Clean Air Act stationary source · ICIS-AIR TX0000004820100055
EQUISTAR CHEMICALS LA PORTE COMPLEX, La Porte, TX: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Major sourceEmissions classification
- Violation w/in 1 YearCurrent violation status, as filed
- 2Compliance evaluations since January 1, 2017
- 0High-priority violations since January 1, 2017
- 15Formal enforcement actions since January 1, 2017
EQUISTAR CHEMICALS LA PORTE COMPLEX, at 1515 MILLER CUT OFF RD, La Porte in Harris County, Texas, 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 “Violation w/in 1 Year”. Harris County is on EPA’s Green Book list of areas that do not meet a national air quality standard. 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 | EQUISTAR CHEMICALS LA PORTE COMPLEX |
|---|---|
| ICIS-AIR ID | TX0000004820100055 |
| EPA facility registry ID | 110034641635 |
| Operating status | Operating |
| Emissions classification | Major source |
| Current violation status (ICIS-AIR high-priority violation field) | Violation w/in 1 Year |
| Address | 1515 MILLER CUT OFF RD, La Porte, TX 77571 |
| County | Harris County |
| In a nonattainment county | Yes (EPA Green Book) |
| Industry (NAICS) | Chemical manufacturing (NAICS 3251) |
| EPA region | 06 |
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 EQUISTAR CHEMICALS LA PORTE COMPLEX 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
- 2Evaluations since January 1, 2017
- 2Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| August 25, 2022 | FCE On-Site | State | Title V Permits |
| June 3, 2020 | FCE On-Site | State | Title V Permits |
Violations
- 11Violation 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 |
|---|---|---|---|
| June 25, 2026 | Earliest FRV determination | State | Title V Permits |
| July 29, 2025 | Earliest FRV determination | State | Title V Permits |
| August 25, 2022 | Earliest FRV determination | State | Title V Permits |
| December 3, 2020 | Earliest FRV determination | State | Title V Permits |
| August 21, 2020 | Earliest FRV determination | State | Title V Permits |
| June 3, 2020 | Earliest FRV determination | State | Title V Permits |
| February 4, 2020 | Earliest FRV determination | State | Title V Permits |
| April 23, 2019 | Earliest FRV determination | State | Title V Permits |
| April 24, 2018 | Earliest FRV determination | State | Title V Permits |
| July 17, 2017 | Earliest FRV determination | State | Title V Permits |
| February 28, 2017 | Earliest FRV determination | State | Title V Permits |
Enforcement and penalties
15 formal enforcement actions since January 1, 2017, 15 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 |
|---|---|---|---|
| June 9, 2026 | Administrative Order | State | $21,875 |
| April 22, 2026 | Administrative Order | State | $378,427 |
| August 20, 2024 | Administrative Order | State | $541,954 |
| October 13, 2021 | Civil Judicial Action | U.S. EPA | $3,400,000 |
| August 25, 2021 | Administrative Order | State | $15,939 |
| August 19, 2021 | Administrative Order | State | $27,688 |
| September 16, 2020 | Administrative Order | State | $13,125 |
| July 20, 2020 | Administrative Order | State | $46,439 |
| December 3, 2019 | Administrative Order | State | $6,563 |
| May 13, 2019 | Administrative Order | State | $13,125 |
| August 28, 2018 | Administrative Order | State | $6,563 |
| August 22, 2018 | Administrative Order | State | $15,000 |
| November 15, 2017 | Administrative Order | State | $45,000 |
| September 11, 2017 | Administrative Order | State | $15,000 |
| May 4, 2017 | Administrative Order | State | $39,375 |
Informal enforcement
EPA’s informal action file holds no notice or warning for ICIS-AIR TX0000004820100055 since January 1, 2017.
Stack tests
- 11Stack tests since January 1, 2017
- 1Recorded as failed
| Date | What EPA recorded | Agency |
|---|---|---|
| June 28, 2023 | Fail | State |
| February 25, 2021 | Pass | State |
| January 29, 2021 | Pass | State |
| January 29, 2021 | Pass | State |
| October 19, 2020 | Pass | State |
| October 19, 2020 | Pass | State |
| October 19, 2020 | Pass | State |
| December 4, 2019 | N/A | State |
| June 5, 2019 | Pass | State |
| October 16, 2018 | N/A | State |
| September 7, 2018 | N/A | 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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How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every source on ECHO: its compliance status quarter by quarter, its evaluations, and its violations, enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter EPA facility registry ID 110034641635 there.
Nearby on the register
- Air-emissions sources in Harris County
- Every source record in Harris County, A to Z
- Air-emissions sources in Texas
- Every source record in Texas, A to Z
Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.