Delineation of the Troy Bedrock Valley and particle-tracking analysis of ground-water flow underlying Belvidere, Illinois
P.C. Mills, Keith J. Halford, R.P. Cobb
2002, Water-Resources Investigations Report 2002-4062
The U.S. Geological Survey, U.S. Environmental Protection Agency, and Illinois Environmental Protection Agency began a study of the hydrogeology, flow system, and distribution of contaminants in the aquifers underlying Belvidere, Ill., and vicinity in 1992. As part of the study, the ancestral Troy Bedrock Valley, located about 1.5 miles west...
Use of isotopes to identify sources of ground water, estimate ground-water-flow rates, and assess aquifer vulnerability in the Calumet region of northwestern Indiana and northeastern Illinois
Robert T. Kay, E. Randall Bayless, Robert A. Solak
2002, Water-Resources Investigations Report 2002-4213
Isotope data collected in the Calumet Region of northwestern Indiana and northeastern Illinois, one of the most heavily industrialized regions of the United States, indicated that water in the surficial Calumet aquifer is well mixed. The Calumet aquifer is recharged areally by precipitation and locally may be recharged by surface...
Spatial and temporal variations in streamflow, dissolved solids, nutrients, and suspended sediment in the Rio Grande Valley study unit, Colorado, New Mexico, and Texas, 1993–95
Stephanie J. Moore, Scott K. Anderholm
2002, Water-Resources Investigations Report 2002-4224
Streamflow and water quality vary spatially and temporally in the Rio Grande from Del Norte, Colorado, to El Paso, Texas. The variations in streamflow and in concentrations of selected waterquality constituents—dissolved solids, dissolved nitrite plus nitrate as nitrogen, total phosphorus, and suspended sediment—are described in this report. A multivariate linear...
Assessment of stream quality using biological indices at selected sites in the Brandywine Creek basin, Chester County, Pennsylvania, 1981-97
Andrew G. Reif
2002, Fact Sheet 117-02
In 1970, the Chester County Water Resources Authority (Pennsylvania) and the U.S. Geological Survey (USGS) established a longterm water-quality network with the goal of assessing the quality of streams in the county and understanding stream changes in response to urbanization using benthic-macroinvertebrate data. This database represents one of the longest...
Assessment of stream quality using biological indices at selected sites in the Big Elk and Octoraro Creek basins, Chester County, Pennsylvania, 1981-97
Andrew G. Reif
2002, Fact Sheet 115-02
IntroductionIn 1970, the Chester County Water Resources Authority (Pennsylvania) and the U.S. Geological Survey (USGS) established a long-term water-quality network with the goal of assessing the quality of streams in the county and understanding stream changes in response to urbanization using benthic-macroinvertebrate data. This database represents one of the longest...
Using the National Flood Frequency Program, version 3; a computer program for estimating magnitude and frequency of floods for ungaged sites
Craig D. Perl, Kernell G. Ries III
2002, Fact Sheet 084-02
The loads of selected herbicides in the Ohio River basin, 1997-2000
Angela S. Crain
2002, Fact Sheet 089-02
User guide for the drawdown-limited, multi-node well (MNW) package for the U.S. Geological Survey's modular three-dimensional finite-difference ground-water flow model, versions MODFLOW-96 and MODFLOW-2000
Keith J. Halford, Randall T. Hanson
2002, Open-File Report 02-293
A computer program called the drawdown-limited, Multi-Node Well (MNW) Package was developed for the U.S. Geological Survey three-dimensional finite-difference modular ground-water flow model, commonly referred to as MODFLOW. The MNW Package allows MODFLOW users to simulate wells that extend beyond a single model node. Multi-node wells can simulate wells that...
Geologic map of the Bernalillo NW quadrangle, Sandoval County, New Mexico
Daniel Koning, Stephen F. Personius
2002, Miscellaneous Field Studies Map 2404
The Bernalillo NW quadrangle is located in the northern part of the Albuquerque basin, which is the largest basin or graben within the Rio Grande rift. The quadrangle is underlain by poorly consolidated sedimentary rocks of the Santa Fe Group. These rocks are best exposed in the southwestern part...
Geologic map of the Santa Ana Pueblo quadrangle, Sandoval County, New Mexico
Stephen F. Personius
2002, Miscellaneous Field Studies Map 2405
The Santa Ana Pueblo quadrangle is located in the northern part of the Albuquerque basin, which is the largest basin or graben within the Rio Grande rift. The quadrangle is underlain by poorly consolidated sedimentary rocks of the Santa...
Hydrology of the Texas Gulf Coast aquifer systems
Paul D. Ryder, Ann F. Ardis
2002, Professional Paper 1416-E
Hydrogeology, ground-water use, and ground-water levels in the Mill Creek Valley near Evendale, Ohio
Charles Schalk, Thomas Schumann
2002, Water-Resources Investigations Report 2002-4167
Withdrawals of ground water in the central Mill Creek Valley near Evendale, Ohio, caused water-level declines of more than 100 feet by the 1950s. Since the 1950s, management practices have changed to reduce the withdrawals of ground water, and recovery of water levels in long-term monitoring wells in the valley...
Earthquake Hazard in the Heart of the Homeland
Water Resources Division, U.S. Geological Survey
2002, Fact Sheet 131-02
Estimated use of water in South Dakota, 2000
Franklin D. Amundson
2002, Open-File Report 2002-440
During 2000, the total amount of water withdrawn from ground- and surface-water sources in South Dakota was about 528 Mgal/d (million gallons per day). Of this amount, about 222 Mgal/d, or 42 percent of the total, was from ground water. Surface-water withdrawals were about 306 Mgal/d, or 58 percent of...
Assimilation and retention of selenium and other trace elements from crustacean food by juvenile striped bass (Morone saxatilis)
Stephen B. Baines, Nicholas S. Fisher, A. Robin Stewart
2002, Limnology and Oceanography (47) 647-655
Estimates of the assimilation and retention of trace elements from food by fish are useful for linking toxicity with the biogeochemical cycling of these elements through aquatic food webs. Here we use pulse-chase radiotracer techniques to estimate the assimilation and retention of Se and four trace metals, Ag, Am, Zn,...
Hydrodynamics of larval settlement: The influence of turbulent stress events at potential recruitment sites
John P. Crimaldi, Janet K. Thompson, Johanna H. Rosman, Ryan J. Lowe, Jeffrey R. Koseff
2002, Limnology and Oceanography (47) 1137-1151
We describe a laboratory investigation into the effect of turbulent hydrodynamic stresses on clam larvae in the settlement phase of the recruitment process. A two-component laser-Doppler anemometer (LDA) was used to measure time histories of the instantaneous turbulence structure at potential recruitment sites within reconstructed beds of the adult Asian...
Wisconsin aeromagnetic and gravity maps and data: A web site for distribution of data
David L. Daniels, Stephen L. Snyder
2002, Open-File Report 2002-493
No abstract available....
Daily values flow comparison and estimates using program HYCOMP, version 1.0
Curtis L. Sanders
2002, Open-File Report 2002-286
A method used by the U.S. Geological Survey for quality control in computing daily value flow records is to compare hydrographs of computed flows at a station under review to hydrographs of computed flows at a selected index station. The hydrographs are placed on top of each other (as hydrograph...
Crustal structure of the coastal and marine San Francisco Bay region, California
Thomas E. Parsons, editor(s)
2002, Professional Paper 1658
As of the time of this writing, the San Francisco Bay region is home to about 6.8 million people, ranking fifth among population centers in the United States. Most of these people live on the coastal lands along San Francisco Bay, the Sacramento River delta, and the Pacific coast. The...
Satellite image atlas of glaciers of the world — North America
Richard S. Williams Jr., Jane G. Ferrigno, C. Simon L. Ommanney, Roger D. Wheate, Robert W. Sidjak, Garnet T. Whyte, R. Koerner, Martin O Jeffries, John T. Andrews, Gerald Holdsworth, John D. Jacobs, Garry K. C. Clarke, Phillip J. Howarth, Robert M. Krimmel, Carl H. Key, Daniel B. Fagre, R. K. Menicke, Sidney White
Richard S. Williams Jr., Jane G. Ferrigno, editor(s)
2002, Professional Paper 1386-J
No abstract available....
Studies by the U.S. Geological Survey in Alaska, 2000
Frederic H. Wilson, John P. Galloway, editor(s)
2002, Professional Paper 1662
The collection of eight papers that follow continue the series of U.S. Geological Survey (USGS) investigative reports in Alaska under the broad umbrella of the geologic sciences. The series presents new and sometimes-preliminary findings that are of interest to earth scientists in academia, government, and industry; to land and resource...
Occurrence of invertebrates at 38 stream sites in the Mississippi Embayment study unit, 1996-99
Brian J. Caskey, B. G. Justus, Humbert Zappia
2002, Open-File Report 2002-190
A total of 88 invertebrate species and 178 genera representing 59 families, 8 orders, 6 classes, and 3 phyla was identified at 38 stream sites in the Mississippi Embayment Study Unit from 1996 through 1999 as part of the National Water-Quality Assessment Program. Sites were selected based on land use...
Barrier island elevations relevant to potential storm impacts: 2, South Atlantic
Nicole A. Elko, Sallenger Jr., Kristy K. Guy, Karen L.M. Morgan
2002, Open-File Report 2002-288
No abstract available....
Joint Israeli-Palestinian gravity survey in the Dead Sea Rift valley
Michael Rybakov, R. El-Kelani, Uri S. ten Brink
2002, Open-File Report 2000-341
Magnesium recycling in the United States in 1998
Deborah A. Kramer
2002, Circular 1196-E
As concern for the environment has grown in recent years, the importance of recycling has become more evident. The more materials that are recycled, the fewer natural resources will be consumed and the fewer waste products will end up in landfills, the water, and the air. As one of a...
