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Norway TN Sanitary District 1

Sewage treatment plant, major discharger, Wind Lake, Wisconsin. NPDES permit WI0031470 expired Sep 30, 2025; its limits still apply. Last 12 months: over a limit 8 times (last June 2026), 22 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (16 values), outfall 001 form Q quarterly (3 values), outfall 701 form A monthly (6 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
6 values over a limit, 0 required values missing, 0 of 28 reports late

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

Period endingParameterReportedLimitOver by
January 2026BOD, 5-day, 20 deg. C, weekly average10.5767≤ 10 mg/L6%
February 2026Nitrogen, ammonia total [as N], weekly average3.77≤ 3.6 mg/L5%
June 2026BOD, 5-day, 20 deg. C, monthly average30.2392≤ 10 mg/L202%
June 2026BOD, 5-day, 20 deg. C, weekly average53.3333≤ 10 mg/L433%
June 2026Nitrogen, ammonia total [as N], monthly average7.708≤ 1.4 mg/L451%
June 2026Nitrogen, ammonia total [as N], weekly average13.44≤ 3.6 mg/L273%
June 2026Solids, total suspended, monthly average20.8108≤ 10 mg/L108%
June 2026Solids, total suspended, weekly average< 59.1733≤ 10 mg/L492%

Limits in force (25)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimum≥ 7 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 10 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/Lall year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedweekly average≤ 10 mg/Lall year001
Solids, total suspendedmonthly average≤ 10 mg/Lall year001
Nitrogen, total [as N]quarterly maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]weekly average≤ 3.6 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/Lall year001
Nitrogen, Kjeldahl, total [as N]quarterly maximumreport only (mg/L)all year001
Nitrite + Nitrate total [as N]quarterly maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly average≤ .66 mg/Lall year001
Chloride [as Cl]weekly average≤ 680 mg/Lall year001
Chloride [as Cl]daily maximum≤ 760 mg/Lall year001
Chloride [as Cl]monthly averagereport only (lb/d)all year001
Chloride [as Cl]monthly maximumreport only (lb/d)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year701
BOD, 5-day, 20 deg. Cmonthly maximumreport only (mg/L)all year701
Solids, total suspendedmonthly averagereport only (mg/L)all year701
Solids, total suspendedmonthly maximumreport only (mg/L)all year701
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year701
Flow, in conduit or thru treatment plantmonthly 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/WI0031470 · MCP: https://passage-data.com/mcp