Radon Mitigation Systems in Lewis Center, OH

Radon Mitigation Systems in Lewis Center involves sub-slab depressurization with an inline radon fan, sealed slab penetrations, and an exterior discharge stack above the eave line, working on the slab-to-soil interface and any below-grade openings where soil gas enters the home. The service is the standard installation for any Columbus home testing above the EPA action level of 4.0 pCi/L on a 90-day or annual long-term average.

Lewis Center's stock is almost entirely post-1995 subdivision construction along the US 23 corridor, built to the radon-resistant new construction code with a passive vent stack run to the roof. Activating that stack with a fan is the typical fix here rather than a ground-up sub-slab system. The glacial till under Delaware County's EPA Zone 1 designation means the passive stack alone is frequently not enough on its own. Lewis Center sits along the Olentangy River corridor that has driven the US 23 growth strip north from Columbus, on the flat glacial till plain typical of Delaware County. Lewis Center sits on geology that drives elevated regional radon exposure across the Columbus metro, including Delaware County.

Delaware County's glacial till keeps the whole county in EPA Zone 1 regardless of foundation age, but the install itself differs: the historic limestone-and-block stock near downtown Delaware and Ohio Wesleyan needs a more deliberate seal at the foundation wall, while the US 23 growth corridor through Powell and Lewis Center offers ready sump pits for a single-point install.

Mitigation systems installed in Ohio must meet ANSI/AARST CCAH-2020-0523 for existing dwellings and be installed by a contractor licensed under ORC 3723.02 (Ohio Department of Health Radon Licensing Program). The Ohio Department of Health Radon Licensing Program oversees radon program compliance for Lewis Center, and Ohio licensure under ORC 3723.02 applies to any contractor performing mitigation work in the state.