Clean Water Act discharge permit · NPDES MS0027774
KOSCIUSKO POTW, SOUTH, Kosciusko, MS: NPDES MS0027774 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 12Pollutants under a numeric limit
- 15Pollutants with an effluent exceedance
KOSCIUSKO POTW, SOUTH holds NPDES permit MS0027774, which discharges to Yockanookany River. EPA’s file records it issued March 23, 2018 and expiring February 28, 2023. 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 | KOSCIUSKO POTW, SOUTH |
|---|---|
| Permittee as filed | KOSCIUSKO POTW, SOUTH |
| NPDES ID | MS0027774 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 23, 2018 |
| Expiration date | February 28, 2023 |
| Issuing agency | MDEQ |
| Address | Kosciusko, MS 39090 |
| Receiving water | YOCKANOOKANY RIVER |
| Subwatershed | Bokshenya Creek-Yockanookany River (HUC 031800011302) |
| 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
- 12Under a numeric limit
- 20With a violation of any kind
- 15With 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 | 8 | 185 | 40 | July 31, 2026 | 481% over the limit |
| BOD, 5-day, percent removal | 1 | 40 | 18 | July 31, 2026 | 186% over the limit |
| E. coli | 2 | 34 | 18 | December 31, 2025 | 2,650% over the limit |
| Solids, suspended percent removal | 1 | 38 | 17 | July 31, 2026 | 186% over the limit |
| Solids, total suspended | 8 | 159 | 7 | September 30, 2025 | 201% over the limit |
| pH | 2 | 52 | 3 | July 31, 2023 | |
| Flow, in conduit or thru treatment plant | 3 | 43 | 3 | December 31, 2024 | 796% over the limit |
| Phosphorus, total [as P] | 12 | 104 | 2 | December 31, 2024 | 473% over the limit |
| Oxygen, dissolved [DO] | 1 | 25 | 2 | February 28, 2018 | 33% over the limit |
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 16 | 2 | December 31, 2008 | 1% over the limit |
| IC25 Static Renewal 7 Day Chronic Chrpimephales | 0 | 13 | 2 | December 31, 2008 | 1% over the limit |
| Nitrogen, total [as N] | 12 | 103 | 1 | December 31, 2023 | 854% over the limit |
| Nitrogen, ammonia total [as N] | 11 | 76 | 1 | December 31, 2023 | 52% over the limit |
| Chlorine, total residual | 2 | 29 | 1 | May 31, 2026 | 109% over the limit |
| Coliform, fecal general | 0 | 13 | 1 | December 31, 2017 | 29% over the limit |
| Selenium, total recoverable | 0 | 14 | 0 | ||
| Copper, total recoverable | 0 | 14 | 0 | ||
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 9 | 0 | ||
| %Effect Static Renewal 7Day Chronic Pimephales promelas | 0 | 9 | 0 | ||
| Flow, total | 0 | 3 | 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 MS0027774.
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, MS0027774.
Start the watch
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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 MS0027774 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.