ML18052A566
| ML18052A566 | |
| Person / Time | |
|---|---|
| Site: | 07000036 |
| Issue date: | 11/30/2014 |
| From: | Westinghouse |
| To: | Office of Nuclear Material Safety and Safeguards |
| References | |
| HEM-18-7 HDP-RPT-FSS-301 | |
| Download: ML18052A566 (31) | |
Text
Westinghouse Non-Proprietary Class 3 Westinghouse Hematite Decommissioning Project Prepared by:
HDP.RPT-FSS-301 OFF.SITE BORROW SOIL ANALYSIS 2II2 HORINE ROAD. FESTUS. MISSOURI Novemb er 2014 Reviewed by: CL*1\\ssfi u-%V'
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HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 2 of 31 Purpose Borrow soils have been utilized from an off-site source located at 2112 Horine Road in Festus, Missouri, at the Hematite Decommissioning Project (HDP). HDP staff prepared HEM-14-31, Hematite Decommissioning Project: Radiological Testing of Backfill Soil from an Off-site Borrow Location, to inform the U.S. Nuclear Regulatory Commission (NRC) of the measures that HDP was using for radiological testing of backfill soil brought to HDP from off-site borrow locations. The NRC questioned the methodology and conclusions of HEM-14-31. HDP made the decision to collect additional samples and perform statistical analyses on the results of the borrow materials to demonstrate radiological compliance of the soils originating from the 2112 Horine Road location. The intent was also to develop a statistically acceptable methodology for use in assessing soil at other potential offsite borrow locations. This document presents the results of the analyses that were performed.
Sample Collection The radiological data that was used in HEM-14-31 was based on samples collected over a period of years for varying purposes and utilizing differing counting methodologies. To normalize analytical methods and laboratories HDP made the decision to collect an entirely new set of data for these analyses.
The Westinghouse HDP collected and analyzed soil samples from three off-site locations. The first location which is located 3.7 miles northeast of the site at 2112 Horine Road, Festus (identified in Figure 1 as Offsite Deep Backfill) contains borrow soil for use as deep backfill.
The second and third locations are approximately a mile from the HDP site (as identified in Figure 2), and were sites used to establish background soil concentrations for the Hematite Radiological Characterization Report (HRCR) in support of the Hematite Decommissioning Projects Final Status Survey Program. HDP collected new soil samples at 8 sample points at each of the two locations previously specified in the HRCR, as well as at sixteen random locations within the Offsite Deep Backfill area as identified in Figure 3 to better characterize the borrow soils.
Each sample location was sampled in 3 foot intervals to a depth of at least 6 feet, or until refusal was met. Refusal was encountered at one sample location at the deep backfill site, resulting in a total of 31 samples taken from the borrow site. A total of 32 samples were taken from the two reference areas, for a total of 63 samples from all three locations.
All the samples were analyzed for Tc-99 by ICP-MS, isotopic uranium by alpha spectroscopy, and gamma spectroscopy both with and without radium ingrowth.
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 3 of 31 Sample Results Sample results are presented in Tables 1 and 2 for the reference areas and borrow location, respectively. Alpha spectroscopy results are presented for uranium. Gamma spectroscopy results from the final counting (after 21 day ingrowth) are presented for thorium and radium.
Technetium results are from ICP-MS analysis. The following summarizes the analytical results of the soil sample analyses:
Statistical Analysis ProUCL was used to compare the laboratory data for Ra-226, Th-232, U-234, and U-238 from the samples obtained from the offsite borrow location to the data for background reference area soil. ProUCL is a statistical analytical tool to determine if the concentrations of uranium, radium, and thorium were statistically distinguishable from background. This process is consistent with the statistical process described in HEM-10-80 (Chapter 14, Question #4, ML102140158), which included two-sample hypothesis testing performed using the Quantile and Mann-Whitney U tests (referred to as Wilcoxon-Mann-Whitney in ProUCL). A statistical analysis was not performed on the Tc-99 as all sample results were non-detects.
Outlier Determination ProUCL v4.1.01 was used on each data set to determine if potential outliers were present at a 1%
significance level using the Rosner's Outlier Test. Samples that exceed the 1% significance level may be dropped from the data set when performing statistical analyses. Sample 9574-SS-140910-01-34 from one of the reference areas was determined to be an outlier for Th-232 with a value of 0.225 pCi/g. Sample 9498-RU-140903-71-01 from the borrow area was determined to be a outlier for U-234 and U-238 with concentrations of 1.52 and 1.80, respectively. Quantile-quantile (Q-Q) plots of the data sets were produced. The distributions for Th-232, U-234, and U-238 are mostly linear, but the outliers deviate.
Based upon the Rosners test and a review of the Q-Q plots, the Th-232 data for sample 9574-SS-140910-01-34 and the uranium values for sample 9498-RU-140903-71-01 were removed from the data set. The resulting data set was utilized for the statistical analyses that follow. The following summarizes the results after the outliers were removed:
Borrow Reference Borrow Reference Borrow Reference Borrow Reference Borrow Reference Borrow Reference Average Average Average Average Average Average Average Average Average Average Average Average 0.021 0.044 1.051 1.071 1.176 1.017 0.611 0.707 0.028 0.035 0.656 0.738 St Dev St Dev St Dev St Dev St Dev St Dev St Dev St Dev St Dev St Dev St Dev St Dev 0.013 0.058 0.121 0.168 0.131 0.219 0.206 0.235 0.020 0.025 0.251 0.180 Min Min Min Min Min Min Min Min Min Min Min Min
-0.005
-0.014 0.721 0.618 0.788 0.225 0.389 0.345
-0.002
-0.003 0.354 0.379 Max Max Max Max Max Max Max Max Max Max Max Max 0.045 0.205 1.270 1.340 1.340 1.390 1.520 1.160 0.092 0.099 1.800 0.997 U-235 Alpha Spec U-238 Alpha Spec Tc-99 Ra-226 21 Day Ingrowth Th-232 Final Count U-234 Alpha Spec
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 4 of 31 Background Distinguishability The Kruskal-Wallis test was performed on the reference area data set to determine variability in background. The results of the tests indicate that all four isotopes have significant differences among the means at a 95% confidence level.
The concentration level that is indistinguishable from background was then calculated utilizing the methodology presented in Section 13.3 of NUREG-1505. The Th-232 sample result for sample 9574-SS-140910-01-34 was replaced in the test with the average of the remaining data to allow an equal number of values in each data set. The default value of 3 was calculated and used for the Wilcoxon-Mann-Whitney tests. The concentrations relating to the value of 3 for each of the radionuclides follow:
Ra-226 - 0.18 pCi/g Th-232 - 0.30 pCi/g U-234 - 0.59 pCi/g U-238 - 0.37 pCi/g Box Plots Box plots for each radionuclide were prepared to graphically display the data. The comparison is presented in box plot format (Figures 1 to 4). The box plots depict the background reference area soil data and off-site borrow location data through five-number summaries: lower quartile (25th percentile of the data), median (50th percentile of the data), and upper quartile (75th percentile of the data). The boxes illustrate data that range from the lower quartile to the upper quartile. The box plots display differences between the two data populations without assuming an underlying statistical distribution. The offsite borrow location data is reflected on the left side of Figures 4 to 7; the background reference area data is on the right side.
Borrow Reference Borrow Reference Borrow Reference Average Average Average Average Average Average 1.176 1.043 0.580 0.707 0.618 0.738 St Dev St Dev St Dev St Dev St Dev St Dev 0.131 0.168 0.120 0.235 0.137 0.180 Min Min Min Min Min Min 0.788 0.749 0.389 0.345 0.354 0.379 Max Max Max Max Max Max 1.340 1.390 0.820 1.160 0.922 0.997 Th-232 Final Count U-234 Alpha Spec U-238 Alpha Spec
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 5 of 31 Wilcoxon-Mann-Whitney Tests Wilcoxon-Mann Whitney tests were performed for each radionuclide to determine if the median of the concentrations from the borrow area differ from the reference areas. Form 2 of the test was used, with a null hypothesis of the borrow materials and a mean greater than the reference area. The value of 3 was used for each radionuclide as a substantial difference. A 95%
confidence level was utilized for each test.
The Wilcoxon-Mann-Whitney tests concluded that Ra-226, U-235, U-234 and U-238 from offsite fill locations were determined to be indistinguishable from the background reference area soil data plus the concentration level that is indistinguishable from background (substantial difference). Appendix A contains the output from ProUCL for the Wilcoxon-Mann-Whitney tests. Table 3 presents the data sets utilized for the ProUCL statistical tests.
Quantile Tests Quantile tests were performed for each radionuclide to compare the upper tails of the borrow and reference area data sets. ProUCL was used to perform the Quantile test for each of the radionuclides. All four radionuclides passed the Quantile test at a 95% confidence level.
Appendix B contains the output from ProUCL for the Quantile tests.
Retrospective Power Retrospective power curves were created for each Wilcoxon-Mann-Whitney test. The derived concentration guideline level was set as the mean plus the 3 value. The standard deviation was input and the lower bound of the gray region was set at the median. A 0.05 alpha error and 0.1 beta error was utilized. The resulting sample sizes follow:
Ra-226 - 17 samples Th-232 - 10 samples U-234 - 7 samples U-238 - 8 samples Appendix C presents the retrospective power curves for each radionuclides Wilcoxon-Mann-Whitney test.
Laboratory Intercomparison Field duplicate samples were obtained at a rate of 1 per 20 samples. The field duplicate was analyzed by GEL Laboratories, whereas the main sample set was analyzed at Test America Laboratories. The duplicate results were evaluated per HDP-PR-HP-425, Sample Analysis Quality Control, which includes evaluation per Section 7.4.1.1 of the Multi-Agency Radiological
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 6 of 31 Laboratory Analytical Protocols (MARLAP) Manual. All detected radionuclides were evaluated and none exceeded either the warning or control limit.
Conclusion To demonstrate the suitability of using borrow material from 2112 Horine Road, Festus, MO for deep backfill at the Hematite site, HDP staff prepared and provided to the NRC HEM-14-31, Hematite Decommissioning Project: Radiological Testing of Backfill Soil from an Off-site Borrow Location. Because the NRC questioned the methodology and conclusions of HEM 31, HDP collected additional soil samples and modified the statistical analyses to provide a more rigorous basis for concluding the borrow material was acceptable. The subsequent statistical analysis showed that the number of samples collected was more than sufficient to support the statistical methodology, and that based upon the non-detects of T-99 and the analysis of Ra-226, Th-232, U-234 and U-238, the borrow material from 2112 Horine Road is suitable for use as deep backfill at the Hematite Decommissioning Project.
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 7 of 31 Figure 1 - Top Soil and Deep Backfill Locations
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 8 of 31 Figure 2 - Hematite Site Background Sample Locations
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 9 of 31 Figure 3 - Deep Backfill Sample Locations
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 10 of 31 Figure 4 - Radium-226 Box Plot
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 11 of 31 Figure 5 - Thorium-232 Box Plot
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 12 of 31 Figure 6 - U-234 Box Plot
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 13 of 31 Figure 7 - U-238 Box Plot
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 14 of 31 Table 1 - Reference Area Analytical Results Result Error MDC Result Error MDC Result Error MDC Result Error MDC Result Error MDC Result Error MDC 9574-SS-140910-01-01 9/10/2014 0.06 0.0254 0.228 1.15 0.164 0.0678 1.15 0.178 0.133 0.671 0.181 0.0502 0.0223 0.0395 0.0713 0.724 0.189 0.0501 9574-SS-140910-01-02 9/10/2014 0.0451 0.143 0.212 0.719 0.103 0.0447 0.749 0.12 0.0896 0.353 0.129 0.0505 0.0112 0.0281 0.0629 0.379 0.135 0.0676 9574-SS-140910-01-03 9/10/2014 0.0272 0.116 0.214 1.04 0.166 0.0772 0.936 0.183 0.145 0.518 0.164 0.0617 0.0148 0.0296 0.0444 0.723 0.195 0.0356 9574-SS-140910-01-04 9/10/2014 0.00489 0.161 0.222 1.01 0.138 0.0513 0.962 0.171 0.0901 0.39 0.138 0.0344 0.0143 0.0286 0.0428 0.591 0.172 0.0595 9574-SS-140910-01-05 9/10/2014 0.000801 0.00339 0.2 0.995 0.16 0.0848 0.948 0.178 0.0908 0.345 0.163 0.0834 0
0.00855 0.0684 0.421 0.179 0.0549 9574-SS-140910-01-07 9/10/2014 0.0923 0.17 0.209 0.858 0.133 0.0642 0.831 0.15 0.11 0.512 0.16 0.0349 0.038 0.0508 0.0752 0.453 0.15 0.0348 9574-SS-140910-01-08 9/10/2014 0.205 0.439 0.213 1.03 0.143 0.064 0.979 0.139 0.0868 0.832 0.21 0.0748 0
0.00539 0.0431 0.632 0.179 0.0525 9574-SS-140910-01-09 9/10/2014 0.186 0.235 0.226 1.08 0.169 0.0702 0.768 0.188 0.184 0.484 0.159 0.0554 0.0426 0.0529 0.0689 0.493 0.161 0.0631 9574-SS-140910-01-10 9/10/2014 0.0546 0.129 0.22 1.17 0.174 0.0772 1.16 0.191 0.143 0.571 0.169 0.0644 0.0343 0.0497 0.0801 0.757 0.196 0.0339 9574-SS-140910-01-11 9/10/2014 0.0506 0.165 0.22 0.972 0.136 0.0838 0.977 0.142 0.0792 0.606 0.174 0.0587 0.0281 0.0398 0.0422 0.575 0.168 0.0338 9574-SS-140910-01-12 9/10/2014 0.0186 0.0775 0.221 1.22 0.184 0.0858 1.14 0.21 0.139 0.747 0.199 0.0541 0.0564 0.0596 0.0673 0.997 0.233 0.0356 9574-SS-140910-01-13 9/10/2014 0.196 0.214 0.228 1.02 0.14 0.0759 0.978 0.157 0.0959 0.724 0.198 0.0368 0.0458 0.053 0.0458 0.744 0.201 0.0557 9574-SS-140910-01-14 9/10/2014 0.0705 0.0929 0.214 1.05 0.146 0.0605 0.889 0.156 0.0802 0.705 0.193 0.0614 0.0294 0.0417 0.0441 0.607 0.178 0.0671 9574-SS-140910-01-15 9/10/2014 0.0174 0.0329 0.226 0.805 0.121 0.0579 0.871 0.14 0.11 0.434 0.145 0.0583
-0.00262 0.00524 0.0636 0.594 0.171 0.0336 9574-SS-140910-01-16 9/10/2014 0.000929 0.0403 0.232 1.32 0.201 0.0904 1.07 0.189 0.153 0.513 0.152 0.0537 0.049 0.0518 0.0585 0.835 0.198 0.0309 9574-SS-140910-01-17 9/10/2014 0.00743 0.045 0.225 1.19 0.165 0.0698 1.1 0.179 0.129 0.639 0.183 0.0619 0.0241 0.0427 0.077 0.844 0.213 0.0357 9574-SS-140910-01-18 9/10/2014
-0.00742 0.0464 0.212 1.34 0.193 0.0845 1.19 0.2 0.117 0.808 0.2 0.0618 0.038 0.0472 0.0615 0.745 0.191 0.0493 9574-SS-140910-01-20 9/11/2014
-0.0141 0.0477 0.205 1.26 0.206 0.109 1.01 0.197 0.176 1.12 0.241 0.0571 0.0683 0.0614 0.041 0.71 0.187 0.0499 9574-SS-140910-01-21 9/11/2014 0.0192 0.0727 0.234 1.07 0.156 0.0738 0.982 0.153 0.124 1.04 0.232 0.0504 0.0276 0.039 0.0413 0.705 0.187 0.0503 9574-SS-140910-01-22 9/11/2014 0.0451 0.0593 0.229 0.922 0.131 0.0573 1.21 0.17 0.106 0.829 0.215 0.0646 0.0126 0.0315 0.0705 0.981 0.236 0.0372 9574-SS-140910-01-23 9/11/2014 0.0064 0.0542 0.229 1.13 0.17 0.0835 1.37 0.229 0.115 1.14 0.254 0.0553 0.0728 0.0681 0.0688 0.994 0.235 0.0364 9574-SS-140910-01-24 9/11/2014 0.112 0.132 0.231 1.2 0.165 0.0649 1.39 0.221 0.131 1.09 0.247 0.0546 0.0243 0.043 0.0776 0.992 0.234 0.0545 9574-SS-140910-01-25 9/11/2014 0.0568 0.11 0.242 1.23 0.164 0.0653 0.99 0.156 0.126 0.887 0.216 0.0526 0.0691 0.0647 0.0654 0.959 0.226 0.0703 9574-SS-140910-01-26 9/11/2014 0.0376 0.147 0.228 1.08 0.159 0.079 1.21 0.179 0.106 0.73 0.219 0.078 0.0187 0.0374 0.056 0.764 0.223 0.0449 9574-SS-140910-01-27 9/11/2014 0.00356 0.0663 0.237 1.31 0.185 0.0818 1.05 0.163 0.11 1.16 0.255 0.0357 0.0592 0.0594 0.0444 0.956 0.228 0.0616 9574-SS-140910-01-28 9/11/2014 0.00967 0.0958 0.23 1.28 0.188 0.089 1.39 0.201 0.131 0.871 0.217 0.0545 0.0595 0.0597 0.0447 0.895 0.22 0.0358 9574-SS-140910-01-29 9/11/2014 0.0735 0.0242 0.245 1.08 0.154 0.0808 0.955 0.16 0.146 0.842 0.208 0.0587 0.0114 0.0286 0.064 0.708 0.189 0.0513 9574-SS-140910-01-30 9/11/2014 0.0154 0.0133 0.23 0.96 0.161 0.0864 0.851 0.166 0.156 0.744 0.196 0.0349 0.0723 0.065 0.0434 0.787 0.203 0.0528 9574-SS-140910-01-31 9/11/2014
-0.00068 0.0573 0.225 1.06 0.146 0.0498 1.1 0.159 0.089 0.572 0.17 0.0695 0.0992 0.0754 0.0425 0.986 0.228 0.0517 9574-SS-140910-01-32 9/11/2014 0.000231 0.0252 0.231 1.06 0.157 0.0709 1.17 0.177 0.0776 0.598 0.174 0.0602 0.0576 0.0578 0.0432 0.758 0.198 0.06 9574-SS-140910-01-33 9/11/2014 0.007 0.0391 0.233 1.03 0.147 0.0689 0.954 0.153 0.119 0.772 0.196 0.0504 0.0138 0.0276 0.0413 0.828 0.203 0.0331 9574-SS-140910-01-34 9/11/2014 0.00142 0.0793 0.202 0.618 0.0993 0.04 0.225 0.0848 0.0991 0.389 0.138 0.0524 0.0143 0.0287 0.043 0.494 0.156 0.0345 Average Average Average Average Average Average 0.044 1.071 1.017 0.707 0.035 0.738 St Dev St Dev St Dev St Dev St Dev St Dev 0.058 0.168 0.219 0.235 0.025 0.180 Min Min Min Min Min Min
-0.014 0.618 0.225 0.345
-0.003 0.379 Max Max Max Max Max Max 0.205 1.340 1.390 1.160 0.099 0.997 Sample Date Reference Area Results Technetium-99 (pCi/g)
Radium-226 (pCi/g) 21 Day Ingrowth Thorium-232 (pCi/g) (Ac-228)
Final Count Uranium-234 (pCi/g) Alpha Spec Uranium-235 (pCi/g) Alpha Spec Uranium-238 (pCi/g) Alpha Spec Sample ID
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 15 of 31 Table 2 - Borrow Area Analytical Results Result Error MDC Result Error MDC Result Error MDC Result Error MDC Result Error MDC Result Error MDC 9498-RU-140903-31-01 9/5/2014 0.0204 0.0317 0.208 1.1 0.163 0.0784 1.09 0.166 0.0909 0.498 0.163 0.0784 0.0273 0.0431 0.0687 0.518 0.165 0.0551 9498-RU-140903-31-02 9/5/2014 0.0429 0.0695 0.201 1.15 0.171 0.0796 1.31 0.201 0.0655 0.539 0.157 0.0585 0.0256 0.0363 0.0384 0.573 0.161 0.0467 9498-RU-140903-32-01 9/3/2014 0.0283 0.0258 0.213 1.23 0.202 0.102 0.932 0.201 0.256 0.746 0.19 0.0611 0.0401 0.0464 0.0401 0.739 0.189 0.0321 9498-RU-140903-32-02 9/3/2014 0.0309 0.0799 0.216 1.14 0.16 0.0691 1.12 0.166 0.108 0.82 0.214 0.0567 0.0126 0.0316 0.0706 0.796 0.21 0.0373 9498-RU-140903-41-01 9/4/2014 0.033 0.0371 0.207 1.22 0.189 0.078 1.31 0.211 0.126 0.59 0.169 0.0571 0
0.00513 0.0411 0.446 0.146 0.057 9498-RU-140903-41-02 9/4/2014 0.0141 0.0107 0.199 0.721 0.111 0.058 0.788 0.144 0.0969 0.408 0.14 0.0579 0.0139 0.0278 0.0416 0.61 0.173 0.0507 9498-RU-140903-42-01 9/4/2014 0.0214 0.0448 0.214 1.03 0.16 0.0737 1.31 0.244 0.118 0.504 0.157 0.0512 0.028 0.0396 0.042 0.557 0.166 0.0583 9498-RU-140903-42-02 9/4/2014 0.00993 0.0444 0.211 0.862 0.127 0.0642 1.04 0.15 0.102 0.508 0.154 0.0685 0.0263 0.0373 0.0395 0.505 0.152 0.0481 9498-RU-140903-43-01 9/4/2014 0.0295 0.0201 0.219 0.99 0.168 0.0906 1.26 0.199 0.0729 0.481 0.152 0.063 0.0525 0.0555 0.0627 0.561 0.165 0.0503 9498-RU-140903-43-02 9/4/2014
-0.00493 0.0175 0.224 0.948 0.136 0.0619 1.22 0.189 0.105 0.577 0.17 0.0687 0.0254 0.04 0.0637 0.703 0.188 0.0583 9498-RU-140903-44-01 9/4/2014 0.00535 0.0606 0.214 0.931 0.172 0.113 1.22 0.206 0.156 0.432 0.141 0.0552 0.0265 0.0375 0.0397 0.601 0.168 0.0551 9498-RU-140903-44-02 9/4/2014
-0.00295 0.0407 0.211 0.946 0.137 0.064 1.14 0.173 0.113 0.596 0.175 0.0534 0.0146 0.0292 0.0438 0.48 0.155 0.0351 9498-RU-140903-51-01 9/4/2014 0.018 0.0835 0.206 1.08 0.171 0.0784 0.812 0.183 0.188 0.585 0.161 0.0303 0.0251 0.0356 0.0377 0.796 0.191 0.0302 9498-RU-140903-51-02 9/4/2014 0.0258 0.0575 0.219 0.929 0.14 0.0735 1.18 0.192 0.107 0.434 0.144 0.0626 0.0137 0.0274 0.0411 0.472 0.149 0.0329 9498-RU-140903-52-01 9/3/2014
-0.00488 0.0198 0.212 1.08 0.178 0.0973 1.27 0.21 0.11 0.554 0.166 0.0517 0.0539 0.0569 0.0643 0.601 0.173 0.034 9498-RU-140903-52-02 9/3/2014 0.0276 0.0883 0.204 1.09 0.167 0.0792 1.19 0.199 0.104 0.606 0.173 0.0713 0.0111 0.0279 0.0624 0.646 0.177 0.05 9498-RU-140903-61-01 9/4/2014 0.0229 0.0273 0.214 1.18 0.171 0.0782 1.21 0.185 0.12 0.538 0.158 0.0595 0.0391 0.0452 0.0391 0.583 0.164 0.0476 9498-RU-140903-61-02 9/4/2014 0.0151 0.0181 0.21 0.846 0.12 0.0741 1.26 0.182 0.101 0.547 0.167 0.0657 0.0144 0.0287 0.0431 0.47 0.153 0.0524 9498-RU-140903-62-01 9/5/2014 0.022 0.0632 0.209 1.27 0.18 0.0801 1.19 0.178 0.117 0.577 0.186 0.0721 0.0658 0.0696 0.0786 0.731 0.211 0.063 9498-RU-140903-62-02 9/5/2014 0.0171 0.044 0.204 1.08 0.152 0.0646 1.14 0.177 0.119 0.773 0.201 0.0702 0
0.00536 0.0429 0.757 0.197 0.0344 9498-RU-140903-63-01 9/3/2014 0.0448 0.0815 0.216 1.17 0.185 0.0886 1.26 0.221 0.113 0.788 0.197 0.0619 0.0381 0.0473 0.0616 0.76 0.193 0.0326 9498-RU-140903-63-02 9/3/2014 0.0254 0.0635 0.215 1.13 0.162 0.0706 1.13 0.195 0.137 0.69 0.188 0.0649 0.0426 0.0493 0.0426 0.922 0.219 0.0342 9498-RU-140903-71-01 9/3/2014 0.0262 0.0231 0.213 1.07 0.176 0.103 1.2 0.233 0.12 1.52 0.423 0.178 0.0917 0.114 0.148 1.8 0.46 0.0785 9498-RU-140903-71-02 9/3/2014 0.0223 0.0957 0.21 0.964 0.141 0.0939 1.23 0.183 0.1 0.508 0.152 0.0629 0.0361 0.0448 0.0584 0.605 0.166 0.0468 9498-RU-140903-81-01 9/4/2014 0.0217 0.0251 0.222 1.02 0.153 0.0754 1.26 0.194 0.108 0.426 0.136 0.0304
-0.00236 0.00473 0.0574 0.354 0.123 0.0303 9498-RU-140903-82-01 9/5/2014 0.0265 0.0256 0.209 1.05 0.163 0.0753 1.17 0.183 0.137 0.687 0.179 0.0312 0.0235 0.037 0.059 0.499 0.15 0.0312 9498-RU-140903-82-02 9/5/2014 0.00615 0.0365 0.212 0.988 0.147 0.0706 1.21 0.181 0.109 0.5 0.151 0.0587 0
0.00481 0.0385 0.472 0.145 0.0469 9498-RU-140903-91-01 9/4/2014 0.0172 0.0316 0.208 1.15 0.175 0.0796 1.34 0.21 0.114 0.754 0.195 0.0717 0.0388 0.0482 0.0628 0.619 0.174 0.0332 9498-RU-140903-91-02 9/4/2014 0.0426 0.0227 0.213 1.05 0.172 0.0888 1.23 0.211 0.0863 0.643 0.178 0.0742 0.0221 0.0391 0.0706 0.776 0.196 0.0665 9498-RU-140903-92-01 9/5/2014 0.0127 0.0946 0.223 1.14 0.162 0.0692 1.23 0.186 0.115 0.713 0.21 0.0732 0.0142 0.0357 0.0798 0.844 0.229 0.0422 9498-RU-140903-92-02 9/5/2014 0.0224 0.0233 0.208 1.04 0.155 0.0724 1.21 0.175 0.0821 0.389 0.134 0.0552 0.0397 0.046 0.0397 0.55 0.16 0.0483 Average Average Average Average Average Average 0.021 1.051 1.176 0.611 0.028 0.656 St Dev St Dev St Dev St Dev St Dev St Dev 0.013 0.121 0.131 0.206 0.020 0.251 Min Min Min Min Min Min
-0.005 0.721 0.788 0.389
-0.002 0.354 Max Max Max Max Max Max 0.045 1.270 1.340 1.520 0.092 1.800 Uranium-238 (pCi/g) Alpha Spec Borrow Area Results Sample ID Sample Date Technetium-99 (pCi/g)
Radium-226 (pCi/g) 21 Day Ingrowth Thorium-232 (pCi/g) (Ac-228)
Final Count Uranium-234 (pCi/g) Alpha Spec Uranium-235 (pCi/g) Alpha Spec
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 16 of 31 Table 3 - ProUCL Data Sets Borrow Reference Borrow Reference Borrow Reference Borrow Reference 1.1 1.15 1.09 1.15 0.498 0.671 0.518 0.724 1.15 0.719 1.31 0.749 0.539 0.353 0.573 0.379 1.23 1.04 0.932 0.936 0.746 0.518 0.739 0.723 1.14 1.01 1.12 0.962 0.82 0.39 0.796 0.591 1.22 0.995 1.31 0.948 0.59 0.345 0.446 0.421 0.721 0.858 0.788 0.831 0.408 0.512 0.61 0.453 1.03 1.03 1.31 0.979 0.504 0.832 0.557 0.632 0.862 1.08 1.04 0.768 0.508 0.484 0.505 0.493 0.99 1.17 1.26 1.16 0.481 0.571 0.561 0.757 0.948 0.972 1.22 0.977 0.577 0.606 0.703 0.575 0.931 1.22 1.22 1.14 0.432 0.747 0.601 0.997 0.946 1.02 1.14 0.978 0.596 0.724 0.48 0.744 1.08 1.05 0.812 0.889 0.585 0.705 0.796 0.607 0.929 0.805 1.18 0.871 0.434 0.434 0.472 0.594 1.08 1.32 1.27 1.07 0.554 0.513 0.601 0.835 1.09 1.19 1.19 1.1 0.606 0.639 0.646 0.844 1.18 1.34 1.21 1.19 0.538 0.808 0.583 0.745 0.846 1.26 1.26 1.01 0.547 1.12 0.47 0.71 1.27 1.07 1.19 0.982 0.577 1.04 0.731 0.705 1.08 0.922 1.14 1.21 0.773 0.829 0.757 0.981 1.17 1.13 1.26 1.37 0.788 1.14 0.76 0.994 1.13 1.2 1.13 1.39 0.69 1.09 0.922 0.992 1.07 1.23 1.2 0.99 0.887 0.959 0.964 1.08 1.23 1.21 0.508 0.73 0.605 0.764 1.02 1.31 1.26 1.05 0.426 1.16 0.354 0.956 1.05 1.28 1.17 1.39 0.687 0.871 0.499 0.895 0.988 1.08 1.21 0.955 0.5 0.842 0.472 0.708 1.15 0.96 1.34 0.851 0.754 0.744 0.619 0.787 1.05 1.06 1.23 1.1 0.643 0.572 0.776 0.986 1.14 1.06 1.23 1.17 0.713 0.598 0.844 0.758 1.04 1.03 1.21 0.954 0.389 0.772 0.55 0.828 0.618 0.389 0.494 Ra-226 Th-232 U-234 U-238
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 17 of 31 Appendix A ProUCL Output - Wilcoxson-Mann-Whitney Tests (4 Pages)
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 18 of 31 Appendix A ProUCL Output - Wilcoxson-Mann-Whitney Tests Page 1 of 4
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 19 of 31 Appendix A ProUCL Output - Wilcoxson-Mann-Whitney Tests Page 2 of 4
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 20 of 31 Appendix A ProUCL Output - Wilcoxson-Mann-Whitney Tests Page 3 of 4
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 21 of 31 Appendix A ProUCL Output - Wilcoxson-Mann-Whitney Tests Page 4 of 4
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 22 of 31 Appendix B ProUCL Output - Quantile Tests (4 Pages)
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 23 of 31 Appendix B ProUCL Output - Quantile Tests Page 1 of 4
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 24 of 31 Appendix B ProUCL Output - Quantile Tests Page 2 of 4
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 25 of 31 Appendix B ProUCL Output - Quantile Tests Page 3 of 4
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 26 of 31 Appendix B ProUCL Output - Quantile Tests Page 4 of 4
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 27 of 31 Appendix C Retrospective Power Curves (4 Pages)
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 28 of 31 Appendix C Retrospective Power Curves Page 1 of 4 Ra-226 Retrospective Power Curve
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 29 of 31 Appendix C Retrospective Power Curves Page 2 of 4 Th-232 Retrospective Power Curve
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 30 of 31 Appendix C Retrospective Power Curves Page 3 of 4 U-234 Retrospective Power Curve
HDP-RPT-FSS-301 OFF-SITE BORROW SOIL ANALYSIS November 2014 2112 HORINE ROAD, FESTUS, MISSOURI Page 31 of 31 Appendix C Retrospective Power Curves Page 4 of 4 U-238 Retrospective Power Curve