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rive <br /> ► 8Jarvis Sequoia Morgan Hill, <br /> 95037 5037 <br /> �� .� 4os) 900 <br /> Analytical <br /> FAX(408)782-6308 <br /> www scquoialabs com <br /> LIRS Corporation[Arcol] Project ARCO#2130,Stockton,CA MOL0602 <br /> 2870 Gateway Oaks Dr, Ste 300 Project Number GOBZK-0002 Reported <br /> Sacramento CA,95833 Project Manager Vemon P Elarth 01/04/06 16 Ol <br /> Volatile Organic Compounds by EPA Method 8260B- Quality Control <br /> Sequoia Analytical -Morgan Hill <br /> Reponmg Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limns RPD Limit Notes <br /> Batch 5L21028-EPA 5030B P/T 1 EPA 8260B <br /> Matrix Spike Dup(5L21028-MSD1) Source MOL0602-15 Prepared 12/21/05 Analyzed 12/22/05 <br /> Cert-Amyl methyl ether 155 50 ug/l 150 66 59 80 115 8 15 LN <br /> Benzene 1460 50 51 6 1600 0 65 115 13 20 BB LN <br /> tert-Butyl alcohol 1710 200 1430 ND 120 75 120 6 25 <br /> Di-isopropyl ether 180 50 151 ND 119 75 125 4 15 <br /> 1 2 Dichloroethane 152 50 147 13 95 85 130 18 20 <br /> Ethanol 2190 1000 1420 ND 154 70-135 3 35 LM <br /> Ethyl tert butyl ether 174 50 150 ND 116 75 130 10 25 <br /> Ethylbenzene 1530 50 754 1600 0 75-135 0 7 15 BB LN <br /> Methyl tert-butyl ether 73 3 5 0 702 ND 104 65-125 11 20 <br /> Toluene 17401 50 372 1500 65 85-120 9 20 LN <br /> Xylenes(total) 2790 50 412 2800 0 85-125 6 20 BB,LN <br /> AlIkasoline Range Organics(C4-C12) 27700 500 4400 24000 84 60 140 9 25 <br /> urrogate 12-Dichloroelhane-d4 220 250 88 60-135 <br /> Batch 5L22002-EPA 5030B PIT/EPA 8260E <br /> Blank(5L22002-BLK1) Prepared&Analyzed 12/22/05 <br /> tert Amyl methyl ether ND 050 ugli <br /> Benzene ND 050 " <br /> tent Butyl alcohol ND 5 0 <br /> Di isopropyl ether ND 050 " <br /> 1,2 Dichloroethane ND 050 <br /> Ethanol ND 100 1C <br /> Ethyl terl-butyl ether ND 050 <br /> Ethylbenzene ND 050 " <br /> Methyl tert-butyl ether ND 050 " <br /> Toluene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Gasoline Range Organics(C4-C 12) ND 50 " <br /> Surrogate 12 Dichloroethane d4 188 150 75 60-135 <br /> Sequoia Analytical-Morgan Hili The results to this report apply to the samples analvzed in accordance with the chain of <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> This analytical report must be reproduced in its entirety <br /> Page 19 of 28 <br />