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3{ i� <br /> I <br /> f <br /> SUMMARY OF INVESTIGATION FINDINGS <br /> AND CLOSURE REPORT E <br /> MAJOR MART FACILITY <br /> 1235 EAST ALPINE AVENUE <br /> STOCKTON, CALIFORNIA p <br /> I <br /> I Iit #� <br /> Agenda <br /> October 4, 1994 P <br /> i# <br /> • Justification for Regulatory Closure <br /> • Satisfactorily addressing the concerns raised by PHS/EHD in February <br /> 1994 I+ <br /> 1 ip <br /> i . Non-detect concentrations of benzene in groundwater monitoring wells <br /> � t <br /> for the last four quarters �. <br /> H <br /> • Negligible concentrations of chemicals of interest in the unsaturated zone <br /> as indicated by volumetric calculations <br /> • Low groundwater velocities to transport benzene or other chemicals of <br /> Iinterest. <br /> 0 Active degradation is occuring in the vadose;pzone and in the saturated <br /> sandy zone. <br /> 1i. a <br /> it l <br /> - 2 - <br /> ' 3 <br /> 13 <br />