TERRACE BAY, Ontario — AV Terrace Bay has been convicted on two charges: Failing to control the quality of discharged effluent to ensure that acute toxicity tests resulted in no more than a 50% mortality rate for the test organisms; and Failing to comply with an industry standard by discharging Total Reduced Sulphur compounds. …AV Terrace Bay was convicted of two violations under the Environmental Protection Act, fined $525,000 plus a victim fine surcharge of $131,250, and given 12 months to pay. …Due to financial constraints and market conditions, the mill has been in a warm idle state and has not been producing product or revenue since at least January 2024. The mill generates industrial effluent that undergoes primary and secondary treatment prior to discharging to Lake Superior via Blackbird Creek. …On May 1, 2023, 100% of the Rainbow Trout died during an acute lethality test performed on a grab sample of the mill’s final effluent.