Section Env-Dw 405.02 - Applicability(a) The rules of this part shall apply to community water systems, as defined in RSA 485:1-a, I, that serve 25 or more but fewer than 1,000 persons without fire protection provided by street hydrants.(b) Water systems serving 1,000 persons or more or having fire protection provided by street hydrants shall be governed by Env-Dw 302, Env-Dw 402 , Env-Dw 404, and Env-Dw 602 .(c) Vacation home developments and conversions from transient use occupancy to year-round residential use shall be considered community water systems as specified in Env-Dw 401.01(a) through (e).(d) A small community water system shall be assumed to serve 2.5 people per household for residences with 2 or more bedrooms. Residences with fewer than 2 bedrooms, efficiency apartments, elderly housing units, or other similar types of residences where more specific information is provided shall be assumed to serve 1.5 people per residence.(e) The department shall determine whether a water system is a small community water system based on the following criteria: (1) The number of people or households served;(2) Suitability for year-round occupancy, in accordance with Env-Dw 401.01(b); and(3) Whether the occupancy is by the same person(s) on each occasion.(f) For the purpose of (e), above, a small community water system shall be one proposed to ultimately serve a permanent, year-round, residential population even if that population is initially weekend or seasonal in nature.(g) Those non-transient, non-community (NTNC) water systems whose reliability is directly important to public health, such as schools or other facilities that are used as shelters during public emergencies, shall comply with the design criteria of this part pertaining to the sizing of the water storage tanks and booster pumps and other related appurtenances.(h) Existing small community water systems that propose to expand shall comply with the design criteria of this part.(i) Existing small community water systems that are ordered by the department to make water system improvements shall comply with the design criteria of this part.(j) A water system with 3 or more separate sources or distribution systems, where each source or distribution system serves less than 10 households, shall be considered a small community water system as long as the total number of households served by the multiple sources or distribution systems exceeds 10.N.H. Code Admin. R. Env-Dw 405.02
(See Revision Note at part heading for Env-Dw 405) #10612, eff 6-1-14