Clean Water Act discharge permit · NPDES MO0103675
MARK TWAIN LANDING RESORT, Monroe City, MO: NPDES MO0103675 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 14Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MARK TWAIN LANDING RESORT, held by Mark Twain Landing LLC, holds NPDES permit MO0103675, which discharges to Tributary To Mark Twain Lake. EPA’s file records it issued October 28, 2020 and expiring September 30, 2025. 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 | MARK TWAIN LANDING RESORT |
|---|---|
| Permittee as filed | Mark Twain Landing LLC |
| NPDES ID | MO0103675 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | October 28, 2020 |
| Expiration date | September 30, 2025 |
| Address | Monroe City, MO 63456 |
| Receiving water | Tributary to Mark Twain Lake |
| Subwatershed | Mark Twain Lake-Salt River (HUC 071100070105) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 15Pollutants on file
- 14Under a numeric limit
- 15With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| pH | 10 | 854 | 0 | ||
| Oxygen, dissolved [DO] | 8 | 832 | 0 | ||
| Solids, settleable | 8 | 832 | 0 | ||
| Flow, in conduit or thru treatment plant | 8 | 832 | 0 | ||
| Chlorine, total residual | 8 | 832 | 0 | ||
| Application rate area sprayed | 1 | 55 | 0 | ||
| Application rate, gallons spray irrigation | 1 | 55 | 0 | ||
| Spray irrigation | 1 | 55 | 0 | ||
| Spray irrigation, application rate | 1 | 55 | 0 | ||
| Rainfall | 1 | 52 | 0 | ||
| Freeboard | 1 | 51 | 0 | ||
| Nitrogen, nitrate total [as N] | 1 | 14 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 14 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 11 | 0 | ||
| Coliform, fecal general | 0 | 6 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MO0103675.
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
- 19Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 18, 2025 | Reporting Violations - Failure to Submit DMRs | ST6 |
| April 18, 2025 | Reporting Violations - Failure to Submit DMRs | ST6 |
| March 20, 2025 | Reporting Violations - Failure to Submit DMRs | ST6 |
| August 2, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| March 29, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| March 29, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| December 29, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| December 29, 2023 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| November 16, 2023 | Reporting Violations - Failure to Submit DMRs | ST6 |
| July 3, 2023 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| June 30, 2023 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| June 30, 2023 | Effluent Violations - Numeric effluent violation | ST6 |
| December 30, 2022 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| June 30, 2022 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| June 30, 2022 | Reporting Violations - Failure to Submit DMRs | ST6 |
| March 31, 2022 | Reporting Violations - Failure to Submit DMRs | ST6 |
| July 9, 2019 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| October 17, 2017 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| October 17, 2017 | 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.
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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 MO0103675 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.