Station d'epuration Melocheville - Salaberry-de-Valleyfield, Quebec Wastewater Treatment Plant

Station d'epuration Melocheville is a wastewater treatment plant located in Salaberry-de-Valleyfield, Quebec, Canada. It serves a small population of 562 residents within the Montérégie administrative region. The plant is situated in the Parc régional Beauharnois-Salaberry, an industrial and port area. As a small-scale facility in Canada, the plant operates under provincial and federal environmental regulations, including the Canadian Environmental Protection Act and Quebec's Regulation respecting wastewater treatment. For agglomerations serving fewer than 2,000 people, secondary treatment is typically required to protect receiving waters. The plant's operational status confirms it is actively treating wastewater from the local community. The plant discharges treated effluent into the St. Lawrence River watershed, which ultimately flows into the Gulf of St. Lawrence and the Atlantic Ocean. This water body supports diverse aquatic life, including fish species such as yellow perch and walleye, and is an important migratory corridor for birds. The plant's location in an industrial area underscores the need for effective treatment to protect downstream ecosystems.

The plant discharges into the St. Lawrence River watershed, which drains into the Gulf of St. Lawrence and the Atlantic Ocean. This river system supports a variety of aquatic species and serves as a critical habitat for migratory fish like American eel and Atlantic sturgeon. The surrounding Montérégie region features agricultural and industrial land uses, making proper wastewater treatment essential to prevent nutrient loading and contamination of downstream waters.