Company 20 was dispatched for a structure fire at Alvord Polk this evening. Chief 202 and 201 responded with Engine 20 following. Command 20 advised the fire to be confined to a dumpster located next to the structure. Upon arrival firefighters quickly extinguished the fire and ventilated the building. The Tower was then dispatched for the Thermal Imaging Camera to check for any hot spots in the building. Some minor heat damage was done to the structure however the fire never extended to the main building. Units were then placed available.