Patent ID: 7686956

Claim:
A water purification system for reducing pollutants in surface runoff water that has been washed into the fluid flow of the flow stream of a drainage channel, comprising: a) a tank member in fluid communication with said flow stream, said tank member having an axis of elongation, an upstream end, and a downstream end axially removed from and in fixed spaced relationship with said upstream end, and where said tank member has an inlet port contained in said upstream end and an outlet port contained in said downstream end; b) an open reservoir region bounded by said tank member and contained therein where said open reservoir region communicates with said inlet port and said outlet port, and where said outlet port is so disposed in said downstream end to permit said surface runoff water to pool in said reservoir region; c) a bioremediation plant disposed in said reservoir region having the property of removing pollutants from said surface runoff water pooled in said reservoir region; and d) dam means disposed in said drainage channel and located in the flow stream upstream of said inlet port for directing at least in part the fluid flow of said flow stream into said inlet port.