Northwest Pipeline LLC NOTICE #31344 September 2023 Maintenance Reminder posted on Sep 7 2023 7:18AM TSP Name: Northwest Pipeline LLC TSP: 67977322 Critical: N Notice Stat Desc: INITIATE Notice Type Desc: MAINTENANCE Post D/T: 09/07/2023 7:15 AM MCT Notice Eff D/T: 09/07/2023 7:15 AM MCT Notice End D/T: Reqrd Rsp Desc: No response required Rsp D/T: Notice ID: 23-183 Prior Notice: Subject: September 2023 Maintenance Reminder Notice Text: As posted in the maintenance schedule on Northwest Pipeline's 
website and as communicated in the annual maintenance call, 
Northwest has the following maintenance projects scheduled in 
the month of September which may result in potential impacts. 

Snohomish Electric Start System
Cut Point: Snohomish Compressor Station
Design Capacity MDth/d: 1118 - S
Available Capacity MDth/d: 853 - S
Start: 09/06/2023 End: 09/22/2023

Soda to Pegram Digs
Cut Point: Kemmerer Compressor Station
Design Capacity MDth/d: 415 - N
Available Capacity MDth/d: 415 - N
Start: 09/08/2023 End: 10/13/2023
*NOTE: New project added to the schedule and Northwest is not 
anticipating any impacts to customers

Soda to Lava High Priority Digs
Cut Point: Lava Hot Springs Compressor Station
Design Capacity MDth/d: 279 - S
Available Capacity MDth/d: 279 - S
Start: 09/12/2023 End: 09/30/2023
*NOTE: New project added to the schedule and Northwest is not 
anticipating any impacts to customers

Vernal Hydrotest
Cut Point: Vernal Compressor Station
Design Capacity MDth/d: 353/324 – N/S
Available Capacity MDth/d: 0/0 – N/S
Start: 09/14/2023 End: 09/23/2023
*Reminder: Clay Basin will be inaccessible during this work to 
safely isolate the Hydrotest segment

Sumner Electric Start System
Cut Point: Sumner Compressor Station
Design Capacity MDth/d: 960 - S
Available Capacity MDth/d: 743 - S
Start: 09/25/2023 End: 10/07/2023

2023 Plymouth to Mesa SCCDA Digs
Cut Point: Mesa Compressor Station
Design Capacity MDth/d: 92 – S
Available Capacity MDth/d: 92 – S
Start: 09/26/2023 End: 10/18/2023


Northwest Pipeline will send out reminder notices specific to 
each project before they begin. 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.