Clean Water Act discharge permit · NPDES MO0028789
CENTRALIA WWTF, Centralia, MO: NPDES MO0028789 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 19Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
CENTRALIA WWTF, held by City of Centralia, holds NPDES permit MO0028789, which discharges to Tributary To Goodwater Creek. EPA’s file records it issued February 2, 2018 and expiring December 31, 2021. 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 | CENTRALIA WWTF |
|---|---|
| Permittee as filed | City of Centralia |
| NPDES ID | MO0028789 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | February 2, 2018 |
| Expiration date | December 31, 2021 |
| Address | Centralia, MO 65240 |
| Receiving water | Tributary to Goodwater Creek |
| Subwatershed | Scattering Branch-Long Branch (HUC 071100060101) |
| Program components on file | POTW, Pretreatment |
| 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
- 33Pollutants on file
- 19Under a numeric limit
- 33With a violation of any kind
- 6With 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] | 12 | 301 | 15 | June 30, 2017 | 140% over the limit |
| Solids, total suspended | 6 | 54 | 4 | September 30, 2008 | 108% over the limit |
| Cyanide, free [amenable to chlorination] | 4 | 12 | 2 | March 31, 2010 | 25% over the limit |
| BOD, 5-day, 20 deg. C | 6 | 53 | 1 | July 31, 2015 | 20% over the limit |
| BOD, 5-day, percent removal | 3 | 11 | 1 | May 31, 2019 | 10% over the limit |
| Solids, suspended percent removal | 3 | 11 | 1 | May 31, 2019 | 43% over the limit |
| Spray irrigation | 24 | 713 | 0 | ||
| Application rate, gallons spray irrigation | 24 | 384 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 302 | 0 | ||
| Application rate area sprayed | 24 | 285 | 0 | ||
| Rainfall | 3 | 261 | 0 | ||
| Depth to water level ft below landsurface | 3 | 206 | 0 | ||
| Spray irrigation, application rate | 24 | 116 | 0 | ||
| Flow rate | 0 | 105 | 0 | ||
| pH | 6 | 68 | 0 | ||
| Aluminum, total [as Al] | 0 | 60 | 0 | ||
| Flow, in conduit or thru treatment plant | 6 | 42 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 6 | 28 | 0 | ||
| Phosphorus, total [as P] | 6 | 18 | 0 | ||
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 0 | 14 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 0 | 14 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 12 | 0 | ||
| Flow, gallons/batch | 0 | 9 | 0 | ||
| Nitrogen, total [as N] | 6 | 6 | 0 | ||
| Iron, total recoverable | 0 | 6 | 0 | ||
| Zinc, total recoverable | 0 | 6 | 0 | ||
| Aluminum, total recoverable | 0 | 6 | 0 | ||
| Copper, total recoverable | 0 | 6 | 0 | ||
| Ammonia [as N] + unionized ammonia | 0 | 6 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 3 | 3 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 3 | 3 | 0 | ||
| Temperature, water deg. fahrenheit | 0 | 2 | 0 | ||
| Hardness, total [as CaCO3] | 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
- 6Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 24, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| May 29, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| May 29, 2024 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| May 29, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| June 30, 2017 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| June 30, 2017 | Effluent Violations - Numeric effluent violation | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES MO0028789.
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 MO0028789.
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 MO0028789 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.