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Cambridge city of

Sewage treatment plant, major discharger, Cambridge, Minnesota. NPDES permit MN0020362, in force until Mar 31, 2031. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: outfall D038 form A1 monthly (29 values), outfall D038 form A2 monthly (1 value), outfall D038 form A3 monthly (1 value), outfall S039 form A1 monthly (11 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 38 reports late

Limits in force (43)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly minimumreport only (mg/L)all yearD038
pHmonthly minimum≥ 6 SUall yearD038
pHmonthly maximum≤ 9 SUall yearD038
Solids, total suspendedmonthly average≤ 30 mg/Lall yearD038
Solids, total suspendedmonthly maximumreport only (mg/L)May, SepD038
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall yearD038
Solids, total suspendedmonthly average≤ 73.1 kg/dall yearD038
Solids, total suspendedmaximum weekly average≤ 109.7 kg/dall yearD038
Nitrogen, total [as N]monthly averagereport only (mg/L)all yearD038
Nitrogen, ammonia total [as N]monthly average≤ 14 mg/LJun–SepD038
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, May, Oct, Nov, DecD038
Nitrogen, ammonia total [as N]monthly average≤ 102 kg/dJun–SepD038
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all yearD038
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all yearD038
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearD038
Phosphorus, total [as P]monthly averagereport only (kg/d)all yearD038
Phosphorus, total [as P]annual total≤ 2122 kg/yrall yearD038
Sulfate, total [as SO4]quarterly maximumreport only (mg/L)Mar, Jun, Sep, DecD038
Coliform, fecal MPN + membrane ftl 44.5 Cmonthly geometric mean≤ 200 #/100mLApr–OctD038
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD038
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all yearD038
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD038
Chlorine, total residualdaily maximum≤ .038 mg/Lall yearD038
Solids, total dissolvedmonthly averagereport only (mg/L)Mar, SepD038
Mercury, dissolved [as Hg]monthly maximumreport only (ng/L)May, SepD038
Mercury, total [as Hg]monthly maximumreport only (ng/L)May, SepD038
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearD038
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/Lall yearD038
BOD, carbonaceous [5 day, 20 C]monthly average≤ 60.9 kg/dall yearD038
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 97.5 kg/dall yearD038
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all yearD038
Solids, suspended percent removalmonthly average minimum≥ 85 %all yearD038
Precipitation, total defined period/inmonthly totalreport only (in)all yearS039
pHmonthly minimumreport only (SU)all yearS039
pHmonthly maximumreport only (SU)all yearS039
Solids, total suspendedmonthly averagereport only (mg/L)all yearS039
Solids, total suspendedmonthly maximumreport only (mg/L)all yearS039
Nitrogen, total [as N]monthly averagereport only (mg/L)all yearS039
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all yearS039
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all yearS039
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearS039
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all yearS039
BOD, carbonaceous [5 day, 20 C]monthly maximumreport only (mg/L)all yearS039

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/MN0020362 · MCP: https://passage-data.com/mcp