Transco Pipeline Notice 15730779

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TRANSCONTINENTAL GAS PIPE LINE COMPANY, LLC

Critical:	Y
Notice Eff Date:	06/05/2025
Notice Eff Time:	15:33:38 CDT
Notice End Date:
Notice End Time:
Notice ID:	15730779
Notice Stat Desc:	Initiate
Notice Type Desc:	Maint
Post Date:	06/05/2025
Post Time:	15:33:38 CDT
Prior Notice:	0
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

Notice Text:

Subject: Job #1071377 Station 80 to Station 90 MLA ILI Runs Planned Outage and Maintenance Summary

Transco will be performing necessary pipeline integrity assessments associated with Job #1071377 on its 2025 Planned Outage and Maintenance Summary. This maintenance activity will impact the availability of transportation services moving south to north through Compressor Station 80.

The specific dates that will be impacted are subject to change, but the current schedule is outlined below.

Gauge Tool – 7/7

Cleaner Tool 7/8

Combo/Hard Spot Tool – 7/14

EMAT Tool – 7/16

During this period of planned maintenance, non-secondary reverse path (NSRP), secondary FT, and interruptible (IT) transactions moving south to north through the location may be available as operating capacity and conditions allow. On days that maintenance is not occurring, the availability of transportation services moving south to north will not be impacted.

Operating Conditions resulting from this work will require Transco to manage primary-firm transportation services moving south to north through the TSB location listed below. 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 mainline milepost 740.5 (Station 80) will be used to manage capacity availability including any required changes to the expected total quantity available during this planned work. An updated Market and Production Area constraint notice will include the location and the available quantity of primary-firm transportation services during the indicated period.

TSB Name - Location	Location ID	Flow Direction
ML Station 80 TSB	9012483	South to North

Estimated Outage Dates

Design Capacity (Mdt/d)

Total Qty Available (Mdt/d)

% Available Total Primary-Firm vs Design Capacity

% Cuts (Primary)– Potential Shipper Impact (Based on Historical Utilization) *

July 7 – 8

July 14

July 16

3,412

2,732

80%

0-5%

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

Based on current and historical utilization, impacts to Primary Transportation are unlikely, however, impacts to Non-Primary Transportation are anticipated.

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

Transco Pipeline Notice 15730779

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