The East County Advanced Water Purification Program is a collaborative effort between Padre Dam Municipal Water District, the City of El Cajon, the County of San Diego and Helix Water District. It will create a new, local, sustainable and drought proof drinking water supply using state-of-the-art technology to purify East County's recycled water. This water recycling opportunity will diversify East County's water supply, reduce our dependence on imported water and produce up to 30 percent of East County's current drinking water needs. View an informative video about the program.