Superfund record of decision (EPA Region 4): USDOE Oak Ridge Reservation, Lower Watts Bar Reservoir Operable Unit, Oak Ridge, TN, September 29, 1995

Technical Report · Thu Feb 01 04:00:00 EST 1996

OSTI ID:218659

The decision document presents the selected remedial action for the Lower Watts Bar Reservoir (LWBR) Operable Unit (OU). The selected remedy for the LWBR OU addresses the contamination of the Watts Bar Reservoir area from Tennessee River mile (TRM) 529.9 at Watts Bar Dam upstream to TRM 567.5 at the confluence of the Clinch and Tennessee Rivers. The response action was chosen from a full range of actions that could possibly address the two primary risks identified in the remedial investigation (RI). Risks to human health posed by LWBR include exposure to metals in deep sediment of the main river channel and to polychlorinated biphenyls (PCBs), chlordane, aldrin, arsenic, and mercury in fish tissue. The same response actions are applicable to reducing ecological risk in LWBR. The selected remedy uses existing institutional controls to reduce exposure to contaminated sediment; fish consumption advisories to reduce exposure to contaminants in fish tissue; and annual monitoring to detect changes in LWBR contaminant levels or mobility.

• Research Organization: Environmental Protection Agency, Washington, DC (United States). Office of Emergency and Remedial Response
• OSTI ID: 218659
• Report Number(s): PB--95-964033/XAB; EPA/ROD/R--04-95/249
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ADMINISTRATIVE PROCEDURES
ALDRIN
ARSENIC
CHLORINATED AROMATIC HYDROCARBONS
HAZARDOUS MATERIALS
MERCURY
METALS
OAK RIDGE RESERVATION
PESTICIDES
POLYCHLORINATED BIPHENYLS
RADIOISOTOPES
REMEDIAL ACTION
RISK ASSESSMENT
SITE CHARACTERIZATION
US SUPERFUND
WATER RESERVOIRS