Clean Water Act discharge permit · NPDES LA0032948
THIBODAUX, CITY OF- WASTEWATER TREATMENT FACILITY, Thibodaux, LA: NPDES LA0032948 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 27Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
THIBODAUX, CITY OF- WASTEWATER TREATMENT FACILITY, held by City of Thibodaux- Wastewater Treatment Facility, holds NPDES permit LA0032948, which discharges to Phillips Canal/Terrebonne. EPA’s file records it issued August 31, 2017 and expiring September 30, 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 | THIBODAUX, CITY OF- WASTEWATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | City of Thibodaux- Wastewater Treatment Facility |
| NPDES ID | LA0032948 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | August 31, 2017 |
| Expiration date | September 30, 2022 |
| Address | Thibodaux, LA 70301 |
| Receiving water | PHILLIPS CANAL/TERREBONNE |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Phillips Canal-Terrebonne Lafourche Drainage Canal (HUC 080903020106) |
| SIC | 4952 – Sewerage Systems |
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
- 29Pollutants on file
- 27Under a numeric limit
- 26With a violation of any kind
- 6With 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 | 208 | 182 | June 30, 2026 | 99,999% over the limit |
| BOD, 5-day, 20 deg. C | 3 | 70 | 36 | August 31, 2024 | 67% over the limit |
| Cadmium, total [as Cd] | 8 | 41 | 22 | June 30, 2024 | 423% over the limit |
| Solids, total suspended | 3 | 44 | 7 | January 31, 2022 | 416% over the limit |
| Copper, total [as Cu] | 8 | 26 | 7 | December 31, 2023 | 65% over the limit |
| Mercury, total [as Hg] | 0 | 11 | 2 | November 30, 2000 | 246% over the limit |
| pH | 2 | 21 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 21 | 0 | ||
| Nitrogen, total [as N] | 3 | 9 | 0 | ||
| Phosphorus, total [as P] | 3 | 9 | 0 | ||
| Lead, total [as Pb] | 3 | 6 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 2 | 4 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 2 | 4 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 2 | 4 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 2 | 4 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute D. pulex | 1 | 4 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | 1 | 4 | 0 | ||
| Magnesium, total [as Mg] | 3 | 3 | 0 | ||
| Chromium, total [as Cr] | 3 | 3 | 0 | ||
| Iron, total [as Fe] | 3 | 3 | 0 | ||
| Nickel, total [as Ni] | 3 | 3 | 0 | ||
| Silver, total [as Ag] | 3 | 3 | 0 | ||
| Zinc, total [as Zn] | 3 | 3 | 0 | ||
| Selenium, total [as Se] | 3 | 3 | 0 | ||
| Chromium III | 0 | 3 | 0 | ||
| Wetlands Monitoring | 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 |
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
- 5Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 2, 2022 | Permit Violations - Failure to Submit Timely Permit Renewal Application | ST6 |
| December 31, 2020 | Permit Violations - Violation Specified in Comment | ST6 |
| December 31, 2019 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| March 22, 2019 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| March 24, 2017 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
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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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.