Tennessee Gas Pipeline Notice 404277

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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:  09/17/2026 2:57:25PM Notice End Date/Time:  09/18/2026 9:00:00am Post Date/Time:  9/17/2026 2:57:25 PM Notice ID: 404277 Reqrd Rsp:  1 Rsp Date/Time:  9/17/2026 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 09/17/26)

 

 

-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

(9/21)

Tuesday

(9/22)

Wednesday

(9/23)

Thursday

(9/24)

Friday

(9/25)

Saturday

(9/26)

Sunday

(9/27)

 

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

 

 

Station 409A (Alamo) (segment 492 FH)

 

 

 

 

274

 

 

 

125

(149)

 

 

 

125

(149)

 

 

 

125

(149)

 

 

 

125

(149)

 

 

 

125

(149)

 

 

 

215

(59)

 

 

 

215

(59)

MLV 409-1 to MLV 406-1: Spike Test (M) (9/20/2026 - 11/11/2026)

MLV 409A-101.1 to MLV 409A-103: Pig Runs - Cleaning / Gauge (M) (9/21/2026)

MLV 409A-101.1 to MLV 409A-103: Pig Runs - Cleaning / Gauge (M) (9/22/2026)

MLV 409A-101.1 to MLV 409A-103: Pig Runs - Cleaning / Gauge (M) (9/23/2026)

MLV 409A-101.1 to MLV 409A-103: Pig Runs - EMAT (M) (9/25/2026)

MLV 409A-101.1 to MLV 409A-103: Pig Runs - MFL-C (M) (9/24/2026)

Station 409 (Donna Line) (segment 490

FH)

 

564

 

564

 

564

 

564

 

564

 

564

 

564

 

564

 

Station 1

(segment 101 BH)

 

399

300

(99)

300

(99)

300

(99)

300

(99)

300

(99)

300

(99)

300

(99)

Sta 1: Station Power Protection System (9/22/2026)

Station 9

(segment 109 BH)

 

1,027

 

1,027

 

1,027

 

1,027

 

1,027

 

1,027

 

1,027

 

1,027

MLV 1-1D to MLV 5-1: Spike Test (M) (9/21/2026 - 11/2/2026)

Station 17

(segment 117 FH)

 

1,122

 

1085

(37)

 

1085

(37)

 

1085

(37)

 

1085

(37)

 

1,122

 

1,122

 

1,122

MLV 17-1D to MLV 20-1A: Pig Run - Chemical Cleaning (9/21/2026) MLV 17-1D to MLV 20-1A: Pig Run - EMAT (9/24/2026)

MLV 17-1D to MLV 20-1A: Pig Run - GAUGE PLATE (9/22/2026)

MLV 17-1D to MLV 20-1A: Pig Run - MFL-C (9/23/2026)

Station 25

(segment 125 FH)

 

1,078

 

1,078

 

1,078

 

1,078

 

1,078

 

1,078

 

1,078

 

1,078

 

Station 47

(segment 143 FH)

 

1,343

 

1,343

 

1,343

 

1,343

 

1,343

 

1,343

 

1,343

 

1,343

 

Station 63

(segment 163 FH)

 

1,242

1030

(212)

1030

(212)

1030

(212)

1030

(212)

1030

(212)

1030

(212)

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 (9/21/2026 - 9/26/2026)

Station 823

(segment 823 BH)

 

734

 

734

 

734

 

734

 

734

 

734

 

734

 

734

 

Station 834

(segment 834 BH)

 

683

670

(13)

670

(13)

670

(13)

670

(13)

670

(13)

 

683

 

683

Sta 834: Unit 4A - Replace Lubrication System (9/21/2026 - 9/25/2026)

Station 534 South of Pool (segment 530

BH)

 

1,550

 

985

(565)

 

985

(565)

 

985

(565)

 

985

(565)

 

985

(565)

 

985

(565)

 

985

(565)

MLV 533-2 to MLV 534-2: Pipe Replacement (M) (6/4/2026 - 9/27/2026)

Station 860

(segment 548 BH)

 

1,593

 

1545

(48)

 

1545

(48)

 

1545

(48)

 

1545

(48)

 

1545

(48)

 

1577

(16)

 

1577

(16)

Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 9/30/2026) Sta 542: Unit 4A - Cylinder Replacement (9/21/2026 - 9/25/2026)

Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 9/30/2026)

Sta 555: Unit 4A - Engine Maintenance (9/21/2026 - 9/24/2026)

Station 860 North (Segment 860

BH)

 

1,874

 

1495

(379)

 

1495

(379)

 

1846

(28)

 

1846

(28)

 

1846

(28)

 

1846

(28)

 

1846

(28)

Sta 563: Unit 1A - Emergent Repair (8/28/2026 - 9/22/2026) Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 -

12/31/2026)

Sta 860: Unit 1B - Replace Turbocharger (9/21/2026 - 9/25/2026)

 

Station 110

(segment 187 BH)

(south thru Kentucky)

 

 

 

2,685

 

 

 

2407

(278)

 

 

 

2407

(278)

 

 

 

2407

(278)

 

 

 

2407

(278)

 

 

 

2407

(278)

 

 

 

2407

(278)

 

 

 

2407

(278)

MLV 109-5 to MLV 109-5A: Pipe Replacement (9/14/2026 - 10/12/2026) MLV 109-5A to MLV 110-5: Pipe Replacement (9/14/2026 - 10/12/2026) MLV 110-2 to MLV 114-2: CAO - Force Majeure (M) (7/14/2026 - 12/31/2026)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 93-4 to MLV 94-4: Anomaly Remediation (M) (9/21/2026 - 9/28/2026) Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 10/10/2026)

Sta 871: Unit 1A - Bearing (9/12/2026 - 9/30/2026)

Station 114

(segment 114 BH)

 

907

 

907

 

907

 

907

 

907

 

907

 

907

 

907

 

Station 204

(Segment 204 BH)

 

1,828

1715

(113)

1715

(113)

1715

(113)

1715

(113)

1825

(3)

1825

(3)

1825

(3)

MLV 214-2 to MLV 215-2: PHMSA Immediate (9/16/2026 - 10/6/2026)

Sta 204: Unit 5A - Piston (9/21/2026 - 9/24/2026)

Sta 209 Cambridge: Unit 12A - Eutectic Device (9/21/2026 - 9/24/2026)

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)

MLV 256 West

(segment 249 FH)

 

1,203

660

(543)

660

(543)

660

(543)

 

1,203

 

1,203

 

1,203

 

1,203

MLV 258-2 to MLV 259-2: Emergent Repair (9/9/2026 - 9/23/2026)

Station 261 Discharge East (segment 261

FH)

 

888

 

715

(173)

 

715

(173)

 

715

(173)

 

555

(333)

 

555

(333)

 

715

(173)

 

715

(173)

Sta 264 Charlton: Annual ESD Test (9/24/2026 - 9/25/2026)

Sta 264 Charlton: Unit 1C - Engine Maintenance (8/24/2026 - 10/16/2026)

Station 307

(segment 307 BH)

 

1,153

1010

(143)

1010

(143)

 

1,153

 

1,153

 

1,153

 

1,153

 

1,153

Sta 310: Unit 1A - Water Washes and Borescope (9/21/2026 - 9/22/2026)

Station 313 Discharge (segment 399

FH)

 

797

 

797

 

797

 

797

 

797

 

797

 

797

 

797

 

Station 315

(segment 315 BH)

 

1,823

 

1,823

 

1,823

 

1,823

 

1,823

 

1,823

 

1,823

 

1,823

 

Station 321

(segment 321 FH)

 

2,102

1830

(272)

1830

(272)

1830

(272)

1830

(272)

 

2,102

 

2,102

 

2,102

Sta 323: Station Outage (9/21/2026 - 9/24/2026)

MLV 324

(segment 324 FH)

 

1,767

 

1,767

 

1,767

 

1,767

 

1,767

 

1,767

 

1,767

 

1,767

 

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

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

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


 

 

 

 

 

-Primary impact restrictions may be necessary

 

 

TGP - Outage Impact Report

 

 

-Major impact restrictions may be necessary

 

October 2026 (updated 09/17/26)

 

 

-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

(9/28 - 10/4)

Week 2

(10/5 - 10/11)

Week 3

(10/12 - 10/18)

Week 4

(10/19 - 10/25)

Week 5

(10/26 - 11/1)

 

Primary Outage(s)

 

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409A (Alamo) (segment 492

FH)

 

274

 

215

(59)

 

215

(59)

 

215

(59)

 

215

(59)

 

215

(59)

MLV 409-1 to MLV 406-1: Spike Test (M) (9/20/2026 - 11/11/2026)

Station 409 (Donna Line) (segment 490

FH)

 

564

 

564

 

564

 

564

 

564

 

564

 

Station 1

(segment 101 BH)

 

399

300

(99)

300

(99)

300

(99)

300

(99)

300

(99)

 

Station 9

(segment 109 BH)

 

1,027

 

1,027

 

1,027

 

1,027

125

(902)

946

(81)

MLV 1-1D to MLV 5-1: Spike Test (M) (9/21/2026 - 11/2/2026)

MLV 9-2S to MLV 1-2: Pig Runs - Cleaning / Maintenance (M) (10/22/2026) MLV 9-3 to MLV 5-3: Pig Run - Maintenance (M) (10/21/2026)

 

 

Station 17

(segment 117 FH)

 

 

 

1,122

 

 

 

1,122

 

 

985

(137)

 

 

980

(142)

 

 

1100

(22)

 

 

 

1,122

MLV 17-2D to MLV 20-2A: Pig Run - Chemical Cleaning (10/19/2026 - 10/20/2026)

MLV 17-2D to MLV 20-2A: Pig Run - GAUGE (10/21/2026) MLV 17-2D to MLV 20-2A: Pig Run - MFL-A (10/22/2026)

MLV 32-2D TO MLV 40-2S: Pig Runs - Maintenance (10/8/2026) MLV 32-3D to MLV 40-3S: Pig Runs - Maintenance (10/13/2026)

Sta 25: Annual ESD Test (10/13/2026)

Station 25

(segment 125 FH)

 

1,078

 

1,078

 

1,078

 

1,078

 

1,078

 

1,078

 

 

Station 47

(segment 143 FH)

 

 

1,343

 

1025

(318)

 

1025

(318)

 

1290

(53)

 

1300

(43)

 

 

1,343

MLV 58-2 to MLV 59-2: Anomaly Remediation (10/10/2026 - 10/20/2026) Sta 47: Scrubber/Filter/Separator Cleaning/Inspection/Changeout (9/28/2026 -

10/2/2026)

Sta 47: Station Transformer Maintenance (10/6/2026)

Sta 47: Unit 1D - 16K hour Overhaul (10/5/2026 - 10/15/2026)

 

Station 63

(segment 163 FH)

 

 

1,242

 

 

1117

(125)

 

 

1117

(125)

 

 

1030

(212)

 

 

1030

(212)

 

 

1117

(125)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 73-1 to MLV 74-1: Anomaly Remediation (10/12/2026 - 10/23/2026) MLV 82-1 to MLV 87-1: Pig Run - AFD/Cal/IMU (10/8/2026)

MLV 82-1 to MLV 87-1: Pig Run - Cleaning / Gauge (10/6/2026) MLV 82-1 to MLV 87-1: Pig Run - EMAT (10/13/2026)

MLV 84-3 to MLV 85-3: Anomaly Remedition (9/28/2026 - 10/3/2026)

Station 823

(segment 823 BH)

 

734

 

734

 

734

 

734

 

734

 

734

 

Station 834

(segment 834 BH)

 

683

 

683

 

683

 

670

(13)

 

670

(13)

 

683

Sta 834: Unit 1A - Replace Insulation Blanket (10/12/2026 - 10/13/2026) Sta 834: Unit 2A - Replace Insulation Blanket (10/14/2026 - 10/15/2026) Sta 834: Unit 3A - Replace Insulation Blanket (10/16/2026 - 10/17/2026)

Sta 834: Unit 4A - Replace Insulation Blanket (10/19/2026 - 10/20/2026)

Station 534 South of Pool (segment 530

BH)

 

1,550

 

1,550

 

1440

(110)

 

1175

(375)

 

1,550

 

1,550

Sta 529: Unit 1A - Solar Inspection (10/12/2026 - 10/15/2026)

Sta. 527 Port Sulphur: Building C - Medium Voltage Electrical Testing (10/5/2026 - 10/9/2026)

Station 534

(segment 534 BH)

 

1,909

 

1,909

 

1,909

1770

(139)

 

1,909

 

1,909

Sta 538: Boost Pump Vibration Upgrade (10/12/2026 - 10/15/2026)

Station 860

(segment 548 BH)

 

1,593

1577

(16)

 

1,593

 

1,593

1181

(412)

 

1,593

Sta 542 Dekalb: Annual ESD Test (10/20/2026 - 10/22/2026) Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 9/30/2026)

Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 9/30/2026)

Station 860 North (Segment 860

BH)

 

1,874

 

1846

(28)

 

1846

(28)

 

1475

(399)

 

1475

(399)

 

1475

(399)

MLV 560-2 to MLV 563-2: Pipe Replacements (M) (10/15/2026 - 10/26/2026) Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2026)

 

 

 

 

 

 

 

Station 110

(segment 187 BH)

(south thru Kentucky)

 

 

 

 

 

 

 

 

 

2,685

 

 

 

 

 

 

 

 

 

2407

(278)

 

 

 

 

 

 

 

 

 

2043

(642)

 

 

 

 

 

 

 

 

 

1972

(713)

 

 

 

 

 

 

 

 

 

2428

(257)

 

 

 

 

 

 

 

 

 

1822

(863)

MLV 103-3 to MLV 105-3: Crossover Upgrade (10/10/2026 - 10/17/2026) MLV 104-3 to MLV 106-3S: HDD at Kentucky River (10/10/2026 - 10/17/2026) MLV 109-3A to MLV 110-3: Pipe Replacement (10/14/2026 - 10/30/2026) MLV 109-5 to MLV 109-5A: Pipe Replacement (9/14/2026 - 10/12/2026)

MLV 109-5A to MLV 110-5: Pipe Replacement (9/14/2026 - 10/12/2026) MLV 110-2 to MLV 114-2: CAO - Force Majeure (M) (7/14/2026 - 12/31/2026)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 867-2 to MLV 868-2: Anomaly Remediation (10/19/2026 - 10/24/2026) MLV 870-2 to MLV 870-2R: Anomaly Remediation (10/12/2026 - 10/17/2026) MLV 93-4 to MLV 94-4: Anomaly Remediation (M) (9/21/2026 - 9/28/2026) MLV 97-3 to MLV 106-3: Pig Run - Cleaning / Gauge (10/27/2026)

MLV 97-3 to MLV 106-3: Pig Run - MFL-S (10/29/2026)

Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 10/10/2026) Sta 871: Unit 1A - Bearing (9/12/2026 - 9/30/2026)

Sta 875: Unit 1A- 8K Solar Turbine Inspection (10/27/2026 - 10/29/2026) Sta 96: Unit 2D Replace Compressor Valves (10/12/2026 - 10/15/2026)

Station 114

(segment 114 BH)

 

907

 

907

853

(54)

 

907

 

907

 

907

Sta 118A Tyler Mountain: Annual ESD Test (10/5/2026 - 10/6/2026)


 

TGP - Outage Impact Report October 2026 (updated 09/17/26)

-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

(9/28 - 10/4)

Week 2

(10/5 - 10/11)

Week 3

(10/12 - 10/18)

Week 4

(10/19 - 10/25)

Week 5

(10/26 - 11/1)

 

Primary Outage(s)

 

Est. Operational Capacity (Operational Impact) - Thousand Dth

 

 

 

 

 

Station 204

(Segment 204 BH)

 

 

 

 

 

 

1,828

 

 

 

 

 

1415

(413)

 

 

 

 

 

1750

(78)

 

 

 

 

 

1745

(83)

 

 

 

 

 

1745

(83)

 

 

 

 

 

1690

(138)

MLV 209-2 to MLV 214-2: Pig Run - Chem Cleaning (10/26/2026)

MLV 209-2 to MLV 214-2: Pig Run - Chem Cleaning (10/27/2026) MLV 209-2 to MLV 214-2: Pig Run - Chem Cleaning (10/28/2026) MLV 209-2 to MLV 214-2: Pig Run - Chem Cleaning (10/29/2026) MLV 209-2 to MLV 214-2: Pig Run - Chem Cleaning (10/30/2026) MLV 214-1 to MLV 219-1: Pig Run - Cal/IMU (10/20/2026)

MLV 214-1 to MLV 219-1: Pig Run - Gauge/Cleaning (10/15/2026) MLV 214-1 to MLV 219-1: Pig Run - MFL-C (10/22/2026)

MLV 214-2 to MLV 215-2: PHMSA Immediate (9/16/2026 - 10/6/2026)

Sta 204: Scrubber Filter Change (10/1/2026 - 10/3/2026) Sta 209 Cambridge: Scrubber Filter (9/28/2026 - 9/30/2026)

Sta 209 Cambridge: Unit 11A - Eutectic Device (9/28/2026 - 9/30/2026)

Sta. 200: Unit 1B - Replace Turbochargers (10/4/2026 - 10/30/2026)

Station 233

(segment 233 FH)

 

459

355

(104)

 

459

 

459

 

459

 

459

MLV 233-2 to MLV 235-2: Pig Run (9/30/2026)

Station 245

(segment 245 FH)

 

986

 

970

(16)

 

970

(16)

 

970

(16)

 

970

(16)

 

760

(226)

Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026) Sta 245-1 to MLV 249-1: Pig Run - EMAT (10/28/2026)

Sta 245-1 to MLV 249-1: Pig Run - MFL-C - Rerun (10/27/2026)

MLV 256 West

(segment 249 FH)

 

1,203

642

(561)

 

1,203

 

1,203

 

1,203

 

1,203

Sta 249-2 to MLV 254-2: Pig Run - Hardspot Rerun (9/30/2026)

Station 261 Discharge East (segment 261

FH)

 

888

 

500

(388)

 

715

(173)

 

555

(333)

 

888

 

888

Sta 261 Agawam: Annual ESD test (M) (9/28/2026 - 10/2/2026)

Sta 264 Charlton: Unit 1C - Engine Maintenance (8/24/2026 - 10/16/2026) Sta 264: Oil System (10/12/2026 - 10/16/2026)

Station 307

(segment 307 BH)

 

1,153

 

1,153

 

1,153

765

(388)

765

(388)

765

(388)

MLV 302-2 to MLV 303-2: Anomaly Remediation (10/16/2026 - 10/27/2026) Sta 303A: Unit 1A - Water Wash (10/19/2026 - 10/22/2026)

Station 313 Discharge (segment 399

FH)

 

797

 

207

(590)

 

207

(590)

 

207

(590)

 

797

 

797

MLV 313A-403 to MLV 313A-404: Anomaly Remediation (9/29/2026 - 10/15/2026)

Station 315

(segment 315 BH)

 

1,823

 

1,823

 

1,823

 

1,823

 

1,823

 

1,823

 

MLV 324

(segment 324 FH)

 

1,767

1450

(317)

 

1,767

 

1,767

1550

(217)

 

1,767

MLV 325-1 to MLV 329-1: Pig runs - Cleaning/Gauge (M) (10/19/2026) MLV 325-1 to MLV 329-1: Pig runs - EMAT (M) (10/20/2026)

Sta 325: Station Outage (9/29/2026 - 10/1/2026)

Cranston Lateral South

(segment 281

FH)

 

187

 

187

 

187

 

125

(62)

 

187

 

187

Sta 265: Unit 1A - Replace Lube Oil Fan (10/12/2026)

Station 405 HC Line (segment 299

FH)

 

794

 

794

 

794

 

670

(124)

 

794

 

794

Sta 405A: Unit 1A - 4k Waterwash (10/13/2026) ; Sta 405A: Unit 1A - 8K Solar Turbine Inspection (10/14/2026)

Station 224

(segment 224 FH)

 

388

 

388

200

(188)

 

388

 

388

 

388

MLV 229-2 to MLV 232-2: Pig runs - Maintenance (M) (10/6/2026)

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

 

November 2026 (updated 09/17/26)

 

-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

(11/2 - 11/8)

Week 2

(11/9 - 11/15)

Week 3

(11/16 - 11/22)

Week 4

(11/23 - 11/29)

 

Primary Outage(s)

 

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409A (Alamo) (segment 492

FH)

 

297

 

260

(37)

 

260

(37)

 

297

 

297

MLV 409-1 to MLV 406-1: Spike Test (M) (9/20/2026 - 11/11/2026)

Station 409 (Donna Line) (segment 490

FH)

 

587

 

587

 

587

 

587

 

587

 

MLV 406

(segment 406 BH)

 

479

 

479

 

479

 

479

 

479

 

Station 1

(segment 101 BH)

 

438

 

438

399

(39)

226

(212)

 

438

MLV 400-1 to MLV 409-1: Pig Run - Maintenance Cleaning (M) (11/10/2026) MLV 400-2 to MLV 409-2: Pig Run - Maintenance Cleaning (M) (11/17/2026)

Station 9

(segment 109 BH)

 

1,066

985

(81)

880

(186)

 

1,066

 

1,066

MLV 1-1D to MLV 5-1: Spike Test (M) (9/21/2026 - 11/2/2026)

MLV 1-1D to MLV 9-1S: Pig Run - Maintenance / Cleaning (M) (11/10/2026)

Station 17

(segment 117 FH)

 

1,138

 

1,138

 

1,138

 

1,138

 

1,138

 

Station 25

(segment 125 FH)

 

1,095

 

1,095

 

1,095

 

1,095

 

1,095

 

Station 40 South

(segment 132 FH)

 

1,294

 

1,294

 

1,294

 

915

(379)

 

1,294

Sta 32: Annual ESD Test (11/17/2026 - 11/18/2026)

Station 47

(segment 143 FH)

 

1,428

1350

(78)

1350

(78)

 

1,428

 

1,428

MLV 61-3 to MLV 62-3: Pipe Replacements (11/2/2026 - 11/13/2026)

Station 63

(segment 163 FH)

 

1,192

871

(321)

1067

(125)

1067

(125)

1067

(125)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 71-3D to MLV 74-3: Pig Runs - Cleaning / Gauge (11/3/2026)

MLV 71-3D to MLV 74-3: Pig Runs - TDW MDS (11/5/2026)

Station 823

(segment 823 BH)

 

758

210

(548)

 

758

 

758

 

758

Sta 827 to Sta 823: Pig Run - Maintenance (M) (11/5/2026) Sta 834 to Sta 827: Maintenance Pig (M) (11/5/2026)

Station 860

(segment 548 BH)

 

1,665

1660

(5)

1450

(215)

 

1,665

 

1,665

Sta 550 Hamilton: Annual ESD Test (11/9/2026)

Sta 550: Unit 1B - Juction Box Rewire & Unit Valves (11/2/2026 - 11/13/2026)

 

Station 860 North (Segment 860 BH)

 

 

2,059

 

 

2031

(28)

 

 

2031

(28)

 

 

2031

(28)

 

 

2031

(28)

Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2026) Sta 860: Unit 1C - 4K/Turbine Waterwash/Boroscope (11/2/2026 - 11/3/2026) Sta 860: Unit 2C - 4K/Turbine Waterwash/Boroscope (11/3/2026 - 11/4/2026)

Station 110

(segment 187 BH)

(south thru

Kentucky)

 

 

2,594

 

1951

(643)

 

2327

(267)

 

2327

(267)

 

2327

(267)

MLV 110-2 to MLV 114-2: CAO - Force Majeure (M) (7/14/2026 - 12/31/2026)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 97-3 to MLV 106-3: Pig Run - EMAT (11/5/2026)

MLV 97-3 to MLV 106-3: Pig Run - MFL-C (11/3/2026)

Station 114

(segment 114 BH)

 

946

858

(88)

 

946

 

946

 

946

Sta 118A: Solar Turbine Inspection (11/2/2026 - 11/4/2026)

 

 

Station 204

(Segment 204 BH)

 

 

 

1,888

 

 

1765

(123)

 

 

1405

(483)

 

 

1425

(463)

 

 

 

1,888

MLV 204-4 to MLV 209-4: Pig Run - Cal/IMU (11/12/2026)

MLV 204-4 to MLV 209-4: Pig Run - Efficiency (11/11/2026) MLV 204-4 to MLV 209-4: Pig Run - EMAT (11/19/2026) MLV 204-4 to MLV 209-4: Pig Run - Gauge (11/10/2026) MLV 204-4 to MLV 209-4: Pig Run - MFL-C (11/17/2026) MLV 209-2 to MLV 214-2: Pig Run - CAL/IMU (11/3/2026) MLV 209-2 to MLV 214-2: Pig Run - EMAT (11/5/2026)

Station 245

(segment 245 FH)

 

1,043

 

1,043

 

1,043

 

1,043

 

1,043

 

Station 261 Discharge East (segment 261

FH)

 

1,034

 

1,034

 

1,034

 

1,034

 

1,034

 

Station 307

(segment 307 BH)

 

1,203

1020

(183)

 

1,203

 

1,203

 

1,203

Sta 219: Annual ESD Test & Scrubber Maintenance (11/3/2026 - 11/6/2026)


 

 

 

-Primary impact restrictions may be necessary

 

TGP - Outage Impact Report

 

-Major impact restrictions may be necessary

 

November 2026 (updated 09/17/26)

 

-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

(11/2 - 11/8)

Week 2

(11/9 - 11/15)

Week 3

(11/16 - 11/22)

Week 4

(11/23 - 11/29)

 

Primary Outage(s)

 

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 313 Discharge (segment 399

FH)

 

810

 

810

 

810

 

810

 

810

 

Station 315

(segment 315 BH)

 

1,885

 

1,885

 

1,885

 

1,885

 

1,885

 

Station 321

(segment 321 FH)

 

2,220

2035

(185)

 

2,220

 

2,220

 

2,220

MLV 319-1 to MLV 320-1: Hot Tap (11/5/2026)

MLV 324

(segment 324 FH)

 

1,883

 

1,883

 

1,883

 

1,883

 

1,883

 

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

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

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

 

 

 

 

 

-Primary impact restrictions may be necessary

 

 

TGP - Outage Impact Report

 

 

-Major impact restrictions may be necessary

 

December 2026 (updated 09/17/26)

 

-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

(11/30 - 12/6)

Week 2

(12/7 - 12/13)

Week 3

(12/14 - 12/20)

Week 4

(12/21 - 12/27)

Week 5

(12/28 - 1/3)

 

Primary Outage(s)

 

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490

FH)

 

587

 

587

 

587

 

587

 

587

 

587

 

Station 1

(segment 101 BH)

 

438

 

438

 

438

 

438

 

438

 

438

 

Station 9

(segment 109 BH)

 

1,066

 

1,066

 

1,066

 

1,066

 

1,066

 

1,066

 

Station 25

(segment 125 FH)

 

1,095

 

1,095

 

1,095

 

1,095

 

1,095

 

1,095

 

Carthage Lateral (segment 700 FH)

 

310

 

80

(230)

 

80

(230)

 

310

 

310

 

310

MLV 706-1 to MLV 700-1: Pig Run - Chemical Cleaning (M) (12/2/2026) MLV 706-1 to MLV 700-1: Pig Run - Chemical Cleaning (M) (12/3/2026) MLV 706-1 to MLV 700-1: Pig Run - Chemical Cleaning (M) (12/4/2026)

MLV 706-1 to MLV 700-1: Pig Run - MDS (M) (12/10/2026)

Station 47

(segment 143 FH)

 

1,428

 

1,428

 

1,428

 

1,428

 

1,428

 

1,428

 

Station 63

(segment 163 FH)

 

1,192

1067

(125)

1067

(125)

1067

(125)

1067

(125)

1067

(125)

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

Station 823

(segment 823 BH)

 

758

 

758

 

758

 

758

 

758

 

758

 

Station 860

(segment 548 BH)

 

1,665

 

1,665

 

1,665

 

1,665

 

1,665

 

1,665

 

Station 860 North (Segment 860

BH)

 

2,059

 

2031

(28)

 

2031

(28)

 

2031

(28)

 

2031

(28)

 

2031

(28)

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

Station 110

(segment 187 BH)

(south thru

Kentucky)

 

 

2,594

 

2327

(267)

 

2327

(267)

 

2327

(267)

 

2327

(267)

 

2327

(267)

MLV 110-2 to MLV 114-2: CAO - Force Majeure (M) (7/14/2026 - 12/31/2026)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) Sta 87: Unit 1E - Safety Device Testing (12/15/2026)

Sta 87: Unit 2E - Safety Device Tests (12/16/2026)

Station 114

(segment 114 BH)

 

946

 

946

 

946

835

(111)

 

946

 

946

Sta 114: Unit 1D - Solar Turbine Inspection (12/14/2026 - 12/16/2026)

Station 204

(Segment 204 BH)

 

1,888

 

1,888

 

1,888

 

1,888

 

1,888

 

1,888

 

Station 245

(segment 245 FH)

 

1,043

 

1,043

768

(275)

 

1,043

 

1,043

 

1,043

MLV 237-1 to MLV 245-1: Pig Run - Cleaning/Gauge (12/7/2026) MLV 237-1 to MLV 245-1: Pig Run - EMAT (12/9/2026)

Station 261 Discharge East (segment 261

FH)

 

1,034

 

1,034

 

1,034

 

1,034

 

1,034

 

1,034

 

Station 307

(segment 307 BH)

 

1,203

 

1,203

 

1,203

 

1,203

 

1,203

 

1,203

 

Station 313 Discharge (segment 399

FH)

 

810

 

810

 

810

 

810

 

810

 

810

 

Station 315

(segment 315 BH)

 

1,885

 

1,885

 

1,885

 

1,885

 

1,885

 

1,885

 

MLV 324

(segment 324 FH)

 

1,883

 

1,883

 

1,883

 

1,883

 

1,883

 

1,883

 

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

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

TSP/TSP Name:  1939164-TENNESSEE GAS PIPELINE Critical: Y Notice Type Desc (1):  MAINTENANCE Notice Type Desc (2):  MAINTENANCE Notice Eff Date/Time:  09/17/2026 2:57:25PM Notice End Date/Time:  09/18/2026 9:00:00am Post Date/Time:  9/17/2026 2:57:25 PM Notice ID: 404277 Reqrd Rsp:  1 Rsp Date/Time:  9/17/2026 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 09/17/26)

 

 

-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

(9/21)

Tuesday

(9/22)

Wednesday

(9/23)

Thursday

(9/24)

Friday

(9/25)

Saturday

(9/26)

Sunday

(9/27)

 

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

 

 

Station 409A (Alamo) (segment 492 FH)

 

 

 

 

274

 

 

 

125

(149)

 

 

 

125

(149)

 

 

 

125

(149)

 

 

 

125

(149)

 

 

 

125

(149)

 

 

 

215

(59)

 

 

 

215

(59)

MLV 409-1 to MLV 406-1: Spike Test (M) (9/20/2026 - 11/11/2026)

MLV 409A-101.1 to MLV 409A-103: Pig Runs - Cleaning / Gauge (M) (9/21/2026)

MLV 409A-101.1 to MLV 409A-103: Pig Runs - Cleaning / Gauge (M) (9/22/2026)

MLV 409A-101.1 to MLV 409A-103: Pig Runs - Cleaning / Gauge (M) (9/23/2026)

MLV 409A-101.1 to MLV 409A-103: Pig Runs - EMAT (M) (9/25/2026)

MLV 409A-101.1 to MLV 409A-103: Pig Runs - MFL-C (M) (9/24/2026)

Station 409 (Donna Line) (segment 490

FH)

 

564

 

564

 

564

 

564

 

564

 

564

 

564

 

564

 

Station 1

(segment 101 BH)

 

399

300

(99)

300

(99)

300

(99)

300

(99)

300

(99)

300

(99)

300

(99)

Sta 1: Station Power Protection System (9/22/2026)

Station 9

(segment 109 BH)

 

1,027

 

1,027

 

1,027

 

1,027

 

1,027

 

1,027

 

1,027

 

1,027

MLV 1-1D to MLV 5-1: Spike Test (M) (9/21/2026 - 11/2/2026)

Station 17

(segment 117 FH)

 

1,122

 

1085

(37)

 

1085

(37)

 

1085

(37)

 

1085

(37)

 

1,122

 

1,122

 

1,122

MLV 17-1D to MLV 20-1A: Pig Run - Chemical Cleaning (9/21/2026) MLV 17-1D to MLV 20-1A: Pig Run - EMAT (9/24/2026)

MLV 17-1D to MLV 20-1A: Pig Run - GAUGE PLATE (9/22/2026)

MLV 17-1D to MLV 20-1A: Pig Run - MFL-C (9/23/2026)

Station 25

(segment 125 FH)

 

1,078

 

1,078

 

1,078

 

1,078

 

1,078

 

1,078

 

1,078

 

1,078

 

Station 47

(segment 143 FH)

 

1,343

 

1,343

 

1,343

 

1,343

 

1,343

 

1,343

 

1,343

 

1,343

 

Station 63

(segment 163 FH)

 

1,242

1030

(212)

1030

(212)

1030

(212)

1030

(212)

1030

(212)

1030

(212)

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 (9/21/2026 - 9/26/2026)

Station 823

(segment 823 BH)

 

734

 

734

 

734

 

734

 

734

 

734

 

734

 

734

 

Station 834

(segment 834 BH)

 

683

670

(13)

670

(13)

670

(13)

670

(13)

670

(13)

 

683

 

683

Sta 834: Unit 4A - Replace Lubrication System (9/21/2026 - 9/25/2026)

Station 534 South of Pool (segment 530

BH)

 

1,550

 

985

(565)

 

985

(565)

 

985

(565)

 

985

(565)

 

985

(565)

 

985

(565)

 

985

(565)

MLV 533-2 to MLV 534-2: Pipe Replacement (M) (6/4/2026 - 9/27/2026)

Station 860

(segment 548 BH)

 

1,593

 

1545

(48)

 

1545

(48)

 

1545

(48)

 

1545

(48)

 

1545

(48)

 

1577

(16)

 

1577

(16)

Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 9/30/2026) Sta 542: Unit 4A - Cylinder Replacement (9/21/2026 - 9/25/2026)

Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 9/30/2026)

Sta 555: Unit 4A - Engine Maintenance (9/21/2026 - 9/24/2026)

Station 860 North (Segment 860

BH)

 

1,874

 

1495

(379)

 

1495

(379)

 

1846

(28)

 

1846

(28)

 

1846

(28)

 

1846

(28)

 

1846

(28)

Sta 563: Unit 1A - Emergent Repair (8/28/2026 - 9/22/2026) Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 -

12/31/2026)

Sta 860: Unit 1B - Replace Turbocharger (9/21/2026 - 9/25/2026)

 

Station 110

(segment 187 BH)

(south thru Kentucky)

 

 

 

2,685

 

 

 

2407

(278)

 

 

 

2407

(278)

 

 

 

2407

(278)

 

 

 

2407

(278)

 

 

 

2407

(278)

 

 

 

2407

(278)

 

 

 

2407

(278)

MLV 109-5 to MLV 109-5A: Pipe Replacement (9/14/2026 - 10/12/2026) MLV 109-5A to MLV 110-5: Pipe Replacement (9/14/2026 - 10/12/2026) MLV 110-2 to MLV 114-2: CAO - Force Majeure (M) (7/14/2026 - 12/31/2026)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 93-4 to MLV 94-4: Anomaly Remediation (M) (9/21/2026 - 9/28/2026) Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 10/10/2026)

Sta 871: Unit 1A - Bearing (9/12/2026 - 9/30/2026)

Station 114

(segment 114 BH)

 

907

 

907

 

907

 

907

 

907

 

907

 

907

 

907

 

Station 204

(Segment 204 BH)

 

1,828

1715

(113)

1715

(113)

1715

(113)

1715

(113)

1825

(3)

1825

(3)

1825

(3)

MLV 214-2 to MLV 215-2: PHMSA Immediate (9/16/2026 - 10/6/2026)

Sta 204: Unit 5A - Piston (9/21/2026 - 9/24/2026)

Sta 209 Cambridge: Unit 12A - Eutectic Device (9/21/2026 - 9/24/2026)

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)

MLV 256 West

(segment 249 FH)

 

1,203

660

(543)

660

(543)

660

(543)

 

1,203

 

1,203

 

1,203

 

1,203

MLV 258-2 to MLV 259-2: Emergent Repair (9/9/2026 - 9/23/2026)

Station 261 Discharge East (segment 261

FH)

 

888

 

715

(173)

 

715

(173)

 

715

(173)

 

555

(333)

 

555

(333)

 

715

(173)

 

715

(173)

Sta 264 Charlton: Annual ESD Test (9/24/2026 - 9/25/2026)

Sta 264 Charlton: Unit 1C - Engine Maintenance (8/24/2026 - 10/16/2026)

Station 307

(segment 307 BH)

 

1,153

1010

(143)

1010

(143)

 

1,153

 

1,153

 

1,153

 

1,153

 

1,153

Sta 310: Unit 1A - Water Washes and Borescope (9/21/2026 - 9/22/2026)

Station 313 Discharge (segment 399

FH)

 

797

 

797

 

797

 

797

 

797

 

797

 

797

 

797

 

Station 315

(segment 315 BH)

 

1,823

 

1,823

 

1,823

 

1,823

 

1,823

 

1,823

 

1,823

 

1,823

 

Station 321

(segment 321 FH)

 

2,102

1830

(272)

1830

(272)

1830

(272)

1830

(272)

 

2,102

 

2,102

 

2,102

Sta 323: Station Outage (9/21/2026 - 9/24/2026)

MLV 324

(segment 324 FH)

 

1,767

 

1,767

 

1,767

 

1,767

 

1,767

 

1,767

 

1,767

 

1,767

 

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

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

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


 

 

 

 

 

-Primary impact restrictions may be necessary

 

 

TGP - Outage Impact Report

 

 

-Major impact restrictions may be necessary

 

October 2026 (updated 09/17/26)

 

 

-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

(9/28 - 10/4)

Week 2

(10/5 - 10/11)

Week 3

(10/12 - 10/18)

Week 4

(10/19 - 10/25)

Week 5

(10/26 - 11/1)

 

Primary Outage(s)

 

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409A (Alamo) (segment 492

FH)

 

274

 

215

(59)

 

215

(59)

 

215

(59)

 

215

(59)

 

215

(59)

MLV 409-1 to MLV 406-1: Spike Test (M) (9/20/2026 - 11/11/2026)

Station 409 (Donna Line) (segment 490

FH)

 

564

 

564

 

564

 

564

 

564

 

564

 

Station 1

(segment 101 BH)

 

399

300

(99)

300

(99)

300

(99)

300

(99)

300

(99)

 

Station 9

(segment 109 BH)

 

1,027

 

1,027

 

1,027

 

1,027

125

(902)

946

(81)

MLV 1-1D to MLV 5-1: Spike Test (M) (9/21/2026 - 11/2/2026)

MLV 9-2S to MLV 1-2: Pig Runs - Cleaning / Maintenance (M) (10/22/2026) MLV 9-3 to MLV 5-3: Pig Run - Maintenance (M) (10/21/2026)

 

 

Station 17

(segment 117 FH)

 

 

 

1,122

 

 

 

1,122

 

 

985

(137)

 

 

980

(142)

 

 

1100

(22)

 

 

 

1,122

MLV 17-2D to MLV 20-2A: Pig Run - Chemical Cleaning (10/19/2026 - 10/20/2026)

MLV 17-2D to MLV 20-2A: Pig Run - GAUGE (10/21/2026) MLV 17-2D to MLV 20-2A: Pig Run - MFL-A (10/22/2026)

MLV 32-2D TO MLV 40-2S: Pig Runs - Maintenance (10/8/2026) MLV 32-3D to MLV 40-3S: Pig Runs - Maintenance (10/13/2026)

Sta 25: Annual ESD Test (10/13/2026)

Station 25

(segment 125 FH)

 

1,078

 

1,078

 

1,078

 

1,078

 

1,078

 

1,078

 

 

Station 47

(segment 143 FH)

 

 

1,343

 

1025

(318)

 

1025

(318)

 

1290

(53)

 

1300

(43)

 

 

1,343

MLV 58-2 to MLV 59-2: Anomaly Remediation (10/10/2026 - 10/20/2026) Sta 47: Scrubber/Filter/Separator Cleaning/Inspection/Changeout (9/28/2026 -

10/2/2026)

Sta 47: Station Transformer Maintenance (10/6/2026)

Sta 47: Unit 1D - 16K hour Overhaul (10/5/2026 - 10/15/2026)

 

Station 63

(segment 163 FH)

 

 

1,242

 

 

1117

(125)

 

 

1117

(125)

 

 

1030

(212)

 

 

1030

(212)

 

 

1117

(125)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 73-1 to MLV 74-1: Anomaly Remediation (10/12/2026 - 10/23/2026) MLV 82-1 to MLV 87-1: Pig Run - AFD/Cal/IMU (10/8/2026)

MLV 82-1 to MLV 87-1: Pig Run - Cleaning / Gauge (10/6/2026) MLV 82-1 to MLV 87-1: Pig Run - EMAT (10/13/2026)

MLV 84-3 to MLV 85-3: Anomaly Remedition (9/28/2026 - 10/3/2026)

Station 823

(segment 823 BH)

 

734

 

734

 

734

 

734

 

734

 

734

 

Station 834

(segment 834 BH)

 

683

 

683

 

683

 

670

(13)

 

670

(13)

 

683

Sta 834: Unit 1A - Replace Insulation Blanket (10/12/2026 - 10/13/2026) Sta 834: Unit 2A - Replace Insulation Blanket (10/14/2026 - 10/15/2026) Sta 834: Unit 3A - Replace Insulation Blanket (10/16/2026 - 10/17/2026)

Sta 834: Unit 4A - Replace Insulation Blanket (10/19/2026 - 10/20/2026)

Station 534 South of Pool (segment 530

BH)

 

1,550

 

1,550

 

1440

(110)

 

1175

(375)

 

1,550

 

1,550

Sta 529: Unit 1A - Solar Inspection (10/12/2026 - 10/15/2026)

Sta. 527 Port Sulphur: Building C - Medium Voltage Electrical Testing (10/5/2026 - 10/9/2026)

Station 534

(segment 534 BH)

 

1,909

 

1,909

 

1,909

1770

(139)

 

1,909

 

1,909

Sta 538: Boost Pump Vibration Upgrade (10/12/2026 - 10/15/2026)

Station 860

(segment 548 BH)

 

1,593

1577

(16)

 

1,593

 

1,593

1181

(412)

 

1,593

Sta 542 Dekalb: Annual ESD Test (10/20/2026 - 10/22/2026) Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 9/30/2026)

Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 9/30/2026)

Station 860 North (Segment 860

BH)

 

1,874

 

1846

(28)

 

1846

(28)

 

1475

(399)

 

1475

(399)

 

1475

(399)

MLV 560-2 to MLV 563-2: Pipe Replacements (M) (10/15/2026 - 10/26/2026) Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2026)

 

 

 

 

 

 

 

Station 110

(segment 187 BH)

(south thru Kentucky)

 

 

 

 

 

 

 

 

 

2,685

 

 

 

 

 

 

 

 

 

2407

(278)

 

 

 

 

 

 

 

 

 

2043

(642)

 

 

 

 

 

 

 

 

 

1972

(713)

 

 

 

 

 

 

 

 

 

2428

(257)

 

 

 

 

 

 

 

 

 

1822

(863)

MLV 103-3 to MLV 105-3: Crossover Upgrade (10/10/2026 - 10/17/2026) MLV 104-3 to MLV 106-3S: HDD at Kentucky River (10/10/2026 - 10/17/2026) MLV 109-3A to MLV 110-3: Pipe Replacement (10/14/2026 - 10/30/2026) MLV 109-5 to MLV 109-5A: Pipe Replacement (9/14/2026 - 10/12/2026)

MLV 109-5A to MLV 110-5: Pipe Replacement (9/14/2026 - 10/12/2026) MLV 110-2 to MLV 114-2: CAO - Force Majeure (M) (7/14/2026 - 12/31/2026)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 867-2 to MLV 868-2: Anomaly Remediation (10/19/2026 - 10/24/2026) MLV 870-2 to MLV 870-2R: Anomaly Remediation (10/12/2026 - 10/17/2026) MLV 93-4 to MLV 94-4: Anomaly Remediation (M) (9/21/2026 - 9/28/2026) MLV 97-3 to MLV 106-3: Pig Run - Cleaning / Gauge (10/27/2026)

MLV 97-3 to MLV 106-3: Pig Run - MFL-S (10/29/2026)

Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 10/10/2026) Sta 871: Unit 1A - Bearing (9/12/2026 - 9/30/2026)

Sta 875: Unit 1A- 8K Solar Turbine Inspection (10/27/2026 - 10/29/2026) Sta 96: Unit 2D Replace Compressor Valves (10/12/2026 - 10/15/2026)

Station 114

(segment 114 BH)

 

907

 

907

853

(54)

 

907

 

907

 

907

Sta 118A Tyler Mountain: Annual ESD Test (10/5/2026 - 10/6/2026)


 

TGP - Outage Impact Report October 2026 (updated 09/17/26)

-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

(9/28 - 10/4)

Week 2

(10/5 - 10/11)

Week 3

(10/12 - 10/18)

Week 4

(10/19 - 10/25)

Week 5

(10/26 - 11/1)

 

Primary Outage(s)

 

Est. Operational Capacity (Operational Impact) - Thousand Dth

 

 

 

 

 

Station 204

(Segment 204 BH)

 

 

 

 

 

 

1,828

 

 

 

 

 

1415

(413)

 

 

 

 

 

1750

(78)

 

 

 

 

 

1745

(83)

 

 

 

 

 

1745

(83)

 

 

 

 

 

1690

(138)

MLV 209-2 to MLV 214-2: Pig Run - Chem Cleaning (10/26/2026)

MLV 209-2 to MLV 214-2: Pig Run - Chem Cleaning (10/27/2026) MLV 209-2 to MLV 214-2: Pig Run - Chem Cleaning (10/28/2026) MLV 209-2 to MLV 214-2: Pig Run - Chem Cleaning (10/29/2026) MLV 209-2 to MLV 214-2: Pig Run - Chem Cleaning (10/30/2026) MLV 214-1 to MLV 219-1: Pig Run - Cal/IMU (10/20/2026)

MLV 214-1 to MLV 219-1: Pig Run - Gauge/Cleaning (10/15/2026) MLV 214-1 to MLV 219-1: Pig Run - MFL-C (10/22/2026)

MLV 214-2 to MLV 215-2: PHMSA Immediate (9/16/2026 - 10/6/2026)

Sta 204: Scrubber Filter Change (10/1/2026 - 10/3/2026) Sta 209 Cambridge: Scrubber Filter (9/28/2026 - 9/30/2026)

Sta 209 Cambridge: Unit 11A - Eutectic Device (9/28/2026 - 9/30/2026)

Sta. 200: Unit 1B - Replace Turbochargers (10/4/2026 - 10/30/2026)

Station 233

(segment 233 FH)

 

459

355

(104)

 

459

 

459

 

459

 

459

MLV 233-2 to MLV 235-2: Pig Run (9/30/2026)

Station 245

(segment 245 FH)

 

986

 

970

(16)

 

970

(16)

 

970

(16)

 

970

(16)

 

760

(226)

Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026) Sta 245-1 to MLV 249-1: Pig Run - EMAT (10/28/2026)

Sta 245-1 to MLV 249-1: Pig Run - MFL-C - Rerun (10/27/2026)

MLV 256 West

(segment 249 FH)

 

1,203

642

(561)

 

1,203

 

1,203

 

1,203

 

1,203

Sta 249-2 to MLV 254-2: Pig Run - Hardspot Rerun (9/30/2026)

Station 261 Discharge East (segment 261

FH)

 

888

 

500

(388)

 

715

(173)

 

555

(333)

 

888

 

888

Sta 261 Agawam: Annual ESD test (M) (9/28/2026 - 10/2/2026)

Sta 264 Charlton: Unit 1C - Engine Maintenance (8/24/2026 - 10/16/2026) Sta 264: Oil System (10/12/2026 - 10/16/2026)

Station 307

(segment 307 BH)

 

1,153

 

1,153

 

1,153

765

(388)

765

(388)

765

(388)

MLV 302-2 to MLV 303-2: Anomaly Remediation (10/16/2026 - 10/27/2026) Sta 303A: Unit 1A - Water Wash (10/19/2026 - 10/22/2026)

Station 313 Discharge (segment 399

FH)

 

797

 

207

(590)

 

207

(590)

 

207

(590)

 

797

 

797

MLV 313A-403 to MLV 313A-404: Anomaly Remediation (9/29/2026 - 10/15/2026)

Station 315

(segment 315 BH)

 

1,823

 

1,823

 

1,823

 

1,823

 

1,823

 

1,823

 

MLV 324

(segment 324 FH)

 

1,767

1450

(317)

 

1,767

 

1,767

1550

(217)

 

1,767

MLV 325-1 to MLV 329-1: Pig runs - Cleaning/Gauge (M) (10/19/2026) MLV 325-1 to MLV 329-1: Pig runs - EMAT (M) (10/20/2026)

Sta 325: Station Outage (9/29/2026 - 10/1/2026)

Cranston Lateral South

(segment 281

FH)

 

187

 

187

 

187

 

125

(62)

 

187

 

187

Sta 265: Unit 1A - Replace Lube Oil Fan (10/12/2026)

Station 405 HC Line (segment 299

FH)

 

794

 

794

 

794

 

670

(124)

 

794

 

794

Sta 405A: Unit 1A - 4k Waterwash (10/13/2026) ; Sta 405A: Unit 1A - 8K Solar Turbine Inspection (10/14/2026)

Station 224

(segment 224 FH)

 

388

 

388

200

(188)

 

388

 

388

 

388

MLV 229-2 to MLV 232-2: Pig runs - Maintenance (M) (10/6/2026)

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

 

November 2026 (updated 09/17/26)

 

-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

(11/2 - 11/8)

Week 2

(11/9 - 11/15)

Week 3

(11/16 - 11/22)

Week 4

(11/23 - 11/29)

 

Primary Outage(s)

 

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409A (Alamo) (segment 492

FH)

 

297

 

260

(37)

 

260

(37)

 

297

 

297

MLV 409-1 to MLV 406-1: Spike Test (M) (9/20/2026 - 11/11/2026)

Station 409 (Donna Line) (segment 490

FH)

 

587

 

587

 

587

 

587

 

587

 

MLV 406

(segment 406 BH)

 

479

 

479

 

479

 

479

 

479

 

Station 1

(segment 101 BH)

 

438

 

438

399

(39)

226

(212)

 

438

MLV 400-1 to MLV 409-1: Pig Run - Maintenance Cleaning (M) (11/10/2026) MLV 400-2 to MLV 409-2: Pig Run - Maintenance Cleaning (M) (11/17/2026)

Station 9

(segment 109 BH)

 

1,066

985

(81)

880

(186)

 

1,066

 

1,066

MLV 1-1D to MLV 5-1: Spike Test (M) (9/21/2026 - 11/2/2026)

MLV 1-1D to MLV 9-1S: Pig Run - Maintenance / Cleaning (M) (11/10/2026)

Station 17

(segment 117 FH)

 

1,138

 

1,138

 

1,138

 

1,138

 

1,138

 

Station 25

(segment 125 FH)

 

1,095

 

1,095

 

1,095

 

1,095

 

1,095

 

Station 40 South

(segment 132 FH)

 

1,294

 

1,294

 

1,294

 

915

(379)

 

1,294

Sta 32: Annual ESD Test (11/17/2026 - 11/18/2026)

Station 47

(segment 143 FH)

 

1,428

1350

(78)

1350

(78)

 

1,428

 

1,428

MLV 61-3 to MLV 62-3: Pipe Replacements (11/2/2026 - 11/13/2026)

Station 63

(segment 163 FH)

 

1,192

871

(321)

1067

(125)

1067

(125)

1067

(125)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 71-3D to MLV 74-3: Pig Runs - Cleaning / Gauge (11/3/2026)

MLV 71-3D to MLV 74-3: Pig Runs - TDW MDS (11/5/2026)

Station 823

(segment 823 BH)

 

758

210

(548)

 

758

 

758

 

758

Sta 827 to Sta 823: Pig Run - Maintenance (M) (11/5/2026) Sta 834 to Sta 827: Maintenance Pig (M) (11/5/2026)

Station 860

(segment 548 BH)

 

1,665

1660

(5)

1450

(215)

 

1,665

 

1,665

Sta 550 Hamilton: Annual ESD Test (11/9/2026)

Sta 550: Unit 1B - Juction Box Rewire & Unit Valves (11/2/2026 - 11/13/2026)

 

Station 860 North (Segment 860 BH)

 

 

2,059

 

 

2031

(28)

 

 

2031

(28)

 

 

2031

(28)

 

 

2031

(28)

Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2026) Sta 860: Unit 1C - 4K/Turbine Waterwash/Boroscope (11/2/2026 - 11/3/2026) Sta 860: Unit 2C - 4K/Turbine Waterwash/Boroscope (11/3/2026 - 11/4/2026)

Station 110

(segment 187 BH)

(south thru

Kentucky)

 

 

2,594

 

1951

(643)

 

2327

(267)

 

2327

(267)

 

2327

(267)

MLV 110-2 to MLV 114-2: CAO - Force Majeure (M) (7/14/2026 - 12/31/2026)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 97-3 to MLV 106-3: Pig Run - EMAT (11/5/2026)

MLV 97-3 to MLV 106-3: Pig Run - MFL-C (11/3/2026)

Station 114

(segment 114 BH)

 

946

858

(88)

 

946

 

946

 

946

Sta 118A: Solar Turbine Inspection (11/2/2026 - 11/4/2026)

 

 

Station 204

(Segment 204 BH)

 

 

 

1,888

 

 

1765

(123)

 

 

1405

(483)

 

 

1425

(463)

 

 

 

1,888

MLV 204-4 to MLV 209-4: Pig Run - Cal/IMU (11/12/2026)

MLV 204-4 to MLV 209-4: Pig Run - Efficiency (11/11/2026) MLV 204-4 to MLV 209-4: Pig Run - EMAT (11/19/2026) MLV 204-4 to MLV 209-4: Pig Run - Gauge (11/10/2026) MLV 204-4 to MLV 209-4: Pig Run - MFL-C (11/17/2026) MLV 209-2 to MLV 214-2: Pig Run - CAL/IMU (11/3/2026) MLV 209-2 to MLV 214-2: Pig Run - EMAT (11/5/2026)

Station 245

(segment 245 FH)

 

1,043

 

1,043

 

1,043

 

1,043

 

1,043

 

Station 261 Discharge East (segment 261

FH)

 

1,034

 

1,034

 

1,034

 

1,034

 

1,034

 

Station 307

(segment 307 BH)

 

1,203

1020

(183)

 

1,203

 

1,203

 

1,203

Sta 219: Annual ESD Test & Scrubber Maintenance (11/3/2026 - 11/6/2026)


 

 

 

-Primary impact restrictions may be necessary

 

TGP - Outage Impact Report

 

-Major impact restrictions may be necessary

 

November 2026 (updated 09/17/26)

 

-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

(11/2 - 11/8)

Week 2

(11/9 - 11/15)

Week 3

(11/16 - 11/22)

Week 4

(11/23 - 11/29)

 

Primary Outage(s)

 

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 313 Discharge (segment 399

FH)

 

810

 

810

 

810

 

810

 

810

 

Station 315

(segment 315 BH)

 

1,885

 

1,885

 

1,885

 

1,885

 

1,885

 

Station 321

(segment 321 FH)

 

2,220

2035

(185)

 

2,220

 

2,220

 

2,220

MLV 319-1 to MLV 320-1: Hot Tap (11/5/2026)

MLV 324

(segment 324 FH)

 

1,883

 

1,883

 

1,883

 

1,883

 

1,883

 

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

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

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

 

 

 

 

 

-Primary impact restrictions may be necessary

 

 

TGP - Outage Impact Report

 

 

-Major impact restrictions may be necessary

 

December 2026 (updated 09/17/26)

 

-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

(11/30 - 12/6)

Week 2

(12/7 - 12/13)

Week 3

(12/14 - 12/20)

Week 4

(12/21 - 12/27)

Week 5

(12/28 - 1/3)

 

Primary Outage(s)

 

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490

FH)

 

587

 

587

 

587

 

587

 

587

 

587

 

Station 1

(segment 101 BH)

 

438

 

438

 

438

 

438

 

438

 

438

 

Station 9

(segment 109 BH)

 

1,066

 

1,066

 

1,066

 

1,066

 

1,066

 

1,066

 

Station 25

(segment 125 FH)

 

1,095

 

1,095

 

1,095

 

1,095

 

1,095

 

1,095

 

Carthage Lateral (segment 700 FH)

 

310

 

80

(230)

 

80

(230)

 

310

 

310

 

310

MLV 706-1 to MLV 700-1: Pig Run - Chemical Cleaning (M) (12/2/2026) MLV 706-1 to MLV 700-1: Pig Run - Chemical Cleaning (M) (12/3/2026) MLV 706-1 to MLV 700-1: Pig Run - Chemical Cleaning (M) (12/4/2026)

MLV 706-1 to MLV 700-1: Pig Run - MDS (M) (12/10/2026)

Station 47

(segment 143 FH)

 

1,428

 

1,428

 

1,428

 

1,428

 

1,428

 

1,428

 

Station 63

(segment 163 FH)

 

1,192

1067

(125)

1067

(125)

1067

(125)

1067

(125)

1067

(125)

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

Station 823

(segment 823 BH)

 

758

 

758

 

758

 

758

 

758

 

758

 

Station 860

(segment 548 BH)

 

1,665

 

1,665

 

1,665

 

1,665

 

1,665

 

1,665

 

Station 860 North (Segment 860

BH)

 

2,059

 

2031

(28)

 

2031

(28)

 

2031

(28)

 

2031

(28)

 

2031

(28)

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

Station 110

(segment 187 BH)

(south thru

Kentucky)

 

 

2,594

 

2327

(267)

 

2327

(267)

 

2327

(267)

 

2327

(267)

 

2327

(267)

MLV 110-2 to MLV 114-2: CAO - Force Majeure (M) (7/14/2026 - 12/31/2026)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) Sta 87: Unit 1E - Safety Device Testing (12/15/2026)

Sta 87: Unit 2E - Safety Device Tests (12/16/2026)

Station 114

(segment 114 BH)

 

946

 

946

 

946

835

(111)

 

946

 

946

Sta 114: Unit 1D - Solar Turbine Inspection (12/14/2026 - 12/16/2026)

Station 204

(Segment 204 BH)

 

1,888

 

1,888

 

1,888

 

1,888

 

1,888

 

1,888

 

Station 245

(segment 245 FH)

 

1,043

 

1,043

768

(275)

 

1,043

 

1,043

 

1,043

MLV 237-1 to MLV 245-1: Pig Run - Cleaning/Gauge (12/7/2026) MLV 237-1 to MLV 245-1: Pig Run - EMAT (12/9/2026)

Station 261 Discharge East (segment 261

FH)

 

1,034

 

1,034

 

1,034

 

1,034

 

1,034

 

1,034

 

Station 307

(segment 307 BH)

 

1,203

 

1,203

 

1,203

 

1,203

 

1,203

 

1,203

 

Station 313 Discharge (segment 399

FH)

 

810

 

810

 

810

 

810

 

810

 

810

 

Station 315

(segment 315 BH)

 

1,885

 

1,885

 

1,885

 

1,885

 

1,885

 

1,885

 

MLV 324

(segment 324 FH)

 

1,883

 

1,883

 

1,883

 

1,883

 

1,883

 

1,883

 

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.