For Immediate Release

December 3, 2014

Regina, Saskatchewan


The Technical Safety Authority of Saskatchewan Releases its Report on the Co-op Refinery Complex Explosion of December 24, 2013

Regina, Saskatchewan – The Technical Safety Authority of Saskatchewan (“TSASK”) has finalized its investigation into the December 24, 2013 explosion at the Co-op Refinery Complex (“CRC”) in Regina.

The investigation has concluded that a bypass line of Polymerization Unit 27 froze following a maintenance procedure.  The stress of the freezing process ruptured the bypass pipe.   Once the air temperature warmed, the petroleum product was released through the line, resulting in an explosion and subsequent fire.

The event was not related to a malfunction of pressure equipment.

TSASK’s report from the investigation has been provided to CRC for action.

A copy of the report is available on the TSASK website at



TSASK is a not-for-profit company that administers Saskatchewan’s safety programs for boilers, pressure vessels, elevating devices and amusement rides.  TSASK administers and enforces The Boiler and Pressure Vessel Act, 1999 and Regulation, The Passenger and Freight Elevator Act and Regulation, and The Amusement Ride Safety Act and Regulation.

TSASK operates at arms-length from the government and is governed by a Board of Directors.  The provincial government establishes safety standards, policies, legislation and regulatory requirements related to public safety.

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Bill Scott                                                                                            


Technical Safety Authority of Saskatchewan                       



Chris Selinger

Chief Inspector

Technical Safety Authority of Saskatchewan