Danny Webb Construction began shutting down above ground pits last month in Fayette County that held oil and gas waste. The waste likely came from horizontal drilling operations.
In a more recent development, the DEP says a tank that was holding some of that waste, leaked during the process, but was cleaned up.
Concerned citizens have been expressing concerns with this particular operation for years.
Environmental groups ran some tests last year and while results have turned up inconclusive, it still raised red flags.