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Sewage treatment plant, Minnesota City, Minnesota. NPDES permit MN0069817, in force until Aug 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: outfall D002 form A1 monthly (31 values), outfall D002 form A2 monthly (1 value), outfall S003 form A1 monthly (11 values)
Renewal application due
Mar 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 36 reports late

Limits in force (44)

ParameterStatisticLimitMonthsOutfall
Specific conductancequarterly maximumreport only (umho/cm)Mar, Jun, Sep, DecD002
Oxygen, dissolved [DO]monthly minimumreport only (mg/L)all yearD002
pHmonthly minimum≥ 6 SUall yearD002
pHmonthly maximum≤ 9 SUall yearD002
Bicarbonate ion- [as HCO3]quarterly maximumreport only (mg/L)Mar, Jun, Sep, DecD002
Solids, total suspendedmonthly average≤ 30 mg/Lall yearD002
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall yearD002
Solids, total suspendedmonthly average≤ 3.5 kg/dall yearD002
Solids, total suspendedmaximum weekly average≤ 5.2 kg/dall yearD002
Nitrogen, total [as N]monthly averagereport only (mg/L)Mar, SepD002
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Mar, SepD002
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, SepD002
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearD002
Phosphorus, total [as P]monthly averagereport only (kg/d)Jan, Feb, Mar, Apr, May, Oct, Nov, DecD002
Phosphorus, total [as P]monthly average≤ .85 kg/dJun–SepD002
Calcium, total [as Ca]quarterly maximumreport only (mg/L)Mar, Jun, Sep, DecD002
Magnesium, total [as Mg]quarterly maximumreport only (mg/L)Mar, Jun, Sep, DecD002
Sodium, total [as Na]quarterly maximumreport only (mg/L)Mar, Jun, Sep, DecD002
Potassium, total [as K]quarterly maximumreport only (mg/L)Mar, Jun, Sep, DecD002
Chloride [as Cl]quarterly maximumreport only (mg/L)Mar, Jun, Sep, DecD002
Sulfate, total [as SO4]quarterly maximumreport only (mg/L)Mar, Jun, Sep, DecD002
Hardness, Ca Mg Calculated [mg/L as CaCO3]quarterly maximumreport only (mg/L)Mar, Jun, Sep, DecD002
Coliform, fecal MPN + membrane ftl 44.5 Cmonthly geometric mean≤ 200 #/100mLApr–OctD002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD002
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all yearD002
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD002
Solids, total dissolvedquarterly maximumreport only (mg/L)Mar, Jun, Sep, DecD002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearD002
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/Lall yearD002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 2.9 kg/dall yearD002
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 4.6 kg/dall yearD002
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all yearD002
Solids, suspended percent removalmonthly average minimum≥ 85 %all yearD002
Precipitation, total defined period/inmonthly totalreport only (in)all yearS003
pHmonthly minimumreport only (SU)all yearS003
pHmonthly maximumreport only (SU)all yearS003
Solids, total suspendedmonthly averagereport only (mg/L)all yearS003
Solids, total suspendedmonthly maximumreport only (mg/L)all yearS003
Nitrogen, total [as N]monthly averagereport only (mg/L)Mar, SepS003
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Mar, SepS003
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, SepS003
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearS003
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all yearS003
BOD, carbonaceous [5 day, 20 C]monthly maximumreport only (mg/L)all yearS003

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/MN0069817 · MCP: https://passage-data.com/mcp