Delhi: Water supply will remain suspended for 8 hours in some areas. details here

The Delhi Jal Board (DJB) has issued an advisory saying water supply will remain affected for 8 hours in parts of the national capital on Wednesday and Thursday due to “heavy leakage” at the water pump house of Sonia Vihar WTP.

“The shutdown period will be from 4:30 pm (02.02.2022) to 12:30 pm (03.02.022) ie 08 hours,” DJB said on Wednesday.

The affected areas are – North East Delhi, part of South Delhi, part of NDMC area, and Malviya Nagar PPP areas like Saket, Pushp Vihar, Katwaria Sarai, Lado Sarai, Khirki, Sonia Vihar, Karawai Nagar, Tahirpur, Dilshad Garden, Nandnagri, Kailash Nagar, Yamuna Vihar, Karawal Nagar, Lalita Park, Seelampur, Shastri Park, Usmanpur, Bhrampuri, Gandhi Nagar, Sarai Kale Khan, Siddharth Enclave, Okhla, Kalkaji, Batla House Extension, Kalandi Colony, Badarpur, Apollo, Sarita Vihar, Vasant Kunj , Mehrauli, Greater Kailash, Srinivaspuri, South Extension, Lajpat Nagar, Jal Vihar, Lodhi Road, Kaka Nagar and surrounding areas.

Last month, the DJB had said that production at Wazirabad, Chandrawal and Okhla water treatment plants has come down by 50% due to high ammonia levels in the Yamuna due to discharge of pollutants from Haryana.

The WTPs in Chandrawal, Wazirabad and Okhla can treat 90 million gallons of water per day, 135 MGD and 20 MGD respectively.

At present the level of ammonia in Wazirabad pond is 5 parts per million.

According to the Bureau of Indian Standards, the permissible maximum limit of ammonia in drinking water is 0.5 ppm. At present, the capacity of Delhi Jal Board is to treat 0.9 ppm.

The DJB had said, “Due to the discharge of persistently high level of pollutants from Haryana, the ammonia level in Yamuna river at Wazirabad barrage has increased and water production from water treatment plants at Wazirabad, Chandrawal and Okhla has decreased.”

An official said that the treatment capacity in three WTPs has reduced by 50%.

“Water supply will remain affected till the morning of January 13 and till the level of ammonia in the river reduces to treatable limits,” it said.