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Page 3460, results 86476 - 86500

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Not all publications have extents, not all extents are completely accurate
Ground-water flow analysis of the Mississippi Embayment aquifer system, South-Central United States
J. K. Arthur, R.E. Taylor
1998, Professional Paper 1416-I
The Mississippi Embayment aquifer system is composed of six regional aquifers covering about 160,000 square miles in parts of Alabama, Arkansas, Illinois, Kentucky, Louisiana, Mississippi, Missouri, and Tennessee. The flow analysis presented in this report as part of the Gulf Coast Regional Aquifer-System Analysis study pertains to five aquifers in...
Digital map of specific yield for the High Plains Aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming
J. R. Cederstrand, M.F. Becker
1998, Open-File Report 98-414
This digital data set consists of specific yield percentage contours and polygons for the High Plains aquifer in the central United States. The High Plains aquifer extends from south of 32 degrees to almost 44 degrees north latitude and from 96 degrees 30 minutes to almost 106 degrees west longitude....
Ground-water flow in the surficial aquifer system and potential movement of contaminants from selected waste-disposal sites at Cecil Field Naval Air Station, Jacksonville, Florida
K. J. Halford
1998, Water-Resources Investigations Report 97-4278
As part of the Installation Restoration Program, Cecil Field Naval Air Station, Jacksonville, Florida, is considering remedialaction alternatives to control the possible movement of contaminants from sites that may discharge to the surface. This requires a quantifiable understanding of ground-water flow through the surficial aquifer system and how the system...
Front Range Infrastructure Resources Project: water-resources activities
Stanley G. Robson, Janet S. Heiny
1998, Fact Sheet 113-98
Infrastructure, such as roads, buildings, airports, and dams, is built and maintained by use of large quantities of natural resources such as aggregate (sand and gravel), energy, and water. As urban area expand, local sources of these resource are becoming inaccessible (gravel cannot be mined from under a subdivision, for...
Digital Geologic Map of the Rosalia 1:100,000 Quadrangle, Washington and Idaho: A Digital Database for the 1990 S.Z. Waggoner Map
Pamela D. Derkey, Bruce R. Johnson, Beatrice B. Lackaff, Robert E. Derkey
1998, Open-File Report 98-357
The geologic map of the Rosalia 1:100,000-scale quadrangle was compiled in 1990 by S.Z. Waggoner of the Washington state Division of Geology and Earth Resources. This data was entered into a geographic information system (GIS) as part of a larger effort to create regional digital geology for the Pacific Northwest....
Quaternary geology and liquefaction susceptibility, Napa, California 1:100,000 quadrangle: A digital database
Janet M. Sowers, Jay S. Noller, William R. Lettis
1998, Open-File Report 98-460
Earthquake-induced ground failures such as liquefaction have historically brought loss of life and damage to property and infrastructure. Observations of the effects of historical large-magnitude earthquakes show that the distribution of liquefaction phenomena is not random. Liquefaction is restricted to areas underlain by loose, cohesionless sands and silts...
Characterization and evaluation of channel and hillslope erosion on the Zuni Indian Reservation, New Mexico, 1992-95
A. C. Gellis
1998, Water-Resources Investigations Report 97-4281
Like many areas of the southwestern United States, the Zuni Indian Reservation, New Mexico, has high rates of erosion, ranging from 95 to greater than 1,430 cubic meters per square kilometer per year. Erosion on the Zuni Indian Reservation includes channel erosion (arroyo incision and channel widening) and hillslope (sheetwash)...
Summary of floods in the United States, January 1992 through September 1993
Charles A. Perry, L. J. Combs, editor(s)
1998, Water Supply Paper 2499
This volume contains a summary of the flooding in the upper Mississippi River Basin during the spring and summer of 1993 and 36 articles describing severe, widespread, or unusual flooding in the United States from January 1, 1992, to the end of the 1993 water year, September 30, 1993. Each...
Laboratory method for analysis of small concentrations of methyl tert-butyl rther and other ether gasoline oxygenates in water
Donna L. Rose, Brooke F. Connor, Sonja R. Abney, Jon W. Raese
1998, Fact Sheet 086-98
This Fact Sheet presents data for analysis of nanogram-per-liter concentrations of methyl tert-butyl ether (MTBE) and three other ether gasoline oxygenates, including methyl tert-pentyl ether (TAME), diisopropyl ether (DIPE), and ethyl tert-butyl ether (ETBE), by purge- and-trap capillary-column gas chromatography. Long-term method detection levels (LT-MDLs) for MTBE, TAME, DIPE, and...