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Sequoia 1551 Industrial Road <br /> 41) San Carlos CA 94070-4111 <br /> (650) 232-9600 <br /> Analytical <br /> FAX(650) 232-9612 <br /> Blaine Tech Services Project Shell(2) Sampled 7/12199 t <br /> 1680 Rogers Avenue Project Number Shell 341 East Main St,Ripon/990712-M I Received 7115/99 <br /> San Jose,CA 95112 Project Manager Fran Thie Reported 7/30/99 10 16 <br /> T&ai Purg&able-Hyd[Fc&rbnns'(C6-:U2);BTFx and`MTUfty DHS LiT1 T1Qua ty anfroI �x>� ," -' <br /> t t} a� � r1r j �, Y;.r��., <br /> r�et101S11Ayt1C ;a.►��I1I� FOS, � � <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> IAnalyte Analyzed Level Result Result Units Recov Limits % Limit % No1hs' <br /> r <br /> Batch- 9070070 Date Prepared- 7119199 Extraction Method EPA 5030E 1P/Tl <br /> Blank 9070070-BLK1 s <br /> Purgeable Hydrocarbons as Gasoline 7/19/99 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 _ to ND 500 <br /> Surrogate a a,a-Tnfluorotoluene 10 0 102 700-130 10.2 <br /> k <br /> LCS 9070070-BSI i <br /> P_urgeable Hydrocarbons as Gasoline _ 7/19/99 _- 250 232 _ug/1 700-130 92 8 <br /> Surrogate a a,a-Trifluorotoluene 100 115 otT 700-130 115 <br /> Matrix 5 Ike 9070070-MSl L907I35-02 <br /> rgeable Hydrocarbons as Gasoline - 7/20199 _ 250 _ 55 0 294 ug/l __ 600-140 956 <br /> urrogate a a a-Tnfluoromluene " 10 0 337 " 700-130 33 7 j <br /> Matrix Spike Dup 9070070-MSD1 L907135-02 <br /> Purgeable Hydrocarbons as Gasoline 7/20/99 250 55 0 298 ug/l 600-140 972 250 1 66 <br /> Surrogate a,a,a-Tnfluorotoluene 10 0 390 " 700-130 390 _'RTe ] <br /> ldbo <br /> quoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 4 of 6 <br />