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CASTLE ANALYTICAL LABORATORY <br /> Environmental Testing Services 2333 Shuttle Drive,Atwater,CA 95301 Phone: (209)384-2930 <br /> Certificate No.2480 Fax: (209)384-1507 <br /> BSK Analytical Laboratories Client Project ID:A9H1897 Sampled:08-09-19 <br /> 1414 Stanislaus St. Lab Reference Number: 1908057 Received:08-20-19 <br /> Fresno,CA 93706 Sample Description:Soil Extracted:08-21-19 <br /> Attn:Adam Trevarrow Sample Prep/Analysis Method: EPA 3550180158 Analyzed:08-22-19 <br /> Lab Numbers: 1908057-01, 02 Reported:08-23-19 <br /> TOTAL PETROLEUM HYDROCARBONS- DIESEL AND MOTOR OIL RANGE <br /> ANALYTE REPORTING LIMIT SAMPLE ID SAMPLE ID <br /> Floor East Floor West <br /> A9H1897-01 A9H1897-02 <br /> (mg/kg) (mg/kg) (mg/kg) <br /> DIESEL RANGE <br /> HYDROCARBONS 1.0 5.2 5.4 <br /> C10-C24 <br /> MOTOR OIL RANGE <br /> HYDROCARBONS 2.0 32 26 <br /> C24-C40 <br /> Report Limit Multiplication Factor: 1 1 <br /> non-diesel non-diesel <br /> pattern' pattern' <br /> 'non-diesel pattern;heavier hydrocarbons overlap into diesel range. <br /> o-Terphenyl Surrogate Recovery: 78.5% 99.5% <br /> Instrument ID: HP-Diesel HP-Diesel <br /> Analytes reported as ND were not detected or below the Practical Quantitation Limit <br /> Practical quantitation Limit=Reporting Limit x Report Limit Multiplication Factor <br /> Extraction Solvent-Methylene Chloride 1 <br /> APPROVED BY: <br /> Clar JJ. Cone/Laborqfory Director or <br /> Cassandra J.A. Ivan y/Chemist <br /> Page 14 of 16 <br />