Erosion Control: Evanston vs Oak Park

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.

Do I need erosion control for a small home project?

Yes. Even projects smaller than one acre must implement basic measures like silt fencing and inlet protection. The village checks erosion controls during building inspections.

Who is responsible for erosion control on my construction project?

Both the property owner and the contractor share responsibility. The building permit holder is ultimately responsible for ensuring erosion controls are installed and maintained throughout the project.

When can erosion control measures be removed?

Erosion controls must remain in place until the site is fully stabilized with permanent vegetation or impervious surfaces. Premature removal can result in violations if sediment leaves the site.