15A NCAC 18C .1406 CONTROL OF TREATMENT PROCESS
(a) The treatment process shall result in the adjustment of fluoride ion (F-) in the treated water to 1.0 mg/liter.
(b) A water treatment plant operator certified under 15A NCAC 18D shall conduct the necessary chemical analyses and supervise application of the fluoride.
(c) Samples shall be collected and analyzed from points before and after fluoridation and from one or more points in the distribution system. The minimum number of control tests required and the number of check samples to be collected and submitted to the North Carolina State Laboratory of Public Health for analysis shall be determined by the Department in conjunction with the State Health Director, based on guidance from the Center for Disease Control, and considering recommendations from the local health department and the supplier of water.
(d) The fluoride content of the water shall be determined in accordance with methods in Rule .1508 of this Subchapter.
(e) Accurate records of the amount of fluoride applied to the water and the results of all fluoride analyses shall be recorded on forms approved by the Department and submitted to the Department weekly.
(f) Any fluoridation product used by a water system shall meet the requirements of Rule .1537 of this Subchapter.
History Note: Authority G.S. 90A-29; 130A‑316;
Eff. February 1, 1976;
Readopted Eff. December 5, 1977;
Amended Eff. April 1, 2014; July 1, 1994; September 1, 1990; December 17, 1979.