Clean Water Act discharge permit · NPDES LA0119466
SEWERAGE DISTRICT #1 OF TANGIPAHOA PARISH - NORTHWEST HAMMOND TREATMENT FACILITY, Hammond, LA: NPDES LA0119466 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
SEWERAGE DISTRICT #1 OF TANGIPAHOA PARISH - NORTHWEST HAMMOND TREATMENT FACILITY, held by Sewerage District #1 of Tangipahoa Parish - Northwest Hammond Treatment Facility, holds NPDES permit LA0119466. EPA’s file records it issued March 2, 2026 and expiring July 31, 2028. 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 | SEWERAGE DISTRICT #1 OF TANGIPAHOA PARISH - NORTHWEST HAMMOND TREATMENT FACILITY |
|---|---|
| Permittee as filed | Sewerage District #1 of Tangipahoa Parish - Northwest Hammond Treatment Facility |
| NPDES ID | LA0119466 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 2, 2026 |
| Expiration date | July 31, 2028 |
| Issuing agency | LDEQ |
| Address | Hammond, LA 70403 |
| Subwatershed | Yellow Water River (HUC 080702030304) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 8Under a numeric limit
- 10With a violation of any kind
- 7With 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 | 3 | 192 | 186 | April 30, 2026 | 432% over the limit |
| Nitrogen, ammonia total [as N] | 3 | 110 | 101 | May 31, 2026 | 302% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 50 | 44 | March 31, 2026 | 43,984% over the limit |
| Coliform, fecal general | 2 | 36 | 32 | May 31, 2026 | 99,999% over the limit |
| Oxygen, dissolved [DO] | 1 | 30 | 28 | September 30, 2025 | 67% over the limit |
| Solids, total dissolved | 0 | 18 | 16 | February 28, 2023 | 838% over the limit |
| pH | 2 | 5 | 1 | December 31, 2023 | |
| Nitrogen, total [as N] | 0 | 5 | 0 | ||
| Phosphorus, total [as P] | 0 | 5 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 4 | 0 | ||
| Chlorine, total residual | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 9, 2019 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| December 31, 2017 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| May 31, 2017 | Permit Violations - Failure to Submit Timely Permit Renewal Application | 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 LA0119466 there.
Nearby on the register
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- Every permit record in Louisiana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.