ML24260A052
| ML24260A052 | |
| Person / Time | |
|---|---|
| Site: | 07000925 (SNM-0928) |
| Issue date: | 09/12/2024 |
| From: | Lux J Cimarron Environmental Response Trust, Environmental Properties Management |
| To: | Miller R, James Smith Document Control Desk, Office of Nuclear Material Safety and Safeguards, State of OK, Dept of Environmental Quality (DEQ) |
| References | |
| Download: ML24260A052 (1) | |
Text
Page 1of 4 September 12, 2024 Mr. James Smith U.S. Nuclear Regulatory Commission 11555 Rockville Pike Rockville, MD 20852-2738 Ms. Rachel Miller Oklahoma Department of Environmental Quality 707 North Robinson Oklahoma City, OK 73101 Re: Docket No. 07000925; License No. SNM-928 Cimarron Environmental Response Trust Uranium in Groundwater in the Southern Portion of BA1
Dear Recipients:
Solely as Trustee for the Cimarron Environmental Response Trust (CERT), Environmental Properties Management LLC (EPM) submits herein updated information on the concentration of uranium in groundwater in Burial Area #1 (BA1) at the Cimarron site.
EPM submitted a response to concerns regarding seepage of groundwater and injected treated water expressed by the U. S. Nuclear Regulatory Commission (NRC) in Response to NRC Concerns Regarding Potential Seepage in Burial Area #1 (ML24052A360) on February 21, 2024. Following surveillance of the area of concern (the southern portion of BA1), EPM submitted Updated Information Regarding Potential for Seepage in Burial Area #1 (ML24191A451) on July 9, 2024.
Both of these submittals noted that groundwater is migrating to the north, and the concentration of uranium in groundwater in the southern portion of BA1 has been declining to less than the NRC Criterion in much of the subject area.
EPM met with the Oklahoma Department of Environmental Quality (DEQ) on May 29, 2024.
The declining concentration of uranium in groundwater in this area was discussed, and EPM pointed out that some of the locations in which uranium concentrations still exceeded the NRC Criterion had not been sampled for over six years. The DEQ recommended collecting groundwater samples from the five locations where current uranium concentration data was particularly needed.
EPM obtained approval from both the NRC and the DEQ to collect groundwater samples from 5 monitor wells in the southern portion of BA1 for which the most recent groundwater data was from 2017 or 2018. Groundwater samples were collected from monitor wells 02W40, 02W41,
Page 2of 4 02W47, TMW-01, and TMW-25 on July 31, 2024. Analytical results were received August 21, 2024, and all results passed data quality review with no additional qualifiers required.
The July 9, 2024, submittal presented all the uranium concentration data for monitor wells in the subject area that was available at that time. The July 9, 2024, submittal included a figure depicting the locations of monitor wells, with annotations showing whether the concentration of uranium in groundwater was currently less than the State Criterion (the Maximum Concentration Level, or MCL) of 20 micrograms per liter (20 ug/L), between the MCL and the NRC Criterion (the Derived Concentration Goal Level, or DCGL) of 180 picocuries per liter (pCi/L), or above the DCGL. presents all uranium concentration data for monitor wells in the subject area, including that obtained from the July 2024 sampling event. Attachment 2 presents a figure indicating the relative uranium concentration at each location. The results are encouraging; uranium concentrations have declined at all locations excluding the northernmost monitor well, TMW-01, which is now one of only two monitor wells south of Extraction Trench GETR-BA1-01 that yield groundwater containing a uranium concentration exceeding the NRC Criterion.
Please let us know if you have any questions or desire clarification.
Sincerely, Jeff Lux Project Manager Attachments:
x Attachment 1 - Uranium Data for Monitor Wells in the SE Portion of BA1 x Attachment 2 - Figure - Southeastern Area of BA1 - Rev 2 cc: (electronic copies only)
Stephanie Anderson and Linda Gersey, NRC Region IV Paul Davis, Keisha Cornelius, Courtney Redmond, Lee Dooley, David Cates, and Jonathan Reid, DEQ NRC Public Document Room vcpsubmittals@deq.ok.gov
ATTACHMENT 1 - URANIUM DATA FOR MONITOR WELLS IN THE SOUTHEASTERN PORTION OF BA1
Table 1a - Uranium Data Southeastern Portion of Burial Area #1 02W Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-234 1.45 pci/L Uranium-235 pci/L U
Uranium-238 0.649 pci/L Uranium-234 1.19 pci/L Uranium-235 pci/L U
Uranium-238 0.579 pci/L Uranium-234 3.35 pci/L Uranium-235 0.220 pci/L Uranium-238 2.01 pci/L Uranium-234 1.12 pci/L Uranium-235 0.0755 pci/L Uranium-238 0.638 pci/L Uranium-233/234 0.903 pci/L Uranium-235/236 0.109 pci/L Uranium-238 0.443 pci/L Uranium-234 0.436 pci/L U
Uranium-235
-0.0702 pci/L U
Uranium-238 0.702 pci/L Uranium-233/234 4.52 pci/L Uranium-235/236 0.812 pci/L Uranium-238 2.69 pci/L Uranium-233/234 0.989 pci/L Uranium-235/236 0.268 pci/L U
Uranium-238 1.16 pci/L Uranium-233/234 0.871 pci/L Uranium-235/236
-0.025 pci/L U
Uranium-238 0.403 pci/L U
Uranium-233/234 1.65 pci/L Uranium-235/236 0.559 pci/L Uranium-238 1.08 pci/L Uranium-233/234 4.56 pci/L Uranium-235/236 0.218 pci/L U
Uranium-238 3.21 pci/L Uranium-235 0.067 ug/L J
Uranium-238 6.63 ug/L J
Uranium-233/234 3.24 pci/L Uranium-235/236 0.432 pci/L Uranium-238 2.77 pci/L Uranium-235 0.044 ug/L J
Uranium-238 4.09 ug/L U
02W09 6
2 2
6 1
2 8
1 1
2 3
7 8
4 2004-09-02 2002-08-26 2017-05-02 2018-06-13 2016-05-10 2015-03-25 2014-05-28 2013-05-14 2012-08-03 2011-08-17 2010-10-18 2009-05-28 Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Matt Crawford Date: 9/4/2024 Revised 8/29/2024 Page 1 of 18
Table 1a - Uranium Data Southeastern Portion of Burial Area #1 02W Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-235 0.014 ug/L J
Uranium-238 1.59 ug/L Uranium-233/234 5.12 pci/L Uranium-235/236 0.635 pci/L U
Uranium-238 1.89 pci/L Uranium-235 0.030 ug/L J
Uranium-238 3.07 ug/L Uranium-233/234 0.994 pci/L Uranium-235/236 0.18 pci/L U
Uranium-238 0.941 pci/L Uranium-235 0.026 ug/L J
Uranium-238 2.31 ug/L Uranium-233/234 3.55 pci/L Uranium-235/236 0.093 pci/L U
Uranium-238 2.49 pci/L Uranium-235 0.085 ug/L Uranium-238 7.71 ug/L Uranium-233/234 1.03 pci/L Uranium-235/236 0.137 pci/L U
Uranium-238 0.839 pci/L Uranium-235 0.021 ug/L J
Uranium-238 2.20 ug/L Uranium-233/234 1.23 pci/L Uranium-235/236 0.047 pci/L U
Uranium-238 0.75 pci/L Uranium-235 0.033 ug/L J
Uranium-238 3.23 ug/L Uranium-235 0.027 ug/L J
Uranium-238 2.91 ug/L Uranium-234 1.29 pci/L Uranium-235 pci/L U
Uranium-238 0.835 pci/L Uranium-234 0.778 pci/L Uranium-235 0.168 pci/L J
Uranium-238 0.602 pci/L J
Uranium-233/234 0.156 pci/L U
Uranium-235/236
-0.026 pci/L U
Uranium-238 0.153 pci/L U
Uranium-233/234 0.683 pci/L Uranium-235/236 0.186 pci/L U
Uranium-238 0.411 pci/L U
02W20 2
3 2
2 2
8 1
0 2
3 2
2 3
8 2
6 2024-04-17 2018-09-17 2015-03-25 2013-05-21 2004-09-07 2002-08-26 2023-07-13 2022-07-14 2021-07-06 2020-07-22 2019-08-27 02W09 (continued)
Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Matt Crawford Date: 9/4/2024 Revised 8/29/2024 Page 2 of 18
Table 1a - Uranium Data Southeastern Portion of Burial Area #1 02W Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-235 0.016 ug/L J
Uranium-238 1.53 ug/L Uranium-235 0.01 ug/L U
Uranium-238 0.547 ug/L Uranium-235 0.01 ug/L U
Uranium-238 0.981 ug/L Uranium-235 0.01 ug/L U
Uranium-238 0.674 ug/L Uranium-235 0.01 ug/L U
Uranium-238 0.494 ug/L Uranium-235 0.01 ug/L U
Uranium-238 0.746 ug/L Uranium-235 0.011 ug/L J
Uranium-238 1.31 ug/L Uranium-235 0.01 ug/L U
Uranium-238 0.817 ug/L Uranium-235 0.010 ug/L U
Uranium-238 0.435 ug/L Uranium-235 0.010 ug/L U
Uranium-238 0.647 ug/L Uranium-235 0.010 ug/L J
Uranium-238 1.36 ug/L Uranium-235 0.010 ug/L U
Uranium-238 0.83 ug/L Uranium-235 0.010 ug/L U
Uranium-238 0.355 ug/L Uranium-235 0.010 ug/L U
Uranium-238 0.493 ug/L Uranium-235 0.010 ug/L U
Uranium-238 0.551 ug/L Uranium-234 8.24 pci/L Uranium-235 pci/L U
Uranium-238 4.20 pci/L Uranium-234 1.36 pci/L Uranium-235 pci/L U
Uranium-238 0.71 pci/L Uranium-233/234 3.49 pci/L Uranium-235/236 0.153 pci/L U
Uranium-238 1.93 pci/L 02W20 (continued) 02W26 6
2 12 1
1 1
1 1
2 0
1 1
1 0
1 1
1 1
2020-10-12 2021-07-15 2021-04-15 2022-04-20 2022-01-19 2020-07-16 2020-04-16 2019-01-31 2018-09-17 2017-04-25 2021-10-14 2013-05-21 2004-09-07 2002-08-26 2023-07-21 2022-10-20 2022-07-08 2021-01-22 Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Matt Crawford Date: 9/4/2024 Revised 8/29/2024 Page 3 of 18
Table 1a - Uranium Data Southeastern Portion of Burial Area #1 02W Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-233/234 0.966 pci/L Uranium-235/236 0.077 pci/L U
Uranium-238 0.385 pci/L Uranium-235 0.026 ug/L J
Uranium-238 2.74 ug/L Uranium-234 921 pci/L Uranium-235 120 pci/L X
Uranium-238 525 pci/L Uranium-234 1050 pci/L Uranium-235 114 pci/L Uranium-238 681 pci/L Uranium-233/234 869 pci/L Uranium-235/236 48.7 pci/L Uranium-238 617 pci/L Uranium-233/234 392 pci/L Uranium-235/236 25.2 pci/L Uranium-238 246 pci/L Uranium-235 8.16 ug/L Uranium-238 727 ug/L Uranium-235 6.31 ug/L Uranium-238 534 ug/L Uranium-235 5.49 ug/L Uranium-238 454 ug/L Uranium-235 5.93 ug/L Uranium-238 471 ug/L Uranium-235 5.35 ug/L Uranium-238 434 ug/L Uranium-235 6.90 ug/L Uranium-238 596 ug/L Uranium-235 4.78 ug/L Uranium-238 373 ug/L Uranium-235 4.73 ug/L Uranium-238 345 ug/L Uranium-235 4.81 ug/L Uranium-238 361 ug/L Uranium-235 3.44 ug/L Uranium-238 259 ug/L Uranium-235 4.95 ug/L Uranium-238 367 ug/L 02W26 (continued) 02W29 / TR-10 3
2021-04-15 2021-01-21 1
735 663 1,535 1,845 366 1,566 350 378 603 439 477 459 540 372 262 2019-08-29 2015-03-25 2013-05-28 2004-09-07 2019-01-31 2018-09-17 2018-08-24 2017-12-04 2017-04-25 2002-08-27 2017-04-25 2015-03-25 2020-10-12 2020-07-16 2020-04-16 Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Matt Crawford Date: 9/4/2024 Revised 8/29/2024 Page 4 of 18
Table 1a - Uranium Data Southeastern Portion of Burial Area #1 02W Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-235 4.42 ug/L Uranium-238 341 ug/L Uranium-235 3.79 ug/L Uranium-238 283 ug/L Uranium-235 3.38 ug/L Uranium-238 264 ug/L Uranium-235 3.08 ug/L Uranium-238 222 ug/L Uranium-235 3.56 ug/L Uranium-238 255 ug/L Uranium-235 2.30 ug/L Uranium-238 179 ug/L Uranium-235 3.54 ug/L Uranium-238 255 ug/L Uranium-234 559 pci/L Uranium-235 46.2 pci/L X
Uranium-238 329 pci/L Uranium-234 741 pci/L J
Uranium-235 39.7 pci/L J
Uranium-238 429 pci/L J
Uranium-233/234 436 pci/L Uranium-235/236 26.8 pci/L Uranium-238 228 pci/L Uranium-233/234 353 pci/L Uranium-235/236 17.7 pci/L Uranium-238 197 pci/L Uranium-235 4.34 ug/L Uranium-238 340 ug/L Uranium-235 4.74 ug/L Uranium-238 378 ug/L Uranium-235 4.81 ug/L Uranium-238 387 ug/L Uranium-235 3.76 ug/L Uranium-238 305 ug/L Uranium-235 2.94 ug/L Uranium-238 231 ug/L Uranium-235 5.83 ug/L Uranium-238 429 ug/L Uranium-235 2.99 ug/L Uranium-238 229 ug/L 02W39 02W29 / TR-10 (continued) 232 435 234 309 392 383 344 2022-01-19 2021-10-14 2021-07-15 2018-02-07 2017-11-08 568 691 1,210 934 259 181 259 225 267 287 345 2017-08-03 2017-04-25 2017-02-08 2015-03-25 2013-05-28 2004-09-08 2018-08-24 2018-05-08 2023-07-21 2022-10-20 2022-07-08 2022-04-20 2002-08-26 Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Matt Crawford Date: 9/4/2024 Revised 8/29/2024 Page 5 of 18
Table 1a - Uranium Data Southeastern Portion of Burial Area #1 02W Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-235 1.75 ug/L Uranium-238 136 ug/L Uranium-235 1.81 ug/L Uranium-238 134 ug/L Uranium-235 2.90 ug/L Uranium-238 220 ug/L Uranium-235 2.63 ug/L Uranium-238 198 ug/L Uranium-235 2.81 ug/L Uranium-238 211 ug/L Uranium-235 2.35 ug/L Uranium-238 176 ug/L Uranium-235 2.21 ug/L Uranium-238 170 ug/L Uranium-235 2.14 ug/L Uranium-238 157 ug/L Uranium-235 2.06 ug/L Uranium-238 158 ug/L Uranium-235 2.25 ug/L Uranium-238 170 ug/L Uranium-235 2.24 ug/L Uranium-238 174 ug/L Uranium-235 4.00 ug/L Uranium-238 294 ug/L Uranium-235 4.21 ug/L Uranium-238 297 ug/L Uranium-235 5.07 ug/L Uranium-238 365 ug/L Uranium-235 5.25 ug/L Uranium-238 373 ug/L Uranium-235 1.91 ug/L Uranium-238 141 ug/L Uranium-235 1.90 ug/L Uranium-238 144 ug/L Uranium-235 2.17 ug/L Uranium-238 174 ug/L Uranium-235 2.16 ug/L Uranium-238 172 ug/L 02W39 (continued) 160 159 378 370 301 298 176 172 174 176 146 143 2021-01-22 2020-10-19 214 201 223 136 138 172 178 2021-04-15 2021-10-14 2021-07-15 2018-11-07 2018-09-17 2020-07-16 2022-01-19 2020-04-16 Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Matt Crawford Date: 9/4/2024 Revised 8/29/2024 Page 6 of 18
Table 1a - Uranium Data Southeastern Portion of Burial Area #1 02W Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-235 2.13 ug/L Uranium-238 164 ug/L Uranium-235 2.10 ug/L Uranium-238 159 ug/L Uranium-235 2.05 ug/L Uranium-238 163 ug/L Uranium-235 2.01 ug/L Uranium-238 155 ug/L Uranium-235 1.47 ug/L Uranium-238 111 ug/L Uranium-235 3.56 ug/L 260 Uranium-238 256 ug/L Uranium-234 825 pci/L Uranium-235 51.60 pci/L X
Uranium-238 456 pci/L Uranium-234 917 pci/L Uranium-235 77.0 pci/L Uranium-238 716 pci/L Uranium-234 1240 pci/L Uranium-235 98.1 pci/L Uranium-238 583 pci/L Uranium-233/234 962 pci/L Uranium-235/236 51.9 pci/L Uranium-238 577 pci/L Uranium-233/234 556 pci/L Uranium-235/236 37.3 pci/L Uranium-238 309 pci/L Uranium-235 10.6 ug/L Uranium-238 831 ug/L Uranium-235 12.4 ug/L Uranium-238 1000 ug/L Uranium-235 9.06 ug/L Uranium-238 743 ug/L Uranium-235 6.44 ug/L Uranium-238 480 ug/L Uranium-235 2.35 ug/L Uranium-238 158 ug/L Uranium-235 2.29 ug/L Uranium-238 152 ug/L 02W39 (continued) 02W40 1,591 1,921 1,710 154 160 486 752 1,012 842 902 157 165 1,333 161 166 112 2002-08-26 2023-07-21 2022-10-20 2022-07-08 2022-04-20 2018-05-08 2018-02-07 2017-11-08 2017-08-03 2017-04-25 2017-02-08 2015-03-25 2013-05-21 2004-09-08 Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Matt Crawford Date: 9/4/2024 Revised 8/29/2024 Page 7 of 18
Table 1a - Uranium Data Southeastern Portion of Burial Area #1 02W Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-235 3.06 ug/L Uranium-238 197 ug/L Uranium-235 3.61 ug/L Uranium-238 231 ug/L Uranium-235 1.69 ug/L Uranium-238 117 ug/L Uranium-234 593 pci/L Uranium-235 33.0 pci/L Uranium-238 342 pci/L Uranium-234 616 pci/L Uranium-235 58.10 pci/L X
Uranium-238 313 pci/L Uranium-234 601 pci/L J
Uranium-235 32.90 pci/L J
Uranium-238 332 pci/L J
Uranium-233/234 306 pci/L Uranium-235/236 16.4 pci/L Uranium-238 167 pci/L Uranium-233/234 223 pci/L Uranium-235/236 12.3 pci/L Uranium-238 112 pci/L Uranium-235 4.82 ug/L Uranium-238 349 ug/L Uranium-235 1.25 ug/L Uranium-238 87.2 ug/L Uranium-234 139 pci/L Uranium-235 14.8 pci/L Uranium-238 81.3 pci/L Uranium-234 164 pci/L Uranium-235 9.92 pci/L Uranium-238 92.4 pci/L Uranium-234 245 pci/L Uranium-235 15.8 pci/L Uranium-238 115 pci/L Uranium-234 667 pci/L Uranium-235 38.7 pci/L J
Uranium-238 296 pci/L Uranium-234 920 pci/L Uranium-235 51.4 pci/L J
Uranium-238 316 pci/L J
Uranium-233/234 368 pci/L Uranium-235/236 21.0 pci/L Uranium-238 119 pci/L Uranium-233/234 167 pci/L Uranium-235/236 7.42 pci/L Uranium-238 77.8 pci/L 02W40 (continued) 02W41 987 252 508 1,287 1,002 376 266 235 88 347 489 966 119 200 968 235 2008-06-18 2007-08-15 4/25/2017 2018-11-07 2015-03-25 2013-05-21 02W47 354 2004-08-25 2002-08-26 7/31/2024 2015-03-25 2013-05-21 2004-09-08 2002-08-26 2024-07-31 2018-08-24 Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Matt Crawford Date: 9/4/2024 Revised 8/29/2024 Page 8 of 18
Table 1a - Uranium Data Southeastern Portion of Burial Area #1 02W Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-235 3.74 ug/L Uranium-238 162 ug/L Uranium-235 0.627 ug/L Uranium-238 44.2 ug/L Uranium-234 2.80 pci/L Uranium-235 0.189 pci/L Uranium-238 2.03 pci/L Uranium-234 2.12 pci/L Uranium-235 0.121 pci/L Uranium-238 1.26 pci/L Uranium-233/234 2.38 pci/L Uranium-235/236 0.100 pci/L U
Uranium-238 1.01 pci/L Uranium-233/234 1.99 pci/L Uranium-235/236
-0.019 pci/L U
Uranium-238 0.759 pci/L Uranium-234 2.24 pci/L Uranium-235 pci/L U
Uranium-238 1.58 pci/L Uranium-234 1.13 pci/L Uranium-235 0.148 pci/L Uranium-238 0.668 pci/L Uranium-233/234 1.51 pci/L Uranium-235/236 0.073 pci/L U
Uranium-238 0.456 pci/L Uranium-233/234 1.37 pci/L Uranium-235/236 0.056 pci/L U
Uranium-238 0.622 pci/L Notes: pci/L - picocuries per liter ug/L - migrograms per liter U - Undetected J - Estimated Value X - Questionable Value Based on Reasonableness Review 2
2 2
4 3
3 45 4
5 02W50 02W52 2015-03-25 2013-05-21 2004-09-08 2002-08-26 2015-03-25 2013-05-21 2004-09-08 2002-08-26 2024-07-31 166 2017-04-25 02W47 (continued)
Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Matt Crawford Date: 9/4/2024 Revised 8/29/2024 Page 9 of 18
Table 1b - Uranium Data Southeastern Portion of Burial Area #1 1300 - 1400 Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-234 1,240 pci/L Uranium-235 121 pci/L X
Uranium-238 814 pci/L Uranium-234 1,140 pci/L Uranium-235 68.3 pci/L X
Uranium-238 737 pci/L Uranium-234 1,470 pci/L Uranium-235 105 pci/L Uranium-238 934 pci/L Uranium-234 1,350 pci/L Uranium-235 90.8 pci/L Uranium-238 907 pci/L Uranium-234 975 pci/L Uranium-235 90.1 pci/L Uranium-238 663 pci/L Uranium-234 1,820 pci/L Uranium-235 169 pci/L Uranium-238 1,130 pci/L Uranium-234 1,410 pci/L Uranium-235 114 pci/L Uranium-238 996 pci/L Uranium-234 847 pci/L 1,655 Uranium-235 122 pci/L J
Uranium-238 686 pci/L Uranium-234 985 pci/L 1,699 Uranium-235 92.0 pci/L J
Uranium-238 622 pci/L Uranium-234 881 pci/L Uranium-235 109 pci/L Uranium-238 572 pci/L Uranium-234 1,090 pci/L J
Uranium-235 82.1 pci/L Uranium-238 827 pci/L Uranium-234 1,210 pci/L 1,944 Uranium-235 88.8 pci/L J
Uranium-238 645 pci/L Uranium-234 1,260 pci/L 2,052 Uranium-235 99.9 pci/L Uranium-238 692 pci/L J+
2,175 1,999 1,562 2,520 1315R 3,119 1,728 2,348 2,509 1,945 2002-12-11 2002-09-23 2002-08-27 2004-08-25 2007-08-16 2006-05-23 2005-05-31 2004-05-25 2004-03-15 2003-09-29 2003-06-24 Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Date: 9/4/2024 Revised 8/29/2024 Page 10 of 18
Table 1b - Uranium Data Southeastern Portion of Burial Area #1 1300 - 1400 Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-234 739 pci/L J
Uranium-235 41.8 pci/L Uranium-238 388 pci/L J
Uranium-234 414 pci/L J-Uranium-235 33.6 pci/L J-Uranium-238 270 pci/L J-Uranium-233/234 782 pci/L Uranium-235/236 41.4 pci/L Uranium-238 411 pci/L Uranium-233/234 486 pci/L Uranium-235/236 27.8 pci/L Uranium-238 351 pci/L Uranium-235 6.11 ug/L Uranium-238 517 ug/L Uranium-235 8.13 ug/L Uranium-238 715 ug/L Uranium-235 11.4 ug/L Uranium-238 1,000 ug/L Uranium-235 10.3 ug/L Uranium-238 905 ug/L Uranium-235 11 ug/L Uranium-238 937 ug/L Uranium-235 10.5 ug/L Uranium-238 890 ug/L Uranium-235 9.82 ug/L Uranium-238 807 ug/L Uranium-235 7.79 ug/L Uranium-238 625 ug/L Uranium-235 14.5 ug/L Uranium-238 1,060 ug/L Uranium-235 0.51 ug/L J
Uranium-238 43 ug/L Uranium-235 8.29 ug/L Uranium-238 674 ug/L Uranium-235 16.1 ug/L Uranium-238 1,230 ug/L Uranium-235 16.3 ug/L Uranium-238 1,260 ug/L 817 901 723 523 1315R (continued) 1,246 682 44 1,075 633 2021-04-15 2021-01-22 2020-10-12 2020-07-15 2020-04-15 1,169 1,276 948 915 1,011 865 1,234 718 2015-03-25 2013-05-23 2010-10-26 2008-06-25 2017-08-03 2017-02-08 2017-04-25 2018-11-07 2018-08-24 2018-05-08 2018-02-07 2017-11-09 Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Date: 9/4/2024 Revised 8/29/2024 Page 11 of 18
Table 1b - Uranium Data Southeastern Portion of Burial Area #1 1300 - 1400 Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-235 12.1 ug/L Uranium-238 903 ug/L Uranium-235 13.7 ug/L Uranium-238 1,090 ug/L Uranium-235 0.517 ug/L Uranium-238 50.4 ug/L Uranium-235 0.191 ug/L Uranium-238 18.3 ug/L Notes: pci/L - picocuries per liter ug/L - migrograms per liter U - Undetected J - Estimated Value X - Questionable Value Based on Reasonableness Review 1315R (continued) 18 51 1,104 915 1409 2017-12-04 2021-07-15 Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Date: 9/4/2024 Revised 8/29/2024 Page 12 of 18
Table 1c - Uranium Data Southeastern Portion of Burial Area #1 TMW Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-234 1,310 pci/L Uranium-235 137 pci/L Uranium-238 921 pci/L Uranium-234 2,430 pci/L Uranium-235 132 pci/L Uranium-238 1,670 pci/L Uranium-234 379 pci/L Uranium-235 18.7 pci/L Uranium-238 252 pci/L Uranium-234 735 pci/L Uranium-235 43.8 pci/L Uranium-238 470 pci/L Uranium-234 551 pci/L Uranium-235 57.6 pci/L X
Uranium-238 359 pci/L Uranium-234 705 pci/L Uranium-235 75.6 pci/L J
Uranium-238 456 pci/L Uranium-234 874 pci/L Uranium-235 37.8 pci/L J
Uranium-238 582 pci/L Uranium-233/234 436 pci/L Uranium-235/236 25.7 pci/L Uranium-238 271 pci/L Uranium-233/234 118 pci/L Uranium-235/236 6.63 pci/L Uranium-238 68.8 pci/L Uranium-235 4.70 ug/L Uranium-238 388 ug/L Uranium-235 9.49 ug/L Uranium-238 790 ug/L Uranium-234 4.10 pci/L Uranium-235 0.200 pci/L Uranium-238 2.80 pci/L Uranium-234 1.82 pci/L Uranium-235 0.068 pci/L Uranium-238 1.28 pci/L Uranium-234 1.88 pci/L Uranium-235 pci/L U
Uranium-238 0.689 pci/L TMW-01 799 193 733 1,494 1,237 968 1,249 650 4,232 3
3 2,368 2024-07-31 2002-08-26 2001-07-02 2000-12-05 1999-09-22 1999-08-30 7
2002-08-26 2001-07-02 2015-03-25 2013-05-21 2004-09-13 1999-09-22 393 2017-04-25 TMW-02 Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Date: 9/4/2024 Revised 8/29/2024 Page 13 of 18
Table 1c - Uranium Data Southeastern Portion of Burial Area #1 TMW Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-234 1.43 pci/L Uranium-235 0.257 pci/L Uranium-238 0.776 pci/L Uranium-233/234 1.92 pci/L Uranium-235/236
-0.030 pci/L U
Uranium-238 1.15 pci/L Uranium-233/234 1.67 pci/L Uranium-235/236 0.115 pci/L U
Uranium-238 1.42 pci/L Uranium-235 0.040 ug/L J
Uranium-238 5.36 ug/L Uranium-234 209 pci/L Uranium-235 26.0 pci/L Uranium-238 199 pci/L Uranium-234 329 pci/L Uranium-235 23.9 pci/L Uranium-238 361 pci/L Uranium-234 1,220 pci/L Uranium-235 91.3 pci/L Uranium-238 1,240 pci/L Uranium-234 946 pci/L Uranium-235 65.0 pci/L X
Uranium-238 1,020 pci/L Uranium-234 1,370 pci/L Uranium-235 116 pci/L J
Uranium-238 1,580 pci/L Uranium-234 1,340 pci/L J
Uranium-235 107 pci/L J
Uranium-238 1,380 pci/L J
Uranium-234 822 pci/L Uranium-235 54.6 pci/L J
Uranium-238 733 pci/L Uranium-234 956 pci/L J-Uranium-235 73.1 pci/L J-Uranium-238 923 pci/L J-Uranium-234 228 pci/L J-Uranium-235 17.6 pci/L J-Uranium-238 186 pci/L J-Uranium-233/234 321 pci/L J-Uranium-235/236 16.1 pci/L J-Uranium-238 195 pci/L J-5 3
3 2
532 432 1,952 1,610 2017-04-25 2015-03-25 2013-05-21 2004-09-13 2,827 3,066 2,031 2,551 714 434 2007-08-15 2004-12-14 2004-08-25 2002-08-26 2011-08-17 2010-10-18 2009-05-28 2001-07-02 2000-12-05 1999-09-22 TMW-02 (continued)
TMW-08 Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Date: 9/4/2024 Revised 8/29/2024 Page 14 of 18
Table 1c - Uranium Data Southeastern Portion of Burial Area #1 TMW Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-234 282 pci/L Uranium-235 17.1 pci/L Uranium-238 247 pci/L Uranium-233/234 1,100 pci/L Uranium-235/236 68.9 pci/L Uranium-238 922 pci/L Uranium-233/234 353 pci/L Uranium-235/236 26.5 pci/L Uranium-238 305 pci/L Uranium-233/234 293 pci/L Uranium-235/236 16.5 pci/L Uranium-238 216 pci/L Uranium-233/234 928 pci/L Uranium-235/236 68.5 pci/L Uranium-238 844 pci/L Uranium-233/234 736 pci/L Uranium-235/236 73.9 pci/L Uranium-238 689 pci/L Uranium-235 19.9 ug/L Uranium-238 2,330 ug/L Uranium-233/234 161 pci/L Uranium-235/236 11.2 pci/L Uranium-238 107 pci/L Uranium-235 3.76 ug/L Uranium-238 331 ug/L Uranium-233/234 114 pci/L Uranium-235/236 8.41 pci/L Uranium-238 77.5 pci/L Uranium-235 2.23 ug/L Uranium-238 183 ug/L Uranium-233/234 114 pci/L Uranium-235/236 7.15 pci/L Uranium-238 75.7 pci/L Uranium-235 2.60 ug/L Uranium-238 247 ug/L Uranium-233/234 206 pci/L Uranium-235/236 11.0 pci/L Uranium-238 166 pci/L Uranium-235 3.98 ug/L Uranium-238 405 ug/L 1,841 526 685 2,091 546 2014-05-28 2017-05-02 2016-05-10 1,499 250 197 185 200 2021-07-07 2015-03-25 2020-07-22 2019-08-28 2018-06-13 TMW-08 (continued) 2013-05-14 2012-08-01 409 383 335 279 2,350 Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Date: 9/4/2024 Revised 8/29/2024 Page 15 of 18
Table 1c - Uranium Data Southeastern Portion of Burial Area #1 TMW Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-233/234 149 pci/L Uranium-235/236 9.51 pci/L Uranium-238 101 pci/L Uranium-235 2.23 ug/L Uranium-238 189 ug/L Uranium-233/234 52.2 pci/L Uranium-235/236 3.67 pci/L Uranium-238 36.0 pci/L Uranium-235 1.20 ug/L Uranium-238 95.1 ug/L Uranium-235 1.52 ug/L Uranium-238 127 ug/L Uranium-234 4.65 pci/L Uranium-235 0.278 pci/L Uranium-238 3.95 pci/L Uranium-234 4.84 pci/L Uranium-235 0.309 pci/L Uranium-238 4.09 pci/L Uranium-234 6.35 pci/L Uranium-235 0.385 pci/L Uranium-238 4.77 pci/L Uranium-233/234 1.07 pci/L Uranium-235/236 0.003 pci/L U
Uranium-238 0.963 pci/L Uranium-234 161 pci/L Uranium-235 7.07 pci/L Uranium-238 89.2 pci/L Uranium-234 184 pci/L Uranium-235 10.4 pci/L Uranium-238 104 pci/L Uranium-234 157 pci/L Uranium-235 8.19 pci/L Uranium-238 88.8 pci/L Uranium-234 215 pci/L Uranium-235 11.3 pci/L Uranium-238 124 pci/L Uranium-234 108 pci/L Uranium-235 7.27 pci/L J
Uranium-238 63.9 pci/L TMW-25 2024-04-17 TMW-20 2013-05-29 2002-08-26 2001-06-29 2000-07-05 298 257 2004-08-25 2002-08-26 2001-06-29 2000-12-05 2000-07-05 179 350 254 2
12 9
TMW-08 (continued) 129 2022-07-14 2023-07-14 9
96 92 191 260 Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Date: 9/4/2024 Revised 8/29/2024 Page 16 of 18
Table 1c - Uranium Data Southeastern Portion of Burial Area #1 TMW Series Monitor Wells Location Date Analyte Result Unit Qual Total U Uranium-233/234 58.4 pci/L Uranium-235/236 3.31 pci/L Uranium-238 36.2 pci/L Uranium-233/234 55.9 pci/L Uranium-235/236 2.83 pci/L Uranium-238 33.4 pci/L Uranium-235 1.25 ug/L Uranium-238 106 ug/L Uranium-235 0.225 ug/L Uranium-238 18.6 ug/L Notes: pci/L - picocuries per liter ug/L - migrograms per liter U - Undetected J - Estimated Value X - Questionable Value Based on Reasonableness Review TMW-25 (Continued) 19 2024-07-31 2015-03-25 2013-05-21 92 98 2017-04-25 107 Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Date: 9/4/2024 Revised 8/29/2024 Page 17 of 18
Table 1d - Uranium Data Southeastern Portion of Burial Area #1 Extraction Trench Monitor Well TR-07 Location Date Analyte Result Unit Qual Total U Uranium-235 0.264 ug/L Uranium-238 22.0 ug/L Notes: pci/L - picocuries per liter ug/L - migrograms per liter U - Undetected J - Estimated Value X - Questionable Value Based on Reasonableness Review TR-07 2018-08-24 22 Prepared by: Jeff Lux Date: 8/29/2024 Reviewed by : Date:
Revised 8/29/2024 Page 18 of 18
ATTACHMENT 2 - FIGURE - SOUTHEASTERN AREA OF BA1 - REV 2