New Hampshire Code of Administrative Rules
Env - Department of Environmental Services
Subtitle Env-Ws - Division of Water
Chapter Env-Ws 300 - NEW HAMPSHIRE DRINKING WATER RULES
Part Env-Ws 381 - CORROSION CONTROL TREATMENT, LEAD AND COPPER ACTION LEVELS
Section Env-Ws 381.07 - Corrosion Control Treatment, Steps and Deadlines for Large Systems

Universal Citation: NH Admin Rules Env-Ws 381.07

Current through Register No. 13, March 27, 2025

(a) As of January 1, 1992, the owner of a large system, except as provided in Env-Ws 381.06(a)(2) and (a) (4), shall complete the following corrosion control treatment steps, described in Env-Ws 381.09 through Env-Ws 381.10 and Env-Ws 381.15 through Env-Ws 382.27, by the dates specified in 40 CFR 141.81(d):

(1) The system owner shall conduct initial monitoring as described in Env-Ws 381.18 and Env-Ws 381.24 during 2 consecutive 6-month monitoring periods;

(2) The system owner shall complete corrosion control studies as specified in Env-Ws 381.09(d) through (i);

(3) The system owner shall install optimal corrosion control treatment as specified in Env-Ws 381.10(d);

(4) The system owner shall complete follow-up sampling as specified in Env-Ws 381.19 and Env-Ws 381.25; and

(5) 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.

(b) In (a) above , the department shall:

(1) Specify optimal corrosion control treatment as specified in Env-Ws 381.10; and

(2) Review installation of treatment and specify optimal water quality control parameters as specified in Env-Ws 381.10(e) and (f).

(See Revision Note at chapter heading for Env-Ws 300) #6521, eff 6-4-97, ss by #7734, eff 8-2-02; amd by #9598, eff 11-21-09

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