HG Outfall 3 Wastewater Treatment Plant, Harbour Grace, Newfoundland and Labrador

HG Outfall 3 is a municipal wastewater treatment facility located in Harbour Grace, Newfoundland and Labrador, Canada. The plant serves a small population of about 1,114 residents and operates under secondary treatment standards, which involve biological processes to reduce organic matter and suspended solids. As a coastal facility within 10 km of the Atlantic Ocean, it plays a key role in protecting local marine environments. The plant's treatment process is classified as secondary, meeting the basic requirements for wastewater treatment in Canada. Canadian wastewater facilities are regulated under provincial and federal guidelines, including the Fisheries Act and the Wastewater Systems Effluent Regulations (WSER), which set national standards for effluent quality. The treated effluent from HG Outfall 3 is discharged into the Atlantic Ocean near Harbour Grace. This coastal discharge contributes to the health of the marine ecosystem, supporting local fisheries and biodiversity. The plant's operation helps mitigate pollution impacts on the surrounding waters, which are part of the broader Newfoundland and Labrador coastal region.

HG Outfall 3 discharges treated wastewater into the Atlantic Ocean near Harbour Grace, Newfoundland. The receiving waters are part of the productive coastal ecosystem of Conception Bay, which supports diverse marine life including fish, seabirds, and marine mammals. The area is ecologically sensitive due to its role in local fisheries and migratory patterns. Proper treatment is essential to minimize nutrient loading and protect water quality in this coastal environment.