Erosion Control: Chicago vs Evanston
How do erosion control rules compare between Chicago, IL and Evanston, IL?
Evanston 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 →Evanston, IL
Cook County
Evanston requires erosion and sediment control measures on all construction sites that disturb soil. Silt fencing, sediment basins, and stabilization must be in place before grading begins. Projects disturbing one acre or more also need an NPDES stormwater construction permit from the Illinois EPA.
View full Evanston rules →Key Facts Comparison
| Fact | Chicago | Evanston |
|---|---|---|
| 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 Fencing | - | Required before grading begins |
| NPDES Permit | - | 1+ acre disturbance |
| Stabilization | - | Within 14 days of final grade |
| SWPPP Required | - | For NPDES-permitted sites |
| Public Works | - | (847) 448-4311 |
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.
Evanston FAQ
When is an erosion control plan required in Evanston?
All construction projects involving soil disturbance require erosion and sediment control measures. Projects disturbing one acre or more also need an NPDES permit from the Illinois EPA with a Stormwater Pollution Prevention Plan.
What erosion controls are required on construction sites?
Perimeter silt fencing, storm drain inlet protection, stabilized construction entrances, and dust control are standard requirements. Disturbed areas must be stabilized within 14 days. Street sweeping is required when mud is tracked onto public roads.
Who enforces erosion control in Evanston?
Evanston Public Works and building inspectors enforce local requirements. The Illinois EPA enforces NPDES permit conditions. MWRD also has enforcement authority under its Watershed Management Ordinance.
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