Sunoco Pipeline — Mariner East
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Project Info
- View the Sunoco Logistics fact sheet here (updated information posted 2/14/17)
- View a detailed Q&A sheet
- Visit the Sunoco Logistics Pipeline Projects page (information updated 6/23/16)
- Visit the Pennsylvania Department of Environmental Protection's (PaDEP) pipeline portal page (updated weekly and includes information on inadvertent returns and their status, notices of violation, and consent orders and agreements relating to the project)
Mariner East Mapping
- View the proposed route of the Mariner East 1 and Mariner East 2 through Chester County.
- View the proposed route of the Mariner East 1 and Mariner East 2 through Delaware County.
Project Activity
DEP to Receive Comments, Host Virtual Public Hearing on Mariner East 2 Pipeline Amendment Application, Chester County
On February 4, 2022, the PA DEP announced that they will receive public comments and host a virtual public hearing regarding a major permit amendment request from Sunoco Pipeline for work near Marsh Creek Lake. The public hearing and comment period are required under the terms of the Consent Order Agreement entered into between the DEP, the PA Department of Conservation and Natural Resources, and Sunoco Pipeline. The application is related to earth disturbances and temporary storage of dredged material to meet the requirements of the Marsh Creek Lake Impact Assessment and Restoration Plan. The virtual public hearing will be held on Tuesday, March 8, 2022 beginning at 6:00 PM. For more information and details how to participate in the public meeting view the Press Release.
Wolf Administration requires Sunoco to restore Lake at Marsh Creek State Park
On December 6, 2021, DCNR and DEP announced that a settlement was reached with Sunoco Pipeline, LP, that will require dredging of Ranger Cove and restoration of natural resource damages at Marsh Creek State Park. Read the announcement.
PUC Directs Sunoco Pipeline to take public safety actions
On November 18, 2021, the PA PUC directed Sunoco Pipeline LP to take certain reasonable actions to protect public safety regarding the construction and operation of the Mariner East Pipelines, including ME1, ME2, and ME2X in a 3-0 Order based on a decision by Administrative Law Judge Elizabeth H. Barnes. View the Press Release or the Commission's Order.
PA Charges Energy Transfer with Environmental Crimes
October 5, 2021, Pennsylvania files charges against Energy Transfer for environmental crimes related to the Mariner East pipeline project. PA Attorney General has filed 48 criminal charges against Energy Transfer related to the Mariner East project, most of which are related to the release of industrial waste at 22 sites in 11 counties across the state. View the press release.
US District Court files Memorandum of Law in Support of US DOT Motion to Dismiss Sunoco Exemption Request
September 24, 2021 the United States District Court for the District of Columbia filed a Memorandum of Law in support of the US Department of Transportation's Motion to Dismiss Sunoco's request to be held exempt from the Freedom of Information Act. The attorneys for the US Department of Transportation filed a motion for dismissal of Sunoco's request to be held exempt from the Freedom of Information Act, and require the government to redact safety information about pipeline ruptures, due to their inability to allege and prove that the government has violated some law other than the FOIA. View the full memorandum.
April 9, 2021, PUC Rules in case brought by Chester County and Delaware County residents against Sunoco
PA PUC Administrative Law judge ruled on April 9, 2021 that Sunoco Pipeline violated state and federal law by failing to adequately communicate public safety risks of the Mariner East natural gas liquids pipelines, among other orders, including that the company expand its emergency notifications to include police departments and school districts, as well as share non-confidential inspection and testing reports with local officials. Sunoco was also ordered to meet with local stakeholders to develop additional emergency training and share emergency planning documents. The operator was also directed to conduct a depth of cover and distance between other pipelines and structures survey, and lower or bury the ME1 pipeline as appropriate, and provide adequate corrosion control where pipes are less than 12-inches apart.
Chester County Department of Facilities releases Geotechnical Impact and Sinkhole Risk Assessment Report for the Sunoco Mariner East 2 Pipeline at Chester County Library and Chester Valley Trail properties.
On February 1, 2021, the Chester County Department of Facilities released the Geotechnical Impact and Sinkhole Risk Assessment Report, which was an independent study of the county-owned properties of the Chester County Library and the Chester Valley Trail in West Whiteland Township. The risk assessment report, which was prepared by GeoStructures Geotechnical Engineering Consultants, is based on field exploration, USGS publications research, and the review of public records on the pipeline construction. The report identifies various karst features and weaknesses in the ground and rock at both properties in the vicinity of the pipeline and lists recommendations for geotechnical treatments. View the report.