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Water Resources Investigations 01-4122

Geohydrology, Water Quality, and Simulation of Ground-Water Flow in the Vicinity of a Former Waste-Oil Refinery near Westville, Indiana, 1997–2000

By Richard F. Duwelius,1 Douglas J. Yeskis,2 John T. Wilson,1 and Bret A. Robinson1

1 U.S. Geological Survey, Indianaplis, Indiana
2 U.S. Environmental Protection Agency, Region 5, Chicago, Illinois

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In 1997, the U.S. Environmental Protection Agency (USEPA) began a field investigation of the environmental conditions at a former waste-oil refinery in Westville, Ind. As part of this investigation, the U.S. Geological Survey (USGS) completed a study of geohydrology and water quality in the vicinity of the refinery. Previous investigations had detected contamination in soils at the site (ATEC Associates, Inc., 1985) and in off-site ground water (Dames and Moore, Inc., 1996). The site was listed as a Superfund site by USEPA in 1999.

The USGS study included installing monitoring wells, geophysical logging, aquifer testing, measuring ground-water and surface-water levels, measuring streamflow, and collecting water-quality samples. On the basis of a conceptualization of geohydrologic conditions developed from analysis of the collected data, the USGS constructed a ground-water-flow model for the study area. The calibrated model was used to investigate possible mechanisms of contaminant release, the effects of increased ground-water pumpage from nearby water-supply wells on contaminant distribution, and the capabil­ity of remediation by pumping from capture wells.

For additional information contact:
District Chief,
U.S. Geological Survey
5957 Lakeside Boulevard
Indianapolis, IN 46278

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Suggested citation:
Duwelius, R.F., Yeskis, D.J., Wilson, J.T., and Robinson, B.A., 2001, Geohydrology, water quality, and simulation of ground-water flow in the vicinity of a former waste-oil refinery near Westville, Indiana, 1997–2000: U.S. Geological Survey Water Resources Investigations Report 01-4122.

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