40 CFR § 141.209
Special notice for nitrate exceedances above MCL by non-community water systems (NCWS), where granted permission by the primacy agency under §141.11(d)
June 9, 2020
CFR

(a) When is the special notice to be given? The owner or operator of a non-community water system granted permission by the primacy agency under §141.11(d) to exceed the nitrate MCL must provide notice to persons served according to the requirements for a Tier 1 notice under §141.202(a) and (b).

(b) What is the form and manner of the special notice? Non-community water systems granted permission by the primacy agency to exceed the nitrate MCL under §141.11(d) 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 §141.202(c) and the content requirements under §141.205.


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