Northwest Pipeline LLC NOTICE #32878 Caldwell Compressor Station Deficiency Period posted on Jun 4 2026 3:21PM TSP Name: Northwest Pipeline LLC TSP: 67977322 Critical: Y Notice Stat Desc: SUPERSEDE Notice Type Desc: CURTAILMENT Post D/T: 06/04/2026 2:07 PM MCT Notice Eff D/T: 06/04/2026 2:07 PM MCT Notice End D/T: Reqrd Rsp Desc: No response required Rsp D/T: Notice ID: 26-118 Prior Notice: 26-114 Subject: Caldwell Compressor Station Deficiency Period Notice Text: As indicated in All Shippers Notice #26-114, Northwest is
currently performing maintenance related to the Highway 20/26
Expansion through the Caldwell compressor station through June
22, 2026.

Primary southbound nomination requests at the Caldwell CS have
exceeded the available capacity of 288,000 Dth/d southbound (or
whatever Northwest cannot mitigate). Therefore, pursuant to
Sections 10.2 and 10.3 of Rate Schedule TF-1 in Northwest's
Tariff, Northwest hereby gives notice of a Deficiency Period
for Gas Day June 5, 2026. The Deficiency will be calculated
based on a design capacity of 475,000 Dth/d southbound. The
Deficiency Period will continue until the work is completed.
Northwest will post on its EBB if unable to mitigate volumes
each day 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.