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Page 5480, results 136976 - 137000

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Occurrence of pesticide residues in four streams draining different land-use areas in Pennsylvania
John F. Truhlar, Lloyd A. Reed
1975, Water-Resources Investigations Report 75-6
Samples of water, bed material, fish, and soil were collected in four small drainage basins in Pennsylvania in 1969-71 and analyzed to determine the concentrations of chlorinated-hydrocarbon insecticides. Water samples only were also analyzed for phenoxy-acid herbicides. Each basin studied represents a predominant land-use classification—forested, general farming, residential, and orchard...
Geologic map of the Mount Abbot quadrangle, central Sierra Nevada, California
John P. Lockwood, Phillip A. Lydon
1975, Geologic Quadrangle 1155
The Mount Abbot quadrangle comprises about 240 square miles of high montane to alpine terrain straddling the Sierra Nevada crest between Fresno and Bishop, California. About three-fourths of the quadrangle lies in the John Muir Wilderness, and the famous John Muir Trail, travelled by thousands of vacationers each summer, crosses...
Some limnological aspects of 20 selected lakes in Eagan and Apple Valley, Minnesota
M.R. Have
1975, Open-File Report 75-528
Selected physical, chemical, and biological parameters were determined to assess the quality of 20 lakes in the cities of Eagan and Apple Valley, Minn. All the lakes are eutrophic except Holland and Fish Lakes, which are mesotrophic. Some lakes (including Fish Lake) have storm sewer inlets but are not discernibly...
Environmental tritium in the Edwards Aquifer, central Texas 1963-71
Frederick Joseph Pearson, Paul L. Rettman, T.A. Wyerman
1975, Open-File Report 74-362
Tritium concentrations of samples from 50 wells and springs in the Edwards aquifer in the San Antonio area of Texas have been analysed. Tritium now in the aquifer is partly natural cosmic ray produced tritium, but most is tritium produced by atmospheric thermonuclear tests in the 1950's and early 1960's....
Geochemical soil studies in the Cotter Basin area, Lewis and Clark County, Montana
D. J. Grimes, Robert L. Earhart
1975, Open-File Report 75-72
Geochemical sampling in an area of abnormal vegetation in the Cotter basin area, Lewis and Clark County, Montana, shows anomalously high concentrations of Cu, Pb, Ag, Zn, and Au in the soil. The singular presence of a particular plant species growing in the highly anomalous zone merits further investigation for...
Summary appraisals of the nation's ground-water resources – Upper Mississippi region
R. M. Bloyd
1975, Professional Paper 813-B
The Upper Mississippi Region in general is rich in water-surface water is plentiful, and ground water is a large, important, and manageable resource. Total potable water in storage in the outwash and alluvial aquifers of the Mississippi River valley and the subbasins is about 45,000 billion gallons. This is about...
Water resources of the Huron River Basin, southeastern Michigan
R.W. Larson, William Burrows Allen, S.D. Hanson
1975, Hydrologic Atlas 514
This hydrologic atlas represents a part of a comprehensive study of the water resources of southeastern Michigan. Its purpose is to provide information on (1) physical features of the Huron River and its tributaries, (2) characteristics of streamflow, (3) quality of ground and surface water, and (4) availability of ground...