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819 Striker Avenue Suite 8 <br /> Sequoia Sacramento CA 95834 <br /> (916)921-9600 <br /> Analytical <br /> 00 <br /> www sequequoialabs abs com <br /> Upgradient-Valley Springs Project J& L Market <br /> 336 Augusta Court Project Number NIA Reported <br /> Valley Springs CA,95252 Project Manager Vic Cherven 12/11/01 14 37 <br /> Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015M/8020M - Quality Control <br /> Sequoia Analytical - Petaluma <br /> Reporting Spike Source %fiEC RPD <br /> Analyle Result Limit Units Level Result %REC Limns RPD Lunn Notes <br /> Batch 1110426- EPA 5030, soils McOH <br /> Blank(1110426`BLKI) _ _ _ _ _ _ _ Prepared&Analyzed 11/16/01 <br /> Gasoline(C6-C12) ND 50000 ug/kg <br /> Benzene ND 250 " <br /> 1 oluene ND 250 " <br /> Ethylbenzene ND 250 " <br /> Xylenes(total) ND 250 " <br /> Surrogate a a a-Tri luorwoluene 27500 1130000 91 7 65-135 -- <br /> Surrogate 4-Bromofluorobenzene 30900 1130000 103 65-135 <br /> LCS(1110426-BS1) _ _ _ _ Prepared&Analyzed 11/16/01 <br /> Gasoline(C6-C 12) 290000 50000 ug/kg 275000 105 65-135 <br /> Benzene 4220 250 " 3300 128 65-135 <br /> One 19800 250 ii 19800 100 65-135 <br /> ylbenzene 4410 250 4600 959 65-135 <br /> Xylenes(total) 24000 250 23000 104 65-135 <br /> Surrogate�a a a-Triuorotoluene 29500 30000 98 3 65-135 <br /> Surrogate 4-Bromofluorobenzene 34100 1130000 114 65-130 <br /> Matrix Spike(1110426-MSI)_ _ Source 5171224-04 Prepared&Analyzed 11/16/01 <br /> (,asoline(C6-C 12) 1180000 50000 ug/kg 275000 5t0000 244 65-135 E QM-07 <br /> Benzene 3160 250 3300 ND 95 8 65-135 <br /> Toluene 15100 250 t9800 ND 763 65-135 <br /> Ethylbenzene 6910 2)0 114600 2000 107 65-135 <br /> Xylenes(total) 35300 250 1123000 9400 113 65-135 <br /> Surrogate a a a-Tnfluorololuene 22800 30000 76 0 65-135 <br /> Surrogate 4-BromoJluorobenzene 42500 " 30000 142 60-135 S-04 <br /> Matrix Spike D_up(1110426-MSDI) _Source S111224-04� Prepared&Analyzed 11/16/01 _ _ ____ _ <br /> Gasoline(C6-C12) 855000 50000 ug/kg 275000 510000 125 65-135 31 9 20 QM-07 QR-0 <br /> 7 <br /> Benzene 3370 250 3300 ND 102 65-135 6 43 20 <br /> 1 oluene 16100 250 19800 ND 813 65-135 6 4 t 20 <br /> Ethylbenzene 6130 250 4600 2000 898 6.)-135 12 0 20 <br /> Xylenes(total) 30300 250 23000 9400 909 65-135 15 2 20 <br /> 4terrogate a a a-Friflucrotoluene 24400 _ 30000 81 3 65-135 -� <br /> Surrogate 4-Bromofluorobenaene 49200 30000 164 65-135 S-04 <br /> nota Analytical- Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 17 of 18 <br />