Gasoline-Related Compounds in Lakes Mead and Mohave, Nevada, 2004-06
Michael S. Lico, B. Thomas Johnson
2007, Scientific Investigations Report 2007-5144
The distribution of man-made organic compounds, specifically gasoline-derived compounds, was investigated from 2004 to 2006 in Lakes Mead and Mohave and one of its tributary streams, Las Vegas Wash. Compounds contained in raw gasoline (benzene, toluene, ethylbenzene, xylenes; also known as BTEX compounds) and those produced during combustion of gasoline...
Organic Chemical Concentrations and Reproductive Biomarkers in Common Carp (Cyprinus carpio) Collected from Two Areas in Lake Mead, Nevada, May 1999-May 2000
Steven L. Goodbred, Thomas J. Leiker, Reynaldo Patiño, Jill A. Jenkins, Nancy D. Denslow, Erik Orsak, Michael R. Rosen
2007, Data Series 286
The U.S. Geological Survey, in cooperation with the U.S. Fish and Wildlife Service, National Park Service, Bureau of Reclamation, and Nevada Department of Wildlife, collected and assessed data to determine the general health and reproductive status of common carp (Cyprinus carpio) at two study areas in Lake Mead, Nevada, during...
Geologic map of the Craters of the Moon 30' x 60' Quadrangle, Idaho
Mel A. Kuntz, Betty Skipp, Duane E. Champion, Philip B. Gans, D. Paco VanSistine, Scott R. Snyders
2007, Scientific Investigations Map 2969
The Craters of the Moon 30 x 60 minute quadrangle shows the geology of the northern two-thirds of the Craters of the Moon (COM) lava field and volcanic structures of the northern and central parts of the Great Rift volcanic rift zone. The COM lava field is the largest,...
Estimated and measured traveltime for the Crow River watershed, Minnesota
Allan D. Arntson
2007, Scientific Investigations Report 2007-5138
A time-of-travel study involving a luminescent dye was done on the Crow River in Minnesota from Rockford to the confluence with the Mississippi River at Dayton on July 11, 2006, at a streamflow of 293 cubic feet per second at Rockford. Dye was injected in the Crow River at Rockford,...
Assessment of undiscovered oil and gas resources in Cretaceous-Tertiary coal beds of the Gulf Coast region, 2007
Peter D. Warwick
2007, Fact Sheet 2007-3039
Using a geology-based assessment methodology, the U.S. Geological Survey estimated a mean of 4.06 trillion cubic feet of undiscovered, technically recoverable natural gas in Cretaceous-Tertiary coal beds of the onshore lands and State waters of the Gulf Coast....
Summary of Suspended-Sediment Concentration Data, San Francisco Bay, California, Water Year 2005
Paul A. Buchanan, Megan A. Lionberger
2007, Data Series 282
Suspended-sediment concentration data were collected by the U.S. Geological Survey in San Francisco Bay during water year 2005 (October 1, 2004-September 30, 2005). Optical sensors and water samples were used to monitor suspended-sediment concentration at two sites in Suisun Bay, three sites in San Pablo Bay, two sites in Central...
2007 Rocky Mountain section Friends of the Pleistocene field trip - Quaternary geology of the San Luis basin of Colorado and New Mexico, September 7-9, 2007
Michael N. Machette, Mary-Margaret Coates, Margo L. Johnson
2007, Open-File Report 2007-1193
Prologue Welcome to the 2007 Rocky Mountain Cell Friends of the Pleistocene Field Trip, which will concentrate on the Quaternary geology of the San Luis Basin of Colorado and New Mexico. To our best knowledge, Friends of the Pleistocene (FOP) has never run a trip through the San Luis Basin, although...
Selected micrometeorological, soil-moisture, and evapotranspiration data at Amargosa Desert Research Site in Nye County near Beatty, Nevada, 2001-05
Michael J. Johnson, C. Justin Mayers, C. Amanda Garcia, Brian J. Andraski
2007, Data Series 284
Selected micrometeorological and soil-moisture data were collected at the Amargosa Desert Research Site adjacent to a low-level radio-active waste and hazardous chemical waste facility near Beatty, Nevada, 2001-05. Evapotranspiration data were collected from February 2002 through the end of December 2005. Data were col-lected in support of ongoing research to...
Environmental Setting of the Granger Drain and DR2 Basins, Washington, 2003-04
Karen L. Payne, Henry M. Johnson, Robert W. Black
2007, Scientific Investigations Report 2007-5102
The Granger Drain and DR2 basins are located in the Yakima River basin in south central Washington. These agricultural basins are one of five areas in the United States selected for study as part of the National Water-Quality Assessment Program Agricultural Chemicals: Source, Transport, and Fate Study. The Program is...
Paleoenvironmental Assessment and Deglacial Chronology of the Onondaga Trough, Onondaga County, New York
William M. Kappel, Mark A. Teece
2007, Open-File Report 2007-1060
Introduction The U.S. Geological Survey, in cooperation with the Onondaga Lake Partnership and Onondaga Environmental Institute, has been studying the hydrogeology of the Onondaga Trough since 2002 to determine the movement and concentration of naturally occurring brine in the glacial valley-fill aquifer. Numerous shallow and deep test holes have been drilled...
Estimates of Monthly Ground-Water Recharge to the Yakima River Basin Aquifer System, Washington, 1960-2001, for Current Land-Use and Land-Cover Conditions
J. J. Vaccaro, T. D. Olsen
2007, Open-File Report 2007-1238
Unique ID grid with a unique value per Hydrologic Response Unit (HRU) per basin in reference to the estimated ground-water recharge for current conditions in the Yakima Basin Aquifer System, (USGS report SIR 2007-5007). Total 78,144 unique values. This grid made it easy to provide estimates of monthly ground-water recharge...
Determination of the δ15N of nitrate in water; RSIL lab code 2899
Tyler B. Coplen, Haiping Qi, Kinga Revesz, Karen Casciotti, Janet E. Hannon
2007, Techniques and Methods 10-C16
The purpose of the Reston Stable Isotope Laboratory (RSIL) lab code 2899 is to determine the δ15N of nitrate (NO3-) in water. The δ15N of the dissolved NO3- is analyzed by conversion of the NO3- to nitrous oxide (N2O), which serves as the analyte for mass spectrometry. A culture of...
Legacy mercury in Alviso Slough, south San Francisco Bay, California: Concentration, speciation and mobility
Mark Marvin-DiPasquale, Marisa H. Cox
2007, Open-File Report 2007-1240
Mercury (Hg) is a significant contaminant in the waters, sediment and biota of San Francisco Bay, largely resulting from extensive historic regional mining activities. Alviso Slough represents one of the most mercury contaminated waterways entering south San Francisco Bay, as it is associated with the drainage of the New Almaden...
Interim Summary: Nesting Counts of Ospreys and Brown Pelicans in Northwestern Mexico, 2006
Charles J. Henny, Daniel W. Anderson
2007, Open-File Report 2007-1212
The distribution and abundance of nesting populations of California brown pelicans (Pelecanus occidentalis californicus) and ospreys (Pandion haliaetus) were documented in 2006 in northwestern Mexico. For ospreys only, the 2006 data were compared to population estimates from two previous surveys (one conducted in 1977 and another conducted in the period...
MODFLOW-2005, The U.S. Geological Survey Modular Ground-Water Model - Documentation of the Multiple-Refined-Areas Capability of Local Grid Refinement (LGR) and the Boundary Flow and Head (BFH) Package
Steffen W. Mehl, Mary C. Hill
2007, Techniques and Methods 6-A21
This report documents the addition of the multiple-refined-areas capability to shared node Local Grid Refinement (LGR) and Boundary Flow and Head (BFH) Package of MODFLOW-2005, the U.S. Geological Survey modular, three-dimensional, finite-difference ground-water flow model. LGR now provides the capability to simulate ground-water flow by using one or more block-shaped,...
Assessment of Undiscovered Oil and Gas Resources of the Illinois Basin, 2007
Christopher S. Swezey
2007, Fact Sheet 2007-3058
Using a geology-based assessment methodology, the U.S. Geological Survey estimated the following quantities of undiscovered, technically recoverable oil and gas resources in the Illinois Basin, USA: (1) a mean of 214 million barrels of oil; (2) a mean of 4.65 trillion cubic feet of natural gas; and (3) a mean of...
OPR-PPR, a computer program for assessing data importance to model predictions using linear statistics
Matthew J. Tonkin, Claire R. Tiedeman, D. Matthew Ely, Mary C. Hill
2007, Techniques and Methods 6-E2
The OPR-PPR program calculates the Observation-Prediction (OPR) and Parameter-Prediction (PPR) statistics that can be used to evaluate the relative importance of various kinds of data to simulated predictions. The data considered fall into three categories: (1) existing observations, (2) potential observations, and (3) potential information about parameters. The first two...
MMA, A Computer Code for Multi-Model Analysis
Eileen P. Poeter, Mary C. Hill
2007, Techniques and Methods 6-E3
This report documents the Multi-Model Analysis (MMA) computer code. MMA can be used to evaluate results from alternative models of a single system using the same set of observations for all models. As long as the observations, the observation weighting, and system being represented are the same, the models can...
Organic geochemistry of sediments in nearshore areas of the Mississippi and Atchafalaya Rivers: I. General organic characterization
William H. Orem, Robert J. Rosenbauer, Peter W. Swarzenski, Harry E. Lerch, M.D. Corum, Anne L. Bates
2007, Open-File Report 2007-1180
This report presents results on the general organic characteristics of sediment cores collected from the coastal zone of the Mississippi River system, including distributions of the important nutrient elements (C, N, P, and S). This was part of a larger study conducted from 2001-2005 to examine the delivery of sediment-associated...
Continuous water-quality monitoring and regression analysis to estimate constituent concentrations and loads in the Sheyenne River, North Dakota, 1980-2006
Karen R. Ryberg
2007, Scientific Investigations Report 2007-5153
This report presents the results of a study by the U.S. Geological Survey, done in cooperation with the North Dakota State Water Commission, to estimate water-quality constituent concentrations at seven sites on the Sheyenne River, N. Dak. Regression analysis of water-quality data collected in 1980-2006 was used to estimate concentrations...
Monitoring Ground-Water Quality in Coastal Ecosystems
John A. Colman, John P. Masterson
2007, Open-File Report 2007-1149
INTRODUCTION The Cape Cod National Seashore (CACO) extends along more than 70 km of Atlantic Ocean open-beach coastline and includes three large saltwater bays - Wellfleet Harbor, Nauset Marsh, and Pleasant Bay (fig. 1). CACO encompasses about 18,000 ha of uplands, lakes, wetlands, and tidal lands (Godfrey and others, 1999) including...
Coal quality and major, minor, and trace elements in the Powder River, Green River, and Williston basins, Wyoming and North Dakota
Gary D. Stricker, Romeo M. Flores, Michael H. Trippi, Margaret S. Ellis, Carol M. Olson, Jonah E. Sullivan, Kenneth I. Takahashi
2007, Open-File Report 2007-1116
The U.S. Geological Survey (USGS), in cooperation with the Wyoming Reservoir Management Group (RMG) of the Bureau of Land Management (BLM) and nineteen independent coalbed methane (CBM) gas operators in the Powder River and Green River Basins in Wyoming and the Williston Basin in North Dakota, collected 963 coal samples...
Determination of the δ15N and δ18O of nitrate in water; RSIL lab code 2900
Tyler B. Coplen, Haiping Qi, Kinga Revesz, Karen Casciotti, Janet E. Hannon
2007, Techniques and Methods 10-C17
The purpose of the Reston Stable Isotope Laboratory (RSIL) lab code 2900 is to determine the δ15N and δ18O of nitrate (NO3-) in water. The δ15N and δ18O of the dissolved NO3- are analyzed by converting the NO3- to nitrous oxide (N2O), which serves as the analyte for mass spectrometry....
Aquatic Community, Hydrologic, and Water-Quality Data for Apopka, Bugg, Rock, and Wekiva Springs, Central Florida, 1931-2006
Stephen J. Walsh, Sharon E. Kroening
2007, Open-File Report 2007-1135
This report summarizes aquatic community, hydrologic, and water-quality data collected or compiled by the U.S. Geological Survey (USGS) for Apopka, Bugg, Rock, and Wekiva springs from October 1, 2005 to September 30, 2006. Aquatic community data are summarized for quarterly collections of benthic macroinvertebrates, and fishes collected during one sampling...
Determination of the δ15N of nitrate in solids; RSIL lab code 2894
Tyler B. Coplen, Haiping Qi, Kinga Revesz, Karen Casciotti, Janet E. Hannon
2007, Techniques and Methods 10-C12
The purpose of the Reston Stable Isotope Laboratory (RSIL) lab code 2894 is to determine the δ15N of nitrate (NO3-) in solids. The nitrate fraction of the nitrogen species is dissolved by water (called leaching) and can be analyzed by the bacterial method covered in RSIL lab code 2899. After...
