Hydrologic classification and estimation of basin and hydrologic characteristics of subbasins in central Idaho
Stephen W. Lipscomb
1998, Professional Paper 1604
Hydrologic data for streams and associated subbasins within the Salmon and Clearwater river basins were analyzed to support instream flow claims by the Bureau of Indian Affairs on behalf of the Nez Perce Indian Tribe. A geographic information system was used to construct a data base of basin characteristics for...
Simulating transport of volatile organic compounds in the unsaturated zone using the computer model R-UNSAT
Matthew A. Lahvis, Arthur L. Baehr
1998, Fact Sheet 019-98
Subsurface spills of gasoline and other petroleum products are a common environmental problem throughout the industrialized world. The U.S. Environmental Protection Agency has estimated that 40 percent of the more than 200,000 retail service stations in the United States have had accidental releases of petroleum hydrocarbons to the subsurface (U.S....
Herbicides in Midwestern reservoir outflows, 1992-93
John K. Stamer, William A. Battaglin, Donald A. Goolsby
1998, Fact Sheet 134-98
No abstract available. ...
Concepts for monitoring water quality in the Spokane River Basin, northern Idaho and eastern Washington
M.A. Beckwith
1998, Open-File Report 98-534
Numerous environmental studies have been conducted in the Spokane River Basin over the past several decades by government agencies, academic institutions, and environmental engineering firms. Most of these efforts have focused on the environmental effects of more than a century of silver, lead, and zinc mining and oreprocessing activities in the South Fork Coeur d'Alene River valley in...
National water-quality assessment of the Lake Erie-Lake St. Clair Basin, Michigan, Indiana, Ohio, Pennsylvania, and New York — Environmental and hydrologic setting
G. D. Casey, Donna N. Myers, D. P. Finnegan, Michael E. Wieczorek
1998, Water-Resources Investigations Report 97-4256
The Lake Erie-Lake St. Clair Basin covers approximately 22,300 mi2 (square miles) in parts of Indiana, Michigan, Ohio, Pennsylvania, and New York. Situated in two major physiographic provinces, the Appalachian Plateaus and the Central Lowland, the basin includes varied topographic and geomorphic features that affect the hydrology. As of 1990,...
Preliminary estimates of residence times and apparent ages of ground water in the Chesapeake Bay watershed, and water-quality data from a survey of springs
Michael J. Focazio, Niel Plummer, John K. Bohlke, Eurybiades Busenberg, L. Joseph Bachman, David S. Powars
1998, Water-Resources Investigations Report 97-4225
Knowledge of the residence times of the ground-water systems in Chesapeake Bay watershed helps resource managers anticipate potential delays between implementation of land-management practices and any improve-ments in river and estuary water quality. This report presents preliminary estimates of ground-water residence times and apparent ages of water in...
Quaternary geology and liquefaction susceptibility, Napa, California 1:100,000 quadrangle: A digital database
Janet M. Sowers, Jay S. Noller, William R. Lettis
1998, Open-File Report 98-460
Earthquake-induced ground failures such as liquefaction have historically brought loss of life and damage to property and infrastructure. Observations of the effects of historical large-magnitude earthquakes show that the distribution of liquefaction phenomena is not random. Liquefaction is restricted to areas underlain by loose, cohesionless sands and silts...
Ground-water quality in three urban areas in the Coastal Plain of the southeastern United States, 1995
M. P. Berndt, D.R. Galeone, T.B. Spruill, C. A. Crandall
1998, Water-Resources Investigations Report 97-4234
Ground-water quality is generally good in three urban areas studied in the Coastal Plain of the southeastern United States涌cala and Tampa, Florida, and Virginia Beach, Virginia. The hydrology of these areas differs in that Ocala has many karst depressions but virtually no surface-water features, and Tampa and Virginia Beach have...
Hydrologic and water-quality data for the lower Bradley River, Alaska, November through April 1995-98
Ronlad L. Rickman
1998, Open-File Report 98-385
A dam constructed at the outlet of Bradley Lake near Homer, Alaska has blocked natural flows to the lower Bradley River. To protect salmon egg incubation habitat during the period of November 2 to April 30, a fish-water bypass was incorporated into the design of the dam to ensure a...
Summary of floods in the United States, January 1992 through September 1993
Charles A. Perry, L. J. Combs, editor(s)
1998, Water Supply Paper 2499
This volume contains a summary of the flooding in the upper Mississippi River Basin during the spring and summer of 1993 and 36 articles describing severe, widespread, or unusual flooding in the United States from January 1, 1992, to the end of the 1993 water year, September 30, 1993. Each...
Metal trends and effects in Potamocorbula amurensis in north San Francisco Bay
Cynthia L. Brown, Samuel N. Luoma
1998, Interagency Ecological Program Newsletter (11) 33-35
No abstract available....
Lithostratigraphy, petrography, biostratigraphy, and strontium-isotope stratigraphy of the surficial aquifer system of western Collier County, Florida
Lucy E. Edwards, S.D. Weedman, Kathleen Simmons, T.M. Scott, G. L. Brewster-Wingard, S. E. Ishman, N.M. Carlin
1998, Open-File Report 98-205
In 1996, seven cores were recovered in western Collier County, southwestern Florida, to acquire subsurface geologic and hydrologic data to support ground-water modeling efforts. This report presents the lithostratigraphy, X-ray diffraction analyses, petrography, biostratigraphy, and strontium-isotope stratigraphy of these cores. The oldest unit encountered in the study cores is an...
Mapping hydraulically permeable fractures using directional borehole radar and hole-to-hole tomography with a saline tracer
David L. Wright, John W. Lane Jr.
1998, Conference Paper, Proceedings of the symposium on the application of geophysics to engineering and environmental problems
Reflection-mode borehole radar and transmission-mode radar tomograms image heterogeneity in the electromagnetic properties of rock. Heterogeneity may be produced by interfaces between different rock types, foliation, and fracturing. In crystalline rock, hydraulic flow is primarily through fracture networks rather than through the rock matrix. Borehole radar methods have been...
Erosion, weathering, and sedimentation
Paul R. Bierman, Achim Albrecht, Michael H. Bothner, Erik Thorson Brown, Thomas D. Bullen, Leda-Beth Gray, Laurent Turpin
1998, Book chapter, Isotope tracers in catchment hydrology
This chapter explains how a variety of nuclides have been applied to catchments throughout the world. One of the most exciting new approaches for quantifying the rate at which catchments erode is the measurement of in situ produced cosmogenic nuclides. The commonly applied nuclides for erosion rate measurements are 3He, 10Be, 26A1, and 36C1. Use of...
Continuous hydrologic simulation of runoff for the Middle Fork and South Fork of the Beargrass Creek basin in Jefferson County, Kentucky
G. Lynn Jarrett, Aimee C. Downs, Patricia A. Grace-Jarrett
1998, Water-Resources Investigations Report 98-4182
The Hydrological Simulation Pro-gram-FORTRAN (HSPF) was applied to an urban drainage basin in Jefferson County, Ky to integrate the large amounts of information being collected on water quantity and quality into an analytical framework that could be used as a management and planning tool. Hydrologic response units were developed using...
In-situ alteration of minerals by acidic ground water resulting from mining activities: Preliminary evaluation of method
Carol J. Lind, C. L. Creasey, Cory E. Angeroth
1998, Journal of Geochemical Exploration (64) 293-305
The chemical composition of the Cu-mining-related acidic ground water (pH ∼ 3.5 to near neutral) in Pinal Creek Basin, Arizona has been monitored since 1980. In-situ experiments are planned using alluvial sediments placed in the ground-water flow path to measure changes in mineral and...
Hydrologic and chemical data from the Long Valley Hydrologic Advisory Committee Monitoring Program in Long Valley Caldera, Mono County, California, 1988-1997
M.L. Sorey, C. D. Farrar
1998, Open-File Report 98-70
Precipitation, streamflow, and water-quality data from selected sites in the City of Charlotte and Mecklenburg County, North Carolina, 1995-97
J. B. Robinson, W. F. Hazell, R. G. Garrett
1998, Open-File Report 98-67
Precipitation data were collected at 46 precipitation sites and 3 atmospheric deposition sites, and hydrologic data were collected at 9 stream sites in the vicinity of Charlotte and Mecklenburg County, North Carolina, from July 1995 through June 1997. Data were collected to identify the type, concentration, and amount of nonpoint-source...
Aquifer systems in the Great Basin region of Nevada, Utah, and adjacent states; summary report
J. R. Harrill, David E. Prudic
1998, Professional Paper 1409-A
Findings of the Great Basin Regional Aquifer System Analysis (RASA) are summarized. The Great Basin RASA study encompasses an area of about 140,000 square miles. Regional hydrology and ground-water hydrology of the area are described. Five models of basin-fill aquifers, a ground-water flow model of the Fish Springs system, and...
FEMFLOW3D; a finite-element program for the simulation of three-dimensional aquifers; version 1.0
Timothy J. Durbin, Linda D. Bond
1998, Open-File Report 97-810
This document describes a computer program that simulates three-dimensional ground- water systems using the finite-element method. The program was developed to simulate regional ground-water systems, but it can be applied to small-scale problems as well. This program can be used to simulate both confined and water-table aquifers. The program simulates a...
The last interglaciation at Owens Lake, California; Core OL-92
James L. Bischoff, editor(s)
1998, Open-File Report 98-132
Owens Lake, located at the eastern base of the central Sierra Nevada (Fig. 1), was the terminus of the Owens River prior to the lake's complete desiccation shortly after 1913 due to river diversion by the City of Los Angeles. During earlier wetter cycles, the lake overflowed to fill a...
Somerset County Flood Information System
William M. Summer
1998, Fact Sheet 090-98
IntroductionThe timely warning of a flood is crucial to the protection of lives and property. One has only to recall the flood of August 2, 1973, in Somerset County, New Jersey, in which six lives were lost and major property damage occurred, to realize how unexpected and costly, especially in...
Analytical results for forty-two fluvial tailings cores and seven stream sediment samples from High Ore Creek, northern Jefferson County, Montana
David L. Fey, Stan E. Church
1998, Open-File Report 98-215
Metal-mining related wastes in the Boulder River basin study area in northern Jefferson County, Montana have been implicated in their detrimental effects on water quality with regard to acid-generation and toxic-metal solubility. Sediments, fluvial tailings and water from High Ore Creek have been identified as significant contributors to water quality...
Fate of MTBE relative to benzene in a gasoline-contaminated aquifer (1993-98):
James Landmeyer, Francis H. Chapelle, Paul M. Bradley, James F. Pankow, Clinton D. Church, Paul G. Tratnyek
1998, Groundwater Monitoring & Remediation (18) 93-102
Methyl tert-butyl ether (MTBE) and benzene have been measured since 1993 in a shallow, sandy aquifer contaminated by a mid-1980s release of gasoline containing fuel oxygenates. In wells downgradient of the release area, MTBK was detected before benzene, reflecting a chromatographic-like separation of these compounds in the direction of ground...
Design for a packer/vacuum slug test system for estimating hydraulic conductivity in wells with LNAPLs, casing leaks, or water tables intersecting the screens
Michael L. Strobel, Carissa J. Strobel, Geoffrey N. Delin
1998, Groundwater Monitoring & Remediation (18) 77-80
“Results indicate that the packer/vacuum system is an adequate method for obtaining values of hydraulic conductivity.”...
