Read this story from CBC.ca reporting on the $700,000 fine levied at Enbridge relating to a fatal 2003 blast in Etobicoke, Ontario, which stemmed from the lack of proper markings for a gas line the company operates.
The natural gas explosion levelled a strip mall on Bloor Street West
near Kipling Avenue in April of that year, destroying three businesses
and several homes.
It happened when a construction company doing road work struck a gas line that was not properly identified and marked.
Gas escaped into the basement of the building and was ignited, the province said in a news release Friday.
Enbridge, based in North York, was fined $350,000 for violating the
Occupational Health and Safety Act and another $350,000 for violating
the Technical Standards and Safety Act. (Dec. 16, 2011)
Read more: http://www.cbc.ca/news/canada/toronto/story/2011/12/16/toronto-etobicoke-explosion-fines.html