Clean Water Act discharge permit · NPDES MO0135402
RT 66 ST. CLAIR MOTEL WWTF, St. Clair, MO: NPDES MO0135402 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
RT 66 ST. CLAIR MOTEL WWTF, held by Monarch Partners, LLC, holds NPDES permit MO0135402, which discharges to Tributary To Happy Sock Creek. EPA’s file records it issued August 29, 2018 and expiring March 31, 2020. 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 | RT 66 ST. CLAIR MOTEL WWTF |
|---|---|
| Permittee as filed | Monarch Partners, LLC |
| NPDES ID | MO0135402 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 29, 2018 |
| Expiration date | March 31, 2020 |
| Address | St. Clair, MO 63077 |
| Receiving water | Tributary to Happy Sock Creek |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 7Pollutants on file
- 5Under a numeric limit
- 7With 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 |
|---|---|---|---|---|---|
| Ammonia [as N] + unionized ammonia | 0 | 19 | 13 | December 31, 2015 | 900% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 45 | 3 | March 31, 2014 | 10% over the limit |
| Solids, total suspended | 2 | 45 | 3 | March 31, 2016 | 300% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 46 | 0 | ||
| Nitrogen, ammonia total [as N] | 4 | 42 | 0 | ||
| pH | 2 | 42 | 0 | ||
| E. coli | 0 | 6 | 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 31, 2025 | Effluent Violations - Narrative Effluent Violation | ST6 |
| August 2, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| July 9, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| April 3, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| January 10, 2022 | Reporting Violations - Failure to Submit DMRs | ST6 |
| May 21, 2021 | Permit Violations - Unapproved Operation | ST6 |
| July 3, 2019 | Reporting Violations - Failure to Submit DMRs | ST6 |
| July 3, 2019 | Reporting Violations - Improper/ Incorrect Reporting | 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 MO0135402 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.