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Dry swale pollutant load reduction

 

Dry swale pollutant load reduction
Pollutant Category Constituent

Treatment Capabilities

(Low = < 30%; Medium = 30-65%;

High = 65 -100%)

Metals1 Cd, Cr, Cu, Zn Medium
As2,Fe, Ni, Pb Medium/High
Nutrients Total Nitrogen, TKN Low
Bacteria Fecal Coliform, E. coli Low
Organics   Medium
1Results are for total metals only
2Information on As was found only in the International Stormwater Database where removal was found to be low