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819 Striker Avenue Suite 8 <br /> S e qu o l a Sacramento CA 95834 <br /> (916)921-9600 <br /> FAX(916)921-0100 <br /> Analytical www sequoialabs com <br /> Stratus Environmental Project Arco 2130, Stockton,CA Sampled 6/26/00 <br /> 3330 Cameron Park Drive,Ste 550 Protect Number N/A Received 6/27/00 <br /> Cameron Park,CA 95682 Project Manager Jay Johnson Reported 7/13/00 <br /> _;Total Purgeable Hydrocarbons(C6-C12),and BTEX bysDHS LOFT/Quality' ---'oi�"`'�> - w_l-` ar 7 ''v' <br /> _ r� ` <br /> f K Sequoia Analytical=Sacr'amento' <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 0070064 Date Prepared 717100 Extraction_Method EPA 5030B(MeOH) <br /> Blank 0070064-BLKI <br /> Purgeable Hydrocarbons 7/7/00 ND ug/l 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 _ <br /> Surrogate a a,a-Trifluorotoluene 100 107 600-140 107 <br /> LCS 0070064-BS1 <br /> Benzene 717/00 100 102 ug/l 700-130 102 <br /> Toluene 100 103 700-130 103 <br /> Ethylbenzene 100 104 700-130 104 <br /> Xylenes(total) 300 310 700-130 103 <br /> Surrogate a a,a-Trifluorotoluene 100 10 6 600-140 106 <br /> 0trix 5nike 0070064-MSI 5006356-03 <br /> Benzene 7/7/00 100 ND 108 ug/l 600-140 108 <br /> Toluene 100 ND 104 600-140 104 <br /> Ethylbenzene 100 ND 104 600-140 104 <br /> Xylenes(total) 300 ND 31 1 600-140 104 <br /> Surrogate a,a,a-Trfruorotoluene 100 123 600-140 123 <br /> Matrix Spike Dup 0070064-MSD1 5006356-03 <br /> Benzene 7/7/00 100 ND 105 ug/l 600-140 105 250 282 <br /> Toluene 100 ND 988 60 0440 988 25 0 513 <br /> Ethylbenzene too ND 101 600-140 101 25 0 293 <br /> Xylenes(total) 300 ND 303 600-140 101 25 0 293 <br /> Surrogate a,a,a-Trifluorotoluene 100 120 600-140 120 <br /> Batch 0070069 Date Prepared 7110/00 Extraction Method EPA 5030B,(MeOH) <br /> Blank 0070069-BLKI <br /> Purgeable Hydrocarbons 7110/00 ND ug/1 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND " <br /> 0 500 <br /> Surrogate a,a a-Trifluorotoluene 100 J06 600-140 106 <br /> LCS 0070069-BSI <br /> Benzene 7/10100 100 101 ug/l 700-130 101 <br /> Toluene 100 102 700-130 102 <br /> - .-- <br /> uoia Analytical-Sacramento *Refer to end of report for text ofnotes and definitions <br /> Page 6ofII <br />