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Table 1 <br /> Groundwater Monitoring Data and Analytical Results <br /> Chevron Service Station#9-203.3 <br /> 508 West Charter Way <br /> Stockton,California <br /> EXPLANATIONS <br /> (irotind«ate: monitoring data and labomton dnal}tiLal results prior to May 31 2000 %vere compiled tram reports prepared by Blaine Lech 5cn ices,Inc <br /> TO(. =I op of(acrtig rill I-G=Total Petroleum tlydrocarbons as(,asolinc --=Not Measured/Not Anal},ed <br /> (ft)-I est Il=Renzuie TBA=q ettiat) but}I alcohol <br /> OWE=Groundwater Elevation T= Foluene DIPf =Di-isopmpyl ether <br /> (msl) -Mean sea level F=Ethylbenzem, rAMI;=1 erttan am}I methyl Lther <br /> D 1 W=Depth to Water X=Xylenes CTBF=I thyl tertiary hutyl ether <br /> fPFI-f)= I otdl PLtrolLltm Flydrocarhons ds DiLsel M flll =Methyl tertiary butyl ether QA=Quality Assuran(,O rip Blank <br /> TP11-M0-1 otal Petroleum I P drocarhons ac Motoi Oil (ppb)=Parts per bill son <br /> i OC tltvation alh rtd due to skellhead maintenarice on May 21 1998 <br /> 1 C hiomatogram pattLrn mdicau s an unidennriLd hydrocarbon <br /> 2 M 1131,b} CPA Method 8260 <br /> i Duc to laboratory error [PII D titins not analyzed <br /> 4 Odor <br /> s I abora(ory report indicatLs unidentified hydrocarblm,,>C 16 <br /> I ahormor) sgort indicates gasoline CO-( 12 <br /> ' Laboratory report indicates gasoline C6-( 12 t unidentified hydrocarbons<C6 <br /> s All sample containers s+ere broken on this date <br /> 1 aboratoD report indicates h%drocarbon pattern is present in the iequestcd fuel quantitation range but does not resemble the pattern of the,requested <br /> fuel The pattern more clo,,&,resembles that of a heavier hvdmcarbon min <br /> n BTEX and MTBE'bN CPA Method 8260 <br /> I ah()taturZ report indiLdtes UIL observed sample pattern is not NPILal of#2 fuelldiesel It elutes In thi.DRO range lati,r than#2 fuel <br /> i'- 1 ahoraton report indicates the ob,,erved sample pattern mi lodes 42 fueUdiesel and an additional pattern y&hich ehites later in the DRO range <br /> I I aboi atop teport indtL-Ites the observed sample pattern Include,,92 fuel/diesel and an additional pattern whiLh elutes earlier and later to the DRO iange <br /> 14 Analv,,is with silica gel clean-up <br /> is Laboratory confirmed anahlrLal result <br /> It, <br /> I aborator% report indicates the obseived sample pattern includes 42 tuel/diesel an additional pattern which elutes later in the DRO range and tnditi idual peaks eluting in the DRO range i <br /> 17 [ahoiatory iepoil indicates the observed sample pattern includes f!2 tuel/dtcsel an additional pattern which elutes earlier in the DRO range and contams individual peaks eluting in the DRO range <br /> A Laboratory report indicates the observed sample pattern is not typttal of 02 fuellchcsLl It c€uses In the DRQ range later than 42 fuel and contains individual peaks elirting in the DRO range <br /> 1,aboratory rLporl Indicates the observed sample pattern is not typroal of motor oil The,reported result rs duL to an individual peak(s)eluting in the motor ail range <br /> `U i iboratory report mdicatec the observed sample,pattern includes 42 f ielldiewl,an additional pattern:whi(,h elutes earlier in the DRO range and individual peaks eluting in the DRO range <br /> N 1 dhor itor report indicates the ohsLrved sample pattern is not typical of#2 fuel/diesel The reported result is due to an individual Ye <br /> } p p p }'p po pea].(5}eluting to the DRO ring <br /> 1 ahoratory report indicate,,the ob5cnul sample pattern i,,not tvpical of 42 tuel/diesel It elutes in the DRO range earlier than 42 fuel and contains mdse idual pLak,elututg in the DRO range <br /> I <br /> \lq,4396947 • As of&6 <br />