Water supply: Newspaper reports, quoting KMC officials, say that in 2013 water demand from KMC was 290 million gallons per day and on an average, it supplied 300 mgd. 94 per cent of the city is supplied piped water, almost all of it free. The city is serviced by a 5,000 km network of pipes. As per KMC, it has 5 water treatment plants at Palta, Watgunge, Jorabagan, Dhapa and Garden Reach. There are reports that officially 15% of Kolkata's core water supply comes from ground water, in reality 25–30% of water used in households is ground water.