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Postflood occurrence of selected agricultural chemicals and volatile organic compounds in near-surface unconsolidated aquifers in the upper Mississippi River Basin, 1993

by Kolpin, Dana W.
Published: U.S. G.P.O. : U.S. Dept. of the Interior, U.S. Geological Survey ; Free on application to the USGS Information Services [distributor], 1995

Description: vi, 20 pages : illustrations (some color), maps ; 28 cm.

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Herbicides and nitrate in near-surface aquifers in the midcontinental United States, 1991

by Kolpin, Dana W.
Published: U.S. G.P.O. ; For sale by USGS Map Distribution, 1994

Description: v, 34 pages : illustrations, maps ; 28 cm.

Book

Time of travel and dispersion in a selected reach of Roberts Creek, Clayton County, Iowa

by Kolpin, Dana W.
Published: U.S. Dept. of the Interior, U.S. Geological Survey ; Books and Open-File Reports [distributor], 1992

Description: iv, 16 pages : illustrations, map ; 28 cm.

Book

Work plan for regional reconnaissance for selected herbicides and nitrate in ground water of the mid-continent United States, 1991

by Kolpin, Dana W.
Published: U.S. Geological Survey ; Books and Open-File Reports [distributor], 1991

Description: iv, 18 pages : illustrations, maps ; 28 cm.

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Hydrogeologic, water-quality, and land-use data for the reconnaissance of herbicides and nitrate in near-surface aquifers of the midcontinental United States, 1991

by Kolpin, Dana W.
Published: U.S. Dept. of the Interior, U.S. Geological Survey ; Books and Open-File Reports [Section, distributor], 1993

Description: iv, 61 pages : illustrations, map ; 28 cm.

Microfilm

Postflood occurrence of selected agricultural chemicals and volatile organic compounds in near-surface unconsolidated aquifers in the upper Mississippi River Basin, 1993

by Kolpin, Dana W.,
Published: U.S. Department of the Interior, U.S. Geological Survey, 1995

Description: 1 online resource (vi, 20 pages) : illustrations (some color), maps.

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eBook

Time of travel and dispersion in a selected reach of Roberts Creek, Clayton County, Iowa

by Kolpin, Dana W.,
Published: U.S. Geological Survey, 1992

Description: 1 online resource (iv, 16 pages) : illustrations, map.

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eBook

Water-quality data for nutrients, pesticides, and volatile organic compounds in near-surface aquifers of the midcontinental United States, 1992-1994

by Kolpin, Dana W.
Published: U.S. Dept. of the Interior, U.S. Geological Survey ; Branch of Information Services [distributor], 1996

Description: v, 47 pages : illustrations, maps ; 28 cm.

Microfilm

Herbicides in ground water of the Midwest : a regional study of shallow aquifers, 1991-94

Published: [U.S. Dept. of the Interior, U.S. Geological Survey], 1998

Description: 1 folded sheet (4 unnumbered pages) : color illustrations, color map ; 28 cm.

Book

Pharmaceuticals, hormones and other organic wastewater contaminants in U.S. streams

by Buxton, Herbert T.
Published: U.S. Dept. of the Interior, U.S. Geological Survey, 2002

Description: 1 online resource.

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Using a geographic information system and scanning technology to create high-resolution land-use data sets

by Harvey, Craig A.
Published: U.S. Dept. of the Interior, U.S. Geological Survey ; Branch of Information Services [distributor], 1996

Description: iv, 41 pages : illustrations, maps ; 28 cm.

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