Profile: Stevens Corporation specializes in landscape design and site construction solutions for architects and builders. Draincore2™ geo-composite drainage and conveyance layer is used for subsurface and green-roof applications. It is a replacement for antiquated french drains. It is a high volume drainage layer capable of withstanding heavy loads in direct contact. It is used in roof deck drainage, planter drainage and sports turf drainage systems. Rainstore3™ is a modular and stackable structure used to store storm water underground. It is made from injection molded plastic, a single panel contains 36 vertical columns and exceeds H-20 loading, allowing the construction of driving areas, parking lots, or other small structures above the system. It is used in underground strom water storage, detention & rentention systems and water harvesting.