Patent ID: 8158010

Claim:
A method for removing contaminated water from an underground containment in an environmentally safe manner comprising: providing a porous supporting structure defining a volume therein and having opposing open ends; coextensively coupling a filter sleeve to the outer surface of the porous supporting structure to define an enclosure, the filter sleeve having a weighted pocket portion; submerging the enclosure into the contaminated waste water present within the underground containment; gravimetrically sealing one of the opposing open ends of the enclosure to a bottom surface of the underground containment using the weighted pocket portion, such that the volume is sealed off and separated from the rest of the underground containment having contaminated water therein by the enclosure; pumping water from within the volume out of the underground containment, thereby causing contaminated water to flow through the filter sleeve and porous supporting structure into the volume producing treated water; and discharging the treated water directly into an ambient environment while retaining the contaminants within the filter sleeve.