Section PSC 135.621 - Maximum allowable operating pressure: high-pressure distribution systems additions [49 CFR 192.621](1) After 49 CFR 192.621(a)(3), insert: (3w) No person may operate a segment of a cast iron pipe.(2) After 49 CFR 192.621(b), insert: (cw) Sixty p.s.i.g. in individual distribution systems or portions of a system. The intercity or supply mains for these distribution systems may be operated at pressures higher than 60 p.s.i.g. if the number of services supplied from these mains are limited and these mains are not an integral part of the distribution system. The pressure and the services supplied from these higher pressure intercity and supply mains shall be limited to 60 p.s.i.g. unless the service lines are equipped with series regulators or other pressure limiting devices as prescribed in 49 CFR 192.197(c).Wis. Admin. Code Public Service Commission PSC 135.621
CR Register, October, 1999, No. 526, eff. 11-1-99.Amended by, CR 21-049: am. (1) Register March 2022 No. 795, eff. 4/1/2022