Sangvi Phase II Wastewater Treatment Plant, Pimpri-Chinchwad, Maharashtra

Sangvi Phase II is an operational wastewater treatment plant located in the Sangvi area of Pimpri-Chinchwad, a city in the Pune district of Maharashtra, India. The plant serves a population of about 133,624, placing it in the category of a medium-to-large agglomeration. It is part of the municipal infrastructure managed by the Pimpri-Chinchwad Municipal Corporation. As a plant of this scale in India, it operates under the Water (Prevention and Control of Pollution) Act, 1974, and the Environment (Protection) Act, 1986, which mandate treatment standards for wastewater discharge. The Central Pollution Control Board (CPCB) and the Maharashtra Pollution Control Board (MPCB) oversee compliance. For agglomerations serving over 100,000 people, secondary treatment is typically required, and tertiary treatment may be needed for discharge into sensitive water bodies. The plant's treated effluent likely discharges into local watercourses that drain into the Mula-Mutha River system, which flows through Pune and eventually joins the Bhima River, a tributary of the Krishna River. The Krishna River basin supports diverse aquatic life and is an important water resource for agriculture and drinking water in the region. Proper treatment at Sangvi Phase II helps protect downstream ecosystems and public health.

The plant's treated effluent likely enters the Mula-Mutha River system, which flows through Pune and joins the Bhima River, a major tributary of the Krishna River. The Krishna River basin is ecologically significant, supporting diverse aquatic species and providing water for irrigation and domestic use. Downstream areas include estuaries and coastal zones along the Bay of Bengal, where nutrient pollution can impact marine ecosystems. Effective wastewater treatment at Sangvi Phase II is crucial for maintaining water quality in this densely populated and agriculturally important basin.