37 Underwater building and construction, namely, water blasting, blasting, jetting for the purpose of cleaning underwater structures, namely, oil and gas drilling and production platforms, pipelines, and wellhead assemblies, and site clearing; maintenance, repair, and inspection in the course of construction of subsea facilities such as oil and gas drilling and production platforms, pipelines, and wellhead assemblies; underwater site clearance and debris removal; underwater repair of pipelines, risers, and flow lines; underwater installation of connectors for pipelines, risers, and flow lines; installation and maintenance of oil and gas drilling and production platforms; installation of subsea guying; subsea anchor pile installations; potable water storage facility inspection in the course of construction, repair, and maintenance with sediment and debris removal; water source intake inspection and cleaning in the course of construction of underwater structures, namely, oil and gas drilling and production platforms, pipelines, and wellhead assemblies; sluice gate installation; onshore and offshore spill response and hazardous and toxic waste environmental remediation, namely, site remediation by waste disposal; sea chest capping and repair; underwater maintenance, repair, and inspection of bridges, docks, piers, dams, and pipelines in the course of construction of the aforementioned structures; sea chest capping and repair, namely, anode retrofit; construction consultation; construction supervision; ship building; construction planning; construction, maintenance and renovation of property; installation of vehicular and pedestrian bridges; building of canal locks; construction and construction management of roads, bridges, foundations, harbors, locks, dams, retaining walls, dewatering systems, slopes, ships, wastewater collection facilities, water treatment plants, water supply and distribution systems' pipelines, refineries, reservoirs, and consultations relating thereto; lock repair services; pile driving services; excavation services; high-pressure jet grouting services; mining extraction; repair and maintenance of ships; repair of water vehicles; building services, namely, the planning and implementation of construction projects; demolition of buildings; rental of construction equipment; commercial building construction, namely, bridges, dams and transportation lines