Other Pollutants Reduced by Constructed Basins: Stormwater Ponds
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Pollutant Category Constituent Treatment Capabilities (Low = < 30%;

Medium = 30-65%; High = 65 -100%)

Metals1, 2 Cd, Cr, Cu, Zn Medium/High
As, Fe, Ni, Pb
Nutrients Total Nitrogen, Medium
TKN Low
Organics High

1 Results are for total metals only
2 Information on As was found only in the International Stormwater Database where removal was found to be low