Bioretention cells   

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[edit] Alternatives

Swales and rain gardens are very similar in concept, process and appearance to bioretention cells, but with more emphasis on natural processes and less on engineering.^{[verification needed]} They may be expected to have lower capacities for handling large flows, but when integrated into a landscape on a large scale, their total flow handling may be similar. Their advantages are in:

• Greater groundwater recharge^{[verification needed]}
• Reduced flow downstream and off-site, where adequate capacity is provided. This means less need for downstream stormwater treatment, and less contribution to downstream flooding.

[edit] External links

• Fact Sheets/Tool6_Stormwater_Practices/Filtering Practice/Bioretention.htm Stormwater Management Fact Sheet: Bioretention

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