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Illinois Department of Natural Resources

Land, Mineral, Wildlife Conservation, Carbondale, Illinois. NPDES permit IL0059838, in force until Nov 30, 2029. Last 12 months: no values over a limit, 5 of 60 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 003 form 0 monthly (8 values), outfall A02 form 0 monthly (8 values), outfall B02 form 0 monthly (12 values), outfall C02 form 0 monthly (8 values), outfall D02 form 0 monthly (8 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 6 of 60 reports late

Limits in force (44)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. C30-day average≤ 10 mg/Lall year003
BOD, 5-day, 20 deg. Cdaily maximum≤ 20 mg/Lall year003
pHminimum≥ 6 SUall year003
pHmaximum≤ 9 SUall year003
Solids, total suspended30-day average≤ 12 mg/Lall year003
Solids, total suspendeddaily maximum≤ 24 mg/Lall year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
BOD, 5-day, 20 deg. C30-day average≤ 10 mg/Lall yearA02
BOD, 5-day, 20 deg. Cdaily maximum≤ 20 mg/Lall yearA02
pHminimum≥ 6 SUall yearA02
pHmaximum≤ 9 SUall yearA02
Solids, total suspended30-day average≤ 12 mg/Lall yearA02
Solids, total suspendeddaily maximum≤ 24 mg/Lall yearA02
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearA02
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearA02
BOD, 5-day, 20 deg. C30-day average≤ 10 mg/Lall yearB02
BOD, 5-day, 20 deg. Cdaily maximum≤ 20 mg/Lall yearB02
BOD, 5-day, 20 deg. C30-day average≤ 6.67 lb/dall yearB02
BOD, 5-day, 20 deg. Cdaily maximum≤ 16.68 lb/dall yearB02
pHminimum≥ 6 SUall yearB02
pHmaximum≤ 9 SUall yearB02
Solids, total suspended30-day average≤ 12 mg/Lall yearB02
Solids, total suspendeddaily maximum≤ 24 mg/Lall yearB02
Solids, total suspended30-day average≤ 8.01 lb/dall yearB02
Solids, total suspendeddaily maximum≤ 20.02 lb/dall yearB02
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearB02
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearB02
BOD, 5-day, 20 deg. C30-day average≤ 10 mg/Lall yearC02
BOD, 5-day, 20 deg. Cdaily maximum≤ 20 mg/Lall yearC02
pHminimum≥ 6 SUall yearC02
pHmaximum≤ 9 SUall yearC02
Solids, total suspended30-day average≤ 12 mg/Lall yearC02
Solids, total suspendeddaily maximum≤ 24 mg/Lall yearC02
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearC02
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearC02
BOD, 5-day, 20 deg. C30-day average≤ 10 mg/Lall yearD02
BOD, 5-day, 20 deg. Cdaily maximum≤ 20 mg/Lall yearD02
pHminimum≥ 6 SUall yearD02
pHmaximum≤ 9 SUall yearD02
Solids, total suspended30-day average≤ 12 mg/Lall yearD02
Solids, total suspendeddaily maximum≤ 24 mg/Lall yearD02
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD02
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearD02

How strict are these limits?

Cited limits by parameter: Illinois's rules and the federal ones.

Same industry: the 37 Administration of Environmental Quality and Housing Programs permits in Illinois.

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