-Primary impact restrictions may be necessary
TGP - Outage Impact Report
-Major impact restrictions may be necessary
Seven Day Forecast (updated 10/30/25)
-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
(11/3)
Tuesday
(11/4)
Wednesday
(11/5)
Thursday
(11/6)
Friday
(11/7)
Saturday
(11/8)
Sunday
(11/9)
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
125
(313)
MLV 404-2 to MLV 405-2: Anomaly Remediation (M) (10/29/2025 - 11/3/2025)
MLV 403-2 to MLV 404-2: Anomaly Remediation (M) (11/3/2025 - 11/14/2025)
Station 9
(segment 109 BH)
1,066
Station 17
(segment 117 FH)
1,143
1130
(13)
MLV 17-1D to MLV 18-1: Anomaly Remediation (11/3/2025 - 11/21/2025)
Station 25
(segment 125 FH)
1,101
1087
(14)
Sta 25: Unit 1C - VFD Replacement (7/16/2025 - 10/31/2026)
Station 40 South
(segment 132 FH)
1,299
1286
MLV 32-3D to MLV 40-3S: Pig Runs - Maintenance (11/4/2025)
Station 47
(segment 143 FH)
1,354
1200
(154)
1250
(104)
MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025) MLV 47-2A to MLV 48-2: Pipe Replacement (M) (11/1/2025 - 11/12/2025) Sta 47: Unit 1D - Flush & Clean Cooling Systems (11/3/2025 - 11/6/2025) Sta 47: Unit 2D - Flush & Clean Cooling Systems (11/3/2025 - 11/6/2025)
Sta 54: Unit 6B - Power Overhaul (10/1/2025 - 11/24/2025)
Sta 54: Unit 8B - Power Overhaul (10/1/2025 - 11/24/2025)
Station 63
(segment 163 FH)
1,287
1185
(102)
810
(477)
1187
(100)
MLV 63-4D to MLV 71-4S: Pig Runs - EMAT 11/6/25 (11/6/2025) MLV 63-4D to MLV 71-4S: Pig Runs - MFL-C 11/4/25 (11/4/2025)
MLV 64-2 to MLV 65-2: Immediate Anomaly Remediation (10/8/2025 - 11/15/2025)
MLV 84-4 to MLV 85-4: Class Change Pipe Replacement (9/26/2025 -
11/3/2025)
Station 823
(segment 823 BH)
759
580
(179)
145
(614)
Sta 827 to Sta 823: Pig Run - Maintenance (M) (11/5/2025) Sta 834 to Sta 827: Maintenance Pig (M) (11/5/2025)
Station 827 (Alexandria): Station Recycle Valve (11/4/2025 - 11/6/2025)
Station 834
(segment 834 BH)
733
718
(15)
Sta 834: Unit 6A - Overhaul (3/3/2025 - 1/2/2026)
Station 534 South of Pool (segment 530 BH)
1,632
1294
(338)
Sta 530: Unit 1A - Bearings (8/25/2025 - 3/31/2026) Sta 530: Unit 2A - Bearings (8/26/2025 - 12/31/2025)
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 530: Unit 8A - Power Cylinders (9/23/2025 - 12/31/2025)
Sta 534: Unit 6A - Piston Liner & Unloader Replacements (3/25/2025 - 12/31/2025)
Sta 534: Unit 7A - Piston / Liner (5/20/2025 - 12/5/2025)
MLV 548
(segment 542 BH)
1,771
1735
(36)
Sta 546: Unit 4A - Engine and Compressor Overhaul (11/3/2025 - 12/12/2025) Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 12/5/2025)
Station 860
(segment 548 BH)
1,697
1681
(16)
1585
(112)
980
(717)
MLV 546-1 to MLV 542-1: Pig Runs - Maintenance (11/5/2025) MLV 546-2 to MLV 542-2: Pig Runs - Maintenance (11/6/2025) MLV 546-3 to MLV 544-3: Pig Runs - Maintenance (11/4/2025) Sta 550: Unit 2A - Compressor Overhaul (8/25/2025 - 12/5/2025)
Sta 555: Unit 1A - Engine Maintenance (11/3/2025 - 11/7/2025)
Station 860 North (Segment 860 BH)
2,028
1920
(108)
1930
(98)
1935
(93)
MLV 861-1 to MLV 862-1: Install New 30" Valve 861-1A (11/6/2025 - 11/12/2025)
Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2025)
Sta 860: Unit 1C - 4K Turbine Water Wash (11/3/2025 - 11/4/2025) Sta 860: Unit 1C - Engine Inspection/Condition Assessment (11/3/2025 -
11/4/2025)
Sta 860: Unit 2C - 4K Turbine Water Wash (11/5/2025 - 11/6/2025) Sta 860: Unit 2C - Engine Inspection/Condition Assessment (11/5/2025 -
11/6/2025)
Station 110
(segment 187 BH)
(south thru Kentucky)
2,775
2550
(225)
2175
(600)
2560
(215)
MLV 108-2 to MLV 109-2: Special Permit Pipe Replacement (M) (11/1/2025 - 11/30/2025)
MLV 87-4 to MLV 96-4: Pig Runs - Caliper 11/6/25 (M) (11/6/2025) MLV 87-4 to MLV 96-4: Pig Runs - Cleaning / Gauge 11/4/25 (M) (11/4/2025)
MLV 90-3 to MLV 91-3: HDD River Crossing Replacement (10/23/2025 - 11/19/2025)
MLV 96-4 to MLV 97-4: Anomaly Remediation (9/25/2025 - 11/14/2025) Sta 106: Unit 1C - Replace Power Cylinder Bearing #7 (4/14/2025 - 11/14/2025)
Sta 87: Unit 2E - Turbocharger Replacement (10/27/2025 - 11/21/2025) Sta 87: Unit 8C - Install Governor (11/3/2025 - 11/7/2025)
Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 1/30/2026)
Station 114
(segment 114 BH)
948
Station 204
(Segment 204 BH)
1,895
1732
(163)
1432
(463)
MLV 209-4 to MLV 204-4: Pig Runs - Cal & IMU 11/04/25 (M) (11/4/2025) MLV 209-4 to MLV 204-4: Pig Runs - MFL-A 11/06/25 (M) (11/6/2025)
MLV 213-2A to MLV 214-2: Special Permit Replacement (10/9/2025 -
11/19/2025)
Station 245
(segment 245 FH)
1,063
Station 261 Discharge East (segment 261
FH)
1,045
970
(75)
Sta 261 Agawam: Unit 5A - Change Valve (M) (11/5/2025 - 11/6/2025)
Station 267 South (segment 266
503
346
(157)
Sta 267: Bldg A Controls Upgrade (9/2/2025 - 11/26/2025)
Station 307
(segment 307 BH)
1,202
1145
(57)
Sta 307: Unit 2A - Engine Maintenance (11/3/2025 - 11/7/2025)
Station 315
(segment 315 BH)
1,915
MLV 324
(segment 324 FH)
1,885
1635
(250)
Sta 325: Unit 3A - Engine ESD Valve (10/2/2025 - 11/3/2025) Sta 325: Units 4A - Vibration (9/8/2025 - 11/3/2025)
Station 405 HC Line (segment 299
827
Station 224
(segment 224 FH)
399
205
(194)
Sta 229: Automation Upgrade & Maintenance (M) (8/11/2025 - 11/7/2025)
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.
November 2025 (updated 10/30/25)
Station # / Lateral
Est Nominal Operating Capacity (Thousand Dth)
Week 1
(11/3 - 11/9)
Week 2
(11/10 - 11/16)
Week 3
(11/17 - 11/23)
Week 4
(11/24 - 11/30)
Primary Outage(s)
Station 409A (Alamo) (segment 492
295
(150)
MLV 409A-901 to MLV 409A-902: Pig Run - Cleaning 11/18/25 (M) (11/18/2025) MLV 409A-901 to MLV 409A-902: Pig Run - MFL-A 11/19/25 (M) (11/19/2025)
Station 409 (Donna Line) (segment 490
MLV 4
(segment 101 FH)
1,033
MLV 1-2BL to MLV 1-2A: GCX Expansion Hot Tap/Tie in (M) (11/18/2025 - 11/21/2025)
MLV 26-1 Relocation: Highway 59 Widening (11/11/2025 - 12/10/2025) Sta 25: Unit 1C - VFD Replacement (7/16/2025 - 10/31/2026)
Station 40 KN South (segment 501
285
100
(185)
Sta 500-1 to Sta 823 (MLV 507-1): Pig Run - Maintenance (M) (11/11/2025)
890
(464)
MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025) MLV 47-2A to MLV 48-2: Pipe Replacement (M) (11/1/2025 - 11/12/2025) MLV 47-3A to MLV 48-3: Pipe Replacement (11/25/2025 - 12/10/2025) MLV 47-4A to MLV 48-4: Pipe Replacement (M) (11/13/2025 - 11/24/2025)
MLV 53-3BR to MLV 54-3BL: HydroTest (11/19/2025 - 12/16/2025)
Sta 54: Unit 6B - Power Overhaul (10/1/2025 - 11/24/2025) Sta 54: Unit 8B - Power Overhaul (10/1/2025 - 11/24/2025)
1135
(152)
MLV 65-2 to MLV 66-2: Immediate Anomaly Remediation (11/17/2025 - 11/30/2025)
MLV 66-2 to MLV 67-2: Immediate Anomaly Remediation (11/17/2025 - 11/30/2025)
MLV 71-1D to MLV 77-1A: Pig Re-Runs - MDS 11/12/25 (11/12/2025)
Station 542
(segment 539 BH)
1,905
1865
(40)
Sta 542: Unit 1B - Safety Device Testing (11/10/2025 - 11/14/2025)
Sta 550: Unit 2A - Compressor Overhaul (8/25/2025 - 12/5/2025)
1800
(228)
Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2025) Sta. 860: A Building - replace discharge valves (11/11/2025 - 11/12/2025)
2540
(235)
2625
MLV 87-4 to MLV 96-4: Pig Runs - AFD Combo 11/11/25 (M) (11/11/2025) MLV 87-4 to MLV 96-4: Pig Runs - EMAT 11/13/25 (M) (11/13/2025)
MLV 96-4 to MLV 97-4: Anomaly Remediation (9/25/2025 - 11/14/2025) Sta 106 Clay City: Upgrade B Building Jacket Water System (11/14/2025 - 12/5/2025)
Sta 106: Unit 1C - Replace Power Cylinder Bearing #7 (4/14/2025 - 11/14/2025) Sta 87: Unit 2E - Turbocharger Replacement (10/27/2025 - 11/21/2025)
1459
(436)
1419
(476)
MLV 213-2A to MLV 214-2: Special Permit Replacement (10/9/2025 - 11/19/2025)
MLV 219-4 to MLV 214-4: Pig Run - Cleaning/Gauge 11/11/25 (M) (11/11/2025) MLV 219-4 to MLV 214-4: Pig Run - EMAT 11/20/25 (M) (11/20/2025)
MLV 219-4 to MLV 214-4: Pig Run - IMU/Caliper 11/13/25 (M) (11/13/2025) MLV 219-4 to MLV 214-4: Pig Run - MFL-C 11/18/25 (M) (11/18/2025)
Sta 209: Unit 12A - P3L pull piston and inspect rings and cylinder (11/10/2025 - 11/13/2025)
December 2025 (updated 10/30/25)
(12/1 - 12/7)
(12/8 - 12/14)
(12/15 - 12/21)
(12/22 - 12/28)
1075
(26)
MLV 26-1 Relocation: Highway 59 Widening (11/11/2025 - 12/10/2025) MLV 26-1 to MLV 27-1: Install Road Casing (12/6/2025 - 1/19/2026) MLV 26-2 Relocation: Highway 59 Widening (12/11/2025 - 1/19/2026)
910
(389)
MLV 32-2D TO MLV 40-2S: Pig Runs - Maintenance (12/2/2025)
895
(459)
950
(404)
1349
(5)
MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025) MLV 47-3A to MLV 48-3: Pipe Replacement (11/25/2025 - 12/10/2025)
Station 847
(segment 847 BH)
338
200
(138)
MLV 856-1 to MLV 860-1: Pig Runs - Cal / IMU 12/9/25 (12/9/2025)
MLV 856-1 to MLV 860-1: Pig Runs - Cleaning / Gauge 12/4/25 (12/4/2025) MLV 856-1 to MLV 860-1: Pig Runs - MFL-C 12/11/25 (12/11/2025)
1425
(207)
1736
(35)
Sta 550: Unit 2A - Compressor Overhaul (8/25/2025 - 12/5/2025) Sta 550: Unit 3A - Turbocharger Exchange (12/8/2025 - 12/19/2025)
Station 860 North (Segment 860
BH)
2000
(28)
(south thru
Kentucky)
2600
(175)
2645
(130)
Sta 106 Clay City: Upgrade B Building Jacket Water System (11/14/2025 - 12/5/2025)
Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 1/30/2026) Sta 96: Unit 1D - Compressor Valves (12/1/2025 - 12/12/2025)
1722
(173)
MLV 204-2 to MLV 200-2: Pig Runs - EMAT 12/18/25 (M) (12/18/2025) MLV 204-2 to MLV 200-2: Pig Runs - MFL-C 12/16/25 (M) (12/16/2025)
January 2026 (updated 10/30/25)
(12/29 - 1/4)
(1/5 - 1/11)
(1/12 - 1/18)
(1/19 - 1/25)
Week 5
(1/26 - 2/1)
855
(246)
MLV 26-1 to MLV 27-1: Install Road Casing (12/6/2025 - 1/19/2026) MLV 26-2 Relocation: Highway 59 Widening (12/11/2025 - 1/19/2026) MLV 26-3 Relocation: Highway 59 Widening (M) (1/20/2026 - 2/19/2026)
MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025)
1610
(22)
2535
(240)
Sta 871: Unit 1A - 3Q Engine Inspection (12/31/2025) Sta 871: Unit 2A - 3Q Engine Inspection (12/31/2025)
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.
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