This system allows compliance with regulations while storing IBC tanks outside. the upper roll-top door and lower swing-out doors combine to allow easy and convenient access to IBC. The unit safely stores an IBC tank with maximum dimensions of 52” x 52” x 61”. The low profile (28” height), 360 gallon containment sump allows safe material handling and dispensing. The forkliftable, lockable, all-polyethylene design will not rust or corrode. Helps meet new Stormwater Management Regulations- NPDES, 40 CFR 122.26 (1999). this unit also meets EPA Container Storage Regulation 40 CFR 264.175.