TSP Name: Northwest Pipeline LLC TSP: 67977322
Critical: Y
Notice Stat Desc: INITIATE
Notice Type Desc: MAINTENANCE
Post D/T: 07/16/2026 2:10 PM MCT
Notice Eff D/T: 07/16/2026 2:10 PM MCT
Notice End D/T:
Reqrd Rsp Desc: No response required
Rsp D/T:
Notice ID: 26-137
Prior Notice:
Subject: Pegram ESD & Pocatello M&ERP Tie-in ML - Maintenance Reminder
Notice Text:
As posted in the maintenance schedule on Northwest Pipeline's
website, Northwest will be performing maintenance at the
following locations next week:
- Pegram CS: located at MP 495.54 in Bear Lake County,
Idaho beginning gas day July 20, 2026, through gas day
July 24, 2026.
- Pocatello CS: located at MP 607.28 in Power County, Idaho
beginning gas day July 24, 2026, through gas day August
15, 2026.
The Pegram CS will be limited to 602,000 Dth/d northbound for
the duration of the outage.
If primary nomination requests through the Pegram CS exceeds
the available capacity of 602,000 Dth/d northbound (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 654,000 Dth/d
northbound. The deficiency period will continue until the work
has been completed.
The Pocatello CS will be limited to 398,000 Dth/d northbound
for the duration of the outage.
If primary nomination requests through the Pocatello CS exceeds
the available capacity of 398,000 Dth/d northbound (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 610,000 Dth/d
northbound. 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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