Matheson Wastewater Treatment Plant and Collection System - Black River-Matheson, Ontario

The Matheson Wastewater Treatment Plant and Collection System is located in Black River-Matheson Township, Cochrane District, Ontario, Canada. This facility serves a small population of 805 residents, providing essential wastewater treatment for the community. The plant operates with secondary treatment, which is appropriate for its scale. Under Canadian provincial regulations, such facilities are typically required to meet effluent quality standards set by the Ontario Ministry of the Environment, Conservation and Parks. The plant discharges 522 cubic meters of treated wastewater per day. The treated effluent is released into the local watershed, which ultimately drains into the Arctic Ocean via the Moose River system. The plant plays a key role in protecting downstream water quality in this ecologically sensitive boreal region, supporting aquatic habitats and maintaining the health of the surrounding environment.

The plant discharges into the local watershed within the Moose River basin, which flows into James Bay and then Hudson Bay. This region is part of the boreal forest ecosystem, supporting diverse aquatic life including fish species such as walleye and northern pike. The secondary treatment helps reduce nutrient and organic loads, protecting downstream water quality in this ecologically sensitive area.