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TABLE 1 Page 8 of 8 <br /> SUMMARY OF SOIL VAPOR ANALYTICAL RESULTS <br /> FORMER NESTLE FACILITY <br /> RIPON,CALIFORNIA <br /> Sample Sample Depth Methylene <br /> Location ID City Zoning Collection Date (feet bgs) PCE TCE cis-1,2-DCE Vinyl Chloride Chloroform Chloride <br /> Residential ESL' 15 16 280 0.32 4.1 34 <br /> Commercial/Industrial ESL' 67 100 1,200 5.2 18 410 <br /> Maximum Sewer Background Z 550 85 20 3.3 4,000 110 <br /> 5.0 3.2 <1.2 <0.89 <O.S7 28 <1.6 <br /> Residential <br /> SV-124 (R1UC) 07/27/2021 10.0 2 <1.2 <0.90 <0.58 49 <1.6 <br /> 15.0 3.2 4.4 <0.87 <0.56 86 <1.5 <br /> 5.0 <1.5 <1.2 <0.86 <0.56 3.1 <1.5 <br /> Residential <br /> SV-125 (R1UC) 07/27/2021 10.0 <1.5 <1.2 <0.90 <0.58 9.9 <1.6 <br /> 15.0 <1.5 <1.2 <0.90 <0.58 1.1 <1.6 <br /> SV-126 <br /> Residential 07/29/2021 5.0 2.2 <1.2 <0.88 <0.56 <1.1 <1.5 <br /> (R1UC) 15.0 2.3 <1.2 <0.87 <0.56 1 3.4 1 <1.5 <br /> 5.0 4 2.6 <0.11 <0.036 0.62 0.99 <br /> Residential <br /> SV-127 (R1UC) 07/30/2021 10.0 3.8 7.1 <0.11 <0.037 0.82 <1.0 <br /> 15.0 2.8 55 <0.12 <0.04 1.2 <1.1 <br /> Notes: <br /> bgs=below ground surface <br /> cis-1,2-DCE=cis-1,2-Dichloroethene <br /> ESL=Environmental Screening Level,San Francisco Bay Regional Water Quality Control Board,January 2019 <br /> J=Result is estimated <br /> J+=Result is estimated,biased high. <br /> PCE=Tetrachloroethene <br /> Ql,Q2,Q3,Q4=first,second,third,and fourth quarter respectively. <br /> TCE=Trichloroethene <br /> Bold=Compound was detected in the sample above the reporting limit <br /> 1.Subslab/Soil Gas Vapor Intrusion:Human Health Risk Levels(Table SG-1) <br /> 2.Values reported in 6-6 of McHugh&Beckley(2018)for typical background concentrations in urban settings;values for Ripon sewers may be different. <br /> 3.Volatile organic compounds analyzed by United States Environmental Protection Agency Method TO-15. <br /> 4.Site chemicals of concern(plus PCE)are shown;for a complete list of analytes,see the laboratory analytical reports. <br /> Concentrations reported in micrograms per cubic meter(pg/m3). <br /> Multiple values indicate primary/duplicate sample results. <br /> HALEY&ALDRICH,INC. NOVEMBER 2021 <br /> \\haleyaldrich.com\share\oak_common\Nestle\Nestle Ripon\6.Supplemental Investigations\6.2 VI Assess ment\2021_08 VI Evaluation WP\2-Tables\Tablel_Soil Vapor Results_DF.xlsx <br />