Summary of Construction Cost Data Collected
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BMP name Number of BMPs Cost per Average cost ($) Sample standard deviation
Bioretention Basins 11 Water quality volume/ft3 15 9
Biofiltration Basins 2 Water quality volume/ft3 58 61
Large Wet Detention Basins treating more than 100,000 ft3 5 Water quality volume/ft3 2 2
Small Detention Basins treating less than 10,000 ft3 3 Water quality volume/ft3 145 42
Constructed Wetlands 4 Water quality volume/ft3 1 1.5
Infiltration Trenches 8 Water quality volume/ft3 11 30
Infiltration Basins 6 Water quality volume/ft3 21 15
Underground Infiltration 8 Water quality volume/ft3 213 372
Pervious Pavement 7 Water quality volume/ft3 16 8

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