Abstract: One version of this disclosure includes a subsurface storage system having two components respectively made from a single mold: a panel and a connector. In this version, a first layer of the system includes at least one connector having an identical top side and bottom side where each side may respectively maintain a panel in a specified position when engaged with the panel. A plurality of panels, particularly the bottom edges of the panels, are configured into an engagement with the at least one connector to form a plurality of shapes. A third layer of the system is at least one connector that engages the upper edge of the panels. Additional panels may be positioned on the second layer of connectors. Further, additional panels may be positioned on the second layer of connectors to form another layer of shapes defined by the panels.