Washington Radon Information
Washington Radon Program:Radon Website: Website
Radon Contact: Mike Brennan
Active Radon Program: Yes
Require License for Radon Professionals: No
Washington Radon Levels
EPA Radon Levels
Washington has 39 counties and 7 (18%) have been assigned Zone 1 counties by the EPA. Zone 1 counties have the highest potential to have homes test higher than 4 pCi/L. Washington's state radon zone average is 2.28, which is the average of all county zone ratings the EPA has assigned the state, ranking it 35 among all states.
The radon levels in Washington are above average in most areas of the state. That being said, there is an increased risk for all homeowners, which is why we recommend testing exposure levels at least twice a year.
Washington Radon Mitigation and Testing
Need your home tested for radon? Already know you have high levels and need a radon reduction system installed? Finding qualified Radon professionals can be difficult, but we've put together a list of Washington contractors to help you save time.
Washington Radon Mitigation
We have compiled a list of qualified radon mitigation contractors.
Find Radon Mitigation Contractors here
Washington Radon Testing
Need your home or office tested for Radon? We have compiled a list of qualified radon testing contractors.
Find Radon Testing Contractors here
Washington Radon Contractor License Information
Does Washington require contractors to be licensed? No.
What are the licensing requirements? There are no state mandated requirements to become a licensed radon contractor in Washington. Those looking for a radon certification can take qualified third party courses that are offered through the NRPP or AARST.
Washington Radon Real Estate Requirements
Does the state of Washington require radon testing for all real estate transactions? No
However both the state of Washington and the EPA recommend that a home or residence should be tested before a real estate transaction is carried out. Even though Washington does not require radon testing, we certainly recommend you have a test performed before you purchase a home. If you decide to perform a test after and find elevated levels, there is no reason to panic. Washington radon mitigation is not expensive compared to the dangers and a system can be implemented in a relatively short period of time.
Washington Radon Map
Zone 1 (1): Potential for radon levels above 4 pCi/L according to EPA
Zone 2 (2): Potential for radon levels between 2 pCi/L and 4 pCi/L according to the EPA
Zone 3 (3): Lowest EPA level with expected radon levels at or below 2 pCi/L
Disclaimer: It is strongly recommended that all households, schools and office spaces test radon levels individually. The EPA Radon Zone data is not an indicator of individual test results, but a guideline for strategic planning. Toxic radon levels can be found in all counties, regardless of their zone rating. While we make efforts to keep this information up to date, it is derived from thirdparty sources which may not be accurate or reflect the most current statistics.
Washington is the 18th most expansive state in terms of size and the 13th most populous.
Washington does have an active radon program, dedicated to educating citizens about the risks associated with the deadly gas. You can find more information on Radon, testing and mitigation at the official page.