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09 hay 2005: <br /> A'51�-NC Proje d'N.6 VT-03110 <br /> page 2 oft <br /> 46' there have beense era gc of id.water monitor;ng-events}performeO,at the site; ground water <br /> hmiWnix weltsl MW-1*61.0 MW-3 were reported-as`dry-:on two occasions.During the first two <br /> ltd water rnor}toring event,total petroleum hydroearborrsuarttified as dieser('1 'I 1-c�was detected <br /> ftp well <br /> :Mw-tat.1,w,concentrat}ans,offig migogran per liter-(µg/1) $rid 59 g/l, respectively; <br /> howe*er,the labw#e*' irther tt id ated that the sample ehjromatograms had no recognizable pattern <br /> and were not typical of dresel Nk. yl tertiary butyl ether (MTBE) was also detected on separate <br /> oecaswns From webs MVk� 1 andmw at coric ritrations as high as 2µg 1,which is below the:California" <br /> primary and secoudary;maximilmr tontemiriia t levels•(MCLS) pf 13 :}ig/l..and 5`µg/l, respectively: <br /> Herefore it,would-: 'car the groundwater monitoring data'collectectto date is marginally adequate <br /> for assessment of the ground`water-impact. <br /> I3dvi+ever,due to the defection of'i'P1 i-d;`TPbi-rnq,Tyi"I13E and•12-DCA from a-grab water"sample <br /> collected from boding pig�fiS-6g few nsg�additional groi and water:ass€sstneut is orranited to further <br /> assess the areanear P-9°afnci to,confirms that petroleum-impacted ground water has not mig rated towards <br /> X,m1q.1w pal water well {Station III,.located 300,feet towards the south Soil boring P4 rs situated <br /> between the former E1 area ,arid. dtwvagradient moni`toriug welt <br />