ML20198R301
| ML20198R301 | |
| Person / Time | |
|---|---|
| Issue date: | 11/06/1997 |
| From: | Joseph Holonich NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Plieness R ENERGY, DEPT. OF |
| References | |
| REF-WM-54 NUDOCS 9711130229 | |
| Download: ML20198R301 (1) | |
Text
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Mr. R:y Plieness November 6, 1997 U.S. Department of Energy
. Grand Junction Office P.O. Box 2567 -
Grand Junction, CO 81502 2567
SUBJECT:
SITE OBSERVATIONAL WORK PLAN FOR THE GRAND JUNCTION, COLORADO, URANIUM MILL TAILINGS REMEDIAL ACTION PROJECT SITE
Dear Mr. Plieness:
The U.S. Nuclear Regulatory Commission staff has reviewed the U.S. Department of Energy's I (DOE) Site Observational Work Plan (SOWP) for the Grand Junction, Colcrado, Urnnium Mill Tailings Remedial Action Project, transmhted by letter dated April 8,1996. The groundwater compliance strategy proposed in the SOWP is no remediation, based on supplemental standards in accordance with 40 CFR192.21(g). DOE indicates that preliminary site and regional data appear to support a limited use classification based on Total Dissolved Solids exceerling 10,000 mg/L. DOE also plans to collect and develop additional site and regional groundwater data to support a supplemental standards demonstration in futuie revisions of the SOWP, Based on its review, the staff has no technical objection to DOE's utilization of the proposed strategy at the former Grand Junction processing site. However, because a no remediction approach is heavily dependent on a determination of no impact to human health or the environment, the staff recommends that DOE emphasize the collection and evaluation of potentiometric data from the Dakota Sandstone aquifer beneath the river alluvium in section 5.3.5 of the SOWP. These data and evaluations are necessary to assure that the upward ,
vertical gradient described in the SOWP is consistent throughout the areal extent of the contaminant plume, if you have any questions, please contact the NRC Project Manager, Mrs. Charlotte Abrams, at (301)415-5806.
Sincerely, (Original signed by)
Joseph J. Holonich, Chief Uranium Recovery Branch i Division of Waste Management Office of Nuclear Material Safety yLlO O 9711130229 WM 9711" and Safeguards PDR ppR /
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