Clean Water Act discharge permit · NPDES LA0038059
WESTWEGO, CITY OF- WASTEWATER TREATMENT PLANT, Westwego, LA: NPDES LA0038059 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 17Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
WESTWEGO, CITY OF- WASTEWATER TREATMENT PLANT, held by City of Westwego- Wastewater Treatment Plant, holds NPDES permit LA0038059, which discharges to Wpca Canal. EPA’s file records it issued August 18, 2017 and expiring August 31, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | WESTWEGO, CITY OF- WASTEWATER TREATMENT PLANT |
|---|---|
| Permittee as filed | City of Westwego- Wastewater Treatment Plant |
| NPDES ID | LA0038059 |
| 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 18, 2017 |
| Expiration date | August 31, 2022 |
| Address | Westwego, LA 70094 |
| Receiving water | WPCA CANAL |
| Subwatershed | Westwego-Main Canal (HUC 080903010307) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 34Pollutants on file
- 17Under a numeric limit
- 31With 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 | 4 | 175 | 115 | March 31, 2026 | 99,999% over the limit |
| Solids, total suspended | 6 | 149 | 44 | July 31, 2026 | 120% over the limit |
| Nitrogen, ammonia total [as N] | 0 | 124 | 16 | November 30, 2008 | 213% over the limit |
| Chlorine, total residual | 0 | 41 | 11 | June 30, 2005 | 2,021% over the limit |
| BOD, 5-day, 20 deg. C | 6 | 16 | 10 | April 30, 2026 | 90% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 0 | 113 | 2 | September 30, 2006 | 33% over the limit |
| pH | 4 | 79 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 78 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 37 | 0 | ||
| Dibromochloromethane | 0 | 22 | 0 | ||
| Mercury, total [as Hg] | 0 | 22 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 21 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 20 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 0 | 20 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 0 | 20 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 20 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 0 | 20 | 0 | ||
| Benzidine | 0 | 10 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 4 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 0 | 4 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 0 | 4 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 0 | 4 | 0 | ||
| Nitrogen, total [as N] | 3 | 3 | 0 | ||
| Phosphorus, total [as P] | 3 | 3 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 2 | 2 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 2 | 2 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 2 | 2 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 2 | 2 | 0 | ||
| Priority pollutants scan [yes/no] | 1 | 1 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute D. pulex | 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 |
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
- 12Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 30, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| December 31, 2025 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| December 31, 2025 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| December 31, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| December 31, 2024 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| December 31, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| June 30, 2024 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| December 31, 2023 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| December 31, 2022 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| November 18, 2022 | Failure to develop, maintain, or get approval of an adequate SWPPP (industrial stormwater) | ST6 |
| November 18, 2022 | Management Practice Violations - Failure to Maintain Records | ST6 |
| December 31, 2019 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | 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 September 14, 2026.