37 Water, natural gas and petrochemical pipeline construction and repair; Water, natural gas and petrochemical pipeline repair by rehabilitation of a pipe through the relining of the pipe; construction, repair and maintenance of pipeline compressor, pumping, meter and regulator stations and water, natural gas and petrochemical pipelines; construction, repair and maintenance of water, natural gas and petrochemical pipeline storage facilities; construction, repair and maintenance of water, natural gas and petrochemical pipeline gathering systems; sewer construction, repair and maintenance; water and gas main construction, repair and maintenance; tunnel construction and repair; construction, repair and maintenance of natural gas distribution systems and underground and above ground installation and repair of pipelines and mains; drilling of tunnels, wells, oil and gas reservoirs, and water wells; drilling for the placement of pipes, lines, conduits and cables, horizontal directional drilling for the placement of pipes, lines, conduits and cables; construction, repair and maintenance of electric and power utility systems, transmission lines, distribution systems, and substations; Construction of underground utility systems and underground and above ground installation and repair of conduits, cables, lines, pipelines, poles and associated foundations; construction of wind turbines and wind energy systems; construction of earth retention services; construction of foundation systems and sheet pilings; construction or telecommunications systems, namely, tower construction and underground and above ground installation, repair and maintenance of conduits, cables and pipelines; road construction, repair and maintenance; airport construction, repair and maintenance; bridge construction, repair and maintenance; construction grading; road paving; construction dewatering, namely, removal of surface and ground water to facilitate construction; design and construction of foundations for civil construction projects; quarry services and mining extraction; stone crushing services; and by-pass plumbing