DRC-2025-000478

299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111
[phone] ▪ Fax: [phone] ▪ www.energysolutions.com
February 10, 2025 CD-2025-024
Mr. Doug Hansen, Director
Division of Waste Management and Radiation Control
P.O. Box 144880
Salt Lake City, UT 84114-4880
Re: Groundwater Quality Discharge Permit Number UGW450005 (GWQDP):
Well P3-95 SWC – Fourth Quarter 2024 Status Report
Dear Mr. Hansen:
In accordance with the third revised Corrective Acton Plan (CAP) submitted on August
10, 2016 (CD16-0168), EnergySolutions updates the status of groundwater sampling
results from the fourth quarter 2024 and outlines planned corrective activities for well
P3-95 SWC.
Table 1 provides data on isotopic and total uranium concentrations in groundwater
samples from well P3-95 SWC collected from 2016 through fourth quarter of 2024. Total
uranium or isotopic uranium concentrations exceeding Groundwater Protection Levels
(GWPLs) were not observed during the fourth quarter 2024 in any sample.
On March 15, 2024 (via DRC-2024-004377), the Director of the Division of Waste
Management and Radiation Control conditionally approved EnergySolutions’ plan to
return well P3-95 SWC to compliance (CD-2023-204; October 9, 2023). The plan
includes: 1) conducting a visual tracer dye test, 2) performing groundwater extraction,
and 3) continuing infiltration control near the well. The goal is to locate potential
shallow subsurface material that may be the source of uranium contamination. Details of
these actions are outlined in submittal CD-2023-204. The Director established April 25,
2025, as the latest date for starting the tracer dye test (DRC-2024-006236; August 23,
2024). On September 11, 2024 EnergySolutions acknowledged the Director’s letter (CD-
2024-189) and will submit a plan and schedule for the test to the Director at least 30 days
prior to the initiation of the test. The schedule for the test is dependent on the timing of
future precipitation events at the Clive Facility.
On September 22, 2023, the Director approved an extension of the temporary variance to
storm water management prioritization in GWQDP Appendix J, Part 4.21 until
September 22, 2026 (DRC-2023-071888). This variance elevates the priority of storm
water collection from the north-south ditch along the haul road near well P3-95 SWC.
Monthly sampling of groundwater from well P3-95 SWC will continue in the first quarter
2025.
Mr. Doug Hansen
February 10, 2025
CD-2025-024
Page 2 of 6
Please contact me at 801-649-2060 with any questions regarding this submittal.
Sincerely,
Mathew R Schon
Manager, Groundwater and Environmental Program
I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance
with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry
of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information
submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and imprisonment for knowing violations.
Total Uranium
(mg/L)
GWPL = 0.180
Y/N Y/N Result
1/25/2016 No No 54.8 +12.0 0.703 +1.4 181.0 +23.0 0.551
1/25/2016 dup No No 72.2 +14.0 1.90 +0.16 192.0 +1.3 0.547
2/11/2016 Yes No 13.9 +3.1 < 0.177 +0.36 8.83 +2.5 0.0241
2/11/2016 dup Yes No 12.5 +3.2 < 0.387 +0.57 9.96 +2.9 0.0191
3/29/2016 Yes No 14.0 +1.5 0.443 +0.27 10.6 +1.3 0.0282
3/29/2016 dup Yes No 13.3 +1.4 0.260 +0.20 7.81 +1.1 0.0595
4/28/2016 No No 138.0 +9.2 5.95 +1.9 342.0 +15.0 1.060
4/28/2016 dup No No 130.0 +9.1 9.19 +2.4 338.0 +15.0 1.580
5/24/2016 No No 85.1 +2.2 4.24 +0.50 200.0 +3.4 0.603
6/23/2016 No No 56.1 +2.8 2.87 +0.63 130.0 +4.2 0.400 J
6/23/2016 dup No No 60.9 +3.0 3.26 +0.70 137.0 +4.5 0.424 J
7/14/2016 No No 49.6 +2.6 3.24 +0.66 101.0 +3.7 0.274
7/14/2016 dup No No 48.4 +2.6 2.11 +0.55 104.0 +3.8 0.300
8/11/2016 Yes No 13.7 +1.6 0.281 +0.23 11.4 +1.5 0.0326
8/11/2016 dup Yes No 11.7 +1.5 0.456 +0.31 10.3 +1.5 0.0326
9/22/2016 Yes No 12.6 +1.4 0.347 +0.23 9.77 +1.2 0.0256
9/22/2016 dup Yes No 12.1 +1.4 0.195 +0.18 8.49 +1.2 0.0251
10/20/2016 Yes No 11.6 +1.7 < 0.243 +0.17 6.23 +1.2 0.0242
10/29/2016 dup Yes No 11.8 +1.5 < 0.190 +0.19 6.88 +1.1 0.0246
11/10/2016 Yes No 12.5 +1.4 0.184 +0.16 7.92 +1.1 0.0224
11/10/2016 dup Yes No 12.1 +1.4 0.264 +0.20 7.60 +1.1 0.0220
12/8/2016 Yes No 13.1 +1.4 0.588 +0.30 6.99 +1.0 0.0268
12/8/2016 dup Yes No 13.6 +1.8 0.284 +0.25 7.48 +1.3 0.0241
1/12/2017 Yes Yes 27.1 +1.9 1.24 +0.40 48.3 +2.5 0.130
1/12/2017 dup Yes Yes 33.6 +2.2 1.55 +0.48 64.0 +3.1 0.163
2/16/2017 Yes Yes 24.3 +1.9 0.636 +0.31 40.1 +2.5 0.117
2/16/2017 dup Yes Yes 24.7 +1.9 0.798 +0.35 42.8 +2.6 0.117
3/9/2017 Yes Yes 13.0 +1.5 0.338 +0.24 8.35 +1.2 0.0223
3/9/2017 dup Yes Yes 12.9 +1.5 0.266 +0.22 8.14 +1.2 0.0199
4/27/2017 No Yes 58.6 +3.1 2.04 +0.57 125 +4.5 0.344 J
4/27/2017 dup No Yes 46.1 +2.5 2.60 +0.59 109 +3.8 0.300 J
5/23/2017 No Yes 20.6 +1.7 0.786 +0.34 28.3 +2.0 0.0816
6/27/2017 No Yes 21.5 +2.1 0.558 +0.34 31.3 +2.5 0.0855
6/27/2017 dup No Yes 18.2 +1.9 0.556 +0.34 28.9 +2.4 0.0801
7/27/2017 No Yes 19.1 +1.6 0.624 +0.29 26.1 +1.9 0.0680 J
7/27/2017 dup No Yes 18.8 +1.5 0.256 +0.18 22.4 +1.7 0.0649 J
8/10/2017 No Yes 15.7 +1.5 0.313 +0.21 17.0 +1.5 0.0428
8/10/2017 dup No Yes 15.3 +1.5 0.349 +0.22 15.5 +1.5 0.0390
9/26/2017 No Yes 17.7 +1.6 0.356 +0.23 20.9 +1.7 0.0703
9/26/2017 dup No Yes 18.8 +1.7 0.527 +0.28 21.4 +1.8 0.0704
10/18/2017 No Yes 17.9 +1.9 0.408 +0.29 19.3 +2.0 0.0554
10/18/2017 dup No Yes 18.1 +1.9 0.577 +0.33 19.5 +1.9 0.0531
11/9/2017 No Yes 12.7 +1.5 0.206 +0.19 14.7 +1.6 0.0476
11/9/2017 dup No Yes 16.4 +1.7 0.211 +0.19 18.5 +1.8 0.0444
12/5/2017 No Yes 15.1 +1.7 0.332 +0.25 15.1 +1.7 0.0434
12/5/2017 dup No Yes 15.1 +1.7 0.329 +0.25 16.0 +1.7 0.0416
1/11/2018 No Yes 14.9 +1.4 0.390 +0.23 14.8 +1.4 0.0396
1/11/2018 dup No Yes 14.8 +1.4 0.312 +0.20 15.8 +1.4 0.0391
2/13/2018 No Yes 16.4 +1.6 0.470 +0.28 16.8 +1.6 0.0372
2/13/2018 dup No Yes 16.9 +1.5 0.585 +0.29 15.1 +1.4 0.0386
3/8/2018 No Yes 14.7 +1.4 0.267 +0.19 14.7 +1.4 0.0419
3/8/2018 dup No Yes 15.8 +1.4 0.435 +0.24 14.4 +1.3 0.0422
4/3/2018 No Yes 18.7 +1.7 0.916 +0.41 25.3 +1.9 0.077
4/3/2018 dup No Yes 18.3 +1.6 0.814 +0.37 25.8 +1.8 0.086
5/21/2018 No Yes 14.6 +1.6 0.563 +0.35 14.3 +1.6 0.047
Table 1
2016 to Q4 2024 Well P3-95 SWC Groundwater Uranium Data
Uranium-234
(pCi/L)
Uranium-238
(pCi/L)
GWPL = 48 GWPL = 79
Stormwater
Management
Temporary
Variance
Groundwater
Extraction in
Progress
Result Result
Uranium-235
(pCi/L)
GWPL = 27
Result
Sample Date
CD-2025-024 Page 3 of 6 February 10, 2025
Total Uranium
(mg/L)
GWPL = 0.180
Y/N Y/N Result
Table 1
2016 to Q4 2024 Well P3-95 SWC Groundwater Uranium Data
Uranium-234
(pCi/L)
Uranium-238
(pCi/L)
GWPL = 48 GWPL = 79
Stormwater
Management
Temporary
Variance
Groundwater
Extraction in
Progress
Result Result
Uranium-235
(pCi/L)
GWPL = 27
Result
Sample Date
6/22/2018 No Yes 15.1 +1.6 0.357 +0.27 15.6 +1.6 0.046
6/22/2018 dup No Yes 15.0 +1.6 0.409 +0.31 16.6 +1.7 0.047
7/19/2018 No Yes 13.9 +1.7 0.362 +0.30 11.5 +1.5 0.060
7/19/2018 dup No Yes 15.3 +1.7 0.724 +0.40 14.5 +1.6 0.046
8/9/2018 No Yes 13.1 +1.8 0.693 +0.46 11.6 +1.7 0.068
8/9/2018 dup No Yes 15.0 +1.8 0.488 +0.37 13.0 +1.7 0.059
9/13/2018 No Yes 16.3 +1.7 0.377 +0.29 12.8 +1.5 0.045
9/13/2018 dup No Yes 14.3 +1.5 < 0.318 +0.26 12.6 +1.4 0.044
10/22/2018 No Yes 13.8 +1.5 0.426 +0.30 11.2 +1.4 0.040
10/22/2018 dup No Yes 14.7 +1.7 0.439 +0.35 12.8 +1.6 0.041
11/13/2018 No Yes 15.7 +1.7 0.415 +0.33 13.7 +1.6 0.038
11/13/2018 dup No Yes 14.6 +1.6 0.484 +0.32 12.2 +1.5 0.037
12/13/2018 No Yes 15.1 +1.8 0.452 +0.34 13.3 +1.7 0.042
12/13/2018 dup No Yes 14.3 +1.5 0.390 +0.29 13.8 +1.5 0.043
1/10/2019 No Yes 33.5 +2.7 2.51 +0.81 65.7 +3.7 0.240
1/10/2019 dup No Yes 32.8 +2.7 2.15 +0.80 75.5 +4.2 0.250
2/21/2019 No Yes 66.7 +4.6 5.67 +1.52 161 +7.2 0.540
2/21/2019 dup No Yes 65.8 +4.6 4.74 +1.38 166 +7.3 0.610
3/21/2019 No Yes 88.0 +6.4 6.29 +1.92 221 +10.1 0.700
3/21/2019 dup No Yes 81.9 +6.1 5.59 +1.79 209 +9.8 0.630
4/23/2019 No Yes 48.6 +2.8 3.85 +0.881 112 +4.2 0.310
5/30/2019 No Yes 49.1 +4.5 3.36 +1.34 115 +6.9 0.440
5/30/2019 dup No Yes 54.1 +4.3 2.91 +1.14 121 +6.4 0.390
6/20/2019 Yes Yes 19.2 +1.7 0.617 +0.369 25.2 +1.9 0.099
6/20/2019 dup Yes Yes 23.3 +2.2 0.758 +0.451 36.7 +2.7 0.130
7/18/2019 Yes Yes 13.0 +1.02 0.483 +0.222 10.3 +0.908 0.039
7/18/2019 dup Yes Yes 13.4 +1.06 0.367 +0.201 10.5 +0.931 0.039
8/8/2019 Yes Yes 12.6 +1.03 0.477 +0.229 8.79 +0.859 0.032
8/8/2019 dup Yes Yes 12.4 +0.996 0.311 +0.180 9.15 +0.857 0.031
9/12/2019 Yes Yes 12.6 +1.33 0.439 +0.278 7.01 +0.996 0.020
9/12/2019 dup Yes Yes 13.8 +1.46 0.275 +0.236 8.20 +1.120 0.027
10/10/2019 Yes Yes 11.8 +1.54 0.385 +0.330 7.78 +1.24 0.021
10/10/2019 dup Yes Yes 12.5 +1.49 0.520 +0.348 7.29 +1.14 0.024
11/14/2019 Yes Yes 12.0 +1.46 < 0.308 +0.249 7.22 +1.13 0.020
11/14/2019 dup Yes Yes 12.9 +1.54 < 0.379 +0.305 6.80 +1.11 0.020
12/19/2019 Yes Yes 12.7 +1.52 0.352 +0.302 7.45 +1.170 0.020
12/19/2019 dup Yes Yes 11.1 +1.44 < 0.322 +0.203 6.99 +1.140 0.020
1/16/2020 Yes Yes 11.9 +1.37 0.350 +0.275 6.81 +1.04 0.025 B
1/16/2020 dup Yes Yes 11.1 +1.25 0.593 +0.343 6.35 +0.947 0.030 B
2/20/2020 Yes Yes 11.2 +1.28 < 0.455 +0.327 6.81 +1.00 0.030 B
2/20/2020 dup Yes Yes 12.4 +1.39 0.387 +0.283 6.33 +0.992 0.031 B
3/12/2020 Yes Yes 13.6 +1.70 < 0.319 +0.364 6.95 +1.22 0.018 B
3/12/2020 dup Yes Yes 13.1 +1.60 0.420 +0.318 7.06 +1.17 0.018 B
4/9/2020 Yes Yes 11.4 +0.707 0.514 +0.171 6.45 +0.533 0.020
4/9/2020 dup Yes Yes 12.3 +0.765 0.291 +0.149 6.68 +0.562 0.020
5/12/2020 Yes Yes 11.4 +1.330 0.440 +0.298 6.70 +1.03 0.021
6/15/2020 Yes Yes 11.0 +0.926 0.215 +0.156 6.83 +0.725 0.021
6/15/2020 dup Yes Yes 11.0 +0.922 0.382 +0.191 5.75 +0.666 0.018
7/7/2020 Yes Yes 12.4 +0.689 0.254 +0.157 6.57 +0.508 0.020
7/7/2020 dup Yes Yes 11.9 +0.944 0.396 +0.202 6.13 +0.680 0.019
8/20/2020 Yes Yes 13.4 +1.65 0.698 J +0.444 6.37 +1.14 0.020
8/20/2020 dup Yes Yes 11.2 +1.36 < 0.285 +0.252 6.28 +1.02 0.019
9/15/2020 Yes Yes 10.5 +1.28 < 0.600 U +0.308 5.58 +0.942 0.017
9/15/2020 dup Yes Yes 11.5 +1.39 < 0.600 U +0.315 5.40 +0.952 0.017
10/15/2020 Yes Yes 12.8 +1.44 < 0.272 +0.269 6.11 +0.993 0.019
CD-2025-024 Page 4 of 6 February 10, 2025
Total Uranium
(mg/L)
GWPL = 0.180
Y/N Y/N Result
Table 1
2016 to Q4 2024 Well P3-95 SWC Groundwater Uranium Data
Uranium-234
(pCi/L)
Uranium-238
(pCi/L)
GWPL = 48 GWPL = 79
Stormwater
Management
Temporary
Variance
Groundwater
Extraction in
Progress
Result Result
Uranium-235
(pCi/L)
GWPL = 27
Result
Sample Date
10/15/2020 dup Yes Yes 12.2 +1.46 < 0.212 +0.405 5.90 +1.03 0.018
11/10/2020 Yes Yes 13.3 +1.41 0.433 +0.307 5.89 +0.944 0.018
11/10/2020 dup Yes Yes 11.1 +1.28 < 0.205 +0.206 6.07 +0.944 0.018
12/15/2020 Yes Yes 10.2 +1.40 < 0.284 +0.269 5.26 +1.01 0.016
12/15/2020 dup Yes Yes 12.5 +1.79 0.555 +0.420 7.10 +1.35 0.022
1/26/2021 Yes Yes 11.8 +1.41 0.314 +0.257 5.31 +0.947 0.016
1/26/2021 dup Yes Yes 11.3 +1.33 0.810 +0.400 5.73 +0.960 0.018
2/12/2021 Yes Yes 10.3 +1.25 0.270 +0.231 5.97 +0.952 0.018
2/12/2021 dup Yes Yes 11.8 +1.40 < 0.288 +0.209 5.63 +0.964 0.017
3/9/2021 Yes Yes 10.4 +1.27 < 0.235 +0.218 6.02 +0.969 0.018
3/9/2021 dup Yes Yes 11.6 +1.78 0.332 +0.332 5.95 +1.26 0.018
4/27/2021 Yes Yes 10.1 +0.749 0.286 +0.148 5.33 +0.544 0.016
5/20/2021 Yes Yes 12.7 +1.16 < 0.214 +0.164 7.17 +0.870 0.022
5/20/2021 dup Yes Yes 11.5 +1.44 < 0.399 +0.230 7.10 +1.13 0.022
6/8/2021 Yes Yes 11.6 +1.05 0.284 +0.189 6.13 +0.766 0.019
6/8/2021 dup Yes Yes 11.5 +1.07 0.384 +0.229 5.83 +0.755 0.018
7/20/2021 No Yes 12.7 +1.07 0.298 +0.196 6.49 +0.760 0.020
7/20/2021 dup No Yes 12.0 +1.10 0.550 +0.274 6.46 +0.802 0.020
8/26/2021 No Yes 11.3 +1.01 0.351 +0.203 6.97 +0.791 0.021
8/26/2021 dup No Yes 13.4 +1.17 0.276 +0.204 7.54 +0.879 0.023
9/21/2021 Yes Yes 12.4 +1.09 0.178 +0.145 5.28 +0.710 0.016
9/21/2021 dup Yes Yes 11.9 +1.08 0.694 +0.296 6.04 +0.774 0.019
10/21/2021 Yes Yes 11.8 +1.35 0.335 +0.254 6.23 +0.982 0.019
10/21/2021 dup Yes Yes 10.6 +1.28 0.334 +0.274 5.38 +0.909 0.016
11/23/2021 Yes Yes 12.4 +1.42 0.340 +0.268 5.82 +0.969 0.018
11/23/2021 dup Yes Yes 12.2 +1.36 < 0.047 +0.140 5.81 +0.937 0.018
12/16/2021 Yes Yes 11.6 +0.921 0.340 +0.176 6.63 +0.695 0.020
12/16/2021 dup Yes Yes 13.1 +1.00 0.324 +0.179 6.84 +0.727 0.021
1/18/2022 Yes Yes 11.7 +0.920 0.348 +0.181 5.60 +0.637 0.017
1/18/2022 dup Yes Yes 12.2 +0.907 0.387 +0.183 5.86 +0.630 0.018
2/10/2022 Yes Yes 11.3 +0.831 0.199 +0.127 6.55 +0.632 0.020
2/10/2022 dup Yes Yes 12.3 +0.888 0.362 +0.174 6.57 +0.648 0.020
3/22/2022 Yes Yes 11.6 +0.921 0.340 +0.176 6.63 +0.695 0.019
3/22/2022 dup Yes Yes 13.1 +1.00 0.324 +0.179 6.84 +0.727 0.020
4/7/2022 Yes Yes 12.1 +0.992 0.422 +0.217 6.23 +0.713 0.019
5/17/2022 No Yes 12.6 +1.31 < 0.396 +0.277 6.67 +0.963 0.020
5/17/2022 dup No Yes 13.9 +1.38 0.442 +0.281 7.36 +1.00 0.023
6/27/2022 No Yes 13.5 +1.35 0.471 +0.293 7.69 +1.02 0.024
6/27/2022 dup No Yes 13.0 +1.32 0.293 +0.240 7.33 +0.993 0.022
7/19/2022 No Yes 12.3 +1.47 0.262 +0.244 7.02 +1.11 0.021
7/19/2022 dup No Yes 11.7 +1.37 0.297 +0.242 6.65 +1.03 0.020
8/9/2022 No Yes 12.6 +1.49 0.261 +0.243 5.43 +0.976 0.017
8/9/2022 dup No Yes 12.5 +1.45 < 0.315 +0.278 5.91 +0.996 0.018
9/22/2022 No Yes 14.9 +1.54 0.529 +0.345 8.25 +1.14 0.025
9/22/2022 dup No Yes 13.4 +1.38 < 0.208 +0.197 6.80 +0.981 0.021
10/6/2022 No Yes 12.5 +1.28 0.343 +0.244 6.21 +0.889 0.019
10/6/2022 dup No Yes 13.4 +1.38 0.932 +0.407 8.27 +1.09 0.026
11/22/2022 No Yes 12.9 +1.30 0.275 +0.216 7.20 +0.971 0.022
11/22/2022 dup No Yes 12.4 +1.33 0.519 +0.307 7.68 +1.04 0.024
12/8/2022 No Yes 10.7 +1.28 0.367 +0.269 6.25 +0.975 0.019
12/8/2022 dup No Yes 11.7 +1.43 0.326 +0.266 6.14 +1.03 0.019
CD-2025-024 Page 5 of 6 February 10, 2025
Total Uranium
(mg/L)
GWPL = 0.180
Y/N Y/N Result
Table 1
2016 to Q4 2024 Well P3-95 SWC Groundwater Uranium Data
Uranium-234
(pCi/L)
Uranium-238
(pCi/L)
GWPL = 48 GWPL = 79
Stormwater
Management
Temporary
Variance
Groundwater
Extraction in
Progress
Result Result
Uranium-235
(pCi/L)
GWPL = 27
Result
Sample Date
1/16/2023 No Yes 24.6 +1.74 1.37 +0.459 46.3 +2.38 0.141
1/16/2023 dup No Yes 21.1 +1.72 1.43 +0.498 33.9 +2.17 0.103
2/16/2023 No Yes 50.7 +3.27 3.88 +1.01 128 +5.20 0.390
2/16/2023 dup No Yes 53.1 +3.46 3.26 +0.958 116 +5.11 0.353
3/7/2023 No Yes 46.3 +2.98 3.80 +0.953 99.0 +4.35 0.302
3/7/2023 dup No Yes 41.5 +2.75 2.58 +0.765 92.3 +4.09 0.281
4/25/2023 No Yes 35.6 +2.59 1.68 +0.630 71.7 +3.67 0.218
5/22/2023 No Yes 31.5 +2.13 1.69 +0.553 64.0 +3.03 0.195
5/22/2023 dup No Yes 33.8 +2.39 1.47 +0.555 60.6 +3.19 0.184
6/20/2023 No Yes 25.6 +1.84 1.19 +0.452 45.0 +2.44 0.137
6/20/2023 dup No Yes 27.3 +2.00 1.50 +0.523 45.8 +2.59 0.140
7/20/2023 No Yes 24.8 +2.09 0.972 +0.465 43.2 +2.76 0.131
7/20/2023 dup No Yes 24.9 +2.19 1.01 +0.491 44.6 +2.92 0.136
8/15/2023 No Yes 23.6 +2.10 0.741 +0.420 39.9 +2.73 0.121
8/15/23 dup No Yes 24.2 +2.29 1.35 +0.602 37.9 +2.86 0.115
9/19/2023 No Yes 22.9 +2.07 < 0.542 +0.495 34.5 +2.53 0.105
9/19/2023 dup No Yes 24.1 +2.12 1.25 +0.545 39.0 +2.69 0.119
10/10/2023 No Yes 23.5 +1.80 0.849 +0.385 30.4 +2.05 0.093
10/10/2023 dup No Yes 21.9 +1.74 0.686 +0.343 30.6 +2.05 0.093
11/16/2023 No Yes 22.7 +1.75 0.740 +0.354 31.0 +2.04 0.094
11/16/23 dup No Yes 21.6 +1.84 0.794 +0.405 28.8 +2.12 0.088
12/18/2023 No Yes 20.0 +1.68 1.03 +0.441 24.9 +1.87 0.076
12/18/2023 dup No Yes 17.0 +1.32 0.559 +0.272 22.7 +1.53 0.069
1/11/2024 No Yes 20.9 +1.72 1.43 +0.504 27.4 +1.96 0.084
1/11/2024 dup No Yes 20.8 +2.28 1.35 +0.658 26.0 +2.55 0.079
2/15/2024 No Yes 82.0 +5.26 7.06 +1.73 205 +19.1 0.625
2/15/24 dup No Yes 71.8 +4.57 5.39 +1.40 169 +6.99 0.515
3/12/2024 No Yes 82.1 +5.22 7.39 +1.75 203 +8.19 0.619
3/12/2024 dup No Yes 70.1 +4.52 6.24 +1.52 163 +6.89 0.497
4/29/2024 No Yes 43.5 +3.03 2.15 +0.750 87.7 +4.29 0.267
4/29/2024 dup No Yes 60.9 +3.56 3.79 +0.991 137 +5.32 0.417
5/13/2024 No Yes 81.4 +4.73 6.63 +1.51 209 +7.57 0.637
5/13/2024 dup No Yes 71.0 +4.08 5.48 +1.27 172 +6.36 0.524
6/27/2024 No Yes 47.1 +2.79 2.75 +0.757 96.2 +3.98 0.293
6/27/2024 dup No Yes 44.2 +4.53 2.07 +0.652 91.7 +8.56 0.279
7/18/2024 No Yes 38.8 +2.00 2.39 +0.557 78.4 +2.83 0.239
7/18/2024 dup No Yes 31.2 +1.72 1.85 +0.468 52.5 +2.23 0.160
8/5/2024 No Yes 33.5 +1.83 2.04 +0.506 65.0 +2.55 0.198
8/5/2024 dup No Yes 33.6 +1.80 2.18 +0.512 65.3 +2.51 0.199
9/16/2024 No Yes 36.7 +1.84 1.53 +0.420 69.2 +2.52 0.210
9/16/24 dup No Yes 34.2 +1.91 1.99 +0.515 63.0 +2.59 0.192
10/8/2024 No Yes 30.1 +1.57 1.99 +0.454 52.9 +2.52 0.161
10/8/24 dup No Yes 28.4 +1.59 1.58 +0.419 48.5 +2.07 0.148
11/19/2024 No Yes 29.4 +2.44 1.04 +0.521 52.7 +3.27 0.160
11/19/2024 dup No Yes 27.2 +2.37 1.27 +0.575 47.4 +3.13 0.144
12/19/2024 No Yes 28.1 +2.23 1.08 +0.491 44.0 +2.78 0.134
12/19/2024 dup No Yes 27.2 +2.42 1.20 +0.566 43.2 +3.05 0.131
mg/L - milligrams per liter
pCi/L - picoCuries per liter
Results in bold exceed the groundwater protection level (GWPL).
B - validation qualifier. Result is greater than minimum detection limit but less than reporting limit.
J - validation qualifier. Result is estimated.
U - validation qualifier. Result is reported as undetected at the contract required detection limit due to method blank contamination.
CD-2025-024 Page 6 of 6 February 10, 2025