Preliminary report on the ecological assessment of Waste Area Grouping 5 at Oak Ridge National Laboratory, Oak Ridge, Tennessee. Environmental Restoration Program
In support of the remedial investigation for Waste Area Grouping (WAG) 5, staff of the Environmental Sciences Division of Oak Ridge National Laboratory have conducted preliminary ecological assessment activities. A screening level ecological risk assessment has been completed, ambient toxicity tests have been conducted on streams and seeps within WAG 5, WAG 5 has been surveyed for rare and endangered species and wetlands, and wild turkeys that may feed on contaminated vegetation and insects in WAG 5 have been screened for beta-emitting isotopes and {sup 137}Cs. The screening-level ecological risk assessment identified some data gaps that were addressed in the ecological assessment plan. These include gaps in data on the toxicity of surface water and soil within WAG 5 and on the status of rare and endangered species. In addition, the screening-level risk assessment identified the need for data on the level of contaminants in wild turkeys that may be consumed by predatory wildlife and humans. Three rounds of ambient toxicity tests on six streams and seeps, using the microcrustacean Ceriodaphnia, have identified potential toxicity in three of the sample sites. Further tests are required to identify the toxicant. No rare or endangered animal species have been identified in the WAG 5 area.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 10183791
- Report Number(s):
- ORNL/ER-137; ON: DE93000547
- Resource Relation:
- Other Information: PBD: Sep 1992
- Country of Publication:
- United States
- Language:
- English
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11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
54 ENVIRONMENTAL SCIENCES
ALPHA-BEARING WASTES
RADIOACTIVE WASTE DISPOSAL
LOW-LEVEL RADIOACTIVE WASTES
RISK ASSESSMENT
ECOSYSTEMS
ORNL
SOLID WASTES
REMEDIAL ACTION
SAMPLING
WATER
SOILS
SEDIMENTS
TOXICITY
ENDANGERED SPECIES
CONTAMINATION
CESIUM 137
FOWL
CRUSTACEANS
052002
054000
540250
540350
WASTE DISPOSAL AND STORAGE
HEALTH AND SAFETY
SITE RESOURCE AND USE STUDIES