A septic system receives, treats and disposes of unwanted wastewater and solids from a building's plumbing system. Solids are partially broken down into sludge within a septic tank and are separated from effluent (water) and scum (fat, oil and grease).
Radon is a gas that we can't see, smell, or taste. It is caused by the breakdown of uranium in the ground. When radon builds up over time, it can be a health risk. The only way to know if radon is an issue in your home is to have it tested.