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[[Category:Bioretention table]]
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Latest revision as of 20:22, 26 July 2022

Summary of factors that can be used to determine differences between infiltration basins and bioretention basins. This table corresponds with Table 1 in the adjacent flowchart.
Link to this table

BMP Typical position in watershed Treatment scale Typical storm sizes Maximum drainage area guidelines Maximum ponding depth guidelines Growing medium
Infiltration (basin, trench, underground, dry well) Downgradient of other water quantity or water quality control practices Development or regional scale control Less frequent large storm events that exceed capacity of upgradient practices 50 acres 4 feet Native soil
Bioretention basin Located throughout the watershed Site scale control Small storms (water quality events) Typically 5 acres Ideally 12 inches; can be up to 18 inches with appropriate design and plant selection Engineered growing medium

This page was last edited on 26 July 2022, at 20:22.