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Page 1 of 1 <br /> TABLE 4 <br /> QUALIFIED SAMPLE DATA DUE TO OUTLYING OF SURROGATE RECOVERIES <br /> LIMITED PHASE II SUBSURFACE INVESTIGATION <br /> UPRR-PORT OF STOCKTON PROPERTY LEASE <br /> STOCKTON,CALIFORNIA <br /> APRIL 2014 <br /> Surrogate Control Limits Qualified <br /> Parameter Sample ID Surrogate %Recovery %Recovery Analyte Result Units <br /> SW8260B SO-2432-B-6D5.5-041514 1,2-Dichloroethane-d4 167 60-140 Acetone 0.101 mg/kg <br /> Methylene chloride 0.20 1 mg/kg <br /> SO-2432-B-9D5.5-041614 1,2-Dichloroethane-d4 156 60-140 Acetone 0.046 1 mg/kg <br /> Methylene chloride 0.051 1 mg/kg <br /> SW8082 SO-2432-13-2D5.5-041514 Tetrachloro-m-xylene 27 45-132 Aroclor-1260(PCB-1260) 0.050 U1 mg/kg <br /> Aroclor-1254(PCB-1254) 0.050 U1 mg/kg <br /> Aroclor-1221(PCB-1221) 0.050 U1 mg/kg <br /> Aroclor-1232(PCB-1232) 0.050 U1 mg/kg <br /> Aroclor-1248(PCB-1248) 0.050 U1 mg/kg <br /> Aroclor-1016(PCB-1016) 0.050 U1 mg/kg <br /> Aroclor-1242(PCB-1242) 0.050 U1 mg/kg <br /> SO-2432-B-3D5.5-041514 Tetrachloro-m-xylene 29 45-132 Aroclor-1260(PCB-1260) 0.049 U1 mg/kg <br /> DCB Decachlorobiphenyl 39 42-146 Aroclor-1254(PCB-1254) 0.049 U1 mg/kg <br /> Aroclor-1221(PCB-1221) 0.049 U1 mg/kg <br /> Aroclor-1232(PCB-1232) 0.049 U1 mg/kg <br /> Aroclor-1248(PCB-1248) 0.049 U1 mg/kg <br /> Aroclor-1016(PCB-1016) 0.049 U1 mg/kg <br /> Aroclor-1242(PCB-1242) 0.049 U1 mg/kg <br /> SO-2432-B-7D1.5-041514 Tetrachloro-m-xylene 43 45-132 Aroclor-1260(PCB-1260) 0.049 U1 mg/kg <br /> Aroclor-1254(PCB-1254) 0.049 U1 mg/kg <br /> Aroclor-1221(PCB-1221) 0.049 U1 mg/kg <br /> Aroclor-1232(PCB-1232) 0.049 U1 mg/kg <br /> Aroclor-1248(PCB-1248) 0.049 UJ mg/kg <br /> Aroclor-1016(PCB-1016) 0.049 UJ mg/kg <br /> Aroclor-1242(PCB-1242) 0.049 U1 mg/kg <br /> SO-2432.B-8D1.5-041514 Tetrachloro-m-xylene 32 45-132 Aroclor-1260(PCB-1260) 0.049 U1 mg/kg <br /> Aroclor-1254(PCB-1254) 0.049 U1 mg/kg <br /> Aroclor-1221(PCB-1221) 0.049 U1 mg/kg <br /> Aroclor-1232(PCB-1232) 0.049 U1 mg/kg <br /> Aroclor-1248(PCB-1248) 0.049 U1 mg/kg <br /> Aroclor-1016(PCB-1016) 0.049 U1 mg/kg <br /> Aroclor-1242(PCB-1242) 0.049 U1 mg/kg <br /> Notes: <br /> J-Estimated concentration <br /> UJ-Not detected;associated reporting limit is estimated <br /> CRA 058324Memo-510-Tbls <br />