Station traitement eaux usees - Roberval, Quebec Wastewater Treatment Plant

Station traitement eaux usees is a municipal wastewater treatment facility located in Roberval, Quebec, Canada. It serves a population of approximately 9,156 people, classifying it as a small to medium agglomeration under Canadian wastewater management standards. The plant is situated in the Saguenay-Lac-Saint-Jean region, an area known for its cold climate and significant water resources. As a Canadian facility, the plant operates under provincial and federal regulations, including the Quebec Environment Quality Act and the Canadian Environmental Protection Act. For agglomerations of this scale, secondary treatment is typically required to reduce organic matter and suspended solids. The plant's designed capacity is 1.00 (likely in million liters per day or similar units), indicating a modest infrastructure suited to the local population. The treated effluent is discharged into the local watershed, which ultimately drains into Lac Saint-Jean, a large freshwater lake, and then via the Saguenay River to the St. Lawrence Estuary. This water body supports diverse aquatic life, including fish species such as lake trout and walleye, and is an important ecological corridor in the region.

The plant's discharge enters the local watershed that flows into Lac Saint-Jean, a major lake in Quebec, and then through the Saguenay River to the St. Lawrence Estuary. This downstream environment supports diverse aquatic ecosystems, including fish populations and migratory birds. The region's cold climate and seasonal ice cover influence treatment efficiency and receiving water quality, requiring robust operational practices to protect the sensitive freshwater and estuarine habitats.