Laserfiche WebLink
Table 4 <br /> Summary of Soil Analytical Results, PCBs <br /> DTSC-Gordon Research Company Property, Manteca,California <br /> RV009808.0000 <br /> (O N N Co V O <br /> N co V V LO (O <br /> O N N N N N N <br /> O O O O O O O <br /> U U U U U U 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: pg/Kg pg/Kg pg/Kg pg/Kg pg/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 /> B-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 /> 13-39-0.5 1 06/24/10 1 0.5 <12 1 <24 <12 <12 <12 <12 <12 <br /> S-3 1 06/24/10 1 -- 1 <12 1 <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 1 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% 0% 0% 00% 0% 0% 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.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. 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 Addendum-RV009808.xls <br /> 4/20/2011 ARCADIS Page 1 of 1 <br />