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0 <br />Alpha Analytical Laboratories Inc. a -mail: clientservices@alpha-labs.com <br />CHEMICAL EXAMINATION REPORT Page 29 of 68 <br />URS Corp - Sac <br />2870 Gateway Oaks Dr., Suite 300 <br />Sacramento, CA 95 83 3 <br />Attn: Chard Leimbach <br />Order Number Receipt DatwTime Client Code <br />0710347 10/06/2007 13:00 URS -SAC <br />Report Date: 10/22/07 07:24 <br />Project No: 18600251.02041 <br />Project ID: DTSC FMS24 Phase 2 <br />Client PO/Reference <br />Metals by EPA 6000/7000 Series Methods - Quality Control <br />Spike Source °/0EC RPD <br />Analyte(s) Result PQL Units Level Result /REC Limits RpD Limit Flag <br />Batch AJ71541- EPA 3051 Microwave <br />78.3 <br />Batch AJ71607 - EPA 7470A <br />Source: <br />10 1.20.0 60 91.5 70-130 <br />10/18/07 Analyzed: 10/19/07 <br />Mercer ND 0.0010 mg/l <br />20 QM -04 <br />The resalts in this report apply to the samples analyzed in accordance with the chain <br />of curtody docwnent. This analytical report must be reproduced in its entirety.-`� ,` <br />Bruce Gove 10/22/2007 <br />Laboratory Director <br />Corporate: 208 Mason St., Ukiah, CA 95482 • Phone: (707) 468-0401 • Fax: (707) 468-5267 <br />Service Center: 6398 Dougherty Rd., Suite 3, Dublin, CA 94568 • Phone: (925) 828-6226 • Fax: (925) 828-6309 <br />Prepared: 10/18/07 Analyzed: 10/19/07 <br />LCS AJ71607-BSl <br />Mercury <br />0.00231 0.0010 mg/1 <br />0.00250 92.4 80-120 <br />Duplicate AJ71607-DUPl <br />Source: 07JO347-01 <br />Prepared: 10/18/07 Analyzed: 10/19/07 <br />Mercury <br />ND 0.0010 mgA <br />ND 20 <br />Matrix Spike AJ71607-MS1 <br />Source:07JO347-01 <br />Prepared: 10/18/07 Analyzed: 10/19/07 <br />Mercury <br />0.00246 0.0010 mg/l <br />0.00250 ND 98.4 60-140 <br />Matrix Spike AJ71607-MS2 <br />Source: 07JO389-03 <br />Prepared: 10/18/07 Analyzed: 10/19/07 <br />Mercury <br />0.00210 0.0010 mg/l <br />0.00250 ND 75.2 60-140 <br />Matrix Spike Du(V71607-MSDl <br />Source: 07J0347-01 <br />Prepared: 10/18/07 Analyzed: 10/19/07 <br />0.00247 0.0010 mgA <br />0.00250 ND 98.8 60-140 0.406 20 <br />Mercury <br />The resalts in this report apply to the samples analyzed in accordance with the chain <br />of curtody docwnent. This analytical report must be reproduced in its entirety.-`� ,` <br />Bruce Gove 10/22/2007 <br />Laboratory Director <br />Corporate: 208 Mason St., Ukiah, CA 95482 • Phone: (707) 468-0401 • Fax: (707) 468-5267 <br />Service Center: 6398 Dougherty Rd., Suite 3, Dublin, CA 94568 • Phone: (925) 828-6226 • Fax: (925) 828-6309 <br />