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/__--lake Analytical <br /> r' EN':IRDN M11E NiAL SCIENCES <br /> Kleinfelder,Inc.-Rancho Cordova Reported: 06/21/2022 14:57 <br /> 2882 Prospect Park,Suite 200 Project: Tracy Costco UST Removal <br /> Rancho Cordova,CA 95670 Project Number: 20223491.00A <br /> Project Manager: Paolo Dizon <br /> Volatile Organic Analysis (EPA Method 826013/5035) <br /> BCL Sample ID: 2214240-04 Client Sample Name: P-4,6/17/2022 10:42:OOAM <br /> MB Lab <br /> Constituent Result Units PQL MDL Method Bias Quals DCN <br /> Ethyl t-butyl ether ND mg/kg 0.0045 0.00045 EPA-82608 ND 1 <br /> Total Purgeable Petroleum ND mg/kg 0.18 0.052 Luft-GC/MS ND 1 <br /> Hydrocarbons <br /> 1,2-Dichloroethane-d4(Surrogate) 119 % 70-121 (LCL-UCL) EPA-82608 <br /> Toluene-d8(Surrogate) 103 % 81-117 (LCL-UCL) EPA-8260B 1 <br /> 4-Bromofluorobenzene(Surrogate) 94.6 % 74-121 (LCL-UCL) EPA-82608 1 <br /> Run QC <br /> DCN Method Prep Date Date/Time Analyst Instrument Dilution Batch ID Prep Method <br /> 1 EPA-8260B 06/20/22 10:00 06/20/22 15:59 EAB MS-V17 0.891 B142226 EPA 5035 Soil MS <br /> DCN=Data Continuation Number <br /> The results in this report apply io the samples analyzed in accordance With the chain of custody document.This analytical report must be reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration,separation,detachment or third party interpretation. <br /> Report ID: 1001318187 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 25 of 79 <br />