Clean Water Act discharge permit · NPDES LA0004090
ETHYL CORP - BATON ROUGE PLANT, Baton Rouge, LA: NPDES LA0004090 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 30Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
ETHYL CORP - BATON ROUGE PLANT, held by ETHYL CORP-BATON ROUGE, holds NPDES permit LA0004090, which discharges to 0701. EPA’s file records it issued August 18, 2020 and expiring August 31, 2025.
ETHYL CORP - BATON ROUGE PLANT, Baton Rouge, Louisiana: Individual permit LA0004090, held by ETHYL CORP-BATON ROUGE; Administratively continued (past its expiration date and still in force until reissued); issued August 18, 2020, term to August 31, 2025; discharges to 0701.
- pH: 6 limits, 23 violations of any kind, 7 effluent exceedances, latest September 30, 2024.
- pH range excursions, > 60 minutes: 2 limits, 14 violations of any kind, 5 effluent exceedances, latest June 30, 2012, largest 99,999% over the limit.
- Carbon, tot organic [TOC]: 2 limits, 8 violations of any kind, 3 effluent exceedances, latest September 30, 2024, largest 42% over the limit.
- pH range excursions, monthly total accum: 2 limits, 11 violations of any kind, 2 effluent exceedances, latest September 30, 2006, largest 393% over the limit.
- 1,1-Dichloroethane: 5 limits, 14 violations of any kind, 1 effluent exceedance, latest June 30, 2012, largest 127% over the limit.
- Lead, total [as Pb]: 7 limits, 17 violations of any kind, 0 effluent exceedances.
- 1,2-Dichloroethane: 5 limits, 13 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 6 limits, 12 violations of any kind, 0 effluent exceedances.
- Methylene chloride: 3 limits, 11 violations of any kind, 0 effluent exceedances.
- Solids, total suspended: 2 limits, 10 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #1: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #2: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- Tetrachloroethylene: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- 1,1,2-Trichloroethane: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- Trichloroethylene: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- Whole Effluent Toxicity - Retest #3: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- BOD, 5-day, 20 deg. C: 2 limits, 8 violations of any kind, 0 effluent exceedances.
- Toluene: 2 limits, 6 violations of any kind, 0 effluent exceedances.
- Benzene: 2 limits, 6 violations of any kind, 0 effluent exceedances.
- Chlorobenzene: 2 limits, 6 violations of any kind, 0 effluent exceedances.
- Ethylbenzene: 2 limits, 6 violations of any kind, 0 effluent exceedances.
- 1,1,1-Trichloroethane: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Coef Of Var Static Renewal 48Hr Acute Pimephales promelas: 1 limit, 4 violations of any kind, 0 effluent exceedances.
- Aluminum, total [as Al]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex: 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.
- Oil & Grease: 1 limit, 1 violation of any kind, 0 effluent exceedances.
ETHYL CORP - BATON ROUGE PLANT among its neighbors
EPA’s permit file holds 33 discharge permits in the Devils Swamp-Bayou Baton Rouge subwatershed (HUC 080702010402), LA0004090 among them. Its county holds 457, 22 of them major permits; LA0004090 is a major permit.
Other permits in the Devils Swamp-Bayou Baton Rouge subwatershed (HUC 080702010402)
- AIR PRODUCTS & CHEMICALS INC - BATON ROUGE H2 PLANT, Baton Rouge: LA0124397, minor permit, permit term to March 31, 2026
- AMERICAN CONSTRUCTION & DEMOLISHING CO - FORMER BANKS ELEMENTARY SCHOOL DEMO, Baton Rouge: LAR10Q697, minor permit, permit term to February 1, 2027
- ANGELLE CONCRETE GROUP LLC - PORTABLE PLANT #3, Baton Rouge: LAG119075, minor permit, permit term to June 4, 2029
- BANKSTON'S DITCH AREA, Baton Rouge: LA0118893, minor permit, permit term to October 31, 2024
- BATON ROUGE, CITY OF, Scotlandville: LA0036439, major permit, discharging to MISSISSIPPI RIVER, permit term to August 31, 2023
- BRANDON CRAFT DEVELOPERS LLC, Baton Rouge: LAR10J959, minor permit, permit term to September 30, 2017
- BURNS CONSTRUCTION GROUP, LLC - LONG FARM, Baton Rouge: LAR10Q716, minor permit, permit term to November 20, 2026
- CEMUS LLC, Baton Rouge: LA0002909, minor permit, discharging to MISS. RIVER & MONTE SANO BAYOU, permit term to October 31, 2020
- CHEVAL POINT DEVELOPMENT LLC, Baton Rouge: LAR10N551, minor permit, permit term to September 30, 2019
- COMMAND CONSTRUCTION INDUSTRIES, LLC - PLANK RD CORRIDOR ENHANCEMENT SEGMENT 2, Baton Rouge: LAR10Q447, minor permit, permit term to June 19, 2026
Identity
| Facility as filed | ETHYL CORP - BATON ROUGE PLANT |
|---|---|
| Permittee as filed | ETHYL CORP-BATON ROUGE |
| NPDES ID | LA0004090 |
| 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 | August 18, 2020 |
| Expiration date | August 31, 2025 |
| Address | Baton Rouge, LA 70805 |
| Receiving water | 0701 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Devils Swamp-Bayou Baton Rouge (HUC 080702010402) |
| SIC | 2869 – Industrial Organic Chemicals |
| Other EPA IDs (FRS) | RCRA handler LAD079460895; ICIS-AIR source LA0000002203300017 |
Effluent limits and exceedances
- 30Pollutants on file
- 30Under a numeric limit
- 30With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| pH | 6 | 23 | 7 | September 30, 2024 | |
| pH range excursions, > 60 minutes | 2 | 14 | 5 | June 30, 2012 | 99,999% over the limit |
| Carbon, tot organic [TOC] | 2 | 8 | 3 | September 30, 2024 | 42% over the limit |
| pH range excursions, monthly total accum | 2 | 11 | 2 | September 30, 2006 | 393% over the limit |
| 1,1-Dichloroethane | 5 | 14 | 1 | June 30, 2012 | 127% over the limit |
| Lead, total [as Pb] | 7 | 17 | 0 | ||
| 1,2-Dichloroethane | 5 | 13 | 0 | ||
| Flow, in conduit or thru treatment plant | 6 | 12 | 0 | ||
| Methylene chloride | 3 | 11 | 0 | ||
| Solids, total suspended | 2 | 10 | 0 | ||
| Whole effluent toxicity - retest #1 | 4 | 8 | 0 | ||
| Whole effluent toxicity - retest #2 | 4 | 8 | 0 | ||
| Tetrachloroethylene | 4 | 8 | 0 | ||
| 1,1,2-Trichloroethane | 4 | 8 | 0 | ||
| Trichloroethylene | 4 | 8 | 0 | ||
| Whole Effluent Toxicity - Retest #3 | 4 | 8 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 8 | 0 | ||
| Toluene | 2 | 6 | 0 | ||
| Benzene | 2 | 6 | 0 | ||
| Chlorobenzene | 2 | 6 | 0 | ||
| Ethylbenzene | 2 | 6 | 0 | ||
| 1,1,1-Trichloroethane | 1 | 5 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 2 | 4 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 2 | 4 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | 1 | 4 | 0 | ||
| Aluminum, total [as Al] | 2 | 2 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 2 | 2 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 2 | 2 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute D. pulex | 1 | 2 | 0 | ||
| Oil & Grease | 1 | 1 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES LA0004090.
Inspections
EPA’s inspection file holds no inspection for NPDES LA0004090.
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 LA0004090.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.