PA DEP: Clay Material Near Marsh Creek State Park NOT Drilling Mud

Never jump to conclusions. It can come back to bite you. Even MDN is sometimes (rarely, but sometimes) guilty of violating that truism. Last week, we told you that drilling mud left in the ground from Energy Transfer's Mariner East Pipeline project work near Marsh Creek State Park (Chester County, PA) had, more than three years after the work was completed, begun to leak out of the ground once again (see More Drilling Mud Surfaces Near Marsh Creek State Park in PA). Energy Transfer (Sunoco Pipeline) swung into action to clean up the new "spill," and the Pennsylvania Dept. of Environmental Protection (DEP) investigated. Guess what? After testing the substance, the DEP found it was not actually bentonite (drilling mud) after all but was "naturally occurring" clay.

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