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Pipeline Leak in Sarnia Located Nine Days After Reports of Sheen on Ontario River

Sun-Canadian recovered about 22,000 litres of spilled diesel and continues cleanup after shutting down the affected pipeline section near Sarnia's petrochemical hub.

  • Sun-Canadian Pipe Line pinpointed the source of a pipeline leak on Saturday morning near Sun Avenue and St. Clair Parkway in Sarnia, with the affected section remaining shut down and cleanup activities ongoing.
  • Suncor identified a "hydrocarbon sheen" on the St. Clair River on March 11, prompting deployment of booms and vacuum gear as the company and Sun-Canadian began developing a detailed excavation and execution plan.
  • About 22,000 litres of spilled diesel was recovered during cleanup, while the Walpole Island First Nation closed drinking water intakes as a precaution and the Aamjiwnaang First Nation reported being left in the dark about the spill's extent.
  • Ontario's Ministry of Environment, Conservation and Parks continues monitoring the cleanup and assessing compliance requirements, while the Technical Standards and Safety Authority investigates the incident's cause.
  • Sun-Canadian requested police assistance to manage increased truck traffic from the pipeline closure, recalling a 2013 rupture near Churchill Road and Vidal Street that released about 35,000 litres of diesel.
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19 Articles

The Toronto StarThe Toronto Star
+13 Reposted by 13 other sources
Lean Left

Pipeline leak located more than a week after sheen first reported on Ontario river

A pipeline leak in Sarnia, Ont., has been located more than a week after a sheen reportedly turned up on the St. Clair River.

·Toronto, Canada
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  • 87% of the sources lean Left
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The Peterborough Examiner broke the news in Peterborough, Canada on Monday, March 23, 2026.
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