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0 <br /> CALIFORNIA TVICES <br /> Page 24 of 28 <br /> 07/27/06 10:19 <br /> ENGEO-Tracy Project: North Lathrop Properties <br /> 2880 N.Tracy Blvd Ste 43 Project Number: 5044.5.001.01 CLS Fork Order#:CPG0655 <br /> Tracy,CA 95376 Project Manager: Zac Crawford COC 4:69131 <br /> Metals (Dissolved) by EPA 200 Series Methods - Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch C005476-601OA/No Digestion <br /> Matrix Spike(CP05476-MSI) Source:CPG0651-01 Prepared&Analyzed:07/21/06 <br /> Aluminum 1810 50 µg2 2000 36 88.7 75-125 25 <br /> Barium 2100 20 2000 100 100 75-125 25 <br /> Chromium 222 10 200 ND 111 75-125 25 <br /> Copper 253 10 250 4.6 99.4 75-125 25 <br /> Iron 1000 100 1000 ND 100 75-125 25 <br /> Manganese <br /> Nickel 510 20 „ 500 ND 102 75-125 25 <br /> 500 20 500 ND 100 75-125 25 <br /> Zinc 527 20 500 ND 105 75-125 25 <br /> Boron 2480 50 2500 65 96.6 75-125 25 <br /> Matrix Spike IDup(CP05476-MSIDI) Source:CPG0651-01 Prepared&Analyzed:07/21/06 <br /> Aluminum 2120 50 pg/L 2000 36 104 75-125 15.8 25 <br /> Barium 2460 20 2000 100 118 75-125 15.8 25 <br /> Chromium 261 10 200 ND 130 75-125 16.1 25 <br /> QM-7 <br /> Copper <br /> 297 10 250 4.6 117 75-125 16.0 25 <br /> Iron 1170 100 1000 ND 117 75-125 15.7 25 <br /> Manganese 598 20 500 ND 120 75-125 15.9 25 <br /> Nickel 589 20 500 ND 118 75-125 16.3 25 <br /> Zinc 615 20 500 ND 123 75-125 15.4 25 <br /> Boron 2910 50 2500 65 114 75-125 16.0 25 <br /> Batch CP05548-EPA 3020A <br /> Blank(CP05548-BLKI) Prepared:07/25/06 Analyzed:07/26/06 <br /> Arsenic ND 2.0 pg/L <br /> Lead ND 5.0 „ <br /> Thallium ND 5.0 " <br /> CA DOHS FLAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova,CA 95742 www.californialab.corn 916-638-7301 Fax: 916-633-4510 <br />