TGP Outage Impact Report

Tennessee Gas Pipeline 5d 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: 05/21/2026 2:35:19PM	Notice End Date/Time: 05/22/2026 9:00:00am
Post Date/Time: 5/21/2026 2:35:19 PM	Notice ID: 401497
Reqrd Rsp: 1	Rsp Date: 05/21/2026
Notice Stat Desc: INITIATE	Prior Notice:
Subject: TGP Outage Impact Report

Notice Text:

TGP - Outage Impact Report Seven Day Forecast (updated 05/21/26)

-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 / Seg

Est Nominal

Operating Capacity (Thousand Dth)

Monday

(5/25)

Tuesday

(5/26)

Wednesday

(5/27)

Thursday

(5/28)

Friday

(5/29)

Saturday

(5/30)

Sunday

(5/31)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409

(Donna Line) (segment 490 FH)

564

564

Station 1

(segment 101 BH)

399

399

Station 9

(segment 109 FH)

969

969

Station 17

(segment 117 FH)

1,122

1104

(18)

1104

(18)

1104

(18)

1104

(18)

1104

(18)

1104

(18)

1104

(18)

MLV 19-2 TO MLV 20-2A: Pipe Replacement (M) (4/28/2026 - 6/18/2026)

Station 25

(segment 125 FH)

1,078

1,078

Station 47

(segment 143 FH)

1,343

1025

(318)

1025

(318)

1025

(318)

1025

(318)

1025

(318)

1330

(13)

1330

(13)

MLV 55-1 to MLV 56-1: PHMSA Immediate (5/11/2026 - 7/31/2026)

Sta. 47: Scrubber/Filter/Separator Cleaning/Inspection/Changeout (5/25/2026 - 5/29/2026)

Station 63

(segment 163 FH)

1,242

1117

(125)

1117

(125)

1117

(125)

1117

(125)

1117

(125)

1117

(125)

1117

(125)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026)

Station 823

(segment 823 BH)

734

734

Station 834

(segment 834 BH)

683

670

(13)

670

(13)

670

(13)

670

(13)

670

(13)

670

(13)

670

(13)

Sta 834: Unit 1A - Turbocharger (5/18/2026 - 6/1/2026) Sta 834: Unit 6A - Overhaul (3/3/2025 - 5/31/2026)

Station 527

(segment 527 BH)

2,395

2340

(55)

2340

(55)

2340

(55)

2340

(55)

2340

(55)

2340

(55)

2340

(55)

Sta 527: Unit 1C - High Vibration (2/4/2026 - 5/31/2026)

Station 534 South of Pool (segment 530 BH)

1,550

1528

(22)

1528

(22)

1528

(22)

1528

(22)

1528

(22)

1528

(22)

1528

(22)

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

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 534: Unit 6A - Piston Liner & Unloader Replacements (6/30/2025 -

7/10/2026)

MLV 548

(segment 542 BH)

1,647

1435

(212)

1435

(212)

1435

(212)

1435

(212)

1435

(212)

1435

(212)

1435

(212)

Sta 542: Unit 1A - Emergent Repair (1/1/2026 - 6/14/2026) Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/14/2026) Sta 542: Unit 3A - Emergent Repair (3/26/2026 - 6/28/2026)

Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 6/19/2026)

Station 860

(segment 548 BH)

1,593

1580

(13)

1580

(13)

1580

(13)

1580

(13)

1580

(13)

1580

(13)

1580

(13)

MLV 552-2 to MLV 553-2: Anomaly Remediation (5/26/2026 - 5/30/2026) Sta 550: Unit 3A - Overhaul (4/6/2026 - 5/28/2026)

Sta 555: Unit 5A - Foundation Regrout (1/20/2026 - 6/19/2026)

Station 860 North (Segment 860

BH)

1,874

1846

(28)

1846

(28)

1846

(28)

1846

(28)

1846

(28)

1846

(28)

1846

(28)

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

Station 110

(segment 187 BH)

(south thru Kentucky)

2,685

1900

(785)

1742

(943)

1900

(785)

1900

(785)

1900

(785)

1900

(785)

2392

(293)

MLV 104-1 to MLV 105-1: Anomaly Remediation (5/26/2026 - 6/26/2026) MLV 106-3 to MLV 108-3: Valve Replacement (5/23/2026 - 5/27/2026)

MLV 109-3: Crossover to Ln 4 Valve Replacements (5/19/2026 - 5/27/2026) MLV 109-3: Crossover to Ln 5 Valve Replacements (5/28/2026 - 6/11/2026) MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 87-3 to MLV 96-3: Pig Run - MDS (5/26/2026)

MLV 874-2A to MLV 874-2B: Anomaly Remediation (5/19/2026 - 5/30/2026) MLV 874-2B to MLV 874-2: Anomaly Remediation (5/19/2026 - 5/30/2026) Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 5/31/2026)

Sta 871: Unit 3A - Main Bearing (8/22/2025 - 5/31/2026)

Station 114

(segment 114 BH)

907

907

Station 204

(Segment 204 BH)

1,828

1,828

1270

(558)

1270

(558)

1270

(558)

1270

(558)

1270

(558)

MLV 204-4 to MLV 206-4: Replace MLV 205-4 (M) (5/27/2026 - 6/10/2026) MLV 205-4 to MLV 207-4: Replace MLV 206-4 (M) (5/27/2026 - 6/10/2026) MLV 206-4 to MLV 208-4: Replace MLV 207-4 (M) (5/27/2026 - 6/10/2026)

MLV 207-4 to MLV 209-4: Replace MLV 208-4 (M) (5/27/2026 - 6/10/2026)

Station 245

(segment 245 FH)

986

970

(16)

970

(16)

970

(16)

970

(16)

970

(16)

970

(16)

970

(16)

Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026)

Station 254

(segment 256 FH)

1,203

1,203

630

(573)

630

(573)

1,203

MLV 254-2 to MLV 261-2: Pig Run - Cal/IMU/MFL-A Combo (5/28/2026)

MLV 254-2 to MLV 261-2: Pig Run - Gauge/Cleaning tool (5/27/2026)

Station 261 Discharge East (segment 261

FH)

888

888

Station 307

(segment 307 BH)

1,153

1,153

965

(188)

895

(258)

895

(258)

895

(258)

1090

(63)

1090

(63)

MLV 300-1A to MLV 301-1: Anomaly Remediation (5/27/2026 - 6/2/2026) Sta 303A: Annual ESD Test & Maintenance (5/26/2026 - 5/29/2026)

Station 315

(segment 315 BH)

1,823

1,823

1400

(423)

1,823

Sta 315 Wellsboro: Annual ESD Test (5/26/2026)

MLV 324

(segment 324 FH)

1,767

1,767

Station 405 HC Line (segment 299

FH)

794

794

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.

TGP - Outage Impact Report June 2026 (updated 05/21/26)

-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

(6/1 - 6/7)

Week 2

(6/8 - 6/14)

Week 3

(6/15 - 6/21)

Week 4

(6/22 - 6/28)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409A (Alamo) (segment 492 FH)

274

274

125

(149)

MLV 409A-101.1 to MLV 409A-103: Pig Runs - Cleaning / Gauge (M) (6/23/2026) MLV 409A-101.1 to MLV 409A-103: Pig Runs - Cleaning / Gauge (M) (6/24/2026) MLV 409A-101.1 to MLV 409A-103: Pig Runs - EMAT (M) (6/26/2026)

MLV 409A-101.1 to MLV 409A-103: Pig Runs - MFL-C (M) (6/25/2026)

Station 409 (Donna Line) (segment 490

FH)

564

564

Station 1

(segment 101 BH)

399

399

Station 9

(segment 109 FH)

969

969

Station 17

(segment 117 FH)

1,122

1104

(18)

1104

(18)

1000

(122)

1000

(122)

MLV 17-3DL to MLV 18-3A: Anomaly Remediation (6/15/2026 - 6/22/2026) MLV 19-2 TO MLV 20-2A: Pipe Replacement (M) (4/28/2026 - 6/18/2026)

MLV 19-3 TO MLV 20-3A: Pipe Replacement (M) (6/20/2026 - 7/22/2026)

Station 25

(segment 125 FH)

1,078

1055

(23)

1055

(23)

1055

(23)

1055

(23)

MLV 25-2 to MLV 26-2: Pipe Replacement (6/25/2026 - 7/13/2026) MLV 26-1 Relocation: Highway 59 Widening (6/6/2026 - 6/23/2026)

MLV 26-2 Relocation: Highway 59 Widening (6/25/2026 - 7/13/2026)

Station 47

(segment 143 FH)

1,343

1330

(13)

1300

(43)

1330

(13)

1330

(13)

MLV 40-3D to MLV 47-3S: Pig Run - Maintenance Cleaning (6/9/2026) MLV 55-1 to MLV 56-1: PHMSA Immediate (5/11/2026 - 7/31/2026)

Station 63

(segment 163 FH)

1,242

1117

(125)

1117

(125)

1117

(125)

1117

(125)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026)

Station 823

(segment 823 BH)

734

734

Station 834

(segment 834 BH)

683

670

(13)

220

(463)

220

(463)

590

(93)

Sta 827 (Alexandria): Annual ESD and Maintenance (6/8/2026 - 6/11/2026) Sta 827 to Sta 823: Pig Run - Maintenance (M) (6/8/2026)

Sta 834 to Sta 827: Pig Run - BH Ultimate MFLA Combo 6/16/26 (M) (6/16/2026) Sta 834 to Sta 827: Pig Run - Cleaning / Gauge 6/10/26 to 6/14/26 (M) (6/10/2026 - 6/14/2026)

Sta 834 to Sta 827: Pig Run - Cleaning / Gauge 6/15/26 (M) (6/15/2026) Sta 834: Scrubber Filter Changeout (6/24/2026 - 6/26/2026)

Sta 834: Station Outage (6/24/2026 - 6/25/2026) Sta 834: Unit 1A - Turbocharger (5/18/2026 - 6/1/2026)

Sta 834: Unit 7A - Turbocharger/Overhaul (6/1/2026 - 6/11/2026)

Station 534 South of Pool (segment 530 BH)

1,550

1528

(22)

1370

(180)

1528

(22)

1528

(22)

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

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 534: Annual ESD Test (6/8/2026)

Sta 534: Unit 6A - Piston Liner & Unloader Replacements (6/30/2025 - 7/10/2026)

MLV 548

(segment 542 BH)

1,647

1310

(337)

1435

(212)

1600

(47)

1635

(12)

MLV 539-2 to MLV 540-2: Anomaly Remediation (6/18/2026 - 6/20/2026) Sta 542: Unit 1A - Emergent Repair (1/1/2026 - 6/14/2026)

Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/14/2026) Sta 542: Unit 3A - Emergent Repair (3/26/2026 - 6/28/2026)

Sta 546: Unit 1A thru Unit 6A - Lube Oil Maintenance (6/1/2026 - 6/5/2026)

Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 6/19/2026)

Station 860

(segment 548 BH)

1,593

1580

(13)

1580

(13)

1580

(13)

1580

(13)

MLV 553-1A to MLV 554-1: Anomaly Remediation (6/1/2026 - 6/5/2026) Sta 555: Unit 5A - Foundation Regrout (1/20/2026 - 6/19/2026)

Sta. 555: Unit 4A - Engine Maintenance (6/22/2026 - 6/27/2026)

Sta. 555: Unit 6A - Engine Maintenance (6/15/2026 - 6/18/2026)

Station 860 North (Segment 860 BH)

1,874

1630

(244)

1540

(334)

1530

(344)

1846

(28)

Sta 563 Joelton: Scrubber Filter Changeout (6/15/2026 - 6/17/2026) Sta 563 Joelton: Unit 2A - Solar Turbine Exchange (6/8/2026 - 6/17/2026)

Sta 860: Annual ESD Test & Maintenance (6/1/2026 - 6/5/2026)

Sta 860: Scrubber/Filter/Separator Clean, Inspect & Filter Change (6/1/2026 - 6/5/2026)

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

TGP - Outage Impact Report June 2026 (updated 05/21/26)

-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

(6/1 - 6/7)

Week 2

(6/8 - 6/14)

Week 3

(6/15 - 6/21)

Week 4

(6/22 - 6/28)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 110

(segment 187 BH)

(south thru Kentucky)

2,685

2049

(636)

1749

(936)

2614

(71)

2385

(300)

MLV 104-1 to MLV 105-1: Anomaly Remediation (5/26/2026 - 6/26/2026)

MLV 109-3: Crossover to Ln 5 Valve Replacements (5/28/2026 - 6/11/2026) MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) Sta 106 Clay City: Annual ESD Test & Maintenance (6/2/2026 - 6/5/2026) Sta 110 Morehead: Annual ESD Test & Substation Inspection (6/8/2026 - 6/12/2026)

Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 9/30/2026) Sta 871 Campbellsville: Annual ESD Test (6/23/2026)

Sta. 106: C Building - Install Water Trech System (6/8/2026 - 6/12/2026)

Station 114

(segment 114 BH)

907

907

Station 204

(Segment 204 BH)

1,828

1270

(558)

1270

(558)

1545

(283)

1,828

Sta 200 Greenup: Annual ESD Test (6/16/2026 - 6/19/2026)

Sta. 200: Unit 1B - Crankcase Inspection (6/16/2026 - 6/19/2026)

Station 219 to

Station 224

(Segment 219 FH)

539

539

140

(399)

539

MLV 219-1D to MLV 224-1: Pig Run - Maintenance (6/16/2026)

Station 245

(segment 245 FH)

986

720

(266)

830

(156)

735

(251)

830

(156)

Sta 241: Annual ESD Test (6/16/2026)

Sta 241: Unit 1B - Oil System (6/2/2026 - 6/4/2026) Sta 241: Unit 2B - Oil System (6/9/2026 - 6/11/2026)

Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026) Sta 249: Unit 2B - 25k Overhaul (6/1/2026 - 6/26/2026)

Sta 249: Unit Valve Replacements (6/1/2026 - 6/5/2026)

MLV 256 West

(segment 249 FH)

1,203

1080

(123)

1,203

MLV 249-3A to MLV 251-3: Pig Run - Cal/IMU/MFL-A Combo (6/4/2026)

MLV 249-3A to MLV 251-3: Pig Run - Gauge/Cleaning tool (6/3/2026)

Station 261 Discharge East (segment 261

FH)

888

888

Station 307

(segment 307 BH)

1,153

1020

(133)

995

(158)

1060

(93)

1060

(93)

MLV 300-1A to MLV 301-1: Anomaly Remediation (5/27/2026 - 6/2/2026) MLV 304-1 to MLV 305-1: Anomaly Remediation (M) (6/3/2026 - 6/13/2026) MLV 306-2 to MLV 307-2: Anomaly Remediation (6/15/2026 - 6/27/2026) Sta 219: Unit 1B - Protective Device Checks & GHG (6/8/2026 - 6/12/2026)

Sta 307: Unit 3A - Turbocharger swap (6/8/2026 - 6/12/2026)

Station 315

(segment 315 BH)

1,823

1,823

Station 317

(segment 317 BH)

1,548

900

(648)

1,548

MLV 317-2 to MLV 315-2: Pig run - Cleaning (6/2/2026)

MLV 324

(segment 324 FH)

1,767

1,767

1450

(317)

Sta 325: Station Outage (6/24/2026 - 6/25/2026)

MLV 329

(segment 324 FH)

846

846

155

(691)

846

MLV 325-1 to MLV 329-1: Pig runs - Cal/IMU (M) (6/10/2026)

MLV 325-1 to MLV 329-1: Pig runs - Cleaning/Gauge (M) (6/9/2026) MLV 325-1 to MLV 329-1: Pig runs - MFL-C (M) (6/11/2026)

Cranston Lateral South

(segment 281

FH)

187

187

150

(37)

MLV 265E-101.1 to MLV 265E-104: PIG RUNS - Cal/IMU (M) (6/23/2026) ; MLV

265E-101.1 to MLV 265E-104: PIG RUNS - Gauge/Cleaning tool (M) (6/22/2026)

; MLV 265E-101.1 to MLV 265E-104: PIG RUNS - MFL-A (M) (6/24/2026)

Station 405 HC Line (segment 299

FH)

794

794

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.

TGP - Outage Impact Report July 2026 (updated 05/21/26)

-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

(6/29 - 7/5)

Week 2

(7/6 - 7/12)

Week 3

(7/13 - 7/19)

Week 4

(7/20 - 7/26)

Week 5

(7/27 - 8/2)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490

FH)

564

564

Station 1

(segment 101 BH)

399

399

Station 9

(segment 109 FH)

969

969

710

(259)

MLV 11-1A to MLV 11-1: Anomaly Remediation (7/27/2026 - 8/14/2026)

MLV 13-1 to MLV 12-1: Anomaly Remediation (7/27/2026 - 8/13/2026) MLV 9-1D to MLV 10-1: Anomaly Remediation (7/27/2026 - 8/14/2026)

Station 17

(segment 117 FH)

1,122

1000

(122)

1000

(122)

1000

(122)

1000

(122)

1100

(22)

MLV 19-1 TO MLV 20-1A: Pipe Replacement (M) (7/24/2026 - 8/20/2026) MLV 19-3 TO MLV 20-3A: Pipe Replacement (M) (6/20/2026 - 7/22/2026)

Station 25

(segment 125 FH)

1,078

1070

(8)

1070

(8)

925

(153)

775

(303)

925

(153)

MLV 25-2 to MLV 26-2: Pipe Replacement (6/25/2026 - 7/13/2026) MLV 26-2 Relocation: Highway 59 Widening (6/25/2026 - 7/13/2026) MLV 26-3 Relocation: Highway 59 Widening (M) (7/14/2026 - 7/31/2026)

Sta 25: Annual ESD Test (7/21/2026)

Station 47

(segment 143 FH)

1,343

1300

(43)

1095

(248)

960

(383)

1330

(13)

1330

(13)

MLV 40-1D to MLV 47-1S: Pig Run - Maintenance (7/14/2026) MLV 40-4D to MLV 47-4S: Pig Run - Maintenance (7/9/2026)

MLV 55-1 to MLV 56-1: PHMSA Immediate (5/11/2026 - 7/31/2026)

Sta. 47: Station Transformer Maintenance (7/13/2026 - 7/14/2026) Sta. 47: Unit 1D - 16K hour Overhaul (6/29/2026 - 7/10/2026)

Station 63

(segment 163 FH)

1,242

1117

(125)

901

(341)

901

(341)

1117

(125)

1117

(125)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 77-3 to MLV 77-3A: Pipe Replacements (7/7/2026 - 7/14/2026)

Station 823

(segment 823 BH)

734

734

Station 823 Muskrat Line (segment 509

BH)

231

130

(101)

231

Sta 823 to MLV 516: Pig Run - Maintenance (M) (6/30/2026)

MLV 516

Muskrat Line (segment 516 FH)

241

241

100

(141)

241

Sta 523 to MLV 516: Pig Run - Chemical Cleaning / Gauge 7/6/26 to 7/10/26 (M) (7/6/2026 - 7/10/2026)

Sta 523 to MLV 516: Pig Run - MFL-A 7/11/26 (M) (7/11/2026)

Station 534 South of Pool (segment 530 BH)

1,550

1528

(22)

1528

(22)

1528

(22)

1528

(22)

1528

(22)

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

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 534: Unit 6A - Piston Liner & Unloader Replacements (6/30/2025 -

7/10/2026)

MLV 548

(segment 542 BH)

1,647

1640

(7)

1640

(7)

1640

(7)

1640

(7)

1640

(7)

Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/14/2026)

Station 860

(segment 548 BH)

1,593

1,593

1585

(8)

1430

(163)

1,593

MLV 557-3 to MLV 559-3: Pig Runs - Cal / IMU & MFL-A 6/4/26 (7/16/2026)

MLV 557-3 to MLV 559-3: Pig Runs - Cleaning / Gauge 6/2/26 (7/14/2026) Sta 555: Scrubber/Filter/Separator Clean, Inspect & Filter Change (7/21/2026 -

7/22/2026)

Station 860 North (Segment 860

BH)

1,874

1846

(28)

1846

(28)

1846

(28)

1846

(28)

1846

(28)

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

Station 110

(segment 187 BH)

(south thru Kentucky)

2,685

2534

(151)

2358

(327)

2151

(534)

2358

(327)

2358

(327)

MLV 107-7 to 110-7: Valve Installation & Crossover Work (7/7/2026 - 7/27/2026)

MLV 109-4 to 110-4: Valve Installation & Crossover Work (7/28/2026 - 8/11/2026)

MLV 109-4 to MLV 110-4: Pipe Replacement (7/28/2026 - 8/11/2026) MLV 109-7 to MLV 110-7: Pipe Replacement (7/7/2026 - 7/27/2026)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 9/30/2026)

Sta 96 Campbellsville: Annual ESD Test (7/14/2026 - 7/15/2026)

Sta 96 Campbellsville: Annual Substation Inspection (7/13/2026 - 7/16/2026) Sta 96: Unit 2D Replace Compressor Valves (7/5/2026 - 7/9/2026)

Station 114

(segment 114 BH)

907

600

(307)

907

Sta 114: Unit 1D - Solar Turbine Inspection (6/29/2026 - 7/1/2026)

Station 204

(Segment 204 BH)

1,828

1,828

Station 230C (segment 296

FH)

743

743

370

(373)

743

Sta 230C: Annual ESD (M) (7/13/2026 - 7/14/2026)

Station 237

(segment 237 FH)

1,006

1,006

780

(226)

MLV 237-1 to MLV 245-1: Pig Run - Cleaning/Gauge (7/27/2026) MLV 237-1 to MLV 245-1: Pig Run - MFL-C (7/29/2026)

TGP - Outage Impact Report July 2026 (updated 05/21/26)

-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

(6/29 - 7/5)

Week 2

(7/6 - 7/12)

Week 3

(7/13 - 7/19)

Week 4

(7/20 - 7/26)

Week 5

(7/27 - 8/2)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 245

(segment 245 FH)

986

970

(16)

970

(16)

760

(226)

970

(16)

970

(16)

Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026)

Sta 245-1 to MLV 249-1: Pig Run - Cal/IMU (7/15/2026)

Sta 245-1 to MLV 249-1: Pig Run - Gauge/Cleaning tool (7/14/2026) Sta 245-1 to MLV 249-1: Pig Run - MFL-C (7/16/2026)

MLV 256 West

(segment 249 FH)

1,203

1,203

535

(668)

1,203

MLV 249-2 to MLV 254-2: Gauge/Cleaning tool (7/20/2026) MLV 249-2 to MLV 254-2: Hardspot/Geo (7/23/2026)

MLV 249-2 to MLV 254-2: MFL-A/IMU (7/21/2026)

Station 261 Discharge East (segment 261

FH)

888

888

Station 307

(segment 307 BH)

1,153

1,153

1115

(38)

1115

(38)

Sta 219: Unit 1B - Save Air System (7/20/2026 - 7/31/2026)

Sta 307: Unit 1A - Protective Device Checks (7/20/2026 - 7/24/2026) Sta 307: Unit 2A - Protective Device Checks (7/20/2026 - 7/24/2026) Sta 307: Unit 3A - Protective Device Checks (7/20/2026 - 7/24/2026) Sta 307: Unit 4A - Protective Device Checks (7/20/2026 - 7/24/2026)

Station 313 Discharge (segment 399

FH)

797

720

(77)

797

Sta 313: Unit 1C - Substation Inspection (6/30/2026 - 7/1/2026)

Station 315

(segment 315 BH)

1,823

1,823

Station 321

(segment 321 FH)

2,102

2,102

1715

(387)

2,102

Sta 321: Station Valves for ESD System (7/21/2026 - 7/23/2026)

MLV 324

(segment 324 FH)

1,767

1,767

1735

(32)

1,767

Sta 325: Units 4A - Water Wash & Borescope (7/6/2026 - 7/7/2026)

Station 405 HC Line (segment 299

FH)

794

794

680

(114)

794

Sta 405A: Annual ESD Test / Filter Scrubber (7/7/2026 - 7/9/2026)

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

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

TGP - Outage Impact Report August 2026 (updated 05/21/26)

-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

(8/3 - 8/9)

Week 2

(8/10 - 8/16)

Week 3

(8/17 - 8/23)

Week 4

(8/24 - 8/30)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490

FH)

564

564

Station 1

(segment 101 BH)

399

399

Station 9

(segment 109 FH)

969

710

(259)

710

(259)

969

MLV 11-1A to MLV 11-1: Anomaly Remediation (7/27/2026 - 8/14/2026) MLV 13-1 to MLV 12-1: Anomaly Remediation (7/27/2026 - 8/13/2026)

MLV 9-1D to MLV 10-1: Anomaly Remediation (7/27/2026 - 8/14/2026)

Station 17

(segment 117 FH)

1,122

1100

(22)

1100

(22)

1100

(22)

1,122

MLV 19-1 TO MLV 20-1A: Pipe Replacement (M) (7/24/2026 - 8/20/2026)

Station 25

(segment 125 FH)

1,078

1,078

Station 47

(segment 143 FH)

1,343

1,343

Station 63

(segment 163 FH)

1,242

1117

(125)

1117

(125)

1117

(125)

1117

(125)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 82-2C to MLV 83-2: Anomaly Remediation (8/3/2026 - 8/7/2026)

Station 823

(segment 823 BH)

734

734

Station 534 South of Pool (segment 530

BH)

1,550

1528

(22)

1528

(22)

1528

(22)

1528

(22)

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

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)

MLV 548

(segment 542 BH)

1,647

1640

(7)

1640

(7)

1,647

1235

(412)

Sta 542 Dekalb: Annual ESD Test (8/25/2026 - 8/27/2026) Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/14/2026)

Station 860

(segment 548 BH)

1,593

1,593

Station 860 North (Segment 860

BH)

1,874

1846

(28)

1846

(28)

1846

(28)

1846

(28)

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

Station 110

(segment 187 BH)

(south thru Kentucky)

2,685

2534

(151)

2534

(151)

2308

(377)

2050

(635)

MLV 109-4 to 110-4: Valve Installation & Crossover Work (7/28/2026 - 8/11/2026)

MLV 109-4 to MLV 110-4: Pipe Replacement (7/28/2026 - 8/11/2026) MLV 109-5 to MLV 109-5A: Pipe Replacement (8/18/2026 - 9/1/2026) MLV 109-5A to MLV 110-5: Pipe Replacement (8/18/2026 - 9/1/2026)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 96-3BR to MLV 96-3BL: Spike Test (8/10/2026 - 8/31/2026)

Sta 110: Install ESD Silence Covers (8/24/2026 - 8/28/2026) Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 9/30/2026)

Sta 875: Unit 1A- 8K Solar Turbine Inspection (8/17/2026 - 8/21/2026)

Sta 96: Unit 2D - Install Ball Grove Valve (8/3/2026 - 8/7/2026)

Station 114

(segment 114 BH)

907

907

393

(514)

393

(514)

393

(514)

MLV 117-3 to MLV 118-3: Special Permit Pipe Replacement (8/10/2026 - 8/31/2026)

MLV 119-2 to MLV 119-2A: Special Permit Pipe Replacement (8/10/2026 - 8/31/2026)

Sta 119A: Unit 1A - Solar Turbine Inspection (8/10/2026 - 8/12/2026)

Station 204

(Segment 204 BH)

1,828

1,828

1770

(58)

1770

(58)

MLV 202-2 to MLV 203-2: CLASS CHANGE REPLACEMENT TGP 202-2 (8/17/2026 - 9/26/2026)

Station 245

(segment 245 FH)

986

970

(16)

970

(16)

970

(16)

970

(16)

Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026)

Station 261 Discharge East (segment 261

FH)

888

720

(168)

888

Sta 261: Unit 2D - Engine Inspection & Borescope (8/3/2026 - 8/7/2026)

Station 307

(segment 307 BH)

1,153

965

(188)

1,153

765

(388)

1,153

Sta 219: Annual ESD Test & Scrubber Maintenance (8/17/2026 - 8/21/2026) Sta 307 (Pigeon): Annual ESD Test & Maintenance (8/3/2026 - 8/7/2026)

Station 313 Discharge (segment 399

FH)

797

797

515

(282)

797

Sta 313 Coudersport: Annual ESD Test & Maintenance (8/17/2026 - 8/20/2026)

TGP - Outage Impact Report August 2026 (updated 05/21/26)

-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

(8/3 - 8/9)

Week 2

(8/10 - 8/16)

Week 3

(8/17 - 8/23)

Week 4

(8/24 - 8/30)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 315

(segment 315 BH)

1,823

1,823

Station 317

(segment 317 BH)

1,548

1,548

1345

(203)

Sta 317: Annual ESD Test & Maintenance (8/24/2026 - 8/28/2026)

MLV 324

(segment 324 FH)

1,767

1,767

Station 405 HC Line (segment 299

FH)

794

794

Station 224

(segment 224 FH)

388

388

280

(108)

Station 224: Scrubber Inspections & Filter Change (8/25/2026 - 8/26/2026)

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

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

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: 05/21/2026 2:35:19PM	Notice End Date/Time: 05/22/2026 9:00:00am
Post Date/Time: 5/21/2026 2:35:19 PM	Notice ID: 401497
Reqrd Rsp: 1	Rsp Date: 05/21/2026
Notice Stat Desc: INITIATE	Prior Notice:
Subject: TGP Outage Impact Report

Notice Text:

TGP - Outage Impact Report Seven Day Forecast (updated 05/21/26)

-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 / Seg

Est Nominal

Operating Capacity (Thousand Dth)

Monday

(5/25)

Tuesday

(5/26)

Wednesday

(5/27)

Thursday

(5/28)

Friday

(5/29)

Saturday

(5/30)

Sunday

(5/31)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409

(Donna Line) (segment 490 FH)

564

564

Station 1

(segment 101 BH)

399

399

Station 9

(segment 109 FH)

969

969

Station 17

(segment 117 FH)

1,122

1104

(18)

1104

(18)

1104

(18)

1104

(18)

1104

(18)

1104

(18)

1104

(18)

MLV 19-2 TO MLV 20-2A: Pipe Replacement (M) (4/28/2026 - 6/18/2026)

Station 25

(segment 125 FH)

1,078

1,078

Station 47

(segment 143 FH)

1,343

1025

(318)

1025

(318)

1025

(318)

1025

(318)

1025

(318)

1330

(13)

1330

(13)

MLV 55-1 to MLV 56-1: PHMSA Immediate (5/11/2026 - 7/31/2026)

Sta. 47: Scrubber/Filter/Separator Cleaning/Inspection/Changeout (5/25/2026 - 5/29/2026)

Station 63

(segment 163 FH)

1,242

1117

(125)

1117

(125)

1117

(125)

1117

(125)

1117

(125)

1117

(125)

1117

(125)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026)

Station 823

(segment 823 BH)

734

734

Station 834

(segment 834 BH)

683

670

(13)

670

(13)

670

(13)

670

(13)

670

(13)

670

(13)

670

(13)

Sta 834: Unit 1A - Turbocharger (5/18/2026 - 6/1/2026) Sta 834: Unit 6A - Overhaul (3/3/2025 - 5/31/2026)

Station 527

(segment 527 BH)

2,395

2340

(55)

2340

(55)

2340

(55)

2340

(55)

2340

(55)

2340

(55)

2340

(55)

Sta 527: Unit 1C - High Vibration (2/4/2026 - 5/31/2026)

Station 534 South of Pool (segment 530 BH)

1,550

1528

(22)

1528

(22)

1528

(22)

1528

(22)

1528

(22)

1528

(22)

1528

(22)

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

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 534: Unit 6A - Piston Liner & Unloader Replacements (6/30/2025 -

7/10/2026)

MLV 548

(segment 542 BH)

1,647

1435

(212)

1435

(212)

1435

(212)

1435

(212)

1435

(212)

1435

(212)

1435

(212)

Sta 542: Unit 1A - Emergent Repair (1/1/2026 - 6/14/2026) Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/14/2026) Sta 542: Unit 3A - Emergent Repair (3/26/2026 - 6/28/2026)

Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 6/19/2026)

Station 860

(segment 548 BH)

1,593

1580

(13)

1580

(13)

1580

(13)

1580

(13)

1580

(13)

1580

(13)

1580

(13)

MLV 552-2 to MLV 553-2: Anomaly Remediation (5/26/2026 - 5/30/2026) Sta 550: Unit 3A - Overhaul (4/6/2026 - 5/28/2026)

Sta 555: Unit 5A - Foundation Regrout (1/20/2026 - 6/19/2026)

Station 860 North (Segment 860

BH)

1,874

1846

(28)

1846

(28)

1846

(28)

1846

(28)

1846

(28)

1846

(28)

1846

(28)

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

Station 110

(segment 187 BH)

(south thru Kentucky)

2,685

1900

(785)

1742

(943)

1900

(785)

1900

(785)

1900

(785)

1900

(785)

2392

(293)

MLV 104-1 to MLV 105-1: Anomaly Remediation (5/26/2026 - 6/26/2026) MLV 106-3 to MLV 108-3: Valve Replacement (5/23/2026 - 5/27/2026)

Sta 871: Unit 3A - Main Bearing (8/22/2025 - 5/31/2026)

Station 114

(segment 114 BH)

907

907

Station 204

(Segment 204 BH)

1,828

1,828

1270

(558)

1270

(558)

1270

(558)

1270

(558)

1270

(558)

MLV 207-4 to MLV 209-4: Replace MLV 208-4 (M) (5/27/2026 - 6/10/2026)

Station 245

(segment 245 FH)

986

970

(16)

970

(16)

970

(16)

970

(16)

970

(16)

970

(16)

970

(16)

Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026)

Station 254

(segment 256 FH)

1,203

1,203

630

(573)

630

(573)

1,203

MLV 254-2 to MLV 261-2: Pig Run - Cal/IMU/MFL-A Combo (5/28/2026)

MLV 254-2 to MLV 261-2: Pig Run - Gauge/Cleaning tool (5/27/2026)

Station 261 Discharge East (segment 261

FH)

888

888

Station 307

(segment 307 BH)

1,153

1,153

965

(188)

895

(258)

895

(258)

895

(258)

1090

(63)

1090

(63)

MLV 300-1A to MLV 301-1: Anomaly Remediation (5/27/2026 - 6/2/2026) Sta 303A: Annual ESD Test & Maintenance (5/26/2026 - 5/29/2026)

Station 315

(segment 315 BH)

1,823

1,823

1400

(423)

1,823

Sta 315 Wellsboro: Annual ESD Test (5/26/2026)

MLV 324

(segment 324 FH)

1,767

1,767

Station 405 HC Line (segment 299

FH)

794

794

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.

TGP - Outage Impact Report June 2026 (updated 05/21/26)

-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

(6/1 - 6/7)

Week 2

(6/8 - 6/14)

Week 3

(6/15 - 6/21)

Week 4

(6/22 - 6/28)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409A (Alamo) (segment 492 FH)

274

274

125

(149)

MLV 409A-101.1 to MLV 409A-103: Pig Runs - MFL-C (M) (6/25/2026)

Station 409 (Donna Line) (segment 490

FH)

564

564

Station 1

(segment 101 BH)

399

399

Station 9

(segment 109 FH)

969

969

Station 17

(segment 117 FH)

1,122

1104

(18)

1104

(18)

1000

(122)

1000

(122)

MLV 17-3DL to MLV 18-3A: Anomaly Remediation (6/15/2026 - 6/22/2026) MLV 19-2 TO MLV 20-2A: Pipe Replacement (M) (4/28/2026 - 6/18/2026)

MLV 19-3 TO MLV 20-3A: Pipe Replacement (M) (6/20/2026 - 7/22/2026)

Station 25

(segment 125 FH)

1,078

1055

(23)

1055

(23)

1055

(23)

1055

(23)

MLV 25-2 to MLV 26-2: Pipe Replacement (6/25/2026 - 7/13/2026) MLV 26-1 Relocation: Highway 59 Widening (6/6/2026 - 6/23/2026)

MLV 26-2 Relocation: Highway 59 Widening (6/25/2026 - 7/13/2026)

Station 47

(segment 143 FH)

1,343

1330

(13)

1300

(43)

1330

(13)

1330

(13)

MLV 40-3D to MLV 47-3S: Pig Run - Maintenance Cleaning (6/9/2026) MLV 55-1 to MLV 56-1: PHMSA Immediate (5/11/2026 - 7/31/2026)

Station 63

(segment 163 FH)

1,242

1117

(125)

1117

(125)

1117

(125)

1117

(125)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026)

Station 823

(segment 823 BH)

734

734

Station 834

(segment 834 BH)

683

670

(13)

220

(463)

220

(463)

590

(93)

Sta 827 (Alexandria): Annual ESD and Maintenance (6/8/2026 - 6/11/2026) Sta 827 to Sta 823: Pig Run - Maintenance (M) (6/8/2026)

Sta 834 to Sta 827: Pig Run - BH Ultimate MFLA Combo 6/16/26 (M) (6/16/2026) Sta 834 to Sta 827: Pig Run - Cleaning / Gauge 6/10/26 to 6/14/26 (M) (6/10/2026 - 6/14/2026)

Sta 834 to Sta 827: Pig Run - Cleaning / Gauge 6/15/26 (M) (6/15/2026) Sta 834: Scrubber Filter Changeout (6/24/2026 - 6/26/2026)

Sta 834: Station Outage (6/24/2026 - 6/25/2026) Sta 834: Unit 1A - Turbocharger (5/18/2026 - 6/1/2026)

Sta 834: Unit 7A - Turbocharger/Overhaul (6/1/2026 - 6/11/2026)

Station 534 South of Pool (segment 530 BH)

1,550

1528

(22)

1370

(180)

1528

(22)

1528

(22)

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

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 534: Annual ESD Test (6/8/2026)

Sta 534: Unit 6A - Piston Liner & Unloader Replacements (6/30/2025 - 7/10/2026)

MLV 548

(segment 542 BH)

1,647

1310

(337)

1435

(212)

1600

(47)

1635

(12)

MLV 539-2 to MLV 540-2: Anomaly Remediation (6/18/2026 - 6/20/2026) Sta 542: Unit 1A - Emergent Repair (1/1/2026 - 6/14/2026)

Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/14/2026) Sta 542: Unit 3A - Emergent Repair (3/26/2026 - 6/28/2026)

Sta 546: Unit 1A thru Unit 6A - Lube Oil Maintenance (6/1/2026 - 6/5/2026)

Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 6/19/2026)

Station 860

(segment 548 BH)

1,593

1580

(13)

1580

(13)

1580

(13)

1580

(13)

MLV 553-1A to MLV 554-1: Anomaly Remediation (6/1/2026 - 6/5/2026) Sta 555: Unit 5A - Foundation Regrout (1/20/2026 - 6/19/2026)

Sta. 555: Unit 4A - Engine Maintenance (6/22/2026 - 6/27/2026)

Sta. 555: Unit 6A - Engine Maintenance (6/15/2026 - 6/18/2026)

Station 860 North (Segment 860 BH)

1,874

1630

(244)

1540

(334)

1530

(344)

1846

(28)

Sta 563 Joelton: Scrubber Filter Changeout (6/15/2026 - 6/17/2026) Sta 563 Joelton: Unit 2A - Solar Turbine Exchange (6/8/2026 - 6/17/2026)

Sta 860: Annual ESD Test & Maintenance (6/1/2026 - 6/5/2026)

Sta 860: Scrubber/Filter/Separator Clean, Inspect & Filter Change (6/1/2026 - 6/5/2026)

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

TGP - Outage Impact Report June 2026 (updated 05/21/26)

-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

(6/1 - 6/7)

Week 2

(6/8 - 6/14)

Week 3

(6/15 - 6/21)

Week 4

(6/22 - 6/28)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 110

(segment 187 BH)

(south thru Kentucky)

2,685

2049

(636)

1749

(936)

2614

(71)

2385

(300)

MLV 104-1 to MLV 105-1: Anomaly Remediation (5/26/2026 - 6/26/2026)

Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 9/30/2026) Sta 871 Campbellsville: Annual ESD Test (6/23/2026)

Sta. 106: C Building - Install Water Trech System (6/8/2026 - 6/12/2026)

Station 114

(segment 114 BH)

907

907

Station 204

(Segment 204 BH)

1,828

1270

(558)

1270

(558)

1545

(283)

1,828

Sta 200 Greenup: Annual ESD Test (6/16/2026 - 6/19/2026)

Sta. 200: Unit 1B - Crankcase Inspection (6/16/2026 - 6/19/2026)

Station 219 to

Station 224

(Segment 219 FH)

539

539

140

(399)

539

MLV 219-1D to MLV 224-1: Pig Run - Maintenance (6/16/2026)

Station 245

(segment 245 FH)

986

720

(266)

830

(156)

735

(251)

830

(156)

Sta 241: Annual ESD Test (6/16/2026)

Sta 241: Unit 1B - Oil System (6/2/2026 - 6/4/2026) Sta 241: Unit 2B - Oil System (6/9/2026 - 6/11/2026)

Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026) Sta 249: Unit 2B - 25k Overhaul (6/1/2026 - 6/26/2026)

Sta 249: Unit Valve Replacements (6/1/2026 - 6/5/2026)

MLV 256 West

(segment 249 FH)

1,203

1080

(123)

1,203

MLV 249-3A to MLV 251-3: Pig Run - Cal/IMU/MFL-A Combo (6/4/2026)

MLV 249-3A to MLV 251-3: Pig Run - Gauge/Cleaning tool (6/3/2026)

Station 261 Discharge East (segment 261

FH)

888

888

Station 307

(segment 307 BH)

1,153

1020

(133)

995

(158)

1060

(93)

1060

(93)

Sta 307: Unit 3A - Turbocharger swap (6/8/2026 - 6/12/2026)

Station 315

(segment 315 BH)

1,823

1,823

Station 317

(segment 317 BH)

1,548

900

(648)

1,548

MLV 317-2 to MLV 315-2: Pig run - Cleaning (6/2/2026)

MLV 324

(segment 324 FH)

1,767

1,767

1450

(317)

Sta 325: Station Outage (6/24/2026 - 6/25/2026)

MLV 329

(segment 324 FH)

846

846

155

(691)

846

MLV 325-1 to MLV 329-1: Pig runs - Cal/IMU (M) (6/10/2026)

MLV 325-1 to MLV 329-1: Pig runs - Cleaning/Gauge (M) (6/9/2026) MLV 325-1 to MLV 329-1: Pig runs - MFL-C (M) (6/11/2026)

Cranston Lateral South

(segment 281

FH)

187

187

150

(37)

MLV 265E-101.1 to MLV 265E-104: PIG RUNS - Cal/IMU (M) (6/23/2026) ; MLV

265E-101.1 to MLV 265E-104: PIG RUNS - Gauge/Cleaning tool (M) (6/22/2026)

; MLV 265E-101.1 to MLV 265E-104: PIG RUNS - MFL-A (M) (6/24/2026)

Station 405 HC Line (segment 299

FH)

794

794

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.

TGP - Outage Impact Report July 2026 (updated 05/21/26)

-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

(6/29 - 7/5)

Week 2

(7/6 - 7/12)

Week 3

(7/13 - 7/19)

Week 4

(7/20 - 7/26)

Week 5

(7/27 - 8/2)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490

FH)

564

564

Station 1

(segment 101 BH)

399

399

Station 9

(segment 109 FH)

969

969

710

(259)

MLV 11-1A to MLV 11-1: Anomaly Remediation (7/27/2026 - 8/14/2026)

MLV 13-1 to MLV 12-1: Anomaly Remediation (7/27/2026 - 8/13/2026) MLV 9-1D to MLV 10-1: Anomaly Remediation (7/27/2026 - 8/14/2026)

Station 17

(segment 117 FH)

1,122

1000

(122)

1000

(122)

1000

(122)

1000

(122)

1100

(22)

MLV 19-1 TO MLV 20-1A: Pipe Replacement (M) (7/24/2026 - 8/20/2026) MLV 19-3 TO MLV 20-3A: Pipe Replacement (M) (6/20/2026 - 7/22/2026)

Station 25

(segment 125 FH)

1,078

1070

(8)

1070

(8)

925

(153)

775

(303)

925

(153)

MLV 25-2 to MLV 26-2: Pipe Replacement (6/25/2026 - 7/13/2026) MLV 26-2 Relocation: Highway 59 Widening (6/25/2026 - 7/13/2026) MLV 26-3 Relocation: Highway 59 Widening (M) (7/14/2026 - 7/31/2026)

Sta 25: Annual ESD Test (7/21/2026)

Station 47

(segment 143 FH)

1,343

1300

(43)

1095

(248)

960

(383)

1330

(13)

1330

(13)

MLV 40-1D to MLV 47-1S: Pig Run - Maintenance (7/14/2026) MLV 40-4D to MLV 47-4S: Pig Run - Maintenance (7/9/2026)

MLV 55-1 to MLV 56-1: PHMSA Immediate (5/11/2026 - 7/31/2026)

Sta. 47: Station Transformer Maintenance (7/13/2026 - 7/14/2026) Sta. 47: Unit 1D - 16K hour Overhaul (6/29/2026 - 7/10/2026)

Station 63

(segment 163 FH)

1,242

1117

(125)

901

(341)

901

(341)

1117

(125)

1117

(125)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 77-3 to MLV 77-3A: Pipe Replacements (7/7/2026 - 7/14/2026)

Station 823

(segment 823 BH)

734

734

Station 823 Muskrat Line (segment 509

BH)

231

130

(101)

231

Sta 823 to MLV 516: Pig Run - Maintenance (M) (6/30/2026)

MLV 516

Muskrat Line (segment 516 FH)

241

241

100

(141)

241

Sta 523 to MLV 516: Pig Run - Chemical Cleaning / Gauge 7/6/26 to 7/10/26 (M) (7/6/2026 - 7/10/2026)

Sta 523 to MLV 516: Pig Run - MFL-A 7/11/26 (M) (7/11/2026)

Station 534 South of Pool (segment 530 BH)

1,550

1528

(22)

1528

(22)

1528

(22)

1528

(22)

1528

(22)

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

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 534: Unit 6A - Piston Liner & Unloader Replacements (6/30/2025 -

7/10/2026)

MLV 548

(segment 542 BH)

1,647

1640

(7)

1640

(7)

1640

(7)

1640

(7)

1640

(7)

Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/14/2026)

Station 860

(segment 548 BH)

1,593

1,593

1585

(8)

1430

(163)

1,593

MLV 557-3 to MLV 559-3: Pig Runs - Cal / IMU & MFL-A 6/4/26 (7/16/2026)

MLV 557-3 to MLV 559-3: Pig Runs - Cleaning / Gauge 6/2/26 (7/14/2026) Sta 555: Scrubber/Filter/Separator Clean, Inspect & Filter Change (7/21/2026 -

7/22/2026)

Station 860 North (Segment 860

BH)

1,874

1846

(28)

1846

(28)

1846

(28)

1846

(28)

1846

(28)

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

Station 110

(segment 187 BH)

(south thru Kentucky)

2,685

2534

(151)

2358

(327)

2151

(534)

2358

(327)

2358

(327)

MLV 107-7 to 110-7: Valve Installation & Crossover Work (7/7/2026 - 7/27/2026)

MLV 109-4 to 110-4: Valve Installation & Crossover Work (7/28/2026 - 8/11/2026)

MLV 109-4 to MLV 110-4: Pipe Replacement (7/28/2026 - 8/11/2026) MLV 109-7 to MLV 110-7: Pipe Replacement (7/7/2026 - 7/27/2026)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 9/30/2026)

Sta 96 Campbellsville: Annual ESD Test (7/14/2026 - 7/15/2026)

Sta 96 Campbellsville: Annual Substation Inspection (7/13/2026 - 7/16/2026) Sta 96: Unit 2D Replace Compressor Valves (7/5/2026 - 7/9/2026)

Station 114

(segment 114 BH)

907

600

(307)

907

Sta 114: Unit 1D - Solar Turbine Inspection (6/29/2026 - 7/1/2026)

Station 204

(Segment 204 BH)

1,828

1,828

Station 230C (segment 296

FH)

743

743

370

(373)

743

Sta 230C: Annual ESD (M) (7/13/2026 - 7/14/2026)

Station 237

(segment 237 FH)

1,006

1,006

780

(226)

MLV 237-1 to MLV 245-1: Pig Run - Cleaning/Gauge (7/27/2026) MLV 237-1 to MLV 245-1: Pig Run - MFL-C (7/29/2026)

TGP - Outage Impact Report July 2026 (updated 05/21/26)

-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

(6/29 - 7/5)

Week 2

(7/6 - 7/12)

Week 3

(7/13 - 7/19)

Week 4

(7/20 - 7/26)

Week 5

(7/27 - 8/2)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 245

(segment 245 FH)

986

970

(16)

970

(16)

760

(226)

970

(16)

970

(16)

Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026)

Sta 245-1 to MLV 249-1: Pig Run - Cal/IMU (7/15/2026)

Sta 245-1 to MLV 249-1: Pig Run - Gauge/Cleaning tool (7/14/2026) Sta 245-1 to MLV 249-1: Pig Run - MFL-C (7/16/2026)

MLV 256 West

(segment 249 FH)

1,203

1,203

535

(668)

1,203

MLV 249-2 to MLV 254-2: Gauge/Cleaning tool (7/20/2026) MLV 249-2 to MLV 254-2: Hardspot/Geo (7/23/2026)

MLV 249-2 to MLV 254-2: MFL-A/IMU (7/21/2026)

Station 261 Discharge East (segment 261

FH)

888

888

Station 307

(segment 307 BH)

1,153

1,153

1115

(38)

1115

(38)

Sta 219: Unit 1B - Save Air System (7/20/2026 - 7/31/2026)

Station 313 Discharge (segment 399

FH)

797

720

(77)

797

Sta 313: Unit 1C - Substation Inspection (6/30/2026 - 7/1/2026)

Station 315

(segment 315 BH)

1,823

1,823

Station 321

(segment 321 FH)

2,102

2,102

1715

(387)

2,102

Sta 321: Station Valves for ESD System (7/21/2026 - 7/23/2026)

MLV 324

(segment 324 FH)

1,767

1,767

1735

(32)

1,767

Sta 325: Units 4A - Water Wash & Borescope (7/6/2026 - 7/7/2026)

Station 405 HC Line (segment 299

FH)

794

794

680

(114)

794

Sta 405A: Annual ESD Test / Filter Scrubber (7/7/2026 - 7/9/2026)

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

TGP - Outage Impact Report August 2026 (updated 05/21/26)

-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

(8/3 - 8/9)

Week 2

(8/10 - 8/16)

Week 3

(8/17 - 8/23)

Week 4

(8/24 - 8/30)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490

FH)

564

564

Station 1

(segment 101 BH)

399

399

Station 9

(segment 109 FH)

969

710

(259)

710

(259)

969

MLV 11-1A to MLV 11-1: Anomaly Remediation (7/27/2026 - 8/14/2026) MLV 13-1 to MLV 12-1: Anomaly Remediation (7/27/2026 - 8/13/2026)

MLV 9-1D to MLV 10-1: Anomaly Remediation (7/27/2026 - 8/14/2026)

Station 17

(segment 117 FH)

1,122

1100

(22)

1100

(22)

1100

(22)

1,122

MLV 19-1 TO MLV 20-1A: Pipe Replacement (M) (7/24/2026 - 8/20/2026)

Station 25

(segment 125 FH)

1,078

1,078

Station 47

(segment 143 FH)

1,343

1,343

Station 63

(segment 163 FH)

1,242

1117

(125)

1117

(125)

1117

(125)

1117

(125)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 82-2C to MLV 83-2: Anomaly Remediation (8/3/2026 - 8/7/2026)

Station 823

(segment 823 BH)

734

734

Station 534 South of Pool (segment 530

BH)

1,550

1528

(22)

1528

(22)

1528

(22)

1528

(22)

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

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)

MLV 548

(segment 542 BH)

1,647

1640

(7)

1640

(7)

1,647

1235

(412)

Sta 542 Dekalb: Annual ESD Test (8/25/2026 - 8/27/2026) Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/14/2026)

Station 860

(segment 548 BH)

1,593

1,593

Station 860 North (Segment 860

BH)

1,874

1846

(28)

1846

(28)

1846

(28)

1846

(28)

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

Station 110

(segment 187 BH)

(south thru Kentucky)

2,685

2534

(151)

2534

(151)

2308

(377)

2050

(635)

MLV 109-4 to 110-4: Valve Installation & Crossover Work (7/28/2026 - 8/11/2026)

MLV 109-4 to MLV 110-4: Pipe Replacement (7/28/2026 - 8/11/2026) MLV 109-5 to MLV 109-5A: Pipe Replacement (8/18/2026 - 9/1/2026) MLV 109-5A to MLV 110-5: Pipe Replacement (8/18/2026 - 9/1/2026)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 96-3BR to MLV 96-3BL: Spike Test (8/10/2026 - 8/31/2026)

Sta 110: Install ESD Silence Covers (8/24/2026 - 8/28/2026) Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 9/30/2026)

Sta 875: Unit 1A- 8K Solar Turbine Inspection (8/17/2026 - 8/21/2026)

Sta 96: Unit 2D - Install Ball Grove Valve (8/3/2026 - 8/7/2026)

Station 114

(segment 114 BH)

907

907

393

(514)

393

(514)

393

(514)

MLV 117-3 to MLV 118-3: Special Permit Pipe Replacement (8/10/2026 - 8/31/2026)

MLV 119-2 to MLV 119-2A: Special Permit Pipe Replacement (8/10/2026 - 8/31/2026)

Sta 119A: Unit 1A - Solar Turbine Inspection (8/10/2026 - 8/12/2026)

Station 204

(Segment 204 BH)

1,828

1,828

1770

(58)

1770

(58)

MLV 202-2 to MLV 203-2: CLASS CHANGE REPLACEMENT TGP 202-2 (8/17/2026 - 9/26/2026)

Station 245

(segment 245 FH)

986

970

(16)

970

(16)

970

(16)

970

(16)

Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026)

Station 261 Discharge East (segment 261

FH)

888

720

(168)

888

Sta 261: Unit 2D - Engine Inspection & Borescope (8/3/2026 - 8/7/2026)

Station 307

(segment 307 BH)

1,153

965

(188)

1,153

765

(388)

1,153

Sta 219: Annual ESD Test & Scrubber Maintenance (8/17/2026 - 8/21/2026) Sta 307 (Pigeon): Annual ESD Test & Maintenance (8/3/2026 - 8/7/2026)

Station 313 Discharge (segment 399

FH)

797

797

515

(282)

797

Sta 313 Coudersport: Annual ESD Test & Maintenance (8/17/2026 - 8/20/2026)

TGP - Outage Impact Report August 2026 (updated 05/21/26)

-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

(8/3 - 8/9)

Week 2

(8/10 - 8/16)

Week 3

(8/17 - 8/23)

Week 4

(8/24 - 8/30)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 315

(segment 315 BH)

1,823

1,823

Station 317

(segment 317 BH)

1,548

1,548

1345

(203)

Sta 317: Annual ESD Test & Maintenance (8/24/2026 - 8/28/2026)

MLV 324

(segment 324 FH)

1,767

1,767

Station 405 HC Line (segment 299

FH)

794

794

Station 224

(segment 224 FH)

388

388

280

(108)

Station 224: Scrubber Inspections & Filter Change (8/25/2026 - 8/26/2026)

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

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

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

TGP Outage Impact Report

Error

Error