Patent ID: 8088279

Claim:
Apparatus for filtering runoff water flowing in an effluent path, comprising: a first elongate container formed from a mesh material and having an interior space and closed opposite ends; a filter medium in the interior space of the first elongate container, the filter medium selected for its ability to remove desired pollutants from runoff water; a second elongate container attached to the first elongate container along one side thereof, said second elongate container defining a weighting container adapted for anchoring the first elongate container in the effluent path to thereby prevent the first elongate container from being washed away from the effluent path, said second elongate container formed from a mesh material and having an interior space and closed opposite ends; and a metal weighting material in the interior space of the second elongate container to anchor the first elongate container in the effluent path and to thereby prevent the first elongate container from being washed away from the effluent path.