STP Khaliar DisttMandi - Secondary Wastewater Treatment Plant in Mandi, Himachal Pradesh

STP Khaliar DisttMandi is a municipal wastewater treatment facility located in Mandi, Himachal Pradesh, India. The plant serves a population of 3,140 and operates at a designed capacity of 470 m³/day, reflecting its role in managing domestic wastewater for this small urban community. The plant provides secondary treatment, which is the standard biological treatment stage that removes organic matter and suspended solids. Under India's environmental regulations, smaller agglomerations like this are expected to meet secondary treatment standards before discharge, aligning with the country's Water (Prevention and Control of Pollution) Act, 1974. The treated effluent is discharged into local streams that eventually drain into the Beas River, a major tributary of the Indus River system. The Beas River supports diverse aquatic life and is an important water resource for irrigation and drinking water in the region. The plant's operation helps protect downstream water quality in the Beas basin.

The plant discharges into local watercourses that flow into the Beas River, which originates in the Himalayas and joins the Sutlej River in Punjab. The Beas River is a vital freshwater resource supporting agriculture, fisheries, and biodiversity in Himachal Pradesh and Punjab. Its downstream reaches are ecologically sensitive, hosting migratory fish species and providing habitat for aquatic flora and fauna.