The Cantonments Act,2006
Section 186. Maintenance of water- supply
(1) In every cantonment where a sufficient supply of potable water for domestic use does not exist, the Board shall provide or arrange for the provision of such a supply.
(2) The Board shall, as far as possible, make adequate provision that such supply shall be continuous throughout the year, and that the water shall be at all times fit for human consumption.
(3) It shall be the duty of every Board to practise and propagate the scientific methods of water harvesting including harvesting of rain water for use and make arrangement for recharging the sources of ground water including underground aquifers and to preserve rivers, streams, springs and other natural sources of water within and in the vicinity of the cantonment.