OMWD is a public agency providing water, wastewater services, recycled water, hydroelectricity, and operation of Elfin Forest Recreational Reserve. German settlers began the community that is OMWD's namesake in 1884; the name is of German origin meaning “olive grove.” The gradual decline of farming activity during the 1950s and the importation of water to Southern California slowly transformed the Olivenhain area into a residential community. OMWD was incorporated on April 9, 1959, to develop an adequate water supply for area landowners and residents. Today, OMWD is over 48 square miles, and serves approximately 86,000 customers in Encinitas, Carlsbad, San Diego, San Marcos, Solana Beach, and neighboring communities. OMWD's David C. McCollom Water Treatment Plant treats up to 34 million gallons of water per day that is delivered to homes and businesses, and our 4S Ranch Water Reclamation Facility produces up to 2 million gallons per day of recycled water for landscape irrigation.
OMWD group photo 2019
Water Reclamation Facility public tour
pump & motor maintenance
OMWD Park Rangers training with first responders