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311

Sewer service interruptions

Untreated wastewater discharges from the wastewater collection system to the river system:

2012 2011 2010 2009 2008 2007 2006 2005 2004
2010
Date Location Estimated
discharge
Estimated
duration
Cause Incident details and response
March 3 Assiniboine River - Combined sewer overflow pipe located at the southwest corner of Assiniboine Avenue and Main Street. 600,000 litres 355 minutes Partial blockage in junction chamber
  • Received notification of discharge from combined sewer overflow pipe at approximately 2:40 p.m.
  • Crew arrived around 3:00 p.m. and found a partial blockage in junction chamber. Blockage caused sewage levels to rise above the sewer's overflow weir resulting in diluted combined raw sewage discharge to the Assiniboine River.
  • Estimate that discharge began at 9:25 a.m.
  • Crew removed blockage and restored normal flow.
  • Levels in sewer declined and discharge stopped at approximately 3:20 p.m.
  • River Patrol Unit notified of discharge.
  • Incident reported to Manitoba Conservation, Manitoba Environmental Accident Reporting Line and Environment Canada.

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Last updated: January 8, 2013

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