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PSI--Oakland Project: Inters 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 /> Volatile Organic Compounds by EPA Method 8260B -Quality Control <br /> SunStar Laboratories, Inc. <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 8012901-EPA 5030 GCMS <br /> Matrix Spike(8012901-MSI) Source:T800117-01 Prepared:01/29/08 Analyzed:01/30/08 <br /> Surrogate:4-Bromofluombenzene 7.81 ug/kg 8.00 97.6 81-/I8 <br /> Surrogate:Dibromofluoromethane 7.25 8.00 90.6 73-127 <br /> Surrogate: Toluene-d8 8.53 8.00 107 85-115 <br /> Chlorobenzene 84.0 5.0 " 100 ND 84.0 75-125 <br /> I,I-Dichloraethene 71.9 5.0 100 ND 71.9 75-125 QM-07 <br /> Trichloroethene 111 5.0 too ND 111 75-125 <br /> Benzene 82.1 5.0 Y 100 ND 82.1 75-125 <br /> Toluene 82.4 5.0 100 ND 62.4 75-125 <br /> Matrix Spike Dup(8012901-MSDI) Source:T860117-01 Prepared:01/29/08 Analyzed:01/30/08 <br /> Surrogate:4-Bromofluorobenzene 7.89 ug/kg 8.00 98.6 81418 <br /> Surrogate:Dibromofluaromethane 7.03 8.00 87.9 73-127 <br /> Surrogate: Toluene-d8 8.54 8.00 107 85-115 <br /> Chlorobenzene 100 5.0 100 ND 100 75-125 17.3 20 <br /> I,1-Dichloroethene 99.3 5.0 100 ND 99.3 75-125 32.0 20 QR-02 <br /> Trichloroethene 136 5.0 100 ND 136 75-125 20.3 20 QM-07, <br /> QR-02 <br /> Benzene 101 5.0 100 ND 101 75-125 20.2 20 QR-02 <br /> Toluene 101 5.0 100 ND 101 75-125 20.4 20 QR-02 <br /> Batch 8012902-EPA 5030 GCMS <br /> Blank(8012902-BLK1) Prepared:01/29/08 Analyzed:01/30/08 <br /> ISurrogate:4-Bromofluorobeuene 7.79 ug/l 8.00 97.4 77.1-1/0 <br /> Surrogate:Dibromofluoromethane 8.19 8.00 102 66.3-111 <br /> Surrogate:Toluene-d8 8.64 8.00 108 90.9-105 S-GC <br /> Bromobenzene ND 1.0 <br /> Bromochloromethane ND 1.0 <br /> Bromodichloromethane ND 1.0 <br /> Bromoform ND 1.0 " <br /> Bromomethane ND 1.0 <br /> n-Butylbenzene ND 1.0 " <br /> sec-Butylbenzene ND 1.0 " <br /> ' ten-Butylbenzene ND 1.0 " <br /> Carbon tetrachloride ND 0.50 <br /> Chlorobenzene ND 1.0 <br /> Chloroethane ND 1.0 " <br /> Chloroform ND 1.0 <br /> Chloromethane ND 1.0 <br /> 2-Chlorotoluene ND 1.0 <br /> 4-Chlorotoluene ND 1.0 " <br /> Dibromochloromethane ND 1.0 " <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 entirety. <br /> Albert Vargas For John Shepler,Laboratory Director Page 21 of 24 <br />