M/s CMWSSB Navalur Sewage Treatment Plant, Chennai Corporation, Tamil Nadu

The M/s CMWSSB Navalur Sewage Treatment Plant is located in the Sholinganallur zone of Chennai Corporation, within the Chengalpattu district of Tamil Nadu, India. Currently under construction, the plant is designed to serve a population of about 40,087 residents, addressing the wastewater needs of this growing urban area. As a municipal facility under the Chennai Metropolitan Water Supply and Sewerage Board (CMWSSB), it will play a key role in the region's sanitation infrastructure. The plant's scale aligns with India's national wastewater treatment standards. Under the National Mission for Clean Ganga and the Swachh Bharat Mission, sewage treatment plants of this size are typically expected to provide secondary treatment as a minimum, with potential for tertiary treatment depending on local discharge requirements. The plant's designed capacity of 1.00 million liters per day indicates it is sized to handle the projected wastewater flow from the served population. The plant is situated within 50 kilometers of the coast, and its treated effluent will likely discharge into local water bodies that drain into the Bay of Bengal. The region's water systems include the Adyar River and the Buckingham Canal, which flow through Chennai and ultimately reach the sea. Proper treatment at this plant will help reduce pollution loads in these waterways, protecting both aquatic ecosystems and downstream coastal environments.

The plant is located in the coastal city of Chennai, within the watershed of the Adyar River and Buckingham Canal, which drain into the Bay of Bengal. These water bodies support diverse aquatic life and are important for local fisheries and livelihoods. The plant's treated effluent will help mitigate nutrient and pathogen loads, reducing the risk of eutrophication and protecting the sensitive coastal ecosystem of the Bay of Bengal.