He claimed this could be achieved by replacing a sizable detention basin on lots 2 and 3 with a number of "Vortex" systems, each of which is a multi-chambered plastic unit that combines sedimentation, oil and grease separation, and physical and 
(Vortex" systems; is; a multi-chambered plastic unit that combines sedimentation, oil and grease separation, and physical) (a multi-chambered plastic unit; combines; sedimentation, oil and grease separation, and physical) (He; claimed; this could be achieved by replacing a sizable detention basin on lots 2 and 3 with a number of "Vortex" systems) Context(He claimed,List([0, 10))):(this; could be achieved; )
He claimed,List([0, 10))
Vortex" systems a multi-chambered plastic unit He this
is combines claimed could be achieved
a multi-chambered plastic unit that combines sedimentation, oil and grease separation, and physical
sedimentation, oil and grease separation, and physical
this could be achieved by replacing a sizable detention basin on lots 2 and 3 with a number of "Vortex" systems