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i <br /> Excelchem Environmental Labs j <br /> Ramage Environmental Project: S1 County Courthouse <br /> 465 South Meadows Parkway Suite 20 pmb 48 Project Number NA Date Reported: <br /> Reno,NV 89521 Project Manager. Joe Ramage 09/05/08 15:58 <br /> BTEX/TPHG by PIDIFID-Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units ' Level Result %REC Limits RPD Limit Notes <br /> Batch AR10010-EPA 8021B/8015m <br /> j Blank(AR10010-BLKI) Prepared&Analyzed:09/02/08 <br /> Surrogate_Chlorobenzene 11.0 ug/I 12.5 96.3 70-130 <br /> Gasoline Range Hydrocarbons ND 50.0 <br /> Benzene ND 0.5 ,1 <br /> Toluene ND 0.5 <br /> j 'Ethylbenzene ND 0.5 <br /> Xylenes(total) ND 1.0 <br /> LCS(AR10010-BSI) Prepared:09/02/08 Analyied:09/03/08 <br /> Surrogate:Chlornbenzene 12.4 ugI NJ 99.4 80-120 <br /> Benzene - 12.7 0.5 " 12.5 - 101 80=120 <br /> Toluene 12.4 0.5 12.5 99.2 80-120 <br /> Ethylbenzene 12.6 0.5 12.5 101 80-120 <br /> Xylenes(total) _ 32.6 10 37.5 87.1 80-120 <br /> LCS Dup(ARI0010-BSDI) Prepared:09/02/08 Analyzed:09/03/08 <br /> Surrogate:Chlorobenzene 12.3 ug/l 12.5 98,4 80-110 <br /> Benzene 12.5 0.5 12.5 100 80.120 106 20 <br /> Toluene 12.3 0.5 12.5 98.6 80-120 0.634 20 <br /> Ethylbenzene 12.6 0.5 12.5 101 80-120 0.212 20 <br /> i <br /> Xylenes(total) 32.5 Vo 37.5 86.7 80.120 0.446 20 <br /> I <br /> EXcelcbem Environmental Lab. The results in this report apply 10 the samples analyzed in accordance itwh die chain 0J' <br /> custody document.This analytical report mus!be reproduced in its entirety. <br /> Page 5 of <br /> Laboratory Representative <br />