"Residents have complained for years about thick black smoke and possible pollution coming from the MarkWest gas plant in Chartiers. But the state Department of Environmental Protection said it couldn't take action because it had no evidence. On Tuesday, the department said it had the goods."
"Someone snapped pictures of a plume of black smoke coming from the plant on July 14 and 15 and sent them to regulators.
The DEP said Tuesday that the deluge of photos sent directly to its workers last month will likely lead to the first state environmental fine against the plant, owned by MarkWest Energy Partners LP. The pictures provided the evidence the agency needed that the plant was violating state environmental regulations, DEP spokesman John Poister said."