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Page 2554, results 63826 - 63850

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Hydrologic characteristics of the Agua Fria National Monument, central Arizona, determined from the reconnaissance study
John B. Fleming
2005, Scientific Investigations Report 2004-5163
Hydrologic conditions in the newly created Agua Fria National Monument were characterized on the basis of existing hydrologic and geologic information, and streamflow data collected in May 2002. The study results are intended to support the Bureau of Land Management's future water-resource management responsibilities, including quantification of a Federal reserved...
Hydrogeologic framework, ground-water quality, and simulation of ground-water flow at the Fair Lawn Well Field Superfund site, Bergen County, New Jersey
Jean C. Lewis-Brown, Donald E. Rice, Robert Rosman, Nicholas P. Smith
2005, Scientific Investigations Report 2004-5280
Production wells in the Westmoreland well field, Fair Lawn, Bergen County, New Jersey (the 'Fair Lawn well field Superfund site'), are contaminated with volatile organic compounds, particularly trichloroethylene, tetrachloroethylene, and 1,1,1-trichloroethane. In 1983, the U.S. Environmental Protection Agency (USEPA) placed the Westmoreland well field on its National Priority List of...
The fishes of Wilson's Creek National Battlefield, Missouri, 2003
James C. Petersen, B. G. Justus
2005, Scientific Investigations Report 2005-5127
An inventory of fishes of Wilson's Creek National Battlefield was conducted at eight sites on three streams, two springs, a pond, and within a cave. Fish were sampled using conventional electrofishing equipment during July 2003. Approximately 325 fish were collected and identified from five of the eight sampling sites. A...
Simulated water-level responses, ground-water fluxes, and storage changes for recharge scenarios along Rillito Creek, Tucson, Arizona
John P. Hoffmann, Stanley A. Leake
2005, Scientific Investigations Report 2004-5286
A local ground-water flow model is used to simulate four recharge scenarios along Rillito Creek in northern Tucson to evaluate mitigating effects on ground-water deficits and water-level declines in Tucson's Central Well Field. The local model, which derives boundary conditions from a basin-scale model, spans the 12-mile reach of Rillito...
Questa baseline and pre-mining ground-water quality investigation. 5. Well installation, water-level data, and surface- and ground-water geochemistry in the Straight Creek drainage basin, Red River Valley, New Mexico, 2001-03
Cheryl A. Naus, R. Blaine McCleskey, D. Kirk Nordstrom, Lisa C. Donohoe, Andrew G. Hunt, Frederick L. Paillet, Roger H. Morin, Philip L. Verplanck
2005, Scientific Investigations Report 2005-5088
The U.S. Geological Survey, in cooperation with the New Mexico Environment Department, is investigating the pre-mining ground-water chemistry at the Molycorp molybdenum mine in the Red River Valley, northern New Mexico. The primary approach is to determine the processes controlling ground-water chemistry at an unmined, off-site, proximal analog. The Straight...
Water Quality, Fish Tissue, and Bed Sediment Monitoring in Waterbodies of Fort Chaffee Maneuver Training Center, Arkansas, 2002-2004
B. G. Justus, Gregory P. Stanton
2005, Scientific Investigations Report 2004-5273
The Fort Chaffee Maneuver Training Center is a facility used to train as many as 50,000 Arkansas National Guardsmen each year. Due to the nature of ongoing training and also to a poor understanding of environmental procedures that were practiced in the World War II era, areas within Fort Chaffee...
The fishes of George Washington Carver National Monument, Missouri, 2003
B. G. Justus, James C. Petersen
2005, Scientific Investigations Report 2005-5128
Fish were collected at six sites at George Washington Carver National Monument by seining and electrofishing during a base-flow period on July 17-18, 2003. Approximately 700 fish were collected and identified at the six sampling sites. Those individuals represented 17 species (and 1 hybrid) and 13 genera. The number of...
The fishes of Hot Springs National Park, Arkansas, 2003
James C. Petersen, B. G. Justus
2005, Scientific Investigations Report 2005-5126
Fish communities were sampled from eight sites within Hot Springs National Park. Fish were collected by seining and electrofishing during base-flow periods in July and October 2003. All individuals were identified to species. More than 1,020 individuals were collected, representing 24 species. The number of species collected at the sites...
The fishes of Pea Ridge National Military Park, Arkansas, 2003
B. G. Justus, James C. Petersen
2005, Scientific Investigations Report 2005-5129
A fish inventory was conducted at Pea Ridge National Military Park, Arkansas, during base-flow conditions in September 2003. Six sites including four streams and two ponds were sampled using conventional electrofishing equipment (a seine also was used at one site). There were 653 individuals collected comprising 18 species (plus 1...
The drought of 1998-2002 in North Carolina — Precipitation and hydrologic conditions
J. Curtis Weaver
2005, Scientific Investigations Report 2005-5053
Drought conditions prevailed across much of North Carolina during 1998-2002, resulting in widespread record-low streamflow and ground-water levels in many areas. During this 4-year period, the drought was continuous in areas of western North Carolina, although eastern areas of the State had some periods of relief from tropical storms in...
The fishes of Buffalo National River, Arkansas, 2001-2003
James C. Petersen, B. G. Justus
2005, Scientific Investigations Report 2005-5130
During June through September 2001 and 2002, extensive fish community sampling was conducted at 29 sites within the boundaries of Buffalo National River. Samples were collected using backpack, tote barge, and boat electrofishing equipment. Kick seining also was used at all sites. To supplement these results, samples were collected in...
Ecological science and sustainability for the 21st century
Margaret A. Palmer, Emily S. Bernhardt, Elizabeth A. Chornesky, Scott L. Collins, Andrew P. Dobson, Clifford S. Duke, Barry Gold, Robert B. Jacobson, Sharon E. Kingsland, Rhonda H. Kranz, Michael J. Mappin, M. Luisa Martinez, Fiorenza Micheli, Jennifer L. Morse, Michael L. Pace, Mercedes Pascual, Stephen S. Palumbi, O. J. Reichman, Alan R. Townsend, Monica G. Turner
2005, Frontiers in Ecology and the Environment (3) 4-11
Ecological science has contributed greatly to our understanding of the natural world and the impact of humans on that world. Now, we need to refocus the discipline towards research that ensures a future in which natural systems and the humans they include coexist on a more sustainable planet. Acknowledging that...
Classification of hydrogeologic areas and hydrogeologic flow systems in the basin and range physiographic province, southwestern United States
David W. Anning, Alice D. Konieczki
2005, Professional Paper 1702
The hydrogeology of the Basin and Range Physiographic Province in parts of Arizona, California, New Mexico, Utah, and most of Nevada was classified at basin and larger scales to facilitate information transfer and to provide a synthesis of results from many previous hydrologic investigations. A conceptual model for the spatial...
Grazing by the intertidal gastropod Melampus coffeus greatly increases mangrove leaf litter degradation rates
C. Edward Proffitt, Donna Devlin
2005, Marine Ecology Progress Series (296) 209-218
Melampus coffeus, a pulmonate gastropod, forages for mangrove leaf litter at low tide and climbs tree trunks to avoid inundation during high tide. Unlike many grazers, these snails can assimilate mangrove leaf material. At Boca Ceiga Bay, Florida, densities of adult snails were high (>100 snails m–2) throughout a 130 m...
Channel and hillslope processes revisited in the Arroyo de los Frijoles watershed near Santa Fe, New Mexico
Allen C. Gellis, William W. Emmett, Luna Bergere Leopold
2005, Professional Paper 1704
Detailed documentation of geomorphic changes in the landscape of more than a few years is rarely possible. Channel cross sections, channel profiles, sediment deposition behind dams, and hillslope-erosion plots, originally benchmarked within several watersheds outside Santa Fe, New Mexico, in the 1950’s and 1960’s, for a 1966 report that documented...
Geochemistry of sediments in cores and sediment traps from Bear Lake, Utah and Idaho
James L. Bischoff, Kathleen Cummins, Donald D. Shamp
2005, Open-File Report 2005-1215
The present study of Bear Lake began in 1998. Initially, the study utilized sediments from three long cores (up to 5 m) previously collected in 1996 and short cores (up to 40 cm) collected in 1998. The short cores were specifically acquired to preserve the uppermost layers of sediment that...
Summary of significant results from studies of triazine herbicides and their degradation products in surface water, ground water, and precipitation in the midwestern United States during the 1990s
Elisabeth A. Scribner, E.M. Thurman, Donald A. Goolsby, Michael T. Meyer, William A. Battaglin, Dana W. Kolpin
2005, Scientific Investigations Report 2005-5094
Nonpoint-source contamination of water resources from triazine herbicides has been a major water-quality issue during the 1990s in the United States. To address this issue, studies of surface water, ground water, and precipitation have been carried out by the U.S. Geological Survey in the Midwestern United States. Reconnaissance studies of 147...
Surficial deposits in the Bear Lake Basin
Marith C. Reheis, Benjamin J.C. Laabs, Richard M. Forester, John P. McGeehin, Darrell S. Kaufman, Jordon Bright
2005, Open-File Report 2005-1088
Mapping and dating of surficial deposits in the Bear Lake drainage basin were undertaken to provide a geologic context for interpretation of cores taken from deposits beneath Bear Lake, which sometimes receives water and sediment from the glaciated Bear River and sometimes only from the small drainage basin of Bear...
Evaluation of unsaturated-zone solute-transport models for studies of agricultural chemicals
Bernard T. Nolan, E. Randall Bayless, Christopher T. Green, Sheena Garg, Frank D. Voss, David C. Lampe, Jack E. Barbash, Paul D. Capel, Barbara A. Bekins
2005, Open-File Report 2005-1196
Seven unsaturated-zone solute-transport models were tested with two data sets to select models for use by the Agricultural Chemical Team of the U.S. Geological Survey's National Water-Quality Assessment Program. The data sets were from a bromide tracer test near Merced, California, and an atrazine study in the White River Basin,...
Effects of land-use changes and stormflow-detention basins on flooding and nonpoint-source pollution, in Irondequoit Creek basin, Monroe and Ontario counties, New York--application of a precipitation-runoff model
William F. Coon, Mark S. Johnson
2005, Scientific Investigations Report 2005-5070
Urbanization of the 150-square-mile Irondequoit Creek basin in Monroe and Ontario Counties, N.Y., continues to spread southward and eastward from the City of Rochester, on the shore of Lake Ontario. Conversion of forested land to other uses over the past 40 years has increased to the extent that more than...
Digital data and derivative products from a high-resolution aeromagnetic survey of the central San Luis basin, covering parts of Alamosa, Conejos, Costilla, and Rio Grande counties, Colorado, and Taos county, New Mexico
Viki Bankey, V. J. S. Grauch, Ank Webbers, Inc PRJ
2005, Open-File Report 2005-1200
This report describes data collected from a high-resolution aeromagnetic survey flown over the central San Luis basin during October, 2004, by PRJ, Inc., on contract to the U.S. Geological Survey (USGS). The survey extends from just north of Alamosa, Colorado, southward to just northwest of Taos, New Mexico. It covers...