Stormwater Management: Chicago vs Orland Park
How do stormwater management rules compare between Chicago, IL and Orland Park, IL?
Orland Park has fewer restrictions than Chicago.
Chicago, IL
Cook County
Chicago's Stormwater Management Ordinance (MCC 11-18) requires regulated developments to capture and manage stormwater runoff, including capturing the first half-inch from impervious surfaces. The 2024 Stormwater Manual provides detailed BMP guidelines.
View full Chicago rules →Orland Park, IL
Cook County
Orland Park stormwater management is governed by the Cook County Watershed Management Ordinance (WMO) administered by the Metropolitan Water Reclamation District of Greater Chicago (MWRD), as adopted and enforced locally by the Village. New development and substantial redevelopment must meet detention, water quality, and runoff volume standards. Smaller residential projects must manage runoff on-site without adversely impacting neighbors.
View full Orland Park rules →Key Facts Comparison
| Fact | Chicago | Orland Park |
|---|---|---|
| Code Section | MCC 11-18 | - |
| Volume Capture | First 0.5 inch from impervious surfaces | - |
| Alternative | 15% impervious surface reduction | - |
| Authority | Dept. of Water Management | - |
| Manual | 2024 Stormwater Management Ordinance Manual | - |
| Governing Rule | - | Cook County WMO |
| Administered By | - | MWRD + Village |
| Permit Threshold | - | 0.5 acre disturbance |
| Volume Control | - | First 1 inch capture |
| Public Works | - | (708) 403-6350 |
Highlighted rows indicate differences between cities.
Chicago FAQ
What triggers stormwater management requirements in Chicago?
Regulated developments as defined in MCC 11-18 must submit a stormwater management plan. This generally applies to new construction and significant redevelopment projects that increase impervious surface area.
What BMPs does Chicago accept for stormwater management?
Approved BMPs include green roofs, rain gardens, permeable pavement, bioswales, cisterns, rain barrels, and native landscaping. The 2024 Stormwater Manual provides detailed design guidance.
Orland Park FAQ
Who regulates stormwater in Orland Park?
The Cook County Watershed Management Ordinance administered by MWRD, as enforced locally by the Village. Public Works handles Village stormwater infrastructure.
Do I need a permit to add a patio or driveway extension?
Most small residential projects do not trigger WMO permitting (0.5-acre threshold) but must still manage runoff on-site and comply with Village drainage rules. Building permits cover small projects.
Where do I report a drainage problem?
Contact Orland Park Public Works at (708) 403-6350. Disputes between neighbors over stormwater diversion may also have civil remedies.
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