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Publications

Publications from USGS science centers throughout the Southeast Region.

Filter Total Items: 10420

Toxicity of contaminated sediments in dilution series with control sediments Toxicity of contaminated sediments in dilution series with control sediments

The use of dilutions has been the foundation of our approach for assessing contaminated water, and accordingly, it may be important to establish similar or parallel approaches for sediment dilutions. Test organism responses to dilution gradients can identify the degree of necessary sediment alteration to reduce the toxicity. Using whole sediment dilutions to represent the complex...
Authors
M.K. Nelson, P.F. Landrum, G.A. Burton, S.J. Klaine, E.A. Crecelius, T.D. Byl, Duane C. Gossiaux, V.N. Tsymbal, L. Cleveland, Christopher G. Ingersoll, G. Sasson-Brickson

Toxicity of sediments and pore water from Brunswick Estuary, Georgia Toxicity of sediments and pore water from Brunswick Estuary, Georgia

A chlor-alkali plant in Brunswick, Georgia, USA, discharged >2 kg mercury/d into a tributary of the Turtle River-Brunswick Estuary from 1966 to 1971. Mercury concentrations in sediments collected in 1989 along the tributary near the chlor-alkali plant ranged from 1 to 27 μg/g (dry weight), with the highest concentrations found in surface (0–8 cm) sediments of subtidal zones in the...
Authors
Parley V. Winger, Peter J. Lasier, Harvey Geitner

Historical potentiometric surface of the Edwards-Trinity aquifer system and contiguous hydraulically connected units, west-central Texas Historical potentiometric surface of the Edwards-Trinity aquifer system and contiguous hydraulically connected units, west-central Texas

The Edwards-Trinity aquifer system is a sequence of near-surface, hydraulically connected, Cretaceous carbonate and quartzose clastic rocks that underlie about 42,000 mi2 of west-central Texas (fig. 1). The aquifer system is currently (1991) being studied as a part of the U.S. Geological Survey's Regional Aquifer-System Analysis (RASA) program, which is intended to describe the regional
Authors
Peter W. Bush, Ann F. Ardis, Kirby H. Wynn

Historical saturated thickness of the Edwards-Trinity aquifer system and selected contiguous hydraulically connected units, west-central Texas Historical saturated thickness of the Edwards-Trinity aquifer system and selected contiguous hydraulically connected units, west-central Texas

The Edwards-Trinity Regional Aquifer-System Analysis (RASA) is one of 25 completed or ongoing studies conducted by the U.S. Geological Survey on regional aquifer systems that individually provide essential quantities of ground water to large parts of the country. Underlying about 42,000 mi2 of west-central Texas, the Edwards-Trinity aquifer system extends approximately from Atascosa...
Authors
Ann F. Ardis, Rene A. Barker

1993 Annual summary: ENTERGY Lake Dardanelle fish and zebra mussel study 1993 Annual summary: ENTERGY Lake Dardanelle fish and zebra mussel study

Abstract not supplied at this time
Authors
J.N. Stoeckel, C.J. Gagen, D.O. McCollum, R.K. Beadel, J.J. Herod, S.D. Shook

Hydrogeology and simulation of ground-water flow near the Lantana Landfill, Palm Beach County, Florida Hydrogeology and simulation of ground-water flow near the Lantana Landfill, Palm Beach County, Florida

The Lantana landfill in Palm Beach County has a surface that is 40 to 50 feet above original ground level and consists of about 250 acres of compacted garbage and trash. Parts of the landfill are below the water table. Surface-resistivity measurements and water-quality analyses indicate that leachate-enriched ground water along the eastern perimeter of the landfill has moved about 500...
Authors
G.M. Russell, E. J. Wexler

Flood discharges in the upper Mississippi River basin, 1993 Flood discharges in the upper Mississippi River basin, 1993

From mid-June through early August 1993, flooding was severe in the upper Mississippi River Basin following a wet-weather pattern that persisted over the area for at least 6 months before the flood. The magnitude and timing of several intense rainstorms in late June and July, combined with wet antecedent climatic conditions, were the principal causes of the flooding. Flood-peak...
Authors
Charles Parrett, Nick B. Melcher, Robert W. James

Approximate changes in water levels in wells completed in the Chicot and Evangeline aquifers, 1990-93 and 1992-93, in Fort Bend County and adjacent areas, Texas Approximate changes in water levels in wells completed in the Chicot and Evangeline aquifers, 1990-93 and 1992-93, in Fort Bend County and adjacent areas, Texas

This report was prepared in cooperation with the Fort Bend Subsidence District and presents data on water-level changes in wells during 1990-93 and 1992-93 in the Chicot and Evangeline aquifers (figs. 1-4) in Fort Bend County. Water-level changes maps were prepared previously by Locke (1990), and Locke and Santos (1992) for both aquifers, and by Wesselman (1972) for the Chicot aquifers.
Authors
Horatio X. Santos, Dana L. Barbie
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