-Primary impact restrictions may be necessary
TGP - Outage Impact Report
-Major impact restrictions may be necessary
Seven Day Forecast (updated 02/19/26)
-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
(2/23)
Tuesday
(2/24)
Wednesday
(2/25)
Thursday
(2/26)
Friday
(2/27)
Saturday
(2/28)
Sunday
(3/1)
Primary Outage(s) that may Impact Throughput
Est. Operational Capacity (Operational Impact) - Thousand Dth
Station 409
(Donna Line) (segment 490 FH)
585
Station 1
(segment 101 BH)
438
Station 9
(segment 109 FH)
1,022
385
(637)
MLV 9-1D TO MLV 17-1S: Pig Run - EMAT (M) (2/23/2026) MLV 9-1D TO MLV 17-1S: Pig Run - MFL-A (M) (2/25/2026)
Station 25
(segment 125 FH)
1,101
Station 47
(segment 143 FH)
1,354
1349
(5)
MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 3/16/2026) MLV 57-1 to MLV 58-1: PHMSA Immediate (2/28/2026 - 3/10/2026) MLV 58-1 to MLV 59-1: PHMSA Immediate (2/18/2026 - 2/27/2026)
MLV 60-1 to MLV 61-1: PHMSA Immediate (2/18/2026 - 2/23/2026)
Station 63
(segment 163 FH)
1,287
1260
(27)
MLV 72-2 to MLV 73-2: Anomaly Remediation (2/22/2026 - 2/27/2026)
Station 823
(segment 823 BH)
759
725
(34)
Sta 823: Unit 11A - Jacket Water Pump (1/6/2026 - 3/23/2026)
Station 834
(segment 834 BH)
733
720
(13)
Sta 834: Unit 6A - Overhaul (3/3/2025 - 3/21/2026)
Station 527
(segment 527 BH)
2,477
2425
(52)
Sta 527: Unit 1C - High Vibration (2/4/2026 - 3/20/2026)
Station 534 South of Pool (segment 530 BH)
1,632
1285
(347)
Sta 530: Unit 1A - Bearings (8/25/2025 - 3/31/2026) Sta 530: Unit 2A - Bearings (8/26/2025 - 3/31/2026)
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 530: Unit 6A - Bearings (10/6/2025 - 3/31/2026) Sta 530: Unit 7A - Bearings (10/6/2025 - 3/31/2026)
Sta 534: Unit 6A - Piston Liner & Unloader Replacements (3/25/2025 - 3/27/2026)
Sta 534: Unit 7A - Piston / Liner (5/20/2025 - 3/6/2026)
MLV 548
(segment 542 BH)
1,771
1735
(36)
1745
(26)
Sta 542: Unit 1A - Emergent Repair (1/1/2026 - 3/20/2026) Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 2/27/2026)
Station 860
(segment 548 BH)
1,697
1680
(17)
Sta 555: Unit 5A - Foundation Regrout (1/20/2026 - 5/22/2026)
Station 860 North (Segment 860
BH)
2,028
2000
(28)
Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2026)
Station 110
(segment 187 BH)
(south thru Kentucky)
2,775
2321
(454)
2731
(44)
MLV 106-3S to MLV 105-3: Emergent Pipeline Repair (2/9/2026 - 2/27/2026) MLV 90-3 to MLV 91-3: HDD River Crossing Replacement (1/24/2026 - 3/2/2026)
Sta 106: Unit 1C - Replace Power Cylinder Bearing #9 (11/24/2025 - 3/23/2026)
Station 114
(segment 114 BH)
948
Station 204
(Segment 204 BH)
1,895
Station 245
(segment 245 FH)
1,053
1040
Sta 245: Unit 7A - Coolant System (2/3/2026 - 2/23/2026)
Station 261 Discharge East (segment 261
FH)
1,035
Station 307
(segment 307 BH)
1,202
Station 315
(segment 315 BH)
1,915
MLV 324
(segment 324 FH)
1,885
Station 405 HC Line (segment 299
817
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.
March 2026 (updated 02/19/26)
Station # / Lateral
Est Nominal Operating Capacity (Thousand Dth)
Week 1
(3/2 - 3/8)
Week 2
(3/9 - 3/15)
Week 3
(3/16 - 3/22)
Week 4
(3/23 - 3/29)
Primary Outage(s)
Station 409 (Donna Line) (segment 490
310
(128)
Sta 1 Agua Dulce: Annual ESD Test (3/3/2026)
1060
(41)
950
(151)
MLV 24-1BR1 TO MLV 24-1A: Anomaly Remediation (3/23/2026 - 3/27/2026) MLV 26-1 Relocation: Highway 59 Widening (3/2/2026 - 3/23/2026)
MLV 26-2 Relocation: Highway 59 Widening (3/26/2026 - 4/13/2026)
Station 40 South
(segment 132 FH)
1,299
Station 40 KN South (segment 501
285
170
(115)
Sta 500-1 to Sta 823 (MLV 507-1): Pig Run - Maintenance (M) (3/25/2026)
Station 40 North
(segment 140 FH)
1,348
1240
(114)
1310
1035
(319)
MLV 43-3 to MLV 44-3: Anomaly Remediation (3/16/2026 - 3/21/2026) MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 3/16/2026)
MLV 56-1 to MLV 57-1: PHMSA Immediate (3/11/2026 - 3/12/2026) MLV 57-1 to MLV 58-1: PHMSA Immediate (2/28/2026 - 3/10/2026)
Sta. 47: Unit 1D/2D - D Building - Unit Valve Install (3/23/2026 - 3/24/2026)
Sta. 47: Unit 1E - E Building - Unit Valve Install (3/25/2026)
1400
(232)
Sta 542: Unit 1A - Emergent Repair (1/1/2026 - 3/20/2026)
1430
(267)
1525
(172)
MLV 550-1 to MLV 546-1: Pig Runs - CAL / IMU 3/12/26 (3/12/2026)
MLV 550-1 to MLV 546-1: Pig Runs - Cleaning / Gauge 3/10/26 (3/10/2026) MLV 550-1 to MLV 546-1: Pig Runs - EMAT 3/19/26 (3/19/2026)
MLV 550-1 to MLV 546-1: Pig Runs - MFL-C 3/17/26 (3/17/2026)
Sta 550: Unit 3A - Turbocharger Exchange (3/16/2026 - 4/3/2026) Sta 555: Unit 5A - Foundation Regrout (1/20/2026 - 5/22/2026)
1715
(313)
MLV 555-1L to MLV 558-1R: Anomaly Remediation (3/16/2026 - 4/3/2026) MLV 559-2 to MLV 565-2: Pig Run - EMAT (Re-run) (3/2/2026)
2533
(242)
2540
(235)
2650
(125)
MLV 109--3: Crossover to Ln 4 Valve Replacements (3/2/2026 - 3/8/2026) MLV 109--3: Crossover to Ln 5 Valve Replacements (3/9/2026 - 3/15/2026) MLV 90-3 to MLV 91-3: HDD River Crossing Replacement (1/24/2026 - 3/2/2026)
Sta 106: Unit 1C - Replace Power Cylinder Bearing #9 (11/24/2025 - 3/23/2026) Sta 96: Unit 1D - Compressor Valves (3/16/2026 - 4/3/2026)
755
(193)
MLV 110-2 to MLV 114-2S: Pig Run - Gauge (3/17/2026)
MLV 110-2 to MLV 114-2S: Pig Run - MFL-C (3/19/2026)
1760
(135)
MLV 209-2 to MLV 214-2: Pig Run - Cal/IMU (3/12/2026) MLV 209-2 to MLV 214-2: Pig Run - EMAT (3/19/2026)
MLV 209-2 to MLV 214-2: Pig Run - Gauge/Cleaning (3/10/2026) MLV 209-2 to MLV 214-2: Pig Run - Gauge/Cleaning (3/9/2026)
MLV 209-2 to MLV 214-2: Pig Run - MFL-C (3/17/2026)
April 2026 (updated 02/19/26)
(3/30 - 4/5)
(4/6 - 4/12)
(4/13 - 4/19)
(4/20 - 4/26)
Week 5
(4/27 - 5/3)
564
399
969
900
(69)
MLV 9-3D to MLV 11-3: Pig Run - Cleaning (4/13/2026)
MLV 9-3D to MLV 11-3: Pig Run - Gauge (4/14/2026) MLV 9-3D to MLV 11-3: Pig Run - MFL-A (4/15/2026)
Station 17
(segment 117 FH)
1,122
1104
(18)
MLV 19-2 TO MLV 20-2A: Pipe Replacement (M) (4/1/2026 - 6/8/2026)
1,078
927
930
(148)
820
(258)
MLV 26-1 to MLV 27-1: Install Road Casing (4/15/2026 - 5/15/2026)
MLV 26-2 Relocation: Highway 59 Widening (3/26/2026 - 4/13/2026) MLV 26-3 Relocation: Highway 59 Widening (M) (4/14/2026 - 5/4/2026)
1,343
(393)
Sta 47: Unit 1C thru 6C - Installing Unloaders (4/6/2026 - 4/17/2026) Sta 47: Unit 1E - Annual Turbine Maintenance (4/13/2026 - 4/16/2026)
Sta. 47: Scrubber/Filter/Separator Cleaning/Inspection/Changeout (4/6/2026 - 4/10/2026)
Sta. 47: Unit 1D - 16K hour Overhaul (4/6/2026 - 4/17/2026)
(segment 163 BH)
1,068
1,242
957
(285)
MLV 79-4 to MLV 71-4D: Pig Runs - Cleaning / Gauge 4/14/26 (4/14/2026) MLV 79-4 to MLV 71-4D: Pig Runs - EMAT 4/23/26 (4/23/2026)
734
683
670
Sta 834: Unit 4A - Replace Lubrication System (4/13/2026 - 4/17/2026)
Station 847
(segment 847 BH)
288
(segment 847 FH)
626
Station 823 Muskrat Line (segment 509
231
130
(101)
Sta 823 to MLV 516: Pig Run - Maintenance (M) (4/16/2026)
MLV 516
Muskrat Line (segment 516 FH)
241
75
(166)
MLV 516 to Sta 523: Pig Run - Cleaning / Gauge 4/18/26 to 4/22/26 (M) (4/18/2026 - 4/22/2026)
MLV 516 to Sta 523: Pig Run - MFL-A 4/24/26 (M) (4/24/2026)
1,550
1528
(22)
Sta 530: Unit 6A - Bearings (10/6/2025 - 3/31/2026)
Sta 530: Unit 7A - Bearings (10/6/2025 - 3/31/2026)
1,647
1,593
1576
1580
(163)
Sta 550: Unit 3A - Turbocharger Exchange (3/16/2026 - 4/3/2026)
Sta 555 Collinwood: Annual ESD Test & Maintenance (4/21/2026 - 4/24/2026) Sta 555: Unit 1B - Protective Device Inspection (4/28/2026 - 4/29/2026)
MLV 847-1 to MLV 851-1: Pig Runs - Cal / IMU & MFL-A 4/30/26 (4/30/2026)
MLV 847-1 to MLV 851-1: Pig Runs - Cleaning / Gauge 4/28/26 (4/28/2026)
Station 860 North (Segment 860 BH)
1,874
1846
1460
(414)
1540
(334)
MLV 555-1L to MLV 558-1R: Anomaly Remediation (3/16/2026 - 4/3/2026) Sta 563 Joelton: Annual ESD Test (4/8/2026 - 4/9/2026)
Sta 563 Joelton: Unit 1A - Lube Oil Varnish System Installation (4/6/2026 - 4/8/2026)
Sta 563 Joelton: Unit 2A - Lube Oil Varnish System Installation (4/8/2026 - 4/12/2026)
Sta 563 Joelton: Unit 2A - Solar Turbine Exchange (4/13/2026 - 4/21/2026) Sta 860: Unit 2C - 4K/Turbine Waterwash/Boroscope (4/9/2026 - 4/10/2026)
Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2026) Sta 860: Unit 1C - 4K/Turbine Waterwash/Boroscope (4/7/2026 - 4/8/2026)
2,685
2407
(278)
2601
(84)
2680
MLV 106-2 to MLV 110-2: Pig Run - Cal / IMU (4/2/2026)
MLV 106-2 to MLV 110-2: Pig Run - Cleaning / Gauge (3/31/2026) MLV 106-2 to MLV 110-2: Pig Run - MFL-A (4/7/2026)
Sta 106: Unit 1D - 8K Solar Turbine Inspection (3/30/2026 - 4/3/2026)
Sta 87: Unit 3D - Power side Overhaul (4/27/2026 - 7/30/2026) Sta 96: Unit 1D - Compressor Valves (3/16/2026 - 4/3/2026)
907
848
(59)
771
(136)
MLV 119-1 to MLV 121-1: Anomaly Remediation (4/13/2026 - 5/22/2026) Sta 118A: Solar Turbine Inspection (3/30/2026 - 4/1/2026)
1,828
1800
1545
(283)
1472
(356)
1340
(488)
1763
(65)
MLV 204-3 to MLV 209-3: Pig Run - Cal/IMU (4/16/2026) MLV 204-3 to MLV 209-3: Pig Run - EMAT (4/23/2026)
MLV 204-3 to MLV 209-3: Pig Run - Gauge/Cleaning (4/14/2026) MLV 204-3 to MLV 209-3: Pig Run - MFL-C (4/21/2026)
MLV 213-1A to MLV 213-1BR: SPECIAL PERMIT REPLACEMENT TGP 213-1
(M) (4/1/2026 - 5/22/2026)
MLV 214-2 to MLV 219-2: Pig Run - Cal/IMU (M) (4/30/2026)
MLV 214-2 to MLV 219-2: Pig Run - Gauge/Cleaning (M) (4/28/2026) Sta 204: ESD Test (4/20/2026 - 4/24/2026)
Sta 209 Cambridge: Annual ESD Test & Maintenance (4/6/2026 - 4/17/2026)
Station 233
(segment 233 FH)
459
83
(376)
100
(359)
MLV 230-1 to MLV 237-1: Pig Run - CAL/IMU/MFL-C (M) (4/1/2026) MLV 230-1 to MLV 237-1: Pig Run - EMAT (M) (4/6/2026)
MLV 230-1 to MLV 237-1: Pig Run - Gauge/Cleaning (M) (3/30/2026)
986
650
(336)
Sta 245 West Winfield: Annual ESD Test & Maintenance (4/30/2026 - 5/8/2026) Sta 249: Unit 1A - Crankcase Inspection (4/27/2026 - 5/1/2026)
MLV 256 West
(segment 249 FH)
1,203
535
(668)
MLV 249-2 to MLV 254-2: Cal/IMU (4/29/2026)
MLV 249-2 to MLV 254-2: Gauge/Cleaning tool (4/28/2026) MLV 249-2 to MLV 254-2: MFL-C (4/30/2026)
Station 254
(segment 256 FH)
MLV 254-3 to MLV 258-3A: Pig Runs - Cal/IMU/MFL-A Combo - 4/14/26 (4/14/2026)
MLV 254-3 to MLV 258-3A: Pig Runs - Gauge/Cleaning tool - 4/13/26
(4/13/2026)
888
1,153
1,823
1,767
MLV 336 East
(segment 336 FH)
153
140
145
(8)
MLV 336-1 to MLV 337-1: Anomaly Remediation (4/6/2026 - 4/10/2026) MLV 337-1 to MLV 338-1: Anomaly Remediation (4/11/2026 - 4/15/2026) MLV 338-1 to MLV 339-1: Anomaly Remediation (4/16/2026 - 4/20/2026) MLV 339-1 to MLV 340-1: Anomaly Remediation (4/21/2026 - 4/25/2026) MLV 340-1 to MLV 341-1: Anomaly Remediation (4/26/2026 - 4/30/2026)
MLV 341-1 to MLV 342-1: Anomaly Remediation (5/1/2026 - 5/5/2026)
794
680
Sta 313 to Sta 237: Pig Run - Cleaning Run (HC Line) (4/7/2026) Sta 405A: Unit Water Wash (4/7/2026)
Station 224
(segment 224 FH)
388
200
(188)
MLV 229-2 to MLV 232-2: Pig runs - Maintenance (M) (4/8/2026 - 4/9/2026)
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.
May 2026 (updated 02/19/26)
(5/4 - 5/10)
(5/11 - 5/17)
(5/18 - 5/24)
(5/25 - 5/31)
MLV 26-1 to MLV 27-1: Install Road Casing (4/15/2026 - 5/15/2026) MLV 26-3 Relocation: Highway 59 Widening (M) (4/14/2026 - 5/4/2026)
Carthage Lateral (segment 700
296
180
(116)
MLV 706-1 to MLV 700-1: Pig Run - Caliper 5/14/26 (M) (5/14/2026)
MLV 706-1 to MLV 700-1: Pig Run - Cleaning 5/12/26 (M) (5/12/2026) MLV 706-1 to MLV 700-1: Pig Run - Cleaning 5/7/26 (M) (5/7/2026)
1020
(323)
1045
(298)
MLV 47-4D to MLV 54-4S: Pig Run - AFD Combo (M) (5/15/2026) MLV 47-4D to MLV 54-4S: Pig Run - EMAT (M) (5/18/2026)
MLV 47-4D to MLV 54-4S: Pig Run - Gauge Cleaning (M) (5/11/2026) MLV 47-4D to MLV 54-4S: Pig Run - Gauge Cleaning (M) (5/12/2026) MLV 47-4D to MLV 54-4S: Pig Run - Gauge Cleaning (M) (5/13/2026)
Sta. 47: Station Transformer Maintenance (5/4/2026 - 5/5/2026)
MLV 822 West
(segment 820 FH)
724
150
(574)
MLV 820-1 to MLV 821R-101.1: Pig Run - Maintenance (M) (5/6/2026)
MLV 822 East
(segment 822 BH)
972
(822)
MLV 823-1 to MLV 821R-101.1: Pig Run - Maintenance (M) (5/5/2026)
640
(94)
Sta. 823 (Kinder): Annual ESD Test (5/5/2026 - 5/7/2026)
504
(179)
Sta 834 to Sta 827: Maintenance Pig (5/21/2026)
Sta 834: Unit 1A - Replace Insulation Blanket (5/5/2026 - 5/6/2026) Sta 834: Unit 2A - Replace Insulation Blanket (5/7/2026 - 5/8/2026) Sta 834: Unit 3A - Replace Insulation Blanket (5/12/2026 - 5/13/2026) Sta 834: Unit 4A - Replace Insulation Blanket (5/14/2026 - 5/15/2026)
Station 534 South of Pool (segment 530
1390
(203)
Sta 555: Scrubber/Filter/Separator Clean, Inspect & Filter Change (5/4/2026 - 5/8/2026)
1630
(244)
Sta 860: Annual ESD Test & Maintenance (5/13/2026 - 5/14/2026)
2428
(257)
2196
(489)
MLV 87-3 to MLV 96-3: Pig Run - AFD (5/19/2026)
MLV 87-3 to MLV 96-3: Pig Run - Cleaning/Gauge (5/14/2026) MLV 87-3 to MLV 96-3: Pig Run - EMAT (5/21/2026)
Sta 110 Morehead: Annual ESD Test & Substation Inspection (5/18/2026 - 5/22/2026)
Sta 87: Unit 3D - Power side Overhaul (4/27/2026 - 7/30/2026)
600
(307)
MLV 119-1 to MLV 121-1: Anomaly Remediation (4/13/2026 - 5/22/2026) Sta 114 Catlettsburg: Annual ESD Test (5/18/2026 - 5/20/2026)
1660
(168)
1270
(558)
MLV 204-4 to MLV 206-4: Replace MLV 205-4 (M) (5/27/2026 - 6/10/2026)
MLV 205-4 to MLV 207-4: Replace MLV 206-4 (M) (5/27/2026 - 6/10/2026) MLV 206-4 to MLV 208-4: Replace MLV 207-4 (M) (5/27/2026 - 6/10/2026)
MLV 207-4 to MLV 209-4: Replace Valve MLV 208-4 (M) (5/27/2026 - 6/10/2026) MLV 213-1A to MLV 213-1BR: SPECIAL PERMIT REPLACEMENT TGP 213-1
MLV 214-2 to MLV 219-2: Pig Run - EMAT (M) (5/6/2026) MLV 214-2 to MLV 219-2: Pig Run - MFL-C (M) (5/4/2026)
735
(251)
490
(496)
(266)
MLV 237-2 to MLV 245-2: Pig Run - CAL/IMU (M) (5/14/2026)
MLV 237-2 to MLV 245-2: Pig Run - Gauge/Cleaning Tool (M) (5/12/2026) MLV 237-2 to MLV 245-2: Pig Run - MFL-A (M) (5/18/2026)
Sta 245 West Winfield: Annual ESD Test & Maintenance (4/30/2026 - 5/8/2026) Sta 249: ESD Test & Maintenance (5/19/2026 - 5/25/2026)
Sta 249: Unit 2A - Crankcase Inspection (5/4/2026 - 5/8/2026)
925
630
(573)
MLV 254-2 to MLV 261-2: Pig Run - Cal/IMU/MFL-A Combo (5/28/2026)
MLV 254-2 to MLV 261-2: Pig Run - Gauge/Cleaning tool (5/27/2026) Sta 254 Nassau: Annual ESD Test (5/12/2026)
Sta 254: Unit 2B - 4k / 8k Service Inspection (5/13/2026 - 5/14/2026)
Station 321
(segment 321 FH)
2,102
1820
(282)
Sta. 323A Lackawaxen: Annual ESD Testing & Valve Replacement (5/4/2026 - 5/7/2026)
Sta. 323A: Unit 1A - ABB Drive Modernization (5/4/2026 - 5/22/2026)
(3)
MLV 341-1 to MLV 342-1: Anomaly Remediation (5/1/2026 - 5/5/2026) MLV 342-1 to MLV 343-1: Anomaly Remediation (5/6/2026 - 5/10/2026) MLV 343-1 to MLV 344-1: Anomaly Remediation (5/11/2026 - 5/15/2026)
MLV 344-1 to MLV 345-1: Anomaly Remediation (5/16/2026 - 5/20/2026)
Station 261
South 300 Line
(segment 355 FH)
221
215
(6)
MLV 345-1 to MLV 346-1: Anomaly Remediation (M) (5/21/2026 - 5/25/2026) MLV 346-1 to MLV 347-1: Anomaly Remediation (5/26/2026 - 5/30/2026) MLV 347-1 to MLV 348-1: Anomaly Remediation (5/31/2026 - 6/4/2026)
Cranston Lateral South
(segment 281
187
(37)
MLV 265E-101.1 to MLV 265E-104: PIG RUNS - Cal/IMU (M) (5/6/2026)
MLV 265E-101.1 to MLV 265E-104: PIG RUNS - Gauge/Cleaning tool (M) (5/5/2026)
MLV 265E-101.1 to MLV 265E-104: PIG RUNS - MFL-A (M) (5/7/2026)
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