Geohydrologic characterization of the area surrounding the 183-H Solar Evaporation Basins
The purpose of this investigation is to achieve regulatory compliance with the applicable ground-water monitoring requirements of the Resource Conservation and Recovery Act (RCRA) and the Washington Administrative Code (WAC). An assessment-level compliance monitoring project was established for the 183-H Basins because hazardous waste constituents were known to have entered the ground water beneath the facility. Three phases were defined for this project, with work being concentrated in five areas: geology, hydrology, ground-water monitoring, geochemistry, and ground-water modeling. These characterization activities have resulted in the definition of principal lithologic and hydrostratigraphic units. Ground-water monitoring results indicated a contamination peak, which occurred between April and August 1986. Further monitoring has shown that nitrate, sodium, gross alpha, and gross beta are the clearest indicators of ground-water contamination attributable to the 183-H Basins. In addition, the concentrations of these contaminants are affected by variations in Columbia River stage. Future studies will focus on continued ground-water monitoring throughout the closure and post-closure periods for the 183-H Basins, sampling of the Columbia River and nearby ground-water springs, and soil sampling adjacent to the facility. 45 refs., 90 figs., 19 tabs.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 6574504
- Report Number(s):
- PNL-6728; ON: DE89005508
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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54 ENVIRONMENTAL SCIENCES
GROUND WATER
MONITORING
REGULATIONS
COMPLIANCE
ALPHA PARTICLES
BETA PARTICLES
COLUMBIA RIVER
EVALUATION
GEOCHEMISTRY
GEOLOGY
HANFORD RESERVATION
HAZARDOUS MATERIALS
HYDROLOGY
MATHEMATICAL MODELS
NITRATES
RESOURCE RECOVERY ACTS
SODIUM
ALKALI METALS
CHARGED PARTICLES
CHEMISTRY
ELEMENTS
HYDROGEN COMPOUNDS
LAWS
MATERIALS
METALS
NATIONAL ORGANIZATIONS
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
RIVERS
STREAMS
SURFACE WATERS
US DOE
US ERDA
US ORGANIZATIONS
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