Chalk River Laboratories Wastewater Treatment Plant, Deep River, Ontario

Chalk River Laboratories is a wastewater treatment plant located in Deep River, Ontario, Canada, within Renfrew County. It serves a small population of 68 people and operates as a secondary treatment facility. The plant is situated on the grounds of the Chalk River Laboratories nuclear research site, which influences its operational context. As a secondary treatment plant, it provides biological treatment to reduce organic matter and suspended solids. The plant's discharge volume is reported at 683 cubic meters. In Canada, wastewater treatment of this scale is typically regulated under provincial environmental protection acts and the federal Fisheries Act, which governs effluent quality to protect aquatic life. The plant discharges into the Ottawa River watershed, which flows into the St. Lawrence River and eventually the Atlantic Ocean. The Ottawa River supports diverse aquatic ecosystems and is an important waterway for both wildlife and human use. The plant's secondary treatment ensures that effluent meets standards to minimize impact on this sensitive river system.

The plant discharges into the Ottawa River, a major tributary of the St. Lawrence River, which drains into the Atlantic Ocean. The Ottawa River supports diverse aquatic life, including fish species such as walleye and sturgeon, and is an important migratory corridor. The surrounding area is forested and sparsely populated, with the river providing drinking water and recreational opportunities downstream.