Patent ID: 7100632

Claim:
A sump liner comprising: a) a base member; b) a liner wall comprising a proximal end and a distal end, the proximal end joined with the base member; c) the liner wall joined with and extending about the periphery of the base member, the liner wall and the base member defining a sump liner interior therein; d) the liner wall comprising an inside surface and an outside surface; e) a weir, the weir positioned in the sump liner interior, the weir comprising an inverted V-shape and divides the sump liner interior into a primary reservoir and an adjacent secondary reservoir; and f) wherein the liner wall further comprises a primary reservoir portion and an impermeable secondary reservoir portion, the primary reservoir portion of the liner wall defining a cutout for allowing groundwater to flow through and enter the primary reservoir, the weir for controlling the flow of water into the secondary reservoir.