Yamuna Suffers Severe Pollution in Delhi as Untreated Waste Flow

New Delhi: The Yamuna River, flowing through the National Capital Territory, continues to face high levels of pollution despite ongoing cleanup efforts by authorities and judicial interventions. 

Official reports indicate that untreated or partially treated sewage and industrial effluent remain major contributors to the river’s deteriorating water quality.

Government and regulatory data show that faecal coliform levels at several monitoring points in Delhi, including Palla, Wazirabad, ISBT Bridge, ITO Bridge, and Nizamuddin Bridge, remain significantly above permissible limits, indicating the persistent discharge of untreated sewage. 

The Delhi Pollution Control Committee’s monthly water quality reports further reveal that pollution levels have spiked in recent months, while activists have flagged that updated reports have not been made publicly available since early 2026, limiting transparency.

Industrial discharge has also continued to impact the Yamuna. DPCC reports indicate that the existing Common Effluent Treatment Plants (CETPs) serving Delhi’s industrial clusters are operating below capacity, and untreated effluent is flowing into stormwater drains that eventually empty into the river. 

Independent assessments commissioned by the Delhi High Court highlighted deficiencies in the operation of CETPs, noting malfunctioning meters and inadequate monitoring, which allow untreated or poorly treated industrial wastewater to enter the Yamuna. 

National Green Tribunal proceedings have compelled the Delhi Jal Board to install flow‑measurement systems on key drains to better quantify pollution and improve treatment infrastructure.

Amid these environmental challenges, AAP leader Saurabh Bharadwaj has publicly alleged that all CETPs in Delhi are privately controlled by Industrial Area Associations, which he claims extort plot owners for money and fail to maintain treatment plants. 

He stated that untreated industrial waste flows directly into the Yamuna, causing immense pollution. Bharadwaj further alleged that his efforts to transfer all CETPs to government control, aimed at upgrading and properly maintaining them, were blocked by the Lieutenant Governor’s office, Chief Secretary Naresh Kumar, and the DJB’s leadership, whom he accused of protecting private associations. These allegations have not been independently verified or substantiated by official investigations.

Government officials have maintained that pollution control efforts are ongoing, including upgrading sewage treatment plants, enhancing infrastructure, and strengthening regulatory oversight. 

The DJB has informed the NGT that flow‑measurement systems are being installed in drains feeding the Yamuna to improve monitoring and planning for wastewater treatment. Authorities argue that delays and challenges in reducing pollution levels are systemic and infrastructure-related, rather than the result of intentional obstruction.

Despite the political controversy, the Yamuna continues to be heavily polluted. Repeated observations of toxic froth, high ammonia levels, and elevated faecal bacteria along the river indicate that both untreated sewage and industrial effluents remain significant contributors. 

Judicial committees and environmental experts have emphasised the need for systemic reforms to improve wastewater treatment, enforce compliance, and reduce the toxic load entering the river. While Saurabh Bharadwaj’s allegations have added a political dimension to the discussion, the fundamental environmental challenge of restoring the Yamuna remains urgent and ongoing.