Exposure Pathways and Scenarios for the E-Area Low-Level Waste Facility Performance Assessment
- Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
In support of the Savannah River Site (SRS) Performance Assessment (PA), the member of the public (MOP) and intruder exposure pathways must be defined to calculate receptor doses. The primary mechanism for transport of radionuclides from the SRS E-Area Low-Level Waste Facility (ELLWF) to the MOP is expected to be leaching to the groundwater, groundwater transport to the well at 100-m, and subsequent internal or external human exposure. The main transport mechanism for the inadvertent intruder is direct intrusion into the waste zone or excavation of areas near the waste zone. Leaching to the groundwater and use of the contaminated groundwater are not calculated for the inadvertent intruder in accordance with the DOE position (U.S. DOE 2007). Intrusion scenarios are not assumed to occur, and the DOE All-Pathways performance objective does not apply, until the 100-year institutional control period ends, after which time it is assumed that no active ELLWF facility maintenance will be conducted. Surface water and recreational related pathways are evaluated in the 2010 SRS CA (SRNL 2010) and not considered in the SRS PA analyses.
- Research Organization:
- Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
- Sponsoring Organization:
- USDOE Office of Environmental Management (EM)
- DOE Contract Number:
- AC09-08SR22470
- OSTI ID:
- 1591781
- Report Number(s):
- SRNL-STI-2020-00007; TRN: US2102509
- Country of Publication:
- United States
- Language:
- English
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