Stormwater infiltration BMPs – selection considerations

Stormwater infiltration BMPs – selection considerations
Link to this table

Stormwater BMP	Illustration	Cost	Maintenance Requirements 3	Pre‐treatment 4	Habitat Quality 5
Infiltration Basin		Low $0.5‐$1.3 CF	Simple‐Intensive	Needed Oil/Water Separator, Vegetated Filter, Sediment Basin, Water Quality Inlets	Low
Bioinfiltration Basin		Low $0.5‐$1.3 CF	Simple‐Intensive	Needed Oil/Water Separator, Vegetated Filter, Sediment Basin, Water Quality Inlets	Medium‐High
Infiltration Trench Synonym: Infiltration Gallery		Low $1‐$4 CF	Medium	Needed Oil/Water Separator, Vegetated Filter, Sediment Basin, Water Quality Inlets	None
Dry Well Synonym: Infiltration Tube, French Drain, Soak‐Away Pits, Soak Holes		Low $1‐$4 CF	Medium	Needed Oil/Water Separator, Vegetated Filter, Water Quality Inlets	None
Underground Infiltration		High 14 CF	Medium	Needed Oil/Water Separator, Water Quality Inlets	None
Dry Swale with Check Dams		Low $.5‐$1.3 CF	Simple‐Medium	Needed Vegetated Filter, Water Quality Inlets	Low‐Medium
Permeable Pavement		Medium 3‐10 CF	Medium	No Pretreatment Required	None
Tree Trench/Tree Box		High $1.80 ‐ $12.70 CF based on recommended soil volume of 1,414 CF per tree	Intensive	Needed Oil/Water Separator, Water Quality Inlets	Medium

¹ Maintenance requirements to be addressed and updated in future section
² Pretreatment requirements to be revised as per updated section
³ Habitat quality refers to the possible diversity of plantings commonly installed with each BMP