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Cross Connection


California American Water is responsible for backflow prevention for our customers in Placer 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 619-522-6403


Please contact Bill Weiss at or 805-498-1266 ex. 2804

Los Angeles

Please contact Geoff Williamson, Operations Specialist: or 626-614-2531


Please contact Nina Miller, Water Quality and Environmental Compliance Manager: or 831-646-3269