what is sewer work
Water that is used in a home or industry is flushed through a building's pipes until it reaches local sewers which are owned and operated by city and town sewer departments. These 5,100 miles of local sewers transport the wastewater into 227 miles of MWRA interceptor sewers. The interceptor sewers, ranging from 8 inches to 11 feet in diameter, carry the region's wastewater to two MWRA treatment plants. Though most of the wastewater flows by gravity some low-lying areas require pumping.