Clean Water Act discharge permit · NPDES LA0072001
GRAND COTEAU WASTEWATER TREATMENT FACILITY, Grand Coteau, LA: NPDES LA0072001 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
GRAND COTEAU WASTEWATER TREATMENT FACILITY, held by Town of Grand Coteau- Wastewater Treatment Facility, holds NPDES permit LA0072001, which discharges to Seg 060801 Vermilion-Teche R/B. EPA’s file records it issued January 31, 2018 and expiring February 28, 2023. 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 | GRAND COTEAU WASTEWATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | Town of Grand Coteau- Wastewater Treatment Facility |
| NPDES ID | LA0072001 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | January 31, 2018 |
| Expiration date | February 28, 2023 |
| Address | Grand Coteau, LA 70541 |
| Receiving water | SEG 060801 VERMILION-TECHE R/B |
| Subwatershed | Bayou Bourbeux-Grand Coteau (HUC 080801030103) |
| 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
- 10Pollutants on file
- 9Under a numeric limit
- 10With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 12 | 465 | 352 | June 30, 2026 | 1,247% over the limit |
| Coliform, fecal general | 4 | 323 | 251 | June 30, 2026 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 12 | 213 | 86 | June 30, 2026 | 782% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 12 | 146 | 24 | June 30, 2026 | 198% over the limit |
| Oxygen, dissolved [DO] | 2 | 50 | 7 | April 30, 2026 | 22% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 98 | 0 | ||
| pH | 4 | 84 | 0 | ||
| Nitrogen, total [as N] | 3 | 19 | 0 | ||
| Phosphorus, total [as P] | 3 | 19 | 0 | ||
| Sulfate, total [as SO4] | 0 | 15 | 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
- 11Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 31, 2025 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
| August 31, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| May 31, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| April 30, 2024 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
| March 5, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| December 31, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| August 11, 2022 | Management Practice Violations - Improper Operation and Maintenance | 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 |
| May 1, 2019 | Management Practice Violations - Failure to Maintain Records | ST6 |
| May 1, 2019 | 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.
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 LA0072001 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.