Tennessee Gas Pipeline Notice 396491

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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: 10/23/2025 3:31:01PM	Notice End Date/Time: 10/24/2025 9:00:00am
Post Date/Time: 10/23/2025 3:31:01 PM	Notice ID: 396491
Reqrd Rsp: 1	Rsp Date: 10/23/2025
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 10/23/25)

-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

(10/27)

Tuesday

(10/28)

Wednesday

(10/29)

Thursday

(10/30)

Friday

(10/31)

Saturday

(11/1)

Sunday

(11/2)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490 FH)

564

400

564

Station 1

(segment 101 BH)

400

400

175

(263)

175

(263)

175

(263)

175

(263)

175

(263)

MLV 404-2 to MLV 405-2: Anomaly Remediation (M) (10/29/2025 - 11/03/2025)

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

912

747

(165)

912

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

Station 40 KN South (segment 501 FH)

268

268

100

(168)

268

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

Station 47

(segment 143 FH)

1,226

884

(342)

884

(342)

884

(342)

884

(342)

884

(342)

747

(479)

747

(479)

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) (11/1/2025 - 11/12/2025)

MLV 49-1 to MLV 50-1: Anomaly Remediation (3/4/2025 - 10/31/2025) MLV 53-3BR to MLV 54-3BL: HydroTest (10/27/2025 - 11/28/2025)

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

1068

(165)

760

(473)

1110

(123)

760

(473)

1110

(123)

1133

(100)

1133

(100)

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 64-2 to MLV 65-2: Immediate Anomaly Remediation (10/8/2025 - 11/15/2025)

MLV 83-3 to MLV 83-3B: Install Backpressure Regulator (10/16/2025 - 10/31/2025)

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

670

(9)

670

(9)

670

(9)

670

(9)

670

(9)

664

(15)

664

(15)

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

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 - 3/31/2026) Sta 530: Unit 2A - Bearings (8/26/2025 - 12/19/2025)

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 530: Unit 8A - Power Cylinders (9/23/2025 - 12/5/2025)

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

845

(874)

845

(874)

845

(874)

845

(874)

845

(874)

1,719

MLV 540-2 to MLV 540-2A: Shallow Pipe Lowering (10/23/2025 - 10/31/2025)

MLV 548

(segment 542 BH)

1,597

1375

(222)

1375

(222)

1375

(222)

1375

(222)

1375

(222)

1,597

Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 10/31/2025)

Station 860

(segment 548 BH)

1,516

1215

(301)

1215

(301)

1215

(301)

1245

(271)

1245

(271)

1500

(16)

1500

(16)

Sta 550 Hamilton: Annual ESD Test & Maintenance (10/27/2025 - 10/31/2025) Sta 550: A building - Replace SLC 500 Remote PLC (10/27/2025 - 10/31/2025) Sta 550: Unit 1B - Safety Device Checks (10/28/2025)

Sta 550: Unit 2A - Compressor Overhaul (8/25/2025 - 12/5/2025)

Sta 555: Unit 3A - Flywheel Belt Tensioner Install (10/27/2025 - 10/29/2025)

Station 860 North (Segment 860 BH)

1,793

1780

(13)

1780

(13)

1700

(93)

1700

(93)

1700

(93)

1700

(93)

1700

(93)

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 (6/17/2025 - 12/31/2025)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

Seven Day Forecast (updated 10/23/25)

-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

(10/27)

Tuesday

(10/28)

Wednesday

(10/29)

Thursday

(10/30)

Friday

(10/31)

Saturday

(11/1)

Sunday

(11/2)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 110

(segment 187 BH)

(south thru Kentucky)

2,645

2280

(365)

2280

(365)

2280

(365)

2280

(365)

2280

(365)

2410

(235)

2410

(235)

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

11/30/2025)

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 90-3 to MLV 91-3: HDD River Crossing Replacement (10/23/2025 - 11/13/2025)

Sta 106 Clay City: Upgrade B Building Jacket Water System (10/27/2025 - 11/21/2025)

Sta 106: Unit 1C - Replace Power Cylinder Bearing #7 (4/14/2025 - 10/31/2025)

Sta 87: Unit 2E - Turbocharger Replacement (10/27/2025 - 11/21/2025) Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 1/30/2026)

Station 114

(segment 114 BH)

920

840

(80)

850

(70)

840

(80)

920

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)

Station 204

(Segment 204 BH)

1,827

1761

(66)

1761

(66)

1761

(66)

1371

(456)

1797

(30)

1664

(163)

1664

(163)

MLV 209-4 to MLV 204-4: Pig Runs - Cleaning / Gauge 10/30/25 (M) (10/30/2025)

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

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

Station 245

(segment 245 FH)

997

970

(27)

970

(27)

970

(27)

970

(27)

970

(27)

997

Sta 241: Unit 1A - Engine Maintenance (10/27/2025 - 10/31/2025)

Station 249

(segment 249 FH)

1,089

942

(147)

942

(147)

942

(147)

942

(147)

942

(147)

1,089

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)

1055

(158)

1055

(158)

931

(282)

1,213

Sta 254: Bldg A Stack Replacement and Unit Upgrades (7/14/2025 - 11/1/2025)

Sta 254: Unit 4A - Replace Power Cylinder Head (5/16/2025 - 11/1/2025)

Station 261 Discharge East (segment 261 FH)

941

941

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)

Station 307

(segment 307 BH)

1,150

1,150

965

(185)

965

(185)

1,150

Sta 303A: Unit 1A - Water Wash (10/28/2025 - 10/29/2025)

Station 315

(segment 315 BH)

1,854

1690

(164)

1,854

Sta 315: Unit 2A - Inspect Bleed Duct Line (10/27/2025)

MLV 324

(segment 324 FH)

1,767

1510

(257)

1510

(257)

1510

(257)

1510

(257)

1510

(257)

1517

(250)

1517

(250)

Sta 325: Unit 3A - Engine ESD Valve (10/2/2025 - 11/3/2025) Sta 325: Units 4A - Vibration (9/8/2025 - 11/3/2025)

Station 405 HC Line (segment 299 FH)

803

803

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 10/23/25)

-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 409A (Alamo) (segment 492 FH)

295

295

145

(150)

295

MLV 409A-901 to MLV 409A-902: Pig Run - Cleaning 11/18/25 (M) (11/18/2025) MLV 409A-901 to MLV 409A-902: Pig Run - MFL-A 11/19/25 (M) (11/19/2025)

Station 409 (Donna Line) (segment 490 FH)

585

585

Station 1

(segment 101 BH)

438

175

(263)

180

(258)

180

(258)

438

MLV 403-2 to MLV 404-2: Anomaly Remediation (M) (11/4/2025 - 11/21/2025) MLV 404-2 to MLV 405-2: Anomaly Remediation (M) (10/29/2025 - 11/03/2025)

MLV 4

(segment 101 FH)

1,033

1,033

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 40 South

(segment 132 FH)

1,299

1280

(19)

1,299

MLV 32-3D to MLV 40-3S: Pig Runs - Maintenance (11/4/2025)

Station 47

(segment 143 FH)

1,354

875

(479)

875

(479)

890

(464)

890

(464)

MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025) MLV 47-2A to MLV 48-2: Pipe Replacement (M) (11/1/2025 - 11/12/2025) MLV 47-3A to MLV 48-3: Pipe Replacement (11/25/2025 - 12/10/2025) MLV 47-4A to MLV 48-4: Pipe Replacement (M) (11/13/2025 - 11/24/2025)

MLV 53-3BR to MLV 54-3BL: HydroTest (10/27/2025 - 11/28/2025)

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

810

(477)

1185

(102)

1135

(152)

1135

(152)

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 64-2 to MLV 65-2: Immediate Anomaly Remediation (10/8/2025 - 11/15/2025)

MLV 65-2 to MLV 66-2: Immediate Anomaly Remediation (11/17/2025 - 11/30/2025)

MLV 66-2 to MLV 67-2: Immediate Anomaly Remediation (11/17/2025 - 11/30/2025)

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

Station 823

(segment 823 BH)

759

145

(614)

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 827 (Alexandria): Station Recycle Valve (11/4/2025 - 11/6/2025)

Station 834

(segment 834 BH)

733

718

(15)

733

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

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

November 2025 (updated 10/23/25)

-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 534 South of Pool (segment 530 BH)

1,632

1294

(338)

1294

(338)

1294

(338)

1294

(338)

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

Sta 530: Unit 2A - Bearings (8/26/2025 - 12/19/2025)

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 530: Unit 8A - Power Cylinders (9/23/2025 - 12/5/2025)

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)

1,905

1,905

1865

(40)

1,905

Sta 542: Unit 1B - Safety Device Testing (11/10/2025 - 11/14/2025)

MLV 548

(segment 542 BH)

1,771

1736

(35)

1736

(35)

1736

(35)

1736

(35)

Sta 546: Unit 4A - Engine and Compressor Overhaul (11/3/2025 - 12/12/2025)

Station 860

(segment 548 BH)

1,697

785

(912)

1681

(16)

1681

(16)

1681

(16)

MLV 546-1 to MLV 542-1: Pig Runs - Maintenance (11/5/2025) MLV 546-2 to MLV 542-2: Pig Runs - Maintenance (11/6/2025) MLV 546-3 to MLV 544-3: Pig Runs - Maintenance (11/4/2025) Sta 550: Unit 2A - Compressor Overhaul (8/25/2025 - 12/5/2025)

Station 860 North (Segment 860 BH)

2,028

1920

(108)

1910

(118)

1575

(453)

2028

(0)

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 (6/17/2025 - 12/31/2025) Sta 860: Unit 1C - 4K Turbine Water Wash (11/3/2025 - 11/4/2025)

Sta 860: Unit 1C - Engine Inspection/Condition Assessment (11/3/2025 - 11/4/2025)

Sta 860: Unit 2C - 4K Turbine Water Wash (11/5/2025 - 11/6/2025) Sta 860: Unit 2C - Engine Inspection/Condition Assessment (11/5/2025 -

11/6/2025)

Sta. 860: A Building - replace discharge valves (11/11/2025 - 11/12/2025)

Station 110

(segment 187 BH)

(south thru Kentucky)

2,775

2175

(600)

2175

(600)

2540

(235)

2645

(130)

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 - 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 (10/23/2025 - 11/13/2025)

Sta 106 Clay City: Upgrade B Building Jacket Water System (10/27/2025 - 11/21/2025)

Sta 87: Unit 2E - Turbocharger Replacement (10/27/2025 - 11/21/2025) Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 1/30/2026)

Station 114

(segment 114 BH)

948

948

Station 204

(Segment 204 BH)

1,895

1432

(463)

1459

(436)

1419

(476)

1,895

MLV 209-4 to MLV 204-4: Pig Runs - Cal & IMU 11/04/25 (M) (11/4/2025) MLV 209-4 to MLV 204-4: Pig Runs - MFL-A 11/06/25 (M) (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)

Sta 209: Unit 12A - P3L pull piston and inspect rings and cylinder (11/10/2025 - 11/13/2025)

Station 245

(segment 245 FH)

1,063

1,063

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

November 2025 (updated 10/23/25)

-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 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

1145

(57)

1,202

Sta 307: Unit 2A - Engine Maintenance (11/3/2025 - 11/7/2025)

Station 315

(segment 315 BH)

1,915

1,915

MLV 324

(segment 324 FH)

1,885

1635

(250)

1,885

Sta 325: Unit 3A - Engine ESD Valve (10/2/2025 - 11/3/2025) Sta 325: Units 4A - Vibration (9/8/2025 - 11/3/2025)

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 10/23/25)

-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

1275

(79)

1275

(79)

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 (11/25/2025 - 12/10/2025)

Station 63

(segment 163 FH)

1,287

1,287

Station 823

(segment 823 BH)

759

759

Station 847

(segment 847 BH)

338

200

(138)

200

(138)

338

MLV 856-1 to MLV 860-1: Pig Runs - Cal / IMU 12/9/25 (12/9/2025)

MLV 856-1 to MLV 860-1: Pig Runs - Cleaning / Gauge 12/4/25 (12/4/2025) MLV 856-1 to MLV 860-1: Pig Runs - MFL-C 12/11/25 (12/11/2025)

Station 534 South of Pool (segment 530 BH)

1,632

1294

(338)

1610

(22)

1610

(22)

1610

(22)

Sta 530: Unit 1A - Bearings (8/25/2025 - 3/31/2026) Sta 530: Unit 2A - Bearings (8/26/2025 - 12/19/2025)

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 530: Unit 8A - Power Cylinders (9/23/2025 - 12/5/2025)

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)

MLV 548

(segment 542 BH)

1,771

1736

(35)

1736

(35)

1,771

Sta 546: Unit 4A - Engine and Compressor Overhaul (11/3/2025 - 12/12/2025)

Station 860

(segment 548 BH)

1,697

1681

(16)

1681

(16)

1681

(16)

1,697

Sta 550: Unit 2A - Compressor Overhaul (8/25/2025 - 12/5/2025) Sta 550: Unit 3A - Turbocharger Exchange (12/8/2025 - 12/19/2025)

Station 860 North (Segment 860 BH)

2,028

2015

(13)

2015

(13)

2015

(13)

2015

(13)

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

Station 110

(segment 187 BH)

(south thru

Kentucky)

2,775

2600

(175)

2600

(175)

2645

(130)

2645

(130)

Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 1/30/2026) Sta 96: Unit 1D - Compressor Valves (12/1/2025 - 12/12/2025)

Station 114

(segment 114 BH)

948

948

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

December 2025 (updated 10/23/25)

-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 204

(Segment 204 BH)

1,895

1,895

1722

(173)

1,895

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

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

January 2026 (updated 10/23/25)

-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

(12/29 - 1/4)

Week 2

(1/5 - 1/11)

Week 3

(1/12 - 1/18)

Week 4

(1/19 - 1/25)

Week 5

(1/26 - 2/1)

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

1075

(26)

1075

(26)

1075

(26)

855

(246)

855

(246)

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) MLV 26-3 Relocation: Highway 59 Widening (M) (1/20/2026 - 2/19/2026) Sta 25: Unit 1C - VFD Replacement (7/16/2025 - 10/31/2026)

Station 47

(segment 143 FH)

1,354

1349

(5)

1,354

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

1610

(22)

1610

(22)

1610

(22)

1610

(22)

1610

(22)

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

1,771

1,771

Station 860

(segment 548 BH)

1,697

1,697

Station 860 North (Segment 860 BH)

2,028

2015

(13)

2,028

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

Station 110

(segment 187 BH)

(south thru

Kentucky)

2,775

2535

(240)

2645

(130)

2645

(130)

2645

(130)

2645

(130)

Sta 871: Unit 1A - 3Q Engine Inspection (12/31/2025) Sta 871: Unit 2A - 3Q Engine Inspection (12/31/2025)

Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 1/30/2026)

Station 114

(segment 114 BH)

948

948

Station 204

(Segment 204 BH)

1,895

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

							-Primary impact restrictions may be necessary
		TGP - Outage Impact Report					-Major impact restrictions may be necessary
	January 2026 (updated 10/23/25)						-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 (12/29 - 1/4)	Week 2 (1/5 - 1/11)	Week 3 (1/12 - 1/18)	Week 4 (1/19 - 1/25)	Week 5 (1/26 - 2/1)	Primary Outage(s)
Station # / Lateral		Est. Operational Capacity (Operational Impact) - Thousand Dth					Primary Outage(s)
Station 315 (segment 315 BH)	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
Station 405 HC Line (segment 299 FH)	827	827	827	827	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.

TSP/TSP Name: 1939164-TENNESSEE GAS PIPELINE	Critical: Y
Notice Type Desc (1): MAINTENANCE	Notice Type Desc (2): MAINTENANCE
Notice Eff Date/Time: 10/23/2025 3:31:01PM	Notice End Date/Time: 10/24/2025 9:00:00am
Post Date/Time: 10/23/2025 3:31:01 PM	Notice ID: 396491
Reqrd Rsp: 1	Rsp Date: 10/23/2025
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 10/23/25)

-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

(10/27)

Tuesday

(10/28)

Wednesday

(10/29)

Thursday

(10/30)

Friday

(10/31)

Saturday

(11/1)

Sunday

(11/2)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490 FH)

564

400

564

Station 1

(segment 101 BH)

400

400

175

(263)

175

(263)

175

(263)

175

(263)

175

(263)

MLV 404-2 to MLV 405-2: Anomaly Remediation (M) (10/29/2025 - 11/03/2025)

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

912

747

(165)

912

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

Station 40 KN South (segment 501 FH)

268

268

100

(168)

268

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

Station 47

(segment 143 FH)

1,226

884

(342)

884

(342)

884

(342)

884

(342)

884

(342)

747

(479)

747

(479)

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) (11/1/2025 - 11/12/2025)

MLV 49-1 to MLV 50-1: Anomaly Remediation (3/4/2025 - 10/31/2025) MLV 53-3BR to MLV 54-3BL: HydroTest (10/27/2025 - 11/28/2025)

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

1068

(165)

760

(473)

1110

(123)

760

(473)

1110

(123)

1133

(100)

1133

(100)

MLV 83-3 to MLV 83-3B: Install Backpressure Regulator (10/16/2025 - 10/31/2025)

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

670

(9)

670

(9)

670

(9)

670

(9)

670

(9)

664

(15)

664

(15)

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

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 - 3/31/2026) Sta 530: Unit 2A - Bearings (8/26/2025 - 12/19/2025)

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 530: Unit 8A - Power Cylinders (9/23/2025 - 12/5/2025)

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

845

(874)

845

(874)

845

(874)

845

(874)

845

(874)

1,719

MLV 540-2 to MLV 540-2A: Shallow Pipe Lowering (10/23/2025 - 10/31/2025)

MLV 548

(segment 542 BH)

1,597

1375

(222)

1375

(222)

1375

(222)

1375

(222)

1375

(222)

1,597

Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 10/31/2025)

Station 860

(segment 548 BH)

1,516

1215

(301)

1215

(301)

1215

(301)

1245

(271)

1245

(271)

1500

(16)

1500

(16)

Sta 550: Unit 2A - Compressor Overhaul (8/25/2025 - 12/5/2025)

Sta 555: Unit 3A - Flywheel Belt Tensioner Install (10/27/2025 - 10/29/2025)

Station 860 North (Segment 860 BH)

1,793

1780

(13)

1780

(13)

1700

(93)

1700

(93)

1700

(93)

1700

(93)

1700

(93)

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 (6/17/2025 - 12/31/2025)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

Seven Day Forecast (updated 10/23/25)

-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

(10/27)

Tuesday

(10/28)

Wednesday

(10/29)

Thursday

(10/30)

Friday

(10/31)

Saturday

(11/1)

Sunday

(11/2)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 110

(segment 187 BH)

(south thru Kentucky)

2,645

2280

(365)

2280

(365)

2280

(365)

2280

(365)

2280

(365)

2410

(235)

2410

(235)

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

11/30/2025)

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 90-3 to MLV 91-3: HDD River Crossing Replacement (10/23/2025 - 11/13/2025)

Sta 106 Clay City: Upgrade B Building Jacket Water System (10/27/2025 - 11/21/2025)

Sta 106: Unit 1C - Replace Power Cylinder Bearing #7 (4/14/2025 - 10/31/2025)

Sta 87: Unit 2E - Turbocharger Replacement (10/27/2025 - 11/21/2025) Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 1/30/2026)

Station 114

(segment 114 BH)

920

840

(80)

850

(70)

840

(80)

920

Station 204

(Segment 204 BH)

1,827

1761

(66)

1761

(66)

1761

(66)

1371

(456)

1797

(30)

1664

(163)

1664

(163)

MLV 209-4 to MLV 204-4: Pig Runs - Cleaning / Gauge 10/30/25 (M) (10/30/2025)

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

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

Station 245

(segment 245 FH)

997

970

(27)

970

(27)

970

(27)

970

(27)

970

(27)

997

Sta 241: Unit 1A - Engine Maintenance (10/27/2025 - 10/31/2025)

Station 249

(segment 249 FH)

1,089

942

(147)

942

(147)

942

(147)

942

(147)

942

(147)

1,089

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)

1055

(158)

1055

(158)

931

(282)

1,213

Sta 254: Bldg A Stack Replacement and Unit Upgrades (7/14/2025 - 11/1/2025)

Sta 254: Unit 4A - Replace Power Cylinder Head (5/16/2025 - 11/1/2025)

Station 261 Discharge East (segment 261 FH)

941

941

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)

Station 307

(segment 307 BH)

1,150

1,150

965

(185)

965

(185)

1,150

Sta 303A: Unit 1A - Water Wash (10/28/2025 - 10/29/2025)

Station 315

(segment 315 BH)

1,854

1690

(164)

1,854

Sta 315: Unit 2A - Inspect Bleed Duct Line (10/27/2025)

MLV 324

(segment 324 FH)

1,767

1510

(257)

1510

(257)

1510

(257)

1510

(257)

1510

(257)

1517

(250)

1517

(250)

Sta 325: Unit 3A - Engine ESD Valve (10/2/2025 - 11/3/2025) Sta 325: Units 4A - Vibration (9/8/2025 - 11/3/2025)

Station 405 HC Line (segment 299 FH)

803

803

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 10/23/25)

-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 409A (Alamo) (segment 492 FH)

295

295

145

(150)

295

MLV 409A-901 to MLV 409A-902: Pig Run - Cleaning 11/18/25 (M) (11/18/2025) MLV 409A-901 to MLV 409A-902: Pig Run - MFL-A 11/19/25 (M) (11/19/2025)

Station 409 (Donna Line) (segment 490 FH)

585

585

Station 1

(segment 101 BH)

438

175

(263)

180

(258)

180

(258)

438

MLV 403-2 to MLV 404-2: Anomaly Remediation (M) (11/4/2025 - 11/21/2025) MLV 404-2 to MLV 405-2: Anomaly Remediation (M) (10/29/2025 - 11/03/2025)

MLV 4

(segment 101 FH)

1,033

1,033

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 40 South

(segment 132 FH)

1,299

1280

(19)

1,299

MLV 32-3D to MLV 40-3S: Pig Runs - Maintenance (11/4/2025)

Station 47

(segment 143 FH)

1,354

875

(479)

875

(479)

890

(464)

890

(464)

MLV 53-3BR to MLV 54-3BL: HydroTest (10/27/2025 - 11/28/2025)

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

810

(477)

1185

(102)

1135

(152)

1135

(152)

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 64-2 to MLV 65-2: Immediate Anomaly Remediation (10/8/2025 - 11/15/2025)

MLV 65-2 to MLV 66-2: Immediate Anomaly Remediation (11/17/2025 - 11/30/2025)

MLV 66-2 to MLV 67-2: Immediate Anomaly Remediation (11/17/2025 - 11/30/2025)

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

Station 823

(segment 823 BH)

759

145

(614)

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 827 (Alexandria): Station Recycle Valve (11/4/2025 - 11/6/2025)

Station 834

(segment 834 BH)

733

718

(15)

733

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

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

November 2025 (updated 10/23/25)

-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 534 South of Pool (segment 530 BH)

1,632

1294

(338)

1294

(338)

1294

(338)

1294

(338)

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

Sta 530: Unit 2A - Bearings (8/26/2025 - 12/19/2025)

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 530: Unit 8A - Power Cylinders (9/23/2025 - 12/5/2025)

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)

1,905

1,905

1865

(40)

1,905

Sta 542: Unit 1B - Safety Device Testing (11/10/2025 - 11/14/2025)

MLV 548

(segment 542 BH)

1,771

1736

(35)

1736

(35)

1736

(35)

1736

(35)

Sta 546: Unit 4A - Engine and Compressor Overhaul (11/3/2025 - 12/12/2025)

Station 860

(segment 548 BH)

1,697

785

(912)

1681

(16)

1681

(16)

1681

(16)

Station 860 North (Segment 860 BH)

2,028

1920

(108)

1910

(118)

1575

(453)

2028

(0)

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 (6/17/2025 - 12/31/2025) Sta 860: Unit 1C - 4K Turbine Water Wash (11/3/2025 - 11/4/2025)

Sta 860: Unit 1C - Engine Inspection/Condition Assessment (11/3/2025 - 11/4/2025)

Sta 860: Unit 2C - 4K Turbine Water Wash (11/5/2025 - 11/6/2025) Sta 860: Unit 2C - Engine Inspection/Condition Assessment (11/5/2025 -

11/6/2025)

Sta. 860: A Building - replace discharge valves (11/11/2025 - 11/12/2025)

Station 110

(segment 187 BH)

(south thru Kentucky)

2,775

2175

(600)

2175

(600)

2540

(235)

2645

(130)

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 - 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 (10/23/2025 - 11/13/2025)

Sta 106 Clay City: Upgrade B Building Jacket Water System (10/27/2025 - 11/21/2025)

Sta 87: Unit 2E - Turbocharger Replacement (10/27/2025 - 11/21/2025) Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 1/30/2026)

Station 114

(segment 114 BH)

948

948

Station 204

(Segment 204 BH)

1,895

1432

(463)

1459

(436)

1419

(476)

1,895

MLV 209-4 to MLV 204-4: Pig Runs - Cal & IMU 11/04/25 (M) (11/4/2025) MLV 209-4 to MLV 204-4: Pig Runs - MFL-A 11/06/25 (M) (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)

Sta 209: Unit 12A - P3L pull piston and inspect rings and cylinder (11/10/2025 - 11/13/2025)

Station 245

(segment 245 FH)

1,063

1,063

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

November 2025 (updated 10/23/25)

-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 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

1145

(57)

1,202

Sta 307: Unit 2A - Engine Maintenance (11/3/2025 - 11/7/2025)

Station 315

(segment 315 BH)

1,915

1,915

MLV 324

(segment 324 FH)

1,885

1635

(250)

1,885

Sta 325: Unit 3A - Engine ESD Valve (10/2/2025 - 11/3/2025) Sta 325: Units 4A - Vibration (9/8/2025 - 11/3/2025)

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 10/23/25)

-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)

Station 47

(segment 143 FH)

1,354

1275

(79)

1275

(79)

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 (11/25/2025 - 12/10/2025)

Station 63

(segment 163 FH)

1,287

1,287

Station 823

(segment 823 BH)

759

759

Station 847

(segment 847 BH)

338

200

(138)

200

(138)

338

MLV 856-1 to MLV 860-1: Pig Runs - Cal / IMU 12/9/25 (12/9/2025)

MLV 856-1 to MLV 860-1: Pig Runs - Cleaning / Gauge 12/4/25 (12/4/2025) MLV 856-1 to MLV 860-1: Pig Runs - MFL-C 12/11/25 (12/11/2025)

Station 534 South of Pool (segment 530 BH)

1,632

1294

(338)

1610

(22)

1610

(22)

1610

(22)

Sta 530: Unit 1A - Bearings (8/25/2025 - 3/31/2026) Sta 530: Unit 2A - Bearings (8/26/2025 - 12/19/2025)

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 530: Unit 8A - Power Cylinders (9/23/2025 - 12/5/2025)

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)

MLV 548

(segment 542 BH)

1,771

1736

(35)

1736

(35)

1,771

Sta 546: Unit 4A - Engine and Compressor Overhaul (11/3/2025 - 12/12/2025)

Station 860

(segment 548 BH)

1,697

1681

(16)

1681

(16)

1681

(16)

1,697

Sta 550: Unit 2A - Compressor Overhaul (8/25/2025 - 12/5/2025) Sta 550: Unit 3A - Turbocharger Exchange (12/8/2025 - 12/19/2025)

Station 860 North (Segment 860 BH)

2,028

2015

(13)

2015

(13)

2015

(13)

2015

(13)

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

Station 110

(segment 187 BH)

(south thru

Kentucky)

2,775

2600

(175)

2600

(175)

2645

(130)

2645

(130)

Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 1/30/2026) Sta 96: Unit 1D - Compressor Valves (12/1/2025 - 12/12/2025)

Station 114

(segment 114 BH)

948

948

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

December 2025 (updated 10/23/25)

-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 204

(Segment 204 BH)

1,895

1,895

1722

(173)

1,895

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

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

January 2026 (updated 10/23/25)

-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

(12/29 - 1/4)

Week 2

(1/5 - 1/11)

Week 3

(1/12 - 1/18)

Week 4

(1/19 - 1/25)

Week 5

(1/26 - 2/1)

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

1075

(26)

1075

(26)

1075

(26)

855

(246)

855

(246)

Station 47

(segment 143 FH)

1,354

1349

(5)

1,354

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

1610

(22)

1610

(22)

1610

(22)

1610

(22)

1610

(22)

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

1,771

1,771

Station 860

(segment 548 BH)

1,697

1,697

Station 860 North (Segment 860 BH)

2,028

2015

(13)

2,028

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

Station 110

(segment 187 BH)

(south thru

Kentucky)

2,775

2535

(240)

2645

(130)

2645

(130)

2645

(130)

2645

(130)

Sta 871: Unit 1A - 3Q Engine Inspection (12/31/2025) Sta 871: Unit 2A - 3Q Engine Inspection (12/31/2025)

Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 1/30/2026)

Station 114

(segment 114 BH)

948

948

Station 204

(Segment 204 BH)

1,895

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

							-Primary impact restrictions may be necessary
		TGP - Outage Impact Report					-Major impact restrictions may be necessary
	January 2026 (updated 10/23/25)						-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 (12/29 - 1/4)	Week 2 (1/5 - 1/11)	Week 3 (1/12 - 1/18)	Week 4 (1/19 - 1/25)	Week 5 (1/26 - 2/1)	Primary Outage(s)
Station # / Lateral		Est. Operational Capacity (Operational Impact) - Thousand Dth					Primary Outage(s)
Station 315 (segment 315 BH)	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
Station 405 HC Line (segment 299 FH)	827	827	827	827	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.

Tennessee Gas Pipeline Notice 396491

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