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

16437 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 408, results 10176 - 10200

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Occurrence of selected trace elements and organic compounds and their relation to land use in the Willamette River basin, Oregon, 1992-94
Chauncey W. Anderson, Frank A. Rinella, Stewart A. Rounds
1996, Water-Resources Investigations Report 96-4234
Between 1992 and 1994, the U.S.Geological Survey conducted a study of trace elements and organic compounds in the Willamette River Basin, Oregon, as part of the Willamette River Basin Water Quality Study. Low-level analyses were performed for trace elements, volatile organic compounds, organochlorine compounds, and pesticides. Overall, 94 water samples...
Hydrology of the unconfined aquifer system, Mullica River basin, New Jersey, 1991-92
Melissa L. Johnson, Martha K. Watt
1996, Water-Resources Investigations Report 94-4234
The Kirkwood-Cohansey aquifer system, an unconfined aquifer system, is a major source of water in the Mullica River Basin in southern New Jersey. A water-level map was constructed from water levels measured in 197 wells and at 156 stream sites in the basin. Water levels in six observation wells were...
Estimation of flood-frequency characteristics of small urban streams in North Carolina
J.C. Robbins, B.F. Pope
1996, Water-Resources Investigations Report 96-4084
A statewide study was conducted to develop methods for estimating the magnitude and frequency of floods of small urban streams in North Carolina. This type of information is critical in the design of bridges, culverts and water-control structures, establishment of flood-insurance rates and flood-plain regulation, and for other uses by...
Hydrogeologic setting and preliminary estimates of hydrologic components for Bull Run Lake and the Bull Run Lake drainage basin, Multnomah and Clackamas counties, Oregon
Daniel T. Snyder, Dorie L. Brownell
1996, Water-Resources Investigations Report 96-4064
The hydrogeologic setting was described and preliminary estimates of hydrologic components prepared for the Bull Run Lake and for the Bull Run Lake drainage basin, in the Cascade Range of northwestern Oregon. The 0.73-square-mile lake and the 3.44-square-mile drainage basin lie within the Bull Run Watershed, the principal water supply...
Hydrogeology and steady-state simulation of ground-water flow in the San Juan Basin, New Mexico, Colorado, Arizona, and Utah
J. M. Kernodle
1996, Water-Resources Investigations Report 95-4187
As part of a multidisciplinary regional aquifer-system analysis, a three-dimensional steady-state ground-water-flow model was constructed for the San Juan Basin in parts of New Mexico, Colorado, Arizona, and Utah. The model simulated ground- water flow in 12 hydrostratigraphic units representing all of the major sources of ground water from aquifers of...
Method for the determination of dissolved chloride, nitrate, and sulfate in natural water using ion chromatography
Terry I. Brinton, Ronald C. Antweiler, Howard E. Taylor
1996, Open-File Report 95-426A
Ion chromatography was used for the determination of dissolved chloride, nitrate and sulfate in natural water where concentrations ranged from a detection limit of 0.02 milligrams per liter to 80 milligrams per liter for chloride, to 18 milligrams per liter for nitrate, and to 280 milligrams per liter for sulfate....
Using geochemical and statistical tools to identify irrigated areas that might contain high selenium concentrations in surface water
David L. Naftz
1996, Fact Sheet 077-96
Irrigated agriculture has a long history in the Western United States, beginning with Native American Indians. After passage of the Reclamation Act of 1902, the United States Government began building and subsidizing irrigation projects to foster settlement and development of the arid and semi-arid areas of the Western United States...
Hydrology and water quality of Park Lake, south-central Wisconsin
P.A. Kammerer
1996, Fact Sheet 197-96
Park Lake extends to the northeast from the village of Pardeeville in Columbia County (fig. 1). Local residents perceive water-quality problems in the lake that include excessive algae and aquatic plant growth. Algae and plant growth in a lake are controlled, in part, by the availability of phosphorus in the...
Reconnaissance of hydrologic monitoring sites and preliminary monitoring plan for the Vale, Oregon, geothermal area
Marshall W. Gannett, Rodney R. Caldwell
1996, Open-File Report 95-384
The Bonneville Power Administration is working with private industry to develop a geothermal demonstration project in the Known Geothermal Resources Area (KGRA) near Vale, Oregon. Hydrologic monitoring in the area is planned in order to evaluate any impacts from the proposed development. The hydrology in and around the Vale KGRA...
Review and evaluation of a model for simulating the natural hydrology of South Florida
Jerad D. Bales, Janice M. Fulford, Eric D. Swain
1996, Fact Sheet 180-96
The South Florida Ecosystem Program is an intergovernmental effort to re-establish and maintain the ecosystem of South Florida. One element of the restoration effort is the development of a firm scientific basis for making management decisions. The U.S. Geologcal Survey (USGS) is one of the agencies that provides this needed...
Simulation of storm peaks and storm volumes for selected subbasins in the West Fork Trinity River Basin, Texas, water years 1993-94
T. H. Raines
1996, Water-Resources Investigations Report 96-4110
A model parameter set for use with the Hydrologic Simulation Program FORTRAN watershed model was developed to simulate storm peaks and storm volumes for the 28 subbasins of the West Fork Trinity River Basin upstream from Lake Worth, northwest of Fort Worth, Texas, from the calibration and testing of 5...
Potential effects of climate change on streamflow, eastern and western slopes of the Sierra Nevada, California and Nevada
A.E. Jeton, M. D. Dettinger, J. LaRue Smith
1996, Water-Resources Investigations Report 95-4260
Precipitation-runoff models of the East Fork Carson and North Fork American Rivers were developed and calibrated for use in evaluating the sensitivity of streamflow in the north-central Sierra Nevada to climate change. The East Fork Carson River drains part of the rain-shadowed, eastern slope of the Sierra Nevada and is...
Analysis of the peak-flow gaging network in North Dakota
Tara Williams-Sether
1996, Water-Resources Investigations Report 96-4178
A network analysis technique using generalized least-squares regression was used to evaluate the current (1993) peak-flow gaging network that provides regional peak-flow information for North Dakota. The analysis was conducted to evaluate the current (1993) network and to determine if reactivating discontinued gaging stations and adding new gaging stations on...
Hydrology of central Florida lakes, a primer
D. M. Schiffer, Rafael Medina
1996, Open-File Report 96-412
Lakes are among the most valued natural resources of central Florida. The landscape of central Florida is riddled with lakes—when viewed from the air it almost seems there is more water than land. Florida has more naturally formed lakes than other southeastern States, where many lakes are manmade, created by...
Hydrogeology of the area near the J4 test cell, Arnold Air Force Base, Tennessee
C.J. Haugh
1996, Water-Resources Investigations Report 96-4182
The U.S. Air Force operates a major aerospace systems testing facility at Arnold Engineering Development Center (AEDC) in Coffee County, Tennessee. Dewatering operations at one of the test facilities, the J4 test cell, has affected the local ground-water hydrology. The J4 test cell is approximately 100 feet in diameter, extends...
Spatial and temporal distribution of specific conductance, boron, and phosphorus in a sewage-contaminated aquifer near Ashumet Pond, Cape Cod, Massachusetts
K.W. Bussey, D. A. Walter
1996, Open-File Report 96-472
Spatial and temporal distributions of specific conductance, boron, and phosphorus were determined in a sewage-contaminated sand and gravel aquifer near Ashumet Pond, Cape Cod, Massachusetts. The source of contamination is secondarily treated sewage that has been discharged onto rapid- infiltration sand beds at the Massachusetts Military Reservation since 1936. Contaminated...
Concentrations of selected herbicides, herbicide metabolites, and nutrients in outflow from selected midwestern reservoirs, April 1992 through September 1993
E.A. Scribner, D. A. Goolsby, E.M. Thurman, M. T. Meyer, W.A. Battaglin
1996, Open-File Report 96-393
This data set consists of digital aquifer boundaries for the High Plains aquifer in the central United States. The High Plains aquifer extends from south of 32 degrees to almost 45 degrees north latitude and from 96 degrees 30 minutes to almost 104 degrees west longitude. The area covers 174,000...
Methodology used to produce an encoded 1:100,000-scale digital hydrographic data layer for the Pacific Northwest
B.J. Fisher
1996, Water-Resources Investigations Report 94-4043
The U.S. Geological Survey (USGS) has produced a River Reach File data layer for the Pacific Northwest for use in water-resource management applications. The Pacific Northwest (PNW) River Reach Files, a geo-referenced river reach data layer at 1:100,000-scale, are encoded with the U.S. Environmental Protection Agency"s (EPA) reach numbers. The...