Mothorowala Wastewater Treatment Plant, Dehradun, Uttarakhand

Mothorowala is a proposed wastewater treatment plant located in Dehradun, the capital city of Uttarakhand, India. Designed to serve a population of 133,624, it will address the growing wastewater management needs of this rapidly urbanizing Himalayan foothill city. The plant is part of India's broader efforts to improve sanitation under the National Mission for Clean Ganga and other urban infrastructure programs. As a proposed facility, specific treatment processes and capacity details are not yet finalized. However, for an agglomeration of this scale, Indian regulations typically require secondary treatment as a minimum, with tertiary treatment recommended for water reuse or discharge into sensitive water bodies. The plant will likely incorporate technologies compliant with the Central Pollution Control Board (CPCB) standards. The treated effluent from Mothorowala is expected to be discharged into a local tributary of the Ganga River system, which ultimately drains into the Bay of Bengal. The region's ecology is sensitive due to its proximity to the Himalayan ecosystem, and proper treatment will help protect downstream aquatic life and reduce pollution in the Ganga basin.

The plant will discharge into a tributary of the Ganga River system, which flows through the Indo-Gangetic Plain and empties into the Bay of Bengal. The Himalayan foothill location makes the watershed ecologically sensitive, supporting diverse aquatic species and providing water for irrigation and drinking. Effective treatment is critical to prevent nutrient loading and contamination that could harm downstream ecosystems and communities.