Documented and potential extreme peak discharges and relation between potential extreme peak discharges and probable maximum flood peak discharges in Texas
William H. Asquith, Raymond M. Slade Jr.
1995, Water-Resources Investigations Report 95-4249
The U.S. Geological Survey, in cooperation with the Texas Department of Transportation, conducted a study of extreme flood potential for Texas. Potential extreme peak discharges, derived from the relation between documented extreme peak discharges and their contributing drainage areas, can provide valuable information concerning the maximum expected peak discharge that...
Hydrologic data for the Weldon Spring chemical plant site and vicinity property, St. Charles County, Missouri, 1989-95
M. J. Kleeschulte
1995, Open-File Report 95-463
No abstract available....
Physical and hydrologic properties of outcrop samples from a nonwelded to welded tuff transition, Yucca Mountain, Nevada
C.A. Rautman, L. E. Flint, A. L. Flint, J.D. Istok
1995, Water-Resources Investigations Report 95-4061
Quantitative material-property data are needed to describe lateral and vertical spatial variability of physical and hydrologic properties and to model ground-water flow and radionuclide transport at the potential Yucca Mountain nuclear-waste repository site in Nevada. As part of ongoing site characterization studies of Yucca Mountain directed toward this understanding of...
Estimates of ground-water recharge rates for two small basins in central Nevada
R.W. Lichty, P. W. McKinley
1995, Water-Resources Investigations Report 94-4104
Estimates of ground-water recharge rates developed from hydrologic modeling studies are presented for 3-Springs and East Stewart basins. two small basins (analog sites) located in central Nevada. The analog-site studies were conducted to aid in the estimation of recharge to the paleohydrologic regime associated with ground water in the vicinity...
Conceptualization and simulation of runoff generation from rainfall for three basins in Thurston County, Washington
S.N. Berris
1995, Water-Resources Investigations Report 94-4038
A method to conceptualize and simulate the generation of runoff from rainfall was applied to three small drainage basins in north-central Thurston County, Washington. Because the study basins face continued urban development, this method was developed to provide a technique for assessing the effects of alternative urban-development plans on runoff...
Ground Water Atlas of the United States: Segment 2, Arizona, Colorado, New Mexico, Utah
Stanley G. Robson, Edward R. Banta
1995, Hydrologic Atlas 730-C
This chapter of the Ground Water Atlas of the United States describes the aquifers in Arizona, Colorado, New Mexico, and Utah. These four States, which comprise Segment 2 of this Atlas, are located in the Southwestern United States and extend from the rolling grasslands of the Great Plains on the...
Ground Water Atlas of the United States: Segment 1, California, Nevada
Michael Planert, John S. Williams
1995, Hydrologic Atlas 730-B
California and Nevada compose Segment 1 of the Ground Water Atlas of the United States. Segment 1 is a region of pronounced physiographic and climatic contrasts. From the Cascade Mountains and the Sierra Nevada of northern California, where precipitation is abundant, to the Great Basin in Nevada and the deserts...
Delineation of flooding within the upper Mississippi River Basin, 1993 — Flood of June 29-September 18, 1993, in Iowa City and vicinity, Iowa
Bryan D. Schaap, Craig A. Harvey
1995, Hydrologic Atlas 735-B
The hydrologic investigations atlas shows the areas in and around Iowa City, Iowa, that were flooded by the Iowa River in 1993. This map also depicts the Federal Emergency Management Agency (FEMA) 100-year flood boundaries. The drainage basin of the Iowa River at Iowa City received well over 100 percent...
Hydrologic aspects of Hurricane Hugo in South Carolina, September 1989
R. E. Schuck-Kolben, R.N. Cherry
1995, Hydrologic Atlas 733
Hurricane Hugo, with winds in excess of 135 miles per hour(mi/h), made landfall near Charleston, S.C., early on the morning of September 22, 1989. It was the most destructive hurricane ever experienced in South Carolina. The storm caused 35 deaths and $7 billion in property damage in South Carolina (Purvis,...
Delineation of flooding within the upper Mississippi River basin — Flood of July 30, 1993, in Jefferson City and vicinity, Missouri
Terry W. Alexander
1995, Hydrologic Atlas 735-A
This report provides Missouri River flood-peak elevation data and delineates the areal extent of flooding in Jefferson City and vicinity, Missouri, for July 30, 1993. The July 1993 flood is compared with the Federal Emergency Management Agency's (FEMA) 100- and 500-year flood profiles. This report is one of a series...
Precipitation depth-duration and frequency characteristics for Antelope Valley, Mojave Desert, California
J. C. Blodgett
1995, Water-Resources Investigations Report 95-4056
Methods to evaluate changes in the volume of storm runoff from drainage basins that are likely to be urbanized are needed by land-use planning agencies to establish criteria for the design of flood-control systems. To document the changes in runoff volume of basins that may be urbanized, nine small basins...
Hydrology and simulation of ground-water flow in the Aguadilla to Rio Camuy area, Puerto Rico
Patrick Tucci, M.I. Martinez
1995, Water-Resources Investigations Report 95-4028
The aquifers of the Aguadilla to Rio Camuy area, in the northwestern part of Puerto Rico, are the least developed of those on the north coast, and relatively little information is available concerning the ground-water system. The present study, which was part of a comprehensive appraisal of the ground-water resources...
Hydrology of the unconfined aquifer system in the upper Maurice River basin and adjacent areas in Gloucester County, New Jersey, 1986-87
Pierre J. Lacombe, Robert Rosman
1995, Water-Resources Investigations Report 92-4128
No abstract available....
Development of a 14-digit hydrologic coding scheme and boundary data set for New Jersey
William H. Ellis, Curtis V. Price
1995, Water-Resources Investigations Report 95-4134
Synthesis of nutrient and sediment data for watersheds within the Chesapeake Bay drainage basin
M. J. Langland, P. L. Lietman, S. A. Hoffman
1995, Water-Resources Investigations Report 95-4233
Nutrient and sediment data collected by Federal and state agencies from 1972 through 1992 at 1,058 surface-water sites in nontidal parts of the Chesapeake Bay Basin were compiled into a large database. Adequate nutrient, sediment, and streamflow data were not available to compute annual loads for all sites because water-quality...
Analysis of streamflow characteristics for streams on the island of Tutuila, American Samoa
Michael F. Wong
1995, Water-Resources Investigations Report 95-4185
Several methods for estimating streamflow characteristics for low and peak flows for streams on Tutuila, American Samoa are presented. These methods, derived from frequency, flow-duration, and regression analyses, allow the user to compute estimates for the 7-day low flow with 2-year and 10-year recurrence intervals; the median flow; the mean...
Assessment of intrinsic bioremediation of jet fuel contamination in a shallow aquifer, Beaufort, South Carolina
Frank Chapelle, J. E. Landmeyer, P. M. Bradley
1995, Water-Resources Investigations Report 95-4262
Field and laboratory studies show that microorganisms indigenous to the ground-water system underlying Tank Farm C, Marine Corps Air Station Beaufort, S.C., degrade petroleum hydrocarbons under aerobic and anaerobic conditions. Under aerobic conditions, sediments from the shallow aquifer underlying the site mineralized radiolabeled (14C) toluene to 14CO2 with first-order...
Estimated withdrawals and use of freshwater in Vermont, 1990
M.A. Horn, Laura Medalie
1995, Water-Resources Investigations Report 93-4097
Estimated freshwater withdrawals during 1990 in Vermont totaled about 632 million gallons per day. The largest withdrawals were for thermoelectric- power generation (82 percent), industrial use (7 percent), and public supply (6 percent). Most withdrawals, 587 million gallons per day, were made from surface-water sources as compared to 44.9 million...
Environmental Setting and Implications on Water Quality, Upper Colorado River Basin, Colorado and Utah
Lori E. Apodaca, Nancy E. Driver, Verlin C. Stephens, Norman E. Spahr
1995, Water-Resources Investigations Report 95-4263
The Upper Colorado River Basin in Colorado and Utah is 1 of 60 study units selected for water-quality assessment as part of the U.S. Geological Survey's National Water-Quality Assessment program, which began full implementation in 1991. Understanding the environmental setting of the Upper Colorado River Basin study unit is important...
User's guide to PHREEQC, a computer program for speciation, reaction-path, advective-transport, and inverse geochemical calculations
D.L. Parkhurst
1995, Water-Resources Investigations Report 95-4227
PHREEQC is a computer program written in the C programming language that is designed to perform a wide variety of aqueous geochemical calculations. PHREEQC is based on an ion-association aqueous model and has capabilities for (1) speciation and saturation-index calculations, (2) reaction-path and advective-transport calculations involving specified irreversible reactions, mixing...
Simulation of stage and the the hydrologic budget of Devils Lake, Sauk County, Wisconsin
J. T. Krohelski, W. G. Batten
1995, Open-File Report 94-348
Water clarity of Devils Lake, in the Driftless Area of southwestern Wisconsin, has been decreasing because of blue-green algal blooms. An understanding of the hydrology of Devils Lake is needed to develop a mitigation plan to reduce phosphorus input. A model was developed to test the current understanding of the...
Watershed boundaries and digital elevation model of Oklahoma derived from 1:100,000-scale digital topographic maps
J. R. Cederstrand, A. H. Rea
1995, Open-File Report 95-727
This document provides a general description of the procedures used to develop the data sets included on this compact disc. This compact disc contains watershed boundaries for Oklahoma, a digital elevation model, and other data sets derived from the digital elevation model. The digital elevation model was produced using the...
Effects of 1992 farming systems on ground-water quality at the management systems evaluation area near Princeton, Minnesota
G. N. Delin, M.K. Landon, J.A. Lamb, R.H. Dowdy
1995, Water-Resources Investigations Report 95-4104
The Management Systems Evaluation Area (MSEA) program was a multiscale, interagency initiative to evaluate the effects of agricultural systems on water quality in the midwest corn belt. The primary objective of the Minnesota MSEA was to evaluate the effects of ridge-tillage practices in a corn and soybean farming system on...
An isotope hydrology study of the Kilauea volcano area, Hawaii
M. A. Scholl, S. E. Ingebritsen, C. J. Janik, J. P. Kauahikaua
1995, Water-Resources Investigations Report 95-4213
Isotope tracer methods were used to determine flow paths, recharge areas, and relative age for ground water in the Kilauea volcano area on the Island of Hawaii. Stable isotopes in rainfall show three distinct isotopic gradients with elevation, which are correlated with trade-wind, rain shadow, and high-elevation climatological patterns. Temporal...
Ground-water quality in agricultural areas, Anoka Sand Plain Aquifer, east-central Minnesota, 1984-90
M.K. Landon, G. N. Delin
1995, Water-Resources Investigations Report 95-4024
Ground-water quality in the Anoka Sand Plain aquifer was studied as part of the multiscale Management Systems Evaluation Area (MSEA) study by collecting water samples from shallow wells during August through November 1990. The sampling was conducted to: (1) aid in selection of the MSEA research area; (2) facilitate comparison...
