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885 Jarvis Drive <br /> 4 Sequoia Morgan Hill CA 95037 <br /> (408) 776-9600 <br /> Analytical FAX(408) 782-6308 <br /> Blaine Tech Services(Shell) Project Equiva Sampled 7/27/99 <br /> 1680 Rogers Avenue Project Number 2575 Country Club Stockton Received 7/28/99 <br /> San Jose CA 95112 Project Manager Ann Pember Reported 8/18/99 <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 9080239 Date Prepared 819199 Extraction Method EPA 5030B IPM <br /> Blank 9080239-B LK 1 <br /> Purgeable Hydrocarbons 8/9/99 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 /> Methyl tert-butyl ether ND _ _2_50 <br /> Surrogate aaa-7rifluorotoluene _ 10 0-13 <br /> 0 9 70 70 0 970 <br /> LCS 9080239-BSI <br /> Benzene 8/9/99 100 9 10 ug/I 700-130 91 0 <br /> Toluene 100 900 700-130 900 <br /> ibenzene 100 9 10 700-130 91 0 <br /> es(total) _ _ 300 27 0 70_0-130 900 <br /> u rogate a a a-Trifluorotoluene 100 940 70 0-13D 91 D <br /> Matrix Spike 9080239-MSI 9070157-01 <br /> Benzene 8/9/99 100 ND 900 ug/I 600-140 900 <br /> Toluene 100 ND 900 600-140 900 <br /> Ethylbenzene 100 ND 900 600-140 900 <br /> Xylenes(total) T _ Y� 300 ND __ 210 600-140 90 0 _ <br /> Surrogate a a a-Trifluorotoluene 100 100 700-130 ]DO, <br /> Matrix Spike Dup 9080239-MSDI; 9070157-01 <br /> Benzene 8/9199 100 ND 860 ugJl 600-140 860 25 0 455 <br /> Toluene 100 ND 850 600-140 850 25 0 571 <br /> Ethylbenzene 100 ND 850 600-140 85 0 250 5 71 <br /> Xylenes(total) 300 ND_ _ 240 60 0-140 800 25 0 118 <br /> Surrogate a a a-Trifluorotoluene /00 930 700-M 93 0 <br /> Batch 9080240 Date Prepared 819/99 Extraction Method EPA 5030BFP/Tl <br /> Blank 9080240-BLK 1 <br /> Purgeable Hydrocarbons 8/9199 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 /> Methyl tert-butyl ether _ _" _ _ ND_ __ 250 <br /> Surrogate a a a-Trtfluorotoluene !D O 99-0 700-130 990 <br /> 0 <br /> Sequoia Analytical- Morgan Hill *Refer to end ofreport for text of notes and definitions <br /> page I 1 of 18 <br /> ��'F <br />