First Defense

Coarse particles Greater than 80% removal of medium-fne sand particles. See Technical Abstract: Performance Verifcation of Sediment Removal with F-60 Silica Sand

Gross Pollutants Observational data from testing shows good retention of gross pollutants, including litter and leaf debris.

Liquid and Sediment Bound Hydrocarbons Greater than 40% removal of various forms of hydrocarbons, including polycyclic aromatic hydrocarbons (PAHs). Other pollutants such as nutrients and metals attached to sediment particles will also be removed. See Technical Abstract: Pollutant Removal Through Association with Sediments.

For more information about this product, look in the datasheet.