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Forrest, Village of

Sewage treatment plant, Forrest, Illinois. NPDES permit IL0028819, in force until Dec 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form 0 monthly (20 values), outfall A01 form 0 monthly (20 values), outfall INF form L monthly (4 values)
Renewal application due
Jul 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 36 reports late

Limits in force (48)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly average minimum≥ 6 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]minimum weekly average≥ 6.25 mg/LMar–Jul001
Oxygen, dissolved [DO]minimum weekly average≥ 4.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMar–Jul001
Oxygen, dissolved [DO]daily minimum≥ 4 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 220 lb/dall year001
Solids, total suspendedweekly average≤ 330 lb/dall year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualdaily maximum≤ .05 mg/Lall year001
Chlorine, total residualmonthly average≤ .75 mg/Lall year001
Coliform, fecal generaldaily maximumreport only (#/100mL)May–Oct001
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 183 lb/dall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 294 lb/dall year001
Oxygen, dissolved [DO]monthly average minimum≥ 6 mg/LJan, Feb, Aug, Sep, Oct, Nov, DecA01
Oxygen, dissolved [DO]minimum weekly average≥ 4.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, DecA01
Oxygen, dissolved [DO]minimum weekly average≥ 6.25 mg/LMar–JulA01
Oxygen, dissolved [DO]daily minimum≥ 4 mg/LJan, Feb, Aug, Sep, Oct, Nov, DecA01
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMar–JulA01
pHminimum≥ 6 SUall yearA01
pHmaximum≤ 9 SUall yearA01
Solids, total suspendedmonthly average≤ 30 mg/Lall yearA01
Solids, total suspendedweekly average≤ 45 mg/Lall yearA01
Solids, total suspendedmonthly average≤ 220 lb/dall yearA01
Solids, total suspendedweekly average≤ 330 lb/dall yearA01
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all yearA01
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearA01
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearA01
Chlorine, total residualdaily maximum≤ .05 mg/Lall yearA01
Chlorine, total residualmonthly average≤ .75 mg/Lall yearA01
Coliform, fecal generaldaily maximumreport only (#/100mL)May–OctA01
Coliform, fecal generaldaily maximum≤ 400 #/100mLall yearA01
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearA01
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall yearA01
BOD, carbonaceous [5 day, 20 C]monthly average≤ 183 lb/dall yearA01
BOD, carbonaceous [5 day, 20 C]weekly average≤ 294 lb/dall yearA01
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearINF
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearINF
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearINF

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/IL0028819 · MCP: https://passage-data.com/mcp