The Vancouver Landfill in Delta is where loads of bottom ash from Metro Vancouver's waste-to-energy plant end up. Tests show some loads have high levels of cadmium.

Metro incinerator ash fails tests on new front

Bottom ash landfilled in Delta found to be high in cadmium

Some samples of bottom ash from Metro Vancouver’s garbage incinerator are testing positive for high concentrations of cadmium – sometimes at twice the allowable levels for conventional landfilling in Delta.

A Metro Vancouver staff report shows that so far this year bottom ash loads have failed 19 times out of 479 tests, with eight tests coming back at more than twice the limit.

The test failures are different from the high cadmium levels detected a year ago in some fly ash – taken from scrubbers in the waste-to-energy plant’s stack – that operator Covanta Energy failed to report until those loads were already dumped at the Cache Creek regional landfill.

The bottom ash instead goes to the Vancouver Landfill at Burns Bog in Delta.

Trouble with incoming loads there was first flagged in 2007, when some bottom ash exceeded allowed levels of lead, but Metro’s report says subsequent testing determined it wasn’t hazardous to workers and steps were taken to ensure compliance with the landfill’s operating certificate.

Metro was advised starting in April of this year that some bottom ash was exceeding leachable cadmium levels.

At the request of the B.C. environment ministry, Metro has filed a management plan to address questions about bottom ash.

Meanwhile, bottom ash loads from two weeks in July and one week in August that tested at more than twice the regulatory limit are being stockpiled at the Vancouver Landfill pending further decisions.

Ash that fails the test but is below twice the limit is being landfilled after further tests confirm it’s not hazardous, according to Metro.

Up until April, the ash was being used in road construction and as cover at the landfill.

According to Metro, sources of cadmium in the waste stream are thought to have increased in recent years.

Household batteries are the main source, particularly rechargeables, including electronic device batteries. A much smaller fraction likely comes from plastics.

Metro officials say they intend to further study cadmium sources in the waste stream and to work with Covanta to ensure the treatment of bottom ash to neutralize metals ahead of landfilling is effective.

The region will also push for increased recycling of batteries through product stewardship programs.

The question of what happens to suspect loads of fly ash at the Cache Creek landfill is still unresolved.

Cache Creek Mayor John Ranta said consultants have been hired to try to determine whether it must be landfilled elsewhere instead.

He hopes to learn if the plant’s process for binding bottom ash is effective indefinitely or if it degrades over tiime.

Findings are expected in mid-October.

Fly ash from the incinerator has been trucked to a landfill near Hinton, Alberta instead of Cache Creek, at a cost of about $500,000 more per year, since the test failures came to light.

Just Posted

Friends describe murder victim as ‘most caring guy we knew’

Jagvir Malhi of Abbotsford was not involved in gangs or criminal activity, they say

Ten-year sentence for man convicted of belt-strangling death in Abbotsford

Shayne McGenn guilty of manslaughter in 2016 death of David Delaney, 63

Former Mission educator receives national Indigenous role model award

Kimberly Sommer, now in Abbotsford, went to Edmonton last week to receive the Indspire role model award

Gas price drop expected to hit Fraser Valley today

Analyst says to take advantage, warns slight increase may follow

No charges against cop accused of stuffing money into sock during search

BC Prosecution Service says not enough evidence against Abbotsford officer

VIDEO: People with diabetes meet their alert dogs

A diabetic alert dog is trained to detect low blood sugar in people who have Type 1 diabetes

BREAKING: Metro Vancouver mayors cancel Surrey LRT in favour of SkyTrain

TransLink will immediately suspend work on light rail

WATCH: Brother of missing Hope woman makes emotional appeal for more media attention

Next search for Shawnee Inyallie Nov. 18 along Highway 1 towards Boston Bar

Roy Clark, country singer, ‘Hee Haw’ star, has died

Guitar virtuoso died because of complications from pneumonia at home in Tulsa, Okla. He was 85.

Lack of funding, culture on campus biggest barriers for Indigenous students: report

Report based on nearly 300 responses found lack of support at post-secondary schools a big concern

Tinder sex assault suspect charged; additional alleged victims sought

Vincent Noseworthy of Alberta is accused of aggravated sexual assault, unlawful confinement and more

24th annual Realtors Care Blanket Drive runs until Nov. 20 in Mission

All donations stay in the community in which they are collected

Drug-related deaths double for B.C. youth in care, advocate says

Teens say positive connections with adults key to recovery

Children’s strawberry-flavoured medicines recalled due to faulty safety cap

Three different acetaminophen syrups part of nationwide recall

Most Read