Downstream Defender

Fine particles
Greater than 80% removal of fne sand particles. See Technical Abstract: Performance Verifcation of Fine Sediment Removal with US Silica OK-110.

Gross Pollutants.
100% of foatable debris, such as food wrappers, Styrofoam cups and drinks cartons removed in independent site trials.

Liquid and Sediment Bound Hydrocarbons
Greater than 50% removal of various forms of hydrocarbons, including free foating oils and polycyclic aromatic hydrocarbons (PAHs). See Technical Abstract: Removal of Hydrocarbons

Sediment Bound Heavy Metals and Nutrients As an effcient device for removal of fne sediment, the Downstream Defender® is also effective for removal of sediment bound pollutants. See Technical Abstract: Pollutant Removal Through Association with Sediments.