Napa Sanitation District to repair an essential sewage-carrying pipe
Napa Sanitation District is planning a $15 million project to rehabilitate a deteriorating pipe that carries 90 percent of local sewage to the wastewater treatment plant and has no backup. … The half-century-old, 66-inch-diameter concrete pipe transports raw sewage three miles from the city of Napa to the wastewater treatment plant near the airport industrial area. A district report calls it the “backbone” of the sewer system.