Northwest Pipeline LLC NOTICE #28587 Operational Emergency posted on Oct 10 2018 3:13AM TSP Name: Northwest Pipeline LLC TSP: 67977322 Critical: Y Notice Stat Desc: SUPERSEDE Notice Type Desc: OPERATIONAL ALERT Post D/T: 10/10/2018 3:13 AM MCT Notice Eff D/T: 10/10/2018 3:13 AM MCT Notice End D/T: Reqrd Rsp Desc: Immediate response required of an operational nature may be required of impacted shippers Rsp D/T: 10/10/2018 3:13 AM Notice ID: 18-100 Prior Notice: 18-099 Subject: Operational Emergency Notice Text: All Shippers Letter # 18-100 Supercedes Notice 18-099 Date: October 10, 2018 Time: TO: All Shippers SUBJECT: Operational Emergency Pursuant to West Coast Energy Inc, BC Pipeline ("West Coast") notice #50881 in which a Force Majeure situation was declared, Northwest is taking measures to protect the integrity of its system pursuant to Section 10 of Northwest's FERC Gas Tariff. To the extent West Coast cuts the gas at Sumas, Northwest will pass corresponding cuts to the delivery points. Northwest requests all customers to take immediate action to reduce loads on the system. Updates will be made as soon as they are available. If you have any questions, please contact your Marketing Services representative or the Scheduling Hotline at (801) 584-7301. NWP GV/MR