MRT Non-Critical Notice

Notice ID: 62281
Notice Type: PSO
Critical: N
Notice Status Description:
Reqrd Rsp Desc: No Response Required
Response Date/Time:
Posting Date/Time: 2026-03-11 14:17:00.0
Subject: Planned Service Outages [March 2026 Calendar]
Notice Effective Date/Time: 2026-03-11 14:17:00.0
Notice End Date/Time: 2026-06-12 00:00:00.0
Notice Text:

Start Date

End Date

Title

Location

Maintenance

Impact

SPW

2/26/2026

3/12/2026

ML2 Red River to Burksville

?Pipe - Columbia

Other

1

3/2/2026

4/1/2026

Bismark M&R Upgrade

Bismark Town Border

RTU Installation

1

3/2/2026

TBD

Alton Loop East Digs

?Pipe - Columbia

Digs

4

61902

3/6/2026

3/11/2026

Carlisle Unit 6 Fuel Regulator

Carlisle Compressor

Compressor Maintenance

1

3/9/2026

3/13/2026

Carlisle Unit 4 Fuel Regulator

Carlisle Compressor

Compressor Maintenance

1

3/11/2026

3/11/2026

Westline Red River to MP51

Westline

Pigging

1

3/12/2026

3/17/2026

ML2+3 AC coupon install

?Pipe - Perryville

Digs

1

3/17/2026

3/17/2026

22" ML2 Mississippi River to Columbia M&R ILI

?Pipe - Columbia

Cleaning Pig

1

3/19/2026

3/19/2026

22" ML2 Mississippi River to Columbia M&R ILI - HR Combo

?Pipe - Columbia

ILI Pigging Project

1

3/23/2026

4/13/2026

Perryville Unit 5 PLC Upgrade

Perryville Compressor

Other

1

4/6/2026

4/20/2026

ML3 Pipe Replacement and MLV Pressure Test

Pipe - Fountain Hill

Pipe Replacement

3

4/6/2026

4/6/2026

ML2 Cleaning Pigs Glendale to Carlisle

?Pipe - Glendale

Cleaning Pig

1

4/7/2026

4/7/2026

ML3 Cleaning Pigs Glendale to Carlisle

?Pipe - Glendale

Cleaning Pig

1

5/11/2026

5/18/2026

?Installing Ring Gear on units #5&7

?Fountain Hill Compressor

Other

1

5/12/2026

5/12/2026

ML2 Cleaning Pigs Glendale to Ft. Hill

?Pipe - Glendale

Cleaning Pig

1

5/13/2026

5/13/2026

ML3 Cleaning Pigs Glendale to Ft. Hill

?Pipe - Glendale

Cleaning Pig

1

5/15/2026

5/30/2026

Unionville EOS Shut in

Unionville

Other

1

62470

5/19/2026

5/19/2026

10" IGT-1 Hill Creek - Hartford ILI - Cleaning & Gauge Tools

?Pipe - St Jacob

Cleaning Pig

1

5/20/2026

5/20/2026

ML2 cleaning Pigs Ft. Hill to Perryville

?Pipe - Fountain Hill

Cleaning Pig

1

5/21/2026

5/21/2026

10" IGT-1 Hill Creek - Hartford ILI ? HR Combo

?Pipe - St Jacob

ILI Pigging Project

1

5/21/2026

5/21/2026

ML3 Cleaning Pigs Ft. Hill to Perryville

?Pipe - Fountain Hill

Cleaning Pig

1

5/22/2026

5/23/2026

WESTLINE CLEANING PIGS UNIONVILLE TO PERRYVILLE

?Pipe - Unionville

Cleaning Pig

1

7/14/2026

7/14/2026

18x20x22" ALLN A-75 to Horseshoe Lake ILI - GEO

?Pipe - Columbia

ILI Pigging Project

1

7/16/2026

7/16/2026

18x20x22" ALLN A-75 to Horseshoe Lake ILI ? MFL

?Pipe - Columbia

ILI Pigging Project

1

12/1/2026

12/2/2026

ML2 Class Location Relay

?Pipe - Twelve Mile

Pipe Replacement

1

12/1/2026

12/2/2026

ML1 Joachim Creek HDD

?Bon Terre Tower

Pipe Replacement

1

12/1/2026

12/2/2026

Meramec Receiver Barrel & Piping Modifications

?Pipe - Bonne Terre

Pipe Replacement

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.