Clean Water Act discharge permit · NPDES MO0116581
MINDENMINES WWTF, Mindenmines, MO: NPDES MO0116581 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
MINDENMINES WWTF, held by City of Mindenmines, holds NPDES permit MO0116581, which discharges to Tributary To Glendale Fork. EPA’s file records it issued August 20, 2018 and expiring December 31, 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 | MINDENMINES WWTF |
|---|---|
| Permittee as filed | City of Mindenmines |
| NPDES ID | MO0116581 |
| 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 | August 20, 2018 |
| Expiration date | December 31, 2022 |
| Address | Mindenmines, MO 64769 |
| Receiving water | Tributary to Glendale Fork |
| Subwatershed | Glendale Fork (HUC 110702070308) |
| 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
- 9Pollutants on file
- 8Under 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, suspended percent removal | 1 | 22 | 21 | June 30, 2026 | 176% over the limit |
| BOD, 5-day, percent removal | 1 | 17 | 16 | June 30, 2026 | 153% over the limit |
| pH | 2 | 56 | 14 | June 30, 2026 | |
| Solids, total suspended | 2 | 11 | 7 | June 30, 2022 | 43% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 9 | 5 | June 30, 2021 | 12% over the limit |
| E. coli | 2 | 2 | 2 | December 31, 2025 | 145% over the limit |
| Nitrogen, ammonia total [as N] | 6 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 4 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 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
- 5Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 14, 2023 | Effluent Violations - Numeric effluent violation | ST6 |
| March 14, 2023 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| September 21, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| March 23, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| June 7, 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.
Watch this permit
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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 MO0116581 there.
Nearby on the register
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- Every permit record in Missouri, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.