Chemical Processing Systems: GSE completed control system specification, CAD design, material selection, PLC and HMI programming for a hot liquid sulfite chemical facility. The facility operation consisted of the fill, mixing, level and flow control of multiple hot sulfite solution concentrations while controlling level, pH, and turbidity online with real-time stamping of process conditions throughout. The Rockwell ControLogix PLC components were monitored with a Wonderware HMI platform for local and enterprise reporting. The control system included the operation, monitoring, and safety control of associated scrubber and water treatment systems.