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Village of Marshall

Sewage treatment plant, Marshall, Wisconsin. NPDES permit WI0024627 expired Mar 31, 2024; its limits still apply. Last 12 months: no values over a limit, 56 required values missing, 16 of 22 reports late. 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 (6 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 10 required values missing, 0 of 24 reports late

Limits in force (82)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
Oxygen, dissolved [DO]daily minimum≥ 7 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 22 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cweekly average≤ 11 mg/LMay–Oct001
BOD, 5-day, 20 deg. Cmonthly average≤ 22 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cmonthly average≤ 11 mg/LMay–Oct001
BOD, 5-day, 20 deg. Cweekly average≤ 110 lb/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cweekly average≤ 51 lb/dMay–Oct001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedweekly average≤ 22 mg/LApr, Nov001
Solids, total suspendedweekly average≤ 11 mg/LMay, Jul, Aug, Oct001
Solids, total suspendedweekly average≤ 11 mg/LJun, Sep001
Solids, total suspendedweekly average≤ 22 mg/LJan, Mar, Dec001
Solids, total suspendedweekly average≤ 22 mg/LFeb001
Solids, total suspendedmonthly average≤ 22 mg/LApr, Nov001
Solids, total suspendedmonthly average≤ 11 mg/LMay, Jul, Aug, Oct001
Solids, total suspendedmonthly average≤ 11 mg/LJun, Sep001
Solids, total suspendedmonthly average≤ 22 mg/LJan, Mar, Dec001
Solids, total suspendedmonthly average≤ 22 mg/LFeb001
Solids, total suspendedmonthly average≤ 50 lb/dApr, Nov001
Solids, total suspendedmonthly average≤ 50.3 lb/dMay, Jul, Aug, Oct001
Solids, total suspendedmonthly average≤ 50 lb/dJun, Sep001
Solids, total suspendedmonthly average≤ 50.3 lb/dJan, Mar, Dec001
Solids, total suspendedmonthly average≤ 58.6 lb/dFeb001
Solids, total suspendeddaily maximum≤ 70.5 lb/dApr, Nov001
Solids, total suspendeddaily maximum≤ 71 lb/dMay, Jul, Aug, Oct001
Solids, total suspendeddaily maximum≤ 70.5 lb/dJun, Sep001
Solids, total suspendeddaily maximum≤ 71 lb/dJan, Mar, Dec001
Solids, total suspendeddaily maximum≤ 82.6 lb/dFeb001
Nitrogen, ammonia total [as N]weekly average≤ 8.3 mg/LApr001
Nitrogen, ammonia total [as N]weekly average≤ 8.3 mg/LMay001
Nitrogen, ammonia total [as N]weekly average≤ 6 mg/LJun–Aug001
Nitrogen, ammonia total [as N]weekly average≤ 8.3 mg/LSep001
Nitrogen, ammonia total [as N]weekly average≤ 8.3 mg/LOct001
Nitrogen, ammonia total [as N]weekly average≤ 14 mg/LJan, Feb, Mar, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 4.7 mg/LApr001
Nitrogen, ammonia total [as N]monthly average≤ 6.5 mg/LMay001
Nitrogen, ammonia total [as N]monthly average≤ 4.7 mg/LJun–Aug001
Nitrogen, ammonia total [as N]monthly average≤ 6.9 mg/LSep001
Nitrogen, ammonia total [as N]monthly average≤ 4.7 mg/LOct001
Nitrogen, ammonia total [as N]monthly average≤ 7.6 mg/LJan, Feb, Mar, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 8.9 mg/LApr001
Nitrogen, ammonia total [as N]daily maximum≤ 8.9 mg/LMay001
Nitrogen, ammonia total [as N]daily maximum≤ 8.9 mg/LJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 8.9 mg/LSep001
Nitrogen, ammonia total [as N]daily maximum≤ 8.9 mg/LOct001
Nitrogen, ammonia total [as N]daily maximum≤ 8.9 mg/LJan, Feb, Mar, Nov, Dec001
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≤ 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≤ 2.91 lb/dApr001
Phosphorus, total [as P]monthly average≤ 2.72 lb/dMay001
Phosphorus, total [as P]monthly average≤ 3.26 lb/dJun001
Phosphorus, total [as P]monthly average≤ 3.12 lb/dJul001
Phosphorus, total [as P]monthly average≤ 3.18 lb/dAug001
Phosphorus, total [as P]monthly average≤ 3.46 lb/dSep001
Phosphorus, total [as P]monthly average≤ 3.28 lb/dOct001
Phosphorus, total [as P]monthly average≤ 3.44 lb/dNov001
Phosphorus, total [as P]monthly average≤ 3.09 lb/dDec001
Phosphorus, total [as P]monthly average≤ 3.35 lb/dJan001
Phosphorus, total [as P]monthly average≤ 4.04 lb/dFeb001
Phosphorus, total [as P]monthly average≤ 3.23 lb/dMar001
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, 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

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/WI0024627 · MCP: https://passage-data.com/mcp