The San Dieguito Water District and Santa Fe Irrigation District jointly own and operate the R.E. Badger Filtration Plant. The R.E. Badger Filtration Plant (REB Plant) is a conventional water treatment plant utilizing flocculation/coagulation, sedimentation and filtration to take imported and local surface water sources and treat them for potable use. The REB Plant can treat raw water from Lake Hodges, the San Dieguito Reservoir, or the San Diego County Water Authority.
The plant was constructed in 1970 and major upgrades were completed in 1993. The REB Plant has the capacity to treat up to 40 million gallons a day, and during a typical year, treats over 7 billion gallons of potable water.
The REB Plant is one of seven conventional water treatment plants in San Diego County. The Santa Fe Irrigation District has ownership of 55% of the REB Plant and manages the treatment and conveyance facilities for both SFID and the San Dieguito Water District, who has 45% ownership.