Leaks

(a)Any device used to perform a leakage survey on a Petroleum Gas Distribution System shall be designed and calibrated for detecting Petroleum Gas.#

(b)If a Barhole leakage survey is performed, the:#

(1)leakage survey shall include tests of the atmosphere in all manholes, at cracks in pavement and sidewalks, and immediately adjacent to structure foundations; and#

(2)Barholes shall be:#

(A)placed adjacent to the Pipeline;#

(B)at the approximate depth of the Pipeline;#

(C)spaced approximately 20 feet apart; and#

(D)placed immediately adjacent to structure foundations.#

(c)A Pressure Drop Test may be utilized as the leakage survey required pursuant to 49 CFR 192.723, as amended from time to time, under the following conditions:#

(1)the pressure in the Pipeline shall be at least equal to the operating pressure;#

(2)the duration of the test shall be commensurate with the volume of the Pipeline; and#

(3)the test pressure shall be in the middle third of the range on the gauge used to monitor the test.#

(d)A Pipeline shall not be returned to service if there is an indication of a leak during a Pressure Drop Test.#

(e)If any leakage survey indicates the presence of Petroleum Gas at a structure foundation, the interior of the structure shall be immediately checked by the Operator for the presence of Petroleum Gas.#

(f)Immediately after Petroleum Gas is introduced into a Main or Service Line that has been restored after an interruption of service, a leakage survey shall be conducted by the Operator on the Main or Service Line. 45#