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Mazeppa city of

Sewage treatment plant, Mazeppa, Minnesota. NPDES permit MN0046752, in force until May 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: outfall D006 form A1 monthly (23 values), outfall S007 form A1 monthly (11 values)
Renewal application due
Dec 3, 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 24 reports late

Limits in force (34)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly minimumreport only (mg/L)all yearD006
pHmonthly minimum≥ 6 SUall yearD006
pHmonthly maximum≤ 9 SUall yearD006
Solids, total suspendedmonthly average≤ 30 mg/Lall yearD006
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall yearD006
Solids, total suspendedmonthly average≤ 8.3 kg/dall yearD006
Solids, total suspendedmaximum weekly average≤ 12.4 kg/dall yearD006
Nitrogen, total [as N]monthly averagereport only (mg/L)Mar, SepD006
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Mar, SepD006
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, SepD006
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearD006
Phosphorus, total [as P]monthly averagereport only (kg/d)all yearD006
Coliform, fecal MPN + membrane ftl 44.5 Cmonthly geometric mean≤ 200 #/100mLApr–OctD006
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD006
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all yearD006
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD006
Chlorine, total residualdaily maximum≤ .038 mg/LApr–OctD006
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearD006
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/Lall yearD006
BOD, carbonaceous [5 day, 20 C]monthly average≤ 6.9 kg/dall yearD006
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 11 kg/dall yearD006
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all yearD006
Solids, suspended percent removalmonthly average minimum≥ 85 %all yearD006
Precipitation, total defined period/inmonthly totalreport only (in)all yearS007
pHmonthly minimumreport only (SU)all yearS007
pHmonthly maximumreport only (SU)all yearS007
Solids, total suspendedmonthly averagereport only (mg/L)all yearS007
Solids, total suspendedmonthly maximumreport only (mg/L)all yearS007
Nitrogen, total [as N]monthly averagereport only (mg/L)Mar, SepS007
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Mar, SepS007
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, SepS007
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearS007
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all yearS007
BOD, carbonaceous [5 day, 20 C]monthly maximumreport only (mg/L)all yearS007

New limits from Apr 1, 2028

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Phosphorus, total [as P], monthly average1 mg/Lnew5.05 mg/L (12 values)5.05×
Phosphorus, total [as P], monthly average0.32 kg/dnew0.93 kg/d (11 values)2.91×

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/MN0046752 · MCP: https://passage-data.com/mcp