Maximize storage volume using a smaller footprint with the NDS StormChamber® system. This stormwater management powerhouse features an open bottom, arch-shaped chamber that allows it to work in both permeable and non-permeable soils to ensure the stormwater best management practices (BMPs) work at the highest removal rate possible. This modular subsurface drainage chamber can be configured in rows and also layered to meet job site requirements. The 41 in. high unit features a minimum installed storage of 224 cubic feet and internal chamber volume of 98 cubic feet. The closed unit can be used on its own; to increase storage, additional units can be interconnected with pipe from side portals. StormChamber units are made of thermoformed high-density weight polyethylene, engineered to withstand extreme environments, exceeds the AASHTO H-20 design load, and allow for deeper cover than other systems. Use included SedimenTrap™ devices to capture sediments and help extend the lifespan of the system.