Finished water storage facilities which deliver water to the user without later treatment shall be covered, or the water from an uncovered finished water storage facility shall be continuously treated to achieve inactivation or removal of at least 99.99 percent virus, 99.9 percent Giardia lamblia, and 99 percent Cryptosporidium in a manner approved by the State, in accordance with section 5-1.22(b) of this Subpart, before being discharged to the distribution system.
N.Y. Comp. Codes R. & Regs. Tit. 10 §§ 5-1.32