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Minneapolis city of

Water Supply, Fridley, Minnesota. NPDES permit MN0003247 expired Jun 30, 2024; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: outfall D004 form A1 monthly (18 values), outfall D006 form A1 monthly (3 values), outfall D015 form A1 monthly (24 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 36 reports late

Limits in force (45)

ParameterStatisticLimitMonthsOutfall
pHmonthly minimum≥ 6 SUall yearD004
pHmonthly maximum≤ 9 SUall yearD004
Solids, total suspendeddaily maximum≤ 30 mg/Lall yearD004
Solids, total suspendeddaily maximum≤ 40 kg/dall yearD004
Nitrogen, total [as N]monthly averagereport only (mg/L)Mar, SepD004
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Mar, SepD004
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, SepD004
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearD004
Phosphorus, total [as P]monthly averagereport only (kg/d)all yearD004
Iron, total [as Fe]daily maximum≤ 2.7 mg/Lall yearD004
Iron, total [as Fe]daily maximum≤ 3.6 kg/dall yearD004
Manganese, total [as Mn]daily maximum≤ 9.3 mg/Lall yearD004
Manganese, total [as Mn]daily maximum≤ 12.3 kg/dall yearD004
Aluminum, total [as Al]daily maximum≤ 2.1 mg/Lall yearD004
Aluminum, total [as Al]daily maximum≤ 2.8 kg/dall yearD004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD004
Flow, in conduit or thru treatment plantmonthly maximum≤ 1.2 MGDall yearD004
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD004
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
Specific conductancemonthly maximumreport only (umho/cm)Mar, SepD015
pHmonthly minimum≥ 6 SUall yearD015
pHmonthly maximum≤ 9 SUall yearD015
Bicarbonate ion- [as HCO3]monthly maximumreport only (mg/L)Mar, SepD015
Solids, total suspendeddaily maximum≤ 30 mg/Lall yearD015
Solids, total suspendeddaily maximum≤ 108 kg/dall yearD015
Nitrogen, total [as N]monthly averagereport only (mg/L)Mar, SepD015
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Mar, SepD015
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, SepD015
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearD015
Phosphorus, total [as P]monthly averagereport only (kg/d)all yearD015
Calcium, total [as Ca]monthly maximumreport only (mg/L)Mar, SepD015
Magnesium, total [as Mg]monthly maximumreport only (mg/L)Mar, SepD015
Sodium, total [as Na]monthly maximumreport only (mg/L)Mar, SepD015
Potassium, total [as K]monthly maximumreport only (mg/L)Mar, SepD015
Chloride [as Cl]monthly maximumreport only (mg/L)Mar, SepD015
Sulfate, total [as SO4]monthly maximumreport only (mg/L)Mar, SepD015
Copper, total [as Cu]monthly maximumreport only (mg/L)Mar, SepD015
Zinc, total [as Zn]monthly maximumreport only (mg/L)Mar, SepD015
Hardness, Ca Mg Calculated [mg/L as CaCO3]monthly maximumreport only (mg/L)Mar, SepD015
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD015
Flow, in conduit or thru treatment plantmonthly maximum≤ .96 MGDall yearD015
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD015
Solids, total dissolvedmonthly maximumreport only (mg/L)Mar, SepD015

How strict are these limits?

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

Same industry: the 8 Water Supply permits in Minnesota.

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/MN0003247 · MCP: https://passage-data.com/mcp