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Michigan Department of Environment, Great Lakes, and Energy

Special Trade Contractors, Milford, Michigan. NPDES permit MI0057221, in force until Oct 1, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 21 days after each period: form A monthly (35 values)
Renewal application due
Apr 4, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (35)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 3 mg/Lall year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (lb/d)all year
Phosphorus, total [as P]daily maximumreport only (lb/d)all year
Phosphorus, total [as P]monthly average≤ 40 lb/yrall year
Phosphorus, total [as P]daily maximumreport only (lb/yr)all year
Benzene, ethylbenzene, toluene, xylene combinationdaily maximum≤ 20 ug/Lall year
Toluenedaily maximumreport only (ug/L)all year
Toluenedaily maximumreport only (ug/L)all year
Benzenedaily maximum= 5 ug/Lall year
Benzenedaily maximumreport only (ug/L)all year
Ethylbenzenedaily maximumreport only (ug/L)all year
Ethylbenzenedaily maximumreport only (ug/L)all year
Tetrachloroethylenedaily maximum= 5 ug/Lall year
Tetrachloroethylenedaily maximumreport only (ug/L)all year
1,1-Dichloroethylenedaily maximum= 5 ug/Lall year
1,1-Dichloroethylenedaily 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
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
Flow, totalmonthly totalreport only (Mgal)all year
Trichloroethenedaily maximum= 5 ug/Lall year
Trichloroethenedaily maximumreport only (ug/L)all year
Xylene [mix of m+o+p]daily maximumreport only (ug/L)all year
Xylene [mix of m+o+p]daily 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 11 Construction — Special Trade Contractors 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/MI0057221 · MCP: https://passage-data.com/mcp