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rZ <br /> 0 <br /> Corp Project 7-Eleven#20632 <br /> 4005 Port Chicago Hwy Project Number 7200267 Reported <br /> Concord CA,94520 Project Manager Kim Metez 04/22/02 10 08 <br /> Volatile Organic Compounds by]EPA Method 826018 - Quality Control <br /> SunS>tar Laboratories, Inc. <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC 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 /> Styrene ND 50 <br /> Ten-amyl methyl ether ND 20 <br /> 1,1,2,2-Tetrachloroethane ND 50 " <br /> Ten-butyl alcohol ND 50 " <br /> 1,1,1,2-Tetrachloroethane ND 50 <br /> Tetrachloroethene ND 50 <br /> Toluene ND 50 " <br /> a1,2,3-Tnchlorobenzene ND 50 <br /> 1,2,4-Tnchlorobenzene ND so <br /> 1.1,2-Trichloroethane ND 50 " <br /> Tnchloroethane ND 50 " <br /> loroethene ND 50 " <br /> Trichlorofluoromethane ND 50 " <br /> 1,2,3-Tnchloropropane ND 50 " <br /> 1,3,5-Trimethylbenzene ND so " <br /> ],2,4-Tnmethylbenzene ND 50 <br /> myl chlonde ND 50 <br /> m,p-Xylene ND 50 " <br /> Xylene ND 50 " <br /> U!kurrogate Toluene-d8 964 100 964 81-117 <br /> Surrogate 4-Bromofluorobenzene 945 100 945 74-121 <br /> C2tnx <br /> rrogate Dibromofluoromethane 101 100 101 80-120 <br /> Spike(2041503-MSI) Source T200251-06 Prepared&Analyzed 04/12/02 <br /> Benzene 227 5 0 ug/kg 250 ND 90 8 75-125 <br /> Khlorobenzene 231 50 250 ND 92 4 75-125 <br /> ,1D,'hJJ'.'Cthene 244 5 0 250 ND 97 6 75-125 <br /> oluene 220 5 0 250 ND 88 0 75-125 <br /> Tnchloroethene 211 50 250 ND 844 75-125 <br /> fm <br /> arrogate Toluene-d8 952 100 952 81-117 <br /> arrogate 4-Bromofluorobenzene 930 100 930 74-121 <br /> Surrogate Dibromofluoromethane 102 100 102 80-120 <br /> *tar Laboratories,Inc The results in this report apply to the samples analyzed in accordance with the chain of <br /> acustody document This analytical report must be reproduced in its entirety <br /> ohn Sheeler, Laboratory Director Page 21 of 24 <br />