High Level Treatment of Stormwater Heavy Metals

This presentation reviews the results of several recen t and related stormwater research projects that focused on the treatability of stormwater heavy me tals. Pollutant Associations with Various Stormwater Particle Sizes and Filter Components Figure 1 illustrates typical stormwater outfall particl e size distributions, indicating that median particle sizes in the range of about 2 to 20 µm. The data w as obtained from about 50 storms monitored over a 2 year period using both automatic sample rs for the suspended solids, in addition to bed load samplers that captured the larger pa rticulates.