Erosion Control: Chicago vs Tinley Park
How do erosion control rules compare between Chicago, IL and Tinley Park, IL?
Tinley Park has fewer restrictions than Chicago.
Chicago, IL
Cook County
Chicago requires erosion and sediment control for all construction activities under the Stormwater Management Ordinance (MCC 11-18) and the Chicago Building Code. Construction sites must implement erosion control plans to prevent sediment from entering the sewer system.
View full Chicago rules →Tinley Park, IL
Cook County
Tinley Park requires erosion and sediment control measures on construction sites disturbing soil under MWRD Watershed Management Ordinance standards. Silt fence, inlet protection, construction entrance stabilization, and permanent stabilization within 14 days of final grading are typical requirements. Projects disturbing 1 acre or more require Illinois EPA NPDES Construction General Permit coverage.
View full Tinley Park rules →Key Facts Comparison
| Fact | Chicago | Tinley Park |
|---|---|---|
| Code Section | MCC 11-18, Chicago Building Code | - |
| NPDES Trigger | 1+ acre disturbance requires IEPA permit | - |
| Required BMPs | Silt fence, inlet protection, stabilized entrances | - |
| Enforcement | Dept. of Water Management + IEPA | - |
| Fine Range | $500 - $1,000/day for non-compliance | - |
| Silt Fence | - | Perimeter required |
| Inlet Protection | - | All nearby drains |
| NPDES Permit | - | 1+ acre disturbance |
| Stabilization | - | Within 14 days |
| Inspections | - | Weekly + after rains |
Highlighted rows indicate differences between cities.
Chicago FAQ
What erosion control is required for construction in Chicago?
All construction must implement erosion and sediment control per MCC 11-18, including silt fencing, inlet protection, and stabilized construction entrances. Projects over 1 acre also need an NPDES permit from IEPA.
Who enforces erosion control in Chicago?
The Chicago Department of Water Management reviews and enforces erosion control plans. The Illinois EPA enforces NPDES permits for larger disturbed areas.
Tinley Park FAQ
Does my home project need erosion controls?
Any construction with soil disturbance should include silt fence and inlet protection downstream. Projects over 1 acre require Illinois EPA NPDES permit coverage with formal SWPPPs and inspections.
What BMPs does Tinley Park require?
Silt fence, stabilized construction entrances, inlet protection, and stabilization of inactive areas within 14 days. Final stabilization must occur within 14 days of final grading.
Can I do my own erosion control inspection?
For small residential projects, yes. NPDES-permitted projects over 1 acre require a qualified SWPPP inspector to perform weekly and post-rain inspections with documented reports.
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