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llLaboratories Inc. I <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 - Laboratory Control Sample <br /> Control Limits <br /> Spike Percent Percent <br /> Constituent Batch ID QC Sample ID QC Type Result Level PQL Units Recovery RPD Recovery RPD Lab Quals <br /> Aluminum BSH1124 BSH1124-BS1 LCS 1046.9 1000.0 50 ug/L 105 85-115 <br /> Antimony BSH1124 BSH1124-BS1 LCS 393.77 400.00 100 ug/L 98.4 85-115 <br /> Barium BSHll24 BSH1124-BS1 LCS 415.95 400.00 10 ug/L 104 85-115 <br /> Beryllium BSH1124 BSH1124-BSI LCS 216.13 200.00 10 ug/L 108 85-115 <br /> Cadmium BSH1124 SSH1124-BS1 LCS 211.54 200.00 10 ug/L 106 85-115 <br /> Chromium BSH1124 BSH1124-BS1 LCS 210.38 200.00 10 ug/L 105 85-115 <br /> Cobalt BSH1124 BSH1124-BS1 LCS 216.66 200.00 50 ug/L 108 85-115 <br /> -- - -- --- - --_..............------- <br /> Copper BSH1124 BSH1124-BSI LCS 400.50 400.00 10 ug/L 100 85-115 <br /> - -- - ------------------...------ <br /> Iron BSH1124 BSH1124-BSI LCS 1066.0 1000.0 50 ug/L 107 85-115 <br /> Silver BSH1124 BSHl l24-BS1 LCS 98.145 100.00 10 ug/L 98.1 85-115 <br /> Tin BSH1124 BSH1124-BS1 LCS 211.83 200.00 50 ug/L 106 85-115 <br /> Thallium BSH1124 BSH1124-BSI LCS 426.65 400.00 100 ug/L 107 85-115 <br /> Vanadium BSH1124 BSH1124-BS1 LCS 207.95 200.00 10 ug/L 104 85-115 <br /> Zinc BSH1124 BSH1124-BS1 LCS 554.56 500.00 10 ug/L 111 85-115 <br /> Mercury BSH1672 BSH1672-BS1 LCS 1.0350 1.0000 0.20 ug/L 104 85-115 <br /> Arsenic BSH1794 BSH1794-BS1 LCS 97.707 100.00 2.0 ug/L 97.7 85-115 <br /> Lead BSH1794 BSH1794-BS2 LCS 100.25 100.00 1.0 ug/L 100 85-115 <br /> Manganese BSH1794 BSH1794-BS1 LCS 98.819 100.00 1.0 ug/L 98,8 85-115 <br /> Nickel BSH1794 BSH1794-BS1 LCS 97.085 100.00 2.0 ug/L 97,1 85-115 <br /> Selenium BSH1794 BSH1794-BS2 LCS 96.550 100.00 2.0 ug/L 96.6 85-115 <br /> The results in this report apply to the samples analyzed in accordance wish the chain ojcuslodv document.This analytical report must he 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 altetation,separation,detachment or third party interpretation. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 69 of 83 <br /> Certifications: California-ELAP Certification Number 1186: Nevada Administrative Code-NAC-445A <br />