Clean Water Act discharge permit · NPDES MO0135461
BARNETT WWTF, Barnett, MO: NPDES MO0135461 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
BARNETT WWTF, held by City of Barnett, holds NPDES permit MO0135461, which discharges to Tributary To Wilkes Creek. EPA’s file records it issued September 27, 2016 and expiring December 31, 2019. 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 | BARNETT WWTF |
|---|---|
| Permittee as filed | City of Barnett |
| NPDES ID | MO0135461 |
| 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 27, 2016 |
| Expiration date | December 31, 2019 |
| Address | Barnett, MO 65011 |
| Receiving water | Tributary to Wilkes Creek |
| Subwatershed | Upper South Moreau River (HUC 103001021202) |
| 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
- 12Pollutants on file
- 9Under a numeric limit
- 7With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 4 | 5 | 5 | June 30, 2026 | 1,500% over the limit |
| E. coli | 2 | 5 | 5 | June 30, 2026 | 99,999% over the limit |
| pH | 2 | 1 | 1 | March 31, 2020 | |
| Solids, suspended percent removal | 0 | 1 | 1 | March 31, 2023 | 87% over the limit |
| Oil and grease [soxhlet extr.] tot. | 2 | 4 | 0 | ||
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 0 | 1 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 0 | 1 | 0 | ||
| BOD, 5-day, 20 deg. C | 3 | 0 | 0 | ||
| Solids, total suspended | 3 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 0 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 7, 2021 | Effluent Violations - Numeric effluent violation | ST6 |
| May 29, 2018 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| May 29, 2018 | 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 MO0135461 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.