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Americana Estates of Casco, L.L.C. c/o York Management

Mobile Home Site Operators, Casco, Michigan. NPDES permit MI0027073 expired Oct 1, 2024; its limits still apply. Last 12 months: over a limit 28 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 21 days after each period: outfall 001 form A monthly (24 values), outfall SLD form L yearly (42 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
20 values over a limit, 0 required values missing, 0 of 13 reports late

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

All 28 values over a limit
Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], monthly average1.2≤ .5 lb/d140%
October 2025Nitrogen, ammonia total [as N], monthly average1.2≤ .5 mg/L140%
November 2025Nitrogen, ammonia total [as N], monthly average1.5≤ .5 lb/d200%
November 2025Nitrogen, ammonia total [as N], monthly average1.5≤ .5 mg/L200%
December 2025Nitrogen, ammonia total [as N], monthly average1.4≤ .5 lb/d180%
December 2025Nitrogen, ammonia total [as N], monthly average1.4≤ .5 mg/L180%
January 2026Nitrogen, ammonia total [as N], monthly average2≤ .5 lb/d300%
January 2026Nitrogen, ammonia total [as N], monthly average2≤ .5 mg/L300%
February 2026Nitrogen, ammonia total [as N], monthly average1.7≤ .5 lb/d240%
February 2026Nitrogen, ammonia total [as N], monthly average1.7≤ .5 mg/L240%
March 2026BOD, carbonaceous [5 day, 20 C], monthly average5≤ 4 lb/d25%
March 2026BOD, carbonaceous [5 day, 20 C], monthly average5≤ 4 mg/L25%
March 2026Nitrogen, ammonia total [as N], 7-day average7.4≤ 2 lb/d270%
March 2026Nitrogen, ammonia total [as N], daily maximum7.4≤ 2 mg/L270%
March 2026Nitrogen, ammonia total [as N], monthly average7.4≤ .5 lb/d1380%
March 2026Nitrogen, ammonia total [as N], monthly average7.4≤ .5 mg/L1380%
April 2026Nitrogen, ammonia total [as N], 7-day average4.8≤ 2 lb/d140%
April 2026Nitrogen, ammonia total [as N], daily maximum4.8≤ 2 mg/L140%
April 2026Nitrogen, ammonia total [as N], monthly average4.8≤ .5 lb/d860%
April 2026Nitrogen, ammonia total [as N], monthly average4.8≤ .5 mg/L860%
June 2026Nitrogen, ammonia total [as N], monthly average1.5≤ .5 lb/d200%
June 2026Nitrogen, ammonia total [as N], monthly average1.5≤ .5 mg/L200%
July 2026Nitrogen, ammonia total [as N], monthly average1.6≤ .5 lb/d220%
July 2026Nitrogen, ammonia total [as N], monthly average1.6≤ .5 mg/L220%
August 2026Nitrogen, ammonia total [as N], 7-day average3≤ 2 lb/d50%
August 2026Nitrogen, ammonia total [as N], daily maximum3≤ 2 mg/L50%
August 2026Nitrogen, ammonia total [as N], monthly average3≤ .5 lb/d500%
August 2026Nitrogen, ammonia total [as N], monthly average3≤ .5 mg/L500%

Limits in force (66)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year001
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 10 mg/Lall year001
Solids, total suspended7-day average≤ 15 mg/Lall year001
Solids, total suspendedmonthly average≤ 10 lb/dall year001
Solids, total suspended7-day average≤ 15 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ .5 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 2 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ .5 lb/dall year001
Nitrogen, ammonia total [as N]7-day average≤ 2 lb/dall year001
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly average≤ 1 lb/dall year001
Phosphorus, total [as P]daily maximumreport only (lb/d)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualdaily maximum≤ 38 ug/Lall year001
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year001
Coliform, fecal general7-day geometric mean≤ 400 #/100mLall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 4 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 4 lb/dall year001
BOD, carbonaceous [5 day, 20 C]7-day average≤ 10 lb/dall year001
Solids, totalmonthly minimumreport only (%)all yearSLD
Solids, totalmonthly averagereport only (%)all yearSLD
Solids, totalmonthly maximumreport only (%)all yearSLD
Arsenic, dry weightmonthly minimumreport only (mg/kg)all yearSLD
Arsenic, dry weightmonthly averagereport only (mg/kg)all yearSLD
Arsenic, dry weightmonthly maximum≤ 75 mg/kgall yearSLD
Selenium, dry weightmonthly minimumreport only (mg/kg)all yearSLD
Selenium, dry weightmonthly averagereport only (mg/kg)all yearSLD
Selenium, dry weightmonthly maximum≤ 100 mg/kgall yearSLD
Copper, dry weightmonthly minimumreport only (mg/kg)all yearSLD
Copper, dry weightmonthly averagereport only (mg/kg)all yearSLD
Copper, dry weightmonthly maximum≤ 4300 mg/kgall yearSLD
Cadmium, dry weightmonthly minimumreport only (mg/kg)all yearSLD
Cadmium, dry weightmonthly averagereport only (mg/kg)all yearSLD
Cadmium, dry weightmonthly maximum≤ 85 mg/kgall yearSLD
Nitrogen, total Kjeldahlmonthly minimumreport only (mg/kg)all yearSLD
Nitrogen, total Kjeldahlmonthly averagereport only (mg/kg)all yearSLD
Nitrogen, total Kjeldahlmonthly maximumreport only (mg/kg)all yearSLD
Molybdenum, sludge, total, dry weight [as Mo]monthly minimumreport only (mg/kg)all yearSLD
Molybdenum, sludge, total, dry weight [as Mo]monthly averagereport only (mg/kg)all yearSLD
Molybdenum, sludge, total, dry weight [as Mo]monthly maximum≤ 75 mg/kgall yearSLD
Zinc, sludge, total, dry weight [as Zn]monthly minimumreport only (mg/kg)all yearSLD
Zinc, sludge, total, dry weight [as Zn]monthly averagereport only (mg/kg)all yearSLD
Zinc, sludge, total, dry weight [as Zn]monthly maximum≤ 7500 mg/kgall yearSLD
Lead, sludge, total, dry weight [as Pb]monthly minimumreport only (mg/kg)all yearSLD
Lead, sludge, total, dry weight [as Pb]monthly averagereport only (mg/kg)all yearSLD
Lead, sludge, total, dry weight [as Pb]monthly maximum≤ 840 mg/kgall yearSLD
Nickel, sludge, total, dry weight [as Ni]monthly minimumreport only (mg/kg)all yearSLD
Nickel, sludge, total, dry weight [as Ni]monthly averagereport only (mg/kg)all yearSLD
Nickel, sludge, total, dry weight [as Ni]monthly maximum≤ 420 mg/kgall yearSLD
Nitrogen, sludge, total, dry weight [as N]monthly minimumreport only (mg/kg)all yearSLD
Nitrogen, sludge, total, dry weight [as N]monthly averagereport only (mg/kg)all yearSLD
Nitrogen, sludge, total, dry weight [as N]monthly maximumreport only (mg/kg)all yearSLD
Mercury, sludge, total, dry weight [as Hg]monthly minimumreport only (mg/kg)all yearSLD
Mercury, sludge, total, dry weight [as Hg]monthly averagereport only (mg/kg)all yearSLD
Mercury, sludge, total, dry weight [as Hg]monthly maximum≤ 57 mg/kgall yearSLD
Potassium, sludge, total, dry weight [as K]monthly minimumreport only (mg/kg)all yearSLD
Potassium, sludge, total, dry weight [as K]monthly averagereport only (mg/kg)all yearSLD
Potassium, sludge, total, dry weight [as K]monthly maximumreport only (mg/kg)all yearSLD
Phosphorus, sludge, total, dry weight [as P]monthly minimumreport only (mg/kg)all yearSLD
Phosphorus, sludge, total, dry weight [as P]monthly averagereport only (mg/kg)all yearSLD
Phosphorus, sludge, total, dry weight [as P]monthly maximumreport only (mg/kg)all yearSLD

How strict are these limits?

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

Same industry: the 18 Real Estate permits in Michigan.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MI0027073 · MCP: https://passage-data.com/mcp