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TABLE 3 Grab Groundwater Chemical Analytical Resultst US Can-Welty Road Vernalis,California Concentrations reported in micrograms per liter(µg/L)unless noted Date Sample ID (Note#) Collected TPHg TPHd TPHdsg Benzene Toluene Ethylbenzene Total Xylenes MTBE S13-13-W-35""' 3:15/2005 50 450 500 '0.5 0.5 0.5 ,"1.5 -'2.5 SB-14-W-35�''5 6) 3 15/2005 50 200 460 0.5 0.5 •0.5 1.5 2.5 SB-17-35-W lx'al 3/14/2005 480 150,000 390,000 0.6 0.5 0.5 1.5 2.5 Abbreviations: pg/L=micrograms per liter TPHg=Total petroleum hydrocarbons as gasoline TPHd=Total petroleum hydrocarbons as diesel TPHdsg=Total petroleum hydrocarbons as diesel with a silica gel preparation MTBE=Methyl Tert-Butyl Ether <=Analyte not detected at or above the laboratory reporting limit shown Notes: I. Samples were analyzed by Lancaster Laboratories.Inc for TPHd using method CALLJFT-DRO/8015B Modified and TPHg using method N CA LUFT Gasoline TPHd analysis was performed both with(TPHdsg)and without a silica gel preparation procedure. Benzene.toluene,ethylbenzene, total xylenes and MTBE were analyzed using EPA Method 8260 2. The reported concentration of TPHg does not include MTBE or other gasoline constituents eluting prior to the q(n-hexane)TPHg range start time 3 Accurate surrogate recoveries could not be determined due to the dilution required for analysis of the sample 4. The observed sample pattern is not typical of diesel#2 fuel oil. 5. The vial submitted for volatile analysis did not have a pH 2 at the time of analysis. Due to volatile nature of the analytes, it is not appropriate for the laboratory to adjust the pH at the time of sample receipt.The pH of this sample was pH - 5 6. Sample quantitation was performed using the total sample area tom Ci;,through Cu as requested by the client Page 1 of 1