Applicant's underground storm-pod structure is directed to a system for collecting and utilizing storm-water. A pod structure includes at least one pod member. This pod member's structure is defined by sidewall members, end flanges, sidewall interfacing members, an upper section base member, reinforcing members, and a slab member. The sidewall member and the end flange form an opening. A retention chamber formed within the pod member is structured to store liquid. Weep holes formed through the sidewall members permit liquid to flow between a partially-elliptically-shaped pathway and a corresponding chamber. The liquid retention chamber can be in further communication with an outlet mechanism, which is itself in communication with an external environment. In one embodiment, adjacent pod members are fixedly coupled with respect to each other by coupling corresponding flange members.