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-- _ZOO-F- ";' - "' .. a,� - _ `mom ' MAIN <br /> T s0. <br /> "I. 1 <br /> Tea car AessarchCorporation ` <br /> { i1 <br /> i <br /> I <br /> I <br /> IYMODIICTION <br /> E , <br /> A shallow soil gas and groundwater investigation was performed by Tracer Research <br /> ' Corporation(TRC)at 1515 West Weber Avenue in Stockton,California. The investigation <br /> h <br /> was conducted on March 1, 1990 under contract to Kleinfelder. The purpose of the <br /> investigation was to characterize the nature and extent of volatile or compounds <br /> f <br /> (VOCs) present in the subsurface and the shallow groundwater. <br /> �Kr <br /> During, this survey, a total of 2 soil gas samples and 1; groundwater samples were <br /> r <br /> collected and analyzed in the field. The analytical equipment was calibrated for the <br /> followin, compounds: <br /> benzene <br /> toluene <br /> �.r ethylbenzene <br /> Xylenes <br /> total hydrocarbons <br /> f. .. - <br /> Xylenes are reported as the total of the three xylene isomers and total hydrocarbons are <br /> ! approximately C4-C9 aliphatic, alicyclic and aromatic compounds. <br /> The compounds in this suite were chosen as target compounds based on their <br /> 1 suspected presence in the subsurface and amenability to soil gas detection. Soil gas samples <br /> {.a <br /> were screened on the flame ionization detector (FID). <br /> is <br /> r <br /> Nit <br /> Ii <br /> ig <br /> i <br /> i <br />