Clinton County, PA to Get New Marcellus Wastewater Plant November 9, 2012 Clinton County, Industrywide Issues, Pennsylvania, Wastewater South Avis, in Clinton County, PA, will get a new Marcellus Shale wastewater treatment facility in about a year if all goes according to plan: Please Login to view this content. (Not a member? Join Today!) Related Post navigation Marcellus & Utica Shale Story Links: Fri, Nov 9, 2012New Shale Wastewater Plant Planned for Mahoning County You do not have permission to view the comments. Click here to cancel reply.Please Login to post a comment Notify me of follow-up comments by email.