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/f Environmental <br /> /® consultantu, Inc. <br /> 3330 Data prlve,Su'ta 100 <br /> CA 95670 <br /> i7ancho Cordova, <br /> 9161636-2085 <br /> FAX:316163t3.8385 <br /> �7 <br /> } f' Will <br /> June lo, 1991 Ef IUlf�iiiiP.l;l:i�1iL Hi 1s1_lli <br /> Mr.Glenn R.Dcmbroff <br /> Ultramar Inc. <br /> 525 West Third <br /> fonia`93230 <br /> Hanford, <br /> Subject; <br /> Quarterly nlonirot lrg Letter Repan, """"t Qrrarrer 199 <br /> 1 <br /> Beacon Staunn No.696di,California <br /> Dc'2441 as est ct t � <br /> No.40 clo-939 <br /> Dear Mr.Dcmbroff: <br /> contains the latest quarterly ground water analYtiaC3 forma(San <br /> S n-loiquin}County). <br /> This letter <br /> report Thi g and water <br /> Beacon Station No.696 located at-: West KettletThe g Lane, <br /> in Fig 1991.1. round water levels were meitst►red, <br /> The location of the <br /> site is shown til l 1, 1991• All work conducted at the siie'nas performed in <br /> samples were collected for annlysis on AP <br /> accordance with the field methods and Procedures described to Enclosure A. <br /> SUh1� h� tr <br /> W-35, hiW-36, during this <br /> monitoring <br /> Ground water is present at the site <br /> resented inTable 1 with prev <br /> or <br /> leve!data. <br /> The remaining 28 water flow <br /> Tice water level data <br /> collected from monitoring wells MW-20 MW-31, <br /> monitoringperiod are p or are currently drY direction of group <br /> rima <br /> wells at the site have either been abandoned and the average hydraulic gradient across the site is <br /> helween approximately 49 and 50 feet below the surface. Thep ry <br /> the $1ns illustrated in <br /> to T igurc 3, <br /> is toward . <br /> a Pproximatel 0.002-Coater <br /> ntration <br /> �! benzene, toluene, ethylbenzene, and <br /> les were submitted to a slate-ce�soline`anratary to determine the from epreviaus <br /> Ground water camp TpH) as S <br /> levels of total petroleum hydrocarbons <br /> A summary its aC the Geld sampling information work sheets a:e <br /> Of tlleSL' analytical results, and the analytical results resented in <br /> xyietres (IITf <br /> W. reports <br /> arc p <br /> monitoring events,is presented in Table Cop ' <br /> presented a Enclosure B. Copies of the ground water s,,,mpie laboratory P <br /> Enclosure C. wells have been submitted tot e <br /> Aworl;plan and permits for the al,andonment of off site snuntloring owners or their <br /> cccil"d from the ofC site property Ind the well <br /> County 1-Ictdth Depatunent for ilPprtiYill. Permission to enter the adjat:ent property � <br /> San Joaquin y , wells has not been r <br /> abandon these monitoring <br /> re resentatives. This work will be cotcducled as soon as the off-site fight-Of-entry <br /> — P... _.__.... �rmiIshave been ohtaiped. <br /> abandonment p' <br /> Praclic`'Solutions to Environmental concerns <br />