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164549 results.

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Page 4994, results 124826 - 124850

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Water resources of the Makah Indian Reservation, Washington
N. P. Dion, Kenneth Lyle Walters, L. M. Nelson
1980, Water-Resources Investigations Report 80-15
The residents of the Makah Indian Reservation depend on the streams of the area for their fisheries and domestic water supply. The temporal distribution of streamflow in the study area is closely related to the amount and distribution of rainfall. In a year of average precipitation about three-quarters of the...
A water-quality monitoring network for Vallecitos Valley, Alameda County, California
C. D. Farrar
1980, Water-Resources Investigations Report 80-59
A water-quality monitoring network is proposed to detect the presence of and trace the movement of radioisotopes in the hydrologic system in the vicinity of the Vallecitos Nuclear Center. The source of the radioisotopes is treated industrial wastewater from the Vallecitos Nuclear Center that is discharged into an unnamed tributary...
A statistical analysis of the quality of surface water in Nebraska
R. A. Engberg
1980, Water-Resources Investigations Report 80-43
This report provides descriptive statistics for 29 chemical or biological constituents for 109 stream sites in Nebraska sampled by the U.S. Geological Survey beginning in 1946. Also provided for each site are regression equations relating specific conductance to each of 12 chemical constituents and a regression equation relating specific conductance...
Simulated water-level declines near Marienthal, west-central Kansas
Lloyd E. Dunlap
1980, Water-Resources Investigations Report 80-39
Intensive study in an area of 12-square miles near Marienthal, Kansas, has shown a decrease of 30 to 50 percent in saturated thickness of the Ogallala Formation since the development of irrigation. Projections from a digital model indicated the additional water-level declines that might occur from 1978 to 1989 if...
Sediment transport of streams tributary to San Francisco, San Pablo, and Suisun Bays, California, 1909-66
George Porterfield
1980, Water-Resources Investigations Report 80-64
A review of historical sedimentation data is presented, results of sediment-data collection for water years 1957-59 are summarized, and long-term sediment-discharge estimates from a preliminary report are updated. Comparison of results based on 3 years of data to those for the 10 water years, 1957-66, provides an indication of the...
Effects of urbanization on the water quality of lakes in Eagan, Minnesota
M. A. Ayers, G. A. Payne, Mark A. Have
1980, Water-Resources Investigations Report 80-71
Water-quality characteristics of 17 lakes and ponds in the city of Eagan were described from data collected from 1972 through 1978. The data showed that differences in water quality between lakes were related to differences in the percentage of urbanization. However, water-quality variations within each lake were affected more by...