COLORADO INTERSTATE GAS CO — Integrity Assurance Notification

REASSESSMENT INTERVAL ABOVE 30% SMYSCIG uses internal inspection tools to assess HCAs on Line 0124-A, and has attempted two In-line Inspection (ILI) surveys in 2021. These surveys did not provide the survey information for two of the three HCAs associated with Line 0124-A. A third ILI survey was scheduled for December 28, 2021 but CIG has been informed by the vendor that they have identified faults with the ILI tool and replacement parts will not arrive until January 2022. The next ILI survey is currently scheduled for January 4, 2022.Since the deadline is December 31, 2021 and we only recently became aware of the lack of internal inspection tools, CIG is applying for this waiver as soon as the need for the waiver became known, as required by 49CFR 192.943(b).The HCAs associated with this survey segment on CIG Line 0124-A are HCA IDs 2988, 71040, and 2989. A map is enclosed. This pipeline system supplies natural gas operated by critical customers including Dominion (receipt and delivery), Williams (receipt) and Tallgrass Energy Partners (receipt and delivery).#