Regina refinery pleads guilty to safety charge in 2011 explosion

Several hurt in Regina oil refinery explosion

A Regina refinery has pleaded guilty to one of five charges in connection with a 2011 explosion that injured 52 people.

Consumers Co-operative Refineries Ltd. admits it failed to sufficiently and competently supervise work at the site.

The province charged the company in July 2013 with offences under Saskatchewan's Occupational Health and Safety Act.

The government alleged the refinery didn't have a general corrosion monitoring program, failed to adequately maintain equipment and didn't ensure worker safety.

The Crown has agreed to withdraw four other charges.

An investigation found that the explosion was caused by a ruptured pipe thinned by corrosion.