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885 arvis Drive <br /> Sequoia Morgan HillJCA 95037 <br /> • (408) 77Cb-9600 <br /> Analytical <br /> FAX f4D8) 782-6308 <br /> Blaine Tech Services(Chev) Project Chevron 9-8264(3775 Tracv Blvd Tracy) Sampled 212100 <br /> 1680 Rogers Avenue Project Number 000202-U3 Received 214/00 <br /> San Jose CA 95112 Project Manager Scott Boor Reported 2118/00 18 42 <br /> Total Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUFT/Quality Control <br /> Sequoia Analytical-Morgan Hill <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch OB110O2 Date Prepared 2/11/00 Extraction Method EPA 5030E IP/TI <br /> Blank OBI 1002-BLK1 <br /> Purgeable Hydrocarbons 2/11/00 ND ugll 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methvl tert-butyl ether ND 2 50 <br /> Surrogate a a a-Trrfluorotoluene J00 884 70-130 884 <br /> LCS OB 11002-BS] <br /> Benzene 2/11/00 100 938 ug/l 70-130 938 <br /> Toluene 100 8 77 70-130 877 <br /> Ethylbenzene 100 8 57 70-130 85 7 <br /> Xylenes(total) _ __ " 300 253 " 70-130 843 <br /> Surrogate a a,a-Trifluoroioluene 100 8 78 70-130 878 <br /> Matrix Spike OBI 1002-MS] MJBO198-01 <br /> Benzene 2/11/00 100 ND 9 03 ug/l 60-140 903 <br /> Toluene 100 ND 843 60-140 843 <br /> Ethylbenzene 100 ND 8 51 60-140 851 <br /> Xylenes(total) 300 ND 245_" _ 60-140 817 _ <br /> Surrogate a a a-Trifluorotoluene 100 9 12 70-130 912 <br /> Matrix Spike Dup OB11O02-MSDI MJBO198-01 <br /> Benzene 2/11100 100 ND 9 00 ug l 60-140 900 25 0 333 <br /> Toluene 100 ND 843 60-140 843 25 0 <br /> Ethvlbenzene 100 ND 823 60-140 82 3 25 3 35 <br /> Xylenes(total) 300 ND 24 5 _ 60-140 817 25 0 <br /> Surrogate a a a-Trtfluorotoluene 100 837 _ 70-130 83 7 <br /> Batch OB110O4 Date Prepared 2/11100 Extraction Method EPA 5O30B_IP/Tl <br /> Blank OBI IOO4-BLKl <br /> Purgeable Hydrocarbons 2/11100 ND ugIl 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether ND 2 50 <br /> Sequoia Analytical-Morgan Hill *Refer to end of repot t for text of notes and definitions <br /> Page l I of 22 <br />