Sumas Meter Upgrade Part 2 - Maintenance Complete

TSP Name: Northwest Pipeline LLC TSP: 67977322

Critical: Y
Notice Stat Desc: SUPERSEDE
Notice Type Desc: MAINTENANCE
Post D/T: 09/08/2026 1:40 PM MCT
Notice Eff D/T: 09/08/2026 1:40 PM MCT
Notice End D/T:
Reqrd Rsp Desc: No response required
Rsp D/T:

Notice ID: 26-175
Prior Notice: 26-162
Subject: Sumas Meter Upgrade Part 2 - Maintenance Complete

Notice Text:

Northwest Pipeline would like to inform its customers that the 
Sumas Meter Upgrade Part 2 outage posted on Northwest’s website 
from Gas Day September 02, 2026, through Gas Day September 09, 
2026, and referenced in Notice #26-162 will be completed by the 
end of Gas Day September 08, 2026. 

Northwest will begin accepting nominations up to the design of 
1,409,000 Dth/d southbound through the Sumas CS (located at MP 
1484.48 in Whatcom County, Washington) effective for the Timely 
cycle for Gas Day September 09, 2026. This notice will also 
formally end the current deficiency period at the Sumas CS 
referenced in Notice #26-171. 

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.