Clean Water Act discharge permit · NPDES MO0130028
IONIA WWTF, Ionia, MO: NPDES MO0130028 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
IONIA WWTF, held by City of Ionia, holds NPDES permit MO0130028, which discharges to Tributary To Trib. To S. Flat Cr.. EPA’s file records it issued September 15, 2017 and expiring March 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 | IONIA WWTF |
|---|---|
| Permittee as filed | City of Ionia |
| NPDES ID | MO0130028 |
| 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 15, 2017 |
| Expiration date | March 31, 2021 |
| Address | Ionia, MO 65335 |
| Receiving water | Tributary to Trib. to S. Flat Cr. |
| Subwatershed | South Flat Creek-Flat Creek (HUC 103001030201) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 9Pollutants on file
- 9Under a numeric limit
- 9With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 2 | 46 | 5 | June 30, 2024 | 64% over the limit |
| E. coli | 2 | 21 | 5 | December 31, 2022 | 1,162% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 44 | 3 | June 30, 2019 | 87% over the limit |
| Solids, suspended percent removal | 1 | 14 | 3 | June 30, 2024 | 186% over the limit |
| BOD, 5-day, percent removal | 1 | 13 | 2 | June 30, 2023 | 63% over the limit |
| pH | 1 | 60 | 1 | June 30, 2024 | |
| Oil and grease [soxhlet extr.] tot. | 2 | 22 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 22 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 22 | 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
- 8Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 29, 2025 | Reporting Violations - Failure to Submit DMRs | ST6 |
| September 24, 2025 | Reporting Violations - Failure to Submit DMRs | ST6 |
| September 24, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| August 2, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| June 25, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| June 17, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| April 12, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| November 16, 2023 | Reporting Violations - Failure to Submit DMRs | 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 MO0130028 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.