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Village of North Freedom

Sewage treatment plant, North Freedom, Wisconsin. NPDES permit WI0028011 expired Dec 31, 2023; its limits still apply. Last 12 months: over a limit 8 times (last June 2026), 28 required values missing, 12 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (8 values), outfall 701 form A monthly (6 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
12 values over a limit, 0 required values missing, 16 of 24 reports late

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

Period endingParameterReportedLimitOver by
January 2026Phosphorus, total [as P], monthly average.405≤ .3 mg/L35%
February 2026Phosphorus, total [as P], monthly average.3725≤ .3 mg/L24%
March 2026BOD, 5-day, 20 deg. C, monthly average32≤ 30 mg/L7%
March 2026Phosphorus, total [as P], monthly average.308≤ .3 mg/L3%
April 2026BOD, 5-day, 20 deg. C, monthly average40≤ 30 mg/L33%
April 2026BOD, 5-day, 20 deg. C, weekly average58≤ 45 mg/L29%
May 2026BOD, 5-day, 20 deg. C, monthly average31.25≤ 30 mg/L4%
June 2026BOD, 5-day, 20 deg. C, weekly average46≤ 45 mg/L2%

Limits in force (14)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 60 mg/Lall year001
Nitrogen, ammonia total [as N]weekly average≤ 108 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 108 mg/Lall year001
Phosphorus, total [as P]monthly average≤ .3 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year701
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year701
Solids, total suspendedmonthly averagereport only (mg/L)all year701
Solids, total suspendeddaily maximumreport only (mg/L)all year701
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year701
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year701

How strict are these limits?

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

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/WI0028011 · MCP: https://passage-data.com/mcp