Clean Water Act discharge permit · NPDES MS0025836
LOUISVILLE POTW, SOUTH, Louisville, MS: NPDES MS0025836 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 11Pollutants with an effluent exceedance
LOUISVILLE POTW, SOUTH holds NPDES permit MS0025836, which discharges to Hughes Creek. EPA’s file records it issued March 7, 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 | LOUISVILLE POTW, SOUTH |
|---|---|
| Permittee as filed | LOUISVILLE POTW, SOUTH |
| NPDES ID | MS0025836 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 7, 2018 |
| Expiration date | February 28, 2023 |
| Issuing agency | MDEQ |
| Address | Louisville, MS 39339 |
| Receiving water | HUGHES CREEK |
| Subwatershed | Hughes Creek (HUC 031800010103) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 13Pollutants on file
- 12Under a numeric limit
- 12With a violation of any kind
- 11With 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, 5-day, 20 deg. C | 4 | 7 | 7 | December 31, 2018 | 8,174% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 5 | 5 | March 31, 2002 | 23% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 4 | 4 | December 31, 2020 | 88% over the limit |
| Phosphorus, total [as P] | 2 | 4 | 4 | December 31, 2025 | 85% over the limit |
| BOD, 5-day, percent removal | 1 | 4 | 4 | December 31, 2024 | 567% over the limit |
| Solids, total suspended | 4 | 3 | 3 | December 31, 2016 | 5,415% over the limit |
| Nitrogen, total [as N] | 2 | 2 | 2 | December 31, 2025 | 13% over the limit |
| Solids, suspended percent removal | 1 | 2 | 2 | December 31, 2018 | 99% over the limit |
| E. coli | 2 | 3 | 1 | December 31, 2024 | 175% over the limit |
| pH | 2 | 1 | 1 | June 30, 2000 | |
| Chlorine, total residual | 2 | 1 | 1 | December 31, 2011 | 2,005% over the limit |
| Coliform, fecal general | 0 | 4 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| February 11, 2026 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| February 11, 2026 | 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.
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, MS0025836.
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 MS0025836 there.
Nearby on the register
- Discharge permits in Louisville
- Every permit record in Louisville, A to Z
- Discharge permits in Mississippi
- Every permit record in Mississippi, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.