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Cayuga Municipal WWTP

Sewage treatment plant, Cayuga, Indiana. NPDES permit IN0060461, in force until Feb 28, 2031. Last 12 months: over a limit 4 times (last April 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (23 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
March 2026BOD, carbonaceous [5 day, 20 C], monthly average29.6 mg/L≤ 25 mg/L18%
April 2026BOD, carbonaceous [5 day, 20 C], monthly average25.5 lb/d≤ 22.1 lb/d15%
April 2026BOD, carbonaceous [5 day, 20 C], monthly average30.6 mg/L≤ 25 mg/L22%
April 2026E. coli, colony forming units [CFU], daily maximum866 CFU/100mL≤ 235 CFU/100mL269%

Limits in force (23)

ParameterStatisticLimitMonths
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 70 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 105 mg/Lall year
Solids, total suspendedmonthly average≤ 62 lb/dall year
Solids, total suspendedmaximum weekly average≤ 93 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 10.8 mg/Lall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 16.2 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 9.6 lb/dall year
Nitrogen, ammonia total [as N]maximum weekly average≤ 14.3 lb/dall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Chlorine, total residualmonthly average< .06 mg/LApr–Oct
Chlorine, total residualdaily maximum< .06 mg/LApr–Oct
Chlorine, total residualdaily minimum≥ .5 mg/LApr–Oct
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/Lall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 22.1 lb/dall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 35.4 lb/dall year
Flow, totalmonthly totalreport only (Mgal/mo)all year

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/IN0060461 · MCP: https://passage-data.com/mcp