Northwest Notice 26-076

TSP Name: Northwest Pipeline LLC TSP: 67977322

Critical: Y
Notice Stat Desc: INITIATE
Notice Type Desc: MAINTENANCE
Post D/T: 04/23/2026 9:11 AM MCT
Notice Eff D/T: 04/23/2026 9:11 AM MCT
Notice End D/T:
Reqrd Rsp Desc: No response required
Rsp D/T:

Notice ID: 26-076
Prior Notice:
Subject: Maintenance Reminder - McMinnville ESD, Snohomish Pump Install, & HWY 20/26 Expa

Notice Text:

As posted in the maintenance schedule on Northwest Pipeline's 
website, Northwest will be performing maintenance at the 
following locations next week:

- McMinnville CS: located at MP 53.09 in Marion County, 
        Oregon beginning gas day April 27, 2026, through gas day 
        April 28, 2026.
- Snohomish CS: located at MP 1393.95 in Snohomish County, 
        Washington beginning gas day April 27, 2026, through 
        gas day April 29, 2026.
- Boise CS: located at MP 802.8 in Ada County, Idaho 
        beginning gas day April 30, 2026, through gas day May 23, 
        2026.
- Caldwell CS: located at MP 849.8 in Gem County, Idaho 
        beginning gas day April 30, 2026, through gas day May 23, 
        2026.

The McMinnville CS will be limited to 171,000 Dth/d southbound 
for the duration of the outage.

If primary nomination requests through the McMinnville CS 
exceeds the available capacity of 171,000 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 
206,000 Dth/d southbound. The deficiency period will continue 
until the work has been completed. 

The Snohomish CS will be limited to 1,028,000 Dth/d southbound 
for the duration of the outage.

If primary nomination requests through the Snohomish CS exceeds 
the available capacity of 1,028,000 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 
1,194,000 Dth/d southbound. The deficiency period will continue 
until the work has been completed.

The Boise CS will be limited to 378,000 Dth/d northbound for 
the duration of the outage.

If primary nomination requests through the Boise CS exceeds the 
available capacity of 378,000 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 499,000 Dth/d northbound. 
The deficiency period will continue until the work has been 
completed.

The Caldwell CS will be limited to 363,000 Dth/d southbound for 
the duration of the outage.

If primary nomination requests through the Caldwell CS exceeds 
the available capacity of 363,000 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 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.