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819 Striker Avenue Suite 8 <br /> 834 <br /> Sequoia <br /> ISacramento916)921959600 <br /> FAX(9 l 6)92 1-0100 <br /> 4CO Analytical www sequoialabs com <br /> Kleinfelder-Stockton Project N/A Sampled 5123100 <br /> 2825 East Myrtle Street Proj cct Number 20-1417-16 E02 Received 5130100 <br /> Stockton, CA 95205 Project Manager Doug Heard Reported 6113100 <br /> BTEX by DHS LUFT/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> L <br /> atch 0060061 Date Prepared615100 Extraction Method EPA 5030B(MeOH) <br /> ank 0060061-BLK1 <br /> Benzene 615100 ND mg/kg 000500 <br /> Toluene ND 000500 <br /> ,Ethylbenzene ND " 000500 <br /> Xylenes(total) ND 000500 <br /> Surrogate a,a a-Trifluorotoluene 617100 0200 0198 600-140 990 <br /> LCS 0060061-BSI <br /> Benzene 615100 0200 0205 mg/kg 700-130 102 <br /> foluene 0200 0 212 700-130 106 <br /> Ethylbenzene 0200 0208 700-130 104 <br /> Xylenes(total) 0 600 0 611 700-130 102 <br /> Surrogate a,a,a-Trâ–ºfluorotoluene 0200 0201 600-140 101 <br />%rix Spike 0060061-MSI 5005391-14 <br /> Benzene 615100 0200 ND 0 157 mg/kg 600-140 785 <br /> Toluene " 0200 ND 0 162 600-140 810 <br /> Ethylbenzene 0200 ND 0 161 600-140 805 <br /> Xylenes(total) 0 600 ND 0 471 600-140 78 5 <br /> Surrogate a,a,a-Trtfluorotoluene 0200 0 190 600-140 95 0 <br /> Matrix Spike Dup 0060061-MSD1 5005391-14 <br /> Benzene 615100 0200 ND 0 158 mg/kg 600-140 79 0 25 0 0 635 <br /> Toluene 0200 ND 0 164 600-140 82 0 25 0 123 <br /> Ethylbenzene 0200 ND 0 161 600-140 805 250 0 <br /> Xylenes(total) 0 600 ND 0 471 600-140 78 5 250 0 <br /> Surrogate a,a a-Trrfluorotoluene 0200 0 191 600-140 95 5 <br />' Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions <br />' Page 5 of 6 <br />