MRT Non-Critical Notice

Notice ID: 54151
Notice Type: PSO
Critical: N
Notice Status Description:
Reqrd Rsp Desc: No Response Required
Response Date/Time:
Posting Date/Time: 2025-06-18 10:00:00.0
Subject: Planned Service Outages [June 2025 Calendar]
Notice Effective Date/Time: 2025-06-18 10:00:00.0
Notice End Date/Time: 2025-09-21 00:00:00.0
Notice Text:

Start Date

End Date

Title

Location

Maintenance

Impact

Notice ID

6/1/2025

7/30/2025

Generator Fuel Re-pipe

West Point

Regular Maintenance

1

6/1/2025

7/30/2025

West Point Annual Maintance

West Point

Regular Maintenance

1

6/5/2025

7/6/2025

Unionville dehy maintenance on units 1-2-3-4.

Pipe - Unionville

Other

1

6/10/2025

6/30/2025

Arnold Tap Valves

MMAR

Other

1

6/16/2025

6/30/2025

Perryville #6 Top End Work

Perryville

Regular Maintenance

1

6/19/2025

6/20/2025

ML2 Black River to Lake Wappapelo

Pipe - Biggers

Cleaning Pig

1

6/23/2025

6/27/2025

ML2 Cleaning and ILI tool Run Ft. Hill to Perryville

Pipe - Fountain Hill

ILI Pigging Project

1

6/24/2025

6/25/2025

T-18 pig run

Pipe - St Jacob

Cleaning Pig

1

6/24/2025

6/26/2025

Turbine Borescope Biggers and Tuckerman

Tuckerman

Other

1

6/30/2025

8/8/2025

ML3 Hydrotest

Pipe - Twelve Mile

Integrity Work

1

7/1/2025

7/16/2025

Perryville #1 Top End Work

Perryville

Regular Maintenance

1

7/7/2025

9/7/2025

St Jacob Storage Field-Launcher Mods/Flow Control Valves

Pipe - St Jacob

Other

1

7/14/2025

8/11/2025

Arnold M&R Tap Valves

Bonne Terre

Pipe Replacement

1

7/14/2025

8/8/2025

ML3 Hydrotest – Pressure test from Station 472+98 to 546+23

 Pipe - Twelve Mile

Integrity Work

1

8/4/2025

9/5/2025

Air Starters on Units 6&8

 Fountain Hill Station

Other

1

8/11/2025

9/19/2025

ML2 and ML3 Valve installation

Popular Bluff

Other

1

10/13/2025

10/18/2025

Meramec River HDD

Bonne Terre

Pipe Replacement

1

10/14/2025

10/15/2025

Pigging A-142

 Pipe - Buckley

Cleaning Pig

1

10/21/2025

10/22/2025

Westline Dixie to Red River and River Crossings

 Pipe - Buckley

Cleaning Pig

1

10/22/2025

10/23/2025

Westline Red River to MP51 pigging

 Pipe - Buckley

Cleaning Pig

1

10/22/2025

10/31/2025

Unionville EOS Shut in

Unionville

Annual Maintenance

1

1.  No capacity impact is expected at this time.

2.  Coordinating with necessary loads.

3.  Based on historical and current throughput, no capacity impact is expected.  In the event nominations increase significantly, restrictions may become necessary.

4.  Coordinating maintenance with interconnecting pipe to minimize customer impact.  No capacity impact is expected at this time; however, if operating conditions change, affected parties will be notified.

5.  Affected production notified of shut-in during work.

6.  Customers may experience pressure fluctuations, but no capacity impact is anticipated.

7.  Based upon customer nominations, restrictions may become necessary.

8.  Based on all available information, capacity will be impacted.  Capacity reductions will be done in accordance with the provisions of MRT's tariff regarding scheduling and interruption of services.