TGP Outage Impact Report

Tennessee Gas Pipeline 2d ago

All information here is provided as a service and information is not guaranteed to be accurate. PipeRiv is not responsible for any incorrect information.

TSP/TSP Name: 1939164-TENNESSEE GAS PIPELINE	Critical: Y
Notice Type Desc (1): MAINTENANCE	Notice Type Desc (2): MAINTENANCE
Notice Eff Date/Time: 09/25/2025 3:12:13PM	Notice End Date/Time: 09/26/2025 9:00:00am
Post Date/Time: 9/25/2025 3:12:13 PM	Notice ID: 395908
Reqrd Rsp: 1	Rsp Date: 09/25/2025
Notice Stat Desc: INITIATE	Prior Notice:
Subject: TGP Outage Impact Report

Notice Text:

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

Seven Day Forecast (updated 09/25/25)

-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

(9/29)

Tuesday

(9/30)

Wednesday

(10/1)

Thursday

(10/2)

Friday

(10/3)

Saturday

(10/4)

Sunday

(10/5)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490

FH)

564

504

(60)

504

(60)

504

(60)

504

(60)

504

(60)

564

Sta 409: Unit 3A - Engine Inspection (9/29/2025 - 10/3/2025)

MLV 406

(segment 406 BH)

456

445

(11)

445

(11)

445

(11)

445

(11)

445

(11)

445

(11)

445

(11)

MLV 400-1 to MLV 401-1: Immediate Anomaly Remediation (9/24/2025 - 10/10/2025)

Station 1

(segment 101 BH)

400

400

Station 9

(segment 109 BH)

1,028

1,028

Station 25

(segment 125 FH)

714

700

(14)

700

(14)

700

(14)

700

(14)

700

(14)

700

(14)

700

(14)

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

Station 40 South

(segment 132 FH)

912

777

(135)

777

(135)

777

(135)

777

(135)

595

(317)

777

(135)

777

(135)

MLV 39-1 to MLV 40-1S: Class Change (9/26/2025 - 10/3/2025) MLV 39-2 to MLV 40-2S: Class Change (10/3/2025 - 10/10/2025)

Station 47

(segment 143 FH)

1,226

884

(342)

884

(342)

825

(401)

750

(476)

825

(401)

825

(401)

1220

(6)

MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025) MLV 47-1AT to MLV 49-1: Anomaly Remediation (1/6/2025 - 10/31/2025)

MLV 49-1 to MLV 50-1: Anomaly Remediation (3/4/2025 - 10/31/2025) MLV 53-2BREH to MLV 53-2BR: Special Permit Replacement (9/12/2025 - 10/15/2025)

MLV 53-3BR to MLV 54-3BL: HydroTest (8/25/2025 - 10/4/2025) MLV 54-4D TO MLV 63-4S: Pig Re-Runs - EMAT 10/2/25 (10/2/2025)

Sta 54: Unit 6B - Power Overhaul (10/1/2025 - 11/24/2025) Sta 54: Unit 8B - Power Overhaul (10/1/2025 - 11/24/2025)

Station 63

(segment 163 FH)

1,233

1038

(195)

1038

(195)

1038

(195)

1038

(195)

1038

(195)

1038

(195)

1038

(195)

MLV 68-2 to MLV 69-2: Immediate Anomaly Remediation (9/19/2025 - 10/3/2025)

MLV 83-4 to MLV 83-4B: Install Backpressure Regulator (10/1/2025 - 10/15/2025)

MLV 84-4 to MLV 85-4: Class Change Pipe Replacement (9/26/2025 -

10/27/2025)

Station 823

(segment 823 BH)

686

686

Station 834

(segment 834 BH)

679

590

(89)

670

(9)

670

(9)

670

(9)

670

(9)

670

(9)

670

(9)

Sta 834: Annual ESD Test (9/29/2025)

Sta 834: Unit 6A - Overhaul (3/3/2025 - 11/3/2025)

Station 823 Muskrat Line (segment 509 BH)

242

242

200

(42)

242

Sta 823 to MLV 516: Pig Run - Maintenance (M) (10/1/2025)

Station 523

(segment 523 FH)

448

448

350

(98)

448

Sta 523: Suction Strainer (9/30/2025)

Station 534 South of Pool (segment 530 BH)

1,798

1460

(338)

1460

(338)

1460

(338)

1460

(338)

1460

(338)

1460

(338)

1460

(338)

Sta 530: Unit 1A - Bearings (8/25/2025 - 10/10/2025) Sta 530: Unit 2A - Bearings (8/26/2025 - 10/10/2025)

Sta 530: Unit 3A - Crankshaft Replacement (6/9/2025 - 10/31/2026) Sta 530: Unit 4A - Piston (8/25/2025 - 10/3/2025)

Sta 530: Unit 5A - Top-End Overhaul (6/9/2025 - 12/31/2026) Sta 530: Unit 8A - Power Cylinders (9/23/2025 - 10/10/2025)

Sta 534: Unit 6A - Piston Liner & Unloader Replacements (3/25/2025 - 12/5/2025)

Sta 534: Unit 7A - Piston / Liner (5/20/2025 - 12/5/2025)

Station 542

(segment 539 BH)

1,719

1695

(24)

1,719

Sta 542: Unit 4A - Cooler Maintenance (9/16/2025 - 9/29/2025)

MLV 548

(segment 542 BH)

1,597

1375

(222)

1375

(222)

1375

(222)

1375

(222)

1375

(222)

1375

(222)

1375

(222)

Sta 546: Unit 1A - Engine and Compressor Overhaul (8/11/2025 - 10/17/2025) Sta 546: Unit 4A - Engine and Compressor Overhaul (9/29/2025 - 11/7/2025)

Station 860

(segment 548 BH)

1,516

1500

(16)

1500

(16)

1500

(16)

1500

(16)

1500

(16)

1500

(16)

1500

(16)

Sta 550: Unit 2A - Compressor Overhaul (8/25/2025 - 10/17/2025)

Station 860 North (Segment 860 BH)

1,793

1780

(13)

1780

(13)

1780

(13)

1780

(13)

1780

(13)

1780

(13)

1780

(13)

Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2024 - 12/31/2025)

Station 110

(segment 187 BH)

(south thru Kentucky)

2,645

2045

(600)

2045

(600)

2455

(190)

2240

(405)

2455

(190)

2370

(275)

2460

(185)

MLV 106-1D to MLV 110-7: Make Piggable Valve MLV 107-7, MLV 109-7

Replacements & Adding MLV 109-7A (M) (9/3/2025 - 9/30/2025) MLV 108-3 to MLV 109-3: Special Permit Pipe Replacement (9/24/2025 -

10/15/2025)

MLV 867-2 to MLV 868-2: Anomaly Remediation (10/4/2025 - 10/31/2025) MLV 868-2 to MLV 868-2A: Anomaly Remediation (9/25/2025 - 10/4/2025) MLV 96-5 to MLV 102-5: Pig Runs - AFD Combo 10/2/25 (10/2/2025)

MLV 96-5 to MLV 102-5: Pig Runs - Caliper 9/30/25 (9/30/2025) Sta 106: Unit 1C - Replace Power Cylinder Bearing #7 (4/14/2025 - 10/17/2025)

Sta 87: Unit 1E - Turbocharger Replacement (9/16/2025 - 10/17/2025) Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 12/31/2025)

Station 114

(segment 114 BH)

920

920

Station 204

(Segment 204 BH)

1,827

1300

(527)

1300

(527)

1300

(527)

1300

(527)

1300

(527)

1300

(527)

1300

(527)

Sta 200: Unit 1B - Maintenance (9/29/2025 - 10/3/2025)

Sta 204: Unit 3A - Change Bearing Fuses (9/29/2025 - 9/30/2025)

Sta 87 to Sta 219: Cumulative Planned/Unplanned Maintenance-204 (8/5/2025 10/19/2025)

Station 219 South (Segment 217 BH)

1,638

1438

(200)

1438

(200)

1438

(200)

1438

(200)

1438

(200)

1438

(200)

1438

(200)

Sta 87 to Sta 219: Cumulative Planned/Unplanned Maintenance-217 (8/4/2025 10/19/2025)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

Seven Day Forecast (updated 09/25/25)

-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

(9/29)

Tuesday

(9/30)

Wednesday

(10/1)

Thursday

(10/2)

Friday

(10/3)

Saturday

(10/4)

Sunday

(10/5)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 245

(segment 245 FH)

997

850

(147)

850

(147)

850

(147)

850

(147)

850

(147)

850

(147)

850

(147)

Sta 241: Unit 1B - 2K Maintenance (9/30/2025 - 10/1/2025)

Sta 249: Unit 1A - Aftercooler Upgrade (9/29/2025 - 10/31/2025)

MLV 256 West

(segment 249 FH)

1,213

1,213

1035

(178)

1,213

MLV 249-2 to MLV 254-2: Efficiency Pigging (10/2/2025)

Station 254

(segment 256 FH)

1,213

1055

(158)

1055

(158)

1055

(158)

1055

(158)

1055

(158)

1055

(158)

1055

(158)

Sta 254: Unit 4A - Replace Power Cylinder Head (5/16/2025 - 11/1/2025) Sta. 254: Bldg A Stack Replacement and Unit Upgrades (7/14/2025 -

11/1/2025)

Station 261 Discharge East (segment 261 FH)

941

941

Station 266A

(segment 282 FH)

371

330

(41)

330

(41)

330

(41)

330

(41)

330

(41)

371

Sta 266A: Annual ESD Tests (M) (9/29/2025 - 9/30/2025)

Sta 266A: Filter / Separator Changeout (M) (10/2/2025 - 10/3/2025) Sta 266A: Protective Device Checks (M) (9/30/2025 - 10/3/2025)

Station 267 South (segment 266 FH)

469

312

(157)

312

(157)

312

(157)

312

(157)

312

(157)

312

(157)

312

(157)

Sta. 267: Bldg A Controls Upgrade (9/2/2025 - 11/26/2025)

Fitchburg Lat to Gloucester (segment 268

FH)

202

140

(62)

140

(62)

202

MLV 267-1A to MLV 268-1: Anomaly Remediation (9/15/2025 - 9/30/2025)

Station 307

(segment 307 BH)

1,150

1,150

Station 315

(segment 315 BH)

1,854

1,854

Station 321

(segment 321 FH)

2,102

1850

(252)

1850

(252)

1850

(252)

1850

(252)

1850

(252)

2,102

Sta 323: Unit 1A - Drive Modernization Upgrade (9/29/2025 - 10/3/2025) Sta. 323A Lackawaxen: Annual ESD Testing (9/29/2025 - 9/30/2025)

MLV 324

(segment 324 FH)

1,767

1515

(252)

1515

(252)

1515

(252)

1515

(252)

1515

(252)

1735

(32)

1735

(32)

Sta 325: Annual ESD Test (9/29/2025 - 10/3/2025) Sta 325: Units 4A - Vibration (9/8/2025 - 10/10/2025)

Station 405 HC Line (segment 299 FH)

803

803

Station 224

(segment 224 FH)

389

200

(189)

200

(189)

200

(189)

200

(189)

200

(189)

200

(189)

200

(189)

Sta 229: Automation Upgrade & Maintenance (M) (8/11/2025 - 10/17/2025)

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

October 2025 (updated 09/25/25)

-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

(9/29 - 10/5)

Week 2

(10/6 - 10/12)

Week 3

(10/13 - 10/19)

Week 4

(10/20 - 10/26)

Week 5

(10/27 - 11/2)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409A (Alamo) (segment 492 FH)

274

274

134

(140)

274

MLV 409A-901 to MLV 409A-902: Pig Run - Cleaning 10/14/25 (M) (10/14/2025)

MLV 409A-901 to MLV 409A-902: Pig Run - Cleaning 10/15/25 (M) (10/15/2025) MLV 409A-901 to MLV 409A-902: Pig Run - MFL-A 10/16/25 (M) (10/16/2025)

Station 409 (Donna Line) (segment 490 FH)

564

564

MLV 406

(segment 406 BH)

456

445

(11)

456

MLV 400-1 to MLV 401-1: Immediate Anomaly Remediation (9/24/2025 - 10/10/2025)

Station 1

(segment 101 BH)

400

400

Station 9

(segment 109 BH)

1,028

845

(183)

1,028

660

(368)

1,028

MLV 9-2 to MLV 5-2: Pig Runs - Maintenance Cleaning 10/23 (M) (10/23/2025) MLV 9-3 to MLV 4-3: Pig Runs - Maintenance Cleaning 10/22 (M) (10/22/2025) Sta 11A: Annual ESD Test (10/7/2025)

Sta 11A: Unit 1A - Safety Devices (10/20/2025 - 10/22/2025)

Station 25

(segment 125 FH)

714

700

(14)

700

(14)

700

(14)

700

(14)

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

Station 40 South

(segment 132 FH)

912

777

(135)

912

637

(275)

747

(165)

MLV 32-2D TO MLV 40-2S: Pig Runs - Maintenance (10/28/2025) MLV 32-3D to MLV 40-3S: Pig Runs - Maintenance (10/21/2025)

MLV 39-2 to MLV 40-2S: Class Change (10/3/2025 - 10/10/2025)

Carthage Lateral (segment 700

FH)

323

215

(108)

323

MLV 706-1 to MLV 700-1: Pig Run - Maintenance (M) (10/6/2025)

Station 40 KN South

(segment 501

FH)

268

268

175

(93)

Sta 500-1 to Sta 823 (MLV 507-1): Pig Run - Maintenance (M) (10/29/2025)

Station 47

(segment 143 FH)

1,226

1220

(6)

1220

(6)

1155

(71)

1160

(66)

MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025) MLV 47-1AT to MLV 49-1: Anomaly Remediation (1/6/2025 - 10/31/2025) MLV 47-2A to MLV 48-2: Pipe Replacement (M) (10/13/2025 - 10/24/2025)

MLV 47-3A to MLV 48-3: Pipe Replacement (10/27/2025 - 11/7/2025) MLV 49-1 to MLV 50-1: Anomaly Remediation (3/4/2025 - 10/31/2025) MLV 53-2BREH to MLV 53-2BR: Special Permit Replacement (9/12/2025 - 10/15/2025)

MLV 54-4D TO MLV 63-4S: Pig Runs - Ultra EMAT 10/23/25 (10/23/2025)

Sta 47: Unit 1D - Flush & Clean Cooling Systems (10/20/2025 - 10/24/2025) Sta 47: Unit 2D - Flush & Clean Cooling Systems (10/20/2025 - 10/24/2025) Sta 54: Unit 6B - Power Overhaul (10/1/2025 - 11/24/2025)

Sta 54: Unit 8B - Power Overhaul (10/1/2025 - 11/24/2025)

Station 63

(segment 163 FH)

1,233

1038

(195)

1038

(195)

1088

(145)

848

(385)

MLV 63-4D to MLV 71-4S: Pig Runs - Caliper / IMU 10/30/25 (10/30/2025) MLV 63-4D to MLV 71-4S: Pig Runs - Cleaning / Gauge 10/28/25 (10/28/2025) MLV 83-3 to MLV 83-3B: Install Backpressure Regulator (10/16/2025 - 10/31/2025)

MLV 83-4 to MLV 83-4B: Install Backpressure Regulator (10/1/2025 - 10/15/2025)

MLV 84-4 to MLV 85-4: Class Change Pipe Replacement (9/26/2025 - 10/27/2025)

Station 823

(segment 823 BH)

686

686

515

(171)

686

Station 827 (Alexandria): Station Recycle Valve (10/14/2025 - 10/16/2025)

Station 834

(segment 834 BH)

679

670

(9)

670

(9)

670

(9)

664

(15)

Sta 834: Unit 6A - Overhaul (3/3/2025 - 11/3/2025)

Station 847

(segment 847 BH)

284

284

160

(124)

160

(124)

284

MLV 856-1 to MLV 860-1: Pig Runs - Cal / IMU 10/21/25 (10/21/2025)

MLV 856-1 to MLV 860-1: Pig Runs - Cleaning / Gauge 10/16/25 (10/16/2025) MLV 856-1 to MLV 860-1: Pig Runs - MFL-C 10/23/25 (10/23/2025)

Station 534 South of Pool (segment 530 BH)

1,798

1460

(338)

1570

(228)

1570

(228)

1570

(228)

Sta 530: Unit 1A - Bearings (8/25/2025 - 10/10/2025) Sta 530: Unit 2A - Bearings (8/26/2025 - 10/10/2025)

Sta 530: Unit 3A - Crankshaft Replacement (6/9/2025 - 10/31/2026) Sta 530: Unit 5A - Top-End Overhaul (6/9/2025 - 12/31/2026) Sta 530: Unit 8A - Power Cylinders (9/23/2025 - 10/10/2025)

Sta 534: Unit 6A - Piston Liner & Unloader Replacements (3/25/2025 - 12/5/2025)

Sta 534: Unit 7A - Piston / Liner (5/20/2025 - 12/5/2025)

TGP - Outage Impact Report October 2025 (updated 09/25/25)

-Primary impact restrictions may be necessary

-Major impact restrictions may be necessary

-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

(9/29 - 10/5)

Week 2

(10/6 - 10/12)

Week 3

(10/13 - 10/19)

Week 4

(10/20 - 10/26)

Week 5

(10/27 - 11/2)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 542

(segment 539 BH)

1,719

1380

(339)

1380

(339)

845

(874)

845

(874)

MLV 540-1 to MLV 540-1A: Anomaly Remediation (10/10/2025 - 10/20/2025)

MLV 540-1 to MLV 540-1A: Shallow Pipe Lowering (10/10/2025 - 10/17/2025) MLV 540-2 to MLV 540-2A: Shallow Pipe Lowering (10/23/2025 - 10/31/2025) MLV 541-1 to MLV 541-1A: Anomaly Remediation (10/10/2025 - 10/20/2025)

MLV 548

(segment 542 BH)

1,597

1375

(222)

1375

(222)

1375

(222)

1375

(222)

Sta 546: Unit 1A - Engine and Compressor Overhaul (8/11/2025 - 10/17/2025) Sta 546: Unit 4A - Engine and Compressor Overhaul (9/29/2025 - 11/7/2025)

Station 860

(segment 548 BH)

1,516

1390

(126)

1500

(16)

1245

(271)

1500

(16)

Sta 550 Hamilton: Annual ESD Test & Maintenance (10/23/2025) Sta 550: A building - Replace SLC 500 Remote PLC (10/23/2025) Sta 550: Unit 2A - Compressor Overhaul (8/25/2025 - 10/17/2025) Sta 550: Unit 3A - Turbocharger Exchange (10/27/2025 - 11/7/2025) Sta 555: Unit 1A - Engine Maintenance (10/6/2025 - 10/11/2025) Sta 555: Unit 2A - Engine Maintenance (10/6/2025 - 10/11/2025) Sta 555: Unit 5A - Engine Maintenance (10/6/2025 - 10/11/2025) Sta 555: Unit 6A - Engine Maintenance (10/6/2025 - 10/11/2025)

Station 860 North (Segment 860 BH)

1,793

1675

(118)

1780

(13)

1780

(13)

1780

(13)

MLV 861-1 to MLV 862-1: Install New 30" Valve 861-1A (10/29/2025 - 11/3/2025)

Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2024 - 12/31/2025) Sta. 860: Unit 1C - Engine Inspection/Condition Assessment (10/6/2025 - 10/10/2025)

Sta. 860: Unit 2C - Engine Inspection/Condition Assessment (10/6/2025 - 10/10/2025)

Station 110

(segment 187 BH)

(south thru Kentucky)

2,645

2195

(450)

1810

(835)

2310

(335)

2300

(345)

MLV 106-1 to MLV 111-7: Pig Runs - AFD Combo 10/14/25 (10/14/2025)

MLV 106-1 to MLV 111-7: Pig Runs - Cleaning / Gauge 10/9/25 (10/9/2025) MLV 106-1 to MLV 111-7: Pig Runs - EMAT 10/16/25 (10/16/2025)

MLV 108-2 to MLV 109-2: Special Permit Pipe Replacement (M) (11/1/2025 - 11/30/2025)

MLV 108-3 to MLV 109-3: Special Permit Pipe Replacement (9/24/2025 - 10/15/2025)

MLV 109-2 to 109-2A: Special Permit Pipe Replacement (10/16/2025 - 10/31/2025)

MLV 109-3 to MLV 109-3A: Special Permit Pipe Replacement (10/16/2025 - 10/31/2025)

MLV 867-2 to MLV 868-2: Anomaly Remediation (10/4/2025 - 10/31/2025) MLV 871-2A to MLV 872-2: Anomaly Remediation (10/26/2025 - 11/26/2025) MLV 871-2L to MLV 871-2A: Anomaly Remediation (10/26/2025 - 11/26/2025) MLV 872-2 to MLV 873-2: Anomaly Remediation (10/26/2025 - 11/26/2025) MLV 873-2 to MLV 873-2A: Anomaly Remediation (10/26/2025 - 11/26/2025) MLV 90-3 to MLV 91-3: HDD River Crossing Replacement (10/31/2025 - 11/12/2025)

MLV 96-5 to MLV 102-5: Pig Runs - EMAT 10/7/25 (10/7/2025)

Sta 106 Clay City: Upgrade B Building Jacket Water System (10/20/2025 - 11/7/2025)

Sta 106: Unit 1C - Replace Power Cylinder Bearing #7 (4/14/2025 - 10/17/2025) Sta 110 Morehead: Unit Inspections (10/20/2025 - 10/24/2025)

Sta 87 Portland: Annual ESD Test (10/13/2025 - 10/14/2025)

Sta 87: Unit 1E - Turbocharger Replacement (9/16/2025 - 10/17/2025) Sta 87: Unit 2E - Turbocharger Replacement (10/20/2025 - 11/21/2025) Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 12/31/2025)

Station 114

(segment 114 BH)

920

850

(70)

920

700

(220)

840

(80)

Sta 114: Installation of Unit Valves (10/24/2025 - 10/25/2025) Sta 114: Unit 1C - Complete Intallation of Unit Valves (10/27/2025) Sta 114: Unit 2C - Complete Installation of Unit Valves (10/29/2025)

Sta 118A Tyler Mountain: Annual ESD Test (10/27/2025 - 10/29/2025) Sta 118A: Unit 1A - Turbine Exchange (10/6/2025 - 10/11/2025)

Station 204

(Segment 204 BH)

1,827

1300

(527)

1300

(527)

1761

(66)

1371

(456)

MLV 209-4 to MLV 204-4: Pig Runs - Cleaning / Gauge 10/30/25 (10/30/2025) MLV 213-2A to MLV 214-2: Special Permit Replacement (10/9/2025 - 11/19/2025)

Sta 209: Unit 4A - Packing & Starting Air Valves (10/20/2025 - 10/23/2025) Sta 209: Unit 5A - Crankcase Inspection (10/13/2025 - 10/16/2025)

Sta 209: Unit 7A - Packing (10/27/2025 - 10/30/2025)

Sta 87 to Sta 219: Cumulative Planned/Unplanned Maintenance-204 (8/5/2025 - 10/19/2025)

Station 219 South (Segment 217 BH)

1,638

1438

(200)

1438

(200)

1,638

Sta 87 to Sta 219: Cumulative Planned/Unplanned Maintenance-217 (8/4/2025 - 10/19/2025)

Station 245

(segment 245 FH)

997

835

(162)

835

(162)

850

(147)

850

(147)

Sta 241: Unit 1A - Engine Maintenance (10/6/2025 - 10/10/2025) Sta 241: Unit 2A - Engine Maintenance (10/13/2025 - 10/17/2025)

Sta 249: Unit 1A - Aftercooler Upgrade (9/29/2025 - 10/31/2025)

Station 254

(segment 256 FH)

1,213

1055

(158)

1055

(158)

1055

(158)

931

(282)

Sta 254: Unit 4A - Replace Power Cylinder Head (5/16/2025 - 11/1/2025) Sta. 254: Bldg A Stack Replacement and Unit Upgrades (7/14/2025 -

11/1/2025)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

October 2025 (updated 09/25/25)

-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

(9/29 - 10/5)

Week 2

(10/6 - 10/12)

Week 3

(10/13 - 10/19)

Week 4

(10/20 - 10/26)

Week 5

(10/27 - 11/2)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 261 Discharge East (segment 261

FH)

941

930

(11)

590

(351)

941

Sta 261 Agawam: Annual ESD Test (M) (10/13/2025 - 10/15/2025)

Sta 261: Unit 4A - Compressor Rod Packing (M) (10/6/2025 - 10/9/2025)

Station 267 South (segment 266 FH)

469

312

(157)

312

(157)

312

(157)

312

(157)

Sta. 267: Bldg A Controls Upgrade (9/2/2025 - 11/26/2025)

Station 307

(segment 307 BH)

1,150

1,150

940

(210)

1005

(145)

965

(185)

MLV 313-1 to MLV 307-1: Pig Run - Maintenance 10/14 (M) (10/14/2025) Sta 303A: Unit 1A - Water Wash (10/28/2025 - 10/29/2025)

Sta 310: Unit 1A - Water Wash & Borescope (10/21/2025 - 10/22/2025)

Station 315

(segment 315 BH)

1,854

1,854

Station 321

(segment 321 FH)

2,102

1240

(862)

1240

(862)

1240

(862)

2,102

MLV 320-2A to MLV 322-2: Drip Removal 321-2-1 (M) (10/6/2025 - 10/21/2025)

MLV 324

(segment 324 FH)

1,767

1735

(32)

1,767

Sta 325: Units 4A - Vibration (9/8/2025 - 10/10/2025)

Station 405 HC Line (segment 299 FH)

803

803

690

(113)

803

Sta 405A: Unit 1A - 8K Solar Turbine Borescope Inspection (10/15/2025) Sta 405A: Unit 1A - Water Wash (10/14/2025)

Station 224

(segment 224 FH)

389

200

(189)

200

(189)

389

Sta 229: Automation Upgrade & Maintenance (M) (8/11/2025 - 10/17/2025)

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

November 2025 (updated 09/25/25)

-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

(11/3 - 11/9)

Week 2

(11/10 - 11/16)

Week 3

(11/17 - 11/23)

Week 4

(11/24 - 11/30)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490 FH)

585

585

Station 1

(segment 101 BH)

438

438

Station 9

(segment 109 BH)

1,066

1,066

Station 17

(segment 117 FH)

1,143

1130

(13)

1130

(13)

1130

(13)

1,143

MLV 17-1D to MLV 18-1: Anomaly Remediation (11/3/2025 - 11/21/2025)

Station 25

(segment 125 FH)

1,101

1087

(14)

1087

(14)

1087

(14)

1087

(14)

MLV 26-1 Relocation: Highway 59 Widening (11/11/2025 - 12/10/2025) Sta 25: Unit 1C - VFD Replacement (7/16/2025 - 10/31/2026)

Station 47

(segment 143 FH)

1,354

1349

(5)

1349

(5)

1349

(5)

1349

(5)

MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025) MLV 47-3A to MLV 48-3: Pipe Replacement (10/27/2025 - 11/7/2025)

MLV 47-4A to MLV 48-4: Pipe Replacement (M) (11/10/2025 - 11/21/2025) Sta 54: Unit 6B - Power Overhaul (10/1/2025 - 11/24/2025)

Sta 54: Unit 8B - Power Overhaul (10/1/2025 - 11/24/2025)

Station 63

(segment 163 FH)

1,287

887

(400)

1255

(32)

1,287

MLV 63-4D to MLV 71-4S: Pig Runs - EMAT 11/6/25 (11/6/2025)

MLV 63-4D to MLV 71-4S: Pig Runs - MFL-C 11/4/25 (11/4/2025) MLV 71-1D to MLV 77-1A: Pig Re-Runs - MDS 11/12/25 (11/12/2025)

Station 823

(segment 823 BH)

759

215

(544)

759

Sta 827 to Sta 823: Pig Run - Maintenance (M) (11/5/2025) Sta 834 to Sta 827: Maintenance Pig (M) (11/5/2025)

Station 834

(segment 834 BH)

733

718

(15)

733

Sta 834: Unit 6A - Overhaul (3/3/2025 - 11/3/2025)

Station 534 South of Pool (segment 530 BH)

1,632

1485

(147)

1485

(147)

1485

(147)

1485

(147)

Sta 530: Unit 3A - Crankshaft Replacement (6/9/2025 - 10/31/2026) Sta 530: Unit 5A - Top-End Overhaul (6/9/2025 - 12/31/2026)

Sta 534: Unit 6A - Piston Liner & Unloader Replacements (3/25/2025 - 12/5/2025)

Sta 534: Unit 7A - Piston / Liner (5/20/2025 - 12/5/2025)

MLV 548

(segment 542 BH)

1,771

1736

(35)

1,771

Sta 546: Unit 4A - Engine and Compressor Overhaul (9/29/2025 - 11/7/2025)

Station 860

(segment 548 BH)

1,697

1681

(16)

1,697

Sta 550: Unit 3A - Turbocharger Exchange (10/27/2025 - 11/7/2025)

Station 860 North (Segment 860 BH)

2,028

2015

(13)

2015

(13)

1925

(103)

2015

(13)

MLV 560-1 to MLV 563-1: HDD River Crossing & MLV 561-1 & MLV 562-1

Replacement (11/17/2025 - 11/21/2025)

MLV 861-1 to MLV 862-1: Install New 30" Valve 861-1A (10/29/2025 - 11/3/2025)

Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2024 - 12/31/2025)

Station 110

(segment 187 BH)

(south thru Kentucky)

2,775

2055

(720)

2055

(720)

2505

(270)

2515

(260)

MLV 108-2 to MLV 109-2: Special Permit Pipe Replacement (M) (11/1/2025 - 11/30/2025)

MLV 871-2A to MLV 872-2: Anomaly Remediation (10/26/2025 - 11/26/2025) MLV 871-2L to MLV 871-2A: Anomaly Remediation (10/26/2025 - 11/26/2025) MLV 872-2 to MLV 873-2: Anomaly Remediation (10/26/2025 - 11/26/2025) MLV 873-2 to MLV 873-2A: Anomaly Remediation (10/26/2025 - 11/26/2025) MLV 87-4 to MLV 96-4: Pig Runs - AFD Combo 11/11/25 (M) (11/11/2025)

MLV 87-4 to MLV 96-4: Pig Runs - Caliper 11/6/25 (M) (11/6/2025)

MLV 87-4 to MLV 96-4: Pig Runs - Cleaning / Gauge 11/4/25 (M) (11/4/2025) MLV 87-4 to MLV 96-4: Pig Runs - EMAT 11/13/25 (M) (11/13/2025)

MLV 90-3 to MLV 91-3: HDD River Crossing Replacement (10/31/2025 - 11/12/2025)

Sta 106 Clay City: Upgrade B Building Jacket Water System (10/20/2025 - 11/7/2025)

Sta 87: Unit 2E - Turbocharger Replacement (10/20/2025 - 11/21/2025) Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 12/31/2025) Sta 96: Unit 2D - Compressor Valves (11/10/2025 - 11/14/2025)

Station 114

(segment 114 BH)

948

948

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

November 2025 (updated 09/25/25)

-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

(11/3 - 11/9)

Week 2

(11/10 - 11/16)

Week 3

(11/17 - 11/23)

Week 4

(11/24 - 11/30)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 204

(Segment 204 BH)

1,895

1432

(463)

1456

(439)

1419

(476)

1,895

MLV 209-4 to MLV 204-4: Pig Runs - Cal & IMU 11/04/25 (11/4/2025)

MLV 209-4 to MLV 204-4: Pig Runs - MFL-A 11/06/25 (11/6/2025)

MLV 213-2A to MLV 214-2: Special Permit Replacement (10/9/2025 - 11/19/2025)

MLV 219-4 to MLV 214-4: Pig Run - Cleaning/Gauge 11/11/25 (M) (11/11/2025) MLV 219-4 to MLV 214-4: Pig Run - EMAT 11/20/25 (M) (11/20/2025)

MLV 219-4 to MLV 214-4: Pig Run - IMU/Caliper 11/13/25 (M) (11/13/2025) MLV 219-4 to MLV 214-4: Pig Run - MFL-C 11/18/25 (M) (11/18/2025)

Station 245

(segment 245 FH)

1,063

1,063

Station 261 Discharge East (segment 261 FH)

1,045

1,045

Station 267 South (segment 266 FH)

503

346

(157)

346

(157)

346

(157)

346

(157)

Sta. 267: Bldg A Controls Upgrade (9/2/2025 - 11/26/2025)

Station 307

(segment 307 BH)

1,202

1,202

Station 315

(segment 315 BH)

1,915

1,915

MLV 324

(segment 324 FH)

1,885

1,885

Station 405 HC Line (segment 299 FH)

827

827

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

December 2025 (updated 09/25/25)

-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

(12/1 - 12/7)

Week 2

(12/8 - 12/14)

Week 3

(12/15 - 12/21)

Week 4

(12/22 - 12/28)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490 FH)

585

585

Station 1

(segment 101 BH)

438

438

Station 9

(segment 109 BH)

1,066

1,066

Station 25

(segment 125 FH)

1,101

1087

(14)

1075

(26)

1075

(26)

1075

(26)

MLV 26-1 Relocation: Highway 59 Widening (11/11/2025 - 12/10/2025) MLV 26-1 to MLV 27-1: Install Road Casing (12/6/2025 - 1/19/2026) MLV 26-2 Relocation: Highway 59 Widening (12/11/2025 - 1/19/2026)

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

Station 47

(segment 143 FH)

1,354

1349

(5)

1349

(5)

1349

(5)

1349

(5)

MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025)

Station 63

(segment 163 FH)

1,287

1,287

Station 823

(segment 823 BH)

759

759

Station 534 South of Pool (segment 530 BH)

1,632

1485

(147)

1610

(22)

1610

(22)

1610

(22)

Sta 530: Unit 3A - Crankshaft Replacement (6/9/2025 - 10/31/2026) Sta 530: Unit 5A - Top-End Overhaul (6/9/2025 - 12/31/2026)

Sta 534: Unit 6A - Piston Liner & Unloader Replacements (3/25/2025 - 12/5/2025)

Sta 534: Unit 7A - Piston / Liner (5/20/2025 - 12/5/2025)

MLV 548

(segment 542 BH)

1,771

1,771

Station 860

(segment 548 BH)

1,697

1,697

Station 860 North (Segment 860 BH)

2,028

2015

(13)

2015

(13)

2015

(13)

2015

(13)

Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2024 - 12/31/2025)

Station 110

(segment 187 BH)

(south thru

Kentucky)

2,775

2645

(130)

2645

(130)

2645

(130)

2645

(130)

Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 12/31/2025)

Station 114

(segment 114 BH)

948

948

Station 204

(Segment 204 BH)

1,895

1722

(173)

1,895

1722

(173)

1,895

MLV 204-2 to MLV 200-2: Pig Runs - Cleaning / Gauge 12/2/25 (M) (12/2/2025) MLV 204-2 to MLV 200-2: Pig Runs - EMAT 12/18/25 (M) (12/18/2025) MLV 204-2 to MLV 200-2: Pig Runs - MFL-C 12/16/25 (M) (12/16/2025)

Station 245

(segment 245 FH)

1,063

1,063

Station 261 Discharge East (segment 261 FH)

1,045

1,045

Station 307

(segment 307 BH)

1,202

1,202

Station 315

(segment 315 BH)

1,915

1,915

MLV 324

(segment 324 FH)

1,885

1,885

Station 405 HC Line (segment 299 FH)

827

827

						-Primary impact restrictions may be necessary
	TGP - Outage Impact Report					-Major impact restrictions may be necessary
	December 2025 (updated 09/25/25)					-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 (12/1 - 12/7)	Week 2 (12/8 - 12/14)	Week 3 (12/15 - 12/21)	Week 4 (12/22 - 12/28)	Primary Outage(s)
Station # / Lateral		Est. Operational Capacity (Operational Impact) - Thousand Dth				Primary Outage(s)
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.

TSP/TSP Name: 1939164-TENNESSEE GAS PIPELINE	Critical: Y
Notice Type Desc (1): MAINTENANCE	Notice Type Desc (2): MAINTENANCE
Notice Eff Date/Time: 09/25/2025 3:12:13PM	Notice End Date/Time: 09/26/2025 9:00:00am
Post Date/Time: 9/25/2025 3:12:13 PM	Notice ID: 395908
Reqrd Rsp: 1	Rsp Date: 09/25/2025
Notice Stat Desc: INITIATE	Prior Notice:
Subject: TGP Outage Impact Report

Notice Text:

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

Seven Day Forecast (updated 09/25/25)

-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

(9/29)

Tuesday

(9/30)

Wednesday

(10/1)

Thursday

(10/2)

Friday

(10/3)

Saturday

(10/4)

Sunday

(10/5)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490

FH)

564

504

(60)

504

(60)

504

(60)

504

(60)

504

(60)

564

Sta 409: Unit 3A - Engine Inspection (9/29/2025 - 10/3/2025)

MLV 406

(segment 406 BH)

456

445

(11)

445

(11)

445

(11)

445

(11)

445

(11)

445

(11)

445

(11)

MLV 400-1 to MLV 401-1: Immediate Anomaly Remediation (9/24/2025 - 10/10/2025)

Station 1

(segment 101 BH)

400

400

Station 9

(segment 109 BH)

1,028

1,028

Station 25

(segment 125 FH)

714

700

(14)

700

(14)

700

(14)

700

(14)

700

(14)

700

(14)

700

(14)

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

Station 40 South

(segment 132 FH)

912

777

(135)

777

(135)

777

(135)

777

(135)

595

(317)

777

(135)

777

(135)

MLV 39-1 to MLV 40-1S: Class Change (9/26/2025 - 10/3/2025) MLV 39-2 to MLV 40-2S: Class Change (10/3/2025 - 10/10/2025)

Station 47

(segment 143 FH)

1,226

884

(342)

884

(342)

825

(401)

750

(476)

825

(401)

825

(401)

1220

(6)

MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025) MLV 47-1AT to MLV 49-1: Anomaly Remediation (1/6/2025 - 10/31/2025)

MLV 49-1 to MLV 50-1: Anomaly Remediation (3/4/2025 - 10/31/2025) MLV 53-2BREH to MLV 53-2BR: Special Permit Replacement (9/12/2025 - 10/15/2025)

MLV 53-3BR to MLV 54-3BL: HydroTest (8/25/2025 - 10/4/2025) MLV 54-4D TO MLV 63-4S: Pig Re-Runs - EMAT 10/2/25 (10/2/2025)

Sta 54: Unit 6B - Power Overhaul (10/1/2025 - 11/24/2025) Sta 54: Unit 8B - Power Overhaul (10/1/2025 - 11/24/2025)

Station 63

(segment 163 FH)

1,233

1038

(195)

1038

(195)

1038

(195)

1038

(195)

1038

(195)

1038

(195)

1038

(195)

MLV 68-2 to MLV 69-2: Immediate Anomaly Remediation (9/19/2025 - 10/3/2025)

MLV 83-4 to MLV 83-4B: Install Backpressure Regulator (10/1/2025 - 10/15/2025)

MLV 84-4 to MLV 85-4: Class Change Pipe Replacement (9/26/2025 -

10/27/2025)

Station 823

(segment 823 BH)

686

686

Station 834

(segment 834 BH)

679

590

(89)

670

(9)

670

(9)

670

(9)

670

(9)

670

(9)

670

(9)

Sta 834: Annual ESD Test (9/29/2025)

Sta 834: Unit 6A - Overhaul (3/3/2025 - 11/3/2025)

Station 823 Muskrat Line (segment 509 BH)

242

242

200

(42)

242

Sta 823 to MLV 516: Pig Run - Maintenance (M) (10/1/2025)

Station 523

(segment 523 FH)

448

448

350

(98)

448

Sta 523: Suction Strainer (9/30/2025)

Station 534 South of Pool (segment 530 BH)

1,798

1460

(338)

1460

(338)

1460

(338)

1460

(338)

1460

(338)

1460

(338)

1460

(338)

Sta 530: Unit 1A - Bearings (8/25/2025 - 10/10/2025) Sta 530: Unit 2A - Bearings (8/26/2025 - 10/10/2025)

Sta 530: Unit 3A - Crankshaft Replacement (6/9/2025 - 10/31/2026) Sta 530: Unit 4A - Piston (8/25/2025 - 10/3/2025)

Sta 530: Unit 5A - Top-End Overhaul (6/9/2025 - 12/31/2026) Sta 530: Unit 8A - Power Cylinders (9/23/2025 - 10/10/2025)

Sta 534: Unit 6A - Piston Liner & Unloader Replacements (3/25/2025 - 12/5/2025)

Sta 534: Unit 7A - Piston / Liner (5/20/2025 - 12/5/2025)

Station 542

(segment 539 BH)

1,719

1695

(24)

1,719

Sta 542: Unit 4A - Cooler Maintenance (9/16/2025 - 9/29/2025)

MLV 548

(segment 542 BH)

1,597

1375

(222)

1375

(222)

1375

(222)

1375

(222)

1375

(222)

1375

(222)

1375

(222)

Sta 546: Unit 1A - Engine and Compressor Overhaul (8/11/2025 - 10/17/2025) Sta 546: Unit 4A - Engine and Compressor Overhaul (9/29/2025 - 11/7/2025)

Station 860

(segment 548 BH)

1,516

1500

(16)

1500

(16)

1500

(16)

1500

(16)

1500

(16)

1500

(16)

1500

(16)

Sta 550: Unit 2A - Compressor Overhaul (8/25/2025 - 10/17/2025)

Station 860 North (Segment 860 BH)

1,793

1780

(13)

1780

(13)

1780

(13)

1780

(13)

1780

(13)

1780

(13)

1780

(13)

Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2024 - 12/31/2025)

Station 110

(segment 187 BH)

(south thru Kentucky)

2,645

2045

(600)

2045

(600)

2455

(190)

2240

(405)

2455

(190)

2370

(275)

2460

(185)

MLV 106-1D to MLV 110-7: Make Piggable Valve MLV 107-7, MLV 109-7

Replacements & Adding MLV 109-7A (M) (9/3/2025 - 9/30/2025) MLV 108-3 to MLV 109-3: Special Permit Pipe Replacement (9/24/2025 -

10/15/2025)

MLV 96-5 to MLV 102-5: Pig Runs - Caliper 9/30/25 (9/30/2025) Sta 106: Unit 1C - Replace Power Cylinder Bearing #7 (4/14/2025 - 10/17/2025)

Sta 87: Unit 1E - Turbocharger Replacement (9/16/2025 - 10/17/2025) Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 12/31/2025)

Station 114

(segment 114 BH)

920

920

Station 204

(Segment 204 BH)

1,827

1300

(527)

1300

(527)

1300

(527)

1300

(527)

1300

(527)

1300

(527)

1300

(527)

Sta 200: Unit 1B - Maintenance (9/29/2025 - 10/3/2025)

Sta 204: Unit 3A - Change Bearing Fuses (9/29/2025 - 9/30/2025)

Sta 87 to Sta 219: Cumulative Planned/Unplanned Maintenance-204 (8/5/2025 10/19/2025)

Station 219 South (Segment 217 BH)

1,638

1438

(200)

1438

(200)

1438

(200)

1438

(200)

1438

(200)

1438

(200)

1438

(200)

Sta 87 to Sta 219: Cumulative Planned/Unplanned Maintenance-217 (8/4/2025 10/19/2025)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

Seven Day Forecast (updated 09/25/25)

-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

(9/29)

Tuesday

(9/30)

Wednesday

(10/1)

Thursday

(10/2)

Friday

(10/3)

Saturday

(10/4)

Sunday

(10/5)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 245

(segment 245 FH)

997

850

(147)

850

(147)

850

(147)

850

(147)

850

(147)

850

(147)

850

(147)

Sta 241: Unit 1B - 2K Maintenance (9/30/2025 - 10/1/2025)

Sta 249: Unit 1A - Aftercooler Upgrade (9/29/2025 - 10/31/2025)

MLV 256 West

(segment 249 FH)

1,213

1,213

1035

(178)

1,213

MLV 249-2 to MLV 254-2: Efficiency Pigging (10/2/2025)

Station 254

(segment 256 FH)

1,213

1055

(158)

1055

(158)

1055

(158)

1055

(158)

1055

(158)

1055

(158)

1055

(158)

Sta 254: Unit 4A - Replace Power Cylinder Head (5/16/2025 - 11/1/2025) Sta. 254: Bldg A Stack Replacement and Unit Upgrades (7/14/2025 -

11/1/2025)

Station 261 Discharge East (segment 261 FH)

941

941

Station 266A

(segment 282 FH)

371

330

(41)

330

(41)

330

(41)

330

(41)

330

(41)

371

Sta 266A: Annual ESD Tests (M) (9/29/2025 - 9/30/2025)

Sta 266A: Filter / Separator Changeout (M) (10/2/2025 - 10/3/2025) Sta 266A: Protective Device Checks (M) (9/30/2025 - 10/3/2025)

Station 267 South (segment 266 FH)

469

312

(157)

312

(157)

312

(157)

312

(157)

312

(157)

312

(157)

312

(157)

Sta. 267: Bldg A Controls Upgrade (9/2/2025 - 11/26/2025)

Fitchburg Lat to Gloucester (segment 268

FH)

202

140

(62)

140

(62)

202

MLV 267-1A to MLV 268-1: Anomaly Remediation (9/15/2025 - 9/30/2025)

Station 307

(segment 307 BH)

1,150

1,150

Station 315

(segment 315 BH)

1,854

1,854

Station 321

(segment 321 FH)

2,102

1850

(252)

1850

(252)

1850

(252)

1850

(252)

1850

(252)

2,102

Sta 323: Unit 1A - Drive Modernization Upgrade (9/29/2025 - 10/3/2025) Sta. 323A Lackawaxen: Annual ESD Testing (9/29/2025 - 9/30/2025)

MLV 324

(segment 324 FH)

1,767

1515

(252)

1515

(252)

1515

(252)

1515

(252)

1515

(252)

1735

(32)

1735

(32)

Sta 325: Annual ESD Test (9/29/2025 - 10/3/2025) Sta 325: Units 4A - Vibration (9/8/2025 - 10/10/2025)

Station 405 HC Line (segment 299 FH)

803

803

Station 224

(segment 224 FH)

389

200

(189)

200

(189)

200

(189)

200

(189)

200

(189)

200

(189)

200

(189)

Sta 229: Automation Upgrade & Maintenance (M) (8/11/2025 - 10/17/2025)

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

October 2025 (updated 09/25/25)

-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

(9/29 - 10/5)

Week 2

(10/6 - 10/12)

Week 3

(10/13 - 10/19)

Week 4

(10/20 - 10/26)

Week 5

(10/27 - 11/2)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409A (Alamo) (segment 492 FH)

274

274

134

(140)

274

MLV 409A-901 to MLV 409A-902: Pig Run - Cleaning 10/14/25 (M) (10/14/2025)

MLV 409A-901 to MLV 409A-902: Pig Run - Cleaning 10/15/25 (M) (10/15/2025) MLV 409A-901 to MLV 409A-902: Pig Run - MFL-A 10/16/25 (M) (10/16/2025)

Station 409 (Donna Line) (segment 490 FH)

564

564

MLV 406

(segment 406 BH)

456

445

(11)

456

MLV 400-1 to MLV 401-1: Immediate Anomaly Remediation (9/24/2025 - 10/10/2025)

Station 1

(segment 101 BH)

400

400

Station 9

(segment 109 BH)

1,028

845

(183)

1,028

660

(368)

1,028

MLV 9-2 to MLV 5-2: Pig Runs - Maintenance Cleaning 10/23 (M) (10/23/2025) MLV 9-3 to MLV 4-3: Pig Runs - Maintenance Cleaning 10/22 (M) (10/22/2025) Sta 11A: Annual ESD Test (10/7/2025)

Sta 11A: Unit 1A - Safety Devices (10/20/2025 - 10/22/2025)

Station 25

(segment 125 FH)

714

700

(14)

700

(14)

700

(14)

700

(14)

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

Station 40 South

(segment 132 FH)

912

777

(135)

912

637

(275)

747

(165)

MLV 32-2D TO MLV 40-2S: Pig Runs - Maintenance (10/28/2025) MLV 32-3D to MLV 40-3S: Pig Runs - Maintenance (10/21/2025)

MLV 39-2 to MLV 40-2S: Class Change (10/3/2025 - 10/10/2025)

Carthage Lateral (segment 700

FH)

323

215

(108)

323

MLV 706-1 to MLV 700-1: Pig Run - Maintenance (M) (10/6/2025)

Station 40 KN South

(segment 501

FH)

268

268

175

(93)

Sta 500-1 to Sta 823 (MLV 507-1): Pig Run - Maintenance (M) (10/29/2025)

Station 47

(segment 143 FH)

1,226

1220

(6)

1220

(6)

1155

(71)

1160

(66)

MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025) MLV 47-1AT to MLV 49-1: Anomaly Remediation (1/6/2025 - 10/31/2025) MLV 47-2A to MLV 48-2: Pipe Replacement (M) (10/13/2025 - 10/24/2025)

MLV 54-4D TO MLV 63-4S: Pig Runs - Ultra EMAT 10/23/25 (10/23/2025)

Sta 54: Unit 8B - Power Overhaul (10/1/2025 - 11/24/2025)

Station 63

(segment 163 FH)

1,233

1038

(195)

1038

(195)

1088

(145)

848

(385)

MLV 83-4 to MLV 83-4B: Install Backpressure Regulator (10/1/2025 - 10/15/2025)

MLV 84-4 to MLV 85-4: Class Change Pipe Replacement (9/26/2025 - 10/27/2025)

Station 823

(segment 823 BH)

686

686

515

(171)

686

Station 827 (Alexandria): Station Recycle Valve (10/14/2025 - 10/16/2025)

Station 834

(segment 834 BH)

679

670

(9)

670

(9)

670

(9)

664

(15)

Sta 834: Unit 6A - Overhaul (3/3/2025 - 11/3/2025)

Station 847

(segment 847 BH)

284

284

160

(124)

160

(124)

284

MLV 856-1 to MLV 860-1: Pig Runs - Cal / IMU 10/21/25 (10/21/2025)

MLV 856-1 to MLV 860-1: Pig Runs - Cleaning / Gauge 10/16/25 (10/16/2025) MLV 856-1 to MLV 860-1: Pig Runs - MFL-C 10/23/25 (10/23/2025)

Station 534 South of Pool (segment 530 BH)

1,798

1460

(338)

1570

(228)

1570

(228)

1570

(228)

Sta 530: Unit 1A - Bearings (8/25/2025 - 10/10/2025) Sta 530: Unit 2A - Bearings (8/26/2025 - 10/10/2025)

Sta 530: Unit 3A - Crankshaft Replacement (6/9/2025 - 10/31/2026) Sta 530: Unit 5A - Top-End Overhaul (6/9/2025 - 12/31/2026) Sta 530: Unit 8A - Power Cylinders (9/23/2025 - 10/10/2025)

Sta 534: Unit 6A - Piston Liner & Unloader Replacements (3/25/2025 - 12/5/2025)

Sta 534: Unit 7A - Piston / Liner (5/20/2025 - 12/5/2025)

TGP - Outage Impact Report October 2025 (updated 09/25/25)

-Primary impact restrictions may be necessary

-Major impact restrictions may be necessary

-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

(9/29 - 10/5)

Week 2

(10/6 - 10/12)

Week 3

(10/13 - 10/19)

Week 4

(10/20 - 10/26)

Week 5

(10/27 - 11/2)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 542

(segment 539 BH)

1,719

1380

(339)

1380

(339)

845

(874)

845

(874)

MLV 540-1 to MLV 540-1A: Anomaly Remediation (10/10/2025 - 10/20/2025)

MLV 548

(segment 542 BH)

1,597

1375

(222)

1375

(222)

1375

(222)

1375

(222)

Sta 546: Unit 1A - Engine and Compressor Overhaul (8/11/2025 - 10/17/2025) Sta 546: Unit 4A - Engine and Compressor Overhaul (9/29/2025 - 11/7/2025)

Station 860

(segment 548 BH)

1,516

1390

(126)

1500

(16)

1245

(271)

1500

(16)

Station 860 North (Segment 860 BH)

1,793

1675

(118)

1780

(13)

1780

(13)

1780

(13)

MLV 861-1 to MLV 862-1: Install New 30" Valve 861-1A (10/29/2025 - 11/3/2025)

Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2024 - 12/31/2025) Sta. 860: Unit 1C - Engine Inspection/Condition Assessment (10/6/2025 - 10/10/2025)

Sta. 860: Unit 2C - Engine Inspection/Condition Assessment (10/6/2025 - 10/10/2025)

Station 110

(segment 187 BH)

(south thru Kentucky)

2,645

2195

(450)

1810

(835)

2310

(335)

2300

(345)

MLV 106-1 to MLV 111-7: Pig Runs - AFD Combo 10/14/25 (10/14/2025)

MLV 106-1 to MLV 111-7: Pig Runs - Cleaning / Gauge 10/9/25 (10/9/2025) MLV 106-1 to MLV 111-7: Pig Runs - EMAT 10/16/25 (10/16/2025)

MLV 108-2 to MLV 109-2: Special Permit Pipe Replacement (M) (11/1/2025 - 11/30/2025)

MLV 108-3 to MLV 109-3: Special Permit Pipe Replacement (9/24/2025 - 10/15/2025)

MLV 109-2 to 109-2A: Special Permit Pipe Replacement (10/16/2025 - 10/31/2025)

MLV 109-3 to MLV 109-3A: Special Permit Pipe Replacement (10/16/2025 - 10/31/2025)

MLV 96-5 to MLV 102-5: Pig Runs - EMAT 10/7/25 (10/7/2025)

Sta 106 Clay City: Upgrade B Building Jacket Water System (10/20/2025 - 11/7/2025)

Sta 106: Unit 1C - Replace Power Cylinder Bearing #7 (4/14/2025 - 10/17/2025) Sta 110 Morehead: Unit Inspections (10/20/2025 - 10/24/2025)

Sta 87 Portland: Annual ESD Test (10/13/2025 - 10/14/2025)

Station 114

(segment 114 BH)

920

850

(70)

920

700

(220)

840

(80)

Sta 114: Installation of Unit Valves (10/24/2025 - 10/25/2025) Sta 114: Unit 1C - Complete Intallation of Unit Valves (10/27/2025) Sta 114: Unit 2C - Complete Installation of Unit Valves (10/29/2025)

Sta 118A Tyler Mountain: Annual ESD Test (10/27/2025 - 10/29/2025) Sta 118A: Unit 1A - Turbine Exchange (10/6/2025 - 10/11/2025)

Station 204

(Segment 204 BH)

1,827

1300

(527)

1300

(527)

1761

(66)

1371

(456)

MLV 209-4 to MLV 204-4: Pig Runs - Cleaning / Gauge 10/30/25 (10/30/2025) MLV 213-2A to MLV 214-2: Special Permit Replacement (10/9/2025 - 11/19/2025)

Sta 209: Unit 4A - Packing & Starting Air Valves (10/20/2025 - 10/23/2025) Sta 209: Unit 5A - Crankcase Inspection (10/13/2025 - 10/16/2025)

Sta 209: Unit 7A - Packing (10/27/2025 - 10/30/2025)

Sta 87 to Sta 219: Cumulative Planned/Unplanned Maintenance-204 (8/5/2025 - 10/19/2025)

Station 219 South (Segment 217 BH)

1,638

1438

(200)

1438

(200)

1,638

Sta 87 to Sta 219: Cumulative Planned/Unplanned Maintenance-217 (8/4/2025 - 10/19/2025)

Station 245

(segment 245 FH)

997

835

(162)

835

(162)

850

(147)

850

(147)

Sta 241: Unit 1A - Engine Maintenance (10/6/2025 - 10/10/2025) Sta 241: Unit 2A - Engine Maintenance (10/13/2025 - 10/17/2025)

Sta 249: Unit 1A - Aftercooler Upgrade (9/29/2025 - 10/31/2025)

Station 254

(segment 256 FH)

1,213

1055

(158)

1055

(158)

1055

(158)

931

(282)

Sta 254: Unit 4A - Replace Power Cylinder Head (5/16/2025 - 11/1/2025) Sta. 254: Bldg A Stack Replacement and Unit Upgrades (7/14/2025 -

11/1/2025)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

October 2025 (updated 09/25/25)

-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

(9/29 - 10/5)

Week 2

(10/6 - 10/12)

Week 3

(10/13 - 10/19)

Week 4

(10/20 - 10/26)

Week 5

(10/27 - 11/2)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 261 Discharge East (segment 261

FH)

941

930

(11)

590

(351)

941

Sta 261 Agawam: Annual ESD Test (M) (10/13/2025 - 10/15/2025)

Sta 261: Unit 4A - Compressor Rod Packing (M) (10/6/2025 - 10/9/2025)

Station 267 South (segment 266 FH)

469

312

(157)

312

(157)

312

(157)

312

(157)

Sta. 267: Bldg A Controls Upgrade (9/2/2025 - 11/26/2025)

Station 307

(segment 307 BH)

1,150

1,150

940

(210)

1005

(145)

965

(185)

MLV 313-1 to MLV 307-1: Pig Run - Maintenance 10/14 (M) (10/14/2025) Sta 303A: Unit 1A - Water Wash (10/28/2025 - 10/29/2025)

Sta 310: Unit 1A - Water Wash & Borescope (10/21/2025 - 10/22/2025)

Station 315

(segment 315 BH)

1,854

1,854

Station 321

(segment 321 FH)

2,102

1240

(862)

1240

(862)

1240

(862)

2,102

MLV 320-2A to MLV 322-2: Drip Removal 321-2-1 (M) (10/6/2025 - 10/21/2025)

MLV 324

(segment 324 FH)

1,767

1735

(32)

1,767

Sta 325: Units 4A - Vibration (9/8/2025 - 10/10/2025)

Station 405 HC Line (segment 299 FH)

803

803

690

(113)

803

Sta 405A: Unit 1A - 8K Solar Turbine Borescope Inspection (10/15/2025) Sta 405A: Unit 1A - Water Wash (10/14/2025)

Station 224

(segment 224 FH)

389

200

(189)

200

(189)

389

Sta 229: Automation Upgrade & Maintenance (M) (8/11/2025 - 10/17/2025)

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

November 2025 (updated 09/25/25)

-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

(11/3 - 11/9)

Week 2

(11/10 - 11/16)

Week 3

(11/17 - 11/23)

Week 4

(11/24 - 11/30)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490 FH)

585

585

Station 1

(segment 101 BH)

438

438

Station 9

(segment 109 BH)

1,066

1,066

Station 17

(segment 117 FH)

1,143

1130

(13)

1130

(13)

1130

(13)

1,143

MLV 17-1D to MLV 18-1: Anomaly Remediation (11/3/2025 - 11/21/2025)

Station 25

(segment 125 FH)

1,101

1087

(14)

1087

(14)

1087

(14)

1087

(14)

MLV 26-1 Relocation: Highway 59 Widening (11/11/2025 - 12/10/2025) Sta 25: Unit 1C - VFD Replacement (7/16/2025 - 10/31/2026)

Station 47

(segment 143 FH)

1,354

1349

(5)

1349

(5)

1349

(5)

1349

(5)

MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025) MLV 47-3A to MLV 48-3: Pipe Replacement (10/27/2025 - 11/7/2025)

MLV 47-4A to MLV 48-4: Pipe Replacement (M) (11/10/2025 - 11/21/2025) Sta 54: Unit 6B - Power Overhaul (10/1/2025 - 11/24/2025)

Sta 54: Unit 8B - Power Overhaul (10/1/2025 - 11/24/2025)

Station 63

(segment 163 FH)

1,287

887

(400)

1255

(32)

1,287

MLV 63-4D to MLV 71-4S: Pig Runs - EMAT 11/6/25 (11/6/2025)

MLV 63-4D to MLV 71-4S: Pig Runs - MFL-C 11/4/25 (11/4/2025) MLV 71-1D to MLV 77-1A: Pig Re-Runs - MDS 11/12/25 (11/12/2025)

Station 823

(segment 823 BH)

759

215

(544)

759

Sta 827 to Sta 823: Pig Run - Maintenance (M) (11/5/2025) Sta 834 to Sta 827: Maintenance Pig (M) (11/5/2025)

Station 834

(segment 834 BH)

733

718

(15)

733

Sta 834: Unit 6A - Overhaul (3/3/2025 - 11/3/2025)

Station 534 South of Pool (segment 530 BH)

1,632

1485

(147)

1485

(147)

1485

(147)

1485

(147)

Sta 530: Unit 3A - Crankshaft Replacement (6/9/2025 - 10/31/2026) Sta 530: Unit 5A - Top-End Overhaul (6/9/2025 - 12/31/2026)

Sta 534: Unit 6A - Piston Liner & Unloader Replacements (3/25/2025 - 12/5/2025)

Sta 534: Unit 7A - Piston / Liner (5/20/2025 - 12/5/2025)

MLV 548

(segment 542 BH)

1,771

1736

(35)

1,771

Sta 546: Unit 4A - Engine and Compressor Overhaul (9/29/2025 - 11/7/2025)

Station 860

(segment 548 BH)

1,697

1681

(16)

1,697

Sta 550: Unit 3A - Turbocharger Exchange (10/27/2025 - 11/7/2025)

Station 860 North (Segment 860 BH)

2,028

2015

(13)

2015

(13)

1925

(103)

2015

(13)

MLV 560-1 to MLV 563-1: HDD River Crossing & MLV 561-1 & MLV 562-1

Replacement (11/17/2025 - 11/21/2025)

MLV 861-1 to MLV 862-1: Install New 30" Valve 861-1A (10/29/2025 - 11/3/2025)

Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2024 - 12/31/2025)

Station 110

(segment 187 BH)

(south thru Kentucky)

2,775

2055

(720)

2055

(720)

2505

(270)

2515

(260)

MLV 108-2 to MLV 109-2: Special Permit Pipe Replacement (M) (11/1/2025 - 11/30/2025)

MLV 87-4 to MLV 96-4: Pig Runs - Caliper 11/6/25 (M) (11/6/2025)

MLV 87-4 to MLV 96-4: Pig Runs - Cleaning / Gauge 11/4/25 (M) (11/4/2025) MLV 87-4 to MLV 96-4: Pig Runs - EMAT 11/13/25 (M) (11/13/2025)

MLV 90-3 to MLV 91-3: HDD River Crossing Replacement (10/31/2025 - 11/12/2025)

Sta 106 Clay City: Upgrade B Building Jacket Water System (10/20/2025 - 11/7/2025)

Station 114

(segment 114 BH)

948

948

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

November 2025 (updated 09/25/25)

-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

(11/3 - 11/9)

Week 2

(11/10 - 11/16)

Week 3

(11/17 - 11/23)

Week 4

(11/24 - 11/30)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 204

(Segment 204 BH)

1,895

1432

(463)

1456

(439)

1419

(476)

1,895

MLV 209-4 to MLV 204-4: Pig Runs - Cal & IMU 11/04/25 (11/4/2025)

MLV 209-4 to MLV 204-4: Pig Runs - MFL-A 11/06/25 (11/6/2025)

MLV 213-2A to MLV 214-2: Special Permit Replacement (10/9/2025 - 11/19/2025)

MLV 219-4 to MLV 214-4: Pig Run - Cleaning/Gauge 11/11/25 (M) (11/11/2025) MLV 219-4 to MLV 214-4: Pig Run - EMAT 11/20/25 (M) (11/20/2025)

MLV 219-4 to MLV 214-4: Pig Run - IMU/Caliper 11/13/25 (M) (11/13/2025) MLV 219-4 to MLV 214-4: Pig Run - MFL-C 11/18/25 (M) (11/18/2025)

Station 245

(segment 245 FH)

1,063

1,063

Station 261 Discharge East (segment 261 FH)

1,045

1,045

Station 267 South (segment 266 FH)

503

346

(157)

346

(157)

346

(157)

346

(157)

Sta. 267: Bldg A Controls Upgrade (9/2/2025 - 11/26/2025)

Station 307

(segment 307 BH)

1,202

1,202

Station 315

(segment 315 BH)

1,915

1,915

MLV 324

(segment 324 FH)

1,885

1,885

Station 405 HC Line (segment 299 FH)

827

827

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

December 2025 (updated 09/25/25)

-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

(12/1 - 12/7)

Week 2

(12/8 - 12/14)

Week 3

(12/15 - 12/21)

Week 4

(12/22 - 12/28)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490 FH)

585

585

Station 1

(segment 101 BH)

438

438

Station 9

(segment 109 BH)

1,066

1,066

Station 25

(segment 125 FH)

1,101

1087

(14)

1075

(26)

1075

(26)

1075

(26)

MLV 26-1 Relocation: Highway 59 Widening (11/11/2025 - 12/10/2025) MLV 26-1 to MLV 27-1: Install Road Casing (12/6/2025 - 1/19/2026) MLV 26-2 Relocation: Highway 59 Widening (12/11/2025 - 1/19/2026)

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

Station 47

(segment 143 FH)

1,354

1349

(5)

1349

(5)

1349

(5)

1349

(5)

MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025)

Station 63

(segment 163 FH)

1,287

1,287

Station 823

(segment 823 BH)

759

759

Station 534 South of Pool (segment 530 BH)

1,632

1485

(147)

1610

(22)

1610

(22)

1610

(22)

Sta 530: Unit 3A - Crankshaft Replacement (6/9/2025 - 10/31/2026) Sta 530: Unit 5A - Top-End Overhaul (6/9/2025 - 12/31/2026)

Sta 534: Unit 6A - Piston Liner & Unloader Replacements (3/25/2025 - 12/5/2025)

Sta 534: Unit 7A - Piston / Liner (5/20/2025 - 12/5/2025)

MLV 548

(segment 542 BH)

1,771

1,771

Station 860

(segment 548 BH)

1,697

1,697

Station 860 North (Segment 860 BH)

2,028

2015

(13)

2015

(13)

2015

(13)

2015

(13)

Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2024 - 12/31/2025)

Station 110

(segment 187 BH)

(south thru

Kentucky)

2,775

2645

(130)

2645

(130)

2645

(130)

2645

(130)

Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 12/31/2025)

Station 114

(segment 114 BH)

948

948

Station 204

(Segment 204 BH)

1,895

1722

(173)

1,895

1722

(173)

1,895

Station 245

(segment 245 FH)

1,063

1,063

Station 261 Discharge East (segment 261 FH)

1,045

1,045

Station 307

(segment 307 BH)

1,202

1,202

Station 315

(segment 315 BH)

1,915

1,915

MLV 324

(segment 324 FH)

1,885

1,885

Station 405 HC Line (segment 299 FH)

827

827

						-Primary impact restrictions may be necessary
	TGP - Outage Impact Report					-Major impact restrictions may be necessary
	December 2025 (updated 09/25/25)					-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 (12/1 - 12/7)	Week 2 (12/8 - 12/14)	Week 3 (12/15 - 12/21)	Week 4 (12/22 - 12/28)	Primary Outage(s)
Station # / Lateral		Est. Operational Capacity (Operational Impact) - Thousand Dth				Primary Outage(s)
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.

API PipeRiv

TGP Outage Impact Report

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