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SunStar <br />Laboratories, Inc. <br />PROVIDING QUALITY ANALYTICAL SERVICES NATIONWIDE <br />25712 Commereentre 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 />Tank Pit Water (TPW) <br />T240644-01 (Water) <br />Reporting <br />Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br />SunStar Laboratories, Inc. <br />Extractable Petroleum Hydrocarbons by 8015B <br />Diesel Range Hydrocarbons 0.095 0.050 mg/l 1 24BO162 02/08/24 02/08/24 EPA 8015B D-06 <br />Surrogate: p-Terphenyl 132% 65-135 <br />Volatile Organic Compounds by EPA Method 8260B <br />Benzene ND 0.50 ug/l 1 2480140 02/08/24 02/08/24 EPA 8260B <br />Toluene ND 0.50 " <br />Ethylbenzene ND 0.50 " <br />m,p-Xylene ND 2.0 " <br />o -Xylene ND 0.50 " <br />TPH-GRO ND 50 " <br />Surrogate: 4-Bromofluorobenzene 97.8% 76.7-116 <br />Surrogate: Dibromofduoromethane 101% 78.7-127 <br />Surrogate: Toluene -d8 99.8% 84.7-108 " <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 4 of 12 <br />