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GEOCHECKO- PHYSICAL SETTING SOURCE MAP FINDINGS <br /> RADON <br /> AREA RADON INFORMATION <br /> Federal EPA Radon Zone for SAN JOAQUIN County: 3 <br /> Note:Zone 1 Indoor average level>4 PCUL. <br /> Zone 2 Indoor average level>=2 PCUL and<=4 pCi/L. <br /> Zone 3 indoor average level<2 pCi/L. <br /> Federal Area Radon Information for SAN JOAQUIN COUNTY,CA <br /> Number of sites tested:20 <br /> Area Average Activity %<4 pCi/L %4-20 pCi/L %>20P Ci/L <br /> Living Area-1st Floor 2.530 pCUL 90% 10% 0 <br /> Living Area-2nd Floor Not Reported Not Reported Not Reported Not Reported <br /> Basement 2.050 pCi/L 100% 0% 0% <br /> r <br /> TC01477769.1r Page A-12 <br />