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R4.) I n i1 Drive <br /> Sequoin hlor,inlull GA 91037 <br /> `9 (4Dt)776 9600 <br /> lc 1��T IA\(au5)7X26,08 <br /> uuu%,quni it ih,wm <br /> URS Corporation lArcolI Project ARCO#6100,Tracey,CA NIOK096:) <br /> 2870 Gateway Oaks Dr,Ste 300 Project Number GOC]Y-0010 Repotted <br /> Sacramento CA,95833 Project Manager Jay Johnson 12/02/05 12 34 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Sequoia Analytical - Morgan Hill <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limn Units Level Result %REC Limits RPC) Limo Notes, <br /> Batch 5K29003-EPA 5035 I EPA 8260B <br /> Matrix Spike(5K29003-MSI) Source MOK0965-09 Prepared&Analyzed 11/29/05 <br /> ter/-Amyl methyl ether 00137 0 OOO mg/kg 00150 000013 90 80-130 <br /> Benzene 000470 00050 000516 ND 91 65-125 <br /> tert-Butyl alcohol 0 144 0 020 0 143 ND 101 80-135 <br /> Di isopropyl ether 00143 00050 00151 ND 95 85-115 <br /> 1 2-Dibromoethane(EDB) 00142 00050 00149 ND 95 85-130 <br /> 1 2-Dichloroethane 0 0118 00050 00147 ND 80 63-124 <br /> Ethanol 0139 0 t 0142 ND 98 35-150 IC <br /> Ethyl tent-butyl ether 00137 00050 00150 ND 91 80-125 <br /> Ethylbenzene 000631 00050 000754 ND 84 80-135 <br /> Methyl tert butyl ether 000563 00050 000702 ND 80 75-115 <br /> Toluene 00349 00050 00372 000013 93 85-125 <br /> 10lenes(total) 00366 00050 00412 ND 89 80-140 <br /> saline Range Organics(C4-C12) 0 446 010 0440 ND 101 53-126 <br /> Sunrogate 1 2-Drchloroethane-d4 600344 000500 69 60-125 <br /> Matrix Spike Dup(5K29003-MSDI) Source MOK0965-09 Prepared&Analyzed 11/29/05 <br /> tent-Amyl methyl ether 0 01 16 00050 mg/kg 00150 000013 76 80-130 17 25 LN <br /> Benzene 000403 00050 000516 ND 78 65-125 15 20 <br /> tert-Butyl alcohol 0 122 0 020 0 143 ND 85 80-135 17 20 <br /> Di-isopropyl ether 00119 0 0050 00151 ND 78 85-115 19 20 LN <br /> 1 2-Dibromoethane(EDB) 00117 0 0050 00149 ND 79 85-130 19 15 LN BA <br /> 12-Dichloroethane 00100 00050 00147 ND 68 63-124 17 25 <br /> Ethanol 0 H4 0 099 0 142 ND 80 35-150 20 40 IC <br /> Ethyl Cert butyl ether 0 01 15 00050 00150 ND 77 80-125 17 25 LN <br /> Ethylbenzene - 0 00564 - 00050 -0 00754 ND 75 80-135 11 20 - - LN <br /> Methyl tert-butyl ether 000471 00050 000702 ND 67 75-115 18 35 LN <br /> Toluene 00297 00050 00372 000013 79 85-125 16 15 LN BA <br /> xylenes(total) 00322 00050 00412 ND 78 80-140 13 20 LN <br /> Gasoline Range Organics(C4-C12) 0 391 0 099 0 440 ND 89 53-126 13 25 <br /> Surrogatt 12-Drchloroethane-d4 000336 " 000500 67 60-125 <br /> Sequoia Analytical - Morgan Hill Tire results to this report apply to rhe samples analy-ed in accordance 11 111?tlrc churn of <br /> custodv document Unless otherirtse stated results are rcporrea Ott a It cr It c 11,111 basis <br /> This analNrcal report must be reproduced in us entirety <br /> P.1,e 9 of 10 <br />