Backflow prevention devices for protecting the city’s water system shall be installed on all service connections to the premises where:
(A) There is an auxiliary water supply which is, or can be, connected to the potable water piping;
(B) There are any cross-connections as the term is defined in § 50.031;
(C) The nature and extent of any activity on the premises, the materials used in connection with any activity on the premises or materials stored on the premises, could contaminate or pollute the drinking water supply in any way;
(D) There is piping for conveying or containing liquids other than potable water, and where that piping is under pressure and is installed and operated in a manner which could cause a cross-connection;
(E) There are internal cross-connections that are not correctable, or intricate plumbing arrangements which make it impractical to ascertain whether or not cross-connections exist;
(F) There is unduly restricted entry so that inspections for cross-connections cannot be made with sufficient frequency or with sufficient notice to assure that cross-connections do not exist;
(G) There are fire sprinkler systems using non-potable piping; and
(H) There is backflow potential.
(Ord. 490, passed 4-11-2005)