Clean Water Act discharge permit · NPDES LA0124176
NATIONAL WATER INFRASTRUCTURE LLC - SHADOWS OF ASCENSION WWTP, Prairieville, LA: NPDES LA0124176 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
NATIONAL WATER INFRASTRUCTURE LLC - SHADOWS OF ASCENSION WWTP, held by NATIONAL WATER INFRASTRUCTURE, LLC - SHADOWS OF ASCENSION, holds NPDES permit LA0124176. EPA’s file records it issued September 25, 2020 and expiring September 30, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | NATIONAL WATER INFRASTRUCTURE LLC - SHADOWS OF ASCENSION WWTP |
|---|---|
| Permittee as filed | NATIONAL WATER INFRASTRUCTURE, LLC - SHADOWS OF ASCENSION |
| NPDES ID | LA0124176 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 25, 2020 |
| Expiration date | September 30, 2025 |
| Address | Prairieville, LA 70769 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Clay Cut Bayou-Amite River (HUC 080702020904) |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 10Pollutants on file
- 9Under a numeric limit
- 6With 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 |
|---|---|---|---|---|---|
| Chlorine, total residual | 1 | 62 | 35 | November 30, 2025 | 8,991% over the limit |
| Coliform, fecal general | 2 | 28 | 28 | November 30, 2025 | 99,999% over the limit |
| Solids, total suspended | 3 | 22 | 22 | February 28, 2026 | 1,113% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 17 | 17 | February 28, 2026 | 279% over the limit |
| Nitrogen, ammonia total [as N] | 3 | 9 | 9 | February 28, 2026 | 205% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 8 | 8 | April 30, 2015 | 100% over the limit |
| Nitrogen, total [as N] | 3 | 0 | 0 | ||
| Phosphorus, total [as P] | 3 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES LA0124176.
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 LA0124176 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.