ML25098A276
| ML25098A276 | |
| Person / Time | |
|---|---|
| Site: | 07000925 |
| Issue date: | 04/08/2025 |
| From: | Melissa Crawford Cimarron Environmental Response Trust, Environmental Properties Management |
| To: | Linda Gersey, Miller R, James Smith Office of Nuclear Material Safety and Safeguards, Document Control Desk, NRC Region 4, State of OK, Dept of Environmental Quality (DEQ) |
| References | |
| Download: ML25098A276 (1) | |
Text
9400 Ward Parkway
- Kansas City, MO 64114 Tel: 405-642-5152
- jlux@envpm.com April 8, 2025 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 Linda Gersey U.S. Nuclear Regulatory Commission, Region IV 1600 E. Lamar Blvd., Suite 400 Arlington, TX 76011-4511 Re: Docket No. 07000925; License No. SNM-928 Cimarron Environmental Response Trust 2025 - Annual Environmental Monitoring Program Data
Dear Recipients:
Solely as Trustee for the Cimarron Environmental Response Trust (CERT), Environmental Properties Management LLC (EPM) submits herein to the U. S. Nuclear Regulatory Commission (NRC) and the Oklahoma Department of Environmental Quality (DEQ) the analytical results from the 2025 Annual Environmental Monitoring Program. Samples were collected and analyzed in accordance with Section 15 of the CERT Radiation Protection Plan (RPP) and the CERT Quality Assurance Program Plan.
Section 15 of the RPP specifies that groundwater samples are to be collected from 29 monitor wells and surface water samples are to be collected from two locations in the Cimarron River.
Samples were collected from February 4 through February 7, 2025.
With the exception of the surface water samples, the data is tabulated by remediation area as defined in Facility Decommissioning Plan - Rev 3, and within each remediation area, locations are generally arranged in order from upgradient to downgradient locations.
9400 Ward Parkway
- Kansas City, MO 64114 Tel: 405-642-5152
- jlux@envpm.com If you have any questions or desire to discuss the results of the annual environmental sampling program, please call me at (785) 317-4535.
Sincerely, Matt Crawford Trustee Project Manager cc: (electronic copies only)
Stephanie Anderson, NRC Region IV Paul Davis, Keisha Cornelius, Lee Dooley, David Cates, and Jonathan Reid, DEQ NRC Public Document Room vcpsubmittals@deq.ok.gov
- 2025 Annual Environmental Monitoring Data
ATTACHMENT 1 2025 ANNUAL ENVIRONMENTAL MONITORING DATA
Cimarron Environmental Response Trust 2025 Annual Environmental Monitoring Data Area Sample Number Collection Date Parameter Lab Result Uncertainty Units Total Activity/
Concentration Lab or Data Review Qual MDL Uranium-235 0.0655 0.017
µg/L J
0.05 Uranium-238 8.71 0.45
µg/L 8.78 0.335 Fluoride 0.541 0.111 mg/L J
0.33 Nitrogen, Nitrate/Nitrite 0.104 mg/L 0.017 Uranium-235 0.0725 0.0171
µg/L J
0.05 Uranium-238 9.25 0.476
µg/L 9.32 0.335 Fluoride 0.534 0.111 mg/L J
0.33 Nitrogen, Nitrate/Nitrite 0.166 mg/L 0.017 Uranium-235 11.4 0.57
µg/L 0.1 Uranium-238 268 13.4
µg/L 279.40 0.268 Fluoride 12.1 0.407 mg/L 0.165 Nitrogen, Nitrate/Nitrite 0.103 mg/L 0.017 Uranium-235 4.66 0.235
µg/L 0.1 Uranium-238 255 12.8
µg/L 259.66 0.268 Fluoride 4.78 0.161 mg/L 0.066 Nitrogen, Nitrate/Nitrite 4.31 mg/L 0.17 Uranium-235 0.115 0.00665
µg/L 0.01 Uranium-238 5.07 0.255
µg/L 5.19 0.067 Fluoride 0.556 0.0216 mg/L 0.033 Nitrogen, Nitrate/Nitrite 67.7 mg/L 1.7 Uranium-235 0.113 0.00655
µg/L 0.01 Uranium-238 4.99 0.25
µg/L 5.10 0.067 Fluoride 0.547 0.0213 mg/L 0.033 Nitrogen, Nitrate/Nitrite 67.7 mg/L 1.7 Uranium-235 0.822 0.0417
µg/L 0.02 Uranium-238 76 3.8
µg/L 76.82 0.134 Fluoride 0.462 0.0189 mg/L 0.033 Nitrogen, Nitrate/Nitrite 17.8 mg/L 0.85 1352 1351 DUP WU-BA3 2/7/2025 2/6/2025 MWWA-03 2/6/2025 1206-NORTH 1351 2/7/2025 MWWA-09 2/6/2025 Surface Water 2/7/2025 1201 2/7/2025 1202 Page 1 of 5
Cimarron Environmental Response Trust 2025 Annual Environmental Monitoring Data Area Sample Number Collection Date Parameter Lab Result Uncertainty Units Total Activity/
Concentration Lab or Data Review Qual MDL Uranium-235 0.0178 0.00345
µg/L J
0.01 Uranium-238 2.26 0.115
µg/L 2.28 0.067 Fluoride 0.649 0.0243 mg/L 0.033 Nitrogen, Nitrate/Nitrite 104 mg/L 8.5 Uranium-235 2.83 0.142
µg/L 0.05 Uranium-238 149 7.44
µg/L 151.83 0.134 Fluoride 0.477 0.0193 mg/L 0.033 Nitrogen, Nitrate/Nitrite 7.71 mg/L 0.17 Uranium-235 2.04 0.103
µg/L 0.05 Uranium-238 112 5.62
µg/L 114.04 0.134 Fluoride 2.72 0.0913 mg/L 0.033 Nitrogen, Nitrate/Nitrite 88 mg/L 8.5 Uranium-235 1.18 0.0603
µg/L 0.04 Uranium-238 29.3 1.47
µg/L 30.48 0.268 Fluoride 0.923 0.0327 mg/L 0.033 Nitrogen, Nitrate/Nitrite 3.64 mg/L 0.17 Uranium-235 0.876 0.0443
µg/L 0.02 Uranium-238 22 1.1
µg/L 22.88 0.134 Fluoride 0.494 0.0198 mg/L 0.033 Nitrogen, Nitrate/Nitrite 2.79 mg/L 0.085 Uranium-235 3.6 0.183
µg/L 0.1 Uranium-238 122 6.1
µg/L 125.60 0.134 Fluoride 2.74 0.0921 mg/L 0.033 Nitrogen, Nitrate/Nitrite 1.54 mg/L 0.085 Uranium-235 0.769 0.039
µg/L 0.02 Uranium-238 25 1.25
µg/L 25.77 0.134 Fluoride 0.467 0.0191 mg/L 0.033 Nitrogen, Nitrate/Nitrite 0.594 mg/L 0.017 T-62 WU-BA3 T-77 WAA U>DCGL 2/6/2025 T-64 2/6/2025 T-70R 2/6/2025 2/7/2025 1354 2/6/2025 1356 T-76 2/6/2025 2/6/2025 Page 2 of 5
Cimarron Environmental Response Trust 2025 Annual Environmental Monitoring Data Area Sample Number Collection Date Parameter Lab Result Uncertainty Units Total Activity/
Concentration Lab or Data Review Qual MDL Uranium-235 0.517 0.0261
µg/L 0.01 Uranium-238 21 1.05
µg/L 21.52 0.067 Fluoride 0.626 0.0236 mg/L 0.033 Nitrogen, Nitrate/Nitrite 0.0956 mg/L 0.017 Uranium-235 0.254 0.0131
µg/L 0.01 Uranium-238 16.8 0.841
µg/L 17.05 0.067 Fluoride 0.556 0.0215 mg/L 0.033 Nitrogen, Nitrate/Nitrite 1.7 mg/L 0.085 Uranium-235 0.01 0.00337
µg/L U
0.01 Uranium-238 1.13 0.0606
µg/L 1.14 0.067 Uranium-235 1.08 0.0567
µg/L 0.05 Uranium-238 92.7 4.64
µg/L 93.78 0.335 Uranium-235 2.55 0.129
µg/L 0.05 Uranium-238 171 8.53
µg/L 173.55 0.335 Uranium-235 2.17 0.109
µg/L 0.04 Uranium-238 145 7.25
µg/L 147.17 0.268 Uranium-235 0.0277 0.00361
µg/L J
0.01 Uranium-238 2.93 0.148
µg/L 2.96 0.067 Uranium-235 0.238 0.0124
µg/L 0.01 Uranium-238 20.3 1.02
µg/L 20.54 0.067 Uranium-235 24.2 1.22
µg/L 0.5 Uranium-238 1720 86
µg/L 1744.20 1.34 Uranium-235 25.2 1.27
µg/L 0.5 Uranium-238 1700 84.9
µg/L 1725.20 1.34 BA1-A TRANSITION ZONE BA1A SANDSTONE B
1314 WAA-WEST WAA U>DCGL 2/5/2025 02W28 2/5/2025 TMW-09 2/5/2025 TMW-09 DUP 2/5/2025 02W42 2/5/2025 02W27 02W09 2/5/2025 2/5/2025 TMW-08 2/5/2025 2/6/2025 T-82 2/6/2025 T-79 Page 3 of 5
Cimarron Environmental Response Trust 2025 Annual Environmental Monitoring Data Area Sample Number Collection Date Parameter Lab Result Uncertainty Units Total Activity/
Concentration Lab or Data Review Qual MDL Uranium-235 3.78 0.192
µg/L 0.1 Uranium-238 312 15.6
µg/L 315.78 0.268 Uranium-235 1.47 0.0748
µg/L 0.04 Uranium-238 122 6.12
µg/L 123.47 0.268 Uranium-235 1.47 0.0749
µg/L 0.04 Uranium-238 121 6.05
µg/L 122.47 0.268 Uranium-235 0.849 0.043
µg/L 0.02 Uranium-238 66.3 3.32
µg/L 67.15 0.134 2/5/2025 02W32 2/5/2025 02W16 2/5/2025 02W32 DUP BA1-B SOUTH 2/5/2025 TMW-13 Page 4 of 5
Cimarron Environmental Response Trust 2025 Annual Environmental Monitoring Data Area Sample Number Collection Date Parameter Lab Result Uncertainty Units Total Activity/
Concentration Lab or Data Review Qual MDL Uranium-235 0.473 0.0239
µg/L 0.01 Uranium-238 40.5 2.02
µg/L 40.97 0.067 Uranium-235 2.9 0.146
µg/L 0.05 Uranium-238 230 11.5
µg/L 232.90 0.335 Uranium-235 1.31 0.0677
µg/L 0.05 Uranium-238 103 5.14
µg/L 104.31 0.335 Uranium-235 0.443 0.0224
µg/L 0.01 Uranium-238 35.8 1.79
µg/L 36.24 0.067 Uranium-235 0.607 0.0305
µg/L 0.01 Uranium-238 50.3 2.52
µg/L 50.91 0.067 Uranium-235 1.14 0.0594
µg/L 0.05 Uranium-238 88.9 4.45
µg/L 90.04 0.335 Notes:
Highlighted cells indicate results above remediation goal.
Red bold font indicates information not provided in laboratory electronic deliverable.
DEQ = Department of Environmental Quality J = trace value MDL = method detection limit
µg/L = micrograms per Liter mg/L = milligrams per Liter NRC = Nuclear Regulatory Commission Qual = qualifier U = nondetect Nitrate: 22.9 mg/L Fluoride: 4 mg/L Uranium: 30 µg/L Calculated Uranium Concentration: 123 ug/L in WAA U>DCGL, 1206-NORTH, & WU-BA3 Calculated Uranium Concentration: 201 ug/L elsewhere 02W35 2/4/2025 02W08 2/5/2025 NRC Criteria 2/5/2025 DEQ Criteria 02W06 BA1-BNORTH 2/4/2025 02W44 2/4/2025 02W43 2/4/2025 02W17 Page 5 of 5