STP of VMSS Chhani - Vadodara Rural Taluka Wastewater Treatment Plant, Gujarat

STP of VMSS Chhani is a municipal wastewater treatment plant located in Vadodara Rural Taluka, Vadodara district, Gujarat, India. The facility is currently under construction and is designed to serve a population of 140,305, classifying it as a medium-to-large agglomeration under Indian urban wastewater management norms. As the plant is under construction, its treatment process and discharge details are not yet finalized. In India, sewage treatment plants of this scale typically employ biological treatment methods such as activated sludge or sequential batch reactors, and are required to meet effluent standards set by the Central Pollution Control Board (CPCB) under the Water (Prevention and Control of Pollution) Act, 1974. The designed capacity is 1.00 million liters per day, indicating a significant infrastructure investment for the region. The plant will discharge treated wastewater into local water bodies that ultimately drain into the Gulf of Khambhat via the Mahi River or its tributaries. This coastal drainage makes proper treatment essential to protect downstream ecosystems, including estuarine habitats and marine biodiversity in the Arabian Sea.

The plant is situated in the Mahi River basin, which flows through central Gujarat and empties into the Gulf of Khambhat, a shallow inlet of the Arabian Sea. The downstream environment supports diverse aquatic life and is an important migratory corridor for birds and marine species. Effective treatment at this plant will help reduce nutrient and pathogen loads entering the river system, thereby protecting both freshwater and coastal ecosystems.