Update - Job 1088505 MLA near Station 100 Unplanned Maintenance Summary

TRANSCONTINENTAL GAS PIPE LINE COMPANY, LLC

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Critical:	Y
Notice Eff Date:	01/30/2025
Notice Eff Time:	08:15:15 CST
Notice End Date:
Notice End Time:
Notice ID:	15352309
Notice Stat Desc:	Supersede
Notice Type Desc:	Maint
Post Date:	01/30/2025
Post Time:	08:15:15 CST
Prior Notice:	15327215
Reqrd Rsp Desc:	Immediate response required of an operational nature may be required of impacted shippers
Rsp Date:
Rsp Time:
TSP:	007933021
TSP Name:	TRANSCONTINENTAL GAS PIPE LINE COMPANY, LLC

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Notice Text:

Subject: Update - Job 1088505 MLA near Station 100 Unplanned Maintenance Summary

An anomaly has been identified on Mainline A within the 100A0-100A10 valve segment that requires remediation. To accommodate additional anomaly work required during upcoming planned maintenance, Transco is extending the outage from January 30 to February 14. No additional impacts are anticipated. If system conditions change the segment will be returned to service to avoid potential impacts and another notice will be provided. The current schedule for this maintenance is January 25 to 30, 2025.

During this period of unplanned maintenance, non-secondary reverse path (NSRP), secondary FT, and interruptible (IT) transactions moving south to north through the location will not be available.

Operating Conditions resulting from this work will require Transco to manage transportation services moving south to north through Station 100. The total quantity available will be contingent on system conditions during the maintenance period but is anticipated to be limited to the quantity indicated below. Transactions moving north to south through this location will not be impacted.

The receipt-based Throughput Section Boundary (TSB) at Compressor Station 100 MP 890.591 will be used to manage capacity availability during this planned work. An updated Market and Production Area constraint notice will include the location and the available quantity during the indicated period.

TSB Name - Location	Location ID	Flow Direction	Design Capacity (Mdt/d)	Total Primary-Firm Qty Available (Mdt/d)	% Cuts (Primary)– Potential Shipper Impact (Based on Historical Utilization) *
Station 100 MP 890.591	9012503	South to North	6,147**	5,472	0-5%

*% Cuts (Primary) is an estimate of the impact to shippers based on historical utilization and anticipated volumes during the time of constraint. These amounts are subject to change based on actual nominated volumes and changes in the amount of available capacity.

**As defined on Transco's Informational Postings site under Operational Capacity, any constraint between the Mainline milepost 784.0 and 944.25 involving restriction of Primary volumes will result in the Operating Capacity being reflective of the amount available for both Transco and Sabal Trail.  However, the Total Scheduled Quantity represents Transco volumes only. The scheduled volumes of Sabal Trail shippers are reported under Sabal Trail’s Informational Postings Page. The Operationally Available Capacity takes into account both the Transco Scheduled Quantity and the scheduled volumes of Sabal Trail shippers posted by Sabal Trail.

If you have any questions, please contact your Transportation Services Representative.