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White Earth Reservation

Sewerage Systems, Mahnomen, Minnesota. NPDES permit MN0059404, in force until Feb 15, 2029. Last 12 months: no values over a limit, 218 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 (16 values), form A quarterly
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 118 required values missing, 8 of 16 reports late

Limits in force (70)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year
Oxygen, dissolved [DO]daily 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 suspendedmonthly average≤ 45 mg/Lall year
Solids, total suspendedweekly average≤ 65 mg/Lall year
Solids, total suspendedweekly average≤ 65 mg/Lall year
Solids, total suspendedmonthly average≤ 26 kg/dall year
Solids, total suspendedmonthly average≤ 26 kg/dall year
Solids, total suspendedweekly average≤ 37 kg/dall year
Solids, total suspendedweekly average≤ 37 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)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Jun, Dec
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Jun, Dec
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)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]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Sulfate, total [as SO4]monthly averagereport only (mg/L)Jun, Dec
Sulfate, total [as SO4]monthly averagereport only (mg/L)Jun, Dec
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 plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport 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 plantmonthly totalreport only (Mgal/mo)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
E. colimonthly average≤ 126 #/100mLApr–Oct
E. colimonthly average≤ 126 #/100mLApr–Oct
E. colidaily maximum≤ 410 #/100mLApr–Oct
E. colidaily maximum≤ 410 #/100mLApr–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]7-day 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≤ 14 kg/dall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 14 kg/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 23 kg/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 23 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 % removal≥ 85 %all year
Solids, suspended percent removalminimum % removal≥ 65 %all year
Solids, suspended percent removalminimum % removal≥ 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/MN0059404 · MCP: https://passage-data.com/mcp