Each utility shall have on file at its principal office located within the state a map, maps or drawings showing the following:
(a) Size, character and location of mains, including valves;(b) Size and location of each service line, where practicable, provided that in lieu of showing service locations on maps, a card record or other suitable means may be used; and(c) Layout of all principal production plants and other facilities to show size, location and character of all major equipment, pipe lines, connections, valves and other equipment used.N.H. Admin. Code § Puc 1105.02
(See Revision Note at Chapter heading Puc 1100) #6445, eff 1-28-97; ss by #8244, eff 12-31-04; ss by #10307, eff 4-9-13