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Lasalle, City of

Sewage treatment plant, La Salle, Illinois. NPDES permit IL0078336, in force until Nov 30, 2026. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 26 days after each period: outfall 001 form 0 monthly (60 values), outfall INFL form L monthly (4 values), outfall 001 form S twice a year, outfall INFL form S twice a year
Renewal application due
Jun 3, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 5 required values missing, 6 of 28 reports late

Limits in force (180)

ParameterStatisticLimitMonthsOutfall
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≥ 6 mg/LMar–Jul001
Oxygen, dissolved [DO]minimum weekly average≥ 6 mg/LMar–Jul001
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]daily minimum≥ 5 mg/LMar–Jul001
Oxygen, dissolved [DO]daily minimum≥ 5 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
pHminimum≥ 6 SUall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
pHmaximum≤ 9 SUall 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≤ 150 lb/dall year001
Solids, total suspendedmonthly average≤ 150 lb/dall year001
Solids, total suspendeddaily maximum≤ 300 lb/dall year001
Solids, total suspendeddaily maximum≤ 300 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 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ .7 mg/LJun–Aug001
Nitrogen, ammonia total [as N]monthly average≤ .7 mg/LJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 3.6 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 3.6 mg/LJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 2.8 mg/LMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 2.8 mg/LMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 3.5 mg/LJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 3.5 mg/LJun–Aug001
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 14 lb/dMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ 14 lb/dMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]monthly average≤ 8.8 lb/dJun–Aug001
Nitrogen, ammonia total [as N]monthly average≤ 8.8 lb/dJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 45 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 45 lb/dJan, Feb, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 35 lb/dMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 35 lb/dMar, Apr, May, Sep, Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 44 lb/dJun–Aug001
Nitrogen, ammonia total [as N]daily maximum≤ 44 lb/dJun–Aug001
Nitrogen, ammonia total [as N]weekly average≤ 1.8 mg/LJun–Aug001
Nitrogen, ammonia total [as N]weekly average≤ 1.8 mg/LJun–Aug001
Nitrogen, ammonia total [as N]weekly average≤ 23 lb/dJun–Aug001
Nitrogen, ammonia total [as N]weekly average≤ 23 lb/dJun–Aug001
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year001
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year001
Phosphorus, total [as P]monthly average≤ 6.3 lb/dall year001
Phosphorus, total [as P]monthly average≤ 6.3 lb/dall 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
Beryllium, total [as Be]daily maximumreport only (mg/L)all year001
Beryllium, total [as Be]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]monthly average≤ .0513 mg/Lall year001
Copper, total [as Cu]monthly average≤ .0513 mg/Lall year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]daily maximum≤ .031 mg/Lall year001
Copper, total [as Cu]daily maximum≤ .031 mg/Lall year001
Copper, total [as Cu]monthly average≤ .64 lb/dall year001
Copper, total [as Cu]monthly average≤ .64 lb/dall year001
Copper, total [as Cu]daily maximum≤ .39 lb/dall year001
Copper, total [as Cu]daily maximum≤ .39 lb/dall 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
Thallium, total [as Tl]daily maximumreport only (mg/L)all year001
Thallium, total [as Tl]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
Antimony, total [as Sb]daily maximumreport only (mg/L)all year001
Antimony, total [as Sb]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
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≤ .05 mg/Lall year001
Chlorine, total residualdaily maximum≤ .05 mg/Lall year001
Mercury, total [as Hg]daily maximumreport only (ng/L)all year001
Mercury, total [as Hg]daily maximumreport only (ng/L)all 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≤ 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≤ 125 lb/dall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 125 lb/dall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 250 lb/dall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 250 lb/dall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearINFL
Solids, total suspendedmonthly averagereport only (mg/L)all yearINFL
Oil & Greasedaily maximumreport only (mg/L)all yearINFL
Oil & Greasedaily maximumreport only (mg/L)all yearINFL
Cyanide, total [as CN]daily maximumreport only (ug/L)all yearINFL
Cyanide, total [as CN]daily maximumreport only (ug/L)all yearINFL
Cyanide, free [amenable to chlorination]daily maximumreport only (ug/L)all yearINFL
Cyanide, free [amenable to chlorination]daily maximumreport only (ug/L)all yearINFL
Fluoride, total [as F]daily maximumreport only (mg/L)all yearINFL
Fluoride, total [as F]daily maximumreport only (mg/L)all yearINFL
Arsenic, total [as As]daily maximumreport only (mg/L)all yearINFL
Arsenic, total [as As]daily maximumreport only (mg/L)all yearINFL
Barium, total [as Ba]daily maximumreport only (mg/L)all yearINFL
Barium, total [as Ba]daily maximumreport only (mg/L)all yearINFL
Beryllium, total [as Be]daily maximumreport only (mg/L)all yearINFL
Beryllium, total [as Be]daily maximumreport only (mg/L)all yearINFL
Cadmium, total [as Cd]daily maximumreport only (mg/L)all yearINFL
Cadmium, total [as Cd]daily maximumreport only (mg/L)all yearINFL
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all yearINFL
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all yearINFL
Chromium, total [as Cr]daily maximumreport only (mg/L)all yearINFL
Chromium, total [as Cr]daily maximumreport only (mg/L)all yearINFL
Copper, total [as Cu]daily maximumreport only (mg/L)all yearINFL
Copper, total [as Cu]daily maximumreport only (mg/L)all yearINFL
Iron, total [as Fe]daily maximumreport only (mg/L)all yearINFL
Iron, total [as Fe]daily maximumreport only (mg/L)all yearINFL
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all yearINFL
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all yearINFL
Lead, total [as Pb]daily maximumreport only (mg/L)all yearINFL
Lead, total [as Pb]daily maximumreport only (mg/L)all yearINFL
Manganese, total [as Mn]daily maximumreport only (mg/L)all yearINFL
Manganese, total [as Mn]daily maximumreport only (mg/L)all yearINFL
Thallium, total [as Tl]daily maximumreport only (mg/L)all yearINFL
Thallium, total [as Tl]daily maximumreport only (mg/L)all yearINFL
Nickel, total [as Ni]daily maximumreport only (mg/L)all yearINFL
Nickel, total [as Ni]daily maximumreport only (mg/L)all yearINFL
Silver, total [as Ag]daily maximumreport only (mg/L)all yearINFL
Silver, total [as Ag]daily maximumreport only (mg/L)all yearINFL
Zinc, total [as Zn]daily maximumreport only (mg/L)all yearINFL
Zinc, total [as Zn]daily maximumreport only (mg/L)all yearINFL
Antimony, total [as Sb]daily maximumreport only (mg/L)all yearINFL
Antimony, total [as Sb]daily maximumreport only (mg/L)all yearINFL
Selenium, total [as Se]daily maximumreport only (mg/L)all yearINFL
Selenium, total [as Se]daily maximumreport only (mg/L)all yearINFL
Phenolics, total recoverabledaily maximumreport only (mg/L)all yearINFL
Phenolics, total recoverabledaily maximumreport only (mg/L)all yearINFL
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearINFL
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearINFL
Mercury, total [as Hg]daily maximumreport only (ng/L)all yearINFL
Mercury, total [as Hg]daily maximumreport only (ng/L)all yearINFL

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/IL0078336 · MCP: https://passage-data.com/mcp