Southern Natural Gas Notice 710888

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All information here is provided as a service and information is not guaranteed to be accurate. PipeRiv is not responsible for any incorrect information.

TSP/TSP Name: 6900518-SOUTHERN NATURAL GAS CO.	Critical: Y
Notice Type Desc (1): MAINTENANCE	Notice Type Desc (2): MAINTENANCE
Notice Eff Date/Time: 06/26/2025 3:22:46PM	Notice End Date/Time: 06/27/2025 9:00:00am
Post Date/Time: 6/26/2025 3:22:46 PM	Notice ID: 710888
Reqrd Rsp: 1	Rsp Date: 06/26/2025
Notice Stat Desc: INITIATE	Prior Notice:
Subject: Outage Impact Report

Notice Text:

-Restrictions to Primary In-Path transportation services may be necessary.

SNG - Outage Impact Report

-Restrictions to In-Path transportation services may be necessary.

Seven Day Forecast (updated 06/26/25)

-Restrictions to Interruptible and Out of Path transportation services may be necessary.

-No anticipated impact to transportation services.

Station / Seg

Est Nominal Design Capacity (Thousand Dth)

Monday (6/30)

Tuesday (7/1)

Wednesday (7/2)

Thursday (7/3)

Friday (7/4)

Saturday (7/5)

Sunday (7/6)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

203

203

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

346

346

White Castle (segment 340)

772

772

Sesh (segment 380)

507

507

Gwinville (segment 400)

234

234

Enterprise (segment 430)

2,306

2051

(255)

2051

(255)

2051

(255)

2051

(255)

2051

(255)

2051

(255)

2051

(255)

Enterprise Compressor Station: Unscheduled Unit Maintenance Proj-522211 (6/5/2025 - 7/27/2025)

Enterprise Compressor Station: Unscheduled Unit Maintenance Proj-522213 (6/11/2025 - 7/6/2025)

Selma (segment 460)

2,293

2128

(165)

2128

(165)

2128

(165)

2128

(165)

2128

(165)

2128

(165)

2128

(165)

Selma Compressor Station: Scheduled Unit Maintenance Proj-52451 (5/8/2025 - 7/23/2025)

Ellerslie (segment 490)

1,547

1,547

South Atlanta (segment 510)

522

522

Thomaston East (segment 530)

849

849

East/South Wrens (segment 560)

680

585

(95)

585

(95)

585

(95)

585

(95)

585

(95)

585

(95)

585

(95)

Wrens Compressor Station: Unscheduled Station Maintenance Proj-52884 (6/19/2025 - 7/6/2025)

Cypress- Brunswick (Segment 600)

456

396

(60)

396

(60)

396

(60)

396

(60)

396

(60)

396

(60)

396

(60)

Brookman Compressor Station: Unscheduled Unit Maintenance Proj-55081 (6/23/2025 - 7/6/2025)

South Georgia (segment 650)

127

127

Albany (segment 660)

(15)

Albany Compressor Station: Unscheduled Unit Maintenance Proj-58173 (6/13/2025 - 7/13/2025)

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.

							-Restrictions to Primary In-Path transportation services may be necessary.
		SNG - Outage Impact Report					-Restrictions to In-Path transportation services may be necessary.
		July 2025 (updated 06/26/25)					-Restrictions to Interruptible and Out of Path transportation services may be necessary.
							-No anticipated impact to transportation services.
Station / Seg	Est Nominal Design 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 / Seg		Est. Operational Capacity (Operational Impact) - Thousand Dth					Primary Outage(s)
							North Main 2nd loop line west of Onward: Scheduled Pipeline Maintenance(PT), Proj-SNG-15323
Onward (segment 30)	203		203	203	178 (25)	178 (25)	(7/22/2025 - 8/15/2025)
Duncanville Lateral (segment 90)	36		36	36	36	36
Dearmanville (segment 150)	346		346	346	346	346
White Castle (segment 340)	772		772	772	772	772
Sesh (segment 380)	507		507	507	507	507
							Franklinton Gwinville 2nd Loop Line south of Gwinville: Scheduled Pipeline Maintenance,
Gwinville Pool (segment 390)	1,607		1377 (230)	1377 (230)	1377 (230)	1,607	Proj-SNG-36213 (7/9/2025 - 7/24/2025)
Gwinville (segment 400)	234		234	234	234	234
							Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-52161 (7/8/2025 - 10/31/2028)
Bay Springs (segment 420)	1,675		1595 (80)	1595 (80)	1595 (80)	1595 (80)
							Enterprise Compressor Station: Scheduled Unit Maintenance, Proj-522213 (7/28/2025 - 8/17/2025)
							Enterprise Compressor Station: Unscheduled Unit Maintenance, Proj-522211 (6/5/2025 - 7/27/2025)
Enterprise (segment 430)	2,306		2111 (195)	2111 (195)	2111 (195)	2111 (195)	Enterprise Compressor Station: Unscheduled Unit Maintenance, Proj-522211 (7/8/2025 - 7/27/2025)
							Selma Compressor Station: Scheduled Unit Maintenance , Proj-52451 (5/8/2025 - 7/23/2025)
Selma (segment 460)	2,293		2128 (165)	2128 (165)	2128 (165)	2,293
Ellerslie (segment 490)	1,547		1,547	1,547	1,547	1,547
South Atlanta (segment 510)	522		522	522	522	522
Thomaston East (segment 530)	849		849	849	849	849
							Ocmulgee Compressor Station: Scheduled Unit Maintenance, Proj-52775 (7/7/2025 - 7/11/2025)
Ocmulgee (segment 530)	804		654 (150)	804	804	804
South Georgia (segment 650)	127		127	127	127	127
							Albany Compressor Station: Unscheduled Unit Maintenance, Proj-58173 (6/13/2025 - 7/13/2025)
Albany (segment 660)	77		62 (15)	77	77	77
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.

						-Restrictions to Primary In-Path transportation services may be necessary.
		SNG - Outage Impact Report				-Restrictions to In-Path transportation services may be necessary.
	August 2025 (updated 06/26/25)					-Restrictions to Interruptible and Out of Path transportation services may be necessary.
-No anticipated impact to transportation services.
Station / Seg	Est Nominal Design Capacity (Thousand Dth)	Week 1 (8/4 - 8/10)	Week 2 (8/11 - 8/17)	Week 3 (8/18 - 8/24)	Week 4 (8/25 - 8/31)	Primary Outage(s)
Station / Seg		Est. Operational Capacity (Operational Impact) - Thousand Dth				Primary Outage(s)
						North Main 2nd loop line west of Onward: Scheduled Pipeline Maintenance(PT), Proj-SNG-15323
Onward (segment 30)	203	178 (25)	178 (25)	203	203	(7/22/2025 - 8/15/2025)
Duncanville Lateral (segment 90)	36	36	36	36	36
Dearmanville (segment 150)	346	346	346	346	346
White Castle (segment 340)	772	772	772	772	772
Sesh (segment 380)	500	500	500	500	500
Gwinville (segment 400)	234	234	234	234	234
						Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-52161 (7/8/2025 - 10/31/2028)
Bay Springs (segment 420)	1,675	1595 (80)	1595 (80)	1595 (80)	1595 (80)
						Enterprise Compressor Station: Scheduled Unit Maintenance, Proj-522213 (7/28/2025 - 8/17/2025)
Enterprise (segment 430)	2,306	2111 (195)	2111 (195)	2,306	2,306
						South Main 2nd Loop Line east of Gallion: Scheduled Pipeline Maintenance, Proj-SNG-8793 (8/8/2025 -
Gallion (Segment 440)	2,300	2195 (105)	2195 (105)	2195 (105)	2,300	8/22/2025)
						South Main 2nd Loop Line east of Selma: Scheduled Pipeline Maintenance, Proj-SNG-8793 (8/22/2025 -
Selma (segment 460)	2,293	2,293	2,293	2158 (135)	2158 (135)	9/5/2025)
Ellerslie (segment 490)	1,547	1,547	1,547	1,547	1,547
South Atlanta (segment 510)	522	522	522	522	522
Thomaston East (segment 530)	849	849	849	849	849
						South Main loop AUX line east of Wrens: Scheduled Pipeline Maintenance, Proj-SNG-37905 (8/4/2025 -
Wrens to Aiken (Segment 570)	444	269 (175)	269 (175)	444	444	8/14/2025)
South Georgia (segment 650)	127	127	127	127	127
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.

-Restrictions to Primary In-Path transportation services may be necessary.

SNG - Outage Impact Report

-Restrictions to In-Path transportation services may be necessary.

September 2025 (updated 06/26/25)

-Restrictions to Interruptible and Out of Path transportation services may be necessary.

-No anticipated impact to transportation services.

Station / Seg

Est Nominal Design Capacity (Thousand Dth)

Week 1 (9/1 - 9/7)

Week 2 (9/8 - 9/14)

Week 3 (9/15 - 9/21)

Week 4 (9/22 - 9/28)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

203

203

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

346

346

White Castle (segment 340)

772

772

Duck Lake Franklinton Line north of White Castle: Pipeline Maintenance, Proj-SNG-2933 (9/15/2025 -

LA West Leg (segment 350)

695

695

675

(20)

675

(20)

9/30/2025)

Sesh (segment 380)

500

500

Gwinville (segment 400)

234

234

Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-52161 (7/8/2025 - 10/31/2028)

Bay Springs (segment 420)

1,675

1595

(80)

1595

(80)

1595

(80)

1595

(80)

Enterprise (segment 430)

2,306

2,306

South Main 2nd Loop Line east of Selma: Scheduled Pipeline Maintenance, Proj-SNG-8793 (8/22/2025 -

Selma (segment 460)

2,293

2158

(135)

2,293

9/5/2025)

Elmore Compressor Station: Scheduled Unit Maintenance, Proj-525112 (9/15/2025 - 9/26/2025)

Elmore (segment 460)

2,010

2,010

1755

(255)

1755

(255)

Ellerslie (segment 490)

1,547

1,547

South Atlanta (segment 510)

522

522

Thomaston East (segment 530)

849

849

South Georgia (segment 650)

127

127

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.

-Restrictions to Primary In-Path transportation services may be necessary.

SNG - Outage Impact Report

-Restrictions to In-Path transportation services may be necessary.

October 2025 (updated 06/26/25)

-Restrictions to Interruptible and Out of Path transportation services may be necessary.

-No anticipated impact to transportation services.

Station / Seg

Est Nominal Design Capacity (Thousand Dth)

Week 1 (9/29 - 10/5)

Week 2 (10/6 - 10/12)

Week 3 (10/13 - 10/19)

Week 4 (10/20 - 10/26)

Week 5 (10/27 - 11/2)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

203

203

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

346

346

White Castle (segment 340)

772

772

LA West Leg (segment 350)

798

540

(258)

540

(258)

540

(258)

540

(258)

540

(258)

Duck Lake Franklinton Line north of White Castle: Pipeline Maintenance, Proj-SNG-2933 (9/15/2025 - 9/30/2025)

White Castle Franklinton loop line north of White Castle: Pipeline Maintenance(replacement), Proj-SNG-2933/SNG-3089 (10/1/2025 - 10/31/2025)

Sesh (segment 380)

500

500

Gwinville (segment 400)

234

234

Bay Springs (segment 420)

1,675

1595

(80)

1595

(80)

1595

(80)

1595

(80)

1595

(80)

Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-52161 (7/8/2025 - 10/31/2028)

Enterprise (segment 430)

2,306

2,306

Gallion (Segment 440)

2,300

2030

(270)

2030

(270)

2030

(270)

2,300

Gallion Compressor Station: Scheduled Unit Maintenance, Proj-523610 (9/29/2025 - 10/17/2025)

Auburn (segment 460)

1,953

1693

(260)

1693

(260)

1693

(260)

1693

(260)

1693

(260)

Auburn Compressor Station: Scheduled Unit Maintenance, Proj-52593 (9/29/2025 - 10/31/2025)

Ellerslie (segment 490)

1,547

1192

(355)

1192

(355)

1467

(80)

1467

(80)

1,547

South Main 2nd loop line east of Ellerslie: Scheduled Pipeline Maintenance, Proj-SNG-2570p2 (10/2/2025 - 10/12/2025)

South Main loop line east of Ellerslie: Scheduled Pipeline Maintenance, Proj-SNG-2782 (10/13/2025 - 10/24/2025)

South Main loop line/South Main 2nd loop line east of Ellerslie: Scheduled Pipeline Maintenace, Proj- SNG-2570p1 (9/29/2025 - 10/1/2025)

South Atlanta (segment 510)

522

522

Thomaston East (segment 530)

849

849

Hall Gate (segment 560)

705

705

655

(50)

655

(50)

705

Wrens Compressor Station: Scheduled Station Maintenance, Proj-52882 (10/6/2025 - 10/17/2025) Wrens Compressor Station: Scheduled Station Maintenance, Proj-52883 (10/6/2025 - 10/17/2025)

South Georgia (segment 650)

127

127

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.

TSP/TSP Name: 6900518-SOUTHERN NATURAL GAS CO.	Critical: Y
Notice Type Desc (1): MAINTENANCE	Notice Type Desc (2): MAINTENANCE
Notice Eff Date/Time: 06/26/2025 3:22:46PM	Notice End Date/Time: 06/27/2025 9:00:00am
Post Date/Time: 6/26/2025 3:22:46 PM	Notice ID: 710888
Reqrd Rsp: 1	Rsp Date: 06/26/2025
Notice Stat Desc: INITIATE	Prior Notice:
Subject: Outage Impact Report

Notice Text:

-Restrictions to Primary In-Path transportation services may be necessary.

SNG - Outage Impact Report

-Restrictions to In-Path transportation services may be necessary.

Seven Day Forecast (updated 06/26/25)

-Restrictions to Interruptible and Out of Path transportation services may be necessary.

-No anticipated impact to transportation services.

Station / Seg

Est Nominal Design Capacity (Thousand Dth)

Monday (6/30)

Tuesday (7/1)

Wednesday (7/2)

Thursday (7/3)

Friday (7/4)

Saturday (7/5)

Sunday (7/6)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

203

203

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

346

346

White Castle (segment 340)

772

772

Sesh (segment 380)

507

507

Gwinville (segment 400)

234

234

Enterprise (segment 430)

2,306

2051

(255)

2051

(255)

2051

(255)

2051

(255)

2051

(255)

2051

(255)

2051

(255)

Enterprise Compressor Station: Unscheduled Unit Maintenance Proj-522211 (6/5/2025 - 7/27/2025)

Enterprise Compressor Station: Unscheduled Unit Maintenance Proj-522213 (6/11/2025 - 7/6/2025)

Selma (segment 460)

2,293

2128

(165)

2128

(165)

2128

(165)

2128

(165)

2128

(165)

2128

(165)

2128

(165)

Selma Compressor Station: Scheduled Unit Maintenance Proj-52451 (5/8/2025 - 7/23/2025)

Ellerslie (segment 490)

1,547

1,547

South Atlanta (segment 510)

522

522

Thomaston East (segment 530)

849

849

East/South Wrens (segment 560)

680

585

(95)

585

(95)

585

(95)

585

(95)

585

(95)

585

(95)

585

(95)

Wrens Compressor Station: Unscheduled Station Maintenance Proj-52884 (6/19/2025 - 7/6/2025)

Cypress- Brunswick (Segment 600)

456

396

(60)

396

(60)

396

(60)

396

(60)

396

(60)

396

(60)

396

(60)

Brookman Compressor Station: Unscheduled Unit Maintenance Proj-55081 (6/23/2025 - 7/6/2025)

South Georgia (segment 650)

127

127

Albany (segment 660)

(15)

Albany Compressor Station: Unscheduled Unit Maintenance Proj-58173 (6/13/2025 - 7/13/2025)

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

							-Restrictions to Primary In-Path transportation services may be necessary.
		SNG - Outage Impact Report					-Restrictions to In-Path transportation services may be necessary.
		July 2025 (updated 06/26/25)					-Restrictions to Interruptible and Out of Path transportation services may be necessary.
							-No anticipated impact to transportation services.
Station / Seg	Est Nominal Design 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 / Seg		Est. Operational Capacity (Operational Impact) - Thousand Dth					Primary Outage(s)
							North Main 2nd loop line west of Onward: Scheduled Pipeline Maintenance(PT), Proj-SNG-15323
Onward (segment 30)	203		203	203	178 (25)	178 (25)	(7/22/2025 - 8/15/2025)
Duncanville Lateral (segment 90)	36		36	36	36	36
Dearmanville (segment 150)	346		346	346	346	346
White Castle (segment 340)	772		772	772	772	772
Sesh (segment 380)	507		507	507	507	507
							Franklinton Gwinville 2nd Loop Line south of Gwinville: Scheduled Pipeline Maintenance,
Gwinville Pool (segment 390)	1,607		1377 (230)	1377 (230)	1377 (230)	1,607	Proj-SNG-36213 (7/9/2025 - 7/24/2025)
Gwinville (segment 400)	234		234	234	234	234
							Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-52161 (7/8/2025 - 10/31/2028)
Bay Springs (segment 420)	1,675		1595 (80)	1595 (80)	1595 (80)	1595 (80)
							Enterprise Compressor Station: Scheduled Unit Maintenance, Proj-522213 (7/28/2025 - 8/17/2025)
							Enterprise Compressor Station: Unscheduled Unit Maintenance, Proj-522211 (6/5/2025 - 7/27/2025)
Enterprise (segment 430)	2,306		2111 (195)	2111 (195)	2111 (195)	2111 (195)	Enterprise Compressor Station: Unscheduled Unit Maintenance, Proj-522211 (7/8/2025 - 7/27/2025)
							Selma Compressor Station: Scheduled Unit Maintenance , Proj-52451 (5/8/2025 - 7/23/2025)
Selma (segment 460)	2,293		2128 (165)	2128 (165)	2128 (165)	2,293
Ellerslie (segment 490)	1,547		1,547	1,547	1,547	1,547
South Atlanta (segment 510)	522		522	522	522	522
Thomaston East (segment 530)	849		849	849	849	849
							Ocmulgee Compressor Station: Scheduled Unit Maintenance, Proj-52775 (7/7/2025 - 7/11/2025)
Ocmulgee (segment 530)	804		654 (150)	804	804	804
South Georgia (segment 650)	127		127	127	127	127
							Albany Compressor Station: Unscheduled Unit Maintenance, Proj-58173 (6/13/2025 - 7/13/2025)
Albany (segment 660)	77		62 (15)	77	77	77
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.

						-Restrictions to Primary In-Path transportation services may be necessary.
		SNG - Outage Impact Report				-Restrictions to In-Path transportation services may be necessary.
	August 2025 (updated 06/26/25)					-Restrictions to Interruptible and Out of Path transportation services may be necessary.
-No anticipated impact to transportation services.
Station / Seg	Est Nominal Design Capacity (Thousand Dth)	Week 1 (8/4 - 8/10)	Week 2 (8/11 - 8/17)	Week 3 (8/18 - 8/24)	Week 4 (8/25 - 8/31)	Primary Outage(s)
Station / Seg		Est. Operational Capacity (Operational Impact) - Thousand Dth				Primary Outage(s)
						North Main 2nd loop line west of Onward: Scheduled Pipeline Maintenance(PT), Proj-SNG-15323
Onward (segment 30)	203	178 (25)	178 (25)	203	203	(7/22/2025 - 8/15/2025)
Duncanville Lateral (segment 90)	36	36	36	36	36
Dearmanville (segment 150)	346	346	346	346	346
White Castle (segment 340)	772	772	772	772	772
Sesh (segment 380)	500	500	500	500	500
Gwinville (segment 400)	234	234	234	234	234
						Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-52161 (7/8/2025 - 10/31/2028)
Bay Springs (segment 420)	1,675	1595 (80)	1595 (80)	1595 (80)	1595 (80)
						Enterprise Compressor Station: Scheduled Unit Maintenance, Proj-522213 (7/28/2025 - 8/17/2025)
Enterprise (segment 430)	2,306	2111 (195)	2111 (195)	2,306	2,306
						South Main 2nd Loop Line east of Gallion: Scheduled Pipeline Maintenance, Proj-SNG-8793 (8/8/2025 -
Gallion (Segment 440)	2,300	2195 (105)	2195 (105)	2195 (105)	2,300	8/22/2025)
						South Main 2nd Loop Line east of Selma: Scheduled Pipeline Maintenance, Proj-SNG-8793 (8/22/2025 -
Selma (segment 460)	2,293	2,293	2,293	2158 (135)	2158 (135)	9/5/2025)
Ellerslie (segment 490)	1,547	1,547	1,547	1,547	1,547
South Atlanta (segment 510)	522	522	522	522	522
Thomaston East (segment 530)	849	849	849	849	849
						South Main loop AUX line east of Wrens: Scheduled Pipeline Maintenance, Proj-SNG-37905 (8/4/2025 -
Wrens to Aiken (Segment 570)	444	269 (175)	269 (175)	444	444	8/14/2025)
South Georgia (segment 650)	127	127	127	127	127
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.

-Restrictions to Primary In-Path transportation services may be necessary.

SNG - Outage Impact Report

-Restrictions to In-Path transportation services may be necessary.

September 2025 (updated 06/26/25)

-Restrictions to Interruptible and Out of Path transportation services may be necessary.

-No anticipated impact to transportation services.

Station / Seg

Est Nominal Design Capacity (Thousand Dth)

Week 1 (9/1 - 9/7)

Week 2 (9/8 - 9/14)

Week 3 (9/15 - 9/21)

Week 4 (9/22 - 9/28)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

203

203

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

346

346

White Castle (segment 340)

772

772

Duck Lake Franklinton Line north of White Castle: Pipeline Maintenance, Proj-SNG-2933 (9/15/2025 -

LA West Leg (segment 350)

695

695

675

(20)

675

(20)

9/30/2025)

Sesh (segment 380)

500

500

Gwinville (segment 400)

234

234

Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-52161 (7/8/2025 - 10/31/2028)

Bay Springs (segment 420)

1,675

1595

(80)

1595

(80)

1595

(80)

1595

(80)

Enterprise (segment 430)

2,306

2,306

South Main 2nd Loop Line east of Selma: Scheduled Pipeline Maintenance, Proj-SNG-8793 (8/22/2025 -

Selma (segment 460)

2,293

2158

(135)

2,293

9/5/2025)

Elmore Compressor Station: Scheduled Unit Maintenance, Proj-525112 (9/15/2025 - 9/26/2025)

Elmore (segment 460)

2,010

2,010

1755

(255)

1755

(255)

Ellerslie (segment 490)

1,547

1,547

South Atlanta (segment 510)

522

522

Thomaston East (segment 530)

849

849

South Georgia (segment 650)

127

127

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.

-Restrictions to Primary In-Path transportation services may be necessary.

SNG - Outage Impact Report

-Restrictions to In-Path transportation services may be necessary.

October 2025 (updated 06/26/25)

-Restrictions to Interruptible and Out of Path transportation services may be necessary.

-No anticipated impact to transportation services.

Station / Seg

Est Nominal Design Capacity (Thousand Dth)

Week 1 (9/29 - 10/5)

Week 2 (10/6 - 10/12)

Week 3 (10/13 - 10/19)

Week 4 (10/20 - 10/26)

Week 5 (10/27 - 11/2)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

203

203

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

346

346

White Castle (segment 340)

772

772

LA West Leg (segment 350)

798

540

(258)

540

(258)

540

(258)

540

(258)

540

(258)

Duck Lake Franklinton Line north of White Castle: Pipeline Maintenance, Proj-SNG-2933 (9/15/2025 - 9/30/2025)

White Castle Franklinton loop line north of White Castle: Pipeline Maintenance(replacement), Proj-SNG-2933/SNG-3089 (10/1/2025 - 10/31/2025)

Sesh (segment 380)

500

500

Gwinville (segment 400)

234

234

Bay Springs (segment 420)

1,675

1595

(80)

1595

(80)

1595

(80)

1595

(80)

1595

(80)

Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-52161 (7/8/2025 - 10/31/2028)

Enterprise (segment 430)

2,306

2,306

Gallion (Segment 440)

2,300

2030

(270)

2030

(270)

2030

(270)

2,300

Gallion Compressor Station: Scheduled Unit Maintenance, Proj-523610 (9/29/2025 - 10/17/2025)

Auburn (segment 460)

1,953

1693

(260)

1693

(260)

1693

(260)

1693

(260)

1693

(260)

Auburn Compressor Station: Scheduled Unit Maintenance, Proj-52593 (9/29/2025 - 10/31/2025)

Ellerslie (segment 490)

1,547

1192

(355)

1192

(355)

1467

(80)

1467

(80)

1,547

South Main 2nd loop line east of Ellerslie: Scheduled Pipeline Maintenance, Proj-SNG-2570p2 (10/2/2025 - 10/12/2025)

South Main loop line east of Ellerslie: Scheduled Pipeline Maintenance, Proj-SNG-2782 (10/13/2025 - 10/24/2025)

South Main loop line/South Main 2nd loop line east of Ellerslie: Scheduled Pipeline Maintenace, Proj- SNG-2570p1 (9/29/2025 - 10/1/2025)

South Atlanta (segment 510)

522

522

Thomaston East (segment 530)

849

849

Hall Gate (segment 560)

705

705

655

(50)

655

(50)

705

Wrens Compressor Station: Scheduled Station Maintenance, Proj-52882 (10/6/2025 - 10/17/2025) Wrens Compressor Station: Scheduled Station Maintenance, Proj-52883 (10/6/2025 - 10/17/2025)

South Georgia (segment 650)

127

127

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.

Southern Natural Gas Notice 710888

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