Clean Water Act discharge permit · NPDES MO0055590
GREENFIELD SHARPE WWTF, Greenfield, MO: NPDES MO0055590 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 15Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
- 1Inspections on file
- 0Formal enforcement actions
GREENFIELD SHARPE WWTF, held by City of Greenfield, holds NPDES permit MO0055590, which discharges to Tributary To Wetzel Branch. EPA’s file records it issued March 19, 2019 and expiring March 31, 2024. 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 | GREENFIELD SHARPE WWTF |
|---|---|
| Permittee as filed | City of Greenfield |
| NPDES ID | MO0055590 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 19, 2019 |
| Expiration date | March 31, 2024 |
| Address | Greenfield, MO 65661 |
| Receiving water | Tributary to Wetzel Branch |
| Subwatershed | Headwaters Sons Creek (HUC 102901060301) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 23Pollutants on file
- 15Under a numeric limit
- 23With 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 |
|---|---|---|---|---|---|
| Solids, suspended percent removal | 1 | 16 | 11 | June 30, 2026 | 186% over the limit |
| pH | 2 | 49 | 6 | April 30, 2025 | |
| E. coli | 2 | 3 | 3 | June 30, 2026 | 1,007% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 29 | 1 | March 31, 2021 | 15% over the limit |
| BOD, 5-day, percent removal | 1 | 6 | 1 | April 30, 2025 | 58% over the limit |
| Nitrogen, ammonia total [as N] | 2 | 91 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 37 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 37 | 0 | ||
| Phosphorus, total [as P] | 0 | 37 | 0 | ||
| Spray irrigation | 4 | 28 | 0 | ||
| Solids, total suspended | 2 | 28 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 26 | 0 | ||
| Application rate area sprayed | 4 | 24 | 0 | ||
| Application rate, gallons spray irrigation | 4 | 20 | 0 | ||
| Spray irrigation, application rate | 4 | 20 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 2 | 12 | 0 | ||
| Precipitation volume | 2 | 10 | 0 | ||
| Depth to water level ft below landsurface | 1 | 7 | 0 | ||
| Rainfall | 0 | 6 | 0 | ||
| Flow rate | 0 | 4 | 0 | ||
| Flow, gallons/batch | 0 | 4 | 0 | ||
| Freeboard | 0 | 4 | 0 | ||
| Application daily spray irrigation | 0 | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| September 28, 2026 | Permit Violations - Failure to Submit Timely Permit Renewal Application | ST6 |
| November 14, 2023 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| June 7, 2022 | Effluent Violations - Numeric effluent violation | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| August 25, 2026 | Evaluation | S |
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES MO0055590.
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
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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 MO0055590 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.