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: 09/26/2024 4:17:20PM	Notice End Date/Time: 09/27/2024 9:00:00am
Post Date/Time: 9/26/2024 4:17:20 PM	Notice ID: 709866
Reqrd Rsp: 1	Rsp Date: 09/26/2024
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 09/26/24)

-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 (9/30)

Tuesday (10/1)

Wednesday (10/2)

Thursday (10/3)

Friday (10/4)

Saturday (10/5)

Sunday (10/6)

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

LA West Leg (segment 350)

735

720

(15)

720

(15)

720

(15)

720

(15)

535

(200)

535

(200)

535

(200)

Ducklake Franklinton line north of White Castle: Pipeline maintenance-SNG-2754 (9/27/2024 - 10/6/2024)

White Castle Franklinton loop line north of White Castle: Pipeline maintenance-SNG2861 (10/4/2024 - 11/1/2024)

Sesh (segment 380)

500

500

Gwinville Pool (segment 390)

1,607

1577

(30)

1577

(30)

1577

(30)

1,607

Gwinville compressor station: Unit maintenance-Proj-52117 (8/12/2024 - 10/2/2024)

Gwinville (segment 400)

234

234

Enterprise (segment 430)

2,306

2246

(60)

2246

(60)

2246

(60)

2246

(60)

2246

(60)

2,306

Enterprise Compressor Station: Unit Maintenance Proj-522213 (9/23/2024 - 10/4/2024)

Selma (segment 460)

2,293

2,293

2028

(265)

2028

(265)

2028

(265)

2028

(265)

2028

(265)

2028

(265)

Selma Compressor station: Unit maintenance (10/1/2024 - 10/28/2024)

Ellerslie (segment 490)

1,547

1,547

Thomaston West (segment 490)

1,535

1520

(15)

1520

(15)

1520

(15)

1520

(15)

1520

(15)

1520

(15)

1520

(15)

Thomaston compressor station: Unscheduled unit outage Proj-45274 (5/23/2024 - 10/9/2024)

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 2024 (updated 09/26/24)

-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 (9/30 - 10/6)

Week 2 (10/7 - 10/13)

Week 3 (10/14 - 10/20)

Week 4 (10/21 - 10/27)

Week 5 (10/28 - 11/3)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

203

203

Duncanville Lateral (segment 90)

Providence (segment 120)

652

297

(355)

652

2nd North main line east of Providence: Pipeline maintenance (valve maintenance) (10/10/2024 - 10/13/2024)

Dearmanville (segment 150)

346

346

Bell Mills North (Segment 170)

236

236

119

(117)

236

Bell Mills compressor station: Station outage for maintenance (M) (10/22/2024 - 10/23/2024)

White Castle (segment 340)

772

772

LA West Leg (segment 350)

735

535

(200)

535

(200)

535

(200)

535

(200)

White Castle Franklinton loop line north of White Castle: Pipeline maintenance-SNG2861 (10/4/2024 - 11/1/2024)

GWINVILLE SOUTH

(segment 370)

1,123

943

(180)

843

(280)

843

(280)

834

(289)

Franklinton Gwinville loop line at Pearl River: Pipeline maintenance (11/1/2024 - 11/8/2024) Pearl River compressor station: Compressor station outage (10/18/2024 - 11/1/2024)

Pearl River compressor station-Franklinton Gwinville line outage: Pipeline maintenance (10/11/2024 - 11/1/2024)

Sesh (segment 380)

500

447

(53)

500

467

(33)

460

(40)

Sesh outage: Maintenance (M) (10/21/2024 - 10/23/2024) Sesh outage: Maintenance (M) (10/28/2024 - 10/30/2024) Sesh outage: Maintenance (M) (10/31/2024)

Sesh outage: Maintenance (M) (10/8/2024 - 10/10/2024)

Gwinville (segment 400)

234

234

150

(84)

150

(84)

2ndNML east of Pickens: Pipeline maintenance-SNG-2328 (10/22/2024 - 10/30/2024)

Bay Springs (segment 420)

1,675

1,675

1245

(430)

1595

(80)

South main 2nd loop line west of Enterprise compressor station: Pipeline maintenance (10/21/2024 - 10/26/2024)

South main line west of Enterprise compressor station: Pipeline maintenance (10/29/2024 - 11/5/2024)

Enterprise (segment 430)

2,306

1846

(460)

1966

(340)

2,306

Enterprise Compressor Station: Unit Maintenance, Proj-522212 (10/12/2024) York compressor station: station maintenance (10/14/2024)

York compressor station: Unit maintenance (10/9/2024 - 10/10/2024)

Gallion (Segment 440)

2,300

2,300

2035

(265)

Gallion compressor station: Unit maintenance, Proj-523610 (10/30/2024 - 10/31/2024)

Selma (segment 460)

2,293

1953

(340)

1953

(340)

2003

(290)

2003

(290)

Auburn compressor station: Station maintenance (10/18/2024) Auburn compressor station: unit maintenance (10/7/2024 - 10/8/2024) Selma Compressor station: Unit maintenance (10/1/2024 - 10/28/2024)

South main 3rd loop line east of Elmore compressor station: Pipeline maintenance (10/25/2024 - 10/31/2024)

Ellerslie (segment 490)

1,547

1,547

Thomaston West (segment 490)

1,535

1380

(155)

1380

(155)

1,535

Thomaston Compressor Station: Unit Maintenance, Proj-52722 (10/7/2024 - 10/16/2024) Thomaston compressor station: Unscheduled unit outage, Proj-45274 (5/23/2024 - 10/9/2024)

South Atlanta (segment 510)

522

522

Thomaston East (segment 530)

849

849

South Georgia (segment 650)

127

127

Holy Trinity (segment 655)

127

127

(37)

127

Holy Trinity compressor station Mainline #1: Valve maintenance (10/14/2024 - 10/18/2024)

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.

November 2024 (updated 09/26/24)

-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 (11/4 - 11/10)

Week 2 (11/11 - 11/17)

Week 3 (11/18 - 11/24)

Week 4 (11/25 - 12/1)

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

GWINVILLE SOUTH

(segment 370)

1,222

923

(299)

923

(299)

1,222

Franklinton Gwinville 2nd loop line at Pearl River: Pipeline maintenance (11/8/2024 - 11/15/2024) Franklinton Gwinville loop line at Pearl River: Pipeline maintenance (11/1/2024 - 11/8/2024)

Sesh (segment 380)

484

449

(35)

484

Gwinville (segment 400)

234

234

Bay Springs (segment 420)

1,819

1739

(80)

1,819

South main line west of Enterprise compressor station: Pipeline maintenance (10/29/2024 - 11/5/2024)

Enterprise (segment 430)

2,450

2,450

Gallion (Segment 440)

2,457

2,457

2167

(290)

2,457

Gallion compressor station: Station maintenance (11/18/2024)

Elmore (segment 460)

2,155

2,155

1910

(245)

2,155

Elmore compressor station: Station maintenance (11/18/2024)

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.

December 2024 (updated 09/26/24)

-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 (12/2 - 12/8)

Week 2 (12/9 - 12/15)

Week 3 (12/16 - 12/22)

Week 4 (12/23 - 12/29)

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)

484

484

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.

January 2025 (updated 09/26/24)

-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)

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)

484

484

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.