Abstract: A modular containment system for forming a defined perimeter around liquid storage tanks or the like. The containment system generally includes a plurality of wall panels, a corner joint removably connecting adjacent corner wall panels in angular disposition, wherein the corner joint includes an anchor pad for placement beneath and for being connected to the corner wall panels, and a support unit comprised of a gusset and anchor pad for connecting and supporting the wall panels along a straight line. The wall panels, corner joint, and support unit are each preferably comprised of an integral one-piece structure and a galvanized steel material. The wall panels, corner joint, and support unit are removably connected via interlocking wedges. A liner is generally secured along an interior of the wall panels via a retaining cap. Various braces and brackets are also used to removably connect the components of the containment barrier.

Abstract: A modular containment system for forming a defined perimeter around liquid storage tanks or the like. The containment system generally includes a plurality of wall panels, a corner joint removably connecting adjacent corner wall panels in angular disposition, wherein the corner joint includes an anchor pad for placement beneath and for being connected to the corner wall panels, and a support unit comprised of a gusset and anchor pad for connecting and supporting the wall panels along a straight line. The wall panels, corner joint, and support unit are each preferably comprised of an integral one-piece structure and a galvanized steel material. The wall panels, corner joint, and support unit are removably connected via interlocking wedges. A liner is generally secured along an interior of the wall panels via a retaining cap. Various braces and brackets are also used to removably connect the components of the containment barrier.