Overview
Town of Middle Arm wastewater treatment plant in Newfoundland and Labrador, Canada, provides secondary treatment for a small coastal community of 426 people, discharging treated effluent into the local marine environment.
The Town of Middle Arm wastewater treatment plant serves the small community of Middle Arm, located on the coast of Newfoundland and Labrador, Canada. The plant provides secondary treatment for a population of 426, with an average daily discharge volume of 350 cubic meters. As a coastal facility, it plays a key role in protecting the surrounding marine ecosystem from untreated sewage. Secondary treatment is the standard level required by Canadian federal and provincial regulations for municipal wastewater, ensuring significant reduction of organic matter and suspended solids. The plant operates under the provincial regulatory framework of Newfoundland and Labrador, which aligns with the national Wastewater Systems Effluent Regulations (WSER) under the Fisheries Act. These regulations set enforceable effluent quality standards for all wastewater systems serving populations over 100, with secondary treatment being the baseline for coastal discharges. The treated effluent is discharged into the coastal waters of the Gulf of St. Lawrence, a large and ecologically important marine basin. The area supports diverse marine life, including fish stocks and migratory seabirds. By providing secondary treatment, the plant helps maintain water quality in the coastal zone, reducing nutrient loading and protecting the health of downstream ecosystems.
Environmental context
The plant discharges into the coastal waters of the Gulf of St. Lawrence, a major marine ecosystem that supports commercial fisheries, marine mammals, and seabird colonies. The Gulf receives freshwater from numerous rivers and is influenced by tidal mixing. The secondary treatment process reduces organic pollutants and suspended solids, helping to maintain water quality in the nearshore environment and minimizing impacts on sensitive marine habitats.
Frequently asked questions
The plant is located on Newton Road in Middle Arm, Newfoundland and Labrador, Canada, on the coast of the Gulf of St. Lawrence.
The plant serves a population of 426 people in the small coastal community of Middle Arm.
The plant provides secondary treatment and discharges treated effluent into the coastal waters of the Gulf of St. Lawrence.
The plant operates under Canada's Wastewater Systems Effluent Regulations (WSER) under the Fisheries Act, which set national effluent quality standards for municipal wastewater systems.
Secondary treatment is the standard for coastal communities in Canada, as required by the WSER to protect marine environments from organic pollution and pathogens.
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