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Sacred Heart city of

Sewage treatment plant, Sacred Heart, Minnesota. NPDES permit MN0024708, in force until May 31, 2027. Last 12 months: over a limit 21 times (last August 2026), 11 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: outfall D012 form A1 monthly (34 values), outfall D012 form A2 monthly (2 values), outfall S013 form A1 monthly (11 values)
Renewal application due
Dec 2, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
16 values over a limit, 0 required values missing, 0 of 36 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

All 21 values over a limit
Period endingParameterReportedLimitOver by
October 2025Solids, suspended percent removal, monthly average minimum73≥ 85 %80%
November 2025Solids, suspended percent removal, monthly average minimum77≥ 85 %53%
December 2025Solids, suspended percent removal, monthly average minimum73≥ 85 %80%
January 2026Solids, suspended percent removal, monthly average minimum79≥ 85 %40%
March 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum79≥ 85 %40%
April 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum81≥ 85 %27%
April 2026Solids, suspended percent removal, monthly average minimum80≥ 85 %33%
May 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum71≥ 85 %93%
May 2026Solids, suspended percent removal, monthly average minimum63≥ 85 %147%
June 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum2.5≥ 85 %550%
June 2026BOD, carbonaceous [5 day, 20 C], monthly average69≤ 25 mg/L176%
June 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average230≤ 40 mg/L475%
June 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average38.3≤ 35.8 kg/d7%
June 2026Solids, suspended percent removal, monthly average minimum56≥ 85 %193%
July 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum66≥ 85 %127%
July 2026BOD, carbonaceous [5 day, 20 C], monthly average34≤ 25 mg/L36%
July 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average66≤ 40 mg/L65%
July 2026Solids, suspended percent removal, monthly average minimum83≥ 85 %13%
August 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum60≥ 85 %167%
August 2026BOD, carbonaceous [5 day, 20 C], monthly average31≤ 25 mg/L24%
August 2026Solids, suspended percent removal, monthly average minimum77≥ 85 %53%

Limits in force (52)

ParameterStatisticLimitMonthsOutfall
Specific conductancemonthly maximumreport only (umho/cm)all yearD012
Oxygen, dissolved [DO]monthly minimumreport only (mg/L)all yearD012
pHmonthly minimum≥ 6 SUall yearD012
pHmonthly maximum≤ 9 SUall yearD012
Bicarbonate ion- [as HCO3]monthly maximumreport only (mg/L)all yearD012
Solids, total suspendedmonthly average≤ 30 mg/Lall yearD012
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall yearD012
Solids, total suspendedmonthly maximumreport only (mg/L)JulD012
Solids, total suspendedmonthly average≤ 26.9 kg/dall yearD012
Solids, total suspendedmaximum weekly average≤ 40.3 kg/dall yearD012
Nitrogen, total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecD012
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Mar, SepD012
Nitrogen, Kjeldahl, total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecD012
Nitrite + Nitrate total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecD012
Phosphorus, total [as P]monthly averagereport only (mg/L)Jun–SepD012
Phosphorus, total [as P]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, May, Oct, Nov, DecD012
Phosphorus, total [as P]monthly average≤ 1.2 kg/dJun–SepD012
Phosphorus, total [as P]monthly averagereport only (kg/d)Jan, Feb, Mar, Apr, May, Oct, Nov, DecD012
Phosphorus, total [as P]annual total≤ 327 kg/yrall yearD012
Calcium, total [as Ca]monthly maximumreport only (mg/L)all yearD012
Magnesium, total [as Mg]monthly maximumreport only (mg/L)all yearD012
Sodium, total [as Na]monthly maximumreport only (mg/L)all yearD012
Potassium, total [as K]monthly maximumreport only (mg/L)all yearD012
Chloride [as Cl]monthly averagereport only (mg/L)all yearD012
Chloride [as Cl]monthly maximumreport only (mg/L)all yearD012
Sulfate, total [as SO4]monthly maximumreport only (mg/L)all yearD012
Hardness, Ca Mg Calculated [mg/L as CaCO3]monthly maximumreport only (mg/L)all yearD012
Coliform, fecal MPN + membrane ftl 44.5 Cmonthly geometric mean≤ 200 #/100mLMay–OctD012
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD012
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all yearD012
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD012
Chlorine, total residualdaily maximum≤ .038 mg/LMay–OctD012
Solids, total dissolvedmonthly maximumreport only (mg/L)all yearD012
Mercury, dissolved [as Hg]monthly maximumreport only (ng/L)JulD012
Mercury, total [as Hg]monthly maximumreport only (ng/L)JulD012
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearD012
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/Lall yearD012
BOD, carbonaceous [5 day, 20 C]monthly average≤ 22.4 kg/dall yearD012
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 35.8 kg/dall yearD012
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all yearD012
Solids, suspended percent removalmonthly average minimum≥ 85 %all yearD012
Precipitation, total defined period/inmonthly totalreport only (in)all yearS013
pHmonthly minimumreport only (SU)all yearS013
pHmonthly maximumreport only (SU)all yearS013
Solids, total suspendedmonthly averagereport only (mg/L)all yearS013
Solids, total suspendedmonthly maximumreport only (mg/L)all yearS013
Nitrogen, total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecS013
Nitrogen, Kjeldahl, total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecS013
Nitrite + Nitrate total [as N]quarterly averagereport only (mg/L)Mar, Jun, Sep, DecS013
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearS013
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all yearS013
BOD, carbonaceous [5 day, 20 C]monthly maximumreport only (mg/L)all yearS013

New limits from Jan 1, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Chloride [as Cl], monthly average230 mg/L (Jan, Mar, May, Jul, Sep, Nov)new821 mg/L (5 values)3.57×
Chloride [as Cl], daily maximum377 mg/L (Jan, Mar, May, Jul, Sep, Nov)new——

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/MN0024708 · MCP: https://passage-data.com/mcp