Canada | Alberta business fined $1 Million for unlawful deposit of effluent into the Peace River

October 21, 2024

At the Alberta Court of Justice, Mercer Peace River Pulp Ltd. (Mercer Peace River) was ordered to pay a $1 million fine after pleading guilty to one count of violating the Fisheries Act.

The charge follows an investigation by Environment and Climate Change Canada enforcement officers that determined that on 14 April 2021, Mercer Peace River deposited or permitted the deposit of 30,868,000 litres of effluent (wastewater) that was acutely lethal (toxic) to fish from its pulp mill near the Town of Peace River, Alberta, into the Peace River.

The deposit of acutely lethal effluent into fish-bearing waters violates a condition of the authorisation to deposit effluent that is set out in subsection 6(5) of the Pulp and Paper Effluent Regulations, in contravention of subsection 36(3) of the Fisheries Act.

The pulp mill operates a wastewater treatment system that treats effluent before releasing it to the Peace River. The wastewater treatment system has a spill pond designed to capture and store effluent resulting from spills or unusual operating conditions. Once in the spill pond, effluent is gradually reintroduced back into the treatment system at a controlled rate to minimise its harmful effect.

Environment and Climate Change Canada’s investigation determined that the offence occurred during a maintenance shutdown of the pulp mill. The shutdown generated waste materials from process vessels and wastewater from cleaning operations, which were directed into the spill pond. Mercer Peace River had insufficient capacity in the spill pond to capture the additional effluent. As a result, the spill pond did not function as designed. The investigation determined that the reduced capacity within the spill pond contributed to the offence. Mercer Peace River has since taken steps to increase the capacity of the spill pond by removing sludge and upgrading the associated pumping system.

The fine will be directed to the Government of Canada’s Environmental Damages Fund.

This conviction will result in the company’s name being added to the Environmental Offenders Registry. The Registry contains information on corporations’ convictions for offences committed under certain federal environmental laws.


This is valid as of the 21st October 2024.
Environment and Climate Change Canada

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