Clean Water Act discharge permit · NPDES LA0041718
UOP LLC, Baton Rouge, LA: NPDES LA0041718 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 18Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
UOP LLC, held by UOP LLC - Baton Rouge Plant, holds NPDES permit LA0041718, which discharges to Monte Sano Bayou. EPA’s file records it issued August 10, 2015 and expiring September 30, 2020. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | UOP LLC |
|---|---|
| Permittee as filed | UOP LLC - Baton Rouge Plant |
| NPDES ID | LA0041718 |
| 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 10, 2015 |
| Expiration date | September 30, 2020 |
| Address | Baton Rouge, LA 70805 |
| Receiving water | MONTE SANO BAYOU |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Manchac Point (HUC 080701000104) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 22Pollutants on file
- 18Under a numeric limit
- 18With 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 |
|---|---|---|---|---|---|
| pH | 14 | 68 | 27 | December 31, 2023 | |
| Solids, total suspended | 4 | 49 | 14 | December 31, 2025 | 907% over the limit |
| Coliform, fecal general | 2 | 37 | 9 | June 30, 2026 | 1,300% over the limit |
| Carbon, tot organic [TOC] | 7 | 23 | 5 | October 31, 2023 | 874% over the limit |
| Oil & Grease | 7 | 19 | 3 | April 30, 2026 | 292% over the limit |
| pH range excursions, > 60 minutes | 0 | 2 | 2 | November 30, 1996 | 99,999% over the limit |
| pH range excursions, monthly total accum | 0 | 2 | 2 | November 30, 1996 | 235% over the limit |
| Flow, in conduit or thru treatment plant | 22 | 82 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 4 | 12 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 4 | 12 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 4 | 12 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 4 | 12 | 0 | ||
| Whole Effluent Toxicity [WET] - D. pulex | 0 | 10 | 0 | ||
| Whole Effluent Toxicity [WET] - P. promelas | 0 | 10 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 7 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute D. pulex | 2 | 7 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | 2 | 7 | 0 | ||
| Oil and grease | 7 | 2 | 0 | ||
| Whole effluent toxicity - retest #1 | 8 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 8 | 0 | 0 | ||
| Whole Effluent Toxicity - Retest #3 | 8 | 0 | 0 | ||
| Copper, total [as Cu] | 4 | 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 LA0041718.
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 LA0041718 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.