STP Kondli New Phase IV - Major Wastewater Treatment Plant in East Delhi, India

STP Kondli New Phase IV is a major wastewater treatment facility located in Mayur Vihar III, East Delhi, India. Serving a population of over 1.35 million, it is one of the key plants addressing the sanitation needs of the densely populated national capital region. The plant is operational and forms part of Delhi's extensive sewage treatment infrastructure. As a large-scale treatment plant serving more than 100,000 people, it falls under India's regulatory framework for sewage treatment, which mandates appropriate treatment levels to protect public health and the environment. Plants of this scale in India typically employ secondary or advanced treatment technologies to meet effluent standards set by the Central Pollution Control Board (CPCB). The plant's capacity and discharge volume are managed to handle the significant load from the surrounding urban area. The treated effluent from STP Kondli New Phase IV is discharged into local water bodies that ultimately drain into the Yamuna River, a major tributary of the Ganges. The Yamuna River downstream of Delhi receives substantial treated and untreated wastewater, making the plant's performance crucial for improving water quality in the river and reducing pollution loads in the Ganges basin. The plant contributes to the ecological health of the region by mitigating the impact of urban wastewater on the river system.

The plant discharges into the Yamuna River basin, which flows through Delhi and eventually joins the Ganges River. The Yamuna downstream of Delhi is heavily impacted by urban runoff and wastewater, making treatment plants like STP Kondli critical for reducing organic and nutrient pollution. The river supports diverse aquatic life and is used for irrigation and drinking water supply downstream, highlighting the importance of effective wastewater management in this densely populated region.