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Dane Iowa Wastewater Commission

Sewage treatment plant, Mazomanie, Wisconsin. NPDES permit WI0049816 expired Sep 30, 2022; its limits still apply. Last 12 months: no values over a limit, 60 required values missing, 14 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (22 values), outfall 703 form A monthly (6 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 10 required values missing, 20 of 24 reports late

Limits in force (42)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedweekly average≤ 30 mg/LMay–Oct001
Solids, total suspendedweekly average≤ 45 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedmonthly average≤ 30 mg/LMay–Oct001
Solids, total suspendedmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendeddaily maximumreport only (mg/L)May–Oct001
Solids, total suspendeddaily maximumreport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 14 mg/LJan, Feb, Mar, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 14 mg/LApr, May001
Nitrogen, ammonia total [as N]weekly average≤ 32 mg/LJun–Sep001
Nitrogen, ammonia total [as N]monthly average≤ 14 mg/LJan, Feb, Mar, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 13 mg/LApr, May001
Nitrogen, ammonia total [as N]monthly average≤ 15 mg/LJun–Sep001
Nitrogen, ammonia total [as N]daily maximum≤ 14 mg/LJan, Feb, Mar, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 14 mg/LApr, May001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jun–Sep001
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (lb/d)all year001
Phosphorus, total [as P]daily maximumreport only (lb/d)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
Coliform, fecal generalweekly geometric mean≤ 656 #/100mLMay–Sep001
Coliform, fecal generalgeometric mean≤ 400 #/100mLMay–Sep001
BOD, carbonaceous [5 day, 5 C]weekly average≤ 30 mg/LMay–Oct001
BOD, carbonaceous [5 day, 5 C]weekly average≤ 40 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 5 C]monthly average≤ 25 mg/LMay–Oct001
BOD, carbonaceous [5 day, 5 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 5 C]daily maximumreport only (mg/L)May–Oct001
BOD, carbonaceous [5 day, 5 C]daily maximumreport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 5 C]monthly averagereport only (lb/d)May–Oct001
BOD, carbonaceous [5 day, 5 C]monthly averagereport only (lb/d)Jan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 5 C]daily maximumreport only (lb/d)May–Oct001
BOD, carbonaceous [5 day, 5 C]weekly average≤ 170 lb/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year703
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year703
Solids, total suspendedmonthly averagereport only (mg/L)all year703
Solids, total suspendeddaily maximumreport only (mg/L)all year703
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year703
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year703

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/WI0049816 · MCP: https://passage-data.com/mcp