Clean Water Act discharge permit · NPDES MO0088676
WINFIELD WWTF, Winfield, MO: NPDES MO0088676 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
WINFIELD WWTF, held by City of Winfield, holds NPDES permit MO0088676, which discharges to Mclean Cr.. EPA’s file records it issued July 1, 2019 and expiring June 30, 2024. 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 | WINFIELD WWTF |
|---|---|
| Permittee as filed | City of Winfield |
| NPDES ID | MO0088676 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | July 1, 2019 |
| Expiration date | June 30, 2024 |
| Address | Winfield, MO 63389 |
| Receiving water | McLean Cr. |
| Subwatershed | McLean Creek (HUC 071100041107) |
| 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
- 12Pollutants on file
- 12Under a numeric limit
- 12With a violation of any kind
- 8With 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 |
|---|---|---|---|---|---|
| pH | 2 | 129 | 83 | December 31, 2025 | |
| Solids, total suspended | 2 | 89 | 43 | May 31, 2026 | 1,011% over the limit |
| E. coli | 2 | 56 | 24 | September 30, 2021 | 58,674% over the limit |
| Nitrogen, ammonia total [as N] | 6 | 108 | 22 | April 30, 2026 | 9,900% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 64 | 16 | April 30, 2026 | 740% over the limit |
| Solids, suspended percent removal | 1 | 35 | 12 | May 31, 2026 | 487% over the limit |
| BOD, 5-day, percent removal | 1 | 31 | 8 | September 30, 2025 | 567% over the limit |
| Oil and grease [soxhlet extr.] tot. | 2 | 51 | 5 | September 30, 2021 | 99,999% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 68 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 6 | 58 | 0 | ||
| Nitrite + Nitrate total [as N] | 6 | 58 | 0 | ||
| Phosphorus, total [as P] | 6 | 58 | 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
- 15Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 16, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| September 17, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| March 20, 2025 | Reporting Violations - Failure to Submit DMRs | ST6 |
| November 21, 2024 | Permit Violations - Unapproved Operation | ST6 |
| November 21, 2024 | Permit Violations - Failure to Submit Timely Permit Renewal Application | ST6 |
| November 21, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| November 21, 2024 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| November 21, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| June 21, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| March 19, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| March 18, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| December 14, 2023 | Effluent Violations - Numeric effluent violation | ST6 |
| November 20, 2023 | Reporting Violations - Failure to Submit DMRs | ST6 |
| June 16, 2022 | Reporting Violations - Failure to Submit DMRs | ST6 |
| February 13, 2019 | Effluent Violations - Numeric effluent violation | 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 MO0088676 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.