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i <br /> TABLE 1 GROUNDWATER MONITORING DATA, FORMFR EXXON RS 7-3708, 2705 COUNTRY CLUB BOULEVARD, STOCK TON, CA <br /> Reference Depth to Groundw ater Fthyl- Total TPH as Oxygenate <br /> Monitoring Elevation Groundwater Elevation Benzene Toluene benzene Xylenes gasoline MTBE Compounds <br /> Well Date (feet) (feet) (feel) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pgll) (pg/1 ) <br /> tollowing Lhlnrmaled hydrocarboiis tmylchlortde cis-1 2-dichloreethem trlel]IUIUethan4,alld tc n3LNOF OLllrane l hese peaks tesultLd in a posttnL <br /> luel h}dtocaibon rLsult <br /> L= A typical chromatogram Fuur unknown parks vete ohseived causing a positiNt fuel h)dloLaibon iLsult C hlonnated hydroLatbous are suspected <br /> t =A typtLal Lhr0m310gia111 An unknown peak was observed bctwLLn M`FBF and benLUle ( hlonnated hyd]OLaibons aic suspLULd <br /> g -A typtLal Lhtomatogram Analysis of this sample by 1-PA Method 624 on spill 17 1992(past FP\ IecommLndLd holding time) was positive for thL <br /> toflowrngLhloiinaledh)droLaihons chlorobenaneand 12-d1LhlorobenLCnL <br /> h-N1 FBL LonWllrattons by I PA Method 8260 <br /> i=iUmdentitied hydioLaibon in the C,6( 12 range <br /> f= 1 2 DILhloroethanL <br /> k-1 PI l as diesel <br /> Refetenee elvNatino -Elevation lddl]vL to mean sea level <br /> Ihpth to groundwater -Measured from notchlmaik on north edge of well Lasing <br /> FPl l=Total petroleum hydiocarbuns by EPA Method 8015 ModlfiLd <br /> MT BL=MLthyl tLrtiaiy butyl ether by EPA Method 8020 Modified,except as notLd <br /> ChygLnate Lompuund.�=sample analyzed for ethanol,t-butanol M l BL di uopiopvl ether ethyl kttiaiy butyl Lthel and t amyl methyl ether by <br /> FPA Method 8260 All anal}tes wLte reported bt low the Iabolatoty detection lunit LxLLpt as noted <br /> NA=Nut analycLd <br /> N( -Not Lakulakd <br /> NM=MeasurLmLnt not takLn <br /> NJ=Not samplLd <br /> It bgs=Feet below ground surlaLL <br /> µ1.1=Miciograms pL: I]tLt <br /> I � <br /> f projects 71708 maskr 4201 3708L%a N1 P i_L '2 of I <br />