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C 4U J In 1ti Drat e <br /> Sequoia Mor dsiIlifl CA 9.)037 <br /> `"1 (404)776 9600 <br /> AnalvficalSLqunial itis aim <br /> URS Corporation rArco I I Project ARCO 46140 Tracey,CA NIOK0965 <br /> 2870 Gateway Oaks Dr,Ste 300 Project Number LOCI Y-0010 1 C1'O1 t"I <br /> Sacramento CA,95833 Project Manager Jay Johnson 12/02/05 12 34 <br /> Volatile Organic Compounds by EPA Method 8260E - Quality Control <br /> Sequoia Analytical- Morgan Hill <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limn linos Level Result %REC Limits RPD Limn Notes <br /> Batch 5K29003- EPA 5035/EPA 8260B <br /> Blank(5K29003-BLK1) Prepared&Analyzed 11/29/05 <br /> tert-Atnyl methyl ether ND 00050 mg/kg <br /> Benzene ND 00050 <br /> tert Butyl alcohol ND 0 020 " <br /> Di-isopropyl ether ND 00050 " <br /> 12-Dibromoethane(EDB) ND 00050 <br /> 1 2 Dichloroetliane ND 00050 <br /> Ethanol ND 010 IC <br /> Ethyl tert-butyl ether ND 00050 <br /> Ethylbenzene ND 00050 " <br /> Methyl tert-butyl ether ND 00050 <br /> Toluene ND 00050 <br /> W'e <br /> nes(total) ND 00050 <br /> hne Range Organics(C4-Cl2) ND 0 10 " <br /> Surrogate 1 2-Dichloroethunc.d4 000401 0 00500 80 60-125 <br /> Laboratory Control Sample(5K29003-BSI) Prepared&Analyzed 11/29/05 <br /> tert-Amyl methyl ether 00157 0 0050 mg/kg 00150 105 80-130 <br /> Benzene 000494 0 0050 000516 96 65-125 <br /> cert-Butyl alcohol 0 139 0 020 0 143 97 80-165 <br /> Di-isopropyl ether 00153 0 0050 00151 101 85-115 <br /> 1 2-Dibromoethane(EDB) 00158 00050 00149 106 85-130 <br /> 1 2-D1011oroethane 00161 00050 00147 110 63-124 <br /> Ethanol 0140 010 0142 99 35-150 IC <br /> Ethyl tert butyl ether 00155 00050 00150 103 80-125 <br /> Ethvibenzene — 000654 00050 000754 87 80-135 <br /> Methyl tert-butyl ether 000763 00050 000702 109 75-115 <br /> Toluene 00338 00050 00372 91 85-125 <br /> Xylenes(total) 00372 00050 00412 90 80-140 <br /> Gasoline Range Organics(C4-C12) 0 498 010 0 440 113 53-126 <br /> Surrogate 1 2-Drchlorocthane-d4 000454 000500 91 60-125 <br /> Sequoia Analvtical- Moraan Hill The results in this report apply to the samples analy:ed in accordance a nh ilu c pain of <br /> custodv document Unless otherwise stated results are reported on a ILCI u ughr haws <br /> This analy tical report must be reproduced in its entirety <br /> pmze 8 of 10 <br />