No water service connection to any premises shall be installed or continued in the City unless the water supply is protected by backflow prevention devices as may be required by this Chapter, Idaho Code, and all standards, rules and regulations of the State of Idaho, the Idaho Department of Health and Welfare, and any other Federal, State, County or City authority or agency thereof. The installation or maintenance of a cross connection which will endanger the water quality of the potable water supply of the City shall be unlawful and is prohibited. Any such cross connection now existing or hereafter installed is hereby declared to be a public nuisance and the same shall be abated. The control or elimination of cross connections shall be in accordance with this Chapter, Idaho Code, and all standards, rules and regulations of the State of Idaho, the Idaho Department of Health and Welfare, and any other Federal, State, County or City authority or agency thereof, together with the latest addition of appropriate manuals of standard practice pertaining to cross connection control enacted by the City and any applicable County, State and Federal authorities and agencies. The City shall have the authority to establish requirements more stringent than State regulations if it deems that the conditions so dictate. (Ord. 173, 9-16-80)