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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Shaw Project: Foothill LF,SJ County-5 year Reported: 09/03/2009 16:26 <br /> 1326 North Market Boulevard Project Number: 124591 <br /> Sacramento,CA 95834 Project Manager: Sheila Richgels <br /> Water Analysis (Metals) <br /> Quality Control Report- Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent <br /> Constituent Batch ID QC Sam Ele Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Lab Quals <br /> Nickel BSH1794 Duplicate 0910759-01 0.79200 0.74200 ug/L 6.5 20 J <br /> Matrix Spike 0910759-01 0.79200 100.47 102.04 ug/L 97.7 70-130 <br /> Matrix Spike Duplicate 0910759-01 0.79200 101.03 102.04 ug/L 0.5 98.2 20 70-130 <br /> Selenium BSH1794 Duplicate 0910759-01 ND ND ug/L 20 <br /> Matrix Spike 0910759-01 ND 103.69 102.04 ug/L 102 70-130 <br /> Matrix Spike Duplicate 0910759-01 ND 104.18 102.04 ug/L 0 102 20 70-130 <br /> The results in this report apply to the samples analyzed in accordance with the chain orcnslodv document.This analytical report must be reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting parry. BC Laboratories.Inc.assumes no responsibility for report alteration,separation,detachment or third party interpretation. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 63 of 83 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />