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Wadena city of

Sewage treatment plant, Wadena, Minnesota. NPDES permit MN0020672, in force until Jun 30, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: outfall D035 form A1 monthly (25 values), outfall D035 form A3 monthly (1 value), outfall S038 form A1 monthly (11 values)
Renewal application due
Jan 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 37 reports late

Limits in force (46)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly minimumreport only (mg/L)all yearD035
pHmonthly minimum≥ 6 SUall yearD035
pHmonthly maximum≤ 9 SUall yearD035
Solids, total suspendedmonthly average≤ 30 mg/Lall yearD035
Solids, total suspendedmonthly maximumreport only (mg/L)JulD035
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall yearD035
Solids, total suspendedmonthly average≤ 85 kg/dall yearD035
Solids, total suspendedmaximum weekly average≤ 126 kg/dall yearD035
Nitrogen, total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecD035
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LJun–SepD035
Nitrogen, ammonia total [as N]monthly average≤ 8 mg/LOct, NovD035
Nitrogen, ammonia total [as N]monthly average≤ 15 mg/LJan, Feb, Mar, DecD035
Nitrogen, ammonia total [as N]monthly average≤ 8 mg/LApr, MayD035
Nitrogen, ammonia total [as N]monthly average≤ 5.6 kg/dJun–SepD035
Nitrogen, ammonia total [as N]monthly average≤ 23 kg/dOct, NovD035
Nitrogen, ammonia total [as N]monthly average≤ 42 kg/dJan, Feb, Mar, DecD035
Nitrogen, ammonia total [as N]monthly average≤ 23 kg/dApr, MayD035
Nitrogen, Kjeldahl, total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecD035
Nitrite + Nitrate total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecD035
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearD035
Phosphorus, total [as P]monthly averagereport only (kg/d)all yearD035
Phosphorus, total [as P]annual total≤ 1036 kg/yrall yearD035
Coliform, fecal MPN + membrane ftl 44.5 Cmonthly geometric mean≤ 200 #/100mLApr–OctD035
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD035
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all yearD035
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD035
Solids, total dissolvedmonthly averagereport only (mg/L)Mar, SepD035
Mercury, dissolved [as Hg]monthly maximumreport only (ng/L)JulD035
Mercury, total [as Hg]monthly maximumreport only (ng/L)JulD035
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall yearD035
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 15 mg/Lall yearD035
BOD, carbonaceous [5 day, 20 C]monthly average≤ 28 kg/dall yearD035
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 43 kg/dall yearD035
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all yearD035
Solids, suspended percent removalmonthly average minimum≥ 85 %all yearD035
Precipitation, total defined period/inmonthly totalreport only (in)all yearS038
pHmonthly minimumreport only (SU)all yearS038
pHmonthly maximumreport only (SU)all yearS038
Solids, total suspendedmonthly averagereport only (mg/L)all yearS038
Solids, total suspendedmonthly maximumreport only (mg/L)all yearS038
Nitrogen, total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecS038
Nitrogen, Kjeldahl, total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecS038
Nitrite + Nitrate total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecS038
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearS038
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all yearS038
BOD, carbonaceous [5 day, 20 C]monthly maximumreport only (mg/L)all yearS038

How strict are these limits?

Cited limits by parameter: Minnesota'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/MN0020672 · MCP: https://passage-data.com/mcp