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State of the watershed: Water quality of Boulder Creek, Colorado

Sheila F. Murphy

2006, Circular 1284

No abstract available....

Helping solve Georgia's water problems - the USGS Cooperative Water Program

John S. Clarke

2006, Fact Sheet 2006-3032

The U.S. Geological Survey (USGS) addresses a wide variety of water issues in the State of Georgia through the Cooperative Water Program (CWP). As the primary Federal science agency for water-resource information, the USGS monitors the quantity and quality of water in the Nation's rivers and aquifers, assesses the sources...

USGS science in Menlo Park -- a science strategy for the U.S. Geological Survey Menlo Park Science Center, 2005-2015

Thomas M. Brocher, Michael D. Carr, David L. Halsing, David A. John, Victoria E. Langenheim, Margaret T. Mangan, Mark C. Marvin-DiPasquale, John Y. Takekawa, Claire R. Tiedeman

2006, Circular 1290

In the spring of 2004, the U.S. Geological Survey (USGS) Menlo Park Center Council commissioned an interdisciplinary working group to develop a forward-looking science strategy for the USGS Menlo Park Science Center in California (hereafter also referred to as "the Center"). The Center has been the flagship research center for...

The influence of hydrous Mn–Zn oxides on diel cycling of Zn in an alkaline stream draining abandoned mine lands

Christopher L. Shope, Ying Xie, Christopher H. Gammons

2006, Applied Geochemistry (21) 476-491

Many mining-impacted streams in western Montana with pH near or above neutrality display large (up to 500%) diel cycles in dissolved Zn concentrations. The streams in question typically contain boulders coated with a thin biofilm, as well as black mineral crusts composed of hydrous Mn–Zn oxides. Laboratory mesocosm experiments simulating...

Analysis of sensitivity of simulated recharge to selected parameters for seven watersheds modeled using the precipitation-runoff modeling system

D. Matthew Ely

2006, Scientific Investigations Report 2006-5041

Recharge is a vital component of the ground-water budget and methods for estimating it range from extremely complex to relatively simple. The most commonly used techniques, however, are limited by the scale of application. One method that can be used to estimate ground-water recharge includes process-based models that compute distributed...

Eutrophication of freshwater and marine ecosystems

Val H. Smith, Samantha B. Joye, Robert W. Howarth

2006, Limnology and Oceanography (51) 351-355

Initial understanding of the links between nutrients and aquatic productivity originated in Europe in the early 1900s, and our knowledge base has expanded greatly during the past 40 yr. This explosion of eutrophication-related research has made it unequivocally clear that a comprehensive strategy to prevent excessive amounts of nitrogen and...

Environmental effects of historical mining in the Boulder River watershed, southwestern Montana

David Nimick

2006, Fact Sheet 2005-3148

The U.S. Geological Survey recently completed an environmental study of historical mining in the Boulder River watershed, Montana, using the watershed approach. Results of the study have been used by State and Federal agencies to plan and implement cleanup. The watershed approach is based on the premise that contaminated sites...

Response to comment on “Persistence of pharmaceutical compounds and other organic wastewater contaminants in a conventional drinking-water-treatment plant”

Paul E. Stackelberg, Edward T. Furlong, Michael T. Meyer, Steven D. Zaugg, Alden K. Henderson, Dori B. Reissman

2006, Science of the Total Environment (354) 93-97

The U.S. Geological Survey (USGS) and the Centers for Disease Control thank Dr. Till for her comments concerning our research (Till, 2005) and welcome the opportunity to respond. The primary objective of our study was to evaluate the potential for organic wastewater-related contaminants (OWCs), including pharmaceuticals, to survive a...

The significance of ground water to the accumulation of iron and manganese in the sediments of two hydrologically distinct lakes in north‐central Minnesota: A geological perspective

Walter E. Dean, Brian Neff, Donald O. Rosenberry, Thomas C. Winter, Renee S. Parkhurst

2006, Ground Water (41) 951-963

Williams and Shingobee lakes are at opposite ends of the local ground water flow system in the Shingobee River Headwaters Area (SRHA) in north‐central Minnesota. Williams Lake, situated near the highest point in the flow system, has no surface inlet or outlet, and ground water and precipitation are the only...

A continuous 250,000 yr record of oxygen and carbon isotopes in ostracode and bulk-sediment carbonate from Bear Lake, Utah-Idaho

Jordon Bright, Darrell Kaufman, Richard Forester, Walter E. Dean

2006, Quaternary Science Reviews (25) 2258-2270

Oxygen and carbon isotopes from a continuous, 120-m-long, carbonate-rich core from Bear Lake, Utah-Idaho, document dramatic fluctuations in the hydrologic budget of the lake over the last 250,000 yr. Isotopic analyses of bulk sediment samples capture millennial-scale variability. Ostracode calcite was analyzed from 78...

Research plan and preliminary results: A field research site for emerging contaminants in Iowa

Douglas J. Schnoebelen, Dana W. Kolpin, Larry B. Barber, Edward T. Furlong, Michael Meyer, M. Skopec

2006, Journal of the Iowa Academy of Science (113) 1-9

Research has recently documented the prevalence of a wide variety of pharmaceuticals and other emerging contaminants (ECs) in streams across the United States. Wastewater treatment plants (WWTPs) have been found to be an important source and collection point of ECs to streams as many ECs are incompletely removed during treatment....

Watershed characteristics and pre-restoration surface-water hydrology of Minebank Run, Baltimore County, Maryland, water years 2002-04

Edward J. Doheny, Roger J. Starsoneck, Elise A. Striz, Paul M. Mayer

2006, Scientific Investigations Report 2006-5179

Stream restoration efforts have been ongoing in Maryland since the early 1990s. Physical stream restoration often involves replacement of lost sediments to elevate degraded streambeds, re-establishment of riffle-pool sequences along the channel profile, planting vegetation in riparian zones, and re-constructing channel banks, point bars, flood plains, and stream-meanders. The primary...

Heat as a ground water tracer at the Russian River RBF facility, Sonoma County, California

Jim Constantz, Grace W. Su, Christine Hatch

2006, Book chapter, Riverbank filtration hydrology

Temperature is routinely collected as a water quality parameter, but only recently utilized as an environmental tracer of stream exchanges with ground water (Stonestrom and Constantz, 2003). In this paper, water levels and seasonal temperatures were used to estimate streambed hydraulic conductivities and water fluxes. Temperatures and water levels...

Eutrophication

James E. Cloern, T. Krantz, J.E. Duffy

2006, Book chapter, Encyclopedia of earth

No abstract available. ...

Sampling and analytical methods

Eurybiades Busenberg, L.N. Plummer, Peter G. Cook, D. K. Solomon, L. F Han, H. Oster