The Sumas, British Columbia-Anacortes, Washington segment of the legacy Trans Mountain Pipeline (TMP) system (see map below) will be shut for six days next month for planned maintenance, according to its operator, Trans Mountain Corporation (TMC). Impacted shippers have been notified, it said.
Known also as the Trans Mountain Puget Sound Pipeline (pink line) this segment get its supplies from the 300 Mb/d TMP system, sending it to four refineries north of Seattle in Washington state through the Sumas export point.
TMP (solid green line) runs from its receipt point in Edmonton, AB, with extra receipts entering via Kamloops, BC, before reaching the 55-Mb/d Parkland Corp.-owned Burnaby refinery (blue triangle; in Burnaby, BC), or for export from the Westridge docks (yellow star) about 2 miles (3 km) north of the refinery.
Its twin, the 590-Mb/d Trans Mountain Expansion (TMX, dashed green line) which experienced plenty of setbacks leading up to its eventual startup in May 2024, runs roughly parallel to TMP.
Separately, earlier this month, TMC told regulators it would be carrying out unplanned maintenance October 7 through November 30 to give temporary protection for an exposed segment of TMP near Hope, British Columbia, at a crossing of a non-fish bearing stream.
