Laserfiche WebLink
Table 1 <br /> C-Sparge System Pilot Test <br /> Groundwater Chemical Analytical Results <br /> Former Unocal Station No 2859 <br /> 1665 Pacific Avenue <br /> Stockton,California <br /> WELL SAMPLE <br /> ID DATE TPHg B T E X MtBE <br /> (ppb) b b 6 b b <br /> Explanations <br /> BTEX=Benzene,toluene,ethylbenzene,xylenes Analytical Laboratory <br /> MtBE=Methyl tert-butyl ether Sequoia Analytical(ELAP#1624) <br /> Explanations Cant <br /> ppb=parts per billion <br /> C-Sparge system operational on August 14,2002 <br /> Notes <br /> Wells purged prior to sampling <br /> 2 Baseline concentrations <br /> 3 Laboratory report indicates gasoline C6-C10 <br /> 4 MtBE confirmation by EPA Method 8260B <br /> 5 The opening calibration verification standard was outside acceptance limits by 1% <br /> Although the Laboratory Control Sample venfied the accurary of the batch,this should be considered when <br /> evaluating the data <br /> 6 Current laboratory analytical results do not coincide with histoncal data,and although the laboratory <br /> results were confirmed,it appears that the samples were switched <br /> Hydrocarbon pattem is present in the requested fuel quantitation range but does not resemble the requested fuel <br /> 06940-357 5 of 5 ENSR Corporation <br />