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HomeMy Public PortalAboutFinal Best Management Practices Summary-SB U-10SUMMARY OF BEST MANAGEMENT PRACTICES – SPRINGBANK UNIT 10 The proposed Springbank Unit 10 development has been designed to maximize the potential for protecting the water quality of stormwater runoff from the site. The planned use lends itself specifically well for this intent by creating smaller residential lots and leaving more combined open space. Below is a list of specific best management practice designs/devices utilized with the proposed within the proposed development: • Large areas of open space, especially along the western side of the site along Drauden Road. Much of this area will be primarily undisturbed except for the addition of a walking path and stabilizing the previously farmed ground with permanent vegetative control. • Shallow, dry bottom detention facility at the southwest corner to reduce stormwater runoff exiting the site from the western open spaces. Basin will be seeded with native prairie style plantings. • Landscape buffers surrounding property to provide screening opportunities as well as provide filter strip potential for entering off-site runoff. • Long flow paths through rear yard swales for flows above the storm sewer capacity to provide additional filtration of runoff prior to entering the stormwater management facilities. • Wetland bottom detention facilities that provide filtration to the stormwater runoff prior to discharge. • Sedimentation basins at the entrance to the detention facilities to remove sediment to stormwater prior to site discharge. • Large area of site along the DuPage River left undisturbed to preserve the existing banks with the existing trees and vegetation. • Basin discharges along DuPage River portion of site occurring on long, flat, rip-rap lined channels to reduce outflow velocity and minimize bank erosion.