Clean Water Act discharge permit · NPDES MO0088536
WYATT WWTF, Wyatt, MO: NPDES MO0088536 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
WYATT WWTF, held by City of Wyatt, holds NPDES permit MO0088536, which discharges to Tributary To Spillway Ditch. EPA’s file records it issued September 28, 2017 and expiring June 30, 2022. 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 | WYATT WWTF |
|---|---|
| Permittee as filed | City of Wyatt |
| NPDES ID | MO0088536 |
| 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 | September 28, 2017 |
| Expiration date | June 30, 2022 |
| Address | Wyatt, MO 63882 |
| Receiving water | Tributary to Spillway Ditch |
| Subwatershed | Upper Spillway Ditch (HUC 080202010102) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 11Under a numeric limit
- 11With a violation of any kind
- 5With 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, percent removal | 2 | 61 | 43 | April 30, 2025 | 99,999% over the limit |
| Solids, suspended percent removal | 2 | 59 | 41 | April 30, 2025 | 99,999% over the limit |
| pH | 4 | 49 | 13 | July 31, 2024 | |
| Solids, total suspended | 4 | 46 | 10 | March 31, 2024 | 108% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 37 | 1 | December 31, 2006 | 33% over the limit |
| Oil and grease [soxhlet extr.] tot. | 4 | 36 | 0 | ||
| Nitrogen, ammonia total [as N] | 4 | 36 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 36 | 0 | ||
| E. coli | 8 | 12 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 1 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 1 | 1 | 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
- 10Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 13, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| August 13, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| December 27, 2022 | Effluent Violations - Numeric effluent violation | ST6 |
| September 29, 2021 | Effluent Violations - Numeric effluent violation | ST6 |
| June 30, 2021 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| March 18, 2021 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| October 9, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| December 31, 2019 | Effluent Violations - Numeric effluent violation | ST6 |
| September 19, 2019 | Effluent Violations - Numeric effluent violation | ST6 |
| September 19, 2019 | 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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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 MO0088536 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.