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Southern Illinois University at Carbondale

Steam And Air-Conditioning Supply, Carbondale, Illinois. NPDES permit IL0072320, in force until May 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form 0 monthly (12 values), outfall 002 form 0 monthly (12 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 24 reports late

Limits in force (24)

ParameterStatisticLimitMonthsOutfall
pHmonthly minimum≥ 6.5 SUall year001
pHmonthly maximum≤ 9 SUall year001
Solids, total suspended30-day average≤ 15 mg/Lall year001
Solids, total suspendeddaily maximum≤ 30 mg/Lall year001
Oil & Grease30-day averagereport only (mg/L)all year001
Oil & Greasedaily maximumreport only (mg/L)all year001
Boron, total [as B]30-day averagereport only (mg/L)all year001
Boron, total [as B]daily maximumreport only (mg/L)all year001
Iron, total [as Fe]30-day averagereport only (mg/L)all year001
Iron, total [as Fe]daily maximumreport only (mg/L)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
pHmonthly minimum≥ 6.5 SUall year002
pHmonthly maximum≤ 9 SUall year002
Solids, total suspended30-day average≤ 15 mg/Lall year002
Solids, total suspendeddaily maximum≤ 30 mg/Lall year002
Oil & Grease30-day averagereport only (mg/L)all year002
Oil & Greasedaily maximumreport only (mg/L)all year002
Boron, total [as B]30-day averagereport only (mg/L)all year002
Boron, total [as B]daily maximumreport only (mg/L)all year002
Iron, total [as Fe]30-day averagereport only (mg/L)all year002
Iron, total [as Fe]daily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002

How strict are these limits?

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

Same industry: the 5 Steam And Air-Conditioning Supply permits in Illinois.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IL0072320 · MCP: https://passage-data.com/mcp