The Pennsylvania Department of Environmental Protection issued a Notice of Violation to Sunoco Pipeline following another drilling fluid spill, according to StateImpact.

Fifty gallons of bentonite, non-toxic drilling fluid, spilled into the Susquehanna River at a Mariner East 2 pipeline site in Dauphin County. It occurred in the same location as a spill of about 495 gallons.

The most recent spill comes about two weeks after Sunoco agreed to a wide range of new conditions regulating its horizontal drilling during construction of the pipeline as part of a settlement agreement with three environmental groups. The agreement requires Sunoco to review the geology at drilling sites, to give nearby homeowners more notice of drilling plans, and to offer to test their water before, during and after drilling.

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