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#qpha <br />Laboratories Inc. <br />e-mail: <br />clientservicesealpha-labs.com <br />CHEMICAL EXAMINATION REPORT <br />URS Corp -Sac <br />Page 46 of 50 <br />2870 Gateway Oaks Dr., <br />Suite 300 <br />Sacramento, CA 95833 <br />Report Date: <br />10/22/07 07:09 <br />Attn: Chani Leimbach <br />Project <br />No: <br />18600251.02041 <br />Project <br />ID: <br />DTSC FMS24 Phase 2 <br />Order Number Receipt Daterrime <br />Client <br />Code <br />07JO352 <br />Client PO/Reference <br />10/06/2007 13:00 <br />URS -SAC <br />Volatile Organic Compounds by EPA Method 8260B - Quality Control <br />Analyte(s) <br />Result <br />PQL Units <br />Spike <br />Level <br />Source <br />Result <br />• <br />/'MC <br />%REC RPD <br />Limits <br />RPD Limit <br />Flag <br />Batch AJ71704 - VOAs in Soil GCMS <br />Matrix Spike (AJ71 4 -MSI <br />Source: 07J0507-01 <br />Prepared <br />& Analyzed: 10/16/07 <br />1,2,4-Trichlorobemene <br />0958 <br />0.00.0188 <br />0.0050 <br />0.0231 <br />ND <br />41.5 <br />0-172 <br />1,1,1 -Trichloroethane <br />0.0050 <br />0.0231 <br />ND <br />81.4 <br />39-154 <br />1,1,2 -Trichloroethane <br />0.0158 <br />0.0050 <br />0.0231 <br />ND <br />68.4 <br />55-130 <br />Trichloroethene <br />Trichlorofluoromethane <br />0.0209 <br />0.0050 IP <br />0.0231 <br />ND <br />90.5 <br />38-143 <br />0.0147 <br />0.0050 <br />0.0231 <br />ND <br />63.6 <br />40-149 <br />Trichlorotrifluoroethane <br />0.0175 <br />0.0050 <br />0.0227 <br />ND <br />77.1 <br />29-150 <br />1,2,3-Trichloropropme <br />0.0150 <br />0.0050 <br />0.0231 <br />ND <br />64.9 <br />50-121 <br />1,2,4-Trimethylbenzene <br />0.0138 <br />0.0050 <br />0.0231 <br />ND <br />59.7 <br />10-169 <br />1,3,5-Trimethylbenzene <br />0.0139 <br />0.0050 <br />0.0231 <br />ND <br />601 <br />25-155 <br />Vinyl chloride <br />0.0206 <br />0.0050 <br />0.0231 <br />ND <br />89.2 <br />44149 <br />m,p-Xylene <br />0.130 <br />0.0050 <br />0.0461 <br />0.16 <br />NR <br />15-162 <br />XXe1�° <br />0.0548 <br />0.0050 <br />0.0231 <br />0.061 <br />NR <br />22-157 <br />QM <br />Xylenes (total) <br />0.185 <br />0.0050 <br />0.0692 <br />0.22 <br />NR <br />14158 <br />Q -05 <br />Surrogate: Bromofluorabenrene <br />0.0204 <br />" <br />QM -OS <br />Surrogate: Drbromofluoromethane <br />0.0208 <br />0.0231 <br />88.3 <br />69-134 <br />Surrogate: Toluene -d8 <br />0.0235 <br />0.0231 <br />90.0 <br />63-124 <br />0.0231 <br />!02 <br />66-135 <br />Matrix Spike Du AJ71704-MSD1 <br />Source: 07JO507-01 <br />Prepared & Analyzed: <br />10/16/07 <br />Acetone <br />Benzene <br />0111 <br />0.020 mg/kg <br />0.0934 <br />0.090 <br />130 <br />0-181 1.91 25 <br />Bromobenzene <br />0.0169 <br />0.0050 <br />0.0237 <br />ND <br />71.3 <br />29-145 2.34 25 <br />Bromochloromethane <br />0.0106 <br />0.0050 <br />0.0237 <br />ND <br />44.7 <br />31-144 15.7 25 <br />Bromodichloromethane <br />0.0162 <br />0.0163 <br />0:0050 <br />0.0237 <br />ND <br />68.4 <br />58-129 5.41 25 <br />Bromoform <br />0.0050 <br />0.0237 <br />ND <br />68.8 <br />34160 9.36 25 <br />Bromomethane <br />0.0111 <br />0.0050 <br />0.0237 <br />ND <br />46.8 <br />22-166 18.8 25 <br />0.0203 <br />0.0050 <br />0.0237 <br />ND <br />85.7 <br />10-153 142 25 <br />The results in this report apply to the samples analyzed in accordance with the chain <br />Of custody docmnem. This analytical report must be reproduced in its entirety. <br />Bruce trove Director 10/222007 <br />, one <br />Corporate: 208 Mason St., UldahCA 95482 • PhLaboratory07 4 0401 <br />Service Center: 6398 Dougherty Rd., Suite 3, Dublin, CA 94568 ( Phone: (925) 828-622607)Fax: (925) 828-6309 <br />