Interim hydrogeologic characterization report and ground water monitoring system for the nonradioactive dangerous waste landfill, Hanford Site, Washington
This report documents the hydrogeologic characterization and installation of ground water monitoring wells at the Nonradioactive Dangerous Waste (NRDW) Landfill. A total of nine wells were installed to determine characteristics such as ground water quality, hydraulic conductivity, and continuity of hydrostratigraphic units. Seven of these wells compose a detection level ground water monitoring system that meets the requirements for interim status ground water monitoring under 40 CFR 265, Subpart F. Ground water flow is generally west to east across the NRDW Landfill, and the gradient is very small (about 0.1 ft/1300 ft). The uppermost section of the aquifer is unconfined and highly transmissive. Transmissivity values range from approximately 100,000 to 300,000 ft/sup 2//d. The hydraulic conductivity ranges from 1700 to 5000 ft/d, based on a saturated thickness of 60 ft. A relatively thin clayey silt unit, of low-permeability, is laterally continuous under the NRDW Landfill and acts as the base of the aquifer for the purpose of monitoring potential vertical contaminant migration. Results from water samples collected from monitoring wells were compared with interim primary drinking water standards, and no constituent was found to exceed these standards.
- Research Organization:
- Westinghouse Hanford Co., Richland, WA (USA)
- DOE Contract Number:
- AC06-87RL10930
- OSTI ID:
- 6971903
- Report Number(s):
- WHC-EP-0021; ON: DE88011910
- Resource Relation:
- Other Information: Paper copy only, copy does not permit microfiche production
- Country of Publication:
- United States
- Language:
- English
Similar Records
Ground-water monitoring compliance projects for Hanford Site facilities:
RCRA ground water assessment plans and annual ground water quality assessment reports at interim status facilities
Related Subjects
GROUND WATER
WATER POLLUTION MONITORS
HANFORD RESERVATION
WASTE DISPOSAL
HAZARDOUS MATERIALS
SANITARY LANDFILLS
SITE CHARACTERIZATION
ENVIRONMENTAL TRANSPORT
WATER WELLS
HYDROGEN COMPOUNDS
MANAGEMENT
MASS TRANSFER
MATERIALS
MEASURING INSTRUMENTS
MONITORS
NATIONAL ORGANIZATIONS
OXYGEN COMPOUNDS
US DOE
US ERDA
US ORGANIZATIONS
WASTE MANAGEMENT
WATER
WELLS
510200* - Environment
Terrestrial- Chemicals Monitoring & Transport- (-1989)
520200 - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)