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Waupun Wastewater Treatment Fa

Sewage treatment plant, major discharger, Waupun, Wisconsin. NPDES permit WI0022772 expired Jun 30, 2021; its limits still apply. Last 12 months: over a limit 2 times (last June 2026), 54 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (21 values), outfall 001 form Q quarterly (4 values), outfall 701 form A monthly (6 values), outfall 701 form Q quarterly (1 value)
Last report on file
June 2026
Oct 2024 – Sep 2025
5 values over a limit, 5 required values missing, 4 of 32 reports late

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

Period endingParameterReportedLimitOver by
May 2026Chlorine, total residual, daily maximum< 100≤ 38 ug/L163%
June 2026Chlorine, total residual, daily maximum< 100≤ 38 ug/L163%

Limits in force (65)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimum≥ 7 mg/LJan, Feb, Mar, Apr, May, Jun, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]daily minimum≥ 8.5 mg/LAug001
Oxygen, dissolved [DO]daily minimum≥ 8 mg/LJul001
BOD, 5-day, 20 deg. Cweekly average≤ 10 mg/LMay, Jun, Jul, Aug, Oct001
BOD, 5-day, 20 deg. Cweekly average≤ 8.1 mg/LSep001
BOD, 5-day, 20 deg. Cweekly average≤ 14 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/LMay, Jun, Jul, Aug, Oct001
BOD, 5-day, 20 deg. Cmonthly average≤ 8.1 mg/LSep001
BOD, 5-day, 20 deg. Cmonthly average≤ 14 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cweekly average≤ 122 lb/dSep001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 8.1 SUall year001
Solids, total suspendedweekly average≤ 10 mg/LMay–Oct001
Solids, total suspendedweekly average≤ 14 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedmonthly average≤ 10 mg/LMay–Oct001
Solids, total suspendedmonthly average≤ 14 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedmonthly averagereport only (lb/d)May–Oct001
Solids, total suspendedmonthly averagereport only (lb/d)Jan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendeddaily maximumreport only (lb/d)May–Oct001
Solids, total suspendeddaily maximumreport only (lb/d)Jan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, total [as N]quarterly maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]weekly average≤ 4 mg/LJul001
Nitrogen, ammonia total [as N]weekly average≤ 5.2 mg/LSep001
Nitrogen, ammonia total [as N]weekly average≤ 3.9 mg/LAug001
Nitrogen, ammonia total [as N]weekly average≤ 14 mg/LOct001
Nitrogen, ammonia total [as N]weekly average≤ 14 mg/LMay001
Nitrogen, ammonia total [as N]weekly average≤ 6.3 mg/LJun001
Nitrogen, ammonia total [as N]monthly average≤ 3.2 mg/LJul001
Nitrogen, ammonia total [as N]monthly average≤ 3.5 mg/LSep001
Nitrogen, ammonia total [as N]monthly average≤ 2.7 mg/LAug001
Nitrogen, ammonia total [as N]monthly average≤ 9.6 mg/LOct001
Nitrogen, ammonia total [as N]monthly average≤ 14 mg/LNov001
Nitrogen, ammonia total [as N]monthly average≤ 12 mg/LFeb, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 11 mg/LJan001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Mar, Apr001
Nitrogen, ammonia total [as N]monthly average≤ 9.9 mg/LMay001
Nitrogen, ammonia total [as N]monthly average≤ 5 mg/LJun001
Nitrogen, ammonia total [as N]daily maximum≤ 14 mg/LJul001
Nitrogen, ammonia total [as N]daily maximum≤ 14 mg/LSep001
Nitrogen, ammonia total [as N]daily maximum≤ 14 mg/LAug001
Nitrogen, ammonia total [as N]daily maximum≤ 14 mg/LOct001
Nitrogen, ammonia total [as N]daily maximum≤ 14 mg/LNov001
Nitrogen, ammonia total [as N]daily maximum≤ 14 mg/LFeb, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 14 mg/LJan001
Nitrogen, ammonia total [as N]daily maximum≤ 14 mg/LMar, Apr001
Nitrogen, ammonia total [as N]daily maximum≤ 14 mg/LMay001
Nitrogen, ammonia total [as N]daily maximum≤ 14 mg/LJun001
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≤ 1 mg/Lall year001
Phosphorus, total [as P]monthly averagereport only (lb/d)all year001
Phosphorus, total [as P]daily maximumreport only (lb/d)all year001
Chloride [as Cl]weekly average≤ 495 mg/Lall year001
Chloride [as Cl]weekly average≤ 7420 lb/dall year001
Chlorine, total residualweekly average≤ 8.6 ug/LMay–Sep001
Chlorine, total residualdaily maximum≤ 38 ug/LMay–Sep001
Mercury, total recoverablequarterly maximumreport only (ng/L)all year001
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
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/WI0022772 · MCP: https://passage-data.com/mcp