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J '-, r r Q """,,VO OPEHATION AND MAINTENANCE 47 Water Company for use in areas served by the company within the city, The total of unsoftcned water sales for the fiscal year increased 6 pel' cent over the previous year, and the total of all sales was 17 per cent more than the amount recorded in 1950-5l. The District continued to supply natural Colorado River water from the distrihution system head works near Lake Mathews to the U. S. Army for use at Camp Haan and March Ail' Force Base, A total of 1,013.7 acre-feet of water was delivered during the past fiscal year through the government-owned 12-mile pipe line. First delivery of water to Eastern Municipal Water District waS made June 23, 1952 to the Brownlands area through a temporary connection on the main aqueduct. Delivery of unsoftened water was continued to the San Diego County Water Authority at full capacity of the San Diego aqueduct, 106 cubic feet pe,' second, until January 1952, at which time the flow was reduced due to heavy rains which replenished storage in San Diego County reservoirs. Average flow for the year to the San Diego aqueduct was 86.3 cubic feet pel' second. A total of 39,177.4 acre-feet of surplus unsoftened Colorado River water was released into the Santa Ana River channel at the river ; crossing of the upper feeder for use in the area of the Orange County Municipal \Vater District. Delivery of 25,000 acre-feet was made to I the Orange County Flood Control District and 14,177.4 to the Orange County Water District, all at a cost of $10 per acre-foot due to annexation of the Orange Count~. Municipal Water District in No- vember 1951. To date 84,086.1 acre-feet of water have been deliv- ered under agreements with the Flood Control District and the ~ wa~~a~~~~~~1~f C~l;;;:;;do Rlv~':-;ater-dehvered slllceilie be;;nnin~-- . of operations in 1941 are shown in table 11. Included in the totals is all water sold in addition to that released into the San Gabriel River channel in exchange for water retained in Morris reservoir and that u,ed for irrigating the District-owned citrus and walnut groves at the softening and filtration plant near La Verne. j i ~, I' , I \ lrater prodJlcfio-n of COllslituCllt al'tas The average annual rate of water production of the component areas of the District year by year for the past 15 years is given in table 12. Three municipal water districts were annexed during the fiscal year: Chino Basin, Eastern and Orange County, increasing the total area of Metropolitan to 1,554.89 square miles.