Northwest Pipeline LLC NOTICE #32492 Sumner ESD Rescheduled posted on Oct 27 2025 7:39AM TSP Name: Northwest Pipeline LLC TSP: 67977322 Critical: Y Notice Stat Desc: SUPERSEDE Notice Type Desc: MAINTENANCE Post D/T: 10/27/2025 7:38 AM MCT Notice Eff D/T: 10/27/2025 7:38 AM MCT Notice End D/T: Reqrd Rsp Desc: No response required Rsp D/T: Notice ID: 25-200 Prior Notice: 25-198 Subject: Sumner ESD Rescheduled Notice Text:

As posted in the maintenance schedule on Northwest Pipeline's

Website and referenced in Notice ID 25-198, Northwest was

scheduled to perform the Sumner ESD on gas day October 28,

2025, which will now be rescheduled to commence on gas day

October 30, 2025. Northwest is rescheduling this outage to

allow Operations to conduct their work safely due to

potentially inclement weather in the area.

 

The Sumner CS will be limited to 816,000 Dth/d southbound

 

If primary nomination requests through the Sumner CS exceeds

the available capacity of 816,000 Dth/d southbound (or whatever

NWP cannot mitigate during any day of the maintenance),

pursuant to Sections 10.2 and 10.3 of Rate Schedule TF-1 in

Northwest's Tariff, Northwest will give notice of a Declared

Deficiency Period based on a design capacity of 1,033,000 Dth/d

southbound. The deficiency period will continue until the work

has been completed.

 

Please reference the Maintenance Schedule tab at

www.northwest.williams.com for more information.

 

If you have any questions, please call your Commercial Services

Representative or the hotline at 713-215-6301.