Members of B-shift and C-shift were dispatched for a possible structure fire in a warehouse on Meridian Place. Upon arrival units found moderate smoke conditions throughout the warehouse and the fire was extinguished prior to FD arrival. The fire had been a plastic cart and was extinguished by fire extinguishers. Crews on-scene ventilated the building using PPFD 1367 ventilation unit. C-375, E-351, E-352, L-360, S-365, PPFD 1360 and 1367 all responded to this incident.