ML22279A989

Restoration Project - Final Status Survey Release Record North Protected Area Yard Survey Unit 12201C - Revision 2

ML22279A989
Person / Time
Site:	Summer, Zion  File:ZionSolutions icon.png
Issue date:	09/23/2022
From:	Graham J ZionSolutions
To:	Office of Nuclear Material Safety and Safeguards
Shared Package
ML22279A984	List: ML22279A985 ML22279A986 ML22279A987 ML22279A988 ML22279A989 ML22279A990 ML22279A991 ML22279A993
References
ZS-2022-043
Download: ML22279A989 (195)

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{{#Wiki_filter:ZION STATION RESTORATION PROJECT FINAL STATUS SURVEY RELEASE RECORD NORTH PROTECTED AREA YARD SURVEY UNIT 12201C REVISION 2

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C TABLE OF CONTENTS

1. EXECUTIVE

SUMMARY

................................................................................................... 7

2. SURVEY UNIT DESCRIPTION ......................................................................................... 7

3. CLASSIFICATION BASIS .................................................................................................. 8

4. DATA QUALITY OBJECTIVES (DQO) ........................................................................... 9

5. SURVEY DESIGN .............................................................................................................. 13

6. SURVEY IMPLEMENTATION........................................................................................ 19

7. SURVEY RESULTS............................................................................................................ 20

8. QUALITY CONTROL ....................................................................................................... 27

9. INVESTIGATIONS AND RESULTS ............................................................................... 27

10. REMEDIATION AND RESULTS ..................................................................................... 29

11. CHANGES FROM THE SURVEY PLAN ....................................................................... 29

12. DATA QUALITY ASSESSMENT (DQA) ........................................................................ 29

13. ANOMALIES....................................................................................................................... 30

14. CONCLUSION .................................................................................................................... 30

15. REFERENCES .................................................................................................................... 30

16. ATTACHMENTS ................................................................................................................ 31 ATTACHMENT 1 - FIGURE AND MAPS .......................................................................... 32 ATTACHMENT 2 - SCAN DATA ....................................................................................... 36 ATTACHMENT 3 - CONSULTATION TRIGGERS FOR RESIDENTIAL AND COMMERCIAL/INDUSTRIAL SOIL CONTAMINATION ............. 44 ATTACHMENT 4 - SIGN TEST .......................................................................................... 46 ATTACHMENT 5 - QC SAMPLE ASSESSMENT.............................................................. 48 ATTACHMENT 6 - GRAPHICAL PRESENTATIONS ...................................................... 50 ATTACHMENT 7 - GEL LABS CERTIFICATE OF ANALYSIS REPORTS .................... 57

[3]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C LIST OF TABLES Table 1 - Dose Significant Radionuclides and Mixture.......................................................................... 10 Table 2 - Base Case DCGLs for Surface Soils (BcDCGLSS) ................................................................ 11 Table 3 - Base Case DCGLs for Subsurface Soils (BcDCGLSB) .......................................................... 11 Table 4 - Operational DCGLs for Surface Soils (OpDCGLSS) ............................................................. 12 Table 5 - Operational DCGLs for Subsurface Soils (OpDCGLSB) ....................................................... 12 Table 6 - Surrogate Ratios ...................................................................................................................... 13 Table 7 - Investigation Levels ................................................................................................................ 15 Table 8 - Systematic Sample Measurement Locations ........................................................................... 17 Table 9 - Synopsis of Survey Design ..................................................................................................... 18 Table 10 - Instruments and Detectors ..................................................................................................... 20 Table 11 - Synopsis of Scan Results....................................................................................................... 20 Table 12 - Summary of Gamma Spectroscopy Results for Surface Soil Samples Comprising the Statistical Sample Population ................................................................................................................. 23 Table 13 - Summary of Gamma Spectroscopy Results for Subsurface Soil Samples............................ 24 Table 14 - Surrogate Ratio Analysis Results ......................................................................................... 24 Table 15 - Summary of Gamma Spectroscopy Results for QC Soil Samples ........................................ 25 Table 16 - Sum-of-Fractions for Individual Surface Soil Samples, when compared to the OpDCGLs (Systematic) ............................................................................................................................................ 26 Table 17 - Sum-of-Fractions for Individual Subsurface Soil Samples, when compared to the OpDCGLs

................................................................................................................................................................ 27 Table 18 - Sum-of-Fractions for Individual QC Soil Samples, when compared to the OpDCGLs ....... 27 Table 19 - Basic Statistical Properties of Systematic Sample Population .............................................. 27 Table 20 - Summary of Gamma Spectroscopy Results for Investigation Surface and Subsurface Soil Samples ................................................................................................................................................... 28 Table 21 - Sum-of-Fractions for Investigation Surface and Subsurface Soil Samples, when compared to the OpDCGLs ..................................................................................................................................... 29 LIST OF FIGURES Figure 1 - The The Five Class 1 Open Land Survey Units Created from the Original Class 2 Survey Unit 12201 ................................................................................................................................................ 8

[4]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C LIST OF ACRONYMS AND ABBREVIATIONS ALARA As Low As Reasonably Achievable AMCG Average Member of the Critical Group BcDCGL Base Case Soil DCGLs C/LT Characterization/License Termination CoC Chain-of-Custody cpm Counts per minute DCGL Derived Concentration Guideline Level DQA Data Quality Assessment DQO Data Quality Objective DRP Discrete Radioactive Particle EMC Elevated Measurement Comparison FOV Field of View FSS Final Status Survey GPS Global Positioning System HTD Hard to Detect HSA Historical Site Assessment IC Insignificant Dose Contributor ISOCS In Situ Object Counting System LBGR Lower Bound of the Gray Region LTP License Termination Plan MARSSIM Multi-Agency Radiation Survey and Site Investigation Manual MDC Minimum Detectable Concentration MDCR Minimum Detectable Count Rate NAD North American Datum NaI Sodium Iodide OpDCGL Operational Derived Concentration Guideline Level OpSOF Operational Sum-of-Fraction QAPP Quality Assurance Project Plan (for Characterization and FSS) [5]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C QC Quality Control RE Radiological Engineer ROC Radionuclides of Concern SOF Sum-of-Fraction TEDE Total Effective Dose Equivalent TSD Technical Support Documents UBGR Upper Bound of the Gray Region VSP Visual Sample Plan ZNPS Zion Nuclear Power Station ZSRP Zion Station Restoration Project [6]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C

1. EXECUTIVE

SUMMARY

Final Status Survey (FSS) was performed on this survey unit in September of 2019. Following the completion of this FSS, a concrete foundation structure was found in the survey unit that did not meet the requirement that all remaining structures be below 588 grade. Excavations were performed to remove this concrete. Because the geologic features of the survey unit significantly changed during the excavation, the FSS was reperformed following the completion of this work. This release record addresses the results of the reperformance of FSS. This FSS Release Record for Survey Unit 12201C, North Protected Area Yard, has been generated for the Zion Station Restoration Project (ZSRP) in accordance with ZionSolutions procedure ZS-LT-300-001-005, Final Status Survey Data Reporting (Reference 1) and satisfies the requirements of Section 5.11 of the Zion Station Restoration Project License Termination Plan (LTP) (Reference 2). A FSS package (L1-12201C-F Plan #2) was developed in accordance with ZionSolutions procedure ZS-LT-300-001-001, Final Status Survey Package Development (Reference 3), the ZSRP LTP, and guidance from NUREG-1575, Revision 1, Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM) (Reference 4). This open land survey unit has a MARSSIM classification of 1. The survey plan was designed based upon use of the Sign Test as the nonparametric statistical test for compliance. Both the Type I () and Type II () decision error rates were set at 0.05. Seventeen (17) systematic surface soil samples were acquired from the survey unit. In addition, surface scanning was performed on 100% of the total surface area in the survey unit. Numerous latch value readings were recorded in areas with elevated activity identified during the scans. One (1) of these readings was identified as a small piece of concrete. The piece was captured and removed from the survey unit. Investigations were performed into the remaining elevated readings. A detailed description of the investigations is included in Section 9. Investigation soil samples taken showed positive activity for Cs-137, with the highest Operational SOF (OpSOF) of 0.763. The analytical results for the systematic soil samples taken in Survey Unit 12201C indicate that the Sum-of-Fraction (SOF) for each sample, when compared to the Operational Derived Concentration Guideline Levels (OpDCGL), was less than 1.0, with a maximum Operational SOF (OpSOF) of 0.036. The mean OpSOF for the systematic samples was 0.016. The mean SOF (BcSOF), when the analytical results were compared to the Base Case DCGLs (BcDCGL), was 0.004, which results in a dose assigned to the survey unit of 0.103 mrem/yr. Therefore, the null hypothesis is rejected and survey unit 12201C is acceptable for unrestricted release.

2. SURVEY UNIT DESCRIPTION Survey Unit 12201C, North Protected Area Yard, is a Class 1 open land survey unit and is 1,968 m2 in size. It is bounded on the west by survey unit 12201B, the south by 12104 and 12205A, the east by 12201D, and the north by 10203D and 10203E.

[7]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C The boundary of the survey unit was defined using a Global Positioning System (GPS) based on the Illinois State Plane System North American Datum (NAD) 1983 East. The reference coordinates associated with the sample locations in this survey unit are presented in Table 8.

3. CLASSIFICATION BASIS Survey unit 12201C was classified in accordance with ZionSolutions procedure ZS-LT-300-001-002, Survey Unit Classification (Reference 5).

The area encompassing this survey unit is located within Survey Unit 10102 and the north portions of Survey Units 10103 and 10104 as identified in Figure 3 of the Zion Station Historical Site Assessment (HSA) (Reference 6). The Zion Station Restoration Project License Termination Plan (LTP) subsequently designated these areas as Survey Unit 12201, a Class 2 open land survey unit, and described it as the North Restricted Area Yard in Table 2-30 of the ZSRP LTP. On July 15, 2016, due to changing radiological and operational conditions brought about by site decommissioning activities inside or adjacent to this area, Survey Unit 12201 was reclassified as a Class 1, and divided into 5 survey units: 12201A, 12201B, 12201C, 12201D and 12201E. Figure 1 below shows the boundaries of the resulting Class 1 survey units. Figure 1 - The The Five Class 1 Open Land Survey Units Created from the Original Class 2 Survey Unit 12201 [8]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C A Final Status Survey of 12201C was completed in September of 2019 as a Class 1 survey unit. This classification remains applicable to this survey design. A Radiological Engineer (RE)/Characterization/License Termination (C/LT) Supervisor performed a visual inspection and walk-down of the survey unit on 5/31/2022 prior to performing this FSS. The purpose of the walk-down was to assess the physical condition of the survey unit, evaluate access points and travel paths and identify potentially hazardous conditions. A final classification assessment was performed in accordance with procedure ZS-LT-300-001-002, Survey Unit Classification as part of the survey design for FSS. The assessment confirmed that Survey Unit 12201C was correctly classified as Class 1.

4. DATA QUALITY OBJECTIVES (DQO)

FSS planning and design hinges on coherence with the Data Quality Objective (DQO) process to ensure, through compliance with explicitly defined inputs and boundaries, that the primary objective of the survey is satisfied. The DQO process is described in the LTP in accordance with MARSSIM. The appropriate design for a given survey is developed using the DQO process as outlined in Appendix D of MARSSIM. The DQO process incorporated hypothesis testing and probabilistic sampling distributions to control decision errors during data analysis. Hypothesis testing is a process based on the scientific method that compares a baseline condition to an alternate condition. The baseline condition is technically known as the null hypothesis. Hypothesis testing rests on the premise that the null hypothesis is true, and that sufficient evidence must be provided for rejection. In designing the survey plan, the underlying assumption, or null hypothesis was that residual activity in the survey unit exceeded the release criteria. Rejection of the null hypothesis would indicate that residual activity within the survey unit does not exceed the release criteria. Therefore, the survey unit would satisfy the primary objective of the FSS sample plan. The primary objective of the FSS sample plan is to demonstrate that the level of residual radioactivity in Survey Unit 12201C does not exceed the release criteria specified in the LTP and that the potential dose from residual radioactivity is As Low As Reasonably Achievable (ALARA). ZionSolutions Technical Support Document (TSD) 11-001, Potential Radionuclides of Concern during the Decommissioning of Zion Station (Reference 7), written in 2012, established the basis for an initial suite of potential ROC for the decommissioning of the Zion Nuclear Power Station (ZNPS). ZionSolutions TSD 14-019, Radionuclides of Concern for Soil and Basement Fill Model Source Terms (Reference 8), completed in February 2017, was written to refine the initial selection of ROC for decommissioning at ZSRP. The list of ROC was evaluated using Containment Building(s) and Auxiliary Building concrete core analysis data to evaluate the dose significance of each radionuclide in the end state model. Section 4.4 of the TSD evaluated the results of the [9]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C characterization data of surveys taken of soils. The following conclusion was reached: The results of surface and subsurface soil characterization in the impacted area surrounding Zion indicate that there is minimal residual radioactivity in soil. Essentially all of the soil results were reported as non-detectable. Other than Cs-137 at very low levels, and Co-60 at a concentration of 0.24 pCi/g in one sample, the results for all radionuclides were less than MDC. Therefore, the direct determination of radionuclide mixture fractions for initial suite radionuclides in soil is not technically feasible due to the MDC biasing issues discussed above. Based on a generalized assumption that the contaminated water that caused concrete contamination would be similar to the source of soil contamination, the ROC and radionuclide mixture derived for the Auxiliary Building concrete was considered to be reasonably representative of soils for FSS planning and implementation. The ROC for surface soils are listed in Table 1 below (From Table 5-2 of the LTP): Table 1 - Dose Significant Radionuclides and Mixture Auxiliary Building Radionuclide  % of Total Activity (normalized)(1)(2) Co-60 0.92% Ni-63 23.71% Sr-90 0.05% Cs-134 0.01% Cs-137 75.32% (1) Based on maximum percent of total activity from Table 20 of TSD 14-019, normalized to one for the dose significant radionuclides (2) Does not include dose significant radionuclides for activated concrete (H-3, Eu-152, Eu-154). A fundamental precursor to survey design is to establish a relationship between the release criteria and some measurable quantity. This is done through the development of DCGLs. The DCGLs represent average levels of radioactivity above background levels and are presented in terms of surface or mass activity concentrations. Chapter 6 of the LTP describes in detail the modeling used to develop the DCGLs for soils. Surface soil is defined as soil residing in the first 0.15 m (6 inches) layer of soil. A subsurface soil category, which is defined as a layer of soil beginning at the surface but extending to a depth of 1 m is also assessed to allow for flexibility in compliance demonstration if contamination deeper than 0.15 m is encountered. Site-specific DCGLs for soil were calculated for both the 0.15 m and 1 m thicknesses. Based on characterization data and historical information, there are no expectations of encountering a source term geometry that is comprised of a clean surface layer of soil over a contaminated subsurface soil layer. ZionSolutions TSD 14-011, Soil Area Factors (Reference 9) and LTP Chapter 6, Section 6.8 provides the exposure scenarios and [10]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C modeling parameters that were used to calculate the site-specific DCGLs for soils (referred to as BcDCGL in this Release Record). At ZNPS, compliance is demonstrated through the summation of dose from four distinct source terms for the end-state (basements, soils, buried pipe and groundwater). Basements are comprised of the summation of four structural source terms (surfaces, embedded pipe, penetrations, and fill). When applied to soil, the DCGLs are expressed in units of activity per unit of mass (pCi/g). The unity rule is applied when there is more than one ROC. The measurement results for each singular ROC present in the mixture are compared against their respective DCGL to derive a dose fraction. The surface and subsurface soil BcDCGLs for the unrestricted release of open land survey units are listed in Tables 5-5 and 5-6 of the LTP and are provided in Table 2 and Table 3, respectively. The Insignificant Contributor (IC) dose percentage of 10% was used to adjust the DCGLs in soils to account for the dose from the eliminated IC radionuclides. Table 2 - Base Case DCGLs for Surface Soils (BcDCGLSS) Surface Soil DCGL Radionuclide (pCi/g) Co-60 4.26 Cs-134 6.77 Cs-137 14.18 Ni-63 3,572.10 Sr-90 12.09 Table 3 - Base Case DCGLs for Subsurface Soils (BcDCGLSB) Subsurface Soil Radionuclide DCGL (pCi/g) Co-60 3.44 Cs-134 4.44 Cs-137 7.75 Ni-63 763.02 Sr-90 1.66 Each radionuclide-specific Base Case DCGL is equivalent to the level of residual radioactivity (above background levels) that could, when considered independently, result in a Total Effective Dose Equivalent (TEDE) of 25 mrem per year to an Average Member of the Critical Group (AMCG). To ensure that the summation of dose from each source term is 25 mrem/yr or less after all FSS is completed, the BcDCGLs are reduced based on an expected, or a priori, fraction [11]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C of the 25 mrem/yr dose limit from each source term. The reduced DCGLs, or Operational DCGLs can be related to the BcDCGLs as an expected fraction of dose based on an a priori assessment of what the expected dose should be based on the results of site characterization, process knowledge and the extent of planned remediation. The OpDCGL is then used as the DCGL for the FSS design of the survey unit (calculation of surrogate DCGLs, investigations levels, etc.). Details of the OpDCGLs derived for each dose component and the basis for the applied a priori dose fractions are provided in ZionSolutions TSD 17-004, Operational Derived Concentration Guideline Levels for Final Status Survey (Reference 10) The OpDCGLs for the FSS of surface and subsurface soils are listed in Tables 5-7 and 5-8 of the LTP and are presented in Table 4 and Table 5, respectively. Table 4 - Operational DCGLs for Surface Soils (OpDCGLSS) Surface Soil DCGL Radionuclide (pCi/g) Co-60 1.091 Cs-134 1.733 Cs-137 3.630 Ni-63 914.458 Sr-90 3.095 Table 5 - Operational DCGLs for Subsurface Soils (OpDCGLSB) Subsurface Soil Radionuclide DCGL (pCi/g) Co-60 0.881 Cs-134 1.137 Cs-137 1.984 Ni-63 195.333 Sr-90 0.425 In accordance with NUREG-1757, Appendix G, if the HSA indicates that there is no likelihood of substantial subsurface residual radioactivity, subsurface surveys are not necessary. The HSA as well as the results of the extensive characterization of subsurface soils in the impacted area surrounding the Zion facility have shown that there is minimal residual radioactivity in subsurface soil. Consequently, Zion proposes to perform minimal subsurface sampling during FSS. Instrument DQOs included a verification of the ability of the survey instrument to detect the radiation(s) of interest at the required scan MDC, which for Class 1 Open Land survey units, is the a priori elevated measurement comparison DCGL (DCGLEMC). Survey instrument response [12]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C checks were required prior to issuance and after the instrument had been used. Control and accountability of survey instruments was required to ensure the quality and prevent the loss of data. As part of the DQOs applied to laboratory processes, analysis results were reported as actual calculated results. The actual recorded value was used as the recorded FSS result for measurement and/or sample values that are less than MDC. Negative values were recorded as zero. Results were not reported as less than MDC. Sample report summaries included unique sample identification, analytical method, radionuclide, result, uncertainty, laboratory data qualifiers, units, and the observed MDC. In accordance with the LTP, for laboratory analysis, MDCs less than 10% of the Operational DCGL were preferable while MDCs up to 50% of the Operational DCGL were acceptable. The maximum acceptable MDC for measurements obtained using field instruments was the a priori DCGLEMC, which was calculated using the methodology described in the LTP, Section 5.6.4.3.

5. SURVEY DESIGN The level of effort associated with planning a survey is based on the complexity of the survey and nature of the hazards. Guidance for preparing FSS plans is provided in procedure ZS-LT-300-001-001 Final Status Survey Package Development.

The DQO process determined that Co-60, Ni-63, Sr-90, Cs-134 and Cs-137 would be the ROC in survey unit 12201C. During FSS, concentrations for HTD ROC Ni-63 and Sr-90 are inferred using a surrogate approach. Cs-137 is the principal surrogate radionuclide for Sr-90 and Co-60 is the principal surrogate radionuclide for Ni-63. The mean, maximum and 95% Upper Confidence Level (UCL) of the surrogate ratios for concrete core samples taken in the Auxiliary Building basement were calculated in ZionSolutions TSD 14-019, Radionuclides of Concern for Soil and Basement Fill Model Source Terms and are presented in Table 6. The maximum ratios will be used in the surrogate calculations during FSS unless area specific ratios are determined by continuing characterization. Table 6 - Surrogate Ratios Auxiliary Building Ratios Mean Max 95%UCL Ni-63/Co-60 44.143 180.450 154.632 Sr-90/Cs-137 0.001 0.002 0.002 For the FSS of survey unit 12201C, the surrogate OpDCGLs for Co-60 and Cs-137 were computed based on the maximum ratios from Table 6. The equation for calculating a surrogate DCGL is as follows: [13]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Equation 1 1

                     =

1 2 3 [( ) + ( ) + ( ) + ( )] 2 3 Where: DCGLSur = Surrogate radionuclide DCGL DCGL2,3n = DCGL for radionuclides to be represented by the surrogate Rn = Ratio of concentration (or nuclide mixture fraction) of radionuclide n to surrogate radionuclide Using the OpDCGLs for surface soils presented in Table 4 and the maximum ratios from Table 6, the following surrogate calculations for surface soils were performed: Equation 2 1 (137) = = 3.622 / 1 0.002 [(3.630 )+( )] (137) 3.095 (90) The surrogate Op DCGL for surface soils that was used for Cs-137 in this survey unit for direct comparison of surface soil sample results to demonstrate compliance is 3.622 pCi/g. Equation 3 1 (60) = = 0.898 / 1 180.45 [(1.091 )+( )] (60) 914.458 (63) The surrogate OpDCGL for surface soils that was used for Co-60 in this survey unit for direct comparison of surface soil sample results to demonstrate compliance is 0.898 pCi/g. Using the BcDCGLs presented in Table 2 and the maximum ratios from Table 6, the following surrogate calculations were performed: Equation 4 1 (137) = = 14.15 / 1 0.002 [(14.18 )+( )] (137) 12.09 (90) [14]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C The surrogate BcDCGL for surface soils that was used for Cs-137 in this survey unit for calculating the DCGLEMC is 14.15 pCi/g. Equation 5 1 (60) = = 3.51 / 1 180.45 [(4.26 )+( )] (60) 3572.10 (63) The surrogate BcDCGL for surface soils that was used for Co-60 in this survey unit for calculating the DCGLEMC is 3.51 pCi/g. For this Class 1 open land survey unit, the Investigation Levels for area scanning and soil sample measurement results are those levels specified in LTP Chapter 5, Table 5-25 and are reproduced below in Table 7. Table 7 - Investigation Levels Direct Investigation Classification Scan Investigation Levels Levels

                            >Operational DCGL or >MDCscan if Class 1                                                       > Operational DCGL MDCscan is greater than Operational DCGL The MDCscan for the 2350-1/44-10 was calculated using the methodology of TSD-11-004, Ludlum Model 44-10 Detector Sensitivity (Reference 11) with the following parameters:

• background count rate of 5500 counts per minute (cpm)
• scan speed of 0.25 m/sec
• distance from detector to surface of 2
• isotopic mix of 95% Cs-137 and 5% Co-60 The calculated MDCscan value was 2.78 pCi/g, which was greater than the calculated Surrogate DCGLs, therefore the scan investigation level was set at the MDCscan of the 2350-1/44-10. The collimator was not used during the scan surveys.

The Sign Test was selected as the non-parametric statistical test. The use of the Sign Test did not require the selection or use of a background reference area, which simplified survey design and implementation. This approach was conservative since it included background Cs-137 as part of the sample set. The number of soil samples for FSS was determined in accordance with procedure ZS-LT-300-001-001 Final Status Survey Package Development. The relative shift (/) for the survey unit data set is defined as shift (), which is the Upper Bound of the Gray Region (UBGR), or the DCGL (SOF of 1) minus the Lower Bound of the Gray Region (LBGR) (SOF of 0.5), divided by sigma (), which is the standard deviation of the data set used for survey design. The optimal value for / should range between 1 and 3. The largest value the / can have is 3. If the / [15]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C exceeds 3, then the value of 3 will be used for /. For this survey design, a conservative estimate of the sample variability of 0.30 was used as the coefficient of variation to calculate /. The calculated relative shift was 1.67. Both the Type I error, or value and the Type II error, or value was set at 0.05. The sample size from Table 5.5 of MARSSIM that equates to the Type I and Type II error of 0.05 for use with the Sign Test is an N value of 17. VSP was used to generate the sample map, in accordance with ZS-LT-300-001-001. The map used was provided by the Survey Mapping/CAD Specialist, with coordinates based on the NAD standard topographical grid coordinate system. The number of samples generated by VSP for a systematic triangular grid was 17. The Prospective Power Curve generated by VSP showed adequate power for the survey design. In accordance with Section 5.6.4.3 of the LTP, the a priori DCGLEMC values were calculated for the gamma emitting ROC to ensure that the MDCSCAN of the selected instrument was sufficient to detect small areas of elevated activity in the survey unit. The calculations were: 1968

• To calculate the area bounded by the systematic samples: = = = 115.8 2 17
• From the LTP, Table 5-16, the Area Factors for the next larger area, 300 m2 area were used:

o Cs-137 - 1.46 o Cs-134 - 1.30 o Co 1.16

• The DCGLEMC is the Surrogate Base Case DCGL times the Area Factor:

o The DCGLEMC for Cs-137 = 1.46 14.15 = 20.66 / o The DCGLEMC for Cs-134 - 1.30 6.77 = 8.80 / o The DCGLEMC for Co 1.16 3.51 = 4.07 / The calculated MDCSCAN, 2.78 pCi/g, is less than the DCGLEMC values calculated above, therefore, the spacing of the statistical systematic sampling and measurement locations was adequate to detect small areas of elevated radioactivity. No adjustment to the sample number was required. The implementation of quality control measures as referenced by LTP Chapter 5, Section 5.9 and ZionSolutions ZS-LT-01, Quality Assurance Project Plan (for Characterization and FSS) (QAPP) (Reference 12) includes the collection of a soil sample for split sample analysis on 5% of the soil samples taken in a survey unit with the locations selected at random. One (1) surface soil sample, L1-12201C-FQGS-202-SS was selected randomly for split sample analysis for the FSS of this survey unit. In accordance with Section 5.7.1.6.2 of the LTP, a subsurface soil sample was taken at 10% of the systematic surface soil sample locations in the survey unit with the location(s) selected at random. Locations L1-12201C-FSGS-204-SB and L1-12201C-FSGS-208-SB were selected for this survey unit. [16]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C The locations of the seventeen (17) systematic samples are listed in Table 8. Note, samples were numbered starting with 201. This is because systematic sample numbers 1 to 17 were used in the previous FSS of this survey unit. A map of the systematic sample locations is included in Attachment 1. Table 8 - Systematic Sample Measurement Locations NORTHING EASTING MEASUREMENT ID (meters) (meters) L1-12201C-FSGS-201-SS 641845.68 343688.32 L1-12201C-FSGS-202-SS 641855.70 343682.54 L1-12201C-FSGS-203-SS 641855.70 343694.10 L1-12201C-FSGS-204-SS 641865.71 343676.76 L1-12201C-FSGS-205-SS 641865.71 343688.32 L1-12201C-FSGS-206-SS 641865.71 343699.88 L1-12201C-FSGS-207-SS 641875.72 343682.54 L1-12201C-FSGS-208-SS 641875.72 343694.10 L1-12201C-FSGS-209-SS 641885.74 343688.32 L1-12201C-FSGS-210-SS 641885.74 343699.88 L1-12201C-FSGS-211-SS 641895.75 343694.10 L1-12201C-FSGS-212-SS 641895.75 343705.66 L1-12201C-FSGS-213-SS 641905.76 343688.32 L1-12201C-FSGS-214-SS 641905.76 343699.88 L1-12201C-FSGS-215-SS 641905.76 343711.44 L1-12201C-FSGS-216-SS 641915.77 343694.10 L1-12201C-FSGS-217-SS 641915.77 343705.66 ZSRP LTP Chapter 5, Section 5.1 states that soil samples will be collected during FSS to confirm the HTD to surrogate radionuclide ratios (Table 6). Ten percent (10%) of the FSS samples collected from open land survey units will be analyzed for HTD ROC. Only HTD radionuclides included as ROC (Ni-63 and Sr-90 for soils) will be analyzed in the FSS confirmatory samples. For soil samples with positive results for both a HTD ROC and the corresponding surrogate radionuclide (Cs-137 or Co-60), the HTD surrogate ratio will be derived and compared against the maximum ratio (see Table 6). The maximum ratios (Table

6) will be used unless specific survey information supports the use of a surrogate ratio that is specific to the area. In these cases, the survey unit-specific radiological data and the derived surrogate ratios will be submitted to the NRC for approval. If approved, then the survey unit-specific ratios used and the survey data serving as the basis for the surrogate ratios will be documented in the release record for the survey unit.

In addition, LTP Chapter 5, Section 5.1 states that if levels of residual gamma radioactivity in an individual soil sample exceed an OpSOF of 0.1, then the sample(s) will be analyzed for HTD ROC. [17]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C No systematic or investigation soil sample exceeded an OpSOF of 0.1. Three (3) soil samples were chosen to be analyzed for HTD. Each sample was sent off-site (GEL Laboratories) for HTD analysis as specified in the FSS Sample Plan. The following samples were selected: L1-12201C-FIGS-201-SS, L1-12201C- FIGS-201-SB, L1-12201C-FIGS-202-SS. Table 9 provides a synopsis of the survey design for survey unit 12201C. Table 9 - Synopsis of Survey Design FEATURE DESIGN CRITERIA BASIS Survey Unit Area 1,968 m2 GPS measurements of area

                                                                      *   = 0.30

• UBGR = SOF of 1
• LBGR = SOF of 0.5 Number of Surface 17 (Systematic)
• Type I error = 0.05 Soil Samples
• Type II error = 0.05

                                                                      *  / = 1.67 (MARSSIM Table 5.5)

(LTP Chapter 5, Section Grid Spacing 11.6 m 5.6.4.5.2)

• Co 1.091 pCi/g
• Cs-134 - 1.733 pCi/g Operational DCGLs for Surface DCGLs
• Cs-137 - 3.630 pCi/g Soils, (LTP Chapter 5, Table 5-7)
• Ni 914.458 pCi/g
• Sr 3.095 pCi/g HTD Analysis A minimum of two (2) soil samples (LTP Chapter 5, section 5.1) selected for HTD ROC analysis Measurement Operational DCGL (LTP Chapter 5, Table 5-25)

Investigation Level Scan Survey Area 100% (LTP Chapter 5, Table 5-24) Coverage One (1) surface soil sample selected QC (LTP Chapter 5, Section 5.9) randomly for split sample analysis Number of Two (2) systematic surface soil sample (LTP Chapter 5, Section Subsurface Soil locations selected randomly 5.7.1.6.2) Samples [18]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C

6. SURVEY IMPLEMENTATION Survey instructions for this FSS were incorporated into and performed in accordance with FSS Sample Plan L1-12201C-F Plan #2, which was developed in accordance with ZionSolutions procedure ZS-LT-300-001-001, Final Status Survey Package Development. The FSS unit was inspected and controlled in accordance with ZionSolutions procedure ZS-LT-300-001-003, Isolation and Control for Final Status Survey (Reference 13).

For survey unit 12201C, compliance with the unrestricted release criteria was demonstrated through a combination of surface scanning with a Ludlum Model 44-10 gamma detector and the sampling of surface soil for isotopic analysis. In accordance with the LTP Chapter 5, two (2) subsurface samples were obtained. Also, if during the performance of FSS, the analysis of a surface soil sample, or the results of a surface gamma scan indicated the potential presence of residual radioactivity at a concentration of 75% of the subsurface Operational DCGL, then a biased subsurface soil sample(s) would be taken to the appropriate depth within the area of concern as part of the investigation. This threshold was encountered during the FSS of survey unit 12201C during the surface scans. Numerous scan alarms were recorded during the gamma walkover survey. The areas showing activity above the Action Level were marked. QC gamma walkover scans were performed of these areas, and additional investigation soil samples were taken. A detailed discussion of these surveys/samples are included in Section 9 (Investigations and Results). FSS field activities were conducted under FSS Sample Plan L1-12201C-F Plan #2. A Field Log (ZS-LT-300-001-001 Attachment 14) was used to document field activities and other information pertaining to the performance of the FSS. FSS field activities were projected to take four (4) working days to complete. Daily briefings were conducted to discuss the expectations for job performance and to review safety aspects of the job. The survey required field activities were performed during normal working hours starting on June 14, 2022 and concluding on July 12, 2022. The seventeen (17) systematic surface soil sample locations were measured, using XY coordinates provided by VSP, from the southwest corner of the survey unit and marked with flags. Gamma scans were performed on 100% of the surface area of the survey unit using a Ludlum 2350-1 paired with a Model 44-10 (2x 2) NaI detector operated in the rate-meter mode and using audio response. The probe was positioned within 2 to the ground and was moved at a scan speed of approximately 0.25 meters per second. Numerous areas of elevated activity were detected on the scans (see Section 9 for further discussion). Daily prior to use and daily following use, each detector was subjected to an Operational Response Check in accordance with procedure ZS-RP-108-004-011, Operation of the Ludlum Model 2350-1 Data Logger (Reference 14). The Daily Operational Response Check compared the background response and the response to [19]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C check sources ranges established for normal background and detector source response to ensure that the detector was working properly. The instruments and detectors used for this survey are presented in Table 10. The instruments and detectors were verified to be properly calibrated prior to use. Table 10 - Instruments and Detectors Instrument/Detector Type Serial # Calibration Due Date Ludlum 2350-1/Ludlum 44-10 117578/PR157372 11/4/2022 Ludlum 2350-1/Ludlum 44-10 126218/PR226943 11/4/2022 Ludlum 2350-1/Ludlum 44-10 304712/PR372143 8/6/2022 Ludlum 2350-1/Ludlum 44-10 216188/RN25063 11/4/2022 Ludlum 2350-1/Ludlum 44-10 126209/PR192598 11/4/2022 Ludlum 2350-1/Ludlum 44-10 304708/PR321892 6/7/2023 In accordance with the survey design, seventeen (17) surface soil samples were collected at the designated systematic sample points. In addition, two (2) subsurface samples and one (1) QC sample were collected at the randomly selected systematic sample locations. Seven (7) investigation soil samples were collected at locations identified as elevated activity on the surface scans: five (5) surface samples, one (1) QC surface sample and one (1) subsurface sample. Three (3) samples were selected for HTD radionuclide analysis.

7. SURVEY RESULTS One hundred percent (100%) of the surface of the survey unit was scanned for elevated radiation levels. Seventy-four (67) 1-m wide scan rows, as shown on the map in Attachment 1, were marked in the field and scanned with the 2350-1/44-10 using latching mode. Readings were recorded at approximately 10-meter intervals during the scans. Numerous elevated measurement locations were identified by surface scan. Table 11 provides an overview of the scan results.

Complete scan results are provided in Attachment 2. Table 11 - Synopsis of Scan Results Highest Logged Action Level(1) # of Scan Scan Row Reading Investigation Samples (cpm) Alarms (cpm) 1 1 5416 5510 None 2 2 5476 5510 None 3 3 5401 5510 None 4 4 5404 5510 None 5 5 5440 5510 None 6 6 5405 5510 None 7 7 5374 5510 None [20]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Table 11 (continued) - Synopsis of Scan Results Highest Logged Action Level(1) # of Scan Scan Row Reading Investigation Samples (cpm) Alarms (cpm) 8 5302 5510 0 9 5273 5510 0 10 5482 5510 0 11 5305 5510 0 12 5408 5510 0 13 5492 5510 0 14 5063 5385 0 15 5167 5385 0 16 5228 5385 0 17 5351 5385 0 18 5300 5385 0 19 7359 5510 2 20 8079 6478 2 50k concrete piece found 21 10365 6478 2 L1-12201C-FIGS-201-SS, L1-12201C-FIGS-201-SB, and L1-12201C-QIGS-201-SS 22 5262 5297 0 23 5127 5297 0 24 5248 5309 0 25 5282 5309 0 26 5265 5297 0 27 5228 5309 0 28 5210 5309 0 29 5246 5309 0 30 5250 5309 0 31 5211 5309 0 32 5244 5297 0 33 5182 5309 0 34 5275 5309 0 35 5078 5309 0 36 5902 6135 0 37 5987 6135 0 38 5894 6135 0 39 6126 6135 0 40 5648 6135 0 41 6016 6135 0 42 5700 6135 0 L1-12201C-FIGS-202SS, 43 7913 6102 2 L1-12201C-FIGS-203SS [21]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Table 11 (continued) - Synopsis of Scan Results Highest Logged Action Level(1) # of Scan Scan Row Reading Investigation Samples (cpm) Alarms (cpm) 44 6092 6135 0 45 5782 6135 0 46 5984 6135 0 47 6104 6135 0 48 6035 6135 0 49 6031 6135 0 50 6077 6102 0 51 6229 6300 0 52 6722 5780 1 53 7749 5780 1 54 7746 5780 4 55 7866 5780 1 L1-12201C-FIGS-204SS 56 8087 5780 1 57 8506 5780 1 58 9709 5780 2 L1-12201C-FIGS-205SS 59 8348 5740 1 60 8389 5740 1 61 8270 5740 1 62 6471 5740 1 63 5561 5787 0 64 5711 5787 0 65 5592 5787 0 66 5507 5553 0 67 5486 5553 0 68 5536 5553 0 69 5455 5553 0 70 5381 5553 0 71 5521 5553 0 72 5400 5553 0 73 5462 5553 0 74 5348 5553 0 The action level is based on the measurement Minimum Detectable Count Rate Note 1: (MDCR) plus background in accordance with the FSS plan Seventeen (17) systematic surface soil samples taken for non-parametric statistical testing, five (5) investigation surface soil samples, two (2) QC soil samples, and three (3) subsurface soil samples were sent off-site to be analyzed by GEL Laboratories. Summaries of the sample analysis results for the systematic sample population are provided in Tables 12 and 13, respectively. The basic statistics for the systematic sample population are summarized in Table [22]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C

19. The gamma spectroscopy results revealed four (4) samples with activity levels above MDA for Cs-137, and no samples with activity levels above MDA for Cs-134 or Co-60. The concentration for Ni-63 and Sr-90 are inferred based on the maximum ratios as specified in Table

6. The mean of the gamma spectroscopic analysis results for the sample population indicated that Cs-137 was present at levels lower than the concentrations of Cs-137 expected to be found in off-site soil in the vicinity of the ZNPS as presented in ZionSolutions TSD 13-004, Examination of Cs-137 Global Fallout in Soils at Zion Station (Reference 15). The complete gamma spectroscopy reports are presented in Attachment 7.

Table 12 - Summary of Gamma Spectroscopy Results for Surface Soil Samples Comprising the Statistical Sample Population Co-60(1) Cs-134(1) Cs-137(1) Ni-63(2) Sr-90(2) MEASUREMENT ID (pCi/g) (pCi/g) (pCi/g) (pCi/g) (pCi/g) L1-12201C-FSGS-201-SS 1.12E-02 0.00E+00 1.76E-02 2.02E+00 3.52E-05 L1-12201C-FSGS-202-SS 8.05E-03 7.74E-03 7.49E-03 1.45E+00 1.50E-05 L1-12201C-FSGS-203-SS 3.47E-03 0.00E+00 0.00E+00 6.26E-01 0.00E+00 L1-12201C-FSGS-204-SS 0.00E+00 7.17E-03 1.03E-02 0.00E+00 2.06E-05 L1-12201C-FSGS-205-SS 0.00E+00 2.74E-02 0.00E+00 0.00E+00 0.00E+00 L1-12201C-FSGS-206-SS 0.00E+00 2.33E-02 2.44E-03 0.00E+00 4.88E-06 L1-12201C-FSGS-207-SS 1.94E-03 2.49E-02 8.68E-03 3.50E-01 1.74E-05 L1-12201C-FSGS-208-SS 1.13E-02 0.00E+00 0.00E+00 2.04E+00 0.00E+00 L1-12201C-FSGS-209-SS 9.39E-03 0.00E+00 3.64E-03 1.69E+00 7.28E-06 L1-12201C-FSGS-210-SS 7.20E-03 3.20E-03 1.65E-02 1.30E+00 3.30E-05 L1-12201C-FSGS-211-SS 6.53E-03 1.50E-02 3.20E-02 1.18E+00 6.40E-05 L1-12201C-FSGS-212-SS 0.00E+00 4.61E-03 1.57E-02 0.00E+00 3.14E-05 L1-12201C-FSGS-213-SS 4.73E-03 1.68E-02 2.72E-02 8.54E-01 5.44E-05 L1-12201C-FSGS-214-SS 0.00E+00 2.92E-03 1.18E-02 0.00E+00 2.36E-05 L1-12201C-FSGS-215-SS 1.75E-02 5.69E-03 0.00E+00 3.16E+00 0.00E+00 L1-12201C-FSGS-216-SS 1.41E-02 9.25E-03 9.25E-03 2.54E+00 1.85E-05 L1-12201C-FSGS-217-SS 1.57E-02 5.35E-04 6.60E-02 2.83E+00 1.32E-04 Note: (1) Bold font indicates ROC positively detected at concentration greater than MDC. (2) Ni-63 and Sr-90 are inferred concentrations using the maximum HTD ratio. [23]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Table 13 - Summary of Gamma Spectroscopy Results for Subsurface Soil Samples Co-60(1) Cs-134(1) Cs-137(1) Ni-63(2) Sr-90(2) MEASUREMENT ID (pCi/g) (pCi/g) (pCi/g) (pCi/g) (pCi/g) L1-12201C-FSGS-204-SB 9.49E-03 0.00E+00 0.00E+00 1.71E+00 0.00E+00 L1-12201C-FSGS-208-SB 1.20E-02 2.92E-02 2.17E-02 2.17E+00 4.34E-05 Note: (1) Bold font indicates ROC positively detected at concentration greater than MDC. (2) Ni-63 and Sr-90 are inferred concentrations using the maximum HTD ratio. The off-site laboratory, GEL Laboratories, processed a total of three (3) samples selected for HTD ROC analysis. Three (3) investigation sample were selected for having an OpSOF > 0.1. The following samples were selected:

1. L1-12201C-FIGS-201-SS

2. L1-12201C-FIGS-201-S

3. L1-12201C-QIGS-201-SS Calculations of the surrogate ratios listed in Table 6 for HTD radionuclides included as ROC (Ni-63 and Sr-90 for soils) are included in the following table. All analyses met the required MDC. Only Cs-137 was positively detected in each of the samples at a concentration greater than MDC. Consequently, comparison of existing ratios verses the maximum ratios from Table 6 was not required. The results are provided in Table 14.

Table 14 - Surrogate Ratio Analysis Results Sample # L1-12201C-FIGS-201-SS Result Uncertainty MDC ROC >MDC (pCi/g) (pCi/g) (pCi/g) Co-60 7.84E-03 1.74E-02 3.61E-02 No Cs-134 1.00E-02 1.71E-02 3.61E-02 No Cs-137 1.87E+00 9.44E-02 3.01E-02 Yes Ni-63 -1.34E-01 5.28E+00 9.17E+00 No Sr-90 1.82E-02 2.36E-02 4.03E-02 No Sample # L1-12201C-FIGS-201-SB Result Uncertainty MDC ROC >MDC (pCi/g) (pCi/g) (pCi/g) Co-60 1.25E-02 3.03E-02 6.07E-02 No Cs-134 -5.48E-03 2.27E-02 4.37E-02 No Cs-137 1.33E+00 1.11E-01 4.40E-02 Yes Ni-63 -3.74E-01 5.00E+00 8.70E+00 No Sr-90 -6.99E-03 1.98E-02 4.01E-02 No [24]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Sample # L1-12201C-QIGS-201-SS Result Uncertainty MDC ROC >MDC (pCi/g) (pCi/g) (pCi/g) Co-60 1.49E-02 1.84E-02 4.17E-02 No Cs-134 -5.84E-03 1.93E-02 3.56E-02 No Cs-137 2.08E+00 1.08E-01 3.76E-02 Yes Ni-63 1.26E+00 5.55E+00 9.55E+00 No Sr-90 6.94E-03 1.88E-02 3.35E-02 No The implementation of survey specific QC measures included the collection of one (1) systematic sample (L1-12201C-FQGS-202-SS) and one (1) biased sample (L1-12201C-QIGS-201-SS) for split sample analysis. GEL Laboratories analyzed the designated QC samples. Gamma spectroscopy results (summarized in Table 15) indicate that the concentration of Cs-137 was above MDC in one sample, and concentrations of Co-60 and Cs-134 were less than MDC in both samples. The concentration for Ni-63 and Sr-90 are inferred based on the maximum ratios as specified in Table 6. Table 15 - Summary of Gamma Spectroscopy Results for QC Soil Samples Co-60(1) Cs-134(1) Cs-137(1) Ni-63(2) Sr-90(2) MEASUREMENT ID (pCi/g) (pCi/g) (pCi/g) (pCi/g) (pCi/g) L1-12201C-FQGS-202-SS 3.18E-02 7.75E-03 9.76E-03 5.74E+00 1.95E-05 L1-12201C-QIGS-201-SS 2.47E-03 1.05E-02 2.07E+00 4.46E-01 4.14E-03 Note: (1) Bold font indicates ROC positively detected at concentration greater than MDC. (2) Ni-63 and Sr-90 are inferred concentrations using the maximum HTD ratio. The sample plan also directed that 5% of the survey unit area be surveyed for QC by gamma walkover scans, with the area to be selected by the RE. Four (4) rows were selected for the QC scans. These consisted of rows with sections that had scan readings above the Action Level on the initial survey. QC scan surveys were documented on survey 22-0143. The area covered was approximately 100 m2, 5.1% of the survey unit. All areas identified as elevated on the initial scans were confirmed on the QC scans. An additional area in the center section of row #43 was identified as elevated on the QC scan. This location was marked for an investigation sample. The SOF or unity rule is the mathematical test used to evaluate compliance with radiological criteria for license termination when more than one radionuclide has been determined to be potentially present. The equation for the unity rule is: Equation 6 [25]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C C1 C2 Cn

                      +           +............          1 DCGL1 DCGL2                        DCGLn Where:     Cn           = concentration of radionuclide n DCGLn        = DCGL of radionuclide n.

The results of the unity rule calculation for the ROC in the systematic sample population when compared against the OpDCGLs for surface soils for survey unit 12201C are provided in Table

16. The results of the unity rule calculation for the ROC for the subsurface samples are provided in Table 17 and the results for the QC sample are presented in Table 18.

Table 16 - Sum-of-Fractions for Individual Surface Soil Samples, when compared to the OpDCGLs (Systematic) Fraction of the OpDCGLs for Surface Soils MEASUREMENT ID OpSOF Co-60 Cs-134 Cs-137 Ni-63 Sr-90 L1-12201C-FSGS-201-SS 1.03E-02 0.00E+00 4.85E-03 2.21E-03 1.14E-05 0.017 L1-12201C-FSGS-202-SS 7.38E-03 4.47E-03 2.06E-03 1.59E-03 4.84E-06 0.016 L1-12201C-FSGS-203-SS 3.18E-03 0.00E+00 0.00E+00 6.85E-04 0.00E+00 0.004 L1-12201C-FSGS-204-SS 0.00E+00 4.14E-03 2.84E-03 0.00E+00 6.66E-06 0.007 L1-12201C-FSGS-205-SS 0.00E+00 1.58E-02 0.00E+00 0.00E+00 0.00E+00 0.016 L1-12201C-FSGS-206-SS 0.00E+00 1.34E-02 6.72E-04 0.00E+00 1.58E-06 0.014 L1-12201C-FSGS-207-SS 1.78E-03 1.44E-02 2.39E-03 3.83E-04 5.61E-06 0.019 L1-12201C-FSGS-208-SS 1.04E-02 0.00E+00 0.00E+00 2.23E-03 0.00E+00 0.013 L1-12201C-FSGS-209-SS 8.61E-03 0.00E+00 1.00E-03 1.85E-03 2.35E-06 0.011 L1-12201C-FSGS-210-SS 6.60E-03 1.85E-03 4.55E-03 1.42E-03 1.07E-05 0.014 L1-12201C-FSGS-211-SS 5.99E-03 8.66E-03 8.82E-03 1.29E-03 2.07E-05 0.025 L1-12201C-FSGS-212-SS 0.00E+00 2.66E-03 4.33E-03 0.00E+00 1.01E-05 0.007 L1-12201C-FSGS-213-SS 4.34E-03 9.69E-03 7.49E-03 9.33E-04 1.76E-05 0.022 L1-12201C-FSGS-214-SS 0.00E+00 1.68E-03 3.25E-03 0.00E+00 7.63E-06 0.005 L1-12201C-FSGS-215-SS 1.60E-02 3.28E-03 0.00E+00 3.45E-03 0.00E+00 0.023 L1-12201C-FSGS-216-SS 1.29E-02 5.34E-03 2.55E-03 2.78E-03 5.98E-06 0.024 L1-12201C-FSGS-217-SS 1.44E-02 3.09E-04 1.82E-02 3.10E-03 4.26E-05 0.036 Systematic Measurements Number of Systematic Measurements = 17

                                                  # of Systematic Measurements with OpSOF > 1 =    0
                      # of Systematic Measurements with OpSOF > 0.1 (HTD Assessment) =             0 Max Individual Systematic Measurement OpSOF =   0.036 Mean Systematic Measurement OpSOF =    0.016

[26]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Table 17 - Sum-of-Fractions for Individual Subsurface Soil Samples, when compared to the OpDCGLs Fraction of the OpDCGLs for Subsurface Soils MEASUREMENT ID OpSOF Co-60 Cs-134 Cs-137 Ni-63 Sr-90 L1-12201C-FSGS-204-SB 1.08E-02 0.00E+00 0.00E+00 8.77E-03 0.00E+00 0.020 L1-12201C-FSGS-208-SB 1.36E-02 2.57E-02 1.09E-02 1.11E-02 1.02E-04 0.061 Table 18 - Sum-of-Fractions for Individual QC Soil Samples, when compared to the OpDCGLs Fraction of the OpDCGLs for Surface soils MEASUREMENT ID OpSOF Co-60 Cs-134 Cs-137 Ni-63 Sr-90 L1-12201C-FQGS-202-SS 2.91E-02 4.47E-03 2.69E-03 6.28E-03 6.31E-06 0.043 L1-12201C-QIGS-201-SS Table 19 - Basic Statistical Properties of Systematic Sample Population Mean Median Max Min BcDCGL Avg. SOF Avg. Dose ROC Std. Dev. (pCi/g) (pCi/g) (pCi/g) (pCi/g) (pCi/g) per ROC Per ROC Co-60 6.54E-03 6.53E-03 1.75E-02 0.00E+00 0.006 4.26 1.53E-03 3.84E-02 Cs-134 8.74E-03 5.69E-03 2.74E-02 0.00E+00 0.009 6.77 1.29E-03 3.23E-02 Cs-137 1.34E-02 9.25E-03 6.60E-02 0.00E+00 0.016 14.18 9.48E-04 2.37E-02 Ni-63 1.18E+00 1.18E+00 3.16E+00 0.00E+00 1.071 3572.1 3.30E-04 8.25E-03 Sr-90 2.69E-05 1.85E-05 1.32E-04 0.00E+00 0.000 12.09 2.22E-06 5.56E-05 The mean BcSOF for survey unit 12201C is 0.004 which equates to a dose of 0.103 mrem/yr TEDE. The mean of all identified isotopes is less than the Consultation Triggers for Residential and Commercial/Industrial Soil Contamination depicted in Table H.1 of NUREG 1757, Vol.1, Rev. 2 (MOU Table 1). The full table is included in Attachment 3 of this Release Record.

8. QUALITY CONTROL GEL laboratories processed two (2) split samples, L1-12201C-FQGS-202-SS and L1-12201C-QIGS-201-SS using gamma spectroscopy analysis. The data was evaluated using acceptance criteria specified in ZionSolutions procedure ZS-LT-01. There was acceptable agreement between field split results. Refer to Attachment 5 for data and quality control analysis results.

9. INVESTIGATIONS AND RESULTS QC scans were performed in four (4) rows at locations of scan alarms. The initial alarm latch readings were confirmed during the QC scans.

An investigation was performed in an elevated area in rows #19 to #22, in an area bounded as 4m x 5m. The investigation identified the location of the highest reading in row #21 (10,365 cpm). A field gamma spec reading taken at with the Inspector 1000 identified Cs-137. A small [27]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C piece of concrete was identified and captured. The piece read 50k cpm. Three (3) investigation samples, L1-12201C-FIGS-201-SS, L1-12201C-QIGS-201-SS, and L1-12201C-FIGS-201-SB were collected. These samples showed positive activity for Cs-137, with the highest OpSOF of 0.763. An investigation was performed at the location of scan alarms in the east end of row #43 (7,913 cpm). A field gamma spec reading taken with the Inspector 1000 identified no plant related nuclides. A QC scan of row #42 confirmed the alarm from the initial scan, and found an additional alarm in the center section (8,374 cpm). Investigation sample L1-12201C-FIGS-202-SS was taken at the location of the center section alarm and L1-12201C-FIGS-203-SS at the east end alarm. No DRP was identified during the sampling. These samples showed no activity for the ROC above MDA. An elevated area was identified on scan surveys that included the center section of rows #52 to

      #62 and the east section of rows #54 to #60. This area was approximately 200 m2 in size. The high reading in each row was predominantly in the center section and were latched. A field gamma spec reading taken in each row with the Inspector 1000 identified no plant related nuclides. QC scans were performed in rows #54 and #60. These scans confirmed the readings from the original scans. Investigation samples were taken at the alarms in the east end of row #55 (7,866 cpm), L1-12201C-FIGS-204-SS, and the center of row #58 (9,709 cpm), L1-12201C-FIGS-205-SS. No DRP was identified during the sampling. These samples showed no activity for the ROC above MDA.

Table 20 - Summary of Gamma Spectroscopy Results for Investigation Surface and Subsurface Soil Samples Co-60(1) Cs-134(1) Cs-137(1) Ni-63(2) Sr-90(2) MEASUREMENT ID (pCi/g) (pCi/g) (pCi/g) (pCi/g) (pCi/g) L1-12201C-FIGS-201-SS 1.54E-02 0.00E+00 1.80E+00 2.78E+00 3.60E-03 L1-12201C-FIGS-201-SB 2.49E-02 0.00E+00 1.40E+00 4.49E+00 2.80E-03 L1-12201C-FIGS-202-SS 4.15E-02 8.07E-03 0.00E+00 7.49E+00 0.00E+00 L1-12201C-FIGS-203-SS 0.00E+00 0.00E+00 5.63E-03 0.00E+00 1.13E-05 L1-12201C-FIGS-204-SS 0.00E+00 2.58E-02 0.00E+00 0.00E+00 0.00E+00 L1-12201C-FIGS-205-SS 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Note: (1) Bold font indicates ROC positively detected at concentration greater than MDC. (2) Ni-63 and Sr-90 are inferred concentrations using the maximum HTD ratio. [28]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Table 21 - Sum-of-Fractions for Investigation Surface and Subsurface Soil Samples, when compared to the OpDCGLs Fraction of the OpDCGLs for Surface and Subsurface MEASUREMENT ID Soils OpSOF Co-60 Cs-134 Cs-137 Ni-63 Sr-90 L1-12201C-FIGS-201-SS 1.41E-02 0.00E+00 4.96E-01 3.04E-03 1.16E-03 0.514 L1-12201C-FIGS-201-SB 2.83E-02 0.00E+00 7.06E-01 2.30E-02 6.59E-03 0.763 L1-12201C-FIGS-202-SS 3.80E-02 4.66E-03 0.00E+00 8.19E-03 0.00E+00 0.051 L1-12201C-FIGS-203-SS 0.00E+00 0.00E+00 1.55E-03 0.00E+00 3.64E-06 0.002 L1-12201C-FIGS-204-SS 0.00E+00 1.49E-02 0.00E+00 0.00E+00 0.00E+00 0.015 L1-12201C-FIGS-205-SS 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.000

10. REMEDIATION AND RESULTS A small piece of concrete reading 50k cpm was identified in row #21 and removed from the survey unit. No further remediation was performed in this survey unit.

11. CHANGES FROM THE SURVEY PLAN None.

12. DATA QUALITY ASSESSMENT (DQA)

The DQO sample design and data were reviewed in accordance with ZionSolutions procedure ZS-LT-300-001-004, Final Status Survey Data Assessment (Reference 16) for completeness and consistency. Documentation was complete and legible. Surveys and sample collection were consistent with the DQOs. The sampling design had adequate power as indicated by the Retrospective Power Curve. The analytical results of all samples were less than a SOF of one when compared to the Operational DCGLs. Although MARSSIM states that the Sign Test need not be performed in the instance that no measurements surpass the DCGL, the test was conducted to demonstrate coherence to the statistical principles of the DQO process. The Sign Test was performed on the data and compared to the original assumptions of the DQOs. The evaluation of the Sign Test results clearly demonstrates that the survey unit passes the unrestricted release criteria, thus, the null hypothesis is rejected. The Sign Test is included in Attachment 4. The preliminary data review consisted of calculating basic statistical quantities (e.g., mean, median, standard deviation). All data was considered valid including negative values, zeros, values reported below the MDC, and values with uncertainties greater than two standard deviations. The mean and median values for each ROC were well below the respective Operational DCGLs. Also, the retrospective power curve shows that a sufficient number of [29]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C samples were collected to achieve the desired power. Therefore, the survey unit meets the unrestricted release criteria with adequate power as required by the DQOs. The data for Co-60 and Cs-137 is represented graphically through a frequency plot and a quantile plot. All graphical representations are provided in Attachment 6.

13. ANOMALIES None.

14. CONCLUSION Survey unit 12201C has met the DQOs of the FSS plan. The ALARA criteria for soils as specified in Chapter 4 of the LTP were achieved. The EMC for soils was not needed for this survey unit and remediation was not required.

All identified ROC were used for statistical testing to determine the adequacy of the survey unit for FSS. Evaluation of the data shows that none of the ROC concentration values exceeds the Operational DCGL or any investigational levels; therefore, in accordance with the LTP Section 5.10, the survey unit meets the release criterion. The sample data passed the Sign Test. The null hypothesis was rejected. The Retrospective Power Curve showed that adequate power was achieved. The mean BcSOF, when the analytical results were compared to the BcDCGLs, was 0.004, which results in a dose contribution from soil in survey unit 12201C of 0.103 mrem/yr. based on the average concentration of the ROC in samples used for non-parametric statistical sampling. The conclusion of this Release Record is that survey unit 12201C is acceptable for unrestricted release.

15. REFERENCES

1. ZionSolutions procedure ZS-LT-300-001-005, Final Status Survey Data Reporting

2. Zion Station Restoration Project License Termination Plan (LTP)

3. ZionSolutions procedure ZS-LT-300-001-001, Final Status Survey Package Development

4. NUREG-1575, Revision 1, Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM)

5. ZionSolutions procedure ZS-LT-300-001-002, Survey Unit Classification

6. Zion Station Historical Site Assessment (HSA)

[30]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C

7. ZionSolutions TSD 11-001, Potential Radionuclides of Concern during the Decommissioning of Zion Station

8. ZionSolutions TSD 14-019, Radionuclides of Concern for Soil and Basement Fill Model Source Terms

9. ZionSolutions TSD 14-011, Soil Area Factors

10. ZionSolutions TSD 17-004, Operational Derived Concentration Guideline Levels for Final Status Survey

11. ZionSolutions TSD 11-004, Ludlum Model 44-10 Detector Sensitivity

12. ZionSolutions procedure ZS-LT-01, Quality Assurance Project Plan (QAPP) for Characterization and Final Status Survey

13. ZionSolutions procedure ZS-LT-300-001-003, Isolation and Control for Final Status Survey

14. ZionSolutions procedure ZS-RP-108-004-011, Operation of the Ludlum Model 2350-1 Data Logger

15. ZionSolutions TSD 13-004, Examination of Cs-137 Global Fallout in Soils at Zion Station

16. ZionSolutions procedure ZS-LT-300-001-004, Final Status Survey Data Assessment

16. ATTACHMENTS

1. Attachment 1 - Figure and Maps

2. Attachment 2 - Scan Data

3. Attachment 3 - Consultation Triggers for Residential and Commercial/Industrial Soil Contamination

4. Attachment 4 - Sign Test

5. Attachment 5 - QC Sample Assessment

6. Attachment 6 - Graphical Presentations

7. Attachment 7 - GEL Labs Certificate of Analysis Reports

[31]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C ATTACHMENT 1 - FIGURE AND MAPS [32]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Survey Unit 12201C Final Status Survey Boundaries and Systematic Sample Points [33]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Survey Unit 12201C Final Status Survey Scan Rows [34]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Survey Unit 12201C Investigation Sample Locations [35]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C ATTACHMENT 2 - SCAN DATA [36]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Scan Avg Action Detector Detector M2350- Survey Logged Scan Location Date/Time Background Level Type ID 1 ID Unit Result Alarms (cpm) (cpm) (cpm) 44-10 PR157372 117578 12201C GS036 6/14/2022 8:02 5564 5353 6135 No 44-10 PR157372 117578 12201C GS036 6/14/2022 8:11 5902 5353 6135 No 44-10 PR157372 117578 12201C GS036 6/14/2022 8:17 5849 5353 6135 No 44-10 PR157372 117578 12201C GS037 6/14/2022 8:23 5714 5353 6135 No 44-10 PR157372 117578 12201C GS037 6/14/2022 8:29 5978 5353 6135 No 44-10 PR157372 117578 12201C GS037 6/14/2022 8:32 5987 5353 6135 No 44-10 PR157372 117578 12201C GS038 6/14/2022 8:36 5588 5353 6135 No 44-10 PR157372 117578 12201C GS038 6/14/2022 8:43 5894 5353 6135 No 44-10 PR157372 117578 12201C GS038 6/14/2022 8:49 5627 5353 6135 No 44-10 PR157372 117578 12201C GS039 6/14/2022 8:55 6126 5353 6135 No 44-10 PR157372 117578 12201C GS039 6/14/2022 9:01 5703 5353 6135 No 44-10 PR157372 117578 12201C GS039 6/14/2022 9:04 6008 5353 6135 No 44-10 PR157372 117578 12201C GS040 6/14/2022 9:16 5583 5353 6135 No 44-10 PR157372 117578 12201C GS040 6/14/2022 9:21 5455 5353 6135 No 44-10 PR157372 117578 12201C GS040 6/14/2022 9:26 5648 5353 6135 No 44-10 PR157372 117578 12201C GS041 6/14/2022 9:32 6016 5353 6135 No 44-10 PR157372 117578 12201C GS041 6/14/2022 9:38 5903 5353 6135 No 44-10 PR157372 117578 12201C GS041 6/14/2022 9:42 5634 5353 6135 No 44-10 PR157372 117578 12201C GS042 6/14/2022 9:46 5486 5353 6135 No 44-10 PR157372 117578 12201C GS042 6/14/2022 9:54 5191 5353 6135 No 44-10 PR157372 117578 12201C GS042 6/14/2022 9:59 5700 5353 6135 No 44-10 PR157372 117578 12201C GS043 6/14/2022 13:12 5740 5353 6135 No 44-10 PR157372 117578 12201C GS043 6/14/2022 13:16 5791 5353 6135 No 44-10 PR157372 117578 12201C GS044 6/14/2022 13:20 5803 5353 6135 No 44-10 PR157372 117578 12201C GS044 6/14/2022 13:28 6092 5353 6135 No 44-10 PR157372 117578 12201C GS044 6/14/2022 13:33 6080 5353 6135 No 44-10 PR157372 117578 12201C GS045 6/14/2022 13:39 5697 5353 6135 No 44-10 PR157372 117578 12201C GS045 6/14/2022 13:45 5782 5353 6135 No 44-10 PR157372 117578 12201C GS045 6/14/2022 13:50 5700 5353 6135 No 44-10 PR157372 117578 12201C GS046 6/14/2022 13:54 5984 5353 6135 No 44-10 PR157372 117578 12201C GS046 6/14/2022 13:59 5740 5353 6135 No 44-10 PR157372 117578 12201C GS046 6/14/2022 14:03 5434 5353 6135 No 44-10 PR157372 117578 12201C GS047 6/14/2022 14:09 5767 5353 6135 No 44-10 PR157372 117578 12201C GS047 6/14/2022 14:15 6021 5353 6135 No 44-10 PR157372 117578 12201C GS047 6/14/2022 14:19 6104 5353 6135 No 44-10 PR157372 117578 12201C GS048 6/14/2022 14:23 5807 5353 6135 No [37]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Scan Avg Action Detector Detector M2350- Survey Logged Scan Location Date/Time Background Level Type ID 1 ID Unit Result Alarms (cpm) (cpm) (cpm) 44-10 PR157372 117578 12201C GS048 6/14/2022 14:27 6035 5353 6135 No 44-10 PR157372 117578 12201C GS048 6/14/2022 14:32 5945 5353 6135 No 44-10 PR157372 117578 12201C GS049 6/14/2022 14:38 5741 5353 6135 No 44-10 PR157372 117578 12201C GS049 6/14/2022 14:44 6031 5353 6135 No 44-10 PR157372 117578 12201C GS049 6/14/2022 14:47 5914 5353 6135 No 44-10 PR226943 126218 12201C GS001 6/14/2022 7:47 5217 4771 5510 No 44-10 PR226943 126218 12201C GS001 6/14/2022 7:51 5416 4771 5510 No 44-10 PR226943 126218 12201C GS001 6/14/2022 7:55 5239 4771 5510 No 44-10 PR226943 126218 12201C GS002 6/14/2022 7:59 5401 4771 5510 No 44-10 PR226943 126218 12201C GS002 6/14/2022 8:05 5406 4771 5510 No 44-10 PR226943 126218 12201C GS002 6/14/2022 8:12 5476 4771 5510 No 44-10 PR226943 126218 12201C GS003 6/14/2022 8:21 5401 4771 5510 No 44-10 PR226943 126218 12201C GS003 6/14/2022 8:26 5300 4771 5510 No 44-10 PR226943 126218 12201C GS003 6/14/2022 8:32 5360 4771 5510 No 44-10 PR226943 126218 12201C GS004 6/14/2022 8:36 5404 4771 5510 No 44-10 PR226943 126218 12201C GS004 6/14/2022 8:42 5249 4771 5510 No 44-10 PR226943 126218 12201C GS004 6/14/2022 8:46 5259 4771 5510 No 44-10 PR226943 126218 12201C GS005 6/14/2022 8:50 5381 4771 5510 No 44-10 PR226943 126218 12201C GS005 6/14/2022 8:55 5219 4771 5510 No 44-10 PR226943 126218 12201C GS005 6/14/2022 9:00 5440 4771 5510 No 44-10 PR226943 126218 12201C GS006 6/14/2022 9:21 5356 4771 5510 No 44-10 PR226943 126218 12201C GS006 6/14/2022 9:25 5405 4771 5510 No 44-10 PR226943 126218 12201C GS006 6/14/2022 9:30 5354 4771 5510 No 44-10 PR226943 126218 12201C GS007 6/14/2022 9:35 5374 4771 5510 No 44-10 PR226943 126218 12201C GS007 6/14/2022 9:39 5145 4771 5510 No 44-10 PR226943 126218 12201C GS007 6/14/2022 9:43 5157 4771 5510 No 44-10 PR226943 126218 12201C GS008 6/14/2022 10:10 5114 4771 5510 No 44-10 PR226943 126218 12201C GS008 6/14/2022 10:14 5302 4771 5510 No 44-10 PR226943 126218 12201C GS008 6/14/2022 10:19 4951 4771 5510 No 44-10 PR226943 126218 12201C GS009 6/14/2022 13:08 5106 4771 5510 No 44-10 PR226943 126218 12201C GS009 6/14/2022 13:12 5273 4771 5510 No 44-10 PR226943 126218 12201C GS009 6/14/2022 13:17 5267 4771 5510 No 44-10 PR226943 126218 12201C GS010 6/14/2022 13:22 5482 4771 5510 No 44-10 PR226943 126218 12201C GS010 6/14/2022 13:26 5271 4771 5510 No 44-10 PR226943 126218 12201C GS010 6/14/2022 13:31 5159 4771 5510 No 44-10 PR226943 126218 12201C GS011 6/14/2022 13:36 5138 4771 5510 No [38]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Scan Avg Action Detector Detector M2350- Survey Logged Scan Location Date/Time Background Level Type ID 1 ID Unit Result Alarms (cpm) (cpm) (cpm) 44-10 PR226943 126218 12201C GS011 6/14/2022 13:40 5234 4771 5510 No 44-10 PR226943 126218 12201C GS011 6/14/2022 13:44 5305 4771 5510 No 44-10 PR226943 126218 12201C GS012 6/14/2022 13:57 5408 4771 5510 No 44-10 PR226943 126218 12201C GS012 6/14/2022 14:01 5279 4771 5510 No 44-10 PR226943 126218 12201C GS012 6/14/2022 14:05 5350 4771 5510 No 44-10 PR226943 126218 12201C GS013 6/14/2022 14:09 5492 4771 5510 No 44-10 PR226943 126218 12201C GS013 6/14/2022 14:13 5242 4771 5510 No 44-10 PR226943 126218 12201C GS013 6/14/2022 14:17 5050 4771 5510 No 44-10 PR226943 126218 12201C GS019 6/14/2022 14:32 6044 4771 5510 Yes 44-10 PR226943 126218 12201C GS019 6/14/2022 14:34 7359 4771 5510 Yes 44-10 PR226943 126218 12201C GS021 6/14/2022 14:37 9071 4771 5510 Yes 44-10 PR226943 126218 12201C GS021 6/14/2022 14:38 5694 4771 5510 Yes 44-10 PR226943 126218 12201C GS022 6/14/2022 14:40 5453 4771 5510 No 44-10 PR226943 126218 12201C GS020 6/14/2022 14:45 7221 4771 5510 Yes 44-10 PR226943 126218 12201C GS020 6/14/2022 14:46 5044 4771 5510 No 44-10 PR226943 126218 12201C GS019 6/15/2022 8:47 5298 5673 6478 No 44-10 PR226943 126218 12201C GS019 6/15/2022 8:56 6308 5673 6478 No 44-10 PR226943 126218 12201C GS020 6/15/2022 9:00 6639 5673 6478 Yes 44-10 PR226943 126218 12201C GS020 6/15/2022 9:01 7585 5673 6478 Yes 44-10 PR226943 126218 12201C GS020 6/15/2022 9:03 8079 5673 6478 Yes 44-10 PR226943 126218 12201C GS020 6/15/2022 9:05 7589 5673 6478 Yes 44-10 PR226943 126218 12201C GS020 6/15/2022 9:05 7514 5673 6478 Yes 44-10 PR226943 126218 12201C GS021 6/15/2022 9:07 7971 5673 6478 Yes 44-10 PR226943 126218 12201C GS021 6/15/2022 9:11 7938 5673 6478 Yes 44-10 PR226943 126218 12201C GS021 6/15/2022 9:13 10365 5673 6478 Yes 44-10 PR226943 126218 12201C GS021 6/15/2022 9:15 5636 5673 6478 No 44-10 PR226943 126218 12201C GS022 6/15/2022 9:19 5516 5673 6478 No 44-10 PR226943 126218 12201C GS021 6/15/2022 9:44 50404 5673 6478 Yes 44-10 PR372143 304712 12201C GS021 6/15/2022 8:39 5134 4585 5309 No 44-10 PR372143 304712 12201C GS021 6/15/2022 8:44 5011 4585 5309 No 44-10 PR372143 304712 12201C GS022 6/15/2022 8:49 5251 4585 5309 No 44-10 PR372143 304712 12201C GS022 6/15/2022 8:53 5172 4585 5309 No 44-10 PR372143 304712 12201C GS023 6/15/2022 8:57 5050 4585 5309 No 44-10 PR372143 304712 12201C GS023 6/15/2022 9:01 4998 4585 5309 No 44-10 PR372143 304712 12201C GS024 6/15/2022 9:06 5248 4585 5309 No 44-10 PR372143 304712 12201C GS024 6/15/2022 9:12 5147 4585 5309 No [39]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Scan Avg Action Detector Detector M2350- Survey Logged Scan Location Date/Time Background Level Type ID 1 ID Unit Result Alarms (cpm) (cpm) (cpm) 44-10 PR372143 304712 12201C GS024 6/15/2022 9:16 5100 4585 5309 No 44-10 PR372143 304712 12201C GS025 6/15/2022 9:22 5170 4585 5309 No 44-10 PR372143 304712 12201C GS025 6/15/2022 9:26 5282 4585 5309 No 44-10 PR372143 304712 12201C GS025 6/15/2022 9:30 5175 4585 5309 No 44-10 PR372143 304712 12201C GS026 6/15/2022 9:34 5002 4585 5309 No 44-10 PR372143 304712 12201C GS026 6/15/2022 9:38 5028 4585 5309 No 44-10 PR372143 304712 12201C GS026 6/15/2022 9:42 5173 4585 5309 No 44-10 PR372143 304712 12201C GS027 6/15/2022 9:48 4879 4585 5309 No 44-10 PR372143 304712 12201C GS027 6/15/2022 9:52 5228 4585 5309 No 44-10 PR372143 304712 12201C GS028 6/15/2022 9:56 5157 4585 5309 No 44-10 PR372143 304712 12201C GS028 6/15/2022 10:00 5210 4585 5309 No 44-10 PR372143 304712 12201C GS029 6/15/2022 10:05 4985 4585 5309 No 44-10 PR372143 304712 12201C GS029 6/15/2022 10:09 5246 4585 5309 No 44-10 PR372143 304712 12201C GS030 6/15/2022 10:14 4842 4585 5309 No 44-10 PR372143 304712 12201C GS030 6/15/2022 10:18 5250 4585 5309 No 44-10 PR372143 304712 12201C GS031 6/15/2022 10:22 5135 4585 5309 No 44-10 PR372143 304712 12201C GS031 6/15/2022 10:26 5211 4585 5309 No 44-10 PR372143 304712 12201C GS032 6/15/2022 13:11 4959 4585 5309 No 44-10 PR372143 304712 12201C GS032 6/15/2022 13:16 5060 4585 5309 No 44-10 PR372143 304712 12201C GS033 6/15/2022 13:21 5059 4585 5309 No 44-10 PR372143 304712 12201C GS033 6/15/2022 13:25 5182 4585 5309 No 44-10 PR372143 304712 12201C GS034 6/15/2022 13:30 5275 4585 5309 No 44-10 PR372143 304712 12201C GS034 6/15/2022 13:34 4755 4585 5309 No 44-10 PR372143 304712 12201C GS035 6/15/2022 13:39 4789 4585 5309 No 44-10 PR372143 304712 12201C GS035 6/15/2022 13:43 5078 4585 5309 No 44-10 RN25063 216188 12201C GS051 6/15/2022 9:13 5926 5507 6300 No 44-10 RN25063 216188 12201C GS051 6/15/2022 9:19 6229 5507 6300 No 44-10 RN25063 216188 12201C GS051 6/15/2022 9:25 6184 5507 6300 No 44-10 RN25063 216188 12201C GS052 6/15/2022 9:33 6190 5507 6300 No 44-10 RN25063 216188 12201C GS052 6/15/2022 9:46 5885 5507 6300 No 44-10 RN25063 216188 12201C GS053 6/15/2022 9:51 6029 5507 6300 No 44-10 RN25063 216188 12201C GS053 6/15/2022 10:00 5897 5507 6300 No 44-10 RN25063 216188 12201C GS054 6/15/2022 10:20 7557 5507 6300 Yes 44-10 RN25063 216188 12201C GS054 6/15/2022 13:17 6111 5507 6300 No 44-10 RN25063 216188 12201C GS055 6/15/2022 13:25 5471 5507 6300 No 44-10 RN25063 216188 12201C GS054 6/15/2022 13:56 7656 5507 6300 Yes [40]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Scan Avg Action Detector Detector M2350- Survey Logged Scan Location Date/Time Background Level Type ID 1 ID Unit Result Alarms (cpm) (cpm) (cpm) 44-10 RN25063 216188 12201C GS054 6/15/2022 13:57 7706 5507 6300 Yes 44-10 RN25063 216188 12201C GS056 6/15/2022 14:05 5995 5507 6300 No 44-10 RN25063 216188 12201C GS057 6/15/2022 14:16 5941 5507 6300 No 44-10 PR157372 117578 12201C GS043 6/15/2022 8:29 7913 4862 5607 Yes 44-10 PR157372 117578 12201C GS043 6/15/2022 9:02 6614 5322 6102 Yes 44-10 PR157372 117578 12201C GS043 6/15/2022 9:02 6076 5322 6102 No 44-10 PR157372 117578 12201C GS043 6/15/2022 9:08 6091 5322 6102 No 44-10 PR157372 117578 12201C GS043 6/15/2022 9:12 5928 5322 6102 No 44-10 PR157372 117578 12201C GS050 6/15/2022 9:16 6011 5322 6102 No 44-10 PR157372 117578 12201C GS050 6/15/2022 9:22 6077 5322 6102 No 44-10 PR157372 117578 12201C GS050 6/15/2022 9:27 5877 5322 6102 No 44-10 PR372143 304712 12201C GS021 6/16/2022 8:22 5223 4574 5297 No 44-10 PR372143 304712 12201C GS022 6/16/2022 8:28 5262 4574 5297 No 44-10 PR372143 304712 12201C GS023 6/16/2022 8:32 5127 4574 5297 No 44-10 PR372143 304712 12201C GS026 6/16/2022 8:37 5265 4574 5297 No 44-10 PR372143 304712 12201C GS027 6/16/2022 8:41 5104 4574 5297 No 44-10 PR372143 304712 12201C GS028 6/16/2022 8:45 4963 4574 5297 No 44-10 PR372143 304712 12201C GS029 6/16/2022 8:50 5246 4574 5297 No 44-10 PR372143 304712 12201C GS030 6/16/2022 8:55 4987 4574 5297 No 44-10 PR372143 304712 12201C GS031 6/16/2022 9:00 4737 4574 5297 No 44-10 PR372143 304712 12201C GS032 6/16/2022 9:05 5244 4574 5297 No 44-10 PR372143 304712 12201C GS033 6/16/2022 9:10 5076 4574 5297 No 44-10 PR372143 304712 12201C GS034 6/16/2022 9:15 5155 4574 5297 No 44-10 PR372143 304712 12201C GS035 6/16/2022 9:20 5005 4574 5297 No 44-10 RN25063 216188 12201C GS058 6/16/2022 9:22 5590 5029 5787 No 44-10 RN25063 216188 12201C GS059 6/16/2022 9:28 5372 5029 5787 No 44-10 RN25063 216188 12201C GS060 6/16/2022 9:57 5692 5029 5787 No 44-10 RN25063 216188 12201C GS061 6/16/2022 10:03 5611 5029 5787 No 44-10 RN25063 216188 12201C GS061 6/16/2022 10:16 7101 5029 5787 Yes 44-10 RN25063 216188 12201C GS062 6/16/2022 10:31 5492 5029 5787 No 44-10 RN25063 216188 12201C GS062 6/16/2022 10:39 5737 5029 5787 No 44-10 RN25063 216188 12201C GS063 6/16/2022 13:49 5426 5029 5787 No 44-10 RN25063 216188 12201C GS063 6/16/2022 13:57 5478 5029 5787 No 44-10 RN25063 216188 12201C GS063 6/16/2022 14:04 5561 5029 5787 No 44-10 RN25063 216188 12201C GS064 6/16/2022 14:11 5711 5029 5787 No 44-10 RN25063 216188 12201C GS064 6/16/2022 14:18 5625 5029 5787 No [41]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Scan Avg Action Detector Detector M2350- Survey Logged Scan Location Date/Time Background Level Type ID 1 ID Unit Result Alarms (cpm) (cpm) (cpm) 44-10 RN25063 216188 12201C GS064 6/16/2022 14:22 5702 5029 5787 No 44-10 RN25063 216188 12201C GS065 6/16/2022 14:28 5314 5029 5787 No 44-10 RN25063 216188 12201C GS065 6/16/2022 14:34 5490 5029 5787 No 44-10 RN25063 216188 12201C GS065 6/16/2022 14:39 5592 5029 5787 No 44-10 RN25063 216188 12201C GS052 6/17/2022 8:31 6722 5023 5780 Yes 44-10 RN25063 216188 12201C GS053 6/17/2022 9:22 7749 5023 5780 Yes 44-10 RN25063 216188 12201C GS054 6/17/2022 9:39 7746 5023 5780 Yes 44-10 RN25063 216188 12201C GS055 6/17/2022 10:24 7866 5023 5780 Yes 44-10 RN25063 216188 12201C GS056 6/17/2022 13:44 8087 5023 5780 Yes 44-10 RN25063 216188 12201C GS057 6/17/2022 14:14 8506 5023 5780 Yes 44-10 RN25063 216188 12201C GS058 6/17/2022 14:39 9709 5023 5780 Yes 44-10 PR192598 126209 12201C GS014 6/17/2022 10:13 5063 4656 5385 No 44-10 PR192598 126209 12201C GS014 6/17/2022 10:17 5020 4656 5385 No 44-10 PR192598 126209 12201C GS014 6/17/2022 10:21 5041 4656 5385 No 44-10 PR192598 126209 12201C GS015 6/17/2022 10:25 5011 4656 5385 No 44-10 PR192598 126209 12201C GS015 6/17/2022 10:29 5154 4656 5385 No 44-10 PR192598 126209 12201C GS015 6/17/2022 10:33 5167 4656 5385 No 44-10 PR192598 126209 12201C GS016 6/17/2022 13:08 4960 4656 5385 No 44-10 PR192598 126209 12201C GS016 6/17/2022 13:12 5228 4656 5385 No 44-10 PR192598 126209 12201C GS016 6/17/2022 13:16 5089 4656 5385 No 44-10 PR192598 126209 12201C GS017 6/17/2022 13:20 5351 4656 5385 No 44-10 PR192598 126209 12201C GS017 6/17/2022 13:24 5283 4656 5385 No 44-10 PR192598 126209 12201C GS017 6/17/2022 13:27 5115 4656 5385 No 44-10 PR192598 126209 12201C GS018 6/17/2022 13:54 5094 4656 5385 No 44-10 PR192598 126209 12201C GS018 6/17/2022 14:06 5258 4656 5385 No 44-10 PR192598 126209 12201C GS019 6/17/2022 14:10 5124 4656 5385 No 44-10 PR192598 126209 12201C GS019 6/17/2022 14:24 5274 4656 5385 No 44-10 PR192598 126209 12201C GS019 6/17/2022 14:28 5086 4656 5385 No 44-10 PR192598 126209 12201C GS020 6/17/2022 14:32 5035 4656 5385 No 44-10 PR192598 126209 12201C GS020 6/17/2022 14:33 5153 4656 5385 No 44-10 PR192598 126209 12201C GS020 6/17/2022 14:38 5012 4656 5385 No 44-10 PR192598 126209 12201C GS018 6/17/2022 14:43 5300 4656 5385 No 44-10 RN25063 216188 12201C GS058 6/18/2022 9:43 9240 4986 5740 Yes 44-10 RN25063 216188 12201C GS059 6/18/2022 10:15 8348 4986 5740 Yes 44-10 RN25063 216188 12201C GS060 6/18/2022 10:40 8389 4986 5740 Yes 44-10 RN25063 216188 12201C GS061 6/18/2022 12:56 8270 4986 5740 Yes [42]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Scan Avg Action Detector Detector M2350- Survey Logged Scan Location Date/Time Background Level Type ID 1 ID Unit Result Alarms (cpm) (cpm) (cpm) 44-10 RN25063 216188 12201C GS062 6/18/2022 13:12 6471 4986 5740 Yes 44-10 PR192598 126209 12201C GS019 6/18/2022 9:04 5653 5210 5982 No 44-10 PR192598 126209 12201C GS020 6/18/2022 9:07 5925 5210 5982 No 44-10 PR192598 126209 12201C GS066 6/21/2022 9:12 5386 4811 5553 No 44-10 PR192598 126209 12201C GS066 6/21/2022 9:16 5507 4811 5553 No 44-10 PR192598 126209 12201C GS067 6/21/2022 9:26 5398 4811 5553 No 44-10 PR192598 126209 12201C GS067 6/21/2022 9:30 5486 4811 5553 No 44-10 PR192598 126209 12201C GS067 6/21/2022 9:32 5259 4811 5553 No 44-10 PR192598 126209 12201C GS068 6/21/2022 9:35 5536 4811 5553 No 44-10 PR192598 126209 12201C GS068 6/21/2022 9:39 5317 4811 5553 No 44-10 PR192598 126209 12201C GS068 6/21/2022 9:48 5278 4811 5553 No 44-10 PR192598 126209 12201C GS069 6/21/2022 9:52 5398 4811 5553 No 44-10 PR192598 126209 12201C GS069 6/21/2022 9:57 5455 4811 5553 No 44-10 PR192598 126209 12201C GS069 6/21/2022 10:00 5318 4811 5553 No 44-10 PR192598 126209 12201C GS070 6/21/2022 10:06 5181 4811 5553 No 44-10 PR192598 126209 12201C GS070 6/21/2022 10:10 5381 4811 5553 No 44-10 PR192598 126209 12201C GS070 6/21/2022 10:14 5281 4811 5553 No 44-10 PR192598 126209 12201C GS071 6/21/2022 10:18 5521 4811 5553 No 44-10 PR192598 126209 12201C GS071 6/21/2022 10:22 5391 4811 5553 No 44-10 PR192598 126209 12201C GS071 6/21/2022 10:25 5488 4811 5553 No 44-10 PR192598 126209 12201C GS072 6/21/2022 13:19 5136 4811 5553 No 44-10 PR192598 126209 12201C GS072 6/21/2022 13:23 5209 4811 5553 No 44-10 PR192598 126209 12201C GS072 6/21/2022 13:27 5400 4811 5553 No 44-10 PR192598 126209 12201C GS073 6/21/2022 13:30 5141 4811 5553 No 44-10 PR192598 126209 12201C GS073 6/21/2022 13:34 5233 4811 5553 No 44-10 PR192598 126209 12201C GS073 6/21/2022 13:36 5462 4811 5553 No 44-10 PR192598 126209 12201C GS074 6/21/2022 13:38 5269 4811 5553 No 44-10 PR192598 126209 12201C GS074 6/21/2022 13:41 4972 4811 5553 No 44-10 PR192598 126209 12201C GS074 6/21/2022 13:44 5348 4811 5553 No [43]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C ATTACHMENT 3 - CONSULTATION TRIGGERS FOR RESIDENTIAL AND COMMERCIAL/INDUSTRIAL SOIL CONTAMINATION [44]

FSS RELEASE RECORD - REV. 2 ~ NORTH PROTECTED AREA YARD = ZIONSOLUTIONSuc= M~SIIMioM~ SURVEY UNIT 12201C Table H.1 Consultation Triggers for Residential and Commercial/Industrial Soil Contamination (MOU Table 1) Except for radium-226, thorium-232, or total uranium, concentrations should be aggregated using a sum of the fraction approach to determine site-specific consultation trigger concentrations. This table is based on single contaminant concentrations for residential and commercial/industrial land use when using generally accepted exposure parameters. Table users should select the appropriate column based on the site's reasonably anticipated land use. Radionuclide Residential Soil Concentration Industrial/Commercial Soil Concentration H-3 228 nCj/g 423 oCi/g C-14 46 oCi/g 123 000 oCi/J!; Na-22 9oCL'g 14 pCi/g S-35 19,600 pCi/g 32,200 000 oCi/2 Cl-36 6oCi/J!; 10,700 pCi/g Ca-45 13.500 pCi/J!; 3 740 000 oCi/e: Sc-46 105 Dl i/g 169 oCiig Mn-54 69 oCi/g 112 oCi/1!: Fe-55 269 000 oCi/g 2 210,000 oCi/g Co-57 873 oCi/g 1,420 pCi/J!; Co-60 4 pCi/g 6 pCi/2 Ni-59 20 800 oCi/g 1,230 000 oCi/2 Ni-63 9480 oCi/g 555 000 oCi/g Sr-90+D 23 oCi/g 1.070 oCi/g Nb-94 2 pCi/g 3 pCi/g Tc-99 25 pCi/g 89,400 pCi/g 1-129 60 oCi/g 1,080 oCi/g Cs-134 16 oCi/g 26 oCi/g Cs-137+D 6 oCi/g 11 oCi/g Eu-152 4 oCi/g 7 oCi/2 Eu-154 S pCi/g 8 pCi/g lr-192 336 pCi/g 544 pCi/g Pb-210+D IS oCi/g 123 oCi/g Ra-226 S oCi/2 S oCi/g Ac-227+D 10 oCi/g 21 oCi/2 Th-228+D 15 oCi/g 25 oCi/g Th-232 5 pCi/g 5 pCi/g U-234 401 oCi/g 3 310 oCi/2 U-235+D 20 oCi/g 39 oCi/2 U-238+D 74 oCi/g 179 oCili!: total uranium 47 m2/k2 1230 m2/kg Pu-231! 297 pCi/g 1 640 pCi/2 Pu-239 259 pCi/g 1,430 oCi/g Pu-241 40 600 oCi/g 172.000 ne i/2 Am-241 187 oCi/g 568 pCi/2 Cm-242 32 200 oCi/g 344 000 pCi/g Cm-243 35 pCi/g 67 pCi/g [45]

FSS RELEASE RECORD - REV. 2 ~ NORTH PROTECTED AREA YARD = ZIONSOLUTIONS;;z= An E.-gySolutions Company SURVEY UNIT 12201C ATTACHMENT 4 - SIGN TEST [46]

FSS RELEASE RECORD - REV. 2 ~ NORTH PROTECTED AREA YARD =ZIC SOLUTIONS,-;:-

                                                                                                                     .... 1 i....   '

SURVEY UNIT 12201C urvey Are a: 1_000 De cription: e mi R e tricted Area Orm ud urve.* r nit: 0. 1-201C De c1 iption: K011h Protected ea Yard Cla ifica tion: T, -pe I a Error: _ _o_._ o__ _ Fraction of the R elease Cliterion ActiYi or eigbted Radiot uclide ofConcem 1- s igt OF lllll s Co-60 C -134 C - 13 i-6 r-90 (as applicable) 1 1.03E-02 0.00E+00 .85E-03 2.21E-03 1.1 E-05 SOF 0.017 0.983 + 2 7.38E-03 4.47E-03 2.06E-03 1.59E-03 4.84E-06 SOF 0.016 0.984 + 3 3.18E-03 0.00E +00 0.00E+00 6.85E-04 0.00E+00 SOF 0.004 0.996 + 0.00E+00 4.1 E-03 2.84E-03 0.00E+00 6.66E-06 SOF 0.007 0.993 + 5 0.00E+00 1.58E-02 0.00E+00 0.00E+00 0.00E+00 so 0.016 0.98 + 6 0.00E+00 1.3 E-02 6.72E-0 0.00E+00 1.58E-06 SOF 0.014 0.986 + 7 1. 78E-03 1. E-02 2.39E-03 3.83E-04 5.61E-06 SOF 0.019 0.981 + 8 .04E-02 0.00E+00 0.00E+00 2.23E-03 0.00E+00 SOF 0.013 0.987 + 9 8.61E-03 0.00E+00 1.00E-03 1.85E-03 2.35E-06 SOF 0.011 0.989 + 10 6.60E-03 1.85E-03 .SSE-03 .42E-03 1.07E-05 SOF 0.01 0.986 + 1 5.99E-03 8.66E-03 8.82E-03 1.29E-03 2.07E-05 SOF 0.025 0.975 + 12 0.00E+00 2.66E-03 4.33E-03 0.00E+00 1.01E-05 SOF 0.007 0.993 + 13 4.34E-03 9.69E-03 7.49E-03 9.33E-04 1.76£-05 SOF 0.022 0.978 + 1 0.00E+00 1.68E-03 3.25E-03 0.00E+00 7.63E-06 SOF 0.005 0.995 + 5 1.60E-02 3.28E-03 0.00E+00 3.45E-03 0.00E+00 SOF 0.023 0.977 + 16 .29E-02 5.34 E-03 2.SSE -03 2. 78E-03 5.98E-06 SOF 0.024 0.976 + 17 .44E-02 3.09 E-04 1.82E-02 3.10E-03 4.26E-05 SOF 0 .036 0.96 + Criti al *alue Table I.3 of MAR. I 1) = _ _1_2 __ mnber of Po. itiYe Difference * ' 1 The lU'\'ey unit 0 meet D doe

• not meet the a cep ru ce criteria .

Prepared By {RE): ~4 (Prin Ja-&a:;,;)

                                                                               ~

Peer Reviewed By {RE): _ _ _ _ _ _ __ __ _ _ _/_ _ _ _ _ _ __ _ _ _ _ _ __ (Prin ame) (Signa ure) (Dat e) [47]

FSS RELEASE RECORD - REV. 2 ~ NORTH PROTECTED AREA YARD = ZIONSOLUTIONS;;z= An E.-gySolutions Company SURVEY UNIT 12201C ATTACHMENT 5 - QC SAMPLE ASSESSMENT [48]

                                                                                                                      ~

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD

                                                                                                             =ZIO SOLUTIQ       I; J.'t   CA SURVEY UNIT 12201C Duplicate SwYey Area :.i:::      L000                  nit r;:   12201C                                     orth Pro ec ed Area Yard Sample Ptau..::                  Ll - L - 0lC-F Sample

Description:

Compati. on of spli ample

• coUe ted from su1fa e soil sample loca ion 3/4202 and itn-e i ation urface soil *ample lo a ion _01 and analyzed usu gamma pee *os opy by GEL Lab *. The s andard ompari on ample were Ll 0lC-FSG --0--S, Ll-L201C-FQG -202- and Ll 0lC-FIG -201 - Ll -L201C-QIG -201 -

Agreemen Accep able Re elution (Y ) Ell'Ol' Range 15.-5 0.6 - 1.66 l.0lE-rOl 0. -t Ll y

0. 0

16. 6 0. 5-1... _,O E-00 0.1-t 0. y 0.11 Commeu s Coffee in Action : Table -t -1 from the QAPP is reproduced below o how For he ystematic sample. the

• andard sample and QC sample. did no bo h a ep ance crite1ia used to asse *s plit ample .

haYe posi iYe re *ul s for a gamma emi ing ROC. therefore K--t0 wa used in he QC ompari *on.There was accep able agreemen \\-i1e11 usino K--10 . Re olu ion A ceptable Ratio

                                                                                             <4                        not comparable For he it1Yes iga ion ample, C -1 wa

• posi iYe in both amples. There -t- 0.: -2.0 was a ep able agreemen: when using C -1 3* . - L 0.6-1.66 16-.'.'0 0.

_l -200

                                                                                            >200 Date:

[49]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C ATTACHMENT 6 - GRAPHICAL PRESENTATIONS [50]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Posting Plot [51]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C QUANTILE PLOT FOR Co-60 Survey Unit: 12201C Survey Unit Name: North Protected Area Yard Mean: 6.54E-03 pCi/g Quantile Plot For Cs-137 7.00E-02 6.00E-02 Concentration (pCi/g) 5.00E-02 4.00E-02 3.00E-02 2.00E-02 1.00E-02 0.00E+00 0% 20% 40% 60% 80% 100% Percentage [52]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C QUANTILE PLOT FOR Cs-137 Survey Unit: 12201C Survey Unit Name: North Protected Area Yard Mean: 1.34E-02 pCi/g Quantile Plot For Cs-137 7.00E-02 6.00E-02 Concentration (pCi/g) 5.00E-02 4.00E-02 3.00E-02 2.00E-02 1.00E-02 0.00E+00 0% 20% 40% 60% 80% 100% Percentage [53]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C HISTOGRAM FOR Co-60 Survey Unit: 12201C Survey Unit Name: North Protected Area Yard Mean: 6.54E-03 pCi/g Median: 6.53E-03 pCi/g ST DEV: 0.006 Skew: 0.416 Frequency Plot For Co-60 10 9 8 7 6 Frequency 6 5 4 3 3 3 2 2 2 1 1 0 2.92E-03 5.83E-03 8.75E-03 1.17E-02 1.46E-02 1.75E-02 Upper End Value (pCi/g) Observation Observation Upper Value Frequency  % 2.92E-03 6 35% 5.83E-03 2 12% 8.75E-03 3 18% 1.17E-02 3 18% 1.46E-02 1 6% 1.75E-02 2 12% TOTAL 17 100% [54]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C HISTOGRAM FOR Cs-137 Survey Unit: 12201C Survey Unit Name: North Protected Area Yard Mean: 1.34E-02 pCi/g Median: 9.25E-03 pCi/g ST DEV: 0.016 Skew: 2.236 Frequency Plot For Cs-137 14 12 10 10 Frequency 8 6 4 4 2 2 1 0 0 0 1.10E-02 2.20E-02 3.30E-02 4.40E-02 5.50E-02 6.60E-02 Upper End Value (pCi/g) Observation Observation Upper Value Frequency  % 1.10E-02 10 59% 2.20E-02 4 24% 3.30E-02 2 12% 4.40E-02 0 0% 5.50E-02 0 0% 6.60E-02 1 6% TOTAL 17 100% [55]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C Prospective and Retrospective Power Curves for Survey Unit 12201C MARSSIM Sign Test (Pro\Retrospective) Power alpha=5% n=(17\17) std.dev.=(0.3\0.008) 1 0.9 Probability of deciding true mean or median < A.L. 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 True OpSOF Mean or Median Prospective Power Retrospective Power [56]

FSS RELEASE RECORD - REV. 2 NORTH PROTECTED AREA YARD SURVEY UNIT 12201C ATTACHMENT 7 - GEL LABS CERTIFICATE OF ANALYSIS REPORTS [57]

July 06, 2022 Mr. Gerry Wood Zion Solutions 100 Shiloh Blvd. Zion, Illinois 60099 Re: 2022 Special Projects Analysis Work Order: 584597

Dear Mr. Wood:

GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the sample(s) we received on June 30, 2022. This original data report has been prepared and reviewed in accordance with GELs standard operating procedures. Test results for NELAP or ISO 17025 accredited tests are verified to meet the requirements of those standards, with any exceptions noted. The results reported relate only to the items tested and to the sample as received by the laboratory. These results may not be reproduced except as full reports without approval by the laboratory. Copies of GELs accreditations and certifications can be found on our website at www.gel.com. Our policy is to provide high quality, personalized analytical services to enable you to meet your analytical needs on time every time. We trust that you will find everything in order and to your satisfaction. If you have any questions, please do not hesitate to call me at (843) 556-8171, ext. 1605. Sincerely, PM_SIGN_HERE Zachary Worsham Project Manager Purchase Order: 702793 Enclosures Page 1 of 14 SDG: 584597

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 (843) 5568171 www.gel.com Certificate of Analysis Report for ENRG080 Zion Solutions (702793) Client SDG: 584597 GEL Work Order: 584597 The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

              ** Analyte is a Tracer compound
              ** Analyte is a surrogate compound U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.

Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the Certificate of Analysis. The designation ND, if present, appears in the result column when the analyte concentration is not detected above the limit as defined in the U qualifier above. This data report has been prepared and reviewed in accordance with GEL Laboratories LLC standard operating procedures. Please direct any questions to your Project Manager, Zachary Worsham. Reviewed by USER_SIGN_HERE Page 2 of 14 SDG: 584597

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 6, 2022

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Mr. Gerry Wood Project: 2022 Special Projects Analysis Client Sample ID: L1-12201C-FIGS-201-CV Project: ENRG08003 Sample ID: 584597001 Client ID: ENRG080 Matrix: Solid Collect Date: 15-JUN-22 Receive Date: 30-JUN-22 Collector: Client Moisture: 4.89% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. High Rad Testing Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 U 0.343 +/-4.19 7.41 +/-4.19 pCi/g HXB2 07/05/22 1255 2285173 1 Americium-241 U 1.36 +/-21.8 36.4 +/-21.8 13.4 pCi/g Bismuth-211 U 21.7 +/-38.5 65.6 +/-39.7 pCi/g Bismuth-212 U 10.5 +/-11.9 23.1 +/-12.9 pCi/g Bismuth-214 U 8.21 +/-10.1 13.0 +/-10.2 pCi/g Cesium-134 U -0.232 +/-0.902 1.67 +/-0.909 0.114 pCi/g Cesium-137 15500 +/-54.8 6.42 +/-1650 0.198 pCi/g Cobalt-60 6.82 +/-2.67 1.53 +/-2.76 0.0881 pCi/g Europium-152 U -9.77 +/-18.0 30.5 +/-18.5 1.07 pCi/g Europium-154 U 0.132 +/-2.41 4.60 +/-2.41 0.997 pCi/g Lead-212 U 1.51 +/-8.98 15.6 +/-9.01 pCi/g Lead-214 U 2.46 +/-14.0 23.8 +/-14.1 pCi/g Potassium-40 U 2.99 +/-14.3 12.2 +/-14.3 pCi/g Thallium-208 U 2.66 +/-4.37 7.29 +/-4.54 pCi/g Laboratory Composite "As Received" The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 HXB2 07/05/22 0655 2285165 GEL Prep Method Laboratory Composite 2284292 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R 2 GEL Prep Method Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 3 of 14 SDG: 584597

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 6, 2022

Contact:

Mr. Gerry Wood Project: 2022 Special Projects Analysis Client Sample ID: L1-12201C-FIGS-201-CV Project: ENRG08003 Sample ID: 584597001 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 4 of 14 SDG: 584597

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Report Date: July 6, 2022 Client : Zion Solutions Page 1 of 4 100 Shiloh Blvd. Zion, Illinois

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Mr. Gerry Wood Workorder: 584597 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time High Rad Testing Batch 2285173 QC1205130943 584597001 DUP Actinium-228 U 0.343 U 0.944 pCi/g 0 N/A HXB2 07/05/2217:09 Uncert: +/-4.19 +/-5.05 TPU: +/-4.19 +/-5.07 Americium-241 U 1.36 U 33.0 pCi/g 0 N/A Uncert: +/-21.8 +/-27.6 TPU: +/-21.8 +/-27.9 Bismuth-211 U 21.7 U -29.7 pCi/g 0 N/A Uncert: +/-38.5 +/-38.1 TPU: +/-39.7 +/-40.4 Bismuth-212 U 10.5 U 0.243 pCi/g 0 N/A Uncert: +/-11.9 +/-11.6 TPU: +/-12.9 +/-11.6 Bismuth-214 U 8.21 U -7.23 pCi/g 0 N/A Uncert: +/-10.1 +/-8.02 TPU: +/-10.2 +/-8.69 Cesium-134 U -0.232 U -0.390 pCi/g 0 N/A Uncert: +/-0.902 +/-0.859 TPU: +/-0.909 +/-0.877 Cesium-137 15500 15500 pCi/g .323 (0%-20%) Uncert: +/-54.8 +/-54.8 TPU: +/-1650 +/-1660 Cobalt-60 6.82 7.74 pCi/g 12.7 (0% - 100%) Uncert: +/-2.67 +/-3.02 TPU: +/-2.76 +/-3.13 Europium-152 U -9.77 U 3.51 pCi/g 0 N/A Uncert: +/-18.0 +/-18.0 TPU: +/-18.5 +/-18.1 Europium-154 U 0.132 U 0.136 pCi/g 0 N/A Uncert: +/-2.41 +/-2.34 TPU: +/-2.41 +/-2.34 Lead-212 U 1.51 U 8.95 pCi/g 0 N/A Uncert: +/-8.98 +/-12.4 TPU: +/-9.01 +/-13.0 Lead-214 U 2.46 U -9.20 pCi/g 0 N/A Uncert: +/-14.0 +/-13.8 TPU: +/-14.1 +/-14.4 Potassium-40 U 2.99 U -7.17 pCi/g 0 N/A Uncert: +/-14.3 +/-12.9 TPU: +/-14.3 +/-13.3 Thallium-208 U 2.66 U -2.41 pCi/g 0 N/A Uncert: +/-4.37 +/-4.31 Page 5 of 14 SDG: 584597

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 584597 Page 2 of 4 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time High Rad Testing Batch 2285173 TPU: +/-4.54 +/-4.45 QC1205130944 LCS Actinium-228 U 5.59 pCi/g HXB2 07/05/22 17:17 Uncert: +/-14.1 TPU: +/-14.4 Americium-241 2730 2790 pCi/g 102 (75%-125%) Uncert: +/-69.5 TPU: +/-311 Bismuth-211 U 1.50 pCi/g Uncert: +/-19.1 TPU: +/-19.2 Bismuth-212 U 20.3 pCi/g Uncert: +/-36.0 TPU: +/-37.2 Bismuth-214 U 1.27 pCi/g Uncert: +/-5.91 TPU: +/-5.94 Cesium-134 U -1.33 pCi/g Uncert: +/-3.17 TPU: +/-3.23 Cesium-137 804 763 pCi/g 95 (75%-125%) Uncert: +/-23.9 TPU: +/-73.7 Cobalt-60 317 318 pCi/g 101 (75%-125%) Uncert: +/-17.7 TPU: +/-33.8 Europium-152 U -6.17 pCi/g Uncert: +/-8.65 TPU: +/-9.11 Europium-154 U 2.95 pCi/g Uncert: +/-5.37 TPU: +/-5.54 Lead-212 U 0.862 pCi/g Uncert: +/-5.26 TPU: +/-5.28 Lead-214 U 1.35 pCi/g Uncert: +/-6.82 TPU: +/-6.85 Potassium-40 U 1.39 pCi/g Uncert: +/-18.6 TPU: +/-18.6 Thallium-208 U 0.730 pCi/g Uncert: +/-3.18 TPU: +/-3.20 QC1205130942 MB Actinium-228 U -0.135 pCi/g HXB2 07/05/22 17:17 Page 6 of 14 SDG: 584597

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 584597 Page 3 of 4 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time High Rad Testing Batch 2285173 Uncert: +/-3.26 TPU: +/-3.26 Americium-241 U -0.677 pCi/g Uncert: +/-1.41 TPU: +/-1.45 Bismuth-211 U -1.91 pCi/g Uncert: +/-4.96 TPU: +/-5.04 Bismuth-212 U -5.31 pCi/g Uncert: +/-10.7 TPU: +/-10.9 Bismuth-214 U 0.336 pCi/g Uncert: +/-2.06 TPU: +/-2.07 Cesium-134 U 0.148 pCi/g Uncert: +/-0.779 TPU: +/-0.782 Cesium-137 U 0.773 pCi/g Uncert: +/-0.709 TPU: +/-0.793 Cobalt-60 U 0.483 pCi/g Uncert: +/-0.849 TPU: +/-0.878 Europium-152 U 0.734 pCi/g Uncert: +/-1.83 TPU: +/-1.86 Europium-154 U 0.589 pCi/g Uncert: +/-1.85 TPU: +/-1.87 Lead-212 U -0.821 pCi/g Uncert: +/-1.32 TPU: +/-1.37 Lead-214 U -0.917 pCi/g Uncert: +/-1.81 TPU: +/-1.86 Potassium-40 U 7.83 pCi/g Uncert: +/-13.6 TPU: +/-13.6 Thallium-208 U 0.499 pCi/g Uncert: +/-1.17 TPU: +/-1.17 Notes: TPU and Counting Uncertainty are calculated at the 95% confidence level (1.96-sigma). The Qualifiers in this report are defined as follows:

 **     Analyte is a Tracer compound Page 7 of 14 SDG: 584597

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 584597 Page 4 of 4 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time

<       Result is less than value reported
>       Result is greater than value reported BD      Results are either below the MDC or tracer recovery is low FA      Failed analysis.

H Analytical holding time was exceeded J See case narrative for an explanation J Value is estimated K Analyte present. Reported value may be biased high. Actual value is expected to be lower. L Analyte present. Reported value may be biased low. Actual value is expected to be higher. M M if above MDC and less than LLD M REMP Result > MDC/CL and < RDL N/A RPD or %Recovery limits do not apply. N1 See case narrative ND Analyte concentration is not detected above the detection limit NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER. R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD. UI Gamma Spectroscopy--Uncertain identification UJ Gamma Spectroscopy--Uncertain identification UL Not considered detected. The associated number is the reported concentration, which may be inaccurate due to a low bias. X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y Other specific qualifiers were required to properly define the results. Consult case narrative.

^       RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry.

h Preparation or preservation holding time was exceeded N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more or %RPD not applicable.

** Indicates analyte is a surrogate/tracer compound.
^ The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptence criteria when the sample is greater than five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the RL is used to evaluate the DUP result.

For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations. Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary. Page 8 of 14 SDG: 584597

Page 9 of 14 SDG: 584597 ZS-WM-131 S<i?4S'11 Revision 0 Information Use Attachment l - Chain-of-Custody_FQrm Sample ID Matrix Sample Type Sample Container Sample Date Sample Analysis Preservative Remarks Time Type Vol Unit Type Qty Ll -12201C-FIGC-201-CV CONCRETE CONCRETE 13.25 grams NIA l 06/15/2022 0940 NIA NIA l NIA NIA I NIA NIA I NIA NIA I NIA NIA I NIA NIA I NIA NIA I NIA Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: Airbi!l Number: GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 O7-. Relinquished by: Date (mm/dd/yyyy): Time: Received by: Date: (mm/dd/yyyy): Time: f?/J-, ~ ,.J F, I?, r..k~,f o1o/1 >rlt(itl tb<>O frcl Gt:. l n(),-l 06/Js/201,.1-- {600 Relinquished by: Date (mrnldd/yyyy): Time: Receiv/ ~ Jl~ Date: (rrlm/ddfyyyy):

                                                                                                                                                              ,l.1al2z Time:

VIS Comments: / of

SDG/AR/COC/Work Order: Date Received: Courier Other Carrier and Tracking Number Suspected Hazard Information  ;!! ~ ~If Net Counts> lOOcpm on samples not mm'ke<l "radioacrh*e". contact the Radiation Safety Group for fut1her investigation. Hazard Class Shipped: UN#:  :;;?- A)Shi e<l as a DOT Hazardous? If UN2910, Is the Radioactive Shipment Survey Compliant? B) Did rhe diem designate the samples arc to he COC notation or radioactive stickers on containers equal client desi,gnation. received as radioactive'! C) Did tile RSO classify the samples as Maximum Net Counts Observed*

• r
• d Counts - Area Background Counts): (/

radioactive? Classified as: Rad l Rad 3 D) Did the client <lesi rnte sam les are hazardous? If Dor Eis yes. select Hazards below. PCB's Flammable Foreign Soil RCRA Asbestos Beryllium Other: E) Di<l the RSO i<lenti ossihle hazards? Sample Receipt Criteria Comments/Qualifiers (Required for Nou*Confonniug Items) Shipping containers received intact and Circle Applicable: Seals broken Damuge<l container Leaking container Other (describe) scaled? Chain of custody documents included Circle Applicable; Clicn1 contnctcd and provided COC COC created upon receipt 2 with shipment'? Preservation McthoJ: Wet kc kc Packs Other: 3 Samples requiring cold preservation *all temperatures are recorded in Celsius within (0 < 6 derr. C)?* Daily check performed and passed on IR Temperature Device Serial#: _ _..,.,'----~ 4 Secondary Temperature Device Serial# (If Applicable): temperature gun? Circle Applicable: Seals hrokcn Damaged container Leaking container Other (de.scribe) 5 Sample containers intact and s,;aled*' Samples requiring chemical preservation Sample ID's nnd Conrnincrs Affected: 6 at proper pH? ff Preservation added. I.ot#: ff Yes. are Encores or Soil Kits present for solids? Yes_ No_ *NA_flf yes. take to VOA Free1.er) Do any samples require Volatile o liquid VOA vials contain acid preservation? Yes_ No_ NA_(lfunknown. select No) 7 Are liquid VOA vials free ofheadspace? Yes_ No_ NA_ Analysis? Sample fD's and containers affected: lD's and tests affected: 8 Samples received within holding time? Sample !D's on COC match !D's on [D'.s an<l conrniners affet:te<l: 9 bottles? Dare & time on COC match date & time Circle Applicable: No dates on containers No times on containers COC missing info Other (describe) 10 on bottles? Circle Applicable: No container count on COC Other (describe) Are sample containers identifiable as 12 GEL rovided b use of GEL labels' COC form is properly signed in Not relinquished Other (describe) 13 relinquished/received sections? Comments (Use Continuation Fonn if needed): of GL-CHL-SR-001 Rev 7 Page 10 of 14 SDG: 584597

Page 11 of 14 SDG: 584597 List of current GEL Certifications as of 06 July 2022 State Certification Alabama 42200 Alaska 17018 Alaska Drinking Water SC00012 Arkansas 880651 CLIA 42D0904046 California 2940 Colorado SC00012 Connecticut PH0169 DoD ELAP/ ISO17025 A2LA 2567.01 Florida NELAP E87156 Foreign Soils Permit P3301500283, P3301500253 Georgia SC00012 Georgia SDWA 967 Hawaii SC00012 Idaho SC00012 Illinois NELAP 200029 Indiana CSC01 Kansas NELAP E10332 Kentucky SDWA 90129 Kentucky Wastewater 90129 Louisiana Drinking Water LA024 Louisiana NELAP 03046 (AI33904) Maine 2019020 Maryland 270 Massachusetts MSC012 Massachusetts PFAS Approv Letter Michigan 9976 Mississippi SC00012 Nebraska NEOS2613 Nevada SC0001220225 New Hampshire NELAP 2054 New Jersey NELAP SC002 New Mexico SC00012 New York NELAP 11501 North Carolina 233 North Carolina SDWA 45709 North Dakota R158 Oklahoma 2019165 Pennsylvania NELAP 6800485 Puerto Rico SC00012 S. Carolina Radiochem 10120002 Sanitation Districts of L 9255651 South Carolina Chemistry 10120001 Tennessee TN 02934 Texas NELAP T1047042352220 Utah NELAP SC00012202136 Vermont VT87156 Virginia NELAP 460202 Washington C780 Page 12 of 14 SDG: 584597

Radiochemistry Technical Case Narrative Zion Solutions SDG #: 584597 Product: Gammaspec, Gamma, Solid (Requested List) Analytical Method: DOE HASL 300, 4.5.2.3/Ga-01-R Analytical Procedure: GL-RAD-A-013 REV# 27 Analytical Batch: 2285173 Preparation Method: Dry Soil Prep Preparation Procedure: GL-RAD-A-021 REV# 24 Preparation Batch: 2285165 Composite Preparation Method: GEL Prep Method Composite Preparation Procedure: GL-RAD-A-026 REV# 18 Composite Preparation Batch: 2284292 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 584597001 L1-12201C-FIGS-201-CV 1205130942 Method Blank (MB) 1205130943 584597001(L1-12201C-FIGS-201-CV) Sample Duplicate (DUP) 1205130944 Laboratory Control Sample (LCS) The samples in this SDG were analyzed on a "dry weight" basis. Data Summary: All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions. Quality Control (QC) Information RDL Met Samples (See Below) did not meet the detection limits due to limited sample volume. Sample Analyte Value 1205130942 (MB) Cesium-134 Result 0.148 < MDA 1.35 > RDL 0.1137 pCi/g Cesium-137 Result 0.773 < MDA 1.41 > RDL 0.1984 pCi/g Cobalt-60 Result 0.483 < MDA 1.68 > RDL 0.0881 pCi/g Europium-152 Result 0.734 < MDA 3.43 > RDL 1.074 pCi/g Europium-154 Result 0.589 < MDA 3.69 > RDL 0.9969 pCi/g 1205130943 Americium-241 Result 33 < MDA 36.1 > RDL 13.36 pCi/g (L1-12201C-FIGS-201-CVDUP) Cesium-134 Result -0.39 < MDA 1.56 > RDL 0.1137 pCi/g Page 13 of 14 SDG: 584597

Europium-152 Result 3.51 < MDA 30.8 > RDL 1.074 pCi/g Europium-154 Result 0.136 < MDA 4.49 > RDL 0.9969 pCi/g 584597001 (L1-12201C-FIGS-201-CV) Americium-241 Result 1.36 < MDA 36.4 > RDL 13.36 pCi/g Result -0.232 < MDA 1.67 > RDL 0.1137 Cesium-134 pCi/g Europium-152 Result -9.77 < MDA 30.5 > RDL 1.074 pCi/g Europium-154 Result 0.132 < MDA 4.6 > RDL 0.9969 pCi/g Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative. Page 14 of 14 SDG: 584597

July 13, 2022 Mr. Gerry Wood Zion Solutions 100 Shiloh Blvd. Zion, Illinois 60099 Re: Zion Solutions Work Order: 585604

Dear Mr. Wood:

GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the sample(s) we received on July 11, 2022. This original data report has been prepared and reviewed in accordance with GELs standard operating procedures. Test results for NELAP or ISO 17025 accredited tests are verified to meet the requirements of those standards, with any exceptions noted. The results reported relate only to the items tested and to the sample as received by the laboratory. These results may not be reproduced except as full reports without approval by the laboratory. Copies of GELs accreditations and certifications can be found on our website at www.gel.com. Our policy is to provide high quality, personalized analytical services to enable you to meet your analytical needs on time every time. We trust that you will find everything in order and to your satisfaction. If you have any questions, please do not hesitate to call me at (843) 556-8171, ext. 1605. Sincerely, Marcellas PM_SIGN_HERE Knight for Zachary Worsham Project Manager Purchase Order: 702793 Chain of Custody: ZS-WM-131 Enclosures Page 1 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 (843) 5568171 www.gel.com Certificate of Analysis Report for ENRG080 Zion Solutions (702793) Client SDG: 585604 GEL Work Order: 585604 The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

              ** Analyte is a Tracer compound
              ** Analyte is a surrogate compound U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.

UI Gamma SpectroscopyUncertain identification Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the Certificate of Analysis. The designation ND, if present, appears in the result column when the analyte concentration is not detected above the limit as defined in the U qualifier above. This data report has been prepared and reviewed in accordance with GEL Laboratories LLC standard operating procedures. Please direct any questions to your Project Manager, Zachary Worsham. Reviewed by USER_SIGN_HERE Page 2 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-201-SS Project: ENRG08001 Sample ID: 585604001 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: 3.51% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 U 0.254 +/-0.151 0.264 +/-0.191 pCi/g MXR1 07/12/22 1310 2288424 1 Bismuth-211 UI 0.000 +/-0.251 0.351 +/-0.352 pCi/g Bismuth-212 U 0.115 +/-0.514 0.609 +/-0.514 pCi/g Bismuth-214 0.191 +/-0.115 0.0949 +/-0.116 pCi/g Cesium-134 U -0.0137 +/-0.0296 0.0448 +/-0.0303 0.173 pCi/g Cesium-137 U 0.0176 +/-0.0261 0.0557 +/-0.0273 0.363 pCi/g Cobalt-60 U 0.0112 +/-0.0171 0.0445 +/-0.0178 0.109 pCi/g Europium-152 U 0.0199 +/-0.0558 0.108 +/-0.0565 0.869 pCi/g Europium-154 U -0.0440 +/-0.0856 0.158 +/-0.0880 0.799 pCi/g Lead-212 0.246 +/-0.0670 0.0581 +/-0.0701 pCi/g Lead-214 0.196 +/-0.0909 0.0729 +/-0.0923 pCi/g Potassium-40 10.2 +/-1.22 0.285 +/-1.53 pCi/g Thallium-208 0.100 +/-0.0513 0.0428 +/-0.0520 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 3 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-201-SS Project: ENRG08001 Sample ID: 585604001 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 4 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-202-SS Project: ENRG08001 Sample ID: 585604002 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: 3.99% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 UI 0.000 +/-0.144 0.214 +/-0.183 pCi/g MXR1 07/12/22 1311 2288424 1 Bismuth-211 UI 0.000 +/-0.440 0.182 +/-0.443 pCi/g Bismuth-212 U 0.00136 +/-0.542 0.440 +/-0.542 pCi/g Bismuth-214 0.179 +/-0.0827 0.0485 +/-0.0841 pCi/g Cesium-134 U 0.00774 +/-0.0183 0.0376 +/-0.0187 0.173 pCi/g Cesium-137 U 0.00749 +/-0.0150 0.0316 +/-0.0154 0.363 pCi/g Cobalt-60 U 0.00805 +/-0.0215 0.0418 +/-0.0219 0.109 pCi/g Europium-152 U 0.0252 +/-0.0425 0.0895 +/-0.0440 0.869 pCi/g Europium-154 U -0.0308 +/-0.0576 0.105 +/-0.0593 0.799 pCi/g Lead-212 0.168 +/-0.0728 0.0523 +/-0.0743 pCi/g Lead-214 0.240 +/-0.0856 0.113 +/-0.0881 pCi/g Potassium-40 12.2 +/-0.998 0.301 +/-1.56 pCi/g Thallium-208 0.0910 +/-0.0381 0.0270 +/-0.0389 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 5 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-202-SS Project: ENRG08001 Sample ID: 585604002 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 6 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FQGS-202-SS Project: ENRG08001 Sample ID: 585604003 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: 4.16% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.295 +/-0.172 0.140 +/-0.174 pCi/g MXR1 07/12/22 1347 2288424 1 Bismuth-211 UI 0.000 +/-0.230 0.336 +/-0.331 pCi/g Bismuth-212 U 0.137 +/-0.300 0.602 +/-0.307 pCi/g Bismuth-214 0.201 +/-0.0862 0.0643 +/-0.0878 pCi/g Cesium-134 U 0.00775 +/-0.0206 0.0421 +/-0.0209 0.173 pCi/g Cesium-137 U 0.00976 +/-0.0162 0.0351 +/-0.0168 0.363 pCi/g Cobalt-60 U 0.0318 +/-0.0245 0.0502 +/-0.0285 0.109 pCi/g Europium-152 U 0.00350 +/-0.0481 0.0973 +/-0.0481 0.869 pCi/g Europium-154 U 0.00992 +/-0.0690 0.140 +/-0.0692 0.799 pCi/g Lead-212 0.171 +/-0.0666 0.0662 +/-0.0686 pCi/g Lead-214 0.189 +/-0.0833 0.0798 +/-0.0850 pCi/g Potassium-40 10.1 +/-1.03 0.363 +/-1.45 pCi/g Thallium-208 0.0698 +/-0.0440 0.0388 +/-0.0443 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 7 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FQGS-202-SS Project: ENRG08001 Sample ID: 585604003 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 8 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-203-SS Project: ENRG08001 Sample ID: 585604004 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: 2.25% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 UI 0.000 +/-0.136 0.243 +/-0.230 pCi/g MXR1 07/12/22 1347 2288424 1 Bismuth-211 UI 0.000 +/-0.279 0.294 +/-0.330 pCi/g Bismuth-212 UI 0.000 +/-0.408 0.456 +/-0.410 pCi/g Bismuth-214 UI 0.000 +/-0.0904 0.133 +/-0.140 pCi/g Cesium-134 U -0.00189 +/-0.0199 0.0386 +/-0.0199 0.173 pCi/g Cesium-137 U -0.00957 +/-0.0204 0.0364 +/-0.0208 0.363 pCi/g Cobalt-60 U 0.00347 +/-0.0246 0.0496 +/-0.0246 0.109 pCi/g Europium-152 U 0.0192 +/-0.0490 0.0973 +/-0.0498 0.869 pCi/g Europium-154 U 0.0290 +/-0.0732 0.151 +/-0.0744 0.799 pCi/g Lead-212 0.259 +/-0.0643 0.0503 +/-0.0685 pCi/g Lead-214 0.139 +/-0.101 0.0643 +/-0.102 pCi/g Potassium-40 9.85 +/-0.980 0.282 +/-1.35 pCi/g Thallium-208 0.0684 +/-0.0533 0.0310 +/-0.0536 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 9 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-203-SS Project: ENRG08001 Sample ID: 585604004 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 10 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-204-SS Project: ENRG08001 Sample ID: 585604005 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: 6.09% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.253 +/-0.133 0.123 +/-0.135 pCi/g MXR1 07/12/22 1348 2288424 1 Bismuth-211 UI 0.000 +/-0.275 0.303 +/-0.433 pCi/g Bismuth-212 U 0.248 +/-0.258 0.558 +/-0.282 pCi/g Bismuth-214 UI 0.000 +/-0.0864 0.111 +/-0.119 pCi/g Cesium-134 U 0.00717 +/-0.0205 0.0421 +/-0.0207 0.173 pCi/g Cesium-137 U 0.0103 +/-0.0233 0.0421 +/-0.0238 0.363 pCi/g Cobalt-60 U -0.00615 +/-0.0205 0.0383 +/-0.0207 0.109 pCi/g Europium-152 U 0.0113 +/-0.0434 0.0854 +/-0.0437 0.869 pCi/g Europium-154 U 0.00397 +/-0.0670 0.130 +/-0.0670 0.799 pCi/g Lead-212 0.248 +/-0.0658 0.0442 +/-0.0687 pCi/g Lead-214 0.265 +/-0.0997 0.0600 +/-0.102 pCi/g Potassium-40 10.2 +/-0.940 0.400 +/-1.28 pCi/g Thallium-208 0.109 +/-0.0447 0.0315 +/-0.0458 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 11 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-204-SS Project: ENRG08001 Sample ID: 585604005 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 12 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-204-SB Project: ENRG08001 Sample ID: 585604006 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: 9.55% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.487 +/-0.214 0.116 +/-0.219 pCi/g MXR1 07/12/22 1349 2288424 1 Bismuth-211 UI 0.000 +/-0.254 0.351 +/-0.586 pCi/g Bismuth-212 UI 0.000 +/-0.449 0.480 +/-0.452 pCi/g Bismuth-214 0.294 +/-0.0865 0.0672 +/-0.0902 pCi/g Cesium-134 U -0.00443 +/-0.0190 0.0362 +/-0.0191 0.173 pCi/g Cesium-137 UI 0.000 +/-0.0277 0.0338 +/-0.0279 0.363 pCi/g Cobalt-60 U 0.00949 +/-0.0181 0.0381 +/-0.0186 0.109 pCi/g Europium-152 U 0.0587 +/-0.0766 0.0878 +/-0.0813 0.869 pCi/g Europium-154 U 0.0265 +/-0.0643 0.127 +/-0.0654 0.799 pCi/g Lead-212 0.384 +/-0.0592 0.0439 +/-0.0672 pCi/g Lead-214 0.418 +/-0.0922 0.0577 +/-0.0983 pCi/g Potassium-40 12.8 +/-0.991 0.343 +/-1.53 pCi/g Thallium-208 0.0752 +/-0.0391 0.0349 +/-0.0397 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 13 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-204-SB Project: ENRG08001 Sample ID: 585604006 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 14 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-205-SS Project: ENRG08001 Sample ID: 585604007 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: 3.01% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.183 +/-0.143 0.105 +/-0.144 pCi/g MXR1 07/12/22 1349 2288424 1 Bismuth-211 UI 0.000 +/-0.119 0.232 +/-0.166 pCi/g Bismuth-212 U 0.217 +/-0.391 0.346 +/-0.392 pCi/g Bismuth-214 0.190 +/-0.0729 0.0565 +/-0.0750 pCi/g Cesium-134 U 0.0274 +/-0.0162 0.0355 +/-0.0205 0.173 pCi/g Cesium-137 U -0.0142 +/-0.0153 0.0260 +/-0.0166 0.363 pCi/g Cobalt-60 U -0.00657 +/-0.0165 0.0303 +/-0.0167 0.109 pCi/g Europium-152 U 0.0153 +/-0.0401 0.0692 +/-0.0407 0.869 pCi/g Europium-154 U 0.0277 +/-0.0519 0.101 +/-0.0534 0.799 pCi/g Lead-212 0.193 +/-0.0429 0.0393 +/-0.0456 pCi/g Lead-214 0.122 +/-0.0712 0.0568 +/-0.0719 pCi/g Potassium-40 11.9 +/-0.821 0.322 +/-1.34 pCi/g Thallium-208 0.0643 +/-0.0341 0.0267 +/-0.0346 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 15 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-205-SS Project: ENRG08001 Sample ID: 585604007 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 16 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-206-SS Project: ENRG08001 Sample ID: 585604008 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: 2.39% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.298 +/-0.127 0.110 +/-0.131 pCi/g MXR1 07/12/22 1349 2288424 1 Bismuth-211 U 0.215 +/-0.118 0.237 +/-0.154 pCi/g Bismuth-212 0.505 +/-0.325 0.382 +/-0.328 pCi/g Bismuth-214 UI 0.000 +/-0.0612 0.0941 +/-0.0810 pCi/g Cesium-134 U 0.0233 +/-0.0198 0.0406 +/-0.0225 0.173 pCi/g Cesium-137 U 0.00244 +/-0.0142 0.0281 +/-0.0143 0.363 pCi/g Cobalt-60 U -0.00624 +/-0.0154 0.0288 +/-0.0156 0.109 pCi/g Europium-152 U -0.00484 +/-0.0366 0.0722 +/-0.0367 0.869 pCi/g Europium-154 U -0.00682 +/-0.0437 0.0858 +/-0.0438 0.799 pCi/g Lead-212 0.221 +/-0.0513 0.0419 +/-0.0543 pCi/g Lead-214 0.210 +/-0.0806 0.0574 +/-0.0825 pCi/g Potassium-40 9.16 +/-0.828 0.292 +/-1.18 pCi/g Thallium-208 0.0724 +/-0.0390 0.0250 +/-0.0396 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 17 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-206-SS Project: ENRG08001 Sample ID: 585604008 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 18 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-207-SS Project: ENRG08001 Sample ID: 585604009 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: 3.18% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.275 +/-0.145 0.115 +/-0.148 pCi/g MXR1 07/12/22 1350 2288424 1 Bismuth-211 UI 0.000 +/-0.219 0.255 +/-0.294 pCi/g Bismuth-212 U -0.0167 +/-0.214 0.361 +/-0.214 pCi/g Bismuth-214 0.204 +/-0.0694 0.0611 +/-0.0717 pCi/g Cesium-134 U 0.0249 +/-0.0245 0.0301 +/-0.0270 0.173 pCi/g Cesium-137 U 0.00868 +/-0.0134 0.0284 +/-0.0140 0.363 pCi/g Cobalt-60 U 0.00194 +/-0.0150 0.0313 +/-0.0151 0.109 pCi/g Europium-152 U 0.0194 +/-0.0342 0.0715 +/-0.0353 0.869 pCi/g Europium-154 U -0.0312 +/-0.0491 0.0880 +/-0.0512 0.799 pCi/g Lead-212 0.231 +/-0.0447 0.0428 +/-0.0487 pCi/g Lead-214 0.155 +/-0.0796 0.0565 +/-0.0806 pCi/g Potassium-40 10.9 +/-0.849 0.275 +/-1.33 pCi/g Thallium-208 0.0935 +/-0.0341 0.0251 +/-0.0350 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 19 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-207-SS Project: ENRG08001 Sample ID: 585604009 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 20 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-208-SS Project: ENRG08001 Sample ID: 585604010 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: 4.29% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.282 +/-0.162 0.145 +/-0.165 pCi/g MXR1 07/12/22 1351 2288424 1 Bismuth-211 UI 0.000 +/-0.319 0.360 +/-0.412 pCi/g Bismuth-212 U 0.231 +/-0.349 0.488 +/-0.350 pCi/g Bismuth-214 UI 0.000 +/-0.0916 0.137 +/-0.134 pCi/g Cesium-134 U -0.00291 +/-0.0215 0.0396 +/-0.0215 0.173 pCi/g Cesium-137 UI 0.000 +/-0.0569 0.0383 +/-0.0570 0.363 pCi/g Cobalt-60 U 0.0113 +/-0.0233 0.0498 +/-0.0239 0.109 pCi/g Europium-152 U 0.00145 +/-0.0463 0.0902 +/-0.0464 0.869 pCi/g Europium-154 U -0.00622 +/-0.0698 0.136 +/-0.0699 0.799 pCi/g Lead-212 0.325 +/-0.0722 0.0563 +/-0.0771 pCi/g Lead-214 0.206 +/-0.116 0.0712 +/-0.117 pCi/g Potassium-40 9.78 +/-1.05 0.394 +/-1.44 pCi/g Thallium-208 0.0944 +/-0.0422 0.0362 +/-0.0430 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 21 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-208-SS Project: ENRG08001 Sample ID: 585604010 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 22 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-208-SB Project: ENRG08001 Sample ID: 585604011 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: 5.18% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.211 +/-0.132 0.124 +/-0.133 pCi/g MXR1 07/12/22 1520 2288424 1 Bismuth-211 UI 0.000 +/-0.243 0.295 +/-0.385 pCi/g Bismuth-212 U 0.0192 +/-0.289 0.570 +/-0.289 pCi/g Bismuth-214 0.171 +/-0.0845 0.0651 +/-0.0859 pCi/g Cesium-134 U 0.0292 +/-0.0292 0.0437 +/-0.0322 0.173 pCi/g Cesium-137 U 0.0217 +/-0.0221 0.0469 +/-0.0242 0.363 pCi/g Cobalt-60 U 0.0120 +/-0.0209 0.0477 +/-0.0216 0.109 pCi/g Europium-152 U 0.00418 +/-0.0433 0.0817 +/-0.0433 0.869 pCi/g Europium-154 U -0.0175 +/-0.0620 0.122 +/-0.0626 0.799 pCi/g Lead-212 0.168 +/-0.0698 0.0568 +/-0.0711 pCi/g Lead-214 0.237 +/-0.0883 0.0731 +/-0.0903 pCi/g Potassium-40 9.57 +/-1.03 0.447 +/-1.33 pCi/g Thallium-208 0.0724 +/-0.0413 0.0369 +/-0.0419 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 23 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-208-SB Project: ENRG08001 Sample ID: 585604011 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 24 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-209-SS Project: ENRG08001 Sample ID: 585604012 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: 1.65% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.473 +/-0.200 0.127 +/-0.205 pCi/g MXR1 07/12/22 1521 2288424 1 Bismuth-211 UI 0.000 +/-0.287 0.335 +/-0.368 pCi/g Bismuth-212 U 0.246 +/-0.295 0.629 +/-0.316 pCi/g Bismuth-214 0.195 +/-0.110 0.0700 +/-0.111 pCi/g Cesium-134 U -0.00976 +/-0.0208 0.0339 +/-0.0213 0.173 pCi/g Cesium-137 U 0.00364 +/-0.0217 0.0427 +/-0.0218 0.363 pCi/g Cobalt-60 U 0.00939 +/-0.0214 0.0474 +/-0.0218 0.109 pCi/g Europium-152 U -0.0274 +/-0.0463 0.0777 +/-0.0480 0.869 pCi/g Europium-154 U -0.0305 +/-0.0799 0.144 +/-0.0811 0.799 pCi/g Lead-212 0.254 +/-0.0676 0.0460 +/-0.0710 pCi/g Lead-214 0.182 +/-0.104 0.0741 +/-0.105 pCi/g Potassium-40 10.4 +/-1.11 0.416 +/-1.49 pCi/g Thallium-208 0.108 +/-0.0468 0.0349 +/-0.0477 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 25 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-209-SS Project: ENRG08001 Sample ID: 585604012 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 26 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-210-SS Project: ENRG08001 Sample ID: 585604013 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: .502% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.219 +/-0.143 0.129 +/-0.144 pCi/g MXR1 07/12/22 1521 2288424 1 Bismuth-211 UI 0.000 +/-0.199 0.288 +/-0.363 pCi/g Bismuth-212 0.532 +/-0.388 0.422 +/-0.391 pCi/g Bismuth-214 0.116 +/-0.0708 0.0622 +/-0.0715 pCi/g Cesium-134 U 0.00320 +/-0.0173 0.0352 +/-0.0174 0.173 pCi/g Cesium-137 U 0.0165 +/-0.0165 0.0341 +/-0.0181 0.363 pCi/g Cobalt-60 U 0.00720 +/-0.0169 0.0369 +/-0.0172 0.109 pCi/g Europium-152 U 0.00184 +/-0.0403 0.0808 +/-0.0404 0.869 pCi/g Europium-154 U -0.0178 +/-0.0630 0.117 +/-0.0635 0.799 pCi/g Lead-212 0.313 +/-0.0610 0.0447 +/-0.0659 pCi/g Lead-214 0.241 +/-0.0720 0.0533 +/-0.0746 pCi/g Potassium-40 11.3 +/-0.937 0.295 +/-1.42 pCi/g Thallium-208 0.0734 +/-0.0450 0.0248 +/-0.0454 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 27 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-210-SS Project: ENRG08001 Sample ID: 585604013 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 28 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-211-SS Project: ENRG08001 Sample ID: 585604014 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: 2.56% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 UI 0.000 +/-0.288 0.348 +/-0.355 pCi/g MXR1 07/12/22 1521 2288424 1 Bismuth-211 U 0.377 +/-0.208 0.457 +/-0.270 pCi/g Bismuth-212 U 0.199 +/-0.458 0.931 +/-0.467 pCi/g Bismuth-214 U 0.135 +/-0.143 0.184 +/-0.156 pCi/g Cesium-134 U 0.0150 +/-0.0388 0.0780 +/-0.0394 0.173 pCi/g Cesium-137 U 0.0320 +/-0.0325 0.0713 +/-0.0357 0.363 pCi/g Cobalt-60 U 0.00653 +/-0.0339 0.0716 +/-0.0340 0.109 pCi/g Europium-152 U -0.000709 +/-0.0563 0.106 +/-0.0563 0.869 pCi/g Europium-154 U 0.0450 +/-0.0972 0.214 +/-0.0994 0.799 pCi/g Lead-212 0.193 +/-0.0874 0.0750 +/-0.0887 pCi/g Lead-214 0.311 +/-0.153 0.106 +/-0.155 pCi/g Potassium-40 11.8 +/-1.37 0.451 +/-1.73 pCi/g Thallium-208 UI 0.000 +/-0.0572 0.0506 +/-0.0574 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 29 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-211-SS Project: ENRG08001 Sample ID: 585604014 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 30 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-212-SS Project: ENRG08001 Sample ID: 585604015 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: .367% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 U 0.228 +/-0.182 0.313 +/-0.210 pCi/g MXR1 07/12/22 1522 2288424 1 Bismuth-211 U 0.219 +/-0.670 0.234 +/-0.671 pCi/g Bismuth-212 U -0.00959 +/-0.326 0.643 +/-0.326 pCi/g Bismuth-214 UI 0.000 +/-0.0933 0.177 +/-0.128 pCi/g Cesium-134 U 0.00461 +/-0.0318 0.0627 +/-0.0318 0.173 pCi/g Cesium-137 U 0.0157 +/-0.0351 0.0393 +/-0.0351 0.363 pCi/g Cobalt-60 U -0.0126 +/-0.0255 0.0485 +/-0.0262 0.109 pCi/g Europium-152 U 0.0326 +/-0.0645 0.130 +/-0.0662 0.869 pCi/g Europium-154 U 0.0356 +/-0.0828 0.190 +/-0.0844 0.799 pCi/g Lead-212 0.305 +/-0.0735 0.0520 +/-0.0778 pCi/g Lead-214 0.188 +/-0.116 0.152 +/-0.117 pCi/g Potassium-40 10.7 +/-1.32 0.391 +/-1.63 pCi/g Thallium-208 0.127 +/-0.0679 0.0434 +/-0.0687 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 31 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-212-SS Project: ENRG08001 Sample ID: 585604015 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 32 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-213-SS Project: ENRG08001 Sample ID: 585604016 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: 2.76% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 UI 0.000 +/-0.188 0.139 +/-0.189 pCi/g MXR1 07/12/22 1536 2288424 1 Bismuth-211 UI 0.000 +/-0.218 0.324 +/-0.320 pCi/g Bismuth-212 UI 0.000 +/-0.694 0.426 +/-0.699 pCi/g Bismuth-214 0.221 +/-0.107 0.0616 +/-0.109 pCi/g Cesium-134 U 0.0168 +/-0.0227 0.0493 +/-0.0239 0.173 pCi/g Cesium-137 U 0.0272 +/-0.0311 0.0430 +/-0.0312 0.363 pCi/g Cobalt-60 U 0.00473 +/-0.0228 0.0490 +/-0.0229 0.109 pCi/g Europium-152 U -0.0135 +/-0.0508 0.0954 +/-0.0512 0.869 pCi/g Europium-154 U 0.00285 +/-0.0809 0.162 +/-0.0809 0.799 pCi/g Lead-212 0.193 +/-0.0645 0.0578 +/-0.0667 pCi/g Lead-214 0.185 +/-0.0791 0.0770 +/-0.0807 pCi/g Potassium-40 9.44 +/-1.09 0.379 +/-1.43 pCi/g Thallium-208 0.0568 +/-0.0455 0.0415 +/-0.0458 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 33 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-213-SS Project: ENRG08001 Sample ID: 585604016 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 34 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-214-SS Project: ENRG08001 Sample ID: 585604017 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: .834% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.296 +/-0.248 0.161 +/-0.249 pCi/g MXR1 07/12/22 1522 2288424 1 Bismuth-211 U 0.0679 +/-0.529 0.186 +/-0.533 pCi/g Bismuth-212 U -0.0275 +/-0.353 0.663 +/-0.353 pCi/g Bismuth-214 0.220 +/-0.101 0.0730 +/-0.103 pCi/g Cesium-134 U 0.00292 +/-0.0243 0.0438 +/-0.0243 0.173 pCi/g Cesium-137 U 0.0118 +/-0.0192 0.0421 +/-0.0200 0.363 pCi/g Cobalt-60 U -0.000725 +/-0.0254 0.0511 +/-0.0254 0.109 pCi/g Europium-152 U -0.0125 +/-0.0481 0.0947 +/-0.0484 0.869 pCi/g Europium-154 UI 0.000 +/-0.121 0.174 +/-0.148 0.799 pCi/g Lead-212 0.283 +/-0.0639 0.0493 +/-0.0682 pCi/g Lead-214 0.225 +/-0.101 0.137 +/-0.103 pCi/g Potassium-40 10.3 +/-1.16 0.412 +/-1.45 pCi/g Thallium-208 0.0719 +/-0.0487 0.0374 +/-0.0492 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 35 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-214-SS Project: ENRG08001 Sample ID: 585604017 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 36 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-215-SS Project: ENRG08001 Sample ID: 585604018 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: .545% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 UI 0.000 +/-0.140 0.247 +/-0.186 pCi/g MXR1 07/12/22 1523 2288424 1 Bismuth-211 U 0.236 +/-0.137 0.297 +/-0.174 pCi/g Bismuth-212 U 0.102 +/-0.254 0.533 +/-0.258 pCi/g Bismuth-214 0.168 +/-0.0903 0.0794 +/-0.0913 pCi/g Cesium-134 U 0.00569 +/-0.0258 0.0511 +/-0.0259 0.173 pCi/g Cesium-137 UI 0.000 +/-0.0495 0.0316 +/-0.0501 0.363 pCi/g Cobalt-60 U 0.0175 +/-0.0188 0.0466 +/-0.0204 0.109 pCi/g Europium-152 U -0.0143 +/-0.0525 0.0887 +/-0.0529 0.869 pCi/g Europium-154 U -0.0169 +/-0.0737 0.140 +/-0.0741 0.799 pCi/g Lead-212 0.310 +/-0.0798 0.0479 +/-0.0841 pCi/g Lead-214 0.182 +/-0.0926 0.0726 +/-0.0939 pCi/g Potassium-40 9.95 +/-1.04 0.301 +/-1.45 pCi/g Thallium-208 0.0602 +/-0.0401 0.0349 +/-0.0404 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 37 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-215-SS Project: ENRG08001 Sample ID: 585604018 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 38 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-216-SS Project: ENRG08001 Sample ID: 585604019 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: 2.77% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.358 +/-0.259 0.143 +/-0.261 pCi/g MXR1 07/12/22 1523 2288424 1 Bismuth-211 UI 0.000 +/-0.233 0.301 +/-0.360 pCi/g Bismuth-212 U 0.301 +/-0.406 0.630 +/-0.407 pCi/g Bismuth-214 UI 0.000 +/-0.0706 0.119 +/-0.120 pCi/g Cesium-134 U 0.0141 +/-0.0208 0.0450 +/-0.0218 0.173 pCi/g Cesium-137 U 0.00925 +/-0.0218 0.0445 +/-0.0223 0.363 pCi/g Cobalt-60 U 0.0200 +/-0.0180 0.0456 +/-0.0202 0.109 pCi/g Europium-152 U -0.00192 +/-0.0456 0.0924 +/-0.0456 0.869 pCi/g Europium-154 U -0.0267 +/-0.0863 0.160 +/-0.0872 0.799 pCi/g Lead-212 0.215 +/-0.102 0.0646 +/-0.104 pCi/g Lead-214 0.218 +/-0.0845 0.0677 +/-0.0864 pCi/g Potassium-40 10.5 +/-1.13 0.306 +/-1.53 pCi/g Thallium-208 0.0812 +/-0.0397 0.0423 +/-0.0403 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 39 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-216-SS Project: ENRG08001 Sample ID: 585604019 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 40 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-217-SS Project: ENRG08001 Sample ID: 585604020 Client ID: ENRG080 Matrix: Soil Collect Date: 22-JUN-22 Receive Date: 11-JUL-22 Collector: Client Moisture: 1.44% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.238 +/-0.179 0.130 +/-0.181 pCi/g MXR1 07/12/22 1523 2288424 1 Bismuth-211 U 0.0869 +/-0.448 0.161 +/-0.456 pCi/g Bismuth-212 U 0.0541 +/-0.267 0.534 +/-0.268 pCi/g Bismuth-214 0.153 +/-0.0884 0.0644 +/-0.0898 pCi/g Cesium-134 U 0.000535 +/-0.0186 0.0369 +/-0.0186 0.173 pCi/g Cesium-137 0.0660 +/-0.0412 0.0308 +/-0.0418 0.363 pCi/g Cobalt-60 U 0.0157 +/-0.0262 0.0423 +/-0.0272 0.109 pCi/g Europium-152 U -0.000376 +/-0.0357 0.0680 +/-0.0357 0.869 pCi/g Europium-154 U -0.00891 +/-0.0560 0.105 +/-0.0562 0.799 pCi/g Lead-212 0.273 +/-0.0603 0.0422 +/-0.0687 pCi/g Lead-214 0.264 +/-0.0786 0.116 +/-0.0820 pCi/g Potassium-40 10.9 +/-0.997 0.266 +/-1.37 pCi/g Thallium-208 0.0985 +/-0.0412 0.0266 +/-0.0424 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CXB7 07/11/22 1923 2288176 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Page 41 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: July 13, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FSGS-217-SS Project: ENRG08001 Sample ID: 585604020 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 42 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Report Date: July 13, 2022 Client : Zion Solutions Page 1 of 4 100 Shiloh Blvd. Zion, Illinois

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Mr. Gerry Wood Workorder: 585604 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 2288424 QC1205136956 585604001 DUP Actinium-228 U 0.254 U 0.203 pCi/g 0 N/A MXR1 07/12/22 15:25 Uncert: +/-0.151 +/-0.164 TPU: +/-0.191 +/-0.189 Bismuth-211 UI 0.000 UI 0.000 pCi/g 0 N/A Uncert: +/-0.251 +/-0.260 TPU: +/-0.352 +/-0.363 Bismuth-212 U 0.115 U 0.217 pCi/g 0 N/A Uncert: +/-0.514 +/-0.423 TPU: +/-0.514 +/-0.424 Bismuth-214 0.191 UI 0.000 pCi/g 48.6 (0% - 100%) Uncert: +/-0.115 +/-0.0885 TPU: +/-0.116 +/-0.113 Cesium-134 U -0.0137 U 0.00994 pCi/g 0 N/A Uncert: +/-0.0296 +/-0.0186 TPU: +/-0.0303 +/-0.0192 Cesium-137 U 0.0176 U -0.00768 pCi/g 0 N/A Uncert: +/-0.0261 +/-0.0180 TPU: +/-0.0273 +/-0.0183 Cobalt-60 U 0.0112 U -0.0163 pCi/g 0 N/A Uncert: +/-0.0171 +/-0.0198 TPU: +/-0.0178 +/-0.0211 Europium-152 U 0.0199 U 0.0179 pCi/g 0 N/A Uncert: +/-0.0558 +/-0.0476 TPU: +/-0.0565 +/-0.0483 Europium-154 U -0.0440 U 0.0905 pCi/g 0 N/A Uncert: +/-0.0856 +/-0.0757 TPU: +/-0.0880 +/-0.0864 Lead-212 0.246 0.259 pCi/g 5.11 (0%-20%) Uncert: +/-0.0670 +/-0.0584 TPU: +/-0.0701 +/-0.0620 Lead-214 0.196 0.201 pCi/g 2.37 (0% - 100%) Uncert: +/-0.0909 +/-0.0942 TPU: +/-0.0923 +/-0.0957 Potassium-40 10.2 10.9 pCi/g 6.82 (0%-20%) Uncert: +/-1.22 +/-0.984 TPU: +/-1.53 +/-1.39 Thallium-208 0.100 UI 0.000 pCi/g 96.6 (0% - 100%) Uncert: +/-0.0513 +/-0.0381 TPU: +/-0.0520 +/-0.0382 QC1205136957 LCS Americium-241 485 543 pCi/g 112 (75%-125%) MXR1 07/12/22 13:33 Page 43 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 585604 Page 2 of 4 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 2288424 Uncert: +/-13.4 TPU: +/-63.1 Actinium-228 U 1.75 pCi/g Uncert: +/-2.15 TPU: +/-2.29 Bismuth-211 U -3.14 pCi/g Uncert: +/-2.82 TPU: +/-3.16 Bismuth-212 U 2.69 pCi/g Uncert: +/-6.07 TPU: +/-6.19 Bismuth-214 U 0.339 pCi/g Uncert: +/-0.806 TPU: +/-0.821 Cesium-134 U -0.361 pCi/g Uncert: +/-0.544 TPU: +/-0.568 Cesium-137 157 153 pCi/g 97.3 (75%-125%) Uncert: +/-3.10 TPU: +/-13.4 Cobalt-60 75.1 74.1 pCi/g 98.7 (75%-125%) Uncert: +/-2.70 TPU: +/-7.78 Europium-152 U -0.164 pCi/g Uncert: +/-1.33 TPU: +/-1.33 Europium-154 U 0.785 pCi/g Uncert: +/-1.57 TPU: +/-1.61 Lead-212 U 0.539 pCi/g Uncert: +/-0.688 TPU: +/-0.731 Lead-214 U -0.209 pCi/g Uncert: +/-1.03 TPU: +/-1.03 Potassium-40 U 0.737 pCi/g Uncert: +/-1.87 TPU: +/-1.90 Thallium-208 U -0.00802 pCi/g Uncert: +/-0.448 TPU: +/-0.448 QC1205136955 MB Actinium-228 U -0.0241 pCi/g MXR1 07/12/2215:24 Uncert: +/-0.0472 TPU: +/-0.0485 Bismuth-211 U -0.00566 pCi/g Page 44 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 585604 Page 3 of 4 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 2288424 Uncert: +/-0.0703 TPU: +/-0.0703 Bismuth-212 U -0.0563 pCi/g Uncert: +/-0.149 TPU: +/-0.152 Bismuth-214 U -0.00723 pCi/g Uncert: +/-0.0256 TPU: +/-0.0258 Cesium-134 U -0.000576 pCi/g Uncert: +/-0.0112 TPU: +/-0.0112 Cesium-137 U -0.00297 pCi/g Uncert: +/-0.0122 TPU: +/-0.0123 Cobalt-60 U -0.0101 pCi/g Uncert: +/-0.0132 TPU: +/-0.0140 Europium-152 U 0.0189 pCi/g Uncert: +/-0.0259 TPU: +/-0.0274 Europium-154 U 0.0113 pCi/g Uncert: +/-0.0237 TPU: +/-0.0242 Lead-212 U 0.00143 pCi/g Uncert: +/-0.0235 TPU: +/-0.0235 Lead-214 U -0.00791 pCi/g Uncert: +/-0.0255 TPU: +/-0.0257 Potassium-40 U 0.00493 pCi/g Uncert: +/-0.190 TPU: +/-0.190 Thallium-208 U 0.0109 pCi/g Uncert: +/-0.0245 TPU: +/-0.0245 Notes: TPU and Counting Uncertainty are calculated at the 95% confidence level (1.96-sigma). The Qualifiers in this report are defined as follows:

 **    Analyte is a Tracer compound
 <     Result is less than value reported
 >     Result is greater than value reported BD    Results are either below the MDC or tracer recovery is low FA    Failed analysis.

H Analytical holding time was exceeded Page 45 of 56 SDG: 585604

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 585604 Page 4 of 4 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time J See case narrative for an explanation J Value is estimated K Analyte present. Reported value may be biased high. Actual value is expected to be lower. L Analyte present. Reported value may be biased low. Actual value is expected to be higher. M M if above MDC and less than LLD M REMP Result > MDC/CL and < RDL N/A RPD or %Recovery limits do not apply. N1 See case narrative ND Analyte concentration is not detected above the detection limit NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER. R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD. UI Gamma Spectroscopy--Uncertain identification UJ Gamma Spectroscopy--Uncertain identification UL Not considered detected. The associated number is the reported concentration, which may be inaccurate due to a low bias. X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y Other specific qualifiers were required to properly define the results. Consult case narrative.

^       RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry.

h Preparation or preservation holding time was exceeded N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more or %RPD not applicable.

** Indicates analyte is a surrogate/tracer compound.
^ The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptence criteria when the sample is greater than five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the RL is used to evaluate the DUP result.

For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations. Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary. Page 46 of 56 SDG: 585604

Page 47 of 56 SDG: 585604 ZS-WM-131 Revision 0 Information Use Attachment 1 - Chain-of-Custody Form 5f5 (.pOL\ Sample ID Matrix I Sample Sample Container Sample Date Sample I Analysis Type I Preservative I Remarks Type Vol Unit Type Qty I Time Ll-1220 IC-FSGS-201-SS SOIL SOIL 850.82 grams NIA I 6122/2022 0802 Gamma Spec I NIA I See comments L l-1220 I C-FSGS-202-SS SOIL SOIL 850.18 grams NIA I 6/22/2022 0805 Gamma Spec I NIA I See comments Ll-t2201C-FQGS-202-SS SOIL SOIL 850.63 grams NIA l 6/22/2022 0805 Gamma Spec I N/A I See comments L 1-1220 l C-FSGS-203-SS SOIL SOIL 850.37 grams NIA l 612212022 0809 Gamma Spec I NIA I See comments Ll-1220 I C-FSGS-204-SS SOIL SOIL 850.29 grams NIA I 6122/2022 0811 Gamma Spec I NIA I See comments U-12201 C-FSGS-204-SB SOIL SOIL 850.09 grams NIA 1 6/2212022 0830 Gamma Spec I NIA I See comments Ll-12201C-FSGS-205-SS SOIL SOIL 850.80 grams NIA 1 6/22/2022 0814 Gamma Spec I NIA I See comments L 1-1220 IC-FSGS-206-SS SOIL SOIL 850.66 grams NIA l 6122/2022 0817 GammaSpec I NIA I See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: I Airbill Number: GEL Laboratories, LLC 2040 Savage Road r z,, NA NA Charleston, SC 29407

                                                                                          ---                     I Received by:                         I Date: (mm/ddlvvvv):

Time: j Time'. 1-Time: X Eel 85) Comments Gamma Spec includes Cs137, Cs134, Co60 K-40, Bi-211/212/214, P 1 of

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Page 48 of 56 SDG: 585604 ZS-WM-131 Revision 0 Information Use Attachment 1 - Chain-of-Custody: Form si~ c.ooLJ Sample ID Matrix I Sample Sample Container Sample Date I Sample Analysis Type Preservative Remarks Type Vol Unit Type Qty I Time L 1-12201C-FSGS-207-SS SOIL SOIL 850.62 grams NIA l 6/22/2022 0823 Gamma Spee I NIA I See comment5 L 1-12201 C-FSGS-208-SS SOIL SOIL 850.35 grams NIA l 6122/2022 0826 Gamma Spec I NIA I See comments Ll-12201C-FSGS-208-SB SOIL SOIL 850.76 grams NIA I 6/2212022 0853 Gamma Spec I N/A I See comments Ll-1220 IC-FSGS-209-SS SOIL SOIL 850.37 grams NIA I 6/22/2022 0835 Gamma Spec I NIA I See comments Ll-12201C-FSGS-210-SS SOIL SOIL 850.00 grams NIA 1 6/2212022 0840 Gamma Spec I NIA I See comments Ll-12201C-FSGS-21 l-SS SOIL SOIL 850.52 grams NIA 1 6/22/2022 0845 Gamma Spec I NIA I See comments Ll-1220I C-FSGS-212-SS SOIL SOIL 850.33 grams NIA I 6122/2022 0850 Gamma Spec I NIA I See comments Ll-12201C-FSGS-213-SS SOIL SOIL 850.08 grams NIA I 6/22/2022 0903 GammaSpec I NIA I See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: l Airbill Number: GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 Comments Gamma Spec includes Cs137, Cs134, Co60 K-40, Bi-211/212/214, P

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Page 49 of 56 SDG: 585604 ZS-WM-131 Revision 0 Information Use An Enu-rgySo1ut/£Yt.14' Company Attachment 1 - Chain-of-Custody Form 5t--g5-(pO~ Sample ID I Matrix I Sample Type Sample Container Sample Date I Sample Time I Analysis Type l Preservative I Remarks Vol Unit Type Qty L l-1220 l C-FSGS-214-SS I SOIL SOIL 850.50 grams NIA l 6/22/2022 0858 Gamma Spec I NIA I See comments Ll-1220 l C-FSGS-215-SS I SOIL SOIL 850.09 grams NIA I 6/22/2022 0906 Gamma Spec I NIA I See comments L 1-1220 I C-FSGS-216-SS I SOIL SOIL 850.78 grams NIA I 6122/2022 0908 Gamma Spec I NIA I See comments Ll-12201C-FSGS-217-SS I SOIL SOIL 850.20 grams NIA 1 6/22/2022 0910 Gamma Spec I NIA I See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: Airbill Number: GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 Received by; Date: (mm/ddlyyyy): Time: Q Relinqui~K Comments Gamma Spec includes Cs 137, Cs134, Co60 K-40, Bi-211/212/214, P of Page 50 of 56 SDG: 585604 Survey#:2,02) 00~7 Description;, ghfi/lJJ;)~~ft~) .z.afr,dJ,tJI} Date:CiVcf}2cu.1.. ,Tire: 1340 crDf- W(,1,h v*iJ, c1m1J.f'cha l'r: , . , I r:1 ~ t:> Unit:/V}f)

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0 RWP Decon Recommended D Routine Shielding Recommended D lnvestigational Release Recommended D Release 181 None B) Other_ (specify) Other (specify) 5'h~fpinj5Urlii7

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                                                          ~ = Contact/ 30cm dose rates                   -~h ifill-wl!!_JJ..u/JJ: e2t115____                                                      ------------
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m!I /Laboratories LLC Received By:MVH Date Received: le: Courier Other Carrier and Tracking Number d}r)~()l . dgg~vices J1t5~0\8l:Co~l '2) -dL\Oc Suspected Hazard Information ~ i, *If Net Counts > IOOcpm on samples not marked "rndioactive", contact the Radiation Safety Group for further investigation. Hazard Class Shipped: UN#: If UN29 IO, Is the Radioactive Shipment Survey Compliant? Yes_ No_ A)Shi d as a DOT Hazardous? B) Did the client designate the samples arc to be COC notation or radioactive stickers on containers equal client designation. received as radioactive? C) Did the RSO classify the samples as CPM/mR/Hr radioactive? coc notation.or hawd labels on. C?ntnjncrs, cqu:Hclicnt designation. D) Did the client desi ate sam !es are hazardous? If Dor E is yes, select Hazards below. PCB's Flammable Foreign Soil RCRA Asbestos Beryllium Other: E) Did the RSO identi ssible hazards? Sample Receipt Criteria Comments/Qualifiers (Required for Non-Conforming Items) Circle Applicabte: Seals broken Damngcd contuiner Leaking container Other (describe) Shipping containers received intact and 1 scaled? Chain of custody documents included Circle Applicable: Client contnc1cd and provided COC COC created upon receipt 2 with shipment? Preservation Method: Wet Ice Ice Packs D,y ice 3 Samples requiring cold preservation *all temperatures are recorded in Celsius TEMP: _ _ __ within (0 !, 6 de . C)?* Daily check performed and passed on IR Temperature Device Serial #:.~IR~2~*=2~1_ _ _ __ 4 Secondary Temperature Device Serial# (If Applicable): temperature gun? Circle Applicable: Seals broken Damaged container Leaking container Other (describe} 5 Sample containers intact and sealed? Sample ID's and Containers Affected: Samples requiring chemical preservation 6 at proper pH? ff Preservation added. Lotti: i If Yes, nre Encores or Soil Kits present for solids? Ycs_ No_ NA_(lf yes, take 10 VOA Freezer) Do liquid VOA vials contain acid preservation? Yes_ No_ NA_(!funknown, select No) Do any samples require Volatile 7 Are liquid VOA vials free ofheadspace? Yes_ No_ NA_ Analysis? Sample ID's and containers affected:

                                                                      !D's and tests affected:

8 Samples received within holding time? Sample ID's on COC match ID's on !D's and containers affected: 9 bottles? Circle Applicable: No dates on containers No times on containers COC missing info Other (describe) Number of containers received match Circle Applicable: No container count on COC Other(describc) 11 number indicated on COC? Are sample containers identifiable as 12 GEL rovided b use of GEL labels? COC form is properly signed in Circle Applicable: Nol relinquished Other (describe) 13 relinquished/received sections? Comments (Use Continuation Form if needed): GL-CHL-SR-001 Rev 7 Page 51 of 56 SDG: 585604

List of current GEL Certifications as of 13 July 2022 State Certification Alabama 42200 Alaska 17018 Alaska Drinking Water SC00012 Arkansas 880651 CLIA 42D0904046 California 2940 Colorado SC00012 Connecticut PH0169 DoD ELAP/ ISO17025 A2LA 2567.01 Florida NELAP E87156 Foreign Soils Permit P3301500283, P3301500253 Georgia SC00012 Georgia SDWA 967 Hawaii SC00012 Idaho SC00012 Illinois NELAP 200029 Indiana CSC01 Kansas NELAP E10332 Kentucky SDWA 90129 Kentucky Wastewater 90129 Louisiana Drinking Water LA024 Louisiana NELAP 03046 (AI33904) Maine 2019020 Maryland 270 Massachusetts MSC012 Massachusetts PFAS Approv Letter Michigan 9976 Mississippi SC00012 Nebraska NEOS2613 Nevada SC0001220225 New Hampshire NELAP 2054 New Jersey NELAP SC002 New Mexico SC00012 New York NELAP 11501 North Carolina 233 North Carolina SDWA 45709 North Dakota R158 Oklahoma 2019165 Pennsylvania NELAP 6800485 Puerto Rico SC00012 S. Carolina Radiochem 10120002 Sanitation Districts of L 9255651 South Carolina Chemistry 10120001 Tennessee TN 02934 Texas NELAP T1047042352220 Utah NELAP SC00012202136 Vermont VT87156 Virginia NELAP 460202 Washington C780 Page 52 of 56 SDG: 585604

Radiochemistry Technical Case Narrative Zion Solutions SDG #: 585604 Product: Dry Weight Preparation Method: Dry Soil Prep Preparation Procedure: GL-RAD-A-021 REV# 24 Preparation Batch: 2288176 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 585604001 L1-12201C-FSGS-201-SS 585604002 L1-12201C-FSGS-202-SS 585604003 L1-12201C-FQGS-202-SS 585604004 L1-12201C-FSGS-203-SS 585604005 L1-12201C-FSGS-204-SS 585604006 L1-12201C-FSGS-204-SB 585604007 L1-12201C-FSGS-205-SS 585604008 L1-12201C-FSGS-206-SS 585604009 L1-12201C-FSGS-207-SS 585604010 L1-12201C-FSGS-208-SS 585604011 L1-12201C-FSGS-208-SB 585604012 L1-12201C-FSGS-209-SS 585604013 L1-12201C-FSGS-210-SS 585604014 L1-12201C-FSGS-211-SS 585604015 L1-12201C-FSGS-212-SS 585604016 L1-12201C-FSGS-213-SS 585604017 L1-12201C-FSGS-214-SS 585604018 L1-12201C-FSGS-215-SS 585604019 L1-12201C-FSGS-216-SS 585604020 L1-12201C-FSGS-217-SS The samples in this SDG were analyzed on an "as received" basis. Data Summary: There are no exceptions, anomalies or deviations from the specified methods. All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable. Product: Gammaspec, Gamma, Solid (Requested List) Analytical Method: DOE HASL 300, 4.5.2.3/Ga-01-R Analytical Procedure: GL-RAD-A-013 REV# 27 Analytical Batch: 2288424 Preparation Method: Dry Soil Prep Page 53 of 56 SDG: 585604

Preparation Procedure: GL-RAD-A-021 REV# 24 Preparation Batch: 2288176 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 585604001 L1-12201C-FSGS-201-SS 585604002 L1-12201C-FSGS-202-SS 585604003 L1-12201C-FQGS-202-SS 585604004 L1-12201C-FSGS-203-SS 585604005 L1-12201C-FSGS-204-SS 585604006 L1-12201C-FSGS-204-SB 585604007 L1-12201C-FSGS-205-SS 585604008 L1-12201C-FSGS-206-SS 585604009 L1-12201C-FSGS-207-SS 585604010 L1-12201C-FSGS-208-SS 585604011 L1-12201C-FSGS-208-SB 585604012 L1-12201C-FSGS-209-SS 585604013 L1-12201C-FSGS-210-SS 585604014 L1-12201C-FSGS-211-SS 585604015 L1-12201C-FSGS-212-SS 585604016 L1-12201C-FSGS-213-SS 585604017 L1-12201C-FSGS-214-SS 585604018 L1-12201C-FSGS-215-SS 585604019 L1-12201C-FSGS-216-SS 585604020 L1-12201C-FSGS-217-SS 1205136955 Method Blank (MB) 1205136956 585604001(L1-12201C-FSGS-201-SS) Sample Duplicate (DUP) 1205136957 Laboratory Control Sample (LCS) The samples in this SDG were analyzed on a "dry weight" basis. Data Summary: There are no exceptions, anomalies or deviations from the specified methods. All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable. Qualifier Information Qualifier Reason Analyte Sample Client Sample Results are considered a false UI positive Actinium-228 585604016 L1-12201C-FSGS-213-SS due to high counting uncertainty. Bismuth-211 585604002 L1-12201C-FSGS-202-SS Bismuth-212 585604004 L1-12201C-FSGS-203-SS Page 54 of 56 SDG: 585604

Bismuth-212 585604016 L1-12201C-FSGS-213-SS Cesium-137 585604010 L1-12201C-FSGS-208-SS Thallium-208 585604014 L1-12201C-FSGS-211-SS Thallium-208 1205136956 L1-12201C-FSGS-201-SS(585604001DUP) Results are considered a false UI Bismuth-212 585604006 L1-12201C-FSGS-204-SB positive due to high peak-width. Cesium-137 585604006 L1-12201C-FSGS-204-SB Cesium-137 585604018 L1-12201C-FSGS-215-SS Results are considered a false UI Actinium-228 585604002 L1-12201C-FSGS-202-SS positive due to low abundance. Actinium-228 585604004 L1-12201C-FSGS-203-SS Actinium-228 585604014 L1-12201C-FSGS-211-SS Actinium-228 585604018 L1-12201C-FSGS-215-SS Bismuth-211 585604001 L1-12201C-FSGS-201-SS Bismuth-211 585604003 L1-12201C-FQGS-202-SS Bismuth-211 585604004 L1-12201C-FSGS-203-SS Bismuth-211 585604005 L1-12201C-FSGS-204-SS Bismuth-211 585604006 L1-12201C-FSGS-204-SB Bismuth-211 585604007 L1-12201C-FSGS-205-SS Bismuth-211 585604009 L1-12201C-FSGS-207-SS Bismuth-211 585604010 L1-12201C-FSGS-208-SS Bismuth-211 585604011 L1-12201C-FSGS-208-SB Bismuth-211 585604012 L1-12201C-FSGS-209-SS Bismuth-211 585604013 L1-12201C-FSGS-210-SS Bismuth-211 585604016 L1-12201C-FSGS-213-SS Bismuth-211 585604019 L1-12201C-FSGS-216-SS Bismuth-211 1205136956 L1-12201C-FSGS-201-SS(585604001DUP) Bismuth-214 585604004 L1-12201C-FSGS-203-SS Page 55 of 56 SDG: 585604

Bismuth-214 585604005 L1-12201C-FSGS-204-SS Bismuth-214 585604008 L1-12201C-FSGS-206-SS Bismuth-214 585604010 L1-12201C-FSGS-208-SS Bismuth-214 585604015 L1-12201C-FSGS-212-SS Bismuth-214 585604019 L1-12201C-FSGS-216-SS Bismuth-214 1205136956 L1-12201C-FSGS-201-SS(585604001DUP) Europium-154 585604017 L1-12201C-FSGS-214-SS Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative. Page 56 of 56 SDG: 585604

August 30, 2022 Mr. Gerry Wood Zion Solutions 100 Shiloh Blvd. Zion, Illinois 60099 Re: Zion Solutions Work Order: 590180

Dear Mr. Wood:

GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the sample(s) we received on July 22, 2022. This original data report has been prepared and reviewed in accordance with GELs standard operating procedures. Test results for NELAP or ISO 17025 accredited tests are verified to meet the requirements of those standards, with any exceptions noted. The results reported relate only to the items tested and to the sample as received by the laboratory. These results may not be reproduced except as full reports without approval by the laboratory. Copies of GELs accreditations and certifications can be found on our website at www.gel.com. Our policy is to provide high quality, personalized analytical services to enable you to meet your analytical needs on time every time. We trust that you will find everything in order and to your satisfaction. If you have any questions, please do not hesitate to call me at (843) 556-8171, ext. 1605. Sincerely, PM_SIGN_HERE Zachary Worsham Project Manager Purchase Order: 702793 Enclosures Page 1 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 (843) 5568171 www.gel.com Certificate of Analysis Report for ENRG080 Zion Solutions (702793) Client SDG: 590180 GEL Work Order: 590180 The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

              ** Analyte is a Tracer compound
              ** Analyte is a surrogate compound U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.

UI Gamma SpectroscopyUncertain identification Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the Certificate of Analysis. The designation ND, if present, appears in the result column when the analyte concentration is not detected above the limit as defined in the U qualifier above. This data report has been prepared and reviewed in accordance with GEL Laboratories LLC standard operating procedures. Please direct any questions to your Project Manager, Zachary Worsham. Reviewed by USER_SIGN_HERE Page 2 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FIGS-201-SS Project: ENRG08001 Sample ID: 590180001 Client ID: ENRG080 Matrix: Soil Collect Date: 15-JUN-22 Receive Date: 22-JUL-22 Collector: Client Moisture: .268% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.232 +/-0.127 0.101 +/-0.128 pCi/g MXR1 08/19/22 1211 2305714 1 Bismuth-211 UI 0.000 +/-0.230 0.305 +/-0.457 pCi/g Bismuth-212 U 0.243 +/-0.297 0.475 +/-0.298 pCi/g Bismuth-214 0.212 +/-0.0821 0.0589 +/-0.0846 pCi/g Cesium-134 U 0.0100 +/-0.0171 0.0361 +/-0.0177 0.173 pCi/g Cesium-137 1.87 +/-0.0944 0.0301 +/-0.203 0.363 pCi/g Cobalt-60 U 0.00784 +/-0.0174 0.0361 +/-0.0178 0.109 pCi/g Europium-152 U 0.0171 +/-0.0467 0.0918 +/-0.0474 0.869 pCi/g Europium-154 U -0.0469 +/-0.0538 0.0927 +/-0.0579 0.799 pCi/g Lead-212 0.234 +/-0.0686 0.0561 +/-0.0711 pCi/g Lead-214 0.312 +/-0.0836 0.0639 +/-0.0876 pCi/g Potassium-40 11.3 +/-0.866 0.319 +/-1.33 pCi/g Thallium-208 0.0995 +/-0.0415 0.0255 +/-0.0426 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr90, Solid "Dry Weight Corrected" Strontium-90 U 0.0182 +/-0.0236 0.0403 +/-0.0239 0.0425 pCi/g KP1 08/26/22 1505 2305650 2 Rad Liquid Scintillation Analysis Liquid Scint Ni63, Solid "Dry Weight Corrected" Nickel-63 U -0.134 +/-5.28 9.17 +/-5.28 19.5 pCi/g TXJ1 08/30/22 0644 2307619 3 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 SF1 07/22/22 1428 2305626 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R 2 EPA 905.0 Modified/DOE RP501 Rev. 1 Modified 3 DOE RESL Ni-1, Modified Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, Solid "Dry Weight Corrected" 2305650 83.2 (25%-125%) Nickel Carrier Liquid Scint Ni63, Solid "Dry Weight Corrected" 2307619 91.2 (25%-125%) Page 3 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FIGS-201-SS Project: ENRG08001 Sample ID: 590180001 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 4 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FIGS-201-SB Project: ENRG08001 Sample ID: 590180002 Client ID: ENRG080 Matrix: Soil Collect Date: 15-JUN-22 Receive Date: 22-JUL-22 Collector: Client Moisture: 7.23% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.297 +/-0.167 0.180 +/-0.170 pCi/g MXR1 08/19/22 1211 2305714 1 Bismuth-211 UI 0.000 +/-0.309 0.425 +/-0.543 pCi/g Bismuth-212 U 0.268 +/-0.331 0.666 +/-0.353 pCi/g Bismuth-214 0.387 +/-0.109 0.0752 +/-0.114 pCi/g Cesium-134 U -0.00548 +/-0.0227 0.0437 +/-0.0229 0.173 pCi/g Cesium-137 1.33 +/-0.111 0.0440 +/-0.156 0.363 pCi/g Cobalt-60 U 0.0125 +/-0.0303 0.0607 +/-0.0308 0.109 pCi/g Europium-152 U 0.0385 +/-0.0562 0.115 +/-0.0589 0.869 pCi/g Europium-154 U -0.000340 +/-0.0896 0.168 +/-0.0896 0.799 pCi/g Lead-212 0.357 +/-0.0671 0.0541 +/-0.0737 pCi/g Lead-214 0.353 +/-0.112 0.0863 +/-0.116 pCi/g Potassium-40 13.9 +/-1.20 0.503 +/-1.80 pCi/g Thallium-208 0.111 +/-0.0481 0.0374 +/-0.0490 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr90, Solid "Dry Weight Corrected" Strontium-90 U -0.00699 +/-0.0198 0.0401 +/-0.0198 0.0425 pCi/g KP1 08/26/22 1505 2305650 2 Rad Liquid Scintillation Analysis Liquid Scint Ni63, Solid "Dry Weight Corrected" Nickel-63 U -0.374 +/-5.00 8.70 +/-5.00 19.5 pCi/g TXJ1 08/30/22 0700 2307619 3 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 SF1 07/22/22 1428 2305626 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R 2 EPA 905.0 Modified/DOE RP501 Rev. 1 Modified 3 DOE RESL Ni-1, Modified Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, Solid "Dry Weight Corrected" 2305650 62.4 (25%-125%) Nickel Carrier Liquid Scint Ni63, Solid "Dry Weight Corrected" 2307619 90.8 (25%-125%) Page 5 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FIGS-201-SB Project: ENRG08001 Sample ID: 590180002 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 6 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FIGS-202-SS Project: ENRG08001 Sample ID: 590180003 Client ID: ENRG080 Matrix: Soil Collect Date: 12-JUL-22 Receive Date: 22-JUL-22 Collector: Client Moisture: .436% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.328 +/-0.114 0.102 +/-0.119 pCi/g MXR1 08/19/22 1212 2305714 1 Bismuth-211 UI 0.000 +/-0.222 0.274 +/-0.399 pCi/g Bismuth-212 0.463 +/-0.373 0.348 +/-0.375 pCi/g Bismuth-214 0.273 +/-0.0694 0.0601 +/-0.0732 pCi/g Cesium-134 U 0.00158 +/-0.0151 0.0294 +/-0.0151 0.173 pCi/g Cesium-137 U -0.00603 +/-0.0144 0.0263 +/-0.0147 0.363 pCi/g Cobalt-60 U -0.0115 +/-0.0190 0.0283 +/-0.0197 0.109 pCi/g Europium-152 U -0.0172 +/-0.0360 0.0657 +/-0.0369 0.869 pCi/g Europium-154 U 0.0198 +/-0.0450 0.0937 +/-0.0459 0.799 pCi/g Lead-212 0.250 +/-0.0541 0.0437 +/-0.0578 pCi/g Lead-214 0.263 +/-0.0805 0.0563 +/-0.0834 pCi/g Potassium-40 11.5 +/-0.843 0.212 +/-1.39 pCi/g Thallium-208 0.0898 +/-0.0341 0.0260 +/-0.0349 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr90, Solid "Dry Weight Corrected" Strontium-90 U -0.0148 +/-0.0190 0.0394 +/-0.0190 0.0425 pCi/g KP1 08/26/22 1505 2305650 2 Rad Liquid Scintillation Analysis Liquid Scint Ni63, Solid "Dry Weight Corrected" Nickel-63 U 2.33 +/-5.19 8.86 +/-5.21 19.5 pCi/g TXJ1 08/30/22 0715 2307619 3 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 SF1 07/22/22 1428 2305626 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R 2 EPA 905.0 Modified/DOE RP501 Rev. 1 Modified 3 DOE RESL Ni-1, Modified Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, Solid "Dry Weight Corrected" 2305650 87.9 (25%-125%) Nickel Carrier Liquid Scint Ni63, Solid "Dry Weight Corrected" 2307619 90.8 (25%-125%) Page 7 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-FIGS-202-SS Project: ENRG08001 Sample ID: 590180003 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 8 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201D-FIGS-303-SS Project: ENRG08001 Sample ID: 590180004 Client ID: ENRG080 Matrix: Soil Collect Date: 06-JUL-22 Receive Date: 22-JUL-22 Collector: Client Moisture: 10.6% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.505 +/-0.162 0.148 +/-0.170 pCi/g MXR1 08/19/22 1212 2305714 1 Bismuth-211 U 0.161 +/-0.535 0.203 +/-0.565 pCi/g Bismuth-212 U 0.464 +/-0.523 0.502 +/-0.524 pCi/g Bismuth-214 0.477 +/-0.0988 0.0820 +/-0.107 pCi/g Cesium-134 U 0.0362 +/-0.0234 0.0488 +/-0.0287 0.173 pCi/g Cesium-137 U 0.00395 +/-0.0201 0.0384 +/-0.0202 0.363 pCi/g Cobalt-60 U -0.00585 +/-0.0209 0.0395 +/-0.0211 0.109 pCi/g Europium-152 U -0.00554 +/-0.0499 0.0950 +/-0.0500 0.869 pCi/g Europium-154 U -0.00219 +/-0.0757 0.144 +/-0.0757 0.799 pCi/g Lead-212 0.429 +/-0.0703 0.0556 +/-0.0783 pCi/g Lead-214 0.636 +/-0.106 0.180 +/-0.119 pCi/g Potassium-40 14.7 +/-1.11 0.369 +/-1.75 pCi/g Thallium-208 0.104 +/-0.0462 0.0371 +/-0.0471 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr90, Solid "Dry Weight Corrected" Strontium-90 U -0.0247 +/-0.0180 0.0400 +/-0.0180 0.0425 pCi/g KP1 08/26/22 1506 2305650 2 Rad Liquid Scintillation Analysis Liquid Scint Ni63, Solid "Dry Weight Corrected" Nickel-63 U 3.47 +/-6.30 10.7 +/-6.33 19.5 pCi/g TXJ1 08/30/22 0731 2307619 3 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 SF1 07/22/22 1428 2305626 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R 2 EPA 905.0 Modified/DOE RP501 Rev. 1 Modified 3 DOE RESL Ni-1, Modified Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, Solid "Dry Weight Corrected" 2305650 90.2 (25%-125%) Nickel Carrier Liquid Scint Ni63, Solid "Dry Weight Corrected" 2307619 68.6 (25%-125%) Page 9 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201D-FIGS-303-SS Project: ENRG08001 Sample ID: 590180004 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 10 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201E-FIGS-202-SS Project: ENRG08001 Sample ID: 590180005 Client ID: ENRG080 Matrix: Soil Collect Date: 06-JUL-22 Receive Date: 22-JUL-22 Collector: Client Moisture: 4.75% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.252 +/-0.133 0.198 +/-0.177 pCi/g MXR1 08/19/22 1212 2305714 1 Bismuth-211 UI 0.000 +/-0.194 0.286 +/-0.373 pCi/g Bismuth-212 U 0.0883 +/-0.233 0.458 +/-0.237 pCi/g Bismuth-214 0.255 +/-0.0727 0.0589 +/-0.0760 pCi/g Cesium-134 U -0.00123 +/-0.0172 0.0323 +/-0.0172 0.173 pCi/g Cesium-137 U 0.00436 +/-0.0160 0.0316 +/-0.0161 0.363 pCi/g Cobalt-60 U 0.000808 +/-0.0136 0.0286 +/-0.0136 0.109 pCi/g Europium-152 U -0.000148 +/-0.0372 0.0704 +/-0.0372 0.869 pCi/g Europium-154 U -0.0303 +/-0.0489 0.0879 +/-0.0508 0.799 pCi/g Lead-212 0.237 +/-0.0502 0.0408 +/-0.0540 pCi/g Lead-214 0.252 +/-0.0705 0.0558 +/-0.0736 pCi/g Potassium-40 10.0 +/-0.865 0.264 +/-1.28 pCi/g Thallium-208 0.0782 +/-0.0274 0.0231 +/-0.0282 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr90, Solid "Dry Weight Corrected" Strontium-90 U 0.0259 +/-0.0216 0.0351 +/-0.0221 0.0425 pCi/g KP1 08/26/22 1506 2305650 2 Rad Liquid Scintillation Analysis Liquid Scint Ni63, Solid "Dry Weight Corrected" Nickel-63 U -1.82 +/-4.52 7.97 +/-4.52 19.5 pCi/g TXJ1 08/30/22 0747 2307619 3 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 SF1 07/22/22 1428 2305626 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R 2 EPA 905.0 Modified/DOE RP501 Rev. 1 Modified 3 DOE RESL Ni-1, Modified Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, Solid "Dry Weight Corrected" 2305650 116 (25%-125%) Nickel Carrier Liquid Scint Ni63, Solid "Dry Weight Corrected" 2307619 93.9 (25%-125%) Page 11 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201E-FIGS-202-SS Project: ENRG08001 Sample ID: 590180005 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 12 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FIGS-201-SB Project: ENRG08001 Sample ID: 590180006 Client ID: ENRG080 Matrix: Soil Collect Date: 02-JUL-22 Receive Date: 22-JUL-22 Collector: Client Moisture: 3.73% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 U 0.384 +/-0.297 0.399 +/-0.345 pCi/g MXR1 08/19/22 1213 2305714 1 Bismuth-211 U 0.0982 +/-0.643 0.273 +/-0.649 pCi/g Bismuth-212 U 0.200 +/-0.443 0.872 +/-0.453 pCi/g Bismuth-214 0.371 +/-0.138 0.118 +/-0.142 pCi/g Cesium-134 U 0.00942 +/-0.0419 0.0791 +/-0.0421 0.173 pCi/g Cesium-137 0.0673 +/-0.0471 0.0581 +/-0.0474 0.363 pCi/g Cobalt-60 0.869 +/-0.112 0.0478 +/-0.134 0.109 pCi/g Europium-152 U 0.0397 +/-0.0688 0.137 +/-0.0711 0.869 pCi/g Europium-154 U 0.000804 +/-0.125 0.213 +/-0.125 0.799 pCi/g Lead-212 0.300 +/-0.0978 0.0846 +/-0.101 pCi/g Lead-214 0.340 +/-0.137 0.189 +/-0.140 pCi/g Potassium-40 10.2 +/-1.26 0.510 +/-1.57 pCi/g Thallium-208 0.0929 +/-0.0651 0.0555 +/-0.0656 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr90, Solid "Dry Weight Corrected" Strontium-90 U -0.00374 +/-0.0207 0.0397 +/-0.0207 0.0425 pCi/g KP1 08/26/22 1506 2305650 2 Rad Liquid Scintillation Analysis Liquid Scint Ni63, Solid "Dry Weight Corrected" Nickel-63 U 2.99 +/-4.71 7.98 +/-4.74 19.5 pCi/g TXJ1 08/30/22 0802 2307619 3 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 SF1 07/22/22 1428 2305626 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R 2 EPA 905.0 Modified/DOE RP501 Rev. 1 Modified 3 DOE RESL Ni-1, Modified Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, Solid "Dry Weight Corrected" 2305650 67.1 (25%-125%) Nickel Carrier Liquid Scint Ni63, Solid "Dry Weight Corrected" 2307619 90.8 (25%-125%) Page 13 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FIGS-201-SB Project: ENRG08001 Sample ID: 590180006 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 14 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FIGS-202-SS Project: ENRG08001 Sample ID: 590180007 Client ID: ENRG080 Matrix: Soil Collect Date: 11-JUL-22 Receive Date: 22-JUL-22 Collector: Client Moisture: 2.94% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.158 +/-0.121 0.126 +/-0.123 pCi/g MXR1 08/19/22 1214 2305714 1 Bismuth-211 UI 0.000 +/-0.226 0.318 +/-0.475 pCi/g Bismuth-212 UI 0.000 +/-0.393 0.348 +/-0.400 pCi/g Bismuth-214 0.278 +/-0.0745 0.0628 +/-0.0783 pCi/g Cesium-134 U -0.00156 +/-0.0191 0.0363 +/-0.0191 0.173 pCi/g Cesium-137 0.0462 +/-0.0336 0.0351 +/-0.0338 0.363 pCi/g Cobalt-60 0.110 +/-0.0415 0.0355 +/-0.0428 0.109 pCi/g Europium-152 U 0.0195 +/-0.0384 0.0813 +/-0.0395 0.869 pCi/g Europium-154 U 0.00449 +/-0.0538 0.110 +/-0.0538 0.799 pCi/g Lead-212 0.284 +/-0.0566 0.0446 +/-0.0612 pCi/g Lead-214 0.331 +/-0.0820 0.0600 +/-0.0862 pCi/g Potassium-40 10.7 +/-0.982 0.313 +/-1.44 pCi/g Thallium-208 0.0790 +/-0.0364 0.0231 +/-0.0370 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr90, Solid "Dry Weight Corrected" Strontium-90 U 0.0156 +/-0.0210 0.0357 +/-0.0212 0.0425 pCi/g KP1 08/26/22 1506 2305650 2 Rad Liquid Scintillation Analysis Liquid Scint Ni63, Solid "Dry Weight Corrected" Nickel-63 U 1.42 +/-5.23 8.98 +/-5.24 19.5 pCi/g TXJ1 08/30/22 0818 2307619 3 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 SF1 07/22/22 1428 2305626 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R 2 EPA 905.0 Modified/DOE RP501 Rev. 1 Modified 3 DOE RESL Ni-1, Modified Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, Solid "Dry Weight Corrected" 2305650 118 (25%-125%) Nickel Carrier Liquid Scint Ni63, Solid "Dry Weight Corrected" 2307619 91.7 (25%-125%) Page 15 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FIGS-202-SS Project: ENRG08001 Sample ID: 590180007 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 16 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FIGS-206-SS Project: ENRG08001 Sample ID: 590180008 Client ID: ENRG080 Matrix: Soil Collect Date: 11-JUL-22 Receive Date: 22-JUL-22 Collector: Client Moisture: 2.2% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.316 +/-0.197 0.152 +/-0.200 pCi/g MXR1 08/19/22 1353 2305714 1 Bismuth-211 UI 0.000 +/-0.354 0.488 +/-0.737 pCi/g Bismuth-212 U 0.304 +/-0.355 0.680 +/-0.381 pCi/g Bismuth-214 0.382 +/-0.118 0.0775 +/-0.122 pCi/g Cesium-134 U 0.0315 +/-0.0397 0.0550 +/-0.0422 0.173 pCi/g Cesium-137 U 0.0231 +/-0.0248 0.0517 +/-0.0269 0.363 pCi/g Cobalt-60 U -0.0102 +/-0.0197 0.0364 +/-0.0203 0.109 pCi/g Europium-152 U 0.00446 +/-0.0591 0.107 +/-0.0591 0.869 pCi/g Europium-154 U -0.0183 +/-0.0817 0.155 +/-0.0822 0.799 pCi/g Lead-212 0.420 +/-0.0725 0.0557 +/-0.0828 pCi/g Lead-214 0.510 +/-0.129 0.0821 +/-0.136 pCi/g Potassium-40 11.8 +/-1.18 0.393 +/-1.68 pCi/g Thallium-208 0.0793 +/-0.0534 0.0405 +/-0.0538 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr90, Solid "Dry Weight Corrected" Strontium-90 U -0.00985 +/-0.0174 0.0344 +/-0.0174 0.0425 pCi/g KP1 08/26/22 1506 2305650 2 Rad Liquid Scintillation Analysis Liquid Scint Ni63, Solid "Dry Weight Corrected" Nickel-63 U -0.0436 +/-5.00 8.68 +/-5.00 19.5 pCi/g TXJ1 08/30/22 0834 2307619 3 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 SF1 07/22/22 1440 2305626 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R 2 EPA 905.0 Modified/DOE RP501 Rev. 1 Modified 3 DOE RESL Ni-1, Modified Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, Solid "Dry Weight Corrected" 2305650 109 (25%-125%) Nickel Carrier Liquid Scint Ni63, Solid "Dry Weight Corrected" 2307619 89 (25%-125%) Page 17 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FIGS-206-SS Project: ENRG08001 Sample ID: 590180008 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 18 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12103A-FIGS-301-SS Project: ENRG08001 Sample ID: 590180009 Client ID: ENRG080 Matrix: Soil Collect Date: 27-JUN-22 Receive Date: 22-JUL-22 Collector: Client Moisture: 1.96% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.522 +/-0.142 0.150 +/-0.150 pCi/g MXR1 08/19/22 1354 2305714 1 Bismuth-211 U 0.126 +/-0.569 0.208 +/-0.578 pCi/g Bismuth-212 U 0.569 +/-0.306 0.701 +/-0.402 pCi/g Bismuth-214 0.285 +/-0.119 0.0816 +/-0.121 pCi/g Cesium-134 U -0.00855 +/-0.0242 0.0447 +/-0.0245 0.173 pCi/g Cesium-137 0.0636 +/-0.0456 0.0393 +/-0.0459 0.363 pCi/g Cobalt-60 U 0.0195 +/-0.0204 0.0484 +/-0.0223 0.109 pCi/g Europium-152 U 0.00997 +/-0.0534 0.0987 +/-0.0536 0.869 pCi/g Europium-154 U 0.0341 +/-0.0635 0.139 +/-0.0654 0.799 pCi/g Lead-212 0.354 +/-0.0785 0.0668 +/-0.0849 pCi/g Lead-214 0.360 +/-0.105 0.155 +/-0.109 pCi/g Potassium-40 7.74 +/-0.844 0.354 +/-1.11 pCi/g Thallium-208 0.150 +/-0.0482 0.0384 +/-0.0498 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr90, Solid "Dry Weight Corrected" Strontium-90 U -0.00367 +/-0.0210 0.0405 +/-0.0211 0.0425 pCi/g KP1 08/26/22 1506 2305650 2 Rad Liquid Scintillation Analysis Liquid Scint Ni63, Solid "Dry Weight Corrected" Nickel-63 U 1.28 +/-5.22 8.98 +/-5.23 19.5 pCi/g TXJ1 08/30/22 0849 2307619 3 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 SF1 07/22/22 1440 2305626 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R 2 EPA 905.0 Modified/DOE RP501 Rev. 1 Modified 3 DOE RESL Ni-1, Modified Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, Solid "Dry Weight Corrected" 2305650 83.2 (25%-125%) Nickel Carrier Liquid Scint Ni63, Solid "Dry Weight Corrected" 2307619 90.3 (25%-125%) Page 19 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12103A-FIGS-301-SS Project: ENRG08001 Sample ID: 590180009 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 20 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12103A-FIGS-301-SB Project: ENRG08001 Sample ID: 590180010 Client ID: ENRG080 Matrix: Soil Collect Date: 27-JUN-22 Receive Date: 22-JUL-22 Collector: Client Moisture: 2.54% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.239 +/-0.133 0.115 +/-0.135 pCi/g MXR1 08/19/22 1354 2305714 1 Bismuth-211 UI 0.000 +/-0.269 0.383 +/-0.557 pCi/g Bismuth-212 U 0.134 +/-0.255 0.511 +/-0.263 pCi/g Bismuth-214 0.326 +/-0.0871 0.0694 +/-0.0914 pCi/g Cesium-134 U 0.0171 +/-0.0293 0.0438 +/-0.0303 0.173 pCi/g Cesium-137 0.0453 +/-0.0296 0.0331 +/-0.0298 0.363 pCi/g Cobalt-60 U -0.00926 +/-0.0192 0.0350 +/-0.0197 0.109 pCi/g Europium-152 U 0.0112 +/-0.0509 0.0968 +/-0.0512 0.869 pCi/g Europium-154 U 0.0175 +/-0.0518 0.110 +/-0.0524 0.799 pCi/g Lead-212 0.330 +/-0.0633 0.0493 +/-0.0695 pCi/g Lead-214 0.386 +/-0.0975 0.0698 +/-0.103 pCi/g Potassium-40 9.34 +/-0.850 0.247 +/-1.27 pCi/g Thallium-208 0.120 +/-0.0400 0.0331 +/-0.0413 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr90, Solid "Dry Weight Corrected" Strontium-90 U 0.0316 +/-0.0255 0.0413 +/-0.0262 0.0425 pCi/g KP1 08/26/22 1506 2305650 2 Rad Liquid Scintillation Analysis Liquid Scint Ni63, Solid "Dry Weight Corrected" Nickel-63 U 0.704 +/-5.29 9.14 +/-5.29 19.5 pCi/g TXJ1 08/30/22 0905 2307619 3 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 SF1 07/22/22 1440 2305626 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R 2 EPA 905.0 Modified/DOE RP501 Rev. 1 Modified 3 DOE RESL Ni-1, Modified Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, Solid "Dry Weight Corrected" 2305650 94.8 (25%-125%) Nickel Carrier Liquid Scint Ni63, Solid "Dry Weight Corrected" 2307619 90.8 (25%-125%) Page 21 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12103A-FIGS-301-SB Project: ENRG08001 Sample ID: 590180010 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 22 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12103A-FIGS-302-SS Project: ENRG08001 Sample ID: 590180011 Client ID: ENRG080 Matrix: Soil Collect Date: 11-JUL-22 Receive Date: 22-JUL-22 Collector: Client Moisture: 1.21% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 0.287 +/-0.165 0.119 +/-0.168 pCi/g MXR1 08/19/22 1354 2305714 1 Bismuth-211 U 0.0158 +/-0.430 0.159 +/-0.444 pCi/g Bismuth-212 U 0.362 +/-0.230 0.522 +/-0.284 pCi/g Bismuth-214 0.239 +/-0.0896 0.0558 +/-0.0919 pCi/g Cesium-134 UI 0.000 +/-0.0260 0.0460 +/-0.0404 0.173 pCi/g Cesium-137 0.0740 +/-0.0350 0.0388 +/-0.0355 0.363 pCi/g Cobalt-60 U 0.0261 +/-0.0198 0.0467 +/-0.0232 0.109 pCi/g Europium-152 U 0.0275 +/-0.0440 0.0924 +/-0.0458 0.869 pCi/g Europium-154 U 0.0309 +/-0.0596 0.125 +/-0.0612 0.799 pCi/g Lead-212 0.395 +/-0.0718 0.0496 +/-0.0799 pCi/g Lead-214 0.348 +/-0.0726 0.125 +/-0.0780 pCi/g Potassium-40 7.92 +/-0.793 0.259 +/-1.11 pCi/g Thallium-208 0.0913 +/-0.0401 0.0292 +/-0.0408 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr90, Solid "Dry Weight Corrected" Strontium-90 U 0.0141 +/-0.0237 0.0413 +/-0.0239 0.0425 pCi/g KP1 08/26/22 1506 2305650 2 Rad Liquid Scintillation Analysis Liquid Scint Ni63, Solid "Dry Weight Corrected" Nickel-63 U 1.83 +/-5.33 9.13 +/-5.34 19.5 pCi/g TXJ1 08/30/22 0921 2307619 3 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 SF1 07/22/22 1440 2305626 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R 2 EPA 905.0 Modified/DOE RP501 Rev. 1 Modified 3 DOE RESL Ni-1, Modified Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, Solid "Dry Weight Corrected" 2305650 46.2 (25%-125%) Nickel Carrier Liquid Scint Ni63, Solid "Dry Weight Corrected" 2307619 90.3 (25%-125%) Page 23 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: August 30, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12103A-FIGS-302-SS Project: ENRG08001 Sample ID: 590180011 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 24 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Report Date: August 30, 2022 Client : Zion Solutions Page 1 of 5 100 Shiloh Blvd. Zion, Illinois

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Mr. Gerry Wood Workorder: 590180 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 2305714 QC1205169263 590180001 DUP Actinium-228 0.232 0.290 pCi/g 22.2 (0% - 100%) MXR1 08/19/22 15:47 Uncert: +/-0.127 +/-0.153 TPU: +/-0.128 +/-0.203 Bismuth-211 UI 0.000 UI 0.000 pCi/g 0 N/A Uncert: +/-0.230 +/-0.244 TPU: +/-0.457 +/-0.404 Bismuth-212 U 0.243 U 0.444 pCi/g 0 N/A Uncert: +/-0.297 +/-0.449 TPU: +/-0.298 +/-0.450 Bismuth-214 0.212 0.235 pCi/g 10 (0% - 100%) Uncert: +/-0.0821 +/-0.0828 TPU: +/-0.0846 +/-0.0852 Cesium-134 U 0.0100 U 0.0222 pCi/g 0 N/A Uncert: +/-0.0171 +/-0.0232 TPU: +/-0.0177 +/-0.0254 Cesium-137 1.87 1.75 pCi/g 6.58 (0%-20%) Uncert: +/-0.0944 +/-0.107 TPU: +/-0.203 +/-0.180 Cobalt-60 U 0.00784 U -0.00876 pCi/g 0 N/A Uncert: +/-0.0174 +/-0.0192 TPU: +/-0.0178 +/-0.0196 Europium-152 U 0.0171 U -0.0168 pCi/g 0 N/A Uncert: +/-0.0467 +/-0.0476 TPU: +/-0.0474 +/-0.0482 Europium-154 U -0.0469 U 0.0567 pCi/g 0 N/A Uncert: +/-0.0538 +/-0.104 TPU: +/-0.0579 +/-0.107 Lead-212 0.234 0.205 pCi/g 13.2 (0% - 100%) Uncert: +/-0.0686 +/-0.0664 TPU: +/-0.0711 +/-0.0688 Lead-214 0.312 0.255 pCi/g 20.1 (0% - 100%) Uncert: +/-0.0836 +/-0.0885 TPU: +/-0.0876 +/-0.0911 Potassium-40 11.3 10.5 pCi/g 7.99 (0%-20%) Uncert: +/-0.866 +/-0.975 TPU: +/-1.33 +/-1.40 Thallium-208 0.0995 0.101 pCi/g 1.82 (0% - 100%) Uncert: +/-0.0415 +/-0.0369 TPU: +/-0.0426 +/-0.0379 QC1205169264 LCS Americium-241 485 510 pCi/g 105 (75%-125%) MXR1 08/19/22 15:48 Page 25 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 590180 Page 2 of 5 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 2305714 Uncert: +/-9.64 TPU: +/-48.8 Actinium-228 U 0.459 pCi/g Uncert: +/-1.60 TPU: +/-1.62 Bismuth-211 U 0.321 pCi/g Uncert: +/-2.10 TPU: +/-2.10 Bismuth-212 7.54 pCi/g Uncert: +/-6.92 TPU: +/-6.96 Bismuth-214 U 0.118 pCi/g Uncert: +/-0.624 TPU: +/-0.626 Cesium-134 U 0.159 pCi/g Uncert: +/-0.357 TPU: +/-0.365 Cesium-137 157 157 pCi/g 100 (75%-125%) Uncert: +/-2.39 TPU: +/-14.8 Cobalt-60 74.7 74.6 pCi/g 99.8 (75%-125%) Uncert: +/-2.06 TPU: +/-6.54 Europium-152 U -0.297 pCi/g Uncert: +/-1.06 TPU: +/-1.07 Europium-154 U -0.0848 pCi/g Uncert: +/-0.593 TPU: +/-0.595 Lead-212 U 0.0510 pCi/g Uncert: +/-0.540 TPU: +/-0.541 Lead-214 U -0.515 pCi/g Uncert: +/-0.776 TPU: +/-0.811 Potassium-40 U -0.807 pCi/g Uncert: +/-1.36 TPU: +/-1.41 Thallium-208 U 0.178 pCi/g Uncert: +/-0.326 TPU: +/-0.336 QC1205169262 MB Actinium-228 U -0.135 pCi/g MXR1 08/19/2215:47 Uncert: +/-0.0997 TPU: +/-0.117 Bismuth-211 U -0.0571 pCi/g Page 26 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 590180 Page 3 of 5 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 2305714 Uncert: +/-0.114 TPU: +/-0.117 Bismuth-212 U -0.0413 pCi/g Uncert: +/-0.282 TPU: +/-0.283 Bismuth-214 U 0.00615 pCi/g Uncert: +/-0.0488 TPU: +/-0.0489 Cesium-134 U 0.0225 pCi/g Uncert: +/-0.0226 TPU: +/-0.0248 Cesium-137 U -0.0192 pCi/g Uncert: +/-0.0223 TPU: +/-0.0239 Cobalt-60 U 0.00986 pCi/g Uncert: +/-0.0258 TPU: +/-0.0262 Europium-152 U -0.00507 pCi/g Uncert: +/-0.0487 TPU: +/-0.0487 Europium-154 U -0.0153 pCi/g Uncert: +/-0.0548 TPU: +/-0.0552 Lead-212 U -0.0345 pCi/g Uncert: +/-0.0342 TPU: +/-0.0376 Lead-214 U -0.0388 pCi/g Uncert: +/-0.0422 TPU: +/-0.0458 Potassium-40 U -0.0931 pCi/g Uncert: +/-0.283 TPU: +/-0.287 Thallium-208 U 0.0147 pCi/g Uncert: +/-0.0389 TPU: +/-0.0389 Rad Gas Flow Batch 2305650 QC1205169137 590180011 DUP Strontium-90 U 0.0141 U 0.0120 pCi/g 0 N/A KP1 08/26/22 15:05 Uncert: +/-0.0237 +/-0.0202 TPU: +/-0.0239 +/-0.0203 QC1205169138 LCS Strontium-90 1.78 2.06 pCi/g 116 (75%-125%) KP1 08/26/22 15:05 Uncert: +/-0.0955 TPU: +/-0.380 QC1205169136 MB Page 27 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 590180 Page 4 of 5 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gas Flow Batch 2305650 Strontium-90 U 0.0124 pCi/g KP1 08/26/22 15:05 Uncert: +/-0.0226 TPU: +/-0.0227 Rad Liquid Scintillation Batch 2307619 QC1205173125 590180001 DUP Nickel-63 U -0.134 U 4.10 pCi/g 0 N/A TXJ1 08/30/22 09:52 Uncert: +/-5.28 +/-5.33 TPU: +/-5.28 +/-5.38 QC1205173126 LCS Nickel-63 249 254 pCi/g 102 (75%-125%) TXJ1 08/30/22 10:08 Uncert: +/-10.6 TPU: +/-48.1 QC1205173124 MB Nickel-63 U 1.64 pCi/g TXJ1 08/30/22 09:36 Uncert: +/-4.66 TPU: +/-4.67 Notes: TPU and Counting Uncertainty are calculated at the 95% confidence level (1.96-sigma). The Qualifiers in this report are defined as follows:

 **     Analyte is a Tracer compound
 <      Result is less than value reported
 >      Result is greater than value reported BD     Results are either below the MDC or tracer recovery is low FA     Failed analysis.

H Analytical holding time was exceeded J See case narrative for an explanation J Value is estimated K Analyte present. Reported value may be biased high. Actual value is expected to be lower. L Analyte present. Reported value may be biased low. Actual value is expected to be higher. M M if above MDC and less than LLD M REMP Result > MDC/CL and < RDL N/A RPD or %Recovery limits do not apply. N1 See case narrative ND Analyte concentration is not detected above the detection limit NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER. R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD. UI Gamma Spectroscopy--Uncertain identification UJ Gamma Spectroscopy--Uncertain identification Page 28 of 44 SDG: 590180

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 590180 Page 5 of 5 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time UL Not considered detected. The associated number is the reported concentration, which may be inaccurate due to a low bias. X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y Other specific qualifiers were required to properly define the results. Consult case narrative.

^       RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry.

h Preparation or preservation holding time was exceeded N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more or %RPD not applicable.

** Indicates analyte is a surrogate/tracer compound.
^ The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptence criteria when the sample is greater than five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the RL is used to evaluate the DUP result.

For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations. Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary. Page 29 of 44 SDG: 590180

Page 30 of 44 SDG: 590180 ZS-WM-131 Revision 0 Information Use An EmffgySok1lions ConiP$ny Attachment 1 - Chai11_-of-Custody Fonn 5f10;,*~ Sample ID Matrix Sample Type Sample Container Sample Date Sample Analysis Type Preservative Remarks Time Vol Unit Type Qty Ll-12102A-FIGS-202-SS SOIL SOIL 850.38 grams NIA l 07111/2022 1015 Gamma Spec NIA See comments Ll-12102A-FIGS-203-SS SOIL SOIL 850.38 grams NIA 1 07/11/2022 1028 Gamma.Spec NIA See comments L l-12102A-FIGS-204-SS SOIL SOIL 850.38 grams NIA l 07111/2022 1035 Gamma.Spec NIA See comments Ll-!2102A-FIGS-205-SS SOIL SOIL 850.38 grams NIA I 07/ll/2022 1043 Gamma.Spec NIA See comments Ll-l2102A-QIGS-205-SS SOIL SOIL 850.38 grams N/A 1 07lll/2022 1043 Gamma.Spec NIA See comments L 1-12102A-FIGS-206-SS SOIL SOIL 850.38 grams NIA I 07lll/2022 1050 Gamma Spec NIA See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: Airbill Number: GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 07/20/202i 777'-I 3172 f lflb Date (mm/dd/yyyy): Time: Received by: Date: (mm/dd/yyyy): Time: R{j7;);~~d f: /Zi'c kfti Relinquished by: 0 7fl- oIJOZ2v ll OD Date (ihm/ddlfyyy): Time: fr0J fx Received ~:,I' ~ 01/10/J()JL-Date: (mfu/dd/yyyy):

                                                                                                                                                                                              //Oo Time:
                                                                                                                           .//fl;,-A         '()1)-,.;      7/2z/2z                        90-f" Comments: Gamma Spec includes Cs137, Cs134, Co60 K-40, Bi-211/212/214, Pb-212/214, Ac-228, Tl-/oa as per June 23, 2021 e-mail and follow-up phone calls of Page 31 of 44 SDG: 590180 ZS-WM-131 Revision 0 Information Use Attachment 1 - Chain-of-Custody Form 5t101:J1-Sample ID            Matrix     Sample Type                Sample Container             Sample Date   Sample      Analysis Type    Preservative         Remarks Time Vol       Unit      Type    Qty Ll-12102A-FIGS-201-SS       SOIL           SOIL         850.53      grams      NIA     l        07102/2022    0802       Gamma Spec           N/A            See comments Ll-12102A-FIGS-20 I-SB      SOIL           SOIL         850.53      grams      NIA     I        07102/2022    0830       Gamma Spec           N/A            See comments Laboratory:                              Date Submitted To Lab:                      Ship Container No.:     Cooler Temperature:          Airbill Number:

GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 0 7/Jo/20-zz, '77711- 3172- [1/rJp Date (mmldd/yyyy): Time: Received by: Date: (mm/dd/yyyy): Time: Re74;;~x;:rJ £ /?/ch rt ()7/20/207-i II oo F(c! £Y: 07 /;c;/202, //00 Relinquished by: Dat! (mm/~d/yyyy): Time: Rece#?L D;t~;z Time:

                                                                                                                                                                                       <;(JS Comments: Gamma Spec includes Cs137, Cs134, Co60 K-40, Bi-211/212/214, Pb-212/214, Ac-228, Tl-208 as per June 23, 2021 e-mail and follow-up phone calls 1 of                                                                                                          -~

Page 32 of 44 SDG: 590180 ZS-WM-131 Revision 0 Information Use Attachment 1 - Chain-of-Custody Fonn

                                                                                                                                                                ,;g, 031-.

Sample ID Matrix Sample Type Sample Container Sample Date Sample Analysis Type Preservative Remarks Time Vol Unit Type Qty Ll-1220IE-FIGS-201-SS SOIL SOIL 850.29 grams NIA l 0710612022 0936 Gamma Spee NIA See comments L 1-1220 I E-FIGS-202-SS SOIL SOIL 850.29 grams NIA I 07/06/2022 0940 Gamma Spec NIA See comments Ll-12201E-QIGS-202-SS SOIL SOIL 850.29 grams NIA l 07/06/2022 0940 Gamma Spec NIA See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: Airbill Number: GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 0 7/JO/:ZO 22- 777¥ 3!72- ll/3{:; Date (mm/dd/yyyy): Time: Received bv: Date: (rnm/dd/yyyy): Time: R~T;h:~d f_f1/ikvrl Relinquished by: 07 /J(l/JOJ Datef(mm/dMyyyy):

                                                                                                //0()

Time: [r,J fy 01/20/20J..2-Date: (mmfdd/yy))Y):

                                                                                                                                                                                        //00 Time:

Received;;~~~ 7/22/22.., 9G2S Comments: Gamma Spec includes Cs137, Cs134, Co60 K-40, Bi-211/212/214, Pb-212/214, Ac-228, Tl-20!f'as per June 23, 2021 e-mail and follow-up phone calls of Page 33 of 44 SDG: 590180 ZS-WM-131 Revision 0 Information Use Attachment 1 - Chain-of-Custody Form ~ ' (J3i., Sample JD Matrix Sample Type Sample Container Sample Date Sample Analysis Type Preservative Remarks Time Vol Unit Type Qty Ll-12201D-FIGS-301-SS SOIL SOJL 850.51 grams NIA l 07/06/2022 0920 Gamma Spec NIA See comments Ll-1220 I D-FIGS-302-SS SOIL SOIL 850.51 grams NIA I 07/06/2022 0922 Gamma Spec NIA See comments Ll-l2201D-FIGS-303-SS SOIL SOIL 850.51 grams NIA I 07/06/2022 0925 Gamma Spec NIA See comments Ll-12201D-QIGS-303-SS SOIL SOIL 850.51 grams NIA l 07/06/2022 0925 Gamma Spec NIA See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: Airbill Number: 07/20/ ,2o;z2, GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 7771/ "3172 11/Sb Relinquished by: Date (mm/dd/yyyy): Time: Received by: Date: {mm/dd/yyyy): Time: f?/cAard r,-R/ckeri Relinquished by: ()J/20/202-i Date(mm!d6/yyyy):

                                                                                                 // oO Time:

(cJ fx () 7/20/1022 /!O() Receiv~ Date: (~~dd!A,yy): Time:

                                                                                                                          !IJ'4       tfd/94'(           7/zJ;/22.                       '?OS Comments: Gamma Spec includes Cs 137, Cs134, Co60 K-40, Bi-211/212/214, Pb-212/214, Ac-228, Tl-2~8 as per June 23, 2021 e-mail and follow-up phone calls of -~

1

Page 34 of 44 SDG: 590180 ZS-WM-131 Revision 0 Information Use Attachment 1 - Chain-of-Custody Form st,o,~ Sample ID Matrix Sample Type Sample Container Sample Date Sample Analysis Type Preservative Remarks Time Vol Unit Type Qty L l-l 2201C-FIGS-202-SS SOIL SOIL 850.38 grams NIA 1 0711212022 1340 Gamma Spec NIA See comments L1-12201 C-FIGS-203-SS SOIL SOIL 850.38 grams NIA 1 07112/2022 1348 Gamma Spec NIA See comments Ll-12201C-FJGS-204-SS SOIL SOIL 850.38 grams NIA I 0711212022 1352 Gamma Spec NIA See comments Ll-12201C-FIGS-205-SS SOIL SOIL 850.38 grams NIA l 0711212022 1356 Gamma Spec NIA See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: Airbill Number: 07 /20/ 207 GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 777~ 3112 !'18b Date (mmldd/yyyy): Time: Received by: Date: (mm/ddlyyyy): Time: Re~~uf;;;;;td f- rf/vkvrf 07I 20 )202-Z.. II ()CJ reJe:1 07'10/2022-  !/00 Relinquished by: Date (mm/dd/fyyy): Time: Date: (m6vdd/5-yyy): Time: Recei~,& ilA '{r(9IN' 7/z.2./zL 9G..5' Comments: Gamma Spec includes Cs137, Cs 134, Co60 K-40, Bi-211/212/214, Pb-212/214, Ac-228, Tl-268 as per June 23, 2021 e-mail and follow-up phone calls l of ~1 -

Page 35 of 44 SDG: 590180 ZS-WM-131 Revision 0 Information Use An EnergyS:l!utiorrs Comp$:ny Attachment 1 - Chain-of-Custody Form S:-&<()'?V Sample ID Matrix Sample Type Sample Container Sample Date Sample Analysis Type Preservative Remarks Time Vol Unit Type Qty Ll-1220I C-FIGS-201-SS SOIL SOIL 850.88 grams NIA I 06115/2022 0940 Gamma Spec NIA See comments L1-12201C-QIGS-201-SS SOIL SOIL 850.88 grams NIA I 06/1512022 0940 Gamma Spec NIA See comments L 1-12201C-FIGS-201-SB SOIL SOIL 850.88 grams NIA I 06/15/2022 0950 Gamma Spec NIA See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: Airbill Number: GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 01/ 2 0/ 2 o;L2-- 777 t/3f 7~_,Jlf 8b Date (mm/dd/yyyy): Time: Received by: Date: (mm/dd/yyyy): R~}:h~b;J k K/rl<irf Time: 01/20/201- !loo (JU ()7/ ;.0/1022- lloo Rec~~~ Relinquished by: Date (1nm/dd/yyyy): Time: Date: (mm/dd3/yyyy): Time:

                                                                                                                                                          -z /zzlz:2                          q~(:15
                                                                                                                                   .{o                          l      '

Comments: Gamma Spec includes Cs137, Cs134, Co60 K-40, Bi-211/212/214, Pb-212/214, Ac-228, Tl- 08 as per June 23, 2021 e-mail and follow-up phone calls of Page 36 of 44 SDG: 590180 ZS-WM-131 Revision 0 Information Use S8'1o}t-Attachment 1 - Chain-of-Custody Form Sample ID Matrix Sample Type Sample Container Sample Date Sample Analysis Type Preservative Remarks Time Vol Unit Type Qty Ll-12103A-FIGS-301-SS SOIL SOIL 850.01 grams NIA I 06/27/2022 0905 Gamma Spec NIA See comments LI-I 2103A-FIGS-30 I-SB SOIL SOIL 850.01 grams NIA 1 06/27/2022 0908 Gamma Spec NIA See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: Airbill Number: 7/7-o/Jol-~ GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 777lf J/72 JL/8/; Date (mm/dd/yyyy): Time: Received by: Date: (mm/dd/yyyy): Time: Ret2:l~h~:rd f fihkcrt Relinquished by: o7rzo/J(Jti fl OD Date (mm/ddYyyyy): Time: feJ/3-x Received by: 0 7/20/)()7-:2-Date: (mm1dd/yy#y):

                                                                                                                                                                                          //60 Time:

di£-

                                                                                                                             ,                            7,/22/2..L                   q(J.r Comments: Gamma Spec includes Cs137, Cs134, Co60 K-40, Bi-211/212/214, Pb-212/214, Ac-228, Tl-208 as per June 23, 2021 e-mail and follow-up phone calls
                                                                                                       -~

1 of Page 37 of 44 SDG: 590180 ZS-WM-131 Revision 0 Information Use An Eni.'1'.gy,S,w.Akms Coinpany Attachment 1 - Chain-of-Custody Form S~1 o,");- Sample ID Matrix Sample Type Sample Container Sample Date Sample Analysis Type Preservative Remarks Time Vol Unit Type Qty L 1-12103A-FIGS-302-SS SOIL SOIL 850.25 grams NIA 1 07/11/2022 0935 Gamma Spec NIA See comments L1-12103A-FIGS-303-SS SOIL SOIL 850.25 grams NIA 1 07/1112022 0937 Gamma Spec NIA See comments Ll-12103A-FIGS-304-SS SOIL SOIL 850.25 grams NIA I 0711112022 0944 Gamma Spec NIA See comments Ll-12103A-FIGS-305-SS SOIL SOIL 850.25 grams NIA I 07/11/2022 0950 Gamma Spec NIA See comments Ll-12103A-FIGS-306-SS SOIL SOIL 850.25 grams NIA I 07/11/2022 0958 Gamma Spec NIA See comments Ll-12103A-FIGS-307-SS SOIL SOIL 850.25 grams NIA l 07/11/2022 1005 Gamma Spec NIA See comments Ll-12103A-FIGS-308-SS SOIL SOIL 850.25 grams NIA 1 0711112022 1012 Gamma Spec NIA See comments Ll-I2103A-QIGS-308-SS SOIL SOIL 850.25 grams N/A 1 07/11/2022 1012 Gamma Spec NIA See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: Airbill Number: GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 07 /10/:207-~ 7771.f 3[?2 !L/8t Date (mm/ddlyyyy): Time: Received by: Date: (mm/dd/yyyy): Time: Ri7~J;~;) f/ )?,\kcrt 07/1-0/J(/F~ I/OJ Frd£x 07/Jo/Jo?J-I I! tJO Relinquished by: Date (rhm/dd/$-yyy): Time: Rece#L Date: (mmtlld/yyyy): 7/22/22. Time: Cf(J-f' Comments: Gamma Spec includes Cs137, Cs134, Co60 K-40, Bi-211/212/214, Pb-212/214, Ac-228, Tl-208 as per June 23, 2021 e-mail and follow-up phone calls of Page 38 of 44 SDG: 590180 Survey#: 2.ot1. -ooc::t7

Description:

SA!!l~.t'.S Ft,a.._ $/J)ftfllf%(e: 7 !rf/2.Z... Time:67l./S-Unit:_MLMLDG: /II/ft. ELEV: ~z' Surveyor Name(s): (Print) 0£/.J,,./ &£/<i'?G'.$ (Sign) /'d-- ~ SOLVTIONS, ... RWP: ZoZZ. ooo 1 Rad Posting: JV/n !Air Sample taken: yes.s!no Dosimetry Placement: !l!l Chest Head All dose rates in mrem/hr unless otherwise noted Thigh Other Instrument Model Serial# .SJ:b~~1tll6 Si.JR.vet- o F6:t,} so;l... 8/J.'5 IN ( lJ lo r:,14llcui/ &--r ~llf-m-J 2.:.9~.~" _az,,_L(J_Z)_~o l, t. $f,l~l.£. ~.s ___ /1"1Jil'f.::L_/J-~~~-~-~ ,_',.J_~____S_t1&_v11.._-y __ /(~ s v m Ji,~"' ~:,1 it'! l (1(- IL/-~ 2 7 1 ' '9 < /HJ.£ /J:.S. f'olLat,,,t<;. All Smears and/or Large Area Swipes , -** . -~--"--~--*---*-*-~----**~-*----------*-.. --*-*~--*-*~*

   <1000 dpm/100cm (unless noted below) 2 Massi inns                  All             D1R£GtJ                           rdilS /e.. £ 0                           1"u.m.s                         ~               BKL,o                             ,;1::.          io -"lo <..e_-
    #                      ~-y       a         #     ~-y    a          Letter     ~-y 7                           .

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C.oNIA,,.., R:,S ..... 0-ol mLjt111-DRPs detected: Yes 151/'Jo ON/A Purpose of Survey: Comments: ---*---- --------*--*--*----------~------- .. ----"'-----------------------~--- -- ---**-- - . -*. --------***------ ---**-*-**-** RWP Decon Recommended

                                                                                                   &.5_             l<&re.s                       e..           -3o_ c.,-.                   ~_g___L                             m £"T"£ a-..                            ~           t,. . e I            f'i1, A-LI3/4 n-D                 Routine                         Shielding Recommended                                                                                                                                                                                                                                      I D                 lnvestigational                 Release Recommended                                                ---*----                                         .. --------*-----                                 *-*------------- - ----*                                                                   ------*-*-*-------                 __ ,. __

D Release ~ None

                                                                                                    ..Slflfq>&'tvJ                        ff'    R'W<2)<002-0
          ~ Other (specify)

Other (specify)

     ~ff A/J pU;,vj"
         - - - -                   = Rad boundary      #/#
                                                     ~ = Contact/ 30cm dose rates
                                                                                                  --------~---~----*-*-                                  **-***------**--*----*-*---**---*-**--**-* - . -- --- -****------*                        *--------            --------
          #                = Gamma dose rate                                                                                                                                                                                                                                                                                          *-*

8 -Large area swipe

                           = Smear location Peer Check (Signature):      w:rv:./                        /                  '__Vj RPS Approval (Signature):                                            &~\,_./?

SAMPLE RECEIPT & REVIEW FORM Client: ,=t\.ualc. SDG/AR/COC/Work Order: c;s,o}'Z Received Bv: STACY 8MNE DateReceived:JULV 22 2ti22 Cirdc Applkahlc: FedEx~ress FedEx Ground UPS Field Services Courier Other Carrier and Tracking Number 777'-I :H'12 I 1486 0 Suspected Hazard Information a'.l

                                                           ;,.. z    *If Net Counts> lOOcpm on samples not marked "radioactive", contact the Radiation Safety Group for further inve.stig.ttion.

Hazard Class Shipped: UN#:

                                                                    /!4                       If UN29 I0. Is lhe Radioaclive Shipment Survey Complianl? Yes_ No_

A)Shiooed as a DOT Hazardous? B) Did the client designale the samples are to be ..,..,.. COC notation or mdioattive stickers on containeffi equal client designation. received as radioactive'! C) Did the RSO classify the samples as ,,,...,,, Maximum Net Counts Observed* (Observed Counts -Area Background Counts): -'lt_CPM / mR/Hr radioactive? Classified as: Rad I Rad 2 Rad3 COC notation or ha1.ard labels on containers equal clienl designation. D) Did lhc client designate samples are hazardous? /

                                                                    ,,. MD       or E is yes. select Hazards below.

PCB's Flammable Foreign Soil RCRA Asbeslos Beryllium Other. El Did the RSO identifv possible hazards? Sample Receipt Criteria ~

                                                          ;.. z< z"                                             Comments/Qualifiers (Required for Non-Confonning Items)

Shipping containers received intact and Circle Applicable: Seals broken Dmnuged container Leaking container Other (describe) 1 scaled? Chain of custody documents included Circle Applicable: Client con1ac1cd and provided COC COC crca1cd upon receipt 2 with shipment? 3 Samples requiring cold preservation within (0 < 6 deg. CJ?* Daily check performed and passed on IR Preservation MetlK,<l: Wet kc Ice Packs

                                                                                     *all temperatures are recorded in Celsius Temperature Device Serial #: T - ..-. .. 7 7 Dry ice None     Other:

TEMP: :Z.1 4 Sccondm)' Temperature Device Serial# (If Applicable): temperature gun? Circle Af'lplicablc: Seals hrokcn D,1ma!,.1Cd container Leaking container Other (describe) 5 Sample containers intact and sealed? Samples requiring chemical preservation Sample lD's and Containers Aflcctcd: 6 at proper pH? If Prcscrv-,llion added, Lot#: If Yes, are Encores or Soil Kits present for solids? Yes No NA (If yes. take lo VOA Freezer) Do liquid VOA vials contain acid preservation? Yes No NA_(lfonknown. select No) Do any samples require Volatile 7 JJ,re liquid VOA vials free ofheadspace? Yes_ No_ NA_ Analysis?

                                                                          .,,,. Sample lD's and containers affcclcd:
                                                                                !D's and tests affecled:

8 Samples received within holding lime? Sample !D's on COC match !D's on fD's and container:s affected: 9 bottles? Date & time on COC match date & time Circle Applicable: No dales on containers No times on containers COC missing info Other (describe) 10 on bottles? Number of containers received match Circle Applicable: No container count on COC Other (describe) 11 number indicated on COC? Are sample containers identifiable as 12 / GEL orovided bv use of GEL labels? COC form is properly signed in Circle Applicable: Not relinquished Other (describe) 13 relinquished/received sections? Comments (Use Continuation Form if needed): PM (or PMA) review: lniti,tls VVlK Date I/ 'J, 'l J1/l Page J_ of l_ I I GL-CHL-SR-001 Rev 7 Page 39 of 44 SDG: 590180

List of current GEL Certifications as of 30 August 2022 State Certification Alabama 42200 Alaska 17018 Alaska Drinking Water SC00012 Arkansas 880651 CLIA 42D0904046 California 2940 Colorado SC00012 Connecticut PH0169 DoD ELAP/ ISO17025 A2LA 2567.01 Florida NELAP E87156 Foreign Soils Permit P3301500283, P3301500253 Georgia SC00012 Georgia SDWA 967 Hawaii SC00012 Idaho SC00012 Illinois NELAP 200029 Indiana CSC01 Kansas NELAP E10332 Kentucky SDWA 90129 Kentucky Wastewater 90129 Louisiana Drinking Water LA024 Louisiana NELAP 03046 (AI33904) Maine 2019020 Maryland 270 Massachusetts MSC012 Massachusetts PFAS Approv Letter Michigan 9976 Mississippi SC00012 Nebraska NEOS2613 Nevada SC0001220233 New Hampshire NELAP 2054 New Jersey NELAP SC002 New Mexico SC00012 New York NELAP 11501 North Carolina 233 North Carolina SDWA 45709 North Dakota R158 Oklahoma 2019165 Pennsylvania NELAP 6800485 Puerto Rico SC00012 S. Carolina Radiochem 10120002 Sanitation Districts of L 9255651 South Carolina Chemistry 10120001 Tennessee TN 02934 Texas NELAP T1047042352220 Utah NELAP SC00012202136 Vermont VT87156 Virginia NELAP 460202 Washington C780 Page 40 of 44 SDG: 590180

Radiochemistry Technical Case Narrative Zion Solutions SDG #: 590180 Product: Dry Weight Preparation Method: Dry Soil Prep Preparation Procedure: GL-RAD-A-021 REV# 24 Preparation Batch: 2305626 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 590180001 L1-12201C-FIGS-201-SS 590180002 L1-12201C-FIGS-201-SB 590180003 L1-12201C-FIGS-202-SS 590180004 L1-12201D-FIGS-303-SS 590180005 L1-12201E-FIGS-202-SS 590180006 L1-12102A-FIGS-201-SB 590180007 L1-12102A-FIGS-202-SS 590180008 L1-12102A-FIGS-206-SS 590180009 L1-12103A-FIGS-301-SS 590180010 L1-12103A-FIGS-301-SB 590180011 L1-12103A-FIGS-302-SS The samples in this SDG were analyzed on an "as received" basis. Data Summary: All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions. Miscellaneous Information Additional Comments These samples are relogs. The data for this batch was transferred from batches 2293364 and 2293365. Product: Gammaspec, Gamma, Solid (Requested List) Analytical Method: DOE HASL 300, 4.5.2.3/Ga-01-R Analytical Procedure: GL-RAD-A-013 REV# 27 Analytical Batch: 2305714 Preparation Method: Dry Soil Prep Preparation Procedure: GL-RAD-A-021 REV# 24 Preparation Batch: 2305626 Page 41 of 44 SDG: 590180

The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 590180001 L1-12201C-FIGS-201-SS 590180002 L1-12201C-FIGS-201-SB 590180003 L1-12201C-FIGS-202-SS 590180004 L1-12201D-FIGS-303-SS 590180005 L1-12201E-FIGS-202-SS 590180006 L1-12102A-FIGS-201-SB 590180007 L1-12102A-FIGS-202-SS 590180008 L1-12102A-FIGS-206-SS 590180009 L1-12103A-FIGS-301-SS 590180010 L1-12103A-FIGS-301-SB 590180011 L1-12103A-FIGS-302-SS 1205169262 Method Blank (MB) 1205169263 590180001(L1-12201C-FIGS-201-SS) Sample Duplicate (DUP) 1205169264 Laboratory Control Sample (LCS) The samples in this SDG were analyzed on a "dry weight" basis. Data Summary: There are no exceptions, anomalies or deviations from the specified methods. All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable. Qualifier Information Qualifier Reason Analyte Sample Client Sample Results are considered a UI false positive Bismuth-212 590180007 L1-12102A-FIGS-202-SS due to high peak-width. Results are considered a UI false positive Bismuth-211 590180001 L1-12201C-FIGS-201-SS due to low abundance. Bismuth-211 590180002 L1-12201C-FIGS-201-SB Bismuth-211 590180003 L1-12201C-FIGS-202-SS Bismuth-211 590180005 L1-12201E-FIGS-202-SS Bismuth-211 590180007 L1-12102A-FIGS-202-SS Bismuth-211 590180008 L1-12102A-FIGS-206-SS Bismuth-211 590180010 L1-12103A-FIGS-301-SB Bismuth-211 1205169263 L1-12201C-FIGS-201-SS(590180001DUP) Page 42 of 44 SDG: 590180

Cesium-134 590180011 L1-12103A-FIGS-302-SS Product: GFPC, Sr90, Solid Analytical Method: EPA 905.0 Modified/DOE RP501 Rev. 1 Modified Analytical Procedure: GL-RAD-A-004 REV# 22 Analytical Batch: 2305650 Preparation Method: Dry Soil Prep Preparation Procedure: GL-RAD-A-021 REV# 24 Preparation Batch: 2305626 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 590180001 L1-12201C-FIGS-201-SS 590180002 L1-12201C-FIGS-201-SB 590180003 L1-12201C-FIGS-202-SS 590180004 L1-12201D-FIGS-303-SS 590180005 L1-12201E-FIGS-202-SS 590180006 L1-12102A-FIGS-201-SB 590180007 L1-12102A-FIGS-202-SS 590180008 L1-12102A-FIGS-206-SS 590180009 L1-12103A-FIGS-301-SS 590180010 L1-12103A-FIGS-301-SB 590180011 L1-12103A-FIGS-302-SS 1205169136 Method Blank (MB) 1205169137 590180011(L1-12103A-FIGS-302-SS) Sample Duplicate (DUP) 1205169138 Laboratory Control Sample (LCS) The samples in this SDG were analyzed on a "dry weight" basis. Data Summary: All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions. Preparation Information Homogenous Matrix Samples were non-homogenous matrix. samples are grainy and sandy Product: Liquid Scint Ni63, Solid Analytical Method: DOE RESL Ni-1, Modified Analytical Procedure: GL-RAD-A-022 REV# 19 Analytical Batch: 2307619 Page 43 of 44 SDG: 590180

Preparation Method: Dry Soil Prep Preparation Procedure: GL-RAD-A-021 REV# 24 Preparation Batch: 2305626 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 590180001 L1-12201C-FIGS-201-SS 590180002 L1-12201C-FIGS-201-SB 590180003 L1-12201C-FIGS-202-SS 590180004 L1-12201D-FIGS-303-SS 590180005 L1-12201E-FIGS-202-SS 590180006 L1-12102A-FIGS-201-SB 590180007 L1-12102A-FIGS-202-SS 590180008 L1-12102A-FIGS-206-SS 590180009 L1-12103A-FIGS-301-SS 590180010 L1-12103A-FIGS-301-SB 590180011 L1-12103A-FIGS-302-SS 1205173124 Method Blank (MB) 1205173125 590180001(L1-12201C-FIGS-201-SS) Sample Duplicate (DUP) 1205173126 Laboratory Control Sample (LCS) The samples in this SDG were analyzed on a "dry weight" basis. Data Summary: There are no exceptions, anomalies or deviations from the specified methods. All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable. Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative. Page 44 of 44 SDG: 590180

September 15, 2022 Mr. Gerry Wood Zion Solutions 100 Shiloh Blvd. Zion, Illinois 60099 Re: Zion Solutions Work Order: 592267

Dear Mr. Wood:

GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the sample(s) we received on July 22, 2022. This original data report has been prepared and reviewed in accordance with GELs standard operating procedures. Test results for NELAP or ISO 17025 accredited tests are verified to meet the requirements of those standards, with any exceptions noted. The results reported relate only to the items tested and to the sample as received by the laboratory. These results may not be reproduced except as full reports without approval by the laboratory. Copies of GELs accreditations and certifications can be found on our website at www.gel.com. Our policy is to provide high quality, personalized analytical services to enable you to meet your analytical needs on time every time. We trust that you will find everything in order and to your satisfaction. If you have any questions, please do not hesitate to call me at (843) 556-8171, ext. 1605. Sincerely, PM_SIGN_HERE Zachary Worsham Project Manager Purchase Order: 702793 Enclosures Page 1 of 24 SDG: 592267

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 (843) 5568171 www.gel.com Certificate of Analysis Report for ENRG080 Zion Solutions (702793) Client SDG: 592267 GEL Work Order: 592267 The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

              ** Analyte is a Tracer compound
              ** Analyte is a surrogate compound U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.

UI Gamma SpectroscopyUncertain identification Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the Certificate of Analysis. The designation ND, if present, appears in the result column when the analyte concentration is not detected above the limit as defined in the U qualifier above. This data report has been prepared and reviewed in accordance with GEL Laboratories LLC standard operating procedures. Please direct any questions to your Project Manager, Zachary Worsham. Reviewed by USER_SIGN_HERE Page 2 of 24 SDG: 592267

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: September 15, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-QIGS-201-SS Project: ENRG08001 Sample ID: 592267001 Client ID: ENRG080 Matrix: Soil Collect Date: 15-JUN-22 Receive Date: 22-JUL-22 Collector: Client Moisture: 3.19% Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Rad Gamma Spec Analysis Gammaspec, Gamma, Solid (Requested List) "Dry Weight Corrected" Actinium-228 UI 0.000 +/-0.139 0.200 +/-0.196 pCi/g MXR1 09/09/22 1050 2314318 1 Bismuth-211 U 0.111 +/-0.429 0.201 +/-0.438 pCi/g Bismuth-212 U 0.220 +/-0.228 0.488 +/-0.250 pCi/g Bismuth-214 0.193 +/-0.0821 0.0606 +/-0.0840 pCi/g Cesium-134 U -0.00584 +/-0.0193 0.0356 +/-0.0195 0.173 pCi/g Cesium-137 2.08 +/-0.108 0.0376 +/-0.216 0.363 pCi/g Cobalt-60 U 0.0149 +/-0.0184 0.0417 +/-0.0196 0.109 pCi/g Europium-152 U -0.0262 +/-0.0487 0.0827 +/-0.0501 0.869 pCi/g Europium-154 U -0.0507 +/-0.0628 0.0944 +/-0.0670 0.799 pCi/g Lead-212 0.220 +/-0.0694 0.0551 +/-0.0717 pCi/g Lead-214 0.332 +/-0.0740 0.118 +/-0.0787 pCi/g Potassium-40 9.86 +/-0.882 0.297 +/-1.24 pCi/g Thallium-208 0.0467 +/-0.0327 0.0323 +/-0.0330 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr90, Solid "Dry Weight Corrected" Strontium-90 U 0.00694 +/-0.0188 0.0335 +/-0.0188 0.0425 pCi/g KH1 09/14/22 1449 2313911 2 Rad Liquid Scintillation Analysis Liquid Scint Ni63, Solid "Dry Weight Corrected" Nickel-63 U 1.26 +/-5.55 9.55 +/-5.56 19.5 pCi/g TXJ1 09/14/22 0516 2313975 3 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 CM2 07/22/22 1428 2313896 The following Analytical Methods were performed Method Description 1 DOE HASL 300, 4.5.2.3/Ga-01-R 2 EPA 905.0 Modified/DOE RP501 Rev. 1 Modified 3 DOE RESL Ni-1, Modified Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, Solid "Dry Weight Corrected" 2313911 116 (25%-125%) Nickel Carrier Liquid Scint Ni63, Solid "Dry Weight Corrected" 2313975 82.8 (25%-125%) Page 3 of 24 SDG: 592267

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Zion Solutions Address : 100 Shiloh Blvd. Zion, Illinois 60099 Report Date: September 15, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12201C-QIGS-201-SS Project: ENRG08001 Sample ID: 592267001 Client ID: ENRG080 Parameter Qualifier Result Uncertainty MDC TPU RL Units PF DF Analyst Date Time Batch Mtd. Surrogate/Tracer Recovery Test Batch ID Recovery% Acceptable Limits Notes: The MDC is a sample specific MDC. TPU is calculated at the 95% confidence level (1.96-sigma). Column headers are defined as follows: DF: Dilution Factor Mtd.: Method DL: Detection Limit PF: Prep Factor Lc/LC: Critical Level RL: Reporting Limit MDA: Minimum Detectable Activity TPU: Total Propagated Uncertainty MDC: Minimum Detectable Concentration Page 4 of 24 SDG: 592267

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Report Date: September 15, 2022 Client : Zion Solutions Page 1 of 5 100 Shiloh Blvd. Zion, Illinois

Contact:

Mr. Gerry Wood Workorder: 592267 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 2314318 QC1205186656 592267001 DUP Actinium-228 UI 0.000 0.182 pCi/g 9.55 (0% - 100%) MXR1 09/09/22 13:14 Uncert: +/-0.139 +/-0.136 TPU: +/-0.196 +/-0.137 Bismuth-211 U 0.111 UI 0.000 pCi/g 0 N/A Uncert: +/-0.429 +/-0.233 TPU: +/-0.438 +/-0.369 Bismuth-212 U 0.220 U 0.347 pCi/g 0 N/A Uncert: +/-0.228 +/-0.431 TPU: +/-0.250 +/-0.433 Bismuth-214 0.193 0.218 pCi/g 11.8 (0% - 100%) Uncert: +/-0.0821 +/-0.0658 TPU: +/-0.0840 +/-0.0685 Cesium-134 U -0.00584 UI 0.000 pCi/g 0 N/A Uncert: +/-0.0193 +/-0.0343 TPU: +/-0.0195 +/-0.0440 Cesium-137 2.08 2.13 pCi/g 2.56 (0%-20%) Uncert: +/-0.108 +/-0.110 TPU: +/-0.216 +/-0.214 Cobalt-60 U 0.0149 U -0.00887 pCi/g 0 N/A Uncert: +/-0.0184 +/-0.0212 TPU: +/-0.0196 +/-0.0216 Europium-152 U -0.0262 U 0.0500 pCi/g 0 N/A Uncert: +/-0.0487 +/-0.0476 TPU: +/-0.0501 +/-0.0529 Europium-154 U -0.0507 U 0.00199 pCi/g 0 N/A Uncert: +/-0.0628 +/-0.0664 TPU: +/-0.0670 +/-0.0664 Lead-212 0.220 0.206 pCi/g 6.86 (0% - 100%) Uncert: +/-0.0694 +/-0.0728 TPU: +/-0.0717 +/-0.0748 Lead-214 0.332 0.226 pCi/g 37.9 (0% - 100%) Uncert: +/-0.0740 +/-0.0847 TPU: +/-0.0787 +/-0.0867 Potassium-40 9.86 10.0 pCi/g 1.64 (0%-20%) Uncert: +/-0.882 +/-0.916 TPU: +/-1.24 +/-1.29 Thallium-208 0.0467 0.0593 pCi/g 23.7 (0% - 100%) Uncert: +/-0.0327 +/-0.0328 TPU: +/-0.0330 +/-0.0332 QC1205186657 LCS Americium-241 485 500 pCi/g 103 (75%-125%) MXR1 09/09/22 13:15 Page 5 of 24 SDG: 592267

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 592267 Page 2 of 5 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 2314318 Uncert: +/-9.48 TPU: +/-42.7 Actinium-228 U 0.591 pCi/g Uncert: +/-1.81 TPU: +/-1.83 Bismuth-211 U -1.16 pCi/g Uncert: +/-2.37 TPU: +/-2.43 Bismuth-212 U -1.66 pCi/g Uncert: +/-4.94 TPU: +/-5.00 Bismuth-214 1.42 pCi/g Uncert: +/-1.83 TPU: +/-1.94 Cesium-134 U 0.101 pCi/g Uncert: +/-0.433 TPU: +/-0.436 Cesium-137 157 154 pCi/g 98.2 (75%-125%) Uncert: +/-2.88 TPU: +/-14.2 Cobalt-60 74.7 73.4 pCi/g 98.2 (75%-125%) Uncert: +/-2.43 TPU: +/-6.47 Europium-152 U -0.672 pCi/g Uncert: +/-1.15 TPU: +/-1.19 Europium-154 U -0.283 pCi/g Uncert: +/-0.709 TPU: +/-0.721 Lead-212 U 0.320 pCi/g Uncert: +/-0.573 TPU: +/-0.591 Lead-214 U -0.247 pCi/g Uncert: +/-0.878 TPU: +/-0.886 Potassium-40 U 0.322 pCi/g Uncert: +/-1.68 TPU: +/-1.68 Thallium-208 U 0.0444 pCi/g Uncert: +/-0.351 TPU: +/-0.351 QC1205186655 MB Actinium-228 U 0.000207 pCi/g MXR1 09/09/2210:50 Uncert: +/-0.0684 TPU: +/-0.0684 Bismuth-211 U 0.0964 pCi/g Page 6 of 24 SDG: 592267

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 592267 Page 3 of 5 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 2314318 Uncert: +/-0.0874 TPU: +/-0.0980 Bismuth-212 U 0.00410 pCi/g Uncert: +/-0.147 TPU: +/-0.147 Bismuth-214 U -0.0131 pCi/g Uncert: +/-0.0341 TPU: +/-0.0346 Cesium-134 U -0.000891 pCi/g Uncert: +/-0.0139 TPU: +/-0.0140 Cesium-137 U 0.00613 pCi/g Uncert: +/-0.0120 TPU: +/-0.0123 Cobalt-60 U -0.0133 pCi/g Uncert: +/-0.0162 TPU: +/-0.0173 Europium-152 U -0.0335 pCi/g Uncert: +/-0.0291 TPU: +/-0.0329 Europium-154 U -0.00487 pCi/g Uncert: +/-0.0403 TPU: +/-0.0404 Lead-212 UI 0.000 pCi/g Uncert: +/-0.0486 TPU: +/-0.0582 Lead-214 U 0.0311 pCi/g Uncert: +/-0.0311 TPU: +/-0.0342 Potassium-40 U -0.112 pCi/g Uncert: +/-0.181 TPU: +/-0.188 Thallium-208 U -0.0112 pCi/g Uncert: +/-0.0147 TPU: +/-0.0156 Rad Gas Flow Batch 2313911 QC1205185815 592267001 DUP Strontium-90 U 0.00694 U -0.0117 pCi/g 0 N/A KH1 09/14/22 14:49 Uncert: +/-0.0188 +/-0.0158 TPU: +/-0.0188 +/-0.0158 QC1205185816 LCS Strontium-90 1.79 1.43 pCi/g 80.1 (75%-125%) KH1 09/14/22 14:49 Uncert: +/-0.123 TPU: +/-0.301 QC1205185814 MB Page 7 of 24 SDG: 592267

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 592267 Page 4 of 5 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gas Flow Batch 2313911 Strontium-90 U 0.000567 pCi/g KH1 09/14/22 14:49 Uncert: +/-0.0216 TPU: +/-0.0216 Rad Liquid Scintillation Batch 2313975 QC1205185957 592267001 DUP Nickel-63 U 1.26 U -1.52 pCi/g 0 N/A TXJ1 09/14/22 05:48 Uncert: +/-5.55 +/-5.67 TPU: +/-5.56 +/-5.67 QC1205185958 LCS Nickel-63 261 263 pCi/g 101 (75%-125%) TXJ1 09/14/22 06:03 Uncert: +/-11.1 TPU: +/-49.9 QC1205185956 MB Nickel-63 U 0.975 pCi/g TXJ1 09/14/22 05:32 Uncert: +/-5.24 TPU: +/-5.25 Notes: TPU and Counting Uncertainty are calculated at the 95% confidence level (1.96-sigma). The Qualifiers in this report are defined as follows:

 **     Analyte is a Tracer compound
 <      Result is less than value reported
 >      Result is greater than value reported BD     Results are either below the MDC or tracer recovery is low FA     Failed analysis.

H Analytical holding time was exceeded J See case narrative for an explanation J Value is estimated K Analyte present. Reported value may be biased high. Actual value is expected to be lower. L Analyte present. Reported value may be biased low. Actual value is expected to be higher. M M if above MDC and less than LLD M REMP Result > MDC/CL and < RDL N/A RPD or %Recovery limits do not apply. N1 See case narrative ND Analyte concentration is not detected above the detection limit NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER. R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD. UI Gamma Spectroscopy--Uncertain identification UJ Gamma Spectroscopy--Uncertain identification Page 8 of 24 SDG: 592267

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 592267 Page 5 of 5 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time UL Not considered detected. The associated number is the reported concentration, which may be inaccurate due to a low bias. X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y Other specific qualifiers were required to properly define the results. Consult case narrative.

^       RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry.

h Preparation or preservation holding time was exceeded N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more or %RPD not applicable.

** Indicates analyte is a surrogate/tracer compound.
^ The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptence criteria when the sample is greater than five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the RL is used to evaluate the DUP result.

For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations. Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary. Page 9 of 24 SDG: 592267

Page 10 of 24 SDG: 592267 ZS-WM-131 Revision 0 Information Use An EmffgySok1lions ConiP$ny Attachment 1 - Chai11_-of-Custody Fonn 5f10;,*~ Sample ID Matrix Sample Type Sample Container Sample Date Sample Analysis Type Preservative Remarks Time Vol Unit Type Qty Ll-12102A-FIGS-202-SS SOIL SOIL 850.38 grams NIA l 07111/2022 1015 Gamma Spec NIA See comments Ll-12102A-FIGS-203-SS SOIL SOIL 850.38 grams NIA 1 07/11/2022 1028 Gamma.Spec NIA See comments L l-12102A-FIGS-204-SS SOIL SOIL 850.38 grams NIA l 07111/2022 1035 Gamma.Spec NIA See comments Ll-!2102A-FIGS-205-SS SOIL SOIL 850.38 grams NIA I 07/ll/2022 1043 Gamma.Spec NIA See comments Ll-l2102A-QIGS-205-SS SOIL SOIL 850.38 grams N/A 1 07lll/2022 1043 Gamma.Spec NIA See comments L 1-12102A-FIGS-206-SS SOIL SOIL 850.38 grams NIA I 07lll/2022 1050 Gamma Spec NIA See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: Airbill Number: GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 07/20/202i 777'-I 3172 f lflb Date (mm/dd/yyyy): Time: Received by: Date: (mm/dd/yyyy): Time: R{j7;);~~d f: /Zi'c kfti Relinquished by: 0 7fl- oIJOZ2v ll OD Date (ihm/ddlfyyy): Time: fr0J fx Received ~:,I' ~ 01/10/J()JL-Date: (mfu/dd/yyyy):

                                                                                                                                                                                              //Oo Time:
                                                                                                                           .//fl;,-A         '()1)-,.;      7/2z/2z                        90-f" Comments: Gamma Spec includes Cs137, Cs134, Co60 K-40, Bi-211/212/214, Pb-212/214, Ac-228, Tl-/oa as per June 23, 2021 e-mail and follow-up phone calls of Page 11 of 24 SDG: 592267 ZS-WM-131 Revision 0 Information Use Attachment 1 - Chain-of-Custody Form 5t101:J1-Sample ID            Matrix     Sample Type                Sample Container             Sample Date   Sample      Analysis Type    Preservative         Remarks Time Vol       Unit      Type    Qty Ll-12102A-FIGS-201-SS       SOIL           SOIL         850.53      grams      NIA     l        07102/2022    0802       Gamma Spec           N/A            See comments Ll-12102A-FIGS-20 I-SB      SOIL           SOIL         850.53      grams      NIA     I        07102/2022    0830       Gamma Spec           N/A            See comments Laboratory:                              Date Submitted To Lab:                      Ship Container No.:     Cooler Temperature:          Airbill Number:

GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 0 7/Jo/20-zz, '77711- 3172- [1/rJp Date (mmldd/yyyy): Time: Received by: Date: (mm/dd/yyyy): Time: Re74;;~x;:rJ £ /?/ch rt ()7/20/207-i II oo F(c! £Y: 07 /;c;/202, //00 Relinquished by: Dat! (mm/~d/yyyy): Time: Rece#?L D;t~;z Time:

                                                                                                                                                                                       <;(JS Comments: Gamma Spec includes Cs137, Cs134, Co60 K-40, Bi-211/212/214, Pb-212/214, Ac-228, Tl-208 as per June 23, 2021 e-mail and follow-up phone calls 1 of                                                                                                          -~

Page 12 of 24 SDG: 592267 ZS-WM-131 Revision 0 Information Use Attachment 1 - Chain-of-Custody Fonn

                                                                                                                                                                ,;g, 031-.

Sample ID Matrix Sample Type Sample Container Sample Date Sample Analysis Type Preservative Remarks Time Vol Unit Type Qty Ll-1220IE-FIGS-201-SS SOIL SOIL 850.29 grams NIA l 0710612022 0936 Gamma Spee NIA See comments L 1-1220 I E-FIGS-202-SS SOIL SOIL 850.29 grams NIA I 07/06/2022 0940 Gamma Spec NIA See comments Ll-12201E-QIGS-202-SS SOIL SOIL 850.29 grams NIA l 07/06/2022 0940 Gamma Spec NIA See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: Airbill Number: GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 0 7/JO/:ZO 22- 777¥ 3!72- ll/3{:; Date (mm/dd/yyyy): Time: Received bv: Date: (rnm/dd/yyyy): Time: R~T;h:~d f_f1/ikvrl Relinquished by: 07 /J(l/JOJ Datef(mm/dMyyyy):

                                                                                                //0()

Time: [r,J fy 01/20/20J..2-Date: (mmfdd/yy))Y):

                                                                                                                                                                                        //00 Time:

Received;;~~~ 7/22/22.., 9G2S Comments: Gamma Spec includes Cs137, Cs134, Co60 K-40, Bi-211/212/214, Pb-212/214, Ac-228, Tl-20!f'as per June 23, 2021 e-mail and follow-up phone calls of Page 13 of 24 SDG: 592267 ZS-WM-131 Revision 0 Information Use Attachment 1 - Chain-of-Custody Form ~ ' (J3i., Sample JD Matrix Sample Type Sample Container Sample Date Sample Analysis Type Preservative Remarks Time Vol Unit Type Qty Ll-12201D-FIGS-301-SS SOIL SOJL 850.51 grams NIA l 07/06/2022 0920 Gamma Spec NIA See comments Ll-1220 I D-FIGS-302-SS SOIL SOIL 850.51 grams NIA I 07/06/2022 0922 Gamma Spec NIA See comments Ll-l2201D-FIGS-303-SS SOIL SOIL 850.51 grams NIA I 07/06/2022 0925 Gamma Spec NIA See comments Ll-12201D-QIGS-303-SS SOIL SOIL 850.51 grams NIA l 07/06/2022 0925 Gamma Spec NIA See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: Airbill Number: 07/20/ ,2o;z2, GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 7771/ "3172 11/Sb Relinquished by: Date (mm/dd/yyyy): Time: Received by: Date: {mm/dd/yyyy): Time: f?/cAard r,-R/ckeri Relinquished by: ()J/20/202-i Date(mm!d6/yyyy):

                                                                                                 // oO Time:

(cJ fx () 7/20/1022 /!O() Receiv~ Date: (~~dd!A,yy): Time:

                                                                                                                          !IJ'4       tfd/94'(           7/zJ;/22.                       '?OS Comments: Gamma Spec includes Cs 137, Cs134, Co60 K-40, Bi-211/212/214, Pb-212/214, Ac-228, Tl-2~8 as per June 23, 2021 e-mail and follow-up phone calls of -~

1

Page 14 of 24 SDG: 592267 ZS-WM-131 Revision 0 Information Use Attachment 1 - Chain-of-Custody Form st,o,~ Sample ID Matrix Sample Type Sample Container Sample Date Sample Analysis Type Preservative Remarks Time Vol Unit Type Qty L l-l 2201C-FIGS-202-SS SOIL SOIL 850.38 grams NIA 1 0711212022 1340 Gamma Spec NIA See comments L1-12201 C-FIGS-203-SS SOIL SOIL 850.38 grams NIA 1 07112/2022 1348 Gamma Spec NIA See comments Ll-12201C-FJGS-204-SS SOIL SOIL 850.38 grams NIA I 0711212022 1352 Gamma Spec NIA See comments Ll-12201C-FIGS-205-SS SOIL SOIL 850.38 grams NIA l 0711212022 1356 Gamma Spec NIA See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: Airbill Number: 07 /20/ 207 GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 777~ 3112 !'18b Date (mmldd/yyyy): Time: Received by: Date: (mm/ddlyyyy): Time: Re~~uf;;;;;td f- rf/vkvrf 07I 20 )202-Z.. II ()CJ reJe:1 07'10/2022-  !/00 Relinquished by: Date (mm/dd/fyyy): Time: Date: (m6vdd/5-yyy): Time: Recei~,& ilA '{r(9IN' 7/z.2./zL 9G..5' Comments: Gamma Spec includes Cs137, Cs 134, Co60 K-40, Bi-211/212/214, Pb-212/214, Ac-228, Tl-268 as per June 23, 2021 e-mail and follow-up phone calls l of ~1 -

Page 15 of 24 SDG: 592267 ZS-WM-131 Revision 0 Information Use An EnergyS:l!utiorrs Comp$:ny Attachment 1 - Chain-of-Custody Form S:-&<()'?V Sample ID Matrix Sample Type Sample Container Sample Date Sample Analysis Type Preservative Remarks Time Vol Unit Type Qty Ll-1220I C-FIGS-201-SS SOIL SOIL 850.88 grams NIA I 06115/2022 0940 Gamma Spec NIA See comments L1-12201C-QIGS-201-SS SOIL SOIL 850.88 grams NIA I 06/1512022 0940 Gamma Spec NIA See comments L 1-12201C-FIGS-201-SB SOIL SOIL 850.88 grams NIA I 06/15/2022 0950 Gamma Spec NIA See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: Airbill Number: GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 01/ 2 0/ 2 o;L2-- 777 t/3f 7~_,Jlf 8b Date (mm/dd/yyyy): Time: Received by: Date: (mm/dd/yyyy): R~}:h~b;J k K/rl<irf Time: 01/20/201- !loo (JU ()7/ ;.0/1022- lloo Rec~~~ Relinquished by: Date (1nm/dd/yyyy): Time: Date: (mm/dd3/yyyy): Time:

                                                                                                                                                          -z /zzlz:2                          q~(:15
                                                                                                                                   .{o                          l      '

Comments: Gamma Spec includes Cs137, Cs134, Co60 K-40, Bi-211/212/214, Pb-212/214, Ac-228, Tl- 08 as per June 23, 2021 e-mail and follow-up phone calls of Page 16 of 24 SDG: 592267 ZS-WM-131 Revision 0 Information Use S8'1o}t-Attachment 1 - Chain-of-Custody Form Sample ID Matrix Sample Type Sample Container Sample Date Sample Analysis Type Preservative Remarks Time Vol Unit Type Qty Ll-12103A-FIGS-301-SS SOIL SOIL 850.01 grams NIA I 06/27/2022 0905 Gamma Spec NIA See comments LI-I 2103A-FIGS-30 I-SB SOIL SOIL 850.01 grams NIA 1 06/27/2022 0908 Gamma Spec NIA See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: Airbill Number: 7/7-o/Jol-~ GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 777lf J/72 JL/8/; Date (mm/dd/yyyy): Time: Received by: Date: (mm/dd/yyyy): Time: Ret2:l~h~:rd f fihkcrt Relinquished by: o7rzo/J(Jti fl OD Date (mm/ddYyyyy): Time: feJ/3-x Received by: 0 7/20/)()7-:2-Date: (mm1dd/yy#y):

                                                                                                                                                                                          //60 Time:

di£-

                                                                                                                             ,                            7,/22/2..L                   q(J.r Comments: Gamma Spec includes Cs137, Cs134, Co60 K-40, Bi-211/212/214, Pb-212/214, Ac-228, Tl-208 as per June 23, 2021 e-mail and follow-up phone calls
                                                                                                       -~

1 of Page 17 of 24 SDG: 592267 ZS-WM-131 Revision 0 Information Use An Eni.'1'.gy,S,w.Akms Coinpany Attachment 1 - Chain-of-Custody Form S~1 o,");- Sample ID Matrix Sample Type Sample Container Sample Date Sample Analysis Type Preservative Remarks Time Vol Unit Type Qty L 1-12103A-FIGS-302-SS SOIL SOIL 850.25 grams NIA 1 07/11/2022 0935 Gamma Spec NIA See comments L1-12103A-FIGS-303-SS SOIL SOIL 850.25 grams NIA 1 07/1112022 0937 Gamma Spec NIA See comments Ll-12103A-FIGS-304-SS SOIL SOIL 850.25 grams NIA I 0711112022 0944 Gamma Spec NIA See comments Ll-12103A-FIGS-305-SS SOIL SOIL 850.25 grams NIA I 07/11/2022 0950 Gamma Spec NIA See comments Ll-12103A-FIGS-306-SS SOIL SOIL 850.25 grams NIA I 07/11/2022 0958 Gamma Spec NIA See comments Ll-12103A-FIGS-307-SS SOIL SOIL 850.25 grams NIA l 07/11/2022 1005 Gamma Spec NIA See comments Ll-12103A-FIGS-308-SS SOIL SOIL 850.25 grams NIA 1 0711112022 1012 Gamma Spec NIA See comments Ll-I2103A-QIGS-308-SS SOIL SOIL 850.25 grams N/A 1 07/11/2022 1012 Gamma Spec NIA See comments Laboratory: Date Submitted To Lab: Ship Container No.: Cooler Temperature: Airbill Number: GEL Laboratories, LLC NA NA 2040 Savage Road Charleston, SC 29407 07 /10/:207-~ 7771.f 3[?2 !L/8t Date (mm/ddlyyyy): Time: Received by: Date: (mm/dd/yyyy): Time: Ri7~J;~;) f/ )?,\kcrt 07/1-0/J(/F~ I/OJ Frd£x 07/Jo/Jo?J-I I! tJO Relinquished by: Date (rhm/dd/$-yyy): Time: Rece#L Date: (mmtlld/yyyy): 7/22/22. Time: Cf(J-f' Comments: Gamma Spec includes Cs137, Cs134, Co60 K-40, Bi-211/212/214, Pb-212/214, Ac-228, Tl-208 as per June 23, 2021 e-mail and follow-up phone calls of Page 18 of 24 SDG: 592267 Survey#: 2.ot1. -ooc::t7

Description:

SA!!l~.t'.S Ft,a.._ $/J)ftfllf%(e: 7 !rf/2.Z... Time:67l./S-Unit:_MLMLDG: /II/ft. ELEV: ~z' Surveyor Name(s): (Print) 0£/.J,,./ &£/<i'?G'.$ (Sign) /'d-- ~ SOLVTIONS, ... RWP: ZoZZ. ooo 1 Rad Posting: JV/n !Air Sample taken: yes.s!no Dosimetry Placement: !l!l Chest Head All dose rates in mrem/hr unless otherwise noted Thigh Other Instrument Model Serial# .SJ:b~~1tll6 Si.JR.vet- o F6:t,} so;l... 8/J.'5 IN ( lJ lo r:,14llcui/ &--r ~llf-m-J 2.:.9~.~" _az,,_L(J_Z)_~o l, t. $f,l~l.£. ~.s ___ /1"1Jil'f.::L_/J-~~~-~-~ ,_',.J_~____S_t1&_v11.._-y __ /(~ s v m Ji,~"' ~:,1 it'! l (1(- IL/-~ 2 7 1 ' '9 < /HJ.£ /J:.S. f'olLat,,,t<;. All Smears and/or Large Area Swipes , -** . -~--"--~--*---*-*-~----**~-*----------*-.. --*-*~--*-*~*

   <1000 dpm/100cm (unless noted below) 2 Massi inns                  All             D1R£GtJ                           rdilS /e.. £ 0                           1"u.m.s                         ~               BKL,o                             ,;1::.          io -"lo <..e_-
    #                      ~-y       a         #     ~-y    a          Letter     ~-y 7                           .

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                                                                                  /                fol,.(..       O.t$_~__ Sm.£A.@..:S___ . <                                                /110 fl- _______ 8 - . I~ .. 'Df                                          !:""_/             o.. -                1 tlf---
                                                                                                                                                                                                                                                                                                          /$". --~***-*--*---
                                                                                                                                                                                                                                                                                                                --**          ~-----*----~*-*---***---*------**--**** -*

C0<1 tVT.CA l!)tl/ A- .50.so.

                                                                   .v
                                                       ;.,I I/                                                 **------****-                                          *---------~----*--***-----***-***-~ --------***-** - **-*----                          - -*-*--"-*---------* --- ------****-*-* -                    ---   ..
                                                     /4                                           ~~G.L_dU~                                                                                                                   ~       /80            e:..t:.p~pa.oG£. Atc.c~ .

V

                                      /
                               /                                                                  C..e-lJLJA-c."J                      _Dc.sc .. IJ..~T£>                                       (1,-v                /+LL.. -- ,$01 _(..___ B,+6S                                         frtl/QSJJ lff l~&>                                            -----**-*---****-*-

V

       /                                                                                                                                        <;

C.oNIA,,.., R:,S ..... 0-ol mLjt111-DRPs detected: Yes 151/'Jo ON/A Purpose of Survey: Comments: ---*---- --------*--*--*----------~------- .. ----"'-----------------------~--- -- ---**-- - . -*. --------***------ ---**-*-**-** RWP Decon Recommended

                                                                                                   &.5_             l<&re.s                       e..           -3o_ c.,-.                   ~_g___L                             m £"T"£ a-..                            ~           t,. . e I            f'i1, A-LI3/4 n-D                 Routine                         Shielding Recommended                                                                                                                                                                                                                                      I D                 lnvestigational                 Release Recommended                                                ---*----                                         .. --------*-----                                 *-*------------- - ----*                                                                   ------*-*-*-------                 __ ,. __

D Release ~ None

                                                                                                    ..Slflfq>&'tvJ                        ff'    R'W<2)<002-0
          ~ Other (specify)

Other (specify)

     ~ff A/J pU;,vj"
         - - - -                   = Rad boundary      #/#
                                                     ~ = Contact/ 30cm dose rates
                                                                                                  --------~---~----*-*-                                  **-***------**--*----*-*---**---*-**--**-* - . -- --- -****------*                        *--------            --------
          #                = Gamma dose rate                                                                                                                                                                                                                                                                                          *-*

8 -Large area swipe

                           = Smear location Peer Check (Signature):      w:rv:./                        /                  '__Vj RPS Approval (Signature):                                            &~\,_./?

SAMPLE RECEIPT & REVIEW FORM Client: ,=t\.ualc. SDG/AR/COC/Work Order: c;s,o}'Z Received Bv: STACY 8MNE DateReceived:JULV 22 2ti22 Cirdc Applkahlc: FedEx~ress FedEx Ground UPS Field Services Courier Other Carrier and Tracking Number 777'-I :H'12 I 1486 0 Suspected Hazard Information a'.l

                                                           ;,.. z    *If Net Counts> lOOcpm on samples not marked "radioactive", contact the Radiation Safety Group for further inve.stig.ttion.

Hazard Class Shipped: UN#:

                                                                    /!4                       If UN29 I0. Is lhe Radioaclive Shipment Survey Complianl? Yes_ No_

A)Shiooed as a DOT Hazardous? B) Did the client designale the samples are to be ..,..,.. COC notation or mdioattive stickers on containeffi equal client designation. received as radioactive'! C) Did the RSO classify the samples as ,,,...,,, Maximum Net Counts Observed* (Observed Counts -Area Background Counts): -'lt_CPM / mR/Hr radioactive? Classified as: Rad I Rad 2 Rad3 COC notation or ha1.ard labels on containers equal clienl designation. D) Did lhc client designate samples are hazardous? /

                                                                    ,,. MD       or E is yes. select Hazards below.

PCB's Flammable Foreign Soil RCRA Asbeslos Beryllium Other. El Did the RSO identifv possible hazards? Sample Receipt Criteria ~

                                                          ;.. z< z"                                             Comments/Qualifiers (Required for Non-Confonning Items)

Shipping containers received intact and Circle Applicable: Seals broken Dmnuged container Leaking container Other (describe) 1 scaled? Chain of custody documents included Circle Applicable: Client con1ac1cd and provided COC COC crca1cd upon receipt 2 with shipment? 3 Samples requiring cold preservation within (0 < 6 deg. CJ?* Daily check performed and passed on IR Preservation MetlK,<l: Wet kc Ice Packs

                                                                                     *all temperatures are recorded in Celsius Temperature Device Serial #: T - ..-. .. 7 7 Dry ice None     Other:

TEMP: :Z.1 4 Sccondm)' Temperature Device Serial# (If Applicable): temperature gun? Circle Af'lplicablc: Seals hrokcn D,1ma!,.1Cd container Leaking container Other (describe) 5 Sample containers intact and sealed? Samples requiring chemical preservation Sample lD's and Containers Aflcctcd: 6 at proper pH? If Prcscrv-,llion added, Lot#: If Yes, are Encores or Soil Kits present for solids? Yes No NA (If yes. take lo VOA Freezer) Do liquid VOA vials contain acid preservation? Yes No NA_(lfonknown. select No) Do any samples require Volatile 7 JJ,re liquid VOA vials free ofheadspace? Yes_ No_ NA_ Analysis?

                                                                          .,,,. Sample lD's and containers affcclcd:
                                                                                !D's and tests affecled:

8 Samples received within holding lime? Sample !D's on COC match !D's on fD's and container:s affected: 9 bottles? Date & time on COC match date & time Circle Applicable: No dales on containers No times on containers COC missing info Other (describe) 10 on bottles? Number of containers received match Circle Applicable: No container count on COC Other (describe) 11 number indicated on COC? Are sample containers identifiable as 12 / GEL orovided bv use of GEL labels? COC form is properly signed in Circle Applicable: Not relinquished Other (describe) 13 relinquished/received sections? Comments (Use Continuation Form if needed): PM (or PMA) review: lniti,tls VVlK Date I/ 'J, 'l J1/l Page J_ of l_ I I GL-CHL-SR-001 Rev 7 Page 19 of 24 SDG: 592267

Zachary Worsham From: Gerald Wood-ext <glwood-ext@energysolutions.com> Sent: Thursday, September 8, 2022 6:06 AM To: Zachary Worsham

Subject:

Samples in GEL custody requiring further analysis Follow Up Flag: Follow up Flag Status: Flagged [EXTERNAL EMAIL] DO NOT CLICK links or attachments unless you recognize the sender and know the content is safe. Hello Zac, Please analyze the following samples on a 10 day TAT, if any of the requested analysis cannot be executed on a 10 day TAT please let me know. The Sr90 and Ni63 MDAs are listed as well as the other nuclides we more typically request. The following samples in GEL custody will need 5 ROC Soil analysis: L112201CQIGS201SS 5 ROC (soil) Nuclide MDA (pCi/gm) K-40 -- Bi-211/212/214 -- Pb212/214 -- Ac-228 -- Ti-208 -- Co-60 1.091E-01 Cs-134 1.733E-01 Cs-137 3.630E-01 Eu-152 8.700E-01 Eu-154 8.000E-01 Ni-63 1.953E+01 Sr-90 4.250E-02 B/R, Gerry W. Gerald L. Wood ZSRP Site Closure Team Zion Nuclear Power Station glwoodext@energysolutions.com 518.683.8849 1 Page 20 of 24 SDG: 592267

List of current GEL Certifications as of 15 September 2022 State Certification Alabama 42200 Alaska 17018 Alaska Drinking Water SC00012 Arkansas 880651 CLIA 42D0904046 California 2940 Colorado SC00012 Connecticut PH0169 DoD ELAP/ ISO17025 A2LA 2567.01 Florida NELAP E87156 Foreign Soils Permit P3301500283, P3301500253 Georgia SC00012 Georgia SDWA 967 Hawaii SC00012 Idaho SC00012 Illinois NELAP 200029 Indiana CSC01 Kansas NELAP E10332 Kentucky SDWA 90129 Kentucky Wastewater 90129 Louisiana Drinking Water LA024 Louisiana NELAP 03046 (AI33904) Maine 2019020 Maryland 270 Massachusetts MSC012 Massachusetts PFAS Approv Letter Michigan 9976 Mississippi SC00012 Nebraska NEOS2613 Nevada SC0001220233 New Hampshire NELAP 2054 New Jersey NELAP SC002 New Mexico SC00012 New York NELAP 11501 North Carolina 233 North Carolina SDWA 45709 North Dakota R158 Oklahoma 2022137 Pennsylvania NELAP 6800485 Puerto Rico SC00012 S. Carolina Radiochem 10120002 Sanitation Districts of L 9255651 South Carolina Chemistry 10120001 Tennessee TN 02934 Texas NELAP T1047042352220 Utah NELAP SC00012202136 Vermont VT87156 Virginia NELAP 460202 Washington C780 Page 21 of 24 SDG: 592267

Radiochemistry Technical Case Narrative Zion Solutions SDG #: 592267 Product: Dry Weight Preparation Method: Dry Soil Prep Preparation Procedure: GL-RAD-A-021 REV# 24 Preparation Batch: 2313896 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 592267001 L1-12201C-QIGS-201-SS The samples in this SDG were analyzed on an "as received" basis. Data Summary: All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions. Miscellaneous Information Additional Comments This sample is a re-log and data was transferred from batch# 2293364 Product: Gammaspec, Gamma, Solid (Requested List) Analytical Method: DOE HASL 300, 4.5.2.3/Ga-01-R Analytical Procedure: GL-RAD-A-013 REV# 27 Analytical Batch: 2314318 Preparation Method: Dry Soil Prep Preparation Procedure: GL-RAD-A-021 REV# 24 Preparation Batch: 2313896 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 592267001 L1-12201C-QIGS-201-SS 1205186655 Method Blank (MB) 1205186656 592267001(L1-12201C-QIGS-201-SS) Sample Duplicate (DUP) 1205186657 Laboratory Control Sample (LCS) The samples in this SDG were analyzed on a "dry weight" basis. Page 22 of 24 SDG: 592267

Data Summary: There are no exceptions, anomalies or deviations from the specified methods. All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable. Qualifier Information Qualifier Reason Analyte Sample Client Sample Results are considered a false UI Actinium-228 592267001 L1-12201C-QIGS-201-SS positive due to low abundance. Bismuth-211 1205186656 L1-12201C-QIGS-201-SS(592267001DUP) Cesium-134 1205186656 L1-12201C-QIGS-201-SS(592267001DUP) Lead-212 1205186655 MB for batch 2314318 Product: GFPC, Sr90, Solid Analytical Method: EPA 905.0 Modified/DOE RP501 Rev. 1 Modified Analytical Procedure: GL-RAD-A-004 REV# 22 Analytical Batch: 2313911 Preparation Method: Dry Soil Prep Preparation Procedure: GL-RAD-A-021 REV# 24 Preparation Batch: 2313896 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 592267001 L1-12201C-QIGS-201-SS 1205185814 Method Blank (MB) 1205185815 592267001(L1-12201C-QIGS-201-SS) Sample Duplicate (DUP) 1205185816 Laboratory Control Sample (LCS) The samples in this SDG were analyzed on a "dry weight" basis. Data Summary: All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable, with the following exceptions. Preparation Information Page 23 of 24 SDG: 592267

Homogenous Matrix Samples were non-homogenous matrix. sand Product: Liquid Scint Ni63, Solid Analytical Method: DOE RESL Ni-1, Modified Analytical Procedure: GL-RAD-A-022 REV# 19 Analytical Batch: 2313975 Preparation Method: Dry Soil Prep Preparation Procedure: GL-RAD-A-021 REV# 24 Preparation Batch: 2313896 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 592267001 L1-12201C-QIGS-201-SS 1205185956 Method Blank (MB) 1205185957 592267001(L1-12201C-QIGS-201-SS) Sample Duplicate (DUP) 1205185958 Laboratory Control Sample (LCS) The samples in this SDG were analyzed on a "dry weight" basis. Data Summary: There are no exceptions, anomalies or deviations from the specified methods. All sample data provided in this report met the acceptance criteria specified in the analytical methods and procedures for initial calibration, continuing calibration, instrument controls and process controls where applicable. Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative. Page 24 of 24 SDG: 592267}}