Informational Postings :: Southern Natural Gas Company, L.L.C.

Informational Postings

Notice Detail

TSP/TSP Name: 6900518-SOUTHERN NATURAL GAS CO.	Critical: Y
Notice Type Desc (1): MAINTENANCE	Notice Type Desc (2): MAINTENANCE
Notice Eff Date/Time: 01/16/2025 3:15:10PM	Notice End Date/Time: 01/17/2025 9:00:00am
Post Date/Time: 1/16/2025 3:15:10 PM	Notice ID: 710284
Reqrd Rsp: 1	Rsp Date: 01/16/2025
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 01/16/25)

-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 (1/20)

Tuesday (1/21)

Wednesday (1/22)

Thursday (1/23)

Friday (1/24)

Saturday (1/25)

Sunday (1/26)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

209

209

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

355

355

White Castle (segment 340)

798

798

Sesh (segment 380)

506

506

Gwinville (segment 400)

234

234

Enterprise (segment 430)

2,450

2395

(55)

2395

(55)

2,450

Enterprise compressor station: Unscheduled unit outage Project 52228 (11/25/2024 - 1/21/2025)

Ellerslie (segment 490)

1,663

1633

(30)

1633

(30)

1633

(30)

1633

(30)

1633

(30)

1633

(30)

1633

(30)

Ellerslie compressor station: Unscheduled unit outage Project-52674 (11/14/2024 - 1/30/2025)

South Atlanta (segment 510)

537

537

Thomaston East (segment 530)

900

900

South Georgia (segment 650)

143

143

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.
		January 2025 (updated 01/16/25)					-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 (12/30 - 1/5)	Week 2 (1/6 - 1/12)	Week 3 (1/13 - 1/19)	Week 4 (1/20 - 1/26)	Week 5 (1/27 - 2/2)	Primary Outage(s)
Station / Seg		Est. Operational Capacity (Operational Impact) - Thousand Dth					Primary Outage(s)
Onward (segment 30)	209					209
Duncanville Lateral (segment 90)	36					36
Dearmanville (segment 150)	355					355
White Castle (segment 340)	798					798
Sesh (segment 380)	506					506
Gwinville (segment 400)	234					234
Enterprise (segment 430)	2,450					2,450
Ellerslie (segment 490)	1,663					1633 (30)	Ellerslie compressor station: Unscheduled unit outage, Project-52674 (11/14/2024 - 1/30/2025)
South Atlanta (segment 510)	537					537
Thomaston East (segment 530)	900					900
South Georgia (segment 650)	143					143
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.

February 2025 (updated 01/16/25)

-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 (2/3 - 2/9)

Week 2 (2/10 - 2/16)

Week 3 (2/17 - 2/23)

Week 4 (2/24 - 3/2)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

209

209

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

355

355

White Castle (segment 340)

798

798

Sesh (segment 380)

500

500

Gwinville (segment 400)

234

234

Enterprise (segment 430)

2,450

2,450

Ellerslie (segment 490)

1,663

1,663

South Atlanta (segment 510)

537

537

Thomaston East (segment 530)

900

900

South Georgia (segment 650)

143

143

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.

March 2025 (updated 01/16/25)

-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 (3/3 - 3/9)

Week 2 (3/10 - 3/16)

Week 3 (3/17 - 3/23)

Week 4 (3/24 - 3/30)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

209

209

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

355

355

White Castle (segment 340)

798

798

Sesh (segment 380)

500

500

Gwinville (segment 400)

234

157

(77)

157

(77)

182

(52)

182

(52)

Gwinville Pickens Line north of Gwinville: Pipeline Maintenance(remediation), Proj-SNG-19050/20646 (3/22/2025 - 3/28/2025)

Gwinville Pickens Line north of Rankin: Pipeline Maintenance(remediation), Proj-SNG-19128 (3/17/2025

- 3/20/2025)

Gwinville Pickens Line south of Pickens: Pipeline Maintenance(remediation), Proj-SNG-19128 (3/13/2025 - 3/14/2025)

Gwinville Pickens Line south of Pickens: Pipeline Maintenance(remediation), Proj-SNG-19128/26277 (3/3/2025 - 3/10/2025)

Gwinville Pickens Line south of Rankin: Pipeline Maintenance(remediation), Proj-SNG-19050 (3/20/2025 - 3/21/2025)

Enterprise (segment 430)

2,450

2,450

Ellerslie (segment 490)

1,663

1,663

South Atlanta (segment 510)

537

537

Thomaston East (segment 530)

900

900

South Georgia (segment 650)

143

143

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.

April 2025 (updated 01/16/25)

-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 (3/31 - 4/6)

Week 2 (4/7 - 4/13)

Week 3 (4/14 - 4/20)

Week 4 (4/21 - 4/27)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

203

203

Louisville East (segment 50)

520

520

210

(310)

210

(310)

275

(245)

2nd North Main Line east of Pickens: Pipeline Maintenance(remediation), Proj-SNG-19047 (4/21/2025 - 5/2/2025)

2nd North Main Line east of Pickens: Pipeline Maintenance(remediation), Proj-SNG-19047 (M) (4/8/2025

- 4/18/2025)

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

346

346

White Castle (segment 340)

772

772

Sesh (segment 380)

500

500

Gwinville (segment 400)

234

199

(35)

150

(84)

150

(84)

234

2nd North Main Line east of Pickens: Pipeline Maintenance(remediation), Proj-SNG-19047 (M) (4/8/2025

- 4/18/2025)

Gwinville Pickens Line north of Gwinville: Pipeline Maintenance(remediation), Proj-SNG- 19050/20646/21938 (3/31/2025 - 4/7/2025)

Enterprise (segment 430)

2,306

2,306

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

Holy Trinity (segment 655)

127

127

(30)

127

Holy Trinity Compressor Station: Unit maintenance, Proj-58051 (4/7/2025 - 4/12/2025)

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.