Dose Modeling for a Health and Safety Plan (HASP) for an Inactive Pre-Cooler Pond at a DOE Nuclear Facility
P. L. Lee
The Savannah River Site (SRS) is part of the U.S. Department of Energy (DOE) nuclear weapons complex. It was constructed in the early 1950's to produce special nuclear materials (such as 239Pu and tritium) used in the production of nuclear weapons. The 800 square kilometer site is located in South Carolina, about 24 kilometers southeast of Augusta, Georgia that formerly operated five reactors. Pond C is a pre-cooler pond that is a part of the PAR Pond cooling water system created to facilitate cooling of the P and R reactors. It was separated from PAR Pond to increase the cooling efficiency during reactor operation. As a recirculating reservoir for the P and R Reactors, Pond C received contaminated cooling water from 1958 through 1963. Although currently inactive, radionuclides remain in the pond water and surface sediments. Historical characterizations of Pond C produced measured radionuclide concentrations and underwater gamma surveys of sediments at various depth contours. Potential health and safety hazards to workers during operations at Pond C are identified for both pond characterizations. The appropriate safety and health control procedures for employee protection from these hazards are determined in support of the Health and Safety Plan (HASP) required before any operation can be performed at a Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) site as per CFR (1996). Potential doses are estimated for an onsite worker exposed to Pond C sediments. The results indicate a need for diverse characterization methods when assessing potential radiological hazards for HASP preparation to assess exposure conditions when the pool is drained at various levels.
This abstract was presented at the 35th Annual Midyear Meeting, "Decommissioning and Environmental Restoration", Poster Session, 2/17/2002 - 2/20/2002, held in Orlando, FL.