McKee s Mills Lagoon Wastewater Treatment Plant, Paroisse de Sainte-Marie, New Brunswick

McKee s Mills Lagoon is a municipal wastewater treatment facility located in Paroisse de Sainte-Marie, within the Kent County region of New Brunswick, Canada. The plant serves a small population of 1,114 residents and operates under secondary treatment standards, which is typical for rural communities in the province. The plant discharges approximately 500 cubic meters of treated wastewater daily. As a secondary treatment facility, it provides biological treatment to reduce organic matter and suspended solids before discharge. In Canada, such plants are regulated under provincial environmental acts, with New Brunswick's Clean Environment Act governing effluent quality standards for facilities of this scale. The treated effluent is released into the local watershed, which drains into the Northumberland Strait of the Gulf of St. Lawrence. The coastal location means the discharge may influence nearshore marine ecosystems, including estuarine habitats that support fish and migratory birds. The plant's operation helps protect downstream water quality in this ecologically sensitive coastal region.

The plant discharges into a watershed that flows into the Northumberland Strait, part of the Gulf of St. Lawrence. This coastal area supports diverse marine life, including shellfish, groundfish, and migratory waterfowl. The secondary treatment reduces nutrient and pathogen loads, helping to maintain water quality in nearshore habitats that are important for local fisheries and tourism.