In addition to Diamond Valley, Lake Mathews and Lake Skinner, Metropolitan also owns and operates six smaller reservoirs that, combined, hold approximately 32,000 acre-feet of water. These reservoirs are located in Los Angeles, Orange and San Bernardino counties.
Copper Basin: The reservoir's capacity is 22,000 acre-feet with the dam located in San Bernardino County west of the Colorado River from Parker, Arizona. It is 184-feet high and 265-feet long.
Gene Wash: The reservoir's capacity is 6,300 acre-feet. The dam is located in San Bernardino County west of the Colorado River from Parker, Arizona. It is 140-feet high and 383-feet long.
Live Oak: The reservoir's capacity is 2,500 acre-feet. The dam is located in Los Angeles County. It is 105-feet high and 3,000-feet long.
Palos Verdes: The reservoir is located in Los Angeles County with a capacity of 740 acre-feet. It was completed in 1939. The dam is 83-feet high and 2,150-feet long.
Orange County: The reservoir is located in the city of Brea. It was completed in 1941 and has a capacity of 217 acre-feet. The dam is 103-feet high and 655-feet long.
Garvey Reservoir: The reservoir is located in Monterey Park and has a capacity of 1,600 acre-feet. The dam height is 160 feet and the crest length is 5,164.