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TABLE 2 <br /> HISTORIC GROUNDWATER MONITORING DATA AND ANALYTICAL RESULTS <br /> 2360 East Street,Tracy,CA <br /> Page 5 of 5 <br /> Well/ Date DTW W TOG/ TPHho TPHd TPHg B T E X MTBE �'DCA, MsOH EtOH VOCs SVOcs PCBs Metals <br /> ELEV TRPH EDBI . <br /> Sample ID feet (1t MSL) <br /> MW5 10/04/07 8.54 19.35 - -- <50 <50 <0.5 <0.5 <0.5 <1.0 <0.5 <0.5' - <0.5-<5.0 - - - <br /> (27.891' 02/06/08 7.81 20.08 - - - <50 I <0.5 <0.5 <0.5 <1.0 - - - - - - <br /> Cr 8.3 <br /> 07129/08 8.63 19.06 - - - <50 <0.5 <0.5 4.5 <1.0 - - - - - -- CrVl6A <br /> Mo<5.0 <br /> Cr 24 <br /> 09/30/08 8.88 19.01 - - - <W <0.5 <0.5 <0.5 <1.0 <0.5 <0.5" - - - - CrVl8.7 <br /> Mo 0 <br /> 12r2l/081 8.511 19.38 1 - I - - <W 4.5 <0.5 <0.5 <1.0 <0.5 <0.5` - <0.5-<5.0 _ - <br /> Notes <br /> DTW = Depth to Water VEX = Benzene,toluene,ethybenzene,xylenes by-EPA 8015M <br /> GW ELEV. = Calculated Groundwater Elevation-DTW subtracted from(well elevation) MTBE = Methyl ter-butyl ether by EPA 8020 or EPA 8260B <br /> MSL = Relative to Mean Sea Level VOCs = Volatile Organic Compounds by EPA 8260B <br /> TOG = Total Oil and Grease by EPA 1664 SVOCs = Semivolatile Organic Compounds by EPA 8270C <br /> TRPH = Total Recoverable Petroleum Hydrocarbons by EPA 8015M PCBs = Polychlorinated Biphenyls by EPA 8082 <br /> TPHho = Total Petroleum Hydrocarbons as hydraulic oil by EPA 8015M MTBE = Methyl tart-butyl ether by EPA 8020 or EPA 8260B <br /> TPHd = Total Petroleum Hydrocarbons as diesel by EPA 8015M Oxys = Oxygenated gasoline additives by EPA 8260B <br /> TPHg = Total Petroleum Hydrocarbons as gasoline by EPA 8015M DCA,EDB = 1,2-Dichloroethane and Ethylene Dibron ide by EPA 82608 <br /> Cd,Cr,Pb,Ni,Zn = Cadmium,Chromium,Lead,Nickel,Zinc by EPA 200.8;Chromium VI by EPA 218.6 McOH,EtOH = Methanol and Ethanol by EPA 82WB <br /> BB,PB,IPB,TMB = Butylbenzene,Propylbenzene,Isoprobylbenzene,Trimethylbenzene by EPA 8260B Napth = Naphthalene by EPA 82608 <br /> IPT,TCA,TCFM = lsopropyltoluene,1,9,2-Dichloroethane,Trichlorofluoromethane by EPA 82608 Bis(2-e)P = Bis(2-ethylhexyl)P tthalate by EPA 8270C <br /> < = Less than indicated laboratory method detection limit(Not Detected) - = Not Analyzed <br /> = Detection limit for all analytes,except for t-Butanol,which is 1 Ox greater 4L = Micrograms per Liter <br /> = DCA and EDB not analyzed <br /> = Well elevations surveyed relative to City of Tracy Benchmark at Grant LinalEast Street(28.16 feet MSL) <br />