TSP: 006968077 TSP Name: ENABLE MISSISSIPPI RIVER TRANSMISSION, LLC Critical Notice Description: Critical notice Notice Effective Date: 11/22/2022 Notice Effective Time: 09:00 Notice End Date: 00/00/0000 Notice End Time: 00:00 Notice Identifier: 4404 Notice Status Description: Initiate Notice Type: Operational Alert Posting Date/Time: 11/21/2022 08:19 Required Response Indicator Description: No response required Response Date: Response Time: Subject: HIGH UTILIZATION SPW TERMINATE Notice Text: New Information Posted November 21st, 2022 The System Protection Warning (#4401) will be lifted and terminated effective 9:00 a.m. Tuesday, November 22nd, 2022. Shippers should continue to monitor their imbalances. Interruptible non-ratable services and the use of imbalance positions must continue to be pre-approved. Previous Information Posted November 16th, 2022 Due to the potential for maximum utilization of northbound firm Main Line capacity causing a potential supply deficiency in the Market Zone, MRT is issuing a System Protection Warning (SPW) effective 9:00 a.m. Thursday, November 17th, 2022 and continuing until further notice. Just a reminder, MRT also has Unplanned Mainline Maintenance posted in Critical Notice #4396. During this time: 1) MRT may not schedule any IT or AOR volumes for delivery north of Glendale. 2) Firm volumes may be limited to their primary direction of flow on the system north of Glendale. 3) MRT may not schedule volumes that result in a daily short position in either the Market or Field Zones. 4) The use of imbalance positions may not be scheduled. 5) Pool transfers will not be permitted from MRT s Field Zone to its Market Zone. 6) Shippers with primary delivery points north of the Glendale Compressor station and a receipt point that utilizes South to North transportation, will be required to nominate and source all, or a portion of, their total nomination at primary receipt points and/or at available Market Zone supply locations, not to exceed applicable maximum receipt point quantities in order to support their primary deliveries. 7) Shippers whose firm transportation contracts have Texas Gas Boardwalk ( Boardwalk ) and/or EGT Olyphant ( Olyphant ) and/or Noark listed as primary receipt points, must schedule the full amount of their primary receipt point quantity at each of those points or, if the primary receipt point is Boardwalk and/or Olyphant, at an alternative Main Line receipt point that is north of the primary receipt point (Olyphant and/or Noark) if they desire to fully utilize their contract MDQ. Shippers may elect to forego nominating their full primary receipt point quantity at any/all of these points, however, such Shipper s maximum scheduled and confirmed contract quantity shall be limited to their contract MDQ less any primary receipt point quantity at Boardwalk and/or Olyphant and/or Noark that is not scheduled and confirmed. Shippers whose deliveries are affected by any of the Seven (7) conditions above are encouraged to source supply at their primary receipt points, MRT s East Line, Madison Line, MoGas, or reduce applicable delivery volumes. Failure to comply with this SPW may result in Shippers being issued an individual OFO. Nominations will be confirmed and scheduled in accordance with MRT s Tariff. This SPW will be updated as more information becomes available. If you have any questions concerning this SPW, please contact your Customer Solutions representative. For a more readable version of this document click Here