Ground-water age, flow, and quality near a landfill, and changes in ground-water conditions from 1976 to 1996 in the Swinomish Indian Reservation, northwestern Washington
B. E. Thomas, S.E. Cox
1998, Water-Resources Investigations Report 98-4014
This report describes the results of two related studies: a study of ground-water age, flow, and quality near a landfill in the south-central part of the Swinomish Indian Reservation; and a study of changes in ground-water conditions for the entire reservation from 1976 to 1996. The Swinomish Indian Reservation is...
Hydrogeology and simulation of ground-water flow in the Paluxy aquifer in the vicinity of Landfills 1 and 3, U.S. Air Force Plant 4, Fort Worth, Texas
Eve L. Kuniansky, Stanley T. Hamrick
1998, Water-Resources Investigations Report 98-4023
Ground-water contamination of the surficial terrace alluvial aquifer has occurred at U.S. Air Force Plant 4, a government-owned, contractor-operated facility, northwest of Fort Worth, Texas. A poorly constructed monitoring well, P–22M, open to the underlying middle zone of the Paluxy aquifer was installed at landfill 3, October 1987, allowing leakage...
Regional rainfall-runoff relations for simulation of streamflow for watersheds in Du Page County, Illinois
James J. Duncker, Charles S. Melching
1998, Water-Resources Investigations Report 98-4035
Rainfall and streamflow data collected from July 1986 through September 1993 were utilized to calibrate and verify a continuous-simulation rainfall-runoff model for three watersheds (11.8--18.0 square miles in area) in Du Page County. Classification of land cover into three categories of pervious (grassland, forest/wetland, and agricultural land) and one category...
Assessment of ground-water vulnerability to atrazine leaching in Kent County, Michigan; review, comparison of results of other studies and verification
D. J. Holtschlag, C. L. Luukkonen
1998, Water-Resources Investigations Report 98-4006
Model assumptions and parameters used in an earlier study of the vulnerability of ground water in Kent County, Michigan, to atrazine contamination were reviewed and compared with other studies. The review indicated that model assumptions are consistent with those used in other models and that the parameters assigned in the...
Potentiometric surface of the Ozark Aquifer in northern Arkansas, 1995
Aaron L. Pugh
1998, Water-Resources Investigations Report 98-4000
The Ozark aquifer in northern Arkansas is comprised of dolostones, limestones, sandstones, and shales of Late Cambrian to Middle Devonian age, and ranges in thickness from approximately 1,100 feet to more than 4,000 feet. Hydrologically, the aquifer is complex, characterized by discrete and diffuse flow components with large spatial variations...
Nutrient loading and selected water-quality and biological characteristics of Dickinson Bayou near Houston, Texas, 1995-97
Jeffery W. East, Edna M. Paul, Stephen D. Porter
1998, Water-Resources Investigations Report 98-4012
Data were collected at 10 stations in the Dickinson Bayou watershed near Houston, Texas, from March 1995 through February 1997 to estimate the concentrations, loads, and yields of selected nutrients that enter the bayou; to characterize the effects on nutrient concentrations of flow conditions, seasonality, and land use; and to...
Analytical methods, numerical modeling, and monitoring strategies for evaluating the effects of ground-water withdrawals on unconfined aquifers in the New Jersey Coastal Plain
Edward Modica
1998, Water-Resources Investigations Report 98-4003
Analytical and numerical solutions of ground-water withdrawals in the unconfined part of the Kirkwood-Cohansey aquifer system of the Coastal Plain of New Jersey were evaluated for their usefulness in predicting the area of influence of a pumped well and in determining hydraulic characteristics of an aquifer. Additionally, simulations of ground-water...
One-Dimensional Transport with Inflow and Storage (OTIS): A Solute Transport Model for Streams and Rivers
Robert L. Runkel
1998, Water-Resources Investigations Report 98-4018
OTIS is a mathematical simulation model used to characterize the fate and transport of water-borne solutes in streams and rivers. The governing equation underlying the model is the advection-dispersion equation with additional terms to account for transient storage, lateral inflow, first-order decay, and sorption. This equation and the associated equations...
Fish communities and their relation to physical and chemical characteristics of streams from selected environmental settings in the Lower Susquehanna River basin, 1993-95
Michael D. Bilger, Robin A. Brightbill
1998, Water-Resources Investigations Report 98-4004
Studies of fish-community composition were conducted annually in selected reaches (from 100 to 303 meters in length) on seven streams from June 1993 to June 1995 within the Lower Susquehanna River Basin. In 1994, additional reaches were selected on three of the streams, resulting in a total of 28 samples....
Geohydrology and quality of ground water in unconsolidated aquifers near South Bend, Indiana
K. K. Fowler, L. D. Arihood
1998, Water-Resources Investigations Report 98-4139
IntroductionThe water supply for the City of South Bend, Indiana, and much of surrounding St. Joseph County is provided by 36 municipal and community well fields. Some of these well fields are located near known or potential sources of ground-water contamination that could affect ground-water supplies in the near future....
Probability of detecting atrazine/desethyl-atrazine and elevated concentrations of nitrate (NO2+NO3-N) in ground water in the Idaho part of the upper Snake River basin
Michael G. Rupert
1998, Water-Resources Investigations Report 98-4203
Draft Federal regulations may require that each State develop a State Pesticide Management Plan for the herbicides atrazine, alachlor, cyanazine, metolachlor, and simazine. This study developed maps that the Idaho State Department of Agriculture might use to predict the probability of detecting atrazine and desethyl-atrazine (a breakdown product of atrazine)...
Mississippi Basin Carbon Project science plan
E.T. Sundquist, R.F. Stallard, N.B. Bliss, H. W. Markewich, J.W. Harden, M.J. Pavich, M.D. Dean Jr.
1998, Open-File Report 98-177
Understanding the carbon cycle is one of the most difficult challenges facing scientists who study the global environment. Lack of understanding of global carbon cycling is perhaps best illustrated by our inability to balance the present-day global CO2 budget. The amount of CO2 produced by burning fossil fuels and by...
Digital geologic map of the Thirsty Canyon NW quadrangle, Nye County, Nevada
S.A. Minor, P. P. Orkild, K. A. Sargent, R.G. Warren, D.A. Sawyer, J.B. Workman
1998, Open-File Report 98-623
This digital geologic map compilation presents new polygon (i.e., geologic map unit contacts), line (i.e., fault, fold axis, dike, and caldera wall), and point (i.e., structural attitude) vector data for the Thirsty Canyon NW 7 1/2' quadrangle in southern Nevada. The map database, which is at 1:24,000-scale resolution, provides geologic...
Factors related to the joint probability of flooding on paired streams
G. F. Koltun, J. M. Sherwood
1998, Water-Resources Investigations Report 98-4238
The factors related to the joint probabilty of flooding on paired streams were investigated and quantified to provide information to aid in the design of hydraulic structures where the joint probabilty of flooding is an element of the design criteria. Stream pairs were considered to have flooded jointly at the...
Water-quality assessment of the Potomac River Basin; water-quality and selected spatial data, 1992-96
A.L. Derosier, J. W. Brakebill, J. M. Denis, S.K. Kelley
1998, Open-File Report 98-180
ODDF; a file I/O subroutine package implementing NASA PDS data description and USGS map projections, version 1.6
M. W. Webring
1998, Open-File Report 98-765
Geochemical data including mercury speciation for surface waters at the abandoned Greenwood mine area, Prince William Forest Park, Virginia
R.R. Seal, D.P. Haffner, A. L. Meier
1998, Open-File Report 98-756
Fish, benthic macroinvertebrate, and stream habitat data from the Houston-Galveston Area Council service area, Texas, 1997-98
J. Bruce Moring, John C. Rosendale, Stephen P. Ansley, Dexter W. Brown
1998, Open-File Report 98-658
The U.S. Geological Survey collected fish, benthic macroinvertebrate, and stream habitat data at sampling sites in the Houston-Galveston Area Council service area, a 15-county area with a population of about 4.3 million people. The data were collected for a 1997?98 study in cooperation with the Houston-Galveston Area Council to provide...
Correlations among seasonal water quality, discharge, weather, and coverage by submersed aquatic vegetation in the tidal Potomac River and Potomac Estuary, 1983-96
Virginia Carter, N. B. Rybicki, J.M. Landwehr, J. T. Reel, H. Ruhl
1998, Open-File Report 98-657
The U.S. Geological Survey has been cooperating with other scientists under the auspices of the Interstate Commission on the Potomac River Basin to utilize existing data from the tidal Potomac River and Estuary for investigating linkages among living resources (primary producers, consumers) and abiotic components of the environment. Because the...
Geologic map of central (interior) Alaska
Frederic H. Wilson, James H. Dover, Dwight Bradley, Florence R. Weber, Thomas K. Bundtzen, Peter J. Haeussler
1998, Open-File Report 98-133-A
Introduction: This map and associated digital databases are the result of a compilation and reinterpretation of published and unpublished 1:250,000- and limited 1:125,000- and 1:63,360-scale mapping. The map area covers approximately 416,000 sq km (134,000 sq mi) and encompasses 25 1:250,000-scale quadrangles in central Alaska. The compilation was done...
Fischer assays of oil shale drill cores and rotary cuttings from the Piceance Basin, Colorado— 2009 update
Tracey J. Mercier, Michael E. Brownfield, Ronald C. Johnson, Jesse G. Self
1998, Open-File Report 98-483
This CD-ROM includes updated files containing Fischer assays of samples of core holes and cuttings from exploration drill holes drilled in the Eocene Green River Formation in the Piceance Basin of northwestern Colorado. A database was compiled that includes more than 321,380 Fischer assays from 782 boreholes. Most of the...
Alaska resource data file: Anchorage quadrangle
D P. Bickerstaff, S. W. Huss
1998, Open-File Report 98-599
No abstract available....
Crosswell seismic tomography at the USGS fractured rock research site data collection, data processing, and tomograms
K.J. Ellefson, J. E. Kibler, P. A. Hsieh, A.M. Shapiro
1998, Open-File Report 98-510
No abstract available....
Magnetotelluric data in the Pahute Mesa and Oasis Valley areas, Nye County, Nevada
C.J. Schenkel
1998, Open-File Report 98-504
Soil, environmental, and watershed measurements in support of carbon cycling studies in northwestern Mississippi
Thomas G. Huntington, J.W. Harden, S. M. Dabney, D. A. Marion, C. Alonso, J. M. Sharpe, T. L. Fries
1998, Open-File Report 98-501
Measurements including soil respiration, soil moisture, soil temperature, and carbon export in suspended sediments from small watersheds were recorded at several field sites in northwestern Mississippi in support of hillslope process studies associated with the U.S. Geological Survey's Mississippi Basin Carbon Project (MBCP). These measurements were made to provide information...
