(Cottage Grove, OR) -- A piece of railroad equipment punctured a tank causing a 12-hundred gallon diesel spill in Cottage Grove on Tuesday. The train didn't derail and no waterways are affected. The spill happened near South 6th Avenue and Highway 99 in Cottage Grove, just southwest of Bohemia Park. Crews will excavate and remove diesel-contaminated soil. The train is operated by Central Oregon & Pacific Railroad which is paying for the clean up. Oregon DEQ is overseeing the operation.