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Table 4 <br /> Summary of Analytical Groundwater Data <br /> CCT Stockton Railyard <br /> 1645 Cherokee Road <br /> Well Date TPH-g TPH-d TPH-mo Benzene Toluene Ethylbenzene Total X lenes MTBE, 1,2 DCA TBA <br /> Number Sampled <br /> Concentrations in micrograms per liter(pg/1) <br /> MW-6 6/24/2008 <50 140 <500 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <5.0 <br /> 11/20/2oo8 59 <50 --- 0.91 <0.50 <0.50 <1.0 <0.50 <0.50 <5.0 <br /> 2/24/2009 <50 1,800 46o <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <5.0 <br /> 5/29/2009 <50 56 <300 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <5.0 <br /> 11/18/2009 <50 <50 <300 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <4.0 <br /> 7/28/2010 <50 <51 <310 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <4.0 <br /> MW-7 6/24/2oo8 <50 320 <500 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <5.0 <br /> 11/20/2oo8 65 68 --- <0.50 <0.50 <0.50 <1.0 <0.50 i.3 <5.0 <br /> 2/24/2009 <50 96 <300 <0.50 <0.50 <0.50 <1.0 <0.50 1.9 <5.0 <br /> 5/29/2009 6o <50 <300 <0.50 <0.50 <0.50 <1.0 <0.50 2.2 35 <br /> 11/18/2009 55 <52 <310 <0.50 <0.50 <0.50 <1.0 <0.50 3.1 <4.0 <br /> 7/28/2010 <50 <51 <310 <0.50 <0.50 <0.50 <1.0 <0.50 3.3 <4.0 <br /> Notes: <br /> Hydrocarbon reported does not match the diesel standard;probably degraded diesel. <br /> ** Analysis based on insufficient sample because of laboratory QA/QC problems. <br /> NS = Not Sampled-Well Dry <br /> NA = Not Available <br /> --- = Not Analyzed <br /> < = Indicates that the compound was not detected at or above the stated laboratory reporting limit <br /> bold = Analyte detected above laboratory detection limit <br /> TPH-g = Total petroleum hydrocarbons as gasoline(C5-C12) <br /> TPH-d = Total petroleum hydrocarbons as diesel(C10-C28) <br /> TPH-mo = Total petroleum hydrocarbons as motor oil(C24-C36) <br /> MTBE = Methyl tert-butyl ether <br /> 1,2 DCA =1,2 Dichloroethane <br /> TBA = Tert-Butyl Alcohol <br />