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Table 8 -- Soil Matrix Samples from Groundwater Locations <br /> Volatile Organics EPA 5030B/8260B Results <br /> (concentrations in mg/kg=ppm) <br /> Soil Matrix Cis- <br /> Sample Number 1,1- 1,1- 1,2- Ethyl- Freon 12 TCE PCE Toluene m,p-Xylenes o-Xylene <br /> (Depth) DCE DCA DCE Benzene <br /> GW-1(20') <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.010 <0.005 <br /> GW-1(50') <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.010 <0.005 <br /> GW-2(10') <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.010 <0.005 <br /> GW-2(27') <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.010 <0.005 <br /> GW-3(10') <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.010 <0.005 <br /> GW-3(10')dupl <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.010 <0.005 <br /> GW-3(27') <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.010 <0.005 <br /> GW-4(10') <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.010 <0.005 <br /> GW-4(27') <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.010 <0.005 <br /> RSLs(mg/kg)* 1,100 17 2,000 27 400 14 2.6 45,000 2,600 3,000 <br /> *Regional Screening Levels(RSLs)for industrial soils, <br /> Region IX EPA,Nov.2011 <br /> Table 9-Groundwater Samples <br /> Volatile Organics EPA 5030B/8260B Results <br /> (concentrations in ug/L=ppb) <br /> Groundwater Chloro 11- 1,1- Cis- 1,2- Ethyl- m,p- 0- <br /> Sample Number Benzene form DCE DCA 1,2- Dichloro Benzene Freon 12 TCE PCE Toluene Xylenes Xylene <br /> (Depth) DCE propane <br /> GW-1 21.4 <1 <1 <1 <1 14.8 <1 <1 <1 <1 <1 <2 <1 <br /> GW-2 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <br /> GW-3 <1 7.53 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <br /> GW-4 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <br /> MCLS(ug/L)* 1 80 7 5 6 5 300 unl 5 5 150 total xylenes <br /> 1750 <br /> *MCL-EPA Maximum Contaminant Level for drinking water <br /> unl=unlisted for this compound <br /> Limited Phase II Environmental Site Assessment Report Pinnacle Environmental,Inc. <br /> 248 Industrial Avenue,Stockton,CA 95206 Page 23 <br />