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New Lenox, Village of

Sewage treatment plant, New Lenox, Illinois. NPDES permit IL0046264 expired Jun 30, 2026; its limits still apply. Last 12 months: no values over a limit, 1 of 44 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form 0 monthly (15 values), outfall A01 form 0 monthly (7 values), outfall B01 form 0 monthly (25 values), outfall INF form L monthly (4 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 4 of 48 reports late

Limits in force (65)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly average minimumreport only (mg/L)all year001
Oxygen, dissolved [DO]minimum weekly averagereport only (mg/L)all year001
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia 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]daily maximumreport only (mg/L)all year001
Chlorine, total residualmonthly average≤ .75 mg/Lall year001
Flow, totalmonthly totalreport only (Mgal/mo)all year001
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all yearA01
Solids, total suspendeddaily maximumreport only (mg/L)all yearA01
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all yearA01
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearA01
Phosphorus, total [as P]daily maximumreport only (mg/L)all yearA01
Coliform, fecal generaldaily maximum≤ 400 #/100mLall yearA01
Flow, totalmonthly totalreport only (Mgal/mo)all yearA01
Temperature, water deg. fahrenheitmonthly maximumreport only (deg F)all yearB01
Oxygen, dissolved [DO]monthly average minimum≥ 5.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, DecB01
Oxygen, dissolved [DO]minimum weekly average≥ 6 mg/LMar–JulB01
Oxygen, dissolved [DO]minimum weekly average≥ 4 mg/LJan, Feb, Aug, Sep, Oct, Nov, DecB01
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMar–JulB01
Oxygen, dissolved [DO]daily minimum≥ 3.5 mg/LJan, Feb, Aug, Sep, Oct, Nov, DecB01
pHminimum≥ 6 SUall yearB01
pHmaximum≤ 9 SUall yearB01
Solids, total suspendedmonthly average≤ 12 mg/Lall yearB01
Solids, total suspendeddaily maximum≤ 24 mg/Lall yearB01
Solids, total suspendedmonthly average≤ 221 lb/dall yearB01
Solids, total suspendeddaily maximum≤ 442 lb/dall yearB01
Nitrogen, total [as N]daily maximumreport only (mg/L)all yearB01
Nitrogen, ammonia total [as N]monthly average≤ 2.2 mg/LJan, Feb, Nov, DecB01
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LJun–AugB01
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LMarB01
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LApr, May, Sep, OctB01
Nitrogen, ammonia total [as N]daily maximum≤ 3.2 mg/LJan, Feb, Nov, DecB01
Nitrogen, ammonia total [as N]daily maximum≤ 2.9 mg/LJun–AugB01
Nitrogen, ammonia total [as N]daily maximum≤ 3.6 mg/LMarB01
Nitrogen, ammonia total [as N]daily maximum≤ 2.9 mg/LApr, May, Sep, OctB01
Nitrogen, ammonia total [as N]monthly average≤ 41 lb/dJan, Feb, Nov, DecB01
Nitrogen, ammonia total [as N]monthly average≤ 20 lb/dJun–AugB01
Nitrogen, ammonia total [as N]monthly average≤ 28 lb/dMarB01
Nitrogen, ammonia total [as N]monthly average≤ 20 lb/dApr, May, Sep, OctB01
Nitrogen, ammonia total [as N]daily maximum≤ 59 lb/dJan, Feb, Nov, DecB01
Nitrogen, ammonia total [as N]daily maximum≤ 53 lb/dJun–AugB01
Nitrogen, ammonia total [as N]daily maximum≤ 66 lb/dMarB01
Nitrogen, ammonia total [as N]daily maximum≤ 53 lb/dApr, May, Sep, OctB01
Phosphorus, total [as P]monthly average≤ 1 mg/Lall yearB01
Phosphorus, total [as P]monthly average≤ 18 lb/dall yearB01
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearB01
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearB01
Chlorine, total residualdaily maximum≤ .05 mg/Lall yearB01
Coliform, fecal generaldaily maximum≤ 400 #/100mLMay–OctB01
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall yearB01
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 20 mg/Lall yearB01
BOD, carbonaceous [5 day, 20 C]monthly average≤ 184 lb/dall yearB01
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 369 lb/dall yearB01
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/IL0046264 · MCP: https://passage-data.com/mcp