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MAHLE Engine Components USA, Inc.

Motor Vehicle Parts And Accessories, Muskegon Heights, Michigan. NPDES permit MI0004057 expired Oct 1, 2023; its limits still apply. Last 12 months: no values over a limit, 18 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 21 days after each period: form A monthly (21 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 24 required values missing, 0 of 12 reports late

Limits in force (23)

ParameterStatisticLimitMonths
Chromium, hexavalent [as Cr]monthly average= 11 ug/Lall year
Chromium, hexavalent [as Cr]daily maximum= 32 ug/Lall year
Tetrachloroethylenedaily maximum= 5 ug/Lall year
Tetrachloroethylenedaily maximumreport only (ug/L)all year
1,1-Dichloroethanedaily maximum= 5 ug/Lall year
1,1-Dichloroethanedaily maximumreport only (ug/L)all year
trans-1,2-Dichloroethylenedaily maximum= 5 ug/Lall year
trans-1,2-Dichloroethylenedaily maximumreport only (ug/L)all year
Vinyl chloridedaily maximum= 3 ug/Lall year
Vinyl chloridedaily maximumreport only (ug/L)all year
Trichloroethylenemonthly averagereport only (ug/L)all year
Trichloroethylenedaily maximum≤ 3 ug/Lall year
Trichloroethylenedaily maximumreport only (ug/L)all year
Equipment inspection - visualvaluereport only (N=0;Y=1)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Xylene [mix of m+o+p]daily maximum= 5 ug/Lall year
Xylene [mix of m+o+p]daily maximumreport only (ug/L)all year
1,2-cis-Dichloroethylenedaily maximum= 5 ug/Lall year
1,2-cis-Dichloroethylenedaily maximumreport only (ug/L)all year
cis-1,2-Dichloroethenedaily maximum= 5 ug/Lall year
cis-1,2-Dichloroethenedaily maximumreport only (ug/L)all year
Outfall observation,visual, y/n responsevaluereport only (N=0;Y=1)all year

How strict are these limits?

Cited limits by parameter: Michigan's rules and the federal ones.

Same industry: the 3 Transportation Equipment permits in Michigan.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MI0004057 · MCP: https://passage-data.com/mcp