Skip to main content
The Globe and Mail
Get full access to globeandmail.com
Support quality journalism
Just $1.99 per week for the first 24weeks
Just $1.99 per week for the first 24weeks
The Globe and Mail
Support quality journalism
Get full access to globeandmail.com
Globe and Mail website displayed on various devices
Just$1.99
per week
for the first 24weeks

var select={root:".js-sub-pencil",control:".js-sub-pencil-control",open:"o-sub-pencil--open",closed:"o-sub-pencil--closed"},dom={},allowExpand=!0;function pencilInit(o){var e=arguments.length>1&&void 0!==arguments[1]&&arguments[1];select.root=o,dom.root=document.querySelector(select.root),dom.root&&(dom.control=document.querySelector(select.control),dom.control.addEventListener("click",onToggleClicked),setPanelState(e),window.addEventListener("scroll",onWindowScroll),dom.root.removeAttribute("hidden"))}function isPanelOpen(){return dom.root.classList.contains(select.open)}function setPanelState(o){dom.root.classList[o?"add":"remove"](select.open),dom.root.classList[o?"remove":"add"](select.closed),dom.control.setAttribute("aria-expanded",o)}function onToggleClicked(){var l=!isPanelOpen();setPanelState(l)}function onWindowScroll(){console.log("scroll");var l=isPanelOpen(),n=0===(document.body.scrollTop||document.documentElement.scrollTop);n||l||!allowExpand?n&&l&&(allowExpand=!0,setPanelState(!1)):(allowExpand=!1,setPanelState(!0))}pencilInit(".js-sub-pencil",!1);

Flowers outside Lakeland Sawmill in Prince George April 25, 2012, to remember the two who died after a fire and explosion at the mill.

John Lehmann/The Globe and Mail/John Lehmann/The Globe and Mail

Two catastrophic sawmill explosions that killed four people and injured dozens more originated in contained spaces in which electrical and or mechanical equipment was running, says WorkSafeBC.

The provincial agency held a conference call Monday to update its investigations into the fires and explosions at the Babine Forest Products mill in Burns Lake in January, as well as last month at Lakeland Mills Ltd. in Prince George.

"In both investigations, the ignition sources appear to have been located at the conveyor level, where electrical and or mechanical equipment was in operation in areas contained by walls and equipment. These areas are the basement or lower level of both the mills under investigation," said Jeff Dolan, director of investigation for the workers' compensation board.

Story continues below advertisement

Mr. Dolan stressed these are observations and no conclusions have been reached when it comes to cause and underlying factor.

"They may be coincidental, but they certainly cannot be ignored," he said.

WorkSafeBC said it directed employers' attention to the similarities as part of its commitment to provide as much information as possible to industry. It said five elements are required for an explosion: fuel, ignition, dispersion, oxygen and containment.

WorkSafeBC previously said it had removed exhibits pertaining to possible ignition sources at Babine from an area 50 feet by 50 feet. Mr. Dolan wouldn't provide a containment area size on Monday. He said WorkSafeBC didn't want to limit the scope for employers.

When asked how WorkSafeBC zeroed in on a location within the Prince George mill quicker than it did in Burns Lake, Mr. Dolan pointed to the weather.

"When Babine occurred, the weather was very different, Environment Canada telling us that it was as low as -41," he said. "As a result, all the water that was used by the fire department to suppress the fire on site froze. That was one factor the investigators didn't have to work through in Lakeland. As we're now in Week 3 of the Lakeland investigation, we were closer to Week 10 at Babine before we were able to access the area which we believe to be the ignition source."

Workers, industry experts and the media have for months pointed to the cutting of wood harvested from forests ravaged by the mountain pine beetle as a possible explanation for the explosions. The wood produces a fine, dry sawdust that is more likely to explode than the normal, wetter timber.

Story continues below advertisement

Earlier this month, in its first update into the Babine blast, WorkSafeBC said sawdust is one of the potential fuel sources being investigated. Natural gas and propane are also possibilities.

Like the fuel source, the ignition source remains unclear. Investigators have ruled out arson and lightning strikes (some Burns Lake residents had raised that as a possibility). WorkSafeBC said it continues to examine ignition sources such as hot surfaces and electrical components.

Possible factors in the explosion, WorkSafeBC said, include the type of wood being milled, the exhaust and ventilation systems and the cold weather.

The explosions led to an unprecedented safety crackdown at sawmills across the province. WorkSafeBC ordered more than 300 mills to remove all accumulated sawdust from their premises and ordered inspections.

The Globe and Mail reported last week that a portion of Canfor's mill in the northern town of MacKenzie was temporarily closed earlier this month because of a sawdust buildup. The closing order has since been lifted.

B.C. sawmill operators are also dealing with soaring insurance costs, because of the accidents and one underwriter's departure from the Canadian market.

Report an error Editorial code of conduct
Due to technical reasons, we have temporarily removed commenting from our articles. We hope to have this fixed soon. Thank you for your patience. If you are looking to give feedback on our new site, please send it along to feedback@globeandmail.com. If you want to write a letter to the editor, please forward to letters@globeandmail.com.

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff. Non-subscribers can read and sort comments but will not be able to engage with them in any way. Click here to subscribe.

If you would like to write a letter to the editor, please forward it to letters@globeandmail.com. Readers can also interact with The Globe on Facebook and Twitter .

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff. Non-subscribers can read and sort comments but will not be able to engage with them in any way. Click here to subscribe.

If you would like to write a letter to the editor, please forward it to letters@globeandmail.com. Readers can also interact with The Globe on Facebook and Twitter .

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff.

We aim to create a safe and valuable space for discussion and debate. That means:

  • Treat others as you wish to be treated
  • Criticize ideas, not people
  • Stay on topic
  • Avoid the use of toxic and offensive language
  • Flag bad behaviour

Comments that violate our community guidelines will be removed.

Read our community guidelines here

Discussion loading ...

To view this site properly, enable cookies in your browser. Read our privacy policy to learn more.
How to enable cookies