NATURAL GAS PIPELINE CO OF AMERICA (KMI) — Integrity Assurance Notification

PRESSUREWith this notice, NGPL is providing it's technical justification that the continued pressure reduction will not jeopardize the integrity of the pipeline per 192.933(a)(2). A total of 18 anomalies were identified on the Line 004-102 in Will, DuPage, and Cook Counties, IL from a In Line Inspection (ILI) survey and reported to PHMSA previously on February 24, 2022. Work to investigate and repair each of the anomalies initiated during 1Q2022. From the anomalies identified all but two remain: One remediation dig/repair located near Cicero, IL which will be completed by next week. The remaining anomaly in NE Illinois, District 328 in Chicago, IL will be completed once all permits are received. The final location, currently awaiting final permit approvals, was identified as meeting the PHMSA Immediate Criteria of dent with metal loss. A pressure restriction was originally set in place on the pipeline followed by reducing the pipeline pressure to zero (0) psig until NPGL receives the required safe excavation permits from the railroad and utility authorities. Work to excavate and validate the ILI anomalies and perform required repairs cannot begin until all permits are received by the named authorities.#