Simulation of ground-water flow to assess geohydrologic factors and their effect on source-water areas for bedrock wells in Connecticut
J. Jeffrey Starn, Janet Radway Stone
2005, Scientific Investigations Report 2004-5132
Generic ground-water-flow simulation models show that geohydrologic factors?fracture types, fracture geometry, and surficial materials?affect the size, shape, and location of source-water areas for bedrock wells. In this study, conducted by the U.S. Geological Survey in cooperation with the Connecticut Department of Public Health, ground-water flow was simulated to bedrock wells...
Physical and chemical characteristics of Knowles, Forgotten, and Moqui Canyons, and effects of recreational use on water quality, Lake Powell, Arizona and Utah
Robert J. Hart, Howard E. Taylor, Ronald C. Antweiler, Greg G. Fisk, G.M. Anderson, D.A. Roth, Marilyn E. Flynn, D.B. Peart, Margot Truini, L. B. Barber
2005, Scientific Investigations Report 2004-5120
Side canyons of Lake Powell are the most popular recreation areas of the Glen Canyon National Recreation Area in Arizona and Utah. There are more than 90 side canyons that are tributaries to the main lake body of Lake Powell. Near Bullfrog and Halls Crossing marinas in Utah, visitors frequent...
Descriptions of the Animas River-Cement Creek confluence and mixing zone near Silverton, Colorado, during the late summers of 1996 and 1997
Laurence E. Schemel, Marisa H. Cox
2005, Open-File Report 2005-1064
Acidic waters from Cement Creek discharge into the circum-neutral Animas River in a high-elevation region of the San Juan Mountains near Silverton, Colorado. Cement Creek is acidic and enriched in metals and sulfate because it is fed by discharges from abandoned mines and natural mineral deposits. Mixing with the Animas...
Reply to “Commentary: Assessment of past infiltration fluxes through Yucca Mountain on the basis of the secondary mineral record—Is it a viable methodology?” by Y.V. Dublyansky and S.Z. Smirnov
Brian D. Marshall, Leonid A. Neymark, Zell E. Peterman
2005, Journal of Contaminant Hydrology (77) 219-224
Many of the comments by Dublyansky and Smirnov (2005) on Marshall et al. (2003) reflect a longstanding debate over the origin of secondary calcite and opal deposits found in cavities and on fracture surfaces at Yucca Mountain, Nevada, site of a proposed high-level nuclear waste repository (US Department of Energy,...
Landslide hazards at La Conchita, California
Randall W. Jibson
2005, Open-File Report 2005-1067
Geological, hydrological, and biological issues related to the proposed development of a park at the confluence of the Los Angeles River and the Arroyo Seco, Los Angeles County, California
Michael Land, Peter C. Trenham, Daniel J. Ponti, Eric G. Reichard, John C. Tinsley III, Jonathan A. Warrick, Robert W. Meyer
2005, Scientific Investigations Report 2004-5296
A new park is being considered for the confluence of the Los Angeles River and the Arroyo Seco in Los Angeles County, California. Components of the park development may include creation of a temporary lake on the Los Angeles River, removal of channel lining along part of the Arroyo Seco,...
Geologic map compilation of the Upper Seco Creek Area, Medina and Uvalde Counties, south-central Texas
Charles D. Blome, Jason R. Faith, Edward W. Collins, Diana E. Pedraza, Kyle E. Murray
2005, Open-File Report 2004-1430
Geology and preliminary hydrogeologic characterization of the cell-house site, Berlin, New Hampshire, 2003-04
James R. Degnan, Stewart F. Clark, Philip T. Harte, Thomas J. Mack
2005, Scientific Investigations Report 2004-5282
At the cell-house site, thin, generally less than 20-foot thick overburden, consisting of till and demolition materials, overlies fractured crystalline bedrock. Bedrock at the site consists of gneiss with thin discontinuous lenses of chlorite schist and discontinuous tabular pegmatite. Two distinct fracture domains, with principal trends to the west and...
Water resources data, Virginia, water year 2004 volume 2. Ground-water-level and ground-water-quality records
Roger K. White, Eugene D. Powell, Joel R. Guyer, Joseph A. Owens
2005, Water Data Report VA-04-2
Water-resources data for the 2004 water year for Virginia consist of records of water levels and water quality of ground-water wells. This report (Volume 2. Ground-Water-Level and Ground-Water-Quality Records) contains water levels at 346 observation wells and water quality at 40 wells. Locations of these wells are shown on figures...
Virginia aeromagnetic and gravity maps and data: A web site for distribution of data
Stephen L. Snyder
2005, Open-File Report 2005-1052
No abstract available....
Evaluation of drainage-area ratio method used to estimate streamflow for the Red River of the North Basin, North Dakota and Minnesota
Douglas G. Emerson, Aldo V. Vecchia, Ann L. Dahl
2005, Scientific Investigations Report 2005-5017
The drainage-area ratio method commonly is used to estimate streamflow for sites where no streamflow data were collected. To evaluate the validity of the drainage-area ratio method and to determine if an improved method could be developed to estimate streamflow, a multiple-regression technique was used to determine if drainage area,...
Water resources data, Iowa water year 2004, volume 1: surface water and precipitation
Greg M. Nalley, Joseph G. Gorman, Robert D. Goodrich, Von E. Miller, Kevin S. Housel
2005, Water Data Report IA-04-1
This volume of the annual hydrologic data report of Iowa is one of a series of annual reports that document hydrologic data gathered from the U.S. Geological Survey.s surface- and ground-water data-collection networks in each State, Puerto Rico, and the Trust Territories. These records of streamflow, ground-water levels, and quality...
South Carolina aeromagnetic and gravity maps and data: A web site for distribution of data
David L. Daniels
2005, Open-File Report 2005-1022
No abstract available....
Heat wave brings an unprecedented red tide to San Francisco Bay
James E. Cloern, Tara S. Schraga, Cary B. Lopez
2005, Eos, Earth and Space Science News (86) 66-66
An exceptional red tide in San Francisco Bay was observed on 8 September 2004. The red tide had chlorophyll concentrations approaching 200 mg/m3 (Figure 1) in red/purple surface streaks containing high abundances of the dinoflagellate Akashiwo sanguinea. Red tides and harmful algal blooms (HABs) are common features of coastal ecosystems, and their growing...
Water resources data, Iowa, water year 2004, volume 2: ground water and quality of precipitation
G.M. Nalley, S. Michael Linhart, G. R. Littin, V.E. Miller, K.S. Housel
2005, Water Data Report IA-04-2
Water resources data for Iowa for the 2004 water year consists of records of ground water levels and water quality of ground-water wells. This report volume contains water-level records for 163 ground-water observation wells; water-quality data for 147 municipal wells; and precipitation-quality data for 2 precipitation sites....
Summary of hydraulic properties of the Floridan Aquifer system in coastal Georgia and adjacent parts of South Carolina and Florida
John S. Clarke, David C. Leeth, DaVette Taylor-Harris, Jaime A. Painter, James L. Labowski
2005, Scientific Investigations Report 2004-5264
Hydraulic-property data for the Floridan aquifer system and equivalent clastic sediments in a 67-county area of coastal Georgia and adjacent parts of South Carolina and Florida were evaluated to provide data necessary for development of ground-water flow and solute-transport models. Data include transmissivity at 324 wells, storage coefficient at 115...
Initial-phase investigation of multi-dimensional streamflow simulations in the Colorado River, Moab Valley, Grand County, Utah, 2004
Terry A. Kenney
2005, Scientific Investigations Report 2005-5022
A multi-dimensional hydrodynamic model was applied to aid in the assessment of the potential hazard posed to the uranium mill tailings near Moab, Utah, by flooding in the Colorado River as it flows through Moab Valley. Discharge estimates for the 100- and 500-year recurrence interval and for the Probable Maximum...
Effects of decreased ground-water withdrawal on ground-water levels and chloride concentrations in Camden County, Georgia, and ground-water levels in Nassau County, Florida, from September 2001 to May 2003
Michael F. Peck, Keith W. McFadden, David C. Leeth
2005, Scientific Investigations Report 2004-5295
During October 2002, the Durango Paper Company formerly Gillman Paper Company) in St. Marys, Georgia, shut down paper-mill operations; the shutdown resulted in decreased ground-water withdrawal in Camden County by 35.6 million gallons per day. The decrease in withdrawal resulted in water-level rise in wells completed in the Floridan aquifer...
Pond-aquifer flow and water availability in the vicinity of two coastal area seepage ponds, Glynn and Bulloch Counties, Georgia
John S. Clarke, Malek Abu Rumman
2005, Scientific Investigations Report 2004-5260
Pond-aquifer flow and water availability at excavated seepage pond sites in Glynn County and in southern Bulloch County, Georgia, were evaluated to determine their potential as sources of water supply for irrigation. Excavated seepage ponds derive water primarily from ground water seeping into the pond, in a manner similar to...
Geologic shaded relief map of Venezuela
Paul C. Hackley, Franco Urbani, Alex W. Karlsen, Christopher P. Garrity
2005, Open-File Report 2005-1038
No abstract available....
Flow velocity, water temperature, and conductivity at selected locations in Shark River Slough, Everglades National Park, Florida; July 1999 - July 2003
Raymond W. Schaffranek, Ami L. Riscassi
2005, Data Series 110
Flow-velocity, water-temperature, and conductivity data were collected at five locations in Shark River Slough, Everglades National Park (ENP), Florida, from 1999 to 2003. The data were collected as part of the U.S. Geological Survey Priority Ecosystems Science Initiative in support of the Comprehensive Everglades Restoration Plan. This report contains digital...
Fracture trace map and single-well aquifer test results in a carbonate aquifer in Berkeley County, West Virginia
Kurt J. McCoy, Melvin H. Podwysocki, E. Allen Crider, David J. Weary
2005, Open-File Report 2005-1040
These data contain information on the results of single-well aquifer tests, lineament analysis, and a bedrock geologic map compilation for the low-lying carbonate and shale areas of eastern Berkeley County, West Virginia. Efforts have been initiated by management agencies of Berkeley County in cooperation with the U.S. Geological Survey to...
Bioaccumulation of mercury in riverine periphyton
Amanda H. Bell, Barbara C. Scudder
2005, Open-File Report 2004-1446
Simulation of ground-water flow and areas contributing ground water to production wells, Cadillac, Michigan
Christopher J. Hoard, D.B. Westjohn
2005, Open-File Report 2005-1012
Ground water is the primary source of water for domestic, municipal, and industrial use within the northwest section of Michigan's Lower Peninsula. Because of the importance of this resource, numerous communities including the city of Cadillac in Wexford County, Michigan, have begun local well-head protection programs. In these programs, communities...
Preliminary geologic map of the Los Angeles 30' x 60' quadrangle, Southern California
Robert F. complied by Yerkes, Russell H. Campbell, Rachel M. Alvarez, Kelly R. Bovard
2005, Open-File Report 2005-1019
This data set maps and describes the geology of the Los Angeles 30? x 60? quadrangle, southern California. Compilation of the Los Angeles quadrangle is based upon published mapping at scales of 1:12,000 and smaller, unpublished mapping at scales of 1:12,000 and smaller, with reconnaissance mapping by the compilers to...
