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Sequoia 8195Mkerento,C Suite <br /> ■-�.-./J_ Sacramento,CA 95834 <br /> (916)921-9600 <br /> FAX(916)92 1-0100 <br /> Analytical w .sequolalabs.ccm <br /> a. <br /> Kleinfelder-Stockton Project: Mountain House 5303253 <br /> 2825 East Myrtle Street Project Number: 21073 Reported: <br /> Stockton CA,95205 Project Manager: Doug Heard 03/26/03 18:34 <br /> Organochlorine Pesticides by EPA Method 8081A- Quality Control <br /> Star Analytical, Inc. <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch V3C2412-EPA 3550 <br /> `Blank(V3C2412-BLKI) Prepared:03/24/03 Analyzed:03/25/03 <br /> Aldrin ND 1.00 ug/kg <br /> alpha-BHC ND 1.00 " <br /> beta-BHC ND 1.00 " <br /> delta-BHC ND 1.00 " <br /> gamma-BHC(Lindane) ND 1.00 " <br /> ralpha-Chlordane ND 5.00 <br /> gamma-Chlordane ND 2.00 " <br /> 4,4'-DDD ND 6.00 " <br /> X4,4'-DDE ND 6.00 " <br /> 4,4%DDT ND 6.00 " <br /> Dieldrin ND 2.00 " <br /> Endosulfan 1 ND 2.00 " <br /> �Endosutfm B ND 2.00 " <br /> Endosulfan sulfate ND 6.00 " <br /> Endrin ND 2.00 " <br /> .Endrin aldehyde ND 6.00 " <br /> Heptachlor ND 2.00 <br /> Heptachlor epoxide ND 2.00 " <br /> `Mctho tychlor ND 20.0 " <br /> Toxaphene ND 80.0 " <br /> Surrogate:TCMX 9.50 8.33 114 34-192 <br /> Surrogate.Decachlorobiphenyl 10.3 16.7 122 1-236 <br /> Laboratory Control Sample(V3C2412-BSI) Prepared:03/24/03 Analyzed:03/25/03 <br /> Aldrin 4.22 1.00 ug/kg 3.33 127 59.4-177 <br /> `gamma-BHC(Lindane) 3.92 1.00 3.33 118 35-156 <br /> 4,4'-DDT 7.77 6.00 8.33 93.3 84-155 <br /> Dieldrin 9.88 2.00 8.33 119 60-133 <br /> Endrin 6.77 2.00 8.33 81.3 22-147 <br /> Heptachlor 4.60 2.00 3.33 138 57-148 <br /> Surrogate:TCMX 9.52 8.33 114 34-192 <br /> Surrogate:Decachlorobiphenyl 21.5 16.7 119 1-236 <br /> r <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document. This analytical report must be reproduced in its entirety. <br /> r <br /> Page 7 of 9 <br />