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Vlq DRAFT URBAN WATER MANAGEMENT PLAN Figure 2.1 Water Supply Options W O O CD N O� O X CD 0 0 CD Q 2.1 San Francisco pUC Surface Water Redwood City currently purchases all of its potable water from the SFPUC. There are 13 metered connections to four SFPUC pipelines located in Redwood City. The SFPUC normally supplies all of its water deliveries from a combination of local Bay Area supplies and diversions from the Tuolumne River through the Hetch Hetchy Water and Power Project shown in Figure 2.2. On the San Francisco Peninsula, the SFPUC utilizes Crystal Springs Reservoirs, San Andreas Reservoir, and Pilarcitos Reservoir to capture local watershed runoff. In the Alameda Creek watershed, the SFPUC has constructed the Calaveras Reservoir and San Antonio Reservoir. In addition to using these facilities to capture runoff, they also provide storage for Hetch Hetchy diversions, and serve as an emergency water supply in the event of an interruption to Hetch Hetchy diversions. Water developed by Hetch Hetchy represents the majority of the water supply available to San Francisco. The water travels more than 160 miles, through a complex system of tunnels and pipelines that protects the water enroute to customers in the Bay Area. During drought, the water received from Hetch Hetchy can amount to over 93 percent of the total water delivered. On average, Hetch Hetchy provides about 85 percent of the water delivered by the SFPUC. 17 7 Z rn CD —s Cn C ' 2.1 San Francisco pUC Surface Water Redwood City currently purchases all of its potable water from the SFPUC. There are 13 metered connections to four SFPUC pipelines located in Redwood City. The SFPUC normally supplies all of its water deliveries from a combination of local Bay Area supplies and diversions from the Tuolumne River through the Hetch Hetchy Water and Power Project shown in Figure 2.2. On the San Francisco Peninsula, the SFPUC utilizes Crystal Springs Reservoirs, San Andreas Reservoir, and Pilarcitos Reservoir to capture local watershed runoff. In the Alameda Creek watershed, the SFPUC has constructed the Calaveras Reservoir and San Antonio Reservoir. In addition to using these facilities to capture runoff, they also provide storage for Hetch Hetchy diversions, and serve as an emergency water supply in the event of an interruption to Hetch Hetchy diversions. Water developed by Hetch Hetchy represents the majority of the water supply available to San Francisco. The water travels more than 160 miles, through a complex system of tunnels and pipelines that protects the water enroute to customers in the Bay Area. During drought, the water received from Hetch Hetchy can amount to over 93 percent of the total water delivered. On average, Hetch Hetchy provides about 85 percent of the water delivered by the SFPUC. 17