TSP Name: Northwest Pipeline LLC TSP: 67977322
Critical: Y
Notice Stat Desc: INITIATE
Notice Type Desc: MAINTENANCE
Post D/T: 10/16/2025 2:15 PM MCT
Notice Eff D/T: 10/16/2025 2:15 PM MCT
Notice End D/T:
Reqrd Rsp Desc: No response required
Rsp D/T:
Notice ID: 25-191
Prior Notice:
Subject: Chehalis CS and Mt. Vernon CS - Maintenance Reminder
Notice Text:
As posted in the maintenance schedule on Northwest Pipeline's
website, Northwest is performing maintenance at the following
locations:
- Chehalis CS beginning gas day October 20, 2025, through
gas day October 25, 2025.
- Mt. Vernon CS beginning gas day October 21, 2025, through
gas day October 22, 2025.
For the Chehalis CS, please reference Notice ID 25-190 for the
daily operationally available capacity, OFO, and Deficiency
Period language.
The Mt. Vernon CS will be limited to 1,241,000 Dth/d southbound
for gas day October 21, 2025, and 1,177,000 Dth/d southbound
for gas day October 22, 2025.
If primary nomination requests through the Mt. Vernon CS
exceeds the available capacity of 1,241,000 Dth/d southbound
for gas day October 21, 2025, or 1,177,000 Dth/d southbound for
gas day October 22, 2025, (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.