Clean Water Act discharge permit · NPDES LA0126225
MAGNOLIA WATER UTILITY OPERATING CO., LLC- ARBOR WALK WWTP, Denham Springs, LA: NPDES LA0126225 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
MAGNOLIA WATER UTILITY OPERATING CO., LLC- ARBOR WALK WWTP, held by MAGNOLIA WATER UTILITY OPERATING CO., LLC, holds NPDES permit LA0126225. EPA’s file records it issued January 31, 2018 and expiring February 28, 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 | MAGNOLIA WATER UTILITY OPERATING CO., LLC- ARBOR WALK WWTP |
|---|---|
| Permittee as filed | MAGNOLIA WATER UTILITY OPERATING CO., LLC |
| NPDES ID | LA0126225 |
| 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 | January 31, 2018 |
| Expiration date | February 28, 2023 |
| Address | Denham Springs, LA 70727 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | West Colyell Creek-Middle Colyell Creek (HUC 080702020702) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 11Under a numeric limit
- 7With 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 |
|---|---|---|---|---|---|
| BOD, carbonaceous [5 day, 20 C] | 6 | 190 | 181 | March 31, 2025 | 99,999% over the limit |
| Solids, total suspended | 6 | 145 | 139 | August 31, 2024 | 1,291% over the limit |
| Nitrogen, ammonia total [as N] | 6 | 131 | 122 | June 30, 2025 | 1,635% over the limit |
| Coliform, fecal general | 4 | 120 | 117 | February 28, 2025 | 99,999% over the limit |
| Oxygen, dissolved [DO] | 2 | 10 | 7 | August 31, 2024 | 60% over the limit |
| pH | 4 | 1 | 1 | January 31, 2017 | |
| Flow, in conduit or thru treatment plant | 4 | 3 | 0 | ||
| Nitrogen, total [as N] | 3 | 0 | 0 | ||
| Phosphorus, total [as P] | 3 | 0 | 0 | ||
| Solids, total dissolved | 3 | 0 | 0 | ||
| Solids, total dissolved [TDS] | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 30, 2018 | Management Practice Violations - Failure to Maintain Records | ST6 |
| May 31, 2018 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| January 31, 2017 | Reporting Violations - Improper/ Incorrect Reporting | 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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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 LA0126225 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.