9a. Was the radon level from that test above or below the EPA radon guidelines of 4 picocuries (pi-ko-kurees) per liter?
Read if necessary: What was the radon level from the last test BEFORE any corrective action was taken?
1 [] Above the EPA guideline (9b)
2 [] At or below the EPA guideline (Part YB)
6 [] DK results yet (Part YB)
9 [] DK level (Part YB)