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U.S. Department of Energy
Office of Scientific and Technical Information

Geohydrologic data for test well USW H-6 Yucca Mountain area, Nye County, Nevada

Technical Report ·
OSTI ID:59656

This report presents the following data for test well USW H-6: drilling operations, lithology, availability of borehole geophysical logs, water levels, future availability of core analyses, water chemistry, pumping tests, and packer-injection tests. The well is one of a series of test wells drilled in and near Yucca Mountain adjacent to the Nevada Test Site, Nye County, Nevada, in cooperation with the US Department of Energy. These investigations are part of the Nevada Nuclear Waste Storage Investigations to identify suitable sites for underground storage of high-level radioactive wastes. Test well USW H-6 was drilled to a total depth of 1220 meters. Rocks penetrated are predominantly ash-flow tuffs. Lava was encountered from 877 to 1126 meters. The composite static water level is approximately 526 meters below land surface. The well was pumped during two periods. Maximum drawdown was about 18 meters after pumping for 4822 minutes at 28 liters per second, and 12 meters after pumping for 2226 minutes at 27 liters per second. A borehole flow survey showed that 91% of the water withdrawn from the well came from the depth intervals from 616 to 631 meters, and from 777 to 788 meters. 8 references, 18 figures, 6 tables.

Research Organization:
Geological Survey, Denver, CO (United States); Fenix and Scisson, Inc., Mercury, NV (United States)
DOE Contract Number:
AI08-78ET44802
OSTI ID:
59656
Report Number(s):
USGS-OFR--83-856; ON: DE84009351
Country of Publication:
United States
Language:
English