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2. Relation of nitrogen and phosphorus in ground water to land use in four subunits of the Potomac River Basin
3. Reconnaissance of surface-water quality in the North Platte Natural Resources District, western Nebraska, 1993
4. Relation of distribution of radium, nitrate, and pesticides to agricultural land use and depth, Kirkwood-Cohansey aquifer system, New Jersey coastal plain, 1990-91
5. Regional analysis of annual precipitation maxima in Montana
6. Rock-stratigraphic nomenclature, lithology, and subcrop area of the Galena-Platteville bedrock unit in Illinois and Wisconsin
7. Retention of sediments and nutrients in Jackson Creek wetland near Delavan Lake, Wisconsin, 1993-95
8. Relation of hydrogeologic characteristics to distribution of radioactivity in ground water, Newark Basin, New Jersey
9. Relations of Tualatin River water temperatures to natural and human-caused factors
10. Regional water table (1996) and water-level changes in the Mojave River, the Morongo, and the Fort Irwin ground-water basins, San Bernardino County, California
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