Ferricrete, manganocrete, and bog iron occurrences with selected sedge bogs and active iron bogs and springs in the upper Animas River watershed, San Juan County, Colorado
Douglas B. Yager, Stan E. Church, Philip L. Verplanck, Laurie Wirt
2003, Miscellaneous Field Studies Map 2406
During 1996 to 2000, the Bureau of Land Management, National Park Service, Environmental Protection Agency, United States Department of Agriculture (USDA) Forest Service, and the U.S. Geological Survey (USGS) developed a coordinated...
Pharmaceuticals, hormones, personal-care products, and other organic wastewater contaminants in water resources: Recent research activities of the U.S. Geological Survey's toxic substances hydrology program
Michael J. Focazio, Dana W. Kolpin, Herbert T. Buxton
2003, Geohealth News (2) 3-7
Recent decades have brought increasing concerns for potential contamination of water resources that could inadvertently result during production, use, and disposal of the numerous chemicals offering improvements in industry, agriculture, medical treatment, and even common household products. Increasing knowledge of the environmental occurrence or toxicological behavior of these contaminants from...
Water quality data at selected sites in the Mississippi Valley-type Zn-Pb ore district of upper Silesia, Poland, 1995-97
Laurie Wirt, Jacek Motyka, David Leach, Maria Sass-Gustkiewicz, Marek Szuwarzynski, Zbigniew Adamczyk, Paul Briggs, Al Meiers
2003, Open-File Report 2001-283
The water chemistry of aquifers and streams in the Upper Silesia Ore District, Poland are affected by their proximity to zinc, lead, and silver ores and by ongoing mining activities that date back to the 11th century. This report presents hydrologic and water-quality data collected as part of a collaborative...
Are veterinary medicines causing environmental risks?
Alistair Boxall, Dana W. Kolpin, Bent Halling-Sorensen, Johannes Tolls
2003, Environmental Science & Technology (37) 286A-294A
Too little is known about the effects of these compounds, their metabolites, and degradation products....
Principal facts for gravity stations in the Dry Valley area, west-central Nevada and east-central California
Elizabeth A. Sanger, David A. Ponce
2003, Open-File Report 2003-6
In June, 2002, the U.S. Geological Survey (USGS) established 143 new gravity stations and 12 new rock samples in the Dry Valley area, 30 miles north of Reno, Nevada, on the California - Nevada border (see fig. 1). This study reports on gravity, magnetic, and physical property data intended for...
Case study for delineating a contributing area to a well in a fractured siliciclastic-bedrock aquifer near Lansdale, Pennsylvania
Gary J. Barton, Dennis W. Risser, Daniel G. Galeone, Daniel J. Goode
2003, Water-Resources Investigations Report 2002-4271
A supply well used by the North Penn Water Authority near Lansdale, Pa., was selected as a case study for delineating a contributing area in a fractured siliciclastic-bedrock aquifer. The study emphasized the importance of refining the understanding of factors that control ground-water movement to the well by conducting (1)...
Hydrologic properties and ground-water flow systems of the Paleozoic rocks in the upper Colorado River basin in Arizona, Colorado, New Mexico, Utah, and Wyoming, excluding the San Juan Basin
Arthur L. Geldon
2003, Professional Paper 1411-B
The hydrologic properties and ground-water flow systems of Paleozoic sedimentary rocks in the Upper Colorado River Basin were investigated under the Regional Aquifer-System Analysis (RASA) program of the U.S. Geological Survey in anticipation of the development of water supplies from bedrock aquifers to fulfill the region's growing water demands. The...
Irrigation-induced contamination of water, sediment, and biota in the western United States-synthesis of data from the National Irrigation Water Quality Program
Ralph L. Seiler, Joseph P. Skorupa, David L. Naftz, B. Thomas Nolan
2003, Professional Paper 1655
In October 1985 the U.S. Department of the Interior (DOI), through the National Irrigation Water Quality Program (NIWQP), began a series of field investigations at 26 areas in the Western United States to determine whether irrigation drainage has had harmful effects on fish, wildlife, and humans or has reduced beneficial...
Hydrogeology Journal in 2002
Perry Olcott, Robert Schneider, Clifford Voss
2003, Hydrogeology Journal (11) 1-2
Hydrogeology Journal appeared in six issues containing a total of 674 pages and 47 major articles, including 22 Papers and 24 Reports, as well as Technical Notes and Book Reviews. The final issue of 2002 also contained the annual volume index. Hydrogeology Journal (HJ) is an...
Response to comment on "Pharmaceuticals, hormones, and other organic wastewater contaminants in U.S. streams, 1999-2000: A national reconnaissance"
Dana W. Kolpin, Edward T. Furlong, Michael T. Meyer, E. Michael Thurman, Steven D. Zaugg, Larry B. Barber, Herbert T. Buxton
2003, Environmental Science & Technology (37) 1054-1054
Till (1) raised concerns that several aspects of how we handled the data in our study (2) may have caused unintended bias. First, Till (1) considers the “median detectable concentrations” listed in Table 1 (2) to be misleading because “higher median concentrations than is actually the case” were suggested. We...
Arsenic thermodynamic data and environmental geochemistry
D. Kirk Nordstrom, D. Archer
A. H. Welch, Kenneth G. Stollenwerk, editor(s)
2003, Book chapter, Arsenic in ground water: Geochemistry and occurrence
No abstract available. ...
Potential for increased mercury accumulation in the estuary food web
Jay A. Davis, Donald Yee, Joshua N. Collins, Steven E. Schwarzbach, Samuel N. Luoma
2003, San Francisco Estuary and Watershed Science (1)
Present concentrations of mercury in large portions of San Francisco Bay (Bay), the Sacramento-San Joaquin Delta (Delta), and the Sacramento and San Joaquin rivers are high enough to warrant concern for the health of humans and wildlife. Large scale tidal wetland restoration is currently under consideration as a means of...
Interseasonal covariability of Sierra Nevada streamflow and San Francisco Bay salinity
Michael D. Dettinger, Daniel R. Cayan
2003, Journal of Hydrology (277) 164-181
The ecosystems of the San Francisco Bay estuary are influenced by the salinity of its waters, which in turn depends on flushing by freshwater inflows from the western slopes of the Sierra Nevada. Estimates of full-natural flows in eight major rivers that flush the Bay are analyzed here by extended...
A special issue devoted to gold deposits in northern Nevada: Part 2. Carlin-type Deposits
Albert H. Hofstra, David A. John, Ted G. Theodore
2003, Economic Geology (98) 1063-1067
This is the second of two special issues of Economic Geology devoted to gold deposits in northern Nevada. Readers interested in a general overview of these deposits, their economic significance, their context within the tectonic evolution of the region, and synoptic references on each gold deposit type are directed to...
Extreme acid mine drainage from a pyritic massive sulfide deposit, the Iron Mountain end-member
Charles N. Alpers, D. Kirk Nordstrom, J. Spitzley
2003, Book chapter, Environmental aspects of mine wastes
No abstract available....
Stable isotope applications in hydrologic studies
Carol Kendall, D.H. Doctor
2003, Book chapter, Treatise on geochemistry
No abstract available....
Geochemistry of saline lakes
B.F. Jones, D.M. Deocampo
2003, Book chapter, Treatise on geochemistry
No abstract available....
Use of field-scale experiments and reactive transport modeling to evaluate remediation alternatives in streams affected by acid mine drainage
B. A. Kimball, R.L. Runkel, Katherine Walton-Day
J.L. Jambor, D.W Blowes, A. Ritchie, editor(s)
2003, Book chapter, Environmental aspects of mine wastes
No abstract available....
Arsenic in southeastern Michigan
Allan Kolker, Sheridan K. Haack, William F. Cannon, D.B. Westjohn, M.-J. Kim, Laurel G. Woodruff
A. H. Welch, Kenneth G. Stollenwerk, editor(s)
2003, Book chapter, Arsenic in ground water
Arsenic levels exceeding 10 μg/L are present in hundreds of private supply wells distributed over ten counties in eastern and southeastern Michigan. Most of these wells are completed in the Mississippian Marshall Sandstone, the principal bedrock aquifer in the region, or in Pleistocene glacial or Pennsylvanian bedrock aquifers. About 70%...
Effects of microbiological and geochemical interactions in mine drainage
D. Kirk Nordstrom
J.L. Jambor, editor(s)
2003, Book chapter, Environmental aspects of mine wastes
No abstract available. ...
Deep fluids in the continents: I. Sedimentary basins
Yousif K. Kharaka, J.S. Hanor
Heinrich Holland, K. Turekian, editor(s)
2003, Book chapter, Treatise on geochemistry
No abstract available....
In situ arsenic remediation in a fractured, alkaline aquifer
A. H. Welch, Kenneth G. Stollenwerk, D. K. Maurer, Lawrence S. Feinson
A. H. Welch, Kenneth G. Stollenwerk, editor(s)
2003, Book chapter, Arsenic in ground water
No abstract available. ...
The groundwater geochemistry of waste disposal facilities
P.L. Bjerg, H.-J. Albrechtsen, P. Kjeldsen, T. Christensen, Isabelle M. Cozzarelli
B.S. Lollar, editor(s)
2003, Book chapter, Treatise on geochemistry
No abstract available....
Mass balance approach to interpreting weathering reactions in watershed systems
O.P. Bricker, Blair F. Jones, C.J. Bowser
J.I. Drever, editor(s)
2003, Book chapter, Treatise on geochemistry
No abstract available....
Occurrence of arsenic in ground water of the Middle Rio Grande Basin, central New Mexico
L.N. Plummer
A. H. Welch, Kenneth G. Stollenwerk, editor(s)
2003, Book chapter, Arsenic in ground water
Chemical data from more than 400 ground-water sites in the Middle Rio Grande Basin of central New Mexico indicate that arsenic concentrations exceed the U.S. Environmental Protection Agency drinking-water standard of 10 micrograms per liter across broad areas of the Santa Fe Group aquifer system, which is currently the almost...
