TSP Name: Northwest Pipeline LLC TSP: 67977322
Critical: Y
Notice Stat Desc: INITIATE
Notice Type Desc: MAINTENANCE
Post D/T: 09/12/2023 1:13 PM MCT
Notice Eff D/T: 09/12/2023 1:13 PM MCT
Notice End D/T:
Reqrd Rsp Desc: No response required
Rsp D/T:
Notice ID: 23-187
Prior Notice:
Subject: Vernal Corridor Hydrotest - Maintenace Update/Reminder
Notice Text:
As posted in the maintenance schedule on Northwest Pipeline's website, Northwest is performing a hydrotest in the Vernal District beginning September 14, 2023 through September 23, 2023. As a reminder, Clay Basin will also be shut in from Northwest Pipeline for the duration of this outage.
During this outage, Northwest will not be able to schedule nominations that are net greater than 0 Dth/d northbound at the Vernal Compressor Station or net greater than 0 Dth/d southbound at the Green River South Constraint.
If the primary scheduled quantities during this outage exceed the operationally available capacity of 0 Dth/d northbound at the Vernal Compressor Station or 0 Dth/d southbound at the Green River South Constraint (or whatever NWP cannot mitigate during any day of the maintenance), pursuant to Sections 10.2 and 10.3 of Rate Schedule TF-1 in Northwest's Tariff, Northwest will give notice of a Declared Deficiency Period based the Vernal Compressor Station northbound design capacity of 353,000 Dth/d and the Green River South Constraint southbound design capacity of 378,617. The deficiency period will continue until the work is completed on September 23, 2023.
Northwest’s balancing flexibility during this period will be extremely limited and the current Stage II (8%) Underrun Entitlement North of Kemmerer remains active. Northwest encourages its shippers to diligently manage natural gas deliveries to ensure that they are in-line with customers’ takes to avoid leaving excess gas on the system. Northwest appreciates customer support during this upcoming period and will provide system updates based on changing operating conditions as needed.
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.
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