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DTE Electric Company

Electric Services, Avoca, Michigan. NPDES permit MI0036978 expired Oct 1, 2026; its limits still apply. Last 12 months: no values over a limit, 4 required values missing, 1 of 48 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 21 days after each period: form A monthly (22 values), form B monthly (10 values), form C monthly (10 values), form D monthly (12 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 48 reports late

Limits in force (54)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
BOD, 5-day, 20 deg. Cmonthly average= 30 mg/Lall year
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average= 40 mg/Lall year
Solids, total suspended7-day average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspendeddaily maximum≤ 100 mg/Lall year
Solids, total suspendeddaily maximum≤ 100 mg/Lall year
Oil & Greasemonthly average≤ 15 mg/Lall year
Oil & Greasemonthly average≤ 15 mg/Lall year
Oil & Greasedaily maximum≤ 20 mg/Lall year
Oil & Greasedaily maximum≤ 20 mg/Lall year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Chloride [as Cl]daily maximumreport only (mg/L)all year
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year
Copper, total [as Cu]monthly average= 1 mg/Lall year
Copper, total [as Cu]monthly average= 1 mg/Lall year
Copper, total [as Cu]daily maximum≤ 1 mg/Lall year
Copper, total [as Cu]daily maximum≤ 1 mg/Lall year
Iron, total [as Fe]monthly average= 1 mg/Lall year
Iron, total [as Fe]monthly average= 1 mg/Lall year
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year
Oxidants, total residualdaily maximum≤ 38 ug/Lall year
Oxidants, total residualinstantaneous maximum≤ 300 ug/Lall year
Oxidants, total residualdaily maximum≤ 200 ug/Lall year
Oxidants, total residualdaily maximum= 50 ug/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)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, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Solids, total dissolveddaily maximumreport only (mg/L)all year
Mercury, total [as Hg]monthly averagereport only (ng/L)all year
Mercury, total [as Hg]daily maximumreport only (ng/L)all year
Mercury, total [as Hg]monthly averagereport only (lb/d)all year
Mercury, total [as Hg]daily maximumreport only (lb/d)all year
Mercury, total [as Hg]12-month average≤ 4 ng/Lall year
Mercury, total [as Hg]12-month average≤ .0006 lb/dall year
Coliform, fecal generalmonthly geometric mean= 200 #/100mLall year
Coliform, fecal general7-day geometric mean= 400 #/100mLall year
Coliform, fecal generaldaily maximumreport only (#/100mL)all year
Chlorination durationdaily maximumreport only (min/d)all year
Chlorination durationdaily maximum= 160 min/dall 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 27 Electric Services permits in Michigan.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MI0036978 · MCP: https://passage-data.com/mcp