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Sun Communities, Incorporated

Sanitary Services, Perry, Michigan. NPDES permit MI0025054 expired Oct 1, 2018; its limits still apply. Last 12 months: over a limit 3 times (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Last report on file
May 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 18 reports late

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

Period endingParameterReportedLimitOver by
November 2025Phosphorus, total [as P], monthly average1.8≤ 1.5 mg/L20%
March 2026Coliform, fecal general, 7-day geometric mean5800≤ 400 #/100mL1350%
March 2026Coliform, fecal general, monthly geometric mean2024≤ 200 #/100mL912%

Limits in force (48)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMar, Apr, May, Oct, Nov, Dec001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LMar, Apr, May, Oct, Nov, Dec001
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/LMar, Apr, May, Oct, Nov, Dec001
pHdaily minimum≥ 6.5 SUMar, Apr, May, Oct, Nov, Dec001
pHdaily maximum≤ 10 SUMar, Apr, May, Oct, Nov, Dec001
Solids, total suspendedmonthly average≤ 70 mg/LMar–May001
Solids, total suspendedmonthly average≤ 40 mg/LOct–Dec001
Solids, total suspended7-day average≤ 100 mg/LMar–May001
Solids, total suspended7-day average≤ 45 mg/LOct–Dec001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Mar, Apr, May, Oct, Nov, Dec001
Phosphorus, total [as P]monthly average≤ 1.5 mg/LMar, Apr, May, Oct, Nov, Dec001
Phosphorus, total [as P]monthly geometric mean≤ 260 lb/yrMar, Apr, May, Oct, Nov, Dec001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)Mar, Apr, May, Oct, Nov, Dec001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)Mar, Apr, May, Oct, Nov, Dec001
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLMar, Apr, May, Oct, Nov, Dec001
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMar, Apr, May, Oct, Nov, Dec001
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMar, Apr, May, Oct, Nov, Dec002
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LMar, Apr, May, Oct, Nov, Dec002
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/LMar, Apr, May, Oct, Nov, Dec002
pHdaily minimum≥ 6.5 SUMar, Apr, May, Oct, Nov, Dec002
pHdaily maximum≤ 10 SUMar, Apr, May, Oct, Nov, Dec002
Solids, total suspendedmonthly average≤ 70 mg/LMar–May002
Solids, total suspendedmonthly average≤ 40 mg/LOct–Dec002
Solids, total suspended7-day average≤ 100 mg/LMar–May002
Solids, total suspended7-day average≤ 45 mg/LOct–Dec002
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Mar, Apr, May, Oct, Nov, Dec002
Phosphorus, total [as P]monthly average≤ 1.5 mg/LMar, Apr, May, Oct, Nov, Dec002
Phosphorus, total [as P]monthly geometric mean≤ 260 lb/yrMar, Apr, May, Oct, Nov, Dec002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)Mar, Apr, May, Oct, Nov, Dec002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)Mar, Apr, May, Oct, Nov, Dec002
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLMar, Apr, May, Oct, Nov, Dec002
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMar, Apr, May, Oct, Nov, Dec002
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMar, Apr, May, Oct, Nov, Dec003
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LMar, Apr, May, Oct, Nov, Dec003
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/LMar, Apr, May, Oct, Nov, Dec003
pHdaily minimum≥ 6.5 SUMar, Apr, May, Oct, Nov, Dec003
pHdaily maximum≤ 10 SUMar, Apr, May, Oct, Nov, Dec003
Solids, total suspendedmonthly average≤ 70 mg/LMar–May003
Solids, total suspendedmonthly average≤ 40 mg/LOct–Dec003
Solids, total suspended7-day average≤ 100 mg/LMar–May003
Solids, total suspended7-day average≤ 45 mg/LOct–Dec003
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Mar, Apr, May, Oct, Nov, Dec003
Phosphorus, total [as P]monthly average≤ 1.5 mg/LMar, Apr, May, Oct, Nov, Dec003
Phosphorus, total [as P]monthly geometric mean≤ 260 lb/yrMar, Apr, May, Oct, Nov, Dec003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)Mar, Apr, May, Oct, Nov, Dec003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)Mar, Apr, May, Oct, Nov, Dec003
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLMar, Apr, May, Oct, Nov, Dec003
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMar, Apr, May, Oct, Nov, Dec003

How strict are these limits?

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

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