The Truckee Meadows Structural Controls Design ... - City of Sparks

6.6 Media Filtration Systems
These treatment control devices typically consist of two chambers, a pretreatment settling basin
and a filter bed filled with sand or some other absorptive filtering media. Large particles
transported in storm water runoff settle in the pretreatment basin while finer particles and
associated pollutants are removed by filtering through the media in the second chamber. There
are a number of design variations including the surface or Austin sand filter and the
underground, DC or Delaware sand filter. When used with a sand filter bed, porous pavement
can also be considered a media filtration system.
Truckee Meadows Regional Storm Water Quality Management Program
Structural Controls Design Manual, April 2007 Update
Section 6 – Public Domain Treatment Controls Page 6 - 56