Use of frequency analysis and the extended streamflow prediction procedure to estimate evacuation dates for the joint-use pool of Pueblo Reservoir, Colorado
Gerhard Kuhn, R.C. Nickless
1994, Water-Resources Investigations Report 94-4054
Part of the storage space of Pueblo Reservoir consists of a 65,950 acre-foot joint-use pool (JUP) that can be used to provide additional conservation capacity from November 1 to April 14; however, the JUP must be evacuated by April 15 and used only for flood-control capacity until November 1. A...
Water quality of the Potomac-Raritan-Magothy aquifer system in the Coastal Plain, west-central New Jersey
E. M. Ervin, L. M. Voronin, T. V. Fusillo
1994, Water-Resources Investigations Report 94-4113
No abstract available....
Agricultural pesticides in six drainage basins used for public water supply in New Jersey, 1990
Tamara Ivahnenko, D.E. Buxton
1994, Water-Resources Investigations Report 93-4101
A reconnaissance study of six drainage basins in New Jersey was conducted to evaluate the presence of pesticides from agricultural runoff in surface water. In the first phase of the study, surface-water public-supply drainage basins throughout New Jersey that could be affected by pesticide applications were identified by use of...
User's guide to revised method-of-characteristics solute-transport model (MOC--version 31)
Leonard F. Konikow, G.E. Granato, G.Z. Hornberger
1994, Water-Resources Investigations Report 94-4115
The U.S. Geological Survey computer model to simulate two-dimensional solute transport and dispersion in ground water (Konikow and Bredehoeft, 1978; Goode and Konikow, 1989) has been modified to improve management of input and output data and to provide progressive run-time information. All opening and closing of files are now done...
Hydrogeology and simulation of ground-water flow at Arnold Air Force Base, Coffee and Franklin counties, Tennessee
C.J. Haugh, E.N. Mahoney
1994, Water-Resources Investigations Report 93-4207
The U.S. Air Force at Arnold Air Force Base (AAFB), in Coffee and Franklin Counties, Tennessee, is investigating ground-water contamination in selected areas of the base. This report documents the results of a comprehensive investigation of the regional hydrogeology of the AAFB area. Three aquifers within the Highland Rim aquifer...
Description and application of capture zone delineation for a wellfield at Hilton Head Island, South Carolina
J. E. Landmeyer
1994, Water-Resources Investigations Report 94-4012
Ground-water capture zone boundaries for individual pumped wells in a confined aquffer were delineated by using groundwater models. Both analytical and numerical (semi-analytical) models that more accurately represent the $round-water-flow system were used. All models delineated 2-dimensional boundaries (capture zones) that represent the areal extent of groundwater contribution to a...
Geologic map of the MTM-15147 quadrangle, Mangala Valles region of Mars
J. R. Zimbelman, R. A. Craddock, Ronald Greeley
1994, IMAP 2402
The map area is in the Mangala-Memnonia region (fig. 1), which contains remarkably diverse geologic features and terrain types. Studies of the Mariner...
Use of a precipitation-runoff model for simulating effects of forest management on streamflow in 11 small drainage basins, Oregon Coast Range
J. C. Risley
1994, Water-Resources Investigations Report 93-4181
The Precipitation-Runoff Modeling System (PRMS) model of the U.S. Geological Survey was used to simulate the hydrologic effects of timber management in 11 small, upland drainage basins of the Coast Range in Oregon. The coefficients of determination for observed and simulated daily flow during the calibration periods ranged from 0.92...
Estimation of ground-water recharge from precipitation, runoff into drywells, and on-site waste-disposal systems in the Portland Basin, Oregon and Washington
D.T. Snyder, D. S. Morgan, T.S. McGrath
1994, Water-Resources Investigations Report 92-4010
The average recharge rate in the Portland Basin, in northwestern Oregon and southwestern Washington, is estimated to be about 22.0 inches per year. Of that amount, precipitation accounts for about 20.8 inches per year, runoff into drywells 0.9 inches per year, and on-site waste disposal about 0.4 inches per year....
Analysis of data on nutrients and organic compounds in ground water in the upper Snake River basin, Idaho and western Wyoming, 1980-91
Michael G. Rupert
1994, Water-Resources Investigations Report 94-4135
Nutrient and organic compound data from the U.S. Geological Survey and the U.S. Environmental Protection Agency STORET data bases provided information for development of a preliminary conceptual model of spatial and temporal ground-water quality in the upper Snake River Basin. Nitrite plus nitrate (as nitrogen; hereafter referred to as nitrate)...
Relations of changes in wastewater-treatment practices to changes in stream-water quality during 1978-88 in the Chicago area, Illinois, and implications for regional and national water-quality assessments
P. J. Terrio
1994, Water-Resources Investigations Report 93-4188
A study in the upper Illinois River Basin defined relations between changes in wastewater-treatment practices and changes in stream-water quality on the basis of available information. These relations were examined for five large wastewater-treatment plants in the Chicago area, Illinois. At the three largest treatment plants, two major changes in...
Hydrogeologic framework and simulation of shallow ground-water flow in the vicinity of a hazardous-waste landfill near Pinewood, South Carolina
D.A. Vroblesky
1994, Water-Resources Investigations Report 93-4185
The geologic units in the vicinity of a hazardous- waste landfill near Pinewood, S.C., were divided into hydrogeologic units on the basis of lithologic and hydrologic characteristics. A quasi-3- dimensional finite-difference ground-water-flow model was constructed to represent the hydrogeologic flamework. The simulation results indicate that if non-reactive constituents were released...
Hydrogeology, water quality, and potential for contamination of the Upper Floridan aquifer in the Silver Springs ground-water basin, central Marion County, Florida
G. G. Phelps
1994, Water-Resources Investigations Report 92-4159
The Upper Floridan aquifer, composed of a thick sequence of very porous limestone and dolomite, is the principal source of water supply in the Silver Springs ground-water basin of central Marion County, Florida. The karstic nature of the local geology makes the aquifer susceptible to contaminants from the land surface....
Quality of water and chemistry of bottom sediment in the Rillito Creek basin, Tucson, Arizona, 1986-92
Saeid Tadayon, C.F. Smith
1994, Water-Resources Investigations Report 94-4114
Data were collected on physical properties and chemistry of 4 surface water, l4 ground water, and 4 bottom sediment sites in the Rillito Creek basin where artificial recharge of surface runoff is being considered. Concentrations of suspended sediment in streams generally increased with increases in streamflow and were higher during...
Water resources of Lincoln and Union counties, South Dakota
C. A. Niehus
1994, Water-Resources Investigations Report 93-4195
Water resources of Lincoln and Union Counties occur as surface water in streams and lakes and ground water in ten major glacial and one major bedrock aquifers. The major surface-water sources are the Missouri and Big Sioux Rivers. Glacial aquifers contain about 4 million acre-feet of water in storage; 1.5...
Water resources of Duval County, Florida
G. G. Phelps
1994, Water-Resources Investigations Report 93-4130
The report describes the hydrology and water resources of Duval County, the development of its water supplies, and water use within the county. Also included are descriptions of various natural features of the county (such as topography and geology), an explanation of the hydrologic cycle, and an interpretation of the...
Quality of ground water around Vadnais Lake and in Lambert Creek watershed, and interaction of ground water with Vadnais Lake, Ramsey County, Minnesota
J. F. Ruhl
1994, Water-Resources Investigations Report 94-4062
Vadnais Lake is located in northern Ramsey County, Minnesota. The lake is managed by the St. Paul Water Utility for storage of municipal water supplies that are provided to residents of St. Paul and surrounding communities. In recent years, algal blooms in Vadnais Lake have caused taste and odor problems...
Salt budget for West Pond, Utah, April 1987 to June 1989
S.R. Wold, K.M. Waddell
1994, Water-Resources Investigations Report 93-4028
During operation of the West Desert pumping project, April 10. 1987, to June 30, 1989, data were collected as part of a monitoring program to evaluate the effects of pumping brine from Great Salt Lake into West Pond in northern Utah. The removal of brine from Great Sail was part...
Water-resources data for the Valdosta area, south-central Georgia, 1961-93
James B. McConnell, Eurybiades Busenberg, Niel Plummer
1994, Open-File Report 94-350
The Upper Floridan aquifer is the sole source of water supply for the city of Valdosta, Ga., and much of the surrounding area. Users and water-resources managers and developers are concerned about the quality of water in the aquifer. The water quality of a large part of the Upper Floridan...
Ground-water quality and geochemistry in Carson and Eagle Valleys, western Nevada and eastern California
Alan H. Welch
1994, Open-File Report 93-33
Aquifers in Carson and Eagle Valleys are an important source of water for human consumption and agriculture. Concentrations of major constituents in water from the principal aquifers on the west sides of Carson and Eagle Valleys appear to be a result of natural geochemical reactions with minerals derived primarily from...
Willie hace una excursion al campo; un libro de colorear; un libro de colorear
Donald V. Arvin, Daniel Translated into Spanish by Lucy
1994, Open-File Report 94-352
Chemical, geologic, and hydrologic data from the Little Colorado River basin, Arizona and New Mexico, 1988-91
Gregory G. Fisk, S.A. Ferguson, D.R. Rankin, Laurie Wirt
1994, Open-File Report 94-356
In June 1988, The U.S. Geological Survey began a 4-year study of the occurrence and movement of radionuclides and other chemical constituents in ground water and surface water in the Little Colorado River basin in Arizona and New Mexico. Radionuclides and other chemical constituents occur naturally in water, rock, and...
Pleistocene fresh-water ostracodes from a sediment core in Butte Valley, Siskiyou County, California
Claire Carter
1994, Open-File Report 94-641
Field guide for collecting and processing stream-water samples for the National Water-Quality Assessment Program
Larry R. Shelton
1994, Open-File Report 94-455
The U.S. Geological Survey's National Water-Quality Assessment program includes extensive data- collection efforts to assess the quality of the Nations's streams. These studies require analyses of stream samples for major ions, nutrients, sediments, and organic contaminants. For the information to be comparable among studies in different parts of the Nation,...
Ground-water quality and geochemistry in Dayton, Stagecoach, and Churchill Valleys, western Nevada
James M. Thomas, Stephen J. Lawrence
1994, Open-File Report 93-356
The U.S. Geological Survey investigated the quality of ground water in the Dayton, Stagecoach, and Churchill Valleys as part of the Carson River Basin National Water-Quality Assessment (NAWQA) pilot study. Four aquifer systems have been de- lineated in the study area. Principal aquifers are unconsolidated deposits at altitudes of less...
