BY CONTINUING TO USE THIS SITE, YOU ARE AGREEING TO OUR USE OF COOKIES. REVIEW OUR COOKIE NOTICE
X


Pennsylvania halts Mariner East 1 NGL pipe flows, Mariner East 2 work continues

Houston (Platts)--8 Mar 2018 129 pm EST/1829 GMT


Mariner East 2 pipeline construction was ongoing in Pennsylvania Thursday, a day after a state regulator ordered the shutdown of Energy Transfer Partners' Mariner East 1 pipeline following the discovery of three sinkholes near the NGL line.

The Pennsylvania Public Utility Commission issued an emergency order Wednesday, requiring additional testing and analysis of the integrity of the pipeline.

Mariner East 1 is an eight-inch-diameter, 70,000 b/d NGL pipeline moving ethane, propane and butane to ETP's Marcus Hook, Pennsylvania, export terminal. The company is building a second parallel line, increasing the system's NGL capacity by 275,000 b/d.

ETP plans to run an inline inspection tool in the area of concern, suspend operations of the pipeline to allow for a 10-14-day study period and share its findings with the PUC, spokesman Jeff Shields said in an email.

"This period should allow us to share what our professional geologist has established to date -- that the Mariner East 1 pipeline is stable, is located in suitably safe geology, and will continue to operate safely as it has done for decades," Shields said in the statement. "The safe operation of our pipelines is of critical importance to us, and we believe the study period will reaffirm the safety of the pipeline."

PUC noted in its order that the sinkholes are near Mariner East 2 construction, but it did not suspend that construction.

"Wednesday's order regarding Mariner East 1 does not affect construction of Mariner East 2, which continues throughout the state," Shields said.

--Andrea Salazar, andrea.salazar@spglobal.com

--Edited by Keiron Greenhalgh, keiron.greenhalgh@spglobal.com




Copyright © 2018 S&P Global Platts, a division of S&P Global. All rights reserved.