Patent ID: 8911626

Claim:
An assembly for use in a bioretention system comprising: (a) a pre-filter chamber comprising one or more inlet openings, a permeable side wall, a bottom surface, a bottom opening along the bottom surface, and a substantially upright baffle extending around the rim of the bottom opening, wherein the baffle is adapted to direct fluid through the permeable side wall and to the surface of an adjacent bioretention cell when fluid accumulates below the height of the baffle, and further wherein the baffle is adapted to direct fluid away from the adjacent bioretention cell and through the bottom opening when fluid accumulates above the height of the baffle; (b) a bypass chamber disposed below the pre-filter chamber and comprising a top opening in fluid communication with the bottom opening of the pre-filter chamber, a side wall, and a weir module disposed within the side wall; and (c) an outlet chamber disposed below the bypass chamber and comprising an outlet opening and one or more side openings in fluid communication with the weir module.