Southern Natural Gas Notice 712064

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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: 06/04/2026 3:54:09PM Notice End Date/Time: 06/05/2026 9:00:00am Post Date/Time: 6/4/2026 3:54:09 PM Notice ID: 712064 Reqrd Rsp: 1 Rsp Date: 6/4/2026 12:00:00 AM 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 06/04/26)

-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 (6/8)

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

Onward (segment 30)

203

203

Duncanville Lateral (segment 90)

Helena Regulator (segment 120)

(3)

Bessemer Calera Line south of Helena Regulator: Scheduled Pipeline Maintenance Proj-SNG-38163(PT) (M) (5/26/2026 - 7/10/2026)

Dearmanville (segment 150)

346

346

White Castle (segment 340)

760

685

(75)

685

(75)

685

(75)

685

(75)

685

(75)

685

(75)

685

(75)

Shadyside Compressor Station: Scheduled Unit Maintenance Proj-5000-3 (6/8/2026 - 7/5/2026)

Sesh (segment 380)

507

507

Gwinville (segment 400)

234

234

Bay Springs (segment 420)

1,675

1595

(80)

1595

(80)

1595

(80)

1595

(80)

1595

(80)

1595

(80)

1595

(80)

Bay Springs Compressor Station: Scheduled Unit Maintenance Proj-52161 (7/8/2025 - 10/31/2026)

Enterprise (segment 430)

2,306

2166

(140)

2166

(140)

2166

(140)

2166

(140)

2166

(140)

2166

(140)

2166

(140)

Enterprise Compressor Station: Scheduled Unit Maintenance Proj-522212 (3/16/2026 - 6/28/2026)

South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO (5/30/2026 - 12/31/2026)

Auburn (segment 460)

1,953

1848

(105)

1848

(105)

1848

(105)

1848

(105)

1848

(105)

1848

(105)

1848

(105)

South Main loop line east of Auburn: Scheduled Pipeline Maintenance(remediation) Proj-SNG-20457(2) (6/8/2026 - 6/19/2026)

Ellerslie (segment 490)

1,547

1,547

Thomaston West (segment 490)

1,535

1350

(185)

1350

(185)

1350

(185)

1350

(185)

1350

(185)

1350

(185)

1350

(185)

Thomaston Compressor Station: Scheduled Unit Maintenance Proj-5272-2 (5/27/2026 - 6/26/2026)

Thomaston Compressor Station: Scheduled Unit Maintenance Proj-5272-5 (4/27/2026 - 6/14/2026)

South Atlanta (segment 510)

522

522

Thomaston East (segment 530)

849

849

Hall Gate (segment 560)

705

635

(70)

635

(70)

635

(70)

635

(70)

635

(70)

635

(70)

635

(70)

Hall Gate Compressor Station: Scheduled Unit Maintenance Proj-52833 (4/20/2026 - 6/14/2026)

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.
	June 2026 (updated 06/04/26)					-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 (6/1 - 6/7)	Week 2 (6/8 - 6/14)	Week 3 (6/15 - 6/21)	Week 4 (6/22 - 6/28)	Primary Outage(s)
Station / Seg		Est. Operational Capacity (Operational Impact) - Thousand Dth				Primary Outage(s)
Onward (segment 30)	203			203	203
Duncanville Lateral (segment 90)	36			36	36
						Bessemer Calera Line south of Helena Regulator: Scheduled Pipeline Maintenance,
Helena Regulator (segment 120)	21			18 (3)	18 (3)	Proj-SNG-38163(PT) (M) (5/26/2026 - 7/10/2026)
Dearmanville (segment 150)	346			346	346
						Shadyside Compressor Station: Scheduled Unit Maintenance, Proj-5000-3 (6/8/2026 - 7/5/2026)
White Castle (segment 340)	760			685 (75)	685 (75)	White Castle Compressor Station: Scheduled Unit Maintenance, Proj-5010-8 (6/15/2026 - 7/2/2026)
Sesh (segment 380)	507			507	507
Gwinville (segment 400)	234			234	234
						Bay Springs Compressor Station: Scheduled Unit Maintenance,
Bay Springs (segment 420)	1,675			1595 (80)	1595 (80)	Proj-52161 (7/8/2025 - 10/31/2026)
						Enterprise Compressor Station: Scheduled Unit Maintenance,
Enterprise (segment 430)	2,306			2166 (140)	2166 (140)	Proj-522212 (3/16/2026 - 6/28/2026) South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO (5/30/2026 - 12/31/2026)
						South Main loop line east of Auburn: Scheduled Pipeline Maintenance(remediation),
Auburn (segment 460)	1,953			1848 (105)	1,953	Proj-SNG-20457(2) (6/8/2026 - 6/19/2026)
Ellerslie (segment 490)	1,547			1,547	1,547
						Thomaston Compressor Station: Scheduled Unit Maintenance,
Thomaston West (segment 490)	1,535			1520 (15)	1520 (15)	Proj-5272-2 (5/27/2026 - 6/26/2026)
South Atlanta (segment 510)	522			522	522
Thomaston East (segment 530)	849			849	849
						Ocmulgee Compressor Station: Scheduled Unit Maintenance,
Ocmulgee (segment 530)	804			659 (145)	804	Proj-5277-6 (6/16/2026 - 6/17/2026)
						Wrens Compressor Station: Scheduled Unit Maintenance, Proj-5288-4 (6/15/2026 - 7/5/2026)
East/South Wrens (segment 560)	680			585 (95)	585 (95)
South Georgia (segment 650)	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.

July 2026 (updated 06/04/26)

-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 (6/29 - 7/5)

Week 2 (7/6 - 7/12)

Week 3 (7/13 - 7/19)

Week 4 (7/20 - 7/26)

Week 5 (7/27 - 8/2)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

203

203

Duncanville Lateral (segment 90)

Helena Regulator (segment 120)

(3)

Bessemer Calera Line south of Helena Regulator: Scheduled Pipeline Maintenance, Proj-SNG-38163(PT) (M) (5/26/2026 - 7/10/2026)

Bessemer Calera loop line south of Helena Regulator: Scheduled Pipeline Maintenance, Proj-SNG-38163(PT) (M) (7/16/2026 - 9/3/2026)

Tarrant (segment 130)

563

563

438

(125)

438

(125)

438

(125)

438

(125)

North Main loop line east of Providence: Scheduled Pipeline Maintenance(remediation), Proj-SNG-20462/SNG-21973 (7/6/2026 - 8/14/2026)

Dearmanville (segment 150)

346

346

White Castle (segment 340)

760

685

(75)

760

Shadyside Compressor Station: Scheduled Unit Maintenance, Proj-5000-3 (6/8/2026 - 7/5/2026) White Castle Compressor Station: Scheduled Unit Maintenance,

Proj-5010-8 (6/15/2026 - 7/2/2026)

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 - 10/31/2026)

Enterprise (segment 430)

2,306

2126

(180)

2126

(180)

2126

(180)

2126

(180)

2126

(180)

Enterprise Compressor Station: Scheduled Unit Maintenance, Proj-522215 (6/29/2026 - 8/2/2026)

South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO (5/30/2026 - 12/31/2026)

York

'ZONE 1/2 BOUNDARY'

(segment 440)

2,305

2,305

2135

(170)

2135

(170)

2,305

South Main 2nd loop line east of York: Scheduled Pipeline Maintenance, Proj-SNG-36214 (7/6/2026 - 7/15/2026)

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)

680

590

(90)

680

Wrens Compressor Station: Scheduled Unit Maintenance, Proj-5288-4 (6/15/2026 - 7/5/2026) Wrens Compressor Station: Scheduled Unit Maintenance, Proj-52885 (7/13/2026 - 7/19/2026)

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.

August 2026 (updated 06/04/26)

-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 (8/3 - 8/9)

Week 2 (8/10 - 8/16)

Week 3 (8/17 - 8/23)

Week 4 (8/24 - 8/30)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

203

203

Duncanville Lateral (segment 90)

Bessemer Calera loop line south of Helena Regulator: Scheduled Pipeline Maintenance,

Helena Regulator (segment 120)

(3)

Proj-SNG-38163(PT) (M) (7/16/2026 - 9/3/2026)

North Main loop line east of Providence: Scheduled Pipeline Maintenance(remediation),

Tarrant (segment 130)

563

438

(125)

438

(125)

543

(20)

543

(20)

Proj-SNG-20462/SNG-21973 (7/6/2026 - 8/14/2026)

Tarrant Compressor Station: Scheduled Unit Maintenance(panel), Proj-4152-7-8-9-14 (8/3/2026 - 9/27/2026)

Dearmanville (segment 150)

346

346

White Castle (segment 340)

760

760

Sesh (segment 380)

500

500

Gwinville (segment 400)

234

234

Bay Springs Compressor Station: Scheduled Unit Maintenance,

Bay Springs (segment 420)

1,675

1595

(80)

1595

(80)

1595

(80)

1595

(80)

Proj-52161 (7/8/2025 - 10/31/2026)

South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO

Enterprise (segment 430)

2,306

2166

(140)

2166

(140)

2166

(140)

2166

(140)

(5/30/2026 - 12/31/2026)

Ellerslie Compressor Station: Scheduled Station Maintenance, Proj-5267 (8/18/2026 - 8/20/2026)

Ellerslie (segment 490)

1,547

1,547

1317

(230)

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.
	September 2026 (updated 06/04/26)					-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 (8/31 - 9/6)	Week 2 (9/7 - 9/13)	Week 3 (9/14 - 9/20)	Week 4 (9/21 - 9/27)	Primary Outage(s)
Station / Seg		Est. Operational Capacity (Operational Impact) - Thousand Dth				Primary Outage(s)
Onward (segment 30)	203	203	203	203	203
Duncanville Lateral (segment 90)	36	36	36	36	36
						Bessemer Calera loop line south of Helena Regulator: Scheduled Pipeline Maintenance,
Helena Regulator (segment 120)	21	18 (3)	21	21	21	Proj-SNG-38163(PT) (M) (7/16/2026 - 9/3/2026)
						Tarrant Compressor Station: Scheduled Unit Maintenance(panel),
Tarrant (segment 130)	563	543 (20)	543 (20)	543 (20)	543 (20)	Proj-4152-7-8-9-14 (8/3/2026 - 9/27/2026)
Dearmanville (segment 150)	346	346	346	346	346
White Castle (segment 340)	760	760	760	760	760
Sesh (segment 380)	500	500	500	500	500
						Pickens Compressor Station: Scheduled Unit Maintenance, Proj-4125-2 (8/31/2026 - 9/23/2026)
Gwinville (segment 400)	234	154 (80)	154 (80)	154 (80)	154 (80)
						Bay Springs Compressor Station: Scheduled Unit Maintenance,
Bay Springs (segment 420)	1,675	1595 (80)	1595 (80)	1595 (80)	1595 (80)	Proj-52161 (7/8/2025 - 10/31/2026)
						South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO
Enterprise (segment 430)	2,306	2166 (140)	2166 (140)	2166 (140)	2166 (140)	(5/30/2026 - 12/31/2026)
						Gallion Compressor Station: Scheduled Unit Maintenance, Proj-5236-9 (9/7/2026 - 9/27/2026)
Gallion (Segment 440)	2,300	2,300	2145 (155)	2145 (155)	2255 (45)	South Main loop line east of Gallion: Scheduled Pipeline Maintenance(remediation), Proj-SNG-22002 (9/7/2026 - 9/18/2026)
						Selma Compressor Station: Scheduled Unit Maintenance, Proj-52453 (9/14/2026 - 9/20/2026)
Selma (segment 460)	2,293	2,293	2,293	1973 (320)	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
						Wrens Compressor Station: Scheduled Unit Maintenance, Proj-5288-4 (9/8/2026 - 9/11/2026)
East/South Wrens (segment 560)	680	680	585 (95)	680	680
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.

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 06/04/26)

-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 (6/8)

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

Onward (segment 30)

203

203

Duncanville Lateral (segment 90)

Helena Regulator (segment 120)

(3)

Bessemer Calera Line south of Helena Regulator: Scheduled Pipeline Maintenance Proj-SNG-38163(PT) (M) (5/26/2026 - 7/10/2026)

Dearmanville (segment 150)

346

346

White Castle (segment 340)

760

685

(75)

685

(75)

685

(75)

685

(75)

685

(75)

685

(75)

685

(75)

Shadyside Compressor Station: Scheduled Unit Maintenance Proj-5000-3 (6/8/2026 - 7/5/2026)

Sesh (segment 380)

507

507

Gwinville (segment 400)

234

234

Bay Springs (segment 420)

1,675

1595

(80)

1595

(80)

1595

(80)

1595

(80)

1595

(80)

1595

(80)

1595

(80)

Bay Springs Compressor Station: Scheduled Unit Maintenance Proj-52161 (7/8/2025 - 10/31/2026)

Enterprise (segment 430)

2,306

2166

(140)

2166

(140)

2166

(140)

2166

(140)

2166

(140)

2166

(140)

2166

(140)

Enterprise Compressor Station: Scheduled Unit Maintenance Proj-522212 (3/16/2026 - 6/28/2026)

South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO (5/30/2026 - 12/31/2026)

Auburn (segment 460)

1,953

1848

(105)

1848

(105)

1848

(105)

1848

(105)

1848

(105)

1848

(105)

1848

(105)

South Main loop line east of Auburn: Scheduled Pipeline Maintenance(remediation) Proj-SNG-20457(2) (6/8/2026 - 6/19/2026)

Ellerslie (segment 490)

1,547

1,547

Thomaston West (segment 490)

1,535

1350

(185)

1350

(185)

1350

(185)

1350

(185)

1350

(185)

1350

(185)

1350

(185)

Thomaston Compressor Station: Scheduled Unit Maintenance Proj-5272-2 (5/27/2026 - 6/26/2026)

Thomaston Compressor Station: Scheduled Unit Maintenance Proj-5272-5 (4/27/2026 - 6/14/2026)

South Atlanta (segment 510)

522

522

Thomaston East (segment 530)

849

849

Hall Gate (segment 560)

705

635

(70)

635

(70)

635

(70)

635

(70)

635

(70)

635

(70)

635

(70)

Hall Gate Compressor Station: Scheduled Unit Maintenance Proj-52833 (4/20/2026 - 6/14/2026)

South Georgia (segment 650)

127

127

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.
	June 2026 (updated 06/04/26)					-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 (6/1 - 6/7)	Week 2 (6/8 - 6/14)	Week 3 (6/15 - 6/21)	Week 4 (6/22 - 6/28)	Primary Outage(s)
Station / Seg		Est. Operational Capacity (Operational Impact) - Thousand Dth				Primary Outage(s)
Onward (segment 30)	203			203	203
Duncanville Lateral (segment 90)	36			36	36
						Bessemer Calera Line south of Helena Regulator: Scheduled Pipeline Maintenance,
Helena Regulator (segment 120)	21			18 (3)	18 (3)	Proj-SNG-38163(PT) (M) (5/26/2026 - 7/10/2026)
Dearmanville (segment 150)	346			346	346
						Shadyside Compressor Station: Scheduled Unit Maintenance, Proj-5000-3 (6/8/2026 - 7/5/2026)
White Castle (segment 340)	760			685 (75)	685 (75)	White Castle Compressor Station: Scheduled Unit Maintenance, Proj-5010-8 (6/15/2026 - 7/2/2026)
Sesh (segment 380)	507			507	507
Gwinville (segment 400)	234			234	234
						Bay Springs Compressor Station: Scheduled Unit Maintenance,
Bay Springs (segment 420)	1,675			1595 (80)	1595 (80)	Proj-52161 (7/8/2025 - 10/31/2026)
						Enterprise Compressor Station: Scheduled Unit Maintenance,
Enterprise (segment 430)	2,306			2166 (140)	2166 (140)	Proj-522212 (3/16/2026 - 6/28/2026) South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO (5/30/2026 - 12/31/2026)
						South Main loop line east of Auburn: Scheduled Pipeline Maintenance(remediation),
Auburn (segment 460)	1,953			1848 (105)	1,953	Proj-SNG-20457(2) (6/8/2026 - 6/19/2026)
Ellerslie (segment 490)	1,547			1,547	1,547
						Thomaston Compressor Station: Scheduled Unit Maintenance,
Thomaston West (segment 490)	1,535			1520 (15)	1520 (15)	Proj-5272-2 (5/27/2026 - 6/26/2026)
South Atlanta (segment 510)	522			522	522
Thomaston East (segment 530)	849			849	849
						Ocmulgee Compressor Station: Scheduled Unit Maintenance,
Ocmulgee (segment 530)	804			659 (145)	804	Proj-5277-6 (6/16/2026 - 6/17/2026)
						Wrens Compressor Station: Scheduled Unit Maintenance, Proj-5288-4 (6/15/2026 - 7/5/2026)
East/South Wrens (segment 560)	680			585 (95)	585 (95)
South Georgia (segment 650)	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.

July 2026 (updated 06/04/26)

-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 (6/29 - 7/5)

Week 2 (7/6 - 7/12)

Week 3 (7/13 - 7/19)

Week 4 (7/20 - 7/26)

Week 5 (7/27 - 8/2)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

203

203

Duncanville Lateral (segment 90)

Helena Regulator (segment 120)

(3)

Bessemer Calera Line south of Helena Regulator: Scheduled Pipeline Maintenance, Proj-SNG-38163(PT) (M) (5/26/2026 - 7/10/2026)

Bessemer Calera loop line south of Helena Regulator: Scheduled Pipeline Maintenance, Proj-SNG-38163(PT) (M) (7/16/2026 - 9/3/2026)

Tarrant (segment 130)

563

563

438

(125)

438

(125)

438

(125)

438

(125)

North Main loop line east of Providence: Scheduled Pipeline Maintenance(remediation), Proj-SNG-20462/SNG-21973 (7/6/2026 - 8/14/2026)

Dearmanville (segment 150)

346

346

White Castle (segment 340)

760

685

(75)

760

Shadyside Compressor Station: Scheduled Unit Maintenance, Proj-5000-3 (6/8/2026 - 7/5/2026) White Castle Compressor Station: Scheduled Unit Maintenance,

Proj-5010-8 (6/15/2026 - 7/2/2026)

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 - 10/31/2026)

Enterprise (segment 430)

2,306

2126

(180)

2126

(180)

2126

(180)

2126

(180)

2126

(180)

Enterprise Compressor Station: Scheduled Unit Maintenance, Proj-522215 (6/29/2026 - 8/2/2026)

South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO (5/30/2026 - 12/31/2026)

York

'ZONE 1/2 BOUNDARY'

(segment 440)

2,305

2,305

2135

(170)

2135

(170)

2,305

South Main 2nd loop line east of York: Scheduled Pipeline Maintenance, Proj-SNG-36214 (7/6/2026 - 7/15/2026)

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)

680

590

(90)

680

Wrens Compressor Station: Scheduled Unit Maintenance, Proj-5288-4 (6/15/2026 - 7/5/2026) Wrens Compressor Station: Scheduled Unit Maintenance, Proj-52885 (7/13/2026 - 7/19/2026)

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.

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

SNG - Outage Impact Report

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

August 2026 (updated 06/04/26)

-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 (8/3 - 8/9)

Week 2 (8/10 - 8/16)

Week 3 (8/17 - 8/23)

Week 4 (8/24 - 8/30)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

203

203

Duncanville Lateral (segment 90)

Bessemer Calera loop line south of Helena Regulator: Scheduled Pipeline Maintenance,

Helena Regulator (segment 120)

(3)

Proj-SNG-38163(PT) (M) (7/16/2026 - 9/3/2026)

North Main loop line east of Providence: Scheduled Pipeline Maintenance(remediation),

Tarrant (segment 130)

563

438

(125)

438

(125)

543

(20)

543

(20)

Proj-SNG-20462/SNG-21973 (7/6/2026 - 8/14/2026)

Tarrant Compressor Station: Scheduled Unit Maintenance(panel), Proj-4152-7-8-9-14 (8/3/2026 - 9/27/2026)

Dearmanville (segment 150)

346

346

White Castle (segment 340)

760

760

Sesh (segment 380)

500

500

Gwinville (segment 400)

234

234

Bay Springs Compressor Station: Scheduled Unit Maintenance,

Bay Springs (segment 420)

1,675

1595

(80)

1595

(80)

1595

(80)

1595

(80)

Proj-52161 (7/8/2025 - 10/31/2026)

South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO

Enterprise (segment 430)

2,306

2166

(140)

2166

(140)

2166

(140)

2166

(140)

(5/30/2026 - 12/31/2026)

Ellerslie Compressor Station: Scheduled Station Maintenance, Proj-5267 (8/18/2026 - 8/20/2026)

Ellerslie (segment 490)

1,547

1,547

1317

(230)

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.
	September 2026 (updated 06/04/26)					-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 (8/31 - 9/6)	Week 2 (9/7 - 9/13)	Week 3 (9/14 - 9/20)	Week 4 (9/21 - 9/27)	Primary Outage(s)
Station / Seg		Est. Operational Capacity (Operational Impact) - Thousand Dth				Primary Outage(s)
Onward (segment 30)	203	203	203	203	203
Duncanville Lateral (segment 90)	36	36	36	36	36
						Bessemer Calera loop line south of Helena Regulator: Scheduled Pipeline Maintenance,
Helena Regulator (segment 120)	21	18 (3)	21	21	21	Proj-SNG-38163(PT) (M) (7/16/2026 - 9/3/2026)
						Tarrant Compressor Station: Scheduled Unit Maintenance(panel),
Tarrant (segment 130)	563	543 (20)	543 (20)	543 (20)	543 (20)	Proj-4152-7-8-9-14 (8/3/2026 - 9/27/2026)
Dearmanville (segment 150)	346	346	346	346	346
White Castle (segment 340)	760	760	760	760	760
Sesh (segment 380)	500	500	500	500	500
						Pickens Compressor Station: Scheduled Unit Maintenance, Proj-4125-2 (8/31/2026 - 9/23/2026)
Gwinville (segment 400)	234	154 (80)	154 (80)	154 (80)	154 (80)
						Bay Springs Compressor Station: Scheduled Unit Maintenance,
Bay Springs (segment 420)	1,675	1595 (80)	1595 (80)	1595 (80)	1595 (80)	Proj-52161 (7/8/2025 - 10/31/2026)
						South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO
Enterprise (segment 430)	2,306	2166 (140)	2166 (140)	2166 (140)	2166 (140)	(5/30/2026 - 12/31/2026)
						Gallion Compressor Station: Scheduled Unit Maintenance, Proj-5236-9 (9/7/2026 - 9/27/2026)
Gallion (Segment 440)	2,300	2,300	2145 (155)	2145 (155)	2255 (45)	South Main loop line east of Gallion: Scheduled Pipeline Maintenance(remediation), Proj-SNG-22002 (9/7/2026 - 9/18/2026)
						Selma Compressor Station: Scheduled Unit Maintenance, Proj-52453 (9/14/2026 - 9/20/2026)
Selma (segment 460)	2,293	2,293	2,293	1973 (320)	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
						Wrens Compressor Station: Scheduled Unit Maintenance, Proj-5288-4 (9/8/2026 - 9/11/2026)
East/South Wrens (segment 560)	680	680	585 (95)	680	680
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.

Southern Natural Gas Notice 712064

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