Passage Data · Check a report · Use it from your AI

Discharge permits in Illinois

1,429 active individual NPDES permits with limits in EPA's file of Oct 22, 2026.

By industry

Sewage treatment plants (625)

Industrial and other (804)

Source: EPA ECHO, Oct 22, 2026. As JSON: /api/v1/permits?state=IL · MCP: https://passage-data.com/mcp · All states