Analysis of Aquifer Tests Conducted at Boreholes USW G-2, 1996, Yucca Mountain, Nevada
Author: Grady M. O'Brien
Publisher:
Published: 1998
Total Pages: 32
ISBN-13:
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Author: Grady M. O'Brien
Publisher:
Published: 1998
Total Pages: 32
ISBN-13:
DOWNLOAD EBOOKAuthor: Grady M. O'Brien
Publisher:
Published: 1998
Total Pages: 34
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DOWNLOAD EBOOKAuthor:
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Published: 1999
Total Pages: 220
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DOWNLOAD EBOOKAuthor: Arthur L. Geldon
Publisher: Geological Society of America
Published: 2004-01-01
Total Pages: 100
ISBN-13: 0813723817
DOWNLOAD EBOOKAuthor: Grady M. O'Brien
Publisher:
Published: 1998
Total Pages: 22
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Published: 1998
Total Pages: 26
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DOWNLOAD EBOOKBorehole USW G-2 is located north of Yucca Mountain in a large-hydraulic-gradient area. Two single-borehole aquifer tests were conducted in the borehole during 1996. A 54.9-hour pumping period was conducted February 6--8, 1996, and a 408-hour pumping period was conducted April 8--25, 1996. The purpose of testing was to obtain estimates of the aquifer-system transmissivity and to determine if perched water was affecting the observed water level in borehole USW G-2. This report presents and analyzes data collected between February 6 and December 17, 1996. Analysis of the aquifer-test data indicated that fracture flow, dual-porosity flow, and boundary-affected flow conditions were observed in the drawdown and recovery data. Transmissivity estimates ranged from 2.3 to 12 meters squared per day. The most representative transmissivity estimate for the interval tested is the early-time mean transmissivity of 9.4 meters squared per day. The Calico Hills Formation was the primary formation tested, but the top 3 meters of the nonpumping water column was within the overlying Topopah Spring Tuff. Persistent residual drawdown following pumping more than 6 million liters of water during aquifer testing may indicate that the bore-hole intersected a perched water body. After 236 days of recovery, residual drawdown was 0.5 meter. The quantitative effect of the perched water on the observed water level in borehole USW G-2, however, cannot be determined with the available data.
Author: John S. Stuckless
Publisher: Geological Society of America
Published: 2012
Total Pages: 402
ISBN-13: 0813712092
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Publisher:
Published: 2000
Total Pages: 646
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DOWNLOAD EBOOKAuthor: Geological Survey (U.S.)
Publisher:
Published: 2000
Total Pages: 80
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DOWNLOAD EBOOKAuthor: Geological Survey (U.S.)
Publisher:
Published: 2000
Total Pages: 304
ISBN-13:
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