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Who approves and inspects backflow preventer devices?

April 26, 2017approves backflow Devices inspects Preventer

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Who approves and inspects backflow preventer devices?

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All backflow preventer devices must be approved by the WGW Engineering Division, inspected by the Utilities Cross Connection Inspector and tested by a licensed tester before activation of the water service. To contact the Cross Connection Inspector call (650) 496-6972.