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QC Sample Results <br /> Client: Specialized Contracting Services Inc Job ID: 720-93292-1 <br /> Project/Site: Irby Ranch Stockpile <br /> Method: 8081A - Organochlorine Pesticides (GC) (Continued) <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 /> Aldrin 16.7 15.2 ug/Kg 91 65-120 <br /> Dieldrin 16.7 16.7 ug/Kg 100 72-120 <br /> Endrin aldehyde 16.7 17.0 ug/Kg 102 68-120 <br /> Endrin 16.7 17.1 ug/Kg 102 68-120 <br /> Endrin ketone 16.7 16.2 ug/Kg 97 75-136 <br /> Heptachlor 16.7 14.9 ug/Kg 89 69-120 <br /> Heptachlor epoxide 16.7 16.4 ug/Kg 99 68-120 <br /> 4,4'-DDT 16.7 14.0 ug/Kg 84 63-127 <br /> 4,4'-DDE 16.7 16.0 ug/Kg 96 76-126 <br /> 4,4'-DDD 16.7 14.6 ug/Kg 88 75-128 <br /> Endosulfan 1 16.7 16.7 ug/Kg 100 62-120 <br /> Endosulfan 11 16.7 17.2 ug/Kg 103 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 /> gamma-BHC(Lindane) 16.7 15.6 ug/Kg 94 72-120 <br /> delta-BHC 16.7 15.0 ug/Kg 90 43-125 <br /> Endosulfan sulfate 16.7 16.4 ug/Kg 98 72-121 <br /> Methoxychlor 16.7 13.5 ug/Kg 81 71-132 <br /> cis-Chlordane 16.7 16.3 ug/Kg 98 70-120 <br /> trans-Chlordane 16.7 16.2 ug/Kg 97 68-120 <br /> LCS LCS <br /> Surrogate %Recovery Qualifier Limits <br /> Tetrachloro-m-xylene 91 21-145 <br /> DCB Decachlorobiphenyl 99 21-136 <br /> Lab Sample ID: 720-93292-1 MS Client Sample ID: SP-A <br /> Matrix: Solid Prep Type: Total/NA <br /> Analysis Batch: 267037 Prep Batch: 266905 <br /> Sample Sample Spike MS MS %Rec. <br /> Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits <br /> Aldrin ND 16.6 15.3 ug/Kg 92 53-120 <br /> Dieldrin ND 16.6 17.7 ug/Kg 107 46-130 <br /> Endrin aldehyde ND 16.6 16.7 ug/Kg 101 40-120 <br /> Endrin ND 16.6 18.5 ug/Kg 112 32-143 <br /> Endrin ketone ND 16.6 18.3 ug/Kg 110 40-120 <br /> Heptachlor ND 16.6 15.6 ug/Kg 94 52-120 <br /> Heptachlor epoxide ND 16.6 17.2 ug/Kg 104 40-120 <br /> 4,4'-DDT 2.2 16.6 20.2 ug/Kg 108 17-144 <br /> 4,4'-DDE 5.7 F1 16.6 26.7 F1 ug/Kg 126 40-120 <br /> 4,4'-DDD ND 16.6 17.5 ug/Kg 105 40-120 <br /> Endosulfan I ND 16.6 16.8 ug/Kg 101 40-120 <br /> Endosulfan II ND 16.6 17.7 ug/Kg 107 40-120 <br /> alpha-BHC ND 16.6 14.9 ug/Kg 90 40-120 <br /> beta-BHC ND 16.6 18.7 ug/Kg 113 40-120 <br /> gamma-BHC(Lindane) ND 16.6 16.3 ug/Kg 98 58-120 <br /> delta-BHC ND 16.6 16.3 ug/Kg 98 40-120 <br /> Endosulfan sulfate ND 16.6 17.5 ug/Kg 105 40-120 <br /> Methoxychlor ND 16.6 16.0 ug/Kg 96 40-120 <br /> Eurofins TestAmerica, Pleasanton <br /> Page 44 of 61 6/10/2019 <br />