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GEOCHECK VERSION 2.1 <br /> SUMMARY <br /> PUBLIC WATER SUPPLY SYSTEM INFORMATION <br /> NO WELLS FOUND <br /> USGS TOPOGRAPHIC MAP(S) <br /> 37121-G3 LATHROP,CA <br /> 37121-G4 UNION ISLAND,CA <br /> AREA RADON INFORMATION <br /> Federal Area Radon Information for Zip Code: 95206 <br /> Number of sites tested: 1 <br /> Area Average Activity %<4 pCi/L %4-20 pCi/L %>20 pCi/L <br /> Living Area-1 st Floor Not Reported Not Reported Not Reported Not Reported <br /> Living Area-2nd Floor Not Reported Not Reported Not Reported Not Reported <br /> Basement 2.300 pCi/L 100% 0% 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-1 st 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 /> TC5963513.4w Page 2 of 2 <br />