Description: Coal mining has occurred in Pennsylvania for over a century. A method of coal mining known as Longwall Mining has become more prevalent in recent decades. Longwall mining involves cutting the coal off the face of a long wall panel of coal in a single pass of the machinery. The machinery will then advance forward and perform another pass along the coal face. The broken off coal is hauled to the surface using conveyor belts. As the machinery advances forward into the coal panel, the mine roof is allowed to collapse behind it. This dataset identifies the footprint of these longwall panels relative to the surface.
Definition Expression: N/A
Copyright Text: Pennsylvania Department of Environmental Protection, Bureau of District Mining Operations
Description: Boundary polygons of public water systems (PWS) service areas for community water systems (CWS). The locations were digitized from maps submitted with Annual Water Supply Report for 2000, 2001, 2002 and 2003. Maps not included in these reports were requested by mail on June 12, 2003, June 25, 2004 and December 30, 2005. Revisions, updates and additions are made on an as needed basis. All boundaries should be considered approximate.
Description: A Storage Tank Location is a DEP primary facility type, and the storage tanks at the facility are the sub-facilities. Inactive storage tanks are aboveground or underground tanks that were once regulated under the Storage Tank and Spill Prevention Act (35 P.S. §6021) and 25 Pa. Code Chapter 245. Inactive storage tanks include those tanks that have been removed, permanently closed, exempted from regulation, transferred to a different facility record, or otherwise removed from registration with DEP. These tanks previously held a regulated substance, which could have been a petroleum product or a hazardous substance.