Epidemiologic Studies

Records Relating to Cesium at the K-25 Plant

[Report on the] Preliminary Screening of Contaminants in the Off-Site Surface Water Environment Downstream of the U.S. Department of Energy Oak Ridge Reservation, November 1991

Location:

Active:
Inactive:
K-1400, Waste Management Division Document Center

Originating Office: Energy Systems Environmental Restoration Program

Finding Aids: Document center database

Disposition AuthorityUnscheduled

Series Description: This 1991 report describes conservative and nonconservative screening methods used to determine which contaminants that eventually reach the Clinch and Tennessee rivers through tributary branches should be considered high priority for remediation. The following 8 "reaches" (areas) were evaluated: Melton Hill Reservoir (Y-12); Clinch River from the Poplar Creek effluence to Melton Dam (ORNL, Y-12); Poplar Creek from mouth to confluence with East Fork Poplar Creek (Y-12, ORGDP); Clinch River from mouth to confluence with Poplar Creek (ORNL, Y-12, ORGDP); Watts Bar Reservoir from Watts Bar Dam to confluence with the Clinch River (ORNL, Y-12, ORGDP); Norris Reservoir (reference); Poplar Creek above confluence with East Fork Poplar Creek (reference); and the Tennessee River from confluence with the Clinch River to Fort Loudon Dam (reference). Drawings of these areas are provided.
. Results are provided by contaminant in five tables in the appendices. The data in the tables include the reach number, the pathway, toxicity type, and measurement unit, which may be one of the following: milligram per liter, milligram per kilogram, becquerels per kilogram, becquerels per liter, sieverts per becquerel, sieverts per disintegration, becquerel per square meter, or milligram per kilogram per day (mg/l, mg/kg, Bq/kg, Bq/l, Sv/Bq, Sv/d, Bq/m2, mg/kg/day). Cesium-137 is included in the first five tables. The appendices also discuss health risks/concerns for workers and local populations.

Data Elements: 89, 118, 124