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Home My WebLink AboutDAQ-2024-012087SnooraRrruc Glttvor Unarutum Mul-UT AIn QuRurY lD 14169 Naroul Enrssrou SrnroeRDs FoR HlznnoousAtR Pot-lumHts (NESHAPS) 2024 RaooN Fr-ux MeasuRemeNr PnocRlm Rnoroacrrve Mnrenrals LrcENsE UT0900480 REVIEWED ^A+ c,,rrlrlarrcr ,r.,r,," /h')il4q| K(/-/l i , rtltq c/'D I AH Rc ANFIELD RESOT]RCES HOLDING COFtP November 15,2024 NeroruRl Erutsstoru STaTDARDS FOR Hnzenoous Arn PouLUrANrs (NESHAPS) 2024 Rnoou Flux MeRSUREMENT Pnocneut UTArn Quelmr lD 14169 Axrrrlo Resounces HolDtNG Conp. SxooreRNG Ceuvott Mtt-t- Trcneoo, UIAH 84533 NoveMeen 15,2024 1 I (-,, PRepRReo roR: Arurrrlo RrsouRces Holotttc Conp. SHoorRruNo CnruYoN Mtt-t- Hwv 276 12 Mtes Nonrn Or Bulurnoc P. O. Box2101 Lnxr PoweLL, UIRH 84533 PRrpRRro gv: R nxo D Erurcnpntses, luc. P.O. Box 3321 CRsprn, WY82602 ,1 I:l ) ;i 'i r.rrj''.1 il\' l : --l I Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 -2024 Radon Flux Measurement Report November 15,2024 - Page '1 of 139 TaeLe or Corurerurs Pace CeRrrrrcaroN -40 CFR Panr 61.254 (aX4)......... ................ 3 lrurRooucloN........... .....................4 Stre DescntpIoN........ ..................... 4 ReouraroRv ReQutnenaENTS AND RereReNces............... ...................... 5 Snnltpltttc Mrruooot-ocY.............. ..................... 5 Frelo OpenaroNs ......... 6 Saupte Locettotts, lDENTtFtcATtoN, AND PlaceueNr .......... 6 QualrrY CoNTRoL... .......7 SauptrNc PRocEDURES............... ...................... 7 Sample Cusroov... ........7 GaLreRArtoN PRocEDURES AND Fneouencv ......7 lrureRNel Qunlrrv CorurRol Cnecrs nno FReQuENcY ......... ................. I Dara PnecrstoN, AccuRAcy AND CoupuereruEss............ ...................... 8 AppeNorx A Sunaueny TaeLe or Arunlwrcal Resurts, PtaceueHr Gnto AND LocATtoN MAP...9 AppeNorxBLABoRAToRvANalvrtcalResulrsANDCeRrtrtcerloNs......... ..........l3 AppENDrx C SrlruoaRo OpeRartruc PRoceouRES.......... ....................89 Apperuorx D PnorocnapHs.......... .....138 Anfield Resources Holding Corp - Shootarri%3r"if!#i,- |r,E"rll?i 16124 Radon Flux Measurement Report CERTIFICATION - 40 CFR PART 61.254 (aX4) 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 . ANrrrlo RrsouRcrs HoLDtNG Conp. - Conponnrr Orrtcen November 12,2024 Josnun BLEAK, CHtrr Execurtvr OrrtceR Dnrr Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 3 of 139 lrurRooucnoru ln 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 Measuremenf. 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 (llACC) collectors located on site. Pace Analytical, lnc., a certified, commercial analytical laboratory, provides unexposed activated charcoal charged cans and analyticalservices. July 2, 2020, G. Sorenson, Environmental Scientist, Utah Division of Air Quality, requested that the Shootaring Canyon Mill, UT Air Quality Division, Site lD 14169 be included with all correspondence and reports. The Company provided the State of Utah, Department of Environmental Quality (DEQ), Division of Air Quality (DAO) a tentative (weather dependent) quarterly sampling schedule. Once quarterly sampling dates were established, UDEQ-DAQ was provided advanced notice [Emails dated Ogl15l2o23, 1210712023, O2lO7l2O24, 0610912024, OBlOgl2O24l. The UDEQ-DAQ did not have a representative present during the sampling events. The regulation,40 CFR Part 61, Method 115, Section2.1.7 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 ldentification 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). ln2024, 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/mz-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.ln 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 1 15. Srre DescRrPTroN The Shootaring Canyon Millfacility 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 celland covered with native soil. The disposalcell is contained in an area of approximately 2,508 m2, equivalent to approximately one-half acre. Anfreld Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 4 of 139 ln August 2004, the State of Utah, was granted an amendment, from the US NRC, ...fo assume regulatory authority over the possession and use of 11e.(2) byproduct mateial, 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 propefty ownership changed. ReouuroRy REaUTREMENTS 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 subsection6l.252Standard, (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 lhal: Compliance with the emr.ssrbn standard in this subpart shall be determined annually through the use of Method 115 of Appendix B. EPA Method 1 '15, 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 April2017. EPA Method 1 15's technical information referenced EPA's publication 52015-85-029, Radon Flux Measuremenfs on Gardinier and Royster Phosphogypsum PrTes Near Tampa and Mulberry, Florida. Senltpltttc M erxoooLocY 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 Emisslons. 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 charcoalwas placed in the canisters on a support grid on top of a ll2-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 I-AACC 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 originaltotalactivity 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 Report November 15,2024 - Page 5 of 139 After 24-hour exposure period, the l-MCCs are removed and transported to an enclosed work area so that the exposed charcoal can be transfened to steel sample @ntainers, sealed, identified, labeled, and packaged to be transported to Pace Analytical's Sheridan, WY laboratory facility. Frelo OpenlrtoHs 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 individualradon flux results for2024 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. Suooranrxc GANyoN Mrl - UT Srre lD 14169 Surumany oF LAACC MEASUREMENTS QunRrgn l"tQUARTEr 2024 2nd QuRRtrn 2024 3'd QuRRteR 2024 4th Qunnrrn 2024 LoCATION Rnooru FIux AvrnAGE TABLE Laa lD s2401079 s2404146 s2407248 s2410070 DRrr DeploYeo 01t05t2024 04t06t2024 07t1212024 10t01t2024 DRTE RrrRrEveo 0110612024 o4to7t2024 07t13t2024 10tozt2024 Senaple LocRrtons, lDENTIFtcATtoN, 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 (lD) was assigned to every sample point, using a sequential alphanumeric system indicating the physical location within the region (e.9., 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 Report November 15,2024 - Page 6 of 139 The LMCC units are systematically disassembled so that the premeasured blank charcoal media can be distributed in the media support grid. LMCC 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. Qualrrv Corurnol ln 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. Allcharcoal (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 lnformation 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. Sanapur,tc PRoceounes Field forms were created to document the site/pile name, sample location, sample lD, deploy and retrieval date and time, meteorological conditions, and comments. Sample Cusroov A Chain of Custody was used for sample submittal and sequence of sample transfer. CeLreRArroN 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 Report November 15,2024 - Page 7 of 139 lrureRneu Queurv Corurnol Cnecxs eruo FReouENcY 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. Dare PnecrsroN, AccURACY AND CotuplerENESS 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. ln 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: t10% - Accuracy refers to the closeness of a measured value to a standard or known value. ln 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. |n2024, one hundred (100) samples met the completeness criteria. No collector was compromised by a sealfailure due to precipitation or wind event, or breakage. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15, 2024 - Page 8 of '1 39 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 Report November 15,2024 - Page 9 of 139 AxrIeIo RESoURCES HOLDING CONP. SxoornRtHc Caworu MtL UT Arn Quaurv !D 14169 2024 Rloox Ftux Avenace Data Type 2024 Data Set Mrr.r pCi/m2-sec 0.7 Mnx, pCi/m2-sec 59.2 Sroev, pCi/m2-sec 8.60 AvERAGE, pCi/m2-sec 13.68 No. 1"'QuAnrER 2no QUARTER 3"o QuenrER 4TH QUARTER GRID ID pCi/m2-sec Gnro lD pCi/m2-sec Gnro lD pCi/m2-sec Gnro lD pCi/m2-sec DATE DEPLOYED 01t05t2024 DATE DEPLoYED 04t06t2024 DATE DEPLoYED 07t12t2024 DATE DEPLoYED 10t0112024 DATE RETRIEVED 01t06t2024 DATE RETRIEVED 04t07t2024 DATE RETRIEVED 07t1312024 DATE RETRIEVED 10t02t2024 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-'l 13.8 F-6 7.3 t-1 19.3 7 A-7 12.6 D-2 13.5 F-7 15.6 t-2 17.9 8 A-8 19.6 D-3 9.9 F-8 5.0 l-3 19.0 I A-9 22.2 D-4 12.9 F-9 3.7 t-4 12.1 10 A-10 7.6 D-5 13.9 F-1 0 8.4 t-5 10.3 11 B-1 22.3 D-6 9.2 G-1 18.0 l-6 6.1 12 B-2 16.4 D-7 12.0 G-2 20.0 t-7 5.8 13 B-3 16.7 D-8 14.9 G-3 39.9 t-8 10.8 14 B4 26.0 D-9 1.0 G-4 15.6 t-9 23.9 15 B-5 17.8 D-10 5.7 G-5 16.9 t-10 27.2 16 B-6 22.4 E-1 6.9 G-6 14.2 J-'l 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 't 1.6 J-5 2.0 21 c-'l 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 '1 1.5 H-3 16.4 J-8 3.2 24 c4 2',t.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-1 0 18.2 Mrr.r 7.6 Mtr.t o.7 Mttt 3.4 Mtr.t 2.0 Mnx 59.2 Max 21.2 Mnx 39.9 MAx 27.2 Sroev 9.69 Sroev 5.5 Sroev 7.5 Srorv 7.55 AVERAGE 19.96 AVERAGE 8.9 AVERAGE 13.6 AVERAGE 12.3 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15, 2024 - Page 1 0 of 1 39 NORTH WEST J I H G F E D c B A SOUTH WEST 10 Anrreuo Resounces Hot-onc Conp. Snoorantxc Clruvott Mtt-t- UT Arn Qualtrv lD 14169 Tltt-rrucs Cell Gnlo 2024 Raooru Flux Resulrs Gnto Kev Raooru Flux Resulr tru oCi/m2-sec NORTH EAST J I H G F E D c B A SOUTH EAST10 Dare Ser SuuruaRv Mtt'tttrrtuu 0.7 oCi/mz-sec MRxttvtuv 59.2 oCi/m2-sec SrnltoRno Devtnttott 8.60 oCi/mz-sec AVERAGE 13.68 pCi/mz-sec 4rH-zs 18.2 4rH -24 20.3 4rH -23 3.2 4rd -22 6.2 4rH -21 3.8 4rH-20 DUP 26 2.Olt.6 4rH -19 4.9 4rH -'18 7.1 4rH -i7 24.4 4rH -16 1.4.2 4rH-1 5 27.2 4rH -14 23.9 4rH -13 10.8 41N -12 5.8 4rn -11 5.1 4rH-1 o 10.3 4rH -8 72.1 4TH -8 19.0 4TH -7 17.9 4rH -6 19.3 4rH-5 5.0 4rH -4 20.0 4rH -3 10.1 4rH -2 6.8 41H -1 7.7 3Ro - 25 13.9 3Ro - 24 12.7 3RD - 23 16.4 3Ro -22 17.1 3RD - 21 16.3 3RD - 20 DUP 2 11.6/9.3 3Ro - 19 3.4 3RD - 1g 5.0 3Ro - 17 74 3RD - 16 14.2 3RD - 1s '16.9 3RD - 14 15.6 3RD - 13 39.9 3Ro - 12 20.0 3RD-11 18.0 3Ro -'lo 8.4 3Ro-9 3.7 3RD-8 5.0 2RD 1 15.6 3RD-6 7.3 3RD-5 21.3 3RD -4 14.8 3RD_3 17.O 3RD-2 9.4 3Ro - 'l 1 0.1 2ND-25 3.3 zNo-24 o.7 2ND-23 11.5 zND-22 5.4 zND-21 7.3 2No-20 3.8 2ND-1 9 3.7 2ND-'19 6.0 zNo-17 5.4 2ND-1 6 6.9 2ND-'l 5 5.7 zNo-14 1.0 2No- 1 3 14.9 zNo-12 12.0 2ND-1 1 9.2 2ND-1 0 13.9 2ND-9 12.9 2ND-B 9.9 2ND-7 13.5 2ND-6 13.8 2ND-5 2.9 zNo-4 4.3 2ND-3 2',t.2 zNo-2 18.3 2ND.1 DUP 26 14.Ot14.7 1sr - 25 '16.5 1sr -2421.5 1sr - 23 15.5 1sl -2214.5 1sr - 21 14.8 1sr - 20 10.0 1sr - 19 21.7 1sr - 18 59.2 1sr - 17 26.9 1sr - 16 22.4 1sr - i5 17.8 1sr - 14 26.0 lsr - 13 16.7 1sr - 12 16.4 1sr- 11 22.3 1sr - 10 7.6 1ST _ 9 22.2 1sr - I 19.6 1sr - 7 12.6 1sr - 6 12.3 isr - 5 17.3 1ST - 4 30.5 isr - 3 19.0 1ST _ 2 16.9 1sr - 1 DUP 26 18.9/1 8.0 Anfleld Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 11 of 139 3oO. , U) m= 0- o: 9 o I a 3 q ) o = >fl - u- d o ( [ C n (o (r n af O o9 = o ) $ c t r *- U . _ l N O CC N d O o 4| , - - J N J fr i f a *9 V 1. *L ,; i) ,l t4 JT ls I to I I. r cl le . e l l" e , q l li : l lr o ol l- ,' l '' I ." t * tt , I a,t ta r ' . ,. / .f ,' -/ \ > '- - - z \ I lrrl.f . , lt . 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(,(9d. >s u :H =: -o , o 'n i ia . r E +d S d ZO N o-:\ o\1 \3${ o0sr o\ o\ c. ioct s(a\ \\sl \oT \af. r :}oS., Vt3sl \,o\ \,b\ t\osT No\ >s , ul : : aA >f i dX E: -o > e. ' O > q r d <d s u zo No $qr \\ f)\ \ t^IJ 1^ , i 3\ \, \,\ \9 \) \ a a 00\' $\ N zUJ lr l (9zcl thE,UJG, fdF<lNoN za .a o X =s g -= \ r= r{ o-:)oI N m sf rn (o CN or{ 6 Nco (no <fao rj . l co (oco Jo: r a) z r3 I-(- . ) tf l \N tq \{ \a0 0\ s{ t(r ) q\ qt" | \*, tF.\ \n q6cl q+CI e) E (J r1= I \I hI k,IJ ch\I tr t (\ l I \I coI I oc- ( I qlI <\ tcrI JI NI sfI 0I oI iooo)trcll)Eofooo=xfl, !CoE)(!tttNTs Cl) E (o o5p .e B in f l =N-obN>6 6Fobol) .c EEEZ' ooZ EacioOo) ,EooIoq)efoaotr:oo)Ec *l IIoj{o lr JFozogt. l . IJIsGu,Fta=6o(J0c-(JoUJFE!u0c tr J(,0l3=o.nI=u,x)ltzooc, ot rDt'ev=o5dfUUJdcdJ=2o2u(,zacoo.AdJJIJ(JIa(.zotr3oJ4cot)(,zcto-IAlr l(,4=otit!ocolr lrzFzlr ,J(J o- t!Fz= a! - E- c Eg - FzUo(J k Vt \t h \n + 10 h vr 2 oi6g Fr !zt =Joz (J > i6o F at Z. E= =OL9 LGsl < Nl- li rooozoCLc3oIsfN(L(JUJc,o-zoEozo()G,ut !FU3 UJo-Er t <o q- (Ds tqI :l r $4oI \ l oI r5, La)) 14tI EsI \on\ (rG) oploI 3 o<dEn= Fl q Fqd< G Cd1h(9G, €(9tt l (9&, C|9vl (9d. C(9tt(9d. s(, tl19E ts (9tl(9d. C.6th(9d. (9th(9d. E, (, th(9c. I I I >s l u 3H = H SE T r -d SE z, o N \ot,sl 6E3.N o\a\ 9tos- f ofl o)\ \ \ \\ I I 3H EE 3E r 3 -i su z. o No N\ r\ Ft. N s. ot Ot ol o\ I I Fzlr JUJ(9zc=tt lEUJFGfcl$NoN zo 3E E FCO coo ol co or. , l ro Ft I NU dt(, a() laI z5o -z3E Yzsco Yzslo F{Ioocos F{I43oo5 dIGDoo5 F{IG3oos JO :lF l) 2d.=+d (J eYrs{ q.lf( eFC. ( q$\ <tolc( qo11 \s. ) qst$) \fDtr ) to sf{tt \Ct$t \!t fn aezI IezI Ie2s Ie2I 8= l= ?c. (J .9J at I o\J tr r I {f{I HI s{I bI FlIro NIao mIo Ylo r{IC] Nio mIo T3 t')/ -{ace Anatvtical Average weight of cans: 74.4 g Average weight of cans and Charcoal: PACE ANALYTICAL 1673Te(aAvenue Shpndaf,W 82801 ph (30716728945 Ia! (107)6726053 or Radon Flux Canned Collection Media List of cans shipped: Date shipped: 12/1912023 1Athru35A b': $A lZ, .ZZ o 7 3 The canisters and activated charcoal are baked at 1 10 degrees Celsius lor at least 24 hours, allowed to cool, capped and sealed. A minimum ol 10 percent are randomly checked for radon before they are shipped Area Counts Count Time Date Date Can #<100 Seconds CPM Checked Prepped 10A 't0 600 1.0 1211812023 12114/2023 224 19 600 1.9 12/1812023 12114/2023 234 14 600 1.4 12/1812023 1211412023 35A 7 600 0.7 12/18/2023 1211412023 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report lnter-Mountain Laboratories, tnc. November 15,2024 - Page17 of 139 AHnelo ResouRces Hototttc CoRp. Sxoorentuo CauYott Mtt-t- UT Atn Quaurv lD 14169 Tetllttcs Cell Gnto 2024 Rnooru Flux Resuurs GRID KEY RRooN Flux Resulr tu pCi/m2-sec NORTH WEST J I H G F E D c B 10 NORTH EAST 4fH-25 4rH -16 1.r I 4rn-15 4rH-s H 3RD-20 i 3RD - 19 3RD - 1g G 3RD-10 ] S*o-g 3RD-8 3RD-7 2ND-1 5 D 2No-5 C B A SOUTH WEST 10 A SOUTH EAST STANDARD DEVIATION 4rH -24 41H -23 4rH -22 4rH -21 4rH-20 4TH -18 4rr -18 4rN -17 4TH -14 4rH -13 4rH -12 ArH -11 4rH -10 4fr -8 4rH -8 4rH -7 4rH -6 41H -4 4rH -3 4rH -2 4rN -j 3Ro - 25 3Ro - 24 3Ro - 23 3Ro - 22 3RD - 21 3RD-17 3RD - i6 2RD 15 3RD - 14 3RD - 13 3RD - 12 3RD-11 3Ro-6 3Ro-5 3RD -4 3Ro-3 3RD-2 3RD-1 2ND-25 2No-?4 2ND-23 zNo-22 2No-21 2ND-20 2No-1 g 2ND- 1 g zND-17 2ND-1 6 2ND- 1 4 2ND-1 3 2No-12 2ND-1 1 2ND- 1 0 2ND-9 2ND-8 zNo-7 2N0-6 2ND.4 2ND.3 zNo-2 2No-1 1sr - 25 1sr -24 1sr - 23 1sr -22 1ST -21 1sr - 20 1sr - 19 1sr - 18 1sr - 17 1sr - i6 jsr -'15 .lsI 14 1sr - 13 1sr - 12 1sr-ll 1sr - 1o 1sr - g 1sr -8 1sr-7 1sr-6 1sr - s 1sr -4 1sr - 3 1sr -2 Isr - 1 ouP-26 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site '14'169 - 2024 Radon Flux Measurement Report November 15, 2024 - Page 1 8 of 1 39 DC#_Title: ENV-FRM-SHRT-0033 vO2-Condition Upon Receipt Form Tena Lab Eff ective D ale'. 4 I 24 I 2023 Survey Meter # pH strip lot # Thermometer SN# Condition Upon Recelpt (Attach to COG) SannplE-Beceipf 1 Number of ice chests/packages receivod: -L RO!? Yes @ Nob as 'OfC ' ,, sa mples are received ovar the countar, unpEckeged 2 Temperature of mde than I obbin en additional CUR ftm. Temps Observed Temps Corrected Acceflzble le : O.1" b |O"C tt Baetqla; and 0.1' to 6'C for mosl olhs watq pilameters. Sarrrp/ss may not heve hed adequate time to cool faltowing cdlection. lndicdte ROI (Received on lce) fu bed sdmdes recelved on the eme day as sdnpled, ln additbn to tempd/atwo et rcceipt Cllent contact for tempqatures outslde method crlterla must be documented fulow. 3 Emission rate of samples for radiochemical analyses < O.SmR/hr? @ No N/A 4 COC Number (lf applicable): 5 Do the number of bottles agree with the COC? 6 Were the samples received inlacl? (no oroken Dottlos, leaks, alc., 7 Were the sample custody seals intact? 8 ls the COC properly completed, legible, and signed? Samote Verincatlon 1 Were all requested analyses understood and appropriate? 2 Did th6 bottle labels correspond with the COC information? 3 Samples collected in method-prescribed containers? 4 Sample Preservation: pH at Receipt: _ Tobl Metals _ Diss Metals _ Nutri€nt _ Cyanid€ _ Sulfide _ Ph6nol SDWA Rads HNOs 5 VOAvials 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? lf 'Yes', which type of subcontracting is required? General Gustomer-Speclfied Sample Receipt, Verification, Login, Labeling & Distribution completed by (initidts)i Af Set ID: (use t,r,ck of sheet fur notes on dlscrepancles) Anv ltetts llsted above with a resoonse of "No' or do not meet speclfrcations must be resolved. Person Contacted: lnitiated By:Date,/Time: Problem: Resolution: Flnal pH (if added in lab): _ Tolal Metials _ Diss Metals _ Nutrisnt _ Cyanide _ Sulfide - Phenol _ SDWA Rads Preservatlve/Lot# HNO! Filtercd and presoryed in metals HzSO. NaOH ZnAc6t H25O. @G Yes @ YG\g Yes No GNo Yes NoYes G No N/A No N/ANo@ No No No No Date/Tlme Added: Filtercd and preseNed in motals @ @ Gertified favo1o27 Method ofContact: _ Phone: Email: Qualtrax lD: 70962 Pace@Analytical Services, LLC Page 1 of 1 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2A24 Radon Flux Measurement Report November 15, 2024 - Page 1 9 of 1 39 {) hceAnalytical Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 Anfield Resources SHOOTARING CMP-UT AQ ID 14169 1ST QTR s2401 079 ph (307) 672-894s GL!ENT: Project: Lab Order: Date: 111512024 CASE NARRATIVE Report lD: 52401079001 Entire Report Reviewed by: Wade Nieuwsma, Laboratory Operations Manager Samples A1 , A10, A1-DUP, A2, A3, A4, A5, A6, 47, A8, A9, B1 , 810, 82, 83, 84, 85, 86, 87, 88, 89, 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 141EPA60012-78-054 methods NDEP Mining Methods 40 CFR Part 50, Appendices B, J, L, O and FEM EQL-0310-189 lO 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 Jl5;X,il'ff;i,ffio ManuarVer 4 o XSA/SSSA 9 Methods of Analysis Part2, 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: Page 1 of 2 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 20 of '139 ilu**o,Pace Analytical '1673 Terra Avenue Sheridan. WY 82801 ph: (307) 672-8945 Date: 111512024 RL Definitions Reporting Limit A B c D E G H J L M N ND o e S U X Qualifiers Value exceeds Maximum Contaminant Level Check MSA specifications Analyte detected in the associated Method Blank Calculated Value Report limit raised due to dilution Value above quantitation range Analyzed at Pace Gillette, WY laboratory Holding times for preparation or analysis exceeded Analyte detected below quantitation limits Analyzed by another laboratory Value exceeds Monthly Ave or MCL or is less than LCL Sample analyzed outside of compliance requirements Not Detected at the Reporting Limit Outside the Range of Dilutions Sample preserved in lab at time of receipt RPD outside accepted recovery limits Spike Recovery outside accepted recovery limits Analyte below method detection limit Matrix Effect Page 2 ol 2 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 21 of 139 lennUttat Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 Sample Analysis Report : Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, M 85210 Project: SHOOTARING CMP-UT AQ lD 14169 1ST QTR COC: ph: (307) 672-8945 o CLIENT Date Reported: 1 11512024 Report lD: 52401079001 Work Order: 52401079 Date Received:. 1 l8l2Q24 Sampler: RG/SG/LM Lab lD: 52401079-001 Client Sample lD: 41 Collection Date: 11612024 11:59:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 189 pCi/m2-sec 0110912024 08:47 WN EPA1150.5 Lab lD: 52401079-002 Client Sample lD: A1-DUP Collection Date: 11612024 11:59:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 180 pCi/m2-sec 011091202409:'13 WN EPA 115 Lab lD: 52401079-003 Client Sample lD: A2 Collection Date: 1 1612024 12:0Q00 PM Matrix: Solid Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 16.9 05 pCi/m2-sec 011091202409:26WN EPA 115 Lab lD: 52401079-004 Client Sample lD: A3 Collection Date: 'l16/2024 12:00:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 190 05 pCi/m2-sec 011091202409:38WN EPA 115 Lab lD: 52401079-005 Client Sample lD: A4 Collection Date: 1/6/2024 12:01:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 30.5 0.5 pCi/m2-sec 011091202409:52WN EPA,1 15 Lab lD: 52401079-006 Client Sample lD: A5 Collection Qals; 11612024 12:01:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 17.3 pCi/m2-sec 0111312024 15:09 WN These results apply only to the samples tested. Paoe 1 of 5 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux MeasurementReport November 15,2024 - Page 22 of 139 EPA 115 n' /aceAmtyttal Pace Analytical '1673 Terra Avenue Shertdan, WY 82801 ph: (307) 672-8945 o CL Sample Analysis Report IENT: AnfieldResources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 SHOOTARING CMP-UT AQ ID 14169 1ST QTR Date Reported: 1 11512024 Report lD: 5240'1 079001 Work Order: 52401079 Date Receivedt I 1812024 Sampler: RG/SG/LM Project: COC: Lab lD: 52401079-007 Client Sample lD: Ao Collection Date: Matrix: 1161202412:02:00 PM Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 12.3 05 pCi/m2-sec 0110912024'10:'17 WN EPA 115 Lab !D: 52401079-008 Client Sample lD: A7 Collection Qalq 11612024 12:02:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 126 pCi/m2-sec 0110912024 10:29 WN EPA 115 Lab lD: 52401079-009 Client Sample lD: A8 Collection Date: 11612024 12:03:00 PM Matrix: Solid Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 19 6 EPA 1,I 505pCi/m2-sec 0110912024'10:41 WN Lab lD: 52401079-010 Client Sample lD: A9 Collection pstg; 1/6/2024 12:04:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 222 pCi/m2-sec 0110912024 10:57 WN EPA 115 Lab lD: 5240'1079-01 1 Client Sample lD: A10 Collection Date: 11612024 12:04:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0110912024 11:21 WN EPA 115057.6 Lab lD: 52401079-012 Client Sample lD: Bl Collection psfe: 1 1612024 12:04:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0110912024 1 1:33 WN These results apply only to the samples tested. Paoe 2 of 5 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 23 of 139 EPA 115 4e natytra, Pace Anal,tical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 o CLIENT Sample Analysis Report : Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Date Reported:. 111512024 Report lD: 5240'107900'1 Work Order: 52401079 Date Received: 1 1812024 Sampler: RG/SG/LM Project: SHOOTARING CMP-UT AQ lD 14169 1ST QTR COC: Lab lD: Client Sample lD: 82 s2401 079-01 3 Collection Date: 1 1612024 1205:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0110912024 1'l :45 WN EPA'l 1516 4 0.5 Lab lD: 32401079-014 Collection Date: 1/6/202412:06:00 PM Client Sample lD: 83 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0110912024 '1 1.57 WN EPA 11516 7 0.5 Lab lD: 52401079-015 Collection Date: 1161202412:06:0OPM Client Sample lD: 84 Matrix: Solid Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 26.0 0 5 pci/m2-sec 0110912024 12.1 0 WN EPA 1 1 5 Lab lD: 52401079-016 Collection Date: 11612024 12:07 00 PM Client Sample lD: 85 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0110912024 12.22 WN EPA 11517.8 0 5 Lab lD: 52401079-017 Collection Date: 1i6l2024 12',07:00 PM Client Sample lD: 86 Matrix: Solid Anal)rses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCiim2-sec 0110912024 12:34 WN EPA 11522 4 0.5 Lab lD: S2401079-018 Collection Date: 11612024 12:08:00 PM Client Sample lD: 87 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0110912024 12:46 WN EPA 115269 05 These results apply only to the samples tested. Paoe 3 of 5 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 24 of 139 Qcenaytrut Pace Analytical 1673 Terra Avenue Sheridan, WY 8280'l ph: (307) 672-8945 o CLIENT Project: COC: Sample Analysis Report : Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 SHOOTARING CMP.UT AQ ID 14169 1ST QTR Date Reported: 1 11512024 Report lD: 52401079001 Work Order: 52401079 Date Received: 1 1812024 Sampler: RG/SG/LM Lab lD: 52401079-019 Client Sample lD: Ba Cottection Date: 'l16/2024 12:08:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0110912024 12:58 WN EPA 1150.5 Lab lD: 52401079-020 Client Sample lD: 89 Collection Date: 1 1612024 12:Q9:00 PM Matrix: Solid Anal)rses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 21 7 pCi/m2-sec 0110912024 13:12 WN EPA 1 150.5 Lab lD: 52401079-021 Client Sample lD: 810 Collection Date: 11612024 12:09:00 PM Matrix: Solid Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 100 EPA 1 15pCi/m2-sec 0110912024 13:39 WN Lab lD: 52401079-022 Client Sample lD: C1 Collection Date: 1 1612024 12:10:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyed/lnit Method Radon Flux Radon-222 14.8 pci/m2-sec 0110912024 13:51 WN EPA 115 Lab lD: 5240'1079-023 Client Sample lD: C2 Collection Date: 11612024 12:10:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 145 pCi/m2-sec 0110912024 14:04 WN EPA 1,,I5 Lab lD: 52401079-024 Client Sample lD: C3 Collection Date: 11612024 12:11:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 1 5.5 pCi/m2-sec 0110912024 14:16 WN These results apply only to the samples tested. Paoe 4 of 5 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux MeasurementReport November 15,2024 - Page 25 of 139 0.5 EPA 115 n1 y'aceAnalytiut Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 Sample Analysis Report IENT: Anfield Resources 3346 W. GuadaluPe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UTAQ lD 14169 1ST QTR COC: ph: (307) 672-8945 o CL Date Reported: 1 I 1512024 Report lD: 5240'1 079001 Work Order: 52401079 Date Received: 1 1812024 Sampler: RG/SG/LM Lab lD: Client Sample lD: C4 s240'1079-025 Collection D.zfe 11612024 12:11:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0110912024 14:29 WN EPA 1'1521 5 0.5 Lab lD: 5240'1079-026 Collection Date: 11612024 12:12:00 PM Client Sample lD: C5 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 16.5 0 5 pCi/m2-sec 0110912024 14:42 WN EPA '1 15 Lab lD: 52401079-027 Collection Date: Client Sample lD: Blank B-1 Matrix: Solid Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 ND 0.5 pCi/m2-sec 0110912024 14.56 WN EPA '1 15 Lab lD: 52401079-028 Collection Date: Client Sample lD: BLANK B-2 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0110912024 15:09 WN EPA I15ND 0.5 Lab lD: 52401079-029 Collection Date: Client Sample lD: BLANK B-3 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 ND O-5 pCi/m2-sec 0110912024 15:22 WN EPA l'15 Lab lD: 52401079-030 Collection Date: Client Sample lD: BLANK B-4 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 ND O-5 pCi/m2-sec 0110912024 15:36 WN EPA 115 These results apply only to the samples tested. Paoe 5 of 5 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 26 of '139 {)/ y'aceAnaWul Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 Radon-222 ANALYTICAL QC SUMMARY REPORT Sample Type MBLK Date: 111512024 Report lD: 52401079001 Units: pCi/m2-sec ph: (307) 672-8945 CLIENT: Anfield Resources Work Order: 52401079 Project: SHOOTARING CMP-UT AQ lD 14169 lST QTR Radon Flux MB START (01/09/24 08 15) Analyte RunNo 217602 Result Spike Ref Samp %REC % Rec Limits Qual MB END (01/09/24 16 30) RunNo:217602 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon Flux Radon-222 Radon-222 Units: pCi/m2-sec 98 3 90 - 110 STD LOW START (01/09/24 06:56) Analyte RunNo: 2 1 7602 Result RL Spike Ref Samp %REC % Rec Limits Qual STD LOW END (01/09/24 16:44) RunNo:217602 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 400 Sample Type LCS2 387 103 Units: pCi/m2-sec 05 90 - 110 Radon Flux Radon-222 STD HIGH START (01/09/24 08 28) RunNo: 21 7602 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual STD HIGH END (01/09/24 16:"15) RunNo: 217602 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 3880 Sample Type DUP 3870 Units: pCi/m2-secRadon Flux 52401 079-001ADUP (01/09/24 08:58) Analyte RunNo 217602 Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 19 5 18 9 S2401079-010ADUP (01/09/24 1 1:09) RunNo: 217602 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 S240"1079-020AOUP (01109124 13 24) RunNo: 217602 Anatyte Result RL Ref Samp %RPD %REC % RPD Limits Ouat ] Radon-222 21.7 S2401079-030ADUP (01i09/24 15:49) RunNo:217602 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 Anfield Resources Holdins Corp - Shootarffi"?it1%y!-r.Jl""!1,3i1#24 Radon Flux Measurement Report Page 1 of 1 )"r0)O) (!o- mul=,+ @@ it Cf) I r.- 6F - sNOr l: ( o \IzJ ^da< .E \I cl6-5[ Y<i DOI c t/l o'E( o ANg i. 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SHooranrruc Caruvon Mtt-t- UT Arn Qunurv lD 14169 Tatrrucs Cell Gnro 2024 Rnooru Fuux Resulrs GRID KEY Rnooru Flux Rrsult tr.t m2-sec NORTH EAST J I H G F E D c B A SOUTH EAST DATA SET SUMMARY MINIMUM oCi/m2-sec MRxruuHrr pCi/m2-sec STANDARD DEVIATION pCi/m'-sec AVERAGE oCi/m2-sec 4'tH-25 4rH -24 4rH -23 4TH -22 4TH -21 4rH-20 41fl -18 4rH -18 4rH 17 4TH -16 4rH-1 5 4TH -14 4rH -'13 4rH -12 4rH -i1 4rH-'10 4TH -8 4rH -8 4rH -7 4rH -6 4TH-5 l 4rH -4 4rH -3 4rN -2 4rH -1 3RD - 25 3Ro - 24 3RD - 23 3RD - 22 3RD - 21 3RD - 20 3Ro - 19 3RD - 18 3RD - i7 3RD - 16 2RD 15 3Ro - 14 3RD - 13 3Ro - i2 3RD -'t1 3Ro 10 3RD-9 3Ro-g 3RD-7 3RD-6 3Ro-5 3Ro -4 3RD.3 3RD-2 3Ro-1 2ND-25 zNo-24 2ND-23 zNo-22 zND-21 2ND-20 2No-1 g 2No-1 g zNo-17 2No-'16 2ND-1 5 2ND-14 2No-1 3 2No-12 2ND-1'l 2ND-1 0 2ND.9 2ND.8 zNo-7 2No-6 2No-s 2ND-4 2ND.3 zNo-2 2ND-1 DUP 26 isr - 2s 16.5 lsr -24 21.5 1sr - 23 15.5 1sr -2214.5 1sr -21 14.8 1sr - 20 10.0 1sr -'19 21.7 1sr - 18 59.2 jsr - 17 26.9 1sr - l6 22.4 lsr - 15 17.8 1sr - 14 26.0 1sr-13 16.7 isr-12 16.4 lsr-1,1 22.3 1sr - 1o 7.6 1sr - g 22.2 1sr - g 19.6 1sr - 7 12.6 1sr - 6 12.3 lsr - 5 173 lsr - 4 30.5 1sr - 3 19.0 lsr - 2 169 1sr - 1 DUP 26 i8 9/iB 0 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 31 of'139 PACE ANALYTICAL 1673 lela Avcnuc Shs,,d.,n. wY 87801 ph (lo7) 672 8X5 lar (107) 672-6051 Average weight of cans: 74.4 g Average weight of cans and Charcoal: Radon Flux Canned Collection Media 255 g List of cans shipped: Date shipped:31712024 The canisters and activated charcoal are baked at'l 10 degrees Celsius lor at least 24 hours, allowed to cool, capped and sealed. A minimum of 10 percent are randomly checked for radon belore lhey are shipped. Detector: HPGe Area Counts Count Time Date Date Can #<100 Seconds CPM Checked Prepped 7a I 600 0.9 31512024 31s12024 15A 12 600 1.2 31512024 3ls/2024 244 11 600 1,1 3/512024 31512024 324 1 600 0.'l 31512024 31512024 14thru35A ,./ tA tl,rv 3;4W 3't3-)Y Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report tnter-Mountain Laboratories. lnc. November 15,2024 - Page 32 of 139 Page t ot l DC#_Title: ENV-FRM-SHRT-0033 v02-Condition Upon Receipt Form Terra Lab Eff ective D ate: 4 I 24 I 2023 4 COC Number (lf applicable): 5 Do the number of bottles agree with the COC? 6 Were the samples received inlacl? (no brckon bottles, ledks, etc.) 7 Were the sample custody seals intact? 8 ls the COC properly completed, legible, and signed? Semole Verlftcetl@iofl 1 Were all requested analyses understood and appropriate? 2 Did the bottle labels conespond with the COC information? 3 Samples collected in method-prescribed containers? 4 Sample Preservation: pH at Receipt: Final pH (if added in lab): - Tolal Metals - Total Metals - Diss Metals - Diss Matlals Preservatlve/Lot# HN03 Filtered and presoryed in metdls H2SOl NaOH ZnAcet H2SOl 27130475 Date/Time Added: Filtered €nd presarved in metals No NrA No N/A No .@> No No No No _ Nutrient _ Cyanide _ Sulfide _ Ph€nol _SDWA Rads 5 6 7 8 Qualtrax lD: 70962 Anfleld Resources Holding Corp HNOs VOA vials have <6mm headsPace? Were all analyses within holding time at tho time of receipt? Have rush or project due dates been checked and accepted? Do samples require subcontracted analyses? lf 'Yes", whlch type of subcontracting is required? lnitiated By; Yes & General Customer-Speclfled _ Nutrient _ Cyanide _ Sulfide - Phernl SDWA Rads No No No @ @ Sample Receipt, Verification, Login, Labeling & Distribution completed by pntttatsl'. lJ Set lD: Olscreoancv Oocum (use back of sheet for notes on dlscrepancles) Anv ltems llsted above wlth a resoonse of "No* or do not meet soeclflcatlons musl be resolved. Person Contacted:Method of Contact: _ Phone: Email:Datey'Time: Problem: Resolution: Certlfled fivoyl7( Pace@ Analytlcal Services, LLC - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 33 of 139 Survey Meter # pH strip lot # Thermometer SN# Condition Uoon Receipt (Attach to COC) Samnle-Becelpt 1 Number of ice chests/packages received' -L ROI? Yes Nolg as 'OfC ' if sa mdes arc received ovet tho counlaL unpackaged Cllent contact for temoeratures outside method criteria mt+st.be documented below. 3 Emission rate of samples for radiochemical analyses < O.SmRl/hr? (@ No N/A 2 Temperature of obtain dn additionel CUR Temps Observed ("C Temps Corrected ('C Acceptebla lr: 0.1" lo 10'C fq Eectsia: and 0.1" lo 6'C fq most othq wdt* p*amators. Sampres may not hovo had adequata llme lo coot fdtowing coltection. lndicate ROI (Recaived on lce) lq iced samples recaived on the same day as sampled, in additbn lo lemqqatwe at receipl @@ Yes@ lfhffi(6 Yes Cc' Yes Page 1 of 1 f)/ /aceAnalytical Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 Anfield Resources SHOOTARING CMP-UT AQ ID 14169 2ND QTR s2404146 Date: 411612024 CASE NARRATIVE Report ID: 52404146001 ph: (307) 672-8945 CLIENT: Project: Lab Order: Entire Report Reviewed by: Wade Nieuwsma, Laboratory Operations Manager Samples BLANK B-1, BLANK B-2, BLANK B-3, BLANK B-4, C10, C6, CO DUP, C7, C8, C9, Dl, D10, D2, D3, D4, D5, D6, D7, D8, D9, E1 ,E10,E2, E3, E4, E5, E6, E7, ESand E9werereceivedonApril 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/Chemlcal Methods, SW-846, online versions EPA methods 40 CFR Parts '136 and 141EPA60012-78-054 methods NDEP Mining Methods 40 CFR Part 50, Appendices B, J, L, O and FEM EQL-0310-189 lO 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 el5,*ilti"";"i,"3ito,.r,"n," r Ve r 4 o XSA/SSSA 9 Methods of Analysis Part2,1982 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: Page 1 ol 2 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 34 of 139 ilce*ntyttat Pace Analytical 1673 Terra Avenue Sheridan, WY 8280'1 Definitions Reporting Limit Qualifiers Value exceeds Maximum Contaminant Level Check MSA specifications Analyte detected in the associated Method Blank Calculated Value Report limit raised due to dilution Value above quantitation range Analyzed at Pace Gillette, WY laboratory Holding times for preparation or analysis exceeded Analyte detected below quantitation limits Analyzed by another laboratory Value exceeds Monthly Ave or MCL or is less than LCL Sample analyzed outside of compliance requirements Not Detected at the Reporting Limit Outside the Range of Dilutions Sample preserved in lab at time of receipt RPD outside accepted recovery limits Spike Recovery outside accepted recovery limits Analyte below method detection limit Matrix Effect ph: (307) 672-8945 Date: 411612024 RL A B C D E G H J L M N ND o e S U X Page 2 of 2 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 35 of 139 n' FaceAnalyttul Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 o CLIENT: Project: COC: Sample Analysis Report Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 SHOOTARING CMP-UT AQ ID ,14169 2ND QTR Date Reported: 411612024 Report lD: 52404146001 Work Order: 52404146 Date Received:. 411012024 Sampler: RAG/SAG Lab lD: 52404146-00'l Client Sample lD: C6 Collection Date: 41712024 12:08:00 PM Matrix: Solid Anal)rses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411112024 09 33 WN EPA 1150.5140 Lab lD: 52404146-002 Client Sample lD: C6 DUP Collection Date: 417 12024 12:08:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411112424 09 58 WN EPA 115 Lab lD: 52404146-003 Client Sample lD: C7 Collection Datez 417 12024 12:07 :00 PM Matrix: Solid nalyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 18.3 pCi/m2-sec 0411112024 10:"13 WN EPA 1,I 505 Lab lD: 52404146-004 Client Sample lD: C8 Collection Qalq 417 12024 12:07 :00 PM Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 21 2 pCi/m2-sec 0411112024 '10 25 WN EPA 1,1 5 Lab lD: 52404'146-005 Client Sample lD: C9 Collection Qalg 41712024 12:06:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411112024 10:37 WN EPA,I 15 Lab lD: 52404146-006 Client Sample lD: C10 Collection Date: 41712024 12:06:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411112024 10:49 WNnq2.9 These results apply only to the samples tested. Paoe 1 of 5 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15, 2024 - Page 36 of 1 39 EPA ,1 15 Qcentytca Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 o CLIEN Sample Analysis Report T: Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UT AQ lD 14169 2ND QTR COC: Date Reported: 411612024 Report lD: 52404146001 Work Order: 52404146 Date Received: 411012024 Sampler: RAG/SAG Lab lD: Client Sample lD: D1 s2404146-007 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411112024 'l 1:29 WN EPA 11513 8 0 5 Lab lD: S2404146-008 Collection Q6lsi 41712024 12:10:00 PM Client Sample lD: D2 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411112024 11:45 WN EPA I 15135 05 Lab ID: 52404146-009 Collection Date: 4171202412:09:00 PM Ctient Sample lD: D3 Matrix: Solid Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411112024 13:21 WN EPA 1159.9 0.5 Lab lD: 52404146-010 Collection Date: 41712024 12:09:00 PM Client Sample lD: D4 Matrix: Solid Anal)rses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411112024 13:33 WN EPA 11512.9 0.5 Lab tD: 52404146-011 Collection Date: 4t712024'12:08:00 PM Client Sample lD: D5 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411112024 13:57 WN EPA 11513.9 0.5 Lab lD: 52404146-012 Collection Date: 41712024 12:0800 PM Client Sample lD: D6 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411112024 '14:08 WN EPA'1 1592 0.5 These results apply only to the samples tested. Paoe 2 of 5 Anfield Resources Holdins corp - shootarligji?%y l;?l?i|3i,:rr.24 Radon Flux MeasurementReport Qcenaytrcar Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 o CLIENT: Project: Sample Analysis Report Anfield Resources 3346 W. Guadalupe Rd. Apache Junclion, AZ 85210 SHOOTARING CMP-UT AQ ID 14169 2ND QTR Date Reported: 411612024 Report lD: 5240414600'1 Work Order: 52404146 Date Received: 411012024 Lab lD: 52404146-013 Client Sample lD: D7 Collection Date: 417 12024 12:07 :Q0 PM Matrix: Solid Analyses Result RL Qual Units Date Analyed/lnit Method Radon Flux Radon-222 12.0 pCi/m2-sec 0411112024 14:30 WN EPA 11505 Lab lD: 52404146-014 Client Sample lD: D8 Collection Date: 417 12024 12:07 :00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411112024 14:21 WN EPA 115 Lab lD: 52404146-015 Client Sample lD: Dg Collection Qalq 417 12024'1 2:06:00 PM Matrix: Solid lllses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411112024 14:58 WN EPA 115051.0 Lab lD: 52404146-016 Client Sample lD: D10 Collection Datez 41712024 12:06:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411112024 15:50 WN EPA 115055.7 Lab lD: 52404146-017 Client Sample !D: El Collection Date: 417 12024 12:11 :00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411212024 10:55 WN EPA ,1 150.56.9 Lab lD: 52404146-018 Client Sample lD: E2 Collection l2lgl 417 12Q24 12:10:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411212024 11:07 WN These results apply only to the samples tested. Paoe 3 of 5 ent Report- Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Repo November 15,2024 - Paqe 38 of 139 Anfield Resources Holding Corp November 15,2024 - Page 38 of 139 EPA 115 il* ntyt a Pace Anal,tical 1673 Terra Avenue Sheridan, WY 82801 Sample Analysis Report : Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UT AQ lD 14169 2ND QTR COC: ph: (307) 672-8945 o CLIENT Date Reported: 411612024 Report lD: 52404146001 Work Order: 52404146 Date Received: 4l1Ql2O24 Sampler: RAG/SAG Lab lD: Client Sample lD: E3 s2404't46-019 Collection Qsfs; 417 12024 1 2:09:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 60 0.5 pCi/m2-sec 0411212024 11:18 WN EPA 115 Lab f D: 52404146-020 Collection Qale 41712024 12:09:00 PM Ctient Sample lD: E4 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411212024 11:30 WN EPA 1153.7 05 Lab lD: 52404146-021 Collectaon Date: 41712024 12:09:00 PM Client Sample lD: E5 Matrix: Solid Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 3.8 05 pCi/m2-sec 0411212024 11:57 WN EPA 115 Lab tD: 52404146-022 Collection D.afe 41712024 12:08:00 PM Client Sample lD: EO Matrix: Solid Anal)rses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 73 0.5 pCi/m2-sec 0411212024 12:54 WN EPA 115 Lab lD: 52404146-023 Cotlection Datez 41712024 12:07:00 PM Glient Sample lD: E7 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 5.4 0.5 pCi/m2-sec 0411212024 13:06 WN EPA 1 15 Lab lD: 52404146-024 Collection Date: 41712024 12:07:00 PM Glient Sample lD: E8 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411212024 13:18 WN EPA l15 These results apply only to the samples tested. Paoe 4 of 5 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux MeasurementReport November 15,2024 - Page 39 of '139 115 05 QceAnatyticat Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 o CL Sample Analysis Report IENT: AnfieldResources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 SHOOTARING CMP-UT AQ ID 14169 2ND QTR Date Reported: 411612024 Report lD: 52404146001 Work Order: 52404146 Date Received: 411012024 Sampler: RAG/SAG Project: COC: Lab lD: 52404146-025 Client Sample lD: Eg Collection Date: Matrix: 4t71202412:06:00 PM Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 07 pCi/m2-sec 0411212024 13.30 WN EPA 1 150.5 Lab lD: 52404146-026 Client Sample lD: E10 Collection Date: 41712024 12:06:00 PM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 04112t2024 13:42 WN EPA 11505 Lab lD: 52404146-027 Client Sample lD: BLANK B-1 Collection Date: Matrix: Solid Result RL Qual Units Date Analyed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411212024 13:56 WN EPA 115 Lab lD: 52404146-028 Client Sample lD: BLANK B-2 Collection Date: Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411212024 14:08 WN EPA 11505ND Lab lD: 52404146-029 Client Sample lD: BLANK B-3 Collection Date: Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411212024 14:23 WN EPA 115 Lab lD: 52404146-030 Client Sample lD: BLANK B-4 Collection Date: Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0411212024 14:36 WNND These results apply only to the samples tested. Paoe 5 of 5 - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15, 2024 - Page 40 of '1 39 Anfield Resources Holding Corp EPA 115 {)/ FaceAmlyttcal Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 ANALYTICAL QC SUMMARY REPORT CLIENT: Anfield Resources Work Order: 52404146 Project: SHOOTARING CMP-UT AQ lD 14169 2ND QTR Date: 411612Q24 Report lD: 52404146001 Units: pCi/m2-secRadon Flux Sample Type MBLK MB START (04h1124 09.21\ RunNo: 220020 Anatyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 ND oq MB END (04111124 16:50) RunNo: 220020 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 ND 15 MB START (04112124 10.23) RunNo 220020 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 ND 30 MB END (04112124 15.15) RunNo: 220020 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 7.3 Sample Type LCSIRadon Flux Units: pCi/m2-sec STD LOW START (04/11124 08:01) RunNo:220020 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 102 90 - 110 STD LOW END (04/11/24 17:03) RunNo:220020 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 106 90 -"r 10 STD LOW START (04/12124 08 10) RunNo:220020 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 90 - 110 STD LOW END (04112124 15.37) RunNo: 220020 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 393 Sample Type LCS2 0.5 387 102 Units: pCi/m2-sec 90 -'110 Radon Flux STD HIGH START (04/11/24 09 08) RunNo:220020 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 351 0 05 3870 90.6 90- 1'10 STD HIGH END (04/1 1/24 16:34) RunNo: 220020 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 3590 0.5 3870 927 90 - 110 STD HIGH START (04/12124 09:44) RunNo: 220020 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Redon-222 35'10 0.5 3870 90.8 90- 110 STD HIGH END (04112124 15:02) RunNo: 220020 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 4080 0.5 3870 105 90- 110 Anfield Resources Holdins Corp. - Shootarffi":iq%Y,i-r?f"i1,sir#24 Radon Flux Measurement Report Page 1 of 2 ilce natwu, Pace Analvtical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 ANALYTICAL QC SUMMARY REPORT CLTENT: Anfield Resources Work Order: 52404146 Project: SHOOTARING CMP-UT AQ lD 14169 2ND QTR Date: 411612024 Report lD: 52404146001 Units: pCi/m2-secRadon Flux Sample Type DUP S2404146-001ADUP (0411112409.45) RunNo:220020 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 14.2 0.5 14 0 0.949 ''t 0 S2404146-010ADUP (04t11124 13:45) RunNo:220020 Analyte Resull RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 13 6 0.5 12 9 5.55 S2404146-020ADUP (04112124 11.43) RunNo:220020 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 35 0.5 37 4.40 S2404146-030ADUP (04h2124 14:49) RunNo:220020 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 ND 0,5 ND 10 Anfield Resources Holdins corp. - Shootarilffig%ll,i-r.Jl""H3P,, arr.24 Radon Flux Measurement Report Page 2 of 2 o(E > Jo , l o, (osoo) .=ao(Ef (/ )0- losozU)Yz)c0siFIFttLzo(- J oLIJFE" r- \o- t" r l tozZoLU(r )oo) ooooE'60)o)o xo,o,Eooo(E o(EooU.9oooooJ E0,oq,oo(E3o(,a oUJt=o[l JuIDo0)= ooFU'o06ooooo ar063oJ.Jgo oooooooot 6@ *(f )P r.- 6NENS r.- P3 \rzlN{Jdu)tulut)ull)\IoN\I(/ )vD :tr@tfc'a6oofcoooo "tooUJtooFo:)o!Ioz plooEo=Cooo6EcIocooaoIEcocoE-oo6oooIIEF q)a_ooa)at4o-oq) iiEa) !oU)q Ic. .0)(ocoEO .-UJ I,J Joo_z'=E=o ) C\(o ! l E' g o_ o_ (..o,c€CoOJ()c.ao-E o *c oO ozJtoJG, IUIo tFaox.(t(otaoFl(LOozE.F:ca Oto.r .oBNFz' uJ .otl xo o o(E Doc ot, ]EY. r oLcO;EElo(o - oIcA (E A ad . tNoNst t\ \iNoc!(,t\ ooOoooo()O)oooxUJooJ(g6l ooo6oo(!C) j(EdI$ iooooooGoE'oooxo) o,oOJ Eoorlogq,ooJ zo 5E (L O >L<=O7 UJo S)s\I5Js po)E id e r B od Y o o ) -o a 9 = E B UJ L O oUJJo-Ea IJ J=FuJFo q)oo(!o) tr oz(9z6JoJ.otuotfooultroJlr JIL oE lI J <JEl t Eq(g -, ^ o .^ LL j x' ! o- 6U ) 6 IL L I I *O D s * t eoOB <f , J^ {J [q : )(' -,1la- , a_ir\{ _J\\- Jo ) c0 ) (E ( 9 o< ==!CLOo, p +r 6 too-oEcoEofa(!0)=xfTLEo!(Ut-tNFe CI r E (o o 5+pS@3 =N -o6Nao orob cD o .E EEE66oZsU)cioCD -Eorooo5ooq)upo,Ec "lo)l (,o- lr JFozoll l t!o(,50culFtt l=Iou0cIuolf lt-EEIoc t!I&,szotaI=t!x=t!=oooc , dt lDae=.!,ctFfEEocAJJ=zo2I(9=GooIAolJtr l (J9<.zoF6oJBco(J ,z6o3taUJEfolr l tr lEagzFztuJ(J o. 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I I >t i u :H =H SE = r -N <f E zo N an(tq(, ro.10-o dloto moto {I6o o^lo0 ohOcoo I(ro Vtoo\o I I I 6R Eg > < r d -N SU z. o No (r 1(2c9o ($6s0 tDoTDo d)9.@o ooCDo do6o vloI FI6s Ib0 I I a I I I I Fzul t!(,zo.=ta0cUJFolDc, ac(natNoN zd -9 * FE a Yo €(9 (n(9 oF{I A. fooF{(9 F{ N (} t- st I lnI -zsco -zsco vzso -z36 F{IoDoGO5 .\ laC)oEs mIcDo65 Trfoo5 or r <) 2E3 C.' ts{ qI aa t(\ ,Gl q+ s\ry sFC( shGI (6N s6 \{ th\ \!t I_oz(, Iez1. , Io2u tez(J (.) L1= \,I c{I ooI zoc{r c,I oI I oI tdclI a!o NIto fn ao Y@ ao Nto rnIo Yo oo-4) tc0)Ec)fo(go=xftrCoE'GtINPo or s (o o Iesg , it f l =N -o6Ner l orob cD - o .E EE9 oooZ !acioOo) .E!oIoo)Ifoootr=oEE DC#_Title: ENV-FRM-SHRT-0033 v02-Condition Upon Receipt Form Terra Lab Ef f ective Dale : 4 I 2 4 I 2023 Survey Meter# Model224'l-2: SN 182119 pH strip lot # HC446507 Thermometer SN# 220622431 Condition Upon Recelpt (Attach to COC) Samnls-Becalnt 1 Number of ice chests/packages received: Note as 'OTC' ff samples ere received over tha counter, unp*kagad 2 Temperature of obleln an additional CUR Temps Observed ("C): Temps Corrected ("C): Accaptabte ts: 0,1" to 10'C for Bacteria: and 0.1' to 6"C fq most othet weter psameters. Samprgs may not havo hed adaquate time to cool followlng collection. lndlcala ROI (Recelved on lco) fot iced semples recalved on tl7€ same day es semded, tn addition to temryeture et receipt. @\:s Yes @ @ @b ZnAcat H2501 HN03 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? I Do samples require subcontracted analyses? lf 'Yes", which Upe of subcontracting is required? General Sample Receipt, Veritication, Login, Labeling & Distribution completed by Oiscreoancv ooeqmo (use back of sheet for notes oa dlscrepancles) Anv items llsted above with a resoonse of "No" or do not meet soeclfrcatlons must be resotved. Person Contacted: lnitiated By:Dater/Time: Problem: Resolution: 4 Ror? yes 3 Emission rate of samples for radiochemical analyses < O.SmR/hr? 4 COC Number (lf applicable): 5 Do the number of bottle agree with the COC? 6 Were the samples received intacl? fio boken boffres, leaks, etc.) 7 Were the sample custody seals intact? 8 ls the COC properly completed, legible, and signed? SamoleVetlncilion. labalino&Dlstrlb 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: Flnal pH (if added in lab): Total Metals Totel Motals No N/A N/A N/A@ No No No No No No No _ Diss Metals _ Nutrienl _ Cyanlde _ Sulfide _ Phonol _SDWA Rads _ Diss Metals _ Nutriont _ Cyanlds - Sulfide _ Phonol _ SDWA Rads Preservatlve/Lot# HN03 Flftored and presorved ln melals H:SOq _ NaOH Date/Tlme Added: Filtered and proserued in matals @ @ Certified {x,2179 Yes No @NoYes No Yes @ Customer-Speclfled (inttiats)'. AI SetID Method of Contact: _ Phone: Email: euattrax lO: Zto&d Resources Holdins Corp - Snoffi6ffiryBHl,-Vr?rE$3&&onoro Radon Flux Measurement Report page 1 of 1 FrrAnatyticar=o' PACE ANALYTICAL 1673 T.rr. Avenu. shrrld.n, WY 82801 ph: (307) 672-8945 t xi (3071 672-6053 Radon Flux Canned Collection Media Average welght of cans: 74.4 g Average weight of cans and Charcoal:255 g;;"'&r--rZList ol cans shipped:1A thru 35A Date shlpped: 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 Area Counts Count Time Date Date Can #<1 00 Seconds CPM Checked Prepoed 9a 10 600 1.0 06.13t24 06.13124 164 9 600 0.9 06.13124 06.13124 174 4 600 0.4 06.13124 06.13124 31A 4 600 0.4 06.13124 06.13124 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report tntor-ltlbuntaln Labontortae, lnc. November 15,2024 - Page 47 of 139 Page t of , NORTH WEST J I H G F E D c B A SOUTH WEST 10 Aruneuo ResouRces Holotttc Conp. Sxoorantruc CaruYott Mtt-t- UT Atn QuaurY lD 14169 TatutNcs Ceul Gnto 2024 RADott Fuux Resulrs GRID KEY RRooru Flux nesulr tn i/m2-sec NORTH EAST J I H G F E D c B A SOUTH EAST10 DATA SET SuIvUURNY MINIMUM oCi/m2-sec MAXIMUM oCi/m2-sec SrRnoaRo DEVIATION pCi/mz-sec AVERAGE pCi/m2-sec ArH-2s 4rH -24 4rH -23 4rH -22 4rH _21 4rH_20 4TH -'18 41H -18 4rH -17 4rH -16 4TH-1 5 4TH -14 4rH -13 41N -12 41d -11 4rH-10 4rH -8 4rH -8 4rd -7 4TH .6 4rH-5 41A -4 4rH -3 4rN -2 4rH -1 3Ro - 25 3RD - 24 3Ro - 23 3Ro - 22 3Ro - 2l 3Ro - 20 DUP 26 3R0 - lg 3Ro - 1g 3RD - 17 3RD - 16 3RD - 15 3RD - 14 3RD - 13 3RD - 12 3RD - 11 3Ro - 10 3RD.9 3RD-8 3Ro-7 3RD-6 3RD-S i 3ao-4 3RD-3 3Ro-2 3RD-1 2ND-25 33 zNa-24 0.7 2ND-23 1 1.5 zND-22 54 zNo-21 7.3 zNo-20 3.8 2ND-1 9 3.t 2ND-18 ZNo_17 6.0 5.4 2ND-1 6 6.9 2ND-1 5 57 2ND-1 4 1.0 2ND- 1 3 14.9 zNo-12 12.0 2ND-'1 1 9.2 2ND-1 0 13.9 2ND-9 12.9 2ND-8 99 zND-7 13.5 2ND-6 13.8 2ND-5 2.9 zNo-4 4.3 2ND-3 21.2 2No-2 18.3 2ND-1 DUP 26 14.0114 7 lsr-25 16.5 1sI -24 21.5 1sr - 23 15.5 1sr -22 14.5 1sr - 21 14.8 1sr-20 10.0 1sr - 19 21.7 1sr - 18 59.2 1sr - '17 26.9 1sr - 16 22.4 1sr - 15 17.8 1sr - 14 26.0 1sr - 13 16.7 1sr - '12 16.4 1sr - 11 22.3 lsr - 10 7.6 1sr-9 22.2 1sr-8 196 1sr - 7 126 1ST-6 12.3 jsr - 5 17.3 1sr-4 305 1ST - 3 19.0 1sr - 2 16.9 1sr - 1 DUP 26 18.9/18.0 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15, 2024 - Page 48 of 1 39 {)' y'aceAnaMical Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 Anfield Resources SHOOTARING CMP-UT AQ ID 14169 3RD QTR s2407248 ph: (307) 672-8945 CLIENT: Project: Lab Order: Date: 711712024 CASE NARRATIVE Report lD:.52407248001 Entire Report Reviewed by: Wade Nieuwsma, Laboratory Operations Manager Samples BLANK B-1, BLANK B-2, BLANK B-3, BLANK B-4, Fl ,F10,F2, F3, F4, F5, F6, F7, F8, F9, G1, G10, G10 DUP, G2, G3, G4, G5, G6, G7, G8, G9, Hl, 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 lO 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 -DA Handbook 60 Jt Srr"y Laooratory Manuar Ver 4.0 ISA/SSSA 9 Methods of Analysis Pan2, 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. Page 1 of 2 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 49 of 1 39 Qcenavtar Pace Analytical 1673 Terra Avenue Sheridan. WY 8280'1 ph: (307) 672-894s Date: 711712024 Definitions RL Reporting Limit A B C D E G H J L M N ND o e S U x Qualifiers Value exceeds Maximum Contaminant Level Check MSA specifications Analyte detected in the associated Method Blank Calculated Value Report limit raised due to dilution Value above quantitation range Analyzed at Pace Gillette, WY laboratory Holding times for preparation or analysis exceeded Analyte detected below quantitation limits Analyzed by another laboratory Value exceeds Monthly Ave or MCL or is less than LCL Sample analyzed outside of compliance requirements Not Detected at the Reporting Limit Outside the Range of Dilutions Sample preserved in lab at time of receipt RPD outside accepted recovery limits Spike Recovery outside accepted recovery limits Analyte below method detection limit Matrix Effect o Page 2 ol 2 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 50 of 139 *e*ntrta, Pace Anal,tical 1673 Terra Avenue Sheridan, WY 82801 Sample Analysis Report ENT: Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UT AQ lD 14169 3RD QTR COC: ph: (307) 672-8945 o cLt Date Reported: 7 117 12024 Report lD:. 52407248001 Work Order: 52407248 Date Received: 7 11512024 Sampler: RAG/SAG Lab lD: Client Sample lD: F1 s2407248-001 Collection Date: 711312024 8:54:00 AM Matrix: Solid Anallrses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711612024 09:32 WN EPA 1 1510.1 0 5 Lab lD: 52407248-002 Coltection Date: 711312024 8:54:00 AM Client Sample lD: FZ Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711612024 09 56 WN EPA 1 159.4 05 Lab f D: 52407248-003 Collection Date: 711312024 8:55:00 AM Client Sample lD: F3 Matrix: Solid Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711612024 '10:16 WN EPA 115170 05 Lab lD: 52407248-004 Collection Date: 711312024 8:55:00 AM Client Sample lD: F4 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711612024 1 0:28 WN EPA 1 1 514 8 0.5 Lab lD: 52407248-005 Collection Date: 711312024 8:56:00 AM Client Sample lD: F5 Matrix: Solid Anal)rses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711612024 10:42 WN EPA 11521.3 0 5 Lab lD: 52407248-006 Collection Date; 7t1312024 8:56:00 AM Client Sample lD: FO Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711612024 10:54 WN EPA 1157.3 05 These results apply only to the samples testea. Paoe 1 of 5 Anfield Resources Holding Corp - Shootaring Canyon Mill - Site 14169 -2024 Radon Flux MeasurementReport November 15, 2024 - Page 51 of 1 39 {) Faceknlyttul Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 o cLt Sample Analysis Report ENT: Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Date Reported: 7 I17 12024 Report lD: 52407248001 Work Order: 52407248 Date Received:. 7 11512024 Sampler: RAG/SAG Project: SHOOTARING CMP-UT AQ lD 14'169 3RD QTR COC: Lab lD: Client Sample lD: F7 s2407248-007 Gollection Qalgi 711312024 8:57:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pci/m2-sec 0711612024 11:06 WN EPA 1'1515 6 0.5 Lab lD: 52407248-008 Collection Date: 711312024 8:57:00 AM Client Sample lD: F8 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pOi/m2-sec 0711612024 11 19 WN EPA 11550 05 Lab lD: 52407248-009 Collection Date: 711312024 8:58:00 AM Client Sample lD: Fg Matrix: Solid Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 07 11612024 'l 1 :3 1 WN EPA 1 1 537 0.5 Lab lD: 52407248-010 Collection Oatei 711312024 8:59:00 AM Client Sample lD: F10 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711612024 11:43 WN EPA 11584 0.5 Lab lD: 52407248-011 Collection Date: 711312024 9:00:00 AM Client Sample lD: G1 Matrix: Solid Analyses Result RL Qual Units Date Anallzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711612024 12 06 WN EPA 1 1 518 0 0.5 Lab lD: 52407248-012 Gollection Date: 711312024 9:00:00 AM Client Sample lD: G2 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711612024 12.17 WN EPA'1 '15200 0s These results apply only to the samples tested. Paoe 2 of 5 Anfield Resources Holdins corp - shootalifliiE%Y,i-r?1""11,3i#24 Radon Flux MeasurementReport QcenaWut Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 o CLIENT Project: COC: Sample Analysis Report : Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 SHOOTARING CMP-UT AQ ID 14169 3RD QTR Date Reported: 7 I17 12024 Report lD: 52407248001 Work Order: 52407248 Date Received: 7 11512024 Sampler: RAG/SAG Lab ]D: 52407248-013 Client Sample lD: G3 Collection Date: Matrix: 711312024 9:01:00 AM Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711612024 12:29 WN EPA 115 Lab lD: 52407248-014 Client Sample lD: G4 Collection Q6le: 711312024 9:01:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 15 6 pCi/m2-sec 0711612024'12:41 WN EPA 1,1 505 Lab lD: 52407248-015 Client Sample lD: G5 Collection p6lsl 711312024 9:02:00 AM Matrix: Solid lyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711612024 12:53 WN EPA 115 Lab lD: 52407248-016 Client Sample lD: G6 Collection Date: 711312024 9:02:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 14.2 pCi/m2-sec 0711612024 13:04 WN EPA 115 Lab lD: 52407248-017 Client Sample lD: G7 Collection Qsle 711312024 9:02:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711612024 '1 3: 16 WN EPA 115 Lab lD: 52407248-018 Client Sample lD: G8 Collection D.ale: 711312024 9:03:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711612024 13:29 WN0550 These results apply only to the samples tested. - Shootaring Canyon Mill - Site 14169 - 2u24Radon Flux nr"".rr".3n?*?$n' U November 15,2024 - Page 53 of'139Anfield Resources Holding Corp EPA 115 Qce nu,ca, Pace Anal,tical 1673 Tena Avenue Sheridan, WY 82801 Sample Analysis Report IENT: AnfieldResources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UT AQ lD 14169 3RD QTR COC: ph: (307) 672-8945 o CL Date Reported: 7 117 12024 Report lD: 52407248001 Work Order: 52407248 Date Received: 7 11512024 Sampler: RAG/SAG Lab lD: Client Sample lD: G9 s2407248-019 Collection Date: 711312024 9:03:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711612024 'l 3 40 WN EPA 1 1534 05 Lab tD: 52407248-020 Collection Date: 711312024 9:03:00 AM Client Sample lD: G10 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pci/m2-sec 0711612024 13:52 WN EPA 1 '1 5116 05 Lab lD: 3,2407248-021 Collection Date: 711312024 9:03:00 AM Client Sample tD: G10 DUP Matrix: Solid Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 93 0.5 pCi/m2-sec 0711612024 14:16 WN EPA 115 Lab lD: 52407248-022 Collection Date: 711312024 8:56:00 AM Client Sample lD: H1 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 16 3 0 5 pCi/m2-sec 0711612024 14:28 WN EPA'l 15 Lab lD: 52407248-023 Collection Q7lgl 711312024 8:57:00 AM Client Sample lD: H2 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 17.1 0 5 pCi/m2-sec 0711612024 1441 WN EPA I'15 Lab ]D: 52407248-024 Collection Date: 711312024 8:05:00 AM Client Sample lD: H3 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711612024 14:52 WN EPA 11516.4 0 5 These results apply only to the samples tested. Paoe 4 of 5 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2A24 Radon Flux MeasurementReport November 15, 2024 - Page 54 of 1 39 lenaytiur Pace Analytical 1673 Terra Avenue Sheridan. WY 82801 ph: (307) 672-8945 o CLIENT Project: coc: Sample Analysis Report : Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 SHOOTARING CMP-UT AQ ID 14169 3RD QTR Date Reported: 7 I 17 12024 Report lD: 52407248001 Work Order: 52407248 Date Received 7 11512024 Sampler: RAG/SAG Lab lD: 52407248-025 Client Sample lD: H4 Collection Date: Matrix: 711312024 9:00:00 AM Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 12.7 pCi/m2-sec 0711612024 15:05 WN EPA 1,15 Lab lD: 52407248-026 Client Sample lD: H5 Collection Date: 711312024 8:10:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 13.9 pCi/m2-sec 0711612024 15:17 WN EPA 11505 Lab lD: 52407248-027 Client Sample lD: BLANK B-'t Gollection Date: Matrix: Solid lyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 07116t2024 15:29 WN EPA 115 Lab lD: 52407248-028 Client Sample lD: BLANK B-2 Collection Date: Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCiim2-sec 07t16t2024 15 43 WN EPA 115 Lab lD: 52407248-029 Glient Sample lD: BLANK B-3 Collection Date: Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 07116t2024'15:54 WN EPA ,1 15 Lab lD: 52407248-030 Client Sample lD: BLANK B-4 Collection Date: Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711612024 16:06 WN These results apply only to the samples tested. 0.5ND Paoe 5 of 5 - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 55 of 139 Anfield Resources Holding Corp EPA 115 {)' FaceAnalytrcal o CLIENT: Work Order: Project: Radon Flux Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 ANALYTICAL QC SUMMARY REPORT Anfield Resources s2407248 SHOOTARING CMP-UTAQ ID 14169 3RD QTR Date:711712024 Report lD: 5240724800'1 Units: pCr/m2-secSample Type MBLK MB START (O7116t24 09.20) Analyte RunNo. 222502 Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 ND 30 MB END (07116124 16.41) RunNo: 222502 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 ND Sample Type LCSI JU Radon Flux pCi/m2-sec RADSTD-16-1 START (07/16/24 07 58) RunNo:222502 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 989 90-110 RADSTD-'16-1 END (07/16/24 16:54) RunNo: 222502 Anatyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 390 Sample Type LCS2 05 387 '101 Units: pCi/m2-sec 90 - 110 Radon Flux RADSTD-16-2 START (07/16/24 09:03) Analyte RunNo: 222502 Result RL Spike Ref Samp %REC % Rec Limits Qual j Radon-222 391 0 05 101 90- 110 RADSTD-16-2 END (07/16/24 16:29) Analyte RunNo. 222502 Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 3580 Sample Type DUP 0.5 3870 Units: pCi/m2-sec 92.5 90 - 110 Radon Flux S2407248-001ADUP (07116124 0944) RunNo: 222502 Anatyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 9.9 05 I01 1.87 10 52407248-01 OADUP (07 I 16t24 I 1 :54) Analyte RunNo. 222502 Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 7.9 0.5 8.4 6.0'1 10 52407248-020ADUP (07116124 1404) RunNo 222502 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 11.2 05 11 6 3.03 10 52407 248-030 ADUP (07 I 1 6/24 1 6: 1 7 | Analyte RunNo 222502 Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 ND 0.5 ND 10 Anfield Resources Holdins Corp. - Shootariigjiq%U !-r.Jl""l{|ir#24 Radon Flux Measurement Report Page 1 of 1 I. 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Shlrld.h, wY 82101 ph: (307) 672-8945 ,.x: (307) 572-@53 Radon Flux Canned Collection Media Average weight of cans: 74.4 g Average welght of cans and Charcoal: 255 g List of cans shlpped: 1A thru SSe ,-/67 ?' /7 -2/ fu) Date shlpped:911112024 The canisters and activated charcoalare cool, capped and sealed. A minimum of Detector: HPGe baked at 1 10 degrees Celsius for at least 24 hours, allowed to 10 percent are randomly checked lor radon belore they are shipped. Area Counte Count Time Date Date Can #<100 Seconds CPM Checked Prepped 9a 2 600 0.2 9t6t2024 91412024 154 4 600 0.4 91612024 9t4t2024 204 0 600 0.0 91612024 91412024 34A 11 600 1.1 91612024 91412024 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report tnter-lytountatn Laboratodg, lnc. November 15' 2024 - Page 60 of 139 page I ot l Arurreuo Resounces Houotxc ConP. SHootaRtruc CnNvot't Mtt-t- UT Atn QueltrY !D 14169 Tautttcs Celt- Gnto 2024 Rnooru Flux Resulrs GRID KEY RRoorl Flux nesulr tru pCi/m2-sec NORTH WEST J I H G F E D c B A SOUTH WEST 10 NORTH EAST J I H G F E D C B A SOUTH EAST 41F-25 I 4rH -24 4rd -23 4rH -21 4rH-20 DUP 26 l4r, -18 I a-r-ra I 4rH -17 4rH -16 4rH-1 5 4TH -6 3Ro - 20 DUP 2 11.6/9 3 3RD - 19 34 3RD-18 50 iI 3RD-10 8.4 3Ro-9 3.7 3RD-8 5.0 2ND-25 3.3 2ND-20 3.8 2No- 1 g 3.7 2ND-1 g | 6.0 2"o-fi Is4 I 2ND-1 6 69 2No-6 13.8 1sr - 11 22.3 lsr - 'lo 7.6 1sr - 9 22.2 10 DATA SET SUTUTVIANY STANDARD DEVIATION 41H -22 4rH -14 4rH -13 41H -12 4r*-11 4rH- 1 o 4rH -8 4rH -8 4rH -7 4rH-5 ArN -4 4rH -3 4rH -z 4rH -1 3RD - 25 13.9 3Ro - 24 127 3Ro - 23 16.4 3Ro -22 17 1 3Ro - 21 16.3 3Ro-17 74 3RD - 16 14.2 3RD-15 169 3Ro - 14 15.6 3RD - 13 39.9 3Ro - 12 200 3RD - 11 18.0 3RD-7 15.6 3RD-6 7.3 3RD-5 21.3 3Ro-4 i 3RD-314.8 17.0 3RD_2 9.4 3RD-1 10.1 2No-24 0.7 2No-23 11.5 2No-22 5.4 zNo-21 7.3 2ND-1 5 5.7 zND-14 1.0 2ND-1 3 14.9 zNo-12 12.0 2ND-1'l 9.2 2No-1 0 13.9 2ND-9 12.9 2ND-8 99 2No-7 13.5 2ND-5 29 zNo-4 4.3 2N0-3 21.2 zNo-2 18.3 2ND.1 DUP 26 14.0114.7 lsr - 25 16.5 1sr -24 21.5 1sr - 23 15.5 1sr -22 14.5 1sr - 21 148 1sr - 20 10.0 1sr - 1g 21.7 1sr - 18 59.2 1sr - 17 26.9 1sr- 16 22.4 1sr - 15 17.8 lsr - 14 26.0 1sr - 13 16.7 1sr - 12 16.4 1sr-8 19.6 lsr - 7 126 1sr-6 12.3 lsr_5 1sr_417.3 30.5 1sr - 3 19.0 1sr -2 16.9 'lsr - 1 DUP 26 18.9/18.0 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site '14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 61 of 139 DC#_T'rtle: ENV-FRM-SHRT-0033 v02_Condition Upon Receipt Form Tena Lab Eff ective O ale: 4 I 24 I 2023 Survey Meter # Model 2241-2; SN 182119 pH strip lot # HC446507 Thermometer SN# 220622431 Condition Uoon Receiot (Attach to COC) Samnls-REcelpl f1 Number of ice chests/packages received: L ROI? Note as 'OTC' ff semplas erc receivod over lhe caunloL unpackaged No No No An ccn l,1J l"> ak! 0-l * t-v /-.rUt-t -rl?, -'& )n L r^&l<J(laL:,: ), /tpP Iv/, Aq^ trr,r, 1 7o1rS7 _ Phenol SDWA Rads Date/Tlme Added: Filtued and preservod in metels Certlfled J t'71os, o NaOH ZnAc€t HSo. HN03 5 6 7 8 VOA vials have <6mm headspace? Were all analyses within holding time at the time of receipt? Have rush or projec{ due dates been checked and accepted? Do samples require subcontracted analyses? lf Yes", which type of subcontracting is reguired? No No No @ Customer-Specified (initlals)'. Al YesG Yes Yes GD @ General Sample Receipt, Verification, Login, Labeling & Distribution completed by Sel lD: Oiscreoancv Oocumo (use back of sheet for nofes on discrepancles) Anv ftems llsted above with a resoonse of "No" or do not meet sreclflcatlons must be resolved. Person Contacted:Method of Contact: _ Phone: Email: Problem: Resolution: lnitiated By- Date/Time: Yes 8 Yes Yes G @"e* Final pH (if added in lab):Preservatlve/Lot# _ Totial Metals _ Diss Metals _ Nutriont - C)Enlde Sullide HNOs Filterad and yeserved ln metels HrSO. 2 Temperature of morc lhan I Temps Observed Temps Corrected ('C Acceptable k: 0.1'to 10"C lor Bacteda; aN 0.1' lo 8'C fu most other water puemalorc. Samples may not heve hed adoquate tlme to cool following colloction. lndicalo ROI (Rec€lved on lce) fo( iced sdmples recotved on lho samo day as sampled, ln addltton to lemperclure et recelpt 3 Emission rate of samples for radiochemical analyses < O.SmFUhr? 4 COC Number (lf applicable): 5 Do the number of bottles agree with the COC? 6 Were the samples received inlact? 1no oroxen bolt/es, teaks, etc.) 7 Were the sample custody seals intact? 8 ls the COC properly completed, legible, and signed? Samote Vermcatlo '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? No No No No @ N/A N/A @ \et 4 Sample Preservation: pH at Receipt: _ Total Metals - Diss Metals _ Nutrient _ Cpnide _ Sulfide - Phenol _SDWA Rads euattrax tD: 7bgu}ld Resources Hotdins corp - shommfrBmHl,-+l:tebg8&,t'noro Radon Flux Measurement Report page 1 of 1 {)' FaceAnalytiul Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 CLIENT: Anfield Resorrces Project: SHOOTARING CMP-UT AQ lD 14169 4TH QTR Lab Order: 52410070 Date:. 101712024 CASE NARRATIVE Report lD: S2410070001 Entire Report Reviewed by: Dr'/L Wade Nieuwsma, Laboratory Operations Manager Samples BLANK B-1, BLANK B-2, BLANK B-3, BLANK B-4, H10, H6, H7, H8, H9, 11, 110, 12,13,14,15, 16, 17, 18, 19, 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 lO 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 ^-DA Handbook 60 Jr Survey LaDoralory Manuat ver 4.0 XStuSSSA 9 Methods of Analysis Parl2, 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: Page 1 of 2 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 63 of 139 t**r*Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 Definitions Reporting Limit Qualifiers Value exceeds Maximum Contaminant Level Check MSA specifi cations Analyte detected in the associated Method Blank Calculated Value Report limit raised due to dilution Value above quantitation range Analyzed at Pace Gillette, WY laboratory Holding times for preparation or analysis exceeded Analyte detected below quantitation limits Analyzed by another laboratory Value exceeds Monthly Ave or MCL or is less than LCL Sample analyzed outside of compliance requirements Not Detected at the Reporting Limit Outside the Range of Dilutions Sample preserved in lab at time of receipt RPD outside accepted recovery limits Spike Recovery outside accepted recovery limits Analyte below method detection limit Matrix Effect ph: (307) 672-8945 Date: 101712024 RL A B C D E L, H J L M N ND o e S U x Page 2 ol 2 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 -2024 Radon Flux Measurement Report November 15, 2024 - Page 64 of 1 39 Qcentytur Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 o CLIENT Project: COC: Sample Analysis Report : Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Date Reported: Report lD: Work Order: Date Received: Sampler: 10nt2024 s241 0070001 s241 0070 10t3t2024 GAG/SAG SHOOTARING CMP.UT AO ID 14169 4TH QTR Lab lD: 52410070-001 Client Sample lD: Ho Collection Date: Matrix: 101212024 7:47:00 AM Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 101041202409:27WN EPA 1,15 Lab lD: 52410070-002 Client Sample lD: H7 Coltection Date: 101212024 7:46:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 101041202409:50WN EPA 1156.8 Lab lD: 52410070-003 Client Sample lD: HB Matrix: Solid Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1010412024'10:02WN EPA 1.1 50.5 Lab lD: 52410070-004 Client Sample lD: H9 Collection Date: 101212024 7:46:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 20.0 pCi/m2-sec 1010412024 10:14 WN EPA 11505 Lab lD: 52410070-005 Client Sample lD: H10 Collection Date: 101212024 7:46:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCiim2-sec 1010412024 10:25 WN EPA .1 15055.0 Lab lD: 52410070-006 Client Sample lD: l1 Collection Date: 1Q1212024 7:49:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 19 3 pCi/m2-sec 101041202410:37WN EPA 1 15 These results apply only to the samples tested. Paoe 1 of 5 Anfield Resources Holdins corp - shootariig":i?%U l-r.Jl?Ll,3i1-#24 Radon Flux MeasurementReport Qcenawcat Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph (307) 672-8945 o cLt Sample Analysis Report ENT: Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 SHOOTARING CMP.UT AQ ID 14169 4TH QTR Date Reported: 1017 12024 Report lD: S241 007000'l Work Order: 52410070 Date Received: 101312024 Sampler: GAG/SAG Project: COC: Lab lD: 52410070-007 Client Sample lD: 12 Collection Date: Matrix: 101212024 7:48:00 AM Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1010412024 10:48 WN EPA 11505179 Lab lD: 52410070-008 Client Sample lD: 13 Collection Date: 101212024 7:48:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 I9 0 pCi/m2-sec 1010412024 11:00 WN EPA 1 15 Lab lD: 52410070-009 Client Sample lD: 14 Collection Date: 101212024 7:48:00 AM Matrix: Solid lyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1010412024 11:11 WN EPA1150512.1 Lab lD: 52410070-010 Client Sample lD: 15 Collection Qalsi 101212024 7 :47 :00 AM Matrix: Solid Anal)rses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 103 pCi/m2-sec 1010412024 11:23 WN EPA 1.15 Lab lD: 52410070-0'11 Client Sample lD: 16 Collection Date: 101212024 7 :47 :00 AM Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 1010412024 1"1:47 WN EPA 1,150561 Lab lD: 52410070-012 Client Sample lD: 17 Collection Date: 101212024 7 :47 :00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1010412024 11:59 WN05 These results apply only to the samples tted. Paoe 2 of 5 Anfleld Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux MeasurementReport November 15,2024 - Page 66 of 139 EPA 1 15 QcennaWur Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 o CLIENT Project: COC: Sample Analysis Report : Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 SHOOTARING CMP-UT AQ ID 14169 4TH QTR Date Reported: 1017 12024 Report lD: S2410070001 Work Order: 52410070 Date Received: 101312024 Sampler: GAG/SAG Lab lD: 52410070-0'13 Client Sample lD: 18 Collection Date: 101212024 7:46:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyed/lnit Method Radon Flux Radon-222 108 pCi/m2-sec 1010412024 12:1 2 WN EPA ,I 150.5 Lab lD: 524'10070-014 Client Sample lD: 19 Collection Date: 101212024 7:46:00 AM Matrix: Solid Anal)rses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 239 pCi/m2-sec 1010412024 12:24 WN EPA 115 Lab lD: 52410070-015 Client Sample lD: 110 Collection Date: 101212024 7 :46:00 AM Matrix: Solid nalyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 272 pCi/m2-sec 101041202412 36 WN EPA ,1 150.5 Lab lD: 52410070-0'16 Client Sample lD: J'l Colfection Date: 101212024 7:50:00 AM Matrix: Solid Anal)rses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 142 05 pCi/m2-sec 1010412024 12 48 WN EPA 1,1 5 Lab lD: 52410070-017 Client Sample lD: J2 Collection Date: 101212024 7:49:00 AM Matrix: Solid Anallrses Result RL Qual Units Date Anallzed/lnit Method Radon Flux Radon-222 24.4 EPA 1150.5 pCi/m2-sec 1010412024 12:59 WN Lab lD: 52410070-018 Client Sample !D: J3 Collection Date: 101212024 7:48:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 1010412024 1 3:1 1 WN These results apply only to the samples tested. Paoe 3 of 5 Anfield Resources Holding corp - shootarfifl"?it1%Yl;?l?11,3i,,Jrr24 Radon Flux MeasurementReport EPA 115 n/ .Facefunlyttal Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 o CLIEN Sample Analysis Report T: Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, M 85210 SHOOTARING CMP-UTAQ ID 14169 4TH QTR Date Reported: 1017 12024 Report lD: S2410070001 Work Order: S2410070 Date Received: 101312024 Sampler: GAG/SAG Project: COC: Lab lD: 52410070-019 Client Sample lD: J4 Collection Date: 101212024 7:48:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1010412024 13:23 WN EPA 1154.9 Lab lD: 52410070-020 Client Sample lD: J5 Collection Date: 101212024 7 :47 :00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pci/m2-sec 1010412024 13:34 WN EPA 115 Lab lD: 52410070-021 Client Sample lD: J5 DUP Collection Date: 101212024 7 :47 :00 AM Matrix: Solid nalyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1010412024 13.58 WN EPA 11516 Lab lD: 52410070-022 Client Sample lD: J6 Collection Date: 101212024 7 :47 :00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1010412024 14:10 WN EPA115 Lab lD: 52410070-023 Client Sample lD: J7 Collection Date: 101212024 7 :47 :00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pci/m2-sec 1010412024 14:22 WN EPA 115 Lab lD: 52410070-024 Client Sample lD: JB Collection Date: 101212024 7:40:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 05 pci/m2-sec 1010412024 14:34 WN These results apply only to the samples iesteO. Paoe 4 of 5 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux MeasurementReport November 15,2024 - Page 68 of 139 3.2 EPA 115 f)/ .y'aceAnatfitcal Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 o CL!ENT Sample Analysis Report : Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UT AQ lD 14169 4TH QTR COC: Date Reported: 1017 12024 Report lD: S2410070001 Work Order: 52410070 Date Received: 101312024 Sampler: GAG/SAG Lab tD: 52410070-025 Collection Date: 101212024 7:46:00 AM Client Sample lD: Jg Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1010412024 14:46 WN EPA 11520.3 0.5 Lab lD: 52410070-026 Collection Date: 101212024 7:46:00 AM Glient Sample lD: J10 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 18.2 0 5 pCi/m2-sec 1010412024 14:57 WN EPA 115 Lab lD: 52410070-027 Collection Date: Client Sample lD: BLANK B-1 Matrix: Solid Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCr/m2-sec 1010412024 15:09 WN EPA 'l 15ND 0,5 Lab lD: 52410070-028 Collection Date: Client Sample lD: BLANK B-2 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 ND 0,5 pCi/m2-sec 1010412024 15:2'1 WN EPA "l 'l5 Lab lD: 52410070-029 Collection Date: Client Sample lD: BLANK B-3 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 ND 0,5 pCi/m2-sec 1010412024 15:33 WN EPA 115 Lab lD: S2410070-030 Collection Date: Client Sample lD: BLANK B-4 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 These results apply only to the samples tested. Paoe 5 of 5 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux MeasurementReporl November 15,2024 - Page 69 of 139 ND 0,5 pCi/m2-sec 1010412024 15:45 WN EPA '1 'l 5 f)/ /aceAnatvttcat Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 ANALYTICAL QC SUMMARY REPORT CLIENT: Anfield Resources Work Order: S24'1 0070 Project: SHOOTARING CMP-UT AQ lD 14169 4TH QTR Date: Report lD: Units pCi/Can 10t7 t2024 s241 0070001 Radon Flux Sample Type MBLX MB START (10104t24 09.15) RunNo: 224906 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 60ND MB END (10104124 16.33) RunNo: 224906 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 ND Sample Type LCS'l 60 Radon Flux Units pCi/Can STD LOW START (10/04/2407:50) RunNo:224906 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 387 99.2 90 - 110 STD LOW END (10/04/24 16:45) RunNo:224906 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 362 Sample Type LC52 387 Units: pCi/Can 935 90-'r 10 Radon Flux STD HIGH START (10/04/24 09:02) RunNo: 224906 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 391 0 0.5 90 - 110 STD HIGH END (10/04/24 16:20) RunNo: 224906 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 3820 Sample Type DUP 3870 98.7 Units: pCi/m2-sec 0.5 11090- Radon Flux S2410070-001ADUP (10/04/24 09:39) RunNo:224906 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 10 S2410070-010ADUP (10104124 11 35) RunNo:224906 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 102 10.3 1 62 10 S2410070-020AOUP (10104124 13 46\ RunNo: 224906 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 0 406 10 S2410070-030ADUP (10/04/24 15:56) RunNo 224906 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 10ND Anfield Resources Holdins corp. - Shootar[Bjiq%Y,i-r."t""rrt3i,,#24 Radon Flux Measurement Report Page 1 of 1 foo-oEcoEIfo(!o==tLcoEotsNo^NF J Or s (o o :f , .s 8, (, , $=x -o6Nau ) oFob cD - o ,= EEEE6oz Eacio(_ )o) ,=.toTooolooot=oC oO)Qa- o)qoogoFoa.O)oO)oqu)q)ooq,oqboa. o)b(/ ) (Dc4boEQoo(ubq)Eo() NJ T\ CO \ 8N L EN E N EB 8R 8 N\ 06 5 = 5 \\ 6> iS i ^. f r E b N gF , -6 . $ L oE { o- PL \ L (s I \N 8o z N\ E c (D \\ - - - \ - =. = ( ! zi i . o S FE uJ LU C) E83 = \L l- C n O c E; ; fl ;E S E T q a = F o: 3 =€ S q sH I$ - b > 9 6S *e E E EB $ E Ei E 3 E E S cu g '= t E H ns t t E E€ E q xE s - t i bl E E =6 ,i u E Eo E E 'f i bE g o u, Eq P C (U C\ O) o- O c- > o. = IU o= rr UJ (- t $+, flFoo ot,G+,a Stalc ol'I lah St'l:NL l:ll .1. t OX (,;t)r'(,t'nor I)lrll)Rl- llFNl)l:ltSON I -rcu!c nu nt ( i rst'arnor Department of Health lluman Services I R,\('\' S. CiITt BI:R l .xt:ctt!tve I )trt. tur Nr\ I l: ( llt:CKI:l l'S l)epun'l)rL,ctor DR MICIII,l.l.l: Ilol \'1A\N lixecut tve .\ lcd tc ul I) t re c ntr I)AVII) I,I'I'VAK l)apktr' [)tlecl0- NA tL WtNt'l:tts l.)epul l)rrartor ffi EPA Numben WY00005 Attachment to Certificate Number: WY000052023-12 Pagc I or'7 Pace Analytical Services, LLC - Sheridan, WY Start Date Expires AB Program/Matrix: CWA (Non Potable Water) Method ASTM D7237-10 Free cyanide Method Eichrom method Uranium in Water lsotopic uranium Method EPA 1664A 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 02t25t22 Year:2014 02t25t22 Revision: 1 Year: 1999 02t01t15 Method Code: 30032930 03t31t24 UT Method Code:60002768 03131t24 UT Method Code: 10127807 03t31t24 UT Method Code: 10261606 03t31t24 UT Method Code: 10263806 03t31t24 UT Method Code: 10013806 03t31t24 UT 03t31t24 UT 03t31t24 UT aa31t24 UT 03131t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper lron Lead Lithium Magnesium Manganese Molybdenum Nickel Phosphorus, total Potassium Scandium Selenium Silver Sodium Strontium 02t01t15 03/01/18 Revision: 4.4 Year: 1994 02101t15 02101115 02t01t15 02t01t15 02t01t15 02t01t15 02t01t15 02t01115 02t01t15 02101t15 02t01115 02t01t15 o2to1t15 02t01t15 02ta1n5 02101t15 02t01t15 02t01t15 02t01t15 02t01t15 03t13t23 02t01t15 02t01115 02t01t15 02t01t15 195 Nortlr 1950 Wcst. Salt Lake Cit1,. Utah 841 l6 tc-lcphone (801 ) 965-2400 I lax (801 ) 538-41 5 I i ernail: labinrprovementi?utah.gov Anfield Resources Holdins canrhFhffiffiL?qllqr#lHleEIqL"mA(,$adon Flux Measurement Report EPA Numben VN00U)5 Attachment to Certificate Number: V1IY000052O23-12 Pace Analytical Services, LLC - Sheridan, WY Start Date Expircs Page 2 of 7 AB Program/Matrlxz CWA (Non Potable Water) A SulfurU rn"tti* Thorium Tin Titanium Vanadium Zinc Method EPA 200.7 Silica as SiO2 Method EPA 200.8 Gallium Method EPA 200.8 Aluminum Antimony Arsenic Barium Beryllium Bismuth Cadmium Chromium Cobalt Copper Lead 02n5t22 02t01t15 02n5t22 oaunS laun5 0?,0il15 0u01115 Revision:5 Year: 1998 03/01/18 03,13n3 Revision: 5.4 Year: 1994 02t01t15 02101115 02t01t15 02t01t15 ou01t15 o3l'13123 o2t01t15 ozlo'U15 02t01t15 0u01115 ouo1t15 02to1t15 021011'15 02to1t15 02t01115 02t01115 02t01t15 o2lo1115 02t01t15 o2t01t15 o2l0'1115 oaun5 Revision: 5.5 Year: 1998 02101115 Revlsion:3 Year: 1994 o2lo1t15 Revlslon: 2.{ Year: 1993 02t01115 021011'15 oaun5 oaun5 oao1tI5 oaun5 oao1n5 oaoil'15 Revision: I Year: 1993 om:h* Selenium Silver Strontium Thallium Tin Uranium Vanadium Zinc Method EPA 200.8 Titanium Method EPA245.1 Mercury Method EPA 300.0 Nibate plus Nitrite as N Bromide Chloride Fluoride Nifate as N Nibite as N Orthophosphate as P Sulfate fhod EPA 335.4 195 North 1950 West, Salt Lake City, Utah 841l6 telephone (801) 965-2400 I fax (801) 538-4151 lemail: labimprovement@utah.gov 03t31t24 UT 03t31124 UT 03131t24 UT 03131t24 UT o3t31t24 UT 03t31t24 UT 03t31t24 UT Method Code: 1001/m03 03t31n4 UT Method Code: 10014401 03t31t24 UT Method Code: 10014805 03t31t24 UT 03t31t24 UT 03t31t24 UT 03131t24 UT 03t31t24 UT o3t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t3'v24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t3'U24 UT 03t31n4 UT 03t31t24 UT 03t31n4 UT o3tyn4 uT 03t31t24 UT 03131t24 UT 03131n4 UT 03131124 UT Method Code: 10014809 03131t24 UT Method Code:10036609 03t31t24 UT Method Code: 10053200 o3t31a4 UT 03t31t24 UT 03t31t24 UT 03131t24 UT 03131t24 UT 03131t24 UT 03t31t24 UT 03t31t24 UT Method Gode:10061402 Anfield Resources Holdins cqrEhFhfr:l[,*99?lTr#]HF0ffiSffiSadon Flux Measurement Report EPA Number: WY00(N5 Attachment to Gertificate Number: WY000052023-12 Pace Analytical Services, LLC - Sheridan, WY Start Date Expins Page 3 of 7 Program/Matrix: CWA (Non Pobble Water) ^ Totalcvanide GrroJ e'pa sso.t 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 EPA6020 Uranium Total(mass) Method GA Tech Ra-2261228 Radium-226 Radium-228 Method HACH 8131 Sulfide Method OIA 1677-09 Available Cyanide Method SM l8rlgthED 7500-Ra B Totalradium Method SM 2310 B-2O11 Acidity, as CaCO3 Method SM 2320 8-1997 A AlkaliniN as CaCO3lGnoo sM ztzo E-zotl Alkalinity as CaCO3 Method SM 2340 8-1997 Totalhardness as CaCO3 Method SM 2340 8-2011 Totalhardness as CaCO3 Method SM 2510 B-2O11 Conductivi$ Method SM 2540 C-1997 Residue-filterable (TDS) Method SlUl2540 C-2015 Residue-fi lterable (TDS) Method SM 2540 D-1997 Residue-nonfi lterable (TSS) Method SM 2540 D-2015 Residue-nonfilterable (TSS) Method SM 4500-F- C-2011 Fluoride Method SM 4500-H+ 8-2011 pH Method SM 5310 B-2O14 Totalorganic carbon Jnou sM 7r1o B (cPc) 03113t23 Year:2010 05t24t22 021011'15 Year: 2011 05t24122 Revision:20th ED Year: 1997 02t01t15 Year: 20ll laun2 Year: 1997 oaol22 Year: 2011 oaolns Year:20f1 0uo1t15 Revision:20th ED Year: 1997 02t01t15 Year:2015 02101122 Revision:20th ED Year: 1997 o2to1t15 Year:2015 02101122 Year:2011 02101t15 Year:2011 02t01t15 Yearz 2014 05t24t22 Revision:20th ED oaaul5 Revision:2 Year:1993 02t01115 Revislon:2 Year: 1993 oaunS Revision:2 Year: 1993 02t01t15 02t01t15 02t01t15 Year: (9/94) 03t13t23 Revision:1.2 Year:2004 o2n5t22 02125122 o3131t24 UT Method Code: 10063602 03t31t24 UT Mothod Code: {0065404 o3t31t24 UT Method Code: 10067604 03t31t24 UT 03t31124 UT 03t31t24 UT Method Code: 10156000 03t31t24 UT Method Gode:90016005 03t31124 UT 03t31124 UT Method Code:60003783 03t31t24 UT Method Code:60031450 03t31124 UT Method Code:20033801 03t31t24 UT Method Code:20044615 03t31t24 UT Method Gode: 20045209 03t31t24 UT Method Gode:2004!i618 03t31124 UT Method Code:20046600 03t31t24 UT Method Code:20046611 03t3'v24 UT Method Code:20048617 03t31t24 UT Method Code:20050004 03131n4 UT Method Code:20050435 03t31t24 UT Method Code: 20050800 03t31t24 UT Method Code: 20051223 03t31t24 UT Method Code:20102414 03t31124 UT Method Code:20105220 03t31t24 UT Method Code:20137831 03131t24 UT Method Code:20156609 195 North 1950 West, Salt Lake City, Utah E4l l6 telephone (801) 965-2400 | fax (801) 538-4151 | email: labimprovement@utah.gov Anfield Resources Holding cuphdrtttsr#gOhilyofntiber$iledfrlffuatlft{fiadon Flux Measurement Report EPA Number: llW0NNS Pace Analytical Services, Attachment to Certificate Number: LLC - Sheridan, \A/Y wYo00052023-12 Start Date Expires Page 4 of 7 AB ProgramlMatrix: CWA (Non Pobble Water) O3:::;3,:" Method SM 7500-Ra B (GPC)-200r Totalradium 02t01115 02101t15 Revision: 22nd ED Year: 2001 o2to1t22 03t31t24 UT $t31n4 UT Method Code: 2O17lJd16 03t31t24 UT 195 North 1950 West, Salt Lake City, Utah 841 l6 telephone (801) 965-2400 | fax (801 ) 538-415 I I email: labimprovement@utah.gov Anfield Resources Holding adon Flux Measurement Report EPA Numbec llN00U)5 Pace Analytical Services, Attachment to Certificate Number: LLC - Sheridan, \A/Y vvY000052023-12 Start Dato Expirce Pagc 5 of 7 AB Program/Matrix: RCRA (Non Potable Water) OH:r,=:i053e17 P' 33 EMSL LV Method EPAl3ll Toxicity Charactedstic Leach ing Procedu re (TC LP) Method EPA 1312 Synthetlc Preclpitation Leachlng Procedure Synthetic Precipitation Leach ing Procedu re (SPLP ) lf,ethod EPA 3020A 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 Cobalt Copper lron offifl,Manganese Molybdenum Nickel Selenium Silica as SiO2 Silver Strontium Sulfur Thallium Thorium Tin Titanium Vanadium Zinc Method EPA6020 Aluminum Antimony Arsenic Barium Beryllium Cadmium Chromium ! couatt 03t13t23 Revlsion:0 Year: 1992 o2n5t22 Revision:0 Year: 199f 02n5t22 Revlsion: 1 Year:1992 03/01/18 Year: (9186) 03t13t23 Year: (11100) oao1n5 02101t15 02to1115gaut15 o2to1t15 o2l0'1115 02101t15 o2lo'1115 0210'1115 02t01t15 1aut15 0uo1t15 oao1t15 oz01t15 0u011't5 laun5 0?,01115 03/01/18 02t01t15 02t0'U't5 02t25t22 o2to1t15 0z25r22 02101t15 02101t15 0?,oil15 o2to1t15 Revislon:0 Year: 1994 02t01t15 02t01115 02t01t15 oaun5 02101115 02t01t15 0210'1115 02t01t15 Method Code:10251806 03t31t24 UT Method Code: 10118806 03t31n4 UT Method Code: 10119003 0313'U24 UT Method Code: 101344/l,4 03t3'v24 UT Method Code: 10155201 03t31t24 UT Method Gode: 10155803 03t31t24 UT 03t31n4 UT 03131t24 UT 03131n4 UT o3B1n4 UT 03131t24 UT 03t31t24 UT 03t31t24 UT 03131t24 UT 03t31t24 UT 03t31t24 UT 03131t24 UT 03t31t24 UT 03131t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 0431t24 UT 03t31t24 UT 03t31t24 UT 03131t24 UT o3t3'U24 UT 03/31n4 UT $/31N4 UT o3B1n4 UT Method Code: 10156204 03t31124 UT 03t31D4 UT 03t31t24 UT 03t31124 UT 03t31t24 UT 03t31t24 UT 0381n4 UT 03t31t24 UT 195 North 1950 West, Salt Lake City, Utah 841l6 telephone (801 ) 965-2400 | fax (801 ) 538-415 I I email: labimprovement@utah.gov Anfield Resources Hordins cqEhFftftHHfgt$T#B,;TB[f"drt1fffiR3il5aoon Flux Measurement Report EPA Numberz WYilXN5 Attachment to Certificate Number: V1fY000052023-12 Pace Analytical Services, LLC - Sheridan, WY Start Date Exptrca Pagc 6 of7 AB Program/Matrix: RCFIA (Non Potable Water) o[$Y':::; 02t01t't5 02101115 02t01t15 02t01t15 02t01t15 0u01115 02t01115gaun5 02t01t15 02101115 gaun5 laun5 Year: (l/98) 0ao1n2 0?,01/22 02101122 0uo1l22 oaou22 02t01122 02t01t22 02101122 02t01115 02101122 02101t22 o2to1t22 02t01t22 o2lo1l22 02t01122 02t01t22 02101122 02101t22 02lun2 02101122 o2lo1t22 Revlslon: { Year:1994 02101122 Year:1978 0z25t22 Revision:21st ED 0?,25t22 Oi,:X.n"."." Molybdenum Nickel Selenium Silver Strontium Thallium Tin Titanium Vanadium Zinc Method EPA6020A Aluminum Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Selenium Silver Strontium Thallium Tin Titanium Vanadium Zinc Method EPA7470A Mercury Method EPN600I2-78I054 Sec 3.2.2 Paste pH pH Method SM 7500-Ra B (GPC) Radium-226 195 North 1950 West, Salt Lake City, Utah 841 I 6 telephone (801 ) 965-2400 | fax (801 ) 538415 I I email: labimprovement@utah.gov 03t31t24 UT 03t31t24 UT 03t31t24 UT o3t31n4 UT 03t31t24 UT o3t31n4 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT Method Code: 10156408 03t31n4 UT 03t31n4 UT 03t3'U24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31n4 UT 03t31t24 UT 03t31124 UT 03t31124 UT 03t31t24 UT 03t31124 UT 03t31t24 UT 03t31t24 UT 03131t24 UT 03131t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT Method Code: 10165807 03t31t24 UT Method Code:10289222 03t31t24 UT Method Code:2O17O4/l,s 03131t24 UT Anfield Resources Holding Flux Measurement Report Program/Matrlx: RCRA (Solid & Hazardous Mabrtal Ithod ASTM D5744-13 Year:2013 Method Code:30032281 Upr"p"rrtion/Extraction 0A25n2 O3lg1t24 UT Method ASTM E2242-13 Year:2013 Method Code:30045524 Meteoric water mobility procedure 02n6l22 03131124 UT Method EPA l31l Revislon: 0 Year: 1992 Method Code: 10118806 Toxicity Characteristic Leaching Procedure (TCLP) 02101115 03131n4 UT Method EPA 1312 Synthetic Precipltation Leaching Revision:0 Year: 1994 Method Gode: 10119003 Procedure Synthetic PrecipitraUon Leaching Procedure (SPLP) 02125122 03131124 UT Method EPA 30508 Revlsion: 2 Year:1996 Method Code: 10135601 Acid Digestion of Solids 03/01/18 0313'1124 UT Method EPA 6010 Year: (9/86) Method Code: 10155201 Antimony 03113123 03131124 UT Beryllium 03113123 03131124 UT Nickel 03113123 03131124 UT Method EPA6010C Year: (11/00) Method Code:10155803 Arsenic 02101115 03131124 UTBarium 02101115 03131124 UT Cadmium 02101115 03131124 UT Chromium 0AUn5 $131124 UT Lead 0AUn5 03131t24 UT Selenium 02101115 03131124 UT Silver 0UO1l15 03131124 UTo;;Ht, Z1:;!;1 21i,,11:;1 UI Method EPA7470 Year: (9/86) Method Code: 10165603 Mercury 02101115 03131124 UT Method EPA7471B Year: (1/98) Method Code: 10166402 Mercury 02101122 03131124 UT Method EPA 901.1 Method Code: 10308608 Gamma Emitters 02n5122 03131124 UT Method EPA 9081 Revision: 0 Year: 1986 Method Code: 10203404 Cation exchange capacity 02125122 03131124 UT Method ASTM IN22-63 (07) Year: 1963 Method Code: 30030854 Grain size (sieving) 02125122 03131124 UT Method SM 7500-Ra B (GPC) Revision:2lst ED Method Code: 20170405Radium-226 02125122 03131124 UT The Utah Envlronmental Laboratory Certficdon Program (ELCP) encourage cllentr and data usol! to verlly the most currsnt cettlllcauon letter for the authorlzed method. The analytos by mothod whlch a laboratory lg authorlzed to perform at any given Ume will bo those lndlcated ln tho most rocent cartitlcate lettor. The most rccent co.tlf,catlon lettgr 8upor8ed6 all prevlous certification or authorlzatlon letters. lt la tfie certlfied laboratoq/c ,ecponslblllty to revlew thle Iettsr for dlscrspancler. The certilled laboratory muat documert any dlscrepanclee ln thio lotter and send notice to this buEau within 15 dayg of rucelpt Thls certfcate letter wlll be recalled ln tho event your laboratoq/s coillficatlon ls r€voked. EPA Numben WY00(n5 Attachment to Certificate Number: VI/Y000052O23-12 PageTorT Pace Analytical Services, LLC - Sheridan, WY Start Date Expires AB 195 North 1950 West, Salt Lake City, Utah 841 l6 telephone (801) 965-2400 | fax (801 ) 538-415 I I email: labimprovement@utah.gov Anfield Resources Holding cqrEhShR8lil*glnq$filtHF"d8ffiQ?dEroon Flux Measurement Report Eoo-oE.coE0)fooo=xltrco!otr$No_NH J o) E (o o5pp& sr 3 =s2N-o6Naoo-ob cD - o .E Ehe ir ooZ Eaciooo) ,EE'oIoefoa{DE.Eo)Ec oLO)o\a-Q)o=a.go'i\oa.O)o .O ) (I ) x o) : (E . = LC ) (E q z. o o L( n (! - L!or o Ou ) s' oo- 6 a_o)EqoU) ho)t>a)\oo(obooo lT$Cc $. 3 co Ac ij g\t (or I$NoN lr ) Lo ro oN o oo o oN o O\ OB; = u0) ! OC UL L( U I 3o z Ec O Ln * =. = ( E zi i . 9 !F (I x o ) Lr J LJ J o E8B ' = \- t- C n O c C' E X O F qg g q sH ii Ea s I f i : E * t i I + I t fi XE s- i 5 Es E E s# s. E E, q E E -' "t bE g G 6 EE . $ E rt r C\ O) o- o o o. = S O= LL I. U (- i o#t :)%o .f - , (U+ta Strtr of I tah sl,l.N( l:ll .t ( ( )\ ( irttt,ut<tr I)trlt)ltl I Il:\DtrttSO\ L t c tt I ! tttt n I ( i ttt L' r n r tr Department of Health Humtn Services IR.,\( \' S (iRt'lll:R /'rrt tilrr., I tlrcL lt)t' \\ll(lllrLKl l't.' l \ t lr I ) t r.'.' lot I)l{ \ll( lllrl.l.l: ll()lr\l \\\ l.-.\.'L utt|c \Ie JtcuI I)rrer'tor l).\v'il) l.l tv,\K lLpul l)treclor \,,\ I I] \\ Ii\ I I:ItS l)cpul l)tracror EPA Number WY00005 Attachment to Gertificate Number: WY000052024-16 Pace Analytical Services, LLC - Sheridan, WY start Date Expires [)ase I rtl'9 Program/Matrix: CWA (Non Potable Water) Method ASTM D7237-10 Free cyanide Method Eichrom method Uranium in Water lsotopic uranium Method EPA 1664A Hexane Extractable Material (HEM) Method EPA 1654A (SGT-HEM) Hexane Extractable Material- Silica Gel Treated (HEM-SGT) Method EPA200.2 Acid Digestion of Aqueous samples and Extracts for Total Metals ethod EPA 200.7 02t25t22 Year:2014 02t25t22 Revision: 1 Year: 1999 02101115 02t01t15 Revision: 2.8 Year: '1989 03/0'l /'1 I Revision: 4.4 Year: 1994 02101115 02101t15 02t41t15 02t01115 02t01t15 02t01t15 02t01t15 02101115 02t01t15 02t01t15 02t01t15 02101115 02t01t15 02t01t15 02t01t15 02t01115 02t41t15 02t01115 02t01t15 02t01t15 03t13t23 02t01t15 02t01t15 02t01t15 02t01t15 195 North I 950 West. Salt [-ake Citv. Utah 8+ I l6 b!,idfi il'1, i biis{Ef.db -lr$l,H}aw,+t?rlti4}[rCht]rtk"po,t Method Code: 30032930 03131t25 UT Method Code: 60002768 03t31t25 UT Method Code: 10127807 03131t25 UT Method Code: 10261606 03t31125 UT Method Code: 10013204 03t31t25 UT Method Code: 10013806 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03131t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03131t25 UT Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper lron Lead Lithium Magnesium Manganese Molybdenum Nickel Phosphorus, total Potassium Scandium Selenrum Silver Sodium Strontium Er 09jh4 ideds9O i0ldflH on s EPA Number: WY00(D5 Pace Analytical Services, LLC Attachment to Certificate Number: - Sheridan, \A/Y wYo00052024-16 Start Date Expires Page 2 of9 AB Method EPA 200.7 Silica as SiO2 Method EPA 200.8 Gallium Method EPA 200.8 Aluminum Antimony Arsenic Barium Beryllium Bismuth Cadmium Chromium Cobalt Copper Lead gram/Matrix: CWA (Non Potable Water) Sulfur Thallium Thorium Tin Titanium Vanadium Zinc 02t25122 02,01t15 02t25t22 02t01t15 02t01t15 02t01t15 02101115 Revision:5 Year: 1998 03/01/18 03t13123 Revision: 5.4 Year: 1994 02t01t15 02t01t15 02t01115 o2to1l15 02101115 03t13t23 02141115 02t01t15 02101115 o2t01t15 02t01t15 02t01t15 02t01t15 02t01t15 02t01t15 02t01t15 02t01t15 02101115 02t0'v15 02101115 02t01t15 02101115 Revision: 5.5 Year: 1998 02101115 Revision: 3 Year: 1994 02t01t15 Revision: 2.1 Year: 1993 02101115 02t01115 02101t15 o2lo1t15 02t01t15 02t01t15 02t01t15 02t01t15 Revision: 1 Year: 1993 03131t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03131t25 UT Method Code: 10014003 03t31t25 UT Method Code: 1001'1401 03t31t25 UT Method Code: 10014605 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03131t25 UT 03131t25 UT 03t31t25 UT 03t31t25 UT 03131t25 UT 03t31t25 UT 03131t2s uT 03t31125 UT 03t31t25 UT 03t31125 UT 03131t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t3'U25 UT 03t31t25 UT Method Code: 10014809 03t31t25 UT Method Code: 10036609 03t31t25 UT Method Code: 10053200 03t31t25 UT 03131t25 UT 03t31t25 UT 03t31t25 UT 03t31125 UT 03131t25 UT 03t31t25 UT 03t31t25 UT Method Code: 10061402 Ouiln:::; Nickel Selenium Silver Strontium Thallium Tin Uranium Vanadium Zinc Method EPA 200.8 Titanium Method EPA245.1 Mercury Method EPA 300.0 Nitrate plus Nitrite as N Bromide Chloride Fluoride Nitrate as N Nitrite as N Orthophosphate as P Sulfate 195 North 1950 West, Salt Lake City, Utah 84116 Ithod EPA 335.4 weh: EPA Number: WY00005 Pace Analytical Services, Attachment to Certificate Number: LLC - Sheridan, WY wY000052024-16 Start Date Expires Page 3 of9 ztsrgram/Matrix: CWA (Non Potable Water) !io,r,cyanideMethod EPA 350.1 Ammonia as N Method EPA 351.2 Kjeldahl N itrogen (Total Kjeldahl N itrogen-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-2261228 Radium-226 Radium-228 Method HACH 8131 Sulfide Method OIA 1677{9 Available Cyanide Method SM l8r1gthED 7500-Ra B Totalradium Method SM 2310 8.2011 Acidi$, as CaCO3 ^Jethod SM 2320 8-1997 ! ^,nu,,nrry as uauL.,.) Method SM 2320 8-2011 Alkalini$ as CaCO3 Method SM 2340 8-1997 Total hardness as CaCO3 Method SM 2340 8,-2011 Total hardness as CaCO3 Method Sil2510 8-2011 Conductivity Method SM 2540 C-1997 Resid ue-fi lterable (TDS) Method SM 2540 C-2015 Residue-fi lterable (TDS) Method SM 2540 D-1997 Residue-nonfilterable (TSS) Method SM 2540 D-2015 Residue-nonfi lterable (TSS) Method SM /t500-CN- l-2011 Weak Acid Dissociable Cyanide Method sM 4500-cN- t-2016 Weak Acid Dissociable Cyanide 03113123 Year:2010 05124122 02101t15 Year:2011 05t24t22 Revision: 20th ED Year: 1997 02101115 Year:2011 02t01t22 Year: 1997 02t01t22 Year: 20ll 02101t15 Year:20{1 02t01t15 Revision:20th ED Year: {997 02t01t15 Year:2015 02t01t22 Revision: 20th ED Year: 1997 02101t15 Year:2015 02t01t22 Revision: 2011 01101124 Revision: 23rd Year: 2016 03t06t24 Year: 2011 02t0'U15 Year: 2011 Method SM 4500-F- C-2011 Fluoride thod SM 4500-H+ 8.2011 02t01t15 Revision:2 Year: 1993 02t01t15 Revision:2 Year: 1993 02101115 Revision:2 Year: 1993 02t01t15 02t01115 02t01t15 Year: (9194) 03t13t23 Revision: 1.2 Year: 2004 02125t22 o2t25t22 03t31t25 UT Method Code: 10063602 03t31t25 UT Method Gode: 10065404 03t31t25 UT Method Code: 10067604 03131t25 UT 03t31t25 UT 03t31t25 UT Method Code: 10156000 03t31t25 UT Method Code:90016005 03t31t25 UT 03t31t25 UT Method Code:60003783 03t31t25 UT Method Code:60031450 03131t25 UT Method Code:20033801 03t31t25 UT Method Gode: 20044;615 03t31125 UT Method Code:20045209 03t31t25 UT Method Code: 20045618 03t31t25 UT Method Code:20046600 03t31t25 UT Method Code:20046611 0313'U25 UT Method Code:20048617 03t3'125 UT Method Code:20050004 03t31t25 UT Method Code:20050435 03t31t25 UT Method Code: 20050800 03t3'U25 UT Method Code: 20051223 03t31t25 UT Method Gode:20098026 03t31t25 UT Method Code:20098037 03t31t25 UT Method Code: 20102414 03t31125 UT Method Code: 20105220 195 North 1950 West, Salt Lake City, Utah 84116 n"f releH:enn.6$qJf,ft e#f!ffi flfl*hf if;[Lt*ffigu.iffi 3_ruaxsmrI@+tI€h,EQh"po,t EPA Number: WY00005 Aftachment to Certificate Number: WY000052024-16 Page4ore Pace Analytical Services, LLC - Sheridan, WY Start Date Expires AB gram/Matrix: CWA (Non Potable Water) pH 02t01t15 03t3'125 UT Year: 2014 Method Code: 20137831 05t24t22 0313',U25 UT Revision:20th ED Method Code: 20156609 02t01t15 03t31t25 UT 02t01t15 03t31125 UT Revision: 22ndED Year:2001 Method Code: 20170416 02t01t22 03t31t25 UT ethod SM 5310 8,-2014 Totalorganic carbon Method SM 7110 B (GPC) Gross-alpha Gross-beta Method SM 7500-Ra B (GPC)-2001 Totalradium 195 North 1950 West, Salt Lake City, Utah 841l6 qilf.6,si3ff99JhhT,tf; 9tli,f H-$llb'Ftlft !r?FitrPJ8"'"ql"-'trj@sJahsnh"o"nweh : h[f6lE*iUnh 6r trBtB sfr&fftrotoats on so^fP"l8*98,",.(8. EPA Number: WY00(N5 Pace Analytical Services, Attachment to Gertificate Number: LLC - Sheridan, \A/Y wY0000s2024-16 Stad Date Expires Page 5 of9 gram/Matrix: RCRA (Non Potable Water) hod Eichrom method Uranium in llUater Thorium-230 Method EPA053917 p.33 EMSLLV Thorium-230 Method EPA 1311 Toxici$ Characteristic Leaching Procedu re (TC LP) 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 EPA6010 Phosphorus, total Method EPA 6010C Year: 2014 o8lo1l24 03t13t23 Revision: I Year: 1992 02t25t22 Revision:2 Year: 1994 02t25t22 Revision: 1 Year: 1992 03/01/18 Year: (9/86) 03t13123 Year:2000 02t01t15 02t01115 02101t15 02t01t15 02101115 02t01t15 02101115 42t01t15 02t01t15 02t01t15 02t01t15 02t01t15 02t01t15 02t01t15 o2to1t15 02101115 02101115 03/01/18 02t01t15 02101115 02125122 02101t15 02t25t22 02t01t15 02101115 02t01t15 o2to1t15 Revision: 0 Year: 1994 02t01t15 02101115 02101115 02t01t15 02101t15 02t01t15 Method Code:60002768 03t31125 UT Method Code: 10251806 03t31t25 UT Method Code: 10118806 03t31t25 UT Method Code:10119003 03t31t25 UT Method Code: 10134404 03t31t25 UT Method Code: 10155201 03t31t25 UT Method Code: 10155803 03131t25 UT 03131t25 UT 03131t25 UT 03t31t25 UT 03131t25 UT 03131t25 UT 03t31t25 UT 03t3'v25 UT 03131t25 UT 03t31t25 UT 03t31t25 UT 03131t25 UT 03t31t25 UT 03131t25 UT 03t31t25 UT 03t3'u25 UT 03t31t25 UT 03t31t25 UT 03131t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT o3t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT Method Code: 10156204 03t31125 UT 03t3'U25 UT 03t31t25 UT 03t31t25 UT 03131t25 UT 03t31t25 UT Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Chromium Cobalt Copper lron Lead Lithium Manganese Molybdenum Nickel Selenium Silica as SiO2 Silver Strontium Sulfur Thallium Thorium Tin Titanium Vanadium Zinc Method EPA6020 Aluminum Antimony Arsenic Barium 195 North 1950 West, Salt Lake City, Utah 84116 o3:#ffi o.Ble*sltn.(QeJJ.r,6r"3$3f!ffi [8},}{,ff;[[]ffi[.ff g*txsrmir@ttf,thr&nh"po,t EPA Number: Wl/00005 Pace Analytical Services, LLC Attachment to Certificate Number: - Sheridan, \A/Y vr/Y000052024-',6 Start Date Expires Page 6 of9 Manganese Molybdenum Nickel Selenium Silver Strontium Thallium Tin Titanium Uranium Vanadium Zinc Method EPA6020A Aluminum Antimony Arsenic Barium Beryllium Cadmium Chromium gram/Matrix: RCRA (Non Potable Water) Chromium Cobalt Lead 02101t15 02101115 02t01115 02t01115 02t01115 02101t15 02t01t15 02101115 02t01t15 02t01t15 02t01t15 02t01t15 07108124 02101t15 02101t15 Year: (1/98) 02101122 02t01t22 02101122 o2to1t22 02t01t22 02t01t22 02t01t22 02t01t22 02t0'U15 02t01t22 02t01122 02t01t22 02t01t22 o2to1t22 02t01t22 02t01t22 02101122 02t01t22 02t01t22 02t01t22 02t01t22 Revision:2 Year: 1994 02t01t22 Year: 1978 02t25122 Revision: 21st ED o2t25t22 03t31t25 UT 03t31t25 UT 43t31t25 UT 03t31t25 UT 03t31t25 UT 03131t25 UT 03t3'u25 UT 03t31t25 UT 03t31t25 UT 03131125 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT Method Gode: 10156408 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03131t25 UT 03t31t25 UT 03t3'125 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31125 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t2s uT 03t31t25 UT 03t31tzs uT Method Code: 10165807 03t31t25 UT Method Gode: 10289222 03t31t25 UT Method Code: 20170405 03t31t25 UT 195 North 1950 West, Salt Lake City,utah 841 t6 O8:ffi:, Lead Manganese Molybdenum Nickel Selenium Silver Strontium Thallium Tin Titanium Vanadium Zinc Method EPA7470A Mercury Method EPA/600r2-78/054 Sec 3.2.2 Paste pH pH Method SM 7500-Ra B (GPC) Radium-226 o"tr"ls*epn.[tsJJP,f,%,"S:f ,Jffi f#hffffi t'}ffi[-$fr g.ruawnmm@urtoh&nh"po,t EPA Number: WY00005 Attachment to Certificate Number: WY000052024-16 Pace Analytical Services, LLC - Sheridan, WY Start Date Expires Page 7 of9 AB gram/Matrix= RCRA (Solid & Hazardous Material) hod ASTM D,5744,-13 P reparation/Extraction Method ASTM E2242-13 Meteoric water mobility procedure Method EPA 13ll Toxicity Characteristic Leach ing Procedu re (TC LP) Method EPA 1312 Synthetic Precipitation Leaching Procedure Synthetic Precipitation Leaching Procedure (SPLP) Method EPA30508 Acid Digestion of Solids Method EPA6010 Aluminurn Antimony Beryllium Boron Calcium Cobalt Copper lron Lithium Magnesium Year:2013 02t25t22 Year:2013 02t25t22 Revision: 1 Year: 1992 02t01t15 Revision:2 Year: '1994 02t25t22 Revision: lll Year:'1996 03/01/18 Year: (9/86) 08101t24 03t13123 03t13t23 08t01t24 08t01t24 08t01t24 08t01t24 08t01124 08t01t24 08101124 08t01t24 08t01t24 03t13t23 08101124 08t01124 08t01t24 08101124 08t01t24 08t01t24 08t01t24 08t01t24 03t06t24 Year:2000 o2to1t15 02t01t15 02t01t15 02t01t15 02t01t15 02t01t15 02t01t15 02t25t22 02t25t22 01101t24 Year: 1986 02t01t15 Year: (1/98) Method Code:30032281 03t31t25 UT Method Code:30045524 03t31t25 UT Method Code:10118806 03t31t25 UT Method Code:101{9003 03t31t25 UT Method Gode: 10135601 03t31t25 UT Method Code: 10155201 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03131t25 UT 03t31t25 UT 03131t25 UT 03t31t25 UT 03131t25 UT 03t31t25 UT 03t31t25 UT 03131t25 UT 03t31t25 UT 03t3'U25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT Method Code: 10155803 03t31t25 UT 03t31t25 UT 03131t25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT 03t3'U25 UT 03t31t25 UT 03t31t25 UT 03t31t25 UT Method Code: 10165603 03t31t25 UT Method Gode: 10166402 195 North 1950 West, Salt Lake City, Utah 84116 Manoanese Offil:l""' Potassium Sodium Strontium Thallium Tin Titianium Uranium Vanadium Zinc Method EPA6010C Arsenic Barium Cadmium Chromium Lead Selenium Silver Sulfur Thorium Zinc Method EPA7470 Mercury hod EPA74718 ^^FJs*e5',r,J"8.gJJ"P,f,5d'#jfd;ffifi8$f,"f,fiLs}'m1*[.3flflPls"Yqqffirreut]S,Bnh"oon EPA Numberz WY00U)5 Attachment to Certificate Number: WY000052024-16 Pace Analytical Services, LLC - Sheridan, \A/Y Start Date Expires Page 8 of9 f,:#d;'r;., ."* (sotid & Hazardous Matenat) Gamma Emitters Method EPA 9081 Cation exchange capacity Method ASTM D,f22-63 (07) Grain size (sieving) Method SM 7500-Ra B (GPC) Radium-226 02t01t22 Year: 1980 02t25t22 Revision:0 Year: 1986 02125122 Year: 1963 02t25t22 Revision: 21st ED 02t25t22 03131t25 UT Method Code: 10308608 03t31t25 UT Method Code: 10203404 03t31t25 UT Method Code:30030854 03t31t25 UT Method Code:20170405 03t31t25 UT 195 North 1950 West, Salt Lake City, Utah 841l6 futrfi rfl ilr 5 b ilpm?*U -t2&snr&ysnfinl@$I&hgqh"po,-t Erfffltfl gde&*lidldfl6 on s EPA Number: WY0O(N5 Pace Analytical Services, LLC - Attachment to Certificate Number: Sheridan, WY wY000052024-16 Start Date Expires Page 9 of 9 AB gram/Matrix: SDWA (Potable Water) hod SM 2130 8-2011 Turbidity Yean2O11 Method Code: 20048220 03t01t24 03t31t25 UT Tho Utah Environmental Laboratory C€rtlffcation Program (ELCP) encourages clients and data uaers to verify the most currsnt certlflcation letter for the authorized method. The analytes by method *'hlch a laboratory ig authorlzed to perform at any given tlme wlll be those indicated in the moet recent certiflcate letter. The most recent certlflcatlon letter supercedes all ptevious certlficatlon or authorizatlon letterc. lt ls ths certlfiod laboratory's responslbility to review this lefier for discrcpancles, The certilied laboratory must document any dlscrepancles ln this lettor and eend notice to this burpau within l5 days of receipt. This certificate letter will be r€called in the event your laboratory's certlfication is revoked. 195 North 1950 West, Salt Lake City, Utah 841l6 o^fEl8*SB,f."[8.QlJ P,,9"%3Ao 9J nlg+,ffi I U] fi"fl f l, I- weh: hmordrisrhErrdtsd 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 11S-Monitoring For Radon-222 Emissions Anfield Resources Holding Corp - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15, 2024 - Page 89 of 1 39 ENV-SOP-SHRT-0155, Rev 00 ceAnalytical' ENVIRONMENTAL SCIENCES Document Information DocumentNumber: ENV-SOP-SHRT-0155 Revision: 00 Document Title: Support Equipment Procedure Department(s): wet chemistry, Rad chem, Metats, Mining, euatity Date Information Effective Date: 16 SeP 2020 Notes Document Notes: All Dates and Times are listed in: Central Time Zone Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Reporl November 15,2024 - Page 90 of 139 1 of 19 ENV-SOP-SHRT-0155, Rev 00 Signature Manifest Document Number: ENV-SOP-SHRT-01 55 Title: Support Equipment Procedure Revision:00 All dates and times are in Central Time Zone. ENV.SOP.SHRT-o155 QM Approval Marlegor-ArSyil+lcNnle LaGory (990324) Management Approval 16Sep2020, t0:(E:80AM Mlctt€se tecoty@m324)fltanag€r - Aua$ty 16 8€B 2m0, 10:06:22 Ali Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 91 of '139 ENV-SOP-SHRT-01 55. Rev 00 PROCESS STANDARD OPERATING PROCEDURE T!TLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT 1.0 2.0 3.0 COPYRIGHT @ 2019 Pace Analytical Services, LLC Punpose This standard operating procedure (SOP) describes the procedure used for maintaining adequate calibration and operational status of various support equipment throughout the laboratory. Scope AND APPLtcATtoN The policies and procedures set forth in this document are applicable to all personnel who maintain and calibrate any support equipment noted herein. Suunaanv 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.9., 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. Dennrnous 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. lt complies with the Class A tolerances defined in ASTM E694. lt 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 N lSTtraceable 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. lt 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 lnformation 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 Any printed copy of this SOP and all copies of thls SOP outside of Pace are uncontrolled copies. lJncontrolled copies are not tracked or replaced when new verslons are released or the SOP is made obsolete. Users of the SOP should verify the copy in possesslon is the current version of the SOP before use. Anfield Resources Holdins corp - shoota1iffiig%Yl;.Jl?i|3i.,#24 Radon Flux Measurement Report 4.O 3 of 19 ENV-SOP-SHRT-01 55, Rev 00 PROCESS STANDARD OPERATING PROCEDURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT O 2019 Pace Analytical Services, LLC. general area of the equipment. For those pieces of equipment which undergo monitoring, calibration verifications andior 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.9., calibrated weights and thermometers). All volumetric verification measurements must be traceable to Class A apparatus (e.9., volumetric fl asks). Service Status: lf equipment is found to be out of the required specification determined for use, it must be removed from service. lf 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 lnstitute 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{ype thermometers). This verification is performed against the NIST{raceable reference thermometer. Once verified, a correction factor must be designated even if no actual temperature correction is required (e.9., 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. lt 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. Any printed copy of this SOP and all copies of thls SOP outside of Pace are uncontrolled copies. lJncontrolled copies are not tracked or replaced when new verslons are released or the SOP is made obso/efe. lJsers of the SOP shou/d verify the copy in possession is the current version of the SOP before use. Anfield Resources Holdins corp - Shootarlig"?itl%U,i-r?1""i13i,1#24 Radon Flux Measurement Report 4 of 19 ENV-SOP-SHRT-O 1 55, Rev 00 o,PROCESS STANDARD OPERATING PROCEDURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT @ 2019 Pace Analytical Services, LLC 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.9., 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/lce 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 (0"C). 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. Any printed copy of this SOP and all copies of thls SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obso/ete. Users of the SOP should verify the copy in possesslon is the current version of the SOP before use. Anfield Resources Holdins Corp - Shootarliffiitl%Yl-rtjl""ilsir#24 Radon Flux Measurement Report 5 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT ENV-SOP-SHRT-O155. Rev 00 COPYRIGHT @ 2019 Pace Analytical Services, LLC. lf the average reading for the working thermometer has a correction factor greater than t 1.0'C the working thermometer must be returned to the Quality office. lf the working thermometer is to be used for non-analytical applications (e.9., 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. lt 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.9., digital thermometer, pre-certifled 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 lnfrared Thermometer Verification: The lR 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.9., 0' -> 6'C for samples). For labs performing drinking water compliance samples, lR guns must have a daily check performed against a non-lR 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 lR gun every 6 months bracketing the range of use. To verify the accuracy of the lR gun at a sub-ambient temperature, place a temperature blank or 1L container filled with Dl 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'-> 6oC but immediately measured in the open room like any other sample. Note: lnfrared thermometers can be affected by significant temperature changes in the surrounding environment. Therefore, the lR temperature gun must be in temperature equilibrium with the surrounding environment prior to performing the verification (or taking temperature readings). Any printed copy of this SOP and all copies of fhis SOP outside of Pace are uncontrolled copies. LJncontrolled copies are not tracked or replaced when new verslons are released or the SOP is made obsolete lJsers of the SOP shou/d verify the copy in possesslon is the current version of the SOP before use. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15, 2024 - Page 95 of 1 39 6 of 19 PROCESS STANDARD OPERATING PROCEDURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT O 2019 Pace Analytical Services, LLC. lmmediately take a measurement of the container surface temperature by focusing the lR 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 removalfrom the refrigerated conditions since the container surface will heat up quickly relative to the contents of the bottle. The readings for an lR thermometer are dependent on the emissivity of the surface being measured. The lR guns must be calibrated for each surface that may be measured (e.g., container label, plastic container, etc.) or if the lR 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 externalvendor 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 lnstitute) reference materials. See Attachment ll 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. lndividual 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 lf 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 specificatlons 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. Any printed copy of this SOP and all copies of this SOP outsrde of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new verslons are released or the SOP is made obso/ete Users of the SOP shou/d verify the copy in possession is the current version of the SOP before use. Anfield Resources Holdins CorF - Shoota1isbsiq%U,l-rtjl""rrlrSi*rr.24 Radon Flux Measurement Report 7 of 19 ENV-SOP-SHRT-01 55, Rev 00 ENV-SOP-SHRT-01 55, Rev 00 o,PROCESS STANDARD OPERATING PROCEDURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT O 2019 Pace Analytical Services, LLC. 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 ll). When outside the limits shown in Attachment lll, 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. lf 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. lt 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. lf 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 allthe working weights. The tnternal calibration function (if available) of the balance may be used as a means of corrective action. Utilize the internal calibration function and diagnostics. lf the above action does not correct the problem, the balance must be taken out of service and appropriately labeled to avoid improper usage. A seruice technician should be contacted if the balance cannot be repaired internally. Record any corrective action. lnitial and date allentries in the logbook. Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies. lJncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obso/ete, Users of fhe SOP should verify the copy in possession is the current version of the SOP before use. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 97 of 139 8 of 19 ENV-SOP-SHRT-0'l 55, Rev 00 o,PROCESS STANOARD OPERATING PROCEDURE TITLE:Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT @ 2019 Pace Analytical Services, LLC. 6.5 Refrigerators, Freezers, lncubators, 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. lf 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". lf a pipette is accompanied by a certiflcate 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. lf 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.9., Attachment lV)and document it. Calculate the average weight dispensed from the pipette. ln order to be verified as Class A, the calibration must meet the specifications listed in Attachment lll. 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 t2.0 and t2.5o/o, respectively. They must be calibrated upon initial Any printed copy of this SOP and all copies of fhis SOP outside of Pace are uncontrolled copies. LJncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP shou/d verify the copy in possesslon is the current version of the SOP before use. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 98 of 139 9 of 19 ENV-SOP-SHRT-01 55, Rev 00 PROCESS STANDARD OPERATING PROCEDURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT @ 2019 Pace Analytical Services, LLC receipt following the procedure outlined for fixed volume pipettes. lf 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 lf the syringe fails to meet acceptance criteria, repeat the verification steps. lf 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 solvenUliquid 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. Expelthe 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. lf 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. lf the density of the liquid is unknown, use the following approach to determine the density. Any printed copy of this SOP and all copies of thls SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or lhe SOP ls made obsolete. Users of lhe SOP shou/d verify the copy in possession is the current version of the SOP before use. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15, 2024 - Page 99 of 1 39 10 of 19 ENV-SOP-SHRT-01 55, Rev 00 PROCESS STANDARD OPERATING PROCEDURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT @ 2019 Pace Analytical Services, LLC 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. lf it fails a second time, label as "out of service" and inform the SQM/QM. Record alldata. 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 10o/o 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 lV) and enter it into the documentation. Calculate the average weight dispensed from the pipette assuming 1mL of deionized water = 1.0009. ln the absence of manufacturer specified performance criteria, the accuracy and precision must not exceed: t 2o/o at the maximum volume; t 2oh al half the maximum volume; t2% al the minimum volume. lf the pipette fails to meet these criteria, double check the tip for fit and recalibrate. Replace the tip if it fails once again. lf 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 lD, date calibrated, next calibration due date, and who calibrated. Any printed copy of this SOP and all copies of fhis SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new yersions are released or the SOP is made obsolete. lJsers of the SOP shou/d verify the copy in possesslon is the current version of the SOP before use. Anfield Resources Holdins Corp. - Shootarrng :?SfSj! | iil,: lfiJa"? - 2o24 Radon Flux Measurement Report 11 of 19 ENV-SOP-SHRT-01 55, Rev 00 o,PROCESS STANDARD OPERATING PROCEDURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT @ 2019 Pace Analytical Services, LLC. 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.9., 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 made. 6.6.4.2 Setting Volume once all measurements have been 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. lf 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. lf 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. lf 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. Any printed copy of this SOP and all copies of thls SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new yersions are released or the SOP is made obso/ete Users of the SOP shou/d verify the copy in possession is the current version of the SOP before use. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Repod November 15,2024 - Page '101 of '139 12 ol 19 ENV-SOP-SHRT-0't 55, Rev 00 PROCESS STANDARD OPERATING PROGEDURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT @ 2019 Pace Analytical Services, LLC. 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 extracUdigestate. 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 RESPONSIBTLTTIES 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 Any printed copy of this SOP and all copies of this SOP oulsrUe of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obso/ete. lJsers of the SOP should verify the copy in possession is the current version of the SOP before use. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 102 of 139 13 of '19 ENV-SOP-SHRT-01 55, Rev 00 PROCESS STANDARD OPERATING PROCEDURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT O 2019 Pace Analytical Services, LLC. 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 l: Weight Class Tolerances Attachment ll: Weight Class Applications Attachment lll : Tolerance Limits Attachment lV: Water Density Correction Factors Attachment V: Adjustable Pipette Troubleshooting Guide 9.0 REFERENCES Pace Quality Assurance Manual- most current version National lnstitute of Standards and Technology website "Handbook of Environmental Analysis - 4th Edition", Roy-Keith Smith, PhD, Genium Publishing Corp., 1999 1O.O REVISION HISTORY This Version: Section Descriotion of Chanoe Ail New laboratory procedure, consolidating several lab SOPs for support equipment into one. This document the S Document Number Tifle Version ENV-SOP-SHRT-OO1 Balance Calibration Procedure 00 ENV-SOP.SHRT-027 Pipette Delivery Check Procedure 00 ENV.SOP.SHRT-084 Thermometers and Monitoring Procedure 00 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. Llsers of the SOP shou/d verify the copy in possession is the current version of the SOP before use. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 103 of 139 14 of 19 ENV-SOP-SHRT-0155, Rev 00 PROCESS STANDARD OPERATING PROCEOURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT @ 2019 Pace Analytical Services, LLC. Attachment l: Weight Class Tolerances Metric Weiqht ASTM Class NIST Class NBS Class All tolerances listed in mg Flitg't ri-d rli^gr.i hE i#: 1kg 1.3 2.5 5.0 10 20 50 100 470 100 2.5 5009 0.60 1.2 2.5 5.0 '10 30 50 300 70 1.2 300s 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 1 00g 0.13 0.25 0.50 1.0 2.0 9 '10 100 20 0.25 5og 0.060 0.12 o.25 0.60 1.2 5.6 7 10 0.12 3og 0.037 0.074 0.15 0.45 0.90 4.0 5 44 6.0 2os 0.037 0.074 0.10 0.35 0.70 3.0 3 33 4.0 0.074 1og 0.025 0.050 0.074 0.25 0.50 2.0 2 21 2.0 0.074 5q 0.0'17 0.034 0.054 0.18 0.36 1.3 2 13 1.5 0.054 3q 0.017 0.034 0.054 0.15 0.30 0.95 2 9.4 1.28 0.054 2s 0.017 0.034 0.054 0.13 0.26 0.75 2 7.0 1.12 0.054 19 o.o17 0.034 0.054 0.10 0.20 0.50 2 4.5 0.90 0.054 500m9 0.005 0.010 0.025 0.080 0.16 0.38 1 3.0 0.72 0.025 300mq 0.005 0.010 0.025 0.070 0.14 0.30 1 2.2 0.61 0.025 200m9 0.005 0.010 0.025 0.060 0.12 0.26 1 1.8 0.54 0.025 100m9 0.005 0.0'10 0.025 0.050 0.10 0.20 1 1.2 0.43 0.025 50mq 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 1Omq 0.005 0.010 0.014 0.030 0.060 0.10 0.5 0.4 0.21 0.014 5mq 0.005 0.010 0.014 0.028 0.055 0.080 0.2 0.17 0.0'14 3mq 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 o.12 0.014 '1mo 0.005 0.010 0.014 0.025 0.050 0.050 0.1 0.10 0.014 Crnss S SUPERSEDED ev ASTM E617-9 see rote n Sec 'ror.r 11 Values PRoVTDED FoR- IIDO L PURPOSES REFERENCE Any printed copy of this SOP and all copies of thls SOP outside of Pace are uncontrolled copies. tJncontrolled copies are not tracked or replaced when new versions are released or fhe SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. Anfield Resources Holdins corp - shootanns :?!l!Bjl,! i:J: 13i."? - 2024 Radon Flux Measurement Report 15 o1 19 ENV-SOP-SHRT-01 55, Rev 00 O,,PROCESS STANDARD OPERATING PROCEDURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT @ 20'19 Pace Analytical Services, LLC. Attachment ll: Weight Class Applications OIML IR consolidation, 1994 ASTM E 617- 1997 NBS Circ. 547, 1954 superseded 1978 NIST 1 05-1, 1990 Typical Use Extra-fine accuracy. E1 primary laboratory reference standards E2 0 high precision standards for calibrationof weights and special precision analytical balances, accuracy classes I and ll (class ll, depending on precision)1 M,S Fine accuracy. F1 2 high accuracy class ll 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. 4 P accuracy class lll, industrial scales, dial scales, trip balances, platform scales M1 5 o M2 6 T F M3 7 also used for accuracy class lll L and llll Source: National lnstitute of Standards and Technologies (http;//ts.nist.qov/WerqhtsAndMeasures/caqnrass.cfm ) Any printed copy of this SOP and all copies of fhis SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or fhe SOP is made obsolete. Users of the SOP shou/d verify the copy in possesslon is the current version of the SOP before use. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 1 05 of 1 39 '16 of 19 ENV-SOP-SHRT-O'l 55, Rev 00 Analyticalo,PROCESS STANDARD OPERATING PROCEDURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT O 2019 Pace Analytical Services, LLC Attachment lll: Tolerance Limits Bel-lruce TouenencE Lrmrrs Weight Balance Accuracy (t g) 0.00019 0.0019 0.019 o.1g 1 000q N/A N/A 1og 10q 500s N/A NiA 5g 5g 1 00q 1.0q 1g 1g 1g 5oq 0.50o 0.5q o.5s o.5g 10o 0.1 0o 0.1 0q 0.1o o.1g 1q 0.010q 0.01o 0.01q NiA o.5g 0.005q 0.005o N/A N/A o.1g 0.001o 0.001o N/A N/A 0.059 0.0005q NiA N/A N/A 0.019 0.00019 N/A N/A N/A Cmss A GmsswARE ToLERANcE LTMITS Capecry (uL)BuRer Gnloulteo Cvr-rHoen Votuuernrc Flasx VoLUMETRIc Prper 0.5 r0.006 1 r0.01 t0.006 2 t0.01 10.15 r0.006 3 t0.01 4 10.01 5 r0.01 t0.02 r0.01 10 r0.02 t0.08 t0.02 t0.02 20 10.03 25 r0.03 r0.14 t0.03 t0.03 50 r0.05 t0.2 t0.05 t0.05 100 t0.10 t0.35 t0.08 r0.08 200 t0.10 250 t0.65 t0.12 500 t1.1 t0.20 1000 t2.0 t0.30 Any printed copy of this SOP and all copies of thls SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or lhe SOP is made obsolete Users of the SOP shou/d verify the copy in possesslon is the current version of the SOP before use. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 106 of 139 17 of 19 ENV-SOP-SHRT-01 55, Rev 00 PROCESS STANDARD OPERATING PROCEDURE TITLE:Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT @ 2019 Pace Analytical Services, LLC. Attachment lV: Water Density Correction Factors Temp,oc Density Gorrectron Factor F Temp, "c Density Correction Factor F 20.0 20.1 20.2 20.3 20.4 20.5 20.6 20.7 20.8 20.9 21.0 21.1 21.2 21.3 21.4 21.5 21.6 21.7 21.8 21.9 22.0 22.1 22.2 22.3 22.4 22.5 0.99820 0.99818 0.99816 0.99814 0.99812 0.99810 0.99808 0.99806 0.99804 0.99801 0.99799 0.99797 0.99795 0.99793 0.99790 0.99788 0.99786 0.99784 0.99782 0.99779 0.99777 0.99775 0.99772 0.99770 0.99768 0.99766 0.00000 1.00002 1.00004 1.00006 '1.00008 1 .00010 1.00012 1.00014 I .00016 '1.00019 1.00021 1.00023 1.00025 1.00027 1.00030 1.00032 1.00034 1.00036 1.00039 1.00041 1.00043 1.00045 1.00048 1.00050 1.00052 1.00054 22.6 22.7 22.8 22.9 23.0 23.1 23.2 23.3 23.4 23.5 23.6 23.7 23.8 23.9 24.0 24.1 24.2 24.3 24.4 24.5 24.6 24.7 24.8 24.9 25.0 0.99763 0.99761 0.99759 0.99756 0.99754 0.99751 0.99749 0.99747 0.99744 0.99742 0.99739 0.99737 0.99735 0.99732 0.99730 0.99727 0.99725 0.99722 0.99720 0.99717 0.99715 0.99712 0.99710 0.99707 0.99704 1.00057 1.00059 1.00061 1.00064 1.00066 1.00069 '1.00071 1.00073 1.00076 1.00078 1.00081 1.00083 1.00085 1.00088 1.00090 1.00093 1.00095 1.00098 1 .00100 1 .00103 1 .00105 1 .00108 1 .001 10 1.001 '13 1 .001 16 Any printed copy of this SOP and all copies of fhis SOP outside of Pace are uncontrolled copies. lJncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP shou/d verify the copy in possesslon is the current version of the SOP before use. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 107 of 139 18 of "i9 ENV-SOP-SHRT-0'1 55. Rev 00 o,PROCESS STANDARD OPERATING PROCEDURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT ERRon Cluse Solulor.r 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 10-100p1 and 50-200p1 Replace the reducing tube in the nose cone Filling tube in the nose cone is blocked. COPYRIGHT O 2019 Pace Analytical Services, LLC. Attachment V: Adjustable Pipette Troubleshooting Guide Any printed copy of this SOP and all copies of fhis SOP outside of Pace are uncontrolled copies. IJncontrolled 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 possesslon is the current version of the SOP before use. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 108 of 139 19 of 19 ENV-SOP-SHRT-0038, Rev 00 ceAnalytical. ENVIRON M ENTAL SCIENCES Document Information Document Number: ENV-SOP-SHRT-0038 Revision: 00 Document Title: Radon Flux Gas Emanation EPA 520/5-85-029 Department(s): Rad Chem Date Information Effective Date: 29 Jan 2018 Notes Document Notes: All Dates and Times are listed in: CentralTime Zone Anfield Resources Holdins Corp. - Shootarrns :?l5BJI,i i:J: 13J."? - 2024 Radon Flux Measurement Report 1of 9 ENV.SOP.SHRT-OO3B. Rev OO lnter-Mountain Labs January 29,2A18 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: lnter-MountainLaboratories,lnc.,Sheridan Address: 1673 Terra Avenue Sheridan, WY 82801 Written by: Tom Patten Title: Lab Manager Quality Manager: Michelle LaGory Telephone: (307)672-8945 Address: 1673 Terra Avenue Sheridan, WY 82801 Phone: (307) 672-8945 O Plan Coverage: Standard Operating Procedures for Analysis of Radon Flux Lab Representative: Lab Supervisor: R-RadonFlux-1.1 Page 1 of 8 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 110 of 139 2 ol 9 ENV-SOP-SHRT-0038. Rev 00 lnter-Mountain Labs January 29,2018 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/m2-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 lhe 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 BJ214 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 R-RadonFlux-'1.1 Page 2 of 8 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15, 2024 - Page 1 1 1 of 139 3of9 ENV-SOP-SHRT-0038. Rev 00 lnter-Mountain Labs January 29,2018 6.5 Decay - a period of decay of product over time based on half-life. 7.0 !nterferences, 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. ln 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 al40% efficiency and gamma ray spectrum from 40 KeV to 1200 KeV or Nal gamma spectrometer. 9.2 Stainless steel cylindrical cans with volume of 16 ounces, with lids 9.3 Electricaltape 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 SampleCollection, 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 consisl 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. R-RadonFlux-1.1 Page 3 of 8 Anfleld Resources Holdins corp - shootarrng":?S:r6J! I iil,: ;f;."? -.2o24 Radon Flux Measurement Report 4of9 ENV-SOP-SHRT-0038, Rev 00 lnter-Mountain Labs January 29,2018 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 +l- 10o/o 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 CalibrationandStandardization. 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 (ROl) at 609 KEV for the Gamma Spectrometer. l3.3Efficiency 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 1 10 I 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/m2-s.e 15.0 Calculations. l5.l Calculation A. Calculations can be performed by either A or B: R-RadonFlux-1.1 Page 4 of 8 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 'l 13 of 139 5of9 ENV-SOP-SHRT-0038, Rev 00 lnter-Mountain Labs January 29,2018 ctrJ= rou(,.-"-' ',)("- ) ",-','-,- 2 ",-"') Where: J = radon flux in pCi/m2-s C = net area counts for 8i214 at 609 Kev ).= radon decay constant, 0.000002097ls (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 tr = samPling/exposure time, s tz = time from start of sample collection to start of counting, s ts = time from start of sample collection to end of counting, s lS.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 tr = samPling/exposure time, s o- H| _ t4o.s7 Where: P = Decay corrected value in pCi/Can H = Measured value in pCi/Can ta = time from midpoint of sample collection to midpoint of counting, days d = decay factor of 3.825 days ,, - C/ts KE Where: H = Measured value in pCi/Can ts = counting time E = efficiency of detector; where counts/second divided by K and E converts to pCi K = 0.037 d/s/pCi R-RadonFlux-1.1 Page 5 of 8 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 114 of 139 l:; 6of9 ENV-SOP-SHRT-0038, Rev 00 lnter-Mountain Labs 16.0 Precision and Accuracy. 1 6.1 Relative percent difference, RPD January 29,2018 RPD = I(A-B)l* too(A + B)l2l Where: A = Net activity of the first measurement B = Net activity of the second measurement 16.2 Replicate error ratio, RER ln-elRER=-: /sl *.fr Where: A = Net activity of the first measurement B = Net activity of the second measurement s, = The uncertainty of the first measurement so = The uncertainty of the second measurement 17.0 PollutionPrevention 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 Griteria. 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 t 20 percent of the true value. 18.3DUP 18.3.1 The relative percent difference (RPD)should be s 20 percent. R-RadonFlux-1.1 Page 6 of 8 Anfield Resources Holdins corp - Shootarrns":?SITSJI I iil,: liJr"? - 2024 Radon Flux Measurement Report /of9 ENV-SOP-SHRT-0038, Rev 00 lnter-Mountain Labs January 29,2018 18.3.1.1 lf 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). lf 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. 19.1|f MB is above the RL, MB is recounted or reported with an appropriate qualifier. 19.21f the LCS does not meet acceptance criteria, recount LCS and determine if the entire batch needs to be recounted. 19.3|f 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 lnter-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 1 15. Monitoring for Radon-222 Emissions. 22.0 Tables, Diagrams, Comments. R-RadonFlux-1.1 Page 7 of 8 Anfield Resources Holdins corp. - Shootanns PruUa# liil,: lf;4"? - 2o24 Radon Flux Measurement Report 8of9 ENV-SOP-SHRT-0038, Rev 00 lnter-Mountain Labs January 29,2018 ATTACHMENT #1 STAN DARD OPERATING PROCEDURE METHOD TRAINING RECORD Document lrtle: Standard Operating Procedures for Analysis of Radon Flux Document Control Number: R-RadonFlux-1. 1 Location:lnter-Mountain Laboratories, lnc. 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 S!GNATURE DATE TRAINER R-RadonFlux-1.1 Anfield Resources Holding Corp. Page 8 of 8 - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 117 of 139 9oi9 Arrrelo ResouRces HorotNo CoRP. MorurroRrr.rc Rnooru-222 EMtssloNS, aka RADoN FLux MeasuReverurs Usrruc Lencr Anen Acrtvereo CnnRconr Cnrulsrens (LAACCS) SrnruonRo OprRntrxc PRoceouRe EP-10 SnooreRrrlc Mtt-t- Stru Mouronr NG RADo N-222 Etvusstons aka ReooN FLUx MeesuneMENT Usrr.rc Lence Anea AcrrvereD CHARcoAL CANISTERS (LAACCS) SunoaRo Openarrno PRoceoune EP-l0 Prepared by R and D Enterprises, lnc. P.O. Box 3321 Casper, WY 82602 For Anfield Resources Holding Corp. November 20,2021 Revision 2 Approved by: SherylA. Garling Date: 11-20-2021 Contract Corporate Radiation Safety Officer Approved by:Date: Mill Manager or Designee Revision No. 2 11t20t2021 1 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 1 18 of 139 Aruaelo RgsouRces Holptttc CoRp. MoNtroRrNG Reooru-222 Etr.ltsstot ts, aka Rloor.t FLux M elsuRel,let.trs Usrruc LnncE ARee AcrtverED CHARCoAL Cerutsrens (LMCCS) SrnruoRRo OppRattruc PRocEDURE EP-10 SHoornnrruo Mtt-t- Stre REVISION HISTORY Date Version Descriotion Author Januarv 1.2017 0 lnitial Draft Rooer A. Garlinq/S.A. Garlinq Februarv 28.2021 1 Name Rev S.A. Garlino November 20.2021 2 Forms & EPA Method115 Added S.A. Garlino Revision No. 2 11t20t2021 Anfield Resources Holding CorP 2 - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 1"19 of 139 Anrrelo ResouRces HoLotttc Conp. MoNrroRtNG Rnooru-222 Eutsstotts, aka Rnooru Flux Meesuneurruts Usrruc LeRce ARen AcrrverEo CHnRconl CerutsteRs (LAACCS) Srnruonno OpeRertruc PRocEDURE SHoornRrr.rc Mtt-t- Strr 1 2 3 4 5 6 7 8 9 ,l 1 I 0 I 2 EP-10 Reference 1 Appendix A, Procedure for Making Radon Flux Measurements Using Large Area Activated Charcoal Canister (LAACC) with Diagrams Field Forms Revision No. 2 11t20t2021 Anfield Resources Holding Corp 3 - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 120 of 139 Arurrelo RESoURcES HolotNc CoRp. MorurroRrruc RADoN-222 El,ltsstolts, aka Rlootl Frux MeesuRrurrurs Usrr'rc Lnnce ARrn Acrtvereo CHnRconl CarutsreRs (LAACCS) Srexoano OpeRertr.tc PRocEDURE EP-10 SHoornnrruc Mtt Stre 1 AcnoNyMS, AggnevnTtoNs, AHo lrutrnls CRSO Corporate Radiation Safety Officer LAACC Large Area Charcoal Canister m Meter pCi Picocurie sec Second Revision No. 2 11t2012021 4 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 121 of '139 Arurrelo RESoURCES HoLDtNG CoRP. MoNrroRrttc Rnooru-222 Etr,ttsstotts, aka ReooN Flux MEnsuReraerurs Usrruo LnRce AREA AcrvArED CHARCoAL CarulsreRs (LMCCS) SreNoeRo OpeRlrtnc PRoCEDURE EP-'10 Suoornnrruc Mtt-t- Stre SreruoenD OpERAnNG PRocEDURE EP-10 MorutroRrNG RADo N-222 Emtsstotts 2 Punpose 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 Derrrurrorus Refer to references. 4 Appr-rcagutrv Measurement and Calculation of Radon Flux from Uranium MillTailings Piles 5 Drscussron 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 paragraphs2.1.2 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 milltailings 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 MeasunemeHrs 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: Revision No. 2 11t20t2021 Anfield Resources Holding Corp 5 - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 122 of 139 ANnero RrsouRcrs Holotruc CoRp. MonrroRrNo Rnoox-222 Evtsstotts, aka Rnooru FLUX MEASUREMENTS Usrr.rc LnRoe ARrn Acrtverro CxnRconl Cnrutsrens (LAACCS) Srnruoeno OprRertruc PRoceoune EP-10 SHooTARTNG Mrr-r- Slre (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) lf 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. J. = JrAr+... J zAz... JiAi Ar 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. Revision No. 21',U20t2021 6 Anfield Resources Holdins Corp - Shootarrn€ :?if6jl I i";,: 11J."? - 2024 Radon Flux Measurement Report ANrrelo RESoURCES HolotNc Conp. Morurronnrc Rnooru-222 Eutsstorus, aka Rnoon Flux MensuReururs Usrruc Lnncr Anen Acrtvnteo CHencoel Cnrutsrrns (LAACCS) STANDARD OpeRnttruo PRocEDURE EP-10 SHoorenrrlc Mrr-t- Strc 6 RespottstBtLtrY The Corporate Radiation Safety Officer (CRSO) or his/her designee is responsible for implementing and following this procedure. 7 Eoutpuenr AND Mlrennls 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. MinimumiMaximum outdoor thermometer Rain gauge Shovel Field forms, pens, watch and camera 8 PRoceoune Senrputtc 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 lD # (b) Name of pile (c)Sample location (d) Sample lD number (e) Date and time on (f) Date and time off (g) Observations of meteorological conditions and comments Records shall include allapplicable information associated with determining the sample measurement, calculations, observations, and comments. 9 Qualrv Assunaruce Sltvtpt-tnc 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 lD # (b) Name of pile (c)Sample location (d)Sample lD number (e) Date and time on (f) Date and time off (g) Observations of meteorological conditions and comments Revision No. 21112012021 7 Anfield Resources Holdins corp - Shootarrn€ :?ilrSjl I iil,: 1i;."? - 2024 Radon Flux Measurement Report Arurrelo RESoURCES Houotttc CoRp. Mor.rrtoRrruc Reooru-222 Etr,ttsstotts, aka Rnooru Flux MeesuRelaelrs Usrruc Lencr Anea AcrtvnrED CHARCoAL Cnrutsrens (LAACCS) SrnxoeRo Opennrtruc PRoceouRe SnoornRrruc Mtrr Srre EP-10 Records shall include all applicable information associated with determining the sample measurement, calculations, observations, and comments. Sample Cusroov 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. CoIunreRCnU ANALYTICAL LABORATORY A third party commercialanalytical laboratory or equivalent will be used to analyze the exposed charcoal. The third-party laboratory will follow their analytical SOPs for radon-222lgamma spectroscopy for exposed charcoal and comply with their commercial laboratory certifications predicated by EPA, NELAC or other certification authority. INTERNAL Qualtry CoNrnol Cxecxs ANo FReQuercv 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 PRECtsroN, AccuRAcy, AND Coupueretess 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: t10Yo (c) Completeness: at least 85% of the measurements must yield useable results. 10 RecoRDs & RepoRnnc Radon-222 Emissions Measurement Field Form are located in Appendix A 40 CFR Pnnr $61.250 DESTGNATIoN OF Facttmes 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 PARr 561.253 DeteRuttttNG CoMPL|ANCE Compliance with the emission standard in this subpart shall be determined annually through the use of Method 1 15 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 561.254 ANNUAL REPoRnNG ReQulReraerurs (a) The owners or operators of operating existing mill impoundments shall report the results of the compliance calculations required in g 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. Revision No. 2 11t20t2021 Anfield Resources Holding Corp 8 - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 1 25 of 1 39 Arurrelo RESoURCES Horotruo CoRP. MoNrroRrNG Rnooru-222 Eutsstorus, aka Raool Ft-ux MrnsuREtrlerurs UsrNc Lnnce ARen Acrtvnreo CxRRconr Carutsrens (LAACCS) SrnruonRo Opennrtruc PRoceouRr SHooraRruc Mtt-t- Stre EP-10 (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) lf the facility is not in compliance with the emission limits of S 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. ln 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) lf 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 Panr $61.255 ReconoxeEPlNc REQU|REMENTS 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. ln 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 Rerenences 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 #P886-161874, January 1986. Environmental Protection Agency, "lndoor Radon and Radon Decay Product Measurement Protocols," EPA 520/1-89-009, U.S. Environmental Protection Agency, Washington, DC. (1989). U. S. Environmental Protection Agency, 40 Code of Federal Regulations (CFR), Part 61 , Environmental Protection Agency, National Emlsslon Sfandards for Hazardous Air Pollutants (NESHAPS); Radionuclides: Final Rule and Notice of Reconsideration, December 15, 1989. Subpart W was updated April2017. U. S. Nuclear Regulatory Commission, Radiological Effluent and Environmental Monitoring at Uranium M//s, Regulatory Guide 4.14, April 1980. U. S. Nuclear Regulatory Commission, Title 10, Code of Federal Regulations (CFR), Part 40, Appendix A to Parl 4}-Criteria Relating to the Operation of Uranium Mills and the Dlsposltion of Tailings or Wasfes Produced by the Extraction or Concentration of Source Material From Ores Processed Primarily for Their Source Material Content, August 2017. (1) (2) (3) (4) (5) Revision No. 2 11t20t2021 Anfield Resources Holding Corp 9 - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 126 of 139 ANFTELD RssouRces Houottto Conp. Mourronruo RADoN-222 EMtsstoNs, aka Rloott Frux MensuRel,lerurs UsrNG LARGE ARee Aclvereo CxnRcolL CeNtsrrRs (LAACCS) Srexoeno OpenqrtNc PRoceouaE EP-10 SnooreRrruc Mtt-l Stre 12 ApperuDrx A DncRanas, FoRus & EPA Merxoo 1 15 Revision No. 2 11t20t2021 10 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 127 of 139 DIAGRII{,OT LARGE AREA COLLEfTOR o,.!P ou'= 6EE'i - i trl5EE /?uorGtr / oi t / erl Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 128 of 139 El!ILU*!n-!tFe ;i'i(} -tA :t:E gE Ef *E EH"iEES 16,i Lo l,{u=oIJcofrttr{t{}{oEt)LnlJ lr JozoUJ t!o(J5Z!utt=(,oIAE(Joll J(JLlJG, lr J(9olszItiI=lr rxDt!zooG, (nroco=(!fdaF:)F()Uoc,o-!EzozIzolooEQ)JUU)aFzotrUo)Acco(,(9z6JoaUIJ0afoU0aoJ!!gzFzUJU oUFz FzuoUq! .925d FUzl llozU> F o tr l t a E: 5 ri = = st < Z NF 6 IooozoIE. lo-$NCLoUECzoEozo(JE.U-FU3 U)o-Er t <6 TD)q6Er i r< = uF - t0 z >X u I OX EU e> e& . > < r i <x s r c r 1x N >x u F H ox E- - e > 'n ' o i< - d <x 9 u zx N6 ad oY ^ d< YF9 Y )= Jol r l) 2r=r-Uu+ t (J L<=s5 EoootEo)Eo) fa(!{l)=fTLEoEotrsc{OoN( o Or h (o u -o D JNoo ) =O (/ ) c I( L5; coON c( )G-o-O' P .C E 6q ) 6:o, a.ioo(, ) .c!oIoo)ofoooE!or-c Method 115 814/20L7 White we hove tuken steps to ensure the accuracy of this Internet version of the document, it is not the ofJicial versiott. To see a complete version including any recent edits, visit: htttts:i/x'trtt.t,t't'r.gttt/t'gi-hin/EC[:R'!nugc:hnnrsc und search under Title 40, Protection of Environment. MsrHoo I lS-MoNtroRING FoR RADoN-222 ErrttssloNs 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 materialemitting radon. l. Radon-222 Emissions./i'om Underground Uraniunt Mine Vents I . I Sampling Frequency and Calculation of Emissions. Radon-222 emissions from underground uranium mine vents shall be determined using one of the following methods: l.l.l 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: A*: CrQrTr + C:QzT: +. . . CiQiTi Where: A*: Total radon-222 emitted from the mine during week (Ci) Ci : Average radon-222 concentration in mine vent i(Ci/mr) 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 l.l .l above. Emission rates determined using periodic measurements shall be measured and calculated as follows: 1 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 130 of 139 Method 1L5 8/4/2017 (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 rnine should be calculated as follows: 52-W"Au=2(A*i*A*z*...A*i)'n Where: Ar, : Annual radon-222 emission rate from the mine (Ci) A*i : Weekly radon-222 emission rate during the measurement period i (Ci) n : Number of weekly measurement periods per year W. : 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 TestMethod I of appendixAtopart60shallbeusedtodeterminevelocitytraverses.The sampling point in the duct shall be either the centroid of the cross section or the point of average velocity. I .2.2 Test Method 2 of appendix A to part 60 shall be used to determine velocity and volumetric flow rates. I .2.3 Test Methods ,4-6 or A-7 of appendix B, Method I l4 to part 6l 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 prograrn shall be conducted in conformance with the programs described for Continuous Radon Monitors and Alpha Track Detectors in EPA 520/l-89-009. (2) 2. Radon-222 Emissions.fi'om Uranium MillTailings Piles 2.1 Measurement and Calculation of Radon Flux from Uranium Mill Tailings Piles. 2 Anfield Resources Holding corp - shootarrns :?!USJI I iilt: ,,31."? - 2024 Radon Flux Measurement Report Method LL5 81412077 2.1 .l 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 shallbe 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 shallbe determined for each individualregion 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 O (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 darn 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: 3 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15, 2024 - Page 1 32 of 1 39 Method 115 8/4/2017 (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 sealaround 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 oF 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( I ) 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 collectoras directed in the procedure, ratherthe collector shallbe 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 shallbe made as provided in appendix A EPA 86 (1). The mean radon flux for each region of the pile shall be calculated by surnming 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 rnill tailings pile shall be calculated as follows. Jr=Jit * ... JzAz...JiAi Where: J,: 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. 4 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 133 of '139 At Method 115 3.0 Radon-222 Emissions from Phosphogypsum Stacks. 8/4/2OLl 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 shallbe 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. 5 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 1 34 of 1 39 Method 11-5 8/4l2Ot7 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 willrequire 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) lf 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 deternrined 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( I ) shall be used to measure the radon flux on phosphogypsum stacks, except the surface ofthe 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 (l). The mean radon flux for each region of the stack shallbe 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. JJt* JzAzi...JrAil' -s- At Where: J,: Mean flux for the total stack (pCi/mr-s) Ji : Mean flux measured in region i (pCi/ml-s) O Ai : Area of region i (-') 5 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 135 of 139 Method 1L5 814120L7 O A, : Total area of the stack 3. I .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. Snvpr-tNG PRocEDURES Records of field activities and laboratory measurements shallbe maintained. The following information shall be recorded for each charcoal canister measurement: (a) Site (b) Name of pile (c) Sarnple location (d) Sarnple ID nurnber (e) Date and time on (f) Date and tinre 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. SnH,tpll, Cusroov Custodial controlof 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. CnLIsnnTIoN PROCEDURES AND FREQUENCY The radioactivity of two standard charcoal sources, each containing a carefully determined quantity of radium-226 uniformly distributed through I 80g 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 cprn 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 7 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 1 36 of 1 39 Method 115 8/4/20t7 other changes affecting the background. The unexposed charcoal comprising the blank is changed with each new batch ofcharcoal used. D. INTEnNaL QUALITY CoNrRoL CHEcrs 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. Dnra PRECIStoN, AccuRecv, aNo 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: 10oh (b) Accuracy: +lloh (c) Completeness: at least 85% of the measurements must yield useable results. 5.0 ReprRpNces ( I ) 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 52015-85-029, January 1986. (2) Environmental Protection Agency, "lndoor Radon and Radon Decay Product Measurement Protocols", EPA 520/l-89-009, U.S. Environmental Protection Agency, Washington, DC. ( r e8e). 8 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15, 2024 - Page 1 37 of 1 39 UTT*I OTPNRTMFNT OF DIVISION OF AIR OIJALITY APPENDIX D PHOTOGRAPHS Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 138 of 139 trNVIRONMENTAL OUALITYI'----lI ,,^r, )') an,t, i I\:':iLL.il'L-__J Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2024 Radon Flux Measurement Report November 15,2024 - Page 139 of '139