Current and projected impacts in Allegheny County, PA from unconventional oil and gas drilling.
Current and projected impacts in Allegheny County, PA from unconventional oil and gas drilling.  Existing and permitted wells through 12/14/2016, plus a projection of an additional 250 well pads in leased areas or other areas where O&G operators or their agents have registered land use agreements with the county Deeds office.
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