Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Determination of organochlorine pesticides and polychlorinated biphenyls in bottom and suspended sediment by gas chromatography with electron-capture detection
Mary C. Noriega, Duane S. Wydoski, William T. Foreman
2004, Water-Resources Investigations Report 2003-4293
A method applicable for the determination of 19 organochlorine (OC) pesticides, including total toxaphene as a complex mixture, and 3 polychlorinated biphenyl (PCB) mixtures as Aroclor equivalents--Aroclor 1016/1242, 1254, and 1260--in soil, aquatic bottom sediment, and suspended sediment is described. Method performance data are presented. The solvent system...
Results of Electrical Resistivity Data Collected near the Town of Guernsey, Platte County, Wyoming
Robert R. McDougal, Jared D. Abraham, Robert J. Bisdorf
2004, Open-File Report 2004-1095
As part of a study to investigate subsurface geologic conditions as they relate to ground-water flow in an abandoned landfill near the town of Guernsey, Wyoming, geophysical direct current (DC) resistivity data were collected. Eight vertical resistivity soundings and eight horizontal resistivity profiles were made using single channel and multi-channel...
The National Assessment of Shoreline Change: A GIS Compilation of Vector Shorelines and Associated Shoreline Change Data for the U.S. Gulf of Mexico
Tara L. Miller, Robert A. Morton, Asbury H. Sallenger Jr., Laura J. Moore
2004, Open-File Report 2004-1089
Introduction The Coastal and Marine Geology Program of the U.S. Geological Survey has generated a comprehensive database of digital vector shorelines and shoreline change rates for the U.S. Gulf of Mexico. These data, which are presented herein, were compiled as part of the U.S. Geological Survey's National Assessment of Shoreline Change...
Biosolids, Soil, Crop, Ground-Water, and Streambed-Sediment Data for a Biosolids-Application Area Near Deer Trail, Colorado, 2000
Tracy J.B. Yager, David B. Smith, James G. Crock, Michael R. Stevens
2004, Open-File Report 2003-400
In January 1999, the U.S. Geological Survey began an expanded monitoring program near Deer Trail, Colorado, in cooperation with the Metro Wastewater Reclamation District and the North Kiowa Bijou Groundwater Management District. Monitoring components were biosolids, soils, crops, ground water, and streambed sediments. The monitoring program addresses concerns from the public...
Selected natural attenuation monitoring data, Operable Unit 1, Naval Undersea Warfare Center, Division Keyport, Washington, June 2002
Richard S. Dinicola
2004, Open-File Report 2004-1203
Previous investigations indicated that natural attenuation and biodegradation of chlorinated volatile organic compounds (CVOCs) are substantial in shallow ground water beneath the 9-acre former landfill at Operable Unit 1 (OU 1), Naval Undersea Warfare Center (NUWC), Division Keyport, Washington. The U.S. Geological Survey (USGS) has continued to monitor ground-water geochemistry...
Estimates of fetch-induced errors in Bowen-ratio energy-budget measurements of evapotranspiration from a prairie wetland, Cottonwood Lake Area, North Dakota, USA
David L. Stannard, Donald O. Rosenberry, Thomas C. Winter, Renee S. Parkhurst
2004, Wetlands (24) 498-513
Micrometeorological measurements of evapotranspiration (ET) often are affected to some degree by errors arising from limited fetch. A recently developed model was used to estimate fetch-induced errors in Bowen-ratio energy-budget measurements of ET made at a small wetland with fetch-to-height ratios ranging from 34 to 49....
Coping with mist-net capture-rate bias: Canopy height and several extrinsic factors
Elizabeth P. Mallory, Nicholas V. L. Brokaw, Steven C. Hess
2004, Studies in Avian Biology (29) 151-160
Many factors other than a species' actual abundance can affect mist-net capture rates. We used ANCOVA models to quantify some potential biases and control their effects, producing adjusted estimates of capture rates that are more directly comparable among mist-net stations. Data came from 46 two-day mist-net sessions from September 1990...
The elusive baseline of marine disease: Are diseases in ocean ecosystems increasing?
Jessica R. Ward, Kevin D. Lafferty
2004, PLoS Biology (2) 0542-057
Disease outbreaks alter the structure and function of marine ecosystems, directly affecting vertebrates (mammals, turtles, fish), invertebrates (corals, crustaceans, echinoderms), and plants (seagrasses). Previous studies suggest a recent increase in marine disease. However, lack of baseline data in most communities prevents a direct test of this hypothesis. We developed a...
Methods for estimating flood frequency in Montana based on data through water year 1998
Charles Parrett, Dave R. Johnson
2004, Water-Resources Investigations Report 2003-4308
Annual peak discharges having recurrence intervals of 2, 5, 10, 25, 50, 100, 200, and 500 years (T-year floods) were determined for 660 gaged sites in Montana and in adjacent areas of Idaho, Wyoming, and Canada, based on data through water year 1998. The updated flood-frequency information was subsequently used...
Ground magnetic data from within the Long Valley caldera, California: A website for data distribution
E. D. Anderson, C. A. Finn
2004, Open-File Report 2004-1096
No abstract available....
Regression equations for estimating concentrations of selected water-quality constituents for selected gaging stations in the Red River of the North Basin, North Dakota, Minnesota, and South Dakota
Tara Williams-Sether
2004, Water-Resources Investigations Report 2003-4291
The Dakota Water Resources Act, passed by the U.S. Congress on December 15, 2000, authorized the Secretary of the Interior to conduct a comprehensive study of future water-quantity and quality needs of the Red River of the North Basin in North Dakota and possible options to meet those water needs....
Sediment grain-size and loss-on-ignition analyses from 2002 Englebright Lake coring and sampling campaigns
Noah P. Snyder, James R. Allen, Carlin Dare, Margaret A. Hampton, Gary Schneider, Ryan J. Wooley, Charles N. Alpers, Mark C. Marvin-DiPasquale
2004, Open-File Report 2004-1080
This report presents sedimentologic data from three 2002 sampling campaigns conducted in Englebright Lake on the Yuba River in northern California. This work was done to assess the properties of the material deposited in the reservoir between completion of Englebright Dam in 1940 and 2002, as part of the Upper...
Estimates of hydraulic properties from a one-dimensional numerical model of vertical aquifer-system deformation, Lorenzi site, Las Vegas, Nevada
Michael T. Pavelko
2004, Water-Resources Investigations Report 2003-4083
Land subsidence related to aquifer-system compaction and ground-water withdrawals has been occurring in Las Vegas Valley, Nevada, since the 1930's, and by the late 1980's some areas in the valley had subsided more than 5 feet. Since the late 1980's, seasonal artificial-recharge programs have lessened the effects of summertime pumping...
Preliminary geologic map of the Big Bear City 7.5' Quadrangle, San Bernardino County, California
Fred K. Miller, Pamela M. Cossette
2004, Open-File Report 2004-1193
This data set maps and describes the geology of the Big Bear City 7.5' quadrangle, San Bernardino County, California. Created using Environmental Systems Research Institute's ARC/INFO software, the data base consists of the following items: (1) a rock-unit coverage and attribute tables (polygon and arc) containing geologic contacts, units and...
Assessment of Hazards Associated with the Bluegill Landslide, South-Central Idaho
William L. Ellis, Robert L. Schuster, William H. Schulz
2004, Open-File Report 2004-1054
The Bluegill landslide, located in south-central Idaho, is part of a larger landslide complex that forms an area the Salmon Falls Creek drainage named Sinking Canyon Recent movement of the Bluegill landslide, apparently beginning sometime in late 1998 or early 1999, has caused a 4.5 ha area of the canyon...
Hydrogeologic characteristics of four public drinking-water supply springs in northern Arkansas
Joel M. Galloway
2004, Water-Resources Investigations Report 2003-4307
In October 2000, a study was undertaken by the U.S. Geological Survey (USGS) in cooperation with the Arkansas Department of Health to determine the hydrogeologic characteristics, including the extent of the recharge areas, for Hughes Spring, Stark Spring, Evening Shade Spring, and Roaring Spring, which are used for public-water supply...
Sharing of Ribotype Patterns of Escherichia Coli Isolates During Baseflow and Stormflow Conditions
Peter G. Hartel, Elizabeth A. Frick, Adrienne L. Funk, Jennifer L. Hill, Jacob D. Summer, M. Brian Gregory
2004, Scientific Investigations Report 2004-5004
Factors affecting bacterial source tracking are important to understand because they affect the amount of sampling needed to describe fecal sources in a watershed adequately. The study area was a 76-kilometer reach of the Chattahoochee River and its tributaries in Metropolitan Atlanta, Georgia. Escherichia coli was isolated from water samples...
Predicted seafloor facies of Central Santa Monica Bay, California
Peter Dartnell, James V. Gardner
2004, Open-File Report 2004-1081
Summary -- Mapping surficial seafloor facies (sand, silt, muddy sand, rock, etc.) should be the first step in marine geological studies and is crucial when modeling sediment processes, pollution transport, deciphering tectonics, and defining benthic habitats. This report outlines an empirical technique that predicts the distribution of seafloor facies for...
Geology of the National Capital Region: Field trip guidebook
William Burton, Scott Southworth
2004, Circular 1264
The 2004 Joint Northeast-Southeast Section Meeting of the Geological Society of America is the fourth such meeting and the third to be held in or near Washington, D.C. This guidebook and the field trips presented herein are intended to provide meeting participants, as well as other interested readers, a means...
The value of long-term monitoring in the development of ground-water-flow models
Daniel T. Feinstein, David J. Hart, James T. Krohelski
2004, Fact Sheet 116-03
As environmental issues have come to the forefront of public concern, so has the awareness of the importance of ground water in the overall water cycle and as a source of the Nation’s drinking water. Heightened interest has spawned a host of scientific enterprises (Taylor and Alley, 2001). Some...
Deposition, erosion, and bathymetric change in South San Francisco Bay: 1858-1983
Amy C. Foxgrover, Shawn A. Higgins, Melissa K. Ingraca, Bruce E. Jaffe, Richard E. Smith
2004, Open-File Report 2004-1192
Since the California Gold Rush of 1849, sediment deposition, erosion, and the bathymetry of South San Francisco Bay have been altered by both natural processes and human activities. Historical hydrographic surveys can be used to assess how this system has evolved over the past 150 years. The National Ocean Service...
Sources and Transport of Nutrients, Organic Carbon, and Chlorophyll-a in the San Joaquin River Upstream of Vernalis, California, during Summer and Fall, 2000 and 2001
Charles R. Kratzer, Peter D. Dileanis, Celia Zamora, Steven R. Silva, Carol Kendall, Brian A. Bergamaschi, Randy A. Dahlgren
2004, Water-Resources Investigations Report 2003-4127
Oxidizable materials from the San Joaquin River upstream of Vernalis can contribute to low dissolved oxygen episodes in the Stockton Deep Water Ship Channel that can inhibit salmon migration in the fall. The U.S. Geological Survey collected and analyzed samples at four San Joaquin River sites in July through October...
Granular avalanches across irregular three-dimensional terrain: 2. Experimental tests
Richard M. Iverson, Matthew Logan, Roger P. Denlinger
2004, Journal of Geophysical Research Earth Surface (109)
Scaling considerations indicate that miniature experiments can be used to test models of granular avalanches in which the effects of intergranular fluid and cohesion are negligible. To test predictions of a granular avalanche model described in a companion paper, we performed bench top experiments involving avalanches of dry sand across...
Granular avalanches across irregular three-dimensional terrain: 1. Theory and computation
Roger P. Denlinger, Richard M. Iverson
2004, Journal of Geophysical Research Earth Surface (109)
To establish a theoretical basis for predicting and interpreting the behavior of rapid mass movements on Earth's surface, we develop and test a new computational model for gravity-driven motion of granular avalanches across irregular, three-dimensional (3-D) terrain. The principles embodied in the model are simple and few: continuum mass and...
Chemistry of Stream Sediments and Surface Waters in New England
Gilpin R. Robinson Jr., Katherine E. Kapo, Jeffrey N. Grossman
2004, Open-File Report 2004-1026
Summary -- This online publication portrays regional data for pH, alkalinity, and specific conductance for stream waters and a multi-element geochemical dataset for stream sediments collected in the New England states of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. A series of interpolation grid maps portray the chemistry...
