Clean Water Act discharge permit · NPDES MO0039683
LADDONIA WWTF, Laddonia, MO: NPDES MO0039683 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
LADDONIA WWTF, held by City of Laddonia, holds NPDES permit MO0039683, which discharges to Middle Lick Creek. EPA’s file records it issued April 1, 2021 and expiring March 31, 2026. 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 | LADDONIA WWTF |
|---|---|
| Permittee as filed | City of Laddonia |
| NPDES ID | MO0039683 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | April 1, 2021 |
| Expiration date | March 31, 2026 |
| Address | Laddonia, MO 63352 |
| Receiving water | Middle Lick Creek |
| Subwatershed | East Lick Creek (HUC 071100070102) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 15Pollutants on file
- 6Under a numeric limit
- 15With a violation of any kind
- 3With 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] | 0 | 34 | 22 | May 31, 2019 | 271% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 20 | 4 | May 31, 2010 | 122% over the limit |
| Solids, total suspended | 0 | 17 | 3 | March 31, 2012 | 19% over the limit |
| pH | 0 | 57 | 0 | ||
| Application rate area sprayed | 2 | 18 | 0 | ||
| Application rate, gallons spray irrigation | 2 | 18 | 0 | ||
| Spray irrigation | 2 | 18 | 0 | ||
| Spray irrigation, application rate | 2 | 18 | 0 | ||
| Precipitation volume | 0 | 14 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 0 | 12 | 0 | ||
| Flow, in conduit or thru treatment plant | 0 | 12 | 0 | ||
| Lagoon freeboard | 0 | 7 | 0 | ||
| E. coli | 0 | 6 | 0 | ||
| Rainfall | 2 | 4 | 0 | ||
| Depth to water level ft below landsurface | 1 | 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
- 17Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 11, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| March 19, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| February 11, 2025 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| February 11, 2025 | Management Practice Violations - Improper Land Application (non-503 non-CAFO) | ST6 |
| February 11, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| February 11, 2025 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| June 30, 2023 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| March 31, 2022 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| December 10, 2020 | Reporting Violations - Failure to Submit DMRs | ST6 |
| December 10, 2020 | Permit Violations - Violation Specified in Comment | ST6 |
| December 10, 2020 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| December 10, 2020 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| December 10, 2020 | Permit Violations - Failure to Submit Timely Permit Renewal Application | ST6 |
| December 27, 2019 | Reporting Violations - Failure to Submit DMRs | ST6 |
| June 29, 2018 | Effluent Violations - Numeric effluent violation | ST6 |
| March 30, 2018 | Effluent Violations - Numeric effluent violation | ST6 |
| June 30, 2017 | 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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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 MO0039683 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.