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TABLE 2 <br /> SUMMARY OF SOIL ANALYTICAL RESULTS(PAHs) 1'2'3 <br /> US CAN-WELTY ROAD <br /> Vernalis,San Joaquin County,California <br /> Concentrations in mg/kg <br /> a v <br /> aA; <br /> Sample <br /> Depth Date N N N N N z I i ° ° 'q <br /> BoringID (feet b s) Sampled Q 4 A 1 a a <br /> u u v a6 a, -� -c <br /> SCREENING RSL 27 4 --- 450 4 0.014 4 0.0046 4 0.047 4 --- 0.46 4 1.4 4 0.015 4 210 4 33 4 0.16 4 0.015 4 0.9 4 0.00055 4 --- 150 <br /> LEVELS ESL 16 5 13 5 28 5 0.38 6 0.038 6 0.38 6 27 5 0.38 6 23 5 0.062 6 60 5 8.9 5 0.62 6 --- 0.25 6 1.3 6 11 5 85 5 <br /> SB-44 5 7/20/2010 <0.00067 <0.00033 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <br /> SB-44 36 7/20/2010 <0.00067 <0.00033 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <br /> SB-45 5 7/20/2010 <0.00067 <0.00033 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <br /> SB-45 38 7/22/2010 <0.00067 <0.00033 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <br /> SB-46 5 7/21/2010 <0.00067 <0.00033 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 0.00074 J <0.00067 <br /> SB-46 38 7/21/2010 <0.00067 <0.00033 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 0.00073 J 0.0014 J <0.00067 <br /> SB-46 44.5 7/21/2010 <0.00067 <0.00033 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <br /> SB-47 5 7/21/2010 <0.00067 <0.00033 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <br /> SB-47 34.5 7/21/2010 <0.00067 <0.00033 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00033 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 <0.00067 0.00084 J <0.00067 <0.00067 <br /> Abbreviations: Notes: <br /> bgs=Below ground surface 1. Samples were collected by SAIC-Benhamand analyzed by Lancaster Laboratories,Inc.for PAHs using EPA Method 8270C with SIM. <br /> EPA=United States Environmental Protection Agency 2. See Appendix F for data usability summary. <br /> ESL=Environmental Screening Level 3. Results in bold exceed RSLs and/or ESLs. <br /> ID=Identification 4. RSL risk-based screening level for protection of groundwater. <br /> J=Estimated concentration detected between MDL and LOQ 5. ESL Groundwater Protection(Soil Leaching). <br /> LOQ=Limit of Quantitation 6. ESL Direct Exposure(Human Health)Residential Land Use. <br /> MCL=Maximum Contaminant Level <br /> MDL=Method Detection Limit Sources: <br /> mg/kg=Milligrams per kilogram RSLs from EPA Regional Screening Levels(RSL)for Chemical Contaminants at Superfund Sites,September 2008. <br /> PAHs=Polynuclear aromatic hydrocarbons ESLs from the San Francisco Bay RWQCB Screening for Environmental Concerns at Sites with Contaminated Soil and Groundwater(Interim Final May 2008). <br /> RSL=Regional Screening Level <br /> RWQCB=Regional Water Quality Control Board <br /> SAIC-Benham=The Benham Companies,LLC,an SAIC Company <br /> SIM=Selective ion monitoring <br /> <=Denotes analyte not detected at or above the laboratory reporting limit <br /> --=Not available <br /> Arm 22 The Benham Companies,LEC <br /> __FjWSjl6_. A Wholly Owned Subsidiary <br /> Page 1 of 1 F+om science 10 sWffria+ <br />