Erosion Control: Evanston vs Orland Park
How do erosion control rules compare between Evanston, IL and Orland Park, IL?
Evanston and Orland Park have similar restriction levels.
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 →Orland Park, IL
Cook County
Erosion and sediment control in Orland Park follows the Cook County Watershed Management Ordinance and Illinois EPA NPDES Construction Stormwater General Permit. Sites disturbing 0.5 acres or more require erosion control measures including silt fence, inlet protection, and stabilized construction entrances. Smaller sites must still prevent sediment from leaving the property.
View full Orland Park rules →Key Facts Comparison
| Fact | Evanston | Orland Park |
|---|---|---|
| Silt Fencing | Required before grading begins | - |
| NPDES Permit | 1+ acre disturbance | - |
| Stabilization | Within 14 days of final grade | Required on disturbed soil |
| SWPPP Required | For NPDES-permitted sites | - |
| Public Works | (847) 448-4311 | - |
| WMO Threshold | - | 0.5 acre disturbance |
| NPDES Threshold | - | 1 acre disturbance |
| Standard Controls | - | Silt fence, inlet protection |
| Track-Out | - | Must clean Village streets |
Highlighted rows indicate differences between cities.
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.
Orland Park FAQ
What erosion controls do I need on my construction site?
Sites disturbing 0.5 acres or more need a Soil Erosion and Sediment Control Plan with silt fence, inlet protection, and stabilized construction entrance. Sites disturbing 1 acre or more also need NPDES coverage.
What about a small home addition?
Small sites must still prevent sediment from leaving the property and clean any mud tracked onto Village streets. Building permit conditions typically address these requirements.
Who do I report a muddy construction site to?
Contact Orland Park Public Works at (708) 403-6350 or Code Enforcement at (708) 403-6150. Track-out onto Village streets is a frequent complaint trigger.
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