Aero-Flite Canadair CL215, at the Kingman Airport AZ.
Aero-Flite specializes in the aerial suppression of wildland fires using Canadair CL-215 water scooping aircraft. Tactically, their primary strength lies in initial attack--they utilize water sources near a developing fire to quickly knock down the flames and prevent it from spreading into adjacent fuels
The aircraft scoop up to 1,400 gallons of water from a lake or other water source as short as one mile long, and, depending on the distance between the water source and the fire, can deliver as much as 28,000 gallons of water per hour to the fire. In addition, they have the capability of mixing foam concentrate with the water while in flight, enabling them to offer customers the option of dropping foam on the fire.
Canadian Aviation Blog