This 1979 cement foundation home in Guilford had a radon level of 10 pCi/L, prompting the installation of a two-pipe system to safely mitigate radon levels. The home has no crawl spaces, but includes two open additions and a sealed sump pump (23x21 inches) that was covered as part of the job.   Due to the layout and piping near the rear corner of the house, the system was routed to exit through the middle of the home on the left side, ensuring optimal performance without interfering with existing plumbing.