Tennessee Gas Pipeline Notice 402178

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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: 06/18/2026 3:10:53PM Notice End Date/Time: 06/19/2026 9:00:00am Post Date/Time: 6/18/2026 3:10:53 PM Notice ID: 402178 Reqrd Rsp: 1 Rsp Date: 6/18/2026 12:00:00 AM 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 06/18/26)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station / Seg

Est Nominal

Operating Capacity (Thousand Dth)

Monday

(6/22)

Tuesday

(6/23)

Wednesday

(6/24)

Thursday

(6/25)

Friday

(6/26)

Saturday

(6/27)

Sunday

(6/28)

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 BH)

1,027

945

(82)

945

(82)

945

(82)

945

(82)

945

(82)

945

(82)

945

(82)

MLV 4-1 to MLV 5-1: Emergent Repair (6/9/2026 - 7/1/2026)

Station 17

(segment 117 FH)

1,122

1104

(18)

1104

(18)

1104

(18)

1104

(18)

1104

(18)

1104

(18)

1,122

MLV 19-2 TO MLV 20-2A: Pipe Replacement (M) (4/28/2026 - 6/27/2026)

Station 25

(segment 125 FH)

1,078

1055

(23)

1055

(23)

1055

(23)

1055

(23)

1055

(23)

1055

(23)

1055

(23)

MLV 26-1 Relocation: Highway 59 Widening (6/22/2026 - 7/10/2026)

Station 40 KN South (segment 501

FH)

267

267

200

(67)

267

Sta 500C1: Install 500 Line Indicator (6/25/2026)

Station 47

(segment 143 FH)

1,343

1330

(13)

1330

(13)

1330

(13)

1330

(13)

1330

(13)

1330

(13)

1330

(13)

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)

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

683

590

(93)

590

(93)

590

(93)

683

Sta 834: Scrubber Filter Changeout (6/24/2026 - 6/26/2026) Sta 834: Station Outage (6/24/2026 - 6/26/2026)

Station 534 South of Pool (segment 530 BH)

1,550

985

(565)

985

(565)

985

(565)

985

(565)

985

(565)

1528

(22)

1528

(22)

MLV 533-2 to MLV 534-2: Pipe Replacement (M) (6/4/2026 - 6/26/2026) 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

1600

(47)

1600

(47)

1600

(47)

1600

(47)

1600

(47)

1600

(47)

1600

(47)

Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/31/2026)

Sta 542: Unit 3A - Emergent Repair (3/26/2026 - 7/31/2026) Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 7/31/2026)

Station 860

(segment 548 BH)

1,593

1580

(13)

1580

(13)

1580

(13)

1580

(13)

1580

(13)

1580

(13)

1,593

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

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

2415

(270)

2415

(270)

2415

(270)

2415

(270)

2415

(270)

2534

(151)

2534

(151)

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 871 Campbellsville: Annual ESD Test (6/25/2026)

Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 6/26/2026)

Station 114

(segment 114 BH)

907

907

Station 204

(Segment 204 BH)

1,828

1790

(38)

1790

(38)

1790

(38)

1790

(38)

1790

(38)

1790

(38)

1790

(38)

MLV 206-2 to MLV 207-2: Anomaly Remediation (6/22/2026 - 7/2/2026)

Station 219 to

Station 224

(Segment 219 FH)

539

539

140

(399)

539

MLV 219-1D to MLV 224-1: Pig Run - Maintenance (6/23/2026)

Station 245

(segment 245 FH)

986

830

(156)

830

(156)

830

(156)

830

(156)

830

(156)

970

(16)

970

(16)

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)

Station 261 Discharge East (segment 261

FH)

888

888

Station 307

(segment 307 BH)

1,153

1,153

Station 315

(segment 315 BH)

1,823

1,823

MLV 324

(segment 324 FH)

1,767

1,767

Cranston Lateral South

(segment 281

FH)

187

150

(37)

150

(37)

150

(37)

187

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.

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

July 2026 (updated 06/18/26)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(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 BH)

1,027

945

(82)

1,027

640

(387)

640

(387)

1015

(12)

MLV 4-1 to MLV 5-1: Emergent Repair (6/9/2026 - 7/1/2026) MLV 5-2 to MLV 1-2D: Pig Run - Cleaning Gauge (M) (7/13/2026) MLV 5-2 to MLV 1-2D: Pig Run - Cleaning Gauge (M) (7/14/2026) MLV 5-2 to MLV 1-2D: Pig Run - Cleaning Gauge (M) (7/15/2026) MLV 5-2 to MLV 1-2D: Pig Run - Cleaning Gauge (M) (7/16/2026) MLV 5-2 to MLV 1-2D: Pig Run - Cleaning Gauge (M) (7/17/2026) MLV 5-2 to MLV 1-2D: Pig Run - TDW MDS (M) (7/21/2026)

MLV 9-1D to MLV 10-1: Anomaly Remediation (7/27/2026 - 8/2/2026)

Station 17

(segment 117 FH)

1,122

1000

(122)

1000

(122)

1000

(122)

1000

(122)

1000

(122)

MLV 17-3DL to MLV 18-3A: Anomaly Remediation (7/1/2026 - 7/7/2026) MLV 19-3 TO MLV 20-3A: Pipe Replacement (M) (7/1/2026 - 7/31/2026)

Station 25

(segment 125 FH)

1,078

1055

(23)

1055

(23)

1070

(8)

955

(123)

1070

(8)

MLV 25-2 to MLV 26-2: Pipe Replacement (7/11/2026 - 7/29/2026) MLV 26-1 Relocation: Highway 59 Widening (6/22/2026 - 7/10/2026) MLV 26-2 Relocation: Highway 59 Widening (7/11/2026 - 7/29/2026)

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

Station 47

(segment 143 FH)

1,343

1330

(13)

1330

(13)

1020

(323)

1330

(13)

1330

(13)

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)

Station 63

(segment 163 FH)

1,242

1117

(125)

1117

(125)

1117

(125)

901

(341)

901

(341)

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 (7/20/2026 - 7/27/2026)

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

1600

(47)

1600

(47)

1600

(47)

1600

(47)

1600

(47)

MLV 539-2 to MLV 540-2: Anomaly Remediation (7/9/2026 - 7/13/2026) Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/31/2026)

Sta 542: Unit 3A - Emergent Repair (3/26/2026 - 7/31/2026)

Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 7/31/2026)

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)

2280

(405)

2098

(587)

2150

(535)

2150

(535)

MLV 104-1 to MLV 105-1: Anomaly Remediation (7/13/2026 - 8/15/2026) 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) MLV 87-3 to MLV 96-3: Pig Run - EMAT (7/21/2026)

MLV 87-3 to MLV 96-3: Pig Run - MDS (7/7/2026)

MLV 96-3BR to MLV 96-3BL: Spike Test (7/27/2026 - 8/31/2026)

Sta 106: C Building - Install Water Trech System (7/13/2026 - 7/17/2026) 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

1790

(38)

1,828

MLV 206-2 to MLV 207-2: Anomaly Remediation (6/22/2026 - 7/2/2026)

TGP - Outage Impact Report July 2026 (updated 06/18/26)

-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 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)

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

560

(328)

888

Sta 264 Charlton: Controls Upgrade (6/29/2026 - 6/30/2026)

Station 307

(segment 307 BH)

1,153

1,153

775

(378)

775

(378)

930

(223)

1115

(38)

MLV 302-2 to MLV 303-2: Anomaly Remediation (7/7/2026 - 7/18/2026) Sta 219: Unit 1B - Protective Device Checks & GHG (7/20/2026 - 7/24/2026)

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

1450

(317)

Sta 325: Station Outage (7/28/2026 - 7/30/2026)

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.

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

August 2026 (updated 06/18/26)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(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 BH)

1,027

985

(42)

945

(82)

945

(82)

1,027

MLV 11-1A to MLV 11-1: Anomaly Remediation (8/3/2026 - 8/9/2026) MLV 13-1 to MLV 12-1: Anomaly Remediation (8/10/2026 - 8/19/2026)

Station 17

(segment 117 FH)

1,122

1100

(22)

1100

(22)

1100

(22)

1100

(22)

MLV 19-1 TO MLV 20-1A: Pipe Replacement (M) (8/4/2026 - 9/12/2026)

Station 25

(segment 125 FH)

1,078

925

(153)

925

(153)

925

(153)

1,078

MLV 26-3 Relocation: Highway 59 Widening (M) (8/3/2026 - 8/20/2026)

Station 47

(segment 143 FH)

1,343

1255

(88)

1105

(238)

1,343

MLV 40-1D to MLV 47-1S: Pig Run - Maintenance (8/4/2026)

MLV 40-3D to MLV 47-3S: Pig Run - Maintenance Cleaning (8/11/2026) MLV 40-4D to MLV 47-4S: Pig Run - Maintenance (8/13/2026)

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) 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)

1640

(7)

1235

(412)

Sta 542 Dekalb: Annual ESD Test (8/25/2026 - 8/27/2026) Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/31/2026)

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

2457

(228)

2470

(215)

2308

(377)

2050

(635)

MLV 104-1 to MLV 105-1: Anomaly Remediation (7/13/2026 - 8/15/2026) 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 109-5 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 (7/27/2026 - 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

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

888

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

500

(297)

797

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

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

August 2026 (updated 06/18/26)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(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.

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

September 2026 (updated 06/18/26)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(8/31 - 9/6)

Week 2

(9/7 - 9/13)

Week 3

(9/14 - 9/20)

Week 4

(9/21 - 9/27)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409A (Alamo) (segment 492 FH)

274

274

125

(149)

274

MLV 409A-101.1 to MLV 409A-103: Pig Runs - Cleaning / Gauge (M) (9/7/2026) MLV 409A-101.1 to MLV 409A-103: Pig Runs - Cleaning / Gauge (M) (9/8/2026) MLV 409A-101.1 to MLV 409A-103: Pig Runs - Cleaning / Gauge (M) (9/9/2026) MLV 409A-101.1 to MLV 409A-103: Pig Runs - EMAT (M) (9/11/2026)

MLV 409A-101.1 to MLV 409A-103: Pig Runs - MFL-C (M) (9/10/2026)

Station 1

(segment 101 BH)

399

300

(99)

300

(99)

300

(99)

300

(99)

MLV 1-1D to MLV 3-1: Spike Test (M) (9/1/2026 - 9/21/2026) MLV 2-1 to MLV 4-1: Spike Test (M) (9/22/2026 - 10/12/2026)

Station 9

(segment 109 BH)

1,027

1,027

Station 17

(segment 117 FH)

1,122

1100

(22)

1100

(22)

1,122

MLV 19-1 TO MLV 20-1A: Pipe Replacement (M) (8/4/2026 - 9/12/2026)

Station 25

(segment 125 FH)

1,078

1,078

Station 47

(segment 143 FH)

1,343

1045

(298)

1045

(298)

1285

(58)

1,343

MLV 47-4D to MLV 54-4S: Pig Run - AFD Combo (M) (9/8/2026) MLV 47-4D to MLV 54-4S: Pig Run - EMAT (M) (9/10/2026)

MLV 47-4D to MLV 54-4S: Pig Run - Gauge Cleaning (M) (8/31/2026) MLV 47-4D to MLV 54-4S: Pig Run - Gauge Cleaning (M) (9/1/2026) MLV 47-4D to MLV 54-4S: Pig Run - Gauge Cleaning (M) (9/2/2026)

Sta 47: Unit 1E - Solar Seal Gas System Filtration Install (9/14/2026 - 9/18/2026)

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

683

670

(13)

670

(13)

670

(13)

Sta 834: Unit 1A - Replace Insulation Blanket (9/14/2026 - 9/15/2026) Sta 834: Unit 2A - Replace Insulation Blanket (9/16/2026 - 9/17/2026) Sta 834: Unit 3A - Replace Insulation Blanket (9/18/2026 - 9/19/2026) Sta 834: Unit 4A - Replace Insulation Blanket (9/21/2026 - 9/22/2026)

Sta 834: Unit 4A - Replace Lubrication System (9/7/2026 - 9/11/2026)

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)

1,647

Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/31/2026)

Station 860

(segment 548 BH)

1,593

1,593

786

(807)

1,593

MLV 546-2 to MLV 547-2: Line Recoat (9/8/2026 - 9/10/2026)

Sta 546: Annual ESD Tests & Maintenance (9/7/2026 - 9/11/2026)

Station 860 North (Segment 860 BH)

1,874

1846

(28)

1846

(28)

1530

(344)

1846

(28)

Sta 563: Unit 1A - Annual Inspection & Safety Device Check (9/15/2026 - 9/16/2026)

Sta 563: Unit 2A - Annual Inspection/CAV (9/16/2026 - 9/17/2026)

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)

2534

(151)

2200

(485)

MLV 104-3 to MLV 106-3S: HDD at Kentucky River (9/21/2026 - 9/25/2026) MLV 109-3A to MLV 110-3: Pipe Replacement (9/8/2026 - 9/15/2026) 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 (7/27/2026 - 8/31/2026)

Sta 106: Unit 2D - 4K Solar Turbine Inspection (9/22/2026 - 9/24/2026)

Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 9/30/2026)

Station 114

(segment 114 BH)

907

393

(514)

907

772

(135)

907

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 118A: Solar Turbine Inspection (9/14/2026 - 9/16/2026)

Station 204

(Segment 204 BH)

1,828

1,828

1540

(288)

1760

(68)

1375

(453)

MLV 214-3 to MLV 219-3: Pig Run - Cal/IMU/MFL-A Combo (M) (9/17/2026)

MLV 214-3 to MLV 219-3: Pig Run - Gauge/Cleaning (M) (9/15/2026) Sta 200: Scrubber Filters (9/8/2026 - 9/10/2026)

Sta 204: Scrubber Filter Change (9/24/2026 - 9/26/2026)

Sta 209 Cambridge: Scrubber Filter (9/21/2026 - 9/23/2026)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

September 2026 (updated 06/18/26)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(8/31 - 9/6)

Week 2

(9/7 - 9/13)

Week 3

(9/14 - 9/20)

Week 4

(9/21 - 9/27)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 230C (segment 296

FH)

743

743

370

(373)

743

Sta 230C: Scrubber / Filter Inspection (M) (9/9/2026 - 9/10/2026)

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

888

560

(328)

Sta 264 Charlton: Annual ESD Test (9/23/2026 - 9/24/2026)

Station 307

(segment 307 BH)

1,153

1,153

Station 315

(segment 315 BH)

1,823

1,823

MLV 324

(segment 324 FH)

1,767

1,767

MLV 329

(segment 324 FH)

846

846

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.

Notice Text:

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

Seven Day Forecast (updated 06/18/26)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station / Seg

Est Nominal

Operating Capacity (Thousand Dth)

Monday

(6/22)

Tuesday

(6/23)

Wednesday

(6/24)

Thursday

(6/25)

Friday

(6/26)

Saturday

(6/27)

Sunday

(6/28)

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 BH)

1,027

945

(82)

945

(82)

945

(82)

945

(82)

945

(82)

945

(82)

945

(82)

MLV 4-1 to MLV 5-1: Emergent Repair (6/9/2026 - 7/1/2026)

Station 17

(segment 117 FH)

1,122

1104

(18)

1104

(18)

1104

(18)

1104

(18)

1104

(18)

1104

(18)

1,122

MLV 19-2 TO MLV 20-2A: Pipe Replacement (M) (4/28/2026 - 6/27/2026)

Station 25

(segment 125 FH)

1,078

1055

(23)

1055

(23)

1055

(23)

1055

(23)

1055

(23)

1055

(23)

1055

(23)

MLV 26-1 Relocation: Highway 59 Widening (6/22/2026 - 7/10/2026)

Station 40 KN South (segment 501

FH)

267

267

200

(67)

267

Sta 500C1: Install 500 Line Indicator (6/25/2026)

Station 47

(segment 143 FH)

1,343

1330

(13)

1330

(13)

1330

(13)

1330

(13)

1330

(13)

1330

(13)

1330

(13)

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)

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

683

590

(93)

590

(93)

590

(93)

683

Sta 834: Scrubber Filter Changeout (6/24/2026 - 6/26/2026) Sta 834: Station Outage (6/24/2026 - 6/26/2026)

Station 534 South of Pool (segment 530 BH)

1,550

985

(565)

985

(565)

985

(565)

985

(565)

985

(565)

1528

(22)

1528

(22)

MLV 533-2 to MLV 534-2: Pipe Replacement (M) (6/4/2026 - 6/26/2026) 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

1600

(47)

1600

(47)

1600

(47)

1600

(47)

1600

(47)

1600

(47)

1600

(47)

Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/31/2026)

Sta 542: Unit 3A - Emergent Repair (3/26/2026 - 7/31/2026) Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 7/31/2026)

Station 860

(segment 548 BH)

1,593

1580

(13)

1580

(13)

1580

(13)

1580

(13)

1580

(13)

1580

(13)

1,593

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

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

2415

(270)

2415

(270)

2415

(270)

2415

(270)

2415

(270)

2534

(151)

2534

(151)

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 871 Campbellsville: Annual ESD Test (6/25/2026)

Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 6/26/2026)

Station 114

(segment 114 BH)

907

907

Station 204

(Segment 204 BH)

1,828

1790

(38)

1790

(38)

1790

(38)

1790

(38)

1790

(38)

1790

(38)

1790

(38)

MLV 206-2 to MLV 207-2: Anomaly Remediation (6/22/2026 - 7/2/2026)

Station 219 to

Station 224

(Segment 219 FH)

539

539

140

(399)

539

MLV 219-1D to MLV 224-1: Pig Run - Maintenance (6/23/2026)

Station 245

(segment 245 FH)

986

830

(156)

830

(156)

830

(156)

830

(156)

830

(156)

970

(16)

970

(16)

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)

Station 261 Discharge East (segment 261

FH)

888

888

Station 307

(segment 307 BH)

1,153

1,153

Station 315

(segment 315 BH)

1,823

1,823

MLV 324

(segment 324 FH)

1,767

1,767

Cranston Lateral South

(segment 281

FH)

187

150

(37)

150

(37)

150

(37)

187

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.

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

July 2026 (updated 06/18/26)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(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 BH)

1,027

945

(82)

1,027

640

(387)

640

(387)

1015

(12)

MLV 9-1D to MLV 10-1: Anomaly Remediation (7/27/2026 - 8/2/2026)

Station 17

(segment 117 FH)

1,122

1000

(122)

1000

(122)

1000

(122)

1000

(122)

1000

(122)

MLV 17-3DL to MLV 18-3A: Anomaly Remediation (7/1/2026 - 7/7/2026) MLV 19-3 TO MLV 20-3A: Pipe Replacement (M) (7/1/2026 - 7/31/2026)

Station 25

(segment 125 FH)

1,078

1055

(23)

1055

(23)

1070

(8)

955

(123)

1070

(8)

MLV 25-2 to MLV 26-2: Pipe Replacement (7/11/2026 - 7/29/2026) MLV 26-1 Relocation: Highway 59 Widening (6/22/2026 - 7/10/2026) MLV 26-2 Relocation: Highway 59 Widening (7/11/2026 - 7/29/2026)

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

Station 47

(segment 143 FH)

1,343

1330

(13)

1330

(13)

1020

(323)

1330

(13)

1330

(13)

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)

Station 63

(segment 163 FH)

1,242

1117

(125)

1117

(125)

1117

(125)

901

(341)

901

(341)

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 (7/20/2026 - 7/27/2026)

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

1600

(47)

1600

(47)

1600

(47)

1600

(47)

1600

(47)

MLV 539-2 to MLV 540-2: Anomaly Remediation (7/9/2026 - 7/13/2026) Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/31/2026)

Sta 542: Unit 3A - Emergent Repair (3/26/2026 - 7/31/2026)

Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 7/31/2026)

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)

2280

(405)

2098

(587)

2150

(535)

2150

(535)

MLV 104-1 to MLV 105-1: Anomaly Remediation (7/13/2026 - 8/15/2026) 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) MLV 87-3 to MLV 96-3: Pig Run - EMAT (7/21/2026)

MLV 87-3 to MLV 96-3: Pig Run - MDS (7/7/2026)

MLV 96-3BR to MLV 96-3BL: Spike Test (7/27/2026 - 8/31/2026)

Sta 106: C Building - Install Water Trech System (7/13/2026 - 7/17/2026) 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

1790

(38)

1,828

MLV 206-2 to MLV 207-2: Anomaly Remediation (6/22/2026 - 7/2/2026)

TGP - Outage Impact Report July 2026 (updated 06/18/26)

-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 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)

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

560

(328)

888

Sta 264 Charlton: Controls Upgrade (6/29/2026 - 6/30/2026)

Station 307

(segment 307 BH)

1,153

1,153

775

(378)

775

(378)

930

(223)

1115

(38)

MLV 302-2 to MLV 303-2: Anomaly Remediation (7/7/2026 - 7/18/2026) Sta 219: Unit 1B - Protective Device Checks & GHG (7/20/2026 - 7/24/2026)

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

1450

(317)

Sta 325: Station Outage (7/28/2026 - 7/30/2026)

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.

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

August 2026 (updated 06/18/26)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(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 BH)

1,027

985

(42)

945

(82)

945

(82)

1,027

MLV 11-1A to MLV 11-1: Anomaly Remediation (8/3/2026 - 8/9/2026) MLV 13-1 to MLV 12-1: Anomaly Remediation (8/10/2026 - 8/19/2026)

Station 17

(segment 117 FH)

1,122

1100

(22)

1100

(22)

1100

(22)

1100

(22)

MLV 19-1 TO MLV 20-1A: Pipe Replacement (M) (8/4/2026 - 9/12/2026)

Station 25

(segment 125 FH)

1,078

925

(153)

925

(153)

925

(153)

1,078

MLV 26-3 Relocation: Highway 59 Widening (M) (8/3/2026 - 8/20/2026)

Station 47

(segment 143 FH)

1,343

1255

(88)

1105

(238)

1,343

MLV 40-1D to MLV 47-1S: Pig Run - Maintenance (8/4/2026)

MLV 40-3D to MLV 47-3S: Pig Run - Maintenance Cleaning (8/11/2026) MLV 40-4D to MLV 47-4S: Pig Run - Maintenance (8/13/2026)

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) 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)

1640

(7)

1235

(412)

Sta 542 Dekalb: Annual ESD Test (8/25/2026 - 8/27/2026) Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/31/2026)

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

2457

(228)

2470

(215)

2308

(377)

2050

(635)

MLV 104-1 to MLV 105-1: Anomaly Remediation (7/13/2026 - 8/15/2026) 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 109-5 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 (7/27/2026 - 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

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

888

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

500

(297)

797

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

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

August 2026 (updated 06/18/26)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(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.

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

September 2026 (updated 06/18/26)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(8/31 - 9/6)

Week 2

(9/7 - 9/13)

Week 3

(9/14 - 9/20)

Week 4

(9/21 - 9/27)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409A (Alamo) (segment 492 FH)

274

274

125

(149)

274

MLV 409A-101.1 to MLV 409A-103: Pig Runs - MFL-C (M) (9/10/2026)

Station 1

(segment 101 BH)

399

300

(99)

300

(99)

300

(99)

300

(99)

MLV 1-1D to MLV 3-1: Spike Test (M) (9/1/2026 - 9/21/2026) MLV 2-1 to MLV 4-1: Spike Test (M) (9/22/2026 - 10/12/2026)

Station 9

(segment 109 BH)

1,027

1,027

Station 17

(segment 117 FH)

1,122

1100

(22)

1100

(22)

1,122

MLV 19-1 TO MLV 20-1A: Pipe Replacement (M) (8/4/2026 - 9/12/2026)

Station 25

(segment 125 FH)

1,078

1,078

Station 47

(segment 143 FH)

1,343

1045

(298)

1045

(298)

1285

(58)

1,343

MLV 47-4D to MLV 54-4S: Pig Run - AFD Combo (M) (9/8/2026) MLV 47-4D to MLV 54-4S: Pig Run - EMAT (M) (9/10/2026)

MLV 47-4D to MLV 54-4S: Pig Run - Gauge Cleaning (M) (8/31/2026) MLV 47-4D to MLV 54-4S: Pig Run - Gauge Cleaning (M) (9/1/2026) MLV 47-4D to MLV 54-4S: Pig Run - Gauge Cleaning (M) (9/2/2026)

Sta 47: Unit 1E - Solar Seal Gas System Filtration Install (9/14/2026 - 9/18/2026)

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

683

670

(13)

670

(13)

670

(13)

Sta 834: Unit 4A - Replace Lubrication System (9/7/2026 - 9/11/2026)

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)

1,647

Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/31/2026)

Station 860

(segment 548 BH)

1,593

1,593

786

(807)

1,593

MLV 546-2 to MLV 547-2: Line Recoat (9/8/2026 - 9/10/2026)

Sta 546: Annual ESD Tests & Maintenance (9/7/2026 - 9/11/2026)

Station 860 North (Segment 860 BH)

1,874

1846

(28)

1846

(28)

1530

(344)

1846

(28)

Sta 563: Unit 1A - Annual Inspection & Safety Device Check (9/15/2026 - 9/16/2026)

Sta 563: Unit 2A - Annual Inspection/CAV (9/16/2026 - 9/17/2026)

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)

2534

(151)

2200

(485)

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 (7/27/2026 - 8/31/2026)

Sta 106: Unit 2D - 4K Solar Turbine Inspection (9/22/2026 - 9/24/2026)

Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 9/30/2026)

Station 114

(segment 114 BH)

907

393

(514)

907

772

(135)

907

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 118A: Solar Turbine Inspection (9/14/2026 - 9/16/2026)

Station 204

(Segment 204 BH)

1,828

1,828

1540

(288)

1760

(68)

1375

(453)

MLV 214-3 to MLV 219-3: Pig Run - Cal/IMU/MFL-A Combo (M) (9/17/2026)

MLV 214-3 to MLV 219-3: Pig Run - Gauge/Cleaning (M) (9/15/2026) Sta 200: Scrubber Filters (9/8/2026 - 9/10/2026)

Sta 204: Scrubber Filter Change (9/24/2026 - 9/26/2026)

Sta 209 Cambridge: Scrubber Filter (9/21/2026 - 9/23/2026)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

September 2026 (updated 06/18/26)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(8/31 - 9/6)

Week 2

(9/7 - 9/13)

Week 3

(9/14 - 9/20)

Week 4

(9/21 - 9/27)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 230C (segment 296

FH)

743

743

370

(373)

743

Sta 230C: Scrubber / Filter Inspection (M) (9/9/2026 - 9/10/2026)

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

888

560

(328)

Sta 264 Charlton: Annual ESD Test (9/23/2026 - 9/24/2026)

Station 307

(segment 307 BH)

1,153

1,153

Station 315

(segment 315 BH)

1,823

1,823

MLV 324

(segment 324 FH)

1,767

1,767

MLV 329

(segment 324 FH)

846

846

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.

Tennessee Gas Pipeline Notice 402178

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