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Sequoia 885 Jarvis 5037 <br /> Morgan Hill CA 95p37 ` <br /> �„� Analytical 4 <br /> (408) 772-6300 <br /> (D FAX(40$) 782-6308 <br /> 9 <br /> Blaine Tei-h ServILCS(Shell) Project Equiva Sampled 10/28/99 <br /> 1680 Rogers Avenue Project Number 2575 Country Club Stockton Rcccived 10/29/99 <br /> San Jose CA 95112 Project Manager Leah Davis Ri-pom d 12/3/99 <br /> Focal-Purgeable Hydrocarbons(C6-C-12),-HTEX-aad,MTBE-by=DHS LUFT/Quality-Control <br /> Sequoia Analytscal- 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 9110153 Date Prepared 1114199 Extraction Method EPA 5030B IP/TI <br /> Blank 9110153-BLK1 <br /> Purgeable Hydrocarbons 11/4/99 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 a a a-Trefluorotoluene /00 857 700-130 85 7 <br /> LCS 9110153-BSI. <br /> Benzene 11/4/99 100 891 ue/1 700-130 89 1 <br /> Toluene 100 8 95 700-130 895 <br /> Fthyibenzene 100 9 12 700-130 91 2 <br /> xylenes(total) 300 264 700-130 88 0 <br /> Surrogate a a a Trifuoroioluene /00 984 70 0-131: 93 4 <br /> Matrix Spike 9110153-MSI N1910AAU-02 <br /> Benzene 11/4/99 100 ND 857 ug/l 600-140 85 7 <br /> �Tolutne- — --- -- _.._._ . ._ - -- 10 0�N D�8 62 --"� - -- -- -60 0-1400 86-2 <br /> Ethvibenzene 100 ND 8 86 600-140 88 6 <br /> Xylenes(total) 300 ND 25 7 600-140 85 7 <br /> Surrogate a a a-Trtfltiorotoluene 100 916 700-130 916 <br /> Matrix Spike Dup 9110153-MSD1 M910AAU-02 <br /> Benzene 11/4/99 10 0 ND 884 ug/l 600-140 S84 250 3 10 <br /> Toluene l0 0 ND 898 600-140 898 25 0 409 <br /> Ethylbenzene too ND 920 600-140 92 0 25 0 377 <br /> Xylenes(total) _ 300 ND 26 5 600-140 883 25 0 2 99 <br /> Surrogate a a a-Trifluorotoluene 100 936 700-130 93 6 <br /> Batch 9110154 Date Prepared 1114/99 Extraction Method EPA 50308 IP/T1 <br /> Blank 9110154-BLKI — <br /> Purgeable Hydrocarbons 11/4/99 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-batyl ether ND 250 <br /> Surrogate aaa-lrif uorotoluene 100 901 700-130 901 <br /> Sequoia Analytical -Morgan Hill *Refer to ernd of report for tert of notes and de/mitions <br /> Page 15 of 25 <br />