TSP Name: Northwest Pipeline LLC TSP: 67977322
Critical: Y
Notice Stat Desc: INITIATE
Notice Type Desc: MAINTENANCE
Post D/T: 07/31/2025 1:34 PM MCT
Notice Eff D/T: 07/31/2025 1:34 PM MCT
Notice End D/T:
Reqrd Rsp Desc: No response required
Rsp D/T:
Notice ID: 25-110
Prior Notice:
Subject: Green River ESD&Solar Inspections, Sumner I/O shutdowns, & Oregon City 8600 hr i
Notice Text:
As posted in the maintenance schedule on Northwest Pipeline's
website, Northwest is performing maintenance at the following
locations:
- Green River CS beginning gas day August 04, 2025, through
gas day August 08, 2025.
- Sumner CS beginning gas day August 05, 2025, through gas
day August 06, 2025.
- Oregon City CS beginning gas day August 06, 2025, through
gas day August 10, 2025.
The Green River North Constraint will be limited to 360,000
Dth/d northbound and 676,000 Dth/d southbound for the duration
of the outage.
If primary nomination requests through the Green River North
Constraint exceeds the available capacity of 360,000 Dth/d
northbound or 676,000 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 455,000 Dth/d northbound
or 761,000 Dth/d southbound. The deficiency period will
continue until the work has been completed.
The Sumner CS will be limited to 816,000 Dth/d southbound
for the duration of the outage.
If primary nomination requests through the Sumner CS exceeds
the available capacity of 816,000 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 1,033,000 Dth/d
southbound. The deficiency period will continue until the work
has been completed.
The Oregon City CS will be limited to 240,000 Dth/d southbound
for the duration of the outage.
If primary nomination requests through the Oregon City CS
exceeds the available capacity of 240,000 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
250,000 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.
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