Piezometer completion report for borehole cluster sites DC-19, DC-20, and DC-22
This report describes the design and installation of multi-level piezometers at borehole cluster sites DC-19, DC-20 and DC-22. The network of borehole cluster sites will provide facilities for multi-level water-level monitoring across the RRL for piezometer baseline monitoring and for large-scale hydraulic stress testing. These groundwater-monitoring facilities were installed between August 1983 and March 1984. Three series of piezometer nests (A-, C- and D-series) were installed in nine hydrogeologic units (monitoring horizons) within the Columbia River Basalt Group at each borehole cluster site. In addition to the piezometer facilities, a B-series pumping well was installed at borehole cluster sites DC-20 and DC-22. The A-series piezometer nest monitors the basal Ringold sediments and the Rattlesnake Ridge interbed. The C-series piezometer nests monitors the six deepest horizons, which are in increasing depth, the Priest Rapids interflow, Sentinel Gap flow top, Ginkgo flow top, Rocky Coulee flow top, Cohassett flow top and Umtanum flow top. The D-series piezometer monitors the Mabton interbed. The B-series pumping well was completed in the Priest Rapids interflow. 21 refs., 6 figs., 6 tabs.
- Research Organization:
- Rockwell International Corp., Richland, WA (USA). Rockwell Hanford Operations
- Sponsoring Organization:
- DOE/RW
- DOE Contract Number:
- AC06-77RL01030
- OSTI ID:
- 5449982
- Report Number(s):
- RHO-BWI-TI-226-Rev.1; ON: TI90003469
- Country of Publication:
- United States
- Language:
- English
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Drilling and completion specifications for CA series multilevel piezometers
Drilling, piezometer design, and testing specifications for the DC-19, DC-20 and DC-22 borehole clusters and RRL-2B
Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
GEOLOGY
STRATIFICATION
GROUND WATER
MONITORING
HIGH-LEVEL RADIOACTIVE WASTES
RADIOACTIVE WASTE DISPOSAL
HYDROLYSIS
MEASURING METHODS
PIEZOMETRY
ROCK MECHANICS
WELL LOGGING
BASALT
BOREHOLES
COMPILED DATA
HANFORD RESERVATION
MAPPING
MATHEMATICAL MODELS
RADIOACTIVE WASTE MANAGEMENT
SITE CHARACTERIZATION
STRESS ANALYSIS
VITRIFICATION
WATER QUALITY
CAVITIES
CHEMICAL REACTIONS
DATA
DECOMPOSITION
ENVIRONMENTAL QUALITY
HYDROGEN COMPOUNDS
IGNEOUS ROCKS
INFORMATION
LYSIS
MANAGEMENT
MATERIALS
MECHANICS
NATIONAL ORGANIZATIONS
NUMERICAL DATA
OXYGEN COMPOUNDS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
ROCKS
SOLVOLYSIS
US DOE
US ERDA
US ORGANIZATIONS
VOLCANIC ROCKS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WATER
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