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819 Stoker Avenue,Suite 8 <br /> Sequoia Sacra <br /> D <br /> mento,CA 95834 <br /> (916)921-9600 <br /> FAX(916)921-0100 <br /> Analyticalw .sequolalabs.com <br /> r <br /> 1Cleinfelder-Stockton Project: Mtn House 5303233 <br /> 2825 East Myrtle Street Project Number: 27.117 Reported: <br /> Stockton CA,95205 Project Manager: Doug Heard 03/26/03 18:27 <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 R NWIt %REC Limits RPD limit Notes <br /> Batch VX2412-EPA 3550 <br /> Wo Laboratory Control Sample Dup(V3C2412-BSD1) Prepared: 03/24/03 Analyzed:03/25/03 <br /> Aldrin 3.55 1.00 ug/kg 3.33 107 59.4-177 17.2 16.7 A-03 <br /> gamma-BHC(Lindane) 3.40 1.00 3.33 102 35-156 14.2 30 <br /> -4,4'-DDT 9.43 6.00 8.33 113 84-155 19.3 13 A-03 <br /> Dieldrin 8.77 2.00 8.33 105 60-133 11.9 21 <br /> Endrin 9.43 2.00 8.33 113 22-147 32.8 12 A-03 <br /> yHeptachlor 3.97 2.00 " 3.33 119 57-148 14.7 48 <br /> Surrogate:TCMX 7.12 8.33 85.5 34-192 <br /> Surrogate:Decachlorobiphenyl 22.8 16.7 137 I-236 <br /> ''Matrix Spike(V3C2412-MS1) Source:5303233-02 Prepared:03/24/03 Analyzed:03/25/03 <br /> Aldrin 3.12 1.00 ug/kg 3.33 ND 93.7 60-130 <br /> gamma-BHC(Lindane) 3.10 1.00 3.33 ND 93.1 60-130 <br /> a„4,4'-DDT 8.68 600 8.33 ND 104 60-130 <br /> Dieldrin 9.17 2.00 8.33 ND 110 60-130 <br /> Endrin 9.55 2.00 8.33 ND 115 60-130 <br /> Heptachlor 3.85 2.00 3.33 ND 116 60-130 <br /> loo <br /> Surrogate:TCMX 9.10 8.33 110 34-192 <br /> Surrogate:Decachlorobiphenyl 22.2 16.7 133 1-236 <br /> r Matrix Spike Dup(V3C2412-MSDl) Source:5303233-02 Prepared:03/24/03 Analyzed:03/25/03 <br /> Aldrin 3.18 1.00 ug/kg 3.33 ND 95.5 60-130 1.90 30 <br /> gamma-BHC(Lindane) 3.13 1.00 3.33 ND 94.0 60-130 0.963 30 <br /> 4,4'-DDT 9.18 6.00 8.33 ND 110 60-130 5.60 30 <br /> Dieldrin 9.27 2.00 8.33 ND 111 60-130 1.08 30 <br /> Endrin 9.65 2.00 8.33 ND 116 60-130 1.04 30 <br /> Heptachlor 3.73 2.00 3.33 ND 112 60-130 3.17 30 <br /> Surrogate:TGMX 9.00 8.33 108 34-191 <br /> Surrogate:Decachlorobiphenyl 22.7 16.7 136 1-136 <br /> r_ <br /> a. <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 /> Page 8 of 9 <br /> r� <br />