TSP Name: Northwest Pipeline LLC TSP: 67977322
Critical: Y
Notice Stat Desc: INITIATE
Notice Type Desc: MAINTENANCE
Post D/T: 02/05/2026 1:56 PM MCT
Notice Eff D/T: 02/05/2026 1:56 PM MCT
Notice End D/T:
Reqrd Rsp Desc: No response required
Rsp D/T:
Notice ID: 26-019
Prior Notice:
Subject: Chehalis - Unplanned Maintenance, Notice of Recall and OFO, Potential Deficiency
Notice Text:
Northwest is experiencing unplanned maintenance at Chehalis
Unit 2 located at MP 1289.38 in Lewis County, Washington. New
replacement parts have been ordered and are in route to
complete the repairs as quickly as possible. To maintain the
integrity of the pipeline, the available southbound capacity
will be restricted beginning gas day Saturday, February 07,
2026, with the anticipated return to service on gas day
Tuesday, February 10, 2026.
Effective gas day Saturday, February 07, 2026, the available
capacity at the Chehalis Compressor Station will be limited to
500,000 Dth/day southbound.
Additionally, effective gas day Saturday, February 07, 2026,
and until further notice, Northwest is issuing an OFO Recall
Advisory and Operational Flow Order (OFO) southbound through
the Chehalis compressor pursuant to Section 14.15(d) of its
Tariff.
Under the OFO Recall Advisory, Shippers are required to: (1)
recall capacity that is subject to an OFO recall provision; or
(2) take other action that is acceptable to Northwest, to
satisfy its OFO obligation.
If the southbound scheduled quantities exceed Northwest’s
design capacity of 672,000 Dth/d at Chehalis, Northwest will
provide Shippers with their specific OFO obligations by 4:00
p.m. MST. Shippers must comply with their OFO obligations no
later than the Evening nomination deadline (5:00 p.m. MST).
If an OFO is necessary for a given Gas Day, Northwest will wait
until the Evening scheduling process to provide notice of a
Declared Deficiency period and will make deficiency cuts to
bring the nomination requests at the Chehalis compressor from
the design capacity of 672,000 Dth/d to the operationally
available capacity of 500,000 Dth/d. If an OFO is not
necessary, but a deficiency period is, Northwest will provide
notice of a Declared Deficiency period and will make deficiency
cuts in the Timely scheduling process to bring the nomination
requests at the Chehalis compressor to the operationally
available capacity of 500,000 Dth/d (or whatever NWP cannot
mitigate during any day of the unplanned maintenance period),
all pursuant to Sections 10.2 and 10.3 of Rate Schedule TF-1 in
Northwest's Tariff. The deficiency period will continue until
the work is 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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