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TABLE 4 <br /> GROUNDWATER ANALYTICAL RESULTS ^Hs)""' <br /> TRACY BYRON ROAD <br /> Tracy, California <br /> Concentrations reported in Rg/L <br /> os a m <br /> ami ar "S <br /> w a7 <br /> +' , <br /> Date ' ' 00oil <br /> Boring ID Collected >� WU A� 4 w S Z 4, 4' <br /> SB-37 3/13/2007 <0.010 <0.010 <0.010 <0.01 <0.0050 <0.010 <0.010 <0.010 <0.010 <0.0050 <0.010 <0.010 <0.010 0.042 0.011 <0.010 <br /> SB-38 3/13/2007 <0.010 <0.010 <0.010 <0.010 <0.0050 <0.010 <0.010 <0.010 <0.010 <0.0050 <0.01 _ 0.011 J <0.010 0.073 0.018 J <0.010 <br /> SB-39 3/12/2007 <0.15 <0.10 <0.10 <0.15 <0.15 <0.15 0.40 <0.15 <0.10 <0.15 <0.10 0.15 J <0.20 1.4 0.21 J <0.15 <br /> SB-40 3/12/2007 <0.010 <0.010 0.011 <0.010� <0.0050 <0.010 <0.010 <0.010 <0.010 <0.0050 _<0.010 0.015 <0.010 0.36 0.024 <0.010 <br /> SB-41 3/12/2007 <0.010 I <0.010 <0.010 <0.010 1 0.0050 <0.010 <0.010 <0.010 <0.010 <0.0050 <0.010 <0.010 <0.010 0.033 0.019 <0.010 <br /> Abbreviations: Notes: <br /> J Estimated concentration detected between Method Detection Limit and Limit Of Quantitation 1. PAHs were analyzed by Lancaster Laboratories,Inc., using EPA Method 82700 SIM or LVI. The QC limits for PAHs and surrogate <br /> <=Denotes analyte not detected at or above the laboratory reporting limit standard recoveries by LVI GC/MS are advisory only until sufficient data points can be obtained to calculate statistical limits. <br /> EPA=U.S.Environmental Protection Agency 2. Results presented in bold exceed WQOs and/or ESLs. <br /> ESL=Environmental Screening Level 3. See Appendix D.1 for data usability summary. <br /> GC/MS =Gas chromatography/mass spectrometry 4. WQO (Tastes and Odors)that prohibits adverse tastes and odors or nuisance conditions. <br /> ID=Identification 5. WQO(Toxicity) that prohibits toxic chemicals in toxic amounts. <br /> J=Estimated concentration detected between Method Detection Limit and Limit Of Quantitation 6. ESL(for protection or current or potential drinking water resource)based on Ceiling Value. <br /> LVI=Large-volume injection 7. ESL(for protection or current or potential drinking water resource)based on Drinking Water Toxicity. <br /> MCL=Maximum Contaminant Level 8. ESL(for protection or current or potential drinking water resource)based on Bioaccumulation and Human Consumption. <br /> PAHs=Polynuclear aromatic hydrocarbons <br /> QC=Quality control Sources: <br /> RWQCB =Regional Water Quality Control Board ESLs from the San Francisco Bay RWQCB Screening for Environmental Concerns at Sites with Contaminated Soil and Groundwater <br /> SIM=Selective ion monitoring (Interim Final February 2005). <br /> W=Grab groundwater sample collected at wellhead tap WQOs from the Central Valley RWQCB Water Quality Control Plan(Basin Plan.)far the Sacramento Diver Basin and the San Joaquin. <br /> pglL=Micrograms per liter River Basin.,4th ed. (Revised August 2006). <br /> WQO=Water Quality Objective <br /> : <br /> 3 <br /> : <br /> 1 <br /> f <br /> From Science to Solutions <br /> Page 1 of 1 <br />