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�i r' � 'a ° z'�,r '? �-r-r''�.',Y.. a.r .4 .r h fi'a' 'ia•,�? •f" ^.;,;i'61 IN X- u` <br /> Samples gathered were identified, preserved and transported to a California <br /> certified laboratory for chemical analysis. Appropriate EPA protocols were <br /> used )n sample collection, preservation, identification, transportation and <br /> analysis. Samples were tested for benzene, toluene, ethyl benzene, xylene, <br /> the total petroleum hydrocarbons and total lead. Sample analysis protocols <br /> utilized were unable to isolate the benzene, toluene, ethyl benzene and <br /> xylene levels from the Total Petroleum Hydrocarbons levels, indicating that <br /> the residuals, if any, were of an undetermined age and below the levels or <br /> detection of the MPA Protocol used (EPA 8015). Soil borings were <br /> installed utilizing a truck mounted 6-inch solid flyte auger. Borings were <br /> installed in accordance with the guidelines of the RWQCB andlor San Joaquin <br /> Well Installation Specifications. whenever a conflict arose between these <br /> guidelines and specifications, the most severe prevailed. <br /> RECOMMENDATIONS <br /> Based upon the information gathered to date, we make the following comment <br /> and recommendation: <br /> Based upon the analytical results of samples gathered from within the <br /> tank removal excavation backfill , and the area immediately adjacent to <br /> the backfill, we see no reason for further action for this area at <br /> this time. <br /> Dr. Alan D,Seldit.ch, P.E. <br /> 7.1x. tKa� D. .'TC"&Z c. PE, <br />