ML17163A341
| ML17163A341 | |
| Person / Time | |
|---|---|
| Site: | 07000925 |
| Issue date: | 05/19/2017 |
| From: | Lux J Environmental Properties Management |
| To: | Davis P, Kenneth Kalman Office of Nuclear Material Safety and Safeguards, State of OK, Dept of Environmental Quality (DEQ) |
| Shared Package | |
| ML17165A309 | List: |
| References | |
| Download: ML17163A341 (1) | |
Text
May 19, 2017 Mr. Ken Kalman U.S. Nuclear Regulatory Commission 11555 Rockville Pike Rockville, MD 20852-2738 Mr. Paul D.avis Oklahoma Department of Environmental Quality 707 North Robinson Oklahoma City, OK 73101 Re: Docket No.70-925; License No. SNM-928 Report on the Vertical Distribution of Uranium in Alluvial Material
Dear Sirs:
environmental prupnrliPs rnd!li:'!Gt~m=;n1, U.C Groundwater remediation plans include the installation of groundwater extraction wells in the alluvial material in the Cimarron River floodplain. Facility Decommissioning Plan (D-Plan),
submitted in December 2015 stated that groundwater extraction wells will be screened across the saturated thickness of the aquifer.
NRC recommended an evaluation of vertical distribution of uranium in alluvial material. If uranium in concentrated in discrete zones, extraction well screens spanning only those zones would remove contaminant mass more efficiently, potentially increasing the rate of groundwater remediation.
In December 2016, groundwater samples were collected from discrete depth intervals at ten locations in the alluvial aquifer. A direct push rig with a Hydraulic Profiling Tool (HPT) yielded a hydraulic conductivity profile at each location. Evaluation of lab data and the HPT profiles indicates that uranium is not evenly distributed throughout the saturated thickness of the aquifer.
The enclosed report, "Vertical Distribution of Uranium in Groundwater" describes the field work performed, presents the data obtained, and describes the impact of the evaluation on the design of groundwater extraction wells. If you have questions or comments regarding this report, please contact me at jlux(ci),envpm.com or 405-642-5152. Thank you.
Sincerely, y~
Jeff Lux, P.E.
Project Manager Enclosure cc: Mr. Robert Evans, NRC Region IV 9400 Word Porkw{ly
- Konsos City, MO 64114 Tel: 40f-o42-flf2
- jlux@envpm.com