SFPUC 2001 Alameda Watershed Management Plan

II. PROJECT DESCRIPTION6.0 PHASING AND IMPLEMENTATIONThe Alameda Watershed Management Plan would be implemented over a 20-year period afteradoption of the Management Plan. The intention of the SFPUC is to review and update theManagement Plan periodically, as needed, with a complete review and update required at the endof the 20-year period. The goals and policies are intended to be fixed, while the managementactions are intended to be updated and revised as necessary. Within the Management Plan, thesemanagement action phases are identified by one or more of the following categories:(1) within 5 years of Management Plan adoption;(2) within 10 years of Management Plan adoption;(3) within 20 years of Management Plan adoption;(A) on an as-needed basis; and(B) at regular intervals throughout the life of the Management Plan.Some management actions have been assigned two phasing types. Usually these are actions thatrequire implementation sometime in the near future (Phase 1) and then require updating either asnecessary or at regular intervals. Some management actions are ranked solely as (A), and theseare generally intended to be conducted prior to any new construction activities either within oradjacent to the Watershed.In general, phasing priorities are related to the ability of an action to help achieve theManagement Plan’s primary goal – maintaining and improving source water quality. Actions thatare most critical to meeting this goal are assigned to Phase 1. Phase 2 actions are also integral tomaintaining and improving water quality but may have a less far-reaching effect. Phase 3 taskswould either achieve other Watershed management goals or are actions that are not likely tooccur for at least 10 years. Table II-1 indicates the phasing assigned to each of the managementactions.B. MANAGEMENT PLAN BACKGROUND1.0 WATER SYSTEM OVERVIEWThe SFPUC’s water system is located in central California and encompasses watersheds in theSan Francisco Bay Area and the Sierra Nevada mountains (see Figure II-4). The SFPUC’sservice area includes 2.4 million customers located in San Francisco and in portions of SanMateo, Santa Clara, and Alameda Counties. An overview of the San Francisco portion of thewater system and the Alameda Watershed is provided below. A more detailed description of thecomponents of the San Francisco portion of the water system and SFPUC departments isprovided in Section III.K, Utilities and Public Services.The SFPUC water system obtains water from three sources: (1) Tuolumne River via the HetchHetchy Water and Power system in the Sierra Nevada mountains; (2) local runoff in theCalaveras Reservoir and San Antonio Reservoir Watersheds in the greater Alameda Creekwatershed; and (3) local runoff in the Crystal Springs, San Andreas, and Pilarcitos Reservoirwatersheds within the greater Peninsula Watershed.NOP 96.223E: Alameda Watershed Management Plan II-17 ESA / 930385January 2001