Wahkiakum County
Local NEHA certified Radon Measurement Specialists
Certified Radon Inspectors
NEHA Certified Radon Measurement Specialists
| Company | Inspector | Phone | City | County |
| Justice Property Inspections | Greg Justice | (888) 414-4107 | Rainer | Columbia |
| Xavier Environmental Inc | Mark Norbury | (503) 236-3796 | Sherwood | Washington |
| Certified Site Inspections & Radon Services | Gayla Smith | (503) 936-2545 | Tigard | Washington |