Tennessee Gas Pipeline Notice 402992

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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: 07/23/2026 2:42:45PM Notice End Date/Time: 07/24/2026 9:00:00am Post Date/Time: 7/23/2026 2:42:45 PM Notice ID: 402992 Reqrd Rsp: 1 Rsp Date/Time: 7/23/2026 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 07/23/26)

-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

(7/27)

Tuesday

(7/28)

Wednesday

(7/29)

Thursday

(7/30)

Friday

(7/31)

Saturday

(8/1)

Sunday

(8/2)

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

890

(137)

885

(142)

885

(142)

885

(142)

885

(142)

885

(142)

885

(142)

MLV 11-1A to MLV 11-1: Anomaly Remediation (7/15/2026 - 7/27/2026) MLV 12-1 to MLV 11-1A: PHMSA Immediate (7/15/2026 - 7/27/2026)

MLV 13-1 to MLV 12-1: Anomaly Remediation (7/15/2026 - 7/27/2026) MLV 16-1 to MLV 15-1: PHMSA Immediate (7/28/2026 - 8/3/2026)

MLV 16-1R to MLV 16-1: PHMSA Immediate (7/28/2026 - 8/3/2026)

Station 17

(segment 117 FH)

1,122

1000

(122)

1000

(122)

1000

(122)

1000

(122)

1000

(122)

1000

(122)

1000

(122)

MLV 17-3DL to MLV 18-3A: Anomaly Remediation (7/27/2026 - 8/2/2026) MLV 19-3 TO MLV 20-3A: Pipe Replacement (M) (7/6/2026 - 8/3/2026) MLV 25-2 to MLV 26-2: Pipe Replacement (M) (7/15/2026 - 7/29/2026)

MLV 26-2 Relocation: Highway 59 Widening (M) (7/15/2026 - 7/29/2026)

Station 25

(segment 125 FH)

1,078

1,078

Station 47

(segment 143 FH)

1,343

1,343

Station 63

(segment 163 FH)

1,242

1117

(125)

1117

(125)

1117

(125)

1117

(125)

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

600

(83)

600

(83)

600

(83)

683

Sta 834: Station Outage (7/29/2026 - 7/31/2026)

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 - 9/4/2026) Sta 534: Unit 6A - Piston Liner & Unloader Replacements (6/30/2025 - 7/29/2026)

MLV 548

(segment 542 BH)

1,647

1,647

Sta 546: Unit 6A - Turbo Replacment (7/8/2026 - 8/14/2026)

Station 860

(segment 548 BH)

1,593

1540

(53)

1540

(53)

1540

(53)

1540

(53)

1540

(53)

1575

(18)

1581

(12)

MLV 539-2 to MLV 540-2: Anomaly Remediation (7/27/2026 - 7/31/2026) Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 9/30/2026)

Sta 542: Unit 3A - Emergent Repair (3/26/2026 - 8/31/2026) Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 7/31/2026)

Sta 555: Unit 4A - Engine Maintenance (7/27/2026 - 8/1/2026)

Sta 555: Unit 5A - Foundation Regrout (1/20/2026 - 7/31/2026)

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

2150

(535)

2150

(535)

2150

(535)

2150

(535)

2150

(535)

2150

(535)

2150

(535)

MLV 102-1 to MLV 103-1: Anomaly Remediation (7/26/2026 - 7/30/2026) MLV 107-7 to 110-7: Valve Installation & Crossover Work (7/7/2026 - 7/27/2026)

MLV 109-7 to MLV 110-7: Pipe Replacement (7/7/2026 - 8/3/2026) 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 96-3BR to MLV 96-3BL: Spike Test (7/27/2026 - 8/31/2026)

Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 9/30/2026) Sta 871: Unit 1A - Emergent Repair (7/10/2026 - 8/7/2026)

Station 114

(segment 114 BH)

907

703

(204)

907

703

(204)

907

703

(204)

907

MLV 110-2 to MLV 114-2S: Pig Run - AFD (7/29/2026)

MLV 110-2 to MLV 114-2S: Pig Run - Cleaning/Gauge (7/27/2026) MLV 110-2 to MLV 114-2S: Pig Run - EMAT (7/31/2026)

Station 204

(Segment 204 BH)

1,828

1,828

Station 237

(segment 237 FH)

1,006

780

(226)

1,006

780

(226)

1,006

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

830

(156)

830

(156)

830

(156)

830

(156)

830

(156)

830

(156)

970

(16)

Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026) MLV 253-1 to MLV 253-1R: Anomaly Remediation (7/27/2026 - 8/1/2026)

MLV 256 West

(segment 249 FH)

1,203

1,203

Station 261 Discharge East (segment 261

FH)

888

715

(173)

715

(173)

715

(173)

888

Sta 264 Charlton: Unit 1C - Borescope (7/28/2026) Sta 264 Charlton: Unit 2C - Borescope (7/29/2026) Sta 264 Charlton: Unit 2C - Water Wash (7/27/2026)

Station 307

(segment 307 BH)

1,153

1115

(38)

1115

(38)

1115

(38)

1115

(38)

1115

(38)

1,153

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

Sta 307: Unit 1A - Protective Device Checks (7/27/2026 - 7/31/2026) Sta 307: Unit 2A - Protective Device Checks (7/27/2026 - 7/31/2026) Sta 307: Unit 3A - Protective Device Checks (7/27/2026 - 7/31/2026) Sta 307: Unit 4A - Protective Device Checks (7/27/2026 - 7/31/2026)

Station 313 Discharge (segment 399

FH)

797

797

720

(77)

720

(77)

797

Sta 313: Unit 1C - Substation Inspection (7/30/2026 - 7/31/2026)

Station 315

(segment 315 BH)

1,823

1,823

MLV 324

(segment 324 FH)

1,767

1,767

1450

(317)

1450

(317)

1450

(317)

1,767

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

Station 405 HC Line (segment 299

FH)

794

794

									-Primary impact restrictions may be necessary
			TGP - Outage Impact Report						-Major impact restrictions may be necessary
		Seven Day Forecast (updated 07/23/26)							-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 (7/27)	Tuesday (7/28)	Wednesday (7/29)	Thursday (7/30)	Friday (7/31)	Saturday (8/1)	Sunday (8/2)	Primary Outage(s) that may Impact Throughput
Station / Seg		Est. Operational Capacity (Operational Impact) - Thousand Dth							Primary Outage(s) that may Impact Throughput
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 07/23/26)

-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

885

(142)

640

(387)

640

(387)

1,027

MLV 16-1 to MLV 15-1: PHMSA Immediate (7/28/2026 - 8/3/2026) MLV 16-1R to MLV 16-1: PHMSA Immediate (7/28/2026 - 8/3/2026)

MLV 5-2 to MLV 1-2D: Pig Run - Cleaning Gauge (M) (8/13/2026) MLV 5-2 to MLV 1-2D: Pig Run - Cleaning Gauge (M) (8/14/2026) MLV 5-2 to MLV 1-2D: Pig Run - Cleaning Gauge (M) (8/15/2026) MLV 5-2 to MLV 1-2D: Pig Run - Cleaning Gauge (M) (8/16/2026) MLV 5-2 to MLV 1-2D: Pig Run - Cleaning Gauge (M) (8/17/2026) MLV 5-2 to MLV 1-2D: Pig Run - Cleaning Gauge (M) (8/18/2026) MLV 5-2 to MLV 1-2D: Pig Run - Cleaning Gauge (M) (8/19/2026)

MLV 5-2 to MLV 1-2D: Pig Run - TDW MDS (M) (8/20/2026)

Station 17

(segment 117 FH)

1,122

969

(153)

969

(153)

969

(153)

1100

(22)

MLV 19-1 TO MLV 20-1A: Pipe Replacement (M) (8/6/2026 - 9/15/2026) MLV 19-3 TO MLV 20-3A: Pipe Replacement (M) (7/6/2026 - 8/3/2026)

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

Station 25

(segment 125 FH)

1,078

1,078

Station 47

(segment 143 FH)

1,343

1,343

1105

(238)

1,343

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

901

(341)

901

(341)

1117

(125)

1117

(125)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 77-3 to MLV 77-3A: Pipe Replacements (8/3/2026 - 8/13/2026)

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

985

(565)

985

(565)

985

(565)

985

(565)

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

MLV 548

(segment 542 BH)

1,647

1,647

Station 860

(segment 548 BH)

1,593

1581

(12)

1375

(218)

1375

(218)

1185

(408)

Sta 542 Dekalb: Annual ESD Test (8/25/2026 - 8/27/2026) Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 9/30/2026) Sta 542: Unit 3A - Emergent Repair (3/26/2026 - 8/31/2026) Sta 555: Unit 1B - Hot Gas Path (8/10/2026 - 9/18/2026)

Sta 546: Unit 6A - Turbo Replacment (7/8/2026 - 8/14/2026)

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

2150

(535)

2246

(439)

2246

(439)

1887

(798)

MLV 104-1 to MLV 105-1: Anomaly Remediation (8/6/2026 - 9/6/2026) MLV 109-4 to 110-4: Valve Installation & Crossover Work (8/4/2026 - 8/18/2026)

MLV 109-4 to MLV 110-4: Pipe Replacement (8/4/2026 - 8/25/2026) MLV 109-5 to MLV 109-5A: Pipe Replacement (8/26/2026 - 9/9/2026) MLV 109-5A to MLV 110-5: Pipe Replacement (8/26/2026 - 9/9/2026) MLV 109-7 to MLV 110-7: Pipe Replacement (7/7/2026 - 8/3/2026)

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 87-3 to MLV 96-3: Pig Run - Cleaning / Gauge (8/25/2026)

MLV 87-3 to MLV 96-3: Pig Run - EMAT (8/27/2026)

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

Sta 106: Unit 1D - 4K Solar Turbine Inspection (8/18/2026 - 8/20/2026) 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 871: Unit 1A - Emergent Repair (7/10/2026 - 8/7/2026)

Sta 871: Unit 3A - Engine Maintenance (8/24/2026 - 9/11/2026) 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 - 8/30/2026)

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

8/30/2026)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

August 2026 (updated 07/23/26)

-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 204

(Segment 204 BH)

1,828

1,828

1735

(93)

1,828

Sta 200 Greenup: B Building - Divider Blocks (8/11/2026 - 8/12/2026)

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

Station 307

(segment 307 BH)

1,153

965

(188)

1,153

765

(388)

965

(188)

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) Sta 307 (Pigeon): MLV Operators / Air Comp Install / Fuel Skid (8/24/2026 - 8/28/2026)

Station 313 Discharge (segment 399

FH)

797

797

515

(282)

797

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

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

1700

(67)

MLV 324-1 to MLV 324-1A: Anomaly Remediation (8/24/2026 - 8/29/2026)

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 07/23/26)

-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

215

(59)

125

(149)

215

(59)

215

(59)

MLV 409-1 to MLV 406-1: Spike Test (M) (9/1/2026 - 10/31/2026)

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 409 (Donna Line) (segment 490

FH)

564

564

Station 1

(segment 101 BH)

399

300

(99)

300

(99)

300

(99)

300

(99)

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

Station 9

(segment 109 BH)

1,027

1,027

Station 17

(segment 117 FH)

1,122

1100

(22)

1100

(22)

1100

(22)

1085

(37)

MLV 17-1D to MLV 20-1A: Pig Run - 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)

MLV 19-1 TO MLV 20-1A: Pipe Replacement (M) (8/6/2026 - 9/15/2026)

Station 25

(segment 125 FH)

1,078

1,078

Station 47

(segment 143 FH)

1,343

1045

(298)

1045

(298)

1300

(43)

1300

(43)

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)

MLV 58-2 to MLV 59-2: Anomaly Remediation (9/20/2026 - 10/1/2026)

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

985

(565)

1,550

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

Station 534

(segment 534 BH)

1,909

1,909

1440

(469)

1440

(469)

MLV 534-2 to MLV 535-2: Tallahala Creek HDD (9/14/2026 - 9/23/2026)

MLV 548

(segment 542 BH)

1,647

1,647

Station 860

(segment 548 BH)

1,593

1375

(218)

725

(868)

1390

(203)

1586

(7)

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

Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 9/30/2026) Sta 542: Unit 3A - Emergent Repair (3/26/2026 - 8/31/2026)

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

Sta 555: Scrubber/Filter/Separator Clean, Inspect & Filter Change (9/14/2026) Sta 555: Unit 1B - Hot Gas Path (8/10/2026 - 9/18/2026)

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 (9/14/2026 - 9/16/2026)

Sta 563: Unit 2A - Annual Inspection/CAV (9/16/2026 - 9/18/2026)

Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2026) Sta 860: Unit 1B - Replace Turbocharger (8/31/2026 - 9/4/2026)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

September 2026 (updated 07/23/26)

-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 110

(segment 187 BH)

(south thru Kentucky)

2,685

2112

(573)

2355

(330)

2408

(277)

2425

(260)

MLV 104-1 to MLV 105-1: Anomaly Remediation (8/6/2026 - 9/6/2026)

MLV 105-1 to MLV 105-1A: Anomaly Remediation (9/7/2026 - 9/12/2026) MLV 109-3A to MLV 110-3: Pipe Replacement (9/10/2026 - 9/24/2026) MLV 109-5 to MLV 109-5A: Pipe Replacement (8/26/2026 - 9/9/2026) MLV 109-5A to MLV 110-5: Pipe Replacement (8/26/2026 - 9/9/2026)

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

Sta 106: Unit 2D - 4K Solar Turbine Inspection (9/16/2026 - 9/18/2026) Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 9/30/2026)

Sta 871 Campbellsville: Annual ESD Test (9/1/2026)

Sta 871: Unit 3A - Engine Maintenance (8/24/2026 - 9/11/2026)

Station 114

(segment 114 BH)

907

907

812

(95)

907

Sta 119A: Unit 1A - Solar Turbine Inspection (9/14/2026 - 9/16/2026)

Station 204

(Segment 204 BH)

1,828

1,828

1760

(68)

1,828

1375

(453)

MLV 214-3 to MLV 219-3: Pig Run - Cal/IMU/MFL-A Combo (M) (9/10/2026)

MLV 214-3 to MLV 219-3: Pig Run - Gauge/Cleaning (M) (9/8/2026) Sta 204: Scrubber Filter Change (9/24/2026 - 9/26/2026)

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

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)

680

(306)

Sta 245: Bldg A & B - Remove Unit Valves (9/21/2026 - 9/25/2026)

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

Station 261 Discharge East (segment 261

FH)

888

888

555

(333)

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

Station 307

(segment 307 BH)

1,153

1,153

Station 313 Discharge (segment 399 FH)

797

797

220

(577)

220

(577)

797

MLV 313A-101A to MLV 313A-401: Anomaly Remediation (M) (9/7/2026 - 9/19/2026)

MLV 313A-101L to MLV 313A-101A: Anomaly Remediation (M) (9/7/2026 - 9/19/2026)

MLV 313A-403 to MLV 313A-404: Anomaly Remediation (M) (9/7/2026 - 9/19/2026)

MLV 313A-405A to MLV 313A-406: Anomaly Remediation (M) (9/7/2026 -

9/19/2026)

Station 315

(segment 315 BH)

1,823

1,823

MLV 324

(segment 324 FH)

1,767

1515

(252)

1,767

1495

(272)

MLV 321-1L to MLV 322-1: Anomaly Remediation (8/31/2026 - 9/5/2026) Sta 323: Station Outage (9/21/2026 - 9/24/2026)

MLV 329

(segment 324 FH)

846

846

830

(16)

830

(16)

830

(16)

MLV 329AS-1 to MLV 329AD-1: Valve Replacement - MLV 329-1 (M) (9/9/2026 - 10/9/2026)

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

October 2026 (updated 07/23/26)

-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) (9/1/2026 - 10/31/2026)

Station 409 (Donna Line) (segment 490

FH)

564

564

Station 1

(segment 101 BH)

399

300

(99)

300

(99)

300

(99)

300

(99)

300

(99)

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

Station 9

(segment 109 BH)

1,027

1,027

640

(387)

1,027

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

1014

(108)

1100

(22)

1,122

MLV 17-2D to MLV 20-2A: Pig Run - 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)

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

Station 25

(segment 125 FH)

1,078

1,078

Station 47

(segment 143 FH)

1,343

1025

(318)

1025

(318)

1295

(48)

1,343

MLV 58-2 to MLV 59-2: Anomaly Remediation (9/20/2026 - 10/1/2026) 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)

1117

(125)

1117

(125)

1117

(125)

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

Station 823

(segment 823 BH)

734

734

Station 534 South of Pool (segment 530

BH)

1,550

1,550

1175

(375)

1,550

Sta 529: Unit 1A - Solar Inspection (10/5/2026 - 10/8/2026)

MLV 548

(segment 542 BH)

1,647

1,647

Station 860

(segment 548 BH)

1,593

1586

(7)

1375

(218)

1,593

Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 9/30/2026) Sta 550 Hamilton: Annual ESD Test (10/5/2026 - 10/9/2026)

Sta 550: Unit 1B - Juction Box Rewire & Unit Valves (9/28/2026 - 10/9/2026)

Station 860 North (Segment 860 BH)

1,874

1846

(28)

1846

(28)

1846

(28)

1475

(399)

1475

(399)

MLV 560-2 to MLV 563-2: Pipe Replacements (M) (10/19/2026 - 10/26/2026) Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2026) Sta 860: Unit 1C - 4K/Turbine Waterwash/Boroscope (10/6/2026 - 10/7/2026) Sta 860: Unit 2C - 4K/Turbine Waterwash/Boroscope (10/7/2026 - 10/8/2026)

Station 110

(segment 187 BH)

(south thru Kentucky)

2,685

1965

(720)

1965

(720)

2447

(238)

1932

(753)

2067

(618)

MLV 104-3 to MLV 106-3S: HDD at Kentucky River (10/1/2026 - 10/5/2026) 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 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 Portland: Annual ESD Test (10/21/2026 - 10/22/2026)

Sta 87: Unit 1E - Scrubber/Filter/Separator Clean, Inspect & Filter Change (10/20/2026 - 10/21/2026)

Sta 87: Unit 2E - Scrubber/Filter/Separator Clean, Inspect & Filter Change (10/22/2026 - 10/23/2026)

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

Sta 96: Unit 2D Replace Compressor Valves (10/12/2026 - 10/15/2026)

Station 114

(segment 114 BH)

907

907

853

(54)

907

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

Station 204

(Segment 204 BH)

1,828

1,828

1755

(73)

1755

(73)

1710

(118)

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)

Station 233

(segment 233 FH)

459

459

355

(104)

459

MLV 233-2 to MLV 235-2: Pig Run (10/6/2026)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

October 2026 (updated 07/23/26)

-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 245

(segment 245 FH)

986

970

(16)

970

(16)

970

(16)

970

(16)

470

(516)

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 (10/27/2026)

Station 261 Discharge East (segment 261

FH)

888

495

(393)

888

555

(333)

888

Sta 261 Agawam: Annual ESD test (M) (9/28/2026 - 10/2/2026) Sta 264: Oil System (10/12/2026 - 10/16/2026)

Station 307

(segment 307 BH)

1,153

775

(378)

695

(458)

1,153

MLV 302-2 to MLV 303-2: Anomaly Remediation (9/28/2026 - 10/10/2026) Sta 303A: Unit 1A - Water Wash (10/6/2026 - 10/7/2026)

Sta 307: Unit 4A - Trabon (9/29/2026 - 10/2/2026)

Station 315

(segment 315 BH)

1,823

1,823

MLV 324

(segment 324 FH)

1,767

1,767

MLV 329

(segment 324 FH)

846

830

(16)

830

(16)

846

630

(216)

846

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)

MLV 329AS-1 to MLV 329AD-1: Valve Replacement - MLV 329-1 (M) (9/9/2026 -

10/9/2026)

Station 405 HC Line (segment 299

FH)

794

794

670

(124)

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

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.

Notice Text:

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

Seven Day Forecast (updated 07/23/26)

-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

(7/27)

Tuesday

(7/28)

Wednesday

(7/29)

Thursday

(7/30)

Friday

(7/31)

Saturday

(8/1)

Sunday

(8/2)

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

890

(137)

885

(142)

885

(142)

885

(142)

885

(142)

885

(142)

885

(142)

MLV 11-1A to MLV 11-1: Anomaly Remediation (7/15/2026 - 7/27/2026) MLV 12-1 to MLV 11-1A: PHMSA Immediate (7/15/2026 - 7/27/2026)

MLV 13-1 to MLV 12-1: Anomaly Remediation (7/15/2026 - 7/27/2026) MLV 16-1 to MLV 15-1: PHMSA Immediate (7/28/2026 - 8/3/2026)

MLV 16-1R to MLV 16-1: PHMSA Immediate (7/28/2026 - 8/3/2026)

Station 17

(segment 117 FH)

1,122

1000

(122)

1000

(122)

1000

(122)

1000

(122)

1000

(122)

1000

(122)

1000

(122)

MLV 26-2 Relocation: Highway 59 Widening (M) (7/15/2026 - 7/29/2026)

Station 25

(segment 125 FH)

1,078

1,078

Station 47

(segment 143 FH)

1,343

1,343

Station 63

(segment 163 FH)

1,242

1117

(125)

1117

(125)

1117

(125)

1117

(125)

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

600

(83)

600

(83)

600

(83)

683

Sta 834: Station Outage (7/29/2026 - 7/31/2026)

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 - 9/4/2026) Sta 534: Unit 6A - Piston Liner & Unloader Replacements (6/30/2025 - 7/29/2026)

MLV 548

(segment 542 BH)

1,647

1,647

Sta 546: Unit 6A - Turbo Replacment (7/8/2026 - 8/14/2026)

Station 860

(segment 548 BH)

1,593

1540

(53)

1540

(53)

1540

(53)

1540

(53)

1540

(53)

1575

(18)

1581

(12)

MLV 539-2 to MLV 540-2: Anomaly Remediation (7/27/2026 - 7/31/2026) Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 9/30/2026)

Sta 542: Unit 3A - Emergent Repair (3/26/2026 - 8/31/2026) Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 7/31/2026)

Sta 555: Unit 4A - Engine Maintenance (7/27/2026 - 8/1/2026)

Sta 555: Unit 5A - Foundation Regrout (1/20/2026 - 7/31/2026)

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

2150

(535)

2150

(535)

2150

(535)

2150

(535)

2150

(535)

2150

(535)

2150

(535)

MLV 102-1 to MLV 103-1: Anomaly Remediation (7/26/2026 - 7/30/2026) MLV 107-7 to 110-7: Valve Installation & Crossover Work (7/7/2026 - 7/27/2026)

MLV 109-7 to MLV 110-7: Pipe Replacement (7/7/2026 - 8/3/2026) 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 96-3BR to MLV 96-3BL: Spike Test (7/27/2026 - 8/31/2026)

Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 9/30/2026) Sta 871: Unit 1A - Emergent Repair (7/10/2026 - 8/7/2026)

Station 114

(segment 114 BH)

907

703

(204)

907

703

(204)

907

703

(204)

907

MLV 110-2 to MLV 114-2S: Pig Run - AFD (7/29/2026)

MLV 110-2 to MLV 114-2S: Pig Run - Cleaning/Gauge (7/27/2026) MLV 110-2 to MLV 114-2S: Pig Run - EMAT (7/31/2026)

Station 204

(Segment 204 BH)

1,828

1,828

Station 237

(segment 237 FH)

1,006

780

(226)

1,006

780

(226)

1,006

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

830

(156)

830

(156)

830

(156)

830

(156)

830

(156)

830

(156)

970

(16)

Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026) MLV 253-1 to MLV 253-1R: Anomaly Remediation (7/27/2026 - 8/1/2026)

MLV 256 West

(segment 249 FH)

1,203

1,203

Station 261 Discharge East (segment 261

FH)

888

715

(173)

715

(173)

715

(173)

888

Sta 264 Charlton: Unit 1C - Borescope (7/28/2026) Sta 264 Charlton: Unit 2C - Borescope (7/29/2026) Sta 264 Charlton: Unit 2C - Water Wash (7/27/2026)

Station 307

(segment 307 BH)

1,153

1115

(38)

1115

(38)

1115

(38)

1115

(38)

1115

(38)

1,153

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

Station 313 Discharge (segment 399

FH)

797

797

720

(77)

720

(77)

797

Sta 313: Unit 1C - Substation Inspection (7/30/2026 - 7/31/2026)

Station 315

(segment 315 BH)

1,823

1,823

MLV 324

(segment 324 FH)

1,767

1,767

1450

(317)

1450

(317)

1450

(317)

1,767

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

Station 405 HC Line (segment 299

FH)

794

794

									-Primary impact restrictions may be necessary
			TGP - Outage Impact Report						-Major impact restrictions may be necessary
		Seven Day Forecast (updated 07/23/26)							-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 (7/27)	Tuesday (7/28)	Wednesday (7/29)	Thursday (7/30)	Friday (7/31)	Saturday (8/1)	Sunday (8/2)	Primary Outage(s) that may Impact Throughput
Station / Seg		Est. Operational Capacity (Operational Impact) - Thousand Dth							Primary Outage(s) that may Impact Throughput
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 07/23/26)

-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

885

(142)

640

(387)

640

(387)

1,027

MLV 16-1 to MLV 15-1: PHMSA Immediate (7/28/2026 - 8/3/2026) MLV 16-1R to MLV 16-1: PHMSA Immediate (7/28/2026 - 8/3/2026)

MLV 5-2 to MLV 1-2D: Pig Run - TDW MDS (M) (8/20/2026)

Station 17

(segment 117 FH)

1,122

969

(153)

969

(153)

969

(153)

1100

(22)

MLV 19-1 TO MLV 20-1A: Pipe Replacement (M) (8/6/2026 - 9/15/2026) MLV 19-3 TO MLV 20-3A: Pipe Replacement (M) (7/6/2026 - 8/3/2026)

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

Station 25

(segment 125 FH)

1,078

1,078

Station 47

(segment 143 FH)

1,343

1,343

1105

(238)

1,343

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

901

(341)

901

(341)

1117

(125)

1117

(125)

MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 77-3 to MLV 77-3A: Pipe Replacements (8/3/2026 - 8/13/2026)

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

985

(565)

985

(565)

985

(565)

985

(565)

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

MLV 548

(segment 542 BH)

1,647

1,647

Station 860

(segment 548 BH)

1,593

1581

(12)

1375

(218)

1375

(218)

1185

(408)

Sta 546: Unit 6A - Turbo Replacment (7/8/2026 - 8/14/2026)

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

2150

(535)

2246

(439)

2246

(439)

1887

(798)

MLV 104-1 to MLV 105-1: Anomaly Remediation (8/6/2026 - 9/6/2026) MLV 109-4 to 110-4: Valve Installation & Crossover Work (8/4/2026 - 8/18/2026)

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 87-3 to MLV 96-3: Pig Run - Cleaning / Gauge (8/25/2026)

MLV 87-3 to MLV 96-3: Pig Run - EMAT (8/27/2026)

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

Sta 106: Unit 1D - 4K Solar Turbine Inspection (8/18/2026 - 8/20/2026) 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 871: Unit 1A - Emergent Repair (7/10/2026 - 8/7/2026)

Sta 871: Unit 3A - Engine Maintenance (8/24/2026 - 9/11/2026) 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 - 8/30/2026)

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

8/30/2026)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

August 2026 (updated 07/23/26)

-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 204

(Segment 204 BH)

1,828

1,828

1735

(93)

1,828

Sta 200 Greenup: B Building - Divider Blocks (8/11/2026 - 8/12/2026)

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

Station 307

(segment 307 BH)

1,153

965

(188)

1,153

765

(388)

965

(188)

Station 313 Discharge (segment 399

FH)

797

797

515

(282)

797

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

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

1700

(67)

MLV 324-1 to MLV 324-1A: Anomaly Remediation (8/24/2026 - 8/29/2026)

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 07/23/26)

-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

215

(59)

125

(149)

215

(59)

215

(59)

MLV 409-1 to MLV 406-1: Spike Test (M) (9/1/2026 - 10/31/2026)

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

Station 409 (Donna Line) (segment 490

FH)

564

564

Station 1

(segment 101 BH)

399

300

(99)

300

(99)

300

(99)

300

(99)

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

Station 9

(segment 109 BH)

1,027

1,027

Station 17

(segment 117 FH)

1,122

1100

(22)

1100

(22)

1100

(22)

1085

(37)

MLV 17-1D to MLV 20-1A: Pig Run - 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)

MLV 19-1 TO MLV 20-1A: Pipe Replacement (M) (8/6/2026 - 9/15/2026)

Station 25

(segment 125 FH)

1,078

1,078

Station 47

(segment 143 FH)

1,343

1045

(298)

1045

(298)

1300

(43)

1300

(43)

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)

MLV 58-2 to MLV 59-2: Anomaly Remediation (9/20/2026 - 10/1/2026)

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

985

(565)

1,550

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

Station 534

(segment 534 BH)

1,909

1,909

1440

(469)

1440

(469)

MLV 534-2 to MLV 535-2: Tallahala Creek HDD (9/14/2026 - 9/23/2026)

MLV 548

(segment 542 BH)

1,647

1,647

Station 860

(segment 548 BH)

1,593

1375

(218)

725

(868)

1390

(203)

1586

(7)

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

Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 9/30/2026) Sta 542: Unit 3A - Emergent Repair (3/26/2026 - 8/31/2026)

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

Sta 555: Scrubber/Filter/Separator Clean, Inspect & Filter Change (9/14/2026) Sta 555: Unit 1B - Hot Gas Path (8/10/2026 - 9/18/2026)

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 (9/14/2026 - 9/16/2026)

Sta 563: Unit 2A - Annual Inspection/CAV (9/16/2026 - 9/18/2026)

Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2026) Sta 860: Unit 1B - Replace Turbocharger (8/31/2026 - 9/4/2026)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

September 2026 (updated 07/23/26)

-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 110

(segment 187 BH)

(south thru Kentucky)

2,685

2112

(573)

2355

(330)

2408

(277)

2425

(260)

MLV 104-1 to MLV 105-1: Anomaly Remediation (8/6/2026 - 9/6/2026)

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

Sta 106: Unit 2D - 4K Solar Turbine Inspection (9/16/2026 - 9/18/2026) Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 9/30/2026)

Sta 871 Campbellsville: Annual ESD Test (9/1/2026)

Sta 871: Unit 3A - Engine Maintenance (8/24/2026 - 9/11/2026)

Station 114

(segment 114 BH)

907

907

812

(95)

907

Sta 119A: Unit 1A - Solar Turbine Inspection (9/14/2026 - 9/16/2026)

Station 204

(Segment 204 BH)

1,828

1,828

1760

(68)

1,828

1375

(453)

MLV 214-3 to MLV 219-3: Pig Run - Cal/IMU/MFL-A Combo (M) (9/10/2026)

MLV 214-3 to MLV 219-3: Pig Run - Gauge/Cleaning (M) (9/8/2026) Sta 204: Scrubber Filter Change (9/24/2026 - 9/26/2026)

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

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)

680

(306)

Sta 245: Bldg A & B - Remove Unit Valves (9/21/2026 - 9/25/2026)

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

Station 261 Discharge East (segment 261

FH)

888

888

555

(333)

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

Station 307

(segment 307 BH)

1,153

1,153

Station 313 Discharge (segment 399 FH)

797

797

220

(577)

220

(577)

797

MLV 313A-101A to MLV 313A-401: Anomaly Remediation (M) (9/7/2026 - 9/19/2026)

MLV 313A-101L to MLV 313A-101A: Anomaly Remediation (M) (9/7/2026 - 9/19/2026)

MLV 313A-403 to MLV 313A-404: Anomaly Remediation (M) (9/7/2026 - 9/19/2026)

MLV 313A-405A to MLV 313A-406: Anomaly Remediation (M) (9/7/2026 -

9/19/2026)

Station 315

(segment 315 BH)

1,823

1,823

MLV 324

(segment 324 FH)

1,767

1515

(252)

1,767

1495

(272)

MLV 321-1L to MLV 322-1: Anomaly Remediation (8/31/2026 - 9/5/2026) Sta 323: Station Outage (9/21/2026 - 9/24/2026)

MLV 329

(segment 324 FH)

846

846

830

(16)

830

(16)

830

(16)

MLV 329AS-1 to MLV 329AD-1: Valve Replacement - MLV 329-1 (M) (9/9/2026 - 10/9/2026)

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

October 2026 (updated 07/23/26)

-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) (9/1/2026 - 10/31/2026)

Station 409 (Donna Line) (segment 490

FH)

564

564

Station 1

(segment 101 BH)

399

300

(99)

300

(99)

300

(99)

300

(99)

300

(99)

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

Station 9

(segment 109 BH)

1,027

1,027

640

(387)

1,027

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

1014

(108)

1100

(22)

1,122

MLV 17-2D to MLV 20-2A: Pig Run - 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)

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

Station 25

(segment 125 FH)

1,078

1,078

Station 47

(segment 143 FH)

1,343

1025

(318)

1025

(318)

1295

(48)

1,343

MLV 58-2 to MLV 59-2: Anomaly Remediation (9/20/2026 - 10/1/2026) 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)

1117

(125)

1117

(125)

1117

(125)

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

Station 823

(segment 823 BH)

734

734

Station 534 South of Pool (segment 530

BH)

1,550

1,550

1175

(375)

1,550

Sta 529: Unit 1A - Solar Inspection (10/5/2026 - 10/8/2026)

MLV 548

(segment 542 BH)

1,647

1,647

Station 860

(segment 548 BH)

1,593

1586

(7)

1375

(218)

1,593

Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 9/30/2026) Sta 550 Hamilton: Annual ESD Test (10/5/2026 - 10/9/2026)

Sta 550: Unit 1B - Juction Box Rewire & Unit Valves (9/28/2026 - 10/9/2026)

Station 860 North (Segment 860 BH)

1,874

1846

(28)

1846

(28)

1846

(28)

1475

(399)

1475

(399)

Station 110

(segment 187 BH)

(south thru Kentucky)

2,685

1965

(720)

1965

(720)

2447

(238)

1932

(753)

2067

(618)

MLV 104-3 to MLV 106-3S: HDD at Kentucky River (10/1/2026 - 10/5/2026) 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 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 Portland: Annual ESD Test (10/21/2026 - 10/22/2026)

Sta 87: Unit 1E - Scrubber/Filter/Separator Clean, Inspect & Filter Change (10/20/2026 - 10/21/2026)

Sta 87: Unit 2E - Scrubber/Filter/Separator Clean, Inspect & Filter Change (10/22/2026 - 10/23/2026)

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

Sta 96: Unit 2D Replace Compressor Valves (10/12/2026 - 10/15/2026)

Station 114

(segment 114 BH)

907

907

853

(54)

907

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

Station 204

(Segment 204 BH)

1,828

1,828

1755

(73)

1755

(73)

1710

(118)

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)

Station 233

(segment 233 FH)

459

459

355

(104)

459

MLV 233-2 to MLV 235-2: Pig Run (10/6/2026)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

October 2026 (updated 07/23/26)

-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 245

(segment 245 FH)

986

970

(16)

970

(16)

970

(16)

970

(16)

470

(516)

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 (10/27/2026)

Station 261 Discharge East (segment 261

FH)

888

495

(393)

888

555

(333)

888

Sta 261 Agawam: Annual ESD test (M) (9/28/2026 - 10/2/2026) Sta 264: Oil System (10/12/2026 - 10/16/2026)

Station 307

(segment 307 BH)

1,153

775

(378)

695

(458)

1,153

MLV 302-2 to MLV 303-2: Anomaly Remediation (9/28/2026 - 10/10/2026) Sta 303A: Unit 1A - Water Wash (10/6/2026 - 10/7/2026)

Sta 307: Unit 4A - Trabon (9/29/2026 - 10/2/2026)

Station 315

(segment 315 BH)

1,823

1,823

MLV 324

(segment 324 FH)

1,767

1,767

MLV 329

(segment 324 FH)

846

830

(16)

830

(16)

846

630

(216)

846

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)

MLV 329AS-1 to MLV 329AD-1: Valve Replacement - MLV 329-1 (M) (9/9/2026 -

10/9/2026)

Station 405 HC Line (segment 299

FH)

794

794

670

(124)

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

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

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

Tennessee Gas Pipeline Notice 402992

Error

Error