Updating EPA Radon Map Posted by ramdino October 6, 2009 - 04:39 AM Post New Forum Thread ramdino ramdino What does it take to get the EPA radon map changed? I have levels in my county that testing labs as well as my data indicated are well over 4.0 yet the EPA map shows 2-4.Ren Ramsey Radon Reduction LLC. Categories Radon Map government EPA Your Rating Select ratingGive Updating EPA Radon Map 1/5Give Updating EPA Radon Map 2/5Give Updating EPA Radon Map 3/5Give Updating EPA Radon Map 4/5Give Updating EPA Radon Map 5/5Cancel rating Average: 1 (1 vote) Rate