TSP Name: Northwest Pipeline LLC TSP: 67977322
Critical: Y
Notice Stat Desc: SUPERSEDE
Notice Type Desc: MAINTENANCE
Post D/T: 06/11/2026 2:36 PM MCT
Notice Eff D/T: 06/11/2026 2:36 PM MCT
Notice End D/T:
Reqrd Rsp Desc: No response required
Rsp D/T:
Notice ID: 26-120
Prior Notice: 26-114
Subject: Highway 20/26 Expansion LL - Maintenance Complete
Notice Text:
Northwest Pipeline would like to inform its customers that the
Highway 20/26 Expansion LL posted on Northwest’s website from
Gas Day May 26, 2026, through Gas Day June 22, 2026, and
referenced in Notice #26-114 will be completed early.
Northwest will begin accepting nominations up to the design of
499,000 Dth/d northbound through the Boise CS (located at MP
802.8 in Ada County, Idaho) and nominations up to the design of
475,000 Dth/d southbound through the Caldwell CS (located at MP
849.8 in Gem County, Idaho) effective for the Timely cycle for
Gas Day June 12, 2026. This notice will also formally end the
current deficiency period at the Caldwell CS referenced in Notice #26-118.
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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