US-ENVIRONMENT-WATER-CONSERVATION-DROUGHT

Workers begin maintenance and repairs at the South Pasadena High School swimming pool on May 16, 2015 in South Pasadena, California. The pool must be emptied and in an effort to reuse as much water as possible - with the chlorine counteracted - the potable water, recommended for gardening only and not human consumption, is on offer to the public who bring their own containers to collect water. As California endures its fourth year of drought, some cities and water districts across the state have implemented restrictions on swimming pools, from moratoriums on swimming pool construction to restrctions on filling and draining pools. AFP PHOTO / FREDERIC J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP via Getty Images)