Abstract: An overpack salvage drum including a drum body and a lid. A bottom wall and side wall of the drum body cooperate to define an interior of the drum body. The lid is configured to close an open top of the drum body. The lid includes at least two independent lid threads to engage with corresponding independent drum threads provided on the drum body. The lid includes a plurality of alternating castellations having a flat inner facing side and castellations having an arcuate inner facing side, which can be interdigitated with castellations on another lid when two lids are stacked together, or can be used to lock with a drum body to rotationally secure a drum body relative to the lid when in a stacked arrangement. The lids include lugs and recesses, or rings that allow for secure stacking of the lids.

Abstract: An underground water-storage system that includes a sump having a base and sidewalls that cooperate to define an open-topped box that defines a reservoir, a plurality of plastic water matrices each defining a void space for receiving water, and a lid. The sump and lid are formed of a reinforced geomembrane material and include welds and are prefabricated in a location remote from an installation site of the underground water-storage vault more than two days prior to installation.

Abstract: Methods for protecting a ground surface from exposure to material that may be spilled from or leak from one or more containers, which includes setting up a portable spill containment system that includes at least one grate for supporting the one or more containers. The grate includes a plurality of drain holes. The portable spill containment system includes a flexible bag configured to contain spills or leakage from the one or more containers that pass through the drain holes of the grate. In one embodiment, the portable spill containment system includes a plurality of pedestals that support the at least one grate. In another embodiment, the portable spill containment system includes an interconnected grid structure formed of separate and distinct spaced apart beams.

Abstract: An overpack salvage drum including a drum body and a lid. A bottom wall and side wall of the drum body cooperate to define an interior of the drum body. The lid is configured to close an open top of the drum body. The lid includes at least two independent lid threads to engage with corresponding independent drum threads provided on the drum body. The lid includes a plurality of alternating castellations having a flat inner facing side and castellations having an arcuate inner facing side, which can be interdigitated with castellations on another lid when two lids are stacked together, or can be used to lock with a drum body to rotationally secure a drum body relative to the lid when in a stacked arrangement. The lids include lugs and recesses, or rings that allow for secure stacking of the lids.

Abstract: An underground water-storage system that includes a sump having a base and sidewalls that cooperate to define an open-topped box that defines a reservoir, a plurality of plastic water matrices each defining a void space for receiving water, and a lid. The sump and lid are formed of a reinforced geomembrane material and include welds and are prefabricated in a location remote from an installation site of the underground water-storage vault more than two days prior to installation.

Abstract: Methods for protecting a ground surface from exposure to material that may be spilled from or leak from one or more containers, which includes setting up a portable spill containment system that includes at least one grate for supporting the one or more containers. The grate includes a plurality of drain holes. The portable spill containment system includes a flexible bag configured to contain spills or leakage from the one or more containers that pass through the drain holes of the grate. In one embodiment, the portable spill containment system includes a plurality of pedestals that support the at least one grate. In another embodiment, the portable spill containment system includes an interconnected grid structure formed of separate and distinct spaced apart beams.

Abstract: A portable spill containment system that includes at least one grate that supports a container. The grate includes a plurality of drain holes. The portable spill containment system also includes a flexible bag that contains leakage from the container that passes through the drain holes of the grate. The portable spill containment system also includes a plurality of pedestals that support the at least one grate.

Abstract: A portable spill containment system that includes at least one grate that supports a container. The grate includes a plurality of drain holes. The portable spill containment system also includes a flexible bag that contains leakage from the container that passes through the drain holes of the grate. The portable spill containment system also includes a plurality of pedestals that support the at least one grate.

Abstract: A spill containment assembly includes a support structure or grate, and a flexible containment bag disposed beneath, and secured to, the grate. Fluid filled containers are placed on the grate. The bag defines an available containment volume sufficient to retain a quantity of liquid stored within the containers supported by the grate.

Abstract: A spill containment assembly includes a support structure or grate, and a flexible containment bag disposed beneath, and secured to, the grate. Fluid filled containers are placed on the grate. The bag defines an available containment volume sufficient to retain a quantity of liquid stored within the containers supported by the grate.

Abstract: A spill containment assembly includes a support structure or grate, and a flexible containment bag disposed beneath, and secured to, the grate. Fluid filled containers are placed on the grate. The bag defines an available containment volume sufficient to retain a quantity of liquid stored within the containers supported by the grate.

Abstract: A spill containment assembly includes a support structure or grate, and a flexible containment bag disposed beneath, and secured to, the grate. Fluid filled containers are placed on the grate. The bag defines an available containment volume sufficient to retain a quantity of liquid stored within the containers supported by the grate.