Clean Air Act stationary source · ICIS-AIR MS0000002803100005
TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, STATION 77, Seminary, MS: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Major sourceEmissions classification
- No Violation IdentifiedCurrent violation status, as filed
- 6Compliance evaluations since January 1, 2017
- 0High-priority violations since January 1, 2017
- 1Formal enforcement actions since January 1, 2017
TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, STATION 77, at HIGHWAY 535 NORTH, Seminary in Covington County, Mississippi, is an operating major source of air pollution on EPA’s ICIS-AIR register. EPA’s file records its current violation status (ICIS-AIR’s high-priority violation field) as “No Violation Identified”. The status and classification are as EPA’s facility file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the source’s current standing, quarter by quarter.
Identity
| Facility as filed | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, STATION 77 |
|---|---|
| ICIS-AIR ID | MS0000002803100005 |
| EPA facility registry ID | 110007646208 |
| Operating status | Operating |
| Emissions classification | Major source |
| Current violation status (ICIS-AIR high-priority violation field) | No Violation Identified |
| Address | HIGHWAY 535 NORTH, Seminary, MS 39479 |
| County | Covington County |
| In a nonattainment county | No (EPA Green Book) |
| Industry (NAICS) | Utilities (NAICS 2212) |
| EPA region | 04 |
Cited to the EPA ICIS-AIR facility file (ECHO download).
Programs and pollutants
Velarion’s copy of EPA’s ICIS-AIR download does not include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, STATION 77 is under or the pollutants it is permitted for. The programs each evaluation and violation below was recorded under are shown with it. EPA’s free Detailed Facility Report lists both.
Compliance evaluations
- 6Evaluations since January 1, 2017
- 5Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| September 9, 2025 | FCE On-Site | State | MACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| July 18, 2024 | PCE Off-Site | State | MACT Standards (40 CFR Part 63) |
| September 8, 2023 | FCE On-Site | State | MACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| November 2, 2020 | FCE Off-Site | State | MACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| June 28, 2019 | FCE On-Site | State | MACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| March 28, 2017 | FCE On-Site | State | MACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
Violations
- 2Violation determinations since January 1, 2017
- 0Of them high-priority
A high-priority violation (HPV) is the most serious class of Clean Air Act non-compliance an agency records; a federally reportable violation (FRV) is the next step down. Each row is one determination as EPA’s violation history files it.
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| July 24, 2024 | Earliest FRV determination | State | MACT Standards (40 CFR Part 63) |
| April 3, 2017 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
Enforcement and penalties
1 formal enforcement actions since January 1, 2017, 1 of them with a penalty filed above zero. Each penalty is shown as EPA’s formal action file states it; “Not stated” means the file gives no figure, and $0 is a disclosed zero.
| Date | What EPA recorded | Agency | Penalty, as filed |
|---|---|---|---|
| February 16, 2018 | Administrative Order | State | $40,000 |
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| July 24, 2024 | Notice of Violation | State |
| April 3, 2017 | Notice of Violation | State |
Stack tests
- 54Stack tests since January 1, 2017
- 0Recorded as failed
The newest 50 of 54.
| Date | What EPA recorded | Agency |
|---|---|---|
| September 4, 2025 | Pass | State |
| September 4, 2025 | Pass | State |
| September 4, 2025 | Pass | State |
| September 4, 2025 | Pass | State |
| September 10, 2024 | Pass | State |
| September 10, 2024 | Pass | State |
| September 10, 2024 | Pass | State |
| September 10, 2024 | Pass | State |
| September 10, 2024 | Pass | State |
| September 10, 2024 | Pass | State |
| September 10, 2024 | Pass | State |
| September 13, 2023 | Pass | State |
| September 13, 2023 | Pass | State |
| September 13, 2023 | Pass | State |
| September 13, 2023 | Pass | State |
| September 13, 2023 | Pass | State |
| September 13, 2023 | Pass | State |
| September 13, 2023 | Pass | State |
| September 13, 2022 | Pass | State |
| September 13, 2022 | Pass | State |
| September 13, 2022 | Pass | State |
| September 13, 2022 | Pass | State |
| September 13, 2022 | Pass | State |
| September 13, 2022 | Pass | State |
| September 13, 2022 | Pass | State |
| September 15, 2021 | Pass | State |
| September 15, 2021 | Pass | State |
| September 15, 2021 | Pass | State |
| September 15, 2021 | Pass | State |
| September 15, 2021 | Pass | State |
| September 15, 2021 | Pass | State |
| September 15, 2021 | Pass | State |
| October 7, 2020 | Pass | State |
| October 7, 2020 | Pass | State |
| October 7, 2020 | Pass | State |
| October 7, 2020 | Pass | State |
| October 7, 2020 | Pass | State |
| October 7, 2020 | Pass | State |
| October 7, 2020 | Pass | State |
| October 10, 2019 | Pass | State |
| October 29, 2018 | Pass | State |
| October 29, 2018 | Pass | State |
| October 29, 2018 | Pass | State |
| October 29, 2018 | Pass | State |
| October 29, 2018 | Pass | State |
| October 29, 2018 | Pass | State |
| October 29, 2018 | Pass | State |
| October 3, 2017 | Pass | State |
| October 3, 2017 | Pass | State |
| October 3, 2017 | Pass | State |
Cited to the EPA ICIS-AIR evaluation, violation, stack test and enforcement files (ECHO download), events dated January 1, 2017 or later as loaded; up to 50 rows of each shown, newest first.
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Nearby on the register
- Air-emissions sources in Covington County
- Every source record in Covington County, A to Z
- Air-emissions sources in Mississippi
- Every source record in Mississippi, A to Z
Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.