H-Area Seepage Basins: Environmental information document
The basins contain liquid low-level radioactivity and chemicals from the H-Area separations facility. Wells monitor the water table in the vicinity of the basins and also underlying aquifers to detect any vertical contaminant migration. A statistical analysis of monitoring data from this site indicates elevated levels of chloride, fluoride, manganese, mercury, nitrate, sodium, and total radium in the groundwater. The predominant pathways for human exposure to contaminants are surface, subsurface, and atmospheric transport. Modeling calculations were performed to determine the risks to humans via these pathways for the postulated closure options. Modeling calculations were also performed to determine ecological impacts. The environmental impact evaluation indicates that the relative human health risks for all closure options are low. Tritium, the dominant radionuclide, reached a maximum risk in Year -29 (from 1985) of 2.7E-04 HE/yr. Results of the atmospheric pathway modeling indicate that risks associated with the no action option are 2 or more orders of magnitude greater than the waste removal closure option for both radionuclides and chemicals. Ecological analysis indicates that the choice of closure option has no effect on the maximum surface water quality impacts. Implementation of no waste removal or waste removal closure options would not appreciably accelerate a decline in groundwater outcrop concentrations. 49 refs., 41 figs., 94 tabs.
- Research Organization:
- Savannah River Lab., Aiken, SC (USA)
- DOE Contract Number:
- AC09-76SR00001
- OSTI ID:
- 6351712
- Report Number(s):
- DPST-85-706; ON: DE87013041
- Country of Publication:
- United States
- Language:
- English
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54 ENVIRONMENTAL SCIENCES
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
AIR
ALKALI METAL ISOTOPES
ALKALINE EARTH ISOTOPES
ALPHA DECAY RADIOISOTOPES
AMERICIUM 241
AMERICIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CERIUM 131
CERIUM 144
CERIUM ISOTOPES
CESIUM 134
CESIUM 137
CESIUM ISOTOPES
COBALT 60
COBALT ISOTOPES
CURIUM 243
CURIUM 244
CURIUM ISOTOPES
DAYS LIVING RADIOISOTOPES
ECOLOGICAL CONCENTRATION
ELECTRON CAPTURE RADIOISOTOPES
ENVIRONMENTAL EXPOSURE PATHWAY
ENVIRONMENTAL TRANSPORT
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FLUIDS
GASES
GROUND WATER
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IODINE 124
IODINE ISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
LOW-LEVEL RADIOACTIVE WASTES
MANAGEMENT
MASS TRANSFER
MATERIALS
MATHEMATICAL MODELS
MINUTES LIVING RADIOISOTOPES
NATIONAL ORGANIZATIONS
NIOBIUM ISOTOPES
NUCLEAR FACILITIES
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
OXYGEN COMPOUNDS
PLUTONIUM 238
PLUTONIUM 239
PLUTONIUM 240
PLUTONIUM ISOTOPES
PONDS
PROMETHIUM 147
PROMETHIUM ISOTOPES
RADIOACTIVE EFFLUENTS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTES
RADIOECOLOGICAL CONCENTRATION
RADIOISOTOPES
RADIONUCLIDE MIGRATION
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
RISK ASSESSMENT
RUTHENIUM 103
RUTHENIUM 106
RUTHENIUM ISOTOPES
SAMPLING
SAVANNAH RIVER PLANT
SEDIMENTS
SETTLING PONDS
SOILS
STRONTIUM 89
STRONTIUM 90
STRONTIUM ISOTOPES
SURFACE WATERS
TECHNETIUM 99
TECHNETIUM ISOTOPES
THORIUM 232
THORIUM ISOTOPES
TRITIUM
URANIUM 233
URANIUM 234
URANIUM 235
URANIUM 238
URANIUM ISOTOPES
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WATER
YEARS LIVING RADIOISOTOPES