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, , .\, I 34 r. -'S5METROPOLITAN WATEK DISTRICT .J .. Department of Water and Power; and the Brooklyn Street connec- tion for Los Angeles was supplied from storage in upper feeder tunnels. Other agencies were supplied from storage in Palos Verdes and Orange County reservoirs or from their own local sources. Shutdown of the Orange County feeder was necessary on Jan- uary 15, 1952 in order to make repairs at a leak in the iJ6-inch pipe line one and one-half miles south of the softening plant. A 3-foot collar was placed around the outside of the pipe to complete the repairs. Other shutdowns were necessary to provide connections for the Pomona Valley Municipal Water District at Diamond Bar Ranch and for the City of Santa Ana at Delhi Road and Bristol Street. During the latter shutdown additional regulating valves were installed in the pressure regulating structure at Willits Street in Santa Ana. Shutdown of the Long Beach lateral was necessary three different times in order to remove the mainline venturi tube at the Los Angeles River freeway crossing of the lateral and replace it with a 22-foot section of steel pipe, reinstall the venturi tube at a point farther west in the lateral, and to provide a connection for the West Basin Municipal Water District in 223rd Street near Ala- meda Street, During the year District forces constructed three relief oper- alors' cottages at San Jacinto, Orange County and Corona del Mar reservoirs, and converted an existing 12-foot by 34-foot building at Garvey reservoir site into a soil-testing laboratory. Several minor alterations to District facilities were required because of street im- provemenY work over pipe lines. At Morris Dam District forces installed a multi-conductor overhead cable to provide for remote recording of flows and water levels, and the operation from Morris Dam of a control gate at the San Gabriel River crossing structure of the upper feeder. A portion of the Orange County feeder was encased by the District at the crossing of the Santa Ana freeway under construction by the State Division of Highways, Opr,ratioll of cittllS (lnd 1.(J(tlnu-t yrovcs The District owns 62 acres of citrus and 22 acres of walnut groves near La Verne, on which future softening and filtration plant facilities will be constructed. These groves are being operated by the District until the time when the trees must be removed to make way for future plant expansion. Normal operation includes cultivation, weed control, irrigating, fertilizing, pruning, spraying and dusting. The quick decline disease which affects orange trees on sour orange roolstocks became a serious problem in one section of the