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A Preliminary Investigation of The Structure of Southern Yucca Flat, Massachusetts Mountain, and CP Basin, Nevada Test Site, Nevada, Based on Geophysical Modeling
Geoffrey A. Phelps, Leigh Justet, Barry C. Moring, Carter W. Roberts
2006, Open-File Report 2005-1367
New gravity and magnetic data collected in the vicinity of Massachusetts Mountain and CP basin (Nevada Test Site, NV) provides a more complex view of the structural relationships present in the vicinity of CP basin than previous geologic models, helps define the position and extent of structures in southern Yucca...
Water resources data--North Dakota, water year 2005, Volume 2. Ground water
S.M. Robinson, D.R. Rosenkranz
2006, Water Data Report ND-05-2
Water-resources data for the 2005 water year for North Dakota consists of records of discharge, stage, and water quality for streams; contents, stage, and water quality for lakes and reservoirs; and water levels and water quality for ground-water wells. Volume 2 contains water-level records for 115 ground-water wells and water-quality records...
Water Resources Data for Illinois - Water Year 2005 (Includes Historical Data)
J.K. LaTour, E.A. Weldon, D.H. Dupre, T.M. Halfar
2006, Water Data Report IL-05-1
This annual Water-Data Report for Illinois contains current water year (Oct. 1, 2004, to Sept. 30, 2005) and historical data of discharge, stage, water quality and biology of streams; stage of lakes and reservoirs; levels and quality of ground water; and records of precipitation, air temperature, dew point, solar radiation,...
A cyclostratigraphic and borehole-geophysical approach to development of a three-dimensional conceptual hydrogeologic model of the karstic Biscayne aquifer, southeastern Florida
Kevin J. Cunningham, Michael A. Wacker, Edward Robinson, Joann F. Dixon, G. Lynn Wingard
2006, Scientific Investigations Report 2005-5235
A fundamental problem in the simulation of karst ground-water flow and solute transport is how best to represent aquifer heterogeneity as defined by the spatial distribution of porosity, permeability, and storage. Combined analyses of cyclostratigraphy, including lithofacies and depositional environments, and borehole-geophysical logs, has improved the conceptualization of porosity, permeability, and...
Predicting the vulnerability of streams to episodic acidification and potential effects on aquatic biota in Shenandoah National Park, Virginia
Karen C. Rice, Frank A. Deviney, George M. Hornberger, James R. Webb
2006, Scientific Investigations Report 2005-5259
Acidic deposition is one of the most serious environmental problems affecting Shenandoah National Park in north-central Virginia. The park is the third most contaminated park in the National Park System because of the deposition of acid rain. Acid rain affects headwater streams in the park by temporarily reducing the acid-neutralizing...
Geology, hydrology, and water quality of the glacial drift aquifer in the vicinity of the Nelson landfill near Yorkville, Illinois
Robert T. Kay
2006, Open-File Report 2006-1045
The geologic and hydrologic characteristics of the sand-and-gravel deposits that compose the glacial drift aquifer in the vicinity of the Nelson Landfill site in Yorkville, Illinois indicate that the aquifer could be developed as a source of public water supply. The geology of these deposits within the Newark Bedrock Valley...
Calibration of PS09, PS10, and PS11 trans-Alaska pipeline system strong-motion instruments, with acceleration, velocity, and displacement records of the Denali fault earthquake, 03 November 2002
John R. Evans, E. Gray Jensen, Russell Sell, Christopher D. Stephens, Douglas J. Nyman, Robert C. Hamilton, William C. Hager
2006, Open-File Report 2006-1028
In September, 2003, the Alyeska Pipeline Service Company (APSC) and the U.S. Geological Survey (USGS) embarked on a joint effort to extract, test, and calibrate the accelerometers, amplifiers, and bandpass filters from the earthquake monitoring systems (EMS) at Pump Stations 09, 10, and 11 of the Trans-Alaska Pipeline System (TAPS)....
Low-flow analysis and selected flow statistics representative of 1930-2002 for streamflow-gaging stations in or near West Virginia
Jeffrey B. Wiley
2006, Scientific Investigations Report 2006-5002
Five time periods between 1930 and 2002 are identified as having distinct patterns of annual minimum daily mean flows (minimum flows). Average minimum flows increased around 1970 at many streamflow-gaging stations in West Virginia. Before 1930, however, there might have been a period of minimum flows greater than any period...
Oregon geology — Parent of the soil, foundation for the vine
Ray Wells
2006, Open-File Report 2006-1069
This presentation describes USGS geologic mapping in western Oregon, geologic map products, a thumbnail sketch of geologic history, a discussion of new mapping in progress in northwest Oregon, a tour of northwest Oregon geologic units, their relation to new American Viticultural Areas, and online sources of information....
Impacts on water quality and biota from natural acid rock drainage in Colorado's Lake Creek watershed
D.A. Bird, Matthew A. Sares, Greg A. Policky, Travis S. Schmidt, Stan E. Church
2006, Conference Paper, Proceedings from the Seventh International Conference on Acid Rock Drainage
Colorado's Lake Creek watershed hosts natural acid rock drainage that significantly impacts surface water, streambed sediment, and aquatic life. The source of the ARD is a group of iron-rich springs that emerge from intensely hydrothermally altered, unexploited, low-grade porphyry copper mineralization in the Grizzly Peak Caldera. Source water chemistry includes...
Source parameters of microearthquakes at Mount St Helens (USA)
Giuseppina Tusa, Alfonso Brancato, Stefano Gresta, Stephen D. Malone
2006, Geophysical Journal International (166) 1193-1223
We estimate the source parameters for a selection of microearthquakes that occurred at Mount St Helens in the period 1995–1998. Excluding the activity of 2004 September, this time period includes the most intense episode of earthquake activity since the last dome-building eruption in 1986 October. 200 seismograms were processed to...
Endocrine disrupting chemicals research program of the U.S. Environmental Protection Agency: summary of a peer-review report
Anna K. Harding, George P. Daston, Glen R. Boyd, George W. Lucier, Stephen H. Safe, Juarine Stewart, Donald E. Tillitt, Glen Van Der Kraak
2006, Environmental Health Perspectives (114) 1276-1282
At the request of the U.S. Environmental Protection Agency (EPA) Office of Research and Development, a subcommittee of the Board of Scientific Counselors Executive Committee conducted an independent and open peer review of the Endocrine Disrupting Chemicals Research Program (EDC Research Program) of the U.S. EPA. The subcommittee was charged...
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...
Ground-water-quality data in Pennsylvania: A compilation of computerized [electronic] databases, 1979-2004
Dennis J. Low, Douglas C. Chichester
2006, Data Series 150
This study, by the U.S. Geological Survey (USGS) in cooperation with the Pennsylvania Department of Environmental Protection (PADEP), provides a compilation of ground-water-quality data for a 25-year period (January 1, 1979, through August 11, 2004) based on water samples from wells. The data are from eight source agencies唯orough of Carroll...
Digital database of the geologic map of the Island of Hawai'i
Frank A. Trusdell, Edward W. Wolfe, Jean Morris
2006, Data Series 144
This online publication (DS 144) provides the digital database for the printed map by Edward W. Wolfe and Jean Morris (I-2524-A; 1996). This digital database contains all the information used to publish U.S. Geological Survey Geologic Investigations Series I-2524-A (available only in paper form; see http://pubs.er.usgs.gov/pubs/i/i2524A). The database...