Company 5 was alerted at 0013 this morning, on Rescue Local 0580 for an MVC involving a tractor trailer on Route 301 Northbound at Hayden Road. Callers reported a tractor trailer verses a farm tractor. QAC DES Paramedic 400 arrived on location finding conditions as reported and began to evaluate the patients. Engine 52 and Special Unit 59 checked both vehicles for hazards, finding a ruptured saddle tank with 300 gallons of fuel that had contaminated the ground. Kent Island Haz-Mat 1 and Maryland Department of the Environment were dispatched to mitigate the fuel spill. Paramedic 400 transported one patient to a local facility. The scene was turned over to MSP and Route 301 NB remains closed for cleanup.