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SunStar <br />Laboratories, Inc. <br />PROVIDING QUALITY ANALYTICAL SERVICES NATIONWIDE <br />25712 Commercentre Drive <br />Lake Forest, California 92630 <br />949.297.5020 Phone <br />949.297.5027 Fax <br />Aptim - Concord Project: Safeway Station - Country Club Blvd - Stockton <br />4005 Port Chicago Hwy, Suite 200 Project Number: 63103 6009.00321320 Reported: <br />Concord CA, 94520 Project Manager: Scott Bittinger 02/09/24 15:56 <br />Extractable Petroleum Hydrocarbons by 8015B - Quality Control <br />SunStar Laboratories, Inc. <br />Reporting Spike Source %REC RPD <br />Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br />Batch 24BO162 - EPA 3510C GC <br />Blank (24B0162-BLK1) <br />Prepared & Analyzed: 02/08/24 <br />Diesel Range Hydrocarbons <br />ND <br />0.050 mg/1 <br />Surrogate: p-Terphenyl <br />LCS (24B0162 -BSI) <br />2.45 <br />2.00 122 <br />Prepared & Analyzed: 02/08/24 <br />65-135 <br />Diesel Range Hydrocarbons <br />12.1 <br />0.050 mg/1 10.0 121 <br />75-125 <br />Surrogate: p-Terphenyl <br />LCS Dup (24B0162-BSD1) <br />2.33 <br />2.00 117 <br />Prepared & Analyzed: 02/08/24 <br />65-135 <br />Diesel Range Hydrocarbons <br />12.2 <br />0.050 mg/1 10.0 122 <br />75-125 1.44 20 <br />Surrogate: p-Terphenyl <br />2.23 <br />" 2.00 111 <br />65-135 <br />SunStar Laboratories, Inc. <br />Joann Marroquin, Director of Operations <br />The results in this report apply to the samples analyzed in accordance with the chain of <br />custody document. This analytical report must be reproduced in its entirety. <br />Page 5 of 12 <br />