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�(7,C7/iet� rE'�`�,ca1/�1�PJ'dar d 3 9 F V0YWer Intl f4tatl,'-jcr,ir,rc nh)!,CA 9582$ 0161 452.2901 <br /> w �Rt'•t[)ti1 a-()';IA MESA �ACRAMF NYO 0 tiousi()h4 <br /> August :3., 7.080 <br /> AGS Job lqu. 180121 r <br /> ,^r. David caarls . <br /> '.,an Joaquin Local health District <br /> Environmental health Division <br /> P.D. Box 2009 <br /> ;:,tockton California 95201 � <br /> -OAK- .-•a,ia„r a •r•:. ,� .7`` <br /> Subject: Letter report rogardinq 0ai0,q�of VpOil s�.6Q�!'�I e at A <br /> U0;1 <br /> North Cal Construction, 221 North CArdil-MI StrtiaG, <br /> Stockton, California. <br /> m,: Carls: ` <br /> At the raquest iof Mr. Joe CC31.t%tOOk Of COr', Orht,-Wn, We &."ak <br /> sul'mitting directly to you tbiz l:tatt.er a:vnrrt that describes. sim-Mi ling � <br /> locations, procedures, and anal.ya4s perf�X".t to charattarize levels � <br /> of hydrocarbon ,contamination in: doi;i excavated from former,VNOCAL <br /> Service Statioai No. 2859, . Stockton, California. <br /> ,oil zamploo, taken at the sit€t &Iri q ril=Val of undert7rciand to kz <br /> contained levels of hydrocarbon that ex ec. action , <br /> levels _%pocifi l d by the San a0tiq LA LOCt&IAW41'th Di,sstrict. . Sail. <br /> containing such elevated lova is h-.5 noir VP'm largely .ranoved frain the <br /> { area of the tanks by excavatzork. .. With the approvaj of the California <br /> I Pegional Fater Quality Control 06ard and tho Sara J"quin Local flea .th <br /> District, excavated hydroca bon--d sntatmi: t d soil was ru=cved to ' <br /> North cal Conatruction at 221. No h. Cardintyl Streot iii Stockton, i <br /> . California, during the week of April 4: 1988, for ar t atticrtc <br /> Before moving the soil from the former UNOCAL station to the above- <br /> referenced site, composiBaa l do of this soil were analyzed for <br /> total petroleum hydrocarbons &M the volatile organic aonstituentZ <br /> benzene, sthyibonzone, toluene, raod total."xyl:e fte is'0MOrS. 'ihe <br /> E results of thebe ana:lys-es are prtoventodi ih Table 1: <br /> ApproxiMaately 35.E cubic yards of serail were placid on plastic ghee*i ng � I <br /> at t,',ort:h Cal. C..nstraacr. on's yard and spread i.n, an 8- to 3.0-1iic.1-thi.ck <br /> k;_iyer. The coifiguzation of this spoil stockpile is thown ora platah i <br /> On June 13 , 1988, Appl.ird GgoSystcrus ammplcad the spoi,l nt.ockpile at <br /> f the locations indicated on Plate P-1. Sri-aples we:e collet Wed by <br /> sce,_)ing off the toga 3 tc a inches of moil and then driving a hand- <br /> i <br /> i <br /> i <br /> I <br /> i <br />