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EX ELCHEM <br /> ENVIRONMENTAL LASS <br /> 500 Giuseppe Court, Suite 9 <br />' Roseville, CA 95678 <br /> Phone# (916) 773-3664 Fax# (916) 773-4784 <br /> OA/OC REPORT <br /> Attention: Mr. John Juhrend BTEX Analyzed: 05--10-95 <br />' GEOCON Matrix: Soil <br /> 3235 Sunrise Blvd. , #6 <br /> Rancho Cordova, CA 95742 <br />' Project: S8100-06-11A <br />' Ethyl- Total <br /> Benzene Toluene benzene Xylenes <br /> PPM PPM PPM PPM <br /> Reporting Limit: 0 .005 0 . 005 0 .005 0.005 <br /> QA/QC PARAMETER <br /> Matrix Blank ND ND ND ND <br /> PERCENT RECOVERIES <br />' Matrix Spike 107% 107% 1.070 108% <br /> Matrix Spike 105% 105% 105% 107% <br /> 1 Duplicate <br /> Ppm . parts par million - mg/!Kg - milligram per kilogram <br />' ND Mot detested Compound's) may be press.*- at concentrations bolow the reporting limit. <br /> All surrogate recoveries Ware within 30% or target values. <br /> Spikes S Spice Duplicates were o '% spiked with 25o ng BTEX standard. <br /> AXALVTtCAI. P2ocEuU9ES <br /> >3?SZ-- senseno, toluene, ethylbansene, and total xylene isomers (STEX) aro measured by extraction using EPA <br /> - Nothod 3030 followed by analysis using P.PA Nethod 8020 Which utilises a gas chromatograph (GC) aguippod with <br /> a photoionisation detector (PID) <br /> ° 05-10-95 <br /> Labo atory Representative Date Reported <br /> EXCELCHEN ENVIRONMENTAL LAGS IS CERTIPIED BY TEE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Cart1fication No 1750) <br />