Tennessee Gas Pipeline Notice 398840

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

Seven Day Forecast (updated 01/29/26)

-Minor impact restrictions may be necessary depending on flow conditions

-Little to no impact, though minor outages may cause incremental reductions

Station / Seg

Est Nominal

Operating Capacity (Thousand Dth)

Monday

(2/2)

Tuesday

(2/3)

Wednesday

(2/4)

Thursday

(2/5)

Friday

(2/6)

Saturday

(2/7)

Sunday

(2/8)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409

(Donna Line) (segment 490 FH)

585

585

585

585

585

585

585

585

Station 1

(segment 101 BH)

438

438

438

438

438

438

438

438

Station 9

(segment 109 FH)

1,022

1,022

1,022

1,022

1,022

1,022

1,022

385

(637)

MLV 9-1D TO MLV 17-1S: Pig Run - Chem Cleaning (M) (2/8/2026)

Station 25

(segment 125 FH)

1,101

1085

(16)

1085

(16)

1085

(16)

1085

(16)

1085

(16)

1085

(16)

1085

(16)

Sta 25: Unit 1C - VFD Replacement (7/16/2025 - 10/31/2026)

Station 40 South

(segment 139 FH)

1,659

1,659

1,659

1375

(284)

1375

(284)

1375

(284)

1375

(284)

1,659

MLV 36-1LAL to Sta 40-1S: Pig Run - Chem Cleaning (M) (2/4/2026) MLV 36-1LAL to Sta 40-1S: Pig Run - Chem Cleaning (M) (2/5/2026) MLV 36-1LAL to Sta 40-1S: Pig Run - Chem Cleaning (M) (2/6/2026)

MLV 36-1LAL to Sta 40-1S: Pig Run - Chem Cleaning / Gauge (M) (2/7/2026)

Station 47

(segment 143 FH)

1,354

1349

(5)

1349

(5)

1349

(5)

1349

(5)

1349

(5)

1349

(5)

1349

(5)

MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 3/16/2026)

Station 63

(segment 163 FH)

1,287

1,287

1,287

1,287

1,287

1,287

1,287

1,287

Station 823

(segment 823 BH)

759

725

(34)

725

(34)

725

(34)

725

(34)

725

(34)

725

(34)

725

(34)

Sta 823: Unit 11A - Jacket Water Pump (1/6/2026 - 3/23/2026)

Station 534 South of Pool (segment 530 BH)

1,632

1400

(232)

1400

(232)

1400

(232)

1400

(232)

1400

(232)

1400

(232)

1400

(232)

Sta 530: Unit 1A - Bearings (8/25/2025 - 3/31/2026) Sta 530: Unit 2A - Bearings (8/26/2025 - 3/31/2026)

Sta 530: Unit 3A - Crankshaft Replacement (6/9/2025 - 12/31/2026) Sta 530: Unit 5A - Top-End Overhaul (6/9/2025 - 12/31/2026)

Sta 530: Unit 6A - Bearings (10/6/2025 - 3/31/2026) Sta 530: Unit 7A - Bearings (10/6/2025 - 3/31/2026)

Sta 534: Unit 6A - Piston Liner & Unloader Replacements (3/25/2025 -

3/27/2026)

MLV 548

(segment 542 BH)

1,771

1750

(21)

1750

(21)

1750

(21)

1750

(21)

1750

(21)

1750

(21)

1750

(21)

Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 2/27/2026)

Station 860

(segment 548 BH)

1,697

1,697

1,697

1,697

1,697

1,697

1,697

1,697

Station 860 North (Segment 860

BH)

2,028

1935

(93)

1935

(93)

1935

(93)

1935

(93)

2000

(28)

2000

(28)

2000

(28)

MLV 861-1 to MLV 861-1A: Crossover Valve Replacement (1/13/2026 - 2/5/2026)

Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 -

12/31/2026)

Station 110

(segment 187 BH)

(south thru Kentucky)

2,775

2617

(158)

2468

(307)

2480

(295)

2535

(240)

2629

(146)

2629

(146)

2629

(146)

MLV 102-1A1 to MLV 102-1A: Pipe Replacement (1/20/2026 - 2/13/2026) MLV 90-3 to MLV 91-3: HDD River Crossing Replacement (1/24/2026 - 2/3/2026)

Sta 106: Unit 1C - Replace Power Cylinder Bearing #9 (11/24/2025 - 2/27/2026)

Sta 106: Unit 2D - 8K Solar Turbine Inspection (2/3/2026 - 2/5/2026) Sta 871: Unit 1A - 1Q Engine Inspection (2/4/2026)

Sta 871: Unit 2A - 1Q Engine Inspection (2/3/2026)

Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 3/16/2026)

Station 114

(segment 114 BH)

948

948

948

948

948

948

948

948

Station 204

(Segment 204 BH)

1,895

1797

(98)

1750

(145)

1797

(98)

1750

(145)

1797

(98)

1,895

1,895

MLV 204-1 to MLV 209-1: Pig Run - Cal/IMU (2/5/2026) MLV 204-1 to MLV 209-1: Pig Run - Gauge (2/3/2026)

Sta 200: Unit 1B - GHG Maintenance (2/2/2026 - 2/6/2026)

Station 245

(segment 245 FH)

1,053

1,053

1008

(45)

1,053

1,053

1,053

1,053

1,053

Sta 241: Unit 2B - 2K Maintenance (2/3/2026)

Station 261 Discharge East (segment 261

FH)

1,035

1,035

1,035

1,035

1,035

1,035

1,035

1,035

Station 267 South (segment 266

FH)

493

336

(157)

336

(157)

336

(157)

336

(157)

336

(157)

336

(157)

336

(157)

Sta 267: Bldg A Controls Upgrade (9/2/2025 - 2/13/2026)

Station 307

(segment 307 BH)

1,202

1,202

1,202

1,202

1,202

1,202

1,202

1,202

Station 315

(segment 315 BH)

1,915

1,915

1,915

1,915

1,915

1,915

1,915

1,915

MLV 324

(segment 324 FH)

1,885

1,885

1,885

1,885

1,885

1,885

1,885

1,885

Station 405 HC Line (segment 299

FH)

817

817

817

817

817

817

817

817

This document is updated on a weekly basis and outage schedules/impacts are subject to change as the week progresses.

Dates posted on DART should be deemed correct in the event of conflicts between DART posted dates and dates on this report.

The impacts sheet are based on steady-state hydraulic models assuming recent operating flows, conditions, and various unit outages.

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

February 2026 (updated 01/29/26)

-Minor impact restrictions may be necessary depending on flow conditions

-Little to no impact, though minor outages may cause incremental reductions

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(2/2 - 2/8)

Week 2

(2/9 - 2/15)

Week 3

(2/16 - 2/22)

Week 4

(2/23 - 3/1)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490

FH)

585

585

585

585

Station 1

(segment 101 BH)

438

160

(278)

438

438

MLV 404-2A to MLV 405-2: Pipe Replacement (2/11/2026 - 2/12/2026)

Station 9

(segment 109 FH)

1,022

385

(637)

385

(637)

1,022

MLV 9-1D TO MLV 17-1S: Pig Run - Chem Cleaning (M) (2/9/2026) MLV 9-1D TO MLV 17-1S: Pig Run - Chem Cleaning / Gauge (M) (2/11/2026)

MLV 9-1D TO MLV 17-1S: Pig Run - EMAT (M) (2/18/2026) MLV 9-1D TO MLV 17-1S: Pig Run - MFL-A (M) (2/14/2026) MLV 9-1D TO MLV 17-1S: Pig Run - MFL-C (M) (2/16/2026)

Station 17

(segment 117 FH)

1,143

1,143

1,143

1125

(18)

MLV 19-2 TO MLV 20-2A: Pipe Replacement (M) (3/1/2026 - 4/30/2026)

Station 25

(segment 125 FH)

1,101

1085

(16)

1085

(16)

1085

(16)

MLV 26-1 Relocation: Highway 59 Widening (2/20/2026 - 3/14/2026) MLV 26-1 to MLV 27-1: Install Road Casing (2/20/2026 - 3/14/2026)

Sta 25: Unit 1C - VFD Replacement (7/16/2025 - 10/31/2026)

Station 40 South

(segment 139 FH)

1,659

1300

(359)

1,659

1,659

MLV 36-1LAL to Sta 40-1S: Pig Run - AFD Combo (M) (2/10/2026) MLV 36-1LAL to Sta 40-1S: Pig Run - EMAT (M) (2/12/2026)

Sta 40: ESD Panel Install (2/9/2026)

Station 47

(segment 143 FH)

1,354

1349

(5)

1349

(5)

1349

(5)

MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 3/16/2026)

Station 63

(segment 163 FH)

1,287

1,287

1,287

1,287

Station 823

(segment 823 BH)

759

725

(34)

725

(34)

725

(34)

Sta 823: Unit 11A - Jacket Water Pump (1/6/2026 - 3/23/2026)

Station 847

(segment 847 BH)

338

200

(138)

338

338

MLV 856-1 to MLV 860-1: Pig Runs - Cleaning / Gauge 2/10/26 (2/10/2026) MLV 856-1 to MLV 860-1: Pig Runs - EMAT 2/12/26 (2/12/2026)

Station 534 South of Pool (segment 530 BH)

1,632

1400

(232)

1400

(232)

1400

(232)

Sta 530: Unit 1A - Bearings (8/25/2025 - 3/31/2026) Sta 530: Unit 2A - Bearings (8/26/2025 - 3/31/2026)

Sta 530: Unit 3A - Crankshaft Replacement (6/9/2025 - 12/31/2026) Sta 530: Unit 5A - Top-End Overhaul (6/9/2025 - 12/31/2026)

Sta 530: Unit 6A - Bearings (10/6/2025 - 3/31/2026) Sta 530: Unit 7A - Bearings (10/6/2025 - 3/31/2026)

Sta 534: Unit 6A - Piston Liner & Unloader Replacements (3/25/2025 -

3/27/2026)

MLV 548

(segment 542 BH)

1,771

1750

(21)

1750

(21)

1750

(21)

Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 2/27/2026)

Station 860

(segment 548 BH)

1,697

1,697

975

(722)

975

(722)

MLV 555-2 to MLV 559-2: Pig Runs - CAL / IMU 2/19/26 (2/19/2026)

MLV 555-2 to MLV 559-2: Pig Runs - Cleaning / Gauge 2/17/26 (2/17/2026) MLV 555-2 to MLV 559-2: Pig Runs - EMAT 2/26/26 (2/26/2026)

MLV 555-2 to MLV 559-2: Pig Runs - MFL-C 2/24/26 (2/24/2026)

Station 860 North (Segment 860

BH)

2,028

2000

(28)

2000

(28)

2000

(28)

Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2026)

Station 110

(segment 187 BH)

(south thru

Kentucky)

2,775

2629

(146)

2391

(384)

2645

(130)

MLV 102-1A1 to MLV 102-1A: Pipe Replacement (1/20/2026 - 2/13/2026) MLV 87-4 to MLV 96-4: Pig Re-Runs - EMAT 2/18/26 (M) (2/18/2026)

Sta 106: Unit 1C - Replace Power Cylinder Bearing #9 (11/24/2025 - 2/27/2026) Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 3/16/2026)

Station 114

(segment 114 BH)

948

845

(103)

948

948

Sta 119A: Unit 1A - Solar Turbine Inspection (2/10/2026)

Station 204

(Segment 204 BH)

1,895

1823

(72)

1,895

1,895

MLV 204-1 to MLV 209-1: Pig Run - EMAT (2/12/2026) MLV 204-1 to MLV 209-1: Pig Run - MFL-C (2/10/2026)

Station 245

(segment 245 FH)

1,053

1008

(45)

1,053

1,053

Sta 241: Unit 1B - 2K Maintenance (2/10/2026)

Station 261 Discharge East (segment 261

FH)

1,035

1,035

1,035

1,035

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

February 2026 (updated 01/29/26)

-Minor impact restrictions may be necessary depending on flow conditions

-Little to no impact, though minor outages may cause incremental reductions

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(2/2 - 2/8)

Week 2

(2/9 - 2/15)

Week 3

(2/16 - 2/22)

Week 4

(2/23 - 3/1)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 267 South (segment 266

FH)

493

336

(157)

493

493

Sta 267: Bldg A Controls Upgrade (9/2/2025 - 2/13/2026)

Station 307

(segment 307 BH)

1,202

1,202

1,202

1,202

Station 315

(segment 315 BH)

1,915

1,915

1,915

1,915

MLV 324

(segment 324 FH)

1,885

1,885

1,885

1,885

Station 405 HC Line (segment 299

FH)

817

817

817

817

This document is updated on a weekly basis and outage schedules/impacts are subject to change as the week progresses.

Dates posted on DART should be deemed correct in the event of conflicts between DART posted dates and dates on this report.

The impacts sheet are based on steady-state hydraulic models assuming recent operating flows, conditions, and various unit outages.

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

March 2026 (updated 01/29/26)

-Minor impact restrictions may be necessary depending on flow conditions

-Little to no impact, though minor outages may cause incremental reductions

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(3/2 - 3/8)

Week 2

(3/9 - 3/15)

Week 3

(3/16 - 3/22)

Week 4

(3/23 - 3/29)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490

FH)

585

585

585

585

585

Station 1

(segment 101 BH)

438

438

438

438

438

Station 9

(segment 109 FH)

1,022

1,022

1,022

1,022

1,022

Station 17

(segment 117 FH)

1,143

1125

(18)

1125

(18)

1125

(18)

1125

(18)

MLV 19-2 TO MLV 20-2A: Pipe Replacement (M) (3/1/2026 - 4/30/2026)

Station 25

(segment 125 FH)

1,101

1085

(16)

1060

(41)

1060

(41)

1060

(41)

MLV 26-1 Relocation: Highway 59 Widening (2/20/2026 - 3/14/2026) MLV 26-1 to MLV 27-1: Install Road Casing (2/20/2026 - 3/14/2026) MLV 26-2 Relocation: Highway 59 Widening (3/15/2026 - 4/6/2026)

Sta 25: Unit 1C - VFD Replacement (7/16/2025 - 10/31/2026)

Station 40 South

(segment 132 FH)

1,299

1,299

1,299

1,299

1,299

MLV 32-1D to MLV 33-1: Anomaly Remediation (3/16/2026 - 3/27/2026)

Station 40 North

(segment 140 FH)

1,348

1,348

1,348

1,348

1,348

MLV 40-2D to MLV 42-2BR: Anomaly Remediation (3/23/2026 - 3/27/2026)

Station 47

(segment 143 FH)

1,354

1349

(5)

1349

(5)

1310

(44)

1035

(319)

MLV 43-3 to MLV 44-3: Anomaly Remediation (3/16/2026 - 3/21/2026) MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 3/16/2026)

Sta. 47: Unit 1D/2D - D Building - Unit Valve Install (3/23/2026 - 3/24/2026)

Sta. 47: Unit 1E - E Building - Unit Valve Install (3/25/2026)

Station 63

(segment 163 FH)

1,287

1,287

1,287

1,287

1,287

Station 823

(segment 823 BH)

759

725

(34)

725

(34)

725

(34)

725

(34)

Sta 823: Unit 11A - Jacket Water Pump (1/6/2026 - 3/23/2026)

Station 534 South of Pool (segment 530 BH)

1,632

1400

(232)

1400

(232)

1400

(232)

1400

(232)

Sta 530: Unit 1A - Bearings (8/25/2025 - 3/31/2026) Sta 530: Unit 2A - Bearings (8/26/2025 - 3/31/2026)

Sta 530: Unit 3A - Crankshaft Replacement (6/9/2025 - 12/31/2026) Sta 530: Unit 5A - Top-End Overhaul (6/9/2025 - 12/31/2026)

Sta 530: Unit 6A - Bearings (10/6/2025 - 3/31/2026) Sta 530: Unit 7A - Bearings (10/6/2025 - 3/31/2026)

Sta 534: Unit 6A - Piston Liner & Unloader Replacements (3/25/2025 -

3/27/2026)

MLV 548

(segment 542 BH)

1,771

1,771

1,771

1,771

1,771

Station 860

(segment 548 BH)

1,697

1680

(17)

1565

(132)

1420

(277)

1,697

MLV 550-1 to MLV 546-1: Pig Runs - CAL / IMU 3/12/26 (3/12/2026)

MLV 550-1 to MLV 546-1: Pig Runs - Cleaning / Gauge 3/10/26 (3/10/2026) MLV 550-1 to MLV 546-1: Pig Runs - EMAT 3/19/26 (3/19/2026)

MLV 550-1 to MLV 546-1: Pig Runs - MFL-C 3/17/26 (3/17/2026)

Sta 550: Unit 3A - Turbocharger Exchange (3/2/2026 - 3/20/2026)

Station 860 North (Segment 860

BH)

2,028

1715

(313)

2000

(28)

2000

(28)

2000

(28)

MLV 555-1L to MLV 558-1R: Anomaly Remediation (3/16/2026 - 4/3/2026) MLV 559-2 to MLV 565-2: Pig Run - EMAT (Re-run) (3/2/2026)

Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2026)

Station 110

(segment 187 BH)

(south thru Kentucky)

2,775

2246

(529)

2246

(529)

2600

(175)

2681

(94)

MLV 109--3: Crossover to Ln 4 Valve Replacements (3/2/2026 - 3/8/2026) MLV 109--3: Crossover to Ln 5 Valve Replacements (3/9/2026 - 3/15/2026) MLV 87-3 to MLV 96-3: Pig Run - AFD (3/5/2026)

MLV 87-3 to MLV 96-3: Pig Run - Cleaning/Gauge (3/3/2026) MLV 87-3 to MLV 96-3: Pig Run - EMAT (3/10/2026)

Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 3/16/2026)

Sta 96: Unit 1D - Compressor Valves (3/16/2026 - 4/3/2026)

Station 114

(segment 114 BH)

948

948

948

755

(193)

948

MLV 110-2 to MLV 114-2S: Pig Run - Gauge (3/17/2026) MLV 110-2 to MLV 114-2S: Pig Run - MFL-C (3/19/2026)

Station 204

(Segment 204 BH)

1,895

1,895

1762

(133)

1762

(133)

1,895

MLV 209-2 to MLV 214-2: Pig Run - Cal/IMU (3/12/2026) MLV 209-2 to MLV 214-2: Pig Run - EMAT (3/19/2026)

MLV 209-2 to MLV 214-2: Pig Run - Gauge/Cleaning (3/10/2026)

MLV 209-2 to MLV 214-2: Pig Run - MFL-C (3/17/2026)

Station 245

(segment 245 FH)

1,053

1,053

1,053

1,053

1,053

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

March 2026 (updated 01/29/26)

-Minor impact restrictions may be necessary depending on flow conditions

-Little to no impact, though minor outages may cause incremental reductions

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(3/2 - 3/8)

Week 2

(3/9 - 3/15)

Week 3

(3/16 - 3/22)

Week 4

(3/23 - 3/29)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 261 Discharge East (segment 261

FH)

1,035

1,035

1,035

1,035

1,035

Station 307

(segment 307 BH)

1,202

1,202

1,202

1,202

1,202

Station 315

(segment 315 BH)

1,915

1,915

1,915

1,915

1,915

MLV 324

(segment 324 FH)

1,885

1,885

1,885

1,885

1,885

Station 405 HC Line (segment 299

FH)

817

817

817

817

817

This document is updated on a weekly basis and outage schedules/impacts are subject to change as the week progresses.

Dates posted on DART should be deemed correct in the event of conflicts between DART posted dates and dates on this report.

The impacts sheet are based on steady-state hydraulic models assuming recent operating flows, conditions, and various unit outages.

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

April 2026 (updated 01/29/26)

-Minor impact restrictions may be necessary depending on flow conditions

-Little to no impact, though minor outages may cause incremental reductions

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(3/30 - 4/5)

Week 2

(4/6 - 4/12)

Week 3

(4/13 - 4/19)

Week 4

(4/20 - 4/26)

Week 5

(4/27 - 5/3)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490

FH)

564

564

564

564

564

564

Station 1

(segment 101 BH)

399

399

399

399

399

399

Station 9

(segment 109 FH)

969

969

969

900

(69)

969

969

MLV 9-3D to MLV 11-3: Pig Run - Cleaning (4/13/2026)

MLV 9-3D to MLV 11-3: Pig Run - Gauge (4/14/2026) MLV 9-3D to MLV 11-3: Pig Run - MFL-A (4/15/2026)

Station 17

(segment 117 FH)

1,122

1104

(18)

1104

(18)

1104

(18)

1104

(18)

1000

(122)

MLV 19-2 TO MLV 20-2A: Pipe Replacement (M) (3/1/2026 - 4/30/2026) MLV 19-3 TO MLV 20-3A: Pipe Replacement (M) (5/1/2026 - 6/29/2026)

Station 25

(segment 125 FH)

1,078

1005

(73)

830

(248)

830

(248)

830

(248)

830

(248)

MLV 26-2 Relocation: Highway 59 Widening (3/15/2026 - 4/6/2026)

MLV 26-3 Relocation: Highway 59 Widening (M) (4/7/2026 - 4/28/2026) Sta 25: Unit 1C - VFD Replacement (7/16/2025 - 10/31/2026)

Station 47

(segment 143 FH)

1,343

1,343

1025

(318)

1025

(318)

1,343

1,343

Sta 47: Unit 1E - Annual Turbine Maintenance (4/13/2026 - 4/16/2026) Sta. 47: Scrubber/Filter/Separator Cleaning/Inspection/Changeout (4/6/2026 -

4/10/2026)

Sta. 47: Unit 1D - 16K hour Overhaul (4/6/2026 - 4/17/2026)

Station 63

(segment 163 BH)

1,068

1,068

1,068

1,068

1012

(56)

1,068

MLV 79-4 to MLV 71-4D: Pig Runs - Cleaning / Gauge 4/14/26 (4/14/2026) MLV 79-4 to MLV 71-4D: Pig Runs - EMAT 4/23/26 (4/23/2026)

Station 63

(segment 163 FH)

1,242

1,242

1,242

957

(285)

1,242

1,242

Station 823

(segment 823 BH)

734

734

734

734

734

734

Station 834

(segment 834 BH)

683

683

683

670

(13)

683

683

Sta 834: Unit 4A - Replace Lubrication System (4/13/2026 - 4/17/2026)

Station 847

(segment 847 BH)

288

288

288

288

288

150

(138)

MLV 847-1 to MLV 851-1: Pig Runs - Cal / IMU & MFL-A 4/30/26 (4/30/2026)

MLV 847-1 to MLV 851-1: Pig Runs - Cleaning / Gauge 4/28/26 (4/28/2026)

MLV 516

Muskrat Line (segment 516 FH)

241

241

241

75

(166)

75

(166)

241

MLV 516 to Sta 523: Pig Run - Cleaning / Gauge 4/18/26 to 4/22/26 (M) (4/18/2026 - 4/22/2026)

MLV 516 to Sta 523: Pig Run - MFL-A 4/24/26 (M) (4/24/2026)

Station 534 South of Pool (segment 530 BH)

1,550

1528

(22)

1528

(22)

1528

(22)

1528

(22)

1528

(22)

Sta 530: Unit 1A - Bearings (8/25/2025 - 3/31/2026)

Sta 530: Unit 2A - Bearings (8/26/2025 - 3/31/2026)

Sta 530: Unit 3A - Crankshaft Replacement (6/9/2025 - 12/31/2026) Sta 530: Unit 5A - Top-End Overhaul (6/9/2025 - 12/31/2026)

Sta 530: Unit 6A - Bearings (10/6/2025 - 3/31/2026)

Sta 530: Unit 7A - Bearings (10/6/2025 - 3/31/2026)

MLV 548

(segment 542 BH)

1,647

1,647

1,647

1,647

1,647

1,647

Station 860

(segment 548 BH)

1,593

1,593

1,593

1,593

1435

(158)

1465

(128)

Sta 555 Collinwood: Annual ESD Test & Maintenance (4/21/2026 - 4/24/2026) Sta 555: Unit 1B - Protective Device Inspection (4/28/2026 - 4/29/2026)

Station 860 North (Segment 860 BH)

1,874

1846

(28)

1460

(414)

1540

(334)

1540

(334)

1846

(28)

MLV 555-1L to MLV 558-1R: Anomaly Remediation (3/16/2026 - 4/3/2026) Sta 563 Joelton: Annual ESD Test (4/8/2026 - 4/9/2026)

Sta 563 Joelton: Unit 1A - Lube Oil Varnish System Installation (4/6/2026 - 4/8/2026)

Sta 563 Joelton: Unit 2A - Lube Oil Varnish System Installation (4/8/2026 - 4/12/2026)

Sta 563 Joelton: Unit 2A - Solar Turbine Exchange (4/13/2026 - 4/21/2026) Sta 860: Unit 2C - 4K/Turbine Waterwash/Boroscope (4/9/2026 - 4/10/2026)

Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2026) Sta 860: Unit 1C - 4K/Turbine Waterwash/Boroscope (4/7/2026 - 4/8/2026)

Station 110

(segment 187 BH)

(south thru Kentucky)

2,685

2407

(278)

2601

(84)

2,685

2,685

2680

(5)

MLV 106-2 to MLV 110-2: Pig Run - Cal / IMU (4/2/2026)

MLV 106-2 to MLV 110-2: Pig Run - Cleaning / Gauge (3/31/2026) MLV 106-2 to MLV 110-2: Pig Run - MFL-A (4/7/2026)

Sta 106: Unit 1D - 8K Solar Turbine Inspection (3/30/2026 - 4/3/2026) Sta 87: Unit 3D - Power side Overhaul (4/27/2026 - 7/30/2026)

Sta 96: Unit 1D - Compressor Valves (3/16/2026 - 4/3/2026)

Station 114

(segment 114 BH)

907

848

(59)

907

648

(259)

648

(259)

648

(259)

MLV 119-1 to MLV 121-1: Anomaly Remediation (4/13/2026 - 5/22/2026) Sta 118A: Solar Turbine Inspection (3/30/2026 - 4/1/2026)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

April 2026 (updated 01/29/26)

-Minor impact restrictions may be necessary depending on flow conditions

-Little to no impact, though minor outages may cause incremental reductions

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(3/30 - 4/5)

Week 2

(4/6 - 4/12)

Week 3

(4/13 - 4/19)

Week 4

(4/20 - 4/26)

Week 5

(4/27 - 5/3)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 204

(Segment 204 BH)

1,828

1800

(28)

1545

(283)

1472

(356)

1340

(488)

1763

(65)

MLV 204-3 to MLV 209-3: Pig Run - Cal/IMU (4/16/2026)

MLV 204-3 to MLV 209-3: Pig Run - EMAT (4/23/2026)

MLV 204-3 to MLV 209-3: Pig Run - Gauge/Cleaning (4/14/2026) MLV 204-3 to MLV 209-3: Pig Run - MFL-C (4/21/2026)

MLV 213-1A to MLV 213-1BR: SPECIAL PERMIT REPLACEMENT TGP 213-1

(M) (4/1/2026 - 5/22/2026)

MLV 214-2 to MLV 219-2: Pig Run - Cal/IMU (M) (4/30/2026)

MLV 214-2 to MLV 219-2: Pig Run - Gauge/Cleaning (M) (4/28/2026) Sta 204: ESD Test (4/20/2026 - 4/24/2026)

Sta 209 Cambridge: Annual ESD Test & Maintenance (4/6/2026 - 4/17/2026)

Station 233

(segment 233 FH)

459

83

(376)

100

(359)

459

459

459

MLV 230-1 to MLV 237-1: Pig Run - CAL/IMU/MFL-C (M) (4/1/2026) MLV 230-1 to MLV 237-1: Pig Run - EMAT (M) (4/6/2026)

MLV 230-1 to MLV 237-1: Pig Run - Gauge/Cleaning (M) (3/30/2026)

Station 245

(segment 245 FH)

986

986

986

986

986

755

(231)

Sta 245 West Winfield: Annual ESD Test & Maintenance (4/30/2026 - 5/8/2026)

MLV 256 West

(segment 249 FH)

1,203

1,203

1,203

1,203

1,203

535

(668)

MLV 249-2 to MLV 254-2: Cal/IMU (4/29/2026)

MLV 249-2 to MLV 254-2: Gauge/Cleaning tool (4/28/2026) MLV 249-2 to MLV 254-2: MFL-C (4/30/2026)

Station 254

(segment 256 FH)

1,203

1,203

1,203

1040

(163)

1,203

1,203

MLV 254-3 to MLV 258-3A: Pig Runs - Cal/IMU/MFL-A Combo - 4/14/26 (4/14/2026)

MLV 254-3 to MLV 258-3A: Pig Runs - Gauge/Cleaning tool - 4/13/26

(4/13/2026)

Station 261 Discharge East (segment 261

FH)

888

888

888

888

888

888

Station 307

(segment 307 BH)

1,153

1,153

1,153

1,153

1,153

1,153

Station 315

(segment 315 BH)

1,823

1,823

1,823

1,823

1,823

1,823

MLV 324

(segment 324 FH)

1,767

1,767

1,767

1,767

1,767

1,767

Station 405 HC Line (segment 299

FH)

794

794

794

680

(114)

794

794

Sta 313 to Sta 237: Pig Run - Cleaning Run (HC Line) (4/14/2026) Sta 405A: Unit Water Wash (4/14/2026)

Station 224

(segment 224 FH)

388

388

200

(188)

388

388

388

MLV 229-2 to MLV 232-2: Pig runs - Maintenance (M) (4/8/2026 - 4/9/2026)

This document is updated on a weekly basis and outage schedules/impacts are subject to change as the week progresses. Dates posted on DART should be deemed correct in the event of conflicts between DART posted dates and dates on this report.