During excavation, a pipeline carrying a material with a UN number 1203 (Gasoline) is accidentally ruptured, resulting in a significant spill into a nearby storm drain. As per Ontario Regulation 213/91 (Construction Projects) and the Environmental Protection Act, who must be notified immediately?

Question: During excavation, a pipeline carrying a material with a UN number 1203 (Gasoline) is accidentally ruptured, resulting in a significant spill into a nearby storm drain. As per Ontario Regulation 213/91 (Construction Projects) and the Environmental Protection Act, who must be notified immediately?

Answer options: ✅ The Ministry of the Environment, Conservation and Parks (MECP), and the WSIB.

• Only the site supervisor, who will then decide on further action.
• The municipal water utility department only, due to the storm drain involvement.
• The local fire department and your immediate supervisor.

Correct answer: The Ministry of the Environment, Conservation and Parks (MECP), and the WSIB.

Explanation: For spills of hazardous materials that enter the natural environment, immediate notification to the MECP (formerly MOE) is mandatory, alongside internal company reporting and potentially WSIB if worker injury is involved, as outlined in Ontario's environmental regulations.