High ammonia levels in Yamuna river threaten New Delhi's water supply

New Delhi's water supply is at risk due to high ammonia levels in the Yamuna river, reaching 5 parts per million. This has reduced production at the Wazirabad water treatment plant by 25-50%, affecting several areas in the city. Areas likely to experience water supply disruptions include Defence Colony, CGO Complex, and parts of north and central Delhi. Some neighborhoods have already reported low to no water supply since Friday night. This is the second ammonia spike in December, following a similar incident on December 2. The Wazirabad plant, which has a capacity of 131 million gallons per day, is currently producing only 98.25 million gallons due to the contamination.