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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 /> Base Neutral and Acid Extractables Organic Analysis (EPA Method 8270C) <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 /> Acenaphthene BSH1942 BSH1942-BS1 LCS 35.324 50.000 2.0 ug/L 70.6 61-127 <br /> 1,4-Dichlorobenzene BSH1942 BSH1942-BS1 LCS 34.043 50.000 2.0 ug/L 68.1 49-126 <br /> 2,4-Dinitrotoluene BSH1942 BSH1942-BS1 LCS 40.468 50.000 2.0 ug/L 80.9 48-139 <br /> - ----- -------- - --------------- ----- <br /> Hexachlorobenzene BSH1942 BSH1942-BS1 LCS 23.116 50.000 2.0 ug/L 46,2 62-135 LOt <br /> Hexachiorobutadiene BSH1942 BSH1942-BS1 LCS 28.711 _ 50.000 2.0 ug/L 57.4 40-111 <br /> Hexachloroethane BSH1942 BSH1942-BSI LCS 33.026 50.000 2.0 ug/L 66.1 35-128 <br /> Nitrobenzene BSH1942 BSH1942-BS1 LCS 34.805 50.000 2.0 ug/L 69.6 59-123 <br /> 1,2,4-Trichlorobenzene BSH1942 BSH1942-BS1 LCS 34.075 50.000 2.0 ug/L 68.2 55-119 <br /> 4-Chloro-3-methylphenol BSH1942 BSH1942-BS1 LCS 36.109 50.000 5.0 ug/L 72.2 57-139 <br /> 2-Chlorophenol BSH1942 BSH1942-BSI LCS 33.208 50.000 2.0 ug/L 66.4 51-120 <br /> 2-Methylphenol BSH1942 SSH1942-BS1 LCS - 30.359 50.000 - 2.0 - ug/L 60.7 38-130 - - <br /> 3-&4-Methylphenol BSH1942 BSH1942-BS1 LCS 50.783 100.00 2.0 ug/L 50.8 36-101 <br /> 4-Nitrophenoi BSH1942 BSH1942-BS1 LCS 15.454 50.000 2.0 ug/L 30.9 13-66 <br /> Pentachlorophenol BSH1942 SSH1942-BS1 LCS 38.020 50.000 10 ug/L 76.0 33-165 <br /> Phenol BSH1942 BSH1942-BSI LCS 16.888 50.000 2.0 ug/L 33.8 19-67 <br /> 2,4,6-Trichlorophenol BSH1942 BSH1942-BS1 LCS 36.225 50.000 5.0 ug/L 72.4 60-144 -_ <br /> 2-Fluorophenol(Surrogate) BSH1942 BSH1942-BS1 LCS 47.478 80.000 ug/L 59.3 17-115 <br /> Phenol-d5(Surrogate) BSH1942 BSH1942-BSI LCS 29.138 80.000 ug/L 36.4 17-77 <br /> Nitrobenzene-d5(Surrogate) BSH1942 BSH1942-BS1 LCS 59.802 80.000 ug/L 74.8 60-136 <br /> 2-Fiuorobiphenyl(Surrogate) BSH1942 BSH1942-BS1 LCS 55.782 80.000 ug/L 69.7 57-135 <br /> 2,4,6-Tribromophenoi(Surrogate) BSH1942 BSH1942-BSI LCS 72.270 80.000 ug/L 90.3 55-172 <br /> p-Terphenyl-d14(Surrogate) BSH1942 BSH1942-BS1 LCS 27.887 40.000 ug/L 69.7 -46-185 <br /> The results in this report apply to the samples analysed in accordance with the chain of crrstodp 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 Adas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 67 of 83 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />