SFPUC 2001 Alameda Watershed Management Plan

III. ENVIRONMENTAL SETTING AND IMPACTSK. UTILITIES AND PUBLIC SERVICESMeters on each pipeline west of the Irvington Portal and east of the Pulgas Tunnel enable theoperators at the Sunol Valley WTP to react to system demands along the Bay Division Pipelines.The Bay Division Pipelines join at the Pulgas Tunnel.Treatment FacilitiesSince water from the Alameda Watershed reservoirs must be filtered (see below) beforeaugmenting the Hetch Hetchty water supply, SFPUC constructed filtration facilities to providefor turbidity removal, disinfection, and corrosion control. Hetch Hetchy water is not filtered, butthe water is treated at several points along the aqueduct for disinfection and corrosion controlpurposes.Sunol Water Treatment PlantThe Sunol Valley WTP provides conventional treatment of local runoff stored in Calaveras andSan Antonio Reservoirs. As discussed previously, the Calaveras and San Antonio Pipelines areused to transport water from the two reservoirs to the Sunol Valley WTP. Hetch Hetchy watercan also be treated at this plant, if necessary. Hetch Hetchy water needs filtration only duringtimes of turbid water, usually in winter months. The Sunol Valley WTP can treat up to 160 mgdof water.Description of SFPUC FunctionsThe SFPUC has five commissioners who are responsible for 13 divisions; these divisions makeup the overall management organization for water and wastewater for the City of San Francisco.This section provides a brief overview of the primary SFPUC divisions that are responsible forwater quality and water supply.Water Supply and Treatment DivisionThe Water Supply and Treatment Division manages the water system from the Alameda EastPortal downstream to the San Francisco line. This Division is further divided into the followingfunctional groups: Millbrae Administration, Maintenance Engineering, Operations andMaintenance, Systems Operations, and the Land and Resource Management Section. The Landand Resource Management Section oversees Watershed management on lands within the BayArea. This section includes Watershed keepers whose duties are patrolling for securityproblems, performing reservoir water level readings, and maintaining ongoing relations with theCounty Departments, the California Department of Forestry and Fire Protection, and recreationdistricts. They are also responsible for specific technical studies, such as hydrological studies,and for overseeing special projects related to land use activities within the Peninsula andAlameda Watersheds. This group coordinates specific tasks with the Water Quality Bureau(parallel to the Water Supply and Treatment Division), such as developing water qualitymonitoring programs and addressing hazardous materials issues.Watershed policy and project plans are also developed by the Land and Resource ManagementSection. Watershed protection, operations, maintenance, restoration, improvement, andNOP 96.223E: Alameda Watershed Management Plan III.K-4 ESA / 930385January 2001