Garbage Collection
From Junkyard Truck Wiki - Official
Garbage collection is a repeatable early game mission. Garbage bags spawn regularly around the residential area and can be picked up by the player and transported to the Dump north of of the residential area. To collect money, place the garbage bags into the orange container and speak with Don McGee.
Collecting and delivering garbage bags can be done with the car or even the golf cart, making it a reliable mission if you run out of money and have a broken truck.