The sewage crisis in Delhi poses a significant threat to the existence of the Yamuna River. According to the Central Pollution Control Board (CPCB), Delhi generates 792 million gallons per day (MGD) of sewage, while the city’s sewage treatment plant (STP) capacity stands at only 712 MGD. Out of this, only 604.18 MGD undergoes treatment, leaving approximately 187.82 MGD of untreated sewage flowing directly into the Yamuna.
Taking serious note of this alarming situation, the National Green Tribunal (NGT) has directed the CPCB and the Delhi Jal Board (DJB) to submit a fresh report within two weeks. The report highlights that the existing STPs in Delhi are not operating at full capacity. Only 18 STPs, with a combined capacity of 375.4 MGD, function according to prescribed standards. The remaining 22 STPs, totaling 497.16 MGD, are undergoing upgrades, while STPs with a capacity of 62.66 MGD are still in the proposal stage.
The STP capacity is expected to increase to 814 MGD by December 2024. Additionally, 40 small treatment plants with a combined capacity of 92 MGD have been planned for the Najafgarh drain.
The court found deficiencies in the performance of DJB’s STPs and in the analysis of treated waste. The NGT has instructed the CPCB and DJB to take corrective measures based on the recommendations provided to save the Yamuna.
