This table shows a list of BMPs and associated pollutant removal mechanisms. Primary (removal) means the BMP was designed for this specific mechanism. Secondary (removal) means the BMP provides additional removal of pollutants for this mechanism even though the BMP was not designed for that purpose. An empty cell means the BMP provides limited or no removal for that mechanism.
Link to this table.

BMP group
Pollutant removal mechanisms
Water quality
Filtration Infiltration Settling Biological uptake Temperature control Soil adsorption
Pollution prevention
Not applicable - pollutants not exposed to stormwater
Better Site Design/low impact development primary secondary secondary secondary secondary secondary
Runoff volume minimization secondary secondary
Temporary construction sediment control primary
Bioretention primary secondary secondary secondary secondary secondary
Filtration primary secondary secondary secondary
Infiltration secondary primary secondary primary secondary
Stormwater ponds secondary primary secondary
Stormwater wetlands secondary secondary primary primary secondary
Supplemental treatment
Each supplemental and proprietary device should be carefully studied to learn the primary and secondary removal functions

This page was last edited on 15 December 2022, at 02:54.