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Density comparison method for the measurement of isotopic variations in prepared waters
Joseph Howard McCarthy Jr., Thomas Seward Lovering, Herbert Williams Lakin
1965, Open-File Report 65-103
The falling-drop method of density determination has been modified so that the densities of a standard and a sample water are compared simultaneously. A constant temperature bath that does not vary more than 0.0001°C and an accurate double micropipet are described. The method has sufficient sensitivity and precision to distinguish...
Specific yield - laboratory experiments showing the effect of time on column drainage
Robert C. Prill, A.I. Johnson, Donald Arthur Morris
1965, Water Supply Paper 1662-B
The increasing use of ground water from many major aquifers in the United States has required a more thorough understanding of gravity drainage, or specific yield. This report describes one phase of specific yield research by the U.S. Geological Survey's Hydrologic Laboratory in cooperation with the California Department of Water...
Water resources of the Humboldt River Valley near Winnemucca, Nevada
Philip M. Cohen
1965, Water Supply Paper 1795
This report, resulting from studies made by the U.S. Geological Survey as part of the interagency Humboldt River Research Project, describes the qualitative and quantitative relations among the components of the hydrologic system in the Winnemucca Reach of the Humboldt River valley. The area studied includes the segment of the...
Gravity survey in southern Cascade Range, California
Thomas R. LaFehr
1965, Open-File Report 65-92
A regional gravity survey in the southern Cascade Range and environs was made during the summers of 1962 and 1963. Twelve hundred gravity stations were established within the area enclosed by lat 41°00'N, lat 42°301N, long 120°00'W, and long 124°00'W. Most of the stations are concentrated in an area overlapping...
The operation and maintenance of a crest-stage gaging station
John Friday
1965, Open-File Report 66-45
The purpose of this manual is to familiarize field personnel with the procedures involved in operating crest-stage gaging stations. Crest-stage gages are used to determine the elevation of a peak stage occurring at a specific location in a stream. A crest-stage gage consists of a length of 14-inch diameter pipe installed...
Geology and ground-water resources of Waushara County, Wisconsin
William Kelly Summers
1965, Water Supply Paper 1809-B
Abundant ground water for irrigation is available in the outwash deposits in western Waushara County, and many more large-capacity wells can be developed in these deposits without seriously lowering the water level. Pumping for irrigation temporarily lowers water levels in the vicinity of the wells but has not lowered regional...