Patent ID: 8535533

Claim:
A bioretention assembly for use in an underground storm water management system, comprising: (a) four sidewalls; (b) a first chamber disposed within said sidewalls and comprising an inlet opening, a bottom surface, a filter screen along a first side, and a bypass opening along a second side; (c) a second chamber adjacent to the first chamber and comprising one or more side openings adapted to receive fluid passing through the filter screen of the first chamber; (d) a third chamber disposed below the first chamber and comprising a side opening adapted to receive fluid passing through the bypass opening of the first chamber and an outlet opening; and (e) a bypass structure disposed in fluid communication with said bypass opening and comprising a top weir and a bottom weir; wherein the bypass structure is adapted to direct fluid through the filter screen of the first chamber and through the side opening of the second chamber when the fluid accumulates below the height of the bottom weir; and further wherein the bypass structure is adapted to direct fluid through the bypass opening of the first chamber, away from the second chamber, and through the side opening of the third chamber when fluid accumulates above the height of the bottom weir.