(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:
(1) Less than 4 inches of water column; or
(2) Greater than 13.8 inches of water column, except by written agreement with the customer.
(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 department.
(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. 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 on department “Form E-8, Monthly Report of Pressure Complaints,” dated October 2023 pursuant to En 509.08.