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City of Reedsburg

Sewage treatment plant, major discharger, Reedsburg, Wisconsin. NPDES permit WI0020371 expired Jun 30, 2023; its limits still apply. Last 12 months: over a limit 2 times (last June 2026), 56 required values missing, 4 of 25 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (19 values), outfall 001 form Q quarterly (3 values), outfall 701 form A monthly (7 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 10 required values missing, 8 of 28 reports late

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

Period endingParameterReportedLimitOver by
October 2025Phosphorus, total [as P], monthly average.8825≤ .8 mg/L10%
June 2026Phosphorus, total [as P], monthly average.8515≤ .8 mg/L6%

Limits in force (70)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec001
BOD, 5-day, 20 deg. Cweekly average≤ 37 mg/LJun001
BOD, 5-day, 20 deg. Cweekly average≤ 32 mg/LJul, Aug001
BOD, 5-day, 20 deg. Cweekly average≤ 39 mg/LSep001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LJun001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LJul, Aug001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LSep001
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)Jun001
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)Jul, Aug001
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)Sep001
BOD, 5-day, 20 deg. Cweekly average≤ 810 lb/dJun001
BOD, 5-day, 20 deg. Cweekly average≤ 720 lb/dJul, Aug001
BOD, 5-day, 20 deg. Cweekly average≤ 850 lb/dSep001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedweekly average≤ 37 mg/LJun001
Solids, total suspendedweekly average≤ 39 mg/LSep001
Solids, total suspendedweekly average≤ 45 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec001
Solids, total suspendedweekly average≤ 32 mg/LJul, Aug001
Solids, total suspendedmonthly average≤ 30 mg/LJun001
Solids, total suspendedmonthly average≤ 30 mg/LSep001
Solids, total suspendedmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec001
Solids, total suspendedmonthly average≤ 30 mg/LJul, Aug001
Solids, total suspendedweekly average≤ 810 lb/dJun001
Solids, total suspendedweekly average≤ 850 lb/dSep001
Solids, total suspendedweekly average≤ 720 lb/dJul, Aug001
Nitrogen, total [as N]quarterly maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]weekly average≤ 34 mg/LJan, Feb, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 34 mg/LMar, Nov001
Nitrogen, ammonia total [as N]weekly average≤ 34 mg/LApr001
Nitrogen, ammonia total [as N]weekly average≤ 37 mg/LJun001
Nitrogen, ammonia total [as N]weekly average≤ 28 mg/LJul001
Nitrogen, ammonia total [as N]weekly average≤ 29 mg/LAug001
Nitrogen, ammonia total [as N]weekly average≤ 48 mg/LSep001
Nitrogen, ammonia total [as N]weekly average≤ 35 mg/LOct001
Nitrogen, ammonia total [as N]monthly average≤ 18 mg/LJun001
Nitrogen, ammonia total [as N]monthly average≤ 28 mg/LApr001
Nitrogen, ammonia total [as N]monthly average≤ 22 mg/LMar, Nov001
Nitrogen, ammonia total [as N]monthly average≤ 23 mg/LSep001
Nitrogen, ammonia total [as N]monthly average≤ 14 mg/LJul001
Nitrogen, ammonia total [as N]monthly average≤ 14 mg/LAug001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)May001
Nitrogen, ammonia total [as N]monthly average≤ 17 mg/LJan, Feb, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 17 mg/LOct001
Nitrogen, ammonia total [as N]daily maximum≤ 34 mg/LJun001
Nitrogen, ammonia total [as N]daily maximum≤ 34 mg/LApr001
Nitrogen, ammonia total [as N]daily maximum≤ 34 mg/LMar, Nov001
Nitrogen, ammonia total [as N]daily maximum≤ 34 mg/LSep001
Nitrogen, ammonia total [as N]daily maximum≤ 34 mg/LJul001
Nitrogen, ammonia total [as N]daily maximum≤ 34 mg/LAug001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)May001
Nitrogen, ammonia total [as N]daily maximum≤ 34 mg/LJan, Feb, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 34 mg/LOct001
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≤ .8 mg/Lall year001
Phosphorus, total [as P]monthly totalreport only (lb/mo)all 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
Mercury, total recoverabledaily maximum≤ 5.5 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
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 recoverabledaily 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/WI0020371 · MCP: https://passage-data.com/mcp