Drinking water regulations

Sep 23, 2016 · "Acute risk" means the potential for a contaminant or disinfectant residual to cause acute health effects, i.e., death, damage or illness, as a result of a single period of exposure of a duration measured in seconds, minutes, hours, or days. ... Treatment Points Conventional, direct, or inline 15 Diatomaceous earth 12 Slow sand, membrane ... ................
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