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Wolf Treatment Plant Commission

Sewage treatment plant, major discharger, Shawano, Wisconsin. NPDES permit WI0028452 expired Sep 30, 2022; its limits still apply. Last 12 months: no values over a limit, 52 required values missing, 8 of 28 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (17 values), outfall 001 form Q quarterly (1 value), outfall 701 form A monthly (8 values), outfall 701 form Q quarterly (1 value)
Last report on file
June 2026
Oct 2024 – Sep 2025
1 value over a limit, 5 required values missing, 6 of 32 reports late

Limits in force (27)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly average≤ 1 mg/Lall 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 residualweekly average≤ 38 ug/LMay–Sep001
Chlorine, total residualmonthly average≤ 38 ug/LMay–Sep001
Chlorine, total residualdaily maximum≤ 38 ug/LMay–Sep001
Mercury, total recoverablemonthly average≤ 3.9 ng/Lall year001
Coliform, fecal generalweekly geometric mean≤ 656 #/100mLMay–Sep001
Coliform, fecal generalgeometric mean≤ 400 #/100mLMay–Sep001
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
Phosphorus, total [as P]monthly averagereport only (mg/L)all year701
Phosphorus, total [as P]daily 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
Mercury, total recoverablequarterly maximumreport only (ng/L)all year701

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WI0028452 · MCP: https://passage-data.com/mcp