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All backflow assemblies installed within the water service boundaries served by the City of Snohomish water utility shall be tested immediately upon installation and on an annual basis thereafter, and following each assembly retrofit. A Washington State Certified Backflow Assembly Tester shall perform the testing. All devices not functioning properly at the time of testing shall be promptly repaired or replaced. Any device not promptly repaired or replaced may cause the City of Snohomish to deny or discontinue water to the premises. All testing and repairs are the financial responsibility of the water user. A copy of the approved test report shall be provided to the Cross-Connection Control Specialist within five (5) working days of the test.

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