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Airports, Flying Fields, & Services, Chicago, Illinois. NPDES permit IL0080235, in force until Feb 28, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | minimum | report only (SU) | all year |
| pH | maximum | report only (SU) | all year |
| Oil & Grease | daily maximum | report only (mg/L) | all year |
| Ethylbenzene | semi-annual maximum | report only (mg/L) | Apr, Oct |
| Naphthalene | semi-annual maximum | report only (mg/L) | Apr, Oct |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Xylene [mix of m+o+p] | semi-annual maximum | report only (mg/L) | Apr, Oct |
Cited limits by parameter: Illinois's rules and the federal ones.
Same industry: the 3 Transportation by Air 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/IL0080235 · MCP: https://passage-data.com/mcp