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Pine Island city of

Sewage treatment plant, Pine Island, Minnesota. NPDES permit MN0024511, in force until Feb 29, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: outfall D018 form A1 monthly (35 values), outfall D018 form A3 monthly (1 value), outfall S019 form A1 monthly (14 values)
Renewal application due
Sep 2, 2027 · 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 (53)

ParameterStatisticLimitMonthsOutfall
Specific conductancemonthly maximumreport only (umho/cm)Mar, SepD018
Oxygen, dissolved [DO]monthly minimumreport only (mg/L)all yearD018
pHmonthly minimum≥ 6 SUall yearD018
pHmonthly maximum≤ 9 SUall yearD018
Bicarbonate ion- [as HCO3]monthly maximumreport only (mg/L)Mar, SepD018
Solids, total suspendedmonthly average≤ 30 mg/Lall yearD018
Solids, total suspendedmonthly maximumreport only (mg/L)JulD018
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall yearD018
Solids, total suspendedmonthly average≤ 79.9 kg/dall yearD018
Solids, total suspendedmaximum weekly average≤ 119.9 kg/dall yearD018
Nitrogen, total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecD018
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Mar, SepD018
Nitrogen, Kjeldahl, total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecD018
Nitrite + Nitrate total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecD018
Phosphorus, total [as P]monthly average≤ 1 mg/Lall yearD018
Phosphorus, total [as P]monthly averagereport only (kg/d)all yearD018
Phosphorus, total [as P]annual total≤ 974 kg/yrall yearD018
Calcium, total [as Ca]monthly maximumreport only (mg/L)Mar, SepD018
Magnesium, total [as Mg]monthly maximumreport only (mg/L)Mar, SepD018
Sodium, total [as Na]monthly maximumreport only (mg/L)Mar, SepD018
Potassium, total [as K]monthly maximumreport only (mg/L)Mar, SepD018
Chloride [as Cl]monthly maximumreport only (mg/L)Mar, SepD018
Sulfate, total [as SO4]monthly maximumreport only (mg/L)Mar, SepD018
Hardness, Ca Mg Calculated [mg/L as CaCO3]monthly maximumreport only (mg/L)Mar, SepD018
Coliform, fecal MPN + membrane ftl 44.5 Cmonthly geometric mean≤ 200 #/100mLApr–OctD018
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD018
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all yearD018
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD018
Chlorine, total residualdaily maximum≤ .038 mg/LApr–OctD018
Solids, total dissolvedmonthly averagereport only (mg/L)Mar, SepD018
Solids, total dissolvedmonthly maximumreport only (mg/L)Mar, SepD018
Mercury, dissolved [as Hg]monthly maximumreport only (ng/L)JulD018
Mercury, total [as Hg]monthly maximumreport only (ng/L)JulD018
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearD018
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/Lall yearD018
BOD, carbonaceous [5 day, 20 C]monthly average≤ 66.6 kg/dall yearD018
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 106.6 kg/dall yearD018
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all yearD018
Solids, suspended percent removalmonthly average minimum≥ 85 %all yearD018
Precipitation, total defined period/inmonthly totalreport only (in)all yearS019
pHmonthly minimumreport only (SU)all yearS019
pHmonthly maximumreport only (SU)all yearS019
Solids, total suspendedmonthly averagereport only (mg/L)all yearS019
Solids, total suspendedmonthly maximumreport only (mg/L)all yearS019
Nitrogen, total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecS019
Nitrogen, Kjeldahl, total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecS019
Nitrite + Nitrate total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecS019
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearS019
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearS019
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all yearS019
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearS019
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all yearS019
BOD, carbonaceous [5 day, 20 C]monthly maximumreport only (mg/L)all yearS019

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MN0024511 · MCP: https://passage-data.com/mcp