Suspended-Sediment Yields from an Unmined Area and from Mined Areas Before and After Reclamation in Pennsylvania, June 1978-September 1983

摘要

The report describes results of a study to determine sediment yields from areas affected by surface mining in the bituminous coal fields of Pennsylvania, determine sediment yields during different phases of mining, measure the effectiveness of the sediment-control ponds, and compare the sediment yields from areas affected by mining to yields from areas unaffected by mining. Hydrologic data collected by the U.S. Geological Survey from June 1978 through September 1983, from 11 sites in or near the bituminous coal fields of Pennsylvania, were analyzed in the study. Five of the sites were in Tioga County, four were in Clearfield County, and two were in Fayette County.