New Delhi, Jan 21: A day after high level of ammonia forced the closure of Wazirabad and Chandrawal treatment plants, partial water supply was restored from both the facilities that serve large parts of the capital, including Lutyens' zone.
Delhi Water Minister Kapil Mishra, who visited the Wazirabad plant in the morning, said, "25 per cent water supply has been restored from both the plants. It will be 100 per cent by evening."
The plants had to be shut down on the evening of January 19 as level of ammonia touched 2.6 ppm (parts per million), much higher than the safe limit of 0.02 ppm.
"Ammonia levels still at 1.5. We are checking every half- an-hour. Situation will improve in few hours from now," Mishra tweeted.
New Delhi Municipal Corporation area, North Delhi, North West Delhi, Central Delhi and parts of West and South Delhi are among the areas that did not receive treated water last evening.
The Delhi government took up the issue with Haryana authorities and sought its intervention for taking necessary steps to prevent entry of pollutants in downstream Yamuna.
Delhi Chief Secretary K K Sharma has written a letter to his Haryana counterpart apprising him of the "deteriorating" water quality. The government has also assured the Delhi Jal Board of taking "corrective measures".