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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 Fuel Station No. 1769, Stockton, CA <br />4005 Port Chicago Hwy, Suite 200 Project Number: 631036009.00321320 Reported: <br />Concord CA, 94520 Project Manager: Scott Bittinger 02/15/24 16:19 <br />DSP 13/14 -3.5' <br />T240742-13 (Soil) <br />Reporting <br />Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Note <br />SunStar Laboratories, Inc. <br />Extractable Petroleum Hydrocarbons by 8015B <br />Diesel Range Hydrocarbons ND 10 mg/kg 1 24BO250 02/14/24 02/15/24 EPA 8015B <br />Surrogate: p-Terphenyl 96.9% 65-135 <br />Metals by EPA 6010B <br />Lead 4.0 3.0 mg/kg 1 24BO241 02/14/24 02/15/24 EPA 6010b <br />Alcohols by EPA Method 8015 modified <br />Methanol ND 10 mg/kg 1 24BO249 02/14/24 02/15/24 EPA 8015m <br />Ethanol ND 10 " " " " " " <br />Volatile Or¢anic Compounds by <br />EPA Method 8260B <br />83.2-113 <br />1,2-Dibromoethane (EDB) <br />ND <br />2.5 ug/kg 1 24BO253 02/14/24 02/15/24 EPA 8260B <br />1,2-Dichloroethane <br />ND <br />2.5 " " " " <br />Naphthalene <br />ND <br />2.5 " <br />Benzene <br />ND <br />2.5 <br />Toluene <br />ND <br />2.5 <br />Ethylbenzene <br />ND <br />2.5 " <br />m,p-Xylene <br />ND <br />5.0 <br />o -Xylene <br />ND <br />2.5 <br />Tert-amyl methyl ether <br />ND <br />10 " <br />Tert-butyl alcohol <br />ND <br />25 <br />Di -isopropyl ether <br />ND <br />10 <br />Ethyl tert-butyl ether <br />ND <br />10 " <br />Methyl tert-butyl ether <br />ND <br />10 <br />TPH-GRO <br />ND <br />250 <br />Surrogate: Toluene -d8 <br />93.9% <br />83.2-113 <br />Surrogate: 4-Bromofluorobenzene <br />99.9% <br />82.9-116 " <br />Surrogate: Dibromofluoromethane <br />85.5% <br />80.4-132 " <br />SunStar Laboratories, Inc. <br />'�?Gt rn <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 18 of 32 <br />