TSP Name: Adelphia Gateway
TSP: 081273189
Critical Notices
Notice Type Posted
Date/Time
Notice Effective
Date/Time
Notice
End
Date/Time
Notice
Identifier
Subject Response
Date/Time
Maintenance
Planned Service Outage
May 11, 2026
11:43:13 AM
May 13, 2026
09:00:00 AM
May 14, 2026
09:00:00 AM
963 Reminder Planned Service Outage Project 26.013  
Maintenance
Planned Service Outage
Apr 30, 2026
11:27:55 AM
May 13, 2026
09:00:00 AM
May 14, 2026
09:00:00 AM
957 Planned Service Outage Project 26.013  
TSP Capacity Offering
Mar 31, 2026
02:43:19 PM
Mar 31, 2026
09:00:00 AM

950 Results -Binding Open Season – NO. AG202603_OS001  
Rates and Charges
Mar 12, 2026
12:43:17 PM
Mar 12, 2026
09:00:00 AM

946 Proposed changes to currently approved TUP April 1 2026  
TSP Capacity Offering
Mar 12, 2026
08:56:23 AM
Mar 12, 2026
09:00:00 AM
Mar 20, 2026
02:00:00 PM
945 Reminder Adelphia Open Season AG202603_OS001  
Operational Flow Order
Pipeline Conditions
Mar 2, 2026
08:20:38 AM
Mar 3, 2026
09:00:00 AM

940 System Wide Operational Flow Order Terminated  
TSP Capacity Offering
Mar 2, 2026
07:49:29 AM
Mar 2, 2026
09:00:00 AM
Mar 20, 2026
02:00:00 PM
939 Adelphia Open Season AG202603_OS001  
Operational Flow Order
Pipeline Conditions
Feb 27, 2026
07:18:40 AM
Mar 1, 2026
09:00:00 AM

938 Adelphia System Wide OFO March 1 2026  
Operational Flow Order
Pipeline Conditions
Feb 26, 2026
09:13:51 AM
Feb 27, 2026
09:00:00 AM

937 Adelphia System Wide OFO Feb 27 2026  
Operational Flow Order
Pipeline Conditions
Feb 23, 2026
07:51:36 AM
Feb 24, 2026
09:00:00 AM

936 Adelphia System Wide OFO Feb 24 2026  
Maintenance
Pipeline Conditions
Feb 9, 2026
05:26:36 PM
Feb 9, 2026
09:00:00 AM

931 Unplanned Maintenance - Marcus Hook Compressor Station COMPLETE  
Operational Flow Order
Pipeline Conditions
Feb 9, 2026
09:16:56 AM
Feb 10, 2026
09:00:00 AM

930 System Wide Operational Flow Order Terminated  
Maintenance
Pipeline Conditions
Feb 8, 2026
10:44:00 AM
Feb 8, 2026
09:00:00 AM

928 Unplanned Maintenance - Marcus Hook Compressor Station  
Location Change
Pipeline Conditions
Feb 4, 2026
08:36:18 AM
Feb 4, 2026
09:00:00 AM
Feb 7, 2026
09:00:00 AM
927 Displacement Operating Capacity TETCO Quakertown and West Rockhill  
Operational Flow Order
Pipeline Conditions
Feb 2, 2026
04:15:15 PM
Feb 3, 2026
09:00:00 AM

926 System Wide Operational Flow Order Update  
Pipeline Conditions
Scheduling Alert
Jan 30, 2026
08:22:26 AM
Jan 30, 2026
09:00:00 AM

924 Operating Conditions – Transco Ridge Update 1  
Operational Flow Order
Rates and Charges
Jan 26, 2026
03:51:55 PM
Jan 26, 2026
09:00:00 AM

923 System Wide OFO- Increased Penalty Rate for Non-compliance  
Capacity Constraint
Pipeline Conditions
Jan 25, 2026
03:19:10 PM
Jan 26, 2026
09:00:00 AM

921 Operating Conditions – Displacement Operating Capacity, TETCO Quakertown  
Operational Flow Order
Pipeline Conditions
Jan 25, 2026
01:41:14 PM
Jan 25, 2026
09:00:00 AM

920 Courtesy Notice: Reminder of Active System Wide OFO  
Operational Flow Order
Pipeline Conditions
Jan 23, 2026
06:45:23 AM
Jan 24, 2026
09:00:00 AM

919 System Wide Operational Flow Order Effective January 24, 2026  
Pipeline Conditions
Scheduling Alert
Jan 20, 2026
12:08:38 PM
Jan 20, 2026
09:00:00 AM

918 Operating Conditions – Transco Ridge  
Operational Alert
Other
Jan 20, 2026
07:19:26 AM
Jan 21, 2026
09:00:00 AM

916 Adelphia Action Alert: Effective January 21, 2026  
Operational Alert
Other
Jan 14, 2026
06:19:21 AM
Jan 15, 2026
09:00:00 AM

914 Adelphia Action Alert: Effective January 15, 2026  
Operational Alert
Other
Jan 9, 2026
07:43:12 AM
Jan 10, 2026
09:00:00 AM

913 Adelphia Action Alert: Effective January 10, 2026  
Operational Alert
Other
Dec 30, 2025
04:12:36 PM
Jan 1, 2026
09:00:00 AM
Jan 6, 2026
09:00:00 AM
909 Adelphia Action Alert: Effective January 1, 2026  
Operational Alert
Other
Dec 30, 2025
03:55:33 PM
Dec 30, 2025
09:00:00 AM
Dec 30, 2025
12:00:00 AM
908 Adelphia Action Alert: Effective January 1,2026 TERMINATED  
Operational Alert
Other
Dec 30, 2025
01:18:08 PM
Jan 1, 2026
09:00:00 AM
Jan 6, 2026
09:00:00 AM
907 Adelphia Action Alert: Effective January 1,2026  
Operational Alert
Other
Dec 29, 2025
07:41:36 AM
Dec 30, 2025
09:00:00 AM
Jan 1, 2026
09:00:00 AM
905 Adelphia Action Alert: Effective December 30 2025  
Operational Alert
Other
Dec 22, 2025
07:45:44 AM
Dec 23, 2025
09:00:00 AM

903 Adelphia Action Alert: Effective December 23 2025  
Operational Alert
Other
Dec 18, 2025
03:39:23 PM
Dec 20, 2025
09:00:00 AM
Dec 23, 2025
09:00:00 AM
902 Adelphia Action Alert: Effective December 20 2025  
Operational Alert
Other
Dec 8, 2025
07:04:13 AM
Dec 8, 2025
09:00:00 AM

897 Adelphia Action Alert: Effective December 9 2025  
Operational Alert
Other
Dec 5, 2025
07:43:44 AM
Dec 5, 2025
09:00:00 AM

895 Adelphia Action Alert: Effective December 6 2025  
Operational Alert
Other
Dec 1, 2025
07:48:30 AM
Dec 1, 2025
09:00:00 AM

894 Adelphia Action Alert: Effective December 2 2025  
Operational Alert
Other
Nov 19, 2025
07:39:57 AM
Nov 19, 2025
09:00:00 AM

890 Adelphia Action Alert: Effective November 20, 2025  
Operational Alert
Other
Nov 14, 2025
07:05:43 AM
Nov 14, 2025
09:00:00 AM

887 Adelphia Action Alert: Effective November 15, 2025  
Operational Alert
Other
Nov 7, 2025
08:07:07 AM
Nov 7, 2025
09:00:00 AM

885 Adelphia Action Alert: Effective November 10, 2025  
Operational Alert
Other
Nov 7, 2025
07:49:04 AM
Nov 7, 2025
09:00:00 AM

884 Adelphia Action Alert: Effective November 8, 2025  
Operational Alert
Other
Phone List
Oct 30, 2025
07:53:25 AM
Oct 30, 2025
09:00:00 AM

881 Adelphia Action Alert: Effective November 1, 2025  
Operational Alert
Other
Phone List
Oct 27, 2025
08:48:41 AM
Oct 27, 2025
09:00:00 AM

879 Adelphia Action Alert: Effective October 27, 2025  
Other
Phone List
Oct 23, 2025
06:15:01 PM
Oct 23, 2025
09:00:00 AM

878 Adelphia Action Alert: Effective October 25, 2025  
Other
Phone List
Oct 16, 2025
03:27:15 PM
Oct 16, 2025
09:00:00 AM

876 Adelphia Action Alert: Effective October 18, 2025  
Maintenance
Other
Oct 15, 2025
02:58:11 PM
Oct 15, 2025
09:00:00 AM

875 Adelphia Planned Maintenance Project 25.035 - COMPLETE  
Maintenance
Planned Service Outage
Sep 26, 2025
04:02:40 PM
Oct 14, 2025
09:00:00 AM

860 Adelphia Planned Maintenance Project 25.035