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885 Jarvis Drive <br /> Sequoia Morgan(408)�659600 <br /> FAX{408)782-6308 <br /> Analytical w '"sequola,abs`°m <br /> Blaine Tech Services(Shell) Project Shell Sampled 4118/00 <br /> 1680 Rogers Avenue Prosect Number 2575 Country Club,Stockton Received 4119100 <br /> San Jose,CA 9511) Project Manager Nick Sudano Reported 5/16/00 11 12 <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 OD28006 Date Prepared 4128/_0_0 Extraction Method EPA 5030511? <br /> Blank OD28006-BLK1 <br /> Purgeable Hydrocarbons 4128/00 ND ug/I 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tent-butyl ether _ _ ND - -__ _250 <br /> Surrogwe a a a-Trifluorotoluene 100 104 70-130 104 <br /> LCS OD28006-BS l <br /> Benzene 4128100 100 11 1 ug/l 70-130 1]1 <br /> Toluene too 981 70-130 981 <br /> �thylbenzene 100 9 11 70-130 91 1 <br /> ylenc.s(WLdl) 300 2-2 70-130 907 <br /> Surrogate a a a-Ti rtluoratoluene 100 104 70-130 104 <br /> Matrix Spike OD28006-MSI MJD0586-02 <br /> Benzene 4128/00 100 ND 106 ag/l uO-140 106 <br /> Folse-e too ND 938 " 60-140 938 <br /> Ethylben>erie 100 ND 874 60-140 874 <br /> Xylenes notal) - 300 ND 263 60-140 87 7 <br /> Surrogate a a a-7 rifluorotoluene 100 966 70-130 966 <br /> Matrix Spike Dup OD28006-MSDI MJD0586-02 <br /> Benzene 4128100 100 ND 113 ug/l 60-140 113 25 639 <br /> roluene loo ND 997 60-140 997 25 610 <br /> Ethylbenzene 100 ND 922 60-140 922 25 535 <br /> Xylenes(total) _ _ _ 300 -- -ND 278 _ _60-14_0_ 927 _ 25- - 555 — <br /> Surrogate a,a a-i nfluorotoluene 100 100 70-130 100 <br /> Batch OE01002 Date Prepared 511100 Extraction Method EPA 50305 PIT <br /> Blank OE01002-BLKI <br /> Purgeable Hydrocarbons 511/00 ND ug/I 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 /> 1Sequola Analytical-Morgan Hill 'Refer to end of report for text of notes and definitions <br /> Page 13 of 20 <br />