Seine River First Nation Wastewater Treatment Plant, Ashkibwaanikaaning, Ontario

The Seine River First Nation wastewater treatment plant is located in Ashkibwaanikaaning (Seine River Village) in the Rainy River District of Northwestern Ontario, Canada. This small community facility serves a population of 246 residents and operates with secondary treatment, meeting Canadian federal and provincial wastewater standards for small systems. As a secondary treatment plant, it provides biological treatment to reduce organic matter and suspended solids before discharge. The plant's discharge volume is approximately 180 cubic meters per day. Under Canada's Wastewater Systems Effluent Regulations (WSER), secondary treatment is the baseline requirement for all municipal systems, ensuring protection of receiving waters. The plant discharges into the Seine River, which flows into the Rainy River and ultimately into Lake of the Woods, part of the Lake Winnipeg Basin. This watershed supports diverse aquatic life and is important for local First Nations communities. The plant's operation helps protect downstream water quality in this ecologically sensitive region.

The plant discharges into the Seine River, a tributary of the Rainy River, which flows into Lake of the Woods and then via the Winnipeg River to Lake Winnipeg. This watershed is part of the Hudson Bay drainage basin. The area supports cold-water fish species and migratory waterfowl, and the plant's secondary treatment helps maintain water quality in this remote, ecologically sensitive region.