Clean Water Act discharge permit · NPDES LA0005231
PIONEER CHLOR ALKALI CO., INC, St. Gabriel, LA: NPDES LA0005231 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 24Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
PIONEER CHLOR ALKALI CO., INC, held by PIONEER AMERICAS, LLC., holds NPDES permit LA0005231, which discharges to Mississippi River. EPA’s file records it issued July 26, 2013 and expiring July 31, 2018. 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 | PIONEER CHLOR ALKALI CO., INC |
|---|---|
| Permittee as filed | PIONEER AMERICAS, LLC. |
| NPDES ID | LA0005231 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | July 26, 2013 |
| Expiration date | July 31, 2018 |
| Address | St. Gabriel, LA 70776 |
| Receiving water | MISSISSIPPI RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Bayou Braud (HUC 080702020801) |
| SIC | 2812 – Alkalies And Chlorine |
| Other EPA IDs (FRS) | RCRA handler LAD062666540; ICIS-AIR source LA0000002204700011 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 24Pollutants on file
- 24Under a numeric limit
- 20With a violation of any kind
- 8With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 6 | 12 | 12 | December 31, 2025 | 213% over the limit |
| Coliform, fecal general | 4 | 8 | 8 | September 30, 2024 | 99,999% over the limit |
| Mercury, total [as Hg] | 3 | 8 | 8 | September 30, 2024 | 144% over the limit |
| Chlorine, total residual | 2 | 5 | 3 | October 31, 2024 | 1,123% over the limit |
| Carbon, tot organic [TOC] | 2 | 4 | 2 | October 31, 2020 | 192% over the limit |
| pH | 4 | 4 | 1 | January 31, 2023 | |
| Nickel, total [as Ni] | 2 | 1 | 1 | April 30, 2015 | 14% over the limit |
| Oil and grease | 2 | 1 | 1 | September 30, 2009 | 120% over the limit |
| Whole effluent toxicity - retest #1 | 2 | 6 | 0 | ||
| Whole effluent toxicity - retest #2 | 2 | 6 | 0 | ||
| Whole Effluent Toxicity - Retest #3 | 2 | 6 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 2 | 5 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 2 | 5 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 2 | 5 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 2 | 5 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute D. pulex | 2 | 4 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | 2 | 4 | 0 | ||
| Copper, total [as Cu] | 2 | 2 | 0 | ||
| pH range excursions, > 60 minutes | 1 | 2 | 0 | ||
| pH range excursions, monthly total accum | 1 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 8 | 0 | 0 | ||
| BOD, 5-day, 20 deg. C | 4 | 0 | 0 | ||
| Chloride [as Cl] | 4 | 0 | 0 | ||
| Lead, total [as Pb] | 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 LA0005231.
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, LA0005231.
Start the watch
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How we handle your data → Privacy
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 LA0005231 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.