Clean Water Act discharge permit · NPDES MIS110710

MAYVILLE ENG CO-BYRON CENTER, Byron Center, MI: NPDES MIS110710 discharge permit, effluent exceedances, inspections, penalties

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

MAYVILLE ENG CO-BYRON CENTER, held by Mayville Engineering Company - Byron Center, holds NPDES permit MIS110710, which discharges to Buck Creek. EPA’s file records it issued October 22, 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.

Identity

Facility as filed	MAYVILLE ENG CO-BYRON CENTER
Permittee as filed	Mayville Engineering Company - Byron Center
NPDES ID	MIS110710
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	October 22, 2021
Expiration date	April 1, 2026
Issuing agency	State
Address	Byron Center, MI 49315
Receiving water	Buck Creek
Subwatershed	Sharps Creek-Buck Creek (HUC 040500060508)
Other EPA IDs (FRS)	RCRA handler MID058339581

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

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 MIS110710.

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

2Single-event violations

Date	What EPA recorded	Agency
August 7, 2024	Failure to develop, maintain, or get approval of an adequate SWPPP (industrial stormwater)	ST6
August 7, 2024	Discharge from an industrial stormwater outfall to waters of the U.S. without NPDES permit coverage	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

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, MIS110710.

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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 MIS110710 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES MIS110710, held by Mayville Engineering Company - Byron Center for the MAYVILLE ENG CO-BYRON CENTER facility in Byron Center, MI, which discharges to Buck Creek within the Sharps Creek-Buck Creek subwatershed (HUC 040500060508). The permit is listed as Effective and as Coverage under a general permit for a Minor discharger, with issue and expiration dates of October 22, 2021 and April 1, 2026, and the register lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.