Basin B Wastewater Treatment Plant, Corner Brook, Newfoundland and Labrador

Basin B is a wastewater treatment plant serving the community of Corner Brook, located in the province of Newfoundland and Labrador, Canada. The plant serves a population of approximately 2,227 people and is classified as a small-scale municipal facility. It operates under Canada's federal and provincial wastewater regulations, which require effluent quality standards for facilities discharging into sensitive environments. The plant has a designed capacity of 1.00 million liters per day. As a small agglomeration, it is subject to the Wastewater Systems Effluent Regulations (WSER) under the Fisheries Act, which mandate minimum secondary treatment or equivalent performance standards for most systems. The regulatory framework ensures that effluent meets prescribed limits for carbonaceous matter, suspended solids, and residual chlorine. The treated effluent from Basin B is discharged into the Humber River system, which flows into the Bay of Islands and eventually the Gulf of St. Lawrence. This coastal region supports diverse marine life, including fish stocks and migratory birds. The plant's proximity to the coast underscores the importance of effective treatment to protect downstream aquatic ecosystems and recreational water quality.

Basin B discharges into the Humber River, which flows through Corner Brook and empties into the Bay of Islands, a large estuary on the west coast of Newfoundland. The Bay of Islands connects to the Gulf of St. Lawrence, a critical marine habitat for species such as Atlantic salmon, cod, and herring. The watershed supports important fisheries and is a migratory corridor for seabirds. Effective wastewater treatment is essential to prevent nutrient loading and contamination that could harm this sensitive coastal ecosystem.