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<br /> Table 5
<br /> Groundwater Analytical Data- Fuel Oxygenates and VOCs
<br /> South Shore Parcels - Parcel 2A and Adjacent Areas
<br /> West Weber Avenue and North Lincoln Street
<br /> Stockton, California
<br /> sec- ]so- p-Iso- 4-Iso- 1,2,4-Tri- 1,3,5-Tri-
<br /> Methylene n-Butyl- Tert-Butyl- butyl- propyl- propyl- propyl- Naph- Propyl- n-Propyl- methyl- mothyl- Other
<br /> Sample Date MTBE TBA DIPE EtBE TAME Methanol Ethanol Chloride TCE 1,2-DCA Acetone benzene benzene benzene benzene toluene toluene thalene benzene benzene benzene benzene VOCs'
<br /> ID Sampled (mg11) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mgll) (mg/1) (mgll) (mg/I) (mg/1) (mg/1) (mg11) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg1l) (mg/1)
<br /> Explanations(cont.):
<br /> 4=The method reporting limit for 1,2,3-Trichlorobenzene was raised,due to the presence of an interfering compound. t6=Chloroform detected at.022 ug/L, Bromodichloromethane detected at.0026 ug/L.
<br /> 5=The method reporting limit for 1,1,2-Trichloroethane was raised,due to the presence of an interfering compound. t6=Chloroform detected at 18 ug/L, Bromodichloromothane detected at 1.3 ug/L.
<br /> 6=The method reporting limit for 1,1,2,2-Tetrachloroethane was raised,due to the presence of an interfering compound. 1
<br /> 7=1,4-Dichlorobenzene was detected at 0.00059 ug/L.
<br /> 7=Samples were collected by Clayton Group Services for Unocal:LincolnlWeber. 18=Sample was re-analyzed to confirm the presence of compounds that were detected in the first analysis.
<br /> a=The method reporting limit for 1,2,4-Trichlorobenzene was raised, due to the presence of an interfering compound. 1
<br /> 9=Samples were collected by Wallace Kuhl for Unocal:Lincoln/Weber.
<br /> 9=The method reporting limit for 2,2-Dichloropropane was raised,due to the presence of an interfering compound. 20=The method reporting limit for Styrene was raised, due to the presence of an interfering compound.
<br /> 10=The Matrix Spike/Matrix Spike Duplicate Results were affected by the analyte concentration already present in the un-spiked sample. 21 =1,4-Dichlorobenzene detected at 1.2 ug/L.
<br /> 11 = Blank Analyzed 02119104. - 22=Styrene detected at 2.9 ug/L.
<br /> 23= 1,1,2-Trichloroethane detected at 2.7 ug/L_ 39=The method reporting limit for 2+4-Chlorotoluene was raised,due to the presence of an interfering compound.
<br /> 24=Chloroform detected at 1.8 ug/L. 4°=Chloroform detected at 0.0024 mgll
<br /> 25=Chloroform detected at 4.6 ugIL. 41 =The method reporting limit for Ethanol is increased due to the presence of an interfering compound.
<br /> 26=Chloroform detected at 4.8 ug/L. 42=Chloroform detected at 1.5 ug/L,Carbon Tetrachloride detected at 0.72 ug/L.
<br /> 27=Chloroform detected at 6.9 ug/L, Bromodichloromethane detected at 0.70 ug/L. 43=Chloroform detected at 4.3 ug/L,Carbon Tetrachloride detected at 1.5 ug/L.
<br /> 28=Chloroform detected at 8.6 ug/L, Bromodichloromethane detected at 7.0 ug/L 44=The method reporting limit for 1,2-Dichloroethane has been increased due to the presence of an interfering compound.
<br /> 29=Chloroform detected at 0.0086 mg/l 45=The method reporting limit for methanol has been increased due to the presence of an interfering compound.
<br /> l =Bromodichloromethane detected at 0.00097 mg/I 46=Chloromethane detected at 0.76 ug/L.
<br /> =The method reporting limit for TCE was raised,due to the presence of an interfering compound. 47=Bromoform detected at 0.51 ug/L.
<br /> 32=The method reporting limit for DIPE was raised,due to the presence of an interfering compound. 48=Vinyl Chloride detected at 0.60 ug/L.
<br /> =The method reporting limit for 1,3,5-Trimethylbenzene was raised,due to the presence of an interfering compound "y=Chloromethane detected at 0.95 ug/L.
<br /> 34=Matrix Spike/Matrix Spike Duplicate Results associated with sample MW-46 for the analyte Methyl-t-butyl ether " =Chloromethane detected at 0.87 ug/L.
<br /> were outside of control limits possibly indicating a bias for the sample that was spiked.Since the LCS recoveries were 51 =Chloromethane detected at 0.85 ug/L.
<br /> within control limits, no data are flagged. 52=The MRL for 1,2-Dibromo-3-chloropropane has benn increased due to the presence of an interfering compound.
<br /> 35=The MRL for 1,2-Dichloropropane has been increased due to the presence of an interfering compound. 53=Repeat analysis by Modified Method EPA 8015 yielded inconsistent results. The concentrations appear to vary
<br /> 36=The method reporting limit for diisopropylether was raised due to the presence of an interfering compound.
<br /> 37=Ethanol detected at 11 ug/L.
<br /> 38=The method reporting limit for Naphthalene was raised,due to the presence of an interfering compound.
<br /> lffidewaterlTW Stockton(Parcel 2A-0415)1TableslQMR Tables1200811 QUSIParcel2A(Tables 2,4,5,6,7)Historical GW Tables 100BAS Page 31 of 31
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