors, if applicable, etc.) and unique numbers indicative of the support equipment must be documented where applicable within the preparation and analysis records. 4.0 DEFINITIONS Refer to the Laboratory Quality Manual for a glossary of common lab terms and definitions. Class A Glassware: volumetric glassware that provides the highest level of accuracy. It complies with the Class A tolerances defined in ASTM E694. It is labeled as Class A and usually comes with a certificate of precision. All Class A volumetric glassware is actually glass; volumetric plasticware is not eligible for Class A status. Reference (with regards to support equipment): equipment which is directly calibrated against a NIST-traceable material. Working (with regards to support equipment): equipment which is calibrated against reference equipment and is used in lab operations. 5.0 HEALTH AND SAFETY Common sense safety practices must be adhered to at all times. It is necessary for proper personal protective equipment to be used around all chemicals and equipment, especially safety glasses, lab coats and gloves. 6.0 PROCEDURE 6.1 General Information Documentation:For equipment requiring daily monitoring, calibration verification and or maintenance, all records must be kept in a controlled logbook or database and should be in the ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 92 of 139 4 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. general area of the equipment. For those pieces of equipment which undergo monitoring, calibration verifications and/or maintenance on a monthly, quarterly or annual (or other frequency) basis, the records may be filed and stored in the Quality department. All records must be organized and available for review by external auditors. Traceability:For equipment requiring calibration and calibration verification, all reference materials must be traceable to NIST reference materials (e.g., calibrated weights and thermometers). All volumetric verification measurements must be traceable to Class A apparatus (e.g., volumetric flasks). Service Status: If equipment is found to be out of the required specification determined for use, it must be removed from service. If it cannot be physically removed to prevent usage, it must be distinctly marked with an “Out of Service” label. When equipment is taken out of service and then returned, records must be made in the associated logbook to identify the out of service period. This is to account for any gaps in the documentation of concerning monitoring, calibration verification and or maintenance. 6.2 Thermometers The lab must maintain a National Institute of Standards and Technologies (NIST) traceable reference thermometer within the laboratory for verifying the accuracy of all other thermometers used in the lab. This reference thermometer must be verified within the timeframe indicated by the provider of the thermometer calibration service (not to exceed 5 years; unless other regulatory requirements exist), with corresponding traceability information that is reviewed and maintained in the Quality office. The calibration of this reference thermometer must be traceable to a NIST standard reference thermometer. The reference thermometer must be calibrated over a range that encompasses the temperature ranges of all subsequent thermometers that are calibrated against it. The EPA drinking water manual requires NIST traceable reference thermometers to be rechecked at least every five years and whenever they are exposed to high temperatures. All thermometers must be uniquely identified and tracked by the local Quality office. The local Quality office must maintain an inventory list of thermometers that contains the unique identification, location, type (if necessary), range of use (if applicable) and calibration information of each thermometer in the lab. All working thermometers must undergo a documented calibration verification process on an annual basis (although some contractual requirements may require quarterly calibration verifications for digital and dial-type thermometers). This verification is performed against the NIST-traceable reference thermometer. Once verified, a correction factor must be designated even if no actual temperature correction is required (e.g., 0.0°C). This verification may be performed by an outside service or by the laboratory. 6.2.1 Recording Temperature Readings:Correction factors must be taken into account whenever temperature measurements are made. It is a good lab practice to record both the observed AND corrected (or “true”) temperatures when making measurements. This ensures no ambiguity in determining whether or not the factor was taken into account at the time the temperature was recorded. 6.2.1.1 A correction factor of “0°” indicates that no bias exists in the working thermometer. Record daily temperatures as observed. ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 93 of 139 5 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. 6.2.1.2 A correction factor of “- X” indicates that X degree(s) must be subtracted from the working thermometer reading when recording temperatures from this thermometer. 6.2.1.3 A correction factor of “+X” indicates that X degree(s) must be added to the working thermometer reading when recording temperatures from this thermometer. 6.2.2 General Thermometer Use 6.2.2.1 Look at thermometer and determine where the level of the mercury or other fluid is in relationship to the markings on the outside. The observed working thermometer reading must be recorded to the nearest graduation of the working thermometer (e.g., 0.5°C). Do not estimate the reading between the graduations. For digital thermometers, the temperature is the observed temperature (with correction factor taken into account). 6.2.2.2 Review corresponding tag and apply the Correction Factor. 6.2.2.3 Record reading in the appropriate logbook for that piece of equipment. 6.2.3 Calibration Verification Procedures 6.2.3.1 The lab has the option of re-calibrating existing thermometers or replacing them with new thermometers with calibration certificates from outside agencies. 6.2.3.2 Refrigerator/Ice Point Thermometer Calibration Method: This method is utilized for the calibration of all refrigerator and cooler temperatures by immersing both the reference and working thermometers in an ice bath and bringing to equilibrium (0oC). Once equilibrium is achieved, the difference, if any, is recorded and used to correct the working thermometer bias. 6.2.3.3 Oven (Warm) Thermometer Calibration Method: This method is utilized for the calibration of all oven and incubator thermometers by placing both the reference (NIST certified) and working thermometers in the oven or incubator and allowing them to reach equilibrium. Once equilibrium is achieved, the difference, if any, is recorded and used to correct the working thermometer bias. Care must be taken to use the same type of NIST certified thermometer as the working thermometer when calibrating (e.g., partial immersion vs. total immersion). However, a digital NIST certified thermometer can be used to calibrate non-digital thermometers. Place both the reference and working thermometer in a beaker filled half way full of sand. Put the beaker in the appropriate oven for the temperature range selected. Allow several minutes (up to an hour) to equilibrate. Record the reading of the NIST certified reference thermometer and then record the reading of the working thermometer to be calibrated. Wait five minutes, then record a second reading for both thermometers. Follow the above procedure for a third reading. Calculate the average reading for both the certified reference thermometer and the working thermometer. Record the difference between these averages in the appropriate section of the form. Be sure all sections of this form are completed properly. ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 94 of 139 6 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. If the average reading for the working thermometer has a correction factor greater than ± 1.0°C the working thermometer must be returned to the Quality office. If the working thermometer is to be used for non-analytical applications (e.g., monitoring a glassware drying oven) where temperatures are monitored but not necessarily recorded for quality purposes, the working thermometer may have a correction factor of up to ± 3.0°C.It should be noted that alcohol working thermometers may not pass the acceptance criteria listed above. The lab may have to find an alternative device (e.g., digital thermometer, pre-certified thermometer) to pass criteria. Create a unique label to document the thermometer number, date of calibration, date the next calibration is due, and the initials of the analyst who calibrated the working thermometer and the proper correction factor. Affix this label to the working thermometer. Thermometers calibrated at oven temperatures must only be used to determine temperatures at or near the oven calibration temperature. A thermometer calibrated at oven temperature is not considered calibrated for use at ice point temperatures. 6.2.3.4 Infrared Thermometer Verification: The IR temperature guns used for sample temperature measurement must be verified against a NIST traceable thermometer in the same general manner as any other liquid filled thermometer. This verification must be performed on a quarterly basis and done within the general range of temperatures routinely measured (e.g., 0° –> 6°C for samples). For labs performing drinking water compliance samples, IR guns must have a daily check performed against a non-IR thermometer. Drinking Water Manual requires that the comparison be < 0.5°C between these two thermometers. The Drinking Water Manual also requires that the lab verify each IR gun every 6 months bracketing the range of use. To verify the accuracy of the IR gun at a sub-ambient temperature, place a temperature blank or 1L container filled with DI water in the sample walk-in refrigerator (or other sub-ambient condition) and allow it to reach equilibration temperature (i.e., overnight). Equilibration can be determined by direct measure of the liquid contained inside using a NIST traceable thermometer. The container must be large enough with sufficient heat capacity to prevent a rapid change in temperature once removed from the climate controlled environment. The container must also have a sample label fixed to the side in the same manner as any sample. Once equilibrated, remove the container from refrigerated conditions and into the ambient room. Leave the NIST thermometer in the liquid to monitor the temperature of the contained liquid. Since samples are measured at ambient temperatures, it is important that the verification be done on materials cooled to 0°-> 6°C but immediately measured in the open room like any other sample. Note: Infrared thermometers can be affected by significant temperature changes in the surrounding environment. Therefore, the IR temperature gun must be in temperature equilibrium with the surrounding environment prior to performing the verification (or taking temperature readings). ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 95 of 139 7 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. Immediately take a measurement of the container surface temperature by focusing the IR sighting on the container label. Hold the trigger down until the reading stabilizes keeping the thermometer focused on the same spot. The reading must be taken immediately after removal from the refrigerated conditions since the container surface will heat up quickly relative to the contents of the bottle. The readings for an IR thermometer are dependent on the emissivity of the surface being measured. The IR guns must be calibrated for each surface that may be measured (e.g., container label, plastic container, etc.) or if the IR gun is preferentially calibrated to measure only on the labels, then the measurements must always be taken on the sample label. Compute a correction factor based on the observed reading and that of the thermometer used to measure the liquid directly. The computation must include any corrections applied to the NIST thermometer itself based on the most recent calibration. 6.3 Weights 6.3.1 Reference weights must be recertified by an approved external vendor every 5 years at a minimum (unless a customer or regulatory requirement supersedes this with a shorter time period). The certifying vendor must provide the laboratory with a copy of a Certificate of Calibration (or equivalent). All reference materials used by the vendor for the recertification must be traceable to NIST (or comparable National Metrology Institute) reference materials. See Attachment II for a listing of the typical applications of each weight class. 6.3.2 All weights must be kept clean, dry and in as pristine condition as possible. Individual weights used in the lab are to be handled using forceps or by some other means (i.e., Kimwipe) to prevent contamination from dirt, moisture or fingerprints. 6.3.3 Working weight sets in the lab are to be uniquely identified or numbered and controlled by the Quality office. The initial or current Certificate of Calibration and documentation showing verification of accuracy of the weights used in the lab must be maintained by the Quality office. 6.3.4 If a weight comes back from the metrology vendor as a lower class weight than needed, this weight needs to be replaced or brought back into specifications by the metrology vendor, if possible. 6.4 Balances 6.4.1 Balances shall be maintained in proper working order. Each balance and its surrounding area must be clean and free of dirt, chemicals and other substances. All laboratory personnel must be responsible for area cleanup following usage of a balance. 6.4.2 Balances are to be positioned on a solid surface, free from vibrations. The surface must be as level as possible with any remaining leveling accomplished via the balance’s own leveling system. Balances must be level prior to calibration verification and use. Balances should also be positioned to minimize or avoid excessive air flow which may affect the ability to produce a stable reading. 6.4.3 Records of all repair and maintenance activities, including service calls, shall be retained. ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 96 of 139 8 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. 6.4.4 Annual Calibration Verification All balances shall be calibrated annually by a qualified service technician using NIST traceable references over the entire range of use. Calibration or verification results shall be reviewed by a member of the Quality office and must be within specifications as noted on the Certificate provided by the vendor. Otherwise, the balance shall be removed from service until repaired and labeled ‘Not in Service’ or other such reference to ensure it is not used by laboratory staff. 6.4.5 Daily Calibration Verification: Balances shall be checked prior to use on each working day with a NIST traceable reference in the expected range of use. Balances must be verified with weights of a class appropriate for the accuracy of the balance being calibrated (see Attachment II). When outside the limits shown in Attachment III, corrective action must be taken as described below. These limits must be listed in the balance calibration logbook. 6.4.5.1 Procedure for daily calibration verification of balances: Clean the balance and surrounding area prior to starting the daily calibration check. Check the sight level on the balance. If it needs adjusting, level the balance. Tare the balance before weighing the working weights. Use forceps or other means to lift each working weight. Do not touch the working weights with fingertips as the residue may artificially adjust the true value of the working weights. It is recommended to use some sort of weighing boat to avoid scratching the working weights on the balance pan. Record the date of the calibration verification, the working weight set identification number, the true value of the working weight, and the actual measured weight in the logbook. Repeat this procedure for the other working weights. If calibration weight measurements differ from the working weight measurements by more than specified in the balance calibration logbook, corrective action must be taken. See Attachment I for the maximum tolerances allowed (ASTM Class 1 or NBS Class S, for example). 6.4.5.2 Corrective Actions: Clean the balance and balance pan. Check the sight level on the balance and adjust if necessary. Re-tare and reweigh all the working weights. The internal calibration function (if available) of the balance may be used as a means of corrective action. Utilize the internal calibration function and diagnostics. If the above action does not correct the problem, the balance must be taken out of service and appropriately labeled to avoid improper usage. A service technician should be contacted if the balance cannot be repaired internally. Record any corrective action. Initial and date all entries in the logbook. ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 97 of 139 9 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. 6.5 Refrigerators, Freezers, Incubators, Ovens, Baths, Digestion Blocks 6.5.1 All temperature controlled storage devices used to store samples, standards, and reagents or any other temperature controlled device used in the analytical process must be managed according to the procedures outlined in this SOP. Such devices must be kept in good working order, free from dirt, chemicals or other sources of contamination. Electrical cords must not be frayed; all must incorporate a dedicated ground plug (three- prong). Three prong grounded plugs must be kept intact; the ground plug cannot be removed to accommodate a two-prong electrical socket. 6.5.2 Any temperature controlled device meeting the above criteria must be labeled and a temperature monitoring logbook or database established. Temperatures must be monitored and documented on each day of use using a calibrated thermometer controlled by the Quality office. Heat distribution in digestion blocks is monitored by rotating position of thermometer in individual wells and recording measured temperatures and well position with each use. For Micro tests, incubator temperatures must be taken and documented twice daily at least 4 hours apart. Temperature corrections must be applied and the corrected temperature evaluated against the acceptance range for the unit. If out of range, corrective action must be taken and documented. 6.6 Volumetric Dispensing Devices 6.6.1 Class A Volumetric Pipettes and Microliter Syringes 6.6.1.1 Class A volumetric pipettes require no calibration verification provided they are marked as “Class A”. If a pipette is accompanied by a certificate of traceability (or similarly named document) that links the accuracy of the pipette to an NIST traceable source, the certificate should be retained for reference. 6.6.1.2 Customer specific requirements may dictate that an initial or periodic verification is performed regardless of whether the device is “Class A” or a certificate of traceability is available. If required to do so, use the following procedure to verify the calibration: Using a properly calibrated balance, tare the weight of a small tray or weigh boat. Using a pipette bulb, pump or other controller, draw room temperature deionized water into the pipette to the mark and dispense on the tray. Record the weight and units. Repeat this procedure four more times using separate disposable pipettes. Using a calibrated thermometer, take the temperature of the de-ionized water used for calibration and document it. Look up the correction factor (e.g., Attachment IV) and document it. Calculate the average weight dispensed from the pipette. In order to be verified as Class A, the calibration must meet the specifications listed in Attachment III. 6.6.1.3 Glass microliter syringes for environmental use (with the exception of autosampler syringes) shall be deemed acceptable for use if they have accuracy and precision within ±2.0 and ±2.5%, respectively. They must be calibrated upon initial ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 98 of 139 10 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. receipt following the procedure outlined for fixed volume pipettes. If the syringe comes with a certificate attesting to established accuracy, the initial verification is not required unless specified otherwise by customer specific requirements. All documentation is stored in the Quality office. 6.6.1.4 If the syringe fails to meet acceptance criteria, repeat the verification steps. If the syringe fails to meet criteria a second time, remove it from service. The defective syringe should be discarded but may be repaired. 6.6.2 Bottle Top Dispensers: Repeating Bottle Top Dispensers used to deliver a variety of volumes must be verified for accuracy on a quarterly basis at a minimum. Those dispensers that are at a fixed volume and never adjusted need only be calibrated initially unless accompanied by documentation from the vendor certifying accuracy against an NIST traceable reference. To ensure the greatest accuracy in measurement, calibrate by weight and use the density of the liquid that is being used for calibration. Always calibrate with the solvent/liquid to be used in the dispenser. Do not assume that a dispenser calibrated using one solution will be accurate for another. This is particularly true for dispensers that use air displacement in the mechanism where there is no direct contact between plunger and liquid. 6.6.2.1 Calibration Procedure: Remove the dispenser and fill the bottle with the desired liquid, then reattach the dispenser. Set the dispenser for desired volume and prime. To prime the dispenser, first press the plunger with equal force to the stop at the bottom of the stroke. Expel the air bubbles from the pump by short, rapid strokes. Bubbles will be visible through the dispensing tip holder window. The tip should be free of bubbles. However, tiny bubbles may be ignored and should not affect the operation. Place an appropriately sized beaker on a calibrated analytical balance and tare the balance once (as additional aliquots are added below, the spreadsheet will be able to subtract the values to determine the weight). Dispense the desired aliquot of liquid into the beaker and place back on the balance. Record the weight. Collect four additional aliquots until there are five data points recorded. Calculate the average weight and the standard deviation and record. Take the temperature of the liquid in the beaker used during calibration and record the temperature on the worksheet. If calibration is being performed with a pure liquid, look up the density/temperature correlation in “The Handbook of Chemistry and Physics” or an equally reputable reference. If the density of the liquid is unknown, use the following approach to determine the density. ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 99 of 139 11 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. Using the appropriately sized Class A volumetric pipette, draw up the respective aliquot of liquid to the mark on the pipette. Dispense into the tared container on the balance. Record the mass. Calculate the density. Calculate the expected mass (wt.) using the indicated density. Record the value in the appropriate logbook. The precision and accuracy must not exceed !!2%. Repeat calibration steps if it still does not meet criteria. If it fails a second time, label as “out of service” and inform the SQM/QM. Record all data. 6.6.3 Mechanical Pipettes (adjustable and single volume): Each pipette or dispenser used for analytical measurements must be calibrated quarterly, prior to use. The macro-set (adjustable) pipettes are to be calibrated at three settings: the maximum volume, 50% of the maximum volume, and the smallest adjustable volume, which should not be less than 10% of the nominal volume. The calibration may be documented in a logbook or spreadsheet. 6.6.3.1 Calibration Procedure: Using a properly calibrated balance, tare the weight of a small tray (or equivalent device). Using the pipette, draw up a portion of room temperature distilled water and dispense it into the tared tray. Record the weight and units in the logbook or spreadsheet. Repeat this procedure four more times using the same tray and retaining each aliquot and record each weight for a total of five weights. Using a calibrated thermometer, take the temperature of the deionized water used for calibration and document it on the spreadsheet. Look up the corresponding temperature correction factor (refer to Attachment IV) and enter it into the documentation. Calculate the average weight dispensed from the pipette assuming 1mL of deionized water = 1.000g. In the absence of manufacturer specified performance criteria, the accuracy and precision must not exceed: ± 2% at the maximum volume; ± 2% at half the maximum volume; ± 2% at the minimum volume. If the pipette fails to meet these criteria, double check the tip for fit and recalibrate. Replace the tip if it fails once again. If the calibration still fails, label it as ‘out of service’ and turn the unit over to the Quality office for repair or replacement. Each pipette must be clearly labeled with the ID, date calibrated, next calibration due date, and who calibrated. ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 100 of 139 12 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. Create a label that identifies the pipette or syringe, analyst initials, and calibration date. Secure this label firmly to the pipette or syringe. 6.6.4 Pipette Use (e.g., Eppendorf, or similar air displacement device) 6.6.4.1 Plunger Stop Positions: There are three positions within the travel range of the plunger: First Stop: Used to determine the volume of liquid to be aspirated into the device; Second Stop: Used as the “blow out” stop point to ensure that all aspirated liquid is dispensed from the device; Third Stop: Used to eject the pipette tip once all measurements have been made. 6.6.4.2 Setting Volume Press the gray locking button (if available) found on the side of the device near the top and hold down. Set the volume by turning the control button. This should turn freely. If difficult to turn, consult the department supervisor as repairs may be needed. Release the locking button. The set volume is now secured against inadvertent adjustment. 6.6.4.3 Filling Attach the pipette tip securely. Press the control button down to the first stop (measuring stroke) and hold. Hold the pipette vertical and immerse the tip just below the surface of the liquid. Let the control button glide back SLOWLY and smoothly. If the control button is released too rapidly, the liquid will ‘jump-up’ into the barrel of the pipette. This can lead to contamination and / or corrosion of the plunger barrel and to inaccurate measurements. 6.6.4.4 Dispensing Hold the tip at an angle against the inside wall of the vessel. Press the control button slowly down to the first stop (measuring stroke) and wait approx. 1-3 seconds. Press the control button down to the second stop (blow-out) to empty the tip completely. Repeated “blow outs”are not necessary. If this is required to eject all liquid, the pipette is either broken and in need of service or it is an inappropriate device for the solution measured. Continue to hold the control button down. ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 101 of 139 13 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. Slide the tip out along the inside of the wall of the vessel. Let the control button glide back to the top of the stroke. Eject the tip by pressing the control button to the final stop. Never lay a pipette down with a tip on and liquid in the tip. 6.7 Non-volumetric Labware 6.7.1 Any non-volumetric labware (such as digestion tubes, digestion cups, serological pipets, autosampler vials) must be verified per lot number when the labware is used to measure either the initial sample volume or the final volume of the extract/digestate. A minimum of 5 specimens of each piece of labware must be used in the verification process. The accuracy and precision must not exceed 3% to be considered appropriate for use. The results of these verifications must be documented. This process does not need to be performed if the lab receives a certificate, per lot, stating accuracy and precision values that are equal to or better than the 3% listed above. 6.7.2 Plastic graduated cylinders must be verified in the same manner stated above (with a maximum 3% accuracy and precision required), but these verifications must only be done once prior to putting the cylinders in use. The results of these verifications must also be documented. 6.8 Data Analysis and Calculations: 6.8.1 Calculating correction factor- option 1: 6.8.1.1 Measure temperature three times using the working thermometer being verified and the certified thermometer being verified against. Average the three thermometer readings for both thermometers and apply the difference as the correction factor. 6.8.1.2 For example, certified thermometer readings (in degrees Celsius) of 2.9, 3.2, and 3.2 would produce an average temperature of 3.1°C. Working thermometer readings (in degrees Celsius) of 3.7, 4.0, and 4.0 would produce an average temperature of 3.9°C. The correction factor would therefore be -0.8°C. 6.8.2 Calculating correction factor- option 2: 6.8.2.1 Measure temperature at three different temperatures once using the working thermometer being verified. Average the three differences and apply this average as the final correction factor. 6.8.2.2 For example, certified thermometer readings (in degrees Celsius) of 0.1, 4.3, and 9.7 and working thermometer readings (in degrees Celsius) of 0.0, 4.5, and 10.1 would produce differences of +0.1, -0.2, and -0.4, respectively. The average of the three differences, and therefore the applied correction factor, would be -0.2°C. 7.0 RESPONSIBILITIES Pace ENV employees that perform any part this procedure in their work activities must have a signed Read and Acknowledgement Statement in their training file for this version of the SOP. The ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 102 of 139 14 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. employee is responsible for following the procedures in this SOP and handling temporary departures from this SOP in accordance with Pace’s policy for temporary departure. Pace supervisors/managers are responsible for training employees on the procedures in this SOP and monitoring the implementation of this SOP in their work area. 8.0 ATTACHMENTS Attachment I: Weight Class Tolerances Attachment II: Weight Class Applications Attachment III: Tolerance Limits Attachment IV: Water Density Correction Factors Attachment V: Adjustable Pipette Troubleshooting Guide 9.0 REFERENCES Pace Quality Assurance Manual- most current version National Institute of Standards and Technology website “Handbook of Environmental Analysis – 4th Edition”, Roy-Keith Smith, PhD, Genium Publishing Corp., 1999 10.0 REVISION HISTORY This Version: Section Description of Change All New laboratory procedure, consolidating several lab SOPs for support equipment into one. This document supersedes the following document(s): Document Number Title Version ENV-SOP-SHRT-001 Balance Calibration Procedure 00 ENV-SOP-SHRT-027 Pipette Delivery Check Procedure 00 ENV-SOP-SHRT-084 Thermometers and Monitoring Procedure 00 ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 103 of 139 15 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. Attachment I: Weight Class Tolerances Metric Weight ASTM Class NIST Class NBS Class All tolerances listed in mg 0 1 2 3 4 5 6 7 F S* 1kg 1.3 2.5 5.0 10 20 50 100 470 100 2.5 500g 0.60 1.2 2.5 5.0 10 30 50 300 70 1.2 300g 0.38 0.75 1.5 3.0 6.0 20 30 210 60 0.75 200g 0.25 0.50 1.0 2.0 4.0 15 20 160 40 0.50 100g 0.13 0.25 0.50 1.0 2.0 9 10 100 20 0.25 50g 0.060 0.12 0.25 0.60 1.2 5.6 7 - 10 0.12 30g 0.037 0.074 0.15 0.45 0.90 4.0 5 44 6.0 - 20g 0.037 0.074 0.10 0.35 0.70 3.0 3 33 4.0 0.074 10g 0.025 0.050 0.074 0.25 0.50 2.0 2 21 2.0 0.074 5g 0.017 0.034 0.054 0.18 0.36 1.3 2 13 1.5 0.054 3g 0.017 0.034 0.054 0.15 0.30 0.95 2 9.4 1.28 0.054 2g 0.017 0.034 0.054 0.13 0.26 0.75 2 7.0 1.12 0.054 1g 0.017 0.034 0.054 0.10 0.20 0.50 2 4.5 0.90 0.054 500mg 0.005 0.010 0.025 0.080 0.16 0.38 1 3.0 0.72 0.025 300mg 0.005 0.010 0.025 0.070 0.14 0.30 1 2.2 0.61 0.025 200mg 0.005 0.010 0.025 0.060 0.12 0.26 1 1.8 0.54 0.025 100mg 0.005 0.010 0.025 0.050 0.10 0.20 1 1.2 0.43 0.025 50mg 0.005 0.010 0.014 0.042 0.085 0.16 0.5 0.88 0.35 0.014 30mg 0.005 0.010 0.014 0.038 0.075 0.14 0.5 0.68 0.29 0.014 20mg 0.005 0.010 0.014 0.035 0.070 0.12 0.5 0.56 0.26 0.014 10mg 0.005 0.010 0.014 0.030 0.060 0.10 0.5 0.4 0.21 0.014 5mg 0.005 0.010 0.014 0.028 0.055 0.080 0.2 -0.17 0.014 3mg 0.005 0.010 0.014 0.026 0.052 0.070 0.2 -0.14 0.014 2mg 0.005 0.010 0.014 0.025 0.050 0.060 0.2 -0.12 0.014 1mg 0.005 0.010 0.014 0.025 0.050 0.050 0.1 -0.10 0.014 * - NBS CLASS S SUPERSEDED BY ASTM E617-97;SEE NOTE IN SECTION 11.3.1. VALUES PROVIDED FOR REFERENCE PURPOSES. ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 104 of 139 16 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. Attachment II: Weight Class Applications OIML IR consolidation, 1994 ASTM E 617- 1997 NBS Circ. 547, 1954 superseded 1978 NIST 105-1, 1990 Typical Use Extra-fine accuracy. E1 primary laboratory reference standards E2 0 high precision standards for calibration of weights and special precision analytical balances, accuracy classes I and II (class II, depending on precision) 1M, S Fine accuracy. F1 2 high accuracy class II balances 3 S-1 working standards for precision and analytical work, built-in weights, external weights used to calibrate moderate precision balances F2 Medium accuracy. 4P accuracy class III, industrial scales, dial scales, trip balances, platform scales also used for accuracy class III L and IIII M1 5 Q M2 6 T F M3 7 Source: National Institute of Standards and Technologies (http://ts.nist.gov/WeightsAndMeasures/caqmass.cfm) ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 105 of 139 17 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. Attachment III: Tolerance Limits BALANCE TOLERANCE LIMITS Balance Accuracy (± g) Weight 0.0001g 0.001g 0.01g 0.1g 1000g N/A N/A 10g 10g 500g N/A N/A 5g 5g 100g 1.0g 1g 1g 1g 50g 0.50g 0.5g 0.5g 0.5g 10g 0.10g 0.10g 0.1g 0.1g 1g 0.010g 0.01g 0.01g N/A 0.5g 0.005g 0.005g N/A N/A 0.1g 0.001g 0.001g N/A N/A 0.05g 0.0005g N/A N/A N/A 0.01g 0.0001g N/A N/A N/A CLASS AGLASSWARE TOLERANCE LIMITS CAPACITY (ML) BURET GRADUATED CYLINDER VOLUMETRIC FLASK VOLUMETRIC PIPET 0.5 - - - ±0.006 1 - - ±0.01 ±0.006 2 ±0.01 - ±0.15 ±0.006 3 - - - ±0.01 4 - - - ±0.01 5 ±0.01 - ±0.02 ±0.01 10 ±0.02 ±0.08 ±0.02 ±0.02 20 - - - ±0.03 25 ±0.03 ±0.14 ±0.03 ±0.03 50 ±0.05 ±0.2 ±0.05 ±0.05 100 ±0.10 ±0.35 ±0.08 ±0.08 200 - - ±0.10 - 250 - ±0.65 ±0.12 - 500 - ±1.1 ±0.20 - 1000 - ±2.0 ±0.30 - ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 106 of 139 18 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. Attachment IV: Water Density Correction Factors Temp, °C Density Correction Factor F Temp, °C Density Correction Factor F 20.0 0.99820 0.00000 22.6 0.99763 1.00057 20.1 0.99818 1.00002 22.7 0.99761 1.00059 20.2 0.99816 1.00004 22.8 0.99759 1.00061 20.3 0.99814 1.00006 22.9 0.99756 1.00064 20.4 0.99812 1.00008 23.0 0.99754 1.00066 20.5 0.99810 1.00010 23.1 0.99751 1.00069 20.6 0.99808 1.00012 23.2 0.99749 1.00071 20.7 0.99806 1.00014 23.3 0.99747 1.00073 20.8 0.99804 1.00016 23.4 0.99744 1.00076 20.9 0.99801 1.00019 23.5 0.99742 1.00078 21.0 0.99799 1.00021 23.6 0.99739 1.00081 21.1 0.99797 1.00023 23.7 0.99737 1.00083 21.2 0.99795 1.00025 23.8 0.99735 1.00085 21.3 0.99793 1.00027 23.9 0.99732 1.00088 21.4 0.99790 1.00030 24.0 0.99730 1.00090 21.5 0.99788 1.00032 24.1 0.99727 1.00093 21.6 0.99786 1.00034 24.2 0.99725 1.00095 21.7 0.99784 1.00036 24.3 0.99722 1.00098 21.8 0.99782 1.00039 24.4 0.99720 1.00100 21.9 0.99779 1.00041 24.5 0.99717 1.00103 22.0 0.99777 1.00043 24.6 0.99715 1.00105 22.1 0.99775 1.00045 24.7 0.99712 1.00108 22.2 0.99772 1.00048 24.8 0.99710 1.00110 22.3 0.99770 1.00050 24.9 0.99707 1.00113 22.4 0.99768 1.00052 25.0 0.99704 1.00116 22.5 0.99766 1.00054 ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 107 of 139 19 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment ISSUER:Pace ENV – Sheridan – SHRT COPYRIGHT © 2019 Pace Analytical Services, LLC. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. Attachment V: Adjustable Pipette Troubleshooting Guide ERROR CAUSE SOLUTION Droplets on the inside of the pipette tip Non-uniform wetting of the plastic Attach new pipette tip Pipette drips, pipetted volume too small Tip is loose Push tip on tightly Wrong pipette tip Use original Eppendorf tip Piston leaks because it is contaminated Clean piston (See Section C) Piston leaks because the piston is damaged Change piston and piston seal (see Section C) Piston leaks because the seals are damaged Change all Seals (See section C) Piston leaks because the nose cone is loose Tighten nose cone with a wrench (See section C) and change when necessary Control button jams, or moves erratically Piston contaminated Clean piston and lubricate lightly (See Section C Seals contaminated Disassemble pipette. Clean all seals and change where appropriate. (See Section C) Penetration of solvent vapors Open pipette at the central junction and ventilate. Clean piston and lubricate lightly. Pipette blocked, too little liquid is aspirated. Liquid has penetrated the nose cone and dried Unscrew pipette at the central junction, rinse the lower part first with warm water and then with distilled water and let dry. Otherwise, Disassemble pipette. Replace ejector seal in the nose cone. For 10-100μL and 50-200μL Replace the reducing tube in the nose cone Filling tube in the nose cone is blocked. ENV-SOP-SHRT-0155, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 108 of 139 1 of 9 DocumentInformation DocumentNumber: Revision: DocumentTitle: Department(s): DateInformation EffectiveDate: Notes DocumentNotes: All Dates and Times are listed in: ENV-SOP-SHRT-0038 00 Radon Flux Gas Emanation EPA 520/5-85-029 Rad Chem 29 Jan 2018 Central Time Zone ENV-SOP-SHRT-0038, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 109 of 139 2 of 9 Inter-Mountain Labs January 29, 2018 R-RadonFlux-1.1 Page 1 of 8 Standard Operating Procedures for Analysis of Radon Flux Document Title: Standard Operating Procedures for Analysis of Radon Flux Document Control Number: R-RadonFlux-1.1 Location: Inter-Mountain Laboratories, Inc., Sheridan Address:1673 Terra Avenue Sheridan, WY 82801 Written by: Tom Patten Title:Lab Manager Phone: (307) 672-8945 Quality Manager: Michelle LaGory Telephone: (307) 672-8945 Address:1673 Terra Avenue Sheridan, WY 82801 Plan Coverage: Standard Operating Procedures for Analysis of Radon Flux Lab Representative:_____________________________________________________ Lab Supervisor:_________________________________________________________ ENV-SOP-SHRT-0038, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 110 of 139 3 of 9 Inter-Mountain Labs January 29, 2018 R-RadonFlux-1.1 Page 2 of 8 Standard Operating Procedure for Analysis of Radon Flux 1.0 Test Method. 1.1 Standard Operating Procedures for Analysis of Radon Flux using EPA 520/5-85-029. 2.0 Sample Matrix. 2.1 This procedure measures the radon gas that emanates from a surface. 3.0 Detection Limits. 3.1 This procedure has been shown to be sensitive at measurements ≥ 0.5 pCi/m 2-s, but the sampling error may be orders of magnitudes larger than the measurement. Report values with a count error at 95% confidence. 4.0 Scope and Application. 4.1 This method describes the measurement of radon flux at the laboratory. This method does not attempt to describe all the procedures necessary to collect samples for a given area. 5.0 Method Summary. 5.1 A 10 inch circular sampling device filled with activated carbon is used to collect radon gas emanating from the area of the 10 inch circle covering a dry surface or ground. The sampling device collects sample for 24 hours. During the 24 hours, precipitation must not exceed 0.01 inches or the test may be void. After 24 hours, the carbon from the sampling device is removed from the sampling surface and placed in a sealed can. The sealed can is transferred to the laboratory. The laboratory will measure the activity of Bi214 with a gamma spectrometer. The radon decay is calculated and a value of radon emanation using the Bi 214 photo peak at 609 KEV is reported in pCi/m2-s. 6.0 Definitions. 6.1 Radon Flux: The amount of radon emitted in activity from a surface over a time interval usually expressed in pCi/m2-s. 6.2 Compton - The natural background gamma radiation detectable by a spectrometer. 6.3 Secular equilibrium – when the half-life of the progeny (daughter) is much shorter than the half-life of the parent; the activity of the daughter approaches the activity of the parent. After a period of time, usually assumed 10 half-lifes of the daughter, where a sample is static or controlled from separation of daughter and parent the activity of daughter is assumed to equal the activity of the parent. 6.4 Daughter product – the progeny of a parent radioisotope ENV-SOP-SHRT-0038, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 111 of 139 4 of 9 Inter-Mountain Labs January 29, 2018 R-RadonFlux-1.1 Page 3 of 8 6.5 Decay - a period of decay of product over time based on half-life. 7.0 Interferences, Considerations. 7.1 Geometries should be matched as closely as possible, for example the head-space in the cans, to eliminate variability in counting. This also includes placement of the samples within the counting chamber—centering over the detector is critical to obtain consistent data. 7.2 Attrition of carbon during sampling can cause losses. Fine particulates can be lost during carbon recovery at sampling; these fine particles also have more surface area per weight. In order to reduce losses due to attrition, follow guidance in section 14.1. Coconut Carbon has been found to have the good physical properties with respect to attrition losses. 8.0 Safety. 8.1 See SDS sheets for information on all chemicals. See the IML Safety Plan for any other safety information related to radiation. 9.0 Apparatus and Materials. 9.1 Ortec Gamma Spectrometer with germanium detector at 40% efficiency and gamma ray spectrum from 40 KeV to 1200 KeV or NaI gamma spectrometer. 9.2 Stainless steel cylindrical cans with volume of 16 ounces, with lids 9.3 Electrical tape 10.0 Reagents and Consumable Materials. 10.1 Activated carbon from coconuts >100 mesh US sieve series. 10.2 NIST traceable source that contains between 3000 and 100,000 pCi/mL of Ra226 in solution. 11.0 Sample Collection, Preservation, Handling. 11.1Collect each sample in compliance with EPA 520/5-85-029. 11.2Sample should arrive sealed in a stainless steel can of the same dimension of the standards and should be counted within 2 half life’s of Rn222 from the end of collection. 12.0 Quality Control. 12.1A batch is recommended to consist of 20 samples. 12.2Method Blank (MB) – a MB shall be created from unexposed activated carbon in the same configuration as the samples. A MB will be analyzed at the beginning and at the end of each counting day. A best practice is to use activated carbon for the MB that was prepared from the same batch of carbon as the samples. ENV-SOP-SHRT-0038, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 112 of 139 5 of 9 Inter-Mountain Labs January 29, 2018 R-RadonFlux-1.1 Page 4 of 8 12.3Two Laboratory control samples (LCS) are analyzed at the beginning and at the end of each counting day. The LCS's are standards that are of known activity and similar to samples in composition and geometry. The LCS's will be within +/- 10% of assigned value. 12.4A sample will be counted twice to represent a duplicate measurement. The duplicate measurements should have a Relative Percent Difference of 10%. 13.0 Calibration and Standardization. 13.1Compton (Background) determination – The instrument is run empty or with an empty can for at least 60 minutes or three times the sample count time. This is used as the Compton subtraction for the net count. 13.1.1 Longer runs can be used to determine average Compton for comparison with the run time Compton. 13.2Energy calibration – using the NIST traceable source, establish the energy spectral plot by counting this source long enough for the low energy gamma rays to be distinguished from the Compton. The instrument manufacturer’s default settings or manual setting can be used to set the region of interest (ROI) at 609 KEV for the Gamma Spectrometer. 13.3Efficiency calibration – this calibration is performed in the same geometry as the samples, with the prepared standard. 13.3.1 The efficiency is calculated for the 609 peak with at minimum 10,000 counts. 14.0 Procedure. 14.1 Carbon preparation - Wet tumble then wash the carbon through 140-200 mesh screen and then dry in an oven at 110 ± 10 oC for 24 Hours. After removal from oven, fill stainless steel cans, and seal with electrical tape. Keep exposure to air to a minimum during cooling and sealing cans. The cans are now ready to be sent out to sample sites for placement in sample collectors. 14.2After samples are received, they should be counted as quickly as reason allows to ensure they are counted within 2 half lifes of radon. The sooner they are counted the better. 14.3 Place sample can on spectrometer for at minimum 10 minutes. The placement of cans should match the geometry of the standards and LCS to ensure appropriate analysis. Obtain net area counts at 609 KEV. Each batch should include a blank, duplicate, and LCS. 14.4 Calculate based on comparing net area counts to a standard, see calibration section. See section on calculation and report in pCi/m 2-s.e 15.0 Calculations. 15.1Calculation A. Calculations can be performed by either A or B: ENV-SOP-SHRT-0038, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 113 of 139 6 of 9 Inter-Mountain Labs January 29, 2018 R-RadonFlux-1.1 Page 5 of 8 =! !!()!() Where: J = radon flux in pCi/m2-s C = net area counts for Bi214 at 609 Kev != radon decay constant, 0.000002097/s (2.097 E-6/s) A = area of collection in m2 E = efficiency of detector; where counts/second divided by K and E converts to pCi K = 0.037 d/s/pCi t1 = sampling/exposure time, s t2 = time from start of sample collection to start of counting, s t3 = time from start of sample collection to end of counting, s 15.2Calculation B. Calculations can be performed by either A or B: = Where: J = radon flux in pCi/m2-s P = Decay corrected value in pCi/Can A = area of collection in m2 t1 = sampling/exposure time, s = . Where: P = Decay corrected value in pCi/Can H = Measured value in pCi/Can t4 = time from midpoint of sample collection to midpoint of counting, days d = decay factor of 3.825 days =/ Where: H = Measured value in pCi/Can t5 = counting time E = efficiency of detector; where counts/second divided by K and E converts to pCi K = 0.037 d/s/pCi ENV-SOP-SHRT-0038, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 114 of 139 7 of 9 Inter-Mountain Labs January 29, 2018 R-RadonFlux-1.1 Page 6 of 8 16.0 Precision and Accuracy. 16.1Relative percent difference, RPD RPD = 2 )BA( )BA( ∀ #x 100 Where: A = Net activity of the first measurement B = Net activity of the second measurement 16.2 Replicate error ratio, RER RER = 2 b 2 a ss BA ∀ # Where: A = Net activity of the first measurement B = Net activity of the second measurement sa = The uncertainty of the first measurement sb = The uncertainty of the second measurement 17.0 Pollution Prevention 17.1This procedure by definition is used on radioactive materials. All use of these materials is minimized as much as possible, for safety and waste containment. 17.2Sample disposal is conducted per IML Sample Disposal Procedure and IML Safety Plan. 18.0 Data Assessment and Acceptance Criteria. 18.1MB 18.1.1 The MB results should be below the RL or minimum detectable amount (MDA). 18.2 LCS 18.2.1 The criteria can be developed with control charts using 3 sigma, or have a recovery of ± 20 percent of the true value. 18.3DUP 18.3.1 The relative percent difference (RPD) should be ≤ 20 percent. ENV-SOP-SHRT-0038, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 115 of 139 8 of 9 Inter-Mountain Labs January 29, 2018 R-RadonFlux-1.1 Page 7 of 8 18.3.1.1 If a duplicate is greater than the 20 percent window and less than 5 times the method (RL), the duplicate may be evaluated using the replicate error ratio (RER). If the value is less than 2, the duplicate data is considered acceptable. 19.0 Contingencies and Corrective Action for Out of Control or Unacceptable Data. 19.1If MB is above the RL, MB is recounted or reported with an appropriate qualifier. 19.2If the LCS does not meet acceptance criteria, recount LCS and determine if the entire batch needs to be recounted. 19.3If the Duplicate does not meet acceptance criteria, the duplicate may be recounted or flagged in the report. 20.0 Waste Management. 20.1The Radiochemistry Lab follows the policies and procedures in the Inter-Mountain Labs Sample Disposal Procedure and Safety Plan, and also adheres to the requirements inherent within the licensing requirements of the Nuclear Regulatory Commission (NRC). 21.0 References. 21.1USEPA. January 1986. EPA-520/5-85-029. Radon Flux Measurements on Gardinier and Royster Phosphogypsum Piles Near Tampa and Mulberry, Florida; Prepared for US EPA, Eastern Environmental Radiation Facility, Montgomery Alabama. 21.2USEPA. August 2017. Method 115. Monitoring for Radon-222 Emissions. 22.0 Tables, Diagrams, Comments. ENV-SOP-SHRT-0038, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 116 of 139 9 of 9 Inter-Mountain Labs January 29, 2018 R-RadonFlux-1.1 Page 8 of 8 ATTACHMENT #1 STANDARD OPERATING PROCEDURE METHOD TRAINING RECORD Document Title:Standard Operating Procedures for Analysis of Radon Flux Document Control Number:R-RadonFlux-1.1 Location:Inter-Mountain Laboratories, Inc. I have read the preceding document and understand all sections. I have been trained in the performance of the methods and any recent revisions to this procedure. ANALYST SIGNATURE DATE TRAINER ____________________ _____________________ ________ _________________ ____________________ _____________________ ________ _________________ ____________________ _____________________ ________ _________________ ____________________ _____________________ ________ _________________ ____________________ _____________________ ________ _________________ ____________________ _____________________ ________ _________________ ____________________ _____________________ ________ _________________ ____________________ _____________________ ________ _________________ ____________________ _____________________ ________ _________________ ____________________ _____________________ ________ _________________ ____________________ _____________________ ________ _________________ ____________________ _____________________ ________ _________________ ____________________ _____________________ ________ _________________ ___________________ _____________________ ________ _________________ ENV-SOP-SHRT-0038, Rev 00 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 117 of 139 ANFIELD RESOURCES HOLDING CORP. MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS) STANDARD OPERATING PROCEDURE EP-10 SHOOTARING MILL SITE Revision No. 2 11/20/2021 1 MONITORING RADON-222 EMISSIONS aka RADON FLUX MEASUREMENT USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCs) STANDARD OPERATING PROCEDURE EP-10 Prepared by R and D Enterprises, Inc. P.O. Box 3321 Casper, WY 82602 For Anfield Resources Holding Corp. November 20, 2021 Revision 2 Approved by: Sheryl A. Garling Date: 11-20-2021 Contract Corporate Radiation Safety Officer Approved by: _________________________________________ Date: _________________ Mill Manager or Designee Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 118 of 139 ANFIELD RESOURCES HOLDING CORP. MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS) STANDARD OPERATING PROCEDURE EP-10 SHOOTARING MILL SITE Revision No. 2 11/20/2021 2 REVISION HISTORY Date Version Description Author January 1, 2017 0 Initial Draft Roger A. Garling/S.A. Garling February 28, 2021 1 Name Rev S.A. Garling November 20, 2021 2 Forms & EPA Method115 Added S.A. Garling Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 119 of 139 ANFIELD RESOURCES HOLDING CORP. MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS) STANDARD OPERATING PROCEDURE EP-10 SHOOTARING MILL SITE Revision No. 2 11/20/2021 3 CONTENTS 1 ACRONYMS, ABBREVIATIONS, AND INITIALS ................................................................... 4 2 PURPOSE ..................................................................................................................... 5 3 DEFINITIONS ................................................................................................................. 5 4 APPLICABILITY ............................................................................................................. 5 5 DISCUSSION ................................................................................................................. 5 6 RESPONSIBILITY ........................................................................................................... 7 7 EQUIPMENT AND MATERIALS ......................................................................................... 7 8 PROCEDURE ................................................................................................................. 7 9 QUALITY ASSURANCE ................................................................................................... 7 10 RECORDS & REPORTING ............................................................................................... 8 11 REFERENCES................................................................................................................ 9 12 APPENDIX A ............................................................................................................... 10 • Reference 1 Appendix A, Procedure for Making Radon Flux Measurements Using Large Area Activated Charcoal Canister (LAACC) with Diagrams • Field Forms Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 120 of 139 ANFIELD RESOURCES HOLDING CORP. MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS) STANDARD OPERATING PROCEDURE EP-10 SHOOTARING MILL SITE Revision No. 2 11/20/2021 4 1 ACRONYMS, ABBREVIATIONS, AND INITIALS CRSO Corporate Radiation Safety Officer LAACC Large Area Charcoal Canister m Meter pCi Picocurie sec Second Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 121 of 139 ANFIELD RESOURCES HOLDING CORP. MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS) STANDARD OPERATING PROCEDURE EP-10 SHOOTARING MILL SITE Revision No. 2 11/20/2021 5 STANDARD OPERATING PROCEDURE EP-10 MONITORING RADON-222 EMISSIONS 2 PURPOSE This Standard Operating Procedure (SOP) describes the monitoring methods which must be used in determining the radon-222 emissions from underground uranium mines, uranium mill tailings piles, phosphogypsum stacks, and other piles of waste material emitting radon. 3 DEFINITIONS Refer to references. 4 APPLICABILITY Measurement and Calculation of Radon Flux from Uranium Mill Tailings Piles 5 DISCUSSION Frequency of Flux Measurement A single set of radon flux measurements may be made, or if the owner or operator chooses, more frequent measurements may be made over a one-year period. These measurements may involve quarterly, monthly, or weekly intervals. All radon measurements shall be made as described in paragraphs 2.1.2 through 2.1.6 except that for measurements made over a one-year period, the requirement of paragraph 2.1.4(c) shall not apply. The mean radon flux from the pile shall be the arithmetic mean of the mean radon flux for each measurement period. The weather conditions, moisture content of the tailings and area of the pile covered by water existing at the time of the measurement shall be chosen so as to provide measurements representative of the long-term radon flux from the pile and shall be subject to EPA review and approval. DISTRIBUTION OF FLUX MEASUREMENTS The distribution and number of radon flux measurements required on a pile will depend on clearly defined areas of the pile (called regions) that can have significantly different radon fluxes due to surface conditions. The mean radon flux shall be determined for each individual region of the pile. Regions that shall be considered for operating mill tailings piles are: (a) Water covered areas, (b) Water saturated areas (beaches), (c) Dry top surface areas, and (d) Sides, except where earthen material is used in dam construction. For mill tailings after disposal the pile shall be considered to consist of only one region. NUMBER OF FLUX MEASUREMENTS Radon flux measurements shall be made within each region on the pile, except for those areas covered with water. Measurements shall be made at regularly spaced locations across the surface of the region, realizing that surface roughness will prohibit measurements in some areas of a region. The minimum number of flux measurements considered necessary to determine a representative mean radon flux value for each type of region on an operating pile is: Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 122 of 139 ANFIELD RESOURCES HOLDING CORP. MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS) STANDARD OPERATING PROCEDURE EP-10 SHOOTARING MILL SITE Revision No. 2 11/20/2021 6 (a) Water covered area—no measurements required as radon flux is assumed to be zero, (b) Water saturated beaches—100 radon flux measurements, (c) Loose and dry top surface—100 radon flux measurements, (d) Sides—100 radon flux measurements, except where earthen material is used in dam construction. For a mill tailings pile after disposal which consists of only one region a minimum of 100 measurements are required. RESTRICTIONS TO RADON FLUX MEASUREMENTS The following restrictions are placed on making radon flux measurements: (a) Measurements shall not be initiated within 24 hours of a rainfall. (b) If a rainfall occurs during the 24-hour measurements period, the measurement is invalid if the seal around the lip of the collector has washed away or if the collector is surrounded by water. (c) Measurements shall not be performed if the ambient temperature is below 35 °F or if the ground is frozen. 2.1.5 Areas of Pile Regions. The approximate area of each region of the pile shall be determined in units of square meters. RADON FLUX MEASUREMENT Measuring radon flux involves the adsorption of radon on activated charcoal in a large-area collector. The radon collector is placed on the surface of the pile area to be measured and allowed to collect radon for a time period of 24 hours. The radon collected on the charcoal is measured by gamma-ray spectroscopy. The detailed measurement procedure provided in Appendix A of EPA 520/5-85-0029(1), and is included in Appendix A of this SOP, shall be used to measure the radon flux on uranium mill tailings, except the surface of the tailings shall not be penetrated by the lip of the radon collector as directed in the procedure, rather the collector shall be carefully positioned on a flat surface with soil or tailings used to seal the edge. CALCULATIONS The mean radon flux for each region of the pile and for the total pile shall be calculated and reported as follows: (a) The individual radon flux calculations shall be made as provided in appendix A EPA 86 (1). The mean radon flux for each region of the pile shall be calculated by summing all individual flux measurements for the region and dividing by the total number of flux measurements for the region. (b) The mean radon flux for the total uranium mill tailings pile shall be calculated as follows. Js = J1A1+…J2A2…JiAi At Where: Js = Mean flux for the total pile (pCi/m2-s) Ji = Mean flux measured in region i (pCi/m2-s) Ai = Area of region i (m2) At = Total area of the pile (m2) REPORTING The results of individual flux measurements, the approximate locations on the pile, and the mean radon flux for each region and the mean radon flux for the total stack shall be included in the emission test report. Any condition or unusual event that occurred during the measurements that could significantly affect the results should be reported. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 123 of 139 ANFIELD RESOURCES HOLDING CORP. MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS) STANDARD OPERATING PROCEDURE EP-10 SHOOTARING MILL SITE Revision No. 2 11/20/2021 7 6 RESPONSIBILITY The Corporate Radiation Safety Officer (CRSO) or his/her designee is responsible for implementing and following this procedure. 7 EQUIPMENT AND MATERIALS Sufficient Large Area Activated Charcoal Canister (LAACC) collectors as described in Reference 1. Sufficient canisters containing ~180 grams of activated carbon that has been decayed and or baked to remove any residual radon adsorbed onto the activated carbon. Minimum/Maximum outdoor thermometer Rain gauge Shovel Field forms, pens, watch and camera 8 PROCEDURE SAMPLING PROCEDURES Records of field activities and laboratory measurements shall be maintained. A Field Form is located in Appendix A and the following information shall be recorded for each charcoal canister measurement: (a) Site Name and Air Quality ID # (b) Name of pile (c) Sample location (d) Sample ID number (e) Date and time on (f) Date and time off (g) Observations of meteorological conditions and comments Records shall include all applicable information associated with determining the sample measurement, calculations, observations, and comments. 9 QUALITY ASSURANCE SAMPLING PROCEDURES Records of field activities and laboratory measurements shall be maintained. The following information shall be recorded for each charcoal canister measurement: (a) Site and Air Quality ID # (b) Name of pile (c) Sample location (d) Sample ID number (e) Date and time on (f) Date and time off (g) Observations of meteorological conditions and comments Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 124 of 139 ANFIELD RESOURCES HOLDING CORP. MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS) STANDARD OPERATING PROCEDURE EP-10 SHOOTARING MILL SITE Revision No. 2 11/20/2021 8 Records shall include all applicable information associated with determining the sample measurement, calculations, observations, and comments. SAMPLE CUSTODY Custodial control of all charcoal samples exposed in the field shall be maintained in accordance with EPA chain- of-custody field procedures. A control record shall document all custody changes that occur between the field and laboratory personnel. COMMERCIAL ANALYTICAL LABORATORY A third party commercial analytical laboratory or equivalent will be used to analyze the exposed charcoal. The third-party laboratory will follow their analytical SOPs for radon-222/gamma spectroscopy for exposed charcoal and comply with their commercial laboratory certifications predicated by EPA, NELAC or other certification authority. INTERNAL QUALITY CONTROL CHECKS AND FREQUENCY The charcoal from every tenth exposed canister shall be recounted. Five percent of the samples analyzed shall be either blanks (charcoal having no radioactivity added) or samples spiked with known quantities of radium- 226. DATA PRECISION, ACCURACY, AND COMPLETENESS The precision, accuracy, and completeness of measurements and analyses shall be within the following limits for samples measuring greater than 1.0 pCi/m2−s. (a) Precision: 10% (b) Accuracy: ±10% (c) Completeness: at least 85% of the measurements must yield useable results. 10 RECORDS & REPORTING Radon-222 Emissions Measurement Field Form are located in Appendix A 40 CFR PART §61.250 DESIGNATION OF FACILITIES The provisions of this subpart apply to owners or operators of facilities licensed to manage uranium byproduct materials during and following the processing of uranium ores, commonly referred to as uranium mills and their associated tailings. This subpart does not apply to the disposal of tailings. 40 CFR PART §61.253 DETERMINING COMPLIANCE Compliance with the emission standard in this subpart shall be determined annually through the use of Method 115 of appendix B. When measurements are to be made over a one-year period, EPA shall be provided with a schedule of the measurement frequency to be used. The schedule may be submitted to EPA prior to or after the first measurement period. EPA shall be notified 30 days prior to any emissions test so that EPA may, at its option, observe the test. 40 CFR PART §61.254 ANNUAL REPORTING REQUIREMENTS (a) The owners or operators of operating existing mill impoundments shall report the results of the compliance calculations required in § 61.253 and the input parameters used in making the calculation for each calendar year shall be sent to EPA by March 31 of the following year. Each report shall also include the following information: (1) The name and location of the mill. (2) The name of the person responsible for the operation of the facility and the name of the person preparing the report (if different). (3) The results of the testing conducted, including the results of each measurement. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 125 of 139 ANFIELD RESOURCES HOLDING CORP. MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS) STANDARD OPERATING PROCEDURE EP-10 SHOOTARING MILL SITE Revision No. 2 11/20/2021 9 (4) Each report shall be signed and dated by a corporate officer in charge of the facility and contain the following declaration immediately above the signature line: I certify under penalty of law that I have personally examined and am familiar with the information submitted herein and based on my inquiry of those individuals immediately responsible for obtaining the information, I believe that the submitted information is true, accurate and complete. I am aware that there are significant penalties for submitting false information including the possibility of fine and imprisonment. See, 18 U.S.C. 1001. (b) If the facility is not in compliance with the emission limits of § 61.252 in the calendar year covered by the report, then the facility must commence reporting to the Administrator on a monthly basis the information listed in paragraph (a) of this section, for the preceding month. These reports will start the month immediately following the submittal of the annual report for the year in noncompliance and will be due 30 days following the end of each month. This increased level of reporting will continue until the Administrator has determined that the monthly reports are no longer necessary. In addition to all the information required in paragraph (a) of this section, monthly reports shall also include the following information: (1) All controls or other changes in operation of the facility that will be or are being installed to bring the facility into compliance. (2) If the facility is under a judicial or administrative enforcement decree, the report will describe the facilities performance under the terms of the decree. (c) The first report will cover the emissions of calendar year 1990. 40 CFR PART §61.255 RECORDKEEPING REQUIREMENTS The owner or operator of the mill must maintain records documenting the source of input parameters including the results of all measurements upon which they are based, the calculations and/or analytical methods used to derive values for input parameters, and the procedure used to determine compliance. In addition, the documentation should be sufficient to allow an independent auditor to verify the accuracy of the determination made concerning the facility’s compliance with the standard. These records must be kept at the mill for at least five years and upon request be made available for inspection by the Administrator, or his authorized representative. 11 REFERENCES (1) Hartley, J.N. and Freeman, H.D., “Radon Flux Measurements on Gardinier and Royster phosphogypsum Piles Near Tampa and Mulberry, Florida,” U.S. Environmental Protection Agency Report, EPA 520/5-85-029, NTIS #PB86-161874, January 1986. (2) Environmental Protection Agency, “Indoor Radon and Radon Decay Product Measurement Protocols,” EPA 520/1-89-009, U.S. Environmental Protection Agency, Washington, DC. (1989). (3) U. S. Environmental Protection Agency, 40 Code of Federal Regulations (CFR), Part 61, Environmental Protection Agency, National Emission Standards for Hazardous Air Pollutants (NESHAPs): Radionuclides: Final Rule and Notice of Reconsideration, December 15, 1989. Subpart W was updated April 2017. (4) U. S. Nuclear Regulatory Commission, Radiological Effluent and Environmental Monitoring at Uranium Mills, Regulatory Guide 4.14, April 1980. (5) U. S. Nuclear Regulatory Commission, Title 10, Code of Federal Regulations (CFR), Part 40, Appendix A to Part 40—Criteria Relating to the Operation of Uranium Mills and the Disposition of Tailings or Wastes Produced by the Extraction or Concentration of Source Material From Ores Processed Primarily for Their Source Material Content, August 2017. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 126 of 139 ANFIELD RESOURCES HOLDING CORP. MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS) STANDARD OPERATING PROCEDURE EP-10 SHOOTARING MILL SITE Revision No. 2 11/20/2021 10 12 APPENDIX A DIAGRAMS, FORMS & EPA METHOD 115 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 127 of 139 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 128 of 139 PAGE_____ OF _____ RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE CLIENT: ANFIELD RESOURCES HOLDING CORP LOCATION/TAILS CELL ID: SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169 WEATHER CONDITION: PRECIP 24 HOUR Prior AND DAY OF: MIN TEMP: MM/DD/YY XX/XX/XXXX MM/DD/YY XX/XX/XXXX MM/DD/YY LAACC UNIT # CHARCOAL CAN # TAILS LOCATION ID/COORD 24 HR TIME DEPLOY/SET 24 HR TIME RETRIEVE SITE FIELD STAFF INITIALS LAB SAMPLE ID# 24 HR TIME START COUNT COUNT MINUTES GROSS COUNTS COMMENTS Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 129 of 139 Method 115 8/4/2017 1 While we have taken steps to ensure the accuracy of this Internet version of the document, it is not the official version. To see a complete version including any recent edits, visit: https://www.ecfr.gov/cgi-bin/ECFR?page=browse and search under Title 40, Protection of Environment. METHOD 115—MONITORING FOR RADON-222 EMISSIONS This appendix describes the monitoring methods which must be used in determining the radon- 222 emissions from underground uranium mines, uranium mill tailings piles, phosphogypsum stacks, and other piles of waste material emitting radon. 1. Radon-222 Emissions from Underground Uranium Mine Vents 1.1 Sampling Frequency and Calculation of Emissions. Radon-222 emissions from underground uranium mine vents shall be determined using one of the following methods: 1.1.1 Continuous Measurement. These measurements shall be made and the emissions calculated as follows: (a) The radon-222 concentration shall be continuously measured at each mine vent whenever the mine ventilation system is operational. (b) Each mine vent exhaust flow rate shall be measured at least 4 times per year. (c) A weekly radon-222 emission rate for the mine shall be calculated and recorded weekly as follows: Aw= C1Q1T1 + C2Q2T2 + . . . CiQiTi Where: Aw = Total radon-222 emitted from the mine during week (Ci) Ci = Average radon-222 concentration in mine vent i(Ci/m3) Qi = Volumetric flow rate from mine vent i(m3/hr) Ti = Hours of mine ventilation system operation during week for mine vent i(hr) (d) The annual radon-222 emission rate is the sum of the weekly emission rates during a calendar year. 1.1.2 Periodic Measurement. This method is applicable only to mines that continuously operate their ventilation system except for extended shutdowns. Mines which start up and shut down their ventilation system frequently must use the continuous measurement method describe in Section 1.1.1 above. Emission rates determined using periodic measurements shall be measured and calculated as follows: Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 130 of 139 Method 115 8/4/2017 2 (a) The radon-222 shall be continuously measured at each mine vent for at least one week every three months. (b) Each mine vent exhaust flow rate shall be measured at least once during each of the radon- 222 measurement periods. (c) A weekly radon-222 emission rate shall be calculated for each weekly period according to the method described in Section 1.1.1. In this calculation T = 168 hr. (d) The annual radon-222 emission rate from the mine should be calculated as follows: 𝐴𝑦=52 −𝑊𝑠 𝑛(𝐴𝑤𝑖+𝐴𝑤2 +⋯𝐴𝑤𝑖) Where: Ay = Annual radon-222 emission rate from the mine (Ci) Awi = Weekly radon-222 emission rate during the measurement period i (Ci) n = Number of weekly measurement periods per year Ws = Number of weeks during the year that the mine ventilation system is shut down in excess of 7 consecutive days, i.e. the sum of the number of weeks each shut down exceeds 7 days 1.2 Test Methods and Procedures Each underground mine required to test its emissions, unless an equivalent or alternative method has been approved by the Administrator, shall use the following test methods: 1.2.1 Test Method 1 of appendix A to part 60 shall be used to determine velocity traverses. The sampling point in the duct shall be either the centroid of the cross section or the point of average velocity. 1.2.2 Test Method 2 of appendix A to part 60 shall be used to determine velocity and volumetric flow rates. 1.2.3 Test Methods A-6 or A-7 of appendix B, Method 114 to part 61 shall be used for the analysis of radon-222. Use of Method A-7 requires prior approval of EPA based on conditions described in appendix B. 1.2.4 A quality assurance program shall be conducted in conformance with the programs described for Continuous Radon Monitors and Alpha Track Detectors in EPA 520/1-89-009. (2) 2. Radon-222 Emissions from Uranium Mill Tailings Piles 2.1 Measurement and Calculation of Radon Flux from Uranium Mill Tailings Piles. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 131 of 139 Method 115 8/4/2017 3 2.1.1 Frequency of Flux Measurement. A single set of radon flux measurements may be made, or if the owner or operator chooses, more frequent measurements may be made over a one year period. These measurements may involve quarterly, monthly or weekly intervals. All radon measurements shall be made as described in paragraphs 2.1.2 through 2.1.6 except that for measurements made over a one year period, the requirement of paragraph 2.1.4(c) shall not apply. The mean radon flux from the pile shall be the arithmetic mean of the mean radon flux for each measurement period. The weather conditions, moisture content of the tailings and area of the pile covered by water existing at the time of the measurement shall be chosen so as to provide measurements representative of the long term radon flux from the pile and shall be subject to EPA review and approval. 2.1.2 Distribution of Flux Measurements. The distribution and number of radon flux measurements required on a pile will depend on clearly defined areas of the pile (called regions) that can have significantly different radon fluxes due to surface conditions. The mean radon flux shall be determined for each individual region of the pile. Regions that shall be considered for operating mill tailings piles are: (a) Water covered areas, (b) Water saturated areas (beaches), (c) Dry top surface areas, and (d) Sides, except where earthen material is used in dam construction. For mill tailings after disposal the pile shall be considered to consist of only one region. 2.1.3 Number of Flux Measurements. Radon flux measurements shall be made within each region on the pile, except for those areas covered with water. Measurements shall be made at regularly spaced locations across the surface of the region, realizing that surface roughness will prohibit measurements in some areas of a region. The minimum number of flux measurements considered necessary to determine a representative mean radon flux value for each type of region on an operating pile is: (a) Water covered area—no measurements required as radon flux is assumed to be zero, (b) Water saturated beaches—100 radon flux measurements, (c) Loose and dry top surface—100 radon flux measurements, (d) Sides—100 radon flux measurements, except where earthern material is used in dam construction. For a mill tailings pile after disposal which consists of only one region a minimum of 100 measurements are required. 2.1.4 Restrictions to Radon Flux Measurements. The following restrictions are placed on making radon flux measurements: Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 132 of 139 Method 115 8/4/2017 4 (a) Measurements shall not be initiated within 24 hours of a rainfall. (b) If a rainfall occurs during the 24 hour measurements period, the measurement is invalid if the seal around the lip of the collector has washed away or if the collector is surrounded by water. (c) Measurements shall not be performed if the ambient temperature is below 35 °F or if the ground is frozen. 2.1.5 Areas of Pile Regions. The approximate area of each region of the pile shall be determined in units of square meters. 2.1.6 Radon Flux Measurement. Measuring radon flux involves the adsorption of radon on activated charcoal in a large-area collector. The radon collector is placed on the surface of the pile area to be measured and allowed to collect radon for a time period of 24 hours. The radon collected on the charcoal is measured by gamma-ray spectroscopy. The detailed measurement procedure provided in appendix A of EPA 520/5-85-0029(1) shall be used to measure the radon flux on uranium mill tailings, except the surface of the tailings shall not be penetrated by the lip of the radon collector as directed in the procedure, rather the collector shall be carefully positioned on a flat surface with soil or tailings used to seal the edge. 2.1.7 Calculations. The mean radon flux for each region of the pile and for the total pile shall be calculated and reported as follows: (a) The individual radon flux calculations shall be made as provided in appendix A EPA 86 (1). The mean radon flux for each region of the pile shall be calculated by summing all individual flux measurements for the region and dividing by the total number of flux measurements for the region. (b) The mean radon flux for the total uranium mill tailings pile shall be calculated as follows. 𝐽𝑠=𝐽1𝐴1 +⋯ 𝐽2𝐴2 ⋯𝐽𝑖𝐴𝑖 𝐴𝑠 Where: Js = Mean flux for the total pile (pCi/m2-s) Ji = Mean flux measured in region i (pCi/m2-s) Ai = Area of region i (m2) At = Total area of the pile (m2) 2.1.8 Reporting. The results of individual flux measurements, the approximate locations on the pile, and the mean radon flux for each region and the mean radon flux for the total stack shall be included in the emission test report. Any condition or unusual event that occurred during the measurements that could significantly affect the results should be reported. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 133 of 139 Method 115 8/4/2017 5 3.0 Radon-222 Emissions from Phosphogypsum Stacks. 3.1 Measurement and Calculation of the Mean Radon Flux. Radon flux measurements shall be made on phosphogypsum stacks as described below: 3.1.1 Frequency of Measurements. A single set of radon flux measurements may be made after the phosphogypsum stack becomes inactive, or if the owner or operator chooses, more frequent measurements may be made over a one year period. These measurements may involve quarterly, monthly or weekly intervals. All radon measurements shall be made as described in paragraphs 3.1.2 through 3.1.6 except that for measurements made over a one year period, the requirement of paragraph 3.1.4(c) shall not apply. For measurements made over a one year period, the radon flux shall be the arithmetic mean of the mean radon flux for each measurement period. 3.1.2 Distribution and Number of Flux Measurements. The distribution and number of radon flux measurements required on a stack will depend on clearly defined areas of the stack (called regions) that can have significantly different radon fluxes due to surface conditions. The mean radon flux shall be determined for each individual region of the stack. Regions that shall be considered are: (a) Water covered areas, (b) Water saturated areas (beaches), (c) Loose and dry top surface areas, (d) Hard-packed roadways, and (e) Sides. 3.1.3 Number of Flux Measurements. Radon flux measurements shall be made within each region on the phosphogypsum stack, except for those areas covered with water. Measurements shall be made at regularly spaced locations across the surface of the region, realizing that surface roughness will prohibit measurements in some areas of a region. The minimum number of flux measurements considered necessary to determine a representative mean radon flux value for each type of region is: (a) Water covered area—no measurements required as radon flux is assumed to be zero, (b) Water saturated beaches—50 radon flux measurements, (c) Loose and dry top surface—100 radon flux measurements, (d) Hard-packed roadways—50 radon flux measurements, and (e) Sides—100 radon flux measurements. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 134 of 139 Method 115 8/4/2017 6 A minimum of 300 measurements are required. A stack that has no water cover can be considered to consist of two regions, top and sides, and will require a minimum of only 200 measurements. 3.1.4 Restrictions to Radon Flux Measurements. The following restrictions are placed on making radon flux measurements: (a) Measurements shall not be initiated within 24 hours of a rainfall. (b) If a rainfall occurs during the 24 hour measurement period, the measurement is invalid if the seal around the lip of the collector has washed away or if the collector is surrounded by water. (c) Measurements shall not be performed if the ambient temperature is below 35 °F or if the ground is frozen. 3.1.5 Areas of Stack Regions. The approximate area of each region of the stack shall be determined in units of square meters. 3.1.6 Radon Flux Measurements. Measuring radon flux involves the adsorption of radon on activated charcoal in a large-area collector. The radon collector is placed on the surface of the stack area to be measured and allowed to collect radon for a time period of 24 hours. The radon collected on the charcoal is measured by gamma-ray spectroscopy. The detailed measurement procedure provided in appendix A of EPA 520/5-85-0029(1) shall be used to measure the radon flux on phosphogypsum stacks, except the surface of the phosphogypsum shall not be penetrated by the lip of the radon collector as directed in the procedure, rather the collector shall be carefully positioned on a flat surface with soil or phosphogypsum used to seal the edge. 3.1.7 Calculations. The mean radon flux for each region of the phosphogypsum stack and for the total stack shall be calculated and reported as follows: (a) The individual radon flux calculations shall be made as provided in appendix A EPA 86 (1). The mean radon flux for each region of the stack shall be calculated by summing all individual flux measurements for the region and dividing by the total number of flux measurements for the region. (b) The mean radon flux for the total phosphogypsum stack shall be calculated as follows. 𝐽𝑠=𝐽1𝐴1 + 𝐽2𝐴2 +⋯𝐽𝑖𝐴𝑖 𝐴𝑠 Where: Js = Mean flux for the total stack (pCi/m2-s) Ji = Mean flux measured in region i (pCi/m2-s) Ai = Area of region i (m2) Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 135 of 139 Method 115 8/4/2017 7 At = Total area of the stack 3.1.8 Reporting. The results of individual flux measurements, the approximate locations on the stack, and the mean radon flux for each region and the mean radon flux for the total stack shall be included in the emission test report. Any condition or unusual event that occurred during the measurements that could significantly affect the results should be reported. 4.0 Quality Assurance Procedures for Measuring Rn-222 Flux A. SAMPLING PROCEDURES Records of field activities and laboratory measurements shall be maintained. The following information shall be recorded for each charcoal canister measurement: (a) Site (b) Name of pile (c) Sample location (d) Sample ID number (e) Date and time on (f) Date and time off (g) Observations of meteorological conditions and comments Records shall include all applicable information associated with determining the sample measurement, calculations, observations, and comments. B. SAMPLE CUSTODY Custodial control of all charcoal samples exposed in the field shall be maintained in accordance with EPA chain-of-custody field procedures. A control record shall document all custody changes that occur between the field and laboratory personnel. C. CALIBRATION PROCEDURES AND FREQUENCY The radioactivity of two standard charcoal sources, each containing a carefully determined quantity of radium-226 uniformly distributed through 180g of activated charcoal, shall be measured. An efficiency factor is computed by dividing the average measured radioactivity of the two standard charcoal sources, minus the background, in cpm by the known radioactivity of the charcoal sources in dpm. The same two standard charcoal sources shall be counted at the beginning and at the end of each day's counting as a check of the radioactivity counting equipment. A background count using unexposed charcoal should also be made at the beginning and at the end of each counting day to check for inadvertent contamination of the detector or Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 136 of 139 Method 115 8/4/2017 8 other changes affecting the background. The unexposed charcoal comprising the blank is changed with each new batch of charcoal used. D. INTERNAL QUALITY CONTROL CHECKS AND FREQUENCY The charcoal from every tenth exposed canister shall be recounted. Five percent of the samples analyzed shall be either blanks (charcoal having no radioactivity added) or samples spiked with known quantities of radium-226. E. DATA PRECISION, ACCURACY, AND COMPLETENESS The precision, accuracy, and completeness of measurements and analyses shall be within the following limits for samples measuring greater than 1.0 pCi/m2−s. (a) Precision: 10% (b) Accuracy: ±10% (c) Completeness: at least 85% of the measurements must yield useable results. 5.0 REFERENCES (1) Hartley, J.N. and Freeman, H.D., “Radon Flux Measurements on Gardinier and Royster phosphogypsum Piles Near Tampa and Mulberry, Florida,” U.S. Environmental Protection Agency Report, EPA 520/5-85-029, January 1986. (2) Environmental Protection Agency, “Indoor Radon and Radon Decay Product Measurement Protocols”, EPA 520/1-89-009, U.S. Environmental Protection Agency, Washington, DC. (1989). Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 137 of 139 APPENDIX D PHOTOGRAPHS 䅮晩敬搠剥獯畲捥猠䡯汤楮朠䍯牰⸠ⴠ卨潯瑡物湧⁃慮祯渠䵩汬‭⁓楴攠ㄴㄶ㤠ⴠ㈰㈴⁒慤潮⁆汵砠䵥慳畲敭敮琠剥灯牴 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement ReportNovember 15, 2024 - Page 139 of 139