Clean Water Act discharge permit · NPDES MOG490807
WASHINGTON COUNTY AGGREGATES INC, Cadet, MO: NPDES MOG490807 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 1Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
WASHINGTON COUNTY AGGREGATES INC, held by Kelley C Silvey, holds NPDES permit MOG490807, which discharges to Tributary To Brushy Hollow Br.. EPA’s file records it issued October 1, 2022 and expiring April 30, 2027. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | WASHINGTON COUNTY AGGREGATES INC |
|---|---|
| Permittee as filed | Kelley C Silvey |
| NPDES ID | MOG490807 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | October 1, 2022 |
| Expiration date | April 30, 2027 |
| Address | Cadet, MO 63630 |
| Receiving water | Tributary to Brushy Hollow Br. |
| Subwatershed | Mine a Breton Creek (HUC 071401040201) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 4Pollutants on file
- 1Under a numeric limit
- 4With a violation of any kind
- 2With 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 | 12 | 8 | March 31, 2020 | |
| Oil and grease [soxhlet extr.] tot. | 0 | 4 | 2 | September 30, 2017 | 450% over the limit |
| Solids, total suspended | 0 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 8, 2018 | WW Storm Water Construction - Failure to develop any or adequate SWPPP/SWMP | ST6 |
| August 8, 2018 | Effluent Violations - Numeric effluent violation | 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 September 14, 2026.