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White Earth Reservation

Sewerage Systems, Ponsford, Minnesota. NPDES permit MN0059439 expired Sep 14, 2023; its limits still apply. Last 12 months: no values over a limit, 232 required values missing, 11 of 14 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 21 days after each period: form Q quarterly (8 values), form A quarterly, form AU, form QU
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 120 required values missing, 8 of 16 reports late

Limits in force (61)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year
Oxygen, dissolved [DO]instantaneous minimumreport only (mg/L)all year
pHminimum≥ 6 SUall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
pHmaximum≤ 9 SUall year
pHmaximumreport only (SU)all year
pHmaximumreport only (SU)all year
Solids, total suspendedmonthly average≤ 45 mg/Lall year
Solids, total suspended30-day average≤ 45 mg/Lall year
Solids, total suspendedweekly average≤ 65 mg/Lall year
Solids, total suspended7-day average≤ 65 mg/Lall year
Solids, total suspendedmonthly average≤ 46 kg/dall year
Solids, total suspended30-day average≤ 46 kg/dall year
Solids, total suspendedweekly average≤ 66 kg/dall year
Solids, total suspended7-day average≤ 66 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)Mar, Sep
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Mar, Sep
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Mar, Sep
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Sep
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (kg/d)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]rolling average≤ 70 kg/yrall year
Sulfate, total [as SO4]monthly averagereport only (mg/L)Jun, Dec
Sulfate, total [as SO4]30-day averagereport only (mg/L)all year
Rainfallmonthly totalreport only (in)all year
Rainfallmonthly totalreport only (in)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plant30-day averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all year
Flow, in conduit or thru treatment plant30-day averagereport only (MGD)all year
Flow, in conduit or thru treatment plant30-day averagereport only (MGD)all year
E. colimonthly geometric mean≤ 126 #/100mLApr–Oct
E. coligeometric mean≤ 126 #/100mLApr–Oct
E. colidaily maximum≤ 410 #/100mLApr–Oct
E. colidaily maximum≤ 235 #/100mLApr–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]30-day average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 40 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 26 kg/dall year
BOD, carbonaceous [5 day, 20 C]30-day average≤ 26 kg/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 41 kg/dall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 41 kg/dall year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carb-5 day, 20 deg C, percent removalminimum % removal≥ 85 %all year
BOD, carb-5 day, 20 deg C, percent removalminimum≥ 85 %all year
Solids, suspended percent removalminimum % removal≥ 65 %all year
Solids, suspended percent removalminimum≥ 65 %all year
Outfall observation,visual, y/n responsevaluereport only (N=0;Y=1)all year
Outfall observation,visual, y/n responsevaluereport only (N=0;Y=1)all year

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/MN0059439 · MCP: https://passage-data.com/mcp