Northwest Pipeline LLC NOTICE #33015 Sumas Meter Upgrade Part 2 - Maintenance Complete posted on Sep 8 2026 1:45PM 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.