Search Results       Your search for [subject]Water quality -- Allegheny River Watershed (Pa. and N.Y.) returned 1 record.           Water quality in the Allegheny and Monongahela River Basins : Pennsylvania, West Virginia, New York, and Maryland, 1996-98. Denver, CO: Free on application to the U.S. Geological Survey, Information Services, 2000. Subject: Water quality -- Allegheny River Watershed (Pa. and N.Y.); Water quality -- Monongahela River Watershed (W. Va. and Pa.).          Add to Book Cart Relevance: 48.15%