A tractor collects golf balls on a driving range in the Palm Springs area, California April 13, 2015. The average daily water usage per person in Palm Springs is 201 gallons, more than double the California average. California's cities and towns would be required to cut their water usage by up to 35 percent or face steep fines under proposed new rules, the state's first-ever mandatory cutbacks in urban water use as the state enters its fourth year of severe drought. Communities where residential customers use more than 165 gallons of water per person per day would have to cut back by 35 percent. Picture taken April 13, 2015. REUTERS/Lucy Nicholson TPX IMAGES OF THE DAY FOR BEST QUALITY IMAGE ALSO SEE: GM1EB5D0S6I01