Northwest Pipeline LLC
NOTICE #32398
Update Chehalis Unplanned Maintenance posted on Sep 22 2025  7:22AM

TSP Name:  Northwest Pipeline LLC     TSP:  67977322

Critical:  Y
Notice Stat Desc:  SUPERSEDE
Notice Type Desc:  MAINTENANCE
Post D/T:  09/22/2025 7:15 AM MCT
Notice Eff D/T:  09/22/2025 7:15 AM MCT
Notice End D/T:  
Reqrd Rsp Desc:  No response required
Rsp D/T:  

Notice ID:  25-161
Prior Notice:  25-139
Subject:  Update Chehalis Unplanned Maintenance

Notice Text:

Northwest is in the process of returning Unit #1 to service<br />with the anticipated full in-service date of Gas Day October 1,<br />2025.<br /><br />Please note that flow volumes might fluctuate over the next few<br />days as we are commissioning, and there may be days when flow<br />could exceed the 600,000 Dth/d southbound constraint.<br /><br />Northwest will continue to mitigate Operational Flow Orders&nbsp;<br />(OFO) and deficiency impacts at the Chehalis compressor station&nbsp;<br />on an operationally available basis, as referenced in Notice ID&nbsp;<br />25-139. Any changes or updates to the schedule will be promptly&nbsp;<br />communicated via the Northwest Pipeline Portal.&nbsp;&nbsp;<br /><br />Northwest Pipeline is working diligently to safely bring this<br />station back into service as quickly as possible to minimize<br />any impacts.<br /><br />Shippers can monitor throughput quantities and obtain a copy of&nbsp;<br />Northwest&rsquo;s OFO procedures on Northwest&rsquo;s website at&nbsp;<br />www.northwest.williams.com.&nbsp;&nbsp;<br /><br />If you have any questions, please contact your Commercial&nbsp;<br />Services Representative or the hotline at 713-215-6301.<br />