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gra <br /> 4...0 X. d i z �... ..:J9• �: ;C r 4 t '.- - <br /> p7' ,re <br /> 6 <br /> Ptl <br /> Phase-Illydr-moloele A.-mmraent <br /> •-� Moreland Court Sbell <br /> 7700 Moreland Court,Stockton,Calltorals <br /> Delta Project No.40-U-1" <br /> PrV 2 <br /> 1.2 $rage aP tR+arit <br /> To accomplish these objectives, the following activities have been performed. <br /> • Review of available geologic and hydrogeologic data pertinent to the site. <br /> F Drilling of five exploratory soil borings. r <br /> • Collection of soil samples at 5-foot intervals with a modified California:,ampler and soil <br /> classification according to the UaiFed Soil ClassiBCatian System (USCS). <br /> t — Screening of the recovered soil samples with a portable photoionization detector (PID) <br /> a <br /> for total orgimic vapors. 1 <br /> i <br /> _ F <br /> Selection 41'soil samples(based on soii-_creeping results),from each soil baring to be sent <br /> to a California-ce ,led laboratory for chemical analysis. <br /> Submission of selected soil samples to a Califomia-cettified laboratory for chemical <br /> E <br /> "1 analysis of the following petroleum constituents: benzene, toluene, ethylbenzene, and <br /> ! <br /> xylenes (BTEX), total purgeable hydrocarbons(17H),and total lead by U.S. Environ- . <br /> mental Protection Agency T-PA) Methods 8020,80151modifned,and 6010,respectively. <br /> t <br /> Preparation of thf-s report detailing the results of the field investigation. <br /> 2.0 BACKGROUND INFORMAT[ON <br /> i � 2.1 Pr+ertotas Revart� <br /> A Pana Censure Repart was prepared by Delta dated April 6, 1989. This yvport contake, information <br /> F rertaining to the treatment and disposal of soils excavated and removed dwdng the tank removal and <br /> F replacer ' t procedures. On April 19, 1988,a letter report indicating the results of the prelattlt pull soil <br /> assessment was submitted to San Joaquin County,Department of Health TT <br /> F: r.ya <br /> x 4,` <br />