WSP04825 - Laserfiche WebLink

Home Browse Search

, "'6') , '. _0 I.:' 6 METROPOLITAN WATER DISTRICT First development stage In this initial construction phase of the project, certain features have been built to full capacity, certain others to half capacity, and the remainder to less than half capacity. The term "full capacity" customarily refers to the District's filing on 1,500 cubic feet per second of'Colorado River water. To accom- piish deiivery of this quantity, in the ultimate development of the project, the designed full capacity of main aqueduct features is 1,605 cubic feet per second, in order to allow for operating outages aggregating 7 per cent of the iime. The pumping plants, each with nine units of 200 cubic feet per second, will have one spare in the ultimate development. Features which have been initially constructed to full size are the pumping piant substructures and foundations, the main aque- duct tunneis, the cut-and-cover conduits, the canals, and 23 per cent of the total length of inverted siphons. Built to half size are the superstructures of the pumping plants and 77 pel' cent of the total length of inverted siphons on the main aqueduct. On the distri- bution system, the Lake Mathews reservoir has been constructed to approximately half its ultimate storage capacity, and the upper feeder is designcd to transport as far as San Dimas a flow of 750 cubic feet per second, or haif the main aqueduct capacity. Fea- tures having less than half the ultimate capacity are the pump installations, with three pumps presently installed in each plant to deliver 600 cubic feet per second to Lake Mathews; the distribution sysiem west of San Dimas; and the water softening and filtration plant, initially built to soften 155 cubic feet per second. Construction and operation During the past year the Santa Monica feeder extending through Giendale, Burbank, Hollywood, Beverly Hills, and West Los An- geles, work on which was initiated prior to July I, 1940, has been completed. The Orange County feeder is virtually completed from the upper feeder at La Verne to Fullerton, Anaheim, and Santa Ana. The water softening and filtration plant was finished and is being operated through a try-out period, and the Orange County reservoir is nearing completion. Laieral pipe lines were extended to selected points on the water systems of Burbank, Compton, Long Beach, and Torrance. Delivery of softened and filiered Colorado River water was first made to Pasadena on June 17, to Santa Monica on June 19, Los