Clean Water Act discharge permit · NPDES LA0068381
ST MARY PARISH WARDS 5&8 JOINT SEWER COMMISSION - REGIONAL SEWERAGE TREATMENT FA, Patterson, LA: NPDES LA0068381 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 18Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
ST MARY PARISH WARDS 5&8 JOINT SEWER COMMISSION - REGIONAL SEWERAGE TREATMENT FA, held by St. Mary Parish Wards 5 and 8 Joint Sewer Commission, holds NPDES permit LA0068381, which discharges to Seg 010803 Atchafalaya River Basin. EPA’s file records it issued September 7, 2018 and expiring September 30, 2023. 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 | ST MARY PARISH WARDS 5&8 JOINT SEWER COMMISSION - REGIONAL SEWERAGE TREATMENT FA |
|---|---|
| Permittee as filed | St. Mary Parish Wards 5 and 8 Joint Sewer Commission |
| NPDES ID | LA0068381 |
| 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 7, 2018 |
| Expiration date | September 30, 2023 |
| Address | Patterson, LA 70392 |
| Receiving water | SEG 010803 ATCHAFALAYA RIVER BASIN |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Bayou Teche-Lower Atchafalaya River (HUC 080801010502) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 20Pollutants on file
- 18Under a numeric limit
- 18With a violation of any kind
- 8With 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 | 103 | 37 | July 31, 2026 | 1,795% over the limit |
| BOD, 5-day, 20 deg. C | 5 | 125 | 36 | July 31, 2018 | 124% over the limit |
| Chlordane | 4 | 51 | 17 | September 30, 2025 | 38,800% over the limit |
| Solids, total suspended | 5 | 100 | 11 | May 31, 2011 | 51% over the limit |
| Chlorine, total residual | 1 | 7 | 3 | December 31, 2025 | 1,100% over the limit |
| pH | 4 | 63 | 1 | May 31, 2000 | |
| BOD, percent removal [total] | 0 | 2 | 1 | December 31, 2025 | 7% over the limit |
| Solids, suspended percent removal | 0 | 2 | 1 | December 31, 2025 | 287% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 70 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 2 | 28 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 2 | 28 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 2 | 24 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 2 | 24 | 0 | ||
| Nitrogen, total [as N] | 3 | 15 | 0 | ||
| Phosphorus, total [as P] | 3 | 15 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | 1 | 10 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute D. pulex | 1 | 7 | 0 | ||
| Whole effluent toxicity - retest #2 | 4 | 2 | 0 | ||
| Whole effluent toxicity - retest #1 | 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
- 7Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 31, 2025 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| September 30, 2025 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| April 30, 2025 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| March 31, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| January 31, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| February 18, 2020 | Management Practice Violations - Failure to Maintain Records | ST6 |
| February 18, 2020 | WW Storm Water Non-Construction - Failure to Implement SWPPP/SWMP | 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 LA0068381 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.