New Hampshire Code of Administrative Rules
Env - Department of Environmental Services
Subtitle Env-Dw - Drinking Water Programs
Chapter Env-Dw 400 - PUBLIC WATER SYSTEM CLASSIFICATION AND DESIGN
Part Env-Dw 405 - DESIGN STANDARDS FOR SMALL COMMUNITY WATER SYSTEMS
Section Env-Dw 405.26 - Water Treatment Facilities

Universal Citation: NH Admin Rules Env-Dw 405.26

Current through Register No. 13, March 27, 2025

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(a) Water treatment processes at small community water systems shall:

(1) Maximize the effectiveness of treatment;

(2) Have sufficient controls and monitors to identify treatment performance and aid in operation;

(3) Support reliability and flexibility of operations;

(4) Have low capital and operational costs;

(5) Be easily repaired; and

(6) Be sized and configured consistent with the practices and standards of the professional water treatment industry.

(b) Each water system owner who wishes to install or modify a treatment process shall submit the following to the department in writing:

(1) The name, location, and PWS ID number of the system;

(2) The name, mailing address, and daytime telephone number of an individual who is knowledgeable about the proposed treatment process who can answer questions about the proposal on behalf of the owner;

(3) A description of the proposed treatment process, including how the process functions conceptually;

(4) A technical design proposal which identifies necessary equipment, chemicals, plumbing, and electrical elements, as specified in Env-Dw 405.27;

(5) A description of the anticipated treatment wastes and their disposal, in accordance with Env-Dw 405.28; and

(6) An operation and maintenance manual, as specified in Env-Dw 405.29; and

(7) A monitoring plan for determining the quality of the treated water and waste flows, as specified in Env-Dw 405.30.

(c) The department shall approve the water treatment process application if the department determines that the proposal meets the criteria specified in (a), above, and any item-specific criteria listed in Env-Dw 405.27 through Env-Dw 405.30.

(d) The department shall inform the applicant of its decision in writing. If the decision is to not approve the proposal, the decision shall specify the reason(s) for the non-approval.

(See Revision Note at part heading for Env-Dw 405) #10612, eff 6-1-14

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