Informational Postings :: Tennessee Gas Pipeline Company, L.L.C.

Informational Postings

Notice Detail

TSP/TSP Name: 1939164-TENNESSEE GAS PIPELINE	Critical: Y
Notice Type Desc (1): MAINTENANCE	Notice Type Desc (2): MAINTENANCE
Notice Eff Date/Time: 04/10/2025 3:14:57PM	Notice End Date/Time: 04/11/2025 9:00:00am
Post Date/Time: 4/10/2025 3:14:57 PM	Notice ID: 394278
Reqrd Rsp: 1	Rsp Date: 04/10/2025
Notice Stat Desc: INITIATE	Prior Notice:
Subject: TGP Outage Impact Report

Notice Text:

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

Seven Day Forecast (updated 04/10/25)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station / Seg

Est Nominal

Operating Capacity (Thousand Dth)

Monday

(4/14)

Tuesday

(4/15)

Wednesday

(4/16)

Thursday

(4/17)

Friday

(4/18)

Saturday

(4/19)

Sunday

(4/20)

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)

400

400

Station 9

(segment 109 FH)

980

980

840

(140)

840

(140)

840

(140)

MLV 1-1BL to MLV 3-1: Anomaly Remediation (4/18/2025 - 5/28/2025)

Station 17

(segment 117 FH)

758

753

(5)

753

(5)

753

(5)

753

(5)

753

(5)

753

(5)

753

(5)

MLV 17-3 to MLV 18-3: Emergent Repair (1/22/2025 - TBD)

Station 25

(segment 125 FH)

714

609

(105)

609

(105)

609

(105)

609

(105)

609

(105)

609

(105)

609

(105)

MLV 25-3D to MLV 27-3: Anomaly Remediation (M) (4/10/2025 - 5/3/2025)

Station 40 South

(segment 132 FH)

912

777

(135)

777

(135)

777

(135)

777

(135)

777

(135)

777

(135)

777

(135)

MLV 37-2 to MLV 38-2: Anomaly Remediation (4/14/2025 - 5/16/2025) MLV 39-2 to MLV 40-2: Anomaly Remediation (4/14/2025 - 4/18/2025) Sta 32: Unit 3B - Compressor Overhaul (4/14/2025 - 4/30/2025)

Station 47

(segment 143 FH)

1,184

1079

(105)

1109

(75)

1079

(105)

1049

(135)

1119

(65)

1119

(65)

1119

(65)

MLV 40-3 to MLV 47-3: Pig Run - AFD 4/16/25 (M) (4/16/2025) MLV 40-3 to MLV 47-3: Pig Run - MFL-C 4/14/25 (M) (4/14/2025)

MLV 47-1AT to MLV 49-1: Anomaly Remediation (1/6/2025 - 10/31/2025) MLV 49-1 to MLV 50-1: Anomaly Remediation (3/4/2025 - 10/31/2025) MLV 58-4 to MLV 59-4: Shallow Pipe Lowering (4/7/2025 - 4/17/2025) MLV 59-4 to MLV 60-4: Shallow Pipe Lowering (4/17/2025 - 5/1/2025) Sta 47: Unit 1E - Annual Turbine Maintenance (4/14/2025 - 4/18/2025) Sta 63: Unit 1D - Overhaul & Geislinger Coupling Inspection (4/7/2025 -

6/6/2025)

Station 63

(segment 163 FH)

1,233

845

(388)

1,233

845

(388)

1,233

MLV 71-3S to MLV 63-3D: Pig Runs - Caliper / IMU 4/1625 (4/16/2025) MLV 71-3S to MLV 63-3D: Pig Runs - Cleaning / Gauge 4/14/25 (4/14/2025)

Station 823

(segment 823 BH)

686

686

Station 834

(segment 834 BH)

679

670

(9)

670

(9)

670

(9)

670

(9)

670

(9)

670

(9)

670

(9)

Sta 834: Unit 5A - Cracked Main Bearing (3/17/2025 - 4/18/2025) Sta 834: Unit 6A - Overhaul (3/3/2025 - 11/3/2025)

Station 534

(segment 534 BH)

1,859

1840

(19)

1840

(19)

1840

(19)

1840

(19)

1840

(19)

1,859

Sta 538: Unit 1A - Flywheel Bearings (4/3/2025 - 4/18/2025)

Sta 538: Unit 6A - Head Gasket & Compressor Packing (4/3/2025 - 4/18/2025) Sta 534: Unit 6A - Piston Liner Replacement (3/25/2025 - 5/2/2025)

MLV 548

(segment 542 BH)

1,597

1340

(257)

1340

(257)

1340

(257)

1340

(257)

1340

(257)

1480

(117)

1480

(117)

MLV 534-1 to MLV 535-1: Anomaly Remediation (4/14/2025 - 4/18/2025) MLV 546-1 to MLV 542-1: Pig Runs - Maintenance (4/16/2025) MLV 546-2 to MLV 542-2: Pig Runs - Maintenance (4/17/2025) MLV 546-3 to MLV 544-3: Pig Runs - Maintenance (4/15/2025)

Sta 542: Unit 3A - Overhaul (2/12/2024 - 6/20/2025)

Station 860

(segment 548 BH)

1,516

1495

(21)

1495

(21)

1495

(21)

1495

(21)

1495

(21)

1,516

Sta 555: Unit 4A - Compressor Overhaul (1/25/2025 - 4/18/2025)

Station 860 North (Segment 860 BH)

1,793

1693

(100)

1693

(100)

1693

(100)

1693

(100)

1693

(100)

1693

(100)

1693

(100)

Sta 860: Force Majeure (8/18/2023 - TBD)

Sta 860: Unit 1A - After Cooler/jacket Water leaking into crankcase (6/17/2024 - 6/28/2025)

Station 110

(segment 187 BH)

(south thru Kentucky)

2,645

2580

(65)

2580

(65)

2580

(65)

2580

(65)

2580

(65)

2580

(65)

2580

(65)

MLV 106-4 to MLV 108-4: PHMSA Immediate Anomaly Remediation (3/26/2025 - 4/25/2025)

Sta 106: Unit 11B - Exhaust Manifold & Jacket Water System (4/14/2025 - 4/25/2025)

Sta 106: Unit 2B- RV Failure (3/26/2025 - 5/15/2025)

Sta 87: Unit 1D Maintenance (4/14/2025 - 4/17/2025)

Station 114

(segment 114 BH)

920

800

(120)

800

(120)

800

(120)

800

(120)

920

Sta 114: Unit 1D - 4K Solar Turbine Inspection (4/14/2025 - 4/17/2025)

Station 204

(Segment 204 BH)

1,827

1750

(77)

1750

(77)

1750

(77)

1750

(77)

1750

(77)

1777

(50)

1777

(50)

MLV 206-3 to MLV 208-3: Immediate Anomaly Remediation (4/9/2025 - 4/25/2025)

Sta 209: Unit 9A - Punch Carbon (4/14/2025 - 4/18/2025)

Station 219 to

Station 224

(Segment 219 FH)

540

530

(10)

530

(10)

530

(10)

530

(10)

530

(10)

540

Sta 219: Unit 7A - Unit Valve Replacement (4/14/2025 - 4/18/2025)

Station 245

(segment 245 FH)

997

997

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

Seven Day Forecast (updated 04/10/25)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station / Seg

Est Nominal

Operating Capacity (Thousand Dth)

Monday

(4/14)

Tuesday

(4/15)

Wednesday

(4/16)

Thursday

(4/17)

Friday

(4/18)

Saturday

(4/19)

Sunday

(4/20)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

N Hampton Lat (segment 280 FH)

(15)

Sta 260A: Unit 1A - Gear Box Maintenance Activity (4/14/2025 - 4/16/2025)

Station 261 Discharge East (segment 261 FH)

941

941

Fitchburg Lat to Gloucester (segment 268 FH)

202

140

(62)

140

(62)

202

MLV 267-1R to MLV 268-1: Anomaly Remediation (4/10/2025 - 4/15/2025)

Station 307

(segment 307 BH)

1,150

1,150

Station 315

(segment 315 BH)

1,854

1,854

Station 321

(segment 321 FH)

2,102

1855

(247)

1855

(247)

1855

(247)

2052

(50)

2052

(50)

2052

(50)

2052

(50)

Sta 321: Unit 5B - Emergent Repair (2/20/2025 - TBD)

Sta 323: Electric Company Maintenance (4/14/2025 - 4/16/2025)

MLV 324

(segment 324 FH)

1,767

1,767

Station 261

South 300 Line

(segment 355 BH)

(47)

MLV 350-1 to MLV 351-1: Anomaly Remediation (4/10/2025 - 4/17/2025)

Station 405 HC Line (segment 299 FH)

803

803

330

(473)

803

Sta 313 to Sta 237: Pig Run - Maintenance / Cleaning (M) (4/16/2025)

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
	April 2025 (updated 04/10/25)					-Minor impact restrictions may be necessary depending on flow conditions
						-Little to no impact, though minor outages may cause incremental reductions
Station # / Lateral	Est Nominal Operating Capacity (Thousand Dth)	Week 1 (3/31 - 4/6)	Week 2 (4/7 - 4/13)	Week 3 (4/14 - 4/20)	Week 4 (4/21 - 4/27)	Primary Outage(s)
Station # / Lateral	Est Nominal Operating Capacity (Thousand Dth)	Est. Operational Capacity (Operational Impact) - Thousand Dth				Primary Outage(s)
Station 409 (Donna Line) (segment 490 FH)	564				564
Station 1 (segment 101 BH)	400				400
Station 9 (segment 109 FH)	980				840 (140)	MLV 1-1BL to MLV 3-1: Anomaly Remediation (4/18/2025 - 5/28/2025)
Station 17 (segment 117 FH)	758				753 (5)	MLV 17-3 to MLV 18-3: Emergent Repair (1/22/2025 - TBD)
Station 25 (segment 125 FH)	714				609 (105)	MLV 25-3D to MLV 27-3: Anomaly Remediation (M) (4/10/2025 - 5/3/2025)
Station 40 South (segment 132 FH)	912				777 (135)	MLV 37-2 to MLV 38-2: Anomaly Remediation (4/14/2025 - 5/16/2025) Sta 32: Unit 3B - Compressor Overhaul (4/14/2025 - 4/30/2025)
Station 47 (segment 143 FH)	1,184				889 (295)	MLV 40-3 to MLV 47-3: Pig Run - EMAT 4/22/25 (M) (4/22/2025) MLV 47-1AT to MLV 49-1: Anomaly Remediation (1/6/2025 - 10/31/2025) MLV 49-1 to MLV 50-1: Anomaly Remediation (3/4/2025 - 10/31/2025) MLV 59-4 to MLV 60-4: Shallow Pipe Lowering (4/17/2025 - 5/1/2025) Sta 42-2BL to Sta 47-2S: Pig Runs - Cleaning / Gauge 4/21 - 4/23 (4/21/2025 - 4/23/2025) Sta 42-2BL to Sta 47-2S: Pig Runs - TDW MDS 4/24 (4/24/2025) Sta 63: Unit 1D - Overhaul & Geislinger Coupling Inspection (4/7/2025 - 6/6/2025)
Station 63 (segment 163 FH)	1,233				845 (388)	MLV 71-3S to MLV 63-3D: Pig Runs - EMAT 4/23/25 (4/23/2025) MLV 71-3S to MLV 63-3D: Pig Runs - MFL-C 4/22/25 (4/22/2025)
Station 823 (segment 823 BH)	686				686
Station 834 (segment 834 BH)	679				670 (9)	Sta 834: Unit 6A - Overhaul (3/3/2025 - 11/3/2025)
Station 527 (segment 527 BH)	1,565				1485 (80)	MLV 530-1L to MLV 531-1: Anomaly Remediation (M) (4/22/2025 - 4/29/2025)
MLV 548 (segment 542 BH)	1,597				1480 (117)	Sta 534: Unit 6A - Piston Liner Replacement (3/25/2025 - 5/2/2025) Sta 542: Unit 3A - Overhaul (2/12/2024 - 6/20/2025)
Station 860 (segment 548 BH)	1,516				1495 (21)	Sta 555: Unit 5A - Torque Anchor Bolts & Crankshaft Deflections (4/21/2025 - 4/25/2025)
Station 860 North (Segment 860 BH)	1,793				1693 (100)	Sta 860: Force Majeure (8/18/2023 - TBD) Sta 860: Unit 1A - After Cooler/jacket Water leaking into crankcase (6/17/2024 - 6/28/2025)

						-Primary impact restrictions may be necessary
	TGP - Outage Impact Report					-Major impact restrictions may be necessary
	April 2025 (updated 04/10/25)					-Minor impact restrictions may be necessary depending on flow conditions
						-Little to no impact, though minor outages may cause incremental reductions
Station # / Lateral	Est Nominal Operating Capacity (Thousand Dth)	Week 1 (3/31 - 4/6)	Week 2 (4/7 - 4/13)	Week 3 (4/14 - 4/20)	Week 4 (4/21 - 4/27)	Primary Outage(s)
Station # / Lateral	Est Nominal Operating Capacity (Thousand Dth)	Est. Operational Capacity (Operational Impact) - Thousand Dth				Primary Outage(s)
Station 110 (segment 187 BH) (south thru Kentucky)	2,645				2490 (155)	MLV 106-4 to MLV 108-4: PHMSA Immediate Anomaly Remediation (3/26/2025 - 4/25/2025) MLV 108-3 to MLV 109-3A: Special Permit Pipe Replacement (4/21/2025 - 5/9/2025) MLV 109-3 to MLV 109-3A: Class Change Pipe Replacement (4/21/2025 - 5/9/2025) Sta 106: Unit 11B - Exhaust Manifold & Jacket Water System (4/14/2025 - 4/25/2025) Sta 106: Unit 2B- RV Failure (3/26/2025 - 5/15/2025)
Station 114 (segment 114 BH)	920				920
Station 204 (Segment 204 BH)	1,827				1747 (80)	MLV 206-3 to MLV 208-3: Immediate Anomaly Remediation (4/9/2025 - 4/25/2025) Sta 200: Unit 10A - Replacing Engine Chocks and Alignment (4/21/2025 - 4/25/2025) Sta 209: Unit 10A - Punch Carbon / Turbo Replacement (4/21/2025 - 4/25/2025)
Station 245 (segment 245 FH)	997				997
MLV 256 West (segment 249 FH)	1,213				920 (293)	Sta 249 Carlisle: Filter Inspection (4/25/2025 - 4/29/2025)
Station 254 (segment 256 FH)	1,213				1175 (38)	Sta 254: Unit 1A - Compressor Rod and Packing Replacement (4/21/2025 - 4/23/2025) Sta 254: Unit 4A - Turbo Replacement (4/21/2025 - 4/25/2025)
Station 261 Discharge East (segment 261 FH)	941				941
Fitchburg Lat to Gloucester (segment 268 FH)	202				185 (17)	MLV 270-1A to MLV 270C-101.1R: Anomaly Remediation (4/21/2025 - 4/26/2025)
Station 307 (segment 307 BH)	1,150				1,150
Station 315 (segment 315 BH)	1,854				1,854
Station 317 (segment 317 BH)	1,579				1570 (9)	MLV 316-1 to MLV 317-1: Hot Tap New Meter Station (Meter Hemlock PIN 412822) (M) (4/21/2025 - 4/22/2025)
Station 321 (segment 321 FH)	2,102				2052 (50)	Sta 321: Unit 5B - Emergent Repair (2/20/2025 - TBD)
MLV 324 (segment 324 FH)	1,767				1,767
Station 405 HC Line (segment 299 FH)	803				803

						-Primary impact restrictions may be necessary
	TGP - Outage Impact Report					-Major impact restrictions may be necessary
	April 2025 (updated 04/10/25)					-Minor impact restrictions may be necessary depending on flow conditions
						-Little to no impact, though minor outages may cause incremental reductions
Station # / Lateral	Est Nominal Operating Capacity (Thousand Dth)	Week 1 (3/31 - 4/6)	Week 2 (4/7 - 4/13)	Week 3 (4/14 - 4/20)	Week 4 (4/21 - 4/27)	Primary Outage(s)
Station # / Lateral	Est Nominal Operating Capacity (Thousand Dth)	Est. Operational Capacity (Operational Impact) - Thousand Dth				Primary Outage(s)
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

May 2025 (updated 04/10/25)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(4/28 - 5/4)

Week 2

(5/5 - 5/11)

Week 3

(5/12 - 5/18)

Week 4

(5/19 - 5/25)

Week 5

(5/26 - 6/1)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490 FH)

564

564

Station 1

(segment 101 BH)

400

400

Station 9

(segment 109 FH)

980

840

(140)

815

(165)

780

(200)

780

(200)

780

(200)

MLV 1-1BL to MLV 3-1: Anomaly Remediation (4/18/2025 - 5/28/2025)

MLV 4-1 to MLV 5-1: Anomaly Remediation (5/6/2025 - 5/30/2025) MLV 8-1 to MLV9-1: Anomaly Remediation (5/13/2025 - 6/27/2025)

Station 17

(segment 117 FH)

758

753

(5)

718

(40)

718

(40)

718

(40)

753

(5)

MLV 17-3 to MLV 18-3: Emergent Repair (1/22/2025 - TBD)

MLV 20-1A to MLV 24-1A: Anomaly Remediation (5/26/2025 - 6/13/2025) MLV 22-3 to MLV 23-3: Anomaly Remediation (5/5/2025 - 5/23/2025)

MLV 24-2 to MLV 25-2S: Pig Run - Cleaning / Gauge 5/6 to 5/8 (5/6/2025 - 5/8/2025)

MLV 24-2 to MLV 25-2S: Pig Run - Combo ILI 5/9 (5/9/2025)

Station 25

(segment 125 FH)

714

609

(105)

709

(5)

709

(5)

709

(5)

554

(160)

MLV 25-1 to MLV 26-1 Relocation: Highway 105 Widening (5/19/2025 -

6/6/2025)

MLV 25-2 to MLV 26-2: Anomaly Remediation (5/8/2025 - 5/15/2025) MLV 25-3 to MLV 32-3: Pig Run - Maintenance (5/27/2025)

MLV 25-3D to MLV 27-3: Anomaly Remediation (M) (4/10/2025 - 5/3/2025)

Station 40 South

(segment 132 FH)

912

777

(135)

647

(265)

777

(135)

797

(115)

717

(195)

MLV 32-2 to MLV 33-2: Anomaly Remediation (5/26/2025 - 6/13/2025)

MLV 34-2 to MLV 35-2: Anomaly Remediation (5/19/2025 - 5/30/2025) MLV 35-2 to MLV 36-2: Anomaly Remediation (5/19/2025 - 5/23/2025) MLV 36-1 to MLV 36-1A: Anomaly Remediation (6/1/2025 - 6/30/2025) MLV 36-1TX to MLV 36-1LA: Pig Run - Maintenance (5/6/2025)

MLV 37-2 to MLV 38-2: Anomaly Remediation (4/14/2025 - 5/16/2025) MLV 38-2 to MLV 39-2: Anomaly Remediation (4/28/2025 - 5/16/2025) MLV 39-1 to MLV 40-1S: Anomaly Remediation (6/1/2025 - 6/21/2025)

Sta 32: Unit 3B - Compressor Overhaul (4/14/2025 - 4/30/2025)

Station 47

(segment 143 FH)

1,181

1016

(165)

956

(225)

1076

(105)

1176

(5)

896

(285)

MLV 40-1D to MLV 47-1S: Pig Runs - Cleaning / Gauge 4/28 - 4/30 (M)

(4/28/2025 - 4/30/2025)

MLV 40-1D to MLV 47-1S: Pig Runs - TDW MDS 5/1 (M) (5/1/2025)

MLV 47-1AT to MLV 49-1: Anomaly Remediation (1/6/2025 - 10/31/2025) MLV 47-3D TO MLV 53-3CR: Pig Runs - Cleaning & Gauge 5/27 - 5/31 (M) (5/27/2025 - 5/31/2025)

MLV 49-1 to MLV 50-1: Anomaly Remediation (3/4/2025 - 10/31/2025) MLV 54-2D TO MLV 63-2S: Pig Runs - Cleaning / Gauge 5/07/25 (5/7/2025)

MLV 54-2D TO MLV 63-2S: Pig Runs - MFL-A 5/09/25 (5/9/2025)

MLV 59-4 to MLV 60-4: Shallow Pipe Lowering (4/17/2025 - 5/1/2025) MLV 60-4 to MLV 61-4: Shallow Pipe Lowering (5/1/2025 - 5/15/2025) Sta 47: B Building - Clean Motor Control Center (5/5/2025 - 5/7/2025) Sta 47: C Building - Clean Motor Control Center (5/5/2025 - 5/7/2025) Sta 47: D Building - Clean Motor Control Center (5/5/2025 - 5/7/2025) Sta 47: E Building - Clean Motor Control Center (5/5/2025 - 5/7/2025) Sta 47: Transformer Inspection (5/5/2025 - 5/7/2025)

Sta 63: Unit 1D - Overhaul & Geislinger Coupling Inspection (4/7/2025 - 6/6/2025)

Station 63

(segment 163 FH)

1,233

948

(285)

910

(323)

1090

(143)

1,233

MLV 63-2D to MLV 69-2: Pig Runs - Caliper / UMU 5/1/25 (5/1/2025)

MLV 63-2D to MLV 69-2: Pig Runs - Cleaning / Gauge 4/29/25 (4/29/2025) MLV 63-2D to MLV 69-2: Pig Runs - EMAT 5/8/25 (5/8/2025)

MLV 63-2D to MLV 69-2: Pig Runs - MFL-C 5/6/25 (5/6/2025)

MLV 63-4 to MLV 64-4: Shallow Pipe Lowering (5/12/2025 - 5/15/2025) Sta 71 Middleton: Annual ESD Test (5/7/2025 - 5/8/2025)

Sta 79 Lobelville: Annual ESD Test (5/6/2025)

Station 823

(segment 823 BH)

686

686

414

(272)

686

Sta. 823 (Kinder): Annual ESD Test (5/13/2025 - 5/15/2025)

Station 834

(segment 834 BH)

679

670

(9)

670

(9)

670

(9)

670

(9)

670

(9)

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

Station 847

(segment 847 BH)

284

284

210

(74)

210

(74)

284

MLV 843-1 TO MLV 847-1: Pig Runs - AFD 5/20/25 (5/20/2025)

MLV 843-1 TO MLV 847-1: Pig Runs - Caliper 5/15/25 (5/15/2025)

MLV 843-1 TO MLV 847-1: Pig Runs - Cleaning / Gauge 5/13/25 (5/13/2025) MLV 843-1 TO MLV 847-1: Pig Runs - EMAT 5/22/25 (5/22/2025)

Station 523

(segment 523 FH)

329

(329)

329

MLV 523-AD2: MLV Replacement (4/28/2025 - 5/9/2025)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

May 2025 (updated 04/10/25)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(4/28 - 5/4)

Week 2

(5/5 - 5/11)

Week 3

(5/12 - 5/18)

Week 4

(5/19 - 5/25)

Week 5

(5/26 - 6/1)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 527

(segment 527 BH)

1,565

1485

(80)

1,565

1345

(220)

MLV 530-1L to MLV 531-1: Anomaly Remediation (M) (4/22/2025 - 4/29/2025)

MLV 533-1 to MLV 533-1: Hot Tap for Meter Upgrade (Meter: Carnes PIN: 420366) (M) (5/26/2025 - 5/31/2025)

MLV 533-2 to MLV 533-2: Hot Tap for Meter Upgrade (Meter: Carnes PIN: 420366) (M) (5/26/2025 - 5/31/2025)

MLV 548

(segment 542 BH)

1,597

1480

(117)

1587

(10)

1587

(10)

1587

(10)

1587

(10)

Sta 534: Unit 6A - Piston Liner Replacement (3/25/2025 - 5/2/2025)

Sta 542: Unit 3A - Overhaul (2/12/2024 - 6/20/2025)

Station 860

(segment 548 BH)

1,516

1,516

Station 860 North (Segment 860 BH)

1,793

1310

(483)

1693

(100)

1693

(100)

1693

(100)

1693

(100)

MLV 565-2 TO MLV 559-2: Pig Runs - AFD 5/2/25 (5/2/2025)

MLV 565-2 TO MLV 559-2: Pig Runs - Cleaning / Gauge 4/28/25 (4/28/2025) MLV 565-2 TO MLV 559-2: Pig Runs - CLP 4/30/25 (4/30/2025)

Sta 860: Force Majeure (8/18/2023 - TBD)

Sta 860: Unit 1A - After Cooler/jacket Water leaking into crankcase (6/17/2024 - 6/28/2025)

Station 110

(segment 187 BH)

(south thru Kentucky)

2,645

2605

(40)

2600

(45)

2620

(25)

2630

(15)

2215

(430)

MLV 108-3 to MLV 109-3A: Special Permit Pipe Replacement (4/21/2025 -

5/9/2025)

MLV 109-3 to MLV 109-3A: Class Change Pipe Replacement (4/21/2025 - 5/9/2025)

Sta 106: Unit 2B- RV Failure (3/26/2025 - 5/15/2025)

Sta 110 Morehead: Annual ESD Test & Substation Inspection (5/27/2025 - 5/30/2025)

Sta 87: Unit 3D - Turbocharger Exchange (4/28/2025 - 6/13/2025) Sta 871: Unit 1A - Engine Inspection (5/13/2025)

Sta 871: Unit 2A - Engine Inspection (5/5/2025)

Sta 871: Unit 2A -Compressor Unloaders (5/5/2025 - 5/9/2025) Sta 96 Campbellsville: Annual ESD Test (5/28/2025 - 5/29/2025)

Sta 96 Campbellsville: Annual Substation Inspection (5/28/2025 - 5/30/2025)

Station 114

(segment 114 BH)

920

920

370

(550)

370

(550)

370

(550)

MLV 115-2A to MLV 116-2: Anomaly Remediation (5/19/2025 - 5/24/2025)

MLV 115-3 to MLV 116-3: Anomaly Remediation (M) (5/26/2025 - 6/7/2025) MLV 116-3 to MLV 117-3: Anomaly Remediation (5/23/2025 - 6/5/2025) MLV 119-2BL to MLV 119-2A: Anomaly Remediation (M) (5/14/2025 - 5/23/2025)

Station 200

(segment 200 BH)

1,765

1,765

1760

(5)

1760

(5)

1760

(5)

MLV 111-3B to MLV 112-3: Make Piggable (5/12/2025 - 5/30/2025)

MLV 200-2 to MLV 110-4: Pig Re-Runs - EMAT 5/13/25 (5/13/2025)

Station 204

(Segment 204 BH)

1,827

1531

(296)

1382

(445)

1467

(360)

1727

(100)

1717

(110)

MLV 204-2 to MLV 205-2: Anomaly Remediation (5/27/2025 - 6/1/2025)

MLV 205-2 to MLV 206-2: Anomaly Remediation (5/12/2025 - 5/21/2025) MLV 205-2 to MLV 206-2: Landslide Mitigation (5/19/2025 - 5/31/2025) MLV 207-2 to MLV 208-2: Anomaly Remediation (5/5/2025 - 5/10/2025) MLV 210-3 to MLV 210-3A: Class Change Replacement (5/12/2025 - 6/13/2025)

Sta 204: Annual ESD Test & Maintenance (5/5/2025 - 5/9/2025) Sta 204: Unit 11A - Install Aftercooler (4/28/2025 - 5/2/2025)

Sta 209 Cambridge: Annual ESD Test & Maintenance (5/12/2025 - 5/16/2025) Sta 209: Unit 13A - Crankcase Inspection (4/28/2025 - 5/2/2025)

Sta 214: Units 1A to 9A - Catalyst Cleaning (4/28/2025 - 5/2/2025)

Station 219 to

Station 224

(Segment 219 FH)

540

540

535

(5)

540

Sta 219: Unit 13A - Mounting Valve Operators / Testing (5/7/2025 - 5/9/2025)

Sta 219: Unit 13A - Unit Valve Replacement (5/5/2025 - 5/6/2025)

Station 230C (segment 296 FH)

743

743

390

(353)

743

MLV 230B-201 to MLV 230B-207: Pig Run - Maintenance Cleaning 5/20 - 5/22

(5/20/2025 - 5/22/2025)

Station 237

(segment 237 FH)

1,017

1,017

905

(112)

1,017

Sta 233: Annual ESD Test (5/20/2025)

Sta 233: Point to Point and Trans Cals (5/21/2025)

Station 245

(segment 245 FH)

997

997

480

(517)

465

(532)

855

(142)

975

(22)

MLV 245-2 TO MLV 249-2: Pig Runs - Cleaning / Gauge 5/6/25 (M) (5/6/2025)

MLV 245-2 TO MLV 249-2: Pig Runs - MFL-A / Cal / IMU Combo 5/7/25 (M) (5/7/2025)

Sta 241: Unit 1A - Main Bearing, Turbo, Compressor Boring & Valve Operator (5/19/2025 - 6/21/2025)

Sta 245 West Winfield: Annual ESD Test (5/13/2025 - 5/14/2025) Sta 245: Unit 1C - Water Wash & Borescope (5/12/2025 - 5/23/2025) Sta 245-1 to MLV 249-1: Pig Run - Maintenance (5/13/2025)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

May 2025 (updated 04/10/25)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(4/28 - 5/4)

Week 2

(5/5 - 5/11)

Week 3

(5/12 - 5/18)

Week 4

(5/19 - 5/25)

Week 5

(5/26 - 6/1)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

MLV 256 West

(segment 249 FH)

1,213

860

(353)

1140

(73)

1,213

Sta 249 Carlisle: Filter Inspection (4/25/2025 - 4/29/2025)

Sta 249: Unit 1A - Crankcase Inspection (4/28/2025 - 5/2/2025) Sta 249: Unit 2A - Engine Maintenance (5/5/2025 - 5/9/2025)

Station 254

(segment 256 FH)

1,213

893

(320)

1,213

893

(320)

1,213

MLV 254-1 to MLV 261-1: Pig Run - Maintenance (5/20/2025)

MLV 254-2 to MLV 261-2: Pig Run - Maintenance (5/21/2025) MLV 254-3 to MLV 258-3: Pig Run - Maintenance (5/22/2025) Sta 254 Nassau: Annual ESD Test (5/1/2025)

Sta 254 Nassau: Filter Inspection (4/30/2025)

Station 261 Discharge East (segment 261 FH)

941

941

670

(271)

941

Sta 261: Unit 1C - 4K Maintenance Activity and Water Wash (5/12/2025 -

5/13/2025)

Sta 261: Unit 2D - Water Wash (5/16/2025)

Sta 261: Unit 5A - 4K Maintenance Activity and Water Wash (5/14/2025 - 5/15/2025)

Fitchburg Lat to Gloucester (segment 268 FH)

202

185

(17)

185

(17)

185

(17)

185

(17)

185

(17)

MLV 270C-100: ECDA (4/28/2025 - 5/11/2025)

MLV 270C-101.1 to MLV 270C-101BL: Anomaly Remediation (M) (5/12/2025 - 5/31/2025)

Station 307

(segment 307 BH)

1,149

1,149

925

(224)

1,149

925

(224)

Sta 303A: Annual ESD Test & Maintenance (5/26/2025 - 5/30/2025)

Sta 303A: Unit 1A - Protective Device Checks (5/26/2025 - 5/30/2025) Sta 303A: Unit 1A - Water Wash (5/13/2025 - 5/14/2025)

Station 315

(segment 315 BH)

1,854

1,854

1430

(424)

1,854

Sta 315 Wellsboro: Annual ESD Test (5/19/2025 - 5/23/2025)

Sta 315 Wellsboro: Station Blowdown Silencer (5/19/2025 - 5/23/2025)

Station 321

(segment 321 FH)

2,102

2015

(87)

2,102

Sta 321: Unit 1C - Turbine Inspection (4/29/2025)

Sta 321: Unit 2C - Turbine Inspection (4/28/2025) Sta 321: Unit 5B - Emergent Repair (2/20/2025 - TBD)

Sta 321: Units 5B, 6B & 7B - Turbine Inspection (4/30/2025)

MLV 324

(segment 324 FH)

1,767

1,767

Station 405 HC Line (segment 299 FH)

803

803

Station 224

(segment 224 FH)

389

389

220

(169)

389

Sta 229: Annual ESD Test & Maintenance (5/14/2025 - 5/15/2025)

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

June 2025 (updated 04/10/25)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(6/2 - 6/8)

Week 2

(6/9 - 6/15)

Week 3

(6/16 - 6/22)

Week 4

(6/23 - 6/29)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490 FH)

564

564

Station 1

(segment 101 BH)

400

400

Station 9

(segment 109 FH)

980

950

(30)

650

(330)

650

(330)

950

(30)

MLV 13-3 to MLV 17-3: Pig Run - Cleaning 6/10/25 (M) (6/10/2025)

MLV 13-3 to MLV 17-3: Pig Run - EMAT 6/20/25 (M) (6/20/2025) MLV 13-3 to MLV 17-3: Pig Run - Gauge 6/12/25 (M) (6/12/2025) MLV 13-3 to MLV 17-3: Pig Run - MFL-A 6/16/25 (M) (6/16/2025) MLV 13-3 to MLV 17-3: Pig Run - MFL-C 6/18/25 (M) (6/18/2025)

MLV 8-1 to MLV9-1: Anomaly Remediation (5/13/2025 - 6/27/2025)

Station 17

(segment 117 FH)

758

753

(5)

753

(5)

603

(155)

603

(155)

MLV 17-1D to MLV 20-1A: Anomaly Remediation (6/16/2025 - 7/4/2025)

MLV 17-3 to MLV 18-3: Emergent Repair (1/22/2025 - TBD)

MLV 20-1A to MLV 24-1A: Anomaly Remediation (5/26/2025 - 6/13/2025)

Station 25

(segment 125 FH)

714

709

(5)

714

MLV 25-1 to MLV 26-1 Relocation: Highway 105 Widening (5/19/2025 -

6/6/2025)

Station 40 South

(segment 132 FH)

912

717

(195)

717

(195)

747

(165)

747

(165)

MLV 32-2 to MLV 33-2: Anomaly Remediation (5/26/2025 - 6/13/2025)

MLV 36-1 to MLV 36-1A: Anomaly Remediation (6/1/2025 - 6/30/2025) MLV 39-1 to MLV 40-1S: Anomaly Remediation (6/1/2025 - 6/21/2025) MLV 39-2 to MLV 40-2S: Anomaly Remediation (6/22/2025 - 7/15/2025)

Station 47

(segment 143 FH)

1,176

776

(400)

1136

(40)

1171

(5)

1171

(5)

MLV 40-4D to MLV 47-4S: Pig Runs - Maintenance (M) (6/10/2025)

MLV 47-1A to MLV 48-1: Class Change (6/2/2025 - 11/30/2025) MLV 47-1AT to MLV 49-1: Anomaly Remediation (1/6/2025 - 10/31/2025)

MLV 47-3D TO MLV 53-3CR: Pig Runs - TDW MDS 6/3 (M) (6/3/2025)

MLV 49-1 to MLV 50-1: Anomaly Remediation (3/4/2025 - 10/31/2025) Sta 47: Scrubber Filter Separator Cleaning & Inspection (6/2/2025 - 6/6/2025)

Sta 63: Unit 1D - Overhaul & Geislinger Coupling Inspection (4/7/2025 - 6/6/2025)

Station 63

(segment 163 FH)

1,233

1,233

945

(288)

1155

(78)

MLV 63-2D to MLV 69-2: Pig Runs - Cleaning / Gauge 6/17/25 (6/17/2025)

MLV 63-2D to MLV 69-2: Pig Runs - MDS 6/19/25 (6/19/2025) MLV 71-2D to MLV 79-2S: Pig Runs - EMAT 6/24/25 (6/24/2025)

Station 823

(segment 823 BH)

686

215

(471)

686

Sta 827 to Sta 823: Pig Run - Maintenance (M) (6/3/2025)

Sta 834 to Sta 827: Maintenance Pig (M) (6/3/2025)

Station 827 (Alexandria): Annual ESD and Maintenance (6/2/2025 - 6/5/2025)

Station 834

(segment 834 BH)

679

670

(9)

670

(9)

670

(9)

670

(9)

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

Station 847

(segment 847 BH)

284

284

220

(64)

220

(64)

MLV 838-1 TO MLV 834-1: Pig Runs - Cleaning / Gauge 6/16 - 6/18 (M)

(6/16/2025 - 6/18/2025)

MLV 838-1 TO MLV 834-1: Pig Runs - ROSEN AFD (MFL-C) 6/24 (M) (6/24/2025)

MLV 838-1 TO MLV 834-1: Pig Runs - ROSEN CAL / IMU 6/19 (M) (6/19/2025) MLV 838-1 TO MLV 834-1: Pig Runs - ROSEN EMAT 6/26 (M) (6/26/2025)

MLV 548

(segment 542 BH)

1,597

1587

(10)

1587

(10)

1587

(10)

1,597

Sta 542: Unit 3A - Overhaul (2/12/2024 - 6/20/2025)

Station 860

(segment 548 BH)

1,516

503

(1013)

503

(1013)

503

(1013)

503

(1013)

MLV 556-2: Make Piggable - Valve Replacement (6/2/2025 - 6/30/2025)

MLV 557-2: Make Piggable - Valve Replacement (6/2/2025 - 6/30/2025) MLV 558-2: Make Piggable - Valve Replacement (6/2/2025 - 6/30/2025)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

June 2025 (updated 04/10/25)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(6/2 - 6/8)

Week 2

(6/9 - 6/15)

Week 3

(6/16 - 6/22)

Week 4

(6/23 - 6/29)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 860 North (Segment 860 BH)

1,793

780

(1013)

780

(1013)

780

(1013)

780

(1013)

MLV 560-2 to MLV 561-2: Class Change Pipe Replacement (6/2/2025 -

6/30/2025)

MLV 560-2: Make Piggable - Valve Replacement (6/2/2025 - 6/30/2025) MLV 561-2: Make Piggable - Valve Replacement (6/2/2025 - 6/30/2025) MLV 562-2: Make Piggable - Valve Replacement (6/2/2025 - 6/30/2025) MLV 563-2: Make Piggable - Valve Replacement (6/2/2025 - 6/30/2025) MLV 564-2: Make Piggable - Valve Replacement (6/2/2025 - 6/30/2025) Sta 563 Joelton: Annual ESD Test (6/16/2025)

Sta 563 Joelton: Fuel Gas Filter Changeout & Gas Filtration - Unit 1 & 2 (6/16/2025 - 6/20/2025)

Sta 563 Joelton: Scrubber/Filter Separator cleaning & Inspection - Units 1A & 2A (6/16/2025 - 6/20/2025)

Sta 563 Joelton: Unit 2A - 4K/8K Inspection (6/16/2025) Sta 563: 2nd Quarterly Safety Checks (6/16/2025 - 6/20/2025)

Sta 860: Force Majeure (8/18/2023 - TBD)

Sta 860: Unit 1A - After Cooler/jacket Water leaking into crankcase (6/17/2024 - 6/28/2025)

Sta 860: Unit 1B - Replace Lubrication System & Eletctronic Bearing System

(6/23/2025 - 7/3/2025)

Station 110

(segment 187 BH)

(south thru Kentucky)

2,645

2235

(410)

1855

(790)

2155

(490)

1790

(855)

MLV 106-1D to MLV 111-7BR: Make Piggable Valve MLV 107-7 & MLV 109-7

Replacements (M) (6/7/2025 - 7/18/2025)

MLV 106-3C to MLV 107-3: Anomaly Remediation (6/16/2025 - 7/11/2025) MLV 107-4 to MLV 108-4: Anomaly Remediation (6/9/2025 - 6/15/2025) MLV 108-4 to MLV 109-4: Anomaly Remediation (6/23/2025 - 6/29/2025)

MLV 90-3 to MLV 91-3: HDD River Crossing Replacement (6/2/2025 - 8/1/2025) MLV 93-3 to MLV 94-3: HDD River Crossing Replacement (6/2/2025 - 8/1/2025) Sta 106 Clay City: Annual ESD Test & Maintenance (6/2/2025 - 6/6/2025)

Sta 87: Unit 3D - Turbocharger Exchange (4/28/2025 - 6/13/2025) Sta 871 Campbellsville: Annual ESD Test (6/24/2025 - 6/25/2025) Sta 871: Scrubber/Filter/Separator Inspection & Cleaning (6/23/2025 - 6/27/2025)

Sta 875 Richmond: Annual ESD Test & Maintenance (6/10/2025 - 6/12/2025)

Station 114

(segment 114 BH)

920

370

(550)

370

(550)

370

(550)

370

(550)

MLV 112-3 to MLV 112-3A: Anomaly Remediation (M) (6/16/2025 - 6/30/2025)

MLV 115-3 to MLV 116-3: Anomaly Remediation (M) (5/26/2025 - 6/7/2025) MLV 116-3 to MLV 117-3: Anomaly Remediation (5/23/2025 - 6/5/2025) MLV 117-3 to MLV 118-3: Anomaly Remediation (6/6/2025 - 6/12/2025) MLV 120-2 to MLV 121-2: Anomaly Remediation (6/13/2025 - 6/30/2025) Sta 114 Catlettsburg: Annual ESD Test & Substation Inspection (6/2/2025 - 6/6/2025)

Sta 118A Tyler Mountain: Unit 1A - 4k Hr Inspection (6/9/2025 - 6/11/2025)

Station 204

(Segment 204 BH)

1,827

1757

(70)

1557

(270)

1,827

1787

(40)

MLV 210-3 to MLV 210-3A: Class Change Replacement (5/12/2025 - 6/13/2025)

MLV 213-2A to MLV 214-2: Special Permit Replacement (6/23/2025 - 8/30/2025) Sta 214: Annual ESD Test & Maintenance (6/9/2025 - 6/13/2025)

Station 237

(segment 237 FH)

1,017

1,017

930

(87)

Sta 237: Unit 3A - Unit 3A Device Tests (6/26/2025)

Station 245

(segment 245 FH)

997

975

(22)

975

(22)

785

(212)

997

Sta 241: Annual ESD Test (6/17/2025)

Sta 241: Point to Point and Trans Cals (6/18/2025)

Sta 241: Unit 1A - Main Bearing, Turbo, Compressor Boring & Valve Operator (5/19/2025 - 6/21/2025)

Station 254

(segment 256 FH)

1,213

1045

(168)

960

(253)

1090

(123)

1080

(133)

MLV 254-1L to MLV 255-1: Anomaly Remediation (6/2/2025 - 6/21/2025)

MLV 255-1 to MLV 256-1: Anomaly Remediation (6/9/2025 - 6/14/2025) MLV 257-1 to MLV 258-1: Anomaly Remediation (6/23/2025 - 6/28/2025) MLV 258-1 to MLV 259-1: Anomaly Remediation (6/9/2025 - 7/19/2025) MLV 259-1 to MLV 260-1: Anomaly Remediation (6/2/2025 - 6/14/2025)

Station 261 Discharge East (segment 261 FH)

941

941

Station 266A (segment 282 FH)

371

(371)

371

MLV 266A-102A to 266A-104A: Make Piggable - Tee Replacement (M) (6/2/2025

- 6/11/2025)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

June 2025 (updated 04/10/25)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(6/2 - 6/8)

Week 2

(6/9 - 6/15)

Week 3

(6/16 - 6/22)

Week 4

(6/23 - 6/29)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Tewksbury

Incremental Lateral (segment 285 FH)

(17)

MLV 270B-101.1 TO MLV 270B-103: Pig Runs - Cleaning / Gauge 6/3/25 (M)

(6/3/2025)

MLV 270B-101.1 TO MLV 270B-103: Pig Runs - MFL-C / Cal / IMU Combo 6/4/25 (M) (6/4/2025)

Station 307

(segment 307 BH)

1,148

1,148

930

(218)

1,148

Sta 313 Coudersport: Annual ESD Test (6/17/2025 - 6/19/2025)

Station 315

(segment 315 BH)

1,854

1,854

Station 321

(segment 321 FH)

2,102

2,102

1630

(472)

2,102

Sta 321: Station Valves for ESD System (6/12/2025)

MLV 324

(segment 324 FH)

1,767

1,767

MLV 336 East

(segment 336 FH)

153

153

(153)

MLV 339-1: ECDA (6/23/2025 - 7/6/2025)

Station 261

South 300 Line

(segment 355 BH)

(47)

MLV 346-1: MLV Replacement (M) (6/23/2025 - 7/1/2025)

Station 405 HC Line (segment 299 FH)

803

803

Station 224

(segment 224 FH)

389

389

290

(99)

389

Sta 224: Annual ESD Test (6/10/2025 - 6/11/2025)

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

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

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

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

July 2025 (updated 04/10/25)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(6/30 - 7/6)

Week 2

(7/7 - 7/13)

Week 3

(7/14 - 7/20)

Week 4

(7/21 - 7/27)

Week 5

(7/28 - 8/3)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 409 (Donna Line) (segment 490 FH)

564

564

Station 1

(segment 101 BH)

400

400

Station 9

(segment 109 FH)

980

980

660

(320)

660

(320)

MLV 4-3 to MLV 9-3: Anomaly Remediation (7/21/2025 - 8/8/2025)

Station 17

(segment 117 FH)

758

603

(155)

348

(410)

753

(5)

753

(5)

753

(5)

MLV 17-1D to MLV 20-1A: Anomaly Remediation (6/16/2025 - 7/4/2025)

MLV 17-2D to MLV 20-2A: Anomaly Remediation (7/7/2025 - 7/11/2025) MLV 17-3 to MLV 18-3: Emergent Repair (1/22/2025 - TBD)

Station 25

(segment 125 FH)

714

714

Station 40 South

(segment 132 FH)

912

747

(165)

777

(135)

587

(325)

587

(325)

587

(325)

MLV 36-1 to MLV 36-1A: Anomaly Remediation (6/1/2025 - 6/30/2025)

MLV 39-2 to MLV 40-2S: Anomaly Remediation (6/22/2025 - 7/15/2025) MLV 39-3 to MLV 40-3S: Anomaly Remediation (7/16/2025 - 8/15/2025)

Carthage Lateral (segment 700 FH)

323

323

175

(148)

323

Sta 40: Carthage Check Meter (M) (7/21/2025 - 7/24/2025)

Station 47

(segment 143 FH)

1,176

1171

(5)

1171

(5)

1036

(140)

1036

(140)

1171

(5)

MLV 41-2 to MLV 42-2: Anomaly Remediation (8/1/2025 - 9/1/2025)

MLV 47-1A to MLV 48-1: Class Change (6/2/2025 - 11/30/2025) MLV 47-1AT to MLV 49-1: Anomaly Remediation (1/6/2025 - 10/31/2025)

MLV 49-1 to MLV 50-1: Anomaly Remediation (3/4/2025 - 10/31/2025) MLV 54-4D TO MLV 63-4S: Pig Runs - AFD 7/22/25 (7/22/2025) MLV 54-4D TO MLV 63-4S: Pig Runs - Caliper 7/17/25 (7/17/2025)

MLV 54-4D TO MLV 63-4S: Pig Runs - Cleaning / Gauge 7/15/25 (7/15/2025) MLV 54-4D TO MLV 63-4S: Pig Runs - EMAT 7/24/25 (7/24/2025)

Station 63

(segment 163 FH)

1,233

1,233

1170

(63)

1,233

1085

(148)

MLV 71-1D to MLV 77-1A: Pig Runs - Cleaning / Gauge 7/15/25 (7/15/2025)

MLV 71-1D to MLV 77-1A: Pig Runs - MDS 7/17/25 (7/17/2025)

MLV 82-2C to MLV 87-2S: Pig Runs - Cleaning / Gauge 7/29/25 (7/29/2025) MLV 82-2C to MLV 87-2S: Pig Runs - MDS 7/31/25 (7/31/2025)

Station 823

(segment 823 BH)

686

686

Station 834

(segment 834 BH)

679

670

(9)

670

(9)

670

(9)

670

(9)

670

(9)

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

MLV 548

(segment 542 BH)

1,597

1,597

Station 860

(segment 548 BH)

1,516

503

(1013)

1,516

MLV 556-2: Make Piggable - Valve Replacement (6/2/2025 - 6/30/2025)

MLV 557-2: Make Piggable - Valve Replacement (6/2/2025 - 6/30/2025) MLV 558-2: Make Piggable - Valve Replacement (6/2/2025 - 6/30/2025)

Station 860 North (Segment 860 BH)

1,793

780

(1013)

1693

(100)

1693

(100)

1693

(100)

1693

(100)

MLV 560-2 to MLV 561-2: Class Change Pipe Replacement (6/2/2025 -

6/30/2025)

Sta 860: Unit 1B - Replace Lubrication System & Eletctronic Bearing System

(6/23/2025 - 7/3/2025)

-Primary impact restrictions may be necessary

TGP - Outage Impact Report

-Major impact restrictions may be necessary

July 2025 (updated 04/10/25)

-Minor impact restrictions may be necessary depending on flow conditions

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

Station # / Lateral

Est Nominal Operating Capacity (Thousand Dth)

Week 1

(6/30 - 7/6)

Week 2

(7/7 - 7/13)

Week 3

(7/14 - 7/20)

Week 4

(7/21 - 7/27)

Week 5

(7/28 - 8/3)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Station 110

(segment 187 BH)

(south thru Kentucky)

2,645

2155

(490)

1880

(765)

2155

(490)

2525

(120)

2375

(270)

MLV 106-1D to MLV 111-7BR: Make Piggable Valve MLV 107-7 & MLV 109-7

Replacements (M) (6/7/2025 - 7/18/2025)

MLV 106-3C to MLV 107-3: Anomaly Remediation (6/16/2025 - 7/11/2025) MLV 107-3 to MLV 108-3: Anomaly Remediation (7/14/2025 - 7/27/2025) MLV 108-3 to MLV 109-3: Anomaly Remediation (7/28/2025 - 8/10/2025) MLV 109-4 to MLV 110-4: Anomaly Remediation (7/7/2025 - 7/13/2025) MLV 871-2 to MLV 871-2A: Anomaly Remediation (7/28/2025 - 9/29/2025) MLV 871-2A to MLV 872-2: Anomaly Remediation (7/28/2025 - 9/29/2025) MLV 872-1 to MLV 873-1: Anomaly Remediation (7/14/2025 - 7/25/2025) MLV 872-2 to MLV 873-2: Anomaly Remediation (7/28/2025 - 9/29/2025) MLV 873-2 to MLV 873-2A: Anomaly Remediation (7/28/2025 - 9/29/2025) MLV 875-1 to MLV 876-1R: Anomaly Remediation (7/14/2025 - 7/25/2025)

MLV 90-3 to MLV 91-3: HDD River Crossing Replacement (6/2/2025 - 8/1/2025) MLV 93-3 to MLV 94-3: HDD River Crossing Replacement (6/2/2025 - 8/1/2025)

Station 114

(segment 114 BH)

920

370

(550)

920

MLV 112-3 to MLV 112-3A: Anomaly Remediation (M) (6/16/2025 - 6/30/2025)

MLV 120-2 to MLV 121-2: Anomaly Remediation (6/13/2025 - 6/30/2025)

Station 204

(Segment 204 BH)

1,827

1787

(40)

1787

(40)

1402

(425)

1631

(196)

1631

(196)

MLV 204-2 to MLV 200-2: Pig Runs - Cleaning / Gauge 7/29/25 (M) (7/29/2025)

MLV 204-2 to MLV 200-2: Pig Runs - MFL-A Combo 7/31/25 (M) (7/31/2025)

MLV 209-2 to MLV 204-2: Pig Runs - Cleaning Gauge 7/15/25 (7/15/2025) MLV 209-2 to MLV 204-2: Pig Runs - EMAT 7/22/25 (7/22/2025)

MLV 209-2 to MLV 204-2: Pig Runs - MFL-A Combo 7/17/25 (7/17/2025)

MLV 213-2A to MLV 214-2: Special Permit Replacement (6/23/2025 - 8/30/2025)

Sta 200 Greenup: Annual ESD Test (7/14/2025 - 7/18/2025)

Station 219 to

Station 224

(Segment 219 FH)

540

540

525

(15)

540

Sta 219: Unit 1A to 6A - Protective Device Checks (7/14/2025 - 7/18/2025)

Sta 219: Unit 7A to 13A - Protective Device Checks (7/14/2025 - 7/18/2025)

Station 230C (segment 296 FH)

743

743

570

(173)

743

Station 230C: Annual ESD (M) (7/16/2025 - 7/17/2025)

Station 245

(segment 245 FH)

997

997

935

(62)

997

Sta 241: Unit 3A - Device and Relief Valve Tests (7/15/2025 - 7/16/2025)

Station 254

(segment 256 FH)

1,213

1100

(113)

1100

(113)

1100

(113)

1,213

MLV 258-1 to MLV 259-1: Anomaly Remediation (6/9/2025 - 7/19/2025)

Station 261 Discharge East (segment 261 FH)

941

941

Station 266A (segment 282 FH)

371

371

345

(26)

371

MLV 266A-102A TO MLV 266A-104A: Pig Runs - Cleaning / Gauge 7/22/25 (M)

(7/22/2025)

MLV 266A-102A TO MLV 266A-104A: Pig Runs - MFL-A / Cal / IMU Combo 7/23/25 (M) (7/23/2025)

Station 307

(segment 307 BH)

1,148

1,148

1105

(43)

1105

(43)

Sta 307: Unit 1A - Protective Device Checks (7/21/2025 - 7/22/2025)

Sta 307: Unit 2A - Protective Device Checks (7/23/2025 - 7/25/2025) Sta 307: Unit 3A - Protective Device Checks (7/28/2025 - 7/29/2025) Sta 307: Unit 4A - Protective Device Checks (7/30/2025 - 8/1/2025)

Station 315

(segment 315 BH)

1,854

1,854

MLV 324

(segment 324 FH)

1,767

1,767

1200

(567)

MLV 327-2B to MLV 328-2: Anomaly Remediation (7/28/2025 - 8/2/2025)

MLV 336 East

(segment 336 FH)

153

(153)

153

MLV 339-1: ECDA (6/23/2025 - 7/6/2025)

							-Primary impact restrictions may be necessary
		TGP - Outage Impact Report					-Major impact restrictions may be necessary
		July 2025 (updated 04/10/25)					-Minor impact restrictions may be necessary depending on flow conditions
							-Little to no impact, though minor outages may cause incremental reductions
Station # / Lateral	Est Nominal Operating Capacity (Thousand Dth)	Week 1 (6/30 - 7/6)	Week 2 (7/7 - 7/13)	Week 3 (7/14 - 7/20)	Week 4 (7/21 - 7/27)	Week 5 (7/28 - 8/3)	Primary Outage(s)
Station # / Lateral	Est Nominal Operating Capacity (Thousand Dth)	Est. Operational Capacity (Operational Impact) - Thousand Dth					Primary Outage(s)
Station 261 South 300 Line (segment 355 BH)	47	0 (47)	47	47	47	47	MLV 346-1: MLV Replacement (M) (6/23/2025 - 7/1/2025)
Station 405 HC Line (segment 299 FH)	803	803	690 (113)	803	803	803	Sta 405A: Annual ESD Test (7/8/2025) Sta 405A: Filter / Scrubber Change (7/9/2025) Sta 405A: Point to Point and Trans Cals (7/9/2025) Sta 405A: Unit Protective Device Tests (7/9/2025)
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.