Clean Water Act discharge permit · NPDES MO0050610
MANSFIELD WWTF, Mansfield, MO: NPDES MO0050610 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 14Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
MANSFIELD WWTF, held by City of Mansfield, holds NPDES permit MO0050610, which discharges to Tributary To Fry Creek. EPA’s file records it issued July 17, 2020 and expiring March 31, 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 | MANSFIELD WWTF |
|---|---|
| Permittee as filed | City of Mansfield |
| NPDES ID | MO0050610 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | July 17, 2020 |
| Expiration date | March 31, 2025 |
| Address | Mansfield, MO 65704 |
| Receiving water | Tributary to Fry Creek |
| Subwatershed | Wolf Creek (HUC 102902010102) |
| 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
- 16Pollutants on file
- 14Under a numeric limit
- 12With a violation of any kind
- 1With 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 | 3 | 8 | 5 | December 31, 2024 | 60% over the limit |
| Solids, total suspended | 3 | 35 | 0 | ||
| Phosphorus, total [as P] | 4 | 6 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 2 | 6 | 0 | ||
| Nitrogen, total [as N] | 0 | 6 | 0 | ||
| pH | 2 | 4 | 0 | ||
| Nitrogen, ammonia total [as N] | 14 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 0 | ||
| E. coli | 2 | 2 | 0 | ||
| Coliform, fecal general | 0 | 2 | 0 | ||
| BOD, 5-day, percent removal | 1 | 1 | 0 | ||
| Solids, suspended percent removal | 1 | 1 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 4 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 4 | 0 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 0 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 12, 2022 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| July 12, 2022 | Effluent Violations - Narrative Effluent Violation | ST6 |
| August 8, 2018 | Effluent Violations - Narrative Effluent Violation | ST6 |
| August 8, 2018 | Permit Violations - Violation Specified in Comment | 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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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.