Section R309-220-12 - Special Notice for Nitrate Exceedances above MCL by Non-Community Water Wystems (NCWS), where Granted Permission by the Director(1) Applicability of the special notice: The owner or operator of a non-community water system granted permission by the Director under R309-200-5(1)(c), Table 200-1, note (4)(b) to exceed the nitrate MCL must provide notice to persons served according to the requirements for a Tier 1 notice under R309-220-5(1) and (2).(2) Required form and manner of the special notice: Non-community water systems granted permission by the Director to exceed the nitrate MCL under R309-200-5(1)(c), Table 200-1, note (4)(b) must provide continuous posting of the fact that nitrate levels exceed 10 mg/l and the potential health effects of exposure, according to the requirements for Tier 1 notice delivery under R309-220-5(3) and the content requirements under R309-220-8.Utah Admin. Code R309-220-12