TSP Name: Northwest Pipeline LLC TSP: 67977322
Critical: Y
Notice Stat Desc: INITIATE
Notice Type Desc: MAINTENANCE
Post D/T: 10/24/2025 7:42 AM MCT
Notice Eff D/T: 10/24/2025 7:42 AM MCT
Notice End D/T:
Reqrd Rsp Desc: No response required
Rsp D/T:
Notice ID: 25-198
Prior Notice:
Subject: Vernal Engine Exchange & Sumner ESD - Maintenance Reminder
Notice Text:
As posted in the maintenance schedule on Northwest Pipeline's
website, Northwest is performing maintenance at the following
locations:
- Vernal CS beginning gas day October 27, 2025, through
gas day October 31, 2025.
- Sumner CS beginning gas day October 28, 2025, through
gas day October 28, 2025.
The Vernal CS will be limited to 297,000 Dth/d northbound and
269,000 Dth/d southbound
If primary nomination requests through the Vernal CS exceeds
the available capacity of 297,000 Dth/d northbound or 269,000
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
353,000 Dth/d northbound or 324,000 Dth/d southbound. The
deficiency period will continue until the work has been
completed.
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.