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Select Item	Title	Year Published
1	Regional characterization of water quality proceedings of a symposium held during the Third Scientific Assembly of the International Association of Hydrological Sciences at Baltimore, Maryland, USA, May 1989 /	1989
2	U.S. Geological Survey Toxic Substances Hydrology Program : proceedings of the Technical Meeting, Montery, Calif., March 11-15, 1991 /	1989
3	U.S. Geological Survey Toxic Substances Hydrology Program : proceedings of the Technical Meeting, Phoenix, Arizona, September 26-30, 1988 /	1989
4	Evaluation of regional ground-water quality in relation to land use : U.S. Geological Survey Toxic Waste--Ground-Water Contamination Program /	1984
5	Nitrogen in ground water and surface water from sewered and unsewered areas, Nassau County, Long Island, New York	1980
6	Quality of surface water in the coal-mining region, southwestern Indiana : March and May 1979	1980
7	Geochemical effects of recharging the Magothy aquifer, Bay Park, New York, with tertiary-treated sewage	1977
8	Change in methylene blue active substances and chloride levels in streams in Suffolk County, New York, 1961-1976	1976

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