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Clean Water Act discharge permit · NPDES MIS120691

SILICONATURE-KENT CO, Caledonia, MI: NPDES MIS120691 discharge permit, effluent exceedances, inspections, penalties

SILICONATURE-KENT CO, held by Siliconature Corporation, holds NPDES permit MIS120691, which discharges to Plaster Creek. EPA’s file records it issued December 17, 2021 and expiring April 1, 2026. 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 SILICONATURE-KENT CO: its NPDES ID, its permit type and status, its dates, its address in Caledonia, Michigan, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MIS120691.

Identity

Facility as filedSILICONATURE-KENT CO
Permittee as filedSiliconature Corporation
NPDES IDMIS120691
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedDecember 17, 2021
Expiration dateApril 1, 2026
Issuing agencyState
AddressCaledonia, MI 49316
Receiving waterPlaster Creek
Receiving water impaired303(D) Listed
SubwatershedHeadwaters Plaster Creek (HUC 040500060505)
Other EPA IDs (FRS)RCRA handler MIK184163139

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 MIS120691.

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 MIS120691.

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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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 MIS120691 there.

Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES MIS120691, held by Siliconature Corporation for SILICONATURE-KENT CO in Caledonia, Michigan, which discharges to Plaster Creek and carries an administratively continued status with a minor discharger classification. The page lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.