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Industrial or other facility, Maplewood, Minnesota. NPDES permit MN0045829, in force until Jan 31, 2031. Last 12 months: no values over a limit, 5 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: outfall D007 form A1 monthly (19 values), outfall D008 form A1 quarterly, outfall D009 form A1 quarterly
Last report on file
August 2026

Limits in force (30)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigradedaily maximumreport only (deg C)all yearD007
pHmonthly minimum≥ 6 SUall yearD007
pHmonthly maximum≤ 9 SUall yearD007
Solids, total suspendedmonthly average≤ 30 mg/Lall yearD007
Solids, total suspendeddaily maximum≤ 45 mg/Lall yearD007
Solids, total suspendeddaily maximum≤ 340 kg/dall yearD007
Nitrogen, total [as N]monthly averagereport only (mg/L)Mar, SepD007
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Mar, SepD007
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, SepD007
Phosphorus, total [as P]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecD007
Sulfate, total [as SO4]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecD007
Iron, total [as Fe]daily maximum≤ 1.36 mg/Lall yearD007
Iron, total [as Fe]daily maximum≤ 10.3 kg/dall yearD007
Aluminum, total [as Al]daily maximum≤ 1.072 mg/Lall yearD007
Aluminum, total [as Al]daily maximum≤ 8.1 kg/dall yearD007
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD007
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearD007
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD007
Solids, total dissolvedmonthly averagereport only (mg/L)Mar, SepD007
pHquarterly minimumreport only (SU)all yearD008
pHquarterly maximumreport only (SU)all yearD008
Solids, total suspendedquarterly maximumreport only (mg/L)all yearD008
Flow, in conduit or thru treatment plantquarterly averagereport only (MGD)all yearD008
Flow, in conduit or thru treatment plantquarterly totalreport only (Mgal/mo)all yearD008
pHquarterly minimumreport only (SU)all yearD009
pHquarterly maximumreport only (SU)all yearD009
Solids, total suspendedquarterly maximumreport only (mg/L)all yearD009
Phosphorus, total [as P]quarterly averagereport only (mg/L)all yearD009
Flow, in conduit or thru treatment plantquarterly averagereport only (MGD)all yearD009
Flow, in conduit or thru treatment plantquarterly totalreport only (Mgal/mo)all yearD009

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/MN0045829 · MCP: https://passage-data.com/mcp