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PArialytical <br />,• <br />r�Alpha Laboratories Inc. <br />e-mail: clientservices@alpha-labs.com <br />CHEMICAL EXAMINATION REPORT <br />URS Corp - Sac Pace 42 of 50 <br />2870 Gateway Oaks Dr., Suite 300 Report Date: 10/22/07 07:09 <br />Sacramento, CA 95833 <br />Attn: Chani Leimbach Project No: 18600251.02041 <br />Project o: DTSC FM24 Phase 2 <br />Order Number Receipt Date/Time <br />0770352 Client Code Client PO/Reference <br />10/06/2007 13:00 URS -SAC <br />Volatile Organic Compounds by EPA Method 8260B - Quality Control <br />Analyte(s) Result PQL Units Spike <br />Level Source °/6REC RPD <br />Result °/oREC Limits RPD Limit Flag <br />Batch AJ71704 - VOAs in Soil GCMS <br />LCS <br />1,3 -Dichlorobenzene <br />Prepared & Analyzed: 10/16/07 <br />1,4 -Dichlorobenzene <br />0.0200 <br />0.0050 " <br />0.0250 <br />80.0 <br />74-128 <br />Dichlorodifluoromethane <br />0.0223 <br />0.0050 " <br />0.0250 <br />77-119 <br />I,1-Dichloroethme <br />0.0250 <br />0.0050 <br />0.0250 <br />100 <br />100 <br />45-180 <br />1,2-Dichloroethane <br />0.0230 <br />0.0050 <br />0.0250 <br />92.0 <br />74-124 <br />1,1-Dichloroethene <br />0.0238 <br />0.0050 <br />0.0250 <br />95.2 <br />76-113 <br />cis-1,2-Dichloroethene <br />0.0256 <br />0.0050 <br />0.0250 <br />102 <br />80-134 <br />trans-1,2-Dichloroethene <br />0.0250 <br />0.0231 <br />0.0050 ^ <br />0.0250 <br />100 <br />82.126 <br />1,2-Dichloropropane <br />0.0050 " <br />0.0250 <br />81-126 <br />1,3-Dichloropropme <br />0.0254 <br />0.0050 " <br />0.0250 <br />102 <br />102 <br />82-116 <br />2,2-Dichloropmpane <br />0.0221 <br />0.0050 " <br />0.0250 <br />88.4 <br />76-131 <br />1,1-Dichloropropme <br />0.0290 <br />0.0050 ^ <br />0.0250 <br />6 <br />80-120 <br />cis-1,3-Dichloropropene <br />00244 <br />0.0050 " <br />0.0250 <br />977.6 <br />72-117 <br />trans-1,3-Dichloropropene <br />0.0303 <br />0.0050 <br />0.0250 <br />121 <br />81-130 <br />Ethylbenzene <br />0.0206 <br />o.aoso <br />0.0250 <br />82.4 <br />75-123 <br />Hexachlorobutadienc <br />0.0229 <br />0.0050 ^ <br />0.0250 <br />91.6 <br />86-120 <br />lsopropylbenzene <br />0.0218 <br />0.0050 " <br />0.0250 <br />87.2 <br />75-127 <br />P-Isopropyltoluene <br />0.0203 <br />0.0050 " <br />0.0250 <br />81.2 <br />76-115 <br />Methyl ethyl ketone <br />0.0214 <br />0.0050 " <br />0.0250 <br />77-124 <br />Methyl isobutyl ketone <br />0.0710 <br />0.015 ^ <br />0.0500 <br />142 <br />53-146 <br />Methyl tert-butyl ether <br />0.0540 <br />0.010 <br />0.0500 <br />108 <br />70-130 <br />Methylene chloride <br />0.0270 <br />0.0050 " <br />0,0250 <br />lOS <br />75-140 <br />Naphthalene <br />0.0263 <br />0.0050 <br />0.0250 <br />105 <br />71-128 <br />n-Propylbenzene <br />0.0270 <br />0.0050 <br />0.0250 <br />108 <br />68-156 <br />Styrene <br />0.0227 <br />0.0050 " <br />0.0250 <br />90.8 <br />75-133 <br />0.0252 <br />0.0050 <br />0.0250 <br />101 <br />76-133 <br />• <br />The results in this report apply to the samples mralyzed in accordonce with the choirs <br />of t=tody document Thu analytical report must be reproduced in its entirety. • <br />Bruce GoLboratorvye <br />Direcr <br />Corporate: 208 Mason St., Ukiah, CA 95482 • Phone: (707) 46 0401• Fax: (707) 468-5267 10/22/2007 <br />Service Center: 6398 Dougherty Rd., Suite 3, Dublin, CA 94568 • Phone: (925) 828-6226 0 Fax: (925) 828-6309 <br />