Patent ID: 7459090

Claim:
A separator for removing pollutants from stormwater, the separator comprising: an elongate hollow body, a first bulkhead at one end of the body, a second bulkhead at the other end of the body, and an interior bulkhead between the first and second bulkheads; a vertical wall located in the center of the body, the wall joined to the bottom of the body and to the interior bulkhead, the wall extending from the interior bulkhead toward the first bulkhead, an opening adjacent the first bulkhead communicating the legs to either side of the wall to define a U-shaped sedimentation chamber having legs to either side of the wall and a reverse bend at the opening; a stormwater inlet port opening through the body to flow stormwater into one of the sedimentation chamber legs adjacent the interior bulkhead; a weir dam in the interior bulkhead at an end of the other of the legs; an oil chamber in the body adjacent to the interior bulkhead; a clean water chamber in the body adjacent the second bulkhead; a siphon plate in the body between the oil chamber and the clean water chamber; and a discharge opening in the second bulkhead; wherein the sedimentation chamber has a flow length greater than the distance between the first bulkhead and the interior bulkhead.