ENBRIDGE GAS OHIO — Integrity Assurance Notification

REASSESSMENT INTERVAL ABOVE 30% SMYSIn accordance with 49 C.F.R. § 192.939(a) Dominion Energy East Ohio, Operator ID - 4060, (Dominion or the Company) provides written notice of a delay in the integrity reassessment for a short, intrastate, branch transmission pipeline (Line #212 A/7) pursuant to the statutory and regulatory 6-month extension provision.1 Cu1Tently the 7-year reassessment for this branch line is due by the end of 2022. The intent of this letter is to provide the Pipeline and Hazardous Materials Safety Administration (PHMSA) and the Public Utilities Commission of Ohio (PUCO) with written notice, in accordance with§ 192.18, and with justification of the need for the extension. By way of this letter, Dominion also provides notice of its intent to replace Line #212 A/7 in 2023.#