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Blast Furnaces And Steel Mills, major discharger, Peoria, Illinois. NPDES permit IL0002526 expired Jul 31, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | monthly minimum | ≥ 6 SU | all year | 001 |
| pH | monthly maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 15 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 422 lb/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 1914 lb/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 2824 lb/d | all year | 001 |
| Oil & Grease | 30-day average | ≤ 15 mg/L | all year | 001 |
| Oil & Grease | daily maximum | ≤ 30 mg/L | all year | 001 |
| Oil & Grease | 30-day average | report only (lb/d) | all year | 001 |
| Oil & Grease | daily maximum | report only (lb/d) | all year | 001 |
| Oil & Grease | 30-day average | ≤ 370 lb/d | all year | 001 |
| Oil & Grease | daily maximum | ≤ 927 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 3 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 85 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 382 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 472 lb/d | all year | 001 |
| Iron, total [as Fe] | 30-day average | ≤ 2 mg/L | all year | 001 |
| Iron, total [as Fe] | daily maximum | ≤ 4 mg/L | all year | 001 |
| Iron, total [as Fe] | 30-day average | ≤ 56 lb/d | all year | 001 |
| Iron, total [as Fe] | daily maximum | ≤ 255 lb/d | all year | 001 |
| Iron, total [as Fe] | daily maximum | ≤ 314 lb/d | all year | 001 |
| Lead, total [as Pb] | 30-day average | ≤ .2 mg/L | all year | 001 |
| Lead, total [as Pb] | daily maximum | ≤ .4 mg/L | all year | 001 |
| Lead, total [as Pb] | 30-day average | report only (lb/d) | all year | 001 |
| Lead, total [as Pb] | daily maximum | report only (lb/d) | all year | 001 |
| Lead, total [as Pb] | 30-day average | ≤ 3 lb/d | all year | 001 |
| Lead, total [as Pb] | daily maximum | ≤ 9 lb/d | all year | 001 |
| Zinc, total [as Zn] | 30-day average | ≤ 1 mg/L | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 2 mg/L | all year | 001 |
| Zinc, total [as Zn] | 30-day average | report only (lb/d) | all year | 001 |
| Zinc, total [as Zn] | daily maximum | report only (lb/d) | all year | 001 |
| Zinc, total [as Zn] | 30-day average | ≤ 3.8 lb/d | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 11 lb/d | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| pH | monthly minimum | ≥ 6 SU | all year | 002 |
| pH | monthly maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | 30-day average | ≤ 15 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 002 |
| Solids, total suspended | 30-day average | ≤ 150 lb/d | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 590 lb/d | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 2824 lb/d | all year | 002 |
| Oil & Grease | 30-day average | ≤ 15 mg/L | all year | 002 |
| Oil & Grease | daily maximum | ≤ 30 mg/L | all year | 002 |
| Oil & Grease | 30-day average | report only (lb/d) | all year | 002 |
| Oil & Grease | daily maximum | report only (lb/d) | all year | 002 |
| Oil & Grease | 30-day average | ≤ 370 lb/d | all year | 002 |
| Oil & Grease | daily maximum | ≤ 927 lb/d | all year | 002 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 3 mg/L | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6 mg/L | all year | 002 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 30 lb/d | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 118 lb/d | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 472 lb/d | all year | 002 |
| Iron, total [as Fe] | 30-day average | ≤ 2 mg/L | all year | 002 |
| Iron, total [as Fe] | daily maximum | ≤ 4 mg/L | all year | 002 |
| Iron, total [as Fe] | 30-day average | ≤ 20 lb/d | all year | 002 |
| Iron, total [as Fe] | daily maximum | ≤ 79 lb/d | all year | 002 |
| Iron, total [as Fe] | daily maximum | ≤ 314 lb/d | all year | 002 |
| Lead, total [as Pb] | 30-day average | ≤ .2 mg/L | all year | 002 |
| Lead, total [as Pb] | daily maximum | ≤ .4 mg/L | all year | 002 |
| Lead, total [as Pb] | 30-day average | report only (lb/d) | all year | 002 |
| Lead, total [as Pb] | daily maximum | report only (lb/d) | all year | 002 |
| Lead, total [as Pb] | 30-day average | ≤ 3 lb/d | all year | 002 |
| Lead, total [as Pb] | daily maximum | ≤ 9 lb/d | all year | 002 |
| Zinc, total [as Zn] | 30-day average | ≤ 1 mg/L | all year | 002 |
| Zinc, total [as Zn] | daily maximum | ≤ 2 mg/L | all year | 002 |
| Zinc, total [as Zn] | 30-day average | report only (lb/d) | all year | 002 |
| Zinc, total [as Zn] | daily maximum | report only (lb/d) | all year | 002 |
| Zinc, total [as Zn] | 30-day average | ≤ 3.8 lb/d | all year | 002 |
| Zinc, total [as Zn] | daily maximum | ≤ 11 lb/d | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| pH | monthly minimum | ≥ 6 SU | all year | 003 |
| pH | monthly maximum | ≤ 10 SU | all year | 003 |
| Solids, total suspended | 30-day average | ≤ 15 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 003 |
| Solids, total suspended | 30-day average | ≤ 150 lb/d | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 590 lb/d | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 2824 lb/d | all year | 003 |
| Oil & Grease | 30-day average | ≤ 15 mg/L | all year | 003 |
| Oil & Grease | daily maximum | ≤ 30 mg/L | all year | 003 |
| Oil & Grease | 30-day average | report only (lb/d) | all year | 003 |
| Oil & Grease | daily maximum | report only (lb/d) | all year | 003 |
| Oil & Grease | 30-day average | ≤ 370 lb/d | all year | 003 |
| Oil & Grease | daily maximum | ≤ 927 lb/d | all year | 003 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 3 mg/L | all year | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6 mg/L | all year | 003 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 30 lb/d | all year | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 118 lb/d | all year | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 472 lb/d | all year | 003 |
| Iron, total [as Fe] | 30-day average | ≤ 2 mg/L | all year | 003 |
| Iron, total [as Fe] | daily maximum | ≤ 4 mg/L | all year | 003 |
| Iron, total [as Fe] | 30-day average | ≤ 20 lb/d | all year | 003 |
| Iron, total [as Fe] | daily maximum | ≤ 79 lb/d | all year | 003 |
| Iron, total [as Fe] | daily maximum | ≤ 314 lb/d | all year | 003 |
| Lead, total [as Pb] | 30-day average | ≤ .2 mg/L | all year | 003 |
| Lead, total [as Pb] | daily maximum | ≤ .4 mg/L | all year | 003 |
| Lead, total [as Pb] | 30-day average | report only (lb/d) | all year | 003 |
| Lead, total [as Pb] | daily maximum | report only (lb/d) | all year | 003 |
| Lead, total [as Pb] | 30-day average | ≤ 3 lb/d | all year | 003 |
| Lead, total [as Pb] | daily maximum | ≤ 9 lb/d | all year | 003 |
| Zinc, total [as Zn] | 30-day average | ≤ 1 mg/L | all year | 003 |
| Zinc, total [as Zn] | daily maximum | ≤ 2 mg/L | all year | 003 |
| Zinc, total [as Zn] | 30-day average | report only (lb/d) | all year | 003 |
| Zinc, total [as Zn] | daily maximum | report only (lb/d) | all year | 003 |
| Zinc, total [as Zn] | 30-day average | ≤ 3.8 lb/d | all year | 003 |
| Zinc, total [as Zn] | daily maximum | ≤ 11 lb/d | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| Carbon tetrachloride | semi-annual average | report only (mg/L) | all year | A01 |
| Carbon tetrachloride | semi-annual average | report only (mg/L) | all year | A01 |
| Carbon tetrachloride | semi-annual maximum | report only (mg/L) | all year | A01 |
| Carbon tetrachloride | semi-annual maximum | report only (mg/L) | all year | A01 |
| 1,2-Dichloroethane | semi-annual average | report only (mg/L) | all year | A01 |
| 1,2-Dichloroethane | semi-annual average | report only (mg/L) | all year | A01 |
| 1,2-Dichloroethane | semi-annual maximum | report only (mg/L) | all year | A01 |
| 1,2-Dichloroethane | semi-annual maximum | report only (mg/L) | all year | A01 |
| Chloroform | semi-annual average | report only (mg/L) | all year | A01 |
| Chloroform | semi-annual average | report only (mg/L) | all year | A01 |
| Chloroform | semi-annual maximum | report only (mg/L) | all year | A01 |
| Chloroform | semi-annual maximum | report only (mg/L) | all year | A01 |
| Toluene | semi-annual average | report only (mg/L) | all year | A01 |
| Toluene | semi-annual average | report only (mg/L) | all year | A01 |
| Toluene | semi-annual maximum | report only (mg/L) | all year | A01 |
| Toluene | semi-annual maximum | report only (mg/L) | all year | A01 |
| Methylene chloride | semi-annual average | report only (mg/L) | all year | A01 |
| Methylene chloride | semi-annual average | report only (mg/L) | all year | A01 |
| Methylene chloride | semi-annual maximum | report only (mg/L) | all year | A01 |
| Methylene chloride | semi-annual maximum | report only (mg/L) | all year | A01 |
| Tetrachloroethylene | semi-annual average | report only (mg/L) | all year | A01 |
| Tetrachloroethylene | semi-annual average | report only (mg/L) | all year | A01 |
| Tetrachloroethylene | semi-annual maximum | report only (mg/L) | all year | A01 |
| Tetrachloroethylene | semi-annual maximum | report only (mg/L) | all year | A01 |
| 1,1-Dichloroethane | semi-annual average | report only (mg/L) | all year | A01 |
| 1,1-Dichloroethane | semi-annual average | report only (mg/L) | all year | A01 |
| 1,1-Dichloroethane | semi-annual maximum | report only (mg/L) | all year | A01 |
| 1,1-Dichloroethane | semi-annual maximum | report only (mg/L) | all year | A01 |
| 1,1-Dichloroethylene | semi-annual average | report only (mg/L) | all year | A01 |
| 1,1-Dichloroethylene | semi-annual average | report only (mg/L) | all year | A01 |
| 1,1-Dichloroethylene | semi-annual maximum | report only (mg/L) | all year | A01 |
| 1,1-Dichloroethylene | semi-annual maximum | report only (mg/L) | all year | A01 |
| 1,1,1-Trichloroethane | semi-annual average | report only (mg/L) | all year | A01 |
| 1,1,1-Trichloroethane | semi-annual average | report only (mg/L) | all year | A01 |
| 1,1,1-Trichloroethane | semi-annual maximum | report only (mg/L) | all year | A01 |
| 1,1,1-Trichloroethane | semi-annual maximum | report only (mg/L) | all year | A01 |
| Vinyl chloride | semi-annual average | report only (mg/L) | all year | A01 |
| Vinyl chloride | semi-annual average | report only (mg/L) | all year | A01 |
| Vinyl chloride | semi-annual maximum | report only (mg/L) | all year | A01 |
| Vinyl chloride | semi-annual maximum | report only (mg/L) | all year | A01 |
| Trichloroethylene | semi-annual average | report only (mg/L) | all year | A01 |
| Trichloroethylene | semi-annual average | report only (mg/L) | all year | A01 |
| Trichloroethylene | semi-annual maximum | report only (mg/L) | all year | A01 |
| Trichloroethylene | semi-annual maximum | report only (mg/L) | all year | A01 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | A01 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | A01 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | A01 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | A01 |
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/IL0002526 · MCP: https://passage-data.com/mcp