Slide 75 of 119
Notes:
The perimeter sand filter includes the basic design elements of a sediment chamber and a filter bed. In this design, however, flow enters the system through grates, usually at the edge of a parking lot. The perimeter sand filter is designed as an on-line practice, with all flows entering the system, with larger events bypassing treatment by entering an overflow chamber. One major advantage to the perimeter sand filter design is that it requires little hydraulic head, and thus is a good option in areas of low relief.
