To submit a comment or question or to provide website feedback, fill out the form below. A representative from the Water Authority will return your inquiry within two to three business days. If your issue is timely and needs an immediate response, please call the Water Authority office at (858) 522-6600.

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Carlsbad Seawater Desalination Plant Tours:
To contact someone about touring the Carlsbad plant, click here.
San Diego County Water Authority
4677 Overland Avenue
San Diego, CA 92123
(858) 522-6600
Fax: (858) 522-6568


Office Hours:

Monday through Thursday, 7:30 a.m. to 5:30 p.m.
and every other Friday, 8 a.m. to 5 p.m.
(Offices are closed alternating Fridays)

Water Authority After-Hours Emergencies:
(760) 480-1991