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Many parts of the city continue to experience water shortages due to both maintenance works as well as low water levels in the Yamuna.
Water supply was affected in parts of South Delhi on Monday and will be available only at low pressure on Tuesday morning.
An advisory issued by the Delhi Jal Board (DJB) attributed the situation to ongoing maintenance work at the Sonia Vihar water treatment plant. While supply was hit from 10am on Monday, it is likely to be available at low pressure only on Tuesday morning.
The affected areas are: Malviya Nagar, Geetanjali Enclave, Sarai Kale Khan, Amar Colony, Lajpat Nagar, Greater Kailash, Vasant Kunj, Okhla, Kalkaji, Panchsheel Park, Sarita Vihar, Shahpur Jat, Chhatarpur, Govindpuri and parts of the New Delhi Municipal Council Area.
Meanwhile, water levels in the Yamuna in Wazirabad have not improved, resulting in lower than normal production at the Wazirabad water treatment plant, which relies on water from the river. The water level in the Wazirabad pond has been below normal for about two weeks now. The level on Monday night was 671.4 ft against the normal of 674.5 ft and lower than the 671.7 ft recorded a week ago on March 6.
Production at the Wazirabad plant on Monday was 73 MGD (million gallons per day), well below the normal production of around 134.5 MGD. This is also 10 MGD less than the 83 MGD of water that the plant was able to produce about a week ago.
DJB officials have also attributed the low level of production to high ammonia levels in the raw water that the DJB’s water treatment plants are unable to process. On Monday, for example, the ammonia level in Wazirabad was 3.2 ppm (parts per million), higher than the 1 ppm that the water treatment plants can process.
The areas hit due to low production at Wazirabad and Chandrawal water treatment plants include parts of New Delhi Municipal Council area, parts of Cantonment area and parts of North, Central and South Delhi including Jahangirpuri, Greater Kailash, Burari, South. Extension, Moolchand, Gulabi Bagh, Punjabi Bagh, Sangam Vihar, Tughlaqabad, Karol Bagh, Shakti Nagar, Paharganj, Patel Nagar East and West, Rajinder Nagar Old and New, Model Town and Subhash Park.
Most parts of northwest India have seen major deficits in rainfall so far this month, while the entire region recorded a major deficit in February as well. With a western disturbance affecting parts of northwest India from Monday, rain is expected over the Western Himalayan Region over the next two days. With another western disturbance likely to affect this region from March 16 onwards, rainfall is also likely in Delhi from March 17 to 19.