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 374 - DESIGN STANDARDS FOR LARGE PUBLIC WATER SYSTEMS
Section Env-Ws 374.01 - Adoption by Reference

(a) Except as otherwise required by these rules, treatment, distribution, and storage components and all other appurtenances of all public water systems serving over 1,000 people and those providing fire protection by means of street hydrants shall be designed in accordance with the practices and standards set forth in the 2003 edition of "Recommended Standards for Water Works," committee report of the Great Lakes - Upper Mississippi River Board of State and Provincial Public Health and Environmental Managers with the following exceptions:

(b) Treatment criteria for surface water filtration shall be as specified in Env-Ws 380. Treatment criteria for corrosion control shall be as specified in Env-Ws 381.

(c) Site selection, yield and drawdown testing, and source water protection for wells for community water systems and water quality for new wells shall be as specified in Env-Ws 378 or Env-Ws 379.

(d) Standards for well abandonment shall be as specified in We 600 as adopted by the New Hampshire water well board.

(e) Standards for submersible pumps shall be as specified in We 600 as adopted by the New Hampshire water well board.

(f) Standards for installation, maintenance, repair, or replacement of pumps shall be as specified in We 700 as adopted by the New Hampshire water well board.

(g) Standby power shall be required except in cases where there is an adequate alternate backup supply of water meeting minimum pressure requirements.

(h) The total developed groundwater source capacity shall equal or exceed the design maximum day demand and equal or exceed the design average day demand with the largest producing well out of service.