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16, <br /> IT Corp Project 7-Eleven#21756 <br /> 4005 Port Chicago Hwy Project Number 781723 Reported <br /> ' Concord CA,94520 Project Manager Shelby Lathrop 4/6102 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> ' SunStar Laboratories, Inc. <br /> Reporting Spike Source %R-EC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> ' Batch 2040404 -EPA 5030 Water MS <br /> Blank(2040404-BLK1) Prepared&Analyzed 04/03/02 <br /> 1,1,2-Trichloroethane ND 50 ug/l <br /> 1,1,1-Trichloroethane ND 50 <br /> Trichloroethene ND 50 " <br /> ' Trichlorofluoromethane ND 50 <br /> 1,2,3-Tnchloropropane ND 50 <br /> 1,3,5-Tnmethylbenzene ND 50 " <br /> 1,2,4-Tnme1hylbenzene ND '50 <br /> Vinyl chloride ND 50 <br /> m,p-Xylene ND 50 <br /> o Xylene ND 50 " <br /> 1 Surrogate Toluene-d8 378 400 945 86-115 <br /> Surrogate 4-Bromofluorobenzene 373 400 932 86-115 <br /> Surrogate Dibromofluoromethane 386 400 965 86-118 <br /> Matrix Spike(2040404-MSI) Source T200235-04 Prepared&Analyzed 04/03/02 <br /> Benzene 78 8 5 0 ug/I 100 ND 78 8 75-125 <br /> Chlorobenzene 100 5 0 " t00 ND 100 75-125 <br /> ' 1,1-Dichloroethene 100 5 0 „ too ND 100 75-125 <br /> Toluene 82 7 50 100 ND 927 75-125 <br /> Tnehloroethene 968 5 0 100 ND 968 75-125 <br /> ' Surrogate Toluene-d8 389 400 972 86-115 <br /> Surrogate 4-Bromofluorobenzene 368 400 92 0 86-115 <br /> Surrogate Dibromofluoromethane 435 400 109 86-118 <br /> ' Matrix Spike Dup(2040404-MSD1) Source T200235-04 Prepared&Analyzed 04/03/02 <br /> Benzene 797 5 0 ug/l 100 ND 79 7 75-125 1 l4 20 <br /> Chlorobenzene 95 5 5 0 100 ND 95 5 75-125 4 60 20 <br /> ' 1,1-Dichloroethene 98 6 5 0 ji 100 ND 986 75-125 141 20 <br /> Toluene 82 2 5 0 100 ND 82 2 75-125 0 606 20 <br /> Trichloroethene 98 4 5 0 100 ND 98 4 75-125 1 64 20 <br /> ' Surrogate Toluene-d8 38 4 „ 400 960 86-115 <br /> Surrogate 4-Bromofluorobenzene 371 400 93 0 86-115 <br /> Surrogate Dibromofluoromethane 429 400 107 86-118 <br /> ' The results to this report apply to the samples analyzed in accordance with the chain o <br /> SunStar Laboratories, Inc P PPY n Yz f <br /> custody document This analytical report must be reproduced in its entirety <br /> ' Leah Beaucharne,Project Manager Page 15 of 17 <br />