Summary of pollutants typically found in stormwater by source area

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Source Area Solids Total Suspended Solids Particulate Nutrients Dissolved Nutrients Bacteria Metals Chlorides Grease, Oil Pesticides Other Chemicals
Hard Roofs &#9675
Green and Brown Roofs ●;
Paved Surfaces ●;
Green Spaces
Sedimentation Basins and Detention Ponds

● = relatively high concentrations;

○ = relatively low concentrations