Section Env-Ws 381.08 - Corrosion Control Treatment Steps and Deadlines for Small and Medium Size Systems(a) An owner of a small or medium-size system, except as provided in Env-Ws 381.06(a), shall complete the corrosion control treatment steps described in Env-Ws 381.09 through Env-Ws 381.10, Env-Ws 381.15 through Env-Ws 381.21, and Env-Ws 381.22 through Env-Ws 381.27 by adhering to the following: (1) The system owner shall conduct initial tap sampling in accordance with Env-Ws 381.18 and Env-Ws 381.24 until the system either exceeds the lead or copper action level or becomes eligible for reduced monitoring under Env-Ws 381.21; and(2) A system exceeding the lead or copper action level shall recommend to the department optimal corrosion control treatment under Env-Ws 381.09(b) within 6 months after it exceeds one of the action levels.(b) Within 12 months after a system exceeds the lead or copper action level, the department shall require the system to perform corrosion control studies as specified in Env-Ws 381.09(c) if the recommendation does not provide the corrosion control necessary to meet the lead or copper action levels specified in Env-Ws 381.03.(c) If the department does not require the system to perform the studies described in (b) above, the department shall specify optimal corrosion control treatment as specified in Env-Ws 381.10(a) through (c) within the following time frames :(1) For a medium-size system, within 18 months after such system exceeds the lead or copper action level; and(2) For a small system, within 24 months after such system exceeds the lead or copper action level.(d) If the department requires a system owner to perform corrosion control studies under (b) above, the system shall complete the studies as described in Env-Ws 381.09(d) through (i) within 18 months after the department requires that such studies be conducted.(e) If the system owner has performed corrosion control studies under (b) above, the department shall specify optimal corrosion control treatment as described in Env-Ws 381.10(a) through (c) within 6 months after completion of the corrosion control studies.(f) The system owner shall install optimal corrosion control treatment as described in Env-Ws 381.10(d) within 24 months after the department specifies such treatment.(g) The system owner shall complete follow-up sampling as described in Env-Ws 381.19 and Env-Ws 381.25 within 36 months after the department specifies optimal corrosion control treatment.(h) The department shall review the system's installation of treatment and specify optimal water quality control parameters as described in Env-Ws 381.10(e) and (f) within 6 months after completion of (g) above.(i) The system owner shall operate in compliance with the department specified optimal water quality control parameters as described in Env-Ws 381.10(g) and continue to conduct tap sampling as described in Env-Ws 381.20 and Env-Ws 381.26.N.H. Admin. Code § Env-Ws 381.08
(See Revision Note at chapter heading for Env-Ws 300) #6521, eff 6-4-97, ss by #7734, eff 8-2-02