Knowledge Checks
Why is the allowed surface ponding depth important?
a. it must be able to hold total volume indefinitely.
b. it must correspond to length and width.
c. it supports the surrounding elevation.
d. it provides temporary stormwater storage prior to the water filtering through the soil mix.
Knowledge Checks
The critical factors in bioretention design modeling are:
a. allowed surface ponding depth
b. the bioretention engineering soil mix
c. whether or not an underdrain is included
d. the infiltration rate to the native soil
e. all of the above
Knowledge Checks
The infiltration rate determines how much bioretention facility water disappears into the ground and how much is discharged as surface flow.
a. True
b. False
Knowledge Checks
Infiltration to the native soil is recommended as long as it does not:
a. cost more than expected
b. cause problems to adjacent structures or properties
c. reach the groundwater table
d. create a habitat for non-native plants