Lefferts Oil Terminal Inc Tank Farm consists of several multi-modern storage tanks terminals with huge capacity for crude oil and all petroleum products situated in various port terminals in Rotterdam, Rotterdam port. Each cargo batch is stored in separate storage tanks and is not mixed with others. This allows preserving the initial quantity and quality of products. The storage tanks have a computerized metering system, which allows a quick and accurate establishment of quantity of products stored in the tanks. The quality parameters are controlled by the modern laboratory of the Terminal. Floating roofs mounted in light and heavy oil product and crude oil storage tanks reduce evaporation of oil products and environmental pollution.