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Page 4705, results 117601 - 117625

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Publication Extents

Not all publications have extents, not all extents are completely accurate
The formation and failure of natural dams
J. E. Costa, R. L. Schuster
1987, Open-File Report 87-392
Of the numerous kinds of dams that form by natural processes, dams formed from landslides, glacial ice, and neoglacial moraines present the greatest threat to people and property. The most common types of mass movements that form landslide dams are rock and debris avalanches, rock and soil slumps and slides,...
Water-resources activities of the Louisiana District in fiscal years 1986-87
E. A. Ellsworth (compiler)
1987, Open-File Report 87-225
The U.S. Geological Survey conducts three types of water resources activities in Louisiana - data collection, investigations, and research. These activities are conducted, in large part, through cooperation with other Federal, State, and local agencies. Water-resources activities undertaken from October 1, 1985 to September 30, 1987 are described. Specifically, the...
Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September 1986
R. M. Spechler
1987, Open-File Report 87-36
This map shows the potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity for September 1986. The Upper Floridan aquifer is the principal source of potable water in the area. Water level measurements were made on approximately 1,000 wells and on several...
Water-resources activities of the U.S. Geological Survey in Pennsylvania, 1986-87
R. E. Helm
R. E. Helm, editor(s)
1987, Open-File Report 87-475
The U.S. Geological Survey 's water-resources activities in Pennsylvania are described. Some activities are topics of general interest to the water resources community while others are related to current water issues. The report also describes the mission of the Water Resources Division of the U. S. Geological Survey, and program...
Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September 1987
L. A. Bradner
1987, Open-File Report 87-688
This map shows the potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity for September 1987. The Upper Floridan aquifer is the principal source of potable water in the area. Water level measurements were made on approximately 1,000 wells and on several...
Operation of hydrologic data collection stations by the U.S. Geological Survey in 1987
Alberto Condes de la Torre
1987, Open-File Report 87-563
The U.S. Geological Survey operates hydrologic data collection stations nationwide which serve the needs of all levels of government, the private sector, and the general public, for water resources information. During fiscal year 1987, surface water discharge was determined at 10,624 stations; stage data on streams, reservoirs, and lakes were...
Iowa ground-water quality
R.C. Buchmiller, P. J. Squillace, R.D. Drustrup
1987, Open-File Report 87-725
The population served by ground-water supplies in Iowa (fig. L4) is estimated to be about 2,392,000, or 82 percent of the total population (U.S. Geological Survey, 1985, p. 211). The population of Iowa is distributed fairly uniformly throughout the State (fig. IB), with 59 percent residing in rural areas or...
Water-resources activities of the U.S. Geological Survey in North Dakota, fiscal year 1986
1987, Open-File Report 87-530
This report was prepared to inform interested Federal, State, and local agencies and private individuals of the activities of the Water Resources Division in the State. All ongoing water-resources projects in North Dakota in fiscal year 1986 are listed. Information on each project includes objectives, approach, progress in 1985, plans...
Ground-water levels in water years 1984-86 and estimated ground-water pumpage in water years 1984-85, Carson Valley, Douglas County, Nevada
D.L. Berger
1987, Open-File Report 86-539
Tabulations of groundwater level measurements made during the water years 1984-86 and summaries of estimated pumpage for water years 1984 and 1985 in Carson valley, Douglas County, Nevada, are included in this report. The data are being collected to provide a record of long-term groundwater changes and pumpage estimates that...