A DRINKING WATER system must be flushed and disinfected before being placed in service after construction, repair, or modification and after an emergency situation, such as a flood, that might introduce contaminants into the system.
Wash. Admin. Code § 246-215-05105
Statutory Authority: RCW 43.20.050 and 43.20.145. 13-03-109, § 246-215-05105, filed 1/17/13, effective 5/1/13.