Water Conservation Portal

Water Conservation Portal - Agricultural Water Use Exclusion Certifications

The emergency regulation adopted by the State Water Board on May 5, 2015 allows urban water suppliers to subtract water delivered for commercial agriculture from total potable water production if the supplier meets certain conditions. One of the conditions requires the supplier to certify in writing to the State Water Board that all water subtracted from total potable water production is being served for commercial agriculture use that meets the definition of Government Code section 51201, subdivision (b). The following table provides certifications received by the State Water Board from urban water suppliers choosing to exclude commercial agricultural water.


Camrosa Water District Tony Stafford
Camarillo, City of Tom Fox
Carlsbad Municipal Water District Wendy Chambers

Certification withdrawn at the request of the supplier
Carpinteria Valley Water District Charles Hamilton
Fallbrook Public Utility District Brian Brady
Oceanside, City of Jason Dafforn
Olivenhain Municipal Water District Kimberly Thorner
Poway, City of Michael Obermiller
Rainbow Municipal Water District Tom Kennedy
Rancho California Water District Justin Haessly and Jeff Armstrong
San Diego, City of Halla Razak
San Dieguito Water District William O’Donnell
Santa Fe Irrigation District Michael Bardin
Tulare, City of Joseph Carlini

Certification declined - State Water Board Response
Vallecitos Water District Dennis Lamb
Valley Center Water District Gary Arant
Ventura County Waterworks District No 1 David J. Sasek
Watsonville, City of Steve Palmisano

Excluding water delivered for commercial agriculture has the effect of reducing the volume of water that must be conserved to meet a supplier’s conservation standard. However, the supplier must still meet the percent conservation requirement for all other potable water produced. See more information about the agricultural water use exclusion.

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