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City of Milton

Sewage treatment plant, Milton, Wisconsin. NPDES permit WI0060453 expired Dec 31, 2023; its limits still apply. Last 12 months: no values over a limit, 58 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (20 values), outfall 701 form A monthly (4 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 25 required values missing, 2 of 24 reports late

Limits in force (54)

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 suspendedweekly average≤ 45 mg/LJan, Mar, May, Jul, Aug, Oct, Dec001
Solids, total suspendedweekly average≤ 45 mg/LFeb001
Solids, total suspendedweekly average≤ 45 mg/LApr, Jun, Sep, Nov001
Solids, total suspendedmonthly average≤ 30 mg/LJan, Mar, May, Jul, Aug, Oct, Dec001
Solids, total suspendedmonthly average≤ 30 mg/LFeb001
Solids, total suspendedmonthly average≤ 30 mg/LApr, Jun, Sep, Nov001
Solids, total suspendedmonthly average≤ 154 lb/dJan, Mar, May, Jul, Aug, Oct, Dec001
Solids, total suspendedmonthly average≤ 170 lb/dFeb001
Solids, total suspendedmonthly average≤ 157 lb/dApr, Jun, Sep, Nov001
Solids, total suspendedweekly average≤ 217 lb/dJan, Mar, May, Jul, Aug, Oct, Dec001
Solids, total suspendedweekly average≤ 240 lb/dFeb001
Solids, total suspendedweekly average≤ 221 lb/dApr, Jun, Sep, Nov001
Nitrogen, ammonia total [as N]weekly average≤ 60 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 60 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly average≤ 1 mg/LJan001
Phosphorus, total [as P]monthly average≤ 1 mg/LFeb001
Phosphorus, total [as P]monthly average≤ 1 mg/LMar001
Phosphorus, total [as P]monthly average≤ 1 mg/LApr001
Phosphorus, total [as P]monthly average≤ 1 mg/LMay001
Phosphorus, total [as P]monthly average≤ 1 mg/LJun001
Phosphorus, total [as P]monthly average≤ 1 mg/LJul001
Phosphorus, total [as P]monthly average≤ 1 mg/LAug001
Phosphorus, total [as P]monthly average≤ 1 mg/LSep001
Phosphorus, total [as P]monthly average≤ 1 mg/LOct001
Phosphorus, total [as P]monthly average≤ 1 mg/LNov001
Phosphorus, total [as P]monthly average≤ 1 mg/LDec001
Phosphorus, total [as P]monthly average≤ 57.4 lb/dJan001
Phosphorus, total [as P]monthly average≤ 82.4 lb/dFeb001
Phosphorus, total [as P]monthly average≤ 56.4 lb/dMar001
Phosphorus, total [as P]monthly average≤ 35.3 lb/dApr001
Phosphorus, total [as P]monthly average≤ 52.9 lb/dMay001
Phosphorus, total [as P]monthly average≤ 12.3 lb/dJun001
Phosphorus, total [as P]monthly average≤ 9.21 lb/dJul001
Phosphorus, total [as P]monthly average≤ 2.2 lb/dAug001
Phosphorus, total [as P]monthly average≤ 17.8 lb/dSep001
Phosphorus, total [as P]monthly average≤ 14.7 lb/dOct001
Phosphorus, total [as P]monthly average≤ 17.9 lb/dNov001
Phosphorus, total [as P]monthly average≤ 33.7 lb/dDec001
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
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

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/WI0060453 · MCP: https://passage-data.com/mcp