Kaulagarh Wastewater Treatment Plant, Dehradun, Uttarakhand

Kaulagarh is a proposed wastewater treatment plant located in Dehradun, the capital city of Uttarakhand, India. The plant is planned to serve a population of 20,044, addressing the growing sanitation needs of this Himalayan foothill city. As a proposed facility, the specific treatment process and capacity details are not yet finalized. In India, wastewater treatment plants of this scale typically operate under the National River Conservation Plan and state pollution control board regulations, which mandate secondary treatment as a minimum standard for municipal wastewater. The plant's treated effluent is expected to be discharged into a local watercourse that ultimately drains into the Ganges River basin. This region is ecologically sensitive due to its proximity to the Himalayas and the importance of the Ganges for water supply and biodiversity.

The plant is situated in Dehradun, within the Doon Valley, which drains into the Ganges River via the Song and Suswa rivers. The Ganges is a major river system supporting diverse aquatic life and providing water for millions of people. The proposed plant will help reduce untreated sewage entering these waterways, protecting downstream ecosystems and public health.