Plasma Compressor Station Maintenance 10-04-26 Update

09-16-2026 16:36:00

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System Wide Notice Detail

TSP Name:

EQUITRANS, L.P.

TSP:

189569585

Post Date/Time:

Wed Sep 16 16:36:00 GMT 2026

Subject:

Plasma Compressor Station Maintenance 10-04-26 Update

Notice Type:

CAPACITY CONSTRAINT/PLANNED SERVICE OUTAGE

Notice ID:

138107

Prior Notice:

138106

138106

Notice Status Desc:

Supersede

Critical Desc:

Critical Notice

Notice Eff Date:

09-16-2026

Notice Eff Time:

16:36:00

Notice End Date:

12-31-2026

Notice End Time:

23:59:59

Required Response Indicator Description:

NO RESPONSE REQUIRED

Notice Text:

Equitrans L.P. is providing notice of an update for upcoming maintenance at its Plasma Compressor Station, previously scheduled to begin Monday,
October 05, 2026. This maintenance is now scheduled to begin Sunday, October 04, 2026.

Equitrans L.P. will be performing maintenance at its Plasma Compressor Station in its Mainline Operational Area 3 beginning October 04, 2026,
Gas Day and continuing through October 11, 2026, Gas Day.

In conjunction with this maintenance, Operationally Available Capacity through the Plasma_OVC Meter will be reduced to the following Net
Delivered Operational Capacities:

October 04, 2026, Gas Day: 905,000 Dths
October 05, 2026, Gas Day: 905,000 Dths
October 06, 2026, Gas Day: 905,000 Dths
October 07, 2026, Gas Day: 780,000 Dths
October 08, 2026, Gas Day: 780,000 Dths
October 09, 2026, Gas Day: 780,000 Dths
October 10, 2026, Gas Day: 905,000 Dths
October 11, 2026, Gas Day: 905,000 Dths

Scheduled Quantities will be adjusted to not exceed this amount. This amount is based on projected operating conditions and is subject to change.

Net Delivered Dths are calculated by netting Receipt and Delivery Scheduled Quantities at the Plasma _OVC Meter listed above.

09-16-2026 16:36:00

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Nominations will be scheduled in accordance with Section 6.8 of the General Terms and Conditions of Equitrans’ FERC Gas Tariff. Intraday
nomination changes may be permitted should the actual outage timeframe or level of impact differ from the estimates stated in this notification.

In addition, Customers may experience higher than normal pressures on the following pipelines in Mainline Operational Area 3 and Mainline
Operational Area 4: H-302, H-306, H-310, GSF-912, GSF-993, H-557, GSF-604, H-527, H-515, H-518, H-511, H-509, and H-508.

Customers should monitor Equitrans’ Informational Postings Website for updates to this notice and applicable posted Operationally Available
Capacity.

*This data represents data available within the last 3 months. For prior data to this time period, please contact your customer service representative.