Reconnaissance-level assessment of water and bottom-sediment quality, including pesticides and mercury, in Yankton Sioux Tribe wetlands, Charles Mix County, South Dakota, June-July 2005
Bryan D. Schaap, Roy C. Bartholomay
2006, Scientific Investigations Report 2006-5132
During June and July 2005, water and bottom-sediment samples were collected from selected Yankton Sioux Tribe wetlands within the historic Reservation area of eastern Charles Mix County as part of a reconnaissance-level assessment by the U.S. Geological Survey and Yankton Sioux Tribe. The water samples were analyzed for pesticides and...
Occurrence of trihalomethanes in the nation's ground water and drinking-water supply wells, 1985-2002
Bryan D. Schaap, John S. Zogorski
2006, Scientific Investigations Report 2006-5068
This report describes the occurrence of trihalomethanes (THMs) in the Nation's ground water and drinking-water supply wells based on analysis of 5,642 samples of untreated ground water and source water collected or compiled during 1985-2002 by the U.S. Geological Survey National Water-Quality Assessment (NAWQA) Program. THMs are a group of...
Fish communities and related environmental conditions of the lower Boise River, southwestern Idaho, 1974-2004
Dorene E. MacCoy
2006, Scientific Investigations Report 2006-5111
Within the last century, the lower Boise River has been transformed from a meandering, braided, gravel-bed river that supported large runs of salmon to a channelized, regulated, urban river that provides flood control and irrigation water to more than 1,200 square miles of land. An understanding of the current status...
Pesticide toxicity index for freshwater aquatic organisms, 2nd edition
Mark D. Munn, Robert J. Gilliom, Patrick W. Moran, Lisa H. Nowell
2006, Scientific Investigations Report 2006-5148
The U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program is designed to assess current water-quality conditions, changes in water quality over time, and the effects of natural and human factors on water quality for the Nation's streams and ground-water resources. For streams, one of the most difficult parts of the...
1976 Big Thompson flood, Colorado
R. D. Jarrett (compiler), S.J. Vandas
2006, General Information Product 35
In the early evening of July 31, 1976, a large stationary thunderstorm released as much as 7.5 inches of rainfall in about an hour (about 12 inches in a few hours) in the upper reaches of the Big Thompson River drainage. This large amount of rainfall in such a short...
Scoping of flood hazard mapping needs for Coos County, New Hampshire
Robert H. Flynn
2006, Open-File Report 2006-1200
This report was prepared by the U.S. Geological Survey (USGS) New Hampshire/ Vermont Water Science Center for scoping of flood-hazard mapping needs for Coos County, New Hampshire, under Federal Emergency Management Agency (FEMA) Inter-Agency agreement Number HSFE01-05X-0018. One of the priorities for FEMA, Region 1, is to develop updated Digital...
Ground-water movement and water quality in Lake Point, Tooele County, Utah, 1999-2003
T.A. Kenney, S.J. Wright, Bernard J. Stolp
2006, Scientific Investigations Report 2006-5124
Water-level and water-quality data in Lake Point, Tooele County, Utah, were collected during August 1999 through August 2003. Water levels in Lake Point generally declined about 1 to 2 feet from July 2001 to July 2003, likely because of less-than-average precipitation. Ground water generally flows in two directions from the...
Drought of 1998-2002: impacts on Florida's hydrology and landscape
Richard Jay Verdi, Stewart A. Tomlinson, Richard L. Marella
2006, Circular 1295
Lower than normal precipitation caused a severe statewide drought in Florida from 1998 to 2002. Based on precipitation and streamflow records dating to the early 1900s, the drought was one of the worst ever to affect the State. In terms of severity, this drought was comparable to the drought of...
Simulation of proposed increases in ground-water withdrawals on the Atlantic City 800-foot sand, New Jersey Coastal Plain
Daryll A. Pope
2006, Scientific Investigations Report 2006-5114
The confined Atlantic City 800-foot sand and the unconfined Kirkwood-Cohansey aquifer system (surficial aquifer) are major sources of water for southeastern New Jersey. Because of recent concerns about streamflow depletion resulting from ground-water withdrawals and the potential ecological effects on stream habitat in the area, the focus on future withdrawals...
Geology and total petroleum systems of the Gulf of Guinea province of West Africa
Michael E. Brownfield, Ronald R. Charpentier
2006, Bulletin 2207-C
The U.S. Geological Survey (USGS) assessed the potential for undiscovered conventional oil and gas resources in the Gulf of Guinea Province, west-central Africa, as part of its World Petroleum Assessment 2000. The USGS estimated a mean of 1,004 million barrels of conventional undiscovered oil, 10,071 billion cubic feet of gas,...
Regional evaluation of the hydrogeologic framework, hydraulic properties, and chemical characteristics of the intermediate aquifer system underlying southern west-central Florida
Lari A. Knochenmus
2006, Scientific Investigations Report 2006-5013
Three major aquifer systems-the surficial aquifer system, the intermediate aquifer system, and the Floridan aquifer system-are recognized in the approximately 5,100-square-mile southern west-central Florida study area. The principal source of freshwater for all uses is ground water supplied from the three aquifer systems. Ground water from the intermediate aquifer system...
Water resources data, Puerto Rico and the U.S. Virgin Islands, water year 2004
Carlos Figueroa-Alamo, Zaida Aquino, Senen Guzman-Rios, Ana V. Sanchez
2006, Water Data Report PR-04-1
The Caribbean Water Science Center of the U.S. Geological Survey (USGS), in cooperation with local and Federal agencies obtains a large amount of data pertaining to the water resources of the Commonwealth of Puerto Rico and the Territory of the U.S. Virgin Islands each water year. These data, accumulated during...
Geologic map of the Stephens City quadrangle, Clark, Frederick, and Warren Counties, Virginia
D. J. Weary, R. C. Orndorff, W. Aleman-Gonzalez
2006, Open-File Report 2006-1173
The Stephens City 1:24,000-scale quadrangle is one of several quadrangles in Frederick County, Virginia being mapped by geologists from the U.S. Geological Survey in Reston, VA with funding from the National Cooperative Geologic Mapping Program. This work is part of a project being lead by the U.S. Geological Survey Water...
Trends in Streamflow of the San Pedro River, Southeastern Arizona
Blakemore E. Thomas
2006, Fact Sheet 2006-3004
Total annual streamflow of the San Pedro River at Charleston in southeastern Arizona (fig. 1) decreased by about 66 percent from 1913 to 2002 (fig. 2). The San Pedro River is one of the few remaining free-flowing perennial streams in the arid Southwestern United States, and the riparian forest along...
Water resources data, Nevada, water year 2005
Water Resources Division, U.S. Geological Survey
2006, Water Data Report NV-05-1
Determination of canal leakage potential using continuous resistivity profiling techniques, Interstate and Tri-State Canals, western Nebraska and eastern Wyoming, 2004
Lyndsay B. Ball, Wade H. Kress, Gregory V. Steele, James C. Cannia, Michael J. Andersen
2006, Scientific Investigations Report 2006-5032
In the North Platte River Basin, a ground-water model is being developed to evaluate the effectiveness of using water leakage from selected irrigation canal systems to enhance ground-water recharge. The U.S. Geological Survey, in cooperation with the North Platte Natural Resources District, used land-based capacitively coupled and water-borne direct-current continuous...
Potentiometric surface of the Upper Floridan aquifer, west-central Florida, September 2005
A.G. Ortiz
2006, Open-File Report 2006-1128
The Floridan aquifer system consists of the Upper and Lower Floridan aquifers separated by the middle confining unit. The middle confining unit and the Lower Floridan aquifer in west-central Florida generally contain highly mineralized water. The water-bearing units containing freshwater are herein referred to as the Upper Floridan aquifer. The...
Characterization of the hydrology, water chemistry, and aquatic communities of selected springs in the St. Johns River Water Management District, Florida, 2004
G. G. Phelps, Stephen J. Walsh, Robert M. Gerwig, William B. Tate
2006, Open-File Report 2006-1107
The hydrology, water chemistry, and aquatic communities of Silver Springs, De Leon Spring, Gemini Springs, and Green Spring in the St. Johns River Water Management District, Florida, were studied in 2004 to provide a better understanding of each spring and to compile data of potential use in future water-management decisions....
Geohydrology and water chemistry of the Alexander Valley, Sonoma County, California
Loren F. Metzger, Christopher D. Farrar, Kathryn M. Koczot, Eric G. Reichard
2006, Scientific Investigations Report 2006-5115
This study of the geohydrology and water chemistry of the Alexander Valley, California, was done to provide an improved scientific basis for addressing emerging water-management issues, including potential increases in water demand and changes in flows in the Russian River. The study tasks included (1) evaluation of existing geohydrological, geophysical,...
Shallow-landslide hazard map of Seattle, Washington
Edwin L. Harp, John A. Michael, William T. Laprade
2006, Open-File Report 2006-1139
Landslides, particularly debris flows, have long been a significant cause of damage and destruction to people and property in the Puget Sound region. Following the years of 1996 and 1997, the Federal Emergency Management Agency (FEMA) designated Seattle as a 'Project Impact' city with the goal of encouraging the city...
Potentiometric surface of the Upper Floridan aquifer, west-central Florida, May 2005
A.G. Ortiz, R.A. Blanchard
2006, Open-File Report 2006-1009
The Floridan aquifer system consists of the Upper and Lower Floridan aquifers separated by the middle confining unit. The middle confining unit and the Lower Floridan aquifer in west-central Florida generally contain highly mineralized water. The water-bearing units containing freshwater are herein referred to as the Upper Floridan aquifer. The...
Compilation of Regional Ground-Water Divides for Principal Aquifers Corresponding to the Great Lakes Basin, United States
R. A. Sheets, L.A. Simonson
2006, Scientific Investigations Report 2006-5102
A compilation of regional ground-water divides for the five principal aquifers corresponding to the Great Lakes Basin within the United States is presented. The principal aquifers (or aquifer systems) are the Cambrian-Ordovician aquifer system, Silurian-Devonian aquifers, Mississippian aquifers, Pennsylvanian aquifers, and the surficial aquifer system. The regional ground-water divides mark...
Sensitivity of potential evapotranspiration and simulated flow to varying meteorological inputs, Salt Creek watershed, DuPage County, Illinois
David E. Whitbeck
2006, Open-File Report 2005-1430
The Lamoreux Potential Evapotranspiration (LXPET) Program computes potential evapotranspiration (PET) using inputs from four different meteorological sources: temperature, dewpoint, wind speed, and solar radiation. PET and the same four meteorological inputs are used with precipitation data in the Hydrological Simulation Program-Fortran (HSPF) to simulate streamflow in the Salt Creek watershed,...
Concentrations, fluxes, and yields of nitrogen, phosphorus, and suspended sediment in the Illinois River basin, 1996-2000
Paul J. Terrio
2006, Scientific Investigations Report 2006-5078
Concentrations, spatial and temporal variations, and fluxes of nitrogen, phosphorus, and suspended sediment were determined for 16 streams in the Illinois River Basin, Illinois from October 1996 through September 2000. Water samples were collected through the National Water-Quality Assessment's Lower Illinois River Basin (LIRB) and Upper Illinois River Basin (UIRB)...
Hydrologic requirements of and consumptive ground-water use by riparian vegetation along the San Pedro River, Arizona
James M. Leenhouts, Juliet C. Stromberg, Russell L. Scott, Sharon J. Lite, Mark Dixon, Tyler Rychener, Elizabeth Makings, David G. Williams, David C. Goodrich, William L. Cable, Lainie R. Levick, Roberta McGuire, Rico M. Gazal, Enrico A. Yepez, Patrick Ellsworth, Travis E. Huxman
2006, Scientific Investigations Report 2005-5163
This study is a coordinated effort by the U.S. Geological Survey (USGS), the U.S. Department of Agriculture, Agricultural Research Service (USDA ARS), and Arizona State University, with assistance from the U.S. Army Corps of Engineers, the University of Wyoming, and the University of Arizona. The specific objectives of the study...
