River system contaminated by mercury waste discharged by operation of pulp and paper mill — Action for damages commenced against mill owners in relation to contamination — Province granting indemnity in context of settlement of action to current and former mill owners in relation to environmental damage caused by mercury discharge — Remediation order later issued by provincial environment regulator in relation to waste disposal site on mill property — Whether indemnity applies to cover costs of complying with remediation order. — appeal allowed 12/06/2019 — Advocacy Supreme Advocacy acted as agent for the Respondent.

2019 SCC 60