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Table 6 <br /> Groundwater Analytical Data-SVOCs <br /> South Shore Parcels-Parcel 2A and Adjacent Areas <br /> West Weber Avenue and North Lincoln Streen <br /> Stockton, California <br /> Analyzed by EPA Method 8270 <br /> Benzo- Benzo- Benzo- Benzo- Ideno- 1-methyl- 2-methyl- Bis(2-ethyl- 2,4-Di- 3/4- <br /> Anth- (a)anth- (b)fluor- (k)fluor- Benzo(a)- (g,h,i) Chry- Fluor- Fluor- (1,2,3-c,d)- naph- naph- Naph- Phen- hexyl)- 2-methyl- methyl- methyl- Diethyl Other <br /> Sample Date racene racene anthene anthene pyrene perylene sene anthene ene pyrene thalene thalene thalene anthrene Pyrene phthalate Phenol phenol phenol phthalate SVOCs <br /> ID (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) <br /> QA/QC Sampling(cont.) <br /> Method Blank 4/27/09 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ND <br /> Method Blank 4/27/09 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ND <br /> Method Blank 4/28/09 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ND <br /> Method Blank 4/28/09 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ND <br /> Method Blank 7/28/09 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ND <br /> Method Blank 7/29/09 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ND <br /> Method Blank 7/30/09 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ND <br /> Method Blank 10/20/09 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ND <br /> Method Blank 10/20/09 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ND <br /> Method Blank 10/21/09 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ND <br /> Method Blank 10/22/09 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ND <br /> Method Blank 1/20/10 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ND <br /> Method Blank 1/21/10 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ND <br /> Method Blank 1 1/22/10 1 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ND <br /> Explanation: <br /> SVOCs=Semivolatile Organic Compounds ND=Not detected; laboratory reporting limit(s)unspecified in historical tables. <br /> mg/I=milligrams per liter <=Below given laboratory detection limit <br /> ---=Not Analyzed FD=Field Duplicate <br /> SPH=Separate Phase Hydrocarbons <br /> =Other unspecified SVOCs were tabulated in Treadwell&Rollo's Volume ll, <br /> Site Characterization Report dated 12/13/99. 16=Date sample was prepared. <br /> 1 =Phenol detected at 0.063 mg/I. 17=The analyte concentration was reported from analysis of the diluted sample. <br /> 2=Collected by Clayton Group Associates. 18=Dilution factor of 10. <br /> 3=Phenol detected at 0.057 mg/I. 19=Phenol detected at 0.057 mg/I. <br /> 4=Phenol detected at 0.037 mg/l. 20=Phenol detected at 0.087 mg/I. <br /> 5=Phenol detected at 0.025 mg/I. 21 =Phenol detected at 0.024 mg/I. <br /> 6=Surrogate spike compound(p-Terphenyl-d14)was out of control due to matrix interference. The 22=The relative standard deviation of the callibration curve response factors exceeds the control <br /> associated method blank surrogate spike compound was in control and,therefore,the sample data limit for the analyte 2-Naphthylamine. <br /> was reported without further clarification. 23=The relative standard deviation of the callibration curve response factors exceeds the control <br /> =Surrogate spike compound(2-Fluorobiphenyl)was out of control due to matrix interference. The limit for the analyte N-Nitrosodimethylamine. <br /> associated method blank surrogate spike compound was in control and,therefore,the sample data 24=The Continuing Calibration Verification(CCV)recovery is not within established control limits for <br /> was reported without further clarification. the analyte 2-Naphthylamine. <br /> 8=Surrogate spike compound(Phenol-d6)was out of control due to matrix interference. The 25=The Continuing Calibration Verification(CCV)recovery is not within established control limits for <br /> associated method blank surrogate spike compound was in control and,therefore,the sample data the analyte N-Nitrosodimethylamine. <br /> was reported without further clarification. 26=Phenol detected at 0.018 mg/I. <br /> 9=Samples collected by Clayton Group Services. 27=Collected by Wallace Kuhl. <br /> 10=Phenol detected at 0.089 mg/l. 28=Phenol detected at 0.039 mg/I. <br /> 11 =Phenol detected at 0.014 mg/l. 29=Phenol detected at 0.034 mg/l. <br /> 12=Bis(2-Chloroethyl)Ether detected at 0.024 mg/I. 30=Phenol detected at 0.045 mg/I. <br /> 13=Phenol detected at 0.012 mg/l. <br /> 14=Phenol detected at 0.180 mg/I. <br /> 15=Phenol detected at 0.025 mg/l. <br /> Stantec <br /> I:\Tidewater\TW Stockton(Parcel 2A-0415)\Tables\QMR Tables\2010\4Q10\20101117-Parcel2A(Tables 4,5,6,7)Historical GW Tables 4Q10.xls Page 51 of 52 <br />