Clean Water Act discharge permit · NPDES MOG490779
LANDVATTER READY MIX, INC., St Charles, MO: NPDES MOG490779 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
LANDVATTER READY MIX, INC., held by Landvatter Ready Mix , Inc, holds NPDES permit MOG490779, which discharges to Tributary To Cole Creek. EPA’s file records it issued June 26, 2017 and expiring April 30, 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 | LANDVATTER READY MIX, INC. |
|---|---|
| Permittee as filed | Landvatter Ready Mix , Inc |
| NPDES ID | MOG490779 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | June 26, 2017 |
| Expiration date | April 30, 2022 |
| Address | St Charles, MO 63301 |
| Receiving water | Tributary to Cole Creek |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Lower Dardenne Creek (HUC 071100090105) |
| NAICS | 327320 – Ready-Mix Concrete Manufacturing |
| SIC | 3273 – Ready-Mixed Concrete |
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
- 6Pollutants on file
- 5Under a numeric limit
- 6With 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 |
|---|---|---|---|---|---|
| pH | 4 | 88 | 16 | March 31, 2021 | |
| Solids, total suspended | 4 | 84 | 12 | March 31, 2019 | 209% over the limit |
| Oil and grease [soxhlet extr.] tot. | 4 | 79 | 7 | March 31, 2023 | 4,320% over the limit |
| Solids, settleable | 4 | 72 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 70 | 0 | ||
| Storm water flow | 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
- 12Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 26, 2025 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| January 5, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| November 20, 2023 | Reporting Violations - Failure to Submit DMRs | ST6 |
| September 28, 2023 | Reporting Violations - Failure to Submit DMRs | ST6 |
| July 25, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| July 25, 2022 | WW Storm Water Construction - Failure to develop any or adequate SWPPP/SWMP | ST6 |
| July 25, 2022 | Effluent Violations - Numeric effluent violation | ST6 |
| January 13, 2022 | Reporting Violations - Failure to Submit DMRs | ST6 |
| October 15, 2021 | Reporting Violations - Failure to Submit DMRs | ST6 |
| July 14, 2021 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| April 21, 2021 | WW Storm Water Construction - Failure to develop any or adequate SWPPP/SWMP | ST6 |
| April 21, 2021 | 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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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.