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Super Unleaded Gasoline 0.5 <br />Diesel 0.5 <br />Kerosene 0.5 <br />-� Napthalene 0.1 <br />Benzene 0.2 <br />Toluene 0.2 <br />Xylene 0.2 <br />PCBs 0.01 <br />Alkyl Halides 0.5 <br />LABORATORY RESULTS <br />Copies of all laboratory results as received from the certified <br />hazardous waste analytical laboratories are enclosed as Appendix <br />-' <br />B. <br />SUMMARY AND CONCLUSIONS <br />Of the areas sampled, two contained contaminants which, while <br />present, were in concentrations below levels generally of <br />concern. The first of these areas was that occupied by the <br />trench and large paved lot described above. Here, (composite) <br />Soil Sample #1A -D revealed the presence of organochlorine <br />pesticides 41-f-'=5—DE and 4,4 -DDT at 25 parts per billion (ppb) <br />and 24 parts per billion respectively. These results are well <br />below the 1.0 part per million level frequently referenced as <br />the "action level" for DDT, DDD, or DDE in soil. <br />The second point of low level contamination was at VTB-3 where <br />a sample of groundwater was acquired at a depth of tVenfy feet <br />below grade. Analytical method EPA 8010 revealed the presence <br />of the halogenated volatile organic compounds methylene chloride <br />(at 1.7 ppb) and 1,1,1 -trichloroethane (at 2.4 ppb). The State <br />-� of California Department of Health Services Recommended Drinking <br />Water Action Level is 40.0 ppb for methylene chloride and 200.0 <br />ppb for 1,1,1 -trichloroethane. <br />As indicated within Chart I and the attached analytical data, <br />significant gasoline contamination of soil was found to exist <br />in the area of the abandoned underground fuel storage tanks <br />-� located adjacent to Bill's Bait Shop. These levels (400-3140 <br />