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Restoration Project - Final Status Survey Release Record Waste Waster Treatment Facility (Wwtf) Survey Unit 12102, Rev. 1
	ML22279A987
Person / Time
Site:	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: ML22279A987 (158)
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FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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........................................................................................ 20

7. SURVEY RESULTS............................................................................................................ 21

8. QUALITY CONTROL ....................................................................................................... 28

9. INVESTIGATIONS AND RESULTS ............................................................................... 28

10. REMEDIATION AND RESULTS ..................................................................................... 30

11. CHANGES FROM THE SURVEY PLAN ....................................................................... 30

12. DATA QUALITY ASSESSMENT (DQA) ........................................................................ 30

13. ANOMALIES....................................................................................................................... 31

14. CONCLUSION .................................................................................................................... 31

15. REFERENCES .................................................................................................................... 31

16. ATTACHMENTS ................................................................................................................ 32 ATTACHMENT 1 - FIGURE AND MAPS ....................................................................... 33 ATTACHMENT 2 - SCAN DATA ..................................................................................... 37 ATTACHMENT 3 - CONSULTATION TRIGGERS FOR RESIDENTIAL AND COMMERCIAL/INDUSTRIAL SOIL CONTAMINATION ....... 41 ATTACHMENT 4 - SIGN TEST........................................................................................ 43 ATTACHMENT 5 - QC SAMPLE ASSESSMENT .......................................................... 45 ATTACHMENT 6 - GRAPHICAL PRESENTATIONS ................................................. 47 ATTACHMENT 7 - GEL LABS CERTIFICATE OF ANALYSIS REPORTS ............. 54

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FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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 ..................................................................................................... 19 Table 10 - Instruments and Detectors ..................................................................................................... 21 Table 11 - Synopsis of Scan Results....................................................................................................... 21 Table 12 - Summary of Gamma Spectroscopy Results for Surface Soil Samples Comprising the Statistical Sample Population ................................................................................................................. 24 Table 13 - Summary of Gamma Spectroscopy Results for Subsurface Soil Samples............................ 25 Table 14 - Surrogate Ratio Analysis Results ......................................................................................... 25 Table 15 - Summary of Gamma Spectroscopy Results for QC Soil Samples ........................................ 26 Table 16 - Sum-of-Fractions for Individual Surface Soil Samples, when compared to the OpDCGLs (Systematic) ............................................................................................................................................ 27 Table 17 - Sum-of-Fractions for Individual Subsurface Soil Samples, when compared to the OpDCGLs

................................................................................................................................................................ 28 Table 18 - Sum-of-Fractions for Individual QC Soil Samples, when compared to the OpDCGLs ....... 28 Table 19 - Basic Statistical Properties of Systematic Sample Population .............................................. 28 Table 20 - Summary of Gamma Spectroscopy Results for Investigation Surface and Subsurface Soil Samples ................................................................................................................................................... 29 Table 21 - Sum-of-Fractions for Investigation Surface and Subsurface Soil Samples, when compared to the OpDCGLs ..................................................................................................................................... 30 LIST OF FIGURES Figure 1 - Class 1 and Class 2 Open Land Survey Units from Figure 2-7 of the LTP ............................ 8

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FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102

1. EXECUTIVE

SUMMARY

Final Status Survey (FSS) was performed on this survey unit in August of 2021. 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 were to 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 12102, Waste Water Treatment Facility (WWTF), 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). An FSS package (L1-12102A-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. Eighteen (18) 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. Investigations were performed into the elevated readings. A detailed description of the investigations is included in Section 9. The analytical results for the systematic soil samples taken in Survey Unit 12102 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 0.058. The mean OpSOF for the systematic samples was 0.020. The mean SOF (BcSOF), when the analytical results were compared to the Base Case DCGLs (BcDCGL), was 0.005, which results in a dose assigned to the survey unit of 0.125 mrem/yr. Therefore, the null hypothesis is rejected and survey unit 12102 is acceptable for unrestricted release.

2. SURVEY UNIT DESCRIPTION Survey Unit 12102, the Waste Water Treatment Facility (WWTF), is a Class 1 open land survey unit. It is bounded on the west by survey unit 12201E, the south by 12103, the east by 10223, and the north by 12101.

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FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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 12102 was classified in accordance with ZionSolutions procedure ZS-LT-300-001-002, Survey Unit Classification (Reference 5).

The area encompassing this survey unit was included in two survey units listed in the Historical Site Assessment (HSA): 10101, described as the WWTF Area and 10112, described as the U2 PWST/SST Area. These survey units are identified in Figure 3 of the HSA. Subsequently, in the Zion Station Restoration Project License Termination Plan (LTP), the area of 10112 and 10101 that was inside the Security Area fence line was split into 3 survey units, 12101, 12102, and 12103. The 12102 unit included the area of 10112 north of the PWST and SST, and the south section of 10101, which included the WWTF. The 12102 survey unit was described as the WWTF Facility in Table 2-4 of the LTP. The location of these survey units are represented in Figure 2-7 of the LTP. Figure 1 - Class 1 and Class 2 Open Land Survey Units from Figure 2-7 of the LTP The initial Final Status Survey of 12102 was completed in March 2019 as a Class 1 survey unit. This classification remains applicable to this survey design. [8]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 A Radiological Engineer (RE)/Characterization/Licenses Termination (C/LT) Supervisor performed a visual inspection and walk-down of the survey unit on 06/16/2022 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 12102 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 12102 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 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 [9]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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 modeling parameters that were used to calculate the site-specific DCGLs for soils (referred to as BcDCGL in this Release Record). [10]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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 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 [11]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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 checks were required prior to issuance and after the instrument had been used. Control and [12]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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 12102. 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 12102, 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. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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. The computer program Visual Sample Plan (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. VSP generated a map with 18 sample points. Systematic sample numbers 1 to 17 were used in the previous FSS, therefore the systematic samples for this FSS were 201 to 218. 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: 2024

To calculate the area bounded by the systematic samples: = = = 112.4 2 18
From the LTP, Table 5-16, the Area Factors for the next larger area, 100 m2 area were used:

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

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 = 8.71 / 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, L1-12102A-FQGS-205-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 L1-12102A-FSGS-210-SB and L1-12102A-FSGS-211-SB were [16]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 selected for this survey unit. The locations of the eighteen (18) systematic samples are listed in Table 8. Note, samples were numbered starting with 201. This is because systematic samples were collected in a 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) L1-12102A-FSGS-201-SS 641825.42 343797.69 L1-12102A-FSGS-202-SS 641825.42 343809.42 L1-12102A-FSGS-203-SS 641835.58 343756.65 L1-12102A-FSGS-204-SS 641835.58 343768.37 L1-12102A-FSGS-205-SS 641835.58 343780.10 L1-12102A-FSGS-206-SS 641835.58 343791.83 L1-12102A-FSGS-207-SS 641835.58 343803.55 L1-12102A-FSGS-208-SS 641835.58 343815.28 L1-12102A-FSGS-209-SS 641845.73 343750.78 L1-12102A-FSGS-210-SS 641845.73 343762.51 L1-12102A-FSGS-211-SS 641845.73 343774.24 L1-12102A-FSGS-212-SS 641845.73 343785.96 L1-12102A-FSGS-213-SS 641845.73 343797.69 L1-12102A-FSGS-214-SS 641845.73 343809.42 L1-12102A-FSGS-215-SS 641855.89 343756.65 L1-12102A-FSGS-216-SS 641855.89 343768.37 L1-12102A-FSGS-217-SS 641855.89 343780.10 L1-12102A-FSGS-218-SS 641855.89 343791.83 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 [17]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 an individual soil sample exceed an OpSOF of 0.1, then the sample(s) will be analyzed for HTD ROC. Two (2) investigation soil samples exceeded an OpSOF of 0.1. An additional investigation soil sample was also 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:

1. L1-12102A-FIGS-201-SB

2. L1-12102A-FIGS-202-SS

3. L1-12002A-FIGS-206-SS Table 9 provides a synopsis of the survey design for survey unit 12102.

[18]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 Table 9 - Synopsis of Survey Design FEATURE DESIGN CRITERIA BASIS Survey Unit Area 2,024 m2 GPS measurements of area

                                                               *   = 0.30

UBGR = SOF of 1
LBGR = SOF of 0.5 Number of Surface 18 (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 11.4 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 [19]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102

6. SURVEY IMPLEMENTATION Survey instructions for this FSS were incorporated into and performed in accordance with FSS Sample Plan L1-12102-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 12102, 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 12102 during the surface scans. Numerous scan alarms were recorded during the gamma walkover survey. The areas showing activity above the Action Level were marked. 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 L1-12102-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 20, 2022, and concluding on July 11, 2022. The eighteen (18) 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 check sources ranges established for normal background and detector source response to ensure that the detector was working properly. [20]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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 11/04/2022 Ludlum 2350-1/Ludlum 44-10 126209/PR192598 11/04/2022 Ludlum 2350-1/Ludlum 44-10 304718/PR363311 6/07/2023 Ludlum 2350-1/Ludlum 44-10 216188/RN25063 11/04/2022 In accordance with the survey design, eighteen (18) 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. Eight (8) Investigation soil samples were collected at locations identified as elevated activity on the surface scans: six (6) 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. Sixty-nine (69) 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 Action # of Scan Logged Level(1) Scan Investigation Samples Row Reading Alarms (cpm) (cpm) 1 6138 6218 0 2 5996 6218 0 3 6148 6218 0 4 6135 6218 0 5 7941 6218 1 6 6166 6218 0 7 7898 6218 1 8 8533 6218 2 L1-12102A-FIGS-206-SS [21]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 Table 11 (continued) - Synopsis of Scan Results Highest Action Scan Logged # of Scan Level(1) Investigation Samples Row Reading Alarms (cpm) (cpm) 9 8244 6218 1 10 8146 6218 2 11 8133 6218 3 12 x Note 2 13 8556 6240 14 8952 6240 15 9713 6240 16 9281 6240 17 9944 6281 18 x 6281 19 x 6281 20 9323 6281 21 x 6281 22 x 6281 23 9731 6281 24 x 6250 25 9826 6250 26 x 6250 27 10363 6250 28 x 6250 29 x 6250 30 x 6250 31 8505 6281 32 x 6281 33 x 6281 34 9784 6281 35 x 6281 36 x 6281 37 x 6281 38 9319 6080 39 10213 6080 L1-12102A-FIGS-204-SS 40 x 6080 41 x 6080 42 x 6080 43 x 6080 [22]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 Table 11 (continued) - Synopsis of Scan Results Scan Highest Action # of Scan Logged Level(1) Investigation Samples Row Alarms (cpm) Reading (cpm) 44 x 6080 Note 2 45 x 6080 46 9483 6080 47 x 6080 48 x 6080 49 8770 6080 50 9545 6282 51 6282 52 9859 6282 53 9757 6282 54 9961 6282 L1-12102A-FIGS-203-SS 55 x 6282 56 x 6282 57 x 6282 58 6026 6282 0 59 5257 5406 0 60 6132 6138 0 61 6100 6138 0 62 6103 6138 0 L1-12102A-FIGS-201-SS, L1-12102A-FIGS-202-SS 63 10436 6138 1 particle found/captured 64 6074 6138 0 65 5737 6138 0 66 5542 6138 0 67 5843 5891 0 68 5654 5891 0 69 5877 5891 0 The action level is based on the measurement Minimum Detectable Count Rate (MDCR) plus Note 1: background in accordance with the FSS plan The entire area of rows 12 through 57 was above the ASP. Only the high readings throughout this area Note 2: were recorded. Eighteen (18) systematic surface soil samples taken for non-parametric statistical testing, six (6) investigation 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 19. The gamma spectroscopy results revealed two (2) samples with activity levels above MDA for Cs-137, two (2) samples with an activity level above MDA for Co-60 and no samples with activity levels [23]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 above MDA for Cs-134. 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 8. 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) L1-12102A-FSGS-201-SS 2.04E-02 6.04E-02 0.00E+00 3.68E+00 0.00E+00 L1-12102A-FSGS-202-SS 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 L1-12102A-FSGS-203-SS 1.11E-02 0.00E+00 0.00E+00 2.00E+00 0.00E+00 L1-12102A-FSGS-204-SS 1.76E-02 3.75E-02 3.67E-03 3.18E+00 7.34E-06 L1-12102A-FSGS-205-SS 1.85E-02 3.71E-02 3.48E-03 3.34E+00 6.96E-06 L1-12102A-FSGS-206-SS 1.11E-02 1.09E-04 1.97E-02 2.00E+00 3.94E-05 L1-12102A-FSGS-207-SS 0.00E+00 2.21E-02 5.06E-03 0.00E+00 1.01E-05 L1-12102A-FSGS-208-SS 2.04E-03 0.00E+00 1.13E-01 3.68E-01 2.26E-04 L1-12102A-FSGS-209-SS 1.58E-03 3.68E-03 9.34E-03 2.85E-01 1.87E-05 L1-12102A-FSGS-210-SS 2.37E-02 2.74E-03 0.00E+00 4.28E+00 0.00E+00 L1-12102A-FSGS-211-SS 2.18E-02 5.63E-03 0.00E+00 3.93E+00 0.00E+00 L1-12102A-FSGS-212-SS 7.06E-03 2.44E-03 0.00E+00 1.27E+00 0.00E+00 L1-12102A-FSGS-213-SS 0.00E+00 1.53E-02 0.00E+00 0.00E+00 0.00E+00 L1-12102A-FSGS-214-SS 5.41E-03 0.00E+00 1.01E-03 9.76E-01 2.02E-06 L1-12102A-FSGS-215-SS 5.26E-03 1.47E-02 8.09E-04 9.49E-01 1.62E-06 L1-12102A-FSGS-216-SS 0.00E+00 1.05E-02 1.88E-02 0.00E+00 3.76E-05 L1-12102A-FSGS-217-SS 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 L1-12102A-FSGS-218-SS 4.28E-03 2.15E-03 0.00E+00 7.72E-01 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. [24]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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) L1-12102A-FSGS-210-SB 0.00E+00 1.70E-02 0.00E+00 0.00E+00 0.00E+00 L1-12102A-FSGS-211-SB 0.00E+00 6.34E-02 1.13E-02 0.00E+00 2.26E-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) investigation samples selected for HTD ROC analysis. Two (2) samples were selected for having an OpSOF > 0.1. The following samples were selected:

1. L1-12102A-FIGS-201-SB

2. L1-12102A-FIGS-202-SS

3. L1-12102A-FIGS-206-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 and Co-60 were positively detected in two 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 # L1-12102A-FIGS-201-SB Result Uncertainty MDC ROC >MDC (pCi/g) (pCi/g) (pCi/g) Co-60 8.69E-01 1.12E-01 4.78E-02 Yes Cs-134 9.42E-03 4.19E-02 7.91E-02 No Cs-137 6.73E-02 4.71E-02 5.81E-02 Yes Ni-63 2.99E+00 4.71E+00 7.98E+00 No Sr-90 -3.74E-03 2.07E-02 3.97E-02 No Sample # L1-12102A-FIGS-202-SS Result Uncertainty MDC ROC >MDC (pCi/g) (pCi/g) (pCi/g) Co-60 1.10E-01 4.15E-02 3.55E-02 Yes Cs-134 -1.56E-03 1.91E-02 3.63E-02 No Cs-137 4.62E-02 3.36E-02 3.51E-02 Yes Ni-63 1.42E+00 5.23E+00 8.98E+00 No Sr-90 1.56E-02 2.10E-02 3.57E-02 No [25]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 Table 14 (continued) Surrogate Ratio Analysis Results Sample # L1-12102A-FIGS-206-SS Result Uncertainty MDC ROC >MDC (pCi/g) (pCi/g) (pCi/g) Co-60 -1.02E-02 1.97E-02 3.64E-02 No Cs-134 3.15E-02 3.97E-02 3.15E-02 No Cs-137 2.31E-02 2.48E-02 2.31E-02 No Ni-63 -4.36E-02 5.00E+00 8.68E+00 No Sr-90 -9.85E-03 1.74E-02 3.44E-02 No The implementation of survey specific QC measures included the collection of one (1) systematic sample (L1-12102A-FQGS-205-SS) and one (1) biased sample (L1-12102A-QIGS-205-SS) for split sample analysis. GEL Laboratories analyzed the designated QC samples. Gamma spectroscopy results (summarized in Table 15) indicate that the concentration for the ROC 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) L1-12102A-FQGS-205-SS 2.32E-02 5.86E-03 0.00E+00 4.19E+00 0.00E+00 L1-12102A-QIGS-205-SS 0.00E+00 3.71E-02 1.78E-02 0.00E+00 3.56E-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 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. Areas selected for the QC scan consisted of rows that identified scan readings above the Action Level for the survey. QC scan surveys were documented on survey 22-0142. The area covered was 120 m2, 5.9% of the survey unit. The results of the QC scan were in agreement with the initial scans. 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 [26]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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 12102 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 L1-12102A-FSGS-201-SS 1.87E-02 3.49E-02 0.00E+00 4.03E-03 0.00E+00 0.058 L1-12102A-FSGS-202-SS 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.000 L1-12102A-FSGS-203-SS 1.02E-02 0.00E+00 0.00E+00 2.19E-03 0.00E+00 0.012 L1-12102A-FSGS-204-SS 1.61E-02 2.16E-02 1.01E-03 3.47E-03 2.37E-06 0.042 L1-12102A-FSGS-205-SS 1.70E-02 2.14E-02 9.59E-04 3.65E-03 2.25E-06 0.043 L1-12102A-FSGS-206-SS 1.02E-02 6.29E-05 5.43E-03 2.19E-03 1.27E-05 0.018 L1-12102A-FSGS-207-SS 0.00E+00 1.28E-02 1.39E-03 0.00E+00 3.27E-06 0.014 L1-12102A-FSGS-208-SS 1.87E-03 0.00E+00 3.11E-02 4.03E-04 7.30E-05 0.033 L1-12102A-FSGS-209-SS 1.45E-03 2.12E-03 2.57E-03 3.12E-04 6.04E-06 0.006 L1-12102A-FSGS-210-SS 2.17E-02 1.58E-03 0.00E+00 4.68E-03 0.00E+00 0.028 L1-12102A-FSGS-211-SS 2.00E-02 3.25E-03 0.00E+00 4.30E-03 0.00E+00 0.028 L1-12102A-FSGS-212-SS 6.47E-03 1.41E-03 0.00E+00 1.39E-03 0.00E+00 0.009 L1-12102A-FSGS-213-SS 0.00E+00 8.83E-03 0.00E+00 0.00E+00 0.00E+00 0.009 L1-12102A-FSGS-214-SS 4.96E-03 0.00E+00 2.78E-04 1.07E-03 6.53E-07 0.006 L1-12102A-FSGS-215-SS 4.82E-03 8.48E-03 2.23E-04 1.04E-03 5.23E-07 0.015 L1-12102A-FSGS-216-SS 0.00E+00 6.06E-03 5.18E-03 0.00E+00 1.21E-05 0.011 L1-12102A-FSGS-217-SS 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.000 L1-12102A-FSGS-218-SS 3.92E-03 1.24E-03 0.00E+00 8.45E-04 0.00E+00 0.006 Systematic Measurements Number of Systematic Measurements = 18

                                                  # of Systematic Measurements with OpSOF > 1 =    0
                      # of Systematic Measurements with OpSOF > 0.1 (HTD Assessment) =             0 Max Individual Systematic Measurement OpSOF =  0.0576 Mean Systematic Measurement OpSOF =   0.0196

[27]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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 L1-12102A-FSGS-210-SB 0.00E+00 1.50E-02 0.00E+00 0.00E+00 0.00E+00 0.015 L1-12102A-FSGS-211-SB 0.00E+00 3.66E-02 3.11E-03 0.00E+00 7.30E-06 0.040 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 L1-12102A-FQGS-205-SS 2.63E-02 5.15E-03 0.00E+00 2.14E-02 0.00E+00 0.053 L1-12102A-QIGS-205-SS 0.00E+00 2.14E-02 4.90E-03 0.00E+00 1.15E-05 0.026 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 8.56E-03 5.41E-03 2.37E-02 0.00E+00 0.009 4.26 2.01E-03 5.02E-02 Cs-134 1.25E-02 3.68E-03 6.04E-02 0.00E+00 0.017 6.77 1.84E-03 4.61E-02 Cs-137 1.03E-02 8.09E-04 1.13E-01 0.00E+00 0.027 14.18 7.25E-04 1.81E-02 Ni-63 1.54E+00 9.76E-01 4.28E+00 0.00E+00 1.575 3572.1 4.33E-04 1.08E-02 Sr-90 2.06E-05 1.62E-06 2.26E-04 0.00E+00 0.000 12.09 1.70E-06 4.25E-05 The mean BcSOF for survey unit 12102 is 0.005 which equates to a dose of 0.125 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, L1-12102A-FQGS-205-SS and L1-12102A-QIGS-205-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 An investigation was performed at the location of a scan alarm in row #63. A DRP was suspected due to the reading appearing to be a point source of activity. A field gamma spec reading taken with the Inspector 1000 identified Co-60. A DRP was identified and captured. The DRP read 304k cpm. Two (2) soil samples, L1-12102A-FIGS-201-SB and L1-12102A-FIGS-202-SS also showed positive activity for Co-60, with Cs-134 and Cs-137 < MDA. It was suspected that this

[28]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 activity was also a small DRP in the sample. Additional soil was collected at the sample point, and at four (4) locations located 0.5m to the north, south, east, and west of the initial sample. Surface and subsurface samples were collected at each point, with the soil from each sample being scanned in a 1 layer with the 2350-1/44-10. No additional DRPs were identified. In accordance with the protocols for DRP survey, the samples were not submitted for isotopic analysis. The center of the survey unit, from rows 12 to 57, was uniformly above the ASP. The north and south section of rows 5 to 11 also had areas above the ASP. The FSS Technicians were directed to perform a 100% scan of these rows, collecting latch values at the points of highest activity. Thirty-one (31) latch readings were recorded, with readings from 7898 cpm to 10363 cpm. Field gamma spec readings were taken at each latched location using the Inspector 1000. No plant related nuclides were identified. Eleven (11) of the systematic samples were located within this area. An additional four (4) investigation samples were taken in this area (L1-12102A-FIGS-203-SS through L1-12102A-FIGS-206-SS). The results of the fifteen (15) samples taken in this area showed one (1) sample with positive activity for Cs-137, with an OpSOF of 0.04. The results of the other samples were < MDA for the ROC. 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) L1-12102A-FIGS-201-SS 1.67E-02 0.00E+00 1.54E-02 3.01E+00 3.08E-05 L1-12102A-FIGS-201-SB 8.54E-01 1.61E-03 1.43E-02 1.54E+02 2.86E-05 L1-12102A-FIGS-202-SS 1.32E-01 4.23E-02 2.68E-02 2.38E+01 5.36E-05 L1-12102A-FIGS-203-SS 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 L1-12102A-FIGS-204-SS 1.70E-02 1.47E-02 9.79E-03 3.07E+00 1.96E-05 L1-12102A-FIGS-205-SS 2.27E-02 4.88E-02 2.98E-02 4.10E+00 5.96E-05 L1-12102A-FIGS-206-SS 5.92E-03 3.81E-02 4.04E-02 1.07E+00 8.08E-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. [29]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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 L1-12102A-FIGS-201-SS 1.53E-02 0.00E+00 4.24E-03 3.30E-03 9.95E-06 0.023 L1-12102A-FIGS-201-SB 9.69E-01 1.42E-03 7.21E-03 7.89E-01 6.73E-05 1.767 L1-12102A-FIGS-202-SS 1.21E-01 2.44E-02 7.38E-03 2.60E-02 1.73E-05 0.179 L1-12102A-FIGS-203-SS 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.000 L1-12102A-FIGS-204-SS 1.56E-02 8.48E-03 2.70E-03 3.35E-03 6.33E-06 0.030 L1-12102A-FIGS-205-SS 2.08E-02 2.82E-02 8.21E-03 4.48E-03 1.93E-05 0.062 L1-12102A-FIGS-206-SS 5.43E-03 2.20E-02 1.11E-02 1.17E-03 2.61E-05 0.040

10. REMEDIATION AND RESULTS A DRP was identified and removed in row #63. The results of investigation samples taken at this location also showed positive Co-60 activity, suspected to also be from a DRP. Additional investigations showed no additional DRP activity in the soil.

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, with the exception of L1-12102A-FIGS-201-SB, were less than a SOF of one when compared to the Operational DCGLs. It was suspected that this activity was a DRP contained in the sample. Additional investigation surveys determined that there was no additional DRP activity at that location. 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 demonstrates that the survey unit passes the unrestricted release criteria, thus, the null hypothesis is rejected. The Sign Test is included in Attachment 4. [30]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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 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 12102 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.

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, 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 0.005, which results in a dose contribution from soil in survey unit 12102 of 0.125 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 12102 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)

[31]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102

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

6. Zion Station Historical Site Assessment (HSA)

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

[32]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 ATTACHMENT 1 - FIGURE AND MAPS [33]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 Survey Unit 12102 Final Status Survey Boundaries and Systematic Sample Points [34]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 Survey Unit 12102 Final Status Survey Scan Rows [35]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 Survey Unit 12102 Composite Scan Map (with elevated reading latch locations and investigation sample locations) [36]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 ATTACHMENT 2 - SCAN DATA [37]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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 12102 GS001 6/20/2022 8:31 6138 5430 6218 No 44-10 PR157372 117578 12102 GS001 6/20/2022 8:36 6044 5430 6218 No 44-10 PR157372 117578 12102 GS001 6/20/2022 8:39 5674 5430 6218 No 44-10 PR157372 117578 12102 GS002 6/20/2022 8:43 5502 5430 6218 No 44-10 PR157372 117578 12102 GS002 6/20/2022 8:47 5996 5430 6218 No 44-10 PR157372 117578 12102 GS002 6/20/2022 8:52 5882 5430 6218 No 44-10 PR157372 117578 12102 GS003 6/20/2022 8:57 6115 5430 6218 No 44-10 PR157372 117578 12102 GS003 6/20/2022 9:02 6076 5430 6218 No 44-10 PR157372 117578 12102 GS003 6/20/2022 9:06 6148 5430 6218 No 44-10 PR157372 117578 12102 GS004 6/20/2022 9:11 6018 5430 6218 No 44-10 PR157372 117578 12102 GS004 6/20/2022 9:18 5979 5430 6218 No 44-10 PR157372 117578 12102 GS004 6/20/2022 9:25 6135 5430 6218 No 44-10 PR157372 117578 12102 GS005 6/20/2022 9:27 7941 5430 6218 Yes 44-10 PR157372 117578 12102 GS005 6/20/2022 9:42 5753 5430 6218 No 44-10 PR157372 117578 12102 GS005 6/20/2022 9:47 5779 5430 6218 No 44-10 PR157372 117578 12102 GS005 6/20/2022 9:52 5965 5430 6218 No 44-10 PR157372 117578 12102 GS006 6/20/2022 9:56 5837 5430 6218 No 44-10 PR157372 117578 12102 GS006 6/20/2022 10:00 6166 5430 6218 No 44-10 PR157372 117578 12102 GS006 6/20/2022 10:04 6036 5430 6218 No 44-10 PR157372 117578 12102 GS007 6/20/2022 10:08 5706 5430 6218 No 44-10 PR157372 117578 12102 GS007 6/20/2022 10:12 5996 5430 6218 No 44-10 PR157372 117578 12102 GS007 6/20/2022 10:19 7898 5430 6218 Yes 44-10 PR157372 117578 12102 GS008 6/20/2022 10:24 8318 5430 6218 Yes 44-10 PR157372 117578 12102 GS008 6/20/2022 10:29 6174 5430 6218 No 44-10 PR157372 117578 12102 GS008 6/20/2022 10:35 8533 5430 6218 Yes 44-10 PR157372 117578 12102 GS009 6/20/2022 13:26 5642 5430 6218 No 44-10 PR157372 117578 12102 GS009 6/20/2022 13:31 6191 5430 6218 No 44-10 PR157372 117578 12102 GS009 6/20/2022 13:39 8244 5430 6218 Yes 44-10 PR157372 117578 12102 GS010 6/20/2022 13:43 8146 5430 6218 Yes 44-10 PR157372 117578 12102 GS010 6/20/2022 13:50 6198 5430 6218 No 44-10 PR157372 117578 12102 GS010 6/20/2022 13:56 7501 5430 6218 Yes 44-10 PR157372 117578 12102 GS011 6/20/2022 14:00 7257 5430 6218 Yes 44-10 PR157372 117578 12102 GS011 6/20/2022 14:08 8133 5430 6218 Yes 44-10 PR157372 117578 12102 GS011 6/20/2022 14:16 7577 5430 6218 Yes 44-10 PR192598 126209 12102 GS013 6/23/2022 10:33 8556 5450 6240 Yes 44-10 PR192598 126209 12102 GS014 6/23/2022 13:21 8952 5450 6240 Yes [38]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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 PR192598 126209 12102 GS015 6/23/2022 13:43 9713 5450 6240 Yes 44-10 PR192598 126209 12102 GS016 6/23/2022 14:16 9281 5450 6240 Yes Scan of rows 13 to 16. All of the area of these rows is above the ASP. The high readings in the area were latched. 44-10 PR192598 126209 12102 GS017 6/24/2022 9:16 9632 5489 6281 Yes 44-10 PR192598 126209 12102 GS017 6/24/2022 9:30 9944 5489 6281 Yes 44-10 PR192598 126209 12102 GS020 6/24/2022 10:28 9323 5489 6281 Yes 44-10 PR192598 126209 12102 GS023 6/24/2022 13:25 9731 5489 6281 Yes Scan of rows 17 to 23. All of the area of these rows is above the ASP. The high readings in the area were latched. 44-10 PR192598 126209 12102 GS025 6/25/2022 8:08 9826 5460 6250 Yes 44-10 PR192598 126209 12102 GS027 6/25/2022 8:40 10363 5460 6250 Yes Scan of rows 24 to 30. All of the area of these rows is above the ASP. The high readings in the area were latched. 44-10 PR192598 126209 12102 GS031 6/27/2022 13:41 8505 5489 6281 Yes 44-10 PR192598 126209 12102 GS034 6/27/2022 14:16 8835 5489 6281 Yes 44-10 PR192598 126209 12102 GS034 6/27/2022 14:21 9784 5489 6281 Yes Scan of rows 31 to 37. All of the area of these rows is above the ASP. The high readings in the area were latched. 44-10 PR192598 126209 12102 GS038 6/29/2022 8:50 9319 5302 6080 Yes 44-10 PR192598 126209 12102 GS039 6/29/2022 9:06 10213 5302 6080 Yes 44-10 PR192598 126209 12102 GS046 6/29/2022 13:50 9483 5302 6080 Yes 44-10 PR192598 126209 12102 GS049 6/29/2022 14:28 8770 5302 6080 Yes Scan of rows 38 to 49. All of the area of these rows is above the ASP. The high readings in the area were latched. 44-10 PR363311 304718 12102 GS050 6/29/2022 8:55 9545 5490 6282 Yes 44-10 PR363311 304718 12102 GS052 6/29/2022 9:37 9859 5490 6282 Yes 44-10 PR363311 304718 12102 GS053 6/29/2022 10:33 9757 5490 6282 Yes 44-10 PR363311 304718 12102 GS054 6/29/2022 13:11 9961 5490 6282 Yes All of the area of rows 50 to 57 is above the ASP. The high readings in the area were latched. 44-10 PR363311 304718 12102 GS058 6/29/2022 14:26 5746 5490 6282 No 44-10 PR363311 304718 12102 GS058 6/29/2022 14:30 6026 5490 6282 No 44-10 PR363311 304718 12102 GS058 6/29/2022 14:35 5277 5490 6282 No [39]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 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 PR363311 304718 12102 GS059 6/29/2022 15:56 5081 4675 5406 No 44-10 PR363311 304718 12102 GS059 6/29/2022 16:00 5257 4675 5406 No 44-10 PR363311 304718 12102 GS059 6/29/2022 16:05 5116 4675 5406 No 44-10 RN25063 216188 12102 GS060 6/30/2022 8:50 5975 5356 6138 No 44-10 RN25063 216188 12102 GS060 6/30/2022 8:57 6132 5356 6138 No 44-10 RN25063 216188 12102 GS060 6/30/2022 9:06 5858 5356 6138 No 44-10 RN25063 216188 12102 GS061 6/30/2022 9:17 6100 5356 6138 No 44-10 RN25063 216188 12102 GS061 6/30/2022 9:27 5843 5356 6138 No 44-10 RN25063 216188 12102 GS061 6/30/2022 9:33 6074 5356 6138 No 44-10 RN25063 216188 12102 GS062 6/30/2022 9:40 6034 5356 6138 No 44-10 RN25063 216188 12102 GS062 6/30/2022 9:46 5939 5356 6138 No 44-10 RN25063 216188 12102 GS062 6/30/2022 9:52 6103 5356 6138 No 44-10 RN25063 216188 12102 GS063 6/30/2022 9:58 5897 5356 6138 No 44-10 RN25063 216188 12102 GS063 6/30/2022 10:03 5556 5356 6138 No 44-10 RN25063 216188 12102 GS063 6/30/2022 10:20 10436 5356 6138 Yes 44-10 RN25063 216188 12102 GS064 6/30/2022 14:51 6074 5356 6138 No 44-10 RN25063 216188 12102 GS064 6/30/2022 14:59 5844 5356 6138 No 44-10 RN25063 216188 12102 GS064 6/30/2022 15:06 5819 5356 6138 No 44-10 RN25063 216188 12102 GS065 6/30/2022 15:13 5376 5356 6138 No 44-10 RN25063 216188 12102 GS065 6/30/2022 15:18 5464 5356 6138 No 44-10 RN25063 216188 12102 GS065 6/30/2022 15:23 5737 5356 6138 No 44-10 RN25063 216188 12102 GS066 6/30/2022 15:53 5542 5356 6138 No 44-10 RN25063 216188 12102 GS066 6/30/2022 15:59 5484 5356 6138 No 44-10 RN25063 216188 12102 GS066 6/30/2022 16:04 5410 5356 6138 No 44-10 RN25063 216188 12102 GS067 7/1/2022 8:21 5381 5125 5891 No 44-10 RN25063 216188 12102 GS067 7/1/2022 8:30 5833 5125 5891 No 44-10 RN25063 216188 12102 GS067 7/1/2022 8:43 5843 5125 5891 No 44-10 RN25063 216188 12102 GS068 7/1/2022 8:53 5392 5125 5891 No 44-10 RN25063 216188 12102 GS068 7/1/2022 9:02 5654 5125 5891 No 44-10 RN25063 216188 12102 GS068 7/1/2022 9:09 5559 5125 5891 No 44-10 RN25063 216188 12102 GS069 7/1/2022 9:16 5877 5125 5891 No 44-10 RN25063 216188 12102 GS069 7/1/2022 9:23 5714 5125 5891 No 44-10 RN25063 216188 12102 GS069 7/1/2022 9:28 5686 5125 5891 No [40]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 ATTACHMENT 3 - CONSULTATION TRIGGERS FOR RESIDENTIAL AND COMMERCIAL/INDUSTRIAL SOIL CONTAMINATION [41]

FSS RELEASE RECORD - REV. 1 ~ WASTE WATER TREATMENT FACILITY (WWTF) = ZIONSOLUTIONSuc= M~SIIMioM~ SURVEY UNIT 12102 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 [42]

FSS RELEASE RECORD - REV. 1 ~ WASTE WATER TREATMENT FACILITY (WWTF) = ZIONSOLUTIONS;;z= An E.-gySolutions Company SURVEY UNIT 12102 ATTACHMENT 4 - SIGN TEST [43]

PSS RELEASE RECORD - REV. 1 ~ WASTE WATER TREATMENT FACILITY (WWTF) =ZIO S OLUTIONS,--;-= Mt. s.-,,,,.~ SURVEY UNIT 12102 Survey Al'ea: 'O. 1 000 De. cl'iption: Secmity Restricted Area Ground Sm*vey l.7nit: No . 12 10 A De *cl'iption: Wa te Water Treatment Facility (WWTF) Clas ification: 1 T. 1>e I (a) Error: 0.0_ umber of Sample : 18 Fraction of the Release Criterion ActiYity or Weighted

      #                       Radionuclides of Concem                                                                                             1-W 5                    Sign OF                       Sum 01'1s)

Co-60 Cs-134 1 1.87E-02 3.49E-02 2 0.00E+00 0 .00E+00 3 1.02£-02 0 .00E+00 4 1.61E-02 2.16E-02 5 1.70E-02 2.14E-02 6 1.02E-02 6.29E-05 7 0.00E+00 1.28E-02 8 1.87£-03 0.00E+00 9 1.45E-03 2.12E -03 10 2.17E-02 1. 58E-03 11 2.00E-02 3.25E-03 12 6.47E-03 1.41E-03 13 0.00E+00 8.83E-03 14 4.96E-03 0.00E+00 15 4 .82E-03 8.48E-03 16 0.00E+00 6.06E-03 17 0.00E+00 0.00E+00 18 3.92E-03 l.24E-03 C1itical Value (Table I.3 of 1ARSSIM) (meets D (doe Cs-137 Ni-63 Sr-90 (as applicable") 0.00E+00 4.03E-03 0.00E+00 SOF 0.058 0.942 + 0.00E+00 0.00E+00 0.00E+00 SOF 0.000 1.000 + 0.0OE+00 2.19E-03 0.00E+00 SOF 0.012 0.988 + 1.0lE-03 3.4 7£-03 2.37E-06 SOF 0.042 0.958 + 9 .59E-04 3.65E-03 2.25E-06 SOF 0.043 0.957 + 5.43E-03 2.19E-03 1.27E-05 SOF 0.018 0.982 + 1.39E-03 0.00E+00 3.27E-06 SOF 0.014 0 .986 + 3.llE-02 4.03 E-04 7.30E-05 SOF 0.033 0.967 + 2.57E-03 3.12E-04 6.04E-06 SOF 0.006 0.994 + 0.00E+00 4.68E-03 0.00E+00 SOF 0.028 0.972 + 0.00E+00 4.30E-03 0.00E+00 SOF 0.028 0.972 + 0 .00E+00 1.39E-03 0.00E+00 SOF 0.009 0.991 + 0.00E+00 0.00E+00 0 .00E+00 SOF 0 .009 0.991 + 2.78E-04 l.07E-03 6.53E-07 SOF 0.006 0.994 + 2.23E-04 1.04E-03 5.23E-07 SOF 0.015 0.985 + 5.18E-03 0.00E+00 1.2 1E-05 SOF 0.011 0.989 + 0.00E+00 0.00E+00 0.00E+00 SOF 0 .000 1.000 + 0.00E+00 8.45E-04 0.00 E+00 SOF 0.006 0.994 + =- - umber of Posith-e Difference ( +) = 18 The mYey unit 0 Prepared By (RE):

not meet the acceptance criteria.

I ame) (Sign ure) Robert F Yetter J11 ~::';;;:.'.I;.;'~'::!.., Digitally slgned byRo FYetterlll tloo,.C Mf"""'y"""'*'* ,fyottoril@oo*sl""'l,tloM.rom p R

d B {RE) Location:your aig ning locationhere eer ev,ewe y . : _ _ _ _ _ _ __ _ _ _ _ _ _=~::=i~a=~~=mt6~~=:i~= 2 9 : 9=.7

                                                                                                                        .o _ _ _ _ _ _ _ __

(Print Name) (Signa ure) (Dat e) [44]

FSS RELEASE RECORD - REV. 1 ~ WASTE WATER TREATMENT FACILITY (WWTF) = ZIONSOLUTIONS;;z= An E.-gySolutions Company SURVEY UNIT 12102 ATTACHMENT 5 - QC SAMPLE ASSESSMENT [45]

PSS RELEASE RECORD - REV. 1 ~ WASTE WATER TREATMENT FACILITY (WWTF) =ZIO SOLUTIQ .-. ( . S ,-;-=-

SURVEY UNIT 12102 Duplicate Sample Assessment Form Ll-1210- A*F oUected from ru.uple location tig-ation 1 1a pe tro cop 1ple A . and Ll 10 greemeut ceptable Re *olnti Ra1ge I

1. ll E 00 16.-t9 0. _- 1.33 1.95£+0 1 0.94 y 0.6-1.66 C01 uuent

For both *ru.nple pair *. the tru.1dard *ample and QC *ru.uple did not both h~n-e a po iti\*e re ult for a gru.nma emitti.n° ROC. therefore the K-

 -tO *as 1 *ed

ep able a~ *ee 1e1 t Re *oh i01

                                                                                             <-t 4-                           O,_ -1.0
                                                                                             -t:                         0.6- 1.66 16-_0                       0.    -1.33 51--00                       0. 0- 1.__
                                                                                            > 00                        0,8_ -1.1 Date:

[46]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 ATTACHMENT 6 - GRAPHICAL PRESENTATIONS [47]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 Posting Plot [48]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 QUANTILE PLOT FOR Co-60 Survey Unit: 12102 Survey Unit Name: Waste Water Treatment Facility (WWTF) Mean: 8.23E-03 pCi/g Quantile Plot For Co-60 2.50E-02 2.00E-02 Concentration (pCi/g) 1.50E-02 1.00E-02 5.00E-03 0.00E+00 0% 20% 40% 60% 80% 100% Percentage [49]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 QUANTILE PLOT FOR Cs-137 Survey Unit: 12102 Survey Unit Name: Waste Water Treatment Facility (WWTF) Mean: 9.71E-03 pCi/g Quantile Plot For Cs-137 1.20E-01 1.00E-01 Concentration (pCi/g) 8.00E-02 6.00E-02 4.00E-02 2.00E-02 0.00E+00 0% 20% 40% 60% 80% 100% Percentage [50]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 HISTOGRAM FOR Co-60 Survey Unit: 12102 Survey Unit Name: Waste Water Treatment Facility (WWTF) Mean: 8.32E-03 pCi/g Median: 5.34E-03 pCi/g ST DEV: 0.009 Skew: 0.659 Frequency Plot For Co-60 10 9 8 7 7 Frequency 6 5 4 4 3 3 2 2 2 1 0 0 3.95E-03 7.90E-03 1.19E-02 1.58E-02 1.98E-02 2.37E-02 Upper End Value (pCi/g) Observation Observation Upper Value Frequency % 3.95E-03 7 39% 7.90E-03 4 22% 1.19E-02 2 11% 1.58E-02 0 0% 1.98E-02 2 11% 2.37E-02 3 17% TOTAL 18 100% [51]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 HISTOGRAM FOR Cs-137 Survey Unit: 12102 Survey Unit Name: Waste Water Treatment Facility (WWTF) Mean: 9.71E-03 pCi/g Median: 4.05E-04 pCi/g ST DEV: 0.027 Skew: 3.882 Frequency Plot For Cs-137 20 18 16 16 14 Frequency 12 10 8 6 4 2 1 1 0 0 0 0 1.88E-02 3.77E-02 5.65E-02 7.53E-02 9.42E-02 1.13E-01 Upper End Value (pCi/g) Observation Observation Upper Value Frequency % 1.88E-02 16 89% 3.77E-02 1 6% 5.65E-02 0 0% 7.53E-02 0 0% 9.42E-02 0 0% 1.13E-01 1 6% TOTAL 18 100% [52]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 Prospective and Retrospective Power Curves for Survey Unit 12112 MARSSIM Sign Test (Pro\Retrospective) Power alpha=5% n=(17\18) std.dev.=(0.3\0.016) 1 Probability of deciding true mean or median < A.L. 0.9 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 [53]

FSS RELEASE RECORD - REV. 1 WASTE WATER TREATMENT FACILITY (WWTF) SURVEY UNIT 12102 ATTACHMENT 7 - GEL LABS CERTIFICATE OF ANALYSIS REPORTS [54]

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

July 20, 2022 Mr. Gerry Wood Zion Solutions 100 Shiloh Blvd. Zion, Illinois 60099 Re: Zion Solutions Work Order: 586069

Dear Mr. Wood:

GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the sample(s) we received on July 14, 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 Enclosures Page 1 of 60 SDG: 586069

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: 586069 GEL Work Order: 586069 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 60 SDG: 586069

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 20, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-201-SS Project: ENRG08001 Sample ID: 586069001 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 8.87% 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 0.665 +/-0.198 0.179 +/-0.209 pCi/g MXR1 07/18/22 1019 2290065 1 Bismuth-211 UI 0.000 +/-0.348 0.585 +/-1.37 pCi/g Bismuth-212 1.31 +/-0.452 0.599 +/-0.468 pCi/g Bismuth-214 0.803 +/-0.126 0.0840 +/-0.144 pCi/g Cesium-134 U 0.0604 +/-0.0388 0.0621 +/-0.0478 0.173 pCi/g Cesium-137 U -0.00946 +/-0.0263 0.0479 +/-0.0266 0.363 pCi/g Cobalt-60 U 0.0204 +/-0.0289 0.0584 +/-0.0303 0.109 pCi/g Europium-152 U 0.0256 +/-0.0747 0.125 +/-0.0756 0.869 pCi/g Europium-154 U 0.0357 +/-0.102 0.173 +/-0.103 0.799 pCi/g Lead-212 0.828 +/-0.0862 0.0755 +/-0.109 pCi/g Lead-214 1.05 +/-0.126 0.0894 +/-0.153 pCi/g Potassium-40 20.6 +/-1.26 0.368 +/-2.28 pCi/g Thallium-208 0.240 +/-0.0512 0.0421 +/-0.0554 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-201-SS Project: ENRG08001 Sample ID: 586069001 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 60 SDG: 586069

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 20, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-202-SS Project: ENRG08001 Sample ID: 586069002 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 6.83% 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 0.606 +/-0.169 0.304 +/-0.327 pCi/g MXR1 07/18/22 1019 2290065 1 Bismuth-211 UI 0.000 +/-0.590 0.182 +/-0.613 pCi/g Bismuth-212 U 0.280 +/-0.281 0.580 +/-0.310 pCi/g Bismuth-214 0.625 +/-0.0902 0.0670 +/-0.105 pCi/g Cesium-134 UI 0.000 +/-0.0554 0.0525 +/-0.0628 0.173 pCi/g Cesium-137 U -0.0148 +/-0.0212 0.0364 +/-0.0223 0.363 pCi/g Cobalt-60 U -0.0107 +/-0.0227 0.0410 +/-0.0232 0.109 pCi/g Europium-152 U 0.00443 +/-0.0476 0.0935 +/-0.0477 0.869 pCi/g Europium-154 U -0.00543 +/-0.0688 0.131 +/-0.0688 0.799 pCi/g Lead-212 0.568 +/-0.0738 0.0547 +/-0.0881 pCi/g Lead-214 0.689 +/-0.134 0.179 +/-0.145 pCi/g Potassium-40 15.9 +/-1.14 0.321 +/-1.91 pCi/g Thallium-208 0.182 +/-0.0527 0.0355 +/-0.0549 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-202-SS Project: ENRG08001 Sample ID: 586069002 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 60 SDG: 586069

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 20, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-203-SS Project: ENRG08001 Sample ID: 586069003 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 1.81% 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 0.165 +/-0.153 0.166 +/-0.154 pCi/g MXR1 07/18/22 1020 2290065 1 Bismuth-211 UI 0.000 +/-0.297 0.319 +/-0.387 pCi/g Bismuth-212 1.33 +/-0.493 0.391 +/-0.506 pCi/g Bismuth-214 0.170 +/-0.0948 0.0827 +/-0.0959 pCi/g Cesium-134 U -0.00275 +/-0.0224 0.0436 +/-0.0224 0.173 pCi/g Cesium-137 U -0.0245 +/-0.0257 0.0392 +/-0.0280 0.363 pCi/g Cobalt-60 U 0.0111 +/-0.0189 0.0468 +/-0.0195 0.109 pCi/g Europium-152 U -0.0591 +/-0.0562 0.0893 +/-0.0624 0.869 pCi/g Europium-154 U 0.0351 +/-0.0747 0.155 +/-0.0764 0.799 pCi/g Lead-212 0.188 +/-0.0900 0.0616 +/-0.0914 pCi/g Lead-214 0.197 +/-0.108 0.0719 +/-0.109 pCi/g Potassium-40 10.3 +/-1.17 0.428 +/-1.49 pCi/g Thallium-208 0.0763 +/-0.0471 0.0377 +/-0.0475 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-203-SS Project: ENRG08001 Sample ID: 586069003 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 60 SDG: 586069

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 20, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-204-SS Project: ENRG08001 Sample ID: 586069004 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 1.8% 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 0.121 +/-0.142 0.237 +/-0.152 pCi/g MXR1 07/18/22 1020 2290065 1 Bismuth-211 UI 0.000 +/-0.238 0.318 +/-0.354 pCi/g Bismuth-212 U 0.368 +/-0.329 0.710 +/-0.370 pCi/g Bismuth-214 0.205 +/-0.0952 0.0735 +/-0.0973 pCi/g Cesium-134 U 0.0375 +/-0.0448 0.0569 +/-0.0480 0.173 pCi/g Cesium-137 U 0.00367 +/-0.0254 0.0493 +/-0.0255 0.363 pCi/g Cobalt-60 U 0.0176 +/-0.0214 0.0507 +/-0.0229 0.109 pCi/g Europium-152 U -0.0211 +/-0.0502 0.0963 +/-0.0511 0.869 pCi/g Europium-154 U 0.0255 +/-0.0751 0.156 +/-0.0760 0.799 pCi/g Lead-212 0.296 +/-0.0615 0.0399 +/-0.0664 pCi/g Lead-214 0.207 +/-0.0864 0.0713 +/-0.0880 pCi/g Potassium-40 11.2 +/-1.20 0.451 +/-1.53 pCi/g Thallium-208 0.0807 +/-0.0448 0.0362 +/-0.0455 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-204-SS Project: ENRG08001 Sample ID: 586069004 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 60 SDG: 586069

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 20, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-205-SS Project: ENRG08001 Sample ID: 586069005 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 6.8% 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 0.860 +/-0.233 0.185 +/-0.244 pCi/g MXR1 07/18/22 1021 2290065 1 Bismuth-211 U 0.148 +/-0.732 0.218 +/-0.788 pCi/g Bismuth-212 0.815 +/-0.483 0.717 +/-0.489 pCi/g Bismuth-214 0.847 +/-0.146 0.106 +/-0.168 pCi/g Cesium-134 U 0.0371 +/-0.0370 0.0734 +/-0.0407 0.173 pCi/g Cesium-137 U 0.00348 +/-0.0303 0.0562 +/-0.0303 0.363 pCi/g Cobalt-60 U 0.0185 +/-0.0262 0.0570 +/-0.0275 0.109 pCi/g Europium-152 U -0.0281 +/-0.0549 0.102 +/-0.0564 0.869 pCi/g Europium-154 U -0.0223 +/-0.0822 0.152 +/-0.0828 0.799 pCi/g Lead-212 0.820 +/-0.0886 0.0637 +/-0.112 pCi/g Lead-214 0.957 +/-0.129 0.228 +/-0.153 pCi/g Potassium-40 18.3 +/-1.50 0.477 +/-2.17 pCi/g Thallium-208 0.245 +/-0.0759 0.0438 +/-0.0796 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

Contact:

Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-205-SS Project: ENRG08001 Sample ID: 586069005 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FQGS-205-SS Project: ENRG08001 Sample ID: 586069006 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-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 0.823 +/-0.228 0.180 +/-0.243 pCi/g MXR1 07/18/22 1043 2290065 1 Bismuth-211 UI 0.000 +/-0.337 0.599 +/-1.15 pCi/g Bismuth-212 0.814 +/-0.686 0.628 +/-0.690 pCi/g Bismuth-214 0.744 +/-0.137 0.0897 +/-0.152 pCi/g Cesium-134 U 0.00586 +/-0.0283 0.0559 +/-0.0284 0.173 pCi/g Cesium-137 U -0.00685 +/-0.0243 0.0433 +/-0.0245 0.363 pCi/g Cobalt-60 U 0.0232 +/-0.0443 0.0591 +/-0.0456 0.109 pCi/g Europium-152 U 0.0166 +/-0.0565 0.111 +/-0.0570 0.869 pCi/g Europium-154 U 0.0358 +/-0.0935 0.168 +/-0.0950 0.799 pCi/g Lead-212 0.732 +/-0.0820 0.0657 +/-0.102 pCi/g Lead-214 0.868 +/-0.122 0.0836 +/-0.142 pCi/g Potassium-40 19.5 +/-1.37 0.312 +/-2.34 pCi/g Thallium-208 0.229 +/-0.0732 0.0402 +/-0.0760 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FQGS-205-SS Project: ENRG08001 Sample ID: 586069006 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-206-SS Project: ENRG08001 Sample ID: 586069007 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 5.29% 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 0.352 +/-0.141 0.123 +/-0.145 pCi/g MXR1 07/18/22 1044 2290065 1 Bismuth-211 UI 0.000 +/-0.232 0.359 +/-0.472 pCi/g Bismuth-212 U 0.148 +/-0.256 0.505 +/-0.265 pCi/g Bismuth-214 0.254 +/-0.0748 0.0558 +/-0.0781 pCi/g Cesium-134 U 0.000109 +/-0.0175 0.0348 +/-0.0175 0.173 pCi/g Cesium-137 U 0.0197 +/-0.0179 0.0358 +/-0.0201 0.363 pCi/g Cobalt-60 U 0.0111 +/-0.0176 0.0381 +/-0.0183 0.109 pCi/g Europium-152 U -0.0150 +/-0.0426 0.0813 +/-0.0432 0.869 pCi/g Europium-154 U 0.00165 +/-0.0604 0.116 +/-0.0604 0.799 pCi/g Lead-212 0.292 +/-0.0580 0.0479 +/-0.0628 pCi/g Lead-214 0.325 +/-0.0843 0.0658 +/-0.0885 pCi/g Potassium-40 13.7 +/-1.04 0.325 +/-1.65 pCi/g Thallium-208 0.0861 +/-0.0485 0.0307 +/-0.0491 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-206-SS Project: ENRG08001 Sample ID: 586069007 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-207-SS Project: ENRG08001 Sample ID: 586069008 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 6.98% 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 0.770 +/-0.229 0.177 +/-0.240 pCi/g MXR1 07/18/22 1045 2290065 1 Bismuth-211 U 0.0647 +/-0.661 0.224 +/-0.741 pCi/g Bismuth-212 U 0.619 +/-0.419 0.853 +/-0.506 pCi/g Bismuth-214 0.927 +/-0.124 0.0739 +/-0.147 pCi/g Cesium-134 U 0.0221 +/-0.0314 0.0616 +/-0.0330 0.173 pCi/g Cesium-137 U 0.00506 +/-0.0237 0.0455 +/-0.0238 0.363 pCi/g Cobalt-60 U -0.0183 +/-0.0221 0.0376 +/-0.0237 0.109 pCi/g Europium-152 U 0.0141 +/-0.0615 0.121 +/-0.0619 0.869 pCi/g Europium-154 U 0.0288 +/-0.0876 0.175 +/-0.0886 0.799 pCi/g Lead-212 0.796 +/-0.0942 0.0711 +/-0.118 pCi/g Lead-214 1.02 +/-0.147 0.230 +/-0.171 pCi/g Potassium-40 21.2 +/-1.42 0.437 +/-2.52 pCi/g Thallium-208 0.238 +/-0.0636 0.0435 +/-0.0667 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-207-SS Project: ENRG08001 Sample ID: 586069008 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-208-SS Project: ENRG08001 Sample ID: 586069009 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 1.69% 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 0.376 +/-0.180 0.131 +/-0.184 pCi/g MXR1 07/18/22 1046 2290065 1 Bismuth-211 UI 0.000 +/-0.238 0.305 +/-0.457 pCi/g Bismuth-212 U 0.150 +/-0.263 0.535 +/-0.272 pCi/g Bismuth-214 0.256 +/-0.0755 0.0608 +/-0.0785 pCi/g Cesium-134 U -0.00375 +/-0.0229 0.0402 +/-0.0230 0.173 pCi/g Cesium-137 0.113 +/-0.0379 0.0302 +/-0.0390 0.363 pCi/g Cobalt-60 U 0.00204 +/-0.0217 0.0382 +/-0.0217 0.109 pCi/g Europium-152 U -0.000344 +/-0.0434 0.0803 +/-0.0434 0.869 pCi/g Europium-154 U 0.0287 +/-0.0730 0.146 +/-0.0742 0.799 pCi/g Lead-212 0.269 +/-0.0682 0.0538 +/-0.0720 pCi/g Lead-214 0.308 +/-0.0865 0.0570 +/-0.0902 pCi/g Potassium-40 10.6 +/-0.924 0.391 +/-1.42 pCi/g Thallium-208 0.105 +/-0.0379 0.0288 +/-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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-208-SS Project: ENRG08001 Sample ID: 586069009 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-209-SS Project: ENRG08001 Sample ID: 586069010 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 1.6% 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 0.231 +/-0.134 0.126 +/-0.136 pCi/g MXR1 07/18/22 1046 2290065 1 Bismuth-211 UI 0.000 +/-0.277 0.273 +/-0.356 pCi/g Bismuth-212 U 0.210 +/-0.187 0.425 +/-0.210 pCi/g Bismuth-214 0.176 +/-0.0738 0.0595 +/-0.0752 pCi/g Cesium-134 U 0.00368 +/-0.0172 0.0340 +/-0.0173 0.173 pCi/g Cesium-137 U 0.00934 +/-0.0172 0.0351 +/-0.0177 0.363 pCi/g Cobalt-60 U 0.00158 +/-0.0146 0.0309 +/-0.0146 0.109 pCi/g Europium-152 U 0.00358 +/-0.0411 0.0832 +/-0.0412 0.869 pCi/g Europium-154 U -0.0333 +/-0.0596 0.107 +/-0.0615 0.799 pCi/g Lead-212 0.200 +/-0.0686 0.0491 +/-0.0708 pCi/g Lead-214 0.177 +/-0.101 0.0579 +/-0.102 pCi/g Potassium-40 9.71 +/-0.906 0.363 +/-1.31 pCi/g Thallium-208 0.0593 +/-0.0367 0.0273 +/-0.0371 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-209-SS Project: ENRG08001 Sample ID: 586069010 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-210-SS Project: ENRG08001 Sample ID: 586069011 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 3.31% 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 0.299 +/-0.114 0.108 +/-0.117 pCi/g MXR1 07/18/22 1050 2290065 1 Bismuth-211 U 0.00543 +/-0.380 0.137 +/-0.387 pCi/g Bismuth-212 U 0.0362 +/-0.266 0.490 +/-0.267 pCi/g Bismuth-214 0.205 +/-0.0757 0.0647 +/-0.0777 pCi/g Cesium-134 U 0.00274 +/-0.0167 0.0347 +/-0.0167 0.173 pCi/g Cesium-137 U -0.00376 +/-0.0149 0.0276 +/-0.0150 0.363 pCi/g Cobalt-60 U 0.0237 +/-0.0164 0.0416 +/-0.0197 0.109 pCi/g Europium-152 U -0.00372 +/-0.0385 0.0770 +/-0.0385 0.869 pCi/g Europium-154 U 0.0499 +/-0.0687 0.142 +/-0.0724 0.799 pCi/g Lead-212 0.191 +/-0.0747 0.0459 +/-0.0765 pCi/g Lead-214 0.246 +/-0.0924 0.108 +/-0.0947 pCi/g Potassium-40 9.68 +/-0.945 0.313 +/-1.33 pCi/g Thallium-208 UI 0.000 +/-0.0431 0.0302 +/-0.0432 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-210-SS Project: ENRG08001 Sample ID: 586069011 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-210-SB Project: ENRG08001 Sample ID: 586069012 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 2.93% 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 0.422 +/-0.176 0.265 +/-0.263 pCi/g MXR1 07/18/22 1319 2290065 1 Bismuth-211 UI 0.000 +/-0.280 0.379 +/-0.510 pCi/g Bismuth-212 0.891 +/-0.523 0.453 +/-0.529 pCi/g Bismuth-214 0.196 +/-0.127 0.0729 +/-0.128 pCi/g Cesium-134 U 0.0170 +/-0.0251 0.0515 +/-0.0263 0.173 pCi/g Cesium-137 U -0.00596 +/-0.0199 0.0369 +/-0.0201 0.363 pCi/g Cobalt-60 U -0.0120 +/-0.0164 0.0285 +/-0.0173 0.109 pCi/g Europium-152 U -0.0410 +/-0.0573 0.0943 +/-0.0604 0.869 pCi/g Europium-154 U -0.0285 +/-0.0753 0.121 +/-0.0765 0.799 pCi/g Lead-212 0.317 +/-0.0680 0.0569 +/-0.0744 pCi/g Lead-214 0.337 +/-0.102 0.0715 +/-0.106 pCi/g Potassium-40 11.3 +/-1.08 0.389 +/-1.57 pCi/g Thallium-208 0.0712 +/-0.0460 0.0335 +/-0.0464 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-210-SB Project: ENRG08001 Sample ID: 586069012 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-211-SS Project: ENRG08001 Sample ID: 586069013 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 2.79% 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 0.276 +/-0.149 0.217 +/-0.196 pCi/g MXR1 07/18/22 1319 2290065 1 Bismuth-211 0.504 +/-0.184 0.171 +/-0.189 pCi/g Bismuth-212 U 0.147 +/-0.268 0.510 +/-0.276 pCi/g Bismuth-214 0.150 +/-0.0641 0.0690 +/-0.0655 pCi/g Cesium-134 U 0.00563 +/-0.0215 0.0439 +/-0.0216 0.173 pCi/g Cesium-137 U -0.00207 +/-0.0180 0.0338 +/-0.0181 0.363 pCi/g Cobalt-60 U 0.0218 +/-0.0312 0.0425 +/-0.0328 0.109 pCi/g Europium-152 U 0.00180 +/-0.0427 0.0772 +/-0.0427 0.869 pCi/g Europium-154 U -0.0512 +/-0.0656 0.111 +/-0.0696 0.799 pCi/g Lead-212 0.302 +/-0.0783 0.0864 +/-0.159 pCi/g Lead-214 0.183 +/-0.0667 0.108 +/-0.107 pCi/g Potassium-40 9.98 +/-0.894 0.315 +/-1.32 pCi/g Thallium-208 0.0837 +/-0.0309 0.0349 +/-0.0318 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-211-SS Project: ENRG08001 Sample ID: 586069013 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-211-SB Project: ENRG08001 Sample ID: 586069014 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 10.8% 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 1.04 +/-0.281 0.190 +/-0.297 pCi/g MXR1 07/18/22 1320 2290065 1 Bismuth-211 UI 0.000 +/-0.443 0.670 +/-1.34 pCi/g Bismuth-212 0.922 +/-0.758 0.697 +/-0.763 pCi/g Bismuth-214 0.856 +/-0.135 0.0971 +/-0.153 pCi/g Cesium-134 U 0.0634 +/-0.0711 0.0644 +/-0.0769 0.173 pCi/g Cesium-137 U 0.0113 +/-0.0267 0.0531 +/-0.0272 0.363 pCi/g Cobalt-60 U -0.00493 +/-0.0283 0.0544 +/-0.0284 0.109 pCi/g Europium-152 U -0.00384 +/-0.0755 0.138 +/-0.0755 0.869 pCi/g Europium-154 U 0.0586 +/-0.0992 0.203 +/-0.103 0.799 pCi/g Lead-212 0.878 +/-0.102 0.0779 +/-0.130 pCi/g Lead-214 1.00 +/-0.161 0.110 +/-0.181 pCi/g Potassium-40 20.7 +/-1.56 0.494 +/-2.49 pCi/g Thallium-208 0.266 +/-0.0582 0.0483 +/-0.0624 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-211-SB Project: ENRG08001 Sample ID: 586069014 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-212-SS Project: ENRG08001 Sample ID: 586069015 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 1.29% 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 0.202 +/-0.129 0.119 +/-0.130 pCi/g MXR1 07/18/22 1320 2290065 1 Bismuth-211 UI 0.000 +/-0.422 0.159 +/-0.425 pCi/g Bismuth-212 U 0.123 +/-0.245 0.456 +/-0.252 pCi/g Bismuth-214 0.190 +/-0.0850 0.0579 +/-0.0867 pCi/g Cesium-134 U 0.00244 +/-0.0149 0.0306 +/-0.0149 0.173 pCi/g Cesium-137 U -0.0110 +/-0.0235 0.0457 +/-0.0241 0.363 pCi/g Cobalt-60 U 0.00706 +/-0.0185 0.0378 +/-0.0188 0.109 pCi/g Europium-152 U 0.000471 +/-0.0431 0.0839 +/-0.0431 0.869 pCi/g Europium-154 U 0.0124 +/-0.0538 0.104 +/-0.0541 0.799 pCi/g Lead-212 0.156 +/-0.0627 0.0470 +/-0.0640 pCi/g Lead-214 0.200 +/-0.0717 0.0946 +/-0.0738 pCi/g Potassium-40 10.8 +/-0.876 0.271 +/-1.31 pCi/g Thallium-208 0.0673 +/-0.0344 0.0279 +/-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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-212-SS Project: ENRG08001 Sample ID: 586069015 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-213-SS Project: ENRG08001 Sample ID: 586069016 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 7.08% 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 0.748 +/-0.271 0.192 +/-0.280 pCi/g MXR1 07/18/22 1320 2290065 1 Bismuth-211 UI 0.000 +/-0.721 0.241 +/-0.797 pCi/g Bismuth-212 0.979 +/-0.605 0.572 +/-0.612 pCi/g Bismuth-214 0.903 +/-0.158 0.0771 +/-0.179 pCi/g Cesium-134 U 0.0153 +/-0.0284 0.0559 +/-0.0293 0.173 pCi/g Cesium-137 U -0.00412 +/-0.0291 0.0517 +/-0.0292 0.363 pCi/g Cobalt-60 U -0.0134 +/-0.0270 0.0478 +/-0.0277 0.109 pCi/g Europium-152 U 0.00825 +/-0.0642 0.115 +/-0.0643 0.869 pCi/g Europium-154 U -0.0128 +/-0.0924 0.170 +/-0.0926 0.799 pCi/g Lead-212 0.795 +/-0.0910 0.0674 +/-0.111 pCi/g Lead-214 1.20 +/-0.137 0.237 +/-0.168 pCi/g Potassium-40 21.6 +/-1.38 0.298 +/-2.29 pCi/g Thallium-208 0.204 +/-0.0570 0.0461 +/-0.0601 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-213-SS Project: ENRG08001 Sample ID: 586069016 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-214-SS Project: ENRG08001 Sample ID: 586069017 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 1.32% 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 0.268 +/-0.138 0.111 +/-0.140 pCi/g MXR1 07/18/22 1321 2290065 1 Bismuth-211 UI 0.000 +/-0.353 0.162 +/-0.358 pCi/g Bismuth-212 U 0.207 +/-0.264 0.499 +/-0.280 pCi/g Bismuth-214 0.261 +/-0.0873 0.0525 +/-0.0903 pCi/g Cesium-134 UI 0.000 +/-0.0236 0.0336 +/-0.0284 0.173 pCi/g Cesium-137 U 0.00101 +/-0.0188 0.0328 +/-0.0188 0.363 pCi/g Cobalt-60 U 0.00541 +/-0.0180 0.0363 +/-0.0182 0.109 pCi/g Europium-152 U -0.0157 +/-0.0375 0.0716 +/-0.0382 0.869 pCi/g Europium-154 U -0.0195 +/-0.0503 0.0903 +/-0.0511 0.799 pCi/g Lead-212 0.244 +/-0.0536 0.0421 +/-0.0573 pCi/g Lead-214 0.250 +/-0.0744 0.114 +/-0.0771 pCi/g Potassium-40 9.21 +/-0.783 0.237 +/-1.15 pCi/g Thallium-208 0.0442 +/-0.0329 0.0305 +/-0.0331 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-214-SS Project: ENRG08001 Sample ID: 586069017 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-215-SS Project: ENRG08001 Sample ID: 586069018 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 1.78% 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 0.198 +/-0.131 0.101 +/-0.132 pCi/g MXR1 07/18/22 1321 2290065 1 Bismuth-211 UI 0.000 +/-0.170 0.220 +/-0.360 pCi/g Bismuth-212 U 0.275 +/-0.283 0.324 +/-0.284 pCi/g Bismuth-214 0.115 +/-0.0544 0.0474 +/-0.0554 pCi/g Cesium-134 U 0.0147 +/-0.0218 0.0291 +/-0.0229 0.173 pCi/g Cesium-137 U 0.000809 +/-0.0150 0.0268 +/-0.0150 0.363 pCi/g Cobalt-60 U 0.00526 +/-0.0158 0.0316 +/-0.0160 0.109 pCi/g Europium-152 U 0.00135 +/-0.0356 0.0668 +/-0.0356 0.869 pCi/g Europium-154 U -0.00659 +/-0.0485 0.0881 +/-0.0486 0.799 pCi/g Lead-212 0.252 +/-0.0534 0.0376 +/-0.0571 pCi/g Lead-214 0.251 +/-0.0617 0.0468 +/-0.0650 pCi/g Potassium-40 11.0 +/-0.764 0.232 +/-1.24 pCi/g Thallium-208 0.0629 +/-0.0344 0.0245 +/-0.0349 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-215-SS Project: ENRG08001 Sample ID: 586069018 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-216-SS Project: ENRG08001 Sample ID: 586069019 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 1.06% 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 0.221 +/-0.130 0.191 +/-0.165 pCi/g MXR1 07/18/22 1321 2290065 1 Bismuth-211 UI 0.000 +/-0.253 0.262 +/-0.333 pCi/g Bismuth-212 U 0.274 +/-0.266 0.552 +/-0.295 pCi/g Bismuth-214 0.193 +/-0.0647 0.0553 +/-0.0669 pCi/g Cesium-134 U 0.0105 +/-0.0202 0.0373 +/-0.0207 0.173 pCi/g Cesium-137 U 0.0188 +/-0.0199 0.0400 +/-0.0217 0.363 pCi/g Cobalt-60 U -0.00385 +/-0.0152 0.0296 +/-0.0153 0.109 pCi/g Europium-152 U 0.0306 +/-0.0410 0.0863 +/-0.0433 0.869 pCi/g Europium-154 U -0.0257 +/-0.0502 0.0925 +/-0.0515 0.799 pCi/g Lead-212 0.233 +/-0.0634 0.0450 +/-0.0664 pCi/g Lead-214 0.171 +/-0.0918 0.0581 +/-0.0929 pCi/g Potassium-40 10.3 +/-0.849 0.305 +/-1.28 pCi/g Thallium-208 0.0440 +/-0.0397 0.0297 +/-0.0399 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-216-SS Project: ENRG08001 Sample ID: 586069019 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-217-SS Project: ENRG08001 Sample ID: 586069020 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 2.66% 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 0.283 +/-0.133 0.116 +/-0.135 pCi/g MXR1 07/18/22 1322 2290065 1 Bismuth-211 UI 0.000 +/-0.423 0.146 +/-0.428 pCi/g Bismuth-212 U 0.136 +/-0.207 0.440 +/-0.216 pCi/g Bismuth-214 0.195 +/-0.0862 0.0579 +/-0.0882 pCi/g Cesium-134 U -0.000366 +/-0.0184 0.0361 +/-0.0184 0.173 pCi/g Cesium-137 U -0.00254 +/-0.0189 0.0339 +/-0.0189 0.363 pCi/g Cobalt-60 U -0.00296 +/-0.0149 0.0286 +/-0.0150 0.109 pCi/g Europium-152 U 0.00350 +/-0.0406 0.0783 +/-0.0406 0.869 pCi/g Europium-154 U 0.0250 +/-0.0621 0.124 +/-0.0631 0.799 pCi/g Lead-212 0.236 +/-0.0525 0.0467 +/-0.0559 pCi/g Lead-214 0.272 +/-0.0855 0.113 +/-0.0885 pCi/g Potassium-40 12.3 +/-0.936 0.299 +/-1.44 pCi/g Thallium-208 0.0540 +/-0.0361 0.0303 +/-0.0365 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 SF1 07/14/22 1900 2289905 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-217-SS Project: ENRG08001 Sample ID: 586069020 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 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-218-SS Project: ENRG08001 Sample ID: 586069021 Client ID: ENRG080 Matrix: Soil Collect Date: 05-JUL-22 Receive Date: 14-JUL-22 Collector: Client Moisture: 6.51% 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 0.577 +/-0.161 0.117 +/-0.170 pCi/g MXR1 07/18/22 1325 2290067 1 Bismuth-211 UI 0.000 +/-0.285 0.401 +/-0.972 pCi/g Bismuth-212 0.718 +/-0.370 0.450 +/-0.376 pCi/g Bismuth-214 0.536 +/-0.105 0.0621 +/-0.115 pCi/g Cesium-134 U 0.00215 +/-0.0220 0.0412 +/-0.0221 0.173 pCi/g Cesium-137 U -0.00670 +/-0.0170 0.0308 +/-0.0172 0.363 pCi/g Cobalt-60 U 0.00428 +/-0.0181 0.0370 +/-0.0182 0.109 pCi/g Europium-152 U 0.0179 +/-0.0396 0.0809 +/-0.0405 0.869 pCi/g Europium-154 U 0.00429 +/-0.0662 0.115 +/-0.0663 0.799 pCi/g Lead-212 0.663 +/-0.0712 0.0449 +/-0.0901 pCi/g Lead-214 0.735 +/-0.104 0.0579 +/-0.121 pCi/g Potassium-40 17.9 +/-1.12 0.260 +/-2.02 pCi/g Thallium-208 0.181 +/-0.0425 0.0271 +/-0.0453 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 SF1 07/14/22 1903 2289907 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 43 of 60 SDG: 586069

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 20, 2022

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Mr. Gerry Wood Project: Zion Solutions Client Sample ID: L1-12102A-FSGS-218-SS Project: ENRG08001 Sample ID: 586069021 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 44 of 60 SDG: 586069

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Report Date: July 20, 2022 Client : Zion Solutions Page 1 of 7 100 Shiloh Blvd. Zion, Illinois

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Mr. Gerry Wood Workorder: 586069 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 2290065 QC1205139810 586069001 DUP Actinium-228 0.665 0.676 pCi/g 1.57 (0% - 100%) MXR1 07/18/22 13:23 Uncert: +/-0.198 +/-0.217 TPU: +/-0.209 +/-0.227 Bismuth-211 UI 0.000 UI 0.000 pCi/g 0 N/A Uncert: +/-0.348 +/-0.769 TPU: +/-1.37 +/-0.827 Bismuth-212 1.31 1.29 pCi/g 1.85 (0% - 100%) Uncert: +/-0.452 +/-0.533 TPU: +/-0.468 +/-0.547 Bismuth-214 0.803 0.705 pCi/g 13 (0%-20%) Uncert: +/-0.126 +/-0.126 TPU: +/-0.144 +/-0.141 Cesium-134 U 0.0604 U 0.0287 pCi/g 0 N/A Uncert: +/-0.0388 +/-0.0382 TPU: +/-0.0478 +/-0.0404 Cesium-137 U -0.00946 U 0.0321 pCi/g 0 N/A Uncert: +/-0.0263 +/-0.0266 TPU: +/-0.0266 +/-0.0268 Cobalt-60 U 0.0204 U 0.00222 pCi/g 0 N/A Uncert: +/-0.0289 +/-0.0216 TPU: +/-0.0303 +/-0.0216 Europium-152 U 0.0256 U -0.0314 pCi/g 0 N/A Uncert: +/-0.0747 +/-0.0565 TPU: +/-0.0756 +/-0.0583 Europium-154 U 0.0357 U 0.0216 pCi/g 0 N/A Uncert: +/-0.102 +/-0.0781 TPU: +/-0.103 +/-0.0787 Lead-212 0.828 0.817 pCi/g 1.4 (0%-20%) Uncert: +/-0.0862 +/-0.0845 TPU: +/-0.109 +/-0.108 Lead-214 1.05 1.08 pCi/g 2.72 (0%-20%) Uncert: +/-0.126 +/-0.139 TPU: +/-0.153 +/-0.165 Potassium-40 20.6 21.1 pCi/g 2.35 (0%-20%) Uncert: +/-1.26 +/-1.29 TPU: +/-2.28 +/-2.36 Thallium-208 0.240 0.286 pCi/g 17.7 (0%-20%) Uncert: +/-0.0512 +/-0.0537 TPU: +/-0.0554 +/-0.0595 QC1205139811 LCS Americium-241 485 566 pCi/g 117 (75%-125%) MXR1 07/18/22 13:24 Page 45 of 60 SDG: 586069

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 586069 Page 2 of 7 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 2290065 Uncert: +/-13.6 TPU: +/-65.7 Actinium-228 U 0.0156 pCi/g Uncert: +/-2.41 TPU: +/-2.41 Bismuth-211 U -0.272 pCi/g Uncert: +/-2.78 TPU: +/-2.78 Bismuth-212 U -1.54 pCi/g Uncert: +/-5.99 TPU: +/-6.03 Bismuth-214 U 0.362 pCi/g Uncert: +/-0.866 TPU: +/-0.882 Cesium-134 U -0.115 pCi/g Uncert: +/-0.589 TPU: +/-0.591 Cesium-137 157 156 pCi/g 99.1 (75%-125%) Uncert: +/-3.23 TPU: +/-13.7 Cobalt-60 75.0 73.9 pCi/g 98.5 (75%-125%) Uncert: +/-2.73 TPU: +/-7.77 Europium-152 U 0.232 pCi/g Uncert: +/-1.37 TPU: +/-1.37 Europium-154 U 0.346 pCi/g Uncert: +/-0.656 TPU: +/-0.675 Lead-212 U 0.219 pCi/g Uncert: +/-0.668 TPU: +/-0.675 Lead-214 U 0.642 pCi/g Uncert: +/-1.01 TPU: +/-1.05 Potassium-40 U -0.0996 pCi/g Uncert: +/-1.32 TPU: +/-1.32 Thallium-208 U -0.0838 pCi/g Uncert: +/-0.441 TPU: +/-0.443 QC1205139809 MB Actinium-228 U 0.0103 pCi/g MXR1 07/18/2213:22 Uncert: +/-0.0578 TPU: +/-0.0580 Bismuth-211 U -0.0177 pCi/g Page 46 of 60 SDG: 586069

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 586069 Page 3 of 7 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 2290065 Uncert: +/-0.0732 TPU: +/-0.0736 Bismuth-212 U -0.0305 pCi/g Uncert: +/-0.175 TPU: +/-0.175 Bismuth-214 U 0.0432 pCi/g Uncert: +/-0.0395 TPU: +/-0.0441 Cesium-134 U -0.00213 pCi/g Uncert: +/-0.0146 TPU: +/-0.0147 Cesium-137 U 0.0181 pCi/g Uncert: +/-0.0141 TPU: +/-0.0163 Cobalt-60 U 0.00313 pCi/g Uncert: +/-0.0132 TPU: +/-0.0133 Europium-152 U -0.0208 pCi/g Uncert: +/-0.0262 TPU: +/-0.0279 Europium-154 U 0.00983 pCi/g Uncert: +/-0.0275 TPU: +/-0.0279 Lead-212 U 0.0114 pCi/g Uncert: +/-0.0283 TPU: +/-0.0288 Lead-214 U -0.0152 pCi/g Uncert: +/-0.0263 TPU: +/-0.0272 Potassium-40 U -0.179 pCi/g Uncert: +/-0.163 TPU: +/-0.183 Thallium-208 U -0.0111 pCi/g Uncert: +/-0.0132 TPU: +/-0.0142 Batch 2290067 QC1205139816 586069021 DUP Actinium-228 0.577 0.604 pCi/g 4.71 (0% - 100%) MXR1 07/19/2209:40 Uncert: +/-0.161 +/-0.260 TPU: +/-0.170 +/-0.267 Bismuth-211 UI 0.000 UI 0.000 pCi/g 0 N/A Uncert: +/-0.285 +/-0.432 TPU: +/-0.972 +/-1.04 Bismuth-212 0.718 0.888 pCi/g 21.2 (0% - 100%) Uncert: +/-0.370 +/-0.598 TPU: +/-0.376 +/-0.603 Page 47 of 60 SDG: 586069

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 586069 Page 4 of 7 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 2290067 Bismuth-214 0.536 0.493 pCi/g 8.36 (0%-20%) Uncert: +/-0.105 +/-0.185 TPU: +/-0.115 +/-0.189 Cesium-134 U 0.00215 U 0.0388 pCi/g 0 N/A Uncert: +/-0.0220 +/-0.0588 TPU: +/-0.0221 +/-0.0614 Cesium-137 U -0.00670 U -0.00194 pCi/g 0 N/A Uncert: +/-0.0170 +/-0.0333 TPU: +/-0.0172 +/-0.0333 Cobalt-60 U 0.00428 U 0.0138 pCi/g 0 N/A Uncert: +/-0.0181 +/-0.0309 TPU: +/-0.0182 +/-0.0315 Europium-152 U 0.0179 U -0.0166 pCi/g 0 N/A Uncert: +/-0.0396 +/-0.0786 TPU: +/-0.0405 +/-0.0789 Europium-154 U 0.00429 U -0.0523 pCi/g 0 N/A Uncert: +/-0.0662 +/-0.0918 TPU: +/-0.0663 +/-0.0949 Lead-212 0.663 0.738 pCi/g 10.7 (0%-20%) Uncert: +/-0.0712 +/-0.120 TPU: +/-0.0901 +/-0.135 Lead-214 0.735 0.751 pCi/g 2.25 (0%-20%) Uncert: +/-0.104 +/-0.157 TPU: +/-0.121 +/-0.168 Potassium-40 17.9 19.6 pCi/g 9.45 (0%-20%) Uncert: +/-1.12 +/-1.74 TPU: +/-2.02 +/-2.58 Thallium-208 0.181 0.201 pCi/g 10.6 (0%-20%) Uncert: +/-0.0425 +/-0.0685 TPU: +/-0.0453 +/-0.0706 QC1205139817 LCS Americium-241 485 537 pCi/g 111 (75%-125%) MXR1 07/18/2213:43 Uncert: +/-10.8 TPU: +/-61.9 Actinium-228 U -0.598 pCi/g Uncert: +/-2.58 TPU: +/-2.60 Bismuth-211 U -0.678 pCi/g Uncert: +/-2.70 TPU: +/-2.72 Bismuth-212 U 0.0358 pCi/g Uncert: +/-5.47 TPU: +/-5.47 Bismuth-214 U 0.378 pCi/g Uncert: +/-0.837 TPU: +/-0.855 Page 48 of 60 SDG: 586069

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 586069 Page 5 of 7 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 2290067 Cesium-134 U -0.0624 pCi/g Uncert: +/-0.514 TPU: +/-0.515 Cesium-137 157 158 pCi/g 101 (75%-125%) Uncert: +/-3.28 TPU: +/-13.9 Cobalt-60 75.0 73.3 pCi/g 97.7 (75%-125%) Uncert: +/-2.69 TPU: +/-7.70 Europium-152 U 0.0476 pCi/g Uncert: +/-1.31 TPU: +/-1.31 Europium-154 U 0.270 pCi/g Uncert: +/-0.739 TPU: +/-0.750 Lead-212 U -0.0987 pCi/g Uncert: +/-0.755 TPU: +/-0.756 Lead-214 U -0.258 pCi/g Uncert: +/-1.00 TPU: +/-1.01 Potassium-40 U -0.505 pCi/g Uncert: +/-1.81 TPU: +/-1.82 Thallium-208 U 0.00823 pCi/g Uncert: +/-0.423 TPU: +/-0.423 QC1205139815 MB Actinium-228 U -0.000911 pCi/g MXR1 07/18/2213:25 Uncert: +/-0.0713 TPU: +/-0.0713 Bismuth-211 U 0.0389 pCi/g Uncert: +/-0.0874 TPU: +/-0.0892 Bismuth-212 U 0.0103 pCi/g Uncert: +/-0.188 TPU: +/-0.188 Bismuth-214 U -0.0198 pCi/g Uncert: +/-0.0330 TPU: +/-0.0342 Cesium-134 U 0.0351 pCi/g Uncert: +/-0.0169 TPU: +/-0.0234 Cesium-137 U 0.00661 pCi/g Uncert: +/-0.0126 TPU: +/-0.0129 Page 49 of 60 SDG: 586069

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 586069 Page 6 of 7 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 2290067 Cobalt-60 U -0.0133 pCi/g Uncert: +/-0.0150 TPU: +/-0.0162 Europium-152 U -0.0158 pCi/g Uncert: +/-0.0355 TPU: +/-0.0362 Europium-154 U 0.0115 pCi/g Uncert: +/-0.0422 TPU: +/-0.0425 Lead-212 U 0.0137 pCi/g Uncert: +/-0.0464 TPU: +/-0.0468 Lead-214 U -0.00823 pCi/g Uncert: +/-0.0334 TPU: +/-0.0336 Potassium-40 U 0.0506 pCi/g Uncert: +/-0.294 TPU: +/-0.294 Thallium-208 U 0.0126 pCi/g Uncert: +/-0.0179 TPU: +/-0.0188 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 Page 50 of 60 SDG: 586069

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 586069 Page 7 of 7 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time 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 51 of 60 SDG: 586069

Page 52 of 60 SDG: 586069

                           .*~~

ZIONSOL(;TJONSw: ZS-WM-131 M~~~ RevisionO Information Use Sample ID Matrix Sample Attachment l - Chain-of-Custodv Sample Container Form

                                                                                                                                       &,mp!< Date 5flo0(o'1 Type                                                                                  Sample       Analysis Type Vol                                                                                                     PreseIYative                Remarks Unit      Type                 Qty                           Time                                                                       I LJ-l 2102A-FSGS-20l-SS SOIL        SOIL         850.7]       grams       NIA                 I      07/05/2022             0845        Gamma Spec             NIA                   See comments LJ-12102A -FSGS-202-SS SOJL        SOIL        850.21        grams      NIA               I         07/05/2022             0848       Gamm a Spec             NIA                  See comm¢nts l.l-12 l02A -FSGS-203-SS    SOJL        SOIL        850.71        grams      NIA              I          07/05/2022            0853        Gamma Spec             NIA                   Sec comments
                             !.1-121 02A -FSGS-204-SS     SOJL        SOIL        850.78       grams       NIA              I          07/05/2022            0855        Gamma Spec             NIA                   See commentS LI-12102A -FSGS-205-SS SOIL        SOIL        850. 71       grams      NIA            I            07/05/2022             090]       GammaSpcc              NIA                   See comments LI-l2 102A -F(}GS-20!\-SS SOIL        SOIL        850.71        grams      NIA           I             07/0512022          0903          Gamma Spec             NIA                   See comments LJ-I2102A -FSGS-206-SS      SOIL       SOJL        850.70         grams      NIA           I             07/05/2012          0918          GammaSpec              NIA                   See comments LJ-12102A-FSGS-207-SS        SOIL       SOIL        850.72        grams LaborBIOI)':                                                                 NIA         J        07105/2022 Date Submitted To Lab:                                                                0921      Gamma Spec                NIA                    See comments GEL Laboratorie<. LLC                                                                  Ship Container No.:                  Cooler Temperature:

2040 S.avago Road Airbill Number: HA Charleston, SC 29407 or;/1J./2oii. tM 7773 5'1-71 i;l;~rr ~,ck~rt Relinquished by: Dato (tttm/dd/yyyy): 07/!JJ;..op 1530 Date'(mm/dd/yyyy): Time: Time: Received by: Fed0l / A Date: (mm/dd/yyyy): 07 /tJ /J..OJ-l Time:

                                                                                                                                                                                                                }530 78(3

7~

t:f :'I'-<' ( Dme07Ji:nio L'-' Time : Comments: Gamma Spec indloes Cs13

\.

O' (o D 7, Csl34, Co60 K-40, Bi-211/212/214, Pb-21~14: Ac-228, Tl-200 as per June 23, 2021 e-mail and follow-up phone caHs 1 _o f_ 3_

Page 53 of 60 SDG: 586069

-~

ZS-WM-131 llONSOLUTJONSLLc ,\atff lu,~~ .., RevisionO fnfonnation Use Sample 1D Matrix Sample Anfil:hmeat 1 - Chain-of-Custod'l form Sample Container 58t.o oeo, Type Sample Dale Sample Analysis Type Preservative Remarks Vol Unit Type Qty Time Ll-12102A-FSGS-208-SS SOIL son, 850.71 grams NIA l 07/05/2022 0926 GammaSpe<: NIA See comment-, Ll-l2J 02A -FSGS-209-SS SOIL SOIL 8$0,66 grams NIA I 07/05/2022 0930 GammaSpec NIA See comments L 1-12!02A -FSGS-210-SS SOIL SOIL 850.71 grams NIA I 07/05/2022 0920 Gamma Spec NIA See comments l,1-12102A-FSGS-2J0-SB SOIL SOIL 850.78 grams NIA I 07/0S/ ZOll 0924 Gamma Spec NIA See comments Ll-12102A-FSGS-211-SS SOIL SOIL 850.71 grams NIA I 07/05/2022 0926 GammaSpcc NIA See comments l.l-l21 02A -FSGS.Zl !-SB SOIL SOIL 8511.90 grams NIA I 07/05/2022 0935 Gamma Spec NIA See comments Lf-12l02A-FSGS*212~5S SOIL SOIL 850. 75 grams NIA I 07/05/2022 0937 Gamma Spec NIA See comments Ll*l2102A-FSGS-213-SS SOIL SOIL 850.88 grams NIA Laboratory: l 07/05/2022 0939 Gamma Spec Dille Subm;n,;d To Lab: NIA See comments GEL Laboratories, LLC Ship Container No.: Cooler Temperature: Airl>il!Number: 2040 S,n,age Rcrod ti& NA Charleston, SC 29407 07/f'J../ZOJ.2., Relinquished by: Date (mm/ddiyyyy): Time: 7773 f/?7 7tB

                            ~,1o"~ PR,'Jru-.{-

Relinquished by: ()'7/j 11.2.b,'l.J_ Date (mm/d&lyyyy): J.530 Received bv: E<d£x /'"\ Date: fmmtd<V;m): (}17/1J/1 0 a. Time:

                                                                                                                                                                                                        ;;-.30 Time:

Comments: Gamma Spec includes Cs137, Cs134

                                                                     , CoOO
                                                                                                                 ;;;JfSP K-40, Bi-211/212/214, Pb-2 1~~. Ac~228, Tl-208 Date: (mmldblmyJ:

01/ Jtf( lot :i. Time: QC (oo as per June 23, 2021 e-mail and follow-up phone calls _2 _o f_3 _

Page 54 of 60 SDG: 586069

-~

ZlONSOWTIONSuc ZS-WM-131

                                      >nl:Mrijf~~                                                                                                                                                                                    Rev isio n 0

Information Use Sample ID Matrix Sample AttachmentJ - Ctuiin-of..Cust0.9.:'lfo Sample Container nn S f tooto4 Type Sample Om Sample Analysis Type Yo! Preservative Remarks Unit Type Qty Time Ll-12102A-FSGS-214-SS SOil SOIL 850.71 grams NIA I 07/05/2022 0942 Gamma Spec NIA See comments Li-12102A -FSGS-215-SS SOil SOIL 850.74 grams NIA I 07/05/2022 0945 Gamma Spec NIA See comments Ll-12I02A-FSGS-216-SS SOIL SOIL 850.74 grams NIA I 0710512022 0948 Gamma Spec NIA Ll-12J02A -FSGS-217-SS Seo comments SOIL SOIL 850.86 grams NIA I 07/05/2022 0951 Gamma Spec NIA l.1-12i02A -FSGS-218-SS Sec comments sort SOIL 850.72 grams NIA I 0710512022 0954 Gamma Spec NIA See comments Laboratory:

Dall: Submitted To Lab: GEL Laboratories, LLC Ship Conrainer No.: Cooler Temperature:

                                                                             /f J../ 1-0J.-J-.

2040 Savage Road Airbi!I Number:

                                                                                                                 !U, 07                                                                         /:!A Charleston, SC 29407 Relinguished by:

Date (mm/ddfm,y): Time: 1773 sm 1sr.5

                           ~i<harJ YrRickut                    01 /rJ.h..op...               !530 Received by:

f rd £<1. I Date: (mm'ddryyyy): Time: Relinquished by: Dail (nu&ddlyyyy l: 07/!1/Jfn'l- /530 Time: Ll -- 1} -- Rec cive 7 .,_Date: (mmlddfjyyy): Time: Comments: Gamma Spec indudes Csl37

                                                             , Cs134, Co60
                                                                                                                    ~        *~                  l                  07/14/ U>L'2                           Cf? OD K-40, Bi-211/212/214, Pb-212/214,            4.2,J. Tl-208 as~ June 23, 2021 e-mailandfoffow-up phone calls

___ ___ Lof _3_

SAMPLE RECEIPT & REVIEW FORM SDG/AR/COC/Work Order: Date Received: Courier Other Carrier and Tracking Number Suspected Hazard Information ~ .;_ ,;,If Net Counrs > lOOcpm on sample~ not m,u'ked "radioacti\'e", cnn!act the Radiation S*-1fety Group for ftu1her lnve!>figation. Hazard Class Shipped: UN#: - A)Shi d as a DOT Hazardous' If UN2910, ls the Radioactive Shipment Survey Compliant? Yes_ No_ B) Did the client designate the samples are to he COC notation or radioactive stickers on contuinern equal client desi!,'Tlation. received .l!i radioactive'! r""" C) Did the RSO classify the samples as (Observed Cou111s - Area Background Counts): _..,,..,e;.:_,.<'-*'JI" rudioaclive'? Rad 2 Rad 3 DJ Did the clienr desi are .sam lcs are hazardous? If Dor Eis yes, select Hazards below, PCB's Flammable Foreign Soil RCRA Asbestos Beryllium Other: , E) Did the RSO identify ossihle hazards? Sample Receipt Criteria Comments/Qualifiers (Required for Non-Confomling Items) Shipping comaincrs received intact and Circle- Applicable: Seals broken Da1m1gcd container Leaking container Other (describe) scaled? Chain of custody documents included Circk Applicable: Client contnctcd nnd pf<Hidcd COC COC created opon receipt 2 with shipment'? Preservation Mi:thoJ: Wet kl!' kc Packs D1y ice t! O!hcr: 3 Smnples requiring cold preservation *all temperatures are rccor<lcll in Celsius TEMP: within (0 < 6 deg, C)?* Daily check performed and passed on IR Temperature Device Serial #:._-'lF,_*-~...,,..,,._,1=.,,,, 4 Secondary Temperature Device Setf5i # (If Applicable): temperature gun? Circle Applic.1hlc: Sc:tls hrokcn Damaged conrni.ncr Leaking container Other (describe) 5 Sample containers intact and scaled? Samples requiring chemical preservation Sample ID':- nnd Cont.tlncrs Affected: 6 at proper pH? ff Preservation added, Lo1#: If Yes, are Encores or Soil Kits present for solids? Yes_ No_ NA_(lf yes, take 10 VO/\ Freezer) Do liquid VOA vials contain acid preservation? Yes_ No_ NA_(lfunknown, select No) Do any samples require Volatile 7 Are liquid VOA vials free ofheadspace? Yes_ No_ NA_ Analysis? Sample fD's and containers alfoc1cd:

                                                                                !D'.s and tests affected:

8 Samples received within holding time? Sample !D's on COC match !D's on ID'::; unJ cunr.iiners .1ffecte<l: 9 bottles? Date & time on COC match date & time Circle Applicable: No dates on containers No times on containers COC missing info Other (dtsctibe) lO on bottles? Number of containers received match Circle Applicable: No contoincr count on COC Other {describe) 11 number indicated on COC? Are sample containers identifiable as 2 l GEL rovided b use of GEL labels? COC form is properly signed in Not relinquished Other (describe) 13 relinquished/receiv ed :rections0 Comments (Use Continuation Form if needed): 1\,/ I (. O'-- Page _ _ of _ _ GL-CHL-SR-001 Rev 7 Page 55 of 60 SDG: 586069

List of current GEL Certifications as of 20 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 56 of 60 SDG: 586069

Radiochemistry Technical Case Narrative Zion Solutions SDG #: 586069 Product: Dry Weight Preparation Method: Dry Soil Prep Preparation Procedure: GL-RAD-A-021 REV# 24 Preparation Batch: 2289905 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 586069001 L1-12102A-FSGS-201-SS 586069002 L1-12102A-FSGS-202-SS 586069003 L1-12102A-FSGS-203-SS 586069004 L1-12102A-FSGS-204-SS 586069005 L1-12102A-FSGS-205-SS 586069006 L1-12102A-FQGS-205-SS 586069007 L1-12102A-FSGS-206-SS 586069008 L1-12102A-FSGS-207-SS 586069009 L1-12102A-FSGS-208-SS 586069010 L1-12102A-FSGS-209-SS 586069011 L1-12102A-FSGS-210-SS 586069012 L1-12102A-FSGS-210-SB 586069013 L1-12102A-FSGS-211-SS 586069014 L1-12102A-FSGS-211-SB 586069015 L1-12102A-FSGS-212-SS 586069016 L1-12102A-FSGS-213-SS 586069017 L1-12102A-FSGS-214-SS 586069018 L1-12102A-FSGS-215-SS 586069019 L1-12102A-FSGS-216-SS 586069020 L1-12102A-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: Dry Weight Preparation Method: Dry Soil Prep Preparation Procedure: GL-RAD-A-021 REV# 24 Preparation Batch: 2289907 Page 57 of 60 SDG: 586069

The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 586069021 L1-12102A-FSGS-218-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: 2290065 Preparation Method: Dry Soil Prep Preparation Procedure: GL-RAD-A-021 REV# 24 Preparation Batch: 2289905 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 586069001 L1-12102A-FSGS-201-SS 586069002 L1-12102A-FSGS-202-SS 586069003 L1-12102A-FSGS-203-SS 586069004 L1-12102A-FSGS-204-SS 586069005 L1-12102A-FSGS-205-SS 586069006 L1-12102A-FQGS-205-SS 586069007 L1-12102A-FSGS-206-SS 586069008 L1-12102A-FSGS-207-SS 586069009 L1-12102A-FSGS-208-SS 586069010 L1-12102A-FSGS-209-SS 586069011 L1-12102A-FSGS-210-SS 586069012 L1-12102A-FSGS-210-SB 586069013 L1-12102A-FSGS-211-SS 586069014 L1-12102A-FSGS-211-SB 586069015 L1-12102A-FSGS-212-SS 586069016 L1-12102A-FSGS-213-SS 586069017 L1-12102A-FSGS-214-SS 586069018 L1-12102A-FSGS-215-SS 586069019 L1-12102A-FSGS-216-SS 586069020 L1-12102A-FSGS-217-SS 1205139809 Method Blank (MB) 1205139810 586069001(L1-12102A-FSGS-201-SS) Sample Duplicate (DUP) 1205139811 Laboratory Control Sample (LCS) The samples in this SDG were analyzed on a "dry weight" basis. Page 58 of 60 SDG: 586069

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 due Bismuth-211 586069002 L1-12102A-FSGS-202-SS to high counting uncertainty. Bismuth-211 586069015 L1-12102A-FSGS-212-SS Bismuth-211 586069016 L1-12102A-FSGS-213-SS Bismuth-211 586069017 L1-12102A-FSGS-214-SS Bismuth-211 586069020 L1-12102A-FSGS-217-SS Bismuth-211 1205139810 L1-12102A-FSGS-201-SS(586069001DUP) Thallium-208 586069011 L1-12102A-FSGS-210-SS Results are considered a false UI Bismuth-211 586069001 L1-12102A-FSGS-201-SS positive due to low abundance. Bismuth-211 586069003 L1-12102A-FSGS-203-SS Bismuth-211 586069004 L1-12102A-FSGS-204-SS Bismuth-211 586069006 L1-12102A-FQGS-205-SS Bismuth-211 586069007 L1-12102A-FSGS-206-SS Bismuth-211 586069009 L1-12102A-FSGS-208-SS Bismuth-211 586069010 L1-12102A-FSGS-209-SS Bismuth-211 586069012 L1-12102A-FSGS-210-SB Bismuth-211 586069014 L1-12102A-FSGS-211-SB Bismuth-211 586069018 L1-12102A-FSGS-215-SS Bismuth-211 586069019 L1-12102A-FSGS-216-SS Page 59 of 60 SDG: 586069

Cesium-134 586069002 L1-12102A-FSGS-202-SS Cesium-134 586069017 L1-12102A-FSGS-214-SS 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: 2290067 Preparation Method: Dry Soil Prep Preparation Procedure: GL-RAD-A-021 REV# 24 Preparation Batch: 2289907 The following samples were analyzed using the above methods and analytical procedure(s). GEL Sample ID# Client Sample Identification 586069021 L1-12102A-FSGS-218-SS 1205139815 Method Blank (MB) 1205139816 586069021(L1-12102A-FSGS-218-SS) Sample Duplicate (DUP) 1205139817 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-211 586069021 L1-12102A-FSGS-218-SS due to low abundance. Bismuth-211 1205139816 L1-12102A-FSGS-218-SS(586069021DUP) 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 60 of 60 SDG: 586069

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

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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

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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

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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

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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

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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

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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

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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

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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 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

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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 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

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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

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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

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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}}

ML22279A987

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