ICIS-AIR LA0000002200500210

METHANEX USA SERVICES LLC - GEISMAR METHANOL PLANT, Geismar, LA: Clean Air Act compliance record, inspections, violations, penalties

OperatingOperating status
Major sourceEmissions classification
No Violation IdentifiedCurrent violation status, as filed
5Compliance evaluations since January 1, 2017
0High-priority violations since January 1, 2017
1Formal enforcement actions since January 1, 2017

METHANEX USA SERVICES LLC - GEISMAR METHANOL PLANT is on EPA’s ICIS-AIR register at 4171 HWY 73 (FORMER GATE AT 4279), Geismar in Ascension County, Louisiana: operating status operating, emissions classification major source, current violation status “No Violation Identified”. Ascension County is on EPA’s Green Book list of areas that do not meet a national air quality standard.

What stands out

The newest of the 14 events on file is an informal enforcement action dated December 5, 2025.
Its events on file run from October 25, 2017 through December 5, 2025.
Of the 1 formal enforcement action on file, 0 carry a filed penalty above zero.
Of its 5 compliance evaluations on file, 3 are a full compliance evaluation.
The register holds 91 air-emissions sources in Ascension County, Louisiana.

Every line is computed by formula from the record’s stored figures; nothing is estimated.

Identity

Facility as filed	METHANEX USA SERVICES LLC - GEISMAR METHANOL PLANT
ICIS-AIR ID	LA0000002200500210
EPA facility registry ID	110046528227
Operating status	Operating
Emissions classification	Major source
Current violation status (HPV field)	No Violation Identified
Address	4171 HWY 73 (FORMER GATE AT 4279), Geismar, LA 70734
County	Ascension County
In a nonattainment county	Yes (EPA Green Book)
Industry (NAICS)	Chemical manufacturing (NAICS 3251)
SIC code	2869
EPA region	06

Programs and pollutants

The program, pollutant and Title V files are not loaded: what this page covers.

Compliance evaluations

5Evaluations since January 1, 2017
3Full compliance evaluations

Date	What EPA recorded	Agency	Programs
March 7, 2024	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 3, 2020	FCE On-Site	State	MACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
September 10, 2018	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
October 27, 2017	PCE On-Site	U.S. EPA	National Emission Standards for Hazardous Air Pollutants (40 CFR Part 61)
October 25, 2017	PCE On-Site Monitoring/Sampling	State	State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Violations

0Violation determinations since January 1, 2017
0Of them high-priority

What high-priority and federally reportable violations mean.

EPA’s violation history file holds no violation for ICIS-AIR LA0000002200500210 since January 1, 2017.

Enforcement and penalties

0 of the formal enforcement actions carry a penalty filed above zero. How a penalty is shown.

Date	What EPA recorded	Agency	Penalty, as filed
May 10, 2023	Administrative Order	State	$0

Informal enforcement

Date	What EPA recorded	Agency
December 5, 2025	Warning Letter	State
September 17, 2025	Notice of Violation	State
March 22, 2021	Warning Letter	State
March 25, 2019	Warning Letter	State
August 1, 2018	Warning Letter	State

Stack tests

3Stack tests since January 1, 2017
0Recorded as failed

Date	What EPA recorded	Agency
December 6, 2021	Pass	State
September 28, 2021	Pass	State
September 25, 2018	Pass	State

Watch METHANEX USA SERVICES LLC - GEISMAR METHANOL PLANT

Privacy

Free from EPA: Detailed Facility Report, ECHO Notify (registry ID 110046528227).

Other air sources in Louisiana beside METHANEX USA SERVICES LLC - GEISMAR METHANOL PLANT

EPA ICIS-AIR download, loaded September 14, 2026.