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�ti I Citi I7nF7 <br /> Sequoia Mnr-in I hi ll CA 9�(I,7 <br /> flca 7 tL[� (3UN)71696{IU <br /> 3 3 <br /> t A 4a I-' I �ytiti ti`�14It 1, �rtiin <br /> i <br /> URS Corporation JArcoI I Project ARCO#6100 Tracey,CA mokoS8> <br /> 2870 Gateway Oaks Dr,Ste 300 Project Number GOC 1 Y-0010 Re P,i i.'1 <br /> Sacramento CA,95833 Project Manager Jay Johnson €2/02/0 10 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Sequoia Analytical - Morgan Hill <br /> Reporting Spike Source %RFC RPD <br /> Analvte Result Limit Units Level Result %REC Limits RPD Limit 71." <br /> Batch 5K21014- EPA 5035/EPA 82608 <br /> Matrix Spike(5K21014-MSI) Source MOK0789-01 Prepared&Analyzed 11/21/05 _ <br /> tert-Amyl methyl ether 00154 00050 mg/kg 00150 000015 102 80-130 <br /> Benzene 000495 00050 0 00516 ND 96 65-125 <br /> cert-Butyl alcohol 0 155 0 020 0 143 00041 106 80-135 <br /> Di-isopropyl ether 00155 00050 00151 ND 103 85-115 <br /> 1 2-Dibromoethane(EDB) 00140 00050 00149 ND 94 85-130 <br /> 1 2-Dichloroethane 00129 00050 00147 ND 88 63-124 <br /> Ethanol 0 107 0 t0 0 142 ND 75 35 150 <br /> Ethyl tert butyl ether 00156 00050 0 0150 ND 104 80 125 <br /> Ethylbenzene 000628 00050 000754 ND 83 80-135 <br /> Methyl tert-butyl ether 000810 00050 000702 00015 94 75-115 <br /> Toluene 00324 00050 00372 000030 86 85-125 <br /> Xylenes(total) 00356 00050 00412 000083 84 80-140 <br /> saline Range Organics(C4-C 12) 0 451 010 0 440 ND 102 53-126 <br /> ourrogaic 12 Dichloroethane d4 0019370 000500 74 60-125 <br /> Matrix Spike Dup(5K21014-MSDI) Source MOK0789-01 Prepared&Analyzed 11/21/05 _ <br /> tert-Amyl methyl ether 00152 00050 mg/kg 00150 000015 100 80-130 l 25 <br /> Benzene. 000473 00050 000516 ND 92 65-125 5 20 <br /> tort-Butyl alcohol 0 €50 0 020 0 t43 00041 102 80-135 3 20 <br /> Di isopropyl ether 00151 00050 00151 ND 100 85-115 3 20 <br /> 1 2-Dibronmoethane(EDB) 00135 00050 00149 ND 91 85-130 4 1 <br /> 1 2-Dichloroethane 00140 00050 00147 ND 95 63-124 8 25 <br /> Ethanol 0111 010 0142 ND 78 35-150 4 40 <br /> Ethvl tert-butyl ether 00154 00050 00150 ND 103 80-125 1 2> <br /> Ethylbenzene _ _--_----0 00613 _00050__ _-000754_ND 81SO-L35_ 2 ___ 20 <br /> Methyl tert-butyl ether 000921 00050 000702 00015 110 75-115 €3 35 <br /> Toluene 00306 00050 00372 000030 81 85-125 6 15 LN <br /> X�lenes(total) 00347 00050 00412 000093 82 80-140 3 20 <br /> Gasoline Range Organics(C4 C12) 0 448 010 0 440 ND 102 53-126 0 7 25 <br /> Surroratc. 12-Dichloroethane-d4 000387 000500 77 60-125 <br /> Sequoia Analytical - Morgan Hill The results in this report apply to the samples analv--ed in aceoi darrcc a ith di, c haw nl <br /> custody document Unless othenvtse stated results are reported on a it c t it c i,,1 n, tr <br /> . Thus anti rical report must he reproduced in its entirett <br /> P-tt=e 12 of 13 <br />