Clean Water Act discharge permit · NPDES MOG490332
VALLEY MATERIAL COMPANY, Valley Park, MO: NPDES MOG490332 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
VALLEY MATERIAL COMPANY, held by Valley Material Company, holds NPDES permit MOG490332, which discharges to Tributary To Meramec River. 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 | VALLEY MATERIAL COMPANY |
|---|---|
| Permittee as filed | Valley Material Company |
| NPDES ID | MOG490332 |
| 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 | Valley Park, MO 63088 |
| Receiving water | Tributary to Meramec River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Grand Glaize Creek-Meramec River (HUC 071401021002) |
| SIC | 3273 – Ready-Mixed Concrete |
| Other EPA IDs (FRS) | ICIS-AIR source MO0000002918900118 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 6Pollutants on file
- 5Under a numeric limit
- 6With a violation of any kind
- 4With 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 | 2 | 45 | 35 | June 30, 2026 | |
| Solids, total suspended | 2 | 36 | 28 | June 30, 2026 | 629% over the limit |
| Solids, settleable | 2 | 14 | 6 | March 31, 2025 | 1,400% over the limit |
| Oil and grease [soxhlet extr.] tot. | 2 | 15 | 1 | March 31, 2025 | 30% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 10 | 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
- 11Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 22, 2026 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| May 22, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
| August 28, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| March 31, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| July 3, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| December 29, 2023 | Effluent Violations - Numeric effluent violation | ST6 |
| June 30, 2022 | Effluent Violations - Numeric effluent violation | ST6 |
| November 19, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| August 26, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| December 26, 2019 | Effluent Violations - Numeric effluent violation | ST6 |
| December 26, 2019 | WW Storm Water Construction - Failure to develop any or adequate SWPPP/SWMP | 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 MOG490332 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.