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1
Ground-water-quality data in Pennsylvania a compilation of computerized (electronic) databases, 1979-2004
Published: U.S. Geological Survey, 2006Get full textDescription: vi, 22 pages : digital, PDF file.
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2
Water budgets and groundwater volumes for abandoned underground mines in the western middle anthracite coalfield, Schuylkill, Columbia, and Northumberland counties, Pennsylvania--p...
Published: U.S. Dept. of the Interior, U.S. Geological Survey, 2011Get full textDescription: 1 online resource (vii, 54 pages).
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3
Evaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania : effects of pipe-outlet terracing on quantity and quality of surface runoff an...
Published: U.S. Geological Survey, 1997Get full textDescription: 1 online resource (vii, 62 pages) : illustrations, maps.
Government Document eBook