-Primary impact restrictions may be necessary
TGP - Outage Impact Report
-Major impact restrictions may be necessary
Seven Day Forecast (updated 08/06/26)
-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
(8/10)
Tuesday
(8/11)
Wednesday
(8/12)
Thursday
(8/13)
Friday
(8/14)
Saturday
(8/15)
Sunday
(8/16)
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
640
(387)
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)
Station 17
(segment 117 FH)
1,122
900
(222)
MLV 19-1 TO MLV 20-1A: Pipe Replacement (M) (8/6/2026 - 9/15/2026) MLV 26-3 Relocation: Highway 59 Widening (M) (8/4/2026 - 8/20/2026)
Station 25
(segment 125 FH)
1,078
Station 47
(segment 143 FH)
1,343
1105
(238)
MLV 40-3D to MLV 47-3S: Pig Run - Maintenance Cleaning (8/11/2026) MLV 40-4D to MLV 47-4S: Pig Run - Maintenance (8/13/2026)
Station 63
(segment 163 FH)
1,242
1117
(125)
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 (8/11/2026 - 8/21/2026)
Station 823
(segment 823 BH)
734
Station 534 South of Pool (segment 530
BH)
1,550
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 - 8/14/2026)
Station 860
(segment 548 BH)
1,593
1390
(203)
MLV 539-2 to MLV 540-2: Anomaly Remediation (8/13/2026 - 8/22/2026) 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 6A - Turbo Replacment (7/8/2026 - 8/14/2026) Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 8/31/2026)
Sta 555: Unit 1B - Hot Gas Path (8/10/2026 - 9/18/2026)
Station 860 North (Segment 860
1,874
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)
MLV 102-1 to MLV 103-1: Anomaly Remediation (7/29/2026 - 8/10/2026) MLV 104-1 to MLV 105-1: Anomaly Remediation (8/6/2026 - 9/12/2026) MLV 109-4 to 110-4: Valve Installation & Crossover Work (8/10/2026 - 8/24/2026)
MLV 109-4 to MLV 110-4: Pipe Replacement (8/10/2026 - 8/31/2026) 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 1E - Scrubber/Filter/Separator Clean, Inspect & Filter Change (8/12/2026)
Sta 87: Unit 2E - Exhaust Bellows (8/10/2026 - 8/13/2026)
Sta 87: Unit 2E - Scrubber/Filter/Separator Clean, Inspect & Filter Change (8/13/2026)
Sta 87: Unit 3D - Power side Overhaul (6/22/2026 - 9/30/2026) Sta 871: Unit 1A - Emergent Repair (7/10/2026 - 8/15/2026)
Station 114
(segment 114 BH)
907
Station 204
(Segment 204 BH)
1,828
1735
(93)
Sta 200 Greenup: B Building - Divider Blocks (8/11/2026 - 8/12/2026)
Station 245
(segment 245 FH)
986
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
Station 307
(segment 307 BH)
1,153
Station 315
(segment 315 BH)
1,823
MLV 324
(segment 324 FH)
1,767
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.
August 2026 (updated 08/06/26)
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)
Station 409 (Donna Line) (segment 490
(57)
MLV 4-2 to MLV 5-2: Anomaly Remediation (8/24/2026 - 9/1/2026) 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)
1100
(22)
Station 834
(segment 834 BH)
683
600
(83)
Sta 834: Station Outage (8/26/2026 - 8/28/2026)
MLV 533-2 to MLV 534-2: Pipe Replacement (M) (6/4/2026 - 9/4/2026)
1190
(403)
MLV 539-2 to MLV 540-2: Anomaly Remediation (8/13/2026 - 8/22/2026) 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 546: Unit 2A - Engine PM (8/19/2026 - 8/20/2026)
Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 8/31/2026)
Station 860 North (Segment 860 BH)
1530
(344)
Sta 563: Unit 1A - Annual Inspection & Safety Device Check (8/24/2026 - 8/26/2026)
Sta 563: Unit 2A - Annual Inspection/CAV (8/26/2026 - 8/28/2026)
1882
(803)
MLV 104-1 to MLV 105-1: Anomaly Remediation (8/6/2026 - 9/12/2026) MLV 109-4 to 110-4: Valve Installation & Crossover Work (8/10/2026 - 8/24/2026)
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 3A - Engine Maintenance (8/24/2026 - 9/11/2026) Sta 87 Portland: Annual ESD Test (8/18/2026 - 8/19/2026)
393
(514)
MLV 117-3 to MLV 118-3: Special Permit Pipe Replacement (8/18/2026 - 9/6/2026)
MLV 119-2 to MLV 119-2A: Special Permit Pipe Replacement (8/18/2026 -
9/6/2026)
765
(221)
Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026) Sta 245-1 to MLV 249-1: Pig Re-Run - Cal/IMU (8/26/2026)
965
(188)
Sta 307 (Pigeon): MLV Operators / Air Comp Install / Fuel Skid (8/24/2026 - 8/28/2026)
Station 313 Discharge (segment 399
797
515
(282)
Sta 313 Coudersport: Annual ESD Test & Maintenance (8/17/2026 - 8/20/2026)
Station 317
(segment 317 BH)
1,548
1345
Sta 317: Annual ESD Test & Maintenance (8/24/2026 - 8/28/2026)
1355
(412)
MLV 324-1 to MLV 324-1A: Anomaly Remediation (8/24/2026 - 8/29/2026) Sta 325: Station Outage (8/26/2026 - 8/28/2026)
Station 224
(segment 224 FH)
388
280
(108)
Station 224: Scrubber Inspections & Filter Change (8/25/2026 - 8/26/2026)
September 2026 (updated 08/06/26)
(8/31 - 9/6)
(9/7 - 9/13)
(9/14 - 9/20)
(9/21 - 9/27)
Station 409A (Alamo) (segment 492 FH)
274
215
(59)
125
(149)
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)
300
(99)
MLV 1-1D to MLV 5-1: Spike Test (M) (9/21/2026 - 11/2/2026)
835
(192)
MLV 2-2 to MLV 3-2: Anomaly Remediation (9/2/2026 - 9/11/2026) MLV 4-2 to MLV 5-2: Anomaly Remediation (8/24/2026 - 9/1/2026)
1085
(37)
MLV 17-1D to MLV 20-1A: Pig Run - Chemical Cleaning (9/21/2026) MLV 17-1D to MLV 20-1A: Pig Run - EMAT (9/24/2026)
MLV 17-1D to MLV 20-1A: Pig Run - GAUGE PLATE (9/22/2026) MLV 17-1D to MLV 20-1A: Pig Run - MFL-C (9/23/2026)
MLV 19-1 TO MLV 20-1A: Pipe Replacement (M) (8/6/2026 - 9/15/2026)
1045
(298)
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)
MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 82-2C to MLV 83-2: Anomaly Remediation (9/21/2026 - 9/26/2026)
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
(segment 534 BH)
1,909
1440
(469)
MLV 534-2 to MLV 535-2: Tallahala Creek HDD (9/14/2026 - 9/23/2026)
725
(868)
1586
(7)
MLV 546-2 to MLV 547-2: Line Recoat (9/14/2026 - 9/18/2026)
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 (9/14/2026 - 9/18/2026) Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 8/31/2026)
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)
Sta 555: Unit 4A - Engine Maintenance (9/21/2026 - 9/24/2026)
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)
2113
(572)
2355
(330)
2173
(512)
2175
(510)
MLV 104-1 to MLV 105-1: Anomaly Remediation (8/6/2026 - 9/12/2026)
MLV 105-1 to MLV 105-1A: Anomaly Remediation (9/14/2026 - 9/25/2026) MLV 109-3A to MLV 110-3: Pipe Replacement (9/16/2026 - 9/30/2026) MLV 109-4 to MLV 110-4: Pipe Replacement (8/10/2026 - 8/31/2026) MLV 109-5 to MLV 109-5A: Pipe Replacement (9/1/2026 - 9/15/2026) MLV 109-5A to MLV 110-5: Pipe Replacement (9/1/2026 - 9/15/2026)
MLV 110-2 to MLV 114-2: CAO - Force Majeure (M) (7/14/2026 - 12/31/2026)
MLV 54-3 to MLV 106-3: Emergent Repair - CAO (2/26/2026 - 12/31/2026) MLV 93-4 to MLV 94-4: Anomaly Remediation (M) (9/14/2026 - 9/21/2026) 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)
812
(95)
MLV 119-2 to MLV 119-2A: Special Permit Pipe Replacement (8/18/2026 - 9/6/2026)
Sta 119A: Unit 1A - Solar Turbine Inspection (9/14/2026 - 9/16/2026)
1760
(68)
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
743
370
(373)
Sta 230C: Scrubber / Filter Inspection (M) (9/9/2026 - 9/10/2026)
680
(306)
Sta 245: Bldg A & B - Remove Unit Valves (9/21/2026 - 9/25/2026)
715
(173)
555
(333)
Sta 264 Charlton: Annual ESD Test (9/23/2026 - 9/24/2026)
Sta 264 Charlton: Unit 1C - Engine Maintenance (9/8/2026 - 10/9/2026)
Station 313 Discharge (segment 399 FH)
220
(577)
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)
1515
(252)
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
846
830
MLV 329AS-1 to MLV 329AD-1: Valve Replacement - MLV 329-1 (M) (9/9/2026 - 10/9/2026)
October 2026 (updated 08/06/26)
(9/28 - 10/4)
(10/5 - 10/11)
(10/12 - 10/18)
(10/19 - 10/25)
Week 5
(10/26 - 11/1)
Station 409A (Alamo) (segment 492
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)
1014
MLV 17-2D to MLV 20-2A: Pig Run - Chemical Cleaning (10/19/2026 - 10/20/2026)
MLV 17-2D to MLV 20-2A: Pig Run - GAUGE (10/21/2026) MLV 17-2D to MLV 20-2A: Pig Run - MFL-A (10/22/2026)
Sta 25: Annual ESD Test (10/13/2026)
1025
(318)
1295
(48)
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)
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)
1175
(375)
Sta 529: Unit 1A - Solar Inspection (10/12/2026 - 10/15/2026)
(218)
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)
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)
1965
(720)
2447
1802
(883)
MLV 104-3 to MLV 106-3S: HDD at Kentucky River (10/1/2026 - 10/5/2026) MLV 109-3A to MLV 110-3: Pipe Replacement (9/16/2026 - 9/30/2026)
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: Unit 3D - Power side Overhaul (6/22/2026 - 9/30/2026)
Sta 875: Unit 1A- 8K Solar Turbine Inspection (10/27/2026 - 10/29/2026) Sta 96: Unit 2D Replace Compressor Valves (10/12/2026 - 10/15/2026)
853
(54)
Sta 118A Tyler Mountain: Annual ESD Test (10/5/2026 - 10/6/2026)
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
355
(104)
MLV 233-2 to MLV 235-2: Pig Run (10/6/2026)
Sta 245: Unit 1A & 2A - Exhaust System & HP Fuel (4/27/2026 - 11/1/2026) Sta 245-1 to MLV 249-1: Pig Run - EMAT (10/28/2026)
500
(388)
Sta 261 Agawam: Annual ESD test (M) (9/28/2026 - 10/2/2026)
Sta 264 Charlton: Unit 1C - Engine Maintenance (9/8/2026 - 10/9/2026) Sta 264: Oil System (10/12/2026 - 10/16/2026)
775
(378)
695
(458)
MLV 302-2 to MLV 303-2: Anomaly Remediation (9/28/2026 - 10/10/2026)
Sta 219: Annual ESD Test & Scrubber Maintenance (10/12/2026 - 10/16/2026) Sta 303A: Unit 1A - Water Wash (10/6/2026 - 10/7/2026)
Sta 307: Unit 4A - Trabon (9/29/2026 - 10/2/2026)
630
(216)
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)
Cranston Lateral South
(segment 281
187
(62)
Sta 265: Unit 1A - Replace Lube Oil Fan (10/12/2026)
(124)
Sta 405A: Unit 1A - 4k Waterwash (10/13/2026) ; Sta 405A: Unit 1A - 8K Solar Turbine Inspection (10/14/2026)
200
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.
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