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Restoration Project, FSS Final Report - Phase 1. FSS Release Record, Northeast Corner of Exclusion Area Survey Unit 10213A
	ML18331A006
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Site:	Zion File:ZionSolutions icon.png
Issue date:	06/14/2018
From:	Yetter R; ZionSolutions
To:	; Office of Nuclear Material Safety and Safeguards
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ML18331A015	List: ML18331A003; ML18331A004; ML18331A005; ML18331A006; ML18331A007; ML18331A008; ML18331A009; ML18331A010; ML18331A011; ML18331A012; ML18331A013; ZS-2018-0093, Submittal of Final Status Survey (FSS) Final Report - Phase 1;
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ZION STATION RESTORATION PROJECT FINAL STATUS SURVEY RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A

FSS RELEASE RECORD ~

NORTHEAST CORNER OF EXCLUSION AREA =ZlONSOLUTIONSuc=

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SURVEY UNIT 10213A PREPARED BY /DATE:

REVIEWED BY/ DATE:

APPROVED BY I DATE:

[1]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A TABLE OF CONTENTS

1. EXECUTIVE

SUMMARY

..................................................................................................... 5

2. SURVEY UNIT DESCRIPTION ........................................................................................... 5

3. CLASSIFICATION BASIS .................................................................................................... 6

4. DATA QUALITY OBJECTIVES (DQO) ............................................................................. 8

5. SURVEY DESIGN ................................................................................................................ 12

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

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

8. QUALITY CONTROL ......................................................................................................... 26

9. INVESTIGATIONS AND RESULTS ................................................................................. 26

10. REMEDIATION AND RESULTS ................................................................................... 26

11. CHANGES FROM THE FINAL STATUS SURVEY PLAN ........................................ 27

12. DATA QUALITY ASSESSMENT (DQA) ...................................................................... 27

13. ANOMALIES ..................................................................................................................... 27

14. CONCLUSION .................................................................................................................. 28

15. REFERENCES ................................................................................................................... 28

16. ATTACHMENTS .............................................................................................................. 29 ATTACHMENT 1 - FIGURES AND MAPS ................................................................................... 30 ATTACHMENT 2 - SCAN DATA ................................................................................................ 34 ATTACHMENT 3 - SAMPLE ANALYTICAL REPORTS.................................................................. 47 ATTACHMENT 4 - CONSULTATION TRIGGERS FOR RESIDENTIAL SOIL CONCENTRATION ..... 188 ATTACHMENT 5 - QC SAMPLE ASSESSMENT ......................................................................... 190 ATTACHMENT 6 - GRAPHICAL PRESENTATIONS .................................................................... 192 ATTACHMENT 7 - EBERLINE ANALYTICAL REPORTS ............................................................. 198

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A List of Tables Table 1 - Statistical Quantities for Cs-137 and Co-60 from the 2012 Characterization Survey ...... 7 Table 2 - Dose Significant Radionuclides and Mixture .................................................................... 9 Table 3 - Base Case DCGLs for Surface Soils (BcDCGLSS) ........................................................ 10 Table 4 - Base Case DCGLs for Subsurface Soils (BcDCGLSB) .................................................. 10 Table 5 - Operational DCGLs for Surface Soils (OpDCGLSS) ..................................................... 11 Table 6 - Operational DCGLs for Subsurface Soils (OpDCGLSB) ............................................... 11 Table 7 - Surrogate Ratios .............................................................................................................. 13 Table 8 - Action Levels for Survey Unit 10213A........................................................................... 14 Table 9 - Systematic and QC Sample Measurement Locations ...................................................... 16 Table 10 - Investigational Sample Measurement Locations ........................................................... 16 Table 11 - Investigation Levels....................................................................................................... 17 Table 12 - Synopsis of Survey Design ............................................................................................ 18 Table 13 - Synopsis of Scan Results ............................................................................................... 21 Table 14 - Summary of Gamma Spectroscopy Results for Surface Soil Samples Comprising the Statistical Sample Population .............................................................. 22 Table 15 - Basic Statistical Properties of Systematic Sample Population ...................................... 22 Table 16 - Off-Site Analysis Results (Eberline Analytical) for Sample ID #s L3-10213AA-FRGS-003-SS-A and L3-10213AA-FIGS-017-SS-A .................. 23 Table 17 - Summary of Gamma Spectroscopy Results for Investigational Surface Soil Samples 24 Table 18 - Summary of Gamma Spectroscopy Results for QC Surface Soil Sample .................... 24 Table 19 - Sum-of-Fractions for Individual Surface Soil Samples (Systematic and QC) .............. 25 List of Figures Figure 1 - Survey Unit 10213A Boundary ....................................................................................................31 Figure 2 - Survey Unit 10213A Characterization Survey Sample Locations ...............................................32 Figure 3 - Survey Unit 10213A Final Status Survey ....................................................................................33

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A LIST OF ACRONYMS AND ABBREVIATIONS DQO Data Quality Objective DCGL Derived Concentration Guideline Level FSS Final Status Survey GPS Global Positioning System LTP License Termination Plan MARSSIM Multi-Agency Radiation Survey and Site Investigation Manual MDCR Minimal Detectable Count Rate NAD North American Datum NaI Sodium Iodide OpDCGL Operational Derived Concentration Guideline Level QC Quality Control RE Radiological Engineer ROC Radionuclides of Concern SOF Sum-of-Fraction VCC Vertical Concrete Cask ZSRP Zion Station Restoration Project

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A

1. EXECUTIVE

SUMMARY

This Final Status Survey (FSS) Release Record for survey unit 10213A, Northeast Corner of Exclusion Area, has been generated for the Zion Station Restoration Project (ZSRP) in accordance with ZionSolutions procedure ZS-LT-300-001-005, Final Status Survey Data Reporting (Reference 1) and satisfies the requirements of Section 5.11 of the Zion Station Restoration Project License Termination Plan (LTP) (Reference 2).

A Final Status Survey (FSS) package (L3-10213A-F) was developed in accordance with ZionSolutions procedure ZS-LT-300-001-001, Final Status Survey Package Development (Reference 3), the ZSRP LTP, and with 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 3. A 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. As a systematic sample population, fourteen (14) randomly located surface soil samples were acquired from the survey unit. In addition, surface scanning was performed on 5% of the total surface area in the survey unit. The analytical results for all soil samples taken in survey unit 10213A indicate that the Sum-of-Fraction (SOF) for each sample, considering the concentration of all applicable Radionuclides of Concern (ROC), either by direct measurement or by inference, is less than 0.1068 when applying the respective Operational Derived Concentration Guideline Levels (OpDCGL). Therefore, the null hypothesis is rejected and survey unit 10213A is acceptable for unrestricted release.

2. SURVEY UNIT DESCRIPTION Northeast Corner of Exclusion Area, survey unit 10213A, is an impacted Class 3 open land survey unit. It is bounded by Shiloh Boulevard to the north. The area of the survey unit is 11,887 m2. The FSS was designed and performed to the previous area of the survey unit, which was 12,255 m2. A portion of the southwest corner of the survey unit was a major vehicle traffic area. To minimize the impact of vehicles driving over a portion of the survey unit after FSS was performed, the southwest corner (approximately 368 m 2 in area) was attributed to the adjacent survey unit which will be surveyed in a later phase of the project.

The topography of the survey unit is mainly flat with some small dips and depressions.

The soil is loam. The terrain consists of thick underbrush and trees. Solid physical items such as rocks, telephone poles, power lines, chain-link fencing, and jersey barriers are present in the area.

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A 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) 1927. The reference coordinates associated with this survey unit are denoted on Figure 1 located in Attachment 1.

SU10213A

3. CLASSIFICATION BASIS Survey unit 10213A was classified in accordance with ZionSolutions procedure ZS-LT-300-001-002, Survey Unit Classification (Reference 5).

Impacted Class 3 open land survey unit 10213A was originally identified as non-impacted by the Historical Site Assessment (HSA) (Reference 6). To accommodate anticipated future decommissioning activities, it was reclassified as a Class 3 open land survey unit on September 18, 2012. The HSA does not cite any processes and/or incidents involving the use and/or handling of radioactive material in this open land survey unit and an inspection of the survey unit did not identify any visual indications that there are any subsurface burial sites present in this area.

Characterization surveys were performed in this survey unit from September 21, 2012, through October 19, 2012. The survey design for this survey unit called for the acquisition of twenty-four (24) surface soil samples taken at systematic locations. The

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A survey design also required the acquisition of a subsurface soil sample to a depth of one-meter at each location where a surface soil sample was taken.

Three-thousand and sixty-four (3,064) square meters or approximately 25% of the total surface area in the survey unit was scanned using a Ludlum Model 2350-1 and a Model 44-10 NaI detector. For the area scanned, the average observed background in the survey unit was 5,822 cpm. The average observed scan measurement was 5,459 cpm with a maximum observed measurement of 9,798 cpm. Three (3) scan alarms were observed in this survey unit with the scan alarm set-point set at the MDCR plus background. The area was investigated by additional scans. The scan alarms were not reproduced.

Twenty-four (24) surface soil samples and two (2) QC split samples were acquired and analyzed by the on-site gamma spectroscopy system. Twenty-four (24) subsurface samples were taken to a depth of one-meter and analyzed by the on-site gamma spectroscopy system. Cs-137 was identified at concentrations greater than the MDC of the instrument in six (6) of the surface soil samples taken and two (2) of the subsurface soil samples taken. No other potential plant-derived radionuclides were positively identified.

The average Cs-137 concentration observed in the analysis of the surface soil samples was 0.17 pCi/g with a maximum observed concentration of 0.29 pCi/g. The average Cs-137 concentration observed in the analysis of the subsurface soil samples was 0.07 pCi/g with a maximum observed concentration of 0.08 pCi/g.

The locations of scan areas and surface soil samples taken during characterization in survey unit 10213A are illustrated on Figure 2 in Attachment 1. A summary of the analyses results for the surface soil samples taken during site characterization are presented in Table 1.

Table 1 - Statistical Quantities for Cs-137 and Co-60 from the 2012 Characterization Survey Cs-137 Co-60 Statistical Quantities (pCi/g) (pCi/g)

Minimum Value : 9.00E-02 < 1.00E-02 Maximum Value : 2.90E-01 < 8.00E-02 Mean : 1.70E-01 < 5.00E-02 Median : 1.00E-01 < 5.00E-02 Standard Deviation : 0.08 N/A A Radiological Engineer (RE) performed a visual inspection and walk-down of the survey unit on 04/11/2016 prior to performing FSS. The purpose of the walk-down was to assess the physical condition of the survey unit, evaluate access points and travel paths and

[7]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A 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.

Based upon completion of Survey Unit Classification Basis for final classification, which included a review of the historical information, the results of the Characterization Survey data and, completion of a final Survey Unit Classification Worksheet, it was concluded that there was a low probability for the presence of residual radioactivity in soils in concentrations greater than 50% of the Operational DCGLs, justifying a final survey unit classification of Class 3.

4. DATA QUALITY OBJECTIVES (DQO)

Final Status Survey 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 ZSRP LTP in accordance with MARSSIM. The appropriate design for a given survey will be developed using the DQO process as outlined in Appendix D of MARSSIM. A summary of seven steps of the DQO process are outlined as follows.

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 10213A did 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 TSD 11-001, Potential Radionuclides of Concern during the Decommissioning of Zion Station (Reference 7) established the basis for an initial suite of potential ROC for the decommissioning of the Zion Nuclear Power Station (ZNPS).

LTP Chapter 2 provides detailed characterization data that describes the results of surveys taken of soils. Surface and subsurface soil samples were taken in each impacted open land

[8]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A survey units and analyzed for the presence of plant-derived radionuclides. The results of surface and subsurface soil characterization in the impacted area surrounding ZNPS indicate that there is minimal residual radioactivity in soil. Consequently, due to the absence of any significant source term in soil, the suite of ROC and radionuclide mixture derived for non-activated concrete was considered as a reasonably conservative mixture to apply to soils for FSS planning and implementation.

LTP Chapter 6, section 6.5.2 discusses the process used to derive the ROC for the decommissioning of ZNPS, including the elimination of insignificant dose contributors (IC) from the initial suite. Based upon the analysis of the mixture, it was determined that Co-60, Ni-63, Sr-90, Cs-134 and Cs-137 accounted for 99.5% of all dose in the non-activated contaminated concrete mixes.

Table 2 presents the ROC for the decommissioning of soils at ZNPS and the normalized mixture fractions based on the radionuclide mixture.

Table 2 - Dose Significant Radionuclides and Mixture

% of Total Activity Radionuclide (normalized)(1)(2)

Co-60 0.92%

Cs-134 0.01%

Cs-137 75.32%

Ni-63 23.71%

Sr-90 0.05%

(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 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

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A 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 8) 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 Base Case Soil DCGLs in this Release Record).

At ZNPS, compliance is demonstrated through the summation of dose from four distinct source terms for the end-state (basements, soils, buried pipe and groundwater). Basements are comprised of the summation of four structural source terms (surfaces, embedded pipe, penetrations and fill). When applied to soil, the DCGLs are expressed in units of activity per unit of mass (pCi/g). The unity rule is applied when there is more than one ROC.

The measurement results for each singular ROC present in the mixture are compared against their respective DCGL to derive a dose fraction.

The surface and subsurface soil Base Case DCGLs for the unrestricted release of open land survey units are provided in Table 3 and Table 4, respectively. The IC dose percentage of 10% was used to adjust the DCGLs in soils to account for the dose from the eliminated IC radionuclides.

Table 3 - 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 4 - 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

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A 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/year or less after all FSS is completed, the Base Case DCGLs are reduced based on an expected, or a priori, fraction of the 25 mrem/year dose limit from each source term. The reduced DCGLs, or Operational DCGLs can be related to the Base Case DCGLs as an expected fraction of dose based on an a priori assessment of what the expected dose should be based on the results of site characterization, process knowledge and the extent of planned remediation. The Operational DCGL is then used as the DCGL for the FSS design of the survey unit (calculation of surrogate DCGLs, investigations levels, etc.). Details of the Operational DCGLs 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 9).

The Operational DCGLs for the FSS of surface and subsurface soils are presented in Table 5 and Table 6, respectively.

Table 5 - 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 6 - 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

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Instrument DQOs included a verification of the ability of the survey instrument to detect the radiation(s) of interest relative to the Operational DCGL. Survey instrument response checks were required prior to issuance and after the instrument had been used. Control and accountability of survey instruments was required to assure 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 minimum acceptable MDC for measurements obtained using field instruments was 50 percent of the applicable Operational DCGL.

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 FSS plan uses an integrated sample design that combines scanning surveys and sampling which can be either random or judgmental.

The DQO process determined that Co-60, Ni-63, Sr-90, Cs-134 and Cs-137 would be the ROC in survey unit 10213A. During FSS, concentrations for Hard-to-Detect (HTD) ROC Ni-63 and Sr-90 are inferred using a surrogate approach. Cs-137 is the principle surrogate radionuclide for Sr-90 and Co-60 is the principle 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 (Reference 10) and are presented in Table 7. The maximum ratios will be used in the surrogate calculations during FSS unless area specific ratios are determined by continuing characterization.

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Table 7 - 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 10213A, the surrogate Operational DCGLs for Co-60 and Cs-137 were computed based on the maximum ratios from Table 7.

The equation for calculating a surrogate DCGL is as follows:

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 Operational DCGLs presented in Table 5 and the maximum ratios from Table 7, the following surrogate calculations were performed:

Equation 2 1

(137) = = 3.622 /

1 0.002

[(3.630 )+( )]

(137) 3.095(90)

The surrogate Operational DCGL that was used for Cs-137 in this survey unit for direct comparison of 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)

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A The surrogate Operational DCGL that was used for Co-60 in this survey unit for direct comparison of sample results to demonstrate compliance is 0.898 pCi/g.

The action level for investigation in a Class 3 open land survey unit is 50% of the Operational DCGL. The surrogate DCGL for Co-60 while inferring Ni-63 is 0.898 pCi/g, and the surrogate DCGL for Cs-137 while inferring Sr-90 is 3.622 pCi/g. Using the normalized mixture for gamma emitting ROC from Table 2, the surrogate adjusted gamma DCGL is then calculated as follows:

1

() = = 3.494 /

0.012 0.00001 0.988

[(0.898 ) + (1.733 ) + (3.622 )]

(60) 134 (63)

The surrogate adjusted gamma DCGL equals 3.494 pCi/g. The action levels for survey unit 10213A are based on 50% of the DCGL and are presented in Table 8.

Table 8 - Action Levels for Survey Unit 10213A ROC DCGL (pCi/g)

(1)

Co-60 0.449 Cs-134 (2) 0.867 Cs-137 (3) 1.811 Gross Gamma (4) 1.747 (1) Based on 50% of surrogate adjusted DCGL of 0.898 pCi/g for Co-60 while inferring Ni-63 (2) Based on 50% of Operational DCGL (3) Based on 50% of surrogate adjusted DCGL of 3.622 pCi/g for Cs-137 while inferring Sr-90 (4) Based on 50% of normalized surrogate adjusted DCGLs of 3.494 pCi/g for gamma emitting ROC 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 Elevated Measurement Comparison (EMC) did not apply to this survey unit since it is a Class 3 survey unit and discrete, elevated areas of contamination were not expected.

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 Boundary 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

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A used for survey design. The optimal value for / should range between 1 and 3. The largest value the / can have is 3. If the / exceeds 3, then the value of 3 will be used for /. The / for survey unit 10213A, based on characterization data for Cs-137, was calculated as follows:

Equation 4

/ = 0.5/0.02 = 25 As the calculated relative shift (25) was greater than 3, then a value of 3 was used as the adjusted /. 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 14.

A Prospective Power Curve was generated using COMPASS, a software package developed under the sponsorship of the United States Nuclear Regulatory Commission (USNRC) for implementation of the MARSSIM in support of the decommissioning license termination rule (10CFR20, Subpart E). The result of the COMPASS computer run showed adequate power for the survey design. The survey design specified fourteen (14) surface soil samples for non-parametric statistical testing.

As the survey unit was classified as Class 3, systematic sample locations were selected at random. The random locations of the systematic surface soil samples were selected using Visual Sample Plan (VSP), in accordance with ZS-LT-300-001-001. Input parameters included use of Bing or Google Maps aerial photographs and the random sampling tool set with a predetermined number (14) of sample points. These coordinates were integrated with a GPS to locate sample locations in the field. Sample measurement locations for the surface soil samples taken for systematic design are listed with the GPS coordinates in Table 9.

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 7). 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 7). If the derived ratio from the confirmatory samples exceeds the maximum ratios (see Table 7), then the area-specific ratios as determined by actual survey data will be used in lieu of the maximum ratios.

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Table 9 - Systematic and QC Sample Measurement Locations MEASUREMENT ID NORTHING EASTING L3-10213A-FRGS-001SS 642125.8577 343640.8578 L3-10213A-FRGS-002SS 642118.1129 343712.9794 L3-10213A-FRGS-003SS 642108.8191 343724.9997 L3-10213A-FRGS-004SS 642111.9171 343688.9389 L3-10213A-FRGS-005SS 642104.1722 343664.8983 L3-10213A-FRGS-006SS 642084.0357 343720.9929 L3-10213A-FRGS-007SS 642076.2909 343648.8713 L3-10213A-FRGS-008SS 642066.9971 343660.8916 L3-10213A-FRGS-009SS 642062.3502 343696.9524 L3-10213A-FRGS-010SS 642048.4095 343672.9118 L3-10213A-FRGS-011SS 642042.2136 343656.8848 L3-10213A-FRGS-012SS 642025.1750 343692.9456 L3-10213A-FRGS-013SS 642011.2343 343680.9253 L3-10213A-FRGS-014SS 642020.5281 343632.8443 L3-10213A-FQGS-007SS 642076.2909 343648.8713 Fourteen (14) surface soil samples were required for the non-parametric statistical test (sample size N = 14). In addition, two (2) investigational surface soil samples were collected to investigate scan alarms. In total, sixteen (16) surface soil samples were collected for the FSS of this survey unit. The Sample Measurement Locations for the judgmental and investigational surface soil samples and ISOCS measurement are listed with the GPS coordinates in Table 10.

Table 10 - Investigational Sample Measurement Locations MEASUREMENT ID NORTHING EASTING L3-10213A-FIGS-001SS 642011.236 343672.393 L3-10213A-FIGS-002SS 642012.605 343669.933 A map of the surface soil sample locations and the ISOCS measurement location are provided in Figure 3 in Attachment 1.

[16]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A The selection of two (2) soil sample met the requirement that 10% of the samples collected for the FSS of survey unit 10213A be analyzed for HTD ROC. Sample numbers L3-10213A-FRGS-006-SS-A and L3-10213A-FRGS-008-SS-A were selected based on exhibiting the highest concentration of Cs-137. Each selected sample was sent off-site (Eberline Analytical) for analysis of the HTD ROC as specified in LTP Chapter 5, section 5.1.

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 11) 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, L3-10213A-FQGS-007-SS was selected randomly for split sample analysis for the FSS of this survey unit.

LTP Chapter 5, section 5.6.4.4 and Table 5-24 specifies that for Class 3 survey units, judgmental (biased) surface scans will be performed on areas with the greatest potential of contamination. For open land areas, this may include surface drainage areas and collection points. The fraction of scanning coverage required for survey unit 10213A was determined during the DQO process with the total amount and location(s) based on the likelihood of finding elevated activity during FSS. Based on the HSA, the results of the characterization survey, and the operational use of this survey unit, fourteen (14) different scan areas representing 616 m2, or approximately 5% of the survey unit, of surface area was chosen at random. A map of the scan grid locations are provided in Figure 3.

For this Class 3 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 11.

Table 11 - Investigation Levels Classification Scan Investigation Levels Direct Investigation Levels

>Operational DCGL or >MDCscan if Class 3 >0.5 Operational DCGL MDCscan is greater than Operational DCGL Table 12 provides a synopsis of the survey design for survey unit 10213A.

[17]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Table 12 - Synopsis of Survey Design FEATURE DESIGN CRITERIA BASIS Survey Unit Land 12,255 m2 GPS measurements of area Area

= 0.02 UBGR = SOF of 1 LBGR = SOF of 0.5 Number of 14 (systematic) Type I error = 0.05 Measurements (N)

Type II error = 0.05

/ = 3 (adjusted)

MARSSIM Table 5.5 (LTP Chapter 5, section Grid Spacing Random 5.6.4.5.2)

Co 1.091 pCi/g Cs-134 - 1.733 pCi/g Operational DCGLs for DCGLs Cs-137 - 3.630 pCi/g Surface Soils, Ni 914.458 pCi/g (LTP Chapter 5, Table 5-7)

Sr 3.095 pCi/g Two (2) surface soil samples selected for HTD ROC Analysis (LTP Chapter 5, section 5.1)

HTD ROC analysis Soil Investigation

>0.5 Operational DCGL (LTP Chapter 5, Table 5-25)

Level Scan Survey Area Judgmental areal coverage, 616 m2 or ~5% areal coverage Coverage (LTP Chapter 5, Table 5-24) 1.747 pCi/g Scan Investigation (Based on 50% of normalized surrogate (LTP Chapter 5, Table 5-25)

Level adjusted DCGLs for gamma emitting ROC)

One (1) surface soil sample selected QC (LTP Chapter 5, section 5.9) randomly for split sample analysis

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A

6. SURVEY IMPLEMENTATION For survey unit 10213A, 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, section 5.7.1.6.2, no subsurface soil sample(s) will be taken as part of the survey design in Class 3 open land survey units. However, if during the performance of FSS, the analysis of a surface soil sample, or the results of a surface gamma scan indicates the potential presence of residual radioactivity at a concentration of 75% of the subsurface Operational DCGL, then a biased subsurface soil sample(s) would have been taken to the appropriate depth within the area of concern as part of the investigation. This threshold was not encountered during the FSS of survey unit 10213A. Consequently, no subsurface soil samples were collected during FSS.

In addition, LTP Chapter 5, section 5.1 states that if levels of residual gamma radioactivity in an individual soil sample exceed a SOF of 0.1, then the sample(s) will be analyzed for HTD ROC. This threshold was encountered during the FSS of survey unit 10213A and sample L3-10213A-FRGS-006-SS-A was sent off-site for HTD ROC analysis as a response.

FSS field activities were conducted under FSS Sample Plan L3-10213A-F. FSS Sample Plan L3-10213A-F included DQOs, survey design, detailed FSS instructions, job safety analysis, and related procedures for reference. 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 eight (8) 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 March 30, 2016 and concluding on April 19, 2016.

The fourteen (14) systematic surface soil sample locations were marked with flags based on GPS coordinates provided by VSP. Around each surface soil sample location, a 44 m2 scan area was marked out. A total of fourteen (14) different scan areas were established, constituting an areal scan coverage of 616 m2, or approximately 5% of the surface area in survey unit 10213A. Background was assessed in the survey unit and it was determined that, using an Ludlum 2350-1 paired with a Model 44-10 (2x 2) sodium iodide (NaI) detector, background ranged from 1,644 counts per minute (cpm) up to 3,120 cpm.

All designated scan areas as denoted on Figure 3 in Attachment 1 were scanned using a Ludlum 2350-1 paired with a Model 44-10 2x 2 NaI detector operated in the rate-meter

[19]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A mode and using audio response. The probe was positioned as close to the ground as possible and was moved at a scan speed of approximately 0.25 meters per second. In accordance with ZionSolutions TSD 11-004, Ludlum Model 44-10 Detector Sensitivity (Reference 12), scan MDC was sufficient to detect residual radioactivity at the action level (adjusted gross gamma DCGL of 1.747 pCi/g, which was based on 50% of the normalized surrogate adjusted Operational DCGLs for gamma emitting ROC). Complete scan results are provided in Attachment 2.

In accordance with FSS design, fourteen (14) surface soil samples were collected at random locations for the systematic sample population. As an investigation of scan alarms in scan area 13, two (2) surface soil samples were collected. The addition of the systematic and investigational samples results in a total of sixteen (16) surface soil samples collected for the FSS of this survey unit. Each surface soil sample consisted of 1 liter of soil. The sample media was sifted to remove stones and other media larger than 1 centimeter in diameter. All collected soil samples were controlled, transported, stored, and transferred to the on-site laboratory using Chain-of-Custody (CoC) process from ZionSolutions procedure ZS-LT-100-001-004, Sample Media Preparation (Reference 13).

Two (2) samples (L3-10213A-FRGS-006-SS-A and L3-10213A-FRGS-008-SS-A) were selected for HTD radionuclide analysis.

The implementation of survey specific QC measures included the collection of one (1) sample (L3-10213A-FQGS-007-SS) for split sample analysis.

7. SURVEY RESULTS The scan areas identified in the FSS plan were scanned for elevated radiation levels. No elevated measurement locations were identified by surface scan. Table 13 provides an overview of the scan results. Complete scan results are provided in Attachment 2.

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Table 13 - Synopsis of Scan Results Highest Logged Scan Action Level(1) # of Scan Reading Investigation Samples Area Alarms (cpm) (cpm)

GS001 2360 2423 None None GS002 2420 2423 None None GS003 2410 2423 None None GS004 2410 2423 None None GS005 2350 2423 None None GS006 2260 2573 None None GS007 2550 2573 None None GS008 2530 2573 None None GS009 2350 2573 None None GS010 2380 2886 None None GS011 2390 2886 None None GS012 2630 3311 None None GS013 4600 2573 8 2 GS014 3560 3584 None None GS015 2980 2991 None None GS016 3690 4193 None None

1) The action level is based on the measurement Minimum Detectable Count Rate (MDCR) plus background in accordance with the FSS plan The on-site laboratory analyzed the fourteen (14) soil samples taken for non-parametric statistical testing using the on-site gamma spectroscopy system. A summary of the fourteen (14) samples collected for non-parametric statistical testing results is provided in Table 14. Gamma spectroscopy results (summarized in Table 14) revealed five (5) samples above MDC for Cs-137 and no samples above MDC for Co-60 or Cs-134. The concentration for Ni-63 and Sr-90 are inferred based on the maximum ratios as specified in Table 7. 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 at within the vicinity of the ZNPS as presented in ZionSolutions TSD 13-004, Examination of Cs-137 Global Fallout in Soils at Zion Station (Reference 14). The complete gamma spectroscopy reports are presented in Attachment 3. The basic statistics for the systematic sample population is summarized in Table 15.

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Table 14 - Summary of Gamma Spectroscopy Results for Surface Soil Samples Comprising the Statistical Sample Population Co-60 Cs-134 Cs-137 Ni-63 Sr-90 MEASUREMENT ID (pCi/g) (pCi/g) (pCi/g) (pCi/g) (pCi/g)

L3-10213A-FRGS-001SS 2.34E-02 1.86E-03 2.36E-02 4.22E+00 4.72E-05 L3-10213A-FRGS-002SS 0.00E+00 1.30E-02 0.00E+00 0.00E+00 0.00E+00 L3-10213A-FRGS-003SS 0.00E+00 1.79E-03 4.90E-02 0.00E+00 9.80E-05 L3-10213A-FRGS-004SS 1.04E-02 4.16E-03 1.85E-02 1.88E+00 3.70E-05 L3-10213A-FRGS-005SS 9.25E-03 1.11E-02 1.26E-01 1.67E+00 2.52E-04 L3-10213A-FRGS-006SS 1.85E-02 0.00E+00 3.12E-01 3.34E+00 6.24E-04 L3-10213A-FRGS-007SS 0.00E+00 0.00E+00 7.43E-02 0.00E+00 1.49E-04 L3-10213A-FRGS-008SS 0.00E+00 1.32E-03 3.49E-01 0.00E+00 6.98E-04 L3-10213A-FRGS-009SS 5.32E-03 0.00E+00 1.84E-01 9.60E-01 3.68E-04 L3-10213A-FRGS-010SS 2.49E-02 8.53E-03 6.44E-02 4.49E+00 1.29E-04 L3-10213A-FRGS-011SS 1.12E-02 1.64E-03 1.79E-01 2.02E+00 3.58E-04 L3-10213A-FRGS-012SS 1.16E-03 1.00E-02 8.12E-02 2.09E-01 1.62E-04 L3-10213A-FRGS-013SS 0.00E+00 2.41E-02 2.43E-02 0.00E+00 4.86E-05 L3-10213A-FRGS-014SS 0.00E+00 1.06E-02 5.31E-02 0.00E+00 1.06E-04 Table 15 - 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 7.44E-03 3.24E-03 2.49E-02 0.00E+00 0.00913 4.26 1.75E-03 4.36E-02 Cs-134 6.29E-03 3.01E-03 2.41E-02 0.00E+00 0.00697 6.77 9.30E-04 2.32E-02 Cs-137 1.10E-01 6.94E-02 3.49E-01 0.00E+00 0.10914 14.18 7.75E-03 1.94E-01 Ni-63 1.34E+00 5.85E-01 4.49E+00 0.00E+00 1.64760 3572.1 3.76E-04 9.39E-03 Sr-90 2.20E-04 1.39E-04 6.98E-04 0.00E+00 0.00022 12.09 1.82E-05 4.54E-04 The off-site laboratory, Eberline Analytical, processed the two (2) samples selected for HTD ROC analysis as specified in the survey design. Sample numbers L3-10213A-FRGS-006-SS-A and L3-10213A-FRGS-008-SS-A were selected. Only HTD radionuclides included as ROC (Ni-63 and Sr-90 for soils) were included in the analysis.

All analyses met the required MDC. LTP Chapter 5, section 5.1 states that for soil samples or concrete cores with positive results for both a HTD ROC and the corresponding surrogate radionuclide (Cs-137 or Co-60), the HTD to surrogate ratio will

[22]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A be derived. This threshold was not encountered during the FSS of survey unit 10213A.

Ni-63 and Cs-137 were positively detected at concentrations greater than MDC for both samples. The results are provided in Table 16.

Table 16 - Off-Site Analysis Results (Eberline Analytical) for Sample ID #s L3-10213AA-FRGS-003-SS-A and L3-10213AA-FIGS-017-SS-A Sample # L3-10213A-FRGS-006-SS-A Result Uncertainty MDC ROC >MDC (pCi/g) (pCi/g) (pCi/g)

Co-60 4.93E-02 4.81E-02 5.54E-02 No Cs-134 1.42E-02 3.07E-02 9.48E-02 No Cs-137 3.42E-01 7.70E-02 9.48E-02 No Ni-63 2.91E-01 7.05E-01 1.20E+00 No Sr-90 4.41E-01 2.17E-01 4.14E-01 No Sample # L3-10213A-FRGS-008-SS-A Result Uncertainty MDC ROC >MDC (pCi/g) (pCi/g) (pCi/g)

Co-60 1.89E-02 2.04E-02 2.86E-02 No Cs-134 -3.06E-03 1.04E-02 2.78E-02 No Cs-137 4.11E-01 6.15E-02 3.88E-02 Yes Ni-63 3.46E+00 1.39E+00 2.25E+00 Yes Sr-90 3.59E-01 3.59E-01 7.29E-01 No The on-site laboratory analyzed two (2) investigational surface soil samples taken from scan area 13. A summary of the analytical results for the two (2) surface samples collected for investigations is provided in Table 17. Gamma spectroscopy results (summarized in Table 17) revealed one (1) sample above MDC for Cs-137 and no samples above MDC for Co-60 or Cs-134. The concentration for Ni-63 and Sr-90 are inferred based on the maximum ratios as specified in Table 7. The complete gamma spectroscopy reports are presented in Attachment 3.

[23]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Table 17 - Summary of Gamma Spectroscopy Results for Investigational Surface Soil Samples Co-60 Cs-134 Cs-137 Ni-63 Sr-90 MEASUREMENT ID (pCi/g) (pCi/g) (pCi/g) (pCi/g) (pCi/g)

L3-10213AA-FIGS-001SS 1.51E-02 6.12E-02 9.83E-02 2.72E+00 1.97E-04 L3-10213AA-FIGS-002SS 2.91E-02 0.00E+00 1.28E-01 5.25E+00 2.56E-04 The implementation of survey specific QC measures included the collection of one (1) sample (L3-10213A-FQGS-007-SS) for split sample analysis. The on-site laboratory analyzed the designated QC sample using the on-site gamma spectroscopy system. A summary of the analytical results for the QC sample is provided in Table 18. Gamma spectroscopy results (summarized in Table 18) revealed a concentration above MDC for Cs-137 and none above MDC for Co-60 or Cs-134. The concentration for Ni-63 and Sr-90 are inferred based on the maximum ratios as specified in Table 7.

Table 18 - Summary of Gamma Spectroscopy Results for QC Surface Soil Sample Co-60 Cs-134 Cs-137 Ni-63 Sr-90 MEASUREMENT ID (pCi/g) (pCi/g) (pCi/g) (pCi/g) (pCi/g)

L3-10213A-FQGS-007-SS 1.86E-03 8.08E-03 4.12E-02 3.36E-01 8.24E-05 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 5 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 as well as the judgmental samples for survey unit 10213A are provided in Table 19.

[24]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Table 19 - Sum-of-Fractions for Individual Surface Soil Samples (Systematic and QC)

FRACTION OF OPERATIONAL DCGL MEASUREMENT ID SOF Co-60 Cs-134 Cs-137 Ni-63 Sr-90 L3-10213A-FRGS-001-SS 0.02145 0.00107 0.00650 0.00462 0.00002 0.03365 L3-10213A-FRGS-002-SS 0.00000 0.00750 0.00000 0.00000 0.00000 0.00750 L3-10213A-FRGS-003-SS 0.00000 0.00103 0.01350 0.00000 0.00750 0.01456 L3-10213A-FRGS-004-SS 0.00953 0.00240 0.00510 0.00205 0.00000 0.01909 L3-10213A-FRGS-005-SS 0.00848 0.00641 0.03471 0.00182 0.00000 0.05150 L3-10213A-FRGS-006-SS 0.01696 0.00000 0.08595 0.00365 0.00000 0.10676 L3-10213A-FRGS-007-SS 0.00000 0.00000 0.02047 0.00000 0.00000 0.02052 L3-10213A-FRGS-008-SS 0.00000 0.00076 0.09614 0.00000 0.00103 0.09713 L3-10213A-FRGS-009-SS 0.00488 0.00000 0.05069 0.00105 0.01350 0.05673 L3-10213A-FRGS-010-SS 0.02282 0.00492 0.01774 0.00491 0.00000 0.05044 L3-10213A-FRGS-011-SS 0.01027 0.00095 0.04931 0.00221 0.00003 0.06285 L3-10213A-FRGS-012-SS 0.00106 0.00577 0.02237 0.00023 0.00953 0.02948 L3-10213A-FRGS-013-SS 0.00000 0.01391 0.00669 0.00000 0.00240 0.02062 L3-10213A-FRGS-014-SS 0.00000 0.00612 0.01463 0.00000 0.00510 0.02078 L3-10213A-FQGS-007-SS 0.00170 0.00466 0.01135 0.00037 0.00205 0.01811 Systematic Measurements Number of Systematic Measurements = 14

of Systematic Measurements with SOF > 1 = 0

of Systematic Measurements with SOF > 0.1 (HTD Assessment) = 1 Max Individual Systematic Measurement SOF = 0.1068 Mean Systematic Measurement SOF = 0.0423

[25]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Table 19 (continued) - Sum-of-Fractions for Individual Surface Soil Samples (Investigational)

FRACTION OF OPERATIONAL DCGL MEASUREMENT ID SOF Co-60 Cs-134 Cs-137 Ni-63 Sr-90 L3-10213A-FIGS-001SS 0.01384 0.03531 0.02708 0.00298 0.00006 0.07928 L3-10213A-FIGS-002SS 0.02667 0.00000 0.03526 0.00574 0.00008 0.01811 Systematic Measurements Number of Judgmental Measurements = 0 Number of Investigation Measurements = 2

of Judgmental/Investigation Measurements with SOF > 1= 0

of Judgmental/Investigation Measurements with SOF > 0.1 (HTD Assessment) = 0 Max Individual Judgmental/Investigation Measurement SOF = 0.0793 The mean of all identified isotopes are less than the Consultation Triggers for Residential Soil Concentration depicted in Table H.1 of NUREG 1757, Vol.1, Rev. 2 (MOU Table 1).

The full table is included in Attachment 4 of this Release Record.

8. QUALITY CONTROL The on-site laboratory processed one (1) split sample, L3-10213A-FQGS-007-SS, using gamma spectroscopy analysis. The data was evaluated using USNRC acceptance criteria specified in Inspection Procedure No. 84750, Radioactive Waste Treatment, and Effluent and Environmental Monitoring (Reference 15). There was acceptable agreement between field split results. Refer to Attachment 5 for data and quality control analysis results.

9. INVESTIGATIONS AND RESULTS Two (2) surface soil samples were taken to investigate the alarms at scan area 13. The 2 samples, L3-10213A-FIGS-001-SS and L3-10213A-FIGS-002-SS, were analyzed using the on-site gamma spectroscopy system. Gamma spectroscopy results revealed one (1) sample above MDC for Cs-137 and no samples above MDC for Co-60 or Cs-134.

10. REMEDIATION AND RESULTS Historically, no radiological remedial action as described by MARSSIM Section 5.4 was performed in this survey unit prior to or as a result of the FSS. Chapter 4 of the ZSRP

[26]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A LTP determined that remediation beyond that required to meet the release criteria is unnecessary and that the remaining residual radioactivity in soil was ALARA.

11. CHANGES FROM THE FINAL STATUS SURVEY PLAN There were no addendums to the FSS plan.

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 and were sufficient to ensure that the survey unit was properly designated as Class 3. The sampling design had adequate power as indicated by the Retrospective Power Curve.

The analytical results of all samples were less than a SOF of one. Although MARSSIM states that the Sign Test need not be performed in the instance that no measurements surpass the DCGL, the test was conducted to demonstrate coherence to the statistical principles of the DQO process. The Sign Test was performed on the data and compared to the original assumptions of the DQOs. The evaluation of the Sign Test results clearly demonstrates that the survey unit passes the unrestricted release criteria, thus, the null hypothesis is rejected.

The 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 No anomalies were observed during the performance or analyses of the survey.

[27]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A

14. CONCLUSION Survey unit 10213A 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 applicable and remediation was not required.

All identified ROC were used for statistical testing to determine the adequacy of the survey unit for FSS. Evaluation of the data shows that none of the ROC concentration values exceeds the Operational DCGL or any investigational levels; therefore, in accordance with the LTP Section 5.10, the survey unit meets the release criterion.

The sample data passed the Sign Test. The null hypothesis was rejected. The Retrospective Power Curve showed that adequate power was achieved. The survey unit is properly classified as Class 3.

The dose contribution from soil in survey unit 10213A is 0.2705 mrem/yr TEDE, based on the average concentration of the ROC in samples used for non-parametric statistical sampling.

Survey unit 10213A 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

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

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

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

6. Historical Site Assessment (HSA)

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

8. ZionSolutions TSD 14-011, Soil Area Factors

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

10. ZionSolutions TSD 14-019, Radionuclides of Concern for Soil and Basement Fill

[28]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Model Source Terms

11. ZionSolutions ZS-LT-01, Quality Assurance Project Plan (for Characterization and FSS) (QAPP)

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

13. ZionSolutions procedure ZS-LT-100-001-004, Sample Media Preparation

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

15. U.S. NRC Inspection Procedure No. 84750, Radioactive Waste Treatment, and Effluent and Environmental Monitoring

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

16. ATTACHMENTS Attachment 1 - Figures and Maps Attachment 2 - Scan Data Attachment 3 - Sample Analytical Reports Attachment 4 - Consultation Triggers for Residential Soil Concentration Attachment 5 - QC Sample Assessment Attachment 6 - Graphical Presentations Attachment 7 - Eberline Analytical Report

[29]

ATTACHMENT 1 FIGURES AND MAPS

[30]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Figure 1 - Survey Unit 10213A Boundary

[31]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Figure 2 - Survey Unit 10213A Characterization Survey Sample Locations

[32]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Figure 3 - Survey Unit 10213A Final Status Survey

[33]

ATTACHMENT 2 SCAN DATA

[34]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A 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 PR311756 266669 10213 GS002 4/12/2016 8:20 2390 1644 2423 No 44-10 PR311756 266669 10213 GS002 4/12/2016 8:21 2190 1644 2423 No 44-10 PR311756 266669 10213 GS002 4/12/2016 8:22 2340 1644 2423 No 44-10 PR311756 266669 10213 GS002 4/12/2016 8:25 2330 1644 2423 No 44-10 PR311756 266669 10213 GS002 4/12/2016 8:26 2320 1644 2423 No 44-10 PR311756 266669 10213 GS002 4/12/2016 8:27 2260 1644 2423 No 44-10 PR311756 266669 10213 GS002 4/12/2016 8:29 2420 1644 2423 No 44-10 PR311756 266669 10213 GS003 4/12/2016 8:37 2240 1644 2423 No 44-10 PR311756 266669 10213 GS003 4/12/2016 8:39 2310 1644 2423 No 44-10 PR311756 266669 10213 GS003 4/12/2016 8:41 2400 1644 2423 No 44-10 PR311756 266669 10213 GS003 4/12/2016 8:43 2410 1644 2423 No 44-10 PR311756 266669 10213 GS003 4/12/2016 8:44 2380 1644 2423 No 44-10 PR311756 266669 10213 GS003 4/12/2016 8:49 2360 1644 2423 No 44-10 PR311756 266669 10213 GS003 4/12/2016 8:51 2390 1644 2423 No 44-10 PR311756 266669 10213 GS003 4/12/2016 8:51 2260 1644 2423 No 44-10 PR311756 266669 10213 GS003 4/12/2016 8:52 2340 1644 2423 No 44-10 PR311756 266669 10213 GS004 4/12/2016 9:45 2250 1644 2423 No 44-10 PR311756 266669 10213 GS004 4/12/2016 9:46 2230 1644 2423 No 44-10 PR311756 266669 10213 GS004 4/12/2016 9:47 2130 1644 2423 No 44-10 PR311756 266669 10213 GS004 4/12/2016 9:48 2240 1644 2423 No 44-10 PR311756 266669 10213 GS004 4/12/2016 9:49 2160 1644 2423 No 44-10 PR311756 266669 10213 GS004 4/12/2016 9:50 2030 1644 2423 No

[35]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A 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 PR311756 266669 10213 GS004 4/12/2016 9:51 2270 1644 2423 No 44-10 PR311756 266669 10213 GS004 4/12/2016 9:52 2410 1644 2423 No 44-10 PR311756 266669 10213 GS005 4/12/2016 9:56 2350 1644 2423 No 44-10 PR311756 266669 10213 GS005 4/12/2016 9:57 2030 1644 2423 No 44-10 PR311756 266669 10213 GS005 4/12/2016 9:58 2080 1644 2423 No 44-10 PR311756 266669 10213 GS005 4/12/2016 9:59 2330 1644 2423 No 44-10 PR311756 266669 10213 GS005 4/12/2016 10:00 2340 1644 2423 No 44-10 PR311756 266669 10213 GS005 4/12/2016 10:01 2230 1644 2423 No 44-10 PR311756 266669 10213 GS005 4/12/2016 10:02 2070 1644 2423 No 44-10 PR311756 266669 10213 GS001 4/12/2016 10:17 2340 1644 2423 No 44-10 PR311756 266669 10213 GS001 4/12/2016 10:18 2360 1644 2423 No 44-10 PR311756 266669 10213 GS001 4/12/2016 10:19 2240 1644 2423 No 44-10 PR311756 266669 10213 GS001 4/12/2016 10:21 1850 1644 2423 No 44-10 PR311756 266669 10213 GS001 4/12/2016 10:25 2110 1644 2423 No 44-10 PR311756 266669 10213 GS001 4/12/2016 10:28 2150 1644 2423 No 44-10 PR311756 266669 10213 GS015 4/12/2016 10:36 1900 1644 2423 No 44-10 PR311756 266669 10213 GS015 4/12/2016 10:37 2130 1644 2423 No 44-10 PR311756 266669 10213 GS015 4/12/2016 10:37 2390 1644 2423 No 44-10 PR311756 266669 10213 GS015 4/12/2016 10:38 2390 1644 2423 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:31 2910 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:32 2750 2109 2991 No

[36]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A 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 PR311756 266669 10213 GS015 4/12/2016 12:32 2530 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:33 2540 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:35 2630 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:35 2160 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:36 2530 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:38 2650 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:39 2550 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:40 2490 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:41 2790 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:41 2650 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:42 2890 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:43 2470 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:44 2870 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:45 2780 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:47 2510 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:50 2610 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:50 2450 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:51 2680 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:52 2970 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:54 2880 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:55 2460 2109 2991 No

[37]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A 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 PR311756 266669 10213 GS015 4/12/2016 12:55 2540 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:56 2810 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:58 2610 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 12:59 2840 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 13:00 2640 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 13:00 2670 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 13:02 2790 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 13:03 2790 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 13:04 2980 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 13:04 2630 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 13:07 2880 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 13:08 2510 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 13:08 2960 2109 2991 No 44-10 PR311756 266669 10213 GS015 4/12/2016 13:10 2890 2109 2991 No 44-10 PR316938 293136 10213 GS006 4/12/2016 9:37 2010 1766 2573 No 44-10 PR316938 293136 10213 GS006 4/12/2016 9:39 2260 1766 2573 No 44-10 PR316938 293136 10213 GS006 4/12/2016 9:39 2040 1766 2573 No 44-10 PR316938 293136 10213 GS006 4/12/2016 9:40 2240 1766 2573 No 44-10 PR316938 293136 10213 GS006 4/12/2016 9:40 2000 1766 2573 No 44-10 PR316938 293136 10213 GS006 4/12/2016 9:41 2130 1766 2573 No 44-10 PR316938 293136 10213 GS006 4/12/2016 9:41 1870 1766 2573 No

[38]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A 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 PR316938 293136 10213 GS006 4/12/2016 9:42 1800 1766 2573 No 44-10 PR316938 293136 10213 GS007 4/12/2016 9:49 2550 1766 2573 No 44-10 PR316938 293136 10213 GS007 4/12/2016 9:51 2280 1766 2573 No 44-10 PR316938 293136 10213 GS007 4/12/2016 9:52 2530 1766 2573 No 44-10 PR316938 293136 10213 GS007 4/12/2016 9:53 2040 1766 2573 No 44-10 PR316938 293136 10213 GS007 4/12/2016 9:53 2060 1766 2573 No 44-10 PR316938 293136 10213 GS007 4/12/2016 9:54 1910 1766 2573 No 44-10 PR316938 293136 10213 GS007 4/12/2016 9:54 1940 1766 2573 No 44-10 PR316938 293136 10213 GS008 4/12/2016 9:58 2530 1766 2573 No 44-10 PR316938 293136 10213 GS008 4/12/2016 9:59 2260 1766 2573 No 44-10 PR316938 293136 10213 GS008 4/12/2016 9:59 2270 1766 2573 No 44-10 PR316938 293136 10213 GS008 4/12/2016 10:00 2250 1766 2573 No 44-10 PR316938 293136 10213 GS008 4/12/2016 10:00 2160 1766 2573 No 44-10 PR316938 293136 10213 GS008 4/12/2016 10:01 2070 1766 2573 No 44-10 PR316938 293136 10213 GS008 4/12/2016 10:02 2380 1766 2573 No 44-10 PR316938 293136 10213 GS008 4/12/2016 10:02 2180 1766 2573 No 44-10 PR316938 293136 10213 GS009 4/12/2016 10:07 2270 1766 2573 No 44-10 PR316938 293136 10213 GS009 4/12/2016 10:08 2350 1766 2573 No 44-10 PR316938 293136 10213 GS009 4/12/2016 10:08 2180 1766 2573 No 44-10 PR316938 293136 10213 GS009 4/12/2016 10:09 2160 1766 2573 No 44-10 PR316938 293136 10213 GS009 4/12/2016 10:09 2030 1766 2573 No

[39]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A 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 PR316938 293136 10213 GS009 4/12/2016 10:10 2210 1766 2573 No 44-10 PR316938 293136 10213 GS009 4/12/2016 10:10 1950 1766 2573 No 44-10 PR316938 293136 10213 GS013 4/12/2016 13:40 3810 1766 2573 Yes 44-10 PR316938 293136 10213 GS013 4/12/2016 13:41 4600 1766 2573 Yes 44-10 PR316938 293136 10213 GS013 4/12/2016 13:42 4110 1766 2573 Yes 44-10 PR316938 293136 10213 GS013 4/12/2016 13:43 3730 1766 2573 Yes 44-10 PR316938 293136 10213 GS013 4/12/2016 13:43 3500 1766 2573 Yes 44-10 PR316938 293136 10213 GS013 4/12/2016 13:43 3950 1766 2573 Yes 44-10 PR316938 293136 10213 GS013 4/12/2016 13:44 4140 1766 2573 Yes 44-10 PR316938 293136 10213 GS013 4/12/2016 13:44 2520 1766 2573 No 44-10 PR316938 293136 10213 GS013 4/12/2016 13:45 3950 1766 2573 Yes 44-10 PR316938 293136 10213 GS014 4/16/2016 9:21 3330 2604 3584 No 44-10 PR316938 293136 10213 GS014 4/16/2016 9:21 3420 2604 3584 No 44-10 PR316938 293136 10213 GS014 4/16/2016 9:22 3560 2604 3584 No 44-10 PR316938 293136 10213 GS014 4/16/2016 9:24 3520 2604 3584 No 44-10 PR316938 293136 10213 GS014 4/16/2016 9:25 3400 2604 3584 No 44-10 PR316938 293136 10213 GS014 4/16/2016 9:25 3360 2604 3584 No 44-10 PR316938 293136 10213 GS014 4/16/2016 9:25 3280 2604 3584 No 44-10 PR316938 293136 10213 GS014 4/16/2016 9:26 2710 2604 3584 No 44-10 PR316938 293136 10213 GS014 4/16/2016 9:26 2780 2604 3584 No 44-10 PR316938 293136 10213 GS014 4/16/2016 9:27 3500 2604 3584 No

[40]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A 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 PR316938 293136 10213 GS014 4/16/2016 9:27 3420 2604 3584 No 44-10 PR316938 293136 10213 GS014 4/16/2016 9:27 2800 2604 3584 No 44-10 PR316938 293136 10213 GS014 4/16/2016 9:28 3450 2604 3584 No 44-10 PR316938 293136 10213 GS014 4/16/2016 9:28 3340 2604 3584 No 44-10 PR316938 293136 10213 GS014 4/16/2016 9:29 2530 2604 3584 No 44-10 PR316938 293136 10213 GS014 4/16/2016 9:29 2690 2604 3584 No 44-10 PR316938 293136 10213 GS014 4/16/2016 9:30 3460 2604 3584 No 44-10 PR316938 293136 10213 GS012 4/16/2016 9:49 1940 2375 3311 No 44-10 PR316938 293136 10213 GS012 4/16/2016 9:50 2220 2375 3311 No 44-10 PR316938 293136 10213 GS012 4/16/2016 9:50 2260 2375 3311 No 44-10 PR316938 293136 10213 GS012 4/16/2016 9:50 2220 2375 3311 No 44-10 PR316938 293136 10213 GS012 4/16/2016 9:51 2160 2375 3311 No 44-10 PR316938 293136 10213 GS012 4/16/2016 9:51 2220 2375 3311 No 44-10 PR316938 293136 10213 GS012 4/16/2016 9:52 2240 2375 3311 No 44-10 PR316938 293136 10213 GS012 4/16/2016 9:52 2280 2375 3311 No 44-10 PR316938 293136 10213 GS012 4/16/2016 9:53 2320 2375 3311 No 44-10 PR316938 293136 10213 GS012 4/16/2016 9:53 2260 2375 3311 No 44-10 PR316938 293136 10213 GS012 4/16/2016 9:53 2390 2375 3311 No 44-10 PR316938 293136 10213 GS012 4/16/2016 9:54 2340 2375 3311 No 44-10 PR316938 293136 10213 GS012 4/16/2016 9:54 2270 2375 3311 No 44-10 PR316938 293136 10213 GS012 4/16/2016 9:55 2600 2375 3311 No

[41]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A 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 PR316938 293136 10213 GS012 4/16/2016 9:55 2370 2375 3311 No 44-10 PR316938 293136 10213 GS012 4/16/2016 9:55 2630 2375 3311 No 44-10 PR316938 293136 10213 GS011 4/16/2016 10:10 2150 2022 2886 No 44-10 PR316938 293136 10213 GS011 4/16/2016 10:10 2120 2022 2886 No 44-10 PR316938 293136 10213 GS011 4/16/2016 10:11 2010 2022 2886 No 44-10 PR316938 293136 10213 GS011 4/16/2016 10:11 2150 2022 2886 No 44-10 PR316938 293136 10213 GS011 4/16/2016 10:11 2030 2022 2886 No 44-10 PR316938 293136 10213 GS011 4/16/2016 10:12 2080 2022 2886 No 44-10 PR316938 293136 10213 GS011 4/16/2016 10:12 2270 2022 2886 No 44-10 PR316938 293136 10213 GS011 4/16/2016 10:13 2250 2022 2886 No 44-10 PR316938 293136 10213 GS011 4/16/2016 10:13 2390 2022 2886 No 44-10 PR316938 293136 10213 GS011 4/16/2016 10:13 2340 2022 2886 No 44-10 PR316938 293136 10213 GS011 4/16/2016 10:14 2230 2022 2886 No 44-10 PR316938 293136 10213 GS011 4/16/2016 10:14 2030 2022 2886 No 44-10 PR316938 293136 10213 GS011 4/16/2016 10:15 2310 2022 2886 No 44-10 PR316938 293136 10213 GS011 4/16/2016 10:15 2210 2022 2886 No 44-10 PR316938 293136 10213 GS011 4/16/2016 10:15 2040 2022 2886 No 44-10 PR316938 293136 10213 GS010 4/16/2016 10:28 2080 2022 2886 No 44-10 PR316938 293136 10213 GS010 4/16/2016 10:28 2060 2022 2886 No 44-10 PR316938 293136 10213 GS010 4/16/2016 10:28 2160 2022 2886 No 44-10 PR316938 293136 10213 GS010 4/16/2016 10:29 2250 2022 2886 No

[42]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A 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 PR316938 293136 10213 GS010 4/16/2016 10:29 2020 2022 2886 No 44-10 PR316938 293136 10213 GS010 4/16/2016 10:30 2090 2022 2886 No 44-10 PR316938 293136 10213 GS010 4/16/2016 10:30 2190 2022 2886 No 44-10 PR316938 293136 10213 GS010 4/16/2016 10:31 2230 2022 2886 No 44-10 PR316938 293136 10213 GS010 4/16/2016 10:31 2010 2022 2886 No 44-10 PR316938 293136 10213 GS010 4/16/2016 10:32 1910 2022 2886 No 44-10 PR316938 293136 10213 GS010 4/16/2016 10:32 2380 2022 2886 No 44-10 PR316938 293136 10213 GS010 4/16/2016 10:33 2200 2022 2886 No 44-10 PR316938 293136 10213 GS010 4/16/2016 10:33 2110 2022 2886 No 44-10 PR316938 293136 10213 GS010 4/16/2016 10:34 2310 2022 2886 No 44-10 PR316938 293136 10213 GS010 4/16/2016 10:34 2190 2022 2886 No 44-10 PR308037 266657 10213 GS007Q 4/13/2016 13:03 1780 1776 2586 No 44-10 PR308037 266657 10213 GS007Q 4/13/2016 13:03 1830 1776 2586 No 44-10 PR308037 266657 10213 GS007Q 4/13/2016 13:04 1850 1776 2586 No 44-10 PR308037 266657 10213 GS007Q 4/13/2016 13:04 1890 1776 2586 No 44-10 PR308037 266657 10213 GS007Q 4/13/2016 13:05 1910 1776 2586 No 44-10 PR308037 266657 10213 GS007Q 4/13/2016 13:05 1950 1776 2586 No 44-10 PR308037 266657 10213 GS007Q 4/13/2016 13:06 1700 1776 2586 No 44-10 PR308037 266657 10213 GS007Q 4/13/2016 13:06 1780 1776 2586 No 44-10 PR308037 266657 10213 GS007Q 4/13/2016 13:07 1730 1776 2586 No 44-10 PR308037 266657 10213 GS007Q 4/13/2016 13:07 1740 1776 2586 No

[43]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A 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 PR308037 266657 10213 GS007Q 4/13/2016 13:08 1740 1776 2586 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:23 3120 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:23 3430 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:25 2060 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:25 2860 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:26 2260 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:26 2110 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:28 2370 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:28 3320 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:29 3570 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:29 3240 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:29 3430 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:30 3430 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:30 2380 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:31 2710 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:31 2300 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:32 2290 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:32 2140 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:32 2410 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:33 2660 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:33 3340 3120 4193 No

[44]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A 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 PR308037 266657 10213 GS016 4/13/2016 13:34 3690 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:34 3260 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:35 3280 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:35 3310 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:35 3480 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:36 3400 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:36 3610 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:37 3500 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:37 3410 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:37 2570 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:38 2580 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:38 2240 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:39 2130 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:39 2100 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:40 2080 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:40 2270 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:41 2290 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:41 2520 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:42 2590 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:42 3120 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:42 2990 3120 4193 No

[45]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A 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 PR308037 266657 10213 GS016 4/13/2016 13:43 2800 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:43 3590 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:44 3320 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:44 3210 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:45 2880 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:45 2830 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:46 2770 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:46 3270 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:46 2650 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:47 2470 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:47 2250 3120 4193 No 44-10 PR308037 266657 10213 GS016 4/13/2016 13:48 2270 3120 4193 No

[46]

ATTACHMENT 3 SAMPLE ANALYTICAL REPORTS

[47]

4/20/2016 8:22:05AM Page2 of8 Analysis Report for 20-Apr-16-10004 L3-10213A-FRGS-002SS Peak Energy ROI ROI Peak Net Peak Net Area Continuum Tentative No. (keV) start end Centroid Area Uncertainty Counts Nuclide 1 186.37 741- 750 746.16 2 .4 5E +Ol 18.67 5 .50E +O l Ra-226 U-235 2 238 . 71 948 - 960 955.32 5 . 88E+Ol 26.69 9.04E+ 01 Pb-212 3 295.21 1174 - 1186 1181 .18 3.70E+Ol 20.52 5.20E+01 Pb- 214 Eu - 152 4 351.97 1 402 - 141 3 1408.08 7.20E+Ol 21.13 3.60E+Ol Pb-214 Bi-211 5 582.82 2325 - 2338 2331.04 3.54E+ Ol 13 . 98 1. 12E+Ol Tl -2 08 6 609.09 2429 - 2443 2436 .11 7.43E+Ol 17.75 3.31E+00 Bi-214 7 910. 82 3637 - 3648 3643.01 l.61E+Ol 10.87 1 . 17E+Ol Ac-228 8 1460.31 5834 - 5853 584 2 .22 l.43E+02 24 . 9 1 1. 05E+Ol K-40 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 2.000sigma NUCLIDE IDENTIFICATION REPORT Nuclide Library Used : C:\Canberra\Apex\Root\Default\Library\ZION LIB-BNL.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yleld{°A,) Activity Activity Coinc Name Confidence {keV) (pCi/grams) Uncertainty Corr K-40 0. 98 1 460 . 82

10.66 9 . 2 4E +OO 1 .80E+ OO miss Tl-208 0 .99 583 . 19

85.00 l .5 4E -01 6 . 35E - 02 miss Pb - 212 1. 00 115 .18 0.60 238.63

43.60 2. 7 4E-01 l.3 2E-01 miss 300 . 09 3 . 30 Bi - 214 0 . 99 609 . 32

45.49 6 . 22E- 01 1 . 66E - 01 miss 768 . 36 4 . 89 806 . 18 1. 26 934.06 3. 1 1 11 20 .2 9 1 4.92 1155. 21 1. 63 1238 . 12 5.83 12 80.98 1. 43 137 7 .6 7 3 . 99 1385. 31 0 . 79 1 40 1 . 52 1. 33 1407 . 99 2.39

4/20/2016 8:22:05AM Page 3 of8 Analysis Report for 20-Apr-16-10004 L3-10213A-FRGS-002SS Nuclide Id Energy Yield(%) -Ar.tivifv

., Actfi,1!t-J Coinc Name Confidence Corr (keV) (pCi/grams) Uncertainty Bi-214 0. 99 1509.21 2 .13 1661.27 1. 05 1729.59 2.88 1764.49 15.30 1847.43 2.03 2118.51 1. 16 Pb-214 I. 00 241.99 7.25 295.22

18.42 4.66E-O: 2 . 69E-Ol miss 351.93

35.60 5.25E-Ol 1 .75E-Ol miss 785. 96 1. 06 Ra-226 0 .99 186.21

3.64 l. 22E+OO 9.47E-Ol mi ss Ac-228 0. 99 129.07 2.42 209.25 3.89 270.24 3.46 328. 00 2.95 338.32 11.27 409.46 1. 92 463. 00 4. 40 794.95 4.25 911. 20 25.80 3 . 13E-01 2 . 12E-01 miss 964.77 4.99 968. 97 15.80 1588.20 3.22 U-235 0 .98 143.76 10 . 96 163.33 5.08 185 . 7l

57.20 7.74E-02 6.03E-02 miss 202 .11 1. 08 205.31 5.01

= Energy line found in the spectrum.

- = Manually added nuclide.

? = Manually edited nuclide.

@ = Energy line not used for Weighted Mean Activity Energy Tolerance : 1.000FWHM Nuclide confidence index threshold = 0.30 Errors quoted at 2.000sigma Coincidence correction performed.

free = No coincidence correction required.

miss = Nuclide energy was not found in the coincidence library.

INTERFERENCE CORRECTED REPORT

ATTACHMENT 4 CONSULTATION TRIGGERS FOR RESIDENTIAL SOIL CONCENTRATION

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A

[189]

ATTACHMENT 5 QC SAMPLE ASSESSMENT

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Duplicate Sample Assessment Survey Unit #: 10200 Survey Unit # 10213A Survey Unit Name: North East Corner of Exclusion Area, Power House Sample Plan#: L310213AF Sample

Description:

Comparison of split samples collected from surface soil samples from location #7 and analyzed using gamma spectroscopy by on-site HpGe System. The standard sample was L3-10213AFRGS-007SS, the comparison sample was L3-10213AFQGS-007SS.

STANDARD COMPARISON Activity Standard Agreement Activity Standard Comparison Acceptable Radionuclide Resolution Value Error Range Value Error Ratio (Y/N)

Cs-137 7.43E-02 1.01E-01 0.74 0.4-2.5 4.12E-02 5.67E-02 1.80 Y Comments/Corrective Actions: None Table is provided to show acceptance criteria used to assess split samples.

Performed by: RF Yetter III Date: Reveiwed by: Date:

9/21/2017

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ATTACHMENT 6 GRAPHICAL PRESENTATIONS

[192]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Quantile Plot for Co-60 Survey Unit: L310213A Survey Unit Name: Open Land - NE Corner of Exclusion Area, Power House Mean: 8.06E-03 pCi/g

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FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Quantile Plot for Cs-137 Survey Unit: L310213A Survey Unit Name: Open Land - NE Corner of Exclusion Area, Power House Mean: 1.10E-01 pCi/g

[194]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Histogram for Co-60 HISTOGRAM FOR Co-60 Survey Unit: L310213A Open Land - NE Corner of Exclusion Area, Survey Unit Name: Power House Mean: 7.44E-03 pCi/g Median: 3.24E-03 pCi/g ST DEV: 0.00913205 Skew: 0.95507886 Upper Value Observation Observation Frequency %

4.15E-03 7 50%

8.30E-03 1 7%

1.25E-02 3 21%

1.66E-02 0 0%

2.08E-02 1 7%

2.49E-02 2 14%

TOTAL 14

[195]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Histogram for Cs-137 Survey Unit: L310213A Open Land - NE Corner of Exclusion Area, Power Survey Unit Name: House Mean: 1.10E-01 pCi/g Median: 6.94E-02 pCi/g ST DEV: 0.10913697 Skew: 1.29365905 Upper Value Observation Observation Frequency %

5.82E-02 6 43%

1.16E-01 3 21%

1.75E-01 1 7%

2.33E-01 2 14%

2.91E-01 0 0%

3.49E-01 2 14%

TOTAL 14

[196]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A Retrospective Power Curve for Survey Unit 10213A

[197]

FSS RELEASE RECORD NORTHEAST CORNER OF EXCLUSION AREA SURVEY UNIT 10213A ATTACHMENT 7 EBERLINE ANALYTICAL REPORTS

[198]

Printed: 6/14/2018 1:18 PM Page 1 of 6 Report To: Work Order Details:

Patricia Giza 17-03011 Eberline Analytical Zion Solutions SDG:

Purchase Order: 671498 Final Report of Analysis 101 Shiloh Blvd Analysis Category: ENVIRONMENTAL Zion, IL 60099 Sample Matrix: SO Lab Sample Client Sample Receipt Analysis Batch Report Analyte Method Result CU CSU MDA Qualifier ID Type ID Date Date Date ID Units 17-03011-01 LCS KNOWN 03/03/17 00:00 3/3/2017 3/14/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified 1.51E+03 4.52E+01 pCi/g 17-03011-01 LCS SPIKE 03/03/17 00:00 3/3/2017 3/14/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified 1.52E+03 9.33E+00 9.01E+01 2.11E+00 pCi/g 17-03011-02 MBL BLANK 03/03/17 00:00 3/3/2017 3/14/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified 1.58E+00 1.27E+00 1.27E+00 2.11E+00 U pCi/g 17-03011-03 DUP L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/14/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified 2.19E+00 1.39E+00 1.39E+00 2.29E+00 U pCi/g 17-03011-04 DO L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/14/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified 1.71E+00 1.37E+00 1.37E+00 2.28E+00 U pCi/g 17-03011-05 TRG L310213AFRGS008SS-A 04/14/16 08:00 3/3/2017 3/14/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified 3.46E+00 1.39E+00 1.40E+00 2.25E+00 pCi/g 17-03011-06 TRG L310219AFRGS006SS-A 10/03/16 09:10 3/3/2017 3/14/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified 2.88E-01 1.36E+00 1.36E+00 2.31E+00 U pCi/g 17-03011-07 TRG L310219BFRGS004SS-A 09/27/16 08:25 3/3/2017 3/14/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified -1.69E+00 1.65E+00 1.65E+00 2.90E+00 U pCi/g 17-03011-08 TRG L310220CRFGS002SS-A 05/23/16 14:30 3/3/2017 3/14/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified 6.89E-01 1.40E+00 1.40E+00 2.37E+00 U pCi/g 17-03011-09 TRG L310223AFRGS004SS-A 04/25/16 13:15 3/3/2017 3/14/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified 8.22E-01 1.30E+00 1.30E+00 2.20E+00 U pCi/g 17-03011-10 TRG L310224AFRGS004SS-A 06/02/16 12:40 3/3/2017 3/14/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified 1.06E+00 1.27E+00 1.27E+00 2.13E+00 U pCi/g 17-03011-11 TRG L310301AFRGS003SS-A 06/14/16 13:27 3/3/2017 3/14/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified 3.84E+00 1.40E+00 1.42E+00 2.25E+00 pCi/g 17-03011-12 TRG L310212AFJGS019SS-A 05/16/16 10:45 3/3/2017 3/14/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified 2.34E+00 1.48E+00 1.49E+00 2.44E+00 U pCi/g 17-03011-13 TRG L310219AFRJS019SS-A 09/27/16 12:30 3/3/2017 3/15/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified 1.97E+00 1.36E+00 1.37E+00 2.26E+00 U pCi/g 17-03011-14 TRG L310220CFRGS009SS-A 05/02/16 14:00 3/3/2017 3/15/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified 1.09E+00 1.42E+00 1.42E+00 2.39E+00 U pCi/g 17-03011-15 TRG L310224AFRGS012SS-A 06/02/16 14:16 3/3/2017 3/15/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified 9.12E-01 1.44E+00 1.44E+00 2.44E+00 U pCi/g 17-03011-16 TRG L310301AFIGS017SS-A 06/14/16 13:40 3/3/2017 3/15/2017 17-03011 Nickel-63 ASTM 3500-Ni Modified 1.02E+01 1.52E+00 1.64E+00 2.24E+00 pCi/g 17-03011-01 LCS KNOWN 03/03/17 00:00 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified 5.43E+01 3.04E-01 pCi/g 17-03011-01 LCS SPIKE 03/03/17 00:00 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified 6.16E+01 1.65E+00 2.15E+01 8.24E-01 pCi/g 17-03011-02 MBL BLANK 03/03/17 00:00 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified -2.14E-02 4.23E-01 4.23E-01 9.04E-01 U pCi/g 17-03011-03 DUP L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified 7.78E-01 3.45E-01 4.39E-01 6.48E-01 pCi/g 17-03011-04 DO L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified 5.42E-01 3.48E-01 3.96E-01 6.83E-01 U pCi/g 17-03011-05 TRG L310213AFRGS008SS-A 04/14/16 08:00 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified 3.59E-01 3.59E-01 3.81E-01 7.29E-01 U pCi/g 17-03011-06 TRG L310219AFRGS006SS-A 10/03/16 09:10 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified 3.97E-01 3.66E-01 3.91E-01 7.40E-01 U pCi/g 17-03011-07 TRG L310219BFRGS004SS-A 09/27/16 08:25 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified 5.85E-01 4.17E-01 4.64E-01 8.27E-01 U pCi/g 17-03011-08 TRG L310220CRFGS002SS-A 05/23/16 14:30 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified 6.39E-02 3.97E-01 3.98E-01 8.41E-01 U pCi/g 17-03011-09 TRG L310223AFRGS004SS-A 04/25/16 13:15 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified 9.84E-01 3.37E-01 4.80E-01 6.09E-01 pCi/g 17-03011-10 TRG L310224AFRGS004SS-A 06/02/16 12:40 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified 4.59E-01 3.45E-01 3.80E-01 6.86E-01 U pCi/g 17-03011-11 TRG L310301AFRGS003SS-A 06/14/16 13:27 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified 6.36E-01 3.86E-01 4.45E-01 7.54E-01 U pCi/g 17-03011-12 TRG L310212AFJGS019SS-A 05/16/16 10:45 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified 8.09E-01 4.19E-01 5.05E-01 8.12E-01 U pCi/g 17-03011-13 TRG L310219AFRJS019SS-A 09/27/16 12:30 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified 7.29E-01 3.98E-01 4.72E-01 7.75E-01 U pCi/g 17-03011-14 TRG L310220CFRGS009SS-A 05/02/16 14:00 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified 3.09E-01 3.90E-01 4.04E-01 8.00E-01 U pCi/g 17-03011-15 TRG L310224AFRGS012SS-A 06/02/16 14:16 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified 1.03E-01 3.61E-01 3.62E-01 7.59E-01 U pCi/g 17-03011-16 TRG L310301AFIGS017SS-A 06/14/16 13:40 3/3/2017 3/27/2017 17-03011 Strontium-90 EIChroM SRW01 Modified 5.03E-01 3.78E-01 4.17E-01 7.53E-01 U pCi/g CU=Counting Uncertainty;CSU=Combined Standard Uncertainty (2-sigma);MDA=Minimal Detected Activity;LCS=Laboratory Control Sample;MBL=Blank; DUP=Duplicate;TRG=Normal Sample;DO=Duplicate Original;U=Non-detect

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Patricia Giza 17-03011 Eberline Analytical Zion Solutions SDG:

Purchase Order: 671498 Final Report of Analysis 101 Shiloh Blvd Analysis Category: ENVIRONMENTAL Zion, IL 60099 Sample Matrix: SO Lab Sample Client Sample Receipt Analysis Batch Report Analyte Method Result CU CSU MDA Qualifier ID Type ID Date Date Date ID Units 17-03011-01 LCS KNOWN 03/03/17 00:00 3/3/2017 3/6/2017 17-03011 Cobalt-60 LANL ER-130 Modified 6.21E+01 2.48E+00 pCi/g 17-03011-01 LCS KNOWN 03/03/17 00:00 3/3/2017 3/6/2017 17-03011 Cesium-137 LANL ER-130 Modified 3.94E+01 1.58E+00 pCi/g 17-03011-01 LCS SPIKE 03/03/17 00:00 3/3/2017 3/6/2017 17-03011 Cobalt-60 LANL ER-130 Modified 7.58E+01 5.03E+00 6.36E+00 6.59E-01 pCi/g 17-03011-01 LCS SPIKE 03/03/17 00:00 3/3/2017 3/6/2017 17-03011 Cesium-137 LANL ER-130 Modified 4.44E+01 4.02E+00 4.62E+00 6.97E-01 pCi/g 17-03011-02 MBL BLANK 03/03/17 00:00 3/3/2017 3/6/2017 17-03011 Actinium-228 LANL ER-130 Modified 4.74E-02 4.81E-02 4.82E-02 8.85E-02 U pCi/g 17-03011-02 MBL BLANK 03/03/17 00:00 3/3/2017 3/6/2017 17-03011 Bismuth-214 LANL ER-130 Modified 1.72E-02 2.56E-02 2.57E-02 4.39E-02 U pCi/g 17-03011-02 MBL BLANK 03/03/17 00:00 3/3/2017 3/6/2017 17-03011 Cobalt-60 LANL ER-130 Modified 1.29E-02 1.46E-02 1.46E-02 2.73E-02 U pCi/g 17-03011-02 MBL BLANK 03/03/17 00:00 3/3/2017 3/6/2017 17-03011 Cesium-134 LANL ER-130 Modified -1.28E-04 1.27E-02 1.27E-02 1.91E-02 U pCi/g 17-03011-02 MBL BLANK 03/03/17 00:00 3/3/2017 3/6/2017 17-03011 Cesium-137 LANL ER-130 Modified 6.40E-03 1.48E-02 1.48E-02 2.34E-02 U pCi/g 17-03011-02 MBL BLANK 03/03/17 00:00 3/3/2017 3/6/2017 17-03011 Potassium-40 LANL ER-130 Modified 1.37E-01 1.68E-01 1.69E-01 3.28E-01 U pCi/g 17-03011-02 MBL BLANK 03/03/17 00:00 3/3/2017 3/6/2017 17-03011 Lead-212 LANL ER-130 Modified 6.28E-03 1.70E-02 1.70E-02 2.64E-02 U pCi/g 17-03011-02 MBL BLANK 03/03/17 00:00 3/3/2017 3/6/2017 17-03011 Lead-214 LANL ER-130 Modified -3.01E-03 2.42E-02 2.42E-02 3.65E-02 U pCi/g 17-03011-02 MBL BLANK 03/03/17 00:00 3/3/2017 3/6/2017 17-03011 Thallium-208 LANL ER-130 Modified -5.23E-03 4.16E-02 4.16E-02 6.34E-02 U pCi/g 17-03011-03 DUP L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Actinium-228 LANL ER-130 Modified 4.11E-01 1.33E-01 1.34E-01 2.02E-01 pCi/g 17-03011-03 DUP L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Bismuth-214 LANL ER-130 Modified 4.84E-01 1.17E-01 1.19E-01 1.04E-01 pCi/g 17-03011-03 DUP L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Cobalt-60 LANL ER-130 Modified -2.54E-03 3.32E-02 3.32E-02 4.18E-02 U pCi/g 17-03011-03 DUP L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Cesium-134 LANL ER-130 Modified 2.64E-04 1.18E-02 1.18E-02 4.72E-02 U pCi/g 17-03011-03 DUP L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Cesium-137 LANL ER-130 Modified 5.75E-02 4.30E-02 4.31E-02 7.05E-02 U pCi/g 17-03011-03 DUP L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Potassium-40 LANL ER-130 Modified 1.01E+01 1.11E+00 1.23E+00 4.65E-01 pCi/g 17-03011-03 DUP L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Lead-212 LANL ER-130 Modified 4.00E-01 5.25E-02 5.64E-02 8.50E-02 pCi/g 17-03011-03 DUP L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Lead-214 LANL ER-130 Modified 3.90E-01 1.31E-01 1.33E-01 9.32E-02 pCi/g 17-03011-03 DUP L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Thallium-208 LANL ER-130 Modified 2.46E-01 6.92E-02 7.04E-02 5.39E-02 pCi/g 17-03011-04 DO L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Actinium-228 LANL ER-130 Modified 4.23E-01 1.04E-01 1.06E-01 2.03E-01 pCi/g 17-03011-04 DO L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Bismuth-214 LANL ER-130 Modified 4.66E-01 1.11E-01 1.13E-01 8.49E-02 pCi/g 17-03011-04 DO L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Cobalt-60 LANL ER-130 Modified 4.50E-04 3.33E-02 3.33E-02 3.46E-02 U pCi/g 17-03011-04 DO L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Cesium-134 LANL ER-130 Modified -5.96E-03 1.09E-02 1.09E-02 4.15E-02 U pCi/g 17-03011-04 DO L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Cesium-137 LANL ER-130 Modified 6.04E-02 3.06E-02 3.08E-02 4.76E-02 pCi/g 17-03011-04 DO L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Potassium-40 LANL ER-130 Modified 1.02E+01 1.13E+00 1.24E+00 5.53E-01 pCi/g 17-03011-04 DO L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Lead-212 LANL ER-130 Modified 3.75E-01 5.11E-02 5.46E-02 8.70E-02 pCi/g 17-03011-04 DO L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Lead-214 LANL ER-130 Modified 4.00E-01 1.33E-01 1.35E-01 1.11E-01 pCi/g 17-03011-04 DO L310212AFRGS002SS-A 05/11/16 10:30 3/3/2017 3/6/2017 17-03011 Thallium-208 LANL ER-130 Modified 1.86E-01 6.47E-02 6.54E-02 6.95E-02 pCi/g CU=Counting Uncertainty;CSU=Combined Standard Uncertainty (2-sigma);MDA=Minimal Detected Activity;LCS=Laboratory Control Sample;MBL=Blank; DUP=Duplicate;TRG=Normal Sample;DO=Duplicate Original;U=Non-detect

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Patricia Giza 17-03011 Eberline Analytical Zion Solutions SDG:

Purchase Order: 671498 Final Report of Analysis 101 Shiloh Blvd Analysis Category: ENVIRONMENTAL Zion, IL 60099 Sample Matrix: SO Lab Sample Client Sample Receipt Analysis Batch Report Analyte Method Result CU CSU MDA Qualifier ID Type ID Date Date Date ID Units 17-03011-05 TRG L310213AFRGS008SS-A 04/14/16 08:00 3/3/2017 3/6/2017 17-03011 Actinium-228 LANL ER-130 Modified 3.95E-01 6.68E-02 6.98E-02 2.26E-01 pCi/g 17-03011-05 TRG L310213AFRGS008SS-A 04/14/16 08:00 3/3/2017 3/6/2017 17-03011 Bismuth-214 LANL ER-130 Modified 3.88E-01 6.28E-02 6.59E-02 8.04E-02 pCi/g 17-03011-05 TRG L310213AFRGS008SS-A 04/14/16 08:00 3/3/2017 3/6/2017 17-03011 Cobalt-60 LANL ER-130 Modified 1.89E-02 2.04E-02 2.04E-02 2.86E-02 U pCi/g 17-03011-05 TRG L310213AFRGS008SS-A 04/14/16 08:00 3/3/2017 3/6/2017 17-03011 Cesium-134 LANL ER-130 Modified -3.06E-03 1.04E-02 1.04E-02 2.78E-02 U pCi/g 17-03011-05 TRG L310213AFRGS008SS-A 04/14/16 08:00 3/3/2017 3/6/2017 17-03011 Cesium-137 LANL ER-130 Modified 4.11E-01 6.15E-02 6.50E-02 3.88E-02 pCi/g 17-03011-05 TRG L310213AFRGS008SS-A 04/14/16 08:00 3/3/2017 3/6/2017 17-03011 Potassium-40 LANL ER-130 Modified 6.85E+00 8.02E-01 8.76E-01 2.60E-01 pCi/g 17-03011-05 TRG L310213AFRGS008SS-A 04/14/16 08:00 3/3/2017 3/6/2017 17-03011 Lead-212 LANL ER-130 Modified 3.45E-01 5.27E-02 5.56E-02 4.16E-02 pCi/g 17-03011-05 TRG L310213AFRGS008SS-A 04/14/16 08:00 3/3/2017 3/6/2017 17-03011 Lead-214 LANL ER-130 Modified 3.73E-01 6.08E-02 6.37E-02 7.27E-02 pCi/g 17-03011-05 TRG L310213AFRGS008SS-A 04/14/16 08:00 3/3/2017 3/6/2017 17-03011 Thallium-208 LANL ER-130 Modified 3.93E-01 7.55E-02 7.82E-02 6.80E-02 pCi/g 17-03011-06 TRG L310219AFRGS006SS-A 10/03/16 09:10 3/3/2017 3/6/2017 17-03011 Actinium-228 LANL ER-130 Modified 3.14E-01 1.00E-01 1.02E-01 1.05E-01 pCi/g 17-03011-06 TRG L310219AFRGS006SS-A 10/03/16 09:10 3/3/2017 3/6/2017 17-03011 Bismuth-214 LANL ER-130 Modified 3.82E-01 7.07E-02 7.34E-02 7.96E-02 pCi/g 17-03011-06 TRG L310219AFRGS006SS-A 10/03/16 09:10 3/3/2017 3/6/2017 17-03011 Cobalt-60 LANL ER-130 Modified 2.05E-03 1.95E-02 1.95E-02 2.33E-02 U pCi/g 17-03011-06 TRG L310219AFRGS006SS-A 10/03/16 09:10 3/3/2017 3/6/2017 17-03011 Cesium-134 LANL ER-130 Modified 4.00E-03 6.34E-03 6.34E-03 2.49E-02 U pCi/g 17-03011-06 TRG L310219AFRGS006SS-A 10/03/16 09:10 3/3/2017 3/6/2017 17-03011 Cesium-137 LANL ER-130 Modified 2.25E-02 2.00E-02 2.01E-02 3.30E-02 U pCi/g 17-03011-06 TRG L310219AFRGS006SS-A 10/03/16 09:10 3/3/2017 3/6/2017 17-03011 Potassium-40 LANL ER-130 Modified 8.06E+00 1.03E+00 1.11E+00 4.94E-01 pCi/g 17-03011-06 TRG L310219AFRGS006SS-A 10/03/16 09:10 3/3/2017 3/6/2017 17-03011 Lead-212 LANL ER-130 Modified 3.61E-01 1.24E-01 1.26E-01 6.77E-02 pCi/g 17-03011-06 TRG L310219AFRGS006SS-A 10/03/16 09:10 3/3/2017 3/6/2017 17-03011 Lead-214 LANL ER-130 Modified 3.73E-01 1.30E-01 1.31E-01 6.84E-02 pCi/g 17-03011-06 TRG L310219AFRGS006SS-A 10/03/16 09:10 3/3/2017 3/6/2017 17-03011 Thallium-208 LANL ER-130 Modified 2.87E-01 7.16E-02 7.31E-02 5.18E-02 pCi/g 17-03011-07 TRG L310219BFRGS004SS-A 09/27/16 08:25 3/3/2017 3/6/2017 17-03011 Actinium-228 LANL ER-130 Modified 2.85E-01 1.06E-01 1.07E-01 2.08E-01 pCi/g 17-03011-07 TRG L310219BFRGS004SS-A 09/27/16 08:25 3/3/2017 3/6/2017 17-03011 Bismuth-214 LANL ER-130 Modified 4.30E-01 9.29E-02 9.55E-02 1.27E-01 pCi/g 17-03011-07 TRG L310219BFRGS004SS-A 09/27/16 08:25 3/3/2017 3/6/2017 17-03011 Cobalt-60 LANL ER-130 Modified 1.61E-03 9.25E-03 9.25E-03 5.27E-02 U pCi/g 17-03011-07 TRG L310219BFRGS004SS-A 09/27/16 08:25 3/3/2017 3/6/2017 17-03011 Cesium-134 LANL ER-130 Modified 8.33E-03 1.55E-02 1.55E-02 4.39E-02 U pCi/g 17-03011-07 TRG L310219BFRGS004SS-A 09/27/16 08:25 3/3/2017 3/6/2017 17-03011 Cesium-137 LANL ER-130 Modified 6.93E-01 1.06E-01 1.12E-01 6.05E-02 pCi/g 17-03011-07 TRG L310219BFRGS004SS-A 09/27/16 08:25 3/3/2017 3/6/2017 17-03011 Potassium-40 LANL ER-130 Modified 4.65E+00 7.78E-01 8.14E-01 5.30E-01 pCi/g 17-03011-07 TRG L310219BFRGS004SS-A 09/27/16 08:25 3/3/2017 3/6/2017 17-03011 Lead-212 LANL ER-130 Modified 5.59E-02 5.32E-02 5.33E-02 1.04E-01 U pCi/g 17-03011-07 TRG L310219BFRGS004SS-A 09/27/16 08:25 3/3/2017 3/6/2017 17-03011 Lead-214 LANL ER-130 Modified 3.45E-01 8.88E-02 9.05E-02 1.15E-01 pCi/g 17-03011-07 TRG L310219BFRGS004SS-A 09/27/16 08:25 3/3/2017 3/6/2017 17-03011 Thallium-208 LANL ER-130 Modified 2.39E-01 8.59E-02 8.67E-02 1.47E-01 pCi/g CU=Counting Uncertainty;CSU=Combined Standard Uncertainty (2-sigma);MDA=Minimal Detected Activity;LCS=Laboratory Control Sample;MBL=Blank; DUP=Duplicate;TRG=Normal Sample;DO=Duplicate Original;U=Non-detect

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Patricia Giza 17-03011 Eberline Analytical Zion Solutions SDG:

Purchase Order: 671498 Final Report of Analysis 101 Shiloh Blvd Analysis Category: ENVIRONMENTAL Zion, IL 60099 Sample Matrix: SO Lab Sample Client Sample Receipt Analysis Batch Report Analyte Method Result CU CSU MDA Qualifier ID Type ID Date Date Date ID Units 17-03011-08 TRG L310220CRFGS002SS-A 05/23/16 14:30 3/3/2017 3/6/2017 17-03011 Actinium-228 LANL ER-130 Modified 2.93E-01 1.05E-01 1.06E-01 2.39E-01 pCi/g 17-03011-08 TRG L310220CRFGS002SS-A 05/23/16 14:30 3/3/2017 3/6/2017 17-03011 Bismuth-214 LANL ER-130 Modified 3.41E-01 6.34E-02 6.57E-02 1.35E-01 pCi/g 17-03011-08 TRG L310220CRFGS002SS-A 05/23/16 14:30 3/3/2017 3/6/2017 17-03011 Cobalt-60 LANL ER-130 Modified -3.32E-02 4.28E-02 4.28E-02 5.98E-02 U pCi/g 17-03011-08 TRG L310220CRFGS002SS-A 05/23/16 14:30 3/3/2017 3/6/2017 17-03011 Cesium-134 LANL ER-130 Modified 6.49E-03 2.04E-02 2.04E-02 4.57E-02 U pCi/g 17-03011-08 TRG L310220CRFGS002SS-A 05/23/16 14:30 3/3/2017 3/6/2017 17-03011 Cesium-137 LANL ER-130 Modified 4.03E-01 7.19E-02 7.49E-02 8.51E-02 pCi/g 17-03011-08 TRG L310220CRFGS002SS-A 05/23/16 14:30 3/3/2017 3/6/2017 17-03011 Potassium-40 LANL ER-130 Modified 8.03E+00 1.20E+00 1.27E+00 6.92E-01 pCi/g 17-03011-08 TRG L310220CRFGS002SS-A 05/23/16 14:30 3/3/2017 3/6/2017 17-03011 Lead-212 LANL ER-130 Modified 3.68E-01 5.53E-02 5.84E-02 1.09E-01 pCi/g 17-03011-08 TRG L310220CRFGS002SS-A 05/23/16 14:30 3/3/2017 3/6/2017 17-03011 Lead-214 LANL ER-130 Modified 2.92E-01 6.40E-02 6.57E-02 1.03E-01 pCi/g 17-03011-08 TRG L310220CRFGS002SS-A 05/23/16 14:30 3/3/2017 3/6/2017 17-03011 Thallium-208 LANL ER-130 Modified 4.27E-01 1.02E-01 1.04E-01 1.72E-01 pCi/g 17-03011-09 TRG L310223AFRGS004SS-A 04/25/16 13:15 3/3/2017 3/6/2017 17-03011 Actinium-228 LANL ER-130 Modified 2.67E-01 1.03E-01 1.03E-01 7.51E-02 pCi/g 17-03011-09 TRG L310223AFRGS004SS-A 04/25/16 13:15 3/3/2017 3/6/2017 17-03011 Bismuth-214 LANL ER-130 Modified 3.06E-01 6.14E-02 6.33E-02 6.49E-02 pCi/g 17-03011-09 TRG L310223AFRGS004SS-A 04/25/16 13:15 3/3/2017 3/6/2017 17-03011 Cobalt-60 LANL ER-130 Modified 1.29E-02 1.47E-02 1.47E-02 1.62E-02 U pCi/g 17-03011-09 TRG L310223AFRGS004SS-A 04/25/16 13:15 3/3/2017 3/6/2017 17-03011 Cesium-134 LANL ER-130 Modified 1.85E-03 5.88E-03 5.88E-03 2.29E-02 U pCi/g 17-03011-09 TRG L310223AFRGS004SS-A 04/25/16 13:15 3/3/2017 3/6/2017 17-03011 Cesium-137 LANL ER-130 Modified 5.77E-03 1.18E-02 1.18E-02 1.84E-02 U pCi/g 17-03011-09 TRG L310223AFRGS004SS-A 04/25/16 13:15 3/3/2017 3/6/2017 17-03011 Potassium-40 LANL ER-130 Modified 4.97E+00 6.50E-01 6.98E-01 3.09E-01 pCi/g 17-03011-09 TRG L310223AFRGS004SS-A 04/25/16 13:15 3/3/2017 3/6/2017 17-03011 Lead-212 LANL ER-130 Modified 2.92E-01 9.35E-02 9.47E-02 5.97E-02 pCi/g 17-03011-09 TRG L310223AFRGS004SS-A 04/25/16 13:15 3/3/2017 3/6/2017 17-03011 Lead-214 LANL ER-130 Modified 3.26E-01 1.09E-01 1.11E-01 5.08E-02 pCi/g 17-03011-09 TRG L310223AFRGS004SS-A 04/25/16 13:15 3/3/2017 3/6/2017 17-03011 Thallium-208 LANL ER-130 Modified 2.49E-01 6.26E-02 6.39E-02 6.96E-02 pCi/g 17-03011-10 TRG L310224AFRGS004SS-A 06/02/16 12:40 3/3/2017 3/6/2017 17-03011 Actinium-228 LANL ER-130 Modified 4.56E-01 8.81E-02 9.11E-02 1.90E-01 pCi/g 17-03011-10 TRG L310224AFRGS004SS-A 06/02/16 12:40 3/3/2017 3/6/2017 17-03011 Bismuth-214 LANL ER-130 Modified 3.52E-01 1.14E-01 1.16E-01 7.67E-02 pCi/g 17-03011-10 TRG L310224AFRGS004SS-A 06/02/16 12:40 3/3/2017 3/6/2017 17-03011 Cobalt-60 LANL ER-130 Modified -1.95E-03 2.38E-02 2.38E-02 2.96E-02 U pCi/g 17-03011-10 TRG L310224AFRGS004SS-A 06/02/16 12:40 3/3/2017 3/6/2017 17-03011 Cesium-134 LANL ER-130 Modified -2.43E-03 1.04E-02 1.04E-02 3.39E-02 U pCi/g 17-03011-10 TRG L310224AFRGS004SS-A 06/02/16 12:40 3/3/2017 3/6/2017 17-03011 Cesium-137 LANL ER-130 Modified 1.68E-02 1.97E-02 1.97E-02 3.18E-02 U pCi/g 17-03011-10 TRG L310224AFRGS004SS-A 06/02/16 12:40 3/3/2017 3/6/2017 17-03011 Potassium-40 LANL ER-130 Modified 5.89E+00 7.05E-01 7.67E-01 4.46E-01 pCi/g 17-03011-10 TRG L310224AFRGS004SS-A 06/02/16 12:40 3/3/2017 3/6/2017 17-03011 Lead-212 LANL ER-130 Modified 5.13E-01 5.35E-02 5.96E-02 8.50E-02 pCi/g 17-03011-10 TRG L310224AFRGS004SS-A 06/02/16 12:40 3/3/2017 3/6/2017 17-03011 Lead-214 LANL ER-130 Modified 4.53E-01 1.30E-01 1.32E-01 6.76E-02 pCi/g 17-03011-10 TRG L310224AFRGS004SS-A 06/02/16 12:40 3/3/2017 3/6/2017 17-03011 Thallium-208 LANL ER-130 Modified 3.20E-01 6.85E-02 7.04E-02 3.88E-02 pCi/g CU=Counting Uncertainty;CSU=Combined Standard Uncertainty (2-sigma);MDA=Minimal Detected Activity;LCS=Laboratory Control Sample;MBL=Blank; DUP=Duplicate;TRG=Normal Sample;DO=Duplicate Original;U=Non-detect

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Patricia Giza 17-03011 Eberline Analytical Zion Solutions SDG:

Purchase Order: 671498 Final Report of Analysis 101 Shiloh Blvd Analysis Category: ENVIRONMENTAL Zion, IL 60099 Sample Matrix: SO Lab Sample Client Sample Receipt Analysis Batch Report Analyte Method Result CU CSU MDA Qualifier ID Type ID Date Date Date ID Units 17-03011-11 TRG L310301AFRGS003SS-A 06/14/16 13:27 3/3/2017 3/6/2017 17-03011 Actinium-228 LANL ER-130 Modified 3.10E-01 1.38E-01 1.39E-01 2.87E-01 pCi/g 17-03011-11 TRG L310301AFRGS003SS-A 06/14/16 13:27 3/3/2017 3/6/2017 17-03011 Bismuth-214 LANL ER-130 Modified 2.90E-01 8.05E-02 8.19E-02 1.08E-01 pCi/g 17-03011-11 TRG L310301AFRGS003SS-A 06/14/16 13:27 3/3/2017 3/6/2017 17-03011 Cobalt-60 LANL ER-130 Modified -1.08E-02 4.50E-02 4.50E-02 5.74E-02 U pCi/g 17-03011-11 TRG L310301AFRGS003SS-A 06/14/16 13:27 3/3/2017 3/6/2017 17-03011 Cesium-134 LANL ER-130 Modified 7.65E-03 1.58E-02 1.58E-02 4.69E-02 U pCi/g 17-03011-11 TRG L310301AFRGS003SS-A 06/14/16 13:27 3/3/2017 3/6/2017 17-03011 Cesium-137 LANL ER-130 Modified 3.28E-01 6.71E-02 6.92E-02 8.42E-02 pCi/g 17-03011-11 TRG L310301AFRGS003SS-A 06/14/16 13:27 3/3/2017 3/6/2017 17-03011 Potassium-40 LANL ER-130 Modified 9.77E+00 1.40E+00 1.49E+00 6.37E-01 pCi/g 17-03011-11 TRG L310301AFRGS003SS-A 06/14/16 13:27 3/3/2017 3/6/2017 17-03011 Lead-212 LANL ER-130 Modified 3.17E-01 5.43E-02 5.66E-02 9.23E-02 pCi/g 17-03011-11 TRG L310301AFRGS003SS-A 06/14/16 13:27 3/3/2017 3/6/2017 17-03011 Lead-214 LANL ER-130 Modified 3.38E-01 7.09E-02 7.30E-02 1.13E-01 pCi/g 17-03011-11 TRG L310301AFRGS003SS-A 06/14/16 13:27 3/3/2017 3/6/2017 17-03011 Thallium-208 LANL ER-130 Modified 3.08E-01 1.13E-01 1.14E-01 1.65E-01 pCi/g 17-03011-12 TRG L310212AFJGS019SS-A 05/16/16 10:45 3/3/2017 3/6/2017 17-03011 Actinium-228 LANL ER-130 Modified 4.28E-01 8.53E-02 8.80E-02 1.50E-01 pCi/g 17-03011-12 TRG L310212AFJGS019SS-A 05/16/16 10:45 3/3/2017 3/6/2017 17-03011 Bismuth-214 LANL ER-130 Modified 3.40E-01 7.01E-02 7.22E-02 9.44E-02 pCi/g 17-03011-12 TRG L310212AFJGS019SS-A 05/16/16 10:45 3/3/2017 3/6/2017 17-03011 Cobalt-60 LANL ER-130 Modified 1.84E-02 2.40E-02 2.40E-02 3.33E-02 U pCi/g 17-03011-12 TRG L310212AFJGS019SS-A 05/16/16 10:45 3/3/2017 3/6/2017 17-03011 Cesium-134 LANL ER-130 Modified -2.32E-02 2.89E-02 2.89E-02 3.14E-02 U pCi/g 17-03011-12 TRG L310212AFJGS019SS-A 05/16/16 10:45 3/3/2017 3/6/2017 17-03011 Cesium-137 LANL ER-130 Modified 2.81E-02 2.43E-02 2.43E-02 3.95E-02 U pCi/g 17-03011-12 TRG L310212AFJGS019SS-A 05/16/16 10:45 3/3/2017 3/6/2017 17-03011 Potassium-40 LANL ER-130 Modified 7.18E+00 8.97E-01 9.70E-01 5.24E-01 pCi/g 17-03011-12 TRG L310212AFJGS019SS-A 05/16/16 10:45 3/3/2017 3/6/2017 17-03011 Lead-212 LANL ER-130 Modified 5.13E-01 7.92E-02 8.35E-02 6.71E-02 pCi/g 17-03011-12 TRG L310212AFJGS019SS-A 05/16/16 10:45 3/3/2017 3/6/2017 17-03011 Lead-214 LANL ER-130 Modified 3.46E-01 5.95E-02 6.21E-02 7.38E-02 pCi/g 17-03011-12 TRG L310212AFJGS019SS-A 05/16/16 10:45 3/3/2017 3/6/2017 17-03011 Thallium-208 LANL ER-130 Modified 3.96E-01 8.55E-02 8.78E-02 1.12E-01 pCi/g 17-03011-13 TRG L310219AFRJS019SS-A 09/27/16 12:30 3/3/2017 3/6/2017 17-03011 Actinium-228 LANL ER-130 Modified 2.89E-01 1.08E-01 1.09E-01 1.71E-01 pCi/g 17-03011-13 TRG L310219AFRJS019SS-A 09/27/16 12:30 3/3/2017 3/6/2017 17-03011 Bismuth-214 LANL ER-130 Modified 4.18E-01 8.65E-02 8.91E-02 7.83E-02 pCi/g 17-03011-13 TRG L310219AFRJS019SS-A 09/27/16 12:30 3/3/2017 3/6/2017 17-03011 Cobalt-60 LANL ER-130 Modified 6.19E-03 2.06E-02 2.06E-02 2.63E-02 U pCi/g 17-03011-13 TRG L310219AFRJS019SS-A 09/27/16 12:30 3/3/2017 3/6/2017 17-03011 Cesium-134 LANL ER-130 Modified 6.73E-03 1.17E-02 1.17E-02 2.91E-02 U pCi/g 17-03011-13 TRG L310219AFRJS019SS-A 09/27/16 12:30 3/3/2017 3/6/2017 17-03011 Cesium-137 LANL ER-130 Modified 6.84E-02 2.08E-02 2.11E-02 3.89E-02 pCi/g 17-03011-13 TRG L310219AFRJS019SS-A 09/27/16 12:30 3/3/2017 3/6/2017 17-03011 Potassium-40 LANL ER-130 Modified 7.14E+00 9.28E-01 9.97E-01 4.26E-01 pCi/g 17-03011-13 TRG L310219AFRJS019SS-A 09/27/16 12:30 3/3/2017 3/6/2017 17-03011 Lead-212 LANL ER-130 Modified 3.24E-01 1.13E-01 1.15E-01 9.05E-02 pCi/g 17-03011-13 TRG L310219AFRJS019SS-A 09/27/16 12:30 3/3/2017 3/6/2017 17-03011 Lead-214 LANL ER-130 Modified 3.61E-01 1.29E-01 1.30E-01 5.38E-02 pCi/g 17-03011-13 TRG L310219AFRJS019SS-A 09/27/16 12:30 3/3/2017 3/6/2017 17-03011 Thallium-208 LANL ER-130 Modified 2.52E-01 7.63E-02 7.74E-02 1.17E-01 pCi/g CU=Counting Uncertainty;CSU=Combined Standard Uncertainty (2-sigma);MDA=Minimal Detected Activity;LCS=Laboratory Control Sample;MBL=Blank; DUP=Duplicate;TRG=Normal Sample;DO=Duplicate Original;U=Non-detect

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Patricia Giza 17-03011 Eberline Analytical Zion Solutions SDG:

Purchase Order: 671498 Final Report of Analysis 101 Shiloh Blvd Analysis Category: ENVIRONMENTAL Zion, IL 60099 Sample Matrix: SO Lab Sample Client Sample Receipt Analysis Batch Report Analyte Method Result CU CSU MDA Qualifier ID Type ID Date Date Date ID Units 17-03011-14 TRG L310220CFRGS009SS-A 05/02/16 14:00 3/3/2017 3/7/2017 17-03011 Actinium-228 LANL ER-130 Modified 2.73E-01 9.62E-02 9.72E-02 1.03E-01 pCi/g 17-03011-14 TRG L310220CFRGS009SS-A 05/02/16 14:00 3/3/2017 3/7/2017 17-03011 Bismuth-214 LANL ER-130 Modified 2.99E-01 6.02E-02 6.21E-02 6.14E-02 pCi/g 17-03011-14 TRG L310220CFRGS009SS-A 05/02/16 14:00 3/3/2017 3/7/2017 17-03011 Cobalt-60 LANL ER-130 Modified 2.51E-02 1.55E-02 1.56E-02 2.24E-02 pCi/g 17-03011-14 TRG L310220CFRGS009SS-A 05/02/16 14:00 3/3/2017 3/7/2017 17-03011 Cesium-134 LANL ER-130 Modified -5.07E-03 9.42E-03 9.43E-03 2.76E-02 U pCi/g 17-03011-14 TRG L310220CFRGS009SS-A 05/02/16 14:00 3/3/2017 3/7/2017 17-03011 Cesium-137 LANL ER-130 Modified 3.38E-01 4.02E-02 4.38E-02 3.33E-02 pCi/g 17-03011-14 TRG L310220CFRGS009SS-A 05/02/16 14:00 3/3/2017 3/7/2017 17-03011 Potassium-40 LANL ER-130 Modified 6.77E+00 8.72E-01 9.39E-01 3.88E-01 pCi/g 17-03011-14 TRG L310220CFRGS009SS-A 05/02/16 14:00 3/3/2017 3/7/2017 17-03011 Lead-212 LANL ER-130 Modified 3.17E-01 1.10E-01 1.11E-01 6.70E-02 pCi/g 17-03011-14 TRG L310220CFRGS009SS-A 05/02/16 14:00 3/3/2017 3/7/2017 17-03011 Lead-214 LANL ER-130 Modified 2.31E-01 8.83E-02 8.91E-02 5.75E-02 pCi/g 17-03011-14 TRG L310220CFRGS009SS-A 05/02/16 14:00 3/3/2017 3/7/2017 17-03011 Thallium-208 LANL ER-130 Modified 3.12E-01 7.53E-02 7.70E-02 5.09E-02 pCi/g 17-03011-15 TRG L310224AFRGS012SS-A 06/02/16 14:16 3/3/2017 3/7/2017 17-03011 Actinium-228 LANL ER-130 Modified 3.28E-01 5.75E-02 5.99E-02 1.19E-01 pCi/g 17-03011-15 TRG L310224AFRGS012SS-A 06/02/16 14:16 3/3/2017 3/7/2017 17-03011 Bismuth-214 LANL ER-130 Modified 2.77E-01 5.55E-02 5.72E-02 7.49E-02 pCi/g 17-03011-15 TRG L310224AFRGS012SS-A 06/02/16 14:16 3/3/2017 3/7/2017 17-03011 Cobalt-60 LANL ER-130 Modified 2.22E-03 1.65E-02 1.65E-02 2.20E-02 U pCi/g 17-03011-15 TRG L310224AFRGS012SS-A 06/02/16 14:16 3/3/2017 3/7/2017 17-03011 Cesium-134 LANL ER-130 Modified 2.87E-03 6.84E-03 6.84E-03 1.89E-02 U pCi/g 17-03011-15 TRG L310224AFRGS012SS-A 06/02/16 14:16 3/3/2017 3/7/2017 17-03011 Cesium-137 LANL ER-130 Modified 2.03E-02 1.30E-02 1.30E-02 2.04E-02 U pCi/g 17-03011-15 TRG L310224AFRGS012SS-A 06/02/16 14:16 3/3/2017 3/7/2017 17-03011 Potassium-40 LANL ER-130 Modified 6.22E+00 6.92E-01 7.62E-01 2.36E-01 pCi/g 17-03011-15 TRG L310224AFRGS012SS-A 06/02/16 14:16 3/3/2017 3/7/2017 17-03011 Lead-212 LANL ER-130 Modified 2.87E-01 4.16E-02 4.42E-02 4.20E-02 pCi/g 17-03011-15 TRG L310224AFRGS012SS-A 06/02/16 14:16 3/3/2017 3/7/2017 17-03011 Lead-214 LANL ER-130 Modified 2.66E-01 4.22E-02 4.44E-02 4.27E-02 pCi/g 17-03011-15 TRG L310224AFRGS012SS-A 06/02/16 14:16 3/3/2017 3/7/2017 17-03011 Thallium-208 LANL ER-130 Modified 2.87E-01 5.58E-02 5.77E-02 4.54E-02 pCi/g 17-03011-16 TRG L310301AFIGS017SS-A 06/14/16 13:40 3/3/2017 3/7/2017 17-03011 Actinium-228 LANL ER-130 Modified 3.84E-01 1.09E-01 1.11E-01 2.05E-01 pCi/g 17-03011-16 TRG L310301AFIGS017SS-A 06/14/16 13:40 3/3/2017 3/7/2017 17-03011 Bismuth-214 LANL ER-130 Modified 2.85E-01 9.70E-02 9.81E-02 1.05E-01 pCi/g 17-03011-16 TRG L310301AFIGS017SS-A 06/14/16 13:40 3/3/2017 3/7/2017 17-03011 Cobalt-60 LANL ER-130 Modified 8.55E-03 3.20E-02 3.20E-02 5.09E-02 U pCi/g 17-03011-16 TRG L310301AFIGS017SS-A 06/14/16 13:40 3/3/2017 3/7/2017 17-03011 Cesium-134 LANL ER-130 Modified 1.76E-03 1.48E-02 1.48E-02 4.53E-02 U pCi/g 17-03011-16 TRG L310301AFIGS017SS-A 06/14/16 13:40 3/3/2017 3/7/2017 17-03011 Cesium-137 LANL ER-130 Modified 3.37E-01 6.23E-02 6.46E-02 7.54E-02 pCi/g 17-03011-16 TRG L310301AFIGS017SS-A 06/14/16 13:40 3/3/2017 3/7/2017 17-03011 Potassium-40 LANL ER-130 Modified 6.05E+00 8.31E-01 8.87E-01 5.71E-01 pCi/g 17-03011-16 TRG L310301AFIGS017SS-A 06/14/16 13:40 3/3/2017 3/7/2017 17-03011 Lead-212 LANL ER-130 Modified 4.33E-01 5.83E-02 6.23E-02 8.32E-02 pCi/g 17-03011-16 TRG L310301AFIGS017SS-A 06/14/16 13:40 3/3/2017 3/7/2017 17-03011 Lead-214 LANL ER-130 Modified 3.29E-01 1.49E-01 1.50E-01 1.23E-01 pCi/g 17-03011-16 TRG L310301AFIGS017SS-A 06/14/16 13:40 3/3/2017 3/7/2017 17-03011 Thallium-208 LANL ER-130 Modified 2.56E-01 8.59E-02 8.69E-02 1.05E-01 pCi/g CU=Counting Uncertainty;CSU=Combined Standard Uncertainty (2-sigma);MDA=Minimal Detected Activity;LCS=Laboratory Control Sample;MBL=Blank; DUP=Duplicate;TRG=Normal Sample;DO=Duplicate Original;U=Non-detect

Printed: 6/14/2018 1:19 PM Page 1 of 2 Report To: Work Order Details:

Alex Bohacheff 17-10053 Eberline Analytical Zion Solutions SDG:

Purchase Order: 671498 Final Report of Analysis 101 Shiloh Blvd Analysis Category: ENVIRONMENTAL Zion, IL 60099 Sample Matrix: SO Lab Sample Client Sample Receipt Analysis Batch Report Analyte Method Result CU CSU MDA Qualifier ID Type ID Date Date Date ID Units 17-10053-01 LCS KNOWN 10/11/17 00:00 10/11/2017 10/13/2017 17-10053 Cobalt-60 EPA 901.1 Modified 1.35E+02 5.27E+00 pCi/g 17-10053-01 LCS KNOWN 10/11/17 00:00 10/11/2017 10/13/2017 17-10053 Cesium-137 EPA 901.1 Modified 8.44E+01 3.38E+00 pCi/g 17-10053-01 LCS SPIKE 10/11/17 00:00 10/11/2017 10/13/2017 17-10053 Cobalt-60 EPA 901.1 Modified 1.30E+02 7.87E+00 1.03E+01 9.20E-01 pCi/g 17-10053-01 LCS SPIKE 10/11/17 00:00 10/11/2017 10/13/2017 17-10053 Cesium-137 EPA 901.1 Modified 8.23E+01 1.01E+01 1.09E+01 1.58E+00 pCi/g 17-10053-02 MBL BLANK 10/11/17 00:00 10/11/2017 10/13/2017 17-10053 Cobalt-60 EPA 901.1 Modified 1.49E-02 1.43E-02 1.43E-02 2.53E-02 U pCi/g 17-10053-02 MBL BLANK 10/11/17 00:00 10/11/2017 10/13/2017 17-10053 Cesium-134 EPA 901.1 Modified 1.20E-04 9.67E-03 9.67E-03 2.25E-02 U pCi/g 17-10053-02 MBL BLANK 10/11/17 00:00 10/11/2017 10/13/2017 17-10053 Cesium-137 EPA 901.1 Modified 3.18E-03 1.51E-02 1.51E-02 2.46E-02 U pCi/g 17-10053-02 MBL BLANK 10/11/17 00:00 10/11/2017 10/13/2017 17-10053 Potassium-40 EPA 901.1 Modified 8.01E-02 1.97E-01 1.97E-01 3.19E-01 U pCi/g 17-10053-03 DUP L310213AFRGS006SSB 04/13/16 13:15 10/11/2017 10/13/2017 17-10053 Cobalt-60 EPA 901.1 Modified 3.20E-02 4.42E-02 4.42E-02 5.93E-02 U pCi/g 17-10053-03 DUP L310213AFRGS006SSB 04/13/16 13:15 10/11/2017 10/13/2017 17-10053 Cesium-134 EPA 901.1 Modified -7.97E-01 2.03E-01 2.07E-01 8.98E-02 U pCi/g 17-10053-03 DUP L310213AFRGS006SSB 04/13/16 13:15 10/11/2017 10/13/2017 17-10053 Cesium-137 EPA 901.1 Modified 3.32E-01 7.60E-02 7.79E-02 9.44E-02 pCi/g 17-10053-03 DUP L310213AFRGS006SSB 04/13/16 13:15 10/11/2017 10/13/2017 17-10053 Potassium-40 EPA 901.1 Modified 1.40E+01 1.57E+00 1.73E+00 7.85E-01 pCi/g 17-10053-04 DO L310213AFRGS006SSB 04/13/16 13:15 10/11/2017 10/13/2017 17-10053 Cobalt-60 EPA 901.1 Modified 4.93E-02 4.81E-02 4.82E-02 5.54E-02 U pCi/g 17-10053-04 DO L310213AFRGS006SSB 04/13/16 13:15 10/11/2017 10/13/2017 17-10053 Cesium-134 EPA 901.1 Modified 1.42E-02 3.07E-02 3.07E-02 9.48E-02 U pCi/g 17-10053-04 DO L310213AFRGS006SSB 04/13/16 13:15 10/11/2017 10/13/2017 17-10053 Cesium-137 EPA 901.1 Modified 3.42E-01 7.70E-02 7.89E-02 9.48E-02 pCi/g 17-10053-04 DO L310213AFRGS006SSB 04/13/16 13:15 10/11/2017 10/13/2017 17-10053 Potassium-40 EPA 901.1 Modified 1.37E+01 1.67E+00 1.81E+00 1.20E+00 pCi/g 17-10053-05 TRG L310219BFRGS007SSA 09/27/16 10:05 10/11/2017 10/13/2017 17-10053 Cobalt-60 EPA 901.1 Modified -2.85E-03 2.42E-02 2.42E-02 3.05E-02 U pCi/g 17-10053-05 TRG L310219BFRGS007SSA 09/27/16 10:05 10/11/2017 10/13/2017 17-10053 Cesium-134 EPA 901.1 Modified -2.56E-03 1.67E-02 1.67E-02 3.83E-02 U pCi/g 17-10053-05 TRG L310219BFRGS007SSA 09/27/16 10:05 10/11/2017 10/13/2017 17-10053 Cesium-137 EPA 901.1 Modified 2.13E-02 2.21E-02 2.22E-02 3.62E-02 U pCi/g 17-10053-05 TRG L310219BFRGS007SSA 09/27/16 10:05 10/11/2017 10/13/2017 17-10053 Potassium-40 EPA 901.1 Modified 4.71E+00 6.50E-01 6.93E-01 3.92E-01 pCi/g 17-10053-06 TRG L310223AFRGS003SSB 04/25/16 13:20 10/11/2017 10/13/2017 17-10053 Cobalt-60 EPA 901.1 Modified 2.96E-02 4.43E-02 4.44E-02 6.13E-02 U pCi/g 17-10053-06 TRG L310223AFRGS003SSB 04/25/16 13:20 10/11/2017 10/13/2017 17-10053 Cesium-134 EPA 901.1 Modified -6.71E-03 3.68E-02 3.68E-02 8.99E-02 U pCi/g 17-10053-06 TRG L310223AFRGS003SSB 04/25/16 13:20 10/11/2017 10/13/2017 17-10053 Cesium-137 EPA 901.1 Modified 3.67E-01 7.80E-02 8.02E-02 9.46E-02 pCi/g 17-10053-06 TRG L310223AFRGS003SSB 04/25/16 13:20 10/11/2017 10/13/2017 17-10053 Potassium-40 EPA 901.1 Modified 6.97E+00 1.04E+00 1.10E+00 6.48E-01 pCi/g 17-10053-07 TRG L310223AFRGS004SSB 04/25/16 13:15 10/11/2017 10/13/2017 17-10053 Cobalt-60 EPA 901.1 Modified 2.37E-02 4.44E-02 4.44E-02 5.95E-02 U pCi/g 17-10053-07 TRG L310223AFRGS004SSB 04/25/16 13:15 10/11/2017 10/13/2017 17-10053 Cesium-134 EPA 901.1 Modified 1.77E-02 1.71E-02 1.71E-02 7.22E-02 U pCi/g 17-10053-07 TRG L310223AFRGS004SSB 04/25/16 13:15 10/11/2017 10/13/2017 17-10053 Cesium-137 EPA 901.1 Modified 2.07E-02 3.81E-02 3.81E-02 5.62E-02 U pCi/g 17-10053-07 TRG L310223AFRGS004SSB 04/25/16 13:15 10/11/2017 10/13/2017 17-10053 Potassium-40 EPA 901.1 Modified 6.62E+00 9.64E-01 1.02E+00 6.62E-01 pCi/g CU=Counting Uncertainty;CSU=Combined Standard Uncertainty (2-sigma);MDA=Minimal Detected Activity;LCS=Laboratory Control Sample;MBL=Blank;DUP=Duplicate;TRG=Normal Sample;DO=Duplicate Original;U=Non-detect

Printed: 6/14/2018 1:19 PM Page 2 of 2 Report To: Work Order Details:

Alex Bohacheff 17-10053 Eberline Analytical Zion Solutions SDG:

Purchase Order: 671498 Final Report of Analysis 101 Shiloh Blvd Analysis Category: ENVIRONMENTAL Zion, IL 60099 Sample Matrix: SO Lab Sample Client Sample Receipt Analysis Batch Report Analyte Method Result CU CSU MDA Qualifier ID Type ID Date Date Date ID Units 17-10053-08 TRG L310223AFRGS005SSA 04/25/16 13:00 10/11/2017 10/13/2017 17-10053 Cobalt-60 EPA 901.1 Modified 9.45E-03 2.47E-02 2.47E-02 3.15E-02 U pCi/g 17-10053-08 TRG L310223AFRGS005SSA 04/25/16 13:00 10/11/2017 10/13/2017 17-10053 Cesium-134 EPA 901.1 Modified -5.75E-03 1.89E-02 1.90E-02 4.35E-02 U pCi/g 17-10053-08 TRG L310223AFRGS005SSA 04/25/16 13:00 10/11/2017 10/13/2017 17-10053 Cesium-137 EPA 901.1 Modified 1.83E-02 2.26E-02 2.26E-02 3.79E-02 U pCi/g 17-10053-08 TRG L310223AFRGS005SSA 04/25/16 13:00 10/11/2017 10/13/2017 17-10053 Potassium-40 EPA 901.1 Modified 4.77E+00 6.79E-01 7.22E-01 4.80E-01 pCi/g 17-10053-01 LCS KNOWN 10/11/17 00:00 10/11/2017 10/18/2017 17-10053 Nickel-63 ASTM 3500-Ni Modified 1.59E+03 4.78E+01 pCi/g 17-10053-01 LCS SPIKE 10/11/17 00:00 10/11/2017 10/18/2017 17-10053 Nickel-63 ASTM 3500-Ni Modified 1.71E+03 1.02E+01 1.01E+02 2.33E+00 pCi/g 17-10053-02 MBL BLANK 10/11/17 00:00 10/11/2017 10/18/2017 17-10053 Nickel-63 ASTM 3500-Ni Modified -2.82E-01 1.35E+00 1.35E+00 2.32E+00 U pCi/g 17-10053-03 DUP L310213AFRGS006SSB 04/13/16 13:15 10/11/2017 10/18/2017 17-10053 Nickel-63 ASTM 3500-Ni Modified -2.01E-01 7.18E-01 7.19E-01 1.24E+00 U pCi/g 17-10053-04 DO L310213AFRGS006SSB 04/13/16 13:15 10/11/2017 10/18/2017 17-10053 Nickel-63 ASTM 3500-Ni Modified 2.91E-01 7.05E-01 7.06E-01 1.20E+00 U pCi/g 17-10053-05 TRG L310219BFRGS007SSA 09/27/16 10:05 10/11/2017 10/18/2017 17-10053 Nickel-63 ASTM 3500-Ni Modified -2.31E-01 6.62E-01 6.62E-01 1.14E+00 U pCi/g 17-10053-06 TRG L310223AFRGS003SSB 04/25/16 13:20 10/11/2017 10/18/2017 17-10053 Nickel-63 ASTM 3500-Ni Modified 4.49E-02 6.47E-01 6.47E-01 1.11E+00 U pCi/g 17-10053-07 TRG L310223AFRGS004SSB 04/25/16 13:15 10/11/2017 10/18/2017 17-10053 Nickel-63 ASTM 3500-Ni Modified -4.17E-01 6.58E-01 6.59E-01 1.14E+00 U pCi/g 17-10053-08 TRG L310223AFRGS005SSA 04/25/16 13:00 10/11/2017 10/19/2017 17-10053 Nickel-63 ASTM 3500-Ni Modified -1.42E-01 6.79E-01 6.79E-01 1.17E+00 U pCi/g 17-10053-01 LCS KNOWN 10/11/17 00:00 10/11/2017 10/19/2017 17-10053 Strontium-90 EIChroM SRW01 Modified 6.89E+01 3.86E-01 pCi/g 17-10053-01 LCS SPIKE 10/11/17 00:00 10/11/2017 10/19/2017 17-10053 Strontium-90 EIChroM SRW01 Modified 7.40E+01 1.95E+00 1.03E+01 1.04E+00 pCi/g 17-10053-02 MBL BLANK 10/11/17 00:00 10/11/2017 10/19/2017 17-10053 Strontium-90 EIChroM SRW01 Modified 2.17E-01 1.94E-01 1.97E-01 3.90E-01 U pCi/g 17-10053-03 DUP L310213AFRGS006SSB 04/13/16 13:15 10/11/2017 10/19/2017 17-10053 Strontium-90 EIChroM SRW01 Modified 5.95E-01 2.43E-01 2.57E-01 4.58E-01 pCi/g 17-10053-04 DO L310213AFRGS006SSB 04/13/16 13:15 10/11/2017 10/19/2017 17-10053 Strontium-90 EIChroM SRW01 Modified 4.41E-01 2.17E-01 2.25E-01 4.14E-01 pCi/g 17-10053-05 TRG L310219BFRGS007SSA 09/27/16 10:05 10/11/2017 10/19/2017 17-10053 Strontium-90 EIChroM SRW01 Modified 3.37E-01 2.24E-01 2.28E-01 4.41E-01 U pCi/g 17-10053-06 TRG L310223AFRGS003SSB 04/25/16 13:20 10/11/2017 10/19/2017 17-10053 Strontium-90 EIChroM SRW01 Modified 5.26E-01 2.47E-01 2.58E-01 4.76E-01 pCi/g 17-10053-07 TRG L310223AFRGS004SSB 04/25/16 13:15 10/11/2017 10/19/2017 17-10053 Strontium-90 EIChroM SRW01 Modified 2.44E-01 2.14E-01 2.17E-01 4.32E-01 U pCi/g 17-10053-08 TRG L310223AFRGS005SSA 04/25/16 13:00 10/11/2017 10/19/2017 17-10053 Strontium-90 EIChroM SRW01 Modified 5.66E-01 2.11E-01 2.25E-01 3.89E-01 pCi/g CU=Counting Uncertainty;CSU=Combined Standard Uncertainty (2-sigma);MDA=Minimal Detected Activity;LCS=Laboratory Control Sample;MBL=Blank;DUP=Duplicate;TRG=Normal Sample;DO=Duplicate Original;U=Non-detect

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