DAQ-2024-004781

1
DAQC-077-24
Site ID 14169 (B1)

MEMORANDUM

TO: FILE – ANFIELD RESOURCES, INC. – Shootaring Canyon Mill

THROUGH: Chad Gilgen, Minor Source Compliance Section Manager

FROM: Connor Kijowski, Environmental Scientist

DATE: January 26, 2024

SUBJECT: FULL COMPLIANCE EVALUATION, Minor, Garfield County

REVIEW DATE: January 19, 2024

SOURCE LOCATION: Shootaring Canyon Mill, Garfield County, Utah

SOURCE CONTACT: Sheryl Garling, RSO (Radiation Safety Officer) with R and D
Enterprises, from Casper, WY: 307- 277-3861;
[e-mail]

Joshua Bleak, Chief Executive Officer

OPERATING STATUS: Not Operating. Sheryl Garling with R and D Enterprises was
contacted January 19, 2024, and confirmed Shootaring Canyon
Mill is not currently operational and has not operated for many
years.

PROCESS DESCRIPTION: Uranium mill and tailing disposal.

APPLICABLE REGULATIONS: NESHAP Part 61 Subpart W. No Approval Order exists for this
source.

SOURCE INSPECTION
EVALUATION:

NESHAP Part 61 Subpart W

61.254 Annual reporting requirements

(a) Owners or operator of existing mill impoundments shall report the results of the compliance
calculations required in Section 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.

Status: In Compliance. The 2023 annual report was submitted on January 2, 2024. The test results
are reported at 15.0 pCi/m2-sec for the average annual emission.

(a)(1) Each report shall also include the following information (1-4)

) 1
2
(1) Name and location of mill

Status: In Compliance. On page four of the report, the name is listed as Shootaring Canyon Mill
located in Garfield County, Utah, approximately two miles north of Ticaboo, Utah.

(2) Responsible person, and person preparing the report

Status: In Compliance. The responsible person is listed as Joshua Bleak, Chief Executive Officer.
Sheryl Garling, RSO (Radiation Safety Officer) with R and D Enterprises, from Casper, WY
prepared the report. Ms. Garling’s phone number is [phone].

(3) Test results

Status: In Compliance. The summary result is found on page four of the report. Tailings disposal
cell result was 15.0 pCi/m2-sec. Test method 115, from 40 CFR Part 61, Appendix B was utilized to
determine compliance. Supporting documents are located in the appendix of the report.

(4) Signed and dated by corporate officer (contained certified statement).

Status: In Compliance. Joshua Bleak signed, dated, and certified the report on December 28, 2023.

(b) If facility is not in compliance….

Status: Not Applicable. The source appears to be in compliance with NESHAP Part 61, Subpart W.

(c) First report will cover emission of calendar year 1990.

Status: Not Applicable. The first report from Uranium One Americas, Inc. was received in 2008,
when Uranium One Americas, Inc. first purchased and operated the facility. The current owners
are Anfield Resources, Inc.

PREVIOUS ENFORCEMENT
ACTIONS: None.

COMPLIANCE STATUS &
RECOMMENDATIONS: In compliance with NESHAP Part 61, Subpart W. The annual
report addressed the required information and no further action is
recommended.

RECOMMENDATION FOR
NEXT INSPECTION: Call source contact to confirm operating status as the site has not
operated for many years. Verify annual radon flux report.

ATTACHMENTS: 2023 Annual Radon Flux Report

December 28, 2023 - Page 1 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
NATIONAL EMISSION STANDARDS

FOR

HAZARDOUS AIR POLLUTANTS (NESHAPS)

2023
RADON FLUX MEASUREMENT PROGRAM

UT AIR QUALITY ID 14169
ANFIELD RESOURCES HOLDING CORP.
SHOOTARING CANYON MILL
TICABOO, UTAH 84533

DECEMBER 28, 2023

PREPARED FOR:
ANFIELD RESOURCES HOLDING CORP.
SHOOTARING CANYON MILL
HWY 276 12 MILES NORTH OF BULLFROG
P. O. BOX 2101
LAKE POWELL, UTAH 84533

PREPARED BY:
R AND D ENTERPRISES, INC.
P.O. BOX 3321
CASPER, WY 82602

December 28, 2023 - Page 2 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
TABLE OF CONTENTS
PAGE
CERTIFICATION -40 CFR PART 61.254 (A)(4) ............................................................................... 3
INTRODUCTION……………………………………………………………………………………………..4
SITE DESCRIPTION ....................................................................................................................... 4
REGULATORY REQUIREMENTS AND REFERENCES ......................................................................... 5
SAMPLING METHODOLOGY........................................................................................................... 5
FIELD OPERATIONS ..................................................................................................................... 6
SAMPLE LOCATIONS,IDENTIFICATION, AND PLACEMENT ................................................................ 6
QUALITY CONTROL ...................................................................................................................... 7
SAMPLING PROCEDURES ............................................................................................................. 7
SAMPLE CUSTODY ....................................................................................................................... 7
CALIBRATION PROCEDURES AND FREQUENCY .............................................................................. 7
INTERNAL QUALITY CONTROL CHECKS AND FREQUENCY .............................................................. 8
DATA PRECISION,ACCURACY AND COMPLETENESS ...................................................................... 8
APPENDIX A SUMMARY TABLE OF ANALYTICAL RESULTS,PLACEMENT GRID AND LOCATION MAP…9
APPENDIX B LABORATORY ANALYTICAL RESULTS AND CERTIFICATIONS…………………………....13
APPENDIX C STANDARD OPERATING PROCEDURES………………………..…………………..……...75
APPENDIX D PHOTOGRAPHS………………………………………..……………………..……………124
December 28, 2023 - Page 3 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report

CERTIFICATION - 40 CFR PART 61.254 (a)(4)

I certify under penalty of law that I have personally examined and am familiar with the
information submitted herein and based on my inquiry of those individuals immediately
responsible for obtaining the information, I believe that the submitted information is true,
accurate and complete. I am aware that there are significant penalties for submitting false
information including the possibility of fine and imprisonment. See, 18 U.S.C. 1001.

ANFIELD RESOURCES HOLDING CORP. - CORPORATE OFFICER
12-28-2023

JOSHUA BLEAK, CHIEF EXECUTIVE OFFICER DATE

December 28, 2023 - Page 4 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
INTRODUCTION
In January 2017, Anfield Resources Holding Corp. (Company) notified the State of Utah,
Department of Environmental Quality (DEQ), Division of Air Quality (DAQ), that they would
perform radon flux measurements on a quarterly basis, as identified in Method 115, 2.1.1
Frequency of Flux Measurement. The Company’s site personnel and Radiation Safety
contractors, S.A. Garling and R.A. Garling, would provide the workforce to perform the quarterly
radon flux measurements utilizing twenty-six (26) Large Area Activated Charcoal Canister
(LAACC) collectors located on site. Pace Analytical, Inc., a certified, commercial analytical
laboratory, provides unexposed activated charcoal charged cans and analytical services.
July 2, 2020, G. Sorenson, Environmental Scientist, Utah Division of Air Quality, requested that
the Shootaring Canyon Mill, UT Air Quality Division, Site ID 14169 be included with all
correspondence and reports.
The Company provided the State of Utah, Department of Environmental Quality (DEQ), Division
of Air Quality (DAQ) a tentative (weather dependent) quarterly sampling schedule. Once quarterly
sampling dates were established, UDEQ-DAQ was provided advanced notice [Emails dated
12/27/2022, 02/08/2023, 03/01/2023, 04/21/2023, 07/04/2023, and 09/15/2023]. The UDEQ-
DAQ did not have a representative present during the sampling events.
The regulation, 40 CFR Part 61, Method 115, Section 2.1.7 Calculations states: The mean flux
for each region of the pile and for the total pile shall be calculated and reported as follows: …The
mean radon flux for each region of the pile shall be calculated by summing all individual flux
measurements for the region and dividing by the total number of flux measurements for the region.
The Shootaring Canyon Mill, UT Air Quality Site Identification Number 14169, tailings cell consists
of a single, one-half acre region of dry tailings with several feet of interim cover of dry native
material on the top surface (Appendix A).
In 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 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 pCi/m2-sec (MDL of 0.5) and a maximum
sample measure of 37.5 pCi/m2-sec. In 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.
SITE DESCRIPTION
The Shootaring Canyon Mill facility is in Garfield County in southeastern Utah, approximately two
miles north of Ticaboo, Utah. The mill and tailings disposal cell were constructed between 1978
and 1981 and began operations in 1982 for the purpose of extracting uranium. The Nuclear
Regulatory Commission issued a source materials license on September 21, 1979. Between April
and August 1982, the mill produced approximately 25,000 cubic yards of tailings which were
deposited in the disposal cell and covered with native soil. The disposal cell is contained in an area
of approximately 2,508 m2, equivalent to approximately one-half acre.
December 28, 2023 - Page 5 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
In August 2004, the State of Utah, was granted an amendment, from the US NRC, …to assume
regulatory authority over the possession and use of 11e.(2) byproduct material, including the
facilities that generate such material. March of 2005, the State of Utah, Department of
Environmental Quality, Division of Radiation Control, issued a Radioactive Material License
(RML), UT0900480, to Plateau Resources Ltd for the Shootaring Canyon Mill Site. Utah provided
the appropriate approvals for the Shootaring Canyon Mill RML to be successfully transferred
throughout the years as the property ownership changed.

REGULATORY REQUIREMENTS AND REFERENCES
Radon emissions from the Shootaring Canyon Mill are regulated by the State of Utah’s Division of
Radiation Control under RML UT0900480 and administered by the Utah Division of Air Quality
under standards set by the Environmental Protection Agency (EPA) in 40 CFR Part 61, Subpart
W. The State of Utah, by reference, incorporated these rules in Utah Administrative Code R307-
214-1, These regulations are a subset of the National Emission Standards for Hazardous Air
Pollutants (NESHAPs). According to subsection 61.252 Standard, (a) radon-222 emissions to ambient
air from an existing uranium mill tailings pile shall not exceed an average of 20 pCi/m2-s for each
pile or region. Subsection 61.253, Determining Compliance, states that: Compliance with the
emission standard in this subpart shall be determined annually through the use of Method 115 of
Appendix B.

EPA Method 115, per 40 Code of Federal Regulations (CFR), Part 61, Environmental Protection
Agency, National Emission Standards for Hazardous Air Pollutants (NESHAPs): Radionuclides:
Final Rule and Notice of Reconsideration, December 15, 1989, updated April 2017.

EPA Method 115’s technical information referenced EPA’s publication 52015-85-029, Radon Flux
Measurements on Gardinier and Royster Phosphogypsum Piles Near Tampa and Mulberry,
Florida.

SAMPLING METHODOLOGY
Radon emissions were measured using Large Area Activated Charcoal Canisters (LAACC)
collectors in conformance with 40 CFR, Part 61, Appendix B, Method 115, Monitoring for
Radon-222 Emissions. LAACCs are passive gas adsorption sampling devices used to
determine the flux rate of radon-222 gas from a surface. The canisters were constructed using a
10-inch diameter PVC end cap containing a bed of approximately 180 grams of activated, granular
activated charcoal. The prepared charcoal was placed in the canisters on a support grid on top of
a 1/2-inch-thick layer of foam and secured with a retaining ring under 1/2 inches of foam (see
diagram in SOP, Appendix C).

Twenty-five (25) canisters were deployed quarterly, throughout the covered tailings disposal cell
region, on a marked, predetermined grid. Each charged canister was placed directly onto the
surface (face down, without the collectors penetrating the cell cover material); local native material
was used to seal (berm at base of the collector) the LAACC to the surface of the cell; collectors were
exposed to the surface for 24 hours. Radon gas adsorbs onto the charcoal and the subsequent
radioactive decay of the entrained radon gas (222Rn) 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 original total activity of the adsorbed radon gas was calculated
from the gamma ray measurements using calibration factors derived from cross-calibration of
standard sources containing known total activities of radium-226, in secular equilibrium with
radon-222, and with identical geometry to the collected samples.
December 28, 2023 - Page 6 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
After 24-hour exposure period, the LAACCs are removed and transported to an enclosed work area
so that the exposed charcoal can be transferred to steel sample containers, sealed, identified, labeled,
and packaged to be transported to Pace Analytical’s Sheridan, WY laboratory facility.
FIELD OPERATIONS
The site staff and contract radiation safety staff prepared the LAACCs and deployed following
the SOP included in Appendix C.
No sampling event was initiated within 24 hours of precipitation.
During 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.
SHOOTARING CANYON MILL –UT SITE ID 14169
SUMMARY OF LAACC MEASUREMENTS
QUARTER 1st QUARTER
2023
2nd QUARTER
2023
3rd QUARTER
2023
4th QUARTER
2023
LOCATION RADON FLUX AVERAGE TABLE
LAB ID S2303168 S2304348 S2307218 S2311097
DATE
DEPLOYED 03/09/2023 04/23/2023 07/14/2023 11/04/2023
DATE
RETRIEVED 03/10/2023 04/24/2023 07/15/2023 11/05/2023
SAMPLE LOCATIONS,IDENTIFICATION, AND PLACEMENT
A grid system, consisting of one hundred sample points, with designated sample identification,
was established at the onset of the radon emissions program. The grid locations are distributed
throughout the approximate half-acre of the covered tailings disposal cell region. A sample
identification number (ID) was assigned to every sample point, using a sequential alphanumeric
system indicating the physical location within the region (e.g., A1…J10).
The LAACC identification number and the corresponding tailings cell grid location were
documented on the field note form, in addition to recording the date and time of placement.
December 28, 2023 - Page 7 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 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.
QUALITY CONTROL
In 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. All charcoal (new and
recycled) was dried at 110°C, canned, and confirmed to be blank prior to shipment to the site.
Approximately 180-gram aliquots of dried charcoal were weighed and placed in sample containers.
The contract laboratory’s Radon Flux and Balance SOPs are included in Appendix C.

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 Information Management System (LIMS).

The third-party laboratory counted blank charcoal prior to shipping to the site. Sample data is
included with each report. The third-party commercial laboratory established a lower limit of
detection of 0.5 pCi/m2-s for radon-222 emissions testing on charcoal.
One duplicate field sample was measured per sampling event. The third-party laboratory provided
duplicate sample results, which are documented in the analytical reports. Data is summarized for
each quarter in a tabular format and is included in the analytical section of this report.
Photographs were taken during each sampling event, and several have been included in this
report.
SAMPLING PROCEDURES
Field forms were created to document the site/pile name, sample location, sample ID, deploy and
retrieval dates, and meteorological conditions and comments.
SAMPLE CUSTODY
A Chain of Custody was used for sample submittal and sequence of sample transfer.
CALIBRATION PROCEDURES AND FREQUENCY
Radioactive standards in a similar geometry and matrix (charcoal) of the samples were used in
determining instrument calibration and functionality.
Pace Analytical’s procedures for gamma counting complies with NELAP and EPA analytical
methodologies to include Method 115. Pace Analytical’s SOP is included in Section C of this
report.
December 28, 2023 - Page 8 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
INTERNAL QUALITY CONTROL CHECKS AND FREQUENCY
Method 115, Section D. states; The charcoal from every tenth exposed canister shall be
recounted. Five percent of the samples analyzed shall be either blanks (charcoal having no
radioactivity added) or samples spiked with known quantities of radium-226.

This method is not conducive for sample spiking in the field or at the laboratory. Spiking individual
samples would require the sample to be unsealed, which would compromise the integrity of the
exposed charcoal, thereby rendering it invalid.

Pace Analytical’s procedures for gamma counting, required for 115, complies with NELAP and
EPA analytical methodologies. Pace Analytical’s SOP is included in Section C of this report.

DATA PRECISION, ACCURACY AND COMPLETENESS
The precision, accuracy, and completeness of measurements and analyses shall be within the
following limits for samples measuring greater than 1.0 pCi/m2 -s.

Precision: 10% - Precision refers to the closeness of two or more measurements to each other.
In 2023, 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: ±10% - Accuracy refers to the closeness of a measured value to a standard or known
value. In 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. In 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.

December 28, 2023 - Page 9 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
APPENDIX A
SUMMARY TABLE OF ANALYTICAL RESULTS,
PLACEMENT GRID
AND
LOCATION MAP

December 28, 2023 - Page 10 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
ANFIELD RESOURCES HOLDING CORP.
SHOOTARING CANYON MILL
UT AIR QUALITY ID 14169
2023 RADON FLUX AVERAGE
No.
1ST QUARTER 2ND QUARTER 3RD QUARTER 4TH QUARTER
GRID ID
pCi/m2-sec
GRID ID
pCi/m2-sec
GRID ID
pCi/m2-sec
GRID ID
pCi/m2-sec
DATE
DEPLOYED

DATE
DEPLOYED

DATE
DEPLOYED

DATE
DEPLOYED
03/09/2023 04/23/2023 07/14/2023 11/04/2023
DATE
RETRIEVED
DATE
RETRIEVED
DATE
RETRIEVED
DATE
RETRIEVED
03/10/2023 04/24/2023 07/15/2023 11/05/2023
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 I-1 16.2
7 A-7 15.7 D-2 15.3 F-7 10.1 I-2 9.6
8 A-8 16.3 D-3 14.8 F-8 6.6 I-3 17.2
9 A-9 27.0 D-4 15.7 F-9 3.5 I-4 6.9
10 A-10 7.8 D-5 15.5 F-10 5.8 I-5 7.9
11 B-1 28.1 D-6 12.2 G-1 19.0 I-6 4.9
12 B-2 8.6 D-7 15.5 G-2 24.1 I-7 6.1
13 B-3 21.1 D-8 23.8 G-3 25.3 I-8 6.7
14 B-4 36.0 D-9 0.7 G-4 22.2 I-9 19.4
15 B-5 14.8 D-10 2.6 G-5 16.4 I-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 16.1 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-10 27.3
- MIN 7.8 MIN 0.7 MIN 3.5 MIN 1.0
- MAX 37.5 MAX 23.8 MAX 25.3 MAX 30.8
- STDEV 8.0 STDEV 6.5 STDEV 6.6 STDEV 8.3
- AVERAGE 20.8 AVERAGE 13.2 AVERAGE 14.9 AVERAGE 11.1

Data Type 2023 Data Set
MIN pCi/m2-sec 0.7
MAX, pCi/m2-sec 37.5
STDEV, pCi/m2-sec 8.1
AVERAGE, pCi/m2-sec 15.0

December 28, 2023 - Page 11 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
ANFIELD RESOURCES HOLDING CORP.
SHOOTARING CANYON MILL
UT AIR QUALITY ID 14169
TAILINGS CELL GRID
2023 RADON FLUX RESULTS

DATA SET SUMMARY
MINIMUM 0.7 pCi/m2-sec
MAXIMUM 37.5 pCi/m2-sec
STANDARD DEVIATION 8.1 pCi/m2-sec
AVERAGE 15.0 pCi/m2-sec

GRID KEY
RADON FLUX RESULT IN pCi/m2-sec

NORTH
WEST 10 9 8 7 6 5 4 3 2 1 NORTH
EAST
J 4TH-25
27.3
4TH -24
23.6
4TH -23
7.9
4TH -22
3.5
4TH -21
3.3
4TH-20
1.7
4TH -18
3.7
4TH -18
9.0
4TH -17
9.7
4TH -16
24.1 J
I 4TH-15
30.8
4TH -14
19.4
4TH -13
6.7
4TH -12
6.1
4TH -11
DUP 26
4.9/5.4
4TH-10
7.9
4TH -8
6.9
4TH -8
17.2
4TH -7
9.6
4TH -6
16.2 I
H 4TH-5
1.0
4TH -4
13.1
4TH -3
7.4
4TH -2
7.3
4TH -1
8.6
3RD – 25
22.5
3RD – 24
14.8
3RD – 23
18.6
3RD – 22
17.9
3RD – 21
24.1 H
G
3RD – 20
DUP 26
12.9/15.9
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 G
F 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
3RD – 3
14.2
3RD – 2
9.0
3RD – 1
13.9 F
E 2ND-25
4.2
2ND-24
1.3
2ND-23
14.4
2ND-22
16.1
2ND-21
15.7
2ND-20
13.8
2ND-19
15.5
2ND-18
10.6
2ND-17
9.2
2ND-16
DUP 26
12.4/13.8
E
D 2ND-15
2.6
2ND-14
0.7
2ND-13
23.8
2ND-12
15.5
2ND-11
12.2
2ND-10
15.5
2ND-9
15.7
2ND-8
14.8
2ND-7
15.3
2ND-6
21.1 D
C 2ND-5
5.3
2ND-4
11.9
2ND-3
22.7
2ND-2
23.2
2ND-1
16.5
1ST – 25
DUP 26
18.1/18.8
1ST – 24
21.9
1ST – 23
11.1
1ST – 22
17.1
1ST – 21
37.5 C
B 1ST – 20
11.9
1ST – 19
22.4
1ST – 18
23.5
1ST – 17
17.9
1ST – 16
18.2
1ST – 15
14.8
1ST – 14
36.0
1ST – 13
21.1
1ST – 12
8.6
1ST – 11
28.1 B
A 1ST – 10
7.8
1ST – 9
27.0
1ST – 8
16.3
1ST – 7
15.7
1ST – 6
14.4
1ST – 5
24.6
1ST – 4
33.9
1ST – 3
29.0
1ST – 2
19.3
1ST – 1
22.8 A
SOUTH
WEST 10 9 8 7 6 5 4 3 2 1 SOUTH
EAST

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Tailings Disposal
Cell Location
Anfield Resources Holding Corp.
Shootaring Canyon Mill Site
12 Miles North of Bullfrog
Lake Powell, UT 84533
2023 Radon Flux/NESHAPs
Location Map
December 28, 2023 - Page 13 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
APPENDIX B
LABORATORY
ANALYTICAL RESULTS
AND
CERTIFICATIONS

December 28, 2023 - Page 14 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
CHAIN OF CUSTODY RECORD -fnter-IVIountaio Labs
Sheridan, WY and Gillette, WY
1 1ofPage
All shaded fields must be completed.#WEBINTtR-MOUNTAIN LAOS
This is a legai documeni; any misrepresenlation may be construed as fraud.
Teloplionc #Sampler (Signature/Attestation of Authenticity)Project IdentificationiClient Name
‘^ARLlNc::)307 277 3861ANFIELD RESOURCES HOLDING INC.SHOOTARING CANYON MILL PROJECT**
ANALYSES / PARAMETERSContact NatnoReport Address
SHERYL GARLINGON FILE
[e-mail]
><307 277 3861Invoice Address Phone 3
ON FILE Purchase Order f/Quote U u.
VERBAL REMARKS
O
SAMPLE
^\r IDENTIFICATION
TIMELAB ID
(Lab Use Only)
DATE #of Q<UJ
SAMPLED Matrix Containers CL.n
/■
S <See field notes for3/JG/2023Deployed Date
/9
3/)4/2023 date & time exposedRetrival Date
» 3^LAACC location & Can IDSL26X26-LAACC Exposed Charcoal Cans
4-Blank Charcoal Cans See Wade for requiredSL4X
Method 115 REQUIRED-Unexposed cans/Do not Count,o
r 6 QA Before&After STDsreturn to inventrory
SL X Blank, Low & High StdLab select 4 sample dups 4
4 Dups requested* |L A , 1 74.,*7 vL.
Count ASAP
Utah AQ Site ID14169
;Reeeiy6di^.pjghat^re/^0
i M //‘VsheryL <LjftrUrv0 vu y\
1)\
'Mo:9 ».
Check desired service Compliance Monitoring ?
Program (SDWA, NPDES,...) NESHAP
PWSID / Permit # j
Y
Chlorinated?
Sample Disposal; Lab Xrwyi.?ntiTerm-&iffrttejmab3.'dOiVi"“— *
CONFIRM THAT 4 BLANKS AND 4 DUPS AREUPSWater
Soil
Solid
Filter
Other
WT►I-
'i' Standard turnaround
□ RUSH-5 Working Days
□ URGENT - < 2 Working Days
LOGGED IN AND REPORTED□ FedEx
□ USPS
^ Hand Carried
Other _ ..►I-
SL
SD
FT
Rush & Urgent Surcharges will ho applied ClientOT ■R«r^6-W«fer
December 28, 2023 - Page 15 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
PAGE / OF 2
RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE
LOCATION/TAILS CELL ID: SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169/
CLIENT; ANFIELD RESOURCES HOLDING CORP
/
MU A0'Vi£/S.cAsT J H-6,WEATHER CONDITION;PRECIP 24 HOUR Prior AND DAY OF;MIN.TEMP:C.OOL
-K
(aamma
HR/hr
MM/DD/YY
03/^2023
MM/DD/YY
03/>l/2023
/£> ifi-
24 HR TIME
RETRIEVE
MM/DD/YY2023 QUARTER SAMPLING EVENT
oSTAILS
LOCATION
ID/COORD
LAACC
UNIT#
CHARCOAL
CAN ft
SITE FIELD
STAFF INITIALS
LAB SAMPLE COUNT
MINUTES
GROSS
COUNTS24 HR TIME
DEPLOY/SET
24 HR TIME
START COUNT
COMMENTSID#
RAG/SAG/a' TAL- /t A1 /O', lo /<.A n l yV
RAG/SAG/^a)AL- 3 A2^ aA //t wI o'■ n n
RAG/SAG/2./9z A A3AL- 2 / / ' V V /8/o: /Z
RAG/SAG/JUOAL- 23 — Oj'-J5 A A4 /820 t /5
RAG/SAGA5AL- 20 /; ● V5“/o: /5 /C,
RAG/SAG/A'»9AL- /f A6ZS A 22^/o: lu n
RAG/SAG/2-/rtA7AL- 7 — C'o'O /5^U A // "V*5*20 u /a
RAG/SAG/i_<»)AL- ;//5 A A8 22 ●'/O > / Si /S>— 0-'
RAG/SAG/z — a.? 9A9AL- 8 7 P >0//-VO /a/O '^‘XO
RAG/SAG yz noAlOAL- J9 /c): Z J35 A /5
RAG/SAG h.ra -w/B1/Z AAL- /Q,//-/7/O'.'IZ
HAGfSAG/l -°/x/a: 24Z2 A f/ :B2 ■V5AL- 21 /r
RAG/SAG/Z.O / 7AL- 26>B33^^ A / 0 ' ZV
RAG/SAG/ZirtB4AL- /8 }l i ‘iS IS‘2 L.
rag/sag/Zj'^AL- i5 /o ; 272^ A B5 /7
rag/sag/z v»AL- /3 B65 A 1/ &jo‘ z3 /S
RAG/SAGAL- /a /O'- S>o>B7 //- HI/ A
December 28, 2023 - Page 16 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
PAGE^^OF_:^
RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE
LOCATION/TAILS CELL ID; SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169CLIENT: ANFIELD RESOURCES HOLDING CORP
7 ir-> 3 ‘i-*osrerfiic/fST / coo£.PRECIP 24 HOUR Prior AND DAY OE:MIN TEMP:WEATHER CONDITION:
MM/DD/YY
03/;^2023
/o ^sV
24 HR TIME
RETRIEVE
MM/DD/YYMM/DD/YY
03/>CI/2023
o5
24 HR TIME
DEPLOY/SET
Gamma
HR/hr2023 QUARTER SAMPLING EVENT
TAILS
LOCATION
ID/COORD
SITE FIELD
STAFF INITIALS
LAB SAMPLE COUNT
MINUTES
GROSS
COUNTS
LAACC
UNIT#
CHARCOAL
CAN #
COMMENTS24HRTIME
START COUNT
ID#
RAG/SAG/z/OAL- 9 j9B83Aio 3/H'.
RAG/SAG/A^r)AL- Is,B9 - 0/9 jS/I l ^7I
RAG/SAG///9 -AL- 5 BIO21 A /a^'.33 nHi
rag/sag/a^wAL-Cl / o n 3S n'11A
rag/sag/z/w'^^J^ -'<2^7AL- H Bk Cl iS/c -3L,
(>3RAG/SAG/AiV)AL- IZ C3 49/o =37 // ^*5 /4cZL A D
RAG/SAG/A/C4 /O'31AL- /3 2. A <p
RAG/SAG/ajOAAL-C5 /8/o*.B9 /I t 50
RAG/SAG/a.'V?AL- 2H fo n3i A C5-DUP /8n: SO
—
'●4c»BLANKB-1 ItpA-
BLANKB-2 — O
l7Ar
7o— oB-3 BLANK
-oj-^-oj/33^BLANKB-4
CAN ID-33A LAB DUP-1LD-1
CAN ID-aSA LAB DUP-1LD-2
CAN ID-17 A LAB DUP-1LD-3
CAN ID-LAB DUP-1LD-4
December 28, 2023 - Page 17 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
3/15/2023Date:
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Samples A1, A10, A2, A3, A4, A5, A6, A7, A8, A9, B1, B10, B2, B3, B4, B5, B6, B7, B8, B9, BLANK-1, BLANK-2, BLANK-3,
BLANK-4, C1, C2, C3, C4, C5 and C5-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 141EPA 600/2-78-054 methods
NDEP Mining Methods
40 CFR Part 50, Appendices B, J, L, O and FEM EQL-0310-189
IO Compendium Methods
Clean Water Act Methods Update Rule for the Analysis of Effluent, current version.
ASTM approved and recognized standards
ISO approved and recognized standards
USDA Handbook 60
Soil Survey Laboratory Manual Ver 4.0
ASA/SSSA 9 Methods of Analysis Part 2, 1982
ASA/SSSA Methods of Analysis Book 5 Part 3, 1996
Other industry approved methods

All Quality Control parameters met the acceptance criteria defined by EPA and Pace Analytical except as indicated in this
case narrative:
Project:Shootaring CMP-UT AQ ID 14169
CLIENT:Anfield Resources
Lab Order:S2303168
CASE NARRATIVE
Report ID:S2303168001
Wade Nieuwsma, Laboratory Operations Manager
Entire Report Reviewed by:
Page 1 of 2
December 28, 2023 - Page 18 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
3/15/2023Date:
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
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
S Spike Recovery outside accepted recovery limits
U Analyte below method detection limit
X Matrix Effect
Page 2 of 2
December 28, 2023 - Page 19 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:Shootaring CMP-UT AQ ID 14169
Work Order:S2303168
Date Reported:
Sample Analysis Report
Report ID:S2303168001
Date Received:3/13/2023
COC:Sampler:RAG/SAG/LM
3/15/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:A1
Lab ID:S2303168-001 Collection Date:3/10/2023 11:44:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 10:430.5 pCi/m2-sec22.8 WN EPA 115Radon-222
Client Sample ID:A2
Lab ID:S2303168-002 Collection Date:3/10/2023 11:44:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 10:540.5 pCi/m2-sec19.3 WN EPA 115Radon-222
Client Sample ID:A3
Lab ID:S2303168-003 Collection Date:3/10/2023 11:44:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 10:580.5 pCi/m2-sec29.0 WN EPA 115Radon-222
Client Sample ID:A4
Lab ID:S2303168-004 Collection Date:3/10/2023 11:44:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 11:020.5 pCi/m2-sec33.9 WN EPA 115Radon-222
Client Sample ID:A5
Lab ID:S2303168-005 Collection Date:3/10/2023 11:45:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 11:050.5 pCi/m2-sec24.6 WN EPA 115Radon-222
Client Sample ID:A6
Lab ID:S2303168-006 Collection Date:3/10/2023 11:45:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 11:140.5 pCi/m2-sec14.4 WN EPA 115Radon-222
Page 1 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 20 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:Shootaring CMP-UT AQ ID 14169
Work Order:S2303168
Date Reported:
Sample Analysis Report
Report ID:S2303168001
Date Received:3/13/2023
COC:Sampler:RAG/SAG/LM
3/15/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:A7
Lab ID:S2303168-007 Collection Date:3/10/2023 11:45:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 11:200.5 pCi/m2-sec15.7 WN EPA 115Radon-222
Client Sample ID:A8
Lab ID:S2303168-008 Collection Date:3/10/2023 11:45:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 11:250.5 pCi/m2-sec16.3 WN EPA 115Radon-222
Client Sample ID:A9
Lab ID:S2303168-009 Collection Date:3/10/2023 11:46:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 11:300.5 pCi/m2-sec27.0 WN EPA 115Radon-222
Client Sample ID:A10
Lab ID:S2303168-010 Collection Date:3/10/2023 11:46:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 11:340.5 pCi/m2-sec7.8 WN EPA 115Radon-222
Client Sample ID:B1
Lab ID:S2303168-011 Collection Date:3/10/2023 11:49:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 11:570.5 pCi/m2-sec28.1 WN EPA 115Radon-222
Client Sample ID:B2
Lab ID:S2303168-012 Collection Date:3/10/2023 11:49:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 12:010.5 pCi/m2-sec8.6 WN EPA 115Radon-222
Page 2 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 21 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:Shootaring CMP-UT AQ ID 14169
Work Order:S2303168
Date Reported:
Sample Analysis Report
Report ID:S2303168001
Date Received:3/13/2023
COC:Sampler:RAG/SAG/LM
3/15/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:B3
Lab ID:S2303168-013 Collection Date:3/10/2023 11:48:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 12:050.5 pCi/m2-sec21.1 WN EPA 115Radon-222
Client Sample ID:B4
Lab ID:S2303168-014 Collection Date:3/10/2023 11:45:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 12:110.5 pCi/m2-sec36.0 WN EPA 115Radon-222
Client Sample ID:B5
Lab ID:S2303168-015 Collection Date:3/10/2023 11:48:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 12:140.5 pCi/m2-sec14.8 WN EPA 115Radon-222
Client Sample ID:B6
Lab ID:S2303168-016 Collection Date:3/10/2023 11:48:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 12:200.5 pCi/m2-sec18.2 WN EPA 115Radon-222
Client Sample ID:B7
Lab ID:S2303168-017 Collection Date:3/10/2023 11:47:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 12:250.5 pCi/m2-sec17.9 WN EPA 115Radon-222
Client Sample ID:B8
Lab ID:S2303168-018 Collection Date:3/10/2023 11:47:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 12:320.5 pCi/m2-sec23.5 WN EPA 115Radon-222
Page 3 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 22 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:Shootaring CMP-UT AQ ID 14169
Work Order:S2303168
Date Reported:
Sample Analysis Report
Report ID:S2303168001
Date Received:3/13/2023
COC:Sampler:RAG/SAG/LM
3/15/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:B9
Lab ID:S2303168-019 Collection Date:3/10/2023 11:47:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 12:370.5 pCi/m2-sec22.4 WN EPA 115Radon-222
Client Sample ID:B10
Lab ID:S2303168-020 Collection Date:3/10/2023 11:47:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 12:410.5 pCi/m2-sec11.9 WN EPA 115Radon-222
Client Sample ID:C1
Lab ID:S2303168-021 Collection Date:3/10/2023 11:49:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 12:540.5 pCi/m2-sec37.5 WN EPA 115Radon-222
Client Sample ID:C2
Lab ID:S2303168-022 Collection Date:3/10/2023 11:49:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 13:010.5 pCi/m2-sec17.1 WN EPA 115Radon-222
Client Sample ID:C3
Lab ID:S2303168-023 Collection Date:3/10/2023 11:49:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 13:080.5 pCi/m2-sec11.1 WN EPA 115Radon-222
Client Sample ID:C4
Lab ID:S2303168-024 Collection Date:3/10/2023 11:50:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 13:140.5 pCi/m2-sec21.9 WN EPA 115Radon-222
Page 4 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 23 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:Shootaring CMP-UT AQ ID 14169
Work Order:S2303168
Date Reported:
Sample Analysis Report
Report ID:S2303168001
Date Received:3/13/2023
COC:Sampler:RAG/SAG/LM
3/15/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:C5
Lab ID:S2303168-025 Collection Date:3/10/2023 11:50:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 13:200.5 pCi/m2-sec18.1 WN EPA 115Radon-222
Client Sample ID:C5-DUP
Lab ID:S2303168-026 Collection Date:3/10/2023 11:50:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 13:290.5 pCi/m2-sec18.8 WN EPA 115Radon-222
Client Sample ID:BLANK-1
Lab ID:S2303168-027 Collection Date:
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 13:340.5 pCi/m2-secND WN EPA 115Radon-222
Client Sample ID:BLANK-2
Lab ID:S2303168-028 Collection Date:
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 13:430.5 pCi/m2-secND WN EPA 115Radon-222
Client Sample ID:BLANK-3
Lab ID:S2303168-029 Collection Date:
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 13:510.5 pCi/m2-secND WN EPA 115Radon-222
Client Sample ID:BLANK-4
Lab ID:S2303168-030 Collection Date:
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
03/14/2023 14:100.5 pCi/m2-secND WN EPA 115Radon-222
Page 5 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 24 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:Shootaring CMP-UT AQ ID 14169
CLIENT:Anfield Resources
Work Order:S2303168
ANALYTICAL QC SUMMARY REPORT
Report ID:S2303168001
3/15/2023Date:
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Radon Flux Sample Type MBLK Units:pCi/m2-sec
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:208675MB START (03/14/23 10:18)
Radon-222 0.5ND
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:208675MB END (03/14/23 14:35)
Radon-222 0.5ND
Radon Flux Sample Type LCS1 Units:pCi/m2-sec
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo: 208675RADSTD-16-1 START (03/14/23 08:13)
387 90 - 110Radon-222 1010.5391
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:208675RADSTD-16-1 END (03/14/23 15:05)
387 90 - 110Radon-222 1020.5393
Radon Flux Sample Type LCS2 Units: pCi/m2-sec
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:208675RADSTD-16-2 START (03/14/23 10:30)
3870 90 - 110Radon-222 1050.54050
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:208675RADSTD-16-2 END (03/14/23 14:49)
3870 90 - 110Radon-222 1040.54010
Radon Flux Sample Type DUP Units:pCi/m2-sec
Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult
RunNo:208675S2303168-001ADUP (03/14/23 10:48)
22.8 101.07Radon-222 0.522.5
Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult
RunNo: 208675S2303168-010ADUP (03/14/23 11:45)
7.8 102.64Radon-222 0.58.0
Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult
RunNo:208675S2303168-020ADUP (03/14/23 12:47)
11.9 100.170Radon-222 0.511.9
Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult
RunNo: 208675S2303168-030ADUP (03/14/23 14:21)
ND 10Radon-222 0.5ND
Page 1 of 1
December 28, 2023 - Page 25 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
- CHAIN OF CUSTODY RECORD -Inter-Mountain Labs
Sheridan, WY and Gillette, WY
1 of 1Pagen lYTL All shaded fields must be completed.
This is a legal document; any misrepresentation may be construed as fraud.
#WEBINTER-MOUNTAIN LABS
Telephone #
307 277 3861
Sampler (Signature/Attestation of Authenticity)Project IdentificationClient Name
ANFIELD RESOURCES HOLDING INC.SHOOTARING CMP-UT AQ ID 14169 3l-f5R-YI- C^AK.UNq
ANALYSES / PARAMETERSContact NameReport Address
SHERYL GARLINGON FILE
[e-mail]
X307 277 3861Invoice Address Phone D
ON FILE Quote #Purchase Order #LL.
VERBAL z REMARKSO
SAMPLE
IDENTIFICATION
TIME aLAB ID
(Lab Use Only)
DATE #ofS <lU SAMPLED Matrix Containers a;
1 See field notes for4/23/2023Deployed Date
date & time exposed,I Retrival Date 4/24/2023
LAACC location & Can ID26-LAACC Exposed Charcoal Cans SL 26 X
See Wade for requiredSLX4-Blank Charcoal Cans 4
Method 115 REQUIRED-Unexposed cans/Do not Count,
WMiJ QA Before&After STDs6return to inventrory
Blank, Low & High Std7SLXLab select 4 sample dups 4
4 Dups requested
Count ASAP
Utah AQ SitelD14169
Sheryl qHrUiA-0
Ok
ADDITIONAL REMARKSCOMPLIANCE INFORMATIONMATRIX CODES TURN AROUND TIMESSHIPPING INFO
Check desired service
* Standard turnaround
□ RUSH - 5 Working Days
□ URGENT - < 2 Working Days
Rush & Urgent Surcharges will be applied
Compliance Monitoring ?
Program (SDWA, NPDES,...) NESHAP
PWSID / Permit #
Y
Chlorinated? -
Sample Disposal: Lab X Ciient
CONFIRM TFIAT 4 BLANKS AND 4 DUPS ARE^ UPS
□ FedEx
□ USPS
If Hand Carried
^ Other
Water WT
Soil SL
Solid SD
Filter FT
Other OT
LOGGED IN AND REPORTED
Rev 4.6 Webwww.intermountainlabs.comInter-Mountain Labs, Inc.
December 28, 2023 - Page 26 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
PAGE / OV 2
RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE
LOCATION/TAILS CELL ID: SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169CLIENT: ANFIELD RESOURCES HOLDING CORP
PRECIP 24 HOUR Prior AND DAY OF: yV'SAj S / T^HCCWEATHER CONDITION:MIN TEMP:
MM/DD/YY
04/23/2023
MM/DD/YY
04/24/2023
MM/DD/YY Gamma
HR/hr
2023 1^^ QUARTER SAMPLING EVENT
TAILS
LOCATION
ID/COORD
LAACC
UNIT#
CHARCOAL
CAN#
SITE FIELD
STAFF INITIALS
LAB SAMPLE COUNT
MINUTES
GROSS
COUNTS
24 HR TIME
DEPLOY/SET
24 HR TIME
RETRIEVE
24 HR TIME
START COUNT
COMMENTS
ID#
RAG/SAGAL- 24 C6isa n : 0-0
I
RAG/SAGAL-C7 //1 i7 —on//JO/
:isA C8 RAG/SAGAL-8 17n- aa.fl' I 7
RAG/SAGC9AL- 4,li' J7 nIf nn Q 3
23»AL- V CIO RAG/SAG// /7// ll o -V Z5'
AL- /^r RAG/SAGD1 tL,n-o/»
oln AAL- >5 RAG/S.AGD2K'ao -0
_RAG/SAGAL- 5 D3 //.- o V /7/J *.
RAG/SAGAL- 7 D4 //-● 03 lU
~o(oRAG/SAGAL- 5 D55 A il-IL//.■ CfX
OHRAG/SAGAL-D6n n 'Cj t
ft: / 9// /?■RAG/SAGAL-D7Z\/J- a c,lU
RAG/SAGAL- /o D8/5/7 01717/r. /8if ' os
— o^V/7 /9 RAG/SAGAL- a o D9 //: /atf t C n
—oU"RAG/SAGAL- 2 2 DIO n ● Cfj u -vs Z4.
RAG/SAGElAL-if ' O Sin it.ij: /L
AL- 25*'£217RAG/SAGEl DUP ft 1 o S./Q fr. fL fL
December 28, 2023 - Page 27 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
PAGE 2 OF Z
RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE
CLIENT: ANFIELD RESOURCES HOLDING CORP LOCATION/TAILS CELL ID: SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169
— o W
WEATHER CONDITION:PRECIP 24 HOUR Prior AND DAY OF:c . C o& L MIN TEMP:
MM/DD/YY
04/23/2023
MM/DD/YY
04/24/2023
MM/DD/YY Gamma
|iR/hr
2023 QUARTER SAMPLING EVENT
TAILS
LOCATION
ID/COORD
LAACC
UNIT#
CHARCOAL
CAN#
SITE FIELD
STAFF INITIALS
LAB SAMPLE COUNT
MINUTES
GROSS
COUNTS
24 HR TIME
DEPLOY/SET
24 HR TIME
RETRIEVE
24 HR TIME
START COUNT
COMMENTSID#
AL- 0,3 E2 RAG/SAGXM fit-It- 0 7 Km
AL¬ES RAG/SAG2<^ Atu tr-o%n ‘ K.n
—o 1,0AL-E4 RAG/SAG-0 5 /●S'35 A // -● i7
1AL¬ES RAG/SAGIT/}fh to /sK tji
E6 RAG/SAGAL-U'tt/O Jf /f “; 7
AL-CU /)E7 RAG/SAGnt}' i'i-iL//a /7
vVAL-fJ^E8 RAG/SAG/8 // ;/3 tt IB Km
AL- ^E9 RAG/SAG// ' i4 U7 ta IS
AL- 3 h —cRAG/SAGElOtt ' tS ii' n fi
~i>nB-l BLANK3/?
B-2 BLANKt*iA I?-O
B-3 BLANK
— O'JoB-4 BLANK
LD-1 CAN ID-LAB DUP-1
LD-2 CAN ID-LAB DUP-2
LD-3 CAN ID-LAB DU P-3
LD-4 CAN ID-LAB DUP-4
December 28, 2023 - Page 28 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
PACE ANALYTICAL
1673 Terra Avenue n Sheridan, WY 82801 l ph: [phone] - fax:[phone] n^ace Analytical
Radon Flux Canned Collection Media
Average weight of cans:74.4 g
Average weight of cans and Charcoai:255 g
■35List of cans shipped:1A thru 35A
3/27/2023Date shipped:
The canisters and activated charcoai 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: Nal
Count Time Date DateArea Counts
CPM CheckedCan#<100 Seconds Propped
3/23/2023 3/22/202306000.03A
3/23/2023 3/22/202306000.014A
0.0 3/23/2023 3/22/202316A0600
0.0 3/23/2023 3/22/202333A0600
Signature:
Inter-Mountain Laboratories, Inc.Page 1 of 1
December 28, 2023 - Page 29 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Anfield Resources Holding Corp.
Shootaring Canyon Mill
UT Air Quality ID 14169
Tailings Cell Grid
2023 Radon Flux Results
Data Set Summary
pCi/m^-secMinimum
pCi/m^-secMaximum
pCi/m^-sec
pCi/m^-sec
Standard Deviation
Average
Grid Key
Radon Flux result in pCi/m^-sec
NORTH
EAST
NORTH
WEST
4™-18 4™-18 4™-17 4™-164TH-25 4TH .24 4™ -23 4Th .22 4Th -21 4TH-2O J
4™-14 4™-13 4TH -12 4™-11 4TH-IO 4™ -8 4™ -8 4TH -7 4TH .6 14™-15
4TH-4 4™ -3 4TH .2 4TH-1 - 25 3RD - 24 3RD - 23 3RD. 22 3RD - 21 H4TH-5
3RD -16 3RD -15 3RD - 14 3RD -13 3RD -12 3RD - 113RD - 20 3RD - 19 3RD - 18 3RD -17 G
3RD-2 3RD - 13RD-10 3RD-9 3RD-8 3RD-7 3RD-6 3RD-5 3RD.4 3RD-3 F
2RD.16
DUP262ND-24 2ND.23 2ND.22 2ND.21 2Nd_2o 2ND_'| g 2RD-18 2RD-17 E2ND.25
2ND.14 2ND.13 2ND.12 2ND.11 2ND.10 2ND.9 2ND.8 2ND-7 2ND.02ND.15 D
1ST-25
DUP26
1ST. 22 1ST. 212ND.5 2ND.4 2ND.3 2Nd_2 2ND_i 1ST. 24 1ST. 23 C
1ST. 16 1ST. 15 1ST. 14 1ST. 121ST. 20 1ST. 19 1ST. 18 1ST. 17 1ST. 13 1ST. 11 B
lST-10 1ST. 9 1ST. 8 1ST. 7 1ST. 6 1ST-5 1ST. 2 1ST. 3 1ST-2 lST-1 A
SOUTH
WEST
SOUTH
EAST10987654321
December 28, 2023 - Page 30 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
DC#_Title: ENV-FRM-SHRT-0033 v02_Condition Upon Receipt Form Terra Lab
Effective Date: 4/24/2023
Survey Meter # Modei 2241-2; SN 182119
pH strip lot # HC210330
Thermometer SN# 221511272
Condition Upon Receipt (Attach to COO
Sample Receipt
1 Number of ice chests/packages received:
Note as "OTC "if samples are received over the counter, unpackaged
2 Temperature of cooler/samples, (if more than 8 coolers, obtain an additional CUR form.)
Temps Observed (°C): II | ||
Temps Corrected (°C):| || || ||
Acceptable is. 0.1° to 10°C for Bacteria: and 0.1° to 6°C for most other water parameters. Samples may not have had adequate time to cool
following collection. Indicate ROI (Received on Ice) for iced samples received on the same day as sampled, in addition to temperature at receipt.
ROI?Yes
I
Client contact for temperatures outside method criteria must be documented below.
3 Emission rate of samples for radiochemical analyses < 0.5mR/hr?
4 COC Number (If applicable):
5 Do the number of bottles agree with the COC?
6 Were the samples received intact? (no broken bottles, leaks, etc.)
1 Were the sample custody seals intact?
8 Is the COC properly completed, legible, and signed?
Sample Verification. Labeling & Distribution
1 Were all requested analyses understood and appropriate?
2 Did the bottle labels correspond with the COC information?
3 Samples collected in method-prescribed containers?
4 Sample Preservation:
pH at Receipt:
Total Metals
Diss Metals
Nutrient
Cyanide
SulPde
Phenol
SDWA Rads
5 VOA vials have <6mm headspace?
6 Were all analyses within holding time at the time of receipt?
7 Have rush or project due dates been checked and accepted?
8 Do samples require subcontracted analyses?
a "Yes", which type of subcontracting is required?
Sample Receipt, Verification, Login, Labeling & Distribution completed by (initials):
No N/Aei
(S>No N/A
No N/A
Yes No
No
-a'
No
No
Yes
Final pH (if added in lab):
Total Metals
Diss Metals
Nutrient
Preservative/Lot#
HNO3
Filtered and preserved in metals
H2SO4
NaOH
Date/Ti
Filtered a
Cyanide
Sulfide ZnAcet
H2SO4.
HN03_
Phenol
SDWA Rads
Yes No
No
Yes
Yes
No
General
Customer-Sp^ified
? Jiff, XO ^
CLcrCaU C^'' CfJ^X
me Added:
nd preserved in metals
Certified
Set ID:
Discrepancy Documentation (use back of sheet for notes on discrepancies}
Any items listed above with a response of "No" or do not meet specifications must be resolved.
Method of Contact:Person Contacted:Phone:
Initiated By_^
Problem:
Date/Time:Email:
Resolution:
Qualtrax ID: 70962 Pace® Analytical Services, LLC Page 1 of 1
December 28, 2023 - Page 31 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
4/28/2023Date:
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
All samples were received and analyzed within recommended holding times, except those noted below in this case narrative.
Samples were analyzed using methods outlined in the following references:
Standard Methods for the Examination of Water and Wastewater, approved method versions
EPA Test Methods for Evaluating Solid Waste, Physical/Chemical Methods, SW-846, online versions
EPA methods 40 CFR Parts 136 and 141EPA 600/2-78-054 methods
NDEP Mining Methods
40 CFR Part 50, Appendices B, J, L, O and FEM EQL-0310-189
IO Compendium Methods
Clean Water Act Methods Update Rule for the Analysis of Effluent, current version.
ASTM approved and recognized standards
ISO approved and recognized standards
USDA Handbook 60
Soil Survey Laboratory Manual Ver 4.0
ASA/SSSA 9 Methods of Analysis Part 2, 1982
ASA/SSSA Methods of Analysis Book 5 Part 3, 1996
Other industry approved methods

All Quality Control parameters met the acceptance criteria defined by EPA and Pace Analytical except as indicated in this
case narrative:
Project:SHOOTARING CMP-UT AQ ID 14169
CLIENT:Anfield Resources
Lab Order:S2304348
CASE NARRATIVE
Report ID:S2304348001
Wade Nieuwsma, Laboratory Operations Manager
Entire Report Reviewed by:
Page 1 of 2
December 28, 2023 - Page 32 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
4/28/2023Date:
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
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
S Spike Recovery outside accepted recovery limits
U Analyte below method detection limit
X Matrix Effect
Page 2 of 2
December 28, 2023 - Page 33 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169
Work Order:S2304348
Date Reported:
Sample Analysis Report
Report ID:S2304348001
Date Received:4/26/2023
COC:Sampler:
4/28/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:C6
Lab ID:S2304348-001 Collection Date:4/24/2023 11:17:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 09:160.5 pCi/m2-sec16.5 WN EPA 115Radon-222
Client Sample ID:C7
Lab ID:S2304348-002 Collection Date:4/24/2023 11:17:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 09:400.5 pCi/m2-sec23.2 WN EPA 115Radon-222
Client Sample ID:C8
Lab ID:S2304348-003 Collection Date:4/24/2023 11:17:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 09:520.5 pCi/m2-sec22.7 WN EPA 115Radon-222
Client Sample ID:C9
Lab ID:S2304348-004 Collection Date:4/24/2023 11:17:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 10:040.5 pCi/m2-sec11.9 WN EPA 115Radon-222
Client Sample ID:C10
Lab ID:S2304348-005 Collection Date:4/24/2023 11:17:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 10:150.5 pCi/m2-sec5.3 WN EPA 115Radon-222
Client Sample ID:D1
Lab ID:S2304348-006 Collection Date:4/24/2023 11:20:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 10:260.5 pCi/m2-sec21.1 WN EPA 115Radon-222
Page 1 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 34 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169
Work Order:S2304348
Date Reported:
Sample Analysis Report
Report ID:S2304348001
Date Received:4/26/2023
COC:Sampler:
4/28/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:D2
Lab ID:S2304348-007 Collection Date:4/24/2023 11:20:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 10:280.5 pCi/m2-sec15.3 WN EPA 115Radon-222
Client Sample ID:D3
Lab ID:S2304348-008 Collection Date:4/24/2023 11:20:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 10:490.5 pCi/m2-sec14.8 WN EPA 115Radon-222
Client Sample ID:D4
Lab ID:S2304348-009 Collection Date:4/24/2023 11:19:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 11:000.5 pCi/m2-sec15.7 WN EPA 115Radon-222
Client Sample ID:D5
Lab ID:S2304348-010 Collection Date:4/24/2023 11:19:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 11:120.5 pCi/m2-sec15.5 WN EPA 115Radon-222
Client Sample ID:D6
Lab ID:S2304348-011 Collection Date:4/24/2023 11:19:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 11:340.5 pCi/m2-sec12.2 WN EPA 115Radon-222
Client Sample ID:D7
Lab ID:S2304348-012 Collection Date:4/24/2023 11:19:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 11:460.5 pCi/m2-sec15.5 WN EPA 115Radon-222
Page 2 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 35 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169
Work Order:S2304348
Date Reported:
Sample Analysis Report
Report ID:S2304348001
Date Received:4/26/2023
COC:Sampler:
4/28/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:D8
Lab ID:S2304348-013 Collection Date:4/24/2023 11:18:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 11:570.5 pCi/m2-sec23.8 WN EPA 115Radon-222
Client Sample ID:D9
Lab ID:S2304348-014 Collection Date:4/24/2023 11:18:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 12:090.5 pCi/m2-sec0.7 WN EPA 115Radon-222
Client Sample ID:D10
Lab ID:S2304348-015 Collection Date:4/24/2023 11:18:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 12:200.5 pCi/m2-sec2.6 WN EPA 115Radon-222
Client Sample ID:E1
Lab ID:S2304348-016 Collection Date:4/24/2023 11:16:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 12:310.5 pCi/m2-sec12.4 WN EPA 115Radon-222
Client Sample ID:E1 DUP
Lab ID:S2304348-017 Collection Date:4/24/2023 11:16:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 12:460.5 pCi/m2-sec13.8 WN EPA 115Radon-222
Client Sample ID:E2
Lab ID:S2304348-018 Collection Date:4/24/2023 11:16:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 12:570.5 pCi/m2-sec9.2 WN EPA 115Radon-222
Page 3 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 36 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169
Work Order:S2304348
Date Reported:
Sample Analysis Report
Report ID:S2304348001
Date Received:4/26/2023
COC:Sampler:
4/28/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:E3
Lab ID:S2304348-019 Collection Date:4/24/2023 11:16:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 13:090.5 pCi/m2-sec10.6 WN EPA 115Radon-222
Client Sample ID:E4
Lab ID:S2304348-020 Collection Date:4/24/2023 11:17:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 13:200.5 pCi/m2-sec15.5 WN EPA 115Radon-222
Client Sample ID:E5
Lab ID:S2304348-021 Collection Date:4/24/2023 11:17:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 13:470.5 pCi/m2-sec13.8 WN EPA 115Radon-222
Client Sample ID:E6
Lab ID:S2304348-022 Collection Date:4/24/2023 11:17:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 13:580.5 pCi/m2-sec15.7 WN EPA 115Radon-222
Client Sample ID:E7
Lab ID:S2304348-023 Collection Date:4/24/2023 11:17:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 14:100.5 pCi/m2-sec16.1 WN EPA 115Radon-222
Client Sample ID:E8
Lab ID:S2304348-024 Collection Date:4/24/2023 11:18:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 14:220.5 pCi/m2-sec14.4 WN EPA 115Radon-222
Page 4 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 37 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169
Work Order:S2304348
Date Reported:
Sample Analysis Report
Report ID:S2304348001
Date Received:4/26/2023
COC:Sampler:
4/28/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:E9
Lab ID:S2304348-025 Collection Date:4/24/2023 11:18:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 14:330.5 pCi/m2-sec1.3 WN EPA 115Radon-222
Client Sample ID:E10
Lab ID:S2304348-026 Collection Date:4/24/2023 11:19:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 14:440.5 pCi/m2-sec4.2 WN EPA 115Radon-222
Client Sample ID:BLANK B-1
Lab ID:S2304348-027 Collection Date:
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 14:570.5 pCi/m2-secND WN EPA 115Radon-222
Client Sample ID:BLANK B-2
Lab ID:S2304348-028 Collection Date:
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 15:090.5 pCi/m2-secND WN EPA 115Radon-222
Client Sample ID:BLANK B-3
Lab ID:S2304348-029 Collection Date:
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 15:250.5 pCi/m2-secND WN EPA 115Radon-222
Client Sample ID:BLANK B-4
Lab ID:S2304348-030 Collection Date:
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
04/27/2023 15:360.5 pCi/m2-secND WN EPA 115Radon-222
Page 5 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 38 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169
CLIENT:Anfield Resources
Work Order:S2304348
ANALYTICAL QC SUMMARY REPORT
Report ID:S2304348001
4/28/2023Date:
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Radon Flux Sample Type MBLK Units:pCi
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:209895MB START (04/27/23 09:03)
Radon-222 100ND
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:209895MB END (04/27/23 16:16)
Radon-222 100ND
Radon Flux Sample Type LCS1 Units:pCi
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo: 209895RADSTD_16-1 START (04/27/23 07:48)
387 90 - 110Radon-222 108100400
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:209895RADSTD_16-1 END (04/27/23 16:26)
387 90 - 110Radon-222 103100400
Radon Flux Sample Type LCS2 Units: pCi
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:209895RADSTD_16-2 START (04/27/23 08:51)
3870 90 - 110Radon-222 97.01003800
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:209895RADSTD_16-2 END (04/27/23 16:01)
3870 90 - 110Radon-222 1041004000
Radon Flux Sample Type DUP Units:pCi/m2-sec
Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult
RunNo:209895S2304348-001ADUP (04/27/23 09:27)
16.5 101.48Radon-222 0.516.3
Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult
RunNo: 209895S2304348-010ADUP (04/27/23 11:23)
15.5 102.37Radon-222 0.515.2
Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult
RunNo:209895S2304348-020ADUP (04/27/23 13:34)
15.5 104.96Radon-222 0.516.3
Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult
RunNo: 209895S2304348-030ADUP (04/27/23 15:49)
ND 10Radon-222 0.5ND
Page 1 of 1
December 28, 2023 - Page 39 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Inter-Mountain Labs
Sheridan, WY and Gillette, WY
- CHAIN OF CUSTODY RECORD -1 1■mil ofPage
All shaded fields must be completed.#WEBINTER-MOUNTAIN LABS This is a legal document; any misrepresentation may be construed as fraud.
Client Name Project Identification
SHOOTARING CMP-UT AQ ID 14169 3RD QTR
Sampler (Signature/Attestation of Authenticity)Telephone #
307 277 3861ANFIELD RESOURCES HOLDING INC.■RJ^C,/S.A<q T^OCfB-R. § CiijAT^LINq
Report Address Contact Name ANALYSES / PARAMETERS
ON FILE SHERYL GARLING
[e-mail]
X307 277 3861Invoice Address Phone 3ON FILE -IPurchase Order#Quote #
VERBAL REMARKSzOSAMPLE
IDENTIFICATION
LAB ID
H (Lab Use Only)
Deployed Date
Retrival Date
DATEs
SAMPL
— O? o
TIME Q#of <ED Matrix Containers o;
See field notes for7/14/2023
date & time exposed,7/15/2023
LAACC location & Can ID26-LAACC Exposed Charcoal Cans SL 26 X
See Wade for required4-Blank Charcoal Cans SL X4
Method 115 REQUIRED-Unexposed cans/Do not Count,
QA Before&After STDsreturn to inventrory
7 Blank, Low & High StdLab select 4 sample dups SL 4 X
8 4 Dups requested
Count ASAPt>lPtAOT bSg' CAajS --
Q]
Utah AQSite ID14169
5ESE
7>
9
COMPLIANCE INFORMATION ADDITIONAL REMARKSSHIPPING INFO MATRIX CODES TURN AROUND TIMES
* UPS
□ FedEx
□ USPS
^ Hand Carried
* Other
Check desired service
^ Standard turnaround
Compliance Monitoring ?
Program (SDWA, NPDES,...) NESHAP
PWSID / Permit # j
Y
Chlorinated? -
Sample Disposal: Lab X Client
CONFIRM THAT 4 BLANKS AND 4 DUPS AREWater WT
Soil SL
Solid SD
Filter FT
Other OT
LOGGED IN AND REPORTED
□ RUSH - 5 Working Days
□ URGENT-< 2 Working Days
Rush & Urgent Surcharges will be applied
Rev 4.6 WebInter-Mountain Labs, Inc.vwwv.intermountainlabs.com
December 28, 2023 - Page 40 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
PAGE / OF g.
RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE
CLIENT: ANFIELD RESOURCES HOLDING CORP LOCATION/TAILS CELL ID: SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169
PRECIP 24 HOUR Prior AND DAY OF:WEATHER CONDITION: O fi'l, /VCrT,MIN TEMP:
MM/DD/YY
07/14/2023
MM/DD/YY
07/15/2023
MM/DD/YY Gamma
HR/hr
2023 3’’° QUARTER SAMPLING EVENT
TAILS
LOCATION
ID/COORD
LAACC
UNIT#
CHARCOAL
CAN#
SITE FIELD
STAFF INITIALS
LAB SAMPLE COUNT
MINUTES
GROSS
COUNTS
24 HR TIME
DEPLOY/SET
24 HR TIME
RETRIEVE
24 HR TIME
START COUNT
COMMENTS
ID#
RAG/SAGAL-5/ A FI /Q : /£■/r
HI H RAG/SAG -oo\AL- !(.F2 /o*oq- 51 /S
— (JojAL- /7 RAG/SAGF3iO ' /3T/?09:5s /5-5
RAG/SAGAL- JO F4 JO T2 /5-J-51
AL-RAG/SAGF5/o: / 0 1700
1 RAG/SAGAL-F6 (o‘, ft3/}/o' O I
RAG/SAGAL- 5 F7 lO-o\(o :oS53 ^/C.
8 RAG/SAGAL-F8 iLLP//o: £>7107 a I
AL- T RAG/SAGF9/o: ^4 /<!/0 7 03
— OjoRAG/SAGAL-FIO la> :o*jIS/S 4 /o‘o^/S.S
AL- 9 — o/iRAG/SAGG1/7r9-/cj'.oa./I
AL-RAG/SAGG2 /9-Saz <9 /a ; oT
AL- fS G3 RAG/SAG/'i 4 n/o -● p 7 /D ? /O
-<7iy/a 4AL-RAG/SAGG4 /5fO ' og (0 //
—01 s'AL-1 /S/9 RAG/SAGG5m: o3 /-o ■
-o\iAL-G6 RAG/SAGli/5 -9 /£> : /5/O ' /o /5
AL- /3 -<7|7/QtG7 RAG/SAG-Z 9/9 /o : / 2
December 28, 2023 - Page 41 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
PAGE OF ^
RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE
LOCATION/TAILS CELL ID: SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169CLIENT: ANFIELD RESOURCES HOLDING CORP
WEATHER CONDITION:PRECIP 24 HOUR Prior AND DAY OF:MIN TEMP:
MM/DD/YY
07/14/2023
MM/DD/YY
07/15/2023
MM/DD/YY Gamma
2023 3'^° QUARTER SAMPLING EVENT
HR/hr
TAILS
LOCATION
ID/COORD
LAACC
UNIT#
CHARCOAL
CAN#
SITE FIELD
STAFF INITIALS
LAB SAMPLE COUNT
MINUTES
GROSS
COUNTS
24 HR TIME
DEPLOY/SET
24 HR TIME
RETRIEVE
COMMENTS24 HR TIME
START COUNT
ID#
/S’RAG/SAGAL- U,G8 /o: Z3-/o’'. IIS
AL-RAG/SAGG940 -.JS!o ‘ /V
AL- I RAG/SAGGIO/o : /4*/t;: /C
_0'L)AL-tuRAG/SAGGIO DUP /O' IC'O' 24*
/SA RAG/SAGAL- n HI /r/cl lO :
-0^3jo: cS RAG/SAGAL-H2 /(cas A /o :
RAG/SAGAL- a A/H3 /<3 OX JO I
/0 4 RAG/SAGAL-H4 /O', o t IS
f
— 0 ^ tRAG/SAGAL- Ce>H5 / o: oSI O'. O o
—
nB-l BLANK ^nih's
B-2 BLANK
“oy/B-3 BLANK
-O'Jc.B-4 2SA BLANK
LD-1 CAN ID-LAB DU P-1
LD-2 CAN ID-LAB DUP-2
LD-3 CAN ID-LAB DU P-3
LD-4 CAN ID-LAB DUP-4
December 28, 2023 - Page 42 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
DC#_Title: ENV-FRM-SHRT-0033 v02_Condition Upon Receipt Form Terra Lab
Effective Date: 4/24/2023
Survey Meter # Model 2241-2; SN 182119
pH strip lot # HC312501
Thermometer SN# 27130475
Condition Upon Receipt (Attach to COO
Sample Receipt
1 Number of ice chests/packages received:
Note as "OTC "if samples are received over the counter, unpackaged
2 Temperature of cooler/samples, (if more than 8 coolers, obtain an additional CUR form.)
Temps Observed (°C):
Temps Corrected (°C):
Acceptable is: 0.1° to 10°C for Bacteria; and 0.1° to 6°C for most other water parameters. Samples may not have had adequate time to cool
following collection. Indicate ROI (Received on Ice) for iced samples received on the same day as sampled, in addition to temperature at receipt.
4-ROI?Yes
Client contact for temperatures outside method criteria must be documented below.
3 Emission rate of samples for radiochemical analyses < 0.5mR/hr?
4 COC Number (If applicable):
5 Do the number of bottles agree with the COC?
6 Were the samples received intact? (no broken bottles, leaks, etc.)
1 Were the sample custody seals intact?
8 Is the COC properly completed, legible, and signed?
Sample Verification. Labeling & Distribution
1 Were all requested analyses understood and appropriate?
2 Did the bottle labels correspond with the COC information?
3 Samples collected in method-prescribed containers?
4 Sample Preservation:
pH at Receipt:
Total Metals
Final pH (if added in lab):
Total Metals
Preserva
No N/Ae:
No N/A
No N/A
Yes No
No
No
No
No
Diss Metals
Nutrient
tive/Lot#
HNO3
Filtered and preserved in metals
H2SO4
NaOH
Date/Time Added:
Diss Metals
Nutrient
Cyanide
Sulfide
Phenol
SDWA Rads
5 VOA vials have <6mm headspace?
6 Were all analyses within holding time at the time of receipt?
7 Have rush or project due dates been checked and accepted?
8 Do samples require subcontracted analyses?
If "Yes", which type of subcontracting is required?
Sample Receipt, Verification, Login, Labeling & Distribution completed by (initials):
Cyanide
Sulfide
Phenol
ZnAcet
H2SO4
HNOs,SDWA Rads
Yes
Yes
Yes
General Custo
Filtered and preserved in metals
No
No
No
mer-Specified Certified
Set ID:
Discrepancy Documentation (use back of sheet for notes on discrepancies)
Any items listed above with a response of "No" or do not meet specifications must be resolved.
Phone:
Email:
Person Contacted:Method of Contact:
Initiated By Date/Time:_^
Problem:
Resolution:
Qualtrax ID: 70962 Pace® Analytical Services, LLC Page 1 of 1
December 28, 2023 - Page 43 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
PACE ANALYTICAL
1673 Terra Avenue l Sheridan, WY 82801'%ce Analytical ph: [phone] l fax: [phone] l
Radon Flux Canned Collection Media
Average weight of cans:74.4 g
Average weight of cans and Charcoal:
List of cans shipped:1A thru 35A
6/29/2023Date shipped:
The canisters and activated charcoal are baked at 110 degrees Celsius for at least 24 hours, allowed to
cool, capped and sealed. A minimum of 10 percent are randomly checked for radon before they are shipped.
Detector: Nal
Count TimeArea Counts Date Date
CheckedCan#Seconds CPM Prepped<100
6/27/2023 6/16/202306000.01A
6/27/2023 6/16/202306000.09A
6/27/2023 6/16/202336000.320A
6/27/20236000.0 6/16/202335A0
Signature:
Inter-Mountain Laboratories, Inc.Page 1 of 1
December 28, 2023 - Page 44 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Anfield Resources Holding Corp.
Shootaring Canyon Mill
UT Air Quality ID 14169
Tailings Cell Grid
2023 Radon Flux Results
Data Set Summary
pCi/m^-secMinimum
pCi/m^-secMaximum
pCi/m^-secStandard deviation
pCi/m^-secAverage
Grid Key
Radon Flux result in pCi/m^-sec
NORTH
EAST
NORTH
WEST
4™-164Th _21 4™-20 4™-18 4™-18 4™-174™-25 4™ -24 4™ -23 4TH .22 J
4TH-64TH ^4™-10 4TH-8 4™ -8 4™ -74™-15 4TH .14 4™-13 4™-12 I
3RD . 214TH-1 2^^ - 25 3«D - 24 3’’° - 23 3RD . 224TH.5 4™ -4 4™-3 4™ -2 H
3RD _ 20
DUP26 3RD . 14 3R°-13 3R°-12 3RD. 113R° -19 3R°-18 3R°-17 3R°-16 3R°-15 G
3RD. 2 3RD.13R° -8 3R°-7 3R°-6 3RD-5 3RD.4 3R°-3 F3R°-10 3R°-9
2ND-16
DUP262ND-20 2ND.19 2ND-18 2ND-172ND-25 2ND.24 2ND-23 2ND-22 2ND-21 E
2ND-11 2ND-10 2ND-9 2ND-8 2ND.7 2ND-62ND.15 2ND-14 2ND-13 2ND. 12 D
1ST-25
DUP26 1ST-24 1ST-23 1ST-22 1ST-212ND-5 2ND-4 2ND-3 2ND.2 2ND-1 c
IST-18 1ST- 17 1ST -16 1ST - 15 1ST- 14 1ST- 13 1ST-12 lST-111ST-20 1ST- 19 B
1ST-9 1ST-8 1ST-7 1ST-6 1ST-5 1ST-4 1ST-3 1ST-2 lST-1lST-10 A
SOUTH
EAST
SOUTH
WEST 3 2 110987654
December 28, 2023 - Page 45 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
7/20/2023Date:
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Samples BLANK B-1, BLANK B-2, BLANK B-3, BLANK B-4, F1, F10, F2, F3, F4, F5, F6, F7, F8, F9, G1, G10, G10 DUP,
G2, G3, G4, G5, G6, G7, G8, G9, H1, H2, H3, H4 and H5 were received on July 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 141EPA 600/2-78-054 methods
NDEP Mining Methods
40 CFR Part 50, Appendices B, J, L, O and FEM EQL-0310-189
IO Compendium Methods
Clean Water Act Methods Update Rule for the Analysis of Effluent, current version.
ASTM approved and recognized standards
ISO approved and recognized standards
USDA Handbook 60
Soil Survey Laboratory Manual Ver 4.0
ASA/SSSA 9 Methods of Analysis Part 2, 1982
ASA/SSSA Methods of Analysis Book 5 Part 3, 1996
Other industry approved methods

All Quality Control parameters met the acceptance criteria defined by EPA and Pace Analytical except as indicated in this
case narrative:
Project:SHOOTARING CMP-UT AQ ID 14169 3RD QTR
CLIENT:Anfield Resources
Lab Order:S2307218
CASE NARRATIVE
Report ID:S2307218001
Wade Nieuwsma, Laboratory Operations Manager
Entire Report Reviewed by:
Page 1 of 2
December 28, 2023 - Page 46 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
7/20/2023Date:
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Definitions
RL Reporting Limit
Qualifiers
* Value exceeds Maximum Contaminant Level
A Check MSA specifications
B Analyte detected in the associated Method Blank
C Calculated Value
D Report limit raised due to dilution
E Value above quantitation range
G Analyzed at Pace Gillette, WY laboratory
H Holding times for preparation or analysis exceeded
J Analyte detected below quantitation limits
L Analyzed by another laboratory
M Value exceeds Monthly Ave or MCL or is less than LCL
N Sample analyzed outside of compliance requirements
ND Not Detected at the Reporting Limit
O Outside the Range of Dilutions
P Sample preserved in lab at time of receipt
R RPD outside accepted recovery limits
S Spike Recovery outside accepted recovery limits
U Analyte below method detection limit
X Matrix Effect
Page 2 of 2
December 28, 2023 - Page 47 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169 3RD QTR
Work Order:S2307218
Date Reported:
Sample Analysis Report
Report ID:S2307218001
Date Received:7/17/2023
COC:Sampler:RG/SG
7/20/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:F1
Lab ID:S2307218-001 Collection Date:7/15/2023 10:15:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 09:490.5 pCi/m2-sec13.9 WN EPA 115Radon-222
Client Sample ID:F2
Lab ID:S2307218-002 Collection Date:7/15/2023 10:14:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 10:130.5 pCi/m2-sec9.0 WN EPA 115Radon-222
Client Sample ID:F3
Lab ID:S2307218-003 Collection Date:7/15/2023 10:13:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 10:240.5 pCi/m2-sec14.2 WN EPA 115Radon-222
Client Sample ID:F4
Lab ID:S2307218-004 Collection Date:7/15/2023 10:12:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 10:360.5 pCi/m2-sec19.5 WN EPA 115Radon-222
Client Sample ID:F5
Lab ID:S2307218-005 Collection Date:7/15/2023 10:10:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 10:470.5 pCi/m2-sec22.9 WN EPA 115Radon-222
Client Sample ID:F6
Lab ID:S2307218-006 Collection Date:7/15/2023 10:10:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 10:590.5 pCi/m2-sec4.5 WN EPA 115Radon-222
Page 1 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 48 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169 3RD QTR
Work Order:S2307218
Date Reported:
Sample Analysis Report
Report ID:S2307218001
Date Received:7/17/2023
COC:Sampler:RG/SG
7/20/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:F7
Lab ID:S2307218-007 Collection Date:7/15/2023 10:08:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 11:100.5 pCi/m2-sec10.1 WN EPA 115Radon-222
Client Sample ID:F8
Lab ID:S2307218-008 Collection Date:7/15/2023 10:07:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 11:220.5 pCi/m2-sec6.6 WN EPA 115Radon-222
Client Sample ID:F9
Lab ID:S2307218-009 Collection Date:7/15/2023 10:06:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 11:330.5 pCi/m2-sec3.5 WN EPA 115Radon-222
Client Sample ID:F10
Lab ID:S2307218-010 Collection Date:7/15/2023 10:05:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 11:440.5 pCi/m2-sec5.8 WN EPA 115Radon-222
Client Sample ID:G1
Lab ID:S2307218-011 Collection Date:7/15/2023 10:08:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 12:080.5 pCi/m2-sec19.0 WN EPA 115Radon-222
Client Sample ID:G2
Lab ID:S2307218-012 Collection Date:7/15/2023 10:09:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 12:200.5 pCi/m2-sec24.1 WN EPA 115Radon-222
Page 2 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 49 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169 3RD QTR
Work Order:S2307218
Date Reported:
Sample Analysis Report
Report ID:S2307218001
Date Received:7/17/2023
COC:Sampler:RG/SG
7/20/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:G3
Lab ID:S2307218-013 Collection Date:7/15/2023 10:10:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 12:330.5 pCi/m2-sec25.3 WN EPA 115Radon-222
Client Sample ID:G4
Lab ID:S2307218-014 Collection Date:7/15/2023 10:11:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 12:440.5 pCi/m2-sec22.2 WN EPA 115Radon-222
Client Sample ID:G5
Lab ID:S2307218-015 Collection Date:7/15/2023 10:12:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 12:550.5 pCi/m2-sec16.4 WN EPA 115Radon-222
Client Sample ID:G6
Lab ID:S2307218-016 Collection Date:7/15/2023 10:13:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 13:070.5 pCi/m2-sec12.6 WN EPA 115Radon-222
Client Sample ID:G7
Lab ID:S2307218-017 Collection Date:7/15/2023 10:14:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 13:180.5 pCi/m2-sec13.2 WN EPA 115Radon-222
Client Sample ID:G8
Lab ID:S2307218-018 Collection Date:7/15/2023 10:15:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 13:310.5 pCi/m2-sec7.2 WN EPA 115Radon-222
Page 3 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 50 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169 3RD QTR
Work Order:S2307218
Date Reported:
Sample Analysis Report
Report ID:S2307218001
Date Received:7/17/2023
COC:Sampler:RG/SG
7/20/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:G9
Lab ID:S2307218-019 Collection Date:7/15/2023 10:15:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 13:420.5 pCi/m2-sec12.3 WN EPA 115Radon-222
Client Sample ID:G10
Lab ID:S2307218-020 Collection Date:7/15/2023 10:16:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 13:540.5 pCi/m2-sec12.9 WN EPA 115Radon-222
Client Sample ID:G10 DUP
Lab ID:S2307218-021 Collection Date:7/15/2023 10:16:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 14:160.5 pCi/m2-sec15.9 WN EPA 115Radon-222
Client Sample ID:H1
Lab ID:S2307218-022 Collection Date:7/15/2023 10:08:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 14:280.5 pCi/m2-sec24.1 WN EPA 115Radon-222
Client Sample ID:H2
Lab ID:S2307218-023 Collection Date:7/15/2023 10:08:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 14:390.5 pCi/m2-sec17.9 WN EPA 115Radon-222
Client Sample ID:H3
Lab ID:S2307218-024 Collection Date:7/15/2023 10:07:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 14:510.5 pCi/m2-sec18.6 WN EPA 115Radon-222
Page 4 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 51 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169 3RD QTR
Work Order:S2307218
Date Reported:
Sample Analysis Report
Report ID:S2307218001
Date Received:7/17/2023
COC:Sampler:RG/SG
7/20/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:H4
Lab ID:S2307218-025 Collection Date:7/15/2023 10:06:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 15:020.5 pCi/m2-sec14.8 WN EPA 115Radon-222
Client Sample ID:H5
Lab ID:S2307218-026 Collection Date:7/15/2023 10:05:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 15:140.5 pCi/m2-sec22.5 WN EPA 115Radon-222
Client Sample ID:BLANK B-1
Lab ID:S2307218-027 Collection Date:
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 15:250.5 pCi/m2-secND WN EPA 115Radon-222
Client Sample ID:BLANK B-2
Lab ID:S2307218-028 Collection Date:
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 15:370.5 pCi/m2-secND WN EPA 115Radon-222
Client Sample ID:BLANK B-3
Lab ID:S2307218-029 Collection Date:
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 15:490.5 pCi/m2-secND WN EPA 115Radon-222
Client Sample ID:BLANK B-4
Lab ID:S2307218-030 Collection Date:
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
07/18/2023 16:010.5 pCi/m2-secND WN EPA 115Radon-222
Page 5 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 52 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169 3RD QTR
CLIENT:Anfield Resources
Work Order:S2307218
ANALYTICAL QC SUMMARY REPORT
Report ID:S2307218001
7/20/2023Date:
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Radon Flux Sample Type MBLK Units:pCi/m2-sec
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:212425MB END (07/18/23 16:39)
Radon-222 30ND
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:212425MB START (07/18/23 09:34)
Radon-222 30ND
Radon Flux Sample Type LCS1 Units:pCi/m2-sec
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo: 212425RADSTD 16-1 STRAT (07/18/23 07:01)
387 90 - 110Radon-222 98.330380
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:212425RADSTD 16-1 END (07/18/23 16:52)
387 90 - 110Radon-222 97.630380
Radon Flux Sample Type LCS2 Units: pCi/m2-sec
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:212425RADSTD 16-2 STRAT (07/18/23 09:20)
3870 90 - 110Radon-222 98.7303820
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:212425RADSTD 16-2 END (07/18/23 16:24)
3870 90 - 110Radon-222 101303910
Radon Flux Sample Type DUP Units:pCi/m2-sec
Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult
RunNo:212425S2307218-001ADUP (07/18/23 10:02)
13.9 107.98Radon-222 0.515.0
Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult
RunNo: 212425S2307218-010ADUP (07/18/23 11:57)
5.8 104.60Radon-222 0.56.1
Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult
RunNo:212425S2307218-020ADUP (07/18/23 14:05)
12.9 100.0633Radon-222 0.512.9
Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult
RunNo: 212425S2307218-030ADUP (07/18/23 16:12)
ND 10Radon-222 0.5ND
Page 1 of 1
December 28, 2023 - Page 53 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Inter-Mountain Labs
Sheridan, WY and Gillette, WY
- CHAIN OF CUSTODY RECORD -Page 1 of 1imLAll shaded fields must be completed.#WEBINTER-MOUNTAIN LABS
This is a legal document; any misrepresentation may be construed as fraud.
Client Name Project Identification Sampler (Signature/Attestation of Authenticity)Telephone #
307 277 3861RAq/SA<q § SH-eR.yU (CjARLINcqANFIELD RESOURCES HOLDING INC.SHOOTARING CMP-UT AQ ID 14169 4TH QTR
ANALYSES / PARAMETERSReport Address Contact Name
ON FILE SHERYL GARLING
[e-mail]
307 277 3861 x:Invoice Address Phone Z>
ON FILE Purchase Order#Quote #
VERBAL REMARKSO
SAMPLE
IDENTIFICATION
LAB ID
(Lab Use Only)
DATE TIME #of Q
<lU SAMPLED Matrix Containers cc
Deployed Date 11/4/2023 See field notes for
- ojo Retrival Date date & time exposed,11/5/2023
26-LAACC Exposed Charcoal Cans SL 26 X LAACC location & Can ID
4-Blank Charcoal Cans SL See Wade for required4X3A-7A
-Unexposed cans/Do not Count,Method 115 REQUIRED
i if
return to inventrory QA Before&After STDs
SL Blank, Low & High StdLab select 4 sample dups 4 X
4 Dups requested
Count ASAP
Sj
Utah AQ Site ID14169
LiE
Sheryl /9^Ml10^
SHIPPING INFO MATRIX CODES TURN AROUND TIMES COMPLIANCE INFORMATION ADDITIONAL REMARKS
Check desired service Y* UPS
□ FedEx
□ USPS
Compliance Monitoring ?
Program (SDWA, NPDES,...) NESHAP
PWSID/Permit# -
CONFIRM THAT 4 BLANKS AND 4 DUPS AREWater WT
Soil SL
Solid SD
Filter FT
Other OT
* Standard turnaround
□ RUSH - 5 Working Days
□ URGENT - < 2 Working Days
LOGGED IN AND REPORTED
51 Hand Carried
0th e^r51
ilLi'Muui
Chlorinated?
Sample Disposal: Lab XintemiaiintainlabseemRush & Urgent Surcharges will be applied Clientita Rev4.'G Web*(9t'
December 28, 2023 - Page 54 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
PAGE / OF ^
RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE
LOCATION/TAILS CELL ID: SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169CLIENT: ANFIELD RESOURCES HOLDING CORP
WEATHER CONDITION: C ^ ^ ClU.PRECIP 24 HOUR Prior AND DAY OF:MIN TEMP:
MM/DD/YY
11/04/2023
0V>r
24 HR TIME
DEPLOY/SET
MM/DD/YY
11/05/2023
(Vio>-r
24 HR TIME
RETRIEVE
MM/DD/YY Gamma2023 4^" QUARTER SAMPLING EVENT
HR/hr
COMMENTS
TAILS
LOCATION
ID/COORD
LAACC
UNIT#
CHARCOAL
CAN#
SITE FIELD
STAFF INITIALS
LAB SAMPLE COUNT
MINUTES
GROSS
COUNTS
24 HR TIME
START COUNT
ID#
V
77-rag/sagAL- 7 H6 //’QQ ✓/ i / C /V
/5 ^-<>31AL- S RAG/SAGH7//; of *j l n /3
RAG/SAGAL- !Z H8 // '● / S// 4 /Z// ■■ 0$
RAG/SAG —AL- V H96^//: / J/j -■ o4 /Z
RAG/SAGAL- 2X HIO/5t/9 //- xoJ/ ^ a (a
RAG/SAG — O 0 /AL- /3 II5*4 // :/7 /Z// : o /
RAG/SAGAL- t^/7 12 — ><;7/1 i /8(J -ox
- lb?RAG/SAGAL- 7 13 //: / ?>*2tr- f> 3
RAG/SAGAL- icJ 14 '7; 2 //S/4 // ●● 0-5^— oo /Z
RAG/SAG15AL- /X! A — olo// - 2 3jr- of.
- <>^1RAG/SAGAL- 3 1624 //: //// ● 2 6"/i
RAG/SAGAL- 8 iT /4 16-DUP //; ///2.
— 3/3RAG/SAG17AL- /J*/2// ●■ o?// - 2 2,
RAG/SAGAL- 21 18 Itn: o-JnA
AL-RAG/SAG19 !%f> ● 0.5-//,●/7
—01 Cz-' ' Xa^Pr RAG/SAGAL- 2S 110 IX
— lyryAL-RAG/SAGji 75// ●- Q O //:
December 28, 2023 - Page 55 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
PAGE SL OF Z
RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE
LOCATION/TAILS CELL ID: SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169CLIENT: ANFIELD RESOURCES HOLDING CORP
WEATHER CONDITION:PRECIP 24 HOUR Prior AND DAY OE:MIN TEMP:
MM/DD/YY
11/04/2023
rno^
24 HR TIME
DEPLOY/SET
MM/DD/YY
11/05/2023
fYvbrr
24 HR TIME
RETRIEVE
MM/DD/YY Gamma
HR/hr
2023 4^” QUARTER SAMPLING EVENT
B SAMPLEsTAILS
LOCATION
ID/COORD
LAACC
UNIT#
CHARCOAL
CAN#
SITE FIELD
STAFF INITIALS
COUNT
MINUTES
GROSS
COUNTS
24 HR TIME
START COUNT
COMMENTS
ID#
— o>4
tkRAG/SAGAL-J2 i r 0-7
29^RAG/SAGJ3AL- ,(1%: OS //: /6
AL- 25 -—- £>?.RAG/SAGJ4 IX/ / ‘* / 8W' o 3
-^0-1/AL- /7 RAG/SAGJ5H '●II// ●' / o
Hz ^— oUJ6RAG/SAGAL- /C 1112/!■ 2 &
— oij oo [RAG/SAGJ7AL- /a n :/3 n : 22 lO
//' /5*RAG/SAGAL- /4/J8 //// ●●
-ovrAL- 2(.// - 2 ^RAG/SAGJ9//-/y /2
AL- (a.JIO RAG/SAG8/5-N ; /Ct // : ao
B-1 BLANK5-^-17'3-7
7AB-2 BLANK
/o /iB-3 BLANK
B-4 BLANK
LD-1 CAN ID-LAB DUP-1
LD-2 CAN ID-LAB DUP-2
LD-3 CAN ID-LAB DU P-3
LD-4 CAN ID-LAB DUP-4
December 28, 2023 - Page 56 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Anfield Resources Holding Corp.
Shootaring Canyon Mill
UT Air Quality ID 14169
Tailings Cell Grid
2023 Radon Flux Results
Data Set Summary
pCi/m^-secMinimum
pCi/m^-sec
pCi/m^-sec
pCi/m^-sec
Maximum
Standard Deviation
Average
Grid Key
Radon Flux result in pCi/m^-sec
NORTH
WEST
NORTH
EAST
4™-25 4™ -24 4™ -23 4™ -22 4™ -21 4™-20 4™-18 4™-18 4™ -17 4™-16 J
4™-11
DUP26
4™ -14 4™-134™-15 4™-12 4™-10 4™ -8 4™-8 4™-7 4™-6 1
4TH-5 4TH _4 4™ -3 4™ -2 4TH-1 3'^° - 25 3RD. 24 3RD - 23 3RD . 22 3RD. 21 H
3RD _ 20
DUP26 3RD-19 3R° -18 3RO-17 3R° -16 3RD. 113R° -15 3RD. 14 3R0-I3 3RD. 12 G
3R°-83R°-10 3R°-9 3RD. 7 3RD-6 3R°-5 3RD .4 3R0-3 3RD. 2 3RD.1 F
2ND-16
DUP262ND-25 2Nd_24 2ND-23 2N0.22 2ND_2-|2ND-20 2ND-19 2ND-18 2ND.17 E
2ND-15 2ND.14 2ND-13 2Nd_-|2 2ND-11 2ND-10 2ND-9 2ND-8 2ND_7 2Nd_6 D
1ST-25
DUP262ND-5 2ND.4 2ND-3 2ND_2 2ND.-1 1ST. 24 1ST-23 1ST. 22 1ST.21 c
1ST-20 1ST- -19 1ST -18 1ST- 17 1ST- 16 1ST-15 1ST- 14 1ST-13 1ST-12 1ST-11 B
IST-10 1ST-9 1ST-8 1ST-7 1ST-6 1ST-5 1ST .4 1ST-3 1ST-2 1ST-1 A
SOUTH
WEST
SOUTH
EAST10987653421
December 28, 2023 - Page 57 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
PACE ANALYTICAL
1673 Terra Avenue l Sheridan, WY 82801 l ph: [phone] n fax: [phone] n*ace Analytical
Radon Flux Canned Collection Media
Average weight of cans:74.4 g
Average weight of cans and Charcoal:
List of cans shipped:1A thru 35A
Date shipped: 10/18/2023
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: Nal
DateArea Counts Count Time Date
CheckedSecondsCPM ProppedCan#<100
10/17/2023 10/5/20236000.223A
10/17/2023 10/5/20230.006007A
10/17/2023 10/5/202306000.010A
10/17/2023 10/5/20230.6660015a
Signature:T 7
Page 1 of 1Inter-Mountain Laboratories, Inc.
December 28, 2023 - Page 58 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
DC#_Title: ENV-FRM-SHRT-0033 v02_Condition Upon Receipt Form Terra Lab
Effective Date: 4/24/2023
Survey Meter # Model 12SA; SN 136491
pH strip lot # HCHC312502
Thermometer SN# 27130475
Condition Upon Receipt (Attach to COC)
Sample Receipt
1 Number of ice chests/packages received:
Note as "OTC" if samples are received over the counter, unpackaged
2 Temperature of cooler/samples, (if more than 8 coolers, obtain an additional CUR form.)
Temps Observed (°C):
Temps Corrected (°C):
Acceptable is: 0.1° to 10°C for Bacteria: and 0.1° to 6°C for most other water parameters. Samples may not have had adequate time to cool
following collection. Indicate ROI (Received on Ice) for iced samples received on the same day as sampled. In addition to temperature at receipt.
1 ROI? Yes
Client contact for temperatures outside method criteria must_be documented below.
3 Emission rate of samples for radiochemical analyses < 0.5mR/hr?
4 COC Number (If applicable):
5 Do the number of bottles agree with the COC?
6 Were the samples received intact? (no broken bottles, leaks, etc.)
7 Were the sample custody seals intact?
8 Is the COC properly completed, legible, and signed?
Sample Verification. Labeling & Distribution
1 Were all requested analyses understood and appropriate?
2 Did the bottle labels correspond with the COC information?
3 Samples collected in method-prescribed containers?
4 Sample Preservation:
pH at Receipt:
Total Metals
Diss Metals
Nutrient
Cyanide
Sulfide
Phenol
SDWA Rads
5 VOA vials have <6mm headspace?
6 Were all analyses within holding time at the time of receipt?
7 Have rush or project due dates been checked and accepted?
8 Do samples require subcontracted analyses?
If "Yes", which type of subcontracting is required?
Sample Receipt, Verification, Login, Labeling & Distribution completed by (initials):
No N/A
No N/A
No N/A
Yes No
No
No
No
No
Final pH (if added in lab):
Total Metals
Diss Metals
Preservative/Lot#
HNO3
Filtered and preserved in metals
H2SO4
NaOH
ZnAcet
H2SO4
HNO3
Date/T
Filtered a
Nutrient
Cyanide
Sulfide
Phenol
SDWA Rads
Yes No
No
Yes
Yes
No
&
General Customer-Specified
ime Added:
nd preserved in metals
Certified
Set ID:
Discrepancy Documentation (use back of sheet for notes on discrepancies)
Any items listed above with a response of "No" or do not meet specifications must be resolved.
Person Contacted:Method of Contact: Phone:
Date/Time:Initiated By_^
Problem:
Email:
Resolution:
Qualtrax ID: 70962 Pace® Analytical Services, LLC Page 1 of 1
December 28, 2023 - Page 59 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
11/9/2023Date:
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Samples BLANK B-1, BLANK B-2, BLANK B-3, BLANK B-4, H10, H6, H7, H8, H9, I1, I10, I2, I3, I4, I5, I6, I6-DUP, I7, I8, I9,
J1, J10, J2, J3, J4, J5, J6, J7, J8 and J9 were received on November 7, 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 141EPA 600/2-78-054 methods
NDEP Mining Methods
40 CFR Part 50, Appendices B, J, L, O and FEM EQL-0310-189
IO Compendium Methods
Clean Water Act Methods Update Rule for the Analysis of Effluent, current version.
ASTM approved and recognized standards
ISO approved and recognized standards
USDA Handbook 60
Soil Survey Laboratory Manual Ver 4.0
ASA/SSSA 9 Methods of Analysis Part 2, 1982
ASA/SSSA Methods of Analysis Book 5 Part 3, 1996
Other industry approved methods

All Quality Control parameters met the acceptance criteria defined by EPA and Pace Analytical except as indicated in this
case narrative:
Project:SHOOTARING CMP-UT AQ ID 14169 4TH QTR
CLIENT:Anfield Resources
Lab Order:S2311097
CASE NARRATIVE
Report ID:S2311097001
Wade Nieuwsma, Laboratory Operations Manager
Entire Report Reviewed by:
Page 1 of 2
December 28, 2023 - Page 60 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
11/9/2023Date:
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Definitions
RL Reporting Limit
Qualifiers
* Value exceeds Maximum Contaminant Level
A Check MSA specifications
B Analyte detected in the associated Method Blank
C Calculated Value
D Report limit raised due to dilution
E Value above quantitation range
G Analyzed at Pace Gillette, WY laboratory
H Holding times for preparation or analysis exceeded
J Analyte detected below quantitation limits
L Analyzed by another laboratory
M Value exceeds Monthly Ave or MCL or is less than LCL
N Sample analyzed outside of compliance requirements
ND Not Detected at the Reporting Limit
O Outside the Range of Dilutions
P Sample preserved in lab at time of receipt
R RPD outside accepted recovery limits
S Spike Recovery outside accepted recovery limits
U Analyte below method detection limit
X Matrix Effect
Page 2 of 2
December 28, 2023 - Page 61 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169 4TH QTR
Work Order:S2311097
Date Reported:
Sample Analysis Report
Report ID:S2311097001
Date Received:11/7/2023
COC:Sampler:RG/SG
11/9/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:H6
Lab ID:S2311097-001 Collection Date:11/5/2023 11:16:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 08:300.5 pCi/m2-sec8.6 WN EPA 115Radon-222
Client Sample ID:H7
Lab ID:S2311097-002 Collection Date:11/5/2023 11:17:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 08:520.5 pCi/m2-sec7.3 WN EPA 115Radon-222
Client Sample ID:H8
Lab ID:S2311097-003 Collection Date:11/5/2023 11:18:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 09:030.5 pCi/m2-sec7.4 WN EPA 115Radon-222
Client Sample ID:H9
Lab ID:S2311097-004 Collection Date:11/5/2023 11:19:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 09:140.5 pCi/m2-sec13.1 WN EPA 115Radon-222
Client Sample ID:H10
Lab ID:S2311097-005 Collection Date:11/5/2023 11:20:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 09:250.5 pCi/m2-sec1.0 WN EPA 115Radon-222
Client Sample ID:I1
Lab ID:S2311097-006 Collection Date:11/5/2023 11:17:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 09:390.5 pCi/m2-sec16.2 WN EPA 115Radon-222
Page 1 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 62 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169 4TH QTR
Work Order:S2311097
Date Reported:
Sample Analysis Report
Report ID:S2311097001
Date Received:11/7/2023
COC:Sampler:RG/SG
11/9/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:I2
Lab ID:S2311097-007 Collection Date:11/5/2023 11:18:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 09:510.5 pCi/m2-sec9.6 WN EPA 115Radon-222
Client Sample ID:I3
Lab ID:S2311097-008 Collection Date:11/5/2023 11:19:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 10:020.5 pCi/m2-sec17.2 WN EPA 115Radon-222
Client Sample ID:I4
Lab ID:S2311097-009 Collection Date:11/5/2023 11:21:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 10:130.5 pCi/m2-sec6.9 WN EPA 115Radon-222
Client Sample ID:I5
Lab ID:S2311097-010 Collection Date:11/5/2023 11:23:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 10:240.5 pCi/m2-sec7.9 WN EPA 115Radon-222
Client Sample ID:I6
Lab ID:S2311097-011 Collection Date:11/5/2023 11:25:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 10:460.5 pCi/m2-sec4.9 WN EPA 115Radon-222
Client Sample ID:I6-DUP
Lab ID:S2311097-012 Collection Date:11/5/2023 11:25:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 10:570.5 pCi/m2-sec5.4 WN EPA 115Radon-222
Page 2 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 63 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169 4TH QTR
Work Order:S2311097
Date Reported:
Sample Analysis Report
Report ID:S2311097001
Date Received:11/7/2023
COC:Sampler:RG/SG
11/9/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:I7
Lab ID:S2311097-013 Collection Date:11/5/2023 11:22:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 11:080.5 pCi/m2-sec6.1 WN EPA 115Radon-222
Client Sample ID:I8
Lab ID:S2311097-014 Collection Date:11/5/2023 11:21:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 11:190.5 pCi/m2-sec6.7 WN EPA 115Radon-222
Client Sample ID:I9
Lab ID:S2311097-015 Collection Date:11/5/2023 11:20:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 11:300.5 pCi/m2-sec19.4 WN EPA 115Radon-222
Client Sample ID:I10
Lab ID:S2311097-016 Collection Date:11/5/2023 11:20:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 11:420.5 pCi/m2-sec30.8 WN EPA 115Radon-222
Client Sample ID:J1
Lab ID:S2311097-017 Collection Date:11/5/2023 11:14:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 11:530.5 pCi/m2-sec24.1 WN EPA 115Radon-222
Client Sample ID:J2
Lab ID:S2311097-018 Collection Date:11/5/2023 11:15:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 12:040.5 pCi/m2-sec9.7 WN EPA 115Radon-222
Page 3 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 64 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169 4TH QTR
Work Order:S2311097
Date Reported:
Sample Analysis Report
Report ID:S2311097001
Date Received:11/7/2023
COC:Sampler:RG/SG
11/9/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:J3
Lab ID:S2311097-019 Collection Date:11/5/2023 11:16:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 12:150.5 pCi/m2-sec9.0 WN EPA 115Radon-222
Client Sample ID:J4
Lab ID:S2311097-020 Collection Date:11/5/2023 11:18:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 12:270.5 pCi/m2-sec3.7 WN EPA 115Radon-222
Client Sample ID:J5
Lab ID:S2311097-021 Collection Date:11/5/2023 11:19:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 12:480.5 pCi/m2-sec1.7 WN EPA 115Radon-222
Client Sample ID:J6
Lab ID:S2311097-022 Collection Date:11/5/2023 11:26:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 12:590.5 pCi/m2-sec3.3 WN EPA 115Radon-222
Client Sample ID:J7
Lab ID:S2311097-023 Collection Date:11/5/2023 11:22:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 13:100.5 pCi/m2-sec3.5 WN EPA 115Radon-222
Client Sample ID:J8
Lab ID:S2311097-024 Collection Date:11/5/2023 11:25:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 13:210.5 pCi/m2-sec7.9 WN EPA 115Radon-222
Page 4 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 65 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169 4TH QTR
Work Order:S2311097
Date Reported:
Sample Analysis Report
Report ID:S2311097001
Date Received:11/7/2023
COC:Sampler:RG/SG
11/9/2023CLIENT:Anfield Resources
3346 W. Guadalupe Rd.
Apache Junction, AZ 85210
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Client Sample ID:J9
Lab ID:S2311097-025 Collection Date:11/5/2023 11:23:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 13:330.5 pCi/m2-sec23.6 WN EPA 115Radon-222
Client Sample ID:J10
Lab ID:S2311097-026 Collection Date:11/5/2023 11:20:00 AM
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 13:440.5 pCi/m2-sec27.3 WN EPA 115Radon-222
Client Sample ID:BLANK B-1
Lab ID:S2311097-027 Collection Date:
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 13:560.5 pCi/m2-secND WN EPA 115Radon-222
Client Sample ID:BLANK B-2
Lab ID:S2311097-028 Collection Date:
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 14:070.5 pCi/m2-secND WN EPA 115Radon-222
Client Sample ID:BLANK B-3
Lab ID:S2311097-029 Collection Date:
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 14:180.5 pCi/m2-secND WN EPA 115Radon-222
Client Sample ID:BLANK B-4
Lab ID:S2311097-030 Collection Date:
Matrix:Solid
Analyses Result Qual Units Date Analyzed/InitRL Method
Radon Flux
11/08/2023 14:290.5 pCi/m2-secND WN EPA 115Radon-222
Page 5 of 5
These results apply only to the samples tested.
December 28, 2023 - Page 66 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Project:SHOOTARING CMP-UT AQ ID 14169 4TH QTR
CLIENT:Anfield Resources
Work Order:S2311097
ANALYTICAL QC SUMMARY REPORT
Report ID:S2311097001
11/9/2023Date:
Pace Analytical
1673 Terra Avenue Sheridan, WY 82801 ph: [phone]
Radon Flux Sample Type MBLK Units:pCi/m2-sec
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:215832MB START (11/08/23 08:18)
Radon-222 15ND
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:215832MB END (11/08/23 15:08)
Radon-222 15ND
Radon Flux Sample Type LCS1 Units:pCi/m2-sec
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo: 215832STD LOW START (11/08/23 06:59)
387 90 - 110Radon-222 10415401
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:215832STD LOW END (11/08/23 15:22)
387 90 - 110Radon-222 10215395
Radon Flux Sample Type LCS2 Units: pCi/m2-sec
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:215832STD HIGH START (11/08/23 08:07)
3870 90 - 110Radon-222 99.6153850
Analyte Spike Ref Samp %REC % Rec Limits QualRLResult
RunNo:215832STD HIGH END (11/08/23 14:51)
3870 90 - 110Radon-222 102153940
Radon Flux Sample Type DUP Units:pCi/m2-sec
Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult
RunNo:215832S2311097-001ADUP (11/08/23 08:41)
8.6 104.99Radon-222 0.58.2
Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult
RunNo: 215832S2311097-010ADUP (11/08/23 10:35)
7.9 101.63Radon-222 0.57.8
Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult
RunNo:215832S2311097-020ADUP (11/08/23 12:37)
3.7 101.32Radon-222 0.53.7
Analyte Ref Samp %RPD %REC % RPD Limits QualRLResult
RunNo: 215832S2311097-030ADUP (11/08/23 14:39)
ND 10Radon-222 0.5ND
Page 1 of 1
December 28, 2023 - Page 67 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
state of Utah
Department of Health and Human Services
Environmental Laboratory Certification Program
Accreditation is hereby granted to
Pace Analytical Services, LLC - Sheridan, WY
1673 Terra Avenue
Sheridan, WY 82801
Has conformed with the
2016 TNI Standard
Scope of accreditation is limited to the
State of Utah accredited fields that accompany
this Certificate
EPA Number:
Expiration Date:
Certificate Number: WY000052023-12
WY00005
3/31/2024
Kristin Brown
Program Manager
l . 7k ●i.'i r ^
n» TNI I Ji ,iti , )i-|),ii Nnc’ii . iiAHealth & HumanContinued accredited status depends on successfui ongoing participation in the program.
December 28, 2023 - Page 68 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Department of Health Human Services
TRACY S. GRUBER
Executive Director
\
'^??ijggr
NATE CHECKETTS
Deputy Director
f
\
DR. MICHELLE HOFMANN
State of Utah
SPENCER J. COX
Executive Medical Director
DAVID LITVAK
Deputy Director
Governor
DEIDRE HENDERSON
Lieutenant Governor NATE WINTERS
Deputy Director
EPA Number: WY00005
Pace Analytical Services, LLC - Sheridan, WY
Attachment to Certificate Number: WY000052023-12 Page I of 7
Start Date Expires AB
Program/Matrix: CWA (Non Potable Water)
Method ASTM D7237-10
Free cyanide
Method Eichrom method Uranium in Water
Isotopic uranium
Method EPA1664A
Hexane Extractable Material (HEM)
Method EPA 1664A (SGT-HEM)
Hexane Extractable Material - Silica Gel Treated (HEM-SGT)
Method EPA 200.2
Acid Digestion of Aqueous samples and Extracts for Total Metals
Method EPA 200.7
Aluminum
Antimony
Arsenic
Barium
Beryllium
Boron
Cadmium
Calcium
Chromium
Cobalt
Method Code: 30032930
02/25/22 03/31/24 UT
Year: 2014 Method Code: 60002768
02/25/22 03/31/24 UT
Revision: 1 Year: 1999 Method Code: 10127807
02/01/15 03/31/24 UT
Method Code: 10261606
02/01/15 03/31/24 UT
Method Code: 10263806
03/01/18 03/31/24 UT
Revision; 4.4 Year: 1994 Method Code: 10013806
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
03/13/23 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
Copper
Iron
Lead
Lithium
Magnesium
Manganese
Molybdenum
Nickel
Phosphorus, total
Potassium
Scandium
Selenium
Silver
Sodium
Strontium
195 North 1950 West, Salt Lake City, Utah 84116
telephone [phone] | fax [phone] | email: labimprovement(^utah.gov
web; htfn.s://iinhl.iitah.20v/cerfif1cation.s
December 28, 2023 - Page 69 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
EPA Number: WY00005
Pace Analytical Services, LLC - Sheridan, WY
Attachment to Certificate Number: WY000052023-12 Pagii 2 of 7
Start Date Expires AB
Program/Matrix: CWA (Non Potable Water)
Sulfur
Thallium
Thorium
02/25/22 03/31/24 UT
02/01/15 03/31/24 UT
02/25/22 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
Revision: 5 Year: 1998 Method Code: 10014003
03/01/18 03/31/24 UT
Method Code: 10014401
03/13/23 03/31/24 UT
Revision: 5.4 Year: 1994 Method Code: 10014605
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
03/13/23 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
Revision: 5.5 Year: 1998 Method Code: 10014809
02/01/15 03/31/24 UT
Revision: 3 Year: 1994 Method Code: 10036609
02/01/15 03/31/24 UT
Revision: 2.1 Year: 1993 Method Code; 10053200
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
Revision: 1 Year: 1993 Method Code: 10061402
Tin
Titanium
Vanadium
Zinc
Method EPA 200.7
Silica as Si02
Method EPA 200.8
Gallium
Method EPA 200.8
Aluminum
Antimony
Arsenic
Barium
Beryllium
Bismuth
Cadmium
Chromium
Cobalt
Copper
Lead
Manganese
Molybdenum
Nickel
Selenium
Silver
Strontium
Thallium
Tin
Uranium
Vanadium
Zinc
Method EPA 200.8
Titanium
Method EPA 245.1
Mercury
Method EPA 300.0
Nitrate plus Nitrite as N
Bromide
Chloride
Fluoride
Nitrate as N
Nitrite as N
Orthophosphate as P
Sulfate
Method EPA 335.4
195 North 1950 West, Salt Lake City, Utah 841 16
telephone [phone] | fax [phone] | email: [e-mail]
web: liftns://iinhI.Utah.ynv/certit1cations
December 28, 2023 - Page 70 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
EPA Number: WY00005
Pace Analytical Services, LLC - Sheridan, WY
Attachment to Certificate Number: WY000052023-12 Page 3 of 7
Start Date Expires AB
Program/Matrix: CWA (Non Potable Water)
Total cyanide
Method EPA 350.1
Ammonia as N
Method EPA 351.2
Kjeldahl Nitrogen (Total Kjeldahl Nitrogen-TKN)
Method EPA 353.2
Nitrate plus Nitrite as N
Nitrate as N
Nitrite as N
Method EPA 6020
Uranium Total (mass)
Method GATech Ra-226/228
Radium-226
Radium-228
Method HACH8131
Sulfide
Method OIA 1677-09
Available Cyanide
Method SM 18/19thED 7500-Ra B
Total radium
Method SM2310B-2011
Acidity, as CaC03
Method SM 2320 B-1997
Alkalinity as CaC03
Method SM 2320 B-2011
Alkalinity as CaC03
Method SM 2340 B-1997
Total hardness as CaC03
Method SM2340 B-2011
Total hardness as CaC03
Method SM2510B-2011
Conductivity
Method SM 2540 C-1997
Residue-filterable (TDS)
Method SM2540 C-2015
Residue-filterable (TDS)
Method SM2540 D-1997
Residue-nonfilterable (TSS)
Method SM 2540 D-2015
Residue-nonfilterable (TSS)
Method SM 4500-F“C-2011
Fluoride
Method SM 4500-H+B-2011
02/01/15 03/31/24 UT
Revision: 2 Year: 1993 Method Code: 10063602
02/01/15 03/31/24 UT
Revision: 2 Year: 1993 Method Code: 10065404
02/01/15 03/31/24 UT
Revision; 2 Year: 1993 Method Code: 10067604
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
02/01/15 03/31/24 UT
Year; (9/94) Method Code: 10156000
03/13/23 03/31/24 UT
Revision: 1.2 Year: 2004 Method Code: 90016005
02/25/22 03/31/24 UT
02/25/22 03/31/24 UT
Method Code: 60003783
03/13/23 03/31/24 UT
Year: 2010 Method Code: 60031450
05/24/22 03/31/24 UT
Method Code: 20033801
02/01/15 03/31/24 UT
Year: 2011 Method Code: 20044615
05/24/22 03/31/24 UT
Revision: 20th ED Year: 1997 Method Code: 20045209
02/01/15 03/31/24 UT
Year: 2011 Method Code: 20045618
02/01/22 03/31/24 UT
Year: 1997 Method Code: 20046600
02/01/22 03/31/24 UT
Year: 2011 Method Code: 20046611
02/01/15 03/31/24 UT
Year: 2011 Method Code: 20048617
02/01/15 03/31/24 UT
Revision: 20th ED Year: 1997 Method Code: 20050004
02/01/15 03/31/24 UT
Year: 2015 Method Code: 20050435
02/01/22 03/31/24 UT
Revision: 20th ED Year: 1997 Method Code: 20050800
02/01/15 03/31/24 UT
Year: 2015 Method Code: 20051223
02/01/22 03/31/24 UT
Year: 2011 Method Code: 20102414
02/01/15 03/31/24 UT
Year: 2011 Method Code: 20105220
02/01/15 03/31/24 UT
Year: 2014 Method Code: 20137831
05/24/22 03/31/24 UT
Revision: 20th ED Method Code: 20156609
pH
Method SM5310B-2014
Total organic carbon
Method SM7110B(GPC)
195 North 1950 West, Salt Lake City, Utah 841 16
telephone [phone] | fax [phone] | email; [e-mail]
web; htTns;//iinhl.i)tah.ffov/certifications
December 28, 2023 - Page 71 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
EPA Number: WY00005
Pace Analytical Services, LLC - Sheridan. WY
Attachment to Certificate Number: WY000052023-12 Page 4 of 7
Start Date Expires AB
Program/Matrix: CWA (Non Potable Water)
Gross-alpha
Gross-beta
Method SM 7500-Ra B (GPC)-2001
Total radium
02/01/15
02/01/15
Revision: 22nd ED Year: 2001
02/01/22
03/31/24 UT
03/31/24 UT
Method Code: 20170416
03/31/24 UT
195 North 1950 West, Salt Lake City. Utah 841 16
telephone [phone] | fax [phone] | email: [e-mail]
web: httns://i!nhl.Utah.ffov/cerlifications
December 28, 2023 - Page 72 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
EPA Number: WY00005
Pace Analytical Services, LLC - Sheridan, WY
Attachment to Certificate Number: WY000052023-12 Page 5 of 7
Start Date Expires AB
Program/WIatrix: RCRA (Non Potable Water)
Method EPA 053917 p. 33 EMSL LV
Thorium-230
Method EPA 1311
Toxicity Characteristic Leaching Procedure (TCLP)
Method EPA 1312 Synthetic Precipitation Leaching
Procedure
Synthetic Precipitation Leaching Procedure (SPLP)
Method EPA3020A
Acid Digestion of Aqueous samples and Extracts for Total Metals
Method EPA 6010
Phosphorus, total
Method EPA6010C
Aluminum
Antimony
Arsenic
Barium
Beryllium
Boron
Cadmium
Chromium
Method Code: 10251806
03/13/23 03/31/24 UT
Revision: 0 Year: 1992 Method Code: 10118806
02/25/22 03/31/24 UT
Revision: 0 Year: 1994 Method Code: 10119003
02/25/22 03/31/24 UT
Revision: 1 Year: 1992 Method Code: 10134404
03/01/18 03/31/24 UT
Year: (9/86) Method Code: 10155201
03/13/23 03/31/24 UT
Year: (11/00) Method Code: 10155803
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
03/01/18
02/01/15
02/01/15
02/25/22
02/01/15
02/25/22
02/01/15
02/01/15
02/01/15
02/01/15
Revision: 0 Year: 1994 Method Code: 10156204
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
03/31/24
03/31/24
03/31/24
03/31/24
03/31/24
03/31/24
03/31/24
03/31/24
UT
UT
UT
UT
UT
UT
UT
UT
Cobalt
Copper
Iron
Lead
Lithium
Manganese
Molybdenum
Nickel
Selenium
Silica as Si02
Silver
Strontium
Sulfur
Thallium
Thorium
Tin
Titanium
Vanadium
Zinc
Method EPA 6020
Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Chromium
Cobalt
195 North 1950 West, Salt Lake City, Utah 84116
telephone [phone] | fax {801) 538-4151 | email: [e-mail]
web: httns://unhI.utah.eov/certifications
December 28, 2023 - Page 73 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
EPA Number: WY00005
Pace Analytical Services, LLC - Sheridan, WY
Attachment to Certificate Number: WY000052023-12 Page 6 oP7
Start Date Expires AB
Program/Matrix: RCRA (Non Potable Water)
Lead
Manganese
Molybdenum
Nickel
Selenium
Silver
Strontium
Thallium
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
Year: (1/98) Method Code: 10156408
02/01/22
02/01/22
02/01/22
02/01/22
02/01/22
02/01/22
02/01/22
02/01/22
02/01/15
02/01/22
02/01/22
02/01/22
02/01/22
02/01/22
02/01/22
02/01/22
02/01/22
02/01/22
02/01/22
02/01/22
02/01/22
03/31/24
03/31/24
03/31/24
03/31/24
03/31/24
03/31/24
03/31/24
03/31/24
03/31/24
03/31/24
03/31/24
03/31/24
UT
UT
UT
UT
UT
UT
UT
UT
UT
UT
UT
UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
Tin
Titanium
Vanadium
Zinc
Method EPA6020A
Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Chromium
Cobalt
Copper
Lead
Manganese
Molybdenum
Nickel
Selenium
Silver
Strontium
Thallium
Revision: 1 Year: 1994 Method Code; 10165807
02/01/22 03/31/24 UT
Year: 1978 Method Code: 10289222
02/25/22 03/31/24 UT
Revision: 21st ED Method Code: 20170405
02/25/22 03/31/24 UT
Tin
Titanium
Vanadium
Zinc
Method EPA7470A
Mercury
Method EPA/600/2-78/054 Sec 3.2.2 Paste pH
pH
Method SM 7500-Ra B (GPC)
Radium-226
195 North i950 West, Salt Lake City. Utah 841 16
telephone {801) 965-2400 | fax [phone] | email: [e-mail]
weh: httns://iinhl.utah.0ov/certifications
December 28, 2023 - Page 74 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
EPA Number: WY00005
Pace Analytical Services, LLC - Sheridan, WY
Attachment to Certificate Number: WY000052023-12 Page 7 of7
Start Date Expires AB
Program/Matrix: RCRA (Solid & Hazardous Material)
Method ASTMD5744-13
Preparation/Extraction
Method ASTM E2242-13
Meteoric water mobility procedure
Method EPA 1311
Toxicity Characteristic Leaching Procedure (TCLP)
Method EPA 1312 Synthetic Precipitation Leaching
Procedure
Synthetic Precipitation Leaching Procedure (SPLP)
Method EPA3050B
Acid Digestion of Solids
Method EPA 6010
Antimony
Beryllium
Nickel
Method EPA 601OC
Arsenic
Barium
Cadmium
Chromium
Lead
Selenium
Silver
Sulfur
Thorium
Method EPA 7470
Mercury
Method EPA 7471B
Mercury
Method EPA 901.1
Gamma Emitters
Method EPA 9081
Cation exchange capacity
Method ASTM D422-63 (07)
Grain size (sieving)
Method SM 7500-Ra B (GPC)
Radium-226
Year: 2013
02/25/22
Year: 2013
02/25/22
Revision: 0 Year: 1992
02/01/15
Revision: 0 Year: 1994
Method Code: 30032281
03/31/24 UT
Method Code: 30045524
03/31/24 UT
Method Code: 10118806
03/31/24 UT
Method Code: 10119003
02/25/22
Revision: 2 Year: 1996
03/01/18
Year: (9/86)
03/13/23
03/13/23
03/13/23
Year: (11/00)
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/01/15
02/25/22
02/25/22
Year: (9/86)
02/01/15
Year: (1/98)
02/01/22
03/31/24 UT
Method Code: 10135601
03/31/24 UT
Method Code: 10155201
03/31/24 UT
03/31/24 UT
03/31/24 UT
Method Code: 10155803
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
03/31/24 UT
Method Code: 10165603
03/31/24 UT
Method Code: 10166402
03/31/24 UT
Method Code: 10308608
03/31/24 UT
Method Code: 10203404
03/31/24 UT
Method Code: 30030854
03/31/24 UT
Method Code: 20170405
03/31/24 UT
02/25/22
Revision: 0 Year: 1986
02/25/22
Year: 1963
02/25/22
Revision: 21st ED
02/25/22
The Utah Environmental Laboratory Certification Program (ELCP) encourages clients and data users to verify the most current certification letter
for the authorized method.
The analytes by method which a laboratory is authorized to perform at any given time will be those indicated in the most recent certificate letter.
The most recent certification letter supersedes all previous certification or authorization letters. It is the certified laboratory's responsibility to
review this letter for discrepancies. The certified laboratory must document any discrepancies in this letter and send notice to this bureau within 15
days of receipt. This certificate letter will be recalled in the event your laboratory's certification is revoked.
195 North 1950 West, Salt Lake City, Utah 841 16
telephone [phone] | fax [phone] | email: [e-mail]
weh: httns://unhl.iifah.gov/certificatinns
December 28, 2023 - Page 75 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
APPENDIX C
STANDARD OPERATING PROCEDURES

Balance Operation-Laboratory SOP
Radon Flux Measurement by Gamma Counting-Laboratory SOP

Radon Flux Measurement, Field Activities-Site SOP to include
EPA Method 115-Monitoring For Radon-222 Emissions
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1 of 19
DocumentInformation
DocumentNumber: Revision:
DocumentTitle:
Department(s):
DateInformation
EffectiveDate:
Notes
DocumentNotes:
All Dates and Times are listed in:
ENV-SOP-SHRT-0155 00
Support Equipment Procedure
Wet Chemistry, Rad Chem, Metals, Mining, Quality
16 Sep 2020
Central Time Zone
ENV-SOP-SHRT-0155, Rev 00
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Signature Manifest
Document Number:ENV-SOP-SHRT-0155 Revision:00
Title:Support Equipment Procedure
All dates and times are in Central Time Zone.
ENV-SOP-SHRT-0155
QM Approval
Name/Signature Title Date Meaning/Reason
Michelle LaGory (990324) Manager - Quality 16 Sep 2020, 10:05:54 AM Approved
Management Approval
Name/Signature Title Date Meaning/Reason
Michelle LaGory (990324) Manager - Quality 16 Sep 2020, 10:06:22 AM Approved
2 of 19
ENV-SOP-SHRT-0155, Rev 00
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3 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
1.0 PURPOSE
This standard operating procedure (SOP)describes the procedure used for maintaining adequate
calibration and operational status of various support equipment throughout the laboratory.
2.0 SCOPE AND APPLICATION
The policies and procedures set forth in this document are applicable to all personnel who maintain
and calibrate any support equipment noted herein.
3.0 SUMMARY
Support equipment listed in this SOP must be calibrated prior to use. Although calibration
procedures may vary depending on the equipment, all calibration records must be documented and
archived properly.
Each piece of support equipment must be labeled, when applicable, with calibration information (e.g.,
calibration date, initials of person calibrating the equipment, correction factors, if applicable, etc.) and
unique numbers indicative of the support equipment must be documented where applicable within
the preparation and analysis records.
4.0 DEFINITIONS
Refer to the Laboratory Quality Manual for a glossary of common lab terms and definitions.
Class A Glassware: volumetric glassware that provides the highest level of accuracy. It complies
with the Class A tolerances defined in ASTM E694. It is labeled as Class A and usually comes with a
certificate of precision. All Class A volumetric glassware is actually glass; volumetric plasticware is
not eligible for Class A status.
Reference (with regards to support equipment): equipment which is directly calibrated against a
NIST-traceable material.
Working (with regards to support equipment): equipment which is calibrated against reference
equipment and is used in lab operations.
5.0 HEALTH AND SAFETY
Common sense safety practices must be adhered to at all times. It is necessary for proper personal
protective equipment to be used around all chemicals and equipment, especially safety glasses, lab
coats and gloves.
6.0 PROCEDURE
6.1 General Information
Documentation:For equipment requiring daily monitoring, calibration verification and or
maintenance, all records must be kept in a controlled logbook or database and should be in the
ENV-SOP-SHRT-0155, Rev 00
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4 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
general area of the equipment. For those pieces of equipment which undergo monitoring,
calibration verifications and/or maintenance on a monthly, quarterly or annual (or other
frequency) basis, the records may be filed and stored in the Quality department. All records must
be organized and available for review by external auditors.
Traceability:For equipment requiring calibration and calibration verification, all reference
materials must be traceable to NIST reference materials (e.g., calibrated weights and
thermometers). All volumetric verification measurements must be traceable to Class A apparatus
(e.g., volumetric flasks).
Service Status: If equipment is found to be out of the required specification determined for use,
it must be removed from service. If it cannot be physically removed to prevent usage, it must be
distinctly marked with an “Out of Service” label. When equipment is taken out of service and
then returned, records must be made in the associated logbook to identify the out of service
period. This is to account for any gaps in the documentation of concerning monitoring,
calibration verification and or maintenance.
6.2 Thermometers
The lab must maintain a National Institute of Standards and Technologies (NIST) traceable
reference thermometer within the laboratory for verifying the accuracy of all other thermometers
used in the lab. This reference thermometer must be verified within the timeframe indicated by
the prov ider of the thermometer calibration service (not to exceed 5 years; unless other
regulatory requirements exist), with corresponding traceability information that is reviewed and
maintained in the Quality office. The calibration of this reference thermometer must be traceable
to a NIST standard reference thermometer. The reference thermometer must be calibrated over
a range that encompasses the temperature ranges of all subsequent thermometers that are
calibrated against it. The EPA drinking water manual requires NIST traceable reference
thermometers to be rechecked at least every five years and whenever they are exposed to high
temperatures.
All thermometers must be uniquely identified and tracked by the local Quality office. The local
Quality office must maintain an inventory list of thermometers that contains the unique
identification, location, type (if necessary), range of use (if applicable) and calibration information
of each thermometer in the lab.
All working thermometers must undergo a documented calibration verification process on an
annual basis (although some contractual requirements may require quarterly calibration
verifications for digital and dial-type thermometers). This verification is performed against the
NIST-traceable reference thermometer. Once verified, a correction factor must be designated
even if no actual temperature correction is required (e.g., 0.0°C). This verification may be
performed by an outside service or by the laboratory.
6.2.1 Recording Temperature Readings:Correction factors must be taken into account
whenever temperature measurements are made. It is a good lab practice to record both
the observed AND corrected (or “true”) temperatures when making measurements. This
ensures no ambiguity in determining whether or not the factor was taken into account at
the time the temperature was recorded.
6.2.1.1 A correction factor of “0°” indicates that no bias exists in the working
thermometer. Record daily temperatures as observed.
ENV-SOP-SHRT-0155, Rev 00
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5 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
6.2.1.2 A correction factor of “- X” indicates that X degree(s) must be subtracted from the
working thermometer reading when recording temperatures from this thermometer.
6.2.1.3 A correction factor of “+X” indicates that X degree(s) must be added to the
working thermometer reading when recording temperatures from this thermometer.
6.2.2 General Thermometer Use
6.2.2.1 Look at thermometer and determine where the level of the mercury or other fluid
is in relationship to the markings on the outside. The observed working thermometer
reading must be recorded to the nearest graduation of the working thermometer (e.g.,
0.5°C). Do not estimate the reading between the graduations. For digital thermometers,
the temperature is the observed temperature (with correction factor taken into account).
6.2.2.2 Review corresponding tag and apply the Correction Factor.
6.2.2.3 Record reading in the appropriate logbook for that piece of equipment.
6.2.3 Calibration Verification Procedures
6.2.3.1 The lab has the option of re-calibrating existing thermometers or replacing them
with new thermometers with calibration certificates from outside agencies.
6.2.3.2 Refrigerator/Ice Point Thermometer Calibration Method: This method is utilized
for the calibration of all refrigerator and cooler temperatures by immersing both the
reference and working thermometers in an ice bath and bringing to equilibrium (0oC).
Once equilibrium is achiev ed, 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 av erages in the
appropriate section of the form. Be sure all sections of this form are completed
properly.
ENV-SOP-SHRT-0155, Rev 00
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6 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
If the av erage reading for the working thermometer has a correction factor
greater than ± 1.0°C the working thermometer must be returned to the Quality
office. If the working thermometer is to be used for non-analytical applications
(e.g., monitoring a glassware drying oven) where temperatures are monitored but
not necessarily recorded for quality purposes, the working thermometer may
have a correction factor of up to ± 3.0°C.It should be noted that alcohol working
thermometers may not pass the acceptance criteria listed above. The lab may
have to find an alternative device (e.g., digital thermometer, pre-certified
thermometer) to pass criteria.
Create a unique label to document the thermometer number, date of calibration,
date the next calibration is due, and the initials of the analyst who calibrated the
working thermometer and the proper correction factor. Affix this label to the
working thermometer.
Thermometers calibrated at oven temperatures must only be used to determine
temperatures at or near the oven calibration temperature. A thermometer
calibrated at oven temperature is not considered calibrated for use at ice point
temperatures.
6.2.3.4 Infrared Thermometer Verification: The IR temperature guns used for sample
temperature measurement must be verified against a NIST traceable thermometer in the
same general manner as any other liquid filled thermometer. This verification must be
performed on a quarterly basis and done within the general range of temperatures
routinely measured (e.g., 0° –> 6°C for samples). For labs performing drinking water
compliance samples, IR guns must hav e a daily check performed against a non-IR
thermometer. Drinking Water Manual requires that the comparison be < 0.5°C between
these two thermometers. The Drinking Water Manual also requires that the lab verify
each IR gun every 6 months bracketing the range of use.
To verify the accuracy of the IR gun at a sub-ambient temperature, place a
temperature blank or 1L container filled with DI water in the sample walk-in
refrigerator (or other sub-ambient condition) and allow it to reach equilibration
temperature (i.e., overnight). Equilibration can be determined by direct measure
of the liquid contained inside using a NIST traceable thermometer. The container
must be large enough with sufficient heat capacity to prev ent a rapid change in
temperature once removed from the climate controlled environment. The
container must also have a sample label fixed to the side in the same manner as
any sample.
Once equilibrated, remove the container from refrigerated conditions and into the
ambient room. Leave the NIST thermometer in the liquid to monitor the
temperature of the contained liquid. Since samples are measured at ambient
temperatures, it is important that the verification be done on materials cooled to
0°-> 6°C but immediately measured in the open room like any other sample.
Note: Infrared thermometers can be affected by significant temperature changes
in the surrounding environment. Therefore, the IR temperature gun must be in
temperature equilibrium with the surrounding environment prior to performing the
verification (or taking temperature readings).
ENV-SOP-SHRT-0155, Rev 00
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7 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
Immediately take a measurement of the container surface temperature by
focusing the IR sighting on the container label. Hold the trigger down until the
reading stabilizes keeping the thermometer focused on the same spot. The
reading must be taken immediately after removal from the refrigerated conditions
since the container surface will heat up quickly relative to the contents of the
bottle. The readings for an IR thermometer are dependent on the emissivity of
the surface being measured. The IR guns must be calibrated for each surface
that may be measured (e.g., container label, plastic container, etc.) or if the IR
gun is preferentially calibrated to measure only on the labels, then the
measurements must always be taken on the sample label.
Compute a correction factor based on the observed reading and that of the
thermometer used to measure the liquid directly. The computation must include
any corrections applied to the NIST thermometer itself based on the most recent
calibration.
6.3 Weights
6.3.1 Reference weights must be recertified by an approved external vendor every 5 years at a
minimum (unless a customer or regulatory requirement supersedes this with a shorter
time period). The certifying vendor must provide the laboratory with a copy of a Certificate
of Calibration (or equivalent). All reference materials used by the vendor for the
recertification must be traceable to NIST (or comparable National Metrology Institute)
reference materials. See Attachment II for a listing of the typical applications of each
weight class.
6.3.2 All weights must be kept clean, dry and in as pristine condition as possible. Individual
weights used in the lab are to be handled using forceps or by some other means (i.e.,
Kimwipe) to prevent contamination from dirt, moisture or fingerprints.
6.3.3 Working weight sets in the lab are to be uniquely identified or numbered and controlled
by the Quality office. The initial or current Certificate of Calibration and documentation
showing v erification of accuracy of the weights used in the lab must be maintained by the
Quality office.
6.3.4 If a weight comes back from the metrology vendor as a lower class weight than needed,
this weight needs to be replaced or brought back into specifications by the metrology
vendor, if possible.
6.4 Balances
6.4.1 Balances shall be maintained in proper working order. Each balance and its surrounding
area must be clean and free of dirt, chemicals and other substances. All laboratory
personnel must be responsible for area cleanup following usage of a balance.
6.4.2 Balances are to be positioned on a solid surface, free from vibrations. The surface must
be as level as possible with any remaining leveling accomplished via the balance’s own
leveling system. Balances must be level prior to calibration verification and use. Balances
should also be positioned to minimize or av oid excessive air flow which may affect the
ability to produce a stable reading.
6.4.3 Records of all repair and maintenance activities, including service calls, shall be retained.
ENV-SOP-SHRT-0155, Rev 00
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8 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
6.4.4 Annual Calibration Verification
All balances shall be calibrated annually by a qualified serv ice technician using NIST
traceable references over the entire range of use.
Calibration or verification results shall be reviewed by a member of the Quality office and
must be within specifications as noted on the Certificate provided by the vendor.
Otherwise, the balance shall be removed from service until repaired and labeled ‘Not in
Service’ or other such reference to ensure it is not used by laboratory staff.
6.4.5 Daily Calibration Verification: Balances shall be checked prior to use on each working
day with a NIST traceable reference in the expected range of use. Balances must be
verified with weights of a class appropriate for the accuracy of the balance being
calibrated (see Attachment II). When outside the limits shown in Attachment III, corrective
action must be taken as described below. These limits must be listed in the balance
calibration logbook.
6.4.5.1 Procedure for daily calibration verification of balances:
Clean the balance and surrounding area prior to starting the daily calibration
check.
Check the sight level on the balance. If it needs adjusting, level the balance.
Tare the balance before weighing the working weights.
Use forceps or other means to lift each working weight. Do not touch the working
weights with fingertips as the residue may artificially adjust the true value of the
working weights. It is recommended to use some sort of weighing boat to avoid
scratching the working weights on the balance pan.
Record the date of the calibration verification, the working weight set
identification number, the true value of the working weight, and the actual
measured weight in the logbook. Repeat this procedure for the other working
weights. If calibration weight measurements differ from the working weight
measurements by more than specified in the balance calibration logbook,
corrective action must be taken. See Attachment I for the maximum tolerances
allowed (ASTM Class 1 or NBS Class S, for example).
6.4.5.2 Corrective Actions:
Clean the balance and balance pan. Check the sight level on the balance and
adjust if necessary. Re-tare and reweigh all the working weights.
The internal calibration function (if available) of the balance may be used as a
means of corrective action. Utilize the internal calibration function and
diagnostics.
If the above action does not correct the problem, the balance must be taken out
of service and appropriately labeled to avoid improper usage. A serv ice
technician should be contacted if the balance cannot be repaired internally.
Record any corrective action. Initial and date all entries in the logbook.
ENV-SOP-SHRT-0155, Rev 00
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9 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
6.5 Refrigerators, Freezers, Incubators, Ovens, Baths, Digestion Blocks
6.5.1 All temperature controlled storage devices used to store samples, standards, and
reagents or any other temperature controlled device used in the analytical process must
be managed according to the procedures outlined in this SOP. Such devices must be
kept in good working order, free from dirt, chemicals or other sources of contamination.
Electrical cords must not be frayed; all must incorporate a dedicated ground plug (three-
prong). Three prong grounded plugs must be kept intact; the ground plug cannot be
removed to accommodate a two-prong electrical socket.
6.5.2 Any temperature controlled device meeting the above criteria must be labeled and a
temperature monitoring logbook or database established. Temperatures must be
monitored and documented on each day of use using a calibrated thermometer controlled
by the Quality office. Heat distribution in digestion blocks is monitored by rotating position
of thermometer in individual wells and recording measured temperatures and well
position with each use. For Micro tests, incubator temperatures must be taken and
documented twice daily at least 4 hours apart. Temperature corrections must be applied
and the corrected temperature evaluated against the acceptance range for the unit. If out
of range, corrective action must be taken and documented.
6.6 Volumetric Dispensing Devices
6.6.1 Class A Volumetric Pipettes and Microliter Syringes
6.6.1.1 Class A volumetric pipettes require no calibration verification provided they are
marked as “Class A”. If a pipette is accompanied by a certificate of traceability (or
similarly named document) that links the accuracy of the pipette to an NIST traceable
source, the certificate should be retained for reference.
6.6.1.2 Customer specific requirements may dictate that an initial or periodic verification
is performed regardless of whether the device is “Class A” or a certificate of traceability is
available. If required to do so, use the following procedure to verify the calibration:
Using a properly calibrated balance, tare the weight of a small tray or weigh boat.
Using a pipette bulb, pump or other controller, draw room temperature deionized
water into the pipette to the mark and dispense on the tray.
Record the weight and units. Repeat this procedure four more times using
separate disposable pipettes.
Using a calibrated thermometer, take the temperature of the de-ionized water
used for calibration and document it. Look up the correction factor (e.g.,
Attachment IV) and document it.
Calculate the average weight dispensed from the pipette.
In order to be verified as Class A, the calibration must meet the
specifications listed in Attachment III.
6.6.1.3 Glass microliter syringes for environmental use (with the exception of
autosampler syringes) shall be deemed acceptable for use if they have accuracy and
precision within ±2.0 and ±2.5%, respectively. They must be calibrated upon initial
ENV-SOP-SHRT-0155, Rev 00
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10 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
receipt following the procedure outlined for fixed volume pipettes. If the syringe comes
with a certificate attesting to established accuracy, the initial verification is not required
unless specified otherwise by customer specific requirements. All documentation is
stored in the Quality office.
6.6.1.4 If the syringe fails to meet acceptance criteria, repeat the verification steps. If the
syringe fails to meet criteria a second time, remove it from service. The defective syringe
should be discarded but may be repaired.
6.6.2 Bottle Top Dispensers: Repeating Bottle Top Dispensers used to deliver a variety of
volumes must be verified for accuracy on a quarterly basis at a minimum. Those
dispensers that are at a fixed volume and never adjusted need only be calibrated initially
unless accompanied by documentation from the vendor certifying accuracy against an
NIST traceable reference. To ensure the greatest accuracy in measurement, calibrate by
weight and use the density of the liquid that is being used for calibration. Always calibrate
with the solv ent/liquid to be used in the dispenser. Do not assume that a dispenser
calibrated using one solution will be accurate for another. This is particularly true for
dispensers that use air displacement in the mechanism where there is no direct contact
between plunger and liquid.
6.6.2.1 Calibration Procedure:
Remove the dispenser and fill the bottle with the desired liquid, then reattach the
dispenser. Set the dispenser for desired volume and prime.
To prime the dispenser, first press the plunger with equal force to the stop at the
bottom of the stroke. Expel the air bubbles from the pump by short, rapid strokes.
Bubbles will be visible through the dispensing tip holder window. The tip should
be free of bubbles. Howev er, tiny bubbles may be ignored and should not affect
the operation.
Place an appropriately sized beaker on a calibrated analytical balance and tare
the balance once (as additional aliquots are added below, the spreadsheet will
be able to subtract the values to determine the weight).
Dispense the desired aliquot of liquid into the beaker and place back on the
balance.
Record the weight.
Collect four additional aliquots until there are five data points recorded.
Calculate the average weight and the standard deviation and record.
Take the temperature of the liquid in the beaker used during calibration and
record the temperature on the worksheet. If calibration is being performed with a
pure liquid, look up the density/temperature correlation in “The Handbook of
Chemistry and Physics” or an equally reputable reference.
If the density of the liquid is unknown, use the following approach to determine
the density.
ENV-SOP-SHRT-0155, Rev 00
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11 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
Using the appropriately sized Class A volumetric pipette, draw up the respective
aliquot of liquid to the mark on the pipette.
Dispense into the tared container on the balance. Record the mass.
Calculate the density. Calculate the expected mass (wt.) using the indicated
density. Record the value in the appropriate logbook.
The precision and accuracy must not exceed !!2%. Repeat calibration steps if
it still does not meet criteria. If it fails a second time, label as “out of service” and
inform the SQM/QM. Record all data.
6.6.3 Mechanical Pipettes (adjustable and single volume): Each pipette or di spenser used for
analytical measurements must be calibrated quarterly, prior to use. The macro-set
(adjustable) pipettes are to be calibrated at three settings: the maximum volume, 50% of
the maximum volume, and the smallest adjustable volume, which should not be less than
10% of the nominal volume. The calibration may be documented in a logbook or
spreadsheet.
6.6.3.1 Calibration Procedure:
Using a properly calibrated balance, tare the weight of a small tray (or equivalent
device).
Using the pipette, draw up a portion of room temperature distilled water and
dispense it into the tared tray.
Record the weight and units in the logbook or spreadsheet.
Repeat this procedure four more times using the same tray and retaining each
aliquot and record each weight for a total of five weights.
Using a calibrated thermometer, take the temperature of the deionized water
used for calibration and document it on the spreadsheet. Look up the
corresponding temperature correction factor (refer to Attachment IV) and enter it
into the documentation.
Calculate the average weight dispensed from the pipette assuming 1mL of
deionized water = 1.000g.
In the absence of manufacturer specified performance criteria, the accuracy and
precision must not exceed: ± 2% at the maximum volume; ± 2% at half the
maximum volume; ± 2% at the minimum volume.
If the pipette fails to meet these criteria, double check the tip for fit and
recalibrate. Replace the tip if it fails once again.
If the calibration still fails, label it as ‘out of service’ and turn the unit over to the
Quality office for repair or replacement.
Each pipette must be clearly labeled with the ID, date calibrated, next calibration
due date, and who calibrated.
ENV-SOP-SHRT-0155, Rev 00
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12 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
Create a label that identifies the pipette or syringe, analyst initials, and calibration
date. Secure this label firmly to the pipette or syringe.
6.6.4 Pipette Use (e.g., Eppendorf, or similar air displacement device)
6.6.4.1 Plunger Stop Positions: There are three positions within the travel range of the
plunger:
First Stop: Used to determine the volume of liquid to be aspirated into the
device;
Second Stop: Used as the “blow out” stop point to ensure that all aspirated liquid
is dispensed from the device;
Third Stop: Used to ej ect the pipette tip once all measurements hav e been
made.
6.6.4.2 Setting Volume
Press the gray locking button (if av ailable) found on the side of the device near
the top and hold down.
Set the volume by turning the control button. This should turn freely. If difficult to
turn, consult the department supervisor as repairs may be needed.
Release the locking button. The set volume is now secured against inadvertent
adjustment.
6.6.4.3 Filling
Attach the pipette tip securely.
Press the control button down to the first stop (measuring stroke) and hold.
Hold the pipette vertical and immerse the tip just below the surface of the liquid.
Let the control button glide back SLOWLY and smoothly.
If the control button is released too rapidly, the liquid will ‘jump-up’ into the barrel
of the pipette. This can lead to contamination and / or corrosion of the plunger
barrel and to inaccurate measurements.
6.6.4.4 Dispensing
Hold the tip at an angle against the inside wall of the vessel.
Press the control button slowly down to the first stop (measuring stroke) and wait
approx. 1-3 seconds.
Press the control button down to the second stop (blow-out) to empty the tip
completely. Repeated “blow outs”are not necessary. If this is required to eject all
liquid, the pipette is either broken and in need of service or it is an inappropriate
device for the solution measured.
Continue to hold the control button down.
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13 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
Slide the tip out along the inside of the wall of the vessel.
Let the control button glide back to the top of the stroke.
Eject the tip by pressing the control button to the final stop.
Never lay a pipette down with a tip on and liquid in the tip.
6.7 Non-volumetric Labware
6.7.1 Any non-volumetric labware (such as digestion tubes, digestion cups, serological pipets,
autosampler vials) must be verified per lot number when the labware is used to measure
either the initial sample volume or the final volume of the extract/digestate. A minimum of
5 specimens of each piece of labware must be used in the verification process. The
accuracy and precision must not exceed 3% to be considered appropriate for use. The
results of these verifications must be documented. This process does not need to be
performed if the lab receives a certificate, per lot, stating accuracy and precision values
that are equal to or better than the 3% listed above.
6.7.2 Plastic graduated cylinders must be verified in the same manner stated above (with a
maximum 3% accuracy and precision required), but these verifications must only be done
once prior to putting the cylinders in use. The results of these verifications must also be
documented.
6.8 Data Analysis and Calculations:
6.8.1 Calculating correction factor- option 1:
6.8.1.1 Measure temperature three times using the working thermometer being verified
and the certified thermometer being verified against. Average the three thermometer
readings for both thermometers and apply the difference as the correction factor.
6.8.1.2 For example, certified thermometer readings (in degrees Celsius) of 2.9, 3.2, and
3.2 would produce an av erage temperature of 3.1°C. Working thermometer readings (in
degrees Celsius) of 3.7, 4.0, and 4.0 would produce an average temperature of 3.9°C.
The correction factor would therefore be -0.8°C.
6.8.2 Calculating correction factor- option 2:
6.8.2.1 Measure temperature at three different temperatures once using the working
thermometer being verified. Average the three differences and apply this average as the
final correction factor.
6.8.2.2 For example, certified thermometer readings (in degrees Celsius) of 0.1, 4.3, and
9.7 and working thermometer readings (in degrees Celsius) of 0.0, 4.5, and 10.1 would
produce differences of +0.1, -0.2, and -0.4, respectively. The average of the three
differences, and therefore the applied correction factor, would be -0.2°C.
7.0 RESPONSIBILITIES
Pace ENV employees that perform any part this procedure in their work activities must have a signed
Read and Acknowledgement Statement in their training file for this version of the SOP. The
ENV-SOP-SHRT-0155, Rev 00
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14 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
employee is responsible for following the procedures in this SOP and handling temporary departures
from this SOP in accordance with Pace’s policy for temporary departure.
Pace superv isors/managers are responsible for training employees on the procedures in this SOP
and monitoring the implementation of this SOP in their work area.
8.0 ATTACHMENTS
Attachment I: Weight Class Tolerances
Attachment II: Weight Class Applications
Attachment III: Tolerance Limits
Attachment IV: Water Density Correction Factors
Attachment V: Adjustable Pipette Troubleshooting Guide
9.0 REFERENCES
Pace Quality Assurance Manual- most current version
National Institute of Standards and Technology website
“Handbook of Environmental Analysis – 4th Edition”, Roy-Keith Smith, PhD, Genium Publishing
Corp., 1999
10.0 REVISION HISTORY
This Version:
Section Description of Change
All New laboratory procedure, consolidating several lab SOPs for support equipment into
one.
This document supersedes the following document(s):
Document Number Title Version
ENV-SOP-SHRT-001 Balance Calibration Procedure 00
ENV-SOP-SHRT-027 Pipette Delivery Check Procedure 00
ENV-SOP-SHRT-084 Thermometers and Monitoring Procedure 00
ENV-SOP-SHRT-0155, Rev 00
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15 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
Attachment I: Weight Class Tolerances
Metric
Weight
ASTM Class NIST
Class
NBS
Class
All tolerances listed in mg
0 1 2 3 4 5 6 7 F S*
1kg 1.3 2.5 5.0 10 20 50 100 470 100 2.5
500g 0.60 1.2 2.5 5.0 10 30 50 300 70 1.2
300g 0.38 0.75 1.5 3.0 6.0 20 30 210 60 0.75
200g 0.25 0.50 1.0 2.0 4.0 15 20 160 40 0.50
100g 0.13 0.25 0.50 1.0 2.0 9 10 100 20 0.25
50g 0.060 0.12 0.25 0.60 1.2 5.6 7 - 10 0.12
30g 0.037 0.074 0.15 0.45 0.90 4.0 5 44 6.0 -
20g 0.037 0.074 0.10 0.35 0.70 3.0 3 33 4.0 0.074
10g 0.025 0.050 0.074 0.25 0.50 2.0 2 21 2.0 0.074
5g 0.017 0.034 0.054 0.18 0.36 1.3 2 13 1.5 0.054
3g 0.017 0.034 0.054 0.15 0.30 0.95 2 9.4 1.28 0.054
2g 0.017 0.034 0.054 0.13 0.26 0.75 2 7.0 1.12 0.054
1g 0.017 0.034 0.054 0.10 0.20 0.50 2 4.5 0.90 0.054
500mg 0.005 0.010 0.025 0.080 0.16 0.38 1 3.0 0.72 0.025
300mg 0.005 0.010 0.025 0.070 0.14 0.30 1 2.2 0.61 0.025
200mg 0.005 0.010 0.025 0.060 0.12 0.26 1 1.8 0.54 0.025
100mg 0.005 0.010 0.025 0.050 0.10 0.20 1 1.2 0.43 0.025
50mg 0.005 0.010 0.014 0.042 0.085 0.16 0.5 0.88 0.35 0.014
30mg 0.005 0.010 0.014 0.038 0.075 0.14 0.5 0.68 0.29 0.014
20mg 0.005 0.010 0.014 0.035 0.070 0.12 0.5 0.56 0.26 0.014
10mg 0.005 0.010 0.014 0.030 0.060 0.10 0.5 0.4 0.21 0.014
5mg 0.005 0.010 0.014 0.028 0.055 0.080 0.2 -0.17 0.014
3mg 0.005 0.010 0.014 0.026 0.052 0.070 0.2 -0.14 0.014
2mg 0.005 0.010 0.014 0.025 0.050 0.060 0.2 -0.12 0.014
1mg 0.005 0.010 0.014 0.025 0.050 0.050 0.1 -0.10 0.014
* - NBS CLASS S SUPERSEDED BY ASTM E617-97;SEE NOTE IN SECTION 11.3.1. VALUES PROVIDED FOR REFERENCE
PURPOSES.
ENV-SOP-SHRT-0155, Rev 00
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16 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
Attachment II: Weight Class Applications
OIML IR
consolidation,
1994
ASTM
E 617-
1997
NBS Circ.
547,
1954
superseded
1978
NIST
105-1,
1990 Typical Use
Extra-fine accuracy.
E1 primary laboratory reference standards
E2 0 high precision standards for calibration
of weights and special precision
analytical balances, accuracy classes I
and II (class II, depending on precision)
1M, S
Fine accuracy.
F1 2
high accuracy class II balances
3 S-1 working standards for precision and
analytical work, built-in weights, external
weights used to calibrate moderate
precision balances
F2
Medium accuracy.
4P
accuracy class III, industrial scales, dial
scales, trip balances, platform scales
also used for accuracy class III L and IIII
M1 5 Q
M2 6 T F
M3 7
Source: National Institute of Standards and Technologies
(http://ts.nist.gov/WeightsAndMeasures/caqmass.cfm)
ENV-SOP-SHRT-0155, Rev 00
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17 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
Attachment III: Tolerance Limits
BALANCE TOLERANCE LIMITS
Balance Accuracy (± g)
Weight 0.0001g 0.001g 0.01g 0.1g
1000g N/A N/A 10g 10g
500g N/A N/A 5g 5g
100g 1.0g 1g 1g 1g
50g 0.50g 0.5g 0.5g 0.5g
10g 0.10g 0.10g 0.1g 0.1g
1g 0.010g 0.01g 0.01g N/A
0.5g 0.005g 0.005g N/A N/A
0.1g 0.001g 0.001g N/A N/A
0.05g 0.0005g N/A N/A N/A
0.01g 0.0001g N/A N/A N/A
CLASS AGLASSWARE TOLERANCE LIMITS
CAPACITY (M L) BURET
GRADUATED
CYLINDER
VOLUMETRIC
FLASK
VOLUMETRIC
PIPET
0.5 - - - ±0.006
1 - - ±0.01 ±0.006
2 ±0.01 - ±0.15 ±0.006
3 - - - ±0.01
4 - - - ±0.01
5 ±0.01 - ±0.02 ±0.01
10 ±0.02 ±0.08 ±0.02 ±0.02
20 - - - ±0.03
25 ±0.03 ±0.14 ±0.03 ±0.03
50 ±0.05 ±0.2 ±0.05 ±0.05
100 ±0.10 ±0.35 ±0.08 ±0.08
200 - - ±0.10 -
250 - ±0.65 ±0.12 -
500 - ±1.1 ±0.20 -
1000 - ±2.0 ±0.30 -
ENV-SOP-SHRT-0155, Rev 00
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18 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
Attachment IV: Water Density Correction Factors
Temp,
°C Density
Correction
Factor F
Temp,
°C Density
Correction
Factor F
20.0 0.99820 0.00000 22.6 0.99763 1.00057
20.1 0.99818 1.00002 22.7 0.99761 1.00059
20.2 0.99816 1.00004 22.8 0.99759 1.00061
20.3 0.99814 1.00006 22.9 0.99756 1.00064
20.4 0.99812 1.00008 23.0 0.99754 1.00066
20.5 0.99810 1.00010 23.1 0.99751 1.00069
20.6 0.99808 1.00012 23.2 0.99749 1.00071
20.7 0.99806 1.00014 23.3 0.99747 1.00073
20.8 0.99804 1.00016 23.4 0.99744 1.00076
20.9 0.99801 1.00019 23.5 0.99742 1.00078
21.0 0.99799 1.00021 23.6 0.99739 1.00081
21.1 0.99797 1.00023 23.7 0.99737 1.00083
21.2 0.99795 1.00025 23.8 0.99735 1.00085
21.3 0.99793 1.00027 23.9 0.99732 1.00088
21.4 0.99790 1.00030 24.0 0.99730 1.00090
21.5 0.99788 1.00032 24.1 0.99727 1.00093
21.6 0.99786 1.00034 24.2 0.99725 1.00095
21.7 0.99784 1.00036 24.3 0.99722 1.00098
21.8 0.99782 1.00039 24.4 0.99720 1.00100
21.9 0.99779 1.00041 24.5 0.99717 1.00103
22.0 0.99777 1.00043 24.6 0.99715 1.00105
22.1 0.99775 1.00045 24.7 0.99712 1.00108
22.2 0.99772 1.00048 24.8 0.99710 1.00110
22.3 0.99770 1.00050 24.9 0.99707 1.00113
22.4 0.99768 1.00052 25.0 0.99704 1.00116
22.5 0.99766 1.00054
ENV-SOP-SHRT-0155, Rev 00
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19 of 19
PROCESS STANDARD OPERATING PROCEDURE
TITLE:Support Equipment
ISSUER:Pace ENV – Sheridan – SHRT
COPYRIGHT © 2019 Pace Analytical Services, LLC.
Any printed copy of this SOP and all copies of this SOP outside of Pace are uncontrolled copies.
Uncontrolled copies are not tracked or replaced when new versions are released or the SOP is made obsolete.
Users of the SOP should verify the copy in possession is the current version of the SOP before use.
Attachment V: Adjustable Pipette Troubleshooting Guide
ERROR CAUSE SOLUTION
Droplets on the inside of the
pipette tip
Non-uniform wetting of the
plastic
Attach new pipette tip
Pipette drips, pipetted volume
too small
Tip is loose Push tip on tightly
Wrong pipette tip Use original Eppendorf tip
Piston leaks because it is
contaminated
Clean piston (See Section C)
Piston leaks because the
piston is damaged
Change piston and piston seal
(see Section C)
Piston leaks because the
seals are damaged
Change all Seals (See section
C)
Piston leaks because the nose
cone is loose
Tighten nose cone with a
wrench (See section C) and
change when necessary
Control button jams, or moves
erratically
Piston contaminated Clean piston and lubricate
lightly (See Section C
Seals contaminated Disassemble pipette. Clean all
seals and change where
appropriate. (See Section C)
Penetration of solvent vapors Open pipette at the central
junction and ventilate. Clean
piston and lubricate lightly.
Pipette blocked, too little liquid
is aspirated.
Liquid has penetrated the
nose cone and dried
Unscrew pipette at the central
junction, rinse the lower part
first with warm water and then
with distilled water and let dry.
Otherwise, Disassemble
pipette. Replace ejector seal in
the nose cone.
For 10-100μL and 50-200μL Replace the reducing tube in
the nose cone
Filling tube in the nose cone is
blocked.
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DocumentInformation
DocumentNumber: Revision:
DocumentTitle:
Department(s):
DateInformation
EffectiveDate:
Notes
DocumentNotes:
All Dates and Times are listed in:
ENV-SOP-SHRT-0038 00
Radon Flux Gas Emanation EPA 520/5-85-029
Rad Chem
29 Jan 2018
Central Time Zone
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Inter-Mountain Labs January 29, 2018
R-RadonFlux-1.1 Page 1 of 8
Standard Operating Procedures for Analysis of Radon Flux
Document Title: Standard Operating Procedures for Analysis of Radon Flux
Document Control Number: R-RadonFlux-1.1
Location: Inter-Mountain Laboratories, Inc., Sheridan
Address:1673 Terra Avenue
Sheridan, WY 82801
Written by: Tom Patten
Title:Lab Manager Phone: [phone]
Quality Manager: Michelle LaGory
Telephone: [phone]
Address:1673 Terra Avenue
Sheridan, WY 82801
Plan Coverage: Standard Operating Procedures for Analysis of Radon Flux
Lab Representative:_____________________________________________________
Lab Supervisor:_________________________________________________________
ENV-SOP-SHRT-0038, Rev 00
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Inter-Mountain Labs January 29, 2018
R-RadonFlux-1.1 Page 2 of 8
Standard Operating Procedure for Analysis of Radon Flux
1.0 Test Method.
1.1 Standard Operating Procedures for Analysis of Radon Flux using EPA 520/5-85-029.
2.0 Sample Matrix.
2.1 This procedure measures the radon gas that emanates from a surface.
3.0 Detection Limits.
3.1 This procedure has been shown to be sensitive at measurements ≥ 0.5 pCi/m
2-s, but the
sampling error may be orders of magnitudes larger than the measurement. Report
values with a count error at 95% confidence.
4.0 Scope and Application.
4.1 This method describes the measurement of radon flux at the laboratory. This method
does not attempt to describe all the procedures necessary to collect samples for a given
area.
5.0 Method Summary.
5.1 A 10 inch circular sampling device filled with activated carbon is used to collect radon gas
emanating from the area of the 10 inch circle covering a dry surface or ground. The
sampling device collects sample for 24 hours. During the 24 hours, precipitation must not
exceed 0.01 inches or the test may be void. After 24 hours, the carbon from the sampling
device is removed from the sampling surface and placed in a sealed can. The sealed can
is transferred to the laboratory. The laboratory will measure the activity of Bi214 with a
gamma spectrometer. The radon decay is calculated and a value of radon emanation
using the Bi 214 photo peak at 609 KEV is reported in pCi/m2-s.
6.0 Definitions.
6.1 Radon Flux: The amount of radon emitted in activity from a surface over a time interval
usually expressed in pCi/m2-s.
6.2 Compton - The natural background gamma radiation detectable by a spectrometer.
6.3 Secular equilibrium – when the half-life of the progeny (daughter) is much shorter than the
half-life of the parent; the activity of the daughter approaches the activity of the parent.
After a period of time, usually assumed 10 half-lifes of the daughter, where a sample is
static or controlled from separation of daughter and parent the activity of daughter is
assumed to equal the activity of the parent.
6.4 Daughter product – the progeny of a parent radioisotope
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Inter-Mountain Labs January 29, 2018
R-RadonFlux-1.1 Page 3 of 8
6.5 Decay - a period of decay of product over time based on half-life.
7.0 Interferences, Considerations.
7.1 Geometries should be matched as closely as possible, for example the head-space in the
cans, to eliminate variability in counting. This also includes placement of the samples
within the counting chamber—centering over the detector is critical to obtain consistent
data.
7.2 Attrition of carbon during sampling can cause losses. Fine particulates can be lost during
carbon recovery at sampling; these fine particles also have more surface area per weight.
In order to reduce losses due to attrition, follow guidance in section 14.1. Coconut Carbon
has been found to have the good physical properties with respect to attrition losses.
8.0 Safety.
8.1 See SDS sheets for information on all chemicals. See the IML Safety Plan for any other
safety information related to radiation.
9.0 Apparatus and Materials.
9.1 Ortec Gamma Spectrometer with germanium detector at 40% efficiency and gamma ray
spectrum from 40 KeV to 1200 KeV or NaI gamma spectrometer.
9.2 Stainless steel cylindrical cans with volume of 16 ounces, with lids
9.3 Electrical tape
10.0 Reagents and Consumable Materials.
10.1 Activated carbon from coconuts >100 mesh US sieve series.
10.2 NIST traceable source that contains between 3000 and 100,000 pCi/mL of Ra226 in
solution.
11.0 Sample Collection, Preservation, Handling.
11.1Collect each sample in compliance with EPA 520/5-85-029.
11.2Sample should arrive sealed in a stainless steel can of the same dimension of the
standards and should be counted within 2 half life’s of Rn222 from the end of collection.
12.0 Quality Control.
12.1A batch is recommended to consist of 20 samples.
12.2Method Blank (MB) – a MB shall be created from unexposed activated carbon in the
same configuration as the samples. A MB will be analyzed at the beginning and at the
end of each counting day. A best practice is to use activated carbon for the MB that was
prepared from the same batch of carbon as the samples.
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R-RadonFlux-1.1 Page 4 of 8
12.3Two Laboratory control samples (LCS) are analyzed at the beginning and at the end of
each counting day. The LCS's are standards that are of known activity and similar to
samples in composition and geometry. The LCS's will be within +/- 10% of assigned
value.
12.4A sample will be counted twice to represent a duplicate measurement. The duplicate
measurements should have a Relative Percent Difference of 10%.
13.0 Calibration and Standardization.
13.1Compton (Background) determination – The instrument is run empty or with an empty can
for at least 60 minutes or three times the sample count time. This is used as the
Compton subtraction for the net count.
13.1.1 Longer runs can be used to determine average Compton for comparison with the
run time Compton.
13.2Energy calibration – using the NIST traceable source, establish the energy spectral plot
by counting this source long enough for the low energy gamma rays to be distinguished
from the Compton. The instrument manufacturer’s default settings or manual setting can
be used to set the region of interest (ROI) at 609 KEV for the Gamma Spectrometer.
13.3Efficiency calibration – this calibration is performed in the same geometry as the samples,
with the prepared standard.
13.3.1 The efficiency is calculated for the 609 peak with at minimum 10,000 counts.
14.0 Procedure.
14.1 Carbon preparation - Wet tumble then wash the carbon through 140-200 mesh screen
and then dry in an oven at 110 ± 10 oC for 24 Hours. After removal from oven, fill
stainless steel cans, and seal with electrical tape. Keep exposure to air to a minimum
during cooling and sealing cans. The cans are now ready to be sent out to sample sites
for placement in sample collectors.
14.2After samples are received, they should be counted as quickly as reason allows to ensure
they are counted within 2 half lifes of radon. The sooner they are counted the better.
14.3 Place sample can on spectrometer for at minimum 10 minutes. The placement of cans
should match the geometry of the standards and LCS to ensure appropriate analysis.
Obtain net area counts at 609 KEV. Each batch should include a blank, duplicate, and
LCS.
14.4 Calculate based on comparing net area counts to a standard, see calibration section.
See section on calculation and report in pCi/m
2-s.e
15.0 Calculations.
15.1Calculation A. Calculations can be performed by either A or B:
ENV-SOP-SHRT-0038, Rev 00
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6 of 9
Inter-Mountain Labs January 29, 2018
R-RadonFlux-1.1 Page 5 of 8
=!
!!()!()
Where:
J = radon flux in pCi/m2-s
C = net area counts for Bi214 at 609 Kev
!= radon decay constant, 0.000002097/s (2.097 E-6/s)
A = area of collection in m2
E = efficiency of detector; where counts/second divided by K and E converts to pCi
K = 0.037 d/s/pCi
t1 = sampling/exposure time, s
t2 = time from start of sample collection to start of counting, s
t3 = time from start of sample collection to end of counting, s
15.2Calculation B. Calculations can be performed by either A or B:
=

Where:
J = radon flux in pCi/m2-s
P = Decay corrected value in pCi/Can
A = area of collection in m2
t1 = sampling/exposure time, s
=
.

Where:
P = Decay corrected value in pCi/Can
H = Measured value in pCi/Can
t4 = time from midpoint of sample collection to midpoint of counting, days
d = decay factor of 3.825 days
=/

Where:
H = Measured value in pCi/Can
t5 = counting time
E = efficiency of detector; where counts/second divided by K and E converts to pCi
K = 0.037 d/s/pCi
ENV-SOP-SHRT-0038, Rev 00
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Inter-Mountain Labs January 29, 2018
R-RadonFlux-1.1 Page 6 of 8
16.0 Precision and Accuracy.
16.1Relative percent difference, RPD
RPD =
2
)BA(
)BA(
∀
#x 100
Where:
A = Net activity of the first measurement
B = Net activity of the second measurement
16.2 Replicate error ratio, RER
RER =
2
b
2
a ss
BA
∀
#
Where:
A = Net activity of the first measurement
B = Net activity of the second measurement
sa = The uncertainty of the first measurement
sb = The uncertainty of the second measurement
17.0 Pollution Prevention
17.1This procedure by definition is used on radioactive materials. All use of these materials is
minimized as much as possible, for safety and waste containment.
17.2Sample disposal is conducted per IML Sample Disposal Procedure and IML Safety
Plan.
18.0 Data Assessment and Acceptance Criteria.
18.1MB
18.1.1 The MB results should be below the RL or minimum detectable amount (MDA).
18.2 LCS
18.2.1 The criteria can be developed with control charts using 3 sigma, or have a
recovery of ± 20 percent of the true value.
18.3DUP
18.3.1 The relative percent difference (RPD) should be ≤ 20 percent.
ENV-SOP-SHRT-0038, Rev 00
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Inter-Mountain Labs January 29, 2018
R-RadonFlux-1.1 Page 7 of 8
18.3.1.1 If a duplicate is greater than the 20 percent window and less than 5 times
the method (RL), the duplicate may be evaluated using the replicate error ratio
(RER). If the value is less than 2, the duplicate data is considered acceptable.
19.0 Contingencies and Corrective Action for Out of Control or Unacceptable Data.
19.1If MB is above the RL, MB is recounted or reported with an appropriate qualifier.
19.2If the LCS does not meet acceptance criteria, recount LCS and determine if the entire
batch needs to be recounted.
19.3If the Duplicate does not meet acceptance criteria, the duplicate may be recounted or
flagged in the report.
20.0 Waste Management.
20.1The Radiochemistry Lab follows the policies and procedures in the Inter-Mountain Labs
Sample Disposal Procedure and Safety Plan, and also adheres to the requirements
inherent within the licensing requirements of the Nuclear Regulatory Commission (NRC).
21.0 References.
21.1USEPA. January 1986. EPA-520/5-85-029. Radon Flux Measurements on Gardinier
and Royster Phosphogypsum Piles Near Tampa and Mulberry, Florida; Prepared for US
EPA, Eastern Environmental Radiation Facility, Montgomery Alabama.
21.2USEPA. August 2017. Method 115. Monitoring for Radon-222 Emissions.
22.0 Tables, Diagrams, Comments.
ENV-SOP-SHRT-0038, Rev 00
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R-RadonFlux-1.1 Page 8 of 8
ATTACHMENT #1
STANDARD OPERATING PROCEDURE
METHOD TRAINING RECORD
Document Title:Standard Operating Procedures for Analysis of Radon Flux
Document Control Number:R-RadonFlux-1.1
Location:Inter-Mountain Laboratories, Inc.
I have read the preceding document and understand all sections.
I have been trained in the performance of the methods and any recent revisions to this
procedure.
ANALYST SIGNATURE DATE TRAINER
____________________ _____________________ ________ _________________
____________________ _____________________ ________ _________________
____________________ _____________________ ________ _________________
____________________ _____________________ ________ _________________
____________________ _____________________ ________ _________________
____________________ _____________________ ________ _________________
____________________ _____________________ ________ _________________
____________________ _____________________ ________ _________________
____________________ _____________________ ________ _________________
____________________ _____________________ ________ _________________
____________________ _____________________ ________ _________________
____________________ _____________________ ________ _________________
____________________ _____________________ ________ _________________
___________________ _____________________ ________ _________________
ENV-SOP-SHRT-0038, Rev 00
December 28, 2023 - Page 104 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
ANFIELD RESOURCES HOLDING CORP.
MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS
USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS)
STANDARD OPERATING PROCEDURE EP-10
SHOOTARING MILL SITE

Revision No. 2
11/20/2021
1

MONITORING RADON-222 EMISSIONS
aka RADON FLUX MEASUREMENT
USING LARGE AREA ACTIVATED CHARCOAL CANISTERS
(LAACCs)

STANDARD OPERATING PROCEDURE EP-10

Prepared by
R and D Enterprises, Inc.
P.O. Box 3321
Casper, WY 82602

For

Anfield Resources Holding Corp.

November 20, 2021
Revision 2

Approved by: Sheryl A. Garling Date: 11-20-2021
Contract Corporate Radiation Safety Officer

Approved by: _________________________________________ Date: _________________
Mill Manager or Designee

December 28, 2023 - Page 105 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
ANFIELD RESOURCES HOLDING CORP.
MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS
USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS)
STANDARD OPERATING PROCEDURE EP-10
SHOOTARING MILL SITE

Revision No. 2
11/20/2021
2
REVISION HISTORY

Date Version Description Author
January 1, 2017 0 Initial Draft Roger A. Garling/S.A. Garling
February 28, 2021 1 Name Rev S.A. Garling
November 20, 2021 2 Forms & EPA Method115 Added S.A. Garling

December 28, 2023 - Page 106 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
ANFIELD RESOURCES HOLDING CORP.
MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS
USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS)
STANDARD OPERATING PROCEDURE EP-10
SHOOTARING MILL SITE

Revision No. 2
11/20/2021
3

CONTENTS
1 ACRONYMS, ABBREVIATIONS, AND INITIALS ................................................................... 4
2 PURPOSE ..................................................................................................................... 5
3 DEFINITIONS ................................................................................................................. 5
4 APPLICABILITY ............................................................................................................. 5
5 DISCUSSION ................................................................................................................. 5
6 RESPONSIBILITY ........................................................................................................... 7
7 EQUIPMENT AND MATERIALS ......................................................................................... 7
8 PROCEDURE ................................................................................................................. 7
9 QUALITY ASSURANCE ................................................................................................... 7
10 RECORDS & REPORTING ............................................................................................... 8
11 REFERENCES................................................................................................................ 9
12 APPENDIX A ............................................................................................................... 10

• Reference 1 Appendix A, Procedure for Making Radon Flux Measurements Using Large Area
Activated Charcoal Canister (LAACC) with Diagrams
• Field Forms
December 28, 2023 - Page 107 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
ANFIELD RESOURCES HOLDING CORP.
MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS
USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS)
STANDARD OPERATING PROCEDURE EP-10
SHOOTARING MILL SITE

Revision No. 2
11/20/2021
4
1 ACRONYMS, ABBREVIATIONS, AND INITIALS

CRSO Corporate Radiation Safety Officer

LAACC Large Area Charcoal Canister

m Meter

pCi Picocurie

sec Second
December 28, 2023 - Page 108 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
ANFIELD RESOURCES HOLDING CORP.
MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS
USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS)
STANDARD OPERATING PROCEDURE EP-10
SHOOTARING MILL SITE

Revision No. 2
11/20/2021
5
STANDARD OPERATING PROCEDURE EP-10
MONITORING RADON-222 EMISSIONS

2 PURPOSE
This Standard Operating Procedure (SOP) describes the monitoring methods which must be used in
determining the radon-222 emissions from underground uranium mines, uranium mill tailings piles,
phosphogypsum stacks, and other piles of waste material emitting radon.

3 DEFINITIONS
Refer to references.

4 APPLICABILITY
Measurement and Calculation of Radon Flux from Uranium Mill Tailings Piles

5 DISCUSSION
Frequency of Flux Measurement
A single set of radon flux measurements may be made, or if the owner or operator chooses, more frequent
measurements may be made over a one-year period. These measurements may involve quarterly, monthly, or
weekly intervals. All radon measurements shall be made as described in paragraphs 2.1.2 through 2.1.6 except
that for measurements made over a one-year period, the requirement of paragraph 2.1.4(c) shall not apply. The
mean radon flux from the pile shall be the arithmetic mean of the mean radon flux for each measurement period.
The weather conditions, moisture content of the tailings and area of the pile covered by water existing at the
time of the measurement shall be chosen so as to provide measurements representative of the long-term radon
flux from the pile and shall be subject to EPA review and approval.

DISTRIBUTION OF FLUX MEASUREMENTS
The distribution and number of radon flux measurements required on a pile will depend on clearly defined areas
of the pile (called regions) that can have significantly different radon fluxes due to surface conditions. The mean
radon flux shall be determined for each individual region of the pile. Regions that shall be considered for
operating mill tailings piles are:
(a) Water covered areas,
(b) Water saturated areas (beaches),
(c) Dry top surface areas, and
(d) Sides, except where earthen material is used in dam construction.
For mill tailings after disposal the pile shall be considered to consist of only one region.

NUMBER OF FLUX MEASUREMENTS
Radon flux measurements shall be made within each region on the pile, except for those areas covered with
water. Measurements shall be made at regularly spaced locations across the surface of the region, realizing
that surface roughness will prohibit measurements in some areas of a region. The minimum number of flux
measurements considered necessary to determine a representative mean radon flux value for each type of
region on an operating pile is:

December 28, 2023 - Page 109 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
ANFIELD RESOURCES HOLDING CORP.
MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS
USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS)
STANDARD OPERATING PROCEDURE EP-10
SHOOTARING MILL SITE

Revision No. 2
11/20/2021
6
(a) Water covered area—no measurements required as radon flux is assumed to be zero,
(b) Water saturated beaches—100 radon flux measurements,
(c) Loose and dry top surface—100 radon flux measurements,
(d) Sides—100 radon flux measurements, except where earthen material is used in dam construction.

For a mill tailings pile after disposal which consists of only one region a minimum of 100 measurements are
required.

RESTRICTIONS TO RADON FLUX MEASUREMENTS
The following restrictions are placed on making radon flux measurements:

(a) Measurements shall not be initiated within 24 hours of a rainfall.
(b) If a rainfall occurs during the 24-hour measurements period, the measurement is invalid if the seal around
the lip of the collector has washed away or if the collector is surrounded by water.
(c) Measurements shall not be performed if the ambient temperature is below 35 °F or if the ground is frozen.
2.1.5 Areas of Pile Regions. The approximate area of each region of the pile shall be determined in units of
square meters.

RADON FLUX MEASUREMENT
Measuring radon flux involves the adsorption of radon on activated charcoal in a large-area collector. The radon
collector is placed on the surface of the pile area to be measured and allowed to collect radon for a time period
of 24 hours. The radon collected on the charcoal is measured by gamma-ray spectroscopy. The detailed
measurement procedure provided in Appendix A of EPA 520/5-85-0029(1), and is included in Appendix A of
this SOP, shall be used to measure the radon flux on uranium mill tailings, except the surface of the tailings
shall not be penetrated by the lip of the radon collector as directed in the procedure, rather the collector shall
be carefully positioned on a flat surface with soil or tailings used to seal the edge.

CALCULATIONS
The mean radon flux for each region of the pile and for the total pile shall be calculated and reported as follows:
(a) The individual radon flux calculations shall be made as provided in appendix A EPA 86 (1). The mean radon
flux for each region of the pile shall be calculated by summing all individual flux measurements for the region
and dividing by the total number of flux measurements for the region.

(b) The mean radon flux for the total uranium mill tailings pile shall be calculated as follows.

Js = J1A1+…J2A2…JiAi

At

Where:
Js = Mean flux for the total pile (pCi/m2-s)
Ji = Mean flux measured in region i (pCi/m2-s)
Ai = Area of region i (m2)
At = Total area of the pile (m2)

REPORTING
The results of individual flux measurements, the approximate locations on the pile, and the mean radon flux for
each region and the mean radon flux for the total stack shall be included in the emission test report. Any
condition or unusual event that occurred during the measurements that could significantly affect the results
should be reported.

December 28, 2023 - Page 110 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
ANFIELD RESOURCES HOLDING CORP.
MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS
USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS)
STANDARD OPERATING PROCEDURE EP-10
SHOOTARING MILL SITE

Revision No. 2
11/20/2021
7
6 RESPONSIBILITY
The Corporate Radiation Safety Officer (CRSO) or his/her designee is responsible for implementing and
following this procedure.

7 EQUIPMENT AND MATERIALS
Sufficient Large Area Activated Charcoal Canister (LAACC) collectors as described in Reference 1 .

Sufficient canisters containing ~180 grams of activated carbon that has been decayed and or baked to
remove any residual radon adsorbed onto the activated carbon.

Minimum/Maximum outdoor thermometer

Rain gauge

Shovel

Field forms, pens, watch and camera

8 PROCEDURE
SAMPLING PROCEDURES
Records of field activities and laboratory measurements shall be maintained. A Field Form is located in
Appendix A and the following information shall be recorded for each charcoal canister measurement:

(a) Site Name and Air Quality ID #
(b) Name of pile
(c) Sample location
(d) Sample ID number
(e) Date and time on
(f) Date and time off
(g) Observations of meteorological conditions and comments

Records shall include all applicable information associated with determining the sample measurement,
calculations, observations, and comments.

9 QUALITY ASSURANCE
SAMPLING PROCEDURES
Records of field activities and laboratory measurements shall be maintained. The following information shall be
recorded for each charcoal canister measure ment:
(a) Site and Air Quality ID #
(b) Name of pile
(c) Sample location
(d) Sample ID number
(e) Date and time on
(f) Date and time off
(g) Observations of meteorological conditions and comments

December 28, 2023 - Page 111 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
ANFIELD RESOURCES HOLDING CORP.
MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS
USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS)
STANDARD OPERATING PROCEDURE EP-10
SHOOTARING MILL SITE

Revision No. 2
11/20/2021
8
Records shall include all applicable information associated with determining the sample measurement,
calculations, observations, and comments.

SAMPLE CUSTODY
Custodial control of all charcoal samples exposed in the field shall be maintained in accordance with EPA chain-
of-custody field procedures. A control record shall document all custody changes that occur between the field
and laboratory personnel.

COMMERCIAL ANALYTICAL LABORATORY
A third party commercial analytical laboratory or equivalent will be used to analyze the exposed charcoal .

The third-party laboratory will follow their analytical SOPs for radon-222/gamma spectroscopy for exposed
charcoal and comply with their commercial laboratory certifications predicated by EPA, NELAC or other
certification authority.

INTERNAL QUALITY CONTROL CHECKS AND FREQUENCY
The charcoal from every tenth exposed canister shall be recounted. Five percent of the samples analyzed shall
be either blanks (charcoal having no radioactivity added) or samples spiked with known quantities of radium-
226.

DATA PRECISION, ACCURACY, AND COMPLETENESS
The precision, accuracy, and completeness of measurements and analyses shall be within the following limits
for samples measuring greater than 1.0 pCi/m2−s.
(a) Precision: 10%
(b) Accuracy: ±10%
(c) Completeness: at least 85% of the measurements must yield useable results.

10 RECORDS & REPORTING
Radon-222 Emissions Measurement Field Form are located in Appendix A

40 CFR PART §61.250 DESIGNATION OF FACILITIES
The provisions of this subpart apply to owners or operators of facilities licensed to manage uranium byproduct
materials during and following the processing of uranium ores, commonly referred to as uranium mills and their
associated tailings. This subpart does not apply to the disposal of tailings.

40 CFR PART §61.253 DETERMINING COMPLIANCE
Compliance with the emission standard in this subpart shall be determined annually through the use of Method
115 of appendix B. When measurements are to be made over a one-year period, EPA shall be provided with a
schedule of the measurement frequency to be used. The schedule may be submitted to EPA prior to or after
the first measurement period. EPA shall be notified 30 days prior to any emissions test so that EPA may, at its
option, observe the test.

40 CFR PART §61.254 ANNUAL REPORTING REQUIREMENTS
(a) The owners or operators of operating existing mill impoundments shall report the results of the compli ance
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.
December 28, 2023 - Page 112 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
ANFIELD RESOURCES HOLDING CORP.
MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS
USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS)
STANDARD OPERATING PROCEDURE EP-10
SHOOTARING MILL SITE

Revision No. 2
11/20/2021
9
(4) Each report shall be signed and dated by a corporate officer in charge of the facility and contain the following
declaration immediately above the signature line:

I certify under penalty of law that I have personally examined and am familiar with the information su bmitted
herein and based on my inquiry of those individuals immediately responsible for obtaining the information, I
believe that the submitted information is true, accurate and complete. I am aware that there are significant
penalties for submitting false information including the possibility of fine and imprisonment. See, 18 U.S.C.
1001.

(b) If the facility is not in compliance with the emission limits of § 61.252 in the calendar year covered by the
report, then the facility must commence reporting to the Administrator on a monthly basis the information listed
in paragraph (a) of this section, for the preceding month. These reports will start the month immediately following
the submittal of the annual report for the year in noncompliance an d will be due 30 days following the end of
each month. This increased level of reporting will continue until the Administrator has determined that the
monthly reports are no longer necessary. In addition to all the information required in paragraph (a) of this
section, monthly reports shall also include the following information:

(1) All controls or other changes in operation of the facility that will be or are being installed to bring the facility
into compliance.
(2) If the facility is under a judicial or administrative enforcement decree, the report will describe the facilities
performance under the terms of the decree.
(c) The first report will cover the emissions of calendar year 1990.

40 CFR PART §61.255 RECORDKEEPING REQUIREMENTS
The owner or operator of the mill must maintain records documenting the source of input parameters including
the results of all measurements upon which they are based, the calculations and/or analytical methods used to
derive values for input parameters, and the procedur e used to determine compliance. In addition, the
documentation should be sufficient to allow an independent auditor to verify the accuracy of the determination
made concerning the facility’s compliance with the standard. These records must be kept at the mill for at least
five years and upon request be made available for inspection by the Administrator, or his authorized
representative.

11 REFERENCES

(1) Hartley, J.N. and Freeman, H.D., “Radon Flux Measurements on Gardinier and Royster
phosphogypsum Piles Near Tampa and Mulberry, Florida,” U.S. Environmental Protection Agency
Report, EPA 520/5-85-029, NTIS #PB86-161874, January 1986.
(2) Environmental Protection Agency, “Indoor Radon and Radon Decay Product Measurement Protocols,”
EPA 520/1-89-009, U.S. Environmental Protection Agency, Washington, DC. (1989).
(3) U. S. Environmental Protection Agency, 40 Code of Federal Regulations (CFR), Part 61, Environmental
Protection Agency, National Emission Standards for Hazardous Air Pollutants (N ESHAPs):
Radionuclides: Final Rule and Notice of Reconsideration, December 15, 1989. Subpart W was updated
April 2017.
(4) U. S. Nuclear Regulatory Commission, Radiological Effluent and Environmental Monitoring at Uranium
Mills, Regulatory Guide 4.14, April 1980.
(5) U. S. Nuclear Regulatory Commission, Title 10, Code of Federal Regulations (CFR), Part 40, Appendix
A to Part 40—Criteria Relating to the Operation of Uranium Mills and the Disposition of Tailings or
Wastes Produced by the Extraction or Concentration of Source Material From Ores Processed
Primarily for Their Source Material Content, August 2017.

December 28, 2023 - Page 113 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
ANFIELD RESOURCES HOLDING CORP.
MONITORING RADON-222 EMISSIONS, aka RADON FLUX MEASUREMENTS
USING LARGE AREA ACTIVATED CHARCOAL CANISTERS (LAACCS)
STANDARD OPERATING PROCEDURE EP-10
SHOOTARING MILL SITE

Revision No. 2
11/20/2021
10

12 APPENDIX A

DIAGRAMS, FORMS &
EPA METHOD 115

December 28, 2023 - Page 114 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
December 28, 2023 - Page 115 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
PAGE_____ OF _____
RADON FLUX EMISSION / LARGE AREA ACTIVATED CHARCOAL CANISTER (LAACC) FIELD NOTE
CLIENT: ANFIELD RESOURCES HOLDING CORP LOCATION/TAILS CELL ID: SHOOTARING CANYON MILL PROJECT UT Air Quality ID 14169
WEATHER CONDITION: PRECIP 24 HOUR Prior AND DAY OF: MIN TEMP:
MM/DD/YY
XX/XX/XXXX
MM/DD/YY
XX/XX/XXXX
MM/DD/YY
LAACC
UNIT #
CHARCOAL
CAN #
TAILS
LOCATION
ID/COORD
24 HR TIME
DEPLOY/SET
24 HR TIME
RETRIEVE
SITE FIELD
STAFF
INITIALS
LAB SAMPLE
ID# 24 HR TIME
START COUNT
COUNT
MINUTES
GROSS
COUNTS COMMENTS

December 28, 2023 - Page 116 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Method 115 8/4/2017

1

While we have taken steps to ensure the accuracy of this Internet version of the document, it is not the
official version. To see a complete version including any recent edits, visit:
https://www.ecfr.gov/cgi-bin/ECFR?page=browse and search under Title 40, Protection of
Environment.
METHOD 115—MONITORING FOR RADON-222 EMISSIONS
This appendix describes the monitoring methods which must be used in determining the radon-
222 emissions from underground uranium mines, uranium mill tailings piles, phosphogypsum
stacks, and other piles of waste material emitting radon.
1. Radon-222 Emissions from Underground Uranium Mine Vents
1.1 Sampling Frequency and Calculation of Emissions. Radon-222 emissions from underground
uranium mine vents shall be determined using one of the following methods:
1.1.1 Continuous Measurement. These measurements shall be made and the emissions
calculated as follows:
(a) The radon-222 concentration shall be continuously measured at each mine vent whenever the
mine ventilation system is operational.
(b) Each mine vent exhaust flow rate shall be measured at least 4 times per year.
(c) A weekly radon-222 emission rate for the mine shall be calculated and recorded weekly as
follows:
Aw= C1Q1T1 + C2Q2T2 + . . . CiQiTi
Where:
Aw = Total radon-222 emitted from the mine during week (Ci)
Ci = Average radon-222 concentration in mine vent i(Ci/m3)
Qi = Volumetric flow rate from mine vent i(m3/hr)
Ti = Hours of mine ventilation system operation during week for mine vent i(hr)
(d) The annual radon-222 emission rate is the sum of the weekly emission rates during a calendar
year.
1.1.2 Periodic Measurement. This method is applicable only to mines that continuously operate
their ventilation system except for extended shutdowns. Mines which start up and shut down
their ventilation system frequently must use the continuous measurement method describe in
Section 1.1.1 above. Emission rates determined using periodic measurements shall be measured
and calculated as follows:
December 28, 2023 - Page 117 of 126Anfield Resources Holding Corp. - Shootaring Canyon Mill - Site 14169 - 2023 Radon Flux Measurement Report
Method 115 8/4/2017

2

(a) The radon-222 shall be continuously measured at each mine vent for at least one week every
three months.
(b) Each mine vent exhaust flow rate shall be measured at least once during each of the radon-
222 measurement periods.
(c) A weekly radon-222 emission rate shall be calculated for each weekly period according to the
method described in Section 1.1.1. In this calculation T = 168 hr.
(d) The annual radon-222 emission rate from the mine should be calculated as follows:
𝐴𝑦=52 −𝑊𝑠
𝑛(𝐴𝑤𝑖+𝐴𝑤2 +⋯𝐴𝑤𝑖)
Where:
Ay = Annual radon-222 emission rate from the mine (Ci)
Awi = Weekly radon-222 emission rate during the measurement period i (Ci)
n = Number of weekly measurement periods per year
Ws = Number of weeks during the year that the mine ventilation system is shut down in excess of
7 consecutive days, i.e. the sum of the number of weeks each shut down exceeds 7 days
1.2 Test Methods and Procedures
Each underground mine required to test its emissions, unless an equivalent or alternative method
has been approved by the Administrator, shall use the following test methods:
1.2.1 Test Method 1 of appendix A to part 60 shall be used to determine velocity traverses. The
sampling point in the duct shall be either the centroid of the cross section or the point of average
velocity.
1.2.2 Test Method 2 of appendix A to part 60 shall be used to determine velocity and
volumetric flow rates.
1.2.3 Test Methods A-6 or A-7 of appendix B, Method 114 to part 61 shall be used for the
analysis of radon-222. Use of Method A-7 requires prior approval of EPA based on conditions
described in appendix B.
1.2.4 A quality assurance program shall be conducted in conformance with the programs
described for Continuous Radon Monitors and Alpha Track Detectors in EPA 520/1-89-009. (2)
2. Radon-222 Emissions from Uranium Mill Tailings Piles
2.1 Measurement and Calculation of Radon Flux from Uranium Mill Tailings Piles.
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2.1.1 Frequency of Flux Measurement. A single set of radon flux measurements may be made,
or if the owner or operator chooses, more frequent measurements may be made over a one year
period. These measurements may involve quarterly, monthly or weekly intervals. All radon
measurements shall be made as described in paragraphs 2.1.2 through 2.1.6 except that for
measurements made over a one year period, the requirement of paragraph 2.1.4(c) shall not
apply. The mean radon flux from the pile shall be the arithmetic mean of the mean radon flux for
each measurement period. The weather conditions, moisture content of the tailings and area of
the pile covered by water existing at the time of the measurement shall be chosen so as to
provide measurements representative of the long term radon flux from the pile and shall be
subject to EPA review and approval.
2.1.2 Distribution of Flux Measurements. The distribution and number of radon flux
measurements required on a pile will depend on clearly defined areas of the pile (called regions)
that can have significantly different radon fluxes due to surface conditions. The mean radon flux
shall be determined for each individual region of the pile. Regions that shall be considered for
operating mill tailings piles are:
(a) Water covered areas,
(b) Water saturated areas (beaches),
(c) Dry top surface areas, and
(d) Sides, except where earthen material is used in dam construction.
For mill tailings after disposal the pile shall be considered to consist of only one region.
2.1.3 Number of Flux Measurements. Radon flux measurements shall be made within each
region on the pile, except for those areas covered with water. Measurements shall be made at
regularly spaced locations across the surface of the region, realizing that surface roughness will
prohibit measurements in some areas of a region. The minimum number of flux measurements
considered necessary to determine a representative mean radon flux value for each type of region
on an operating pile is:
(a) Water covered area—no measurements required as radon flux is assumed to be zero,
(b) Water saturated beaches—100 radon flux measurements,
(c) Loose and dry top surface—100 radon flux measurements,
(d) Sides—100 radon flux measurements, except where earthern material is used in dam
construction.
For a mill tailings pile after disposal which consists of only one region a minimum of 100
measurements are required.
2.1.4 Restrictions to Radon Flux Measurements. The following restrictions are placed on
making radon flux measurements:
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(a) Measurements shall not be initiated within 24 hours of a rainfall.
(b) If a rainfall occurs during the 24 hour measurements period, the measurement is invalid if the
seal around the lip of the collector has washed away or if the collector is surrounded by water.
(c) Measurements shall not be performed if the ambient temperature is below 35 °F or if the
ground is frozen.
2.1.5 Areas of Pile Regions. The approximate area of each region of the pile shall be
determined in units of square meters.
2.1.6 Radon Flux Measurement. Measuring radon flux involves the adsorption of radon on
activated charcoal in a large-area collector. The radon collector is placed on the surface of the
pile area to be measured and allowed to collect radon for a time period of 24 hours. The radon
collected on the charcoal is measured by gamma-ray spectroscopy. The detailed measurement
procedure provided in appendix A of EPA 520/5-85-0029(1) shall be used to measure the radon
flux on uranium mill tailings, except the surface of the tailings shall not be penetrated by the lip
of the radon collector as directed in the procedure, rather the collector shall be carefully
positioned on a flat surface with soil or tailings used to seal the edge.
2.1.7 Calculations. The mean radon flux for each region of the pile and for the total pile shall be
calculated and reported as follows:
(a) The individual radon flux calculations shall be made as provided in appendix A EPA 86 (1).
The mean radon flux for each region of the pile shall be calculated by summing all individual
flux measurements for the region and dividing by the total number of flux measurements for the
region.
(b) The mean radon flux for the total uranium mill tailings pile shall be calculated as follows.
𝐽𝑠=𝐽1 𝐴1 +⋯ 𝐽2 𝐴2 ⋯𝐽𝑖𝐴𝑖
𝐴𝑠

Where:
Js = Mean flux for the total pile (pCi/m2-s)
Ji = Mean flux measured in region i (pCi/m2-s)
Ai = Area of region i (m2)
At = Total area of the pile (m2)
2.1.8 Reporting. The results of individual flux measurements, the approximate locations on
the pile, and the mean radon flux for each region and the mean radon flux for the total stack shall
be included in the emission test report. Any condition or unusual event that occurred during the
measurements that could significantly affect the results should be reported.
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3.0 Radon-222 Emissions from Phosphogypsum Stacks.
3.1 Measurement and Calculation of the Mean Radon Flux. Radon flux measurements
shall be made on phosphogypsum stacks as described below:
3.1.1 Frequency of Measurements. A single set of radon flux measurements may be made
after the phosphogypsum stack becomes inactive, or if the owner or operator chooses, more
frequent measurements may be made over a one year period. These measurements may involve
quarterly, monthly or weekly intervals. All radon measurements shall be made as described in
paragraphs 3.1.2 through 3.1.6 except that for measurements made over a one year period, the
requirement of paragraph 3.1.4(c) shall not apply. For measurements made over a one year
period, the radon flux shall be the arithmetic mean of the mean radon flux for each measurement
period.
3.1.2 Distribution and Number of Flux Measurements. The distribution and number of
radon flux measurements required on a stack will depend on clearly defined areas of the stack
(called regions) that can have significantly different radon fluxes due to surface conditions. The
mean radon flux shall be determined for each individual region of the stack. Regions that shall be
considered are:
(a) Water covered areas,
(b) Water saturated areas (beaches),
(c) Loose and dry top surface areas,
(d) Hard-packed roadways, and
(e) Sides.
3.1.3 Number of Flux Measurements. Radon flux measurements shall be made within each
region on the phosphogypsum stack, except for those areas covered with water. Measurements
shall be made at regularly spaced locations across the surface of the region, realizing that surface
roughness will prohibit measurements in some areas of a region. The minimum number of flux
measurements considered necessary to determine a representative mean radon flux value for each
type of region is:
(a) Water covered area—no measurements required as radon flux is assumed to be zero,
(b) Water saturated beaches—50 radon flux measurements,
(c) Loose and dry top surface—100 radon flux measurements,
(d) Hard-packed roadways—50 radon flux measurements, and
(e) Sides—100 radon flux measurements.
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A minimum of 300 measurements are required. A stack that has no water cover can be
considered to consist of two regions, top and sides, and will require a minimum of only 200
measurements.
3.1.4 Restrictions to Radon Flux Measurements. The following restrictions are placed on
making radon flux measurements:
(a) Measurements shall not be initiated within 24 hours of a rainfall.
(b) If a rainfall occurs during the 24 hour measurement period, the measurement is invalid if
the seal around the lip of the collector has washed away or if the collector is
surrounded by water.
(c) Measurements shall not be performed if the ambient temperature is below 35 °F or if the
ground is frozen.
3.1.5 Areas of Stack Regions. The approximate area of each region of the stack shall be
determined in units of square meters.
3.1.6 Radon Flux Measurements. Measuring radon flux involves the adsorption of radon
on activated charcoal in a large-area collector. The radon collector is placed on the surface of the
stack area to be measured and allowed to collect radon for a time period of 24 hours. The radon
collected on the charcoal is measured by gamma-ray spectroscopy. The detailed measurement
procedure provided in appendix A of EPA 520/5-85-0029(1) shall be used to measure the radon
flux on phosphogypsum stacks, except the surface of the phosphogypsum shall not be penetrated
by the lip of the radon collector as directed in the procedure, rather the collector shall be
carefully positioned on a flat surface with soil or phosphogypsum used to seal the edge.
3.1.7 Calculations. The mean radon flux for each region of the phosphogypsum stack and
for the total stack shall be calculated and reported as follows:
(a) The individual radon flux calculations shall be made as provided in appendix A EPA 86
(1). The mean radon flux for each region of the stack shall be calculated by summing
all individual flux measurements for the region and dividing by the total number of
flux measurements for the region.
(b) The mean radon flux for the total phosphogypsum stack shall be calculated as follows.
𝐽𝑠=𝐽1 𝐴1 + 𝐽2 𝐴2 +⋯𝐽𝑖𝐴𝑖
𝐴𝑠

Where:
Js = Mean flux for the total stack (pCi/m2-s)
Ji = Mean flux measured in region i (pCi/m2-s)
Ai = Area of region i (m2)
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At = Total area of the stack
3.1.8 Reporting. The results of individual flux measurements, the approximate locations on
the stack, and the mean radon flux for each region and the mean radon flux for the total stack
shall be included in the emission test report. Any condition or unusual event that occurred during
the measurements that could significantly affect the results should be reported.
4.0 Quality Assurance Procedures for Measuring Rn-222 Flux
A. SAMPLING PROCEDURES
Records of field activities and laboratory measurements shall be maintained. The following
information shall be recorded for each charcoal canister measurement:
(a) Site
(b) Name of pile
(c) Sample location
(d) Sample ID number
(e) Date and time on
(f) Date and time off
(g) Observations of meteorological conditions and comments
Records shall include all applicable information associated with determining the sample
measurement, calculations, observations, and comments.
B. SAMPLE CUSTODY
Custodial control of all charcoal samples exposed in the field shall be maintained in accordance
with EPA chain-of-custody field procedures. A control record shall document all custody
changes that occur between the field and laboratory personnel.
C. CALIBRATION PROCEDURES AND FREQUENCY
The radioactivity of two standard charcoal sources, each containing a carefully determined
quantity of radium-226 uniformly distributed through 180g of activated charcoal, shall be
measured. An efficiency factor is computed by dividing the average measured radioactivity of
the two standard charcoal sources, minus the background, in cpm by the known radioactivity of
the charcoal sources in dpm. The same two standard charcoal sources shall be counted at the
beginning and at the end of each day's counting as a check of the radioactivity counting
equipment. A background count using unexposed charcoal should also be made at the beginning
and at the end of each counting day to check for inadvertent contamination of the detector or
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other changes affecting the background. The unexposed charcoal comprising the blank is
changed with each new batch of charcoal used.
D. INTERNAL QUALITY CONTROL CHECKS AND FREQUENCY
The charcoal from every tenth exposed canister shall be recounted. Five percent of the samples
analyzed shall be either blanks (charcoal having no radioactivity added) or samples spiked with
known quantities of radium-226.
E. DATA PRECISION, ACCURACY, AND COMPLETENESS
The precision, accuracy, and completeness of measurements and analyses shall be within the
following limits for samples measuring greater than 1.0 pCi/m2−s.
(a) Precision: 10%
(b) Accuracy: ±10%
(c) Completeness: at least 85% of the measurements must yield useable results.
5.0 REFERENCES
(1) Hartley, J.N. and Freeman, H.D., “Radon Flux Measurements on Gardinier and Royster
phosphogypsum Piles Near Tampa and Mulberry, Florida,” U.S. Environmental Protection
Agency Report, EPA 520/5-85-029, January 1986.
(2) Environmental Protection Agency, “Indoor Radon and Radon Decay Product Measurement
Protocols”, EPA 520/1-89-009, U.S. Environmental Protection Agency, Washington, DC.
(1989).

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APPENDIX D
PHOTOGRAPHS
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2023 1st Quarter

2023 1st Quarter
2023 1st Quarter
2023 2nd Quarter

2023 2nd Quarter

2023 2nd Quarter
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2023 3rd Quarter 2023 3rd Quarter
2023 3rd Quarter
2023 4th Quarter
2023 4th Quarter 2023 4th Quarter