37
Underwater building and construction, namely, waterblasting, blasting, jetting, and clearing; maintenance, repair, and inspection 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 flowlines; underwater installation of connectors for pipelines, risers, and flowlines; Installation and maintenance of oil and gas drilling and production platforms; installation of subsea guying; subsea anchor pile installations; installation of concrete oil production, storage, and utility systems; Onshore and offshore spill response and hazardous and toxic waste environmental remediation, namely, site remediation by waste disposal; emergency spill response containment, collection, and disposal; oil-based mud recovery; asbestos removal; Underwater maintenance, repair, and inspection of bridges, docks, piers, and pipelines; maintenance and inspection of hydroelectric and nuclear power plants
39
Salvage diving; Inland diving services for industrial and government customers
40
Underwater welding and burning, environmental bioremediation services by soil, waste and/or water treatment services