Northwest Pipeline LLC
NOTICE #33004
Sumas Compressor Station Deficiency Period posted on Aug 31 2026  3:19PM

TSP Name:  Northwest Pipeline LLC     TSP:  67977322

Critical:  Y
Notice Stat Desc:  SUPERSEDE
Notice Type Desc:  CURTAILMENT
Post D/T:  08/31/2026 3:15 PM MCT
Notice Eff D/T:  08/31/2026 3:15 PM MCT
Notice End D/T:  
Reqrd Rsp Desc:  No response required
Rsp D/T:  

Notice ID:  26-167
Prior Notice:  26-156
Subject:  Sumas Compressor Station Deficiency Period

Notice Text:

<p><span style="font-family:'Courier New';">As indicated in All Shippers Notice #26-156, Northwest is </span></p><p><span style="font-family:'Courier New';">currently performing maintenance at the Sumas CS through </span></p><p><span style="font-family:'Courier New';">September 01, 2026. <span>&nbsp;</span></span></p><p><span style="font-family:'Courier New';">&nbsp;</span></p><p><span style="font-family:'Courier New';">Primary southbound nomination requests at the Sumas CS have </span></p><p><span style="font-family:'Courier New';">exceeded the available capacity of 968,000 Dth/d southbound (or </span></p><p><span style="font-family:'Courier New';">whatever Northwest cannot mitigate). Therefore, pursuant to </span></p><p><span style="font-family:'Courier New';">Sections 10.2 and 10.3 of Rate Schedule TF-1 in Northwest's </span></p><p><span style="font-family:'Courier New';">Tariff, Northwest hereby gives notice of a Deficiency Period </span></p><p><span style="font-family:'Courier New';">for Gas Day September 01, 2026. The Deficiency will be </span></p><p><span style="font-family:'Courier New';">calculated based on a design capacity of 1,409,000 Dth/d </span></p><p><span style="font-family:'Courier New';">southbound. The Deficiency Period will continue until the work </span></p><p><span style="font-family:'Courier New';">is completed. Northwest will post on its EBB if unable to </span></p><p><span style="font-family:'Courier New';">mitigate volumes each day until the work is completed.</span></p><p><span style="font-family:'Courier New';">&nbsp;</span></p><p><span style="font-family:'Courier New';">As a reminder, the Sumas Meter Upgrade Part 2 referenced in All </span></p><p><span style="font-family:'Courier New';">Shippers Notice #26-162 will further limit the available </span></p><p><span style="font-family:'Courier New';">capacity to 821,000 Dth/d southbound beginning Gas Day </span></p><p><span style="font-family:'Courier New';">September 02, 2026, through Gas Day September 09, 2026.</span></p><p><span style="font-family:'Courier New';">&nbsp;</span></p><p><span style="font-family:'Courier New';">Please reference the Maintenance Schedule tab at </span></p><p><a href="http://www.northwest.williams.com/"><span style="font-family:'Courier New';">www.northwest.williams.com</span></a><span style="font-family:'Courier New';"> for more information.</span></p><p><span style="font-family:'Courier New';">&nbsp;</span></p><p><span style="font-family:'Courier New';">&nbsp;</span></p><p><span style="font-family:'Courier New';">If you have any questions, please call your Commercial Services </span></p><p><span style="font-family:'Courier New';">Representative or the hotline at 713-215-6301.</span></p>