Clean Water Act discharge permit · NPDES MO0031585
WESTON WWTF, Weston, MO: NPDES MO0031585 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
WESTON WWTF, held by City of Weston, holds NPDES permit MO0031585, which discharges to Tributary To Missouri R.. EPA’s file records it issued December 1, 2017 and expiring September 30, 2022. 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 | WESTON WWTF |
|---|---|
| Permittee as filed | City of Weston |
| NPDES ID | MO0031585 |
| 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 | December 1, 2017 |
| Expiration date | September 30, 2022 |
| Address | Weston, MO 64098 |
| Receiving water | Tributary to Missouri R. |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Bear Creek-Missouri River (HUC 102400110306) |
| 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
- 20Pollutants on file
- 6Under a numeric limit
- 20With a violation of any kind
- 8With 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 | 0 | 53 | 37 | August 31, 2019 | 186% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 48 | 35 | March 31, 2016 | 99,999% over the limit |
| pH | 0 | 57 | 12 | February 28, 2014 | |
| Oil and grease [soxhlet extr.] tot. | 0 | 24 | 8 | April 30, 2014 | 90% over the limit |
| E. coli | 0 | 5 | 3 | July 31, 2019 | 99,999% over the limit |
| BOD, 5-day, percent removal | 0 | 4 | 3 | September 30, 2019 | 164% over the limit |
| Coliform, fecal general | 0 | 3 | 3 | October 31, 2013 | 12,550% over the limit |
| Solids, suspended percent removal | 0 | 3 | 2 | June 30, 2020 | 53% over the limit |
| Application rate area sprayed | 8 | 120 | 0 | ||
| Application rate, gallons spray irrigation | 8 | 120 | 0 | ||
| Spray irrigation | 8 | 120 | 0 | ||
| Spray irrigation, application rate | 8 | 120 | 0 | ||
| Rainfall | 2 | 30 | 0 | ||
| Nitrogen, total [as N] | 0 | 14 | 0 | ||
| Phosphorus, total [as P] | 0 | 14 | 0 | ||
| Flow, in conduit or thru treatment plant | 0 | 12 | 0 | ||
| Freeboard | 0 | 11 | 0 | ||
| Depth to water level ft below landsurface | 1 | 4 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 2 | 0 | ||
| Ammonia [as N] + unionized ammonia | 0 | 2 | 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 |
|---|---|---|
| April 18, 2025 | Reporting Violations - Failure to Submit DMRs | ST6 |
| December 18, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| August 2, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| February 15, 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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Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.