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Bolingbrook, Village of

Sewage treatment plant, major discharger, Bolingbrook, Illinois. NPDES permit IL0032735, in force until Sep 30, 2027. Last 12 months: over a limit 9 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form 0 monthly (88 values), outfall INF form L monthly (6 values), outfall 001 form S twice a year
Renewal application due
Apr 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
17 values over a limit, 0 required values missing, 0 of 26 reports late

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

Period endingParameterReportedLimitOver by
October 2025Mercury, total [as Hg], annual average16 ng/L≤ 12 ng/L33%
November 2025Mercury, total [as Hg], annual average16 ng/L≤ 12 ng/L33%
December 2025Mercury, total [as Hg], annual average16 ng/L≤ 12 ng/L33%
January 2026Mercury, total [as Hg], annual average16 ng/L≤ 12 ng/L33%
February 2026Mercury, total [as Hg], annual average15 ng/L≤ 12 ng/L25%
February 2026Nitrogen, ammonia total [as N], daily maximum12.3 mg/L≤ 8 mg/L54%
March 2026Mercury, total [as Hg], annual average15 ng/L≤ 12 ng/L25%
April 2026Mercury, total [as Hg], annual average14 ng/L≤ 12 ng/L17%
June 2026Nitrogen, ammonia total [as N], daily maximum3.18 mg/L≤ 3 mg/L6%

Limits in force (158)

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≥ 5.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]monthly average minimum≥ 5.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]minimum weekly average≥ 4 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]minimum weekly average≥ 4 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]minimum weekly average≥ 6 mg/LMar–Jul001
Oxygen, dissolved [DO]minimum weekly average≥ 6 mg/LMar–Jul001
Oxygen, dissolved [DO]daily minimum≥ 3.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, Dec001
Oxygen, dissolved [DO]daily minimum≥ 3.5 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≤ 25 mg/Lall year001
Solids, total suspendedmonthly average≤ 25 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 1564 lb/dall year001
Solids, total suspendedmonthly average≤ 1564 lb/dall year001
Solids, total suspendedweekly average≤ 2815 lb/dall year001
Solids, total suspendedweekly average≤ 2815 lb/dall year001
Oil & Greasedaily maximumreport only (mg/L)all year001
Oil & Greasedaily maximumreport 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≤ 2.4 mg/LMar001
Nitrogen, ammonia total [as N]monthly average≤ 2.4 mg/LMar001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LApr–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LApr–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LMar001
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LMar001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LApr–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LApr–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 150 lb/dMar001
Nitrogen, ammonia total [as N]monthly average≤ 150 lb/dMar001
Nitrogen, ammonia total [as N]monthly average≤ 94 lb/dApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ 94 lb/dApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ 250 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 250 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 94 lb/dApr–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 94 lb/dApr–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 500 lb/dMar001
Nitrogen, ammonia total [as N]daily maximum≤ 500 lb/dMar001
Nitrogen, ammonia total [as N]daily maximum≤ 188 lb/dApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 188 lb/dApr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 500 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 500 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 188 lb/dApr–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 188 lb/dApr–Oct001
Nitrogen, ammonia total [as N]weekly average≤ 6 mg/LMar001
Nitrogen, ammonia total [as N]weekly average≤ 6 mg/LMar001
Nitrogen, ammonia total [as N]weekly average≤ 375 lb/dMar001
Nitrogen, ammonia total [as N]weekly average≤ 375 lb/dMar001
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 averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)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
Chloride [as Cl]daily maximumreport only (mg/L)all year001
Chloride [as Cl]daily maximumreport only (mg/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, hexavalent [as Cr]daily maximum≤ .016 mg/Lall year001
Chromium, hexavalent [as Cr]daily maximum≤ .016 mg/Lall year001
Chromium, hexavalent [as Cr]daily maximum≤ 1.0008 lb/dall year001
Chromium, hexavalent [as Cr]daily maximum≤ 1.0008 lb/dall 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]monthly average≤ .162 mg/Lall year001
Zinc, total [as Zn]monthly average≤ .162 mg/Lall year001
Zinc, total [as Zn]daily maximum≤ .2583 mg/Lall year001
Zinc, total [as Zn]daily maximum≤ .2583 mg/Lall year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]monthly average≤ 10 lb/dall year001
Zinc, total [as Zn]monthly average≤ 10 lb/dall year001
Zinc, total [as Zn]daily maximum≤ 16 lb/dall year001
Zinc, total [as Zn]daily maximum≤ 16 lb/dall year001
Selenium, total [as Se]daily maximumreport only (mg/L)all year001
Selenium, total [as Se]daily maximumreport only (mg/L)all year001
Coliform, fecal - % samples exceeding limitmaximum≤ 10 %May–Oct001
Coliform, fecal - % samples exceeding limitmaximum≤ 10 %May–Oct001
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/Lall year001
Chlorine, total residualdaily maximum≤ .038 mg/Lall year001
Nitrogen, Kjeldahl Totaldaily maximumreport only (mg/L)all year001
Nitrogen, Kjeldahl Totaldaily maximumreport only (mg/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]daily maximumreport only (ng/L)all year001
Mercury, total [as Hg]daily maximumreport only (ng/L)all year001
Mercury, total [as Hg]annual average≤ .00075 lb/dall year001
Mercury, total [as Hg]annual average≤ .00075 lb/dall year001
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–Oct001
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–Oct001
Coliform, fecal generaldaily maximumreport only (#/100mL)May–Oct001
Coliform, fecal generaldaily maximumreport only (#/100mL)May–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1251 lb/dall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1251 lb/dall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 2502 lb/dall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 2502 lb/dall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearINF
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF
Nitrogen, total [as N]daily maximumreport only (mg/L)all yearINF
Phosphorus, total [as P]daily maximumreport 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/IL0032735 · MCP: https://passage-data.com/mcp