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Pangea Table 2.Groundwater Analytical Data-324 East 11 th Street,Tracy,California 0 Notes Final ESL for groundwater,non-dw: 640 640 500 27 130 43 100 1,800 18,000 N/A NA N'A 77 100 Final ESL for groundwater,dw: 100 100 100 1 0 40 30 20 5 1_ A,A N N A 0 0S 0 5 11_L"1 Date Sample Depth Sample ID Sampled (ft-ft) B-1 7/8/2013 9-15 33,000 72,000 6,200 750 16 20 <5.0 <1.2 43 <1 ' -1' -1' B-2 7/8/2013 8-15 -- -- <50 <0.5 <0.5 <0.5 <0.5 <5.0 - --- --- --- --- --- B-3 7/8/2013 11-15 -- -- <50 <0.5 <0.5 <0.5 <0.5 <5.0 - --- --- --- --- --- B4 7/8/2013 10-15 <250 310 200 <0.5 071 <0.5 <0.5 <5.0 - -- --- --- B-5 7/8/2013 23-25 -- -- <50 <0.5 <0.5 <0.5 <0.5 <5.0 - --- --- --- --- B-6 7/8@013 9-15 250 3,600 7,300 <5.0 18 200 <5.0 <5.0 <20 5 0 SO 5 0 0 n Ezolanation: Benzene,Toulene,Ethybenzene and Xylenes by EPA Method 8021B or 8260B. TPHg=Total Petroleum Hydrocarbons as Gasoline. TPHd=Total Petroleum Hydrocarbons as Diesel by EPA Method 8015. TPHmo=Total Petroleum Hydrocarbons as Motor Oil. MTBE=Methyl tertiary butyl ether by EPA Method 8021B or 8260B. TBA=t-Butyl alcohol by EPA Method 8260. TAME=tert-amyl methyl ether by EPA Method 8260. DIPE=Diisopropyl ether by EPA Method 8260. ETBE=Ethyl tert-butyl ether by EPA Method 8260. EDB=1,2-Dibromoethane by EPA Method 8260. 1,2-DCA=1,2-Dichloroethane by EPA Method 8260. Ng/L=micrograms per Liter <n=Chemical not present at a concentration in excess of detection limit shown. -=Not analyzed ft-ft=Approximate groundwater sample depth interval,in feet below grade surace. ESL=Environmental Screening Level for groundwater,Groundwater is not a current or potential source of drinking water.(Table F-I b). ESL=Environmental Screening Level for Groundwater,groundwater is a current or potential source of drinking water.(Table F-I a). ESL established by the SFBRWQCB,Interim Final-February 2005 and amended in February 2013. Bold=Concentration above ESLs for groundwater,drinking water non-dw=groundwater is not a current or potential scurce of drinking water dw=groundwater is a current or potential source of drinking water Notes: 1=Methanol and Ethanol not detected above laboratory reporting limits.