Plasma and Corona Compressor Station Maintenance 04-07-26 Update 2

04-07-2026 15:45:00

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System Wide Notice Detail

TSP Name:

EQUITRANS, L.P.

TSP:

189569585

Post Date/Time:

Tue Apr 07 15:45:00 GMT 2026

Subject:

Plasma and Corona Compressor Station Maintenance 04-07-26 Update 2

Notice Type:

PLANNED SERVICE OUTAGE/CAPACITY CONSTRAINT

Notice ID:

137426

Prior Notice:

137339

137339

Notice Status Desc:

Supersede

Critical Desc:

Critical Notice

Notice Eff Date:

04-07-2026

Notice Eff Time:

15:45:00

Notice End Date:

07-31-2026

Notice End Time:

00:00:00

Required Response Indicator Description:

NO RESPONSE REQUIRED

Notice Text:

Equitrans L.P. is providing notice that the Corona Compressor Station maintenance has been completed. The Plasma Compressor Station
maintenance is ongoing and continuing through April 09, 2026, Gas Day.

Equitrans L.P. will be performing maintenance at its Plasma and Corona Compressor Stations in its Mainline Operational Area 2, Mainline
Operational Area 3 and Mainline Operational Area 4 beginning April 07, 2026, Gas Day and continuing through April 09, 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:

April 07, 2026, Gas Day: 600,000 Dths
April 08, 2026, Gas Day: 895,000 Dths
April 09, 2026, Gas Day: 895,000 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.

Additionally, in conjunction with this maintenance, Equitrans L.P. is requesting volumes flowing through the following Meters: #24564 (Curry),
#24562 (East Comet), #24490 (Pluto), #24622 (Harbert), #M5552986 (Sugarcamp), #24480 (McClellan), #24624 Morrison, and #M5514773
(Wilsonburg III) collectively not exceed 160,000 Dths for April 07, 2026, Gas Day. Nominations should be adjusted accordingly.

Lastly, in conjunction with this maintenance, customers may experience higher than normal pressures on the following pipelines in Mainline

04-07-2026 15:45:00

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Operational Area 2, Mainline Operational Area 3 and Mainline Operational Area 4:H-111, H-115, H-148, H-149, 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.

Equitrans L.P. will notify impacted parties of anticipated point specific volume reductions.

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.

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.