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Great Lakes Water Institute

Fish Hatcheries And Preserves, Milwaukee, Wisconsin. NPDES permit WI0045942 expired Dec 31, 2023; its limits still apply. Last 12 months: no values over a limit, 54 required values missing, 21 of 33 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (12 values), outfall 002 form A monthly (11 values), outfall 004 form A monthly (4 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 15 of 36 reports late

Limits in force (35)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cmonthly average≤ 20 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 20 mg/Lall year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 12 mg/LJan, Feb, Mar, Dec001
Solids, total suspendedmonthly average≤ 12 mg/LApr–Nov001
Solids, total suspendeddaily maximum≤ 20 mg/LJan, Feb, Mar, Dec001
Solids, total suspendeddaily maximum≤ 12 mg/LApr–Nov001
Solids, total suspendedmonthly averagereport only (lb/d)Jan, Feb, Mar, Dec001
Solids, total suspendedmonthly averagereport only (lb/d)Apr–Nov001
Solids, total suspendeddaily maximumreport only (lb/d)Jan, Feb, Mar, Dec001
Solids, total suspendeddaily maximumreport only (lb/d)Apr–Nov001
Phosphorus, total [as P]rolling average≤ 1 mg/Lall year001
Phosphorus, total [as P]monthly averagereport only (lb/d)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
BOD, 5-day, 20 deg. Cdaily maximum≤ 20 mg/Lall year002
pHdaily minimum≥ 6 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 12 mg/LJan, Feb, Mar, Dec002
Solids, total suspendedmonthly average≤ 12 mg/LApr–Nov002
Solids, total suspendeddaily maximum≤ 20 mg/LJan, Feb, Mar, Dec002
Solids, total suspendeddaily maximum≤ 12 mg/LApr–Nov002
Solids, total suspendedmonthly averagereport only (lb/d)Jan, Feb, Mar, Dec002
Solids, total suspendedmonthly averagereport only (lb/d)Apr–Nov002
Solids, total suspendeddaily maximumreport only (lb/d)Jan, Feb, Mar, Dec002
Solids, total suspendeddaily maximumreport only (lb/d)Apr–Nov002
Phosphorus, total [as P]rolling average≤ 1 mg/Lall year002
Phosphorus, total [as P]monthly averagereport only (lb/d)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
Phosphorus, total [as P]monthly averagereport only (lb/d)all year004
Phosphorus, total [as P]daily maximumreport only (lb/d)all year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004

How strict are these limits?

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

Same industry: the 12 Fishing, Hunting and Trapping permits in Wisconsin.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WI0045942 · MCP: https://passage-data.com/mcp