Judges at the Supreme Court of Canada heard arguments at the end of March about who will be responsible for clean-up costs at the Dryden mill, but there’s no date for the release of the court’s decision.

According to a report by Kenoraonline.com, The province has been challenging the validity of an agreement with forestry companies reached in 1985, which was later transferred to a new buyer for the property. The deal meant Queen’s Park would take on the environmental liability, in return for a new company buying the mill and providing upgrades. However, the province is challenging the deal.

Hearings on March 28 looked at whether the Court of Appeal erred when it failed to find the terms of the 1985 Indemnity meant that Resolute FP Canada Inc. is entitled to benefit from the 1985 Indemnity, as the corporate successor of Great Lakes Forest Products Limited.

In 2011, the province ordered the companies to remediate the former mill site in Dryden, where some 9,000 kg of toxic effluent was dumped in the English-Wabigoon River system in the 1960s.

Researchers have since found mercury is still leaking from the site into local waterways.

Domtar currently operates the mill in the community. However, the company has said responsibility for cleaning up mercury from previous owners was transferred to the province in 1985.

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