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0 <br />/V vv. �- <br />Alpha Analytical Laboratories Inc. e-mail: clientservices@alpha-labs.com <br />CHEMICAL EXAMINATION REPORT Page 19 of 50 <br />URS Corp - Sac <br />2870 Gateway Oaks Dr., Suite 300 <br />Sacramento, CA 95833 <br />Attn: Chani Leimbach <br />Order Number _ Receipt Date/Time Client Code <br />0710352 10/06/2007 13:00 URS -SAC <br />Report Date: 10/22/07 07:09 <br />Proj ect 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 />Batch AJ71541- EPA 3051 Microwave <br />Prepared: 10/15/07 Analyzed: 10/18/07 <br />Blank AJ71541-BLK1 <br />Spike <br />Source <br />Antimony <br />0/ULhU <br />15 mg/kg <br />xru <br />ND <br />Result <br />PQL <br />Units <br />Level <br />Result <br />a/uREC <br />Limits <br />RPD <br />Limit Flag <br />Analyte(s) <br />Chromium <br />ND <br />5.0 " <br />Batch AJ71517 - Metals Digest <br />Source: <br />07JO335-01 <br />Prepared: <br />10/15/07 <br />Analyzed: 10/16/07 <br />Matrix Spike Du AJ71517-MSDI <br />0.020 <br />0.200 <br />ND <br />105 <br />70-130 <br />1.89 <br />20 <br />Antimony <br />0.210 <br />mg/l <br />0.0201 <br />0.0020 <br />0.0200 <br />ND <br />95.0 <br />70-130 <br />1.00 <br />20 <br />Arsenic <br />0.229 <br />0.010 <br />0200 <br />0.013 <br />108 <br />70-130 <br />2.59 <br />20 <br />Ban <br />0.199 <br />0.010 <br />0.200 <br />ND <br />99.5 <br />70-130 <br />2.97 <br />20 <br />B <br />0204 <br />0.010 <br />0.200 <br />ND <br />102 <br />70-130 <br />2.90 <br />20 <br />C <br />0.202 <br />0.050 <br />0.200 <br />ND <br />101 <br />70-130 <br />0.496 <br />20 <br />Chromium <br />0.203 <br />0.020 <br />0.200 <br />ND <br />102 <br />70-130 <br />1.95 <br />20 <br />Cobalt <br />0.191 <br />0.10 <br />0.200 <br />ND <br />95.5 <br />70-130 <br />0.00 <br />20 <br />Copper <br />0.190 <br />0.050 <br />0.200 <br />ND <br />95.0 <br />70-130 <br />3.62 <br />20 <br />Lead <br />0.211 <br />0.50 <br />0.200 <br />ND <br />106 <br />70-130 <br />0.943 <br />20 <br />Molybdenum <br />0.175 <br />0.10 <br />0.200 <br />ND <br />87.5 <br />70-130 <br />3.92 <br />20 <br />Nickel <br />0.0166 <br />0.0050 <br />0.0200 <br />ND <br />83.0 <br />25-136 <br />0.604 <br />20 <br />Selenium <br />0.180 <br />0.010 <br />0200 <br />ND <br />90.0 <br />70-130 <br />3.28 <br />20 <br />Silver <br />0.207 <br />0.40 <br />0.200 <br />ND <br />104 <br />70-130 <br />0.484 <br />20 <br />Thallium <br />0.196 <br />0.50 <br />0.200 <br />ND <br />98.0 <br />70-130 <br />1.54 <br />20 <br />Vanadium <br />0.213 <br />0.10 <br />0.200 <br />ND <br />106 <br />70-130 <br />4.59 <br />20 <br />Zinc <br />Batch AJ71541- EPA 3051 Microwave <br />The results in this report apply to the samples analyzed in accordance with the chain <br />of document This analytical report mast be reproduced in its entirety. --✓Z _� . � <br />or <br />Bruce Gove 10/222007 <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: 10/15/07 Analyzed: 10/18/07 <br />Blank AJ71541-BLK1 <br />Antimony <br />ND <br />15 mg/kg <br />Arsenic <br />ND <br />2.0 ° <br />Barium <br />ND <br />10 " <br />Beryllium <br />ND <br />0.75 " <br />Cadmium <br />ND <br />1.0 " <br />Chromium <br />ND <br />5.0 " <br />The results in this report apply to the samples analyzed in accordance with the chain <br />of document This analytical report mast be reproduced in its entirety. --✓Z _� . � <br />or <br />Bruce Gove 10/222007 <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 />