Effects of historical land-cover changes on flooding and sedimentation, North Fish Creek, Wisconsin
Faith A. Fitzpatrick, James C. Knox, Heather E. Whitman
1999, Water-Resources Investigations Report 99-4083
North Fish Creek, a Wisconsin tributary to Lake Superior, is an important recreational fishery that is potentially limited by the loss of aquatic habitat caused by accelerated flooding and sedimentation. A study of the historical flooding and sedimentation characteristics of North Fish Creek was done to determine how North Fish...
Pesticides and their metabolites in wells of Suffolk County, New York, 1998
Patrick J. Phillips, D. A. Eckhardt, S.A. Terracciano, Larry Rosenmann
1999, Water-Resources Investigations Report 99-4095
Five insecticide residues and 20 herbicide residues were detected in water samples collected from 50 shallow wells screened in the surficial sand and gravel aquifer in Suffolk County, Long Island in areas with known or suspected residues. Laboratory analytical methods with extremely low detection limits - from 0.001 to 0.2...
Ground-water quality and susceptibility of ground water to effects from domestic wastewater disposal in eastern Bernalillo County, central New Mexico, 1990-91
Paul J. Blanchard, Georgianna E. Kues
1999, Water-Resources Investigations Report 99-4096
Eastern Bernalillo County is a historically rural, mountainous area east of Albuquerque, New Mexico. Historically, the primary economic activity consisted of subsistence farming and ranching and support of these activities from small communities. During the last 40 to 50 years, however, the area increasingly has become the site of residential...
Channel-pattern adjustments and geomorphic characteristics of Elkhead Creek, Colorado, 1937-97
John G. Elliott, Stevan Gyetvai
1999, Water-Resources Investigations Report 99-4098
Onsite channel surveys and sediment measurements made in 1997, aerial photographs taken from 1937 through 1993, and streamflowgaging- station record from 1954 to 1996 were used to determine the probable cause of accelerated streambed and streambank erosion in the lower reaches of Elkhead Creek, a perennial, meandering tributary of the...
Ground-water quality in the Sierra Vista subbasin, Arizona, 1996-97
Alissa L. Coes, Dorinda J. Gellenbeck, Douglas Clark Towne
1999, Water-Resources Investigations Report 99-4056
Quality-assurance results for routine water analyses in US Geological Survey laboratories, water year 1997
Amy S. Ludtke, Mark T. Woodworth, Philip S. Marsh
1999, Water-Resources Investigations Report 99-4057
A tracer test to estimate hydraulic conductivities and dispersivities of sediments in the shallow aquifer at the East Gate Disposal Yard, Fort Lewis, Washington
Edmund A. Prych
1999, Water-Resources Investigations Report 99-4244
Streamflow gains and losses in the lower Boise River basin, Idaho, 1996-97
Charles Berenbrock
1999, Water-Resources Investigations Report 99-4105
Information on streamflow gains and losses in the lower Boise River Basin is needed by the Idaho Department of Water Resources to determine recharge to and discharge from the ground- water system. A method was developed to select canal and creek reaches such that a minimum of two reaches were...
Estimating Concentrations of Road-Salt Constituents in Highway-Runoff from Measurements of Specific Conductance
Gregory E. Granato, Kirk P. Smith
1999, Water-Resources Investigations Report 99-4077
Discrete or composite samples of highway runoff may not adequately represent in-storm water-quality fluctuations because continuous records of water stage, specific conductance, pH, and temperature of the runoff indicate that these properties fluctuate substantially during a storm. Continuous records of water-quality properties can be used to maximize the information obtained...
Hydrogeologic framework and sampling design for an assessment of agricultural pesticides in ground water in Pennsylvania
Bruce D. Lindsey, Tammy M. Bickford
1999, Water-Resources Investigations Report 99-4076
State agencies responsible for regulating pesticides are required by the U.S. Environmental Protection Agency to develop state management plans for specific pesticides. A key part of these management plans includes assessing the potential for contamination of ground water by pesticides throughout the state. As an example of how a statewide...
Spatial distribution of chemical constituents in the Kuskokwim River, Alaska
Bronwen Wang
1999, Water-Resources Investigations Report 99-4177
The effects of lithologic changes on the water quality of the Kuskokwim River, Alaska, were evaluated by the U.S. Geological Survey in June 1997. Water, suspended sediments, and bed sediments were sampled from the Kusko-kwim River and from three tributaries, the Holitna River, Red Devil Creek, and Crooked Creek. Dissolved...
Selected elements and organic chemicals in bed sediment and fish tissue of the Tualatin River basin, Oregon, 1992-96
Bernadine A. Bonn
1999, Water-Resources Investigations Report 99-4107
A variety of elements and organic compounds have entered the environment as a result of human activities. Such substances find their way to aquatic sediments from direct discharges to waterways, atmospheric emissions, and runoff. Some of these chemicals are known to harm fish or wildlife, either by direct toxicity, by...
Distribution and transport of total mercury and methylmercury in mercury-contaminated sediments in reservoirs and wetlands of the Sudbury River, east-central Massachusetts
John A. Colman, Marcus C. Waldron, Robert F. Breault, Robert M. Lent
1999, Water-Resources Investigations Report 99-4060
Total mercury and methylmercury were measured in 4 reservoir cores and 12 wetland cores from Sudbury River. The distribution of total mercury and methylmercury in these cores was evaluated to determine the potential for total mercury and methylmercury transport from reservoir and wetlands sediments to the water column. Concentrations of...
Ground-water resources in Kaloko-Honokohau National Historical Park, Island of Hawaii, and numerical simulation of the effects of ground-water withdrawals
Delwyn S. Oki, Gordon W. Tribble, William R. Souza, Edward L. Bolke
1999, Water-Resources Investigations Report 99-4070
Within the Kaloko-Honokohau National Historical Park, which was established in 1978, the ground-water flow system is composed of brackish water overlying saltwater. Ground-water levels measured in the Park range from about 1 to 2 feet above mean sea level, and fluctuate daily by about 0.5 to 1.5 feet in response...
Hydrogeologic framework and ground-water flow in the Fall Zone of Virginia
Randolph E. McFarland
1999, Water-Resources Investigations Report 99-4093
No abstract available....
Estimation of potential runoff-contributing areas in Kansas using topographic and soil information
Kyle E. Juracek
1999, Water-Resources Investigations Report 99-4242
Digital topographic and soil information was used to estimate potential runoff-contributing areas throughout Kansas. The results then were used to compare 91 selected subbasins representing soil, slope, and runoff variability. Potential runoff-contributing areas were estimated collectively for the processes of infiltration-excess and saturation-excess overland flow using a set of environmental...
Summary of hydrogeologic and ground-water-quality data and hydrogeologic framework at selected well sites, Adams County, Pennsylvania
Dennis J. Low, Diana L. Dugas
1999, Water-Resources Investigations Report 99-4108
Rapid population growth in Adams County has increased the demand for ground water and led Adams County planning officials to undertake an effort to evaluate the capabilities of existing community water systems to meet future, projected growth and to begin wellhead-protection programs for public-supply wells. As part of this effort,...
Methods and results of dioxin related studies on the Leaf and Pascagoula Rivers, Mississippi, 1989-97
B. G. Justus, H. G. Folmar, P. B. Bass
1999, Water-Resources Investigations Report 99-4102
No abstract available....
Water-quality assessment of south-central Texas — Descriptions and comparisons of nutrients, pesticides, and volatile organic compounds at three intensive fixed sites, 1996-98
Patricia B. Ging
1999, Water-Resources Investigations Report 99-4155
Water-quality samples were collected during April 1996-April 1998 at three intensive fixed sites in the San Antonio region of the South-Central Texas study unit as part of the U.S. Geological Survey National Water-Quality Assessment Program. The sampling strategy for the intensive fixed-site assessment is centered on obtaining information about the...
Sedimentation survey of Lago Patillas, Puerto Rico, April 1997
Luis R. Soler-Lopez, Richard M. T. Webb, Francisco Perez-Blair
1999, Water-Resources Investigations Report 99-4030
No abstract available....
Nutrient and sediment concentrations, trends, and loads from five subwatersheds in the Patuxent River Basin, Maryland, 1986-96
Joy S. Lizarraga
1999, Water-Resources Investigations Report 98-4221
Water-resources-related information for the Oneida Reservation and vicinity, Wisconsin
David A. Saad, Morgan A. Schmidt
1999, Water-Resources Investigations Report 98-4266
Water-resources information has been compiled from 82 studies in which data were collected from the Oneida Reservation and vicinity. Forty-seven studies addressed surface-water issues, 33 studies addressed ground-water issues, and 23 studies addressed aquatic-biology issues. Some multidisciplinary studies are included in more than one category. Most of the surface-water studies summarized...
Conceptual Model and Numerical Simulation of the Ground-Water-Flow System in the Unconsolidated Sediments of Thurston County, Washington
B. W. Drost, D.M. Ely, W. E. Lum II
1999, Water-Resources Investigations Report 99-4165
The demand for water in Thurston County has increased steadily in recent years because of a rapid growth in population. Surface-water resources in the county have been fully appropriated for many years and Thurston County now relies entirely on ground water for new supplies of water. Thurston County is underlain...
Site-specific estimation of peak-streamflow frequency using generalized least-squares regression for natural basins in Texas
William H. Asquith, R.M. Slade Jr.
1999, Water-Resources Investigations Report 99-4172
The U.S. Geological Survey, in cooperation with the Texas Department of Transportation, has developed a computer program to estimate peak-streamflow frequency for ungaged sites in natural basins in Texas. Peak-streamflow frequency refers to the peak streamflows for recurrence intervals of 2, 5, 10, 25, 50, and 100 years. Peak-streamflow frequency...
Pesticides in streams of the United States : initial results from the National Water-Quality Assessment Program
Steven J. Larson, Robert J. Gilliom, Paul D. Capel
1999, Water-Resources Investigations Report 98-4222
Water samples from 58 rivers and streams across the United States were analyzed for pesticides as part of the National Water-Quality Assessment Program of the U.S. Geological Survey. The sampling sites represent 37 diverse agricultural basins, 11 urban basins, and 10 basins with mixed land use. Forty-six pesticides and pesticide...
