Removal Efficiency*
Removal efficiencies for all relevant pollutants far exceed both North American and European Standards for stormwater run-off.

Total Suspended Solids (TSS)
> 95% Zinc (Zn)
> 80% Lead (Pb)
> 95% Copper (Cu)
> 90% Hydrocarbons
> 98% Phosphorous
> 70% Nitrates *