Clean Water Act discharge permit · NPDES MIS111870

AUTOCAM-MARSHALL, Marshall, MI: NPDES MIS111870 discharge permit, effluent exceedances, inspections, penalties

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

AUTOCAM-MARSHALL, held by NN Inc., holds NPDES permit MIS111870. EPA’s file records it issued October 13, 2017 and expiring April 1, 2021. 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	AUTOCAM-MARSHALL
Permittee as filed	NN Inc.
NPDES ID	MIS111870
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
Issued	October 13, 2017
Expiration date	April 1, 2021
Issuing agency	State
Address	Marshall, MI 49068
Receiving water impaired	303(D) Listed
Subwatershed	Buckhorn Lake-Kalamazoo River (HUC 040500030407)
SIC	3363 – Aluminum Die-Castings

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 MIS111870.

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

11Single-event violations

Date	What EPA recorded	Agency
May 1, 2026	Management Practice Violations - No Licensed/Certified Operator	ST6
May 1, 2026	Failure to develop, maintain, or get approval of an adequate SWPPP (industrial stormwater)	ST6
May 1, 2026	Other noncompliance related to industrial stormwater discharges	ST6
March 22, 2023	Management Practice Violations - Best Management Practice Deficiencies	ST6
March 22, 2023	Failure to eliminate or relocate industrial stormwater outfalls from identified sensitive areas	ST6
March 22, 2023	Other noncompliance related to industrial stormwater discharges	ST6
March 20, 2023	WW Storm Water Non-Construction - Failure to develop any or adequate SWPPP/SWMP	ST6
March 20, 2023	Management Practice Violations - Failure to Maintain Records	ST6
March 20, 2023	Management Practice Violations - Improper Operation and Maintenance	ST6
March 15, 2023	Other noncompliance related to industrial stormwater discharges	ST6
July 21, 2017	WW Storm Water Non-Construction - Failure to develop any or adequate SWPPP/SWMP	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 MIS111870 there.

Nearby on the register

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

This public-records page covers the NPDES discharge permit MIS111870 for AUTOCAM-MARSHALL in Marshall, MI, held by NN Inc., with the permit listed as administratively continued after its April 1, 2021 expiration. The register shows 0 pollutants on file, 0 under a numeric limit, and 0 with an effluent exceedance, within the Buckhorn Lake-Kalamazoo River subwatershed (HUC 040500030407).