Station 3 is staffed by a Captain, Operator and two Firefighters. This station houses the Hazardous Materials Van and other specialized equipment to deal with releases of Hazardous Materials. District 3 is in the south-east section of Sparks, and is the most diverse district in Sparks.
It includes Interstate 80, Railroad, Sparks Marina Park, two elderly care facilities, 7 story hospital, retail stores including Sheels the largest all sports store in the world (275,000 sq ft), water park, a small amount of residential, Truckee river on its southern border and a considerable amount of warehouse and industrial facilities. In addition, Engine 31 has a large automatic aid area to the east which includes more of Interstate 80, more of the Truckee river, as well as other residential and commercial facilities.