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Sequoia 1551 Industrial Road <br /> San Carlos CA 94070-411 1 <br /> qwr Analytical (650) 232-9600 <br /> FAX(650) 232-9612 <br /> 40 <br /> Blaine Tech Services Project Shell(2) Sampled 5/25/99 <br /> 1680 Rogers Avenue Project Number Shell 34t East Main St,Ripon Received 5/26/99 <br /> San Jose,CA 95112 Project Manager Fran Thie Reported 6/15/99 <br /> ;�x-- <br /> _��€€ "`���";r�` '�m`� 'Total�Purgeable Hydrocarbons>(ECr�C;I2};BTEX+aa�d�M'1'BEPIay DHS�L`L7FT/QuaIityy Contrpl3 ": � ��"� §� <br /> Date -Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9060025 Date Prepared 6/4/99 Extraction Method EPA 5030B IP/Tl <br /> Blank 9060025-BLKl <br /> Purgeable Hydrocarbons as Gasoline 6/4/99 ND ugn 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 500 <br /> Surrogate a,a a-Trtfluorotoluene 100 110 700-130 110 <br /> LCS 9060025-BSI <br /> Benzene 6/4/99 1 0 0 106 ug/l 700-130 106 <br /> Toluene 100 106 700-130 106 <br /> Ethylbcnzcnc 100 106 700-130 106 <br /> Xylenes(total) 300 32 1 700-130 107 <br /> Surrogate a a a-Tnfluorotoluene 100 992 700-130 99 2 <br /> Matrix Spike 9060025-MS1 L905526-03 <br /> Benzene 6/4/99 100 1 l7 l t 4 ug/I 600-140 102 <br /> Toluene 10 0 _2 5913 9 60 0-140----.---113 <br /> Ethylbenzene 100 0 817 11 2 600-140 104 <br /> Xylenes(total) 300 4 05 362 600-140 107 _ <br /> Surrogate a a,a-Tnfluorotoluene 100 11 1 700-130 111 <br /> Matrix Spike Dup 9060025-MSD1 L905526-03 <br /> Benzene 6/4/99 100 1 17 11 0 ug/1 600-140 98.3 250 3 69 <br /> Toluene 11 100 259 126 600-140 100 250 122 <br /> Ethylbenzene too 0 817 110 600-140 102 250 194 <br /> Xylenes(total) 300 4 05 348 600-140 102 250 4 78 <br /> Surrogate a,a,a-Trifluorotoluene 100 101 700-130 101 <br /> Batch 9060039 Date Prepared 617/99 Extraction Method EPA 5030E 1P/Tl <br /> Blank 9060039-BLKl <br /> Purgeable Hydrocarbons as Gasoline 6/7/99 ND ug/l 500 <br /> Benzene " ND 0 500 <br /> Toluene ND ---0500 <br /> Etbylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether _ ND 500 <br /> Surrogate a,a a-Trtfluorotoluene 100 110 700-130 110 <br /> Sequoia Analytical-San Carlos *Refer to end ofreport for text of notes and definttto <br /> Page 4 of 7 <br />