Laserfiche WebLink
Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station No. 548 <br /> 1612 W. Hammer Lane, Stockton, CA <br /> Notes: <br /> --=not measured or analyzed <br /> <=below detection limits used by laboratory <br /> Fig/L=micrograms per liter <br /> bgs=below ground surface <br /> DO=dissolved oxygen <br /> mg/L=milligrams per liter <br /> MRL=method reporting limit <br /> msl=mean sea level <br /> MtBE=methyl tert-butyl ether <br /> MW=monitoring well <br /> NA=not analyzed <br /> P/NP=purged/not purged <br /> TOC=top of casing <br /> TPHd=total petroleum hydrocarbons as diesel(reported as diesel range organics(DRO)(C10-C36 as of 411/2004)in the analytical report) <br /> TPHg=total petroleum hydrocarbons as gasoline(reported as gasoline range organics(GRO)(C4-C12 as of 4/1/2004)in the analytical report) <br /> U.S.EPA=United States Environmental Protection Agency <br /> VW=vapor well <br /> Sample designations: <br /> (34)=discrete sample depth(feet). <br /> FP=free product. S= sheen. O=obvious product odor. <br /> =Raised MRL because of matrix interference. <br /> =The sample contains a lower boiling point hydrocarbon mixture quantified as gasoline;the chromatogram does not match the typical gasoline fingerprint. <br /> =Raised MRL because of high analyte concentration requiring sample dilution, <br /> (2]MtBE was analyzed using U.S.EPA Method 826013. <br /> [3]Hydrocarbon pattern is present in the requested fuel quantitation range but does not resemble the pattern of the requested fuel. <br /> [4]The sample was diluted because of the presence of high levels of target analytes resulting in elevated reporting limits. <br /> [5]The sample was diluted because of the presence of high levels of non-target analytes resulting in elevated reporting limits. <br /> 3/11/2004-VW-5S and VW-5D data rejected because of a discrepancy during sampling. <br /> Data Qualifier Definitions: <br /> i <br /> U=The analyte was analyzed for,but was not detected above the sample reporting limit. <br /> J=The analyte was positively identified;the associated numerical value is the approximate concentration of the analyte in the sample. <br /> N=The analysis indicates the presence of an analyte for which there is presumptive evidence to make a tentative identification. <br /> NJ=The analysis indicates the presence of an analyte that has been tentatively identified,and the associated numerical value represents its approximate concentration- <br /> UJ=The analyte was not detected above the reported sample reporting limit. However,the reported reporting limit is approximate and may or may not represent the actual limit of quantitation <br /> necessary to accurately and precisely measure the analyte in the sample. <br /> R=The sample results are rejected because of identification or other analytical issues. <br /> ND=Not detected above reported detection limit. <br /> Report Date.November 17,2005 Page 17 of 17 <br />