Investigation of radionuclide release from Solid Waste Disposal Area 3, Oak Ridge National Laboratory

Site characterization plan for groundwater in Waste Area Grouping 1 at Oak Ridge National Laboratory, Oak Ridge, Tennessee

“…Air rotary drilling methods used in WAG 3 piezometer installation to the west of WAG 1 would not identify cavities. However, Stueber et al (1981) indicate that off site migration of 9°Sr is along small, presumably strike-parallel cavities in Unit G near the geologic contact with Unit F.…”

“…The occurrence of stratabound groundwater flow at WAG 1 has been described by Ketelle and Lee (1992). Observations of stratabound flow were made in Melton Valley (Webster 1976) and in WAG 3 (Stueber et al 1981). Stratabound flow has also been suggested to occur in Chestnut Ridge (Lee and , in a groundwater dye tracer test in Bear Creek Valley (Lee et al 1989), and by the configuration of the S-3 Pond plume at the Y-12 plant (Geraghty and Miller 1990).…”

Annual report of the Environmental Restoration Monitoring and Assessment Program at Oak Ridge National Laboratory for FY 1992. Environmental Restoration Program

“…The NWT enters WOC downstreamfrom the main plant area and could contaminate the lower reach of WOC within WAG 1 and ultimately the lower reaches of WOC and WOL (WAG 2) as well as the Clinch River. Monitoring data (Energy Systems 1990) and historical studies (Steuber et al 1981) suggest that WAG 3 contributes small quantities of_r and lsTCs to the NWT. However, no data are available on heavy metal or organic contamination.…”

Hydrologic data summary for the White Oak Watershed at Oak Ridge National Laboratory, Oak Ridge, Tennessee, October 1990--December 1991

“…Characterization data suggest that SWSA ?, has historically been a source of 9°Sr, and samples of surface soils and gravel in the contractors landfill area of WAG 3 revealed 9°Srand )3'7Cswith 6°Co at or near detection levels. Monitoring data (Energy Systems 1990) and historical studies (Stueber et al 1981) suggest that WAG 3 contributes small quantities of 9°Sr and 137Cs to the NWT. However, no data are available on heavy metal or organic contamination.…”