A water containment apparatus includes a straight strut arrangement comprising a plurality of straight strut assemblies forming an alternating v-shape and inverted v-shape pattern; and a curved strut arrangement comprising a plurality of corner strut assemblies forming a desired curvature and connecting two straight strut arrangements to form a closed loop water containment system.

A liquid containment structure such as a frac pond has a perimeter wall; a floor liner bounded by the perimeter wall; and a platform underneath the floor liner, the platform formed of a plurality of mats laid edge to edge and whose upper faces collectively define a support surface. Related methods are disclosed.

A movable reusable frame-like structure for supporting, containing and protecting a flexible fluid containment vessel for use in hydraulic fracturing operations to store fluids, said structure having a base frame carrying plural vertical supports, the plural vertical supports interconnected by plural support straps to define a volume above the base frame carrying a secondary containment, and a flexible fluid containment vessel within the secondary containment.

A bulk material transport system includes one or more bulk material transport bins, weighing platforms, and vehicles arranged in various combinations as bulk material transporters, assemblies, and units. The system is useful for coupling with a bulk material container, forming a reduced pressure region at an inlet of the transport bin, and dispensing bulk material into the transport bin through the reduced pressure region.

A dumpster bag has: a flexible bag member including a bottom and a sidewall structure extending upward from the bottom to a rim; at least one rim stay comprising a bungee pole; and at least one corner stay.

An expandable-volume liner is usable with a collapsible liquid holding tank frame consisting of top and bottom rails spaced apart by vertical struts. The expandable-volume liner has pliant impervious side walls, a pliant impervious floor panel and at least one pliant impervious collapsible bag extending outwardly from the liner. Each bag is optionally extendable between its respective surrounding top and bottom rails and adjacent struts to conform the tank to the differing footprints presented by various sites and the volume of liquid necessary to accomplish the task at hand. The liners are especially suited to firefighting applications and can be used in conjunction with existing frames built for non-expandable volume liners.

A fluid storage tank has a base structure, perimeter columns extending upward from the base structure and a flexible bladder contained within the perimeter columns to define a boundary of the tank. The base structure is arranged to be supported on a supporting foundation to span a bottom of the tank. The upright columns are releasably coupled to the base structure and extend upward at circumferentially spaced apart positions about a perimeter of the tank in a working position of the columns. The upright columns are collapsible from the working position to a transport position in which the columns are arranged to be bundled alongside one another. The flexible bladder is coupled to the upright columns and contains a fluid within the tank in the working position while being collapsible within the columns into the transport position.