Clean Water Act discharge permit · NPDES LA0005924
ARROW SPECIALTIES USA, LLC - PONTCHARTRAIN SITE, Laplace, LA: NPDES LA0005924 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 26Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
ARROW SPECIALTIES USA, LLC - PONTCHARTRAIN SITE, held by E.I. DuPont de Nemours and Company - Pontchartrain Site, holds NPDES permit LA0005924, which discharges to Seg 070301 Mississippi River Basin. EPA’s file records it issued January 31, 2013 and expiring February 28, 2018.
ARROW SPECIALTIES USA, LLC - PONTCHARTRAIN SITE, Laplace, Louisiana: Individual permit LA0005924, held by E.I. DuPont de Nemours and Company - Pontchartrain Site; Administratively continued (past its expiration date and still in force until reissued); issued January 31, 2013, term to February 28, 2018; discharges to SEG 070301 MISSISSIPPI RIVER BASIN.
- Coliform, fecal general: 2 limits, 8 violations of any kind, 8 effluent exceedances, latest October 31, 2012, largest 2,050% over the limit.
- Chloroprene: 2 limits, 4 violations of any kind, 4 effluent exceedances, latest April 30, 2010, largest 248% over the limit.
- pH range excursions, > 60 minutes: 1 limit, 4 violations of any kind, 4 effluent exceedances, latest June 30, 2013, largest 2,147,483,650% over the limit.
- pH: 14 limits, 22 violations of any kind, 2 effluent exceedances, latest August 31, 2007.
- pH range excursions, monthly total accum: 1 limit, 2 violations of any kind, 2 effluent exceedances, latest October 31, 2008, largest 1,487% over the limit.
- Carbon, tot organic [TOC]: 10 limits, 12 violations of any kind, 1 effluent exceedance, latest July 31, 2016, largest 106% over the limit.
- BOD, 5-day, 20 deg. C: 2 limits, 1 violation of any kind, 1 effluent exceedance, latest March 31, 2015, largest 148% over the limit.
- Flow, in conduit or thru treatment plant: 24 limits, 21 violations of any kind, 0 effluent exceedances.
- Oil and grease: 11 limits, 11 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Solids, total suspended: 3 limits, 3 violations of any kind, 0 effluent exceedances.
- Lead, total [as Pb]: 1 limit, 3 violations of any kind, 0 effluent exceedances.
- Benzene: 1 limit, 3 violations of any kind, 0 effluent exceedances.
- Zinc, total [as Zn]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Coef Of Var Static Renewal 48Hr Acute D. pulex: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Benzene, ethylbenzene, toluene, xylene combination: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Oxygen demand, chem. [high level] [COD]: 2 limits, 1 violation of any kind, 0 effluent exceedances.
- Phenolics, total recoverable: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Toluene: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- BTEX: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Coef Of Var Static Renewal 48Hr Acute Pimephales promelas: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #1: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #2: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Whole Effluent Toxicity - Retest #3: 4 limits, 0 violations of any kind, 0 effluent exceedances.
ARROW SPECIALTIES USA, LLC - PONTCHARTRAIN SITE among its neighbors
EPA’s permit file holds 7 discharge permits in the Reserve Relief Canal subwatershed (HUC 080702040301), LA0005924 among them. Its county holds 49, 9 of them major permits; LA0005924 is a major permit.
Other permits in the Reserve Relief Canal subwatershed (HUC 080702040301)
- BELLE POINT SEWER PLANT, Reserve: LA0065951, minor permit, discharging to SUNNYSIDE CANAL-LAKE MAUREPAS, permit term to February 28, 2021
- RESERVE FACILITY, Reserve: LA0070777, minor permit, permit term to January 31, 2009
- RUDDOCK WELL TREATMENT FACILITY, Laplace: LA0121509, minor permit, permit term to September 30, 2016
- ST JOHN THE BAPTIST PAR-SD #2L, Laplace: LAL064092, major permit, discharging to VICKNAIR CANAL, permit term to December 31, 2025
- ST JOHN THE BAPTIST PARISH - WOODLAND DRIVE STP, Laplace: LA0064092, major permit, permit term to September 30, 2030
- ST JOHN THE BAPTIST RVR.RDSTP, La Place: LAL069868, major permit, discharging to MISSISSIPPI RIVER, permit term to December 31, 2025
Identity
| Facility as filed | ARROW SPECIALTIES USA, LLC - PONTCHARTRAIN SITE |
|---|---|
| Permittee as filed | E.I. DuPont de Nemours and Company - Pontchartrain Site |
| NPDES ID | LA0005924 |
| 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 | January 31, 2013 |
| Expiration date | February 28, 2018 |
| Address | Laplace, LA 70068 |
| Receiving water | SEG 070301 MISSISSIPPI RIVER BASIN |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Reserve Relief Canal (HUC 080702040301) |
| Other EPA IDs (FRS) | RCRA handler LAR000009415; ICIS-AIR source LA0000002209500063 |
Effluent limits and exceedances
- 27Pollutants on file
- 26Under a numeric limit
- 24With a violation of any kind
- 7With 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 |
|---|---|---|---|---|---|
| Coliform, fecal general | 2 | 8 | 8 | October 31, 2012 | 2,050% over the limit |
| Chloroprene | 2 | 4 | 4 | April 30, 2010 | 248% over the limit |
| pH range excursions, > 60 minutes | 1 | 4 | 4 | June 30, 2013 | 2,147,483,650% over the limit |
| pH | 14 | 22 | 2 | August 31, 2007 | |
| pH range excursions, monthly total accum | 1 | 2 | 2 | October 31, 2008 | 1,487% over the limit |
| Carbon, tot organic [TOC] | 10 | 12 | 1 | July 31, 2016 | 106% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 1 | 1 | March 31, 2015 | 148% over the limit |
| Flow, in conduit or thru treatment plant | 24 | 21 | 0 | ||
| Oil and grease | 11 | 11 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 2 | 4 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 2 | 4 | 0 | ||
| Solids, total suspended | 3 | 3 | 0 | ||
| Lead, total [as Pb] | 1 | 3 | 0 | ||
| Benzene | 1 | 3 | 0 | ||
| Zinc, total [as Zn] | 2 | 2 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 2 | 2 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 2 | 2 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute D. pulex | 1 | 2 | 0 | ||
| Benzene, ethylbenzene, toluene, xylene combination | 0 | 2 | 0 | ||
| Oxygen demand, chem. [high level] [COD] | 2 | 1 | 0 | ||
| Phenolics, total recoverable | 1 | 1 | 0 | ||
| Toluene | 1 | 1 | 0 | ||
| BTEX | 1 | 1 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | 1 | 1 | 0 | ||
| Whole effluent toxicity - retest #1 | 4 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 4 | 0 | 0 | ||
| Whole Effluent Toxicity - Retest #3 | 4 | 0 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES LA0005924.
Inspections
EPA’s inspection file holds no inspection for NPDES LA0005924.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES LA0005924.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.