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Corp Project 7-Eleven#20632 <br /> 4005 Port Chicago Hwy Project Number T200266 Reported <br /> Concord CA,94520 Project Manager Kim Metez 04/22/02 10 42 <br /> Volatile Organic Compounds by]EPA Method 8260B- Quality Control <br /> SunStar Laboratories, RnC. <br /> Reporting Spike Source %RFC RPD <br /> Analyte Result Lirmt Units Level Result %R-EC Limits RPD Limit Notes <br /> Batch 2041503-EPA 5030 Soil MS <br /> Blank(2041503-BLK1) Prepared 04/12/02 Analyzed 04/15/02 <br /> Methylene chloride ND 50 ug/kg <br /> Methyl tert-butyl ether ND 20 " <br /> Naphthalene ND 50 " <br /> n-Propylbenzene ND 50 " <br /> QStyrene ND 50 " <br /> Tert-amyl methyl ether ND 20 <br /> 1,1,2,2-Tetrachloroethane ND 50 " <br /> Tert-butyl alcohol ND 50 " <br /> 1,1,1,2-Tetrachloroethane ND 50 11 <br /> Tetracbloroethene ND 50 <br /> Toluene ND 50 " <br /> 1,2,3-Tnchlorobenzene ND 50 " <br /> 1,2,4-Tnchlorobenzene ND 50 <br /> 1 1 2-Trichloroethane ND so <br /> Tnchloroethane ND 50 " <br /> loroethene ND 50 " <br /> Tnchlorofluoromethane ND 50 " <br /> 1,2,3-Tncbloropropane ND 50 " <br /> 1,3,5-Tnmethyibenzene ND 50 " <br /> 1,2,4-Tnmethylbenzene ND 50 <br /> Vinyl chloride ND 50 <br /> m,p-Xylene ND 50 " <br /> o-Xylene ND 50 <br /> Surrogate Toluene-d8 964 100 964 81-117 <br /> Surrogate 4-Bromofluarobenzene 945 100 945 74-111 <br /> Surrogate Dibromofluoromethane 101 100 141 80-120 <br /> �Matnx Spike(2041503-MSI) Source T200251-06 Prepared&Analyzed 04/12/02 <br /> Benzene 227 50 ug/kg 250 ND 908 75-125 <br /> hlorobcnzene 231 5 0 250 ND 924 75-125 <br /> C,1-Dichloroethene 244 50 „ 250 ND 976 75-125 <br /> Toluene 220 50 250 ND 880 75-125 <br /> Trichloroethene 211 5 0 250 ND 844 75-125 <br /> Currogate <br /> urrogate Toluene-d8 952 100 952 81-117 <br /> 4-Bromofluorobenzene 930 100 930 74-121 <br /> Surrogate Dibromofluoromethane 102 100 142 80-120 <br /> Ocst—arLaboratones, Inc The results in this report apply to the samples analyzed in accordance with the chain of <br /> 0 custody document This analytical report must be reproduced in its entirety <br /> QJoh6 Shepler,Laboratory Director Page 24 of 29 <br />