They mix their own at Woodside, if its a decent job the airstrips close by open, like Cherry that use SES and the local CFS. Mt Compass, local CFS, and Athelstone go anywhere they are needed. There are many others around.
I guess this is CFS's way of recognising they are going to struggle to get enough ground crews there, gone are the days of having every truck loaded to the brim with crew.