The purpose of the work is to replace the existing DCS (Forney) and TI PLCs/Sixnet I/O with a County supplied Emerson Ovation Control system (SPCS) for ACC4 process areas and install County supplied UPS unit(s) in ACC4. Demolition work necessary to remove equipment, wire and cable in existing panels that shall be reused as indicated in the design document is to be performed as part of the control system replacement work.