For active projects and detours visit:



Please read the information below regarding active pipeline projects within Westtown Township.  We also encourage residents to visit the Chester County Pipeline Information Center.  The Chesco Pipeline Information Center was created to provide a central location where residents can find information on all aspects of pipeline issues including pipeline safety, the pipeline review process, and the latest information on pipeline project activity within Chester County and the surrounding region.

A map of pipelines in the county is provided here: CCPC Pipeline Operators map

General Pipeline Information and Resources:

2019-10-05 PaBulletin_Pipeline Reporting Proposed RM_49 PaB 5702
2019-10-01 Federal Register PHMSA Pipeline Safety
Pipeline Safety and Land Use Planning Info
TransCanada Info
Pipeline Safety Materials Cover Letter
2018 PA Emergency Response Manual
2018 PA Quick Reference Guide_ER
Online Pipeline Safety Training

PUC Press Releases & Information

2019-06-13 PUC Seeks Comment on  Potential Enhancements to Pipeline Safety Regulations

2019-08-21 CCATO Letter to PUC re docket L-2019-3010267

Adelphia Gateway Pipeline Project

The Adelphia Gateway project plans to repurpose existing pipeline infrastructure to transport natural gas.  To learn more about the project visit: or call 800-483-3179.

Notice of Application and other information on the Adelphia Gateway Pipeline Project is provided below:

2019-02-01 Comment to FERC re Environmental Impact
Notice of Application – Adelphia Gateway
Legal Notice – Inquirer
Adelphia Gateway Landowner Notification
IEC Pipeline Map
Adelphia Map Westtown Twp
Locations of FERC Applications
How to Intervene
What Do I Need To Know Brochure

The Federal Energy Regulatory Commission (FERC) notice of intent to prepare an environmental assessment for the proposed Adelphia Gateway Project can be found here.  Public comment must be received by June 1, 2018.

Sunoco Logistics Mariner East Pipeline Project

Current information regarding the Sunoco Logistics Mariner East 2 Project is provided below:

Accufacts Report on 2019-08-05 Mariner East Event on Boot Road
2019-04-03 PUC Petition for Approval of Settlement
2019-01-24 PUC Press Release re Update on Mariner East Investigation
2019-01-21 PUC Press Release re Mariner East Investigation
2018-12-19 Pipeline Criminal Investigation
2018-12-05 Arch Bishop – South Chester Road Crossing – DEP Final letter
2018-11-13 G2-ME2-Adelphia-risk-assessment
2018-11-08 Accufacts-Final-Report-on-12-inch Mariner East
2018-10-19 Citizens Risk Assessment Final Report
2018-08-02 PUC Opinion & Order
2018-07-31 Sunono Pipeline Risk Analysis Contribution
2018-07-30 Pipeline Safety Coalition Support Outreach
2018-06-14 PUC Press Release re Emergency Injunction
2018-06-11 letter to PUC in support of Senator Dinniman’s petition

On May 24, the PUC issued an interim emergency order shutting down operations of the Mariner East 1 pipeline as well as halting construction on the Mariner East 2 pipeline in West Whiteland Township.

2018-05-22 SPLP Response to DEP re Hydrological Reevaluation HDD SS&J – S Chester Rd

A public meeting was held on May 3, 2018 regarding the March 7 Emergency Order.  The PUC decision to allow Sunoco to resume construction can be read here: 2018-05-03 PUC order re Sunoco

The Pennsylvania Public Utility Commission (PUC) suspended operations on Sunoco’s Mariner East pipeline on March 7, 2018.  The PUC’s order was in response to a petition from the PUC’s Bureau of Investigations and Enforcement that raised concerns about sinkholes in West Whiteland Township:  2018-03-07 Sunoco – PUC Emergency Order

2018-02-22 Arch Bishop – South Chester Road Crossing – 2nd DEP Response
2018-02-02 PUC_Risk_Assessment_ME2

2018-02-08 DEP News Release – Suspension lifted

2018-01-02 Arch Bishop – S. Chester Rd Crossing – Sunoco Response to DEP
2017-12-22 Arch Bishop -S. Chester Road Crossing – DEP Response
2017-08-17 Corrected Stipulated Order regarding private wells
PADEP E&S Permit_02-13-2017
PADEP Water Obstruction & Encroachment Permit_02-13-2017

Public awareness information from Sunoco Logistics is provided below:

2018-12-29 Energy Transfer Announces ME2 in Service
2019 Energy Transfer Facts about Pipeline Safety brochure
Energy Transfer – Pipeline Emergency Preparedness
Sunoco_Pipeline_News_Views_July 2018
2018-07-19 ME2 Fact Sheet
SunocoWesttown1 map
SunocoWesttown2 map
Mariner East – May 2018
2018-02-05 ME2 Above and Beyond
2018-01-23 Pipeline Construction Sequence
2018-01-23 Pipeline Operations and Safety Overview
2017-08 Sunoco newsletter
Horizontal Directional Dig fact sheet
Mariner East fact sheet
2017 03 28 – Mariner East – Westtown
Pipeline Sunoco safety info
Sunoco Mariner East II Project info sheet

Sunoco Pipeline Update: Corrected Stipulated Order and Exhibits

On August 8, 2017 the Commonwealth of Pennsylvania Environmental Hearing Board issued a Stipulated Order related to the Sunoco Mariner East Pipeline Project.  This order requires Sunoco to undertake additional subsurface testing in advance of Horizontal Directional Drilling (HDD) operations, provide a report on the testing results to all property owners with private water wells within 450 feet of the proposed pipeline, and offer to perform testing of those wells before, during and after the start or re-start of HDD operations (see paragraphs 7 and 8).

Note:  For reference purposes, the segment of the two proposed pipelines that is located in Westtown, is noted in Exhibit 2 as Item 19, Spread 6, Chester Road, PADEP Permit HDD#PA-CH-0421.0000-RD (20” & 16”).


Notice to Residents with Private Wells

As you may be aware from recent news articles, horizontal directional drilling activities for the Sunoco Mariner East 2 Pipeline Project has adversely affected water wells for some properties along the pipeline route in West Whiteland Township. While this may be an isolated incident, the Westtown Board of Supervisors is encouraging all residents with a well within ½ mile of Route 352 to have their water tested. The test is intended establish a baseline, documenting the quality and yield of the well water in the event the pipeline construction impacts your well in the future. Please note also that the PA Department of Environmental Protection recommends that well water be tested every year for total coliform bacteria, nitrates, total dissolved solids, and pH. For a list of well testing laboratories in Chester County, click here.

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