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City of Warrenville
28W701 Stafford Place
Warrenville, IL 60555
Ph: 630-393-9427
Bioswales
Bioswales are vegetated drainage ways that function by slowing runoff as it comes off an impervious surface, such as parking areas. Bioswales remove sediments and other pollutants and provide infiltration into the soil during small rain events. Maintaining and enhancing natural drainage ways can save money by eliminating the need to install storm sewers.

Parking Lot Bioswale Detail
Parking Lot Bioswale Detail

Parking Lot Bioswale at Hubble Middle School
Parking Lot Bioswale Hubble Middle School
Bioswale at Blanchard Alliance Church
Parking Lot Bioswale Blanchard Alliance Church

Infiltration Trench at the Hubble Middle School
Parking Lot Infiltration Trench Hubble Middle School

Here are few additional examples of the best management practices (BMPs) successfully implemented in the City of Warrenville: