ORD 15-10 - Laserfiche WebLink

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c. Better site design. Whenever possible, projects shall be designee] using better site design techniques early in the desi= process to preserve natural areas reduce impervious cover, distribute runoff and us pervious area more effectively to treat stormwater runoff. The applicant shall attempt to limit the impervious surface of the developed site or subdivision by incorporating the following design considerations, consistent with zoning, subdivision, and PUD requirements: Open space: 1. S. Redueing sethfieks protection and d restoration a_6-.—Maxitnizing open space while incorporating smaller lot sizes to conserve natural areas and reduce the amount of stormwater runoff generated at the site. b. Conservation of natural vegetation wherever practical. c. Reforestation d. Reestablishment of prairies and wetlands Increase buffers around streams steep slopes and wetlands to protect from flood damau and 1rovide additional water quality treatm n e. , 2. Reduction of impervious cover a. Reduce new impervious area through redevelopment of existing sites and use existing roadways, trails, etc; b. Minimize street widths parking space size driveway len h sidewalk width c. Reduce impervious structure, footprint. C. Tnstal_1 semi. Permeable /permeable or porous avin 3. Distribution and minimization of runoff a. Utilize vegetated .areas for stormwater treatment b_9-:--Look for vegetated areas that can filter sheet flow, removing sediment and other pollutants, and increasing the time of concentration.. c.4$Disconnect impervious areas by allowing runoff from small impervious areas to be directed to pervious areas where it can be infiltrated or filtered. d. 44—.AIU runoff from downspouts, driveways and other impervious areas shall be directed to pervious surfaces, where feasible, or unless the applicant can demonstrate that the practice is likely to result in groundwater contamination. IN