Clean Air Act stationary source · ICIS-AIR LA0000002201900127
WESTLAKE POLYMERS LLC - POLYETHYLENE MANUFACTURING COMPLEX, Sulphur, LA: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Major sourceEmissions classification
- No Violation IdentifiedCurrent violation status, as filed
- 7Compliance evaluations since January 1, 2017
- 0High-priority violations since January 1, 2017
- 6Formal enforcement actions since January 1, 2017
WESTLAKE POLYMERS LLC - POLYETHYLENE MANUFACTURING COMPLEX, at 3525 CITIES SERVICE HWY, Sulphur in Calcasieu County, Louisiana, 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”. Calcasieu 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 | WESTLAKE POLYMERS LLC - POLYETHYLENE MANUFACTURING COMPLEX |
|---|---|
| ICIS-AIR ID | LA0000002201900127 |
| EPA facility registry ID | 110000449587 |
| Operating status | Operating |
| Emissions classification | Major source |
| Current violation status (ICIS-AIR high-priority violation field) | No Violation Identified |
| Address | 3525 CITIES SERVICE HWY, Sulphur, LA 70665 |
| County | Calcasieu County |
| In a nonattainment county | Yes (EPA Green Book) |
| Industry (NAICS) | Chemical manufacturing (NAICS 3251) |
| SIC code | 2821 |
| 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 WESTLAKE POLYMERS LLC - POLYETHYLENE MANUFACTURING 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
- 7Evaluations since January 1, 2017
- 4Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| May 13, 2025 | FCE On-Site | State | MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| September 29, 2021 | FCE On-Site | State | MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| March 19, 2019 | FCE On-Site | State | MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| December 5, 2018 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| August 8, 2018 | PCE Off-Site | State | MACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| April 29, 2018 | PCE Off-Site | U.S. EPA | Federal Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| February 20, 2017 | FCE On-Site | State | MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
Violations
- 0Violation 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.
EPA’s violation history file holds no violation for ICIS-AIR LA0000002201900127 since January 1, 2017.
Enforcement and penalties
6 formal enforcement actions since January 1, 2017, 4 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 |
|---|---|---|---|
| January 7, 2026 | Administrative Order | State | $55,000 |
| November 26, 2024 | Administrative Order | State | $30,000 |
| July 8, 2024 | Administrative Order | State | $0 |
| October 26, 2022 | Civil Judicial Action | U.S. EPA | $750,000 |
| April 4, 2019 | Administrative Order | State | $0 |
| February 24, 2017 | Administrative Order | State | $95,000 |
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| December 11, 2025 | Warning Letter | State |
| July 8, 2024 | Notice of Violation | State |
| October 5, 2023 | Warning Letter | State |
| April 4, 2019 | Notice of Violation | State |
Stack tests
- 0Stack tests since January 1, 2017
- 0Recorded as failed
EPA’s stack test file holds no test at ICIS-AIR LA0000002201900127 since January 1, 2017.
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 110000449587 there.
Nearby on the register
- Air-emissions sources in Calcasieu County
- Every source record in Calcasieu County, A to Z
- Air-emissions sources in Louisiana
- Every source record in Louisiana, A to Z
Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.