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MHC CM Utility Systems LLC

Sewerage Systems, Lake Elmo, Minnesota. NPDES permit MN0050636, in force until Sep 30, 2031. No reports in EPA's file for the last 12 months. Source: EPA ECHO, Oct 22, 2026.

Last report on file
None in EPA's file for the last 12 months; that may be EPA's gap, not the facility's

Limits in force (38)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly minimumreport only (mg/L)all yearD014
pHmonthly minimum≥ 6 SUall yearD014
pHmonthly maximum≤ 9 SUall yearD014
Solids, total suspendedmonthly average≤ 45 mg/Lall yearD014
Solids, total suspendedmaximum weekly average≤ 65 mg/Lall yearD014
Solids, total suspendedmonthly average≤ 114 kg/dall yearD014
Solids, total suspendedmaximum weekly average≤ 164 kg/dall yearD014
Nitrogen, total [as N]monthly averagereport only (mg/L)all yearD014
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all yearD014
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all yearD014
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all yearD014
Phosphorus, total [as P]monthly average≤ 1 mg/Lall yearD014
Phosphorus, total [as P]monthly averagereport only (kg/d)all yearD014
Phosphorus, total [as P]annual total≤ 166 kg/yrall yearD014
Sulfate, total [as SO4]monthly maximumreport only (mg/L)all yearD014
Coliform, fecal MPN + membrane ftl 44.5 Cmonthly geometric mean≤ 200 #/100mLApr–OctD014
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)Jan, Feb, Jul, AugD014
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)Mar, Apr, May, Jun, Sep, Oct, Nov, DecD014
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)Jan, Feb, Jul, AugD014
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)Mar, Apr, May, Jun, Sep, Oct, Nov, DecD014
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)Jan, Feb, Jul, AugD014
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)Mar, Apr, May, Jun, Sep, Oct, Nov, DecD014
Solids, total dissolvedmonthly averagereport only (mg/L)all yearD014
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearD014
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/Lall yearD014
BOD, carbonaceous [5 day, 20 C]monthly average≤ 63 kg/dall yearD014
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 101 kg/dall yearD014
Precipitation, total defined period/inmonthly totalreport only (in)all yearS015
pHmonthly minimumreport only (SU)all yearS015
pHmonthly maximumreport only (SU)all yearS015
Solids, total suspendedmonthly averagereport only (mg/L)all yearS015
Solids, total suspendedmonthly maximumreport only (mg/L)all yearS015
Nitrogen, total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecS015
Nitrogen, Kjeldahl, total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecS015
Nitrite + Nitrate total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecS015
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearS015
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all yearS015
BOD, carbonaceous [5 day, 20 C]monthly maximumreport only (mg/L)all yearS015

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/MN0050636 · MCP: https://passage-data.com/mcp