*48 = Maximum allowable drainage time for ponded water (hrs)
*48 = Maximum allowable drainage time for ponded water (hrs)
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*Note that conceptually the drainage of the ponded area is limited by exfiltration at the base of the practice.}}
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*Note that in designs without underdrains, conceptually the drainage of ponded water is limited by exfiltration at the base of the practice.}}
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* Step 5: Sum total depth of bioretention, and compare to available space above water table and bedrock. Adjust if necessary.
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* Step 5: Sum total depth of bioretention, and compare to available depth above the seasonally high water table and/or bedrock elevation. Adjust if necessary.