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Page 961, results 24001 - 24025

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Sensitivity of alpine and subalpine lakes to acidification from atmospheric deposition in Grand Teton National Park and Yellowstone National Park, Wyoming
Leora Nanus, Donald H. Campbell, Mark W. Williams
2005, Scientific Investigations Report 2005-5023
The sensitivity of 400 lakes in Grand Teton and Yellowstone National Parks to acidification from atmospheric deposition of nitrogen and sulfur was estimated based on statistical relations between acid-neutralizing capacity concentrations and basin characteristics to aid in the design of a long-term monitoring plan for Outstanding Natural Resource Waters. Acid-neutralizing...
Occurrence of fecal-indicator bacteria and protocols for identification of fecal-contamination sources in selected reaches of the West Branch Brandywine Creek, Chester County, Pennsylvania
Peter J. Cinotto
2005, Scientific Investigations Report 2005-5039
The presence of fecal-indicator bacteria indicates the potential presence of pathogens originating from the fecal matter of warm-blooded animals. These pathogens are responsible for numerous human diseases ranging from common diarrhea to meningitis and polio. The detection of fecal-indicator bacteria and interpretation of the resultant data are, therefore, of great...
Use of the Biotic Ligand Model to predict metal toxicity to aquatic biota in areas of differing geology
Kathleen S. Smith
2005, Conference Paper, Proceedings of the 2005 National Meeting of the American Society of Mining and Reclamation
This work evaluates the use of the biotic ligand model (BLM), an aquatic toxicity model, to predict toxic effects of metals on aquatic biota in areas underlain by different rock types. The chemical composition of water, soil, and sediment is largely derived from the composition of the underlying rock. Geologic...
Water resources on and near the Nottawaseppi Huron band of Potawatomi indian tribal lands, Calhoun County, Michigan, 2000-03
T. L. Weaver, D. Healy, T.G. Sabin
2005, Open-File Report 2004-1406
The Nottawaseppi Huron Band of Potawatomi Indians in Calhoun County, Michigan is concerned about the water quality and quantity of streams in and around tribal lands and of shallow ground water. The tribe wanted to establish a database that included streamflow, stage, and water quality of local streams and quality...
Water resources data, Oakland County, Michigan 2001-2004
Stephen S. Aichele, S. L. Crowley, C.K. Tariska, J. Stopar
2005, Open-File Report 2004-1417
The U.S. Geological Survey (USGS), in cooperation with Oakland County, the Huron-Clinton Metropark Authority, the Michigan Department of Environmental Quality (MDEQ), and the Rouge Program Office, collected streamflow, water-quality, and ground-water-level data in watersheds across Oakland County during water years 2001, 2002, 2003, and 2004. Water years begin October 1...
Comparison of preconstruction and 2003 bathymetric and topographic surveys of Lake McConaughy, Nebraska
Wade H. Kress, Sonja K. Sebree, Gregory R. Littin, Michael A. Drain, Michael E. Kling
2005, Scientific Investigations Report 2005-5040
The U.S. Geological Survey, in cooperation with The Central Nebraska Public Power and Irrigation District, conducted a study that used bathymetric and topographic surveying in conjunction with Geographical Information Systems techniques to determine the 2003 physical shape, current storage capacity, and the changes in storage capacity of Lake McConaughy that...
Effects of urban land-use change on streamflow and water quality in Oakland County, Michigan, 1970-2003, as inferred from urban gradient and temporal analysis
Stephen S. Aichele
2005, Scientific Investigations Report 2005-5016
Various adverse hydrologic effects on streams have been attributed to urban development and expanded impervious surface area, including increased high flows, decreased low flows, increased variability (commonly referred to as flashiness), nutrient enrichment, and increased dissolved solids concentrations. These effects are often observed through the use of urban-gradient studies, which...
Reconnaissance of the Hydrogeology of Ta'u, American Samoa
Scot K. Izuka
2005, Scientific Investigations Report 2004-5240
Analysis of existing data and information collected on a reconnaissance field visit supports a conceptual model of ground-water occurrence in Ta'u, American Samoa, in which a thin freshwater lens exists in a predominantly high-permeability aquifer that receives high rates of recharge. Because the freshwater lens is thin throughout most of...
Selection of colors and patterns for geologic maps of the U.S. Geological Survey
Water Resources Division, U.S. Geological Survey
2005, Techniques and Methods 11-B1
U.S. Geological Survey (USGS) color and pattern standards and conventions for geologic maps have evolved since the USGS published its first set of standards in 1881. Since that time, USGS personnel have continuously updated and revised the standards in response to the need to show increasingly complex geologic map data...
Median and Low-Flow Characteristics for Streams under Natural and Diverted Conditions, Northeast Maui, Hawaii
Stephen B. Gingerich
2005, Scientific Investigations Report 2004-5262
Flow-duration statistics under natural (undiverted) and diverted flow conditions were estimated for gaged and ungaged sites on 21 streams in northeast Maui, Hawaii. The estimates were made using the optimal combination of continuous-record gaging-station data, low-flow measurements, and values determined from regression equations developed as part of this study. Estimated...
Water resources data, New Mexico, water year 2004
Dave Byrd, Harriet R. Allen, Mary Montano
2005, Water Data Report NM-04-1
Water-resources data for the 2004 water year for New Mexico consist of records of discharge and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality in wells and springs. This report contains discharge records for 185 gaging stations; stage and...
Geologic and geophysical maps of the Las Vegas 30' x 60' quadrangle, Clark and Nye counties, Nevada, and Inyo County, California
William R. Page, Scott C. Lundstrom, Anita G. Harris, Victoria E. Langenheim, Jeremiah B. Workman, Shannon Mahan, James B. Paces, Gary L. Dixon, Peter D. Rowley, B.C. Burchfiel, John W. Bell, Eugene I. Smith
2005, Scientific Investigations Map 2814
Las Vegas and Pahrump are two of the fastest growing cities in the US, and the shortage of water looms as among the greatest future problems for these cities. These new maps of the Las Vegas 30 x 60-minute quadrangle provide a geologic and geophysical framework and fundamental earth...
Water resources data for Florida water year 2004volume 1A. northeast Florida surface water
Thomas A. Herrett, Glen W. Hess, Jon G. House, Gregory P. Ruppert, Mary-Lorraine Courts
2005, Water Data Report FL-04-1A
Water resources data for the 2004 water year in Florida consist of continuous or daily discharge for 405 streams, periodic discharge for 12 streams, continuous or daily stage for 159 streams, periodic stage for 19 streams, peak stage and discharge for 30 streams; continuous or daily elevations for 14 lakes,...
The New Hampshire watershed tool: a geographic information system tool to estimate streamflow statistics and ground-water-recharge rates
Scott A. Olson, Robert H. Flynn, Craig M. Johnston, Gary D. Tasker
2005, Open-File Report 2005-1172
Estimates of low-flow statistics, flow durations, and ground-water-recharge rates are needed to assist water-resource managers in assessing surface-water resources and ground-water availability. Often these estimates are required at ungaged sites where no observed streamflow data are available for analysis. Regression equations for estimating low-flow statistics and flow durations, and for...
S-wave refraction survey of alluvial aggregate
Karl J. Ellefsen, Gary J. Tuttle, Jackie M. Williams, Jeffrey E. Lucius
2005, Scientific Investigations Report 2005-5012
An S-wave refraction survey was conducted in the Yampa River valley near Steamboat Springs, Colo., to determine how well this method could map alluvium, a major source of construction aggregate. At the field site, about 1 m of soil overlaid 8 m of alluvium that, in turn, overlaid sedimentary bedrock....
Vitrinite reflectance data for the Permian Basin, west Texas and southeast New Mexico
Mark Pawlewicz, Charles E. Barker, Sargent McDonald
2005, Open-File Report 2005-1171
This report presents a compilation of vitrinite reflectance (Ro) data based on analyses of samples of drill cuttings collected from 74 boreholes spread throughout the Permian Basin of west Texas and southeast New Mexico (fig. 1). The resulting data consist of 3 to 24 individual Ro analyses representing progressively deeper...
Effects of aquifer heterogeneity on ground-water flow and chloride concentrations in the Upper Floridan aquifer near and within an active pumping well field, west-central Florida
A. B. Tihansky
2005, Scientific Investigations Report 2004-5268
Chloride concentrations have been increasing over time in water from wells within and near the Eldridge-Wilde well field, near the coast in west-central Florida. Variable increases in chloride concentrations from well to well over time are the combined result of aquifer heterogeneity and ground-water pumping within the Upper Floridan aquifer....
Geodatabase of environmental information for Air Force Plant 4 and Naval Air Station-Joint Reserve Base Carswell Field, Fort Worth, Texas, 1990-2004
Sachin D. Shah, Sean M. Quigley
2005, Open-File Report 2005-1041
Air Force Plant 4 (AFP4) and adjacent Naval Air Station-Joint Reserve Base (NAS-JRB) at Fort Worth, Tex., constitute a government-owned, contractor-operated (GOCO) facility that has been in operation since 1942. Contaminants from the facility, primarily volatile organic compounds (VOCs) and metals, have entered the groundwater-flow system through leakage from waste-disposal...
Lake Mohave Geophysical Survey 2002: GIS Data Release
VeeAnn A. Cross, David S. Foster, David C. Twichell
2005, Open-File Report 2004-1247
This CD-ROM contains sidescan-sonar imagery, sub-bottom reflection profiles, and an interpretive map derived from these data. These data were collected in Lake Mohave, a reservoir behind the Davis Dam and below the Hoover Dam on the Colorado River. These data are veiwable within an Environmental system Research Institute, Inc. (ESRI)...
Seismic-hazard maps for the conterminous United States
Arthur D. Frankel, Mark D. Petersen, Charles S. Mueller, Kathleen M. Haller, Russell L. Wheeler, E. V. Leyendecker, Robert L. Wesson, Stephen C. Harmsen, Chris H. Cramer, David M. Perkins, Kenneth S. Rukstales
2005, Scientific Investigations Map 2883
This publication consists of six map sheets (titles and text included in this document, below), geospatial datasets, and metadata. The geospatial datasets consist of ArcInfo export files for the seismic-hazard point and polygon data shown on the sheets. Probabilistic seismic-hazard maps were prepared for the conterminous United States portraying peak horizontal...
Trends in streamflow, sedimentation, and sediment chemistry for the Wolf River, Menominee Indian Reservation, Wisconsin, 1850-1999
Faith A. Fitzpatrick
2005, Scientific Investigations Report 2005-5030
Historical trends in streamflow, sedimentation, and sediment chemistry of the Wolf River were examined for a 6-mile reach that flows through the southern part of the Menominee Indian Reservation and the northern part of Shawano County, Wis. Trends were examined in the context of effects from dams, climate, and land-cover...
Remote sensing for environmental site screening and watershed evaluation in Utah Mine lands: East Tintic mountains, Oquirrh mountains, and Tushar mountains
Barnaby W. Rockwell, Robert R. McDougal, Carol A. Gent
2005, Scientific Investigations Report 2004-5241
Imaging spectroscopy-a powerful remote-sensing tool for mapping subtle variations in the composition of minerals, vegetation, and man-made materials on the Earth's surface-was applied in support of environmental assessments and watershed evaluations in several mining districts in the State of Utah. Three areas were studied through the use of Landsat 7...