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GEOCHECK®- PHYSICAL SETTING SOURCE MAP FINDINGS <br /> RADON <br /> AREA RADON INFORMATION <br /> State Database:CA Radon <br /> Radon Test Results <br /> Zipcode Num Tests >4 pCi/L <br /> 95304 4 0 <br /> Federal EPA Radon Zone for SAN JOAQUIN County: 3 <br /> Note:Zone 1 indoor average level>4 pCi/L. <br /> Zone 2 indoor average level—2 pCi/L 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 %>20 pCi/L <br /> Living Area-1st Floor 2.530 pCi/L 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 /> TC5617267.2s Page A-21 <br />