Clean Water Act discharge permit · NPDES LA0044695
PONCHATOULA CITY OF - CITY OF PONCHATOULA WASTEWATER TREATMENT FACILITY, Ponchatoula, LA: NPDES LA0044695 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 26Pollutants under a numeric limit
- 11Pollutants with an effluent exceedance
PONCHATOULA CITY OF - CITY OF PONCHATOULA WASTEWATER TREATMENT FACILITY, held by City of Ponchatoula - Ponchatoula Wastewater Treatment Facility, holds NPDES permit LA0044695, which discharges to 4d. EPA’s file records it issued September 25, 2018 and expiring November 30, 2023. 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 | PONCHATOULA CITY OF - CITY OF PONCHATOULA WASTEWATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | City of Ponchatoula - Ponchatoula Wastewater Treatment Facility |
| NPDES ID | LA0044695 |
| 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 | September 25, 2018 |
| Expiration date | November 30, 2023 |
| Address | Ponchatoula, LA 70454 |
| Receiving water | 4D |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Selsers Creek (HUC 080702040501) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 27Pollutants on file
- 26Under a numeric limit
- 22With a violation of any kind
- 11With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 3 | 479 | 464 | December 31, 2025 | 973% over the limit |
| Solids, total suspended | 3 | 284 | 271 | May 31, 2025 | 480% over the limit |
| Coliform, fecal general | 2 | 113 | 101 | September 30, 2025 | 99,999% over the limit |
| Oxygen, dissolved [DO] | 1 | 99 | 93 | October 31, 2025 | 60% over the limit |
| Chlordane | 4 | 36 | 26 | September 30, 2025 | 2,253,686% over the limit |
| Cyanide, total [as CN] | 4 | 15 | 10 | December 31, 2025 | 1,080% over the limit |
| Whole Effluent Toxicity [WET] - P. promelas | 2 | 6 | 6 | September 30, 2022 | 99% over the limit |
| Lead, total [as Pb] | 0 | 16 | 4 | July 31, 2007 | 117% over the limit |
| Whole Effluent Toxicity [WET] - C. dubia | 2 | 4 | 4 | June 30, 2022 | 100% over the limit |
| pH | 2 | 15 | 3 | March 31, 2026 | |
| Mercury, total [as Hg] | 8 | 1 | 1 | December 31, 2023 | 57% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 14 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 8 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 2 | 6 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 6 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 2 | 6 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 6 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 6 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 1 | 3 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 2 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 2 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 1 | 1 | 0 | ||
| Copper, total [as Cu] | 8 | 0 | 0 | ||
| Nitrogen, total [as N] | 3 | 0 | 0 | ||
| Phosphorus, total [as P] | 3 | 0 | 0 | ||
| Chloride [as Cl] | 3 | 0 | 0 | ||
| Solids, total dissolved | 3 | 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
- 46Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| September 30, 2025 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
| July 30, 2025 | Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)] | ST6 |
| July 30, 2025 | Failure to properly operate and maintain the sanitary sewer system [40 CFR 122.41(e)] | ST6 |
| May 31, 2025 | Reporting Violations - Failure to Submit DMRs | ST6 |
| April 30, 2025 | Reporting Violations - Failure to Submit DMRs | ST6 |
| March 20, 2025 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| March 20, 2025 | Failure to develop, maintain, or get approval of an adequate SWPPP (industrial stormwater) | ST6 |
| March 20, 2025 | Failure to properly install, initiate, or fully implement industrial stormwater controls | ST6 |
| September 30, 2024 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
| June 30, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| April 30, 2024 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| December 1, 2023 | Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)] | ST6 |
| December 1, 2023 | Failure to properly operate and maintain the sanitary sewer system [40 CFR 122.41(e)] | ST6 |
| August 22, 2023 | Pretreatment - Failure to submit required report (non-DMR) | ST6 |
| August 22, 2023 | Failure to develop, maintain, or get approval of an adequate SWPPP (industrial stormwater) | ST6 |
| July 8, 2023 | WW SSO - Improper Operation and Maintenance | ST6 |
| July 8, 2023 | WW SSO - Discharge to Waters | ST6 |
| June 30, 2023 | Effluent Violations - Failed Toxicity Test | ST6 |
| June 30, 2023 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| June 30, 2023 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| September 30, 2022 | Reporting Violations - Failure to Submit DMRs | ST6 |
| July 31, 2022 | Reporting Violations - Failure to Submit DMRs | ST6 |
| May 31, 2022 | Monitoring Violations - Frequency of Sampling Violation | ST6 |
| March 30, 2022 | Management Practice Violations - Failure to Maintain Records | ST6 |
| March 30, 2022 | Failure to comply with recordkeeping requirements - industrial stormwater [40 CFR 122.41(j)] | ST6 |
| March 30, 2022 | Pretreatment - Failure to submit required report (non-DMR) | ST6 |
| February 28, 2022 | Monitoring Violations - Frequency of Sampling Violation | ST6 |
| February 3, 2022 | WW SSO - Improper Operation and Maintenance | ST6 |
| February 3, 2022 | WW SSO - Discharge to Waters | ST6 |
| December 31, 2021 | Effluent Violations - Failed Toxicity Test | ST6 |
| December 31, 2021 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| December 31, 2021 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| August 29, 2021 | WW SSO - Discharge to Waters | ST6 |
| August 29, 2021 | WW SSO - Improper Operation and Maintenance | ST6 |
| June 6, 2021 | WW SSO - Discharge to Waters | ST6 |
| June 6, 2021 | WW SSO - Improper Operation and Maintenance | ST6 |
| September 10, 2020 | Reporting Violations - Failure to Notify | ST6 |
| September 10, 2020 | Effluent Violations - Narrative Effluent Violation | ST6 |
| September 26, 2018 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| September 26, 2018 | WW Storm Water Non-Construction - Failure to Implement SWPPP/SWMP | ST6 |
| September 26, 2018 | Reporting Violations - Failure to Notify | ST6 |
| April 14, 2018 | WW SSO - Discharge to Waters | ST6 |
| April 14, 2018 | WW SSO - Improper Operation and Maintenance | ST6 |
| January 8, 2018 | WW SSO - Discharge to Waters | ST6 |
| January 8, 2018 | WW SSO - Improper Operation and Maintenance | ST6 |
| November 30, 2017 | Permit Violations - Application Incomplete | 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 15, 2026.