Monongahela River Basin West Virginia Supplement ...
903R81001 •A. SUPPLEMENTAL INFORMATION DOCUMENT to the Areawide Environmental Assessment for Issuing New Source NPDES Permits on Coal Mines in the Monongahela River Basin, West Virginia Prepared by: US Environmental Protection Agency Region III Sixth and Walnut Streets Philadelphia, Pennsylvania 19106 With the Assistance Of: WAPORA, Inc. Berwyn, Pennsylvania .