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QC Sample Results <br /> Client: Ghilotti Construction Company Inc Job ID: 720-93317-1 <br /> Project/Site: Hayward 680 Alamo <br /> Method: 8081A - Organochlorine Pesticides (GC) (Continued) <br /> Lab Sample ID: MB 720-266905/1-A Client Sample ID: Method Blank <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 267037 Prep Batch: 266905 <br /> MB MB <br /> Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac <br /> alpha-BHC ND 2.0 0.55 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> beta-BHC ND 2.0 0.36 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> Chlordane(technical) ND 40 3.2 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> cis-Chlordane ND 2.0 0.40 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> delta-BHC ND 2.0 0.44 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> Dieldrin ND 2.0 0.59 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> Endosulfan I ND 2.0 0.32 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> Endosulfan 11 ND 2.0 0.49 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> Endosulfan sulfate ND 2.0 0.38 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> Endrin ND 2.0 0.46 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> Endrin aldehyde ND 2.0 0.63 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> Endrin ketone ND 2.0 0.33 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> gamma-BHC(Lindane) ND 2.0 0.63 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> Heptachlor ND 2.0 0.46 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> Heptachlor epoxide ND 2.0 0.35 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> Methoxychlor ND 2.0 0.68 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> Toxaphene ND 40 6.8 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> trans-Chlordane ND 2.0 0.46 ug/Kg 06/05/19 13:57 06/07/19 08:03 1 <br /> MB MB <br /> Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac <br /> DCB Decachlorobiphenyl 99 21-136 06/05/19 13:57 06/07/19 08:03 1 <br /> Tetrachloro-m-xylene 90 21-145 06/05/19 13:57 06/07/19 08:03 1 <br /> Lab Sample ID: LCS 720-266905/2-A Client Sample ID: Lab Control Sample <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 267037 Prep Batch: 266905 <br /> Spike LCS LCS %Rec. <br /> Analyte Added Result Qualifier Unit D %Rec Limits <br /> 4,4'-DDD 16.7 14.6 ug/Kg 88 75-128 <br /> 4,4'-DDE 16.7 16.0 ug/Kg 96 76-126 <br /> 4,4'-DDT 16.7 14.0 ug/Kg 84 63-127 <br /> Aldrin 16.7 15.2 ug/Kg 91 65-120 <br /> alpha-BHC 16.7 15.2 ug/Kg 91 46-122 <br /> beta-BHC 16.7 17.1 ug/Kg 102 78-136 <br /> cis-Chlordane 16.7 16.3 ug/Kg 98 70-120 <br /> delta-BHC 16.7 15.0 ug/Kg 90 43-125 <br /> Dieldrin 16.7 16.7 ug/Kg 100 72-120 <br /> Endosulfan 1 16.7 16.7 ug/Kg 100 62-120 <br /> Endosulfan II 16.7 17.2 ug/Kg 103 65-120 <br /> Endosulfan sulfate 16.7 16.4 ug/Kg 98 72-121 <br /> Endrin 16.7 17.1 ug/Kg 102 68-120 <br /> Endrin aldehyde 16.7 17.0 ug/Kg 102 68-120 <br /> Endrin ketone 16.7 16.2 ug/Kg 97 75-136 <br /> gamma-BHC(Lindane) 16.7 15.6 ug/Kg 94 72-120 <br /> Heptachlor 16.7 14.9 ug/Kg 89 69-120 <br /> Heptachlor epoxide 16.7 16.4 ug/Kg 99 68-120 <br /> Methoxychlor 16.7 13.5 ug/Kg 81 71-132 <br /> trans-Chlordane 16.7 16.2 ug/Kg 97 68-120 <br /> Eurofins TestAmerica, Pleasanton <br /> Page 20 of 31 6/7/2019 <br />