Another style of unit train is a local trash train, D765, that runs between the Maryland towns of Derwood and Dickerson. The train runs daily except on Sundays; on holidays it sometimes runs twice a day. Trash is carried from Montgomery County's Shady Grove Transfer Station to a waste-to-energy plant located off the PEPCO lead to Mirant's Dickerson Generating Station. The trip is roughly , and the train is made up of National Steel Car Company-built well cars, hauling containers. The first NEMX equipment was built when the D765 first started operations in 1995. In recent years, the fleet has been somewhat upgraded, repainted, and new cars have been constructed. In the early days, the locomotives powering the train were a GP40-2/RDMT slug set, but currently the train can be upwards of 47 cars. The locomotives that now routinely power the train are a pair of GE AC4400CWs, though GEVOs may also be used.