Ground-water resources of the Tallapoosa River basin in Georgia and Alabama - Subarea 5 of the Apalachicola-Chattahoochee-Flint and Alabama-Coosa-Tallapoosa river basins
Celeste A. Journey, J. Brian Atkins
1997, Open-File Report 96-433
Drought conditions in the 1980's focused attention on the multiple uses of the surface- and ground-water resources in the Apalachicola-Chattahoochee-Flint (ACT) and Alabama-Coosa-Tallapoosa (ACT) River basins in Georgia, Alabama, and Florida. State and Federal agencies also have proposed projects that would require additional water resources and revise operating practices within...
Evaluation of agricultural best-management practices in the Conestoga River headwaters, Pennsylvania: A summary report, 1982-90
Patricia L. Lietman
1997, Water Supply Paper 2493
Pipe-outlet terracing was effective in reducing sediment losses from a field site, but total nitrogen and phosphorus losses with runoff were not significantly different before and after terracing. Median concentrations of dissolved nitrate in several ground-water sampling locations increased after terrace installation. Dissolved nitrate concentrations in ground water decreased significantly...
Generalized skew coefficients for flood-frequency analysis in Minnesota
D. L. Lorenz
1997, Water-Resources Investigations Report 97-4089
This report presents an evaluation of generalized skew coefficients used in flood-frequency analysis. Station skew coefficients were computed for 267 long-term stream-gaging stations in Minnesota and the surrounding states of Iowa, North and South Dakota, Wisconsin, and the provinces of Manitoba and Ontario, Canada. Generalized skew coefficients were computed from...
An optimized network for phosphorus load monitoring for Lake Okeechobee, Florida
W. S. Gain
1997, Water-Resources Investigations Report 97-4011
Phosphorus load data were evaluated for Lake Okeechobee, Florida, for water years 1982 through 1991. Standard errors for load estimates were computed from available phosphorus concentration and daily discharge data. Components of error were associated with uncertainty in concentration and discharge data and were calculated for existing conditions and for...
Pesticides in surface and ground water of the San Joaquin-Tulare basins, California: Analysis of available data, 1966 Through 1992
Joseph L. Domagalski
1997, Water Supply Paper 2468
Available pesticide data (1966-92) for surface and ground water were analyzed for the San Joaquin-Tulare Basins, California, one of 60 large hydrologic systems being studied as part of the National Water-Quality Assessment Program of the U.S. Geological Survey. Most of the pesticide data were for the San Joaquin Valley, one...
Digital geology and topography of the Charleston quadrangle, Charleston and Berkeley counties, South Carolina
R.E. Weems, E. M. Lemon Jr., P. G. Chirico
1997, Open-File Report 97-531
No abstract available....
Geomorphology of the lower Copper River, Alaska
Timothy P. Brabets
1997, Professional Paper 1581
The Copper River, located in southcentral Alaska, drains an area of more than 24,000 square miles. About 30 miles above its mouth, this large river enters Miles Lake, a proglacial lake formed by the retreat of Miles Glacier. Downstream from the outlet of Miles Lake, the Copper River flows past...
The Cataclysmic 1991 Eruption of Mount Pinatubo, Philippines
Christopher G. Newhall, James W. Hendley II, Peter H. Stauffer
1997, Fact Sheet 113-97
The second-largest volcanic eruption of this century, and by far the largest eruption to affect a densely populated area, occurred at Mount Pinatubo in the Philippines on June 15, 1991. The eruption produced high-speed avalanches of hot ash and gas, giant mudflows, and a cloud of volcanic ash hundreds of...
Benefits of volcano monitoring far outweigh costs - the case of Mount Pinatubo
Chris G. Newhall, James W. Hendley II, Peter H. Stauffer
1997, Fact Sheet 115-97
The climactic June 1991 eruption of Mount Pinatubo, Philippines, was the largest volcanic eruption in this century to affect a heavily populated area. Because it was forecast by scientists from the Philippine Institute of Volcanology and Seismology and the U.S. Geological Survey, civil and military leaders were able to order...
Overview of the U.S. Geological Survey Chesapeake Bay Ecosystem Program
Scott Phillips, Bill Caughron
1997, Fact Sheet 124-97
Lahars of Mount Pinatubo, Philippines
Christopher G. Newhall, Peter H. Stauffer, James W. Hendley II
1997, Fact Sheet 114-97
On June 15, 1991, Mount Pinatubo in the Philippines exploded in the second largest volcanic eruption on Earth this century. This eruption deposited more than 1 cubic mile (5 cubic kilometers) of volcanic ash and rock fragments on the volcano's slopes. Within hours, heavy rains began to wash this material...
Ground-water use of the principal aquifers in Puerto Rico during calendar year 1990
Wanda L. Molina-Rivera
1997, Fact Sheet 188-96
Forum on Geologic mapping applications in the Washington-Baltimore urban area; proceedings; Reston, Virginia, April 23, 1997
J. Wright Horton Jr., Emery T. Cleaves
1997, Circular 1148
The Forum on Geologic mapping applications in the Washington-Baltimore urban area was convened on April 23, 1997, at Reston, Virginia. The forum was cosponsored by the U.S. Geological Survey and the Maryland Geological Survey, with assistance from the Virginia Division of Mineral Resources. Spatial earth science information in the Washington-Baltimore...
Altitude and configuration of the potentiometric surface in Warwick Township, Bucks County, Pennsylvania, September 1994 through May 1995
C.J. Rowland
1997, Open-File Report 97-554
No abstract available...
Hydrogeology and ground-water quality of confined aquifers in buried valleys in Rock County, Minnesota and Minnehaha County, South Dakota
R. J. Lindgren
1997, Water-Resources Investigations Report 97-4029
Confined glacial and bedrock aquifers are present within Quaternary and Cretaceous deposits that fill buried valleys incised in the Sioux Quartzite surface in Rock County, in southwestern Minnesota and Minnehaha County, South Dakota. This report describes the areal extent, thickness, water-bearing characteristics, water-supply potential, and water-quality characteristics of confined aquifers...
Hydraulic properties and ground-water flow in the St Peter-Prairie du Chien-Jordan aquifer, Rochester area, southeastern Minnesota
R. J. Lindgren
1997, Water-Resources Investigations Report 97-4015
The hydraulic properties were updated and their effects on ground-water flow in the St. Peter-Prairie du Chien-Jordan aquifer in the Rochester area in southeastern Minnesota were evaluated, using new information compiled since a study by Delin (1990). Since 1988, new information on the hydrogeology of the ground-water system in the...
Ranking of the world's oil and gas provinces by known petroleum volumes
T. R. Klett, Thomas S. Ahlbrandt, J. W. Schmoker, G.L. Dolton
1997, Open-File Report 97-463
Surface-water-quality assessment of the upper Illinois River Basin in Illinois, Indiana, and Wisconsin– Results of investigations through April 1992
Arthur R. Schmidt, Stephen F. Blanchard
1997, Water-Resources Investigations Report 96-4223
A water-quality assessment of the upper Illinois River Basin (10,949 square miles) was conducted during water years 1987-91. This assessment involved interpretation of available data; 4 years of intensive data collection, including monthly sample collection at eight fixed-monitoring stations in the basin; and synoptic studies of selected water-quality constituents at...
Low-flow characteristics and profiles for the Deep River in the Cape Fear River basin, North Carolina
J. Curtis Weaver
1997, Water-Resources Investigations Report 97-4128
An understanding of the magnitude and frequency of low-flow discharges is an important part of protecting surface-water resources and planning for municipal and industrial economic expansion. Low-flow characteristics are summarized for 7 continuous-record gaging stations and 23 partial-record measuring sites in the Deep River Basin in North Carolina. Records of...
Modifications to a one-dimensional model of unsteady flow in the Colorado River through the Grand Canyon, Arizona
Stephen Mark Wiele, Eleanor R. Griffin
1997, Water-Resources Investigations Report 97-4046
Reconnaissance geologic map of the Petersburg B-1 quadrangle, Southeastern Alaska
David A. Brew
1997, Open-File Report 97-156-C
No abstract available....
Reconnaissance geologic map of the Petersburg B-5 quadrangle, southeastern Alaska
David A. Brew
1997, Open-File Report 97-156-G
No abstract available....
Water Use in Wisconsin, 1995
B.R. Ellefson, C.H. Fan, J.L. Ripley
1997, Open-File Report 97-356
As part of the National Water-Use Information Program, the U.S. Geological Survey (USGS) stores water-use data in standardized format for different categories of water use. The data base (Site Specific Water Use Data System) is updated annually or as more current water-use information becomes available. Information about amounts of water...
Reconnaissance geologic map of the Petersburg B-3 quadrangle, southeastern Alaska
David A. Brew
1997, Open-File Report 97-156-E
No abstract available....
Physical characteristics of stream subbasins in the lower Minnesota River basin, south-central Minnesota
C. A. Sanocki
1997, Open-File Report 97-205
Data that describe the physical characteristics of stream subbasins upstream from selected sites on streams in the Lower Minnesota River Basin, located in south-central Minnesota are presented in this report. The physical characteristics are the drainage area of the subbasin, the percentage area of the subbasin covered only by lakes,...
