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U.S. Department of the Interior, U.S. Fish and Wildlife Service

Federal facility (Fish Hatcheries And Preserves), Brimley, Michigan. NPDES permit MI0004090, in force until Oct 1, 2027. Last 12 months: over a limit 2 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 21 days after each period: outfall 001 form A monthly (12 values), outfall 002 form A monthly (17 values)
Renewal application due
Apr 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 24 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
December 2025Solids, total suspended, daily maximum12≤ 6 mg/L100%
September 2026Solids, total suspended, daily maximum7≤ 6 mg/L17%

Limits in force (29)

ParameterStatisticLimitMonthsOutfall
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Solids, total suspendeddaily maximum≤ 6 mg/Lall year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)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
Chlorine, total residualdaily maximum≤ 38 ug/Lall year001
Outfall observation,visual, y/n responsevaluereport only (N=0;Y=1)all year001
Hydrogen peroxidedaily maximum= 180 ug/Lall year002
Hydrogen peroxidedaily maximum= .3 lb/dall year002
pHdaily minimum≥ 6.5 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Solids, total suspendeddaily maximum≤ 6 mg/Lall year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all year002
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all year002
Phosphorus, total [as P]daily maximum≤ 1.6 lb/dall year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all 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
Chlorine, total residualdaily maximum≤ 38 ug/Lall year002
Formaldehydedaily maximum≤ 1600 ug/Lall 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 9 Fishing, Hunting and Trapping 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/MI0004090 · MCP: https://passage-data.com/mcp