STP-4, MCGM-BMC Sewage Treatment Plant, Kandivali East, Mumbai

STP-4, part of the MCGM-BMC Sewage Treatment Plants Project, is located in Kandivali East, Mumbai, India. This operational plant is part of Mumbai's extensive wastewater infrastructure, serving the densely populated metropolitan region. The plant is situated in a coastal urban environment, with the Arabian Sea nearby. As a municipal sewage treatment plant in India, STP-4 operates under the national environmental regulations, including the Water (Prevention and Control of Pollution) Act, 1974, and the Environment Protection Act, 1986. Indian wastewater treatment plants serving large agglomerations like Mumbai are typically required to meet secondary treatment standards, with some facilities incorporating tertiary treatment for water reuse or sensitive discharge areas. The treated effluent from STP-4 is likely discharged into local water bodies that eventually drain into the Arabian Sea. The plant plays a critical role in protecting the coastal ecosystem and the health of Mumbai's waterways, including the Mithi River and Ulhas River estuaries, which are vital for local biodiversity and fisheries.

STP-4 is located in Kandivali East, Mumbai, a coastal city on the Arabian Sea. The plant's discharge likely flows into local creeks or rivers, such as the Mithi River or Dahisar River, which drain into the Arabian Sea. This coastal environment supports diverse marine life and is important for local fishing communities. Effective wastewater treatment is crucial to prevent nutrient pollution and protect the ecologically sensitive coastal waters.