PA DEP Issues Permits and Solicits Comments for Major Oil & Gas Infrastructure Projects

The Pennsylvania Department of Environmental Protection (DEP) has released a series of notices regarding permit applications, renewals, and remediation reports for various oil and gas facilities across the Commonwealth. These actions involve significant infrastructure including natural gas power plants, compressor stations, pipelines, and petroleum storage terminals. The updates reflect ongoing regulatory oversight of wastewater discharge, air quality, and land recycling efforts within the state's energy sector.

The DEP is currently seeking public comment on several midstream infrastructure projects, including a Chapter 102 permit application from Transcontinental Gas Pipe Line Company, LLC. This application pertains to the Northeast Supply Enhancement Project’s Quarryville Loop and Compressor Station 200, specifically proposing the addition of a contractor wareyard for staging piping and equipment in Lancaster County. Additionally, Texas Eastern Transmission LP is seeking an NPDES wastewater permit renewal for its Delmont Compressor Station in Westmoreland County, while UGI Utilities, Inc. has applied for an individual stormwater permit to replace 2.3 miles of natural gas pipeline in Tioga County. CNX Midstream Operating Co., LLC also received a GP-5 Air Quality General Permit for its Mamont Centralized Compressor Station.

Significant regulatory activity is also noted for natural gas power plants and downstream facilities. The DEP invited comments on NPDES wastewater permit renewals for the 1,483 MW Lackawanna Energy Center and the 728 MW Ontelaunee Energy Center. In the downstream sector, Monroe Energy, LLC is seeking a stormwater permit for its Trainer Refinery cooling tower and chemical storage areas, while Sunoco Midstream, LLC received air quality approvals for gasoline and biodiesel storage tanks at its Mechanicsburg Terminal and a separate petroleum storage facility in Blair County. Furthermore, air quality permit renewals are pending for bulk petroleum storage facilities operated by Dupont Terminals and Fullerton Terminals in Luzerne and Lehigh counties, respectively.

Environmental remediation efforts continue under the Act 2 Land Recycling program, with the DEP receiving or approving final reports for several sites contaminated with production wastewater. These include National Fuel Gas’s Tract 007 Compressor Station, Greylock Product’s Veres Shale Gas Well Pad, EQM Gathering’s Spicket Booster Station, and EQT Corporation’s Aphrodite Shale Gas Well Pad. So far in 2026, the DEP has processed 104 Act 2 notices related to oil and gas facility cleanups. Additionally, the agency issued several WMGM-55 General Waste Permit renewals for landfill gas facilities operated by NexEra Renewable Fuels, Terreva Wayne Township, WB McKean LLC, and Greentree Landfill Gas Company across various counties.