Each public water system must certify annually in writing to the director (using third party or manufacturer's certification) that when acrylamide and epichlorohydrin are used in drinking water systems, the combination (or product) of dose and monomer level does not exceed the levels specified as follows:
Acrylamide = | 0.05 per cent dosed at 1 ppm (or equivalent); |
Epichlorohydrin = | 0.01 per cent dosed at 20 ppm (or equivalent). |
Certifications can rely on manufacturers or third parties, as approved by the director.
Haw. Code R. § 11-20-47