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Sequoia • 819 Striker Avenue Suite 8 <br /> Sacramento CA 95834 <br /> Analytical (916'921 9600 <br /> FAX (9 16)921-0100 <br /> SECOR International-Sacramento Project ARCO 434,Lodi,CA Sampled 1/21/00 <br /> 9912 Business Park Dr, Ste 100 Project Number 077 41909 050 Received 1/21100 <br /> Sacramento,CA 95827 Project Manager Rusty Benkosky Reported 2/3100 <br /> Total Purgeable Hydrocarbons (C6-C12)and 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'i <br /> Batch 0010189 Date Prepared 1125100 Extraction Method EPA 5030B(PIT) <br /> Blank 0010189-BLK1 <br /> Purgeable Hydrocarbons 1/25/00 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-Trrfluorotoluene 100 925 60 0-140 92 5 <br /> LCS 0010189-BSI <br /> Benzene 1/25100 100 8 77 ug/l 700-130 87 7 <br /> Toluene 100 8 59 700-130 85 9 <br /> Ethylbenzene 100 863 70 0-130 863 <br /> Xylenes(total) _ 300 262 700-130 873 <br /> S <br /> are a a a-Trifluorotoluene 100 102 600-140 102 <br /> Matrix Spike 0010189-MSI 5001274-01 <br /> Benzene 1/25/00 100 ND 8 32 ug/l 600-140 83 2 <br /> Toluene 100 ND 8 33 600-140 83 3 <br /> Ethylbenzene 100 ND 8 58 600-140 858 <br /> Xylenes(total) 300 ND 250 _ 600-140 83_3 <br /> Surrogate a a a-Trrfluorotoluene 100 T 9 23 600-140 92 3 <br /> Matrix Spike Dup 0010189-MSD1 5001274-01 <br /> Benzene - 1/25/00 100 ND 883 ug/l 600-140 883 250 5 95 <br /> Toluene 100 ND 8 64 600-140 864 250 3 65 <br /> Ethylbenzene 100 ND 874 600-140 874 250 185 <br /> Xylenes(total) _ _ 300 ND 264 600-140 88_0_ 250 549 <br /> Surrogate a a a-Tr�uorololuene 100 104 <br /> 60 0-140 104 <br /> Batch 001:0241 Date Prepared 1125/00 Extraction_Method_EPA 5030B(MeOH) <br /> Blank 0010241-BLK1 <br /> Purgeable Hydrocarbons 1/25/00 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-Trifluorololuene 100 957 600-140 95 7 <br /> LCS 0010241-BSI <br /> Benzene 1/25/00 100 830 ug/l 700-130 83 0 <br /> TW 100 8 39 700-130 839 <br /> Sequoia Analytical-Sacramento _ "Refer to end of report for text of notes and definitions <br /> Page 5 of 8 <br />