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LEE bSHIlLNeRRF.NHOn F,INC, <br /> 3a]sLmoa arx,r.au0.die xenM1 <br /> '� i usnu99eaee.e ore„n:nor <br /> 1 January 13, 1990 <br /> NagmA 80ard <br /> ki P.C.Cler r 2eardslee <br /> Stockton, <br /> ton,CA 95281.7020 <br /> E+e - Re: 102 South Wilson Way,Stockton <br /> Bear Hs. 2olezzl* <br /> }E Enclosed are copies of Leecish 111-Herkenhaffrs{LH)Prel Tot nary Invest{gasAon at <br /> 102 south Wilson Way, Stockton, CA. Thi, inrestigat than was performetl per the <br /> workplan dated Septemher l2, 1909, as approved by the Regional Water quaiicy <br /> 5 Control Board and Public Health Services, San JaaQNIn County. <br /> Irl Fire sail haring.and two monitoring wells were installed on the property to ' <br /> determine possible areas of petroleum hydracarban contaminat ion In sa it.and - <br /> iE sail ad eeples and to indicated armIn,that only none eso gra boring, TBS�rlecatedanalysis thor <br /> e <br /> r northwas!corner of the property, In <br /> lgnificant concentrations not BTydE - <br /> (tenzene, to <br /> xylene, nd ethylherizeneJ and TPH (total petroleum <br /> t� hydrocarbons] as gaapllne. RII.other sail sampples showed nandetectable'o ” <br /> Ls -extremely low residual levels e,BT77E and TPH, levels which would oat pose a <br /> threat to the ezfs dog groundwater resources of the area,acccrding to the TUFT <br /> C1 manual evaluatfan process. Groundwater sampl tog indicated high concentrations <br /> 4� of hydrocarbons 1n the groundwater near HW2 and HWS, end flow in a generally- <br /> e sterly direction. Therafore, there is o c cern regarding the passible <br /> off3lte migration of petroleum hydrocarbons 1n the groundwater. <br /> A L'- .LH recommends that Phase 11 ass ssment b performed to better define the <br /> 'lateral stent of the existing oil contaminat l on found in the northwestern ! <br /> corner of the property and to Further address the groundwater problem. <br /> It has been a pleasure working with you on this project. If,you re ul re r' <br /> addltlanal information please do not hesitate to contact Nike Tif Yon <br /> nr <br /> Verytruly yours. - <br /> .,�. � Q(tpFFS310yq <br /> Gerry S.Nakano, P.E. ek4��V S44 <br /> Vice President - <br /> S832-12.1tr/dkj/397(.) <br /> cc: ..Dan Roek * J1�N, Jl i{J ,47 'ki+f; �'xi- <br /> V „ sjfit`F EFi14oti JAR 3 0 MCI <br /> fNV4Et(lM13'%dTAI-HEALTH h <br /> 3' <br /> ;.` - SAH FRANCI6C0 . SAN pIE¢a • p ER AL9eONERO RE • —rA FE •'PHOENIX <br />