Water in Chennai is not available to and affordable by all. Availability of a good, regular water supply is proportionate to the level of income one earns, in this city. Senior government officials in areas like Anna Nagar can get a whole water tanker arranged for themselves; most areas like Mylapore get water once in two days; in Madipakkam, people buy bottled water for drinking purposes but the situation is the worst in slums. Here, water supply runs for barely an hour everyday from a single tap serving over thirty families for all their water needs.