Clean Water Act discharge permit · NPDES LA0127142
GNL CONTRACTORS LLC, Slidell, LA: NPDES LA0127142 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
GNL CONTRACTORS LLC holds NPDES permit LA0127142. EPA’s file records it issued April 26, 2017 and expiring May 31, 2022. 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 | GNL CONTRACTORS LLC |
|---|---|
| Permittee as filed | GNL CONTRACTORS LLC |
| NPDES ID | LA0127142 |
| 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 | April 26, 2017 |
| Expiration date | May 31, 2022 |
| Address | Slidell, LA 70461 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Pearlington-Pearl River (HUC 031800041005) |
| SIC | 3281 – Cut Stone And Stone 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
- 7Pollutants on file
- 7Under a numeric limit
- 5With a violation of any kind
- 2With 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 | 4 | 8 | 6 | December 31, 2023 | 1,100% over the limit |
| pH | 4 | 8 | 2 | June 30, 2020 | |
| Flow, in conduit or thru treatment plant | 4 | 4 | 0 | ||
| Oxygen demand, chem. [high level] [COD] | 2 | 2 | 0 | ||
| Oil & Grease | 1 | 1 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 0 | 0 | ||
| Coliform, fecal general | 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 LA0127142.
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 LA0127142 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.