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 3440, results 85976 - 86000

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Hydrogeology, water quality, water budgets, and simulated responses to hydrologic changes in Santa Rosa and San Simeon Creek ground-water basins, San Luis Obispo County, California
Eugene B. Yates, Kathryn M. Van Konyenburg
1998, Water-Resources Investigations Report 98-4061
Santa Rosa and San Simeon Creeks are underlain by thin, narrow ground-water basins that supply nearly all water used for local agricultural and municipal purposes. The creeks discharge to the Pacific Ocean near the northwestern corner of San Luis Obispo County, California. The basins contain heterogeneous, unconsolidated alluvial deposits and...
Availability of Ground-Water Data for California, Water Year 1997
Julia H. Huff
1998, Fact Sheet 045-98
The Water Resources Division of the U.S. Geological Survey, in cooperation with Federal, State, and local water agencies, obtains a large amount of data pertaining to the ground-water resources of California each water year. These data constitute a valuable data base for developing an improved understanding of the water resources...
Evaluation of a method for comparing phosphorus loads from barnyards and croplands in Otter Creek Watershed, Wisconsin
Judy A. Wierl, Elise M. P. Giddings, Roger T. Bannerman
1998, Fact Sheet 168-98
Control of phosphorus from rural nonpoint sources is a major focus of current efforts to improve and protect water resources in Wisconsin and is recommended in almost every priority watershed plan prepared for the State's Nonpoint Source (NFS) Program. Barnyards and crop- lands usually are identified as the primary rural...
Spatial variation in saturated hydraulic conductivity of sediments at a crude-oil spill site near Bemidji, Minnesota
Michael L. Strobel, G. N. Delin, Carissa J. Munson
1998, Water-Resources Investigations Report 98-4053
Saturated hydraulic conductivity of aquifer sediments at a crude-oil spill research site near Bemidji, Minnesota were examined using pneumatically-induced head-difference tests and packer/vacuum system tests. Results from slug tests on 58 wells show that hydraulic conductivity varies both horizontally and vertically in the range from about 10-7 to 10-4 meters...
Detecting debris flows using ground vibrations
Richard G. LaHusen
1998, Fact Sheet 236-96
Debris flows are rapidly flowing mixtures of rock debris, mud, and water that originate on steep slopes. During and following volcanic eruptions, debris flows are among the most destructive and persistent hazards. Debris flows threaten lives and property not only on volcanoes but far downstream in valleys that drain volcanoes...
Evaluation of the surface-water sampling design in the Western Lake Michigan Drainages in relation to environmental factors affecting water quality at base flow
Dale M. Robertson
1998, Water-Resources Investigations Report 98-4072
Eight stream sites (Fixed Sites) were chosen to describe the variability in the water quality of the Western Lake Michigan Drainages (WMIC) Study Unit of the National Water-Quality Assessment program. These sites were chosen in areas (Relatively Homogeneous Units) dominated by unique combinations of the environmental factors thought to be...
Measured flow and tracer-dye data showing the anthropogenic effects on the hydrodynamics of south Sacramento-San Joaquin Delta, California, spring 1996 and 1997
Richard N. Oltmann
1998, Open-File Report 98-285
Tidal flows were measured using acoustic Doppler current profilers and ultrasonic velocity meters during spring 1996 and 1997 in south Sacramento-San Joaquin Delta, California, when (1) a temporary barrier was installed at the head of Old River to prevent the entrance of migrating San Joaquin River salmon smolts, (2) the...
Identification of water-bearing zones by the use of geophysical logs and borehole television surveys, collected February to September 1997, at the Former Naval Air Warfare Center, Warminster, Bucks County, Pennsylvania
Randall W. Conger
1998, Open-File Report 98-86
Between February 1997 and September 1997, 10 monitor wells were drilled near the site of the former Naval Air Warfare Center, Warminster, Bucks County, Pa., to monitor water levels and sample ground-water contaminants in the shallow, intermediate, and deep water-bearing zones. The sampling will determine the horizontal and vertical distribution...
Radon-222 in the ground water of Chester County, Pennsylvania
Lisa A. Senior
1998, Water-Resources Investigations Report 98-4169
Radon-222 concentrations in ground water in 31 geologic units in Chester County, Pa., were measured in 665 samples collected from 534 wells from 1986 to 1997. Chester County is underlain by schists, gneisses, quartzites, carbonates, sandstones, shales, and other rocks of the Piedmont Physiographic Province. On average, radon concentration was...
Revised Methods for Characterizing Stream Habitat in the National Water-Quality Assessment Program
Faith A. Fitzpatrick, Ian R. Waite, Patricia J. D’Arconte, Michael R. Meador, Molly A. Maupin, Martin E. Gurtz
1998, Water-Resources Investigations Report 98-4052
Stream habitat is characterized in the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program as part of an integrated physical, chemical, and biological assessment of the Nation's water quality. The goal of stream habitat characterization is to relate habitat to other physical, chemical, and biological factors that describe water-quality conditions....
Base (100-year) flood elevations for selected sites in Marion County, Missouri
Rodney E. Southard, Gary L. Wilson
1998, Water-Resources Investigations Report 98-4211
The primary requirement for community participation in the National Flood Insurance Program is the adoption and enforcement of floodplain management requirements that minimize the potential for flood damages to new construction and avoid aggravating existing flooding conditions. This report provides base flood elevations (BFE) for a 100-year recurrence flood for...
Detailed study of selenium and selected constituents in water, bottom sediment, soil, and biota associated with irrigation drainage in the San Juan River area, New Mexico, 1991-95
Carole L. Thomas, R.M. Wilson, J. D. Lusk, R. S. Bristol, A.R. Shineman
1998, Water-Resources Investigations Report 98-4213
In response to increasing concern about the quality of irrigation drainage and its potential effects on fish, wildlife, and human health, the U.S. Department of the Interior began the National Irrigation Water Quality Program (NIWQP) to investigate these concerns at irrigation projects sponsored by the Department. The San Juan River...
Water-quality conditions of the lower Boise River, Ada and Canyon Counties, Idaho, May 1994 through February 1997
William H. Mullins
1998, Water-Resources Investigations Report 98-4111
Agricultural land and water use, wastewater treatment facility discharges, land development, road construction, urban runoff, confined-animal feeding operations, reservoir operations, and river channelization affect the water quality and biotic integrity of the lower Boise River between Lucky Peak Dam and the river's mouth at Parma, Idaho. During May 1994 through...
A survey of ground-water quality in the Toppenish Creek basin, Yakama Indian Reservation, Washington, 1989-91
S. S. Sumioka
1998, Water-Resources Investigations Report 97-4194
Ground-water quality in the Toppenish Creek Basin, near Yakima, Washington, is generally good with respect to U.S. Environmental Protection Agency drinking water standards. Of 487 wells sampled during one phase of the study, only 2 produced water with nitrite-plus-nitrate concentrations greater than the U.S. Environmental Protection Agency standard of 10...