The O/O of a community water system or non-transient, non-community water system shall monitor for compliance with the SMCLs listed in Env-Dw 706 once every 3 years.
N.H. Admin. Code § Env-Dw 713.03
(See Revision Note at #1 chapter heading for Env-Dw 700) #9700, eff 5-1-10