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Indiana Michigan Power Company

Electric Services, major discharger, Bridgman, Michigan. NPDES permit MI0005827 expired Oct 1, 2018; its limits still apply. Last 12 months: no values over a limit, 20 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 21 days after each period: outfall 001 form A monthly (14 values), outfall 001 form A1 monthly (6 values), outfall 001 form B1 monthly (6 values), outfall 001 form C1 monthly (6 values), outfall 001 form G1 monthly (6 values), outfall 001 form H1 monthly (6 values), and 2 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 24 required values missing, 0 of 96 reports late

Limits in force (84)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
Thermal Dischargedaily maximumreport only (MBTU/hr)all year001
Thermal Dischargedaily maximum≤ 17300 MBTU/hrall year001
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendeddaily maximum≤ 100 mg/Lall year001
Solids, total suspendeddaily maximum≤ 100 mg/Lall year001
Solids, total suspendeddaily maximum≤ 100 mg/Lall year001
Solids, total suspendeddaily maximum≤ 100 mg/Lall year001
Solids, total suspendeddaily maximum≤ 100 mg/Lall year001
Solids, total suspendeddaily maximum≤ 100 mg/Lall year001
Oil & Greasemonthly average≤ 15 mg/Lall year001
Oil & Greasemonthly average≤ 15 mg/Lall year001
Oil & Greasemonthly average≤ 15 mg/Lall year001
Oil & Greasemonthly average≤ 15 mg/Lall year001
Oil & Greasemonthly average≤ 15 mg/Lall year001
Oil & Greasemonthly average≤ 15 mg/Lall year001
Oil & Greasedaily maximum≤ 20 mg/Lall year001
Oil & Greasedaily maximum≤ 20 mg/Lall year001
Oil & Greasedaily maximum≤ 20 mg/Lall year001
Oil & Greasedaily maximum≤ 20 mg/Lall year001
Oil & Greasedaily maximum≤ 20 mg/Lall year001
Oil & Greasedaily maximum≤ 20 mg/Lall year001
Copper, total [as Cu]monthly average≤ 1 mg/Lall year001
Copper, total [as Cu]daily maximum≤ 1 mg/Lall year001
Iron, total [as Fe]monthly average≤ 1 mg/Lall year001
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year001
Total residual ooxidant-discharge timedaily maximumreport only (min/d)all year001
Oxidants, total residualdaily maximum≤ 38 ug/Lall year001
Oxidants, total residualdaily maximum≤ 200 ug/Lall year001
Oxidants, total residualdaily maximum≤ 50 ug/Lall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Mercury, total [as Hg]monthly averagereport only (ng/L)Jan, Apr, Jul, Oct001
Mercury, total [as Hg]daily maximumreport only (ng/L)Jan, Apr, Jul, Oct001
Mercury, total [as Hg]monthly averagereport only (lb/d)Jan, Apr, Jul, Oct001
Mercury, total [as Hg]daily maximumreport only (lb/d)Jan, Apr, Jul, Oct001
Mercury, total [as Hg]monthly averagereport only (ng/L)Jan, Apr, Jul, Oct001
Mercury, total [as Hg]daily maximumreport only (ng/L)Jan, Apr, Jul, Oct001
Mercury, total [as Hg]monthly averagereport only (lb/d)Jan, Apr, Jul, Oct001
Mercury, total [as Hg]daily maximumreport only (lb/d)Jan, Apr, Jul, Oct001
Hydrazinemaximum monthly average≤ 1 ug/Lall year001
Hydrazinemonthly average≤ 3 ug/Lall year001
Hydrazinemaximum monthly average≤ 13 lb/dall year001
Hydrazinemonthly averagereport only (lb/d)all year001
Outfall observation,visual, y/n responsevaluereport only (N=0;Y=1)all year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year002
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year002
Thermal Dischargedaily maximumreport only (MBTU/hr)all year002
pHdaily minimum≥ 6.5 SUall year002
pHdaily maximum≤ 9 SUall year002
Total residual ooxidant-discharge timedaily maximumreport only (min/d)all year002
Oxidants, total residualdaily maximum≤ 38 ug/Lall year002
Oxidants, total residualdaily maximum≤ 200 ug/Lall year002
Oxidants, total residualdaily maximum≤ 50 ug/Lall year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Mercury, total [as Hg]monthly averagereport only (ng/L)Jan, Apr, Jul, Oct002
Mercury, total [as Hg]daily maximumreport only (ng/L)Jan, Apr, Jul, Oct002
Mercury, total [as Hg]monthly averagereport only (lb/d)Jan, Apr, Jul, Oct002
Mercury, total [as Hg]daily maximumreport only (lb/d)Jan, Apr, Jul, Oct002
Mercury, total [as Hg]maximum monthly averagereport only (ng/L)all year002
Mercury, total [as Hg]maximum monthly averagereport only (lb/d)all year002
Hydrazinemaximum monthly averagereport only (ug/L)all year002
Outfall observation,visual, y/n responsevaluereport only (N=0;Y=1)all year002

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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MI0005827 · MCP: https://passage-data.com/mcp