Clean Water Act discharge permit · NPDES MO0040312
FARMINGTON WEST WWTP, Farmington, MO: NPDES MO0040312 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 24Pollutants under a numeric limit
- 13Pollutants with an effluent exceedance
FARMINGTON WEST WWTP, held by City of Farmington, holds NPDES permit MO0040312, which discharges to 8-20-13 Mudd V1.0. EPA’s file records it issued May 5, 2017 and expiring December 31, 2021. 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 | FARMINGTON WEST WWTP |
|---|---|
| Permittee as filed | City of Farmington |
| NPDES ID | MO0040312 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | May 5, 2017 |
| Expiration date | December 31, 2021 |
| Issuing agency | MODNR-Water Protection Program |
| Address | Farmington, MO 63640 |
| Receiving water | 8-20-13 MUDD V1.0 |
| Subwatershed | Blankshire Branch-St Francis River (HUC 080202020204) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 34Pollutants on file
- 24Under a numeric limit
- 29With a violation of any kind
- 13With 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, total suspended | 2 | 52 | 27 | May 31, 2016 | 175% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 62 | 26 | September 30, 2016 | 99,999% over the limit |
| Ammonia [as N] + unionized ammonia | 0 | 22 | 22 | March 31, 2011 | 244% over the limit |
| E. coli, colony forming units [CFU] | 0 | 19 | 19 | May 31, 2017 | 99,999% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 2 | 12 | 12 | July 31, 2026 | 53% over the limit |
| E. coli | 2 | 7 | 7 | July 31, 2026 | 1,963% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 45 | 5 | June 30, 2016 | 157% over the limit |
| pH | 2 | 36 | 3 | March 31, 2008 | |
| Oil and grease [soxhlet extr.] tot. | 2 | 74 | 2 | July 31, 2014 | 130% over the limit |
| Solids, suspended percent removal | 1 | 2 | 2 | November 30, 2024 | 15% over the limit |
| Coliform, fecal general | 0 | 2 | 2 | April 30, 2001 | 1,464% over the limit |
| CBOD5+NH3-N | 0 | 107 | 1 | June 30, 2002 | 10% over the limit |
| Copper, total recoverable | 2 | 7 | 1 | December 31, 2017 | 36% over the limit |
| Nitrite + Nitrate total [as N] | 2 | 26 | 0 | ||
| Phosphorus, total [as P] | 2 | 26 | 0 | ||
| Temperature, water deg. centigrade | 0 | 24 | 0 | ||
| Cyanide, total recoverable | 0 | 23 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 19 | 0 | ||
| Nickel, total recoverable | 2 | 6 | 0 | ||
| Zinc, total recoverable | 2 | 6 | 0 | ||
| Cadmium, total recoverable | 2 | 6 | 0 | ||
| Lead, total recoverable | 2 | 6 | 0 | ||
| Chromium, total recoverable | 0 | 6 | 0 | ||
| Nitrogen, total [as N] | 2 | 2 | 0 | ||
| Nitrogen, nitrite total [as N] | 2 | 2 | 0 | ||
| Nitrogen, nitrate total [as N] | 2 | 2 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 0 | ||
| Chlorine, total residual | 0 | 2 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 0 | 0 | ||
| Selenium, total recoverable | 2 | 0 | 0 | ||
| Chromium, hexavalent dissolved [as Cr] | 2 | 0 | 0 | ||
| Chromium, trivalent total recoverable | 2 | 0 | 0 | ||
| BOD, carbonaceous, percent removal | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 23, 2026 | 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 15, 2026.