ETANG Wastewater Treatment Plant, Saint-Lambert-de-Lauzon, Quebec

ETANG is a wastewater treatment plant located in Saint-Lambert-de-Lauzon, Quebec, Canada. It serves a small community of approximately 1,604 residents, providing secondary treatment to municipal wastewater. The plant is situated inland, more than 10 km from the coast, and operates under Canadian provincial and federal environmental regulations. The plant employs secondary treatment processes, which are standard for communities of this size in Canada. Secondary treatment typically involves biological processes to remove organic matter and suspended solids. Reflecting the scale of the community it serves. Under the Canadian Environmental Protection Act and Quebec's environmental regulations, such facilities are required to meet effluent quality standards to protect receiving waters. The treated effluent is discharged into local waterways that eventually drain into the St. Lawrence River system. The Chaudière-Appalaches region is part of the St. Lawrence watershed, which supports diverse aquatic life and is an important ecological corridor. The plant's operations help protect downstream water quality in the St. Lawrence River and its estuary.

The plant discharges into local streams that flow into the Chaudière River, a tributary of the St. Lawrence River. The St. Lawrence River is a major waterway that supports a rich ecosystem, including fish species such as Atlantic salmon and sturgeon, and provides habitat for migratory birds. The region's watershed is ecologically sensitive, and the plant's secondary treatment helps reduce nutrient and organic pollution, contributing to the health of the downstream environment.