NOVA Chemicals says the "all clear" has been issued after a hydrocarbon release at the Corunna facility Saturday.
According to a separate alert from the Aamjiwnaang Notification System, there was a loss of containment in DPG unit - Benzene, at the 785 Petrolia Line site.
The company said results at the perimeter of the site showed no off-site readings
They also said the release was immediately isolated and continuous air monitoring was conducted at multiple locations
They continue to investigate and manage onsite activities.