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.

 

Just Posted

Bonnie Brown, business manager of the Mount Arrowsmith Salvation Army, visits the PQB News/VI Free Daily studio. (Peter McCully photo)
PQBeat: Chat with Bonnie Brown of the Mount Arrowsmith Salvation Army

Podcast: Talk includes COVID-19, new fundraising initiatives and more

(PQB News file photo)
Oceanside RCMP on the hunt for reported Rathtrevor flasher

Two separate incidents noted at provincial park on April 30 and May 14

A fledgling white raven was spotted near the end of Winchester Road in Coombs. (Mike Yip photo)
Legend continues as iconic white raven spotted once again in Coombs

Sightings rare everywhere in world except for central Vancouver Island location

Emergency service workers at the collision scene along Highway 4 in Hilliers on Sunday, May 16. (Collin C photo)
UPDATE: Motorcyclist dies from injuries sustained in highway collision near Hilliers

BC Highway Patrol says impairment not a contributing factor in crash

Checking through social media feeds can be an interesting exercise. (Black Press Media file photo)
WOLF: Mr. Rogers would be proud of this friendly day in the neighbourhood

COLUMN: Residents quick to offer assistance for person coming off surgery

An avalanche near Highway 1 in Glacier National Park. Avalanche Canada will benefit from a $10 million grant from the B.C. government. (Photo by Parks Canada)
Avalanche Canada receives $10-million grant from B.C. government

Long sought-after funds to bolster organization’s important work

More “strings of lights” were seen on May 15, 2021, in night sky over Vancouver Island. (File photo)
Sicamous RCMP Sgt. Murray McNeil and Cpl. Wade Fisher present seven-year-old Cody Krabbendam of Ranchero with an award for bravery on July 22, 2020. (Contributed)
7-year old Shuswap boy receives medal of bravery for rescuing child at beach

Last summer Cody Krabbendam jumped into the lake to save another boy from drowning

B.C. Health Minister Adrian Dix and provincial health officer Dr. Bonnie Henry update the province’s COVID-19 vaccine program, May 10, 2021. (B.C. government)
B.C.’s COVID-19 infection rate stays below 500 a day over weekend

14 more deaths, down to 350 in hospital as of Monday

Royal Bay Secondary School’s rainbow crosswalk was vandalized shortly after being painted but by Monday, coincidentally the International Day Against Homophobia, Transphobia and Biphobia, the crosswalk had been cleaned up and students had surrounded it with chalk messages of support and celebration. (Zoe Ducklow/News Staff)
B.C. high’s school’s pride crosswalk restored following ‘hateful’ graffiti attack

Hate terms, racial slur, phallic images spray-painted at Greater Victoria high school

Terrance Mack would have celebrated his 34th birthday on May 13, 2021. Mack’s family has identified him as the victim of a homicide in an apartment on Third Avenue in Port Alberni sometime in April. (SUBMITTED PHOTO)
Family identifies Ucluelet man as victim of Vancouver Island homicide

Terrance Mack being remembered as ‘kind, gentle’ man

Nathan Zuk had left his mother’s residence in Whaletown on Cortes Island in mid-December 2020 in a 14’ skiff rowboat and headed to an unknown location near the Pryce Channel, Deer passage, or Toba Inlet. Photo courtesy RCMP
RCMP need help finding man who set off from Cortes Island in 14-foot rowboat

Nathan Zuk left in December, may have been last seen in Toba Inlet approximately three weeks ago

Discarded construction materials make up nearly 40 per cent of all materials sent to the landfill from sources in the city of Victoria. (Zero Waste Victoria)
Victoria looks to curb waste by turning demolitions into deconstructions

Community drafting bylaw forcing developers to be better at salvage and recycling

Vancouver Canucks’ Jake Virtanen (18) and Calgary Flames’ Josh Leivo, front right, vie for the puck as goalie Jacob Markstrom, back left, watches during the first period of an NHL hockey game in Vancouver, on Saturday, February 13, 2021. THE CANADIAN PRESS/Darryl Dyck
Vancouver Canucks forward Jake Virtanen sued over alleged sexual assault

Statement of claim says the woman, identified only by her initials, suffered physical and emotional damages

Most Read