MWDOC is a third-largest member agency of the Metropolitan Water District of Southern California (Metropolitan) and the largest purchaser of treated drinking water. MWDOC provides and manages imported water supplies used in Orange County, with the exception of the cities of Anaheim, Fullerton, and Santa Ana. As the wholesale agency for 28 cities and water agencies within Orange County, MWDOC is required by the State Board to assist our retail agencies meet the State Board’s self-certification process by providing data and information on the imported water supplies that we project to deliver to them.
To determine MWDOC’s expected imported supply need over the next three years, MWDOC coordinated with each retail agency in assessing their local and imported supply needs for the stress test period. These estimates were prepared in coordination with both our retail member agencies (e.g. urban water suppliers) and Metropolitan. Additional wholesale information required by many of our member agencies for the groundwater supply is being provided by Orange County Water District (OCWD).
Below is a summary of the total imported supplies requested by MWDOC’s 28 member agencies over the next three years as part of this process: