Aerial photo shows upstream dike and sumps to contain tailings at Mount Polley mine

Mount Polley dike completed, investigators move in

New dike makes breach safe, allows downstream work on sumps to prevent further tailings to escape as mine investigation continues

An upstream dike has been completed at Mount Polley Mine, allowing investigators to probe the site of the original Aug. 4 dam breach.

The new structure is to make the breach area safe for inspection and work below, not to repair the original breach or retain water in the tailings pond, said Steve Robertson, Imperial Metals vice-president for corporate affairs.

“We’ve finished construction of the upstream dike, and now we’re establishing the sumps on the upstream side of that, and that will intercept the water that’s going to continue to flow out of the tailings,” Robertson said in an interview Friday. “If anything should get past that, we’ll have another sump outside of the breach that will capture any water that comes out through the breach and make sure that it gets put into the reclaim system.”

The sumps act as settling ponds, with the water pumped back up to another pit on the site of the copper-gold mine near Williams Lake.

Robertson said the continued work addresses the Ministry of Environment‘s non-compliance notice issued to the company Sept. 9, regarding discharge of water into the Hazeltine Creek channel.

Most of the available mine employees are back at work, with about 30 working on cleanup around Quesnel Lake. Work is expected to continue until there is too much snow cover to continue.

The environment ministry released more water test results Thursday, showing water collected at various sites and depths in the area remains safe to drink.

The immediate area of the tailings spill remains a “do not use” zone, and Interior Health advises local residents to avoid drinking cloudy water.

 

Just Posted

Minor injuries in car, semi accident near Greenwood

Road conditions were likely a factor in the Friday morning crash.

UPDATE: B.C. legislature managers accused of excessive travel, personal expense claims

Speaker Darryl Plecas’ report details ‘flagrant overspending’

B.C. man fined $10,000 after leaving moose to suffer before death

Surrey man was convicted last week on three Wildlife Act charges

‘Blue Monday’ isn’t real, but depression can be

CMHA encourages people to prioritize their mental health

Anti-pipeline group wants NEB to consider impact of emissions, climate change

Stand.earth filed NEB motion asking to apply same standard to the project as it did with Energy East pipeline

B.C. man charged in 2014 snake venom death of toddler

Henry Thomas was taking care of the North Vancouver girl the day before she died

Parole granted for drunk driver who killed B.C. RCMP officer

Kenneth Jacob Fenton will be able to attend alcohol abuse treatment, nearly three years after crash that killed Const. Sarah Beckett

B.C.’s largest public-sector union wants inquiry into money laundering, drugs

Union officials say Premier John Horgan and Attorney General David Eby have not ruled out the possibility of a public inquiry

Teen in confrontation with Native American: I didn’t provoke

Nick Sandmann of Covington Catholic High School said he was trying to defuse the situation

New military armoury opens in Cranbrook

Military presence in the Key City a part of the 44th Engineer Squadron

Most Read