Arlington National Cemetery - Sanitary Sewer Line Repair   5

Project Description:This project includes the repair, replacement, rehabilitation, installation or abandonment of existing four-inch (4?),six-inch (6?), eight-inch (8?), ten-inch (10?), and twelve-inch (12?) diameter sanitary sewer piping and associatedmanholes located at Arlington National Cemetery (ANC) and two adjacent areas. The approximate pipe length is9,800 linear feet. Pipe repair work shall consist of clearing debris obstacles, replacing failed sections (point repair) toupsizing pipe segments. After all necessary grouting and replacement of failed pipes and manholes are completed,the entire 9,800 linear feet of pipe and manholes shall be rehabilitated using commercial trenchless technologymethods to extend the useful life of the sanitary sewer system. Manholes, currently buried below existing groundlevel, shall be raised. New manholes shall be installed where existing piping connections have been made without amanhole.This sewer system runs through or is adjacent to some sensitive areas in the cemetery and off of the cemetery property.Some of the sewer goes through the Arlington Woods which is owned by the National Park Service (NPS) and is anold growth forest. Some of it runs along Route 110 close to or in the right of way.