Background information for the PAR Pond safety and health hazard analysis

Technical Report · Mon Jun 15 00:00:00 EDT 1992

DOI:https://doi.org/10.2172/6739005· OSTI ID:6739005

Hamby, D M ^[1]; Whicker, F W ^[2]

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1. Westinghouse Savannah River Co., Aiken, SC (United States)
2. Savannah River Ecology Lab., Aiken, SC (United States)

The baseline risk assessment [WSRC91] has demonstrated that the hazard at PAR Pond is solely from external exposure to Cs-137, a gamma emitting radionuclide. Between 1954 and 1964, approximately 222 curies of radioactive cesium (Cs-134 and Cs-137) were released to the Lower Three Runs Creek system from R Reactor [Ma9l]. These releases were associated with leaking fuel and target slugs in the reactor disassembly basin. Independent studies show that approximately 45 curies of Cs-137 (half-life of 30 years) still resides in the sediments of PAR Pond [Wh9l; Wi9l]; Cs-134 has a relatively short half-life (2 years) and has decayed to insignificant quantities since it was released.

• Research Organization: Savannah River Site (SRS), Aiken, SC (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC09-89SR18035
• OSTI ID: 6739005
• Report Number(s): WSRC-TR-92-303; ON: DE93004256
• Country of Publication: United States
• Language: English

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