Section En 604.05 - Pressure Surveys and Records(a) Each water utility serving 300 or more customers shall provide itself with one or more recording pressure gauges for the purpose of making pressure surveys as required by these rules.(b) These gauges shall be suitable to record the pressure experienced on the water utility's system and shall be able to record a continuous 24-hour test.(c) One of these recording pressure gauges shall be maintained in continuous service at some representative point on the water utility's mains in each individual service area containing 200 or more customers.(d) At regular intervals, but not less than once in every 5 years, and when substantial changes either in demand or distribution system occur, each water utility shall make a survey of pressures in its distribution system sufficient to determine the pressures maintained at representative points on its system and to indicate compliance with the pressure requirements herein.(e) Such surveys shall be made at or near the period of maximum usage.(f) Water utilities serving less than 300 customers may make such tests with an indicating pressure gauge, provided however, that when no recording gauge is maintained on the system such tests shall be made annually.(g) Each water utility shall retain for at least 2 years and shall make available for inspection by the department or its representative all pressure records obtained under this section.(h) Reports of pressure complaints shall be made on Form E-14, which is described as En 609.05, once a month, if any occur.N.H. Admin. Code § En 604.05
Derived from Number 15, Filed April 11, 2024, Proposed by #13911, Effective 3/21/2024, Expires 3/21/2034 (see Revision Note at chapter heading for En 600).