This from Drew Gresik:

Argonne National Lab FD received their new ambulance. Ambulance 115 should be a 2012-13 Ford F-450/Wheeled Coach Type I Ambulance. Here’s a shot of by Dylan Gresik it in service at the Lyons Box.
Drew Gresik
Wheeled Coach Type I ambulance

Ambulance 115 from the Argonne National Laboratory Fire Department. Dylan Gresik photo