Clean Water Act discharge permit · NPDES LA0057401
LINWOOD SUBDIVISION EAST, Opelousas, LA: NPDES LA0057401 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
LINWOOD SUBDIVISION EAST, held by ST LANDRY PARISH DISTRICT NO.1, holds NPDES permit LA0057401. EPA’s file records it issued October 18, 2016 and expiring November 30, 2021. 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 | LINWOOD SUBDIVISION EAST |
|---|---|
| Permittee as filed | ST LANDRY PARISH DISTRICT NO.1 |
| NPDES ID | LA0057401 |
| 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 | October 18, 2016 |
| Expiration date | November 30, 2021 |
| Address | Opelousas, LA 70570 |
| Subwatershed | Bayou Bourbeux (HUC 080801030101) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 9Pollutants on file
- 9Under a numeric limit
- 9With 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 | 6 | 69 | 60 | October 31, 2025 | 148% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 6 | 56 | 47 | May 31, 2024 | 293% over the limit |
| Coliform, fecal general | 4 | 48 | 42 | June 30, 2026 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 6 | 28 | 19 | December 31, 2020 | 79% over the limit |
| Oxygen, dissolved [DO] | 2 | 4 | 1 | July 31, 2018 | 35% over the limit |
| pH | 4 | 6 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 6 | 0 | ||
| Nitrogen, total [as N] | 6 | 3 | 0 | ||
| Phosphorus, total [as P] | 6 | 3 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 22, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES LA0057401.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES LA0057401.
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, LA0057401.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 LA0057401 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.