Prohibited cross-connections are the following:
(A) A cross-connection shall not be made between a public water supply system and a secondary water supply;
(B) A cross-connection shall not be made by submerged inlet;
(C) A cross-connection shall not be made between a public water supply and piping which may contain sanitary waste or chemical contaminant;
(D) A cross-connection shall not be made between a public water supply system and piping immersed in a tank or vessel which may contain a contaminant;
(E) A backflow shall constitute a prohibited cross-connection; and
(F) A reasonably foreseen potential backflow shall constitute a prohibited cross-connection.
(Prior Code, § X-1.03) Penalty, see § 51.99