Leakage surveys

(a)Any leakage survey required pursuant to 49 CFR 192.723, as amended from time to time, shall:#

(1)be conducted at least once each calendar year, but at intervals not exceeding 15 months, for all Mains and below-ground Petroleum Gas tanks, and at least once every 3 calendar years, but at intervals not exceeding 39 months, for all Service Lines outside of Business Districts; and 21#

(2)include any reasonably accessible and apparent below-ground piping downstream of any Customer Meter to the customer's structure or to any Gas utilization equipment if such equipment is located outdoors.#

(b)Annually from December first through April first, all cast-iron Pipe shall be leakage surveyed for Grade 1 Leaks at intervals not exceeding 15 calendar days.#

(c)Each Operator shall conduct leakage surveys under the following circumstances:#

(1)prior to paving or resurfacing, where Street alterations or repairs could have damaged any Pipeline;#

(2)in areas where construction could have damaged any Pipeline;#

(3)in unstable soil areas where Pipelines could be affected; and#

(4)in areas and at times of unusual activity that could have damaged any Pipeline, including, but not limited to, earthquakes, floods, or explosions.#

(d)When an Operator enters a customer's premises for the purpose of inspecting or servicing any Gas utilization equipment, a leakage survey that includes, but is not limited to, the taking of atmospheric samples, shall be conducted at appropriate locations, and at all Utility service entrances. In multiple-occupancy buildings, an individual apartment or dwelling unit shall constitute the customer's premises.#

(e)Each Operator shall protect against Pipeline damage from Barholes.#

(f)A leakage survey of a below-ground leak that has been repaired shall be completed not later than 30 calendar days after the date of repair. Such leak shall be considered eliminated when there are no longer any sustained subsurface Gas readings on a CGI in the area of such leak or if there is no indication of a leak during a Pressure Drop Test. If 30 calendar days after a repair, sustained subsurface Gas readings exist, the original leak shall be considered eliminated and a new leak shall be classified.#