WAC 246-215-05275. Operation and maintenance — Prohibiting a cross connection (FDA Food Code 5-205.12)

(1) A person may not create a cross connection by connecting a pipe or conduit between the drinking water system and a non drinking water system or a water system of unknown quality. (2) The piping of a non drinking water system must be durably identified so that it is readily distinguishable from piping that carries drinking water .