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Michigantown WWTP

Sewage treatment plant, Michigantown, Indiana. NPDES permit IN0040355, in force until Jun 30, 2028. Last 12 months: over a limit 7 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (25 values)
Renewal application due
Jan 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
5 values over a limit, 0 required values missing, 1 of 12 reports late

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

Period endingParameterReportedLimitOver by
December 2025pH, daily maximum9.1 SU≤ 9 SU—
April 2026Chlorine, total residual, daily maximum.18 mg/L< .06 mg/L200%
May 2026Chlorine, total residual, daily minimum.13 mg/L≥ .5 mg/L74%
July 2026Chlorine, total residual, daily minimum.34 mg/L≥ .5 mg/L32%
August 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average21.59 lb/d≤ 17.3 lb/d25%
August 2026Nitrogen, ammonia total [as N], maximum weekly average3.18 lb/d≤ 1.8 lb/d77%
August 2026Solids, total suspended, maximum weekly average37.59 lb/d≤ 20.3 lb/d85%

Limits in force (42)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily average minimum≥ 6 mg/LMay–Nov
Oxygen, dissolved [DO]daily average minimum≥ 5 mg/LJan, Feb, Mar, Apr, Dec
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Dec
Solids, total suspendedmonthly average≤ 18 mg/LMay–Nov
Solids, total suspendedmaximum weekly average≤ 45 mg/LJan, Feb, Mar, Apr, Dec
Solids, total suspendedmaximum weekly average≤ 27 mg/LMay–Nov
Solids, total suspendedmonthly average≤ 22.5 lb/dJan, Feb, Mar, Apr, Dec
Solids, total suspendedmonthly average≤ 13.5 lb/dMay–Nov
Solids, total suspendedmaximum weekly average≤ 33.8 lb/dJan, Feb, Mar, Apr, Dec
Solids, total suspendedmaximum weekly average≤ 20.3 lb/dMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ 1.6 mg/LMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ 3.2 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 2.4 mg/LMay–Nov
Nitrogen, ammonia total [as N]maximum weekly average≤ 4.8 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.2 lb/dMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ 2.4 lb/dJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 1.8 lb/dMay–Nov
Nitrogen, ammonia total [as N]maximum weekly average≤ 3.6 lb/dJan, Feb, Mar, Apr, Dec
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (lb/d)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Chlorine, total residualmonthly average< .06 mg/LApr–Oct
Chlorine, total residualmonthly average< .06 mg/LJan, Feb, Mar, Nov, Dec
Chlorine, total residualdaily maximum< .06 mg/LApr–Oct
Chlorine, total residualdaily maximum< .06 mg/LJan, Feb, Mar, Nov, Dec
Chlorine, total residualdaily minimum≥ .5 mg/LJan, Feb, Mar, Nov, Dec
Chlorine, total residualdaily minimum≥ .5 mg/LApr–Oct
Chlorine, total residualdaily maximumreport only (mg/L)Jan, Feb, Mar, Nov, Dec
Chlorine, total residualdaily maximumreport only (mg/L)Apr–Oct
E. coli, colony forming units [CFU]monthly geometric mean≤ 125 CFU/100mLApr–Oct
E. coli, colony forming units [CFU]daily maximum≤ 235 CFU/100mLApr–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/LMay–Nov
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/LJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 23 mg/LMay–Nov
BOD, carbonaceous [5 day, 20 C]monthly average≤ 18.8 lb/dJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 11.3 lb/dMay–Nov
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 30 lb/dJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 17.3 lb/dMay–Nov
Flow, totalmonthly totalreport only (Mgal/mo)all year

How strict are these limits?

Cited limits by parameter: Indiana'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/IN0040355 · MCP: https://passage-data.com/mcp