HG Outfall 5 Wastewater Treatment Plant, Harbour Grace, Newfoundland and Labrador

HG Outfall 5 is a municipal wastewater treatment facility located in Harbour Grace, a town on the Avalon Peninsula of Newfoundland and Labrador, Canada. The plant serves a population of about 1,225 residents and operates with secondary treatment, which is typical for small communities in the province. As a secondary treatment plant, HG Outfall 5 uses biological processes to remove organic matter and suspended solids, meeting Canadian federal and provincial effluent quality standards. In Canada, wastewater treatment is regulated under the Fisheries Act and the Wastewater Systems Effluent Regulations (WSER), which set national standards for effluent quality. The treated effluent from HG Outfall 5 is discharged into the coastal waters of Conception Bay, part of the Atlantic Ocean. This area supports diverse marine life, including fish, crustaceans, and seabirds. Proper treatment helps protect the local marine ecosystem and maintains water quality for recreational and commercial activities.

The plant discharges into Conception Bay, which opens into the Atlantic Ocean. This coastal environment supports a variety of marine species and is important for local fisheries. Effective secondary treatment reduces the risk of nutrient enrichment and pathogen contamination, helping to preserve water quality and ecosystem health in the bay.