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Alton Steel Inc

Steel Wire And Related Products, major discharger, Alton, Illinois. NPDES permit IL0000612 expired Apr 30, 2024; its limits still apply. Last 12 months: over a limit 9 times (last September 2026), 1 required value missing, 2 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form 0 monthly (28 values), outfall 001 form S twice a year (40 values), outfall 200 form Q quarterly (10 values), outfall 200 form 0 quarterly
Last report on file
September 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 22 reports late

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

Period endingParameterReportedLimitOver by
March 2026Solids, total suspended, daily maximum271.12 lb/d≤ 182 lb/d49%
March 2026pH, monthly maximum9.5 SU≤ 9 SU—
April 2026Chlorine, total residual, daily maximum.2 mg/L≤ .05 mg/L300%
May 2026Chlorine, total residual, daily maximum.8 mg/L≤ .05 mg/L1500%
May 2026Oil & Grease, daily maximum< 306.95 lb/d≤ 132 lb/d133%
June 2026Chlorine, total residual, daily maximum< .1 mg/L≤ .05 mg/L100%
August 2026Chlorine, total residual, daily maximum.11 mg/L≤ .05 mg/L120%
September 2026Chlorine, total residual, daily maximum.11 mg/L≤ .05 mg/L120%
September 2026pH, monthly maximum9.1 SU≤ 9 SU—

Limits in force (82)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly maximumreport only (deg F)all year001
pHmonthly minimum≥ 6 SUall year001
pHmonthly minimum≥ 6 SUall year001
pHmonthly maximum≤ 10 SUall year001
pHmonthly maximum≤ 9 SUall year001
Solids, total suspended30-day average≤ 15 mg/Lall year001
Solids, total suspendeddaily maximum≤ 30 mg/Lall year001
Solids, total suspended30-day average≤ 91 lb/dall year001
Solids, total suspendeddaily maximum≤ 182 lb/dall year001
Oil & Grease30-day average≤ 15 mg/Lall year001
Oil & Greasesemi-annual averagereport only (mg/L)all year001
Oil & Greasesemi-annual averagereport only (mg/L)all year001
Oil & Greasedaily maximum≤ 30 mg/Lall year001
Oil & Greasesemi-annual maximumreport only (mg/L)all year001
Oil & Greasesemi-annual maximumreport only (mg/L)all year001
Oil & Grease30-day average≤ 66 lb/dall year001
Oil & Greasedaily maximum≤ 132 lb/dall year001
Arsenic, total [as As]semi-annual averagereport only (mg/L)all year001
Arsenic, total [as As]semi-annual averagereport only (mg/L)all year001
Arsenic, total [as As]semi-annual maximumreport only (mg/L)all year001
Arsenic, total [as As]semi-annual maximumreport only (mg/L)all year001
Cadmium, total [as Cd]semi-annual averagereport only (mg/L)all year001
Cadmium, total [as Cd]semi-annual averagereport only (mg/L)all year001
Cadmium, total [as Cd]semi-annual maximumreport only (mg/L)all year001
Cadmium, total [as Cd]semi-annual maximumreport only (mg/L)all year001
Chromium, hexavalent [as Cr]semi-annual averagereport only (mg/L)all year001
Chromium, hexavalent [as Cr]semi-annual averagereport only (mg/L)all year001
Chromium, hexavalent [as Cr]semi-annual maximumreport only (mg/L)all year001
Chromium, hexavalent [as Cr]semi-annual maximumreport only (mg/L)all year001
Chromium, total [as Cr]semi-annual averagereport only (mg/L)all year001
Chromium, total [as Cr]semi-annual averagereport only (mg/L)all year001
Chromium, total [as Cr]semi-annual maximumreport only (mg/L)all year001
Chromium, total [as Cr]semi-annual maximumreport only (mg/L)all year001
Copper, total [as Cu]semi-annual averagereport only (mg/L)all year001
Copper, total [as Cu]semi-annual averagereport only (mg/L)all year001
Copper, total [as Cu]semi-annual maximumreport only (mg/L)all year001
Copper, total [as Cu]semi-annual maximumreport only (mg/L)all year001
Iron, total [as Fe]30-day average≤ 2 mg/Lall year001
Iron, total [as Fe]daily maximum≤ 4 mg/Lall year001
Iron, total [as Fe]30-day average≤ 12 lb/dall year001
Iron, total [as Fe]daily maximum≤ 24 lb/dall year001
Iron, dissolved [as Fe]semi-annual averagereport only (mg/L)all year001
Iron, dissolved [as Fe]semi-annual averagereport only (mg/L)all year001
Iron, dissolved [as Fe]semi-annual maximumreport only (mg/L)all year001
Iron, dissolved [as Fe]semi-annual maximumreport only (mg/L)all year001
Lead, total [as Pb]30-day averagereport only (mg/L)all year001
Lead, total [as Pb]daily maximum≤ .18 mg/Lall year001
Lead, total [as Pb]30-day average≤ .55 lb/dall year001
Lead, total [as Pb]daily maximum≤ .86 lb/dall year001
Manganese, total [as Mn]semi-annual averagereport only (mg/L)all year001
Manganese, total [as Mn]semi-annual averagereport only (mg/L)all year001
Manganese, total [as Mn]semi-annual maximumreport only (mg/L)all year001
Manganese, total [as Mn]semi-annual maximumreport only (mg/L)all year001
Nickel, total [as Ni]semi-annual averagereport only (mg/L)all year001
Nickel, total [as Ni]semi-annual averagereport only (mg/L)all year001
Nickel, total [as Ni]semi-annual maximumreport only (mg/L)all year001
Nickel, total [as Ni]semi-annual maximumreport only (mg/L)all year001
Zinc, total [as Zn]30-day average≤ 1 mg/Lall year001
Zinc, total [as Zn]daily maximum≤ 2 mg/Lall year001
Zinc, total [as Zn]30-day average≤ 2.4 lb/dall year001
Zinc, total [as Zn]daily maximum≤ 5.1 lb/dall year001
Polychlorinated biphenyls [PCBs]monthly averagereport only (mg/L)Oct001
Polychlorinated biphenyls [PCBs]daily maximumreport only (mg/L)Oct001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualdaily maximum≤ .05 mg/Lall year001
Mercury, total [as Hg]semi-annual averagereport only (ug/L)all year001
Mercury, total [as Hg]semi-annual averagereport only (ug/L)all year001
Mercury, total [as Hg]semi-annual maximumreport only (ug/L)all year001
Mercury, total [as Hg]semi-annual maximumreport only (ug/L)all year001
pHquarterly minimumreport only (SU)all year200
pHquarterly minimumreport only (SU)all year200
pHquarterly maximumreport only (SU)all year200
pHquarterly maximumreport only (SU)all year200
Copper, total [as Cu]daily maximum≤ .0505 mg/Lall year200
Copper, total [as Cu]daily maximum≤ .0505 mg/Lall year200
Lead, total [as Pb]quarterly maximum≤ .3942 mg/Lall year200
Lead, total [as Pb]quarterly maximum≤ .3942 mg/Lall year200
Zinc, total [as Zn]quarterly maximum≤ .3134 mg/Lall year200
Zinc, total [as Zn]quarterly maximum≤ .3134 mg/Lall year200
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year200
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year200

How strict are these limits?

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

Same industry: the 22 Primary Metal Industries 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/IL0000612 · MCP: https://passage-data.com/mcp