Atomic Energy of Canada Limited — federal contaminated sites
Atomic Energy of Canada Limited is custodian of 8 sites in Canada's Federal Contaminated Sites Inventory — 0.03% of the 24,426 sites nationwide. 6 are active, 2 are closed, and 0 are suspected. Reported federal expenditure on these sites totals $2.47B (23% of the national total), an average of $308.9M per site.
Open these sites on the interactive map
Status and priority
| Sites | Share | |
|---|---|---|
| Active | 6 | 75% |
| Suspected | 0 | 0% |
| Closed | 2 | 25% |
| Sites | Share | |
|---|---|---|
| High Priority for Action | 3 | 38% |
| Medium Priority for Action | 0 | 0% |
| Low Priority for Action | 3 | 38% |
| Not a Priority for Action | 2 | 25% |
| Insufficient Information | 0 | 0% |
Reported expenditure by fiscal year
Where Atomic Energy of Canada Limited sites are located
| Province / Territory | Sites | Reported spend |
|---|---|---|
| Ontario | 6 | $2.46B |
| Alberta | 2 | $15.2M |
Most common contaminant types
Most affected media
Largest sites by reported expenditure
| Site | Municipality | Province / Territory | Reported spend |
|---|---|---|---|
| Port Hope Area | Port Hope | Ontario | $1.99B |
| Port Granby Waste Management Facility | Clarington | Ontario | $341.3M |
| Welcome Waste Management Facility | Port Hope | Ontario | $120.6M |
| Northern Transportation Route | Wood Buffalo | Alberta | $15.0M |
| Interim Waste Management Program | Port Hope | Ontario | $5.0M |
| Greater Toronto Area | Caledon | Ontario | $2.5M |
| Fort McMurray | Wood Buffalo | Alberta | $258K |
| Passmore | Toronto | Ontario | $154K |
Municipalities with the most sites
Port Hope (3) · Wood Buffalo (2) · Caledon (1) · Clarington (1) · Toronto (1)
Figures are computed from the official FCSI open-data export published August 3, 2026, under the Open Government Licence – Canada. This is an unofficial site — verify against the official inventory before relying on details.