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Clean Water Act discharge permit · NPDES MIS210866

TRI-MER CORP-OWOSSO, Owosso, MI: NPDES MIS210866 discharge permit, effluent exceedances, inspections, penalties

TRI-MER CORP-OWOSSO, held by Tri-Mer Corporation, holds NPDES permit MIS210866, which discharges to Shiawassee River. EPA’s file records it issued December 17, 2021 and expiring March 31, 2027. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for TRI-MER CORP-OWOSSO: its NPDES ID, its permit type and status, its dates, its address in Owosso, Michigan, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MIS210866.

Identity

Facility as filedTRI-MER CORP-OWOSSO
Permittee as filedTri-Mer Corporation
NPDES IDMIS210866
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedDecember 17, 2021
Expiration dateMarch 31, 2027
Issuing agencyState
AddressOwosso, MI 48867
Receiving waterShiawassee River
SubwatershedOsburn Drain-Shiawassee River (HUC 040802030206)
Other EPA IDs (FRS)RCRA handler MIR000036475

Cited to the EPA ICIS-NPDES permit file (ECHO 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 MIS210866.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES MIS210866.

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.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MIS210866.

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How we handle your data → Privacy

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 MIS210866 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

The TRI-MER CORP-OWOSSO permit is one of 13 general permit coverages on EPA's NPDES register in Shiawassee County, and 69.2% of those 13 coverages carry an earlier issue date than this one. Within the Osburn Drain-Shiawassee River subwatershed, the register lists 12 NPDES permits, this one included. The permit has no pollutants under a numeric limit and no pollutants with an effluent exceedance, both counted as 0.