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. ,,'j - ;...... t .- i.j'j.' SOUTH On May 10, 1962, Governor Edmund G. Brown dedicated the initial reaches of the South Bay Aqueduct. The Governor himself lifted a plank barrier to let the water into the aqueduct and thus initiate the first water deli\.ery of the State Water Project. The completed portion of the South Bay Aque- duct extends from a temporary intake at the Delta- Mcndota Canal in the San Joaquin Valley to Pat- terson Reservoir on the cast side of Livermore Valley and supplies water for the Alamcda County \Vater District and the Alameda County Flood Control and \Vater Conservation District, Zone 7-two of the three public agencies who have contracted for aqueduct water. The dedication marked the culmination of two and one-half years of construction work and sev- eral months of water service contract negotiations. The Alameda County Water District serves the bayshore portion of southern Alameda County. Delivery to the district on a sustained basis began June 6, 1962, following improvemcnt by the dis- trict of existing stream channels. The delivery, passing through some 27 miles of natural stream channels in addition to the completed portion of the aqueduct, provides water to lessen an over- draft of the ground water basin. The new water eventually will overcome extensive damage done the basin by intruding sea water and, it is antici- pated, will restore the basin to complete utility. Continued service from the aqueduct to the Ala- nieda County Flood Control and \Vater Conserva- tion District began on July 7, following comple- tion by the district of a water treatment plant at Patterson Reservoir. From the treatment plant, the water is delivered to Livermore Valley to provide the supplement presently required to insure con- tinued development in the area. The completed South Bay Aqucduct is sched- uled to deliver water to Airpoint Reservoir near i\'lilpitas in Santa Clara County by December 1964. 10 BAY The facilities now in operation will provide for interim delivery of water from the Delta-l\1endota Canal until water is available from the main Cali- fornia Aqueduct in 1967. These facilities consist of an interim intake canal, an interim pumping plant, and the Bethany Forebay Dam (completed i\Iarch 1961 at a cost of $1,022,000); the South Bay Pumping Plant (completed June 1962 at a cost of $869,000); and a $3,180,000 reach of aqueduct extending from the South Bay Pumping Plant through Patterson Reservoir and consisting of the Brushy Creek Pipe- line (Stage I), the Dyer Canal, the Altamont Pipe- line, the Livetmote Vallev Canal, and the reser- voir, located 4 Y, miles east of Livermore. The facilities operate in the following manner: \Vater from the Delta-l\1endota Canal, a Bureau of Reclamation feature, passes through a turnout to the interim intake canal, a two-mile-long earth canal with a capacity of 150 cubic feet a second, and thence to the interim pumping plant. The in- stalled capacity of this plant is 50 cubic feet a sec- ond with provision to enlarge the capacity to 150 cubic feet a second. This pumping plant lifts the water about 50 feet and deposits it in Bethany Forebay. The foreba)', which will become a portion of the California Aqueduct, supplies water to the South Bay Pumping Plant, presently operating with an installed capacity of 45 cubic feet per sec- ond but planned with room for the addition of pumps ro increase its capacity to 120 cubic feet per second. An adjacent pumping plant (capacity 180 cfs) will be constructed when demand for water from the aqueduct makes the addition nec- essary. The facilities thus cventually will have a joint capacity of 300 cubic feet per second. The South Bay Pumping Plant was completed in June 1962 at a contract cost of $869,000. It provides the major lift of the conveyance system, pumping water through a steel pipeline (capacity 120 cfs)