Northwest Notice 25-078

TSP Name: Northwest Pipeline LLC TSP: 67977322

Critical: Y
Notice Stat Desc: INITIATE
Notice Type Desc: MAINTENANCE
Post D/T: 06/05/2025 9:40 AM MCT
Notice Eff D/T: 06/05/2025 9:40 AM MCT
Notice End D/T:
Reqrd Rsp Desc: No response required
Rsp D/T:

Notice ID: 25-078
Prior Notice:
Subject: Pegram ESD/Lava Solar Inspections, Sumas ESD, & Baker ESD Maintenance Rreminder

Notice Text:

As posted in the maintenance schedule on Northwest Pipeline's 
website, Northwest is performing maintenance at the following 
locations:

- Pegram CS beginning on gas day June 09, 2025, through gas 
        day June 13, 2025.
- Sumas CS beginning on gas day June 10, 2025, through gas 
        day June 11, 2025.
- Baker CS beginning on gas day June 10, 2025, through gas 
        day June 12, 2025.

The Pegram CS will be limited to 589,000 Dth/d northbound for 
the duration of the outage. 

If primary nomination requests through the Pegram CS exceeds 
the available capacity of 589,000 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 
is completed on gas day June 13, 2025. 

The Sumas CS will be limited to 1,070,000 Dth/d southbound for 
the duration of the outage. 

If primary nomination requests through the Sumas CS exceeds the 
available capacity of 1,070,000 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 1,409,000 Dth/d 
southbound. The deficiency period will continue until the work 
is completed on gas day June 11, 2025. 

The Baker CS will be limited to 357,000 Dth/d northbound and 
462,000 Dth/d southbound for the duration of the outage. 

If primary nomination requests through the Baker CS exceeds the 
available capacity of 357,000 Dth/d northbound or 462,000 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 
446,000 Dth/d northbound or 491,000 Dth/d southbound. The 
deficiency period will continue until the work is completed on 
gas day June 12, 2025. 

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.