STP Santokhgarh Distt Una zone II - Wastewater Treatment Plant in Santokhgarh, Himachal Pradesh

STP Santokhgarh Distt Una zone II is a wastewater treatment plant located in Santokhgarh, a town in the Una district of Himachal Pradesh, India. The plant was designed to serve a population of 11,024, placing it in the small-to-medium agglomeration category. In India, wastewater treatment plants are regulated under the Water (Prevention and Control of Pollution) Act, 1974, and the Environment Protection Act, 1986. The Central Pollution Control Board (CPCB) and state pollution control boards set discharge standards. For plants serving populations around 10,000, secondary treatment is typically required to meet effluent standards before discharge into water bodies. The plant is located inland, more than 50 km from the coast. The area drains into the Sutlej River basin, which flows through Himachal Pradesh and Punjab before entering Pakistan. The Sutlej River is a major tributary of the Indus River system, supporting agriculture and ecosystems downstream.

The plant is situated in the Sutlej River basin, which ultimately drains into the Indus River and the Arabian Sea. The Sutlej River supports diverse aquatic life and provides water for irrigation in the region. Downstream ecosystems include wetlands and agricultural areas that depend on water quality. Proper treatment of wastewater is essential to prevent pollution and protect these ecological resources.