Lagune de Petit Rocher Wastewater Treatment Plant - Paroisse de Beresford, New Brunswick

Lagune de Petit Rocher is a municipal wastewater treatment facility located in Petit-Rocher, within the Paroisse de Beresford, part of the Ville de Belle-Baie in Gloucester County, New Brunswick, Canada. The plant serves a population of 3,693 and is classified as a small agglomeration under Canadian wastewater regulations. As a lagoon-based system, the plant provides natural treatment through stabilization ponds, which is a common approach for small communities in Atlantic Canada. The designed capacity is 1.00 million liters per day, indicating the facility is sized to handle the local wastewater load. Canadian wastewater facilities are regulated under the federal Wastewater Systems Effluent Regulations (WSER) and provincial guidelines, which require effluent quality standards for carbonaceous matter, suspended solids, and residual chlorine. The treated effluent from the lagoon is discharged into the local watershed, which ultimately drains into the Baie des Chaleurs, a part of the Gulf of St. Lawrence. This coastal environment supports diverse marine life, including fish and shellfish, and is an important area for local fisheries and recreation. The plant's proximity to the coast underscores the need for effective treatment to protect downstream ecosystems.

The plant discharges into the Baie des Chaleurs, a large estuary connected to the Gulf of St. Lawrence. This coastal zone supports diverse aquatic life, including commercially important fish and shellfish species. The watershed is ecologically sensitive due to its role as a migratory corridor and nursery habitat. Effective wastewater treatment is essential to maintain water quality and protect the marine environment from nutrient loading and pathogens.