SFPUC - Annual Reports Sustaining What Matters | Page 6

05 Annual Report for the Fiscal Year Ended June 30, 2014 Planning for the Future Successfully delivering water during the drought is a culmination of years of planning and infrastructure investment. Water Supply Planning The Hetch Hetchy Regional Water System relies on snow and precipitation in our watersheds to supply water to our customers. In times of drought, we efficiently manage our reservoirs, deliveries, and hydroelectric generation to maximize carryover water storage into the comi