Inside the Town of Herndon, the lateral from a house, duplex or townhouse has two keepers. Town Code has the owner keep it sound out to the right-of-way or easement line, and the Town takes structural failures from there to its main; that’s what the fifty cents a quarter on the sewer bill pays for. So a camera’s best work here is placing the trouble on one side of that line: a broken pipe past it is the Town’s to repair, while a root ball or a clog anywhere along the run stays yours to clear.
Most homes in the town went up in the 1970s and 80s, and only about 1 in 25 predates 1960. In Chandon, the town’s 1960s neighborhood, and in the 1970s streets of Four Seasons and Cavalier Park, a lateral may be cast iron, clay or early plastic, and one from the 1960s can still be Orangeburg, a fiber pipe soaked in tar that slumps out of round with age. By the 1980s, in Potomac Fairways or Barker Hill, plastic had mostly taken over.
Town Code gives a condo building its whole lateral, right out to the main, so a camera down it is the association’s call. The same goes in McNair along Sunrise Valley Drive, where about 6 in 10 homes are in condo and apartment buildings and three in four are rented: start with the management office.
Across the town line there’s no split. In Franklin Farm, Floris, Dranesville and Fox Mill Estates, Fairfax County leaves the owner the whole run, connection to the county sewer and all, and replacing it takes a county plumbing permit, plus a VDOT permit under a state road. Most of those houses are from the 1980s and 90s, usually on PVC; Fox Mill Estates is older, mostly late 1970s. If a plumber cuts roots out of your lateral there, the county asks for a call to its 24-hour line so it can clean its main too.