In addition, on January 27, 2010 the Agency produced accessible to the public for remark its draft proposed 810.2000 Series Product Performance Guidelines which integrated draft proposed tips for disinfectant cure of tricky surfaces. In 1998, the Office of Water (OW) operating with the Office of Pesticide Programs (OPP) founded a greatest residual disinfectant level (MRDL) of four. mg/L (ppm) for chlorine (40 CFR 141.
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