Block 97 RBC Wastewater Treatment Plant, Town of Massena, New York, Canada

Block 97 RBC is a wastewater treatment plant located on Barnhart Isle in the Town of Massena, Saint Lawrence County, New York, Canada. It serves a small population of 149 residents, operating as a secondary treatment facility under Canadian and provincial regulations. The plant uses a rotating biological contactor (RBC) process, as indicated by its name, which is a biological treatment method suitable for small communities. With a discharge volume of 67.00 cubic meters per day, it meets the secondary treatment standards required for its scale. In Canada, such facilities are typically regulated under provincial environmental protection acts, ensuring compliance with effluent quality guidelines. The treated effluent is discharged into the Saint Lawrence River, a major waterway that flows into the Gulf of Saint Lawrence and ultimately the Atlantic Ocean. This river supports diverse aquatic life and is an important migratory corridor for fish species. The plant's operation helps maintain water quality in this ecologically sensitive region.

Block 97 RBC discharges into the Saint Lawrence River, which flows northeast through the Great Lakes-St. Lawrence Seaway into the Gulf of Saint Lawrence and the Atlantic Ocean. The river supports diverse aquatic ecosystems, including fish spawning grounds and migratory bird habitats. The plant's secondary treatment reduces organic pollutants and suspended solids, protecting downstream water quality in this ecologically important watershed.