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Table 2 <br /> Summary of Soil Analytical Results , Total Petroleum Hydrocarbons <br /> DTSC - Gordon Research Company Property , Manteca , California <br /> RV009808 . 0000 <br /> 0 <br /> N CO <br /> U N U <br /> U <br /> U o_ U <br /> c _U O <br /> o <br /> U) U) 0 <br /> Analyte : 0 p� ° <br /> Method: EPA 8015B EPA 8015B EPA 8015B <br /> Units: mg/Kg mg/Kg mg/Kg <br /> Sample ID Date Sampled Depth * <br /> Quality Control Summary <br /> Duplicate Samples <br /> 13 -20-0 . 5 06/23/ 10 0 . 5 < 1 . 0 11 120 <br /> DUP3 06/24/ 10 - - <0 . 98 12 100 <br /> RPD ( % ) 2 % 9 % 18 % <br /> All samples analyzed by Curtis & Tompkins , Ltd . , Berkeley , California <br /> < = Not detected above laboratory reporting limit indicated . <br /> -- = Not Analyzed or Not Applicable <br /> = Depth measured in feet below ground surface <br /> mg/Kg = Milligrams per kilogram <br /> RPD = Relative Percent Difference <br /> CHHSLs = California Human Health Screening Levels , Cal -EPA (January 2005 ) . <br /> ESLs = Environmental Screening Levels , RWQCB ( May 2008 ) . Table K- 1 ; <br /> Direct Exposure Soil Screening Levels for Residential Exposure Scenario . <br /> RSLs = Regional Screening Levels , USEPA ( May 2010 ) . <br /> Comparison criteria applicability : primary comparison criteria are CHHSLs , if available . <br /> If CHHSLs are not available , ESLs are used . If ESLs are not available , RSLs are used <br /> to evaluate whether maximum concentration is above criteria . <br /> Concentrations in bold typeface were reported above the comparison criteria . <br /> Tables 1 -9_PEA Work Plan Addendum- RV009808 . xis <br /> 4/20/2011 ARCADIS Page 2 of 2 <br />