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Samuel Johnson

Industrial or other facility, Decatur, Illinois. NPDES permit IL0080263, in force until Feb 28, 2029. Last 12 months: over a limit 6 times (last February 2026), 1 required value missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form 0 yearly
Last report on file
February 2026
Oct 2024 – Sep 2025
0 values over a limit, 9 required values missing, 1 of 1 report late

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

Period endingParameterReportedLimitOver by
February 2026BOD, 5-day, 20 deg. C, annual average28≤ 10 mg/L180%
February 2026BOD, 5-day, 20 deg. C, daily maximum28≤ 20 mg/L40%
February 2026Chlorine, total residual, daily maximum< .05≤ .038 mg/L32%
February 2026Coliform, fecal general, daily maximum15600≤ 400 #/100mL3800%
February 2026Solids, total suspended, annual average29≤ 12 mg/L142%
February 2026Solids, total suspended, daily maximum29≤ 24 mg/L21%

Limits in force (9)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cannual average≤ 10 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 20 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedannual average≤ 12 mg/Lall year
Solids, total suspendeddaily maximum≤ 24 mg/Lall year
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year
Chlorine, total residualdaily maximum≤ .038 mg/Lall year
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year

How strict are these limits?

Cited limits by parameter: Illinois'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/IL0080263 · MCP: https://passage-data.com/mcp