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Cross Connection


California American Water is responsible for backflow prevention for our customers in Placer and Yolo County. Customers in Sacramento should contact the Sacramento County Environmental Management Department at 916-875-8484.
For more information contact: Terry Coleman (916) 869-6094.

Certified Backflow Testers for Sacramento



Please contact our Larkfield Office at 707-542-8329 or email

Certified Backflow Testers for Larkfield


San Diego

Please contact Robert Becerra at or 619-446-5703


Please contact Shauna Raciot at or 619-446-4768

Los Angeles

Please contact Geoff Williamson at or 626-614-2531


Please contact Jack Wang at or 831-646-3269