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Page 4585, results 114601 - 114625

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Habitat Suitability Index Models: Eastern cottontail
Arthur W. Allen
1984, FWS/OBS 82/10.66
The eastern cottontail (Sylvilagus floridanus) is the most widely distributed cottontail in North America (Chapman et al. 1982). The species is considered to be a generalist that occupies a variety of habitats from southern Canada southward into South America (Chapman et al. 1980). The eastern cottontail's range overlaps that of...
A filtration and column-adsorption system for onsite concentration and fractionation of organic substances from large volumes of water
J.A. Leenheer, T.I. Noyes
1984, Water Supply Paper 2230
A portable filtration and column-adsorption system which can concentrate suspended sediment and dissolved-aqueous organic substances onsite was developed. Organic solutes also are fractionated into hydrophobic- and hydrophilic-acid, base, and neutral fractions. Subsequent isolation of organic solutes from fraction concentrates and extraction of organic constituents in suspended sediment entrained on filter...
Sewage plume in a sand and gravel aquifer, Cape Cod, Massachusetts
Denis R. LeBlanc
1984, Water Supply Paper 2218
Secondarily treated domestic sewage has been disposed of on surface sand beds at the sewage treatment facility at Otis Air Force Base, Massachusetts, since 1936. Infiltration of the sewage through the sand beds into the underlying unconfined sand and gravel aquifer has resulted in a plume of sewage-contaminated ground water...
Hydrogeology of the Sulphur Springs area, Tampa, Florida
J. W. Stewart, L. R. Mills
1984, Water-Resources Investigations Report 83-4085
The Sulfur Springs area includes about 56 square miles in west-central Hillsborough County, Florida. The north-central part of the city of Tampa is highly urbanized; the north-west part of the area is rural or undeveloped. The area has numerous sinkholes, two of which are used as retention basins for urban...
Depth and thickness of selected units in Upper Permian, Upper Jurassic, and Lower Cretaceous rocks in southwestern Kansas
Jack Kume, Joseph M. Spinazola
1984, Water-Resources Investigations Report 83-4095
As ground-water reserves decline in the Ogallala aquifer in an area of about 17,400 square miles in 26 counties of southwestern Kansas, sandstone aquifers in underlying Upper Jurassic and Lower and Upper Cretaceous rocks may be developed to supplement or replace the Ogallala as a source of water for some...
Water-level maps of the alluvial aquifer, Northwestern Mississippi, April 1983
David M. Sumner
1984, Water-Resources Investigations Report 83-4285
Water levels were measured in about 500 wells in the Mississippi River valley alluvial aquifer in northwestern Mississippi during April 1983. Ground-water levels have declined in some areas in recent years as a result of heavy irrigation pumpage from this aquifer. Near the areas of principal recharge, along the major...
Enhanced job control language procedures for the SIMSYS2D two-dimensional water-quality simulation system
G.A. Karavitis
1984, Water-Resources Investigations Report 84-4052
The SIMSYS2D two-dimensional water-quality simulation system is a large-scale digital modeling software system used to simulate flow and transport of solutes in freshwater and estuarine environments. Due to the size, processing requirements, and complexity of the system, there is a need to easily move the system and its associated files...