Cranston Cranberry Cooperative (CCC) processes cranberries that are harvested in the local area. Barrels of cranberries arrive on trucks to CCC's facility at a rate of 150 barrels per hour and are processed continuously at a rate of 100 barrels per hour. Trucks arrive at a uniform rate over 8 hours, from 6:00 a.m. until 2:00 p.m. What is the maximum number of barrels of cranberries that are waiting on the trucks at any given time?