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

GROUND WATER TEST WELL D, NEVADA TEST SITE, NYE COUNTY, NEVADA

Technical Report ·
OSTI ID:4809669
Ground-water test well D was drilled to a depth of 1,950 feet with rotary and cable-tool drilling rigs. It penetrated alluvium from 0 to 1,505 feet; tuff of Tertiary age from 1,505 to 1,730 feet; talus (?) breccia from 1,730 to 1,750 feet; and rocks of Mississippian to Pennsylvanian age from 1,750 to 1,950 feet. The Paleozoic bedrock in the depth interval from about 1,750 to 1,840 feet is composed mainly of interbedded dolomite and limestone; in the interval 1,840 to 1,950 feet it consists of argillite. The static water level is about 1,733 feet below the land surface (altitude, 2,417 feet). The aquifer in test well D comprises the talus (?) breceia and the carbonate rocks in the interval from 1,730 to 1,840 feet. Tests by bailing indicated that the minimum transmissibility of the aquifer is about 90 gallons per day per foot. The specific capacity was less than 0.3 gallons per minute per foot after 3 1/4 hours of bailing at a rate of 18 gallons per minute. These tests also indicated that the transmissibility of the argillite stratum underlying the aquifer is extremely low. A suite of geophysical logs, a summary of contract costs, and detailed descriptions of the drilling machines, drilling operations, and the casing and cementing operations are presented. (auth)
Research Organization:
Geological Survey, Washington, D.C.
NSA Number:
NSA-16-010278
OSTI ID:
4809669
Report Number(s):
TEI-803
Country of Publication:
United States
Language:
English