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11 <br />Alpha VAnalytical Laboratories Inc. <br />e-mail: clientserAces@alpha-labs.com <br />TTRS Corp - Sac CHEMICAL EXAMINATION REPORT <br />2870 Gateway Oaks Dr., Suite 300 <br />Sacramento, CA 95833 <br />Attn: Chani Leimbach <br />Order Number <br />0710347 <br />Report Date: 10/22/07 07:24 <br />Project No: 18600251.02041 <br />Project ID: DTSC FMS24 Phase 2 <br />Receipt Date/Time Client Code Client PO/Reference <br />10/06/2007 13:00 URS -SAC <br />Metals by EPA 6000/7000 Series Methods - Quality Control <br />Page 22 of 68 <br />I Analyte(s) Spike Source %REC RPD <br />Result PQL Units Level Result %REC Limits RPD Limit Flag <br />Batch AJ71517 - Metals Digest <br />107 <br />94.0 <br />111 <br />102 <br />105 <br />100 <br />104 <br />95.5 <br />98.5 <br />10/1 <br />70-130 <br />70-130 <br />70-130 <br />70-130 <br />70-130 <br />70-130 <br />70.130 <br />70-130 <br />11.4 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />The results in this report apply to the samples analyzed in accordance with the chain <br />of document. This analytical report must be reproduced in its entirety. <br />Bruce GoveLaboratoDirector 10/22/2007 <br />Corporate: 208 Mason St., Ukiah, CA 95482 • Phone: (707) 46 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 />Source:07JO335-01 <br />Prepared: 10/15/07 <br />Banum <br />0.0116" <br />0.010 <br />Beryllium <br />ND <br />0.013 <br />C <br />0.010 " <br />ND <br />ND <br />0.010 <br />ND <br />C m <br />ND <br />0.050 <br />ND <br />Cob t <br />ND <br />0.020 <br />ND <br />Copp" <br />ND <br />0.10 <br />Lead <br />ND <br />0.050 " <br />ND <br />MolybdenumND <br />ND <br />0.50 <br />Nickel <br />ND <br />0.10 " <br />ND <br />Selenium <br />ND <br />0.0050 <br />NDNDSilver <br />ND <br />0.010 <br />Thallium <br />ND <br />0.40 <br />ND <br />Vanadium <br />ND <br />0.50 " <br />ND <br />Zinc <br />ND <br />0.10 <br />ND <br />ND <br />Matrix Spike (AJ71517-MSI) <br />Source: 07JO335-01 <br />Prepared <br />10/15/07 <br />Antimony <br />0.214 <br />0.020 mgA <br />0.200 <br />ND <br />Arsenic <br />0.0199�� <br />o.00zo <br />0.0200 <br />ND <br />Barium <br />0.235 <br />0.010 " <br />0.200 <br />0.013 <br />Beryllium <br />0.205 <br />0.010 <br />0.200 <br />ND <br />Cadmium <br />0.210 <br />0.010 <br />0.200 <br />ND <br />Chromium <br />0.201 <br />0.050 <br />0.200 <br />ND <br />Cobalt <br />0.207 <br />0.020 <br />0100 <br />ND <br />Copper <br />0.191 <br />0.10 " <br />0.200 <br />ND <br />Lead <br />0.197 <br />0.050 <br />0.200 <br />ND <br />107 <br />94.0 <br />111 <br />102 <br />105 <br />100 <br />104 <br />95.5 <br />98.5 <br />10/1 <br />70-130 <br />70-130 <br />70-130 <br />70-130 <br />70-130 <br />70-130 <br />70.130 <br />70-130 <br />11.4 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />The results in this report apply to the samples analyzed in accordance with the chain <br />of document. This analytical report must be reproduced in its entirety. <br />Bruce GoveLaboratoDirector 10/22/2007 <br />Corporate: 208 Mason St., Ukiah, CA 95482 • Phone: (707) 46 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 />