STP Theog - Wastewater Treatment Plant in Jatain, Himachal Pradesh

STP Theog is a wastewater treatment plant situated in Jatain, a locality within the Theog tehsil of Shimla district, Himachal Pradesh, India. The plant was designed to serve a population of 7,229, 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. For plants serving populations of this scale, secondary treatment is typically required to meet effluent standards set by the Central Pollution Control Board (CPCB). The plant is located inland, far from the coast, and its discharge would likely affect local streams that drain into the Giri River, a tributary of the Yamuna River. The Yamuna eventually flows into the Ganges, a major river system supporting diverse aquatic life and providing water for millions. The plant's operation is important for protecting local water quality in the Himalayan foothills.

STP Theog is located in the Himalayan foothills, where local streams drain into the Giri River, a tributary of the Yamuna River. The Yamuna flows through the Indo-Gangetic Plain and joins the Ganges, which ultimately reaches the Bay of Bengal. This watershed supports diverse aquatic ecosystems and provides water for agriculture and drinking. The plant's non-operational status poses a risk of untreated wastewater entering these water bodies, potentially affecting downstream communities and biodiversity.