Section Env-Ws 380.04 - Filtration Applicability and Efficacy(a) The owner of a public water system using SW/GWUDISW shall provide treatment of that source water in compliance with the treatment technique requirements.(b) The treatment technique requirements shall consist of installing and properly operating water treatment processes which achieve the following: (1) At least 99.9 percent removal or inactivation, or both, of giardia lamblia cysts between a point where the raw water is not subject to recontamination by surface water runoff and a point downstream before or at the first customer; and(2) At least 99.99 percent removal or inactivation, or both, of viruses between a point where the raw water is not subject to recontamination by surface water runoff and a point downstream before or at the first customer.(c) The owner of a public water system using a SW/GWUDISW is considered to be in compliance with the requirements of paragraph (a) and (b) of this section if it meets: (1) The requirements for avoiding filtration in Env-Ws 380.05 through Env-Ws 380.08 and the disinfection requirements in Env-Ws 380.09 through Env-Ws 380.10; or(2) The filtration requirements in Env-Ws 380.12 and the disinfection requirements in Env-Ws 380.11.(d) Any public water system using a SW/GWUDISW shall be operated onlyby operators certified pursuant to Env-Ws 367.(e) The owner of a public water system shall submit a management plan to the department for review and approval prior to any new installation of filtration for surface water. The management plan shall demonstrate the financial and administrative capability of the water system to construct the filtration facilities and to operate the facilities on a continuous basis. Adequacy of this plan in light of the capabilities of the water system shall be a criterion for approval of the filtration proposal by the department. Failing a demonstration of financial or administrative capability, the water system shall seek other feasible options for the supply of drinking water.N.H. Code Admin. R. Env-Ws 380.04
#5098, eff 3-18-91, EXPIRED 3-18-97
New. #6521, eff 6-4-97 (See Revision Note at chapter heading for Env-Ws 300); ss by #8352, eff 5-14-05