NORTHERN ILLINOIS GAS CO — Integrity Assurance Notification

ECA MECHANICAL DAMAGE EVALUATIONIn accordance with Title 49 of the Code of Federal Regulations § 192.712, Southern Company Gas has developed a set of procedures to perform an Engineering Critical Assessment to evaluate dents and other mechanical damage that could result in stress risers or other integrity impact. The procedures provided address the requirements stated within § 192.712(c) to successfully evaluate a dent discovered during either an ILI tool run or in-ditch analysis and determine proper response timing and repair methods based on the outcome of the Engineering Critical Assessment.#