This equipment includes, but is not limited to: Thermal Oxidizers, Vapor Combustors, Catalytic Oxidizers, Liquid VOC Scrubbers, Pumps, Motors, Valves, Actuators, and Transmitters, Emission Monitoring Equipment, Recorders, and Programmable Logic Controllers (PLC). HPC-Industrial , powered by Clean Harbors, is the premier industrial cleaning and environmental services company in North America supporting the upstream, downstream, and utility sectors.