37 Demolition of buildings; excavation; construction of protective excavation shoring; foundation contractor services; concrete forming and construction of protective concrete shoring for buildings and other commercial or public concrete structures; construction grading; building decommissioning, namely, building demolition; environmental decommissioning, namely, environmental building demolition; renovation and restoration of buildings; hydrovac excavation services; horizontal directional drilling services for construction, installation, repair and maintenance of underground utilities, including water lines, sewer lines, gas lines and cable lines; civil construction in the field of municipal infrastructure, namely, construction of civil engineering structures in the nature of roads, railroads, bridges, pipelines, public squares, parks, water supply and treatment plants, sewage treatment plants, electrical grid, and dams; construction, installation, repair and maintenance of underground utilities, including water lines, sewer lines, gas lines and cable lines; construction services, namely, paving, site clearing, excavation and grading; asbestos removal; drain and sewer cleaning and rootering services; waste clean-up services; hazardous waste clean-up services; hazardous waste sterilization; soil erosion control services; dredging services; road and bridge construction; construction project management; rental of earth moving equipment; solid waste landfill services; providing information in the fields of building demolition, excavation and construction; providing information in the field of hazardous waste clean-up services; industrial toxic waste disposal, namely, waste cleaning services