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a Blockbuster VideolYellow Submarine Site Assessment/Remedial Recommendations Page 5 Apparently, this tank contained only waste motor oil. A cross section through the waste oil tank excavation is shown on Plate 3. The exact extent and depth of this plume is not known, at present. This plume appears to contain only motor oil and no BTX&E components. _.r unc Water ContaminatiVji Poteotial., In order to determine the ground water contamination potential of the remaining soils contamination at this site, we used an analysis from the Luft Manual. 'fables 2 - 3 through 2 - 8 of the manual were used to analyse the leaching potential of these contaminated soils. These worksheets are presented in Appendix G. Tables 2 - 4 (Environmental FAte Worksheet) were used to determine the cumulative contamination level of kerosene, xylenes ands ethyl benzene for the contamination in the northwest portion of the property. This analysis shows: Cum. Cont:. Acceptable Compound Level Depth W jA_VV I Kerosene 1,029pnm 5.0 NA Xylenes 1.1Ippm 5.0 9ppm E.Benzene 0.66ppin 5.0 loppm Primary MCL for drinking water in California is 1.75ppm for Xylene and 0.680ppm for Ethyl Benzene (CVRWQCI3, 1989). 'There is no MCL for kerosene or motor oil, Fea;eral or State. 4.0 CONCLUSIONS There is still soils contamination near the corner and in the area of the waste oil tank, In summation, it appears that there is contaminated soil remaining in place at this site. This soil has the potential to leach Xylene and Ethyl Benzene into theground :eater at leachate concentrations that are below primary MC-L's for drinking water. _ In,the waste oil tank area, the maximum depth: has not been determined. We do know, however, that these soils contain no Benzene, Tolune, Xylene or Ethyl Benzene. Therefore, there appears to be no leachate potential for these compounds from these -- soils.