| Abstract: | Test well USW H-4 is one of several wells drilled in the southwestern part of the Nevada Test Site for hydraulic testing, hydrologic monitoring, and geophysical logging. The work was performed in cooperation with the U.S. Department of Energy. The rocks penetrated by the well to a total depth of 1,219 m were volcanic tuffs of Tertiary age. Hydraulic coefficients calculated from pumping test data indicate that transmissivity ranged from 200 to 790 sq m/day. A radioactive tracer, borehole flow survey indicated that the two most productive zones during this borehole flow survey occurred in the upper part of the Bullfrog Member of the Crater Flat Tuff, depth interval from 721 to 731.5m, and in the underlying part of the Tram Member, depth interval from 864 to 920m. The water is predominantly a sodium biocarbonate type with small concentrations of calcium, magnesium, and sulfate. The apparent age of this composite water sample was determined by carbon-14 date of 17,200 years before present. (USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 25526 |
| Citation Author: | Whitfield, M. S.; Eshom, E. P.; Thordarson, William; Schaefer, D. H. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | - |
| Citation Editor: | |
| Citation End Page: | |
| Citation Issue: | |
| Citation Keywords: | |
| Citation Language: | ENGLISH |
| Citation Larger Work Title: | |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | iv, 33 p. :ill., map ;28 cm. |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | U.S. Geological Survey, Water Resources Division, |
| Citation Series: | Water-Resources Investigations Report |
| Citation Series Code: | WRI |
| Citation Series Number: | 85-4030 |
| Citation Search Results Text: | Geohydrology of rocks penetrated by test well USW H-4, Yucca Mountain, Nye County, Nevada; 1985; WRI; 85-4030; Whitfield, M. S.; Eshom, E. P.; Thordarson, William; Schaefer, D. H. |
| Citation Start Page: | |
| Citation Volume: | |
| Citation Year: | 1985 |
| Type: | citation/reference |
| Text: | Geohydrology of rocks penetrated by test well USW H-4, Yucca Mountain, Nye County, Nevada; 1985; WRI; 85-4030; Whitfield, M. S.; Eshom, E. P.; Thordarson, William; Schaefer, D. H. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/wri/1985/4030/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/wri/1985/4030/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, Water Resources Division, |
