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Page 2057, results 51401 - 51425

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Ground-water data for Michigan 1983
G.C. Huffman
1984, Open-File Report 84-623
Water levels, locations, depths, and aquifers tapped are given for 115 observation wells. Tabulated data include extremes of water levels for 1983 and for the period of record, pumpage of most major ground-water users in the State, and quality data on selected wells. The largest reported user of ground-water, the...
Geohydrology of the valley-fill aquifer in the Cohocton area, upper Cohocton River, Steuben County, New York
David B. Terry, Timothy S. Pagano, Martha L. Shaw, Arlynn W. Ingram
1984, Water-Resources Investigations Report 85-4040
The Cohocton valley-fill aquifer, composed of outwash, kame, and alluvial sand and gravel, is highly productive and is in hydraulic contact with the Cohocton River. Potential well yields range from 50 to more than 1,000 gallons per minute. Most of the aquifer is under shallow water-table conditions and vulnerable to...
Magnitude and frequency of high flows of unregulated streams in Kansas
P. R. Jordan
1984, Open-File Report 84-453
Information on high-flow magnitude and frequency is needed for hydro-logic evaluation of such factors as flood-control storage and dam safety. High-flow information given in this report is for streamflows unaffected by major regulation, such as by large reservoirs. High-flow magnitude and frequency data are given for 91 streamflow-gaging stations through-out...
Ground-water models as a management tool in Florida
C. B. Hutchinson
1984, Water-Resources Investigations Report 84-4016
Highly sophisticated computer models provide powerful tools for analyzing historic data and for simulating future water levels, water movement, and water chemistry under stressed conditions throughout the ground-water system in Florida. Models that simulate the movement of heat and subsidence of land in response to aquifer pumping also have potential...
A reconnaissance study of saltwater contamination in the El Dorado aquifer, Union County, Arkansas
Matthew E. Broom, T. F. Kraemer, William V. Bush
1984, Water-Resources Investigations Report 84-4012
Since 1960 chloride concentrations in the El Dorado aquifer have increased near El Dorado, Arkansas. The aquifer is a major source for municipal and industrial water supply in Union County. Greatest withdrawal occurs near El Dorado. Because of this withdrawal, the potentiometric surface at El Dorado has been lowered more...
Hydrologic data for urban studies in the Austin, Texas, metropolitan area, 1982
R.M. Slade, J.E. Veenhuis, M.E. Dorsey, S.L. Stewart, L.M. Ruiz
1984, Open-File Report 84-61
Hydrologic investigations of urban watersheds in Texas were begun by the U.S. Geological Survey in 1954. Studies are now in progress in Austin, and Houston. Studies have been completed in the Dallas, Fort Worth, and San Antonio areas. The Geological Survey, in cooperation with the Texas Department of Water Reources, began...
Geohydrologic framework of the Snake River plain, Idaho and eastern Oregon
R.L. Whitehead
1984, Open-File Report 84-51
This report is one in a series resulting from the U.S. Geological Survey's Snake River Plain RASA (Regional Aquifer System Analysis) study that was initiated in October 1979. As stated by Lindholm (1981), the purpose of the study was to (1) refine knowledge of the regional ground-water flow system, (2) determine...
Definition of boundary and initial conditions in the analysis of saturated ground-water flow systems; an introduction
O.L. Franke, T. E. Reilly, G.D. Bennett
1984, Open-File Report 84-458
Accurate definition of boundary and initial conditions is an essential part of conceptualizing and modeling ground-water flow systems. This report explains the properties of the seven most common boundary conditions encountered in ground-water systems and discusses major aspects of their application. It also discusses the significance and specification of initial...
Uses, funding, and availability of continuous streamflow data in Montana
R.R. Shields, M. K. White
1984, Open-File Report 84-862
This report documents the results of a study of the uses, funding, and availability of continuous streamflow data collected and published by the U.S. Geological Survey in Montana. Data uses and funding sources are identified for the 218 continuous streamflow gages currently (1984) being operated. These stations are supported by...
Bathymetric map of Lydonia Canyon, U.S. Atlantic Outer Continental Shelf
Bradford Butman, John A. Moody
1984, Miscellaneous Field Studies Map 1710
Lydonia Canyon is one of several large submarine canyons that indent the eastern U.S. Continental Shelf along the southern flank of Georges Bank (Index map).  This bathymetric map of the upper part of Lydonia Canyon (water depths shallower than about 2,00 m) was prepared as part of a study of...