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Clean Water Act discharge permit · NPDES MIS210476

METAL TECHNOLOGIES-THREE RIVERS, Three Rivers, MI: NPDES MIS210476 discharge permit, effluent exceedances, inspections, penalties

METAL TECHNOLOGIES-THREE RIVERS, held by Metal Technologies - Three Rivers Grey Iron, holds NPDES permit MIS210476, which discharges to St Joseph River. EPA’s file records it issued December 2, 2021 and expiring March 31, 2027. 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 filedMETAL TECHNOLOGIES-THREE RIVERS
Permittee as filedMetal Technologies - Three Rivers Grey Iron
NPDES IDMIS210476
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedDecember 2, 2021
Expiration dateMarch 31, 2027
Issuing agencyState
AddressThree Rivers, MI 49093
Receiving waterSt Joseph River
SubwatershedCity of Florence-Saint Joseph River (HUC 040500010904)
SIC3321 – Gray And Ductile Iron Foundries
Other EPA IDs (FRS)RCRA handler MID005157078; ICIS-AIR source MI00000000000B2015

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

EPA’s limits and effluent violation files hold no pollutant row for NPDES MIS210476.

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

DateWhat EPA recordedAgency
November 16, 2023Management Practice Violations - Improper Operation and MaintenanceST6
November 16, 2023Management Practice Violations - Failure to Maintain RecordsST6
November 16, 2023Permit Violations - Discharge Without a Valid PermitST6

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 MIS210476 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

This page is a public-records entry for NPDES permit MIS210476, held by Metal Technologies - Three Rivers Grey Iron for its METAL TECHNOLOGIES-THREE RIVERS facility in Three Rivers, MI, which discharges to the St Joseph River within the City of Florence-Saint Joseph River subwatershed (HUC 040500010904). The permit is listed as Effective and as a minor discharger, with 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.