CALGARY, ALBERTA–(Marketwired – Aug. 7, 2015) – Alliance Pipeline has begun shutting down its pipeline system as it prepares to begin flaring activity in order to evacuate an amount of H2S that entered the pipeline from an upstream operator. The H2S has been isolated in a section of the Alliance mainline where it will safely remain until it is removed through the flaring process.
Flaring is planned to happen at Alliance’s Alameda compressor station in Saskatchewan, as well as at a mainline block valve upstream from the Alameda station. The second location has been added as a measure to more effectively flare the H2S and minimize the duration of the shutdown. Flaring will commence as soon as it is safely possible.
Landowners and local officials in the vicinity of the planned flaring sites have been notified.
“Alliance is committed to resolving this matter as soon as possible in order to minimize the disruption for our customers,” said Daniel Sutherland, Vice President, Commercial Operations. “As always, safety remains our top priority and all of our activities will adhere to strict safety protocol.”
Alliance Pipeline expects the shutdown to last for several days. A more precise timeline will be communicated when the mitigation plans are finalized.
The Alliance Pipeline system consists of an approximately 3,719-kilometer (2,311-mile) integrated Canadian and U.S. natural gas transmission pipeline system, delivering rich natural gas from the Western Canadian Sedimentary Basin and the Williston Basin to the Chicago market hub. The United States portion of the system consists of approximately 1,577 kilometers (980 miles) of infrastructure including the 128-kilometer (80-mile) Tioga Lateral in North Dakota. The Alliance system delivers, on average, about 45.3 million standard cubic metres (or 1.6 billion standard cubic feet) of natural gas per day. More information about the company is available at www.alliancepipeline.com.
Alliance Pipeline Limited Partnership (“Alliance Canada”) owns the Canadian portion of the Alliance Pipeline system. Alliance Pipeline L.P. (“Alliance U.S.A.”) owns the U.S. portion of the Alliance Pipeline system. Both Alliance Canada and Alliance U.S.A. are owned 50 percent each by affiliates of Enbridge Income Fund Holdings Inc. (TSX:ENF) and Veresen Inc. (TSX:VSN).