Giant Mine cleanup cost in Yellowknife rose to 4.38 billion Canadian dollars
Short record: the main facts, with sources. A full case file has not been prepared.
- The record does not name which of my species, waters, soils or forests were harmed.
The federal cost of cleaning up Yellowknife's Giant Mine rose to 4.38 billion Canadian dollars in 2022, all of it public money, Cabin Radio reported. Arsenic is to be frozen, and perpetual upkeep is required.
- Canadian taxpayers — the full 4.38 billion Canadian dollars, which Cabin Radio says is public money Cabin Radio
What happened
CBC reported in August 2022 that the federal cost of cleaning up Giant Mine had risen to 4.38 billion Canadian dollars, and that the owner, Royal Oak, had gone into receivership in 1999.
Cabin Radio reported that all of the 4.38 billion Canadian dollars is public money.
Cabin Radio reported that 237,000 tonnes of arsenic will be frozen, that the cleanup costs about 1 billion Canadian dollars, and that perpetual maintenance costs 2 million Canadian dollars a year.
In court and with insurers
Lawsuits and rulings
Insurers
What we don't know
Nature
- Not measured Harm to nature: The record holds no measurement of harm to nature.
Record
- Unclear Whether the perpetual maintenance cost is included in the 4.38 billion figure is not stated in the sources reviewed.
- None on record The original planned cost is not stated; the Cabin Radio headline says the cleanup will cost much more than planned.
- None on record No criminal or personal penalty is documented in the sources reviewed.
- None on record Health and environmental effects on nearby communities are not described in the sources reviewed.
- None on record Who gained from the mine's operation is not stated in the sources reviewed.
Did the harm stop?
Not stated in the sources reviewed.
Who paid?
Not stated in the sources reviewed.
Sources
Press and investigations
- Cleaning up Giant Mine will take longer and cost much more than plannedCabin Radio · 2022
Connected cases
- Alberta orphan wells and mine liabilities Canada · 2002 Related matter
- Government of Canada (Government) — here: Bears the federal cost of the cleanup; there: Source of federal funding (2020) and loans
- Canada's Giant Mine arsenic cleanup cost rises to CAD 4.38 billion Canada · 1948–2038
- Government of Canada (Government) — here: Bears the federal cost of the cleanup; there: Federal government funding the remediation
- Royal Oak (Company) — here: Former owner; in receivership from 1999; there: Former owner; placed in receivership in 1999
- About 100 tonnes of iron released off Haida Gwaii in 2012 ocean experiment Canada · 2012–2013
- Government of Canada (Government) — here: Bears the federal cost of the cleanup; there: Environment ministry searched in 2013; no charges recorded
- Alberta and Ottawa tie new oil pipeline to Pathways carbon capture plan Canada · 2025
- Government of Canada (Government) — here: Bears the federal cost of the cleanup; there: Party to the November 2025 agreement; federal tax credit
- Alberta orphan wells, closure liabilities and the Redwater ruling Canada · 2002
- Government of Canada (Government) — here: Bears the federal cost of the cleanup; there: Source of federal funding (2020) and loans
- Canada narrowed federal environmental reviews in 2012 and again in 2025 Canada · 2012–2025
- Government of Canada (Government) — here: Bears the federal cost of the cleanup; there: Federal government; subject of the 2012 assessment law and Bill C-5
- Lac-Mégantic rail disaster (Quebec) Canada · 2012–2026
- Government of Canada (Government) — here: Bears the federal cost of the cleanup; there: Contributed C$75 million to the settlement fund
- Québec caribou emergency order and the 17 percent protection target Canada · 2020–2026
- Government of Canada (Government) — here: Bears the federal cost of the cleanup; there: Began the emergency-order process
- Ruby River seeks $588m-$1bn from Canada over rejected Québec LNG plant Canada · 2021
- Government of Canada (Government) — here: Bears the federal cost of the cleanup; there: respondent
- Soviet nuclear satellite Cosmos 954 crashes in Canada; USSR pays C$3m in 1981 Canada · 1978–1981
- Government of Canada (Government) — here: Bears the federal cost of the cleanup; there: Claimant for damage from Cosmos 954
- Trans Mountain pipeline insurers (Canada) Canada · 2018–2024
- Government of Canada (Government) — here: Bears the federal cost of the cleanup; there: Owner since 2018; guarantor of the credit facility
- Westmoreland's claim over Alberta coal exit dismissed; company ordered to pay costs Canada · 2024
- Government of Canada (Government) — here: Bears the federal cost of the cleanup; there: respondent