Clean Water Act discharge permit · NPDES LA0104523
CAL-CHLOR CORP - OPELOUSAS PLANT, Opelousas, LA: NPDES LA0104523 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
CAL-CHLOR CORP - OPELOUSAS PLANT, held by CAL-CHLOR CORPORATION, holds NPDES permit LA0104523, which discharges to Bayou Plaquemine Brule. EPA’s file records it issued August 18, 2020 and expiring August 31, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | CAL-CHLOR CORP - OPELOUSAS PLANT |
|---|---|
| Permittee as filed | CAL-CHLOR CORPORATION |
| NPDES ID | LA0104523 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 18, 2020 |
| Expiration date | August 31, 2025 |
| Address | Opelousas, LA 70570 |
| Receiving water | BAYOU PLAQUEMINE BRULE |
| Subwatershed | West Fork-Bayou Plaquemine Brule (HUC 080802010201) |
| SIC | 5169 – Chemicals & Allied Products |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 5Pollutants on file
- 5Under a numeric limit
- 1With a violation of any kind
- 1With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Chloride [as Cl] | 2 | 1 | 1 | December 31, 2022 | 12% over the limit |
| pH | 4 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 0 | 0 | ||
| Oil & Grease | 2 | 0 | 0 | ||
| Carbon, tot organic [TOC] | 2 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES LA0104523.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID LA0104523 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.