Composite analysis for low-level waste disposal in the 200 area plateau of the Hanford Site

摘要: This report presents the first iteration of Composite Analysis for Low-Level Waste Disposal in 200 Area Plateau Hanford Site (Composite Analysis) prepared response to U.S. Department Energy Implementation Plan Defense Nuclear Facility Safety Board Recommendation 94-2. The is a companion document published analyses four active or planned low-level waste disposal actions: solid burial grounds West Area, East Environmental Restoration Facility, and facilities immobilized low-activity waste. A single was considering only sources on Plateau. performance objectives prescribed guidance were 100 mrem year examination lower dose (30 year) ensure {open_quotes}as low as reasonably achievable{close_quotes} concept followed. limit maximum allowable all-pathways 1000 years following closure, which assumed occur 2050. These apply an accessible environment defined area between buffer zonemore » surrounding exclusive management Plateau, Columbia River. Estimating doses hypothetical future members public multistep process involving estimation simulation inventories; release environment; migration through vadose zone, groundwater, atmospheric pathways; exposure dose. Doses estimated scenarios based agriculture, residential, industrial, recreational land use. radionuclides included zone groundwater pathway releases carbon-14, chlorine-36, selenium-79, technetium-99, iodine-129, uranium isotopes.« less