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' 0 <br /> ' PSI--Oakland Project: Interra Development <br /> 4703 Tidewater Ave Ste B Project Number: 865-86002 Reported: <br /> Oakland CA,94601 Project Manager: Frank Poss 01/30/08 13:51 <br /> 1 Volatile Organic Compounds by EPA Method 8260B-Quality Control <br /> SunStar Laboratories,Inc. <br /> iAnalyte Result Reporting Spike Source %REC RPD <br /> Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 8012901-EPA 5030 GCMS <br /> Blank(8012901-BLKI) Prepared&Analyzed:01/29/08 <br /> Naphthalene ND 5.0 ug/kg <br /> n-Propylbenzene ND 5.0 " <br /> Styrene ND 5.0 ; <br /> I,1,2,2-Tetmchloroethane ND 5.0 <br /> 1,1,1,2-Tetrachloroethane ND 5.0 <br /> Tetmchloroethene ND 5.0 " <br /> 1,2,3-Trichlorobenune ND 5.0 '1 <br /> 1,2,4-Trichlorobennne ND 5.0 <br /> 1,1,2-Trichloroethane ND 5.0 <br /> 1,1,1-Trichloroethane ND 5.0 " <br /> Trichloroethene ND 5.0 " <br /> Trichlorofluoromethane ND 5.0 <br /> 1,2,3-Trichloropropane ND 5.0 <br /> 1,3,5-Trimethylbenzene ND 5.0 " <br /> 1,2,4-Trimcthylbenzene ND 5.0 '1 <br /> Vinyl chloride ND 5.0 <br /> Benzene ND 5.0 <br /> Toluene ND 5.0 " <br /> Ethylbenzene ND 5.0 „ <br /> m,p-Xylene ND 5.0 <br /> o-Xylene ND 5.0 " <br /> Tart-amyl methyl ether ND 20 " <br /> 1 Tert-butyl alcohol ND 50 <br /> Di-isopropyl ether ND 20 <br /> Ethyl tert-butyl ether ND 20 " <br /> Methyl tert-butyl ether ND 20 " <br /> ' LCS(8012901-BSI) Prepared:01/29/08 Analyzed:01/30/08 <br /> Surrogate:4-Bromofluorobenzene 7.59 ug/kg 8.00 94.9 81-118 <br /> Surrogate:Dibromofluoromethane 7.04 8.00 88.0 73-127 <br /> Surrogate: Toluene-d8 8.50 8.00 106 85-115 <br /> Chlorobenzene 89.8 5.0 100 89.8 75-125 <br /> 1,1-Dichloroethene 89.9 5.0 10o 89.9 75-125 <br /> Trichloroethene 104 5.0 " 100 104 75-125 <br /> Benzene 92.8 5.0 100 92.8 75-125 <br /> Toluene 93.0 5.0 100 93.0 75-125 <br /> SunStar Laboratories,Inc. The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirely. <br /> ' Albert Vargas For John Shepler,Laboratory Director Page 20 of 24 <br />