Clean Water Act discharge permit · NPDES MO0028860
FARMINGTON EAST WWTP, Farmington, MO: NPDES MO0028860 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 19Pollutants under a numeric limit
- 9Pollutants with an effluent exceedance
FARMINGTON EAST WWTP, held by City of Farmington, holds NPDES permit MO0028860, which discharges to Tributary To Wolf Creek. EPA’s file records it issued April 28, 2017 and expiring September 30, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | FARMINGTON EAST WWTP |
|---|---|
| Permittee as filed | City of Farmington |
| NPDES ID | MO0028860 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | April 28, 2017 |
| Expiration date | September 30, 2021 |
| Address | Farmington, MO 63640 |
| Receiving water | Tributary to Wolf Creek |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Wolf Creek (HUC 080202020203) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 23Pollutants on file
- 19Under a numeric limit
- 20With a violation of any kind
- 9With 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 |
|---|---|---|---|---|---|
| Ammonia [as N] + unionized ammonia | 0 | 126 | 27 | September 30, 2013 | 2,012% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 13 | 7 | July 31, 2026 | 788% over the limit |
| E. coli | 2 | 7 | 7 | May 31, 2026 | 4,894% over the limit |
| E. coli, colony forming units [CFU] | 0 | 46 | 4 | April 30, 2017 | 99,999% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 2 | 10 | 4 | April 30, 2020 | 184% over the limit |
| Phosphorus, total [as P] | 2 | 9 | 4 | February 28, 2026 | 82% over the limit |
| BOD, carbonaceous, percent removal | 1 | 2 | 2 | May 31, 2026 | 133% over the limit |
| Solids, total suspended | 2 | 7 | 1 | August 31, 2016 | 23% over the limit |
| Solids, suspended percent removal | 1 | 1 | 1 | July 31, 2026 | 13% over the limit |
| Oil and grease [soxhlet extr.] tot. | 2 | 32 | 0 | ||
| pH | 2 | 6 | 0 | ||
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 0 | 5 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 0 | 5 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 4 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 4 | 0 | ||
| Nitrogen, total [as N] | 2 | 2 | 0 | ||
| Nitrogen, nitrite total [as N] | 2 | 2 | 0 | ||
| Nitrogen, nitrate total [as N] | 2 | 2 | 0 | ||
| Toxicity [chronic], Ceriodaphnia dubia | 1 | 1 | 0 | ||
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | 1 | 1 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 2 | 0 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 2 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 17, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| July 17, 2025 | 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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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.