WAC 246-291-220. Group B system disinfection

(1) A purveyor shall disinfect a Group B system before providing service to any consumer. (2) The water system disinfection procedures must conform to the following standards: (a) AWWA C651-05 or APWA/WSDOT (2010 revision), for water main disinfection; (b) AWWA C652-02, for reservoir disinfection; and (c) AWWA C654-03, for well disinfection.