STP Dehra Wastewater Treatment Plant, Bodarballa, Himachal Pradesh

STP Dehra is a municipal wastewater treatment plant located in Bodarballa, within the Kangra district of Himachal Pradesh, India. The facility was designed to serve a population of 9,220, placing it in the small-to-medium agglomeration category typical of towns in the Himalayan foothills. The plant is currently non-operational, which may reflect infrastructure challenges common in hilly terrains. As a plant in India, STP Dehra would have been subject to the national environmental regulations under the Water (Prevention and Control of Pollution) Act, 1974, and the Central Pollution Control Board (CPCB) guidelines. For agglomerations of this size, secondary treatment is typically mandated, often through technologies like activated sludge or sequencing batch reactors. Standard practices for similar facilities in Himachal Pradesh involve biological treatment followed by disinfection. The treated wastewater from STP Dehra would have discharged into local streams that eventually feed into the Beas River, a major tributary of the Indus River system. The Beas River supports diverse aquatic life and is an important water source for irrigation and drinking in the region. The plant's non-operational status raises concerns about untreated sewage entering these water bodies, potentially affecting downstream ecosystems and communities.

STP Dehra is located in the Beas River basin, which drains from the Himalayas into the Indus River and ultimately the Arabian Sea. The Beas River supports a rich biodiversity, including several fish species and migratory birds. The plant's non-operational status may contribute to untreated wastewater entering local streams, impacting water quality and aquatic habitats in this ecologically sensitive foothill region.