Etang aere Auclair Wastewater Treatment Plant, Auclair, Quebec

Etang aere Auclair is a municipal wastewater treatment facility located at 402, Chemin du Rang-Ouest in Auclair, Quebec, Canada. The plant serves a small population of 211 residents in the Témiscouata regional county municipality within the Bas-Saint-Laurent administrative region. It operates under the regulatory framework of the Canadian provincial and federal environmental protection acts. The plant provides secondary treatment, which is the standard level for small communities in Quebec under the provincial wastewater regulations. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant discharges an average of 94.90 cubic meters of treated wastewater per day, reflecting its small service population. The treated effluent is released into the local watershed, which ultimately drains into the Saint Lawrence River via the Madawaska River and the Saint Lawrence Estuary. The Saint Lawrence River is a major ecological corridor supporting diverse aquatic life, including fish species such as Atlantic salmon and lake sturgeon, and provides critical habitat for migratory birds. The plant's operation helps protect downstream water quality in this ecologically significant region.

The plant discharges into the local watershed within the Témiscouata region, which drains into the Madawaska River and eventually the Saint Lawrence River. The Saint Lawrence River and its estuary support diverse aquatic ecosystems, including fish spawning grounds and migratory bird habitats. The plant's secondary treatment helps reduce nutrient and organic pollution, protecting downstream water quality in this ecologically sensitive area.