The URL can be used to link to this page

Home My WebLink AboutDAQ-2024-007857AH Rc A,NFIELD RESOURCES HOLDING CORP. Snoorennc CaNvoru Unauuut Mrr-r--UT Atn Quelrv lD 14169 Nmorll- Emsstoru Smruoanos ron HlzanoousAn Pou-urarrs (NESHAPS) 2023 Raoon Flux Melsuneueur PRoonam Rlorolcnve Mnrennus LrcENsE UT0900480 UTAH nr:FABrr.rtr\rr oFEri'' i).):. 1.:i.t-[At_ QUALITY REVIEWED December 28,2023 Nlrpruel Eurssroru STaNDARDS FOR HlzqRoous Arn PolLUrANrs (NESHAPS) 2023 Reooru Flux MeasunEMENT PnocRarvt UT Atn Quaurv !D 14169 Aunelo ResouncEs Homrruc Conp. SnooreRrNc Garuvoru Mtu Trceeoo, UrAH 84533 DecerileeR 28, 2023 PRrpnReo roR: Aurrelo ResouRcrs Holontc Conp. SuoornRtNo CnuvoN Mn-t- Hwv 27612 Mtrcs NoRrH Or Bullrnoo P. O. Box 21 01 Lnxe Powrrr, UIRH 84533 PRepRnro aY: R nNo D ENrrnpnrses, lNC. P.O. Box 3321 CRSpER, WY 82602 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28,2023 - Page 1 of 126 TleLe or GoTTENTS Peoe Genrrncarrotl -40 CFR Panr 61.254 (rX4)........ ..............,..... 3 lrurnooucnoN.......... .......4 Srre DsscRrprroN....... ..........4 Recularonv ReournEMENTs aruo ReTeRENcES ...................... 5 Saupltttc Merxooot-ocy........... ........... 5 Freuo Openeroxs.............. .................. 6 Sauple Loceroxs, loexrrncaloN, AND Ptaceueur ............. 6 Queurw Corurnol.. .............. 7 Seupunc PRoceounEs............. ...........7 Sauple Cusrooy.. ...............7 CauraRAnoru PnoceouREs AND Fneouencv ..........7 lNrenruar Queurv Corurnol Cxecxs auo FReeuENcy ........ .................... 8 Dara Pnecrsron, Accunacv auo ColrlptETENESS ................... I Appenolx A Sunlnrtlnv Tlete or Anllvncll Results, Pulceuerur GRro aruo Locarou Map...9 Appexox B LeaoRArony ArullvrcAL Resulrs ano CenrrncATroNs... ................13 Appsttotx G Srauoeno Oprnanuc PnoceouREs.......... ......75 Appenox D PxorocRlpHs.......... ...124 Anfield Flesources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28,2023 - Page 2 ot 126 CERTIFICATION - 40 GFR 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 . ArurrElo ResouRces HoLDTNG Conp. - Conponnre Orrtcrn 12-28-2023 JosHun BLEAK, CHrrr ExEcurve Orrtcrn Dnr= Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28,2023 - Page 3 of 126 lrurnooucroN ln January 2017, Anfield Resources Holding Corp. (Company) notified the State of Utah, Department of Environmental Quality (DEQ), Division of Air Quality (DAO), that they would perform radon flux measurements on a quarterly basis, as identified in Method 115,2.1.1 Frequency of Flux Measurement. The Company's site personnel and Radiation Safety contractors, S.A. Garling and R.A. Garling, would provide the workforce to perform the quarterly radon flux measurements utilizing twenty-six (26) Large Area Activated Charcoal Canister (LAACC) collectors located on site. Pace Analytical, lnc., a certified, commercial analytical laboratory, provides unexposed activated charcoal charged cans and analytical services. July 2,2020, G. Sorenson, Environmental Scientist, Utah Division of Air Quality, requested that the Shootaring Canyon Mill, UT Air Quality Division, Site 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 1212712022, 0210812023, 0310112023, 0412112023, 0710412023, and 09/1512023). The UDEQ- DAQ did not have a representative present during the sampling events. The regulation, 40 CFR Part 61 , Method 1 15, Section 2.1.7 Calculations states: The mean flux for each region of the pile and for the total pile shall be calculated and reported as follows: ...The mean radon flux for each region of the pile shall be calculated by summing all individual flux measurements for the region and dividing by the total number of flux measurements for the region. The Shootaring Canyon Mill, UTAir Quality Site ldentification Number 14169, tailings cellconsists of a single, one-half acre region of dry tailings with several feet of interim cover of dry native material on the top surface (AppendixA). ln2023, 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 2023 was 15.0 pCi/m2-sec (2022 was 10.1 pCi/m2-sec ) with a standard deviation of 8.1 pCi/m2-sec, a minimum sample measurement of 0.7 pCilm2-sec (MDL of 0.5) and a maximum sample measure of 37.5 pCi/m2-sec. ln 2023, the Company complied with the 20 pCi/m2-sec standard for the tailings cell radon flux emissions regulation. The purpose of this report is to provide a general description of the placement, handling, analytical measurements, and calculation of radon flux measured from Large Area Activated Charcoal Canister (LAACC), also known as EPA Method 115. Sre 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 forthe 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 disposal cell is contained in an area of approximately 2,508 m2, equivalent to approximately one-half acre. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28,2023 - Page 4 ot 126 ln August 2004, the State of Utah, was granted an amendment, from the US NRC, . ..to assume regulatory authority over the possession and use of 11e.(2) byproduct material, including the facilities that generate such material. March of 2005, the State of Utah, Department of Environmental Quality, Division of Radiation Control, issued a Radioactive Material License (RML), UT0900480, to Plateau Resources Ltd for the Shootaring Canyon Mill Site. Utah provided the appropriate approvals for the Shootaring Canyon Mill RML to be successfully transferred throughout the years as the propefi ownership changed. RecuuroRy REQUTREMENTS AND RereReruces 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 subsection5l .252 Standard, (a) radon-222 emissions to ambient air ftom 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 thal: Compliance with the emission standard in this subpaft 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 Measurements on Gardinier and Royster Phosphogypsum Piles Near Tampa and Mulberry, Florida. SRutpt-tttc M ernoooLocY Radon emissions were measured using Large Area Activated Charcoal Canisters (LAACC) collectors in conformance with 40 CFR, Part 61, Appendix B, Method 115, Monitoring for Radon-222 Emissions. LAACCs are passive gas adsorption sampling devices used to determine the flux rate of radon-222 gas from a surface. The canisters were constructed using a 1O-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 1|2-inch-thick layer of foam and secured with a retaining ring under 1/2 inches of foam (see diagram in SOP, Appendix C). Twenty-five (25) canisters were deployed quarterly, throughout the covered tailings disposal cell region, on a marked, predetermined grid. Each charged canister was placed directly onto the surface (face down, without the collectors penetrating the cell cover material); local native material was used to seal (berm at base of the collector) the LAACC to the surface of the cell; collectors were exposed to the surface for 24 hours. Radon gas adsorbs onto the charcoal and the subsequent radioactive decay of the entrained radon gas (222Rn) decays to the bismuth-214 radon daughter (aka RaC). The radon progeny isotope emits a characteristic gamma photon that can be detected through gamma spectroscopy. The originaltotal activity of the adsorbed radon gas was calculated from the gamma ray measurements using calibration factors derived from cross-calibration of standard sources containing known total activities of radium-226, in secular equilibrium with radon-222, and with identical geometry to the collected samples. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28,2023 - Page 5 of 126 After 24-hour exposure period, the l-AACCs are removed and transported to an enclosed work area so that the exposed charcoal can be transfened to steel sample containers, sealed, identified, labeled, and packaged to be transported to Pace Analytical's Sheridan, WY laboratory facility. Frelo Openarorus 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 2023, the standard sampling sequence from A-1 through A-10 followed by B-1 through B-10. . .and so on, was used. The individual radon flux results for 2023 compared to 2022 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. Sanaple Locerous, loerunrrcATroN, 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., Al ...J 1 0). 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. Sxoorenrnc CANyoN Mul - UT Srre lD 14169 Surunaanv oF LAACC MelsuRerraerurs QuRRrrR 1"t QunRtrR 2023 2nd QuRntrn 2023 3'd QuRRtrR 2023 4th QunnteR 2023 Locnrroru RRoolI FI-ux AvrnAGE TABLE Lne lD s2303168 s2304348 s2307218 s231 1097 DRrr Drplovro 03t09t2023 04t23t2023 07t14t2023 11t04t2023 Dnre Rernreveo 0311012023 04t24t2023 07t15t2023 11105t2023 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 141 69 - 2023 Radon Flux Measurement Report December 28,2023 - Page 6 of 126 The LAACC units are systematically disassembled so that the premeasured blank charcoal media can be distributed in the media support grid. LAACC units are reassembled and prepared for deployment. The LAACC unit rim was then "sealed" to the surface, without penetrating, using a berm of local borrow material. Quelrrv Gorurnol ln 2023, Anfield Resources Holding Corp. opted to continue to monitor radon-222 emissions on a quarterly basis. Each quarter, twenty-five samples are deployed, the 2023 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 18O-gram aliquots of dried charcoalwereweighed and placed in sample containers. The contract laboratory's Radon Flux and Balance SOPs are included in Appendix C. 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 was captured and uploaded into the Laboratory I nformation Management System (Ll MS). 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 several have been included in this report. Seuputrc PnoceouRes Field forms were created to document the site/pile name, sample location, sample lD, deploy and retrieval dates, and meteorological conditions and comments. Sertrple Cusroov A Chain of Custody was used for sample submittal and sequence of sample transfer. CaLreRATroN PRocEDURES AND FREeuENcy Radioactive standards in a similar geometry and matrix (charcoal) of the samples were used in determin i n g i nstrument calibration and fu nctionality. 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 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 7 of 1 26 lnrenruRl Quaurv Corurnol Gnecxs aruo FneouENcy Method 115, Section D. states; The charcoal from every tenth exposed canisfer 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. Darn PRecrsroN, AccuRAcy AND CourplerENESS 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: 10o/o - Precision refers to the closeness of two or more measurements to each other. |n2023, sixteen (16, 16%)samples were recounted, also known as duplicates, and complied with the criteria. Blank samples: 5% - in 2023, twenty (20,20%) cans of blank charcoal were counted which complies with the criteria. Accuracy: t10o/o - Accuracy refers to the closeness of a measured value to a standard or known value. ln 2023, 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. ln 2023, one- hundred (100) samples met the completeness criteria. No collector was compromised by a seal failure due to precipitation or wind event, or breakage. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28,2023 - Page I of 126 APPENDIX A SUMMARY TABLE OF ANALYTICAL RESULTS, PLACEMENT GRID AND LOCATION MAP Anfield Besources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page I of 126 Anrrero Resounces Hor-ornG Conp. Sroorlnruc GaxvoH Mrr-r- UT Arn Qunurv lD 14169 2023 RADoN Fr-ux Avemce Data Type 2023 Data Set MrN pCi/m2-sec 0.7 Mnx, pCi/m2-sec 37.5 Sroev, pCi/m2-sec 8.1 AvERAGE, pCi/m2-sec 15.0 No. 1sr Qulnten 2*D Qulnten 3RD QulnteR 4" Quanten Gnro lD pCi/m2-sec GRID ID pCi/m2-sec Gnro lD pCi/m2-sec Gnro lD pCi/m2-sec DATE DEPLoYED 03t09t2023 DATE DEPLoYED 0412312023 DATE DEPLoYED 07t't4t2023 DATE DEPLoYED 11t0412023 DATE RETRIEVED 0311012023 DATE RETRIEVED 0412412023 Dnre RETRIEVED 07t15t2023 DATE RETRIEVED 1110512023 1 A-1 22.8 c-6 16.5 F-1 13.9 H-6 8.6 2 A-2 19.3 c-7 23.2 F-2 9.0 H-7 7.3 3 A-3 29.0 c-8 22.7 F-3 14.2 H-8 7.4 4 A-4 33.9 c-9 11.9 F-4 19.5 H-9 '13.'l 5 A-5 24.6 c-10 5.3 F-5 22.9 H-10 1.0 6 A-6 14.4 D-1 21.1 F-6 4.5 t-1 16.2 7 A-7 15.7 D-2 15.3 F-7 10.1 t-2 9.6 8 A-8 16.3 D-3 14.8 F-8 6.6 t-3 17.2 I A-9 27.0 D-4 15.7 F-9 3.5 t-4 6.9 10 A-10 7.8 D-5 15.5 F-10 5.8 t-5 7.9 11 B-1 28.1 D-6 12.2 G-1 19.0 t-6 4.9 12 B-2 8.6 D-7 15.5 G-2 24.1 t-7 6.1 13 n B-3 21.1 D-8 23.8 G-3 25.3 t-8 6.7 B-4 36.0 D-9 0.7 G-4 22.2 t-9 19.4 15 B-5 14.8 D-10 2.6 G-5 16.4 t-10 30.8 16 B-6 18.2 E-1 12.4 G-6 12.6 J-1 24.1 17 B-7 17.9 E-2 9.2 G-7 13.2 J-2 9.7 18 B-8 23.5 E-3 10.6 G-8 7.2 J-3 9.0 19 B-9 22.4 E-4 15.5 G-9 12.3 J-4 3.7 20 B-10 11.9 E-5 13.8 G-10 12.9 J-5 1.7 21 c-1 37.5 E-6 15.7 H-1 24.1 J-6 3.3 22 c-2 17.1 E-7 16.'l N-2 17.9 J-7 3.5 23 c-3 11.1 E-8 14.4 H-3 18.6 J-8 7-9 24 c-4 21.9 E-9 1.3 H-4 14.8 J-9 23.6 25 c-5 18.1 E-10 4.2 H-5 22.5 J-1 0 27.3 Mtr.t 7.8 Mttt 0.7 Mtr.t 3.5 Mttrt 1.0 Mnx 37.5 Mnx 23.8 Mnx 25.3 Mnx 30.8 SroEv 8.0 Sroev 6.5 SroEv 6.6 Sroev 8.3 AVERAGE 20.8 AVERAGE 13.2 AVERAGE 14.9 AVERAGE 11 .1 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 1 0 of 1 26 NORTH WEST J I H G F E D c B 10 Anneuo Resounces Holorue Conp. SxoornRtruc Glttvott Mul UT Arn Quautrv lD 14169 Tltl.rues Cell Gnro 2023 Rloolr Fr-ux Resulrs GRID KEY RADoN Fr-ux REsulr rru NORTH EAST J I H G F E D c B A SOUTH EAST10 A SOUTH WEST Dara Ser SuuuunRY Mttttn,tunt 0.7 oCi/mz-sec MRxttvutrl 37.5 oCi/m2-sec SrRruoRno DevtRrtoN 8.1 oCi/m2-sec AvrnRoe 15.0 pCi/m2-sec 4rH-2s 27.3 41H -24 23.6 4rH -23 7.9 41H -22 3.5 4rH -21 3.3 4rH-20 1.7 4rH -18 3.7 4rH -18 9.0 4rH -17 9.7 4rH -16 24.1 4rH-1 5 30.8 41H -14 19.4 4rH -13 6.7 4rH -i2 6.1 4rH -1i DUP 26 4.915.4 4rH-1 o 7.9 4TH -8 6.9 4TH -8 17.2 4rH -7 9.6 4TH -6 16.2 4rH-5 1.0 4rH -4 13.1 4TH -3 7.4 4rH -2 7.3 4rH -1 8.6 3RD - 25 22.5 3RD - 24 14.8 3RD - 23 18.6 3Ro - 22 17.9 3RD - 21 24.1 3RD - 20 DUP 26 12.9t',t5.9 3RD - 1g 12.3 3RD - 18 7.2 3RD - 17 13.2 3RD - 16 12.6 3Ro - 15 16.4 3RD - 14 22.2 3RD - "13 25.3 3RD - 12 24.1 3RD- t1 19.0 3RD - 1o 5.8 3RD-9 3.5 3RD-8 6.6 3RD-7 10.1 3RD-6 4.5 3RD-5 22.9 3RD -4 19.5 3RD-3 14.2 3RD-2 9.0 3RD-1 13.9 zND-25 4.2 2No-24 1.3 2ND-23 14.4 2ND-22 16.1 2ND-21 15.7 2ND-20 13.8 2ND-'19 15.5 2ND-1 8 10.6 2No-17 9.2 2ND-1 6 DUP 26 12.4t13.8 2ND-1 5 2.6 2ND-14 0.7 2ND-1 3 23.8 2No-12 15.5 2ND-1 1 12.2 2ND-1 o 15.5 2ND-9 15.7 2ND-8 14.8 2No-7 15.3 2ND.6 21.1 2ND-5 5.3 2ND-4 11.9 2ND-3 22.7 2No-2 23.2 2ND-1 16.5 1sr - 25 DUP 26 18.1/18.8 1sr -24 21.9 1sr - 23 11.1 l|sr - 22 17.1 l|sr - 21 37.5 1sr - 20 11.9 1sr - 19 22.4 lsr - 18 23.5 l|sr - 17 17.9 1sr - 16 18.2 1sr - 15 14.8 'lsr - 14 36.0 1sr - 13 21.1 1sr - 12 8.6 1sr - 11 28.1 1sr - 1o 7.8 1ST _ 9 27.0 1sr - 8 16.3 1sr - 7 15.7 lsr - 6 14_4 1ST-5 24.6 1ST _ 4 33.9 1sr-3 29.0 1sr -z '19.3 1sr - 'l 22.8 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28,2023 - Page'l 'l of 126 o-oO" , a I E: 9 c o I __ * 6 q U ) +z = t o L r ] i= m S < gl b - 5 - (u ! oO E - - * 3= 2 g i j -L > v u- c / ) O ( s C o tU OO - C [ o o 9= oc 9 Co i= Q- j < N O CS N (t r O o <r , - r N r -Va. ,\ ! f t 1,rI I, , i, JL ^ \\: ,: . ': ' \ .t 't t f" " ,. I ,i \" . - - ., ' i - u '1 r 1- . .d r .f i *,1 APPENDIX B LABORATORY ANALYTICAL RESULTS AND CERTIFICATIONS Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14.169 - 2023 Radon Flux Measurement Beport December 28,2023 - Page 13 ol 126 t000 +! C ? !r . a^ a) (Eo- !I7taLi -j,iu) ItJ ) ,. J l tl )\;U1Jd(. / ]Lr{ aooea Io(J lr l&oot-afot. Lozaf! >(o > l- i = g0 ) (! (, CE lr , :> =>tC L. Go. ! +J n- ;d ,J l, I A 1i > 1[11M I le Il * I lw I lr I lo I t; I l. = H 12 :(aie,0I <EOE oa (r o -= ar -1 -: ^t I al x ^ L. r I e) u I ! = l! I '| v a> = ii >i = o a, H el 9 ,r v, n Y 3 c- - : t l :6 J a : E ?< O E o: > = ( l rl a a rl it U ::ve - ozft P( ) E -. t gu l gT5a g ', c .- c O. i .. : ,1 -Q ' ) _ h Gl : - J : ' -u r _ F GI : -J : , .! ^ .= < c >( i L . \ 9 L- 6 : s =; c, -r o ; - i S- - 5 .: -! =, : s n= 6 1 ; ;f , - - - 9; J . - : .x 0 ) E . : 9 tl ri _ __ g 5 JL - J .3 l J . o2 :6 ;: a f i r : >, tJ t L rl ,i2132;i .JoIauloV, :foauJ a /- t :t U=E4z 5< iu r <J IL\: *. t (t o s'c !c ) v r ( L lr r lT *a : l { . + Nerpuel Eussrou STaUDARDS FOR Hnzrnoous Arn PolLUrANrs (N ESHAPS) 2023 Reoou Flux MeesunEMENT Pnoonena UT Arn QueurY lD 14169 Annelo Resounces HolDrNG Conp. SnoorRRNG CaNYon Mul Trcneoo, UrAH 84533 DeceMeeR 28, 2023 PRepRneo ron: Arurrrlo Rrsounces HolorNc Conp. SnoorRRrxc CRNvoru Mrr-r- Hvw27612 Mrrcs NonrH Or Bullrnoc P. O. Box2101 Lme Powerr, UrRn 84533 PnrpRnro av: R nruo D Erurcnpnrsrs, lNc. P.O. Box 3321 CRSpeR, WY826O2 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 1 of 1 26 Taale or Conrrurs Pece Cenrrrclrou -40 CFR Penr 61.254 (aX+)......... ................3 lNTRoDUcloN........... .....................4 Sre DescnrproN........ .....................4 REGULAToRy ReourReueNTS AND RereReuces ............... ...................... 5 Sampuxc METHoDoLocy.............. ..................... 5 Frelo OpeneroNs ......... 6 Semple Locanorus, loenlnclttoN, AND Ptaceuext .......... 6 Quelrw GorurRol... .......7 Saupltttc PRocEDURES............... ...................... 7 Snnaple Cusroov... ........7 CaueRArroN PRocEDURES AND FneQueucv ......7 lureRnal Qullrv ConrRol Cnecxs lxo FReQuENcY......... ................. I DerR Pnecrsrotr, AccuRAcy AND Cotvtpletet.lEss............ ...................... I Appenolx A SullnaaRy TagLe or Aueurncau Results, Pteceueur Gmo eno Locarloru Mlp...9 AppeuorxB LeaoRAroRyANALYTlcalResulrsANDCenrlrlcarloNs......... ..........13 Apperuorx G Sranoano OpeRalruo PRoceouRES.......... ....................75 AppENDrx D PxorocmpHs.......... .................124 Anfield Resources Holding Corp. - Shootaring Canyon lt/ill - Site 1 4169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 2 ol 126 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 . Arurrrlo REsouRcrs HolorNc Conp. - CoRponnrr OprtceR 12-28-2023 Josnun BLEAK, CHtrr Execurrve Orrrcrn Dnrr Anlield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 3 ol 126 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 Measurement. The Company's site personnel and Radiation Safety contractors, S.A. Garling and R.A. Garling, would provide the workforce to perform the quarterly radon flux measurements utilizing twenty-six (26) Large Area Activated Charcoal Canister (LAACC) collectors located on site. Pace Analytical, 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 1212712022, 0210812023, O3lO1l2O23, 0412112023, 0710412023, and 09/15/20231. 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 repofted 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 (AppendixA). ln 2023, 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 2023was 15.0 pCi/m2-sec (2022 was 10.1 pCi/m2-sec ) with a standard deviation of 8.1 pCi/m2-sec, a minimum sample measurement of 0.7 pCi/m2-sec (MDL of 0.5) and a maximum sample measure of 37.5 pCi/m2-sec. ln 2023, 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 (LMCC), also known as EPA Method 115. Sre 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 disposalcelland covered with native soil. The disposalcell is contained in an area of approximately 2,508 m2, equivalent to approximately one-half acre. Anfield Resources Holding Corp. - Shoolaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28,2023 - Page 4 of 126 ln August 2004, the State of Utah, was granted an amendment, from the US NRC, . ..to assume regulatory authority over the possession and use of 11e.(2) byproduct material, including the facilities that generate such material. March of 2005, the State of Utah, Department of Environmental Quality, Division of Radiation Control, issued a Radioactive Material License (RML), UT0900480, to Plateau Resources Ltd for the Shootaring Canyon Mill Site. Utah provided the appropriate approvals for the Shootaring Canyon Mill RML to be successfully transferred throughout the years as the property ownership changed. ReouleroRy REQUTREMENTS AND REFERENcES Radon emissions from the Shootaring Canyon Mill are regulated by the State of Utah's Division of Radiation Control under RML UT0900480 and administered by the Utah Division of Air Quality under standards set by the Environmental Protection Agency (EPA) in 40 CFR Part 61, Subpart W. The State of Utah, by reference, incorporated these rules in Utah Administrative Code R307- 214-1, These regulations are a subset of the National Emission Standards for Hazardous Air Pollutants (NESHAPS). According to subsection 61.252 Standard, (a)radon-222 emissions to ambient air fom 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 thal: Compliance with the emission 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 Measurements on Gardinier and Royster Phosphogypsum Piles Near Tampa and Mulberry, Florida. Seuplrr.rc 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 Emissions. LAACCS are passive gas adsorption sampling devices used to determine the flux rate of radon-222 gas from a surface. The canisters were constructed using a 10-inch diameter PVC end cap containing a bed of approximately 180 grams of activated, granular activated charcoal. The prepared charcoalwas placed in the canisters on a support grid on top of a 1|2-inch-thick layer of foam and secured with a retaining ring under 1/2 inches of foam (see diagram in SOP, Appendix C). Twenty-five (25) canisters were deployed quarterly, throughout the covered tailings disposal cell region, on a marked, predetermined grid. Each charged canister was placed directly onto the surface (face down, without the collectors penetrating the cell cover material); local native material was used to seal (berm at base of the collector) the 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) decays to the bismuth-214 radon daughter (aka RaC). The radon progeny isotope emits a characteristic gamma photon that can be detected through gamma spectroscopy. The originaltotal activity of the adsorbed radon gas was calculated from the gamma ray measurements using calibration factors derived from cross-calibration of standard sources containing known total activities of radium-226, in secular equilibrium with radon-222, and with identical geometry to the collected samples. Anlield Resources Holding Corp. - Shootaring Canyon Mill - Site 14165 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 5 of 1 26 \After 24-hour exposure period, the l-AACCs are removed and transported to an enclosed work area sothatthe exposed charcoalcan betransferred to steelsample mntainers, sealed, identified, labeled, and packaged to be transported to Pace Analytical's Sheridan, WY laboratory facility. Frelo OpeRanons 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 2023, the standard sampling sequence from A-1 through A-10 followed by B-1 through B-10.. .and so on, was used. The individual radon flux results 'for 2023 compared lo 2022 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. Sxooranruc CANyoN Mru - UT Stre lD '14169 Surt,t rrrrlRv or LAACC M easuReueruts QuRRren l"tQuRRten 2023 2nd QuRRteR 2023 3'd QuRRteR 2023 4th QuRRteR 2023 LoCATIoN RRooru FIux AvTRAGE TABLE Lne lD s2303168 s2304348 s2307218 s231 1 097 DArE DeplovEo 03t0912023 04123t2023 07t14t2023 11t0412023 DnrE RETRIEVED o3t10t2023 04t24t2023 07t15t2023 11t05t2023 Seuple Locertons, loerunncATtoN, 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., 41...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. Anfierd Resources Holdins corp. - shootarinsollif!#li_ Fr13 Jt 31;3o23 Radon Flux Measurement Report The LAACC units are systematically disassembled so that the premeasured blank charcoal media can be distributed in the media support grid. LAACC units are reassembled and prepared for deployment. The LAACC unit rim was then "sealed" to the surface, without penetrating, using a berm of local borrow material. Qualrv Corurnol ln 2023, Anfield Resources Holding Corp. opted to continue to monitor radon-222 emissions on a quarterly basis. Each quarter, twenty-five samples are deployed, the 2023 sampling schedule is in the Field Operations Section. The contract laboratory provided the dried, weighed charcoalin 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. 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 was captured and uploaded into the Laboratory I nformation Management System ( Ll MS). 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 several have been included in this report. Sempltttc PRoceouRes Field forms were created to document the site/pile name, sample location, sample lD, deploy and retrieval dates, and meteorological conditions and comments. Semple Cusroov A Chain of Custody was used for sample submittal and sequence of sample transfer. CRLTSRAToN PRocEDURES AND FREeuENcy Radioactive standards in a similar geometry and matrix (charcoal) of the samples were used in determining i nstrument 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 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 7 ot 126 lureRnel Quelrv Conrnol Cnecxs ano FReouENcy Method 115, Section D. states; The charcoal from every tenth exposed canlsfer shall be recounted. Five percent of the samp/es 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. Dera PnecrsroN, AccuRAcy AND ConaplerENESS 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. |n2023, sixteen (16, 16%)samples were recounted, also known as duplicates, and complied with the criteria. Blank samples: 5% - in 2023, twenty (20, 20%)cans of blank charcoalwere counted which complies with the criteria. Accuracy: t10% - Accuracy refers to the closeness of a measured value to a standard or known value. ln 2023, 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. ln 2023, one- hundred (100)samples met the completeness criteria. No collector was compromised by a seal failure due to precipitation or wind event, or breakage. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 'l'4169 - 2023 Badon Flux Measurement Report December 28, 2023 - Page 8 of 1 26 APPENDIX A SUMMARY TABLE OF ANALYTICAL RESULTS, PLACEMENT GRID AND LOCATION MAP Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Reporl December 28, 2023 - Page I of 1 26 ANrrelo Resounces Hor-orr.rc Conp. SnooraruNc CnwoN Mrr-r- UT Arn Quaurv lD 14169 2023 Raoou Fr-ux AvERnce Data Type 2023 Data Set Mttt pCi/m2-sec 0.7 Max, pCi/m2-sec 37.5 Srorv, pCi/m2-sec 8.'l AvERAGE, pCi/m2-sec 15.0 No. 1s'Quanten 2no QunnteR 3*o QuAnrER 4TH QUARTER GRID ID pCi/m2-sec Gnro lD pCi/m2-sec GRID ID pCi/m2-sec Gnro lD pCi/m2-sec DATE DEPLoYED 0310912023 DATE DEPLoYED 0412312023 DATE DEPLoYED 0711412023 DATE DEPLoYED 11t04t2023 DATE RETRIEVED 03t10t2023 DATE RETRIEVED 04t24t2023 DATE RETRIEVED 0711512023 DATE RETRIEVED 11t05t2023 1 A-1 22.8 c-6 16.5 F-1 13.9 H-6 8.6 2 A-2 19.3 c-7 23.2 F-2 9.0 H-7 7.3 3 A-3 29.0 c-8 22.7 F-3 14.2 H-8 7.4 4 A-4 33.9 c-9 11.9 F-4 19.5 H-9 13.1 5 A-5 24.6 c-10 5.3 F-5 22.9 H-10 1.0 6 A-6 14.4 D-1 21.1 F-6 4.5 t-1 16.2 7 A-7 15_7 D-2 15.3 F-7 '10.1 t-2 9.6 8 A-8 '16.3 D-3 14.8 F-8 6.6 t-3 17.2 9 A-9 27.0 D-4 15.7 F-9 3.5 t-4 6.9 10 A-10 7.8 D-5 15.5 F-10 5.8 t-5 7.9 11 B-1 28.1 D-6 12.2 G-1 19.0 t-6 4.9 12 B-2 8.6 D-7 15.5 G-2 24.1 l-7 6.1 13 B-3 21.1 D-8 23.8 G-3 25.3 t-8 6.7 14 B-4 36.0 D-9 0.7 G-4 22.2 t-9 't9.4 't5 B-5 14.8 D-10 2.6 G-5 16.4 r-10 30.8 16 B-6 18.2 E-1 12.4 G-6 12.6 J-1 24.1 17 B-7 17.9 E-2 9.2 G-7 13.2 J-2 9.7 18 B-8 23.5 E-3 '10.6 G-8 7.2 J-3 9.0 19 B-9 22.4 E-4 15.5 G-9 12.3 J-4 3.7 20 B-10 't 1.9 E-5 13.8 G-10 12.9 J-5 1.7 21 c-1 37.5 E-6 15.7 H-1 24.1 J-6 3.3 22 c-2 17.1 E-7 16.'l H-2 17.9 J-7 3.5 23 c-3 11 .1 E-8 14.4 H-3 18.6 J-8 7.9 24 c-4 21.9 E-9 1.3 H-4 14.8 J-9 23.6 25 c-5 18.1 E-10 4.2 H-5 22.5 J-1 0 27.3 MtN 7.8 Mtr.t 0.7 Mtu 3.5 Mttt 1.0 MAx 37.5 Mnx 23.8 Mex 25.3 Mnx 30.8 Sroev 8.0 Sroev 6.5 SroEv 6.6 Sroev 8.3 AVERAGE 20.8 AVERAGE 13.2 AVERAGE 14.9 AVERAGE 11 .1 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 1 0 of 1 26 NORTH WEST J I H G F E D c B 10 Arunelo Resounces Holorno Conp. Sroornnnc Caruvoru Mul UT Arn Qururv lD 14{69 Tlrlrxcs Ceu Gnro 2023 Rloou Fr-ux Resulrs Gnro Kev Rnooru Flux RESulr tr.t NORTH EAST J I H G F E D c B A SOUTH EAST10 A SOUTH WEST Dam Ser Suur'rlnY Mrrurrrltuu 0.7 pCi/m2-sec MRxrvun,t 37.5 oCi/m2-sec Srnruonno DevrRrroru 8.1 pCi/mz-sec AvenRce 15.0 oCi/mz-sec 4rH-2s 27.3 41H -24 23.6 4rH -23 70 4rH -22 3.5 4rH -21 3.3 4rH-20 1.7 4rH -19 3.7 4rH -19 9.0 4rB -17 9.7 4rH -16 24.1 4rH-15 30.8 4rH -14 19.4 4rH -13 6.7 4rN -12 6.1 4rH -11 DUP 26 4.915.4 4rH-1 o 7.9 4TH -8 6.9 4TH -8 17.2 4rH -7 9.6 4TH -6 16.2 4IH-5 1.0 4TH -4 13.1 4rH -3 7.4 4rH -2 7.3 4rH -1 8.6 3RD - 25 22.5 3RD - 24 14.8 3RD - 23 18.6 3Ro - 22 17.9 3RD - 2t 24.1 3RD - 20 DUP 26 12.9115.9 3RD - 19 12.3 3RD - 18 7.2 3RD - 17 13.2 3RD - 16 12.6 3RD - 15 16.4 3RD - 14 22.2 3RD - 13 25.3 3RD - 12 24.1 3RD-11 19.0 3RD - '10 5.8 3RD_9 3.5 3RD-8 6.6 3RD-7 10.1 3RD-6 4.5 3RD-5 22.9 3RD -4 19.5 eRD e 14.2 3RD-2 9.0 3RD-1 13.9 2No-zs 4.2 2ND-24 1.3 2ND-23 14.4 2ND-22 16.1 2ND-21 15.7 2ND-20 13.8 2ND-1 g 15.5 2ND- 1 9 10.6 2ND-17 9.2 2ND-1 6 DUP 26 12.4t13.8 2ND-1 5 2.6 zND-14 o.7 2ND-1 3 23.8 2No-12 15.5 2ND-1 1 12.2 2ND-1 o 15.5 2ND-9 15.7 2ND-8 14.8 2ND-7 15.3 2ND-6 21.1 2ND-5 5.3 2ND-4 11.9 2ND-3 22.7 2No-2 23.2 2ND-1 '16.5 isr - 25 DUP 26 18.1/1 8.8 1sr -24 21.9 1sr - 23 11.1 1sr -22 17.1 lsr - 21 37.5 isr - 20 11.9 1sr - 1g 22.4 1sr - 1g 23.5 1sr - 17 17.9 1sr - '16 18.2 1sr - 15 14.8 1sr - 14 36.0 1sr - 13 21.1 1sr - 12 8.6 1sr-'1 1 28.1 1sr - '10 7.8 1sr-9 27.0 1sr-B 16.3 1sr-7 15.7 1sr - 6 14.4 1sr-s 24.6 'tsr - 4 33.9 1ST-3 29.0 1sr -z 19.3 1sr - 1 22.8 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28,2023 - Page 11 of 126 ti ) is ' \ '- r: : I \- * " ; ' " l !, . t'1 ,L\c \ ? 'a " rf r , - 1 . - . 1 .- " .' ,\ * " . '\ 1 , .a , rl l Pa g e ' 1 2 ol 12 t j !, ; .{ " , !Y . l ? "q : ooO" , a D: L! o- 9- I ^< = c O U J +z = L o L r l - cm $ 7 (/ ) -* O = oO E -* P ?' Z Y; 2 r- ( r - ( o c D G 0J d C f O (I ) !/ S oj c o (d ; U. _ Y C { O C- C ^ r d- ^ <( / ) - i a n i J. ": APPENDIX B LABORATORY ANALYTICAL RESULTS AND CERTIFICATIONS Anlield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 1 3 of 1 26 g) uIM,o(J&t&ooa:)oILo2a)Ia- (E > Jg {E o CE J\, :> =>IL t- r0 OP +- , ;i (o6 3r - 6r - \r -J ^g :!aiG- -t ) ;U ,Y } n\au D& <E+L -COE rr & -c !:>ar :c! al I l= tl J t I ti 2l I li (n i x . GL ! I vr u I : .= o - I q ^{ = S> = n, i t o I Sv r o - ' : YU ) a - ? 0 =F r a E - -v ) ^ - OC - L U U I xn ' t r No o v S ozf& :os tJ .3 6 E< :oEU oa L V) q &" " . a -o : J $ l -- - : 99 r t € > 6 La . q !, - n :B: = a * rn :- n- : : :i il ' :l - : E6 : : l :< u t C a . : ? Or r cr * - l l - 1 - E. ur l I .- , '! l I o (J I JC ) -t to ol I o 9t ' . al I ^ sl o l ( ] ;l s l H .x i il fr 91 6 i H . (" , I Yl Ul x \G t l u1 -l 0) ;r o l <l =t c ^r l <l ;l = +l ;l 4l cr l c\ r l +l eEu : <l EU ) C . I U o5 - " u o iE ( r ) o = = >q L L n aYgu l <= il Liz?o ts- \r .' ll .j -l (i .U fL ] I *I l s . ' : -t"1bJuo- UJozolr l l!o(J5&UJ tt l2.Uoucc (JoutUUJG, lr | IGszoah9UJxfIIzoo&, ot ro fl<t de5o,dLFDF.JUJocAJa. zoz(J(9zd,Foo4vtd)UU2F2IFL)o)CLco(J(9z6Jo-rhuJ(,GDovtu,GoE' rz#2UJU -9rf \4' in\f \ ,(df.=00t\$tJ . o . t{ d F+ \ o-UF 6E- c c\6Eur - VIFzUo(J a, F €O co *, h q q o gt !. t Ot o \, o! . 6g FUzt =JozU> oo F uzE= =OL9 st < NF t/ l rq\o\Jioooz.9ec,oI<l t\ ,rIJUG, o-a,otvh.hq(,Y\,o2oEozoUeUIFU3 rJo-Er r <o (nJ 01Jd ,^ 8 vt .{otI oot '.3Io I5iI(\ !. 1 n'lt ri)oI Q-c\G L\aaIs o\Is aIF -toIs ,* raIG $t- (^sIc \aoI |- .sI J o< U=uI FLG< F stt t (,d. -{(, lr 1 |9d. -t (9VIoE. -I (9ar ) (9d {(, tA|oe. it(, tJ 1 (9e. .l (9 IJ \ (9G, {(, tt 1 (9d. \. { (9 th(oE, (, tJ 1 (9t (9 th19E .lt, tJ 1 (9 {(9 th(9G, {(9(9d. {tah (9E -{ |ot,uG, i{(,VIuG, :> m . q =H l * = H S\ q = E <m s! 6 2, 6 N >:F b+ \\ b t" ) \ \t\. \\ \,+ lI s t\. . s* \o c0tal 4T F. :r =T F g H o- X tr > SR t r 3 <m sr u z. o No ao o .. Jo sqa lr lo {6 c0o 6o c.(b s. to ${Io :. . rr lb tc{0 J.To F.No olNo or( ro zl! lr J(,zo. the, lr , CEdF(nNoN ,n Q X iE E N m sf rn (o 00 o oFt F{co Nco fnco <l6 mo loc0 co Jo* U>=3 U ols{ 6c. { r{ k, :r ros{ J {. s. ) G,F V' I {s, cr${ off ) q'.$( N u) lt (J r<=13 FI (f lJ $l t rf )$I I oc(I rl - t FI coI 6I JI NI oc{a @I bI (o IJ oI "4LLoj(,s IUozolt l lJ -oCJsGt! ta=(Jot)&(JoUJFulr lG, u, (,E,3zott l2UJxDu.zooG o' l roF{<l r{e:=l!)dLF=bt!a&rtE\ zozU(J ,zE,FooIAdJ)u,UFzIFt)oo-EolJu,z6JoI]hg,G=o.au,GoJut gzFzgJU Jff l 7_EhS,- : sE.3l{oi .t - ) ol ho-FEr r >i l! .E. E EE (, - FzUo(J q Ot ,\ !- O' t J q a o a?o=6g FU2t - -l6zU> oo F uzE= EOLY 1eq< NF S\IJS kttotiiooozo't ro.&)oI<tNA(JUo-.looul-t4\t)ql0o2oEozoUGu?Fg= UJ4Er . <o r!) I 6I ot\ ,1 Ia t' ,5I4t\ '- . I \J n v q. o o Pr (6Ie 0I tIla . cI lI o ., I ,) + oI r.oI oI rI 6I vI 0BI o<dt r LZ !J ; FI 6< f F6 {.(9u1 (9E d(, th(, t {{|9t/ t (,d. {(, (t 1 (,d. -t(, t\(,&. -l (, th(9G {(9 tt ,uE. {s(,VI t9G. \t (9vt {cE *H ' O E ; Q\ o s E >s \ + i ! -m SE a. o N rT r- r$ 9. I (r .$ 0. \$ srlt o(} oh I I =i l b s H o- X E: SR ? =: <c l su J z. o No lno s{$o sr l$o q:o JPtl !-:o rqo q$ta r:o I I zl! lr . I (9zo. tAOEUJ&,dmNoN -6 ? 3E E aco (nco oco t{(J NU (nu $(J lnU o- foIt! IJ zIGO z5co z5co zsct I4foco3 Io,3ocos Io. focos riIGfoto5 Jor c Uz c. > fD (, ff ) 4rt - (O <' 4Ot {Jc. l cl (f ) tq -{-s .{I \nc. t {(q 't q () (a Iez(J 4r, | s{Iezu <t t-IozU <EJIezL, , u) * (J L1= o\I sI tr t ! l, i r , $l +I <. ( I I c{s{I tNI F{ I ro Na6 (n aco <lI@ r{ Io NIo anIo <lIo ,/tC/ rrru,, {r.d[xe Pace Analytical 1673Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Date: 311512023 CLIENT: Anfield Resources CASE NARRATIVE Project: Shootaring CMP-UT AQ lD 14169 Lab order: s2303168 Report lD: s2303168001 Entire Report Reviewed by: D/,'<--- ' - Wade Nieuwsma, Laboratory Operations Manager Samples A1, A10, A2, A3, A4, A5, A6, A7, AB, A9, Bl, B10, 82, 83, 84, 85, 86, 87, BB, B9, BLANK-1, BLANK-2, BLANK-3, BLANK-4, C1, C2, C3, C4, C5 and CS-DUP were received on March 13, 2023. 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-0310-1Bg 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 Survey Laboratory Manual Ver 4.0 ^-A/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 - 2023 Radon Flux Measurement Report December 28,2023 - Page 17 oI 126 *T &ru, Pace Analytical,lBd,'l'XS 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Date: 311512023 Definitions RL Reporting Limit Qualifiers * Value exceeds Maximum Contaminant Level A Check MSA specifications B Analyte detected in the associated Method Blank C Calculated Value D Report limit raised due to dilution E Value above quantitation range G Analyzed at Pace Gillette, WY laboratory H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits L Analyzed by another laboratory M Value exceeds Monthly Ave or MCL or is less than LCL ND Not Detected at the Reporting Limit O Outside the Range of Dilutions R RPD outside accepted recovery limits Spike Recovery outside accepted recovery limits Analyte below method detection limit X Matrix Effect Page 2 of 2 Anrield Resources Holdins corp. - shootarilgiry%!fl-r?l?ii,3i#23 Radon Flux Measurement Report A,lItr,l&*it&Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: Shootaring CMP-UT AQ lD 14169 COC: Date Reported:. 311512023 Report lD: 52303168001 Work Order: S2303168 Date Received: 311312023 Samoler: RAG/SAG/LM Lab lD: Client Sample lD: Al s2303168-001 Collection Date: 311012023 '11:44:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 10:43 WN EPA 1 1 522.8 0.5 Lab lD: 52303168-002 Collection Date: 311012023 11:44:00 AM Client Sample lD: A2 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 1 0:54 WN EPA 1 1519.3 0.5 Lab lD: 52303168-003 Collection Date: 311012023 1'1:44:00 AM Client Sample lD: A3 Matrix: Solid \nalyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 29.0 0.5 pCi/m2-sec 0311412023 10:58 WN EPA 115 Lab lD: 52303168-004 Collection Date: 31101202311:44:00AM Client Sample lD: A4 Matrix: Solid Analyses Result RL Qual Units Date Analy'zed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 11:02 WN EPA 1'1533.9 0.5 Lab lD: 52303168-005 Collection Date: 311Q12023 1 1:45:00 AM Glient Sample lD: A5 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 24.6 0.5 pCi/m2-sec 0311412023 11:05 WN EPA 1'15 Lab lD: 52303168-006 Collection Date: 311012023 '11:45:00 AM Client Sample lD: 46 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 14.4 0.5 pCi/m2-sec 0311412023 '1 1:14 WN EPA'l 15 These results apply only to the samples tested. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Ste 14169 - 2o2gRadon Flux v"".rr"r.nFn?$Brlnot S December 28, 2023 - Page 1 I of 1 26 -4,t \,"r'.ttr*'!el Pace Analytical 1673 Tena Avenue Sheridan, WY 8280'1 ph: (307) 672-8945 Sample Analysis Report CLIENT: Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: Shootaring CMP-UT AQ lD 14169 GOC: Date Reported: 311512023 Report lD: 52303168001 Work Order: 52303168 Date Received: 311312023 Sampler: RAG/SAG/LM Lab lD: Client Sample lD: A7 s2303168-007 Collection Date: 311012023 11:45:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 11:20 WN EPA 11515.7 0.5 Lab lD: 52303168-008 Collection Date: 3/10/2023 11:45:00AM Client Sample lD: A8 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 1 1:25 WN EPA 11516 3 0.5 Lab lD: 52303168-009 Collection Date: 311Q12023 1 1 :46:00 AM Client Sample lD: Ag Matrixr Solid \nalyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 27.0 0.5 pCi/m2-sec 0311412023 11:30 WN EPA 115 Lab lD: 52303168-010 Collection Date: 311012023 11:46:00 AM Client Sample lD: A10 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 7.8 0.5 pCi/m2-sec 0311412023 11:34 WN EPA 115 Lab lD: 52303168-011 Collection Date: 31101202311:49:00AM Client Sample lD: 81 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 1 1:57 WN EPA 1'1528 1 05 Lab lD: 52303168-012 Collection Date: 311012023 11:49:00 AM Client Sample lD: 82 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 86 0.5 pCi/m2-sec 0311412023'12:01 WN EPA 115 These results apply only to the samples tested. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2[z3Radon Flux fr/"urrr"rS#$?r?."t U December 28, 2023 - Page 20 of 1 26 A,/ &;ttn.*,$rr,& Pace Analytical 1673 TerraAvenue Sheridan, WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: AnfieldResources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: Shootaring CMP-UT AQ lD 14169 coc: Date Reported: 311512023 Report lD: 52303168001 Work Order: 52303168 Date Received: 311312023 Sampler: RAG/SAG/LM Lab lD: Client Sample lD: 83 s2303168-01 3 Collection Date: 311012023 11:48:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 12:05 WN EPA 1 1 521.1 0.5 Lab lD: 32303168-014 Collection Date: 311012023 11:45:00 AM Glient Sample lD: 84 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 12:11 WN EPA 11536.0 0 5 Lab lD: 52303168-015 Collection Date: 311012023 11:48:00 AM Glient Sample lD: 85 Matrix: Solid tnalyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 14.8 0.5 pCi/m2-sec 0311412023 12:14 WN EPA'l '15 Lab lD: 52303168-01 6 Collection Date: 311012023 1 1 :48:00 AM Client Sample lD: 86 Matrix: Solid Anal)rses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 18.2 0.5 pCi/m2-sec 0311412023 12:20 WN EPA 115 Lab lD: 52303168-017 Collection Date: 311012023 11:47:00 AM Client Sample lD: 87 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 12:25 WN EPA 11517.9 0 5 Lab lD: 52303168-018 Collection Dale: 311012023 '1'1:47:00 AM Client Sample lD: 88 Matrix: Solid Analpes Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCiim2-sec 0311412023 12:32 WN EPA 11523.5 0.5 These results apply only to the samples tested. Anfield Flesources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2[23Radon Flux ffl"r.rr"rBn?fl?p9oft U December 28,2023 - Page 21 ot 126 lt,l &i,r,{n&q,r{,Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, M 85210 Project: Shootaring CMP-UT AQ lD 14169 COC: Date Reported: 311512023 Report lD: 52303168001 Work Order: 52303168 Date Received:. 311312023 Sampler: RAG/SAG/LM Lab lD: Glient Sample lD: Bg s23031 68-01 I Collection Date: 311012023 1 1:47:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 '12:37 WN EPA 11522.4 0.5 Lab lD: 52303168-020 Collection Date: 311012023 11.47.00 AM Client Sample lD: B10 Matrix: Solid Analyses Result RL Qual Units Date Analyed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 '12:4'1 WN EPA 1 1 511.9 0.5 Lab lD: 52303168-021 Collection Date: 311012023 1 1:49:00 AM Client Sample !D: C1 Matrix: Solid Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 37.5 0.5 pCi/m2-sec 0311412023 12:54 WN EPA 1'15 Lab lD: 52303168-022 Collection Date: 311012023 '11:49:00 AM Cfient Sample lD: C2 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 13:01 WN EPA 11517.1 0.5 Lab lD: 52303168-023 Collection Date: 311Q12023 1 1:49:00 AM Client Sample lD: C3 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 13:08 WN EPA 1'1511.1 0.5 Lab lD: 52303168-024 Collection Date: 31101202311:50:00AM Client Sample lD: C4 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 13:14 WN EPA 11521.9 0.5 These results apply only to the samples tested. Paoe 4 of 5 Anfield Resources Holdins Corp. - Shoota1igs?}l%ll,l,?1""L1,3i#23 Radon Flux MeasurementFeport ,1 {iryr Pace Analyticalr,ll?*f,],1* 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: AnfieldResources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: Shootaring CMP-UT AQ lD 14169 coc: Date Reported:. 311512023 Report lD: 52303168001 Work Order: 52303168 Date Received: 311312023 Sampler: RAG/SAG/LM Lab lD: Glient Sample lD: C5 s2303168-025 Collection Date: 311012023 1 'l:50:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pci/m2-sec 0311412023 13:20 WN EPA 115't 8.1 0.5 Lab lD: 52303168-026 Collection Date: 311012023 11:50:00 AM Client Sample lD: CS-DUP Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 1 3:29 WN EPA '1 1518.8 0.5 Lab lD: 32303168-027 Collection Date: Client Sample lD: BLANK-1 Matrix: Solid \nalyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 ND 0.5 pCi/m2-sec 0311412023 13:34 WN EPA 115 Lab lD: 52303168-028 Collection Date: Client Sample lD: BLANK-2 Matrix: Solid Analyses Result RL Qua! Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 13:43 WN EPA 115ND 0.5 Lab lD: 52303168-029 Collection Date: Client Sample lD: BLANK-3 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 13:51 WN EPA 115ND 0.5 Lab !D: 52303168-030 Collection Date: Client Sample lD: BLANK-4 Matrix: Solid Analyses Result RL Qual Units Date Analyed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0311412023 '14:10 WN EPA 115ND 0.5 These results apply only to the samples tested. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - zrl2gRadon Flux ,"urrr"r3n?fl?p?nof 5 December 28, 2023 - Page 23 oJ 1 26 Ir,-J. ,lnr*r?,'Jt Pace Analytical '1673 Terra Avenue Sheridan, WY 82801 CLIENT: Anfield Resources Work Order: 52303168 Project: Shootaring CMP-UT AQ lD 14169 Radon Flux ANALYTICAL QC SUMMARY REPORT Sample Type MBLK ph: (307) 672-8945 Date: 311512023 Report !D: 52303168001 Units: pCi/m2-sec MB START (03114123 10:18) RunNo: 208675 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 0.5ND MB END (03114123 14:35) RunNo: 208675 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 ND Sample Type LCSI Units: pCi/m2-sec 0.5 Radon Flux RADSTD-16-1 START (03/14123 08:13) RunNo:208675 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 101 90-110387 RADSTD-16-1 END (03/14123 15:05) RunNo:208675 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 393 Sample Type LCS2 387 102 Units: pCi/m2-sec 05 90 - 110 Radon Flux RADSTD-16-2 START (03/14123 10:30) RunNo:208675 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 90 - 110 RADSTD-16-2 END (03/14123 14:49) RunNo:208675 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 401 0 Sample Type DUP 3870 104 Units: pCi/m2-sec 05 90 - 110 Radon Flux S2303168-001ADUP (03114123 10:48) RunNo:208675 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 228 1 07 S2303168-010ADUP (03114123 11:45) RunNo:208675 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 8.0 0.5 7.8 2.64 10 S2303'168-020AOUP (03114123 12:47) RunNo: 208675 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 11.9 1 '1 .9 0.170 10 S2303168-030ADUP (03114123 14:21) RunNo:208675 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 10 Anlield Resources Holdins Corp. - Shoota1lg"gH%lt,l-rtJl?iX,3i,;?r23 Radon Flux Measurement Report Pase 1 of 1 -o0)3q<'otEo(! ,C6clEg,Ctoc{toJ.=6Efo!)c TI J tao- fo$ozazJco ri - ooooE0)oa x0,0,E06o(! o(!o06coGoooUJ !0) ,:(,oLLoo1' (!3oc)o oIJ Jgfoll luloiooo= {toFooodooodto !o.9 !063oJjc!tr l o, (o$oo=oo(!3 I ot - EN doF - E3 \IzJN\IJutuldu)rrodlrvl\I{u {\: .. , .?\k\\It o:6aoDof5cooooEcIocooo0) ,9Eco-coEfOoo6oo6I,9gF q)q)ooo.J aqq0)q)osu){ av. tut- tuEE,t@ut@z Ic'o(ucoEo :: ' Ll l C, ) 1 1 OZ6i E 5> t oX o. r oY r o _ E- - 9c a c ov , b e= Ot r O - ozJu(9duJ-q o) (o$oat- l(L=(,zx.Foo-U) oauo;o(,L(EoEoutoxtuooJI@N otr(! ()Eoe(! .go.v ,oort coooooah(!o!,o, (,coL0) E(!o\toooollt!J oaiIl/ ,oodt o 9. o (! c po ; h 9o 0i = o LN c O. . :E Y E1 4 ) F EE U (O - t r at 3 xn D IJ JJlLzo q)oo]nL6) x. oz(9z6oIv,ulou3o@ll l t.ouJ ILz Y. 5 .I O r1 E'co .i ( D - - u^ Y 0) ;i ( r (t r t : [] r o DD x x +ooID< \\1>ot- , i- a Iotro()UJuooFafoLoziIo> tl = (E r0 ) -9 L:aE v {J E L( uo: 2' . ,: . E o= #o )=5 5- . r E n \ - 1 1 O = x . 5 I \ "l l!o:l |c UIFozouloI5clEIvl2L'o(JGuou, tF2FuUJeUJ (90cszI]n9=utxfl!zoo0c or roc{(ide=IEadk,br6c,rJJ=zozIJ(9zd,Foo!thdJJu, t (J thJaFzoFUoJBcoIJ(9zooI\nqI (JE)oqlGourazFzu. l=U AUFz= 6E. E EE - (! , - 6FzUoU NI )e1p F IF F I 0I !) \.9 tJ F a. , tJ J J t l\ Ifr a, I Irt ! \, o? . o=6g FU zl=I l8= oo F uzE= EOL9 +G<f < NF rt ,(, rlkhU?o\uooozoCLdlotsfN.Lotr JG, CL{Ivqrt{v2oEozo(Jd. UJ-FU3 I ul JCLEr t <o a- COs v, J o< UL -L = !J u FL6< F {9an19d. (9rn(,E. (9v1 (9G. (9 tl \(,d. (J tnoG. (, an(,c. (9{lo ,t c i< VI (,c. (, th(9t (, tl , t (9&. (, tt , (9E (9V, t9E (9VI (,G (91r 1 (,E. (9tt(,c. (9 .J l (,G, ot1(9G, >r o u 5H = H Si T E <s l sa E z, o N t\(. \ t\ h o( os( tr{ lFlr (F c\ l. (t - a a a Jat rS uF>H F> cO+) -o{uNO > (Y l >N \- oONSR 2\>3 u6 o (€ oto To .to \oo \o vl0 v0 0 oo ho volr Fo ao da: zIJtr t (9zo.=q0l Lr J l-0c ldFmNoN zd -Q X JF X f, { ! (ou h(J oI o) (J oFlL' Flo No (Y lo <fo lno roa No r0a Or6 oFlo Flul ofoF{u. t Jol r l) >s- 3 (J c!t ssYsl qhct q\t <t fot\ ( lra qrh eOt tO, . s{ qh ir t \q. qo\ R0el c{ o (J L1= :tNI !ts{ I @I a, I +I hI sr l I ar I F- I tr , I g\ I (YI oI o(1a c{ rlI FI hsrI ii . o- n n - 1 o a< JIIo:l (,f EIFozolr t ot rodo=t!dk2bt!dG,c-J=zo=L, (! ,=cFoo-]h{JUUtt r JaFzoF(, )oJA. 0co(,(,z6o-.hlr l (Jc,=otnUJdourzFzu. l=U o-UFz 6E. C EE u, - rhFzro(J 't\\t sIF 1h \,\tD a, I.J t \t h ) I :t ) aI lJ I qI 6eo=6g FU zl - lfoz (J > ltI(Js0cutF,J l=(JoU4E(JoUJFFL' UJ CEUJ IE,szo.h9Egtx:) l!zooc. oo F sJ zE= =OL9 +F1&$< NF 'q r . L' I t. t, { \hr?otuoooz.9qG, fo-ttNCLUl!d. CLJoov<r tl rUa,(,2oEozoU&.ul IFu3 UJo-Er t se d!3 J o< J-UL L1PI Fr 6< F (9 th(9G, (9 ta(9d. (9(h(9e_ (, an (9G. 19 th(,d. oVI t,G. (, ,J l (,d. (, th(JG uth(,G, I >a n uJ SH = H Qi LE =q - [ <s l st E zo N \t \, t\ r\ F. f-r 0a 6 O. t I I >m uF =H =< e; i, 6 =q ' :E d << t < t u zo N6 Fo oo qr , ,9\ o d tq :? b a I I I I ztr J Ll J (,z&=tiG, t!G)c, F(nNoN za iE E Y6 Nlr | (n l! <fUI rJ l l! (ot! t\UI ooUI O' l lr J oFl lr l Yzso zso :zzsao xzs00 Io.Dolos NIr:)ocos (n Ic:)olo5 ll ICL folos ol r l) 2 c. =+d U +Tt( (\,\r twtf l qth Cfo qN st ts q.osr q(n (t:! \{ tdl tr i Iez(J Iezt, IezU Iez(J 8r 1= r)$r I a, a sf I J aJ TI I oJ NI tafo a I ro NICO (f t ! (o <tIo FlIo ({Io (n I6 tt Io t') /AceAnalytical.' PACE ANALYTICAL 1673 Terr. Av€nue Sheridan, WY 82801 ph (307) 672-8945 faxr (3071 672'605.i Average weight ol cans: 74.4 g Average weight of cans and Charcoal: 255 g List of cans shipped; 1A thru 35A I . 3 ? Date shipped: 312712A23 Radon Flux Canned Collection Media ," l/ 4try1 My\,?3 The canisters and activated charcoal are baked at .l 10 degrees Celsius for at least 24 hours, allowed to cool, capped and sealed. A minimum ol '10 percent are randomly checked for radon before they are shipped. Detector: Nal Area Counts Count Time Date Date Can #<100 Seconds CPM Checked Prepped 3A 0 600 0.0 312312023 312212023 14A 0 600 0.0 3/23/2023 3t22t2023 16A 0 600 0.0 312312023 3t22y2023 33A 0 600 0.0 312312023 3122/2023 lnter-Mountain Laboratoies, lnc,Page I ot I NORTH WEST SOUTH WEST Anrrruo Rrsounces Houotrue Conp. SxooteRtue Carvott Mtt-t- UT Arn Queurv lD 14169 Tatl-tNes Cell Gnto 2023 Raooru Fuux Rrsulrs Gnro Krv RnooN Fr-ux Resurt rN pCi/m2-sec 41H-zs 4rA -24 4'tH -23 4rH -22 41H -21 4rH-20 4rH -18 4rH -1 8 4rH -17 4rH -16 4rH-1 5 4rH -14 4rH -1 3 4rH -12 4rH -11 4rH-1 o 4TH -8 4TH -8 4It1 _l 4rH -6 4rH-s 4rH 4 4TH -3 4TH .2 4rH -1 3RD - 25 3RD - 24 3RD - 23 3Ro -22 3RD - 21 3RD - 20 3RD - 19 3RD - 1g 3RD - 17 3RD - 16 3Ro - 15 3RD - 14 eRD - l?3RD - 12 3RD-11 3RD - 1o 3RD-9 3R0-g 3Ro-7 3RD-6 3RD_5 3RD -4 3RD-3 3RD.2 3RD. 1 2ND-25 2No-24 2No-23 zND-22 2ND-21 2ND-20 2No-1 9 2ND-1 I 2ND-1 7 2ND-1 6 DUP 26 2No-1 5 2ND-14 2ND-1 3 zND-12 2No-1 1 2No-1 o 2No-g 2ND-8 z{o-7 2ND-6 2ND.5 2ND4 2ND.3 2ND.2 2ND-l lsr - 25 DUP 26 1$1 -24 lsr - 23 1sr -22 1sr - 21 lsr - 20 1sr - lg 1sr - 1g 1sr - 17 1sr - 16 1sr - 1s 1sr - 14 isr - 13 1sr - l2 lsr"1l 1sr - 10 lsr-g 1sr-8 1sr - z lsr-6 1sr -5 1sr - 2 1sr - 3 1sr - 2 1sr - 'l NORTH EAST J I H G F E D c B A DATA SET SUITiIUARY MrNtrrltuHlt oCilm2-sec Mexruuu pCi/m2-sec SrRruonRo DEVIATION nCi/m2-sec AVERAGE oCi/m2-sec 10e876s432lt=oolT DC#_Title: ENV-FRM-SHRT-0033 v02_Condition Upon Receipt Form Terra Lab Eff ective Date'. 4124 12023 Survey Meter # ,r".,1J.'".I$3l,l Condltion Uoon Receipt (Attach to COC) Samnle-Bereinr 1 Number of ice chests/paclages received , . ,! ROI? Yes @Note as 'OfC'ifsamples arc receMed ovd the counter, unpdckdgod Model 2241-2; SN 182119 HC210330 221511272 2 Temperature of mde than 8 coorers, obtaln en additional CUR fdm, Temps Observed Temps Corrected Accedable ls: 0.1" to lfc fq Bacteria; and 0,1" to 6'C fq most othd water pa/,g,nPJlers. Samples may not have had adequate lime to cool followtng cdl*tion. lndicate ROI (Received on lce) fu iced samples received on the s€me day as sanpled, in additbn to tempsatwe at receipt @,@ Yes @ @ Yes @ No No No No N/A N'A N/A @ No q. -Q) Jao/l ot ('i"r1o,', 1Aq.ff )^6. Date/Time Added: Filtxed and preselved in metals 3 Emission rate of samples for radiochemical analyses < o.SmFi/hr? 4 COC Number (lf applicable): 5 Do the number of bottles agree with the COC? 6 Were the samples received inlacl? @o brokm botttes, teake, etc.) 7 Were the sample custody seals intact? I ls the COC properly completed, legible, and signed? Samote Vertficatlo ion 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: _ Totral Metals _ Diss Metals _ Nutrient _ Cyanide _ Sulfide _ Phenol SDWA Rads Final pH (if added in lab):Preservative/Lot# HNOg No l,{€. YD k," u ce,, #) qrrl _ Total Metals _ Diss Metals _ Nutrient _ Cyanide _ Sulfide _ Phenol _ SDWA Rads Filtered and preserved in metals HzSOr- NaOH ZnAcet HzSOo HNOs 5 VOA vials have <6mm headspace? 6 Were all analyses within holding time at the time of receipt? 7 Have rush or project due dates been checked and accepted? 8 Do samples require subcontracted analyses? lf Yes', which type of subcontracting is required? General Sample Receipt, Verification, Login, Labeling & Distribution completed Yes No @No Yes No Yes @ Customer-Speqified by (iniilats)'. 0I Method ofContact: _ Phone: Email: @ @ Certified f vo'1799SetlD; Discrepancv-Documentaiion (use back of sheet for notes on discrepancies) Anv items listed above with a rcsponse of "No* or do not meet specifications must be resolved. Person Contacted: lnitiated By: Date/Time: Problem: Resolution: Qualtrax lD: 70962 Pace@ Analytical Services, LLC Page 1 of1 C-l &;v,,ir.l,*'1,q} Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Date: 412812023 CLIENT: Anfield Resources CASE NARRATIVE Project: SHOOTARING CMP-UT AO lD 14169 Report tD: 52304348001 Lab Order: 52304348 Entire Report Reviewed by: Wade Nieuwsma, Laboratory Operations Manager 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 141EP460012-78-054 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 USDA Handbook 60 Soil Survey Laboratory Manual Ver 4.0 ASA/SSSA 9 Methods of Analysis Part2, 1982 JSSSA Methods of Analysis Book 5 Part 3, 1996 er 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 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 31 of 1 26 '*fl.r{r*,L,Ch Pace Analytical 1673 TenaAvenue Sheridan, WY 82801 ph: (307) 672-8945 Date: 412812023 Definitions RL Reporting Limil Qualifiers * Value exceeds Maximum Contaminant Level A Check MSA specifications B Analyte detected in the associated Method Blank C Calculated Value D Report limit raised due to dilution E Value above quantitation range G Analyzed at Pace Gillette, WY laboratory H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits L Analyzed by another laboratory M Value exceeds Monthly Ave or MCL or is less than LCL ND Not Detected at the Reporting Limit O Outside the Range of Dilutions R RPD outside accepted recovery limits: Spike Recovery outside accepted recovery limits Analyte below method detection limit X Matrix Effect Page 2 of 2 Anlield Resources Holdins corp. - shootarlig"?H%l3l-r?l?i1,3i#23 Radon Flux Measurement Report ltJl {n,,tryi1,fh Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: AnfieldResources 3346 W. Guadalupe Rd. Apache Junction, M 85210 Project: SHOOTARING CMP-UTAQ lD 14169 COC: Date Reported: 412812023 Report lD: 52304348001 Work Order: 52304348 Date Received: 412612023 Sampler: Lab lD:s2304348-001 Collection Date: 412412023 1 1 : 17:00 AM Matrix: SolidClient Sample lD: Co Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023 09:16 WN EPA 11516.5 0.5 Lab lD: 52304348-002 Collection Qalsi 412412023 1 1 :1 7:00 AM Client Sample lD: C7 Matrix: Solld Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023 09:40 WN EPA 11523.2 0 5 Lab lD: 52304348-003 Collection Date: 412412023 11:17:00 AM Client Sample ID: C8 Matrix: Solid \nalyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 22.7 0.5 pCi/m2-sec 0412712023 09:52 WN EPA 115 Lab lD: 52304348-004 Collection Date: 412412023 '11:17:00 AM Client Sample lD: C9 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCiim2-sec 0412712023'10:04 WN EPA 11511.9 0.5 Lab lD: 52304348-005 Collection Date: 4124120231'l:17:00AM Glient Sample lD: C10 Matrix: Solid Anal)rses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023 10:15 WN EPA 1 '1 55.3 0.5 Lab lD: 52304348-006 Collection Date: 412412023 11:20:00 AM Client Sample lD: D1 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023 10:26 WN EPA 11521.1 0.5 These results apply only to the samples tested. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - zozgRadon Flux V"r.ur".!n?$?$nof S December 28, 2023 - Page 33 of 1 26 {,r,,rn*r,,:ft Pace Analytical 1673 Tena Avenue Sheridan, WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UTAQ lD 14169 coc: Date Reported: 412812023 Report !D: 52304348001 Work Order: 52304348 Date Received: 412612023 Sampler: Lab lD: Client Sample lD: D2 s2304348-007 Collection Date: 412412023 1 I :20:00 AM Matrix: Solid Analyses Result RL Qua! Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023 10:28 WN EPA 11515 3 0 5 Lab lD: S2304348-008 Collection Date: 412412023 '11:20:00 AM Glient Sample lD: D3 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023 10:49 WN EPA 1'1514.8 0.5 Lab lD: 52304348-009 Collection Date: 412412023 11:19:00AM Client Sample lD: D4 Matrix: Solid Result RL Qual Units Date Analyed/lnit Method Radon Flux Radon-222 15.7 0.5 pCi/m2-sec 0412712023 11:00 WN EPA 115 Lab !D: 52304348-010 Collection Date: 412412023 11:19:00AM Client Sample lD: D5 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023 11:12 WN EPA 11515.5 0.5 Lab lD: 52304348-011 Collection Date: 412412023 11:19:00AM Client Sample lD: D6 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023 11:34 WN EPA 1'1512.2 0.5 Lab !D: 52304348-012 Collection Date: 412412023 11:19:00AM Client Sample lD: D7 Matrix: Solid Analyses Result RL Qual Units Date Anallzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023 11:46 WN EPA 11515.5 0.5 These results apply only to the samples tested. Paoe2 of 5 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux MeasurementHeport December 28, 2023 - Page 34 oI 126 ,/t,/ {;1,'ttt*lit,*lt Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UTAQ lD 14169 COC: Date Reported: 412812023 Report lD: 52304348001 Work Order: 52304348 Date Received: 412612023 Sampler: Lab lD: Client Sample lD: D8 s2304348-01 3 Collection Date: 412412023 1 1 :1 8:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023 11:57 WN EPA 11523.8 0.5 Lab lD: 52304348-014 Collection Date: 41241202311:'18:00AM Glient Sample lD: D9 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023'12:09 WN EPA 115o.7 0.5 Lab lD: 52304348-015 Collection Date: 412412023 11:18:00 AM Client Sample lD: D10 Matrix: Solid \nal)rses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 2.6 0.5 pCi/m2-sec 0412712023 12:20 WN EPA 115 Lab ID: S2304348-016 Collection Date: 412412023 11:16:00 AM Client Sample lD: E1 Matrix: Solid Analyses Result RL Qual Units Date Analyed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023 12:31 WN EPA 11512.4 0.5 Lab lD: 52304348-017 Collection Date: 412412023 11:16:00 AM Client Sample lD: El DUP Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023 12:46 WN EPA 11513.8 0.5 Lab lD: 52304348-018 Collection Date: 412412023 1 1:16:00 AM Client Sample lD: E2 Matrix: Solid Anal)rses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023 12:57 WN EPA 1159.2 0.5 These results apply only to the samples tested. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14'169 - 2u2gRadon Flux fr/"".rr"rBn?$?p3o8t U December 28, 2023 - Page 35 of 1 26 ,l rrr1, 'lQ,e'r!.',fn Pace Analytical 1673 Terra Avenue Sheridan. WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UT AQ lD 14169 COC: Date Reported:. 412812423 Report lD: 52304348001 Work Order: 52304348 Date Received:. 412612023 Sampler: Lab lD: Client Sample lD: E3 s2304348-01 I Collection Date: 412412023 1 1 :16:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 10 6 0 5 pCi/m2-sec 0412712023 '13:09 WN EPA 115 Lab lD: 52304348-020 Collection Date: 412412023 11:17:00 AM Client Sample lD: E4 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023 13:20 WN EPA'l '1515.5 0.5 Lab lD: 52304348-021 Collection Date: 412412023 11:17:00AM Client Sample lD: E5 Matrix: Solid inalyses Result RL Qual Units Date Anallzed/lnit Method Radon Flux Radon-222 13.8 0.5 pCi/m2-sec 0412712023 13:47 WN EPA 115 Lab ID: 52304348-022 Collection Date: 41241202311:17:00AM Client Sample lD: E6 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 15.7 0.5 pCi/m2-sec 0412712023 13:58 WN EPA'1 15 Lab lD: 52304348-023 Collection Date: 41241202311:17:00AM Client Sample lD: E7 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023 '14:10 WN EPA 11516.1 0.5 Lab lD: 52304348-024 Collection Date: 412412023 '11:18:00 AM Client Sample lD: E8 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0412712023 14.22 WN EPA 1 I 514 4 0.5 These results apply only to the samples tested. Paoe 4 of 5 Anfield Resources Holdins corp. - Shootarli#U%H'i-r?[?,.1,3i1r?.23 Radon Flux MeasurementHeport ./ta1 {Lfrrttt*,fuX Pace Analytical 1673 Tena Avenue Sheridan, WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UTAQ lD 14169 COC: Date Reported: 412812Q23 Report lD: 52304348001 Work Order: 52304348 Date Received: 412612023 Sampler: Lab lD: Client Sample lD: Eg s2304348-025 Collection Date: 412412023 1 1 :18:00 AM Matrix: Solid Analyses Result RL Qual Units Date Anallzed/lnit Method Radon Flux Radon-222 1.3 0.5 pCi/m2-sec 0412712023 14:33 WN EPA 115 Lab lD: 52304348-026 Collection Date: 412412023 1 'l :1 9:00 AM Client Sample lD: E10 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 4.2 0,5 pCi/m2-sec 0412712023 14:44 WN EPA 115 Lab lD: 52304348-027 Collection Date: Client Sample lD: BLANK B-1 Matrix: Solid \nalyses Result RL Qual Units Date Analyed/lnit Method Radon Flux Radon-222 ND 0.5 pCi/m2-sec 0412712023 14:57 WN EPA 115 Lab lD: 52304348-028 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 0412712023 15:09 WN EPA 1'15 Lab lD: 52304348-029 Collection Date: Client Sample lD: BLANK B-3 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 ND 0,5 pCi/m2-sec 0412712023 15:25 WN EPA 115 Lab lD: 52304348-030 Collection Date: Client Sample lD: BLANK B-4 Matrix: Solid Anallrses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 ND 0.5 pCi/m2-sec 0412712023 '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 - 2023 Radon Flux MeasurementHeport December 28, 2023 - Page 37 of I 26 {)/ .{aceknlytinl Pace Analytical CLIENT: Anfield Resources Work Order: 52304348 Project: SHOOTARING CMP-UT AQ lD 14169 Radon Flux 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 ANALYTICAL QC SUMMARY REPORT Sample Type MBLK Date: Report lD: Units: pCi 4t28t2023 s2304348001 MB START (04127123 09:03) RunNo: 209895 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 MB END (04127123 16.16) RunNo: 209895 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 ND Sample Type LCSI 100 Radon Flux pciUnits RADSTD_16-1 START (04127123 07:48) RunNo: 209895 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 400 90- 110 RADSTD_16-1 END (04127123 16:26) RunNo: 209895 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 100 103 90- 110 Radon Flux 400 Sample Type LCS2 387 Units pci RADSTD_16-2 START (04/27123 08:51) RunNo:209895 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 100 3870 97.0 90- 1'103800 RADSTD_16-2 END (04127123 16:01) RunNo: 209895 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 100 90 - 110 Radon Flux 4000 Sample Type DUP 3870 104 Units: pCi/m2-sec 52304348-001 ADUP (04127 123 09:27) Analyte RunNo:209895 Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 16.3 0.5 16.5 1.48 S2304348-010ADUP (04127123 11.23) RunNo: 209895 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 15.2 05 15.5 2.37 '10 52304348-020ADUP (04t27 123 13:34) Analyte RunNo:209895 Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 16.3 15.5 4.96 S2304348-030ADUP (04127 123 1 5:49) Analyte RunNo:209895 Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 Anfield Resources Holdins Corp. - shootarligsH%lu;?Fil,3i#23 Radon Flux Measurement Report Pase 1 of 1 0)B(oIox.Eoo!oC6CfoEI,gi LUtao- lotozU)YzJms nuJFx. (_ , o_ l, ] Jx.ozZoti J(,(,o) (o otr F - o 4. " . 6NoFP3 \IzJd\rJdIDrqtlu)\roNuul\Iu Loo0,oEoooa oo.E06oG't c ooo06 .9oooooJ !o':)ooLoo!,G3ooa oIUufoTUu(,E'oo= ooFao06oLoodta Ea.9I063oJrago O) ao\tro(l )gtt )a(! f r' "t ) N -\ ! -! )' 'I /' i I x: ) Dl6B:coo00oEo6cooooqEc6coE5ooDi6oooqI-F a)q)aEooU> t4A)Eq)G{h c.9Ox.oo-):Gttooa G.Eo'- -Q-cO .- : :aUJoo_z' ;* l=E9& (! u i. cn E' = o- o_ o)co*cooC.( 6oEo o2JtroJtr tr . t 4@ 4FaoE(Y )@!'aat- - :fooztrFoTa oaiaoPGoaoos, oaot ac] o* >r ul 6c oo * C U' ; ag i (t r Lr { CO := Y _r o F Y, 2Ee B .g 3 o a (D u 3 FO 0 o.9Lootto.!aoo.lo0,E zaFIEt-ztr Jo (r ) (\ to(\ l tt- (Y ' No(\ la t r* o(!o(!o(, (! !o!o,oooxulooJ(oN o(,o6ooGo-vgmI t oooLoooGoEooooxotr :) otro,;c)oL fE'ootrGosoooo!(!J ooEt u <J3t r o2 io Fr n L L 4a - a i o o5 . Y o q ) ft a . Q = c - B vr r O oz(,zoJoTauloEJoou, troglrz oaEEl I <l tl , t . 2, 2 &o P(!o]3C)ooc)o0o,ab 0)NoooE,oI 6: )3\ISJ s go ca E <t r J^ C6 -t - .9J* , J .J *) ,1 : \! '=o -_ o rn u n 9 il E A h fr f l xl l l O x * IoE,oouJt.ooFa3olloziIa> -o = $rO ) JZ ,cg '6 o .F ' io FCo, Z- , j. !o= #o ) -= OcU;GJC6clo0)c i i i i i r r r r Ii i i >.oq I q3 € r- l l I JLLo:l (9o- EIFozoUJ ttI(. , )s0cUJF2zL'o}JG(JoutFElr | 0cUJ(,d,szI.n9=lr Jx=t!zooc, ot rO3eEotdfEtr locAJ=zoz(J(9zocoo-ta6JJUJ I3zoF3oJEcco(,Izootau,uGlota lgcoulzF2l!)I oUJFz= o-E. r EE rt lFzUJ:oL. ) lo h t2 Iv, hl) t. \, \t \, \, t? lr , + vt t+ :t - lf , vl E h o?o=6g 6 Fr ! z. t- =f8= ioo= F tt z5= EO t9+F+G rt < NF 6 ve,o\rooaz.9o-EloItNo.oIJ JGo-{ rtTr,UdoIi{,s(, tr(a2oFozo(JE, lr j !Flr . l3 u,J4Er t <6 EOI 2 o<dF L<F. t I FTG< F6 (ott l (,E, lc,J l |od. 19 ti(9E (, th(9G, (,1a(,G, (9 th(9c. (, ti(,&. (, tt t |o&, (9th(,&. (9 th|9G, (, aA (9E, (91r 1 (oG, {ovl (9&, (9 tl l |9G, (, tt t (9G, (, th(9E (, tt l (,&, >( n u :H = H 3s = E Vo rc lr lo (!o oI €o ooo r\6o vEl.o \DD5 doo Ora0ro oo o do rta.15 if .o EH =E 3} +e 2\ -o . <F !t u J 10 N6 \, \t ttoo r.Y'sb otf ,Go Fr( , l.os ool.o oo os Noo moo too ho(, FoIt\ F.oo d9s 6\ (,t oo r{o!s FzUJUJ Iz4=]a0cBIFGfdocfnmNoN ,a 9 X =E a Yo Fl II Nar . t} 1 lr rf tl rnI! rotr r\ l! €t! o| t! oF{ t! Fl (, N(9 (n(9 t(, !nI rD(! , F(, Jor r l) 2E3 (J ts( ct ,rS. ( qF tC{ \t!t ttr l t0osr q\, tS( rtq tF qct ct qt I. qa tfD tsr tl' \\ 8I 1= s. ( J .- tGl I FJ oI s( I rI !r , a 6J FI qc I (I rJ IOcl I hJ I (cJ {. { I (oI ooI ff i r f .' - L { 7a i lt t Or ! E t7 \\ l \eS +oj(, UIFozoJUJ lLo(,sOEUJ t- a=UoIc-(JoUJ l-EUIG, tr t (o&szott lI=EIx3t!zood or iol'r. le=.!ctFfEutoGo=zozL' t! ,zccoo41n6JJUJ (J9azoF3oJacoI(,zoo41^ tr l Ie3othulcctgltzFzlr JJ(J o-=EIFz= oE. C EE (! , - .J lFzlr Jo(J 16 J J -, 1. , \, &, h -t C, i t te+ * \F q9 . o=6g FU J 2t =fOZe> 6o F Li l Z =OL9 -F.l < I\ F a/ ! ri . ]oo6zoo-d=or!tNo- (J tl JGo.2oF6zo(Jtl!IkUJ3 UJAEt <6 q- GOs 3 a< dE L1 tr i FU6< F. th (, an |oG, (9 tu l (9E |9th(,d, (o th(9d (,vl |od. (9ar ' , {od. |9t/ t (,G, (9 th(9c. 19 an (9c. I I I > (Y ) l! !N <I J J hR =a SE *E <F ST E 4' O N to 3oi iJb \Js sos ssals h.oo vaIt0 lDo6 I I :H =E SE E 3 -N sf U 1o ^r o hg.s ta !e !aao +rt Itt, nnoo\ (\ .o0 ae ooo I FzuJ l, l J (l ,zo=1AOEUJFa2fc, oc(' lmNoN -6 4 Eg B €(o ot I oFl (! , o.=ooF{ lo Fl N mI sf ]aE -256 -zs6 -z5!o -zJlo FJIoo6s NIo=o@s (n tg=o@s Tr=o@5 Jo1 r l) ?E5 () to q, TDt, (Eo. (t (E\ irC' c. a til . co <ro$ q \o\ t6s{ rt l0q IezU tozs IezI IezIJ (J i tUr3= :J .t l a{I I {I FI a. l Gt I ?dJ os<J Jt FlI !o Nto (Y ) I to T6 rl Io NIo ma6 To Survey Meter # pH strip lot # Thermometer SN# Condition Upon Receipt (Attach to COC) Sample-Becaint ,4 1 Number of ice chests/packages received: ,:* , .Rol? Yes @l{ofe rs 'OfC'rfsarnpres are recaived ovet the co.)nw, unpackaged DC#_TiUe: ENV-FRM-SHRT-0033 v02_Condition Upon Receipt Form Terra Lab Eff ective D ate: 4 I 24 I 2023 27130475 2 Temperature of obtein en ddditlonal CUR Temps Observed Temps Corrected Accaplablo is: 0.1' to 10oC tq Bacteria: end 0,1'to 6"C for most othq wala' pa,,dmeters.may not heve hdd adesuate time to cod following cdlection. lndicale ROI (Received on lce) for iced samples received on the same day as sampled, in additbn to tempercture at rcceipt. 3 Emission rate of samples for radiochemical analyses < 0.SmR/hr? 4 COC Number (lf applicable): 5 Do the number of botUes agree with the COC? 6 lVere the samples received intacl? @o bokan bottles, teaki, etc,) 7 Were the sample custody seals intact? I ls the COC properly completed, legible, and signed? Samote Verincatio ion 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: _Total Mebls _ Diss Metals _ Nutrient _ Cyanide _ Sulfide ________: Phenol _ SDWA Rads Final pH (if added in lab):Preservative/Lot#Date/Time Added: HNOs Filtered and preserved in metals Filtered and preseryed in metals HNOs 5 VOA vials have <6mm headspace? 6 Were all analyses within holding time at the time of receipt? 7 Have rush or project due dates been checked and accepted? 8 Do samples require subcontracted analyses? N/A N/A N/A @ No No No No @@ Yes @ @ dES) @ No No No No -Total Metals _ Oiss Metals _ Nutrient - Cyanlde _ Sulfide _ Phenol _ SDWA Rads HzSOr NaOH ZnAcet HzSO. @No No Yes No @Yes @ lf 'Yes", which type of subcontracting is required? General Customer-Specifled Gertified Sample Receipt, Verification, Login, Labeling & Distribution completed by pnniasl: A / .-s"rra /llo>Jlt Discrcparcv-Oocsmenlation (use back of sh*t for notes on discrepancles) Anv items llsted above wlth a response of "No" or do not m*t sp*ifications must be r*olved. Person Contacted:Method of Contact: _ Phone: Email:I nitiated Byi_ Date/Time: Problem: Resolution: Yes Qualtrax lD: 70962 Pace@ Analytical Services, LLC Page 1 of 1 A*Anatyticat- Radon Average weight of cans: 74.4 g Average weight of cans and Charcoal: PACE ANALYTICAL 16T3TerreAvenu€ Sheridan,WY 82801 ph {307}672-8945 fax:(307)672.6053 Flux Canned Collection Media 255s frI A {4'v 79fr List of cans shipped:1A thru 35A Date shipped:612912023 The canisters and activated charcoal are baked at 1 10 degrees Celsius {or at least 24 hours, allowed to cool, capped and sealed. A minimum of 10 percent are randomly checked for radon belore they are shipped. Detector: Nal Area Counts Count Time Date Date Gan #<100 Seconds CPM Checked Prepped 1A 0 600 0.0 6t2712023 6h612A23 9A 0 600 0.0 6/2712A23 611612023 204 3 600 0.3 6/27/2023 611612023 35A 0 600 0.0 612712A23 611612023 I nter- l,llou ntai n Labordtoiles, ln c.Page 1 ol I NORTH WEST SOUTH WEST ANrreuo ResouRces Houotttc Conp. SHooraRtNc Ceruvoru Mul UT Arn Quaurv lD 14169 TerrHos Ceul GRro 2023 Rloor,r Ft-ux Resurrs DATA SET SUNAUANY MINTMUM pCi/mz-sec MAxTMUM oCi/m SrRruoRRo Drvtnrroru i pCilm'-sec AvERAGE I oCi/m2-sec Gruo Krv RnooN Flux Re suLr tN pCi/m2-sec 4rH-2s 4111 _24 4rH -23 4rH -22 4rH -21 4rH-zo 41t' -ia 4rH -19 41H -17 4rH -16 4rH-1 5 41H -14 4rH -13 4TH -12 4rH -11 4rH-1 o 4rH -8 4rH -B 4rH -7 4rH -6 4rH-5 4rH -4 4rH -3 4rH -z 4rH -1 3Ro - zs 3R0 - 24 3Ro - 23 3Ro - 22 3RD - 21 3RD - 20 DUP 26 3RD - lg 3Ro - 1g 3Ro - iz 3RD - 16 3Ro - i5 3Ro - 14 3RD - 13 3RD - 12 3RD - 1'l 3Ro - 10 3RD-9 3no-g 3RD-z 3RD-6 3RD*5 3RD -4 3RD-3 3RD-2 3RD.1 2Na-25 zND-24 2ND-23 2No-22 2ND-21 2ND-20 2ND-1 9 2No-1 8 2ND-17 2ND- 1 6 DUP 26 2No-1 5 2ND-14 2ND-1 3 zND-12 2ND-1 1 2ND- 1 0 2ND-9 2ND-8 2No-Z 2ND-6 2ND-5 2ND-4 2ND-3 2No-2 oND {1sr-25 DUP 26 1rr - 24 1sr - 23 1sr -22 1sr - ?1 1sr - 20 1sr - 19 1ST 18 1ST 17 1sr - 16 1sr 15 lsr-'14 1ST 13 1sr 12 1sr- 11 1ST 10 1ST - 9 1sr - 8 1ST -7 1sr - 6 1sr-s 1sr -4 1sr - 3 1sr -2 1sr - 1 NORTH EAST J I H G F E D c B A 109876s43zrtoo'.} *f7 *kv,r,l.nd,t.fr,Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Date: 712012023 CLIENT: Anfield Resources CASE NARRATIVE Project: SHOOTARING CMP-UT AQ lD 14169 3RD QTR Lab order: s23o7z1l Report ID: s2307218001 Entire Report Reviewed by: il2<---1--.--- Wade Nieuwsma, Laboratory Operations Manager Samples BLANK B-1, BLANK B-2, BLANK B-3, BLANK B-4, F1,F10,F2,F3,F4, F5, F6, F7,FB, F9, G1, G10, G10 DUP, G2, G3, G4, G5, G6, G7, G8, G9, H1, H2, H3, H4 and H5 were received on July 17 ,2023. 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 DA Handbook 60 Survey Laboratory Manual Ver 4.0 ^-tuSSSA 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 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 45 of 1 26 ,,4Jl &r;1(,Pace Analytical,lne\tr61 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Date:712012023 Definitions RL Reporting Limit Qualifiers * Value exceeds Maximum Contaminant Level A Check MSA specifications B Analyte detected in the associated Method Blank C Calculated Value D Report limit raised due to dilution E Value above quantitation range G Analyzed at Pace Gillette, WY laboratory H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits L Analyzed by another laboratory M Value exceeds Monthly Ave or MCL or is less than LCL N Sample analyzed outside of compliance requirements ND Not Detected at the Reporting Limit O Outside the Range of Dilutions Sample preserved in lab at time of receipt RPD outside accepted recovery limits S Spike Recovery outside accepted recovery limits U Analyte below method detection limit X Matrix Effect Page 2 oI 2 Anfierd Resources Holdins corp. - shootarilg"?H%|E l;?l?il,3i,;?r23 Radon Frux Measurement Report t4,i qr,'{r{f,1,&1*h Pace Analytical '1673 TerraAvenue Sheridan, WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UT AQ lD 14169 3RD QTR COC: Date Reported: 7 12012023 Report lD: 52307218001 Work Order: 52307218 Date Received: 7 117 12023 Sampler: RG/SG Lab lD: Client Sample iD: F1 s230721 8-001 Collection Date: 711512023 10:15:00 AM Matrix: Solid Analyrses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711812023 09:49 WN EPA'1 1513.9 0.5 Lab lD: 52307218-002 Collection Date: 711512023 10:14:00 AM Glient Sample lD: F2 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711812023 10:13 WN EPA 1159.0 0.5 Lab lD: 52307218-003 Collection Date: 711512023 10:13:00 AM Client Sample lD: F3 Matrix: Solid \nalyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 14.2 0.5 pCi/m2-sec 0711812023 1 0:24 WN EPA 1 'l 5 Lab lD: 52307218-004 Collection Date: 711512023 10:12:00 AM Client Sample lD: F4 Matrix: Solid Anal)rses Result RL Qual Units Date Anallped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711812023 '10:36 WN EPA 11519.5 0.5 Lab lD: 52307218-005 Collection Daie: 711512023 10:10:00 AM Client Sample lD: F5 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 22.9 0.5 pCi/m2-sec 0711812023 10:47 WN EPA 115 Lab lD: 52307218-006 Collection Date: 711512023 10:'10:00AM Client Sample lD: FO Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 4.5 0.5 pCi/m2-sec 0711812023 10:59 WN EPA 115 These results apply only to the samples tested. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14165 - 2[23Radon Flux ffl"".rr"r3n?$?J"n'U December28,2023 - Page 47 ol 126 .{ta/ *Jtr$lr.*&tl&.Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: AnfieldResources 3346 W. Guadalupe Rd. Apache Junction, M 85210 Project: SHOOTARING CMP-UT AQ lD 14169 3RD QTR coc: Date Reported: 7 12012023 Report lD: 52307218001 Work Order: 52307218 Date Received: 7 117 12023 Sampler: RG/SG Lab lD: Client Sample lD: F7 s230721 8-007 Collection Date: 7 11512023 1 0:08:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711812023 11:10 WN EPA 115101 0.5 Lab lD: 52307218-008 Collection Qzlsl 711512023 '10:07:00 AM Client Sample lD: F8 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711812023 11:22 WN EPA 11566 0.5 Lab lD: 52307218-009 Collection Qalsi 711512023 10:06:00 AM Glient Sample lD: F9 Matrix: Solid \nalyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 35 05 pCi/m2-sec 0711812023 11:33 WN EPA 115 Lab lD: 52307218-010 Collection Dale: 711512023 10:05:00 AM Client Sample lD: F10 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711812023 11:44 WN EPA 1155.8 0.5 Lab ID: 52307218-01 I Collection Date: 711512023 10:08:00 AM Client Sample lD: G1 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711812023 12:08 WN EPA 1'1519.0 0.5 Lab lD: 52307218-012 Collection D.sle: 711512023 10:09:00 AM Glient Sample lD: G2 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711812023'12:20 WN EPA 11524.1 0.5 These results apply only to the samples tested. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - zozgRadon Flux V"r.rr"rB#$?i",?t U December 28, 2023 - Page 48 of 1 26 ./tCi &,'r, Pace Analytical,rllxl,1,,Jh 1673 TerraAvenue Sheridan, WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: AnfieldResources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UT AQ lD 14169 3RD QTR coc: Date Reportedt 7 l2Ql2Q23 Report lD: 52307218001 Work Order: 52307218 Date Received: 7 117 12023 Sampler: RG/SG Lab lD: Client Sample lD: G3 s230721 8-01 3 Collection Date: 711512023 10:10:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 25.3 0.5 pCi/m2-sec 0711812023 12:33 WN EPA 115 Lab lD: 52307218-014 Collection Date: 711512023 10:11:00 AM Client Sample lD: G4 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 22.2 0.5 pCi/m2-sec 0711812023 12:44 WN EPA 115 Lab ID: 52307218-015 Collection Date: 711512023 10:12:00 AM Client Sample lD: G5 Matrix: Solid \nalyses Result RL Qual Units Date Analyed/lnit Method Radon Flux Radon-222 16.4 0.5 pCi/m2-sec 0711812023 12:55 WN EPA 1 15 Lab lD: 52307218-016 Collection Date: 711512023 '10:13:00 AM Client Sample lD: GO Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 12.6 0 5 pCiim2-sec 0711812023 13:07 WN EPA 115 Lab lD: 52307218-017 Collection D,ale 711512023 10:'14:00 AM Client Sample lD: G7 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 13.2 0.5 pCi/m2-sec 0711812023 1 3:1 8 WN EPA 1 1 5 Lab lD: 52307218-018 Collection Date: 711512023 10:15:00 AM Client Sample lD: G8 Matrix: Solid Analyses Result RL Qual Units Date Anallzed/lnit Method Radon Flux Radon-222 7.2 0.5 pCi/m2-sec 0711812023 13:31 WN EPA 'l 15 These results apply only to the samples tested. Paoe 3 of 5 Anfield Resources Holdins corp. - Shootaligsry%l[lr.+""11,Si#23 Radon Flux MeasurementHeport Pace Analytical ,rtC/ ,r{' n,tnd$,1:H '1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: AnfieldResources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UT AQ lD 14169 3RD QTR COC: Date Reported: 7 12012023 Report lD: 52307218001 Work Order: 52307218 Date Received: 7 117 12023 Sampler: RG/SG Lab lD: Client Sample lD: Gg s230721 8-01 I Collection Date: 711512023 10:15:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711812023 '13:42 WN EPA 11512.3 0.5 Lab lD: 52307218-020 Collection Date: 711512023 10:'16:00AM Client Sample lD: G10 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 12.9 0.5 pCi/m2-sec 0711812023 13:54 WN EPA 115 Lab lD: 52307218-021 Collection Date: 711512023 10:16:00 AM Client Sample lD: G10 DUP Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 15.9 0.5 pCi/m2-sec 0711812023 14:16 WN EPA 115 Lab lD: 52307218-022 Collection Date: 711512023 10:08:00 AM Client Sample lD: H1 Matrix: Solid Analyses Result RL Qual Units Date Anallzed/lnit Method Radon Flux Radon-222 pCiim2-sec 0711812023 14:28 WN EPA 11524.1 0 5 Lab lD: 52307218-023 Collection Date: 711512023 10:08:00 AM Client Sample lD: H2 Matrix: Solid Anal)rses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711812023 14:39 WN EPA 11517.9 0.5 Lab lD: 52307218-024 Collection Date: 711512023 10:07:00AM Client Sample lD: H3 Matrix: Solid Analyses Result RL Qual Units Date Analyed/lnit Method Radon Flux Radon-222 pCiim2-sec 0711812023 14:51 WN EPA 11518.6 0.5 These results apply only to the samples tested. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2u23Radon Flux ffl"".rr"rnFnlflB$not S December 28, 2023 - Page 50 of 1 26 J/ {,t'rrr.rtI,|{Jn Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: AnfieldResources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UT AQ lD 14169 3RD QTR coc: Date Reported: 7 12012023 Report lD: 52307218001 Work Order: 52307218 Date Received: 7 117 12023 Sampler: RG/SG Lab lD: Client Sample lD: H4 s230721 8-025 Collection Date: 7 I 1512023 10:06:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711812023 15:02 WN EPA l1514.8 0.5 Lab lD: 52307218-026 Collection Date: 711512023 10:05:00AM Client Sample !D: H5 Matrix: Solid Analyses Result RL Qual Units Date Anallped/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711812023 15:14 WN EPA I1522 5 0.5 Lab lD: 52307218-027 Collection Date: Client Sample lD: BLANK B-1 Matrix: Solid \nalyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 ND 0.5 pCi/m2-sec 0711812023 1 5:25 WN EPA 1 1 5 Lab lD: 52307218-028 Collection Date: Client Sample lD: BLANK B-2 Matrix: Solid Anal)rses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 ND 0.5 pCi/m2-sec 0711812023 15:37 WN EPA 115 Lab lD: 52307218-029 Collection Date: Client Sample lD: BLANK B-3 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711812023 15:49 WN EPA 115ND 0.5 Lab lD: 52307218-030 Collection Date: Client Sample lD: BLANK B-4 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 0711812023'16:01 WN EPA 115ND 0.5 These results apply only to the samples tested. Paoe 5 of 5 Anlield Resources Holdins corp. - shoota1igr?}l%!3'l ,?l?L11si.l j.r23 Radon Flux MeasurementHeport f')/ .{aceknfiat Pace Analytical CLIENT: Anfield Resources Work Order: 52307218 Project: SHOOTARING CMP-UT AQ lD 14169 3RD QTR Radon Flux 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 ANALYTICAL QC SUMMARY REPORT Sample Type MBLK Date: 712012023 Report lD: 52307218001 Units: pCiim2-sec MB END (07/18/23 '16:39) RunNo: 2'12425 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 MB START (07118123 09:34) RunNo: 212425 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 ND Sample Type LCS1 Units: pCi/m2-sec 30 Radon Flux RADSTD 16-1 STRAT (0711812307:01) RunNo: 212425 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 98.3 90-110 RADSTD 16-1 END (07 118123 16:52) RunNo: 2 1 2425 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 11090-30 Radon Flux 380 Sample Type LCS2 387 97.6 Units: pCi/m2-sec RADSTD 16-2 STRAT (07118123 09:20) RunNo: 212425 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 90 - 110 RADSTD 16-2 END (07118123 16:24) RunNo: 212425 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 30 90 - 110 Radon Flux 391 0 Sample Type DUP 3870 101 Units: pCi/m2-sec S2307218-001ADUP (07118123 10:02) RunNo: 2'12425 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 15.0 13 9 7 98 S2307218-010ADUP (07118123 11:57) RunNo: 2'12425 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 5.8 4.60 100.56.1 52307218-020ADUP (07/18/23 14:05) RunNo:212425 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 12.9 12.9 S2307218-030ADUP (07118123 16:12) RunNo:212425 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 Anfield Resources Holdins Corp. - Shootariigjry%l! i;?l?,.1,3i.,;?r23 Radon Flux Measuremenl Report Page 1 of 1 oulvfouJuLtoo= aot- (t ,o, Lod6'oooo a.9 1 IOE3oJjsm {Looo o, (0-$oo.tog!(t f t, !E.aLfo$oz otuFx.oo- uJx.ozzot!C, J (oco (oF.FNF-o(tuzJN\r \Nu)te)utuu)\Ioil\I{vl\I(N oooooqoctoDo oaooIpooo oE06o(! c(Eo06 .9.EooOoJ oLooorcIE=oo@ A_ -3 FrFx. LLz(J a:oooofcooo6Ecoocooqo2EcocoEloopi6"9o.dI-F a)a)\ooa)abCD0) t1)0)$u){ c.oox-o(!):ooo G.0) 't r;O .: :U; c' u J oo .E o- ozE< + t oi = s> t 3 63 C- - (I i : = 3 E' B oo _ o _ o eCv6*E oO tFaEF$o) (o\ioaF- fo- (- )zx. t-ooI o.I ,ofoo(!ooooaxu. looJI@N oLGotoUa! !oLl!ot$ +ioooooo.Eo!oooxof goEoo$og(!o.oGJ oaIOrGqoPqabq 6ta(f , o_ (E c lc O T E ED X AE ; (! LN E o. - =B Y f, o r - Y, t o- . : fl I u-a L t gf , E @g = 83 f l o=ozoJoItt ) uJotr .ooul x,out oll JJo-Eo uJ=t- t] . l t-o Af, r- .3 t .o4 oocl '-og.Dtqf, It, !J L I F - <a a L o o5 ! 0 ) c ) 6U ) 9 = S >U ) L ^ 6- t 3(s:' J -suJ \\v -r . t a( . f_ 0)o X, ^ O Lx :' ro B( / ) 6 tL ] I x[ I n d . , r . IoEoou,&oo1-ofoILoza)ta.c l - (E 5 Jo ) c6GO EY r$o; == tC L$OP +. ;i ci -a )Ff,EF G .{ lJ -ojo lr JFozalr | Lt - I(Jsol ut l- tr ,=(. )oU&(Jout lJuJ/,r! |9E,3zIthI=lr lxfllzooc, or to t{rto=IdEFfbr6OEEJ=zozL) l9z0cFoo4IAEJ)JUUVI)FzoF-3oJ4EoI|9zoo-1^ l!t- t 0aDotaLtEoUrzFzUJU CLUFz 6E- c EE +r ;r E r \> : sE I T u) s{ Gf \ C, ( cf c. I 3t $( G{ c{ $l s{ N ta a{ .8=6d FU zl - lf8= oo F uzE= t9 Ld$< NF tttotuooozLoo-G, fot<tNo-UUd. CL!, ilEI(tlfr, t,2oEozoU&,U-FUJ= uJ.LE* <6 6-os ootNF"o o4I ;' , o) aoI t^cI doI NDaI ts a ,onI \> - ,oI €oI tl I c5I {3o) I-DI L$I goI to) 3 o< rLn= l! qFr6< Fql (, tt ' l (,E (, lt , (9G, (9 ta(9G, (9 .n(,E. |9rh(9d. (,V, (,G, (9v)(,d. (, ta(9G. (,vt (9E.I (9 tAuE, (, tn(9E (, ta(9G, (9tt l (, t (, tl l(, t (9 tt 1(,E, (9ah |9G. (, th19G. >( n uJ =H . = H Es i s r a, ta h o G oc{ h s u. CY (nst bn hfl s- f r{ sr 0N ot' ( \ t TH =E SE Ir : Ed FS U Zd -N O oo o\ ila \o\ {o,a o (q Ir ro trot \ta Fo NoI ho t. (o o(, zlr t lr t (9z4=t^c, IIocDct IFiimt\ loN zo 3P 5 *g g (o I N 6 C' T oF{E F{ N m sf ln rD c=oII F o o) oF{ F{ )or * l) 2E3 U to( q{) st q\, ss{ qlO \ tlOs( eo rts( \9\ t1. .r{ sVr rq tt. Qa, qq st l. 8I 1= FJ VtJ (\ a I +a r{ S- r I ')J F.$I O-J lDs{ I I (r l I o-l hI sr I {-s(! vt saI c{J "l LLo"lU(9o- UJFozoUJ tlo(Js0c l, l JFtl l=uo(JE()oUJ Ltr t!0cu, t (o0c3zItaI=utx=l!zooG, ol rOr{ l'e=G=c,aF,bgl6Gc==zozc,zc.FooIUIEi JJUUVt Jal-zotr(JoJAG,oIJIzao-ta lr , (,c3oth lr l OEogrzFz[lJ(J CLUFz oE- c EE (! , - FzUoU 6a c( c{ .. . cl o a\ t o9 . o=6g FU zl=f ,o= (J > oo F uzE= EOL9 -F4GNF rooozoo-d. foIstNILoUJG,42oE6zoUcc lr JFU= \3 CL -E r .< 6 -c o r5 #E. .n L oI l-o) a6I r,5I I r$-t\) st oI \t $I A'oIs.iI 6I6) ,a\-oI ooIaoI D.l )FaI J 6< Jiu!n= !u u FL6< F (9 th|9&. (9vl (9t (,vj It (9 tn(9E, (9an (9E (J tn|cG, (, ta|9G, (, th(,G, (,vt (9G. I I E, r = * < r- { >s t E ad N hia\ \t o (F ocl dcl t. hrl r$\ o:: I a E$ l = a ro ua Oro o s3 m h \!a\ o zUJ t!IzB=thElr t 0c fdFr+(n tr {oN zo EE g N m <l ln ro l\ € o) or{ vzsro Yzso Yzso -zsCO F{Ia.)aco5 NIrDo6I (n Io.Doco5 Tcfoo3 )ol r l) >rEU Ito\ (co(\ I ti{ ls( tO. <$ , .{<{ $I.N t? qs( t'o tfD tt\ \\ \T Io2(, IozU tozl. , Ioz(J U+ uL1= rtI a h(\ l a rJ \,J aJ ?J \ts{J JI F{I t0 NIco mICo ato Io NIo mIo \lIo NORTH WEST SOUTH WEST Aurrrto Rpsounces Holorr.rc Conp. SxooranrNc Caruvoru Mul UTArn Qualrrv lD 14169 TRrr-rwss Celu Gnro 2023 Raoon Flux Resulrs GRID KEY RRooN Fr-ux nesulr rN oCi/m2-sec 4rH-25 4rH -24 41H -23 4rH -22 41H -21 4111-20 4rH -18 4rH -18 4rt _17 4rH -16 4rx-1 5 4rH -14 4rH -13 4rH -12 4rH -1 1 DUP 26 4rH- 1 o 4TH .8 4TH -8 4rH -7 4TH -6 4rH-s 4rH -4 4TH .3 41n -2 4rH -1 3RD - 25 3Ro - 24 3RD - 23 3Ro -22 3RD - 21 3RD - 20 DUP 26 3RD - 19 3RD - 1g 3Ro - 17 3RD - i6 3Ro - ls 3RD - i4 3RD - 13 3RD - 12 3RD - 11 3Ro - 10 3RD .9 3Ro-8 3RD-z 3RD-6 3RD-5 3RD -4 3RD-3 3RD-2 3RD-1 2ND-25 zNa-24 2ND-23 zND-22 zNo-21 2ND-20 zND-1 g 2ND-1 g 2No-17 2ND-16 DUP 26 2No-1 5 2ND-1 4 2ND- 1 3 2ND-12 2ND,1 1 2ND-i o 2ND-9 2No-g 2ND-7 2ND-6 2ND.5 2No-4 2ND-3 zNo-2 2ND-.I 1sr - 25 DUP 26 lsr -24 1sr - 23 1sr -22 1sr - 21 1sr - 20 1sr - 19 1sr - 18 lsr 17 1sr - 16 1sr 15 1sr -14 lsr - 13 1sr 12 1sr - 'l 1 1sr- 1o 1ST - 9 1sr - 8 1sr- 7 1ST -6 1sr t 1sr -4 1ST - 3 1sr -2 1ST - 1 NORTH EAST J I H G F E D c B A DATA SET SUMMARY MINIMUM oCi/m'-sec MAXIMUM pCi/m2-sec STANDARD DEVIATIoN pCi/m2-sec AvrRecr pCi/mz-sec 10s876s4i2rt$t} F*Anatyticat' Radon Average weight of cans: 74.4 g Average weight of cans and Charcoal: PACE ANATYTICAL 16T3TerraAvenu€ Sheridan,WY 82801 ph:{307)672-8945 la;:(307)672-6053 Flux Canned Collection Media List of cans shipped:1A thru 35A 255 g IA lb(v 4rfr uo"ru ' ?74,fr Date shipped: 1AhBl2023 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: Na! Area Counts Count Time Date Date Can #<100 Seconds CPM Checked Prepped 3A 2 600 4.2 1011712023 1Alsl2023 7A 0 600 0.0 10t17t2023 1A1512023 104 0 600 0.0 1A11712023 101512023 15a 6 600 0.6 1011712023 10/5t2023 lnter-Mauntai n Labofi'orte5, lnc.Page 1 ol 1 DC#_Tltle: ENV-FRM-SHRT-0033 v02_Condition Upon Receipt Form Terra Lab Ef fective D ale:. 4 I 24 I 2023 Sample-Beceipl 1 Number of ice chests/packages received:L No No No Filtercd and preseved in metals HzSOo - NaOH ZnAcel 5 VOA vials have <6mm headspace? 6 Were all analyses within holding time at the time of receipt? 7 Have rush or project due dates been checked and accepted? 8 Do samples require subcontracted analyses? lf 'Yes', which type of subcontracting is required? General Sample Receipt, Verification, Login, Labelirg & Distribution eompleted by Discreoancv Docum (use back ofsheetfor noteson discrepancles) Anv ltems lided above with a resoonse of 'No" or do not m*t speclficatlons must be resolved. Porson Contacted: @ @ Yes No GNO Yes NoYes O Customer-Specified (initiats)i 0l SetIDr Certified I)tttoqz Method ofContact: _ Phone: Email:lnitiated By: Date/Time: Problem: Resolution: Suwey Meter # Model 12SA; SN 136491 pH strip lot # HCHCS'|2502 Thermometer SN# 271 30475 Condition Upon Receiot (Attach to COG) ROr?Yes E YesG @@ EB N/A N/A N/A @ No No No No No Final pH (if added in lab): _ Total Metals _ Diss Metals - Nutrient _ Cyanide - Sulftde _ Phenol _ SDWA Rads tlote as'OTC' il samples ara receivad over the counlq, unpackaged 2 Temperature of mdethan I obtatn an additional CUR Temps Observed Temps Corrected Acceptable ls: 0.1" to 10'C tu Baclqia: and 0.1' lo 6"C lot ,tust dhet wetet paremeters. Samples may nol have had ddequate time to cool fdbwing coilection. lndicata ROI (Raceived on lce) fu iced samples received on lhe same day as sampled, in addition to letvqatwe at roceipt. 3 Emission rate of samples for radiochemical analyses < 0.5mFi/hr? 4 COC Number (lf applicable): 5 Do the number of bottles agree with th6 COC? 6 Were the samples received inlact? (no broken bottles, leaks, otc.) 7 Were the sample custody seals intact? 8 ls the COC properly completed, legible, and signed? Samole Verincatio ion 1 Were all requested analyses understood and appropriate? 2 Did the bottle labels correspond with the COC information? 3 Samples collected in method-prescribed containers? 4 Sample Preservation: pH at Receipt: _ Total Metals _ Oiss Metals _ Nutrient - clranide _ Sulfide _ Phenol _SDWA Rads Preservative/Lot#Date/Time Added: HN03 Filtaed and preserved in metals HrSOl HNOs Qualtrax lD: 70962 Pace@ Analytical Services, LLC Page't of 1 Ji {lt,{t3sr.lmr Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Date: 111912023 CLIENT: Anfield Resources CASE NARRATIVE Project: SHOOTARING CMP-UT AQ lD 14169 4TH QTR Report tD: 52311097001 Lab Order: S2311097 Entire Report Reviewed by: Wade Nieuwsma, Laboratory Operations Manager SamplesBLANKB-1, BLANKB-2, BLANKB-3, BLANKB-4, H10, H6, H7, H8, H9, 11,l'10, 12,13,14,15, 16, 16-DUP, 17, lB, 19, J1, J10, J2, J3, J4, J5, J6, J7, J8 and J9 were received on November7,2023. 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 DA Handbook 60 Survey Laboratory Manual Ver 4.0 notuSSSA 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: Pagel of2 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site '14169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 59 of 1 26 Pace Analytical .rn,t *ttr,'lnr&r'{rt 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Date: '111912023 Definitions RL Reporting Limil Qualifiers * Value exceeds Maximum Contaminant Level A Check MSA specifications B Analyte detected in the associated Method Blank C Calculated Value D Report limit raised due to dilution E Value above quantitation range G Analyzed at Pace Gillette, WY laboratory H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits L Analyzed by another laboratory M Value exceeds Monthly Ave or MCL or is less than LCL N Sample analyzed outside of compliance requirements ND Not Detected at the Reporting Limit O Outside the Range of Dilutions Sample preserved in lab at time of receipt RPD outside accepted recovery limits S Spike Recovery outside accepted recovery limits U Analyte below method detection limit X Matrix Effect Page2 ol 2 Anfield Resources Holdins Corp. - ShootarligjH%)El-r.jl""Ll,3i#23 Radon Flux Measurement Report Ji e;{.,,1pi;rp.,131 Pace Analytical 1673 Terra Avenue Sheridan. WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: AnfieldResources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UT AQ lD 14169 4TH QTR Date Reported: 11 1912023 Report lD: S2311097001 Work Order: S2311097 Date Received: 11 17 12023 COC: Sampler: RG/SG Lab lD:s231 1 097-001 Collection Date: 1 11512023 1 1:16:00 AM Matrix: SolidCiient Sample lD: H6 Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 86 05 pCi/m2-sec 1110812023 08:30 WN EPA 115 Lab lD: 52311097-002 Collection Date: 11151202311:17:00AM Client Sample lD: H7 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 7.3 0.5 pCi/m2-sec 1110812023 08:52 WN EPA'1 15 Lab lD: 52311097-003 Collection Date: 1115120231'l:18:00AM Client Sample lD: H8 Matrix: Solid \nalyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 7.4 05 pCi/m2-sec 1110812023 09:03 WN EPA115 Lab lD: 52311097-004 Collection Date: 1 1151202311:19:00 AM Client Sample lD: H9 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1110812023 09:14 WN EPA'1 1513.1 0.5 Lab lD: 52311097-005 Collection Date: 111512023 '11:20:00AM Client Sample lD: H10 Matrix: Solid Analyses Result RL Qual Units Date Anallped/lnit Method Radon Flux Radon-222 pCi/m2-sec 1110812023 09:25 WN EPA 115'1 .0 0.5 Lab lD: 52311097-006 Collection Date: '11151202311:17:00AM Client Sample lD: 11 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 1110812023 09:39 WN EPA 115 These results apply only to the samples tested. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2r:2gRadon Flux Hl"u.ur"rBn?fleeJ"n' U December 28,2023 - Page 61 of 126 16.2 0.5 FT,i {,Y,,ln*r1",*f-, Pace Analytical 1673 Terra Avenue Sheridan, WY 8280'1 ph: (307) 672-8945 Sample Analysis Report CLIENT: AnfieldResources 3346 W. Guadalupe Rd. Apache Junction, M 85210 Project: SHOOTARING CMP-UT AQ lD 14169 4TH QTR COC: Date Reported: 1 1 1912023 Report lD: 5231 1097001 Work Order: 52311097 Date Received: 11 17 12023 Sampler: RG/SG Lab lD: Client Sample lD: 12 s231 I 097-007 Collection Date: 1 11512023 1 1:18:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1110812023 09:51 WN EPA'1 159.6 0.5 LablD: 52311097-008 Collection Date: '11151202311:'19:00AM Client Sample lD: 13 Matrix: Solid Analyses Result RL Qual Units Date Analy'zed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1110812023 '10:02 WN EPA 11517.2 0.5 Lab lD: 52311097-009 Collection Date: 1 11512023 11:21:00 AM Client Sample lD: 14 Matrix: Solid \nalyses Result RL Qual Units Date Anaiped/lnit Method Radon Flux Radon-222 69 0.5 pCi/m2-sec 1110812023 10:13 WN EPA 115 Lab lD: 52311097-010 Collection Date: 1115120231'l:23:00AM Client Sample iD: 15 Matrix: Solid Anal)rses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 1110812023 10:24 WN EPA 11579 0.5 Lab lD: 52311097-011 Collection Date: 11151202311:25:00AM Client Sample lD: 16 Matrix: Solid Anal)rses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1110812023 10:46 WN EPA 1154.9 0.5 Lab lD: 52311097-012 Collection Date: '1 11512023 11:25:00 AM Client Sample lD: |6-DUP Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 1110812023 '10:57 WN EPA 11554 0.5 These results apply only to the samples tested. Paoe 2 of 5 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux MeasurementEeport December 28,2023 - Page 62 of 126 .?lD/ *tf{.,1ru-',tlt&Pace Analytical 1673 Terra Avenue Sheridan, WY 8280'1 Sample Analysis Report CLIENT: AnfieldResources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UT AQ lD 14169 4TH QTR coc: ph: (307) 672-8945 Date Reported: 11 1912023 Report lD: S231 1097001 Work Order: S2311097 Date Received: I 1 17 12Q23 Sampler: RG/SG Lab lD: Client Sample lD: 17 s231 1 097-01 3 Collection Date: 111512023 11:22:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyed/lnit Method Radon FIux Radon-222 pCi/m2-sec 1110812023 11:08 WN EPA 1156.1 0.5 Lab !D: 5231 1097-014 Collection Date: 1 11512023 '1 1:21:00 AM Client Sample lD: 18 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 6.7 0.5 pCi/m2-sec 1110812023 11:19 WN EPA'1 15 Lab lD: 5231'1097-015 Collection Date: '11151202311:20:00AM Client Sample lD: 19 Matrix: Solid \nalyses Result RL Qual Units Date Anallped/lnit Method Radon Flux Radon-222 19.4 0.5 pCi/m2-sec 1110812023 11:30 WN EPA 115 Lab !D: 52311097-016 Collection Date: 11151202311:20:00AM Client Sample !D: 110 Matrix: Solid Analyses Result RL Qual Units Date Anallzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1110812023 11:42 WN EPA 11530.8 0 5 Lab lD: 52311097-0'17 Collection Date: 111512023 11:14:00 AM Client Sample lD: J1 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1110812023 11:53 WN EPA 11524.1 0.5 Lab lD: 5231 1097-018 Collection Date: I 11512023 '1 1:15:00 AM Client Sample lD: J2 Matrix: Solid Anal)rses Result RL Qual Units Date Anallzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1110812023 12:04 WN EPA 11597 0.5 These results apply only to the samples tested. Paoe 3 of 5 Anfield Resources Holdins Corp. - Shootarli#%l%Hl-r?[?11,3i#23 Radon Flux MeasurementHeport ,flli *riY Pace Analytical ',Jf ;rr1 s 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: AnfieldResources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UT AQ lD 14169 4TH QTR COC: Date Reported: 1 1 1912023 Report lD: 5231 1097001 Work Order: S2311097 Date Received: 11 17 12023 Sampler: RG/SG Lab lD: Client Sample lD: J3 s231 1097-019 Collection Date: 1 11512023 1 1:16:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 pCi/m2-sec 1110812023 12:15 WN EPA 1159.0 0.5 Lab lD: 5231 1097-020 Collection Date: 1 11512023 't 1:18:00 AM Client Sample lD: J4 Matrix: Solid Analyses Result RL Qual Units Date Analyed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1110812023 12:27 WN EPA 1153.7 0.5 Lab lD: 52311097-021 Collection Date: 1115t202311:19:00AM Client Sample lD: J5 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 1.7 0.5 pCi/m2-sec 1110812023'12:48 WN EPA '1 15 LablD: 52311097-022 Collection Date: '11151202311:26:00AM Client Sample lD: J6 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 3.3 0.5 pCi/m2-sec 1110812023 12:59 WN EPA 115 Lab ID: 52311097-023 Collection Date: 111512023 11:22:00 AM Client Sample lD: J7 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 3.5 0.5 pCi/m2-sec 1110812023 13:10 WN EPA 115 Lab lD: 52311097-024 Collection Date: 1 11512023 11:25:00 AM Client Sample lD: J8 Matrix: Solid Analyses Result RL Qual Units Date Analped/lnit Method Radon Flux Radon-222 7.9 0.5 pCi/m2-sec 1110812023 13:21 WN EPA 115 These results apply only to the samples tested. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2ozgRadon Flux rtr"u.rr"rFnlfl?$not S December 28, 2023 - Page 64 of 1 26 ]l *1,,l.r,*,l$n Pace Analytical 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 Sample Analysis Report CLIENT: Anfield Resources 3346 W. Guadalupe Rd. Apache Junction, AZ 85210 Project: SHOOTARING CMP-UT AQ lD 14169 4TH QTR COC: Date Reported: 11 1912023 Report lD: S2311097001 Work Order: S2311097 Date Received: 11 17 12023 Sampler: RG/SG Lab lD: Client Sample lD: Jg s231 1 097-025 Collection Date: 1 11512023 1 1:23:00 AM Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1110812023 13:33 WN EPA 11523 6 0.5 Lab lD: 5231 1097-026 Collection Date: 1 11512023 1 1:20:00 AM Client Sample lD: J10 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 27 3 0.5 pCi/m2-sec 1110812023 13:44 WN EPA 1'15 Lab lD: 52311097-027 Collection Date: Client Sample lD: BLANK B-1 Matrix: Solid \nalyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 ND 0.5 pCi/m2-sec 1110812023 '13:56 WN EPA 115 Lab lD: 52311097-028 Collection Date: Glient Sample lD: BLANK B-2 Matrix: Solid Analyses Result RL Qual Units Date Analyzed/lnit Method Radon Flux Radon-222 pCi/m2-sec 1110812023 14:07 WN EPA 115ND 0.5 Lab lD: 52311097-029 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 pCiim2-sec 1110812023 14:18 WN EPA 115 Lab ID: 5231 1097-030 Collection Date: Client Sample lD: BLANK B-4 Matrix: Solid Analyses Result RL Qual Units Date Analyed/lnit Method Radon Flux Radon-222 ND 0.5 pCi/m2-sec 1110812023"14:29 WN EPA 115 These results apply only to the samples tested. Anfield Besources Holding Corp. - Shootaring Canyon Mill - Site 14169 - z[2sRadon Flux U"rrrr"r3n?$?p?n'U December 28, 2023 - Page 65 of 1 26 ilu*,r*,Pace Analytical CLIENT: Anfield Resources Work Order: S2311097 Project: SHOOTARING CMP-UT AQ lD 14169 4TH QTR 1673 Terra Avenue Sheridan, WY 82801 ph: (307) 672-8945 ANALYTICAL QC SUMMARY REPORT Sample Type MBLK Date: 111912023 Report lD: S2311097001 Units: pCi/m2-secRadon Flux MB START (11108/23 08:18) RunNo:215832 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 15ND MB END (1'1i08l23 15:08) RunNo: 2'15832 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 ND Sample Type LCS1 Units: pCi/m2-sec 15 Radon Flux STD LOW START (11108/23 06:59) RunNo:215832 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 104 90 - 110 STD LOW END (11/08/23 15:22) RunNo:215832 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 395 Sample Type LCS2 387 102 Units: pCi/m2-sec tE 90 - 110 Radon Flux STD HIGH START (11108/2308:07) RunNo:215832 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 99.6 90 - 110 STD HIGH END (11/08/23 14:51) RunNo: 215832 Analyte Result RL Spike Ref Samp %REC % Rec Limits Qual Radon-222 3940 Sample Type DUP 3870 102 Units: pCi/m2-sec 15 90 - 110 Radon Flux 5231'1097-001ADUP (11/08/23 08:41) RunNo:215832 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 8.6 4.99 10 52311097-010ADUP (11108/23 10:35) RunNo:215832 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 0.57.8 5231 1097-020ADUP (11108123 12:37) RunNo: 2'15832 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 3.7 1.32 100.5 5231'1097-030ADUP (1 1/08/23 1a:39) RunNo: 215832 Analyte Result RL Ref Samp %RPD %REC % RPD Limits Qual Radon-222 10ND0.5ND Anlield Resources Holdins Corp. - Shootarlig"?H%ll'li.Jl""Ll,3i#23 Radon Flux Measurement Report Page 1 of 1 ;sEB) Ia- q)o(! .soacr )oo)oEq(r ) g) (, )Qu,oor5oa_ (I ) I)q(EU,BoEaooobooO NJ T\ co \ NI ON L EN E N =P ES E \S S iS i ^. ; E b N ;= F ' .- : -6 \ o- Oc { L. \ L (D l \t J €? i N- :f . = ( E zE . 9 S FH r" u r. u o E a SU \ 8B = \l -C n O c EE I q oE i$ f = (D ' =6 l pd E€ E i H: i t t * * N - o E eB H3 t ; E -c Aq cl r- -d {- , .^ ." g YI = 8E E E E E E O O q O ,r , E ; R 8 8 T -o o 2 X E t IE E: E E P# sf E$ E B "$ bE e 6 ' 6 tr o o c Gc \ o o- o o o. E ,s O= LL tu (- rt r $ {- ,3lf - oo rk , $ rF Ja ff i Siatc of t tah SPlrNCliR.l. CoX (i ove rnor DEIDRF] HI..NI)F,I{SON I-ieulendnr Oovernor Department of Health Human Services 'I RACY S. GIiIIBIR Lxecutive Direcnt NAI'E CllIjCKI:TTS Depu4'Dtreoor DR. MtCI IEl.l.l: I lol:i\4ANN Exeul tve .\ledicul Dtrector I)AVID I-ITVAK L)apuq'Directur NA l tr WINI'l:RS Depuq'l)rcctor . . I'ffi EPA Number. WY00005 Attachment to Certificate Number: WY000052023-12 Page I or7 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 GelTreated (HEM-SGT) Method EPA 200.2 Acid Digestion of Aqueous samples and Extracts for Total Metals Method EPA 200.7 Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromrum Cobalt Copper lron Lead Lithium Magnesium Manganese Molybdenum Nickel Phosphorus, total Potassium Scandium Selenium Silver Sodium Strontium 195 North 1950 West, Salt Lake Cit1,. Lltah 84l l6 telephone (801 ) 965-2400 l tax (801 ) 538-41 5 1 l email: labimprovement@utah.gov weh: hftns:l/rrnhl.rrfah"por,/cefl ificat ions 02t25t22 Year:2014 42t25t22 Revision: f Year: 1999 a2la1t15 02t01115 03/01/18 Revision: 4.4 Year: 1994 02t01t15 02t01t15 02t01115 o2to1t15 02t01t15 02t01t15 02101115 02101/1s a2la1l15 02t01t15 42t01t15 02t01t15 42101115 42t01t15 02101115 02t01t15 02t01t15 02101115 02t01t15 a2la1n5 03/1 3/23 02t01115 02101l't5 02t01t15 02141t15 Method Code: 30032930 03t31t24 UT Method Code:60002768 03t31t24 UT Method Code: 10127807 a3t31t24 UT Method Code: 10261606 03t31t24 UT Method Code: 10263806 a3131t24 UT Method Code: 10013806 43t31t24 UT 03t31124 UT 03t31t24 UT 03131t24 UT 03131t24 UT 03131t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 43t31t24 UT 43t31t24 UT 43t31t24 UT 03t31t24 UT 03t31t24 UT a3t31t24 UT 43t31t24 UT 03t31t24 UT 43t31t24 UT 03t31t24 UT 03131t24 UT 03t31t24 UT 03131t24 UT 03t31t24 UT EPA Numben llN00(N5 Attachment to Certificate Number: V1IY000052023-12 Pace Analytical Services, LLC - Sheridan, WY Start Date Expitas Page 2 of 7 AB Program/Matrix: CWA (Non Pohble Water) Sulfur Thallium 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 Manganese Molybdenum Nickel Selenium Silver Strontium Thallium Tin Uranium Vanadium Zinc Method EPA 200.8 Titanium Method EPA245.1 Mercury Method EPA 300.0 Nihate plus Nitrite as N Bromide Chloride Fluoride Nitrate as N Nitrite as N Orthophosphate as P Sulfate hod EPA 335.4 02125122 02101t15 02n5t22 laou15 laun5 0ao1t15 uaun5 Revision:5 Year: 1998 03/01/18 03t13123 Revision: 5.4 Year: 199f oaa1t15 0?,01115 oaun5 o2to1t15 oaun5 o3t13t23 ou01t15 02101t15 gaun5 0u01t15 02t01t15 0210'U15 02to1t't5 02t01t15 02101t15 02t01t15 02t01t15 02t01t15 02t01t15 o2to1t15 021011'15 oaun5 Revision: 5.5 Year: 1998 0?,01115 Revlsion:3 Year: 1994 ozo1t15 Revislon: 2.1 Year: 1993 02t01115 02,01t15 0uo1t15 0uo1115 oaou15 ouo1t15 0uo1t15 oaoil15 Revision: I Year: {993 03t31t24 UT 03t31n4 UT 03t3'U24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t3'U24 UT Method Gode: 10014{103 0u31t24 UT Method Code: 10014401 03t31n4 UT IUlethod Gode: t 0014605 03t31t24 UT 03t31t24 UT 03t31t24 UT 03131t24 UT 03R1t24 UT 03131t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31124 UT 03t31t24 UT Bt31n4 UT $t31n4 UT 03t31n4 UT $i31N4 UT 03t31t24 UT 03t31t24 UT o3t31n4 UT 03t31124 UT 03t31t24 UT Method Code: 1001t409 03t31t24 UT Method Code:10036609 03t31t24 UT Method Code: 10053200 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT o3t3'U24 UT$lvn4 ur 03t31t24 UT Method Code: 10061402 195 North 1950 West, Salt Lake City, Utah 841l6 telephone (801) 965-2400 | fax (801 ) 538-4151 | email: labimprovement@utah.gov weh: httns:/hrnh l. utah. sov/certifi cation s EPA Number: W00(N5 Attachment to Certificate Number: V1IY000052023-12 Page3or7 Pace Analytical Services, LLC - Sheridan, \A/Y Start Date Expires AB Program/Matrix: CWA (Non Potable Water) Totalcyanide hod EPA 350.1 Ammonia as N Method EPA 351.2 Kjeldahl Nitrogen (Total Kjeldahl Nibogen-TKN) Method EPA 353.2 Nitrate plus Nitrite as N Nihate as N Nitrite as N Method EPA6020 Uranium Totial(mass) Method GA Tech Ra-2261228 Radium-226 Radium-228 Method HACH 8131 Sulfide Method OIA 1677-09 Available Cyanide Method SM 18/l9thED 7500-Ra B Totalradium Method SM 2310 9-2011 Acidity, as CaCO3 Method SM2320 8-1997 Alkalinity as CaCO3 hod SM 23208.-2011 Alkalinity as CaCO3 Method StUl2340 8-1997 Totalhardness as CaCO3 Method SM 2340 8-2011 Totalhardness as CaCO3 Method SM 2510 8.2011 Conductivity Method SM 2540 C-1997 Residue-fi lterable (TDS) Method SM 2540 C-2015 Residue-fi lterable (TDS) Method SM 2540 0-1997 Residue-nonfi lterable (TSS) Method SM 2540 D-2015 Residue-nonfi lterable (TSS) Method SM 4500-F- C-2011 Fluoride Merhod sM 4500-H+ 8.-2011 pH Method SM 5310 9.2014 Totalorganic carbon hod SM 7ll0 B (GPC) 02t01t15 03t31t24 UT Revision: 2 Year:1993 Method Code: 10063502 02t01t15 03t31124 UT Revislon: 2 Yearz 1993 Method Code: 10065404 0aun5 03t31t24 uT Revision: 2 Year:1993 Method Code: ,0067604 02t01t15 03t31t24 UT 02101t15 03t31124 UT 02t01115 03lyn4 uT Year: (9/94) Method Code:10156000 03t13t23 03t31t24 UT Revision: 1.2 Yearz 2004 Method Code:90016005 o2n5t22 03t31t24 UT 0425t22 03t3'.U24 UT Method Gode:60003783 03t13t23 03t31t24 UT Year: 2010 Method Code: 60031450 05t24t22 03t31t24 UT Method Code:20033801 02t01t15 03t31124 UT Year: 2011 Method Code: 20044515 05t24t22 03t31t24 UT Revision:20th ED Year: 1997 Method Gode:20045209 0u01fi5 03t31D4 UT Year: 2011 Method Code: 20045618 0u01t22 03t31t24 UT Year: 1997 Method Code: 200t16600 ou01t22 03t31t24 UT Yeatz 2011 Method Code: 200'16611 0aun5 03t31t24 uT Yeat: 2011 Method Code: 24048617 0?,0il15 03t31t24 UT Revision:20th ED Year: 1997 Method Gode:20050004 02t01t't5 03t31t24 uT Year: 2015 liethod Gode: 20050435 02101t22 03/31n4 UT Revision: 20th ED Year: 1997 Method Code:20050800 o2to1t15 03t31t24 UT Year: 2015 Method Gode: 20051223 02t01t22 03131t24 UT Year: 2011 Method Gode: 20102414 02t01t15 03t31t24 UT Year: 20ll Method Code: 2O1O522O o2lo1t15 03131t24 UT Yeat: 2014 Method Code: 20137831 o5t24t22 03t31n4 UT Revision: 20th ED Method Code: 20156609 195 North 1950 West, Salt Lake City, Utah 841l6 telephone (801 ) 965-2400 I fax (801) 538-415 I I email: labimprovement@utah.gov weh: httns://unh I .rilah -sov/certifi cation s EPA Number: UNOilNi Attachment to Certificate Number: WY000052023-12 Page4or7 Pace Analytical Services, LLC - Sheridan, \A/Y Start Date Expires AB ProgramlMatrix: CWA (Non Pohbte Water) Gross-alpha 0Zt01t1S 0g\1n4 UTGross-beta 02101t15 Ogtg1t24 UT Method SM 7500-Ra B (GPC)-2001 Revision:22nd ED Year: 200{ Method Code: 201704{6Totalradium ozn122 oglg1t24 UT I95 North 1950 Wes! Salt Lake City, Utah 841 l6 telephone (801) 965-2400 | fax (801 ) 538-415 I I email: labimprovement@utah.gov weh: hftns://unh l.ufah-sov/cerf ifi cations EPA Numbec )th/00(N5 Attachment to Certificate Number: V1IY000052023-12 Pace Analytical Services, LLC - Sheridan, \A/Y start Date Expires Pagc 5 of7 Program/Matrix: RCflA (Non Pobble Water) hod EPA053917 p. 33 EMSL LV Thorium-230 Method EPAl3ll Toxicity Characteristic Leaching Procedure (TCLP) Method EP A 1312 Synthetlc Precipitation Leach ing Procedure Synthetic Precipitation Leaching Procedu re (SPLP) Method EPA3020A Acid Digestion of Aqueous samples and Extracts for Total Metals Method EPA 6010 Phosphorus, total Method EPA6010C Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Chromium Cobalt Copper lron Lead Lithium Manganese Molybdenum Nickel Selenium Silica as SiO2 Silver Strontium Sulfur Thallium Thorium Tin Titanium Vanadium Zinc ttiethod EPA 6020 Aluminum Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Method Code: 10251806 03t13t23 03t31t24 UT Revision: 0 Year: 1992 Method Gode: 10118806 02t25t22 03131n4 UT Revision:0 Year: 1994 Method Code: 10119003 02n5t22 03t31t24 UT Revision: I Year:1992 Method Code: 1013/,404 03/01/18 0U31t24 UT Year: (9/86) Method Code: 10155201 03n3n3 03t31t24 UT Year: (11/00) Method Code: 10155803 0aun5 03t31t24 uT 0aun5 03t31t24 uT 02t01t15 03/31n4 UT 02t01t15 03t31t24 UT 02to1t15 03t31t24 UT 02t01t15 03t31t24 UT 02to1t't5 03t31124 uT 02t011't5 03t31t24 uT 02t01t15 03/31n4 UT 02t01t15 03t31t24 UT 02101t15 03t31t24 UT aaut1s 03t31t24 uT aaunS 03t31t24 uT aauns 03t3'v24 uT ou01t15 03t31t24 UT 0u01t15 03t31t24 UT oauns 03t31t24 uT 03/01/18 03t31t24 UT 0aun5 03t31t24 uT 0210'U15 03i31n4 UT 02t25t22 03t31t24 UT o2t01t't5 03t31t24 uT 02t25t22 03t31124 UT 02101t15 03t31t24 UT 02101t15 03t31t24 UT 02101t15 03t31n4 UT 0aa1n5 03t31t24 uT Revision:0 Year: 1994 Method Code: 1015620'f 02t01t15 03/31n4 UT o2to1t't5 03t31t24 uT 0aun5 Bt31t24 uT 0aut15 03t31t24 uT 02101t15 03t31t24 UT 02t01t15 03t31t24 UT 02t01t't5 03t31t24 uT 02t01t15 03t31t24 UT 195 North 1950 West, Salt Lake City, Utah 841 l6 telephone (801 ) 965-2400 | fax (801 ) 5384151 | email: labimprovement@utah.gov weh : httns : //rrnh l. rrtah.sov/certifi cations EPA Number: WYONNi Attachment to Certificate Number: WY000052023-12 Pace Analytical Services, LLC - Sheridan, WY Start Date Exptrcs Pagc 6 of7 Progmm/Matrix: RC&{l (Non Potable llfater) Lead Manganese Molybdenum Nickel Selenium Silver Strontium Thallium Tin Titanium Vanadium Zinc Method EPA 6020A Aluminum Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Manganese Molybdenum Nickel Selenium Silver Strontium Thallium Tin Titanium Vanadium Zinc Method EPA7470A Mercury Method EPN6OOI2-78/0&I Sec 3.2.2 Paste pH pH Method SM 7500-Ra B (cPC) Radium-226 02t01115 02t01t15 02101t15 02t01t15 02t01t15 oaun5 02101t15 ou01t15 a2tail15 oao1n5 oaun5 aaail15 Year: (1/98) oauD2 0ao1n2 oao1n2 02t01t22 o2to1n2 02t01t22 02t01t22 02t01t22 02t01t15 02t01t22 02t01t22 a2to1t22 02n1n2 o2to1t22 02n1n2 02t01D2 02t01t22 02t01t22 02101122 02t01t22 02101D2 Revlslon: I Year: 1994 02t01122 Year:1978 0?i25122 Revision:21st ED az25t22 03t31n4 UT 03,31n4 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT $/31N4 UT 03131124 UT 03131t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT o3t31t24 UT Method Code: 10156408 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t3'U24 UT 03t31t24 UT 03t3'il24 UT 03t31t24 UT 0u31n4 uT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03t31t24 UT 03131t24 UT 03t31t24 UT 03t31n4 UT w31n4 UT 03t31t24 UT Method Code: {0165807 03t31t24 UT Method Code: 10289222 03t3'U24 UT Method Code:201704/l,5 03t31124 UT 195 North 1950 West, Salt Lake City, Utah 841 l6 telephone (801) 965-2400 | fax (801) 5384151 lemail: labimprovement@utah.gov weh: hffns://rrnhl.rrtah.sov/certi fi cations EPA Number: WY0N)05 Attachment to Certificate Number: V1rY000052023-12 PageTorT Pace Analytical Services, LLC - Sheridan, WY Start Dare Expires AB Program/Matrk RCRA (Solid & Hazardous Material) hod ASTM D5744-13 Year:2013 Method Code:3003228, Preparation/Extraction 02125t22 03,31n4 UT Method ASTM E2242-13 Year:2013 Method Code:30045524 Meteoric water mobility procedure 02125122 0313'.124 UT Method EPA1311 Revision:0 Year:1992 Method Code:10118806 Toxicity Characteristic Leaching Procedure (TCLP) 02101115 03131124 UT Method EPA 1312 Synthetic Precipitation Leaching Revision:0 Year: 1994 tlethod Code: 10119003 Procedure Synthetic Precipitation Leaching Procedure (SPLP) 02125122 03131124 UT Method EPA 30508 Revision: 2 Year: 1996 Method Code: 1013560{ Acid Digestion of Solids 03/01/18 03131124 UT Method EPA60i0 Year: (9/86) Method Code:10155201 Antimony 03113123 0313'1124 UT Beryllium 03113123 03131124 UTNickel 03113123 0313'1124 UT Method EPA6010C Year: (11/00) Method Code:10{55803 Arsenic 02101115 03131124 UTBarium 021011'15 03131124 UT Cadmium 02101115 03131124 UT Chromium IAU\S 03131124 UTLead 02/01115 03131D4 UT Selenium 02101115 03131124 UT Silver 0AUn5 03131124 UT Sultur 02125122 03131124 UT Thorium 02125122 03131124 UT l$ethod EPA7470 Year: (9/85) Method Code:10165603 Mercury 02101115 03131124 UT Method EPA7471B Year: (l/98) Method Code: 10166402 Mercury 0210'1122 03131124 UT Method EPA 901.1 Method Code: 10308608 Gamma Emitters 02125122 03131124 UT Method EPA 9081 Revision: 0 Year: 1986 Method Code: 10203404 Cation exchange capacity 02125122 03131124 UT Method ASTM D42263(07) Year:1963 Method Code:30030854 Grain size (sieving) 02125D2 03131124 UT Method SM 7500-Ra B (GPC) Revieion:2lst ED Method Code: 201704o5 Radium-226 02125122 03131D4 UT The Utah Envlronmental Laboratory Cerdftcatlon Program (ELCP) encourages clients and data userc to verlfy the most current certlffcaUon letter for the authorized method. The analytes by method whlch a laboratory ls authorlzed to perform at any given time will be thoso lndlcated ln the mo3t rocent certificate letter. Tho most r€cent cottmcatlon lgtter sup€rtedos all prcvaous certification or authorlzatlon letters, lt ls the certlfied laborstorys responElblllty to mvlew thls letter for dlscrepancles. The certlfred laboratory must document any discrepancies in this lstter and send notics to this burcau within 15 days of roceapt Thls cerdffcate letter wlll be tecalled ln the eveirt your laboratory'e certlficatlon ls tevoked. 195 North 1950 West, Salt Lake City, Utah 841 l6 telephone (801) 965-2400 | fax (801 ) 538-4151 | email: labimprovement@utah.gov weh: httos:/hrnhl.utah.sov/certifi cations APPENDIX C STAN DARD OPERATING PROCEDU RES Balance Operation-Laboratory SOP Radon Flux Measurement by Gamma Gounting-Laboratory SOP Radon FIux Measurement, Field Activities-Site SOP to include EPA Method 11S-Monitoring For Radon-222 Emissions Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 75 ol 126 ENV-SOP-SHRT-01 55, Rev 00 ceAna{ytical. ENVIRONM ENTAL SCIENCES Document Information DocumentNumber: ENV-SOP-SHRT-0155 Revision: 00 Document Title: Support Equipment Procedure Denartment[s):r = Wet Chemistry, Rad Chem, Metals, Mining, Quality Date Information Effective Date: 16 Sep 2020 Notes Document Notes: All Dates and Times are listed in: CentralTime Zone 1 of 19 Anlield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 76 of I 26 ENV-SOP-SHRT-0155, Rev 00 Signature Manifest Document Number: ENV-SOP-SHRT-0't 55 Title: Support Equipment Procedure Revision:00 All dates and times are in Central Time Zone ENV.SOP€HRT.O155 QM Approval lx*ersilotre liite ' ""='--Tp#''-- " luea"ir,striiJr;{in'-- -' Michelle LaGory (990324) Manager - Quality 16 Sep 2020, 10:05:54 AM Approved Management Approval Michelle LaGory (990324) Manager - Quality 16 Sep 2020, 10:06:22 AM Approved 2of19 ENV-SOP-SHRT-0 1 55, Rev 00 f-)/ ,FSceMatytiat PROCESS STANDARD OPERATING PROCEDURE TITLE: !SSUER: Support Equipment Pace ENV - Sheridan - SHRT 1.0 2.0 3.0 COPYRIGHT O 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. SunameRy 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. Dennrrorus 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. Hellrn 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. Pnoceoune 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 pinted copy of this SOP and all copies of fhls SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new yerslons are released or fhe SOP rs made obsolete. Users of the SOP shou/d veify the copy in possession is the current version of the SOP before use. Anfield Resources Holdins corp. - shoowllg"??}1%!! l-rtJl?,ri,3i#23 Radon Flux Measurement Report 4.0 5.0 6.0 3 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. general area of the equipment. For those pieces of equipment which undergo monitoring, calibration verifications and/or maintenance on a monthly, quarterly or annual (or other frequency) basis, the records may be filed and stored in the Quality department. All records must be organized and available for review by external auditors. Traceability: For equipment requiring calibration and calibration verification, all reference materials must be traceable to NIST reference materials (e.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 reguirements 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 dialtype thermometers). This verification is performed against the N|ST-traceable 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 ambigulty 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. 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 possesslon is the current version of the SOP before use. Anfield Flesources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 79 ol 126 4 of 19 ENV-SOP-SHRT-01 55, Rev 00 Analytical PROCESS STANDARD OPERATING PROCEDURE 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 fhls 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. 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 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 80 of 1 26 5 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. 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 t 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-certified thermometer) to pass criteria. Create a unique label to document the thermometer number, date of calibration, date the next calibration is due, and the initials of the analyst who calibrated the working thermometer and the proper correction factor. Affix this label to the working thermometer. Thermometers calibrated at oven temperatures must only be used to determine temperatures at or near the oven calibration temperature. A thermometer calibrated at oven temperature is not considered calibrated for use at ice point temperatures. 6.2.3.4 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'-> 6'C 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 fhls SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP 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 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 8 1 oI 1 26 6 of 19 ENV-SOP-SHRT-0'1 55, Rev 00 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 external vendor every 5 years at a minimum (unless a customer or regulatory requirement supersedes this with a shorter time period). The certifying vendor must provide the laboratory with a copy of a Certificate of Calibration (or equivalent). All reference materials used by the vendor for the recertification must be traceable to NIST (or comparable National Metrology 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 identifled 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 speciflcations 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 outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete Users of the SOP 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 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 82 of 1 26 7o119 ENV-SOP-SHRT-O1 55, Rev 00 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. Othenvise, 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 all the working weights. The internal calibration function (if available) of the balance may be used as a means of corrective action. Utilize the internal calibration function and diagnostics. 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 service technician should be contacted if the balance cannot be repaired internally. Record any corrective action. lnitial and date all entries in the logbook. Any printed copy of this SOP and all copies of fhls SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete Users of the SOP shou/d verify the copy in possession is the current version of the SOP before use. Anfield Resources Holdins corp. - shoorarHg"?%1%lEl-r.Jlee!1,3i#23 Radon Flux Measurement Report 8 of '19 ENV-SOP-SHRT-01 55, Rev 00 f)/ ,PiceMatytical PROCESS STANDARD OPERATING PROCEDURE TITLE: ISSUER: 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 certificate of traceability (or similarly named document) that links the accuracy of the pipette to an NIST traceable source, the certificate should be retained for reference. 6.6.1.2 Customer specific requirements may dictate that an initial or periodic verification is performed regardless of whether the device is "Class A" or a certificate of traceability is available. 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. !n 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 !2.5o/o, respectively. They must be calibrated upon initial Any pinted copy of this SOP and all copies of this SOP oufsrde of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP shou/d veify the copy in possesslon is the current version of the SOP before use. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Beport December 28, 2023 - Page 84 of 1 26 9 of .19 ENV-SOP-SHRT-0'1 55. Rev 00 PROCESS STANDARD OPERATING PROCEDURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT O 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 speclfic 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. Expel the air bubbles from the pump by short, rapid strokes. Bubbles will be visible through the dispensing tip holder window. The tip should be free of bubbles. However, tiny bubbles may be ignored and should not affect the operation. Place an appropriately sized beaker on a calibrated analytical balance and tare the balance once (as additional aliquots are added below, the spreadsheet will be able to subtract the values to determine the weight). Dispense the desired aliquot of liquid into the beaker and place back on the balance. Record the weight. Collect four additional aliquots until there are five data points recorded. Calculate the average weight and the standard deviation and record. Take the temperature of the liquid in the beaker used during calibration and record the temperature on the worksheet. 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 fhls SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP should verify the copy in possession is the current version of the SOP before use. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28,2023 - Page 85 of 126 10 of '19 ENV-SOP-SHRT-0'l 55, Rev 00 PROCESS STANDARD OPER,ATING PROCEDURETITLE: Support Equipment ISSUER:Pace ENV - Sheridan - SHRT COPYRIGHT O 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 (M.) using the indicated density. Record the value in the appropriate logbook. The precision and accuracy must not exceed t2%. 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, 50o/o of the maximum volume, and the smallest adjustable volume, which should not be less than 10% of the nominal volume. The calibration may be documented in a logbook or spreadsheet. 6.6.3.1 Calibration Procedure: Using a properly calibrated balance, tare the weight of a small tray (or equivalent device). Using the pipette, draw up a portion of room temperature distilled water and dispense it into the tared tray. Record the weight and units in the logbook or spreadsheet. Repeat this procedure four more times using the same tray and retaining each aliquot and record each weight for a total of five weights. Using a calibrated thermometer, take the temperature of the deionized water used for calibration and document it on the spreadsheet. Look up the corresponding temperature correction factor (refer to Attachment lV) and enter it into the documentation. Calculate the average weight dispensed from the pipette assuming'lmL of deionized water = 1.0009. ln the absence of manufacturer specified performance criteria, the accuracy and precision must not exceed: ! 2o/o al the maximum volume; !, 2Yo at half the maximum volume; !2o/o at 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 pinted copy of this SOP and all copies of this SOP oufsrde of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new verslons 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 Holdins corp. - shootariigrH%lg i ,?l?tl13i,#23 Radon Flux Measurement Report 11of 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 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 once all measurements have been made. 6.6.4.2 Setting Volume Press the gray locking button (if available) found on the side of the device near the top and hold down. Set the volume by turning the control button. This should turn freely. 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 pinted copy of this SOP and all copies of this SOP oufsrde of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obso/ete Usersof the SOPshou/dverifythecopyin possession isthecurrentversionof theSOPbeforeuse. Anfield Resources Holdins corp. - shootariigf?}I%lglr.$""11,3i1#23 Radon Flux Measurement Report 12 of 19 ENV-SOP-SHRT-01 55, Rev 00 ,{;"ntatytiat PROCESS STANDARD OPERATING PROCEDURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT O 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 Iiquid 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 RESPONSIBILTTTES 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 fhis 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. Usersof the SOPshou/dverifythecopyin possesslon isthecurrentversionof theSOPbeforeuse. Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 88 of 1 26 13 of 19 ENV-SOP-SHRT-0'l 55, Rev 00 {AMawcat ] PROCESS STANDARD OPERATING PROCEDURE TITLE: Support EquipmentISSUER: 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 Attach ment 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 AI New laboratory procedure, consolidating several lab SOPs for support equipment into one. This document the tollowr S Document Number Title 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 oufsrUe 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 - 2023 Radon Flux Measurement Report December 28,2023 - Page 89 of 126 14 oI 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. Attachment l: Weight Class Tolerances Metric Weight ASTM Class NIST Class NBS Class All tolerances listed in mq 1ko 1.3 2.5 5.0 10 20 50 100 470 100 2.5 500q 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 200s 0.25 0.50 1.0 2.0 4.0 15 20 160 40 0.50 '1000 0.13 0.25 0.50 1.0 2.0 9 10 100 20 0.25 5og 0.060 0.12 0.25 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 10o 0.025 0.050 0.074 0.25 0.50 2.0 2 21 2.0 0.074 5s 0.017 0.034 0.054 0.18 0.36 1.3 2 13 1.5 0.054 3s 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 1g 0.017 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 200ms 0.005 0.010 0.025 0.060 o.12 0.26 1 1.8 0.54 0.025 100m9 0.005 0.010 0.025 0.050 0.10 0.20 1 1.2 0.43 0.025 50mg 0.005 0.010 0.014 0.042 0.085 0.16 0.5 0.88 0.35 0.014 30mg 0.005 0.010 0.014 0.038 0.075 0.14 0.5 0.68 0.29 0.014 20mg 0.005 0.010 0.014 0.035 0.070 0.12 0.5 0.56 0.26 0.014 1Omg 0.005 0.010 0.014 0.030 0.060 0.10 0.5 0.4 0.21 0.014 5mg 0.005 0.010 0.014 0.028 0.055 0.080 0.2 0.17 0.0'14 3mg 0.005 0.010 0.014 0.026 0.052 0.070 0.2 0.14 0.014 2mg 0.005 0.010 0.014 0.025 0.050 0.060 o.2 0.12 0.014 1mg 0.005 0.010 0.014 0.025 0.050 0.050 0.'t 0.10 0.014 Cuss S SUpERSEDED ev ASTM E617-97: sEE NorE rru Srcrroru 11.3 Velur PROVIDED FOR REFERENCE PURPOSES. Any pinted 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 yerslons are released or the SOP rs 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 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 90 of 1 26 15 of 19 ENV-SOP-SHRT-01 55, Rev 00 PROCESS STANDARD OPERATING PROCEDURE TITLE: ISSUER: Support Equipment Pace ENV - Sheridan - SHRT Attachment ll: Weight Class Applications OIML IR consolidation, 1994 ASTM E 617- 1997 NBS Circ. 547, 1954 superseded 1978 N!ST 105-1, 1990 Typical Use Extra-fine accuracy. E1 primary laboratory reference standards E2 0 high precision standards for calibration of weights and special precision analytical balances, accuracy classes I and 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 analrrlinal rrrnrlz hr rilf-in rrrainhfc avlarnal F2 weights used to calibrate moderate precision balances Medium accuracy. 4 P eccrrracv class lll indrrstrial scalps dial M1 5 o M2 6 T F scales, trip balances, platform scales M3 7 also used for accuracy class lll L and llll COPYRIGHT O 2019 Pace Analytical Services, LLC Source: National lnstitute of Standards and Technologies (http :i/ts. nist. gov/Weig htsAnd Measu res/caqmass. cfm ) 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 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 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 91 o, 1 26 16 of 19 ENV-SOP-SHRT-01 55, Rev 00 AnalWN PROCESS STANDARD OPERATING PROCEDURE Support Equipment Pace ENV - Sheridan - SHRT COPYRIGHT @ 2019 Pace Analytical Services, LLC. Attachment lll: Tolerance Limits Belrurce TolenarucE LrMrrs Weight Balance Accuracy (t g) 0.00019 0.00'tg 0.019 o'1g 1 0009 N/A N/A 1og 1og 500g N/A N/A 5g 5g 1 00g 1.0o 1o 1o 1o 5os 0.50o 0.50 0.5o 0.5o 1og 0.1 0g 0.109 o.1g o.1g 1g 0.010s 0.019 0.01s N/A 0.5s 0.005g 0.0059 N/A N/A 0.1q 0.001o 0.001o N/A N/A 0.05q 0.0005o N/A N/A N/A 0.019 0.00019 N/A NiA N/A CIRss A GmsswARE ToLERANcE LIMITS Capncrrv (mL)BuRsr Gmoulreo CvuuoeR Vor-unrternrc Fuasx Vor-uruerRrc Prper 0.5 t0.006 1 t0.01 r0.006 2 r0.01 t0.15 t0.006 3 r0.01 4 r0.01 5 t0.01 t0.02 t0.01 10 t0.02 t0.08 t0.02 t0.02 20 t0.03 25 t0.03 t0.14 r0.03 t0.03 50 t0.05 t0.2 r0.05 r0.05 100 t0.10 t0.35 t0.08 t0.08 200 r0.10 250 t0.65 !0.12 500 !1.1 !0.20 1000 !2.0 t0.30 Any printed copy of this SOP and all copies of fhls SOP outside of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new verslons are released or fhe SOP is made obsolete. 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 14'|.69 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 92 of 1 26 17 of 19 ENV-SOP-SHRT-01 55, Rev 00 frrAnatyticat' PROCESS STANDARD OPERATING PROCEDURETITLE: Support EquipmentISSUER: Pace ENV - Sheridan - SHRT COPYRIGHT @ 2019 Pace Analytical Services, LLC. Attachment !V: Water Density Correction Factors Temp,oc Density Correction Factor F Temp, oc Density Gorrection Factor F 0.00000 1.00002 '1.00004 1.00006 1.00008 I .00010 1.00012 1.00014 1 .00016 I .00019 1.00021 1.00023 1.00025 1.00027 1.00030 1.00032 1.00034 1.00036 1.00039 'r.00041 1.00043 '1.00045 1.00048 1.00050 '1.00052 1.00054 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 0.99763 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 o.gg727 0.99725 0.99722 0.99720 0.99717 0.99715 0.99712 0.99710 0.99707 0.99704 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 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 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 r.o0ogd 1.00098 1 .00100 1 .00103 1 .00105 1 .O01oB 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. Uncontrolled 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 Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December28,2023 -Page93of126 18 of 19 ENV-SOP-SHRT-01 55, Rev 00 f-)/ ,PiceWat&cat TITLE: Support EquipmentISSUER: Pace ENV - Sheridan - SHRT COPYRIGHT @ 2019 Pace Analytical Services, LLC. Attachment V: Adiustable Pipette Troubleshooting Guide ERRon Ceusr Soluror.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 lunction 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. Otheruvise, Disassemble pipette. Replace ejector seal in the nose cone. For 10-1 00p1 and 50-200p1 Replace the reducing tube in the nose cone Filling tube in the nose cone is blocked. Any printed copy of this SOP and all copies of this SOP oufsrde of Pace are uncontrolled copies. Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete. Users of the SOP 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 - 2023 Radon Flux Measurement Report December 28,2023 - Page 94 ot 126 1 9 of 'l 9 ENV-SOP-SHRT-0038, Rev 00 6ceAnatyticat. ENVINONM 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: Central Time Zone 1of 9 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14165 - 2023 Radon Flux Measurement Reporl December 28,2023 - Page 95 of 126 ENV-SOP-SHRT-0038, Rev 00 lnter-Mountain Labs January 29,2018 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 Phone: (307) 672-8945 Quality Manager: Michelle LaGory Tefephone: (307)672-8945 Address: 1673 Terra Avenue Sheridan, WY 82801 Plan Coverage: Standard Operating Procedures for Analysis of Radon Flux Lab Representative: Lab Supervisor: R-RadonFlux-1.1 Page 1 of 8 Anfield Resources Holdins Corp. - Shoota1ig"?H%lg l ,.Jl?Lf 3i#23 Radon Flux Measurement Report 2 of 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 the 24 hours, precipitation must not exceed 0.01 inches or the test may be void. After 24 hours, the carbon from the sampling device is removed from the sampling surface and placed in a sealed can. The sealed can is transferred to the laboratory. The laboratory will measure the activity o'f 8i214 with a gamma spectrometer. The radon decay is calculated and a value of radon emanation using the B,i214 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. - shootarligtH%lglr.Jl""L1,3i#23 Radon Flux Measurement Report 3 of g 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 at40o/o 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. 1l.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 consistof 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 Anfield Resources Holding Corp. - Shootalig$U%lEl-raJl""rri3i#23 Radon Flux Measurement Report 4 of 9 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- 10% of assigned value. 12.4A sample will be counted twice to represent a duplicate measurement. The duplicate measurements should have a Relative Percent Difference o'f 10o/o. 13.0 CalibrationandStandardization. l3.1Compton (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 manualsetting 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 110 t 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. 14.24fter 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 Galculations. l5.lCalculation 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 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 99 of 1 26 5of9 ENV-SOP-SHRT-0038, Rev 00 lnter-Mountain Labs January 29,2018 Where: J = radon flux in pCi/m2-s C = net area counts for B,i214 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 = sompling/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: t- P t At, Where: J = radon flux in pCi/mz-s P = Decay corrected value in pCi/Can A = area of collection in m2 tr = sornpling/exposure time, s o- H I _ t4 o.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 lts t, -KE Where: H = Measured value in pCi/Can ts = counting time E = efflciency 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 Holdins Corp. - Shootarins :SBI!B/! I i:i,S 13J."? - 2023 Radon Flux Measurement Report 6 of 9 clt- xee(r-; ^ ")(, ) 6,-',) -"' 2 r',-',r) ENV-SOP-SHRT-0038, Rev 00 lnter-Mountain Labs 16.0 Precision and Accuracy. 1 6.1 Relative percent difference, RPD January 29,2018 I RpD= l(A-B) l(A + B)lz Where: x 100 A = Net activity of the first measurement B = Net activity of the second measurement 16.2 Replicate error ratio, RER IA-BI 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 Criteria. 18.1MB 18.1.1 The MB results should be below the RL or minimum detectable amount (MDA). 18.2 LCS 18.2.1 The criteria can be developed with control charts using 3 sigma, or have a recovery of t20 percent of the true value. 18.3DUP 18.3.1 The relative percent difference (RPD)should be < 20 percent. R-RadonFlux-1.1 Page 6 of 8 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 1 01 of 1 26 RER = -:=:l 7 of 9 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 Gontingencies 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. 19.21t 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 Holding Corp. - Shootarrng Can1l;3#'i ;il,S if,]:? - 2O23 Radon Flux Measurement Report g of 9 ENV-SOP-SHRT-0038, Rev 00 lnter-Mountain Labs January 29,2018 ATTACHMENT #1 STANDARD OPERATING PROCEDURE METHOD TRAINING RECORD Document IIle; Standard Operating Procedures for Analysis of Radon Flux Document Control Number: R-RadonFlux-1 . 1 Location: lnter-MountainLaboratories,lnc. I have read the preceding document and understand all secfions. I have been trained in the performance of the methods and any recent revisions to this procedure. ANALYST SIGNATURE DATE TRAINER R-RadonFlux-1.1 Page 8 of 8 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28,2023 - Page 103 of 126 9 of 9 Arurrelo Resounces Holorruc CoRp. MorurroRrNc Rnoox-222 Erarssroxs, aka Rnooru Flux MrnsuRruerurs UsrNc Lnnoe AREA AcrvArED CHenconl CnnrsruRs (LMCCS) SrnruonRo OpeRerrr.rc PRocEouRr EP-10 Snoorenrruc Mtl Srre M o ru ro nr N G RADo N-222 E rvr rssro r.rs aka RaooN FLUX MeasuneMENT Usrr.rc Lance Anen AcrvnreD CHARcoAL CANTSTERS (LAACCS) Smruonno Openarrxc PnoceouRe EP-10 Prepared by R and D Enterprises, lnc. P.O. Box 3321 Gasper, 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 I Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site '14169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 104 oI 126 Arurrelo RESouRcEs Holorruo Conp. MoNttoruruc RADoN-222 Etr,trssror.rs, aka RqooN FLux MensuRrueNrs Usruc LnRoE ARen Aclvlreo CnnRcoal CnursrERs (LAACCS) STRNoRRo OpERerIruo PRoCEDURE EP-10 SHootnnrNc Mrrr Srre REVISION HISTORY Revision No.2 1112012021 2 Anlield Besources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28,2023 - Page 105 of 126 Date Version Descriotion Author Januarv 1.2017 0 lnitialDraft Rooer A. Garlino/S.A. Garlino February 28.2021 1 Name Rev S.A. Garlino November 20.2021 2 Forms & EPA Method115 Added S.A. Garlino Ar.rrtplo RESoURCES Holorr.rc Conp. MoNrroRrNG RnooN-222 En,trssroNs, aka Rnoon Fr-ux MrnsuReuerurs UsrNe Lence Anen Acrvnreo CHnRcoel CnrursreRs (LAACCS) SIRNoano OpeRlttNe PnocrouRe SnooraRrruc Mrr-r- Srrr 1 2 3 4 5 6 7 8 9 10 11 12 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 3 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 106 of 126 AnrrElo Resounces Holorue CoRp. MorutroRrxo Rlool.r-222 Eursslotts, aka ReooN Ft-ux MensunelreHrs UsrNG LARGE AReR AclvnreD CHARCoAL CarutsreRs (LAACCS) Sreuoeno OprnnrrNc PRoceouRE EP-1 0 SxoornRrruo Mrr-t- Sre 1 AcnoNyMs, AaenevnloNs, Atto lrurnls CRSO Corporate Radiation Safety Officer LAACC Large Area Charcoal Canister m Meter pCi Picocurie sec Second Revision No. 2 11t20t2021 4 Anfield Besources Holding Corp. - Shootaring Canyon Mill - Site 14'169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 107 ol 126 ANFTELD RESoURcES Hot-otr.tc CoRp. MoNtroRrNG Rqooru-222 Err,rrssrorus, aka Rnooru Flux MensuRrurrrs UstNc Lnnoe Anen Acrvnreo CHnncoal CnrursrcRs (LAACCS) SrnnonRo OpeRnrrruc PRocEouRE EP-10 SuoorenrNc Mrr-r- Srre STeruonRD OPERATING PRocEDURE EP.1 O MoruroRrNG RADo N-222 Erurssror.rs 2 PuRpose This Standard Operating Procedure (SOP) describes the monitoring methods which must be used in determining the radon-222 emissions from underground uranium mines, uranium mill tailings piles, phosphogypsum stacks, and other piles of waste material emitting radon. 3 Denrrrons Refer to references. 4 Appr-rcRslLtrY Measurement and Calculation of Radon Flux from Uranium Mill Tailings Piles 5 Dtscussror.r Frequency of FIux 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 paragraph2.1.4(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. DISTrugunoH 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. NuMeen Or Flux MeasuReuelrs 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 1112012021 5 Anfield Resources Holding corp. - shootarms":SllSSl! | iil,S i6J:? -2023 Radon Flux Measurement Report ArurrrLo REsouRcEs Holotr.tc CoRp. MorurroRrruc Rnooru-222 EMrssroNS, aka Rnoor Flux MresuReverurs Usrruc Lnnce AREA AcrvArEo CHnRcoel CRrursrens (LAACCS) SrnruoeRo OpERelNc PRoceoune SHoornnrnc Mrr-r- Srre EP-,IO (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 disposalwhich consists of only one region a minimum of '100 measurements are required. Resrrucrrorus ro 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. Rnooru 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. CelcuuloNs 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. At Where: Js = Mean flux for the total pile (pCi/m2-s) Ji = Mean flux measured in region i (pCi/m2-s) Ai = Area of region i (m2) At = Total area of the pile (m2) RepoRtrrue 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. 2 11t20t2021 6 Anfield Resources Holdins Corp. - Shootarins :S[lBSJg liil,S ]3J."? -2023 Radon Flux Measurement Report ANrtelo ResouRces Holotr.rc Conp. Mor'rrroRrNc RnooN-222 EMrssroNS, aka RADoN Fr-ux MeesuRel,lrNrs UstNc LRRoe AnEe Acrvnreo CHnnconl CnNrsrens (LAACCS) SrnruonRo OpeRnrrruo PnoceouRe EP-10 SuooreRruc Mrr-r- Srre 6 REspor.rsrBrLtrY The Corporate Radiation Safety Officer (CRSO) or his/her designee is responsible for implementing and following this procedure. 7 EeurpueruT AND MereRnls Sufficient Large Area Activated Charcoal Canister (LAACC) collectors as described in Reference 1. Sufficient canisters containing -180 grams of activated carbon that has been decayed and or baked to remove any residual radon adsorbed onto the activated carbon. Minimum/Maximum outdoor thermometer Rain gauge Shovel Field forms, pens, watch and camera 8 Pnoceoune Sampurc Pnoceounes 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 QuelrY AssuRANcE Slupr-rue PRoceouRes 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.2 1112012021 7 Anfield Resources Holdins Corp. - Shootarins Pary:a# I iil,S ]iJ."? - 2023 Radon Flux Measurement Report ArurrrLo RrsouRces HolorNc CoRp. Morurronrruc ReooN-222 En,ttsslol.rs, aka Rnooru FLUX MEASUREMENTS Usno Lnnor Anrr AcrrvRrro CHnnconl CnrursteRs (LAACCS) SrnuoRno OpeRerrNc PRoceouRr EP-10 SHooreRrxc Mrr-r- Srre Records shall include all applicable information associated with determining the sample measurement, calculations, observations, and comments. Sample Gusroov 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. Conamencnl Aruauwrclr- LABoRAToRy A third party commercial analytical laboratory or equivalent will be used to analyze the exposed charcoal. The third-party laboratory will follow their analytical SOPs for radon-222lgamma spectroscopy for exposed charcoal and comply with their commercial laboratory certifications predicated by EPA, NELAC or other certification authority. INTERNAL Qunlry Cournol Cxecrs Aro Fneeuerucv 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. Dara PRectsloN, AccuRAcy, AND Couplereness 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: tloo/o (c) Completeness: at least 85% of the measurements must yield useable results. 10 RecoRDs & Reponnuc Radon-222 Emissions Measurement Field Form are located in Appendix A 40 CFR Panr $61.250 DesrcrmoN OFiFAcrlrflEs 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 DercnmrrurNc CoMpLTANcE Compliance with the emission standard in this subpart shall be determined annually through the use of Method 115 of appendix B. When measurements are to be made over a one-year period, EPA shall be provided with a schedule of the measurement frequency to be used. The schedule may be submitted to EPA prior to or after the first measurement period. EPA shall be notified 30 days prior to any emissions test so that EPA may, at its option, observe the test. 40 CFR PART 561.254 ANNUAL REPoRTTNG ReeurRemrNrs (a) The owners or operators of operating existing mill impoundments shall report the results of the compliance calculations required in $ 61.253 and the input parameters used in making the calculation for each calendar year shall be sent to EPA by March 31 of the following year. Each report shall also include the following information: (1) The name and location of the mill. (2) The name of the person responsible for the operation of the facility and the name of the person preparing the report (if different). (3) The results of the testing conducted, including the results of each measurement. Revision No. 211t20t2021 B Anfield Resources Holdins Corp. - Shootarrns :TSISB# | i:i,S lflr"? - 2o23 Radon Flux Measurement Report Arurrrlo REsouRces Holor.tc Conp. MorurroRrruc Rnooru-222 EMrssroNS, aka Rnoor Flux Mensunel,rerurs UsrNG LARGE ARenAcrrvnrco CHnRconl Cnusruns (LAACCS) SleruoeRo OprRerNc PRoceoune SHoornRrnc Mrr-r- Srre 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, forthe 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 ReconoxeEprNc REeurREMENrs 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 Emission Standards for Hazardous Air Pollutants (NESHAPS): Radionuclides: Final Rule and Notice of Reconsideration, December 1 5, 1 989. 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 Part 41-Criteria Relating to the Operation of Uranium Mills and the Disposition of Tailings or Wasfes Produced by the Extraction or Concentration of Source Material From Ores Processed Primarily for Their Source Material Content, August 20'17. (1) (2) (3) (4) (5) Revision No. 2 1112012021 Anfield Resources Holding Corp I - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28, 2023 - Page 1 12 ot 126 ANFTELD ResouRces Holorno CoRp. MotrrtomNe Rnooru-222 Eurssrolrs, aka Rnooru Ftux MgesuReuexts Usrnc Lance AREA AcrvArED Cnnncon- ClNrsrERs (LAACCS) Srnruoano OpeRnlNo PnocEDURE EP-10 SxootlRrno Mrrr Srre 12 ApperuDx A Dnonams, FoRus & EPA Merroo 1 15 Revision No.2 1112012021 10 Anfield Besources Holding Corp. - Shoataring Canyon Mill - Site 1416s - 2023 Radon Flux Measurement Report December 28, 2Q23 - Page 1 13 of 126 DIAGRAITI OT LABGE AREA CfII.LECTOR E an IL Ef ;= 'il} - r/t EE EEiT E; Fo}:I,. FErE#5 tE_ETEq LfiU ==gEB 16.E ELrl |tu-iEp6 iurrUo>r{L Lo IJ {u o(J od{ttr {t{} { d} ETLft,) o a Ca i + Anfield Resources Holdins Corp. - Shootanns"PESIBBJ['liil,S ]f1."? -2023 Radon Flux Measurement Report lr Jozolr JoI;LUar l2Io(JG, I(Jolr l L) lr Jc,UJ (9G,zotl2UJxfzooG, C' T roHtldo.t s lBfdaFlEUoG,AJ==zoz(J(9zd.FooEtt te)JU(JJaFzot-(JoJ F ci EO '( J ; fp st < Z NF 6 CL aaoIJIz6JoEUIJ0afot)ucaoJurz#zU=(J Sx E( J > < r d <x s r u zx No zo AE OY ^ ng x Eo- 0)E.cq)Ea)=o(Ea)x=lrcoo6(rCf JNoo C\ I N 3b ru ) oo ) -= ha6 ' ,( L Ec > coON tr @ (o N o-O, P 6q ) =o :oacioOo) .coo-ooofoaoEEEc Method 115 8/412017 While we have taken steps to ensare the uccuracy of this Internet version of the document, it is not the olficial version. To see a complete version including any recent edits, visit: Irttns://*,ttw.ectr.gov/cgi-birt/ECFR?ouge-*brotrse and search under Title 40, Protection of Environment. Mnrnoo 1 l5-MoxrroRrNc FoR RADoN-222 EurssroNs This appendix describes the monitoring methods which must be used in determining the radon- 222 emissions from underground uranium mines, uranium mill tailings piles, phosphogypsum stacks, and other piles of waste material emitting radon. 1. Radon-222 Emissionsfrom Underground Uranium Mine Vents 1.1 Sampling Frequency and Calculation of Emissions. Radon-222 emissions from underground uranium mine vents shall be determined using one of the following methods: 1.1.1 Continuous Measurement. These measurements shall be made and the emissions calculated as follows: (a) The radon-222 concentration shall be continuously measured at each mine vent whenever the mine ventilation system is operational. (b) Each mine vent exhaust flow rate shall be measured at least 4 times per year. (c) A weekly radon-222 emission rate for the mine shall be calculated and recorded weekly as follows: A*: CrQrTl + CzQzTz + . . . CiQiTi Where: A,,: Total radon-222 emitted from the mine during week (Ci) Ci : Average radon-222 concentration in mine vent i(Cilm3) Qi: Volumetric flow rate from mine vent i(m3lhr) 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 yeat. 1.1.2 Periodic Measurement. This method is applicable only to mines that continuously operate their ventilation system except for extended shutdowns. Mines which start up and shut down their ventilation system frequently must use the continuous measurement method describe in Section 1.1.1 above. Emission rates determined using periodic measurements shall be measured and calculated as follows: 1 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28,2023 - Page 116 oJ 126 Method 115 81412077 (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 meastrement periods. (c) A weekly radon-222 emission rate shall be calculated for each weekly period according to the method described in Section 1.1.1. In this calculation T: 168 hr. (d) The annual radon-222 emission rate from the mine should be calculated as follows: 52-W-Ay=i(A*itA*z*...A*i) Where: A, : Annual radon-222 emission rate from the mine (Ci) Au : 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 Test Method 1 of appendix A to part 60 shall be used to determine velocity traverses. The sampling point in the duct shall be either the centroid of the cross section or the point of average velocity. 1.2.2 Test Method 2 of appendix A to part 60 shall be used to determine velocity and volumetric flow rates. 1.2.3 Test Methods 4'-6 or A-7 of appendix B, Method I 14 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 program shall be conducted in conformance with the programs described for Continuous Radon Monitors and Alpha Track Detectors in EPA 52011-89-009. (2) 2. Radon-222 Emissions from Uranium Mill Tailings Piles 2.1 Measurement and Calculation of Radon Flux from Uranium Mill Tailings Piles. 2 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site '14169 - 2023 Radon Flux Measurement Report December 28,2023 - Page 1 l7 of 126 Method 115 814/2017 2.1.1 Frequency of Flux Measurement. A single set of radon flux measurements may be made, or if the owner or operator chooses, more frequent measurements may be made over a one year period. These measurements may involve quarterly, monthly or weekly intervals. All radon measurements shall be made as described in paragraphs 2.1.2 through 2.1 .6 except that for measurements made over a one year period, the requirement of paragraph2.l.4(c) shall not apply. The mean radon flux from the pile shall be the arithmetic mean of the mean radon flux for each measurement period. The weather conditions, moisture content of the tailings and area of the pile covered by water existing at the time of the measurement shall be chosen so as to provide measurements representative of the long term radon flux from the pile and shall be subject to EPA review and approval. 2.1.2 Distribution of Flux Measurements. The distribution and number of radon flux measurements required on a pile will depend on clearly defined areas of the pile (called regions) that can have significantly different radon fluxes due to surface conditions. The mean radon flux shall be determined for each individual region of the pile. Regions that shall be considered for operating mill tailings piles are: (a) Water covered areas, (b) Water saturated areas (beaches), (c) Dry top surface areas, and (d) Sides, except where earthen material is used in dam construction. For mill tailings after disposal the pile shall be considered to consist of only one region. 2.1.3 Number of Flux Measurements. Radon flux measurements shall be made within each region on the pile, except for those areas covered with water. Measurements shall be made at regularly spaced locations across the surface of the region, realizing that surface roughness will prohibit measurements in some areas of a region. The minimum number of flux measurements considered necessary to determine a representative mean radon flux value for each type of region on an operating pile is: (a) Water covered area-no measurements required as radon flux is assumed to be zero, (b) Water saturated beaches-I00 radon flux measurements, (c) Loose and dry top surface-I00 radon flux measurements, (d) Sides-l00 radon flux measurements, except where earthern material is used in dam construction. For a mill tailings pile after disposal which consists of only one region a minimum of 100 measurements are required. 2.1.4 Restrictions to Radon Flux Measurements. The following restrictions are placed on making radon flux measurements: 3 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28,2023 - Page 1 18 of 126 Method 115 81412017 (a) Measurements shall not be initiated within 24 hours of a rainfall. (b) If a rainfall occurs during the 24 hour measurements period, the measurement is invalid if the seal around the lip of the collector has washed away or if the collector is surrounded by water. (c) Measurements shall not be performed if the ambient temperature is below 35 'F or if the ground is frozen. 2.1.5 Areas of Pile Regions. The approximate area of each region of the pile shall be determined in units of square meters. 2.1.6 Radon Flux Measurement. Measuring radon flux involves the adsorption of radon on activated charcoal in a large-area collector. The radon collector is placed on the surface ofthe pile area to be measured and allowed to collect radon for a time period of 24 hours. The radon collected on the charcoal is measured by gamma-ray spectroscopy. The detailed measurement procedure provided in appendix A of EPA 520/5-85-0029(1) shall be used to measure the radon flux on uranium mill tailings, except the surface of the tailings shall not be penetrated by the lip of the radon collector as directed in the procedure, rather the collector shall be carefully positioned on a flat surface with soil or tailings used to seal the edge. 2.1.7 Calculations. The mean radon flux for each region of the pile and for the total pile shall be calculated and reported as follows: (a) The individual radon flux calculations shall be made as provided in appendix A EPA 86 (l). 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' -l1r-|... JzAz...JiAt Where: J,: Mean flux for the total pile (pCi/m2-s) Ji: Mean flux measured in region i (pCi/m2-s) A; : Area of region i (-') 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 - 2023 Radon Flux Measurement Report December 28,2023 - Page 1 l9 of 126 At Method 1L5 3.0 Radon-222 Emissions from Phosphogypsum Stacks. 8/4/2017 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 .a(c) shall not apply. For measurements made over a one year period, the radon flux shall be the arithmetic mean of the mean radon flux for each measurement period. 3.1.2 Distribution and Number of Flux Measurements. The distribution and number of radon flux measurements required on a stack will depend on clearly defined areas of the stack (called regions) that can have significantly different radon fluxes due to surface conditions. The mean radon flux shall be determined for each individual region of the stack. Regions that shall be considered are: (a) Water covered areas, (b) Water saturated areas (beaches), (c) Loose and dry top surface areas, (d) Hard-packed roadways, and (e) Sides. 3.1.3 Number of Flux Measurements. Radon flux measurements shall be made within each region on the phosphogypsum stack, except for those areas covered with water. Measurements shall be made at regularly spaced locations across the surface of the region, realizingthat 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-l00 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 - 2023 Radon Flux Measurement Report December 28,2023 - Page 120 o, 126 Method 115 8/4/2oL7 A minimum of 300 measurements are required. A stack that has no water cover can be considered to consist of two regions, top and sides, and will require a minimum of only 200 measurements. 3.1.4 Restrictions to Radon Flux Measurements. The following restrictions are placed on making radon flux measurements: (a) Measurements shall not be initiated within 24 hours of a rainfall. (b) If a rainfall occurs during the 24 hour measurement period, the measurement is invalid if the seal around the lip of the collector has washed away or if the collector is surrounded by water. (c) Measurements shall not be performed if the ambient temperature is below 35 oF or if the ground is frozen. 3.1.5 Areas of Stack Regions. The approximate area of each region of the stack shall be determined in units of square meters. 3.1.6 Radon Flux Measurements. Measuring radon flux involves the adsorption of radon on activated charcoal in a large-area collector. The radon collector is placed on the surface ofthe stack area to be measured and allowed to collect radon for a time period of 24 hours. The radon collected on the charcoal is measured by gamma-ray spectroscopy. The detailed measurement procedure provided in appendix A of EPA 520/5-85-0029(1) shall be used to measure the radon flux on phosphogypsum stacks, except the surface 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 phosphoglpsum 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 shall be calculated by summing all individual flux measurements for the region and dividing by the total number of flux measurements for the region. (b) The mean radon flux for the total phosphogypsum stack shall be calculated as follows. IrAr -t JzAz * ...Ji.At J' -s- ,As Where: J, : Mean flux for the total stack (pCi/m2-s) Ji : Mean flux measured in region i (pCi/m2-s) Ai: Area of region i (rn') 5 Anfield Besources Holding Corp. - Shootaring Canyon Mill - Site 14',|69 - 2023 Radon Flux Measurement Report December 28,2023 - Page 121 ot 126 Method 115 At: Total area of the stack 8/4/2017 3.1.8 Reporting. The results of individual flux measurements, the approximate locations on the stack, and the mean radon flux for each region and the mean radon flux for the total stack shall be included in the emission test report. Any condition or unusual event that occurred during the measurements that could significantly affect the results should be reported. 4.0 Quality Assurance Procedures for Measuring Rn-222 Flux A. Savpr-nqc PRocEDURES Records of field activities and laboratory measurements shall be maintained. The following information shall be recorded for each charcoal canister measurement: (a) Site (b) Name of pile (c) Sample location (d) Sample ID number (e) Date and time on (f) Date and time off (g) Observations of meteorological conditions and comments Records shall include all applicable information associated with determining the sample measurement, calculations, observations, and comments. B. Sauplp 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. C. CILInRATToN PnocTDURES RNo FRrquENcv The radioactivity of two standard charcoal sources, each containing a carefully determined quantity of radium-226 uniformly distributed through 180g of activated charcoal, shall be measured. An efficiency factor is computed by dividing the average measured radioactivity of the two standard charcoal sources, minus the background, in cpm by the known radioactivity of the charcoal sources in dpm. The same two standard charcoal sources shall be counted at the beginning and at the end of each day's counting as a check of the radioactivity counting equipment. A background count using unexposed charcoal should also be made at the beginning and at the end of each counting day to check for inadvertent contamination of the detector or 7 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Reporl December 28, 2023 - Page 122 ol 126 Method 115 81412077 other changes affecting the background. The unexposed charcoal comprising the blank is changed with each new batch of charcoal used. D. INrsnNeL QuALrry CourRor- Cupcrs aNo FnnqunNcv 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 raditm-226. E. Dera PRectsIott, AccuRacy, AND CoMpLETENESS The precision, accuracy, and completeness of measurements and analyses shall be within the following limits for samples measuring greater than 1.0 pCi/m2-s. (a) Precision: l0o/o (b) Accuracy: +l0o/o (c) Completeness: at least 85% of the measurements must yield useable results. 5.0 RBrBnBNcps (l) Hartley, J.N. and Freeman, H.D., "Radon Flux Measurements on Gardinier and Royster phosphogypsum Piles Near Tampa and Mulberry, Florida," IJ.S. Environmental Protection Agency Report, EPA 520/5-85-029, January 1986. (2) Environmental Protection Agency, "Indoor Radon and Radon Decay Product Measurement Protocols", EPA 52011-89-009, U.S. Environmental Protection Agency, Washington, DC. (1e8e). 8 Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report December 28,2023 - Page 123 of 126 APPENDIX D PHOTOGRAPHS Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Badon Flux Measurement Report December 28,2023 - Page 124 ot 126 2023 16t Quarter 2023 l"t Quarter 2023 1st Quarter 2023 2"d Quarter 2023 2"d Quarter2023 2"d Quarter Anfield Resources Holdins corp. - Shootanng canH#,iiilt8 li;X? - 2023 Radon Flux Measurement Report 2023 3'd Quarter 2023 3td Quarter Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 December 28, 2023 - Page 126 ol 126 TJTAH DEPARTMENT OF ENVIRONMENTAL CII.,AI.JTY JAN 5 2024 DIVISION OF AIH QUALTTY 2023 3td Quarter 2023 4th Quarter 2023 4th Quarter 2023 4th Quarter Radon Flux Measurement Report