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Town Council of Etna Green

Sewage treatment plant, Etna Green, Indiana. NPDES permit IN0040002, in force until Mar 31, 2031. Last 12 months: over a limit 4 times (last June 2026), 2 required values missing, 2 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (23 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
6 values over a limit, 2 required values missing, 3 of 12 reports late

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

Period endingParameterReportedLimitOver by
November 2025Oxygen, dissolved [DO], daily average minimum4.5 mg/L≥ 5 mg/L10%
April 2026Chlorine, total residual, daily maximum.06 mg/L< .06 mg/L0%
May 2026Oxygen, dissolved [DO], daily average minimum3.6 mg/L≥ 5 mg/L28%
June 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average36.15 mg/L≤ 27 mg/L34%

Limits in force (36)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily average minimum≥ 5 mg/LMay–Nov
Oxygen, dissolved [DO]daily average minimum≥ 4 mg/LJan, Feb, Mar, Apr, Dec
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 22 mg/LMay–Nov
Solids, total suspendedmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Dec
Solids, total suspendedmaximum weekly average≤ 33 mg/LMay–Nov
Solids, total suspendedmaximum weekly average≤ 45 mg/LJan, Feb, Mar, Apr, Dec
Solids, total suspendedmonthly average≤ 16.5 lb/dMay–Nov
Solids, total suspendedmonthly average≤ 22.5 lb/dJan, Feb, Mar, Apr, Dec
Solids, total suspendedmaximum weekly average≤ 24.8 lb/dMay–Nov
Solids, total suspendedmaximum weekly average≤ 33.8 lb/dJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]monthly average≤ 2.3 mg/LMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ 3.6 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 3.5 mg/LMay–Nov
Nitrogen, ammonia total [as N]maximum weekly average≤ 5.4 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.73 lb/dMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ 2.7 lb/dJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 2.63 lb/dMay–Nov
Nitrogen, ammonia total [as N]maximum weekly average≤ 4.06 lb/dJan, Feb, Mar, Apr, Dec
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/LJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 18 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≤ 27 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≤ 13.5 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≤ 20.3 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/IN0040002 · MCP: https://passage-data.com/mcp