The human impact has affected natural hydrological cycles. The increase in impermeable surfaces has decreased groundwater flow and evapotranspiration, which in turn increases surface runoff. Impermeable surfaces will continue to be created unless measures are implemented that are natural or mimic nature.
The goal of this study is to provide insight into solutions pertaining to storm water mitigation via a case study that used three separate systems to mitigate stormwater runoff. A large retail development containing a Costco and a Target was constructed on a 50 acre site with two large department stores constructed adjacent to one another. Each store used very different approaches to mitigate storm water runoff.
Target used the emerging technology of porous pavement and Costco used a filter cartridge system and a traditional retention pond. Target was willing to try an emerging technology while Costco adhered to strict pavement smoothness guidelines for there stores. In the end a holistic approach achieved the maximum use of space while minimizing the impact on the environment.
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