Growing tangle of agencies looking into fatal Merivale explosion

Yet another agency, one with experience in fuel safety,has confirmed it's helping investigate last week'sindustrial fire and explosion in south Ottawa that's believed to have killed six people.

The Jan. 13 explosion ripped through theMerivale Road headquarters ofEastwayTank, Pump and Meter, a manufacturer of tanker trucks.

The Ottawa Police Service said one person taken to hospital died while five other people believed to have beenin the building at the time of the blastare unlikely to have survived.

Police, the fire department, Ontario'sfire marshal, the Ministry of Labour and the coroner's office are all investigating at thesite.

On Saturday,the Technical Standards and Safety Authority (TSSA) Ontario's regulatorfor fuels, boilers, pressure vessels and elevating devices confirmed it is also at the scene.

A TSSA spokesperson said via email they employ fuel safety experts who work with emergency services to helpmake post-explosion sites safe and assist in their investigations.

"Fire departments or the Office of the Fire Marshall typically request [our] assistance when the cause of a fire is unknown but may have involved fuels," the spokesperson said.

"TSSA will also typically look into whether there was any non-compliance with provincial fuels regulations. This is just one aspect of the overall investigation underway."

Labour council keeping tabs

Another group said Saturday it wouldbe closely watching things at 1995 Merivale Rd. too.

The Ontario District Labour Council, which representsover 90 union locals with Ottawa members, said it believes Thursday's explosion is the deadliest workplaceincident in Ottawa since the 1966 collapse of what's now known asthe Heron Road Workers Memorial Bridge.

Dozens were injured and nine people diedin that decades-oldincident.

Heron Road Bridge Collapse 1966

8 years ago

Duration 0:48

CBC-TV's John Drewery on the Heron Road Bridge Collapse 1966

Sean McKenny, the council's president, said that if criminal negligence was at play in the Eastway explosion, appropriate penalties are needed to send a strong message and prevent future workplace deaths.

"Fines are one thing. I don't know how much money a life is worth," McKenny said.

Ontario's Ministry of Labour has confirmed an inspector issued four orders to the company in June 2017 related to issues like ventilation, welding safety and training,and exposures to hazardous chemical substances.

"I think any time the Ministryof Labour has to issue those kinds of orders and directives, there's a problem," McKenny said.

All of thenearly five-year-old orders written by a labour inspector to an employer to either comply with health and safety laws or stop work were complied with, the ministry spokesperson said.

CBC News has asked Eastway what it did in response to the orders.

In a previous statement, Eastman president Neil Green said he was completelydevastated by Thursday's events and that the company would fully cooperate with investigators.

"We want to get to the bottom of what happened," he said.

Looking for the 'area of origin'

Ottawa police last gave an update on Friday evening,with no indication when new details would be shared.

Police have said the recoveryand investigative work at the Eastway scene will take time, given the sitewas heavily damaged.

The first 24 hours of such an operation are usually focused on recovering remains, saidRene Caskanette, a private fire investigator who runs a consulting firm and used to work for the Ontario Fire Marshal's Office.

"If there's any survivors, of course, you want to recover them as well," he said.

Police have not identified any of the people missing or dead in the explosion. CBC News has independently verified the identities of two of the people presumed dead: Eastway employees Rick Bastien and Etienne Mabiala.

Following that work, investigators will turn to the cause of the fire,Caskanettesaid.

"One of the things they're going to do early on is take witness statements so you get information from anybody that was on site aboutwhat may have been happening prior to the explosion to give you some clues on what went wrong," Caskanette said.

A physical examination of the scene will hopefully reveal "the area of origin," he added.

"That's usually [where there's the] heaviest damage,"Caskanettesaid.