37 The provision of electric utility support services, namely, transformer maintenance, cleaning of transformer and restoration of transformers; industrial cleaning services for industrial facilities and other commercial locations, namely, hydroblasting, vacuum and chemical cleaning services and pressure washing; cleaning of storage tanks and piping; cleaning of hazardous material spills and dumping at industrial facilities, commercial and residential sites, on highways, on railroads and on waterways; cleaning of oil spills on the Mississippi River and other waterways, at industrial facilities, commercial and residential sites, from pipelines and other sources; cleaning of contaminants found in soil or the surrounding water sources; demolition and dismantling of industrial building facilities