-Primary impact restrictions may be necessary
TGP - Outage Impact Report
-Major impact restrictions may be necessary
Seven Day Forecast (updated 06/04/26)
-Minor impact restrictions may be necessary depending on flow conditions
-Little to no impact, though minor outages may cause incremental reductions
Station / Seg
Est Nominal
Operating Capacity (Thousand Dth)
Monday
(6/8)
Tuesday
(6/9)
Wednesday
(6/10)
Thursday
(6/11)
Friday
(6/12)
Saturday
(6/13)
Sunday
(6/14)
Primary Outage(s) that may Impact Throughput
Est. Operational Capacity (Operational Impact) - Thousand Dth
Station 409
(Donna Line) (segment 490 FH)
564
Station 1
(segment 101 BH)
399
Station 9
(segment 109 BH)
1,027
904
(123)
945
(82)
MLV 4-1 to MLV 5-1: Emergent Repair (6/10/2026 - 7/1/2026) MLV 8-1BR to MLV 8-1: Emergent Repair (6/4/2026 - 6/9/2026)
Station 17
(segment 117 FH)
1,122
1104
(18)
MLV 19-2 TO MLV 20-2A: Pipe Replacement (M) (4/28/2026 - 6/19/2026)
Station 25
(segment 125 FH)
1,078
Station 47
(segment 143 FH)
1,343
1330
(13)
1300
(43)
MLV 40-3D to MLV 47-3S: Pig Run - Maintenance Cleaning (6/9/2026) MLV 55-1 to MLV 56-1: PHMSA Immediate (5/11/2026 - 7/31/2026)
Station 63
(segment 163 FH)
1,242
1117
(125)
MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026)
Station 823
(segment 823 BH)
734
Station 834
(segment 834 BH)
683
220
(463)
510
(173)
Sta 827 (Alexandria): Annual ESD and Maintenance (6/8/2026 - 6/11/2026) Sta 827 to Sta 823: Pig Run - Maintenance (M) (6/8/2026)
Sta 834 to Sta 827: Pig Run - Cleaning / Gauge 6/10/26 to 6/14/26 (M) (6/10/2026 - 6/14/2026)
Sta 834: Unit 7A - Turbocharger/Overhaul (6/1/2026 - 6/11/2026)
Station 527
(segment 527 BH)
2,395
2340
(55)
Sta 527: Unit 1C - High Vibration (2/4/2026 - 7/3/2026)
Station 534 South of Pool (segment 530 BH)
1,550
1370
(180)
1528
(22)
Sta 530: Unit 1A - Bearings (8/25/2025 - 12/31/2026)
Sta 530: Unit 3A - Crankshaft Replacement (6/9/2025 - 12/31/2026) Sta 530: Unit 5A - Top-End Overhaul (6/9/2025 - 12/31/2026)
Sta 534: Annual ESD Test (6/8/2026)
Sta 534: Unit 6A - Piston Liner & Unloader Replacements (6/30/2025 - 7/10/2026)
Sta 534: Unit 7A - Oil Pump (6/9/2026 - 6/10/2026)
MLV 548
(segment 542 BH)
1,647
1435
(212)
Sta 542: Unit 1A - Emergent Repair (1/1/2026 - 6/18/2026) Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/14/2026) Sta 542: Unit 3A - Emergent Repair (3/26/2026 - 6/28/2026)
Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 6/19/2026)
Station 860
(segment 548 BH)
1,593
1580
Sta 555: Unit 5A - Foundation Regrout (1/20/2026 - 6/19/2026)
Station 860 North (Segment 860
BH)
1,874
1540
(334)
Sta 563 Joelton: Unit 2A - Solar Turbine Exchange (6/8/2026 - 6/17/2026) Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2026)
Station 110
(segment 187 BH)
(south thru Kentucky)
2,685
1748
(937)
2225
(460)
2415
(270)
MLV 109-3: Crossover to Ln 5 Valve Replacements (5/28/2026 - 6/11/2026) MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 87-3 to MLV 96-3: Pig Run - Cal (6/9/2026)
Sta 110 Morehead: Annual ESD Test & Substation Inspection (6/8/2026 - 6/12/2026)
Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 6/16/2026)
Sta. 106: C Building - Install Water Trech System (6/8/2026 - 6/12/2026)
Station 114
(segment 114 BH)
907
812
(95)
Sta 119A: Unit 1A - Oil Cooler (6/11/2026)
Station 204
(Segment 204 BH)
1,828
1270
(558)
MLV 204-4 to MLV 206-4: Replace MLV 205-4 (M) (5/27/2026 - 6/12/2026) MLV 205-4 to MLV 207-4: Replace MLV 206-4 (M) (5/27/2026 - 6/12/2026) MLV 206-4 to MLV 208-4: Replace MLV 207-4 (M) (5/27/2026 - 6/12/2026)
MLV 207-4 to MLV 209-4: Replace MLV 208-4 (M) (5/27/2026 - 6/12/2026)
Station 245
(segment 245 FH)
986
830
(156)
Sta 241: Unit 2B - Oil System (6/9/2026 - 6/11/2026)
Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026) Sta 249: Unit 2B - 25k Overhaul (6/1/2026 - 6/26/2026)
Station 261 Discharge East (segment 261
FH)
888
500
(388)
Sta 261 Agawam: Unit Suction Valve Replacement (M) (6/8/2026 - 6/12/2026)
Station 307
(segment 307 BH)
1,153
770
(383)
MLV 306-2 to MLV 307-2: Anomaly Remediation (6/10/2026 - 6/15/2026) Sta 307: Unit 3A - Turbocharger swap (6/8/2026 - 6/12/2026)
Station 315
(segment 315 BH)
1,823
MLV 324
(segment 324 FH)
1,767
MLV 329
846
(346)
MLV 325-1 to MLV 329-1: Pig runs - Cal/IMU (M) (6/10/2026)
MLV 325-1 to MLV 329-1: Pig runs - Cleaning/Gauge (M) (6/9/2026) MLV 325-1 to MLV 329-1: Pig runs - MFL-C (M) (6/11/2026)
Station 405 HC Line (segment 299
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.
June 2026 (updated 06/04/26)
Station # / Lateral
Est Nominal Operating Capacity (Thousand Dth)
Week 1
(6/1 - 6/7)
Week 2
(6/8 - 6/14)
Week 3
(6/15 - 6/21)
Week 4
(6/22 - 6/28)
Primary Outage(s)
Station 409A (Alamo) (segment 492 FH)
274
125
(149)
MLV 409A-101.1 to MLV 409A-103: Pig Runs - Cleaning / Gauge (M) (6/23/2026) MLV 409A-101.1 to MLV 409A-103: Pig Runs - Cleaning / Gauge (M) (6/24/2026) MLV 409A-101.1 to MLV 409A-103: Pig Runs - EMAT (M) (6/26/2026)
MLV 409A-101.1 to MLV 409A-103: Pig Runs - MFL-C (M) (6/25/2026)
Station 409 (Donna Line) (segment 490
MLV 4-1 to MLV 5-1: Emergent Repair (6/10/2026 - 7/1/2026)
1080
(42)
1000
(122)
MLV 17-3DL to MLV 18-3A: Anomaly Remediation (6/15/2026 - 6/22/2026)
MLV 19-2 TO MLV 20-2A: Pipe Replacement (M) (4/28/2026 - 6/19/2026) MLV 19-3 TO MLV 20-3A: Pipe Replacement (M) (6/22/2026 - 7/23/2026)
1055
(23)
MLV 26-1 Relocation: Highway 59 Widening (6/22/2026 - 7/10/2026)
MLV 55-1 to MLV 56-1: PHMSA Immediate (5/11/2026 - 7/31/2026)
590
(93)
Sta 834 to Sta 827: Pig Run - BH Ultimate MFLA Combo 6/16/26 (M) (6/16/2026) Sta 834 to Sta 827: Pig Run - Cleaning / Gauge 6/15/26 (M) (6/15/2026)
Sta 834: Scrubber Filter Changeout (6/24/2026 - 6/26/2026) Sta 834: Station Outage (6/24/2026 - 6/25/2026)
Sta 534: Unit 6A - Piston Liner & Unloader Replacements (6/30/2025 -
7/10/2026)
1215
(432)
1635
(12)
MLV 539-2 to MLV 540-2: Anomaly Remediation (6/18/2026 - 6/20/2026) Sta 542: Unit 1A - Emergent Repair (1/1/2026 - 6/18/2026)
Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/14/2026) Sta 542: Unit 3A - Emergent Repair (3/26/2026 - 6/28/2026)
Sta 555: Unit 5A - Foundation Regrout (1/20/2026 - 6/19/2026) Sta. 555: Unit 4A - Engine Maintenance (6/22/2026 - 6/27/2026)
Sta. 555: Unit 6A - Engine Maintenance (6/15/2026 - 6/18/2026)
1530
(344)
1846
(28)
Sta 563 Joelton: Scrubber Filter Changeout (6/15/2026 - 6/17/2026) Sta 563 Joelton: Unit 2A - Solar Turbine Exchange (6/8/2026 - 6/17/2026)
Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2026)
1895
(790)
1930
(755)
MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 87-3 to MLV 96-3: Pig Run - EMAT (6/16/2026)
MLV 87-3 to MLV 96-3: Pig Run - MDS (6/23/2026)
Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 9/30/2026) Sta 871 Campbellsville: Annual ESD Test (6/23/2026)
1545
(283)
Sta 200 Greenup: Annual ESD Test (6/16/2026 - 6/19/2026) Sta 200: Unit 1B - Crankcase Inspection (6/16/2026 - 6/19/2026)
Station 219 to
Station 224
(Segment 219 FH)
539
140
(399)
MLV 219-1D to MLV 224-1: Pig Run - Maintenance (6/16/2026)
735
(251)
Sta 241: Annual ESD Test (6/16/2026)
MLV 306-2 to MLV 307-2: Anomaly Remediation (6/10/2026 - 6/15/2026)
1450
(317)
Sta 325: Station Outage (6/24/2026 - 6/25/2026)
Cranston Lateral South
(segment 281
187
150
(37)
MLV 265E-101.1 to MLV 265E-104: PIG RUNS - Cal/IMU (M) (6/23/2026) ; MLV
265E-101.1 to MLV 265E-104: PIG RUNS - Gauge/Cleaning tool (M) (6/22/2026)
; MLV 265E-101.1 to MLV 265E-104: PIG RUNS - MFL-A (M) (6/24/2026)
July 2026 (updated 06/04/26)
(6/29 - 7/5)
(7/6 - 7/12)
(7/13 - 7/19)
(7/20 - 7/26)
Week 5
(7/27 - 8/2)
640
(387)
MLV 11-1A to MLV 11-1: Anomaly Remediation (7/27/2026 - 8/14/2026) MLV 1-2D to MLV 5-2: Pig Run - Cleaning Gauge (7/13/2026) MLV 1-2D to MLV 5-2: Pig Run - Cleaning Gauge (7/14/2026) MLV 1-2D to MLV 5-2: Pig Run - Cleaning Gauge (7/15/2026) MLV 1-2D to MLV 5-2: Pig Run - Cleaning Gauge (7/16/2026) MLV 1-2D to MLV 5-2: Pig Run - Cleaning Gauge (7/17/2026)
MLV 1-2D to MLV 5-2: Pig Run - TDW MDS (7/21/2026)
MLV 13-1 to MLV 12-1: Anomaly Remediation (7/27/2026 - 8/13/2026) MLV 4-1 to MLV 5-1: Emergent Repair (6/10/2026 - 7/1/2026)
MLV 9-1D to MLV 10-1: Anomaly Remediation (7/27/2026 - 8/14/2026)
1100
MLV 19-1 TO MLV 20-1A: Pipe Replacement (M) (7/25/2026 - 9/2/2026) MLV 19-3 TO MLV 20-3A: Pipe Replacement (M) (6/22/2026 - 7/23/2026)
1070
(8)
955
MLV 25-2 to MLV 26-2: Pipe Replacement (7/11/2026 - 7/29/2026) MLV 26-1 Relocation: Highway 59 Widening (6/22/2026 - 7/10/2026) MLV 26-2 Relocation: Highway 59 Widening (7/11/2026 - 7/29/2026)
Sta 25: Annual ESD Test (7/21/2026)
1115
(228)
960
MLV 40-1D to MLV 47-1S: Pig Run - Maintenance (7/14/2026) MLV 40-4D to MLV 47-4S: Pig Run - Maintenance (7/9/2026)
Sta. 47: Station Transformer Maintenance (7/13/2026 - 7/14/2026)
901
(341)
MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 77-3 to MLV 77-3A: Pipe Replacements (7/20/2026 - 7/27/2026)
Station 823 Muskrat Line (segment 509
231
130
(101)
Sta 823 to MLV 516: Pig Run - Maintenance (M) (6/30/2026)
MLV 516
Muskrat Line (segment 516 FH)
241
100
(141)
Sta 523 to MLV 516: Pig Run - Chemical Cleaning / Gauge 7/6/26 to 7/10/26 (M) (7/6/2026 - 7/10/2026)
Sta 523 to MLV 516: Pig Run - MFL-A 7/11/26 (M) (7/11/2026)
1640
(7)
Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/14/2026)
1585
1430
(163)
MLV 557-3 to MLV 559-3: Pig Runs - Cal / IMU & MFL-A 6/4/26 (7/16/2026)
MLV 557-3 to MLV 559-3: Pig Runs - Cleaning / Gauge 6/2/26 (7/14/2026) Sta 555: Scrubber/Filter/Separator Clean, Inspect & Filter Change (7/21/2026 -
7/22/2026)
2534
(151)
2358
(327)
2040
(645)
2150
(535)
MLV 104-1 to MLV 105-1: Anomaly Remediation (7/13/2026 - 8/15/2026) MLV 107-7 to 110-7: Valve Installation & Crossover Work (7/7/2026 - 7/27/2026)
MLV 109-4 to 110-4: Valve Installation & Crossover Work (7/28/2026 - 8/11/2026)
MLV 109-4 to MLV 110-4: Pipe Replacement (7/28/2026 - 8/11/2026) MLV 109-7 to MLV 110-7: Pipe Replacement (7/7/2026 - 7/27/2026)
MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 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 96 Campbellsville: Annual ESD Test (7/14/2026 - 7/15/2026)
Sta 96 Campbellsville: Annual Substation Inspection (7/13/2026 - 7/16/2026) Sta 96: Unit 2D Replace Compressor Valves (7/5/2026 - 7/9/2026)
600
(307)
Sta 114: Unit 1D - Solar Turbine Inspection (6/29/2026 - 7/1/2026)
Station 230C
(segment 296 FH)
743
370
(373)
Sta 230C: Annual ESD (M) (7/13/2026 - 7/14/2026)
Station 237
(segment 237 FH)
1,006
780
(226)
MLV 237-1 to MLV 245-1: Pig Run - Cleaning/Gauge (7/27/2026) MLV 237-1 to MLV 245-1: Pig Run - MFL-C (7/29/2026)
970
(16)
760
Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026) Sta 245-1 to MLV 249-1: Pig Run - Cal/IMU (7/15/2026)
Sta 245-1 to MLV 249-1: Pig Run - Gauge/Cleaning tool (7/14/2026) Sta 245-1 to MLV 249-1: Pig Run - MFL-C (7/16/2026)
MLV 256 West
(segment 249 FH)
1,203
535
(668)
MLV 249-2 to MLV 254-2: Gauge/Cleaning tool (7/20/2026) MLV 249-2 to MLV 254-2: Hardspot/Geo (7/23/2026)
MLV 249-2 to MLV 254-2: MFL-A/IMU (7/21/2026)
930
(223)
(38)
Sta 219: Unit 1B - Protective Device Checks & GHG (7/20/2026 - 7/24/2026) Sta 219: Unit 1B - Save Air System (7/20/2026 - 7/31/2026)
Sta 307: Unit 1A - Protective Device Checks (7/20/2026 - 7/24/2026) Sta 307: Unit 2A - Protective Device Checks (7/20/2026 - 7/24/2026) Sta 307: Unit 3A - Protective Device Checks (7/20/2026 - 7/24/2026) Sta 307: Unit 4A - Protective Device Checks (7/20/2026 - 7/24/2026)
Station 313 Discharge (segment 399
797
720
(77)
Sta 313: Unit 1C - Substation Inspection (6/30/2026 - 7/1/2026)
Station 321
(segment 321 FH)
2,102
1715
Sta 321: Station Valves for ESD System (7/21/2026 - 7/23/2026)
1735
(32)
Sta 325: Units 4A - Water Wash & Borescope (7/6/2026 - 7/7/2026)
680
(114)
Sta 405A: Annual ESD Test / Filter Scrubber (7/7/2026 - 7/9/2026)
This document is updated on a weekly basis and outage schedules/impacts are subject to change as the week progresses. Dates posted on DART should be deemed correct in the event of conflicts between DART posted dates and dates on this report.
August 2026 (updated 06/04/26)
(8/3 - 8/9)
(8/10 - 8/16)
(8/17 - 8/23)
(8/24 - 8/30)
768
(259)
969
MLV 11-1A to MLV 11-1: Anomaly Remediation (7/27/2026 - 8/14/2026) MLV 13-1 to MLV 12-1: Anomaly Remediation (7/27/2026 - 8/13/2026)
MLV 19-1 TO MLV 20-1A: Pipe Replacement (M) (7/25/2026 - 9/2/2026)
925
(153)
MLV 26-3 Relocation: Highway 59 Widening (M) (8/3/2026 - 8/20/2026)
MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 82-2C to MLV 83-2: Anomaly Remediation (8/3/2026 - 8/7/2026)
Station 534 South of Pool (segment 530
1235
(412)
Sta 542 Dekalb: Annual ESD Test (8/25/2026 - 8/27/2026) Sta 542: Unit 2A - Emergent Repair (4/7/2026 - 8/14/2026)
2457
2470
(215)
2308
(377)
2050
(635)
MLV 104-1 to MLV 105-1: Anomaly Remediation (7/13/2026 - 8/15/2026) MLV 109-4 to 110-4: Valve Installation & Crossover Work (7/28/2026 - 8/11/2026)
MLV 109-4 to MLV 110-4: Pipe Replacement (7/28/2026 - 8/11/2026) MLV 109-5 to MLV 109-5A: Pipe Replacement (8/18/2026 - 9/1/2026) MLV 109-5A to MLV 110-5: Pipe Replacement (8/18/2026 - 9/1/2026)
Sta 110: Install ESD Silence Covers (8/24/2026 - 8/28/2026) Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 9/30/2026)
Sta 875: Unit 1A- 8K Solar Turbine Inspection (8/17/2026 - 8/21/2026)
Sta 96: Unit 2D - Install Ball Grove Valve (8/3/2026 - 8/7/2026)
393
(514)
MLV 117-3 to MLV 118-3: Special Permit Pipe Replacement (8/10/2026 - 8/31/2026)
MLV 119-2 to MLV 119-2A: Special Permit Pipe Replacement (8/10/2026 - 8/31/2026)
Sta 119A: Unit 1A - Solar Turbine Inspection (8/10/2026 - 8/12/2026)
1770
(58)
MLV 202-2 to MLV 203-2: CLASS CHANGE REPLACEMENT TGP 202-2 (8/17/2026 - 9/26/2026)
Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026)
(168)
Sta 261: Unit 2D - Engine Inspection & Borescope (8/3/2026 - 8/7/2026)
965
(188)
765
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)
515
(282)
Sta 313 Coudersport: Annual ESD Test & Maintenance (8/17/2026 - 8/20/2026)
Station 317
(segment 317 BH)
1,548
1345
(203)
Sta 317: Annual ESD Test & Maintenance (8/24/2026 - 8/28/2026)
(segment 224 FH)
388
280
(108)
Station 224: Scrubber Inspections & Filter Change (8/25/2026 - 8/26/2026)
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