Rail transportation of chemicals represents about 12% of freight revenue for the Class I railroad companies, making chemical bulk storage efficiency and safety important factors to the industry. Ferric chloride, a moderately strong acid, is used in water and wastewater treatment applications, as well as metal etching in the copper and steel industries. A common mode of transportation between chemical manufacturer and distributor is by railcar. At this railway terminal, aqueous ferric chloride is stored in bulk tanks, before being loaded on to rail tanker cars for out of state deliveries. EchoSpan ultrasonic level transmitters are installed on each fiberglass bulk storage tank. The non-contact sensors provide continuous level data to the PLC, which in turn, provides inventory management data to the terminal operator, and onsite tank level indication to support the manual filling and emptying process. EchoSpan is reliable ferric chloride level measurement.