TSP Name: Northwest Pipeline LLC TSP: 67977322
Critical: Y
Notice Stat Desc: INITIATE
Notice Type Desc: MAINTENANCE
Post D/T: 06/25/2026 8:56 AM MCT
Notice Eff D/T: 06/25/2026 8:56 AM MCT
Notice End D/T:
Reqrd Rsp Desc: No response required
Rsp D/T:
Notice ID: 26-128
Prior Notice:
Subject: Caldwell Unit 4 Repairs - Maintenance Reminder
Notice Text:
As posted in the maintenance schedule on Northwest Pipeline's
website, Northwest will be performing maintenance at the
following location next week to complete the Caldwell Unit 4
repairs:
- Caldwell CS: located at MP 849.8 in Gem County, Idaho
beginning gas day June 29, 2026, through gas day July 10,
2026.
The Caldwell CS will be limited to 438,000 Dth/d northbound and
439,00 Dth/d southbound for the duration of the outage.
If primary nomination requests through the Caldwell CS exceeds
the available capacity of 438,000 Dth/d northbound or 439,000
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 452,000 Dth/d northbound or 475,000 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.
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