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...
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...
Mineral dissolution in the Cape Cod aquifer, Massachusetts, USA: I . Reaction stoichiometry and impact of accessory feldspar and glauconite on strontium isotopes, solute concentrations, and REY distribution
Michael Bau, Brian Alexander, John T. Chesley, Peter Dulski, Susan L. Brantley
2004, Geochimica et Cosmochimica Acta (68) 1199-1216
To compare relative reaction rates of mineral dissolution in a mineralogically simple groundwater aquifer, we studied the controls on solute concentrations, Sr isotopes, and rare earth element and yttrium (REY) systematics in the Cape Cod aquifer. This aquifer comprises mostly carbonate-free Pleistocene sediments that are about 90% quartz with minor...
Evaluation of volatilization as a natural attenuation pathway for MTBE
Matthew A. Lahvis, Arthur L. Baehr, Ronald J. Baker
2004, Groundwater (42) 258-267
Volatilization and diffusion through the unsaturated zone can be an important pathway for natural attenuation remediation of methyl tert-butyl ether (MTBE) at gasoline spill sites. The significance of this pathway depends primarily on the distribution of immiscible product within the unsaturated zone and the relative magnitude of aqueous-phase advection (ground...
SAM 2.1—A computer program for plotting and formatting surveying data for estimating peak discharges by the slope-area method
J.E. Hortness
2004, Fact Sheet 2004-3028
The U.S. Geological Survey (USGS) measures discharge in streams using several methods. However, measurement of peak discharges is often impossible or impractical due to difficult access, inherent danger of making measurements during flood events, and timing often associated with flood events. Thus, many peak discharge values often are calculated after...
Publications of the Volcano Hazards Program 2002
Manuel Nathenson
2004, Open-File Report 2004-1047
The Volcano Hazards Program of the U.S. Geological Survey (USGS) is part of the Geologic Hazards Assessments subactivity as funded by Congressional appropriation. Investigations are carried out in the Geology and Hydrology Disciplines of the USGS and with cooperators at the Alaska Division of Geological and Geophysical Surveys, University of...
Editors' message: Hydrogeology Journal in 2003
Clifford Voss, Perry Olcott, Robert Schneider
2004, Hydrogeology Journal (12) 1-2
Hydrogeology Journal appeared in six issues containing a total of 710 pages and 48 major articles, including 31 Papers and 14 Reports, as well as some Technical Notes and Book Reviews. The number of submitted manuscripts continues to increase. The final issue of 2003 also contained the annual...
Mineral stimulation of subsurface microorganisms: release of limiting nutrients from silicates
Jennifer Roberts Roger, Philip C. Bennett
2004, Chemical Geology (203) 91-108
Microorganisms play an important role in the weathering of silicate minerals in many subsurface environments, but an unanswered question is whether the mineral plays an important role in the microbial ecology. Silicate minerals often contain nutrients necessary for microbial growth, but whether the microbial community benefits from their release...
Paleozoic sedimentary rocks in the Red Dog Zn-Pb-Ag district and vicinity, western Brooks Range, Alaska: provenance, deposition, and metallogenic significance
John F. Slack, Julie A. Dumoulin, J.M. Schmidt, L. E. Young, Cameron Rombach
2004, Economic Geology (99) 1385-1414
Geochemical analyses of Paleozoic sedimentary rocks in the western Brooks Range reveal a complex evolutionary history for strata surrounding the large Zn-Pb-Ag deposits of the Red Dog district. Data for major elements, trace elements, and rare earth elements (REE) were obtained on 220 samples of unaltered and unmineralized siliciclastic rocks...
Use and environmental occurrence of veterinary pharmaceuticals in the United States
M. T. Meyer
2004, Book chapter, Pharmaceuticals in the environment: Sources, fate, effects, and risks
The purpose of this chapter is to familiarise the reader with the range of veterinary pharmaceuticals used in agriculture in the United States and to provide examples of the environmental occurrence of selected veterinary pharmaceuticals. A 1998 survey conducted by the Animal Health Institute (AHI) reported that there were 109...
Pharmaceuticals and other organic wastewater contaminants within a leachate plume downgradient of a municipal landfill
Kimberlee K. Barnes, Scott C. Christenson, Dana W. Kolpin, Michael J. Focazio, Edward T. Furlong, Steven D. Zaugg, Michael T. Meyer, Larry B. Barber
2004, Groundwater Monitoring & Remediation (24) 119-126
Ground water samples collected from the Norman Landfill research site in central Oklahoma were analyzed as part of the U.S. Geological Survey (USGS) Toxic Substances Hydrology Program's national reconnaissance of pharmaceuticals and other organic waste water contaminants (OWCs) in ground water. Five sites, four of which are located downgradient of...
Occurrence of human pharmaceuticals in water resources of the United States: A review
M. J. Focazio, D.W. Kolpin, E. T. Furlong
2004, Book chapter, Pharmaceuticals in the environment
The widespread environmental presence of some pharmaceuticals and other organic wastewater compounds has been documented globally (e.g. Buser et al. 1998; Ternes 1998; Stumpf et al.1999; Heberer et al. 2001; Kümmerer 2001; Ternes et al. 2001; Scheytt et al. 2001; Golet et al. 2002; Kolpin et al. 2002; Boyd et...
Inhibition of acetoclastic methanogenesis in crude oil- and creosote-contaminated groundwater
Ean Warren, Barbara A. Bekins, E. Michael Godsy, Virginia K. Smith
2004, Bioremediation Journal (8) 1-11
Results from a series of studies of methanogenic processes in crude oil- and creosote-contaminated aquifers indicate that acetoclastic methanogenesis is inhibited near non-aqueous sources. At a crude oil-contaminated site, numbers of acetoclastic methanogens found close to crude oil were one hundred times fewer than those of hydrogen- and formate-utilizing methanogens....
Stable Isotope Analysis of Water and Aqueous Solutions by Conventional Dual-Inlet Mass Spectrometry
Juske Horita, Carol Kendall
P. A. de Groot, editor(s)
2004, Book chapter, Handbook of stable isotope analytical techniques
This chapter reviews the recent developments and refinements of analytical methods for preparing waters and other aqueous samples of different origins for the measurement of the oxygen and hydrogen isotopes by conventional dual-inlet, dynamic gas-source isotope-ratio mass spectrometry. The emerging techniques of continuous-flow mass-spectrometry are discussed as they are employed...
Hydrology: Chapter D
Claudia C. Faunt, Frank A. D’Agnese, Grady M. O’Brien
Wayne R. Belcher, Donald S. Sweetkind, editor(s)
2004, Book chapter, Death Valley regional groundwater flow system, Nevada and California--hydrogeologic framework and transient groundwater flow model
No abstract available....
Watersheds for U.S Geological Survey National Stream Quality Accounting Network (NASQAN) sampling sites 1996-2000
Water Resources Division, U.S. Geological Survey
2004, Report
A digital representation of the watersheds of 43 sites on large river systems sampled by the National Stream Quality Accounting Network (NASQAN) of the U. S. Geological Survey (USGS) in 2000 was created primarily from 1:250,000 hydrologic units(HUCs) in the United States. Watershed information from Canada and Mexico was incorporated...
Basic ground-water hydrology
Ralph C. Heath
2004, Water Supply Paper 2220
Ground water is one of the Nation's most valuable natural resources. It is the source of about 40 percent of the water used for all purposes exclusive of hydropower generation and electric powerplant cooling.Surprisingly, for a resource that is so widely used and so important to the health and to...
Selenium, iron, and chromium stable isotope ratio measurements by the double isotope spike TIMS method
Thomas M. Johnson, Thomas D. Bullen
2004, Book chapter, Handbook of stable isotope analytical techniques
This chapter focuses on the double-spike calibrated thermal ionization mass spectrometry (TIMS) methods for measurement of mass dependent isotope fractionation in Se, Fe, and Cr. Current measurement precision is approximately ± 0.2 per mil on 80Se / 76Se, 56Fe / 54Fe, and 53Cr / 52Cr. Sample size requirements are 500ng, 1μg, and 250ng for Se, Fe,...
Molecular markers and their use in environmental organic geochemistry
Robert P. Eganhouse
2004, Book chapter, The geochemical society special publications
Molecular markers are organic substances that carry information about sources of organic matter or contamination. The source/marker relation can be used to indicate the presence of a given source material (qualitative), or, under appropriate conditions, to estimate the amount of a source material (quantitative source apportionment) in the environment. Assemblages...
Modeling microbial enhancement of Zn (II) and Pb (II) transport in columns packed with geologic media
Lee L. Landkamer, R.W. Harvey, D. W. Metge, J. N. Ryan
Jay R. Alder, R.R. Seal, editor(s)
2004, Book chapter, Water rock interaction
No abstract available....
Methylmercury contamination of aquatic ecosystems: A widespread problem with many challenges for the chemical sciences
David P. Krabbenhoft
2004, Book chapter, Water and sustainable development: Opportunities for the chemical sciences: A workshop report to the chemical sciences roundtable
No abstract available. ...
Lessons learned about metals in the estuary: The importance of long-term clam accumulation data
C. L. Brown, Samuel N. Luoma, Francis Parchaso, Janet K. Thompson
2004, Book chapter, The pulse of the estuary: Monitoring and managing water quality in the San Francisco estuary
No abstract available....
Geochemistry of coastal tarbells in southern California: A tribute to I.R. Kaplan
Keith A. Kvenvolden, Frances D. Hostettler
R.J. Hill, J. Leventhal, Zeev Aizenshtat, Mary Jo Baedecker, George E. Claypool, Robert P. Eganhouse, editor(s)
2004, Book chapter, Geochemical investigations in earth and space science: A tribute to Isaac R. Kaplan
No abstract available. ...
Evaluating remedial alternatives for the Alamosa River and Wightman Fork, near Summitville Mine, Colorado: Application of a reactive transport model to low- and high-flow simulations
J.W. Ball, R.L. Runkel, D. Kirk Nordstrom
2004, Book chapter, Environmental sciences and environmental computing
Reactive-transport processes in Wightman Fork and the Alamosa River downstream from the SummitvilleMine, south-central Colorado, were simulated at low and high flow using the OTEQ reactive-transport model.The simulations were calibrated using data from synoptic studies conducted during October 1998 and June1999. Discharge over the 30-km reach from just below the...
Aggregation: Physical aspects
John R. Nimmo
2004, Book chapter, Encyclopedia of soils in the environment
No abstract available. ...
