State Radon Officer

Mike Brennan
(360) 236-3253
Division of Radiation Protection
PO BOX 47827
Olympia WA, 98504-7825

About Radon Levels
in Walla Walla County

The average national indoor radon level is 1.3 pCi/L. (What is a picocurie?)
The average indoor radon levels of Walla Walla County, as determined by radon test results from Air Chek, Inc, is 6.3 pCi/L

Radon Risk chart for Walla Walla County

   Results under 2 pCi/L

   Results between 2 and 3.9 pCi/L

   Results 4 pCi/L and above

Additional information about radon levels in Walla Walla County may be available through this website