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Gilberts, Village of

Sewage treatment plant, major discharger, Gilberts, Illinois. NPDES permit IL0068764, in force until Feb 29, 2028. Last 12 months: over a limit 3 times (last May 2026), 8 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form 0 monthly (70 values), outfall INF form L monthly (4 values), outfall 001 form S twice a year
Renewal application due
Sep 2, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 6 of 26 reports late

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

Period endingParameterReportedLimitOver by
December 2025Solids, total suspended, daily maximum34.6 mg/L≤ 24 mg/L44%
April 2026Nitrogen, ammonia total [as N], daily maximum3.17 mg/L≤ 3 mg/L6%
May 2026Nitrogen, ammonia total [as N], daily maximum4.37 mg/L≤ 3 mg/L46%

Limits in force (212)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly maximumreport only (deg F)all year001
Temperature, water deg. fahrenheitmonthly maximumreport only (deg F)all year001
Oxygen, dissolved [DO]monthly average minimum≥ 6 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]monthly average minimum≥ 6 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]minimum weekly average≥ 4.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]minimum weekly average≥ 4.5 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≥ 6.25 mg/LMar–Jul001
Oxygen, dissolved [DO]daily minimum≥ 4 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]daily minimum≥ 4 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMar–Jul001
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMar–Jul001
pHminimum≥ 6 SUall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
pHmaximum≤ 9 SUall year001
Alkalinity, total [as CaCO3]daily maximumreport only (mg/L)all year001
Alkalinity, total [as CaCO3]daily maximumreport only (mg/L)all year001
Solids, total suspendedmonthly average≤ 12 mg/Lall year001
Solids, total suspendedmonthly average≤ 12 mg/Lall year001
Solids, total suspendeddaily maximum≤ 24 mg/Lall year001
Solids, total suspendeddaily maximum≤ 24 mg/Lall year001
Solids, total suspendedmonthly average≤ 200 lb/dall year001
Solids, total suspendedmonthly average≤ 200 lb/dall year001
Solids, total suspendeddaily maximum≤ 400 lb/dall year001
Solids, total suspendeddaily maximum≤ 400 lb/dall year001
Oil & Greasedaily maximumreport only (mg/L)all year001
Oil & Greasedaily maximumreport only (mg/L)all year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LMay001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LMay001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LApr001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LApr001
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LJan001
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LJan001
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LJun001
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LJun001
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LAug001
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LAug001
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LDec001
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LDec001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LSep001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LSep001
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LFeb001
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LFeb001
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LJul001
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LJul001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LMar001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LMar001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LOct001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LOct001
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LNov001
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LNov001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LMay001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LMay001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LApr001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LApr001
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LJan001
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LJan001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LJun001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LJun001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LAug001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LAug001
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LDec001
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LDec001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LSep001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LSep001
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LFeb001
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LFeb001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LJul001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LJul001
Nitrogen, ammonia total [as N]daily maximum≤ 6.7 mg/LMar001
Nitrogen, ammonia total [as N]daily maximum≤ 6.7 mg/LMar001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LOct001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LOct001
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LNov001
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LNov001
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dMay001
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dMay001
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dApr001
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dApr001
Nitrogen, ammonia total [as N]monthly average≤ 67 lb/dJan001
Nitrogen, ammonia total [as N]monthly average≤ 67 lb/dJan001
Nitrogen, ammonia total [as N]monthly average≤ 23 lb/dJun001
Nitrogen, ammonia total [as N]monthly average≤ 23 lb/dJun001
Nitrogen, ammonia total [as N]monthly average≤ 23 lb/dAug001
Nitrogen, ammonia total [as N]monthly average≤ 23 lb/dAug001
Nitrogen, ammonia total [as N]monthly average≤ 67 lb/dDec001
Nitrogen, ammonia total [as N]monthly average≤ 67 lb/dDec001
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dSep001
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dSep001
Nitrogen, ammonia total [as N]monthly average≤ 67 lb/dFeb001
Nitrogen, ammonia total [as N]monthly average≤ 67 lb/dFeb001
Nitrogen, ammonia total [as N]monthly average≤ 23 lb/dJul001
Nitrogen, ammonia total [as N]monthly average≤ 23 lb/dJul001
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dMar001
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dMar001
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dOct001
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dOct001
Nitrogen, ammonia total [as N]monthly average≤ 67 lb/dNov001
Nitrogen, ammonia total [as N]monthly average≤ 67 lb/dNov001
Nitrogen, ammonia total [as N]daily maximum≤ 50 lb/dMay001
Nitrogen, ammonia total [as N]daily maximum≤ 50 lb/dMay001
Nitrogen, ammonia total [as N]daily maximum≤ 50 lb/dApr001
Nitrogen, ammonia total [as N]daily maximum≤ 50 lb/dApr001
Nitrogen, ammonia total [as N]daily maximum≤ 125 lb/dJan001
Nitrogen, ammonia total [as N]daily maximum≤ 125 lb/dJan001
Nitrogen, ammonia total [as N]daily maximum≤ 50 lb/dJun001
Nitrogen, ammonia total [as N]daily maximum≤ 50 lb/dJun001
Nitrogen, ammonia total [as N]daily maximum≤ 50 lb/dAug001
Nitrogen, ammonia total [as N]daily maximum≤ 50 lb/dAug001
Nitrogen, ammonia total [as N]daily maximum≤ 125 lb/dDec001
Nitrogen, ammonia total [as N]daily maximum≤ 125 lb/dDec001
Nitrogen, ammonia total [as N]daily maximum≤ 50 lb/dSep001
Nitrogen, ammonia total [as N]daily maximum≤ 50 lb/dSep001
Nitrogen, ammonia total [as N]daily maximum≤ 125 lb/dFeb001
Nitrogen, ammonia total [as N]daily maximum≤ 125 lb/dFeb001
Nitrogen, ammonia total [as N]daily maximum≤ 50 lb/dJul001
Nitrogen, ammonia total [as N]daily maximum≤ 50 lb/dJul001
Nitrogen, ammonia total [as N]daily maximum≤ 112 lb/dMar001
Nitrogen, ammonia total [as N]daily maximum≤ 112 lb/dMar001
Nitrogen, ammonia total [as N]daily maximum≤ 50 lb/dOct001
Nitrogen, ammonia total [as N]daily maximum≤ 50 lb/dOct001
Nitrogen, ammonia total [as N]daily maximum≤ 125 lb/dNov001
Nitrogen, ammonia total [as N]daily maximum≤ 125 lb/dNov001
Nitrogen, ammonia total [as N]weekly average≤ 3.8 mg/LMar001
Nitrogen, ammonia total [as N]weekly average≤ 3.8 mg/LMar001
Nitrogen, ammonia total [as N]weekly average≤ 63 lb/dMar001
Nitrogen, ammonia total [as N]weekly average≤ 63 lb/dMar001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year001
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly average≤ 17 lb/dall year001
Phosphorus, total [as P]monthly average≤ 17 lb/dall year001
Phosphorus, total [as P]daily maximumreport only (lb/d)all year001
Phosphorus, total [as P]daily maximumreport only (lb/d)all year001
Phosphorus, dissolveddaily maximumreport only (mg/L)all year001
Phosphorus, dissolveddaily maximumreport only (mg/L)all year001
Cyanide, total [as CN]daily maximumreport only (ug/L)all year001
Cyanide, total [as CN]daily maximumreport only (ug/L)all year001
Cyanide, free [amenable to chlorination]daily maximumreport only (ug/L)all year001
Cyanide, free [amenable to chlorination]daily maximumreport only (ug/L)all year001
Fluoride, total [as F]daily maximumreport only (mg/L)all year001
Fluoride, total [as F]daily maximumreport only (mg/L)all year001
Arsenic, total [as As]daily maximumreport only (mg/L)all year001
Arsenic, total [as As]daily maximumreport only (mg/L)all year001
Barium, total [as Ba]daily maximumreport only (mg/L)all year001
Barium, total [as Ba]daily maximumreport only (mg/L)all year001
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year001
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year001
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year001
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year001
Chromium, total [as Cr]daily maximumreport only (mg/L)all year001
Chromium, total [as Cr]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Iron, total [as Fe]daily maximumreport only (mg/L)all year001
Iron, total [as Fe]daily maximumreport only (mg/L)all year001
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year001
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year001
Lead, total [as Pb]daily maximumreport only (mg/L)all year001
Lead, total [as Pb]daily maximumreport only (mg/L)all year001
Manganese, total [as Mn]daily maximumreport only (mg/L)all year001
Manganese, total [as Mn]daily maximumreport only (mg/L)all year001
Nickel, total [as Ni]daily maximumreport only (mg/L)all year001
Nickel, total [as Ni]daily maximumreport only (mg/L)all year001
Silver, total [as Ag]daily maximumreport only (mg/L)all year001
Silver, total [as Ag]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Selenium, total [as Se]daily maximumreport only (mg/L)all year001
Selenium, total [as Se]daily maximumreport only (mg/L)all year001
Phenolics, total recoverabledaily maximumreport only (mg/L)all year001
Phenolics, total recoverabledaily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)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
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualdaily maximum≤ .038 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Chlorine, total residualdaily maximum≤ .038 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Chlorine, total residualdaily maximum≤ .038 mg/LMay–Oct001
Chlorine, total residualdaily maximum≤ .038 mg/LMay–Oct001
Mercury, total [as Hg]monthly averagereport only (ng/L)all year001
Mercury, total [as Hg]monthly averagereport only (ng/L)all year001
Mercury, total [as Hg]daily maximumreport only (ng/L)all year001
Mercury, total [as Hg]daily maximumreport only (ng/L)all year001
Mercury, total [as Hg]annual average≤ 12 ng/Lall year001
Mercury, total [as Hg]annual average≤ 12 ng/Lall year001
Mercury, total [as Hg]annual average≤ .1 lb/dall year001
Mercury, total [as Hg]annual average≤ .1 lb/dall year001
Coliform, fecal generaldaily maximum≤ 400 #/100mLMay–Oct001
Coliform, fecal generaldaily maximum≤ 400 #/100mLMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 20 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 20 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 167 lb/dall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 167 lb/dall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 334 lb/dall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 334 lb/dall year001
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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Your permit document is the final word. As JSON: /api/v1/permits/IL0068764 · MCP: https://passage-data.com/mcp