Data / Environmental compliance / Louisiana / Union Carbide Corp, ST Charles Plant
Union Carbide Corp, ST Charles Plant, LA: $384,800
Updated November 7, 2026. Source: US EPA, Enforcement and Compliance History Online (ECHO).
EPA's ECHO database records 9 inspections, 6 informal enforcement actions and 6 formal enforcement actions at Union Carbide Corp, ST Charles Plant, 355 Hwy 3142, Hahnville, LA 70057, in the five years to November 1, 2026. Penalties total $384,800, the latest $18,089 on January 31, 2025. The facility had violations in 2 of the last 12 quarters.
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- Site
- 355 Hwy 3142, Hahnville, LA 70057
- EPA registry ID (FRS)
- 110018861793
- Industry
- 211111 Oil and Gas Extraction; 32511 Petrochemical Manufacturing; 325110 Petrochemical Manufacturing; 325120 Industrial Gas Manufacturing
- County
- ST. Charles
- Programs
- Clean Air Act, Clean Water Act, Hazardous waste (RCRA)
- Compliance status
- No Violation Identified
- Inspections
- 9, latest September 11, 2026
- Formal actions
- 6, latest January 15, 2026
- Informal actions
- 6, latest March 20, 2026
- Penalties
- $384,800 in 5 penalties
- ECHO facility report
- echo.epa.gov
By program
Inspections, enforcement actions and penalties of the last five years in each EPA program that covers the facility, as the program systems record them. Federal case penalties are listed under federal enforcement cases. Quarters count the last 12.
| Program | Inspections | Informal actions | Formal actions | Penalties | Latest penalty | Latest amount | Quarters with violations | Quarters in significant noncompliance | Status |
|---|---|---|---|---|---|---|---|---|---|
| Clean Air Act | 4 | 6 | 5 | $381,889 | January 31, 2025 | $18,089 | 0 | 0 | No Violation Identified |
| Clean Water Act | 3 | 0 | 1 | $2,911 | January 31, 2025 | $2,911 | 2 | 0 | No Violation Identified |
| Hazardous waste (RCRA) | 2 | 0 | 0 | $0 | $9,000 | 0 | 0 | No Violation Identified |
Federal enforcement cases
EPA cases that name this facility, newest first. The penalty is the whole case penalty, shared with the other facilities named in the case.
| Case | Case name | Status date | Type | Status | Outcome | Statutes | Case penalty | Facilities in case | Source |
|---|---|---|---|---|---|---|---|---|---|
| 06-2024-3372 | Vopak Industrial Infrastructure Americas-St. Charles Terminal-Hahnville, LA-PAT CAFO FY2024 | September 16, 2024 | Administrative, Formal | Final Order Issued | Final Order With Penalty | Clean Air Act | $168,000 | 15 | echo.epa.gov |
EPA inspections and evaluations
Compliance monitoring EPA itself carried out, newest first. State inspections are counted above, with the date of the latest.
| Date | Activity | Type | Law |
|---|---|---|---|
| August 19, 2026 | Offsite Record Review | Data Audit | EPCRA |
Also on SpecStream
- Environmental compliance in Oil and Gas Extraction in Louisiana
- Environmental compliance in Louisiana
Public domain (U.S. government work). Counts and penalties cover the five years to November 1, 2026 as ECHO publishes them in its exporter and case downloads, drawn from EPA's air, water, hazardous waste and drinking water systems and from the states that report to them. Records can be incomplete, late or corrected after this page was read. A federal case penalty that names several facilities is shown on each of them and counted once in industry, state and national totals. Each row links to EPA's own report. A quarter in significant noncompliance is EPA's term for a serious violation status in a program, not a finding of fault beyond that status. This page uses US EPA data and is not endorsed or certified by the US EPA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.