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Table 4 <br /> Summary of Soil Analytical Results , PCBs <br /> DTSC - Gordon Research Company Property , Manteca , California <br /> RV009808 . 0000 <br /> (O 009q N MqT ` - LO CO <br /> O <br /> O N N N N N N <br /> r r <br /> IL <br /> O O O O O O O <br /> 6 U U U U T5 U <br /> O O O O O O O <br /> Analyte: Q Q Q Q Q Q Q <br /> Method: EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 EPA 8082 <br /> Units: lag/ Kg pg/Kg pg/Kg pg/Kg lag/Kg pg / Kg pg/Kg <br /> Sample ID Date Sampled Depth" <br /> B-2-0 . 5 06/24/ 10 0 . 5 < 12 <24 < 12 < 12 < 12 < 12 < 12 <br /> B-4-0 . 5 06/23/ 10 0 . 5 < 12 <24 < 12 < 12 < 12 < 12 < 12 <br /> B-6 -0 . 5 06/23/ 10 0 . 5 <66 < 130 <66 <66 260 210 470 <br /> B-6-2 . 0 06/23/ 10 2 . 0 < 12 <24 < 12 < 12 < 12 < 12 < 12 <br /> B-7-0 . 5 06/23/ 10 0 . 5 < 12 <24 < 12 < 12 < 12 < 12 < 12 <br /> B- 11 -0 . 5 06/23/ 10 0 . 5 < 12 <24 < 12 < 12 < 12 < 12 < 12 <br /> 13- 12-0 . 5 06/23/ 10 0 . 5 < 12 <24 < 12 < 12 < 12 < 12 < 12 <br /> B- 14-0 . 5 06/23/ 10 0 . 5 < 12 <24 < 12 < 12 < 12 < 12 18 <br /> B- 17-0 . 5 06/23/ 10 0 . 5 < 12 <24 < 12 < 12 < 12 < 12 < 12 <br /> B-20-0 . 5 06/23/10 0 . 5 < 12 <24 < 12 < 12 < 12 < 12 200 <br /> B-30-0 . 5 06/23/ 10 0 . 5 < 12 <24 < 12 < 12 < 12 < 12 < 12 <br /> B-36-0 . 5 06/23/10 0 . 5 < 12 < 24 < 12 < 12 < 12 < 12 < 12 <br /> B-39-0 . 5 06/24/ 10 0 . 5 < 12 <24 < 12 < 12 < 12 < 12 < 12 <br /> S-3 06/24/ 10 -- < 12 <24 < 12 < 12 < 12 < 12 51 <br /> Statistical Summary <br /> Total Number of Samples : 14 14 14 14 14 14 14 <br /> Number of Detects : 0 0 0 0 1 1 4 <br /> Maximum Concentration : <66 < 130 <66 <66 260 210 470 <br /> Minimum Concentration : < 12 <24 < 12 < 12 < 12 < 12 < 12 <br /> Average Concentration : 15 . 9 31 . 6 15. 9 15 . 9 29. 7 26 . 1 61 . 4 <br /> Standard Deviation : 14 . 4 28 . 3 14 . 4 14. 4 66 . 3 52 . 9 128 <br /> Comparison Criteria (Converted to pg/Kg for comparison to above soil results) <br /> CHHSLs 89 89 89 89 89 89 89 <br /> ESLs <br /> RSLs <br /> Is maximum concentration (or detection <br /> limit if result is ND) below YES NO YES YES NO NO NO <br /> Quality Control Summary <br /> Duplicate Samples <br /> B-20-0 . 5 06/23/ 10 0 . 5 < 12 <24 < 12 < 12 < 12 < 12 200 <br /> DUP3 06/24/ 10 0 . 5 < 12 <24 < 12 < 12 < 12 < 12 28 <br /> RPD % 0 % 1 0% 1 0% 1 0% 1 0% 1 0 % 1 151 % <br /> All samples analyzed by Curtis & Tompkins , Ltd . , Berkeley , California <br /> < = Not detected above laboratory reporting limit indicated . PCB = Polychlorinated Biphenyls <br /> = Not Analyzed or Not Applicable RPD = Relative Percent Difference <br /> = Depth measured in feet below ground surface <br /> pg/Kg = Micrograms per kilogram . <br /> CHHSLs = California Human Health Screening Levels , CakEPA (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. If CHHSLs are not available , <br /> ESLs are used . If ESLs are not available , RSLs are used 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 Addend um-RV009808. As <br /> 4/20/2011 ARCADIS Page 1 of 1 <br />