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IM� �abo�atoYzes 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 /> Base Neutral and Acid Extractables Organic Analysis (EPA Method 27 ) <br /> Quality Control Report- Precision & Accuracy <br /> Cont o� 1 Limits <br /> Source Source Spike Percent Percent <br /> Constituent Batch ID QC Sample Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Lab Quals <br /> Pentachlorophenol BSH1942 Matrix Spike 0909743-22 ND 39.077 50.000 ug/L 78.2 30-166 <br /> Matrix Spike Duplicate 0909743-22 NO 36.636 50.000 ug/L 6.5 73.3 30 30-166 <br /> Phenol BSH1942 Matrix Spike 0909743-22 ND 18.377 50.000 ug/L 36.8 21-66 <br /> Matrix Spike Duplicate 0909743-22 NO 16.804 50.000 ug/L 9.1 33.6 30 21-66 <br /> 2,4,6-Trichlorophenol BSH1942 Matrix Spike 0909743-22 NO 38.895 50.000 ug/L 77.8 54-146 <br /> Matrix Spike Duplicate 0909743-22 NO 34.419 50.000 ug/L 12.3 68.8 26 54-146 <br /> 2-Fluorophenol(Surrogate) BSH1942 Matrix Spike 0909743-22 ND 52.157 80.000 ug/L 65.2 17-115 <br /> Matrix Spike Duplicate 0909743-22 ND 47,556 80.000 ug/L 59.4 17-115 <br /> Phenol-d5(Surrogate) BSH1942 Matrix Spike 0909743-22 ND 31,879 80.000 ug/L 39.8 17-77 <br /> Matrix Spike Duplicate 0909743-22 ND 29.003 80.000 ug/L 36.3 17-77 <br /> Nitrobenzene-d5(Surrogate) BSH1942 Matrix Spike 0909743-22 ND 67.161 80.000 ug/L 84.0 60-136 <br /> Matrix Spike Duplicate 0909743-22 ND 60.996 80,000 ug/L 76.2 60-136 <br /> 2-Fluorobiphenyl(Surrogate) BSH1942 Matrix Spike 0909743-22 NO 61.811 80.000 ug/L 77.3 57-135 <br /> Matrix Spike Duplicate 0909743-22 NO 55.015 80.000 ug/L 68.8 57-135 <br /> 2,4,6-Tribromophenol(Surrogate) BSH1942 Matrix Spike 0909743-22 NO 75.632 80.000 ug/L 94.5 55-172 <br /> Matrix Spike Duplicate 0909743-22 ND 68.924 80.000 ug/L 86.2 55-172 <br /> p-Terphenyl-d14(Surrogate) BSH1942 Matrix Spike 0909743-22 ND 29.542 40,000 ug/L 73.9 46-185 <br /> Matrix Spike Duplicate 0909743-22 ND 26,907 40,000 ug/L 67.3 46-185 <br /> The results in this report apply to the samples analysed in accordance with the chain o/'custody 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 party.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 58 of 83 <br /> Certifications: Cai'lfomia-ELAP Certification Num186; Nevada Administrative Code-NAC-445A <br />