Kopri Wastewater Treatment Plant, Thane, Maharashtra, India

Kopri wastewater treatment plant is located in Thane, Maharashtra, India, serving a population of over 800,000 people. As a major facility in the Mumbai metropolitan region, it plays a critical role in managing wastewater from one of India's most densely populated urban areas. The plant has a designed capacity of 1.00 million cubic meters per day, reflecting the scale required for a city of Thane's size. Under India's Water (Prevention and Control of Pollution) Act, 1974, and the Environment Protection Rules, large treatment plants like Kopri are expected to meet effluent discharge standards set by the Central Pollution Control Board (CPCB). Treated wastewater from Kopri likely discharges into the Ulhas River or its tributaries, which flow into the Arabian Sea via the Thane Creek. This estuarine environment supports diverse aquatic life and is an important ecological corridor. The plant's performance directly affects water quality in the creek and coastal waters, impacting local fisheries and mangrove ecosystems.

Kopri plant discharges into the Ulhas River system, which drains into Thane Creek and ultimately the Arabian Sea. This estuarine zone supports mangroves, fish nurseries, and migratory birds. The plant's effluent quality is critical for maintaining the ecological health of the creek and coastal waters, which are under pressure from urbanization and industrial activity.