Construction and Maintenance Schedule Posting

TSP Name

Columbia Gas Transmission, LLC

TSP

054748041

Date

Time

Notice ID

25951521

Notice Type Description: Maintenance
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required

Post
Notice Effective
Notice End

Response

09/22/25
09/22/25
10/22/25



12:04:51 PM
12:00:00 AM
12:00:00 AM



Subject: Construction and Maintenance Schedule Posting

Author: Dillon Schoolcraft

Notice Text

As a courtesy, Columbia Gas Transmission, LLC (TCO) hereby notifies customers the Construction and Maintenance Schedule posted under "Construction and Maintenance" on the Informational Postings website has been updated. TCO reminds customers to please check the Maintenance Schedule on a regular basis.     The current schedule has been updated to reflect maintenance activity on the following: * Revised end date – Emporia M&R Maintenance – April 9 – October 3, 2025 (Previously scheduled to end on September 23, 2025)* Revised end date – Line H Pipeline Maintenance – September 2-23, 2025 (Previously scheduled to end on September 19, 2025)* Revised end date for Pleasant Exchange Pipeline Maintenance – September 4 – October 1, 2025 (Previously scheduled to end on September 29, 2025)* Revised end date and restrictions for PM17 Pipeline Maintenance – September 5-30, 2025 (Previously scheduled to end mid-September 2025)* Revised end date for Cobb Compressor Station D40/S7 outage – September 8-30, 2025 (Previously scheduled to end on September 21, 2025)* Revised end date for Line 1740 Pigging – September 16-22, 2025 (Previously scheduled to end on September 19, 2025)*Revised dates – L-2542 Maintenance – September 29 – October 10, 2025 (Previously scheduled for September 23 – October 4, 2025)* Line 10345 Meter Station Maintenance – September 29 – October 2, 2025* Revised dates for second iteration of Line H Pipeline Maintenance – October 6-17, 2025 (Previously scheduled for September 22 – October 10, 2025)* Line D-322 Pigging – October 7, 2025* Revised dates – L-2542 Maintenance – October 22-25, 2025 (Previously scheduled for October 16-20, 2025)* Line VM119 Pipeline Maintenance – October 20-24, 2025

Additionally, the following file(s) can be located on Informational Postings under Construction and Maintenance
TCO Construction and Maintenance Schedule 09-22-2025.pdf