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Consolidated Koshkonong Sanitary District

Sewage treatment plant, Fulton, Wisconsin. NPDES permit WI0021059 expired Sep 30, 2023; its limits still apply. Last 12 months: no values over a limit, 66 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 (8 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 25 required values missing, 0 of 24 reports late

Limits in force (37)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/LJan–Mar001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LJan–Mar001
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)Jan–Mar001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 60 mg/LJan, Mar, May, Jul, Aug, Oct, Dec001
Solids, total suspendedmonthly average≤ 60 mg/LApr, Jun, Sep, Nov001
Solids, total suspendedmonthly average≤ 60 mg/LFeb001
Solids, total suspendedweekly average≤ 360 lb/dJan, Mar, May, Jul, Aug, Oct, Dec001
Solids, total suspendedweekly average≤ 380 lb/dApr, Jun, Sep, Nov001
Solids, total suspendedweekly average≤ 400 lb/dFeb001
Solids, total suspendedmonthly average≤ 294 lb/dJan, Mar, May, Jul, Aug, Oct, Dec001
Solids, total suspendedmonthly average≤ 302 lb/dApr, Jun, Sep, Nov001
Solids, total suspendedmonthly average≤ 326 lb/dFeb001
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/Lall 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
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, carbonaceous [5 day, 5 C]weekly average≤ 40 mg/LApr–Dec001
BOD, carbonaceous [5 day, 5 C]monthly average≤ 25 mg/LApr–Dec001
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
BOD, carbonaceous [5 day, 5 C]monthly averagereport only (mg/L)Apr–Dec701
BOD, carbonaceous [5 day, 5 C]daily maximumreport only (mg/L)Apr–Dec701

How strict are these limits?

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

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Your permit document is the final word. As JSON: /api/v1/permits/WI0021059 · MCP: https://passage-data.com/mcp