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Clean Water Act discharge permit · NPDES MIS111819

A G SIMPSON USA INC-18 1/2 RD, Sterling Heights, MI: NPDES MIS111819 discharge permit, effluent exceedances, inspections, penalties

A G SIMPSON USA INC-18 1/2 RD, held by A.G. Simpson (USA) Incorporated, holds NPDES permit MIS111819, which discharges to Plum Brook. 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 (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for A G SIMPSON USA INC-18 1/2 RD: its NPDES ID, its permit type and status, its dates, its address in Sterling Heights, Michigan, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MIS111819.

Identity

Facility as filedA G SIMPSON USA INC-18 1/2 RD
Permittee as filedA.G. Simpson (USA) Incorporated
NPDES IDMIS111819
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedOctober 22, 2021
Expiration dateApril 1, 2026
Issuing agencyState
AddressSterling Heights, MI 48314
Receiving waterPlum Brook
Receiving water impaired303(D) Listed
SubwatershedPlum Brook (HUC 040900030204)
SIC3465 – Automotive Stampings

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

EPA’s limits and effluent violation files hold no pollutant row for NPDES MIS111819.

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 MIS111819.

Inspections

EPA’s inspection file holds no inspection for NPDES MIS111819.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES MIS111819.

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, MIS111819.

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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 MIS111819 there.

Nearby on the register

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

What this page shows

The A G SIMPSON USA INC-18 1/2 RD permit is one of 35 general permit coverages in Sterling Heights, and 20.0% of those 35 coverages have a violation on file. Among the 35 Sterling Heights coverages, this permit was issued earlier than 51.4% of them, and it sits within the 41 NPDES permits in the Plum Brook subwatershed. It records no pollutants under a numeric limit and no effluent exceedances.