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Alpha Pal ical Laboratories Inc. =mail ntservicesi�alpha-labs.com <br />URS Corp -Sac CHEMICAL EXAMINATION REPORT Page 63 of 68 <br />2870 Gateway Oaks Dr., Suite 300 Report Date: 10/22/07 07:24 <br />Sacramento, CA 95833 Project No: 18600251.02041 <br />Attn: Chani Leimbach Project ID: DTSC FMS24 Phase 2 <br />Order Number Receipt DatetTime Client Code <br />0770347 10/06/2007 13:00 URS -SAC <br />Client PO/Reference <br />Volatile Organic Compounds by EPA Method 8260B - Quality Control <br />Spike Source o/�C RPD <br />Analyte(s) Result PQL Units Level Result %REC Limits RPD Limit Flag <br />Batch A171704 - VOAs in Soil GCMS <br />Matrix Spike (AJ -71704 -MSI) <br />Source: 07JO507-01 <br />Prepared & Analyzed: <br />10/16/07 <br />n-Propylbenzene <br />0.0136 <br />0.0050 <br />0.0231 <br />ND <br />58.9 <br />0-171 <br />Styrene <br />0.0151 <br />0.0050 <br />0.0231 <br />ND <br />65.4 <br />0-172 <br />1,0,2 -Tetrachloroethane <br />0.0171 <br />0.0050 <br />0.0231 <br />ND <br />74.0 <br />25-159 <br />1,1,2,2 -Tetrachloroethane <br />0.00905 <br />0.0050 <br />0.0231 <br />ND <br />392 <br />38-127 <br />Tetrachloroethene <br />0.0191 <br />0.0050 <br />0.0231 <br />ND <br />82.7 <br />35-145 <br />Toluene <br />0.0156 <br />0.0050 <br />0.0231 <br />ND <br />67.5 <br />33-148 <br />1,2,3-Trichlorobenzene <br />0:00938 <br />0.0050 <br />0.0231 <br />ND <br />40.6 <br />0-166 <br />1,2,4-Tricldorobenzene <br />0.00958 <br />0.0050 <br />0.0231 <br />ND <br />41.5 <br />0-172 <br />1,1,1 -Trichloroethane <br />0.0188 <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 />0.0209 <br />0.0050 <br />0.0231 <br />ND <br />90.5 <br />38-143 <br />Trichlorofluoromethane <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-Trichloropropene <br />0.0150 <br />0.0050 <br />0.0231 <br />ND <br />64.9 <br />50-121 <br />12,4-Trlmethylbenzene <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 />602 <br />25-155 <br />Vinyl chloride <br />0.0206 <br />0.0050 <br />0.0231 <br />ND <br />89.2 <br />44-149 <br />m,p-Xylene <br />0.130 <br />0.0050 <br />0.0461 <br />0.16 <br />NR <br />15-162 <br />o -Xylene <br />0.0548 <br />0.0050 <br />0.0231 <br />0.061 <br />NR <br />22-157 <br />QM -05 <br />Xylenes (total) <br />0.185 <br />0.0050 <br />0.0692 <br />0.22 <br />NR <br />14-158 <br />QM -05 <br />QM -05 <br />Surrogate: Dibromofluoromethone 0.0108 <br />Surrogate: Toluene -d8 0.0235 <br />0.0231 883 69-134 <br />0.0231 90.0 63-124 <br />0.0231 102 66-135 <br />Matrix Spike Dup (AJ71704-MSDI) Source: 07JO507-01 Prepared & Analyzed: 10/16/07 <br />The results in this report apply to the samples analyzed in accordance with the chain <br />of custody document. This analytical report must be reproduced in its entirety. <br />Bruce oDirector 10/22/2007 <br />Corporate: 208 Mason St., Uldah, CA 95482 • Phone: Laboratory 07) 468-0401 • Fax: (707) 468-5267 <br />Service Center: 6398 Dougherty Rd., Suite 3, Dublin, CA 94568 0 Phone: (925) 828-6226 • Fax: (925) 828-6309 <br />