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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Condor Earth Technologies Inc. Reported: 12/16/2019 12:29 <br /> P O Box 3905 Project: Soil Samples <br /> Sonora,CA 95370 Project Number: 8171 <br /> Project Manager: Zack Solow <br /> Organochlorine Pesticides (EPA Method 8081A) <br /> Quality Control Report - Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent Lab <br /> Constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Qualls <br /> QC Batch ID: B064541 Used client sample: N <br /> Aldrin MS 1936933-93 ND 0.0042949 0.0050847 mg/kg 84.5 50-140 <br /> MSD 1936933-93 ND 0.0041812 0.0049342 mg/kg 2.7 84.7 30 50-140 <br /> gamma-BHC(Lindane) MS 1936933-93 ND 0.0039912 0.0050847 mg/kg 78.5 50-140 <br /> MSD 1936933-93 ND 0.0039089 0.0049342 mg/kg 2.1 79.2 30 50-140 <br /> 4,4'-DDT MS 1936933-93 ND 0.0047475 0.0050847 mg/kg 93.4 50-140 <br /> MSD 1936933-93 ND 0.0047092 0.0049342 mg/kg 0.8 95.4 30 50-140 <br /> Dieldrin MS 1936933-93 ND 0.0046166 0.0050847 mg/kg 90.8 40-140 <br /> MSD 1936933-93 ND 0.0044934 0.0049342 mg/kg 2.7 91.1 30 40-140 <br /> Endrin MS 1936933-93 ND 0.0042441 0.0050847 mg/kg 83.5 50-150 <br /> MSD 1936933-93 ND 0.0041086 0.0049342 mg/kg 3.2 83.3 30 50-150 <br /> Heptachlor MS 1936933-93 ND 0.0041620 0.0050847 mg/kg 81.9 60-140 <br /> MSD 1936933-93 ND 0.0040684 0.0049342 mg/kg 2.3 82.5 30 60-140 <br /> TCMX(Surrogate) MS 1936933-93 ND 0.0094976 0.010169 mg/kg 93.4 20-130 <br /> MSD 1936933-93 ND 0.0092868 0.0098684 mg/kg 2.2 94.1 20-130 <br /> Decachlorobiphenyl(Surrogate) MS 1936933-93 ND 0.020749 0.020339 mg/kg 102 40-130 <br /> MSD 1936933-93 ND 0.020391 0.019737 mg/kg 1.7 103 40-130 <br /> The results in this repotl apply to the samples analyzed in accorclance with the chain ojcustocw document.This analytical report mast be reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting parte. BC Laboratories.Inc.assumes no responsibility for report alteration,separation,detachment or third panv interpretation. <br /> Report ID: 1000975422 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 27 of 31 <br />