Epidemiologic Studies

Records Relating to Cesium at the K-25 Plant

Evaluation of 1985-1986 Corrective Actions at Oak Ridge National Laboratory [ORNL] Liquid Waste Disposal Trench 7, April 1991

Location:

Active:
Inactive:
K-1210, Environmental Restoration Program Document Management Center

Originating Office: Environmental Sciences Division

Finding Aids: Document center databases

Disposition AuthorityUnscheduled

Series Description: This report evaluates the efficacy of corrective actions taken at Trench 7 to reduce the discharge of radionuclides, primarily by injecting grout into the soil. The report outlines the history of the trench; problems associated with it prior to corrective actions; the corrective grouting activities and results, including post-injection monitoring results; and conclusions. Monitoring data tables include a sample identification, well number, and results for several parameters, including cesium-137, cobalt-60, strontium-90, and gross alpha and beta activity in becquerels per liter (Bq/l). Appendices include grout specifications and the proposal reports. Photographs illustrate the trench during and after construction and the surrounding area.

Data Elements: 89, 103, 124