Patent ID: 7758747

Claim:
A system for removing pollution material such as particulate material and/or dissolved matter from water, the system comprising a pollution removal structure forming an underground chamber having an upper access opening for installation, inspection and maintenance having a openable cover wherein water entering the underground chamber is conveyed through a filter system and the filtered water is discharged through a discharge pipe into the surrounding ground, said system further comprising: a plurality of vertically oriented modular filters having a filter media located within the chamber to filter out particulate material and/or dissolved matter from water passing therethrough, each of said modular filters having an upper inlet and a outlet formed in the modular filters with a passageway therebetween, wherein water can enter each filter laterally through a lateral inlet to pass through the filter media to reach the passageway, the outlet of a filter adapted to interfit into the upper inlet of the next lower filter wherein the outlet of one filter aligns with the upper inlet of another filter to form a common central passageway for water to pass serially though the plurality of filters to the discharge pipe to the surrounding ground, said plurality of vertically oriented modular filters being accessible through the upper access opening so as to be serially, vertically stacked or removed individually through the upper access opening.