120 m3 = +/_ 800 barrelsThey are now testing for 2 months . If they have emtied the thank once is could be 1600 barrel in 60 days; that makes 27 barrels a day. If they did this twice it could be 40 barrels and if a trippel of times 50 barrels. But that's the question: how manny times a truck passed by?