Cross connection of the public water supply system and any other water supply system or source including, but not limited to, the following are prohibited:
(A) Between a public water supply system and a secondary water supply.
(B) By submerged inlet.
(C) Between a lawn sprinkling system and the public water supply system.
(D) Between a public water supply and piping which may contain sanitary waste or chemical contaminant.
(E) Between a public water supply system and piping immersed in a tank or vessel which may contain a contaminant. (Ord. 555, 12-20-1982)