UBC mine engineering professor Dirk Van Zyl (left) is introduced by Energy and Mines Minister Bill Bennett as one of three independent experts to investigate the cause of the Mount Polley tailings dam failure. Their report is due by Jan. 31.

UBC mine engineering professor Dirk Van Zyl (left) is introduced by Energy and Mines Minister Bill Bennett as one of three independent experts to investigate the cause of the Mount Polley tailings dam failure. Their report is due by Jan. 31.

Mount Polley spill may be left in place

Further tests will determine whether the metal-bearing sand will be removed or left where it is, Mines Minister Bill Bennett says

Further tests of mine tailings spilled down a creek bed from the Mount Polley mine will determine whether the metal-bearing sand will be removed or left where it is, Energy and Mines Minister Bill Bennett said this week.

The first lab tests on sediment samples at the mouth of Hazeltine Creek showed that while the material that poured down to the creek mouth in Quesnel Lake isn’t a health hazard to humans, its iron and copper content are above federal and provincial standards for aquatic life.

Bennett said it’s encouraging that the first sediment results did not show presence of arsenic, mercury or cadmium, toxic elements found in mine rock or used in mine processing.

A comparison sample of compact sediment from the mouth of nearby Raft Creek, not affected by the Aug. 4 tailings pond breach, also tested above sediment quality guidelines for iron. The environment ministry says mineral deposits that attract mine development often have naturally occurring metal concentrations much higher than other areas.

“What we need to do is test those sediments to determine whether it’s better environmentally to leave them there or to try to collect them and get them out of the creek bed and get them out of the creek mouth in Quesnel Lake,” Bennett said. “Before you start dredging lake bottoms and trying to clean up the bottom of a creek bed to get the sand out, you’ve got to determine what the risk is first, and that’s the phase that we’re in right now.”

There are two priority jobs underway on the spill site. One is pumping down the level of Polley Lake, the smaller lake next to the mine site that received a surge of water and tailings that plugged the outlet with an elevated water level. The other is reconstructing the breached section of the dam to prevent rain from carrying more tailings from the pond.

Interior Health is reviewing water and sediment sample results and a long-term monitoring and remediation plan has been submitted by the mine operator, a division of Imperial Metals.

 

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

Gp Vanier in Courtenay. Circa 2018. Photo courtesy Comox Valley Schools
Second COVID exposure alert for Vanier Secondary in Courtenay

Island Health has sent another exposure alert to parents of students attending… Continue reading

“Of Bears at Fridges, drinking Planes and Cinderella’s Shoe” is Jordis Trumby’s first children’s book. Photo supplied.
Courtenay author writes, illustrates first children’s book

When is a collaboration not a collaboration? At first glance, Courtenay author… Continue reading

The 5th Street Bridge requires structural improvements, new coating to repair and prevent corrosion, and deck repairs. File photo
City of Courtenay awards contract for 5th Street Bridge project

The City of Courtenay has awarded the contract for the rehabilitation of… Continue reading

Pumpjacks pump crude oil near Halkirk, Alta., June 20, 2007.THE CANADIAN PRESS/Larry MacDougal
Gas prices jump in the Valley – and experts predict prices to rise even more

“We still could be talking about record prices…”

NIC Practical Nursing instructor Barb McPherson (right) is pictured with student Rebecca Wood in 2018 in NIC’s SIM lab. NIC photo
Learn about Practical Nursing opportunities for Island students

Students interested in exploring a future in health care are invited to… Continue reading

Cannabis bought in British Columbia (Ashley Wadhwani/Black Press Media)
Is it time to start thinking about greener ways to package cannabis?

Packaging suppliers are still figuring eco-friendly and affordable packaging options that fit the mandates of Cannabis Regulations

COVID-19 vaccines were available at a site on East Pender in Vancouver’s Downtown Eastside Feb. 25. (Twitter/Sarahblyth17)
Vancouver’s Downtown Eastside residents offered $5 after getting COVID-19 vaccine

It’s an effort to ‘incentivize people to engage,’ says B.C. Health Minister Adrian Dix

</p>
A survey by Statistics Canada finds Black Canadians earn less than non-visible minority Canadians despite having higher levels of education. (The Canadian Press file photo)
COVID-19 worsened unemployment picture for Black Canadians

Black Canadians also more likely to suffer other hardships

(Black Press Media files)
B.C. teacher transferred then suspended after students report feeling ‘scared, nervous’

Authorities found that teacher did not create inviting, respectful environment for students

Victoria’s Swartz Bay terminal. (Black Press Media file photo)
BC Ferries offers cheaper, prepaid fare options

Ferry service preparing for busy terminals when travel restrictions are lifted

FILE - Dolly Parton arrives at the 61st annual Grammy Awards on Feb. 10, 2019, in Los Angeles. The Grammy-winning singer, actor and humanitarian posted a video on Tuesday, March 2, 2021, of her singing just before getting her COVID-19 vaccine shot. Parton donated $1 million to Vanderbilt University Medical Center in Nashville, Tennessee for coronavirus research. (Photo by Jordan Strauss/Invision/AP, File)
‘Vaccine, vaccine’: Dolly sings ‘Jolene’ rewrite before shot

The Grammy-winning legend turned 75 this year

Deputy Prime Minister and Minister of Finance Chrystia Freeland speaks about the Fiscal update during a news conference in Ottawa, Monday November 30, 2020. THE CANADIAN PRESS/Adrian Wyld
COVID-19: Wage and rent subsidies, lockdown support to be extended until June

Chrystia Freeland says now is not time to lower levels of support

The area on Cordova Bay Road where ancestral human remains were discovered Feb. 22. (Submitted photo)
Human remains discovery a reminder of B.C. Indigenous culture dug up and displaced

‘These are the people who inspired and birthed the generations that we now have here’

Most Read