Columbia Gulf Transmission Notice 25942833

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TSP Name

Columbia Gulf Transmission, LLC

TSP

007854581

Date

Time

Notice ID

25942833

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

Post
Notice Effective
Notice End

Response

07/30/25
07/30/25
08/30/25



1:51:35 PM
12:00:00 AM
12:00:00 AM



Subject: Mainline-300 Pigging (HartSEG), Effective August 6-8, 2025

Author: Dillon Schoolcraft

Notice Text

Columbia Gulf Transmission, LLC (CGT) reminds customers of upcoming pigging activities from Hartsville Compressor Station to Hampshire Compressor Station beginning Wednesday, August 6, 2025, through Friday, August 8, 2025. As a result, the backhaul capacity through HartSEG will be reduced to a level between 2,250,000 Dth and 2,500,000 Dth effective Timely Cycle for Gas Day August 6, 2025.CGT anticipates this restriction may result in curtailments to Interruptible, Secondary Firm, and Primary Firm services. Please see the details provided below for more informationHartSEG·        Estimated Capacity Setting: 2,250,000 Dth – 2,500,000 Dth·        Design Capacity: 2,544,656 Dth·        Posted Percentage: 88% - 98% Due to the potential impact to firm service, CGT encourages customers to monitor the scheduled volumes on the Operationally Available Capacity screen on Informational Postings, as nominations can fluctuate based on market conditions. Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff). By means of this notice, CGT is establishing the 7-day Average Usage Quantity to be the period of July 1-7, 2025, pursuant to the provisions in the Tariff. Please contact your Customer Services Representative with any questions.