New Hampshire Code of Administrative Rules
Puc - Public Utilities Commission
Chapter Puc 500 - RULES FOR GAS SERVICE
Part Puc 504 - QUALITY OF GAS SERVICE
Section Puc 504.03 - Pressure Requirements

(a) Pipeline systems containing cast iron segments shall be limited to a maximum pressure of 13.8 inches of water column.

(b) Consistent with system design, the pressure at the outlet of any customer's service meter shall never be:

(c) In order to maintain records of pressure, each utility shall maintain in continuous operation a sufficient number of pressure recording devices in each area where the utility maintains a distribution system.

(d) All pressure records obtained under paragraphs (b) or (c) above shall be retained by the utility for at least 5 years and shall be available for inspection by the commission or its agents.

(e) For pressures at the outlet of any customer's service meter that exceed (b) (2) above, a legible permanent identification that includes the maximum delivery pressure shall be installed at the service meter no later than July 1, 2016. If the utility determines that a previously installed identification is not present, the utility shall install a new permanent identification as soon as practicable but no later than 60 days upon discovery of the missing identification.

(f) The utility shall retain a copy of all written customer agreements for the initial installation of any service with delivering pressures greater than 13.8 inches of water column. Such records shall be retained until the service line has been abandoned.

(g) Each utility shall make reports of pressure complaints monthly to the commission on Form E-8 pursuant to Puc 509.10.