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Filter Total Items: 1,536
Year Published: 1995

Filtration of water-sediment samples for the determination of organic compounds

This report describes the equipment and procedures used for on-site filtration of surface-water and ground-water samples for determination of organic compounds. Glass-fiber filters and a positive displacement pumping system are suitable for processing most samples for organic analyses. An optional system that uses disposable in-line membrane...

Sandstrom, Mark W.
Attribution: , Water
Filtration of water-sediment samples for the determination of organic compounds; 1995; WRI; 95-4105; Sandstrom, Mark W.

Year Published: 1995

Effects of combined-sewer overflows and urban runoff on the water quality of Fall Creek, Indianapolis, Indiana

In 1986, the U.S. Geological Survey and the Indianapolis Department of Public Works began a study to evaluate the effects of combined-sewer overflows and urban runoff discharging to Fall Geek on the White River. This report describes the effects of combined-sewer overflows and urban runoff on the water quality of Fall Creek during summer 1987 by...

Martin, Jeffrey D.
Effects of combined-sewer overflows and urban runoff on the water quality of Fall Creek, Indianapolis, Indiana; 1995; WRI; 94-4066; Martin, J. D.

Year Published: 1995

Stable isotopes in mid-ocean ridge hydrothermal systems: Interactions between fluids, minerals, and organisms

Studies of abundance variations of light stable isotopes in nature have had a tremendous impact on all aspects of geochemistry since the development, in 1947, of a gas source isotope ratio mass spectrometer capable of measuring small variations in stable isotope ratios (Nice, 1947]. Stable isotope geochemistry is now a mature field, as witnessed...

Humphries, S.D.; Zierenberg, Robert A.; Mullineaux, Lauren S.; Thomson, Richard E.; Shanks, Wayne C.; Böhlke, John Karl; Seal, Robert R.
Attribution: Water

Year Published: 1995

Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of chlorinated pesticides in aquatic tissue by capillary-column gas chromatography with electron-capture detection

A method for the determination of chlorinated organic compounds in aquatic tissue by dual capillary-column gas chromatography with electron-capture detection is described. Whole-body-fish or corbicula tissue is homogenized, Soxhlet extracted, lipid removed by gel permeation chromatography, and fractionated using alumina/silica adsorption...

Leiker, Thomas J.; Madsen, J.E.; Deacon, J.R.; Foreman, W.T.
Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of chlorinated pesticides in aquatic tissue by capillary-column gas chromatography with electron-capture detection; 1995; OFR; 94-710W; Leiker, Thomas J.; Madsen, J. E.; Deacon, J. R.; Foreman, W. T.

Year Published: 1995

Water Resources Data, California, Water Year 1994. Volume 1. Southern Great Basin from Mexican Border to Mono Lake Basin, and Pacific Slope Basins from Tijuana River to Santa Maria River

Water resources data for the 1994 water year for California consist of records of stage, discharge, and water quality of streams; stage and contents in lakes and reservoirs; and water levels and water quality in wells. Volume 1 contains (1) discharge records for 143 streamflow-gaging stations, 15 crest-stage partial-record streamflow stations; (2...

Hayes, P.D.; Agajanian, J.A.; Rockwell, G.L.
Attribution: Water
Water Resources Data, California, Water Year 1994. Volume 1. Southern Great Basin from Mexican Border to Mono Lake Basin, and Pacific Slope Basins from Tijuana River to Santa Maria River; 1995; WDR; CA-94-1; Hayes, P. D.; Agajanian, J. A.; Rockwell, G. L.

Year Published: 1995

Water Resources Data, California, Water Year 1994. Volume 2. Pacific Slope Basins from Arroyo Grande to Oregon State Line except Central Valley

Water-resources data for the 1994 water year for California consist of records of stage, discharge, and water quality of streams; stage and contents in lakes and reservoirs; and water levels and water quality in wells. Volume 2 contains discharge records for 113 streamflow-gaging stations, 1 low-flow partial-record streamflow station, and 2...

Ayers, Wendell Y.
Attribution: Water
Water Resources Data, California, Water Year 1994. Volume 2. Pacific Slope Basins from Arroyo Grande to Oregon State Line except Central Valley; 1995; WDR; CA-94-2; Ayers, Wendell. Y.

Year Published: 1995

Water Resources Data, California, Water Year 1994. Volume 3. Southern Central Valley Basins and the Great Basin from Walker River to Truckee River

Water resources data for the 1994 water year for California consist of records of stage, discharge, and water quality of streams; stage and contents in lakes and reservoirs; and water levels and water quality in wells. Volume 3 contains discharge records for 178 streamflow-gaging stations, 3 crest-stage partial-record streamflow stations and 13...

Anderson, S.W.; Hayes, P.D.; Rockwell, G.L.
Attribution: Water
Water Resources Data, California, Water Year 1994. Volume 3. Southern Central Valley Basins and the Great Basin from Walker River to Truckee River; 1995; WDR; CA-94-3; Anderson, S. W.; Hayes, P. D.; Rockwell, G. L.

Year Published: 1995

Water Resources Data, California, Water Year 1994. Volume 4. Northern Central Valley Basins and the Great Basin from Honey Lake Basin to Oregon State Line

Water-resources data for the 1994 water year for California consist of records of stage, discharge, and water quality of streams, stage and contents in lakes and reservoirs, and water levels and water quality in wells. Volume 4 contains discharge records for 187 gaging stations, stage and contents for 47lakes and reservoirs, precipitation data for...

Friebel, M.F.; Markham, K.L.; Anderson, S.W.; Rockwell, G.L.
Attribution: Water
Water Resources Data, California, Water Year 1994. Volume 4. Northern Central Valley Basins and the Great Basin from Honey Lake Basin to Oregon State Line; 1995; WDR; CA-94-4; Friebel, M. F.; Markham, K. L.; Anderson, S. W.; Rockwell, G. L.

Year Published: 1995

Water Resources Data, New Mexico, Water Year 1994

Water-resources data for the 1994 water year for New Mexico consist of records of discharge and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality in wells and springs. This report contains discharge records for 184 gaging stations; stage and contents for 26 lakes and reservoirs...

Borland, J.P.; Ong, Kim
Attribution: Water
Water Resources Data, New Mexico, Water Year 1994; 1995; WDR; NM-94-1; Borland, J.P.; Ong, Kim

Year Published: 1994

Overview of the National Water-Quality Assessment Program

The Nation's water resources are the basis for life and our economic vitality. These resources support a complex web of human activities and fishery and wildlife needs that depend upon clean water. Demands for good-quality water for drinking, recreation, farming, and industry are rising, and as a result, the American public is concerned about the...

Leahy, P.P.; Thompson, T.H.
Attribution: Water
Overview of the National Water-Quality Assessment Program; 1994; OFR; 94-70; Leahy, P.P.; Thompson, T.H.

Year Published: 1994

Directions of ground-water flow and locations of ground-water divides in the Lost River Watershed near Orleans, Indiana

The U.S. Geological Survey, in cooperations with the U.S. Army Corps of Engineers, conducted a study during October 1993-April 1994 to improve an understanding of the hydrology of the Lost River watershed near Orleans, Ind. Elements of the study included: (1) constructing a map of the composite ground-water potentiometric-surface of the study area...

Bayless, E. Randall; Taylor, C.J.; Hopkins, M.S.
Directions of ground-water flow and locations of ground-water divides in the Lost River Watershed near Orleans, Indiana; 1994; WRI; 94-4195; Bayless, E. Randall; Taylor, C. J.; Hopkins, M. S.

Year Published: 1994

Subsidence and carbon fluxes in the Sacramento/San Joaquin Delta, California

The Sacramento/San Joaquin Delta was once tidal marshland and was formed by the confluence of the Sacramento and the San Joaquin Rivers. The delta covers more than 1,000 square miles and is bordered by the major population centers of the San Francisco Bay area, Sacramento, and Stockton (fig. 1). The delta took its current form by the 1930's when...

Attribution: Water
Subsidence and carbon fluxes in the Sacramento/San Joaquin Delta, California; 1994; FS; 049-94; U.S. Geological Survey