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• this Nell Gas axailable at the DW R, and the bur;di ng was locked and de4eited when visaed on <br /> lune?') but the weII is c1,-�ar]N a high-Nolunne prodMel intended forgihtinL, use It is <br /> probably: that the «ell p1011.1ce', from a sioniIicant aquifer zone well beim,\ the shallow <quifer <br /> that is impacted at tine Fei esi I'mcking site Hence it is wnItkely to affect of be ai1'ected by <br /> migration of contanunation at the 1 eresi site <br /> 6.0 CONCILUSIOjItS <br /> Low Ievels of Loaso'lne and die.el hxdiocaibons Aere detected clo,,,e to the former US] c a%sty, <br /> suggestino that the le,,, fe.:t ofiise til the grounclwatf-i table since 1996 has di�,sol%,ed a :nnall <br /> volume of residual ;oil h-,diocerbons and slightly incieascd the concentrations ofh}dro, ail-ons <br /> in groundwatet Th: cone °ntrations of benzene towene, and diesel are of minor siLmiticance but <br /> the concentration of MTBE exceeds re-ulator-� rotrls which have declined from 35 ppb to <br /> perhaps 14 ppb of Icss It .s unlikely that Sign Joaquin COuntV PHS/EHD will dant unccnditional <br /> site (JOSrrrz but It rrna� still be possible to close thy case k,itln residual contarnination <br /> PHS/E1-ID regUested t%%o -ongezuti%e quatteis of groundwater monitoiing before considering the <br /> site for closure I he second monitoring e%ent should be scheduled for early September <br />