TSP Name: Northwest Pipeline LLC TSP: 67977322
Critical: Y
Notice Stat Desc: INITIATE
Notice Type Desc: MAINTENANCE
Post D/T: 08/07/2025 12:12 PM MCT
Notice Eff D/T: 08/07/2025 12:12 PM MCT
Notice End D/T:
Reqrd Rsp Desc: No response required
Rsp D/T:
Notice ID: 25-114
Prior Notice:
Subject: Roosevelt ESD, Mt. Vernon ESD, Burley/Buhl Pipe Repl., and Buhl ESD - Maint. Rem
Notice Text:
As posted in the maintenance schedule on Northwest Pipeline's
website, Northwest is performing maintenance at the following
locations:
- Roosevelt CS beginning gas day August 11, 2025, through
gas day August 15, 2025.
- Mt. Vernon CS beginning gas day August 12, 2025, through
gas day August 13, 2025.
- Burley CS beginning gas day August 12, 2025, through gas
day August 15, 2025.
- Buhl CS beginning gas day August 12, 2025, through gas
day August 15, 2025.
The Roosevelt CS will be limited to 383,000 Dth/d northbound
and 350,000 Dth/d southbound for the duration of the outage.
If primary nomination requests through the Roosevelt CS exceeds
the available capacity of 383,000 Dth/d northbound or 350,000
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 546,000 Dth/d northbound or 414,000 Dth/d
southbound. The deficiency period will continue until the work
has been completed.
The Mt. Vernon CS will be limited to 1,135,000 Dth/d southbound
for the duration of the outage.
If primary nomination requests through the Mt. Vernon CS
exceeds the available capacity of 1,135,000 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.
The Burley CS will be limited to 524,000 Dth/d northbound for
the duration of the outage.
If primary nomination requests through the Burley CS exceeds
the available capacity of 524,000 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 579,000 Dth/d
northbound. The deficiency period will continue until the work
has been completed.
The Buhl CS will be limited to 526,000 Dth/d northbound for the
duration of the outage.
If primary nomination requests through the Buhl CS exceeds the
available capacity of 526,000 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 578,000 Dth/d northbound.
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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