Pipeline Information

Sunoco Logistics Mariner East Pipeline Phase 2



Sunoco began work on this phase of the Mariner East pipeline in early 2017. This Sunoco Logistics fact sheet provides further information about the Mariner East project. To view a comprehensive overview and detailed Q&A sheet about Mariner East 1 and 2, visit the Chester County Pipeline Information website. Residents and interested members of the public can sign up to be notified of updates at www.upperuwchlan-pa.gov/NotifyMe. All pipeline updates related to this project will be archived on this page.

Upper Uwchlan Township Administration 
Date: September 13, 2017



Inadvertent Return Re-Occurrence at Sunoco Drilling Locations


CHESTER SPRINGS, PA – On September 11, 2017, Upper Uwchlan Township received an inspection report from the Pennsylvania Department of Environmental Protection (DEP) detailing a violation of The Clean Streams Law on the part of Sunoco Pipeline, LP. The violation occurred at the site of an inadvertent return (IR) first reported to Upper Uwchlan Township in June. At that time, Sunoco reported that cleanup and containment of the site were conducted and that the private landowner had been informed of the IR. Sunoco provided no further report of the IR to the Township. 

The DEP report details that, at the site of the original IR, additional bentonite drilling mud was released into wetland areas. This release occurred August 29, 2017. DEP was notified and documented the release during an inspection that same day. The drilling mud consisted of bentonite clay and water. An estimated 40-50 gallons was released into the wetland. The release affected wetland and surface water in an unnamed tributary of Marsh Creek Lake. The report notes that no impact was observed downstream; the report does not list the Lake itself as an affected waterway.

In addition, Sunoco has informed Upper Uwchlan Township that an additional release of bentonite has occurred at the site of another previously reported IR in the Township. This release took place on Saturday, September 9, 2017 on Township property near Hickory Park and consisted of one half gallon of drilling mud. Containment measures will be reviewed and approved by the DEP before drilling resumes.

All IRs are logged on the DEP website. Because both releases took place at the site of previously identified IRs, neither constitutes a separate IR on that list.

Township personnel visited both sites on the morning of September 12, 2017 to observe operations and containment measures. Upper Uwchlan Township will continue to work to provide the public with as much information as is made available to us.

Upper Uwchlan Township is a Township of the Second class, population 11,500, located in central Chester County, PA. Visit us on the web at www.upperuwchlanpa.gov. Like us on Facebook and Twitter @upperuwchlan. 


Upper Uwchlan Township Administration 
Date: August 17, 2017


Sunoco to Restart Pipeline Drilling Operations in Upper Uwchlan


CHESTER SPRINGS, PA – New and additional landowner notification requirements and additional well testing requirements are among the changes that will be in effect as Sunoco Pipeline re-starts Mariner East 2 pipeline drilling operations in Upper Uwchlan Township. 

The agreement reached between Sunoco and several environmental groups before the Pennsylvania Environmental Hearing Board means that pipeline drilling may now resume at sites in Upper Uwchlan Township.

If they are in the expanded notification area, some residents of Upper Uwchlan Township may receive information via certified mail that they are now eligible to request well water testing or may simply receive direct notice of pipeline drilling. 

To read the statement from Sunoco, please refer to the attached landowner newsletter.

Upper Uwchlan Township is a Township of the Second class, population 11,500, located in central Chester County, PA. Visit us on the web at www.upperuwchlan-pa.gov. Like us on Facebook and Twitter @upperuwchlan.

Upper Uwchlan Township Administration


Date: July 11, 2017



Residents of Upper Uwchlan may have heard reports of well water issues related to the Mariner East drilling activity.

Sunoco Pipeline is working with a number of residents in the Exton (Chester County) area to resolve private well water issues that appear to be related to nearby construction on the Mariner East 2 pipeline. These incidents have been reported in West Whiteland and Uwchlan Townships. There have been no reports of well water issues in Upper Uwchlan Township. Additional information will be shared if/when it becomes available to Upper Uwchlan Township. Anyone with questions may contact the Township office at 610-458-9400.

Upper Uwchlan Township Administration


Date: July 5, 2017



Sunoco Logistics has provided Upper Uwchlan Township with a landowner newsletter for July 2017. The newsletter includes a construction update and safety information.

Upper Uwchlan Township Administration
Date: June 20, 2017

INADVERTENT RETURN OF DRILLING MUD IN UPPER UWCHLAN TOWNSHIP

CHESTER SPRINGS, PA

– Sunoco Pipeline has reported an inadvertent return (IR) at one of the construction sites of the Mariner East 2 pipeline in Upper Uwchlan Township. The return occurred on Township property southeast of Hickory Park.

The following is a statement from Sunoco:

“On Saturday June 17, 2017, Sunoco Pipeline identified an inadvertent return of drilling mud on Upper Uwchlan Township property, in an unnamed tributary of Marsh Creek southeast of Hickory Park. An estimated five gallons of mud entered the water and crews immediately set up containment at the site, including sandbags, in accordance with our permits from the Pennsylvania Department of Environmental Protection.

Sandbag containment for the drilling mud, composed of non-toxic bentonite clay and water, will remain in place at the inadvertent return locations and will be monitored throughout the duration of the construction. These sandbags help prevent sediment (in this case bentonite clay) from impacting waterways, while a pump is utilized to vacuum and recycle the drilling mud.

Proper notifications have been made to Pennsylvania DEP, Chester County Conservation District, Pennsylvania Fish and Boat Commission, and the U.S. Army Corps of Engineers, along with Upper Uwchlan Township. Sunoco Pipeline will continue to work in conjunction with these regulatory agencies and the township to monitor and minimize any impacts to the area.

The Mariner East 2 pipeline project utilizes Horizontal Directional Drilling as a construction method to minimize surface disturbance and reduce environmental impact during construction. Inadvertent returns occur when drilling mud, used to lubricate the drill underground, follows a fracture in the rock under the area and finds its way to the surface. The bentonite is approved for use by the DEP under safe drinking water standards and is mixed with potable water to form the mud that helps facilitate the drilling process Please see the HDD fact sheet for more information.

Sunoco Pipeline continues to operate a 24-hour informational hotline at 855-430-4491. For more information on the Mariner East 2 construction project, visit www.marinerpipelinefacts.com.”


Township personnel visited the site of the IR on Monday, June 19, and will continue to monitor this situation until construction and cleanup are completed at the site.

For more information about IRs, bentonite, and the HDD construction process, refer to the attached fact sheet provided by Sunoco. Residents and interested members of the public can sign up to receive information about pipeline work using Township website's Notify Me feature. All updates related to the Sunoco Mariner East 2 project will be archived at upperuwchlan-pa.gov/pipelines.

Upper Uwchlan Township is a Township of the Second class, population 11,500, located in central Chester County, PA. Visit us on the web at www.upperuwchlan-pa.gov. Like us on Facebook and Twitter @upperuwchlan.

Download a PDF copy of this news release.

Upper Uwchlan Township Administration
Date: June 8, 2017



Sunoco Logistics has provided Upper Uwchlan Township with this newsletter highlighting the construction process for the Mariner East pipeline and the project's scope.

Upper Uwchlan Township Administration
Date: May 25, 2017

Trails at the southeastern end of Hickory Park will be closed starting Tuesday, May 30, until further notice due to pipeline activity.

Upper Uwchlan Township Administration
Date: May 12, 2017

Hickory Park Field 4, the multi-purpose field across from the basketball courts, will be closed starting Monday, May 15, until further notice due to pipeline activity.

Upper Uwchlan Township Administration
Date: March 8, 2017
FOR IMMEDIATE RELEASE

SUNOCO LOGISTICS TO BEGIN WORK ON MARINER EAST PIPELINE PHASE 2



CHESTER SPRINGS, PA – Sunoco Logistics expects to begin work this month in Upper Uwchlan Township and the surrounding region to expand the existing Mariner East pipeline system through the construction of the Mariner East 2 (PA Pipeline Project) project. When constructed, this project will transport natural gas liquids from Ohio and the Pittsburgh area to the Marcus Hook facility for both domestic distribution and export. The Mariner East 2 pipeline proposes approximately 350 miles of pipe, spanning Pennsylvania, West Virginia and Ohio. Mariner East 2 will have an initial capacity of approximately 275,000 barrels a day of natural gas liquids using a 20" diameter pipeline. The length of the project through Chester County is approximately 23.6 miles and in Delaware County, 11.4 miles. Approximately 80% of the Mariner East 2/PA Pipeline Project is to be located within existing rights-of-way.

Timing


Sunoco anticipates that construction of the project will begin in late winter/early spring 2017 and that it will be completed by the end of the third quarter of 2017.


Impact on Township Facilities


The attached maps detail the proposed pipeline route through Upper Uwchlan Township. The Township anticipates closure of Hickory Park Field 4 as well as possible closures of the trails at Hickory Park during the duration of project work in that area. Updates about closures and timing will be made as that information becomes available.


Updates


Upper Uwchlan Township will communicate with residents and the public throughout the pipeline installation process. Up to date information regarding timing will be posted on the homepage of the Township website. All project updates will be archived at www.upperuwchlan-pa.gov/pipelines. Residents and interested members of the public can sign up to be notified of updates at www.upperuwchlan-pa.gov/NotifyMe.

The attached Sunoco Logistics fact sheet provides further information about the Mariner East project. To view a comprehensive overview and detailed Q&A sheet about Mariner East 1 and 2, visit the Chester County Pipeline Information website.

Upper Uwchlan Township is a Township of the Second class, population 11,500, located in Central Chester County, PA. Visit us on the web at www.upperuwchlan-pa.gov. Like us on Facebook and Twitter @upperuwchlan.

Download a PDF copy of this news release.

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