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PRECISION <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OF ANALYSIS <br /> Tuesday,May 31, 2005 <br /> !� Attention: Doug Heard <br /> Kleinfelder,Inc. Reporl Page 7 of 14 <br /> 2825 Myrtle St. <br /> Stockton,CA 95205 <br /> Organochlorine Pesticides by EPA Method 8081A <br /> Sample Information <br /> Sample ID: 31171 -S4 Sample Type: Grab <br /> Laboratory ID: 5051807-04 Project Name: 55568 <br /> I Daie/Time Sampled. 17-May-05 13:30 by Ryan 6586 Sample Matrix: Soil <br /> i <br /> Test Parameter Result DLR Unit Dilution Batch Prepared Analysis Date Method Notes <br /> Aldrin ND 1.70 uglkg 1 AE53114 18-May-05 31-May-05 EPA 8081A <br /> alpha-BHC NO 3.30 uglkg 1 AE53114 1B-May-05 31-May-05 EPA 8081A <br /> 1{L beta-8HC ND 3.30 ugfkg 1 AE53114 18-May-05 31-May-05 EPA 8081A <br /> delta-BHC ND 3.30 ug/kg 1 AE53114 18-May-05 31-May-05 EPA 8081A <br /> gamma-BHC(Lindane) ND 1.70 ug/kg 1 AE53114 18-May-05 31May-05 EPA 8081A <br /> Chlordane(tech) ND 33.0 ug/kg 1 AE53114 18-May-05 31-May-05 EPA 8081A <br /> 4,4'-DDR ND 3.30 ugAg 1 AE53114 18-May-05 31 May05 EPA 8081A <br /> 4,4'-DDE ND 3.30 ug/kg 1 AE53114 18-May-05 31-May-05 EPA 8081A <br /> 4,4'-DDT ND 3.30 uglkg 1 AE53114 1B-May-05 31-May-05 EPA 8081A <br /> Dieldrin ND 3.30 uglkg 1 AE53114 18-May-05 31-May-05 EPA 8081A <br /> Endosulfan 1 ND 1.70 ug/kg 1 AE53114 18-May-05 31-May-05 EPA 8081A <br /> Endosulfan 11 ND 3.30 ug/kg 1 AE53114 18-May-05 31-May-05 EPA 8081A <br /> Endosulfan sulfate NO 3.30 ug/kg 1 AE53114 18-May-05 31-May-05 EPA 8081A <br /> Endrin NO 1.70 uglkg 1 AE53114 18-May-05 31-May-05 EPA 8081A <br /> Endrin aldehyde ND 6.60 ug/kg 1 AE53114 18-May-05 31-May-05 EPA 8081A <br /> Heptachkor ND 1.70 ug/kg 1 AE53114 18-May-05 31-May-05 EPA 8081A <br /> Heptachlor epoxide ND 1.70 ug/kg 1 AE53114 18-May-05 31-May-05 EPA 8081A <br /> r <br /> Methoxychlor ND 6.60 ug/kg 1 AE53114 18-May-05 31-May-05 EPA 8081A <br /> Toxaphene ND 66.0 ug/kg 1 AE53114 18-May-05 31-May-05 EPA 8081A <br /> G Surrogate:Decachicrobiphenyl(DCB) 9311. 23-157 <br /> I <br /> a <br /> xrg1L=nuffigau ns per bier=ppm DLII=Dcleclloo Limir for Porpore jReponir�g. <br /> ob/L-wicrogmrm Jnr Liler=ppb aceprional—pie matrices ur mferferencer umy <br /> result in higher dcfeerinn limils. <br /> RESPECTFULLY SUBMITTED, <br /> e- <br /> lonathan.Le,Laboratory Director <br /> 7743N West Lane. Suite B2 Stockton C.'4. 95210 nhol ('209) 477-8105 Fa (209) 477-8144 <br />