4220Utility Project Construction

civil engineering construction for long-distance pipelines, power and communication networks; | civil engineering construction for inner-city pipelines, communication networks, and power sources; | civil engineering construction for water networks; | civil engineering construction for irrigation network systems (canals); | civil engineering construction for reservoirs; | construction of wastewater network systems or drainage networks, including repairs; | construction of waste disposal structures; | construction of pumping stations; | construction of power plants; | construction of well drilling.