Clean Water Act discharge permit · NPDES MIS112001

OERLIKON METCO, Troy, MI: NPDES MIS112001 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance

OERLIKON METCO, held by Oerlikon Metco, holds NPDES permit MIS112001, which discharges to Spencer Drain. EPA’s file records it issued January 27, 2021 and expiring March 31, 2026. 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	OERLIKON METCO
Permittee as filed	Oerlikon Metco
NPDES ID	MIS112001
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	January 27, 2021
Expiration date	March 31, 2026
Issuing agency	State
Address	Troy, MI 48084
Receiving water	Spencer Drain
Receiving water impaired	303(D) Listed
Subwatershed	Meckler Drain-Red Run (HUC 040900030202)
SIC	3399 – Primary Metal Products

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

0Pollutants on file
0Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

EPA’s limits and effluent violation files hold no pollutant row for NPDES MIS112001.

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
May 15, 2024	Failure to develop, maintain, or get approval of an adequate SWPPP (industrial stormwater)	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.

Watch this permit

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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 MIS112001 there.

Nearby on the register

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

This public-records page covers Clean Water Act NPDES permit MIS112001, held by OERLIKON METCO in Troy, MI, which discharges to Spencer Drain and is within subwatershed Meckler Drain-Red Run (HUC 040900030202). The page lists the permit as Effective and Minor Discharger class, with 0 pollutants on file, 0 under a numeric limit, 0 with a violation of any kind, and 0 with an effluent exceedance.