Erosion Control: Des Plaines vs Evanston

Do I need erosion control for a home addition?

Smaller projects below 1/2 acre disturbance still must manage soil and prevent sediment from leaving the site. Larger projects must implement formal erosion control plans approved by City Engineering.

When do I need an Illinois EPA permit?

Construction projects disturbing 1 acre or more of land must obtain NPDES coverage under General Permit ILR10 and prepare a Stormwater Pollution Prevention Plan.

What about sediment tracked onto the street?

Trackout from construction sites onto public streets is prohibited and must be cleaned promptly. Stabilized construction entrances are required to minimize trackout.

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.