Why do I need radon testing?
The E.P.A. recommends that if you are buying or selling a home, it should be tested for radon—a naturally occurring radioactive gas found in rock and soil that cannot be seen, smelled or tasted. This State of New York map indicates high radon counties and provides other radon education, including a pdf guide to radon issues. InterNACHI, the home inspection training organization I am affiliated with, has an extensive radon fact sheet as well.
Do I need a water test?
Census data cited by the E.P.A. says that more than 15 million U.S. households rely on private wells for drinking water. Such wells are not regulated, so testing is recommended to identify any contaminants and insure the safety of the home water supply. The E.P.A. provides consumer information about maintaining a safe well at this link. The InterNACHI home inspection organization’s fact sheet on private wells and water safety is here.