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Page 183, results 4551 - 4575

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Not all publications have extents, not all extents are completely accurate
Fecal-indicator bacteria in the Newfound Creek watershed, western North Carolina, during a high and low streamflow condition, 2003
Elise M. Giddings, Carolyn J. Oblinger
2004, Scientific Investigations Report 2004-5257
Water quality in the Newfound Creek watershed has been shown to be affected by bacteria, sediment, and nutrients. In this study, Escherichia coli (E. coli) bacteria were sampled at five sites in Newfound Creek and five tributary sites during low flow on May 28, 2003, and high flow on November...
Hydrogeology and water quality of the Pepacton Reservoir Watershed in southeastern New York. Part 4. Quantity and quality of ground-water and tributary contributions to stream base flow in selected main-valley reaches
Paul M. Heisig
2004, Scientific Investigations Report 2004-5018
Estimates of the quantity and quality of ground-water discharge from valley-fill deposits were calculated for nine valley reaches within the Pepacton watershed in southeastern New York in July and August of 2001. Streamflow and water quality at the upstream and downstream end of each reach and at intervening tributaries were...
Water-use trends in the desert southwest: 1950-2000
Alice D. Konieczki, Julie A. Heilman
2004, Scientific Investigations Report 2004-5148
The population of the Desert Southwest is among the fastest growing in the country. In this area, ground-water supplies have been developed, surface-water resources have been fully appropriated, and conservation and conjunctive water-use measures are being used to meet water-resource needs. Complex networks of water-distribution systems have been developed to...
Pesticide compounds in streamwater in the Delaware River Basin, December 1998-August 2001
R. Edward Hickman
2004, Scientific Investigations Report 2004-5105
During 1998-2001, 533 samples of streamwater at 94 sites were collected in the Delaware River Basin in Pennsylvania, New Jersey, New York, and Delaware as part of the U.S. Geological Survey National Water-Quality Assessment Program. Of these samples, 531 samples were analyzed for dissolved concentrations of 47 pesticide compounds...
Evaluation of pier-scour equations for coarse-bed streams
Katherine J. Chase, Stephen R. Holnbeck
2004, Scientific Investigations Report 2004-5111
Streambed scour at bridge piers is among the leading causes of bridge failure in the United States. Several pier-scour equations have been developed to calculate potential scour depths at existing and proposed bridges. Because many pier-scour equations are based on data from laboratory flumes and from cohesionless silt- and sand-bottomed...
Surface- and ground-water relations on the Portneuf river, and temporal changes in ground-water levels in the Portneuf Valley, Caribou and Bannock Counties, Idaho, 2001-02
Gary J. Barton
2004, Scientific Investigations Report 2004-5170
The State of Idaho and local water users are concerned that streamflow depletion in the Portneuf River in Caribou and Bannock Counties is linked to ground-water withdrawals for irrigated agriculture. A year-long field study during 2001 02 that focused on monitoring surface- and ground-water relations was conducted, in cooperation with the...
Water quality, hydrology, and the effects of changes in phosphorus loading to Pike Lake, Washington County, Wisconsin, with special emphasis on inlet-to-outlet short-circuiting
William J. Rose, Dale M. Robertson, Elizabeth A. Mergener
2004, Scientific Investigations Report 2004-5141
Pike Lake is a 459-acre, mesotrophic to eutrophic dimictic lake in southeastern Wisconsin. Because of concern over degrading water quality in the lake associated with further development in its watershed, a study was conducted by the U.S. Geological Survey from 1998 to 2000 to describe the water quality and hydrology...
Water-level variations and their effects on tree growth and mortality and on the biogeochemical system at the phytoremediation demonstration site in Fort Worth, Texas, 1996-2003
Christopher L. Braun, Sandra M. Eberts, Sonya A. Jones, Gregory J. Harvey
2004, Scientific Investigations Report 2004-5107
In 1996, a field-scale phytoremediation demonstration project was initiated and managed by the U.S. Air Force at a site in western Fort Worth, Texas, using a plantation of 1-year-old stems harvested from branches of eastern cottonwoods during the dormant season (whips) and a plantation of 1-year-old eastern cottonwood seedlings (calipers)....
Extent of areal inundation of riverine wetlands along five river systems in the upper Hillsborough river watershed, west-central Florida
B. R. Lewelling
2004, Scientific Investigations Report 2004-5133
Riverine and palustrine wetlands are a major ecological component of river basins in west-central Florida. Healthy wetlands are dependent, in part, upon the frequency and duration of periodic flooding or inundation. This report assesses the extent, area, depth, frequency, and duration of periodic flooding and the effects of potential surface-water...
Total dissolved gas and water temperature in the lower Columbia river, Oregon and Washington, 2004: Quality-assurance data and comparison to water-quality standards
Dwight Q. Tanner, Heather M. Bragg, Matthew Johnston
2004, Scientific Investigations Report 2004-5249
Significant Findings When water is released through the spillways of dams, air is entrained in the water, increasing the downstream concentration of total dissolved gas. Excess dissolved-gas concentrations can have adverse effects on freshwater aquatic life. The U.S. Geological Survey (USGS), in cooperation with the U.S. Army Corps of Engineers (USACE),...
Status assessment and conservation plan for the yellow-billed loon (Gavia adamsii)
Susan L. Earnst
2004, Scientific Investigations Report 2004-5258
Because of its restricted range, small population size, specific habitat requirements, and perceived threats to its breeding habitat, the Yellow-billed Loon (Gavia adamsii) is a species of conservation concern to the U.S. Fish and Wildlife Service and the subject of a petition for listing under the Endangered Species Act. This...
Fecal-indicator bacteria in the Allegheny, Monongahela, and Ohio Rivers, near Pittsburgh, Pennsylvania, July-September 2001
John W. Fulton, Theodore F. Buckwalter
2004, Scientific Investigations Report 2004-5009
This report presents the results of a study by the Allegheny County Health Department (ACHD) and the U.S. Geological Survey (USGS) to determine the concentrations of fecal-indicator bacteria in the Allegheny, Monongahela, and Ohio Rivers (Three Rivers) in Allegheny County, Pittsburgh, Pa. Water-quality samples and river-discharge measurements were collected from...
Summary of suspended-sediment data for streams draining the Chesapeake Bay Watershed, water years 1952-2002
Allen C. Gellis, William S.L. Banks, Michael J. Langland, Sarah K. Martucci
2004, Scientific Investigations Report 2004-5056
U.S. Geological Survey suspended-sediment data from 1952 to 2002 from selected stream-gaging stations draining the nontidal parts of the Chesapeake Bay Watershed were summarized to identify areas in the Watershed with high suspended-sediment loads, yields, and concentrations. The suspended-sediment load data were separated into two periods, 1952?1984 and 1985?2001. In...
Chloroform in the hydrologic system--sources, transport, fate, occurrence, and effects on human health and aquatic organisms
Tamara Ivahnenko, Jack E. Barbash
2004, Scientific Investigations Report 2004-5137
Chloroform is one of the volatile organic compounds (VOCs) detected most frequently in both ground and surface water. Because it is also one of the four trihalomethanes (THMs) produced in the highest concentrations during the chlorination of drinking water and wastewater, the frequent detection of this compound in ground and...
Integrated monitoring of hydrogeomorphic, vegetative, and edaphic conditions in riparian ecosystems of Great Basin National Park, Nevada
Erik A. Beever, D.A. Pyke
2004, Scientific Investigations Report 2004-5185
In semiarid regions such as the Great Basin, riparian areas function as oases of cooler and more stable microclimates, greater relative humidity, greater structural complexity, and a steady flow of water and nutrients relative to upland areas. These qualities make riparian areaʼs attractive not only to resident and migratory wildlife,...
Effects of highway deicing chemicals on shallow unconsolidated aquifers in Ohio — Final report
Allison E. Kunze, Bernard N. Sroka
2004, Scientific Investigations Report 2004-5150
As a result of concerns about salt intrusion into drinking water aquifers, the effects of highway deicing chemicals on shallow aquifers were studied at eight locations in Ohio from 1988 through 2002. The study was done by the U.S. Geological Survey, in cooperation with the Ohio Department of Transportation and...
Late Quaternary deposition in the inner basins of the California continental borderland — Part A. Santa Monica Basin
William R. Normark, Mary McGann
2004, Scientific Investigations Report 2004-5183
Radiocarbon dating of sediment core samples from Santa Monica Basin document Holocene (younger than approximately 11 ka) landslides and fault offsets along the basin margin. The new dates include 17 from six piston cores on the continental slope and 11 from Ocean Drilling Program Site 1015 on the basin floor. The...
Determination of channel-morphology characteristics, bankfull discharge, and various design-peak discharges in western Montana
Sean M. Lawlor
2004, Scientific Investigations Report 2004-5263
Stream-restoration projects using natural stream designs typically are based on channel configurations that can accommodate a wide range of streamflow and sediment-transport conditions without excessive erosion or deposition. Bankfull discharge is an index of streamflow considered to be closely related to channel shape, size, and slope (channel morphology). Because of...
Three-dimensional geologic framework modeling of faulted hydrostratigraphic units within the Edwards aquifer, northern Bexar County, Texas
Michael P. Pantea, J. C. Cole
2004, Scientific Investigations Report 2004-5226
This report includes a digital, three-dimensional (3-D) faulted hydrostratigraphic model we have constructed to represent the geologic framework of the Edwards aquifer system in the area of San Antonio, northern Bexar County, Texas. The model is based on mapped geologic relationships that reflect the complex structures of the Balcones...
Hydrologic and geochemical controls on pesticide and nutrient transport to two streams on the Delmarva Peninsula
Scott W. Ator, Judith M. Denver, Michael J. Brayton
2004, Scientific Investigations Report 2004-5051
Pesticides and nutrients move from application areas through ground water and surface runoff to streams on the Delmarva Peninsula. The relative importance of different transport media to the movement of these compounds in different watersheds is related to locally variable hydrologic and geochemical conditions among areas of regionally similar land...
Instream flow characterization of upper Salmon River Basin streams, Central Idaho, 2003
Terry R. Maret, Jon Hortness, Douglas S. Ott
2004, Scientific Investigations Report 2004-5173
Anadromous fish populations in the Columbia River Basin have plummeted in the last 100 years. This severe decline led to Federal listing of chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (Oncorhynchus mykiss) stocks as endangered or threatened under the Endangered Species Act (ESA) in the 1990s. Historically, the upper Salmon...
Estimated water use in Montana in 2000
M. R. Cannon, Dave R. Johnson
2004, Scientific Investigations Report 2004-5223
The future health and economic welfare of Montana's population is dependent on a continuing supply of fresh water. Montana's finite water resources are being stressed by increasing water withdrawals and instream-flow requirements. Various water managers in Montana need comprehensive, current, and detailed water-use data to quantify current stresses and estimate...
Hydrology and cycling of nitrogen and phosphorus in Little Bean Marsh: A remnant riparian wetland along the Missouri River in Platte County, Missouri, 1996–97
Dale W. Blevins
2004, Scientific Investigations Report 2004-5171
The lack of concurrent water-quality and hydrologic data on riparian wetlands in the Midwestern United States has resulted in a lack of knowledge about the water-quality functions that these wetlands provide. Therefore, Little Bean Marsh, a remnant riparian wetland along the Missouri River, was investigated in 1996 and 1997 primarily...