(a) When Tucson Water determines that the water supplied by the public water systems may be subject to contamination or pollution, an approved backflow prevention method shall be required at every service connection to a customer's water system. The customer shall install the required backflow protection within the time specified by Tucson Water. In determining the time in which backflow protection shall be installed, Tucson Water shall consider the degree of hazard potential to the public water supplies.
(b) The backflow prevention method required shall be determined by Tucson Water. The method required by Tucson Water shall be sufficient to protect against the hazard potential, as determined by Tucson Water, to the public water supplies.
(Ord. No. 9976, § 2, 5-24-04)