Abstract: An above-ground secondary containment dispensing system for a primary tank holding liquids. The system includes a 10,000 gallon primary tank and a secondary containment unit which includes a dike surrounding the tank. In the preferred embodiment, the dike is a right parallepiped having an open top and a floor. Preferably, the dike is provided with internal support means to support the tank above the floor of the dike and an external support means to support the dike above the ground to enable the entire unit to be moved easily. A loading platform is mounted adjacent to the tank and includes both glycol and water loading arms. In the preferred embodiment, a single pump is used for both tank off-loading and to issue product to the de-icing units. Preferably, a level detector mounted in the tank is operatively associated with the pump to disable the pump when the tank is full and/or to provide an indication to a user when the tank is full.