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Critical: Y
Notice Stat Desc: INITIATE
Notice Type Desc: MAINTENANCE
Post D/T: 05/21/2026 7:52 AM MCT
Notice Eff D/T: 05/21/2026 7:52 AM MCT
Notice End D/T:
Reqrd Rsp Desc: No response required
Rsp D/T:
Notice ID: 26-114
Prior Notice:
Subject: Boise ESD & Hwy 20/26 Expansion LL - Maintenance Reminder
Notice Text:
As posted in the maintenance schedule on Northwest Pipeline's
website, Northwest will be performing maintenance at the
following locations next week:
- Boise CS: located at MP 802.8 in Ada County, Idaho
beginning gas day May 26, 2026, through gas day June 22,
2026.
- Caldwell CS: located at MP 849.8 in Gem County, Idaho
beginning gas day May 27, 2026, through gas day June 22,
2026.
The Boise CS will be limited to 438,000 Dth/d southbound
beginning gas day May 26, 2026, through gas day May 28, 2026,
and 336,000 Dth/d northbound beginning gas day May 27, 2026,
through gas day June 22, 2026.
If primary nomination requests through the Boise CS exceeds the
available capacity of 438,000 Dth/d southbound or 336,000 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
452,000 Dth/d southbound or 499,000 Dth/d northbound. The
deficiency period will continue until the work has been
completed.
The Caldwell CS will be limited to 288,000 Dth/d southbound for
the duration of the outage.
If primary nomination requests through the Caldwell CS exceeds
the available capacity of 288,000 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 475,000 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.
Critical: Y
Notice Stat Desc: INITIATE
Notice Type Desc: MAINTENANCE
Post D/T: 05/21/2026 7:52 AM MCT
Notice Eff D/T: 05/21/2026 7:52 AM MCT
Notice End D/T:
Reqrd Rsp Desc: No response required
Rsp D/T:
Notice ID: 26-114
Prior Notice:
Subject: Boise ESD & Hwy 20/26 Expansion LL - Maintenance Reminder
Notice Text:
As posted in the maintenance schedule on Northwest Pipeline's
website, Northwest will be performing maintenance at the
following locations next week:
- Boise CS: located at MP 802.8 in Ada County, Idaho
beginning gas day May 26, 2026, through gas day June 22,
2026.
- Caldwell CS: located at MP 849.8 in Gem County, Idaho
beginning gas day May 27, 2026, through gas day June 22,
2026.
The Boise CS will be limited to 438,000 Dth/d southbound
beginning gas day May 26, 2026, through gas day May 28, 2026,
and 336,000 Dth/d northbound beginning gas day May 27, 2026,
through gas day June 22, 2026.
If primary nomination requests through the Boise CS exceeds the
available capacity of 438,000 Dth/d southbound or 336,000 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
452,000 Dth/d southbound or 499,000 Dth/d northbound. The
deficiency period will continue until the work has been
completed.
The Caldwell CS will be limited to 288,000 Dth/d southbound for
the duration of the outage.
If primary nomination requests through the Caldwell CS exceeds
the available capacity of 288,000 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 475,000 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.