The flexible framing arrangement of the Portadam temporary containment basin allows for easy assembly, without extensive grading or surface preparation. This innovative design permits installation in almost any configuration with provision for thru-wall piping to accomodate inflow /outflow requirements. Portadam's system can be utilized for plant shutdown / maintenance, potable water storage, settling basin for dewatering or dredging operations, temporary set for film crews with water scences, emergency fire fighting water storage and many other potential applications. Basin capacities range from 1000 to several million gallons with retention up to 10 feet high.