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' 885 Jarvis Drive <br /> Sequoia • Morgan Hill,CA 95037 <br /> (408)776-9600 <br /> woAnalytical FAX(408)782-6308 <br /> Blaine Tech Services(Shell) Project: Shell Sampled: 4/18/00 <br /> 1680 Rogers Avenue Project Number: 305 S.Hutchins St.,Lodi Received: 4/20/00 <br /> San lose,CA 95112 Project Manager: Nick Sudano Reported: 511110010:10 <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: OD27002 Date Prepared: 4/27/00 Extraction Method: EPA 5030B IP/TI <br /> Blank OD27002-BLKI <br /> Purgeable Hydrocarbons 4/27/00 ND ug/l 50.0 <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-Tris luorotoluene 10.0 10.3 70-130 103 <br /> LCS OD27002-BSI <br /> Benzene 4/27/00 10.0 10.6 ug/l 70-130 106 <br /> Toluene 10.0 10.3 70-130 103 <br /> Ethylbenzene 10.0 9.84 70-130 98.4 <br /> Xylenes(total) 30.0 30.8 70-130 103 <br /> Surrogate: a,a,a-Triuorotoluene 10.0 10.9 70-130 109 <br /> Matrix Spike OD27002-MSI MJD0655-02 <br /> Benzene 4/27/00 10.0 ND 9.78 ug/l 60-140 97.8 <br /> Toluene 10.0 ND 9.65 60-140 96.5 <br /> Ethylbenzene 10.0 ND 9.26 60-140 92.6 <br /> Xylenes(total) 30.0 ND 28.1 60-140 93.7 <br /> Surrogate: a,a,a-Triiluorotoluene 10.0 10.5 70-130 105 <br /> Matrix Spike Duo OD27002-MSDI MJD0655-02 <br /> Benzene 4/27/00 10.0 ND 10.3 ug/l 60-140 103 25 5.18 <br /> Toluene 10.0 ND 10.0 60-140 100 25 3.56 <br /> Ethylbenzene 10.0 ND 9.57 60-140 95.7 25 3.29 <br /> Xylenes(total) 30.0 ND 29.4 60-140 98.0 25 4.52 <br /> Surrogate: a,a,a-Trinuorotoluene _ 10.0 10.9 70-130 109 <br /> Batch: OE01001 Date Prepared: 5/1/00 Extraction Method: EPA 5030B IP/TI <br /> Blank OEOl00l-BLKI <br /> Purgeable Hydrocarbons 5/1/00 ND ug/I 50.0 <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 Hil I *Refer to end of report for text of notes and definitions. <br /> Page 8 of 15 <br />