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GEOCHECK®- 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 pCIIL <br /> Zone 2 indoor average level—2 pCi/L and<=4 pCi/L <br /> Zone 3 indoor average level<2 pCdL <br /> SAN JOAQUIN COUNTY,CA - - <br /> Number of sites tested 20 <br /> Area Average Activity %<4 pCi/L %c 4-20 pCi/L %X20 pCdL <br /> Living Area-1st Floor 2 530 pCdL 90% 10% 0% <br /> Living Area-2nd Floor Not Reported Not Reported Not Reported Not Reported <br /> Basement 2 050 pCdL 100% 0% 0% <br /> • <br /> TC630504 2s Page A-21 <br />