Section Env-Ws 382.11 - Monitoring for Bromate(a) An owner of a community or non-transient non-community water system using ozone for disinfection or for oxidation shall collect one routine sample per month from each treatment plant in the system.(b) The sample shall be collected at the entrance to the distribution system while the ozonation system is operating under normal operating conditions.(c) After a minimum of one year of monthly sampling, a system owner may submit to the department a written request to reduce the bromate monitoring frequency.(d) The written request shall include: (2) The system EPA number; and(3) A summary of all monthly bromate sampling results.(e) The department shall notify the system owner of its determination in writing and decrease the monitoring frequency from monthly to quarterly if the department determines that the average source water bromide concentration is less than 0.05 mg/L based upon representative monthly bromide results.(f) A system may remain on reduced bromate monitoring until the running annual average source water bromide concentration, computed quarterly, is equal to or greater than 0.05 mg/L based upon representative monthly measurements for one year.(g) If the running annual average source water bromide concentration is greater than or equal to 0.05 mg/L, the system owner shall resume monthly monitoring specified in (a) above.(h) In order to remain on a reduced monitoring schedule, a system owner shall continue bromide andbromate monitoring in accordance with this section.N.H. Code Admin. R. Env-Ws 382.11
(See third Revision Note at chapter heading Env-Ws 300); #7735, eff 8-2-02