Clean Water Act discharge permit · NPDES MS0021024
WINONA POTW, Winona, MS: NPDES MS0021024 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 16Pollutants under a numeric limit
- 14Pollutants with an effluent exceedance
WINONA POTW holds NPDES permit MS0021024, which discharges to Hays Creek. EPA’s file records it issued March 24, 2020 and expiring February 28, 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 | WINONA POTW |
|---|---|
| Permittee as filed | WINONA POTW |
| NPDES ID | MS0021024 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 24, 2020 |
| Expiration date | February 28, 2025 |
| Issuing agency | MDEQ |
| Address | Winona, MS 38967 |
| Receiving water | HAYS CREEK |
| Subwatershed | Caney Creek-Hays Creek (HUC 080602010502) |
| Program components on file | POTW, Pretreatment |
| NAICS | 221320 – Sewage Treatment Facilities |
| 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
- 20Pollutants on file
- 16Under a numeric limit
- 20With a violation of any kind
- 14With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 12 | 224 | 154 | February 28, 2026 | 753% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 16 | 120 | 56 | November 30, 2025 | 1,323% over the limit |
| Solids, total suspended | 12 | 106 | 44 | July 31, 2025 | 2,260% over the limit |
| Copper, total recoverable | 4 | 60 | 36 | November 30, 2025 | 878% over the limit |
| Solids, suspended percent removal | 1 | 35 | 27 | July 31, 2025 | 972% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 21 | 21 | March 31, 2020 | 479% over the limit |
| Zinc, total recoverable | 0 | 21 | 11 | March 31, 2020 | 343% over the limit |
| BOD, carbonaceous, percent removal | 1 | 17 | 9 | May 31, 2025 | 197% over the limit |
| Oxygen, dissolved [DO] | 3 | 28 | 7 | July 31, 2024 | 98% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 21 | 7 | April 30, 2020 | 58% over the limit |
| pH | 2 | 18 | 3 | January 31, 2026 | |
| Coliform, fecal general | 0 | 2 | 2 | October 31, 2012 | 14,900% over the limit |
| BOD, 5-day, percent removal | 0 | 2 | 2 | March 31, 2020 | 82% over the limit |
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 15 | 1 | September 30, 2004 | 59% over the limit |
| Nitrogen, total [as N] | 8 | 72 | 0 | ||
| Phosphorus, total [as P] | 8 | 72 | 0 | ||
| Sludge settleability 30 minute | 2 | 16 | 0 | ||
| IC25 Static Renewal 7 Day Chronic Chrpimephales | 1 | 15 | 0 | ||
| Chlorine, total residual | 2 | 14 | 0 | ||
| E. coli | 2 | 14 | 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 MS0021024.
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, MS0021024.
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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 MS0021024 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.