Drilling and geohydrologic data for test hole USW UZ-1, Yucca Mountain, Nye County, Nevada
- Geological Survey, Denver, CO (USA)
- Ecology and Environment, Inc., Buffalo, NY (USA)
This report presents data collected to determine the hydrologic characteristics of tuffaceous rocks penetrated in test hole USW UZ-1. The borehole is the first of two deep, large-diameter, unsaturated-zone test holes dry drilled using the vacuum/reverse-air-circulation method. This test hole was drilled in and near the southwestern part of the Nevada Test Site, Nye County, Nevada, in a program conducted in cooperation with the US Department of Energy. These investigations are part of the Yucca Mountain Project (formerly the Nevada Nuclear Waste Storage Investigations) to identify a potentially suitable site for the storage of high-level radioactive wastes. Data are presented for bit and casing configurations, coring methods, sample collection, drilling rate, borehole deviation, and out-of-gage borehole. Geologic data for this borehole include geophysical logs, a lithologic log of drill-bit cuttings, and strike and distribution of fractures. Hydrologic data include water-content and water-potential measurements of drill-bit cuttings, water-level measurements, and physical and chemical analyses of water. Laboratory measurements of moisture content and matric properties from the larger drill-bit cutting fragments were considered to be representative of in-situ conditions. 3 refs., 5 figs., 10 tabs.
- Research Organization:
- US Geological Survey, Denver, CO (United States)
- DOE Contract Number:
- AI08-78ET44802
- OSTI ID:
- 137961
- Report Number(s):
- USGS-OFR-90-354; ON: DE91006167
- Resource Relation:
- Other Information: PBD: 1990
- Country of Publication:
- United States
- Language:
- English
Similar Records
Geohydrologic data from drill-bit cuttings and rotary cores from test hole USW UZ-13, Yucca Mountain Area, Nye County, Nevada
Borehole and geohydrologic data for test hole USW UZ-6, Yucca Mountain area, Nye County, Nevada