Pittsburgh Suburb Suspects Illegal Shale Wastewater Dumping Allegheny County | Crime | Industrywide Issues | Pennsylvania | Wastewater August 28, 2012August 28, 2012 Authorities in Plum Borough, near Pittsburgh, PA, believe there has been illegal dumping of Marcellus brine (wastewater)—two times—into its municipal sewer treatment system. The following notice offering a $1,000 reward was published today: Please Login to view this content. (Not a member? Join Today!) Related