Stormwater filtration is an essential component of urban runoff management. Filtration can improve water quality by removing suspended solids and pollutants, helping to meet TSS removal targets and maintain watershed health. Filtration is the process by which stormwater [[Runoff volume control targets|runoff]] is conveyed through a medium to remove solid particles and associated pollutants. Filter media can include materials such as gravel, native or engineered soils, and [[geotextiles]]. Stormwater passes through a filter based on the pressure difference on either side of the filter. In most stormwater treatment applications, the pressure difference is created by gravity (or hydraulic head).
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Stormwater filtration is an essential component of urban runoff management. Filtration can improve water quality by removing suspended solids and pollutants which helps meet TSS removal targets and maintain watershed health. Filtration is the process by which stormwater [[Runoff volume control targets|runoff]] is conveyed through a medium to remove solid particles and associated pollutants. Filter media can include materials such as gravel, native or engineered soils, and [[geotextiles]]. Stormwater passes through a filter based on the pressure difference on either side of the filter. In most stormwater treatment applications, the pressure difference is created by gravity (or hydraulic head).