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<br /> - E{ GE- 1386 E.130tJTE 2 STT 177
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<br /> WESTERN GEO-ENGINEERS WCODLAND,CA 95695.9603
<br /> CALIF.CONTRACTOR#513957 A CORPORATION FAX(916)6E2.0273
<br /> REGISTERED GEOLOGISTS (916) 662-4541
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<br /> I'._. R1 : 1Jr,Yi f'l.,rri to rIc 1�riMtit.r rra�3ulint3-range hydrocarbc,n aril
<br /> i c0rit.i7+i0Jt1,_,n di�icovr;rtd poring the excavat-ion of underrlrciind
<br /> stor lge tztni,:�, at the-_, furfriur Regal Service station o3, E-125
<br /> Pacific Averua and pcf.tg1arG Avenue, Stockton, California_
<br /> Dear Mrw.. Iisnfrrn:
<br /> John III eg.awa}.;i, of kecaal--A Wickland Oil Company, hL+w ct;ntracted
<br /> Western Gear-Engineor=s to proceed with the necessary work, plan for
<br /> assessmeriL, :ri trrrw :,drive?-'mentioned site (See figurfas 1, 2 and 3).
<br /> - Hydrocarbr:•n c,_-rntaminatiun was discovered durf_g the excavation and i
<br /> removal t,f tan}:, P p-
<br /> at the ai1.c:. We rc� use to delineate the
<br /> vertir..il avid l;wt�-ral extent of l-he cr;.ntaminatiun wittl exploratory
<br /> nQ : d 1.lta.t ted I1r,Y t h, N i$t anU 5r_rra tt U IC }fYt:�.cilent excavacion.
<br /> EXXON, INC. h-, purchast_d the cite. Rigal was in the process .:if
<br /> upgYadiny tht~ site with new dot.tGle-crntained tani:_s and piping.
<br /> Town 0 t1 C.,.rintry C:.Irr LQd rout 'the tank removal and excavation and
<br /> Applied GeOSVIzitems perfrormud thu required soil sampling on October
<br /> 1901`3 (Svc FiQ+1rw• 3) . CCrn_;t�-action was halted upon discr_.Very
<br /> =it
<br /> 9t.sO1 erlt:-typE so.z] corttatniri.,,tiun in ttiu baci:ti.11 material and
<br /> 3n the '.a-:,.il iI t;h,,: toi,k :irL-a (:Zee Table 1,I Immediate
<br /> `;1 GE? '+l t ein(l ctrL. 't:,udPd to cxE edi UiE trr L' re?Irl dia(tion ! .
<br /> and upgr,:i r3 et :.f the 51 t0.
<br /> EXPLORATORY }ORIN6 AND SAMPLING HROCEDURES
<br /> Western Ge.-Engineers conducted rite vit;it ort IVe-vofrU+ r 1;5,
<br /> Wo Have dettrminr:d that tht Opti+n.il means of ; ite �i�G.�rr��fftent +alll
<br /> i:-• _to por f,:rrm exploratory borings along the p,�ritneter of the
<br /> t::LaYeition- The borings Will be: perfor.1j d to the ncYtrr, eatit and
<br /> so+,th _,r thc• oa>-cav:t1on, appr,z,,. imately 1G feel. rr,..rn tho e,.i,.�iting
<br /> . tndY)].115 (Soo VLnVria ::A) . Cor ti 11t_id laboratory anal y-iiti ron soil
<br /> Lample:: talon .-c' l thu wr=Lterrt p,:,rtian Of ti-ow L:xe,:,vrt ic•n indicate
<br /> that this. arta. ay cyan of Iine-typet.int.inati n.
<br /> J. Thr:re'Firr.�, nu b=:rin+-as arta unticip;tted west ref ths.: a-•.,: ,v:ti_,r,
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