Usine d'epuration d'Odanak - Secondary Wastewater Treatment in Pierreville, Quebec

Usine d'epuration d'Odanak is a municipal wastewater treatment facility located at 127, Rang du Haut-de-la-Rivière in Pierreville, Quebec, Canada. The plant serves a small population of 628 residents and operates under secondary treatment standards, which is appropriate for its scale and inland location. As a secondary treatment plant, it employs biological processes to reduce organic matter and suspended solids, meeting typical Canadian regulatory requirements for communities of this size. The plant discharges a daily volume of 282.00 cubic meters of treated effluent, reflecting the modest demand from the local population. The treated wastewater is released into the local river system, which flows through the Centre-du-Québec region and eventually reaches the St. Lawrence River. This discharge supports the ecological health of downstream waters by removing pollutants before release, helping to protect aquatic life and water quality in the broader St. Lawrence watershed.

The plant discharges into the local river network that drains into the St. Lawrence River, a major waterway that flows into the Gulf of St. Lawrence and the Atlantic Ocean. The receiving waters support diverse aquatic species and are part of a regionally important ecosystem. The secondary treatment process reduces nutrient and organic loads, helping to maintain water quality in downstream habitats.