Do whatever you can to stop this from happening please! Do your bit by fixing leaking taps and making sure all taps are shut after you are done, take shorter showers and save water whilst soaping, try and not use water for wasteful activities, shut the tap whilst brushing etc.
If you are interested in helping monetarily try the Naam Foundation at http://naammh.org/
or our friends at No Nasties who make organic cotton clothing and help farmers in the drought hit region of Maharashtra. They also create cute cotton accessories from textile waste made by widows of cotton farmers under the brand name Once Upon A Doug.
Please help out however you can!