 Drinking water for Mysore is sourced from the Kaveri and Kabini rivers. The city got its first piped water supply when the Belagola project was commissioned in 1896. As of 2011, Mysore gets 42.5 million gallons water per day. Mysore sometimes faces water crises, mainly during the summer months (March – June) and in years of low rainfall. The city has had an underground drainage system since 1904. The entire sewage from the city drains into four valleys: Kesare, Malalavadi, Dalavai and Belavatha. In an exercise carried out by the Urban Development Ministry under the national urban sanitation policy, Mysore was rated the second cleanest city in India in 2010 and the cleanest in Karnataka.
