True or False: Sumps and groundwater draining systems can be entry points for radon.

Sumps and groundwater draining systems can indeed serve as entry points for radon gas. Radon is a naturally occurring radioactive gas that emanates from the decay of uranium in soil and rock. When groundwater moves through uranium-rich materials, it can dissolve radon, which may then be transported to the surface through groundwater systems.

Sumps, which are designed to collect and remove excess water that accumulates in basements or drainage systems, can inadvertently allow radon gas to enter living spaces. If radon levels are elevated in the soil surrounding the sump, the gas can migrate into the building through these systems.

Additionally, because radon is a gas, it can easily move through soil and enter homes through any openings, including those related to sump systems and groundwater drainage. This is true regardless of whether the systems are being well maintained or not, as radon can enter through poor sealing or existing pathways.

Thus, the statement is correct; these systems can indeed allow radon to infiltrate buildings, contributing to indoor air quality issues.