Simulated ground-water flow in the Ogallala and Arikaree aquifers, Rosebud Indian Reservation area, South Dakota
Andrew J. Long, Larry D. Putnam, Janet M. Carter
2003, Water-Resources Investigations Report 2003-4043
The Ogallala and Arikaree aquifers are important water resources in the Rosebud Indian Reservation area and are used extensively for irrigation, municipal, and domestic water supplies. Continued or increased withdrawals from the Ogallala and Arikaree aquifers in the Rosebud Indian Reservation area have the potential to affect water levels in...
Hydrogeology and Ground-Water Quality of Brunswick County, North Carolina
Stephen L. Harden, Jason M. Fine, Timothy B. Spruill
2003, Water-Resources Investigations Report 2003-4051
Brunswick County is the southernmost coastal county in North Carolina and lies in the southeastern part of the Coastal Plain physiographic province. In this report, geologic, hydrologic, and chemical data were used to investigate and delineate the hydrogeologic framework and ground-water quality of Brunswick County. The major aquifers and their...
Phosphorus in a ground-water contaminant plume discharging to Ashumet Pond, Cape Cod, Massachusetts, 1999
Timothy D. McCobb, Denis R. LeBlanc, Donald A. Walter, Kathryn M. Hess, Douglas B. Kent, Richard L. Smith
2003, Water-Resources Investigations Report 2002-4306
The discharge of a plume of sewagecontaminated ground water emanating from the Massachusetts Military Reservation to Ashumet Pond on Cape Cod, Massachusetts, has caused concern about excessive loading of nutrients, particularly phosphorus, to the pond. The U.S. Air Force is considering remedial actions to mitigate potentially adverse effects on the...
Geochemistry, geochronology, mineralogy, and geology suggest sources of and controls on mineral systems in the southern Toquima Range, Nye County, Nevada
Daniel R. Shawe, James D. Hoffman, Bruce R. Doe, Eugene E. Foord, Holly J. Stein, Robert A. Ayuso
2003, Miscellaneous Field Studies Map 2327-C
Geochemistry maps showing the distribution and abundance of 18 elements in about 1,400 rock samples, both mineralized and unmineralized, from the southern Toquima Range, Nev., indicate major structural and lithologic controls on mineralization, and suggest sources of the elements. Radiometric age data, lead mineralogy and paragenesis data, and lead-isotope data...
Hydrologic conditions and assessment of water resources in the Turkey Creek watershed, Jefferson County, Colorado, 1998-2001
Clifford R. Bossong, Jonathan S. Caine, David I. Stannard, Jennifer L. Flynn, Michael R. Stevens, Janet S. Heiny-Dash
2003, Water-Resources Investigations Report 2003-4034
The 47.2-square-mile Turkey Creek watershed, in Jefferson County southwest of Denver, Colorado, is relatively steep with about 4,000 feet of relief and is in an area of fractured crystalline rocks of Precambrian age. Water needs for about 4,900 households in the watershed are served by domestic wells and individual sewage-disposal...
Reactive-transport simulation of phosphorus in the sewage plume at the Massachusetts Military Reservation, Cape Cod, Massachusetts
David L. Parkhurst, Kenneth G. Stollenwerk, John A. Colman
2003, Water-Resources Investigations Report 2003-4017
The subsurface transport of phosphorus introduced by the disposal of treated sewage effluent to ground-infiltration disposal beds at the Massachusetts Military Reservation on western Cape Cod was simulated with a three-dimensional reactive-transport model. The simulations were used to estimate the load of phosphorus transported to Ashumet Pond during operation of...
Assessment of habitat and streamflow requirements for habitat protection, Usquepaug–Queen River, Rhode Island, 1999–2000
David S. Armstrong, Gene W. Parker
2003, Open-File Report 2002-438
The relations among stream habitat and hydrologic conditions were investigated in the Usquepaug–Queen River Basin in southern Rhode Island. Habitats were assessed at 13 sites on the mainstem and tributaries from July 1999 to September 2000. Channel types are predominantly low-gradient glides, pools, and runs that have a sand and...
Simulation of ground-water flow and land subsidence in the Antelope Valley ground-water basin, California
David A. Leighton, Steven P. Phillips
2003, Water-Resources Investigations Report 2003-4016
Antelope Valley, California, is a topographically closed basin in the western part of the Mojave Desert, about 50 miles northeast of Los Angeles. The Antelope Valley ground-water basin is about 940 square miles and is separated from the northern part of Antelope Valley by faults and low-lying hills. Prior to...
Estimating the magnitude of the 100-year peak flow in the Big Lost River at the Idaho National Engineering and Environmental Laboratory, Idaho
Jon Hortness, Joseph P. Rousseau
2003, Water-Resources Investigations Report 2002-4299
Accurate estimates of peak flows in the Big Lost River at the Idaho National Engineering and Environmental Laboratory (INEEL) are needed to assist planners and managers with evaluating possible effects of flooding on facilities at the INEEL. A large difference of 4,350 cubic feet per second (ft3/s) between two previous estimates of the magnitude of the 100-year...
Effectiveness of the New Hampshire stream-gaging network in providing regional streamflow information
Scott A. Olson
2003, Water-Resources Investigations Report 2003-4041
The stream-gaging network in New Hampshire was analyzed for its effectiveness in providing regional information on peak-flood flow, mean-flow, and low-flow frequency. The data available for analysis were from stream-gaging stations in New Hampshire and selected stations in adjacent States. The principles of generalized-least-squares regression analysis were applied to develop...
Descriptions of mineral occurrences and interpretation of mineralized rock geochemical data in the Stikine geophysical survey area, Southeastern Alaska
Cliff D. Taylor
2003, Open-File Report 2003-154
Detailed descriptions of some of the more significant mineral occurrences in the Stikine Airborne Geophysical Survey Project Area are presented based upon site-specific examinations by the U.S. Geological Survey in May of 1998. Reconnaissance geochemical data on unmineralized igneous and sedimentary host rocks, and mineralized rocks are also presented and...
Two-station comparison of peak flows to improve flood-frequency estimates for seven streamflow-gaging stations in the Salmon and Clearwater River Basins, Central Idaho
Charles Berenbrock
2003, Water-Resources Investigations Report 2003-4001
Improved flood-frequency estimates for short-term (10 or fewer years of record) streamflow-gaging stations were needed to support instream flow studies by the U.S. Forest Service, which are focused on quantifying water rights necessary to maintain or restore productive fish habitat. Because peak-flow data for short-term gaging stations can be biased...
Occurrence and transport of cadmium, lead, and zinc in the Spokane River basin, Idaho and Washington, water years 1999-2001
Gregory M. Clark
2003, Water-Resources Investigations Report 2002-4183
A water-quality investigation of the Clark Fork-Pend Oreille and Spokane River Basins began in 1997 as part of the U.S. Geological Survey National Water-Quality Assessment Program. As part of the investigation, selected streams in the Spokane River Basin were sampled for trace metals during water years 1999–2001. These data, combined with data collected as part of a...
Estimating spatial variability of recharge in southern New Jersey from unsaturated-zone measurements
Arthur L. Baehr, Leon J. Kauffman, Kimberlie Perkins, Bernard T. Nolan
2003, Water-Resources Investigations Report 2002-4288
Spatial variability of recharge in southern New Jersey was studied by sampling the unsat-urated zone at 48 sites distributed over approximately 930 square kilometers. Samples of unsaturated-zone sediment were collected during the summer and fall of 1996. Unsaturated flow was calculated using moisture-content data and estimates of conductivity and matric...
A stream-gaging network analysis for the 7-day, 10-year annual low flow in New Hampshire streams
Robert H. Flynn
2003, Water-Resources Investigations Report 2003-4023
The 7-day, 10-year (7Q10) low-flow-frequency statistic is a widely used measure of surface-water availability in New Hampshire. Regression equations and basin-characteristic digital data sets were developed to help water-resource managers determine surface-water resources during periods of low flow in New Hampshire streams. These regression equations and data sets were developed...
Trends in nitrogen concentration and nitrogen loads entering the South Shore Estuary Reserve from streams and ground-water discharge in Nassau and Suffolk counties, Long Island, New York, 1952–97
Monti, Michael P. Scorca
2003, Water-Resources Investigations Report 2002-4255
The 13 major south-shore streams in Nassau and Suffolk Counties, Long Island, New York with adequate long-term (1971-97) water-quality records, and 192 south-shore wells with sufficient water-quality data, were selected for analysis of geographic, seasonal, and long-term trends in nitrogen concentration. Annual total nitrogen loads transported to the South Shore...
The New Albany Shale petroleum system, Illinois basin - Data and map image archive from the material-balance assessment
Debra K. Higley, M. E. Henry, M. D. Lewan, Janet K. Pitman
2003, Open-File Report 2003-37
The data files and explanations presented in this report were used to generate published material-balance approach estimates of amounts of petroleum 1) expelled from a source rock, and the sum of 2) petroleum discovered in-place plus that lost due to 3) secondary migration within, or leakage or erosion from a...
Simulation of Ground-Water Flow in the Irwin Basin Aquifer System, Fort Irwin National Training Center, California
Jill N. Densmore
2003, Water-Resources Investigations Report 2002-4264
Ground-water pumping in the Irwin Basin at Fort Irwin National Training Center, California resulted in water-level declines of about 30 feet from 1941 to 1996. Since 1992, artificial recharge from wastewater-effluent infiltration and irrigation-return flow has stabilized water levels, but there is concern that future water demands associated with expansion...
A geographic information system tool to solve regression equations and estimate flow-frequency characteristics of Vermont Streams
Scott A. Olson, Gary D. Tasker, Craig M. Johnston
2003, Open-File Report 2002-494
Estimates of the magnitude and frequency of streamflow are needed to safely and economically design bridges, culverts, and other structures in or near streams. These estimates also are used for managing floodplains, identifying flood-hazard areas, and establishing flood-insurance rates, but may be required at ungaged sites where no observed flood...
Delineation of water sources for public-supply wells in three fractured-bedrock aquifer systems in Massachusetts
Forest P. Lyford, Carl S. Carlson, Bruce P. Hansen
2003, Water-Resources Investigations Report 2002-4290
Fractured-bedrock aquifer systems in West Newbury, Maynard, and Paxton, Massachusetts, were studied to advance methods of data collection and analysis for delineating contributing areas to public-supply wells completed in fractured rock and for determining the effects of pumping on streams and wetlands. Contributing areas, as defined for this study, include...
Pumping test results for wells within Potrero Canyon, Morongo Band of Mission Indians Reservation, California
M. Isabel Pimentel, Allen H. Christensen
2003, Open-File Report 2002-228
Wells in Potrero Canyon are the main source of water for the Morongo Band of Mission Indians, located near Banning, California. A series of pumping tests were completed on four water-supply wells in the Canyon during February 27 to March 2, 2001. The purpose of the tests was to determine...
Simulated ground-water flow in the Hueco Bolson, an alluvial-basin aquifer system near El Paso, Texas
Charles E. Heywood, Richard M. Yager
2003, Water-Resources Investigations Report 2002-4108
The neighboring cities of El Paso, Texas, and Ciudad Juarez, Chihuahua, Mexico, have historically relied on ground-water withdrawals from the Hueco Bolson, an alluvial-aquifer system, to supply water to their growing populations. By 1996, ground-water drawdown exceeded 60 meters in some areas under Ciudad Juarez and El Paso. A simulation...
Summary of surface-water-quality data collected for the Northern Rockies Intermontane Basins National Water-Quality Assessment Program in the Clark Fork-Pend Oreille and Spokane River basins, Montana, Idaho, and Washington, water years 1999-2001
Michael A. Beckwith
2003, Open-File Report 2002-472
Water-quality samples were collected at 10 sites in the Clark Fork-Pend Oreille and Spokane River Basins in water years 1999 – 2001 as part of the Northern Rockies Intermontane Basins (NROK) National Water-Quality Assessment (NAWQA) Program. Sampling sites were located in varied environments ranging from small streams and rivers in...
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...
Map showing alpine debris flows triggered by a July 28, 1999 thunderstorm in the central Front Range of Colorado
Jonathan W. Godt, Jeffrey A. Coe
2003, Open-File Report 2003-50
This 1:24,000-scale map shows an inventory of debris flows that were triggered above timberline by a thunderstorm in the central Front Range of Colorado. We have classified the debris flows into two categories based on the style of initiation processes in the debris-flow source areas: 1) soil slip, and 2)...
