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ncelc tem <br /> Environmental Labs <br /> 4946 watt Avenue, #38 <br /> North Highlands, CA 95660 ° <br /> (916)334-8661 <br /> Attention Mr Dave Diem BTEX Analyzed- 7-23-94 <br />' GEOCON <br /> 11333 Sunco Drive, Suite 100 <br /> Rancho Cordova, Ca 95742 <br /> Project- 58080-06-OIC <br /> Matrix Soil <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 88% 96% 95% 95% <br /> Matrix Spike 86% 92% 91% 92% <br /> Duplicate <br /> ppm = parts per million = mg/Kg = milligram per kilogram <br />' ND = Not detected Compound(s)may be present at concentrations below the reporting limit <br /> All surrogate re emenes were wdhm 30%or target values. <br /> Spikes&Spdte Dupleeates vett a vAh spiked with 250 reg HIM standard. <br /> 1 ANALYI><CAL PRO[ +MURES <br /> IM01--Benzene,toluene,ethylbertzene,and total xylene isomers(BTEX)are measured by extraction using EPA Method 5030 followed <br /> by analysis using EPA Method 8020 which utilizes a gas chromatograph (GC)equipped with a phototonizatron detector(PID) <br /> 7-23-94 <br /> ratory Representative Date Reported <br /> EXCELCIIEM ENVIRONMEN FAL LA13S IS CERTIFIED BY THE SPATE OF CALIFORNIA <br /> DEPARTMENT OF I1EA1 TII SERVICES AS A HAZARDOUS WASLE TESI ING LABORATORY <br />' (Certification No 1760) <br />