Best Water/Environment Project: Robert B. Diemer Oxidation Retrofit Project, Yorba Linda
As one of the largest sewage treatment plants in the U.S., the Robert B. Diemer facility delivers 520 million gallons of water per day to Orange and Los Angeles counties, or enough water to fill the Rose Bowl every four hours. This $205-million project is an upgrade and modification of the existing plant to treat potable water with ozone in lieu of chlorine to better meet water quality standards.