Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

184934 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 3446, results 86126 - 86150

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Altitude of the top of the Sparta Sand and Memphis Sand in three areas of Arkansas
Aaron L. Pugh, Paul W. Westerfield, Gerard Gonthier, David T. Poynter
1998, Water-Resources Investigations Report 98-4002
The Sparta Sand and Memphis Sand form the second most productive aquifer in Arkansas. The Sparta Sand and Memphis Sand range in thick- ness from 0 to 900 feet, consisting of fine- to medium-grained sands interbedded with layers of silt, clay, shale, and minor amounts of lignite. Within the three...
Pesticides in storm runoff from agricultural and urban areas in the Tuolumne River basin in the vicinity of Modesto, California
Charles R. Kratzer
1998, Water-Resources Investigations Report 98-4017
The occurrence, concentrations, and loads of dissolved pesticides in storm runoff were compared for two contrasting land uses in the Tuolumne River Basin, California, during two different winter storms: agricultural areas (February 1994) and the Modesto urban area (February 1995). Both storms followed the main application period of pesticides on...
Nutrient loading and selected water-quality and biological characteristics of Dickinson Bayou near Houston, Texas, 1995-97
Jeffery W. East, Edna M. Paul, Stephen D. Porter
1998, Water-Resources Investigations Report 98-4012
Data were collected at 10 stations in the Dickinson Bayou watershed near Houston, Texas, from March 1995 through February 1997 to estimate the concentrations, loads, and yields of selected nutrients that enter the bayou; to characterize the effects on nutrient concentrations of flow conditions, seasonality, and land use; and to...
One-Dimensional Transport with Inflow and Storage (OTIS): A Solute Transport Model for Streams and Rivers
Robert L. Runkel
1998, Water-Resources Investigations Report 98-4018
OTIS is a mathematical simulation model used to characterize the fate and transport of water-borne solutes in streams and rivers. The governing equation underlying the model is the advection-dispersion equation with additional terms to account for transient storage, lateral inflow, first-order decay, and sorption. This equation and the associated equations...
Potentiometric surface of the Ozark Aquifer in northern Arkansas, 1995
Aaron L. Pugh
1998, Water-Resources Investigations Report 98-4000
The Ozark aquifer in northern Arkansas is comprised of dolostones, limestones, sandstones, and shales of Late Cambrian to Middle Devonian age, and ranges in thickness from approximately 1,100 feet to more than 4,000 feet. Hydrologically, the aquifer is complex, characterized by discrete and diffuse flow components with large spatial variations...
Assessment of ground-water vulnerability to atrazine leaching in Kent County, Michigan; review, comparison of results of other studies and verification
D. J. Holtschlag, C. L. Luukkonen
1998, Water-Resources Investigations Report 98-4006
Model assumptions and parameters used in an earlier study of the vulnerability of ground water in Kent County, Michigan, to atrazine contamination were reviewed and compared with other studies. The review indicated that model assumptions are consistent with those used in other models and that the parameters assigned in the...
Water quality in the Red River of the North Basin, Minnesota, North Dakota, and South Dakota, 1992-95
Jeffrey D. Stoner, D. L. Lorenz, R. M. Goldstein, M. E. Brigham, T.K. Cowdery
1998, Circular 1169
This report is intended to summarize major findings that emerged between 1992 and 1995 from the water-quality assessment of the River River of the North basin study unit and to relate these findings to water-quality issues of regional and national concern. The information in primarily intended for those who are...
Water quality in the lower Susquehanna River basin, Pennsylvania and Maryland, 1992-95
Bruce D. Lindsey, Kevin J. Breen, Michael D. Bilger, Robin A. Brightbill
1998, Circular 1168
This report is intended to summarize major findings that emerged between 1992 and 1995 from the water-quality assessment of the lower Susquehanna River basin study unit and to relate these findings to water-quality issues of regional and national concern. The information is primarily intended for those who are involved in...
Mount Rainier: Living with perilous beauty
Kevin M. Scott, Edward W. Wolfe, Carolyn L. Driedger
1998, Fact Sheet 065-97
Mount Rainier is an active volcano reaching more than 2.7 miles (14,410 feet) above sea level. Its majestic edifice looms over expanding suburbs in the valleys that lead to nearby Puget Sound. USGS research over the last several decades indicates that Mount Rainier has been the source of many volcanic...
Water quality in the Albemarle-Pamlico drainage basin, North Carolina and Virginia, 1992-95
Timothy B. Spruill, Douglas A. Harned, Peter M. Ruhl, Jo Leslie Eimers, Gerard McMahon, Kelly E. Smith, David R. Galeone, Michael D. Woodside
1998, Circular 1157
The NAWQA Program is assessing the water-quality conditions of more than 50 of the Nation's largest river basins and aquifers, known as Study Units. Collectively, these Study Units cover about one-half of the United States and include sources of drinking water used by about 70 percent of the U.S. population....
Water quality in the Georgia-Florida coastal plain, Georgia and Florida, 1992-96
Marian P. Berndt, Hilda H. Hatzell, Christy A. Crandall, Michael Turtora, John R. Pittman, Edward T. Oaksford
1998, Circular 1151
This report is intended to summarize major findings that emerged between 1992 and 1995 from the water-quality assessment of the Georgia-Florida Coastal Plain Study Unit and to relate these findings to water-quality issues of regional and national concern. The information is primarily intended for those who are involved in water-resource...
Geohydrology and quality of ground water in unconsolidated aquifers near South Bend, Indiana
K. K. Fowler, L. D. Arihood
1998, Water-Resources Investigations Report 98-4139
IntroductionThe water supply for the City of South Bend, Indiana, and much of surrounding St. Joseph County is provided by 36 municipal and community well fields. Some of these well fields are located near known or potential sources of ground-water contamination that could affect ground-water supplies in the near future....
Water quality in the upper Snake River basin, Idaho and Wyoming, 1992-95
Gregory M. Clark, T.R. Maret, M.G. Rupert, M.A. Maupin, W. H. Low, D.S. Ott
1998, Circular 1160
This report is intended to summarize major findings that emerged between 1992 and 1995 from the water-quality assessment of the Upper Snake River Basin Study Unit and to relate these findings to water-quality issues of regional and national concern. This information is primarily intended for those who are involved in...
Water quality in the Ozark Plateaus, Arkansas, Kansas, Missouri, and Oklahoma, 1992-95
James C. Petersen, James C. Adamski, Richard W. Bell, Jerri V. Davis, Suzanne R. Femmer, David A. Freiwald, Robert L. Joseph
1998, Circular 1158
This report is intended to summarize major findings that emerged between 1992 and 1995 from the water-quality assessment of the Ozark Plateaus Study Unit and to relate these findings to water-quality issues of regional and national concern. The information is primarily intended for those who are involved in water-resource management....
Water quality in the Willamette Basin, Oregon, 1991-95
Dennis A. Wentz, Bernadine A. Bonn, Kurt D. Carpenter, Stephen R. Hinkle, Mary L. Janet, Frank A. Rinella, Mark A. Uhrich, Ian R. Waite, Antonius Laenen, Kenneth E. Bencala
1998, Circular 1161
This report is intended to summarize major findings that emerged between 1991 and 1995 from the water-quality assessment of the Willamette Basin Study Unit and to relate these findings to water-quality issues of regional and national concern. The information is primarily intended for those who are involved in water-resource management....
Water quality in the Western Lake Michigan Drainages, Wisconsin and Michigan, 1992-95
Charles A. Peters, Dale M. Robertson, David A. Saad, Daniel J. Sullivan, Barbara C. Scudder, Faith A. Fitzpatrick, Kevin D. Richards, Jana S. Stewart, Sharon A. Fitzgerald, Bernard N. Lenz
1998, Circular 1156
This report is intended to summarize major findings that emerged between 1992 and 1995 from the water-quality assessment of the Western Lake Michigan Drainages Study Unit and torelate these findings to water-quality issues of regional and national concern. The information in primarily intended for those who are involved in water-resource...