Patent ID: 7556158

Claim:
A storm water detention system comprising a basin sized and positioned to accumulate storm water, and a flow limiting structure impeding flow of water out of the basin through the outlet, the flow limiting inlet structure comprising: a set of two or more baffles adapted to hinder floating surface contaminants into the outlet and further wherein said baffles are designed to substantially reduce the release of water surface containing floating oils and greases, and whereby the baffles substantially reduce the release of such oil and grease when the water passes through the baffles; a discharge riser having a plurality of openings sized or spaced such that a discharge rate of fluid increases as fluid depth increases; wherein each of the baffles has a upper edge and a lower edge; the upper edge defines a upper opening spaced from the riser; the lower edge defines a lower opening spaced from the riser; and wherein each baffle is coupled to the riser such that water is able to flow over the tipper edge into the riser through the upper opening.