Techniques for estimating magnitude and frequency of peak flows for Pennsylvania streams
Marla H. Stuckey, Lloyd A. Reed
2000, Water-Resources Investigations Report 2000-4189
Regression equations for estimating the magnitude and frequency of floods on ungaged streams in Pennsylvania with drainage areas less that 2,000 square miles were developed on the basis of peak-flow data collected at 313 streamflow-gaging stations. All streamflow-gaging stations used in the development of the equations had 10 or more...
Method of analysis and quality-assurance practices for determination of pesticides in water by solid-phase extraction and capillary-column gas chromatography/mass spectrometry at the U.S. Geological Survey California District Organic Chemistry Laboratory, 1996-99
Kathryn L. Crepeau, Lucian M. Baker, Kathryn Kuivila
2000, Open-File Report 2000-229
A method of analysis and quality-assurance practices were developed to study the fate and transport of pesticides in the San Francisco Bay-Estuary by the U.S. Geological Survey. Water samples were filtered to remove suspended-particulate matter and pumped through C-8 solid-phase extraction cartridges to extract the pesticides. The cartridges were dried...
Probability models for estimation of number and costs of landslides
Robert A. Crovelli
2000, Open-File Report 2000-249
Nitrate source indicators in ground water of the Scimitar Subdivision, Peters Creek area, Anchorage, Alaska
Bronwen Wang, Pat M. Strelakos, Brett Jokela
2000, Water-Resources Investigations Report 2000-4137
A combination of aqueous chemistry, isotopic measurement, and in situ tracers were used to study the possible nitrate sources, the factors contributing to the spatial distribution of nitrate, and possible septic system influence in the ground water in the Scimitar Subdivision, Municipality of Anchorage, Alaska. Two water types were distinguished...
Characterization and simulation of ground-water flow in the Kansas River Valley at Fort Riley, Kansas, 1990-98
Nathan C. Myers
2000, Water-Resources Investigations Report 2000-4096
Hydrologic data and a ground-water flow model were used to characterize ground-water flow in the Kansas River alluvial aquifer at Fort Riley in northeast Kansas. The ground-water flow model was developed as a tool to project ground-water flow and potential contaminant-transport paths in the alluvial aquifer on the basis of...
3-D spherical models of mantle convection with floating continents
V.P. Trubitsyn, V.V. Rykov
2000, Open-File Report 2000-218
Hydrogeologic and geochemical characteristics of the Ogallala and White River aquifers, Cheyenne, Wyoming
K.M. Ogle, L.L. Hallberg
2000, Water-Resources Investigations Report 2000-4188
The Ogallala aquifer and the underlying White River aquifer are important ground-water resources of public and private drinking water in the Cheyenne, Wyoming area. In 1997, as part of a cooperative project between the Cheyenne Board of Public Utilities and the U.S. Geological Survey, a well was installed to develop...
Probability of detecting atrazine/desethyl-atrazine and elevated concentrations of nitrate plus nitrate as nitrogen in ground water in the Idaho part of the western Snake River Plain
Mary M. Donato
2000, Water-Resources Investigations Report 2000-4163
As ground water continues to provide an ever-growing proportion of Idaho?s drinking water, concerns about the quality of that resource are increasing. Pesticides (most commonly, atrazine/desethyl-atrazine, hereafter referred to as atrazine) and nitrite plus nitrate as nitrogen (hereafter referred to as nitrate) have been detected in many aquifers in the...
Computer-model analysis of ground-water flow and simulated effects of contaminant remediation at Naval Weapons Industrial Reserve Plant, Dallas, Texas
Rene A. Barker, Christopher L. Braun
2000, Water-Resources Investigations Report 2000-4197
In June 1993, the Department of the Navy, Southern Division Naval Facilities Engineering Command (SOUTHDIV), began a Resource Conservation and Recovery Act (RCRA) Facility Investigation (RFI) of the Naval Weapons Industrial Reserve Plant (NWIRP) in north-central Texas. The RFI has found trichloroethene, dichloroethene, vinyl chloride, as well as chromium, lead,...
Geologic map and database of the Salem East and Turner 7.5 minute quadrangles, Marion County, Oregon: A digital database
Terry L. Tolan, Marvin H. Beeson, Christopher B. DuRoss
2000, Open-File Report 2000-351
The Salem East and Turner 7.5-minute quadrangles are situated in the center of the Willamette Valley near the western margin of the Columbia River Basalt Group (CRBG) distribution. The terrain within the area is of low to moderate relief, ranging from about 150 to almost 1,100-ft elevation. Mill Creek flows...
Determination of infiltration and percolation rates along a reach of the Santa Fe River near La Bajada, New Mexico
Carole L. Thomas, Amy E. Stewart, Jim E. Constantz
2000, Water-Resources Investigations Report 2000-4141
Two methods, one a surface-water method and the second a ground-water method, were used to determine infiltration and percolation rates along a 2.5-kilometer reach of the Santa Fe River near La Bajada, New Mexico. The surface-water method uses streamflow measurements and their differences along a stream reach, streamflow-loss rates, stream...
Methodology, data collection, and data analysis for determination of water-mixing patterns induced by aerators and mixers
Gary P. Johnson, Nancy J. Hornewer, Dale M. Robertson, Darren T. Olson, Josh Gioja
2000, Water-Resources Investigations Report 2000-4101
The U.S. Geological Survey collected and analyzed data to describe mixing patterns induced by aerators and mixers to aid in the calibration and verification of a three-dimensional hydrodynamic model. During September 1995, three-dimensional water-velocity profiles were collected during the operation of fine-bubble and coarse-bubble aerators in a test tank at...
Estimation and comparison of potential runoff-contributing areas in Kansas using topographic, soil, and land-use information
Kyle E. Juracek
2000, Water-Resources Investigations Report 2000-4177
Digital topographic, soil, and land-use information was used to estimate potential runoff-contributing areas in Kansas. The results were used to compare 91 selected subbasins representing slope, soil, land-use, and runoff variability across the State. Potential runoff-contributing areas were estimated collectively for the processes of infiltration-excess and saturation-excess overland flow using...
Sensitivity of ground water to contamination in Lawrence County, South Dakota
Larry D. Putnam
2000, Water-Resources Investigations Report 2000-4103
Ground-water supplies in Lawrence County, South Dakota, can be contaminated by agricultural, urban, suburban, commercial, and industrial land uses. To address this issue, the U.S. Geological Survey in cooperation with Lawrence County and the City of Spearfish mapped the sensitivity of ground water to contamination in Lawrence County. Sensitivity of ground...
Evaluation of the use of reach transmissivity to quantify leakage beneath Levee 31N, Miami-Dade County, Florida
Mark S. Nemeth, Walter M. Wilcox, Helena M. Solo-Gabriele
2000, Water-Resources Investigations Report 2000-4066
A coupled ground- and surface-water model (MODBRANCH) was developed to estimate ground-water flow beneath Levee 31N in Miami-Dade County, Florida, and to simulate hydrologic conditions in the surrounding area. The study included compilation of data from monitoring stations, measurement of vertical seepage rates in wetlands, and analysis of the hydrogeologic...
Hydrology, water quality, and nutrient loads to Lake Catherine and Channel Lake, near Antioch, Lake County, Illinois
Robert T. Kay, Gary P. Johnson, David L. Schrader
2000, Water-Resources Investigations Report 2000-4088
From April 21, 1998, through April 30, 1999, the U.S. Geological Survey, in cooperation with the Fox Waterway Agency, conducted an investigation designed to characterize the hydrology, water quality, hydrologic budget, sediment budget, and nutrient budget of Lake Catherine and Channel Lake, Lake County, Illinois. These lakes are the northernmost...
Water-quality trend analysis and sampling design for the Souris River, Saskatchewan, North Dakota, and Manitoba
Aldo V. Vecchia
2000, Water-Resources Investigations Report 2000-4019
The Souris River Basin is a 24,600-square-mile basin located in southeast Saskatchewan, north-central North Dakota, and southwest Manitoba. The Souris River Bilateral Water Quality Monitoring Group, formed in 1989 by the governments of Canada and the United States, is responsible for documenting trends in water quality in the Souris River...
Effects of hypothetical management scenarios on simulated water temperatures in the Tualatin River, Oregon
John C. Risley
2000, Water-Resources Investigations Report 2000-4071
In 1994, the U.S. Geological Survey (USGS) and the Unified Sewerage Agency of Washington County, Oregon (USA) began a cooperative study to better understand water-temperature variations in the Tualatin River and to assess mitigative water-management solutions. Continuous water-temperature data were collected at locations along the main stem of the river...
Water-quality assessment of part of the Upper Mississippi River Basin, Minnesota and Wisconsin: Trace elements in streambed sediment and fish livers, 1995-96
Sharon E. Kroening, James D. Fallon, Kathy Lee
2000, Water-Resources Investigations Report 2000-4031
Trace elements were analyzed in streambed sediment and fish livers in part of the Upper Mississippi River Basin as part of the U.S. Geological Survey’s National Water-Quality Assessment Program. The purpose of this report was to describe the occurrence and distribution of trace elements, describe the relations of concentrations measured...
Site Selection for a Deep Monitor Well, Kualapuu, Molokai, Hawaii
Delwyn S. Oki
2000, Water-Resources Investigations Report 99-4291
Management of the ground-water resources near Kualapuu on the island of Molokai, Hawaii, is hindered by the uncertainty in the vertical salinity structure in the aquifer. In the State of Hawaii, vertical profiles of ground-water salinity are commonly obtained from deep monitor wells, and these profiles are used to estimate...
Suspended-sediment budget, flow distribution, and lake circulation for the Fox Chain of Lakes in Lake and McHenry Counties, Illinois, 1997-99
David L. Schrader, Robert R. Holmes Jr.
2000, Water-Resources Investigations Report 2000-4115
The Fox Chain of Lakes is a glacial lake system in McHenry and Lake Counties in northern Illinois and southern Wisconsin. Sedimentation and nutrient overloading have occurred in the lake system since the first dam was built (1907) in McHenry to raise water levels in the lake system. Using data...
Estimation of peak streamflows for unregulated rural streams in Kansas
Patrick P. Rasmussen, Charles A. Perry
2000, Water-Resources Investigations Report 2000-4079
Peak streamflows were estimated at selected recurrence intervals (frequencies) ranging from 2 to 200 years using log-Pearson Type III distributions for 253 streamflow-gaging stations in Kansas. The annual peak-streamflow data, through the 1997 water year, were from streamflow-gaging stations with unregulated flow in mostly rural basins. A weighted least-squares regression...
Water resources of the Blackstone River basin, Massachusetts
John A. Izbicki
2000, Water-Resources Investigations Report 93-4167
By 2020, demand for water in the Blackstone River Basin is expected to be 52 million gallons per day, one-third greater than the demand of 39 million gallons per day in 1980. Most of this increase is expected to be supplied by increased withdrawals of ground water from stratified-drift aquifers...
Determination of the effects of fine-grained sediment and other limiting variables on trout habitat for selected streams in Wisconsin
Barbara C. Scudder, J.W. Selbig, R.J. Waschbusch
2000, Open-File Report 2000-435
Two Habitat Suitability Index (HSI) models, developed by the U.S. Fish and Wildlife Service, were used to evaluate the effects of fine-grained (less than 2 millimeters) sediment on brook trout (Salvelinusfontinalis, Mitchill) and brown trout (Salmo trutta, Linnaeus) in 11 streams in west-central and southwestern Wisconsin. Our results indicated that...
Effects of land use on recharge potential of surficial and shallow bedrock aquifers in the upper Illinois River basin
Terri Arnold, Michael J. Friedel
2000, Water-Resources Investigations Report 2000-4027
The upper Illinois River Basin (UIRB) is the 10,949-square-mile drainage area upstream from Ottawa, Illinois on the Illinois River and is one of the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) program study units. To assist in the interpretation of groundwater data that will be collected during the course of...
