Clean Water Act discharge permit · NPDES LA0097691
MARTCO LLC - CHOPIN PLYWOOD PLANT, Chopin, LA: NPDES LA0097691 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 16Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
MARTCO LLC - CHOPIN PLYWOOD PLANT, held by MARTCO LLC, holds NPDES permit LA0097691, which discharges to Bayou Barbue. EPA’s file records it issued September 7, 2018 and expiring September 30, 2023. 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 | MARTCO LLC - CHOPIN PLYWOOD PLANT |
|---|---|
| Permittee as filed | MARTCO LLC |
| NPDES ID | LA0097691 |
| 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 | September 7, 2018 |
| Expiration date | September 30, 2023 |
| Address | Chopin, LA 71447 |
| Receiving water | BAYOU BARBUE |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Bayou Barbue (HUC 111402070502) |
| SIC | 2436 – Softwood Veneer And Plywood |
| Other EPA IDs (FRS) | RCRA handler LAR000055194; ICIS-AIR source LA0000002206900027 |
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
- 17Pollutants on file
- 16Under a numeric limit
- 5With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 6 | 3 | 3 | September 30, 2020 | 50% over the limit |
| Coliform, fecal general | 4 | 2 | 2 | December 31, 2023 | 22% over the limit |
| Zinc, total [as Zn] | 2 | 2 | 2 | June 30, 2021 | 709% over the limit |
| Oxygen demand, chem. [high level] [COD] | 1 | 1 | 1 | May 31, 2025 | 3% over the limit |
| Chlorine, total residual | 0 | 4 | 0 | ||
| pH | 10 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 10 | 0 | 0 | ||
| Solids, total suspended | 6 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 0 | 0 | ||
| Phosphorus, total [as P] | 2 | 0 | 0 | ||
| Chloride [as Cl] | 2 | 0 | 0 | ||
| Phenol | 2 | 0 | 0 | ||
| Solids, total dissolved | 2 | 0 | 0 | ||
| p-Cresol | 2 | 0 | 0 | ||
| Benzoic acids, total | 2 | 0 | 0 | ||
| Carbon, tot organic [TOC] | 1 | 0 | 0 | ||
| Oil and grease | 1 | 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 LA0097691.
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.
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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 LA0097691 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.