Clean Water Act discharge permit · NPDES MOR203486
METSO OUTOTEC USA INC, Warrenton, MO: NPDES MOR203486 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
METSO OUTOTEC USA INC, held by Metso Minerals Industries Inc., holds NPDES permit MOR203486, which discharges to Tributary To Hickory Lick Creek. EPA’s file records it issued May 8, 2016 and expiring August 31, 2019. 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 | METSO OUTOTEC USA INC |
|---|---|
| Permittee as filed | Metso Minerals Industries Inc. |
| NPDES ID | MOR203486 |
| 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 | May 8, 2016 |
| Expiration date | August 31, 2019 |
| Address | Warrenton, MO 63380 |
| Receiving water | Tributary to Hickory Lick Creek |
| Subwatershed | Upper Big Creek (HUC 071100080404) |
| NAICS | 333120 – Construction Machinery Manufacturing |
| SIC | 3496 – Miscellaneous Fabricated Wire Products |
| Other EPA IDs (FRS) | RCRA handler MOD985775592 |
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
- 7Pollutants on file
- 0Under a numeric limit
- 7With 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 | 0 | 1 | 0 | ||
| Solids, total suspended | 0 | 1 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 0 | 1 | 0 | ||
| Iron, total recoverable | 0 | 1 | 0 | ||
| Zinc, total recoverable | 0 | 1 | 0 | ||
| Aluminum, total recoverable | 0 | 1 | 0 | ||
| Copper, total recoverable | 0 | 1 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MOR203486.
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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 23, 2022 | Permit Violations - Unapproved Operation | 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 MOR203486 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.