Clean Water Act discharge permit · NPDES LA0020541
PORT ALLEN CITY OF - WWTP, Port Allen, LA: NPDES LA0020541 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 17Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
PORT ALLEN CITY OF - WWTP, held by City of Port Allen- Port Allen Wastewater Treatment Plant, holds NPDES permit LA0020541, which discharges to Three Canals. EPA’s file records it issued January 31, 2020 and expiring February 28, 2025. 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 | PORT ALLEN CITY OF - WWTP |
|---|---|
| Permittee as filed | City of Port Allen- Port Allen Wastewater Treatment Plant |
| NPDES ID | LA0020541 |
| 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 | January 31, 2020 |
| Expiration date | February 28, 2025 |
| Address | Port Allen, LA 70767 |
| Receiving water | THREE CANALS |
| Subwatershed | Manchac Point (HUC 080701000104) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 18Pollutants on file
- 17Under a numeric limit
- 15With a violation of any kind
- 4With 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 | 88 | 64 | May 31, 2026 | 99,999% over the limit |
| pH | 2 | 34 | 11 | June 30, 2023 | |
| BOD, 5-day, 20 deg. C | 3 | 48 | 9 | April 30, 2024 | 335% over the limit |
| Solids, total suspended | 3 | 40 | 1 | February 29, 2020 | 32% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 36 | 0 | ||
| Priority pollutants scan [yes/no] | 1 | 11 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute D. pulex | 1 | 9 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | 1 | 9 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 2 | 8 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 2 | 8 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 2 | 8 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 2 | 8 | 0 | ||
| Phosphorus, total [as P] | 3 | 7 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 4 | 0 | ||
| Nitrogen, total [as N] | 3 | 3 | 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 |
|---|---|---|
| December 31, 2022 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| December 6, 2022 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| September 30, 2022 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| October 31, 2021 | WW SSO - Improper Operation and Maintenance | ST6 |
| May 19, 2021 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| May 19, 2021 | Management Practice Violations - Failure to Maintain Records | ST6 |
| December 31, 2019 | Monitoring Violations - Analysis not Conducted | ST6 |
| August 26, 2019 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| August 26, 2019 | Failure to properly install, initiate, or fully implement industrial stormwater controls | ST6 |
| August 26, 2019 | Failure to properly conduct industrial stormwater inspections | ST6 |
| December 31, 2018 | WW SSO - Improper Operation and Maintenance | ST6 |
| December 31, 2018 | Monitoring Violations - Analysis not Conducted | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, LA0020541.
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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 LA0020541 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.