Document Details

Preliminary Assessment of Existing Contamination In Bear Creek Valley Watershed Area and Potential Remedial Actions For Mitigating its Impact on Bear Creek
Subject Terms:
Y-12 Plant, Bear Creek Valley; contamination, waste disposal; organic compounds, EPA; watershed, ground water
Document Location:
DOE INFORMATION CENTER 1 Way, Oak Ridge, TN 37831; Eva Butler; Phone: 865-241-4780; Toll-Free: 800-382-6938, Option 6; FAX: 865-574-3521; Email:
Document Categories:
Health, Safety and Environment\Waste Management; Health, Safety and Environment\Waste Management
Document Type:
Publication Date:
1984 Jun 15
Declassification Status:
Never classified
Document Pages:
Accession Number:
Document Number(s):
Originating Research Org.:
Martin Marietta Energy Systems, Incorporated
OpenNet Entry Date:
1998 Jun 16
This report discusses the preliminary assessment of existing contamination in Bear Creek Valley Watershed Area and potential remedial actions for mitigating its impact on Bear Creek. The investigations were initiated in 1983 when the Tennessee Department of Health and Environment (TDHE) expressed concern over the presence of contaminants in Bear Creek and requested DOE to evaluate whether those contaminants could be adversely affecting fish, other aquatic organisms, and the water quality of the stream. The principal finding so far is that there is no imminent hazard or risk to public health, but the contamination will require remedial actions to minimize potential adverse impacts. The evidence shows concentrations of volatile organic compounds in Bear Creek and some of its tributaries, and also indicated that these same compounds, together with above-background concentrations of metals and other waste constituents, are present in the shallow ground-water system immediately adjacent to the waste disposal facilities. No wells are used for drinking water purposes in Bear Creek Valley nor is water taken directly from Bear Creek for this purpose. DOE plans to complete a second phase of investigations by mid-CY-1985 at which time a plan for remedying the situtation will be submitted to the TDHE and the Environmental Protection Agency (EPA). That plan will define the steps to be taken to reduce seepage of contaminants from the wastes and to control the movement of contaminated water toward and into the surface and ground waters. The remedial work may involve installation of water treatment facilities, recovery wells, drains, and subsurface cutoff walls. This report assesses the extent of the contamination determined to date, the methods available for its control, a review of the additional investigations to be undertaken, and a schedule for completing the proposed investigations and remedial action options studies.

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