Passage Data · Check a report · Use it from your AI
Blast Furnaces And Steel Mills, Lemont, Illinois. NPDES permit IL0001309, in force until Dec 31, 2028. Last 12 months: no values over a limit, 42 of 72 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Chloride [as Cl] | quarterly maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 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 |
| Chloride [as Cl] | quarterly maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| Chloride [as Cl] | quarterly maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| Chloride [as Cl] | quarterly maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 006 |
| 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 |
| Chloride [as Cl] | quarterly maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| Chloride [as Cl] | quarterly maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 008 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 008 |
Cited limits by parameter: Illinois's rules and the federal ones.
Same industry: the 22 Primary Metal Industries permits in Illinois.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/IL0001309 · MCP: https://passage-data.com/mcp