Summary and interpretation of dye-tracer tests to investigate the hydraulic connection of fractures at a ridge-and-valley-wall site, near Fishtrap Lake, Pike County, Kentucky
Charles J. Taylor
1994, Water-Resources Investigations Report 94-4189
Dye-tracer tests were done during 1985-92 to investigate the hydraulic connection between fractures in Pennsylvanian coal-bearing strata at a ridge-and-valley-wall site near Fishtrap Lake, Pike County, Ky. Fluorescent dye was injected into a core hole penetrating near-surface and mining-induced fractures near the crest of the ridge. The rate and direction...
Bathymetric map of Coeur D'Alene Lake, Idaho
P. F. Woods, Charles E. Berenbrock
1994, Water-Resources Investigations Report 94-4119
The U.S. Geological Survey investigated nutrient and trace-element enrichment in Coeur d'Alene Lake, northern Idaho, during 1991-92. The objectives of the investigation were to characterize limnology, quantify hydrologic and nutrient budgets, and develop a nutrient-load/lake-response model. The model required bathymetric data to compute mass balances of water and nutrients within...
Aquifer descriptions from the U.S. Geological Survey Regional Aquifer-System Analysis Program, 1978-1993
Claire B. Davidson, Helen Doherty
1994, Open-File Report 94-465
The Regional Aquifer-System Analysis Program of the U.S. Geological Survey began in 1978. The overall purpose of this program is to define the geologic, hydrologic, and geochemical framework of the Nation's most important aquifers and aquifer systems. This report summarizes the aquifer or aquifer system name, geographic area, rock units,...
A selected bibliography of references on geology, hydrology, and geochemistry of the Midwestern Basins and Arches region; Ohio, Indiana, Michigan, and Illinois
Anthony Robinson, Edward F. Bugliosi
1994, Open-File Report 94-473
This report contains selected references used for the Midwestern Basins and Arches Regional Aquifer System Analysis project of the U.S. Geological Survey. The project was begun in 1988 to study the geologic framework, hydrology, and geochemistry of the surficial and the Silurian and Devonian carbonate-rock aquifers in the Midwestern Basins...
Hydrologic, water-quality, and meteorologic data from selected sites in the Upper Catawba River Basin, North Carolina, January 1993 through March 1994
M.L. Jaynes
1994, Open-File Report 94-509
Hydrologic, water-quality, and meteorologic data were collected from January 1993 through March 1994 as part of a water-quality investigation of the Upper Catawba River Basin, North Carolina. Specific objectives of the investigation were to characterize the water quality of Rhodhiss Lake, Lake Hickory, and three tributary streams, and to calibrate...
Hydrologic data for northern Bucks County, Pennsylvania
Curtis L. Schreffler, B. C. McManus, C. J. Rowland-Lesitsky, R. A. Sloto
1994, Open-File Report 94-381
Hydrologic and water-quality data were collected in northern Bucks County, Pa., as part of a study conducted by the U.S. Geological Survey, in cooperation with Bridgeton, Buckingham, Nockamixon, Plumstead, Solebury, Springfield, Tinicum, and Wrightstown Townships and New Hope Borough. Hydrologic data on ground water and surface water were collected to...
Identification, characterization, and analysis of hydraulically conductive fractures in granitic basement rocks, Millville, Massachusetts
Frederick L. Paillet, P.W. Ollila
1994, Water-Resources Investigations Report 94-4185
A suite of geophysical logs designed to identify and characterize fractures and water production in fractures was run in six bedrock boreholes at a ground-water contamination site near the towns of Millville and Uxbridge in south-central Massachusetts. The geophysical logs used in this study included conventional gamma, single-point resistance, borehole...
Characterization of the hydrogeology and water quality at the Management Systems Evaluation Area near Princeton, Minnesota, 1991-92
G. N. Delin, M.K. Landon, J.A. Lamb, J. L. Anderson
1994, Water-Resources Investigations Report 94-4149
The Management Systems Evaluation Area (MSEA) program is part of a multi-scale, inter-agency initiative to evaluate the effects of agricultural management systems on water quality in the midwest corn belt. The Minnesota MSEA project is one of five projects selected to represent the principal hydrogeologic settings and geographic diversity of...
Users manual for an expert system (HSPEXP) for calibration of the hydrological simulation program; Fortran
A.M. Lumb, R.B. McCammon, J.L. Kittle Jr.
1994, Water-Resources Investigations Report 94-4168
Expert system software was developed to assist less experienced modelers with calibration of a watershed model and to facilitate the interaction between the modeler and the modeling process not provided by mathematical optimization. A prototype was developed with artificial intelligence software tools, a knowledge engineer, and two domain experts. The...
Analysis of data from test-well sites along the downdip limit of freshwater in the Edwards Aquifer, San Antonio, Texas, 1985-87
G.E. Groschen
1994, Water-Resources Investigations Report 93-4100
Many researchers have studied the downdip limit of freshwater in the Edwards aquifer or various aspects of the saline-water zone and its relation to the freshwater zone. These studies were summarized and used to synthesize a consistent hydrologic and geochemical framework from which to interpret data from field studies. The...
Application of the precipitation-runoff modeling system model to simulate dry season runoff for three watersheds in south-central Guam
L.Y. Nakama
1994, Water-Resources Investigations Report 93-4116
The Precipitation-Runoff Modeling System model was calibrated and verified using existing hydrologic and climatic data for the Maulap and Imong River watersheds for simulation of dry season runoff from three gaged areas that contribute to the Fena Reservoir water supply. The model was applied to the Almagosa River watershed by...
Louisiana hydrologic atlas map no. 7: Water-quality survey of the Mermentau River basin, 1989-90
Dennis K. Demcheck
1994, Water-Resources Investigations Report 92-4181
Influence of evaporation, ground water, and uncertainty in the hydrologic budget of Lake Lucerne, Florida, October 1985-September 1986
T. M. Lee, Amy Swancar
1994, Open-File Report 93-26
Nationwide summary of US Geological Survey regional regression equations for estimating magnitude and frequency of floods for ungaged sites, 1993
M.E. Jennings, W.O. Thomas Jr., H. C. Riggs
1994, Water-Resources Investigations Report 94-4002
For many years, the U.S. Geological Survey (USGS) has been involved in the development of regional regression equations for estimating flood magnitude and frequency at ungaged sites. These regression equations are used to transfer flood characteristics from gaged to ungaged sites through the use of watershed and climatic characteristics as...
Ground Water Atlas of the United States: Segment 7, Idaho, Oregon, Washington
R.L. Whitehead
1994, Hydrologic Atlas 730-H
The States of Idaho, Oregon, and Washington, which total 248,730 square miles, compose Segment 7 of this Atlas. The area is geologically and topographically diverse and contains a wealth of scenic beauty, natural resources, and ground and surface water that generally are suitable for all uses. Most of the area...
Methods of analysis and quality-assurance practices of the U.S. Geological Survey organic laboratory, Sacramento, California: Determination of pesticides in water by solid-phase extraction and capillary-column gas chromatography/mass spectrometry
Kathryn L. Crepeau, Joseph L. Domagalski, Kathryn Kuivila
1994, Open-File Report 94-362
Analytical method and quality-assurance practices were developed for a study of the fate and transport of pesticides in the Sacramento-San Joaquin Delta and the Sacramento and San Joaquin River. Water samples were filtered to remove suspended parti- culate matter and pumped through C-8 solid-phase extraction cartridges to extract the pesticides....
Water-quality, lithologic, and water-level data for wells in Tulare Basin, Kings, Kern, and Tulare Counties, California, August 1990 to February 1993
Sherrill Beard, Roger Fujii, W. Gary Shanks
1994, Open-File Report 94-334
Much of the Tulare Basin is characterized by saline shallow ground water containing elevated concen- trations of arsenic, selenium, and other trace elements. A comprehensive investigation of ground-water geochemist, and, to a limited extent, hydrology was initiated in response to concerns related to (1) adverse effects on migratory waterfowl of...
Summary of water-resources activities of the U.S. Geological Survey in Colorado - Fiscal years 1992-93
Water Resources Division, U.S. Geological Survey
1994, Open-File Report 94-383
Water-resources activities of the U.S. Geological Survey in Colorado consist of collecting water-resources data and doing interpretive hydrologic investigations. The water-resources data and the results of the investigations are published or released by either the U.S. Geological Survey or by cooperating agencies. Water-resources investigations in Colorado for the 1992-93 fiscal...
Simulation of the effects of ground-water withdrawals and recharge on ground-water flow in Cape Cod, Martha's Vineyard, and Nantucket Island basins, Massachusetts
John P. Masterson, Paul M. Barlow
1994, Open-File Report 94-316
The effects of changing patterns of ground-water pumping and aquifer recharge on the surface-water and ground-water hydrologic systems were determined for the Cape Cod, Martha's Vineyard, and Nantucket Island Basins. Three-dimensional, transient, ground-water-flow modelS that simulate both freshwater and saltwater flow were developed for the f1ow cells of Cape Cod...
Assessment of the hydrologic interaction between Imikpuk Lake and the adjacent airstrip site near Barrow, Alaska, 1993
Kathleen A. McCarthy, Gary L. Solin, Dennis Trabant
1994, Open-File Report 94-367
Imikpuk Lake serves as the drinking water source for the Ukpeagvik Inupiat Corporation-National Arctic Research Laboratory (UIC-NARL), formerly known as the Naval Arctic Research Laboratory, near Barrow, Alaska. During the 1970's and 1980's, accidental releases of more than 1,300 cubic meters of various types of fuel occurred at the airstrip...
Overview of environmental and hydrogeologic conditions at Galena, Alaska
Allan S. Nakanishi, Joseph M. Dorava
1994, Open-File Report 94-525
The remote Native village of Galena along the Yukon River in west-central Alaska has long cold winters and short summers that affects the hydrology of the area. The Federal Aviation Administration owns or operates airport support facilities in Galena and wishes to consider the subsistence lifestyle of the residents and...
Overview of environmental and hydrogeologic conditions at Dillingham, Alaska
Betty B. Palcsak, Joseph M. Dorava
1994, Open-File Report 94-482
The remote city of Dillingham is at the northern end of Bristol Bay in southwestern Alaska. The hydrology of the area is strongly affected by the mild maritime climate and local geologic conditions. Dillingham residents obtain drinking water from both deep and shallow aquifers composed of gravels and sands and...
Evaluation of methods for delineating areas that contribute water to wells completed in valley-fill aquifers in Pennsylvania
Dennis W. Risser, Thomas M. Madden
1994, Open-File Report 92-635
Valley-fill aquifers in Pennsylvania are the source of drinking water for many wells in the glaciated parts of the State and along major river valleys. These aquifers area subject to contamination because of their shallow water-table depth and highly transmissive sediments. The possibility for contamination of water-supply wells in valley-fill...
National Water-Quality Assessment Program: the Northern New England Basins study unit
Sarah M. Flanagan, Keith W. Robinson
1994, Fact Sheet 027-94
In 1991, the U.S. Geological Survey (USGS), U.S. Department of the Interior, began a full-scale National Water-Quality Assessment (NAWQA) program. The objectives of the NAWQA program are to describe the present and future water quality of large, representative parts of the United States's surface- and ground-water resources and to identify...
National Water-Quality Assessment Program: Central Arizona Basins
Gail E. Cordy
1994, Fact Sheet 016-94
In 1991, the U.S. Geological Survey (USGS) began to implement a full-scale National Water-Quality Assessment (NAWQA) program. The long-term goals of the NAWQA program are to describe the status and trends in the quality of a large, representative part of the Nation's surface-water and ground-water resources and to provide a...
