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david a eckhardt
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Ground-water movement in the upper glacial aquifer in the Manorville area, Town of Brookhaven, Long Island, New York, in November 1983
David A. V Eckhardt · U.S. Dept. of the Interior, Geological Survey
12 sayfa · 1986
Groundwater / Groundwater flow
Relation between land use and ground-water quality in the upper glacial aquifer in Nassau and Suffolk Counties, Long Island, New York
David A. V Eckhardt · Dept. of the Interior, U.S. Geological Survey
35 sayfa · 1989
Water quality / Land use / Groundwater
Pesticide residues in Hemlock and Canadice Lakes and their tributaries in western New York, 1997-98
David A. V. Eckhardt · U.S. Geological Survey Branch of Information Services, distributor
Sayfa sayısı yok · 2000
Agricultural pollution / Environmental aspects / Environmental aspects of Pesticides / Pesticides / Water quality
Chlorinated organic compounds in ground water at Roosevelt Field, Nassau County, Long Island, New York
David A. V Eckhardt · Dept. of the Interior, U.S. Geological Survey
62 sayfa · 1989
Water / Purification / Chlorination / Groundwater / Pollution