Northwest Pipeline LLC NOTICE #32372 Goldendale ESD & Mt. Vernon 8600 Hr. Inspections - Maintenance Reminder posted on Sep 5 2025 9:24AM TSP Name: Northwest Pipeline LLC TSP: 67977322 Critical: Y Notice Stat Desc: INITIATE Notice Type Desc: MAINTENANCE Post D/T: 09/05/2025 9:24 AM MCT Notice Eff D/T: 09/05/2025 9:24 AM MCT Notice End D/T: Reqrd Rsp Desc: No response required Rsp D/T: Notice ID: 25-142 Prior Notice: Subject: Goldendale ESD & Mt. Vernon 8600 Hr. Inspections - Maintenance Reminder Notice Text:

As posted in the maintenance schedule on Northwest Pipeline's

website, Northwest is performing maintenance at the following

locations:

 

-      Goldendale CS beginning gas day September 08, 2025,

       through gas day September 12, 2025.

-      Mt. Vernon CS beginning gas day September 08, 2025,

       through gas day September 19, 2025.

 

The Goldendale CS will be limited to 375,000 Dth/d northbound

and 375,000 Dth/d southbound for the duration of the outage.

 

If primary nomination requests through the Goldendale CS

exceeds the available capacity of 375,000 Dth/d northbound or

375,000 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 543,000 Dth/d northbound or 393,000 Dth/d

southbound. The deficiency period will continue until the work

has been completed.

 

The Mt. Vernon CS will be limited to 1,246,000 Dth/d southbound

for the duration of the outage.

 

If primary nomination requests through the Mt. Vernon CS

exceeds the available capacity of 1,246,000 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

1,277,000 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.